CN111420872A - Double-layer independent excitation screening equipment for shield construction muck treatment - Google Patents

Double-layer independent excitation screening equipment for shield construction muck treatment Download PDF

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Publication number
CN111420872A
CN111420872A CN202010246180.7A CN202010246180A CN111420872A CN 111420872 A CN111420872 A CN 111420872A CN 202010246180 A CN202010246180 A CN 202010246180A CN 111420872 A CN111420872 A CN 111420872A
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CN
China
Prior art keywords
box body
spring
layer
screen
mounting seat
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Pending
Application number
CN202010246180.7A
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Chinese (zh)
Inventor
李恒
段文军
高旭东
任阳
邓洋
冯赟杰
刘光鑫
李�杰
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China Railway Engineering Service Co Ltd
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China Railway Engineering Service Co Ltd
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Application filed by China Railway Engineering Service Co Ltd filed Critical China Railway Engineering Service Co Ltd
Priority to CN202010246180.7A priority Critical patent/CN111420872A/en
Publication of CN111420872A publication Critical patent/CN111420872A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B07B1/34Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen
    • B07B1/343Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen with mechanical drive elements other than electromagnets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/42Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B2201/00Details applicable to machines for screening using sieves or gratings
    • B07B2201/04Multiple deck screening devices comprising one or more superimposed screens

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

The invention discloses a double-layer independent excitation screening device for shield construction muck treatment, which comprises: the device comprises a device mounting support, wherein an upper layer box body and a lower layer box body are arranged on the device mounting support, the bottom of the upper layer box body is communicated with the top of the lower layer box body, an upper layer screen and an upper layer excitation motor are arranged in the upper layer box body, a lower layer screen and a lower layer excitation motor are arranged in the lower layer box body, and the particle size of the upper layer screen is larger than that of the lower layer screen; the middle upper layer box body and the lower layer box body are in a series connection relationship, the muck is subjected to two-stage screening treatment through the two stages of upper layer screen meshes and the lower layer screen meshes, the integral treatment efficiency and treatment effect of the screening equipment can be effectively improved, the upper layer box body and the lower layer box body are mutually independent in structure and function, and the same and different vibration characteristics can be used for carrying out vibration screening on the muck of different types, so that the screening equipment meets the muck screening of different characteristics, and the integral treatment efficiency of the screening equipment is further improved.

