CN208120887U - A kind of use for laboratory wastewater treatment equipment - Google Patents
A kind of use for laboratory wastewater treatment equipment Download PDFInfo
- Publication number
- CN208120887U CN208120887U CN201820347485.5U CN201820347485U CN208120887U CN 208120887 U CN208120887 U CN 208120887U CN 201820347485 U CN201820347485 U CN 201820347485U CN 208120887 U CN208120887 U CN 208120887U
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- Prior art keywords
- outlet pipe
- water inlet
- heavy metal
- strainer
- acid
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Abstract
The utility model discloses a kind of use for laboratory wastewater treatment equipments, including cesspool, the drainpipe at sewage pool bottom is connect by the first box cupling with the water inlet of S-shaped outlet pipe, the water outlet of S-shaped outlet pipe is connect by the second box cupling with the water inlet pipe at the top of filter element, the outlet pipe of filter element bottom is connect with the water inlet pipe at the top of acid-base neutralization unit, the outlet pipe of acid-base neutralization unit bottom is connect with the water inlet pipe of heavy metal precipitation unit bottom, the outlet pipe on heavy metal precipitation unit sidewall top and the water inlet pipe of sterilizer connect, the outlet pipe of sterilizer and the water inlet pipe of tank connect.When laboratory generates sewage, the sewage filtered through filter element enters acid-base neutralization unit, and when containing acidic materials in sewage, basic resin neutralizes acidic materials；Neutralized sewage enters heavy metal precipitation unit and removes heavy metal ion, and the sewage after removing heavy metal ion enters sterilizer and carries out disinfection, and sterilized water purification enters tank storage.
Description
Technical field
The utility model belongs to technical field of water treatment equipment, and in particular to a kind of use for laboratory wastewater treatment equipment.
Background technique
With the continuous increased enrollment of first, senior middle school and university, the surge and expanding economy of number of student, the progress of scientific research is changed
It is increasing to learn laboratory.Especially in recent ten years, all kinds of Establishment of chemistry laboratory quantity are continuously increased, and Lab region
Dispersion, relative to industrial enterprise, the wastewater discharge in laboratory is little, and pollution is easy to ignored.
Chemistry of laboratory waste water harm is very big, according to the type of major pollutants contained in waste water, laboratory can be given up
Moisture is laboratory inorganic wastewater and organic wastewater two major classes.Heavy metal, heavy metal complex, acid are mainly contained in inorganic wastewater
Alkali, cyanide, sulfide, halide ion and other inorganic ions etc.；Organic wastewater contains that there are commonly solvents, organic
Acid, ethers, Polychlorinated biphenyls, organic phosphorus compound, phenols, petroleum-type, oil substances.Laboratory waste water direct emission is to people
Domestic water and living environment be bound to cause pollution, and the imperfect wastewater treatment equipment in most of laboratory at present,
Therefore find it is a kind of it is economical, efficiently, energy-saving and environmental protection, applicable laboratory waste water treatment device have been very urgent.
Utility model content
For the shortcomings of the prior art, the utility model provides a kind of use for laboratory wastewater treatment equipment.
