CN215614045U

CN215614045U - Heavy metal adsorption device in heavy metal contaminated soil

Info

Publication number: CN215614045U
Application number: CN202122357637.4U
Authority: CN
Inventors: 王凯; 杨艳生; 李思奇; 曹炎; 侯晓伟
Original assignee: SHANDONG SHOUGUANG LUQING PETROCHEMICAL CO Ltd
Current assignee: SHANDONG SHOUGUANG LUQING PETROCHEMICAL CO Ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-01-25
Anticipated expiration: 2031-09-27

Abstract

The utility model provides a heavy metal adsorption device in heavy metal contaminated soil, relates to the technical field of soil remediation, and mainly aims to provide soil remediation equipment which can continuously work and is high in working efficiency. This heavy metal adsorption equipment in heavy metal contaminated soil includes: the device comprises a base plate, a stirring tank, a driving device, a separation filter tank and a high-pressure pump; the stirring tank is fixedly arranged above the base plate through a driving device, a feeding hole and a discharging hole are respectively formed in the two ends of the stirring tank in the axis direction, a liquid discharge pipe is arranged at the feeding hole, and the separation filter is positioned below the discharging hole; a filter plate is arranged in the separation filter, the filter plate can divide the separation filter into a first storage area for storing soil and a second storage area for storing liquid, and a liquid pumping pipe is arranged at the second storage area; the high-pressure pump is respectively communicated with the liquid pumping pipe and the liquid discharge pipe, and liquid in the second storage area can be conveyed to the liquid discharge pipe through the liquid pumping pipe under the action of the high-pressure pump and is discharged into the stirring tank through the liquid discharge pipe.

Description

Heavy metal adsorption device in heavy metal contaminated soil

Technical Field

The utility model relates to the technical field of soil remediation, in particular to a heavy metal adsorption device in heavy metal contaminated soil.

Background

The soil heavy metal pollution refers to the condition that the content of trace metal elements in soil exceeds a background value and is excessively high due to excessive deposition because of human activities, and is generally called soil heavy metal pollution, no matter air, soil and even drinking water contain heavy metals, such as aging-causing free radicals, particles harmful to skin, dust in air, automobile exhaust and the like, even tap water brings heavy metals to skin, after the heavy metals are accumulated, the harm to human bodies is quite large, the soil pollution of local areas is serious, for example, cadmium, mercury, lead, arsenic and the like commonly exist in certain areas in the middle and lower reaches of Yangtze river, mercury and lead are commonly exist in cities and the periphery, radioactive abnormality obviously exists in part of cities, harmful element enrichment in lakes and soil acidification is serious. Heavy metal adsorption equipment is one of the device that uses in handling heavy metal contaminated soil, and current heavy metal adsorption equipment uses chemical extraction liquid to adsorb soil mostly, because most of devices are closed reactor, unable continuation work, and inefficiency can't satisfy a large amount of absorption requirements, has reduced heavy metal adsorption equipment's practicality.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a heavy metal adsorption device in heavy metal contaminated soil, and aims to solve the technical problem that the soil heavy metal adsorption device in the prior art cannot continuously adsorb and accordingly is low in working efficiency. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the utility model are described in detail in the following.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a heavy metal adsorption device in heavy metal contaminated soil, which comprises: the device comprises a base plate, a stirring tank, a driving device, a separation filter tank and a high-pressure pump;

the stirring tank is fixedly arranged above the base plate through the driving device, the driving device can drive the stirring tank to rotate by taking the axis of the stirring tank as a shaft, a feed port and a discharge port are respectively arranged at two ends of the stirring tank in the axis direction, a liquid discharge pipe is arranged at the feed port, and the separation filter is positioned below the discharge port;

a filter plate is arranged in the separation filter, the filter plate can divide the separation filter into a first storage area for storing soil and a second storage area for storing liquid, and a liquid pumping pipe is arranged at the second storage area;

the high-pressure pump is respectively communicated with the liquid suction pipe and the liquid discharge pipe, and liquid in the second storage area can be conveyed to the liquid discharge pipe through the liquid suction pipe under the action of the high-pressure pump and is discharged into the stirring tank through the liquid discharge pipe;

the driving device comprises meshing teeth and a rotating gear, wherein the meshing teeth and the rotating gear are positioned on the outer peripheral side of the stirring tank in the axial direction, and when the rotating gear rotates, the meshing teeth in meshed connection with the rotating gear can rotate along with the rotating gear and drive the stirring tank to rotate.

