CN115155218A - Industrial silicon preparation system - Google Patents

Industrial silicon preparation system Download PDF

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Publication number
CN115155218A
CN115155218A CN202210843080.1A CN202210843080A CN115155218A CN 115155218 A CN115155218 A CN 115155218A CN 202210843080 A CN202210843080 A CN 202210843080A CN 115155218 A CN115155218 A CN 115155218A
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Prior art keywords
industrial silicon
air
ash
bag
furnace
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CN202210843080.1A
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Inventor
陈洪厚
李继涛
陈洪强
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Chongqing Qianyong Silicon Industry Co ltd
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Chongqing Qianyong Silicon Industry Co ltd
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Priority to CN202210843080.1A priority Critical patent/CN115155218A/en
Publication of CN115155218A publication Critical patent/CN115155218A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/04—Cleaning filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/44—Auxiliary equipment or operation thereof controlling filtration
    • B01D46/46—Auxiliary equipment or operation thereof controlling filtration automatic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/48—Removing dust other than cleaning filters, e.g. by using collecting trays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
    • B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/74—Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element
    • B01D46/76—Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element involving vibrations
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/02—Silicon
    • C01B33/021—Preparation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/027—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using cyclone separators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention discloses an industrial silicon preparation system which comprises a first furnace, wherein the first furnace is connected with a second furnace in parallel, the first furnace and the second furnace are connected with corresponding cooling air pipes, each cooling air pipe is connected to a gas converging chamber I, a branch of the gas converging chamber I is connected with two-stage vortex dust collectors which are arranged in parallel, each two-stage vortex dust collector is connected with a corresponding main fan, each main fan is communicated to a gas converging chamber II, and the gas converging chamber II is communicated with a bag-type dust collector through a gas converging pipeline. The industrial silicon preparation system disclosed by the invention is simple in structure, can be used for preparing industrial silicon more efficiently, is high in yield of the prepared industrial silicon, and can be used for realizing timely cyclic regeneration and maintenance, so that the service life of the equipment is prolonged.

Description

Industrial silicon preparation system
Technical Field
The invention belongs to the technical field of industrial silicon preparation systems, and particularly relates to an industrial silicon preparation system.
Background
Industrial silicon is a source of a new industry chain such as photovoltaic and semiconductor, is closely related to carbon emission reduction and new energy concept advocated in the world, is a focus variety to be released to the market in the future as a wide-term future, and is also placed in the focus of market trading and enterprise protection in the future.
The preparation of industrial silicon in the prior art mainly has the following problems: the preparation process is complicated, the production in the preparation process does not reach the standard, and the service cycle of equipment is short.
Disclosure of Invention
The invention aims to provide an industrial silicon preparation system, which aims to solve the problems of substandard production and short equipment service cycle in the background technology, not only can more efficiently prepare industrial silicon, but also can prepare high-yield industrial silicon, and can realize timely cyclic regeneration and maintenance by using equipment, so that the service life of the equipment is prolonged.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides an industrial silicon preparation system which comprises a first furnace, wherein the first furnace is connected with a second furnace in parallel, the first furnace and the second furnace are connected with corresponding cooling air pipes, each cooling air pipe is connected to a gas converging chamber I, a branch of the gas converging chamber I is connected with two-stage vortex dust collectors which are arranged in parallel, each two-stage vortex dust collector is connected with a corresponding main fan, each main fan is communicated to a gas converging chamber II, and the gas converging chamber II is communicated with a bag-type dust collector through a gas converging pipeline;
one of the air gathering pipelines is connected with a back suction pipeline, a back suction fan is arranged on the back suction pipeline, the outlet air of the back suction fan is led to the air inlet channel of one of the main fans, and the air inlet channel of each main fan is provided with a mixed air port;
the bag-type dust collector comprises a rectangular shell, wherein an online monitoring device for monitoring various indexes is arranged in the rectangular shell, an ash bucket for receiving industrial silicon micro powder is arranged at the bottom of the bag-type dust collector, the ash bucket is in an inverted cone shape, and the side wall of the ash bucket comprises a polished smooth plane;
a plurality of cloth bags are hung in the bag-type dust collector and are arranged at the top of the bag-type dust collector, each cloth bag is connected with an inflation tube, and the inflation tubes are connected to an air compressor positioned outside the rectangular shell;
and conveying pipelines are respectively arranged at the connecting positions of the first furnace, the second furnace, the cooling air pipe, the air collecting chamber I, the two-stage vortex dust collector, the main fan, the back suction fan, the air collecting chamber II and the bag-type dust collector.
