CN107401929B - A kind of fume dust remover with backwashing function - Google Patents
A kind of fume dust remover with backwashing function Download PDFInfo
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- CN107401929B CN107401929B CN201710863231.9A CN201710863231A CN107401929B CN 107401929 B CN107401929 B CN 107401929B CN 201710863231 A CN201710863231 A CN 201710863231A CN 107401929 B CN107401929 B CN 107401929B
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- tank body
- valve
- pipe
- outlet
- flue gas
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
-
- 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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a kind of fume dust remover with backwashing function, including tank body, end cap is respectively welded in tank body front and back end, and the one end of two end cap far from tank body is respectively as gas inlet and exhanst gas outlet；Tank body front and back end is separately installed with cover board, and screen pipe is installed in tank body, accommodates filtering material particle in screen pipe；Multiple partitions are installed, baffle interval interlaced arrangement simultaneously forms labyrinth path, and water inlet pipe and outlet pipe is arranged in tank wall in tank body；Tank body upper end side wall forms accommodating cavity, and accommodating cavity is connected to steam outlet pipe；End cap sidewalls are equipped with clear dirt and export and be arranged the first valve, install the second valve at gas inlet；It can carry out flue gas ash removal and heat exchange and backwash operation.Its technical solution can realize the function of portable cleaning by backwash, and the operation of dedusting and the waste heat recycling heat exchange of the realization high-temperature smoke of integral type, stable structure is reliable, and efficiency is higher, the cost of the manufacturing is greatly reduced, and alleviates the work load of operator.
Description
Technical field
The present invention relates to high-temperature flue gas purification and technical field of exhaust heat recovery equipment, more particularly to one kind to have backwash function
The fume dust remover of energy.
Background technique
The highly energy-consumings such as metallurgy, chemical industry, building materials, maximum discharge industry high temperature flue gas waste heat recovery and purification subtract China's energy conservation
Row plays a significant role.Industrial high temperature flue gas has the characteristics that complicated component, dustiness are high, is corrosive, operating condition changes greatly, makes
Flue gas waste heat recovery and purification device there are filter cloggings and regeneration that difficult, waste heat recycles the bottlenecks such as low with purification efficiency asks
Topic, it would be highly desirable to solve.
High-temperature flue gas purification and waste heat, which recycle common method, reduces flue gas mainly include the following types: 1) first passing through spray mode
Temperature, while most of dust is removed, it is then dusted using cloth bag or ceramic tube filter etc., the recycling of this method waste heat
Rate is extremely low, and there are secondary pollutions.2) by high-temperature dust-containing flue gas be introduced directly into waste heat boiler carry out waste heat recycling, be then discharged out compared with
The ash-laden gas of low temperature passes through cloth bag or ceramic tube filter etc. again and carries out accurate dedusting, but the high concentration contained in flue gas
Dust can form a thick layer slag in boiler wall surface, increase heat transfer resistance, reduce waste heat recovery efficiency, need periodically to carry out people
Work slagging-off, and high-temperature flue gas cannot directly enter waste heat boiler since temperature is higher, needs to first pass through water-cooling wall and is cooled down, drop
Low waste heat recovery efficiency.3) first high-temperature flue gas is carried out using the high-temperature dust removing devices such as grain bed and ceramic tube filter net
Change, waste heat recycling then carried out by heat exchanger again, which waste heat recovery efficiency with higher, but due to dust removal process and
Heat transfer process separately carries out, and can not carry out temperature regulation to dust removal process to improve dust removal performance, and lead to cleaner volume
It is larger, higher cost；And when high-temperature flue gas contains coagulability grit, ceramic tube filter be easy blocking after can not deashing, from
And can not regeneration, and filtering material particle easy-to-clean ash and is recycled, due to being formed using discrete sphere in grit containing coagulability
There is irreplaceable advantage in high temperature fume dust removal.
Summary of the invention
The object of the present invention is to provide a kind of fume dust removers with backwashing function, to overcome above-mentioned skill
Art defect.
