CN112871640B - Soil screening plant for soil remediation - Google Patents
Soil screening plant for soil remediation Download PDFInfo
- Publication number
- CN112871640B CN112871640B CN202110089528.0A CN202110089528A CN112871640B CN 112871640 B CN112871640 B CN 112871640B CN 202110089528 A CN202110089528 A CN 202110089528A CN 112871640 B CN112871640 B CN 112871640B
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- CN
- China
- Prior art keywords
- soil
- fixed
- elastic
- crushing barrel
- filter screen
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2/00—Crushing or disintegrating by gyratory or cone crushers
- B02C2/10—Crushing or disintegrating by gyratory or cone crushers concentrically moved; Bell crushers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
- B02C2023/165—Screen denying egress of oversize material
Abstract
The invention relates to the field of soil remediation, in particular to a soil screening device for soil remediation, which comprises a crushing cylinder, a motor, a stirring block, an elastic grinding piece, a screening assembly and a transmission shaft, wherein the crushing cylinder is arranged on the crushing cylinder; the transmission shaft is vertically arranged in the crushing barrel and is driven by the motor to rotate; the elastic grinding assembly comprises a fixed outer ring, a fixed inner ring and a plurality of elastic strips, the fixed outer ring is fixed on the crushing barrel, and the fixed inner ring is positioned below the fixed outer ring and is smaller than the fixed outer ring; the upper end of each elastic strip is connected with a fixed outer ring, the lower end of each elastic strip is connected with a fixed inner ring, and the projection of each elastic strip in the horizontal plane is spiral; the stirring block is arranged on the transmission shaft, is positioned in an annular space surrounded by the elastic strips, and interacts with the elastic strips to crush blocky soil when rotating along with the transmission shaft, so that the elastic strips extend under the extrusion of the blocky soil, the fixed inner ring rotates, and the stirring block recovers part or all of the contraction when the pressure is reduced or disappears; the screening assembly receives and filters the crushed blocky soil.
Description
Technical Field
The invention relates to the field of soil remediation, in particular to a soil screening device for soil remediation.
Background
Soil remediation refers to the physical, chemical and biological processes used to transfer, absorb, degrade and transform pollutants in soil to reduce their concentration to acceptable levels, or to transform toxic and harmful pollutants into harmless materials. There is the separation restoration method among the current physical remediation, sieves out the heavy metal pollutant in the soil through the screen cloth, but soil easily wets the caking, and cubic soil can block up the screen cloth mesh when the screening, can treat among the prior art and filter soil and carry out breakage in advance, but crushing process can lead to unloading speed slow, influences screening efficiency. Therefore, there is a need for a soil screening device that increases the discharge rate during the crushing process.
Disclosure of Invention
The invention provides a soil screening device for soil restoration, which aims to solve the problem that the existing soil screening device is slow in material discharging in the crushing process.
The soil screening device for soil remediation adopts the following technical scheme:
a soil screening device for soil restoration comprises a crushing barrel, a motor, a stirring block, an elastic grinding piece, a screening assembly and a transmission shaft; the transmission shaft is vertically arranged in the crushing barrel and is driven by the motor to rotate; the elastic grinding component is arranged outside the stirring block and comprises a fixed outer ring, a fixed inner ring and an elastic strip, the fixed outer ring is fixed on the crushing barrel, and the fixed inner ring is positioned below the fixed outer ring, is smaller than the fixed outer ring and is coaxial with the fixed outer ring; the elastic strips are uniformly distributed along the circumferential direction of the fixed outer ring, the upper end of each elastic strip is connected with the fixed outer ring, the lower end of each elastic strip is connected with the fixed inner ring, the projection of each elastic strip in the horizontal plane is spiral, and the spiral direction of the projection in the horizontal plane from inside to outside is the same as the rotation direction of the transmission shaft; the stirring block is arranged at the upper end of the transmission shaft and is positioned in an annular space surrounded by the elastic strips, and the outer peripheral wall of the stirring block is provided with stirring fillets so as to crush blocky soil under the interaction with the elastic strips when rotating along with the transmission shaft, so that the elastic strips stretch under the extrusion of the blocky soil, the fixed inner ring rotates, and the stirring fillet recovers part or all of the stirring fillet to shrink when the pressure is reduced or disappears; the screening assembly is arranged below the elastic grinding assembly to receive crushed massive soil for filtering.
