Industrial silicon furnace flue gas particle dust removal equipment

Abstract

The utility model discloses flue gas particle dust removal equipment for an industrial silicon furnace, which belongs to the technical field of waste gas treatment, can perform primary filtering treatment on larger particle impurities in flue gas through water spraying atomization treatment, and can perform secondary filtering treatment on finer particle impurities in the flue gas through secondary filtering treatment of a filter screen. By means of multi-stage filtering, it can be guaranteed that no particle impurities are discharged along with smoke after the smoke is filtered and discharged, and it is guaranteed that follow-up work is smoothly carried out. The industrial silicon furnace flue gas particle dust removal equipment comprises a dust removal cylinder, a dust removal cavity is formed in the dust removal cylinder, the dust removal cavity is provided with a second filtering assembly used for assisting in flue gas particle filtering, an atomization dust removal assembly and a gas distribution assembly from top to bottom, a guide pipe is horizontally installed on the side edge, close to the bottom, of the dust removal cylinder, and the guide pipe is communicated with the gas distribution assembly; an air outlet pipe is mounted at the top of the dust removal cylinder, a communicating cavity is formed in the air outlet pipe, a fixing frame is fixed in the communicating cavity, and an air guide wheel is rotationally arranged on the fixing frame.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas treatment, and in particular relates to industrial silicon furnace fume particle dust removal equipment. Background Art

[0002] Silicon smelting refers to the process of reducing silicon ore with a carbonaceous reducing agent to produce elemental silicon. Industrial silicon products include refined industrial silicon, polycrystalline silicon, and monocrystalline silicon. Silicon smelting generally refers to the production of crude silicon. Silicon smelting is carried out in a silicon furnace. Because an electric arc is used as the high-temperature heat source, it is called electrothermal silicon smelting. Silicon smelting primarily involves three steps: charge preparation, smelting, and silicon extraction. During silicon furnace production, silicon furnace flue gas is generated, which contains a large amount of residual soot particles. Direct emission of these gases could impact the environment, necessitating dust removal.

[0003] Existing industrial silicon furnace flue gas particle dust removal equipment, when filtering the flue gas, mostly directly uses filter screens or filter bags to achieve overall dust removal of flue gas particles. The dust removal is relatively simple. When the flue gas particle content is high, the filter screens or filter bags need to be frequently replaced to achieve stable filtering operation. The overall operation is relatively cumbersome. Therefore, an industrial silicon furnace flue gas particle dust removal equipment is needed to assist in solving this problem. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, the purpose of the present utility model is to provide an industrial silicon furnace flue gas particle dust removal equipment. When working, the industrial silicon furnace flue gas particle dust removal equipment can perform preliminary filtering treatment on larger particulate impurities in the flue gas through water spray atomization treatment, and can perform secondary filtering treatment on finer particulate impurities in the flue gas through secondary filtering treatment of the filter net. Through multi-stage filtration, it can ensure that no particulate impurities are discharged with the flue gas after filtering and discharge, thereby ensuring that subsequent work proceeds smoothly.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the utility model provides an industrial silicon furnace flue gas particle dust removal device, which includes a dust removal cylinder, a dust removal chamber is provided inside the dust removal cylinder, and the dust removal chamber is respectively provided with a second filter component for assisting in filtering flue gas particles, an atomizing dust removal component, and an air distribution component from top to bottom. A conduit is horizontally installed on the side of the dust removal cylinder near the bottom, and the conduit is connected to the air distribution component;

[0008] A liquid outlet pipe is installed at the bottom of the dust collector, a butterfly valve is installed at the liquid outlet pipe, an air outlet pipe is installed at the top of the dust collector, a connecting cavity is opened inside the air outlet pipe, a fixing frame is fixed in the connecting cavity, an air guide wheel is rotatably provided on the fixing frame, and a servo motor for assisting the rotation of the air guide wheel is installed on the side of the fixing frame away from the air guide wheel.

[0009] Furthermore, the second filter assembly includes a filter screen fixed in the dust removal chamber, a cleaning brush is installed at the bottom of the filter screen, a cleaning motor for assisting the rotation of the cleaning brush is installed at the top of the second filter assembly, a receiving seat is protrudingly provided at the middle section of the dust removal cylinder, and an ascending hole for rising air flow is provided at the center of the receiving seat, and a collection box is plugged into and installed on the dust removal cylinder directly above the receiving seat.

