CN112657239B - System and method for removing inorganic inert impurities in humus soil - Google Patents
System and method for removing inorganic inert impurities in humus soil Download PDFInfo
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- CN112657239B CN112657239B CN202011402972.5A CN202011402972A CN112657239B CN 112657239 B CN112657239 B CN 112657239B CN 202011402972 A CN202011402972 A CN 202011402972A CN 112657239 B CN112657239 B CN 112657239B
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Abstract
The invention relates to a system and a method for removing inorganic inert impurities in humus, wherein the system comprises a stirring pool, an overflow pool, a water collecting chamber and an air compressor communicated with the water collecting chamber, wherein the stirring pool, the overflow pool and the water collecting chamber are sequentially communicated, the top of the stirring pool is provided with a feed inlet, and a drain board mud-water separation mechanism communicated with the water collecting chamber is arranged in the overflow pool; the method comprises the following steps: adding humus soil and water into a stirring pool for stirring and mixing, so that inorganic inert impurities in the humus soil are precipitated at the bottom of the stirring pool, and a solution formed by dissolving the humus soil in the water enters an overflow pool for vacuum suction and dehydration, and the separated water enters a water collecting chamber for collection. Compared with the prior art, the method solves the problem that inorganic impurities such as broken stone, broken glass and the like with more particles and smaller particles in humus cannot be separated by wet stirring and cleaning; the drain board is utilized to carry out vacuum preloading treatment, so that the efficient separation of mud and water can be realized.
Description
Technical Field
The invention belongs to the technical field of treatment of humus soil in the process of mining and screening stored garbage, and relates to a system and a method for removing inorganic inert impurities in humus soil.
Background
Humus soil is the component with the highest proportion after the mature garbage is screened, contains rich organic matters, microorganisms and nutrient elements, has excellent physicochemical properties, and can be used as soil for urban greening and can also be used as a bioreactor filler or medium with excellent performance.
At present, mineralized garbage mined in domestic landfill sites is mainly used as urban greening soil or pit backfill after being treated in the utilization mode of undersize humus. However, the humus soil contains a plurality of inorganic matters such as broken stone and broken glass with smaller particles, and particularly in the southern area, organic matters in the humus soil are lost after heavy rain washing due to a plurality of precipitation in summer, and the residual broken stone and broken glass are more, so that the appearance and effect of the humus soil as greening soil are greatly influenced. The existing humus soil screening technology cannot separate small-particle sand and humus soil, and resource recycling of the humus soil is greatly restricted.
Disclosure of Invention
The invention aims to provide a system and a method for removing inorganic inert impurities in humus soil, which can remove the inorganic inert impurities in the humus soil by mining and screening the stored garbage.
The aim of the invention can be achieved by the following technical scheme:
the system comprises a stirring pool, an overflow pool, a water collecting chamber and an air compressor, wherein the stirring pool, the overflow pool, the water collecting chamber and the air compressor are sequentially communicated, the top of the stirring pool is provided with a feed inlet, and a drain board mud-water separation mechanism communicated with the water collecting chamber is arranged in the overflow pool. The feed inlet is used for adding humus soil and water for cleaning into the stirring pool. The air compressor dewaters the humus soil dissolved in water in the overflow pool through vacuum pumping.
Further, the stirring pool is cylindrical, and stirring paddles are arranged inside the stirring pool. The stirring paddle is used for fully mixing humus soil with the cleaning water and separating the humus soil from sand and stone impurities. The cylindric stirring pond can prevent the dead angle, makes muddy water intensive mixing.
Preferably, the top of the stirring paddle is provided with a plate and a clamping groove which are as wide as the stirring pool, the plate and the clamping groove can be placed on the stirring pool to slide left and right so as to adjust the position of the stirring paddle, and the blade height of the stirring paddle can be adjusted so as to determine optimal technological parameters.
Further, an overflow plate is arranged between the stirring pool and the overflow pool. The solution in the stirring pool flows into the overflow pool through the top of the overflow plate.
Further, the drain plate mud-water separator comprises a drain plate arranged in the overflow tank, a drain plate joint arranged at the top of the drain plate and a drain pipe connected with the drain plate joint, wherein the side surface of the water collecting chamber is provided with an overflow tank drain outlet communicated with the drain pipe. The drain board connector is used for communicating a drain pipe with the drain board.
Preferably, a drain board clamping groove matched with the drain board is arranged in the overflow pool and used for fixing the drain board.
Preferably, the drain board is an FDPS-B anti-clogging plastic drain board.
