Flue gas purification integrated device for industrial silicon furnace

Abstract

The invention relates to the technical field of flue gas purification, and discloses an industrial silicon furnace flue gas purification integrated device which comprises a flue gas channel, a coarse separation mechanism is fixedly connected to the side face of the flue gas channel, and a cleaning mechanism is fixedly connected to the side face, away from the flue gas channel, of the coarse separation mechanism. The top end of the cleaning mechanism is in height connection with a fine separation mechanism, the top end of the fine separation mechanism is fixedly connected with a connecting pipeline, and the bottom end of the coarse separation mechanism is fixedly connected with a collecting mechanism; after flue gas enters the gas box through the flue gas channel, large-particle impurities in the flue gas can sequentially collide with a first lower baffle, a first upper baffle, a second lower baffle and a second upper baffle, after collision, large particles fall into a collecting mechanism to be collected, a cooling nozzle can continuously spray cooling liquid for cooling, and the cooling effect is improved. The gas entering the cleaning mechanism does not contain large-particle impurities, meanwhile, the temperature is low, cooling and large-particle removing work can be conducted synchronously, and efficiency is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of flue gas purification, and more particularly to an integrated device for purifying flue gas from an industrial silicon furnace. Background Art

[0002] Industrial silicon is a basic raw material for industries such as photovoltaics, semiconductors, organic silicon, and aluminum alloys. Its production is mainly completed by smelting silica and carbonaceous reducing agents in submerged arc furnaces. The main use of industrial silicon is as an additive for non-ferrous alloys. The smelting process produces a large amount of high-temperature flue gas, and the temperature of the flue gas emitted can reach 800-1200℃. The main components of industrial silicon furnace flue gas include carbon dioxide, sulfur dioxide, carbon monoxide, nitrogen, oxygen, water vapor, and suspended solid particles such as carbon black, fly ash, and coke particles. In addition, the flue gas may also contain other harmful substances, such as heavy metals such as lead, zinc, and cadmium, and fluorides. The high concentration of dust in the flue gas has extremely high economic value, but it is also very easy to cause dust and oxidation deterioration. Therefore, the flue gas of industrial silicon furnaces needs to be purified and recovered; When purifying flue gas today, the high-temperature gas needs to be cooled quickly first, and then the impurities in it need to be separated after cooling. Therefore, the working efficiency is low. Large-sized particle impurities need to be separated from small-sized particle impurities. When separating large-sized particle impurities, they are generally separated by filters. Due to the high impurity content, the filters are often blocked. When separating small-sized impurities, it is generally separated through metal fiber tubes. During separation, the impurities are located inside the fiber tube. Therefore, after a period of use, it needs to be cleaned by reverse ventilation, which will affect its overall work efficiency. In addition, when separating impurities, the separated impurities contain relatively precious components and need to be collected. Nowadays, the impurities cannot be collected well. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides an integrated device for purifying flue gas from an industrial silicon furnace to solve the technical problems raised in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an integrated device for purifying flue gas from an industrial silicon furnace, comprising a flue gas channel, a coarse separation mechanism fixedly connected to a side of the flue gas channel, a cleaning mechanism fixedly connected to a side of the coarse separation mechanism away from the flue gas channel, a fine separation mechanism directly connected to the top of the cleaning mechanism, a connecting pipe fixedly connected to the top of the fine separation mechanism, and a collection mechanism fixedly connected to the bottom of the coarse separation mechanism; The coarse separation mechanism includes a gas box for flue gas to flow, a first lower baffle is fixedly connected to the bottom end of the gas box near the side of the flue gas channel, a first upper baffle is provided at the top end of the first lower baffle away from the side of the flue gas channel, a second lower baffle is provided at the bottom end of the first upper baffle away from the side of the first lower baffle, a second upper baffle is provided at the top end of the second lower baffle away from the side of the first upper baffle, and a partition plate is provided at the bottom end of the second upper baffle away from the side of the second lower baffle.

[0005] Furthermore, the cleaning mechanism is located at the top of the collecting mechanism, and the cleaning mechanism is fixedly connected to the collecting mechanism, the side of the connecting pipe away from the fine separation mechanism is fixedly connected to an activated carbon suction box, the side of the activated carbon suction box away from the fine separation mechanism is fixedly connected to an exhaust pipe, and the top of the activated carbon suction box is fixedly connected to an intelligent terminal.