Optionally, the stirring fillet has a plurality ofly, all is the heliciform and distributes and stirring piece periphery wall, and every stirring fillet is the same with the spiral direction of elastic strip or opposite.
Optionally, the screening assembly is mounted to the fixed inner ring to synchronously dither with the fixed inner ring.
Optionally, a slag filtering groove communicated with the inside of the crushing cylinder is arranged outside the crushing cylinder, and the slag filtering groove is positioned below the screening assembly; the screening component comprises a filter screen and an elastic rib, wherein the center of the filter screen is arranged in the fixed inner ring and is in a concave shape or horizontal arrangement with the lower center and the higher edge; the outer circumference of the filter screen is provided with a filter screen outer ring which is always attached to the inner wall of the crushing barrel and is positioned at the upper side of an inlet of the slag filtering groove; the fixed laminating filter screen surface of elasticity muscle sets up, and elasticity muscle the inner upwards extends and is fixed in fixed inner ring, and the outer end is along the radial extension of filter screen to filter screen outer lane edge, and the filter residue on the filter screen accumulation outer lane moves down when to basis weight, and the filter screen becomes central height, and the arch that the edge is low, filter residue on the filter screen arrange to the filter residue inslot along the import of filter residue groove, and the initial condition is resumeed to back filter screen under the effect of elasticity muscle.
Optionally, the stirring block is provided at its upper end with guide vanes to urge soil into between the stirring block and the resilient strip while rotating with the stirring block.
Optionally, the bottom of the crushing barrel is provided with a material guide plate, the material guide plate is arranged in an inclined mode, and a material outlet is formed in the position, connected with the lowest position of the material guide plate, of the side wall of the crushing barrel.
The upper end of the crushing barrel is provided with a feed hopper which is funnel-shaped.
Optionally, the crushing cylinder comprises an upper crushing cylinder and a lower crushing cylinder, the upper crushing cylinder is positioned right above the lower crushing cylinder and is arranged at an interval with the lower crushing cylinder to define an inlet of the slag filtering tank; the inner side surface of the slag filtering groove is provided with an open annular groove, the upper end of the slag filtering groove is fixed on the upper crushing barrel, and the lower end of the slag filtering groove is fixed on the lower crushing barrel.
Optionally, the filter residue tank bottom inclines, and the lowest position of filter residue tank bottom is provided with the filter residue export.
Optionally, a motor protective shell is arranged outside the motor, and a motor dust guard is arranged above the motor protective shell.
