A dust suppression device for ore mining

Abstract

This invention relates to the field of dust suppression devices, and proposes a dust suppression device for ore mining, comprising a receiving platform, a supporting and opening mechanism, a spraying mechanism, and a negative pressure dust collection mechanism. The supporting and opening mechanism supports the spraying mechanism, which contacts the top of the belt conveyor when spraying. Multiple transmission chain links are rotatably connected end to end, and the transmission chain links are detachably connected to the supporting and opening mechanism. The negative pressure dust collection mechanism is used to extract and collect dust-laden gas. When the transmission chain links contact the top of the belt conveyor, nozzles are fixedly installed on the transmission chain links, with the nozzles located on the side of the transmission chain links closest to the negative pressure dust collection mechanism. This technical solution addresses the problem in the prior art where movable spraying devices in belt conveyor corridors are difficult to make close contact with irregular parts of the mine during use, which may result in insufficient dust suppression.

Description

Technical Field

[0001] This invention relates to industrial and mining engineering construction, and more specifically to the field of dust suppression device technology, specifically to a dust suppression device for ore mining. Background Technology

[0002] During the mining process, a large amount of dust and slag is inevitably generated. However, dust is extremely harmful. When the concentration of dust in the air reaches a certain level, it may cause a dust explosion when it comes into contact with a spark. The substances in the dust can also cause great damage to the health of workers. Therefore, dust suppression is very important during the mining process.

[0003] In open-pit mines, dust suppression is often achieved through large-scale spraying. In mine conveyor belt corridors, water curtains are typically used to block and suppress airborne dust. Spray nozzles are installed at the top of the conveyor belt corridor to create a water curtain, which suppresses the mineral dust moving with the airflow in the corridor. Traditional spraying devices are fixedly installed on the conveyor belt corridor. As the drilling equipment advances, the distance between the spraying device and the drilling equipment gradually increases, and the dust suppression effect gradually decreases. Most spraying devices are immobile, and even those that are movable have a fixed size for the spray section. However, the size and shape of the channel at the drilling location are not regular, making it difficult for the spray section to make close contact with the channel, resulting in a significant amount of mineral dust flowing out and failing to effectively suppress the dust. Summary of the Invention

[0004] This invention proposes a dust suppression device for ore mining, which solves the problem that existing mobile spray devices in belt conveyor corridors are difficult to make close contact with irregular parts of the mine during use, which may result in insufficient dust suppression.

[0005] The technical solution of the present invention is as follows:

[0006] A dust suppression device for ore mining includes a receiving platform, a support and opening mechanism, a spraying mechanism, and a negative pressure dust collection mechanism. The receiving platform is placed on the floor of a conveyor belt corridor. The support and opening mechanism is rotatably connected to the receiving platform, and is rotatably connected to both ends of the receiving platform. The spraying mechanism is detachably connected to the support and opening mechanism, which supports the spraying mechanism. The spraying mechanism is used to spray dust suppression onto the conveyor belt corridor, and contacts the top of the conveyor belt corridor when spraying. The spraying mechanism includes multiple transmission chain links, which are rotatably connected end to end. The transmission chain links are detachably connected to the support opening mechanism. A negative pressure dust collection mechanism is disposed on the storage platform. The support opening mechanism is detachably connected to the negative pressure dust collection mechanism. The negative pressure dust collection mechanism is used to extract and collect dust-laden gas. A nozzle is fixedly disposed on the transmission chain link. When the transmission chain link contacts the top of the belt conveyor, the nozzle is disposed on the side of the transmission chain link closer to the negative pressure dust collection mechanism.

[0007] The supporting opening 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 and is slidably connected to the spraying mechanism. The connecting support component is rotatably connected to the end of the storage platform away from the sliding storage component and is detachably connected to the spraying mechanism. The sliding storage component and the connecting support component are arranged opposite to each other. The connecting support component includes a storage rod and an extension rod. The storage rod is rotatably connected to the storage platform, and the extension rod is slidably connected to the storage rod. The extension rod is detachably connected to one of the plurality of transmission links away from the sliding storage component.

[0008] The sliding storage assembly includes a second storage rod and a second extension rod. The second storage rod is rotatably connected to the storage platform. A clamping element is provided on the second storage rod, and the clamping element is connected to the spraying mechanism. The second extension rod is slidably connected to the second storage rod, and the transmission chain link is slidably disposed in the second extension rod.

[0009] The conductive link is designed to be arc-shaped, and the two ends of the conductive link near the inner ring are provided with pivots, which can be rotatably connected to the pivots on other conductive links. The conductive link is designed to be hollow.

