CN205473104U - Electroplating wastewater treatment device - Google Patents
Electroplating wastewater treatment device Download PDFInfo
- Publication number
- CN205473104U CN205473104U CN201620193282.6U CN201620193282U CN205473104U CN 205473104 U CN205473104 U CN 205473104U CN 201620193282 U CN201620193282 U CN 201620193282U CN 205473104 U CN205473104 U CN 205473104U
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- CN
- China
- Prior art keywords
- lower house
- processing equipment
- gripper shoe
- waste processing
- reaction tank
- 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- Withdrawn - After Issue
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- 238000009713 electroplating Methods 0.000 title claims abstract description 54
- 238000004065 wastewater treatment Methods 0.000 title abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 239000003814 drug Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 73
- 239000002699 waste material Substances 0.000 claims description 24
- 238000009288 screen filtration Methods 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 11
- 239000003610 charcoal Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000000746 purification Methods 0.000 abstract description 7
- 238000009298 carbon filtering Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract 1
- 235000017491 Bambusa tulda Nutrition 0.000 abstract 1
- 241001330002 Bambuseae Species 0.000 abstract 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract 1
- 239000011425 bamboo Substances 0.000 abstract 1
- 238000005192 partition Methods 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 description 36
- 229910001385 heavy metal Inorganic materials 0.000 description 10
- 150000002500 ions Chemical class 0.000 description 10
- 238000007747 plating Methods 0.000 description 8
- 239000000126 substance Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000002910 solid waste Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 208000031320 Teratogenesis Diseases 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 231100000570 acute poisoning Toxicity 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 208000007502 anemia Diseases 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 231100000739 chronic poisoning Toxicity 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 210000000936 intestine Anatomy 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 231100000518 lethal Toxicity 0.000 description 1
- 230000001665 lethal effect Effects 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000219 mutagenic Toxicity 0.000 description 1
- 230000003505 mutagenic effect Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000036647 reaction Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 210000000952 spleen Anatomy 0.000 description 1
- 208000018556 stomach disease Diseases 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Water Treatment By Sorption (AREA)
Abstract
This patent belongs to electroplating wastewater treatment equipment field, and in particular to electroplating wastewater treatment device includes by the reaction tank of casing with partition plate group one -tenth, the baffle is divided into casing and lower casing with the casing, be equipped with first earial drainage mouth on the baffle, first earial drainage mouth lies in the one side of being connected of baffle and last casing, the casing is equipped with sieve filter mechanism and active carbon filtering mechanism down, and active carbon filtering mechanism lies in play water orientation one side of sieve filter mechanism, go up all be equipped with on casing and the casing down with the inside communicating medicament section of thick bamboo of reaction tank and electrolyser. This patent compact structure practices thrift the space, and for the enterprise has reduced the cost of use, sieve filter mechanism, active carbon filtering mechanism, electrolyser etc. Is provided with to do benefit to and carries out abundant and effectual purification to electroplating effluent simultaneously.
Description
Technical field
This utility model belongs to electroplating waste water treatment equipment field, particularly to a kind of electroplating waste processing equipment.
Background technology
Electroplating wastewater has the material of the biggest toxicity containing the heavy metal ion such as substantial amounts of chromium, zinc, copper, cadmium, lead, nickel and acid, alkali, cyanide, some is also containing carcinogenic, teratogenesis, mutagenic extremely toxic substance, as cyanogen can cause people and animals' acute poisoning, lethal, low concentration long term also can cause chronic poisoning；Cr VI can cause pulmonary carcinoma, intestines and stomach disease and anemia, and can be in bone, the dirty interior accumulation of spleen and liver；The grave danger caused the life security of people in view of electroplating wastewater, it is extremely necessary for recycling it.
Current electroplating waste water treatment equipment is mainly made up of regulating reservoir, dosing tank, reduction pond, neutralization reaction tank, pH regulator pond, flocculation basin, tube settler, chamber-type press filter, clear water reserviors, air supporting reaction, active carbon filter etc., such equipment not only floor space is big, and needs input the most.
For the problem that floor space is big, disclose a kind of electroplating wastewater processing machine of a kind of Application No. CN201520322196.6 at present, but it is space-saving while, owing to only reacting with medicament in one reaction pool when it processes waste water, again through a filtration treatment, there is the most again the problem undesirable to electroplating wastewater processing effect.
Utility model content
This utility model is intended to provide a kind of electroplating waste processing equipment taking up an area less and being effectively treated electroplating wastewater.
