CN115228911A - Pollute soil restoration with drip washing test system - Google Patents
Pollute soil restoration with drip washing test system Download PDFInfo
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- CN115228911A CN115228911A CN202210711833.3A CN202210711833A CN115228911A CN 115228911 A CN115228911 A CN 115228911A CN 202210711833 A CN202210711833 A CN 202210711833A CN 115228911 A CN115228911 A CN 115228911A
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- 239000002689 soil Substances 0.000 title claims abstract description 99
- 238000012360 testing method Methods 0.000 title claims abstract description 59
- 238000005406 washing Methods 0.000 title abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 116
- 239000007788 liquid Substances 0.000 claims abstract description 101
- 238000003756 stirring Methods 0.000 claims abstract description 46
- 238000005067 remediation Methods 0.000 claims abstract description 45
- 238000002386 leaching Methods 0.000 claims abstract description 41
- 238000007599 discharging Methods 0.000 claims abstract description 27
- 230000008439 repair process Effects 0.000 claims abstract description 19
- 238000005507 spraying Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000012216 screening Methods 0.000 claims description 49
- 238000000926 separation method Methods 0.000 claims description 18
- 238000007873 sieving Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000013019 agitation Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 description 20
- 239000004576 sand Substances 0.000 description 9
- 239000007921 spray Substances 0.000 description 7
- 210000003437 trachea Anatomy 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The disclosure provides a contaminated soil remediation is with drip washing test system, includes: a feed hopper; the spraying pipe is arranged on the feed hopper, repair liquid is introduced into the liquid inlet end of the spraying pipe, and the liquid outlet end of the spraying pipe is connected with the material inlet end of the feed hopper; the feeding end of the mixing pipe is connected with the discharging end of the feeding hopper; and the stirring end of the stirring device is arranged in the mixing pipe. In the leaching test system for contaminated soil remediation, the remediation liquid is fully mixed and contacted with the contaminated soil by spraying of the spraying pipe and stirring of the stirring device, so that the remediation quality of the contaminated soil by the remediation liquid is effectively improved, the high efficiency of the contaminated soil remediation test is ensured, and high-efficiency and high-quality contaminated soil remediation is realized.
Description
Technical Field
The disclosure relates to the technical field of polluted soil remediation, in particular to a leaching test system for polluted soil remediation.
Background
With the development of industrialization, the phenomenon that soil is polluted is more and more, and the soil is applied in more fields, especially the fields of planting and building of crops, so that the remediation of the polluted soil is very important. Prior to contaminated soil remediation, it is often necessary to test the contaminated soil remediation to find the best remediation method.
At present, a polluted soil remediation test is that a remediation liquid is directly injected into polluted soil, and although the mode can play a certain role in remediation of the polluted soil, the remediation liquid cannot be in full contact with the polluted soil, so that the remediation quality of the polluted soil is low, and the expected effect cannot be achieved.
Disclosure of Invention
The present disclosure is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the invention aims to provide a leaching test system for polluted soil remediation.
In order to achieve the above object, the present disclosure provides a leaching test system for contaminated soil remediation, comprising: a feed hopper; the spraying pipe is arranged on the feed hopper, repair liquid is introduced into the liquid inlet end of the spraying pipe, and the liquid outlet end of the spraying pipe is connected with the material inlet end of the feed hopper; the feeding end of the mixing pipe is connected with the discharging end of the feeding hopper; and the stirring end of the stirring device is arranged in the mixing pipe.
Optionally, the leaching test system further comprises: the air pipe, tracheal inlet end lets in high-pressure air, tracheal end of giving vent to anger with the inlet end of hybrid tube links to each other, the feed end of hybrid tube is located between the inlet end of hybrid tube and the discharge end of hybrid tube.
Optionally, the leaching test system further comprises: the air pressure detection device is arranged on the air pipe, and the detection end of the air pressure detection device is arranged in the air pipe.
Optionally, the leaching test system further comprises: the connecting cover is connected with the air outlet end of the air pipe, and the connecting cover is sleeved on the air inlet end of the mixing pipe in a threaded manner; the first flange is arranged on the discharge end of the feed hopper; the second flange is arranged on the feeding end of the mixing pipe, and the first flange is connected with the second flange through bolts.