[0010] The spraying mechanism includes a water supply pipe, a locking groove, and an air supply pipe. The water supply pipe passes through multiple transmission chain links, and also passes through the second receiving rod and the second extension rod. The water supply pipe is connected to the locking member and communicates with the nozzles on the multiple transmission chain links. One end of the water supply pipe near the first extension rod is closed. The transmission chain link rotatably connected to the first extension rod is fixedly connected to the closed end of the water supply pipe. The locking groove is formed on the transmission chain link, and a C-shaped locking member is detachably connected to the locking groove. An air supply pipe is detachably connected to the C-shaped locking member.

[0011] Multiple air outlets are provided on the side of the air supply pipe away from the transmission chain link. Each air outlet is equipped with an elastic air curtain. When the air pressure in the air supply pipe is high, the gas can be ejected through the elastic air curtain.

[0012] The clamping component is located on the side of the storage rod two near the storage platform, and the water pipe is stored in the storage rod two.

[0013] The negative pressure dust collection mechanism includes an inclined arc groove, a fan-shaped air outlet, and an exhaust port. The inclined arc groove is located above the storage platform. The fan-shaped air outlet is rotatably connected to the inclined arc groove and can rotate in the direction of the air supply pipe on the inclined arc groove. The exhaust port is located in the storage platform and is connected to the fan-shaped air outlet. An exhaust pipe is connected to the exhaust port and passes through the storage platform.

[0014] A groove is provided above the fan-shaped air outlet, and the sliding storage component and the connecting support component can rotate into the groove in the fan-shaped air outlet.

[0015] The working principle and beneficial effects of this invention are as follows:

[0016] 1. In this invention, by setting up conductive links and water supply pipes, multiple conductive links are connected to form a chain that can only bend and rotate in one direction. At the same time, the water supply pipe pushes upwards and bends to fit as close as possible to the top of the channel when it is full of water. This allows it to handle channels of various sizes and shapes and spray water. It is also easy to roll up and store. Compared with the prior art, it is more adaptable and easier to move.

[0017] 2. In this invention, the support opening mechanism facilitates storage and can also be used in wide passages. The spray mechanism can adapt to belt conveyor corridors of various sizes, reducing the outflow of mineral dust through the gap between the spray device and the side wall. The negative pressure dust collection mechanism facilitates the storage of the support opening mechanism and allows adjustment of the angle of the fan-shaped air vents according to the flow direction of the air containing mineral dust during dust suppression, thereby efficiently sucking up mineral dust. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall structure from another perspective in this invention;

[0021] Figure 3 This is a partial structural diagram of the interaction between the transmission chain and the air delivery pipe in this invention;

[0022] Figure 4 This is a partial structural diagram of the sliding storage component in this invention;

[0023] Figure 5 This is a partial internal structure diagram of the extension rod 2 in this invention;

[0024] Figure 6 This is a schematic diagram of the internal cross-sectional structure of the storage platform in this invention;

[0025] Figure 7 This is a schematic diagram of the internal cross-sectional structure of the air extraction port in this invention.

[0026] In the diagram: 1. Storage platform; 2. Conductive chain link; 3. Nozzle; 4. Storage rod one; 5. Extension rod one; 6. Storage rod two; 7. Extension rod two; 8. Clamping device; 9. Rotary shaft; 10. Water supply pipe; 11. Clip groove; 12. C-type clamp; 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. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figures 1-7As shown, the dust suppression device of this invention belongs to industrial and mining engineering construction. This embodiment proposes a dust suppression device for ore mining, including a receiving platform 1, a support opening mechanism, a spraying mechanism, and a negative pressure dust collection mechanism. The receiving platform 1 is placed on the floor of the conveyor belt corridor. The support opening mechanism is rotatably connected to the receiving platform 1, and the support opening mechanism is rotatably connected to both ends of the receiving platform 1. The spraying mechanism is detachably connected to the support opening mechanism. The support opening mechanism is used to support the spraying mechanism, which is used to spray dust in the conveyor belt corridor. When spraying, the spraying mechanism contacts the top of the conveyor belt corridor. The spraying mechanism includes multiple transmission chain links 2, which are rotatably connected end to end. The transmission chain links 2 are detachably connected to the support opening mechanism. The negative pressure dust collection mechanism is set on the receiving 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 extract and collect dust-laden gas. A nozzle 3 is fixedly installed on the transmission chain link 2. When the transmission link 2 contacts the top of the belt conveyor, the nozzle 3 is located on the side of the transmission link 2 near the negative pressure dust collection mechanism. During dust suppression, the dust suppression device can be moved in the drilling channel to the vicinity of the drilling position. The air supply pipe 13 is connected to the fan behind, and the air supply pipe 13 supplies air to the drilling position. The water supply pipe 10 is connected to the water pump, and water is sprayed through the nozzle 3. The water mist comes into contact with the mineral dust in the air to suppress dust. The air extraction pipe 18 is connected to the external air pump to draw in the gas mixed with water mist and mineral dust, and separate the mineral dust behind it. Compared with the traditional spray device, this application can be moved flexibly. The traditional spray device needs to be built to the standard size in the belt conveyor before installation. In this application, multiple transmission links 2 can be connected to form a chain-like structure. After water is supplied to the water supply pipe 10, the water pressure pushes the chain to contact the top of the channel, thereby creating a water curtain for dust suppression in the drilling well that has not been built to the standard size.

