Conveying device for mining

Abstract

The invention relates to the technical field of mining conveying equipment, and discloses a mining conveying device which comprises a valve body shell fixedly connected to the outer wall of a conveying belt outer cover, a first connecting rod is rotationally connected to the outer wall of a first telescopic rod, and a second connecting rod is rotationally connected to the outer wall of a second telescopic rod. The inner wall of the end, away from the second telescopic rod, of the second connecting rod is rotationally connected with a flow limiting rod, due to the fact that the weights of fed materials are different, the compression amount of a supporting bearing is different, then the moving distances of the connecting positions of the first connecting rod and the second connecting rod are different, and then the moving distances of the flow limiting rod are different; meanwhile, the moving distance can be changed along with the different weights of the materials, finally, the flow of the spraying liquid passing through the valve body shell can be changed along with the different quantities of the materials, when the quantity of the conveyed materials is suddenly increased, the dust discharge amount is increased, the spraying water passing through the valve body shell can be increased, and therefore dust falling can be better conducted.

Description

Technical Field

[0001] The present invention relates to the technical field of mining conveying equipment, in particular to a conveying device for mining. Background Art

[0002] In mining operations, conveyor belts, as key equipment for ore transportation, are crucial for transporting mined ore from the mining area to subsequent processing or storage. However, during this process, conveyor belts inevitably generate significant amounts of dust due to factors such as material loading and unloading and the operation of the belts. This dust not only seriously pollutes the mining environment but also reduces visibility in the work area, obstructing operators' sight and increasing the risk of accidents. Therefore, effectively controlling dust pollution during conveyor belt transportation is crucial for ensuring safe mining operations, protecting employee health, and reducing operating costs.

[0003] When the amount of conveyed material is small, the material is distributed more sparsely on the conveyor belt, and the collision and friction between the material and the belt, as well as between the materials themselves, are relatively weak, resulting in a relatively small amount of dust. At this time, if the spray volume of the dust suppression device is not adjusted in time and maintained at a high level, over-spraying will occur; on the contrary, when the amount of conveyed material increases significantly, the thickness of the material accumulation on the conveyor belt increases, and the loading, unloading, and transportation processes of the material become more intense, which will generate a large amount of dust. If the dust suppression device cannot increase the spray volume and spray coverage accordingly, it will not be able to contact the dust in a timely and sufficient manner and cause it to settle. Therefore, the development of a new type of dust suppression device that can intelligently adjust the spray parameters in real time according to the material amount, effectively improving the dust suppression effect under different material amounts, has important practical significance and urgent market demand. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a conveying device for mining, comprising a support frame, a conveyor belt cover fixedly connected to the outer wall of the support frame, a conveying device fixedly connected to the outer wall of the conveyor belt cover, and further comprising: A flow control mechanism, wherein the outer wall of the flow control mechanism is fixedly connected to the outer wall of the conveyor belt cover, and the flow control mechanism is used to control the flow of the liquid; A control mechanism, wherein the outer wall of the control mechanism is fixedly connected to the inner wall of the flow control mechanism, and the control mechanism is used to control the spray volume; A protection mechanism, wherein the outer wall of the protection mechanism is fixedly connected to the outer wall of the control mechanism, and the protection mechanism is used to protect the spray head; Two support rods are fixedly connected to the outer wall of the conveyor belt cover, and a support rod shell is slidably connected to the outer walls of the two support rods. A support spring is fixedly connected to the outer wall of the support rod, and a support bearing is slidably connected to the inner wall of the support rod shell away from one end of the support rod.

[0005] Preferably, the flow control mechanism includes: A support assembly, wherein an outer wall of the support assembly is fixedly connected to an outer wall of the support bearing; A flow control component, wherein the outer wall of the flow control component is fixedly connected to the outer wall of the conveyor belt outer cover.

[0006] Preferably, the control mechanism includes: A control component, wherein the outer wall of the control component is fixedly connected to the inner wall of the flow control component; The sliding component has an outer wall that is slidably connected to the inner wall of the control component.

[0007] Preferably, the protection mechanism includes: An air supply assembly, wherein the outer wall of the air supply assembly is fixedly connected to the outer wall of the control assembly; The protection component is slidingly connected at the outer wall of the protection component and the inner wall of the control component.

[0008] Preferably, the support assembly includes a telescopic rod 1 fixedly connected to the outer wall of the support bearing, a telescopic rod 2 fixedly connected to the outer wall of the conveyor belt cover, and a liquid input pipe fixedly connected to the outer wall of the conveyor belt cover.

