CN118049654A - Two-stage drying, preheating and burning system for high-moisture gasified ash - Google Patents

Abstract

The invention discloses a two-stage drying, preheating and incineration system for high-moisture gasified ash, which relates to the technical field of gasified ash recycling and utilization, and comprises a boiler side frame, an incineration boiler is installed inside the boiler side frame, the top of the incineration boiler is connected with a feed pump, a flow sensor is installed on the top of the feed pump, the side end of the feed pump is connected with a feed preheating multistage pipe, a hot mist collector is installed on the outer peripheral side of the pipe end of the feed preheating multistage pipe, the side end of the feed preheating multistage pipe is connected with a first drying treatment tank, and a steam convergence tank is installed on the top of the first drying treatment tank. The overall device effectively realizes the efficient separation of moisture and carbon ash in the drying, preheating and modification integrated device of high-moisture (>50%) difficult-to-burn ash, breaks through the efficient and clean incineration of high-moisture ash and solid waste in a composite cycle, reduces the generation of harmful gases, has stable combustion, and a relatively small excess coefficient, can prevent the generation of excessive ammonia oxides, and is environmentally friendly and easy to promote.

Description

A two-stage drying, preheating and incineration system for high-moisture gasified ash

Technical Field

The invention relates to the technical field of gasification ash recovery and utilization, and in particular to a two-stage drying, preheating and incineration system for high-moisture gasification ash.

Background technique

High-efficiency coal gasification technology is an important application direction in clean coal technology. During the coal gasification process, most of the carbon contained in the coal reacts with H2O, CO2, O2, etc. to generate raw coal gas, and other inorganic minerals and unburned carbon contained in the coal are converted into gasification ash under high temperature conditions. At present, the treatment and utilization rate of gasification ash is low. Except for a small amount of usable gasification ash, it is mainly used in building materials, soil remediation, road construction, and aluminum silicon ceramic preparation. A large amount of waste gasification ash is disposed of by landfill, which causes waste of resources and environmental pollution. Gasification ash contains a lot of unburned carbon. Sending gasification ash into a boiler for combustion to generate steam is an efficient and environmentally friendly way to treat gasification ash.

However, in the existing technology, during the two-stage drying, preheating and incineration process of high-moisture gasification ash, it is difficult to efficiently separate the moisture and carbon ash of high-moisture (>50%) difficult-to-burn ash in the integrated drying, preheating and modification device. At the same time, the existing incineration technology and equipment cannot effectively achieve efficient incineration of high-moisture and ultra-low calorific value ash. Therefore, it is necessary to propose a two-stage drying, preheating and incineration system for high-moisture gasification ash.

Summary of the invention

The purpose of the present invention is to provide a two-stage drying, preheating and incineration system for high-moisture gasified ash, so as to solve the problem that in the two-stage drying, preheating and incineration process of high-moisture gasified ash, it is difficult to efficiently separate the moisture and carbon ash of high-moisture (>50%) non-combustible ash in the drying, preheating and modification integrated device, and the existing incineration technology and equipment cannot effectively achieve efficient incineration of high-moisture and ultra-low calorific value ash.

To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a two-stage drying, preheating and incineration system for high-moisture gasified ash, comprising a boiler side frame, an incineration boiler is installed inside the boiler side frame, the top of the incineration boiler is connected to a feed pump, a flow sensor is installed on the top of the feed pump, the side end of the feed pump is connected to a feed preheating multistage pipe, a hot mist collector is installed on the outer peripheral side of the pipe end of the feed preheating multistage pipe, the side end of the feed preheating multistage pipe is connected to a first drying treatment tank, a steam convergence tank is installed on the top of the first drying treatment tank, a first electric iris valve structure is installed at the bottom end of the first drying treatment tank, a second drying treatment tank is installed at the bottom end of the first electric iris valve structure, a second drying treatment tank is installed at the bottom end of the second drying treatment tank, a third drying treatment tank is installed at the bottom end of the second electric iris valve structure, and the second electric iris valve structure is installed at the bottom end of the second drying treatment tank. The membrane valve structure is the same as the first electric iris valve structure, the side ends of the first drying process tank, the second drying process tank and the third drying process tank are installed with microwave drying adjustment components, the side ends of the boiler side frames are fastened with supporting side frames, the side ends of the supporting side frames are mounted with bottom shaft rotating rail seats, the side ends of the first drying process tank are connected with secondary drying components, the top of the first drying process tank is installed with a transmission component, a plurality of groups of pressure balance regulators are installed on the outer circumference of the conduction shaft of the transmission component, a plurality of groups of pressure balance regulators are provided with a plurality of upward hot air pipes on the side wall surfaces, the outer circumferences of the plurality of upward hot air pipes are connected with heat collecting valve ports, the interior of the second drying process tank is installed with spiral drying rakes, the interior of the third drying process tank is installed with a slag powder drying component, the axis of the bottom shaft rotating rail seat is integrated with the conduction shafts of the slag powder drying component and the transmission component in turn.

