Dust falling device for coal conveying belt conveyor

Abstract

The utility model discloses a dust falling device for a coal conveying belt conveyor, and relates to the technical field of dust control of a coal conveying belt transfer station, the dust falling device for the coal conveying belt conveyor comprises a support assembly, a plurality of spraying assemblies and a folding cover, the support assembly comprises two underframes, at least two supporting frames and a plurality of frameworks, the bottom frame is used for being installed on the two sides of a coal conveying device, the at least two supporting frames are detachably installed at the two ends of the bottom frame in the length direction, the multiple frameworks are installed on the bottom frame in a sliding mode and located between the two supporting frames, and the multiple spraying assemblies are arranged on the multiple supporting frames correspondingly. The spraying assembly is used for spraying water mist towards the coal conveying device, and the folding cover at least detachably covers the top ends of the two supporting frames and the multiple frameworks on paper. The driving framework drives the folding cover to contract or extend, the coal conveying device is exposed in the contraction process of the folding cover, and workers can conveniently maintain the coal conveying device daily.

Description

Technical Field

[0001] The utility model relates to the technical field of dust control in coal conveying belt transfer stations, and particularly relates to a dust reduction device for a coal conveying belt conveyor. Background Art

[0002] During the coal material conveying process, due to falling, impact, and mutual friction, fine coal dust is generated. The coal dust is light in weight and is carried away by the external wind force, resulting in pollution. It will not only cause environmental pollution and affect the hygiene of the workplace, but may even cause fire or explosion. In addition, when the dust is inhaled into the human body, it is easy to cause various diseases, seriously affecting the safe and civilized production of the power plant and causing serious waste of coal resources. Therefore, it is necessary to carry out dust prevention treatment during the operation of the coal conveying belt conveyor.

[0003] The existing coal conveying belt conveyors mostly carry out dust prevention treatment by setting dust-proof covers. The length of the belt conveyor for transporting coal mines is relatively long, and the volume of the dust-proof cover required is also relatively large. It is extremely inconvenient to carry the dust-proof cover with a large volume during disassembly or installation, and a large number of staff are required to assist, resulting in inconvenience for maintenance personnel to remove the dust-proof cover for overhauling the coal conveying belt conveyor. Content of the Utility Model

[0004] The main purpose of the utility model is to propose a dust reduction device for a coal conveying belt conveyor, aiming to facilitate the opening of the dust-proof cover for easy maintenance of the belt conveyor.

[0005] To achieve the above object, the dust reduction device for a coal conveying belt conveyor proposed by the utility model includes:

[0006] A bracket assembly, including two chassis, at least two support frames, and a plurality of skeletons, for installation on both sides of the coal material conveying device. At least two of the support frames are detachably installed at both ends in the length direction of the chassis, and the plurality of skeletons are slidably installed on the chassis and located between the two support frames;

[0007] A plurality of spray assemblies, respectively arranged on the plurality of support frames, and the spray assemblies are used for spraying water mist towards the coal material conveying device; and,

[0008] A folding cover, at least detachably covering the tops of the two support frames and the plurality of skeletons.

[0009] Preferably, the bracket assembly further includes:

[0010] A plurality of connecting blocks, respectively arranged on the plurality of skeletons, and the plurality of connecting blocks are all slidably connected in the chassis;

[0011] A plurality of pulleys are respectively rotatably connected to the plurality of connecting blocks, and the pulleys roll along the length extension direction of the chassis, so that when the pulleys drive the connecting blocks to move, the framework is driven to move towards one of the support frames.

[0012] Preferably, a limiting groove for the pulleys to roll is formed in the chassis to limit the rolling direction of the pulleys, and a limiting rod penetrating through the plurality of connecting blocks is arranged in the limiting groove to prevent the pulleys from disengaging from the limiting groove.

