CN117548476B - Contaminated soil remediation agent application device and method - Google Patents
Contaminated soil remediation agent application device and method Download PDFInfo
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- CN117548476B CN117548476B CN202410028240.6A CN202410028240A CN117548476B CN 117548476 B CN117548476 B CN 117548476B CN 202410028240 A CN202410028240 A CN 202410028240A CN 117548476 B CN117548476 B CN 117548476B
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- 239000002689 soil Substances 0.000 title claims abstract description 44
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 43
- 238000005067 remediation Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 167
- 239000007921 spray Substances 0.000 claims abstract description 98
- 239000000843 powder Substances 0.000 claims abstract description 74
- 239000003595 mist Substances 0.000 claims abstract description 44
- 239000000203 mixture Substances 0.000 claims abstract description 41
- 238000007599 discharging Methods 0.000 claims abstract description 21
- 238000009826 distribution Methods 0.000 claims abstract description 16
- 238000010276 construction Methods 0.000 claims abstract description 15
- 238000003892 spreading Methods 0.000 claims abstract description 12
- 230000007480 spreading Effects 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims description 38
- 238000005507 spraying Methods 0.000 claims description 20
- 239000003814 drug Substances 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 10
- 230000001012 protector Effects 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 238000000889 atomisation Methods 0.000 claims description 4
- 238000003900 soil pollution Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 10
- 239000012298 atmosphere Substances 0.000 abstract description 3
- 239000003337 fertilizer Substances 0.000 description 14
- 238000011049 filling Methods 0.000 description 9
- 238000002156 mixing Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000008177 pharmaceutical agent Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B49/00—Combined machines
- A01B49/04—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Environmental Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a contaminated soil remediation agent application device and a method, wherein the device comprises a vehicle-mounted platform and a comprehensive tank arranged on the vehicle-mounted platform, the comprehensive tank is connected with a broadcast application row, and the comprehensive tank comprises a powder tank and a water tank; the spreading row comprises a plurality of discharging spray cylinders connected side by side, each discharging spray cylinder is provided with a powder-gas mixture spray head and a water mist spray head, the powder-gas mixture spray heads are connected with the powder tank through a material distribution pipe, and the water mist spray heads are connected with the water tank through a water distribution pipe; the water mist spray head is positioned below the powder-gas mixture spray head, and the powder-gas mixture and the water mist are mixed and sprayed out in the discharging spray cylinder. The invention has the advantages of less construction dust, less secondary pollution to the atmosphere, less water consumption, no need of relying on an unstable water source in a construction field, and convenient and rapid large-scale construction.
Description
Technical Field
The invention relates to the technical field of polluted soil restoration, in particular to a device and a method for applying a polluted soil restoration agent.
Background
In the remediation treatment of contaminated farmland soil, the powdered medicament is increasingly used due to low manufacturing cost and good treatment effect. In the restoration of large areas of cultivated land, corresponding mechanical devices are generally used to apply the powdered medicament. However, since the powder-type pharmaceutical agent has fine particles (particle diameter of 0.15mm or less), a lot of dust is easily generated during the application process, and secondary pollution is caused, and this problem has not been solved effectively.
Currently, the mainstream applicators include casting types, watering sprays, and the like. The main principle of the throwing equipment is that a powdery soil remediation agent falls on a throwing disc and is thrown out along with a rotary centrifugal force, for example, chinese patent application (application number: 201320137696.3) discloses a single-disc fertilizer distributor which comprises a frame, a fertilizer box, a fertilizer output adjusting device, a centrifugal fertilizer distributor and a fertilizer distributing driving device, wherein a fertilizer outlet is formed in the bottom of the fertilizer box, and the fertilizer output adjusting device is arranged at the fertilizer outlet; the centrifugal fertilizer distributor is arranged below the fertilizer output regulating device; the fertilizer spreading driving device is arranged on the frame, and is connected with the centrifugal fertilizer spreading device and drives the centrifugal fertilizer spreading device to rotate.
