CN220878098U - Long bag low-pressure pulse ash removal and back suction integrated dust removal device for kiln in silicon industry - Google Patents

Long bag low-pressure pulse ash removal and back suction integrated dust removal device for kiln in silicon industry Download PDF

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Publication number
CN220878098U
CN220878098U CN202322556908.8U CN202322556908U CN220878098U CN 220878098 U CN220878098 U CN 220878098U CN 202322556908 U CN202322556908 U CN 202322556908U CN 220878098 U CN220878098 U CN 220878098U
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China
Prior art keywords
ash
bin
air
dust
back suction
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CN202322556908.8U
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刘然
任炜
李龙
韩万宁
郭拴平
赵雪
甘奇
高雷
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Inner Mongolia Jiayuan Environmental Protection Technology Co ltd
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Inner Mongolia Jiayuan Environmental Protection Technology Co ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

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Abstract

The utility model relates to a long-bag low-pressure pulse ash removal and back suction integrated dust removal device for a kiln in a silicon industry, which comprises a dust removal system, a pulse ash removal system, a back suction ash conveying mechanism, an air inlet and an air outlet; the pulse ash cleaning system comprises a clean gas bin; the gas purifying bin opening is provided with a gas purifying bin valve; the back suction ash conveying system comprises an air supplementing bin, and an air supplementing bin valve is arranged at the opening of the air supplementing bin. By arranging the clean air bin and the air supplementing bin, pulse ash removal and back suction ash conveying can be switched, so that the ash removal efficiency can be further increased and the ash removal time can be saved while off-line ash removal is solved; the ash conveying pipe is arranged, so that the silica fume and the ferrosilicon fume can be better collected, and the recycling is convenient.

