CN211304216U - Modularized mobile soil leaching system - Google Patents
Modularized mobile soil leaching system Download PDFInfo
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- CN211304216U CN211304216U CN201922079343.2U CN201922079343U CN211304216U CN 211304216 U CN211304216 U CN 211304216U CN 201922079343 U CN201922079343 U CN 201922079343U CN 211304216 U CN211304216 U CN 211304216U
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Abstract
The utility model relates to a portable soil drip washing system of modularization includes: a soil input device for receiving the contaminated soil and discharging the contaminated soil while vibrating; a vibration feed port for receiving the contaminated soil discharged from the soil input device and quantitatively discharging the contaminated soil by controlling a vibration speed; a conveyor belt receiving and conveying the contaminated soil quantitatively discharged from the vibration feed port; a particle size screening machine provided with a screening net for screening the contaminated soil transferred from the transfer belt into soil having a particle size of a predetermined particle size or less and contaminated soil having a particle size of a predetermined particle size or more; a high-pressure leaching device which leaches the contaminated soil with the granularity below the specified granularity received from the granularity screening machine at high pressure, separates the contaminated soil into the restored soil and the pollutant and discharges the soil and the pollutant; and a screening device which receives the remediated soil and the contaminants discharged from the high pressure leaching device, and discharges the remediated soil with a predetermined particle size or more and the wastewater with a predetermined particle size or less based on the predetermined particle size.
Description
Technical Field
The utility model relates to a pollute soil restoration technical field, in particular to portable soil drip washing system of modularization.
Background
In the soil field restoration project, pollutants such as polycyclic aromatic hydrocarbon, dioxin, pesticide, heavy metal and the like cannot be directly leached by clear water, so that a chemical extraction method is used, but equipment is very complex when the chemical extraction method is used.
In the soil site remediation engineering, the soil leaching method is the mainstream technology for treating the heavy metal or the heavy metal and organic pollution composite polluted site.
The soil leaching technique is a technique of separating heavily contaminated soil components or transferring contaminants from a soil phase to a liquid phase by means of physical separation or leaching by adding water or a suitable leaching solution. Compared with other remediation modes, the ectopic soil leaching process has the advantages of good effect, wide application range, relatively low cost, easiness in implementation and the like, and is widely concerned in recent years. And after leaching, carrying out solid-liquid separation on the mixed solution, discharging or recycling the supernatant, and backfilling after sludge dehydration. At present, the commonly used heterotopic soil leaching solid-liquid separation process comprises an in-tank standing method, a filtration type solid-liquid separation method, a centrifugal type solid-liquid separation method and the like.
However, the current general soil leaching remediation scheme has the disadvantages of poor removal effect, long remediation time and the like for heavy metal pollutants with strong adhesive force, the remediation time needs to be prolonged in order to improve the heavy metal pollutants, and for pollutants with strong adhesive force, the removal effect cannot be achieved even if the remediation time is prolonged.
In addition, the general soil washing method is affected by the kind of heavy metals, the concentration of pollution, and the size of soil particles.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a in view of as above the application scope of current soil washing technique narrow, get rid of the effect poor, shortcoming such as repair time is long and propose, its aim at provides an application scope wide, get rid of effectually, the portable soil washing system of modularization that repair efficiency is high and miniaturized.
The utility model discloses a portable soil drip washing system of modularization includes: a soil input device for receiving the contaminated soil and discharging the contaminated soil while vibrating; a vibration feed port for receiving the contaminated soil discharged from the soil input device and quantitatively discharging the contaminated soil by controlling a vibration speed; a conveyor belt receiving and conveying the contaminated soil quantitatively discharged from the vibration feed port; a particle size screening machine provided with a screening net for screening the contaminated soil transferred from the conveyor belt into soil having a particle size of a predetermined particle size or less and contaminated soil having a particle size of a predetermined particle size or more; a high-pressure washing device for washing the contaminated soil with a particle size below a predetermined particle size received from the particle size screening machine at a high pressure, separating the contaminated soil into a remediated soil and a contaminant, and discharging the remediated soil and the contaminant; and a screening device which receives the remediated soil and the contaminants discharged from the high pressure leaching device, and discharges the remediated soil having a predetermined particle size or more and the wastewater having a predetermined particle size or less based on the predetermined particle size.
The utility model discloses a portable soil drip washing system of modularization still includes the rotary drum washing machine, and this rotary drum washing machine is established the conveyer belt with between the particle size screening machine, follow the conveyer belt is received and is polluted soil and carry out the clear water to polluting soil and wash.
