CN214975627U - Soil screening and leaching treatment equipment - Google Patents
Soil screening and leaching treatment equipment Download PDFInfo
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- CN214975627U CN214975627U CN202121201536.1U CN202121201536U CN214975627U CN 214975627 U CN214975627 U CN 214975627U CN 202121201536 U CN202121201536 U CN 202121201536U CN 214975627 U CN214975627 U CN 214975627U
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Abstract
The utility model belongs to the technical field of soil remediation, and discloses a soil screening and leaching treatment device, which comprises a conveying device, a vibration screening device, an intelligent spraying device and a waste liquid treatment device, wherein the conveying device is connected with the vibration screening device, and the intelligent spraying device is connected with the waste liquid treatment device; the conveying device is used for conveying heavy metal contaminated soil before screening and leaching and soil to be detected after screening and leaching, the vibration screening device is used for vibration screening and leaching of the heavy metal contaminated soil, the intelligent spraying device is used for spraying and leaching medicaments, and the waste liquid treatment device is used for treating and recycling leaching waste liquid and dehydrating and drying generated heavy metal waste residues. The equipment efficiently extracts heavy metal in the heavy metal polluted soil by the leaching agent, completes leaching and screening work on the polluted soil, treats and recycles heavy metal leaching waste liquid, and recycles or safely disposes precipitated heavy metal waste residues. The equipment has the advantages of simple structure, high automation degree, low processing cost and the like.
Description
Technical Field
The utility model belongs to the technical field of soil remediation, concretely relates to soil screening drip washing treatment facility.
Background
With the development of industrial activities, toxic and harmful heavy metals are ubiquitous in soil. If the heavy metal contaminated soil can not be treated in time, the soil is easy to directly or indirectly harm human health, so that the problem of soil safety is widely regarded by people.
The current treatment technology for heavy metal contaminated soil mainly comprises a phytoremediation method, a microbial remediation method, an electric remediation method, a solidification/stabilization method, a chemical leaching method and the like. The chemical leaching method has relatively high remediation efficiency and relatively low treatment cost, and can thoroughly solve the safety problem of the polluted soil by extracting heavy metals, so that the chemical leaching method is widely applied. However, the technology has certain limitation in the actual operation process, and the practical application of the soil leaching technology is limited by the problems of large work load in the leaching process, large treatment work load of leaching waste liquid, high treatment cost and the like.
On the other hand, although the research and application of the soil leaching method are advanced to different degrees, most of the soil leaching methods are based on the basic research of a laboratory, the leaching solution is directly added into the soil in the common soil leaching process, and the soil and the leaching solution cannot be fully contacted, so that the treatment efficiency is low, corresponding soil leaching equipment is lacked, and most of the existing soil leaching equipment is not designed according to the circular economy concept and the clean production concept.
Therefore, the problems of large soil leaching engineering quantity and large leaching waste liquid treatment engineering quantity in the soil leaching technology and the problem of lacking of corresponding green circulating soil leaching equipment are to be solved urgently. Technologies and soil leaching equipment capable of efficiently extracting heavy metals in soil and recycling leaching solution are needed.
SUMMERY OF THE UTILITY MODEL
Shortcoming and weak point to above prior art exist, the utility model provides a soil screening drip washing treatment facility, this equipment accessible drip washing medicament high efficiency extract heavy metal that heavy metal pollutes soil, accomplish drip washing and screening work to polluting soil simultaneously to handle and the retrieval and utilization to heavy metal drip washing waste liquid, the heavy metal waste residue of sediment carries out recycle or safe processing. The equipment has the characteristics of simple structure, reasonable layout, high automation degree, low processing cost and the like.
An object of the utility model is to provide a soil method combines to prepare the eluant through nano-material and microorganism, utilizes nano-material and microorganism to exert effect in coordination and makes the heavy metal transfer to the liquid phase eluant from solid phase soil, and the eluant can cyclic utilization among the elution process, finally reaches the purpose that the heavy metal was retrieved or was dealt with.
The purpose of the utility model is realized through the following technical scheme:
the equipment is characterized by comprising a conveying device, a vibration screening device, an intelligent spraying device and a waste liquid treatment device, wherein the conveying device is connected with the vibration screening device, and the intelligent spraying device is connected with the waste liquid treatment device; conveyer is used for the heavy metal contaminated soil before the transportation screening drip washing and sieves the soil of waiting to examine after the drip washing, the vibration screening device is used for the vibration screening and the drip washing of heavy metal contaminated soil, intelligent spray set is used for spraying the drip washing medicament, waste liquid treatment device is used for the processing of drip washing waste liquid and the dewatering and drying of retrieval and utilization and the heavy metal waste residue that produces.