[0013] Preferably, an elastic member is arranged in the limiting rod, and the elastic member extends or contracts towards the rolling direction of the pulley. A limiting plate slidably connected in the limiting rod is arranged on the elastic member. An intercepting rod is arranged on one side of the limiting plate away from the elastic member, and one end of the intercepting rod away from the limiting plate is in contact with the inner cavity wall of the limiting groove.

[0014] Preferably, a connecting component for installing the folding cover is arranged on each of the plurality of support frames.

[0015] Preferably, the connecting component includes:

[0016] A plurality of threaded rods are arranged on the side of the support frame facing the folding cover, and the threaded rods penetrate through the folding cover to limit the installation position of the folding cover;

[0017] A plurality of fixing blocks are respectively threadedly connected to the outer sides of the plurality of threaded rods to prevent the folding cover from disengaging from the support frame.

[0018] Preferably, positioning holes for the threaded rods to penetrate are formed in the folding cover, and the length and width of one side of the fixing block facing the folding cover are both larger than the diameter of the positioning holes to prevent the fixing block from entering the positioning holes.

[0019] Preferably, the two chassis are arranged in parallel.

[0020] Preferably, the spraying component includes:

[0021] A water supply tank is arranged on the support frame;

[0022] A plurality of atomizing nozzles are all arranged on the water supply tank, and the atomizing nozzles spray water mist towards the coal material conveying device.

[0023] Preferably, a water supply pipe is communicated with the water supply tank. One end of the water supply pipe away from the water supply tank is communicated with a water pump. A water extraction pipe is communicated with the water pump. One end of the water extraction pipe away from the water pump is communicated with a water storage tank.

[0024] In the technical solution provided by the present utility model, at least two of the support frames are detachably installed at both ends in the length direction of the chassis, and a plurality of the skeletons are slidably installed on the chassis and located between the two support frames. The folding cover is at least detachably covered on the tops of the two support frames and the plurality of skeletons. By driving the movement of the skeletons, the folding cover is driven to contract or extend. During the contraction process of the folding cover, the coal material conveying device is exposed, facilitating the daily maintenance of the coal material conveying device by workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0026] Figure 1 FIG. is a three-dimensional schematic diagram of an embodiment of a dust reduction device for a coal conveyor belt provided by the present utility model;

[0027] Figure 2 is Figure 1 a cross-sectional schematic diagram of the dust reduction device for the coal conveyor belt;

[0028] Figure 3 is Figure 2 an enlarged schematic diagram of the partial area A;

[0029] Figure 4 is Figure 1 a structural schematic diagram of the spray assembly.

[0030] Explanation of the reference numerals in the drawings:

[0031] 1. Bracket assembly; 101. Chassis; 102. Support frame; 103. Skeleton; 104. Connecting block; 105. Pulley; 2. Spray assembly; 201. Water supply tank; 202. Atomizing nozzle; 3. Folding cover; 4. Connecting assembly; 401. Fixed block; 402. Threaded rod; 5. Limiting rod; 6. Intercepting rod; 7. Limiting plate; 8. Elastic member; 9. Water supply pipe; 10. Water pump; 11. Water suction pipe; 12. Water storage tank.

[0032] The realization of the purpose, functional characteristics and advantages of the present utility model will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0034] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0035] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0036] The present utility model provides a dust reduction device for a coal conveying belt conveyor. Figures 1 to 4 This is an embodiment of the dust reduction device for a coal conveying belt conveyor provided by the present utility model.

[0037] Please refer to Figures 1 to 2 , the dust reduction device for a coal conveying belt conveyor includes a bracket assembly 1, a plurality of spray assemblies 2 and a folding cover 3. The bracket assembly 1 includes two bottom frames 101, at least two support frames 102 and a plurality of skeletons 103, and is used to be installed on both sides of the coal material conveying device. At least two of the support frames 102 are detachably installed at both ends in the length direction of the bottom frame 101. A plurality of the skeletons 103 are slidably installed on the bottom frame 101 and are located between the two support frames 102. The plurality of spray assemblies 2 are respectively arranged on the plurality of support frames 102, and the spray assemblies 2 are used to spray water mist towards the coal material conveying device. The folding cover 3 is at least detachably covered on the tops of the two support frames 102 and the plurality of skeletons 103.