Description

Long bag low-pressure pulse ash removal and back suction integrated dust removal device for kiln in silicon industry
Technical Field
The utility model relates to the technical field of ash removal and dust removal equipment, in particular to a long-bag low-pressure pulse ash removal and back suction integrated dust removal device for a kiln in the silicon industry.
Background
The dust-removing ash of electric furnace dust-removing and discharging dust-removing of industrial silicon and silicon iron furnace top has high economic value, and according to statistics, the silicon dust produced by industrial silicon production and the silicon iron dust produced by silicon iron production account for 30% of the output of the industrial silicon production, so that a large amount of dust-removing ash needs to be fully collected and recycled, and therefore, the dust-removing and recycling of the dust-removing ash needs to be a flue gas dust-removing system for refined recycling.
In the existing ash removal and dust removal process, positive pressure large cloth bag dust removal is required to be added with flue gas desulfurization and denitrification and dust detection, and the positive pressure cloth bag dust removal is an open dust removal system and does not have the two functions, so that the dust removal is eliminated; the negative pressure large cloth bag dust removal is improved by the positive pressure large cloth bag dust removal, and as the cloth bag filter materials are mostly glass fibers, the fatigue resistance is low, and the large cloth bag film covering technology is just developed, the filter wind speed of the dust remover is lower, so that the investment cost is increased, and the occupied area of equipment is large; the equipment resistance is about 2500Pa and 500Pa higher than 2000Pa of the low-pressure pulse dust collector, the total system fan power is high, and the daily running cost is high; the large cloth bag dust removing, ash removing and ash conveying integrated technology has the advantages that the large cloth bag dust removing has large filtering area, the ash removing fan is large in selection, and the power consumption is high; the off-line long-bag low-pressure pulse dust collector has short off-line time; when the dust is removed, the dust treatment effect on the silica powder and the like which are difficult to settle in off-line dust removing time and have lighter specific gravity is poor, and secondary dust in the box body is easy to cause to increase the load of the cloth bag.
Therefore, it is necessary to develop a structure that can integrate and optimize the ash removal and delivery integrated technology of large bag dust removal with the off-line long bag low pressure pulse dust remover to solve or improve the above problems.
Disclosure of utility model
The utility model aims to provide a long-bag low-pressure pulse ash-removing and back-sucking integrated dust-removing device for a kiln in the silicon industry, which solves the technical problems of full and rapid ash-removing and dust-removing of silicon ash and silicon iron ash in the existing silicon industry.
The technical problems solved by the utility model can be realized by adopting the following scheme: the long-bag low-pressure pulse ash-cleaning and back-sucking integrated dust-removing device for the kiln in the silicon industry comprises a dust-removing system, a pulse ash-cleaning system, a back-sucking ash-conveying mechanism, an air inlet and an air outlet;
the dust removing system comprises a guide plate, a plurality of unit long filter bags, an ash bucket and a dust removing chamber, dust-containing gas enters from an air inlet, part of dust is guided into the dust removing chamber through the guide plate, and the other part of dust is blocked on the outer surface of the long filter bags;
The pulse ash removal system comprises a clean gas bin arranged above the dust removal chamber, a plurality of clean gas bin openings are arranged on the clean gas bin, a clean gas bin valve matched with the clean gas bin openings is arranged above the clean gas bin openings, and the clean gas bin valve is connected with a first driving part capable of controlling the clean gas bin valve to open and close; a wind-dividing air duct communicated with the ash bucket is arranged below the air purifying bin, and a wind-dividing air duct control valve capable of controlling the wind-dividing air duct to open and close is arranged on the wind-dividing air duct; the device also comprises a pulse blowing pipe and a steam drum; driving the first driving part, opening a clean gas bin valve, and blowing dust into the long filter bag through the pulse blowing pipe and the steam drum;
