Dust fall device for ore extraction

Abstract

The invention relates to the technical field of dust falling devices, and provides a dust falling device for ore mining, the dust falling device comprises a storage platform, a support opening mechanism, a spraying mechanism and a negative pressure dust collection mechanism, the support opening mechanism is used for supporting the spraying mechanism, the spraying mechanism is in contact with the top of a belt corridor during spraying, and the negative pressure dust collection mechanism is used for collecting dust in the belt corridor. The multiple conduction chain links are rotationally connected end to end and detachably connected with the supporting and opening mechanism, the negative pressure dust collection mechanism is used for sucking and collecting dust-containing gas, and when the conduction chain links make contact with the top of the belt corridor, nozzles are fixedly formed in the conduction chain links and are formed in the sides, close to the negative pressure dust collection mechanism, of the conduction chain links. By means of the technical scheme, the problem that in the prior art, a spraying device capable of moving in a belt corridor is difficult to make close contact with irregular parts in a mine during use, and mine dust cannot be sufficiently settled is solved.

Description

Technical Field

[0001] The invention relates to industrial and mining engineering construction, and more specifically to the technical field of dust reduction devices. Specifically, it relates to a dust reduction device for ore mining. Background Art

[0002] During the process of mine exploitation, it is inevitable to generate a large amount of dust and slag. However, the harm of dust is extremely great. When the concentration of dust in the air reaches a certain level, it may cause a dust explosion when encountering a spark. The substances in the mine dust will also cause great damage to the workers' bodies. Therefore, it is very important to reduce the dust during the process of ore mining.

[0003] When reducing dust in an open-pit mine, it is mostly through large-scale spraying. In the belt corridor of the mine shaft, it is mostly through creating a water curtain to block and reduce the dust in the air. Spray nozzles are installed at the top of the belt corridor, and a water curtain is created through spraying to reduce the dust of the mine dust moving with the air flow in the passage. The traditional spray device is fixedly installed on the belt corridor. As the drilling device advances, the distance between the spray device and the drilling device gradually increases, and the dust reduction effect that can be achieved gradually decreases. Most spray devices cannot move, and the size of the spray part on some movable spray devices is fixedly set. The size and shape of the passage at the drilling position are not regular, and it is difficult for the spray part to be in close contact with the passage, resulting in more mine dust flowing out and it being difficult to fully reduce the dust. Summary of the Invention

[0004] The invention provides a dust reduction device for ore mining, which is used to solve the problem that in the prior art, the movable spray device in the belt corridor is difficult to be in close contact with the irregular parts in the mine shaft during use, which may cause the mine dust to not be fully reduced.

[0005] The technical solution of the invention is as follows: A dust reduction device for ore mining, comprising a storage platform, a support and expansion mechanism, a spraying mechanism and a negative pressure dust collection mechanism. The storage platform is placed on the ground of the belt corridor. A support and expansion mechanism is rotatably connected to the storage platform. The support and expansion mechanism is rotatably connected to both ends of the storage platform. A spraying mechanism is detachably connected to the support and expansion mechanism. The support and expansion mechanism is used to support the spraying mechanism. The spraying mechanism is used to spray and reduce dust in the belt corridor. When the spraying mechanism sprays, it contacts the top of the belt corridor. The spraying mechanism includes conduction links. There are multiple conduction links. The multiple conduction links are rotatably connected end to end. The conduction links are detachably connected to the support and expansion mechanism. The negative pressure dust collection mechanism is arranged on the storage platform. The support and expansion mechanism is detachably connected to the negative pressure dust collection mechanism. The negative pressure dust collection mechanism is used to suck and collect the dust-containing gas. Nozzles are fixedly arranged on the conduction links. When the conduction links contact the top of the belt corridor, the nozzles are arranged on the side of the conduction links close to the negative pressure dust collection mechanism.