[0038] When using the coal conveying device, first install a chassis 101 on both sides of the coal conveying device, and a support frame 102 is installed on the chassis 101. Among them, two support frames 102 are respectively installed at both ends of the chassis 101 in the length direction. At the same time, a plurality of skeletons 103 are evenly installed between these two support frames 102. Then, install the folding cover 3 on the support frame 102 and the skeleton 103. When a certain part of the coal conveying device is damaged and needs to be repaired, remove the folding cover 3 on the support frame 102 closest to this damaged part, and then push the skeleton 103 towards the other support frame 102. The skeleton 103 drives the folding cover 3 to contract towards the other support frame 102 until the damaged part is exposed, and then stop pushing the skeleton 103. When the repair of the coal conveying device is completed, push the skeleton 103 to the initial position until the folding cover 3 extends to the initial length and is installed on the support frame 102 again to cover the coal conveying device.

[0039] When the coal conveying device conveys coal, coal dust will be generated due to various reasons of impact, and the coal dust will disperse into the air. Therefore, a spraying component 2 is installed on the support frame 102, and water mist is sprayed towards the coal on the coal conveying device through the spraying component 2, so that the water mist combines with the coal and falls back on the coal conveying device again, avoiding the coal dust dispersing into the air and polluting the environment and being inhaled by the staff, which will damage the health of the staff. At the same time, the coal conveying device is covered by the folding cover 3 to prevent some coal dust from dispersing into the air again after drying during transportation.

[0040] The spraying component 2 is mainly arranged on the support frames 102 at both ends of the chassis 101, so that the coal on the coal conveying device will undergo a dust reduction operation when entering the folding cover 3 and also when leaving the folding cover 3, so that the coal dust generated during the transportation of the coal will not fly into the air. All the coal dust is either suppressed on the coal conveying device by the water mist or blocked inside by the folding cover, thus preventing the diffusion of coal dust. At the same time, it prevents the staff from being difficult to inhale coal dust when inputting and outputting coal on the coal conveying device, so as to avoid the staff inhaling a large amount of coal dust and damaging their health. At the same time, it also prevents the coal dust from escaping into the air and polluting the environment, and it is convenient to collect the escaped coal dust for utilization, reducing the loss during transportation, thereby reducing costs. The spraying component 2 and the folding cover 3 cooperate with each other to greatly reduce the environmental pollution caused by the coal conveying device during transportation.

[0041] Therefore, in the technical solution provided by the utility model, at least two of the support frames 102 are detachably installed at the two ends of the base frame 101 in the length direction, and the multiple skeletons 103 are slidably installed on the base frame 101 and are located between the two support frames 102. The folding cover 3 is at least detachably covered on the top ends of the two support frames 102 and the multiple skeletons 103 on the paper. The skeleton 103 is driven to move to drive the folding cover 3 to shrink or extend. The folding cover 3 reveals the coal conveying device during the shrinkage process, which is convenient for workers to perform daily maintenance of the coal conveying device.

[0042] In order to make the frame 103 slide more smoothly on the base frame 101, it is necessary to provide other auxiliary structures for the frame 103 so that the frame 103 can smoothly drive the folding cover 3 to extend or contract when being subjected to force.

[0043] Specifically, in an embodiment of the utility model, the bracket assembly 1 also includes a plurality of connecting blocks 104 and a plurality of pulleys 105, the connecting blocks 104 are respectively arranged on the plurality of skeletons 103, and the plurality of connecting blocks 104 are all slidably connected in the base frame 101, a plurality of pulleys 105 are respectively rotatably connected to the plurality of connecting blocks 104, and the pulleys 105 roll along the length extension direction of the base frame 101, so that when the pulley 105 drives the connecting block 104 to move, it drives the skeleton 103 to move toward one of the support frames 102.

