阅读说明：本技术 土壤重金属迁移实验模拟装置 (Soil heavy metal migration experiment simulation device ) 是由 孙忠伟 任雪梅 牛杏杏 张传琦 方鑫 孙协龙 明桂林 林飞 李志松 秦月琴 任飞 于 2019-11-11 设计创作，主要内容包括：本发明公开了一种土壤重金属迁移实验模拟装置,涉及环境工程技术领域。本发明包括水箱,水箱内固定有一托盘,托盘上安装有一托盒；托盒的底侧面设有若干通孔并于通孔处设有第一支撑管,托盒的底侧面设有若干垫块,垫块上设有若干支撑杆,若干支撑杆的顶部连接有一第二支撑管；第一支撑管内配合设有取样管,第二支撑管内配合设有取样器；位于通孔正下方的托盘上表面设有与取样管配合安装的定位机构。本发明对重金属在土壤、水中的迁移进行模拟实验,缩短了试验周期,能实现对环境中重金属迁移与转化过程的实时、高效和监测。(The invention discloses a soil heavy metal migration experiment simulation device, and relates to the technical field of environmental engineering. The invention comprises a water tank, wherein a tray is fixed in the water tank, and a tray box is arranged on the tray; the bottom side surface of the support box is provided with a plurality of through holes, the through holes are provided with first supporting tubes, the bottom side surface of the support box is provided with a plurality of cushion blocks, the cushion blocks are provided with a plurality of supporting rods, and the tops of the plurality of supporting rods are connected with second supporting tubes; the first supporting tube is internally provided with a sampling tube in a matching way, and the second supporting tube is internally provided with a sampler in a matching way; and a positioning mechanism which is matched with the sampling tube is arranged on the upper surface of the tray under the through hole. The invention carries out simulation experiment on the migration of heavy metal in soil and water, shortens the test period and can realize real-time, high-efficiency and monitoring of the migration and conversion process of heavy metal in the environment.)

1. Soil heavy metal migration experiment analogue means, including water tank (1), its characterized in that: a tray (12) is fixed in the water tank (1), and a tray box (2) is installed on the tray (12);

the bottom side surface of the support box (2) is provided with a plurality of through holes, the through holes are provided with first support pipes (23), the bottom side surface of the support box (2) is provided with a plurality of cushion blocks (24), the cushion blocks (24) are provided with a plurality of support rods (25), and the tops of the support rods (25) are connected with second support pipes (26);

a sampling pipe (3) is arranged in the first supporting pipe (23) in a matching way, and a sampler (4) is arranged in the second supporting pipe (26) in a matching way;

and a positioning mechanism which is matched with the sampling tube (3) is arranged on the upper surface of the tray (12) under the through hole.

2. The soil heavy metal migration experiment simulation device of claim 1, wherein the tray (12) is provided with a supporting block (16) on the inner side wall thereof for supporting the supporting box (2), and the supporting box (2) is provided with a lapping part (21) on the outer side thereof for matching with the supporting block (16).

3. A soil heavy metal migration experiment simulation device according to claim 1, characterized in that, the bottom of the water tank (1) is provided with a plurality of supporting members (11) for supporting a tray (12).

4. A soil heavy metal migration experiment simulation device according to claim 3, characterized in that, the support (11) is a spring.

5. The soil heavy metal migration experiment simulation device of claim 1, wherein the sampling tube (3) comprises a tube body (31), a positioning hole (32) is formed at the bottom of the tube body (31), the top end of the tube body (31) is connected with a base plate (35) through a plurality of connecting rods (34), and a first handle (36) is arranged on the base plate (35); the peripheral side wall of the tube body (31) is provided with a plurality of through holes (33).

6. A soil heavy metal migration experiment simulation device according to claim 5, wherein the positioning mechanism comprises a positioning column (14) which is arranged on the tray (12) and matched with the positioning hole (32), and a plurality of clamping plates (15) which are used for clamping the pipe body (31) are annularly distributed on the periphery of the positioning column (14).

7. A soil heavy metal migration experiment simulation device according to claim 6, characterized in that, the splint (15) comprises a rigid portion (151), an elastic deformation portion (152) is connected to the top of the rigid portion (151), a guide portion (153) is connected to the top of the elastic deformation portion (152), and an arc-shaped surface (154) is arranged on one side of the guide portion (153).