[0006] Furthermore, the sides of the first upper baffle, the second lower baffle, the second upper baffle and the partition plate are fixedly connected to the interior of the gas box, and cooling nozzles are fixedly connected directly above the first lower baffle, the second lower baffle and the partition plate, and the bottom end of the gas box is in an open state.

[0007] Furthermore, the cleaning mechanism includes a bidirectional blade that can rotate with the flow of smoke, the interior of the bidirectional blade is fixedly connected to a rotating shaft, the bottom end of the rotating shaft is fixedly connected to a cleaning plate, the bottom end of the cleaning plate is movably connected to a filter plate, and the side of the filter plate is fixedly connected to the side of the partition plate.

[0008] Furthermore, the top end of the rotating shaft is movably connected to an upper connecting plate, the bottom end of the side surface of the rotating shaft is movably connected to a side connecting rod, and the top ends of the upper connecting plate, the side connecting rod and the cleaning plate are all fixedly connected to an inclined panel.

[0009] Furthermore, a first cone is provided on the side of the bidirectional blade, the side of the upper connecting plate is fixedly connected to the inner side of the first cone, the side of the side connecting rod is fixedly connected to the inside of the gas box, and the diameter of the filter hole in the filter plate is 10 μm.

[0010] Furthermore, the fine separation mechanism includes a metal fiber tube that can be used for filtering, the bottom end of the side of the metal fiber tube is fixedly connected to a sealing ring, the side of the sealing ring is fixedly connected to a flow tube, the top of the flow tube is fixedly connected to a second cone tube, the metal fiber tube is located in the flow tube, the bottom end of the flow tube is fixedly connected to the top of the first cone tube, and the bottom of the metal fiber tube is an opening.

[0011] Furthermore, the collecting mechanism includes a collecting block that can receive impurities, a discharge chute is provided on one side of the top of the collecting block, a discharge conical groove is provided on the other side of the top of the collecting block, and a collecting channel is provided at the bottom end of the junction of the discharge chute and the discharge conical groove.

[0012] Furthermore, the intelligent terminal collects temperature data information JW of the flue gas entering the flue gas channel, dust particle concentration data information FC of the flue gas entering the flue gas channel, and temperature data information PW of the gas in the cleaning mechanism through sensors. The intelligent terminal receives the collected data and calculates the flow rate LL of the water outlet of the cooling nozzle. The calculation formula of the flow rate LL in the cooling nozzle is: , where BZ is the preset cooling nozzle flow rate, k1, k2 and k3 are weights, and 0≤k1≤1, 0≤k2≤1, 0≤k3≤1.

[0013] Technical effects and advantages of the present invention: After the flue gas enters the interior of the gas box through the flue gas passage, the large impurities in the flue gas will collide with the first lower baffle, the first upper baffle, the second lower baffle, and the second upper baffle in sequence. After the collision, the large particles will fall into the collection mechanism for collection, and the cooling nozzle will continuously spray coolant to cool the gas, so that the gas entering the cleaning mechanism does not contain large impurities and has a lower temperature. The cooling and large particle removal work can be carried out simultaneously, which is more efficient. In the present invention, the flue gas passes through the bidirectional blades and enters the metal fiber tube. After separation and filtration by the metal fiber tube, small particles of impurities in the flue gas are also removed. The small particles of impurities fall onto the filter plate inside the metal fiber tube. When the argon gas passes through the bidirectional blades, the bidirectional blades are driven to rotate, and the rotating shaft drives the cleaning plate to rotate. When the cleaning plate rotates, it cleans the filter plate, helping the small particles of impurities to pass through the filter plate and enter the collection mechanism. Small particle impurities of the present invention will enter the discharge cone trough through the filter plate, and large particle impurities will fall into the discharge chute on the sides of the first lower baffle, the first upper baffle, the second lower baffle and the second upper baffle. The coolant sprayed by the cooling nozzle will flow to the discharge chute and the bottom of the discharge cone trough, so that the impurities under the discharge chute and the discharge cone trough are collected through the collection channel, and the impurities inside the flue gas generated by industrial silicon can be quickly recovered. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the internal structure of the rough separation mechanism of the present invention.

