CN212143926U

CN212143926U - Ultrasonic wave is in coordination with chemical remediation petroleum type and is polluted soil integrated device

Info

Publication number: CN212143926U
Application number: CN202020513328.4U
Authority: CN
Inventors: 李丽; 董万涛; 张兴; 陈宁; 王亚军
Original assignee: Chengdu Branch Of China Railway Science Research Institute Co ltd; Lanzhou University of Technology
Current assignee: Chengdu Branch Of China Railway Science Research Institute Co ltd; Lanzhou University of Technology
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-12-15
Anticipated expiration: 2030-04-10

Abstract

The utility model belongs to the technical field of soil repair equipment. In order to improve the effectiveness and convenience of soil remediation, in particular to the soil remediation of the petroleum pollutants on the surface, the utility model discloses an ultrasonic wave synergistic chemical remediation petroleum polluted soil integration device, which comprises a dispensing unit, a medicine feeding unit and an ultrasonic desorption unit; the medicine dispensing unit is provided with a medicine for repairing soil, the medicine feeding unit is provided with a pipeline and an injector, the injector is of a hollow structure, one end of the injector is provided with an injection hole and is inserted into the soil to be repaired, and the other end of the injector is communicated with the medicine dispensing unit through the pipeline; the ultrasonic desorption unit consists of an ultrasonic generator and an ultrasonic vibration rod, wherein one end of the ultrasonic vibration rod is connected with the ultrasonic generator, and the other end of the ultrasonic vibration rod is inserted into the soil to be repaired. The utility model discloses a device can be fast effectual puts in the medicament to soil depths, accomplishes normal position soil remediation, improves soil remediation's efficiency and convenience.

Description

Ultrasonic wave is in coordination with chemical remediation petroleum type and is polluted soil integrated device

Technical Field

The utility model belongs to the technical field of soil remediation, concretely relates to ultrasonic wave is chemical remediation petroleum type in coordination and is polluted soil integrated device.

Background

According to different soil remediation sites, the method can be divided into an in-situ remediation type and an ex-situ remediation type. The ex-situ remediation is to manually transfer the excavated contaminated soil to another specific place and then treat the contaminated soil by adopting various remediation methods, so that the cost is high, the engineering quantity is large, secondary pollution is possibly generated in the excavation and transportation process, the method is only suitable for heavily-contaminated shallow plots or small-area contaminated areas, and the method cannot be adopted when organic pollutants with strong volatility exist in contaminated sites. Compared with ex-situ remediation, the in-situ remediation method has the advantages of simple construction, low cost, short remediation period, relatively wide application, capability of even treating deep polluted soil or underground water, and small disturbance to the surrounding environment, so that the remediation technology is driven by the economic value of urban land for urban industrial polluted sites, has the advantages of good remediation effect, low remediation cost, short time, capability of secondary utilization of soil and the like, and becomes the best choice for in-situ remediation.

Soil remediation can be divided into physical remediation techniques and chemical remediation techniques, depending on the principle of soil remediation. The physical remediation technology is a technology for separating or removing pollutants from soil by using some physical methods; the chemical repairing technology mainly utilizes chemical oxidizing agents to perform chemical oxidation reaction with pollutants, so as to achieve the effect of removing the pollutants.

At present, the method applied to in-situ site remediation in China mainly utilizes screening equipment such as a cylindrical screen and a vibrating screen or stirring and mixing equipment such as an excavator, a concrete mixing station, a mechanical mixing hopper, a soil improvement machine and a rotary cultivator to stir soil so as to form contact with a chemical agent, thereby achieving the remediation effect on the soil. However, the method has a large workload, and needs to perform soil stirring treatment by using large equipment, otherwise, only the remediation treatment of the surface soil can be realized, and the remediation effect of the deep soil cannot be ensured. In addition, for the soil with petroleum pollutants on the surface, the coverage area of the petroleum pollutants can be enlarged in the process of stirring the soil by using equipment, the pollution area is increased, and the soil remediation treatment is further influenced.