[0009] When in use, first install the entire conveyor belt device on the outer wall of the support frame and fix it, fix the spray device on the outer wall of the conveyor belt cover, connect the required spray water to the liquid input pipe, so that the liquid is input into the device through the liquid input pipe; When the conveyor belt starts running, the material to be transported will first hit the surface of the conveyor belt where the conveyor belt drops. As the conveyor belt runs, the material will reach the belt above the support bearing, and the weight of the material will press the conveyor belt down, causing the support bearing to move toward the support rod. At the same time, the support spring will be compressed, and as the support bearing moves, the connection between the telescopic rod and the support bearing will move with it. Preferably, the flow control assembly includes a valve body shell fixedly connected to the outer wall of the conveyor cover, the outer wall of the telescopic rod 1 is rotatably connected to the connecting rod 1, the outer wall of the telescopic rod 2 is rotatably connected to the connecting rod 2, and the inner wall of the connecting rod 2 away from the telescopic rod 2 is rotatably connected to the flow limiting rod; The inner wall of the connecting rod 1 is rotatably connected to the outer wall of the flow limiting rod, and the inner wall of the valve body shell is slidably connected to the outer wall of the flow limiting rod.

[0010] Furthermore, the connection between the telescopic rod 1 and the connecting rod 1 will also move accordingly. At this time, the movement trend of the connection between the telescopic rod 1 and the connecting rod 1 will cause the connecting rod 1 and the connecting rod 2 to tend to be straightened, and the telescopic rod 2 will tend to stretch at this time. Further, the connection between the connecting rod 1 and the telescopic rod 1 and the connection between the connecting rod 2 and the telescopic rod 2 move away from each other, thereby causing the connection between the connecting rod 1 and the connecting rod 2 to move in the direction away from the valve body shell. Since the connection between the connecting rod 1 and the connecting rod 2 is rotatably connected to the flow limiting rod, the flow limiting rod is driven away from the valve body. One end of the shell moves, so that the spray water flows out through the channel inside the valve body shell. Since the weight of the material input each time is different, the support bearing is compressed by a different amount each time, which in turn causes the connection between the connecting rod 1 and the connecting rod 2 to move a different distance, and thus causes the moving distance of the flow-limiting rod to move a different distance. At this time, the moving distance will change with the weight of the material, and ultimately the flow rate of the spray liquid through the valve body shell will change with the amount of material. When the amount of conveyed material suddenly increases, the dust emission increases, and the spray water passing through the valve body shell will increase, thereby better reducing dust. Preferably, the control assembly includes a connecting pipe fixedly connected to the outer wall of the valve body shell, the outer wall of the connecting pipe is fixedly connected to a liquid pipeline, the inner wall of the liquid pipeline is fixedly connected to a plurality of spray head shells, the inner wall of the spray head shell is slidably connected to a piston rod, and the bottom outer wall of the piston rod is fixedly connected to a return spring; The outer wall of the end of the return spring away from the piston rod is fixedly connected to the inner wall of the spray head shell.

[0011] When the spray water passes through the valve body shell and reaches the connecting pipe, it will further pass through the liquid pipe to reach the spray head shell, and further, the spray water will reach the surface of the piston rod. In the initial stage, the water pressure may not meet the spraying requirements due to various factors, resulting in a low spraying effect. Due to the existence of the piston rod, the spray water will not be able to flow out at the beginning. Preferably, the sliding assembly includes a plurality of connecting grooves provided on the inner wall of the spray head housing, a sliding output cylinder is slidably connected to the inner wall of the spray head housing, and a plurality of flow grooves are provided on the top outer wall of the sliding output cylinder; The top outer wall of the sliding output cylinder is fixedly connected to the bottom outer wall of the piston rod.

[0012] As the water pressure increases, the piston rod will move away from the liquid pipe. When the water pressure increases to a certain level, the piston rod will move to the connecting groove. At this time, the spray water will pass through the connecting groove and reach the top surface of the sliding output cylinder. However, since the water pressure may fluctuate at any time due to other factors such as the structure of the pipeline, the water mist of the spray will be uneven, and the dust reduction effect on the material will not be obvious. At this time, the change in water pressure will cause the piston rod to move different distances, and the movement of the piston rod will also cause the sliding output cylinder to move synchronously. Further, the output port at the bottom of the sliding output cylinder will move accordingly with the change in water pressure, thereby causing the distance between the water outlet and the air outlet of the sliding output cylinder to change when the spray water is output from the sliding output cylinder. When the water pressure decreases, the distance between the water outlet and the air outlet is farther, and the liquid can rely on its own gravity to form a certain diffusion angle before contacting the high-speed airflow. When it is subsequently mixed with the airflow, the shear force can act on the liquid along a wider angle, thereby expanding the spray diffusion range, and after the distance increases, the airflow can more evenly wrap the diffusing liquid, so that the droplets are dispersed over a larger range, indirectly expanding the effective coverage area; Preferably, the air supply assembly includes an air supply pipe fixed to the outer wall of the spray head shell, an air supply groove is opened on the inner wall of the spray head shell, and a gas output cavity is opened on the inner wall of the spray head shell; One end of the air delivery groove is communicated with the air delivery pipeline, and one end of the air delivery groove away from the air delivery pipeline is communicated with the gas output cavity.

