CN113828511A - Device for vibrating and screening polluted soil - Google Patents
Device for vibrating and screening polluted soil Download PDFInfo
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- CN113828511A CN113828511A CN202111127838.3A CN202111127838A CN113828511A CN 113828511 A CN113828511 A CN 113828511A CN 202111127838 A CN202111127838 A CN 202111127838A CN 113828511 A CN113828511 A CN 113828511A
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- 238000012216 screening Methods 0.000 title claims abstract description 178
- 239000002689 soil Substances 0.000 title claims abstract description 150
- 239000000463 material Substances 0.000 claims abstract description 89
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 239000004744 fabric Substances 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000007723 transport mechanism Effects 0.000 claims description 5
- 238000005067 remediation Methods 0.000 abstract description 18
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 239000002245 particle Substances 0.000 description 64
- 238000011066 ex-situ storage Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 5
- 239000008187 granular material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001784 detoxification Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000003802 soil pollutant Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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Classifications
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- 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
- 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
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- 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
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- 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
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
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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
Abstract
The invention discloses a device for vibrating and screening contaminated soil, which belongs to the technical field of contaminated soil remediation and comprises a transmission mechanism, a first vibrating and screening mechanism and a second vibrating and screening mechanism, wherein the transmission mechanism comprises a supporting table, a first supporting frame and a conveying belt, the first supporting frame is provided with a first supporting end, a second supporting end and a middle conveying section, and the conveying belt is sleeved on a driving wheel through an inner side wall; the first vibration screening mechanism comprises a second support frame, a first screening box, a first vibration part and a first screen, the first screening box is provided with a first body, a first feeding hole, a first coarse material outlet, a first fine material outlet and a first hollow part, the first vibration part is arranged on the first body, and the second vibration screening mechanism comprises a fifth support end, a second screening box, a second vibration part and a second screen.
Description
Technical Field
The invention belongs to the technical field of contaminated soil remediation, and particularly relates to a device for contaminated soil vibration screening.
Background
The polluted soil remediation is a technical measure which reduces the concentration (activity) of soil pollutants by adopting physical, chemical, biological and ecological principles and adopting artificial regulation measures, so as to realize the harmlessness and stabilization of the pollutants and achieve the expected detoxification effect. The contaminated site remediation technology can be divided into an in-situ remediation technology and an ex-situ remediation technology according to remediation modes, wherein the ex-situ remediation technology refers to a technology of excavating contaminated soil from a contaminated position and then treating the contaminated soil within an original site range or after transportation.
At present, in the existing contaminated soil remediation technology, different methods are usually adopted to separate the contaminants from the soil according to the physical characteristics of soil media and contaminants, so as to facilitate the ex-situ remediation of the contaminated soil, for example, a magnetic separation means is adopted according to the magnetic characteristics, and a flotation method is adopted according to the surface characteristics. However, in the ex-situ remediation process of the contaminated soil, the contaminated soil contains large-particle soil blocks or gravels and the like in a large proportion, so that the particle size difference of the contaminated soil is large, the ex-situ remediation treatment conditions are difficult to meet, and the treatment efficiency is low.
As described above, the conventional contaminated soil remediation techniques have the technical problems that the particle size of contaminated soil varies greatly, it is difficult to satisfy the conditions for ex-situ remediation treatment, and the treatment efficiency is low.
Disclosure of Invention
The invention aims to solve the technical problems that the particle size difference of polluted soil is large, the requirements of ex-situ remediation treatment are difficult to meet, and the treatment efficiency is low.
