Purification and dust collection device for solid waste pollution in flue gas of fuming furnace for zinc smelting

Abstract

The invention discloses a purification and dust collection device for solid waste pollution in flue gas of a zinc smelting fuming furnace, relates to the technical field of purification and dust collection devices, solves the technical problem of filtration, and comprises a water collection tank, a spray tower is fixedly mounted at the top of the water collection tank, and a smoke conveying pipe is mounted at the position, close to the water collection tank, of the spray tower in a communicating manner. A collecting assembly is arranged on the spray tower; the collecting assembly comprises an exhaust pipe fixedly installed at the position, away from the smoke conveying pipe, of the top of the spraying tower, a collecting pool is fixedly installed on the side, away from the smoke conveying pipe, of the collecting pool, a supporting column and an installing plate are fixedly installed on the side, close to the exhaust pipe, of the collecting pool, and a rotating shaft is rotationally installed at the other end of the supporting column; the flue gas purification device is convenient for multi-stage filtration of the purified flue gas, is convenient for timely replacement and cleaning of the filter screen and collection of the filter bag, and is beneficial to improvement of the filtering capacity and replacement and cleaning capacity of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of purification and dust collection devices, and in particular to a purification and dust collection device for solid waste pollution in the flue gas of a zinc smelting fuming furnace. Background Art

[0002] Zinc smelting is the process of extracting metallic zinc from zinc-containing minerals. A fuming furnace is a device that blows a mixture of air and pulverized coal into liquid slag to volatilize certain valuable metals in the slag in the form of metals, oxides, or sulfides. Fuming furnaces are often used in the zinc smelting process, and the solid waste in the flue gas from the fuming furnace needs to be purified and removed by a dust collection device.

[0003] However, the existing fume furnace flue gas solid waste purification and dust collection device generally uses filter bags for filtering. However, since the flue gas contains oil stains, the oil stains can easily clog the filter bags, making it inconvenient to perform multi-stage protective filtration on the filter bags and to dump and collect the impurities in the filter bags, affecting the filtering capacity of the device and the dumping and collection capacity of the device. Therefore, based on the technical defects, a solid waste pollution purification and dust collection device in the flue gas of a zinc smelting fume furnace is proposed, which can solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a dust collecting device for purifying solid waste pollution in the flue gas of a zinc smelting fuming furnace, and to solve the following technical problems: However, since there are oil stains in the flue gas, the oil stains can easily clog the filter bags, making it inconvenient to perform multi-stage protective filtration on the filter bags and to collect the impurities in the filter bags, thus affecting the filtering capacity of the device and the dumping and collection capacity of the device.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A dust collecting device for purifying solid waste pollution in the flue gas of a zinc smelting fuming furnace, comprising a water collecting pool, a spray tower fixedly installed on the top of the water collecting pool, a smoke delivery pipe connected to the spray tower and installed near the water collecting pool, and a collection component provided on the spray tower; The collecting assembly includes an exhaust pipe fixedly mounted on the top of the spray tower away from the smoke delivery pipe. A collecting pool is fixedly mounted on the side of the water collecting pool away from the smoke delivery pipe. A support column and a mounting plate are fixedly mounted on the side of the collecting pool close to the exhaust pipe. A rotating shaft is rotatably mounted on the other end of the support column. Three filters are fixedly mounted on the end of the rotating shaft close to the support column. Three mounting frames with collecting filter bags are fixedly mounted on the end of the rotating shaft close to the mounting plate. A first motor is fixedly mounted on the side of the support column close to the spray tower.

[0006] As a further solution of the present invention: the exhaust pipe is provided with a mounting groove at the position of the filter screen, the support column is fixedly installed on the exhaust pipe at one end away from the collection tank, and a cleaning brush is fixedly installed at the position of the support column close to the end of the filter screen.

[0007] As a further solution of the present invention: the filter is slidably installed in the cleaning brush, the rotating shaft rotates on the cleaning brush, the output end of the first motor slides through the support column and is fixedly installed on the rotating shaft, and a fixed plate is fixedly installed on the exhaust pipe near the mounting frame, and the rotating shaft slides through the fixed plate.