Preferably, as a further implementable scheme, a pulse device is arranged outside the bag-type dust collector, and the pulse device comprises a motor and a pulse head connected to the motor and capable of knocking the ash bucket.
Preferably, as a further implementable scheme, an ash outlet is arranged at the bottom end of the ash hopper, and a three-way pipe is connected to the lower part of the ash outlet.
Preferably, as a further implementable scheme, the three-way pipe comprises a first outlet and a second outlet which are opposite up and down, the first outlet is in butt joint with the ash outlet, the second outlet is connected with an ash guide valve, and the downstream of the ash guide valve is connected with a packaging unit for packaging the industrial silicon micro powder.
Preferably, as a further implementable scheme, the three-way pipe further comprises a third outlet arranged in the middle of the three-way pipe, a back ash suction valve is connected to the third outlet, and the back ash suction pipeline is connected with the back ash suction valve.
Preferably, as a further practicable scheme, the inner wall of the bag-type dust collector is coated with a dust absorption material, and the dust absorption material is mainly composed of graphene.
Preferably, as a further practicable solution, the dust-absorbing material is mainly composed of the following raw materials: the composite material comprises, by mass, 3-4 parts of graphene, 10-20 parts of glass cullet powder, 2-5 parts of mineral powder and 3-4 parts of plant ash.
Preferably, as a further implementable scheme, a plurality of spiral stirring mechanisms are arranged in the gas collecting chamber i and the gas collecting chamber ii, each spiral stirring mechanism comprises a plurality of fins, and a plurality of stirring rods are radially arranged at the end part of each fin.
Preferably, as a further implementable scheme, baffle plates are arranged inside the air collecting chamber I and the air collecting chamber II, the baffle plates are respectively arranged at two air inlet positions of the air collecting chamber I and the air collecting chamber II, and the two baffle plates are oppositely and obliquely connected to the inner walls of the air collecting chamber I and the air collecting chamber II.
Preferably, as a further practicable scheme, an exhaust pipeline for exhausting the gas after the purification treatment is arranged at the top of the bag-type dust remover.
Compared with the prior art, the invention provides an industrial silicon preparation system, which has the following beneficial effects:
in the industrial silicon preparation system, industrial gas generated in the work of a furnace and a furnace II can be directly input into a cooling air pipe through a conveying pipeline and then reaches an air converging chamber I through the cooling air pipe, after the industrial gas passes through a first device, a double-stage vortex dust collector can roughly filter large granular substances in the industrial gas, roughly filtered gas enters an air converging chamber II through a main fan and a reverse suction fan, secondary dust removal is waited for, silicon preparation is carried out, a cloth bag dust collector is selected for a secondary filtering device, industrial silicon micro powder in the industrial gas can be taken away through a cloth bag, the gas can be directly discharged into the atmosphere through a discharge pipeline, discharge is completed, formed industrial silicon micro powder is shaken through a pulse device and an air charging device and then collected, and packaged into finished products for sale.
The whole set of industrial silicon preparation system has a strict structure, two sets of dust removal devices are arranged, the requirement for preparing an ideal industrial silicon micro-powder product can be better met, in addition, the online monitoring device arranged in the bag-type dust remover can monitor the use condition of a bag in the bag-type dust remover, when the silicon micro-powder on the surface of the bag reaches a certain thickness or reaches a preset operation time, the pulse device and the inflation pipe can both clean the bag to enable the micro-powder adsorbed on the surface of the bag to fall off, then the dust guide valve of the conveying pipeline can be automatically closed through the online monitoring device in the bag-type dust remover, the reverse dust absorption valve at the lower end of the dust hopper is opened, the dust hopper and the silicon micro-powder adhered on the inner side of the surface of the bag are absorbed by the reverse suction fan, and the regeneration and cleaning effects are achieved.
