Soil remediation device for ecological environment governance and use method of soil remediation device

Abstract

The invention belongs to the technical field of soil remediation equipment, and particularly relates to a soil remediation device for ecological environment governance and a using method thereof.The soil remediation device comprises a moving trolley, the upper surface of the moving trolley is fixedly connected with a remediation agent box, and the inner wall of the bottom end of the remediation agent box is connected with a liquid supply mechanism. According to the soil remediation device, the distribution range and uniformity of the chemical soil remediation agent are effectively improved through gas explosion, and dense drilling for arrangement of the chemical soil remediation agent is not needed, so that the convenience and efficiency of soil remediation can be improved, the cost of soil remediation can be reduced, and the soil remediation effect is improved. Meanwhile, in the soil remediation process, the air permeability of the soil can be improved, root development of surface plants can be promoted, soil remediation is accelerated through the surface plants, the soil remediation effect is effectively improved, and the success rate of ecological environment treatment can be increased; and the use reliability of the soil remediation device is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of soil remediation equipment, and in particular relates to a soil remediation device for ecological environment governance and a use method thereof. Background Art

[0002] Soil remediation in ecological environment governance is the process of restoring the ecological functions of polluted or degraded soil. The soil may exceed the standard of pollutants such as heavy metals, organic matter, and pesticide residues due to industrial pollution, abuse of agricultural chemicals, landfill and other factors. The remediation methods include physical remediation, such as soil replacement and heat treatment to separate pollutants, chemical remediation is the use of chemical reagents to react with pollutants to fix and degrade them, and biological remediation is to purify the soil through plant absorption and microbial decomposition. It is crucial to ensure the safety of agricultural products and maintain ecological balance. For example, the patent authorization announcement number is CN117443924B, which discloses a soil remediation device for ecological environment governance.

[0003] At present, when the soil is repaired by a soil remediation device and a chemical remediation agent, the drilling structure of the soil remediation device will be inserted into the ground to produce a hole, and then the soil remediation device will transport the chemical soil remediation agent into the hole, and finally the chemical soil remediation agent in the hole will be dispersed into the soil around the drill hole for repair. However, the repair process is affected by the soil density, and the dispersion range of the chemical soil remediation agent is small, resulting in a small soil repair range, and dense drilling is required to inject the chemical soil remediation agent, which not only affects the convenience and efficiency of soil remediation, but also easily causes the local soil to have an excessively high content of chemical soil remediation agents, which easily causes a waste of chemical soil remediation agents and increases the cost of soil remediation. In addition, excessively high concentrations of chemical soil remediation agents are also likely to affect the survival rate of surface plants. If the surface plants wither, it will further affect the effect of soil remediation and the success rate of ecological environment governance.

[0004] To this end, we propose a soil remediation device for ecological environment governance and a method of using the device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a soil remediation device for ecological environment management and a method of using the same in order to solve the above problems.

[0006] To achieve the above-mentioned object, the present invention adopts the following technical scheme: a soil remediation device for ecological environment governance, comprising a mobile vehicle, a remediation agent box is fixedly connected to the upper surface of the mobile vehicle, and a liquid supply mechanism is connected to the inner wall of the bottom end of the remediation agent box; The side wall of the repair agent box is fixedly connected to an air storage box, a plurality of circular holes are provided on the lower surface of the air storage box, and a lifting cylinder is movably connected to the hole wall of the circular hole, a normally closed solenoid valve is fixedly connected to the top inner wall of the lifting cylinder, two symmetrically distributed liquid guide grooves are provided on the top outer wall of the lifting cylinder, a pointed cannula is fixedly connected to the bottom end of the lifting cylinder, a plurality of liquid spray holes are provided on the outer wall of the pointed cannula, an iron moving bar is fixedly sleeved on the outer wall of the iron moving bar, a sealing ring is sleeved on the outer wall of the sealing ring, and the outer wall of the sealing ring is movably and sealingly connected to the inner wall of the air storage box; A rectangular through hole is provided on the upper surface of the mobile vehicle, and a limit cover is fixedly connected to the hole wall of the rectangular through hole, and a plurality of limit holes cooperating with the lifting cylinder are provided on the upper surface of the limit cover; The top outer walls of the plurality of pointed cannulas are all fixedly sleeved with a contact and pressure mechanism; An alarm is fixedly connected to the upper surface of the repair agent box, and an air supply mechanism and a PLC controller are fixedly connected to the outer wall of the air storage box.

[0007] In the above-mentioned soil remediation device for ecological environment governance, the liquid supply mechanism includes a water pump connected to the inner wall of the bottom end of the remediation agent box, the output end of the water pump is fixedly connected to a water pipe, the liquid outlet end of the water pipe passes through the upper surface of the remediation agent box and is fixedly connected to a control solenoid valve, the liquid outlet end of the control solenoid valve is fixedly connected to an electronic flow meter, and the liquid outlet end of the electronic flow meter is fixedly connected to the upper surface of the air storage box.

