CN112974238B - A multiple screen cloth subassembly for screening sand equipment among building engineering - Google Patents
A multiple screen cloth subassembly for screening sand equipment among building engineering Download PDFInfo
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- CN112974238B CN112974238B CN202110199763.3A CN202110199763A CN112974238B CN 112974238 B CN112974238 B CN 112974238B CN 202110199763 A CN202110199763 A CN 202110199763A CN 112974238 B CN112974238 B CN 112974238B
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- screen
- side wall
- loop bar
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- supporting
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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
- 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
- B07B1/4636—Regulation of screen apertures
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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
- B07B1/50—Cleaning
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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
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a multiple screen assembly for sand screening equipment in constructional engineering, and relates to the technical field of constructional engineering instruments. The invention comprises a lower-layer screen, a middle-layer screen and an upper-layer screen, wherein a first support sleeve rod is connected with an elastic screen in a sliding manner through a sleeve ring, the first support sleeve rod is connected with a second support sleeve rod in a sliding manner through a sleeve ring, the second support sleeve rod is connected with a third support sleeve rod in a sliding manner through a sleeve ring, and a fastening screw rod is connected with a butterfly nut in a riveting manner. According to the invention, by arranging the elastic screen, the first support loop bar, the second support loop bar, the third support loop bar, the fastening screw, the butterfly nut, the lower layer screen, the middle layer screen and the upper layer screen, the problems that the screen assembly of the existing sand screening equipment is difficult to remove in a vibration mode when the screen holes of the screen are blocked, the size of the screen holes of the screen is generally not adjustable and is generally the same as that of the upper and lower layers screens, and sand grains can directly fall on the ground if a sand scattering phenomenon occurs during sand feeding are solved.
Description
Technical Field
The invention belongs to the technical field of constructional engineering instruments, and particularly relates to a multiple screen assembly for a sand screening device in constructional engineering.
Background
In the construction of constructional engineering, the sand materials with different thicknesses are required to be used in different construction procedures, so sand grains are screened by using sand screening equipment required, the existing sand screening equipment mainly comprises a raw material discharging bin, a raw material feeding belt conveyor, a screen, a finished product stacking belt conveyor, a waste stone discharging groove and other structures, and the quality of the screen structure is one of important influence factors influencing the sand screening effect.
The prior publication, CN 209020758U-an energy-conserving sand screening apparatus for building engineering construction, disclose that the upper portion of one side of sand screening storehouse is fixedly provided with the pan feeding mouth, the bottom of one side of sand screening storehouse is fixedly provided with the discharge gate, the bottom of sand screening storehouse is fixedly provided with the upper strut groove, the upper surface of the base is fixedly provided with the lower strut groove, the bottom of sand screening storehouse and the upper surface of the base are fixedly connected through the second spring, the middle part of the inner wall of sand screening storehouse is fixedly provided with the draw-in groove, the middle part of the inner wall of sand screening storehouse and the screen are fixedly connected through the first spring, this kind of screen cloth simple structure, when sand blocks the sun-cured hole of the screen cloth, only rely on the oscillating motor and the rotating electrical machinery to oscillate and rotate, it is difficult to clear away the sand in the screen hole, there is certain defect in the actual use.
The prior publication, CN211756889U, a sand screening device for construction engineering, discloses a containing box fixedly mounted on one side of a machine box, a transport assembly is arranged between the machine box and the containing box, the transport assembly is used for transporting sand to the inside of the machine box, a screening net is arranged inside the machine box and is positioned right below the output end of the transport assembly, a vibration assembly is arranged inside the machine box and is used for shaking the screening net, and the screen is simple in structure, difficult to adjust the size of a screen hole of the screening net and has certain defects in actual use.
However, the following disadvantages still exist in the practical use:
1. the screen assemblies of the prior sand screening apparatuses generally have the problem that when the meshes of the screen are blocked, the screen assemblies are difficult to remove by means of vibration.
