CN113318553A - Flue gas purification device for rubber processing - Google Patents

Flue gas purification device for rubber processing Download PDF

Info

Publication number
CN113318553A
CN113318553A CN202110648623.XA CN202110648623A CN113318553A CN 113318553 A CN113318553 A CN 113318553A CN 202110648623 A CN202110648623 A CN 202110648623A CN 113318553 A CN113318553 A CN 113318553A
Authority
CN
China
Prior art keywords
pipe
flue gas
purifying agent
purification device
gas purification
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202110648623.XA
Other languages
Chinese (zh)
Inventor
张开辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangxi Kangdi New Material Co ltd
Original Assignee
Jiangxi Kangdi New Material Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangxi Kangdi New Material Co ltd filed Critical Jiangxi Kangdi New Material Co ltd
Priority to CN202110648623.XA priority Critical patent/CN113318553A/en
Publication of CN113318553A publication Critical patent/CN113318553A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/60Combinations of devices covered by groups B01D46/00 and B01D47/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/04Cleaning filters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/48Sulfur compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77Liquid phase processes
    • B01D53/78Liquid phase processes with gas-liquid contact
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77Liquid phase processes
    • B01D53/79Injecting reactants
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/0283Flue gases

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention relates to the technical field of flue gas purification, and discloses a flue gas purification device for rubber processing, which comprises a filter box, wherein support columns are fixed on two sides of the filter box, a water tank is arranged below the filter box and fixedly connected with the support columns, a water pump is arranged on the water tank and connected with a delivery pipe, a flue gas delivery pipe is arranged at the bottom of the filter box, the top of the delivery pipe extends into the filter box and is rotatably connected with a rotating pipe, a horizontal plate is arranged in the filter box, a vertically arranged pipe body is arranged on the horizontal plate, a filter bag arranged in an inverted manner is fixed in the pipe body, and the top of the rotating pipe extends into the filter bag and is fixedly provided with a transverse pipe and a brush. The invention greatly improves the dust removal efficiency in the flue gas, has good dust removal effect, realizes the cleaning of the filter bag, does not need manual cleaning, realizes continuous filtration and purification, improves the use quality, ensures that harmful gas fully reacts with the purifying agent, and has sufficient absorption and good purification effect.