Optionally, the stirring device comprises: the stirring shaft is rotatably arranged in the mixing pipe; the helical blade is sleeved on the stirring shaft, and a discharge channel is formed between the outer circumferential surface of the helical blade and the pipe wall of the mixing pipe; the driving piece is arranged on the mixing pipe, the driving piece is in transmission connection with the stirring shaft, and the driving piece drives the stirring shaft to rotate.
Optionally, the helical blade includes: the first blade is sleeved on the stirring shaft, and the spiral advancing direction of the first blade faces to the discharge end of the mixing pipe from the feed end of the mixing pipe; the second blade is sleeved on the stirring shaft, the spiral advancing direction of the second blade is towards the feeding end of the mixing pipe from the discharging end of the mixing pipe, and a hedging cavity is formed between the first blade and the second blade.
Optionally, the leaching test system further comprises: the lower sieve discharge end of the first sieving device is movably connected with the feed end of the feed hopper, and the upper sieve discharge end of the first sieving device is connected with the first storage area; the first splash guard is arranged at the feeding end of the feeding hopper, and the undersize discharging end of the first screening device is inserted into the first splash guard.
Optionally, the leaching test system further comprises: the feeding end of the second screening device is movably connected with the discharging end of the mixing pipe, and the discharging end on the screen of the second screening device is connected with the second storage area; the second splash guard is arranged at the feeding end of the second screening device, and the discharging end of the mixing pipe is inserted into the second splash guard; and the feed end of the solid-liquid separation device is movably connected with the undersize discharge end of the second screening device, the solid discharge end of the solid-liquid separation device is connected with the third storage area, and the liquid discharge end of the solid-liquid separation device is connected with the fourth storage area.
Optionally, the mixing tube is close to the discharge end department of mixing tube is provided with the access hole, be provided with the apron on the access hole.
Optionally, the leaching test system further comprises: the mixing pipe is inserted in the mounting hole, and the limiting blocks are clamped in the limiting grooves.
The technical scheme provided by the disclosure can comprise the following beneficial effects:
through the spraying of the spraying pipe and the stirring of the stirring device, the repairing liquid is fully mixed and contacted with the polluted soil, so that the repairing quality of the repairing liquid to the polluted soil is effectively improved, the efficient proceeding of the polluted soil repairing test is ensured, and the high-efficiency and high-quality polluted soil repairing is realized.
Additional aspects and advantages of the disclosure will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the disclosure.
Drawings
The above and/or additional aspects and advantages of the present disclosure will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a leaching test system for contaminated soil remediation according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a leaching test system for contaminated soil remediation according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a leaching test system for contaminated soil remediation according to an embodiment of the present disclosure;
as shown in the figure: 1. the device comprises a feed hopper, 2, a spray pipe, 3, a mixing pipe, 4, a stirring device, 5, an air pipe, 6, an air pressure detection device, 7, a connecting cover, 8, a first flange, 9, a second flange, 10, a stirring shaft, 11, a driving part, 12, a first blade, 13, a second blade, 14, a discharge channel, 15, a hedging chamber, 16, a first screening device, 17, a first splash guard, 18, a second screening device, 19, a second splash guard, 20, a solid-liquid separation device, 21, an inspection hole, 22, a cover plate, 23, a bracket, 24, a mounting hole, 25, a limiting groove, 26, a limiting block, 27, a first storage area, 28, a second storage area, 29, a third storage area, 30 and a fourth storage area.
Detailed Description
Reference will now be made in detail to the embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of illustrating the present disclosure and should not be construed as limiting the same. On the contrary, the embodiments of the disclosure include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
As shown in figure 1, the embodiment of the present disclosure provides a contaminated soil is restoreed and is used drip washing test system, including feeder hopper 1, shower 2, hybrid tube 3 and agitating unit 4, shower 2 sets up on the feeder hopper 1, repair liquid is let in to the inlet end of shower 2, the play liquid end of shower 2 with the feed end of feeder hopper 1 links to each other, the feed end of hybrid tube 3 with the discharge end of feeder hopper 1 links to each other, agitating unit 4's stirring end sets up in the hybrid tube 3.