As the preferred technical scheme, the conveying device comprises a self-starting conveying belt and conveying belts at all levels, the self-starting conveying belt is provided with a bucket, soil piles can be automatically conveyed to the conveying belts, and labor cost is saved.
As a preferable technical scheme, the vibrating screening device comprises a vibrating screen and a vibrating bearing of the vibrating screen.
As a preferable technical scheme, the vibrating screen can be used as a sieving and leaching place, leaching agents are sprayed out in a rotating mode from the upper portion and combined with vibration of the vibrating screen, the purpose that the leaching agents are in full contact with heavy metal contaminated soil can be achieved, and meanwhile, the leached soil can be sieved to different areas according to different particle sizes.
As a preferable technical scheme, the number of the screening areas of the vibrating screen is 6, and 7 kinds of stones, soil sand grains, soil sticky grains and the like with different grain sizes can be screened out, wherein the 7 kinds of stones, soil sand grains, soil sticky grains and the like with different grain sizes are respectively less than 0.075mm, 0.075mm to 0.125mm, 0.125mm to 1mm, 1mm to 2mm, 2mm to 5mm, 5mm to 20mm and more than 20 mm.
As a preferred technical scheme, the intelligent spraying device comprises an intelligent spraying control system, a rotary rod and an intelligent nozzle; the intelligent spraying control system can reasonably control the spraying volume of the leaching agent according to the concentration and volume of the leaching agent and the quality of soil to be repaired in the vibrating screen, the rotating rod rotates in the air to achieve the purpose of uniformly spraying the leaching agent, the leaching agent is fully contacted with the soil to be repaired, and the intelligent nozzle is connected with the intelligent spraying control system and is responsible for spraying according to the given volume of the leaching agent.
As a preferred technical scheme, an intelligent spraying control system of the intelligent spraying device is connected with a computer with a special program, and a set computer program is provided to reasonably select the spraying volume of the leaching agent, so that automatic spraying is realized, and the labor cost is saved; the rotating speed of the rotating rod can be set to be 30-60 r/min; the number of the intelligent nozzles is 15, and partial nozzles can be opened or closed according to actual conditions.
As a preferred technical scheme, the waste liquid treatment device comprises a leaching waste liquid collecting tank, a leaching waste liquid sedimentation tank, a leaching waste liquid secondary sedimentation tank, a heavy metal waste residue dehydration drying device and a leaching agent storage tank; the leaching waste liquid collecting tank is responsible for collecting the leaching waste liquid treated by the leaching screening device, the leaching waste liquid sedimentation tank is responsible for treating the collected leaching waste liquid, the leaching waste liquid secondary sedimentation tank is responsible for collecting heavy metal precipitated waste residues, the heavy metal waste residue dewatering and drying device is responsible for dewatering and drying the heavy metal precipitated waste residues, and the leaching agent storage tank is responsible for regenerating and storing leaching agent.
As a preferable technical scheme, the leaching waste liquid sedimentation tank is additionally provided with a feeder and a rotary stirring system, the feeder provides a heavy metal precipitator, the rotary stirring system enables the leaching waste liquid to be fully contacted with the heavy metal precipitator, and the rotating speed of the rotary stirring system can be set to be 100-500 r/min.
According to the preferable technical scheme, the eluent storage tank is additionally provided with a feeder and a rotary stirring system, the feeder provides an eluent regenerant, the rotary stirring system enables the treated eluent to be fully contacted with the eluent regenerant, the regenerated eluent can be stored for standby, and the rotating speed of the rotary stirring system can be set to be 100-500 r/min.
Compared with the prior art, the utility model has the advantages of as follows and beneficial effect:
(1) the soil screening and leaching treatment equipment provided by the utility model has simple structure and reasonable layout; the screening and leaching device is arranged, so that the heavy metal polluted soil can be screened and leached at the same time, the equipment space is saved, and the leaching cost is saved.
(2) The utility model provides a soil screening drip washing treatment facility carries out cyclic utilization to the drip washing waste liquid, has solved the big and with high costs scheduling problem of soil drip washing waste liquid engineering volume.
(3) The utility model provides a soil screening drip washing treatment facility degree of automation is high, can practice thrift a large amount of operation workman's cost, and processing cost is low.
Drawings
Fig. 1 is a schematic structural diagram of a processing apparatus according to an embodiment of the present invention.
Wherein: 101: self-starting conveyor belt, 102: particle diameter soil conveyer belt of more than 20mm, 103: 5 ~ 20mm particle diameter soil conveyer belt, 104: 2 ~ 5mm particle diameter soil conveyer belt, 105: 1 ~ 2mm particle diameter soil conveyer belt, 106: 0.125 ~ 1mm particle diameter soil conveyer belt, 107: 0.075 ~ 0.125mm particle diameter soil conveyer belt, 201: vibrating screen, 202: vibrating bearing of vibrating screen, 301: intelligent spray control system, 302: rotating rod, 303: intelligent shower nozzle, 401: a collecting tank for the waste leaching liquid, 402: a leaching waste liquid sedimentation tank, 403: a secondary leaching waste liquid sedimentation tank 404: heavy metal waste residue dehydration drying device, 405: a eluent storage tank.