[0008] In the above-mentioned soil remediation device for ecological environment governance, the air supply mechanism includes an air pump fixedly connected to the outer wall of the air storage box, the air outlet end of the air pump is fixedly connected to a first reversing solenoid valve, one of the air outlet ends of the first reversing solenoid valve is fixedly connected to a first conduit, the air inlet end of the air pump is fixedly connected to a second reversing solenoid valve, one of the air inlet ends of the second reversing solenoid valve is fixedly connected to a second conduit, the bottom end of the second conduit is fixedly connected to the upper surface of the air storage box, the bottom end of the first conduit is fixedly connected to the tube wall of the second conduit, and an air pressure sensor is fixedly embedded on the upper surface of the air storage box.

[0009] In the above-mentioned soil remediation device for ecological environment governance, the contact and pressure mechanism includes a block fixedly sleeved on the outer wall of the pointed tube, a countersunk hole is opened on the lower surface of the block, and a T-shaped insulating rod is movably connected to the hole wall of the countersunk hole, a first spring is sleeved on the outer wall of the bottom end of the T-shaped insulating rod, a conductive block is fixedly sleeved on the top end of the T-shaped insulating rod, an insulating tube is provided on the outer wall of the conductive block, the bottom end of the insulating tube is fixedly connected to the upper surface of the baffle ring, and two power-carrying rods are fixedly embedded in the outer wall of the top end of the insulating tube.

[0010] In the above-mentioned soil remediation device for ecological environment governance, the outer wall of the limit cover located directly above the two power-carrying rods is provided with a through hole for the two power-carrying rods to pass through.

[0011] In the above-mentioned soil remediation device for ecological environment management, the top ends of the plurality of lifting cylinders are fixedly connected with rubber buffer blocks, and the side walls of the rubber buffer blocks are provided with a plurality of buffer through holes.

[0012] In the above-mentioned soil remediation device for ecological environment governance, the outer wall of the lifting cylinder is sleeved with a second spring and a limiting electromagnetic ring, the outer wall of the limiting electromagnetic ring is fixedly connected to the inner wall of the air storage box, and the two ends of the second spring are respectively fixedly connected to the inner wall of the air storage box and the lower surface of the iron moving bar.

[0013] In the above-mentioned soil remediation device for ecological environment governance, a battery and a diesel generator are fixedly connected to the upper surface of the mobile vehicle, and a traction ring is fixedly connected to the side end of the mobile vehicle.

[0014] A method for using a soil remediation device for ecological environment management, the method comprising the following steps: Step S1, first inject the prepared chemical soil remediation agent into the remediation agent box for standby use, and at the same time connect the mobile vehicle to the tractor through the traction ring, and then move the mobile vehicle to the position where soil remediation is required by the tractor; Step S2, start the air pump, increase the air pressure in the air storage box by supplying air through the air pump, then use the air pressure, the sealing ring and the iron moving bar to move the lifting cylinder and the pointed cannula downward, and insert the pointed cannula into the surface soil, while the liquid spray hole is located inside the surface soil; Step S3, after the pointed cannula is inserted into the ground, the two energized rods of the touch-press mechanism are turned on by the conductive block, and a trigger electrical signal is sent to the PLC controller, and the PLC controller records the air pressure value P1 detected by the air pressure sensor in the air storage tank according to the trigger electrical signal. At the same time, the PLC controller also controls the liquid supply mechanism to deliver a certain amount of chemical soil remediation agent to the air storage tank, and the limit electromagnetic ring is energized to tightly absorb the iron moving bar that has moved down into place; Step S4, while the PLC controller records the P1 data of the air pressure sensor, the PLC controller also continues to control the air supply mechanism to continue to increase the air pressure of the air storage tank. When the air pressure value of the air storage tank reaches the gas explosion pressure threshold preset by the PLC controller, the PLC controller controls the air pump to close, and the normally closed solenoid valve is powered on to open. Due to the high-pressure environment of the air storage tank, the compressed air in the air storage tank will carry the chemical soil remediation agent and quickly spray out through the lifting cylinder, the pointed cannula and the spray hole, and a gas explosion will occur at the spray hole. The gas explosion process can carry the chemical soil remediation agent to the soil for large-scale uniform distribution; Step S5, after the chemical soil remediation machine finishes spraying, the PLC controller controls the power-on status of the first reversing solenoid valve and the second reversing solenoid valve, so that the air supply mechanism changes from inflation to extraction from the air storage box. During the extraction process, the air pressure sensor monitors the air pressure in the air storage box in real time. By comparing the air pressure value of the air pressure sensor at this time with the P1 value, if the air pressure value at this time is less than half of the P1 value, it means that the soil at the pointed intubation is too dense, and the chemical soil remediation agent cannot be evenly distributed in a large range in the loose soil. On the contrary, if the air pressure value at this time is similar to the P1 value, it means that the soil at the pointed intubation is loose and breathable, and the chemical soil remediation agent can be evenly distributed in a large range in the loose soil, and a second spraying of the chemical soil remediation agent is required for soil remediation; Step S6, during the process of inserting the pointed cannula into the surface soil in step S2, if there is a stone obstruction inside the soil, the pointed cannula cannot be moved downward, and the air inside the air storage box continues to be filled with air by the air pump, so that the air pressure in the air storage box increases sharply. At the same time, after the air pressure sensor detects that the air pressure in the air storage box reaches the high pressure threshold preset by the PLC controller, the PLC controller promptly controls the alarm to flash and alarm, reminding the staff to eliminate the stone obstruction in time, or to change the insertion position of the pointed cannula by a mobile vehicle and resume the soil repair work.

