CN114147059A - Soil remediation medicament filling device - Google Patents

Soil remediation medicament filling device Download PDF

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Publication number
CN114147059A
CN114147059A CN202111458107.7A CN202111458107A CN114147059A CN 114147059 A CN114147059 A CN 114147059A CN 202111458107 A CN202111458107 A CN 202111458107A CN 114147059 A CN114147059 A CN 114147059A
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CN
China
Prior art keywords
rod
bevel gear
fixedly mounted
filling
soil remediation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111458107.7A
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Chinese (zh)
Inventor
张晓晴
李壮壮
李雅
李鑫
朱元杰
任大军
张淑琴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan University of Science and Engineering WUSE
Original Assignee
Wuhan University of Science and Engineering WUSE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuhan University of Science and Engineering WUSE filed Critical Wuhan University of Science and Engineering WUSE
Priority to CN202111458107.7A priority Critical patent/CN114147059A/en
Publication of CN114147059A publication Critical patent/CN114147059A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09CRECLAMATION OF CONTAMINATED SOIL
    • B09C1/00Reclamation of contaminated soil
    • B09C1/08Reclamation of contaminated soil chemically

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Abstract

The invention belongs to the technical field of filling devices, in particular to a soil remediation medicament filling device, which aims at the problem that the existing medicament filling device is inconvenient to uniformly fill medicaments and comprises a mounting plate, wherein a medicament box is fixedly arranged at the top of the mounting plate, a stirring mechanism is arranged in the medicament box, a hollow column is fixedly arranged at the top of the mounting plate, one end of a liquid pumping pipe and one end of a liquid outlet hose are fixedly communicated with the outer side of the hollow column, the other end of the liquid pumping pipe is fixedly connected with the medicament box, a hollow filling rod is fixedly communicated with the other end of the liquid outlet hose, a plurality of crushing heads are fixedly arranged on the outer side of the hollow filling rod, and a plurality of filling holes are formed in the outer side of the hollow filling rod. Avoid the precipitation and make the medicine more uniform.