The invention has the beneficial effects that: when the soil screening device for soil restoration is used for crushing blocky soil, the elastic strip protrudes outwards under the pushing of the blocky soil and deforms in the circumferential direction, and meanwhile, the elastic strip deforms in the vertical direction under the limitation of the fixed outer ring and the fixed inner ring, so that the elastic strip shakes in the three-dimensional direction when the pressure applied to the elastic strip is reduced or disappears, the blanking speed is improved, and the soil is prevented from being accumulated between the elastic strip and the stirring block; the elastic strip drives the filter screen to shake through the fixed inner ring while shaking, so that the filter efficiency is prevented from being influenced after filter residues are accumulated on the filter screen; along with the accumulation of filter residues on the filter screen, the shaking resistance of the elastic strips is increased, the shaking amplitude is reduced, the blanking speed is reduced, and the waste caused by the blockage of normal soil by the filter residues is reduced; the filter screen is in a concave shape with a low center and a high edge, and becomes an arch with a high center and a low edge after filter residues are accumulated with a certain weight, so that the filter residues are automatically discharged along the arch surface without being cleaned by personnel; the filter screen recovers deformation under the action of the elastic ribs, and repeated utilization is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described 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 is a schematic view of the overall structure of an embodiment of a soil screening device for soil remediation according to the present invention;
FIG. 2 is an exploded view of the overall structure of an embodiment of a soil screening device for soil remediation in accordance with the present invention;
FIG. 3 is a schematic view of a normal filtration state of an embodiment of a soil screening device for soil remediation according to the present invention;
FIG. 4 is a schematic illustration of a screen discharge state of an embodiment of a soil screening device for soil remediation according to the present invention;
FIG. 5 is a schematic illustration of an embodiment of a soil screening device for soil remediation according to the present invention with the resilient grinding assembly and the screening assembly in a normal filtering state;
FIG. 6 is a schematic view of an embodiment of a soil screening device for soil remediation according to the present invention with the resilient grinding assembly and the screen assembly in a screen discharge state;
in the figure: 1. a feed hopper; 11. a crushing cylinder; 12. a motor protection shell; 121. a motor dust guard; 13. a slag filtering groove; 132. fixing the ear; 14. a material outlet; 15. a residue outlet; 21. stirring blocks; 211. a guide blade; 212. stirring the fillets; 22. an elastomeric abrasive component; 221. fixing the outer ring; 222. a fixing hole; 223. an elastic strip; 23. a screen assembly; 231. a filter screen outer ring; 232. filtering with a screen; 233. an elastic rib; 234. fixing the inner ring; 24. a material guide plate; 25. a motor; 251. a drive shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the soil screening device for soil remediation according to the present invention, as shown in fig. 1 to 6, includes a crushing cylinder 11, a motor 25, a stirring block 21, an elastic grinding member 22, a screening assembly 23, a transmission shaft 251;
the transmission shaft 251 is vertically arranged in the crushing barrel 11 and driven by the motor 25 to rotate;
the elastic grinding component 22 is arranged outside the stirring block 21 and comprises a fixed outer ring 221, a fixed inner ring 234 and elastic strips 223, the fixed outer ring 221 is provided with a plurality of fixed holes 222, the fixed outer ring 221 is fixed on the crushing cylinder 11 through the fixed holes 222, and the fixed inner ring 234 is positioned below the fixed outer ring 221, is smaller than the fixed outer ring 221 and is coaxial with the fixed outer ring 221; the plurality of elastic strips 223 are uniformly distributed along the circumferential direction of the fixed outer ring 221, the upper end of each elastic strip 223 is connected with the fixed outer ring 221, the lower end of each elastic strip 223 is connected with the fixed inner ring 234, the projection of each elastic strip 223 in the horizontal plane is spiral, and the spiral direction of the projection in the horizontal plane from inside to outside is the same as the rotating direction of the transmission shaft 251;
the stirring block 21 is arranged at the upper end of the transmission shaft 251 and is positioned in an annular space surrounded by the elastic strips 223, the stirring fillets 212 are arranged on the outer peripheral wall of the stirring block 21, so that the stirring block interacts with the elastic strips 223 to crush blocky soil when rotating along with the transmission shaft 251, the elastic strips 223 extend under the extrusion of the blocky soil, the fixed inner ring 234 rotates along the same direction as the rotation direction of the transmission shaft 251, and the stirring block partially or completely contracts when the pressure is reduced or disappears;
In this embodiment, a plurality of stirring fillets 212 are distributed in a spiral shape and are arranged on the outer peripheral wall of the stirring block 21, and the spiral direction of each stirring fillet 212 is the same as that of each elastic strip 223, so as to increase the acting force between the stirring fillet 212 and the elastic strip 223; or the spiral direction of each mixing fillet 212 is opposite to that of the elastic strip 223, so as to promote the soil between the mixing fillet 212 and the elastic strip 223 to move upwards and avoid the soil from accumulating below the gap between the mixing fillet 212 and the elastic strip 223.
