Automatic cleaning device for conveyor belt

Abstract

The utility model relates to an automatic cleaning device for a conveyor belt. The automatic cleaning device comprises a dust guide groove, an air curtain ejector, a connecting hose, a pressure regulating valve, a branch valve, a gas transmission branch pipeline, a branching device, a gas transmission main pipeline, a gas storage tank, a pressure gauge, an air compressor, an ejector bracket and an air curtain nozzle. According to the device, air is pressurized through the air compressor and conveyed to the spray heads through the pipeline, a high-pressure air curtain is formed below the conveying belt, dust adhering to the conveying belt is blown to the closed dust guide groove through wind power and falls to the stone discharging outlet, and then the automatic cleaning function of the conveying belt is achieved; the problem that stones and dust adhere to the lower portion of the return conveying belt is successfully solved, falling dust is prevented from entering a conveying belt carrier roller bearing to aggravate bearing abrasion, the service life of a carrier roller is prolonged, the equipment failure rate is remarkably reduced, the equipment maintenance cost is saved, the labor intensity of operators is reduced, dust in a vestibule is reduced, and the conveying belt vestibule environment is effectively improved. And a solid foundation is laid for green mine construction.

Description

TECHNICAL FIELD

[0001] The patent application belongs to the technical field of mine equipment, and more particularly to a conveying belt automatic cleaning device which can clean the adhered dust on the conveying belt for transporting crushed stones in mines. BACKGROUND

[0002] The conveying belt has been developed for more than 100 years and has the advantages of large conveying capacity, long conveying distance, simple structure and easy installation and maintenance, and has become one of the preferred conveying equipment and is increasingly widely used. The main transportation equipment of the company is the conveying belt, but in the process of conveying ballast by using the conveying belt, the material powder adhered to the conveying belt will accumulate under the return conveying belt, which not only increases the labor intensity of the workers to a certain extent, but also causes the air environment of the corridor to be turbid and unclear, increasing the risk of occupational diseases of the workers; part of the falling dust is easy to enter the bearing of the conveying belt roller, causing the roller to be easy to wear and break, increasing the equipment failure rate and the cost burden of equipment maintenance.

[0003] In view of the above problems, it is urgent to invent a conveying belt automatic cleaning device to solve the problem of adhered ballast dust under the return conveying belt. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at the technical defects of the existing conveying belt transportation and provides a conveying belt automatic cleaning device which can successfully solve the problem of adhered ballast dust under the return conveying belt, avoid the falling dust entering the bearing of the conveying belt roller to increase the bearing wear, reduce the labor intensity of the workers, reduce the dust in the corridor, effectively improve the environment of the conveying belt corridor and lay a solid foundation for green mine construction.

[0005] A conveying belt automatic cleaning device, which comprises a dust guide groove arranged below the conveying belt, a wind curtain sprayer arranged between the dust guide groove and the conveying belt, a plurality of wind curtain nozzles arranged on the wind curtain sprayer, a connecting hose connected with the air inlet end of the wind curtain sprayer, a shunt connected with the other end of the connecting hose, a plurality of gas transmission branch pipelines arranged on the shunt, a shunt valve arranged at the end of each gas transmission branch pipeline, a pressure regulating valve arranged at the end of each gas transmission branch pipeline, a gas transmission main pipeline connected with the other end of the shunt, a gas storage tank connected with the gas transmission main pipeline, a pressure gauge arranged on the gas storage tank, an air compressor connected with the air inlet of the gas storage tank, and a power line electrically connected with the air compressor. The pressure regulating valve is connected with the wind curtain sprayer through the connecting hose, the power line is electrically connected with the electrical control cabinet of the conveying belt, the outlet of the dust guide groove is located above another set of conveying belt for collecting dust, the falling ballast dust is concentrated on the lower conveying belt and transported to the stockpile, the labor intensity of cleaning the conveying belt corridor is reduced, and the wind curtain sprayer and the conveying belt driving drum of the conveying belt are in parallel relationship.

[0006] Further, the wind curtain nozzle spraying direction is 40°-60° with the conveying belt, and the spraying wind curtain is the same as the width size of the conveying belt.