The back suction ash conveying system comprises an air supplementing bin arranged above the clean air bin, and clean air is introduced into the air supplementing bin to supplement air for the back suction ash conveying system; the air supplementing bin is provided with a plurality of air supplementing bin openings, an air supplementing bin valve matched with the air supplementing bin openings is arranged above the air supplementing bin openings, the air supplementing bin valve is connected with a second driving part capable of controlling the opening and closing of the air supplementing bin valve, the lower end of the ash bucket is provided with a back suction control valve for controlling the air inlet of the ash bucket, and the back suction control valve is connected with a back suction fan; the back suction fan reversely sucks dust into the dust storage bin;
The air intake is located one side of clean room, and the opposite side that the air intake is relative is located to the air exit, and the guide plate slope sets up in the clean room inside.
Further, the outlets of the ash hoppers of the units are connected with ash conveying pipes, and one end of the outlet of each ash conveying pipe is provided with an ash conveying air supplementing valve.
Further, the outlets of the ash hoppers of the units are positioned at the bottom of the ash hoppers and are downwards connected with the ash conveying pipes.
Further, the highest end of the guide plate is higher than the air inlet, and the lowest end of the guide plate is lower than the air outlet.
Further, the first driving part, the second driving part and the third driving part are driving cylinders.
Further, the net gas bin openings are uniformly and equidistantly arranged on the net gas bin.
Further, the air supplementing bin openings are uniformly and equidistantly arranged on the air supplementing bin.
According to the long-bag low-pressure pulse ash-cleaning and back-suction integrated dust removal device for the silicon industrial kiln, the pulse ash-cleaning and back-suction ash-conveying can be switched by arranging the clean air bin and the air supplementing bin, so that the off-line ash-cleaning is solved, the ash-cleaning efficiency can be further increased, and the ash-cleaning time is saved; the ash conveying pipe is arranged, so that the silica fume and the ferrosilicon fume can be better collected, and the recycling is convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic side elevational view of the present utility model;
FIG. 3 is an internal schematic of the present utility model;
FIG. 4 is a top cross-sectional view of the present utility model;
FIG. 5 is a top plan view of the upper end of the present utility model;
FIG. 6 is a schematic diagram of the pulse ash removal state of the present utility model;
FIG. 7 is a schematic diagram of the ash back-suction condition of the present utility model.
Reference numerals: 1. a dust removal system; 11. a deflector; 12. a pulse blowing pipe; 13. a long filter bag; 14. an ash bucket; 15. a dust removal chamber; 2. a pulse ash removal system; 21. a clean gas bin; 22. a clean gas bin port; 23. a clean gas bin valve; 24. a first driving section; 25. an air dividing duct; 26. a wind-dividing air duct control valve; 3. a back suction ash conveying system; 31. a wind supplementing bin; 32. a wind supplementing bin port; 33. a wind supplementing bin valve; 34. a second driving section; 35. a suck-back control valve; 4. an air inlet; 5. an air outlet; 6. an ash conveying pipe; 61. an ash conveying and air supplementing valve.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
1-5, A long-bag low-pressure pulse ash removal and back suction integrated dust removal device for a kiln in a silicon industry comprises a dust removal system 1, a pulse ash removal system 2, a back suction ash conveying system 3, an air inlet 4 and an air outlet 5;
the dust removing system 1 comprises a guide plate 11, a plurality of unit long filter bags 13, an ash bucket 14 and a dust removing chamber 15, dust-containing gas enters from the air inlet 4, part of dust is guided into the dust removing chamber 15 through the guide plate 11, and the other part of dust is blocked on the outer surface of the long filter bags 13;
The pulse ash removal system 2 comprises a clean gas bin 21 arranged above the dust removal chamber 15, a plurality of clean gas bin openings 22 are arranged on the clean gas bin 21, a clean gas bin valve 23 matched with the clean gas bin openings 22 is arranged above the clean gas bin openings 22, and the clean gas bin valve 23 is connected with a first driving part 24 capable of controlling the clean gas bin valve 23 to open and close; a wind-dividing air duct 25 communicated with the ash bucket 14 is arranged below the air purifying bin 21, and a wind-dividing air duct control valve 26 capable of controlling the wind-dividing air duct 25 to open and close is arranged on the wind-dividing air duct 25; also comprises a pulse blowing pipe 12 and a steam drum; the first driving part 24 is driven, the clean gas bin valve 23 is opened, and dust is blown into the long filter bag 13 through the pulse blowing pipe 12 and the steam drum;
