CN108837608A - A kind of equipment for treating industrial waste gas - Google Patents
A kind of equipment for treating industrial waste gas Download PDFInfo
- Publication number
- CN108837608A CN108837608A CN201810700846.4A CN201810700846A CN108837608A CN 108837608 A CN108837608 A CN 108837608A CN 201810700846 A CN201810700846 A CN 201810700846A CN 108837608 A CN108837608 A CN 108837608A
- Authority
- CN
- China
- Prior art keywords
- water tank
- hothouse
- filter chamber
- strainer
- waste gas
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/02—Separation 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 by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation 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 by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of equipment for treating industrial waste gas, including support frame, filter chamber, water tank with strainer, hothouse, cooling chamber, respiratory box and air compressor, support frame as described above upper end is provided with filter chamber, filter chamber's upper center is provided with waste gas inlet, filter chamber's inside upper part is provided with adsorption layer, filter chamber's lower inside is provided with filtering side, and lower end is provided with filter chamber's exhaust outlet on the right side of the filter chamber.The present invention designs rationally in structure, when equipment uses, industrial waste gas enters in filter chamber, adsorption layer can adsorb the solid particle in gas, filter layer can filter out the noxious material in gas, and gas flows into water tank with strainer backward, and harmful substance is reacted with filtered fluid in water tank with strainer, thoroughly absorption harmful substance, effectively filters out the harmful substance in gas.
Description
Technical field
The present invention relates to field of environment protection, specifically a kind of equipment for treating industrial waste gas.
Background technique
A large amount of exhaust gas can be generated in industrial processes, these exhaust gas are generally by fuel combustion and production process
It is produced, a large amount of oxycarbide, sulfide, nitrogen oxides, heavy metal particles and industrial dust are contained in exhaust gas, if directly
Connect after being drained into atmosphere, not only can severe air quality, and once enter into the human body, can directly do harm to huamn body.
Currently, processing method is single, is generally simply filtered using filter screen in existing industrial waste gas processing
It discharges again, and some uses spray filtering, when carrying out spray filtering, the water body after spray is also to carry out direct emission, not only
Waste water resource, and certain pollution is caused to underground water.Therefore, those skilled in the art provide a kind of industrial waste gas processing
Device, to solve the problems mentioned in the above background technology.
Summary of the invention
The purpose of the present invention is to provide a kind of equipment for treating industrial waste gas, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the present invention provides the following technical solutions：
A kind of equipment for treating industrial waste gas, including support frame, filter chamber, water tank with strainer, hothouse, cooling chamber, respiratory box
And air compressor, support frame as described above upper end are provided with filter chamber, filter chamber's upper center is provided with waste gas inlet, institute
State filter chamber's inside upper part and be provided with adsorption layer, filter chamber's lower inside is provided with filter layer, on the right side of the filter chamber under
End is provided with filter chamber's exhaust outlet, and filter chamber's exhaust outlet is connected to by water tank connecting pipe with water tank with strainer, support frame as described above
Air blower is provided in the middle part of inner lower edge, the air blower is connected to by tracheae with water tank connecting pipe, in the water tank connecting pipe
It is provided with check valve；
It is provided with hothouse on the right side of the water tank with strainer, the hothouse upper end is provided with hothouse air inlet, the mistake
Water filtering tank is connected to by tracheae with hothouse, and the hothouse inside upper part is provided with filter screen, left and right inside the hothouse
Two sidewalls are mounted on water sucting plate, and the hothouse inner lower edge is provided with electrical heating net, and the electrical heating net upper center is set
It is equipped with heat conducting pipe, the hothouse right end is provided with hothouse exhaust outlet, and the hothouse exhaust outlet passes through tracheae and cooling chamber
Left end connection, the cooling chamber are internally provided with water-cooled plate, and the cooling chamber right end is connected to by tracheae with respiratory box right end, institute
It states respiratory box and is internally provided with absorption filter core, the respiratory box upper end is connected to by tracheae with air compressor.
