CN113649406A - Slurry reaction tank for soil remediation - Google Patents
Slurry reaction tank for soil remediation Download PDFInfo
- Publication number
- CN113649406A CN113649406A CN202110850777.7A CN202110850777A CN113649406A CN 113649406 A CN113649406 A CN 113649406A CN 202110850777 A CN202110850777 A CN 202110850777A CN 113649406 A CN113649406 A CN 113649406A
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- Prior art keywords
- reaction
- reaction tank
- pipe
- tank
- soil remediation
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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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- 239000002689 soil Substances 0.000 title claims abstract description 29
- 238000005067 remediation Methods 0.000 title claims abstract description 21
- 239000002002 slurry Substances 0.000 title abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 54
- 238000003756 stirring Methods 0.000 claims abstract description 22
- 238000007599 discharging Methods 0.000 claims description 15
- 230000001154 acute effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000003814 drug Substances 0.000 abstract description 21
- 238000011010 flushing procedure Methods 0.000 description 5
- 238000002386 leaching Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000003802 soil pollutant Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a slurry reaction tank for soil remediation, which structurally comprises at least two reaction chambers, a standby reaction tank, a stirring device, a feeding pipe and a plurality of dosing pipes, wherein an overflow port is also arranged between the reaction chambers; the charging pipe is provided with a plurality of charging openings which correspond to the reaction chambers one by one; the dosing pipe is provided with a plurality of dosing ports which are in one-to-one correspondence with the reaction chambers; an overflow pipe and a communicating pipe are connected between the standby reaction tank and one of the reaction chambers, the overflow pipe is close to the upper ends of the reaction chambers and the standby reaction tank and is lower than an overflow port, and a first valve is installed on the communicating pipe. According to the invention, through the arrangement of the standby reaction tank, redundant materials can be placed into the standby reaction tank, and after the materials in the reaction chamber are treated, the materials in the standby reaction tank are introduced into the reaction chamber, so that the volume of the reaction chamber is expanded; the stirring device is arranged to fully mix the medicament and the materials for reaction, so that the treatment quality is improved.
Description
Technical Field
The invention relates to the field of soil remediation equipment, in particular to a slurry reaction tank for soil remediation.
Background
At present, the heavy metal soil remediation is treated by adopting a soil leaching technology, wherein the soil leaching technology is a technology for dissolving, separating and treating pollutants from soil by injecting a chemical solvent capable of promoting dissolution or migration of soil pollutants into the polluted soil. Adding water into soil to prepare slurry, then adding a medicament into the slurry to react, wherein the reaction is generally carried out in a container, and after a period of reaction, the separation of water and soil is realized through a filter press.
Since it takes a while for the agent to participate in the reaction, a plurality of reaction cells/reaction tanks are generally provided. In the prior art, for example, the invention patent with the application number of CN201510822188.2 discloses an engineering multistage screening type ectopic soil leaching restoration method, and particularly discloses a stable integrated device used in the engineering multistage screening type ectopic soil leaching restoration method, which comprises a reaction tank stirrer, a medicament storage tank stirrer, a first reaction tank, a second reaction tank, a third reaction tank, a fourth reaction tank, a first medicament storage tank, a second medicament storage tank and a metering pump, wherein the first medicament storage tank and the second medicament storage tank are arranged in parallel at the middle position, the first reaction tank and the second reaction tank are arranged in parallel at the outer side of the first medicament storage tank, the third reaction tank and the fourth reaction tank are arranged in parallel at the outer side of the second medicament storage tank, the first reaction tank, the second reaction tank, the third reaction tank and the fourth reaction tank are respectively provided with a reaction tank stirrer, the first reaction tank and the second reaction tank are respectively provided with a medicament storage tank stirrer, a metering pump is arranged in each of the first medicament storage tank and the second medicament storage tank.
However, the existing reaction tank/reaction tank has the following problems:
1. sludge deposits at the bottom of the reaction tank or the reaction tank to block the pipeline;
2. the reagents in the reaction tank are not uniformly mixed, so that the reaction can not be completed within the planned time, and the quality of the treated reagents does not reach the standard;
3. the reaction tank/reaction tank has a limited volume and excess material cannot be treated.
