CN212264151U

CN212264151U - Heavy metal contaminated soil is selected separately and solidification stabilization system

Info

Publication number: CN212264151U
Application number: CN202020915846.9U
Authority: CN
Inventors: 龙建兵; 李建亮; 刘煌; 宋方方; 江志明; 宋安康; 许国静; 曹荣; 范敏; 陈克军; 曹琳; 徐宗永
Original assignee: China Merchants Group Ecological Environmental Protection Technology Co ltd
Current assignee: China Merchants Group Ecological Environmental Protection Technology Co ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-01-01
Anticipated expiration: 2030-05-27

Abstract

The utility model discloses a heavy metal contaminated soil is selected separately and solidification stabilization system, include: first band conveyer, ray source, detector, air row rifle, the silo that gathers materials, stripper, second band conveyer and solidification stabilization equipment, the ray source with the detector sets up first band conveyer both sides, the silo setting that gathers materials is in the discharge end of first band conveyer, the air row rifle sets up gather materials the silo top, the stripper sets up it keeps away from to gather materials the silo one side, the second band conveyer is connected gather materials the silo with solidification stabilization equipment. The utility model provides a heavy metal contaminated soil is selected separately and solidification stabilization system selects separately heavy metal soil and clean soil through ray source, detector and air-bleed rifle, selects separately the purification to contaminated soil before solidification stabilization to reduce the medicament consumption when solidification is stabilized, reduce soil remediation cost.

Description

Heavy metal contaminated soil is selected separately and solidification stabilization system

Technical Field

The utility model belongs to the technical field of the soil restoration technique and specifically relates to a heavy metal contaminated soil is selected separately and solidification stabilization system is related to.

Background

With the aggravation of the influence of human activities on the natural environment, pollutants generated in the production and living process of people may enter the soil through various ways and exceed the holding and purifying capacity of the soil, so that the problems of soil pollution such as soil natural dysfunction and soil quality deterioration are caused, and further, serious adverse effects on nearby human bodies and the surrounding environment may be caused. Therefore, it is necessary to adopt reasonable technical means to repair the contaminated soil, so as to effectively control the human health and ecological environment risks caused by soil pollution.

The solidification and stabilization technology is one of the most commonly used technologies for restoring the heavy metal contaminated soil, and is characterized in that a curing agent/stabilizing agent is added into the contaminated soil, and the agent, a contaminated medium and pollutants are subjected to physical and chemical actions through full mixing, so that the pollutants are sealed into a solidified body with complete structure and low permeability, or the pollutants are converted into a chemically inactive form, the migration and diffusion of the pollutants in the environment are reduced, and the restoration of the contaminated soil is realized. The curing and stabilizing process comprises the following steps: crushing and screening the excavated soil to remove impurities, adding a curing and stabilizing agent according to the soil quality and the pollutant content, and fully mixing the soil and the agent. Then, pollutants in the soil are not uniformly distributed, and the soil containing heavy metal pollutants and the common soil are mixed together and enter solidification and stabilization equipment for remediation, so that the consumption of soil remediation agents is increased, and the soil remediation cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heavy metal contaminated soil is selected separately and solidification stabilization system selects separately the purification to soil before throwing the medicament to reduce the medicament consumption when solidifying the stabilization, reduce soil remediation cost.

In order to achieve the above object, the utility model provides a heavy metal contaminated soil is selected separately and solidification stabilization system, include: first band conveyer, ray source, detector, air row rifle, the silo that gathers materials, stripper, second band conveyer and solidification stabilization equipment, the ray source with the detector sets up first band conveyer both sides, the silo setting that gathers materials is in the discharge end of first band conveyer, the air row rifle sets up gather materials the silo top, the stripper sets up it keeps away from to gather materials the silo one side, the second band conveyer is connected gather materials the silo with solidification stabilization equipment.

Optionally, an air injection solenoid valve is arranged on the air exhaust gun.

Optionally, the radiation source is disposed above the first belt conveyor, and the detector is disposed below the first belt conveyor.

Optionally, the source of radiation comprises an X-ray radiation assembly.

Optionally, the detector includes: an X-ray spectrometer.

Optionally, the curing and stabilizing apparatus includes: feeder hopper, feeding spiral, medicament bucket, motor, agitator, gear and row's flitch, the second belt conveyor is connected the collecting tank with the feeder hopper, feeding spiral connection the feeder hopper with the agitator, row's flitch sets up the agitator is kept away from feeding spiral one end, the gear sleeve is established on the agitator outer wall, the motor with gear drive connects, the medicament bucket with the feeder hopper intercommunication.

Optionally, a conveying connecting pipe is arranged between the feed hopper and the feed screw, and the medicament barrel is connected with the conveying connecting pipe.

Optionally, the medicament barrel is further connected with a pressure pump for pumping the medicament into the delivery connecting pipe.