For achieving the above object, a kind of electroplating waste processing equipment that this utility model provides, including the reaction tank being made up of housing and dividing plate, housing is divided into upper shell and lower house by described dividing plate, described dividing plate is provided with the first relief port, and the first relief port is positioned at the connection side of dividing plate and upper shell；Described lower house is provided with screen filtration mechanism and activated carbon filter structure, and activated carbon filter structure is positioned at the side, water outlet direction of screen filtration mechanism；It is equipped with on described upper shell and lower house and the medicament cartridge communicated inside reaction tank and electrolyser.
nullThe operation principle of this programme: after electroplating wastewater enters reaction tank，The heavy metal ion contained according to it and chemical substance，Reacted with the electroplating wastewater in reaction tank by the medicament in medicament cartridge，And can utilize heater that electroplating wastewater is heated，It is allowed to reach optimal reaction temperature，Fully after reaction，Electroplating wastewater through purifying for the first time flows into screen filtration mechanism by the first relief port to carry out purifying for the second time，Float in electroplating wastewater and some solid waste are intercepted by screen filtration mechanism，Liquid enters into the activated carbon filter structure of lower section to carry out purifying for the third time，Metal ion in electroplating wastewater is absorbed by activated carbon filter structure，Plating water after three times purify enters bottom the second reaction tank，Period gathers its heavy metal ion of effluent monitoring and content of chemical substances by waste liquid acquisition port，Determine additive amount of medicament，And the need of carrying out next step reaction again，Plating water can directly be discharged after reaching purification standard by the plating water bottom the second reaction tank by waste liquid acquisition port，If the most up to standard, the medicament that can continue through in medicament cartridge reacts with plating water，Simultaneously when needs apply to electrolysis mode，Electrolyser can be utilized to make it be electrolysed with electroplating wastewater，Through the reaction with medicament、Cell reaction、The means such as filtration and absorption can carry out good purification to electroplating wastewater.
Benefit of the present utility model: 1. housing is divided into upper shell and lower house by dividing plate, dividing plate and upper shell junction formed can the first relief port of folding, add the reaction times between electroplating wastewater and medicament.2. the second reaction tank top is provided with screen filtration mechanism, activated carbon filter structure it is provided with below screen filtration mechanism, add the purification number of times of electroplating wastewater, screen filtration mechanism is placed in the top of activated carbon filter structure simultaneously, prevent solid matter to block activated carbon, thus ensure that the activated carbon adsorption effect to heavy metal out of electroplating wastewater ion.3. the first reaction tank and the second reaction tank outer wall are all provided with medicament cartridge, the electrolyser communicated with inside, add the mode of heavy-metal ion removal, and clean-up effect is more preferable.
Further, described housing is provided with fixture block, housing is connected at dividing plate the first relief port by fixture block, when needs medicament and waste water reaction, makes it be connected with dividing plate by mobile fixture block and can close the first relief port, when filtering after reaction completely, removing fixture block, the waste water through reaction enters screen filtration device by the first relief port, such arranges conveniently, fast, be conducive to improving work efficiency.
Further, described screen filtration mechanism includes drainage screen, bracing frame and gripper shoe, the side being detachably connected on lower house of gripper shoe, the second relief port is formed between this gripper shoe and opposite side of lower house, gripper shoe connects near one end of the second relief port has bracing frame, bracing frame to be wrapped with drainage screen, and the solid matter of filtration is beneficially stored in drainage screen by such being provided with, it is easy to the recovery in later stage, makes electroplating wastewater unification flow into active carbon filtering device from the second relief port simultaneously.
Further, described gripper shoe and lower house are by mortise-tenon joint, and described lower house is provided with the first passage block, and lower house is connected with gripper shoe by the first passage block, are so easy to be cleared up the solid matter in drainage screen by mobile first passage block.
Further, described activated carbon filter structure includes parcel net, activated carbon and bearing plate, the side being detachably connected on lower house of bearing plate, the 3rd relief port is formed between this bearing plate and opposite side of lower house, described parcel net coating active charcoal is placed on bearing plate, the electroplating wastewater whole process flow down from the first relief port is thus made to flow through activated carbon, sufficiently the heavy metal ion in electroplating wastewater can be adsorbed, simultaneously, parcel net can stop that while making activated carbon be fixed together solid matter covers activated carbon, ensure that the effective absorption property of activated carbon.
Further, described bearing plate and lower house are by mortise-tenon joint, and described lower house is provided with the second passage block, and lower house is connected with bearing plate by the second passage block, are so easy to be cleared up the activated carbon in parcel net by mobile second passage block.
Further, described gripper shoe port is hinged with baffle plate, and baffle plate free-falling posterior end is placed on activated carbon filter structure, contributes to preventing electroplating wastewater from flowing out between screen filtration mechanism and activated carbon filter structure, thus ensure that electroplating wastewater can pass through from activated carbon so that it is it is fully purified.
Further, the outer wall of described upper shell and lower house is equipped with and the heater communicated inside reaction tank, by using heater to heat electroplating wastewater so that it is reach the optimum temperature of reaction between electroplating wastewater and medicament, be conducive to thoroughly removing heavy metal ion, improve purification efficiency.