Disclosure of Invention
In order to solve the technical problems, the invention provides a slurry reaction tank for soil remediation, and the technical purpose of the invention is realized by the following technical scheme:
a mud reaction tank for soil remediation structurally comprises at least two reaction chambers, a standby reaction tank, a stirring device, a feeding pipe and a plurality of dosing pipes, wherein an overflow port is formed between every two adjacent reaction chambers and is communicated with the two adjacent reaction chambers, and after one reaction chamber is full, the reaction chamber can flow to the adjacent reaction chamber, so that materials in the reaction chambers are prevented from overflowing out of the reaction chambers; the stirring devices are arranged in the reaction chamber and the standby reaction tank, and the liquid medicine in the reaction chamber is fully reacted with the materials through the stirring devices; the charging pipe is provided with a plurality of charging openings which correspond to the reaction chambers one by one; the dosing pipe is provided with a plurality of dosing ports which are in one-to-one correspondence with the reaction chambers; an overflow pipe and a communicating pipe are connected between the standby reaction tank and one of the reaction chambers, the overflow pipe and the communicating pipe are respectively connected between the reaction chambers and the standby reaction tank, the overflow pipe is close to the upper ends of the reaction chambers and the standby reaction tank and is lower than an overflow port, and a material connected with the overflow pipe flows into the standby reaction tank through the overflow pipe without flowing from the reaction chamber connected with the overflow pipe to the adjacent reaction chamber; the communicating pipe is close to the bottom of the reaction chamber and the bottom of the standby reaction tank, and a first valve is arranged on the communicating pipe.
Furthermore, the stirring device comprises a driving motor, a paddle shaft and paddles, wherein two layers of paddles are arranged in the length direction of the paddle shaft, and the driving motor is in transmission connection with the paddle shaft.
Furthermore, the paddle is of a rectangular structure and comprises a long side and a short side, the short side of one end of the paddle is fixed on the paddle shaft, and the other end of the paddle is of a convex structure; each layer comprises two blades, and the two blades on the same layer are positioned on two sides of the paddle shaft; the short sides of the blades form acute included angles with the horizontal plane, and the short sides of the two blades on the same layer are arranged in a crossed mode. The blades are arranged, and the rectangular blades are obliquely arranged, so that the liquid medicine and the materials are fully mixed, and the situation that corners in the reaction chamber cannot be stirred is avoided; the convex structure can reduce the required power and reduce the cost on the basis of increasing the length of the blade.
Furthermore, the included angle between the short side of the paddle and the horizontal plane is 22 degrees, and the paddle is 20-30cm away from the bottom of the reaction chamber.
Furthermore, a discharge hole is formed in one side of the bottom of the reaction chamber, a discharge pipe is arranged on one side of the reaction chamber, the discharge hole is connected with one end of the discharge pipe respectively, and a second valve is further arranged at the discharge hole.
Furthermore, the other end of the discharge pipe is also connected with a main material pump interface and an auxiliary material pump interface, and a third valve is respectively arranged at the main material pump interface and the auxiliary material pump interface; the height that the discharging pipe is connected the one end of main material pump interface and vice material pump interface is higher than the height that the discharging pipe is connected discharge gate one end, and the height drop of discharging pipe can reduce grit etc. and get into main material pump or vice material pump, reduces the wearing and tearing to equipment.
Furthermore, a back-flushing pipe is further arranged at one end, close to the main material pump connector and the auxiliary material pump connector, of the discharging pipe, the discharging pipe can be flushed through the back-flushing pipe, and material deposition and blockage of the discharging pipe in the discharging pipe are avoided.
Furthermore, a dredging channel is further arranged on the discharging pipe at one end, close to the discharging port, of the discharging pipe, a fourth valve is further arranged at the dredging channel, and once the discharging pipe is blocked, the discharging pipe can be dredged through the dredging channel.
Further, the dosing pipe is respectively connected with a dosing tank, the dosing tank wraps the tank body, the stirring pump and the metering pump, the stirring pump is installed at the upper end of the tank body, and the metering pump is connected with the dosing pipe.
Furthermore, the upper end of the reaction chamber is also provided with an observation platform, the upper end of the reaction chamber is provided with an observation window, and the observation window is positioned on one side of the observation platform.