Description

Soil remediation medicament filling device
Technical Field
The invention relates to the technical field of filling devices, in particular to a soil remediation agent filling device.
Background
Soil is originally a natural accommodation place and a purification treatment place of various wastes, soil accepts pollutants, does not indicate that the soil is polluted, and indicates that the soil is polluted only when various pollutants accommodated in the soil are excessive and influence and exceed the self-purification capacity of the soil, so that the soil has harmful influence on hygiene and epidemiology. The soil pollution is caused by various reasons, such as industrial sludge, garbage agriculture, sewage irrigation, pollutant sedimentation in the atmosphere, heavy metal-containing mineral fertilizers and pesticides used in large quantities, and the like, the soil pollution is repaired when needed, and the soil remediation refers to transferring, absorbing, degrading and converting pollutants in the soil by physical, chemical and biological methods to reduce the concentration of the pollutants to an acceptable level or converting toxic and harmful pollutants into harmless substances. Fundamentally, the technical principle of contaminated soil remediation may include: changing the existing form of the pollutants in the soil or the combination mode of the pollutants and the soil, and reducing the mobility and bioavailability of the pollutants in the environment; the concentration of harmful substances in the soil is reduced, the medicament filling mode is a more common soil remediation mode, and a medicament filling device is required for medicament filling.
The existing medicament filling device is inconvenient for uniformly filling the medicament, so a soil remediation medicament filling device is provided to solve the problems.
Disclosure of Invention
The invention aims to solve the defect that a medicament filling device is inconvenient to uniformly fill medicaments, and provides a soil remediation medicament filling device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a soil remediation medicament filling device comprises a mounting plate, wherein a medicament box is fixedly mounted at the top of the mounting plate, a stirring mechanism is arranged in the medicament box, a hollow column is fixedly mounted at the top of the mounting plate, one end of a liquid pumping pipe and one end of a liquid outlet hose are fixedly communicated with the outer side of the hollow column, the other end of the liquid pumping pipe is fixedly connected with the medicament box, a hollow filling rod is fixedly communicated with the other end of the liquid outlet hose, a plurality of smashing heads are fixedly mounted at the outer side of the hollow filling rod, a plurality of filling holes are formed in the outer side of the hollow filling rod, an electric push rod is fixedly mounted at the top of the mounting plate, an L-shaped plate is fixedly mounted on an output shaft of the electric push rod, a bearing is fixedly mounted at one side of the L-shaped plate, the inner ring of the bearing is fixedly connected with the outer side of the hollow filling rod, a transverse plate is fixedly mounted at one side of the medicament box, a rotating mechanism is arranged at the bottom of the transverse plate, and is matched with the hollow filling rod, one side of the medicine chest is provided with a reciprocating mechanism.
Preferably, rabbling mechanism is including rotating the stirring rod of installing on medical kit top inner wall, and the outside fixed mounting of stirring rod has a plurality of stirring vanes, and the top of medical kit is equipped with the fluid infusion mouth, and a plurality of gyro wheels are installed to the bottom of mounting panel, have seted up perpendicular hole on the mounting panel, and the bottom of cavity filling pole runs through perpendicular hole.
Preferably, the rotating mechanism comprises a vertical shaft rotatably mounted at the bottom of the transverse plate, a rectangular groove is formed in the bottom of the vertical shaft, a rectangular rod is slidably mounted in the rectangular groove, and the bottom of the rectangular rod is fixedly connected with the top of the hollow injection rod.
Preferably, reciprocating motion mechanism includes fixed mounting in the motor of medical kit one side, and fixed mounting has first pole on the output shaft of motor, and the one end of first pole is rotated and is installed the one end of second pole, and the other end of second pole is rotated and is installed the one end of lifter, and the other end of lifter extends to in the cavity post and fixed mounting has the piston, the outside of piston and the inner wall sliding connection of cavity post, and the round hole has been seted up at the top of cavity post, the outside of lifter and the inner wall sliding connection of round hole.
