CN105107835A - Contaminated soil treatment equipment through leaching - Google Patents

Abstract

The invention relates to a polluted soil leaching treatment equipment, comprising: a crawler roller, a screening and crushing system, a pulping system, a soil treatment system and a chemical supply system; the screening and crushing system can crush hard soil blocks in polluted soil, screen Separating stones, plastics and other impurities in the polluted soil, the pulping system can further remove large granular substances in the polluted soil, reducing the amount of polluted soil to be treated, and saving the cost of treatment. The soil treatment system can realize the rapid leaching of polluted soil Repair, the agent supply system can realize the supply of agents and the reuse of eluent. All materials and equipment are installed on the crawler roller, which is convenient for transportation and construction. The contaminated soil leaching treatment equipment integrates earth excavation, soil screening, chemical addition, soil leaching, eluent reuse and automatic control. It has compact structure, convenient operation, strong adaptability and high efficiency. Large-scale engineering application realizes efficient and rapid restoration of various polluted sites.

Description

A kind of contaminated soil washing treatment equipment

technical field

The invention relates to the technical field of environmental geotechnical engineering, in particular to a contaminated soil leaching treatment equipment.

Background technique

With the development of my country's social economy and the acceleration of urbanization, a large number of legacy polluted land needs to be treated urgently. According to the National Soil Pollution Survey Bulletin released by the Ministry of Environmental Protection in 2014, the overall soil environment situation in the country is not optimistic. Some areas have serious soil pollution, the soil environment quality of cultivated land is worrying, and the soil environment problems of industrial and mining wasteland are prominent. Man-made activities such as industry, mining, agriculture, and high background values of the soil environment are the main causes of soil pollution or exceeding standards. According to statistics, there are about 150 million mu of polluted cultivated land nationwide, accounting for more than 1/10 of China's total cultivated land. The treatment of polluted land has become one of the important environmental problems to be solved urgently. According to the country's strategic needs for the stabilization, harmlessness, reduction, and resource development of polluted soil, chemical leaching is an important means of polluted soil treatment. The chemical leaching technology for contaminated soil has the characteristics of rapidity, high efficiency, environmental protection, economy, and simple operation. It can treat contaminated soil containing multiple pollutants at the same time. It has an outstanding emergency effect and is widely used in the treatment of contaminated sites at home and abroad. Since this technology does not need to carry the contaminated soil, which saves transportation costs and reduces the possibility of environmental exposure of pollutants, chemical leaching technology will be widely adopted in the future for the treatment of contaminated soil.

my country's soil remediation industry started relatively late, and the special equipment for soil chemical leaching and remediation is basically blank. Due to the heterogeneity of soil and complex geological conditions, currently commonly used soil heterogeneous leaching devices mostly use the soil column leaching method, that is, the The contaminated soil is made into a soil column, so that the eluent penetrates into the soil from the upper or lower end of the soil column to achieve the cleaning effect. This method has the disadvantages of long leaching time and poor repair effect, and most of the existing devices do not consider leaching. The reuse of liquid and the influence of temperature on the effect of leaching and repairing, the increase of temperature is conducive to the chemical reaction between leaching agent and pollutants, and improves the repairing efficiency.

Therefore, the restoration efficiency of the soil heterotopic leaching device in the prior art is low, the period is long, the cost is high, and the applicability is poor.

Contents of the invention

The contaminated soil leaching treatment equipment provided by this application solves or partly solves the technical problems of low repair efficiency, long cycle, high cost and poor applicability of soil ectopic leaching devices in the prior art, and realizes the operation Convenience, reasonable structure, strong environmental adaptability, short rinsing time and high processing efficiency.

The application provides a contaminated soil washing treatment equipment, including:

The crawler type road roller is equipped with a supporting platform on the upper part; the end of the supporting platform is rotatably connected to a rotating seat; an excavating arm is fixedly connected to the rotating seat; the end of the excavating arm is hinged to a crushing bucket; the crushing Buckets are used to break up and excavate contaminated soil;

The screening and crushing system is used to crush and screen the polluted soil into small particles of polluted soil with a set particle size; the screening and crushing system includes: a pulverizer, a vibrating screen and a collection bin; the pulverizer is connected to the The support platform is fixedly connected; the upper part of the pulverizer is provided with a feed port, and the bottom end is provided with a discharge port; the crushing bucket can send the polluted soil into the feed port through rotation; the vibrating screen is set at Below the discharge port; the collection bin is arranged below the vibrating screen;