In order to solve the technical problem, the invention provides a device for vibrating and screening polluted soil, which comprises: a transport mechanism, the transport mechanism comprising: a support table; the first support frame is provided with a first support end, a second support end and a middle conveying section, the first support frame is fixed on the support table through the first support end, the first support frame is fixed on the support table through the second support end so as to support the middle conveying section through the first support end and the second support end, the height of the first support end is smaller than that of the second support end, and the first support end and the second support end are respectively provided with a driving wheel; the conveying belt is sleeved on the driving wheel through an inner side wall and is enveloped at the peripheral part of the middle conveying section; a first vibratory screening mechanism, the first vibratory screening mechanism comprising: the second support frame is provided with a third support end, a fourth support end and an installation platform, the second support frame is fixed on the support platform through the third support end, the second support frame is fixed on the support platform through the fourth support end, and the installation platform is respectively connected with the first support end and the second support end; the first screen box is arranged on the mounting table and is provided with a first body, a first feeding hole, a first coarse material outlet, a first fine material outlet and a first hollow part, and the first hollow part is communicated with the first feeding hole, the first coarse material outlet and the first fine material outlet; a first vibration member provided to the first body; the first screen is arranged in the first hollow part, the first hollow part is divided into a first screening channel and a second screening channel by the first screen, the first screening channel is communicated with the first coarse material outlet, the second screening channel is communicated with the first fine material outlet, and the first screen is provided with a first screen hole penetrating through the first screening channel and the second screening channel; a second vibratory screening mechanism, the second vibratory screening mechanism comprising: a fifth support end fixed to the support table through the third support end and the fourth support end; the second screen box is arranged at the fifth supporting end and the first supporting end and is provided with a second body, a second feeding hole, a second coarse material outlet, a second fine material outlet and a second hollow part, the second feeding hole is communicated with the first fine material outlet, and the second hollow part is communicated with the second feeding hole, the second coarse material outlet and the second fine material outlet; a second vibration member provided to the second body; the second screen cloth, the second screen cloth install in the well kenozooecium of second, the second screen cloth will well kenozooecium is cut apart into third screening passageway and fourth screening passageway in the second, the third screening passageway with the second coarse fodder export communicates with each other, the fourth screening passageway with the second fine fodder export communicates with each other, the second screen cloth is provided with and runs through the second sieve mesh of third screening passageway with fourth screening passageway, the diameter of second sieve mesh is less than the diameter of first sieve mesh, the opening direction orientation of second fine fodder export the lateral wall of conveyor belt, in order to pass through conveyor belt will the qualified soil of second fine fodder export discharge is carried to second support end department.
Further, the inclination angle of the conveyor belt with respect to the support table is in the range of 0 ° to 30 °.
Further, the first vibration component comprises a first vibration motor and a first eccentric wheel, the first vibration motor is arranged on the first body, and the first eccentric wheel is arranged on the first body.
Further, the first screen is inclined at an angle in the range of 20 ° to 30 ° with respect to the support table.
Further, the diameter of the first screen hole ranges from 5cm to 6cm in value.
Further, the first vibratory screening mechanism further comprises: the discharge hopper is communicated with the first fine material outlet; and the guide groove is communicated with the discharge hopper, and the opening direction of the guide groove faces the second feed inlet.
Further, the second screen is inclined at an angle in the range of 20 ° to 30 ° with respect to the support table.
Further, the diameter of the second screen hole ranges from 2cm to 3 cm.
Further, the second vibration component comprises a second vibration motor and a second eccentric wheel, the second vibration motor is arranged on the second body, and the second eccentric wheel is arranged on the second body.
Further, the second fines outlet is located between the second coarse outlet and the fifth support end.
Has the advantages that:
the invention provides a device for vibrating and screening polluted soil, wherein a first supporting end and a second supporting end of a first supporting frame in a transmission mechanism are respectively fixed on a supporting table so as to support an intermediate conveying section through the first supporting end and the second supporting end, the height of the first supporting end is smaller than that of the second supporting end, a driving wheel is respectively arranged on the first supporting end and the second supporting end, and a conveying belt is sleeved on the driving wheel through an inner side wall and is enveloped at the peripheral part of the intermediate conveying section. The third supporting end and the fourth supporting end of the second supporting frame in the first vibration screening mechanism are respectively fixed on the supporting table, the mounting table is respectively connected with the first supporting end and the second supporting end, the first screen box is mounted on the mounting table, a first hollow portion and a first feed inlet in the first screen box are communicated with a first coarse material outlet and a first fine material outlet, the first vibration part is arranged on the first body, the first screen is mounted in the first hollow portion, the first hollow portion is divided into a first screening channel and a second screening channel by the first screen, the first screening channel and the first coarse material outlet are communicated with each other, the second screening channel and the first fine material outlet are communicated with each other, and the first screen is provided with a first screen hole penetrating through the first screening channel and the second screening channel. A fifth supporting end in the second vibrating screening mechanism is fixed on the supporting table through a third supporting end and a fourth supporting end, a second screen box is arranged on the fifth supporting end and the first supporting end, a second feeding hole and a first fine material outlet in the second screen box are mutually communicated, a second hollow part is mutually communicated with a second feeding hole, a second coarse material outlet and a second fine material outlet, a second vibrating part is arranged on the second body, a second screen is arranged in the second hollow part, the second hollow part is divided into a third screening channel and a fourth screening channel by the second screen, the third screening channel is mutually communicated with the second coarse material outlet, the