[0044] When the frame 103 is pushed, the frame 103 drives the pulley 105 to roll on the base frame 101 through the connecting block 104. The rolling of the pulley 105 enables the connecting block 104 to move more smoothly, thereby enabling the frame 103 to move more smoothly in the pushing direction.

[0045] Furthermore, a limiting groove for the pulley 105 to roll is provided on the base frame 101 to limit the rolling direction of the pulley 105, and a limiting rod 5 passing through a plurality of the connecting blocks 104 is provided in the limiting groove to limit the pulley 105 from leaving the limiting groove.

[0046] When the pulley 105 rolls on the chassis 101, if it is not restricted, it is easy for the rolling direction of the pulley 105 to deviate, and then roll off the chassis 101, causing the moving direction of the frame 103 to skew, resulting in the folding cover 3 being unable to complete the contraction or extension work. Therefore, a limiting groove is opened on the chassis 101, and the pulley 105 is placed in the limiting groove. The rolling direction of the pulley 105 is restricted by the extending direction of the limiting groove, so that the rolling direction of the pulley 105 cannot deviate significantly, but only slightly. After rolling slightly, it will gradually roll and fit into the limiting groove, and then be restricted by the groove wall of the limiting groove to return to the correct rolling direction. When the pulley 105 rolls in the limiting groove, the upward moving direction is not restricted. When the frame 103 is lifted upward, the pulley 105 can be pulled out of the limiting groove. Therefore, a limiting rod 5 is arranged in the limiting groove, and at the same time, the connecting blocks 104 corresponding to the pulley 105 located in the limiting groove are all penetrated by the limiting rod 5, so that the connecting blocks 104 slide outside the limiting rod 5. The arrangement of the limiting rod 5 not only prevents the connecting blocks 104 from moving the pulley 105 out of the limiting groove, but also secondarily restricts the rolling direction of the pulley 105, so that the pulley 105 can only move along the length direction of the limiting rod 5, thus stably realizing the contraction and extension of the folding cover 3

[0047] Please refer to Figure 3 , during use, the frame 103 may be damaged due to multiple collisions and other reasons. The damaged frame 103 needs to be replaced. The connecting block 104 is sleeved outside the limiting rod 5. To separate the frame 103 from the chassis 101, the connecting block 104 needs to be removed from the limiting rod 5. Therefore, a structure for conveniently disassembling the connecting block 104 is arranged on the limiting rod 5.

[0048] Specifically, in the embodiment of the present invention, an elastic member 8 is arranged in the limiting rod 5, and the elastic member 8 extends or contracts in the rolling direction of the pulley 105. A limiting plate 7 slidably connected in the limiting rod 5 is arranged on the elastic member 8. An intercepting rod 6 is arranged on the side of the limiting plate 7 away from the elastic member 8, and one end of the intercepting rod 6 away from the limiting plate 7 is in contact with the inner cavity wall of the limiting groove.

[0049] When the connecting block 104 needs to be sleeved on the limiting rod 5 or disassembled from the limiting rod 5, the intercepting rod 6 can be pushed. After being pushed, the intercepting rod 6 moves into the limiting rod 5, and drives the limiting plate 7 to slide together while compressing the elastic member 8 through the limiting plate 7. When the intercepting rod 6 enters the limiting rod 5, there is a gap between the limiting rod 5 and the inner cavity wall of the limiting groove. At this time, the pulley 105 can be placed into the limiting groove, and then the connecting block 104 is moved. After the limiting rod 5 penetrates the connecting block 104 or the connecting block 104 is separated from the limiting rod 5, the intercepting rod 6 is released. At this time, the installation or disassembly of the connecting block 104 and the limiting rod 5 can be completed.

[0050] The function of the elastic member 8 is that it can contract after being pushed by the limiting plate 7 and can automatically rebound to its original length after losing the push of the limiting plate 7. Therefore, a spring can be used as the elastic member 8. The spring will shorten after being pushed by an external force and will return to its initial state through elastic potential energy after losing the external force suppression, so as to cooperate with the limiting plate 7 to slide along the length direction of the limiting rod 5 within the limiting rod 5.