A pulping system, used to make the small particles of polluted soil into slurry; the pulping system includes: a pulping bin, a first mixer and a first mud pump; the pulping bin is fixedly arranged on the support platform The pulping bin communicates with the outlet of the collecting bin; the first mixer is arranged inside the pulping bin; the inlet of the first mud pump is connected to the outlet of the pulping bin through a pipeline;

The soil treatment system is used to restore the mud; the soil treatment system includes: a leaching bin, a second mixer, a second mud pump, a suction pipe, a thickener and a mud separator; the rinsing bin and the The support platform is fixedly connected; the leaching chamber is connected to the outlet of the first mud pump; the second mixer is arranged in the leaching chamber; the inlet of the second mud pump is connected to the leaching chamber through a pipeline The outlet of the thickener; the outlet of the second mud pump connected to the thickener; the suction pipe is fixed on the top of the thickener, and one end of the suction pipe extends into the thickener; the thickener The outlet communicates with the mud separator through a pipeline; the mud separator is used to separate the repaired mud;

A medicament supply system, the medicament supply system includes: a eluent supply module and a water supply module; the eluent supply module includes: a eluent nozzle and a eluent storage tank; the eluent nozzle passes through the first A pipeline communicates with the eluent storage tank; the first pipeline is provided with a liquid suction pump and a flow meter; the eluent nozzle is fixedly arranged in the eluent bin; the eluent storage tank is set On the support platform; the water solution supply module includes: a water solution nozzle and a water solution storage tank; the water solution nozzle communicates with the water solution storage tank through a second pipeline; the second pipeline is provided with a first Three suction pumps and a flow meter; the water spray nozzle is fixedly installed in the pulping bin; the water storage tank is fixed on the support platform.

Preferably, the processing equipment further includes: a third mixer, a primary sedimentation tank, a first liquid suction pump, and a secondary sedimentation tank;

The primary sedimentation tank and the secondary sedimentation tank are fixedly arranged on the support platform;

The primary sedimentation tank is connected to the liquid outlet of the mud separator through a pipeline; the other end of the suction pipe is connected to the primary sedimentation tank through a pipeline;

The third mixer is set in the primary sedimentation tank;

The inlet of the first liquid suction pump is connected to the primary sedimentation tank, and the outlet is connected to the secondary sedimentation tank.

Preferably, the processing equipment further includes: a second pump, a filter, and a eluent recovery module;

The eluent recovery module includes: a recovery eluent nozzle and a recovery storage tank; the recovery eluent nozzle is connected to the recovery storage tank through a third pipeline; the third pipeline is provided with a pump and a flow rate The recovery eluent nozzle is fixedly arranged in the leaching chamber; the recovery eluent nozzle is arranged side by side with the eluent nozzle; the recovery storage tank is arranged on the support platform;

The inlet of the second suction pump is connected to the secondary sedimentation tank, and the outlet is connected to the recovery storage tank;

The filter is arranged on the pipeline between the second suction pump and the recovery storage tank.

Preferably, the processing equipment also includes:

The medicine cabinet is fixedly arranged on the support platform;

The rinsing bin is fixed on the support platform through a steel frame; the medicine cabinet is arranged below the rinsing bin;

The recovery storage tank is fixed in the medicine cabinet;

The eluent storage tank is fixed in the medicine cabinet.

Preferably, the treatment equipment further includes: a heavy metal treatment module; the heavy metal treatment module includes: a heavy metal treatment agent nozzle and a heavy metal treatment agent storage tank;

The heavy metal treatment agent nozzle is connected to the heavy metal treatment agent storage tank through the fourth pipeline; the fourth pipeline is provided with a suction pump and a flow meter; the heavy metal treatment agent nozzle is fixedly arranged on the inner wall of the primary sedimentation tank ; The heavy metal treatment agent storage tank is fixedly arranged on the support platform.

Preferably, the processing equipment further includes: an operation control system; the operation control system includes: a pipeline control assembly cabinet and a console;

The control assembly cabinet is fixedly arranged on the support platform; the console is arranged above the control assembly cabinet;

One end of the control assembly cabinet is electrically connected to the console, and the other end is connected to the crushing bucket, pulverizer, vibrating screen, first mixer, first mud pump, second mud pump, thickener, and mud separator , the third mixer, the first liquid suction pump, the second liquid suction pump and the flow meter are electrically connected.

