CN112246859A - Soil remediation agent sprinkler to thick and solid top layer - Google Patents

Soil remediation agent sprinkler to thick and solid top layer Download PDF

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Publication number
CN112246859A
CN112246859A CN202011117131.XA CN202011117131A CN112246859A CN 112246859 A CN112246859 A CN 112246859A CN 202011117131 A CN202011117131 A CN 202011117131A CN 112246859 A CN112246859 A CN 112246859A
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CN
China
Prior art keywords
bottom plate
motor
fixedly connected
soil remediation
soil
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
CN202011117131.XA
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Chinese (zh)
Inventor
束慧
阳俐君
陈卫兵
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Nantong Vocational College
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Nantong Vocational College
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 Nantong Vocational College filed Critical Nantong Vocational College
Priority to CN202011117131.XA priority Critical patent/CN112246859A/en
Publication of CN112246859A publication Critical patent/CN112246859A/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
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01BSOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B49/00Combined machines
    • A01B49/04Combinations of soil-working tools with non-soil-working tools, e.g. planting tools
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01BSOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B77/00Machines for lifting and treating soil
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09CRECLAMATION OF CONTAMINATED SOIL
    • B09C2101/00In situ

Abstract

The invention discloses a pesticide spraying device for repairing soil with a thick surface layer, which comprises a bottom plate, wherein one end of the bottom plate is fixedly connected with first connecting rods which are mutually symmetrical, one ends of the two first connecting rods, which are far away from the bottom plate, are provided with pin shafts in a penetrating manner, two ends of each pin shaft are fixedly connected with first rotating wheels which are mutually symmetrical, the middle part of each pin shaft is fixedly sleeved with a rotating roller, the outer sides of the rotating rollers are uniformly and convexly provided with a plurality of shovel teeth, the middle part of the top surface of the bottom plate is fixedly provided with a pesticide barrel, and the inside of the. According to the device, the pin shaft penetrates through one end, away from the bottom plate, of the two first connecting rods, the two ends of the pin shaft are fixedly connected with the first rotating wheels which are symmetrical to each other, the rotating roller is fixedly sleeved in the middle of the pin shaft, and the plurality of relieving teeth are uniformly distributed and projected on the outer side of the rotating roller, so that the device can loosen hardened soil, a medicament can quickly permeate into the soil, and the soil repairing effect of the medicament is improved.