The purpose of this utility model is realized in the following manner：
The drainpipe of a kind of use for laboratory wastewater treatment equipment, including cesspool, sewage pool bottom passes through the first box cupling and S
The water inlet of shape outlet pipe connects, and the water outlet of S-shaped outlet pipe is connect by the second box cupling with the water inlet pipe at the top of filter element,
The outlet pipe of filter element bottom is connect with the water inlet pipe at the top of acid-base neutralization unit, the outlet pipe of acid-base neutralization unit bottom with
The water inlet pipe of heavy metal precipitation unit bottom connects, the outlet pipe on heavy metal precipitation unit sidewall top and the water inlet pipe of sterilizer
Connection, the outlet pipe of sterilizer and the water inlet pipe of tank connect；
The filter element includes filtering ponds, is provided with strainer, walnut shell filtering material layer, active carbon in filtering ponds from top to bottom
Layer and ceramic wafer, strainer are obliquely installed, and the least significant end of strainer is arranged refuse collecting bucket, on filtering ponds side wall with refuse collecting bucket phase
Corresponding position is provided with sundries cleaning door, and the corresponding position of the most significant end of strainer is provided with strainer cleaning plant；
The acid-base neutralization unit includes acid-base neutralization pond, if being provided with dried resin apparatus for placing in acid-base neutralization pond, tree
Rouge apparatus for placing is obliquely installed, and the most significant end and least significant end of resin apparatus for placing both pass through the outer wall in acid-base neutralization pond, and resin is contained
The most significant end and least significant end for putting device are socketed with rubber stopper, and from top to bottom successively acidic resins are filled at interval to resin apparatus for placing
And basic resin；
The heavy metal precipitation unit includes sedimentation basin and kit, and kit is connected to sedimentation basin by discharge nozzle, medicine
Agent box is provided with sodium metasilicate powder, and solenoid valve is provided on discharge nozzle, liquid level sensor, solenoid valve and liquid are provided in sedimentation basin
For level sensor with heavy metal precipitation unit monolithic mechatronics, heavy metal precipitation unit further includes agitating device；Sedimentation basin side
The outlet pipe on wall top is extended into sedimentation basin away from precipitating bottom of pond portion 30cm.
The strainer cleaning plant includes the cylinder being arranged in filtering ponds inside sidewalls, the telescopic rod end setting of cylinder
There is hairbrush, hairbrush is contacted with strainer, and telescopic rod and the strainer of cylinder are arranged in parallel.
The strainer and the angle of horizontal direction are 10-15 °.
The resin apparatus for placing includes upper plane and lower plane parallel to each other, is offered on upper plane and lower plane
Through-hole, the aperture of through-hole are less than the diameter of acidic resins and basic resin.
The upper plane and lower plane and the angle of horizontal direction of the resin apparatus for placing are 10-15 °.
The agitating device includes the agitating paddle that the motor of precipitating bottom of pond portion is arranged in and is arranged in sedimentation basin, agitating paddle
It is driven by motor, motor and heavy metal precipitation unit monolithic mechatronics.
The acidic resins are sulfonic acid ion exchange resin, and basic resin is quaternary ammonium type strong alkalinity anion exchange tree
Rouge.
Compared with the existing technology, the utility model has the advantages that：When laboratory generates sewage, sewage passes through
S-shaped outlet pipe enters filter element, and the strainer in filter element can stay the bulky grain solid in sewage, walnut shell filter
The bed of material can remove the oily matter in sewage, and active carbon can adsorb little particle, deodorization and discoloration, and ceramic wafer can carry out sewage
Filtering removes part impurity particle；The sewage filtered through filter element enters acid-base neutralization unit, when containing acid in sewage
When matter, basic resin neutralizes acidic materials, and when containing alkaline matter in sewage, acidic resins carry out alkaline matter
It neutralizes；Neutralized sewage enters heavy metal precipitation unit and removes heavy metal ion, and the sewage after removing heavy metal ion enters
Sterilizer carries out disinfection, and sterilized water purification enters tank storage, and tank can be connect with flush toilets pipeline, and water purification is used for
Rinsing closestool or tank can connect with surface irrigation system, and water purification is used for surface irrigation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the enlarged drawing of part A in Fig. 1.
Fig. 3 is the structural schematic diagram of acid-base neutralization unit.
Fig. 4 is the top view of resin apparatus for placing.
Wherein, 1 is cesspool；2 be the first box cupling；3 be S-shaped outlet pipe；4 be the second box cupling；5 be filter element；501 are
Filtering ponds；502 be strainer；503 be walnut shell filtering material layer；504 be active carbon layer；505 be ceramic wafer；506 be refuse collecting bucket；
507 be strainer cleaning plant；5071 be cylinder；5072 be hairbrush；508 be sundries cleaning door；6 be acid-base neutralization unit；601 are
Acid-base neutralization pond；602 be resin apparatus for placing；6021 be upper plane；6022 be lower plane；6023 be through-hole；603 be rubber
Plug；7 be heavy metal precipitation unit；701 be sedimentation basin；702 be kit；703 be discharge nozzle；704 be solenoid valve；705 be liquid
Level sensor；706 be heavy metal precipitation unit single-chip microcontroller；707 be agitating device；7071 be motor；7072 be agitating paddle；8 are
Sterilizer；9 be tank.
