CN109759221A - A kind of screening mechanism suitable for heavy-metal contaminated soil reparation - Google Patents
A kind of screening mechanism suitable for heavy-metal contaminated soil reparation Download PDFInfo
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- CN109759221A CN109759221A CN201910085867.4A CN201910085867A CN109759221A CN 109759221 A CN109759221 A CN 109759221A CN 201910085867 A CN201910085867 A CN 201910085867A CN 109759221 A CN109759221 A CN 109759221A
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Abstract
The invention discloses a kind of screening mechanisms suitable for heavy-metal contaminated soil reparation, including passage and multiple screening slots with vibration source, screening slot includes push plate, sieve chassis, power device and end face, power device is for pushing push plate along screening bobbin movement, sieving chassis includes the Screening Network on upper layer and the splicing plate of lower layer, Screening Network, end face and push plate constitute semi-enclosed screening chamber, Screening Network, splicing plate, end face and push plate constitute closed guide chamber, the part that end face corresponds to guide chamber is provided with discharge port, the push plate of next screening slot is overlapped on the screening chassis an of screening slot and forms hierarchic structure, the top of first screening slot in hierarchic structure is arranged in passage.A kind of screening mechanism suitable for heavy-metal contaminated soil reparation of the invention, has the advantages that efficient.
Description
Technical field
The present invention relates to soil remediation more particularly to a kind of screening mechanisms suitable for heavy-metal contaminated soil reparation.
Background technique
In the prior art, soil is the material base of the sustainable development of socio-economy, and protecting soil environment is to promote life
The important content of state civilization construction.
In the pollutant of serious pollution, heavy metal is primary pollution source.Due to mankind's activity, the trace meter in soil is first
The content of element in the soil is more than background value, and excess deposition causes the too high levels of heavy metal-polluted soil, causes heavy metal-polluted soil dirty
Dye.Heavy metal refers to the metal that specific gravity is equal to or more than 5.0, mainly includes the bio-toxicities such as cadmium, mercury, lead, chromium and metalloid arsenic
The elements such as significant element, and the zinc, copper, nickel that have certain toxicity.These pollution elements are mainly from pesticide, waste water, sludge
With atmospheric sedimentation etc., if cadmium, lead contamination are mainly from discharge and automobile exhaust gas sedimentation is smelted, mercury is mainly from mercury-containing waste water, arsenic
Then it is widely used as insecticide, fungicide, rat poison and herbicide.Excessive heavy metal can cause physiological function of plants disorder, battalion
Imbalance is supported, the elements such as cadmium, mercury concentration coefficient in crop grain is higher, even more than food hygienic standard, nor affects on crop
Growth, development and yield, furthermore mercury, arsenic can weaken and inhibit nitrification in soil, amonifying bacteria activity, influence Nitrogen supplying.Weight
Metal pollutant mobility very little in the soil, is not microbial degradation, after entering human body by food chain, potential hazard pole
Greatly.Stone grand style and Tailings Dam are not yet established in some mines in exploitation, and barren rock and tailing are arbitrarily stacked, and cause in tailing rich in hardly possible
The heavy metal of solution enters soil, and remaining metal waste residue with rainwater enters ground water regime after ore processing in addition, causes serious
Heavy metal pollution of soil.Industrial 10 kinds of metallic elements that have for being really divided into heavy metal: copper, lead, zinc, tin, nickel, cobalt, antimony,
Mercury, cadmium and bismuth.And for the angle of soil-plant system, international educational circles thinks, only the elements such as cadmium, cobalt, selenium to animal and
The greatest risk that human health causes damages.Human health is caused to be damaged because of food chain, mainly cadmium and selenium.