Preferably, the slag powder drying component includes a material receiving chassis, the axial end of the material receiving chassis is connected to an installation shaft connecting column, and multiple groups of honeycomb rotating heat conductive plates are installed on the outer circumference of the shaft connecting column, and there are grinding gaps between the bottom walls of the multiple groups of honeycomb rotating heat conductive plates and the top wall surfaces of the material receiving chassis, the surfaces of the multiple groups of honeycomb rotating heat conductive plates are provided with pin sharp groove plates, and the outer side wall surfaces of the multiple groups of honeycomb rotating heat conductive plates are fastened with volute bulk material trays.

Preferably, the first electric iris valve structure includes a bottom connection plate, and the two side surfaces of the bottom connection plate are respectively installed and connected to the bottom of the first drying process tank and the top of the second drying process tank. A pneumatic iris valve is installed inside the bottom connection plate, and a sealing connection groove is provided at the axial closed end of the pneumatic iris valve. The sealing connection groove and the conduction shaft are fit-connected by a sealing ring.

Preferably, the secondary drying component includes a feed pipe, the side end of the feed pipe is connected to a pneumatic conveying device, the side end of the pneumatic conveying device is connected to a centrifuge tank, an infrared heating furnace is installed on the outside of the side end of the centrifuge tank, and the infrared heating furnace is interspersed and moved inside the centrifuge tank through multiple groups of infrared radiation heaters to form a ring distribution, the side end of the feed pipe is connected to the third drying treatment tank, the side end of the centrifuge tank is connected to a waste residue collection box, the side end of the infrared heating furnace is fastened to a bracket, a return device is installed on the top of the bracket, the top of the return device is connected to a return pipe, and the top side end of the return pipe is connected to the surface of the first drying treatment tank.

Preferably, a metering doser is installed on the top of the infrared heating furnace, and the side end of the metering doser is connected to a first modifier dosing pipe, and the side end of the first modifier dosing pipe is connected to the top of the centrifuge tank, and the top of the metering doser is connected to a second modifier dosing pipe, and the side end of the second modifier dosing pipe is connected to the side wall of the third drying treatment tank, and flow control valves are installed on the outside of the side ends of the first modifier dosing pipe and the second modifier dosing pipe.

Preferably, a cyclone separator is installed at the bottom side end of the bottom shaft rotating rail seat, and the cyclone separator runs along the inner walls of the second drying treatment tank and the third drying treatment tank in sequence through a separation pipeline.

Preferably, the microwave drying adjustment component includes a bottom mounting bracket, a microwave generator is installed on the top of the bottom mounting bracket, the side ends of the microwave generator are respectively connected to three groups of microwave generating tubes, guides are installed on the outside of the side ends of the three groups of microwave generating tubes, the side ends of the three groups of microwave generating tubes are connected to the surfaces of the first drying treatment tank, the second drying treatment tank, and the third drying treatment tank in turn, and regulating valves are installed on the outer circumferences of the three groups of microwave generating tubes.

Preferably, the transmission assembly includes a transmission motor, the bottom output end of the transmission motor is connected to a first driving gear, the tooth angle end of the first driving gear is meshedly connected with a toothed belt, the inner side end of the toothed belt is meshedly connected with a second driving gear, and the bottom axial end of the second driving gear is equipped with a speed regulator.

Preferably, the side wall surface of the steam convergence tank is connected to a heat transfer pipe, a throttle valve is installed on the side end of the heat transfer pipe, the bottom end of the heat transfer pipe is connected to a heat pump, the side end of the heat pump is connected to an air pipe, the side end of the air pipe is connected to a heat collection chamber, and the top of the heat collection chamber is connected to the bottom of the incineration boiler.

Preferably, an air flow guide is installed at the side end of the incineration boiler, the side end of the air flow guide is connected to an oxygen supply fan, an air supply plate tube is installed at the top of the incineration boiler, and a PLC controller is installed on the side wall surface of the first drying tank.

Compared with the prior art, the present invention has the following beneficial effects:

1. In the present invention, when the whole device is operating, the oxygen supply fan is used in cooperation with the air flow guide to provide a directional supply of oxygen guide airflow to the incineration boiler, thereby ensuring the operating efficiency of the incineration boiler and reducing the operating energy consumption. In cooperation with the PLC controller, the temperature, air pressure, flow rate and balance inside the whole device are effectively controlled and adjusted in cooperation with the corresponding sensor group. In cooperation with the wind plate tube, it is convenient for the operation of the whole device to form a secondary air supply operation, further reducing the energy consumption used by the device. Then, the high-moisture gasified ash is transported in cooperation with the suction pump and the feed preheating multi-stage pipe, and the flow rate of the high-moisture gasified ash is controlled according to the flow sensor. At the same time, the hot mist collector is started to collect and process the particulate matter in the high-moisture gasified ash during transportation, and according to the first drying treatment tank and the second The sensor group installed on the inner wall surface of the drying tank and the third drying tank performs real-time intelligent detection on the overall device. When preheating and drying are insufficient, the microwave generator is started, and the microwave heating generated is used to cooperate with the guiding effect of the guides in the three groups of microwave generating tubes to efficiently, accurately and quickly heat the slag ash inside the first drying tank, the second drying tank and the third drying tank, thereby reducing the high content of water in the carbon ash and improving the separation of water and carbon ash. The overall device effectively realizes the efficient separation of water and carbon ash in the drying, preheating and modification integrated device of high-moisture (>50%) difficult-to-burn ash, breaks through the efficient and clean incineration of high-moisture ash and solid waste in a composite cycle, reduces the generation of harmful gases, has stable combustion, and a relatively small excess coefficient, which can prevent the generation of excessive ammonia oxides, and is environmentally friendly and easy to promote.