Specific embodiment
The model of sulfonic acid ion exchange resin：001 × 7,004 × 7,001 × 8,001 × 7 × 7, D061 etc., season
The model of ammonium type strong-base anion-exchange resin：D261, A101, A201,611 etc. are commercially available.
As shown in attached drawing 1-4, a kind of use for laboratory wastewater treatment equipment, including cesspool 1, the draining of 1 bottom of pond of cesspool
Pipe is connect by the first box cupling 2 with the water inlet of S-shaped outlet pipe 3, and the water outlet of S-shaped outlet pipe 3 passes through the second box cupling 4 and filtering
The outlet pipe of the water inlet pipe connection at 5 top of unit, 5 bottom of filter element is connect with the water inlet pipe at 6 top of acid-base neutralization unit, acid
The outlet pipe of 6 bottom of alkali neutralization unit is connect with the water inlet pipe of 7 bottom of heavy metal precipitation unit by water pump and pipeline, and water pump will
In sewage transport to heavy metal precipitation unit 7 in acid-base neutralization unit 6, the outlet pipe of 7 side wall upper part of heavy metal precipitation unit
Water pump is crossed with the water inlet pipe of sterilizer 8 and pipeline is connect, and outlet pipe is extended into heavy metal precipitation unit 7 away from sedimentation basin 701
At the 30cm of bottom, in order to avoid the heavy metal precipitation of 701 bottom of sedimentation basin is taken away, water pump is by the sewage in heavy metal precipitation unit 7
It is transported in sterilizer 8, the outlet pipe of sterilizer 8 is connect with the water inlet pipe of tank 9；
S-shaped outlet pipe 3 have positioned at downside curved and positioned at upside the return trap of ponding, ponding it is curved be U-bend, in can
Certain water is retained, return trap night is sealed, can prevent gas with foreign flavor from flowing back；Return trap be it is inverted U-shaped curved, primarily to changing
Become water (flow) direction, convenient for connecting with the water inlet pipe at 5 top of filter element.
Filter element 5 includes filtering ponds 501, is provided with strainer 502, walnut shell filtering material layer from top to bottom in filtering ponds 501
503, active carbon layer 504 and ceramic wafer 505, strainer 502 are obliquely installed, and refuse collecting bucket 506 is arranged in the least significant end of strainer 502,
Position corresponding with refuse collecting bucket 506 is provided with sundries cleaning door 508, the most significant end of strainer 502 on 501 side wall of filtering ponds
Corresponding position is provided with strainer cleaning plant 507；
Strainer 502 can stay the bulky grain solid in sewage, and walnut shell filtering material layer 503 is that inside is filled with mountain core
The box of the permeable water of peach shell filtrate, pecan shell filtrate toughness is big, and wear-resistant pressure-resistant, adsorption capacity are strong, oil resistant leaching, do not tie
Block, without putrefaction, stable chemical performance do not dissolve in soda acid, and absorption retaining power is strong, can remove the oily matter in sewage,
Active carbon layer 504 is the active carbon being placed on 505 upper surface of ceramic wafer, and active carbon can adsorb little particle, deodorization and discoloration,
It is porous structure inside ceramic wafer 505, sewage can be also filtered, removes part impurity particle；
After strainer 502 works long hours, the plug filters such as fibrous web being mingled in partial particulate or sewage hole is had,
The filter efficiency of strainer 502 is reduced, at this point, opening strainer cleaning plant 507, clears up it to miscellaneous tamper in filter hole
In object collection bucket 506, periodically the sundries in refuse collecting bucket 506 is cleaned out by sundries cleaning door 508.
