CN207446952U - A kind of packaged type agitating device of contaminated soil elution - Google Patents

Abstract

The utility model discloses a kind of packaged type agitating devices of contaminated soil elution,Including agitator tank,Leacheate feeding mechanism and screen drum,Agitator tank includes babinet,Stirring shaft,Bearing,Stirrer paddle and stirring motor,Babinet includes case lid,Screen drum is fixed in babinet,The upper end of stirring shaft and the output axis connection of stirring motor,The lower end of stirring shaft is located at through case lid in screen drum,Stirring shaft is connected with case lid by bearing,Stirring shaft is equipped with multiple stirring blades,Screen drum is equipped with feed pipe and discharge nozzle,Feed pipe exports and discharging tube inlet is connected with screen drum,Charging tube inlet and discharge nozzle outlet are respectively positioned on outside babinet,Leacheate feeding mechanism includes liquid reserve tank,Woven hose and drawing liquid pump,Infusion tube inlet is connected with liquid reserve tank,Infusion tube inlet is located at through case lid above screen drum,Pedestal is equipped with multiple equally distributed universal wheels.The apparatus structure is simple, easy to operate, can effectively elute repairing polluted soil, and operating cost is low, and elution effect is good.

Description

A mobile mixing device for rinsing contaminated soil

technical field

The utility model relates to the field of environmental protection, in particular to the technical field of soil remediation equipment, in particular to a movable stirring device for washing polluted soil.

Background technique

With the development of industry and the acceleration of urbanization, soil environmental pollution caused by industrial production such as mining, electroplating, smelting, and coal combustion has become one of the most serious and widely distributed major environmental problems in my country, and has aroused great concern in countries all over the world. widespread attention. Soil leaching is one of the effective technical means for remediation of contaminated soil. The principle is to use water or chemical solvents (including acids, surfactants or chelating agents, etc.) The role is to transfer pollutants from the solid phase of the soil to the liquid phase. After leaching, the soil is separated from solid and liquid for recycling or safe disposal. The liquid phase containing pollutants is recycled or discharged after water treatment reaches the standard. Soil leaching technology has a wide range of applications and can remediate inorganic or organic pollutants such as heavy metals, radionuclides, cyanides, polycyclic aromatic hydrocarbons, pesticides, and polychlorinated biphenyls. It is suitable for remediation of heavy pollution, high sand content, and good permeability pollute the soil.

The traditional contaminated soil leaching process currently has the following problems: (1) The leaching process is cumbersome, with many complete sets of equipment and large investment, and the economic effect is low for the contaminated soil remediation plots with a small amount of pollution; (2) Soil leaching The process requires large water and chemical consumption, high cost, and low recovery rate; (3) The mobility of fixed large-scale equipment is poor, and the cost of earthwork transportation is high when dealing with point source contaminated soil with a wide distribution area.

Contents of the invention

In order to solve the problems existing in the above-mentioned prior art, the utility model provides a movable stirring device for washing polluted soil. Low, good elution effect.

The technical scheme adopted to realize the above-mentioned purpose of the utility model is:

A mobile stirring device for leaching contaminated soil, including a base, a stirring box, a eluent feeding mechanism, and a sieve cylinder, the top of the sieve cylinder is open, and the stirring box includes a box body, a stirring shaft, a bearing, a stirring blade, and a stirring The motor, the box body is fixed on the base, the box body includes a box cover, and the screen cylinder is fixed in the box body. The upper end of the stirring shaft is connected to the output shaft of the stirring motor, and the lower end of the stirring shaft passes through the box cover and is located in the lower part of the screen cylinder. The rotating shaft and the center of the box cover are connected by bearings. The stirring shaft is perpendicular to the box cover. There are multiple stirring blades evenly arranged on the stirring shaft. The feeding pipe and the discharging pipe are arranged on the screen cylinder, and the outlet of the feeding pipe is connected with the screen cylinder. , the inlet of the feed pipe passes through the box and is located outside the box, the inlet of the discharge pipe is connected with the sieve cylinder, the outlet of the discharge pipe passes through the box and is located outside the box, and the eluent feeding mechanism includes a liquid storage tank, an infusion tube and The liquid suction pump and the liquid storage tank are fixed on the base, the inlet of the infusion pipe is connected with the liquid storage tank, the inlet of the infusion pipe passes through the tank cover and is located above the sieve drum, and the base is provided with a plurality of evenly distributed universal wheels.

A plurality of evenly distributed protrusions are arranged on the stirring paddle.

The protrusions are conical.

Multiple stirring blades are divided into multiple groups of stirring blades, each group of stirring blades is composed of two stirring blades, multiple groups of stirring blades are distributed equidistantly along the axial direction of the stirring shaft, and the two stirring blades of each group of stirring blades are symmetrical Installed on the stirring shaft.

A liquid level sensor is provided in the tank, a drain pipe is provided at the bottom of the tank body, a sealing cover is provided at the outlet of the drain pipe, and a collecting bucket is provided under the drain pipe.