Preferably, one side of the medicine chest is rotatably provided with a transmission rod, one end of the transmission rod is fixedly provided with a first bevel gear, the first bevel gear is engaged with a second bevel gear, and the second bevel gear is fixedly sleeved on the outer side of the stirring rod.
Preferably, the other end of the transmission rod is fixedly provided with a third bevel gear, the third bevel gear is meshed with a fourth bevel gear, and the fourth bevel gear is fixedly sleeved on the outer side of the vertical shaft.
Preferably, a transmission gear is fixedly sleeved on the outer side of the transmission rod, a rack is meshed on the transmission gear, a lifting plate is fixedly mounted at the bottom of the rack, and the lifting plate is fixedly connected with the lifting rod.
Preferably, a first check valve and a second check valve are respectively arranged in the liquid pumping pipe and the liquid outlet hose, and a valve is arranged on the liquid pumping pipe.
Preferably, a first mounting box is fixedly mounted on the inner wall of the top of the medicine box, and the first bevel gear and the second bevel gear are both located in the first mounting box.
Preferably, the bottom of diaphragm fixed mounting has the second mounting box, and third bevel gear and fourth bevel gear all are located the second mounting box.
Compared with the prior art, the invention has the advantages that:
(1) according to the scheme, the motor drives the first rod to eccentrically rotate, the first rod drives the second rod to move, the second rod drives the lifting rod to vertically reciprocate, the lifting rod drives the piston to vertically reciprocate, liquid can only flow in a single direction through the arrangement of the first check valve and the second check valve, and further the liquid pumping pipe extracts liquid medicine in the medicine box through the reciprocating motion of the piston, the liquid medicine is discharged into the hollow filling rod through the liquid outlet hose, and finally the liquid medicine is filled into soil through the filling hole;
(2) the hollow injection rod is driven to rotate forwards and backwards continuously by the vertical shaft, the soil can be crushed by the crushing head on the outer side of the hollow injection rod, so that the soil is more uniformly and fully contacted with the medicament, the first bevel gear drives the second bevel gear to rotate forwards and backwards continuously, and the second bevel gear drives the stirring rod to rotate forwards and backwards continuously, so that the medicament can be stirred, precipitation is avoided, and the medicament is more uniform;
according to the invention, the hollow filling rod continuously rotates forwards and backwards, so that the crushing head can crush soil, the soil is more uniformly and fully contacted with the medicament, the medicament can be stirred, precipitation is avoided, and the medicament is more uniform.
Drawings
FIG. 1 is a schematic structural diagram of a soil remediation agent injection device according to the present invention;
FIG. 2 is a schematic structural view of a front cross section of a soil remediation agent filling apparatus according to the present invention;
FIG. 3 is a schematic view of a three-dimensional structure of the connection of the lifting rod, the motor, the first rod, the second rod and the lifting plate of the soil remediation agent filling device provided by the invention;
FIG. 4 is a schematic perspective view of the connection of a hollow filling rod, a vertical shaft and a rectangular rod of the soil remediation agent filling device according to the present invention;
FIG. 5 is an enlarged schematic view of part A in FIG. 2 of a soil remediation agent injection apparatus according to the present invention
Fig. 6 is an enlarged structural view of a portion B of fig. 2 of a soil remediation agent injection apparatus according to the present invention.
In the figure: 1. mounting a plate; 2. a medicine chest; 3. a hollow column; 4. a liquid pumping pipe; 5. a liquid outlet hose; 6. a hollow injection rod; 7. a pulverizing head; 8. filling holes; 9. an electric push rod; 10. an L-shaped plate; 11. a bearing; 12. a piston; 13. a lifting rod; 14. a motor; 15. a first lever; 16. a second lever; 17. a lifting plate; 18. a rack; 19. a vertical axis; 20. a rectangular bar; 21. a stirring rod; 22. a first mounting box; 23. a second bevel gear; 24. a first bevel gear; 25. a transmission rod; 26. a transverse plate; 27. a transmission gear; 28. a second mounting box; 29. a third bevel gear; 30. a fourth bevel gear; 31. vertical holes; 32. a fluid infusion port; 33. a roller; 34. a first check valve; 35. a second one-way valve.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments, but not all embodiments.