[0051] Please refer to Figure 4 , in order to facilitate opening the folding cover 3 during the use of the coal material conveying device to perform maintenance work on a certain part of it, a structure that is convenient for disassembly and assembly is provided between the folding cover 3 and the support frame 102.

[0052] Specifically, in the embodiment of the present utility model, connection components 4 for installing the folding cover 3 are provided on multiple support frames 102.

[0053] Furthermore, the connection component 4 includes a plurality of threaded rods 402 and a plurality of fixing blocks 401. The plurality of threaded rods 402 are arranged on the side of the support frame 102 facing the folding cover 3, and the threaded rods 402 penetrate through the folding cover 3 to limit the installation position of the folding cover 3. The plurality of fixing blocks 401 are respectively threadedly connected to the outer sides of the plurality of threaded rods 402 to limit the folding cover 3 from detaching from the support frame 102.

[0054] When it is necessary to open the folding cover 3, rotate the fixing block 401 on the outer side of the same support frame 102 so that the fixing block 401 detaches from the threaded rod 402, thereby releasing the restriction on the folding cover 3. Then move the folding cover 3 on this support frame 102 in a direction away from the support frame 102, so that the folding cover 3 detaches from the support frame 102. After the folding cover 3 detaches from the support frame 102, push the frame 103 in a direction away from this support frame 102 to drive the folding cover 3 to contract, thereby gradually opening the part shielded by the folding cover 3, facilitating the staff to repair this part of the coal material conveying device. After the repair is completed, push the frame 103 towards this support frame 102 so that the frame 103 returns to its initial position, and lay the folding cover 3 on the support frame 102 again. At the same time, make the threaded rod 402 on the support frame 102 penetrate through the folding cover 3, and finally screw on the fixing block 401 on the outer side of the threaded rod 402 to lock the folding cover 3, so that the folding cover 3 cannot detach from the support frame 102.

[0055] The main function of the connecting component 4 is to lock the folding cover 3 on the support frame 102, and at the same time enable the folding cover 3 to be detached from the support frame 102 at any time, facilitating the staff to drive the folding cover 3 to move through the movable frame 103 to complete the contraction and extension of the folding cover 3. Therefore, the connecting component 4 can be set not only as the cooperation of the threaded rod 402 and the fixing block 401, but also in the form of magnetic attraction. A plurality of positioning columns are arranged on the outer side of the support frame 102. After the positioning columns penetrate through the folding cover 3, the positioning block is sleeved on the outer side of the positioning column. A magnet is arranged inside the positioning block, and the magnet magnetically attracts the positioning column, so that the positioning block cannot be separated from the positioning column, thereby restricting the folding cover 3 from detaching from the support frame 102 and the positioning column. When the folding cover 3 needs to be taken out, only the positioning block needs to be pulled out from the outer side of the positioning column.

[0056] Further, a positioning hole for the threaded rod 402 to penetrate through is formed in the folding cover 3, and the length and width of the fixing block 401 on the side facing the folding cover 3 are both larger than the diameter of the positioning hole, so as to limit the fixing block 401 from entering the positioning hole.

[0057] For the threaded rod 402 to penetrate through the folding cover 3, a corresponding positioning hole needs to be formed in the folding cover 3, and the diameter of the positioning hole needs to be restricted to prevent the fixing block 401 from also passing through the positioning hole. Once the fixing block 401 can pass through the positioning hole, it will not be able to restrict the folding cover 3, allowing the folding cover 3 to be detached from the support frame 102 at will. Therefore, the diameter of the positioning hole is smaller than the length and width of the fixing block 401, so that the fixing block 401 cannot pass through the positioning hole at all. Thus, after the fixing block 401 is installed on the outer side of the threaded rod 402, the folding cover 3 can be pressed on the support frame 102, preventing the folding cover 3 from detaching from the support frame 102. During the use of the folding cover 3, there will be a certain amount of wear, which will cause the diameter of the positioning hole to gradually expand. Therefore, it is most appropriate to set the diameter of the positioning hole to be about 0.5 mm larger than the diameter of the threaded rod 402.

