Filter cartridge type anti-explosion dust removal system for post-processing workshop in polycrystalline silicon production

Abstract

The utility model belongs to the technical field of dust removal systems, and particularly relates to a polycrystalline silicon production aftertreatment workshop filter cartridge type anti-explosion dust removal system which comprises three dustproof main machines, a chimney, an efficient fan and cyclone pretreatment equipment. The three butt joints are fixedly connected with an air inlet pipeline, the other end of the air inlet pipeline is fixedly connected with a first bent access pipe, the other end of the first bent access pipe is fixedly provided with an explosion-proof valve, and the explosion-proof valve is fixedly provided with a second bent access pipe; and the other end of the second bent access pipe is fixedly connected with a straight main pipe. According to the utility model, the overall automation degree is high, the operation difficulty is low, dust generated in the polycrystalline silicon production process can be recovered, gas meeting the emission specification is discharged from the upper part of the chimney, and another step is added for environmental protection measures of polycrystalline silicon production.

Description

TECHNICAL FIELD

[0001] The utility model relates to a dust removal system, concretely relates to a polycrystalline silicon production posttreatment workshop filter cartridge type explosion-proof dust removal system. BACKGROUND

[0002] In the production process of organic silicon and polycrystalline silicon, the synthesis gas from the fluidized bed reactor contains part of solid silicon powder and catalyst and needs to be separated, and currently, the gas-solid phase material is first passed through a cyclone dust collector to remove most of the particles with equivalent diameter > 10 um, then directly enters a washing tower, the top of which uses a single body for wet dust removal, and the particles not removed in the gas-solid phase material are removed by the washing tower, and the high-boiling substance in the single body is mixed with the slag slurry from the bottom of the washing tower and discharged, while the high-boiling substance can be cracked into a mixture of target product organic chlorosilane monomer, which causes a large amount of high-boiling substance loss and increases the discharge of waste liquid; the organic silicon synthesis gas has high temperature, many fine dust particles and corrosive medium prone to hydrolysis.

[0003] Therefore, in view of the harm of dust, it is necessary to collect the dust in time to reduce the dust concentration in the working environment (workshop) and avoid harm to the physical functions of workers, and if the dust is not reduced or eliminated in time, there will be serious safety hazards when the dust concentration reaches a certain level.

[0004] Therefore, the present application designs a polycrystalline silicon production posttreatment workshop filter cartridge type explosion-proof dust removal system. SUMMARY

[0005] The main purpose of the present disclosure is to provide a polycrystalline silicon production posttreatment workshop filter cartridge type explosion-proof dust removal system to effectively solve the problems raised by the inventors in the above background.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0007] A polycrystalline silicon production posttreatment workshop filter cartridge type explosion-proof dust removal system, comprising a dustproof main machine, a chimney, a high-efficiency fan and a cyclone pretreatment device, the dustproof main machine is provided with three, and the top of each of the three dustproof main machines is fixedly connected with a butt joint, the three butt joints are fixedly connected with an air inlet pipe, the other end of the air inlet pipe is fixedly connected with a first curved inlet pipe, the other end of the first curved inlet pipe is fixedly installed with an explosion-proof valve, the explosion-proof valve is fixedly installed with a second curved inlet pipe, the other end of the second curved inlet pipe is fixedly connected with a straight main pipe, the cyclone pretreatment device is fixedly connected with a branch pipe, and the branch pipe is fixedly connected with the straight main pipe, the side of the lower end of the dustproof main machine is fixedly installed with an inclined pipe, the three inclined pipes are fixedly connected with an air outlet pipe, the other end of the air outlet pipe is fixedly connected with the input end of the high-efficiency fan, and the output end of the high-efficiency fan is fixedly connected with the chimney.

[0008] Preferably, the dustproof host is composed of an upper box body, a lower box body and a discharger, the lower box body is fixedly installed at the bottom of the upper box body, the discharger is fixedly installed at a discharge port at the bottom of the lower box body, and the butt joint is fixedly installed at the top of the upper box body.

[0009] Preferably, the chimney is composed of an exhaust cylinder, a silencer and a rain cap, the silencer is fixedly installed on the exhaust cylinder, the rain cap is connected to the top end of the exhaust cylinder, and the output end of the high-efficiency fan is communicated with the inner cavity of the exhaust cylinder.

[0010] Preferably, the side surfaces of the dustproof host and the chimney are each provided with a platform assembly, one side of each of the two platform assemblies is fixedly connected with a ladder assembly, and the platform assembly on the chimney is smaller in size than the platform assembly on the dustproof host.