[0006] The support and expansion mechanism includes a sliding storage component and a connecting support component. The sliding storage component is rotatably connected to one end of the storage platform. The sliding storage component is slidably connected to the spraying mechanism. The connecting support component is rotatably connected to the end of the storage platform far from the sliding storage component. The connecting support component is detachably connected to the spraying mechanism. The sliding storage component and the connecting support component are arranged oppositely. The connecting support component includes a first storage rod and a first extension rod. The first storage rod is rotatably connected to the storage platform. The first extension rod is slidably connected to the first storage rod. The first extension rod is detachably connected to one of the multiple conduction links far from the sliding storage component.

[0007] The sliding storage component includes a second storage rod and a second extension rod. The second storage rod is rotatably connected to the storage platform. A clamping member is arranged on the second storage rod. The clamping member is connected to the spraying mechanism. The second extension rod is slidably connected to the second storage rod. The conduction links are slidably arranged in the second extension rod.

[0008] The conduction links are arranged in an arc shape. Rotating shafts are arranged at both ends of the conduction links close to the inner circle. The rotating shafts can be rotatably connected to the rotating shafts on other conduction links. The conduction links are arranged in a hollow shape.

[0009] The spray mechanism includes a water delivery pipe, a clamping groove, and an air delivery pipe. The water delivery pipe penetrates through multiple conduction links. The water delivery pipe penetrates through the second storage rod and the second extension rod. The water delivery pipe is connected to the clamping member. The water delivery pipe is communicated with the spray nozzles on multiple conduction links. One end of the water delivery pipe near the first extension rod is set to be closed, and the conduction link rotatably connected to the first extension rod is fixedly connected to the closed end of the water delivery pipe. The clamping groove is opened on the conduction link. A C-shaped clamping member is detachably connected to the clamping groove. An air delivery pipe is detachably connected to the C-shaped clamping member.

[0010] A plurality of air outlets are opened on the side of the air delivery pipe away from the conduction link. An elastic air curtain is arranged on the air outlet. When the air pressure in the air delivery pipe is relatively high, gas can be ejected through the elastic air curtain.

[0011] The clamping member is arranged on the side of the second storage rod near the storage platform. The water delivery pipe is stored in the second storage rod.

[0012] The negative pressure dust collection mechanism includes an inclined arc groove, a sector-shaped air outlet, and an air extraction port. The inclined arc groove is opened above the storage platform. The sector-shaped air outlet is rotatably connected to the inclined arc groove. The sector-shaped air outlet can rotate on the inclined arc groove towards the direction of the air delivery pipe. The air extraction port is arranged in the storage platform. The air extraction port is connected to the sector-shaped air outlet. An air extraction pipe is connected to the air extraction port. The air extraction pipe penetrates through the storage platform.

[0013] A groove is opened above the sector-shaped air outlet. The sliding storage assembly and the connection support assembly can be rotated into the groove in the sector-shaped air outlet.

[0014] The working principle and beneficial effects of the present invention are as follows: 1. In the present invention, by arranging conduction links and a water delivery pipe, a chain that can only perform one-way bending rotation is formed through the rotational connection of multiple conduction links. At the same time, under the thrust of the water delivery pipe when it is filled with water, it bends upward to fit as closely as possible to the top of the channel, so that it can cope with channels of various sizes and shapes and can perform spraying. At the same time, it is also convenient for curling and storage. Compared with the prior art, it has stronger adaptability and is easier to move. 2. In the present invention, by arranging the support opening mechanism, it is convenient for storage while also being able to cope with channels with a larger width. By arranging the spray mechanism, it can adapt to belt galleries of various sizes, reducing the outflow of mine dust through the gaps between the spray device and the side walls. By arranging the negative pressure dust collection mechanism, on the one hand, it is convenient for the storage of the support opening mechanism, and on the other hand, it can adjust the angle of the sector-shaped air outlet according to the flow direction of the air containing mine dust during dust reduction, so as to efficiently suck mine dust. Description of the Drawings

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] Figure 1 It is a schematic diagram of the overall structure in the present invention; Figure 2 It is a schematic diagram of the overall structure from another perspective in the present invention; Figure 3 It is a schematic diagram of the partial structure where the conduction link and the air supply pipe cooperate in the present invention; Figure 4 It is a schematic diagram of the partial structure of the sliding storage assembly in the present invention; Figure 5 It is a schematic diagram of the partial internal structure of the second extension rod in the present invention; Figure 6 It is a schematic diagram of the internal sectional structure of the storage platform in the present invention; Figure 7 It is a schematic diagram of the internal sectional structure of the air extraction port in the present invention.