Specific technical solution is as follows:
A kind of fume dust remover with backwashing function, including horizontal tank body, tank body rear and front end is respectively welded
There is the end cap penetrated through in horn-like structure and front and back, two one end of end cap far from tank body are respectively as gas inlet and cigarette
Gas outlet；
The rear and front end of tank body is separately installed with cover board, and more screen pipes, and screen pipe content are horizontally installed in tank body
It is equipped with filtering material particle, carries out absorption dust removal process through the flue gas of screen pipe to convection current, it is horizontal on two cover plates perforative to open up
There are multiple circular holes opposite with screen pipe rear and front end respectively, one piece of round sieve plate is mounted in each circular hole；
The longitudinally disposed partition of muti-piece, and the cloth of multiple partitions interleaved are also equipped with along the extreme direction of front and back in tank body
It sets and forms labyrinth path in tank interior, the upper side wall of tank body is provided with inside connection close at the position of tank body rear end
Water inlet pipe, tank body lower wall is provided with the outlet pipe inside connection close at the position of tank body front end, in water inlet pipe, labyrinth type stream
Circulation has the cooling water to carry out heat exchange processing with the high-temperature flue gas in screen pipe in road and outlet pipe；
The formation that the side wall of tank body upper end also swells upwards has an accommodating cavity, and accommodating cavity is communicated with a steam outlet pipe,
And steam outlet pipe is connected with external steam generating set；One is also provided on the side wall of the end cap of tank body front end clearly
Dirt exports, and is provided with the first valve in clear dirt outlet, the second valve is equipped at gas inlet；It is opened in the first valve of closing
After second valve, the operation that high-temperature flue gas carries out flue gas ash removal and waste heat recycling is sent by gas inlet, and closing the second valve
After door and the first valve of opening, inert gas is sent by exhanst gas outlet and carries out backwash operation；Along the direction of rear end forward end,
The internal diameter of screen pipe is gradually reduced.
Preferably, further include a disposal box, it is horizontally installed with a supporting plate in disposal box, it is more through offering on supporting plate
A mounting hole, and each mounting hole is embedded with a dust cloth bag, the first valve is communicated with a dust outlet tube, and dust outlet tube is separate
One end of first valve is protruded into disposal box, the escape pipe in the bottom side of the wall of disposal box outside installation connection.
The beneficial effect of above-mentioned technical proposal is:
The function that portable cleaning can be realized by backwash is capable of dedusting and the waste heat of the realization high-temperature smoke of integral type
The operation of heat exchange is recycled, stable structure is reliable, and efficiency is higher, greatly reduces the cost of the manufacturing, and alleviate operator
The work load of member.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the fume dust remover that the present invention has backwashing function；
Fig. 2 is the structural representation that the present invention has tank body internal partition set-up mode in the fume dust remover of backwashing function
Figure；
Fig. 3 is the structural schematic diagram at the visual angle A-A in Fig. 1；
Fig. 4 is the structural schematic diagram at the visual angle B-B in Fig. 1；
Fig. 5 is the partial enlarged view in the portion I in Fig. 1.
Specific embodiment
It is real below in order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention
1 to 5 pair of attached drawing of the example combination fume dust remover provided by the invention with backwashing function is applied to be specifically addressed.
It refering to fig. 1, is the structural schematic diagram of the fume dust remover with backwashing function；In conjunction with Fig. 2, for recoil
Wash the structural schematic diagram of tank body internal partition set-up mode in the fume dust remover of function；And Fig. 3, it is the visual angle A-A in Fig. 1
Structural schematic diagram；And Fig. 4, it is the structural schematic diagram at the visual angle B-B in Fig. 1；And Fig. 5, it is the partial enlarged view in the portion I in Fig. 1.
And be the structure feature of clear display the present embodiment, it is omitted in figure and part-structure is shown, part-structure is then to have an X-rayed or section view
Mode is shown.And defining the direction on paper as shown in Figure 1 from right to left is direction of the device by rear end forward end, paper
Up and down direction shown on face is the up and down direction of the device, and direction shown in arrow is the flow direction of high-temperature flue gas in Fig. 1,
Direction shown in arrow is the intracorporal cooling water of tank along the flow direction of labyrinth path in Fig. 2.
