CN111841223A - Lead smelting tail gas treatment method - Google Patents
Lead smelting tail gas treatment method Download PDFInfo
- Publication number
- CN111841223A CN111841223A CN202010717459.9A CN202010717459A CN111841223A CN 111841223 A CN111841223 A CN 111841223A CN 202010717459 A CN202010717459 A CN 202010717459A CN 111841223 A CN111841223 A CN 111841223A
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- Prior art keywords
- tail gas
- box body
- gas treatment
- dust
- pressure plate
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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
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
-
- 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
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention relates to the technical field of tail gas treatment, in particular to a lead smelting tail gas treatment method, wherein a tail gas treatment device used in the method comprises a box body, wherein a gas inlet pipe is fixedly arranged on the left side surface of the box body, a gas outlet pipe is fixedly arranged on the right side surface of the box body, and a round hole is formed in the lower surface of the box body; the vibration mechanism comprises a sealing cover, a first buffer rod, an upper pressing plate, a vibration motor, a second buffer rod, a lower pressing plate, a through hole, a limiting baffle and a rectangular frame; the ash discharging mechanism comprises a cylinder, a discharge hole, a motor, a rotating shaft, a scraper blade, a circular ring and a scraper strip. According to the invention, the vibration mechanism vibrates the filtering mechanism in the rectangular frame to shake off dust adhered to each filtering plate, the filtering plates do not need to be taken out and cleaned, the service time of the filtering plates is prolonged, accumulated dust is conveniently discharged through the dust discharging mechanism, the dust accumulation is prevented from blocking the discharging port, and the use is more convenient.
Description
Technical Field
The invention relates to the technical field of tail gas treatment, in particular to a lead smelting tail gas treatment method.
Background
Lead is a weak metal with high softness and ductility, is toxic and also is a heavy metal, is widely applied, and when the lead is applied to other fields, the lead needs to be smelted, generates more gas in smelting, has toxicity, and needs a professional tail gas treatment device to be filtered and discharged.
In the prior art, the tail gas treatment device is required to be stained with a large amount of dust when in use, so that the filtering effect is poor, various filter plates are required to be taken out frequently for dust removal, a large amount of cleaning time is required to be consumed, and the tail gas treatment device is inconvenient to use; among the prior art, the filterable in-process of tail gas processing apparatus, long-time filterable dust is piled up in exhaust treatment device bottom, is difficult to clear up the discharge, can cause row's ash hole to block up, and is inconvenient to use.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a lead smelting tail gas treatment method, which has the advantages of shaking off dust adhered to each filter plate, avoiding taking out and cleaning the filter plate, prolonging the service time of the filter plate, facilitating the discharge of accumulated dust, avoiding the blockage of a discharge outlet due to the accumulation of dust and the like, and solves the problems that the existing tail gas treatment device needs to frequently take out various filter plates for dust removal, consumes a large amount of cleaning time, reduces the working efficiency, and the filtered dust is accumulated at the bottom of the waste gas treatment device and is difficult to clean and discharge.
In order to realize the purposes of shaking off the dust adhered to each filter plate, taking out and cleaning the filter plate, prolonging the service time of the filter plate, facilitating the discharge of the accumulated dust and avoiding the blockage of the discharge port due to the accumulation of the dust, the invention provides the following technical scheme: a lead smelting tail gas treatment method comprises the following steps:
s1: leading the Weiqi discharged from the lead smelting furnace into a heat exchanger, thereby cooling the tail gas, and reducing the temperature of the tail gas to 400-500 ℃;
s2: introducing the tail gas in the step S1 into a cyclone dust collector for dust removal, thereby removing larger dust and particulate matters in the tail gas and pretreating the tail gas;
s3: leading the tail gas treated in the step S2 into a tail gas treatment device, filtering and dedusting through a plurality of filter screen plates in a rectangular frame in the tail gas treatment device, reducing the dust content in the tail gas to be below 90%, and sending the tail gas to a downward moving process for continuous treatment after the treatment is finished;
s4: after the tail gas is introduced, a vibration motor in the tail gas treatment device is started to drive an upper pressure plate to vibrate, and then the rectangular frame is driven to vibrate through the upper pressure plate, so that dust adhered to a filter screen plate in the rectangular frame falls into a conical flow guide pipe, and the filter screen plate can be automatically cleaned without being taken out;
the tail gas treatment device used in the S3-S4 comprises a box body, wherein a gas inlet pipe is fixedly arranged on the left side surface of the box body, a gas outlet pipe is fixedly arranged on the right side surface of the box body, and a round hole is formed in the lower surface of the box body; the vibration mechanism comprises a sealing cover, a first buffer rod, an upper pressing plate, a vibration motor, a second buffer rod, a lower pressing plate, through holes, a limiting baffle and a rectangular frame, wherein the sealing cover is installed on the upper surface of the box body; arrange grey mechanism, arrange grey mechanism and include drum, bin outlet, motor, pivot, scraper blade, ring and scrape the strip, drum fixed mounting is in the corresponding box lower surface of round hole, the bin outlet has been seted up on the drum lower lateral wall left side, fixed mounting has the motor under the drum, fixed mounting has the pivot on the output shaft of motor, and the pivot inserts and locates in the box, there is the ring through scraper blade fixed mounting in the pivot, the left side inner wall of drum and the corresponding fixed position of bin outlet have the strip of scraping, and the lower surface of scraping the strip laminates with the scraper blade upper surface each other.
