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

Abstract

The utility model 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 components, and each automatic spraying component 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] This utility model relates to the field of coal mining technology, and in particular to a multi-stage automatic spraying device for removing loose coal from a coal conveyor belt in an underground mine. Background Technology

[0002] In coal mining operations, belt conveyors are a crucial link in coal transportation. However, as belt conveyors age, the tension of the conveyor belt decreases and the idlers wear down. If the conveyor belt is too loose, it is prone to jumping and misalignment during operation, causing coal dust and slag to fall from the belt and form loose coal. Idler rollers are important components supporting the conveyor belt; when they wear unevenly or are damaged, the conveyor belt will run unevenly, and coal dust and slag will slide off the belt, forming loose coal. Furthermore, during coal discharge, coal dust and slag on the conveyor belt are easily blown up by the wind, forming loose coal as well.

[0003] Because coal is spontaneously combustible, when loose coal accumulates on a conveyor belt for an extended period with poor ventilation, heat builds up and can ignite if the coal reaches its auto-ignition point, potentially affecting equipment safety. Furthermore, excessive loose coal can enter the conveyor's drive mechanism, rollers, and other components, accelerating wear and tear and even causing equipment malfunctions and shutdowns. Utility Model Content

[0004] Based on this, it is necessary to provide a multi-stage automatic spraying device for removing loose coal from coal conveyor belts in mines, which can effectively reduce the loose coal generated during coal transportation, ensure the normal operation of the belt conveyor, and control the start and stop of the multi-stage spraying by using the coal output of the belt conveyor, thereby effectively saving water consumption and achieving dynamic matching between spraying intensity and coal transportation volume.

[0005] This utility model provides a multi-stage automatic spraying device for removing loose coal from a coal conveyor belt in a mine, comprising:

[0006] A multi-stage spraying component for spraying different water volume levels of water mist onto coal conveying belts is equipped with multiple automatic spraying units, each of which is located above the conveyor belt.

[0007] Each automatic spray assembly is equipped with a 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 spray gun. The tightening direction of the spray gun's wrench switch is the same as the transmission direction of the conveyor belt. The baffle is vertically positioned below the spray gun. One end of the connecting belt is connected to the bottom of the spray gun's wrench switch, 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 to the conveyor belt is different for each of the automatic spraying components.

[0009] Preferably, the multi-stage automatic spray floating coal removing device of the coal conveying belt machine under the mine further comprises a support fixedly connected with the frame of the coal conveying belt machine and a plurality of water supply pipes for supplying water to the multi-stage spray components;

[0010] Each automatic spray component is fixedly connected with the support, and the water outlet end of one water supply pipe is connected with the water inlet end of one automatic spray component.

[0011] Preferably, in the vertical direction along the conveying direction of the conveying belt, from one side of the conveying belt to the other side, the bottom of the baffle of the first automatic spray component abuts against the conveying belt, and the distance from the bottom of the baffle of the remaining automatic spray components to the conveying belt gradually increases.

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

[0013] Preferably, the support comprises two bases, two support rods and a fixing rod.

[0014] The two bases are respectively fixedly connected with the two sides of the frame of the coal conveying belt machine, each support rod is fixedly connected with one base perpendicularly, and the two ends of the fixing rod are respectively fixedly connected with the top of the two support rods.

[0015] All the water spray guns are fixedly connected with the bottom of the fixing rod.

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

[0017] The multi-stage automatic spray floating coal removing device of the coal conveying belt machine under the mine has the following beneficial effects: the multi-stage spray components are arranged above the conveying belt, the pressing direction of the wrench switch of the water spray gun of each automatic spray device is the same as the conveying direction of the conveying belt, the bottom of the baffle abuts against the conveying belt, when the conveying belt conveys coal, the coal collides with the baffle, the baffle is displaced in the opposite direction of the conveying direction of the conveying belt, thereby driving the connected belt to pull the wrench switch of the water spray gun, the water spray gun supplies water to the spray pipe to form spray to be sprayed on the conveying belt, and the generation of floating coal can be effectively reduced. In addition, the opening and closing of the water spray gun are automatically controlled by whether the conveying belt conveys coal, the water spray gun is started when the conveying belt conveys coal, and the water spray gun can spray in time and save water when the conveying belt stops conveying coal. The multi-stage spray components are adopted, the coal conveying amount that each baffle should cope with when starting the automatic spray device is different, the dynamic matching of the spray intensity and the coal conveying amount is realized, and the waste of water resources or the insufficient spraying amount of water mist in the single spray mode can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1The assembly relation schematic diagram of the multi-stage automatic spray floating coal removing device of the coal conveying belt machine under the mine and the conveying belt is provided for the embodiment of the utility model.