[0013] Before the spraying starts, the air flow is fed into the air supply slot through the air supply pipe and then reaches the gas output chamber. After the spraying is finished, the particles remaining in the air may combine with the water remaining in the nozzle and clog the nozzle. Preferably, the protection assembly includes a limiting piston rod slidably connected to the inner wall of the gas output chamber, a limiting spring is fixedly connected to the outer wall of the bottom of the limiting piston rod, and a plurality of diverter plates are fixedly connected to the inner wall of the gas output chamber; The outer wall of one end of the limiting spring away from the limiting piston rod is fixedly connected to the top outer walls of the plurality of diverter plates.

[0014] Before the end of spraying, under the action of spraying water and high-speed airflow, the limiting piston rod will move away from the gas output chamber. When it moves to a certain extent, the airflow and water flow will pass through the surface of the limiting piston rod to reach the diverter plate. Through the action of the diverter plate, the generated water mist will be diverted, and at this time, the limiting spring will be compressed. When the spraying ends, the effects of the water flow and airflow weaken to disappear. At this time, the compressed limiting spring will have a reaction force on the limiting piston rod, causing the limiting piston rod to move toward the gas output chamber, thereby blocking the output channel of the gas output chamber, reducing the probability of residual solid-liquid mixture blocking the spray head shell, and reducing maintenance workload.

[0015] The present invention has the following beneficial effects: (1) The present invention is to solve the problem that in actual work, the amount of material may change at any time, and the spraying amount needs to change accordingly. When the amount of conveyed material suddenly increases, the dust emission increases. If the spraying amount is not increased synchronously, it will lead to untimely dust reduction; and when the amount of material decreases, excessive spraying will cause waste of water resources. A flow control mechanism is provided. As the conveyor belt runs, the material will reach the upper belt of the support bearing, and the weight of the material will press the conveyor belt down, and the support bearing will move toward the support rod. At the same time, the support spring will be compressed, and as the support bearing moves, the connection between the telescopic rod 1 and the support bearing will move with it. Further, the connection between the telescopic rod 1 and the connecting rod 1 will also move accordingly. At this time, the telescopic rod 1 and the connecting rod 1 will move accordingly. The movement trend of the connection between the retracted rod 1 and the connecting rod 1 will cause the connecting rod 1 and the connecting rod 2 to tend to be straightened, thereby driving the flow-limiting rod to move toward the end away from the valve body shell, so that the spray water flows out through the channel inside the valve body shell. Since the weight of the material input each time is different, the support bearing is compressed by a different amount each time, which in turn causes the movement distance of the connection between the connecting rod 1 and the connecting rod 2 to be different, and thus the movement distance of the flow-limiting rod to be different. At this time, the movement distance will change with the weight of the material, and ultimately the flow rate of the spray liquid passing through the valve body shell will change with the amount of material. When the amount of conveyed material suddenly increases, the dust emission increases, and the spray water passing through the valve body shell will increase, thereby better reducing dust. (2) In order to solve the problem that the water pressure is insufficient in the initial stage, resulting in insufficient kinetic energy of the liquid when it is sprayed from the nozzle, the liquid cannot be effectively broken into fine droplets, and the dust reduction effect is weakened, the present invention is provided with a control mechanism. After the spray water passes through the valve body shell to the connecting pipe, it will further pass through the liquid pipeline to the spray head shell, and further, the spray water will reach the surface of the piston rod. In the initial stage, the water pressure may not meet the requirements of the spraying due to various factors, resulting in a low spraying effect. Due to the existence of the piston rod, the spray water will not be able to flow outward at the beginning. At this time, as the water pressure increases, the piston rod will move away from the liquid pipeline. When the water pressure increases to a certain level, the piston rod will move to the connecting groove. At this time, the spray water will pass through the connecting groove to the top surface of the sliding output cylinder; (3) The present invention utilizes the operating mechanism of the above-mentioned mechanism. Since the water pressure may fluctuate at any time due to other factors such as the structure of the pipeline, the water mist of the spray will be uneven, and the dust reduction effect on the material will not be obvious. At this time, the change in water pressure will cause the piston rod to move different distances, and the movement of the piston rod will also cause the sliding output cylinder to move synchronously. Furthermore, the output port at the bottom of the sliding output cylinder will move with the change in water pressure, causing the distance between the water outlet and the air outlet of the sliding output cylinder to change when the spray water is output from the sliding output cylinder. When the water pressure decreases, the distance between the water outlet and the air outlet is farther. Before the liquid contacts the high-speed airflow, it can rely on its own gravity to form a certain diffusion angle. When it is subsequently mixed with the airflow, the shear force can act on the liquid along a wider angle, thereby expanding the spray diffusion range. After the distance increases, the airflow can more evenly wrap the diffusing liquid, so that the droplets are dispersed in a larger range, indirectly expanding the effective coverage area. (4) In order to solve the problem that the particles remaining in the air may combine with the water remaining in the nozzle and then clog the nozzle after the spray head ends, the present invention is provided with a protection mechanism. Before the spraying ends, under the action of the spraying water and the high-speed airflow, the limiting piston rod will move away from the gas output chamber. When it moves to a certain extent, the airflow and water flow will pass through the surface of the limiting piston rod to the diverter plate. The generated water mist is diverted by the diverter plate, and at this time, the limiting spring will be compressed. When the spraying ends, the action of the water flow and the airflow is weakened to disappear. At this time, the compressed limiting spring will have a reaction force on the limiting piston rod, causing the limiting piston rod to move toward the gas output chamber, thereby blocking the output channel of the gas output chamber, reducing the probability of the residual solid-liquid mixture clogging the spray head shell, and reducing the maintenance workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 Schematic cross-sectional view of the flow control mechanism of the present invention; Figure 4 It is a cross-sectional schematic diagram of the support assembly of the present invention; Figure 5 Schematic cross-sectional view of the flow control assembly of the present invention; Figure 6 Schematic diagram of the control mechanism of the present invention; Figure 7 It is a schematic cross-sectional view of the sliding assembly of the present invention; Figure 8 It is a cross-sectional schematic diagram of the protection mechanism of the present invention; Figure 9 It is a cross-sectional schematic diagram of the protection component of the present invention.

