CN210286058U

CN210286058U - Air-supported membrane structure coal bunker system

Info

Publication number: CN210286058U
Application number: CN201920711604.5U
Authority: CN
Inventors: 许贤德; 周长亮
Original assignee: Linfen Wanxinda Coking Co Ltd
Current assignee: Linfen Wanxinda Coking Co Ltd
Priority date: 2019-05-17
Filing date: 2019-05-17
Publication date: 2020-04-10
Anticipated expiration: 2029-05-17

Abstract

The utility model relates to an air-supported membrane structure coal bunker system, which belongs to the technical field of air-supported membrane coal bunkers, and the technical problem solved by the utility model is to provide an air-supported membrane structure coal bunker system, which adopts the technical proposal that; an air-supported membrane structure coal bunker system comprising: the coal blocking system comprises a coal blocking wall, an air film, an airtight door, a power distribution chamber and a control chamber, wherein the air film is anchored at the end face of the coal blocking wall; the control room includes: the system comprises a PLC main control unit, a snow removing unit, a sensor unit, a spraying dust-settling unit, a fire fighting unit, an automatic adjusting ventilation unit and an access door unit, wherein the snow removing unit, the sensor unit, the spraying dust-settling unit, the fire fighting unit, the automatic adjusting ventilation unit and the access door unit are electrically connected with the PLC main control unit, and a power distribution room is used for providing an electric energy source for the whole coal bunker; the device is widely applied to the field of gas film coal bunkers.

Description

Air-supported membrane structure coal bunker system

Technical Field

The utility model belongs to the technical field of the gas film coal bunker, concretely relates to air-supported membrane structure coal bunker system.

Background

The air bearing type coal bunker with membrane structure is a new building structure, the membrane structure is formed by welding and splicing high-strength and flame-retardant PVDF building membrane materials into a sealed shell, the lower edge of the membrane structure is connected with a concrete coal retaining wall for anchoring, an air supply unit matched with the membrane structure raises the internal pressure of the membrane structure to a state slightly higher than the external pressure, the internal and external pressure difference of the membrane structure is equivalent to the air pressure difference from the ground to a 7-storey building, the air bearing type membrane structure utilizes the indoor and outdoor pressure difference to enable the membrane structure to form a stable air supporting structure, the exterior of the membrane structure is restrained by a windproof reinforced steel cable and decomposes the stress of a membrane network, the coal bunker is a semi-steel huge structural body, and the wind resistance and snow load bearing capacity of the coal bunker can meet the requirements of related building specifications.

The membrane structure coal bunker is shaped into a dome structure, so that the wind resistance is reduced, and the snow can slide downwards and be unloaded. The coal yard with the span of 110 meters can realize a single-span structure, has no beam and column inside, has the net height of about 40 meters, has huge space, can arrange raw coal randomly, is suitable for large-scale mechanical equipment and vehicle operation, and has good use function.

The existing air film coal bunker has single function, the comprehensive use performance of the coal bunker is poor, the safety and the practicability in the coal bunker cannot be guaranteed, the air film coal bunker has a great deal of problems in the use process, coal dust is easy to generate in the coal storage process, the gas concentration in the coal bunker is too high due to untimely ventilation and air exchange of coal, a fire disaster is easy to cause, the detection range of a sensor is small, all environmental parameter conditions in the coal bunker cannot be detected, further, the occurrence of accidents such as fire explosion and the like or the health of workers in the coal bunker are greatly damaged, the intelligent degree of opening of the existing access door control is low, and the air film air supplement frequency is high.

Meanwhile, when rainy and snowy weather comes in winter, snow is easily remained on the upper portion of the air film coal bunker, and the snow exists, on one hand, the snow can bear a load on the coal bunker, so that the pressure of the coal bunker is increased, the supporting force of the air film needs to be increased, therefore, the energy consumption of the air film is improved, on the other hand, the snow covers the coal bunker for a long time, pollutants mixed in the snow can corrode the air film, the air film is easily damaged, and further the service performance and the service life of the air film are reduced. Therefore, it is an urgent need to provide a coal bunker system with an air-supported membrane structure.

SUMMERY OF THE UTILITY MODEL

For solving the problem that the existing air film coal bunker has single function, poor practicability and safety and the accumulated snow is difficult to clean, the utility model provides an air bearing type coal bunker system with a film structure.