In addition, in the gas collecting chamber, in order to improve the gas collecting effect of the gas collecting chamber, the spiral stirring mechanisms are specially arranged, the baffling baffle is arranged at the air inlet of each gas collecting chamber, and after the baffling baffle arranged at a specific position and the spiral stirring mechanisms with the specific structures are matched with each other for use, the gas collecting effect of the gas collecting chamber is improved, the production efficiency of the whole industrial silicon is also improved, and the yield of final products is improved.
Finally, the inner wall of the bag-type dust collector is coated with the dust absorption material, so that the dust absorption material can better absorb the silicon micropowder in the industrial gas, and is attached to the inner wall of a bag, so that the gathering effect is achieved, of course, most of the components of the whole dust absorption material are waste material recycling, the cost is low, the adsorption effect is good, in the components of the dust absorption material, only a small amount of cullet, mineral powder and plant ash are required to be added on the premise that graphene is supported, the strong adsorption effect of the graphene is utilized, the adsorption stability of the dust absorption material is improved by matching the other three substances, so that the dust absorption effect is good, particularly, the uniformity, the uniform texture and the exertion of the main agent effect are facilitated due to the fact that the addition of the plant ash increases the uniformity of the whole material, and the synergistic compatibility effect is favorable for exerting the dust absorption effect after mutual matching. Of course, in the process of specific batching, other porous materials, namely zeolite and fiber, and some common high polymer materials and inorganic materials are tried, and finally, the combination of the four materials is found to have low cost and good adsorption effect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention in any way:
FIG. 1 is a schematic diagram of a front view of an industrial silicon manufacturing system according to the present invention;
FIG. 2 is a schematic diagram of the front side structure of a bag-type dust collector in an industrial silicon production system according to the present invention;
fig. 3 is a schematic front view of a system process flow in an industrial silicon manufacturing system according to the present invention.
In the figure: 1. a first furnace; 2. a second furnace; 3. cooling the air pipe; 4. a gas collecting chamber I; 5. a two-stage vortex dust collector; 6. a main fan; 7. a back suction fan; 8. a gas converging chamber II; 9. a bag-type dust collector; 10. an on-line monitoring device; 11. a discharge conduit; 12. a delivery conduit; 13. a motor; 14. a pulse device; 15. a support; 16. an ash bucket.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, 2 and 3, the embodiment provides an industrial silicon preparation system, which includes a first furnace 1, a second furnace 2 connected in parallel to the first furnace 1, cooling air pipes 3 connected to the first furnace 1 and the second furnace 2, each cooling air pipe 3 connected to a gas collection chamber i 4, two-stage vortex dust collectors 5 connected in parallel to the gas collection chamber i 4, each two-stage vortex dust collector 5 connected to a corresponding main fan 6, each main fan communicated to a gas collection chamber ii 8, and the gas collection chamber ii 8 communicated with a bag-type dust collector 9 through a pipeline.
In the industrial preparation system of the embodiment of the present invention, the specific structure of the bag-type dust collector 9 is shown in fig. 2, the bag-type dust collector 9 includes a rectangular casing, an online monitoring device 10 for monitoring various indexes is arranged inside the rectangular casing, a plurality of bags are hung inside the rectangular casing, the bags are arranged on the top of the bag-type dust collector 9, each bag is connected with an inflation tube, and the inflation tubes are connected to an air compressor located outside the rectangular casing. The pulse device 14 is arranged outside the bag-type dust collector, and the pulse device 14 comprises a motor and a pulse head connected to the motor and capable of knocking an ash hopper 16.