Referring to fig. 1-6, a soil remediation drug filling device comprises a mounting plate 1, a drug box 2 is fixedly mounted on the top of the mounting plate 1, a stirring mechanism is arranged in the drug box 2, a hollow column 3 is fixedly mounted on the top of the mounting plate 1, one end of a liquid pumping pipe 4 and one end of a liquid outlet hose 5 are fixedly communicated with the outer side of the hollow column 3, the other end of the liquid pumping pipe 4 is fixedly connected with the drug box 2, a hollow filling rod 6 is fixedly communicated with the other end of the liquid outlet hose 5, a plurality of crushing heads 7 are fixedly mounted on the outer side of the hollow filling rod 6, a plurality of filling holes 8 are formed in the outer side of the hollow filling rod 6, an electric push rod 9 is fixedly mounted on the top of the mounting plate 1, an L-shaped plate 10 is fixedly mounted on an output shaft of the electric push rod 9, a bearing 11 is fixedly mounted on one side of the L-shaped plate 10, the inner ring of the bearing 11 is fixedly connected with the outer side of the hollow filling rod 6, a transverse plate 26 is fixedly mounted on one side of the drug box 2, the bottom of the transverse plate 26 is provided with a rotating mechanism which is matched with the hollow filling rod 6, and one side of the medicine chest 2 is provided with a reciprocating mechanism.
Bearing 11's setting can drive the cavity and add 6 vertical removal of notes pole, and can not influence the cavity and add notes pole 6 and rotate, can stir by the medicament through rabbling mechanism, avoid deposiing, make the medicament more even, can the cavity add notes pole 6 through slewing mechanism and constantly just reverse the rotation, the cavity adds the crushing head 7 in the 6 outsides of notes pole and can smash soil, make soil and more even abundant of medicament contact, can extract and carry the liquid medicine through reciprocating motion mechanism's setting.
In this embodiment, the stirring mechanism includes a stirring rod 21 rotatably installed on the inner wall of the top of the medicine box 2, a plurality of stirring blades are fixedly installed on the outer side of the stirring rod 21, a liquid replenishing port 32 is formed in the top of the medicine box 2, a plurality of rollers 33 are installed at the bottom of the mounting plate 1, a vertical hole 31 is formed in the mounting plate 1, and the bottom end of the hollow filling rod 6 penetrates through the vertical hole 31.
The stirring rod 21 drives the stirring blades to rotate, so as to stir the liquid medicine.
In this embodiment, the rotating mechanism includes the vertical shaft 19 rotatably installed at the bottom of the transverse plate 26, a rectangular groove is opened at the bottom of the vertical shaft 19, a rectangular rod 20 is slidably installed in the rectangular groove, and the bottom of the rectangular rod 20 is fixedly connected with the top of the hollow injection rod 6.
The rectangular rod 20 can only slide in the rectangular groove, so that the vertical shaft 19 can drive the rectangular rod 20 to rotate when rotating, and the hollow filling rod 6 is driven to rotate through the rectangular rod 20.
In this embodiment, the reciprocating mechanism includes a motor 14 fixedly mounted on one side of the medicine box 2, a first rod 15 is fixedly mounted on an output shaft of the motor 14, one end of the first rod 15 is rotated to mount one end of a second rod 16, the other end of the second rod 16 is rotated to mount one end of a lifting rod 13, the other end of the lifting rod 13 extends into the hollow column 3 and is fixedly mounted with a piston 12, the outer side of the piston 12 is slidably connected with the inner wall of the hollow column 3, a circular hole is formed in the top of the hollow column 3, and the outer side of the lifting rod 13 is slidably connected with the inner wall of the circular hole.
The motor 14 drives the first rod 15 to eccentrically rotate, the first rod 15 drives the second rod 16 to move, the second rod 16 drives the lifting rod 13 to vertically reciprocate, and the lifting rod 13 drives the piston 12 to vertically reciprocate.