As a preference, a dust shield is provided above the vibrating screen;

A heating layer is arranged on the outer wall of the rinsing bin; an insulation layer is arranged outside the heating layer;

Wherein, the heating layer is heated by a water bath.

As a preference, the nozzle of the water spray nozzle is perpendicular to the rotation axis of the first mixer;

The nozzle of the eluent nozzle is perpendicular to the rotation axis of the second mixer.

As a preference, the thickener and the mud separator are fixedly arranged on the support platform;

The slurry outlet of the thickener communicates with the slurry inlet of the mud separator through the first mud pipe;

The mud separator is provided with a slag outlet; the slag outlet is connected to the second mud pipe;

Wherein, the muck produced by the mud separator is discharged to a designated location through the second mud pipe.

As a preference, the collecting bin is an open trough-shaped bin body, which is obliquely fixed on the top of the pulping bin;

The pulping bin is a rectangular bin body, which is fixed on the supporting platform through a steel frame;

An opening is provided on the top side of the pulping bin, and the outlet of the collecting bin is docked with the opening of the pulping bin;

The vibrating screen is fixed above the collection bin through a steel frame;

The rinsing bin is a rectangular bin body.

The polluted soil leaching treatment equipment provided by the present invention adopts a screening and crushing system to pretreat the polluted soil. The pulverizer can crush the hard soil lumps in the polluted soil, and the vibrating screen can screen out impurities such as stones and plastics in the polluted soil. Further remove the large granular substances in the polluted soil, reduce the amount of polluted soil to be treated, save the cost of treatment, and make the equipment suitable for construction under complex working conditions. The pulping system can fully mix the polluted soil and water agent in advance to make slurry. The soil treatment system has a reasonable structure and can realize rapid leaching of contaminated soil. The thickener and mud separator can quickly separate the mud after leaching to ensure the rapid reuse of the eluent. The chemical supply system contains a flow control valve, which can strictly control the amount of eluent added according to the actual situation of the polluted soil. At the same time, the processing equipment is also equipped with a eluent recovery module, which can realize the reuse of eluent and repeat Multiple leaching can not only improve the recovery efficiency of contaminated soil, but also avoid the increase of post-treatment cost of contaminated eluent and the waste of eluent. The heavy metal treatment module can remove heavy metals in eluent, ensuring the reuse of eluent The removal efficiency is high, and all materials and equipment are installed on the crawler roller, which is convenient for transportation and construction. The in-situ solidification/stabilization treatment equipment for polluted soil of the present invention integrates earth excavation, soil screening, agent addition, uniform mixing, site leveling and automatic control, and has compact structure, convenient operation, strong adaptability and high efficiency, and can Large-scale engineering application realizes efficient and rapid restoration of various polluted sites.

Description of drawings

Fig. 1 is a structural diagram of the contaminated soil washing treatment equipment provided by the embodiment of the present invention.

The components represented by the numbers in the drawings are: 1 crawler roller, 2 crushing bucket, 3 excavating arm, 4 pulverizer, 5 support, 6 console, 7 control assembly cabinet, 8 dust shield, 9 vibrating screen, 10 Pulping bin, 11 first motor, 12 first mixer, 13 first mud pump, 14 collection bin, 15 second motor, 16 second mixer, 17 washing bin, 18 heating layer, 19 insulation layer, 20 second Mud pump, 21 suction pipe, 22 thickener, 23 first mud pipe, 24 liquid outlet pipe, 25 mud separator, 26 third motor, 27 second mud pipe, 28 heavy metal treatment agent storage tank, 29 third mixer , 30 fourth motor, 31 primary sedimentation tank, 32 first liquid suction pump, 33 secondary sedimentation tank, 34 filter, 35 second liquid suction pump, 36 recovery storage tank, 37 eluent storage tank, 38 medicine cabinet , 39 water spray nozzles, 40 water storage tanks, 41 flowmeters, 42 third pumps.