SUMMERY OF THE UTILITY MODEL

In order to improve the effectiveness and convenience of soil remediation, in particular to the soil remediation of the petroleum pollutants on the surface, the utility model provides an ultrasonic wave synergistic chemical remediation petroleum polluted soil integration device, which comprises a dispensing unit, a medicine feeding unit and an ultrasonic desorption unit; the soil remediation device comprises a dispensing unit, a medicine conveying unit and a control unit, wherein the dispensing unit is provided with a medicine for remedying soil, the medicine conveying unit is provided with a pipeline and an injector, the injector is of a hollow structure, one end of the injector is provided with an injection hole and is inserted into the soil to be remediated, and the other end of the injector is communicated with the dispensing unit through the pipeline and conveys the medicine into the injector; the ultrasonic desorption unit consists of an ultrasonic generator and an ultrasonic vibration rod, one end of the ultrasonic vibration rod is connected with the ultrasonic generator, and the other end of the ultrasonic vibration rod is inserted into the soil to be restored; the ultrasonic vibrating rod and the injector are arranged in parallel.

Preferably, the ultrasonic desorption unit includes a plurality of ultrasonic vibration rods, and the plurality of ultrasonic vibration rods are distributed in a circumferential direction of the syringe.

Preferably, the dispensing unit comprises a medicine pool and a stirrer, and the stirrer is used for stirring the medicine in the medicine pool.

Preferably, the medicine delivery unit further comprises a high-pressure pump and a check valve; the high-pressure pump and the check valve are sequentially arranged in the pipeline and used for conveying the medicament in the dispensing unit to the injector at high pressure.

Further preferably, the medicine feeding unit further comprises a return pipeline, and the return pipeline is located between the return port of the high-pressure pump and the medicine feeding unit and used for carrying out medicine return conveying.

Preferably, the medicine feeding unit is also provided with a pressure gauge; the pressure gauge is positioned in the pipeline and close to the injector.

Further preferably, the medicine feeding unit is also provided with a flow meter; the flow meter is located in the conduit proximate to the injector.

Preferably, one end of the injector, which is inserted into the soil to be restored, is provided with a plurality of injection holes, and the plurality of injection holes are uniformly distributed along the circumferential direction.

Preferably, the outer surface of the syringe is provided with graduations along the axial direction thereof.

Preferably, the syringe is connected with the pipeline by a quick connector made of stainless steel.

Compare in traditional soil repair mode, adopt the utility model provides a device restores petroleum type and pollutes soil has following beneficial technological effect:

1. the utility model provides an among the device, can disect insertion syringe and ultrasonic vibration stick in soil through the setting, utilize ultrasonic vibration stick to the not hard up processing of vibration of depths soil and syringe directly put in the medicament to deep soil, not only can avoid completely like this to bring the risk of soil top layer oil pollutant into soil depths in the restoration process of soil depths, reduce the secondary pollution to soil, and can be under the condition that does not use large-scale equipment, put in to deep soil fast effectually with the medicament, improve the medicament in the inside radiation range of soil, thereby normal position soil restoration processing is accomplished to the high efficiency, improve efficiency and convenience to soil restoration.

2. The utility model discloses an in the device, lay a plurality of injection holes through laying the high-pressure pump and along the circumferencial direction on the injection syringe to can carry out the injection of medicament with certain pressure and put in, increase the delivery area territory and the delivery efficiency of medicament, improve the availability factor and the repair effect of medicament.

Drawings

FIG. 1 is a schematic view of the integrated device for ultrasonic-assisted chemical remediation of petroleum-contaminated soil according to the embodiment of the invention, when remediating soil to be remediated;

fig. 2 is a schematic view of the external structure of the injector in this embodiment.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and embodiments.

Referring to fig. 1 and 2, the integrated device for chemically repairing petroleum-contaminated soil by ultrasonic wave in cooperation with chemical in the present embodiment includes a dispensing unit 1, a medicine delivery unit 2, and an ultrasonic desorption unit 3. Wherein, dispensing unit 1 is equipped with the medicament that is used for restoreing soil, send medicine unit 2 to be equipped with pipeline 21 and syringe 22, and syringe 22 adopts stainless steel's hollow structure tubular structure, and one end is equipped with injection hole 221 and inserts to waiting to restore soil 4, and the other end passes through pipeline 21 and dispensing unit 1 intercommunication to carry the medicament in dispensing unit 1 to waiting to restore soil 4 through syringe 22. The ultrasonic desorption unit 3 is composed of an ultrasonic generator 31 and an ultrasonic vibration rod 32, one end of the ultrasonic vibration rod 32 is connected to the ultrasonic generator 31, the other end is also inserted into the soil 4 to be restored, and the ultrasonic vibration rod 32 is arranged in parallel with the injector 22, whereby the soil around the injector 22 is loosened by means of the ultrasonic vibration rod 32.

