CN206373157U - A kind of showering equipment of organic material contaminated soil - Google Patents

Abstract

The utility model discloses an ectopic restoration device for soil polluted by organic matter, which comprises a solid medicament delivery system, a soil crushing and stirring cabin, a liquid dosing reaction cabin and a crawler conveyor system; the crawler conveyor system passes through the The bottom of the soil crushing and stirring cabin and the liquid dosing reaction cabin; the top of the soil crushing and stirring cabin is provided with a feeding port, and the solid medicament delivery system is installed above the feeding port; the inside of the soil crushing and stirring cabin A crushing blade set is provided; a liquid medicament spraying system and a liquid medicament dispensing system are arranged inside the liquid dosing reaction chamber; an exhaust gas recovery system is arranged on the top of the liquid dosing reaction chamber. The advantages of the utility model are: (1) multiple doses are used to ensure that the restoration agent is evenly injected into the soil; (2) the equipment uses a variety of restoration agents to repair the soil, ensuring the efficiency of construction and the effect of the agent.

Description

Ex-situ remediation equipment for organic matter-contaminated soil

technical field

The utility model relates to the technical field of environmental geotechnical engineering, in particular to an ectopic restoration device for soil polluted by organic matter.

Background technique

In recent years, the development of modern industry has greatly promoted the process of human civilization. While enjoying the rich fruits created by industrial civilization, people also suffer from the ensuing environmental pollution hazards. Various pollutants such as leachate from landfills, waste from industrial sites, waste liquid from mining sites, and improperly applied chemical fertilizers on cultivated land have caused serious pollution, posing a threat to human survival and development. Among them, the organic pollution of soil and water is particularly prominent and serious. Through continuous migration and transformation, these pollutants enter the human body through the respiratory tract, digestive tract, etc., posing a great threat to the human body. Many organic pollutants have chemical carcinogenic effects and light pollution. Toxic effect.

The remediation of organic contaminated soil includes physical methods (external soil replacement method, heat treatment method and isolation method), biological methods (bacteria injection method, biological aeration method, phytoremediation method) and chemical methods (solidification/stabilization method, oxidation method, etc.) method, restore method). These methods have their own advantages and disadvantages and applicable conditions, among which the chemical oxidation method has the advantages of thorough reaction, rapid reaction and relatively low cost and is widely used.

Among them, the ex-situ chemical oxidation/reduction restoration method, that is, the method of excavating the polluted earth from the site for oxidation repair and then backfilling the earth, is one of the mainstream methods adopted at home and abroad. Especially in my country, which is in the early stage of site restoration development, most restoration methods are currently used. Scholars and engineers at home and abroad have done a lot of targeted scientific research and equipment development for this method. However, there are still many limitations and deficiencies in the current equipment, which are specifically reflected in:

(1) At present, many ectopic redox repair equipment are designed for sandy soil, silty soil or clayey soil with low moisture content at the beginning of design. However, in actual engineering, many silts and clays with high water content will be encountered. Due to the strong cohesion caused by the strong bound water in the clay, the mixing mode and dosing method of the existing equipment cannot guarantee the process of soil dosing. uniformity.

(2) The dosing method of the current ectopic redox repair equipment is more suitable for the addition of solid medicaments, while the current oxidizing agents are more commonly used in the form of liquid dosing. More importantly, currently commonly used redox agents need to be administered with 2-3 agents with different characteristics and effects, such as the Fenton system, which requires a combination of metal ions, acidic agents and hydrogen peroxide; the sodium persulfate/alkali system, which requires alkali Combination of sexual stimulating agent and sodium persulfate solution, etc., and these agents need to be dosed in batches, which cannot be achieved by the existing equipment at present.

(3) The dosing reaction site of many heterotopic redox repair equipment is often exposed to the air, and the heat released during the oxidation reaction will aggravate the volatilization of the original pollutants, thus causing air pollution.

Contents of the invention

The purpose of this utility model is to provide a kind of heterotopic restoration equipment for organic matter-contaminated soil according to the deficiencies of the above-mentioned prior art. A liquid dosing reaction chamber is set on the top, so that various remediation agents can be added to the polluted soil, and the pollutants inside the soil can be effectively eliminated.