Compared with the prior art, the invention has the beneficial effects that:
1. through the arrangement of the standby reaction tank, redundant materials can be placed into the standby reaction tank, and the materials in the standby reaction tank are introduced into the reaction chamber after the materials in the reaction chamber are treated; the volume of the reaction chamber is expanded;
2. the double-layer blades are arranged, the end parts of the blades are provided with the convex structures, the length of the blades is prolonged, the required power is prevented from being too high, the rectangular blades enable the inner stirring in the reaction chamber to be more sufficient, and the generation of dead angles in the reaction chamber is reduced;
3. the dredging channel and the back flushing pipe are arranged to avoid the blockage of the discharge pipe, so that the dredging channel and the back flushing pipe can be conveniently dredged even if the blockage occurs.
Drawings
FIG. 1 is a schematic diagram of a slurry reaction tank for soil remediation according to the present invention.
FIG. 2 is a schematic view of the stirring apparatus of the present invention.
FIG. 3 is a schematic view of the tapping pipe arrangement according to the invention.
Fig. 4 is a schematic view of the structure of the medicine adding pot in the invention.
Fig. 5 is a partial schematic view of a dosing tube according to the present invention.
Fig. 6 is a schematic view of a blade according to the invention.
In the figure, 1, a reaction chamber; 2. a standby reaction tank; 3. a feed tube; 4. a medicine feeding pipe; 5. an overflow port; 6. a feed inlet; 7. a drive motor; 8. a paddle; 9. a paddle shaft; 10. a first valve; 11. a second valve; 12. a third valve; 13. a fourth valve; 14. an overflow pipe; 15. a communicating pipe; 16. a discharge pipe; 17. a main material pump interface; 18. an auxiliary material pump interface; 19. a backwash pipe; 20. dredging the channel; 21. a tank body; 22. a stirring pump; 23. a metering pump; 24. an observation platform; 25. an observation window; 26. a discharge port; 27. and a medicine adding port.
Detailed Description
The technical solution of the present invention is further described below with reference to specific embodiments:
the utility model provides a mud reaction tank for soil remediation, includes two at least reaction chambers 1, a reserve reaction tank 2, agitating unit, filling tube 3, a plurality of dosing tube 4, takes three reaction chambers 1 as the example in this embodiment, as shown in figure 1, reaction chamber 1 is square, is equipped with overflow mouth 5 between two adjacent reaction chambers 1, communicates through overflow mouth 5 between two reaction chambers 1, and overflow mouth 5 is close to the upper end position setting of reaction chamber 1. The stirring device is arranged in the reaction chamber 1, and the materials in the reaction chamber 1 are stirred by the stirring device; the filling tube 3 is used for adding the material to the reacting chamber 1 in, and the material that adds is mud in soil remediation, sets up 3 charge door 6 on the filling tube 3, adds the material to three reacting chamber 1 respectively through three charge door 6, for the ease of control, still installs the valve on every charge door 6, and which reacting chamber needs to add the material then opens the valve of the charge door that corresponds, feeds in to the reacting chamber that corresponds through this charge door.
One side of the third reaction chamber 1 is also provided with a standby reaction tank 2, an overflow pipe 14 and a communicating pipe 15 are connected between the standby reaction tank 2 and the reaction chamber 1, the overflow pipe 14 is connected at a position close to the upper ends of the reaction chamber 1 and the standby reaction tank 2, the height requirement of the overflow pipe 5 is lower than that of the overflow port 5, and redundant materials in the third reaction chamber are ensured to enter the standby reaction tank and cannot enter the adjacent reaction chamber. The communicating pipe 15 is close to the bottom of the reaction chamber 1 and the standby reaction tank 2, the first valve 10 is installed on the communicating pipe 15, the first valve 10 is in a closed state, and the first valve 10 is opened unless the materials in the standby reaction tank 2 need to flow to a third reaction chamber.
As shown in fig. 2, the stirring device comprises a driving motor 7, blades 8 and a paddle shaft 9, wherein the driving motor 7 is a stirring motor, the stirring motor is installed in the middle of the upper ends of the reaction chamber 1 and the standby reaction tank 2, the paddle shaft 9 is installed inside the reaction chamber 1 and the standby reaction tank 2, the paddle shaft 9 is vertically arranged, the stirring motor drives the paddle shaft 9 to rotate, and the blades 8 are installed on the paddle shaft 9; the paddle includes two-layerly, and every layer has two paddle 8, and paddle 8 is the rectangle, and the tip of paddle 8 is protruding type structure, has increased paddle 8's length through protruding type structure, avoids 8 length increases of paddle to bring agitator motor power to increase too much problem simultaneously. The long sides of the rectangular paddles are used as a reference, the included angles between the short sides of the rectangular paddles and the horizontal plane are acute angles, the two paddles on the same layer are arranged on two sides of the paddle shaft, and the short sides of the paddles on the two sides are crossed relatively. Specifically, as shown in FIG. 6, the included angle between the short side of the paddle and the horizontal plane is 22 degrees, and the distance between the lowest paddle and the bottom of the reaction chamber is 20-30 cm.