[0018] In the accompanying drawings, the components represented by the reference numerals are as follows: In the figure: 1, flow control mechanism; 11, support assembly; 12, flow control assembly; 13, support frame; 14, conveyor belt cover; 15, conveyor; 111, support rod; 112, support rod housing; 113, support spring; 114, support bearing; 115, telescopic rod 1; 116, telescopic rod 2; 117, liquid inlet pipe; 121, valve body shell; 122, connecting rod 1; 123, connecting rod 2; 124, flow limiting rod; 2, control mechanism; 21, control Control assembly; 22. Sliding assembly; 211. Connecting pipe; 212. Liquid pipeline; 213. Spray head housing; 214. Piston rod; 215. Return spring; 221. Connecting groove; 222. Sliding output cylinder; 223. Circulation groove; 3. Protection mechanism; 31. Air supply assembly; 32. Protection assembly; 311. Air supply pipeline; 312. Air supply groove; 313. Gas output chamber; 321. Limiting piston rod; 322. Limiting spring; 323. Diverter plate. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] For example 1, please refer to Figure 1 - Figure 8 The present invention is a conveying device for mining, comprising a support frame 13, a conveyor belt cover 14 fixedly connected to the outer wall of the support frame 13, a conveying device 15 fixedly connected to the outer wall of the conveyor belt cover 14, and further comprising: A flow control mechanism 1, the outer wall of which is fixedly connected to the outer wall of the conveyor belt cover 14, and the flow control mechanism 1 is used to control the flow of the liquid; The control mechanism 2 is fixedly connected to the inner wall of the flow control mechanism 1 at its outer wall, and is used to control the spray volume; The protection mechanism 3 is fixedly connected to the outer wall of the control mechanism 2 at its outer wall, and is used to protect the spray head; Two support rods 111 are fixedly connected to the outer wall of the conveyor belt cover 14, and a support rod shell 112 is slidably connected to the outer wall of the two support rods 111. A support spring 113 is fixedly connected to the outer wall of the support rod 111, and a support bearing 114 is slidably connected to the inner wall of the support rod shell 112 away from one end of the support rod 111.

[0021] The flow control mechanism 1 comprises: The support assembly 11, the outer wall of the support assembly 11 is fixedly connected to the outer wall of the support bearing 114; The flow control component 12 has an outer wall fixedly connected to the outer wall of the conveyor belt cover 14 .