Fixing groove, and filter layer are provided with as adsorption layer described in the present invention further scheme and filter layer both ends
For double-layer structure.
It is connect through support frame with water tank with strainer as water tank connecting pipe right end described in the present invention further scheme, and
Water tank connecting pipe and water tank with strainer junction are provided with control valve.
It is located at check valve as air blower escape pipe described in the present invention further scheme and water tank connecting pipe junction
Downside.
Partition, and partition and water sucting plate lower end are installed as electrical heating net upper end described in the present invention further scheme
It is fixedly connected.
Multiple branch pipes are symmetrically arranged with as heat conducting pipe two sides described in the present invention further scheme, and branch pipe is set as
It is skewed.
Compared with prior art, the beneficial effects of the invention are as follows：
1. present invention reasonable design, easy operation in structure is quick, practicability is very high, and equipment is in use, industrial waste gas
Into in filter chamber, adsorption layer can adsorb the solid particle in gas, and filter layer can filter out the noxious material in gas, gas
Body enters in water tank with strainer because air blower effect is constantly flowed backward, by filter chamber by water tank connecting pipe, in water tank with strainer
Harmful substance is reacted with filtered fluid, thoroughly adsorbs harmful substance, effectively filters out the harmful substance in gas.
2. in the use of the present invention, filtered gas enters in hothouse, in the meeting adsorbed gas of hothouse filtering net
The electrical heating net work of the filtered fluid taken out of out of water tank with strainer, hothouse bottom is dried gas by heat conducting pipe, and two
The water sucting plate of side can adsorb the moisture in gas, remove the moisture in gas, achieved the purpose that dry gas.
3. being cooled down by water-cooled plate and being absorbed heat, to reduce in the use of the present invention, gas enters cooling chamber with heat
The temperature of gas is conducive to the transmission and utilization of gas, filtered finally to flow to air compressor by respiratory box, effective complete
Pairs of industrial tail gas processing and utilization.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of equipment for treating industrial waste gas.
Fig. 2 is a kind of structural schematic diagram of filter chamber in equipment for treating industrial waste gas.
Fig. 3 is a kind of structural schematic diagram of hothouse in equipment for treating industrial waste gas.
In figure：1- support frame, the filter chamber 2-, 3- waste gas inlet, 4- adsorption layer, 5- filter layer, 6- fixing groove, 7- filtering
Room exhaust outlet, 8- check valve, 9- air blower, 10- water tank connecting pipe, 11- water tank with strainer, 12- hothouse, 13- hothouse air inlet
Mouth, 14- filter screen, 15- water sucting plate, 16- heat conducting pipe, 17- hothouse exhaust outlet, 18- electrical heating net, 19- water-cooled plate, 20- are cold
But room, 21- respiratory box, 22- absorb filter core, 23- air compressor.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1~3, in the embodiment of the present invention, a kind of equipment for treating industrial waste gas, including support frame 1, filter chamber 2,
Water tank with strainer 11, hothouse 12, cooling chamber 20, respiratory box 21 and air compressor 23,1 upper end of support frame as described above are provided with filtering
Room 2,2 upper center of filter chamber are provided with waste gas inlet 3, and 2 inside upper part of filter chamber is provided with adsorption layer 4, institute
It states 2 lower inside of filter chamber and is provided with filter layer 5, the 2 right side lower end of filter chamber is provided with filter chamber's exhaust outlet 7, the mistake
Filter chamber exhaust outlet 7 is connected to by water tank connecting pipe 10 with water tank with strainer 11, is provided with air blast in the middle part of 1 inner lower edge of support frame as described above
Machine 9, the air blower 9 are connected to by tracheae with water tank connecting pipe 10, are provided with check valve 8 in the water tank connecting pipe 10；
Hothouse 12 is provided on the right side of the water tank with strainer 11,12 upper end of hothouse is provided with hothouse air inlet
13, the water tank with strainer 11 is connected to by tracheae with hothouse 12, and 12 inside upper part of hothouse is provided with filter screen 14, institute
It states 12 inside left and right sides wall of hothouse and is mounted on water sucting plate 15,12 inner lower edge of hothouse is provided with electrical heating net
18,18 upper center of electrical heating net is provided with heat conducting pipe 16, and 12 right end of hothouse is provided with hothouse exhaust outlet 17,
The hothouse exhaust outlet 17 is connected to by tracheae with 20 left end of cooling chamber, and the cooling chamber 20 is internally provided with water-cooled plate 19,
20 right end of cooling chamber is connected to by tracheae with 21 right end of respiratory box, and the respiratory box 21, which is internally provided with, absorbs filter core 21,
21 upper end of respiratory box is connected to by tracheae with air compressor 23.
