CN105645714A - Device and method for treating sludge through desiccation and carbonization combined method by utilizing steam of thermal power plant - Google Patents
Device and method for treating sludge through desiccation and carbonization combined method by utilizing steam of thermal power plant Download PDFInfo
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- CN105645714A CN105645714A CN201511029742.8A CN201511029742A CN105645714A CN 105645714 A CN105645714 A CN 105645714A CN 201511029742 A CN201511029742 A CN 201511029742A CN 105645714 A CN105645714 A CN 105645714A
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- mud
- sludge
- mummification
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
- C10B57/10—Drying
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/14—Gaseous waste or fumes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treatment Of Sludge (AREA)
- Combustion & Propulsion (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a device and a method for treating sludge through a desiccation and carbonization combined method by utilizing steam of a thermal power plant. The device comprises a sludge storage device, a sludge desiccation device, a desiccation and condensation device, a sludge carbonization device, a slag cooling device, combustion devices, a waste heat recycling device and a flue gas purifying device. According to the device and the method for treating the sludge through the desiccation and carbonization combined method by utilizing the steam of the thermal power plant, disclosed by the invention, high-temperature high-pressure steam of the thermal power plant is utilized, and the sludge is desiccated through an indirect heat exchange and desiccation device; on one hand, the source of the steam of the thermal power plant is stable and reliable; on the other hand, through the scale advantage of the thermal power plant, the utilization efficiency of an energy source is greatly increased, and the treating cost is reduced. In addition, the sludge carbonized amount can be regulated, and one part of the desiccated sludge can be land-filled or can be mixed in a boiler of the thermal power plant for being combusted, so that on one hand, odor gas generated by the sludge desiccation device can be combusted by utilizing a carbonized gas combustion device, and the odor gas is prevented from spilling over; on the other hand, by reducing carbonization devices, the investment cost and the operating cost of equipment can be saved.
Description
Technical field
The invention belongs to technical field of sludge treatment, relate to a kind of process device and method that mud is done, carbonization combines utilizing steam power plant's steam.
Background technology
Owing to mud containing large quantity of moisture, adopt mummification charring system generally cannot realize thermal balance. Existing sludge drying carbonization facture mostly is to be directly added into supplementary energy (such as natural gas, heavy oil etc.) in systems or mix the organic solid waste of other high heating value in mud carrys out additional heat.
It is directly added into supplementary energy in systems simple and convenient, and energy source type can be selected flexibly according to the practical situation of project location, but relatively costly, have a strong impact on project economics. And the method for mixing the organic solid waste of high heating value in mud is no doubt feasible equally flexibly, but the collection of organic solid waste, pulverizing and interpolation have certain difficulty, easily cause the risk of project operation on the one hand, also bring very big undulatory property to cost on the other hand.
Summary of the invention
It is an object of the invention to for the deficiencies in the prior art, it is provided that a kind of process device that mud is done, carbonization combines utilizing steam power plant's steam.
Apparatus of the present invention include mud storage device, mud drying device, mummification condensing unit, sludge carbonization device, cold slag device, burner, waste-heat recovery device, smoke eliminator;
The mummification line discharging opening of mud storage device and the charging aperture of the first mud drying device connect, the heat source water steam inlet of the first mud drying device fetches self-heating Water of Power Plant steam storage apparatus, the heat source water steam (vapor) outlet of the first mud drying device connects thermal power plant boiler circulating water intake, through the first mud drying device, the mud after mummification is transported outward, mix burning or landfill as steam power plant's supplementary energy;
The carbonization line discharging opening of mud storage device and the charging aperture of the second mud drying device connect, the solid material outlet of the second mud drying device is connected with the charging aperture of sludge carbonization device, the carbonized gas outlet of sludge carbonization device is connected with the carbonized gas import of burner, the solid material outlet of sludge carbonization device is connected with the charging aperture of cold slag device, and cold slag device stores recycling after being cooled down by charcoal;The exhanst gas outlet of burner is connected with the gas approach of sludge carbonization device, the exhanst gas outlet of sludge carbonization device is connected with the gas approach of waste-heat recovery device, flue gas is made to produce water vapour, the offgas outlet cigarette receiving air purifying apparatus of waste-heat recovery device with water heat exchange; The heat source water steam (vapor) outlet of the second mud drying device is connected with the water vapour import of waste-heat recovery device, and the steam outlet of waste-heat recovery device and the heat source water steam inlet of the second mud drying device connect;
The steam outlet containing foul smell of the first mud drying device and the second mud drying device connects mummification condensing unit, and the gas outlet of mummification condensing unit is connected with the combustion-supporting gas import of burner.
It is a further object to provide the sludge drying utilizing steam power plant's steam utilizing said apparatus and processing method that carbonization combines.
