Comprehensive dust treatment device for coal conveying system of power plant

Abstract

The utility model is suitable for the technical field of power plant coal conveying system dust treatment, and provides a power plant coal conveying system dust comprehensive treatment device which comprises a coal conveying belt conveyor, a dust remover, an air compressor, a water source pipe, a dry fog dust suppression and removal air-water distribution cabinet, a water pipe box stretching across the coal conveying belt conveyor through a supporting frame and a mounting frame, and a dust fog collecting cover. A main water pipe and a branch pipe which are communicated with each other are arranged in the water pipe tank; an ultrasonic atomization generator is mounted at the bottom output end of the branch pipe. Through a multi-stage linkage mechanism of the pulse bag-type dust collector, ultrasonic dry fog dust suppression and the like, comprehensive and efficient treatment of dust of the coal conveying system is realized. A high-pressure water-gas mixture is used for pushing the impeller to rotate, the wind wheel is driven to form a negative pressure area, dust and water mist are effectively adsorbed, extra driving equipment is not needed, and the operation cost is reduced. The problem of water mist pollution caused by a traditional dust falling method is solved, and the working environment is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to power plant coal conveying system dust control technical field, more specifically, it relates to a kind of power plant coal conveying system dust comprehensive control device. BACKGROUND

[0002] The source of dust on the conveying belt during the operation of power plant coal conveying system mainly has two aspects: one is the dust caused by impact when coal falls to the belt and the blast effect of coal crusher;Two is dust effect, that is, the high-speed running belt will adsorb dust, and output dust to a long distance.The above dust pollution will accelerate the wear of belt equipment, shorten the service life of equipment, and endanger personnel health.

[0003] The traditional method of controlling dust on the belt mainly relies on single dust removal equipment: such as old-fashioned water hammer multi-tube dust collector, such equipment has low dust removal efficiency, high failure rate, and cannot solve the problem of dust on high-speed belt;Such as bag dust collector, the dust collector can only handle local dust, cannot cover the whole process, and is invalid for belt adsorption dust;Such as ultrasonic atomization dust fall, the equipment can achieve certain dust fall effect, but in actual use process, a large amount of water mist diffuses into workshop, so that the whole workshop becomes humid, improves dust pollution, and causes water mist pollution at the same time.

[0004] Therefore, it is urgent to provide a comprehensive control device capable of controlling dust on the belt. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a device for comprehensive control of dust in power plant coal conveying system by pulse bag dust collector, recovery, ultrasonic dry mist dust suppression and other multi-level linkage mechanisms.

[0006] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a power plant coal conveying system dust comprehensive treatment device, including dust mist collecting cover, is located the top of coal conveying belt conveyor, atomization dust removal mechanism, including the main water pipe, branch and ultrasonic wave atomization generator that communicate in proper order, the main water pipe is fixed in the top of dust mist collecting cover, the branch is from top to bottom and is arranged in the dust mist collecting cover, the ultrasonic wave atomization generator is located in the dust mist collecting cover.

[0008] As a preferred technical scheme of the utility model, the branch and the ultrasonic wave atomization generator are provided with multiple, multiple first curved sections, horizontal sections and second curved sections are connected with the main water pipe, multiple second curved sections are arranged in the dust mist collecting cover and are connected with multiple ultrasonic wave atomization generators, multiple horizontal sections are provided with expansion cavities, the drive shaft is arranged in multiple horizontal sections, and the impeller is arranged in the expansion cavity.

[0009] As a preferred technical scheme of the utility model, the dust mist collecting cover is fixed with the tensioning mechanism matched with the transmission belt, the tensioning mechanism includes the adjusting frame, the sliding block, the screw rod and the tensioning wheel, the adjusting frame is fixed to the inner wall of the dust mist collecting cover, the sliding block is slidably installed in the inner cavity of the adjusting frame, the top of the sliding block is connected with the screw rod, the upper end of the screw rod is threadedly connected with the top surface of the adjusting frame and penetrates the adjusting frame, and the tensioning wheel is connected to the sliding block and can abut against the transmission belt.

