Device for treating blockage and preventing collapse of coal bunker

Abstract

The utility model provides a device for controlling reservoir blockage and preventing reservoir collapse of a coal reservoir, which comprises an air cannon, a shipping space meter, a hydraulic anti-collapse flashboard, a warning lamp, a voice alarm and a video monitoring platform, the shipping space meter is arranged at an inlet above the coal reservoir, and the shipping space meter is connected with a belt centralized control system of the coal reservoir; two groups of air cannons are fixed above the coal bunker, and release pipes connected with each group of air cannons are respectively positioned on the inner walls of the coal bunker at different depths; the hydraulic anti-collapse flashboard is arranged on the coal feeder below the coal bunker, and the hydraulic anti-collapse flashboard can move on the coal feeder and is used for blocking a lower outlet of the coal bunker; a warning lamp is arranged above the coal bunker, and voice alarms are respectively arranged above and below the coal bunker and are respectively connected with an electric appliance control box of the air cannon; the video monitoring platform is arranged above the coal warehouse, and a camera of the video monitoring platform monitors the upper portion and the lower portion of the coal warehouse. The problem that dredging is time-consuming and unsafe after the coal bunker is blocked is solved, and meanwhile bunker collapse is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the field of coal storage management in underground coal mines, in particular to a device for managing coal storage blockage and preventing storage collapse. Background Art

[0002] Coal bunkers are warehouses for storing coal and are transfer points for coal transportation. With the advancement of modern mechanized operations, the storage capacity of coal bunkers has increased accordingly. However, due to the complexity of mine geology, large pieces of gangue will inevitably be produced. Large pieces of gangue will cause the coal bunker to be blocked. Gangue mud, wood and debris in the maintenance tunnel, etc. entering the coal bunker will also cause the coal bunker to be blocked, and the coal in the coal bunker cannot flow. In addition, once water coal enters the coal bunker, it will wash away the coal feeder at the exit end below the coal bunker and crush the belt. Once a person is near the coal feeder, it will cause injuries. The traditional way to deal with coal bunker blockage is to use a sledgehammer to hit the small funnel of the coal feeder of the coal bunker, or to use a long anchor cable to manually dredge it. These dredging methods are all operated from the exit below the coal bunker. If the blockage is serious, blasting will also be used to dredge it, but these methods are relatively time-consuming and dangerous. Utility Model Content

[0003] In order to solve the problem that it is time-consuming and dangerous to clear the coal storehouse after the coal storehouse is blocked or collapsed in the prior art, the utility model provides a device for controlling the blockage and preventing the coal storehouse from collapsing.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A device for controlling coal bunker blockage and preventing coal bunker collapse comprises: an air cannon, a position meter, a hydraulic anti-collapse gate, a warning light, a voice alarm and a video monitoring platform. A position meter is arranged at the upper entrance of the coal bunker, and the position meter is connected to the belt centralized control system of the coal bunker; two groups of air cannons are fixed above the coal bunker, and the release pipes connected to each group of air cannons are respectively located on the inner wall of the coal bunker at different depths; the hydraulic anti-collapse gate is arranged on a coal feeder located below the coal bunker, and the hydraulic anti-collapse gate can be moved on the coal feeder to block the lower outlet of the coal bunker; a warning light is arranged above the coal bunker, and a voice alarm is respectively arranged above and below the coal bunker, and respectively connected to the electrical control box of the air cannon; the video monitoring platform is arranged above the coal bunker, and the camera of the video monitoring platform monitors the upper and lower parts of the coal bunker.

[0006] Preferably, the video monitoring platform is provided with four cameras, which are respectively installed at positions where the entrance of the coal storage, the coal discharge port of the belt conveyor, the coal discharge port of the coal feeder, and the movement of the hydraulic anti-collapse gate of the coal feeder can be observed.

