Multi-stage automatic spraying float coal removing device of coal belt conveyor under mine

Abstract

The invention discloses a multi-stage automatic spraying float coal removing device of a coal belt conveyor under a mine, which is a multi-stage spraying component used for spraying water mist with different water quantity grades to coal conveyed by the coal belt conveyor, and is provided with a plurality of automatic spraying assemblies, and each automatic spraying assembly is arranged above a conveying belt; each automatic spraying assembly is provided with a water gun, a connecting belt, a baffle and a spraying pipe, the water inlet end of the spraying pipe is connected with the water outlet end of the water gun, the pressing direction of a wrench switch of the water gun is the same as the conveying direction of the conveying belt, the baffle is perpendicularly arranged below the water gun, and one end of the connecting belt is connected with the bottom of the wrench switch of the water gun. The other end of the connecting belt is connected with the top of the baffle; the distances from the bottoms of the baffles of the automatic spraying assemblies to the conveying belt are different. The device can effectively reduce the generation of float coal, is automatically started and stopped, and can realize the dynamic matching of the spray intensity and the coal transportation volume.

Description

Technical Field

[0001] The invention relates to the technical field of coal mining, in particular to a multi-stage automatic spraying floating coal removal device for a coal conveying belt conveyor in a mine. Background Art

[0002] In coal mining operations, conveyor belt transportation is an important part of coal transportation. However, as the belt conveyor is used for a longer time, the tension of the conveyor belt will decrease and the rollers will wear. If the conveyor belt is too loose, it is easy for the conveyor belt to jump or deviate during operation, causing coal slag and coal dust to fall from the conveyor belt and form floating coal. The rollers are important components that support the conveyor belt. When the rollers are unevenly worn or damaged, the conveyor belt will run unsteadily, and the coal slag and coal dust will slide off the conveyor belt to form floating coal. In addition, during the coal discharge process of the conveyor belt, the coal dust and coal slag on the conveyor belt are easily blown up by the wind to form floating coal.

[0003] Since coal is self-igniting, when floating coal is piled on the belt conveyor for a long time and the ventilation is poor, the heat accumulates and reaches the self-ignition point of the coal, which may cause a fire and affect the safe operation of the equipment. In addition, too much floating coal will enter the transmission device, roller and other parts of the belt conveyor, aggravating the wear of the equipment and even causing equipment failure and shutdown. Summary of the invention

[0004] Based on this, it is necessary to provide a multi-stage automatic spray floating coal removal device for a coal conveyor belt conveyor in a mine to address the above-mentioned technical problems, effectively reduce the floating coal generated during the belt conveyor's coal transportation, ensure the normal operation of the belt conveyor, and use the coal output of the belt conveyor to control the start and stop of the multi-stage spray, which can effectively save water and achieve dynamic matching of the spray intensity and the coal transportation volume.

[0005] The present invention provides a multi-stage automatic spraying floating coal removal device for a coal conveyor belt conveyor in a mine, comprising:

[0006] A multi-stage spray component for spraying water mist of different water volume levels on the coal transported by the coal conveyor belt conveyor is provided with a plurality of automatic spray components, each of which is arranged above the conveyor belt;

[0007] Each automatic spray assembly is provided with a water spray gun, a connecting belt, a baffle and a spray pipe, the water inlet end of the spray pipe is connected to the water outlet end of the water spray gun, the pressing direction of the wrench switch of the water spray gun is the same as the transmission direction of the conveyor belt, the baffle is vertically arranged below the water spray gun, one end of the connecting belt is connected to the bottom of the wrench switch of the water spray gun, and the other end of the connecting belt is connected to the top of the baffle;

[0008] The distance from the bottom of the baffle of each automatic spray assembly to the conveyor belt is different.

[0009] Preferably, the multi-stage automatic spraying floating coal removal device for the coal conveyor belt conveyor in the mine further comprises a bracket fixedly connected to the frame of the coal conveyor belt conveyor and a plurality of water supply pipes for supplying water to the multi-stage spraying components;

[0010] Each automatic spray assembly is fixedly connected to the bracket, and a water outlet end of a water supply pipe is connected to a water inlet end of an automatic spray assembly.