Acid-base neutralization unit 6 includes acid-base neutralization pond 601, if being provided with dried resin apparatus for placing in acid-base neutralization pond 601
602, resin apparatus for placing 602 is obliquely installed, and the most significant end and least significant end of resin apparatus for placing 602 both pass through acid-base neutralization pond
601 outer wall, the most significant end and least significant end of resin apparatus for placing 602 are socketed with rubber stopper 603, resin apparatus for placing 602 by
Successively acidic resins and basic resin are filled in interval under；
Into resin apparatus for placing 602 when potting resin, the least significant end of resin apparatus for placing 602 is blocked, is held from resin
Resin is filled at the most significant end of device 602 in potting resin to resin apparatus for placing 602, then blocks resin with rubber stopper 603
The most significant end of apparatus for placing 602；When containing acidic materials in sewage, basic resin neutralizes acidic materials, when
When containing alkaline matter in sewage, acidic resins neutralize alkaline matter；Resin apparatus for placing 602 from top to bottom successively between
Refer to every filling acidic resins and basic resin：Acidic resins are filled in first resin apparatus for placing 602, second resin is contained
It puts and fills basic resin in device 602, fill acidic resins in third resin apparatus for placing 602, the 4th resin holds dress
It sets and fills basic resin ... in 602；Resin after a period of use, can take out from the least significant end of resin apparatus for placing 602, into
Row regeneration, the resin after regeneration are reusable.
Heavy metal precipitation unit 7 includes sedimentation basin 701 and kit 702, and kit 702 and sedimentation basin 701 pass through discharging
Pipe 703 is connected to, and kit 702 is provided with sodium metasilicate powder, solenoid valve 704 is provided on discharge nozzle 703, is set in sedimentation basin 701
It is equipped with liquid level sensor 705, solenoid valve 704 and liquid level sensor 705 are electrically connected with heavy metal precipitation unit single-chip microcontroller 706,
Heavy metal precipitation unit 7 further includes agitating device 707；The outlet pipe of 701 side wall upper part of sedimentation basin is extended into sedimentation basin 701
At 701 bottom 30cm of sedimentation basin.
Liquid level in 705 real-time monitoring sedimentation basin 701 of liquid level sensor, and send liquid level information to heavy metal precipitation list
First single-chip microcontroller 706, when liquid level sensor 705 detects that the liquid level in sedimentation basin 701 reaches setting value, heavy metal precipitation unit
Single-chip microcontroller 706 controls the opening of solenoid valve 704 and closes after a certain period of time, and the sodium metasilicate powder in quantitative kit 702 enters
In sedimentation basin 701, when solenoid valve 704 is closed, heavy metal precipitation unit single-chip microcontroller 706 controls the unlatching of agitating device 707 simultaneously,
Sewage in sedimentation basin 701 is stirred, stops stirring after stirring a period of time；After sodium metasilicate powder enters sedimentation basin 701
Hydrolysis generates colloid, so that the heavy metal ion in sewage is deposited to bottom of pond, 701 sidewall bottom of sedimentation basin together with colloid
Outlet pipe is offered, is periodically vented the sewage in sedimentation basin 701 from the outlet pipe of 701 sidewall bottom of sedimentation basin, to sink
Sedimentation basin 701 is discharged in the heavy metal ion and colloid of 701 bottom of shallow lake pond；It is released from the outlet pipe of 701 sidewall bottom of sedimentation basin
Water collect, transfer to special heavy mental treatment part to handle.
The strainer cleaning plant 507 includes the cylinder 5071 being arranged in 501 inside sidewalls of filtering ponds, cylinder 5071
Telescopic rod end is provided with hairbrush 5072, and hairbrush 5072 is contacted with strainer 502, and the telescopic rod of cylinder 5071 is parallel with strainer 502
Setting.
When needing to clear up strainer 502, open cylinder 5071, hairbrush 5072 with cylinder 5071 telescopic rod back and forth
It is mobile, clear up strainer 502.
The strainer 502 and the angle of horizontal direction are 10-15 °.
The resin apparatus for placing 602 includes upper plane 6021 and lower plane 6022 parallel to each other, upper 6021 He of plane
Through-hole 6023 is offered on lower plane 6022, the aperture of through-hole 6023 is less than the diameter of acidic resins and basic resin.
The upper plane 6021 and lower plane 6022 of the resin apparatus for placing 602 and the angle of horizontal direction are 10-
15°。
The agitating device 707 includes that the motor 7071 of 701 bottom of sedimentation basin is arranged in and is arranged in sedimentation basin 701
Agitating paddle 7072, agitating paddle 7072 are driven by motor 7071, and motor 7071 is electrically connected with heavy metal precipitation unit single-chip microcontroller 706.
