CN115581975A - Dust remover is retrieved with tiny particle to fumed silica production - Google Patents
Dust remover is retrieved with tiny particle to fumed silica production Download PDFInfo
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- CN115581975A CN115581975A CN202211571486.5A CN202211571486A CN115581975A CN 115581975 A CN115581975 A CN 115581975A CN 202211571486 A CN202211571486 A CN 202211571486A CN 115581975 A CN115581975 A CN 115581975A
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- 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
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- 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
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- 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
- B01D46/4263—Means for active heating or cooling
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- 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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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to the technical field of chemical production, and discloses a small particle recovery dust remover for fumed silica production, which comprises a lower fixing plate, wherein an air supply pipe is fixedly arranged on the surface of the lower fixing plate, an air pipe positioned in the lower fixing plate is fixedly arranged outside one side of the air supply pipe, and an air pump is fixedly arranged at the bottom end of the air pipe. According to the filter bag, the recycling circular rail is arranged, so that particles on the inner surface and the outer surface of the filter bag body can be fully recycled, the recycling efficiency of the particles is effectively improved, the surface of the filter bag body is always kept in a high-temperature dry state through the air pump, the recycling work of the particles is assisted to be promoted, the recycling circular rail and the spring are arranged, when the filter bag stops returning, the surface of the filter bag body is driven to swing through the vibration of the spring, the effect of further improving the recycling efficiency of the particles is achieved, and the problem that the particles are slightly vibrated and shaken off on the surface of the filter bag body and stubborn particles cannot be completely shaken off due to the fact that the existing filter bag only depends on the flow of air flow is solved.
Description
Technical Field
The invention relates to the technical field of chemical production, in particular to a small particle recovery dust remover for fumed silica production.
Background
Fumed silica is also called fumed silica, and is nano white powder generated by high-temperature hydrolysis of silicon halide in oxyhydrogen flame. The production of gas-phase silicon dioxide is mainly characterized by that the silicon tetrachloride is gasified, then mixed with hydrogen gas and air, and combusted in hydrolysis furnace, and hydrolyzed at high temp. to obtain gas-phase silicon dioxide primary particles, then the gas-solid mixture is cooled, and after the gas-solid mixture is aggregated, the SiO is separated out 2 And deacidifying the powder, and finally packaging to finish the product production. The existing bag type dust collector is a dry dust filtering device, and utilizes a filter bag made of woven filter cloth or non-woven felt to filter gas containing fumed silica, wherein the gas containing the fumed silica is filtered on the surface of the filter bag, and the gas is discharged outwards through the filter bag, so that gas-solid separation is realized, and the particle recovery of the fumed silica is realized.
When the existing bag type dust collector is used, a pulser is generally adopted for carrying out back flushing, particles accumulated on the surface of a filter bag are blown off, but pulse airflow is generally located inside the filter bag for blowing, and particles on the outer surface of the filter bag are shaken off by means of the swinging of the cloth bag, and then the dropping effect can be lower than the direct blowing effect inside the filter bag, most of the particles are attached to the outer surface of the filter bag in the filtering process, so that the existing particle recovery efficiency is not high, in addition, when the back flushing is carried out, the temperature of the dust collector is extremely easy to drop, then steam in the system is extremely easy to form condensate, and further forms hydrochloric acid with hydrogen chloride, so that equipment is corroded, the dust collector is blocked, and the problem that the production cannot be carried out normally is caused.
Disclosure of Invention
Aiming at the defects of the existing dust remover in the use process in the background technology, the invention provides the small particle recovery dust remover for fumed silica production, which has the advantages of automatically blowing and scraping particles on the surface of a filter bag, improving the particle recovery rate, keeping the dryness of equipment and avoiding the influence of corrosion blockage caused by low temperature, and solves the technical problems in the background technology.
The invention provides the following technical scheme: the utility model provides a dust remover is retrieved with tiny particle in fumed silica production, includes the bottom plate, embedded fixed the being provided with the blast pipe in the bottom plate, embedded fixed being provided with the breather pipe in the bottom plate, and the interval sets up between breather pipe and the blast pipe, the bottom fixed mounting of breather pipe has the air pump, fixed mounting has the sieve of ventilating in the top inside wall of breather pipe, the top fixed mounting of breather pipe has the filter bag body, and the filter bag position is in the top surface of bottom plate, the fixed mounting of the internal wall of surface of filter bag has the recovery circular rail, fixed mounting has the spring in the inner chamber of recovery circular rail, the top fixed mounting of the filter bag body has an upper fixed plate, embedded fixed being provided with blast pipe and circulating pipe in the upper fixed plate, interval sets up between blast pipe and the circulating pipe, and the internal intercommunication of filter bag, the middle part fixed mounting of circulating pipe has the force (forcing) pump, the one end inner wall fixed mounting of circulating pipe has the solenoid valve.
