An ore crushing station spray filtering dust removal device and control method

Abstract

This invention discloses a spray filtration dust removal device and control method for an ore crushing station, relating to the field of air pollution control and dust removal technology. It includes a dust collection box structure located on one side of the crusher's feed inlet. The dust collection box structure includes a box body, a dust cover and a feed hopper on the front side of the box body, and an oscillating spray mechanism, a circulating filtration and dust collection mechanism, and a knocking transmission mechanism inside the box body. The oscillating spray mechanism is used to spray dust onto the crusher's feed inlet area, the circulating filtration and dust collection mechanism is used to extract and filter dust-laden gas, and the knocking transmission mechanism is used to knock and clean the circulating filter cloth while simultaneously driving the main pipeline to oscillate and spray. When the ore enters the crusher for crushing, the spray dust suppression, suction filtration, and knocking dust removal are carried out simultaneously to continuously remove dust generated in the feed area of ​​the crushing station.

Description

Technical Field

[0001] This invention belongs to the field of air pollution control and dust removal technology, specifically relating to a spray filtration dust removal device and control method for ore crushing stations. Background Technology

[0002] During the crushing process, ore typically enters the crushing equipment through the feed inlet to complete the crushing operation. The falling, colliding, and crushing of the ore often generates a large amount of dust, which easily spreads in and around the feed area of ​​the crushing equipment, affecting the working environment and causing atmospheric dust pollution at the crushing station. Therefore, appropriate dust control measures are usually required during the use of ore crushing equipment to reduce the degree of dust escape during crushing operations.

[0003] The existing dust control methods for ore crushing stations mostly involve spraying dust suppression or suction dust removal around the feeding area of ​​the crushing equipment. This aims to control the dust generated in the feeding area within a certain range and remove the dust-laden gas from the working area through dust removal equipment, thereby improving the dust pollution situation during crushing operations.

[0004] However, from a system-level perspective, existing dust removal devices at ore crushing stations still generally suffer from a prominent technical problem in practical applications: under continuous feeding and crushing conditions, dust generation in the feeding area of ​​the crushing equipment is continuous and diffuse. Existing dust removal systems often struggle to simultaneously address continuous spray dust suppression, continuous suction and filtration of dust-laden gas, and continuous cleaning of the filter unit in the feeding area of ​​the ore crushing station. This results in unstable dust control at the crushing station, which in turn affects the overall dust control effect of the ore crushing station. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a spray filtration dust removal device and control method for ore crushing station, so as to solve the problem that the existing ore crushing station is difficult to simultaneously achieve continuous spray dust suppression, continuous suction filtration of dust-laden gas and continuous cleaning of the filter unit.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A spray filtration dust removal device for an ore crushing station includes a crusher and a dust collection box structure fixed to one side of the crusher's feed inlet. The dust collection box structure includes a box body, an oscillating spray mechanism is provided on the lower front side inside the box body, a circulating filtration dust collection mechanism is provided on the upper inside the box body, a knocking transmission mechanism is provided on the side of the box body near the circulating filtration dust collection mechanism, a dust cover is fixed to the front side of the box body and covers the outside of the crusher's feed inlet, and a feed hopper for introducing ore into the crusher is provided on the top of the dust cover. The swing spray mechanism includes a storage cylinder fixed to one side of the box and a main pipe rotatably installed inside the box. The surface of the main pipe is provided with multiple spray pipes for atomizing water spraying to the feed inlet of the crusher. The circulating filter dust collection mechanism includes a dust collection window set above the front surface of the box, a first roller and a second roller set on both sides of the upper surface inside the box, a circulating filter cloth sleeved between the first roller and the second roller, and a dust collection head placed between the two layers of circulating filter cloth and corresponding to the dust collection window. The dust collection head has a suction tube that penetrates the upper surface of the box at the top center. The striking transmission mechanism is connected to the first roller and the main pipe respectively, so that when the first roller rotates, it drives the main pipe to swing, and drives the striking rod on the main pipe to strike and clean the circulating filter cloth that has rotated to the rear.

[0007] Furthermore, an arc-shaped protrusion is provided on the lower front side of the surface of the box, and an arc-shaped track groove that communicates with the interior of the box is evenly opened on the surface of the arc-shaped protrusion. The rotation axis of the main pipe coincides with the center of the arc-shaped protrusion. The end of the main pipe is rotatably installed and communicates with the inside of the storage cylinder. The ends of the multiple nozzles are respectively placed inside the corresponding arc-shaped track grooves.