Dust is easy to fly along with wind in the construction process of throwing type application equipment, and secondary pollution is heavy. In order to solve the problem that dust is easy to drift, chinese patent application publication No. CN220044109U discloses a soil remediation agent applicator, which is provided with a plurality of powder grooves uniformly on the periphery of the powder taking roller, a powder guide plate is arranged below the powder taking roller, and part of dust drift can be blocked to a certain extent by separating the powder grooves and adding the guide plate, but the effect is limited.
The main principle of the water mixing spraying type is that powder soil remediation agent and water are mixed into slurry and then sprayed out through a pipeline, for example, chinese patent application (application number: 201920042453.9) discloses a high-efficiency soil remediation agent spraying device, which comprises a soil remediation agent preparation tank, wherein a charging hopper and a water charging hopper are respectively fixed on two sides of the top surface of a round support plate, a conveying pump is fixedly connected to the top surface of the square An Chengban, a bending feed pipe is fixedly connected to the feed end of the conveying pump, a storage battery is arranged on one side of the bending feed pipe, a hollow column is arranged on one side of the storage battery, a bending discharge pipe is communicated with the top end of the middle of the hollow column, spraying pipes penetrate through two ends of the hollow column, a plurality of spray heads are arranged on the top end of the bottom of each spraying pipe at equal intervals, a stirring mechanism is arranged in the soil remediation agent preparation tank, and a distance adjusting mechanism is arranged between each spraying pipe and the hollow column.
The water consumption of the water-mixing spraying equipment is high, the dependence on the water source of the field is high, the water-mixing spraying equipment is inconvenient to move in the field, frequent water addition is needed in the broadcasting process, the operation efficiency is seriously affected, a method of increasing a water tank is generally adopted in the prior art to reduce the water addition frequency, but the water tank is increased to cause heavy equipment, the energy consumption is increased, the whole movement of the equipment is affected, and the problem of high water consumption cannot be fundamentally solved.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a device and a method for applying a polluted soil remediation medicament, which have the advantages of less construction dust, less possibility of causing secondary pollution to the atmosphere, less water consumption, no need of relying on an unstable water source in a construction field, and convenience for large-scale rapid construction.
The invention provides contaminated soil remediation agent application equipment, which comprises a vehicle-mounted platform and a comprehensive tank arranged on the vehicle-mounted platform, wherein the comprehensive tank is connected with a broadcast application row and comprises a powder tank and a water tank; the spreading row comprises a plurality of discharging spray cylinders connected side by side, each discharging spray cylinder is provided with a powder-gas mixture spray head and a water mist spray head, the powder-gas mixture spray heads are connected with the powder tank through a material distribution pipe, and the water mist spray heads are connected with the water tank through a water distribution pipe; the water mist spray head is positioned below the powder-gas mixture spray head, and the powder-gas mixture and the water mist are mixed and sprayed out in the discharging spray cylinder.
Further improves, the spray angle of the powder-gas mixture spray head is 20-30 degrees, the spray diameter of the water mist spray head is 150-300 mu m, the atomization angle is 45-60 degrees, and the working pressure is 18-22 MPA.
Further improved, the number of the discharging spray cylinders connected side by side is 13-19, and the diameter of each discharging spray cylinder is 10-15cm and the length of each discharging spray cylinder is 1.3-1.5m; the discharge spray cylinder is a vertical straight cylinder, and the outlet of the discharge spray cylinder is positioned at a position 0.15-0.2 m above the ground.
Further improved, the bottom of the powder tank is conical, the top of the water tank is of an inward sinking structure matched with the bottom of the powder tank, the powder tank and the water tank are combined to form a cylindrical combined structure, the volume of the powder tank is 1100-1300L, and the volume of the water tank is 350-500L.
Further improved, the top of the powder tank is provided with a movable cover plate, and the cover plate is sealed with the powder tank through a lock catch, a lock catch groove and a sealing ring; the outer side of the powder tank is provided with a feeding plate, a discharge hole, an overpressure protector and a pressure gauge, the overpressure protector and the pressure gauge are communicated with the interior of the powder tank, and the discharge hole is connected with a powder-gas mixture spray head through a material distribution pipe; the water tank is provided with a water inlet, the outside of the water tank is provided with a notch, a water pump is arranged in the notch, the water pump is powered and controlled by the vehicle-mounted platform, the water inlet of the water pump is connected with the water tank, and the water outlet is connected with the water mist spray head through a water delivery pipe and a water distribution pipe.
