CN209829861U - A device for treating high-concentration arsenic-contaminated soil - Google Patents

Abstract

The utility model discloses a high-concentration arsenic-polluted soil treatment device, which comprises a bracket and a conveyor belt, wherein the conveyor belt is rotatably installed on the bracket, a stirring box is fixedly installed at the upper end of the bracket, a feed inlet is formed at the upper end of the stirring box, a discharge outlet is formed at the lower end of the stirring box, first baffles are symmetrically and fixedly welded at two sides of the inner wall of the bracket, the first baffles are obliquely arranged, and the second baffles are fixed on the bracket; the driving stirring motor drives the stirring paddle to rotate, the polluted soil is driven to be smashed and scattered, the polluted soil is stirred and conveyed, the remediation efficiency of the polluted soil is higher, the transmission speed of the conveyor belt is controlled, and the proportion of the solution and the soil is controlled, so that the problems that the physicochemical property of the soil is damaged due to the overhigh acidity, a large amount of soil nutrients are leached, and the micro-aggregate structure of the soil is damaged are solved; meanwhile, the subsequent treatment cost is increased by avoiding the waste liquid generated by excessive leaching.

Description

A device for treating high-concentration arsenic-contaminated soil

technical field

The utility model relates to the technical field of contaminated soil treatment devices, in particular to a high-concentration arsenic-contaminated soil treatment device.

Background technique

As a typical toxic element, arsenic has long been regarded as an important research object of environmental geochemistry. The difference in the chemical form and valence state of arsenic in the environment directly leads to the difference in its toxicity. Under normal pollution levels, animals, plants and microorganisms living in the soil will show corresponding damage symptoms. Acute and chronic poisoning will occur when the human body is directly or indirectly exposed to different concentrations of arsenic pollutants. Sudden major environmental pollution accidents refer to the use of leaching agents to wash contaminated soil, so that heavy metals in the solid phase of the soil can be transferred to the liquid phase of the soil, reducing the toxicity of pollutants.

Arsenic pollution control methods mainly include physical, chemical and biological methods. The physical method mainly uses some engineering measures to treat polluted soil. For soil arsenic pollution, if the pollution is serious but the contaminated area is not large, the method of soil replacement or foreign soil can be used, and the replaced soil should be properly treated to prevent secondary pollution. Chemical methods mainly include soil leaching method, vitrification method, electrochemical method and so on. Biological methods mainly include soil animal remediation, microbial remediation, phytoremediation, etc.

The existing method of leaching polluted soil with acid solution cannot control the ratio of solution to soil. Excessive acidity will destroy the physical and chemical properties of soil, leaching a large amount of soil nutrients and destroying the structure of soil microaggregates. At the same time, the waste liquid produced by too much leaching increases the subsequent treatment cost and limits its application in soil remediation. Therefore, we need to provide a high-concentration arsenic-contaminated soil treatment device.

Utility model content

The purpose of this utility model is to provide a high-concentration arsenic-contaminated soil treatment device, which drives the stirring motor to drive the stirring paddle to rotate, drives to smash and disperse the polluted soil, stirs and transports the polluted soil, and makes the restoration efficiency of the polluted soil more efficient. High, by controlling the transmission speed of the conveyor belt, controlling the ratio of the solution to the soil, solving the problem that excessive acidity will destroy the physical and chemical properties of the soil, causing a large amount of soil nutrients to be leached, and destroying the structure of soil microaggregates; at the same time avoiding excessive acidity The waste liquid generated by rinsing increases the cost of subsequent treatment, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a high-concentration arsenic-contaminated soil treatment device, including a bracket and a conveyor belt, the conveyor belt is rotatably mounted on the bracket, a stirring box is fixedly installed on the upper end of the bracket, and the stirring The upper end of the box is provided with a material inlet, and the lower end of the stirring box is provided with a discharge port. The inner wall of the support is symmetrically fixed and welded with a first baffle on both sides. The first baffle is arranged obliquely, and one end of the support The top is fixed with a water receiving pipe, the lower end of the water receiving pipe is connected with a branch pipe, the lower surface of the branch pipe is equipped with a nozzle, and a second baffle is arranged between the mixing box and the water receiving pipe, and the second baffle is fixed on the stand.

Preferably, the lower end of the bracket is fixedly welded with outriggers, and the outriggers are fixedly welded at four corners of the bracket.

Preferably, a material guide plate is installed on the lower side of one end of the conveyor belt, the material guide plate is fixed on the leg, and the upper end of the material guide plate is attached to the surface of the conveyor belt.