[0011] Preferably, along the direction perpendicular to the transmission direction of the conveyor belt, from one side of the conveyor belt to the other side, the bottom of the baffle of the first automatic spray assembly abuts against the conveyor belt, and the distance from the bottom of the baffle of the remaining automatic spray assemblies to the conveyor belt gradually increases to a fixed length.

[0012] Preferably, the distance difference between the bottom of the baffles of any two adjacent automatic spray assemblies and the conveyor belt is 1 cm to 5 cm.

[0013] Preferably, the bracket includes two bases, two support rods and a fixing rod;

[0014] The two bases are fixedly connected to the two sides of the frame of the coal conveyor belt machine respectively, each support rod is vertically fixedly connected to a base, and the two ends of the fixed rod are fixedly connected to the tops of the two support rods respectively;

[0015] All water spray guns are fixedly connected to the bottom of the fixed rod.

[0016] Preferably, a spiral nozzle is provided at the water outlet end of the spray pipe, and the opening of the spiral nozzle faces the conveyor belt.

[0017] Beneficial effects of the present invention: The multi-stage automatic spraying device for removing floating coal of the coal conveyor belt machine in the mine of the present invention, the multi-stage spraying component is arranged above the conveyor belt, the pressing direction of the wrench switch of the water spray gun of each automatic spraying device is the same as the transmission direction of the conveyor belt, the bottom of the baffle is in contact with the conveyor belt, when the conveyor belt is transporting coal, the coal will collide with the baffle, so that the baffle is displaced in the opposite direction of the conveyor belt transmission, and then drive the connecting belt to tighten the wrench switch of the water spray gun, and the water spray gun delivers water to the nozzle to form a spray to sprinkle on the conveyor belt, which can effectively reduce the generation of floating coal. In addition, the opening and closing of the water spray gun is automatically controlled by whether the conveyor belt is transporting coal. It is started when the coal is transported, and when the coal transportation stops, it can spray in time and save water. With the multi-stage spraying component, each baffle starts the automatic spraying device to deal with different coal transportation amounts, so as to achieve dynamic matching of the spray intensity and the coal transportation amount, and can avoid the waste of water resources in a single spray mode or insufficient spraying water mist. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1A schematic diagram of the assembly relationship between the multi-stage automatic spraying coal removal device and the conveyor belt of the coal conveyor belt machine in a mine provided by an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of the connection relationship between a water spray gun and a baffle provided in an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of the baffle arrangement structure of three automatic spray assemblies provided in an embodiment of the present invention.

[0021] Explanation of the reference numerals: 100, bracket; 110, base; 120, support rod; 130, fixing rod; 200, automatic spray assembly; 210, water spray gun; 220, connecting belt; 230, baffle; 240, spray pipe; 241, spiral nozzle; 300, conveyor belt; 400, water supply pipe. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] It should be noted that in the description of the present invention, “upper”, “lower”, “top”, “bottom”, orientation or position relationship is based on the attached Figure 1 Regarding the orientation or positional relationship shown, it should be understood that these orientation terms are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In one embodiment, Figure 1 and Figure 2 As shown, the multi-stage automatic spraying floating coal removal device of the coal conveyor belt conveyor in the mine of this embodiment includes:

[0025] A multi-stage spray component for spraying water mist of different water volume levels onto the coal transported by the coal conveyor belt is provided with a plurality of automatic spray assemblies 200 , each of which is arranged above the conveyor belt 300 and is fixedly connected to the bracket 100 .

[0026] When the coal conveyor belt 300 is conveying, due to the real-time change of mining output, the coal transportation volume of the belt conveyor is also changed in real time, that is, the thickness of the coal on the conveyor belt 300 is also changed in real time. For coal of different thicknesses, the amount required to remove floating coal is different.