fourth screening channel is mutually communicated with the second fine material outlet, the second screen is provided with a second screen hole penetrating through the third screening channel and the fourth screening channel, the diameter of the second screen hole is smaller than that of the first screen hole, and the opening direction of the second fine material outlet faces to the outer side wall of the conveying belt, so as to convey the qualified soil discharged from the second fines outlet to the second support end by means of the conveyor belt. Thus, the contaminated soil enters the first screening channel from the first feeding hole in the first screen box, the first screen is driven by the first vibrating component to carry out vibrating screening on the contaminated soil, the screened contaminated soil with smaller particle size is conveyed to the second feeding hole from the first screen hole through the second screening channel and the first fine material outlet, the contaminated soil with smaller particle size entering the third screening channel from the second feeding hole is subjected to vibrating screening through the second vibrating component and the second screen, the qualified soil with smaller particle size is conveyed to the conveying belt from the second screen hole through the fourth screening channel and the second fine material outlet, the qualified soil is conveyed to the second supporting end positioned at a higher position by the conveying belt to be thrown off, the contaminated soil with smaller particle size is screened out firstly, the qualified soil with smaller particle size is screened out from the contaminated soil with smaller particle size, and the qualified soil with smaller particle size is thrown off from a high position to further loosen soil particles, the screening efficiency can be improved, the screened qualified soil is uniform in particle size and does not contain large-particle soil blocks or gravels, and the condition of ex-situ remediation treatment is met. Thereby reached the granularity that reduces soil for pollute the difference of soil particle diameter less, can satisfy the condition of dystopy restoration processing, the high technological effect of screening treatment effeciency of polluting soil.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments 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 it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a first schematic diagram of an apparatus for vibratory screening of contaminated soil according to an embodiment of the present invention;
fig. 2 is a schematic diagram two of an apparatus for vibratory screening of contaminated soil according to an embodiment of the present invention.
Detailed Description
The invention discloses a device for vibrating and screening polluted soil, wherein a first supporting end 121 and a second supporting end 122 of a first supporting frame in a transmission mechanism are respectively fixed on a supporting table 11 so as to support an intermediate conveying section 123 through the first supporting end 121 and the second supporting end 122, the height of the first supporting end 121 is smaller than that of the second supporting end 122, a driving wheel 1211 is respectively arranged on the first supporting end 121 and the second supporting end 122, and a conveying belt 13 is sleeved on the driving wheel 1211 through an inner side wall and is enveloped at the peripheral part of the intermediate conveying section 123. The third support end 211 and the fourth support end 212 of the second support frame in the first vibrating screening mechanism are respectively fixed on the support table 11, the mounting table 213 is respectively connected with the first support end 121 and the second support end 122, the first screen box is mounted on the mounting table 213, the first hollow portion 224 in the first screen box is communicated with the first feed inlet, the first coarse material outlet 222 and the first fine material outlet 223, the first vibrating component is arranged on the first body 221, the first screen 24 is mounted in the first hollow portion 224, the first hollow portion 224 is divided into a first screening channel and a second screening channel by the first screen 24, the first screening channel is communicated with the first coarse material outlet 222, the second screening channel is communicated with the first fine material outlet 223, and the first screen 24 is provided with a first screen hole 241 penetrating through the first screening channel and the second screening channel. The fifth support end 31 of the second vibration screening mechanism is fixed on the support platform 11 through the third support end 211 and the fourth support end 212, the second screen box is arranged on the fifth support end 31 and the first support end 121, the second screen box is internally provided with a second feed port 322 and a first fine material outlet 223 which are communicated with each other, a second hollow part 324 is communicated with the second feed port 322, a second coarse material outlet 323 and a second fine material outlet 325, the second vibration part is arranged on the second body 321, the second screen is arranged in the second hollow part 324, the second screen divides the second hollow part 324 into a third screening channel and a fourth screening channel, the third screening channel is communicated with the second coarse material outlet 323, the fourth screening channel is communicated with the second fine material outlet 325, the second screen is provided with a second screen hole which penetrates through the third screening channel and the fourth screening channel, the diameter of the second screen hole is smaller than that of the first screen hole 241, the second fine material outlet 325 is opened toward the outer side wall of the conveyor belt 13 to convey the qualified soil discharged from the second fine material outlet 325 to the second support end 122 by the conveyor belt 13. Thus, the contaminated soil enters the first screening channel from the first feeding hole in the first screen box, the first screen 24 is driven by the first vibrating component to carry out vibrating screening on the contaminated soil, the screened contaminated soil with smaller particle size is conveyed to the second feeding hole 322 from the first screen hole 241 through the second screening channel and the first fine material outlet 223, the contaminated soil with smaller particle size entering the third screening channel from the second feeding hole 322 is subjected to vibrating screening through the second vibrating component and the second screen, the qualified soil with smaller particle size is conveyed to the conveying belt 13 from the second screen hole through the fourth screening channel and the second fine material outlet 325, the qualified soil is conveyed to the second supporting end 122 at a higher position by the conveying belt 13 to be thrown down, the contaminated soil with smaller particle size is screened out firstly, and the qualified soil with smaller particle size is screened out from the contaminated soil with smaller particle size, and throw off the further loose soil granule of less qualified soil of particle size from the eminence for the difficult card material of soil can improve screening efficiency, and qualified soil after the screening is even and does not contain large granule clod or gravel for the particle size, satisfies the condition of dystopy restoration processing. Thereby reached the granularity that reduces soil for pollute the difference of soil particle diameter less, can satisfy the condition of dystopy restoration processing, the high technological effect of screening treatment effeciency of polluting soil.
