CN108031709B

CN108031709B - Administer soil heavy metal pollution device

Info

Publication number: CN108031709B
Application number: CN201810040377.8A
Authority: CN
Inventors: 徐颂; 方晓瑗; 陈晓娟
Original assignee: Foshan University
Current assignee: Foshan University
Priority date: 2018-01-16
Filing date: 2018-01-16
Publication date: 2020-04-28
Anticipated expiration: 2038-01-16
Also published as: CN108031709A

Abstract

The invention discloses a device for treating heavy metal pollution of soil, which comprises a bottom plate, wherein a treatment box is arranged on the upper side of the bottom plate, a crushing and mixing cavity is arranged on the upper side of the left end in the treatment box, a discharge pipe is arranged at the left end of the lower side of the crushing and mixing cavity, a sedimentation cavity is arranged at the lower side of the discharge pipe, a sludge pumping pipe is arranged at the lower end of the inner part of the sedimentation cavity, a first filter screen is arranged at the right end of the inner part of the sedimentation cavity, a U-shaped pipe is arranged at the right end of the first filter screen, an electrolysis cavity is arranged at the right end of the U-shaped pipe, an impurity extraction pipe is arranged at the lower end of the electrolysis cavity, an impurity storage cavity is arranged at the right side of the impurity extraction pipe, a liquid pumping pipe is arranged at the right end of. The invention can effectively treat the soil polluted by heavy metals, thus effectively removing heavy metal elements and ions, protecting the environment and preventing secondary pollution.

Description

Administer soil heavy metal pollution device

Technical Field

The invention relates to the field of environmental protection, in particular to a device for treating heavy metal pollution of soil.

Background

Environmental protection (environmental protection for short) is a general term for various actions taken by humans to solve real or potential environmental problems, coordinate the relationship between humans and the environment and guarantee the sustainable development of the economic society, at the level of individuals, organizations or governments, to protect the natural environment for the welfare of the nature and the humans. The method and means are engineering, administrative, legal, economic, propaganda and education and the like. The environmental protection is that human consciously protects natural resources and reasonably utilizes the natural resources, and prevents the natural environment from being polluted and damaged; the polluted and damaged environment is comprehensively treated to create an environment suitable for human life and work, and the relation between people and nature is coordinated, so that people can realize the concept of harmony with nature.

The heavy metal pollution of the soil refers to the condition that the content of trace harmful elements in the soil exceeds a background value and is over-high due to excessive deposition because of human activities, and the soil is generally called as heavy metal pollution. The heavy metals in the polluted soil mainly comprise elements with obvious biological toxicity, such As mercury (Hg), cadmium (Cd), lead (Pb), chromium (Cr), metalloid arsenic (As) and the like, and elements with certain toxicity, such As zinc (Zn), copper (Cu), nickel (Ni) and the like. Mainly comes from pesticides, waste water, sludge, atmospheric sedimentation and the like, if mercury mainly comes from mercury-containing waste water, cadmium and lead pollution mainly comes from smelting emission and automobile waste gas sedimentation, and arsenic is widely used as an insecticide, a bactericide, a rodenticide and a herbicide. Excessive heavy metal can cause physiological dysfunction and nutritional disorder of plants, the enrichment coefficient of elements such as cadmium, mercury and the like in crop seeds is higher, even if the enrichment coefficient exceeds the food sanitation standard, the growth, development and yield of crops are not influenced, and in addition, mercury and arsenic can weaken and inhibit the activities of nitrifying and ammonifying bacteria in soil and influence the nitrogen supply. The heavy metal pollutants have small mobility in soil, are not easy to leach with water, are not degraded by microorganisms, have great potential harm after entering a human body through a food chain, and are particularly careful to prevent the heavy metals from polluting the soil.

The existing heavy metal contaminated soil treatment methods include physical methods, chemical methods and microbial treatment methods, but the existing heavy metal contaminated soil equipment is generally complex enough, the working efficiency is low, heavy metal elements and ions cannot be quickly and effectively separated from the soil, and secondary pollution can be caused. Therefore, the technical personnel in the field provide a device for treating the heavy metal pollution of soil to solve the problems in the background technology.

Disclosure of Invention

The invention aims to provide a device for treating heavy metal pollution of soil, which aims to solve the problems in the background technology.