Detailed ways

The present invention is described in further detail below in conjunction with accompanying drawing:

The embodiment of the present application provides a contaminated soil leaching treatment equipment, which solves or partially solves the technical problems of low repair efficiency, long cycle, high cost, and poor applicability of soil ectopic leaching devices in the prior art. Set the screening and crushing system, pulping system, soil treatment system and chemical supply system on the crawler roller. The screening and crushing system crushes and screens the polluted soil into small particles of polluted soil with a set particle size, and the pulping system pollutes the small particles. The soil is made into mud, the soil treatment system repairs the mud through the eluent, the chemical supply system supplies the eluent to the soil treatment system, and at the same time supplies the water agent to the pulping system; in this way, convenient operation, reasonable structure, and environmental adaptability are realized. It has the technical effect of strong resistance, short rinsing time and high processing efficiency.

Referring to the accompanying drawing 1, the embodiment of the present application provides a contaminated soil washing treatment equipment, including: a crawler roller 1, a screening and crushing system, a pulping system, a soil treatment system and a chemical supply system. The upper part of the crawler roller 1 is provided with a supporting platform; the end of the supporting platform is rotatably connected to a rotating seat; the rotating seat is fixedly connected to an excavating arm 3; the end of the excavating arm 3 is hinged to a crushing bucket 2; the crushing bucket 2 is used for Broken and excavated polluted soil; the rotary seat is fixedly connected with the output shaft of the rotary motor, and the rotary motor works, so that the rotary seat drives the excavating arm 3 and the crushing bucket 2 to rotate relative to the support platform.

The screening and crushing system is used to crush and screen the polluted soil into small particles of polluted soil with a set particle size; the screening and crushing system includes: a pulverizer 4, a vibrating screen 9 and a collection bin 14; the pulverizer 4 is fixed to the support platform through a bracket 5 connection; the upper part of the pulverizer 4 is provided with a feed port, and the bottom end is provided with a discharge port; the crushing bucket 2 can send the polluted soil into the feed port through rotation; the vibrating screen 8 is arranged below the discharge port; Below the vibrating screen 9.

The pulping system is used to make small particles of polluted soil into mud; the pulping system includes: a pulping bin 10, a first mixer 12 and a first mud pump 13; the pulping bin 10 is fixedly arranged on a support platform; the pulping bin 10 It communicates with the outlet of the collection bin 14; the first agitator 12 is arranged inside the pulp bin 10 and is driven by the first motor 11; the inlet of the first mud pump 13 is connected to the outlet of the pulp bin 10 through a pipeline.

The soil treatment system is used to repair the mud; the soil treatment system includes: the rinsing bin 17, the second mixer 16, the second mud pump 20, the suction pipe 21, the thickener 22 and the mud separator 25; the rinsing bin 17 and the supporting platform Fixed connection; the washing chamber 17 is connected to the outlet of the first mud pump 13; the second mixer 16 is arranged in the washing chamber 17, driven by the second motor 15; the inlet of the second mud pump 20 is connected to the washing chamber 17 through a pipeline Thickener 22 communicates with the outlet of the second mud pump 20; The liquid suction pipe 21 is fixed on the top of the thickener 22, and one end of the liquid suction pipe 21 stretches into the thickener 22, and the other end communicates with the primary sedimentation tank 31 through a pipeline, wherein The liquid outlet pipe 24 is arranged below the side of the slurry inlet of the mud separator 25, and the end of the liquid outlet pipe 24 extends into the primary sedimentation tank 31; the outlet of the thickener 22 communicates with the mud separator 25 through a pipeline. The mud separator 25 is driven by the third motor 26 to separate the repaired mud.

The medicament supply system includes: a eluent supply module and a water agent supply module; the eluent supply module includes: a eluent nozzle and a eluent storage tank 37; the eluent nozzle is connected to the eluent storage tank 37 through a first pipeline The first pipeline is provided with a pump and a flow meter; the eluent nozzle is fixedly arranged in the eluent bin 17; the eluent storage tank 37 is arranged on the support platform; the water agent supply module includes: the water agent nozzle 39 and The water agent storage tank 40; the water agent nozzle 39 communicates with the water agent storage tank 40 through the second pipeline; the second pipeline is provided with a third pump 42 and a flow meter 41; the water agent nozzle 39 is fixed on the pulping bin 10 by screws Inside; the liquid medicine storage tank 40 is fixedly arranged on the supporting platform.