[0010] As a preferred technical scheme of the utility model, the side wall of the adjusting frame is provided with a linear guide groove, the side wall of the sliding block is provided with a guide fin matched with the linear guide groove, and the guide fin is arranged in the linear guide groove to guide the sliding block when the sliding block slides in the adjusting frame.

[0011] As a preferred technical scheme of the utility model, the top of the dust mist collecting cover is provided with a water pipe box, both ends of the main water pipe are arranged in the two side walls of the water pipe box respectively, and part of the branch is arranged in the water pipe box.

[0012] As a preferred technical scheme of the utility model, the power plant coal conveying system dust comprehensive treatment device further includes a gas-water distribution mechanism, the gas-water distribution mechanism is connected to the main water pipe, the gas-water distribution mechanism includes: a dry fog dust suppression and dust removal gas-water distribution cabinet, in communication with the main water pipe, a gas conveying assembly including an air compressor and a gas storage tank, the gas inlet end of the gas storage tank is in communication with the air compressor, the gas outlet end of the gas storage tank is connected with the air input end of the dry fog dust suppression and dust removal gas-water distribution cabinet, a water conveying assembly including a water conveying pipe and a water source filter, one end of the water source filter is connected with a water source through the water conveying pipe, the other end of the water source filter is connected to the water input end of the dry fog dust suppression and dust removal gas-water distribution cabinet through the water conveying pipe.

[0013] As a preferred technical scheme of the utility model, the gas storage tank is provided with multiple, the multiple gas storage tanks are in sequence communication, the water source filter is provided with multiple, the multiple water source filters are in sequence connection.

[0014] As a preferred technical scheme of the utility model, the power plant coal conveying system dust comprehensive treatment device further includes a dust remover, the dust remover is connected with the air suction pipe through a pipeline.

[0015] As a preferred technical scheme of the utility model, the power plant coal conveying system dust comprehensive treatment device further includes a mounting mechanism, the mounting mechanism is mounted on the coal conveying belt conveyor, and the mounting mechanism is provided with the dust fog collecting cover, the mounting mechanism includes a support frame and a mounting frame, the support frame is fixed on both sides of the coal conveying belt conveyor, the mounting frame is rotatably connected to the support frame, and the water pipe box is further fixed on the mounting frame.

[0016] As a preferred technical scheme of the utility model, the support frame is provided with an axle hole, the mounting frame is fixed with a rotating shaft, the rotating shaft is movably arranged in the axle hole, arc-shaped guide grooves are formed in both ends of the top of the support frame, threaded adjusting rods matched with the arc-shaped guide grooves are fixed at both ends of the mounting frame, and a fastening nut abutting against the support frame is threadedly connected to the threaded adjusting rod.

[0017] The utility model has the advantages of:

[0018] 1. The utility model realizes comprehensive treatment of the power plant coal conveying system dust through the pulse cloth bag dust collector, the multi-stage linkage mechanism such as recovery and ultrasonic dry fog dust suppression, solves the dust problem caused by the fall impact and the blast effect of the coal crusher in the coal conveying process, effectively treats the phenomenon of high-speed belt dust, suppresses the dust flying from the source, and greatly improves the working environment.

[0019] 2. The utility model discloses a high pressure, high flow rate water gas mixture in branch pipe promotes impeller rotation, and then drives the wind wheel to form a negative pressure area, adsorbs and collects dust and water mist, does not need to add driving equipment additionally, and remarkably reduces equipment cost and power consumption.

[0020] 3. The utility model discloses a dust and mist collecting cover and the negative pressure area formed by the wind wheel, effectively adsorbs the water mist and fly ash diffused to the surrounding environment, avoids the scattering of water mist and dust, greatly improves the working environment of workshop, and prevents the occurrence of secondary pollution. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the structure schematic drawing of a power plant coal conveying system dust comprehensive treatment device of the utility model.

[0022] Figure 2 It is the sectional structure schematic drawing of the front view of the utility model.

[0023] Figure 3 It is the sectional structure schematic drawing of the left view of the utility model.

