Automatic cleaning device for coal-fired power plant conveyor

Abstract

The utility model discloses an automatic cleaning device for a coal-fired power plant conveyor, which comprises a conveyor body, the conveyor body comprises a frame and a conveyor belt mounted on the frame, an inclined scraper is arranged on the frame and positioned below the conveyor belt, and one end of the inclined scraper is in contact with the conveyor belt; according to the coal slime crust crushing device, coal slime crust on the conveying belt is pre-crushed through the tooth roller, and adhesion of coal slime and residual coal slime crust on the inclined scraper is reduced in cooperation with the inclined scraper provided with the air cavity and the air holes; the tooth roller can be matched with the running state of the conveying belt. The coal slime collecting device is combined to directionally collect crushed and scraped coal slime and coal slime crusts, so that the coal-fired power plant conveyor is cleaned; the problems that a common cleaning device cannot remove coal slime crusts and the coal slime adheres to the cleaning device are solved, equipment maintenance caused by coal slime residues is reduced, stable operation of a conveyor is guaranteed, and cleaning practicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal fired power plant conveying equipment cleaning technical field especially relates to a kind of for coal fired power plant conveyor automatic cleaning device. BACKGROUND

[0002] In coal fired power plant, belt conveyor is the core equipment of raw coal conveying, and its continuous and stable operation is directly related to the capacity release and production safety of power plant;During the conveying of raw coal, slime is easy to adhere to the surface of the conveyor belt and gradually form crust;If these slime and crust are not cleaned in time, it can cause the deviation of the conveyor belt, the accumulation of slime on the roller, and the excessive wear of the equipment, which seriously restricts the conveying efficiency and increases the maintenance cost of the equipment, so the automatic cleaning device of the conveyor puts forward the technical requirement of high efficiency and reliability;

[0003] At present, the cleaning device of coal fired power plant conveyor mostly adopts the structure design of single scraper or brush, which can realize basic cleaning, but has the following shortcomings in actual application:

[0004] The existing device lacks effective breaking structure for slime crust, and the scraper or brush is difficult to completely remove the hard slime crust, resulting in long-term residue of the crust;On the other hand, viscous slime is easy to adhere to the surface of the cleaning component, which seriously reduces the cleaning efficiency;And the cleaning component needs to be adapted to the conveyor belt to avoid incomplete cleaning due to insufficient contact height;

[0005] Therefore, it is necessary to design an automatic cleaning device for coal fired power plant conveyor. CONTENT OF UTILITY MODEL

[0006] The utility model aims at providing an automatic cleaning device for coal fired power plant conveyor to solve the problems of existing coal fired power plant conveyor cleaning device, such as difficult to effectively break slime crust, viscous slime easy to adhere to the surface of cleaning component, and insufficient adaptability of cleaning component due to fixed installation.

[0007] In order to solve the above technical problems, the utility model provides the following technical scheme: an automatic cleaning device for coal fired power plant conveyor, comprising a conveyor body, the conveyor body comprising a rack and a conveyor belt installed on the rack, an inclined scraper is arranged on the rack, the inclined scraper is located below the position of the conveyor belt, and one end is in contact with the conveyor belt;

[0008] An air cavity is arranged in the inclined scraper, and an air hole is arranged on one side of the inclined scraper relative to the conveyor belt, the air hole is in communication with the air cavity, and the air cavity is connected with external air compression equipment through air pipe, after the compressed air provided by the external air compression equipment enters the air cavity, it is sprayed out through the air hole, which can reduce the direct contact between slime and inclined scraper, avoid the adhesion of slime, and assist the separation of scraped slime from inclined scraper.

[0009] The rack is further provided with a tooth roller which is movable up and down and is driven to rotate by a driving motor, the tooth roller is installed below the position of the conveying belt and is located between the inclined scraper and the discharging end of the conveying belt;

[0010] The driving motor is arranged on one side of the rack and is driven to connect the tooth roller through a driving mechanism.

[0011] As a further technical scheme of the utility model, the air hole is arranged at the position close to the conveying belt of the inclined scraper.