The feeding mechanism of the eluent also includes a spray pipe, which is installed horizontally directly above the screen cylinder. The two ports of the spray pipe are sealed. A plurality of sprinkler heads are uniformly arranged along the length direction.

The eluent feeding mechanism also includes an instantaneous flow meter, a flow control valve and a liquid feeding pipe, both of which are installed on the liquid delivery pipe, and the liquid feeding pipe communicates with the top of the liquid storage tank.

Both the feed pipe and the discharge pipe are arranged obliquely, the lower end of the feed pipe communicates with the upper part of the side wall of the screen drum, the upper end of the discharge pipe communicates with the bottom of the side wall of the screen drum, and a discharge valve is arranged on the discharge pipe.

Compared with the prior art, the utility model has the advantages and beneficial effects of:

1. The device is simple in structure and easy to operate, and the setting of the sieve cylinder can separate the soil from the eluent, realize the secondary utilization of the eluent, and save costs.

2. Protrusions are set on the stirring blade, which can further break the soil when the stirring blade is stirring, so that the soil and the eluent can be mixed more evenly.

3. The device is suitable for remediation of heavy industrial point source contaminated sites, remediation of farmland contaminated soil, and leaching and remediation of other heavily polluted and less polluted soil.

Description of drawings

Figure 1 is a schematic diagram of the internal structure of a movable stirring device for rinsing contaminated soil.

Fig. 2 is a schematic diagram of the external structure of the movable stirring device for rinsing contaminated soil.

Fig. 3 is an assembly drawing of the stirring shaft and the stirring paddle.

Among them, 1-base, 2-universal wheel, 3-liquid storage tank, 4-filling pipe, 5-infusion pipe, 6-instantaneous flow meter, 7-protrusion, 8-flow control valve, 9-stirring paddle Leaf, 10-suction pump, 11-stirring shaft, 12-box cover, 13-stirring motor, 14-bearing, 15-spray pipe, 16-spray head, 17-sieve cylinder, 18-box, 19 - discharge valve, 20 - discharge pipe, 21 - discharge pipe, 22 - sealing cover; 23 - collection bucket, 24 - feed pipe, 25 - liquid level sensor.

Detailed ways

Below in conjunction with specific accompanying drawing, the utility model is described in detail.

The structure of the movable stirring device for rinsing polluted soil provided by the utility model is shown in Fig. 1 and Fig. 2 .

The top of the sieve cylinder is open, and the pore size of the sieve cylinder screen is 0.05-0.1 mm. It is necessary to ensure that most of the soil aggregates cannot pass through during the leaching process.

Stirring box comprises casing 18, stirring rotating shaft 11, bearing 14, stirring paddle 9 and stirring motor 13, and casing 18 is fixed on the base 1, and casing 18 includes casing cover 12. The sieve drum 17 is fixed in the casing 18, the upper end of the stirring shaft 11 is connected with the output shaft of the stirring motor 13, the lower end of the stirring shaft 11 passes through the case cover 12, the lower end of the stirring shaft 11 is located above the bottom of the sieve drum 17, and the stirring shaft 11 It is connected with the case cover 12 through a bearing 14, and the stirring shaft 11 is perpendicular to the case cover 12.

The stirring shaft 11 is provided with multiple groups of stirring blades 9 equidistant along its axial direction, each group of stirring blades 9 is composed of two stirring blades, and the two stirring blades of each group of stirring blades 9 are symmetrically installed on the stirring shaft 11, In this embodiment, there are 3 groups of stirring blades. Each stirring paddle 9 is provided with a plurality of protrusions 7 evenly distributed, and the protrusions 7 are conical, and the protrusions can also be in other shapes. The effect of the protrusions is to make the soil broken more thoroughly and mix evenly.

The upper part of the side wall of the screen cylinder 17 is provided with a feed pipe 24, the feed pipe 24 is arranged obliquely, the lower end of the feed pipe 24 communicates with the screen cylinder 17, and the upper end of the feed pipe 24 passes through the side wall of the box body 18 and is located outside the box body 18. . The bottom of the side wall of the screen cylinder 17 is provided with a discharge pipe 20, the upper end of the discharge pipe 20 communicates with the screen cylinder 17, the lower end of the discharge pipe 20 passes through the side wall of the casing 18 and is located outside the casing, and the discharge pipe 20 is provided with a discharge pipe 20. Valve 19, after soil mixing, stirring and rinsing, open the discharge valve to allow the soil to flow out together with the eluent.

A liquid level sensor 25 is provided inside the tank 18 , a drain pipe 21 is provided at the bottom of the tank 18 , a sealing cover 22 is provided at the outlet of the drain pipe 21 , and a collection barrel 23 is provided below the drain pipe 21 . The liquid level sensor detects the liquid level of the eluent in the tank. When the liquid level sensor detects that the liquid level in the tank is too high, it indicates that there is too much eluent. At this time, the sealing cover is opened and the eluent flows through the drain pipe to the Collect it in the bucket for next use.