The soil remediation method of current main-stream is chemical harnessing, application No. is CN201810086251.4, entitled one kind
A kind of restorative procedure is disclosed in the elution processing method of heavy-metal contaminated soil, by being eluted soil to reach soil
It repairs, finds in actual use, if blocking meeting of soil hardening is so that elution effect reduction, furthermore soil itself before elution
Contained moisture can also make first time elution effect deviation occur and then influence the effect of subsequent soil remediation.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of sieves for being efficiently suitable for heavy-metal contaminated soil reparation
Sub-agencies.
The present invention is realized by following technical solution:
A kind of screening mechanism suitable for heavy-metal contaminated soil reparation, including passage and multiple with vibration source
Screening slot, screening slot include push plate, screening chassis, power device and end face, and power device is for pushing push plate along screening bottom
Disk movement, screening chassis include the Screening Network on upper layer and the splicing plate of lower layer, and Screening Network, end face and push plate constitute semiclosed
Screening chamber, Screening Network, splicing plate, end face and push plate constitute closed guide chamber, and the part that end face correspond to guide chamber is arranged
There is discharge port, the push plate of next screening slot is overlapped on the screening chassis an of screening slot and forms hierarchic structure, passage
The top of first screening slot in hierarchic structure is set.
Preferably, the two sides of push plate are provided with the flanging for playing guiding and dustproof effect.
Preferably, splicing plate is provided with lug boss along away from the direction of screening chamber, is provided on flanging and raised portion fits
Groove, the slot bottom of groove is overlapped on lug boss for limiting the initial position of splicing plate.
Preferably, push plate pushes the stroke B of lower edge screening bobbin movement and the cross-sectional length C on screening chassis in power device
Meet following relationship, B >=C.
Preferably, Screening Network is provided with sieve pore, and the size and Screening Network of sieve pore are apart from passage apart from direct ratio.
Preferably, power device is cylinder, oil cylinder or motor.
Preferably, vibrator is provided on passage.
Preferably, the included angle A of plane locating for push plate and screening chassis meets following relationship, and 90 °≤A≤135 °.
Beneficial effect is: compared with prior art, a kind of screening mechanism suitable for heavy-metal contaminated soil reparation passes through
Passage and multiple screening slots with vibration source are set, and screening slot includes push plate, screening chassis, power device and end
Face, for power device for pushing push plate along screening bobbin movement, screening chassis includes the Screening Network on upper layer and the splicing of lower layer
Plate, Screening Network, end face and push plate constitute semi-enclosed screening chamber, and Screening Network, splicing plate, end face and push plate constitute closed
Guide chamber, the part that end face corresponds to guide chamber are provided with discharge port, and the push plate of next screening slot is overlapped on a screening slot
Screening chassis on form hierarchic structure, the top of first screening slot in hierarchic structure is arranged in passage, each screening
The soil screening of slot, which finishes, to be pushed into next screening slot by push plate after a certain period of time and continues to sieve, and guarantees soil into corresponding
In discharge port, each screening slot be it is relatively independent, the soil of passage can persistently fall and continue complete be sieving through
Journey is conducive to extensive continuous running, so that entire screening process is efficient.
Detailed description of the invention
Below in conjunction with attached drawing, specific embodiments of the present invention will be described in further detail, in which:
Fig. 1 is the screening mechanism structural schematic diagram suitable for heavy-metal contaminated soil reparation；
Fig. 2 is the D direction view of Fig. 1；
Fig. 3 is that state embodiment is released in the push plate of component screening slot of the present invention；
Fig. 4 is the flanging top view of component push plate of the present invention.