[0008] As a further solution of the present invention: a limit block is fixedly installed on the top of the support column away from one end of the spray tower, the collecting filter bag is fixedly installed on the side of the mounting frame away from the filter screen, the mounting frame is clamped and limited and installed on the limit block, the mounting frame and the end of the exhaust pipe are flush, an air outlet is opened on the mounting plate near the collecting filter bag, and a blower is fixedly installed on the side of the mounting plate away from the air outlet.

[0009] As a further solution of the present invention: the spray tower is provided with a purification and cleaning component, and the purification and cleaning component includes a spray plate rotatably mounted on the inner top wall of the spray tower, a gear ring is fixedly mounted on the spray plate, a plurality of teeth are fixedly mounted on the inner wall of the spray tower at positions corresponding to the gear ring, mutually meshing gears are installed between the gear ring and the teeth, and a mounting column with a brush is fixedly mounted on the side of the gear close to the water collection tank.

[0010] As a further solution of the present invention: a liquid guide plate is fixedly installed on the top of the spray tower, and the liquid guide plate and the spray plate are rotatably connected to each other. A water pipe is installed on the liquid guide plate, and the other end of the water pipe is wrapped around the outer surface of the smoke delivery pipe. A second motor is fixedly installed on the side of the liquid guide plate away from the spray tower.

[0011] As a further solution of the present invention: the output end of the second motor slides through the spray tower and is fixedly installed on the spray plate, a slide groove is provided on the inner wall of the spray tower close to the water collection tank, a slider is slidably installed in the slide groove, the end of the mounting column away from the gear is rotatably installed on the slider, the brush is fixedly installed on the outer surface of the mounting column, and the side of the brush away from the mounting column slides in fit with the inner wall of the spray tower.

[0012] As a further solution of the present invention: a filter assembly is provided on the water collecting pool, and the filter assembly includes a filter plate that is slidably installed in the water collecting pool, a rectangular through hole is opened on the side of the water collecting pool close to the smoke delivery pipe, a connecting block with a limiting column is slidably installed in the rectangular through hole, and a third motor with a swing plate is fixedly installed on the side of the water collecting pool close to the rectangular through hole.

[0013] As a further solution of the present invention: the swing plate is fixedly installed on the output end of the third motor, a waist-shaped through hole is opened on the swing plate, the limit column is slidably installed in the waist-shaped through hole, a limit rod is slidably installed on the connecting block, both ends of the limit rod are fixedly installed on the inner wall of the rectangular through hole, and the side of the connecting block away from the limit column is fixedly installed in the middle position of the filter plate.

[0014] As a further solution of the present invention: the filter plate is slidably installed on the scraper, and a guide rod is installed on the scraper for sliding through. Both ends of the guide rod are fixedly installed on the inner wall of the filter plate. A spring and a pull rope are fixedly installed on both sides of the scraper respectively. The end of the pull rope away from the scraper slides through the filter plate, and the end of the pull rope away from the scraper is fixedly installed on the inner wall of the filter plate. The spring is nested on the outer surface of the guide rod.

[0015] Beneficial effects of the present invention: (1) The filter net in the collection assembly cooperates with the collection filter bag to facilitate multi-stage filtration of the purified flue gas, and is convenient for timely replacement and cleaning of the filter net and the collection filter bag. The filter net is convenient for protecting the filtering capacity of the collection filter bag and for dumping and collecting impurities in the collection filter bag, which is beneficial to improving the filtering capacity of the device, the replacement and cleaning capacity of the device, and the dumping and collection capacity of the device; (2) The spray plate in the purification and cleaning component cooperates with the brush to clean the inner wall of the spray tower while the spray tower 2 is spraying, purifying and cooling, thereby avoiding the accumulation of impurities on the inner wall of the spray tower as much as possible, which is beneficial to improving the working efficiency of the device spraying, improving the cleaning ability of the device, and improving the working efficiency of the device purification and impurity removal; (3) The swing plate in the filter assembly cooperates with the scraper to swing and drive the filter plate to alternately filter and collect the filtered impurities in the water collection tank, which is convenient for the scraper to scrape and collect the impurities, which is beneficial to improving the alternating filtering capacity of the device, the scraping and collection capacity of the device, and the working efficiency of the device in purifying and collecting dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of a dust collecting device for purifying solid waste pollution in the flue gas of a zinc smelting fuming furnace according to the present invention; Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at A in the middle; Figure 3 This is a schematic diagram of the internal structure of a dust collecting device for purifying solid waste pollution in the flue gas of a zinc smelting fuming furnace according to the present invention; Figure 4 yes Figure 3 Schematic diagram of the enlarged structure at B in the middle; Figure 5 It is a side structural schematic diagram of a dust collecting device for purifying solid waste pollution in the flue gas of a zinc smelting fuming furnace according to the present invention; Figure 6 yes Figure 5 Schematic diagram of the enlarged structure at C in the middle; Figure 7 This is a schematic diagram of the structure of a dust collecting device for purifying solid waste pollution in the flue gas of a zinc smelting fuming furnace according to the present invention, viewed from above; Figure 8 yes Figure 7 Schematic diagram of the enlarged structure at point D in the middle.