[0029] like Figures 1-5As shown, the supporting opening 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 1 and is slidably connected to the spraying mechanism. The connecting support component is rotatably connected to the end of the storage platform 1 away from the sliding storage component and is detachably connected to the spraying mechanism. The sliding storage component and the connecting support component are arranged opposite to each other. The connecting support component includes a storage rod 4 and an extension rod 5. The storage rod 4 is rotatably connected to the storage platform 1, and the extension rod 5 is slidably connected to the storage rod 4. The extension rod 5 is detachably connected to one of the multiple transmission links 2 away from the sliding storage component. The sliding storage component includes... The storage rod 2 (6) and extension rod 2 (7) are rotatably connected to the storage platform 1. A clamping element 8 is installed on the storage rod 2 (6), which is connected to the spraying mechanism. The extension rod 2 (7) is slidably connected to the storage rod 2 (6). The transmission chain link 2 is slidably disposed within the extension rod 2 (7). The clamping element 8 is disposed on the side of the storage rod 2 (6) near the storage platform 1. The water pipe 10 is stored within the storage rod 2 (6). The storage rods 1 (4) and 2 (6) can rotate at large angles on the storage platform 1. When the diameter of the channel is large, the storage rods 1 (4) and 2 (6) can rotate and open to both sides of the storage platform 1. Simultaneously, through the sliding extension of the extension rods 1 (5) and 2 (7), the water pipe can be extended... The spray mechanism's coverage area is limited by multiple slots on extension rod 5 and extension rod 7, which restrict their sliding extension. When retracting rod 4 and retracting rod 6 rotate and open, water can flow into the water pipe 10. Due to the unidirectional rotation of the chain formed by the transmission links 2, the water pressure can push the water pipe 10 towards the top of the channel until it contacts the top. At the same time, the rotating shaft 9 on the end of the transmission link 2 is rotatably connected to extension rod 5, thus completing an arch-like structure for dust suppression. Furthermore, due to the detachable connection between extension rod 5 and transmission link 2, when there are pipes or equipment in the drilling channel, the spray equipment can be placed around the pipes or equipment before... The connection does not affect the installation of the dust suppression device. Compared with some existing dust suppression devices that are designed in an arch shape and cannot be used when there are long pipes in the pipeline, it has greater convenience. When the sliding storage component and the connecting support component are stored, after the extension rod 1 5 and extension rod 2 7 are slid into the storage rod 1 4 and storage rod 2 6 respectively, they can be rotated and stored in the groove 19. The chain composed of the transmission chain link 2 can be rotated and rolled up for storage. Only a part of the transmission chain link can be stored in the extension rod 2 7. When the channel is large, the transmission chain link can slide out of the extension rod 2 7. When the water pipe 10 and the transmission chain link are stored in the extension rod 2 7, the water pipe 10 and the transmission chain link can be partially slid into the extension rod 2 7 for storage.

[0030] like Figures 3-5As shown, the conductive link 2 is set in an arc shape, and the two ends of the conductive link 2 near the inner ring are provided with rotating shafts 9. The rotating shafts 9 can be rotatably connected to the rotating shafts 9 on other conductive links 2. The conductive link 2 is set in a hollow shape, and the water supply pipe 10 passes through multiple conductive links 2. At the same time, the conductive links 2 also protect the water supply pipe 10.