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 obtained by a person of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention; the "and/or" keyword referred to in this embodiment represents sum or two cases, in other words, a and/or B mentioned in the embodiment of the present invention represents two cases of a and B, A or B, and describes three states where a and B exist, such as a and/or B, which represents: only A does not include B; only B does not include A; including A and B.
It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments. Spatially relative terms, such as "below," "above," and the like, may be used herein to facilitate describing one element or feature's relationship to another element or feature. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "lower" would then be oriented "upper" other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Also, in embodiments of the invention where an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used in the embodiments of the present invention are for illustrative purposes only and are not intended to limit the present invention.
Referring to fig. 1 and 2, fig. 1 is a first schematic view of an apparatus for vibratory screening of contaminated soil according to an embodiment of the present invention, and fig. 2 is a second schematic view of the apparatus for vibratory screening of contaminated soil according to an embodiment of the present invention. The device for vibrating and screening the polluted soil, provided by the embodiment of the invention, comprises a transmission mechanism, a first vibrating and screening mechanism and a second vibrating and screening mechanism, wherein the transmission mechanism, the first vibrating and screening mechanism and the second vibrating and screening mechanism are respectively explained in detail as follows:
for the transport mechanism:
the conveying mechanism comprises a supporting table 11, a first supporting frame and a conveying belt 13, wherein the first supporting frame is provided with a first supporting end 121, a second supporting end 122 and an intermediate conveying section 123, the first supporting frame is fixed on the supporting table 11 through the first supporting end 121, the first supporting frame is fixed on the supporting table 11 through the second supporting end 122 so as to support the intermediate conveying section 123 through the first supporting end 121 and the second supporting end 122, the height of the first supporting end 121 is smaller than that of the second supporting end 122, and the first supporting end 121 and the second supporting end 122 are respectively provided with a driving wheel 1211; the conveying belt 13 is sleeved on the driving wheel 1211 through an inner side wall and is wrapped at the peripheral part of the middle conveying section 123. Wherein the inclination angle of the conveyor belt 13 with respect to the support table 11 is in the range of 0 ° to 30 °.
Specifically, the supporting table 11 may be installed on the ground, the supporting table 11 has a space for accommodating the first supporting frame and the second supporting frame, the first supporting end 121 and the second supporting end 122 are respectively installed on the supporting table 11, and the intermediate transfer section 123 is respectively connected to the first supporting end 121 and the second supporting end 122, so that the intermediate transfer section 123 is supported by the first supporting end 121 and the second supporting end 122. A driving wheel 1211 is disposed on each of the first supporting end 121 and the second supporting end 122, the driving wheel 1211 can be driven by a motor, as shown in fig. 1, the conveying belt 13 can be driven to rotate clockwise by the rotation of the two driving wheels 1211, the inner side wall and the outer side wall are two mutually opposite side walls of the conveying belt 13, and the inner side wall of the conveying belt 13 is close to the driving wheel 1211. As shown in fig. 1, the height of the first supporting end 121 refers to the length of the first supporting end 121 in the vertical direction, the height of the second supporting end 122 refers to the length of the second supporting end 122 in the vertical direction, the height of the first supporting end 121 is smaller than the height of the second supporting end 122, and the inclination angle of the conveying belt 13 relative to the supporting table 11 is in the range of 0 ° to 30 ° in value: if the included angle of the plane where the conveying belt 13 is located relative to the plane where the support table 11 is located is a1, 0 ° < a1 < 30 °, so that the qualified soil with smaller particle size on the conveying belt 13 can be driven by the driving wheel 1211 to move from a low position to a high position, and then in the process of being thrown down from the high position at the second support end 122, the qualified soil with smaller particle size on the conveying belt 13 is not easy to slip off from the direction close to the support table 11, and meanwhile, the effect of further loosening the qualified soil particles with smaller particle size is achieved, and the qualified soil particles with smaller particle size are stacked at a distance to form a soil pile with a certain height, so that the mechanical transfer is facilitated, and the purpose of creating good conditions for subsequent ex-situ treatment of the contaminated soil is achieved.