[0017] In the figure: 1, storage platform; 2, conduction link; 3, nozzle; 4, first storage rod; 5, first extension rod; 6, second storage rod; 7, second extension rod; 8, clamping member; 9, rotating shaft; 10, water delivery pipe; 11, clamping groove; 12, C-shaped clamping member; 13, air supply pipe; 14, elastic air curtain; 15, inclined arc groove; 16, fan-shaped air outlet; 17, air extraction port; 18, air extraction pipe; 19, groove. Specific Embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0019] Such as Figures 1 to 7As shown, the dust reduction device of the present invention belongs to industrial and mining engineering construction. In this embodiment, a dust reduction device for ore mining is proposed, which includes a storage platform 1, a support opening mechanism, a spray mechanism, and a negative pressure dust collection mechanism. The storage platform 1 is placed on the ground of the belt corridor. A support opening mechanism is rotatably connected to the storage platform 1, and the support opening mechanism is rotatably connected to both ends of the storage platform 1. A spray mechanism is detachably connected to the support opening mechanism. The support opening mechanism is used to support the spray mechanism, and the spray mechanism is used to spray and reduce dust in the belt corridor. When the spray mechanism sprays, it contacts the top of the belt corridor. The spray mechanism includes a conduction link 2. There are multiple conduction links 2, and the multiple conduction links 2 are rotatably connected end to end. The conduction link 2 is detachably connected to the support opening mechanism. The negative pressure dust collection mechanism is arranged on the storage platform 1, and the support opening mechanism is detachably connected to the negative pressure dust collection mechanism. The negative pressure dust collection mechanism is used to suck and collect the dust-containing gas. A spray port 3 is fixedly arranged on the conduction link 2. When the conduction link 2 contacts the top of the belt corridor, the spray port 3 is arranged on the side of the conduction link 2 close to the negative pressure dust collection mechanism. When dust reduction is carried out, the dust reduction device can be moved in the drilling channel, moved to a position near the drilling position, the air supply pipe 13 is connected to the fan at the rear, the air supply pipe 13 supplies air to the drilling position, the water supply pipe 10 is connected to the water pump, and water injection is sprayed through the spray port 3. The water mist contacts the mine dust in the air for dust reduction. The suction pipe 18 is connected to an external air pump, sucks the gas mixed with water mist and mine dust, and separates the mine dust at the rear. Compared with the traditional spray device, the present application can be flexibly moved, and the traditional spray device needs to be installed after being built into a standard size in the belt corridor. In the present application, a structure similar to a chain can be formed by connecting multiple conduction links 2. After the water supply pipe 10 is filled with water, under the action of water pressure, the chain is pushed to contact the top of the channel, and then a water curtain can be created in the unbuilt standard-size drilling for dust reduction.