The inventive method is to utilize the high-temperature steam dewatered sludge of steam power plant, is divided into mummification line and carbonization line to process in the wet mud that moisture content is more than 80% of storage in mud storage device, the sludge quantity scalable on two lines road:
(1) mummification line: wet mud is sent into the first mud drying device and carries out mummification, obtains the mud that moisture content is 40%, and wherein needed for the first mud drying device mummification, thermal source is the water vapour from steam power plant; Mud after mummification is transported to steam power plant and mixes burning or outward transport landfill as supplementary energy; First mud drying device is sent to thermal power plant boiler what the wet mud of mummification produced simultaneously without foul smell water vapour;
(2) carbonization line: wet mud is sent into the second mud desiccation apparatus and carries out mummification, obtaining moisture content is 15-20% mud; By the mud after mummification through sludge carbonization device carbonization, produce high-temperature biological charcoal and carbonized gas; Wherein charcoal stores recycling after being cooled down by cold slag device, carbonized gas sends into burning in burner, the flue gas produced is introduced into sludge carbonization device heating retort, then through waste-heat recovery device, making it produce water vapour with water heat exchange, water vapour here provides mummification energy for the second mud desiccation apparatus; Water vapour after heat exchange is sent waste-heat recovery device back to and is recycled; Flue gas becomes tail gas by after waste-heat recovery device, and tail gas is qualified discharge after smoke eliminator;
The burner burning deodorization that on mummification line, on the first mud drying device and carbonization line, the mud of the second mud desiccation apparatus leads on Article 2 mummification line after being dried all being dewatered containing foul smell water vapour of generation by mummification condensing unit.
Beneficial effects of the present invention:
The present invention utilizes the high temperature and high pressure steam of steam power plant, by indirect heat exchange desiccation apparatus dewatered sludge. Steam power plant's steam source is reliable and stable on the one hand, on the other hand by the advantage of scale of steam power plant, greatly improves the utilization ratio of the energy and reduces processing cost. Additionally, this technique can also adjust sludge carbonization amount, the Sludge landfill after a part of mummification or mix burning at thermal power plant boiler, carbonized gas burner can be utilized to burn the foul smell produced by desiccation apparatus so on the one hand, it is to avoid foul smell is excessive; Equipment investment cost and operating cost can be saved on the other hand by minimizing carbonizing apparatus. The present invention can flexible dewatered sludge amount and carbonization sludge quantity ratio, it is achieved the technique perfect laminating to item boundaries condition, reaches optimized treatment effect and processing cost.
The present invention realizes mummification and carbonization is each independent, the process technique worked in coordination again, is namely filled by sludge drying on the one hand or steam power plant mixes burning reduction and processes cost of disposal, the foul smell produced by carbonized gas burning and drying on the other hand.
The Treatment of Sludge object that the present invention is directed to is extensive, for instance 1. life, industrial sludge process; 2. hazardous waste, medical waste, kitchen, biomass garbage process and soil remediation; 3. other organic solid waste processes and disposes.
Accompanying drawing explanation
Fig. 1 is the process chart of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further analyzed.
Apparatus of the present invention include mud storage device, mud drying device, mummification condensing unit, sludge carbonization device, cold slag device, burner, waste-heat recovery device, smoke eliminator;
The mummification line discharging opening of mud storage device and the charging aperture of the first mud drying device connect, the heat source water steam inlet of the first mud drying device fetches self-heating Water of Power Plant steam storage apparatus, the heat source water steam (vapor) outlet of the first mud drying device connects thermal power plant boiler circulating water intake, through the first mud drying device, the mud after mummification is transported outward, mix burning or landfill as steam power plant's supplementary energy;
The carbonization line discharging opening of mud storage device and the charging aperture of the second mud drying device connect, the solid material outlet of the second mud drying device is connected with the charging aperture of sludge carbonization device, the carbonized gas outlet of sludge carbonization device is connected with the carbonized gas import of burner, the solid material outlet of sludge carbonization device is connected with the charging aperture of cold slag device, and cold slag device stores recycling after being cooled down by charcoal; The exhanst gas outlet of burner is connected with the gas approach of sludge carbonization device, the exhanst gas outlet of sludge carbonization device is connected with the gas approach of waste-heat recovery device, flue gas is made to produce water vapour, the offgas outlet cigarette receiving air purifying apparatus of waste-heat recovery device with water heat exchange; The heat source water steam (vapor) outlet of the second mud drying device is connected with the water vapour import of waste-heat recovery device, and the steam outlet of waste-heat recovery device and the heat source water steam inlet of the second mud drying device connect;
The mud of the first mud drying device and the second mud drying device is dried the steam outlet containing foul smell of generation and connects mummification condensing unit, and the gas outlet of mummification condensing unit is connected with the combustion-supporting gas import of burner.