In this embodiment, a transmission rod 25 is rotatably mounted on one side of the medicine box 2, a first bevel gear 24 is fixedly mounted on one end of the transmission rod 25, a second bevel gear 23 is engaged with the first bevel gear 24, and the second bevel gear 23 is fixedly sleeved on the outer side of the stirring rod 21.
The first bevel gear 24 is driven to rotate by the transmission rod 25, the second bevel gear 23 is driven to rotate forward and backward by the first bevel gear 24, and the stirring rod 21 is driven to rotate forward and backward by the second bevel gear 23.
In this embodiment, the other end of the transmission rod 25 is fixedly installed with a third bevel gear 29, the third bevel gear 29 is engaged with a fourth bevel gear 30, and the fourth bevel gear 30 is fixedly sleeved outside the vertical shaft 19.
The third bevel gear 29 is driven to rotate by the transmission rod 25, the fourth bevel gear 30 is driven to rotate by the third bevel gear 29, and the vertical shaft 19 is driven to rotate by the fourth bevel gear 30.
In this embodiment, a transmission gear 27 is fixedly sleeved outside the transmission rod 25, a rack 18 is meshed on the transmission gear 27, a lifting plate 17 is fixedly installed at the bottom of the rack 18, and the lifting plate 17 is fixedly connected with the lifting rod 13.
The vertical reciprocating motion of the lifting rod 13 drives the lifting plate 17 to vertically reciprocate, and the lifting plate 17 drives the rack 18 to reciprocate, so that the transmission gear 27 rotates forwards and backwards.
In this embodiment, the first check valve 34 and the second check valve 35 are respectively disposed in the liquid pumping tube 4 and the liquid outlet hose 5, and the liquid pumping tube 4 is provided with a valve. The first check valve 34 and the second check valve 35 are arranged to make the liquid flow in one direction only
In this embodiment, the first mounting box 22 is fixedly mounted on the top inner wall of the medicine box 2, and both the first bevel gear 24 and the second bevel gear 23 are located in the first mounting box 22.
In this embodiment, a second mounting box 28 is fixedly mounted at the bottom of the transverse plate 26, and the third bevel gear 29 and the fourth bevel gear 30 are both located in the second mounting box 28.
In the embodiment, when the device is used, a liquid medicine is added into the medicine box 2 from the liquid supplementing opening 32, the mounting plate 1 is moved to a filling area through the roller 33, the L-shaped plate 10 is driven to move downwards through the electric push rod 9, the L-shaped plate 10 drives the bearing 11 to move downwards, the bearing 11 drives the hollow filling rod 6 to be inserted downwards into soil, then the motor 14 is started to open the valve, the motor 14 drives the first rod 15 to rotate eccentrically, the first rod 15 drives the second rod 16 to move, the second rod 16 drives the lifting rod 13 to reciprocate vertically, the lifting rod 13 drives the piston 12 to reciprocate vertically, the liquid can only flow in one direction through the arrangement of the first check valve 34 and the second check valve 35, the liquid medicine in the medicine box 2 is extracted through the liquid extracting tube 4 through the reciprocating motion of the piston 12, the liquid medicine is discharged into the hollow filling rod 6 through the liquid outlet tube 5, and is finally filled into the soil through the filling hole 8, meanwhile, the vertical reciprocating motion of the lifting rod 13 drives the lifting plate 17 to vertically reciprocate, the lifting plate 17 drives the rack 18 to reciprocate, so that the transmission gear 27 rotates forwards and backwards, the transmission gear 27 drives the transmission rod 25 to rotate forwards and backwards, the transmission rod 25 drives the third bevel gear 29 and the first bevel gear 24 to rotate forwards and backwards, the third bevel gear 29 drives the fourth bevel gear 30 to rotate forwards and backwards, the fourth bevel gear 30 drives the vertical shaft 19 to rotate forwards and backwards, the vertical shaft 19 drives the hollow injection rod 6 to rotate forwards and backwards, the crushing head 7 on the outer side of the hollow injection rod 6 can crush soil, so that the soil is contacted with the medicament more uniformly and fully, drive second bevel gear 23 through first bevel gear 24 and constantly rotate just reverse, second bevel gear 23 drives puddler 21 and constantly rotates just reverse, and then can stir the medicament, avoids deposiing, makes the medicament more even.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention in the technical scope of the present invention.