It can be understood that the repair liquid enters the spraying pipe 2 from the liquid inlet end of the spraying pipe 2 and is sprayed into the feed hopper 1 from the liquid outlet end of the spraying pipe 2, and meanwhile, the polluted soil enters the feed hopper 1 from the material inlet end of the feed hopper 1, so that the repair liquid and the polluted soil are primarily mixed; the restoration liquid after preliminary mixing and contaminated soil enter into mixing tube 3 by the discharge end of feeder hopper 1 to under the stirring of agitating unit 4 stirring end, make restoration liquid and further intensive mixing of contaminated soil, thereby realize the restoration to contaminated soil.
From this, through the spraying of shower 2 and the stirring of agitating unit 4, make repair liquid and contaminated soil intensive mixing contact to effectively improved repair liquid and to the restoration quality of contaminated soil, guaranteed that contaminated soil restores experimental high-efficient going on, and then realize high efficiency, high-quality contaminated soil restoration.
It should be noted that the feed hopper 1 comprises a feed end and a discharge end, and the size of the feed end of the feed hopper 1 is larger than that of the discharge end of the feed hopper 1, so as to ensure that the remediation liquid and the polluted soil can smoothly enter the mixing pipe 3.
The spray pipe 2 comprises a liquid inlet end and a plurality of liquid outlet ends, and the liquid outlet ends are uniformly distributed on the spray pipe 2 to realize the uniform spraying of the repairing liquid in the feed hopper 1, so that the repairing of the polluted soil is started when the polluted soil is preliminarily mixed. Wherein, go out the structure of liquid end and can set up according to actual need, for example: the liquid outlet end can be provided with a plurality of spray heads; can be a liquid outlet hole arranged on the spray pipe 2, etc. The shape of the shower pipe 2 can be set according to actual needs, for example: the shower 2 may be rectangular in shape; may be circular, etc.
Repair liquid can be stored in the liquid storage tank before entering shower 2, can carry through the delivery pump between liquid storage tank and the shower 2, and the feed liquor end of delivery pump links to each other with the play liquid end of liquid storage tank promptly, and the play liquid end of delivery pump links to each other with the feed liquor end of shower 2, and from this when the delivery pump moves, repair liquid in the liquid storage tank is carried in shower 2 and is sprayed in feeder hopper 1. In some embodiments, a flow meter and a pressure gauge are arranged on a pipeline between the liquid outlet end of the delivery pump and the liquid inlet end of the spray pipe 2, so that the flow and the pressure of the repairing liquid can be monitored, and the accuracy of the repairing test result of the polluted soil can be ensured. In some embodiments, a liquid level sensor is arranged in the liquid storage tank, an audible and visual alarm is arranged on the liquid storage tank, and the liquid level sensor is electrically connected with the audible and visual alarm. From this, when the liquid level in the liquid storage tank was crossed lowly, level sensor sent the signal of telecommunication to audible-visual annunciator, and audible-visual annunciator carries out audible-visual warning immediately to remind the operation personnel in time to supply repair liquid, guarantee the accuracy of contaminated soil restoration test result.
The components and the preparation method of the remediation liquid are not limited, and the remediation liquid can be set according to the type of the pollutants in the polluted soil, and can be tested and adjusted through a leaching test system. The ratio between the remediation solution and the contaminated soil is not limited herein, but it is ensured that the mixture between the remediation solution and the contaminated soil is in a fluid state.
Agitating unit 4 is used for repairing liquid and the stirring of contaminated soil mixture, and simultaneously, the ejection of compact of repairing liquid and contaminated soil mixture at the 3 discharge end of hybrid tube also can be realized through agitating unit 4's stirring, for example: the stirring device 4 and the mixing pipe 3 jointly form a spiral conveyor, and blades in the spiral conveyor can be used for stirring the mixture of the repair liquid and the polluted soil while conveying the mixture of the repair liquid and the polluted soil.
As shown in fig. 1, in some embodiments, the leaching test system further comprises an air pipe 5, an air inlet end of the air pipe 5 is filled with high-pressure air, an air outlet end of the air pipe 5 is connected with an air inlet end of the mixing pipe 3, and a feed end of the mixing pipe 3 is located between the air inlet end of the mixing pipe 3 and a discharge end of the mixing pipe 3.
It can be understood that high-pressure air enters into mixing tube 3 by trachea 5's inlet end and makes repair liquid and the contaminated soil mixture in the mixing tube 3 discharge end by mixing tube 3 discharge to guarantee repair liquid and the ejection of compact of contaminated soil mixture, simultaneously, high-pressure air can also break away contaminated soil after entering into mixing tube 3, makes contaminated soil and the mixture of repair liquid more abundant, thereby further improves the repair quality of repair liquid to contaminated soil.