Optionally, the inner wall of the medicament barrel is provided with a spiral stirring blade.

Optionally, the inner wall of the medicament barrel is provided with a cutting blade.

The utility model provides a heavy metal contaminated soil is selected separately and solidification stabilization system, include: first band conveyer, ray source, detector, air row rifle, the silo that gathers materials, stripper, second band conveyer and solidification stabilization equipment, the ray source with the detector sets up first band conveyer both sides, the silo setting that gathers materials is in the discharge end of first band conveyer, the air row rifle sets up gather materials the silo top, the stripper sets up it keeps away from to gather materials the silo one side, the second band conveyer is connected gather materials the silo with solidification stabilization equipment. When the soil on the first belt conveyor passes through the ray source, the detector detects that the polluted soil containing heavy metals passes through, the air exhaust gun starts to work to blow the heavy metal soil into the collecting tank, the clean soil containing no heavy metals directly enters the discharging plate, and the heavy metal soil entering the collecting tank is conveyed to the solidification and stabilization equipment for further treatment. The utility model discloses a heavy metal soil and clean soil are selected separately to ray source, detector and air exhaust rifle, select separately the purification to polluting soil before the solidification stabilization to medicament consumption when reducing the solidification stabilization lowers the soil remediation cost.

Drawings

FIG. 1 is a schematic view of a heavy metal contaminated soil sorting and solidification stabilizing system provided by an embodiment of the present invention;

FIG. 2 is a schematic view of a mixing tank provided by the embodiment of the present invention;

fig. 3 is a schematic view of an internal structure of an agitator provided by the embodiment of the present invention.

Wherein: 1-a first belt conveyor, 2-a ray source, 3-a detector, 4-a gas exhaust gun, 5-heavy metal soil, 6-clean soil, 7-a material collecting groove, 8-a discharging plate, 9-a second belt conveyor, 10-a feeding hopper, 11-a conveying connecting pipe, 12-a feeding screw, 13-a medicament barrel, 14-a pressure pump, 15-a motor, 16-a stirring barrel, 17-a gear, 18-a material discharging plate, 19-a cutting piece and 20-a spiral stirring blade.

Detailed Description

The following description of the embodiments of the present invention will be described in more detail with reference to the drawings. Advantages and features of the present invention will become apparent from the following description and claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

Fig. 1 is the embodiment of the utility model provides a heavy metal contaminated soil is selected separately and solidification stabilization system schematic diagram, see fig. 1, heavy metal contaminated soil is selected separately and solidification stabilization system includes: first band conveyer 1, ray source 2, detector 3, air-bleed rifle 4, collecting trough 7, stripper 8, second band conveyer 9 and solidification stabilization equipment, ray source 2 with detector 3 sets up first band conveyer both sides specifically are ray source 2 sets up 1 top of first band conveyer, detector 3 sets up first band conveyer below, collecting trough 7 sets up the discharge end of first band conveyer 1, air-bleed rifle 4 sets up collecting trough 7 top, stripper 8 sets up collecting trough 7 keeps away from first band conveyer 1 one side, second band conveyer 9 is connected collecting trough 7 with solidification stabilization equipment.

The ray source 2 is an X-ray radiation assembly, the X-ray radiation assembly emits X-rays to soil on the first belt conveyor 1, the detector 3 is an X-ray spectrometer, and the X-ray spectrometer receives a spectrum generated by irradiating polluted soil with the X-rays. Due to the fact that pollutants in the soil are not uniformly distributed, the soil on the first belt conveyor 1 comprises the heavy metal soil 5 and the clean soil 6, and the spectrums generated by the irradiation of the X-rays on the heavy metal soil 5 and the clean soil 6 are different. Detect heavy metal soil 5 when detector 3, in gas row rifle 4 sweeps heavy metal soil 5 to collecting tank 7, detect clean soil 6 when detector 3, gas row rifle 4 will reduce wind-force or stop work, and clean soil 6 can get into stripper 8. In order to control the air exhaust lance 4, an air injection electromagnetic valve is arranged on the air exhaust lance 4.

Referring to fig. 1, the curing and stabilizing apparatus includes: feeder hopper 10, feeding spiral 12, medicament bucket 13, motor 15, agitator 16, gear 17 and row's flitch 18, second belt conveyor 9 is connected the collecting trough 7 with feeder hopper 10 will follow the heavy metal soil 5 that the collecting trough 7 bottom dropped and convey feeder hopper 10, feeder hopper 10 with be provided with conveying connection pipe 11 between the feeding spiral 12, feeding spiral 12 is connected conveying connection pipe 11 with agitator 16, row's flitch 18 sets up agitator 16 keeps away from feeding spiral 12 one end, gear 17 cover is established on 16 outer walls of agitator, motor 15 with gear 17 transmission is connected. The medicament barrel 13 is also connected with a pressure pump 14 for pumping the medicament into the delivery connecting pipe 11. The medicament pump is into carrying connecting pipe 11, and heavy metal soil 5 gets into carrying connecting pipe 11 from feeder hopper 10, prevents that the medicament from feeder hopper 10 runaway. The medicament and the heavy metal soil 5 enter the feeding screw 12 together for primary mixing, and are conveyed into the stirring barrel 16 through the feeding screw 12, and the stirring barrel 16 rotates to further uniformly mix the medicament and the heavy metal soil 5.