[0008] Furthermore, multiple nozzle surfaces are fixed with arc-shaped baffles, which are placed inside the arc-shaped protrusions to seal the interior of the multiple arc-shaped track grooves.

[0009] Furthermore, the circulating filter dust collection mechanism also includes a mesh cover fixed inside the dust collection window, the circulating filter cloth located on the front side seals the inside of the dust collection window, and the second roller is connected to the drive motor for transmission.

[0010] Furthermore, the upper surface of the housing is symmetrically provided with sliding grooves, and the upper surface of the vacuum head is symmetrically provided with fixing rods. The two fixing rods are respectively placed inside the two sliding grooves. The top of the fixing rods is fixed with a limit plate by bolts. The limit plate is placed on the top of the housing and its lateral dimension is larger than that of the fixing rod.

[0011] Furthermore, the circulating filter vacuuming mechanism also includes a first spring placed inside the slide groove. The first spring applies a thrust to the fixed rod toward the vacuuming window so that the vacuuming head covers the inside of the vacuuming window and squeezes the circulating filter cloth located between the vacuuming head and the vacuuming window.

[0012] Furthermore, the striking transmission mechanism includes a track rod horizontally fixed inside the housing near the first roller, a toothed rod horizontally slidably mounted on the surface of the track rod, an incomplete gear disposed at the bottom of the first roller and meshing with the toothed rod, and a second spring sleeved on the surface of the track rod and applying a forward thrust to the toothed rod. An L-shaped fixing plate is fixed to the bottom of the toothed rod.

[0013] Furthermore, a lever is fixed to one end of the surface of the main pipe, and the end of the lever is installed with an L-shaped fixed plate through a spherical bearing to control the swing of the main pipe when the first roller rotates.

[0014] Furthermore, a striking rod is fixed to the center of the surface of the main pipe, and a back plate is bolted to the open back of the box. A dust collection box is provided at the bottom of the back plate and is placed inside the lower part of the box to collect the dust that falls after being struck.

[0015] The control method for the spray filtration dust removal device at the ore crushing station according to any one of claims 1-9 is characterized by comprising the following steps: S1. Fix the box to one side of the feed inlet of the crusher, connect the storage cylinder to the water supply device, and connect the suction pipe to the negative pressure suction device. S2. When the crusher is working, start the drive motor of the second roller to drive the second roller and the first roller to rotate, so that the circulating filter cloth can circulate. S3. Using the pushing force of the first spring on the fixed rod, the vacuum head covers the inside of the vacuum window and squeezes the circulating filter cloth located between the vacuum head and the vacuum window. S4. The clean water inside the storage tank is diverted to multiple nozzles through the main pipe and sprayed onto the feed inlet of the crusher through the nozzles. At the same time, dust gas is drawn in through the dust suction window. The dust gas passes through the mesh cover, circulating filter cloth, dust suction head and suction pipe in sequence and is discharged. The dust remains on the surface of the circulating filter cloth. S5. During the rotation of the first roller, when the incomplete gear engages with the rack, it pushes the rack backward and compresses and stores force on the second spring. Through the cooperation of the L-shaped fixing plate and the actuating rod, it drives the main pipe to swing. When the incomplete gear rotates beyond the engagement range with the rack, the elastic force of the second spring causes the rack to move forward back to its original position. Through the cooperation of the L-shaped fixing plate and the actuating rod, the main pipe swings back. At the same time, the striking rod strikes the circulating filter cloth that has rotated to the rear, so that the cleaned dust falls into the dust collection box.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention features a dust collection box structure on one side of the crusher's feed inlet. This dust collection box structure is further equipped with a dust cover covering the outside of the feed inlet, a swing spray mechanism for suppressing dust in the feed inlet area, and a circulating filtration and dust collection mechanism for absorbing and filtering dust-laden gas. When ore enters the crusher's feed inlet through the feed hopper and continuous dust generation occurs, the dust cover first limits the dust diffusion area around the feed inlet. The swing spray mechanism then diverts clean water from the storage tank through the main pipeline to multiple nozzles and continuously sprays it towards the feed inlet area. Simultaneously, the circulating filtration and dust collection mechanism continuously draws in and filters the dust-laden gas within the dust cover area through a dust collection window, circulating filter cloth, dust collection head, and suction pipe. This ensures that dust generated in the crushing station's feed area is suppressed by spraying at its source and simultaneously absorbed and filtered during diffusion. This creates a continuous dust control process around the crusher's feed area, complementing continuous feeding and crushing operations, thus improving the stability of dust control at the crushing station.