[0024] Figure 4 It is the sectional structure schematic drawing of the left view of the utility model. Figure 1 It is the sectional structure schematic drawing of the left view of the utility model.

[0025] Figure 5 It is the sectional structure schematic drawing of the left view of the utility model.

[0026] Figure 6 It is the sectional structure schematic drawing of the left view of the utility model. Figure 5 It is the sectional structure schematic drawing of the left view of the utility model.

[0027] Figure 7 It is the sectional structure schematic drawing of the left view of the utility model.

[0028] Figure 8 It is the sectional structure schematic drawing of the left view of the utility model.

[0029] Figure 9 It is the sectional structure schematic drawing of the left view of the utility model.

[0030] Figure 10 It is the sectional structure schematic drawing of the left view of the utility model.

[0031] In the drawing, 1, support frame;101, arc guide groove;

[0032] 2, mounting frame;201, rotating shaft;202, threaded adjusting rod;203, fastening nut;

[0033] 3, water pipe box;4, dust and mist collecting cover;5, main water pipe;

[0034] 6, branch pipe; 601, expansion chamber; 602, drive shaft; 603, impeller;

[0035] 7, ultrasonic atomization generator; 8, transmission shaft; 9, wind wheel; 10, exhaust pipe; 11, transmission belt;

[0036] 12, tensioning mechanism; 1201, adjusting frame; 1202, sliding block; 1203, screw rod; 1204, tensioning wheel. DETAILED DESCRIPTION

[0037] The principles and features of the present application are described below in connection with the accompanying drawings, in which the examples are used to explain the present application and are not intended to limit the scope of the present application. In the following paragraphs, the present application is described in more detail with reference to the accompanying drawings. It should be noted that the drawings are very simplified and use non-precise proportions, only to facilitate and clarify the purpose of assisting the description of the embodiments of the present application.

[0038] It should be noted that when a component is referred to as being "fixed" to another component, it can be directly on the other component or there can be a middle component. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or there can be a middle component. When a component is referred to as being "provided" to another component, it can be directly provided on the other component or there can be a middle component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0040] Example one:

[0041] Please refer to Figures 1-10 The technical solutions of the present application are provided as follows:

[0042] The power plant coal conveying system dust comprehensive treatment device comprises a dust mist collecting cover 4, a atomizing dust removal mechanism and an exhaust dust removal mechanism. The dust mist collecting cover 4 is arranged above the coal conveying belt machine. The atomizing dust removal mechanism comprises a main water pipe 5, a branch pipe 6 and an ultrasonic atomizing generator 7 which are sequentially connected. The main water pipe 5 is fixed above the dust mist collecting cover 4, the branch pipe 6 is arranged in the dust mist collecting cover 4 from top to bottom, and the ultrasonic atomizing generator 7 is arranged in the dust mist collecting cover 4. The exhaust dust removal mechanism comprises a impeller 603, a driving shaft 602, a transmission shaft 8, a transmission belt 11, a wind wheel 9 and an exhaust pipe 10 which are sequentially connected. The driving shaft 602 is arranged in the branch pipe 6, the impeller 603 is arranged on the driving shaft 602 and located in the branch pipe 6, the transmission shaft 8 is coaxially fixedly connected to the end of the driving shaft 602, one end of the transmission belt 11 is sleeved on the transmission shaft 8, the other end of the transmission belt 11 is sleeved on the power shaft of the wind wheel 9 which is fixed on the inner top wall of the dust mist collecting cover 4, and the exhaust pipe 10 is connected to the side wall of the dust mist collecting cover 4 and communicates with the inner cavity of the dust mist collecting cover 4.

[0043] In operation, the atomizing dust removal mechanism can treat the fly ash on the coal conveying belt machine by water mist. Specifically, the high-pressure and high-flow water-gas mixture is input into the main water pipe 5, the water-gas mixture is sprayed and diffused into the surrounding environment in the form of water mist through the main water pipe 5, the branch pipe 6 and the ultrasonic atomizing generator 7, the water mist is combined with the fly ash on the coal conveying belt machine, micron-level dry mist particles are formed by using high-pressure gas and water mixed atomization, and the dust carried by the high-speed belt is adsorbed and increased in weight and then falls back to the surface of the belt, thereby suppressing dust flying from the source.