[0018] Figure: 1, water collection tank; 2, spray tower; 3, smoke delivery pipe; 4, collection assembly; 41, exhaust pipe; 42, support column; 43, collection tank; 44, mounting plate; 45, blower; 46, cleaning brush; 47, filter; 48, rotating shaft; 49, first motor; 410, mounting frame; 411, collection filter bag; 412, limit block; 413, fixing plate; 414, air outlet; 415, mounting slot; 5, purification and cleaning assembly; 51, spray plate; 5 2. Ring gear; 53. Gear; 54. Teeth; 55. Mounting column; 56. Brush; 57. Second motor; 58. Liquid guide plate; 59. Water pipe; 510. Chute; 511. Slider; 6. Filter assembly; 61. Filter plate; 62. Guide rod; 63. Pull rope; 64. Rectangular through hole; 65. Limit rod; 66. Connecting block; 67. Limit column; 68. Swing plate; 69. Waist-shaped through hole; 610. Third motor; 611. Spring; 612. Scraper. DETAILED DESCRIPTION

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

[0020] See also Figures 1-8 As shown, the present invention is a dust collection device for purifying solid waste pollution in the flue gas of a zinc smelting fuming furnace, comprising a water collecting tank 1, a spray tower 2 fixedly installed on the top of the water collecting tank 1, the spray tower 2 is used to cool the flue gas of the fuming furnace and remove impurities, and the water in the spray tower facilitates the desulfurization, denitrification and adsorption of heavy metals in the flue gas, and can also cool the flue gas. A smoke delivery pipe 3 is installed in communication with the spray tower 2 near the water collecting tank 1, and a collection component 4 is provided on the spray tower 2; The collecting assembly 4 includes an exhaust pipe 41 fixedly mounted on the top of the spray tower 2 at a position away from the smoke delivery pipe 3, and a collecting tank 43 is fixedly mounted on the side of the water collection tank 1 away from the smoke delivery pipe 3. The collecting tank 43 is used to collect impurities filtered out of the filter screen 47 and the collection filter bag 411. A support column 42 and a mounting plate 44 are fixedly mounted on the side of the collecting tank 43 close to the exhaust pipe 41. An air outlet 414 is provided on the mounting plate 44 close to the collection filter bag 411. A blower 45 is fixedly mounted on the side of the mounting plate 44 away from the air outlet 414. The wind from the blower 45 blows toward the collection filter bag 411 through the air outlet 414, which makes it easy to turn the collection filter bag 411 over and dump the impurities filtered out of the collection filter bag 411. The other end of the support column 42 is rotatably mounted with a rotating shaft 48. Three filter The net 47 and the three filter nets 47 play the role of alternately filtering the flue gas in the exhaust pipe 41, which is convenient for filtering oil stains in the flue gas and protecting the filtering ability of the collection filter bag 411. The oil stains will stick to the collection filter bag 411, resulting in poor filtering ability, which is convenient for cleaning and replacing the filter net 47, which is beneficial to improving the filtering ability of the filter net 47. The filter net 47 performs preliminary filtration on the flue gas filtered by the collection filter bag 411, reducing the filtered impurities in the collection filter bag 411. Three mounting frames 410 with collection filter bags 411 are fixedly installed on one end of the rotating shaft 48 near the mounting plate 44. The collection filter bag 411 plays the role of final filtration of the flue gas filtered by the exhaust pipe 41. The first motor 49 is fixedly installed on the side of the support column 42 near the spray tower 2. The output end of the first motor 49 slides through the support column 42 and is fixedly mounted on the rotating shaft 48.