[0058] Two bottom frames 101 are provided on the coal material conveying device to install the support frame 102 and the frame 103. The number of the support frame 102 and the frame 103 is not less than two. Therefore, it is most appropriate to set a plurality of support frames 102 to the same specification and a plurality of frames 103 to the same specification. Therefore, it is necessary to limit the installation method of the two bottom frames 101 to avoid different specifications of the frame 103 or the support frame 102 being required at different positions.

[0059] Specifically, in the technical solution of the present invention, the two bottom frames 101 are arranged in parallel with each other.

[0060] Two chassis 101 arranged in parallel with each other enable the support frames 102 of the same specification to be installed at any position on the chassis 101, so that the staff can conveniently install the corresponding number of support frames 102 according to requirements. At the same time, the frameworks 103 of the same specification can be arranged on both chassis 101, and the frameworks 103 can move along the length direction of the chassis 101 to drive the folding cover 3 to contract or extend.

[0061] The spray assembly 2 needs to spray water mist towards the coal conveying device so that the coal dust on the coal conveying device cannot float into the air. Specifically, in the technical solution of the present utility model, the spray assembly 2 includes a water supply tank 201 and a plurality of atomizing nozzles 202, which are both arranged on the water supply tank 201, and the atomizing nozzles 202 spray water mist towards the coal conveying device.

[0062] The water supply tank 201 is filled with water. The atomizing nozzles 202 are communicated with the water supply tank 201. When it is necessary to spray water mist on the coal conveying device, the atomizing nozzles 202 atomize the water in the water supply tank 201 and spray it towards the coal conveying device, thereby suppressing the flying of coal dust.

[0063] The conveying speed of the coal conveying device will be changed according to needs. Therefore, the spraying efficiency of the atomizing nozzles 202 also needs to be changed accordingly. The faster the conveying speed of the coal conveying device, the faster the spraying efficiency of the atomizing nozzles 202 is required. Conversely, the slower the spraying efficiency of the atomizing nozzles 202 is required. Therefore, a speed measuring device needs to be set to detect the transmission speed of the coal conveying device. For example, a rotational speed measuring device is set on the motor of the coal conveying device to detect the rotational speed of the motor. By judging the change of the rotational speed of the motor, the change of the conveying speed of the coal conveying device is judged, and then the spraying efficiency of the atomizing nozzles 202 is changed. The spraying efficiency of the atomizing nozzles 202 can be adjusted by a flow control valve. A flow control valve is arranged between the atomizing nozzles 202 and the water supply tank 201. The flow control valve is electrically connected with the rotational speed measuring device. After the rotational speed measuring device detects the change of the rotational speed of the motor, it controls the flow control valve to adjust the flow rate of the water flow, thereby adjusting the spraying efficiency of the atomizing nozzles 202.

[0064] The water stored in the water supply tank 201 is limited. At the same time, the water supply tank 201 is also arranged on the support frame 102, resulting in that workers cannot directly replenish water into the water supply tank 201. Therefore, a structure for replenishing water into the water supply tank 201 is provided. Specifically, in the technical solution of the present utility model, a water supply pipe 9 is communicated with the water supply tank 201. One end of the water supply pipe 9 away from the water supply tank 201 is communicated with a water pump 10. A water suction pipe 11 is communicated with the water pump 10. One end of the water suction pipe 11 away from the water pump 10 is communicated with a water storage tank 12.