2. In the present invention, the pneumatic iris valve is opened after the processing operation inside the first drying tank, so that the sealing connection slot and the conduction shaft are separated, so that the processed material can be transported to the second drying tank. With the cooperation of the spiral drying rake, the ash and slag that fall into the tank are dried and preheated. After that, the second electric iris valve structure is started according to the preset program, so that the material after spiral drying falls into the third drying tank. When the material falls into the receiving bottom plate, the large pieces of ash and slag will vibrate with the cooperation of the zigzag-shaped bulk material plate, so that the large pieces of ash and slag will be The slag and ash are formed into small particles due to mutual forces, and the slag and ash are further processed and ground with the cooperation of the grinding gap between the pin sharp groove plate surface, the bottom wall of multiple sets of honeycomb rotating heat conduction plates and the top wall surface of the receiving bottom plate. In addition, the heat transfer efficiency is improved with the cooperation of multiple sets of honeycomb rotating heat conduction plates, which facilitates the drying of water molecules in the slag and ash. In addition, with the cooperation of the cyclone separator, it is convenient to adsorb and separate the moisture, gas and carbon ash particles generated in the second drying treatment tank and the third drying treatment tank, thereby ensuring the overall efficient incineration of high-moisture and ultra-low calorific value ash.

3. In the present invention, when it is detected that the water content of the carbon ash in the centrifugal tank is too high with the cooperation of the return device, the carbon ash and moisture will be adsorbed, and the adsorbed material will be returned to the first drying treatment tank for drying and preheating again. When the centrifugal tank is operating, the modifier in the metering feeder is adjusted according to the demand by using the first modifier feeding pipe and the second modifier feeding pipe under the action of the flow control valve according to the temperature sensor group and the balance sensor group on the side wall of the third drying treatment tank and the inside of the centrifugal tank, so that the preheating drying, moisture and carbon ash content in the centrifugal tank are in a safe balance.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the main structure of a two-stage drying, preheating and incineration system for high-moisture gasified ash of the present invention;

FIG2 is a schematic side view of the structure of a two-stage drying, preheating and incineration system for high-moisture gasified ash according to the present invention;

FIG3 is a schematic structural diagram of a microwave drying regulating component in a two-stage drying, preheating and incineration system for high-moisture gasified ash according to the present invention;

FIG4 is a schematic diagram of the installation position structure of the secondary drying component in a two-stage drying, preheating and incineration system for high-moisture gasified ash according to the present invention;

FIG5 is a schematic structural diagram of a secondary drying component in a two-stage drying, preheating and incineration system for high-moisture gasified ash according to the present invention;

FIG6 is a schematic diagram of the structure of a transmission component in a two-stage drying, preheating and incineration system of high-moisture gasified ash according to the present invention;

7 is a schematic diagram of the installation position of the slag powder drying component in a two-stage drying, preheating and incineration system for high-moisture gasified ash according to the present invention;

FIG8 is an enlarged structural schematic diagram of point A in FIG7 in a two-stage drying, preheating and incineration system for high-moisture gasified ash of the present invention;

FIG9 is a schematic structural diagram of a slag powder drying component in a two-stage drying, preheating and incineration system for high-moisture gasified ash according to the present invention;

FIG. 10 is a schematic diagram of the structure of the first electric iris valve in a two-stage drying, preheating and incineration system for high-moisture gasified ash according to the present invention.

In the figure: 1, boiler side frame; 2, wind plate tube; 3, air flow guide; 4, oxygen supply fan; 5, incineration boiler; 6, heat collection chamber; 7, suction pump; 8, flow sensor; 9, material feeding preheating multi-stage tube; 10, transmission assembly; 101, transmission motor; 102, first drive gear; 103, second drive gear; 104, toothed belt; 105, speed regulator; 11, first drying tank; 12, first electric iris valve structure; 121, bottom plate; 122, pneumatic iris valve; 123, sealing connection notch; 13, steam collection tank; 14, second drying tank; 15, second electric iris valve structure; 16, microwave drying adjustment assembly; 161, bottom mounting bracket; 162, microwave generator; 163, guide; 164, microwave generating tube; 165, regulating valve; 17. Support side frame; 18. Secondary drying component; 181. Feed pipe; 182. Pneumatic conveying device; 183. Infrared heating furnace; 184. Bracket; 185. Returner; 186. Return pipe; 187. Centrifugal tank; 188. Metering feeder; 189. First modifier feeding pipe; 1890. Second modifier feeding pipe; 19. Air pipe; 20. Heat pump; 21. Heat transfer pipe; 22. Throttle valve; 23. PLC controller; 24. Cyclone separator; 25. Bottom shaft rotating rail seat; 26. Slag powder drying component; 261. Material receiving bottom plate; 262. Honeycomb rotating heat conduction plate; 263. Shaft connecting column; 264. Pin sharp groove plate surface; 265. Hui pattern bulk material tray; 27. Spiral drying rake; 28. Pressure balance regulator; 29. Upward hot air pipe; 30. Heat collecting valve port.