Further, the processing equipment also includes: a third mixer 29, a primary sedimentation tank 31, a first liquid suction pump 32 and a secondary sedimentation tank 33; the primary sedimentation tank 31 and the secondary sedimentation tank 33 are fixedly arranged on the support platform; the primary sedimentation tank The pool 31 is connected to the liquid outlet 24 of the mud separator 25 through a pipeline; the third mixer 29 is arranged in the primary sedimentation tank 31, and is driven to work by the fourth motor 30; the inlet of the first suction pump 32 is connected to the primary sedimentation tank 31, and the outlet It is connected with the secondary sedimentation tank 33.

Further, the processing equipment also includes: a second liquid pump 35, a filter 34, and a eluent recovery module; the eluent recovery module includes: a recovery eluent nozzle and a recovery storage tank 36; the recovery eluent nozzle passes through the first Three pipelines are connected to the recovery storage tank 36; the third pipeline is provided with a suction pump and a flow meter; the recovery eluent nozzle is fixedly arranged in the leaching chamber 17, and the recovery eluent nozzle and the eluent nozzle are arranged side by side; the recovery storage The tank 36 is arranged on the support platform; the inlet of the second liquid suction pump 35 is connected to the secondary sedimentation tank 33, and the outlet is connected to the recovery storage tank 36; the filter 34 is arranged on the pipeline between the second liquid suction pump 35 and the recovery storage tank 36 superior.

Further, the processing equipment also includes: medicament cabinet 38; medicament cabinet 38 is fixedly arranged on the support platform; rinsing bin 17 is fixed on the supporting platform through a steel frame; medicament cabinet 38 is arranged under the rinsing bin 17; recovery storage tank 36 is fixed in the medicine cabinet 38; the eluent storage tank 37 is fixed in the medicine cabinet 38.

Further, the treatment equipment also includes: a heavy metal treatment module; the heavy metal treatment module includes: a heavy metal treatment agent nozzle and a heavy metal treatment agent storage tank 28; the heavy metal treatment agent nozzle communicates with the heavy metal treatment agent storage tank 28 through the fourth pipeline; There are pumps and flowmeters; heavy metal treatment agent nozzles are fixed on the inner wall of the primary sedimentation tank 31; heavy metal treatment agent storage tanks 28 are fixed on the support platform.

Further, the processing equipment also includes: an operation control system; the operation control system includes: a pipeline control collection cabinet 7 and a console 6; the control collection cabinet 7 is fixedly arranged on the support platform; the console 6 is arranged above the control collection cabinet 7; One end of the control assembly cabinet 7 is electrically connected to the console 6, and the other end is connected to the crushing bucket 2, the pulverizer 4, the vibrating screen 9, the first mixer 12, the first mud pump 13, the second mud pump 20, and the thickener 22 , the mud separator 25, the third mixer 29, the first liquid suction pump 32, the second liquid suction pump 35 and the flow meter are electrically connected.

Further, a dust shield 8 is arranged above the vibrating screen 9; a heating layer 18 is arranged on the outer wall of the shower bin 17; an insulating layer 19 is arranged outside the heating layer 18; wherein, the heating layer 18 is heated by a water bath.

Further, the nozzle of the second spray head is perpendicular to the rotation axis of the first mixer 12; the nozzle of the first nozzle is perpendicular to the rotation axis of the second mixer.

Further, the thickener 22 and the mud separator 25 are fixedly arranged on the support platform; the slurry outlet of the thickener 22 communicates with the slurry inlet of the mud separator 25 through the first mud pipe 23; the mud separator 25 is provided with a slag discharge port. The slag outlet is connected to the second mud pipe 27; wherein, the mud generated by the mud separator 25 is discharged to a designated position through the second mud pipe 27.

Further, the collecting bin 14 is an open trough-shaped bin body, which is obliquely fixed on the top of the pulping bin 10; the pulping bin 10 is a rectangular bin body, which is fixed on the support platform through a steel frame; the top of the pulping bin 10 is An opening is arranged on the side, and the outlet of the collecting bin 14 is docked with the opening of the pulping bin 10; the vibrating screen 9 is fixed above the collecting bin 14 through a steel frame; the rinsing bin 17 is a rectangular bin body.