Further improvement, the vehicle-mounted platform is provided with a structural frame, and the comprehensive tank is placed on the structural frame; the structure frame is connected with a lifting support, and the broadcasting row is arranged on the lifting support and realizes vertical displacement through the lifting support; the lifting support comprises a motor, a sliding rail and a supporting frame, wherein the supporting frame is respectively and rigidly connected with two points of the upper fixing frame and the lower fixing frame of the broadcasting row, and the motor rotates to drive the broadcasting row to lift along the sliding rail through the supporting frame.
Further improved, the vehicle-mounted platform comprises a platform body, a hanging frame and an air compressor, wherein the comprehensive tank is fixed on the platform body through the hanging frame, and an air supply port of the air compressor is connected with the comprehensive tank through an air inlet pipe.
The invention also provides a method for applying the polluted soil remediation agent, which comprises the steps of mixing the polluted soil remediation agent powder with gas to form a powder-gas mixture, spraying the powder-gas mixture by a powder-gas mixture spray head, spraying the powder-gas mixture to a water mist area formed by a water mist spray head, enabling water mist particles to be attached to the surfaces of powder particles, and spraying the powder particles to soil along the vertical direction after the powder particles collide with each other to form large particles. The spray angle of the powder-gas mixture spray head is 20-30 degrees, the spray diameter of the water mist spray head is 150-300 mu m, the spray angle is 45-60 degrees, and the working pressure is 18-22 MPA.
The method specifically comprises the following steps:
1) Setting contaminated soil remediation agent application equipment;
2) Opening the cover plate, and pouring the soil remediation agent into the powder tank;
3) The cover plate is tightly covered, so that the lock catch is arranged in the lock catch groove, the powder tank is completely sealed, and the water tank is filled with clean water through the water inlet;
4) The equipment moves to a construction field, a vehicle-mounted platform air compressor is started, an air inlet is opened, and the powder tank is pressurized to 0.3-0.5 MPA;
5) Setting the water content of the cylinder mouth particles and the discharge spraying cylinder agent flow according to the physicochemical properties of the soil remediation agent, the soil pollution condition and the remediation treatment target;
6) Starting a water pump, starting a water mist spray head to spray, and automatically calculating the liquid flow of the spray head by a central controller according to two parameters of powder flow and water content of nozzle particles (the liquid flow of the spray head=1.4×the discharged spray cylinder agent flow×the water content of nozzle particles);
7) The discharge hole is opened, the powder-gas mixture spray head sprays powder-gas mixture, the powder-gas mixture sprays water mist, so that water mist particles are attached to the surfaces of powder particles, and the powder particles collide with each other to form large particles and then spray to soil along the vertical direction;
8) Under the load of a vehicle-mounted platform, the equipment starts moving operation, the running speed is 5-10km/h, the comprehensive tank ground clearance height is kept to be 0.5-0.7 m in the moving process, and the ground clearance height is broadcast to be 0.15-0.2 m;
9) After the medicament or water is used up, adding the medicament or water;
10 Repeating the steps until the broadcasting is completed.
The invention has the beneficial effects that:
1. the powder is sprayed out from the powder-gas mixture spray head and passes through a water mist area of 1.15-1.35m, water mist particles are attached to the surfaces of powder particles, when dust particles collide with each other, the water mist is wrapped on the surfaces, and the water mist particles are bonded together to form larger particles (the particle size is 0.5-1.5 mm), so that the influence of gravity is increased, the water mist has certain humidity (5% -8%), the water mist can be quickly dropped onto and attached to the surface of soil after being released from a cylinder opening, construction dust is reduced, and secondary pollution to the atmosphere is avoided.
2. The spreading part adopts a small unit separation mode, each small unit adopts a vertical straight cylinder, powder moves vertically along with air flow in the cylinder from top to bottom, and is not released from the cylinder opening until the powder is 0.15-0.2 m from the ground, the spreading surface is small, and the final falling speed is high, so that the powder is difficult to drift along with wind transversely and remotely.
