CN107281842A - A kind of high-temperature dust removing device - Google Patents
A kind of high-temperature dust removing device Download PDFInfo
- Publication number
- CN107281842A CN107281842A CN201710732400.5A CN201710732400A CN107281842A CN 107281842 A CN107281842 A CN 107281842A CN 201710732400 A CN201710732400 A CN 201710732400A CN 107281842 A CN107281842 A CN 107281842A
- Authority
- CN
- China
- Prior art keywords
- casing
- ceramic fibre
- fibre filter
- filter layer
- removing device
- 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
- 239000000428 dust Substances 0.000 title claims abstract description 55
- 239000000919 ceramic Substances 0.000 claims abstract description 43
- 239000000835 fiber Substances 0.000 claims abstract description 41
- 239000003054 catalyst Substances 0.000 claims abstract description 10
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 29
- 238000002347 injection Methods 0.000 claims description 18
- 239000007924 injection Substances 0.000 claims description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 229910052573 porcelain Inorganic materials 0.000 claims description 2
- 238000000462 isostatic pressing Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 10
- 238000003825 pressing Methods 0.000 abstract description 7
- 238000012545 processing Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 208000025599 Heat Stress disease Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- 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
- B01D46/0001—Making filtering elements
-
- 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
-
- 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
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/72—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with backwash arms, shoes or nozzles
-
- 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
-
- 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
- B01D53/86—Catalytic processes
- B01D53/88—Handling or mounting catalysts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (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)
- Filtering Of Dispersed Particles In Gases (AREA)
- Filtering Materials (AREA)
Abstract
The invention discloses a kind of high-temperature dust removing device, including casing, the casing side connects an air inlet, opposite side connects a gas outlet, the first air pressure regulator is provided between the air inlet and the casing, the second air pressure regulator is provided between the gas outlet and the casing, fixed seat is provided with the casing, the ceramic fibre filter layer cutting ferrule containing catalyst is arranged between the fixed seat, the ceramic fibre filter layer is to be spliced by polylith ceramic beaverboard, the ceramic fibre filter is made using equal pressing forming technology, the ceramic fibre filter layer upper and lower surface is cambered surface waveform, the casing is additionally provided with clinker area close to the air inlet side, the ash releasing tube of the clinker area lower end is provided with a unloading valve.The present invention uses equal pressing forming technology, and ceramic fibre filter is made in combination with catalyst, realizes dedusting denitrification integral.
Description
Technical field
The present invention relates to flue gas ash removal field, more particularly to a kind of high-temperature dust removing device.
Background technology
With the development of science and technology, the dynamics of Environmental protection is gradually increased, with coal, oil, gas etc. for fuel
All conglomeraties increasingly increase high temperature fume dust removal requirement.In the market most dust arrester mainly using bag-type dust,
Electric precipitation and water film dedusting, these dust removal methods can not carry out high-temperature process mostly, be unfavorable for effective utilization of energy, and damage
Heat dissipation can be very serious, also there is the shortcomings of operating cost is high.Although existing high-temperature dust removal pipe can carry out high-temperature dust removal,
Because manufacturing filter using external pressure forming technique, heat fatigue occurs after being used for multiple times to shorten its service life, and
Its porosity causes efficiency of dust collection not high.
The content of the invention
The technical problems to be solved by the invention are：A kind of high-temperature dust removal pipe is provided, outer platen press forming technique can be overcome
Defect, while increasing porosity using the ceramic fibre containing catalyst so as to improving efficiency of dust collection.
The present invention the used technical scheme that solves the above problems is：Design a kind of high-temperature dust removing device, including casing, institute
State casing side and connect an air inlet, the casing opposite side connects a gas outlet, set between the air inlet and the casing
There is the first air pressure regulator, be provided between the gas outlet and the casing in the second air pressure regulator, the casing provided with solid
Reservation, the ceramic fibre filter layer cutting ferrule containing catalyst is arranged between the fixed seat, the ceramic fibre filter layer
To be spliced by polylith ceramic beaverboard, the ceramic fibre filter is made using equal pressing forming technology, described
Ceramic fibre filter layer upper and lower surface is cambered surface waveform, and the casing is additionally provided with clinker area close to the air inlet side,
The ash releasing tube of the clinker area lower end is provided with a unloading valve.
It is preferred that, the casing is additionally provided with the grey component of blowback, and the grey component of the blowback includes being arranged at outside the casing
Air pump, conduit and the regulating valve for connecting the conduit, the tube at one end connect the air pump, and the other end accesses the casing,
The conduit is provided with injection mouth simultaneously, and the spray mouthpiece section is stretched into the ceramic fibre filter, uses the grey group of blowback
Part processing is attached to the dust on ceramic fibre filter, extends its useful life.