Detailed ways

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Referring to Figures 1 to 10: a high-moisture gasification ash two-stage drying preheating and incineration system, including a boiler side frame 1, an incineration boiler 5 is installed inside the boiler side frame 1, the top of the incineration boiler 5 is connected to a suction pump 7, a flow sensor 8 is installed on the top of the suction pump 7, the side end of the suction pump 7 is connected to a feed preheating multistage pipe 9, a hot mist collector is installed on the outer peripheral side of the pipe end of the feed preheating multistage pipe 9, the side end of the feed preheating multistage pipe 9 is connected to a first drying treatment tank 11, a steam convergence tank 13 is installed on the top of the first drying treatment tank 11, a first electric iris valve structure 12 is installed at the bottom end of the first drying treatment tank 11, a second drying treatment tank 14 is installed at the bottom end of the first electric iris valve structure 12, a second drying treatment tank 14 is installed at the bottom end of the second drying treatment tank 14, a second electric iris valve structure 15 is installed at the bottom end of the second electric iris valve structure 15, a third drying treatment tank is installed at the bottom end of the second electric iris valve structure 15, the second electric iris valve structure 15 and the first electric iris valve structure are connected. The structure 12 is the same, the side ends of the first drying treatment tank 11, the second drying treatment tank 14 and the third drying treatment tank are installed with a microwave drying adjustment component 16, the side end of the boiler side frame 1 is fastened with a supporting side frame 17, the side end of the supporting side frame 17 is set up with a bottom shaft rotating rail seat 25, the side end of the first drying treatment tank 11 is connected with a secondary drying component 18, the top of the first drying treatment tank 11 is installed with a transmission component 10, and a plurality of groups of pressure balance regulators 28 are installed on the outer peripheral side of the conduction shaft of the transmission component 10. A plurality of upward hot air pipes 29 are arranged on the side wall surface of the plurality of groups of pressure balance regulators 28, and the outer peripheral side of the plurality of upward hot air pipes 29 is connected with a heat collecting valve port 30, the interior of the second drying treatment tank 14 is installed with a spiral drying rake 27, and the interior of the third drying treatment tank is installed with a slag powder drying component 26, and the axis of the mounting bottom shaft rotating rail seat 25 is integrated with the slag powder drying component 26 and the conduction shaft of the transmission component 10 in sequence.

As shown in Figures 7 and 9, the slag powder drying component 26 includes a material receiving chassis 261, the axial end of the material receiving chassis 261 is connected to the installation shaft connecting column 263, and multiple groups of honeycomb rotating heat conducting plates 262 are installed on the outer peripheral side of the shaft connecting column 263. There is a grinding gap between the bottom wall of the multiple groups of honeycomb rotating heat conducting plates 262 and the top wall surface of the material receiving chassis 261. The surface of the multiple groups of honeycomb rotating heat conducting plates 262 is provided with a pin sharp groove plate surface 264, and the outer wall surface of the multiple groups of honeycomb rotating heat conducting plates 262 is fastened with a zigzag pattern to pack bulk materials. Plate 265, when the material falls into the receiving bottom plate 261, the large pieces of ash will vibrate with the cooperation of the spiral bulk material plate 265, so that the large pieces of ash will form small particles due to the mutual force, and with the cooperation of the grinding gap between the pin sharp groove plate surface 264 and the bottom wall of the multiple groups of honeycomb rotating heat conductive plates 262 and the top wall surface of the receiving bottom plate 261, the ash is further processed and ground, and with the cooperation of the multiple groups of honeycomb rotating heat conductive plates 262, the heat transfer efficiency is improved, so as to facilitate the drying of water molecules in the ash.

As shown in Figures 1, 2, 3, 4, 6, 7 and 10, the first electric iris valve structure 12 includes a bottom plate 121, and the two side surfaces of the bottom plate 121 are respectively installed and connected to the bottom of the first drying tank 11 and the top of the second drying tank 14. A pneumatic iris valve 122 is installed inside the bottom plate 121. A sealing connection slot 123 is opened at the axial closed end of the pneumatic iris valve 122. The sealing connection slot 123 and the conductive shaft are connected by a sealing ring. The first electric iris valve structure 12 and the second electric iris valve structure 15, that is, the bottom plate 121, make the first drying tank 11, the second drying tank 14 and the third drying tank form a hierarchical connection. After the first drying tank 11, the second drying tank 14 and the third drying tank are processed, the pneumatic iris valve 122 is opened to separate the sealing connection slot 123 and the conductive shaft, so as to facilitate the transportation of the processed materials.