The utility model discloses the technical scheme who adopts does: an air-supported membrane structure coal bunker system comprising: the coal blocking system comprises a coal blocking wall, an air film, an airtight door, a power distribution chamber and a control chamber, wherein the air film is anchored at the end face of the coal blocking wall; the control room includes: PLC main control unit, snow removing unit, sensor unit, spraying dust fall unit, fire control unit, automatically regulated ventilation unit and access door unit all with PLC main control unit electrical connection, the electricity distribution room is used for providing the electric energy source for whole coal bunker.

The snow removal unit includes: the utility model discloses a gas film, including gas vent, exhaust main pipe, exhaust branch pipe, electric control valve and filter screen, the gas vent sets up the top center department at the gas film, be connected with the exhaust main pipe on the gas vent, the exit that the exhaust main pipe was connected with a plurality of exhaust branch pipes, and is a plurality of exhaust branch pipe evenly distributed is in gas vent outside circumference department, the exit of exhaust branch pipe is the fixed filter screen that is provided with still, all be provided with electric control valve on the exhaust main pipe and the exhaust branch pipe, electric control valve and PLC main control unit electrical connection.

The sensor unit includes: the device comprises a differential pressure sensor, a combustible gas sensor, a dust sensor, a temperature and humidity sensor and a snow thickness sensor, wherein the differential pressure sensor, the combustible gas sensor, the dust sensor, the temperature and humidity sensor and the snow thickness sensor are all electrically connected with a PLC main control unit.

The spray dust settling unit comprises: the dust suppression water pump comprises a water supply pipe, a dust suppression water pump and an atomization nozzle, wherein one end of the water supply pipe is connected with the dust suppression water pump, the other end of the water supply pipe is provided with the atomization nozzle, and the dust suppression water pump is controlled by a PLC main control unit to be started and stopped; the fire-fighting unit is a fire-fighting water cannon or a fire-fighting water tap, the fire-fighting unit is used for controlling fire in the coal bunker, and the automatic adjusting and ventilating unit is used for replacing air in the coal bunker.

The airtight door includes: the vehicle access door and the personnel access safety door are provided with a plurality of doors, the access door unit is an interlocking control device, and the access door unit is used for controlling the opening and closing of the airtight door.

The snow thickness sensor is arranged on the top of the air film and is DC 24V/0-160 mm.

Compared with the prior art, the utility model following beneficial effect has.

The utility model discloses a pair of air-supported membrane structure bunker system, through the sensor unit, spraying dust fall unit, the fire control unit, the use of automatically regulated ventilation unit and access door unit, the sensor can detect bunker everywhere information, and with information transmission to PLC main control unit, PLC main control unit carries out real time monitoring to each the control unit in bunker, make the function of this bunker system comprehensive, the serious and untimely problem of ventilation of dust pollution in the bunker has been solved, access door unit is interlocking control device, the switching of in time control airtight door.

Two, the utility model discloses a snow removing unit, when snow thickness sensor detected the air film top and had snow, the last gas vent of air film was opened, and the gas in the air film outwards exhausts through exhaust branch, and the combustion gas blows off the snow at air film top to the air film bottom, then the artifical snow of remaining in the air film bottom of clearing up, has reduced the heavy burden of snow at the coal bunker top, has still reduced the frequency of damage of air film, has prolonged the life of air film.

Three, the utility model discloses an air-supported membrane structure coal yard has the dead weight light and does not have special restriction to the ground, and through intelligent PLC control system, outdoor temperature, humidity, wind-force, precipitation, vehicle business turn over, information such as outdoor safety can be gathered to the indoor outer of membrane structure coal yard, can command dangerous gas concentration such as carbon monoxide, carbon dioxide in the coal bunker completely, and temperature, humidity etc. have guaranteed the security of production and the normal operating of coal bunker in the storehouse.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a front view of the utility model relates to an air-supported membrane structure coal bunker system.

Fig. 2 is a top view of the utility model relates to an air-supported membrane structure coal bunker system.

Fig. 3 is an enlarged view of a point a in fig. 1.

Fig. 4 is an enlarged view at B in fig. 2.

Fig. 5 is an electrical connection diagram of a control unit in the control room.

In the figure, 1 is a coal retaining wall, 2 is an air film, 3 is an airtight door, 4 is a distribution room, 5 is a control room, 31 is a vehicle access door, 32 is a personnel entrance and exit safety door, 51 is a PLC main control unit, 52 is a snow removal unit, 53 is a sensor unit, 54 is a spray dust settling unit, 55 is a fire control unit, 56 is an automatic adjusting ventilation unit, 57 is an entrance and exit door unit, 521 is an exhaust port, 522 is an exhaust main pipe, 523 is an exhaust branch pipe, 524 is an electric control valve, and 525 is a filter screen.