[0019] Figure 2 The connection relation schematic diagram of the water spray gun and the baffle is provided for the embodiment of the utility model.

[0020] Figure 3 The baffle arrangement structure schematic diagram of the three automatic spray assemblies is provided for the embodiment of the utility model.

[0021] Mark explanation: 100, support; 110, base; 120, support rod; 130, fixed rod; 200, automatic spray assembly; 210, water spray gun; 220, connecting belt; 230, baffle; 240, spray pipe; 241, spiral nozzle; 300, conveying belt; 400, water supply pipe. Specific implementation

[0022] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below with reference to the drawings.

[0023] It should be noted that, in the description of the utility model, "upper", "lower", "top", "bottom", orientation or positional relationship is based on the orientation or positional relationship shown in the drawings. Figure 1 It should be understood that these orientation terms are only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0024] In one embodiment, as shown in Figure 1 and Figure 2 The multi-stage automatic spray floating coal removing device of the coal conveying belt machine under the mine of the embodiment, comprising:

[0025] The multi-stage spray part for spraying different water quantity grade water mist to the coal conveyed by the coal conveying belt machine is provided with a plurality of automatic spray assemblies 200, each automatic spray assembly 200 is arranged above the conveying belt 300, and is fixedly connected with the support 100.

[0026] When the coal conveying belt machine conveying belt 300, due to the real-time change of mining output, the coal transportation capacity of the belt machine is also real-time changed, that is, the thickness of the coal on the conveying belt 300 is also real-time changed, for different thickness of coal, the quantity required when removing floating coal is different.

[0027] Each automatic spraying assembly 200 is provided with a water spraying 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 with the water outlet end of the water spraying gun 210, the compression direction of the trigger switch of the water spraying gun 210 is the same as the transmission direction of the conveying belt 300, the baffle 230 is vertically arranged below the water spraying gun 210, one end of the connecting belt 220 is connected with the bottom of the trigger switch of the water spraying gun 210, and the other end of the connecting belt 220 is connected with the top of the baffle 230.

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

[0029] In the embodiment, the multi-stage spraying part is provided with a plurality of automatic spraying devices, different numbers of automatic spraying devices can be started according to different thicknesses of coal on the conveying belt 300, and spraying of water mist of different water levels can be realized.

[0030] The multi-stage automatic spraying coal removing device of the coal conveying belt conveyor in the mine of the embodiment further comprises a plurality of water supply pipes 400 for supplying water to the multi-stage spraying part, and the water outlet end of one water supply pipe 400 is connected with the water inlet end of one automatic spraying assembly 200. Specifically, the water outlet end of the water supply pipe 400 is in continuous communication with the water inlet end of the automatic spraying assembly 200.

[0031] and a support 100 fixedly connected with the rack of the coal conveying belt conveyor. Specifically, the support 100 comprises two bases 110, two support rods 120 and a fixing rod 130; the two bases 110 are fixedly connected with the two sides of the rack of the coal conveying belt conveyor respectively, each support rod 120 is fixedly connected with one base 110 perpendicularly, and the two ends of the fixing rod 130 are fixedly connected with the top of the two support rods 120 respectively.

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

[0033] The baffle 230 in the embodiment can be made of elastic material, such as a belt, which can avoid the generation of floating coal during the collision between the baffle 230 and the coal, and can increase the service life of the baffle 230.

[0034] When the conveying belt 300 is conveying coal, the coal will collide with the baffle 230, causing the baffle 230 to displace in the opposite direction of the conveying belt 300, thereby driving the connecting belt 220 to pull the trigger switch of the water spraying gun 210, the water spraying gun 210 supplies water to the spray pipe 240 to form a spray to fall on the conveying belt 300, which can effectively reduce the generation of floating coal.