[0011] Preferably, the bottom of the cyclone pretreatment equipment is fixedly installed with a first support, and the bottom of the dustproof host is fixedly installed with a second support.

[0012] Preferably, two cyclone pretreatment equipments are arranged, and the two cyclone pretreatment equipments are connected through a pipeline, and the branch pipe is fixedly connected with the pipeline.

[0013] Compared with the prior art, the dustproof host and the chimney are connected through the pipeline, the dust-containing gas is first subjected to rotational motion by the cyclone pretreatment equipment, the dust particles are separated from the gas and captured by centrifugal force, and then the dust particles are discharged by gravity, so that the dust is treated and filtered.

[0014] (1) The application has high overall automation degree, low operation difficulty, can recycle the dust generated in the production of polycrystalline silicon, and makes the emission of waste gas safer.

[0015] (2) In the application, the cyclone pretreatment equipment first makes the dust-containing gas perform rotational motion, separates and captures dust particles from the gas by centrifugal force, and then makes the dust particles fall and discharge by gravity, so that the dust is treated and filtered. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Fig. 1 is a perspective view of a filter cartridge type explosion-proof dust removal system for a polycrystalline silicon production post-treatment workshop according to the present application;

[0017] Figure 2 Fig. 4 is a connection schematic view of the dustproof host and the chimney;

[0018] Figure 3 Fig. 5 is a schematic view of another perspective view; and Figure 2 Fig. 6 is a schematic view of another perspective view.

[0019] Figure 4 shown is Figure 3 a schematic view of the chimney after the chimney is removed;

[0020] Figure 5 shown is a perspective view of the dustproof host;

[0021] Figure 6 shown is a perspective view of the ladder climbing assembly.

[0022] icon:

[0023] 1-dustproof host; 101-upper box body; 102-lower box body; 103-unloader; 104-inlet pipe; 105-outlet pipe; 2-chimney; 201-exhaust cylinder; 202-silencer; 203-rain cap; 3-explosion-proof valve; 4-high efficiency fan; 5-platform assembly; 6-ladder climbing assembly; 7-first curved inlet pipe; 8-straight main pipe; 9-branch pipe; 10-cyclone pretreatment equipment; 11-second curved inlet pipe; 12-first support; 13-second support. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Please refer to Figures 1-6 The present application provides the following embodiments:

[0026] A filter cartridge type explosion-proof dust removal system for a post-treatment workshop of polysilicon production, comprising dustproof hosts 1, chimneys 2, high efficiency fans 4 and cyclone pretreatment equipment 10, wherein the dustproof hosts are three in number, and the top of each of the three dustproof hosts is fixedly connected with a butt joint, the three butt joints are fixedly connected with one inlet pipe 104, the other end of the inlet pipe 104 is fixedly connected with a first curved inlet pipe 7, the other end of the first curved inlet pipe 7 is fixedly installed with an explosion-proof valve 3, the explosion-proof valve 3 is fixedly installed with a second curved inlet pipe 11, the other end of the second curved inlet pipe 11 is fixedly connected with a straight main pipe 8, the cyclone pretreatment equipment 10 is fixedly connected with a branch pipe 9, and the branch pipe 9 is fixedly connected with the straight main pipe 8, and an inclined pipe is fixedly installed on the side of the lower end of each dustproof host, the three inclined pipes are fixedly connected with one outlet pipe 105, the other end of the outlet pipe 105 is fixedly connected with the input end of the high efficiency fan 4, and the output end of the high efficiency fan 4 is fixedly connected with the chimney 2.

[0027] Specifically, the dustproof host 1 is composed of an upper box body 101, a lower box body 102 and a discharger 103, the lower box body 102 is fixedly installed at the bottom of the upper box body 101, the discharger 103 is fixedly installed at the discharge port of the bottom of the lower box body 102, and the adapter is fixedly installed at the top of the upper box body 101.

[0028] Specifically, the chimney 2 is composed of an exhaust cylinder 201, a silencer 202 and a rain cap 203, the silencer 202 is fixedly installed on the exhaust cylinder 201, the rain cap 203 is connected to the top end of the exhaust cylinder 201, and the output end of the high-efficiency fan 4 is communicated with the inner cavity of the exhaust cylinder 201.

[0029] Specifically, two cyclone pretreatment devices 10 are arranged, and the two cyclone pretreatment devices 10 are connected through a pipeline, and the branch pipe 9 is fixedly connected with the pipeline.