For the first vibratory screening mechanism:
the first vibration screening mechanism comprises a second support frame, a first screening box, a first vibration part and a first screen 24, the second support frame is provided with a third support end 211, a fourth support end 212 and an installation table 213, the second support frame is fixed on the support table 11 through the third support end 211, the second support frame is fixed on the support table 11 through the fourth support end 212, and the installation table 213 is connected with the first support end 121 and the second support end 122 respectively. The first screen box is mounted on the mounting table 213, and is provided with a first body 221, a first feed port, a first coarse material outlet 222, a first fine material outlet 223, and a first hollow portion 224, and the first hollow portion 224 is communicated with the first feed port, the first coarse material outlet 222, and the first fine material outlet 223. The first vibration part is disposed on the first body 221, the first vibration part includes a first vibration motor 231 and a first eccentric wheel 232, the first vibration motor 231 is disposed on the first body 221, and the first eccentric wheel 232 is disposed on the first body 221. The first screen 24 is installed in the first hollow portion 224, the first screen 24 divides the first hollow portion 224 into a first screening passage and a second screening passage, the first screening passage and the first coarse material outlet 222 are communicated with each other, the second screening passage and the first fine material outlet 223 are communicated with each other, and the first screen 24 is provided with a first screen hole 241 penetrating the first screening passage and the second screening passage. Wherein the first screen 24 is inclined at an angle in the range of 20 ° to 30 ° with respect to the support table 11. The first screen openings 241 have a diameter ranging in value from 5cm to 6 cm. The first vibrating screening mechanism further comprises a discharge hopper 25 and a guide groove 26, the discharge hopper 25 is communicated with the first fine material outlet 223, the guide groove 26 is communicated with the discharge hopper 25, and the opening direction of the guide groove 26 faces the second feed opening 322.
Specifically, the third support end 211 and the fourth support end 212 mounted on the support platform 11 can provide support for the support platform 11, the first body 221 in the first screen box is mounted on the mounting platform 213, as shown in fig. 1, the first feeding hole can be arranged at the top or the back of the first body 221, and the original contaminated soil (i.e. unscreened contaminated soil) can enter the interior of the first hollow portion 224 from the first feeding hole in the first screen box. The first hollow portion 224 has a space for accommodating the first screen 24, the space enclosed by the upper side surface of the first screen 24 and the first body 221 is a first screening passage, the original contaminated soil entering from the first inlet port in the first screen box directly enters the first screening passage, the space enclosed by the lower side surface of the first screen 24 and the first body 221 is a second screening passage, a plurality of first screen holes 241 are provided on the first screen 24, the first vibration motor 231, the first eccentric 232 and the first screen 24 may form a linear vibration screen, when the original contaminated soil entering the first screening passage falls onto the first screen 24, the vibration force acting on the first screen 24 through the first vibration motor 231 and the first eccentric 232 causes soil particles having a particle size smaller than the diameter of the first screen holes 241 (hereinafter, referred to as first-screened soil) in the original contaminated soil to enter the second screening passage, soil that gets into the first time screening in the second screening passageway can get into out hopper 25 from first fines export 223, because the opening direction of guide slot 26 is towards second feed inlet 322, the soil that gets into the first time screening in the hopper 25 can change the direction of motion, moves towards the direction that gets into second feed inlet 322 in the second sieve case from the opening part of guide slot 26, and the soil after can screening like this can not scatter and fall for the soil of first time screening all can get into the inside of second well portion 324 in the second sieve case from second feed inlet 322.
It should be noted that the inclination angle of the first screen 24 with respect to the support table 11 is in the range of 20 ° to 30 ° in the following sense: if the included angle of the plane where the first screen 24 is located with respect to the plane where the support table 11 is located is a2, the included angle is 20 degrees < a2 degrees < 30 degrees, so that the soil is not easy to block in the process of screening the original contaminated soil through the first screen 24, and the screening efficiency is improved. The numerical range of the diameter of the first screen holes 241 is 5cm to 6cm, which means that: assuming that the diameter of the first screen hole 241 is B1, 5cm < B1 < 6cm, so that soil particles with a particle diameter smaller than or equal to B1 in the original contaminated soil can pass through the first screen hole 241 during the vibration of the original contaminated soil on the first screen 24, soil particles with a particle diameter larger than B1 in the original contaminated soil can continue to be in the first screening channel and can be discharged from the first screening channel through the first coarse material outlet 222, such as stones in the original contaminated soil can be discharged from the first coarse material outlet 222, soil particles with a particle diameter smaller than or equal to B1 (i.e. the first screened soil) can be screened out, providing primarily screened contaminated soil particles in the second vibration screening mechanism, avoiding the situation that soil particles with a particle diameter larger than B1 are easy to be jammed in the screening on the second screen, the screening efficiency is improved.