Description

Double-layer independent excitation screening equipment for shield construction muck treatment
Technical Field
The invention belongs to the technical field of shield muck treatment, and particularly relates to double-layer independent excitation screening equipment for shield construction muck treatment.
Background
At present, the direct outward transportation mode is adopted for treating the muck generated by shield construction, but the environment is polluted by directly transporting and burying the muck outward, a large amount of available resources in the muck are wasted, and therefore, the muck is treated in a grading mode by adopting a vibration screening mode in partial construction sites.
The dregs excavated by the shield machine in the prior art can be conveyed to the vibration screening equipment in respective modes, the stratum penetrated by the shield machine is often complex, the properties of sand and stone are unstable, the dregs need to be screened for multiple times aiming at different types and different particle sizes of sand and stone, the dregs are influenced by the process of the vibration screening equipment and the complexity of the dregs, the vibration screening equipment has poor adaptability to the characteristic dregs, the capacity matching degree of upper and lower layer screens is insufficient, and thus the treatment capacity of the vibration screening equipment is low and the screening effect is poor.
Disclosure of Invention
Aiming at the problems of weak adaptability and insufficient capability matching degree of upper and lower layer screens of the vibration screening equipment in the prior art, the invention provides double-layer independent excitation screening equipment for shield construction muck treatment, which aims to: the processing capacity of the vibration screening equipment is improved, and the screening effect is improved.
The technical scheme adopted by the invention is as follows:
a double-deck independent excitation screening equipment for shield structure construction dregs is handled includes: the equipment mounting support is provided with an upper box body and a lower box body, the bottom of the upper box body is communicated with the top of the lower box body, an upper screen and an upper excitation motor are arranged in the upper box body, a lower screen and a lower excitation motor are arranged in the lower box body, and the particle size of the upper screen is larger than that of the lower screen.
In the scheme, the upper layer box body is arranged at the top of the equipment mounting support, the lower layer box body is arranged at a position close to the upper part, the upper layer box body and the lower layer box body are arranged in a vertically symmetrical mode, and the bottom of the upper layer box body is communicated with the top of the lower layer box body, so that undersize materials of the upper layer box body can directly enter the lower layer box body to be screened secondarily; the upper excitation motor starts to drive the vibration of the upper box, thereby drive the vibration of the upper screen, dregs firstly carry out primary screening in the upper screen, the undersize of the upper screen can enter into the lower box, and carry out secondary screening in the lower box, upper box and lower box are the series relation, dregs pass through the two-stage screening of two-stage upper screen and lower screen, can effectual holistic treatment effeciency and the treatment effect of improvement screening plant, and mutually independent in structure and function between upper box and the lower box, can carry out vibration screening with the same vibration characteristic with the difference to dregs of different grade type, make screening plant satisfy the dregs screening of different characteristics, further improve the holistic treatment effeciency of screening plant.
Preferably, an upper spring assembly is arranged in the upper box body, the top of the upper spring assembly is connected with the upper box body, and the bottom of the upper spring assembly is fixedly connected with the equipment mounting support. Adopt this preferred scheme, upper spring assembly can provide rigidity for the upper and lower vibration of upper box, guarantees the normal work of equipment, and can reduce the noise that the vibration produced.
Preferably, a lower layer spring assembly is arranged in the lower layer box body, the top of the lower layer spring assembly is connected with the lower layer box body, and the bottom of the lower layer spring assembly is fixedly connected with the equipment mounting support. Adopt this preferred scheme, lower floor spring assembly can provide rigidity for the upper and lower vibration of lower floor's box, guarantees the normal work of equipment, and can reduce the noise that the vibration produced.
Preferably, the upper-layer screen mesh is obliquely arranged, and an upper-layer chute is arranged on one lower side of the upper-layer screen mesh. Adopt this preferred scheme, upper screen cloth vibrates along with upper box, and the thing of oversize is transported to lower side through the vibration from the higher side of upper screen cloth, then collects through the upper chute.