[0031] like Figures 3-5 As shown, the spraying mechanism includes a water supply pipe 10, a snap-fit ​​groove 11, and an air supply pipe 13. The water supply pipe 10 passes through multiple transmission chain links 2, and also passes through a receiving rod 6 and an extension rod 7. The water supply pipe 10 is connected to a clamping member 8, and the water supply pipe 10 is connected to the nozzles 3 on the multiple transmission chain links 2. The end of the water supply pipe 10 near the extension rod 5 is closed, and the transmission chain link 2, which is rotatably connected to the extension rod 5, is closed at the end of the water supply pipe 10. A fixed connection is established, with a snap-fit ​​groove 11 on the transmission chain link 2. A C-shaped clip 12 is detachably connected to the snap-fit ​​groove 11, and an air supply pipe 13 is detachably connected to the C-shaped clip 12. Multiple air outlets are provided on the side of the air supply pipe 13 away from the transmission chain link 2, and elastic air curtains 14 are installed on the air outlets. When the air pressure in the air supply pipe 13 is high, gas can be ejected through the elastic air curtains 14. After the transmission chain link contacts the top of the pipe, the C-shaped clip 12 can be... 2. Connect to the locking groove 11 on the transmission chain link that leaves the extension rod 2 7, so that the air supply pipe 13 fits into the transmission chain link. When the air pressure of the air pump is relatively high, the elastic air curtain 14 opens and the gas is sprayed out. The gas is blown towards the drilling position, which drives the gas flow. On the one hand, it can drive the flow of mine dust. The mine dust can be more effectively reduced when it is close to the water curtain. On the other hand, it can also send outside air into the mine, increase the oxygen content in the air, reduce the gas content, and make it more conducive to safety during the drilling process. When the water pressure in the water supply pipe 10 is high, the water supply pipe 10 fills up and the volume increases, which drives the transmission chain link to move. Then, as the water pressure increases, water is sprayed out through the nozzle 3 to form water mist. The receiving rod 2 6 and the extension rod 2 7 are also provided with grooves, so that the nozzle 3 on the transmission chain link 2 in the extension rod 2 7 can also spray water mist outward. The water mist sprayed from multiple nozzles 3 forms a water curtain to intercept the mine dust in the air.

[0032] like Figures 6-7As shown, the negative pressure dust collection mechanism includes an inclined arc groove 15, a fan-shaped air outlet 16, and an exhaust port 17. The inclined arc groove 15 is located above the storage platform 1. The fan-shaped air outlet 16 is rotatably connected to the inclined arc groove 15 and can rotate on the inclined arc groove 15 towards the air supply pipe 13. The exhaust port 17 is located in the storage platform 1 and is connected to the fan-shaped air outlet 16. An exhaust pipe 18 is connected to the exhaust port 17 and passes through the storage platform 1. A groove 19 is provided above the fan-shaped air outlet 16. The sliding storage assembly and the connecting support assembly can rotate into the groove 19 in the fan-shaped air outlet 16. 5 consists of two arc-shaped plates of different lengths. The fan-shaped air vent 16 can rotate concentrically between the two arc-shaped plates. The fan-shaped air vent 16 can rotate and tilt towards the shorter arc-shaped plate, so that the fan-shaped air vent 16 faces the side where the air supply pipe 13 is set. Air is blown into the drilling area through the elastic air curtain 14 and drawn in through the fan-shaped air vent 16, so that the gas flow is circulated. The air extraction port 17 can rotate with the fan-shaped air vent 16. The air extraction pipe 18 is a flexible hose. When rotating and storing the storage rod 1 4 and storage rod 2 6, the fan-shaped air vent 16 is rotated to a horizontal position. At this time, the storage rod 1 4 and storage rod 2 6 are rotated into the groove 19 for storage.

[0033] In this embodiment, the storage platform 1 is placed in the location where dust suppression is required. The storage rod 4 and storage rod 6 are rotated to open, and the extension rods 5 and 7 are extended. The shaft 9 of the transmission link 2 is connected to the extension rod 5, and water is pressurized into the water pipe 10. The water pipe 10 is filled with water, and the water pipe 10 coiled in the storage rod 6 is filled with water. The clamping member 8 fixes the water pipe 10, causing the water pipe 10 in the storage rod 6 to push the transmission link 2 in the extension rod 7 towards... The external movement, at the same time the water supply pipe 10 in the transmission link 2 drives the chain composed of transmission link 2 to bend inward, and the whole movement upward until it contacts the top of the drilling channel. With the movement of transmission link 2, the C-type clamp 12 is connected with the clamping groove 11, and the fan-shaped air outlet 16 is rotated to face the drilling position. At this time, the air pump pressurizes, the air pushes the elastic air curtain 14 to open and the gas is sprayed out. The water pump pressurizes, and the water is sprayed out through the nozzle 3 to form a water curtain. The suction pump starts to suck in the gas mixed with mineral dust and water mist to achieve dust suppression.