It should be noted that the air inlet end of the mixing tube 3 is located at one end of the mixing tube 3, the air outlet end of the mixing tube 3 is located at the other end of the mixing tube 3, and the air inlet end of the mixing tube 3 is close to the air inlet end of the mixing tube 3, so that the flow direction of high-pressure air in the mixing tube 3 is the linear direction from the air inlet end of the mixing tube 3 to the air outlet end of the mixing tube 3, and the higher the flow velocity of air is, the lower the pressure intensity of air is, therefore, the structure does not hinder the contaminated soil and repairing liquid mixture from entering the mixing tube 3 from the air inlet end of the mixing tube 3, and accelerates the contaminated soil and repairing liquid mixture from entering the mixing tube 3, thereby ensuring stable repairing of the contaminated soil.
The high-pressure air can come from a compressed air tank, also can come from 5 ways of compressed air pipes in the factory building, and also can come from an air compressor, for example: the end of giving vent to anger of air compressor machine links to each other with the inlet end of trachea 5, and the air compressor machine operation, it carries trachea 5 after with outside air compression to make highly-compressed air enter into hybrid tube 3, wherein, highly-compressed air's pressure can set up according to actual need, does not do the restriction here.
The type of the air pipe 5 can be set according to actual needs, and the air pipe 5 can be a flexible pipe or a rigid pipe.
As shown in fig. 1, in some embodiments, the leaching testing system further comprises an air pressure detecting device 6, the air pressure detecting device 6 is disposed on the air pipe 5, and a detecting end of the air pressure detecting device 6 is disposed in the air pipe 5.
It can be understood that the pressure of the high-pressure air is convenient to monitor through the arrangement of the air pressure detection device 6, so that the accuracy of the polluted soil restoration test result is ensured.
The air pressure detecting device 6 is used to detect the air pressure in the air pipe 5, and may be an air pressure gauge, a pressure sensor, or the like. For example: trachea 5 includes first body, second body and three-way pipe, the inlet end of first body links to each other with the end of giving vent to anger of air compressor machine, the end of giving vent to anger of second body links to each other with the inlet end of hybrid tube 3, the first end of three-way pipe links to each other with the end of giving vent to anger of first body, the second end of three-way pipe links to each other with the inlet end of second body, the third end of three-way pipe links to each other with the sense terminal of barometer, therefore, realize the atmospheric pressure detection of highly-compressed air when guaranteeing that trachea 5 switches on highly-compressed air. Wherein, in some embodiments, an air filter is disposed on the first tube. It can be understood that, through the setting of air cleaner, impurity in the reducible high-pressure air not only can reduce the damage of parts such as atmospheric pressure detection device 6, hybrid tube 3, can further improve the accuracy of contaminated soil restoration test result moreover.
As shown in fig. 1, in some embodiments, the leaching test system further includes a connection cover 7, a first flange 8 and a second flange 9, the connection cover 7 is connected to the gas outlet end of the gas pipe 5, the connection cover 7 is threaded on the gas inlet end of the mixing pipe 3, the first flange 8 is disposed on the gas outlet end of the feed hopper 1, the second flange 9 is disposed on the gas inlet end of the mixing pipe 3, and the first flange 8 is connected to the second flange 9 through bolts.
It can be understood that through the setting of connecting cover 7, the dismouting between trachea 5 and the hybrid tube 3 of being convenient for, through the setting of first flange 8 and second flange 9, the dismouting between feeder hopper 1 and the hybrid tube 3 of being convenient for. Therefore, the assembling among the feed hopper 1, the mixing pipe 3 and the air pipe 5 is convenient, and the parts are convenient to carry independently, so that the leaching test system is more convenient to use.
It should be noted that both the feed hopper 1 and the mixing tube 3 can be provided with handles, so that the feed hopper 1 and the mixing tube 3 can be conveniently taken and placed by operators, and the leaching test system is more convenient to use.
Sealing gaskets can be arranged between the connecting cover 7 and the mixing pipe 3 and between the first flange 8 and the second flange 9 so as to ensure the sealing between the air pipe 5 and the mixing pipe 3 and between the feed hopper 1 and the mixing pipe 3.