[0021] The exhaust pipe 41 is provided with a mounting groove 415 at the position of the filter 47. The filter 47 is slidably installed in the mounting groove 415 to filter impurities and oil stains in the smoke. The end of the support column 42 away from the collection tank 43 is fixedly installed on the exhaust pipe 41. A cleaning brush 46 is fixedly installed at the position of the support column 42 near the end of the filter 47. The cleaning brush 46 plays the role of the filter 47. The filter 47 is slidably installed in the cleaning brush 46. The rotating shaft 48 rotates on the cleaning brush 46. A fixing plate 413 is fixedly installed at the position of the exhaust pipe 41 near the mounting frame 410. The fixing plate 413 plays the role of limiting and fixing the rotating shaft 48. The rotating shaft 48 slides through the fixing plate 413. The support column 42 is fixedly installed at the top of one end away from the spray tower 2 The limiting block 412 and the collecting filter bag 411 are fixedly installed on the side of the installation frame 410 away from the filter screen 47. The limiting block 412 plays the role of limiting and stabilizing the installation frame 410. The installation frame 410 is installed on the limiting block 412 with a snap-on limit. The installation frame 410 is flush with the end of the exhaust pipe 41, which is convenient for the final filtration of the flue gas discharged from the exhaust pipe 41, and for multi-stage filtration of the purified flue gas, and for timely replacement and cleaning of the filter screen 47 and the collecting filter bag 411. The filter screen 47 is convenient for protecting the filtering capacity of the collecting filter bag 411, and is convenient for dumping and collecting impurities in the collecting filter bag 411, which is beneficial to improving the filtering capacity of the device, improving the replacement and cleaning capacity of the device, and improving the dumping and collection capacity of the device.

[0022] See also Figure 3 、 Figure 4 、 Figure 5 、 Figure 7 and Figure 8 As shown, the spray tower 2 is provided with a purification and cleaning component 5, which includes a spray plate 51 rotatably mounted on the top wall of the spray tower 2. The spray plate 51 sprays and purifies the flue gas sent in by the smoke delivery pipe 3 and cools it. A gear ring 52 is fixedly mounted on the spray plate 51. A plurality of teeth 54 are fixedly mounted on the inner wall of the spray tower 2 at a position corresponding to the gear ring 52. A mutually meshing gear 53 is installed between the gear ring 52 and the teeth 54. The spray plate 51 drives the gear 53 to roll on the teeth 54 through the meshing of the gear ring 52, and at the same time drives the hair through the mounting column 55. The brush 56 rotates and cleans the inner wall of the spray tower 2. A mounting post 55 with a brush 56 is fixedly installed on the side of the gear 53 close to the water collection tank 1. The brush 56 is fixedly installed on the outer surface of the mounting post 55. The side of the brush 56 away from the mounting post 55 slides in contact with the inner wall of the spray tower 2. A slide groove 510 is provided on the inner wall of the spray tower 2 close to the water collection tank 1. A slider 511 is slidably installed in the slide groove 510. The mounting post 55 is rotatably installed on the slider 511 at the end away from the gear 53. The slider 511 serves to support and stabilize the mounting post 55.

[0023] A liquid guide plate 58 is fixedly installed on the top of the spray tower 2. The liquid guide plate 58 and the spray plate 51 are rotatably connected to each other. A water pipe 59 is installed on the liquid guide plate 58. The other end of the water pipe 59 is wrapped around the outer surface of the smoke delivery pipe 3. The temperature of the liquid in the water pipe 59 facilitates the preliminary cooling operation of the flue gas transported by the smoke delivery pipe 3. A second motor 57 is fixedly installed on the side of the liquid guide plate 58 away from the spray tower 2. The output end of the second motor 57 slides through the spray tower 2 and is fixedly installed on the spray plate 51, so as to clean the inner wall of the spray tower 2 while the spray tower 2 is spraying, purifying and cooling, and avoid the accumulation of impurities on the inner wall of the spray tower 2 as much as possible. Rotary spraying is conducive to improving the spraying efficiency of the device, improving the cleaning ability of the device, and improving the purification and impurity removal efficiency of the device.