Preferably, a drive motor is fixedly installed on the outer side wall of the bracket, and the drive shaft of the drive motor is in transmission connection with the rotating shaft installed at one end of the conveyor belt.

Preferably, a worm is fixedly installed on the drive shaft of the transmission motor, a worm wheel is fixedly installed at one end of the rotating shaft, and the worm meshes with the worm wheel.

Preferably, a stirring shaft is installed in rotation in the stirring box, a stirring paddle is fixedly installed on the stirring shaft, a stirring motor is fixedly mounted on the top of the stirring box, and the driving shaft of the stirring motor and the stirring shaft are driven by gears. connect.

Preferably, a scraper is fixedly installed on the lower end of the stirring shaft, a filter screen is installed in the stirring box, and the filter screen is arranged between the stirring paddle and the scraper.

Compared with the prior art, the beneficial effects of the utility model are:

Drive the stirring motor to drive the stirring paddle to rotate, drive the polluted soil to be broken up, and the polluted soil is stirred and transported to make the restoration of the polluted soil more efficient. By controlling the transmission speed of the conveyor belt, the ratio of the solution to the soil is controlled. Solve the problem that excessive acidity will destroy the physical and chemical properties of the soil, cause a large amount of soil nutrient leaching, and destroy the structure of soil microaggregates; at the same time, avoid excessive leaching of waste liquid that increases the cost of follow-up treatment, which is conducive to soil restoration. in the application.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a side view cut-away structure schematic diagram of the utility model;

Fig. 3 is the top view structure schematic diagram of the utility model;

Fig. 4 is a structural schematic diagram of the mixing tank in the utility model.

In the figure: 1. Bracket; 2. Outrigger; 3. Conveyor belt; 4. Shaft; 5. Worm wheel; 6. Worm; 7. Transmission motor; 8. Stirring box; 9. Stirring motor; 10. Discharge port; 11 , feed inlet; 12, first baffle; 13, second baffle; 14, water pipe; 15, branch pipe; 16, nozzle; 17, feed plate; 18, stirring shaft; 19, stirring blade; 20, filter Stencil; 21, scraper.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-4, the utility model provides a technical solution: a high-concentration arsenic-contaminated soil treatment device, including a bracket 1 and a conveyor belt 3, the conveyor belt 3 is rotatably mounted on the bracket 1, and the upper end of the bracket 1 is fixed A stirring box 8 is installed, the upper end of the stirring box 8 is provided with a feed inlet 11, the lower end of the stirring box 8 is provided with a discharge port 10, and the inner wall of the support 1 is symmetrically fixed and welded with a first baffle plate 12 on both sides. , the first baffle plate 12 is arranged obliquely, a water receiving pipe 14 is fixed through the top of one end of the support 1, and the lower end of the water receiving pipe 14 is connected with a branch pipe 15, and a nozzle 16 is installed on the lower surface of the branch pipe 15, so A second baffle 13 is arranged between the stirring tank 8 and the water receiving pipe 14 , and the second baffle 13 is fixed on the support 1 .

Specifically, the lower end of the bracket 1 is fixedly welded with outriggers 2, and the outriggers 2 are fixedly welded at the four corners of the bracket 1. By setting the outriggers 2, it is convenient to support and fix the device, and it is convenient to use.

Specifically, a material guide plate 17 is installed on the lower side of one end of the conveyor belt 3, and the material guide plate 17 is fixed on the leg 2. The upper end of the material guide plate 17 is attached to the surface of the conveyor belt 3, and the conveyor belt 3 will process the soil. Guide and concentrate collection and processing through the material guide plate 17, the upper end of the material guide plate 17 can hang and remove the soil adhering to the conveyor belt 3.

Specifically, a transmission motor 7 is fixedly installed on the outer side wall of the support 1, the drive shaft of the transmission motor 7 is connected to the rotating shaft 4 installed at one end of the conveyor belt 3, and the transmission motor 7 provides a power source for the conveyor belt 3. for stable operation.

Specifically, a worm 6 is fixedly mounted on the drive shaft of the transmission motor 7 , and a worm wheel 5 is fixedly mounted on one end of the rotating shaft 4 , and the worm 6 is meshed with the worm wheel 5 .