[0017] This invention further connects the first roller in the circulating filtration dust collection mechanism to the striking transmission mechanism, and links the striking transmission mechanism with the main pipeline. When the first roller rotates with the movement of the circulating filter cloth, the incomplete gear pushes the rack to move and drives the main pipeline to swing through the L-shaped fixing plate and the actuating rod, causing multiple nozzles to swing back and forth along the arc-shaped track groove to spray the feed inlet area. When the incomplete gear rotates out of the meshing range, the rack returns to its original position under the action of the second spring, the main pipeline swings back in the opposite direction, and the striking rod fixed on the main pipeline simultaneously strikes the circulating filter cloth that has rotated to the rear, causing the dust adhering to the surface of the circulating filter cloth during the filtration process to fall off and fall into the dust collection box. In this way, the spray dust suppression action, the filtration action, and the cleaning action after filtration are coordinated with each other in the same continuous working process, avoiding the problem of insufficient connection of the treatment process when the crushing station continuously generates dust by relying on a single spray dust suppression or a single suction dust removal. This further ensures the continuity of the continuous dust removal treatment process at the ore crushing station. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the crusher installation structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the dust collection box and dust cover of the present invention. Figure 3 This is a three-dimensional structural diagram of the dust collector box of the present invention; Figure 4 This is a schematic cross-sectional view of the dust collector box of the present invention; Figure 5 This is a three-dimensional structural diagram of the oscillating spray mechanism of the present invention; Figure 6 This is a schematic cross-sectional view of the flexible mounting structure of the vacuum head of the present invention; Figure 7This is a schematic diagram of the vacuum head and circulating filter cloth structure of the present invention; Figure 8 This is a three-dimensional structural diagram of the vacuum head of the present invention; Figure 9 This is a three-dimensional structural diagram of the impact transmission structure of the present invention. Figure 10 This is a schematic diagram of the connection structure between the toothed rod and the actuating rod of the present invention.

[0019] The attached diagram lists the components represented by each number as follows: 1. Crusher; 2. Dust collector structure; 21. Box body; 211. Track rod; 22. Arc-shaped protrusion; 23. Arc-shaped track groove; 24. Dust suction window; 25. Slide rail; 26. Back plate; 27. Dust collection box; 28. Dust cover; 29. ​​Feed hopper; 3. Oscillating spray mechanism; 31. Main pipe; 32. Spray nozzle; 33. Arc-shaped baffle; 34. Storage tank; 35. Actuating lever; 36. Striking lever; 4. Circulating filter dust collection mechanism; 41. Mesh cover; 42. First roller; 421. Incomplete gear; 43. Second roller; 44. Circulating filter cloth; 45. Dust collection head; 46. Suction tube; 47. Fixing rod; 48. Limiting plate; 49. First spring; 5. Striking transmission mechanism; 51. Gear rack; 52. L-shaped fixing plate; 53. Second spring. Detailed Implementation

[0020] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention. Example

[0021] See Figures 1-10 A spray filtration dust removal device for an ore crushing station includes a crusher 1 and a dust removal box structure 2 fixed to one side of the feed inlet of the crusher 1. The dust removal box structure 2 includes a box body 21. A swing spray mechanism 3 is provided on the lower front side inside the box body 21. A circulating filtration dust collection mechanism 4 is provided on the upper inside the box body 21. A knocking transmission mechanism 5 is provided on the side of the box body 21 near the circulating filtration dust collection mechanism 4. A dust cover 28 is fixed on the front side of the box body 21 and covers the outside of the feed inlet of the crusher 1. A feed hopper 29 for introducing ore into the crusher 1 is provided on the top of the dust cover 28. Figure 1 The overall installation status of the crusher 1 and the dust collector structure 2 is shown. Figure 2 The installation and assembly relationship of the dust collector structure 2, the dust cover 28, and the feed hopper 29 is shown. Figure 3 and Figure 4The overall arrangement of the various functional mechanisms inside the housing 21 is shown.

[0022] During ore crushing operations, dust is mainly generated in the feed inlet area of ​​crusher 1. Dust spreads outwards with the falling and colliding ore, and also accumulates continuously under continuous feeding conditions. To create a continuous dust control process around the feed inlet area, a dust cover 28 is fixed to the front of the housing 21 and covers the outside of the feed inlet of crusher 1. A feed hopper 29 is positioned on top of the dust cover 28. After being fed through the feed hopper 29, the ore directly enters the feed inlet area of ​​crusher 1. The dust cover 28 defines a confined area around the feed inlet, ensuring that both the oscillating spray mechanism 3 and the circulating filtration and dust collection mechanism 4 operate around the same dust-generating area.