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

a device for treating soil heavy metal pollution comprises a bottom plate, wherein a damping pad is arranged inside the bottom plate, supporting seats are arranged at four corners of the lower side of the bottom plate, a treatment box is arranged on the upper side of the bottom plate, a box door is arranged on the front side of the treatment box, an electric control box is arranged on the front side of the right end of the box door, a crushing and mixing cavity is arranged on the upper side of the left end inside the treatment box, a charging opening is arranged on the upper side of the crushing and mixing cavity, a motor is arranged on the left side of the crushing and mixing cavity, a rotating shaft is arranged on the right side of the motor, crushing blades are arranged on the upper side and the lower side of the rotating shaft, a T-shaped stirring rod is arranged between the crushing blades, a discharge pipe is arranged at the left end of the lower side of the crushing and mixing cavity, a sedimentation cavity is arranged on the lower side of the discharge pipe, a sludge pumping, the device is characterized in that a plurality of sludge pumping openings are formed in the upper side of the sludge pumping pipe, a first filter screen is arranged at the right end of the inner part of the sedimentation cavity, a U-shaped pipe is arranged at the right end of the first filter screen, a first liquid pump is arranged on the U-shaped pipe, an electrolytic cavity is arranged at the right end of the U-shaped pipe, electrolytic equipment is arranged at the upper end of the inner part of the electrolytic cavity, an impurity pumping pipe is arranged at the lower end of the electrolytic cavity, an impurity pumping pump is arranged on the impurity pumping pipe, an impurity storage cavity is arranged on the right side of the impurity pumping pipe, a slag discharge pipe is arranged on the right side of the impurity storage cavity, a liquid pumping pipe is arranged at the right end of the electrolytic cavity, a second liquid pump is arranged on the liquid pumping pipe, a reaction cavity is arranged on the upper side of the liquid pumping pipe, a liquid feeding pipe is arranged on the upper, the water suction pipe is provided with a water suction pump, the right end inside the reaction cavity is provided with a second filter screen, the left end of the lower side of the second filter screen is provided with a connecting pipe, and the right side of the reaction cavity is provided with a water outlet pipe.

As a further scheme of the invention: and a friction pad is embedded at the lower end in the supporting seat.

As a further scheme of the invention: and a sealing plate is arranged on the upper side of the feed inlet.

As a further scheme of the invention: and a protective cover is arranged on the outer side of the motor.

As a further scheme of the invention: the discharging pipe is provided with a first electromagnetic valve.

As a further scheme of the invention: and a second electromagnetic valve is arranged on the liquid feeding pipe.

As a further scheme of the invention: the upper side head ends of the liquid storage cavity and the water storage cavity are provided with openings and sealing plugs.

As a further scheme of the invention: and a third electromagnetic valve is arranged on the connecting pipe.

As a still further scheme of the invention: and control valves are arranged on the upper sides of the water outlet pipe and the slag discharge pipe.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the collected heavy metal contaminated soil is added into the crushing and mixing cavity through the charging opening, then clear water is pumped into the crushing and mixing cavity through the water pump, and then the motor drives the rotating shaft to rotate, so that the crushing blade and the T-shaped stirring rod can drive water and soil to be stirred and mixed into a solution, and a mixed solution can be formed; then the solution enters the interior of the precipitation chamber through the discharge pipe for precipitation, and the precipitated sludge passes through the outside of the equipment pumped by the sludge pumping pump, so that heavy metal ions can be effectively separated from the soil, the treatment of the heavy metal ions can be facilitated, and the solution is pumped into the interior of the electrolysis chamber through the U-shaped pipe for electrolysis, so that the heavy metal ions can be effectively removed; the deposited impurities enter the impurity storage cavity through the impurity extraction pipe, then the solution is extracted into the reaction cavity, and then the discharged solution does not contain heavy metals by adding chemical agents, so that the heavy metals in the soil can be effectively removed, the heavy metals are completely treated, and the heavy metals are all stored in the impurity storage cavity, so that the secondary pollution of equipment can be effectively prevented; the vibration damping pad at the bottom can effectively reduce the vibration of the equipment, thereby effectively protecting the equipment and reducing the noise pollution of the equipment.

Drawings

FIG. 1 is a schematic structural diagram of a device for treating heavy metal pollution in soil.