[0016] Figure 3 It is a schematic structural diagram of the coarse separation mechanism of the present invention.

[0017] Figure 4 It is a schematic diagram of the overall structure of the cleaning mechanism of the present invention.

[0018] Figure 5 This is a schematic diagram of the separation structure of the cleaning mechanism of the present invention.

[0019] Figure 6 It is a structural schematic diagram of the fine separation mechanism of the present invention.

[0020] Figure 7 It is a schematic structural diagram of the collection mechanism of the present invention.

[0021] Figure 8 It is a schematic structural diagram of the activated carbon suction box of the present invention.

[0022] The accompanying drawings are marked as follows: 1. flue gas channel; 2. coarse separation mechanism; 201. gas box; 202. first lower baffle; 203. first upper baffle; 204. second lower baffle; 205. second upper baffle; 206. partition plate; 207. cooling nozzle; 3. cleaning mechanism; 301. bidirectional blade; 302. rotating shaft; 303. upper connecting plate; 304. side connecting rod; 305. inclined panel; 306. cleaning plate; 307. first cone; 308. filter plate; 4. fine separation mechanism; 401. circulation pipe; 402. second cone; 403. sealing ring; 404. metal fiber cylinder; 5. collecting mechanism; 501. collecting block; 502. discharge chute; 503. discharge cone; 504. collecting channel; 6. connecting pipe; 7. activated carbon suction box; 8. exhaust pipe; 9. intelligent terminal. DETAILED DESCRIPTION

[0023] The technical solutions of the present invention will be described clearly and completely below in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The integrated device for industrial silicon furnace flue gas purification involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] Reference Figure 1 、 Figure 2 as well as Figure 8The present invention provides an integrated flue gas purification device for an industrial silicon furnace, comprising a flue gas channel 1, a coarse separation mechanism 2 being fixedly connected to the side of the flue gas channel 1, a cleaning mechanism 3 being fixedly connected to the side of the coarse separation mechanism 2 away from the flue gas channel 1, a fine separation mechanism 4 being highly connected to the top of the cleaning mechanism 3, a connecting pipe 6 being fixedly connected to the top of the fine separation mechanism 4, a collecting mechanism 5 being fixedly connected to the bottom end of the coarse separation mechanism 2, the cleaning mechanism 3 being located at the top of the collecting mechanism 5, and the cleaning mechanism 3 being fixedly connected to the collecting mechanism 5, an activated carbon suction box 7 being fixedly connected to the side of the connecting pipe 6 away from the fine separation mechanism 4, an exhaust pipe 8 being fixedly connected to the side of the activated carbon suction box 7 away from the fine separation mechanism 4, and an intelligent terminal 9 being fixedly connected to the top of the activated carbon suction box 7.

[0025] In an embodiment of the present application, when the flue gas generated by the industrial silicon furnace is purified, the flue gas enters from the flue gas channel 1, and the large and small particle impurities in the flue gas can be separated through the coarse separation mechanism 2, the cleaning mechanism 3 and the fine separation mechanism 4. At this time, the flue gas only contains harmful gases that cannot be filtered by the filter. At this time, it can be cleaned by the activated carbon suction box 7, so that the final treated gas is clean enough, and the separated large and small particle impurities will be collected by the collection mechanism 5, so the separated large and small particle impurities can be recycled to avoid waste.

[0026] Reference Figure 2 and Figure 3 The coarse separation mechanism 2 includes a gas box 201 for flue gas flow, and a first lower baffle 202 is fixedly connected to the bottom end of the gas box 201 near the side of the flue gas channel 1, and a first upper baffle 203 is provided at the top of the first lower baffle 202 away from the side of the flue gas channel 1, and a second lower baffle 204 is provided at the bottom end of the first upper baffle 203 away from the side of the first lower baffle 202, and a second upper baffle 205 is provided at the top of the second lower baffle 204 away from the side of the first upper baffle 203, and a partition plate 206 is provided at the bottom end of the second upper baffle 205 away from the side of the second lower baffle 204. The sides of the first upper baffle 203, the second lower baffle 204, the second upper baffle 205 and the partition plate 206 are all fixedly connected to the inside of the gas box 201, and a cooling nozzle 207 is fixedly connected directly above the first lower baffle 202, the second lower baffle 204 and the partition plate 206, and the bottom end of the gas box 201 is in an open state.