[0023] In use, first fix the housing 21 to one side of the feed inlet of the crusher 1, then connect the storage cylinder 34 to the water supply device, and connect the suction pipe 46 to the negative pressure suction device. Then start the drive motor of the second roller 43, and the second roller 43 drives the first roller 42 to rotate synchronously. The circulating filter cloth 44 sleeved between the first roller 42 and the second roller 43 begins to circulate. At the same time, the suction head 45 is always pressed towards the suction window 24 under the pushing force of the first spring 49. The front circulating filter cloth 44 is clamped between the suction head 45 and the suction window 24, forming a stable suction and filtration area at the suction window 24.

[0024] Next, clean water from the storage cylinder 34 enters the main pipe 31, and multiple nozzles 32 on the surface of the main pipe 31 spray towards the feed inlet area of ​​the crusher 1. When the ore enters the crusher 1 through the feed hopper 29, the oscillating spray mechanism 3 continuously sprays water into the area covered by the dust cover 28, and the circulating filtration and dust collection mechanism 4 continuously draws in dust-laden gas through the dust collection window 24. The dust-laden gas passes through the mesh cover 41, the circulating filter cloth 44, the dust collection head 45, and the suction pipe 46 in sequence before being discharged. The dust is blocked and adheres to the surface of the circulating filter cloth 44. Throughout the entire process, the oscillating spray mechanism 3 is responsible for suppressing dust at the source, the circulating filtration and dust collection mechanism 4 is responsible for suctioning and filtering diffused dust, and the knocking transmission mechanism 5 is responsible for synchronously driving the oscillating spray mechanism 3 to oscillate and knock on the circulating filter cloth 44 during the filtration process. The dust collection box 27 is located inside the lower part of the housing 21 and is used to collect the dust that falls after knocking, thus completing a complete "feeding - spray dust suppression - dust collection and filtration - circulating dust cleaning - dust collection" process. Example

[0025] See Figure 4 , Figure 5 , Figure 9 and Figure 10The oscillating spray mechanism 3 and the striking transmission mechanism 5 are installed in the lower to middle area inside the housing 21. The oscillating spray mechanism 3 includes a storage cylinder 34 fixed to one side of the housing 21 and a main pipe 31 rotatably installed inside the housing 21. Multiple spray nozzles 32 are provided on the surface of the main pipe 31. A toggle rod 35 is fixed to one end of the surface of the main pipe 31, and a striking rod 36 is fixed to the center of the surface of the main pipe 31. An arc-shaped protrusion 22 is provided on the lower front side of the surface of the housing 21. Arc-shaped track grooves 23 that communicate with the interior of the housing 21 are evenly opened on the surface of the arc-shaped protrusion 22. The rotation axis of the main pipe 31 coincides with the center of the arc-shaped protrusion 22. The end of the main pipe 31 is rotatably installed and communicates with the interior of the storage cylinder 34. The ends of the multiple spray nozzles 32 are respectively placed inside the corresponding arc-shaped track grooves 23. Arc-shaped baffles 33 are fixed on the surface of the multiple spray nozzles 32. The arc-shaped baffles 33 are placed inside the arc-shaped protrusions 22 and seal the interior of the arc-shaped track grooves 23. Figure 5 The structural assembly relationship of the main pipe 31, nozzle 32, arc-shaped baffle 33, and storage cylinder 34 is shown. Figure 10 The connection between the lever 35 and the L-shaped fixing plate 52 is shown.

[0026] To address the issue of continuous dust dispersion during ore crushing and the difficulty of covering different dust ranges with a single fixed spray direction, the main pipe 31 is installed inside the housing 21 using a rotating method. The end of the spray pipe 32 is confined to the inside of the arc-shaped track groove 23, which provides a guiding path for the swing of the spray pipe 32. The arc-shaped baffle 33 maintains a sealed fit with the opening area of ​​the arc-shaped track groove 23 during the swing of the spray pipe 32. After the storage cylinder 34 is connected to the inside of the main pipe 31, clean water is diverted along the main pipe 31 into multiple spray pipes 32. During the swing, the multiple spray pipes 32 can always spray and cover the area around the feed inlet of the crusher 1.