It is preferred that, the injection mouth is multiple, and every piece of ceramic fibre filter has been at least connected with an injection
Mouthful, ensure that ceramic fibre filter layer can carry out uniform blowback ash disposal.
It is preferred that, the porous type that is shaped as being blown mouth, the purge gas is nitrogen, and porous type can allow gas more
Good injection it is more preferably uniform, while blowback ash gas will not produce shadow using cheap nitrogen to the gas of required processing
Ring.
It is preferred that, the fixed seat is being additionally provided with a dust remover close to the air inlet side, and the dust remover is rapping
Dust remover, the dust from gas particle very little of required processing just can be by ceramic fibre filter using vibration dust-cleaning device
Dust is tapped, and prevents ceramic fibre filter from being resulted in blockage because of excessive dust.
Compared with prior art, the advantage of the invention is that：Using equal pressing forming technology, made in combination with catalyst
Make ceramic fibre filter, can allow it that there is thermal fatigue resistance characteristic and high porosity, greatly increase efficiency of dust collection, realize that dedusting takes off
Nitre integration.
Brief description of the drawings
Fig. 1 high-temperature dust removing device section of structures of the present invention.
Label declaration in figure：1st, casing, 2, air inlet, 3, gas outlet, the 4, first air pressure regulator, 5, fixed seat, 6, pottery
Porcelain fiber filter plate, 7, clinker area, 8, unloading valve, 9, air pump, 10, conduit, 11, regulating valve, 12, injection mouth, 13, dust remover,
14th, the second air pressure regulator.
Embodiment
Embodiments of the invention are further described below in conjunction with the accompanying drawings.
As shown in figure 1, the present embodiment is related to a kind of high-temperature dust removal pipe, including casing 1, the side of casing 1 connects an air inlet
2, the opposite side of casing 1 connects a gas outlet 3, and the first air pressure regulator 4, gas outlet 2 and case are provided between air inlet 2 and casing 1
The second air pressure regulator 14 is provided between body 1, air pressure regulator 4 adjusts the gas of gas outlet 3 by adjusting the size of air inlet 2
Pressure.Annular fixed seat 5 is provided with casing 1, the cutting ferrule of ceramic fibre filter layer 6 containing catalyst is arranged between fixed seat 5, in reality
Conventional three-way catalyst can be used during the use of border, hole can be improved using the ceramic fibre filter containing catalyst
Rate, so that efficiency of dust collection is improved.Ceramic fibre filter is made using equal pressing forming technology, equal pressing forming technology
It can ensure that ceramic fibre filter has thermal fatigue resistance, make it have higher service life, and use ceramic fibre
Being capable of high temperature resistant.As an improvement, the upper and lower surface of ceramic fibre filter 6 is cambered surface waveform, cambered surface is designed to increase gas
The contact area of body, makes dust removing effects more preferable.Casing 1 is additionally provided with clinker area 7, the row of the lower end of clinker area 7 close to air inlet side
Ash pipe is provided with a unloading valve 8, can open casing 1 by unloading valve 8, allow dust to be excluded from clinker area 7.
Preferred embodiment two, this preferred embodiment discloses a kind of high-temperature dust removal pipe, and the high-temperature dust removal pipe is with being preferable to carry out
Device described in example one is essentially identical, and difference is：Casing 1 is additionally provided with the grey component of blowback, and blowback ash component includes setting
In the air pump 9 outside casing 1, the regulating valve 11 of conduit 10 and connecting conduit 9, the one end of conduit 10 connection air pump 9, other end access case
Body 1, while conduit 10 is provided with injection mouth 12, injection mouth 12 part is stretched into ceramic fibre filter.Come using small air pump
Gases at high pressure are provided, gas is led into ceramic fibre filter 6 by the injection mouthful 12 on conduit 10, ceramic fibre is will be attached to
Dust on filter 6, which is blown down, to be come, and prevents from saving bit by bit excessive dust influence dust removing effects on ceramic fibre filter 6, while also may be used
Extend the useful life of ceramic fibre filter 6, it is to avoid frequently change cost-effective.In actual production in use, injection mouth 12
To be multiple, injection mouth 12 can be one, or 12 pairs of ceramic fibre filter layers 6 of multiple injection mouths carry out multiple directions injections.Instead
Soot blowing component is multiple, in arrangement type, and the grey component of multiple blowbacks can share a regulating valve 11 to adjust the atmospheric pressure value of air pump 9.