[0027] In the embodiment of the present application, after the flue gas enters the gas box 201, since the first lower baffle 202, the first upper baffle 203, the second lower baffle 204, the second upper baffle 205 and the partition plate 206 are arranged alternately in high and low order, the large particles of impurities will collide with the first lower baffle 202, the first upper baffle 203, the second lower baffle 204, the second upper baffle 205 and the partition plate 206 in order, thereby causing the large particles of impurities to fall into the collection mechanism 5, and the large particles of impurities can be quickly removed. There are cooling nozzles 207 above the first lower baffle 202, the second lower baffle 204 and the partition plate 206. When the cooling nozzles 207 spray water downward, they can first quickly cool down the high-temperature flue gas, and secondly assist in removing large particles of impurities. Finally, the flue gas entering the cleaning mechanism 3 will not contain large particles of impurities.

[0028] Reference Figure 4 and Figure 5 The cleaning mechanism 3 includes a bidirectional blade 301 that can rotate with the flow of smoke, and the interior of the bidirectional blade 301 is fixedly connected to a rotating shaft 302, and the bottom end of the rotating shaft 302 is fixedly connected to a cleaning plate 306, and the bottom end of the cleaning plate 306 is movably connected to a filter plate 308, and the side of the filter plate 308 is fixedly connected to the side of the partition plate 206. The top of the rotating shaft 302 is movably connected to the upper connecting plate 303, and the bottom end of the side of the rotating shaft 302 is movably connected to the side connecting rod 304, and the upper connecting plate 303, the side connecting rod 304 and the top of the cleaning plate 306 are all fixedly connected to the inclined panel 305, and the side of the bidirectional blade 301 is provided with a first cone 307, the side of the upper connecting plate 303 is fixedly connected to the inner side of the first cone 307, and the side of the side connecting rod 304 is fixedly connected to the inside of the gas box 201, and the diameter of the filter hole in the filter plate 308 is 10μm.

[0029] In the embodiment of the present application, when the flue gas passes through the bidirectional blade 301, it will drive the bidirectional blade 301 to rotate, and finally the cleaning plate 306 will rotate above the filter plate 308. The small particles of impurities inside the metal fiber tube 404 will fall down onto the filter plate 308. The diameter of the filter mesh holes in the filter plate 308 is larger than the diameter of the small particles of impurities and smaller than the diameter of the large particles of impurities. Therefore, the filter plate 308 can prevent the large particles of impurities from floating upward. When the small particles of impurities fall above the filter plate 308, the cleaning plate 306 rotates continuously above the filter plate 308, so that the small particles of impurities can pass through the filter plate 308 and enter the collection mechanism 5. The diameter of the filter hole in the filter plate 308 is 10 μm, which ensures that large particles of impurities will not pass through the filter plate 308. The upper connecting plate 303, the side connecting rod 304 and the top of the cleaning plate 306 are all provided with an inclined panel 305 to prevent impurities from remaining above the upper connecting plate 303, the side connecting rod 304 and the cleaning plate 306.

[0030] Reference Figure 6 The fine separation mechanism 4 includes a metal fiber tube 404 that can be used for filtering. The bottom end of the side of the metal fiber tube 404 is fixedly connected to a sealing ring 403. The side of the sealing ring 403 is fixedly connected to a flow tube 401. The top of the flow tube 401 is fixedly connected to the second cone 402. The metal fiber tube 404 is located in the flow tube 401. The bottom end of the flow tube 401 is fixedly connected to the top of the first cone 307. The bottom of the metal fiber tube 404 is an opening.

[0031] In the embodiment of the present application, the flue gas will be filtered again after entering the metal fiber tube 404. When the flue gas is filtered through the metal fiber tube 404, small particles of impurities cannot pass through the metal fiber tube 404 and therefore fall inside the metal fiber tube 404. The frequency of small particles of impurities clogging the metal fiber tube 404 is reduced, and the flue gas that has been filtered out of small particles of impurities by the metal fiber tube 404 will pass through the metal fiber tube 404 and automatically be filtered again to intercept small particles of impurities.

