CN111420874A - Screening equipment for secondary stiffness spring for shield construction muck treatment - Google Patents
Screening equipment for secondary stiffness spring for shield construction muck treatment Download PDFInfo
- Publication number
- CN111420874A CN111420874A CN202010246187.9A CN202010246187A CN111420874A CN 111420874 A CN111420874 A CN 111420874A CN 202010246187 A CN202010246187 A CN 202010246187A CN 111420874 A CN111420874 A CN 111420874A
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- Prior art keywords
- spring
- mounting seat
- screening equipment
- screening
- fixedly connected
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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
- B07B1/34—Moving 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
- B07B1/343—Moving 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses screening equipment of a secondary stiffness spring for treating shield construction residue soil, which comprises screening equipment, wherein an excitation motor is arranged on the screening equipment, a screen and a spring assembly are arranged in the screening equipment, the spring assembly comprises an upper mounting seat and a lower mounting seat, the upper mounting seat is fixedly connected with the screening equipment, a composite spring group is arranged between the upper mounting seat and the lower mounting seat, the composite spring group comprises an external spring and a plurality of internal springs, the plurality of internal springs are arranged in the external spring, the upper part of the external spring is fixedly connected with the upper mounting seat, the lower part of the external spring is fixedly connected with the lower mounting seat, and the lower parts of the plurality of internal springs are fixedly connected with the lower mounting seat. The running stability of the device is ensured.
Description
Technical Field
The invention belongs to the technical field of shield muck treatment, and particularly belongs to screening equipment of a secondary stiffness spring 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.
In the prior art, the residue soil excavated by the shield machine can be conveyed to the vibration screening equipment in various modes, and as the stratum penetrated by the shield machine is often complex and the properties of sand and stone are unstable, the amplitude or vibration characteristics of the vibration screening equipment should be properly adjusted according to different types and different particle sizes of sand and stone, and the processing capacity and the adaptability of the vibration screening equipment can be reduced by always adopting the same amplitude or vibration characteristics.
Therefore, in order to solve the above problems, the vibration screening device needs to be improved to meet the residue soil screening requirements under different conditions, and the processing capacity of the vibration screening device for different residue soils is improved.
Disclosure of Invention
Aiming at the problem that the processing capacity and the adaptability of the vibration screening equipment can be reduced by adopting the same amplitude or vibration characteristic in the screening equipment in the prior art, the invention provides screening equipment of a secondary stiffness spring for shield construction muck processing, which aims to: the screening equipment can work under different amplitudes, and the processing capacity and the adaptability of the screening equipment are improved.
The technical scheme adopted by the invention is as follows:
a screening device of a secondary stiffness spring for shield construction muck treatment comprises a screening device box body, wherein an excitation motor is arranged on the screening device box body, a screen and a spring assembly are arranged in the screening device box body, the spring assembly comprises an upper mounting seat and a lower mounting seat, the upper mounting seat is fixedly connected with the screening device box body, a composite spring set is arranged between the upper mounting seat and the lower mounting seat, the composite spring set comprises an external spring and a plurality of internal springs, the plurality of internal springs are arranged in the external spring, the end of the external spring is fixedly connected with the upper mounting seat, the lower end of the external spring is fixedly connected with the lower mounting seat, the lower end of the plurality of internal springs is fixedly connected with the lower mounting seat, and a gap is formed between the upper end of each internal spring and the upper mounting seat, the height of the gaps is different.
In the scheme, the excitation motor is started to drive the screening equipment box body to vibrate so as to drive the screen to vibrate up and down, the screening equipment box body starts to vibrate and transmits the vibration to the composite spring group through the upper mounting seat, the composite spring group can provide rigidity for the up-and-down vibration of the screening equipment box body, the normal work of the screening equipment is ensured, and the noise generated by vibration can be reduced, the rigidity is completed under the combined action of the internal springs and the external springs of the composite spring group, the external springs firstly improve the first-stage rigidity, a plurality of internal springs can respectively provide second-stage rigidity, third-stage rigidity and the like in sequence along with the increase of the amplitude, the invention obtains various new vibration characteristics by arranging different numbers of internal springs with different gaps, and obtains more combination characteristics by adjusting the rigidity of different numbers of internal springs so as to meet the treatment of different types of muck, the screening equipment can work under different amplitudes, and the processing capacity and the adaptability of the screening equipment are improved.