Due to the existence of the high-pressure pump and the separation filter, the extract can be repeatedly injected into the soil, so that the continuous adsorption of heavy metal materials in the soil is realized; in addition, the stirring tank can rotate under the driving of the driving device, so that the extraction liquid and the soil to be treated are fully mixed, and the treatment efficiency is further improved.

On the basis of the technical scheme, the utility model can be further improved as follows.

As a further improvement of the utility model, the driving device further comprises at least two bases, and all the bases are positioned below the stirring tank and are sequentially arranged along the axial direction of the stirring tank;

any base orientation one side of agitator tank all is provided with through the support column is fixed the running gear, all the running gear passes through pivot fixed connection and all running gear's axis all with the axis coincidence of pivot.

As a further improvement of the present invention, the driving device further includes a motor, the motor is fixedly disposed on the substrate through a fixing seat, and the motor is in transmission connection with the rotating shaft through an engaging member.

As a further improvement of the present invention, the engaging member includes a first gear on the output shaft of the motor and a second gear on the rotating shaft.

As a further development of the utility model, the side of the filter plate facing away from the agitator tank is arranged obliquely downwards.

As a further improvement of the utility model, the middle part of the separation filter tank is upwards protruded to form a partition plate, and one end of the filter plate is fixedly connected with the partition plate.

As a further improvement of the utility model, the inner side wall of the stirring tank is convexly provided with a plurality of stirring teeth towards the axial direction.

As a further improvement of the utility model, the stirring teeth are uniformly arranged along the axial direction of the stirring tank.

As a further improvement of the utility model, a baffle is arranged outside the discharge port, and the projection of the baffle in the vertical direction can fall into the projection range of the separation filter in the vertical direction.

Compared with the prior art, the driving device in the heavy metal adsorption device in the heavy metal contaminated soil provided by the preferred embodiment of the utility model can drive the stirring tank to rotate, and the stirring teeth in the stirring tank can help to crush the large hardened soil, so that the extraction liquid can be fully contacted with the soil; the high-pressure pump can help to extract the extraction liquid to make the extraction liquid circularly treat the soil, so that heavy metal substances in the soil are further adsorbed, and the adsorption efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a part of the structure of a heavy metal adsorption device for heavy metal contaminated soil according to the present invention;

FIG. 2 is a schematic sectional view of the heavy metal adsorption apparatus for heavy metal contaminated soil according to the present invention.

In the figure: 1. a substrate; 2. a stirring tank; 21. a feed inlet; 22. a discharge port; 221. a baffle plate; 23. stirring teeth; 3. a drive device; 31. meshing teeth; 32. a rotating gear; 33. a base; 331. a support pillar; 34. a rotating shaft; 35. a motor; 36. an engaging member; 361. a first gear; 362. a second gear; 4. separating the filter; 41. a filter plate; 42. a first storage area; 43. a second storage area; 44. a partition plate; 5. a high pressure pump; 6. a liquid discharge pipe; 7. a liquid pumping pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.

As shown in figures 1-2, the utility model provides a heavy metal adsorption device in heavy metal contaminated soil, which comprises a fixedly installed base plate 1, and an agitator tank 2, a separation filter 4 and a high-pressure pump 5 which are positioned above the base plate 1, wherein the agitator tank 2 can be driven by a driving device 3 to rotate and stir materials positioned in the agitator tank 2, the materials can enter the agitator tank 2 through a feed inlet 21 and are discharged to the separation filter 4 through a discharge outlet 22, the separation filter 4 can carry out primary filtration on the discharged materials so as to separate liquid in the materials, and the separated liquid can be pumped to the feed inlet 21 through the high-pressure pump 5, so that the circulating flow of extraction liquid is realized.

Specifically, the stirring tank 2 is fixedly arranged on the substrate 1 through the driving device 3, the feed port 21 and the discharge port 22 are respectively located at two ends of the stirring tank 2 in the axial direction, and the driving device 3 can drive the stirring tank 2 to rotate by taking the axial line as a shaft. In order to conveniently put materials, a liquid discharge pipe 6 for conveying liquid is arranged at the position of the feed inlet 21; in order to facilitate the discharge of materials, the separation filter 4 is arranged below the discharge port 22. A filter plate 41 is arranged in the separation filter 4, the filter plate 41 can divide the separation filter 4 into a first storage area 42 for storing soil and a second storage area 43 for storing liquid, and a liquid pumping pipe 7 is arranged at the second storage area 43; the high-pressure pump 5 is respectively communicated with the liquid extracting pipe 7 and the liquid discharging pipe 6, and the liquid in the second storage area 43 can be conveyed to the liquid discharging pipe 6 through the liquid extracting pipe 7 under the action of the high-pressure pump 5 and is discharged into the stirring tank 2 through the liquid discharging pipe 6.