As shown in Figures 1, 4 and 5, the secondary drying component 18 includes a feed pipe 181, the side end of the feed pipe 181 is connected to a pneumatic conveying device 182, the side end of the pneumatic conveying device 182 is connected to a centrifugal tank 187, an infrared heating furnace 183 is installed on the outside of the side end of the centrifugal tank 187, the infrared heating furnace 183 is interspersed through multiple groups of infrared radiation heaters and runs inside the centrifugal tank 187 to form a ring distribution, the side end of the feed pipe 181 is connected to the third drying treatment tank, the side end of the centrifugal tank 187 is connected to a waste residue collection box, the side end of the infrared heating furnace 183 is fastened to a bracket 184, a return device 185 is installed on the top of the bracket 184, and the top of the return device 185 is connected to a return pipe 186, and the return material The top side end of the tube 186 is connected to the surface of the first drying treatment tank 11. When the processed carbon slag material is transported to the centrifugal tank 187 for centrifugal operation through the feed pipe 181 with the cooperation of the pneumatic conveying device 182, and the infrared heating furnace 183 is started. According to the sensor group on the inner wall of the centrifugal tank 187, multiple groups of infrared radiation heaters that are interspersed and run in the centrifugal tank 187 to form a ring distribution are started to evaporate water molecules from the carbon ash to achieve rapid drying. Then, with the cooperation of the return device 185, when it is detected that the water content of the carbon ash in the centrifugal tank 187 is too high, the carbon ash and moisture will be adsorbed, and the adsorbed material will be returned to the first drying treatment tank 11 for another drying preheating operation.

As shown in Figures 1, 4 and 5, a metering doser 188 is installed on the top of the infrared heating furnace 183, and the side end of the metering doser 188 is connected to a first modifier dosing pipe 189, and the side end of the first modifier dosing pipe 189 is connected to the top of the centrifugal tank 187, and the top of the metering doser 188 is connected to a second modifier dosing pipe 1890, and the side end of the second modifier dosing pipe 1890 is connected to the side wall of the third drying treatment tank, and the first modifier dosing pipe 189 and the second modifier dosing pipe 1890 are connected to the side wall of the third drying treatment tank. 90 are both installed with flow control valves 1891 on the outside of the side ends. When the centrifugal tank 187 is operating, the modifying agent in the metering feeder 188 is adjusted according to the demand by using the first modifying agent adding pipe 189 and the second modifying agent adding pipe 1890 under the action of the flow control valve 1891 according to the temperature sensor group and the balance sensor group on the side wall of the third drying treatment tank and the inside of the centrifugal tank 187, so that the preheating drying, moisture and carbon ash contents in the centrifugal tank 187 are in a safe balance.

As shown in Figures 2, 4, 6 and 7, a cyclone separator 24 is installed at the bottom side end of the bottom shaft rotating rail seat 25. The cyclone separator 24 runs along the inner walls of the second drying tank 14 and the third drying tank in sequence through a separation pipeline. With the cooperation of the cyclone separator 24, it is convenient to adsorb and separate the moisture, gas and carbon ash particles generated in the second drying tank 14 and the third drying tank, thereby ensuring the overall efficient incineration of high-moisture and ultra-low calorific value ash.

As shown in FIGS. 2 and 3 , the microwave drying regulating assembly 16 comprises a bottom mounting bracket 161, a microwave generator 162 is mounted on the top of the bottom mounting bracket 161, the side ends of the microwave generator 162 are respectively connected with three groups of microwave generating tubes 164, the side ends of the three groups of microwave generating tubes 164 are externally mounted with guides 163, the side ends of the three groups of microwave generating tubes 164 are sequentially connected with the surfaces of the first drying tank 11, the second drying tank 14, and the third drying tank, and the external peripheral sides of the three groups of microwave generating tubes 164 are mounted with regulating valves 165. When the high-moisture gasification ash two-stage drying is performed, During the preheating operation, the sensor group installed on the inner wall surface of the first drying tank 11, the second drying tank 14, and the third drying tank is used to perform real-time intelligent detection on the entire device. When the preheating drying is insufficient, the microwave generator 162 is started, and the microwave heating generated is used to cooperate with the guiding function of the guide 163 in the three groups of microwave generating tubes 164 to efficiently, accurately and quickly heat the slag ash inside the first drying tank 11, the second drying tank 14, and the third drying tank, thereby reducing the high content of water in the carbon ash and improving the separation of water and carbon ash.

As shown in Figures 1, 2, 4 and 6, the transmission assembly 10 includes a transmission motor 101, the bottom output end of the transmission motor 101 is connected to a first drive gear 102, the tooth angle end of the first drive gear 102 is meshedly connected with a toothed belt 104, the inner side end of the toothed belt 104 is meshedly connected with a second drive gear 103, and a speed regulator 105 is installed at the bottom axial end of the second drive gear 103. With the cooperation of the transmission motor 101, it is convenient to make the first drive gear 102, the toothed belt 104 and the second drive gear 103 rotate in sequence under the action of the speed regulator 105, thereby driving the conduction shaft to drive the spiral drying rakes 27 and the slag powder drying assembly 26, which are respectively located inside the second drying treatment tank 14 and the third drying treatment tank to form an operation.