[0007] Preferably, the hydraulic anti-collapse gate includes a gate frame, a gate, and a pair of hydraulic cylinders. The gate frame is horizontally arranged on the top of the coal feeder, the top two sides of the gate frame are set as angle steels, the middle part of the gate frame is set as a trough body, a pair of hydraulic cylinders are fixed on both sides of the gate frame, a gate is located in a pair of angle steels, and the movable ends of a pair of hydraulic cylinders are connected to the bottom end of a gate through a connecting seat.

[0008] Preferably, the hydraulic pump station starter of the hydraulic anti-collapse gate is connected to an infrared pyroelectric sensor or a magnetic proximity switch through a relay, and a group of infrared pyroelectric sensors or magnetic proximity switches are respectively arranged at the maintenance platform and the entrance of the coal feeder, and a group of infrared pyroelectric sensors or magnetic proximity switches is connected to one of the voice alarms.

[0009] Preferably, the pair of hydraulic cylinders are respectively provided with multi-node travel switches, and the multi-node travel switches are connected to the control switch of the coal feeder.

[0010] Preferably, the gate plate is a steel plate with a thickness of 20 mm, the steel plate is provided with water seepage holes, and replaceable isolation rods are provided at intervals at the front end of the steel plate.

[0011] Preferably, the pneumatic solenoid valves of the two groups of air cannons are connected to the wireless receiver via air cannon time relays respectively; the voice alarm is connected to the wireless receiver via the voice time relay, and the warning light is connected to the voice time relay via the warning relay.

[0012] The beneficial effects of the utility model are as follows: the device for controlling coal bunker blockage and preventing coal bunker collapse of the utility model utilizes a position meter to monitor the capacity of coal in the coal bunker, determines the blockage position of the coal bunker, utilizes a video monitoring platform to comprehensively monitor the coal bunker, utilizes two groups of air cannons to clear the blockage points, and clears the blockage points quickly and safely; in addition, when water-coal enters the bunker, a hydraulic anti-collapse gate is utilized to secondary block the coal bunker outlet to prevent water-coal from impacting the coal feeder and causing equipment and personnel casualties. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a schematic diagram of the structure of the device for controlling coal bunker blockage and preventing bunker collapse according to the utility model;

[0015] Figure 2 for Figure 1 The structural schematic diagram of the coal feeder shown;

[0016] Figure 3 for Figure 2 The structural schematic diagram of the hydraulic anti-collapse gate shown;

[0017] Figure 4 This is a circuit connection diagram of the wireless receiver of the utility model.

[0018] In the figure:

[0019] 1. Air cannon; 2. Position meter; 3. Warning light; 4. Voice alarm; 5. Video monitoring platform; 6. Coal bunker; 7. Release pipe; 8. Coal feeder; 9. Hydraulic anti-collapse gate; 10. Electrical control box; 11. Infrared pyroelectric sensor; 12. Pneumatic solenoid valve; 13. Air cannon time relay; 14. Wireless receiver; 15. Voice time relay; 16. Warning relay; 51. Camera; 91. Gate frame; 92. Gate; 93. Hydraulic cylinder; 94. Isolation rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1 to Figure 2 The device shown is used for controlling the blockage and preventing the coal bunker from collapsing, comprising: an air cannon 1, a position meter 2, a hydraulic anti-collapse gate 9, a warning light 3, two voice alarms 4 and a video monitoring platform 5. A position meter 2 is arranged at the upper entrance of the coal bunker 6, and the position meter 2 is connected to the belt centralized control system of the coal bunker to observe the capacity of the coal bunker in real time; two groups of air cannons 1 are fixed above the coal bunker 6, and the release pipes 7 connected to each group of air cannons 1 are respectively located on the inner wall of the coal bunker at different depths and are arranged as needed; the hydraulic anti-collapse gate is arranged on the coal feeder 8 located below the coal bunker, and the hydraulic anti-collapse gate 9 can be moved on the coal feeder to block the lower outlet of the coal bunker; the warning light 3 is located above the coal bunker, and the two voice alarms 4 are respectively located above and below the coal bunker, and the warning light 3 and the voice alarm 4 are respectively connected to the electrical control box 10 of the air cannon 1; the video monitoring platform 5 is arranged above the coal bunker, and the camera 51 of the video monitoring platform monitors the upper and lower parts of the coal bunker 6.