The eluent feeding mechanism includes a liquid storage tank 3, an infusion pipe 5, a pump 10, a spray pipe 15, an instantaneous flow meter 6, a flow control valve 8 and a liquid feeding pipe 4, and the liquid storage tank 3 is fixed on the base 1 . The two ports of the spray pipe 15 are sealed, and the spray pipe 15 is horizontally installed directly above the sieve cylinder 17, and the spray pipe 15 is evenly provided with a plurality of spray heads 16 along the length direction of the spray pipe. The inlet of the infusion pipe 5 communicates with the liquid storage tank 3 , and the outlet of the infusion pipe 5 communicates with the side wall of the spray pipe 15 . The suction pump 10, the instantaneous flow meter 6 and the flow control valve 8 are all installed on the infusion pipe 5, and the flow of the eluent is adjusted by displaying the flow of the eluent on the instantaneous flow meter. The liquid feeding pipe 4 communicates with the top of the liquid storage tank 3, through which the eluent is added to the liquid storage tank.

The base 1 is provided with a plurality of evenly distributed universal wheels 2. In the present embodiment, there are four universal wheels, and the four universal wheels 2 are distributed in a square shape. The four universal wheels 2 support the base, and the four universal wheels A universal wheel can move the whole device.

The usage method of the mobile stirring device for washing polluted soil is as follows:

After the contaminated soil is excavated and pretreated for preliminary crushing and impurity removal, it is fed into the screen cylinder through the feed pipe, and then the stirring motor is turned on. The stirring motor drives the stirring shaft to start rotating, and the stirring shaft drives the stirring blades to stir the soil. The protrusion rotates to break the soil more thoroughly. At the same time, the liquid suction pump is turned on, and the liquid suction pump starts to work. Spray out, and the stirring shaft rotates continuously, so that the eluent and the soil are evenly mixed to wash the soil. When there is too much eluent in the box, open the sealing cover, and the eluent flows into the collection barrel through the outlet pipe for supply. For the next use, after the soil is mixed, stirred and rinsed, the discharge valve is opened to allow the soil to flow out together with the rinse solution.

Claims (8)

1. a kind of packaged type agitating device of contaminated soil elution, including pedestal, it is characterised in that：Further include agitator tank, leaching Washing lotion feeding mechanism and screen drum, screen drum open top, agitator tank include babinet, stirring shaft, bearing, stirrer paddle and stirring electricity Machine, babinet are fixed on pedestal, and babinet includes case lid, and screen drum is fixed in babinet, the upper end of stirring shaft and stirring motor Axis connection is exported, the lower end of stirring shaft is located at through case lid center in screen drum lower part, and stirring shaft is connected with case lid by bearing It connects, stirring shaft is evenly provided with multiple stirrer paddles on case lid, stirring shaft, and screen drum is equipped with feed pipe and discharging Pipe, feed pipe outlet are connected with screen drum, and charging tube inlet is located at through babinet outside babinet, and discharging tube inlet is connected with screen drum, is gone out Expects pipe outlet is located at through babinet outside babinet, and leacheate feeding mechanism includes liquid reserve tank, woven hose and drawing liquid pump, and liquid reserve tank is fixed In on pedestal, infusion tube inlet is connected with liquid reserve tank, and infusion tube inlet is located at through case lid above screen drum, and pedestal is equipped with multiple Equally distributed universal wheel.

2. the packaged type agitating device of contaminated soil elution according to claim 1, it is characterised in that：On stirrer paddle Equipped with equally distributed multiple protrusions.

3. the packaged type agitating device of contaminated soil elution according to claim 2, it is characterised in that：The protrusion It is tapered.

4. the packaged type agitating device of contaminated soil elution according to claim 3, it is characterised in that：Multiple agitating paddles Leaf is divided into multigroup stirrer paddle, and every group of stirrer paddle is made of two stirrer paddles, and multigroup stirrer paddle is axial etc. along stirring shaft Range distribution, and two stirrer paddles of every group of stirrer paddle are symmetrically arranged on stirring shaft.

5. the packaged type agitating device of contaminated soil elution according to claim 1, it is characterised in that：It is equipped in babinet Liquid level sensor, the bottom of box are equipped with drain pipe, and drain pipe outlet is equipped with sealing cover, collecting vessel is equipped with below drain pipe.

6. the packaged type agitating device of contaminated soil elution according to claim 1, it is characterised in that：Leacheate is fed Mechanism further includes spray tube, and spray tube is horizontally installed to the surface of screen drum, the sealing of spray tube two-port, woven hose outlet and spray Shower pipe side wall connects, and multiple spray heads are evenly provided with along the length direction of spray tube on spray tube.

7. the packaged type agitating device of contaminated soil elution according to claim 6, it is characterised in that：Leacheate is fed Mechanism further includes instantaneous flowmeter, flow control valve and liquid-feeding tube, and instantaneous flowmeter and flow control valve are mounted on woven hose On, liquid-feeding tube at the top of liquid reserve tank with connecting.

8. the packaged type agitating device of contaminated soil elution according to claim 1, it is characterised in that：Feed pipe and go out Expects pipe is obliquely installed, and feed pipe lower end is connected with screen drum side wall upper part, and discharge nozzle upper end is connected with screen drum sidewall bottom, discharging Pipe is equipped with outlet valve.