CN210907374U - Leaching device of cobble in heavy metal contaminated soil - Google Patents
Leaching device of cobble in heavy metal contaminated soil Download PDFInfo
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- CN210907374U CN210907374U CN201921683866.1U CN201921683866U CN210907374U CN 210907374 U CN210907374 U CN 210907374U CN 201921683866 U CN201921683866 U CN 201921683866U CN 210907374 U CN210907374 U CN 210907374U
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Abstract
The utility model discloses a drip washing device of cobble in heavy metal contaminated soil, include: the system comprises a storage bin system, a material leaching and conveying system, a spraying system, a sewage collecting and treating system and a pebble stacking system; the bin system, the material leaching and conveying system and the pebble stacking system are sequentially connected, and the material leaching and conveying system comprises a conveying belt with a mesh structure; the spraying system comprises a medicament spraying tank, the medicament spraying tank is positioned above the conveyor belt and is used for spraying repairing medicaments on pebbles on the conveyor belt; the sewage collecting and treating system comprises a sewage tank and a sewage treatment system, wherein the sewage tank is positioned below the conveyor belt and used for receiving sewage of the repairing agent for treating pebbles and sending the sewage into the sewage treatment system for treatment. The utility model discloses a drip washing device is suitable for to large granule materials such as cobble in the soil, has advantages such as repair effect is good, the working procedure is simple, easy operation and reduced water consumption and transportation number of times, has reduced the secondary pollution to all ring edge borders.
Description
Technical Field
The utility model relates to an environmental engineering soil remediation technical field, concretely relates to drip washing device of cobble in heavy metal contaminated soil.
Background
Soil is an important resource for natural environments and agricultural production on which humans depend for survival. With the aggravation of industrial and urban pollution and the increase of the types and the amounts of agricultural chemicals, the heavy metal pollution of the soil is increasingly serious. Harmful heavy metals in soil are called 'chemical timing bombs', and are accumulated to a certain degree, so that not only can soil degradation be caused, and the crop yield and quality are reduced, but also surface water and underground water can be polluted through runoff and loss, the hydrological environment is deteriorated, and the harmful heavy metals can be directly poisoned by plants or harm human health through a food chain way. The heavy metal pollution of the soil refers to the phenomenon that the content of heavy metal in the soil is obviously higher than the natural background content of the soil due to the fact that the heavy metal is added into the soil through artificial activities, and ecological damage and environmental quality deterioration are caused. Soil heavy metal contamination and the consequences thereof have become a significant global concern.
Because the geological conditions of the polluted site are different, a large amount of large granular substances can be generated in the excavation treatment process of the polluted site under the condition, the existing treatment method for the large amount of large granular substances mainly adopts a washing mode, the washing mode needs to meet the requirements of the cooperation of machines such as an excavator and the like, the area of the treated site is large, the water supply is sufficient, the water after washing cannot be collected in a centralized manner, and harmlessness cannot be realized.
SUMMERY OF THE UTILITY MODEL
To the weak point that exists in the above-mentioned problem, the utility model provides a leaching device of cobble in heavy metal contaminated soil.
The utility model discloses a drip washing device of cobble in heavy metal contaminated soil, include: the system comprises a storage bin system, a material leaching and conveying system, a spraying system, a sewage collecting and treating system and a pebble stacking system;
the material bin system, the material leaching and conveying system and the pebble stacking system are sequentially connected according to the moving direction of pebbles, and the material leaching and conveying system comprises a conveying belt with a mesh structure;
the spraying system comprises a medicament spraying tank, and the medicament spraying tank is positioned above the conveyor belt and is used for spraying repairing medicaments on pebbles on the conveyor belt;
the sewage collecting and treating system comprises a sewage tank and a sewage treatment system, wherein the sewage tank is positioned below the conveyor belt and used for receiving sewage of the repairing agent for treating pebbles and sending the sewage into the sewage treatment system for treatment.
As a further improvement of the utility model, the pebbles comprise large granular substances with the size of 60-200mm in the polluted soil.
As a further improvement of the utility model, the stock bin system comprises a feed hopper and a belt feeder;
the feed end setting of belt feeder is in the discharge gate below of feeder hopper, discharge end with the feed inlet of conveyer belt links to each other.
As a further improvement of the utility model, the diameter of the feed hopper is not less than 2m, the length of the belt feeder is not less than 5m, the width is not less than 0.5 m.
As a further improvement of the utility model, the length of the conveyor belt is not less than 8m, the width is not less than 0.5m, and the transmission capacity is not more than 3000 p/h.
As a further improvement of the utility model, a heavy metal repairing medicament tank and a clean water tank are installed at the top of the medicament spraying tank, and both the heavy metal repairing medicament tank and the clean water tank are connected with the medicament spraying tank, so that the heavy metal repairing medicament and the clean water are mixed in the medicament spraying tank;
and the bottom of the agent spraying tank is provided with a spraying port for spraying the mixed repairing agent on the pebbles on the conveying belt.