8. The soil heavy metal migration experiment simulation device of claim 1, wherein the sampler (4) comprises a sampling box (41), an operating rod (42) is fixed at the center of the sampling box (41), and a second handle (43) is arranged at the top of the operating rod (42).

9. A soil heavy metal migration experiment simulation device according to claim 1, characterized in that, the bottom side of the tray (12) is provided with a plurality of first water filtering holes (13).

10. The soil heavy metal migration experiment simulation device of claim 1, wherein the bottom side of the support box (2) is provided with a plurality of second water filtering holes (22).

Technical Field

The invention belongs to the technical field of environmental engineering, and particularly relates to a soil heavy metal migration experiment simulation device.

Background

The investigation result shows that: in the soil pollution of China, heavy metal pollution occupies a considerable proportion, and the pollution is serious, so that the heavy metal pollution is in urgent need of treatment. Therefore, the importance of the migration and transformation process of heavy metal ions in the soil for the treatment of the polluted soil is self-evident.

Through the migration conversion process of field test research heavy metal in soil, not only the operation degree of difficulty is big, the expense is consumed much, and test period overlength, can't satisfy the exigency of present stage to polluting soil improvement at all, traditional soil heavy metal ion migration conversion experimental apparatus is equipped with the hole of free seepage in the earth pillar below, soil water saturation back, pour into heavy metal solution in the earth pillar, begin seepage downwards, the infiltration relies on the gravitational potential of soil water completely, the progress is very slow, the test precision is poor, and the heavy metal relies on the gravitational potential to migrate downwards completely, there is very big heterogeneity, the experimental result is inaccurate.

Disclosure of Invention

The invention aims to provide a soil heavy metal migration experiment simulation device to solve the problems in the background art.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a soil heavy metal migration experiment simulation device which comprises a water tank, wherein a tray is fixed in the water tank, and a tray box is installed on the tray; the bottom side surface of the support box is provided with a plurality of through holes, the through holes are provided with first supporting tubes, the bottom side surface of the support box is provided with a plurality of cushion blocks, the cushion blocks are provided with a plurality of supporting rods, and the tops of the supporting rods are connected with second supporting tubes; a sampling pipe is arranged in the first supporting pipe in a matching way, and a sampler is arranged in the second supporting pipe in a matching way; and a positioning mechanism which is matched with the sampling tube for installation is arranged on the upper surface of the tray right below the through hole.

Furthermore, the inner side wall of the tray is provided with a supporting block for supporting the supporting box, and the outer side of the supporting box is provided with a lap joint part matched with the supporting block.

Furthermore, the bottom of the water tank is provided with a plurality of supporting pieces for supporting the tray.

Further, the support is a spring.

Furthermore, the sampling tube comprises a tube body, a positioning hole is formed in the bottom of the tube body, the top end of the tube body is connected with a substrate through a plurality of connecting rods, and a first handle is arranged on the substrate; the peripheral side wall of the pipe body is provided with a plurality of through holes.

Furthermore, the positioning mechanism comprises a positioning column which is arranged on the tray and matched with the positioning hole, and a plurality of clamping plates used for clamping the pipe body are distributed on the periphery of the positioning column along the annular shape.

Further, the splint include rigidity portion, the top of rigidity portion is connected with an elastic deformation portion, the top of elastic deformation portion is connected with a guide part, one side of guide part is equipped with the arcwall face.

Furthermore, the sampler comprises a sampling box, an operating rod is fixed at the center of the sampling box, and a second handle is arranged at the top of the operating rod.

Furthermore, a plurality of first water filtering holes are formed in the bottom side face of the tray.

Furthermore, a plurality of second water filtering holes are formed in the bottom side face of the support box.

The invention has the following beneficial effects:

the invention realizes the simulation experiment of the migration of heavy metals in soil and water, and shortens the test period; meanwhile, the invention has simple structure and convenient operation, and can realize real-time, high-efficiency and monitoring of the heavy metal migration and conversion process in the environment.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

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

FIG. 1 is a schematic diagram of a simulation apparatus according to the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 4 is a cross-sectional view taken at C-C of FIG. 2;

FIG. 5 is a top view of the water tank and tray assembly of the present invention;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;

FIG. 7 is a schematic view of the structure of the tray of the present invention;

FIG. 8 is a schematic view of a sampling tube according to the present invention;