Preferably, the number of the innerspring is one. By adopting the preferred scheme, the composite spring group is arranged into an internal spring and an external spring, so that the screening equipment has two-stage rigidity, the box body of the screening equipment has similar natural frequency during working, and the running stability of the screening equipment is ensured.
Preferably, a material collecting disc is arranged in the screening equipment box body and located below the screen. After adopting this preferred scheme, the aggregate dish can be collected the undersize thing that leaks from the screen cloth.
Preferably, the material collecting disc is provided with an inclined angle, and a first chute is arranged on the lower side of the material collecting disc. After adopting this preferred scheme, the aggregate dish vibrates along with the screening equipment box, transports the subsieve fraction from higher one end to lower one end, then collects through first chute.
Preferably, the screen has an inclined angle, and a second chute is arranged at the lower side of the screen. After adopting this preferred scheme, the screen cloth is along with the vibration of screening equipment box, and the oversize is transported to the lower side through the vibration from the higher side of screen cloth, then collects through the second chute.
Preferably, a guide shaft is arranged in the built-in spring, the upper end of the guide shaft is fixedly connected with the upper mounting seat, and the lower end of the guide shaft is connected with the lower mounting seat in a sliding manner along the axial direction of the guide shaft. Adopt this preferred scheme, the guiding axle enables screening equipment and can only vibrate along the axis direction of guiding axle, can restrict screening equipment's lateral shifting, prevents that screening equipment from taking place horizontal unstability, improves screening equipment's stability.
Preferably, the adjustable clamp comprises an upper laminated plate, a lower laminated plate and an adjusting bolt, wherein the upper laminated plate is arranged at the top of the upper mounting seat, the lower laminated plate is arranged at the top of the lower mounting seat, two ends of the adjusting bolt are respectively connected with the upper laminated plate and the lower laminated plate, and an adjusting spring is sleeved on the adjusting bolt. Adopt this preferred scheme, can change bolt spring's the degree of compressing tightly through rotating adjusting bolt to change the distance between last lamination board and the lower lamination board, thereby change the vibration stroke of compound spring group, reach the purpose that changes screening equipment amplitude, to the grit of different grade type, different particle diameters, the throughput and the adaptability that can improve screening equipment through the amplitude that changes screening equipment, cooperation innerspring and external spring provide the mode that multiple amplitude was adjusted.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the excitation motor of the invention is started to drive the screening equipment box body to vibrate and drive the screening equipment box body to vibrate, thereby driving the screen to vibrate up and down, the screening equipment box body starts to vibrate, and the vibration is transmitted to the composite spring group through the upper mounting seat, the composite spring group can not only provide rigidity for the up and down vibration of the screening equipment box body, ensure the normal work of the screening equipment, but also reduce the noise generated by the vibration, the rigidity is completed by the combined action of the built-in spring and the external spring of the composite spring group, the external spring firstly improves the first-stage rigidity, and a plurality of built-in springs can respectively provide second-stage rigidity, third-stage rigidity and the like in sequence along with the increase of the amplitude, the invention obtains a plurality of new vibration characteristics by arranging the built-in springs with different numbers and different gaps, thereby obtaining more combination characteristics by adjusting the, the slag treatment of different types is met, so that the screening equipment can work under different amplitudes, and the treatment capacity and the adaptability of the screening equipment are improved.
2. The composite spring group is arranged into an internal spring and an external spring, so that the screening equipment has two-stage rigidity, the box body of the screening equipment has similar natural frequency during working, and the running stability of the box body is ensured.
3. The material collecting tray can collect undersize materials leaked from the screen, vibrates along with the screening equipment box body, conveys the undersize materials from a higher end to a lower end, and then collects the undersize materials through the first chute; the screen is vibrated with the screening device box and oversize material is transported from the upper side of the screen to the lower side by vibration and then collected by a second chute.
4. The guide shaft can enable the screening equipment to vibrate only along the axial direction of the guide shaft, can limit the transverse movement of the screening equipment, prevents the screening equipment from transverse instability, and improves the stability of the screening equipment.