[0022] like Figure 1As shown, the video monitoring platform 5 is provided with four cameras 51, and the four cameras 51 are respectively installed at positions where the entrance of the coal storage, the coal discharge port of the belt conveyor, the coal discharge port of the coal feeder, and the movement of the hydraulic anti-collapse gate of the coal feeder can be observed. The cameras are used for all-round real-time monitoring of the situation in the coal storage, and any abnormality can be detected.

[0023] like Figure 2 and Figure 3 As shown, the hydraulic anti-collapse gate 9 includes a gate frame 91, a gate 92, and a pair of hydraulic cylinders 93. The gate frame 91 is horizontally arranged at the top of the coal feeder 8. The top two sides of the gate frame 91 are set as angle steels. The middle of the gate frame 91 is set as a trough body. A pair of hydraulic cylinders are fixed on both sides of the gate frame. A gate 92 is located in a pair of angle steels. The movable ends of a pair of hydraulic cylinders are connected to the bottom of a gate through a connecting seat, driving a gate to move, and can directly block the outlet of the coal storage. A gate is a steel plate with a thickness of 20 mm. The steel plate is provided with seepage holes. The front end of the steel plate is provided with replaceable isolation rods 94 at intervals to reduce the risk of collapse.

[0024] The hydraulic pump station starter of the hydraulic anti-collapse gate 9 is connected to the infrared pyroelectric sensor 11 or the magnetic proximity switch through a relay. A group of infrared pyroelectric sensors or magnetic proximity switches are respectively arranged at the maintenance platform and the entrance of the coal feeder. A group of infrared pyroelectric sensors 11 or magnetic proximity switches are connected to a voice alarm 4. A pair of hydraulic cylinders are respectively provided with multi-node travel switches, which are connected to the control switch of the coal feeder. If a person enters the maintenance platform of the coal feeder by mistake, the infrared pyroelectric sensor or magnetic proximity switch is used to monitor the person, and the alarm is used to remind the person who enters the platform of the coal feeder by mistake. The hydraulic anti-collapse gate is started to block the exit of the coal storage, and the multi-node travel switch on the hydraulic anti-collapse gate is linked to the coal feeder to close. If a person enters the pedestrian passage of the maintenance platform of the coal feeder, the infrared pyroelectric sensor or magnetic proximity switch is used to monitor the person, and the voice prompt is used to remind the operator or the person who enters by mistake to "pass quickly".

[0025] like Figure 4 As shown, the pneumatic solenoid valves 12 of the two groups of air cannons 1 are connected to the wireless receiver 14 through the air cannon time relay 13 respectively; the voice alarm 4 is connected to the wireless receiver 14 through the voice time relay 15, and the warning light 3 is connected to the voice time relay 15 through the warning relay 16 for remote control to increase the safety of operation.

[0026] When the coal bunker is blocked, the location of the blockage is determined by the data monitored by the position meter, and the operator sets up a safety cordon below the coal bunker. After checking the video monitoring platform and meeting the conditions for starting the air cannon, the electrical control box of the air cannon is started through the pneumatic solenoid valve. The warning light above the coal bunker lights up, and the voice alarm below the coal bunker continues to sound an alarm, emitting a warning tone of "The coal bunker is blocked and is being cleared. Pedestrians please do not approach." The potential energy suddenly released by the release tube of the air cannon generates a strong shock wave that rushes directly to the material blockage area of ​​the coal bunker, thereby eliminating the blockage and resuming normal operation. The release tubes of the two sets of air cannons can be started at the same time, at intervals, or individually.