For the second vibratory screening mechanism:
the second vibrating and screening mechanism includes a fifth support end 31, a second screen box, a second vibrating component and a second screen, wherein the fifth support end 31 is fixed on the support platform 11 through the third support end 211 and the fourth support end 212. The second sieve box is installed at the fifth support end 31 and the first support end 121, and is provided with a second body 321, a second feed opening 322, a second coarse material outlet 323, a second fine material outlet 325 and a second hollow portion 324, wherein the second feed opening 322 and the first fine material outlet 223 are communicated with each other, the second hollow portion 324 is communicated with the second feed opening 322, the second coarse material outlet 323 and the second fine material outlet 325, and the second fine material outlet 325 is located between the second coarse material outlet 323 and the fifth support end 31. The second vibration part is disposed on the second body 321, the second vibration part includes a second vibration motor 331 and a second eccentric wheel, the second vibration motor 331 is disposed on the second body 321, and the second eccentric wheel is disposed on the second body 321. The second screen is installed in the second hollow portion 324, the second screen divides the second hollow portion 324 into a third screening channel and a fourth screening channel, the third screening channel is communicated with the second coarse material outlet 323, the fourth screening channel is communicated with the second fine material outlet 325, the second screen is provided with a second screen hole penetrating through the third screening channel and the fourth screening channel, the diameter of the second screen hole is smaller than that of the first screen hole 241, and the opening direction of the second fine material outlet 325 faces the outer side wall of the conveying belt 13, so that the qualified soil discharged from the second fine material outlet 325 is conveyed to the second support end 122 through the conveying belt 13. Wherein the second screen has an inclination angle with respect to the support table 11 in a range of 20 ° to 30 °, and the second screen hole has a diameter in a range of 2cm to 3 cm.
Specifically, after the first screened soil is screened out by the first screen 24, the first screened soil enters the third screening channel through the second feed port 322 and falls onto the second screen, the vibration force acting on the second screen by the second vibration motor 331 and the second eccentric wheel screens out soil particles (i.e. qualified soil) with particle diameter smaller than or equal to that of the second screen hole in the first screened soil, i.e. the soil particles with particle diameter smaller than or equal to that of the second screen hole in the first screened soil enter the fourth screening channel from the second screen hole, the screened qualified soil falls onto the conveying belt 13 in the conveying mechanism through the second fine material outlet 325 from the fourth screening channel, the conveying belt 13 conveys the qualified soil to a high place and throws the qualified soil down to further loosen the soil particles, and the qualified soil passing through the second screen hole on the second screen is all soil particles with uniform particle diameter, and the qualified soil does not contain large-particle soil blocks or gravels, so that the condition of ex-situ remediation treatment can be met. In addition, since the second sieve box and the first sieve box have the same structure and principle, the description is not repeated here. Since the second vibration member and the first vibration member have the same structure and principle, they will not be described in detail here.
It is worth mentioning that the inclination angle of the second screen with respect to the support table 11 in the range of 20 ° to 30 ° means: if the included angle of the plane where the second screen is located relative to the plane where the support table 11 is located is A3, 20 degrees is more than A3 and less than 30 degrees, so that when the soil screened for the first time is screened again through the second screen, the soil screened for the first time is not easy to block in the screening process, and the screening efficiency is improved. The numerical range of the diameter of the second screen hole from 2cm to 3cm means that: assuming that the diameter of the second screen hole is B2, 2cm < B2 < 3cm, so that during the vibration of the first screened soil on the second screen, soil particles in the first soil sift having a particle diameter less than or equal to B2 will pass through the second screen openings, soil particles in the first soil sift having a particle diameter greater than B2 will continue to be in the third screen openings, and the waste water is discharged from the third screening channel through the second coarse material outlet 323, for example, the stones with smaller diameters in the original contaminated soil are discharged from the second coarse material outlet 323, and then soil particles (namely, the qualified soil) with particle diameters smaller than or equal to B2 are screened out, so that the qualified soil is provided for the conveying belt 13 to be conveyed to a high place to be thrown down to form the qualified soil for loading or piling for ex-situ remediation, and the effect of high efficiency of screening the contaminated soil is achieved.