5. According to the invention, the compression degree of the bolt spring can be changed by rotating the adjusting bolt, so that the distance between the upper laminated plate and the lower laminated plate is changed, the vibration stroke of the composite spring group is changed, the purpose of changing the amplitude of the screening equipment is achieved, the processing capacity and the adaptability of the screening equipment can be improved by changing the amplitude of the screening equipment aiming at different types and different particle sizes of gravels, and various amplitude adjusting modes are provided by matching with the built-in spring and the external spring.
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 view from the front of one embodiment of the spring assembly of the present invention.
FIG. 3 is a diagram of: a side view angle schematic of one embodiment of the spring assembly of the present invention.
FIG. 4 is a drawing; a schematic elevation view of another embodiment of the spring assembly of the present invention.
FIG. 5 is a diagram of: a side view angle schematic of another embodiment of the spring assembly of the present invention.
Reference numerals: 1-screening the equipment box; 2-exciting the motor; 3-screening a screen; 4-mounting a base; 5-lower mounting seat; 6-external spring; 7-an internal spring; 8-material collecting disc; 9-a first chute; 10-a second chute; 11-a guide shaft; 12-upper laminate; 13-lower laminate; 14-adjusting the bolt; 15-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. 1-5.
A screening device of a secondary stiffness spring for shield construction muck treatment comprises a screening device box body 1, wherein an excitation motor 2 is arranged on the screening device box body 1, a screen 3 and a spring assembly are arranged in the screening device box body 2, the spring assembly comprises an upper mounting seat 4 and a lower mounting seat 5, the upper mounting seat 4 is fixedly connected with the screening device box body 2, a composite spring set is arranged between the upper mounting seat 4 and the lower mounting seat 5 and comprises an external spring 6 and a plurality of internal springs 7, the plurality of internal springs 7 are arranged inside the external spring 6, the upper end of the external spring 6 is fixedly connected with the upper mounting seat 4, the lower end of the external spring 6 is fixedly connected with the lower mounting seat 5, the lower ends of the plurality of internal springs 7 are fixedly connected with the lower mounting seat 5, and a gap is formed between the upper end of each internal spring 7 and the upper mounting seat 4, the height of the gaps is different.
The number of the inner spring 7 is one.
In the above embodiment, the sieving device box 1 is respectively fixedly connected with the excitation motor 2, the screen 3 and the upper mounting seat 4 of the spring assembly, the lower mounting seat of the spring assembly is fixedly connected with the foundation, when the excitation motor 2 is started, the sieving device box 1 is driven to vibrate, so as to drive the screen 3 to vibrate up and down, and then the residue soil on the screen 3 is sieved, the spring assembly can ensure the stroke of the up and down vibration of the sieving device box 1, and provide rigidity for the up and down vibration of the sieving device box 1, the rigidity is realized through the composite spring group of the spring assembly, the composite spring group is composed of the external spring 6 and the internal spring 7, wherein the internal spring 7 is arranged inside the external spring 6, the upper end and the lower end of the external spring 6 are respectively and fixedly connected with the upper mounting seat 4 and the lower mounting seat 5, only the lower end of the internal spring 7 is fixed on the, the upper end of the screening device box body 1 is not contacted with the upper mounting seat 4, multi-stage rigidity adjustment can be realized by arranging different numbers of built-in springs 7, and different rigidities meet different types of muck and different muck weights, so that normal work of the screening device box body 1 under different amplitudes is effectively guaranteed.
When the spring assembly of this screening equipment is an internal spring 7 and an external spring 6, make screening equipment box 1 have two-stage rigidity then, and then let screening equipment box 1 have close natural frequency at the during operation, guarantee the stationarity of its operation.
The following examples are all preferably obtained on the basis of example one.
A material collecting disc 8 is arranged in the screening equipment box body 1, and the material collecting disc 8 is located below the screen 3.
The material collecting plate 8 has an inclined angle, and a first chute 9 is arranged on the lower side of the material collecting plate 8. The aggregate tray 4 vibrates along with the screening equipment box body, transports undersize from a higher end to a lower end, and then collects through the first chute 9.
The screen 3 has an inclined angle and a second chute 10 is provided at the lower side of the screen 3. The screen 3 is vibrated with the screening device box and oversize material is transported from the upper side of the screen 3 to the lower side by vibration and then collected by the second chute 10.