[0032] Reference Figure 7 The collecting mechanism 5 includes a collecting block 501 for receiving impurities, a discharge chute 502 is provided on one side of the top of the collecting block 501, a discharge conical groove 503 is provided on the other side of the top of the collecting block 501, and a collecting channel 504 is provided at the bottom end where the discharge chute 502 and the discharge conical groove 503 intersect.

[0033] In this embodiment, large impurities fall directly into the discharge chute 502, while small impurities pass through the filter plate 308 and into the discharge conical groove 503. The coolant sprayed by the cooling nozzle 207 flows below the discharge chute 502 and the discharge conical groove 503, and the coolant sprayed by the cooling nozzle 207 is sprayed above the filter plate 308, further helping small impurities on the filter plate 308 to pass through the filter plate 308. The large impurities, small impurities, and coolant are located at the intersection of the discharge chute 502 and the discharge conical groove 503, which is the lowest point. They can eventually be collected uniformly by the collection channel 504. Reference Figure 1 The smart terminal 9 collects the temperature data information JW of the flue gas entering the flue gas channel 1, the dust particle concentration data information FC of the flue gas entering the flue gas channel 1, and the temperature data information PW of the gas in the cleaning mechanism 3 through the sensor. The smart terminal 9 receives the collected data and calculates the flow rate LL of the water outlet of the cooling nozzle 207. The calculation formula of the flow rate LL in the cooling nozzle 207 is: , where BZ is the preset cooling nozzle 207 flow rate, k1, k2 and k3 are weights, and 0≤k1≤1, 0≤k2≤1, 0≤k3≤1, In the embodiment of the present application, when the cooling nozzle 207 discharges wastewater, if the wastewater is discharged in a uniform manner, when the flue gas temperature is low, it will cause waste of water resources. Therefore, the present application adopts three sets of data: temperature data information JW of the flue gas entering the flue gas channel 1, dust particle concentration data information FC of the flue gas entering the flue gas channel 1, and temperature data information PW of the internal gas. The flow rate LL calculated by the above three sets of data can more accurately control the water output of the cooling nozzle 207. In the case of low-temperature flue gas, the flow rate is reduced to avoid waste. In the case of high-temperature flue gas or flue gas with more dust, the flow rate is increased to ensure the filtering effect. In addition, it should be noted that when the present application collects data through sensors, the sensors are arranged in the flue gas channel 1 and the cleaning mechanism 3, and the sensors can collect corresponding data, which is a conventional technical means in this field and is not limited in detail in the present application.