Fig. 2 is a schematic view of an agitating barrel provided by an embodiment of the present invention, referring to fig. 2, the inner wall of the medicine barrel 16 is provided with a spiral agitating blade 20. The motor 15 drives the stirring barrel 16 to positively rotate to stir the medicament and the heavy metal soil 5, after the mixture is uniformly stirred, the motor 15 drives the stirring barrel 16 to positively rotate, and the uniformly mixed medicament and the heavy metal soil 5 can be discharged from the stirring barrel 16 to enter the discharge plate 18. Fig. 3 is a schematic view of the internal structure of the mixing drum provided by the embodiment of the present invention, referring to fig. 3, between the spiral mixing blades 20, the inner wall of the medicament drum 16 is provided with cutting blades 19. The cutting blade 19 is a crescent blade, and the cutting blade 19 is parallel to the axis of the medicament barrel 16 or forms a certain angle with the axis of the medicament barrel 16. The cutting blade 19 can cut and crush the heavy metal soil 5 and prevent the heavy metal soil 5 from adhering to the inner wall of the agitating barrel 16.

To sum up, the embodiment of the utility model provides a heavy metal contaminated soil is selected separately and solidification stabilization system includes: first band conveyer, ray source, detector, air row rifle, the silo that gathers materials, stripper, second band conveyer and solidification stabilization equipment, the ray source with the detector sets up first band conveyer both sides, the silo setting that gathers materials is in the discharge end of first band conveyer, the air row rifle sets up gather materials the silo top, the stripper sets up it keeps away from to gather materials the silo one side, the second band conveyer is connected gather materials the silo with solidification stabilization equipment. The utility model provides a heavy metal contaminated soil is selected separately and solidification stabilization system selects separately heavy metal soil and clean soil through ray source, detector and air-bleed rifle, selects separately the purification to contaminated soil before solidification stabilization to reduce the medicament consumption when solidification is stabilized, reduce soil remediation cost.

The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.

Claims

1. The utility model provides a heavy metal contaminated soil is selected separately and solidification stabilization system which characterized in that includes: first band conveyer, ray source, detector, air row rifle, the silo that gathers materials, stripper, second band conveyer and solidification stabilization equipment, the ray source with the detector sets up first band conveyer both sides, the silo setting that gathers materials is in the discharge end of first band conveyer, the air row rifle sets up gather materials the silo top, the stripper sets up it keeps away from to gather materials the silo one side, the second band conveyer is connected gather materials the silo with solidification stabilization equipment.

2. The heavy metal contaminated soil sorting and solidification stabilization system according to claim 1, wherein an air injection solenoid valve is disposed on the air exhaust gun.

3. The heavy metal contaminated soil sorting and solidification stabilization system according to claim 1, wherein the radiation source is disposed above the first belt conveyor, and the detector is disposed below the first belt conveyor.

4. The heavy metal contaminated soil sorting and solidification stabilization system according to claim 1, wherein the radiation source comprises an X-ray radiation assembly.

5. The heavy metal contaminated soil sorting and solidification stabilization system according to claim 4, wherein the detector comprises: an X-ray spectrometer.

6. The heavy metal contaminated soil sorting and solidification stabilization system according to claim 1, wherein the solidification stabilization apparatus comprises: feeder hopper, feeding spiral, medicament bucket, motor, agitator, gear and row's flitch, the second belt conveyor is connected the collecting tank with the feeder hopper, feeding spiral connection the feeder hopper with the agitator, row's flitch sets up the agitator is kept away from feeding spiral one end, the gear sleeve is established on the agitator outer wall, the motor with gear drive connects, the medicament bucket with the feeder hopper intercommunication.

7. The heavy metal contaminated soil sorting, solidifying and stabilizing system according to claim 6, wherein a conveying connecting pipe is arranged between the feed hopper and the feeding screw, and the medicament barrel is connected with the conveying connecting pipe.

8. The heavy metal contaminated soil sorting and solidification stabilizing system according to claim 7, wherein a pressure pump for pumping an agent into the delivery connecting pipe is further connected to the agent barrel.

9. The heavy metal contaminated soil sorting, curing and stabilizing system according to claim 6, wherein the inner wall of the chemical bucket is provided with a spiral stirring blade.

10. The heavy metal contaminated soil sorting and solidification stabilizing system according to claim 6, wherein a cutting piece is disposed on an inner wall of the chemical agent barrel.