[0027] The striking transmission mechanism 5 includes a track rod 211 horizontally fixed inside the housing 21 near the first roller 42, a toothed rod 51 horizontally slidably mounted on the surface of the track rod 211, an incomplete gear 421 disposed at the bottom of the first roller 42 and meshing with the toothed rod 51, and a second spring 53 sleeved on the surface of the track rod 211 and applying a forward thrust to the toothed rod 51. An L-shaped fixing plate 52 is fixed at the bottom of the toothed rod 51, and the end of the actuating rod 35 is mounted to the L-shaped fixing plate 52 via a spherical bearing. When the first roller 42 rotates, the incomplete gear 421 periodically pushes the rack 51 to move backward along the track rod 211. The L-shaped fixing plate 52 moves backward synchronously and drives the actuating rod 35 to swing. The actuating rod 35 further drives the main pipe 31 to rotate around the rotation axis. Multiple nozzles 32 gradually swing upward under the constraint of the arc-shaped track groove 23. When the incomplete gear 421 rotates out of the meshing range, the second spring 53 pushes the rack 51 forward to return to its original position. The L-shaped fixing plate 52 and the actuating rod 35 reset synchronously. The main pipe 31 swings in the opposite direction, and multiple nozzles 32 quickly swing back to their initial direction. Thus, the rotation of the first roller 42 not only drives the circulating filter cloth 44 to circulate, but also synchronously realizes the reciprocating swing of the nozzles 32 through the striking transmission mechanism 5.

[0028] During the swinging motion of the main pipe 31, the striking rod 36, fixed at the center of the surface of the main pipe 31, swings synchronously, striking the circulating filter cloth 44 which has rotated to the rear position. Dust adhering to the surface of the circulating filter cloth 44 is dislodged by the striking action and falls downwards into the dust collection box 27. The back plate 26 is bolted to the open back of the housing 21, forming a collection space together with the housing 21. The dust collection box 27 is located inside the lower part of the housing 21 and is used to collect the dust that falls after the striking action. This structural arrangement allows the spray swinging action and the filter cloth cleaning action to be completed by the same transmission chain, eliminating the need for a separate cleaning action chain during use. Example

[0029] See Figure 4 , Figure 6 , Figure 7 and Figure 8The circulating filter and dust collection mechanism 4 is located in the upper part of the box 21. The circulating filter and dust collection mechanism 4 includes a dust collection window 24 located above the front surface of the box 21, a mesh cover 41 fixed inside the dust collection window 24, a first roller 42 and a second roller 43 located on both sides of the upper surface of the box 21, a circulating filter cloth 44 sleeved between the first roller 42 and the second roller 43, and a dust collection head 45 placed between the two layers of circulating filter cloth 44 and corresponding to the dust collection window 24. A suction tube 46 is provided at the center of the top of the dust collection head 45, penetrating the upper surface of the box 21. The upper surface of the box 21 is symmetrically provided with sliding grooves 25. The upper surface of the dust collection head 45 is symmetrically provided with fixing rods 47. The two fixing rods 47 are respectively placed inside the two sliding grooves 25. The top of the fixing rods 47 is fixed with a limit plate 48 by bolts. The limit plate 48 is placed at the top of the box 21 and its lateral dimension is larger than that of the fixing rods 47. A first spring 49 is provided inside the sliding groove 25. Figure 6 The cross-sectional view showing the flexible mounting relationship of the vacuum head 45 is shown. Figure 7 The interaction between the vacuum head 45 and the circulating filter cloth 44 is shown. Figure 8 The connection state between the vacuum head 45 body and the fixing rod 47 is shown.

[0030] To address the need for continuous dust and gas extraction and a stable, compressed state in the filtration area during continuous ore crushing operations, the suction head 45 is installed in a way that allows it to move along the slide 25. The fixing rod 47 is located inside the slide 25 and engages with the limiting plate 48. The first spring 49 is located inside the slide 25 and applies a pushing force to the fixing rod 47 towards the suction window 24. Therefore, after installation, the suction head 45 always maintains a compression tendency towards the suction window 24. The front circulating filter cloth 44 is stably pressed between the suction head 45 and the suction window 24, forming a continuous filtration channel at the suction window 24. The suction head 45 and the suction pipe 46 form a suction path.

[0031] During operation, the second roller 43 rotates under the action of the drive motor, driving the first roller 42 and the circulating filter cloth 44 to continuously circulate. When dust-laden gas enters the suction window 24 from the area covered by the dust cover 28, the mesh cover 41 first blocks larger particles, and then the dust-laden gas is filtered through the front circulating filter cloth 44. The filtered gas enters the suction head 45 and is discharged through the suction pipe 46. As the circulating filter cloth 44 continues to rotate, the dust-adhered cloth surface gradually moves away from the suction window 24 and transfers to the rear area of ​​the housing 21. The new circulating filter cloth 44 surface continues to rotate to the suction window 24 to participate in filtration, thus forming a continuous circulating filtration process.