Preferably, the lower-layer screen is obliquely arranged, and a lower-layer chute is arranged on the lower side of the lower-layer screen. Adopt this preferred scheme, lower floor's screen cloth is along with the vibration of upper box, and the thing on the screen is transported to lower one side through the vibration from the higher side of upper screen cloth, then collects through lower floor's chute.
Preferably, the upper spring assembly comprises a first upper mounting seat and a first lower mounting seat, the first upper mounting seat is fixedly connected with the upper box body, the bottom of the first lower mounting seat is fixedly connected with the equipment mounting bracket, a compound spring set is arranged between the first upper mounting seat and the first lower mounting seat, the compound spring set comprises an external spring and an internal spring, the internal spring is arranged inside the external spring, the upper end of the external spring is fixedly connected with the first upper mounting seat, the lower end of the external spring is fixedly connected with the first lower mounting seat, the lower end of the internal spring is fixedly connected with the first lower mounting seat, and a gap is formed between the upper end of the internal spring and the first upper mounting seat. By adopting the preferred scheme, the excitation motor drives the upper box body to vibrate, the composite spring group can provide rigidity for the upper box body to vibrate up and down, and the normal work of the screening equipment is ensured, the rigidity is achieved by the combined action of the internal spring and the external spring of the composite spring group, the external spring firstly improves the first-stage rigidity, and the internal spring can provide the second-stage rigidity along with the increase of the amplitude, so that the invention can obtain the vibration characteristics of two rigidities, further meet the treatment of different types of muck, ensure that the upper box body can work under different amplitudes, and improve the treatment capacity and the adaptability.
Preferably, lower floor's spring unit spare includes mount pad and mount pad under mount pad on the second, mount pad and lower floor's box fixed connection on the second, mount pad bottom and equipment fixing support fixed connection under the second, be provided with vibrating spring between the mount pad under mount pad and the second on the second, the top of mount pad is provided with the lamination board on the second, and the top of mount pad is provided with the lower floor's lamination board under the second, go up and pass through adjusting bolt connection between lamination board and the lower floor's lamination board, the last cover of adjusting bolt is equipped with adjusting spring. Adopt this preferred scheme, the excitation motor drives the box vibration of lower floor, and vibrating spring can provide rigidity for the box vibration from top to bottom of lower floor, can change adjusting spring's the degree that compresses tightly through rotating adjusting bolt to change the distance between last lamination board and the lower floor's lamination board, thereby change vibrating spring's vibration stroke, reach the purpose that changes lower floor's box equipment amplitude, make lower floor's box can work under different amplitudes, improve its throughput and adaptability.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, the upper layer box body is arranged at the top of the equipment mounting bracket, the lower layer box body is arranged at a position close to the upper part, the upper layer box body and the lower layer box body are arranged in a vertically symmetrical mode, and the bottom of the upper layer box body is communicated with the top of the lower layer box body, so that undersize materials of the upper layer box body can directly enter the lower layer box body for secondary screening; the upper excitation motor starts to drive the vibration of the upper box, thereby drive the vibration of the upper screen, dregs firstly carry out primary screening in the upper screen, the undersize of the upper screen can enter into the lower box, and carry out secondary screening in the lower box, upper box and lower box are the series relation, dregs pass through the two-stage screening of two-stage upper screen and lower screen, can effectual holistic treatment effeciency and the treatment effect of improvement screening plant, and mutually independent in structure and function between upper box and the lower box, can carry out vibration screening with the same vibration characteristic with the difference to dregs of different grade type, make screening plant satisfy the dregs screening of different characteristics, further improve the holistic treatment effeciency of screening plant.
2. The upper spring assembly can provide rigidity for the up-and-down vibration of the upper box body, so that the normal work of equipment is ensured, and the noise generated by vibration can be reduced; the lower spring assembly can provide rigidity for the vertical vibration of the lower box body, normal work of equipment is guaranteed, and noise generated by vibration can be reduced.
3. The upper layer screen mesh vibrates along with the upper layer box body, and oversize materials are conveyed to the lower side from the higher side of the upper layer screen mesh through vibration and then collected through the upper layer chute; the lower floor screen cloth is along with the vibration of upper box, and the thing on the sieve is transported lower one side through the vibration from the higher side of upper screen cloth, then collects through lower floor's chute.
