CN110902310A - Mining wireless conveyor protection centralized control system - Google Patents
Mining wireless conveyor protection centralized control system Download PDFInfo
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- CN110902310A CN110902310A CN201911126406.3A CN201911126406A CN110902310A CN 110902310 A CN110902310 A CN 110902310A CN 201911126406 A CN201911126406 A CN 201911126406A CN 110902310 A CN110902310 A CN 110902310A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/02—Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load carriers, e.g. for interrupting the drive in the event of overheating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0266—Control or detection relating to the load carrier(s)
- B65G2203/0275—Damage on the load carrier
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0266—Control or detection relating to the load carrier(s)
- B65G2203/0283—Position of the load carrier
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
- B65G2203/042—Sensors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
- B65G2207/40—Safety features of loads, equipment or persons
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- Control Of Conveyors (AREA)
Abstract
Mining wireless conveyer protects centralized control system, it includes host computer, speedtransmitter, temperature sensor, smoke transducer, coal piling sensor, off tracking sensor, scram sensor, tear sensor, the host computer comprises flame proof case and this ampere of case two parts, and this ampere of case is installed in flame proof case lower part and is fixed an organic whole with the flame proof case, and its internally mounted has main control board, display screen and speaker, be provided with integrated protection circuit, control circuit and language alarm circuit on the main control board, speedtransmitter, temperature sensor, smoke transducer, coal piling sensor, off tracking sensor, scram sensor, tear sensor all carry out wireless connection with the wireless module on the main control board. The invention has the function of multi-station on-line, can start and stop vehicles along the coal flow, and also can start or stop vehicles against the coal flow, each sensor adopts the wireless transmission technology to transmit signals, thereby being convenient for installation and maintenance, saving a large amount of maintenance time for operators, and being capable of rapidly troubleshooting.
Description
Technical Field
The invention relates to the technical field of mining conveyors, in particular to a mining wireless conveyor protection centralized control system.
Background
In the existing coal mine electromechanical equipment, various sensors are connected to a belt conveyor protection device, the sensors are connected by various cables, the cables for connecting various sensors underground are criss-cross and are as dense as a spider web, the underground environment of a coal mine is severe, the equipment is heavy, great inconvenience is brought to overhaul and fault finding, and many unsafe factors exist. In order to solve the problems and eliminate potential safety hazards, various sensors developed by our company all adopt a wireless transmission technology, so that the problem can be solved, convenience is brought to maintenance and installation, the novel coal mine belt conveyor protection device serving as a subsystem in the later coal mine automatic construction is provided, a foundation is laid for coal mine automation and informatization in China, and the blank of wireless sensors of the belt conveyor protection device in China is filled.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a mining wireless conveyor protection centralized control system which has a multi-station online function, can start and stop vehicles along a coal flow and also can start or stop vehicles against the coal flow, and each sensor adopts a wireless transmission technology to transmit signals, so that the system is convenient to install and maintain, saves a large amount of maintenance time for operators and can quickly troubleshoot faults.
Therefore, the invention adopts the following specific technical scheme:
mining wireless conveyer protects centralized control system, it includes host computer, speedtransmitter, temperature sensor, smoke transducer, coal piling sensor, off tracking sensor, scram sensor, tear sensor, the host computer comprises flame proof case and this ampere of case two parts, and this ampere of case is installed in flame proof case lower part and is fixed an organic whole with the flame proof case, and its internally mounted has main control board, display screen and speaker, be provided with integrated protection circuit, control circuit and language alarm circuit on the main control board, speedtransmitter, temperature sensor, smoke transducer, coal piling sensor, off tracking sensor, scram sensor, tear sensor all carry out wireless connection with the wireless module on the main control board.
Furthermore, the sensor communicates with a host machine by adopting 433 MHz high-frequency radio waves, and a control chip of the host machine adopts a 32-bit singlechip as a main controller.
Further, the main machine is hung or arranged near the machine head of the belt conveyor.
Furthermore, a probe of the temperature sensor is arranged near the driving roller of the belt conveyor, and the temperature probe is tightly attached to the outer wall of the main roller.