The utility model goal is realized by the following technical solutions:

An ectopic remediation device for organic-contaminated soil, characterized in that it includes a solid medicament delivery system, a soil crushing and stirring cabin, a liquid dosing reaction cabin, and a crawler conveyor system; the crawler conveyor system passes through the soil in a horizontal direction The bottom of the stirring cabin and the liquid dosing reaction cabin; the top of the soil crushing and mixing cabin is provided with a feeding port, and the solid medicament delivery system is installed above the feeding port; the inside of the soil crushing and mixing cabin is provided with A crushing blade set; a liquid medicament spraying system and a liquid medicament dispensing system are arranged inside the liquid dosing reaction chamber; an exhaust gas recovery system is arranged on the top of the liquid dosing reaction chamber.

Both the feeding port and the crushing blade set are arranged above the crawler conveyor system.

The solid medicament delivery system includes a solid medicament storage cabin and a solid medicament flow control roller; the solid medicament flow control roller is installed at the bottom opening of the solid medicament storage cabin, and the solid medicament flow control roller stores the solid medicament The bottom opening of the cabin is blocked; the surface of the solid medicament flow control drum is provided with several medicated grooves.

The crushing blade set includes a blade drum and blades installed on the outer surface of the blade drum.

The exhaust gas recovery system includes a sieve bucket, on which a number of ventilation holes are opened, and a pollutant adsorbent is arranged inside the sieve bucket.

The top of the liquid dosing reaction cabin is provided with a liquid medicament chamber, and the liquid medicament chamber is connected to the liquid medicament spraying system and the liquid medicament delivery system; the liquid medicament spraying system and the liquid medicament delivery system are evenly arranged above the tracked conveyor system.

The liquid medicament delivery system includes a liquid medicament storage cabin and a liquid medicament flow control roller; the liquid medicament flow control roller is installed at the bottom opening of the liquid medicament storage cabin, and the liquid medicament flow control roller stores the liquid medicament The bottom opening of the cabin is blocked; the surface of the liquid medicament flow control drum is provided with several medicated grooves.

The liquid medicament spraying system includes a medicament tube arranged in the horizontal direction, and the side wall of the medicament tube is provided with a strip-shaped opening extending along its axis; the strip-shaped opening is filled with permeable stones.

The utility model has the advantages of (1) adopting the method of multiple doses to ensure that the repairing agent is evenly put into the soil; (2) the equipment uses a variety of repairing agents to repair the soil, ensuring the efficiency of construction and the effect of the agent; (3) The equipment is designed with an activated carbon adsorption area as a waste gas recovery system, which can effectively prevent secondary pollution caused by gas leakage during the reaction process.

Description of drawings

Fig. 1 is the structural representation of the heterotopic restoration equipment of the organic matter polluted soil of the present utility model;

Fig. 2 is a side view of the solid medicament delivery system in the utility model;

Fig. 3 is the front view of the solid medicament delivery system in the utility model;

Fig. 4 is a side view of the waste gas recovery system in the utility model;

Fig. 5 is a side view of the liquid medicine delivery system in the utility model;

Fig. 6 is a front view of the liquid medicine delivery system in the utility model;

Fig. 7 is a schematic cross-sectional view of the liquid medicine spraying system in the present invention.

detailed description

The features of the present utility model and other relevant features are further described in detail below in conjunction with the accompanying drawings through the embodiments, so as to facilitate the understanding of those skilled in the art:

As shown in Figure 1-7, the marks 1-23 in the figure are: soil crushing and mixing chamber 1, liquid dosing reaction chamber 2, crawler conveyor system 3, feeding port 4, crushing blade group 5, solid drug delivery system 6, blade drum 7. Blade 8, solid medicine storage cabin 9, solid medicine flow control drum 10, medicine groove 11, liquid medicine spraying system 12, liquid medicine delivery system 13, waste gas recovery system 14, liquid medicine warehouse 15, liquid medicine storage cabin 19 , Liquid medicine flow control drum 20, medicine dosing groove 21, medicine pipe 22, permeable stone 23.

Embodiment: As shown in Figure 1, this embodiment specifically relates to a kind of ectopic restoration equipment for organic matter-contaminated soil, which includes a soil crushing and mixing cabin 1, a liquid dosing reaction cabin 2, and a crawler conveyor system 3; the soil crushing and mixing cabin 1 It is arranged side by side with the liquid dosing reaction chamber 2, and the crawler conveyor system 3 passes through the bottom of the soil crushing and mixing chamber 1 and the liquid dosing reaction chamber 2 sequentially along the horizontal direction; The feeding port 4 is loaded into the soil crushing and mixing chamber 1, and then the soil falls on the upper surface of the crawler conveyor system 3, and is transported to the interior of the liquid dosing reaction chamber 2 along with the crawler conveyor system 3.