The upper right side position department at sack cleaner 9 is provided with motor 13, and 9 tops of sack cleaner are provided with the discharge tube 11 that is used for discharging the gas after the purification treatment, and the downside position department of sack cleaner 9 is provided with support 15 for improve equipment stability, and the bottom position of sack cleaner 9 is provided with the ash bucket 16 that is used for accepting the industry silica miropowder, and ash bucket 16 is the back taper, and the lateral wall of ash bucket includes the smooth plane through the processing of polishing.
When the bag-type dust collector 9 works specifically, when the industrial micro dust in the bag reaches a certain thickness or reaches a preset running time, the industrial micro dust in the bag is inflated and shaken by the aid of the inflation tube and the pulse head of the pulse device 14, the industrial micro dust on the bag can be knocked and then falls down through the ash bucket, and the side wall of the ash bucket is specially set to be a smooth plane, so that the effect of accelerating falling is achieved, adhesion is avoided, and the material receiving efficiency is improved.
In order to improve the dust collection effect of the bag-type dust collector 9, a dust collection material is coated on the inner wall of the bag-type dust collector 9, and the dust collection material mainly comprises graphene. Specifically, the method comprises the following steps: the dust absorption material mainly comprises the following raw materials: 3-4 parts of graphene, 10-20 parts of glass cullet powder, 2-5 parts of mineral powder and 3-4 parts of plant ash by mass, and the adsorption effect of the product can be improved by using a specific dust absorption material.
As can be seen from fig. 3, the industrial silicon preparation system according to the embodiment of the present invention further has a back suction function, which is mainly realized by connecting a back suction pipeline to the gas collection pipeline, the back suction pipeline is provided with a back suction fan 7, the outlet air of the back suction fan 7 is introduced to the air inlet channel of one of the main fans 6, and the air inlet channel of each of the main fans 6 is provided with a mixed air port.
The bottom end of the ash hopper 16 is provided with an ash outlet, the lower part of the ash outlet is connected with a three-way pipe, the three-way pipe comprises a first outlet and a second outlet which are opposite from each other from top to bottom, and a third outlet arranged in the middle of the three-way pipe, the first outlet is in butt joint with the ash outlet, the second outlet is connected with an ash guide valve, the downstream of the ash guide valve is connected with a packaging unit for packaging industrial silicon micropowder, the third outlet is connected with an ash reverse suction valve, and a reverse suction pipeline is connected with the ash reverse suction valve. When the ash guide valve is opened and the ash back-suction valve is closed, the process of receiving and packaging the industrial silicon micro powder is smoothly carried out. When the dust guide valve is closed and the back suction valve is opened, the self-cleaning process is started, the back suction fan 7 starts to work at the moment, dust attached to the dust hopper 16 and the cloth bag enters the air collection chamber II 8 from the main fan 6 along the back suction pipeline under the effect of back suction, and the regeneration of dust collection materials in the cloth bag dust collector is also realized by utilizing the back suction force. In a word, the self-cleaning function of the production equipment is realized, the silicon micro powder after the back suction is not wasted, and the silicon micro powder is driven by the main fan 6 to enter the main flow again for collection and utilization. And after the back suction flow is finished, closing the back suction valve, opening the ash guide valve again, and re-entering the normal industrial silicon preparation production flow.
And conveying pipelines 12 are respectively arranged at the connecting positions of the first furnace 1, the second furnace 2, the cooling air pipe 3, the air converging chamber I4, the two-stage vortex dust collector 5, the main fan 6, the reverse suction fan 7, the air converging chamber II 8 and the bag-type dust collector 9. Bag-type dust collector 9, doublestage vortex dust collector 5, main blower 6, reverse suction fan 7, on-line monitoring device 10, furnace 1 and No. two furnace 2 supply power through connecting external power source respectively, discharge pipe 11 and pipeline 12 constitute by metal material respectively, and have corrosion-resistant and high temperature resistant characteristics, support 15 is connected through integration connected mode and bag-type dust collector 9, support 15 comprises metal material, and have stand wear and tear and corrosion-resistant characteristics, pipeline 12 and discharge pipe 11 are connected through bolted connection mode and bag-type dust collector 9 respectively, pulse device 14 is connected through bolted connection mode and bag-type dust collector 9.