Detailed Description

As shown in fig. 1 to 5, an air-supported membrane structure coal bunker system in the present embodiment includes: the coal mine leakage prevention device comprises a coal blocking wall 1, an air film 2, an airtight door 3, a power distribution chamber 4 and a control chamber 5, wherein the air film 2 is anchored at the upper end face of the coal blocking wall 1, the airtight door 3 is installed at the coal blocking wall 1, and the power distribution chamber 4 and the control chamber 5 are both installed outside the coal blocking wall 1; the control room 5 includes: PLC main control unit 51, snow removing unit 52, sensor unit 53, spraying dust fall unit 54, fire control unit 55, automatically regulated ventilation unit 56 and access door unit 57 all with PLC main control unit 51 electrical connection, electricity distribution room 4 is used for providing the electric energy source for whole coal bunker.

The snow removing unit 52 includes: the air outlet 521, the main exhaust pipe 522, the branch exhaust pipes 523, the electric control valve 524 and the filter screen 525, the air outlet 521 is arranged at the center of the top of the air film 2, the main exhaust pipe 522 is connected to the air outlet 521, the outlet of the main exhaust pipe 522 is connected with the branch exhaust pipes 523, the branch exhaust pipes 523 are uniformly distributed at the circumference of the outer side of the air outlet 521, the filter screen 525 is further fixedly arranged at the outlet of the branch exhaust pipe 523, the electric control valve 524 is arranged on the main exhaust pipe 522 and the branch exhaust pipe 523, and the electric control valve 524 is electrically connected with the PLC main control unit 51.

The sensor unit 53 includes: the device comprises a differential pressure sensor, a combustible gas sensor, a dust sensor, a temperature and humidity sensor and a snow thickness sensor, wherein the differential pressure sensor, the combustible gas sensor, the dust sensor, the temperature and humidity sensor and the snow thickness sensor are all electrically connected with the PLC main control unit 51.

The spray dust settling unit 54 includes: the dust suppression water pump comprises a water supply pipe, a dust suppression water pump and an atomization nozzle, wherein one end of the water supply pipe is connected with the dust suppression water pump, the other end of the water supply pipe is provided with the atomization nozzle, and the on-off of the dust suppression water pump is controlled by a PLC main control unit 51; the fire-fighting unit 55 is a fire-fighting water cannon or a fire-fighting water hose, the fire-fighting unit 55 is used for controlling fire in the coal bunker, and the automatic adjusting and ventilating unit 56 is used for replacing air in the coal bunker.

The airtight door 3 comprises: the vehicle access door 31 and the personnel access safety door 32 are provided, the vehicle access door 31 and the personnel access safety door 32 are provided with a plurality of doors, the access door unit 57 is an interlocking control device, and the access door unit 57 is used for controlling the opening and closing of the airtight door 3.

The snow thickness sensor is arranged on the top of the air film 2 and is DC 24V/0-160 mm.

The utility model discloses a PLC main control unit 51, snow removing unit 52, sensor unit 53, spraying dust fall unit 54, fire control unit 55, automatically regulated ventilation unit 56 and go out information transmission and feedback control between entry unit 57 and PLC main control unit 51, to the inside comprehensive regulation control that carries on of coal bunker.

Wherein, snow removing unit 52 during operation, when snow thickness sensor on the air film 2 received the signal that there is snow above the air film 2, give PLC main control unit 51 with information transmission, PLC main control unit 51 receives the signal after, control exhaust main pipe 522 and exhaust branch 523 on corresponding electrically controlled valve 524 open, exhaust and sweep, electrically controlled valve 524 can the independent control on a plurality of exhaust branch 523, when not blowing clean snow in the position direction, the electrically controlled valve 524 of control this position is opened, all the other closures, energy saving loss, the exit of exhaust branch 523 is provided with filter screen 525 and is used for preventing outside great pollutant from getting into exhaust branch 523, cause the jam of exhaust branch 523.