FIG. 9 is a schematic diagram of a sampler according to the present invention;

fig. 10 is a schematic view of the splint structure of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

Referring to fig. 1-10, the present invention relates to a soil heavy metal migration experiment simulation device, which comprises a water tank 1, wherein a tray 12 is fixed in the water tank 1, and a tray box 2 is installed on the tray 12; the bottom side surface of the support box 2 is provided with a plurality of through holes, the through holes are provided with first supporting tubes 23, the bottom side surface of the support box 2 is provided with a plurality of cushion blocks 24, the cushion blocks 24 are provided with a plurality of supporting rods 25, and the tops of the plurality of supporting rods 25 are connected with second supporting tubes 26; the sampling tube 3 is arranged in the first supporting tube 23 in a matching way, and the sampler 4 is arranged in the second supporting tube 26 in a matching way; the upper surface of the tray 12 which is positioned right below the through hole is provided with a positioning mechanism which is matched and arranged with the sampling tube 3.

Preferably, the inner side wall of the tray 12 is provided with a supporting block 16 for supporting the tray 2, and the outer side of the tray 2 is provided with a lap joint part 21 matched with the supporting block 16.

Preferably, the bottom of the water tank 1 is provided with a plurality of supports 11 for supporting the tray 12.

Preferably, the support 11 is a spring.

Referring to fig. 8, the sampling tube 3 includes a tube 31, a positioning hole 32 is formed at the bottom of the tube 31, the top end of the tube 31 is connected to a substrate 35 through a plurality of connecting rods 34, and a first handle 36 is disposed on the substrate 35; the peripheral wall of the tube 31 is provided with a plurality of through holes 33.

Referring to fig. 5, the positioning mechanism includes a positioning post 14 disposed on the tray 12 and matching with the positioning hole 32, and a plurality of clamping plates 15 for clamping the tube 31 are annularly distributed along the peripheral edge of the positioning post 14, so that the sampling tube 3 can be installed in advance through the positioning mechanism, and the sampling tube 3 is tilted after being installed through the clamping plates 15.

Referring to fig. 10, the clamp plate 15 includes a rigid portion 151, an elastic deformation portion 152 is connected to a top of the rigid portion 151, a guide portion 153 is connected to a top of the elastic deformation portion 152, and an arc-shaped surface 154 is disposed on one side of the guide portion 153, so that the sampling tube 3 can be conveniently installed in and taken out of the positioning mechanism by the deformation of the elastic deformation portion 152 and the guide of the guide portion 153.

Referring to fig. 9, the sampler 4 includes a sampling box 41, a lever 42 is fixed at the center of the sampling box 41, and a second handle 43 is provided at the top of the lever 42.

Preferably, the bottom side of the tray 12 is provided with a plurality of first water filtering holes 13.

Preferably, the bottom side of the holding box 2 is provided with a plurality of second water filtering holes 22.

When the sampling device is used, clear water is injected into the water tank 1 until the clear water submerges on the upper surface of the tray 12, and the sampling tube 3 is installed on the upper surface of the tray 12 through the positioning mechanism; then, laying clean fine sand with enough thickness on the tray 12 until the surface of the fine sand is accumulated to the middle position of the supporting block 16, and simultaneously laying clean fine sand with the same thickness on the sampling tube 3; then, injecting clear water until the clear water submerges on the surface of the fine sand;

mounting the support box 2 on the tray 12, supporting the support box 2 through the matching of the supporting block 16 and the lapping part 21, and adjusting the sampling tube 3 to penetrate through the first supporting tube 23;

secondly, a sampler 4 is installed in a second supporting tube 26 on the supporting box 2 in a matching mode, the contaminated fine sand which is soaked by the heavy metal solution and dried is paved on the supporting box 2 until the surface submerges the top of the supporting rod 25, and then clear water is injected into the surface of the contaminated fine sand until the clear water submerges the surface of the non-contaminated fine sand and the surface is lower than the top of the second supporting tube 26;

sampling can be carried out after a certain time according to the requirements, the sampling tube 3 is respectively drawn out from the first supporting tube 23, the sampler 4 is drawn out from the second supporting tube 26, and simultaneously the water above the polluted fine sand and the water below the tray 12 are drawn out through the injector;

and the taken sample is detected, and the heavy metal migration condition can be known according to the detection.

Wherein the second support tube 26 and the first support tube 23 have the same height at the top.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.