FIG. 2 is a schematic structural diagram of a front view of a device for treating heavy metal pollution in soil.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should 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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1 and 2, in the embodiment of the invention, a device for treating heavy metal pollution of soil comprises a bottom plate 1, wherein a vibration damping pad 2 is arranged inside the bottom plate 1, so that vibration of equipment can be effectively reduced, the equipment can be effectively protected, and noise pollution of the equipment can be reduced, supporting seats 3 are arranged at four corners of the lower side of the bottom plate 1, friction pads are embedded at the lower ends of the inner parts of the supporting seats 3, so that friction force between the equipment and the ground can be effectively increased, so that stability of the equipment can be effectively ensured, a treatment box 4 is arranged on the upper side of the bottom plate 1, a box door 5 is arranged on the front side of the treatment box 4, so that overhaul and maintenance of the internal equipment can be facilitated, an electric control box 6 is arranged on the front side of the right end of the box door 5, and is connected with electric.

The treatment box is characterized in that a crushing and mixing cavity 7 is arranged on the upper side of the left end inside the treatment box 4, soil can be effectively crushed and mixed, so that heavy metal and soil can be conveniently separated, a feed opening 8 is arranged on the upper side of the crushing and mixing cavity 7, the feed opening 8 is arranged on the upper side of the treatment box 4, a sealing plate is arranged on the upper side of the feed opening 8, the sealing of equipment can be effectively guaranteed, a motor 9 is arranged on the left side of the crushing and mixing cavity 7, a protective cover is arranged on the outer side of the motor 9, the motor 9 can be effectively protected, a rotating shaft 10 is arranged on the right side of the motor 9, crushing blades 11 are arranged on the upper side and the lower side of the rotating shaft 10, soil can be effectively crushed, a T-shaped stirring rod 12 is arranged between the crushing blades 11, soil and water can be effectively stirred and mixed into, arrange and be equipped with first solenoid valve on the material pipe 13, it is equipped with sedimentation chamber 14 to arrange material pipe 13 downside, can make things convenient for the sediment of soil in the mixed solution effectively, can detach soil effectively like this, the inside lower extreme of sedimentation chamber 14 is equipped with takes out silt pipe 15, take out the left side that silt pipe 15 left end set up at treatment box 4, take out silt pipe 15 left end and be equipped with and take out silt pump 16, take out silt pipe 15 upside and be equipped with a plurality of and take out silt mouth 17, can make things convenient for the discharge of soil effectively.

The right end in the precipitation cavity 14 is provided with a first filter screen 18, the right end of the first filter screen 18 is provided with a U-shaped pipe 19, the U-shaped pipe 19 is provided with a first liquid pump 37 which can effectively facilitate the extraction of the solution, the right end of the U-shaped pipe 19 is provided with an electrolysis cavity 20, the upper end in the electrolysis cavity 20 is provided with an electrolysis device 21, the electrolysis device 21 is formed by combining a storage battery and an electrode bar, so that the water electrolysis can be effectively carried out on the solution, the heavy metal ions can be effectively removed, the heavy metal ions in the solution can be effectively removed, the lower end of the electrolysis cavity 20 is provided with an impurity extraction pipe 22, the impurity extraction pipe 22 is provided with an impurity extraction pump 23, the right side of the impurity extraction pipe 22 is provided with an impurity storage cavity 24, the precipitated impurities can be effectively and conveniently enter the impurity, the impurity storage cavity 24 right side is equipped with scum pipe 25, can conveniently handle heavy metal effectively, electrolysis chamber 20 right-hand member is equipped with liquid suction pipe 26, be equipped with second drawing liquid pump 27 on the liquid suction pipe 26, liquid suction pipe 26 upside is equipped with reaction chamber 28, reaction chamber 28 upside is equipped with liquid feeding pipe 29, be equipped with the second solenoid valve on the liquid feeding pipe 29, liquid feeding pipe 29 upside is equipped with stock solution chamber 30, can conveniently add chemical agent effectively, can ensure like this that heavy metal ion is whole to be handled and falls, stock solution chamber 30 left side is equipped with water storage chamber 31, stock solution chamber 30 and water storage chamber 31 upside head end are equipped with the opening and seal the stopper, water storage chamber 31 left end is equipped with drinking-water pipe 32, drinking-water pipe 32 left side is connected with broken hybrid chamber 7, be equipped with suction pump 33 on the drinking-water pipe 32, can conveniently add clear water to inside broken hybrid chamber 7, the inside right-hand member of reaction chamber 28 is equipped with second filter screen 34, second filter screen 34 downside left end is equipped with connecting pipe 35, be equipped with the third solenoid valve on the connecting pipe 35, reaction chamber 28 right side is equipped with outlet pipe 36, outlet pipe 36 and scum pipe 25 upside are equipped with the control valve.