Description

Soil remediation agent sprinkler to thick and solid top layer
Technical Field
The invention relates to the technical field of medicament spraying, in particular to a soil remediation medicament spraying device for a thick surface layer.
Background
The soil remediation is a technical measure for restoring the normal function of polluted soil, in the soil remediation industry, the existing soil remediation technology reaches more than one hundred, the common technology is more than ten, and can be roughly divided into three methods, namely physical, chemical and biological, and since the 80 th century, many countries in the world, especially developed countries, make and develop polluted soil treatment and remediation plans, so that a new soil remediation industry is formed;
at present, the following problems exist in the existing soil agent spraying equipment: 1. the repairing agent spraying devices directly transmit the liquid medicine in the medicine storage cylinder to the spray head for spraying, but the liquid medicine in the medicine storage cylinder is easy to precipitate after being placed, so that the concentration of the liquid medicine is reduced, the liquid medicine cannot achieve the due soil repairing effect, and the practicability of the repairing agent spraying equipment is further reduced; 2. the spraying equipment does not have the function of soil scarification, and for the seriously hardened soil, the time for the agent to permeate into the soil is long, so that the agent can not enter the soil and can be automatically evaporated, the land repairing effect of the agent is poor, and a large amount of agent is wasted; therefore, it is necessary to provide a device for spraying a soil remediation agent to a thick surface to solve the above problems.
Disclosure of Invention
The invention aims to provide a spraying device for a soil remediation agent aiming at a thick surface layer, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a spraying device for a soil remediation agent aiming at a thick surface layer comprises a bottom plate, wherein one end of the bottom plate is fixedly connected with first connecting rods which are mutually symmetrical, pin shafts are arranged at the ends, away from the bottom plate, of the two first connecting rods in a penetrating mode, two ends of each pin shaft are fixedly connected with first rotating wheels which are mutually symmetrical, a rotating roller is fixedly sleeved in the middle of each pin shaft, and a plurality of relieving teeth are uniformly distributed and projected on the outer side of the rotating roller;
a medicament barrel is fixedly arranged in the middle of the top surface of the bottom plate, a stirring groove is formed in the medicament barrel, a feeding funnel is embedded in one side of the upper end of the medicament barrel, a feeding through groove mutually communicated with the stirring groove is formed in the feeding funnel, a transfusion pipeline mutually communicated with the stirring groove is embedded in one side, away from the feeding funnel, of the lower end of the medicament barrel, a self-suction water pump is fixedly connected to one end, away from the medicament barrel, of the transfusion pipeline, a mutually communicated liquid supply pipeline is embedded in the outer side of one end, away from the medicament barrel, of the transfusion pipeline, a mutually communicated liquid discharge pipeline is fixedly connected to one end, away from the transfusion pipeline, of the liquid supply pipeline, and a plurality of atomizing nozzles which are linearly distributed at equal intervals are fixedly arranged;
the fixed motor case that is equipped with in top middle part of medicament section of thick bamboo, first motor groove has been seted up to the inside of motor case, the fixed first motor that is equipped with in inside in first motor groove, the bottom middle part of first motor is equipped with first pivot, the inside rotation of stirred tank is equipped with the axis, first pivot runs through the tank bottom in first motor groove and the groove top and the axis fixed connection of stirred tank in proper order, centraxonial bottom fixedly connected with connecting piece, a plurality of flabellums that are the annular array and distribute of outside fixedly connected with of connecting piece.
Preferably, the fixed base that is equipped with of one end top surface that changes the roller is kept away from to the bottom plate, the second motor groove has been seted up at the top surface middle part of base, the fixed second motor that is equipped with in inside in second motor groove, the one end middle part of second motor is equipped with the second pivot, the lateral wall fixedly connected with second runner in second motor groove is run through to the one end that the second motor was kept away from in the second pivot, one of them be equipped with drive chain between first runner and the second runner.
Preferably, the bottom surface of one end of the bottom plate, which is far away from the rotating roller, is fixedly provided with symmetrical directional wheels, two sides of the directional wheels are provided with symmetrical second connecting rods, and the top ends of the four second connecting rods are fixedly connected with the bottom surface of the bottom plate.
Preferably, the bottom end of the rotating roller and the bottom ends of the two orientation wheels are positioned on the same horizontal plane, and the bottom plate inclines towards one end of the rotating roller.
Preferably, the middle part of the directional wheel is provided with a wheel shaft in a penetrating way, and two ends of the wheel shaft are respectively embedded into adjacent surfaces of the second connecting rods with two symmetrical sides.
Preferably, the outer side of the orientation wheel is provided with a plurality of grooves distributed in an annular array.
Preferably, one end of the bottom plate, which is far away from the rotating roller, is fixedly connected with a handle.
The invention has the technical effects and advantages that:
1. according to the device, the pin shaft penetrates through one end, away from the bottom plate, of the two first connecting rods, the two ends of the pin shaft are fixedly connected with the first rotating wheels which are symmetrical to each other, the rotating roller is fixedly sleeved in the middle of the pin shaft, and the plurality of relieving teeth are uniformly distributed and projected on the outer side of the rotating roller, so that the device can loosen hardened soil, a medicament can quickly permeate into the soil, and the soil repairing effect of the medicament is improved;
2. according to the device, the first rotating shaft is arranged in the middle of the bottom end of the first motor, the middle shaft is rotatably arranged in the stirring tank, the bottom end of the middle shaft is fixedly connected with the connecting piece, and the outer side of the connecting piece is fixedly connected with the fan blades distributed in an annular array, so that the device can avoid the situation that the concentration of the liquid medicine is reduced and the land remediation effect is poor due to the fact that the liquid medicine is settled in the spraying process.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the present invention.
FIG. 3 is an enlarged view of the position A in FIG. 2 according to the present invention.
Fig. 4 is a schematic sectional view of the cartridge of the present invention.
FIG. 5 is an enlarged view of the position B in FIG. 4 according to the present invention.