[0024] See also Figure 1 、 Figure 3 、 Figure 5 、 Figure 6 and Figure 7 As shown, a filter assembly 6 is provided on the water collection pool 1, and the filter assembly 6 includes a filter plate 61 that is slidably installed in the water collection pool 1. A rectangular through hole 64 is provided on the side of the water collection pool 1 close to the smoke delivery pipe 3. A connecting block 66 with a limiting column 67 is slidably installed in the rectangular through hole 64. A third motor 610 with a swing plate 68 is fixedly installed on the side of the water collection pool 1 close to the rectangular through hole 64. The swing plate 68 is fixedly installed on the output end of the third motor 610. A waist-shaped Through hole 69, the limiting column 67 is slidably installed in the waist-shaped through hole 69, and the limiting rod 65 is slidably installed on the connecting block 66. The two ends of the limiting rod 65 are fixedly installed on the inner wall of the rectangular through hole 64. The limiting rod 65 plays the role of limiting and stabilizing the connecting block 66. The side of the connecting block 66 away from the limiting column 67 is fixedly installed in the middle position of the filter plate 61. The swing plate 68 facilitates driving the filter plate 61 to alternately filter the sprayed liquid in the water collection tank 1 through the limiting column 67 and the connecting block 66.

[0025] The scraper 612 is slidably mounted in the filter plate 61. The scraper 612 is convenient for scraping the impurities collected in the filter plate 61 to the edge for collection. A guide rod 62 is slidably mounted on the scraper 612. Both ends of the guide rod 62 are fixedly mounted on the inner wall of the filter plate 61. The guide rod 62 plays a role in guiding and stabilizing the scraper 612. A spring 611 and a pull rope 63 are fixedly mounted on both sides of the scraper 612. The end of the pull rope 63 away from the scraper 612 slides through the filter plate 61. The end of the pull rope 63 away from the scraper 612 is fixedly mounted on the inner wall of the filter plate 61. On the inner wall of the filter plate 61, pulling the pull rope 63 facilitates driving the scraper 612 to slide on the guide rod 62 to squeeze the spring 611. The spring 611 is nested and installed on the outer surface of the guide rod 62. The spring 611 plays a role in driving the scraper 612 to elastically reset, so that it is convenient to swing and drive the filter plate 61 to alternately filter and collect the filtered impurities in the water collection tank 1, and facilitate the scraper 612 to scrape and collect the impurities, which is beneficial to improve the alternating filtering ability of the device, the scraping and collection ability of the device, and the working efficiency of the device in purifying and collecting dust.