3. The existing mixed slurry is replaced by liquid spraying, the automatic regulating and controlling system can automatically regulate the spraying liquid flow according to the powder spraying flow and the water content of the nozzle particles, the weight of clear water consumed in the construction process is only 7% -11% of the weight of the medicament, and the powder can be applied to 4-7 cans of medicament after 1 water filling, so that frequent water filling is not needed, and the device can be operated with high efficiency in the whole operation process.
4. The device is provided with a water tank and accessory devices with larger volume, the device can be moved to the pit, the river and the ditch for water supplement, and can also adopt an independent movable water source for water filling, so that the device does not need to rely on an unstable water source in a construction field, and is convenient for large-scale rapid construction.
5. The mechanical, centralized and informationized operation can accurately control the spray intensity, ensure the dust fall effect, save the water for spraying and simultaneously ensure that wet dust is easy to shake off. Except for feeding, closing a cover and filling water, all other actions of the equipment, such as movement, lifting, pressurization, filling water, spraying and the like, related to the operation are mechanized operation, and operation control is centralized in a driving position.
6. The water content of particles in the discharge spray cylinder is controlled to be 5% -8% after the particles are adhered by the water mist particles, so that the particles can keep fluffy on the premise of having larger weight, and the particles can shake and fall along with the forward movement of the whole equipment in a short time even if the particles are temporarily adhered to the inner wall of the discharge spray cylinder, thereby avoiding forming a thicker adhesive layer.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a left rear side view schematic of an apparatus;
FIG. 2 is a schematic diagram of a right rear side view of the apparatus;
FIG. 3 is a front view of the device;
FIG. 4 is a schematic view of a vertical split of the synthesis tank;
fig. 5 is a view showing the internal structure of the discharge nozzle.
Wherein, the names corresponding to the reference numerals in the drawings are:
1. a vehicle-mounted platform; 11. a platform body; 12. a hanging frame; 13. an air supply port; 2. an air inlet pipe; 3. a comprehensive tank; 31. a cover plate; 32. a latch groove; 33. a discharge port; 34. an overpressure protector; 35. a pressure gauge; 36. lifting support; 37. a water pump; 38. a water inlet; 39. a structural frame; 310. a water tank; 311. a powder tank; 312. a loading plate; 4. a discharge pipe; 5. a water pipe; 6. spreading and discharging; 61. a material distribution pipe; 62. discharging spray cylinder; 63. a fixing frame; 64. a water distribution pipe;
62-1, a powder-gas mixture nozzle; 62-2, a water mist nozzle.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The specific implementation mode of the contaminated soil remediation agent application device provided by the invention is shown in figures 1-5, and as shown in figures, the embodiment provides the contaminated soil remediation agent application device which comprises a vehicle-mounted platform 1, an air inlet pipe 2, a comprehensive tank 3, a discharging pipe 4, a water delivery pipe 5 and a broadcasting and discharging pipe 6. The vehicle-mounted platform 1 consists of a platform body 11, a suspension bracket 12 and an air compressor, wherein the air compressor is provided with an air supply port 13; the comprehensive tank 3 consists of a cover plate 31, a locking groove 32, a discharge hole 33, an overpressure protector 34, a pressure gauge 35, a lifting support 36, a water pump 37, a water filling port 38, a structural frame 39, a water tank 310, a powder tank 311 and a feeding plate 312; the spreading row 6 consists of a distributing pipe 61, a discharging spray cylinder 62, a fixing frame 63 and a water distributing pipe 64. The discharging spray cylinder is provided with a powder-gas mixture spray head 62-1 and a water mist spray head 62-2. The vehicle-mounted platform 1 is an agricultural tractor, the output power is 130kw, compressed air can be provided, the vehicle-mounted platform is provided with a hanging frame 12, the hanging frame 12 has a lifting function, and the comprehensive tank 3 is hinged with the vehicle-mounted platform 1 at three points through the hanging frame 12.