Description

Flue gas purification device for rubber processing
Technical Field
The invention relates to the technical field of flue gas purification, in particular to a flue gas purification device for rubber processing.
Background
Flue gas is a mixture of gas and smoke dust and is the main cause of atmospheric pollution in residential areas. The components of the flue gas are complex, the gas comprises water vapor, SO2, N2, O2, CO2 hydrocarbon, nitrogen oxide and the like, and the smoke comprises ash, coal particles, oil drops, pyrolysis products and the like of the fuel. Therefore, the pollution of the flue gas to the environment is the composite pollution of various poisons. The hazard of smoke to human bodies is related to the size of particles, most of which are fly ash with the diameter less than 10 microns, and particularly the fly ash with the diameter of 1-2.5 microns is the most harmful to human bodies.
When the existing flue gas purification device for rubber processing is used, dust in flue gas is removed through filtration, but a filter part is easily polluted, the filter efficiency is influenced, and the effect of removing the dust is general, so that the flue gas purification device for rubber processing is provided to solve the problems.
Disclosure of Invention
The invention provides a smoke purification device for rubber processing, which solves the problems in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
a flue gas purification device for rubber processing comprises a filter box, wherein support columns are fixed on two sides of the filter box, a water tank is arranged below the filter box and fixedly connected with the support columns, a water pump is arranged on the water tank and connected with a delivery pipe, a flue gas delivery pipe is arranged at the bottom of the filter box, the top of the delivery pipe extends into the filter box and is rotatably connected with a rotating pipe, a horizontal plate is arranged in the filter box, a vertically arranged pipe body is arranged on the horizontal plate, a filter bag arranged in an inverted manner is fixed in the pipe body, the top of the rotating pipe extends into the filter bag and is fixedly provided with a transverse pipe and a hairbrush, the hairbrush is in contact with the inner wall of the top of the filter bag, the top of the rotating pipe is of a sealing structure, a plurality of atomizing nozzles are arranged at the top of the transverse pipe, the transverse pipe is communicated with the rotating pipe, a driving block is arranged in the pipe body and is rotatably connected with the rotating pipe, and an air suction pipe is fixed on one side of the filter box, the air suction pipe is connected with the top of the pipe body, the fan is installed at the top of the air suction pipe, one end of the fan is connected with a gas conveying pipe, the top of the filter box is provided with a purifying agent box, the top of the purifying agent box is rotatably provided with a round pipe, the bottom of the round pipe extends into the purifying agent box and is fixedly connected with a flow dividing pipe, the bottom of the flow dividing pipe is provided with a plurality of gas outlet pipes, the top of the purifying agent box is provided with a gas outlet, the bottom of the filter box is provided with a discharge pipe, a sealing plug is installed on the bottom of the discharge pipe in a threaded mode, and the top of the flue gas conveying pipe is located above the top of the discharge pipe.
Preferably, the top fixed mounting of filter box has the bearing bar of vertical setting, and the top of bearing bar is fixed with the board of placing of level setting, and the fan is installed on the board is placed to the water tank.
Preferably, the horizontal plate is provided with a mounting hole, the top and the bottom of the pipe body penetrate through the mounting hole, and the pipe body is fixedly connected with the inner wall of the mounting hole.
Preferably, the top of support column is equipped with the water inlet, and it has the lid to articulate on the intaking, and the bottom of water tank is equipped with the drain pipe, is equipped with the valve on the drain pipe.
Preferably, be equipped with the cavity on the drive block, the cavity is run through at the top of rotating tube, is equipped with servo motor in the cavity, and the fixed cover of servo motor's output shaft is equipped with the driving gear, and the fixed cover is equipped with driven gear on the rotating tube, driving gear and driven gear meshing.
Preferably, two ends of the shunt pipe are provided with sealing mechanisms, and the plurality of air outlet pipes are arranged at the bottom of the shunt pipe at equal intervals along the horizontal direction.
Preferably, a driving motor is fixedly mounted on the inner wall of the top of the purifying agent box, and an output shaft of the driving motor is in transmission connection with the circular tube through a belt pulley.
Preferably, the top of the purifying agent box is provided with a purifying agent adding port, and a cover plate is hinged on the purifying agent adding port.
The invention has the beneficial effects that:
carry the flue gas to enter into the rose box through flue gas conveyer pipe, through the fan, the gas in the breathing pipe absorption, the guide flue gas carries out the filter through the filter bag, carry water through water pump and conveyer pipe simultaneously and pass through the rotating tube and violently manage, spray the flue gas from atomizer, drive the rotating tube through servo motor and rotate, realize violently managing the rotation, the realization is rotated and is sprayed, carry out the large tracts of land spray processing to the dust in the flue gas, to further filtering flue gas through the filter bag, the dust in the very big improvement flue gas gets rid of efficiency, the dust removal effect is good.
The hairbrush rotates to brush dust on the filter bag through the rotation of the spraying and rotating pipe, so that attached dust particles fall down, the filter bag is cleaned through matching with spraying, manual cleaning is not needed, continuous filtering and purification are realized, and the use quality is improved;
carry the gas after filtering to enter into the pipe through breathing pipe, fan and gas-supply pipe, blow off from the outlet duct through the shunt tubes, the purifying agent incasement is equipped with the solution that reacts with harmful substance in the gas, can add the desulfurizer, remove harmful gas through purifying agent and gaseous harmful substance reaction, realize further purification treatment, it makes the shunt tubes rotate the stirring to drive the pipe through driving motor simultaneously for harmful gas fully reacts with the purifying agent, and the absorption is abundant, and purifying effect is good.