The adsorption layer 4 is provided with fixing groove 6 with 5 both ends of filter layer, and filter layer 5 is double-layer structure.
10 right end of water tank connecting pipe is connect through support frame 1 with water tank with strainer 11, and water tank connecting pipe 10 and filtering
11 junction of water tank is provided with control valve.
9 escape pipe of air blower and 10 junction of water tank connecting pipe are located at 8 downside of check valve.
18 upper end of electrical heating net is equipped with partition, and partition is fixedly connected with 15 lower end of water sucting plate.
16 two sides of heat conducting pipe are symmetrically arranged with multiple branch pipes, and branch pipe is set as skewed.
The working principle of the invention is：
The present invention relates to a kind of equipment for treating industrial waste gas, equipment in use, industry generate exhaust gas by waste gas inlet 3
Into in filter chamber 2, when by adsorption layer 4, adsorption layer 4 can adsorb the solid particle in gas, and gas flows down through
When filtering layer, filter layer 5 can filter out the noxious material in gas, and gas constantly flows backward because air blower 9 acts on, by filter chamber
2 enter in water tank with strainer 11 by water tank connecting pipe 10, and harmful substance is reacted with filtered fluid in water tank with strainer 11, thoroughly adsorb
Harmful substance；After gas harmful material is adsorbed, water tank with strainer 11 enters in hothouse 12, can inhale in hothouse filtering net 14
The work of electrical heating net 18 of the filtered fluid that attached gas is taken out of out of water tank with strainer 11,12 bottom of hothouse passes through 16 pairs of gas of heat conducting pipe
Body is dried, and the water sucting plate 15 of two sides can adsorb the moisture in gas；Gas is discharged by drying box, with heat
Into cooling chamber 20, cooled down by water-cooled plate and absorbed heat, after temperature decline, is transported in respiratory box 21, finally flowed by respiratory box 21
To air compressor, completes industrial tail gas processing and utilize.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms, should not will weigh
Any appended drawing reference in benefit requirement is construed as limiting the claims involved.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (6)
1. a kind of equipment for treating industrial waste gas, including support frame (1), filter chamber (2), water tank with strainer (11), hothouse (12), cold
But room (20), respiratory box (21) and air compressor (23), which is characterized in that support frame as described above (1) upper end is provided with filter chamber
(2), filter chamber (2) upper center is provided with waste gas inlet (3), and filter chamber (2) inside upper part is provided with absorption
Layer (4), filter chamber (2) lower inside are provided with filter layer (5), and lower end is provided with filter chamber on the right side of the filter chamber (2)
Exhaust outlet (7), filter chamber's exhaust outlet (7) are connected to by water tank connecting pipe (10) with water tank with strainer (11), support frame as described above
(1) it is provided with air blower (9) in the middle part of inner lower edge, the air blower (9) is connected to by tracheae with water tank connecting pipe (10), described
Check valve (8) are provided in water tank connecting pipe (10)；
It is provided with hothouse (12) on the right side of the water tank with strainer (11), hothouse (12) upper end is provided with hothouse air inlet
(13), the water tank with strainer (11) is connected to by tracheae with hothouse (12), and hothouse (12) inside upper part was provided with
Strainer (14), the internal left and right sides wall of the hothouse (12) are mounted on water sucting plate (15), bottom on the inside of the hothouse (12)
End is provided with electrical heating net (18), and electrical heating net (18) upper center is provided with heat conducting pipe (16), the hothouse (12)
Right end is provided with hothouse exhaust outlet (17), and the hothouse exhaust outlet (17) is connected to by tracheae with cooling chamber (20) left end,
The cooling chamber (20) is internally provided with water-cooled plate (19), and cooling chamber (20) right end passes through tracheae and respiratory box (21) right end
Connection, the respiratory box (21), which is internally provided with, absorbs filter core (21), and respiratory box (21) upper end passes through tracheae and air pressure
Contracting machine (23) connection.