The main body of the comprehensive tank 3 consists of a powder tank 311 and a water tank 310, wherein the powder tank 311 is a combination of a cylinder (upper part) and a cone (lower part), the water tank 310 is a combination of a cylinder with an inward-sinking cone and a notch at the rear end, and the powder tank 311 and the water tank are vertically nested and welded together to form a cylinder with a complete appearance. The volume of the powder tank 311 is 1100L, and the volume of the water tank 310 is 350L. An air inlet is arranged at the notch of the conical part of the powder tank 311, which faces the rear end of the water tank 310, and is communicated with the bottom of the powder tank 311.
The cylindrical combined structure of the comprehensive tank 3 is arranged on a structural frame 39, and the structural frame 39 is composed of an upper round steel bar, a lower round steel bar, four upright posts and a bottom plate. The cover plate 31 on the powder tank 311 is provided with a front lock catch and a rear lock catch and a handle, the two lock catch grooves 32 are arranged on the left side (60 degrees before left deviation and 60 degrees after left deviation) of the upper edge of the powder tank 311, and the two lock catches are arranged at corresponding positions on the cover plate 31. A circle of inward sunk rubber strips are arranged around the inner side of the cover plate 31, and when the two lock catches are locked with the lock catch grooves 32, the powder tank 311 can be completely sealed. The powder tank 311 can withstand pressures in the range of 0-2MPA. The overpressure protector 34 and the pressure gauge 35 are both positioned at the rear of the powder tank 311 and are both communicated with the interior of the powder tank 311, the fluid release pressure of the overpressure protector 34 is 0.8MPA, and the measurement limit value of the pressure gauge 35 is 1MPA. The loading plate 312 is located at the left side of the powder tank 311, is substantially rectangular, and has a center line located at the front 30 ° left of the powder tank 311. The water pump 37 is arranged above a notch formed in the water tank 310, is powered and controlled by the vehicle-mounted platform 1, and has a water inlet connected with the bottom of the water tank 310 and a water outlet connected with the water pipe 5. The water inlet 38 is positioned on the left side of the rear side of the water tank 310 and extends from the side of the left rear upright post of the structural frame 39 by a length of 10cm. The lifting support 36 is fixed on the structural frame 39 and consists of a motor, two slide rails and two support frames, and each support frame is respectively and rigidly connected with two points of the upper and lower fixing frames 63 of the broadcasting row 6. The lifting of the supporting frame can be driven by the rotation of the motor, so that the broadcasting and discharging row 6 is driven to lift, and the height of the discharging spray drum 62 is adjusted according to actual needs.
The spreading row 6 is provided with a plurality of discharge spouts 62 (16 in total) which are just connected side by side, and each discharge spout 62 has a diameter of 12cm and a length of 1.5m. Each discharging spray cylinder 62 is internally provided with a powder-gas mixture spray head 62-1 and a water mist spray head 62-2, each powder-gas mixture spray head 62-1 is connected with the water distribution pipe 61, and each water mist spray head 62-2 is connected with the water distribution pipe 64. The powder-gas mixture spray head 62-1 is positioned at the upper end of the discharge spray cylinder 62, and the water mist spray head 62-2 is positioned at a position of 15cm right below the powder-gas mixture spray head 62-1. The injection angle of the powder-gas mixture nozzle 62-1 is 20 degrees; the spray diameter of the water mist spray head 62-2 is 150-200 mu m, the atomization angle is 45 degrees, and the working pressure is 18 MPA. The right end of the water distribution pipe 61 is connected with a discharge hole through a discharge pipe, and the right end of the water distribution pipe 61 is connected with an outlet of the water pump 37 through a water pipe 5.
The air supply port 13, the discharge port 33, the water filling port 38 and the water pump 37 all have the functions of opening and closing and controlling flow.
All the power required by the components is provided by the vehicle-mounted platform 1. In the moving operation, the actions of moving, lifting, pressurizing, water filling, spraying, material spraying and the like can be controlled electrically by a driver.