As a further improvement, the heavy metal repairing agent tank and the clean water tank are provided with valves for controlling the flow, and the agent spraying tank is internally provided with a stirrer.
As a further improvement of the utility model, the sewage treatment system comprises a pH adjusting tank and water treatment equipment;
the pH adjusting tank is connected with an outlet of the sewage tank, and the water treatment equipment is connected with the pH adjusting tank.
As a further improvement of the utility model, the water treatment equipment is flocculation and precipitation equipment.
As a further improvement of the utility model, the pebble piling system comprises a concrete anti-seepage structure and drainage ditches arranged around the concrete anti-seepage structure; the pebble stacking system is arranged below the discharge hole of the conveyor belt.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses utilize feed bin system, material drip washing transmission system, spraying system, sewage to collect and handle system, cobble stacking system and constitute the drip washing device jointly, make cobble drip washing process programming, improved the drip washing speed and the whole restoration effect of large granule materials such as cobble, reduced the influence to the environment, reduced the place and utilized and the water consumption.
Drawings
Fig. 1 is a schematic structural diagram of a leaching device for pebbles in heavy metal contaminated soil, which is disclosed in an embodiment of the present invention.
In the figure:
1. a feed hopper; 2. a belt feeder; 3. a conveyor belt; 4. a medicament spray tank; 5. a heavy metal remediation agent tank; 6. a clean water tank; 7. a sewage tank; 8. a pH adjusting tank; 9. a water treatment device; 10. and a pebble stacking area.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" 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; 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 in specific cases to those skilled in the art.
The invention is described in further detail below with reference to the accompanying drawings:
as shown in fig. 1, the utility model provides a leaching device of cobble in heavy metal contaminated soil, include: the system comprises a storage bin system, a material leaching and conveying system, a spraying system, a sewage collecting and treating system and a pebble stacking system; wherein:
the utility model discloses a feed bin system, material drip washing transmission system and cobble stacking system link to each other according to the cobble direction of motion order, and material drip washing transmission system includes conveyer belt 3 with mesh structure; the spraying system is positioned above the conveyor belt 3 and is used for spraying, cleaning and repairing pebbles on the conveyor belt; the sewage collecting and treating system is positioned below the conveyor belt 3 and used for receiving the sewage after cleaning and repairing and treating the sewage.
Specifically, the method comprises the following steps:
the pebbles of the utility model mainly comprise large granular substances with the particle size of 60-200mm in the polluted soil;
the utility model discloses a feed bin system includes feeder hopper 1 and belt feeder 2, and the feed end setting of belt feeder 2 links to each other at the feed inlet of discharge gate below, discharge end and conveyer belt 3 of feeder hopper 1. Further, the diameter of the feed hopper 1 is not less than 2m, the length of the belt feeder 2 is not less than 5m, and the width is not less than 0.5 m.
The utility model discloses a material leaching and conveying system, which comprises a conveyor belt 3, wherein the conveyor belt 3 is of a plurality of mesh structures; porous partition plates are arranged at two ends of a conveyor belt 3, and the conveyor belt 3 is connected with a belt feeder 2 and is arranged behind the belt feeder 2. Further, the length of the conveyor belt is not less than 8m, the width of the conveyor belt is not less than 0.5m, and the transmission capacity of the conveyor belt is not more than 3000 p/h.
The utility model discloses a spraying system includes medicament spray tank 4, heavy metal restoration medicament jar 5 and clear water jar 6, and medicament spray tank 4 is located the top of conveyer belt 3, and heavy metal restoration medicament jar 5 and clear water jar 6 are installed to the top of medicament spray tank 4, and heavy metal restoration medicament jar 5 and clear water jar 6 all link to each other with medicament spray tank 4, make heavy metal restoration medicament and clear water mix in medicament spray tank 4; the bottom of the agent spraying tank 4 is provided with a spraying port for spraying the mixed repairing agent on the pebbles on the conveyor belt 3. Further, the infusion pipelines of the heavy metal restoration agent tank 5 and the clean water tank 6 are respectively provided with a valve for controlling the flow, and the agent spraying tank 4 is internally provided with a stirrer for stirring and mixing the heavy metal restoration agent and the clean water. Further, the heavy metal remediation agents are HCL and EDTA chelating agents.
The sewage collecting and disposing system of the utility model comprises a sewage tank 7, a pH adjusting tank 8 and a water treatment device 9, wherein the sewage tank 7 is positioned below the conveyor belt 3 and is used for receiving sewage of repairing medicament for treating pebbles; a sewage outlet is arranged on the sewage tank 7, the pH adjusting tank 8 is connected with the outlet of the sewage tank 7, and the water treatment equipment 9 is connected with the pH adjusting tank 8. Further, the water treatment equipment 9 is flocculation precipitation equipment, and heavy metal pollutants in water are treated by adopting a flocculation precipitation process. Further, the sewage treatment flocculant of the water treatment equipment 9 is PAC, PAM, heavy metal scavenger.