Preferably, the overflow pool is internally provided with a plurality of drain board mud-water separation mechanisms, a multi-way joint is arranged between drain pipes of the plurality of drain board mud-water separation mechanisms, and a main drain pipe is arranged between the multi-way joint and a drain outlet of the overflow pool.
One or more water-mud separation mechanisms of the drain board can be arranged according to the actual requirements and the overall size of the system. If one is arranged, the drain pipe is directly connected with the drain outlet of the overflow pool; if a plurality of drain board mud-water separation mechanisms are arranged in the overflow pool, drain pipes in each drain board mud-water separation mechanism are connected with a main drain pipe through multi-way connectors with the corresponding number of connectors, the main drain pipe is connected with a drain outlet of the overflow pool, and water is discharged into a water collecting chamber through the drain outlet of the overflow pool by the main drain pipe.
Further, the side surface of the water collecting chamber is provided with an air compressor inlet communicated with the air compressor.
Further, a vacuum gauge is arranged on the water collecting chamber.
Further, a water collecting chamber water outlet is arranged on the side face of the water collecting chamber, and a valve is arranged at the water collecting chamber water outlet.
Preferably, the height of the overflow pool water outlet and the height of the air compressor inlet are both larger than those of the water collecting chamber water outlet.
Further, the side surface of the stirring pool is provided with a backflow water inlet communicated with the water outlet of the water collecting chamber. The water in the water collecting chamber flows back to the stirring pool through the water outlet of the water collecting chamber and the water inlet of the backflow water for recycling.
Preferably, the water collecting chamber water outlet is not lower than the water return inlet, so that the cleaning water naturally returns.
The method for removing inorganic inert impurities in humus soil based on the system comprises the following steps: adding humus soil and water into a stirring pool for stirring and mixing, so that inorganic inert impurities in the humus soil are precipitated at the bottom of the stirring pool, and a solution formed by dissolving the humus soil in the water enters an overflow pool for vacuum suction and dehydration, and the separated water enters a water collecting chamber for collection.
The invention designs a system and a method for removing inorganic inert impurities in the humus ground for mining and screening the stored garbage aiming at the humus ground after mining and screening the stored garbage. Through wet stirring, the humus soil is dissolved in water, and the sand and the stone are used as precipitation separation, so that the problem that small-particle inorganic impurities in the humus soil are difficult to screen is solved; the humus soil solution cleaned by the wet method is dehydrated by a vacuum preloading method, and compared with the traditional plate-and-frame filter pressing method, the method has the advantages of simple operation and low cost. The dehydrated water is reused as cleaning water, so that zero discharge of sewage is realized, and the whole cleaning process is green and efficient.
The application process of the invention is as follows: the humus soil and water enter a stirring tank from a feed inlet, are fully mixed under the action of a stirring paddle, sand and stone are precipitated at the bottom, and humus soil solution flows into the overflow tank through the top of the overflow plate so as to be separated from sand and stone; one or more drain boards are arranged in the overflow pool, and high-efficiency dehydration of humus soil is realized through vacuum suction; the cleaned and dehydrated humus soil is collected in an overflow pond, is used as high-organic matter greening soil after being treated, and the dehydrated water is collected through a water collecting chamber and then flows back to a stirring pond through a water collecting chamber water outlet to be reused as cleaning water. The system of the invention operates intermittently, a switch valve is arranged at the water outlet of the water collecting chamber, the valve is closed in the vacuum pumping process, and the water collecting chamber collects water; after a period of operation, the valve is opened, and the cleaning water is returned for replenishment.
Compared with the prior art, the invention has the following characteristics:
1) The wet stirring and cleaning method solves the problem that inorganic impurities such as broken stone, broken glass and the like with more particles and smaller particles in humus soil cannot be separated;
2) The drainage plate is utilized for vacuum preloading treatment, so that not only can the efficient separation of mud and water be realized, but also the operation is simpler and the cost is lower than that of the traditional plate-frame filter pressing;
3) The cleaning water is recycled, water is saved, the requirement of zero discharge of sewage is met, and the whole cleaning process is green and efficient;
4) The separated sand and stone can be used as building inorganic aggregate, and the mud can be used as greening soil with high organic matter content, so that the resource grading and efficient utilization can be realized.