Adopt the ultrasonic wave of this embodiment in coordination with the device of chemical restoration petroleum class contaminated soil to carry out repairing to the soil that the surface layer adheres to there is the petroleum pollutant, not only can insert to the soil of treating to restore in through directly with syringe and ultrasonic vibration stick, avoid bringing the surface petroleum pollutant into inside the soil, reduce the secondary pollution to soil, and after the inside soil body that will treat to restore soil at ultrasonic vibration stick vibrates not hard up and handles, the syringe of deuterogamying directly carries the medicament to the inside position of treating to restore of soil that directly reaches of soil, realize medicament and the direct contact treatment effect of treating to restore soil, increase the coverage of medicament in soil depths, improve the utilization ratio to the medicament, guarantee that the medicament treats the repairing effect of restoreing soil.

As shown in fig. 1, only one ultrasonic vibration rod 32 is arranged in the ultrasonic desorption unit 3 of the present embodiment, and is arranged in the soil 4 to be remediated while maintaining a parallel relationship with the injector 22. However, in other embodiments, the number of the ultrasonic vibration rods may be increased according to the severity of the internal contamination of the soil 4 to be restored and the hardness of the soil, and the ultrasonic vibration rods may be sequentially arranged around the syringe 22 in the circumferential direction. Therefore, the loosening effect and range of the whole ultrasonic desorption unit on the soil to be repaired can be improved, the contact range of the medicament and the soil is increased, and the utilization rate of the medicament and the soil repairing efficiency are further improved.

In addition, to the less soil of pollution condition, also can utilize ultrasonic vibration stick to carry out the not hard up processing of soil at first, later take out the ultrasonic vibration stick and directly place the syringe in the hole that original ultrasonic vibration stick was located and carry out the medicament transport to the transport region of accurate control medicament improves the utilization ratio to the medicament.

Referring to fig. 1, the unit 1 of this embodiment includes a reservoir 11 and an agitator 12. Wherein, agitator 12 is fixed in the top position of medicine pond 11 for carry out even stirring to the medicament in medicine pond 11. Like this, just can add different composition medicaments to the medicine pond in, mix the stirring with the help of the agitator, guarantee the composition proportion of final medicament, guarantee the medicament to soil remediation's effect.

As shown in fig. 1 and 2, the medicine feeding unit 2 of the present embodiment further includes a high-pressure pump 23 and a check valve 24. Wherein, a high pressure pump 23 and a check valve 24 are sequentially arranged in the pipeline 21 for delivering the medicament in the medicament pool 11 to the injector 22 at high pressure, and further spraying the medicament into the surrounding soil through the injection hole 221. Like this, not only can improve the transport speed to the medicament, can make the medicament moreover with certain speed and pressure blowout syringe to improve medicament coverage and penetrability in soil, increase the contact range of medicament and soil, improve the utilization ratio of medicament and to the prosthetic effect of soil.

At this time, in the embodiment, by means of the ultrasonic vibrating rod and the selected injection hole with the diameter of 500-1000 μm, and controlling the injection pressure to be 15-25 MPa, the injection strength can be ensured, and the pressure can be reduced by 15% compared with the traditional high-pressure rotary spraying technology without causing pressure holding and energy loss, so that the same level of medicament feeding effect can be maintained.

In the embodiment, the high-pressure pump is a variable-frequency multi-stage vertical high-pressure pump, and the output pressure and the flow of the medicament are accurately controlled. Similarly, in other embodiments, other configurations of high pressure pumps may be used for high pressure delivery of the medicament depending on the design and site conditions.