[0015] Compared with the existing technology, the advantages of a soil remediation device for ecological environment governance and its use method are: 1. Through the provided liquid supply mechanism, air supply assembly and touch-and-press mechanism, when the soil remediation device is used, the air pump is started, and the air pressure in the air storage box is increased by the air supply of the air pump. Then, the lifting cylinder and the pointed cannula are moved downward by utilizing the air pressure, the sealing ring and the iron moving bar, and the pointed cannula is inserted into the surface soil, and the liquid spray hole is located inside the surface soil. At the same time, the two energized rods of the touch-and-press mechanism are conducted by the conductive block, and a trigger electrical signal is sent to the PLC controller. The PLC controller records the air pressure value P1 detected by the air pressure sensor in the air storage box at this time according to the trigger electrical signal. At the same time, the PLC controller also controls the liquid supply mechanism to deliver a certain amount of chemical soil remediation agent to the air storage box. When the limit electromagnetic ring is energized, it tightly adsorbs the iron moving bar that has moved down into place. When the PLC controller records the P1 data of the air pressure sensor, the PLC controller also continues to control the air supply mechanism to continue to increase the air storage pressure. When the air pressure in the air tank reaches the gas explosion pressure threshold preset by the PLC controller, the PLC controller controls the air pump to close, and the normally closed solenoid valve is energized to open. Due to the high-pressure environment of the air tank, the compressed air in the air tank will carry the chemical soil remediation agent and quickly spray out through the lifting cylinder, the pointed insert tube and the spray hole, and a gas explosion will occur at the spray hole. The gas explosion process can carry the chemical soil remediation agent to the soil for a large-scale and uniform distribution, thereby increasing the remediation range of the chemical soil remediation agent. At the same time, there is no need to densely drill holes to arrange the chemical soil remediation agent, which saves time and effort, and can avoid the waste of chemical remediation agents and increase the remediation cost. In addition, loosening the soil can also increase the air permeability of the soil, which is more suitable for the root development of surface plants, expand the distribution range of the roots of surface plants, and use surface plants to accelerate soil remediation, further improving the effect of soil remediation.

[0016] 2. Through the air supply mechanism, pressure sensor and pointed cannula, after the chemical soil remediation agent is sprayed, the PLC controller controls the power supply of the first reversing solenoid valve and the second reversing solenoid valve, so that the air supply mechanism changes from inflation to extraction from the air storage tank. During the extraction process, the air pressure sensor monitors the air pressure in the air storage tank in real time. The air pressure value of the air pressure sensor at this time is compared with the P1 value. If the air pressure value at this time is less than half of the P1 value, it means that the soil at the pointed cannula is too dense, and the chemical soil remediation agent cannot be evenly distributed in a large range in the loose soil. On the contrary, if the air pressure value at this time is similar to the P1 value, it means that the soil at the pointed cannula is loose and breathable, and the chemical soil remediation agent can be evenly distributed in a large range in the loose soil. At the same time, a second spraying of the chemical soil remediation agent is required for soil remediation. This mechanism enables the soil remediation device to have the function of soil density detection, and feedback the effect of soil remediation through density detection, further improving the convenience and efficiency of soil remediation, and improving the success rate of ecological environment governance.

[0017] 3. Through the first reversing solenoid valve, the second reversing solenoid valve, the alarm and the pressure sensor, when the pointed cannula is inserted into the soil, if there is a stone obstruction inside the soil, the pointed cannula cannot move downward, and the air in the air storage box continues to be filled with air by the air pump, causing the air pressure in the air storage box to increase sharply. At this time, after the air pressure sensor detects that the air pressure in the air storage box reaches the high pressure threshold preset by the PLC controller, the PLC controller promptly controls the alarm to flash, reminding the staff to eliminate the stone obstruction in time, or to change the insertion position of the pointed cannula by a mobile vehicle, and to re-perform soil remediation work, to ensure that the pointed cannula can be smoothly inserted into the soil for remediation work. This mechanism enables the soil remediation device to have the function of alarming against stone obstruction in the soil, thereby improving the reliability of the use of the soil remediation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a soil remediation device for ecological environment management and a method of using the same provided by the present invention; Figure 2 It is a structural schematic diagram of a partial cross-section of a soil remediation device for ecological environment management and a method of using the same provided by the present invention; Figure 3 It is a structural schematic diagram of the air supply mechanism part of a soil remediation device for ecological environment management and a method for using the same provided by the present invention; Figure 4 It is a structural schematic diagram of a contact and pressure mechanism part of a soil remediation device for ecological environment management and a method for using the same provided by the present invention; Figure 5 It is a structural schematic diagram of a liquid-conducting slot part in a soil remediation device for ecological environment management and a method for using the same provided by the present invention; Figure 6 It is a structural schematic diagram of a pointed insertion pipe part in a soil remediation device for ecological environment management and a method for using the same provided by the present invention; Figure 7 It is a structural schematic diagram of a side view of a limiting cover part in a soil remediation device for ecological environment management and a method for using the same provided by the present invention; Figure 8 It is a structural schematic diagram of a rubber buffer block part in a soil remediation device for ecological environment governance and a use method thereof provided by the present invention.