As shown in Figure 1, the feeding port 4 and the crushing blade group 5 are all arranged on the top of the crawler conveyor system 3; the top of the feeding port 4 of the soil crushing and mixing cabin 1 is provided with a solid medicament delivery system 6 for feeding the soil to the crushing and mixing cabin. 1. Add solid remediation agents to the soil inside; the soil crushing mixing cabin 1 is provided with a crushing blade group 5; each crushing blade group 5 includes a blade drum 7 and a blade 8 installed on the outer surface of the blade drum 7; During the process, the blade cylinder 7 rotates along its axis, and the blade 8 is driven by the blade cylinder 7 to crush the soil and mix the soil with the solid agent injected by the solid agent delivery system 6 and the broken soil; in this embodiment Among them, the number of crushing blade groups 5 is three, wherein one crushing blade group 5 is arranged along the running direction of the crawler belt conveyor system 3, and the laying direction of the remaining two crushing blade groups 5 is perpendicular to the running direction of the crawler belt conveyor system 3.

As shown in Figures 2 and 3, the solid medicament delivery system 6 includes a solid medicament storage cabin 9 and a solid medicament flow control drum 10; The bottom opening of the solid medicament storage compartment 9 is blocked; the surface of the solid medicament flow control drum 10 is provided with a number of dosing grooves 11; the solid medicament delivery system 6 is in the process of injecting solid medicament, and the solid medicament flow control drum 10 continues to rotate; The solid medicine in the solid medicine storage compartment 9 falls into the dosing groove 11 of the solid medicine flow control drum 10; when the opening of the medicine groove 11 containing the solid medicine is facing downward, the solid medicine inside falls into the soil and is broken Inside the mixing chamber 1 ; by controlling the flow rate of the solid medicament and controlling the rotation speed of the drum 10 , the dosed quantity of the solid medicament dispensing system 6 can be controlled.

As shown in Figure 1, liquid medicine spraying system 12 and liquid medicine dispensing system 13 are arranged inside liquid dosing reaction cabin 2; Exhaust gas recovery system 14 and liquid medicine warehouse 15 are arranged on the top of liquid medicine adding reaction cabin 2; The warehouse 15 is used to supply the liquid remediation agent to the liquid agent spraying system 12 and the liquid agent delivery system 13; The soil is sprayed with liquid remediation agents.

As shown in Figures 1 and 4, the exhaust gas recovery system 14 includes a sieve bucket, on which a number of ventilation holes are provided, and a pollutant adsorbent is arranged inside the screen bucket; the pollutant adsorbent is used to remove harmful substances in the gas; the soil The waste gas produced by the reaction of the pollutants in the air with the solid repair agent and the liquid repair agent floats upwards, and is discharged into the air after being sucked by the waste gas recovery system 14 to remove harmful components.

As shown in Figures 1, 5, and 6, the liquid medicament delivery system 13 includes a liquid medicament storage cabin 19 and a liquid medicament flow control drum 20; the liquid medicament flow control drum 20 is installed at the bottom opening of the liquid medicament storage cabin 19, and the liquid medicament flow control The drum 20 blocks the bottom opening of the liquid medicine storage compartment 19; the surface of the liquid medicine flow control drum 20 is provided with a number of dosing grooves 21; when the liquid medicine dispensing system 13 injects the liquid medicine, the liquid medicine flow control roller 20 continues to Rotate; the liquid medicament inside the liquid medicament storage compartment 19 falls into the inside of the dosing groove 21 of the liquid medicine flow control drum 20; when the opening of the dosing groove 21 containing the liquid medicine is facing downward, the liquid medicine inside it falls into the soil on the surface of the crawler conveyor system 3; by controlling the flow rate of the liquid medicament and controlling the rotation speed of the drum 20, the dosed quantity of the liquid medicament dispensing system 13 can be controlled.