Be blown mouth 12 is shaped as single-orifice type, porous type or grid-type, and blowing gas is the inert gases such as nitrogen, helium, neon, or this is several
Plant the arbitrary proportion mixing of gas.It is preferred that, be blown mouth is shaped as porous type, and purge gas is nitrogen, and porous type can allow
Gas injection it is more preferably uniform, while blowback ash gas will not produce shadow using cheap nitrogen to the gas of required processing
Ring, environment will not be impacted while nitrogen is also uncontaminated gases.Blowback ash component can be arranged at casing 1 with clinker area 7
Homonymy or offside.
Preferred embodiment three, this preferred embodiment discloses a kind of high-temperature dust removal pipe, and the high-temperature dust removal pipe is with being preferable to carry out
Device described in example two is essentially identical, and difference is：Fixed seat 5 is being additionally provided with a dust remover 13 close to the side of air inlet 2,
Dust remover 13 is vibration dust-cleaning device, acoustic wave soot blower, steam dust remover or brush dust remover, and dust remover 13 can dispose attachment
Dust on ceramic fibre filter, prevents ceramic fibre filter from being resulted in blockage because of excessive dust, reaches and preferred real
Apply the effect as example two.One dust remover 13 can be set by every piece of ceramic fibre filter 6, or only near entering
A dust remover 13 is set on the ceramic fibre filter 6 on the side of gas port 2.It is preferred that, dust remover 13 selects vibration dust-cleaning device, because
In the gas of required processing, dust granule very little can just be struck the dust on ceramic fibre filter using vibration dust-cleaning device
Hit.
Beneficial effects of the present invention are：Using equal pressing forming technology, ceramic fibre mistake is made in combination with catalyst
Filter plate, can allow it to have thermal fatigue resistance characteristic and high porosity, greatly increase efficiency of dust collection.
Some preferred embodiments of the present invention have shown and described in described above, but as previously described, it should be understood that the present invention
Be not limited to form disclosed herein, be not to be taken as the exclusion to other embodiment, and available for various other combinations,
Modification and environment, and above-mentioned teaching or the technology or knowledge of association area can be passed through in invention contemplated scope described herein
It is modified., then all should be in this hair and the change and change that those skilled in the art are carried out do not depart from the spirit and scope of the present invention
In the protection domain of bright appended claims.
Claims (5)
1. a kind of high-temperature dust removing device, including casing (1), casing (1) side connect an air inlet (2), the casing (1)
Opposite side connects a gas outlet (3), it is characterised in that：Adjusted between the air inlet (2) and the casing (1) provided with the first air pressure
Valve (4) is saved, is provided with the second air pressure regulator (14), the casing (1) and sets between the gas outlet (2) and the casing (1)
There is fixed seat (5), described ceramic fibre filter layer (6) cutting ferrule containing catalyst is arranged between the fixed seat (5), the pottery
Porcelain fibrous filter layer (6) is is spliced by polylith ceramic beaverboard, and the ceramic fibre filter uses isostatic pressing skill
Art is made, and ceramic fibre filter layer (6) upper and lower surface is cambered surface waveform, and the casing (1) is entered described in
Gas port side is additionally provided with clinker area (7), and the ash releasing tube of clinker area (7) lower end is provided with a unloading valve (8).
2. a kind of high-temperature dust removing device according to claim 1, it is characterised in that：The casing (1) is additionally provided with blowback ash
Component, the grey component of the blowback includes being arranged at the air pump (9) of the casing (1) outside, conduit (10) and the connection conduit (9)
Regulating valve (11), described conduit (10) one end connects the air pump (9), and the other end accesses the casing (1), while described lead
(10) are managed provided with multiple injection mouths (12), the injection mouth (12) is partly stretched into the ceramic fibre filter layer.
3. a kind of high-temperature dust removing device according to claim 2, it is characterised in that：The injection mouth (12) is multiple, institute
State ceramic fibre filter layer (6) and be at least connected with an injection mouth (12).
4. high-temperature dust removing device according to claim 3, it is characterised in that：Being shaped as the injection mouth (12) is porous
Type, the blowback ash gas are nitrogen.