As shown in Fig. 1 to Fig. 5, the fume dust remover provided by the invention with backwashing function includes horizontal tank
Body 1,1 rear and front end of tank body are respectively welded the end cap 2 penetrated through in horn-like structure and front and back, and two end caps 2 are far from tank
One end of body 1 is respectively as gas inlet and exhanst gas outlet；The rear and front end of tank body 1 is also separately installed with longitudinally disposed one piece
Cover board 3 is horizontally installed with more screen pipes 4 in tank body 1, and is equipped with filtering material particle 5 in screen pipe 4, to convection current through filtering
The flue gas of pipe 4 carries out absorption dust removal process, on two cover plates 3 it is horizontal it is perforative offer it is multiple respectively with 4 front and back two of screen pipe
Opposite circular hole (not shown) is held, one piece of round sieve plate 31 is mounted in each circular hole, to be connected to the front and back of tank body 1
Filtering material particle 5 is simultaneously enclosed in screen pipe 4 by both ends, will not be flowed out during the work time outside screen pipe 4；Along front and back in tank body 1
It is also equipped with the longitudinally disposed partition 6 of muti-piece on extreme direction, and the arrangement of 6 interleaved of multiple partitions and in 1 inside shape of tank body
At labyrinth path, the upper side wall of tank body 1 is provided with the water inlet pipe 11 inside connection, tank body 1 close at the position of 1 rear end of tank body
Lower wall be provided with close at the position of 1 front end of tank body connection inside outlet pipe 12, in water inlet pipe 11, labyrinth path and
Circulation has the cooling water to carry out heat exchange processing with the high-temperature flue gas in screen pipe 4 in outlet pipe 12；The side wall of 1 upper end of tank body
The formation also swelled upwards has an accommodating cavity 7, and accommodating cavity 7 is communicated with a steam outlet pipe 71, and steam outlet pipe 71 and outer
Portion's steam-electric power unit 9 is connected, to push the turbine of steam-electric power unit 9 to generate electricity；End cap 2 positioned at 1 front end of tank body
Side wall on be also provided with a clear dirt outlet (not shown), be provided with the first valve 21, gas inlet in clear dirt outlet
Place is equipped with the second valve 22；Close the first valve 21 open the second valve 22 after, by gas inlet be sent into high-temperature flue gas into
The operation of row flue gas ash removal and waste heat recycling, and after closing the second valve 22 and opening the first valve 21, it is sent by exhanst gas outlet
Enter inert gas and carries out backwash operation.
In concrete application, the operation that the operation and hair recycled including flue gas ash removal and waste heat are rinsed, for the former, by this dress
The rear end forward end set is sent into high-temperature flue gas, and high-temperature flue gas can be ironmaking, coking of coal etc. in industry and obtain, in tank body 1
Then circulation has water in labyrinth path, and filtering material particle 5 is mounted in screen pipe 4, during high-temperature flue gas flows through screen pipe 4,
Filtering material particle 5 carries out absorption dust removal process to flue gas, adsorbs the dust in flue gas, at the same time, the water in tank body 1, with filtering
High-temperature flue gas in pipe 4 conducts heat heat exchange by the tube wall of screen pipe 4, absorbs the waste heat in high-temperature flue gas, cooling water section
It is warmed as hot water, outflow tank body 1 further uses, and separately has part cooling water to be heated and is evaporated to vapor, and vapor is to upstream
It is dynamic, and steam outlet pipe 71 is entered by accommodating cavity 7, then flow into steam-electric power unit 9, push turbine to carry out hot steam hair
Electricity, the i.e. waste heat of high-temperature flue gas have obtained sufficient recycling.After the long-time service of filtering material particle 5, adsorption is more
Dust, filter effect is deteriorated, closes the second valve 22 at this time, the first valve 21 is opened, by the side of the front end rear end of tank body 1
To the inert gas such as nitrogen for being sent into high pressure, filtering material particle 5 is in screen pipe 4 in rolling process, the powder by surface of duration
Dirt be detached from and via 21 device for transferring of the first valve outside, realize the function of backwash.So as to the realization high temperature of integral type
The operation of the dedusting of flue dust and waste heat recycling heat exchange, and the function of portable cleaning can be realized by backwash, stable structure can
It leans on, efficiency is higher, greatly reduces the cost of the manufacturing, and alleviate the work load of operator.