Preferably, the air pump, the pressure pump and the electromagnetic valve are electrically connected in parallel with the existing control system through leads, the exhaust pipe is in a valve closing state when the air pump and the pressure pump are started to operate and the electromagnetic valve opens, otherwise, the air pump and the pressure pump are in a stalling state when the valve of the exhaust pipe is opened, the electromagnetic valve is in a valve closing state, and the air pumped into the filter bag body by the air pump is high-temperature air.
Preferably, the size of the vent sieve plate is matched with the size of the top end opening cavity of the vent pipe, and the vent sieve plate can allow gas to pass through but not allow small fumed silica particles to pass through.
Preferably, the overall shape of the recovery circular rail is spiral, the cross section of the recovery circular rail is trapezoidal, one side wall surface of the recovery circular rail facing the inner side wall of the filter bag body is convex outwards, the convex shape is fixed, one side wall surface of the recovery circular rail facing outwards away from the filter bag body is not convex outwards, the side wall surface has elasticity, an inner cavity of the recovery circular rail is filled with gas which is easy to expand when heated, and the surface of the recovery circular rail has thermal conductivity.
Preferably, the circulating pipe is C-shaped, and openings at two ends of the circulating pipe are respectively communicated with the top ends of the filter bag bodies and the top end of a gap between every two adjacent filter bag bodies.
The invention has the following beneficial effects:
1. the invention utilizes the shape track guide of the recovery ring track to transversely blow and scrape fumed silica particles attached to the surface of the filter bag body when airflow flows in a gap between the tracks of the recovery ring track, so that the particles are separated from the surface of the filter bag body, meanwhile, the particles are driven by airflow flow force to spiral upwards along with the airflow, and because the airflow has high temperature, the air inside the recovery ring track is heated and expanded through heat conduction, so that the outer side wall of the recovery ring track deforms and expands outwards, and further, when the airflow in the inner cavity of the filter bag body spirally upwards passes through the inner cavity of the circulating pipe and is pressurized by a pressure pump and then pumped into the gap between every two adjacent filter bag bodies, the airflow can be guided by the external spiral shape track formed by the recovery ring track to flow downwards spirally around the outer surface of the filter bag body, and in the flow process, the airflow also blows and scrapes the particles on the outer surface of the filter bag body, therefore, the particles on the inner surface and the outer surface of the filter bag body can be fully recovered, and meanwhile, the particles can not be easily diffused when blown, and can be effectively prevented from flying and fall down by the gravity in the traditional method, and the particle recovery efficiency can be effectively improved.
2. According to the invention, the air pump is arranged, high-temperature gas is continuously fed into the inner cavity of the filter bag body by the air pump, so that the high-temperature gas continuously and circularly flows through the inner surface and the outer surface of the filter bag body, the surface of the filter bag body is always kept in a high-temperature dry state, the problem that the surface temperature of the filter bag body is reduced during recovery, part of steam contained in equipment is condensed and further forms hydrochloric acid with hydrogen chloride to corrode the equipment and cause dewing and blocking on the surface of the filter bag body is solved, meanwhile, the high-temperature gas enables the structure of the recovery circular track to thermally expand, and further, during recovery, the recovery circular track forms a spiral track on the outer surface of the filter bag body, so that the recovery work of particles is assisted, and the high-temperature gas circularly flows, so that the inner part and the outer part of the filter bag body can be in a high-temperature dry environment, and adverse effects caused by a low-temperature humid environment are avoided all the time.
3. According to the invention, by arranging the recovery ring rail and the spring, when recovery is stopped, the temperature at the recovery ring rail is gradually reduced, the air pressure in the cavity of the recovery ring rail is reduced due to temperature reduction, the spring starts to rebound, when the spring rebounds, the spring can drive one side wall surface of the recovery ring rail to generate reciprocating oscillation, so that the surfaces of the filter bag bodies at the upper end and the lower end of the recovery ring rail are driven to oscillate, and the filter bag bodies have stronger rebound force due to the spring and larger oscillation force, so that particles which cannot be blown by air flow on the surface of the filter bag bodies can be automatically shaken off under the influence of oscillation, therefore, the effect of further improving the particle recovery efficiency can be achieved, and the problem that the particles cannot be shaken off completely because the surfaces of the filter bag bodies generate slight vibration due to the flow of the air flow at present can be avoided.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional front plan view of the structure of the present invention;
FIG. 3 is an enlarged view of a portion of the structure A shown in FIG. 2 according to the present invention.