Preferably, the lower surface of the box body is rectangular and is fixedly provided with supporting legs.
Preferably, the lower surface of the sealing cover is fixedly provided with an extension frame, and the extension frame is fixedly connected with the box body through a locking bolt.
Preferably, the conical guide pipe is fixedly arranged on the lower surface of the lower pressing plate corresponding to the through hole, and the conical guide pipe is inserted into the round hole.
Preferably, the first buffer rod comprises a first connecting pipe, a second connecting pipe and a spring, the upper surface of the first connecting pipe is fixedly connected with the lower surface of the sealing cover, the second connecting pipe is movably inserted into the lower surface of the first connecting pipe, the lower surface of the second connecting pipe is fixedly connected with the upper surface of the upper pressing plate, the spring is movably sleeved on the outer surfaces of the first connecting pipe and the second connecting pipe, and the upper side surface and the lower side surface of the spring are fixedly connected with the lower surface of the sealing cover and the upper surface of the upper pressing plate respectively.
Preferably, the length of the scraper is 3mm-5mm greater than that of the discharge opening, and the width of the scraper is 3cm-5cm greater than that of the discharge opening.
Compared with the prior art, the invention provides a lead smelting tail gas treatment method, which has the following beneficial effects:
(1) according to the tail gas treatment device used in the invention, the rectangular frame is installed through the limit baffle arranged in the vibration mechanism, the rectangular frame between the upper pressure plate and the lower pressure plate can move up and down through the first buffer rod and the second buffer rod, and then the vibration motor drives the vibration mode installation frame of the upper pressure plate to vibrate, so that the filtering mechanism in the rectangular frame vibrates, dust adhered to each filter plate in the installation frame is vibrated down, the filter plates do not need to be taken out and cleaned, and the service life of the filter plates is prolonged.
(2) According to the tail gas treatment device used in the invention, the motor in the ash discharge mechanism is arranged to rotate through the scraper in the rotating shaft electric circular ring, so that the scraper scrapes dust on the inner wall of the lower side of the circular ring to the discharge port to be discharged, and meanwhile, the scraper bar scrapes the dust on the upper surface of the scraper to the discharge port, so that the accumulated dust is conveniently discharged, the dust is prevented from being accumulated to block the discharge port, and the tail gas treatment device is more convenient to use.
Drawings
FIG. 1 is a diagram illustrating the steps of the present invention;
FIG. 2 is a schematic view showing the structure of an exhaust gas treatment apparatus used in the present invention;
FIG. 3 is a cross-sectional view of the case of the present invention;
fig. 4 is a plan view of the ash discharge mechanism of the present invention.
In the figure: 1. a box body; 2. an air inlet pipe; 3. an air outlet pipe; 4. a circular hole; 5. a vibration mechanism; 501. a sealing cover; 502. a first buffer rod; 503. an upper pressure plate; 504. a vibration motor; 505. a second buffer rod; 506. a lower pressing plate; 507. a through hole; 508. a limit baffle; 509. a rectangular frame; 6. an ash discharge mechanism; 601. a cylinder; 602. a discharge outlet; 603. a motor; 604. a rotating shaft; 605. a squeegee; 606. a circular ring; 607. scraping the strips; 7. supporting legs; 8. an extension frame; 9. locking the bolt; 10. a conical draft tube; 11. a first connecting pipe; 12. a second connecting pipe; 13. a spring.
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.