[0022] The control mechanism 2 includes: The control component 21 is fixedly connected to the inner wall of the flow control component 12 at its outer wall; The sliding component 22 has an outer wall that is slidably connected to the inner wall of the control component 21 .

[0023] Protection mechanism 3 includes: An air supply component 31, wherein the outer wall of the air supply component 31 is fixedly connected to the outer wall of the control component 21; The protection component 32 has an outer wall that is slidably connected to the inner wall of the control component 21 .

[0024] The support assembly 11 includes a telescopic rod 115 fixedly connected to the outer wall of the support bearing 114, a telescopic rod 2 116 fixedly connected to the outer wall of the conveyor belt cover 14, and a liquid input pipe 117 fixedly connected to the outer wall of the conveyor belt cover 14.

[0025] When in use, first install the entire conveyor belt device on the outer wall of the support frame 13 and fix it, fix the spray device on the outer wall of the conveyor belt cover 14, connect the required spray water to the liquid input pipe 117, so that the liquid is input into the device through the liquid input pipe 117; When the conveyor belt starts to run, the material to be transported will first hit the surface of the conveyor belt where the conveyor belt drops. As the conveyor belt runs, the material will reach the belt above the support bearing 114. The weight of the material will press the conveyor belt down, and the support bearing 114 will move toward the support rod 111. At the same time, the support spring 113 will be compressed. As the support bearing 114 moves, the connection between the telescopic rod 115 and the support bearing 114 will move with it. The flow control assembly 12 includes a valve body shell 121 fixedly connected to the outer wall of the conveyor cover 14, a connecting rod 122 rotatably connected to the outer wall of the telescopic rod 115, a connecting rod 2 123 rotatably connected to the outer wall of the telescopic rod 2 116, and a flow limiting rod 124 rotatably connected to the inner wall of the end of the connecting rod 123 away from the telescopic rod 2 116; The inner wall of the connecting rod 122 is rotatably connected to the outer wall of the flow limiting rod 124 , and the inner wall of the valve body shell 121 is slidably connected to the outer wall of the flow limiting rod 124 .

[0026] Furthermore, the connection between the telescopic rod 115 and the connecting rod 122 will also move accordingly. At this time, the movement trend of the connection between the telescopic rod 115 and the connecting rod 122 will cause the connecting rod 122 and the connecting rod 2 123 to be straightened, and the telescopic rod 2 116 will have a tendency to stretch at this time. Further, the connection between the connecting rod 122 and the telescopic rod 115 and the connection between the connecting rod 2 123 and the telescopic rod 2 116 will move away from each other, thereby causing the connection between the connecting rod 122 and the connecting rod 2 123 to move in the direction away from the valve body shell 121. Since the connection between the connecting rod 122 and the connecting rod 2 123 is rotatably connected to the flow limiting rod 124, The limiting rod 124 is driven to move toward the end away from the valve body shell 121, so that the spray water flows out through the channel inside the valve body shell 121. Since the weight of the material input each time is different, the support bearing 114 is compressed by a different amount each time, which in turn causes the connection between the connecting rod 122 and the connecting rod 2 123 to move a different distance, thereby causing the limiting rod 124 to move a different distance. At this time, the moving distance will change with the weight of the material, and ultimately the flow rate of the spray liquid passing through the valve body shell 121 will change with the amount of material. When the amount of conveyed material suddenly increases, the dust emission increases, and the spray water passing through the valve body shell 121 will increase, thereby better reducing dust. For example 2, please refer to Figure 2 - Figure 9 The present invention is a conveying device for mining. Based on Example 1, the control component 21 includes a connecting pipe 211 fixedly connected to the outer wall of the valve body shell 121, a liquid pipeline 212 fixedly connected to the outer wall of the connecting pipe 211, a plurality of spray head shells 213 fixedly connected to the inner wall of the liquid pipeline 212, a piston rod 214 slidably connected to the inner wall of the spray head shell 213, and a return spring 215 fixedly connected to the outer wall of the bottom of the piston rod 214; The outer wall of the end of the return spring 215 away from the piston rod 214 is fixedly connected to the inner wall of the spray head housing 213 .