The built-in spring 7 is internally provided with a guide shaft 11, the upper end of the guide shaft 11 is fixedly connected with the upper mounting seat 4, and the lower end of the guide shaft 11 is connected with the lower mounting seat 5 in a sliding manner along the axial direction of the guide shaft 11. The upper end of the guide shaft 11 is fixedly connected with the bottom of the upper installation seat 4, the lower installation seat 5 is internally provided with a blind hole matched with the guide shaft 11, and the guide shaft 11 is in sliding connection with the blind hole along the axis direction, so that the screening equipment can only vibrate in the gravity direction, namely the axial direction of the guide shaft 11, and the transverse movement of the screening equipment is well limited.
The novel high-strength steel plate is characterized by further comprising an upper laminated plate 12, a lower laminated plate 13 and an adjusting bolt 14, wherein the upper laminated plate 12 is arranged at the top of the upper mounting seat 4, the lower laminated plate 13 is arranged at the top of the lower mounting seat 5, two ends of the adjusting bolt 14 are respectively connected with the upper laminated plate 12 and the lower laminated plate 13, and an adjusting spring 15 is sleeved on the adjusting bolt 14. Adjusting bolt 14 includes screw rod and nut, the screw rod respectively with last lamination board 13 and 14 sliding connection of lower lamination board, the nut sets up the both ends at the screw rod, be used for preventing that last lamination board 12 and lower lamination board 13 from the both ends roll-off of screw rod, adjusting spring 15 cover is established in the outside of screw rod, adjusting spring 15 is located between last lamination board 13 and lower lamination board 14, through twisting the nut, can change adjusting bolt 14's degree of compressing tightly, change the distance between last lamination board 13 and the lower lamination board 14, thereby change the stroke of compound spring group, reach the purpose that changes the screening equipment amplitude, cooperation built-in spring 6 and external spring 7 provide the mode that multiple amplitude was adjusted.
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 screening equipment that is used for shield structure construction dregs to handle second grade rigidity spring, includes screening equipment box (1), be provided with excitation motor (2) on screening equipment box (1), be provided with screen cloth (3) and spring assembly in screening equipment box (2), spring assembly includes mount pad (4) and lower mount pad (5), go up mount pad (4) and screening equipment box (2) fixed connection, its characterized in that: the spring assembling device is characterized in that a composite spring group is arranged between the upper mounting seat (4) and the lower mounting seat (5), the composite spring group comprises an external spring (6) and a plurality of internal springs (7), the plurality of internal springs (7) are arranged inside the external spring (6), the upper end of the external spring (6) is fixedly connected with the upper mounting seat (4), the lower end of the external spring (6) is fixedly connected with the lower mounting seat (5), the lower ends of the plurality of internal springs (7) are fixedly connected with the lower mounting seat (5), gaps exist between the upper end of each internal spring (7) and the upper mounting seat (4), and the heights of the gaps are different.
2. The screening device of the secondary stiffness spring for shield construction muck treatment according to claim 1, wherein: the number of the built-in springs (7) is one.
3. The screening device of the secondary stiffness spring for shield construction muck treatment according to claim 1, wherein: a material collecting disc (8) is arranged in the screening equipment box body (1), and the material collecting disc (8) is located below the screen (3).
4. The screening device of the secondary stiffness spring for shield construction muck treatment according to claim 3, wherein: the material collecting plate (8) is provided with an inclined angle, and a first chute (9) is arranged on the lower side of the material collecting plate (8).
5. The screening device of the secondary stiffness spring for shield construction muck treatment according to claim 1, wherein: the screen (3) has an inclined angle, and a second chute (10) is arranged on the lower side of the screen (3).
6. The screening device of the secondary stiffness spring for shield construction muck treatment according to claim 1, wherein: a guide shaft (11) is arranged in the built-in spring (7), the upper end of the guide shaft (11) is fixedly connected with the upper mounting seat (4), and the lower end of the guide shaft (11) is in sliding connection with the lower mounting seat (5) along the axial direction of the guide shaft (11).