In a preferred embodiment, along the direction of rear end forward end, the internal diameter of screen pipe 4 is gradually reduced.Make
During smoke filtration, high-temperature flue gas blows filtering material particle 5 and flows to 4 Inner Front End of screen pipe, opposite circulation area compared with
Small, air-flow is slow, exchanges heat more abundant, and during the backwash process, inert gas blows filtering material particle 5 and flows in screen pipe 4
Rear end, opposite circulation area is larger, and air-flow is very fast, it is easier to blow out the dust adsorbed on filtering material particle 5 outside screen pipe 4.
Embodiment as a further preference, partition 6 are upper and lower including closing 1 middle part of tank body as shown in Figure 3
The unclosed first structure in portion, and the partition 6 passed through in first structure that screen pipe 4 is embedded, further include sealing as shown in Figure 4
Close the middle part of tank body 1 and lower part and unclosed the second structure in top, and the partition 6 passed through in the second structure that screen pipe 4 is embedded,
What the partition 6 of first structure and the second structure was staggeredly spaced is arranged in tank body 1, so that forming labyrinth type stream shown in Fig. 2
Road, and the flow ports of steam have all been reserved on top.
Embodiment as a further preference, specifically as shown in figure 1 and figure 5, the inner sidewall of circular hole are provided with interior spiral shell
Line, the periphery of round sieve plate 31 is equipped with the external screw thread to match with internal screw thread, and round sieve plate 31 is threadedly connected in circular hole.And circle
Run through on shape sieve plate 31 and offers multiple ventilative ducts.
In a preferred embodiment, the present apparatus further includes a disposal box 8, is horizontally installed with one in disposal box 8
Frame plate 81, through offering multiple mounting holes on supporting plate 81, and each mounting hole is embedded with a dust cloth bag 82, and first
Valve 21 is communicated with a dust outlet tube 24, and dust outlet tube 24 protrudes into disposal box 8 far from one end of the first valve 21, disposal box 8
Escape pipe 83 in bottom side of the wall outside installation connection.So that the inert gas with dust through the first valve 21 and dust outlet tube 24 into
Enter in disposal box 8, recycling inert gas is flowed out by escape pipe 83 after dust cloth bag 82 filters dust.And the peace of dust cloth bag 82
Dress mode is usual manner, therefore omits repeat here.Further, smoke outlet is equipped with third valve 23, and three valves
Door preferably uses butterfly valve.
The foregoing is merely presently preferred embodiments of the present invention, is merely illustrative for the purpose of the present invention, and not restrictive
's.Those skilled in the art understand that in the spirit and scope defined by the claims in the present invention many changes can be carried out to it,
It modifies or even equivalent, but falls in protection scope of the present invention.
Claims (2)
1. a kind of fume dust remover with backwashing function, which is characterized in that including horizontal tank body (1), the tank body
(1) rear and front end is respectively welded the end cap (2) penetrated through in horn-like structure and front and back, and two end caps (2) are separate
One end of the tank body (1) is respectively as gas inlet and exhanst gas outlet；
The rear and front end of the tank body (1) is separately installed with cover board (3), is horizontally installed with more screen pipes in the tank body (1)
(4), filtering material particle (5) and in the screen pipe (4) are equipped with, to adsorb to the flue gas for flowing through the screen pipe (4)
Dust removal process, on two pieces of cover boards (3) it is horizontal it is perforative offer it is multiple opposite with the screen pipe (4) rear and front end respectively
Circular hole, one piece of round sieve plate (31) is mounted in each circular hole；
The longitudinally disposed partition of muti-piece (6), and partition described in muti-piece are also equipped with along the extreme direction of front and back in the tank body (1)
(6) arrangement of interleaved and labyrinth path is formed inside the tank body (1), the upper side wall of the tank body (1) is close to institute
The water inlet pipe (11) being provided with inside connection at the position of tank body (1) rear end is stated, tank body (1) lower wall is close to the tank body
(1) outlet pipe (12) being provided at the position of front end inside connection, Yu Suoshu water inlet pipe (11), labyrinth path and water outlet
Circulation has the cooling water to carry out heat exchange processing with the high-temperature flue gas in the screen pipe (4) in pipe (12)；
The formation that the side wall of tank body (1) upper end also swells upwards has an accommodating cavity (7), and the accommodating cavity (7) is communicated with
One steam outlet pipe (71), and the steam outlet pipe (71) is connected with external steam generating set (9)；Positioned at the tank body
(1) it is also provided with a clear dirt outlet on the side wall of the end cap (2) of front end, is provided with the first valve in the clear dirt outlet
(21), it is equipped at the gas inlet the second valve (22)；Second valve is opened in closing first valve (21)
After door (22), the operation that high-temperature flue gas carries out flue gas ash removal and waste heat recycling is sent by the gas inlet, and described in the closing
Second valve (22) and after opening first valve (21), is sent into inert gas by the exhanst gas outlet and carries out backwash behaviour
Make；Along the direction of rear end forward end, the internal diameter of the screen pipe (4) is gradually reduced.