Utilize the processing method that the sludge drying utilizing steam power plant's steam of said apparatus and carbonization combine.
As it is shown in figure 1, the inventive method is to utilize the high-temperature steam dewatered sludge of steam power plant, it is divided into mummification line and carbonization line to process in the wet mud that moisture content is more than 80% of storage in mud storage device, the sludge quantity scalable on two lines road:
(1) mummification line: wet mud is sent into the first mud drying device and carries out mummification, obtains the mud that moisture content is 40%, and wherein needed for the first mud drying device mummification, thermal source is the water vapour from steam power plant; Mud after mummification is transported to steam power plant and mixes burning or outward transport landfill as supplementary energy; What the first mud drying device produced while the wet mud of mummification is sent to from steam power plant's water vapour storage device without foul smell water vapour;
(2) carbonization line: wet mud is sent into the second mud desiccation apparatus and carries out mummification, obtaining moisture content is 15-20% mud; By the mud after mummification through sludge carbonization device carbonization, produce high-temperature biological charcoal and carbonized gas; Wherein charcoal stores recycling after being cooled down by cold slag device, carbonized gas sends into burning in burner, the flue gas produced is introduced into the second sludge carbonization device heating retort, then through waste-heat recovery device, making it produce water vapour with water heat exchange, water vapour here provides mummification energy for the second mud desiccation apparatus; Water vapour after heat exchange is sent waste-heat recovery device back to and is recycled; Flue gas becomes tail gas by after waste-heat recovery device, and tail gas is qualified discharge after smoke eliminator;
The burner that the water vapour containing foul smell that on mummification line, on the first mud drying device and carbonization line, the second mud desiccation apparatus produces leads on Article 2 mummification line after all dewatering by mummification condensing unit burns deodorization.
Above-described embodiment is not the restriction for the present invention, and the present invention is not limited only to above-described embodiment, as long as meeting application claims, belongs to protection scope of the present invention.
Claims (2)
1. utilize the process device that mud is done, carbonization combines of steam power plant's steam, it is characterised in that include mud storage device, mud drying device, mummification condensing unit, sludge carbonization device, cold slag device, burner, waste-heat recovery device, smoke eliminator;
The mummification line discharging opening of mud storage device and the charging aperture of the first mud drying device connect, the heat source water steam inlet of the first mud drying device fetches self-heating Water of Power Plant steam storage apparatus, the heat source water steam (vapor) outlet of the first mud drying device connects thermal power plant boiler circulating water intake, through the first mud drying device, the mud after mummification is transported outward, mix burning or landfill as steam power plant's supplementary energy;
The carbonization line discharging opening of mud storage device and the charging aperture of the second mud drying device connect, the solid material outlet of the second mud drying device is connected with the charging aperture of sludge carbonization device, the carbonized gas outlet of sludge carbonization device is connected with the carbonized gas import of burner, the solid material outlet of sludge carbonization device is connected with the charging aperture of cold slag device, and cold slag device stores recycling after being cooled down by charcoal; The exhanst gas outlet of burner is connected with the gas approach of sludge carbonization device, the exhanst gas outlet of sludge carbonization device is connected with the gas approach of waste-heat recovery device, flue gas is made to produce water vapour, the offgas outlet cigarette receiving air purifying apparatus of waste-heat recovery device with water heat exchange; The heat source water steam (vapor) outlet of the second mud drying device is connected with the water vapour import of waste-heat recovery device, and the steam outlet of waste-heat recovery device and the heat source water steam inlet of the second mud drying device connect;
The steam outlet containing foul smell of the first mud drying device and the second mud drying device connects mummification condensing unit, and the gas outlet of mummification condensing unit is connected with the combustion-supporting gas import of burner.