[0032] The aforementioned Embodiment 1 has already described the overall installation relationship and complete action chain, and the aforementioned Embodiment 2 has already described the linkage relationship between the oscillating spray mechanism 3 and the striking transmission mechanism 5. This embodiment focuses on describing the installation and coordination method of the circulating filtration and dust collection mechanism 4. The circulating filtration and dust collection mechanism 4, together with the mesh cover 41, circulating filter cloth 44, dust collection head 45, suction pipe 46 and elastic clamping structure, constitutes a continuously working filtration unit. The circulating filter cloth 44 undertakes the filtration task on the front side and is cleaned by the striking rod 36 on the rear side. The entire module, together with the oscillating spray mechanism 3 and the striking transmission mechanism 5, completes continuous dust removal and treatment operations around the feed inlet area of ​​the crusher 1.

[0033] The working principle of this invention is as follows: In use, the dust collection box structure 2 is fixed to one side of the feed inlet of the crusher 1, so that the dust cover 28 on the front side of the box body 21 covers the outside of the feed inlet of the crusher 1. At the same time, the storage cylinder 34 is connected to the water supply device, and the suction pipe 46 is connected to the negative pressure suction device. Then, the ore is introduced into the crusher 1 through the feed hopper 29 on the top of the dust cover 28, so that the ore is within the coverage of the dust cover 28 during the crushing process in the crusher 1, so as to cooperate with the subsequent spray dust suppression and dust suction filtration operations to complete the dust removal treatment.

[0034] When the crusher 1 starts working, the drive motor connected to the second roller 43 is started, causing the second roller 43 to drive the first roller 42 to rotate synchronously, and causing the circulating filter cloth 44 sleeved between the first roller 42 and the second roller 43 to continuously circulate. During this process, the fixing rod 47 above the dust suction head 45 is placed inside the slide groove 25 on the upper surface of the housing 21, and is kept moving towards the dust suction window 24 under the pushing force of the first spring 49, so that the dust suction head 45 continuously covers the inside of the dust suction window 24, and at the same time, the circulating filter cloth 44 located between the dust suction head 45 and the dust suction window 24 is pressed tightly, so that the circulating filter cloth 44 on the front side forms a stable filtration area at the dust suction window 24, and the mesh cover 41 fixed inside the dust suction window 24 is used to initially block larger particles in the intake gas.

[0035] Subsequently, the clean water inside the storage cylinder 34 enters the main pipe 31 and is diverted from the main pipe 31 to the interior of multiple nozzles 32. Since the main pipe 31 is rotatably installed inside the housing 21 and the rotation axis of the main pipe 31 coincides with the center of the arc-shaped protrusion 22, the ends of the multiple nozzles 32 are respectively placed inside the corresponding arc-shaped track grooves 23. Therefore, the multiple nozzles 32 can swing and spray along the extension direction of the arc-shaped track grooves 23. During this process, the arc-shaped baffle 33 set on the surface of the nozzle 32 is located inside the arc-shaped protrusion 22 and seals the interior of the multiple arc-shaped track grooves 23, so that the nozzles 32 can still maintain the matching state with the arc-shaped track grooves 23 during the swinging process, thereby continuously spraying the atomized water flow towards the feed inlet area of ​​the crusher 1 to suppress the dust raised during ore crushing.

[0036] Next, while the dust is suppressed by the spray, the negative pressure suction device forms a suction force at the dust suction window 24 through the suction pipe 46 and the dust suction head 45, so that the dust gas diffused near the feed inlet of the crusher 1 and inside the dust cover 28 enters the housing 21 through the dust suction window 24; the dust gas is first initially blocked by the mesh cover 41, and then filtered by the circulating filter cloth 44 located on the front side. The filtered gas is then discharged through the dust suction head 45 and the suction pipe 46, while the dust is trapped on the surface of the circulating filter cloth 44, thereby realizing the continuous suction and filtration of dust at the feed inlet of the crusher 1.

[0037] During the filtration process described above, when the first roller 42 rotates, the incomplete gear 421 at its bottom rotates accordingly. When the incomplete gear 421 rotates to the position where it engages with the rack 51, the incomplete gear 421 meshes with the rack 51 which is horizontally slidably mounted on the surface of the track rod 211, and pushes the rack 51 to move backward along the track rod 211. At the same time, it compresses and stores the second spring 53 which is sleeved on the surface of the track rod 211. Since the bottom of the rack 51 is fixed with an L-shaped fixing plate 52, and the end of the actuating rod 35 fixed to one end of the surface of the main pipe 31 is connected to the L-shaped fixing plate 52 through a spherical bearing, when the rack 51 moves backward, it can drive the main pipe 31 to swing through the cooperation of the L-shaped fixing plate 52 and the actuating rod 35, so that the multiple nozzles 32 gradually swing to one side along the arc-shaped track groove 23, thereby expanding the spray coverage area.