[0027] Each automatic spray assembly 200 is provided with a water spray gun 210, a connecting belt 220, a baffle 230 and a nozzle 240, the water inlet end of the nozzle 240 is connected to the water outlet end of the water spray gun 210, the pressing direction of the wrench switch of the water spray gun 210 is the same as the transmission direction of the conveyor belt 300, the baffle 230 is vertically arranged below the water spray gun 210, one end of the connecting belt 220 is connected to the bottom of the wrench switch of the water spray gun 210, and the other end of the connecting belt 220 is connected to the top of the baffle 230;

[0028] The distance from the bottom of the baffle 230 of each automatic spray assembly 200 to the conveyor belt (300) is different. The connecting belt 220 is a flexible rope or chain structure.

[0029] In this embodiment, the multi-stage spray component is provided with a plurality of automatic spray devices, which can activate different numbers of automatic spray devices according to the different thicknesses of the coal on the conveyor belt 300 to achieve the spraying of water mist with different water volume levels.

[0030] The multi-stage automatic spraying coal removal device of the coal conveyor belt conveyor in the mine of this embodiment also has a plurality of water supply pipes 400 for supplying water to the multi-stage spraying components, and the water outlet end of one water supply pipe 400 is connected to the water inlet end of an automatic spraying assembly 200. Specifically, the water outlet end of the water supply pipe 400 is continuously connected to the water inlet end of the automatic spraying assembly 200.

[0031] And a bracket 100 fixedly connected to the frame of the coal conveyor belt machine. Specifically, the bracket 100 includes two bases 110, two support rods 120 and a fixed rod 130; the two bases 110 are respectively fixedly connected to the two sides of the frame of the coal conveyor belt machine, each support rod 120 is vertically fixedly connected to a base 110, and the two ends of the fixed rod 130 are respectively fixedly connected to the tops of the two support rods 120.

[0032] In this embodiment, the fixing rod 130 is perpendicular to the supporting rod 120 and both are made of square steel.

[0033] The baffle 230 in this embodiment can be made of an elastic material, such as a belt, which can prevent floating coal from being generated during the collision between the baffle 230 and the coal and can increase the service life of the baffle 230.

[0034] When the conveyor belt 300 is transporting coal, the coal will collide with the baffle 230, causing the baffle 230 to move in the opposite direction of the conveyor belt 300, thereby driving the connecting belt 220 to tighten the wrench switch of the water spray gun 210. The water spray gun 210 supplies water to the nozzle 240 to form a spray that falls onto the conveyor belt 300, which can effectively reduce the generation of floating coal.

[0035] In addition, the automatic spraying and floating coal removal device of the coal conveyor belt conveyor in the mine of this embodiment is automatically controlled to start and stop. The water spray gun 210 will only be opened when coal is being transported on the conveyor belt 300, so that spraying can be carried out in time. The whole device sprays, and when the coal transportation stops, the water spray gun 210 is closed, and the whole device stops spraying, saving water.

[0036] In one embodiment, along the vertical direction of the conveying direction of the conveyor belt 300, from one side of the conveyor belt 300 to the other side, the bottom of the baffle 230 of the first automatic spray assembly 200 abuts against the conveyor belt 300, and the distance from the bottom of the baffle 230 of the remaining automatic spray assemblies 200 to the conveyor belt 300 gradually increases by a fixed length. Exemplarily, the multi-stage spray component is provided with three automatic spray devices, and the arrangement diagram of the baffles 230 corresponding to the three automatic spray devices is as shown in Figure 3 shown.

[0037] The distances between the baffles 230 of different automatic spray devices and the bottom of the conveyor belt 300 are different. Different coal thicknesses will collide with baffles 230 of different heights to activate different numbers of automatic spray devices, thereby achieving dynamic matching of spray intensity and coal transportation volume.