Wherein, all connecting pipelines in the processing equipment are corrosion-resistant hoses, and the support 5 for fixing the pulverizer and all other fixing steel frames are welded by high-strength stainless steel equilateral angle steel.

The working principle of the contaminated soil washing treatment equipment provided by the present application and the operating characteristics of each component will be described in detail below in conjunction with specific embodiments:

During construction, first start the operation control system and control the collection cabinet 7, the crawler roller 1 shovels the contaminated soil into the crushing bucket 2 through the excavating arm 3; The crushing bucket 2 crushes the hard clods of the polluted soil and sieves them into the pulverizer 4. At the same time, the pulverizer 4 is powered on to further pulverize the polluted soil into small particles. 8. Limit the dust to a small area near the vibrating screen 9 to prevent environmental pollution. The vibrating screen 9 is powered on to start, and the vibrating screen 9 vibrates continuously to further remove large particles of impurities in the polluted soil. Into the pulping bin 10.

Afterwards, the water solution supply module is powered on, and the third liquid suction pump 42 extracts the water solution from the water solution storage tank 40, and the water solution is sprayed into the pulping bin 10 through the flow meter 41 through the water solution nozzle 39, The flow meter 41 controls the volume of the water agent, the first motor 11 is powered on, the first motor 11 drives the first mixer 12 to rotate, and the first mixer 12 continuously stirs to mix the water agent and the polluted soil evenly to make mud, the first mud The pump 13 is powered on, the first mud pump 13 pumps the mud from the pulping bin 10 to the washing bin 17, the eluent supply module is powered on, and the pump pumps the eluent from the eluent storage tank 37 out, the eluent is sprayed into the eluent bin 17 through the flowmeter through the eluent nozzle, the flowmeter controls the volume of the eluent, the second motor 15 is powered on, and the second motor 15 drives the second The mixer 16 rotates to fully mix the eluent and the polluted soil mud. The heating layer 18 keeps a higher temperature in the eluent bin to speed up the reaction process between the eluent and the polluted soil mud. The heat preservation layer 19 can reduce heat loss.

After the leaching is completed, the second mud pump 20 is powered on, and the second mud pump 20 pumps the mud after rinsing from the rinsing bin 17 into the thickener 22, and the thickener 22 is powered on, and the thickener 22 pre-drains the mud. After washing, the mud is concentrated, and after the concentration is completed, the suction pipe 21 pumps the supernatant in the thickener 22 into the primary sedimentation tank 31, and the mud in the thickener 22 enters the mud separator 25 through the first mud pipe 23, and the third The motor 26 is powered to drive the mud separator 25 to work, the mud separator 25 separates the mud, the clear liquid enters the primary sedimentation tank 31 through the liquid outlet pipe 24, and the sludge is discharged to the designated site through the second mud pipe 27 through the slag outlet .

Finally, the heavy metal treatment module is powered on, the pump pumps the heavy metal treatment agent out of the heavy metal treatment agent storage tank 28, and sprays the heavy metal treatment agent into the primary sedimentation tank 31 through the heavy metal treatment agent nozzle, and the flow meter controls the amount of heavy metal treatment agent added , the fourth motor 30 is powered to start, and the fourth motor 30 drives the third mixer 29 to rotate to fully mix the heavy metal treatment agent with the leaching waste liquid, so that the heavy metal ions in the leaching waste liquid and the heavy metal treatment agent fully react. The liquid pump 32 pumps the leaching waste liquid into the secondary sedimentation tank 33 to further precipitate the heavy metals in the leaching waste liquid, and the second liquid pump 35 pumps the leaching waste liquid to the eluent for recovery after being filtered by the filter 34 In the storage tank 36, the filter 34 further removes the particles in the leaching waste liquid, and the leaching waste liquid in the eluent recovery storage tank 36 is sprayed into the rinsing bin 17 through the recovery eluent nozzle, together with the eluent Complete the next stage of washing operation.