[0026] The working principle of the present invention is as follows: when using the device, the smoke is first sent into the spray tower 2 by the smoke delivery pipe 3, and then the water pipe 59 is used to spray the purification solution capable of desulfurization, denitrification and heavy metal removal on the smoke in the spray tower 2 through the liquid guide plate 58 through the spray plate 51, and then the second motor 57 is started, so that the output end of the second motor 57 drives the spray plate 51 to rotate and spray in the spray tower 2, and at the same time, the spray plate 51 drives the ring gear 52 to mesh and rotate on the gear 53, and at the same time, the gear 53 meshes and rotates on the ring gear 52 to advance, and at the same time, the gear 53 drives the brush 56 to rotate and clean the inner wall of the spray tower 2 through the mounting column 55, and at the same time, the mounting column 55 rotates on the slider 511, and at the same time The mounting post 55 drives the slider 511 to slide in the slide groove 510, and the smoke after spraying and purification in the spray tower 2 enters the exhaust pipe 41 for discharge, and the purified smoke passes through the filter screen 47 and the collection filter bag 411 for filtration and discharge; after a long period of filtration, the filter screen 47 and the collection filter bag 411 are replaced, and the first motor 49 is started first, and the output end of the first motor 49 drives the rotating shaft 48 to rotate on the fixed plate 413, and at the same time, the rotating shaft 48 drives the filter screen 47 out of the mounting groove 415 to replace the next cleaning filter screen 47 into the mounting groove 415, and at the same time, the rotating shaft 48 drives the mounting frame 410 with the collection filter bag 411 to rotate out from under the limit block 412, and more Replace the installation frame 410 with the collection filter bag 411 and quickly enter the bottom of the limit block 412. At the same time, the replaced filter screen 47 is cleaned by the cleaning brush 46, so that the cleaned impurities fall into the collection tank 43 for collection. Then start the blower 45 to blow over the collection filter bag 411 through the air outlet 414, so that the impurities filtered in the collection filter bag 411 can be poured into the collection tank 43 for collection. Then, the solution with impurities after spraying passes through the filter plate 61 and enters the water collection tank 1. When the impurities on the filter plate 61 are almost collected, start the third motor 610 again, so that the output end of the third motor 610 drives the swing plate 68 to swing , so that the swing plate 68 drives the limiting column 67 to slide in the waist-shaped through hole 69, and at the same time, the limiting column 67 drives the connecting block 66 to slide in the rectangular through hole 64, so that the connecting block 66 slides on the limiting rod 65, and at the same time, the connecting block 66 drives the filter plate 61 to slide alternately in the water collection tank 1, and then pull the pull rope 63, so that the pull rope 63 drives the scraper 612 to slide on the third motor 610 to squeeze one of the springs 611 and stretch one of the springs 611, and at the same time, the scraper 612 scrapes the impurities on the inner bottom wall of the filter plate 61 to one side for collection, and then releases the pull rope 63, so that the elastic reset force of the two springs 611 drives the scraper 612 to elastically reset to the middle position of the filter plate 61.

[0027] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A dust collecting device for purifying solid waste pollution in the flue gas of a zinc smelting fuming furnace, comprising a water collecting tank (1), characterized in that: A spray tower (2) is fixedly installed on the top of the water collection tank (1); a smoke delivery pipe (3) is connected and installed on the spray tower (2) near the water collection tank (1); and a collection assembly (4) is provided on the spray tower (2); The collecting assembly (4) comprises an exhaust pipe (41) fixedly mounted on the top of the spray tower (2) at a position away from the smoke delivery pipe (3); a collecting pool (43) is fixedly mounted on the side of the water collecting pool (1) away from the smoke delivery pipe (3); a support column (42) and a mounting plate (44) are fixedly mounted on the side of the collecting pool (43) close to the exhaust pipe (41); a rotating shaft (48) is rotatably mounted on the other end of the supporting column (42); three filter screens (47) are fixedly mounted on the end of the rotating shaft (48) close to the supporting column (42); three mounting frames (410) with collecting filter bags (411) are fixedly mounted on the end of the rotating shaft (48) close to the mounting plate (44); and a first motor (49) is fixedly mounted on the side of the supporting column (42) close to the spray tower (2).

2. The device for purifying and collecting dust from flue gas of a zinc smelting fuming furnace according to claim 1, characterized in that: The exhaust pipe (41) is provided with a mounting groove (415) at the position of the filter screen (47), and the end of the support column (42) away from the collection tank (43) is fixedly mounted on the exhaust pipe (41), and a cleaning brush (46) is fixedly mounted at a position of the support column (42) near the end of the filter screen (47).

3. The dust collecting device for purifying solid waste pollution in the flue gas of a zinc smelting fuming furnace according to claim 2, characterized in that: The filter (47) is slidably installed in the cleaning brush (46), the rotating shaft (48) rotates on the cleaning brush (46), the output end of the first motor (49) slides through the support column (42) and is fixedly installed on the rotating shaft (48), and a fixed plate (413) is fixedly installed at a position of the exhaust pipe (41) close to the installation frame (410), and the rotating shaft (48) slides through the fixed plate (413).