In the figure: 1. a lower fixing plate; 2. an air feed pipe; 3. a breather pipe; 4. an air pump; 5. a ventilating sieve plate; 6. a filter bag body; 7. recovering the circular rail; 8. a spring; 9. an upper fixing plate; 10. an exhaust pipe; 11. a circulation pipe; 12. a pressure pump; 13. an electromagnetic valve.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-3, a dust collector for recycling small particles for fumed silica production comprises a lower fixing plate 1, an air supply pipe 2 is fixedly embedded in the lower fixing plate 1, an air pipe 3 is fixedly embedded in the lower fixing plate 1, an air pump 4 is fixedly arranged between the air pipe 3 and the air supply pipe 2, an air screen plate 5 is fixedly arranged in the inner side wall of the top end of the air pipe 3, a filter bag body 6 is fixedly arranged above the top end of the air pipe 3, the filter bag body 6 is positioned on the top end surface of the lower fixing plate 1, a recycling ring rail 7 is fixedly arranged on the inner wall of the surface of the filter bag body 6, a spring 8 is fixedly arranged in the inner cavity of the recycling ring rail 7, when the particulate matter air flow is recycled for a certain period of time, the air pressure in the inner cavity of the recycling ring rail 7 is reduced when the air flow is not filled in the filter bag, namely, the particulate matter stops recycling, when the particulate matter is about to enter the next air supply purification and filtration, the temperature at the recycling ring rail 7 is gradually reduced because the air flow is reduced when the air flow is expanded, the spring 8 is expanded, the air flow is further reduced, when the recycling ring rail is driven by the spring 8, the recycling vibration effect of the recycling ring rail is increased, the vibration of the recycling ring rail 6, the recycling ring rail is increased, the vibration of the spring 8, the recycling ring rail is increased, and the vibration of the filter bag body 6, the recycling ring rail 7 is increased, the problem that particles cannot shake off stubborn particles completely due to slight vibration generated on the surface of the filter bag body 6 caused by the flowing of air flow at present is avoided, an upper fixing plate 9 is fixedly installed at the top end of the filter bag body 6, an exhaust pipe 10 and a circulating pipe 11 are fixedly arranged in the upper fixing plate 9 in an embedded mode, the exhaust pipe 10 and the circulating pipe 11 are arranged at intervals, the exhaust pipe 10 is communicated with the interior of the filter bag body 6, a pressure pump 12 is fixedly installed in the middle of the circulating pipe 11, and an electromagnetic valve 13 is fixedly installed on the inner wall of one end of the circulating pipe 11.
Referring to fig. 1-2, the air pump 4, the pressure pump 12 and the electromagnetic valve 13 are electrically connected in parallel with the existing control system through wires, when the air pump 4 and the pressure pump 12 are started and operated and the electromagnetic valve 13 opens the valve, the exhaust pipe 10 is in a valve closed state, otherwise, when the valve of the exhaust pipe 10 is opened, the air pump 4 and the pressure pump 12 are in a stop state, the electromagnetic valve 13 is in a valve closed state, the gas pumped by the air pump 4 to the filter bag body 6 is a high-temperature gas, by arranging the air pump 4, the high-temperature gas is continuously pumped into the filter bag body 6 through the vent pipe 3, the high-temperature gas continuously circulates through the inner and outer surfaces of the filter bag body 6, so that the surface of the filter bag body 6 is always kept in a high-temperature dry state, thereby preventing the surface temperature of the filter bag body 6 from dropping during recycling, further condensing part of water vapor contained in the device, further forming hydrochloric acid with hydrogen chloride, causing corrosion to the device, and causing the problem of blocking and dewing on the surface of the filter bag body 6, and meanwhile, the high-temperature gas can promote the spiral track 7 to generate thermal expansion during recycling, thereby facilitating the spiral track of the outer surface of the filter bag body 6, and ensuring the wet environment of the wet filter bag body 6.