A plurality of anti-slip mechanisms may be provided on the connection cover 7, for example: projections, ribs, etc. to facilitate the attachment and detachment of the connection cap 7 to the inlet end of the mixing tube 3.
To further reduce the weight of the carrying parts, a detachable structure may be provided between the shower 2 and the feed hopper 1, for example: a plurality of ear plates are arranged on the spray pipe 2 and are connected with the feed hopper 1 through bolts.
As shown in fig. 1, in some embodiments, the stirring device 4 includes a stirring shaft 10, a helical blade and a driving member 11, the stirring shaft 10 is rotatably disposed in the mixing tube 3, the helical blade is sleeved on the stirring shaft 10, a discharge passage 14 is formed between an outer circumferential surface of the helical blade and a tube wall of the mixing tube 3, the driving member 11 is disposed on the mixing tube 3, the driving member 11 is in transmission connection with the stirring shaft 10, and the driving member 11 drives the stirring shaft 10 to rotate.
It can be understood that the driving member 11 drives the stirring shaft 10 to rotate, the helical blades and the stirring shaft 10 rotate synchronously, so that the repairing liquid and the contaminated soil mixture are stirred in the mixing pipe 3, and the repairing liquid and the contaminated soil mixture are conveniently discharged from the mixing pipe 3 through the arrangement of the discharge passage 14.
It should be noted that, when the mixing shaft 10 is installed in the mixing tube 3, its center axis can coincide with the center axis of the mixing tube 3, a support plate is provided in the mixing tube 3, an opening for passing through the repairing liquid and the contaminated soil mixture is provided in the support plate, the mixing shaft 10 is inserted from the end of the mixing tube 3 close to the discharge end of the mixing tube and is rotationally connected with the support plate through a bearing, meanwhile, the mixing shaft 10 is rotationally connected with the end of the mixing tube 3 close to the discharge end of the mixing tube through a sealed bearing, the driving member 11 is fixedly arranged at the end of the mixing tube 3 close to the discharge end of the mixing tube, and the power output shaft of the driving member 11 is connected with the mixing shaft 10 through a coupler. Thus, the stirring shaft 10 and the driver 11 are mounted, and the driver 11 can drive the stirring shaft 10 to rotate in the mixing pipe 3.
The type of drive 11 can be set according to the actual need, for example: the drive 11 may be an electric drive motor, a hydraulic motor, or the like. A speed reducer can be arranged between the driving part 11 and the stirring shaft 10, namely, a power input shaft of the speed reducer is connected with a power output shaft of the driving part 11 through a coupler, and the power output shaft of the speed reducer is connected with the stirring shaft 10 through a coupler.
The dimensions of the discharge channel 14 can be set according to the actual requirements and are not limited here.
As shown in fig. 1, in some embodiments, the helical blades include a first blade 12 and a second blade 13, the first blade 12 is sleeved on the stirring shaft 10, the helical advancing direction of the first blade 12 is from the feeding end of the mixing tube 3 to the discharging end of the mixing tube 3, the second blade 13 is sleeved on the stirring shaft 10, the helical advancing direction of the second blade 13 is from the discharging end of the mixing tube 3 to the feeding end of the mixing tube 3, and an opposite-impact chamber 15 is formed between the first blade 12 and the second blade 13.
It can be understood that the first blade 12 conveys the repairing liquid and the contaminated soil mixture of the mixing pipe 3 close to the feeding end of the mixing pipe 3 to the opposite flushing chamber 15, and the second blade 13 conveys the repairing liquid and the contaminated soil mixture of the mixing pipe 3 close to the discharging end of the mixing pipe 3 to the opposite flushing chamber 15, so that the repairing liquid and the contaminated soil mixture at the two ends of the mixing pipe 3 impact each other in the opposite flushing chamber 15, the repairing liquid and the contaminated soil are further mixed and contacted fully, and the repairing quality of the repairing liquid to the contaminated soil is improved. And wherein due to the arrangement of the discharge channel 14, the mixture of remediation liquid and contaminated soil is ensured to be discharged from the mixing pipe 3 while the remediation liquid is thoroughly mixed with the contaminated soil.
It should be noted that the size of the opposite-direction chamber 15 can be set according to actual needs, and is not limited herein.