When solenoid valve 704 is closed, heavy metal precipitation unit single-chip microcontroller 706 controls the unlatching of motor 7011, motor simultaneously
7011 drive agitating paddle 7012 to rotate, and are stirred to the sewage in sedimentation basin 701, stop stirring after stirring a period of time.
The acidic resins are sulfonic acid ion exchange resin, and basic resin is quaternary ammonium type strong alkalinity anion exchange tree
Rouge.
The course of work of the utility model is as follows：Sewage in cesspool 1 by S-shaped outlet pipe 3 enter filter element 5 into
Row filtering, except sundries, the sewage after filtering such as size particles, pigment, fibrous web contained in decontaminated water enter soda acid
Neutralisation unit 6, the acidic resins and basic resin in acid-base neutralization unit 6 are except alkali or acid contained in decontaminated water, after neutralized
Sewage enter heavy metal precipitation unit 7, the sewage after removing heavy metal ion enters sterilizer 8 and carries out disinfection, sterilized
Water purification enters the storage of tank 9, and tank 9 can be connect with flush toilets pipeline, and water purification is for rinsing closestool or tank 9
It can be connect with surface irrigation system, water purification is used for surface irrigation.
Above-described is only preferred embodiments of the present invention, it is noted that for those skilled in the art
For, under the premise of not departing from the utility model general idea, several changes and improvements can also be made, these also should be considered as
The protection scope of the utility model.
Claims (7)
1. a kind of use for laboratory wastewater treatment equipment, including cesspool（1）, it is characterised in that：Cesspool（1）The drainpipe of bottom of pond
Pass through the first box cupling（2）With S-shaped outlet pipe（3）Water inlet connection, S-shaped outlet pipe（3）Water outlet pass through the second box cupling（4）
With filter element（5）The water inlet pipe at top connects, filter element（5）The outlet pipe and acid-base neutralization unit of bottom（6）Top
Water inlet pipe connection, acid-base neutralization unit（6）The outlet pipe and heavy metal precipitation unit of bottom（7）The water inlet pipe of bottom connects, weight
Precipitated metal unit（7）The outlet pipe and sterilizer of side wall upper part（8）Water inlet pipe connection, sterilizer（8）Outlet pipe and storage
Pond（9）Water inlet pipe connection；
The filter element（5）Including filtering ponds（501）, filtering ponds（501）It is inside provided with strainer from top to bottom（502）, walnut
Shell filter material layer（503）, active carbon layer（504）And ceramic wafer（505）, strainer（502）It is obliquely installed, strainer（502）Least significant end
Refuse collecting bucket is set（506）, filtering ponds（501）On side wall with refuse collecting bucket（506）Corresponding position is provided with sundries
Cleaning door（508）, strainer（502）The corresponding position of most significant end be provided with strainer cleaning plant（507）；
The acid-base neutralization unit（6）Including acid-base neutralization pond（601）, acid-base neutralization pond（601）If being inside provided with dried resin Sheng
Put device（602）, resin apparatus for placing（602）It is obliquely installed, resin apparatus for placing（602）Most significant end and least significant end both pass through
Acid-base neutralization pond（601）Outer wall, resin apparatus for placing（602）Most significant end and least significant end be socketed with rubber stopper（603）, tree
Rouge apparatus for placing（602）From top to bottom successively acidic resins and basic resin are filled in interval；
The heavy metal precipitation unit（7）Including sedimentation basin（701）And kit（702）, kit（702）With sedimentation basin
（701）Pass through discharge nozzle（703）Connection, kit（702）It is provided with sodium metasilicate powder, discharge nozzle（703）On be provided with electromagnetism
Valve（704）, sedimentation basin（701）Inside it is provided with liquid level sensor（705）, solenoid valve（704）And liquid level sensor（705）And again
Precipitated metal unit single-chip microcontroller（706）Electrical connection, heavy metal precipitation unit（7）It further include agitating device（707）；Sedimentation basin
（701）The outlet pipe of side wall upper part is to sedimentation basin（701）It inside extends to away from sedimentation basin（701）At the 30cm of bottom.