[0007] As preferred, the wind curtain nozzle spraying direction is 56° with the conveying belt.

[0008] Further, the connecting hose is a metal bellows.

[0009] Further, the number of gas transmission sub-pipes is 3-8.

[0010] Further, the wind curtain sprayer is fixed on the rack two-end column of the conveying belt through a sprayer bracket, the sprayer bracket is L-shaped, the corresponding part of the L-shaped sprayer bracket and the wind curtain sprayer is provided with a circular arc part, the wind curtain sprayer is installed in the circular arc part, the wind curtain sprayer is a galvanized pipe and is installed and fixed below the return conveying belt of the conveying belt and close to the direction of the conveying belt head, and is reinforced on the sprayer bracket in a welding manner.

[0011] Further, the ash guide groove is in a funnel shape

[0012] Due to the adoption of the above technical scheme, the present application has the following beneficial effects:

[0013] The device has simple structure, low manufacturing cost, and easy-to-replace parts, successfully solves the problem of adhesion of stone ash soil under the return conveying belt, avoids the falling ash soil from entering the conveying belt supporting roller bearing to aggravate bearing wear, greatly prolongs the service life of the supporting roller, significantly reduces the equipment failure rate, saves the equipment maintenance cost, prevents the ash soil under the conveying belt corridor from falling and accumulating, reduces the cleaning work of the conveying belt corridor, substantially reduces the labor intensity of the operating personnel, reduces the dust in the corridor, effectively improves the environment of the conveying belt corridor, and lays a solid foundation for green mine construction. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic view of the present application;

[0015] Figure 2 is Figure 1 is a top view;

[0016] Figure 3 is a background technical schematic view of the present application;

[0017] Figure 4 is Figure 3 is an enlarged schematic view of N part in

[0018] Wherein: the guide gutter 1, the air curtain sprayer 2, the connecting hose 3, the pressure regulating valve 4, the shunt valve 5, the gas transmission branch pipeline 6, the shunt 7, the gas transmission main pipeline 8, the gas storage tank 9, the pressure gauge 10, the air compressor 11, the power line 12, the conveyor electrical control cabinet 13, the conveyor drive roller 14, the conveyor rack support frame 15, the conveyor pinch roller 16, the conveyor belt 17, the sprayer bracket 18, the rack enclosed bin 19, the air curtain spray head 20. DETAILED DESCRIPTION

[0019] The utility model will be further explained in detail in connection with the embodiments below.

[0020] A conveyor belt automatic cleaning device, like Figure 1 , is composed of a guide gutter 1, an air curtain sprayer 2, a connecting hose 3, a pressure regulating valve 4, a shunt valve 5, a gas transmission branch pipeline 6, a shunt 7, a gas transmission main pipeline 8, a gas storage tank 9, a pressure gauge 10, an air compressor 11, a sprayer bracket 18, and an air curtain spray head 20.

[0021] As Figure 1 , Figure 2 , the utility model discloses a guide gutter 1 arranged below the conveyor belt 17 (that is, below the rack drive roller), an air curtain sprayer 2 located between the guide gutter 1 and the conveyor belt 17, a plurality of air curtain spray heads 20 arranged on the air curtain sprayer 2, a connecting hose 3 connected to the air inlet end of the air curtain sprayer 2, a pressure regulating valve 4 arranged on the connecting hose 3, a shunt 7 connected to the other end of the connecting hose 3, a plurality of gas transmission branch pipelines 6 arranged on the shunt 7, a shunt valve 5 arranged on each gas transmission branch pipeline 6, a pressure regulating valve 4 arranged at the end of each gas transmission branch pipeline 6, a gas transmission main pipeline 8 connected to the other end of the shunt 7, a gas storage tank 9 connected to the gas transmission main pipeline 8, a pressure gauge 10 arranged on the gas storage tank 9, an air compressor 11 connected to the air inlet of the gas storage tank 9, and a power line 12 electrically connected to the air compressor 11.