Referring to fig. 1-4, a method for treating lead smelting tail gas comprises the following steps:
s1: leading the Weiqi discharged from the lead smelting furnace into a heat exchanger, thereby cooling the tail gas, and reducing the temperature of the tail gas to 400-500 ℃;
s2: introducing the tail gas in the step S1 into a cyclone dust collector for dust removal, thereby removing larger dust and particulate matters in the tail gas and pretreating the tail gas;
s3: leading the tail gas treated in the step S2 into a tail gas treatment device, filtering and dedusting through a plurality of filter screen plates in a rectangular frame in the tail gas treatment device, reducing the dust content in the tail gas to be below 90%, and sending the tail gas to a downward moving process for continuous treatment after the treatment is finished;
s4: after the tail gas is introduced, a vibration motor in the tail gas treatment device is started to drive an upper pressure plate to vibrate, and then the rectangular frame is driven to vibrate through the upper pressure plate, so that dust adhered to a filter screen plate in the rectangular frame falls into a conical flow guide pipe, and the filter screen plate can be automatically cleaned without being taken out;
the tail gas treatment device used in the S3-S4 comprises a box body 1, wherein a gas inlet pipe 2 is fixedly arranged on the left side surface of the box body 1, a gas outlet pipe 3 is fixedly arranged on the right side surface of the box body 1, and a round hole 4 is formed in the lower surface of the box body 1; the vibration mechanism 5 comprises a sealing cover 501, a first buffer rod 502, an upper pressure plate 503, a vibration motor 504, a second buffer rod 505, a lower pressure plate 506, through holes 507, a limit baffle 508 and a rectangular frame 509, wherein the sealing cover 501 is installed on the upper surface of the box body 1, the upper pressure plate 503 is fixedly installed on the lower surface of the sealing cover 501 through the first buffer rod 502, the vibration motor 504 is fixedly installed on the upper surface of the upper pressure plate 503, the second buffer rod 505 is fixedly installed on the inner wall of the lower side of the box body 1 close to the left and right sides, the lower pressure plate 506 is fixedly installed on the upper surface of the second buffer rod 505, the through holes 507 are formed in the positions, corresponding to the round holes 4, of the lower pressure plate 506, the limit baffles 508 are fixedly installed on the left and right sides of the upper surfaces of the upper pressure plate 503 and the lower pressure plate 506, the rectangular frame 509 is movably installed between the limit baffles 508, and, various filter screen plates can be arranged in the grooves, and the front inner wall and the rear inner wall of the rectangular frame 509 are mutually attached to the inner walls of the box body 1; arrange grey mechanism 6, it includes drum 601, bin outlet 602, motor 603, pivot 604, scraper blade 605, ring 606 and scrapes strip 607 to arrange grey mechanism 6, drum 601 fixed mounting is in the corresponding box 1 lower surface of round hole 4, bin outlet 602 has been seted up on drum 601 lower side wall left side, drum 601 lower surface fixed mounting has motor 603, fixed mounting has pivot 604 on the output shaft of motor 603, and pivot 604 inserts and locates in the box 1, there is ring 606 through scraper blade 605 fixed mounting on the pivot 604, the left side inner wall of drum 601 and the corresponding fixed position of bin outlet 602 install scrape strip 607, and the lower surface of scraping strip 607 and the scraper blade 605 upper surface laminate each other.
The lower surface of the box body 1 is rectangular and fixedly provided with supporting legs 7, the supporting legs 7 are convenient to install the box body 1, the lower surface height of the box body 1 is improved, and therefore the ash discharging mechanism 6 is convenient to install.
Fixed surface mounting has the extension frame 8 under the sealed lid 501, extend frame 8 and pass through locking bolt 9 and box 1 fixed connection, extend frame 8 and be convenient for be connected sealed lid 501 and box 1 fixedly through locking bolt 9, the sealed lid 501 of being convenient for vibrates at will.
The conical guide pipe 10 is fixedly installed on the lower surface of the lower pressure plate 506 corresponding to the through hole 507, the conical guide pipe 10 is inserted into the circular hole 4, and the conical guide pipe 10 enables dust falling from the filter screen plate in the rectangular frame 509 to flow into the cylinder 601.
The length of the scraper 605 is 3mm-5mm larger than the length of the discharge opening 602, the width of the scraper 605 is 3cm-5cm larger than the width of the discharge opening 602, and the scraper 605 can completely seal the discharge opening 602, so that dust is prevented from flowing out through the discharge opening 602 in the processing state.