According to the invention, collected heavy metal contaminated soil is added into the crushing and mixing cavity 7 through the feed inlet 8, clear water is pumped into the crushing and mixing cavity 7 through the water pump 33, the rotating shaft 10 is driven to rotate through the motor 9, the crushing blade 11 and the T-shaped stirring rod 12 are driven to stir and mix water and soil into a solution, the solution enters the precipitation cavity 14 through the discharge pipe 13 to be precipitated, the precipitated sludge passes through the outer part of the equipment pumped out by the sludge pump, the solution is pumped into the electrolysis cavity 20 through the U-shaped pipe 19 to be electrolyzed, heavy metal ions can be effectively removed, the precipitated impurities enter the impurity storage cavity 24 through the impurity pumping pipe 22, the solution is pumped into the reaction cavity 28, and the discharged solution is ensured not to contain heavy metals through adding chemical agents, thus, heavy metals in the soil can be effectively removed, and the heavy metals are all stored in the impurity storage chamber 24, so that secondary pollution of the equipment can be effectively prevented.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A device for treating soil heavy metal pollution comprises a bottom plate, and is characterized in that vibration damping pads are arranged inside the bottom plate, supporting seats are arranged at four corners of the lower side of the bottom plate, a treatment box is arranged on the upper side of the bottom plate, a box door is arranged on the front side of the treatment box, an electric control box is arranged on the front side of the right end of the box door, a crushing and mixing cavity is arranged on the upper side of the left end inside the treatment box, a charging opening is arranged on the upper side of the treatment box, a motor is arranged on the left side of the crushing and mixing cavity, a rotating shaft is arranged on the right side of the motor, crushing blades are arranged on the upper side and the lower side of the rotating shaft, a T-shaped stirring rod is arranged between the crushing blades, a discharging pipe is arranged at the left end of the lower side of the crushing and mixing cavity, a settling cavity is arranged on the lower, the left end of the sludge pumping pipe is provided with a sludge pumping pump, the upper side of the sludge pumping pipe is provided with a plurality of sludge pumping ports, the right end of the inner part of the sedimentation cavity is provided with a first filter screen, the right end of the first filter screen is provided with a U-shaped pipe, the U-shaped pipe is provided with a first liquid pumping pump, the right end of the U-shaped pipe is provided with an electrolytic cavity, the upper end of the inner part of the electrolytic cavity is provided with an electrolytic device, the lower end of the electrolytic cavity is provided with an impurity pumping pipe, the impurity pumping pipe is provided with an impurity pumping pump, the right side of the impurity pumping pipe is provided with an impurity storage cavity, the right side of the impurity storage cavity is provided with a slag discharge pipe, the right end of the electrolytic cavity is provided with a liquid pumping pipe, the liquid pumping pipe is provided with a second liquid pumping pump, the upper side of the liquid pumping pipe is provided with, the drinking-water pipe left side is connected with broken hybrid chamber, be equipped with the suction pump on the drinking-water pipe, the inside right-hand member of reaction chamber is equipped with the second filter screen, second filter screen downside left end is equipped with the connecting pipe, the reaction chamber right side is equipped with the outlet pipe.

2. The device for treating heavy metal pollution in soil according to claim 1, wherein a friction pad is embedded at the lower end inside the supporting seat.

3. The device for treating heavy metal pollution of soil according to claim 1, wherein a sealing plate is arranged on the upper side of the charging opening.

4. The device for treating heavy metal pollution of soil according to claim 1, wherein a protective cover is arranged outside the motor.

5. The device for treating heavy metal pollution of soil according to claim 1, wherein said discharge pipe is provided with a first solenoid valve.

6. The device for treating heavy metal pollution of soil according to claim 1, wherein a second electromagnetic valve is arranged on the liquid feeding pipe.

7. The device for treating heavy metal pollution of soil according to claim 1, wherein the upper ends of the liquid storage cavity and the water storage cavity are provided with an opening and a sealing plug.

8. The device for treating heavy metal pollution of soil according to claim 1, wherein a third electromagnetic valve is arranged on the connecting pipe.

9. The device for treating heavy metal pollution of soil according to claim 1, wherein the upper sides of the water outlet pipe and the slag discharge pipe are provided with control valves.