2. a kind of equipment for treating industrial waste gas according to claim 1, which is characterized in that the adsorption layer (4) and filtering
Layer (5) both ends are provided with fixing groove (6), and filter layer (5) is double-layer structure.
3. a kind of equipment for treating industrial waste gas according to claim 1, which is characterized in that the water tank connecting pipe (10) is right
End is connect through support frame (1) with water tank with strainer (11), and water tank connecting pipe (10) is provided with water tank with strainer (11) junction
Control valve.
4. a kind of equipment for treating industrial waste gas according to claim 1, which is characterized in that air blower (9) escape pipe
It is located on the downside of check valve (8) with water tank connecting pipe (10) junction.
5. a kind of equipment for treating industrial waste gas according to claim 1, which is characterized in that electrical heating net (18) upper end
Partition is installed, and partition is fixedly connected with water sucting plate (15) lower end.
6. a kind of equipment for treating industrial waste gas according to claim 1, which is characterized in that heat conducting pipe (16) two sides pair
Title is provided with multiple branch pipes, and branch pipe is set as skewed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810700846.4A CN108837608A (en) | 2018-06-29 | 2018-06-29 | A kind of equipment for treating industrial waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810700846.4A CN108837608A (en) | 2018-06-29 | 2018-06-29 | A kind of equipment for treating industrial waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108837608A true CN108837608A (en) | 2018-11-20 |
Family
ID=64200796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810700846.4A Pending CN108837608A (en) | 2018-06-29 | 2018-06-29 | A kind of equipment for treating industrial waste gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108837608A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953858A (en) * | 2019-10-24 | 2020-04-03 | 太湖县木子峰农业发展有限公司 | Agricultural and forestry waste treatment device |
| CN114307498A (en) * | 2021-12-31 | 2022-04-12 | 江苏国升明华生态技术有限公司 | Waste gas treatment device and treatment system thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537336A (en) * | 2009-04-29 | 2009-09-23 | 山东大明消毒科技有限公司 | Polyethylene reaction kettle |
| CN206082023U (en) * | 2016-08-24 | 2017-04-12 | 贵州凯吉通医药包装机械有限公司 | Laser coding machine's dust, exhaust treatment device |
| CN206325386U (en) * | 2016-12-23 | 2017-07-14 | 马鞍山金安环境科技有限公司 | A kind of double-layer active carbon exhaust gas purification device |
| CN107096375A (en) * | 2017-06-16 | 2017-08-29 | 成都益睿信科技有限公司 | A kind of organic exhaust gas multi-stage treatment units |
| CN206793317U (en) * | 2017-06-09 | 2017-12-26 | 河南省安克林滤业有限公司 | A kind of waste gas filter for the pollutant in waste gas to be filtered out |
| CN207042176U (en) * | 2017-08-03 | 2018-02-27 | 山东沾化奥仕化学有限公司 | Emission-control equipment and exhaust treatment system |
| CN207085645U (en) * | 2017-08-01 | 2018-03-13 | 新昌县雷凯科技有限公司 | A kind of chemical gases drying device |
-
2018
- 2018-06-29 CN CN201810700846.4A patent/CN108837608A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537336A (en) * | 2009-04-29 | 2009-09-23 | 山东大明消毒科技有限公司 | Polyethylene reaction kettle |