Referring to fig. 1-2, the size of the vent screen plate 5 is matched with the size of the top opening cavity of the vent pipe 3, and the vent screen plate 5 can allow gas to pass through but not allow fumed silica small particles to pass through.
Referring to fig. 1-3, wherein the overall shape of the recycling circular rail 7 is spiral, the cross section of the recycling circular rail 7 is trapezoidal, one side wall surface of the recycling circular rail 7 facing the inner side wall of the filter bag body 6 is convex and fixed, one side wall surface of the recycling circular rail 7 facing away from the filter bag body 6 is not convex, and the side wall surface has elasticity, the inner cavity of the recycling circular rail 7 is filled with gas which is easy to expand when heated, the surface of the recycling circular rail 7 has thermal conductivity, by providing the recycling circular rail 7, when the fumed silica small particles need to be recycled, pure air is pumped by the air pump 4 and converted into strong air flow which is continuously flushed into the inner cavity of the filter bag body 6, when the air is flushed into the inner cavity of the filter bag body 6, the air flow flowing to the inner side wall surface of the filter bag body 6 is blocked and guided by the shape track of the recycling circular rail 7, and then continuously spirally flows along the shape track of the recovery circular rail 7, when the air current is guided by the shape track of the recovery circular rail 7 and flows in the gap between the tracks of the recovery circular rail 7, the air current transversely blows and scrapes the fumed silica particles attached on the surface of the filter bag body 6, so that the particles are separated from the surface of the filter bag body 6, meanwhile, because the air current continuously rushes in, and further under the driving of the air current flow force, the particles tightly spiral upwards along with the air current, and cannot widely scatter outwards, and in addition, because the air current has high temperature, when the air current swirls around the inner side wall of the filter bag body 6, the air temperature conducts heat energy to the inner cavity of the recovery circular rail 7 through the surface of the recovery circular rail 7, so that the air inside the recovery circular rail 7 is heated and expanded, the shape of the convex inner side wall of the recovery circular rail 7 is fixed, the outer side wall has elasticity, and further, when the air inside the recovery circular rail 7 is heated and expanded, the outer side wall of the recycling circular rail 7 deforms and expands outwards, and then the outer surface of the filter bag body 6 can gradually form a circle of external thread structure, namely the outer side wall of the recycling circular rail 7 protrudes outwards to form a spiral-shaped track, when the air flow in the inner cavity of the filter bag body 6 spirals upwards and passes through the inner cavity of the circulating pipe 11, the air flow is pressurized by the pressure pump 12 and then pumped into a gap between every two adjacent filter bag bodies 6, when the pumped air flow flows through the outer surface of the filter bag body 6, the air flow can be influenced by the obstruction and the guide of the newly formed external spiral-shaped track of the recycling circular rail 7, the air flow spirally flows downwards around the outer surface of the filter bag body 6, and then in the flowing process, the particles on the outer surface of the filter bag body 6 are blown and scraped, so that the particles on the outer surface of the filter bag body 6 can be completely separated and fully recycled, meanwhile, due to the effect of the rotating air flow, when the particles are blown up, the particles cannot be easily diffused outwards, and further, the particles can be effectively prevented from scattering, and the problem that the particles are blown directly to blow into the inner cavity of the filter bag body 6 is solved, and the problem that the particles can be effectively recovered by the conventional straight air flow and the problem that the particles can be carried downwards in a natural and the recycling efficiency is improved.
Referring to fig. 1-2, the circulation tube 11 is C-shaped, and openings at two ends of the circulation tube 11 are respectively communicated with the top ends of the filter bag bodies 6 and the top end of the gap between every two adjacent filter bag bodies 6.
The using method of the invention has the following working principle:
when the fumed silica small particles are recovered, the existing control system is used for respectively controlling the existing gas supply equipment and the exhaust pipe 10, so that the gas supply equipment starts to extract gas to be recovered and filtered, the exhaust pipe 10 opens a valve, the gas containing the particulate matters to be filtered and recovered is introduced into the air feed pipe 2 through the existing gas supply equipment, then the gas is fed into gaps among the filter bag bodies 6 through the air feed pipe 2, the gas naturally flows, when the gas flows to the surfaces of the filter bag bodies 6, the small particles can be filtered when passing through the surfaces of the filter bag bodies 6 due to the textile characteristics of belts contained in the filter cloth of the filter bag bodies 6, so that the small particles are separated from the gas, a gas-solid separation effect is formed, the screened small particles are partially attached to the outer surfaces of the filter bag bodies 6 and partially attached to the inner surfaces of the filter bag bodies 6, and the filtered gas is exhausted outwards through the exhaust pipe 10.