Furthermore, the probe of the temperature sensor is 10-15mm away from the contact surface of the driving roller of the belt conveyor and the belt.
Furthermore, the smoke sensor is arranged right above the belt conveyor at a position 10-15m below the driving roller of the belt conveyor head.
Furthermore, a coal piling protection contact of the coal piling sensor is hung in front of the unloading roller, and the hanging height of the protection contact is not higher than the lower edge of the unloading roller.
Furthermore, the deviation sensors are used in pairs, and the machine head and the machine tail are respectively provided with one group.
Furthermore, the emergency stop sensors are arranged in every 100m position in the conveyor roadway.
Further, the tearing sensor is arranged at a position 10-15m below the coal falling power of the adhesive tape in the direction of the machine head.
The invention has the beneficial effects that:
1) the protection device has a plurality of on-line functions, and can start and stop the vehicle along the coal flow or against the coal flow by setting.
2) The device has the biggest characteristic that each sensor adopts a wireless transmission technology to transmit signals, the installation and the maintenance are convenient, only the related sensor needs to be fixed on a corresponding position, then a power switch of a battery is turned on, and various signal cables do not need to be connected. The method saves expensive mining cables, improves economic benefits, does not need to search for faults along the cables of the sensors during maintenance, saves a large amount of maintenance time for operators, and can quickly find out faults.
3) The online state of each sensor can be checked in real time on a human-computer interface, and the types and the number of the sensors of an installation team can be conveniently known.
4) The wireless sensor is powered by a low-voltage battery, normally works in a low-power consumption state, the power consumption is extremely low, and the battery can work for more than one year on line after being replaced.
5) The wireless temperature sensor and the wireless speed sensor can transmit the running state parameters of the belt conveyor to the host in real time, and can display the roller temperature of the belt conveyor and the running speed of the belt conveyor on a display screen of the host in real time, so that maintenance personnel can know the running state of the belt conveyor in real time.
6) The belt feeder breaks down, and after the wireless sensor reported to the police, can show the warning type on the display screen of host computer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a host operating status display menu of the present invention;
FIG. 3 is a diagram illustrating a host configuration state according to the present invention;
FIG. 4 is a diagram illustrating a host selected delay setting state according to the present invention;
FIG. 5 is a diagram illustrating a host selection parameter setting state according to the present invention;
FIG. 6 is a diagram illustrating a host selection operation state of the present invention;
FIG. 7 is a diagram illustrating the host computer selected time-to-time communication;
FIG. 8 is a display diagram of a host selection fault record of the present invention;
FIG. 9 is a diagram showing the parking status of the host according to the present invention.
Detailed Description
For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.
Referring to fig. 1-9, a mining wireless conveyor protection centralized control system is provided according to an embodiment of the present invention.
1. Overall structure and its working principle
1.1 general Structure
The main machine is composed of two parts of an explosion-proof box and an intrinsic safety box, a power transformer and an intrinsic safety power circuit board are arranged in the explosion-proof box, the box body is provided with four inlet and outlet ports, the left wiring horn mouth is an alternating current 127V power input port and an execution relay contact output port, the right horn mouth is a relay contact output port, and a control outlet port for controlling the over-temperature water sprinkling electromagnetic valve and the double-machine dragging control 2 nd motor can be controlled.
The intrinsic safety box is arranged at the lower part of the explosion-proof box and is fixed with the explosion-proof box into a whole, a main control panel, a display screen and a loudspeaker are arranged in the intrinsic safety box, and 1 operation indicator lamp is arranged on a panel of the intrinsic safety box and used for displaying whether the host machine operates or not. Still be equipped with button 6 on the panel, 2 little buttons and four big buttons, the first little button that has started on a left side is the stop button, and the 2 nd little button is the start button, and the 1 st big button is the affirmation button, and the 2 nd is backward button, and the 3 rd is for pressing the button forward, and the 4 th is for setting up the button, is equipped with display system running state's status indicator below the panel display screen.
1.2 host function
The main machine has the functions of starting delay, language early warning, fault parking protection, fault display and fault voice alarm.