The working principle and the using process of the invention are as follows: when in use, various filter screen plates required to be used are sequentially arranged in a rectangular frame 509 from left to right, the rectangular frame 509 is arranged between limit baffles 508 on the upper surface of a lower pressure plate 506, a sealing cover 501 is fixedly arranged on the upper surface of a box body 1 through a locking bolt 9 and an extension frame 8, a vibration motor 504 in a vibration mechanism 5 drives an upper pressure plate 503 to vibrate, then the upper pressure plate 503 drives the rectangular frame 509 to vibrate, so that dust adhered to the filter screen plates in the rectangular frame 509 falls into a tapered guide pipe 10, the filter screen plates can be cleaned without being taken out, the service time of the filter plates is prolonged, the filter plates flow into a cylinder 601 through the tapered guide pipe 10, a motor 603 in an ash discharge mechanism 6 electrically drives a scraper 605 in a circular ring 606 to rotate through a rotating shaft 604, the scraper 605 scrapes the dust on the inner wall on the lower side of the cylinder 601 to a discharge port 602 to be discharged, and meanwhile, a scraper 607 scrapes the dust on the upper, the accumulated dust is conveniently discharged, the dust is prevented from being accumulated to block the discharge port 602, and the use is more convenient.
To sum up, this lead smelting tail gas processing apparatus through the 5 filter mechanism vibrations of taking in the rectangular frame 509 of vibration mechanism, shakes the dust of adhesion on each filter and falls, need not to take out the clearance with the filter, increases filter live time, and rethread ash discharge mechanism 6 is convenient for discharge accumulational dust, avoids the dust to pile up and blocks up bin outlet 602, and it is more convenient to use.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A lead smelting tail gas treatment method is characterized by comprising the following steps:
s1: leading the Weiqi discharged from the lead smelting furnace into a heat exchanger, thereby cooling the tail gas, and reducing the temperature of the tail gas to 400-500 ℃;
s2: introducing the tail gas in the step S1 into a cyclone dust collector for dust removal, thereby removing larger dust and particulate matters in the tail gas and pretreating the tail gas;
s3: leading the tail gas treated in the step S2 into a tail gas treatment device, filtering and dedusting through a plurality of filter screen plates in a rectangular frame in the tail gas treatment device, reducing the dust content in the tail gas to be below 90%, and sending the tail gas to a downward moving process for continuous treatment after the treatment is finished;
s4: after the tail gas is introduced, a vibration motor in the tail gas treatment device is started to drive an upper pressure plate to vibrate, and then the rectangular frame is driven to vibrate through the upper pressure plate, so that dust adhered to a filter screen plate in the rectangular frame falls into a conical flow guide pipe, and the filter screen plate can be automatically cleaned without being taken out;
wherein, the tail gas processing apparatus who uses in S3-S4 includes: the air inlet pipe (2) is fixedly installed on the left side face of the box body (1), the air outlet pipe (3) is fixedly installed on the right side face of the box body (1), and a round hole (4) is formed in the lower surface of the box body (1); the vibration mechanism (5), the vibration mechanism (5) comprises a sealing cover (501), a first buffer rod (502), an upper pressure plate (503), a vibration motor (603) (504), a second buffer rod (505), a lower pressure plate (506), through holes (507), a limit baffle (508) and a rectangular frame (509), the sealing cover (501) is installed on the upper surface of the box body (1), the upper pressure plate (503) is fixedly installed on the lower surface of the sealing cover (501) through the first buffer rod (502), the vibration motor (603) (504) is fixedly installed on the upper surface of the upper pressure plate (503), the second buffer rods (505) are fixedly installed on the inner wall of the lower side of the box body (1) close to the left side and the right side, the lower pressure plate (506) is fixedly installed on the upper surface of the second buffer rod (505), and the through holes (507) are formed in the positions, corresponding to the round holes (4), on the lower, limiting baffles (508) are fixedly arranged on the left side and the right side of the lower surface of the upper pressure plate (503) and the upper surface of the lower pressure plate (506), and a rectangular frame (509) is movably arranged between the limiting baffles (508); the ash discharging mechanism (6), the ash discharging mechanism (6) comprises a cylinder (601), a discharge hole (602), a motor (603), a rotating shaft (604), a scraper (605), a ring (606) and a scraping strip (607), the cylinder (601) is fixedly arranged on the lower surface of the box body (1) corresponding to the round hole (4), a discharge outlet (602) is formed in the left side of the lower side wall of the cylinder (601), a motor (603) is fixedly mounted on the lower surface of the cylinder (601), a rotating shaft (604) is fixedly mounted on an output shaft of the motor (603), and the rotating shaft (604) is inserted in the box body (1), a circular ring (606) is fixedly arranged on the rotating shaft (604) through a scraper (605), the left inner wall of the cylinder (601) is fixedly provided with a scraping strip (607) at the position corresponding to the discharge hole (602), and the lower surface of the scraping strip (607) is mutually jointed with the upper surface of the scraping plate (605).