[0035] In addition, the automatic spraying floating coal removing device of the underground coal conveying belt conveyor of the embodiment is self-controlled in starting and stopping, the water gun 210 is only opened when the coal is conveyed on the conveying belt 300, and spraying can be performed in time.

[0036] In one embodiment, in the vertical direction along the conveying direction of the conveying belt 300, from one side of the conveying belt 300 to the other side, the bottom of the baffle 230 of the first automatic spraying assembly 200 abuts against the conveying belt 300, and the distance from the bottom of the baffle 230 of the remaining automatic spraying assemblies 200 to the conveying belt 300 gradually increases. Figure 3

[0037] The distance between the baffle 230 of different automatic spraying devices and the bottom of the conveying belt 300 is different, different thicknesses of coal collide with baffles 230 at different heights to start different numbers of automatic spraying devices, and dynamic matching of spraying intensity and coal conveying amount is realized.

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

[0039] Specifically, the water gun 210 and the fixed rod 130 are connected by screws, buckles or sliding blocks. The spiral nozzle 241 has good anti-blocking characteristics.

[0040] The automatic spraying floating coal removing device of the underground coal conveying belt conveyor of the utility model is used for a long conveying belt 300, can be arranged in multiple groups above the conveying belt 300, is arranged at an interval of one end, prevents the coal on the conveying belt 300 from drying and generating floating coal again.

[0041] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as a limitation on the patent scope of the utility model. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the appended claims.​

Claims

1. A multi-stage automatic spray coal floating device for a coal conveying belt in a coal mine, characterized in that, The utility model relates to a multistage spraying component for spraying different water content levels of water mist to coal transported by a coal conveying belt, which is provided with a plurality of automatic spraying assemblies (200), each of which is arranged above a conveying belt (300). Each automatic spraying assembly (200) is provided with a water 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 with the water outlet end of the water gun (210), the compression direction of the trigger switch of the water gun (210) is the same as the transmission direction of the conveying belt (300), the baffle (230) is vertically arranged below the water gun (210), one end of the connecting belt (220) is connected with the bottom of the trigger switch of the water gun (210), and the other end of the connecting belt (220) is connected with the top of the baffle (230). The distance from the bottom of the baffle (230) of each automatic spraying assembly (200) to the conveying belt (300) is different. The utility model further comprises a support (100) fixedly connected with the frame of the coal conveying belt and a plurality of water supply pipes (400) for supplying water to the multistage spraying component.

2. The multi-stage automatic coal dust spraying device for coal conveying belt in a coal mine according to claim 1, characterized in that, Each automatic spraying assembly (200) is fixedly connected with the support (100), and the water outlet end of one water supply pipe (400) is connected with the water inlet end of one automatic spraying assembly (200). In the vertical direction of the transmission direction of the conveying belt (300), from one side of the conveying belt (300) to the other side, the bottom of the baffle (230) of the first automatic spraying assembly (200) abuts against the conveying belt (300), and the distance from the bottom of the baffle (230) of the remaining automatic spraying assemblies (200) to the conveying belt (300) gradually increases.

3. The multi-stage automatic coal dust spraying device for coal conveying belt in a coal mine according to claim 2, characterized in that, The distance difference from the bottom of the baffle (230) of any two adjacent automatic spraying assemblies (200) to the conveying belt (300) is 1cm-5cm.

4. The multi-stage automatic coal dust spraying device for coal conveying belt in a coal mine according to claim 3, characterized in that, The support (100) comprises two bases (110), two support rods (120) and a fixed rod (130).

5. The multi-stage automatic coal dust spraying device for coal conveying belt in a coal mine according to claim 4, characterized in that, The two bases (110) are respectively fixedly connected with the two sides of the frame of the coal conveying belt, each support rod (120) is vertically fixedly connected with one base (110), and the two ends of the fixed rod (130) are respectively fixedly connected with the tops of the two support rods (120). All water guns (210) are fixedly connected with the bottom of the fixed rod (130). The water outlet end of the spray pipe (240) is provided with a spiral nozzle (241), and the opening of the spiral nozzle (241) faces the conveying belt (300).

6. The multi-stage automatic coal dust spraying device for coal conveying belt in a coal mine according to claim 5, characterized in that, ​

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