2. The screen assembly of the prior sand screening device generally has the problems that the size of the screen hole of the screen is generally not adjustable and the flexibility is poor when in use.
3. The screen assembly of the existing sand screening equipment generally has the same size of screens at the upper layer and the lower layer, and if the sand scattering phenomenon occurs during sand feeding, sand grains can directly fall on the ground, so that the problem of raw material waste is caused.
Therefore, the screen assembly of the existing sand screening device cannot meet the requirements in practical use, so that the improved technology is urgently needed in the market to solve the problems.
Disclosure of Invention
The invention aims to provide a multiple screen assembly for sand screening equipment in constructional engineering, which solves the problems that the screen assembly of the existing sand screening equipment is difficult to remove in a vibration mode when the screen holes of the screen are blocked, the screen holes of the screen are generally not adjustable and the screen holes of the upper layer and the lower layer are generally the same in size, and sand grains can directly fall on the ground if the sand sprinkling phenomenon occurs during sand feeding by arranging an elastic screen, a first support sleeve rod, a second support sleeve rod, a third support sleeve rod, a fastening screw rod, a butterfly nut, a lower layer screen, a middle layer screen and an upper layer screen.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a multiple screen assembly for sand screening equipment in constructional engineering, which comprises a lower screen, a middle screen and an upper screen, wherein the lower screen comprises a support bottom frame which is arranged in a hollow rectangular structure, the upper side wall of the support bottom frame is fixedly connected with the lower side wall of a first support connecting block, the number of the first support connecting blocks is two, the first support connecting blocks are arranged in a symmetrical structure relative to the front of the support bottom frame, the left end and the right end of a first support sleeve rod are respectively fixed on the upper side wall of the first support connecting block on the left side and the right side, the upper side wall of the first support connecting block is fixedly connected with the lower end of the peripheral side wall of the first support sleeve rod, and the first support sleeve rod is connected with the rear end of an elastic screen in a sliding manner through a sleeve ring, first support loop bar passes through the lantern ring and supports the rear end sliding connection of loop bar with the second, lantern ring fixed connection in the front of second support loop bar, back both ends, the front end of second support loop bar passes through the lantern ring and supports all lateral wall sliding connection of loop bar with the third, and lantern ring fixed connection is at the left and right both ends of third support loop bar, the front side at the middle part of all lateral walls of third support loop bar and fastening screw's rear end fixed connection, fastening screw's front end and butterfly nut riveting are connected, the front end of second support loop bar and the back lateral wall fixed connection who connects the otic placode, connect the otic placode and be provided with two altogether, connect the otic placode and rotate with the gyro wheel through the pivot and be connected, the gyro wheel with the last lateral wall roll connection who supports the underframe.
Furthermore, lower floor's screen cloth, middle level screen cloth, upper screen cloth are the equal proportion structure setting, lower floor's screen cloth, middle level screen cloth, upper screen cloth are the structure setting that dwindles in proper order from bottom to top.
Further, the lateral wall fixed connection of the last lateral wall of lower floor's screen cloth through first connecting branch and middle level screen cloth, the lateral wall fixed connection of second connecting branch and upper screen cloth is passed through to the last lateral wall of middle level screen cloth, and first connecting branch, second connecting branch all are L type structure setting, and first connecting branch, second connecting branch all are provided with two, and first connecting branch is about being between the screen cloth of lower floor to being the structure setting, and second connecting branch is about being between the screen cloth of middle level to being the structure setting.
Further, the upper side wall of lower floor's screen cloth passes through the lower lateral wall fixed connection of third connecting strut and middle level screen cloth, the upper side wall of middle level screen cloth passes through the lower lateral wall fixed connection of fourth connecting strut and upper screen cloth, and third connecting strut, fourth connecting strut all are provided with two.
Further, the left and right both ends of elastic screen cloth all through the week side wall sliding connection of lantern ring and second support loop bar, two lantern rings of the equal fixedly connected with in the left and right both ends of elastic screen cloth, the front end of elastic screen cloth passes through the all side wall sliding connection of lantern ring and third support loop bar, two lantern rings of the equal fixedly connected with in the preceding, the back both ends of elastic screen cloth.