[0027] When in use, the hydraulic station of the coal feeder's control switch can be moved to 10 meters away, and the coal feeder and hydraulic anti-collapse gate can be remotely controlled to ensure that the water and coal are buffered and flow toward the outlet of the coal feeder, reducing the risk of collapse, reducing the number of people on site, and achieving safety without anyone. The video monitoring platform monitors the entrance of the coal storage and the operating status of the coal feeder in real time, and the air cannon, voice alarm and warning light are remotely controlled through the wireless receiver to increase safety and achieve the purpose of safe dredging. When there is suspected water and coal in the coal storage, the gate and hydraulic anti-collapse gate of the coal feeder are started to reduce the risk of collapse. At the same time, the hydraulic anti-collapse gate is closed and the coal feeder is closed in conjunction with it. When someone on the coal feeder enters by mistake, the infrared thermal release sensor senses and prompts through the voice alarm, closing the hydraulic anti-collapse gate and linking the coal feeder to stop.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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

1. A device for controlling coal bunker blockage and preventing bunker collapse, characterized in that: include: Air cannon, position meter, hydraulic anti-collapse gate, warning light, voice alarm and video monitoring platform. A position meter is set at the upper entrance of the coal bunker, which is connected to the belt centralized control system of the coal bunker. Two groups of air cannons are fixed above the coal bunker, and the release pipes connected to each group of air cannons are located on the inner wall of the coal bunker at different depths. The hydraulic anti-collapse gate is set on the coal feeder located below the coal bunker, and the hydraulic anti-collapse gate can be moved on the coal feeder to block the lower exit of the coal bunker. A warning light is set above the coal bunker, and a voice alarm is set above and below the coal bunker respectively, which are respectively connected to the electrical control box of the air cannon. The video monitoring platform is set above the coal bunker, and the camera of the video monitoring platform monitors the top and bottom of the coal bunker.

2. The device for controlling coal bunker blockage and preventing bunker collapse according to claim 1 is characterized in that: The video monitoring platform is provided with four cameras, which are respectively installed at positions where the entrance of the coal storage, the coal discharge port of the belt conveyor, the coal discharge port of the coal feeder, and the movement of the hydraulic anti-collapse gate of the coal feeder can be observed.

3. The device for controlling coal bunker blockage and preventing coal bunker collapse according to claim 1, characterized in that: The hydraulic anti-collapse gate includes a gate frame, a gate, and a pair of hydraulic cylinders. The gate frame is horizontally arranged on the top of the coal feeder, the top two sides of the gate frame are arranged with angle steels, the middle part of the gate frame is arranged with a trough body, a pair of hydraulic cylinders are fixed on both sides of the gate frame, a gate is located in a pair of angle steels, and the movable ends of a pair of hydraulic cylinders are connected to the bottom end of a gate through a connecting seat.

4. The device for controlling coal bunker blockage and preventing bunker collapse according to claim 1 is characterized in that: The hydraulic pump station starter of the hydraulic anti-collapse gate is connected to an infrared pyroelectric sensor or a magnetic proximity switch through a relay, and a group of infrared pyroelectric sensors or magnetic proximity switches are respectively arranged at the maintenance platform and the entrance of the coal feeder, and a group of infrared pyroelectric sensors or magnetic proximity switches are connected to one of the voice alarms.

5. The device for controlling coal bunker blockage and preventing coal bunker collapse according to claim 3 is characterized in that: The pair of hydraulic cylinders are respectively provided with multi-node travel switches, and the multi-node travel switches are connected to the control switch of the coal feeder.

6. The device for controlling coal bunker blockage and preventing coal bunker collapse according to claim 3, characterized in that: The gate plate is a steel plate with a thickness of 20 mm, on which water seepage holes are arranged, and replaceable isolation rods are arranged at intervals at the front end of the steel plate.

7. The device for controlling coal bunker blockage and preventing bunker collapse according to claim 2, characterized in that: The pneumatic solenoid valves of the two groups of air cannons are connected to the wireless receiver via the air cannon time relay respectively; the voice alarm is connected to the wireless receiver via the voice time relay, and the warning light is connected to the voice time relay via the warning relay.

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