Detailed Description
The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.
The embodiment of the utility model provides a soil screening drip washing treatment facility, and the facility includes conveyer, vibration screening device, intelligent spray device, waste liquid treatment device, the conveyer with vibration screening device is connected, intelligent spray device with waste liquid treatment device is connected; conveyer is used for the heavy metal contaminated soil before the transportation screening drip washing and sieves the soil of waiting to examine after the drip washing, the vibration screening device is used for the vibration screening and the drip washing of heavy metal contaminated soil, intelligent spray set is used for spraying the drip washing medicament, waste liquid treatment device is used for the processing of drip washing waste liquid and the dewatering and drying of retrieval and utilization and the heavy metal waste residue that produces.
As shown in figure 1, the conveying device comprises a self-starting conveying belt 101 and conveying belts 102-107 at all levels, wherein the self-starting conveying belt 101 is provided with a bucket, soil piles can be automatically conveyed to the conveying belt 101, and labor cost is saved. The heavy metal contaminated soil enters the vibratory screening device along with the self-starting conveyor belt 101.
The vibratory screening apparatus includes a vibratory screen 201 and a vibratory screen vibration bearing 202. The vibrating screen 201 can be used as a sieving and leaching place, leaching agents are sprayed out in a rotating mode from the upper portion and combined with vibration of the vibrating screen, the purpose that the leaching agents are in full contact with heavy metal contaminated soil can be achieved, and meanwhile the leached soil can be sieved to different areas according to different particle sizes. The total number of the screening areas of the vibrating screen 201 is 6, and stones, soil sand grains, soil adhesive grains and the like with 7 different particle sizes can be screened out, wherein the 7 different particle sizes are respectively less than 0.075mm, 0.075-0.125 mm, 0.125-1 mm, 1-2 mm, 2-5 mm, 5-20 mm and more than 20 mm. Shaker vibration bearing 202 provides shaker 201 power. After the heavy metal contaminated soil enters the vibrating screen 201, the leaching agent sprayed by the intelligent spray nozzle 303 above fully contacts with the heavy metal contaminated soil, the treated soil enters a proper particle size area under the influence of the gradient and vibration of the vibrating screen, the particle size of more than 20mm enters the corresponding soil conveying belt 102, the particle size of 5-20 mm enters the corresponding soil conveying belt 103, the particle size of 2-5 mm enters the corresponding soil conveying belt 104, the particle size of 1-2 mm enters the corresponding soil conveying belt 105, the particle size of 0.125-1 mm enters the corresponding soil conveying belt 106, the particle size of 0.075-0.125 mm enters the corresponding soil conveying belt 107, and the soil with the particle size of less than 0.075mm and the leaching waste liquid enter the leaching waste liquid collecting tank 401 together.
The intelligent spraying device comprises an intelligent spraying control system 301, a rotating rod 302 and an intelligent spray head 303. The intelligent spraying control system 301 can reasonably control the spraying volume of the leaching agent according to the concentration and volume of the leaching agent and the quality of soil to be repaired in the vibrating screen, the intelligent spraying control system 301 of the intelligent spraying device is connected with a computer with a special program, the set computer program is provided to reasonably select the spraying volume of the leaching agent, automatic spraying is achieved, labor cost is saved, the rotary rod 302 rotates in the air to achieve the purpose of uniformly spraying the leaching agent, the leaching agent is fully contacted with the soil to be repaired, the rotating speed of the rotary rod 302 can be set to be 30-60 r/min, the intelligent spray nozzles 303 are connected with the intelligent spraying control system 301 and are responsible for spraying according to the given volume of the leaching agent, 15 intelligent spray nozzles 303 are provided, and part of spray nozzles can be opened or closed according to actual conditions. After the heavy metal contaminated soil enters the vibrating screen 201, the leaching agent sprayed by the intelligent spray nozzle 303 above the vibrating screen is fully contacted with the heavy metal contaminated soil, and the treated soil enters a proper particle size area under the influence of the gradient and vibration of the vibrating screen. The soil with the grain diameter of less than 0.075mm and the leaching waste liquid enter the leaching waste liquid collecting tank 401 together.