Specific embodiment
As shown in Figures 1 to 4, a kind of screening mechanism suitable for heavy-metal contaminated soil reparation, including conveying soil into
Enter the passage 21 and multiple screening slots 22 with vibration source (not marking in figure) of screening mechanism, screening slot 22 includes push plate
221, chassis 222, power device 223 and end face 226 are sieved, power device 223 can be cylinder, oil cylinder or motor, power
Device 223 for pushing push plate 221 to move along screening chassis 222, the Screening Network 224 on screening chassis 222 including upper layer and under
The splicing plate 225 of layer, Screening Network 224, end face 226 and push plate 221 constitute semi-enclosed screening chamber 227, and screening chamber 227 is caught
The soil fallen from passage 21, sustained vibration under the action of vibration source of screening slot 22, soil enter from Screening Network 224 by sieving
Subnetting 224, splicing plate 225, end face 226 and push plate 221 constitute closed guide chamber 228, the corresponding guide chamber 228 in end face 226
Part be provided with discharge port 229, the soil filtered out, which enters to classify from discharge port 229 after guide chamber 228, to be discharged, along screening machine
2 material transmission direction, the push plate 221 of next screening slot 22 are overlapped on shape on the screening chassis 222 an of screening slot 22
At hierarchic structure, the top of first screening slot 22 in hierarchic structure is arranged in passage 21, the soil of each screening slot 22
Screening finishes to be pushed into next screening slot 22 and continues to sieve by push plate 221 after a certain period of time, guarantee soil enter it is corresponding go out
In material mouth 229, each screening slot 22 be it is relatively independent, the soil of passage 21 can persistently fall and continue complete sieve
Divide process, be conducive to extensive continuous running, so that entire production process is efficient.
Preferable embodiment, as shown in figure 3, the two sides of push plate 221 are provided with flanging 221a, such as can be by push plate 221
Both ends bending is in the shape of falling Qian, and push plate 221 is on the one hand made to move along chassis 222 is sieved and play guiding role, while can also be to prevent
After thrust plate 221 is released, soil enters inside device from the gap on push plate 221 and screening chassis 222, plays dustproof effect.
Preferable embodiment, shown as shown in Figure 1, Figure 3 and Figure 4, splicing plate 225 is arranged along away from the direction of screening chamber 227
There is lug boss 225a, the groove 221b with lug boss 225a cooperation is provided on flanging 221a, the slot bottom 221c of groove 221b takes
It connects on lug boss 225a for limiting the initial position of splicing plate 225, is transported the base position as splicing plate 225 each time
Dynamic starting point is convenient for Operation and Maintenance.
Preferable embodiment, shown as shown in Figure 1, Figure 3 and Figure 4, push plate 221 pushes lower edge to sieve bottom in power device 223
The cross-sectional length C of stroke B and screening chassis 222 that disk 222 moves meet following relationship, B >=C, to guarantee push plate each time
221, which can will sieve the soil in chamber 227, is all pushed into next screening chamber 227, is finally completed the gradually screening of soil.
Preferable embodiment, as shown in Figures 1 to 4, Screening Network 224 are provided with sieve pore 224a, the size of sieve pore 224a
With Screening Network 224 apart from passage 21 apart from direct ratio, it is ensured that thin soil first sifts out, and prevents thickness from mixing.
Preferable embodiment prevents soil from sticking in guide as shown in Figure 1, being provided with vibrator 211 on passage 21
In pipe 21.
Preferable embodiment, as shown in Figure 1, push plate 221 and screening chassis 222 locating for plane included angle A meet it is following
Relationship, 90 °≤A≤135 °, A crosses conference and makes screening chamber 227 short, and volume is too small, and A is too small to be easy so that soil is stuck in screening
In chamber 227, it is not easy to the release of push plate 221.
The above embodiments are merely illustrative of the technical solutions of the present invention and is not intended to limit it, all without departing from the present invention
Any modification of spirit and scope or equivalent replacement, shall fall within the scope of the technical solution of the present invention.