In addition, still be equipped with manometer 25 and flowmeter 26 on pipeline 21 for carry to the medicament pressure and the medicament volume in the soil control, improve the transport control accuracy to the medicament, and then accurate control is to the restoration quality of soil.

As shown in fig. 1, the medicine feeding unit 2 is further provided with a return line 27. The return line 27 is located between the return port of the high-pressure pump 23 and the drug reservoir 11, and is used for returning and delivering the drug.

As shown in fig. 2, the injector 22 of the present embodiment is provided with a plurality of injection holes 221, and the plurality of injection holes 221 are uniformly distributed in the circumferential direction in the front end region of the injector 22, that is, in the end region where the soil is inserted. Therefore, the medicament can be sprayed around the injector at the same time, the coverage of the medicament is improved, and the administration speed of the medicament is increased. Also, in other embodiments, the number, location and size of the injection holes may be adjusted to meet the dosage requirements of a particular situation, depending on the design and use of the device.

Further, a scale 222 is provided on the outer surface of the syringe 22 in the axial direction thereof. Thus, the depth dimension of the injector inserted into the soil can be visually obtained through the scales 222, so that the injection quantity of the injector can be accurately controlled in the process of gradually pumping out the injector while the agent is injected, the position of an injection hole is further controlled, and the injection precision of the agent is guaranteed.

In addition, in this embodiment, a stainless steel quick-connect coupling is used to connect the syringe and the tube. Like this, not only be convenient for carry on the dismouting between syringe and the pipeline fast, be convenient for carry and shift and insert the operation of soil to the syringe, but also can carry out quick replacement to syringe or pipeline under the scene according to the condition, carry different medicaments to the syringe in turn with the help of different pipelines, realize the putting in proper order of different medicaments in the soil, satisfy the use of more operating modes, improve the availability factor of whole device.

Claims

1. An integrated device for restoring petroleum polluted soil by ultrasonic wave and chemical cooperation is characterized by comprising a dispensing unit, a medicine feeding unit and an ultrasonic desorption unit; the soil remediation device comprises a dispensing unit, a medicine conveying unit and a control unit, wherein the dispensing unit is provided with a medicine for remedying soil, the medicine conveying unit is provided with a pipeline and an injector, the injector is of a hollow structure, one end of the injector is provided with an injection hole and is inserted into the soil to be remediated, and the other end of the injector is communicated with the dispensing unit through the pipeline and conveys the medicine into the injector; the ultrasonic desorption unit consists of an ultrasonic generator and an ultrasonic vibration rod, one end of the ultrasonic vibration rod is connected with the ultrasonic generator, and the other end of the ultrasonic vibration rod is inserted into the soil to be restored; the ultrasonic vibrating rod and the injector are arranged in parallel.

2. The apparatus according to claim 1, wherein the ultrasonic desorption unit comprises a plurality of ultrasonic vibration rods, and the plurality of ultrasonic vibration rods are distributed in the soil to be rehabilitated in a circumferential direction of the injector.

3. The apparatus of claim 1, wherein the unit dose comprises a reservoir and an agitator for agitating the medicament in the reservoir.

4. The apparatus of claim 1, wherein the drug delivery unit further comprises a high pressure pump and a check valve; the high-pressure pump and the check valve are sequentially arranged in the pipeline and used for conveying the medicament in the dispensing unit to the injector at high pressure.

5. The apparatus of claim 4, wherein the drug delivery unit further comprises a return line between the return port of the high pressure pump and the drug delivery unit for return delivery of the medicament.

6. The device of claim 4, wherein the medicine delivery unit is further provided with a pressure gauge; the pressure gauge is positioned in the pipeline and close to the injector.

7. The device of claim 4, wherein the drug delivery unit is further provided with a flow meter; the flow meter is located in the conduit proximate to the injector.

8. The device according to claim 1, wherein the injector is provided with a plurality of injection holes at one end inserted into the soil to be restored, and the plurality of injection holes are uniformly distributed in the circumferential direction.

9. The device of claim 1, wherein the outer surface of the syringe is provided with graduations along its axis.

10. The device of claim 1, wherein the syringe is connected to the conduit by a quick-connect coupling of stainless steel.