[0030] Specifically, the dustproof host 1 and the chimney 2 are both provided with a platform assembly 5, one side of the two platform assemblies 5 is fixedly connected with a ladder assembly 6, and the platform assembly 5 on the chimney 2 is smaller in size than the platform assembly 5 on the dustproof host 1.

[0031] Specifically, the bottom of the cyclone pretreatment device 10 is fixedly installed with a first support 12, and the bottom of the dustproof host 1 is fixedly installed with a second support 13.

[0032] The specific implementation of the embodiment is that: when the dust removal work in the processing workshop is performed, the high-efficiency fan 4, the cyclone pretreatment device 10, the explosion-proof valve 3 and the like are started, the cyclone pretreatment device 10 first makes the dust-containing gas rotate, separates and captures dust particles from the gas by means of centrifugal force, and makes the dust particles fall and discharge by means of gravity, so that the dust is treated and filtered, under the working of the high-efficiency fan 4, the dust enters the dustproof host 1 through the branch pipe 9, the straight main pipe 8 and the like, so as to treat the small particles in the dust, and finally the gas treated by purification enters the chimney 2 from the air outlet pipe 105, the silencer 202 can reduce noise, and the gas meeting the emission specification is discharged from above the chimney 2, which is another environmental protection measure for the production of polycrystalline silicon.

[0033] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A filter cartridge explosion-proof dust removal system for a polysilicon production post-treatment plant, characterized in that: Including dustproof host (1), chimney (2), high -efficient fan (4) and cyclone pretreatment equipment (10), the dustproof host is equipped with three, and the top of three dustproof host is fixedly connected with butt joint, three butt joint is fixedly connected with one air inlet pipe (104), the other end of air inlet pipe (104) is fixedly connected with first curved access pipe (7), the other end of first curved access pipe (7) is fixedly installed with explosion-proof valve (3), the explosion-proof valve (3) is fixedly installed with second curved access pipe (11), the other end of second curved access pipe (11) is fixedly connected with straight main pipe (8), the cyclone pretreatment equipment (10) is fixedly connected with branch pipe (9), and branch pipe (9) is fixedly connected with straight main pipe (8), the side of dustproof host lower end is fixedly installed with inclined pipe, three inclined pipes are fixedly connected with one air outlet pipe (105), the other end of air outlet pipe (105) is fixedly connected with the input end of high -efficient fan (4), and the output end of high -efficient fan (4) is fixedly connected with chimney (2).

2. A filter cartridge explosion-proof dust removal system for a post-treatment plant of a polysilicon production according to claim 1, characterized in that: The dustproof host (1) is composed of an upper box body (101), a lower box body (102) and a discharger (103), the lower box body (102) is fixedly installed at the bottom of the upper box body (101), and the discharger (103) is fixedly installed at the discharge port of the lower box body (102).

3. A filter cartridge type explosion-proof dust removal system for a post-treatment plant of a polysilicon production according to claim 1, characterized in that: The chimney (2) is composed of an exhaust cylinder (201), a silencer (202) and a rain cap (203), the silencer (202) is fixedly installed on the exhaust cylinder (201), and the rain cap (203) is connected to the top end of the exhaust cylinder (201).

4. A filter cartridge type explosion prevention and dust removal system for a post-treatment plant of a polysilicon production according to claim 1, characterized in that: The side of the dustproof host (1) and the chimney (2) is provided with a platform assembly (5), one side of two platform assemblies (5) is fixedly connected with a ladder assembly (6), and the platform assembly (5) on the chimney (2) is smaller in size than the platform assembly (5) on the dustproof host (1).

5. A filter cartridge type explosion prevention and dust removal system for a post-treatment plant of a polysilicon production according to claim 1, characterized in that: The bottom of the cyclone pretreatment equipment (10) is fixedly installed with a first bracket (12), and the bottom of the dustproof host (1) is fixedly installed with a second bracket (13).

6. A filter cartridge explosion prevention dust removal system for a post-treatment plant of a polysilicon production according to claim 1, characterized in that: The cyclone pretreatment equipment (10) is provided with two, and the two cyclone pretreatment equipment (10) are connected through a pipeline, and the branch pipe (9) is fixedly connected with the pipeline. The cyclone pretreatment equipment (10) is provided with two, and the two cyclone pretreatment equipment (10) are connected through a pipeline, and the branch pipe (9) is fixedly connected with the pipeline.

Images