[0065] When it is necessary to replenish water into the water supply tank 201, the water pump 10 is started. The water pump 10 pumps out the water in the water storage tank 12 through the water suction pipe 11 and conveys the water into the water supply tank 201 through the water supply pipe 9 to replenish the water supply tank 201. Moreover, the box body of the water storage tank 12 is transparent, which is convenient for the staff to observe when the water storage tank 12 needs to be replenished with water source. At the same time, a water injection port is provided on the water storage tank 12, and a sealing cover is movably arranged inside the water injection port, which is convenient for the staff to open the water storage tank 12 at any time to replenish water into the water storage tank 12. A hydraulic sensor can also be arranged in the water storage tank 12, and an alarm is arranged outside the water storage tank 12. The alarm is electrically connected to the hydraulic sensor. After the water level in the water storage tank 12 drops below the hydraulic sensor, the hydraulic sensor cannot detect the water pressure, and the alarm emits an alarm to remind the staff to replenish the water source in the water storage tank 12 in time.

[0066] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the concept of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A dust suppression device for a coal conveyor belt, characterized in that: include: A bracket assembly, comprising two base frames, at least two support frames and a plurality of frames, for being mounted on both sides of the coal conveying device, wherein at least two of the support frames are detachably mounted on both ends of the base frame in the length direction, and a plurality of the frames are slidably mounted on the base frame and are located between the two support frames; a plurality of spray assemblies, respectively disposed on the plurality of support frames, the spray assemblies being used to spray water mist toward the coal conveying device; and, A foldable cover, at least a detachable cover is arranged on the top of the two support frames and the multiple frames on the paper.

2. The dust suppression device for a coal conveyor belt according to claim 1, characterized in that: The bracket assembly also includes: A plurality of connection blocks are respectively arranged on the plurality of the frames, and the plurality of connection blocks are all slidably connected in the base frame; A plurality of pulleys are rotatably connected to the plurality of connecting blocks respectively, and the pulleys roll along the length extension direction of the base frame, so that when the pulleys drive the connecting blocks to move, the frame is driven to move toward one of the supporting frames.

3. The dust suppression device for a coal conveyor belt according to claim 2, characterized in that: The bottom frame is provided with a limiting groove for the pulley to roll so as to limit the rolling direction of the pulley, and a limiting rod penetrating through a plurality of the connecting blocks is arranged in the limiting groove so as to limit the pulley from being separated from the limiting groove.

4. The dust suppression device for a coal conveyor belt according to claim 3, characterized in that: An elastic member is arranged in the limit rod, and the elastic member extends or shortens toward the rolling direction of the pulley, and a limit plate slidably connected to the limit rod is arranged on the elastic member, and an intercepting rod is arranged on the side of the limit plate away from the elastic member, and one end of the intercepting rod away from the limit plate contacts the inner cavity wall of the limit groove.

5. The dust suppression device for a coal conveyor belt according to claim 1, characterized in that: A plurality of the support frames are each provided with a connection assembly for mounting the folding cover.

6. The dust suppression device for a coal conveyor belt according to claim 5, characterized in that: The connection component comprises: A plurality of threaded rods are arranged on a side of the support frame facing the folding cover, and the threaded rods penetrate the folding cover to limit the installation position of the folding cover; A plurality of fixing blocks are respectively threadedly connected to the outer sides of the plurality of threaded rods to limit the folding cover from being separated from the support frame.

7. The dust suppression device for a coal conveyor belt according to claim 6, characterized in that: The folding cover is provided with a positioning hole for the threaded rod to penetrate, and the length and width of the fixing block on the side facing the folding cover are greater than the diameter of the positioning hole to limit the fixing block from entering the positioning hole.

8. The dust suppression device for a coal conveyor belt according to claim 1, characterized in that: The two base frames are arranged parallel to each other.

9. The dust suppression device for a coal conveyor belt according to claim 1, characterized in that: The spray assembly comprises: A water supply tank is arranged on the support frame; A plurality of atomizing nozzles are all arranged on the water supply box, and the atomizing nozzles spray water mist toward the coal conveying device.

10. The dust suppression device for a coal conveyor belt according to claim 9, characterized in that: The water supply tank is connected with a water supply pipe, one end of the water supply pipe away from the water supply tank is connected with a water pump, the water pump is connected with a water pumping pipe, and one end of the water pumping pipe away from the water pump is connected with a water storage tank.

Images