The back suction ash conveying system 3 comprises an air supplementing bin 31 arranged above the clean air bin 21, and clean air is introduced into the air supplementing bin 31 to supplement air for the back suction ash conveying system 3; the air supplementing bin 31 is provided with a plurality of air supplementing bin openings 32, an air supplementing bin valve 33 which is matched with the air supplementing bin openings 32 is arranged above the air supplementing bin openings 32, the air supplementing bin valve 33 is connected with a second driving part 34 which can control the opening and closing of the air supplementing bin valve 33, the lower end of the ash bucket 14 is provided with a back suction control valve 35 which controls the air inlet of the ash bucket 14, and the back suction control valve 35 is connected with a back suction fan; the back suction fan reversely sucks dust into the dust storage bin;
The air intake 4 is located one side of the dust chamber 15, and the air outlet 5 is located the opposite side of the dust chamber 15 relative to the air intake 4, and the deflector 11 is inclined in the dust chamber 15.
Further, the outlets of the ash hoppers 14 of the units are connected with ash conveying pipes 6, and an ash conveying air supplementing valve 61 is arranged at one end of each outlet of each ash conveying pipe 6. When the accumulated ash in the ash conveying pipe 6 needs to be collected, the ash conveying and air supplementing valve 61 is opened, so that the air pressure in the ash conveying pipe 6 and the back suction ash conveying system 3 can be supplemented. Wherein, the ash conveying pipe 6 is a long pipe structure with two openable ends and a cavity inside.
Further, the outlets of the ash hoppers 14 of each unit are positioned at the bottom of the ash hoppers 14 and are downwards connected with the ash conveying pipe 6. The bottom of the ash bucket 14 can be optionally provided with an air guide pipe connected with the ash conveying pipe 6, and the silica fume and the ferrosilicon fume entering the ash bucket 14 finally enter the ash conveying pipe 6, so that the silica fume and the ferrosilicon fume in the ash conveying pipe 6 can be cleaned and collected regularly for subsequent recycling.
Further, the highest end of the baffle 11 is higher than the air inlet 4, and the lowest end of the baffle 11 is lower than the air outlet 5.
Further, the first driving unit 24 and the second driving unit 34 are driving cylinders.
The first driving unit 24 and the second driving unit 34 may be driving devices such as a servo motor, and may control opening and closing of the corresponding valve plates;
further, the clean gas bin openings 22 are uniformly and equidistantly arranged on the clean gas bin 21.
Further, the air supply bin openings 32 are uniformly and equidistantly arranged on the air supply bin 31.
The two gas purifying bin openings 22 are arranged in parallel in a row, a plurality of rows of gas purifying bins 21 are uniformly and equidistantly arranged, external gas can enter the gas purifying bins 21 through the gas purifying bin openings 22, the dust removing chambers 15 are connected to the rear surfaces of the gas purifying bins 21, and whether the gas enters the gas purifying bins 21 is controlled by controlling the gas purifying bin valves 23.
Further, the air-dividing duct control valve 26 is a ventilation valve such as an electric shutter valve, and can control the air-dividing duct 25 to be connected or closed.
When the device works, as shown in fig. 6, the second driving part 34 is started downwards to drive the air supplementing bin valve 33 downwards to close the air supplementing bin opening 32; the suck-back control valve 35 is closed; starting the first driving part 24 upwards to drive the clean air bin valve 23 upwards, opening the clean air bin port 22 and opening the air separation duct control valve 26; at this time, the gas containing the silica fume or the ferrosilicon fume enters the dust chamber 15, a part of the silica fume or the ferrosilicon fume naturally subsides into the dust hopper 14 through the guide plate 11, and a part of the gas is adsorbed on the outer surface of the long filter bag 13. When the state is maintained for a period of time and more silica fume or ferrosilicon fume is accumulated on the outer surface of the long filter bag 13, as shown in fig. 7, the back suction ash conveying state is schematically shown in the utility model, the first driving part 24 is started downwards to drive the clean air bin valve 23 downwards, and the clean air bin opening 22 is closed; closing the air separation duct control valve 26; the second driving part 34 is started upwards to drive the air supplementing bin valve 33 upwards, the air supplementing bin port 32 is opened, the back suction control valve 35 is opened, and the back suction fan is opened; at this time, the vibrator on the long filter bag 13 shakes the silica fume or the ferrosilicon fume such as the dust hopper 14, and the blower sucks the silica fume or the ferrosilicon fume in the system into the dust hopper 14.
The silica fume or the ferrosilicon fume in the ash hopper 14 can enter the ash conveying pipe 6, the ash conveying air compensating valve 61 is opened periodically, and the silica fume or the ferrosilicon fume collected in the ash conveying pipe 6 is collected.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (7)