In the embodiment, a slag filtering groove 13 communicated with the inside of the crushing barrel 11 is arranged outside the crushing barrel 11, and the slag filtering groove 13 is positioned below the screening assembly 23; the screening assembly 23 comprises a filter screen 232 and an elastic rib 233, wherein the center of the filter screen 232 is arranged on the fixed inner ring 234 and is in a concave shape with a low center and a high edge or is horizontally arranged; a filter screen outer ring 231 is arranged on the outer circumference of the filter screen 232, and the filter screen outer ring 231 is always attached to the inner wall of the crushing barrel 11 and is positioned on the upper side of an inlet of the filter residue groove 13; the fixed laminating filter screen 232 surface of elasticity muscle 233 sets up, the inner upwards extends and is fixed in fixed inner ring 234 of elasticity muscle 233, the outer end is along filter screen 232 radial extension to filter screen 232 outer lane edge, outer lane downstream when the filter residue on the filter screen 232 accumulates to a basis weight, filter screen 232 becomes central height, the arch that the edge is low, filter residue on the filter screen 232 is arranged to the filter residue inslot 13 in filter screen 232 along filter screen 232 import through filter residue groove 13, back filter screen 232 resumes initial condition under the effect of elasticity muscle 233.
In the present embodiment, the stirring block 21 is provided at the upper end thereof with a guide blade 211 to urge soil into between the stirring block 21 and the elastic bar 223 while rotating with the stirring block 21.
In this embodiment, the bottom of the crushing barrel 11 is provided with a material guide plate 24, the material guide plate 24 is obliquely arranged, and the position of the side wall of the crushing barrel 11, which is connected with the lowest position of the material guide plate 24, is provided with a material outlet 14.
In this embodiment, the crushing cylinder 11 includes an upper crushing cylinder and a lower crushing cylinder, the upper crushing cylinder is located right above the lower crushing cylinder and is spaced from the lower crushing cylinder to define an inlet of the slag filtering tank 13; the inner side surface of the slag filtering groove 13 is provided with an open annular groove, the slag filtering groove 13 is provided with a fixing lug 132 for installation, the upper end of the slag filtering groove 13 is fixed on the upper crushing barrel through the fixing lug 132, and the lower end of the slag filtering groove 13 is fixed on the lower crushing barrel through the fixing lug 132.
In this embodiment, the bottom of the slag filtering groove 13 is inclined, and the lowest part of the bottom of the slag filtering groove 13 is provided with a slag outlet 15.
In this embodiment, the upper end of the crushing barrel 11 is provided with a feeding hopper 1, and the feeding hopper 1 is funnel-shaped.
In the present embodiment, the motor 25 is externally provided with the motor protection case 12, and the motor dust guard 121 is provided above.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The utility model provides a soil screening plant for soil remediation which characterized in that: comprises a crushing cylinder, a motor, a stirring block, an elastic grinding piece, a screening component and a transmission shaft; the transmission shaft is vertically arranged in the crushing barrel and is driven by the motor to rotate; the elastic grinding component is arranged outside the stirring block and comprises a fixed outer ring, a fixed inner ring and an elastic strip, the fixed outer ring is fixed on the crushing barrel, and the fixed inner ring is positioned below the fixed outer ring, is smaller than the fixed outer ring and is coaxial with the fixed outer ring; the elastic strips are uniformly distributed along the circumferential direction of the fixed outer ring, the upper end of each elastic strip is connected with the fixed outer ring, the lower end of each elastic strip is connected with the fixed inner ring, the projection of each elastic strip in the horizontal plane is spiral, and the spiral direction of the projection in the horizontal plane from inside to outside is the same as the rotation direction of the transmission shaft; the stirring block is arranged at the upper end of the transmission shaft and is positioned in an annular space surrounded by the elastic strips, and the outer peripheral wall of the stirring block is provided with stirring fillets so as to crush blocky soil under the interaction with the elastic strips when rotating along with the transmission shaft, so that the elastic strips stretch under the extrusion of the blocky soil, the fixed inner ring rotates, and the stirring fillet recovers part or all of the stirring fillet to shrink when the pressure is reduced or disappears; the screening and filtering assembly is arranged