[0012] As a further technical scheme of the utility model, the tooth roller is movable up and down, can be adapted to the conveying belt, and can also adjust the spacing with the conveying belt according to the thickness of the slime crust, so as to guarantee the crushing effect, and the up and down movement of the tooth roller is realized through the following structure:

[0013] The adjusting plate is fixedly connected with a guide rod, and a screw rod is screwed on the adjusting plate;

[0014] The rack is further provided with a mounting frame, the tooth roller is rotatably arranged between the mounting frames on the two sides, the mounting frames are screwed on the screw rod and are in sliding cooperation with the guide rod.

[0015] As a further technical scheme of the utility model, the outer periphery of the tooth roller is provided with a crushing tooth, the crushing tooth increases the contact area with the slime crust, effectively realizes crushing through rotation, the shape design can prevent the slime from accumulating on the tooth roller, the outer periphery of the crushing tooth of the tooth roller can pre-crush the slime crust on the surface of the conveying belt under the rotation of the tooth roller driven by the driving motor, so that the crusty slime is broken, and the subsequent inclined scraper can scrape off the slime.

[0016] As a further technical scheme of the utility model, the driving mechanism comprises a first belt pulley and a second belt pulley which are rotatably connected to the mounting frame, and the first belt pulley and the second belt pulley are connected through a transmission belt;

[0017] The output end of the driving motor is drivingly connected to the first belt pulley, one end of the tooth roller close to the driving motor is fixedly connected to the second belt pulley, the driving motor transmits power to the tooth roller stably through the first belt pulley, the second belt pulley and the transmission belt, so that the tooth roller keeps a stable rotating speed and guarantees the pre-crushing effect.

[0018] As a further technical scheme of the utility model, the utility model further comprises a slime collecting device which is arranged below the positions of the tooth roller and the inclined scraper, the slime collecting device collects the slime crushed by the tooth roller and scraped off by the inclined scraper, avoids the scattering of the slime below the rack, realizes directional collection, is convenient for subsequent treatment, and keeps the environment around the equipment clean.

[0019] The utility model provides a kind of for coal-fired power plant conveyor automatic cleaning device, its advantage is at:by the gear roller that can be moved up and down on rack and is rotated by driving motor drive, coal slime crust on conveying belt can be pre-crushed, cooperation is provided with the inclined scraper of air cavity and air hole, utilize the airflow of air hole spouts, when the inclined scraper removes coal slime and residual coal slime crust on conveying belt, reduce the adhesion of coal slime and residual coal slime crust on inclined scraper;The up-and-down movement design of gear roller can adapt the operating state of conveying belt;Again in combination with coal slime collecting device, the coal slime and coal slime crust scraped off are collected directionally, realize the cleaning of coal-fired power plant conveyor;

[0020] Solve the problem that common cleaning device cannot remove coal slime crust and coal slime adheres cleaning device, reduce the equipment maintenance caused by coal slime residue, guarantee the stable operation of conveyor, improve the practicality of cleaning. DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in embodiment or prior art description, obviously, the drawing in the following description is some embodiments of the utility model, for ordinary skilled person in the art, without creative labor, other drawings can also be obtained according to these drawings.

[0022] Figure 1 It is the overall structure schematic diagram of the utility model;

[0023] Figure 2 It is the side view structure schematic diagram of the utility model;

[0024] Figure 3 It is the position schematic diagram of transmission belt in the utility model;

[0025] Figure 4 It is the section view structure schematic diagram of inclined scraper in the utility model.

[0026] In the drawing: 1, conveyor body;11, rack;12, conveying belt;2, inclined scraper;21, air hole;22, air pipe;3, gear roller;31, broken tooth;4, adjusting plate;41, guide rod;42, screw;5, mounting frame;51, driving motor;52, first pulley;53, second pulley;54, transmission belt;7, coal slime collecting device. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0028] In the description of the utility model, it is necessary to explain that, unless there is explicit provision and limitation, the terms "mount", "connect", "connection" should be understood broadly, for example, it can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be the communication inside two elements. For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances.