[0038] When the incomplete gear 421 continues to rotate and exceeds the engagement range with the rack 51, the rack 51 loses the continuous push from the incomplete gear 421. At this time, the elastic force of the second spring 53 causes the rack 51 to return forward along the track rod 211. The L-shaped fixing plate 52 returns to its original position synchronously with the rack 51 and drives the main pipe 31 to swing in the opposite direction through the toggle rod 35, so that the multiple nozzles 32 quickly swing back to the initial direction. At the same time, the striking rod 36 fixed at the center of the surface of the main pipe 31 swings synchronously during the swing of the main pipe 31 and strikes the circulating filter cloth 44 that has rotated to the rear position, so that the dust attached to the surface of the circulating filter cloth 44 falls off under the action of vibration.

[0039] Subsequently, the dust removed by the knocking falls downwards and is collected in the dust collection box 27 located at the bottom of the housing 21. The back plate 26 installed at the open back of the housing 21 is used to seal the back of the housing 21, allowing the falling dust to fall inside the housing 21 and be collected by the dust collection box 27. Thus, the device completes a typical operation process of "ore introduction—spray dust suppression—negative pressure dust collection—circulating filtration—linked swing spray—knocking dust removal—dust collection," and this process is repeated cyclically during the continuous operation of the crusher 1.

[0040] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A spray filtration dust removal device for an ore crushing station, characterized in that, The system includes a crusher (1) and a dust collection box structure (2) fixed on one side of the feed inlet of the crusher (1). The dust collection box structure (2) includes a box body (21). A swing spray mechanism (3) is provided on the lower front side inside the box body (21). A circulating filter dust collection mechanism (4) is provided on the upper inside the box body (21). A knocking transmission mechanism (5) is provided on the side of the box body (21) near the circulating filter dust collection mechanism (4). A dust cover (28) is fixed on the front side of the box body (21) and is placed on the outside of the feed inlet of the crusher (1). A feed hopper (29) for introducing ore into the crusher (1) is provided on the top of the dust cover (28). The swing spray mechanism (3) includes a storage cylinder (34) fixed on one side of the box (21) and a main pipe (31) rotatably installed inside the box (21). The surface of the main pipe (31) is provided with multiple spray pipes (32) for atomizing water spraying to the feed inlet of the crusher (1). The circulating filter dust collection mechanism (4) includes a dust collection window (24) disposed above the front surface of the housing (21), a first roller (42) and a second roller (43) disposed on both sides of the upper surface inside the housing (21), a circulating filter cloth (44) sleeved between the first roller (42) and the second roller (43), and a dust collection head (45) placed between the two layers of circulating filter cloth (44) and corresponding to the dust collection window (24). The dust collection head (45) has a suction tube (46) that penetrates the upper surface of the housing (21) at the top center. The striking transmission mechanism (5) is connected to the first roller (42) and the main pipe (31) respectively, so as to drive the main pipe (31) to swing when the first roller (42) rotates, and drive the striking rod (36) on the main pipe (31) to strike and clean the circulating filter cloth (44) that has rotated to the rear side.

2. The spray filtration dust removal device for an ore crushing station according to claim 1, characterized in that, An arc-shaped protrusion (22) is provided on the lower front side of the surface of the box (21), and an arc-shaped track groove (23) that communicates with the interior of the box (21) is evenly opened on the surface of the arc-shaped protrusion (22). The rotation axis of the main pipe (31) coincides with the center of the arc protrusion (22). The end of the main pipe (31) is rotatably installed and communicates with the inside of the storage cylinder (34). The ends of the multiple nozzles (32) are respectively placed inside the corresponding arc track groove (23).

3. The spray filtration and dust removal device for an ore crushing station according to claim 2, characterized in that, A plurality of nozzles (32) are fixed with arc-shaped baffles (33), which are placed inside the arc-shaped protrusions (22) to seal the interior of the plurality of arc-shaped track grooves (23).

4. The spray filtration dust removal device for an ore crushing station according to claim 1, characterized in that, The circulating filter dust collection mechanism (4) also includes a mesh cover (41) fixed inside the dust collection window (24), the circulating filter cloth (44) located on the front side seals the inside of the dust collection window (24), and the second roller (43) is connected to the drive motor.