The various functions and protection characteristics are as follows:
(1) speed protection: when the belt conveyor slips or has overspeed fault in the operation process, the speed protection action is carried out, the belt stops the operation, and the low-speed fault alarm signal delay can be set through a key on a panel, and is generally set to be about 3-10S.
(2) Coal piling protection: when the sensor guide rod deviates from the center by 20 +/-3 degrees, the coal piling protection is realized by delaying for 1-3 seconds.
(3) When the guide rod of the deviation sensor deviates 30 +/-3 degrees from the central line, the deviation fault protection is realized after delaying for 3-10 seconds.
(4) Smoke protection: when smoke is generated, the smoke sensor sends the signal to the console, and smoke protection is immediately realized.
(5) Temperature protection: when the monitoring point temperature surpassed temperature sensor's settlement temperature, this device realizes temperature fault protection and watering cooling at once. The temperature protection action value may be set to 42 ℃.
(6) Emergency stop protection along the line: when a certain emergency stop switch along the line is switched on, the device immediately realizes the stop protection function.
(7) And (3) tearing protection: the belt is longitudinally torn to form coal blocks larger than or equal to 12g/cm, the coal blocks fall on the belt, the output end of the sensor outputs a '0' signal, the operation of the belt conveyor is stopped, and the belt tearing protection is realized.
(8) All the faults have corresponding indications on the desk and send out voice alarm. The time for sending out the corresponding voice alarm is 0-10 seconds.
1.3, the working principle is as follows:
host power strip circuit principle:
the input voltage is generally input with 127V alternating current voltage through No. 8 and No. 9 terminals in the magnetic switch, the alternating current voltage is converted by a transformer, then the alternating current voltage is sent to a two-stage voltage stabilization and overcurrent and overvoltage protection circuit after rectification and filtration, a DC12V intrinsic safety power supply is output after two-stage voltage stabilization, and the maximum setting value of the intrinsic safety power supply overcurrent protection is 1.2A.
The power panel is provided with two execution relays, wherein one execution relay can control the starting and stopping of the motor, and the other execution relay can control the electromagnetic valve to realize overtemperature water sprinkling.
The main machine control circuit working principle is as follows:
it is composed of comprehensive protection circuit, control circuit and speech alarm circuit.
Signals of each sensor are sent to a host through respective wireless modules, the sensors are communicated with the host through 433 MHz high-frequency radio waves, a control chip of the host adopts a 32-bit singlechip as a main controller, the host detects the signals, and a stop signal is sent to an execution relay of a power panel through a CPU chip of a main control panel to stop the conveyor. Meanwhile, an alarm signal is output to a language alarm circuit and is sent out through a public amplifier and a loudspeaker: the voices such as 'belt slipping, please remove fault', 'belt deviation, please remove fault' and the like are displayed on the display screen.
Besides realizing the control of the comprehensive protection fault stop, the main control panel can control the execution relay of the power panel by the start and stop buttons on the panel to start and stop the conveyor.
The main control circuit sends out control and alarm signals and fault signals to the display screen through the connecting line for fault display.
The working principle of the host display screen is as follows:
the display signals of the display screen are sent by the main control circuit. And the connection fault is greatly reduced by adopting soft connection between the main board and the display. The signals sent by the main control unit display various state signals through the display screen.
The working principle of the sensor is as follows:
1) speed sensor circuit operating principle
The speed sensor is arranged below a conveyor belt, the belt can drive a roller of the speed sensor to rotate when running, when the roller rotates, a magnet in rolling can receive a signal from the magnet for a reed pipe element in a speed sensor circuit board, the signal is sent to an amplifying circuit for amplification and then sent to a converting and shaping circuit for processing, and then a pulse signal with a fixed pulse width is output, after the pulse signal is sent to a computer by a main control board of a host computer through a wireless module, the relation between the speed of the pulse signal and a set alarm value is judged, the host computer is not alarmed to be shut down between 75% and 110%, and when the speed of the pulse signal is lower than 75% of the set value or is larger than 110% of the set value, the host computer is shut down and alarms.