[0027] After the spray water passes through the valve body shell 121 and reaches the connecting pipe 211, it will further pass through the liquid pipe 212 and reach the spray head shell 213. Further, the spray water will reach the surface of the piston rod 214. In the initial stage, the water pressure may not meet the spraying requirements due to various factors, resulting in a low spraying effect. Due to the existence of the piston rod 214, the spray water will not be able to flow out at the beginning. The sliding assembly 22 includes a plurality of connecting grooves 221 formed on the inner wall of the spray head housing 213. A sliding output cylinder 222 is slidably connected to the inner wall of the spray head housing 213. A plurality of flow grooves 223 are formed on the top outer wall of the sliding output cylinder 222. The top outer wall of the sliding output cylinder 222 is fixedly connected to the bottom outer wall of the piston rod 214 .

[0028] As the water pressure increases, the piston rod 214 moves away from the liquid pipe 212. When the water pressure increases to a certain level, the piston rod 214 moves to the connecting groove 221. At this time, the spray water passes through the connecting groove 221 and reaches the top surface of the sliding output cylinder 222. However, since the water pressure may fluctuate at any time due to other factors such as the structure of the pipeline, the sprayed water mist may be uneven, and the dust reduction effect on the material may be insignificant. At this time, due to the change in water pressure, the piston rod 214 may move different distances, and the movement of the piston rod 214 may also cause the sliding output cylinder 222 to move synchronously. Furthermore, the output port at the bottom end of the sliding output cylinder 222 may move accordingly with the change in water pressure, thereby causing the distance between the water outlet and the air outlet of the sliding output cylinder 222 to change when the spray water is output from the sliding output cylinder 222. When the water pressure decreases, the distance between the water outlet and the air outlet is farther, and the liquid can rely on its own gravity to form a certain diffusion angle before contacting the high-speed airflow. Subsequently, when it mixes with the airflow, the shear force can act on the liquid along a wider angle, thereby expanding the spray diffusion range. Moreover, after the distance increases, the airflow can more evenly wrap the diffusing liquid, causing the droplets to be dispersed over a larger range, thereby indirectly expanding the effective coverage area. The air supply assembly 31 includes an air supply pipe 311 fixed to the outer wall of the spray head housing 213, an air supply groove 312 is opened on the inner wall of the spray head housing 213, and a gas output cavity 313 is opened on the inner wall of the spray head housing 213; One end of the air delivery groove 312 is communicated with the air delivery pipe 311 , and one end of the air delivery groove 312 away from the air delivery pipe 311 is communicated with the gas output chamber 313 .

[0029] Before spraying begins, the air flow is fed into the air delivery slot 312 through the air delivery pipe 311 and then reaches the gas output chamber 313. After spraying is completed, the particles remaining in the air may combine with the water remaining in the nozzle and clog the nozzle. The protection assembly 32 includes a limiting piston rod 321 slidably connected to the inner wall of the gas output chamber 313, a limiting spring 322 fixedly connected to the bottom outer wall of the limiting piston rod 321, and a plurality of diverter plates 323 fixedly connected to the inner wall of the gas output chamber 313; The outer wall of one end of the limiting spring 322 away from the limiting piston rod 321 is fixedly connected to the top outer walls of the plurality of diverter plates 323 .

[0030] Before the end of spraying, under the action of spraying water and high-speed airflow, the limiting piston rod 321 will move away from the gas output chamber 313. When it moves to a certain extent, the airflow and water flow will pass through the surface of the limiting piston rod 321 to reach the diverter plate 323. The generated water mist will be diverted by the action of the diverter plate 323, and at this time, the limiting spring 322 will be compressed. When the spraying is ended, the effect of the water flow and airflow will weaken to disappear. At this time, the compressed limiting spring 322 will have a reaction force on the limiting piston rod 321, causing the limiting piston rod 321 to move toward the gas output chamber 313, thereby blocking the output channel of the gas output chamber 313, reducing the probability of residual solid-liquid mixture blocking the spray head housing 213, and reducing maintenance workload.