[0010] Furthermore, a slot for the collection box to be inserted is provided on the dust collector cylinder, fixing ears are symmetrically protruding on both sides of the collection box, and fixing ears are symmetrically protruding at both ends of the slot, and the two fixing ears are positioned and fastened by fixing bolts.

[0011] Furthermore, a receiving cavity for receiving particulate impurities is provided on the collecting box, and a handle is protrudingly provided on the outer side of the collecting box.

[0012] Furthermore, the atomizing dust removal assembly includes a liquid guide ring, and several liquid guide rings are arranged in sequence from the inside to the outside. Two adjacent liquid guide rings are connected through a nozzle. A connecting pipe is installed at the bottom of the liquid guide ring. A spray pipe is installed at the center of the atomizing dust removal assembly. The spray pipe is installed on the dust removal cylinder and is connected to the water pipe.

[0013] Furthermore, the air distribution assembly includes an air guide pipe, an air distribution plate is fixed at the top of the air guide pipe, a conducting cavity is opened inside the air distribution plate, an air outlet nozzle is installed at the top of the air distribution assembly, and the conducting cavity is connected to the air outlet nozzle.

[0014] Furthermore, a plurality of the air outlet nozzles are provided, and the plurality of the air outlet nozzles are arranged in a circular array with the axis of the air distribution disk as the center.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The utility model can achieve the following goals through the cooperation between the second filter assembly arranged inside the dust removal cylinder, the atomizing dust removal assembly and the air distribution assembly, etc., and can perform preliminary filtering treatment on larger particle impurities in the flue gas through water spray atomization treatment during operation, and can perform secondary filtering treatment on finer particle impurities in the flue gas through secondary filtering treatment of the filter net. The multi-stage filtration can ensure that no particle impurities are discharged with the flue gas after the flue gas is filtered and discharged, thereby ensuring that subsequent work can proceed smoothly.

[0018] The utility model cooperates with the cleaning brush and the cleaning motor provided at the bottom of the filter screen, so that the impurities adsorbed on the bottom of the filter screen can be effectively scraped and cleaned during operation, ensuring continuous operation. At the same time, the collection box provided can effectively receive the scraped impurities, avoiding the need for frequent cleaning of the filter screen as much as possible, and ensuring smooth operation.

[0019] The utility model, through the coordination between the arranged air outlet pipe and the guide wheel and servo motor therein, can assist in sucking out the airflow inside the dust collector during operation, thereby assisting in guiding the smoke to rise, and trying to avoid the direct discharge of smoke through the liquid outlet pipe affecting the overall filtering effect of the smoke. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a structural diagram of the utility model;

[0022] Figure 2 It is a longitudinal sectional view of the utility model;

[0023] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0025] The marks in the accompanying drawings are: 1. Dust removal cylinder; 2. Conduit; 3. Liquid outlet pipe; 31. Butterfly valve; 4. Air outlet pipe; 41. Fixed bracket; 42. Air guide wheel; 43. Servo motor; 5. Atomizing dust removal assembly; 51. Liquid guide ring; 52. Connecting pipe; 53. Nozzle; 6. Air distribution assembly; 61. Air guide pipe; 62. Air distribution plate; 63. Air outlet nozzle; 7. Second filter assembly; 8. Filter screen; 9. Cleaning brush; 91. Cleaning motor; 10. Socket; 11. Collection box; 12. Fixing ear; 13. Fixing bolt. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 creative efforts are within the scope of protection of the present invention.

[0027] This specific embodiment is an industrial silicon furnace flue gas particle dust removal device, such as Figure 1 and Figure 2 As shown, the industrial silicon furnace flue gas particle dust removal equipment includes a dust removal cylinder 1, a dust removal chamber is opened inside the dust removal cylinder 1, a duct 2 is horizontally installed on the side of the dust removal cylinder 1 near the bottom, the duct 2 is connected to the air distribution component 6, a liquid outlet pipe 3 is installed at the bottom of the dust removal cylinder 1, a butterfly valve 31 is installed at the liquid outlet pipe 3, an air outlet pipe 4 is installed at the top of the dust removal cylinder 1, a connecting cavity is opened inside the air outlet pipe 4, a fixing frame 41 is fixed in the connecting cavity, an air guide wheel 42 is rotatably arranged on the fixing frame 41, and a servo motor 43 for assisting the rotation of the air guide wheel 42 is installed on the side of the fixing frame 41 away from the air guide wheel 42.