The specific implementation mode of the soil remediation agent application method provided by the invention is as follows:
A. the cover plate is opened, and the soil restoration agent is poured into the powder tank;
B. the cover plate is tightly covered, so that the lock catch is arranged in the lock catch groove, and the powder tank is completely sealed;
C. filling clear water into the water tank through a water inlet;
D. the equipment moves to a construction field, a vehicle-mounted platform air compressor is started, an air inlet is opened, and the powder tank is pressurized to 0.4 MPA;
E. according to the physicochemical properties of the soil remediation agent, the soil pollution condition and the remediation treatment target, setting the water content of the nozzle particles to be 6% and the discharge spraying drum agent flow to be 0.3kg/s (based on dry weight);
F. starting a water pump, starting a water mist nozzle to spray, and automatically calculating the liquid flow of the nozzle to be 0.025L/s by a central controller according to two parameters of powder flow and water content of nozzle particles;
G. the discharge hole is opened, and the powder-gas mixture nozzle starts to spray the powder-gas mixture;
H. under the load of a vehicle-mounted platform, the equipment starts moving operation, the running speed is 5km/h, the comprehensive tank ground clearance height is kept to be 0.5-0.7 m in the moving process, and the ground clearance height is broadcast to be 0.15-0.2 m;
I. after the medicament or water is used up, adding the medicament or water;
J. the above process is repeated.
After the applicant uses the equipment and the method for spreading the soil remediation agent according to the embodiment 1 of the invention to carry out experiments, the weight of the clean water consumed in the construction process is only 7% -11% of the weight of the agent, the agent can be applied to 4-7 cans of agents after being filled with water for 1 time, the agent has certain humidity, and the agent can quickly fall onto and adhere to the soil surface after being released from a barrel opening, so that no obvious drifting phenomenon exists.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for the equipment examples, what has been described above is merely a preferred embodiment of the invention, which, since it is substantially similar to the method examples, is described relatively simply, as relevant to the description of the method examples. The foregoing is merely illustrative of specific embodiments of the present invention, and the scope of the invention is not limited thereto, since modifications and substitutions will be readily made by those skilled in the art without departing from the spirit of the invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (8)
1. The utility model provides a contaminated soil restoration medicament application equipment, includes on-vehicle platform and installs the comprehensive jar on-vehicle platform, synthesizes the jar and is connected with and spreads the fields row, its characterized in that: the comprehensive tank comprises a powder tank and a water tank; the spreading row comprises a plurality of discharging spray cylinders connected side by side, each discharging spray cylinder is provided with a powder-gas mixture spray head and a water mist spray head, the powder-gas mixture spray heads are connected with the powder tank through a material distribution pipe, and the water mist spray heads are connected with the water tank through a water distribution pipe; the water mist spray head is positioned below the powder-gas mixture spray head, and the powder-gas mixture and the water mist are mixed and sprayed out in the discharging spray cylinder; the spray angle of the powder-gas mixture spray head is 20-30 degrees, the spray diameter of the water mist spray head is 150-300 mu m, the atomization angle is 45-60 degrees, and the working pressure is 18-22 MPa; 13-19 discharge spouts are connected side by side, and each discharge spout has a diameter of 10-15cm and a length of 1.3-1.5m; the discharge spray cylinder is a vertical straight cylinder, and the outlet of the discharge spray cylinder is positioned at a position 0.15-0.2 m above the ground.
2. The contaminated soil remediation agent application apparatus of claim 1 wherein: the powder tank bottom is the toper, and the water tank top is with powder tank bottom matched with invagination structure, and powder tank and water tank combination form cylindrical integrated configuration, and powder tank volume is 1100-1300L, and water tank volume is 350-500L.
3. The contaminated soil restoration agent application apparatus according to claim 1 or 2, wherein: the top of the powder tank is provided with a movable cover plate, and the cover plate is sealed with the powder tank through a lock catch, a lock catch groove and a sealing ring; the outer side of the powder tank is provided with a feeding plate, a discharge hole, an overpressure protector and a pressure gauge, the overpressure protector and the pressure gauge are communicated with the interior of the powder tank, and the discharge hole is connected with a powder-gas mixture spray head through a material distribution pipe; the water tank is provided with a water inlet, the outside of the water tank is provided with a notch, a water pump is arranged in the notch, the water pump is powered and controlled by the vehicle-mounted platform, the water inlet of the water pump is connected with the water tank, and the water outlet is connected with the water mist spray head through a water delivery pipe and a water distribution pipe.