Further, a discharge hole 26 is formed in one side of the bottom of the reaction chamber 1, a discharge pipe 16 is further arranged on one side of the reaction chamber 1, as shown in fig. 3, the discharge hole 26 is connected with one end of the discharge pipe 16, and a second valve 11 is further arranged at the discharge hole 26; the other end of the discharge pipe 16 is also connected with a main material pump connector 17 and an auxiliary material pump connector 18, the main material pump connector 17 and the auxiliary material pump connector 18 are respectively provided with a third valve 12, the main material pump connector 17 and the auxiliary material pump connector 18 are respectively connected with a material pump, one material pump can be used when the material pump is used, and the other material pump is used for standby; the height of one end of the discharge pipe 16, which is connected with the main material pump connector 17 and the auxiliary material pump connector 18, is higher than that of one end of the discharge pipe 16, which is connected with the discharge hole 26.
In order to avoid the blockage of the discharge pipe 16, a back flushing pipe 19 is further arranged at one end, close to the main material pump connector 17 and the auxiliary material pump connector 18, of the discharge pipe 16, a dredging channel 20 is further arranged on the discharge pipe 16 at one end, close to the discharge hole 26, of the discharge pipe 16, and a fourth valve 13 is further arranged at the dredging channel 20.
Three dosing ports 27 are arranged on each dosing pipe, and the three dosing ports 27 are used for respectively dosing the three reaction chambers 1, as shown in figures 1, 2, 3 and 5, and each dosing pipe 4 is used for respectively conveying a medicament; every adds pencil 4 and connects a jar of adding medicine respectively, adds the medicine jar structure as shown in figure 4, including a jar body 21, agitator pump 22, measuring pump 23, and agitator pump 22 installs the upper end at jar body 21, and agitator pump 22 lower extreme stretches into jar body 21 in, and the part that stretches into in jar body 21 is equipped with the paddle, adds the pencil and is connected with the measuring pump, sends the medicament of jar body 21 to reaction chamber 1 through measuring pump 23.
In order to observe the conditions in the reaction chamber 1 conveniently, an observation platform 24 is further arranged at the upper end of the reaction chamber 1, an observation window 25 is arranged at the upper end of the reaction chamber 1, and the relevant conditions in the reaction chamber 1 can be observed through the observation window 25.
The present invention is further explained and not limited by the embodiments, and those skilled in the art can make various modifications as necessary after reading the present specification, but all the embodiments are protected by the patent law within the scope of the claims.
Claims (10)
1. A mud reaction tank for soil remediation is characterized by structurally comprising at least two reaction chambers, a standby reaction tank, a stirring device, a feeding pipe and a plurality of dosing pipes, wherein an overflow port is arranged between every two adjacent reaction chambers and is communicated with the two adjacent reaction tanks; the stirring device is arranged in the reaction chamber and the spare reaction tank; the charging pipes are provided with a plurality of charging openings, and the charging openings correspond to the reaction chambers one by one; the dosing pipe is provided with a plurality of dosing ports, and the dosing ports correspond to the reaction chambers one by one; an overflow pipe and a communicating pipe are connected between the standby reaction tank and one of the reaction chambers, the overflow pipe and the communicating pipe are respectively connected between the reaction chambers and the standby reaction tank, the overflow pipe is close to the upper ends of the reaction chambers and the standby reaction tank and is lower than an overflow port, the communicating pipe is close to the bottoms of the reaction chambers and the standby reaction tank, and a first valve is installed on the communicating pipe.
2. The mud reaction tank for soil remediation as claimed in claim 1, wherein the stirring device comprises a driving motor, a propeller shaft and blades, two layers of blades are arranged in the length direction of the propeller shaft, and the driving motor is in transmission connection with the propeller shaft.