4. The exciting motor drives the upper box body to vibrate, the composite spring group can provide rigidity for the upper box body to vibrate up and down, and normal operation of the screening equipment is guaranteed, the rigidity is achieved under the combined action of the built-in spring and the built-out spring of the composite spring group, the built-out spring firstly improves the first-stage rigidity, and the built-in spring can provide the second-stage rigidity along with increase of the amplitude, so that the screening equipment can obtain vibration characteristics of two rigidities, further meets the requirement of different types of muck treatment, enables the upper box body to work under different amplitudes, and improves the treatment capacity and the adaptability of the screening equipment.
5. The excitation motor drives the lower-layer box body to vibrate, the vibration spring can provide rigidity for the lower-layer box body to vibrate up and down, the compression degree of the adjustment spring can be changed by rotating the adjustment bolt, so that the distance between the upper laminated plate and the lower laminated plate is changed, the vibration stroke of the vibration spring is changed, the purpose of changing the amplitude of the lower-layer box body equipment is achieved, the lower-layer box body can work under different amplitudes, and the processing capacity and the adaptability of the lower-layer box body are improved.
6. The upper spring assembly and the lower spring assembly work independently and are matched with each other, and different amplitudes can be set in the upper box body and the lower box body respectively in actual work, so that different types of muck treatment are met, and the treatment efficiency of the invention is improved.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of: a schematic of one embodiment of the present invention.
FIG. 2 is a diagram of: a schematic diagram of one embodiment of the upper spring assembly of the present invention.
FIG. 3 is a diagram of: a schematic view of one embodiment of the lower spring assembly of the present invention.
Reference numerals: 1-equipment mounting brackets; 2-upper layer box body; 3-lower layer box body; 4-upper screen mesh; 5-upper excitation motor; 6-lower layer screen mesh; 7-lower excitation motor; 8-an upper spring assembly; 9-a lower spring assembly; 10-upper chute; 11-lower chute; 12-a first upper mount; 13-a first lower mount; 14-external spring; 15-built-in spring; 16-a second upper mount; 17-a second lower mount; 18-a vibration spring; 19-upper laminate; 20-lower laminate; 21-adjusting bolts; 22-adjusting the spring.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
The present invention is described in detail below with reference to fig. 1-3.
A double-deck independent excitation screening equipment for shield structure construction dregs is handled includes: the equipment mounting support 1, be provided with upper box 2 and lower floor's box 2 on the equipment mounting support 1, the bottom of upper box 2 and the top intercommunication of lower floor's box 3, be provided with upper screen cloth 4 and upper excitation motor 5 in the upper box 2, be provided with lower floor's screen cloth 6 and lower floor's excitation motor 7 in the lower floor's box 3, the particle size of upper screen cloth 4 is greater than the particle size of lower floor's screen cloth 6.
In the above embodiment, the upper box body 2 is installed on the top of the equipment installation support 1, four corners of the bottom of the upper box body 2 are provided with first support seats, one end of each first support seat is fixedly connected with the upper box body 2, the other end of each first support seat is fixed on the top of the equipment installation support 1, the lower box body 3 is arranged below the upper box body 2, a support plate is arranged at a position, close to the top, of the equipment installation support 1, a second support seat is arranged on the lower box body 3, one end of each second support seat is fixedly connected with the upper box body 2, the other end of each second support seat is fixed on the support plate of the equipment installation support 1, the bottom of the upper box body 2 is communicated with the top of the lower box body 3, and unders; the upper excitation motor 5 starts to drive the vibration of the upper box 2, thereby drive the vibration of the upper screen 4, and on the same way, the lower excitation motor 7 starts to drive the vibration of the lower box 3, drive the vibration of the lower screen 6, adjust the vibration characteristic of the upper box 2 or/and the vibration characteristic of the lower box 3 according to the different characteristics of dregs, with this treatment effeciency and the treatment effect of improving the whole dregs screening of equipment, the vibration characteristic can be adjusted through means such as adjusting the motor frequency separately, exciting force, the amplitude or changing the screen cloth.
An upper spring assembly 8 is arranged in the upper-layer box body 2, the top of the upper spring assembly 8 is connected with the upper-layer box body 2, and the bottom of the upper spring assembly 3 is fixedly connected with the equipment mounting support 1. The upper spring assembly 8 can provide rigidity for the upper box body 2 to vibrate up and down, so that the normal work of the equipment is ensured, and the noise generated by vibration can be reduced;