To effect rotation of the agitator tank 2. The driving device 3 comprises an engaging tooth 31 and a rotating gear 32 which are positioned on the outer periphery side in the axial direction of the stirring tank 2, and when the rotating gear 32 rotates, the engaging tooth 31 which is in meshed connection with the rotating gear can rotate along with the rotating gear and drives the stirring tank 2 to rotate. The number of the meshing teeth 31 and the number of the rotating gears 32 are consistent and are arranged in one-to-one correspondence.

Due to the existence of the high-pressure pump 5 and the separation filter tank 4, the extract can be repeatedly injected into the soil for multiple times, so that the continuous adsorption of heavy metal materials in the soil is realized; in addition, the stirring tank 2 can rotate under the driving of the driving device 3, so that the extraction liquid and the soil to be treated are fully mixed, and the treatment efficiency is further improved.

As an optional embodiment, the driving device 3 further includes at least two bases 33, and all the bases 33 are located below the stirring tank 2 and are sequentially arranged along the axial direction of the stirring tank 2; one side of any base 33 facing the stirring tank 2 is fixedly provided with a rotating gear 32 through a supporting column 331, all the rotating gears 32 are fixedly connected through a rotating shaft 34, and the axes of all the rotating gears 32 are overlapped with the axis of the rotating shaft 34.

At this time, the base 33 can support the agitation tank 2 to be lifted by a certain height with respect to the base plate 1, thereby facilitating the rotation of the agitation tank 2.

As an alternative embodiment, the driving device 3 further includes a motor 35, the motor 35 is fixedly disposed on the substrate 1 through a fixing seat, and the motor 35 is in transmission connection with the rotating shaft 34 through an engaging member 36.

Under the driving action of the motor 35, the rotating shaft 34 can rotate along with the action of the motor 35 through the engaging member 36, and then the stirring tank 2 is driven to rotate.

As an alternative embodiment, the engagement member 36 includes a first gear 361 on the output shaft of the motor 35 and a second gear 362 on the rotating shaft 34.

As an alternative, the filter plate 41 is arranged obliquely downwards on the side facing away from the agitator tank 2. At this time, in order to conveniently realize the separation of the extraction liquid, the middle part of the separation filter 4 is provided with a partition plate 44 protruding upwards, and one end of the filter plate 41 is fixedly connected with the partition plate 44.

Specifically, the filter plate 41 has a thickness-oriented structure, and holes for filtering out liquid are formed through the surface of the filter plate.

As an optional embodiment, the inner side wall of the stirring tank 2 is protruded towards the axial direction to form a plurality of stirring teeth 23, and in addition, in order to ensure the stirring efficiency, the stirring teeth 23 are uniformly arranged along the axial direction of the stirring tank 2.

The stirring teeth 23 can play a role in crushing hardened soil, so that the soil can be fully contacted with the extraction liquid, and the extraction efficiency of heavy metal substances is improved.

As an optional embodiment, a baffle 221 is disposed outside the discharge port 22, and a projection in a perpendicular direction of the baffle 221 can fall within a projection range in a perpendicular direction of the separation filter 4, that is, the material discharged through the discharge port 22 can be discharged into the separation filter 4 after flowing through the baffle 221.

Alternatively, the shutter 221 located outside the discharge port 22 can rotate relative to the discharge port 22 and close the discharge port 22.