Further, the outer wall of described upper shell and lower house is equipped with and the waste liquid acquisition port communicated inside reaction tank, heavy metal ion and chemicals contained by electroplating wastewater in reaction tank can be monitored by waste liquid acquisition port, thus provide foundation for next step enforcement purified, improve purification efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of electroplating waste processing equipment of this utility model；
Fig. 2 is the structural representation of Tu1Zhong screen filtration mechanism；
Fig. 3 is activated carbon filter structure structural representation in Fig. 1.
Detailed description of the invention
Combine accompanying drawing below by detailed description of the invention this utility model is described in further detail:
Reference is enumerated: housing 1, dividing plate 2, fixture block 3, screen filtration mechanism 4, activated carbon filter structure 5, medicament cartridge 6, electrolyser 7, heater 8, waste liquid acquisition port 9, drainage screen 10, bracing frame 11, gripper shoe 12, baffle plate 13, first elapse block 14, parcel net 15, activated carbon 16, bearing plate the 17, second passage block 18.
A kind of electroplating waste processing equipment as shown in Figure 1, Figure 2 and Figure 3, including the reaction tank being made up of housing 1 and dividing plate 2, housing 1 is divided into upper shell and lower house by described dividing plate 2, and described dividing plate 2 is provided with the first relief port, and the first relief port is positioned at the connection side of dividing plate 2 and upper shell；Described housing 1 is provided with fixture block 3, and housing 1 is connected at dividing plate 2 first relief port by fixture block 3；Described lower house is provided with screen filtration mechanism 4 and activated carbon filter structure 5, and activated carbon filter structure 5 is positioned at the side, water outlet direction of screen filtration mechanism 4；Described screen filtration mechanism 4 includes drainage screen 10, bracing frame 11 and gripper shoe 12, the side being detachably connected on lower house of gripper shoe 12, the second relief port is formed between this gripper shoe 12 and opposite side of lower house, gripper shoe 12 connects near one end of the second relief port has bracing frame 11, support frame as described above 11 to be wrapped with drainage screen 10；Described gripper shoe 12 and lower house are by mortise-tenon joint, and described lower house is provided with the first passage block 14, and lower house is connected with gripper shoe 12 by the first passage block 14, and described gripper shoe 12 port is hinged with baffle plate 13；It is provided with activated carbon filter structure 5 below described screen filtration mechanism 4, described activated carbon filter structure 5 includes parcel net 15, activated carbon 16 and bearing plate 17, the side being detachably connected on lower house of bearing plate 17, the 3rd relief port is formed between this bearing plate 17 and opposite side of lower house, described parcel net 15 coating active charcoal 16 is placed on bearing plate 17, described bearing plate 17 passes through mortise-tenon joint with lower house, described lower house is provided with the second passage block 18, and lower house is connected with bearing plate 17 by the second passage block 18；Described first reaction tank and the second reaction tank outer wall are all provided with medicament cartridge 6, electrolyser 7, heater 8 and the waste liquid acquisition port 9 communicated with inside.
nullAfter electroplating wastewater enters the first reaction tank，The heavy metal ion contained according to it and chemical substance，Reacted by the electroplating wastewater in the medicament in medicament cartridge 6 and the first reaction tank，And can utilize in heater 8 electroplating wastewater is heated，It is allowed to reach optimal reaction temperature，Owing to fixture block 3 can carry out side-to-side movement within the case 1，After the electroplating wastewater in the first reaction tank reacts completely，Fixture block 3 is pulled away from dividing plate 2，Electroplating wastewater through purifying for the first time just can flow into screen filtration mechanism 4 by the first relief port to carry out purifying for the second time，Float in electroplating wastewater and some solid waste are intercepted by the drainage screen 10 arranged in gripper shoe 12 and bracing frame 11，Liquid can enter into the activated carbon filter structure 5 of lower section to carry out purifying for the third time，Owing to baffle plate 13 relies on gravity to fall voluntarily above activated carbon filter structure 5，The electroplating wastewater purified through second time can only be flow through in the activated carbon 16 from parcel net 15，Metal ion in electroplating wastewater is absorbed by activated carbon 16，Plating water after three times purify enters bottom the second reaction tank，Period can gather its heavy metal ion of effluent monitoring and content of chemical substances by waste liquid acquisition port 9，Determine additive amount of medicament，And the need of carrying out next step reaction again，Plating water can directly be discharged after reaching purification standard by the plating water bottom the second reaction tank by waste liquid acquisition port 9，If the most up to standard, the medicament that can continue through in medicament cartridge 6 reacts with plating water，Simultaneously when needs apply to electrolysis mode，Electrolyser 7 can be utilized to make it be electrolysed with electroplating wastewater，When intercepting the suspended thing got off in needing screen filtration mechanism 4 or solid waste is cleared up，Have only to can clear up by pulling the first passage block 14 to pull out screen filtration mechanism 4；When activated carbon 16 is cleared up by needs, it is only necessary to can clear up by pulling the second passage block 18 to pull out activated carbon filter structure 5, if it is necessary, reaction tank is divided into multiple little reaction tank by available dividing plate 2.