1. The long-bag low-pressure pulse ash-cleaning and back-sucking integrated dust-removing device for the kiln in the silicon industry is characterized by comprising a dust-removing system (1), a pulse ash-cleaning system (2), a back-sucking ash-conveying system (3), an air inlet (4) and an air outlet (5);
The dust removing system (1) comprises a guide plate (11), a plurality of unit long filter bags (13), an ash bucket (14) and a dust removing chamber (15), dust-containing gas enters from the air inlet (4), part of dust is guided into the dust removing chamber (15) through the guide plate (11), and the other part of dust is blocked on the outer surface of the long filter bags (13);
The pulse ash removal system (2) comprises a clean gas bin (21) arranged above the dust removal chamber (15), a plurality of clean gas bin openings (22) are formed in the clean gas bin (21), a clean gas bin valve (23) matched with the clean gas bin openings (22) is arranged above the clean gas bin openings (22), and the clean gas bin valve (23) is connected with a first driving part (24) capable of controlling the clean gas bin valve (23) to open and close; a wind-dividing air duct (25) communicated with the ash bucket (14) is arranged below the air purifying bin (21), and a wind-dividing air duct control valve (26) capable of controlling the wind-dividing air duct (25) to open and close is arranged on the wind-dividing air duct (25); the device also comprises a pulse blowing pipe (12) and a steam drum; the first driving part (24) is driven, the clean gas bin valve (23) is opened, and dust is blown into the long filter bag (13) through the pulse blowing pipe (12) and the steam drum;
The back suction ash conveying system (3) comprises an air supplementing bin (31) arranged above the clean air bin (21), and clean air is introduced into the air supplementing bin (31) to supplement air for the back suction ash conveying system (3); a plurality of air supplementing bin openings (32) are formed in the air supplementing bin (31), an air supplementing bin valve (33) which is matched with the air supplementing bin openings (32) is arranged above the air supplementing bin openings (32), the air supplementing bin valve (33) is connected with a second driving part (34) which can control the opening and closing of the air supplementing bin valve (33), a back suction control valve (35) which controls the air inlet of the ash bucket (14) is arranged at the lower end of the ash bucket (14), and the back suction control valve (35) is connected with a back suction fan; the back suction fan reversely sucks dust into the dust storage bin;
The air inlet (4) is arranged on one side of the dust removing chamber (15), the air outlet (5) is arranged on the other side of the dust removing chamber (15) opposite to the air inlet (4), and the guide plate (11) is obliquely arranged inside the dust removing chamber (15).
2. The long-bag low-pressure pulse ash-cleaning and back-suction integrated dust collector for the silicon industrial furnace according to claim 1, wherein the outlet of each unit ash bucket (14) is connected with an ash conveying pipe (6), and an ash conveying air-supplementing valve (61) is arranged at one end of the outlet of the ash conveying pipe (6).
3. The long-bag low-pressure pulse ash removal and back suction integrated dust removal device for the silicon industrial furnace according to claim 2, wherein the outlets of the ash hoppers (14) of the units are positioned at the bottom of the ash hoppers (14) and are downwards connected with an ash conveying pipe (6).
4. The long-bag low-pressure pulse ash removal and back suction integrated dust removal device for the silicon industrial furnace according to claim 1, wherein the highest end of the guide plate (11) is higher than the air inlet (4), and the lowest end of the guide plate (11) is lower than the air outlet (5).
5. The long-bag low-pressure pulse ash removal and back suction integrated dust removal device for the silicon industrial furnace according to claim 1, wherein the first driving part (24) and the second driving part (34) are driving cylinders.
6. The long-bag low-pressure pulse ash-cleaning and back-suction integrated dust removal device for the silicon industrial furnace according to claim 1, wherein the clean gas bin openings (22) are uniformly and equidistantly arranged on the clean gas bin (21).
7. The long-bag low-pressure pulse ash removal and back suction integrated dust removal device for the silicon industrial furnace according to claim 1, wherein the air supplementing bin openings (32) are uniformly and equidistantly arranged on the air supplementing bin (31).
CN202322556908.8U 2023-09-20 2023-09-20 Long bag low-pressure pulse ash removal and back suction integrated dust removal device for kiln in silicon industry Active CN220878098U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322556908.8U CN220878098U (en) 2023-09-20 2023-09-20 Long bag low-pressure pulse ash removal and back suction integrated dust removal device for kiln in silicon industry

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322556908.8U CN220878098U (en) 2023-09-20 2023-09-20 Long bag low-pressure pulse ash removal and back suction integrated dust removal device for kiln in silicon industry

Publications (1)

Publication Number Publication Date
CN220878098U true CN220878098U (en) 2024-05-03

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ID=90878913

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322556908.8U Active CN220878098U (en) 2023-09-20 2023-09-20 Long bag low-pressure pulse ash removal and back suction integrated dust removal device for kiln in silicon industry

Country Status (1)

Country Link
CN (1) CN220878098U (en)

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