Because the polluted soil contains more impurities, especially larger-grained sand grains, masonry and the like, the polluted soil is sieved before entering the feed hopper 1, so that the parts such as the mixing pipe 3, the stirring device 4 and the like are prevented from being damaged by the larger-grained sand grains, masonry and the like. Wherein, the sand grains, the masonry and the like with larger grains can be sorted manually or can be screened by mechanical equipment.
In some embodiments, as shown in fig. 2, the leaching testing system further comprises a first screening device 16 and a first splash guard 17, wherein the undersize discharge end of the first screening device 16 is movably connected with the feed end of the feed hopper 1, the oversize discharge end of the first screening device 16 is connected with a first storage area 27, the first splash guard 17 is arranged on the feed end of the feed hopper 1, and the undersize discharge end of the first screening device 16 is inserted in the first splash guard 17.
It can be understood that, by the sieving of the first sieving device 16, the larger sand grains, masonry and the like are discharged into the first storage area 27 from the oversize discharge end of the first sieving device 16, and the polluted soil and the smaller sand grains, masonry and the like are discharged into the feed hopper 1 from the undersize discharge end of the first sieving device 16 for remediation; meanwhile, through the arrangement of the first splash guard 17, the polluted soil is prevented from splashing outside when entering the feed hopper 1 through the first screening device 16, and the polluted soil is prevented from polluting the surrounding environment while the accuracy of a polluted soil restoration test is ensured.
The undersize discharge end of the first screening device 16 is movably connected with the feed end of the feed hopper 1, so that the influence of the first screening device 16 on the feed hopper 1 is effectively reduced, and the stable operation of the leaching test system is ensured.
It should be noted that the first screening device 16 is used for screening contaminated soil, the first screening device 16 may be a vibrating screen, a cylindrical screen, etc., the oversize discharge end of the first screening device 16 refers to a port in the first screening device 16 for discharging material above the screen, the undersize discharge end of the first screening device 16 refers to a port in the first screening device 16 for discharging material below the screen, and the size of the screen hole of the first screening device 16 may be set according to actual needs, which is not limited herein.
The first storage area 27 may be a fixed place, a storage tank, a storage box, or the like.
The first splatter shield 17 may be sealed against the feed end of the feed hopper 1, for example: sealing is performed by a sealant, a seal ring, or the like. The first splatter shield 17 may be made of a transparent material, for example: tempered glass, plexiglass, etc., and may also be made of opaque materials, such as: aluminum alloys, rubber, and the like.
In the actual polluted soil restoration, larger grains of sand, masonry and the like can be placed into crushing equipment for crushing, and then placed into the first screening device 16 after crushing, so that restoration is performed through restoration liquid.
As shown in fig. 3, in some embodiments, the leaching test system further comprises a second screening device 18, a second splash guard 19, and a solid-liquid separation device 20, wherein a feeding end of the second screening device 18 is movably connected to a discharging end of the mixing pipe 3, an oversize discharging end of the second screening device 18 is connected to the second storage area 28, the second splash guard 19 is disposed at the feeding end of the second screening device 18, the discharging end of the mixing pipe 3 is inserted into the second splash guard 19, a feeding end of the solid-liquid separation device 20 is movably connected to an undersize discharging end of the second screening device 18, a solid discharging end of the solid-liquid separation device 20 is connected to the third storage area 29, and a liquid discharging end of the solid-liquid separation device 20 is connected to the fourth storage area 30.
It can be understood that, through the sieving of the second sieving device 18, the smaller sand grains, masonry and the like are discharged into the second storage area 28 from the oversize discharge end of the second sieving device 18, the mixture of the contaminated soil and the remediation liquid is discharged into the solid-liquid separation device 20 from the undersize discharge end of the second sieving device 18, the contaminated soil and the remediation liquid are separated by the solid-liquid separation device 20, the remediated contaminated soil is discharged into the third storage area 29 from the solid discharge end of the solid-liquid separation device 20, and the remediation liquid is discharged into the fourth storage area 30 from the liquid discharge end of the solid-liquid separation device 20. Therefore, the polluted soil, sand grains with small particles, masonry and the like to be restored and the restoration liquid are separated and stored, the analysis and the processing in the polluted soil restoration test are facilitated, and the accuracy of the polluted soil restoration test is ensured.