The invention greatly improves the dust removal efficiency in the flue gas, has good dust removal effect, realizes the cleaning of the filter bag, does not need manual cleaning, realizes continuous filtration and purification, improves the use quality, ensures that harmful gas fully reacts with the purifying agent, and has sufficient absorption and good purification effect.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic sectional structure view of the filter box of the present invention.
Fig. 3 is a schematic cross-sectional view of the tube of the present invention.
Fig. 4 is a schematic sectional structure diagram of the driving block of the present invention.
FIG. 5 is a schematic sectional view showing the structure of the depurative tank of the present invention.
In the figure: 1. a filter box; 2. a support pillar; 3. a water tank; 4. a water pump; 5. a delivery pipe; 6. a flue gas conveying pipe; 7. a horizontal plate; 8. a pipe body; 9. a drive block; 10. rotating the tube; 11. a transverse tube; 12. an atomizing spray head; 13. a filter bag; 14. a brush; 15. an air intake duct; 16. a purifying agent tank; 17. a fan; 18. a gas delivery pipe; 19. a circular tube; 20. a shunt tube; 21. an air outlet pipe; 22. a drive motor; 23. an air outlet; 24. a servo motor.
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.
Referring to fig. 1-5, a flue gas purification device for rubber processing comprises a filter box 1, support pillars 2 are fixed on two sides of the filter box 1, a water tank 3 is arranged below the filter box 1, the water tank 3 is fixedly connected with the support pillars 2, a water pump 4 is arranged on the water tank 3, the water pump 4 is connected with a delivery pipe 5, a flue gas delivery pipe 6 is arranged at the bottom of the filter box 1, the top of the delivery pipe 5 extends into the filter box 1 and is rotatably connected with a rotating pipe 10, a horizontal plate 7 is arranged in the filter box 1, a vertically arranged pipe body 8 is arranged on the horizontal plate 7, a filter bag 13 arranged in an inverted manner is fixed in the pipe body 8, the top of the rotating pipe 10 extends into the filter bag 13 and is fixed with a horizontal pipe 11 and a brush 14, the brush 14 is in contact with the inner wall of the top of the filter bag 13, the top of the rotating pipe 10 is a sealing structure, a plurality of, the drive block 9 rotates with the rotating tube 10 to be connected, one side of filter box 1 is fixed with breathing pipe 15, breathing pipe 15 is connected with the top of body 8, fan 17 is installed at the top of breathing pipe 15, the one end of fan 17 is connected with air supply pipe 18, the top of filter box 1 is equipped with purifying agent case 16, pipe 19 is installed in the rotation of the top of purifying agent case 16, the bottom of pipe 19 extends to in the purifying agent case 16 and fixedly connected with shunt tubes 20, the bottom of shunt tubes 20 is equipped with a plurality of outlet ducts 21, the top of purifying agent case 16 is equipped with gas outlet 23, the bottom of filter box 1 is equipped with discharge pipe 24, the sealing plug is installed to the bottom screw thread of discharge pipe 24, the top of flue gas conveyer pipe 6 is located the top of discharge pipe 24.
In this embodiment, the top of the filter box 1 is fixedly provided with a vertically arranged bearing rod, the top of the bearing rod is fixed with a horizontally arranged placing plate, and the fan 17 is arranged on the placing plate of the water tank 3.
In this embodiment, seted up the mounting hole on the horizontal plate 7, the mounting hole is all run through to the top and the bottom of body 8, the inner wall fixed connection of body 8 and mounting hole.
In this embodiment, the top of support column 2 is equipped with the water inlet, and it has the lid to articulate on the intaking, and the bottom of water tank 3 is equipped with the drain pipe, is equipped with the valve on the drain pipe.
In this embodiment, a cavity is formed in the driving block 9, the top of the rotating tube 10 penetrates through the cavity, a servo motor 24 is arranged in the cavity, a driving gear is fixedly sleeved on an output shaft of the servo motor 24, a driven gear is fixedly sleeved on the rotating tube 10, and the driving gear is meshed with the driven gear.
In this embodiment, the two ends of the shunt tube 20 are provided with sealing mechanisms, and the plurality of outlet pipes 21 are equidistantly arranged at the bottom of the shunt tube 20 along the horizontal direction.
In the embodiment, a driving motor 22 is fixedly mounted on the inner wall of the top of the purifying agent tank 16, and an output shaft of the driving motor 22 is in transmission connection with the circular pipe 19 through a pulley.
In the embodiment, a purifying agent adding port is arranged at the top of the purifying agent box 16, and a cover plate is hinged on the purifying agent adding port.
The working principle is as follows: carry the flue gas to enter into rose box 1 through flue gas conveyer pipe 6 in, through fan 17, the breathing pipe 15 absorbs the gas in 1, the guide flue gas carries out the filter through filter bag 13, carry water through water pump 4 and conveyer pipe 5 simultaneously and through rotating-tube 10 and violently manage 11, spray the flue gas from atomizer 12, drive rotating-tube 10 through servo motor 24 and rotate, it rotates to realize violently managing 11, realize rotating and spray, carry out the large tracts of land spray treatment to the dust in the flue gas, through filter bag 13 to further filtering flue gas, the dust in the very big improvement flue gas gets rid of efficiency, the dust removal effect is good. The hairbrush 14 rotates to brush dust on the filter bag 13 through the rotation of the spraying and rotating pipe 10, so that attached dust particles fall down, the filter bag is cleaned through matching with spraying, manual cleaning is not needed, continuous filtering and purification are realized, and the use quality is improved; the filtered gas is conveyed into the circular tube 19 through the air suction pipe 15, the fan 17 and the air conveying pipe 18, the gas is blown out from the air outlet pipe 21 through the shunt pipe 20, solution reacting with harmful substances in the gas is arranged in the purifying agent box 16, a desulfurizing agent can be added, the harmful gas is removed through the reaction of the purifying agent and the harmful substances in the gas, further purification treatment is realized, meanwhile, the driving motor 22 drives the circular tube 19 to rotate, so that the shunt pipe 20 rotates and is stirred, the harmful gas is fully reacted with the purifying agent, the absorption is sufficient, and the purification effect is good.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (8)