A plurality of spiral stirring mechanisms are further arranged in the air collection chamber I4 and the air collection chamber II 8, each spiral stirring mechanism comprises a plurality of fins, a plurality of stirring rods are radially arranged at the end parts of the fins, baffle plates are arranged inside the air collection chamber I4 and the air collection chamber II 8 and are respectively arranged at two air inlet parts of the air collection chamber I4 and the air collection chamber II 8, and the two baffle plates are oppositely and obliquely connected to the inner walls of the air collection chamber I4 and the air collection chamber II 8. In order to improve the gas collection effect of the gas collection chamber, the spiral stirring mechanism is provided with a plurality of fins, the end part of each fin is provided with a stirring rod in a radiation mode, sufficient stirring airflow improves the gas collection effect, meanwhile, a baffle is further arranged at the inlet of each gas collection chamber, the baffle positioned at the upper air inlet is just inclined downwards, the baffle positioned at the lower air inlet is just inclined upwards, the spiral stirring mechanism and the baffle are arranged in opposite directions to play a role in guiding the gas, and the industrial gas is more favorably concentrated. The design of the specific structure in the air collection chamber has excellent effect in the air collection process.
Experimental example 1
To confirm the effectiveness of the dust-absorbing material of example 1 of the present invention, the following adsorption experiment was carried out:
the experimental conditions are as follows: the dust-absorbing material is tested under the constant temperature condition of 20 ℃, the components of the dust-absorbing material are respectively 1-6, the mass of each component is calculated by g, the mass of the dust-absorbing material finally formed by each group is consistent, the flow rate of the industrial silicon-containing gas is 15mL/min, the particle size of the adsorbing material is 100-200 meshes, the adsorption time is 2h, the adsorption amount of the dust-absorbing material is counted, and the specific experimental result is shown in the following table 1.
Table 1 results of performance testing
Graphene Cullet powder Mineral powder Plant ash Adsorption Capacity (mg/g)
Group 1 30 200 20 40 300
Group 2 40 100 50 30 350
Group 3 35 150 40 35 400
Group 4 10 150 40 35 200
Group 5 35 150 40 0 150
Group 6 35 80 40 35 140
From the results of the above table, it can be seen that the components used in the dust-absorbing material of the present invention are essential for the dust-absorbing material of the present invention, and the good adsorption effect can be achieved only by controlling the amounts of the components within the proper ranges, and the final adsorption effect can be affected if a component is absent or not within the range required by the present invention.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. An industrial silicon preparation system, characterized in that: the device comprises a first furnace, wherein the first furnace is connected with a second furnace in parallel, the first furnace and the second furnace are connected with corresponding cooling air pipes, each cooling air pipe is connected to a gas converging chamber I, the branch of the gas converging chamber I is connected with two parallel two-stage vortex dust collectors, each two-stage vortex dust collector is connected with a corresponding main fan, each main fan is communicated to a gas converging chamber II, and the gas converging chamber II is communicated with a bag-type dust collector through a gas converging pipeline;
one of the air gathering pipelines is connected with a back suction pipeline, a back suction fan is arranged on the back suction pipeline, the outlet air of the back suction fan is led to the air inlet channel of one of the main fans, and the air inlet channel of each main fan is provided with a mixed air port;
the bag-type dust collector comprises a rectangular shell, wherein an online monitoring device for monitoring various indexes is arranged in the rectangular shell, an ash bucket for receiving industrial silicon micro powder is arranged at the bottom of the bag-type dust collector, the ash bucket is in an inverted cone shape, and the side wall of the ash bucket comprises a polished smooth plane;
a plurality of cloth bags are hung in the bag-type dust collector and are arranged at the top of the bag-type dust collector, each cloth bag is connected with an inflation tube, and the inflation tubes are connected to an air compressor positioned outside the rectangular shell;
and conveying pipelines are respectively arranged at the connecting positions of the first furnace, the second furnace, the cooling air pipe, the air collecting chamber I, the two-stage vortex dust collector, the main fan, the back suction fan, the air collecting chamber II and the bag-type dust collector.