2. use for laboratory wastewater treatment equipment according to claim 1, it is characterised in that：The strainer cleaning plant
（507）Including being arranged in filtering ponds（501）Cylinder in inside sidewalls（5071）, cylinder（5071）Telescopic rod end be provided with
Hairbrush（5072）, hairbrush（5072）With strainer（502）Contact, cylinder（5071）Telescopic rod and strainer（502）It is arranged in parallel.
3. use for laboratory wastewater treatment equipment according to claim 1, it is characterised in that：The strainer（502）With level
The angle in direction is 10-15 °.
4. use for laboratory wastewater treatment equipment according to claim 1, it is characterised in that：The resin apparatus for placing
（602）Including upper plane parallel to each other（6021）And lower plane（6022）, upper plane（6021）And lower plane（6022）It is upper equal
Offer through-hole（6023）, through-hole（6023）Aperture be less than acidic resins and basic resin diameter.
5. use for laboratory wastewater treatment equipment according to claim 4, it is characterised in that：The resin apparatus for placing
（602）Upper plane（6021）And lower plane（6022）Angle with horizontal direction is 10-15 °.
6. use for laboratory wastewater treatment equipment according to claim 1, it is characterised in that：The agitating device（707）Packet
It includes and is arranged in sedimentation basin（701）The motor of bottom（7071）With setting in sedimentation basin（701）Interior agitating paddle（7072）, agitating paddle
（7072）By motor（7071）Driving, motor（7071）With heavy metal precipitation unit single-chip microcontroller（706）Electrical connection.
7. use for laboratory wastewater treatment equipment according to claim 1, it is characterised in that：The acidic resins are sulfonic acid type
Cation exchange resin, basic resin are quaternary ammonium type anion exchange resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820347485.5U CN208120887U (en) | 2018-03-14 | 2018-03-14 | A kind of use for laboratory wastewater treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820347485.5U CN208120887U (en) | 2018-03-14 | 2018-03-14 | A kind of use for laboratory wastewater treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208120887U true CN208120887U (en) | 2018-11-20 |
Family
ID=64198673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820347485.5U Expired - Fee Related CN208120887U (en) | 2018-03-14 | 2018-03-14 | A kind of use for laboratory wastewater treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208120887U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516579A (en) * | 2018-12-27 | 2019-03-26 | 陈文英 | A kind of automated sewage processing unit for recycling precipitate in sewage |
| CN110092509A (en) * | 2019-06-03 | 2019-08-06 | 陕西宇鑫洁净工程有限公司 | A kind of intensive style laboratory waste processing system |
| CN110498540A (en) * | 2019-09-29 | 2019-11-26 | 芜湖耀迪环保科技有限公司 | A kind of heavy metal wastewater treatment apparatus |
| CN113045074A (en) * | 2021-03-22 | 2021-06-29 | 李玲群 | Digestion device based on impurity type |
-
2018
- 2018-03-14 CN CN201820347485.5U patent/CN208120887U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516579A (en) * | 2018-12-27 | 2019-03-26 | 陈文英 | A kind of automated sewage processing unit for recycling precipitate in sewage |
| CN109516579B (en) * | 2018-12-27 | 2019-11-22 | 乐清市华尊电气有限公司 | A kind of automated sewage processing unit for recycling precipitate in sewage |
| CN110092509A (en) * | 2019-06-03 | 2019-08-06 | 陕西宇鑫洁净工程有限公司 | A kind of intensive style laboratory waste processing system |
| CN110092509B (en) * | 2019-06-03 | 2021-12-10 | 陕西宇鑫洁净工程有限公司 | Intensive laboratory waste treatment system |
| CN110498540A (en) * | 2019-09-29 | 2019-11-26 | 芜湖耀迪环保科技有限公司 | A kind of heavy metal wastewater treatment apparatus |
| CN113045074A (en) * | 2021-03-22 | 2021-06-29 | 李玲群 | Digestion device based on impurity type |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181120 Termination date: 20190314 |