[0019] In the figure: 1 mobile vehicle, 2 repair agent box, 3 liquid supply mechanism, 31 water pump, 32 water pipe, 33 control solenoid valve, 34 electronic flow meter, 4 air storage box, 5 lifting cylinder, 6 touch pressure mechanism, 61 block, 62 countersunk hole, 63 T-shaped insulating rod, 64 first spring, 65 conductive block, 66 insulating cylinder, 67 power rod, 7 air supply mechanism, 71 air pump, 72 first reversing solenoid valve, 73 first conduit, 74 second reversing solenoid valve, 75 second conduit, 76 air pressure sensor, 8 through hole, 9 second spring, 10 normally closed solenoid valve, 11 liquid guide groove, 12 pointed cannula, 13 liquid spray hole, 14 iron moving bar, 15 sealing ring, 16 limit cover, 17 alarm, 18 PLC controller, 19 rubber buffer block, 20 buffer through hole, 21 limit electromagnetic ring, 22 battery, 23 diesel generator, 24 traction ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figure 1-Figure 8 As shown, a soil remediation device for ecological environment governance includes a mobile vehicle 1, the upper surface of the mobile vehicle 1 is fixedly connected with a battery 22 and a diesel generator 23, the side end of the mobile vehicle 1 is fixedly connected with a traction ring 24, the diesel generator 23 can replenish power to the battery 22 in time, and improve the service life of the soil remediation device, the upper surface of the mobile vehicle 1 is fixedly connected with a repair agent box 2, the bottom inner wall of the repair agent box 2 is connected with a liquid supply mechanism 3, the liquid supply mechanism 3 includes a water pump 31 connected to the bottom inner wall of the repair agent box 2, the output end of the water pump 31 is fixedly connected with a water pipe 32, the liquid outlet end of the water pipe 32 passes through the upper surface of the repair agent box 2, and is fixedly connected with a control solenoid valve 33, the liquid outlet end of the control solenoid valve 33 is fixedly connected with an electronic flow meter 34, and the liquid outlet end of the electronic flow meter 34 is fixedly connected to the upper surface of the air storage box 4.

[0022] The side wall of the repair agent box 2 is fixedly connected to the air storage box 4, and a plurality of circular holes are provided on the lower surface of the air storage box 4, and a lifting cylinder 5 is movably connected to the hole wall of the circular hole. The outer wall of the lifting cylinder 5 is sleeved with a second spring 9 and a limit electromagnetic ring 21, and the outer wall of the limit electromagnetic ring 21 is fixedly connected to the inner wall of the air storage box 4. The two ends of the second spring 9 are respectively fixedly connected to the inner wall of the air storage box 4 and the lower surface of the iron moving bar 14. The second spring 9 generates a restoring force after being compressed, and it is convenient for the pointed cannula 12 to be pulled out of the soil. The top ends of the plurality of lifting cylinders 5 are fixedly connected to rubber buffer blocks 19, and the side walls of the rubber buffer blocks 19 are provided with a plurality of buffer through holes 20. The rubber buffer blocks 19 can raise the lifting cylinder 5 to The top is used for buffering, the top inner wall of the lifting cylinder 5 is fixedly connected with a normally closed solenoid valve 10, the top outer wall of the lifting cylinder 5 is provided with two symmetrically distributed liquid guiding grooves 11, the bottom end of the lifting cylinder 5 is fixedly connected with a pointed plug 12, the outer wall of the pointed plug 12 is provided with a plurality of liquid spray holes 13, the outer walls of the plurality of lifting cylinders 5 are commonly fixedly sleeved with an iron moving bar 14, the outer wall of the iron moving bar 14 is sleeved with a sealing ring 15, the outer wall of the sealing ring 15 is movably and sealedly connected to the inner wall of the air storage box 4, a rectangular through hole is provided on the upper surface of the moving vehicle 1, and the hole wall of the rectangular through hole is fixedly connected with a limiting cover 16, and the upper surface of the limiting cover 16 is provided with a plurality of limiting holes matching the lifting cylinder 5.