2. as described in claim 1 with the fume dust remover of backwashing function, which is characterized in that further include a disposal box
(8), it is horizontally installed with a supporting plate (81) in the disposal box (8), runs through on the supporting plate (81) and offer multiple installations
Hole, and each mounting hole is embedded with a dust cloth bag (82), first valve (21) is communicated with a dust outlet tube
(24), and the dust outlet tube (24) protrudes into the disposal box (8) far from one end of first valve (21), the disposal box
(8) escape pipe (83) in bottom side of the wall outside installation connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710863231.9A CN107401929B (en) | 2017-09-22 | 2017-09-22 | A kind of fume dust remover with backwashing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710863231.9A CN107401929B (en) | 2017-09-22 | 2017-09-22 | A kind of fume dust remover with backwashing function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107401929A CN107401929A (en) | 2017-11-28 |
| CN107401929B true CN107401929B (en) | 2019-03-26 |
Family
ID=60388820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710863231.9A Active CN107401929B (en) | 2017-09-22 | 2017-09-22 | A kind of fume dust remover with backwashing function |
Country Status (1)
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| CN (1) | CN107401929B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH481669A (en) * | 1967-07-12 | 1969-11-30 | Filtrox Maschb Ag | Process for cleaning a filter device with built-in filter and device for carrying out the process |
| DE3247762A1 (en) * | 1982-12-23 | 1984-10-11 | Fa. Harry Wettermann Energie-Rückführungs-Systeme, 7277 Wildberg | Dry sorption filter for chemisorption of noxious gases and adsorption of hot dusts |
| DE19508804A1 (en) * | 1995-03-15 | 1996-09-19 | Pierburg Gmbh | Exhaust gas soot filter for Diesel engines |
| CN104764338A (en) * | 2015-03-19 | 2015-07-08 | 南京华电节能环保设备有限公司 | Heat pipe type smoke pulverized coal heating device |
| CN205269289U (en) * | 2016-01-07 | 2016-06-01 | 浙江宏宇环保工程设备有限公司 | Back flush flue gas filtration system |
| CN106902586A (en) * | 2017-04-24 | 2017-06-30 | 扬州市君睿创智工业设计有限公司 | A kind of filter bag of dust collector just dismounting type framework |
-
2017
- 2017-09-22 CN CN201710863231.9A patent/CN107401929B/en active Active
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| CN107401929A (en) | 2017-11-28 |
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Address after: 337022 Jiangxi city in Pingxiang Province, Xiangdong District, Pingxiang ceramics industry base (BU Zhen Da Po Cun Xiangdong District) Applicant after: Pingxiang Huaxing Environmental Protection Engineering Technology Co., Ltd. Address before: 337019 Industrial South Road of ceramic industry base in Pingxiang, Jiangxi Province:PINGXIANG HUAXING CHEMICAL EQUIPMENT PACKING CO., LTD. Applicant before: PINGXIANG HUAXING CHEMICAL EQUIPMENT PACKING CO., LTD. |
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