[0028] By cooperating with the air outlet pipe 4 and the guide wheel 42 and servo motor 43 therein, the airflow inside the dust collector 1 can be assisted in being sucked out during operation, thereby assisting in guiding the smoke to rise, and minimizing the direct discharge of the smoke through the liquid outlet pipe 3 from affecting the overall filtering effect of the smoke.

[0029] Reference Figure 2 and Figure 3 As shown, the dust removal chamber is provided with a second filter assembly 7 for assisting in filtering flue gas particles, an atomizing dust removal assembly 5 and an air distribution assembly 6 from top to bottom. The second filter assembly 7 includes a filter screen 8 fixed in the dust removal chamber, a cleaning brush 9 is installed at the bottom of the filter screen 8, and a cleaning motor 91 for assisting the rotation of the cleaning brush 9 is installed at the top of the second filter assembly 7. A receiving seat 10 is protrudingly provided at the middle section of the dust removal cylinder 1, and an ascending hole for ascending air flow is provided at the center of the receiving seat 10. A collection box 11 is plugged and installed on the dust removal cylinder 1 just above the corresponding receiving seat 10.

[0030] By cooperating with the cleaning brush 9 and the cleaning motor 91 provided at the bottom of the filter 8, the impurities adsorbed at the bottom of the filter 8 can be effectively scraped and cleaned during operation, ensuring continuous operation. At the same time, the collection box 11 provided can effectively receive the scraped impurities, avoiding the need for frequent cleaning of the filter 8 as much as possible, ensuring smooth operation.

[0031] The dust collector 1 is provided with a slot for the collection box 11 to be inserted, and fixing ears 12 are symmetrically protruding on both sides of the collection box 11. Fixing ears 12 are symmetrically protruding at both ends of the slot, and the two fixing ears 12 are positioned and fastened by fixing bolts 13. A receiving cavity for receiving particulate impurities is provided on the collection box 11, and a handle is protruding on the outer edge of the collection box 11.

[0032] By the cooperation between the fixing ears 12 and the fixing bolts 13, etc., the collecting box 11 can be conveniently disassembled as a whole to clean the impurities as a whole after working for a period of time.

[0033] Reference Figure 2 and Figure 4 As shown, the atomizing dust removal component 5 includes a liquid guide ring 51, and several liquid guide rings 51 are arranged in sequence from the inside to the outside. Two adjacent liquid guide rings 51 are connected by a nozzle 53. A connecting pipe 52 is installed at the bottom of the liquid guide ring 51. A spray pipe is installed at the center of the atomizing dust removal component 5. The spray pipe is installed on the dust removal cylinder 1, and the spray pipe is connected to the water pipe. The air distribution component 6 includes an air guide pipe 61, and an air distribution plate 62 is fixed at the top of the air guide pipe 61. A conducting cavity is opened inside the air distribution plate 62, and an air outlet nozzle 63 is installed at the top of the air distribution component 6. The conducting cavity is connected to the air outlet nozzle 63. There are several air outlet nozzles 63, and the several air outlet nozzles 63 are arranged in a circular array with the axis of the air distribution plate 62 as the center.

[0034] By means of the cooperation between the second filter component 7 arranged inside the dust collector 1 and the atomizing dust removal component 5 and the air distribution component 6, during operation, the larger particulate impurities in the flue gas can be preliminarily filtered through water spray atomization treatment, and the finer particulate impurities in the flue gas can be filtered for the second time through the secondary filtering treatment of the filter mesh 8. Multi-stage filtration can ensure that no particulate impurities are discharged with the flue gas after filtration, thereby ensuring that subsequent work proceeds smoothly.

[0035] Working principle:

[0036] During operation, the exhaust gas is connected to the duct 2, and the water pipe and the spray pipe are connected as a whole, and the exhaust gas is poured into the dust collector 1. At the same time, the servo motor 43 is started, and the servo motor 43 drives the air guide wheel 42 to rotate as a whole. During the rotation of the air guide wheel 42, the smoke is sucked into the air outlet pipe 4 and rises. The smoke enters the air distribution plate 62 through the air guide pipe 61 and is ejected as a whole through the air outlet nozzle 63 on the air distribution plate 62. At the same time, the liquid in the water pipe passes through the liquid guide ring 51 and the connecting pipe 52 and is ejected as a whole through the nozzle 53. During the ejection process of the nozzle 53, the particles in the smoke are auxiliary filtered, thereby completing the preliminary dust removal treatment of larger particles in the smoke. The smoke continues to rise under the negative pressure generated by the rotation of the air guide wheel 42, and the filtered liquid is discharged as a whole through the liquid outlet pipe 3.