After filtering for a period of time, at this time, a certain amount of fumed silica particles have accumulated on the surface of the filter bag body 6, the existing air supply equipment is controlled to stop supplying air through the existing control system, meanwhile, the valve of the exhaust pipe 10 is closed, the control solenoid valve 13 opens the valve, and the air pump 4 and the pressure pump 12 are respectively energized to start operating the air pump 4 and the pressure pump 12, the internal structures of the air pump 4 and the pressure pump 12 are the same as those of the existing air pump and pressure pump, the air which is pure and has high temperature outside is extracted through the air pump 4, for the air with high temperature, the air extracted by the air pump 4 can be heated through the heating equipment inside the existing dust remover equipment, when the air pump 4 extracts the air into the air, the air is converted into strong airflow through the operation of the internal structure of the air pump, and the air passes through the vent pipe 3 and the vent sieve plate 5, when the gas is flushed into the inner cavity of the filter bag body 6, the gas flow close to the inner side wall surface of the filter bag body 6 is guided by the shape track of the recovery circular track 7 on the inner side wall of the filter bag body 6, so that the gas flow continuously follows the shape track of the recovery circular track 7 and continuously spirally flows in the gap between the tracks of the recovery circular track 7, the flowing gas flow transversely blows and scrapes fumed silica particles attached to the surface of the filter bag body 6, the particles are separated from the surface of the filter bag body 6, meanwhile, the particles are driven by the flow force of the gas flow and spirally upwards along with the gas flow until the gas flow reaches the electromagnetic valve 13, the gas flow totally flows into the inner cavity of the circulating pipe 11 through the electromagnetic valve 13, when the gas flow reaches the pressure pump 12, the gas flow is accelerated by pressurizing the gas flow, so that the gas flow can keep high speed, and after being pressurized by the pressure pump 12, when the air current carrying particulate matters is pumped into the gap between each filter bag body 6, and is sprayed downwards, at the moment, because the air current has high temperature, and when the air current carries out rotational flow around the inner side wall of each filter bag body 6, the heat energy contained in the air current is conducted to the inner cavity of the recovery ring rail 7 through the surface of the recovery ring rail 7, so that the internal gas of the recovery ring rail 7 is heated and expanded, but the shape of the inner side wall protruding from the recovery ring rail 7 is fixed, and the outer side wall has elasticity, and further when the internal gas of the recovery ring rail 7 is heated and expanded, the outer side wall of the recovery ring rail 7 deforms and expands outwards, and a circle of external thread structure is formed gradually, when the pumped air current flows through the outer surface of the filter bag bodies 6, the air current is again influenced by the guiding of the external spiral shape track of the recovery ring rail 7, and flows downwards spirally around the outer surface of the filter bag bodies 6, and during the flowing process, the air current continuously blows and scrapes the particulate matters on the outer surface of the filter bag bodies 6, therefore, the internal and external surface of the filter bag bodies 6 are fully recovered by the spiral air current, and meanwhile, when the particulate matters are blown, the particulate matters cannot be easily diffused outwards, and further, and the particulate matters can be effectively prevented from flying.
When the air current flows to the bottom end of the filter bag body 6 in a spiral mode, holes are formed in the surface of the lower fixing plate 1, the air current carries particles to flow to an ash bucket below, so that the particles are recovered, after the particles are recovered for a period of time, the air pump 4 and the pressure pump 12 are controlled to stop air supply and pressurization through the existing control system, meanwhile, the electromagnetic valve 13 is also enabled to close a valve, at the moment, high-temperature rotational flow is stopped, the temperature at the position of the recovery circular rail 7 is gradually reduced due to the fact that the air pressure of the air in the inner cavity of the recovery circular rail 7 is gradually reduced, at the moment, the air pressure borne by the spring 8 is reduced, the spring 8 starts to rebound, when the spring 8 rebounds, the spring 8 can drive one side wall face of the recovery circular rail 7 to swing in a reciprocating mode, the surfaces of the filter bag bodies 6 at the upper end and the lower end of the recovery circular rail 7 are driven to swing in a vibrating mode, the rebound force of the spring is strong, the vibration force of the filter bag bodies 6 is larger, and particles which cannot be blown by the air current on the surface of the filter bag bodies 6 can automatically shake off.