The polluted soil leaching treatment equipment provided by the present invention adopts a screening and crushing system to pretreat the polluted soil, the pulverizer 4 can crush hard soil lumps in the polluted soil, and the vibrating screen 9 can screen out stones and plastics in the polluted soil and other impurities, further remove the large granular substances in the polluted soil, reduce the treatment capacity of the polluted soil, save the treatment cost, and make the equipment adapt to the construction of complex working conditions. The pulping system can fully mix the polluted soil and water agent in advance to make slurry. The soil treatment system has a reasonable structure and can realize rapid washing of contaminated soil. The thickener 22 and the mud separator 25 can quickly separate the mud after washing to ensure the rapid reuse of the washing liquid. The chemical supply system contains a flow control valve, which can strictly control the amount of eluent added according to the actual situation of the polluted soil. At the same time, the processing equipment is also equipped with a eluent recovery module, which can realize the reuse of eluent and repeat Multiple leaching can not only improve the recovery efficiency of contaminated soil, but also avoid the increase of post-treatment cost of contaminated eluent and the waste of eluent. The heavy metal treatment module can remove heavy metals in eluent, ensuring the reuse of eluent The removal efficiency is high, and all materials and equipment are installed on the crawler roller 1, which is convenient for transportation and construction. The in-situ solidification/stabilization treatment equipment for polluted soil of the present invention integrates earth excavation, soil screening, agent addition, uniform mixing, site leveling and automatic control, and has compact structure, convenient operation, strong adaptability and high efficiency, and can Large-scale engineering application realizes efficient and rapid restoration of various polluted sites.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. a Polluted Soil elution treatment equipment, is characterized in that, described treatment facility comprises:

Crawler type road roller, top is provided with support platform; The end of described support platform is rotationally connected a rotation seat; Described rotation seat is fixedly connected with a digging arm; The hinged broken scraper bowl in end of described digging arm; Described broken scraper bowl is used for broken and excavates Polluted Soil;

Sieving approach system, for being divided into the small particles of pollution soil of setting particle diameter by described Polluted Soil grinding screen; Described sieving approach system comprises: pulverizer, vibratory sieve and collecting bin; Described pulverizer is fixedly connected with described support platform by support; Described pulverizer top arranges charging aperture, and bottom arranges discharging opening; Described Polluted Soil is sent into described charging aperture by rotational by described broken scraper bowl; Described vibratory sieve is arranged on the below of described discharging opening; Described collecting bin is arranged on the below of described vibratory sieve;

Pulping system, for making mud by described small particles of pollution soil; Described pulping system comprises: slurrying storehouse, the first mixer and the first slush pump; Described slurrying storehouse is fixedly installed in described support platform; The outlet of described slurrying storehouse and described collecting bin; It is inner that described first mixer is arranged on described slurrying storehouse; The outlet in slurrying storehouse described in pipeline communication is passed through in the import of described first slush pump;

Soil treatment system, for repairing described mud; Described soil treatment system comprises: leaching bin, the second mixer, the second slush pump, liquid suction pipe, concentrator and Mud Sepa Machine; Described leaching bin is fixedly connected with described support platform; Described leaching bin is communicated with described first mud delivery side of pump; Described second mixer is arranged in described leaching bin; The outlet of leaching bin described in pipeline communication is passed through in the import of described second slush pump; Described concentrator is communicated with described second mud delivery side of pump; Described liquid suction pipe is fixed on the top of described concentrator, and described concentrator is stretched in one end of described liquid suction pipe; The outlet of described concentrator is communicated with described Mud Sepa Machine by pipeline; Described Mud Sepa Machine is for separating of the described mud after reparation;

Medicament feed system, described medicament feed system comprises: leacheate supplying module and aqua supplying module; Described leacheate supplying module comprises: leacheate shower nozzle and leacheate holding vessel; Described leacheate shower nozzle is by leacheate holding vessel described in the first pipeline communication; Described first pipeline is provided with drawing liquid pump and flowmeter; Described leacheate shower nozzle is fixedly installed in described leaching bin; Described leacheate holding vessel is arranged in described support platform; Described aqua supplying module comprises: aqua shower nozzle and aqua holding vessel; Described aqua shower nozzle is communicated with described aqua holding vessel by second pipe; Described second pipe is provided with the 3rd drawing liquid pump and flowmeter; Described aqua shower nozzle is fixedly installed in described slurrying storehouse; Described aqua holding vessel is fixedly installed in described support platform.