In the figure: 1. a base plate; 11. a first connecting rod; 111. a pin shaft; 1111. a first runner; 12. a second connecting rod; 121. a directional wheel; 13. a handle; 2. rotating the roller; 21. relieving teeth; 3. a medicament cartridge; 31. a stirring tank; 311. a middle shaft; 3111. a connecting member; 31111. a fan blade; 32. a feed hopper; 321. a feeding through groove; 33. a fluid delivery conduit; 331. a self-suction water pump; 34. a liquid supply conduit; 35. a liquid discharge conduit; 351. an atomizing spray head; 4. a motor case; 41. a first motor slot; 411. a first motor; 4111. a first rotating shaft; 5. a base; 51. a second motor slot; 511. a second motor; 5111. a second rotating shaft; 5112. a second runner; 6. a transmission chain.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a pesticide spraying device for repairing soil with a thick surface layer, which comprises a bottom plate 1, wherein one end of the bottom plate 1 is fixedly connected with first connecting rods 11 which are symmetrical to each other, one ends of the two first connecting rods 11, which are far away from the bottom plate 1, are provided with pin shafts 111 in a penetrating manner, two ends of each pin shaft 111 are fixedly connected with first rotating wheels 1111 which are symmetrical to each other, the middle parts of the pin shafts 111 are fixedly sleeved with rotating rollers 2, the outer sides of the rotating rollers 2 are uniformly and convexly provided with a plurality of shovel teeth 21, the rotating rollers 2 have large mass, when the rotating rollers 2 rotate, the plurality of shovel teeth 21 are inserted into hardened soil, and the hardened soil is loosened, so that the device can loosen the hardened soil, and pesticides can rapidly permeate into the soil, thereby improving the soil repairing effect of the pesticides;
a medicament barrel 3 is fixedly arranged in the middle of the top surface of the bottom plate 1, a stirring groove 31 is arranged in the medicament barrel 3, a feeding funnel 32 is embedded in one side of the upper end of the medicament barrel 3, a feeding through groove 321 communicated with the stirring groove 31 is arranged in the feeding funnel 32, a transfusion pipeline 33 communicated with the stirring groove 31 is embedded in one side of the lower end of the medicament barrel 3 far away from the feeding funnel 32, a self-suction water pump 331 is fixedly connected to one end of the transfusion pipeline 33 far away from the medicament barrel 3, a liquid supply pipeline 34 communicated with each other is embedded in the outer side of one end of the transfusion pipeline 33 far away from the medicament barrel 3, a liquid discharge pipeline 35 communicated with each other is fixedly connected to one end of the liquid supply pipeline 34 far away from the transfusion pipeline 33, a plurality of atomizing nozzles 351 distributed at equal intervals in a linear shape are fixedly arranged at the lower end of the liquid discharge pipeline 35, medicament and clean water are added into, after the self-suction water pump 331 is started, the self-suction water pump 331 pumps the liquid medicine in the stirring tank 31 through the liquid conveying pipeline 33, the pumped liquid medicine enters the liquid discharging pipeline 35 through the liquid supplying pipeline 34, the self-suction water pump 331 continuously pumps water, and the pressure of the liquid medicine in the liquid discharging pipeline 35 is increased to a certain degree and is atomized and sprayed out from the plurality of atomizing nozzles 351 to spray the land;
a motor box 4 is fixedly arranged in the middle of the top end of the medicament barrel 3, a first motor groove 41 is formed in the motor box 4, a first motor 411 is fixedly arranged in the first motor groove 41, a first rotating shaft 4111 is arranged in the middle of the bottom end of the first motor 411, a middle shaft 311 is rotatably arranged in the stirring groove 31, the first rotating shaft 4111 sequentially penetrates through the bottom of the first motor groove 41 and the top of the stirring groove 31 to be fixedly connected with the middle shaft 311, a connecting piece 3111 is fixedly connected to the bottom end of the middle shaft 311, a plurality of blades 31111 distributed in an annular array are fixedly connected to the outer side of the connecting piece 3111, the first motor 411 is always kept in an open state, the first motor 411 drives the middle shaft 311 to rotate through the first rotating shaft 4111, the middle shaft 311 drives the connecting piece 3111 to rotate, the connecting piece 3111 is of a cylindrical structure, the connecting piece 3111 drives the blades 31111 to rotate, the rotating blades 31111 continuously stir the liquid medicament in the stirring groove 31, so that the device can, thereby causing the situation that the concentration of the liquid medicine is reduced and the land restoration effect is deteriorated.
The fixed base 5 that is equipped with of one end top surface that changes roller 2 is kept away from to bottom plate 1, second motor groove 51 has been seted up at the top surface middle part of base 5, the inside fixed second motor 511 that is equipped with in second motor groove 51, the one end middle part of second motor 511 is equipped with second pivot 5111, the lateral wall fixedly connected with second runner 5112 that second motor groove 51 was run through to the one end that second motor 511 was kept away from to second pivot 5111, be equipped with drive chain 6 between one of them first runner 1111 and the second runner 5112, open second motor 511, second motor 511 rotates through the electronic second runner 5112 of second pivot 5111, second runner 5112 and one of them first runner of homonymy link each other through drive chain 6, first runner 1111 drives round pin 111 and changes roller 2 and rotate, make second motor 511 can drive change roller 2 and rotate, thereby loosen the soil that hardens.
The bottom surface of one end of the bottom plate 1, which is far away from the rotating roller 2, is fixedly provided with the symmetrical orientation wheels 121, the two sides of the orientation wheels 121 are provided with the symmetrical second connecting rods 12, and the top ends of the four second connecting rods 12 are fixedly connected with the bottom surface of the bottom plate 1, so that the structure of the device is further described.
The bottom end of the rotary roller 2 and the bottom ends of the two directional wheels 121 are located on the same horizontal plane, and the bottom plate 1 inclines towards one end of the rotary roller 2, so that the gravity center of the device shifts towards the direction of the rotary roller 2, the shovel teeth 21 convenient to insert into the soil are convenient to insert, and the soil loosening effect of the device is better.
The middle part of the directional wheel 121 is provided with a wheel shaft in a penetrating manner, two ends of the wheel shaft are respectively embedded into adjacent surfaces of the second connecting rods 12 with two sides symmetrical to each other, the directional wheel 121 is movably sleeved on the outer side of the middle part of the wheel shaft, and the directional wheel 121 rotates around the wheel shaft.
The outer side of the directional wheel 121 is provided with a plurality of grooves distributed in an annular array, so that the friction force of the directional wheel 121 is increased.
One end of the bottom plate 1 far away from the roller 2 is fixedly connected with a handle 13, and the device is controlled through the handle 13.
The working principle of the invention is as follows: the rotary roller 2 has a large mass, when the rotary roller 2 rotates, the plurality of relieving teeth 21 are inserted into the hardened soil, the hardened soil is loosened, the device can loosen the hardened soil, so that the medicament can quickly permeate into the soil, the repairing effect of the medicament on the soil is improved, the medicament and clean water are added into the feeding hopper 32 according to a certain proportion, the medicament and the clean water are stirred in the stirring tank 31, after the self-suction water pump 331 is started, the self-suction water pump 331 pumps out the liquid medicament in the stirring tank 31 through the infusion pipeline 33, the pumped liquid medicament enters the liquid discharge pipeline 35 through the liquid supply pipeline 34, the self-suction water pump 331 continuously pumps water, the pressure of the liquid medicament in the liquid discharge pipeline 35 is increased to a certain degree, and is atomized and sprayed out from the plurality of atomizing nozzles 351 to the soil;
first motor 411 remains the open mode throughout, first motor 411 leads to first pivot 4111 to drive axis 311 and rotates, axis 311 drives connecting piece 3111 and rotates, connecting piece 3111 is the cylinder structure, connecting piece 3111 drives a plurality of flabellum 31111 and rotates, pivoted flabellum 31111 continuously stirs the inside liquid medicine of stirred tank 31, make the device can avoid the liquid medicine owing to the production that stews deposits spraying the in-process, thereby cause the liquid medicine concentration to reduce, lead to the condition emergence that the soil restoration effect worsens.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (7)