[0031] A specific application of this embodiment is as follows: when in use, first, the entire conveyor belt device is mounted on the outer wall of the support frame 13 and fixed, the spray device is fixed on the outer wall of the conveyor belt cover 14, and the required spray water is connected to the liquid input pipe 117 so that the liquid is input into the device through the liquid input pipe 117; When the conveyor belt starts to run, the material to be transported will first contact the surface of the conveyor belt at the material drop point of the conveyor belt. As the conveyor belt runs, the material will reach the belt above the support bearing 114, and as the weight of the material will press the conveyor belt down, the support bearing 114 will move toward the support rod 111, and at the same time, the support spring 113 will be compressed. As the support bearing 114 moves, the connection between the telescopic rod 115 and the support bearing 114 will move with it. Further, the connection between the telescopic rod 115 and the connecting rod 1 122 will also move accordingly. At this time, the movement trend of the connection between the telescopic rod 115 and the connecting rod 1 122 will cause the connecting rod 1 122 and the connecting rod 2 123 to tend to straighten, and the telescopic rod 2 116 will tend to stretch at this time. Further, the connection between the connecting rod 1 122 and the telescopic rod 1 115 and the connection between the connecting rod 2 123 and the telescopic rod 2 116 The connecting rods 122 and 123 are moved away from each other, thereby causing the connection between the connecting rod 122 and the connecting rod 2 123 to move in the direction away from the valve body shell 121. Since the connection between the connecting rod 122 and the connecting rod 2 123 is rotatably connected to the flow-limiting rod 124, the flow-limiting rod 124 is driven to move toward the end away from the valve body shell 121, so that the spray water flows out through the channel inside the valve body shell 121. Since the weight of the material input each time is different, the support bearing 114 is compressed by a different amount each time, thereby causing the connection between the connecting rod 122 and the connecting rod 2 123 to move a different distance, thereby causing the flow-limiting rod 124 to move a different distance. At this time, the moving distance will change with the weight of the material, and ultimately the flow rate of the spray liquid passing through the valve body shell 121 will change with the amount of material. When the amount of conveyed material suddenly increases, the dust emission increases, and the spray water passing through the valve body shell 121 will increase, thereby better reducing dust. After the spray water reaches the connecting pipe 211 through the valve body shell 121, it will further reach the spray head shell 213 through the liquid pipe 212, and then reach the surface of the piston rod 214. In the initial stage, the water pressure may not meet the spraying requirements due to various factors, resulting in a low spraying effect. Due to the presence of the piston rod 214, the spray water will not be able to flow out at the beginning. At this time, as the water pressure increases, the piston rod 214 will move away from the liquid pipe 212. When the water pressure increases to a certain level, the piston rod 214 will move to the connecting groove 221. At this time, the spray water will pass through the connecting groove 221 and reach the top surface of the sliding output cylinder 222. However, since the water pressure may fluctuate at any time due to other factors such as the structure of the pipeline, the sprayed water mist may be uneven, and the dust reduction effect on the material may be insignificant. At this time, due to the change in water pressure, the piston rod 214 may move different distances, and the movement of the piston rod 214 may also cause the sliding output cylinder 222 to move synchronously. Furthermore, the output port at the bottom end of the sliding output cylinder 222 may move accordingly with the change in water pressure, thereby causing the distance between the water outlet and the air outlet of the sliding output cylinder 222 to change when the spray water is output from the sliding output cylinder 222. When the water pressure decreases, the distance between the water outlet and the air outlet is farther, and the liquid can rely on its own gravity to form a certain diffusion angle before contacting the high-speed airflow. Subsequently, when it mixes with the airflow, the shear force can act on the liquid along a wider angle, thereby expanding the spray diffusion range. Moreover, after the distance increases, the airflow can more evenly wrap the diffusing liquid, causing the droplets to be dispersed over a larger range, thereby indirectly expanding the effective coverage area. Before the spraying starts, the air flow is input into the air delivery groove 312 through the air delivery pipe 311 and then reaches the gas output chamber 313. After the spraying is completed, the particulate matter remaining in the air may combine with the water remaining in the nozzle and thus block the nozzle. Before the spraying ends, under the action of the spraying water and the high-speed air flow, the limiting piston rod 321 will move away from the gas output chamber 313. When it moves to a certain extent, the air flow and water flow will pass through the surface of the limiting piston rod 321 and reach the diverter plate 323. The generated water mist is diverted by the action of the diverter plate 323, and at this time, the limiting spring 322 will be compressed. When the spraying ends, the action of the water flow and the air flow weakens to disappear. At this time, the compressed limiting spring 322 will have a reaction force on the limiting piston rod 321, causing the limiting piston rod 321 to move toward the gas output chamber 313, thereby blocking the output channel of the gas output chamber 313, reducing the probability of the residual solid-liquid mixture blocking the spray head housing 213 and reducing the maintenance workload.

[0032] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A conveying device for mining, comprising a support frame (13), a conveyor belt cover (14) fixedly connected to the outer wall of the support frame (13), and a conveying device (15) fixedly connected to the outer wall of the conveyor belt cover (14), characterized in that: Also includes: A flow control mechanism (1), wherein the outer wall of the flow control mechanism (1) is fixedly connected to the outer wall of the conveyor belt cover (14), and the flow control mechanism (1) is used to control the flow of the liquid; A control mechanism (2), wherein the outer wall of the control mechanism (2) is fixedly connected to the inner wall of the flow control mechanism (1), and the control mechanism (2) is used to control the amount of spray; A protection mechanism (3), wherein the outer wall of the protection mechanism (3) is fixedly connected to the outer wall of the control mechanism (2), and the protection mechanism (3) is used to protect the spray head; Two support rods (111) are fixedly connected to the outer wall of the conveyor belt cover (14); support rod housings (112) are slidably connected to the outer walls of the two support rods (111); support springs (113) are fixedly connected to the outer walls of the support rods (111); and a support bearing (114) is slidably connected to the inner wall of the support rod housing (112) at one end away from the support rod (111).