1. The utility model provides a flue gas purification device for rubber processing, includes rose box (1), its characterized in that, the both sides of rose box (1) are fixed with support column (2), the below of rose box (1) is equipped with water tank (3), water tank (3) and support column (2) fixed connection, be equipped with water pump (4) on water tank (3), water pump (4) are connected with conveyer pipe (5), and flue gas conveyer pipe (6) are installed to the bottom of rose box (1), the top of conveyer pipe (5) extends to in rose box (1) and rotate and be connected with rotating tube (10), be equipped with horizontal plate (7) in rose box (1), install vertical setting's body (8) on horizontal plate (7), body (8) internal fixation has filter bag (13) of handstand setting, the top of rotating tube (10) extends to in filter bag (13) and is fixed with violently pipe (11) and brush (14), the top inner wall contact of brush (14) and filter bag (13), the top of rotating tube (10) is seal structure, and the top of violently managing (11) is equipped with a plurality of atomizer (12), violently manage (11) and rotating tube (10) intercommunication, be equipped with drive block (9) in body (8), drive block (9) and rotating tube (10) rotate to be connected, one side of straining box (1) is fixed with breathing pipe (15), and breathing pipe (15) are connected with the top of body (8), fan (17) is installed at the top of breathing pipe (15), the one end of fan (17) is connected with air-supply pipe (18), the top of straining box (1) is equipped with purifying agent case (16), the top of purifying agent case (16) is rotated and is installed pipe (19), and the bottom of pipe (19) extends to in purifying agent case (16) and fixedly connected with shunt tubes (20), the bottom of shunt tubes (20) is provided with a plurality of air outlet pipes (21), the top of purifying agent box (16) is provided with an air outlet (23), the bottom of the filter box (1) is provided with a discharge pipe (24), the bottom of the discharge pipe (24) is provided with a sealing plug in a threaded manner, and the top of the flue gas conveying pipe (6) is positioned above the top of the discharge pipe (24).
2. The flue gas purification device for rubber processing as claimed in claim 1, wherein a vertically arranged bearing rod is fixedly arranged at the top of the filter box (1), a horizontally arranged placing plate is fixed at the top of the bearing rod, and the fan (17) is arranged on the placing plate of the water tank (3).
3. The flue gas purification device for rubber processing as claimed in claim 1, wherein the horizontal plate (7) is provided with a mounting hole, the top and the bottom of the pipe body (8) both penetrate through the mounting hole, and the pipe body (8) is fixedly connected with the inner wall of the mounting hole.
4. The flue gas purification device for rubber processing as claimed in claim 1, wherein a water inlet is arranged at the top of the support column (2), a cover body is hinged to the inlet water, a drain pipe is arranged at the bottom of the water tank (3), and a valve is arranged on the drain pipe.
5. The flue gas purification device for rubber processing as claimed in claim 1, wherein the driving block (9) is provided with a cavity, the top of the rotating tube (10) penetrates through the cavity, a servo motor (24) is arranged in the cavity, an output shaft of the servo motor (24) is fixedly sleeved with a driving gear, a driven gear is fixedly sleeved on the rotating tube (10), and the driving gear is meshed with the driven gear.
6. The flue gas purification device for rubber processing as claimed in claim 1, wherein the two ends of the shunt tube (20) are provided with sealing mechanisms, and the plurality of outlet pipes (21) are arranged at equal intervals at the bottom of the shunt tube (20) along the horizontal direction.
7. The flue gas purification device for rubber processing as claimed in claim 1, wherein a driving motor (22) is fixedly installed on the inner wall of the top of the purifying agent tank (16), and an output shaft of the driving motor (22) is in transmission connection with the circular tube (19) through a belt pulley.
8. The flue gas purification device for rubber processing as claimed in claim 1, wherein a purifying agent adding port is provided at the top of the purifying agent tank (16), and a cover plate is hinged to the purifying agent adding port.
CN202110648623.XA 2021-06-10 2021-06-10 Flue gas purification device for rubber processing Withdrawn CN113318553A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110648623.XA CN113318553A (en) 2021-06-10 2021-06-10 Flue gas purification device for rubber processing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110648623.XA CN113318553A (en) 2021-06-10 2021-06-10 Flue gas purification device for rubber processing