2) Working principle of temperature sensor circuit
The temperature-sensitive element of the temperature sensor adopts 18B20 which is a sensing element linearly changing with the temperature, the temperature-sensitive element sends a signal changing with the temperature to the host computer, and the signal is compared with the alarm value set by the host computer through calculation, and when the temperature-sensitive element is larger than the alarm value set by the host computer, the host computer is shut down and alarms. Because the temperature sensor can report a signal of 85 ℃ after being electrified and then report a normal induction temperature value, the temperature sensor needs to work before the host machine is powered on when in use.
3) Working principle of smoke sensor circuit
When smoke enters the smoke sensing element, the smoke signal is converted into an electric signal, the electric signal is sent to the detection circuit, the detected action signal is sent to the control circuit, an alarm signal is sent out by the control circuit and is sent to the host computer by the wireless module, and the host computer is stopped and alarms.
4) Working principle of coal piling, deviation, tearing and sudden stop sensor circuit
Because the four sensors are all switching value sensors, when the sensors receive alarm signals, the alarm signals are transmitted to the host through the wireless modules of the sensors, so that the host is stopped and alarms.
2. Installation and debugging
2.1 mounting conditions and requirements
A plurality of four-core power cables, a plurality of three-core signal cables, and tools such as wrenches and screwdrivers for disassembling and assembling screws are needed.
2.2, installation
The wireless belt conveyor protection device is installed by paying attention to ensure that the antenna of the main machine and the antenna of the sensor are upward and on the same straight line as much as possible after the wireless belt conveyor protection device is installed, so that signal transmission is facilitated.
2.2.1 installation of host
The main machine is hung or arranged near the belt conveyor head, and the connection between the main machine and the wireless sensor is not needed, and only the connection between the main machine and the control switch and the connection between the main machine and the electromagnetic valve are needed. The sensor is placed at the specified position of each mine, and the lithium battery power supply in the sensor is reset.
2.2.2 mounting of speed sensor
Firstly, a magnetic steel iron sheet is arranged on a small auxiliary rolling cylinder of a belt conveyor head and is tightly screwed. Then, when the speed sensor is assembled and installed in a small auxiliary rolling cylinder room of a belt conveyor head, attention needs to be paid to ensure that the track of the magnetic steel sheet during rolling rotation passes through a reed switch (namely the middle of the speed sensor) on the speed sensor, and the speed sensor is ensured to be as close as possible to the magnetic steel sheet (preferably not to exceed 20 mm) under the condition of not influencing the operation of the small auxiliary rolling cylinder of the belt conveyor.
2.2.3 mounting of temperature sensor
Firstly, a probe of a temperature sensor is arranged near an active roller of a belt conveyor, and the temperature probe is fixed to be tightly attached to the outer wall of the active roller and 10-15mm away from the contact surface of the active roller and a belt of the belt conveyor.
2.2.4 mounting of Smoke Sensors
The smoke sensor is arranged right above the adhesive tape machine at the position 10-15m away from the leeward side of the driving roller of the machine head of the belt conveyor, the smoke sensor is hung vertically, the distance between the smoke sensor and the top plate is not more than 300mm, and the smoke sensor is close to the roller of the machine head when the conveyor is driven by a plurality of rollers.
2.2.5 coal pile sensor mounting
At the transshipment lap joint of the two adhesive tapes, the coal piling protection contact is hung in front of the unloading roller, the hanging height of the protection contact is not higher than the lower edge of the unloading roller, the horizontal position is adjusted according to the actual field, the condition of the water spraying device is considered during installation, and the coal piling protection is prevented from no action. The coal piling protection control line is vertically led down from a roadway top plate, a sensor contact is vertically hung and reliably fixed, and the sensor contact is strictly prevented from swinging along with wind flow so as not to cause no action of protection. When the iron remover is arranged on the head of the adhesive tape or other facilities do not meet the conditions, a special bracket is required to be processed for installation, so that the sensor is ensured to be fixed firmly.