[0022] The power line 12 is electrically connected to the conveyor electrical control cabinet 13, and the outlet of the guide gutter 1 is located above another set of conveyor belts 17 used for collecting the ash soil, so that the falling stone ash soil can be concentrated on the lower conveyor belt and transported to the stockpile, reducing the labor intensity of cleaning the conveyor belt 17 corridor.

[0023] The guide gutter 1 is funnel-shaped, and the guide gutter 1 can realize closed transfer of the falling ash soil, preventing dust dispersion. The outlet of the guide gutter 1 is directly opposite the upper side of the lower conveyor belt, ensuring that the concentrated stone ash soil falls on the next set of conveyor belts. The guide gutter 1 finally concentrates the falling stone ash soil on the lower conveyor belt 17 and transports it to the stockpile, reducing the labor intensity of cleaning the conveyor belt 17 corridor.

[0024] The gas transmission sub-pipeline 6 is connected with a pressure regulating valve 4 at the end, and the pressure regulating valve 4 is connected with the air curtain jet 2 through a connecting hose 3, so as to facilitate equipment installation and component maintenance and replacement.

[0025] In Figure 1 , Figure 2 , the air compressor 11 is connected with the conveying belt electrical control cabinet 13 through the power line 12, and is kept in a synchronous start-stop associated state. When the conveying belt 17 starts to operate, the air compressor 11 is started by the conveying belt electrical control cabinet 13, and compressed air is rapidly delivered to the air storage tank 9, and then is transmitted to the sub-pipeline 7 through the gas transmission main pipeline 8, and then is delivered to different series of conveying belts 17. The sub-pipeline valve 5 connected in series in the gas transmission sub-pipeline 6 controls the start-stop of the sub-pipeline gas delivery. The gas transmission sub-pipeline 6 is connected with a pressure regulating valve 4 at the end, and the pressure regulating valve 4 is connected with the air curtain jet 2 through a connecting hose 3, and the connecting hose 3 is a metal bellows. The high-pressure gas forms an air curtain below the conveying belt 17 to blow the adhered stone and soil of the conveying belt 17 to the guide chute 1, and then is discharged to the conveying belt 17 below and finally is discharged to the stockpile, so as to realize automatic cleaning of the conveying belt.

[0026] The number of the gas transmission sub-pipeline 6 is 3-8, and five are selected in the device. The number is selected according to the specific situation. Each gas transmission sub-pipeline 6 is finally connected with an air curtain jet 2, and the air curtain jet 2 realizes the automatic cleaning function of the conveying belt 17 by outputting high-pressure air curtain.

[0027] In combination Figure 1 , the pressure gauge 10 can display the gas pressure in the pipeline in real time. When the device components appear to be blocked, such as the air curtain jet 20, the pressure gauge 10 will display abnormal pressure, reminding the point inspection personnel to maintain the device.

[0028] In combination Figure 3 , the pressure regulating valve 4 plays a whole adjusting role on the delivery gas pressure, realizes the average distribution of each sub-pipeline gas pressure, and guarantees the cleaning effect. The flexible connection of the connecting hose 3 realizes the flexible movement of the relatively fixed pressure regulating valve 4 relative to the air curtain jet 2, and facilitates the final debugging and installation of the whole device.

[0029] In combination Figure 3 , the guide chute 1 is located at the lowermost part of the rack closed bin 19. The rack closed bin 19 is in a fully closed state except the conveying belt inlet, so as to ensure that a small amount of stone and soil blown into the rack closed bin 19 will slowly pass and slide to the funnel-shaped guide chute 1.

[0030] In combination Figure 3 , the air curtain jet 2 is installed at a position close to the opening of the rack closed bin 19 between the conveying belt clamping wheel 16 and the conveying belt driving drum 14, and is guaranteed to be in parallel with the conveying belt driving drum 14.

[0031] Combination Figure 3 , Figure 4 The spray air curtain of the device air curtain nozzle 20 forms an angle of 40° to 60° with the conveyor belt 17, preferably 56°. The air curtain nozzle 20 and the air curtain sprayer 2 are fixed by threads. When part of the air curtain nozzle 20 is damaged, it can be replaced individually.