2. The industrial silicon production system according to claim 1, wherein: the outside of sack cleaner is provided with pulse unit, pulse unit includes the motor and connects can strike on the motor the pulse head of ash bucket.
3. An industrial silicon production system according to claim 1, wherein: the bottom end of the ash hopper is provided with an ash outlet, and the lower part of the ash outlet is connected with a three-way pipe.
4. An industrial silicon production system according to claim 3, wherein: the three-way pipe comprises a first outlet and a second outlet which are opposite up and down, the first outlet is in butt joint with the ash outlet, the second outlet is connected with an ash guide valve, and the downstream of the ash guide valve is connected with a packaging unit for packaging industrial silicon micropowder.
5. An industrial silicon production system according to claim 4, wherein: the three-way pipe is characterized by further comprising a third outlet arranged in the middle of the three-way pipe, a back ash suction valve is connected to the third outlet, and the back ash suction pipeline is connected with the back ash suction valve.
6. The industrial silicon production system according to claim 1, wherein: the inner wall of the bag-type dust collector is coated with a dust collection material, and the dust collection material mainly comprises graphene.
7. An industrial silicon production system according to claim 6, wherein: the dust absorption material mainly comprises the following raw materials: the composite material comprises, by mass, 3-4 parts of graphene, 10-20 parts of glass cullet powder, 2-5 parts of mineral powder and 3-4 parts of plant ash.
8. An industrial silicon production system according to claim 1, wherein: a plurality of spiral stirring mechanisms are arranged in the gas collecting chamber I and the gas collecting chamber II, each spiral stirring mechanism comprises a plurality of fins, and a plurality of stirring rods are radially arranged at the end part of each fin.
9. An industrial silicon production system according to claim 8, wherein: the air collection chamber I and the air collection chamber II are internally provided with baffle plates, the baffle plates are respectively arranged at two air inlet positions of the air collection chamber I and the air collection chamber II, and the baffle plates are oppositely obliquely connected to the inner walls of the air collection chamber I and the air collection chamber II.
10. The industrial silicon preparation system according to claim 1, wherein an exhaust pipeline for exhausting the gas after the purification treatment is arranged at the top of the bag-type dust remover.
CN202210843080.1A 2022-07-18 2022-07-18 Industrial silicon preparation system Pending CN115155218A (en)

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CN201572590U (en) * 2009-10-01 2010-09-08 四川华清环境工程有限公司 Industrial flue dust treatment device
CN102100990A (en) * 2009-12-18 2011-06-22 遵义市中德环保有限公司 New technology for electric furnace smoke purification and recovery of silicon powder during production of silicon metal
CN104436955A (en) * 2014-11-18 2015-03-25 马鞍山市顺达环保设备有限公司 Industrial silicon electric furnace smoke dust removal integration device
CN207546025U (en) * 2017-10-17 2018-06-29 金华天乙机械制造有限公司 A kind of dust-extraction unit of smelting furnace

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201046374Y (en) * 2007-01-26 2008-04-16 四川天环科技环保有限公司 Macrotype combined duster system
CN201572590U (en) * 2009-10-01 2010-09-08 四川华清环境工程有限公司 Industrial flue dust treatment device
CN102100990A (en) * 2009-12-18 2011-06-22 遵义市中德环保有限公司 New technology for electric furnace smoke purification and recovery of silicon powder during production of silicon metal
CN104436955A (en) * 2014-11-18 2015-03-25 马鞍山市顺达环保设备有限公司 Industrial silicon electric furnace smoke dust removal integration device
CN207546025U (en) * 2017-10-17 2018-06-29 金华天乙机械制造有限公司 A kind of dust-extraction unit of smelting furnace

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Application publication date: 20221011