below the elastic grinding assembly to receive and filter the crushed blocky soil, a filter slag groove communicated with the interior of the crushing cylinder is arranged outside the crushing cylinder, and the filter slag groove is positioned below the screening and filtering assembly; the screening component comprises a filter screen and an elastic rib, wherein the center of the filter screen is arranged in the fixed inner ring and is in a concave shape or horizontal arrangement with the lower center and the higher edge; the outer circumference of the filter screen is provided with a filter screen outer ring which is always attached to the inner wall of the crushing barrel and is positioned at the upper side of an inlet of the slag filtering groove; the fixed laminating filter screen surface of elasticity muscle sets up, the inner upwards extends and is fixed in fixed inner ring of elasticity muscle, the outer end is along filter screen radial extension to filter screen outer lane edge, outer lane downstream when filter residue on the filter screen accumulates to a basis weight, the filter screen becomes central height, the arch that the edge is low, filter residue on the filter screen is arranged to the filter residue inslot along the import of filter residue groove, the initial state is resumeed to back filter screen under the effect of elasticity muscle, the stupefied strip of stirring has a plurality ofly, all be the heliciform and distribute and stir a periphery wall, every stirs stupefied strip and the screw direction homogeneous phase of elasticity strip or opposite.
2. A soil screening device for soil remediation according to claim 1, wherein: the screening assembly is arranged on the fixed inner ring and synchronously shakes along with the fixed inner ring.
3. A soil screening device for soil remediation according to claim 1, wherein: the upper end of the stirring block is provided with a guide blade to promote soil to enter between the stirring block and the elastic strip while rotating along with the stirring block.
4. A soil screening device for soil remediation according to claim 1, wherein: the bottom of the crushing barrel is provided with a material guide plate, the material guide plate is arranged in an inclined mode, and a material outlet is formed in the position, connected with the lowest position of the material guide plate, of the side wall of the crushing barrel.
5. A soil screening device for soil remediation according to claim 1, wherein: the upper end of the crushing barrel is provided with a feed hopper which is funnel-shaped.
6. A soil screening device for soil remediation according to claim 1, wherein: the crushing barrel comprises an upper crushing barrel and a lower crushing barrel, the upper crushing barrel is positioned right above the lower crushing barrel and is arranged at an interval with the lower crushing barrel so as to limit an inlet of the slag filtering tank; the inner side surface of the slag filtering groove is provided with an open annular groove, the upper end of the slag filtering groove is fixed on the upper crushing barrel, and the lower end of the slag filtering groove is fixed on the lower crushing barrel.
7. A soil screening device for soil remediation according to claim 6, wherein: the bottom of the filter residue groove is obliquely arranged, and the lowest part of the bottom of the filter residue groove is provided with a filter residue outlet.
8. A soil screening device for soil remediation according to claim 1, wherein: the motor is provided with the motor protective housing outward, and the top is provided with the motor dust guard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110089528.0A CN112871640B (en) | 2021-01-22 | 2021-01-22 | Soil screening plant for soil remediation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110089528.0A CN112871640B (en) | 2021-01-22 | 2021-01-22 | Soil screening plant for soil remediation |
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| Publication Number | Publication Date |
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| CN112871640A CN112871640A (en) | 2021-06-01 |
| CN112871640B true CN112871640B (en) | 2022-04-19 |
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| CN202110089528.0A Active CN112871640B (en) | 2021-01-22 | 2021-01-22 | Soil screening plant for soil remediation |
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| CN115007297B (en) * | 2022-06-24 | 2023-07-18 | 内蒙古民族大学 | Negative pressure laminating formula medicinal material that covers is processing apparatus that circles round |
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Denomination of invention: A soil screening device for soil remediation Effective date of registration: 20221123 Granted publication date: 20220419 Pledgee: Agricultural Bank of China Limited Yixing branch Pledgor: JIANGSU CHUANGXIN ENVIRONMENT ENGINEERING CO.,LTD. Registration number: Y2022320010721 |
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