1. The utility model provides a soil remediation agent sprinkler to thick solid top layer, includes bottom plate (1), its characterized in that: one end of the bottom plate (1) is fixedly connected with first connecting rods (11) which are symmetrical to each other, one ends, far away from the bottom plate (1), of the two first connecting rods (11) are provided with pin shafts (111) in a penetrating mode, two ends of each pin shaft (111) are fixedly connected with first rotating wheels (1111) which are symmetrical to each other, the middle of each pin shaft (111) is fixedly sleeved with a rotating roller (2), and a plurality of forming relieved teeth (21) are uniformly distributed and protruded on the outer side of each rotating roller (2);
the top surface middle part of bottom plate (1) is fixed and is equipped with a medicament section of thick bamboo (3), stirred tank (31) have been seted up to the inside of a medicament section of thick bamboo (3), the embedding of upper end one side of a medicament section of thick bamboo (3) has feed hopper (32), the feeding that communicates each other with stirred tank (31) is seted up to the inside of feed hopper (32) leads to groove (321), the infusion pipeline (33) that communicates each other with stirred tank (31) has been embedded into to the one side that feed hopper (32) were kept away from to a medicament section of thick bamboo (3) lower extreme, the one end fixedly connected with that the medicament section of thick bamboo (3) was kept away from in infusion pipeline (33) is from inhaling formula suction pump (331), and the one end outside that medicament section of thick bamboo (3) was kept away from to infusion pipeline (33) is embedded with liquid supply pipeline (34) that communicates each other, the, the lower end of the liquid discharge pipeline (35) is fixedly provided with a plurality of atomizing nozzles (351) which are distributed in a linear shape at equal intervals;
the fixed motor case (4) that is equipped with in top middle part of medicament section of thick bamboo (3), first motor groove (41) have been seted up to the inside of motor case (4), the fixed first motor (411) that is equipped with in inside of first motor groove (41), the bottom middle part of first motor (411) is equipped with first pivot (4111), agitator tank (31) internal rotation is equipped with axis (311), first pivot (4111) runs through the tank bottom of first motor groove (41) and the groove top and axis (311) fixed connection of agitator tank (31) in proper order, the bottom fixedly connected with connecting piece (3111) of axis (311), the outside fixedly connected with of connecting piece (3111) is a plurality of flabellum (31111) that are the ring array and distribute.
2. The soil remediation drug spray apparatus of claim 1, wherein: fixed base (5) that are equipped with of one end top surface of changeing roller (2) is kept away from in bottom plate (1), second motor groove (51) have been seted up at the top surface middle part of base (5), the inside of second motor groove (51) is fixed and is equipped with second motor (511), the one end middle part of second motor (511) is equipped with second pivot (5111), lateral wall fixedly connected with second runner (5112) that second motor groove (51) was run through to the one end that second motor (511) was kept away from in second pivot (5111), one of them be equipped with drive chain (6) between first runner (1111) and second runner (5112).
3. The soil remediation drug spray apparatus of claim 1, wherein: the bottom plate (1) is kept away from fixed orientation wheel (121) that is equipped with mutual symmetry in one end bottom surface of changeing roller (2), the both sides of orientation wheel (121) are equipped with second connecting rod (12) of mutual symmetry, four the top of second connecting rod (12) all with the bottom surface fixed connection of bottom plate (1).
4. A soil remediation agent spraying device for thick surfaces as claimed in claim 1 or claim 3, wherein: the bottom end of the rotating roller (2) and the bottom ends of the two directional wheels (121) are positioned on the same horizontal plane, and the bottom plate (1) inclines towards one end of the rotating roller (2).
5. The soil remediation drug spray apparatus of claim 3, wherein: the middle part of the directional wheel (121) is provided with a wheel shaft in a penetrating way, and two ends of the wheel shaft are respectively embedded into adjacent surfaces of second connecting rods (12) with two sides symmetrical to each other.
6. The soil remediation drug spray apparatus of claim 3, wherein: the outer side of the directional wheel (121) is provided with a plurality of grooves distributed in an annular array.
7. The soil remediation drug spray apparatus of claim 1, wherein: one end of the bottom plate (1) far away from the rotating roller (2) is fixedly connected with a handle (13).
CN202011117131.XA 2020-10-19 2020-10-19 Soil remediation agent sprinkler to thick and solid top layer Pending CN112246859A (en)