The waste liquid treatment device comprises a leaching waste liquid collecting tank 401, a leaching waste liquid sedimentation tank 402, a leaching waste liquid secondary sedimentation tank 403, a heavy metal waste residue dewatering and drying device 404 and a leaching agent storage tank 405; the leaching waste liquid collecting tank 401 is responsible for collecting the leaching waste liquid treated by the leaching screening device, the leaching waste liquid sedimentation tank 402 is responsible for treating the collected leaching waste liquid, the leaching waste liquid sedimentation tank 402 is additionally provided with a feeder and a rotary stirring system, the feeder provides a heavy metal precipitator, the rotary stirring system enables the leaching waste liquid to be in full contact with the heavy metal precipitator, the rotating speed of the rotary stirring system can be set to be 100-500 r/min, the leaching waste liquid secondary sedimentation tank 403 is responsible for collecting heavy metal precipitation waste residues, the heavy metal precipitation waste residues comprise precipitates treated by the leaching waste liquid and soil with the particle size of less than 0.075mm after soil leaching treatment, the heavy metal waste residue dewatering and drying device 404 is responsible for dewatering and drying the heavy metal precipitation waste residues, the heavy metal precipitation waste residues are recycled or safely buried, the leaching agent storage tank 405 is responsible for regenerating and storing a leaching agent, and the leaching agent storage tank 405 is additionally provided with a feeder and a rotary stirring system, the feeder provides an eluent regenerant, the rotary stirring system enables the treated eluent to be fully contacted with the eluent regenerant, the regenerated eluent can be stored for later use, and the rotating speed of the rotary stirring system can be set to be 100-500 r/min. The leaching agent can flow through the intelligent spraying control system 301 again and is sprayed out from the intelligent spray head 303, and the soil leaching is continued.
The above embodiments are preferred embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (5)
1. The utility model provides a soil screening drip washing treatment facility which characterized in that: the equipment comprises a conveying device, a vibration screening device, an intelligent spraying device and a waste liquid treatment device, wherein the conveying device is connected with the vibration screening device, and the intelligent spraying device is connected with the waste liquid treatment device; the conveying device comprises a self-starting conveying belt (101) and six-stage conveying belts (102-107); the six-stage conveyor belt is specifically a soil conveyor belt (102) with the particle size of more than 20mm, a soil conveyor belt (103) with the particle size of 5-20 mm, a soil conveyor belt (104) with the particle size of 2-5 mm, a soil conveyor belt (105) with the particle size of 1-2 mm, a soil conveyor belt (106) with the particle size of 0.125-1 mm, and a soil conveyor belt (107) with the particle size of 0.075-0.125 mm; the vibrating screening device comprises a vibrating screen (201) and a vibrating bearing (202) of the vibrating screen, 6 screening areas of the vibrating screen (201) are provided, 7 soil particles with different particle sizes can be screened, and the 7 soil particles with different particle sizes are respectively less than 0.075mm, 0.075-0.125 mm, 0.125-1 mm, 1-2 mm, 2-5 mm, 5-20 mm and more than 20 mm; each screening area corresponds to a primary conveyor belt; the intelligent spraying device comprises an intelligent spraying control system (301), a rotating rod (302) and an intelligent spray head (303), wherein the intelligent spray head (303) is connected with the intelligent spraying control system (301); the waste liquid treatment device comprises a leaching waste liquid collecting tank (401), a leaching waste liquid sedimentation tank (402), a leaching waste liquid secondary sedimentation tank (403), a heavy metal waste residue dewatering and drying device (404) and a leaching agent storage tank (405).
2. The soil screening washing treatment facility of claim 1, wherein: the self-starting conveyor belt (101) is equipped with a bucket.
3. The soil screening washing treatment facility of claim 1, wherein: the rotating speed of the rotating rods (302) is set to be 30-60 r/min, and the number of the intelligent nozzles (303) is 15.
4. The soil screening washing treatment facility of claim 1, wherein: the leaching waste liquid sedimentation tank (402) is additionally provided with a feeder and a rotary stirring system, the feeder provides a heavy metal precipitator, the rotary stirring system enables the leaching waste liquid to be in full contact with the heavy metal precipitator, and the rotating speed of the rotary stirring system is set to be 100-500 r/min.
5. The soil screening washing treatment facility of claim 1, wherein: the eluent storage tank (405) is attached with a feeder and a rotary stirring system, the feeder provides an eluent regenerant, the rotary stirring system enables the treated eluent to be fully contacted with the eluent regenerant, the regenerated eluent is stored for standby, and the rotating speed of the rotary stirring system is set to be 100-500 r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121201536.1U CN214975627U (en) | 2021-05-27 | 2021-05-27 | Soil screening and leaching treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121201536.1U CN214975627U (en) | 2021-05-27 | 2021-05-27 | Soil screening and leaching treatment equipment |
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| Publication Number | Publication Date |
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| CN214975627U true CN214975627U (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121201536.1U Active CN214975627U (en) | 2021-05-27 | 2021-05-27 | Soil screening and leaching treatment equipment |
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| CN (1) | CN214975627U (en) |
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