The high-pressure leaching device comprises: a primary mixing chamber which is provided with a throwing inlet for throwing the polluted soil and water and a high-pressure leaching water inlet for high-pressure leaching water to enter; a high-speed mixing chamber located on a downstream side of the primary mixing chamber and having a reduced diameter relative to the primary mixing chamber; and an expansion collision chamber located on a downstream side of the high-speed mixing chamber and having a diameter that becomes larger with respect to the high-speed mixing chamber.
The soil input device may be a vibrating funnel.
According to the utility model discloses a portable soil washing system of modularization can adopt the physics nature particle diameter to cut apart the harmful substance that the solubility is low, does not consider initial stage concentration or content, to the harmful substance that the solubility is high utilize high pressure leaching water to extract harmful substance from soil and purify can, therefore application scope is wide.
Further, since the high-pressure leaching method using the high-speed fluid technology separates and removes harmful substances from soil, a high-efficiency remediation effect can be expected.
In addition, because the physical leaching method only uses water without using a chemical solvent, the method does not generate 2 times of pollution due to the chemical solvent, does not need more water to dilute sewage, has low by-products, has small equipment volume, is easy to install, dismantle and carry, and has the minimum influence on the surrounding environment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 shows a schematic diagram of the modular mobile soil washing system according to an embodiment of the present invention.
Fig. 2 shows a schematic structural view of the high-pressure washing device of the modular mobile soil washing system of the present invention.
Fig. 3 shows a schematic diagram of the modular mobile soil washing system according to another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the 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 work belong to the protection scope of the present invention.
Referring to fig. 1 and 2, the embodiment of the utility model provides a portable soil washing system of modularization includes: a soil input device 10 for receiving contaminated soil and discharging the contaminated soil while vibrating; a vibration inlet 20 for receiving the contaminated soil discharged from the soil input device 10 and quantitatively discharging the contaminated soil by controlling a vibration speed; a conveyor belt 40 receiving and conveying the contaminated soil quantitatively discharged from the vibration feed port; a particle size screening machine 50 provided with a screening net 51 for screening the contaminated soil transferred from the transfer belt 40 into soil having a particle size of a predetermined particle size or less and contaminated soil having a particle size of a predetermined particle size or more; a high-pressure washing device 30 for washing the contaminated soil having a particle size of a predetermined particle size or less received from the particle size sieving machine 50 at a high pressure, separating the contaminated soil into a remediated soil and a contaminant, and discharging the remediated soil and the contaminant; and a screening device 60 that receives the remediated soil and the contaminants discharged from the high pressure leaching device, and discharges the remediated soil having a predetermined particle size or more and the wastewater having a predetermined particle size or less based on the predetermined particle size.
The high pressure leaching apparatus 30 includes: a primary mixing chamber 33 formed with an inlet 31 for feeding contaminated soil and water and a high pressure leaching water inlet 32 for high pressure leaching water to enter; a high-speed mixing chamber 34 located on the downstream side of the primary mixing chamber 33 and having a reduced diameter with respect to the primary mixing chamber 33, and an expansion collision chamber 35 located on the downstream side of the high-speed mixing chamber 34 and having an increased diameter with respect to the high-speed mixing chamber 34.
The soil input device 10 may be a vibrating funnel.
The following describes a process of repairing soil by using the modular mobile soil washing system according to an embodiment of the present invention with reference to the drawings.
First, contaminated soil to be restored is input into the soil input device 10, and the soil input device 10 may be a vibrating hopper, and the contaminated soil is discharged while vibrating, so that a clogging phenomenon of a lower discharge port of the soil input device 10 can be prevented.
The contaminated soil is discharged from the soil loading device 10 to the vibration feeder 20, and the contaminated soil is discharged to the conveyor 40 at a predetermined fixed amount by adjusting the vibration speed of the vibration feeder 20.
Soil and water with a specified particle size or less are fed from an inlet 31 of the high-pressure leaching device 30, high-speed air flow is generated in the high-pressure leaching device 30, the high-pressure leaching water, the air and the target soil entering the high-pressure leaching device 30 are mixed in a primary mixing chamber 33 of the high-pressure leaching device 30, and then enter a high-speed mixing chamber 34 with a reduced diameter to be instantly mixed to form high-pressure high-speed fluid. The high-pressure high-speed fluid is formed and enters the expansion collision chamber 35 having a larger diameter, and the mixed fluid rapidly expands in the expansion collision chamber 35 and collides with the collision wall 351 at the rear end, thereby breaking the target soil particles. The target soil coarse-grained components and the harmful substances are separated into a large amount of fine-grained components by a strong crushing force by the high-speed high-pressure impact.
The remediated soil after the above-described heavy leaching in the high pressure leaching apparatus 30 is discharged to the screening apparatus 60 through the discharge port 352 of the high pressure leaching apparatus 30, and the screening apparatus 60 receives the remediated soil and the contaminated materials discharged from the high pressure leaching apparatus 30, discharges the remediated soil with a predetermined particle size (for example, 0.1mm) as purified soil, and discharges the remediated soil with a predetermined particle size or smaller as waste water to the waste water tank 80.