The device is used as follows:

when the device is used, firstly, liquid extraction liquid and soil to be treated are injected into the stirring tank 2 through the feeding hole 21, then the motor 35 is started, the motor 35 can drive the first gear 361 to rotate, then the second gear 362 drives the rotating shaft 34 and the rotating gear 32 positioned on the rotating shaft 34 to synchronously rotate, in the process, the stirring tank 2 can rotate along with the rotating shaft under the action of the meshing teeth 31, and the extraction liquid and the soil are quickly and uniformly stirred under the action of the stirring teeth 23. After reacting for a certain time, opening the baffle 221 for shielding the discharge port 22, allowing the slurry after stirring and extraction to flow into the separation filter 4 from the discharge port 22, filtering and separating by the filter plate 41, and allowing the liquid to flow into the second storage area 43; starting high-pressure pump 5, liquid in the second storage area 43 can be discharged into agitator tank 2 through fluid-discharge tube 6 after the liquid is extracted through liquid-suction tube 7 under the effect of high-pressure pump 5, and the reaction lasts, and the soil of separation is further handled, and incessant work has improved the adsorption efficiency of extract greatly. Therefore, the use process of the heavy metal adsorption device in the whole heavy metal contaminated soil is realized.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. Heavy metal adsorption equipment in heavy metal contaminated soil, its characterized in that includes: the device comprises a base plate (1), a stirring tank (2), a driving device (3), a separation filter (4) and a high-pressure pump (5);

the stirring tank (2) is fixedly arranged on the base plate (1) through the driving device (3), the driving device (3) can drive the stirring tank (2) to rotate by taking the axis of the stirring tank as a shaft, a feeding hole (21) and a discharging hole (22) are respectively formed in two ends of the stirring tank (2) in the axis direction, a liquid discharge pipe (6) is arranged at the feeding hole (21), and the separation filter (4) is positioned below the discharging hole (22);

a filter plate (41) is arranged in the separation filter tank (4), the filter plate (41) can divide the separation filter tank (4) into a first storage area (42) for storing soil and a second storage area (43) for storing liquid, and a liquid pumping pipe (7) is arranged at the second storage area (43);

the high-pressure pump (5) is respectively communicated with the liquid extracting pipe (7) and the liquid discharging pipe (6), and the liquid in the second storage area (43) can be conveyed to the liquid discharging pipe (6) through the liquid extracting pipe (7) under the action of the high-pressure pump (5) and is discharged into the stirring tank (2) through the liquid discharging pipe (6);

the driving device (3) comprises meshing teeth (31) and a rotating gear (32) which are positioned on the outer peripheral side in the axial direction of the stirring tank (2), and when the rotating gear (32) rotates, the meshing teeth (31) in meshing connection with the rotating gear can rotate along with the rotating gear and drive the stirring tank (2) to rotate.

2. The device for adsorbing heavy metal in heavy metal contaminated soil according to claim 1, wherein the driving device (3) further comprises at least two bases (33), all the bases (33) are located below the stirring tank (2) and are sequentially arranged along the axial direction of the stirring tank (2);

any base (33) orientation one side of agitator tank (2) all is provided with through support column (331) is fixed rotating gear (32), all rotating gear (32) are through pivot (34) fixed connection and all the axis of rotating gear (32) all with the axis coincidence of pivot (34).

3. The device for adsorbing heavy metal in heavy metal contaminated soil according to claim 2, wherein the driving device (3) further comprises a motor (35), the motor (35) is fixedly arranged on the substrate (1) through a fixing seat, and the motor (35) is in transmission connection with the rotating shaft (34) through a meshing part (36).

4. The device for adsorbing heavy metal in heavy metal contaminated soil according to claim 3, wherein the engaging member (36) comprises a first gear (361) on the output shaft of the motor (35) and a second gear (362) on the rotating shaft (34).

5. The device for adsorbing heavy metal in heavy metal contaminated soil according to claim 1, wherein the side of the filter plate (41) away from the agitator tank (2) is disposed obliquely downward.

6. The device for adsorbing heavy metal in heavy metal contaminated soil according to claim 5, wherein the middle part of the separation filter (4) is protruded upwards to form a partition plate (44), and one end of the filter plate (41) is fixedly connected with the partition plate (44).

7. The device for adsorbing heavy metal in heavy metal contaminated soil according to claim 1, wherein the stirring tank (2) has a plurality of stirring teeth (23) formed on the inner side wall thereof and protruding towards the axial direction.

8. The device for adsorbing heavy metal in heavy metal contaminated soil according to claim 7, wherein the stirring teeth (23) are uniformly arranged along the axial direction of the stirring tank (2).

9. The heavy metal adsorption device in heavy metal contaminated soil according to claim 1, wherein a baffle (221) is arranged outside the discharge port (22), and a projection in a vertical direction of the baffle (221) can fall into a projection range in a vertical direction of the separation filter (4).