[0034] The working principle of the present invention is as follows: after the industrial silicon furnace is burned, the high-temperature flue gas enters the flue gas channel 1, and the flue gas in the coarse separation mechanism 2 flows into the gas box 201. The flue gas enters the gas box 201 and first contacts the first lower baffle 202. At this time, large particles of impurities collide with the first lower baffle 202 and fall off. The flue gas flows from the top of the first lower baffle 202 to the side of the first upper baffle 203. After colliding with the first upper baffle 203 again, the flue gas flows from the bottom of the first upper baffle 203 to the second lower baffle 203. The side of the baffle 204 collides with the surface of the second lower baffle 204 again. After the collision, the flue gas flows from above the second lower baffle 204 to the side of the second upper baffle 205. After colliding with the second upper baffle 205 again, the flue gas flows from below the second upper baffle 205 to above the partition plate 206. The flue gas then enters the first cone 307. Large particles of impurities collide with the surfaces of the first lower baffle 202, the first upper baffle 203, the second lower baffle 204, and the second upper baffle 205 and fall into the collection mechanism 5. The flue gas without large particles of impurities will enter the first cone 307 from above the partition plate 206, and the flue gas is located above the filter plate 308, while the large particles of impurities fall into the collecting mechanism 5, which is now located below the filter plate 308. After the flue gas enters the first cone 307, it moves upward again, passes through the two-way blades 301, and enters the metal fiber cylinder 404. The flue gas entering the metal fiber cylinder 404 will pass through the metal fiber cylinder 404 for filtering again. When the flue gas passes through the metal fiber cylinder 404 for filtering, small particles of impurities cannot pass through. The small particles of impurities will fall through the metal fiber tube 404, and the frequency of the metal fiber tube 404 being blocked by the small particles of impurities will be reduced. The flue gas that has been filtered out of the small particles of impurities by the metal fiber tube 404 will pass through the metal fiber tube 404. The flue gas that has passed through the metal fiber tube 404 will pass through the second cone 402 and enter the connecting pipe 6. The flue gas that has entered the connecting pipe 6 will pass through the activated carbon suction box 7 to remove the harmful gases inside. After the harmful gases are removed, the flue gas will become clean gas, and the clean gas will be discharged through the exhaust pipe 8. When the flue gas passes through the bidirectional blades 301, it drives the bidirectional blades 301 to rotate. When the bidirectional blades 301 rotate, the rotating shaft 302 is driven to rotate, and the rotating shaft 302 drives the cleaning plate 306 to rotate above the filter plate 308. The small particles of impurities inside the metal fiber tube 404 fall downward onto the filter plate 308. The diameter of the filter mesh holes in the filter plate 308 is larger than the diameter of the small particles of impurities and smaller than the diameter of the large particles of impurities. Therefore, the filter plate 308 can prevent the large particles of impurities from floating upward. When the small particles of impurities fall above the filter plate 308, the cleaning plate 306 rotates continuously above the filter plate 308, so that the small particles of impurities can pass through the filter plate 308 and enter the collection mechanism 5. Large particles of impurities will fall directly into the discharge chute 502, and small particles of impurities will pass through the filter plate 308 and enter the discharge cone trough 503. The cooling nozzle 207 is set just above the partition plate 206, the second lower baffle 204 and the first lower baffle 202. Therefore, the coolant sprayed by the cooling nozzle 207 will flow to the bottom of the discharge chute 502 and the discharge cone trough 503, and the coolant sprayed by the cooling nozzle 207 will be sprayed above the filter plate 308, further assisting the small particles on the filter plate 308 to filter out the impurities. When the particulate impurities pass through the filter plate 308, the large and small impurities and the coolant will be located on the discharge chute 502 and the discharge cone trough 503. Under the action of gravity, the coolant will drive the large and small impurities to move downward synchronously, and eventually the large and small impurities and the coolant will enter the collection channel 504 together, where they can be quickly collected. After collection, they are dried. The remaining impurities after drying contain valuable silicon powder, which can be quickly recovered. When cleaning is required, dry gas is introduced in reverse from the exhaust pipe 8. The introduced dry gas will pass through the activated carbon suction box 7 and the connecting pipe 6 and finally enter the circulation pipe 401. The gas entering the circulation pipe 401 will pass through the metal fiber tube 404, thereby blowing out the impurities blocked in the metal fiber tube 404 downward. When the impurities are blown out, the gas flows downward and passes through the two-way blade 301, which will drive the two-way blade 301 to rotate again. At this time, the cooling nozzle 207 starts to spray gas downward again, and the impurities generated when the metal fiber tube 404 is cleaned will enter the collection mechanism 5 for easy collection.

[0035] Finally: The above are only 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 in the scope of protection of the present invention.

Claims

1. An integrated device for purifying flue gas from an industrial silicon furnace, comprising a flue gas channel (1), characterized in that: A coarse separation mechanism (2) is fixedly connected to the side of the flue gas channel (1), a cleaning mechanism (3) is fixedly connected to the side of the coarse separation mechanism (2) away from the flue gas channel (1), a fine separation mechanism (4) is connected to the top of the cleaning mechanism (3), a connecting pipe (6) is fixedly connected to the top of the fine separation mechanism (4), and a collecting mechanism (5) is fixedly connected to the bottom of the coarse separation mechanism (2); the coarse separation mechanism (2) comprises a gas box (201) for flue gas flow, and a gas box (201) is provided near the flue gas channel ( 1) A first lower baffle (202) is fixedly connected to the bottom end of the side surface; a first upper baffle (203) is provided at the top end of the first lower baffle (202) away from the side surface of the smoke channel (1); a second lower baffle (204) is provided at the bottom end of the first upper baffle (203) away from the side surface of the first lower baffle (202); a second upper baffle (205) is provided at the top end of the second lower baffle (204) away from the side surface of the first upper baffle (203); and a partition plate (206) is provided at the bottom end of the second upper baffle (205) away from the side surface of the second lower baffle (204).