Further, the last lateral wall of support underframe and the lower lateral wall fixed connection of second support connection piece, fastening screw is the rear side wall structure setting that runs through second support connection piece, and the through-hole has been seted up to the rear side wall of second support connection piece.
Furthermore, the second supports the loop bar and is provided with two altogether, and the second supports the loop bar and is the bilateral symmetry structure setting about between the elastic screen cloth, the upper end of first support connecting block is convex structure setting.
The invention has the following beneficial effects:
1. according to the invention, by arranging the elastic screen, the first support loop bar, the second support loop bar and the third support loop bar, when the screen hole of the elastic screen is blocked, the third support loop bar is moved forward, the loop on the elastic screen folds towards the middle along the first support loop bar and the second support loop bar, the second support loop bar folds towards the middle along the first support loop bar, the elastic screen gradually deforms, the screen hole of the elastic screen further enlarges, and after the screen hole of the elastic screen enlarges, sand particles blocking the screen hole can fall off, so that the problem that the screen assembly of the existing sand screening equipment is difficult to remove in a vibration mode when the screen hole of the screen is blocked is solved.
2. According to the invention, the fastening screw and the butterfly nut are arranged, the butterfly nut is screwed to the front end of the fastening screw, the third support sleeve rod moves towards the rear end, the sleeve ring on the elastic screen moves towards two sides along the first support sleeve rod and the third support sleeve rod, the second support sleeve rod moves towards two sides along the first support sleeve rod, the butterfly nut is screwed backwards, the elastic screen gradually deforms, the screen hole of the elastic screen is further reduced, otherwise, the screen hole of the elastic screen is enlarged, and the problems that the screen hole of the screen is generally unadjustable and the flexibility is poor when the screen assembly of the existing sand screening equipment is used are solved.
3. According to the invention, by arranging the lower layer screen, the middle layer screen and the upper layer screen, when sand is added to the upper layer screen, if the sand scattering phenomenon occurs, sand particles can be poured onto the outer middle layer screen and the outer lower layer screen, so that the phenomenon that the sand particles directly fall onto the ground is avoided, the sand particles falling on the middle layer screen and the waste material screened by the middle layer screen are recycled together, the sand particles falling on the lower layer screen and the waste material screened by the lower layer screen are recycled together, and in other processes, the waste of raw materials is reduced, the production cost is favorably reduced, and the problems that the screen assemblies of the existing sand screening equipment generally have the same size of the screens of the upper layer and the lower layer, and if the sand scattering phenomenon occurs during sand feeding, the sand particles can directly fall onto the ground, so that the raw materials are wasted are solved.
Of course, it is not necessary for any product to practice the invention to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced 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 that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a multiple screen assembly for a sand screening apparatus used in construction work;
FIG. 2 is a schematic view of the lower screen of FIG. 1 according to the present invention;
FIG. 3 is an enlarged view of the invention at A in FIG. 2;
fig. 4 is an enlarged view of the invention at B in fig. 2.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a lower screen; 2. a middle layer screen mesh; 3. an upper screen; 4. a support bottom frame; 5. a first support connection block; 6. a first support loop bar; 7. a collar; 8. an elastic screen; 9. a second support loop bar; 10. a third support loop bar; 11. fastening a screw rod; 12. a butterfly nut; 13. connecting the ear plates; 14. a roller; 15. a first connecting strut; 16. a second connecting strut; 17. a third connecting strut; 18. a fourth connecting strut; 19. and a second support connection block.