4. The device for purifying and collecting dust from flue gas of a zinc smelting fuming furnace according to claim 3, characterized in that: A limit block (412) is fixedly installed on the top of one end of the support column (42) away from the spray tower (2), and the collecting filter bag (411) is fixedly installed on the side of the installation frame (410) away from the filter screen (47). The installation frame (410) is fixedly installed on the limit block (412), and the end of the installation frame (410) and the exhaust pipe (41) are flush. An air outlet (414) is opened at a position of the installation plate (44) close to the collecting filter bag (411), and a blower (45) is fixedly installed on the side of the installation plate (44) away from the air outlet (414).

5. The device for purifying and collecting dust from flue gas of a zinc smelting fuming furnace according to claim 1, characterized in that: The spray tower (2) is provided with a purification and cleaning component (5), and the purification and cleaning component (5) includes a spray plate (51) rotatably mounted on the inner top wall of the spray tower (2), a gear ring (52) fixedly mounted on the spray plate (51), a plurality of teeth (54) fixedly mounted on the inner wall of the spray tower (2) at positions corresponding to the gear ring (52), a mutually meshing gear (53) mounted between the gear ring (52) and the teeth (54), and a mounting column (55) with a brush (56) fixedly mounted on the side of the gear (53) close to the water collection tank (1).

6. The device for purifying and collecting dust from flue gas of a zinc smelting fuming furnace according to claim 5, characterized in that: A liquid guide plate (58) is fixedly installed on the top of the spray tower (2), and the liquid guide plate (58) and the spray plate (51) are rotatably connected to each other. A water pipe (59) is installed on the liquid guide plate (58), and the other end of the water pipe (59) is wound around the outer surface of the smoke delivery pipe (3). A second motor (57) is fixedly installed on the side of the liquid guide plate (58) away from the spray tower (2).

7. The device for purifying and collecting dust from flue gas of a zinc smelting fuming furnace according to claim 6, characterized in that: The output end of the second motor (57) slides through the spray tower (2) and is fixedly mounted on the spray plate (51). A chute (510) is provided on the inner wall of the spray tower (2) at one end close to the water collecting tank (1). A slider (511) is slidably mounted in the chute (510). The end of the mounting column (55) away from the gear (53) is rotatably mounted on the slider (511). The brush (56) is fixedly mounted on the outer surface of the mounting column (55). The side of the brush (56) away from the mounting column (55) is in sliding contact with the inner wall of the spray tower (2).

8. The device for purifying and collecting dust from flue gas of a zinc smelting fuming furnace according to claim 1, characterized in that: The water collecting pool (1) is provided with a filter assembly (6), and the filter assembly (6) includes a filter plate (61) that is slidably installed in the water collecting pool (1). A rectangular through hole (64) is provided on a side of the water collecting pool (1) close to the smoke delivery pipe (3), and a connecting block (66) with a limiting column (67) is slidably installed in the rectangular through hole (64). A third motor (610) with a swing plate (68) is fixedly installed on a side of the water collecting pool (1) close to the rectangular through hole (64).

9. The device for purifying and collecting dust from flue gas of a zinc smelting fuming furnace according to claim 8, characterized in that: The swing plate (68) is fixedly mounted on the output end of the third motor (610), a waist-shaped through hole (69) is provided on the swing plate (68), the limiting column (67) is slidably mounted in the waist-shaped through hole (69), a limiting rod (65) is slidably mounted on the connecting block (66), both ends of the limiting rod (65) are fixedly mounted on the inner wall of the rectangular through hole (64), and the side of the connecting block (66) away from the limiting column (67) is fixedly mounted on the middle position of the filter plate (61).

10. The device for purifying and collecting dust from flue gas of a zinc smelting fuming furnace according to claim 9, characterized in that: The filter plate (61) is slidably mounted on a scraper (612), and a guide rod (62) is slidably mounted on the scraper (612). Both ends of the guide rod (62) are fixedly mounted on the inner wall of the filter plate (61). A spring (611) and a pull rope (63) are fixedly mounted on both sides of the scraper (612). One end of the pull rope (63) away from the scraper (612) slides through the filter plate (61), and one end of the pull rope (63) away from the scraper (612) is fixedly mounted on the inner wall of the filter plate (61). The spring (611) is nested and mounted on the outer surface of the guide rod (62).

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