Specifically, a stirring shaft 18 is installed in rotation in the stirring box 8, a stirring paddle 19 is fixedly installed on the stirring shaft 18, a stirring motor 9 is fixedly mounted on the top of the stirring box 8, and the driving of the stirring motor 9 The shaft is connected to the stirring shaft 18 through a gear transmission, and the stirring motor 9 drives the stirring shaft 18 to rotate, so as to facilitate the control of the stirring process.

Specifically, the lower end of the stirring shaft 18 is fixedly equipped with a scraper 21, and a filter screen 20 is installed in the stirring box 8, and the filter screen 20 is arranged between the stirring paddle 19 and the scraper 21. The filter screen plate 20 is used to filter the crushed soil.

Working principle: When in use, an external power supply is used to provide electric energy for all electrical appliances of the device, and the polluted soil is put into the mixing box 8 through the feeding port 11, and the stirring paddle 19 is driven to rotate by driving the stirring motor 9, which drives the polluted soil to be cleaned. Broken and scattered, the soil passing through the mixing box 8 is discharged from the discharge port 10 and falls on the upper surface of the conveyor belt 3. Under the operation of the conveyor belt 3 and the restrictions of the first baffle plate 12 and the second baffle plate 13, the contaminated soil is evenly distributed. Tiling on the upper surface of the conveyor belt 3 through the second baffle 13, the upper end of the water receiving pipe 14 is communicated with the chemical solution through the pipeline, the solution is sprayed out through the nozzle 16, and the polluted soil on the conveyor belt 3 is evenly sprayed. Transmission speed, control the ratio of solution and soil, solve the problem that excessive acidity will destroy the physical and chemical properties of soil, cause a large amount of soil nutrients to leaching, and destroy the structure of soil microaggregates; at the same time, avoid excessive leaching of waste liquid The cost of follow-up treatment is increased, which is beneficial to the application in soil remediation.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (7)

1. A treatment device for high-concentration arsenic-contaminated soil, comprising a support (1) and a conveyor belt (3), characterized in that: the conveyor belt (3) is rotatably mounted on the support (1), and the upper end of the support (1) is fixed A stirring box (8) is installed, the upper end of the stirring box (8) is provided with a feed inlet (11), the lower end of the stirring box (8) is provided with a discharge opening (10), and the support (1) The first baffle (12) is fixed and welded symmetrically on both sides of the inner wall, and the first baffle (12) is arranged obliquely. The top of one end of the bracket (1) is fixed with a water receiving pipe (14), and the water receiving pipe ( The lower end of 14) is communicated with a branch pipe (15), the lower surface of the branch pipe (15) is equipped with a spray nozzle (16), and a second baffle plate (13) is arranged between the mixing tank (8) and the water pipe (14). ), the second baffle (13) is fixed on the bracket (1). 2. A device for treating high-concentration arsenic-contaminated soil according to claim 1, characterized in that: the lower end of the support (1) is fixedly welded with a leg (2), and the leg (2) is fixedly welded on the four corners of the bracket (1). 3. A device for treating high-concentration arsenic-contaminated soil according to claim 2, characterized in that: a material guide plate (17) is installed on the lower side of one end of the conveyor belt (3), and the material guide plate (17) is fixed on On the legs (2), the upper end of the material guide plate (17) is attached to the surface of the conveyor belt (3). 4. A device for treating high-concentration arsenic-contaminated soil according to claim 1, characterized in that: a transmission motor (7) is fixedly installed on the outer side wall of the support (1), and the transmission motor (7) The driving shaft of the drive shaft is connected with the rotating shaft (4) transmission that one end of the conveyor belt (3) is installed. 5. A device for treating high-concentration arsenic-contaminated soil according to claim 4, characterized in that: a worm (6) is fixedly installed on the driving shaft of the transmission motor (7), and one end of the rotating shaft (4) A worm wheel (5) is fixedly installed, and the worm (6) is meshed with the worm wheel (5). 6. A device for treating high-concentration arsenic-contaminated soil according to claim 1, characterized in that: a stirring shaft (18) is installed in rotation in the stirring box (8), and is fixedly installed on the stirring shaft (18) A stirring paddle (19) is arranged, and a stirring motor (9) is fixedly installed on the top of the stirring box (8), and the drive shaft of the stirring motor (9) is connected with the stirring shaft (18) through a gear transmission. 7. A device for treating high-concentration arsenic-contaminated soil according to claim 6, characterized in that: a scraper (21) is fixedly installed at the lower end of the stirring shaft (18), and a scraper (21) is installed inside the stirring box (8). There is a filter screen (20), and the filter screen (20) is arranged between the stirring paddle (19) and the scraper (21).