[0023] The top outer walls of multiple pointed tubes 12 are fixedly sleeved with a touch-pressing mechanism 6, which includes a stopper 61 fixedly sleeved with the outer wall of the pointed tube 12, a countersunk hole 62 is provided on the lower surface of the stopper 61, and a T-shaped insulating rod 63 is movably connected to the hole wall of the countersunk hole 62, a first spring 64 is sleeved on the bottom outer wall of the T-shaped insulating rod 63, a conductive block 65 is fixedly sleeved on the top of the T-shaped insulating rod 63, an insulating tube 66 is provided on the outer wall of the conductive block 65, the bottom end of the insulating tube 66 is fixedly connected to the upper surface of the retaining ring, two power-carrying rods 67 are fixedly embedded on the top outer wall of the insulating tube 66, and a through hole 8 for the two power-carrying rods 67 to pass through is provided on the outer wall of the limit cover 16 located directly above the two power-carrying rods 67.

[0024] An alarm 17 is fixedly connected to the upper surface of the repair agent box 2, and an air supply mechanism 7 and a PLC controller 18 are fixedly connected to the outer wall of the air storage box 4. The air supply mechanism 7 includes an air pump 71 fixedly connected to the outer wall of the air storage box 4, and the air outlet end of the air pump 71 is fixedly connected to a first reversing solenoid valve 72, and one of the air outlet ends of the first reversing solenoid valve 72 is fixedly connected to a first conduit 73, and the air inlet end of the air pump 71 is fixedly connected to a second reversing solenoid valve 74, and one of the air inlet ends of the second reversing solenoid valve 74 is fixedly connected to a second conduit 75, and the bottom end of the second conduit 75 is fixedly connected to the upper surface of the air storage box 4, and the bottom end of the first conduit 73 is fixedly connected to the tube wall of the second conduit 75, and an air pressure sensor 76 is fixedly embedded on the upper surface of the air storage box 4.

[0025] The water pump 31, the control solenoid valve 33, the air pump 71, the first reversing solenoid valve 72, the second reversing solenoid valve 74, the normally closed solenoid valve 10, the alarm 17 and the limit solenoid ring 21 are all electrically connected to the output end of the PLC controller 18 through wires, the electronic flow meter 34 and the air pressure sensor 76 are all electrically connected to the input end of the PLC controller 18 through wires, and at the same time, the two energizing rods 67 branches are also electrically connected to the input end of the PLC controller 18 through wires. The above-mentioned energizing devices and electrical connections are all prior arts and are well known to those skilled in the art, and will not be repeated here.