[0032] Combination Figure 4 The air curtain sprayer 2 is fixed at both ends to the end columns of the conveyor belt 17 frame via the sprayer bracket 18, meaning the air curtain sprayer 2 is fixed to the conveyor belt frame support frame 15. This fixing is achieved through welding for greater stability. The sprayer bracket 18 is L-shaped, with an arc-shaped section corresponding to the air curtain sprayer 2. The air curtain sprayer 2 is made of galvanized pipe and is installed within the arc-shaped section, fixed below the return conveyor belt near the conveyor head, and reinforced to the sprayer bracket 17 by welding.

[0033] This device uses an air compressor 11 to pressurize air, which is then transmitted to the air curtain nozzle 20 of the air curtain injector 2 through the gas transmission branch pipeline 6. A high-pressure air curtain is formed below the conveyor belt 17, and the air force blows the dust and soil adhering to the conveyor belt 17 into the closed dust guide chute 1 and then into the stone discharge outlet, thereby realizing the automatic cleaning function of the conveyor belt 17.

[0034] This device successfully solves the problem of automatically cleaning up adhering stone and soil under the conveyor belt 17, preventing soil from falling into the bearings of the conveyor belt clamping wheel 16 and conveyor belt idlers, thus avoiding increased bearing wear, extending the service life of the idlers, significantly reducing equipment failure rate, saving equipment maintenance costs, preventing soil from falling and accumulating under the conveyor belt in the corridor, reducing the cleaning work of the conveyor belt corridor, reducing the labor intensity of operators, reducing dust in the corridor, and improving the environment of the conveyor belt corridor. It has significant economic, social and environmental benefits and lays a solid foundation for the construction of green mines.

Claims

1. A conveyor belt automatic cleaning device characterized by: The device comprises a dust guide chute (1) arranged below a conveyor belt (17), an air curtain sprayer (2) between the dust guide chute (1) and the conveyor belt (17), a plurality of air curtain nozzles (20) arranged on the air curtain sprayer (2), a connecting hose (3) connected with an air inlet end of the air curtain sprayer (2), a shunt (7) connected with the other end of the connecting hose (3), a plurality of gas transmission branch pipes (6) arranged on the shunt (7), a shunt valve (5) arranged on each gas transmission branch pipe (6), a pressure regulating valve (4) arranged at the end of each gas transmission branch pipe (6), a gas transmission main pipe (8) connected with the other end of the shunt (7), a gas storage tank (9) connected with the gas transmission main pipe (8), a pressure gauge (10) arranged on the gas storage tank (9), an air compressor (11) connected with an air inlet of the gas storage tank (9), and a power line (12) electrically connected with the air compressor (11), wherein the pressure regulating valve (4) is connected with the air curtain sprayer (2) through the connecting hose (3), the power line (12) is electrically connected with a conveyor belt electrical control cabinet (13), the outlet of the dust guide chute (1) is above another set of conveyor belts (17) for collecting dust, and the air curtain sprayer (2) is in parallel with a conveyor belt driving roller (14) of the conveyor belt (17).

2. An automatic belt cleaning device according to claim 1, characterized in that The air curtain nozzles (20) are arranged at an angle of 40°-60° with the conveyor belt (17), and the air curtain nozzles (20) have the same width as the conveyor belt (17).

3. An automatic belt cleaning device according to claim 2, characterized in that: The air curtain nozzles (20) are arranged at an angle of 56° with the conveyor belt (17).

4. The apparatus of claim 1 wherein: The connecting hose (3) is a metal corrugated pipe.

5. The apparatus of claim 1 wherein: The number of the gas transmission branch pipes (6) is 3-8.

6. The apparatus according to any one of claims 1 to 5, wherein: The air curtain sprayer (2) is fixed on the stand columns at both ends of a rack of the conveyor belt (17) through a sprayer bracket (18), the sprayer bracket (18) is L-shaped, an arc part is arranged at the corresponding position of the L-shaped sprayer bracket (18) and the air curtain sprayer (2), the air curtain sprayer (2) is installed in the arc part, and the air curtain sprayer (2) is a galvanized pipe.

7. An automatic belt cleaning apparatus according to claim 6, wherein: The dust guide chute (1) is in the shape of a funnel.

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