The pebble stacking system comprises a pebble stacking area 10, wherein the pebble stacking area 10 comprises a concrete anti-seepage structure and drainage ditches arranged around the concrete anti-seepage structure; the pebble piling zone 10 is arranged below the discharge port of the conveyor belt.
The utility model discloses during the use:
pebbles fall to the feeding end of a belt feeder 2 through a feed hopper 1, the pebbles are conveyed into a conveyor belt 3 through the belt feeder 2, the conveyor belt 3 sprays heavy metal eluting agents to the pebbles through a spraying system above the conveyor belt 3, and the eluting agents are mixed with the pebbles through the spraying system to achieve the eluting effect; and the washed pebbles enter a pebble stacking and maintaining system. The sewage after being washed enters a sewage collecting and disposing system, the sewage enters a pH adjusting tank 8 for pH adjustment and then enters a water treatment device 9, the main process flow of the water treatment device 9 is flocculation precipitation, and a better effect of heavy metal treatment can be achieved.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a leaching device of cobble in heavy metal contaminated soil which characterized in that includes: the system comprises a storage bin system, a material leaching and conveying system, a spraying system, a sewage collecting and treating system and a pebble stacking system;
the material bin system, the material leaching and conveying system and the pebble stacking system are sequentially connected according to the moving direction of pebbles, and the material leaching and conveying system comprises a conveying belt with a mesh structure;
the spraying system comprises a medicament spraying tank, and the medicament spraying tank is positioned above the conveyor belt and is used for spraying repairing medicaments on pebbles on the conveyor belt;
the sewage collecting and treating system comprises a sewage tank and a sewage treatment system, wherein the sewage tank is positioned below the conveyor belt and used for receiving sewage of the repairing agent for treating pebbles and sending the sewage into the sewage treatment system for treatment.
2. The washing apparatus as claimed in claim 1, wherein the pebbles comprise large granular material of 60-200mm in contaminated soil.
3. The washing apparatus as claimed in claim 1, in which the bin system includes a feed hopper and a belt feeder;
the feed end setting of belt feeder is in the discharge gate below of feeder hopper, discharge end with the feed inlet of conveyer belt links to each other.
4. The washing apparatus as claimed in claim 3, wherein the feed hopper has a diameter of not less than 2m, and the belt feeder has a length of not less than 5m and a width of not less than 0.5 m.
5. The washing apparatus as claimed in claim 1, wherein the conveyor belt has a length of not less than 8m, a width of not less than 0.5m and a transport capacity of not more than 3000 p/h.
6. The elution apparatus as claimed in claim 1, wherein the top of the reagent spray tank is installed with a heavy metal remediation reagent tank and a clean water tank, both of which are connected to the reagent spray tank, so that the heavy metal remediation reagent and the clean water are mixed in the reagent spray tank;
and the bottom of the agent spraying tank is provided with a spraying port for spraying the mixed repairing agent on the pebbles on the conveying belt.
7. The washing apparatus as claimed in claim 6, wherein valves for controlling the flow rate are provided on the liquid delivery pipes of the heavy metal remediation agent tank and the clean water tank, and an agitator is provided in the agent spraying tank.
8. The leaching apparatus according to claim 1, wherein the wastewater treatment system includes a pH adjustment tank and a water treatment facility;
the pH adjusting tank is connected with an outlet of the sewage tank, and the water treatment equipment is connected with the pH adjusting tank.
9. The washing apparatus as claimed in claim 8, wherein the water treatment apparatus is a flocculation and sedimentation apparatus.
10. The washing apparatus as claimed in claim 1, wherein the pebble piling system includes a concrete impermeable structure and drainage ditches arranged around the concrete impermeable structure; the pebble stacking system is arranged below the discharge hole of the conveyor belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921683866.1U CN210907374U (en) | 2019-10-10 | 2019-10-10 | Leaching device of cobble in heavy metal contaminated soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921683866.1U CN210907374U (en) | 2019-10-10 | 2019-10-10 | Leaching device of cobble in heavy metal contaminated soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210907374U true CN210907374U (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921683866.1U Active CN210907374U (en) | 2019-10-10 | 2019-10-10 | Leaching device of cobble in heavy metal contaminated soil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115318817A (en) * | 2022-05-16 | 2022-11-11 | 生态环境部环境规划院 | Spraying device applied to heavy metal contaminated soil in contaminated site |
-
2019
- 2019-10-10 CN CN201921683866.1U patent/CN210907374U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115318817A (en) * | 2022-05-16 | 2022-11-11 | 生态环境部环境规划院 | Spraying device applied to heavy metal contaminated soil in contaminated site |
| CN115318817B (en) * | 2022-05-16 | 2023-07-14 | 生态环境部环境规划院 | Be applied to spray set who pollutes place heavy metal contaminated soil |
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