Above-described is only embodiment of the present utility model, and in scheme, the known general knowledge such as concrete structure and characteristic too much describes at this.Should be understood that; for a person skilled in the art, on the premise of without departing from this utility model structure, it is also possible to make some deformation and improvement; these also should be considered as protection domain of the present utility model, and these are all without affecting effect and the practical applicability that this utility model is implemented.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. records the content that may be used for explaining claim.
Claims (9)
1. an electroplating waste processing equipment, including the reaction tank being made up of housing and dividing plate, housing is divided into upper shell and lower house by described dividing plate, it is characterised in that: described dividing plate is provided with the first relief port, and the first relief port is positioned at the connection side of dividing plate and upper shell；Described lower house is provided with screen filtration mechanism and activated carbon filter structure, and activated carbon filter structure is positioned at the side, water outlet direction of screen filtration mechanism；It is equipped with on described upper shell and lower house and the medicament cartridge communicated inside reaction tank and electrolyser.
A kind of electroplating waste processing equipment the most according to claim 1, it is characterised in that: described housing is provided with fixture block, and housing is connected at dividing plate the first relief port by fixture block.
A kind of electroplating waste processing equipment the most according to claim 2, it is characterized in that: described screen filtration mechanism includes drainage screen, bracing frame and gripper shoe, the side being detachably connected on lower house of gripper shoe, the second relief port is formed between this gripper shoe and opposite side of lower house, gripper shoe connects near one end of the second relief port has bracing frame, support frame as described above to be wrapped with drainage screen.
A kind of electroplating waste processing equipment the most according to claim 3, it is characterised in that: described gripper shoe and lower house are by mortise-tenon joint, and described lower house is provided with the first passage block, and lower house is connected with gripper shoe by the first passage block.
A kind of electroplating waste processing equipment the most according to claim 4, it is characterized in that: described activated carbon filter structure includes parcel net, activated carbon and bearing plate, the side being detachably connected on lower house of bearing plate, forming the 3rd relief port between this bearing plate and opposite side of lower house, described parcel net coating active charcoal is placed on bearing plate.
A kind of electroplating waste processing equipment the most according to claim 5, it is characterised in that: described bearing plate and lower house are by mortise-tenon joint, and described lower house is provided with the second passage block, and lower house is connected with bearing plate by the second passage block.
A kind of electroplating waste processing equipment the most according to claim 6, it is characterised in that: described gripper shoe port is hinged with baffle plate.
A kind of electroplating waste processing equipment the most according to claim 7, it is characterised in that: the outer wall of described upper shell and lower house is equipped with and the heater communicated inside reaction tank.
A kind of electroplating waste processing equipment the most according to claim 8, it is characterised in that: the outer wall of described upper shell and lower house is equipped with and the waste liquid acquisition port communicated inside reaction tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620193282.6U CN205473104U (en) | 2016-03-14 | 2016-03-14 | Electroplating wastewater treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620193282.6U CN205473104U (en) | 2016-03-14 | 2016-03-14 | Electroplating wastewater treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205473104U true CN205473104U (en) | 2016-08-17 |
Family
ID=56656388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620193282.6U Withdrawn - After Issue CN205473104U (en) | 2016-03-14 | 2016-03-14 | Electroplating wastewater treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205473104U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105621760A (en) * | 2016-03-14 | 2016-06-01 | 遵义长征电器电力设备表面处理有限公司 | Electroplating wastewater treating device |
| CN108310826A (en) * | 2018-05-04 | 2018-07-24 | 苏州凯新分离科技有限公司 | A kind of wastewater treatment equipment for easily replacing filter frame with two-part |
-
2016
- 2016-03-14 CN CN201620193282.6U patent/CN205473104U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105621760A (en) * | 2016-03-14 | 2016-06-01 | 遵义长征电器电力设备表面处理有限公司 | Electroplating wastewater treating device |
| CN108310826A (en) * | 2018-05-04 | 2018-07-24 | 苏州凯新分离科技有限公司 | A kind of wastewater treatment equipment for easily replacing filter frame with two-part |
| CN108310826B (en) * | 2018-05-04 | 2023-12-22 | 苏州凯新分离科技有限公司 | Wastewater treatment device with two-section type filter frame easy to replace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160817 Effective date of abandoning: 20181204 |
|
| AV01 | Patent right actively abandoned |