Drawings
FIG. 1 is a schematic diagram of the system in embodiment 1;
the figure indicates:
1-stirring pool, 2-overflow pool, 3-water collecting chamber, 4-air compressor, 5-feed inlet, 6-overflow plate, 7-drainage plate, 8-drainage plate joint, 9-drainage pipe, 10-overflow pool water outlet, 11-multi-way joint, 12-total drainage pipe, 13-air compressor inlet, 14-vacuum meter, 15-water collecting chamber water outlet, 16-valve, 17-backwater water inlet and 18-stirring paddle.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples. The present embodiment is implemented on the premise of the technical scheme of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following examples.
Example 1:
the system for removing inorganic inert impurities in humus soil shown in fig. 1 comprises a stirring tank 1, an overflow tank 2, a water collecting chamber 3 and an air compressor 4 communicated with the water collecting chamber 3, wherein a feed inlet 5 is formed in the top of the stirring tank 1, and a drain board mud-water separation mechanism communicated with the water collecting chamber 3 is arranged in the overflow tank 2.
Wherein, stirring paddles 18 are arranged in the stirring pool 1. An overflow plate 6 is arranged between the stirring tank 1 and the overflow tank 2.
The drain plate mud-water separator comprises a drain plate 7 arranged in the overflow tank 2, a drain plate joint 8 arranged at the top of the drain plate 7 and a drain pipe 9 connected with the drain plate joint 8, and an overflow tank drain outlet 10 communicated with the drain pipe 9 is arranged on the side surface of the water collecting chamber 3. Two drain board mud-water separator mechanisms are arranged in the overflow tank 2, a multi-way joint 11 is arranged between drain pipes 9 of the two drain board mud-water separator mechanisms, and a main drain pipe 12 is arranged between the multi-way joint 11 and a drain outlet 10 of the overflow tank.
The side surface of the water collection chamber 3 is provided with an air compressor inlet 13 communicated with the air compressor 4. The water collection chamber 3 is provided with a vacuum gauge 14. A water collecting chamber outlet 15 is arranged on the side surface of the water collecting chamber 3, and a valve 16 is arranged at the water collecting chamber outlet 15. The side of the stirring tank 1 is provided with a backflow water inlet 17 communicated with the water collecting chamber water outlet 15.
The method for removing inorganic inert impurities in humus based on the system comprises the following steps: adding humus soil and water into a stirring tank 1 for stirring and mixing, precipitating inorganic inert impurities in the humus soil at the bottom of the stirring tank 1, allowing a solution formed by dissolving the humus soil in the water to enter an overflow tank 2 for vacuum suction and dehydration, and allowing the separated water to enter a water collecting chamber 3 for collection.
The specific application process is as follows:
humus soil and water enter the stirring tank 1 from the feed inlet 5, are fully mixed under the action of the stirring paddles 18, sand and stone are deposited at the bottom, and humus soil solution flows into the overflow tank 2 through the top of the overflow plate 6 so as to be separated from sand and stone; a plurality of drain plates 7 are arranged in the overflow pool 2, and high-efficiency dehydration of humus soil is realized through vacuum suction; the cleaned and dehydrated humus soil is collected in the overflow tank 2, is used as high-organic matter greening soil after being treated, and the dehydrated water is collected by the water collecting chamber 3 and then flows back to the stirring tank 1 through the water collecting chamber water outlet 15 to be reused as cleaning water. The system is operated intermittently, the valve 16 is closed in the vacuum suction process, and the water collection chamber 3 collects water; after a period of operation, valve 16 is opened and the wash water is returned for replenishment.
Example 2:
in this embodiment, only one drain plate mud-water separation mechanism is provided, and the drain pipe 9 is directly connected to the overflow tank drain port 10. The procedure is as in example 1.
The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present invention. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present invention.
Claims (7)
1. The system for removing inorganic inert impurities in humus soil is characterized by comprising a stirring tank (1), an overflow tank (2), a water collecting chamber (3) and an air compressor (4) which are sequentially communicated with the water collecting chamber (3), wherein a feed inlet (5) is formed in the top of the stirring tank (1), and a drain board mud-water separation mechanism which is communicated with the water collecting chamber (3) is arranged in the overflow tank (2);
a stirring paddle (18) is arranged in the stirring tank, and an overflow plate (6) is arranged between the stirring tank (1) and the overflow tank (2); the drain plate mud-water separator comprises a drain plate (7) arranged in the overflow tank (2), a drain plate joint (8) arranged at the top of the drain plate (7) and a drain pipe (9) connected with the drain plate joint (8), and an overflow tank drain outlet (10) communicated with the drain pipe (9) is arranged on the side surface of the water collecting chamber (3);
the humus soil and water enter a stirring tank from a feed inlet, are fully mixed under the action of a stirring paddle, sand and stone are precipitated at the bottom, and humus soil solution flows into the overflow tank through the top of the overflow plate so as to be separated from sand and stone; one or more drain boards are arranged in the overflow pool, and high-efficiency dehydration of humus soil is realized through vacuum suction; collecting the cleaned and dehydrated humus soil in an overflow pond, using the cleaned and dehydrated humus soil as high-organic matter greening soil after treatment, collecting dehydrated water through a water collecting chamber, and then refluxing the water to a stirring pond through a water collecting chamber water outlet to be reused as cleaning water;
the system operates intermittently, a switch valve is arranged at the water outlet of the water collecting chamber, the valve is closed in the vacuum pumping process, and the water collecting chamber collects water; after a period of operation, the valve is opened, and the cleaning water is returned for replenishment.