[0044] At the same time, the exhaust dust removal mechanism can treat the fly ash above the coal conveying belt machine by negative pressure adsorbent exhaust. Specifically, the high-pressure and high-flow water-gas mixture of the branch pipe 6 can drive the impeller 603 to rotate in the flow process, thereby driving the driving shaft 602 to rotate, the driving shaft 602 drives the transmission shaft 8 to rotate and output power when rotating, the output power drives the wind wheel 9 to rotate through the transmission belt 11, the wind wheel 9 forms negative pressure zones at both ends of the dust mist collecting cover 4 when rotating, and the water mist, fly ash and mixture of water mist and fly ash diffused into the surrounding environment are adsorbed, and the mixture is discharged through the exhaust pipe 10 arranged on the side wall of the dust mist collecting cover 4, thereby avoiding a large amount of water mist, fly ash and dust from scattering to the external environment of the coal conveying belt machine, and greatly improving the problem of water pollution in the workshop caused by the existing ultrasonic atomizing dust removal.

[0045] It is worth pointing out that the embodiment is to arrange the impeller 603 on the drive shaft 602 and in the branch pipe 6, so that the high-pressure and high-flow water-air mixture in the branch pipe 6 can drive the impeller 603 to rotate. That is, the structure of the impeller 603 arranged on the drive shaft 602 and in the branch pipe 6 can be used as the associated structure of the atomization dust removal mechanism and the exhaust air dust removal mechanism, so that the treatment device becomes a two-way combined device. In addition, the high-pressure and high-flow water-air mixture does not need to add additional driving equipment when driving the impeller 603 to rotate, which reduces the cost of the equipment and the consumption of electric energy.

[0046] Embodiment two:

[0047] On the basis of the foregoing embodiment, the branch pipe 6 and the ultrasonic atomization generator 7 are both provided in plurality, the plurality of branch pipes 6 each include a first curved section, a horizontal section, and a second curved section, the plurality of first curved sections are connected with the main water pipe 5, the plurality of second curved sections are arranged in the dust mist collecting cover 4 and connected with the plurality of ultrasonic atomization generators 7, and the plurality of horizontal sections are each provided with an expansion chamber 601, the drive shaft 602 is arranged in the plurality of horizontal sections, and the impeller 603 is arranged in the expansion chamber 601.

[0048] By arranging the branch pipe 6 to include the first curved section, the horizontal section, and the second curved section, the branch pipe 6 can meet the connection requirements with the main water pipe 5 and the ultrasonic atomization generator 7, the arrangement requirements of the drive shaft 602, and the driving requirements of the high-pressure and high-flow water-air mixture on the impeller 603, so as to ensure that the impeller 603 obtains sufficient power.

[0049] Embodiment three:

[0050] On the basis of the foregoing embodiment, as shown in Figure 1 、 Figure 4 The dust mist collecting cover 4 is fixed with a tensioning mechanism 12 matched with the transmission belt 11. The tensioning mechanism 12 includes an adjusting frame 1201, a sliding block 1202, a screw rod 1203, and a tensioning wheel 1204; the adjusting frame 1201 is fixed to the inner wall of the dust mist collecting cover 4, the sliding block 1202 is slidingly installed in the inner cavity of the adjusting frame 1201, the top of the sliding block 1202 is connected with the screw rod 1203, the upper end of the screw rod 1203 is threadedly connected with the top surface of the adjusting frame 1201 and penetrates out of the adjusting frame 1201, and the tensioning wheel 1204 is connected to the sliding block 1202 and can abut against the transmission belt 11.