5. The spray filtration and dust removal device for an ore crushing station according to claim 1, characterized in that, The upper surface of the box (21) is symmetrically provided with sliding grooves (25), and the upper surface of the dust suction head (45) is symmetrically provided with fixing rods (47). The two fixing rods (47) are respectively placed inside the two sliding grooves (25). The top of the fixing rods (47) is fixed with a limiting plate (48) by bolts. The limiting plate (48) is placed on the top of the box (21) and its lateral dimension is larger than that of the fixing rods (47).

6. A spray filtration and dust removal device for an ore crushing station according to claim 5, characterized in that, The circulating filter vacuuming mechanism (4) also includes a first spring (49) placed inside the slide (25). The first spring (49) applies a thrust to the fixed rod (47) toward the vacuuming window (24) so ​​that the vacuuming head (45) covers the inside of the vacuuming window (24) and squeezes the circulating filter cloth (44) located between the vacuuming head (45) and the vacuuming window (24).

7. The spray filtration and dust removal device for an ore crushing station according to claim 1, characterized in that, The striking transmission mechanism (5) includes a track rod (211) horizontally fixed inside the housing (21) near the first roller (42), a toothed rod (51) horizontally slidably mounted on the surface of the track rod (211), an incomplete gear (421) set at the bottom of the first roller (42) and meshing with the toothed rod (51), and a second spring (53) sleeved on the surface of the track rod (211) and applying a forward thrust to the toothed rod (51). An L-shaped fixing plate (52) is fixed at the bottom of the toothed rod (51).

8. A spray filtration and dust removal device for an ore crushing station according to claim 7, characterized in that, A lever (35) is fixed to one end of the surface of the main pipe (31). The end of the lever (35) is installed between the L-shaped fixing plate (52) and the lever (35) through a joint bearing to control the swing of the main pipe (31) when the first roller (42) rotates.

9. A spray filtration and dust removal device for an ore crushing station according to claim 8, characterized in that, A striking rod (36) is fixed at the center of the surface of the main pipe (31). A back plate (26) is bolted to the open back of the box (21). A dust collection box (27) is provided at the bottom of the back plate (26). The dust collection box (27) is placed inside the lower part of the box (21) to collect the dust that falls off after being struck.

10. A control method for the spray filtration dust removal device at the ore crushing station according to any one of claims 1-9, characterized in that, Includes the following steps: S1. Fix the box (21) on one side of the feed inlet of the crusher (1), connect the storage cylinder (34) to the water supply device, and connect the suction pipe (46) to the negative pressure suction device to form a basic structure for dust removal and treatment in the feed area of ​​the crusher (1). S2. When the crusher (1) is working, the drive motor of the second roller (43) is started to drive the second roller (43) and the first roller (42) to rotate, so that the circulating filter cloth (44) moves in a cycle, thereby forming a continuous filtration working state. S3. Using the pushing force of the first spring (49) on the fixed rod (47), the vacuum head (45) covers the inside of the vacuum window (24) and squeezes the circulating filter cloth (44) located between the vacuum head (45) and the vacuum window (24) to form a stable suction and filtration area. S4. The clean water inside the storage cylinder (34) is diverted to multiple nozzles (32) through the main pipe (31) and sprayed at the feed inlet of the crusher (1) through the nozzles (32) to suppress the dust. At the same time, dust gas is sucked in through the dust suction window (24). The dust gas passes through the mesh cover (41), the circulating filter cloth (44), the dust suction head (45) and the suction pipe (46) in sequence and is discharged. The dust remains on the surface of the circulating filter cloth (44) to achieve continuous suction and filtration of dust-containing gas. S5. During the rotation of the first roller (42), when the incomplete gear (421) engages with the rack (51), it pushes the rack (51) to move backward and squeezes and stores force on the second spring (53). Through the cooperation of the L-shaped fixing plate (52) and the actuating rod (35), the main pipe (31) swings. When the rotation of the incomplete gear (421) exceeds the engagement range with the rack (51), the elastic force of the second spring (53) is used to move the rack (51) forward back to its original position. Through the cooperation of the L-shaped fixing plate (52) and the actuating rod (35), the main pipe (31) swings back. At the same time, the striking rod (36) strikes the circulating filter cloth (44) that has rotated to the rear side, so that the cleaned dust falls into the dust collection box (27), thereby realizing the continuous cooperation of spray dust suppression, filtration dust removal and filter cloth cleaning.

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