2. A conveying device for mining according to claim 1, characterized in that: The flow control mechanism (1) comprises: A support assembly (11), wherein an outer wall of the support assembly (11) is fixedly connected to an outer wall of the support bearing (114); A flow control component (12), wherein the outer wall of the flow control component (12) is fixedly connected to the outer wall of the conveyor belt outer cover (14).

3. A conveying device for mining according to claim 2, characterized in that: The control mechanism (2) comprises: A control component (21), wherein the outer wall of the control component (21) is fixedly connected to the inner wall of the flow control component (12); A sliding component (22), wherein the outer wall of the sliding component (22) is slidably connected to the inner wall of the control component (21).

4. A conveying device for mining according to claim 3, characterized in that: The protection mechanism (3) comprises: An air supply assembly (31), wherein the outer wall of the air supply assembly (31) is fixedly connected to the outer wall of the control assembly (21); A protection component (32), wherein the outer wall of the protection component (32) is slidably connected to the inner wall of the control component (21).

5. The conveying device for mining according to claim 4, characterized in that: The support assembly (11) includes a telescopic rod (115) fixedly connected to the outer wall of the support bearing (114), a telescopic rod (116) fixedly connected to the outer wall of the conveyor belt outer cover (14), and a liquid input pipe (117) fixedly connected to the outer wall of the conveyor belt outer cover (14).

6. The conveying device for mining according to claim 5, characterized in that: The flow control assembly (12) includes a valve body shell (121) fixedly connected to the outer wall of the conveyor belt cover (14); the outer wall of the telescopic rod (115) is rotatably connected to the connecting rod (122); the outer wall of the telescopic rod (116) is rotatably connected to the connecting rod (123); the connecting rod (123) is rotatably connected to the flow limiting rod (124) at the inner wall of one end away from the telescopic rod (116); The inner wall of the connecting rod 1 (122) is rotatably connected to the outer wall of the flow limiting rod (124), and the inner wall of the valve body shell (121) is slidably connected to the outer wall of the flow limiting rod (124).

7. The conveying device for mining according to claim 6, characterized in that: The control assembly (21) includes a connecting pipe (211) fixedly connected to the outer wall of the valve body shell (121), a liquid pipeline (212) fixedly connected to the outer wall of the connecting pipe (211), a plurality of spray head shells (213) fixedly connected to the inner wall of the liquid pipeline (212), a piston rod (214) slidably connected to the inner wall of the spray head shell (213), and a return spring (215) fixedly connected to the outer wall of the bottom of the piston rod (214); The outer wall of the return spring (215) at one end away from the piston rod (214) is fixedly connected to the inner wall of the spray head housing (213).

8. The conveying device for mining according to claim 7, characterized in that: The sliding assembly (22) includes a plurality of communication grooves (221) formed on the inner wall of the spray head housing (213); a sliding output cylinder (222) is slidably connected to the inner wall of the spray head housing (213); and a plurality of flow grooves (223) are formed on the top outer wall of the sliding output cylinder (222); The top outer wall of the sliding output cylinder (222) is fixedly connected to the bottom outer wall of the piston rod (214).

9. The conveying device for mining according to claim 8, characterized in that: The air supply assembly (31) includes an air supply pipe (311) fixed to the outer wall of the spray head housing (213), an air supply groove (312) is provided on the inner wall of the spray head housing (213), and a gas output cavity (313) is provided on the inner wall of the spray head housing (213); One end of the air delivery groove (312) is in communication with the air delivery pipe (311), and one end of the air delivery groove (312) away from the air delivery pipe (311) is in communication with the gas output chamber (313).

10. The conveying device for mining according to claim 9, characterized in that: The protection assembly (32) comprises a limiting piston rod (321) slidably connected to the inner wall of the gas output chamber (313); a limiting spring (322) is fixedly connected to the outer wall of the bottom of the limiting piston rod (321); and a plurality of diverter plates (323) are fixedly connected to the inner wall of the gas output chamber (313); The outer wall of one end of the limiting spring (322) away from the limiting piston rod (321) is fixedly connected to the top outer walls of the plurality of diverter plates (323).

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