The coal bunker dust and temperature and humidity sensor is characterized in that the pressure difference sensor, the combustible gas sensor, the dust sensor and the temperature and humidity sensor are arranged in a plurality of numbers, the pressure difference sensor, the combustible gas sensor, the dust sensor and the temperature and humidity sensor are uniformly distributed at positions needing to be detected of the coal bunker, and meanwhile the sensor unit 53 and the PLC main control unit 51 are in information transmission. The spray dust settling unit 54 controls the coal dust to be settled on the ground through the use of a water supply pipe, a dust suppression water pump and an atomizing nozzle, and prevents the coal dust from flying. Fire unit 55 and automatically regulated ventilation unit 56 all are used for control and prevent that the gas from exceeding standard, when combustible gas sensor received the too high information of gas concentration, the dust fall air exit that sets up in automatically regulated ventilation unit 56 is opened, the fan that sets up simultaneously in the air film sends into the indoor high concentration air of new trend replacement, avoid the emergence of conflagration or explosion, be equipped with fire water monitor or fire hose simultaneously, prevent the emergence of unexpected situation, still be equipped with carbon monoxide in the coal bunker, carbon dioxide monitoring facilities, in time send into the new trend replacement after the air quality exceeds standard in the coal bunker, even there are vehicle and the mechanical equipment of operation in the coal bunker, also can not cause personnel's harm.

The vehicle access door 31 and the personnel in-and-out safety door 32 in the airtight door 3 are provided with two doors in the vehicle access and the personnel access, wherein the two doors can not be opened simultaneously, when one door is closed, the other door can be opened, the leakage of the gas in the gas film 2 is reduced, and the utilization rate of the gas in the gas film 2 is improved.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. It will be apparent to those skilled in the art that modifications and improvements can be made to the above-described embodiments without departing from the spirit and scope of the invention. Accordingly, it will be appreciated that those skilled in the art, upon attaining an understanding of the foregoing may readily produce alterations to, variations of, and equivalents to these embodiments without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims

1. An air-supported membrane structure coal bunker system comprising: the coal blocking wall is characterized by comprising a coal blocking wall (1), an air film (2), an airtight door (3), a power distribution chamber (4) and a control chamber (5), wherein the air film (2) is anchored on the upper end face of the coal blocking wall (1), the airtight door (3) is installed on the coal blocking wall (1), and the power distribution chamber (4) and the control chamber (5) are installed outside the coal blocking wall (1); characterized in that said control chamber (5) comprises: PLC main control unit (51), snow removing unit (52), sensor unit (53), spraying dust fall unit (54), fire control unit (55), automatically regulated ventilation unit (56) and access door unit (57) all with PLC main control unit (51) electrical connection, electricity distribution room (4) are used for providing the electric energy source for whole coal bunker.

2. The air-supported membrane structured coal bunker system of claim 1, wherein: the snow removing unit (52) includes: the utility model provides a gas vent (521), the exhaust is responsible for (522), exhaust branch pipe (523), electric control valve (524) and filter screen (525), gas vent (521) set up the top center department at air film (2), be connected with exhaust on gas vent (521) and be responsible for (522), the exit that the exhaust is responsible for (522) is connected with a plurality of exhaust branch pipes (523), and is a plurality of exhaust branch pipe (523) evenly distributed is in gas vent (521) outside circumference department, the exit of exhaust branch pipe (523) still fixedly is provided with filter screen (525), all be provided with electric control valve (524) on exhaust branch pipe (522) and exhaust branch pipe (523), electric control valve (524) and PLC main control unit (51) electrical connection.

3. The air-supported membrane structured coal bunker system of claim 2, wherein: the sensor unit (53) includes: the device comprises a differential pressure sensor, a combustible gas sensor, a dust sensor, a temperature and humidity sensor and a snow thickness sensor, wherein the differential pressure sensor, the combustible gas sensor, the dust sensor, the temperature and humidity sensor and the snow thickness sensor are all electrically connected with a PLC main control unit (51).

4. The air-supported membrane structured coal bunker system of claim 2, wherein: the spray dust settling unit (54) includes: the dust suppression water pump comprises a water supply pipe, a dust suppression water pump and an atomization nozzle, wherein one end of the water supply pipe is connected with the dust suppression water pump, the other end of the water supply pipe is provided with the atomization nozzle, and the on-off of the dust suppression water pump is controlled by a PLC main control unit (51); the fire-fighting unit (55) is a fire-fighting water cannon or a fire-fighting water tap, the fire-fighting unit (55) is used for controlling fire in the coal bunker, and the automatic adjusting ventilation unit (56) is used for replacing air in the coal bunker.

5. An air-supported membrane structured coal bunker system as claimed in claim 3 or claim 4 wherein: the airtight door (3) comprises: the vehicle access door (31) and the personnel access safety door (32), the vehicle access door (31) and the personnel access safety door (32) are provided with a plurality of doors, the access door unit (57) is an interlocking control device, and the access door unit (57) is used for controlling the opening and closing of the airtight door (3).

6. The air-supported membrane structured coal bunker system of claim 3, wherein: the snow thickness sensor is arranged on the top of the air film (2) and is DC 24V/0-160 mm.