[0020] As Figures 1 to 5As shown in the figure, the support and opening mechanism includes a sliding and storage component and a connecting and supporting component. The sliding and storage component is rotatably connected to one end of the storage platform 1. The sliding and storage component is slidably connected to the spraying mechanism. The connecting and supporting component is rotatably connected to the end of the storage platform 1 far from the sliding and storage component. The connecting and supporting component is detachably connected to the spraying mechanism. The sliding and storage component and the connecting and supporting component are arranged oppositely. The connecting and supporting component includes a first storage rod 4 and a first extension rod 5. The first storage rod 4 is rotatably connected to the storage platform 1. The first extension rod 5 is slidably connected to the first storage rod 4. The first extension rod 5 is detachably connected to one of the plurality of conduction links 2 far from the sliding and storage component. The sliding and storage component includes a second storage rod 6 and a second extension rod 7. The second storage rod 6 is rotatably connected to the storage platform 1. A clamping member 8 is arranged on the second storage rod 6. The clamping member 8 is connected to the spraying mechanism. The second extension rod 7 is slidably connected to the second storage rod 6. The conduction link 2 is slidably arranged in the second extension rod 7. The clamping member 8 is arranged on the side of the second storage rod 6 close to the storage platform 1. The water delivery pipe 10 is stored in the second storage rod 6. The first storage rod 4 and the second storage rod 6 can rotate at a large angle on the storage platform 1. When the diameter of the channel is large, the first storage rod 4 and the second storage rod 6 can rotate and open towards both sides of the storage platform 1 respectively. At the same time, through the sliding elongation of the first extension rod 5 and the second extension rod 7, the coverage range of the spraying mechanism can be extended. A plurality of card slots are arranged on both the first extension rod 5 and the second extension rod 7 for limiting their sliding extension. After the first storage rod 4 and the second storage rod 6 rotate and open, water can be passed through the water delivery pipe 10. Due to the one-way rotation of the chain composed of the conduction links 2, the water pressure can push the water delivery pipe 10 towards the top of the channel until it contacts the top. At the same time, the rotating shaft 9 on the end conduction link 2 is rotatably connected to the first extension rod 5. At this time, a structure similar to an arch bridge is completed, and spraying dust suppression can be carried out. At the same time, due to the detachable connection between the first extension rod 5 and the conduction link 2, when there are pipelines or equipment in the drilling channel, the spraying equipment can be connected after surrounding the pipelines or equipment, which does not affect the installation of the dust suppression device. Compared with some existing dust suppression devices that are set in the shape of an arch door, when there are long pipelines in the pipeline, they cannot be used, and it has higher convenience. When the sliding and storage component and the connecting and supporting component are stored, after the first extension rod 5 and the second extension rod 7 are respectively slid into the first storage rod 4 and the second storage rod 6, they can be rotated and stored in the groove 19. The chain composed of the conduction links 2 can be rotated and wound for storage. Only part of the transmission links can be stored in the second extension rod 7. When the channel is large, the transmission links can slide out of the second extension rod 7. When storing, the water delivery pipe 10 and the transmission links can slide into the second extension rod 7 for partial storage.

[0021] As Figures 3 to 5As shown, the conductive chain link 2 is arranged in an arc shape, and rotating shafts 9 are arranged at both ends of the conductive chain link 2 close to the inner circle, through which the rotating shafts 9 on other conductive chain links 2 can be rotatably connected. The conductive chain link 2 is arranged in a hollow shape, and the water pipe 10 passes through multiple conductive chain links 2, and the conductive chain links 2 also protect the water pipe 10.

[0022] like Figures 3 to 5 As shown, the spray mechanism includes a water pipe 10, a clamping groove 11 and an air supply pipe 13. The water pipe 10 passes through a plurality of conductive links 2, the water pipe 10 passes through a receiving rod 2 6 and an extension rod 2 7, the water pipe 10 is connected to a clamping member 8, the water pipe 10 is connected to the nozzles 3 on the plurality of conductive links 2, one end of the water pipe 10 close to the extension rod 1 5 is set in a closed shape, and the conductive link 2 rotatably connected to the extension rod 1 5 is connected to the closed end of the water pipe 10 The clamping groove 11 is fixedly connected to the conductive chain link 2, and a C-shaped clamp 12 is detachably connected to the clamping groove 11. An air supply pipe 13 is detachably connected to the C-shaped clamp 12. A plurality of air outlets are provided on the air supply pipe 13 on the side away from the conductive chain link 2. An elastic air curtain 14 is provided on the air outlet. When the air pressure in the air supply pipe 13 is relatively high, the gas can be ejected through the elastic air curtain 14. After the transmission chain link contacts the top of the pipeline, the C-shaped clamp 1 2 is connected with the card groove 11 on the transmission chain link leaving the extension rod 2 7, so that the air supply pipe 13 is fitted with the transmission chain link. When the air pressure of the air pump is high, the elastic air curtain 14 opens and the gas is ejected. The gas is blown toward the drilling position to drive the gas flow. On the one hand, it can drive the mine dust to flow. The mine dust can be more effectively reduced when it is close to the water curtain. On the other hand, it can also send external air into the mine to increase the oxygen content in the air and reduce the gas content, which is more conducive to the safety during the drilling process. When the water pressure in the water pipe 10 is high, the filling volume of the water pipe 10 becomes larger and drives the transmission chain link to move. After that, as the water pressure increases, water is ejected through the nozzle 3 to form water mist. Slots are also provided on the sides of the storage rod 2 6 and the extension rod 2 7, so that the nozzle 3 on the conduction chain link 2 in the extension rod 2 7 can also spray water mist outward. The water mist sprayed by multiple nozzles 3 forms a water curtain to intercept the mine dust in the air.