As shown in Figures 1 and 4, the side wall surface of the steam convergence tank 13 is connected to a heat transfer pipe 21, a throttle valve 22 is installed at the side end of the heat transfer pipe 21, the bottom end of the heat transfer pipe 21 is connected to a heat pump 20, the side end of the heat pump 20 is connected to an air pipe 19, the side end of the air pipe 19 is connected to a heat collection chamber 6, the top of the heat collection chamber 6 is connected to the bottom of the incineration boiler 5, with the cooperation of the heat pump 20, when the first drying tank 11, the second drying tank 14 and the third drying tank are operating, the evaporation heat generated will, under the action of the heat transfer pipe 21, transport the low-heat source steam to the heat collection chamber 6 through the air pipe 19, so as to facilitate the energy supply to the incineration boiler 5 and reduce the overall operating energy consumption.

As shown in Figures 1 and 2, an air flow guide 3 is installed at the side end of the incineration boiler 5, and the side end of the air flow guide 3 is connected to an oxygen supply fan 4. An air supply plate tube 2 is installed on the top of the incineration boiler 5, and a PLC controller 23 is installed on the side wall surface of the first drying treatment tank 11. When performing the overall operation, the oxygen supply fan 4 is used in conjunction with the air flow guide 3 to provide a directional supply of oxygen guide airflow to the incineration boiler 5, thereby ensuring the operating efficiency of the incineration boiler 5 and reducing the operating energy consumption. In addition, in conjunction with the PLC controller 23, the temperature, air pressure, flow rate, and balance inside the overall device are effectively controlled and adjusted in conjunction with the corresponding sensor group. In conjunction with the air plate tube 2, it is convenient for the operation of the overall device to form a secondary air supply operation, thereby further reducing the energy consumption used by the device.

The wiring diagram of the wind plate tube 2, air flow guide 3, oxygen supply fan 4, suction pump 7, transmission motor 101, microwave generator 162, return feeder 185, centrifugal tank 187, metering feeder 188, heat pump 20, PLC controller 23, cyclone separator 24 and pressure balance regulator 28 in the present invention belongs to the common knowledge in the field, and its working principle is a well-known technology. Its model is selected according to the actual use. Therefore, the control method and wiring arrangement of the wind plate tube 2, air flow guide 3, oxygen supply fan 4, suction pump 7, transmission motor 101, microwave generator 162, return feeder 185, centrifugal tank 187, metering feeder 188, heat pump 20, PLC controller 23, cyclone separator 24 and pressure balance regulator 28 are no longer explained in detail.

The use method and working principle of this device: First, when the whole device is operating, the oxygen supply fan 4 is used in cooperation with the airflow guide 3 to provide a directional supply of oxygen guide airflow to the incineration boiler 5, so as to ensure the operating efficiency of the incineration boiler 5 and reduce the operating energy consumption. In cooperation with the PLC controller 23, the temperature, air pressure, flow rate and balance inside the whole device are effectively controlled and adjusted in cooperation with the corresponding sensor group. In cooperation with the wind plate tube 2, it is convenient for the operation of the whole device to form a secondary air supply operation, further reducing the energy consumption used by the device. Then, the high-moisture gasified ash is transported in cooperation with the suction pump 7 and the feed preheating multi-stage pipe 9, and The flow rate of the high-moisture gasified ash is controlled according to the flow sensor 8, and the hot mist collector is started to collect and process the particulate matter in the high-moisture gasified ash being transported. According to the sensor group (pressure sensor, temperature sensor and temperature difference balance sensor) installed on the inner wall surface of the first drying treatment tank 11, the second drying treatment tank 14 and the third drying treatment tank, the whole device is intelligently detected in real time. When the preheating drying is insufficient, the microwave generator 162 is started, and the microwave heating is generated, and the first drying treatment tank 11, the second drying treatment tank 14 and the third drying treatment tank are respectively cooperated with the guiding effect of the guide 163 from the three groups of microwave generating tubes 164. The slag ash inside the three drying tanks is efficiently, accurately and quickly heated to reduce the high content of water in the carbon ash and improve the separation of water and carbon ash, and then transported to the first drying tank 11. In the first drying tank 11, with the cooperation of multiple groups of pressure balance regulators 28, wind pressure regulation is generated inside the first drying tank 11, so that after the internal hot steam is affected by the wind pressure, it will form a pressure balance with the wind pressure, so that the hot steam generated as a whole is restricted and cannot expand upward. Then, with the cooperation of multiple upward hot air pipes 29 and heat collection valve ports 30, the restricted hot steam is adsorbed and rises to gather in the steam gathering tank 13, which is convenient for subsequent With the cooperation of the heat pump 20, when the first drying treatment tank 11, the second drying treatment tank 14 and the third drying treatment tank are operating, the evaporation heat generated will, under the action of the heat transfer pipe 21, transport the steam of the low heat source to the heat collection chamber 6 through the air pipe 19, so as to facilitate the energy supply for the incineration boiler 5 and reduce the overall operation energy consumption. Then, with the cooperation of the transmission motor 101, it is convenient to make the first driving gear 102, the toothed belt 104 and the second driving gear 103 rotate in sequence under the action of the speed regulator 105, thereby driving the conduction shaft to drive the spiral drying rakes 27 and the slag powder drying assembly 26 located in the second drying treatment tank 14 and the third drying treatment tank, respectively. The inside of the treatment tank forms a rotation operation. Secondly, after the processing operation inside the first drying treatment tank 11, the pneumatic iris valve 122 is opened, so that the sealing connection slot 123 and the conduction shaft are separated, so that the processed material is transported to the second drying treatment tank 14. With the cooperation of the spiral drying rake 27, the ash and slag that fall into it are dried and preheated. After that, the second electric iris valve structure 15 is started according to the preset program, so that the material after spiral drying falls into the third drying treatment tank. When the material falls into the receiving bottom plate 261, the large pieces of ash and slag will vibrate with the cooperation of the volute bulk material plate 265, so that the large pieces of ash and slag are formed into small particles due to mutual force. The slag ash is further processed and ground under the cooperation of the grinding gap between the pin sharp groove plate surface 264 and the bottom wall of the multiple groups of honeycomb rotating heat conducting plates 262 and the top wall surface of the receiving bottom plate 261, and the multiple groups of honeycomb rotating heat conducting plates 262 are used to improve the heat transfer efficiency, so as to facilitate the drying of water molecules in the slag ash, and under the cooperation of the cyclone separator 24, it is convenient to adsorb and separate the moisture, gas and carbon ash particles generated in the second drying treatment tank 14 and the third drying treatment tank, so as to ensure the overall efficient incineration of high-moisture and ultra-low calorific value ash slag, and then the treated carbon slag material is transported by the feed pipe 181 in cooperation with the pneumatic conveying device 182. The carbon ash is sent to the centrifugal tank 187 for centrifugal operation, and the infrared heating furnace 183 is started. According to the sensor group on the inner wall of the centrifugal tank 187, multiple groups of infrared radiation heaters that are interspersed and run in the centrifugal tank 187 to form a ring distribution are started to evaporate water molecules from the carbon ash to achieve rapid drying. Then, with the cooperation of the return device 185, when it is detected that the water content of the carbon ash in the centrifugal tank 187 is too high, the carbon ash and water will be adsorbed, and the adsorbed material will be returned to the first drying treatment tank 11 to perform drying preheating operation again. When the centrifugal tank 187 is in operation, the modified additive in the metering feeder 188 is adjusted according to the side wall of the third drying treatment tank and the centrifugal tank. With the cooperation of the temperature sensor group and the balance sensor group inside the tank 187, the first modifier dosing pipe 189 and the second modifier dosing pipe 1890 are used to adjust according to demand under the action of the flow control valve 1891, so that the preheating drying, moisture and carbon ash contents in the centrifugal tank 187 are in a safe balance, so that the overall device can effectively realize the efficient separation of moisture and carbon ash in the drying, preheating and modification integrated device of high-moisture (>50%) difficult-to-burn ash, break through the efficient and clean incineration of high-moisture ash and solid waste in a composite cycle, reduce the generation of harmful gases, stabilize combustion, and have a relatively small excess coefficient, which can prevent the generation of excessive ammonia oxides, and is environmentally friendly and easy to promote.

Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A high-moisture gasification ash two-stage drying, preheating and burning system is characterized in that: including boiler strake (1), the inside of boiler strake (1) erects the installation and burns boiler (5), the top intercommunication of burning boiler (5) has draw material pump (7), draw the top installation of material pump (7) and set up flow sensor (8), the side intercommunication of drawing material pump (7) has defeated material to preheat multistage pipe (9), defeated material to preheat the outside week side of pipe end of multistage pipe (9) and set up the hot fog collector, defeated material to preheat the side intercommunication of multistage pipe (9) has first drying treatment jar (11), the top installation of first drying treatment jar (11) sets up steam and gathers jar (13), the bottom installation of first drying treatment jar (11) sets up first electronic iris valve structure (12), the bottom installation of first electronic iris valve structure (12) sets up second drying treatment jar (14), the bottom installation of second drying treatment jar (14) sets up second electronic iris valve structure (15), the bottom installation of second electronic iris valve structure (15) sets up third drying treatment jar (16), second electronic iris valve structure (12) and second drying valve structure (12) are the same, the side end fastening of boiler limit frame (1) is connected with support limit frame (17), installation lower shaft rotation rail seat (25) is established to the side end of support limit frame (17), the side end intercommunication of first drying treatment jar (11) has secondary drying module (18), the top installation of first drying treatment jar (11) sets up drive assembly (10), the outside week side installation of drive assembly (10) sets up multiunit pressure balance regulator (28), multiunit pressure balance regulator (28)'s lateral wall surface walking has many upwards hot air pipe (29), many the outside week side intercommunication of upwards hot air pipe (29) has heat collecting valve port (30), the internally mounted of second drying treatment jar (14) sets up spiral drying harrow leaf (27), the internally mounted of third drying treatment jar sets up slag powder drying module (26), the axle center of installation lower shaft rotation rail seat (25) in proper order and slag powder drying module (26), drive assembly (10) conduction axle form the integration and connect.