the lower-layer box body 3 is internally provided with a lower-layer spring assembly 9, the top of the lower-layer spring assembly 9 is connected with the lower-layer box body 3, and the bottom of the lower-layer spring assembly 9 is fixedly connected with the equipment mounting support 1. The lower spring assembly 9 can provide rigidity for the upper and lower vibration of the lower box body 3, ensure the normal work of equipment and reduce the noise generated by the vibration;
the upper-layer screen mesh 4 is obliquely arranged, and an upper-layer chute 10 is arranged on the lower side of the upper-layer screen mesh 4. The upper screen 5 vibrates with the upper box 2, and oversize materials are conveyed to the lower side from the higher side of the upper screen 5 through vibration and then collected through the upper chute 10.
The lower screen 5 is obliquely arranged, and a lower chute 11 is arranged on the lower side of the lower screen 5. The lower screen 5 vibrates with the lower box 3, and oversize materials are conveyed to the lower side from the higher side of the lower screen 5 through vibration and then collected through the lower chute 11.
The upper spring assembly 3 comprises a first upper mounting seat 12 and a first lower mounting seat 13, the first upper mounting seat 12 is fixedly connected with the upper box body 2, the bottom of the first lower mounting seat 13 is fixedly connected with the equipment mounting bracket 1, a compound spring set is arranged between the first upper mounting seat 12 and the first lower mounting seat 13 and comprises an external spring 14 and an internal spring 15, the internal spring 15 is arranged inside the external spring 14, the upper end of the external spring 14 is fixedly connected with the first upper mounting seat 12, the lower end of the external spring 14 is fixedly connected with the first lower mounting seat 13, the lower end of the internal spring 15 is fixedly connected with the first lower mounting seat 13, and a gap exists between the upper end of the internal spring 15 and the first upper mounting seat 12. The excitation motor drives the upper box body 2 to vibrate, the upper spring assembly 3 can guarantee the stroke of the upper box body in vertical vibration, and the rigidity is improved for the vertical vibration of the upper box body 2, the rigidity is realized through a composite spring set, the composite spring set is composed of an external spring 14 and an internal spring 15, the internal spring 15 is arranged inside the external spring 14, the upper end and the lower end of the external spring 14 are fixedly connected to a first upper mounting seat 12 and a first lower mounting seat 13 respectively, only the lower end of the internal spring 15 is fixed on the first lower mounting seat 12, the upper end of the internal spring is not contacted with the first upper mounting seat 13, two-stage rigidity adjustment can be realized through the internal spring 15, different rigidities meet different muck types and different muck weights, and the normal work of the upper box body under different amplitudes is effectively guaranteed.
Lower floor's spring unit 9 includes mount pad 16 and mount pad 17 under the second on the second, mount pad 16 and lower floor's box 3 fixed connection on the second, mount pad 17 bottom and equipment fixing support 1 fixed connection under the second, be provided with vibrating spring 18 under mount pad 16 and the second between the mount pad 17 on the second, the top of mount pad 16 is provided with last lamination board 19 on the second, and the top of mount pad 17 is provided with lower lamination board 20 under the second, go up and be connected through adjusting bolt 21 between lamination board 19 and the lower lamination board 20, the cover is equipped with adjusting spring 22 on adjusting bolt 21. Adjusting bolt 21 includes screw rod and nut, the screw rod respectively with last lamination board 19 and lower clamp plate 20 sliding connection, the nut sets up the both ends at the screw rod, be used for preventing that last lamination board 19 and lower clamp plate 20 from the both ends roll-off of screw rod, adjusting spring 22 cover is established in the outside of screw rod, adjusting spring 22 is located between last lamination board 19 and lower clamp plate 20, through twisting the nut, can change adjusting bolt 21's degree of compressing tightly, change the distance between last lamination board 19 and the lower clamp plate 20, thereby change the stroke of vibrating spring 18, reach the purpose that changes lower floor's box 3 amplitude, cooperation built-in spring 15 and external spring 14 provide the mode that multiple amplitude was adjusted.
The vibrating spring 18 and the built-in spring 15 are internally provided with guide shafts, the upper ends of the guide shafts are fixedly connected with the upper mounting seat, the lower ends of the guide shafts are slidably connected with the lower mounting seat along the axial direction of the guide shafts, and the guide shafts can enable the screening equipment to vibrate only along the axial direction of the guide shafts, namely the gravity direction, so that the screening equipment is prevented from being transversely unstable.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.