[0023] like Figures 6 to 7As shown in the figure, the negative pressure dust collection mechanism includes an inclined arc groove 15, a fan-shaped air outlet 16, and an air extraction port 17. The inclined arc groove 15 is opened above the storage platform 1. The fan-shaped air outlet 16 is rotatably connected to the inclined arc groove 15. The fan-shaped air outlet 16 can rotate on the inclined arc groove 15 towards the direction of the air supply pipe 13. The air extraction port 17 is arranged in the storage platform 1 and is connected to the fan-shaped air outlet 16. A suction pipe 18 is connected to the air extraction port 17. The suction pipe 18 penetrates through the storage platform 1. A groove 19 is opened above the fan-shaped air outlet 16. The sliding storage component and the connection support component can be rotated into the groove 19 in the fan-shaped air outlet 16. The inclined arc groove 15 is composed of two arc plates with different lengths. The fan-shaped air outlet 16 can rotate concentrically between the two arc plates. The fan-shaped air outlet 16 can rotate and incline towards the direction of the shorter arc plate, so that the fan-shaped air outlet 16 faces the side where the air supply pipe 13 is arranged. Air is blown towards the drilling area through the elastic air curtain 14, and air is sucked through the fan-shaped air outlet 16, so that the gas flows in a cycle. The air extraction port 17 can rotate along with the fan-shaped air outlet 16. The suction pipe 18 is a flexible pipe. When rotating and storing the first storage rod 4 and the second storage rod 6, the fan-shaped air outlet 16 is rotated to the horizontal position. At this time, the first storage rod 4 and the second storage rod 6 are rotated into the groove 19 for storage.

[0024] In this embodiment, the storage platform 1 is placed at the position where dust reduction is required. The first storage rod 4 and the second storage rod 6 are rotated and opened. The sliding extension rod 1 and the extension rod 7 are extended. The conduction link 2 rotating shaft 9 and the extension rod 1 are connected. Water is passed through the water supply pipe 10 and pressurized. The water pressure fills the water supply pipe 10. The water supply pipe 10 coiled in the second storage rod 6 is filled with water. The clamping member 8 fixes the water supply pipe 10, so that the water supply pipe 10 in the second storage rod 6 pushes the conduction link 2 in the extension rod 7 to move outwards. At the same time, the water supply pipe 10 in the conduction link 2 drives the chain composed of the conduction link 2 to bend inwards, and the whole moves upwards until it contacts the top of the drilling channel. Along with the movement of the conduction link 2, the C-shaped clamping member 12 is docked with the clamping groove 11. The fan-shaped air outlet 16 is rotated to face the drilling position. At this time, the air pump is pressurized, and the air pushes the elastic air curtain 14 to open and eject gas. The water pump is pressurized, and water is ejected through the nozzle 3 to form a water curtain. The suction pump is started to suck the gas mixed with mineral dust and water mist to achieve dust reduction.

[0025] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dust reduction device for ore mining, characterized in that, Comprising: A storage platform (1) placed on the ground of the belt corridor, and a support opening mechanism is rotatably connected to the storage platform (1); The support opening mechanism is rotatably connected to both ends of the storage platform (1), and a spray mechanism is detachably connected to the support opening mechanism, and the support opening mechanism is used to support the spray mechanism; The spray mechanism is used for spraying and dust reduction in the belt corridor. When the spray mechanism sprays, it contacts the top of the belt corridor. The spray mechanism includes conduction links (2). A plurality of the conduction links (2) are provided, and the plurality of conduction links (2) are rotatably connected end to end. The conduction links (2) are detachably connected to the support opening mechanism; A negative pressure dust collection mechanism is arranged on the storage platform (1). The support opening mechanism is detachably connected to the negative pressure dust collection mechanism, and the negative pressure dust collection mechanism is used for sucking and collecting dust-containing gas; A spray nozzle (3) is fixedly arranged on the conduction link (2). When the conduction link (2) contacts the top of the belt corridor, the spray nozzle (3) is arranged on the side of the conduction link (2) close to the negative pressure dust collection mechanism.