Publications (1)

Publication Number Publication Date
CN113318553A true CN113318553A (en) 2021-08-31

Family

ID=77421222

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110648623.XA Withdrawn CN113318553A (en) 2021-06-10 2021-06-10 Flue gas purification device for rubber processing

Country Status (1)

Country Link
CN (1) CN113318553A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115487668A (en) * 2022-09-29 2022-12-20 朱琳洁 Industrial waste gas desulfurization, denitrification and purification treatment system and treatment method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115487668A (en) * 2022-09-29 2022-12-20 朱琳洁 Industrial waste gas desulfurization, denitrification and purification treatment system and treatment method

Similar Documents

Publication Publication Date Title
CN111249821A (en) Industrial waste gas treatment device
CN216171304U (en) Novel environment-friendly industrial waste gas purifies device
CN210121419U (en) Cement kiln flue gas treatment equipment
CN116422131A (en) Industrial waste gas purifying device
CN113318553A (en) Flue gas purification device for rubber processing
CN218130775U (en) A flue gas treatment facility for giving up burning admittedly
CN210303127U (en) A kind of waste gas purification device for air pollution control
CN111330382A (en) Waste gas purification environment-friendly equipment and purification method thereof
CN216726627U (en) A kind of waste gas treatment device for environmental protection
CN218047145U (en) Industrial waste gas treatment mechanism with good environmental protection performance
CN213790748U (en) Harmful gas processing apparatus for environmental protection engineering
CN213824158U (en) Industrial waste gas washing tower for industrial waste gas treatment
CN216878677U (en) Industrial waste gas treatment device
CN213668669U (en) Purifying tower for efficient treatment of chemical waste gas
CN218834090U (en) Novel low emission gas cleaning of thermal power plant device
CN211706361U (en) An industrial desulfurization auxiliary device
CN210229487U (en) Waste gas treatment device adopting ultrasonic atomizer
CN110180301B (en) Environment-friendly industrial waste gas treatment equipment
CN114247283A (en) High-efficient purifier of nitrogenous sulphur industrial waste gas
CN223490696U (en) Recovery purification treatment device for chemical waste gas
CN220276601U (en) The method comprises the following steps of: industrial flue gas purifying device for treatment
CN216537676U (en) Fountain air purification device
CN111013366A (en) Waste gas purification spray column of environmental protection
CN216023942U (en) Desulfurization and denitrification device for industrial gas treatment
CN216498519U (en) Dry quenching flue gas reposition of redundant personnel hierarchical desulfurization dust collector

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication

Application publication date: 20210831

WW01 Invention patent application withdrawn after publication