2.2.6 installation of off-tracking sensor
The deviation sensors of the belt conveyor are used in pairs, a group of sensors are respectively arranged at the head and the tail of the belt conveyor, when the belt conveyor has a slope change, a group of sensors is arranged at a slope change position, and the deviation sensors are fixed on a longitudinal beam of the belt conveyor by using special brackets to protect the deviation condition of the belt on the belt conveyor. The mounting distance is about 20mm beyond the edge of the idler (e.g., more than 70mm for a belt conveyor using triple rollers). Before the deviation sensor is used, an address bit switch (4-bit switch, which can represent 16 addresses at most) of the sensor needs to be pulled so as to display an address code of a fault sensor when the fault occurs. The same sensor in a belt conveyor protection device cannot have the same address code, so that the problem that a fault address is not distinguished, the maintenance time is delayed, and the production is delayed is avoided.
2.2.7 scram sensor mounting
An emergency stop switch is arranged in a tunnel of the conveyor every 100m, the emergency stop switches are arranged at a loading point, a pedestrian bridge head, a machine head and a machine tail, and a switch signal is connected to a control system of the belt conveyor. The emergency stop sensor is arranged on the outer frame of the belt conveyor. The scram sensor also needs to toggle an address bit switch (4-bit switch, which can represent 16 addresses at most) of the sensor before being used, so as to display the address code of the fault sensor when the fault occurs. The same sensor in a belt conveyor protection device cannot have the same address code, so that the problem that a fault address is not distinguished, the maintenance time is delayed, and the production is delayed is avoided.
2.2.8 tear sensor mounting
The main transportation adhesive tape is arranged at a position of 10-15m in the head direction (when the adhesive tape machine is driven by the head) below the coal falling power of the adhesive tape, and is protected from being torn. The tearing protection is arranged between an upper layer of adhesive tape and a lower layer of adhesive tape of the adhesive tape machine, a standard bracket is processed for the tearing protection in a piezoelectric type or a traction steel wire rope type, and the tearing protection is fixed on a longitudinal beam of the adhesive tape machine and is close to the direction of the upper layer of adhesive tape.
2.3 debugging
1) Debugging the host:
(1) start and stop control debugging
And switching on a power supply, and starting and stopping experiments are carried out by using start and stop buttons on a panel when the belt conveyor protection device can be started.
(2) And (3) debugging the performance of the protection circuit:
when the sensors simulate alarm signals respectively, the main machine respectively sends out language alarm signals of 'slipping of the belt, please remove faults', 'coal piling of the belt, please remove faults', 'over-temperature of the belt, please remove faults' and the like, and the started main machine stops running and is locked. The host computer must press the confirmation key before starting after alarming, otherwise the host computer can not start.
3. Description of the use and operation
3.1. The sensors of the belt conveyor protection device are all wireless sensors. The sensors are placed at prescribed locations in each mine, and a reset power-on button in the sensors is pressed to supply power to the sensors. Before the sensor is installed, firstly, a multimeter is used for detecting the electric quantity of the lithium battery. The voltage of the lithium battery is more than 4.0V, which indicates that the lithium battery has sufficient electric quantity, and the sensor can be directly reset for use; the voltage of the lithium battery is below 3.5V, which indicates that the lithium battery has insufficient electricity, and the lithium battery can be replaced or used after being charged.
Because the temperature sensor can report a signal of 85 degrees after being electrified and then report a normal induction temperature value, the temperature sensor needs to be powered on before the host computer is powered on to work.
3.2, 6 buttons, 2 small buttons and four buttons are arranged on the panel, and the first small button from the left is a stop button which is a button for controlling the main engine to stop; the 2 nd small button is a starting button and is a button for controlling the host to start; the 1 st big button is a confirmation button which is a confirmation button after various parameters of the host are set; the 2 nd big button is a backward button which is a button for controlling to turn down or adjusting the number increase when setting various parameters of the host; the 3 rd big button is a forward button which is used for controlling upturning or adjusting digit reduction when various parameters of the host are set; the 4 th big button is a setting button which is a button for entering a setting menu or entering various parameters of a setting host. And a state indicator lamp for displaying the running state of the system is arranged below the panel display screen.
3. Parameter setting
1) When the host is set in the running state, the host needs to press a setting key to enter a menu interface shown in fig. 2, and then presses forward and backward buttons on the panel to adjust the function which is selected to be set.