[0029] Please refer to the drawings of the utility model Figure 1 - the drawings of the utility model Figure 4 An embodiment provided by the utility model: a kind of automatic cleaning device for coal-fired power plant conveyor, including conveyor body 1, conveyor body 1 includes rack 11 and the conveyor belt 12 of being installed in rack 11, rack 11 is provided with inclined scraper 2, inclined scraper 2 is located below the position of conveyor belt 12, and one end is in contact with conveyor belt 12;

[0030] Gas cavity is arranged in inclined scraper 2, gas hole 21 is arranged on the side of inclined scraper 2 relative to conveyor belt 12, gas hole 21 is arranged at the position of inclined scraper 2 close to conveyor belt 12, gas hole 21 is communicated with gas cavity, gas cavity is connected with external air compression equipment by air pipe 22, compressed air provided by external air compression equipment enters gas cavity, and is sprayed out through gas hole 21, which can reduce the direct contact of coal slime and inclined scraper 2, avoid coal slime adhesion, and simultaneously assist the coal slime after scraping to separate from inclined scraper 2;

[0031] Rack 11 is also provided with tooth roller 3 that can move up and down and is driven to rotate by drive motor 51, tooth roller 3 is installed below the position of conveyor belt 12, and is located between inclined scraper 2 and the discharge end of conveyor belt 12, tooth roller 3 can move up and down, can be adapted to conveyor belt 12, and can also adjust the spacing with conveyor belt 12 according to the thickness of coal slime crust, to ensure the crushing effect, the up and down movement of tooth roller 3 is realized by the following structure: including the adjusting plate 4 that is fixedly connected on the both sides of rack 11, the guide rod 41 that is fixedly connected on adjusting plate 4, and the screw rod 42 that is screwed on adjusting plate 4;Rack 11 is also provided with mounting bracket 5, tooth roller 3 is rotatably arranged between the mounting bracket 5 on the both sides, mounting bracket 5 is screwed on screw rod 42, and is in sliding fit with guide rod 41;

[0032] The driving motor 51 is arranged at one side of the frame 11 and drives the connecting tooth roller 3 through a driving mechanism, the outer periphery of the tooth roller 3 is provided with crushing teeth 31, the crushing teeth 31 increase the contact area with the slime crust, and effective crushing is realized through rotation, the shape design can prevent the slime from accumulating on the tooth roller 3, the tooth roller 3 rotates under the driving of the driving motor 51, the crushing teeth 31 on the outer periphery thereof can pre-crush the slime crust on the surface of the conveying belt 12, the crusty slime is broken, and it is convenient for the subsequent inclined scraper 2 to scrape off; the driving mechanism comprises a first belt pulley 52 and a second belt pulley 53 which are rotatably connected to the mounting frame 5, and the first belt pulley 52 and the second belt pulley 53 are connected through a transmission belt 54; the output end of the driving motor 51 drives the first belt pulley 52, one end of the tooth roller 3 close to the driving motor 51 is fixedly connected with the second belt pulley 53, and the driving motor 51 drives the tooth roller 3 through the first belt pulley 52, the second belt pulley 53 and the transmission belt 54, so that power is stably transmitted to the tooth roller 3, the tooth roller 3 keeps a stable rotating speed, and the pre-crushing effect is guaranteed;

[0033] The coal slime collecting device 7 is further arranged below the positions of the tooth roller 3 and the inclined scraper 2, collects the slime crushed by the tooth roller 3 and scraped off by the inclined scraper 2, avoids the slime from scattering below the frame 11, realizes directional collection, is convenient for subsequent processing, and keeps the environment around the equipment clean.

[0034] Specifically, in use, when the conveying belt 12 of the conveyor body 1 carries raw coal and completes unloading, the conveying belt 12 of the return section is left with residual slime and crust, at this time, the cleaning device starts to work.

[0035] The driving motor 51 drives the tooth roller 3 to rotate through the driving mechanism composed of the first belt pulley 52, the transmission belt 54 and the second belt pulley 53, the crushing teeth 31 on the outer periphery of the tooth roller 3 contact the residual slime crust on the surface of the conveying belt 12, pre-crush the crust, and make the hard crust crumble and fall or disperse into small pieces of slime which are easy to clean;

[0036] By rotating the screw rod 42 on the adjusting plate 4, the mounting frame 5 which is in sliding fit with the guide rod 41 moves up and down, and the height of the tooth roller 3 is adjusted, so that the crushing teeth 31 keep an adaptive state with the surface of the conveying belt 12.