[0051] When it is needed to rotate the adjusting tension pulley 1204 upward to reduce the tension of the transmission belt 11, the screw rod 1203 is rotated to move upward, the upward movement of the screw rod 1203 drives the sliding block 1202 connected with the screw rod 1203 to slide upward in the adjusting frame 1201, the guiding flaps on the side wall of the sliding block 1202 slide upward in the linear guide groove on the side wall of the adjusting frame 1201, which ensures the linear upward movement of the sliding block 1202 without deviation, with the upward movement of the sliding block 1202, the adjusting tension pulley 1204 also moves upward and loosens the pressing of the transmission belt 11, which reduces the tension of the transmission belt 11, but still maintains enough friction to ensure smooth transmission.

[0052] When it is needed to rotate the adjusting tension pulley 1204 downward to increase the tension of the transmission belt 11, the screw rod 1203 is rotated reversely to move downward, the downward movement of the screw rod 1203 drives the sliding block 1202 connected with the screw rod 1203 to slide downward in the adjusting frame 1201, the guiding flaps on the side wall of the sliding block 1202 slide downward in the linear guide groove on the side wall of the adjusting frame 1201, which ensures the linear downward movement of the sliding block 1202 without deviation, with the downward movement of the sliding block 1202, the adjusting tension pulley 1204 also moves downward and presses the transmission belt 11 more tightly, which increases the tension of the transmission belt 11 and ensures smooth transmission.

[0053] The adjusting tension mechanism 12 can ensure the linear upward and downward movement of the sliding block 1202 in the adjusting frame 1201, and further ensure the stable pressing and loosening of the adjusting tension pulley 1204 to the transmission belt 11. Not only the stability of the transmission connection between the transmission belt 11, the transmission shaft 8 and the wind wheel 9 is improved, but also the probability of slipping is effectively reduced, which ensures the stable operation of the dust comprehensive treatment device of the coal conveying system of the power plant.

[0054] Further, the side wall of the adjusting frame 1201 is provided with a linear guide groove, and the side wall of the sliding block 1202 is provided with a guiding flap matched with the linear guide groove, the guiding flap is arranged in the linear guide groove to guide the sliding block 1202 when the sliding block 1202 slides in the adjusting frame 1201. The linear guide groove and the guiding flap can ensure the linear upward and downward movement of the sliding block 1202 in the adjusting frame 1201, and ensure the stability of the transmission belt 11 during adjustment.

[0055] Embodiment Four:

[0056] On the basis of the foregoing embodiments, the top of the dust and mist collecting cover 4 is provided with a water pipe box 3, and the two ends of the main water pipe 5 are respectively arranged in the two side walls of the water pipe box 3, and part of the branch pipe 6 is arranged in the water pipe box 3.

[0057] The water pipe box 3 can be used as a fixing component of the main water pipe 5, which avoids the movement of the main water pipe 5 due to the impact of the high-pressure and high-flow water and gas mixture inside, ensures the constancy of the position of the main water pipe 5, and further ensures the reliability of the connection between the main water pipe 5, the branch pipe 6 and the ultrasonic atomizing generator 7.

[0058] Embodiment five:

[0059] On the basis of the foregoing embodiment, the air-water distribution mechanism is connected to the main water pipe 5; the air-water distribution mechanism comprises a dry fog dust suppression and dust removal air-water distribution cabinet, a gas conveying assembly and a water conveying assembly. The dry fog dust suppression and dust removal air-water distribution cabinet is in communication with the main water pipe 5. The gas conveying assembly comprises an air compressor and gas storage tanks, the gas inlet ends of the gas storage tanks are in communication with the air compressor, the gas storage tanks are provided in plurality and are in sequence communication, and the gas outlet ends of the gas storage tanks are connected to the air input end of the dry fog dust suppression and dust removal air-water distribution cabinet. The water conveying assembly comprises water conveying pipes and water source filters, one end of the water source filters is connected to a water source through the water conveying pipes, the other end of the water source filters is connected to the water input end of the dry fog dust suppression and dust removal air-water distribution cabinet through the water conveying pipes, and the water source filters are provided in plurality and are in sequence connection.