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1-4, the present invention is a multiple screen assembly for sand screening equipment in construction engineering, including a lower layer screen 1, a middle layer screen 2, and an upper layer screen 3, wherein the lower layer screen 1 includes a support bottom frame 4, a first support connection block 5, a first support loop bar 6, a loop 7, an elastic screen 8, a second support loop bar 9, a third support loop bar 10, a fastening screw 11, a butterfly nut 12, a connection lug plate 13, a roller 14, a first connection strut 15, a second connection strut 16, a third connection strut 17, a fourth connection strut 18, and a second support connection block 19, an upper side wall of the support bottom frame 4 is fixedly connected with a lower side wall of the first support connection block 5, an upper side wall of the first support connection block 5 is fixedly connected with a lower end of a circumferential side wall of the first support loop bar 6, the first support loop bar 6 is slidably connected with a rear end of the elastic screen 8 through the loop 7, the elastic screen mesh 8 is made of elastic materials, the elastic screen mesh 8 is arranged in a honeycomb structure, a first supporting loop bar 6 is connected with the rear end of a second supporting loop bar 9 in a sliding mode through a loop bar 7, the front end of the second supporting loop bar 9 is connected with the peripheral side wall of a third supporting loop bar 10 in a sliding mode through the loop bar 7, the front side of the middle of the peripheral side wall of the third supporting loop bar 10 is fixedly connected with the rear end of a fastening screw 11, the front end of the fastening screw 11 is connected with a butterfly nut 12 in a riveting mode, the front end of the second supporting loop bar 9 is fixedly connected with the rear side wall of a connecting lug plate 13, the connecting lug plate 13 is rotatably connected with a roller 14 through a rotating shaft, when the screen hole of the elastic screen mesh 8 needs to be reduced, the butterfly nut 12 is screwed to the front end of the fastening screw 11, then the third supporting loop bar 10 moves to the rear end, the loop bar 7 on the elastic screen mesh 8 moves towards two sides along the first supporting loop bar 6 and the second supporting loop bar 9, the second supporting loop bars 9 move towards two sides along the first supporting loop bars 6, the loop bars 7 at the left end and the right end of the elastic screen 8 gather towards the middle along the second supporting loop bars 9, the rollers 14 move towards two sides, the elastic screen 8 gradually deforms, the meshes of the elastic screen 8 further become smaller, then the butterfly nuts 12 are screwed towards the rear end of the fastening screw rod 11 for fixing, when the meshes of the elastic screen 8 need to be enlarged, the third supporting loop bars 10 move towards the front end, the loop bars 7 on the elastic screen 8 gather towards the middle along the first supporting loop bars 6 and the second supporting loop bars 9, the second supporting loop bars 9 gather towards the middle along the first supporting loop bars 6, the loop bars 7 at the left end and the right end of the elastic screen 8 move towards two sides along the second supporting loop bars 9, the rollers 14 move towards the inner sides, the elastic screen 8 gradually deforms, the meshes of the elastic screen 8 further become larger, and then the butterfly nuts 12 are screwed towards the rear end of the fastening screw rod 11 for fixing.
As shown in fig. 1, the lower layer screen 1, the middle layer screen 2 and the upper layer screen 3 are arranged in an equal proportion structure, the lower layer screen 1, the middle layer screen 2 and the upper layer screen 3 are arranged in a structure that is sequentially reduced from bottom to top, when sand is added to the upper layer screen 3, if the sand scattering phenomenon occurs, sand particles can be sprinkled onto the middle layer screen 2 and the lower layer screen 1 on the outer side, the sand particles can not directly fall onto the ground, the sand particles falling onto the middle layer screen 2 and discarded materials screened by the middle layer screen 2 are recycled together, the sand particles falling onto the lower layer screen 1 and discarded materials screened by the lower layer screen 1 are recycled together, in other procedures, the upper side wall of the lower layer screen 1 is fixedly connected with the lower side wall of the middle layer screen 2 through a first connecting support rod 15, the upper side wall of the middle layer screen 2 is fixedly connected with the side wall of the upper layer screen 3 through a second connecting support rod 16, the upper side wall of the lower layer screen 1 is fixedly connected with the lower side wall of the upper layer screen 2 through a third connecting support rod 17, the upper side wall of the screen 2 is connected with a fourth connecting rod 18 and a fourth connecting support rod 16 for supporting the upper layer screen 2 and is connected with the lower layer screen 2 and a fourth connecting support rod 18.