The invention provides a device for vibrating and screening polluted soil, wherein a first supporting end 121 and a second supporting end 122 of a first supporting frame in a transmission mechanism are respectively fixed on a supporting table 11 so as to support an intermediate conveying section 123 through the first supporting end 121 and the second supporting end 122, the height of the first supporting end 121 is smaller than that of the second supporting end 122, a driving wheel 1211 is respectively arranged on the first supporting end 121 and the second supporting end 122, and a conveying belt 13 is sleeved on the driving wheel 1211 through an inner side wall and is enveloped at the peripheral part of the intermediate conveying section 123. The third support end 211 and the fourth support end 212 of the second support frame in the first vibrating screening mechanism are respectively fixed on the support table 11, the mounting table 213 is respectively connected with the first support end 121 and the second support end 122, the first screen box is mounted on the mounting table 213, the first hollow portion 224 in the first screen box is communicated with the first feed inlet, the first coarse material outlet 222 and the first fine material outlet 223, the first vibrating component is arranged on the first body 221, the first screen 24 is mounted in the first hollow portion 224, the first hollow portion 224 is divided into a first screening channel and a second screening channel by the first screen 24, the first screening channel is communicated with the first coarse material outlet 222, the second screening channel is communicated with the first fine material outlet 223, and the first screen 24 is provided with a first screen hole 241 penetrating through the first screening channel and the second screening channel. The fifth support end 31 of the second vibration screening mechanism is fixed on the support platform 11 through the third support end 211 and the fourth support end 212, the second screen box is arranged on the fifth support end 31 and the first support end 121, the second screen box is internally provided with a second feed port 322 and a first fine material outlet 223 which are communicated with each other, a second hollow part 324 is communicated with the second feed port 322, a second coarse material outlet 323 and a second fine material outlet 325, the second vibration part is arranged on the second body 321, the second screen is arranged in the second hollow part 324, the second screen divides the second hollow part 324 into a third screening channel and a fourth screening channel, the third screening channel is communicated with the second coarse material outlet 323, the fourth screening channel is communicated with the second fine material outlet 325, the second screen is provided with a second screen hole which penetrates through the third screening channel and the fourth screening channel, the diameter of the second screen hole is smaller than that of the first screen hole 241, the second fine material outlet 325 is opened toward the outer side wall of the conveyor belt 13 to convey the qualified soil discharged from the second fine material outlet 325 to the second support end 122 by the conveyor belt 13. Thus, the contaminated soil enters the first screening channel from the first feeding hole in the first screen box, the first screen 24 is driven by the first vibrating component to carry out vibrating screening on the contaminated soil, the screened contaminated soil with smaller particle size is conveyed to the second feeding hole 322 from the first screen hole 241 through the second screening channel and the first fine material outlet 223, the contaminated soil with smaller particle size entering the third screening channel from the second feeding hole 322 is subjected to vibrating screening through the second vibrating component and the second screen, the qualified soil with smaller particle size is conveyed to the conveying belt 13 from the second screen hole through the fourth screening channel and the second fine material outlet 325, the qualified soil is conveyed to the second supporting end 122 at a higher position by the conveying belt 13 to be thrown down, the contaminated soil with smaller particle size is screened out firstly, and the qualified soil with smaller particle size is screened out from the contaminated soil with smaller particle size, and throw off the further loose soil granule of less qualified soil of particle size from the eminence for the difficult card material of soil can improve screening efficiency, and qualified soil after the screening is even and does not contain large granule clod or gravel for the particle size, satisfies the condition of dystopy restoration processing. Thereby reached the granularity that reduces soil for pollute the difference of soil particle diameter less, can satisfy the condition of dystopy restoration processing, the high technological effect of screening treatment effeciency of polluting soil.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. An apparatus for vibratory screening of contaminated soil, the apparatus comprising:
a transport mechanism, the transport mechanism comprising:
a support table;
the first support frame is provided with a first support end, a second support end and a middle conveying section, the first support frame is fixed on the support table through the first support end, the first support frame is fixed on the support table through the second support end so as to support the middle conveying section through the first support end and the second support end, the height of the first support end is smaller than that of the second support end, and the first support end and the second support end are respectively provided with a driving wheel;
the conveying belt is sleeved on the driving wheel through an inner side wall and is enveloped at the peripheral part of the middle conveying section;
a first vibratory screening mechanism, the first vibratory screening mechanism comprising:
the second support frame is provided with a third support end, a fourth support end and an installation platform, the second support frame is fixed on the support platform through the third support end, the second support frame is fixed on the support platform through the fourth support end, and the installation platform is respectively connected with the first support end and the second support end;