2) When the set key is pressed after the main interface is selected, the display screen will appear as shown in fig. 3.
3) When the setting key is pressed again after the delay setting is selected, the picture shown in fig. 4 is entered, the option where the yellow icon is located can select the option which needs to be adjusted through the forward button and the backward button, the yellow icon is changed into purple by pressing the setting button again, so that the parameter adjustment can be carried out, the number is reduced when the yellow icon is moved forward, the number is increased when the yellow icon is moved backward, and the required parameter is adjusted when the confirmation button is pressed after the parameter is adjusted.
4) When the set key is pressed after the parameter setting is selected, the screen shown in fig. 5 is entered. Changing the yellow cursor to purple in the above adjusting mode can adjust the parameters, and pressing the confirm button after the parameters are adjusted.
5) When the set key is pressed after the operation state is selected, the screen shown in fig. 6 is entered. Changing the yellow cursor to purple in the above adjusting mode can adjust the parameters, and pressing the confirm button after the parameters are adjusted.
6) When the set key is pressed after the time communication is selected, the screen shown in fig. 7 is entered. Changing the yellow cursor to purple in the above adjusting mode can adjust the parameters, and pressing the confirm button after the parameters are adjusted.
7) When the set key is pressed after the failure record is selected, the screen shown in fig. 8 is entered. Changing the yellow cursor to purple in the above adjusting mode can adjust the parameters, and pressing the confirm button after the parameters are adjusted.
8) When the host is set in a parking state, and a set key is pressed to enter a menu interface, a first main interface in the menu becomes a sensor, and the number of online wireless sensors is displayed after the sensor enters, as shown in fig. 9.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or modifications, and equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The mining wireless conveyor protection centralized control system is characterized by comprising a host, a speed sensor, a temperature sensor, a smoke sensor, a coal piling sensor, a deviation sensor, an emergency stop sensor and a tearing sensor, wherein the host consists of an explosion-proof box and an intrinsic safety box, the intrinsic safety box is installed at the lower part of the explosion-proof box and is fixed with the explosion-proof box into a whole, a main control board, a display screen and a loudspeaker are installed in the intrinsic safety box, a comprehensive protection circuit, a control circuit and a language alarm circuit are arranged on the main control board, and the speed sensor, the temperature sensor, the smoke sensor, the coal piling sensor, the deviation sensor, the emergency stop sensor and the tearing sensor are all in wireless connection with a wireless module on the main control board.
2. The system of claim 1, wherein the sensor communicates with the host using 433 mhz radio waves, and the host control chip uses a 32-bit single chip as the master controller.
3. The system of claim 1, wherein the main machine is suspended or positioned near a belt conveyor head.
4. The system of claim 1, wherein the probe of the temperature sensor is arranged near the active roller of the belt conveyor, and the temperature probe is tightly attached to the outer wall of the active roller.
5. The system of claim 1, wherein the probes of the temperature sensor are located 10-15mm from the active roller and belt interface of the belt conveyor.
6. The system of claim 1, wherein the smoke sensor is installed right above the belt conveyor at a position 10-15m below the driving roller of the belt conveyor head.
7. The system of claim 1, wherein the coal pile protection contact of the coal pile sensor is hung in front of the unloading roller, and the hanging height of the protection contact is not higher than the lower edge of the unloading roller.
8. The system of claim 1, wherein the deviation sensors are used in pairs, and a group is arranged at the head and the tail of the machine.
9. The system of claim 1, wherein the scram sensors are provided one every 100m in a conveyor lane.
10. The system of claim 1, wherein the tear sensor is positioned 10-15m below the tape coal drop toward the nose.
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| CN201911126406.3A CN110902310A (en) | 2019-11-18 | 2019-11-18 | Mining wireless conveyor protection centralized control system |
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| CN112607361A (en) * | 2020-12-18 | 2021-04-06 | 山东超晟光电科技有限公司 | Comprehensive protection system of optical fiber passive conveyor |
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| CN112607361B (en) * | 2020-12-18 | 2021-07-20 | 山东超晟光电科技有限公司 | Comprehensive protection system of optical fiber passive conveyor |
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