Claims (10)

1. The soil remediation medicament filling device comprises a mounting plate (1) and is characterized in that a medicine box (2) is fixedly mounted at the top of the mounting plate (1), a stirring mechanism is arranged in the medicine box (2), a hollow column (3) is fixedly mounted at the top of the mounting plate (1), one end of a liquid pumping pipe (4) and one end of a liquid outlet hose (5) are fixedly communicated with the outer side of the hollow column (3), the other end of the liquid pumping pipe (4) is fixedly connected with the medicine box (2), a hollow filling rod (6) is fixedly communicated with the other end of the liquid outlet hose (5), a plurality of crushing heads (7) are fixedly mounted at the outer side of the hollow filling rod (6), a plurality of filling holes (8) are formed in the outer side of the hollow filling rod (6), an electric push rod (9) is fixedly mounted at the top of the mounting plate (1), and an L-shaped plate (10) is fixedly mounted on an output shaft of the electric push rod (9), one side fixed mounting of L shaped plate (10) has bearing (11), and the inner circle of bearing (11) and the outside fixed connection of cavity with annotating pole (6), one side fixed mounting of medical kit (2) has diaphragm (26), and the bottom of diaphragm (26) is equipped with slewing mechanism, and slewing mechanism and cavity are added and are annotated pole (6) and cooperate, one side of medical kit (2) is equipped with reciprocating motion mechanism.
2. The soil remediation drug filling device according to claim 1, wherein the stirring mechanism comprises a stirring rod (21) rotatably mounted on the inner wall of the top of the drug box (2), a plurality of stirring blades are fixedly mounted on the outer side of the stirring rod (21), the top of the drug box (2) is provided with a fluid supplementing port (32), a plurality of rollers (33) are mounted at the bottom of the mounting plate (1), vertical holes (31) are formed in the mounting plate (1), and the bottom end of the hollow filling rod (6) penetrates through the vertical holes (31).
3. The soil remediation agent filling device according to claim 1, wherein the rotating mechanism comprises a vertical shaft (19) rotatably mounted at the bottom of the transverse plate (26), a rectangular groove is formed in the bottom of the vertical shaft (19), a rectangular rod (20) is slidably mounted in the rectangular groove, and the bottom of the rectangular rod (20) is fixedly connected with the top of the hollow filling rod (6).
4. The soil remediation drug filling device according to claim 1, wherein the reciprocating mechanism comprises a motor (14) fixedly mounted on one side of the drug box (2), a first rod (15) is fixedly mounted on an output shaft of the motor (14), one end of the first rod (15) is rotatably mounted with one end of a second rod (16), the other end of the second rod (16) is rotatably mounted with one end of a lifting rod (13), the other end of the lifting rod (13) extends into the hollow column (3) and is fixedly mounted with a piston (12), the outer side of the piston (12) is slidably connected with the inner wall of the hollow column (3), a round hole is formed in the top of the hollow column (3), and the outer side of the lifting rod (13) is slidably connected with the inner wall of the round hole.
5. The soil remediation agent filling device according to claim 2, wherein a transmission rod (25) is rotatably mounted on one side of the medicine box (2), a first bevel gear (24) is fixedly mounted at one end of the transmission rod (25), a second bevel gear (23) is engaged with the first bevel gear (24), and the second bevel gear (23) is fixedly sleeved on the outer side of the stirring rod (21).
6. The soil remediation agent filling device as claimed in claim 5, wherein a third bevel gear (29) is fixedly mounted at the other end of the transmission rod (25), a fourth bevel gear (30) is engaged with the third bevel gear (29), and the fourth bevel gear (30) is fixedly sleeved outside the vertical shaft (19).
7. The soil remediation agent filling device according to claim 5, wherein a transmission gear (27) is fixedly sleeved on the outer side of the transmission rod (25), a rack (18) is meshed on the transmission gear (27), a lifting plate (17) is fixedly installed at the bottom of the rack (18), and the lifting plate (17) is fixedly connected with the lifting rod (13).
8. The soil remediation agent injection apparatus as claimed in claim 1, wherein the liquid suction pipe (4) and the liquid outlet hose (5) are respectively provided with a first check valve (34) and a second check valve (35), and the liquid suction pipe (4) is provided with a valve.
9. The soil remediation agent filling apparatus according to claim 5, wherein a first mounting box (22) is fixedly mounted on the inner wall of the top of the medicine box (2), and the first bevel gear (24) and the second bevel gear (23) are both located in the first mounting box (22).
10. The soil remediation agent filling apparatus of claim 6, wherein a second mounting box (28) is fixedly mounted to the bottom of the transverse plate (26), and the third bevel gear (29) and the fourth bevel gear (30) are both located in the second mounting box (28).
CN202111458107.7A 2021-12-01 2021-12-01 Soil remediation medicament filling device Pending CN114147059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111458107.7A CN114147059A (en) 2021-12-01 2021-12-01 Soil remediation medicament filling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111458107.7A CN114147059A (en) 2021-12-01 2021-12-01 Soil remediation medicament filling device

Publications (1)

Publication Number Publication Date
CN114147059A true CN114147059A (en) 2022-03-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111458107.7A Pending CN114147059A (en) 2021-12-01 2021-12-01 Soil remediation medicament filling device

Country Status (1)

Country Link
CN (1) CN114147059A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117003300A (en) * 2023-07-11 2023-11-07 广东立威化工有限公司 Pesticide production wastewater treatment device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117003300A (en) * 2023-07-11 2023-11-07 广东立威化工有限公司 Pesticide production wastewater treatment device

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