As shown in fig. 2 and 4, the left and right ends of the elastic screen 8 are slidably connected to the peripheral side wall of the second support sleeve rod 9 through the lantern ring 7, the lantern rings 7 at the left and right ends of the elastic screen 8 are fixed at the front and rear ends of the elastic screen 8, the lantern rings 7 at the front and rear ends of the elastic screen 8 are fixed at the positions near the middle of the front and rear ends of the elastic screen 8, the front end of the elastic screen 8 is slidably connected to the peripheral side wall of the third support sleeve rod 10 through the lantern ring 7, the second support sleeve rods 9 are provided with two support sleeve rods, and the upper end of the first support connection block 5 is in an arc-shaped structure.
Wherein as shown in fig. 3, the last lateral wall that supports underframe 4 and the lower lateral wall fixed connection of second support connecting block 19, fastening screw 11 is the rear side wall structure setting that runs through second support connecting block 19, and the through-hole has been seted up to the rear side wall of second support connecting block 19, and the through-hole is passed to fastening screw 11's front end.
One specific application of this embodiment is: firstly, when the screen hole of the elastic screen 8 needs to be reduced, firstly, the butterfly nut 12 is screwed to the front end of the fastening screw 11, then the third support loop bar 10 is moved to the rear end, the loop 7 on the elastic screen 8 moves to two sides along the first support loop bar 6 and the second support loop bar 9, the second support loop bar 9 moves to two sides along the first support loop bar 6, the loop 7 at the left end and the right end of the elastic screen 8 gathers to the middle along the second support loop bar 9, the roller 14 moves to two sides, the elastic screen 8 is gradually deformed, the screen hole of the elastic screen 8 is further reduced, then the butterfly nut 12 is screwed to the rear end of the fastening screw 11 for fixing, otherwise, the screen hole of the elastic screen 8 is enlarged, secondly, when the screen hole of the elastic screen 8 is blocked, the third support loop bar 10 is moved forwards, the lantern ring 7 on the elastic screen 8 folds to the middle along the first supporting loop bar 6, the second supporting loop bar 9 folds to the middle along the first supporting loop bar 6, the elastic screen 8 gradually deforms, the meshes of the elastic screen 8 further enlarge, after the meshes of the elastic screen 8 enlarge, the sand grains blocking the meshes can drop, the third step, when sand is added to the upper screen 3, if the sand scattering phenomenon occurs, the sand grains can be poured on the middle screen 2 at the outer side and the lower screen 1, the sand grains can not directly drop to the ground, the sand grains dropping on the middle screen 2 and the discarded material screened by the middle screen 2 are recycled together, the sand grains dropping on the lower screen 1 and the discarded material screened by the lower screen 1 are recycled together, and are used in other processes.
The present invention is not limited to the above embodiments, and any modifications, equivalent substitutions and improvements of some technical features, which are made to the technical solutions described in the above embodiments, are all within the scope of the present invention.
Claims (7)
1. The utility model provides a multiple screen assembly for screening sand equipment among building engineering, includes lower floor's screen cloth (1), middle level screen cloth (2), upper screen cloth (3), its characterized in that: lower floor's screen cloth (1) is including supporting underframe (4), support the lower lateral wall fixed connection of the last lateral wall of underframe (4) and first supporting connection piece (5), the lower extreme fixed connection of the all lateral walls of the last lateral wall of first supporting connection piece (5) and first supporting loop bar (6), first supporting loop bar (6) are through the rear end sliding connection of lantern ring (7) and elastic screen cloth (8), first supporting loop bar (6) are through the rear end sliding connection of lantern ring (7) and second supporting loop bar (9), the front end of second supporting loop bar (9) is through the all lateral wall sliding connection of lantern ring (7) and third supporting loop bar (10), the front side of the all lateral walls's of third supporting loop bar (10) middle part and the rear end fixed connection of fastening screw (11), the front end and the butterfly nut (12) riveting are connected, the front end and the connecting plate (13) of second supporting loop bar (9) are connected through gyro wheel (13) rotation otic placode (13).