5. a kind of high-temperature dust removing device according to claim 1, it is characterised in that：The fixed seat (5) is close to described
Air inlet (2) side is additionally provided with a dust remover (13), and the dust remover (13) is vibration dust-cleaning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710732400.5A CN107281842A (en) | 2017-08-24 | 2017-08-24 | A kind of high-temperature dust removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710732400.5A CN107281842A (en) | 2017-08-24 | 2017-08-24 | A kind of high-temperature dust removing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107281842A true CN107281842A (en) | 2017-10-24 |
Family
ID=60107134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710732400.5A Pending CN107281842A (en) | 2017-08-24 | 2017-08-24 | A kind of high-temperature dust removing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107281842A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278624A (en) * | 2017-12-12 | 2018-07-13 | 中国恩菲工程技术有限公司 | Waste heat boiler flue dust control method and device |
| CN108939790A (en) * | 2018-10-08 | 2018-12-07 | 河南工程学院 | A kind of weaving loom weaving dirt collection device |
| CN108970795A (en) * | 2018-09-04 | 2018-12-11 | 天津市乐矿机械设备制造有限公司 | A kind of In Mine Crusher feed hopper |
| CN109316843A (en) * | 2018-10-25 | 2019-02-12 | 程斌 | A kind of lifting valve device for dust collector with proofing dust and protecting |
| CN112138542A (en) * | 2020-10-13 | 2020-12-29 | 南京依涛环保科技有限公司 | High-temperature flue gas dedusting, denitration and desulfurization system and method |
| CN119240993A (en) * | 2024-11-14 | 2025-01-03 | 江苏瑞达环保科技股份有限公司 | A wastewater treatment device for zinc borate production |
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| WO2007068022A1 (en) * | 2005-12-16 | 2007-06-21 | Porzellanfabrik Frauenthal Gmbh | Process and honeycomb body for purifying and/or regenerating gases |
| CN101126336A (en) * | 2006-08-16 | 2008-02-20 | 德国曼商用车辆股份公司 | Exhaust gas aftertreatment system |
| CN105413342A (en) * | 2015-12-15 | 2016-03-23 | 苏州铭冠软件科技有限公司 | Smog dust removal system |
| CN106318472A (en) * | 2016-11-01 | 2017-01-11 | 中国科学院过程工程研究所 | High temperature dust-containing coal gas dust removal device |
-
2017
- 2017-08-24 CN CN201710732400.5A patent/CN107281842A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007068022A1 (en) * | 2005-12-16 | 2007-06-21 | Porzellanfabrik Frauenthal Gmbh | Process and honeycomb body for purifying and/or regenerating gases |
| CN101126336A (en) * | 2006-08-16 | 2008-02-20 | 德国曼商用车辆股份公司 | Exhaust gas aftertreatment system |
| CN105413342A (en) * | 2015-12-15 | 2016-03-23 | 苏州铭冠软件科技有限公司 | Smog dust removal system |
| CN106318472A (en) * | 2016-11-01 | 2017-01-11 | 中国科学院过程工程研究所 | High temperature dust-containing coal gas dust removal device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278624A (en) * | 2017-12-12 | 2018-07-13 | 中国恩菲工程技术有限公司 | Waste heat boiler flue dust control method and device |
| CN108970795A (en) * | 2018-09-04 | 2018-12-11 | 天津市乐矿机械设备制造有限公司 | A kind of In Mine Crusher feed hopper |
| CN108939790A (en) * | 2018-10-08 | 2018-12-07 | 河南工程学院 | A kind of weaving loom weaving dirt collection device |
| CN108939790B (en) * | 2018-10-08 | 2021-09-28 | 河南工程学院 | Weaving machine weaving dirt collection device |
| CN109316843A (en) * | 2018-10-25 | 2019-02-12 | 程斌 | A kind of lifting valve device for dust collector with proofing dust and protecting |
| CN112138542A (en) * | 2020-10-13 | 2020-12-29 | 南京依涛环保科技有限公司 | High-temperature flue gas dedusting, denitration and desulfurization system and method |
| CN112138542B (en) * | 2020-10-13 | 2024-10-29 | 南京依涛环保科技有限公司 | A high-temperature flue gas dust removal, denitrification and desulfurization system and method |
| CN119240993A (en) * | 2024-11-14 | 2025-01-03 | 江苏瑞达环保科技股份有限公司 | A wastewater treatment device for zinc borate production |
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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 | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 337022 no.1-127, zone B, Xiangdong Industrial Park, Pingxiang City, Jiangxi Province Applicant after: PINGXIANG PUTIAN HI-TECH INDUSTRIAL Co.,Ltd. Address before: 337019 Xiangdong ceramic industry base, Pingxiang City, Jiangxi Province:PINGXIANG PUTIAN HI-TECH INDUSTRIAL Co.,Ltd. 337019 Pingxiang Putian hi tech Industrial Co., Ltd., East Hunan ceramic industry base, Pingxiang City, Jiangxi Province Applicant before: PINGXIANG PUTIAN HI-TECH INDUSTRIAL Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171024 |