Meanwhile, through the arrangement of the second splash guard 19, the mixture of the polluted soil and the repairing liquid is prevented from splashing outside when entering the second screening device 18 from the mixing pipe 3, and the polluted soil repairing test accuracy is guaranteed while the surrounding environment is prevented from being polluted.
The feeding end of the second screening device 18 is movably connected with the discharging end of the mixing pipe 3, so that the influence of the second screening device 18 on the mixing pipe 3 is effectively reduced, and the stable operation of the leaching test system is ensured.
It should be noted that the second screening device 18 is used for screening the mixture of the contaminated soil and the remediation liquid, the second screening device 18 may be a vibrating screen, a cylindrical screen, etc., the oversize discharge end of the second screening device 18 refers to a port in the second screening device 18 for discharging the material above the screen, the undersize discharge end of the second screening device 18 refers to a port in the second screening device 18 for discharging the material below the screen, the size of the screen hole of the second screening device 18 may be set according to actual needs, and is not limited herein, wherein the size of the screen hole of the second screening device 18 should be smaller than that of the screen hole of the first screening device 16.
The second screening device 18 can also be a three-dimensional vibration screening filter to separate sand grains, masonry and the like with different grain sizes, so that the accuracy of the polluted soil restoration test is higher.
The second storage area 28 and the third storage area 29 may be fixed sites, and may also be storage tanks, storage bins, etc., and the fourth storage area 30 may be storage tanks, storage bins, etc., wherein the repair liquid in the fourth storage area 30 may be further processed for use, so as to avoid wasting resources.
The second splash guard 19 may be sealed to the feed end of the second screening device 18, for example: sealing is performed by a sealant, a seal ring, or the like. The second splatter shield 19 may be made of a transparent material, for example: tempered glass, plexiglass, etc., and may also be made of opaque materials, such as: aluminum alloys, rubber, and the like.
The solid-liquid separation device 20 may be a sieve type separation device or a sediment type separation device, and is not limited herein.
As shown in fig. 1, in some embodiments, the mixing tube 3 is provided with an access opening 21 near the discharge end of the mixing tube 3, and a cover plate 22 is disposed on the access opening 21.
It can be understood that the maintenance in the mixing tube 3 is facilitated while the stable operation of the mixing tube 3 is ensured by the arrangement of the access opening 21 and the cover plate 22, so that the use of the leaching test system is more convenient.
The cover plate 22 may be fixed to the access opening 21 by bolts, and the space between the cover plate 22 and the access opening 21 may be sealed by a gasket, a packing, or the like.
After the test is completed, cleaning water can be introduced through the access opening 21 or the feed hopper 1 to flush the interior of the mixing pipe 3.
As shown in fig. 1, in some embodiments, the leaching test system further includes a plurality of brackets 23, the brackets 23 are provided with mounting holes 24, the hole walls of the mounting holes 24 are provided with limiting grooves 25, the mixing tube 3 is provided with limiting blocks 26, the mixing tube 3 is inserted into the mounting holes 24, and the limiting blocks 26 are clamped in the limiting grooves 25.
It can be understood that the stable placement of the mixing tube 3 and thus the stable operation of the leaching test system is ensured by the arrangement of the bracket 23; the arrangement of the limiting block 26 and the limiting groove 25 prevents the mixing tube 3 from rotating relative to the bracket 23, and further ensures the stable operation of the leaching test system.
The bracket 23 is provided with a semicircular plate, the bracket 23 is provided with a semicircular groove, and the semicircular plate and the semicircular groove together form the mounting hole 24. Wherein, the semicircle board can articulate on bracket 23, and the semicircle board passes through the bolt, hasp etc. and fixes on bracket 23 to be convenient for the dismouting of mixing tube 3 on bracket 23.
The bracket 23 may be a base with a large floor space or a folding bracket with a high height.
It should be noted that, in the description of the present disclosure, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present disclosure, the meaning of "a plurality" is two or more unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present disclosure includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present disclosure.
In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means 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 present disclosure. 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.
While embodiments of the present disclosure have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present disclosure, and that changes, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present disclosure.
Claims (10)
1. The leaching test system for polluted soil remediation is characterized by comprising:
a feed hopper;
the spraying pipe is arranged on the feed hopper, repair liquid is introduced into the liquid inlet end of the spraying pipe, and the liquid outlet end of the spraying pipe is connected with the material inlet end of the feed hopper;
the feeding end of the mixing pipe is connected with the discharging end of the feeding hopper;
and the stirring end of the stirring device is arranged in the mixing pipe.