2. The dust reduction device for ore mining according to claim 1, characterized in that, The support opening mechanism includes: A sliding storage assembly rotatably connected to one end of the storage platform (1), and the sliding storage assembly is slidably connected to the spray mechanism; A connecting support assembly rotatably connected to the end of the storage platform (1) far from the sliding storage assembly, and the connecting support assembly is detachably connected to the spray mechanism; The sliding storage assembly and the connecting support assembly are arranged oppositely; The connecting support assembly includes a first storage rod (4) and a first extension rod (5). The first storage rod (4) is rotatably connected to the storage platform (1), the first extension rod (5) is slidably connected to the first storage rod (4), and the first extension rod (5) is detachably connected to one of the plurality of conduction links (2) far from the sliding storage assembly.

3. The dust reduction device for ore mining according to claim 2, wherein, The sliding storage assembly includes: A second storage rod (6) rotatably connected to the storage platform (1). A clamping member (8) is arranged on the second storage rod (6), and the clamping member (8) is connected to the spray mechanism; A second extension rod (7) slidably connected to the second storage rod (6), and the conduction link (2) is slidably arranged in the second extension rod (7).

4. The dust reduction device for ore mining according to claim 3, wherein, The conduction link (2) is arranged in an arc shape. Rotating shafts (9) are arranged at both ends of the conduction link (2) close to the inner circle, and the rotating shafts (9) can be rotatably connected to the rotating shafts (9) on other conduction links (2). The conduction link (2) is arranged in a hollow shape.

5. The dust reduction device for ore mining according to claim 4, characterized in that, The spray mechanism includes: A water delivery pipe (10) passing through a plurality of the conduction links (2). The water delivery pipe (10) passes through the second storage rod (6) and the second extension rod (7). The water delivery pipe (10) is connected to the clamping member (8), and the water delivery pipe (10) is communicated with the spray nozzles (3) on the plurality of conduction links (2); One end of the water delivery pipe (10) close to the first extension rod (5) is set to be closed, and the conduction link (2) rotatably connected to the first extension rod (5) is fixedly connected to the closed end of the water delivery pipe (10); A clamping groove (11) is formed on the conduction link (2), a C-shaped clamping member (12) is detachably connected to the clamping groove (11), and an air supply pipe (13) is detachably connected to the C-shaped clamping member (12).

6. The dust reduction device for ore mining according to claim 5, characterized in that, A plurality of air outlets are formed on one side of the air supply pipe (13) away from the conduction link (2), and an elastic air curtain (14) is arranged at the air outlet. When the air pressure in the air supply pipe (13) is relatively high, gas can be ejected through the elastic air curtain (14).

7. The dust reduction device for ore mining according to claim 6, characterized in that, The clamping member (8) is arranged on one side of the second receiving rod (6) close to the receiving platform (1), and the water delivery pipe (10) is received in the second receiving rod (6).

8. The dust reduction device for ore mining according to claim 7, characterized in that, The negative pressure dust collection mechanism includes: An inclined arc groove (15) is formed above the receiving platform (1); A sector-shaped air outlet (16) is rotatably connected to the inclined arc groove (15), and the sector-shaped air outlet (16) can rotate on the inclined arc groove (15) towards the direction of the air supply pipe (13); An air extraction port (17) is arranged in the receiving platform (1), the air extraction port (17) is connected to the sector-shaped air outlet (16), an air extraction pipe (18) is connected to the air extraction port (17), and the air extraction pipe (18) penetrates through the receiving platform (1).

9. The dust reduction device for ore mining according to claim 8, characterized in that, A groove (19) is formed above the sector-shaped air outlet (16), and the sliding receiving assembly and the connecting and supporting assembly can be rotated into the groove (19) in the sector-shaped air outlet (16).

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