[0038] In one embodiment, the distance difference between the bottom of the baffle 230 of any two adjacent automatic spray assemblies 200 and the conveyor belt 300 is 1 cm to 5 cm. All water spray guns 210 are fixedly connected to the bottom of the fixed rod 130, and the water outlet end of the spray pipe 240 is provided with a spiral nozzle 241, and the spiral nozzle 241 opens toward the conveyor belt 300.

[0039] Specifically, the water spray gun 210 is connected to the fixing rod 130 by means of screws, buckles or sliders. The spiral nozzle 241 has good anti-blocking characteristics.

[0040] When the automatic spraying and removing floating coal device of the underground coal conveyor belt machine of the present invention is used for a longer conveyor belt 300, it can be arranged in multiple groups above the conveyor belt 300, with one arranged at a fixed distance at each end to prevent the continuous generation of floating coal after the coal on the conveyor belt 300 is dried.

[0041] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A multi-stage automatic spraying device for removing floating coal from a coal conveyor belt conveyor in a mine, characterized in that: include: A multi-stage spray component for spraying water mist of different water volume levels onto coal transported by a coal conveyor belt, wherein the multi-stage spray component is provided with a plurality of automatic spray assemblies (200), and each automatic spray assembly (200) is arranged above a conveyor belt (300); Each of the automatic spraying components (200) is provided with a water spray gun (210), a connecting belt (220), a baffle (230) and a spray pipe (240); the water inlet end of the spray pipe (240) is connected to the water outlet end of the water spray gun (210); the pressing direction of the wrench switch of the water spray gun (210) is the same as the transmission direction of the conveyor belt (300); the baffle (230) is vertically arranged below the water spray gun (210); one end of the connecting belt (220) is connected to the bottom of the wrench switch of the water spray gun (210); and the other end of the connecting belt (220) is connected to the top of the baffle (230); The distance between the bottom of the baffle (230) of each automatic spray assembly (200) and the conveyor belt (300) is different.

2. The multi-stage automatic spraying and floating coal removal device for the coal conveyor belt conveyor in the mine according to claim 1 is characterized in that: It also includes a bracket (100) fixedly connected to the frame of the coal conveyor belt machine and a plurality of water supply pipes (400) for supplying water to the multi-stage spray component; Each automatic spray assembly (200) is fixedly connected to the bracket (100), and the water outlet end of one of the water supply pipes (400) is connected to the water inlet end of one of the automatic spray assemblies (200).

3. The multi-stage automatic spraying floating coal removal device for the coal conveyor belt conveyor in the mine according to claim 2 is characterized in that: Along a direction perpendicular to the transmission direction of the conveyor belt (300), from one side to the other side of the conveyor belt (300), the bottom of the baffle plate (230) of the first automatic spray assembly (200) abuts against the conveyor belt (300), and the distance from the bottom of the baffle plate (230) of the remaining automatic spray assemblies (200) to the conveyor belt (300) gradually increases to a fixed length.

4. The multi-stage automatic spraying floating coal removal device for the coal conveyor belt conveyor in the mine according to claim 3 is characterized in that: The distance difference between the bottom of the baffles (230) of any two adjacent automatic spray assemblies (200) and the conveyor belt (300) is 1 cm to 5 cm.

5. The multi-stage automatic spraying floating coal removal device for the coal conveyor belt conveyor in the mine according to claim 4 is characterized in that: The bracket (100) comprises two bases (110), two support rods (120) and a fixing rod (130); The two bases (110) are respectively fixedly connected to two sides of the frame of the coal conveyor belt machine, each of the support rods (120) is vertically fixedly connected to a base (110), and the two ends of the fixing rod (130) are respectively fixedly connected to the tops of the two support rods (120); All the water spray guns (210) are fixedly connected to the bottom of the fixing rod (130).

6. The multi-stage automatic spraying and floating coal removal device for the coal conveyor belt conveyor in the mine according to claim 5 is characterized in that: A spiral nozzle (241) is provided at the water outlet end of the spray pipe (240), and the opening of the spiral nozzle (241) faces the conveyor belt (300).

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