[0060] In this embodiment, the compressor can compress air, the compressed air can be conveyed to the gas storage tanks for storage, and the air in the gas storage tanks can provide air source for the dry fog dust suppression and dust removal air-water distribution cabinet. At the same time, the water source can reach the water source filters through the water conveying pipes, the water source filters can perform multi-stage filtration on impurities in the water, and provide clean water for the dry fog dust suppression and dust removal air-water distribution cabinet. After obtaining clean water and compressed air, the dry fog dust suppression and dust removal air-water distribution cabinet can mix the clean water and the compressed air to form a high-pressure and high-flow-rate water-air mixture, and convey the high-pressure and high-flow-rate water-air mixture to the main water pipe 5.

[0061] Preferably, the water source filter is a multi-core backflushing filter, which ensures the cleanliness of the water, reduces the equipment failure rate, and further reduces the maintenance cost.

[0062] Embodiment six:

[0063] On the basis of the foregoing embodiment, the dust comprehensive treatment device of the coal conveying system of the power plant further comprises a dust remover, and the dust remover is connected to the air suction pipe 10 through a pipeline. Preferably, the dust remover is a pulse bag dust remover.

[0064] The air suction pipe 10 can convey the water mist, the fly ash and the mixture of the water mist and the fly ash extracted from the inner cavity of the dust mist collecting cover 4 to the dust remover for treatment by the dust remover, so as to avoid the water mist, the fly ash and the mixture of the water mist and the fly ash from floating in the coal conveying workshop.

[0065] Embodiment seven:

[0066] On the basis of the foregoing embodiment, as Figure 1 , Figure 3 , Figure 4 , Figure 5As shown, the dust comprehensive treatment device of the coal conveying system of the power plant further comprises a mounting mechanism, which is mounted on the coal conveying belt conveyor.

[0067] The support frame 1 is provided with an axle hole, and the mounting frame 2 is fixed with a rotating shaft 201, which is movably arranged in the axle hole.

[0068] In the embodiment, the mounting frame 2, on which the water pipe box 3 and the dust mist collecting cover 4 are mounted, can rotate between the two support frames 1 through the cooperation of the rotating shaft 201 and the axle hole.

[0069] The support frame 1 and the mounting frame 2 are both welded from channel steel and I-beam, which are easy to obtain and can reduce the manufacturing cost.

[0070] The above is only a specific embodiment of the present application, but the technical features of the present application are not limited to this. Any simple change, equivalent replacement or modification made on the basis of the present application to solve the same technical problem and achieve the same technical effect is also covered by the protection scope of the present application.

Claims

1. A dust comprehensive treatment device for coal conveying system of power plant, characterized in that, The utility model relates to a coal belt conveyor dust removal device, including: Dust mist collecting cover (4) is established in the upper portion of coal belt conveyor; Atomization dust removal mechanism, including main water pipe (5) in turn intercommunication, branch pipe (6) and ultrasonic atomization generator (7), main water pipe (5) is fixed in the upper portion of dust mist collecting cover (4), branch pipe (6) is from top to bottom and is arranged in dust mist collecting cover (4), ultrasonic atomization generator (7) is arranged in dust mist collecting cover (4); Exhaust dust removal mechanism, including impeller (603) in turn transmission connection, drive shaft (602), transmission shaft (8), transmission belt (11), wind wheel (9) and exhaust pipe (10), drive shaft (602) is arranged in branch pipe (6), impeller (603) is arranged on drive shaft (602) and is located in branch pipe (6), transmission shaft (8) is coaxial fixed connection in the end of drive shaft (602), one end of transmission belt (11) is sleeved in transmission shaft (8), the other end of transmission belt (11) is sleeved in the power shaft of wind wheel (9) fixed in the inner top wall of dust mist collecting cover (4), exhaust pipe (10) is connected in the side wall of dust mist collecting cover (4) and is communicated with the inner chamber of dust mist collecting cover (4).

2. The dust comprehensive treatment device of coal conveying system of power plant according to claim 1, characterized in that, The branch pipe (6) and the ultrasonic atomization generator (7) are both provided with multiple; Multiple branch pipes (6) all include first curved section, horizontal section and second curved section, multiple first curved sections are connected with main water pipe (5), multiple second curved sections are arranged in dust mist collecting cover (4) and are connected with multiple ultrasonic atomization generators (7), multiple horizontal sections are all provided with expansion chamber (601), drive shaft (602) is arranged in multiple horizontal sections, and impeller (603) is arranged in expansion chamber (601).