[0034] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dust suppression device for ore mining, characterized in that, include: A storage platform (1) is placed on the floor of the belt conveyor 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 spraying mechanism is detachably connected to the support opening mechanism. The support opening mechanism is used to support the spraying mechanism. The spraying mechanism is used to spray dust in the belt conveyor. When spraying, the spraying mechanism contacts the top of the belt conveyor. The spraying mechanism includes a transmission chain link (2). Multiple transmission chain links (2) are provided. Multiple transmission chain links (2) are rotatably connected end to end. The transmission chain link (2) is detachably connected to the support opening mechanism. A negative pressure dust collection mechanism is installed on the storage platform (1). The support opening mechanism is detachably connected to the negative pressure dust collection mechanism. The negative pressure dust collection mechanism is used to extract and collect dust-laden gas. A nozzle (3) is fixedly provided on the transmission chain link (2). When the transmission chain link (2) contacts the top of the belt conveyor, the nozzle (3) is located on the side of the transmission chain link (2) close to the negative pressure dust collection mechanism. The supporting opening mechanism includes: A sliding storage component is rotatably connected to one end of the storage platform (1), and the sliding storage component is slidably connected to the spraying mechanism; A connecting support assembly is rotatably connected to one end of the storage platform (1) away from the sliding storage assembly, and the connecting support assembly is detachably connected to the spraying mechanism; The sliding storage component and the connecting support component are arranged opposite to each other; The connecting support assembly includes a storage rod (4) and an extension rod (5). The storage rod (4) is rotatably connected to the storage platform (1). The extension rod (5) is slidably connected to the storage rod (4). The extension rod (5) is detachably connected to one of the plurality of the conductive links (2) that is furthest from the sliding storage assembly. The sliding storage component includes: Storage rod two (6) is rotatably connected to the storage platform (1), and a clamping part (8) is provided on the storage rod two (6), which is connected to the spraying mechanism; Extension rod 2 (7) is slidably connected to storage rod 2 (6), and the transmission link (2) is slidably disposed in extension rod 2 (7); The spraying mechanism includes: Water supply pipe (10) passes through multiple transmission links (2), water supply pipe (10) passes through storage rod two (6) and extension rod two (7), water supply pipe (10) is connected to clamping member (8), and water supply pipe (10) is connected to nozzle (3) on multiple transmission links (2); The end of the water pipe (10) near the extension rod (5) is set in a closed state, and the transmission link (2) rotatably connected to the extension rod (5) is fixedly connected to the closed end of the water pipe (10). A snap-fit ​​groove (11) is provided on the transmission chain link (2), and a C-type clip (12) is detachably connected to the snap-fit ​​groove (11), and an air supply pipe (13) is detachably connected to the C-type clip (12). The rotational connection of multiple transmission links (2) forms a chain that can only bend and rotate in one direction, while being pushed upward by the thrust of the water pipe (10) when it is full of water, bending and fitting against the top of the channel.

2. The dust suppression device for ore mining according to claim 1, characterized in that, The conductive link (2) is set in an arc shape. The two ends of the conductive link (2) near the inner ring are provided with rotating shafts (9). The rotating shafts (9) can be rotatably connected to the rotating shafts (9) on other conductive links (2). The conductive link (2) is set in a hollow shape.

3. A dust suppression device for ore mining according to claim 2, characterized in that, Multiple air outlets are provided on the side of the air supply pipe (13) away from the transmission chain link (2), and an elastic air curtain (14) is provided on the air outlet. When the air pressure in the air supply pipe (13) is large, the gas can be ejected through the elastic air curtain (14).

4. A dust suppression device for ore mining according to claim 3, characterized in that, The clamping member (8) is located on the side of the storage rod (6) near the storage platform (1), and the water pipe (10) is stored in the storage rod (6).

5. A dust suppression device for ore mining according to claim 4, characterized in that, The negative pressure dust collection mechanism includes: An inclined arc groove (15) is provided above the storage platform (1); A fan-shaped air outlet (16) is rotatably connected to the inclined arc groove (15), and the fan-shaped air outlet (16) can rotate on the inclined arc groove (15) toward the air supply pipe (13); An air extraction port (17) is provided in the storage platform (1). The air extraction port (17) is connected to the fan-shaped air vent (16). An air extraction pipe (18) is connected to the air extraction port (17). The air extraction pipe (18) passes through the storage platform (1).

6. A dust suppression device for ore mining according to claim 5, characterized in that, A groove (19) is provided above the fan-shaped air vent (16), and the sliding storage component and the connecting support component can rotate into the groove (19) in the fan-shaped air vent (16).

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