[0026] The operating principle of the present invention is described as follows: when the soil needs to be repaired during the ecological environment governance process, the prepared chemical soil repair agent is first injected into the repair agent box 2 for standby use, and at the same time, the mobile vehicle 1 is connected to the tractor through the traction ring 24, and then the mobile vehicle 1 is moved to the position where the soil needs to be repaired by the tractor; Then the PLC controller 18 controls the air pump 71 to start, and the air pump 71 sucks air through the second reversing solenoid valve 74, and the air is injected into the air storage box 4 through the first reversing solenoid valve 72, the first conduit 73 and the second conduit 75. The air in the air storage box 4 pushes the sealing ring 15 and the iron moving bar 14 to move downward, and the iron moving bar 14 moves downward to drive the lifting cylinder 5 to move downward. After the lifting cylinder 5 moves downward, it pushes the pointed cannula 12 to insert into the ground surface, and the spray hole 13 is located inside the surface soil. At the same time, the iron moving bar 14 moves downward to squeeze the second spring 9, so that the second spring 9 is compressed and stores energy; As the pointed cannula 12 is inserted deeper into the ground, the distance between the block 61 and the ground becomes shorter. Finally, when the pointed cannula 12 is completely inserted into the ground, the block 61 contacts the ground and is squeezed in the opposite direction by the ground. At the same time, the T-shaped insulating rod 63 is squeezed in the opposite direction by the ground and moves upward, thereby pushing the conductive block 65 to contact the two energizing rods 67, connecting the circuits of the two energizing rods 67, so that the circuits of the energizing rods 67 send a triggering electrical signal to the PLC controller 18. The PLC controller 18 records the air pressure value P1 detected by the air pressure sensor 76 in the air storage tank 4 according to the triggering electrical signal. At the same time, the PLC controller 18 also controls the water pump 31, the limit electromagnetic ring 21 and the control electromagnetic valve 33 to start. The water pump 31 pumps the repair agent box 2 into the air storage tank 4 through the water pipe 32, the control electromagnetic valve 33 and the electronic flow meter 34. The chemical soil remediation agent is transported to the air storage tank 4 for standby use, and the electronic flow meter 34 monitors the supply of the chemical soil remediation agent in real time, and converts the supply of the chemical soil remediation agent into a supply amount electrical signal and transmits it to the PLC controller 18. If the supply of the chemical soil remediation agent recorded by the electronic flow meter 34 reaches the supply threshold of the remediation agent preset by the PLC controller 18, the PLC controller 18 controls the water pump 31 and the control solenoid valve 33 to shut down and operate. The air pressure sensor 76 can detect the air pressure inside the air storage tank 4 in real time, and convert the air pressure value into an air pressure electrical signal and transmit it to the PLC controller 18. After the limit electromagnetic ring 21 is energized, it generates a strong magnetic attraction and can tightly attract the iron moving bars 14 that are in contact with each other, thereby ensuring that the position of the pointed cannula 12 after being inserted into the ground surface is stable and reliable; When the PLC controller 18 records the P1 data of the air pressure sensor 76, the PLC controller 18 also continues to control the air pump 71 to inject air into the air storage box 4 to increase the air pressure value of the air storage box 4. When the air pressure value of the air storage box 4 reaches the gas explosion pressure threshold value preset by the PLC controller 18, the PLC controller 18 controls the air pump 71 to close, and the normally closed solenoid valve 10 is powered on to open. Due to the high pressure environment of the air storage box 4, the compressed air in the air storage box 4 will carry the chemical soil remediation agent and quickly spray out through the lifting cylinder 5, the pointed cannula 12 and the spray hole 13, and a gas explosion will occur at the spray hole 13, and the airflow generated by the gas explosion will rush to the gas storage box 4. The impact can not only loosen the soil, but also convert the chemical soil remediation agent into water mist. With the help of gas explosion impact and loose soil, the water mist chemical soil remediation agent can be distributed over a larger range and more evenly, thereby increasing the remediation range of the chemical soil remediation agent. At the same time, there is no need to densely drill holes to arrange the chemical soil remediation agent, which saves time and effort, and can avoid the situation where the chemical remediation agent is wasted and the remediation cost is increased. In addition, after the soil is loosened, the air permeability of the soil can be increased, which is more suitable for the root development of surface plants, expands the distribution range of the root system of surface plants, and uses surface plants to accelerate soil remediation, further improving the effect of soil remediation. As the amount of air inside the air storage box 4 decreases, the air pressure inside the air storage box 4 also decreases, making the exhaust speed of the air storage box 4 slower in the later stage of exhaust. In particular, when the air pressure sensor 76 detects that the air pressure of the air storage box 4 reaches the P1 value again, the PLC controller 18 controls the first reversing solenoid valve 72 and the second reversing solenoid valve 74 to be energized, thereby changing the air guide direction of the first reversing solenoid valve 72 and the second reversing solenoid valve 74, so that the air pump 71 changes from inflating the air storage box 4 to exhausting the air. The air pump 71 extracts air through the second conduit 75 and the second reversing solenoid valve 74, and exhausts air through the air outlet end of the first reversing solenoid valve 72. At this time, the air storage box 4 sucks the air in the soil through the lifting cylinder 5, the pointed cannula 12 and the spray hole 13 to replenish and maintain the P1 air pressure. If the value is balanced, it means that the chemical soil remediation agent can be evenly distributed in the loose soil over a large range. At this time, if the soil looseness is poor and the soil is too dense, the air storage tank 4 cannot be adequately supplemented with air, so that the air pressure in the air storage tank 4 is sucked down by the air pump 71. If the air pressure sensor 76 detects that the air pressure value of the air storage tank 4 drops to half of the P1 value, the PLC controller 18 controls the alarm 17 to issue a reminder according to the air pressure electric signal sent by the air pressure sensor 76 at this time, which means that the chemical soil remediation agent cannot be evenly distributed in the loose soil over a large range, so that the soil remediation device is controlled by the staff to perform secondary soil remediation, and in the secondary remediation process, the supply amount of the chemical soil remediation agent delivered to the air storage tank 4 is the initial soil remediation amount. At this time, the supply of chemical soil remediation agent is half of that of the chemical soil remediation agent, which can avoid the situation where the content of chemical soil remediation agent is too much at the local soil remediation position. If the soil looseness is good at this time, the air storage box 4 can get sufficient air compensation, and the air pressure in the air storage box 4 can be maintained near the P1 value. The PLC controller 18 does not control the alarm 17 to alarm. At the same time, the PLC controller 18 controls the limit electromagnetic ring 21, the air pump 71, the first reversing electromagnetic valve 72 and the second reversing electromagnetic valve 74 to cut off the power and stop working. At this time, the iron moving bar 14 loses the magnetic attraction of the limit electromagnetic ring 21, and at the same time moves upward under the restoring force of the compressed second spring 9, and drives the lifting cylinder 5 and the pointed cannula 12 to move upward, so that the pointed cannula 12 is separated from the soil. The soil remediation device is moved to the next soil remediation position by the mobile vehicle 1 to repeat the previous remediation steps. The mechanism uses gas explosion to effectively improve the distribution range and uniformity of chemical soil remediation agents during soil remediation, and does not require dense drilling to arrange chemical soil remediation agents, saving time and effort. This can not only improve the convenience and efficiency of soil remediation, but also avoid the situation where the content of chemical soil remediation agents in local soil is too high, thereby reducing the cost of soil remediation. At the same time, the soil remediation process can also improve the air permeability of the soil, promote the root development of surface plants, expand the distribution range of the roots of surface plants, use surface plants to accelerate soil remediation, effectively improve the effect of soil remediation, and improve the success rate of ecological environment governance.