2. The leaching test system for contaminated soil remediation according to claim 1, further comprising:
the air pipe, tracheal inlet end lets in high-pressure air, tracheal end of giving vent to anger with the inlet end of hybrid tube links to each other, the feed end of hybrid tube is located between the inlet end of hybrid tube and the discharge end of hybrid tube.
3. The leaching test system for contaminated soil remediation according to claim 2, further comprising:
the air pressure detection device is arranged on the air pipe, and the detection end of the air pressure detection device is arranged in the air pipe.
4. The leaching test system for contaminated soil remediation according to claim 2, wherein the leaching test system further comprises:
the connecting cover is connected with the air outlet end of the air pipe, and the connecting cover is sleeved on the air inlet end of the mixing pipe in a threaded manner;
the first flange is arranged on the discharge end of the feed hopper;
the second flange is arranged on the feeding end of the mixing pipe, and the first flange is connected with the second flange through bolts.
5. The leaching test system for contaminated soil remediation according to claim 2, wherein the agitation device comprises:
the stirring shaft is rotationally arranged in the mixing pipe;
the helical blade is sleeved on the stirring shaft, and a discharge channel is formed between the outer circumferential surface of the helical blade and the pipe wall of the mixing pipe;
the driving piece, the driving piece sets up on the hybrid tube, the driving piece with the (mixing) shaft transmission links to each other, the driving piece drive the (mixing) shaft is rotatory.
6. The leaching test system for contaminated soil remediation according to claim 5, wherein said helical blade comprises:
the first blade is sleeved on the stirring shaft, and the spiral advancing direction of the first blade faces to the discharge end of the mixing pipe from the feed end of the mixing pipe;
the second blade is sleeved on the stirring shaft, the spiral advancing direction of the second blade is towards the feeding end of the mixing pipe from the discharging end of the mixing pipe, and a hedging cavity is formed between the first blade and the second blade.
7. The leaching test system for contaminated soil remediation according to any one of claims 1 to 6, wherein said leaching test system further comprises:
the lower sieve discharge end of the first sieving device is movably connected with the feed end of the feed hopper, and the upper sieve discharge end of the first sieving device is connected with the first storage area;
the first splash guard is arranged at the feeding end of the feeding hopper, and the undersize discharging end of the first screening device is inserted into the first splash guard.
8. The leaching test system for contaminated soil remediation according to any one of claims 1 to 6, wherein the leaching test system further comprises:
the feeding end of the second screening device is movably connected with the discharging end of the mixing pipe, and the oversize discharging end of the second screening device is connected with a second storage area;
the second splash guard is arranged at the feeding end of the second screening device, and the discharging end of the mixing pipe is inserted into the second splash guard;
and the feed end of the solid-liquid separation device is movably connected with the undersize discharge end of the second screening device, the solid discharge end of the solid-liquid separation device is connected with the third storage area, and the liquid discharge end of the solid-liquid separation device is connected with the fourth storage area.
9. The leaching test system for contaminated soil remediation according to any one of claims 1 to 6, wherein the mixing pipe is provided with an access opening near the discharge end of the mixing pipe, and the access opening is provided with a cover plate.
10. The leaching test system for contaminated soil remediation according to any one of claims 1 to 6, wherein said leaching test system further comprises:
the mixing pipe is inserted in the mounting hole, and the limiting blocks are clamped in the limiting grooves.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210711833.3A CN115228911B (en) | 2022-06-22 | 2022-06-22 | Leaching test system for contaminated soil remediation |
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| CN202210711833.3A CN115228911B (en) | 2022-06-22 | 2022-06-22 | Leaching test system for contaminated soil remediation |
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| CN115228911B (en) | 2024-02-09 |
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Effective date of registration: 20221104 Address after: 102629 nandazhuang Village East, Huangcun Town, Daxing District, Beijing Applicant after: CHINA CHEMICAL ENGINEERING HEAVY MECHANIZATION Co.,Ltd. Applicant after: China National Chemical Engineering Group Co.,Ltd. Address before: 102629 nandazhuang Village East, Huangcun Town, Daxing District, Beijing Applicant before: CHINA CHEMICAL ENGINEERING HEAVY MECHANIZATION Co.,Ltd. |
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