Claims (8)
1. a kind of screening mechanism suitable for heavy-metal contaminated soil reparation, it is characterised in that: including passage (21) and more
A screening slot (22) with vibration source, the screening slot (22) include push plate (221), screening chassis (222), power device
(223) and end face (226), the power device (223) are used to push the push plate (221) along the screening chassis (222)
Movement, screening chassis (222) includes the Screening Network (224) on upper layer and the splicing plate (225) of lower layer, the Screening Network
(224), the end face (226) and the semi-enclosed screening chamber (227) of the push plate (221) composition, the Screening Network (224),
The splicing plate (225), the end face (226) and the push plate (221) constitute closed guide chamber (228), the end face
(226) part of the corresponding guide chamber (228) is provided with discharge port (229), the push plate of next screening slot (22)
(221) it is overlapped on the screening chassis (222) of a screening slot (22) and forms hierarchic structure, the passage (21) sets
Set the top of first screening slot (22) in hierarchic structure.
2. the screening mechanism according to claim 1 suitable for heavy-metal contaminated soil reparation, it is characterised in that: described to push away
The two sides of plate (221) are provided with the flanging (221a) for playing guiding and dustproof effect.
3. the screening mechanism according to claim 2 suitable for heavy-metal contaminated soil reparation, it is characterised in that: described to connect
Flitch (225) is provided with lug boss (225a) along away from the direction of screening chamber (227), is provided on the flanging (221a)
With the groove (221b) of the lug boss (225a) cooperation, the slot bottom (221c) of the groove (221b) is overlapped on the lug boss
For limiting the initial position of the splicing plate (225) on (225a).
4. the screening mechanism according to any one of claims 1 to 3 suitable for heavy-metal contaminated soil reparation, feature exist
In: the push plate (221) the power device (223) push the stroke B of screening chassis (222) movement described in lower edge with it is described
The cross-sectional length C of screening chassis (222) meets following relationship, B >=C.
5. the screening mechanism according to any one of claims 1 to 3 suitable for heavy-metal contaminated soil reparation, feature exist
In: the Screening Network (224) is provided with sieve pore (224a), the size and the Screening Network (224) distance of the sieve pore (224a)
The passage (21) apart from direct ratio.
6. the screening mechanism according to any one of claims 1 to 3 suitable for heavy-metal contaminated soil reparation, feature exist
In: the power device (223) is cylinder, oil cylinder or motor.
7. the screening mechanism according to any one of claims 1 to 3 suitable for heavy-metal contaminated soil reparation, feature exist
In: vibrator (211) are provided on the passage (21).
8. the screening mechanism according to any one of claims 1 to 3 suitable for heavy-metal contaminated soil reparation, feature exist
The included angle A of the plane locating for: the push plate (221) and screening chassis (222) meets following relationship, and 90 °≤A≤135 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910085867.4A CN109759221A (en) | 2019-01-29 | 2019-01-29 | A kind of screening mechanism suitable for heavy-metal contaminated soil reparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910085867.4A CN109759221A (en) | 2019-01-29 | 2019-01-29 | A kind of screening mechanism suitable for heavy-metal contaminated soil reparation |
Publications (1)
| Publication Number | Publication Date |
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| CN109759221A true CN109759221A (en) | 2019-05-17 |
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| CN201910085867.4A Pending CN109759221A (en) | 2019-01-29 | 2019-01-29 | A kind of screening mechanism suitable for heavy-metal contaminated soil reparation |
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| CN1785535A (en) * | 2005-12-21 | 2006-06-14 | 刘国柱 | Marrow removal machine of bagasse |
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| CN206810668U (en) * | 2017-06-23 | 2017-12-29 | 郑州西利康新材料有限公司 | A kind of classified filtering device of carborundum powder |
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| US4763794A (en) * | 1986-07-30 | 1988-08-16 | Billington Welding And Mfg. | Produce sorting apparatus |
| CN1785535A (en) * | 2005-12-21 | 2006-06-14 | 刘国柱 | Marrow removal machine of bagasse |
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| CN105457882A (en) * | 2015-12-10 | 2016-04-06 | 重庆勤发食品有限公司 | Potato screening device |
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| CN208098608U (en) * | 2018-01-29 | 2018-11-16 | 王宇浩 | Dual suspension specific gravity platform is without time difference swing arm cleaner |
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Application publication date: 20190517 |
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