[0037] The slime pre-crushed by the tooth roller 3 continues to run to the inclined scraper 2 along with the conveying belt 12, the inclined scraper 2 contacts the surface of the conveying belt 12, the external air compression equipment supplies air to the air cavity in the inclined scraper 2 through the air pipe 22, the airflow is sprayed out through the air holes 21, the adhesion of the slime on the surface of the inclined scraper 2 is reduced, and the dispersed slime is scraped off from the surface of the conveying belt 12 by the inclined scraper 2; the scraped-off slime falls into the coal slime collecting device 7 below the tooth roller 3 and the inclined scraper 2 under the action of gravity, directional collection of the slime is realized, and the cleaning process of the conveying belt 12 is completed.

[0038] In summary, the utility model discloses, through the toothed roller 3 of the movable and by the driving motor 51 drive rotation on the frame 11, can carry out the pre -crushing of the coal slime crust on the conveyer belt 12, cooperate with the inclined scraper 2 that is equipped with air cavity and air hole 21, utilize the airflow that air hole 21 spouts, when the inclined scraper 2 scrapes the coal slime and residual coal slime crust on the conveyer belt 12, reduce the adhesion of coal slime and residual coal slime crust on the inclined scraper 2, the movable design of toothed roller 3 can adapt the running state of conveyer belt 12, then combine coal slime collecting device 7, carry out the directional collection of the coal slime and coal slime crust that are broken and scraped down, realize the cleaning of coal-fired power plant conveyer, solve the problem that common cleaning device can not remove coal slime crust and coal slime adhesion cleaning device, reduce the equipment maintenance caused by coal slime residue, guarantee the stable operation of conveyer, improve the practicality of cleaning.

[0039] The device embodiments described above are only schematic, wherein the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the embodiments. Those skilled in the art can understand and implement without creative labor.

[0040] Finally, it should be noted that: the above examples are used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A coal-fired power plant conveyor automatic cleaning device comprising a conveyor body (1) comprising a frame (11) and a conveyor belt (12) mounted to the frame (11), characterized in that: The rack (11) is provided with an inclined scraper (2) below the position of the conveying belt (12), and one end is in contact with the conveying belt (12); The inclined scraper (2) is provided with an air cavity, one side of the inclined scraper (2) is provided with an air hole (21) relative to the conveying belt (12), the air hole (21) is in communication with the air cavity, and the air cavity is connected with an external air compression device through an air pipe (22); The rack (11) is further provided with a tooth roller (3) which can move up and down and is driven to rotate by a driving motor (51), the tooth roller (3) is installed below the position of the conveying belt (12) and between the inclined scraper (2) and the discharge end of the conveying belt (12); The driving motor (51) is arranged on one side of the rack (11) and drives the tooth roller (3) through a driving mechanism.

2. An automatic cleaning device for a coal-fired power plant conveyor as defined in claim 1, characterized in that: The air hole (21) is arranged at the position close to the conveying belt (12) of the inclined scraper (2).

3. An automatic cleaning device for a coal-fired power plant conveyor as defined in claim 1, wherein: The up-and-down movement of the tooth roller (3) is realized through the following structure: The rack (11) is provided with an adjusting plate (4) fixedly connected on both sides of the rack (11), the adjusting plate (4) is fixedly connected with a guide rod (41), and the adjusting plate (4) is screwed with a screw rod (42); The rack (11) is further provided with a mounting bracket (5) on both sides, the tooth roller (3) is rotatably arranged between the mounting brackets (5) on both sides, the mounting bracket (5) is screwed on the screw rod (42) and is in sliding fit with the guide rod (41).

4. An automatic cleaning device for a coal-fired power plant conveyor as defined in claim 1, wherein: The outer periphery of the tooth roller (3) is provided with a crushing tooth (31).

5. A device for automatic cleaning of conveyors used in coal-fired power plants according to claim 3, characterized in that: The driving mechanism comprises a first pulley (52) and a second pulley (53) rotatably connected to the mounting bracket (5), and the first pulley (52) and the second pulley (53) are connected through a transmission belt (54); The output end of the driving motor (51) is drivingly connected with the first pulley (52), and one end of the tooth roller (3) close to the driving motor (51) is fixedly connected with the second pulley (53).

6. An automatic cleaning device for a coal-fired power plant conveyor as defined in claim 1, wherein: Further comprising a coal slime collecting device (7) arranged below the positions of the tooth roller (3) and the inclined scraper (2).

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