As shown in Figures 1 and 7, the liquid medicament spraying system 12 includes a medicament tube 22 arranged in the horizontal direction, and the medicament tube 22 is connected to an external pipe; the side wall of the medicament tube 22 is provided with a bar-shaped opening extending along its axis direction ; The strip opening is filled by the permeable stone 23 . During operation, the liquid remediation agent in the agent pipe 22 slowly passes through the permeable stone 23 and drops into the soil on the surface of the crawler conveyor system 3 .

During use, the soil to be repaired is poured into the interior of the soil crushing and mixing chamber 1 from the feeding port 4, and at the same time, the solid agent delivery system 6 is used to add solid repair agents to the interior of the soil crushing and mixing chamber 1; then the crushing blade group 5 crushes the soil , and fully mix the soil with the solid remediation agent; after mixing, the crawler conveyor system 3 transmits the soil to the inside of the liquid dosing reaction chamber 2; the liquid agent spraying system 12 and the liquid agent delivery system 13 spray the liquid remediation agent to the soil; the solid remediation The medicament and the liquid remediation medicament react with the pollutants in the soil, and the gas generated is processed by the waste gas recovery system 14 at the top of the liquid dosing reaction chamber 2 .

The beneficial effects of this embodiment are: (1) The method of multiple doses is used to ensure that the repairing agent is evenly injected into the soil; (2) the equipment uses a variety of repairing agents to repair the soil, ensuring the efficiency of construction and the effect of the agent (3) The equipment is designed with an activated carbon adsorption area as a waste gas recovery system, which can effectively prevent secondary pollution caused by gas leakage during the reaction process.

Claims (8)

1. An ectopic remediation device for organic-contaminated soil, characterized in that: it includes a solid medicament delivery system, a soil crushing and stirring cabin, a liquid dosing reaction cabin, and a crawler conveyor system; the crawler conveyor system passes through the The bottom of the soil crushing and stirring cabin and the liquid dosing reaction cabin; the top of the soil crushing and stirring cabin is provided with a feeding port, and the solid medicament delivery system is installed above the feeding port; the inside of the soil crushing and stirring cabin A crushing blade set is provided; a liquid medicament spraying system and a liquid medicament dispensing system are arranged inside the liquid dosing reaction chamber; an exhaust gas recovery system is arranged on the top of the liquid dosing reaction chamber. 2. The ex-situ restoration equipment for organic-contaminated soil according to claim 1, characterized in that: the feeding port and the crushing blade group are both arranged above the crawler conveyor system. 3. The ectopic restoration equipment for organic-contaminated soil according to claim 1, characterized in that: the solid medicament delivery system includes a solid medicament storage cabin and a solid medicament flow control drum; the solid medicament flow control drum is installed At the bottom opening of the solid medicament storage compartment, the solid medicament flow control roller blocks the bottom opening of the solid medicament storage compartment; several dosing grooves are arranged on the surface of the solid medicament flow control roller. 4. The equipment for ex-situ restoration of organic-contaminated soil according to claim 1, wherein the crushing blade set includes a blade drum and blades installed on the outer surface of the blade drum. 5. The ectopic restoration equipment for organic-contaminated soil according to claim 1, characterized in that: the exhaust gas recovery system includes a sieve bucket, and a number of ventilation holes are opened on the sieve bucket, and the inside of the sieve bucket is set There are pollutant adsorbents. 6. The ectopic restoration equipment for organic-contaminated soil according to claim 1, characterized in that: a liquid medicine chamber is arranged on the top of the liquid dosing reaction chamber, and the liquid medicine chamber is connected to the liquid medicine spraying chamber. system and the liquid medicament delivery system; the liquid medicament spraying system and the liquid medicament delivery system are evenly arranged above the crawler conveyor system. 7. The ectopic restoration equipment for organic-contaminated soil according to claim 1, characterized in that: the liquid agent delivery system includes a liquid agent storage cabin and a liquid agent flow control roller; the liquid agent flow control roller is installed At the bottom opening of the liquid medicament storage compartment, the liquid medicament flow control roller blocks the bottom opening of the liquid medicament storage compartment; the surface of the liquid medicament flow control roller is provided with a number of dosing grooves. 8. The ectopic remediation equipment for organic-contaminated soil according to claim 1, characterized in that: the liquid agent spraying system includes agent pipes arranged along the horizontal direction, and the side walls of the agent pipes are provided with A strip-shaped opening extending in the axial direction; the strip-shaped opening is filled with permeable stones.