[0027] In addition, when the pointed cannula 12 is inserted into the soil, if there is an obstruction of stones inside the soil, the pointed cannula 12 cannot move downward, and the air inside the air storage box 4 continues to be filled with air by the air pump 71, causing the air pressure in the air storage box 4 to increase sharply. At this time, after the air pressure sensor 76 detects that the air pressure in the air storage box 4 reaches the high pressure threshold preset by the PLC controller 18, the PLC controller 18 promptly controls the alarm 17 to flash an alarm, reminding the staff to eliminate the stone obstruction in time, or to replace the insertion position of the pointed cannula 12 by the mobile vehicle 1, and to re-perform the soil repair work, to ensure that the pointed cannula 12 can be smoothly inserted into the soil for repair work. This mechanism enables the soil repair device to have the function of alarming against stone obstruction in the soil, thereby improving the reliability of the use of the soil repair device.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A soil remediation device for ecological environment management, comprising a mobile vehicle (1), characterized in that: The upper surface of the mobile vehicle (1) is fixedly connected to a repair agent box (2), and the inner wall of the bottom end of the repair agent box (2) is connected to a liquid supply mechanism (3); The side wall of the repair agent box (2) is fixedly connected to an air storage box (4), a plurality of circular holes are provided on the lower surface of the air storage box (4), and a lifting cylinder (5) is movably connected to the hole wall of the circular hole, a normally closed solenoid valve (10) is fixedly connected to the top inner wall of the lifting cylinder (5), two symmetrically distributed liquid guide grooves (11) are provided on the top outer wall of the lifting cylinder (5), a pointed plug (12) is fixedly connected to the bottom end of the lifting cylinder (5), a plurality of liquid spray holes (13) are provided on the outer wall of the pointed plug (12), an iron moving bar (14) is fixedly sleeved on the outer walls of the plurality of lifting cylinders (5), a sealing ring (15) is sleeved on the outer wall of the iron moving bar (14), and the outer wall of the sealing ring (15) is movably sealed and connected to the inner wall of the air storage box (4); A rectangular through hole is provided on the upper surface of the mobile vehicle (1), and a limit cover (16) is fixedly connected to the hole wall of the rectangular through hole. A plurality of limit holes matching the lifting cylinder (5) are provided on the upper surface of the limit cover (16); The top outer walls of the plurality of pointed cannulas (12) are all fixedly sleeved with a contact and pressure mechanism (6); An alarm (17) is fixedly connected to the upper surface of the repair agent box (2), and an air supply mechanism (7) and a PLC controller (18) are fixedly connected to the outer wall of the air storage box (4).

2. A soil remediation device for ecological environment management according to claim 1, characterized in that: The liquid supply mechanism (3) comprises a water pump (31) connected to the inner wall of the bottom end of the repair agent box (2); the output end of the water pump (31) is fixedly connected to a water pipe (32); the liquid outlet end of the water pipe (32) passes through the upper surface of the repair agent box (2) and is fixedly connected to a control solenoid valve (33); the liquid outlet end of the control solenoid valve (33) is fixedly connected to an electronic flow meter (34); and the liquid outlet end of the electronic flow meter (34) is fixedly connected to the upper surface of the air storage box (4).

3. A soil remediation device for ecological environment management according to claim 2, characterized in that: The air supply mechanism (7) comprises an air pump (71) fixedly connected to the outer wall of the air storage box (4); an air outlet end of the air pump (71) is fixedly connected to a first reversing electromagnetic valve (72); one of the air outlet ends of the first reversing electromagnetic valve (72) is fixedly connected to a first conduit (73); an air inlet end of the air pump (71) is fixedly connected to a second reversing electromagnetic valve (74); one of the air inlet ends of the second reversing electromagnetic valve (74) is fixedly connected to a second conduit (75); the bottom end of the second conduit (75) is fixedly connected to the upper surface of the air storage box (4); the bottom end of the first conduit (73) is fixedly connected to the tube wall of the second conduit (75); and an air pressure sensor (76) is fixedly embedded on the upper surface of the air storage box (4).

4. A soil remediation device for ecological environment management according to claim 3, characterized in that: The contact pressure mechanism (6) comprises a stopper (61) fixedly sleeved with the outer wall of the pointed cannula (12); a countersunk hole (62) is provided on the lower surface of the stopper (61); a T-shaped insulating rod (63) is movably connected to the hole wall of the countersunk hole (62); a first spring (64) is sleeved on the outer wall of the bottom end of the T-shaped insulating rod (63); a conductive block (65) is fixedly sleeved on the top end of the T-shaped insulating rod (63); an insulating tube (66) is provided on the outer wall of the conductive block (65); the bottom end of the insulating tube (66) is fixedly connected to the upper surface of the stop ring; and two power-carrying rods (67) are fixedly embedded on the outer wall of the top end of the insulating tube (66).