7. The screening device of the secondary stiffness spring for shield construction muck treatment according to claim 1, wherein: still include last lamination board (12), lower clamp plate (13) and adjusting bolt (14), the top of going up mount pad (4) sets up go up lamination board (12), the top setting of lower mount pad (5) lower clamp plate (13), the both ends of adjusting bolt (14) are connected with last lamination board (12) and lower clamp plate (13) respectively, the cover is equipped with adjusting spring (15) on adjusting bolt (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010246187.9A CN111420874A (en) | 2020-03-31 | 2020-03-31 | Screening equipment for secondary stiffness spring for shield construction muck treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010246187.9A CN111420874A (en) | 2020-03-31 | 2020-03-31 | Screening equipment for secondary stiffness spring for shield construction muck treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111420874A true CN111420874A (en) | 2020-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010246187.9A Pending CN111420874A (en) | 2020-03-31 | 2020-03-31 | Screening equipment for secondary stiffness spring for shield construction muck treatment |
Country Status (1)
| Country | Link |
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| CN (1) | CN111420874A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2116536U (en) * | 1992-03-26 | 1992-09-23 | 建设部长沙建筑机械研究所 | Amplitude-changed oscillating screen |
| US20080149539A1 (en) * | 2006-12-21 | 2008-06-26 | M-I Llc | Linear motors for shaker motion control |
| CN201807413U (en) * | 2010-10-08 | 2011-04-27 | 南京工程学院 | Variable-stiffness dual-plastid secondary pendulum chaotic vibration mill |
| CN203977612U (en) * | 2014-06-24 | 2014-12-03 | 上海大学 | A kind of On A Retrofitted Damper |
| CN104646281A (en) * | 2015-02-10 | 2015-05-27 | 上海理工大学 | Vibrating screen |
| CN104846590A (en) * | 2015-04-29 | 2015-08-19 | 无锡小天鹅股份有限公司 | Suspender assembly for washing machine and washing machine with suspender assembly |
| CN204710714U (en) * | 2015-06-09 | 2015-10-21 | 南通天蓝环保能源成套设备有限公司 | A kind of building waste two-stage crushing macroseism sieve |
| CN206679706U (en) * | 2017-04-12 | 2017-11-28 | 中建七局第四建筑有限公司 | A kind of building waste conveyer |
| CN207981595U (en) * | 2017-12-21 | 2018-10-19 | 甘肃瓮福化工有限责任公司 | A kind of part increases the device of vibrating screen amplitude |
| CN209156365U (en) * | 2018-10-20 | 2019-07-26 | 深圳市宏恒星再生科技有限公司 | Vibrating screen for dregs processing |
-
2020
- 2020-03-31 CN CN202010246187.9A patent/CN111420874A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2116536U (en) * | 1992-03-26 | 1992-09-23 | 建设部长沙建筑机械研究所 | Amplitude-changed oscillating screen |
| US20080149539A1 (en) * | 2006-12-21 | 2008-06-26 | M-I Llc | Linear motors for shaker motion control |
| CN201807413U (en) * | 2010-10-08 | 2011-04-27 | 南京工程学院 | Variable-stiffness dual-plastid secondary pendulum chaotic vibration mill |
| CN203977612U (en) * | 2014-06-24 | 2014-12-03 | 上海大学 | A kind of On A Retrofitted Damper |
| CN104646281A (en) * | 2015-02-10 | 2015-05-27 | 上海理工大学 | Vibrating screen |
| CN104846590A (en) * | 2015-04-29 | 2015-08-19 | 无锡小天鹅股份有限公司 | Suspender assembly for washing machine and washing machine with suspender assembly |
| CN204710714U (en) * | 2015-06-09 | 2015-10-21 | 南通天蓝环保能源成套设备有限公司 | A kind of building waste two-stage crushing macroseism sieve |
| CN206679706U (en) * | 2017-04-12 | 2017-11-28 | 中建七局第四建筑有限公司 | A kind of building waste conveyer |
| CN207981595U (en) * | 2017-12-21 | 2018-10-19 | 甘肃瓮福化工有限责任公司 | A kind of part increases the device of vibrating screen amplitude |
| CN209156365U (en) * | 2018-10-20 | 2019-07-26 | 深圳市宏恒星再生科技有限公司 | Vibrating screen for dregs processing |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200717 |
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| RJ01 | Rejection of invention patent application after publication |