2. The two-stage drying, preheating and incinerating system for high-moisture gasified ash of claim 1, wherein: the slag powder drying assembly (26) comprises a receiving chassis (261), an axle center end of the receiving chassis (261) is connected with a shaft connecting column (263), a plurality of groups of honeycomb rotating heat-conducting plates (262) are arranged on the outer peripheral side of the shaft connecting column (263), grinding gaps exist on the bottom wall of each honeycomb rotating heat-conducting plate (262) and the surface of the top wall of the receiving chassis (261), pin sharp groove plate surfaces (264) are formed in the surfaces of the honeycomb rotating heat-conducting plates (262), and a plurality of groups of outer side wall surfaces of the honeycomb rotating heat-conducting plates (262) are fixedly connected with a round-grained bulk material disc (265).

3. The two-stage drying, preheating and incinerating system for high-moisture gasified ash of claim 1, wherein: the first electric iris valve structure (12) comprises a bottom connecting disc (121), the two side surfaces of the bottom connecting disc (121) are respectively connected with the bottom of the first drying treatment tank (11) and the top of the second drying treatment tank (14), a pneumatic iris valve (122) is arranged in the bottom connecting disc (121), a sealing connection notch (123) is formed in the axis closing end of the pneumatic iris valve (122), and the sealing connection notch (123) and the conduction shaft are connected through sealing rings in a fitting mode.

4. The two-stage drying, preheating and incinerating system for high-moisture gasified ash of claim 1, wherein: the secondary drying assembly (18) comprises a conveying pipe (181), pneumatic conveying devices (182) are arranged at the side ends of the conveying pipe (181) in a communicating mode, centrifugal tanks (187) are arranged at the side ends of the pneumatic conveying devices (182) in a communicating mode, infrared heating furnaces (183) are arranged at the side ends of the centrifugal tanks (187) in an externally mounted mode, the infrared heating furnaces (183) are alternately walked inside the centrifugal tanks (187) through a plurality of groups of infrared radiation heaters to form annular distribution, the side ends of the conveying pipe (181) are communicated with a third drying treatment tank, the side ends of the centrifugal tanks (187) are communicated with a waste residue collecting box, a support (184) is fixedly connected with the side ends of the infrared heating furnaces (183), a return device (185) is arranged at the top of the support (184) in an erected mode, and the top side ends of the return device (185) are communicated with a return pipe (186), and the top of the return pipe (186) are communicated with the surface of the first drying treatment tank (11).

5. The two-stage drying, preheating and incinerating system for high-moisture gasified ash of claim 4, wherein: the top installation of infrared heating stove (183) sets up measurement throwing device (188), the side intercommunication of measurement throwing device (188) has first modifier throwing pipe (189), the side of first modifier throwing pipe (189) and the top intercommunication of centrifugal jar (187), the top intercommunication of measurement throwing device (188) has second modifier throwing pipe (1890), the side of second modifier throwing pipe (1890) and the lateral wall intercommunication of third drying treatment jar, the outside all installation of side of first modifier throwing pipe (189) and second modifier throwing pipe (1890) sets up flow control valve (1891).

6. The two-stage drying, preheating and incinerating system for high-moisture gasified ash of claim 1, wherein: the cyclone separator (24) is arranged at the bottom side end of the bottom shaft rotating rail seat (25), and the cyclone separator (24) sequentially walks on the inner walls of the second drying treatment tank (14) and the third drying treatment tank through separation pipelines.

7. The two-stage drying, preheating and incinerating system for high-moisture gasified ash of claim 1, wherein: the microwave drying adjusting component (16) comprises a bottom mounting bracket (161), a microwave generator (162) is arranged at the top of the bottom mounting bracket (161), three groups of microwave generating pipes (164) are respectively communicated with the side ends of the microwave generator (162), a guide (163) is arranged at the outer part of the side ends of the microwave generating pipes (164), the side ends of the microwave generating pipes (164) are sequentially communicated with the surfaces of a first drying treatment tank (11), a second drying treatment tank (14) and a third drying treatment tank, and an adjusting valve (165) is arranged at the outer periphery of the microwave generating pipes (164).

8. The two-stage drying, preheating and incinerating system for high-moisture gasified ash of claim 1, wherein: the transmission assembly (10) comprises a transmission motor (101), a first driving gear (102) is connected and arranged at the bottom output end of the transmission motor (101), a toothed belt (104) is connected with the tooth angle end of the first driving gear (102) in a meshed mode, a second driving gear (103) is connected with the inner side end of the toothed belt (104) in a meshed mode, and a speed regulator (105) is arranged at the bottom axis end of the second driving gear (103).

9. The two-stage drying, preheating and incinerating system for high-moisture gasified ash of claim 1, wherein: the side wall surface of steam collection jar (13) communicates there is heat transfer pipe (21), the side end installation of heat transfer pipe (21) sets up choke valve (22), the bottom intercommunication of heat transfer pipe (21) has heat pump (20), the side end intercommunication of heat pump (20) has trachea (19), the side end intercommunication of trachea (19) has heat collection room (6), the top of heat collection room (6) and the bottom intercommunication of incineration boiler (5).

10. The two-stage drying, preheating and incinerating system for high-moisture gasified ash of claim 1, wherein: the side end installation of burning boiler (5) sets up air current director (3), the side end intercommunication of air current director (3) has oxygen suppliment fan (4), the top installation of burning boiler (5) sets up air supply board pipe (2), install on the lateral wall surface of first drying treatment jar (11) and set up PLC controller (23).