2. The system for removing inorganic inert impurities from humus soil according to claim 1, wherein the stirring tank (1) is cylindrical.
3. The system for removing inorganic inert impurities in humus soil according to claim 1, wherein a plurality of drain-board sludge-water separation mechanisms are arranged in the overflow tank (2), a multi-way joint (11) is arranged between drain pipes (9) of the plurality of drain-board sludge-water separation mechanisms, and a total drain pipe (12) is arranged between the multi-way joint (11) and a drain outlet (10) of the overflow tank.
4. The system for removing inorganic inert impurities in humus soil according to claim 1, wherein an air compressor inlet (13) communicated with the air compressor (4) is arranged on the side surface of the water collecting chamber (3).
5. The system for removing inorganic inert impurities in humus soil according to claim 1, wherein the water collection chamber (3) is provided with a vacuum gauge (14).
6. The system for removing inorganic inert impurities in humus soil according to claim 1, wherein a water collecting chamber drain outlet (15) is arranged on the side surface of the water collecting chamber (3), and a valve (16) is arranged at the water collecting chamber drain outlet (15).
7. The system for removing inorganic inert impurities in humus soil according to claim 6, wherein a backflow water inlet (17) communicated with the water collecting chamber water outlet (15) is arranged on the side surface of the stirring tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011402972.5A CN112657239B (en) | 2020-12-04 | 2020-12-04 | System and method for removing inorganic inert impurities in humus soil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011402972.5A CN112657239B (en) | 2020-12-04 | 2020-12-04 | System and method for removing inorganic inert impurities in humus soil |
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| CN112657239A CN112657239A (en) | 2021-04-16 |
| CN112657239B true CN112657239B (en) | 2023-05-02 |
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| CN104226680A (en) * | 2014-10-09 | 2014-12-24 | 常州大学 | Repairing device and method for cadmium-contaminated soils |
| CN209835809U (en) * | 2019-05-05 | 2019-12-24 | 云南建投建筑机械有限公司 | Automatic recovery system of concrete slurry |
| CN111548233A (en) * | 2020-04-30 | 2020-08-18 | 南京大学 | Bio-organic fertilizer taking humus soil in stock household garbage as raw material and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392438A (en) * | 2011-10-31 | 2012-03-28 | 上海交通大学 | Dehydration drying method capable of improving bearing capacity of dredged sediment stock dump |
| KR20150072757A (en) * | 2013-12-20 | 2015-06-30 | 변종석 | Drain board and method for forming the same |
| CN105258669B (en) * | 2015-11-03 | 2017-10-24 | 江苏建筑职业技术学院 | Rain pipe sedimentation post processing simulation test device and method in a kind of sea silt soil |
| CN111847826A (en) * | 2020-07-31 | 2020-10-30 | 江苏科技大学 | Bottom vacuum negative pressure double-sided rapid sludge dewatering experiment and application system |
| CN111777232A (en) * | 2020-08-05 | 2020-10-16 | 新能凤凰（滕州）能源有限公司 | Production wastewater defluorination treatment system and method |
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- 2020-12-04 CN CN202011402972.5A patent/CN112657239B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226680A (en) * | 2014-10-09 | 2014-12-24 | 常州大学 | Repairing device and method for cadmium-contaminated soils |
| CN209835809U (en) * | 2019-05-05 | 2019-12-24 | 云南建投建筑机械有限公司 | Automatic recovery system of concrete slurry |
| CN111548233A (en) * | 2020-04-30 | 2020-08-18 | 南京大学 | Bio-organic fertilizer taking humus soil in stock household garbage as raw material and preparation method thereof |
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