5. A soil remediation device for ecological environment management according to claim 4, characterized in that: The outer wall of the limiting cover (16) located directly above the two energizing rods (67) is provided with a through hole (8) for the two energizing rods (67) to pass through.

6. A soil remediation device for ecological environment management according to claim 5, characterized in that: The top ends of the plurality of lifting cylinders (5) are all fixedly connected to a rubber buffer block (19), and the side wall of the rubber buffer block (19) is provided with a plurality of buffer through holes (20).

7. A soil remediation device for ecological environment management according to claim 6, characterized in that: The outer wall of the lifting cylinder (5) is sleeved with a second spring (9) and a limit electromagnetic ring (21); the outer wall of the limit electromagnetic ring (21) is fixedly connected to the inner wall of the air storage box (4); and the two ends of the second spring (9) are respectively fixedly connected to the inner wall of the air storage box (4) and the lower surface of the iron moving bar (14).

8. A soil remediation device for ecological environment management according to claim 7, characterized in that: A storage battery (22) and a diesel generator (23) are fixedly connected to the upper surface of the mobile vehicle (1), and a traction ring (24) is fixedly connected to the side end of the mobile vehicle (1).

9. The method for using the soil remediation device for ecological environment management according to claim 8, characterized in that: The method of use includes the following steps: Step S1, first inject the prepared chemical soil remediation agent into the remediation agent box (2) for standby use, and at the same time connect the mobile vehicle (1) to the tractor through the traction ring (24), and then move the mobile vehicle (1) to the position where soil remediation is required by the tractor; Step S2, starting the air pump (71), supplying air through the air pump (71) to increase the air pressure in the air storage box (4), then using the air pressure, the sealing ring (15) and the iron moving bar (14) to move the lifting cylinder (5) and the pointed insertion tube (12) downward, and inserting the pointed insertion tube (12) into the surface soil, while the liquid injection hole (13) is located inside the surface soil; Step S3, after the pointed cannula (12) is inserted into the ground, the two energizing rods (67) of the contact and pressure mechanism (6) are turned on by the conductive block (65), and a triggering electrical signal is sent to the PLC controller (18). The PLC controller (18) records the air pressure value P1 of the air storage box (4) detected by the air pressure sensor (76) at this time according to the triggering electrical signal. At the same time, the PLC controller (18) also controls the liquid supply mechanism (3) to deliver a fixed amount of chemical soil remediation agent to the air storage box (4), and the limit electromagnetic ring (21) 21 is energized to tightly absorb the iron moving bar (14) that has moved down into place; Step S4, while the PLC controller (18) records the P1 data of the air pressure sensor (76), the PLC controller (18) also continues to control the air supply mechanism (7) to continue to increase the air pressure of the air storage box (4). When the air pressure value of the air storage box (4) reaches the gas explosion pressure threshold value preset by the PLC controller (18), the PLC controller (18) controls the air pump (71) to be turned off, and the normally closed solenoid valve (10) is powered on to be opened. Due to the high pressure environment of the air storage box (4), the compressed air in the air storage box (4) will carry the chemical soil remediation agent and quickly spray out through the lifting cylinder (5), the pointed insert tube (12) and the liquid spray hole (13), and a gas explosion phenomenon will occur at the liquid spray hole (13). The gas explosion process can carry the chemical soil remediation agent to the soil and evenly distribute it over a large range; Step S5, after the chemical soil remediation machine has finished spraying, the PLC controller (18) controls the power supply of the first reversing solenoid valve (72) and the second reversing solenoid valve (74), so that the air supply mechanism (7) changes from inflating to exhausting air from the air storage box (4). During the exhausting process, the air pressure sensor (76) monitors the air pressure in the air storage box (4) in real time. The air pressure value of the air pressure sensor (76) at this time is compared with the P1 value. If the air pressure value at this time is less than half of the P1 value, it means that the soil at the pointed intubation tube (12) is too dense, and the chemical soil remediation agent cannot be evenly distributed over a large area in the loose soil. On the contrary, if the air pressure value at this time is similar to the P1 value, it means that the soil at the pointed intubation tube (12) is loose and breathable, and the chemical soil remediation agent can be evenly distributed over a large area in the loose soil, and a second spraying of the chemical soil remediation agent is required to carry out soil remediation; Step S6, during the process of inserting the pointed cannula (12) into the surface soil in step S2, if there is a stone obstruction in the soil, the pointed cannula (12) cannot be moved downward, and the air in the air storage box (4) continues to be filled with air by the air pump (71), causing the air pressure in the air storage box (4) to increase sharply. At the same time, after the air pressure sensor (76) detects that the air pressure in the air storage box (4) reaches the high pressure threshold value preset by the PLC controller (18), the PLC controller (18) promptly controls the alarm (17) to flash an alarm, reminding the staff to promptly remove the stone obstruction, or to replace the insertion position of the pointed cannula (12) by the mobile vehicle (1) and to resume the soil remediation work.

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