2. The integrated device for purifying flue gas from an industrial silicon furnace according to claim 1, characterized in that: The cleaning mechanism (3) is located at the top of the collecting mechanism (5), and the cleaning mechanism (3) is fixedly connected to the collecting mechanism (5). The side of the connecting pipe (6) away from the fine separation mechanism (4) is fixedly connected to an activated carbon suction box (7). The side of the activated carbon suction box (7) away from the fine separation mechanism (4) is fixedly connected to an exhaust pipe (8). The top of the activated carbon suction box (7) is fixedly connected to an intelligent terminal (9).

3. The integrated device for purifying flue gas from an industrial silicon furnace according to claim 1, characterized in that: The side surfaces of the first upper baffle (203), the second lower baffle (204), the second upper baffle (205) and the partition plate (206) are all fixedly connected to the interior of the gas box (201); a cooling nozzle (207) is fixedly connected directly above the first lower baffle (202), the second lower baffle (204) and the partition plate (206); and the bottom end of the gas box (201) is in an open state.

4. The integrated device for purifying flue gas from an industrial silicon furnace according to claim 1, characterized in that: The cleaning mechanism (3) comprises a bidirectional blade (301) that can rotate along with the flow of smoke, the bidirectional blade (301) is fixedly connected to a rotating shaft (302) inside, the bottom end of the rotating shaft (302) is fixedly connected to a cleaning plate (306), the bottom end of the cleaning plate (306) is movably connected to a filter plate (308), and the side surface of the filter plate (308) is fixedly connected to the side surface of the partition plate (206).

5. The integrated device for purifying flue gas from an industrial silicon furnace according to claim 4, characterized in that: The top end of the rotating shaft (302) is movably connected to an upper connecting plate (303), the bottom end of the side surface of the rotating shaft (302) is movably connected to a side connecting rod (304), and the top ends of the upper connecting plate (303), the side connecting rod (304) and the cleaning plate (306) are all fixedly connected to an inclined panel (305).

6. The integrated device for purifying flue gas from an industrial silicon furnace according to claim 5, characterized in that: A first cone (307) is provided on the side of the bidirectional blade (301), the side of the upper connecting plate (303) is fixedly connected to the inner side of the first cone (307), the side of the side connecting rod (304) is fixedly connected to the inside of the gas box (201), and the diameter of the filter hole in the filter plate (308) is 10 μm.

7. The integrated device for purifying flue gas from an industrial silicon furnace according to claim 1, characterized in that: The fine separation mechanism (4) comprises a metal fiber cylinder (404) capable of filtering, wherein the bottom end of the side of the metal fiber cylinder (404) is fixedly connected to a sealing ring (403), the side of the sealing ring (403) is fixedly connected to a circulation tube (401), the top end of the circulation tube (401) is fixedly connected to a second cone cylinder (402), the metal fiber cylinder (404) is located in the circulation tube (401), the bottom end of the circulation tube (401) is fixedly connected to the top end of the first cone cylinder (307), and the bottom of the metal fiber cylinder (404) is an opening.

8. The integrated device for purifying flue gas from an industrial silicon furnace according to claim 1, characterized in that: The collecting mechanism (5) comprises a collecting block (501) capable of receiving impurities, a discharge chute (502) being provided on one side of the top of the collecting block (501), a discharge conical groove (503) being provided on the other side of the top of the collecting block (501), and a collecting channel (504) being provided at the bottom end of the junction between the discharge chute (502) and the discharge conical groove (503).

9. The integrated device for purifying flue gas from an industrial silicon furnace according to claim 2, characterized in that: The intelligent terminal (9) collects temperature data information JW of the flue gas entering the flue gas channel (1), dust particle concentration data information FC of the flue gas entering the flue gas channel (1), and temperature data information PW of the gas in the cleaning mechanism (3) through sensors. The intelligent terminal (9) receives the collected data and calculates the flow rate LL of the water outlet of the cooling nozzle (207). The calculation formula of the flow rate LL in the cooling nozzle (207) is: , where BZ is the preset cooling nozzle (207) flow rate, k1, k2 and k3 are all weights, and 0≤k1≤1, 0≤k2≤1, 0≤k3≤1.

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