2. The multiple screen assembly for the sand screening equipment in the constructional engineering as claimed in claim 1, wherein the lower layer screen (1), the middle layer screen (2) and the upper layer screen (3) are arranged in an equal proportion structure, and the lower layer screen (1), the middle layer screen (2) and the upper layer screen (3) are arranged in a sequentially reduced structure from bottom to top.
3. The multiple screen assembly for the sand screening device in the building engineering as claimed in claim 1, wherein the upper side wall of the lower screen (1) is fixedly connected with the side wall of the middle screen (2) through a first connecting strut (15), and the upper side wall of the middle screen (2) is fixedly connected with the side wall of the upper screen (3) through a second connecting strut (16).
4. The multiple screen assembly for the sand screening device in the building engineering as claimed in claim 1, wherein the upper side wall of the lower screen (1) is fixedly connected with the lower side wall of the middle screen (2) through a third connecting strut (17), and the upper side wall of the middle screen (2) is fixedly connected with the lower side wall of the upper screen (3) through a fourth connecting strut (18).
5. The multiple screen assembly for the sand screening equipment in the constructional engineering as claimed in claim 1, wherein the left and right ends of the elastic screen (8) are connected with the peripheral side wall of the second support sleeve rod (9) through a lantern ring (7) in a sliding manner, and the front end of the elastic screen (8) is connected with the peripheral side wall of the third support sleeve rod (10) through a lantern ring (7) in a sliding manner.
6. The multiple screen assembly for the sand screening device in the building engineering as claimed in claim 1, wherein the upper side wall of the supporting bottom frame (4) is fixedly connected with the lower side wall of the second supporting connection block (19), and the fastening screw (11) is arranged in a rear side wall structure penetrating through the second supporting connection block (19).
7. The multiple screen assembly for the sand screening equipment in the constructional engineering as claimed in claim 1, wherein there are two second support sleeve rods (9), and the upper end of the first support connecting block (5) is arranged in a circular arc structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110199763.3A CN112974238B (en) | 2021-02-23 | 2021-02-23 | A multiple screen cloth subassembly for screening sand equipment among building engineering |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110199763.3A CN112974238B (en) | 2021-02-23 | 2021-02-23 | A multiple screen cloth subassembly for screening sand equipment among building engineering |
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| CN112974238A CN112974238A (en) | 2021-06-18 |
| CN112974238B true CN112974238B (en) | 2022-11-22 |
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| CN114308281B (en) * | 2021-12-30 | 2023-05-05 | 四川德成动物保健品有限公司 | Based on traditional chinese medicine draws and uses device |
| CN117531689B (en) * | 2024-01-09 | 2024-03-08 | 山东银箭金属颜料有限公司 | Screening plant for metallic pigment |
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| CA2756965C (en) * | 2010-11-08 | 2019-01-15 | Terex Usa, Llc | Vibrating screen suspension systems |
| CN207013282U (en) * | 2017-05-27 | 2018-02-16 | 上海路盾道路材料有限公司 | A kind of screening plant for asphalt-regenerating |
| CN108057607A (en) * | 2017-12-13 | 2018-05-22 | 河南沃德智能化工程有限公司 | Agricultural three-level reciprocating sieve |
| CN208449855U (en) * | 2018-05-29 | 2019-02-01 | 山西夜明珠科技有限公司 | A kind of glass micro-bead screening apparatus |
| CN209318155U (en) * | 2018-10-26 | 2019-08-30 | 金华职业技术学院 | A kind of classified screening device of regenerative bone material by concrete |
| CN109967156B (en) * | 2019-04-16 | 2020-11-03 | 扬州鑫禾源机械有限公司 | Rice hopper for feeding and discharging of automatic rice selling machine and using method thereof |
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