4. A contaminated soil remediation agent application apparatus according to claim 3 wherein: the periphery of the comprehensive tank is provided with a structural frame, and the comprehensive tank is placed on the structural frame; the structure frame is connected with a lifting support, and the broadcasting row is arranged on the lifting support and realizes vertical displacement through the lifting support; the lifting support comprises a motor, a sliding rail and a supporting frame, wherein the supporting frame is respectively and rigidly connected with the upper fixing frame and the lower fixing frame of the broadcasting row at two points, and the motor rotates to drive the broadcasting row to lift along the sliding rail through the supporting frame.
5. The contaminated soil remediation agent application apparatus of claim 4 wherein: the vehicle-mounted platform comprises a platform body, a suspension bracket and an air compressor, wherein the comprehensive tank and the broadcast discharge are fixed on the platform body through the suspension bracket, and an air supply port of the air compressor is connected with the comprehensive tank through an air inlet pipe.
6. A method of applying a contaminated soil restoration agent using the apparatus for applying a contaminated soil restoration agent according to claim 5, characterized by: the polluted soil remediation agent powder and gas are mixed into a powder-gas mixture, and then the powder-gas mixture is sprayed out of a powder-gas mixture spray nozzle to a water mist area formed by the water mist spray nozzle, so that water mist particles are attached to the surfaces of powder particles, and the powder particles collide with each other to form large particles and then are sprayed to soil along the vertical direction.
7. The method of applying a contaminated soil restoration agent according to claim 6, wherein: the spray angle of the powder-gas mixture spray head is 20-30 degrees, the spray diameter of the water mist spray head is 150-300 mu m, the atomization angle is 45-60 degrees, and the working pressure is 18-22 MPa.
8. The method for applying a contaminated soil restoration agent according to claim 6, comprising the steps of:
1) Providing a contaminated soil remediation agent application apparatus of claim 5;
2) Opening the cover plate, and pouring the soil remediation agent into the powder tank;
3) The cover plate is tightly covered, so that the lock catch is arranged in the lock catch groove, the powder tank is completely sealed, and the water tank is filled with clean water through the water inlet;
4) The equipment moves to a construction field, a vehicle-mounted platform air compressor is started, an air inlet is opened, and the powder tank is pressurized to 0.3-0.5 MPa;
5) Setting the water content of the cylinder mouth particles and the discharge spraying cylinder agent flow according to the physicochemical properties of the soil remediation agent, the soil pollution condition and the remediation treatment target;
6) Starting a water pump, starting a water mist nozzle to spray, and automatically calculating the liquid flow of the nozzle by a central controller according to two parameters of powder flow and water content of particles at a nozzle;
7) The discharge hole is opened, the powder-gas mixture spray head sprays powder-gas mixture, the powder-gas mixture sprays water mist, so that water mist particles are attached to the surfaces of powder particles, and the powder particles collide with each other to form large particles and then spray to soil along the vertical direction;
8) Under the load of a vehicle-mounted platform, the equipment starts moving operation, the running speed is 5-10km/h, the comprehensive tank ground clearance height is kept to be 0.5-0.7 m in the moving process, and the ground clearance height is broadcast to be 0.15-0.2 m;
9) After the medicament or water is used up, adding the medicament or water;
10 Repeating the steps until the broadcasting is completed.
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| CN216150667U (en) * | 2021-08-16 | 2022-04-01 | 江苏隆昌化工有限公司 | Soil conditioner spreads fertilizer over fields, spraying all-in-one |
| CN114917224A (en) * | 2022-03-16 | 2022-08-19 | 黄山中皇制药有限公司 | Production and batching process and batching equipment for valsartan levamlodipine composition |
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| JP2003311251A (en) * | 2002-04-19 | 2003-11-05 | Fuji Kiso Kogyo Kk | Method for conditioning contaminated soil |
| CN202566090U (en) * | 2012-05-03 | 2012-12-05 | 南京林业大学 | Biopesticide spraying device |
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| CN117548476A (en) | 2024-02-13 |
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