After the spring 8 stops oscillating and the initial state is recovered, the existing gas supply equipment is controlled through the existing control system, and the exhaust pipe 10 is opened to start a new round of filtration and recovery of the fumed silica.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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 (5)
1. The utility model provides a dust remover is retrieved with tiny particle to fumed silica production, includes bottom plate (1), its characterized in that: the utility model discloses a filter bag, including lower fixed plate (1), embedded fixed blast pipe (2) that is provided with in lower fixed plate (1), embedded fixed breather pipe (3) that is provided with in lower fixed plate (1), and interval setting between breather pipe (3) and blast pipe (2), the bottom fixed mounting of breather pipe (3) has air pump (4), fixed mounting has ventilation screen (5) in the top inside wall of breather pipe (3), the top fixed mounting of breather pipe (3) has filter bag body (6), and filter bag body (6) are located the top surface of lower fixed plate (1), the fixed mounting of the surperficial inner wall of filter bag body (6) has recovery circular track (7), fixed mounting has spring (8) in the inner chamber of recovery circular track (7), the top fixed mounting of filter bag body (6) has upper fixed plate (9), embedded fixed blast pipe (10) and circulating pipe (11) in upper fixed plate (9), interval setting between blast pipe (10) and circulating pipe (11), blast pipe (10) and filter bag body (6) are inside to be linked together, the middle part fixed mounting of circulating pipe (11) has booster pump (12), the solenoid valve (13) is installed with the internal fixed mounting of circulating pipe (11).
2. The small particle recovery dust collector for fumed silica according to claim 1, wherein: air pump (4), force (forcing) pump (12) and solenoid valve (13) all connect in parallel through wire and control system electrical property, when air pump (4) and force (forcing) pump (12) start-up operation and solenoid valve (13) open valve, blast pipe (10) are in the valve closure state, otherwise, when blast pipe (10) valve was opened, air pump (4) and force (forcing) pump (12) were in the stall state, and solenoid valve (13) are in the valve closure state, the gas that air pump (4) were gone into to filter bag body (6) pump is high temperature gas.
3. The small particle recovery dust collector for fumed silica according to claim 1, characterized in that: the shape and size of the ventilation sieve plate (5) are matched with the shape and size of the top end opening inner cavity of the ventilation pipe (3), and the ventilation sieve plate (5) can allow gas to pass through but not allow small fumed silica particles to pass through.
4. The small particle recovery dust collector for fumed silica according to claim 1, characterized in that: the whole shape of retrieving circular rail (7) is the spiral, the cross sectional shape of retrieving circular rail (7) is trapezoidal, retrieve circular rail (7) and be outside protruding form towards a lateral wall face of filter bag body (6) inside wall, and bellied shape is fixed, retrieve circular rail (7) and keep away from filter bag body (6) outside lateral wall face and outwards not protruding, and this lateral wall face has elasticity, the inner chamber of retrieving circular rail (7) is full of the gas of being heated easy inflation, the surface of retrieving circular rail (7) has the heat conductivity.
5. The small particle recovery dust collector for fumed silica according to claim 1, wherein: the circulating pipe (11) is C-shaped, and openings at two ends of the circulating pipe (11) are respectively communicated with the top ends of the filter bag bodies (6) and the top ends of the gaps between every two adjacent filter bag bodies (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211571486.5A CN115581975B (en) | 2022-12-08 | 2022-12-08 | Dust remover is retrieved with tiny particle to fumed silica production |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211571486.5A CN115581975B (en) | 2022-12-08 | 2022-12-08 | Dust remover is retrieved with tiny particle to fumed silica production |
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| CN115581975A true CN115581975A (en) | 2023-01-10 |
| CN115581975B CN115581975B (en) | 2023-03-10 |
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|---|---|---|---|---|
| CN102580416A (en) * | 2012-03-20 | 2012-07-18 | 南京大吉铁塔制造有限公司 | Method for preventing filter bag of bag type collector from blockage |
| CN106492562A (en) * | 2016-12-16 | 2017-03-15 | 常州市康安环保设备有限公司 | A kind of pulse backblowing deashing device |
| CN208049602U (en) * | 2018-03-06 | 2018-11-06 | 西安热工研究院有限公司 | A kind of two-way blowing type high temperature compressed air back-blowing device |
| CN208990423U (en) * | 2018-10-26 | 2019-06-18 | 河南丰韬工程材料有限公司 | The pulse dust collector of material production recycling raw material |
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| CN115581975B (en) | 2023-03-10 |
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