2. The lead smelting tail gas treatment method according to claim 1, characterized by comprising the following steps: the lower surface of the box body (1) is rectangular and is fixedly provided with supporting legs (7).
3. The lead smelting tail gas treatment method according to claim 1, characterized by comprising the following steps: the lower surface of the sealing cover (501) is fixedly provided with an extension frame (8), and the extension frame (8) is fixedly connected with the box body (1) through a locking bolt (9).
4. The lead smelting tail gas treatment method according to claim 1, characterized by comprising the following steps: the lower surface of the lower pressing plate (506) is fixedly provided with a conical guide pipe (10) at a position corresponding to the through hole (507), and the conical guide pipe (10) is inserted into the round hole (4).
5. The lead smelting tail gas treatment method according to claim 1, characterized by comprising the following steps: first buffer beam (502) include first connecting pipe (11), second connecting pipe (12) and spring (13), first connecting pipe (11) upper surface and sealed lid (501) lower fixed surface are connected, the lower surface activity of first connecting pipe (11) is inserted and is equipped with second connecting pipe (12), and the lower surface and top board (503) upper fixed surface of second connecting pipe (12) are connected, first connecting pipe (11) and second connecting pipe (12) surface activity cover are equipped with spring (13), spring (13) upper and lower both sides face respectively with sealed lid (501) lower surface and top board (503) upper fixed surface are connected.
6. The lead smelting tail gas treatment method according to claim 1, characterized by comprising the following steps: the length of the scraper blade (605) is 3mm-5mm larger than that of the discharge opening (602), and the width of the scraper blade (605) is 3cm-5cm larger than that of the discharge opening (602).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010717459.9A CN111841223A (en) | 2020-07-23 | 2020-07-23 | Lead smelting tail gas treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010717459.9A CN111841223A (en) | 2020-07-23 | 2020-07-23 | Lead smelting tail gas treatment method |
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| Publication Number | Publication Date |
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| CN111841223A true CN111841223A (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010717459.9A Withdrawn CN111841223A (en) | 2020-07-23 | 2020-07-23 | Lead smelting tail gas treatment method |
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| CN (1) | CN111841223A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112947193A (en) * | 2021-02-18 | 2021-06-11 | 河南安伏众电子科技有限公司 | Data transceiver based on big dipper communication network |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2241572Y (en) * | 1995-11-08 | 1996-12-04 | 戴瑞清 | Pulse bag type dust collector |
| CN107349701A (en) * | 2017-08-28 | 2017-11-17 | 无锡昊瑜节能环保设备有限公司 | A kind of air purifier |
| CN207838508U (en) * | 2017-11-27 | 2018-09-11 | 红河州锦冶工贸有限公司 | A kind of molten Zn dust recycling process system |
| CN208824105U (en) * | 2018-08-28 | 2019-05-07 | 安徽易源电器有限公司 | A kind of air cleaning unit of automatic air compensation and deashing |
| CN211025523U (en) * | 2019-10-25 | 2020-07-17 | 陈一硕 | Filtering and dust removing equipment for environmental protection |
-
2020
- 2020-07-23 CN CN202010717459.9A patent/CN111841223A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2241572Y (en) * | 1995-11-08 | 1996-12-04 | 戴瑞清 | Pulse bag type dust collector |
| CN107349701A (en) * | 2017-08-28 | 2017-11-17 | 无锡昊瑜节能环保设备有限公司 | A kind of air purifier |
| CN207838508U (en) * | 2017-11-27 | 2018-09-11 | 红河州锦冶工贸有限公司 | A kind of molten Zn dust recycling process system |
| CN208824105U (en) * | 2018-08-28 | 2019-05-07 | 安徽易源电器有限公司 | A kind of air cleaning unit of automatic air compensation and deashing |
| CN211025523U (en) * | 2019-10-25 | 2020-07-17 | 陈一硕 | Filtering and dust removing equipment for environmental protection |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112947193A (en) * | 2021-02-18 | 2021-06-11 | 河南安伏众电子科技有限公司 | Data transceiver based on big dipper communication network |
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Application publication date: 20201030 |
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