3. The mud reaction tank for soil remediation as claimed in claim 2, wherein the paddle is of a rectangular structure, the paddle comprises long sides and short sides, the short side of one end of the paddle is fixed on the paddle shaft, and the other end of the paddle is of a convex structure; each layer comprises two blades, and the two blades on the same layer are positioned on two sides of the paddle shaft; the short sides of the blades form acute included angles with the horizontal plane, and the short sides of the two blades on the same layer are arranged in a crossed mode.
4. The mud reaction tank for soil remediation as claimed in claim 3, wherein the short side of the paddle is at an angle of 22 ° to the horizontal, and the paddle is 20-30cm from the bottom of the reaction chamber.
5. The mud reaction tank for soil remediation as claimed in claim 1, wherein a discharge port is provided at one side of the bottom of the reaction chamber, a discharge pipe is provided at one side of the reaction chamber, the discharge port is connected to one end of the discharge pipe, and a second valve is further provided at the discharge port.
6. The mud reaction tank for soil remediation according to claim 5, wherein the other end of the discharge pipe is further connected with a main material pump connector and an auxiliary material pump connector, and a third valve is respectively arranged at the main material pump connector and the auxiliary material pump connector; the height of one end of the discharge pipe, which is connected with the main material pump connector and the auxiliary material pump connector, is higher than that of one end of the discharge pipe, which is connected with the discharge port.
7. The mud reaction tank for soil remediation of claim 6, wherein a backwash pipe is further provided on the discharge pipe at an end adjacent to the main material pump connection port and the auxiliary material pump connection port.
8. The mud reaction tank for soil remediation as claimed in claim 5, wherein a dredging channel is further provided on the discharging pipe at an end of the discharging pipe close to the discharging port, and a fourth valve is further provided at the dredging channel.
9. The mud reaction tank for soil remediation according to claim 1, wherein the dosing pipes are respectively connected with a dosing tank, the dosing tank comprises a tank body, a stirring pump and a metering pump, the stirring pump is mounted at the upper end of the tank body, and the metering pump is connected with the dosing pipes.
10. The mud reaction tank for soil remediation as claimed in claim 1, wherein an observation platform is further disposed at an upper end of the reaction chamber, and an observation window is disposed at an upper end of the reaction chamber, and the observation window is located on one side of the observation platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110850777.7A CN113649406A (en) | 2021-07-27 | 2021-07-27 | Slurry reaction tank for soil remediation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110850777.7A CN113649406A (en) | 2021-07-27 | 2021-07-27 | Slurry reaction tank for soil remediation |
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| Publication Number | Publication Date |
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| CN113649406A true CN113649406A (en) | 2021-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110850777.7A Pending CN113649406A (en) | 2021-07-27 | 2021-07-27 | Slurry reaction tank for soil remediation |
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|---|---|---|---|---|
| CN2574769Y (en) * | 2002-10-21 | 2003-09-24 | 上海大可染料有限公司 | Internal circulation anaerobic expansion bed/fluidized bed reactor |
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| US20120164841A1 (en) * | 2010-12-23 | 2012-06-28 | Rajesh Kelekar | Combinatorial non-contact wet processing |
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| CN105753206A (en) * | 2015-11-24 | 2016-07-13 | 北京建工环境修复股份有限公司 | Waste liquor drip washing and stabilizing integrated treatment equipment for contaminated soil remediation |
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| CN209124602U (en) * | 2018-11-01 | 2019-07-19 | 江苏瑞河环境工程研究院有限公司 | A kind of Soil leaching device |
| CN209697705U (en) * | 2019-04-02 | 2019-11-29 | 湖南嘉沣工程设计有限责任公司 | A kind of micro-nano bubble reinforcing dystopy elution equipment |
-
2021
- 2021-07-27 CN CN202110850777.7A patent/CN113649406A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2574769Y (en) * | 2002-10-21 | 2003-09-24 | 上海大可染料有限公司 | Internal circulation anaerobic expansion bed/fluidized bed reactor |
| CN201519575U (en) * | 2009-07-21 | 2010-07-07 | 浙江大禾化工有限公司 | Circulating reaction tank combination of polymerization process of thickener |
| US20120164841A1 (en) * | 2010-12-23 | 2012-06-28 | Rajesh Kelekar | Combinatorial non-contact wet processing |
| CN103143287A (en) * | 2011-12-06 | 2013-06-12 | 沈阳铝镁设计研究院有限公司 | High performance backward bent stirring paddle with circular arc surface |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211116 |
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| RJ01 | Rejection of invention patent application after publication |