the first screen box is arranged on the mounting table and is provided with a first body, a first feeding hole, a first coarse material outlet, a first fine material outlet and a first hollow part, and the first hollow part is communicated with the first feeding hole, the first coarse material outlet and the first fine material outlet;
a first vibration member provided to the first body;
the first screen is arranged in the first hollow part, the first hollow part is divided into a first screening channel and a second screening channel by the first screen, the first screening channel is communicated with the first coarse material outlet, the second screening channel is communicated with the first fine material outlet, and the first screen is provided with a first screen hole penetrating through the first screening channel and the second screening channel;
a second vibratory screening mechanism, the second vibratory screening mechanism comprising:
a fifth support end fixed to the support table through the third support end and the fourth support end;
the second screen box is arranged at the fifth supporting end and the first supporting end and is provided with a second body, a second feeding hole, a second coarse material outlet, a second fine material outlet and a second hollow part, the second feeding hole is communicated with the first fine material outlet, and the second hollow part is communicated with the second feeding hole, the second coarse material outlet and the second fine material outlet;
a second vibration member provided to the second body;
the second screen cloth, the second screen cloth install in the well kenozooecium of second, the second screen cloth will well kenozooecium is cut apart into third screening passageway and fourth screening passageway in the second, the third screening passageway with the second coarse fodder export communicates with each other, the fourth screening passageway with the second fine fodder export communicates with each other, the second screen cloth is provided with and runs through the second sieve mesh of third screening passageway with fourth screening passageway, the diameter of second sieve mesh is less than the diameter of first sieve mesh, the opening direction orientation of second fine fodder export the lateral wall of conveyor belt, in order to pass through conveyor belt will the qualified soil of second fine fodder export discharge is carried to second support end department.
2. An apparatus for vibratory screening of contaminated soil as set forth in claim 1 wherein:
the inclination angle of the conveyor belt with respect to the support table is in the range of 0 ° to 30 °.
3. An apparatus for vibratory screening of contaminated soil as set forth in claim 1 wherein:
the first vibration part comprises a first vibration motor and a first eccentric wheel, the first vibration motor is arranged on the first body, and the first eccentric wheel is arranged on the first body.
4. An apparatus for vibratory screening of contaminated soil as set forth in claim 1 wherein:
the first screen is inclined at an angle in the range of 20 ° to 30 ° relative to the support table.
5. An apparatus for vibratory screening of contaminated soil as set forth in claim 1 wherein:
the first screen openings have a diameter in the range of 5cm to 6 cm.
6. The apparatus for vibratory screening of contaminated soil according to claim 1, wherein said first vibratory screening mechanism further comprises:
the discharge hopper is communicated with the first fine material outlet;
and the guide groove is communicated with the discharge hopper, and the opening direction of the guide groove faces the second feed inlet.
7. An apparatus for vibratory screening of contaminated soil as set forth in claim 1 wherein:
the second screen is inclined at an angle in the range of 20 ° to 30 ° relative to the support table.
8. An apparatus for vibratory screening of contaminated soil as set forth in claim 1 wherein:
the diameter of the second screen hole ranges from 2cm to 3 cm.
9. An apparatus for vibratory screening of contaminated soil as set forth in claim 1 wherein:
the second vibration part comprises a second vibration motor and a second eccentric wheel, the second vibration motor is arranged on the second body, and the second eccentric wheel is arranged on the second body.
10. An apparatus for vibratory screening of contaminated soil as set forth in claim 1 wherein:
the second fines outlet is located between the second coarse outlet and the fifth support end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111127838.3A CN113828511A (en) | 2021-09-26 | 2021-09-26 | Device for vibrating and screening polluted soil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111127838.3A CN113828511A (en) | 2021-09-26 | 2021-09-26 | Device for vibrating and screening polluted soil |
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| CN113828511A true CN113828511A (en) | 2021-12-24 |
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| CN202111127838.3A Pending CN113828511A (en) | 2021-09-26 | 2021-09-26 | Device for vibrating and screening polluted soil |
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| US20160158805A1 (en) * | 2014-12-05 | 2016-06-09 | General Kinematics Corporation | Vibratory Apparatus With Multiple Screening Decks |
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| CN209985743U (en) * | 2019-03-29 | 2020-01-24 | 潍坊中威环保科技有限公司 | High-efficient grit screening plant |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20160158805A1 (en) * | 2014-12-05 | 2016-06-09 | General Kinematics Corporation | Vibratory Apparatus With Multiple Screening Decks |
| CN208018926U (en) * | 2018-01-09 | 2018-10-30 | 深圳市宝金华混凝土有限公司 | A kind of sand sieving machine |
| CN108212763A (en) * | 2018-03-06 | 2018-06-29 | 蓝龙飞 | A kind of rocking type Sand screen for building |
| CN209985743U (en) * | 2019-03-29 | 2020-01-24 | 潍坊中威环保科技有限公司 | High-efficient grit screening plant |
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Application publication date: 20211224 |
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