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Application Number Priority Date Filing Date Title
CN202011117131.XA CN112246859A (en) 2020-10-19 2020-10-19 Soil remediation agent sprinkler to thick and solid top layer

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113748768A (en) * 2021-09-07 2021-12-07 张莉 Agricultural equipment for improving agricultural soil

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209094166U (en) * 2018-10-30 2019-07-12 江苏永威环境科技股份有限公司 A kind of soil restoring device based on microorganism remediation
CN209491169U (en) * 2018-12-10 2019-10-15 上海傲江生态环境科技有限公司 A kind of agricultural land soil reparation medicament spray equipment
CN210386953U (en) * 2019-07-19 2020-04-24 四川嘉源生态发展有限责任公司 Repair liquid sprinkler for soil remediation
CN111069266A (en) * 2019-12-24 2020-04-28 王雨秋 Ecological environment prosthetic devices
CN210787829U (en) * 2019-08-20 2020-06-19 中投环境科技(云南)有限公司 Repairing agent spraying device for soil remediation
CN211437450U (en) * 2019-11-01 2020-09-08 福清市繁远科技有限公司 Soil restoration agent sprinkler for soil restoration

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209094166U (en) * 2018-10-30 2019-07-12 江苏永威环境科技股份有限公司 A kind of soil restoring device based on microorganism remediation
CN209491169U (en) * 2018-12-10 2019-10-15 上海傲江生态环境科技有限公司 A kind of agricultural land soil reparation medicament spray equipment
CN210386953U (en) * 2019-07-19 2020-04-24 四川嘉源生态发展有限责任公司 Repair liquid sprinkler for soil remediation
CN210787829U (en) * 2019-08-20 2020-06-19 中投环境科技(云南)有限公司 Repairing agent spraying device for soil remediation
CN211437450U (en) * 2019-11-01 2020-09-08 福清市繁远科技有限公司 Soil restoration agent sprinkler for soil restoration
CN111069266A (en) * 2019-12-24 2020-04-28 王雨秋 Ecological environment prosthetic devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113748768A (en) * 2021-09-07 2021-12-07 张莉 Agricultural equipment for improving agricultural soil

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Application publication date: 20210122

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