| CN206082023U (en) * | 2016-08-24 | 2017-04-12 | 贵州凯吉通医药包装机械有限公司 | Laser coding machine's dust, exhaust treatment device |
| CN206325386U (en) * | 2016-12-23 | 2017-07-14 | 马鞍山金安环境科技有限公司 | A kind of double-layer active carbon exhaust gas purification device |
| CN206793317U (en) * | 2017-06-09 | 2017-12-26 | 河南省安克林滤业有限公司 | A kind of waste gas filter for the pollutant in waste gas to be filtered out |
| CN107096375A (en) * | 2017-06-16 | 2017-08-29 | 成都益睿信科技有限公司 | A kind of organic exhaust gas multi-stage treatment units |
| CN207085645U (en) * | 2017-08-01 | 2018-03-13 | 新昌县雷凯科技有限公司 | A kind of chemical gases drying device |
| CN207042176U (en) * | 2017-08-03 | 2018-02-27 | 山东沾化奥仕化学有限公司 | Emission-control equipment and exhaust treatment system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953858A (en) * | 2019-10-24 | 2020-04-03 | 太湖县木子峰农业发展有限公司 | Agricultural and forestry waste treatment device |
| CN114307498A (en) * | 2021-12-31 | 2022-04-12 | 江苏国升明华生态技术有限公司 | Waste gas treatment device and treatment system thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108837608A (en) | A kind of equipment for treating industrial waste gas | |
| CN206334484U (en) | A kind of waste gas treatment equipment | |
| CN205638639U (en) | A waste heat recovery processing apparatus for containing nitrogen dioxide tail gas | |
| CN207493403U (en) | A kind of wet type fine particle capture device | |
| CN108126423A (en) | A kind of emission-control equipment | |
| CN205340444U (en) | Purifier is used in workshop | |
| CN208809646U (en) | A kind of mine down-hole pernicious gas adsorbent equipment | |
| CN207762929U (en) | A kind of desorption combustion system of coating cloud exhaust gas | |
| CN207805295U (en) | A kind of coal-fired plant flue gas high-level cleaner | |
| CN207729681U (en) | A kind of novel environment friendly oil smoke processing integration apparatus | |
| CN207769491U (en) | A kind of coating cloud exhaust treatment system being desorbed manually | |
| CN206508696U (en) | A kind of lost foam casting tail gas processing unit | |
| CN213314084U (en) | Exhaust treatment device for more thorough treatment | |
| CN206377682U (en) | A kind of environment-protection boiler | |
| CN208302514U (en) | A kind of consumer waste incineration application exhaust smoke processing device with environment-friendly function | |
| CN209378716U (en) | A kind of processing equipment of organic exhaust gas | |
| CN207562623U (en) | A kind of adsorbent equipment of coating cloud exhaust gas | |
| CN208097725U (en) | A kind of chemical emission processing equipment | |
| CN107930293A (en) | A kind of coating cloud exhaust treatment system being continuously desorbed | |
| CN217795307U (en) | Boiler waste gas treatment equipment with waste gas heat recovery function | |
| CN211411479U (en) | High-efficient environment-friendly exhaust treatment device | |
| CN207605502U (en) | A kind of metabolic water leaching emission-control equipment | |
| CN207755982U (en) | A kind of energy-saving and environment-friendly equipment for treating industrial waste gas | |
| CN213610484U (en) | Air purification device for mining | |
| CN220110675U (en) | Ferrosilicon casting dust pelletizing system |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181120 |
|
| RJ01 | Rejection of invention patent application after publication |