2. utilize the processing method that the sludge drying of steam power plant's steam and carbonization combine, it is characterized in that utilizing the high-temperature steam dewatered sludge of steam power plant, it is divided into mummification line and carbonization line to process in the wet mud that moisture content is more than 80% of storage in mud storage device, the sludge quantity scalable on two lines road:
(1) mummification line: wet mud is sent into the first mud drying device and carries out mummification, obtains the mud that moisture content is 40%, and wherein needed for the first mud drying device mummification, thermal source is the high-temperature water vapor from steam power plant; Water vapour after heat exchange is returned to thermal power plant boiler by the first mud drying device, the mud after mummification is transported to steam power plant and mixes burning or outward transport landfill as supplementary energy;
(2) carbonization line: wet mud is sent into the second mud desiccation apparatus and carries out mummification, obtaining moisture content is 15-20% mud; By the mud after mummification through sludge carbonization device carbonization, produce high-temperature biological charcoal and carbonized gas; Wherein charcoal stores recycling after being cooled down by cold slag device, carbonized gas sends into burning in burner, the flue gas produced is introduced into sludge carbonization device heating retort, then through waste-heat recovery device, making it produce water vapour with water heat exchange, water vapour here provides mummification energy for the second mud desiccation apparatus; Water vapour after heat exchange is sent waste-heat recovery device back to and is recycled; Flue gas becomes tail gas by after waste-heat recovery device, and tail gas is qualified discharge after smoke eliminator;
The burner burning deodorization that on mummification line, on the first mud drying device and carbonization line, the mud of the second mud desiccation apparatus leads on Article 2 mummification line after being dried all being dewatered containing foul smell water vapour of generation by mummification condensing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511029742.8A CN105645714B (en) | 2015-12-31 | 2015-12-31 | Device and method for treating sludge through desiccation and carbonization combined method by utilizing steam of thermal power plant |
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| CN201511029742.8A CN105645714B (en) | 2015-12-31 | 2015-12-31 | Device and method for treating sludge through desiccation and carbonization combined method by utilizing steam of thermal power plant |
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| CN105645714A true CN105645714A (en) | 2016-06-08 |
| CN105645714B CN105645714B (en) | 2017-02-22 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106380057A (en) * | 2016-11-07 | 2017-02-08 | 西安航天源动力工程有限公司 | Low-energy-consumption and low-emission sludge drying and carbonization device |
| CN106479527A (en) * | 2016-11-15 | 2017-03-08 | 东南大学 | One kind carries out rubbish charcoal processing system using straw burning heat release |
| CN107337335A (en) * | 2017-08-02 | 2017-11-10 | 上海净泥新能源科技有限公司 | A kind of sludge drying and the equipment and technique of charing |
| CN107351239A (en) * | 2017-08-26 | 2017-11-17 | 汕头市宏基混凝土构件有限公司 | A kind of method using steam power plant's steam production PHC pile tubes |
| CN108467174A (en) * | 2018-05-30 | 2018-08-31 | 江苏澄乾环保工程有限公司 | A kind of sludge carbonization method and device that sludge pyrolysis gas directly burns |
| CN110304804A (en) * | 2019-02-18 | 2019-10-08 | 联合瑞升（北京）科技有限公司 | A kind of sludge hot is quenched and desiccation is carbonized energy conserving system |
| CN110358552A (en) * | 2019-08-16 | 2019-10-22 | 江苏鼎新环保科技有限公司 | A kind of charing process system of oily sludge |
| CN110482819A (en) * | 2019-09-09 | 2019-11-22 | 湖南馨湘碧浪环保科技有限公司 | Continuous sludge control oxygen low temperature pyrolyzer carbonization integrated device |
| CN114477709A (en) * | 2022-02-25 | 2022-05-13 | 江苏碧诺环保科技有限公司 | Heavy metal sludge carbonization system not prone to blockage |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106380057A (en) * | 2016-11-07 | 2017-02-08 | 西安航天源动力工程有限公司 | Low-energy-consumption and low-emission sludge drying and carbonization device |
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| CN106479527A (en) * | 2016-11-15 | 2017-03-08 | 东南大学 | One kind carries out rubbish charcoal processing system using straw burning heat release |
| CN107337335A (en) * | 2017-08-02 | 2017-11-10 | 上海净泥新能源科技有限公司 | A kind of sludge drying and the equipment and technique of charing |
| CN107351239A (en) * | 2017-08-26 | 2017-11-17 | 汕头市宏基混凝土构件有限公司 | A kind of method using steam power plant's steam production PHC pile tubes |
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| CN110304804A (en) * | 2019-02-18 | 2019-10-08 | 联合瑞升（北京）科技有限公司 | A kind of sludge hot is quenched and desiccation is carbonized energy conserving system |
| CN110358552A (en) * | 2019-08-16 | 2019-10-22 | 江苏鼎新环保科技有限公司 | A kind of charing process system of oily sludge |
| CN110482819B (en) * | 2019-09-09 | 2021-06-15 | 湖南馨湘碧浪环保科技有限公司 | Continuous sludge oxygen-control low-temperature cracking and carbonizing integrated device |
| CN110482819A (en) * | 2019-09-09 | 2019-11-22 | 湖南馨湘碧浪环保科技有限公司 | Continuous sludge control oxygen low temperature pyrolyzer carbonization integrated device |
| CN114477709A (en) * | 2022-02-25 | 2022-05-13 | 江苏碧诺环保科技有限公司 | Heavy metal sludge carbonization system not prone to blockage |
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