2. treatment facility as claimed in claim 1, is characterized in that,

Described treatment facility also comprises: the 3rd mixer, primary sedimentation basin, the first drawing liquid pump and secondary sedimentation tank;

Described primary sedimentation basin and secondary sedimentation tank are fixedly installed in described support platform;

Described primary sedimentation basin is by the liquid outlet of Mud Sepa Machine described in pipeline communication; The other end of described liquid suction pipe is by primary sedimentation basin described in pipeline communication;

Described 3rd mixer is arranged in described primary sedimentation basin;

Primary sedimentation basin described in the inlet communication of described first drawing liquid pump, secondary sedimentation tank described in outlet.

3. treatment facility as claimed in claim 2, is characterized in that,

Described treatment facility also comprises: the second drawing liquid pump, filter and leacheate recycling module;

Described leacheate recycling module comprises: reclaim leacheate shower nozzle and reclaim holding vessel; Described recovery leacheate shower nozzle reclaims holding vessel described in the 3rd pipeline communication; Described 3rd pipeline is provided with drawing liquid pump and flowmeter; Described recovery leacheate shower nozzle is fixedly installed in described leaching bin; Described recovery leacheate shower nozzle and described leacheate shower nozzle are arranged side by side; Described recovery holding vessel is arranged in described support platform;

Secondary sedimentation tank described in the inlet communication of described second drawing liquid pump, reclaims holding vessel described in outlet;

Described filter is arranged on the pipeline between described second drawing liquid pump and described recovery holding vessel.

4. treatment facility as claimed in claim 3, it is characterized in that, described treatment facility also comprises:

Drug cabinet, is fixedly installed in described support platform;

Described leaching bin is fixed in described support platform by steelframe; Described drug cabinet is arranged on the below of described leaching bin;

Described recovery holding vessel is fixed in described drug cabinet;

Described leacheate holding vessel is fixed in described drug cabinet.

5. treatment facility as claimed in claim 2, is characterized in that,

Described treatment facility also comprises: heavy metal processing module; Described heavy metal processing module comprises: heavy metal treatment agent shower nozzle and heavy metal treatment agent holding vessel;

Described heavy metal treatment agent shower nozzle is by heavy metal treatment agent holding vessel described in the 4th pipeline communication; Described 4th pipeline is provided with drawing liquid pump and flowmeter; Described heavy metal treatment agent shower nozzle is fixedly installed on the inwall of described primary sedimentation basin; Described heavy metal treatment agent holding vessel is fixedly installed in described support platform.

6. treatment facility as claimed in claim 2, is characterized in that,

Described treatment facility also comprises: operation control system; Described operation control system comprises: pipeline controls set cabinet and console;

Described control set cabinet is fixedly installed in described support platform; Described console is arranged on the described top controlling set cabinet;

One end and the described console of described control set cabinet are electrically connected, and the other end and described broken scraper bowl, pulverizer, vibratory sieve, the first mixer, the first slush pump, the second slush pump, concentrator, Mud Sepa Machine, the 3rd mixer, the first drawing liquid pump, the second drawing liquid pump and flowmeter are electrically connected.

7. treatment facility as claimed in claim 1, is characterized in that,

The top of described vibratory sieve is provided with dust board;

Described leaching bin outer wall is provided with zone of heating; Described zone of heating is outside equipped with heat-insulation layer;

Wherein, described zone of heating passes through heating water bath.

8. treatment facility as claimed in claim 1, is characterized in that,

The spout of described aqua shower nozzle is perpendicular to the rotating shaft of described first mixer;

The spout of described leacheate shower nozzle is perpendicular to the rotating shaft of described second mixer.

9. treatment facility as claimed in claim 1, is characterized in that,

Described concentrator and described Mud Sepa Machine are fixedly installed in described support platform;

The grout outlet of described concentrator is communicated with by the first mud tube with the stock inlet of described Mud Sepa Machine;

Described Mud Sepa Machine is provided with slag notch; Described slag notch is communicated with the second mud tube;

Wherein, the dregs that described Mud Sepa Machine produces is discharged into assigned address by described second mud tube.

10. treatment facility as claimed in claim 1, is characterized in that,

Described collecting bin is uncovered grooved warehouse, tilts to be fixed on the top in described slurrying storehouse;

Described slurrying storehouse is rectangle warehouse, is fixed in described support platform by steelframe;

The side, top in described slurrying storehouse arranges opening, the outlet of described collecting bin and the open butt joint in described slurrying storehouse;

Described vibratory sieve is fixed on the top of described collecting bin by steelframe;

Described leaching bin is rectangle warehouse.