[0037] As the flue gas continues to rise, the particles are filtered a second time through the filter 8, thereby filtering out the fine particulate impurities in the flue gas. During the filtering process, the cleaning motor 91 is started, and the cleaning motor 91 drives the cleaning brush 9 to rotate as a whole. The cleaning brush 9 rotates on the filter 8. During the rotation of the cleaning brush 9, the impurities adsorbed on the filter 8 are driven to rotate and clean effectively, and after cleaning, they fall into the receiving cavity on the collection box 11 for collection. The flue gas after the second filtration continues to move to the exhaust port of the exhaust pipe 4 under the negative pressure generated by the guide wheel 42 for discharge.

[0038] All technical features in this embodiment can be freely combined according to actual needs.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, 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 industrial silicon furnace flue gas particle dust removal device, the industrial silicon furnace flue gas particle dust removal device comprises a dust removal cylinder (1), characterized in that: A dust removal chamber is provided inside the dust removal cylinder (1), and a second filter assembly (7) for assisting in filtering smoke particles, an atomizing dust removal assembly (5), and an air distribution assembly (6) are respectively provided in the dust removal chamber from top to bottom. A conduit (2) is horizontally installed on the side of the dust removal cylinder (1) near the bottom, and the conduit (2) is in communication with the air distribution assembly (6); A liquid outlet pipe (3) is installed at the bottom of the dust removal cylinder (1), and a butterfly valve (31) is installed at the liquid outlet pipe (3). An air outlet pipe (4) is installed at the top of the dust removal cylinder (1). A communicating cavity is provided inside the air outlet pipe (4), and a fixing frame (41) is fixed in the communicating cavity. An air guide wheel (42) is rotatably provided on the fixing frame (41), and a servo motor (43) for assisting the rotation of the air guide wheel (42) is installed on a side of the fixing frame (41) away from the air guide wheel (42).

2. The industrial silicon furnace flue gas particle dust removal equipment according to claim 1, characterized in that: The second filter assembly (7) includes a filter screen (8) fixed in the dust removal chamber, a cleaning brush (9) is installed at the bottom of the filter screen (8), a cleaning motor (91) is installed at the top of the second filter assembly (7) to assist the cleaning brush (9) in rotating, a receiving seat (10) is protrudingly provided at the middle section of the dust removal cylinder (1), a rising hole for rising air flow is provided at the center of the receiving seat (10), and a collection box (11) is plugged and installed on the dust removal cylinder (1) just above the receiving seat (10).

3. The industrial silicon furnace flue gas particle dust removal equipment according to claim 2, characterized in that: The dust collecting cylinder (1) is provided with a slot for inserting the collecting box (11), and fixing ears (12) are symmetrically protruding on both sides of the collecting box (11). Fixing ears (12) are symmetrically protruding at both ends of the slot, and the two fixing ears (12) are positioned and fastened by fixing bolts (13).

4. The industrial silicon furnace flue gas particle dust removal equipment according to claim 3, characterized in that: The collecting box (11) is provided with a receiving cavity for receiving granular impurities, and a handle is protrudingly provided on the outer side of the collecting box (11).

5. The industrial silicon furnace flue gas particle dust removal equipment according to claim 1, characterized in that: The atomizing dust removal assembly (5) comprises a plurality of liquid guide rings (51), wherein the liquid guide rings (51) are sequentially arranged from the inside to the outside, and two adjacent liquid guide rings (51) are connected via a nozzle (53). A connecting pipe (52) is installed at the bottom of the liquid guide ring (51). A spray pipe is installed at the center of the atomizing dust removal assembly (5), and the spray pipe is installed on the dust removal cylinder (1). The spray pipe is connected to a water pipe.

6. The industrial silicon furnace flue gas particle dust removal equipment according to claim 1, characterized in that: The air distribution assembly (6) comprises an air guide tube (61), an air distribution plate (62) is fixed at the top of the air guide tube (61), a conducting cavity is provided inside the air distribution plate (62), an air outlet nozzle (63) is installed at the top of the air distribution assembly (6), and the conducting cavity is communicated with the air outlet nozzle (63).

7. The industrial silicon furnace flue gas particle dust removal equipment according to claim 6, characterized in that: A plurality of the air outlet nozzles (63) are provided, and the plurality of the air outlet nozzles (63) are arranged in a circular array with the axis of the air distribution disk (62) as the center.

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