Claims (7)

1. The utility model provides a double-deck independent excitation screening equipment for shield constructs construction dregs is handled which characterized in that includes: the equipment mounting support comprises an equipment mounting support (1), wherein an upper box body (2) and a lower box body (2) are arranged on the equipment mounting support (1), the bottom of the upper box body (2) is communicated with the top of the lower box body (3), an upper screen (4) and an upper excitation motor (5) are arranged in the upper box body (2), a lower screen (6) and a lower excitation motor (7) are arranged in the lower box body (3), and the particle size of the upper screen (4) is larger than that of the lower screen (6).
2. The double-layer independent excitation screening device for shield construction muck treatment according to claim 1, characterized in that: an upper spring assembly (8) is arranged in the upper box body (2), the top of the upper spring assembly (8) is connected with the upper box body (2), and the bottom of the upper spring assembly (3) is fixedly connected with the equipment mounting support (1).
3. The double-layer independent excitation screening device for shield construction muck treatment according to claim 1, characterized in that: the lower spring assembly (9) is arranged in the lower box body (3), the top of the lower spring assembly (9) is connected with the lower box body (3), and the bottom of the lower spring assembly (9) is fixedly connected with the equipment mounting support (1).
4. The double-layer independent excitation screening device for shield construction muck treatment according to claim 1, characterized in that: the upper-layer screen (4) is obliquely arranged, and an upper-layer chute (10) is arranged on the lower side of the upper-layer screen (4).
5. The double-layer independent excitation screening device for shield construction muck treatment according to claim 1, characterized in that: the lower-layer screen (5) is obliquely arranged, and a lower-layer chute (11) is arranged on the lower side of the lower-layer screen (5).
6. The double-layer independent excitation screening device for shield construction muck treatment according to claim 2, characterized in that: the upper layer spring assembly (3) comprises a first upper mounting seat (12) and a first lower mounting seat (13), the first upper mounting seat (12) is fixedly connected with the upper layer box body (2), the bottom of the first lower mounting seat (13) is fixedly connected with the equipment mounting bracket (1), a compound spring group is arranged between the first upper mounting seat (12) and the first lower mounting seat (13), the compound spring group comprises an external spring (14) and an internal spring (15), the inner spring (15) is arranged inside the outer spring (14), the upper end of the external spring (14) is fixedly connected with the first upper mounting seat (12), the lower end of the external spring (14) is fixedly connected with the first lower mounting seat (13), the lower end of the built-in spring (15) is fixedly connected with the first lower mounting seat (13), a gap exists between the upper end of the built-in spring (15) and the first upper mounting seat (12).
7. The double-layer independent excitation screening device for shield construction muck treatment according to claim 3, characterized in that: lower floor's spring unit (9) are including mount pad (16) and mount pad (17) under mount pad (16) and the second on the second, mount pad (16) and lower floor's box (3) fixed connection on the second, mount pad (17) bottom and equipment fixing support (1) fixed connection under the second, be provided with vibrating spring (18) between mount pad (17) under mount pad (16) and the second on the second, the top of mount pad (16) is provided with last lamination board (19) on the second, and the top of mount pad (17) is provided with lower lamination board (20) under the second, go up and be connected through adjusting bolt (21) between lamination board (19) and lower lamination board (20), the cover is equipped with adjusting spring (22) on adjusting bolt (21).
CN202010246180.7A 2020-03-31 2020-03-31 Double-layer independent excitation screening equipment for shield construction muck treatment Pending CN111420872A (en)

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Application Number Priority Date Filing Date Title
CN202010246180.7A CN111420872A (en) 2020-03-31 2020-03-31 Double-layer independent excitation screening equipment for shield construction muck treatment

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Application Number Priority Date Filing Date Title
CN202010246180.7A CN111420872A (en) 2020-03-31 2020-03-31 Double-layer independent excitation screening equipment for shield construction muck treatment

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Publication Number Publication Date
CN111420872A true CN111420872A (en) 2020-07-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112718474A (en) * 2021-01-15 2021-04-30 福建工程学院 Double-excitation double-layer circular vibrating screen with adjustable screen plate angle

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Publication number Priority date Publication date Assignee Title
CN2386894Y (en) * 1999-09-27 2000-07-12 肖杰明 Flexible supporting slope screening machin
JP2004224665A (en) * 2003-01-27 2004-08-12 Jeol Ltd Method of continuously removing residual active hydrogen oxide
CN202129208U (en) * 2011-01-06 2012-02-01 深圳市盐田港同惠投资股份有限公司 Movable mixture screening equipment
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Application publication date: 20200717