3. The dust comprehensive treatment device of coal conveying system of power plant according to claim 1, characterized in that, The dust mist collecting cover (4) is fixed with a tensioning mechanism (12) cooperating with the transmission belt (11); The tensioning mechanism (12) includes an adjusting frame (1201), a sliding block (1202), a screw rod (1203), and a tensioning wheel (1204). The adjusting frame (1201) is fixed to the inner wall of the dust mist collecting cover (4). The sliding block (1202) is slidingly installed in the inner cavity of the adjusting frame (1201). The top of the sliding block (1202) is connected with the screw rod (1203). The upper end of the screw rod (1203) is threadedly connected with the top surface of the adjusting frame (1201) and penetrates out of the adjusting frame (1201). The tensioning wheel (1204) is connected to the sliding block (1202) and can abut against the transmission belt (11).

4. The dust comprehensive control device of coal conveying system of power plant according to claim 3, characterized in that, A linear guide groove is arranged on the side wall of the adjusting frame (1201), and a guide fin is arranged on the side wall of the sliding block (1202) and cooperates with the linear guide groove. The guide fin is arranged in the linear guide groove to guide the sliding block (1202) when sliding in the adjusting frame (1201).

5. The dust comprehensive control device of coal conveying system of power plant according to claim 1, characterized in that, The top of the dust mist collecting cover (4) is provided with a water pipe box (3), both ends of the main water pipe (5) are respectively provided in two side walls of the water pipe box (3), and part of the branch pipe (6) is contained in the water pipe box (3).

6. The dust comprehensive control device of coal conveying system of power plant according to any one of claims 1 to 5, characterized in that, Further comprising a gas-water distribution mechanism connected to the main water pipe (5); the gas-water distribution mechanism comprises: A dry mist dust suppression and removal gas-water distribution cabinet in communication with the main water pipe (5); A gas delivery assembly comprising an air compressor and a gas storage tank, the gas inlet end of the gas storage tank being in communication with the air compressor, and the gas outlet end of the gas storage tank being connected to the air input end of the dry mist dust suppression and removal gas-water distribution cabinet; A water delivery assembly comprising a water delivery pipe and a water source filter, one end of the water source filter being connected to a water source through the water delivery pipe, and the other end of the water source filter being connected to the water input end of the dry mist dust suppression and removal gas-water distribution cabinet through the water delivery pipe.

7. The dust comprehensive treatment device of coal conveying system of power plant according to claim 6, characterized in that, A plurality of gas storage tanks are provided, and the plurality of gas storage tanks are sequentially communicated. A plurality of water source filters are provided, and the plurality of water source filters are sequentially connected.

8. The dust comprehensive treatment device of coal conveying system of power plant according to any one of claims 1 to 5, characterized in that: Further comprising a dust collector connected to the air suction pipe (10) through a pipeline.

9. The dust comprehensive treatment device of coal conveying system of power plant according to claim 5, characterized in that: Further comprising a mounting mechanism, and the dust mist collecting cover (4) is mounted on the mounting mechanism; The mounting mechanism comprises a support frame (1) and a mounting frame (2), the support frame (1) is fixed on both sides of the coal belt conveyor, the mounting frame (2) is rotatably connected to the support frame (1), and the water pipe box (3) is further fixed on the mounting frame (2).

10. The dust comprehensive treatment device of coal conveying system of power plant according to claim 9, characterized in that: An axle hole is formed in the support frame (1), and an axle (201) is fixed on the mounting frame (2) and movably penetrates the axle hole; Arc-shaped guide grooves (101) are formed at both ends of the top of the support frame (1), threaded adjusting rods (202) matched with the arc-shaped guide grooves (101) are fixed at both ends of the mounting frame (2), and a fastening nut (203) abutting against the support frame (1) is threadedly connected to the threaded adjusting rod (202).

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