The pollutants and fine dust discharged as the waste water can be purified into process water by the steps of precipitation, dehydration, and the like, and the sludge is dehydrated by a filter press to bury the waste or to stabilize the sludge.
According to the utility model discloses a portable soil washing system of modularization can adopt the physics nature particle diameter to cut apart the harmful substance that the solubility is low, does not consider initial stage concentration or content, to the harmful substance that the solubility is high utilize high pressure leaching water to extract harmful substance from soil and purify can, therefore application scope is wide.
Moreover, since the high-pressure leaching manner is used and the leaching water and the target soil after high-speed mixing collide with the rear end wall as the collision wall 351 in the expansion collision chamber 35, the soil particles are crushed, the soil coarse-grained components and the harmful substances are separated into a large amount of fine-grained components due to strong crushing force, the removal effect and the remediation efficiency of the heavy metal pollutants are improved, and the miniaturization of the clean-water high-pressure leaching soil remediation system can be realized.
In addition, because the physical leaching method only uses water without using a chemical solvent, the method does not generate 2 times of pollution due to the chemical solvent, does not need more water to dilute sewage, has low by-products, has small equipment volume, is easy to install, dismantle and carry, and has the minimum influence on the surrounding environment.
A modular mobile soil washing system according to another embodiment of the present invention is described below with reference to fig. 3.
Compared with the modular mobile soil washing system of the previous embodiment, the modular mobile soil washing system of the present embodiment further includes a drum washer 70, where the drum washer 70 is disposed between the conveyor belt 40 and the grain size screener 50, receives the contaminated soil from the conveyor belt 40, and cleans the contaminated soil with clean water.
As described above, the sieving net 51 provided in the particle size sieving machine 50 can sieve a desired particle size of 2 to 40mm as needed. On the other hand, for soil with a particle size of 2mm or more, the soil can be washed by sprinkling water in a vibrator. Therefore, after the soil cleaned by the drum washer 70 is sieved by the particle size sieving machine 50, the soil having a predetermined particle size or more can be directly discharged as clean soil.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. A modular mobile soil washing system is characterized in that,
the method comprises the following steps:
a soil input device (10) for receiving contaminated soil and discharging the contaminated soil while vibrating;
a vibration inlet (20) for receiving the contaminated soil discharged from the soil input device (10) and quantitatively discharging the contaminated soil by controlling a vibration speed;
a conveyor belt (40) receiving and conveying the contaminated soil quantitatively discharged from the vibratory feed port;
a particle size screening machine (50) provided with a screening net (51) for screening the contaminated soil conveyed from the conveyor belt (40) into soil having a particle size of a predetermined particle size or less and contaminated soil having a particle size of a predetermined particle size or more;
a high-pressure washing device (30) for washing the contaminated soil with a particle size below a predetermined particle size received from the particle size screening machine (50) at a high pressure, separating the contaminated soil into a remediated soil and a contaminated material, and discharging the remediated soil and the contaminated material; and
and a screening device (60) which receives the remediated soil and the contaminants discharged from the high pressure leaching device, discharges purified soil having a predetermined particle size or more and discharges waste water having a predetermined particle size or less, based on the predetermined particle size.
2. The modular mobile soil washing system of claim 1,
also included is a drum washer (70) disposed between the conveyor belt (40) and the size screener (50) for receiving contaminated soil from the conveyor belt (40) and for performing a clean water wash of the contaminated soil.
3. The modular mobile soil washing system of claim 1,
the high-pressure rinsing device (30) comprises:
a primary mixing chamber (33) formed with an inlet (31) for feeding contaminated soil and water and a high-pressure leaching water inlet (32) for high-pressure leaching water;
a high-speed mixing chamber (34) located on the downstream side of the primary mixing chamber (33) and having a reduced diameter relative to the primary mixing chamber (33); and
an expansion collision chamber (35) located on the downstream side of the high-speed mixing chamber (34) and having a larger diameter than the high-speed mixing chamber (34).
4. The modular mobile soil washing system of claim 1,
the soil input device (10) may be a vibrating funnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922079343.2U CN211304216U (en) | 2019-11-27 | 2019-11-27 | Modularized mobile soil leaching system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922079343.2U CN211304216U (en) | 2019-11-27 | 2019-11-27 | Modularized mobile soil leaching system |
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| CN211304216U true CN211304216U (en) | 2020-08-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110842017A (en) * | 2019-11-27 | 2020-02-28 | 智优株式会社 | Modularized mobile soil leaching system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110842017A (en) * | 2019-11-27 | 2020-02-28 | 智优株式会社 | Modularized mobile soil leaching system |
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