CN212493889U - Granular asphalt screening machine - Google Patents
Granular asphalt screening machine Download PDFInfo
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- CN212493889U CN212493889U CN202020927224.8U CN202020927224U CN212493889U CN 212493889 U CN212493889 U CN 212493889U CN 202020927224 U CN202020927224 U CN 202020927224U CN 212493889 U CN212493889 U CN 212493889U
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Abstract
The utility model discloses a graininess pitch sieve separator, including bottom plate, underframe, pneumatic cylinder and screening frame, its characterized in that: the bottom plate is arranged on the support, the vertical plate is vertically arranged on the bottom plate, the positioning plates are arranged on the outer walls of the two ends of the bottom frame, the hydraulic cylinder is arranged on the back surface of the bottom plate, the connecting plates are arranged on the outer walls of the two opposite sides of the screening frame, the bottom of the screening frame is provided with a sieve mesh, the back surface of the connecting plate is provided with a connecting cylinder, and the front surface of the connecting plate is vertically provided with a connecting column. The utility model discloses all be provided with the spring between connecting cylinder and reference column and connecting cylinder and spliced pole, improved the damping performance between connecting cylinder and reference column and connecting cylinder and the spliced pole through the spring, make underframe, screening frame reciprocate the in-process and have buffer performance, the granular asphalt of being convenient for rolls fully in underframe or screening frame, can carry out abundant screening processing to granular asphalt, improves granular asphalt's screening efficiency and screening quality.
Description
Technical Field
The utility model relates to a pitch processing technology field specifically is a graininess pitch sieve separator.
Background
Petroleum asphalt is a product of crude oil processing, and is a black or dark brown viscous liquid, semisolid or solid at normal temperature, mainly containing hydrocarbon and non-hydrocarbon derivatives soluble in trichloroethylene, and its properties and composition vary with crude oil source and production method. In order to improve the utilization efficiency of granular asphalt, the granular asphalt needs to be screened in the production process, and the existing granular asphalt screening device has the problems of low working efficiency, incapability of fully screening the granular asphalt and poor screening effect.
Disclosure of Invention
The utility model aims at providing a work efficiency to the existence of current graininess pitch sieving mechanism is low, can not carry out abundant screening, the not good problem of screening effect to graininess pitch, provide a structural design is reasonable, work efficiency is high, operating personnel intensity of labour is little, can carry out abundant screening, the effectual graininess pitch sieve separator of screening to graininess pitch.
The utility model provides a technical scheme that technical problem taken does:
the utility model provides a granular asphalt screening machine, includes bottom plate, underframe, pneumatic cylinder and screening frame, its characterized in that: the bottom plate is arranged on the bracket, the vertical plate is vertically arranged on the bottom plate, the fixing plate is vertically arranged on the vertical plate, the bottom plate is connected with the bracket and the vertical plate through welding, the connecting strength between the bottom plate and the bracket and the vertical plate is enhanced, the structural strength of the screening machine is further improved, the outer walls of two ends of the bottom frame are provided with the positioning plates, the bottom of the bottom frame is provided with the blanking groove, one positioning plate is provided with the connecting shaft and the positioning column, the other positioning plate is provided with the limiting plate and the positioning column, the connecting shaft penetrates out of the positioning plates, the limiting groove is arranged on the limiting plate, the hydraulic cylinder is arranged on the back surface of the bottom plate, the hydraulic cylinder is provided with a piston rod, the piston rod vertically extends out from the upper part of the bottom plate, the limiting rod is arranged on the piston rod, the installation efficiency and the stability after installation of the hydraulic cylinder are improved, the stability of the hydraulic cylinder in the working process is enhanced, the outer walls of two opposite sides of the screening frame are provided with connecting plates, the bottom of the screening frame is provided with sieve holes, the back of the connecting plates is provided with a connecting cylinder, the front of the connecting plates is vertically provided with a connecting column, the connecting cylinder is connected with a positioning column, the hydraulic cylinder and a piston rod push a limiting rod to ascend or descend, so that the limiting rod pushes a limiting plate and a positioning plate to ascend or descend, the positioning plate at the other end of the bottom frame rotates between the fixing plate and the fixing plate through a connecting shaft, the bottom frame can be in a horizontal state or a state with one end higher and one end lower, the positioning plate drives the screening frame to ascend or move through the positioning column and the connecting cylinder, the screening frame can also be in a horizontal, the granular asphalt in the screening frame or the bottom frame is conveniently screened, the screening efficiency and the screening quality of the granular asphalt are improved, and the labor intensity of operators is reduced.
Preferably, the bottom plate on be provided with the workbin, be convenient for collect the graininess pitch that the charging chute falls out on following the underframe through the workbin, avoid graininess pitch to scatter at will, reduce graininess pitch's waste.
Preferably, the underframe pass through the locating plate, the connecting axle sets up to the structure that can rotate between fixed plate and fixed plate, the pneumatic cylinder, the piston rod promotes the gag lever post and rises or descends, make gag lever post promote limiting plate and locating plate and rise or descend, the locating plate that makes the underframe other end passes through the connecting axle and rotates between fixed plate and fixed plate, make the underframe can present the state that level or one end height one end is low, through the reference column, the connecting cylinder makes the locating plate drive the screening frame and rises or remove, also enable the screening frame and present the state that level or one end height one end is low, be convenient for granular asphalt makes a round trip to roll in screening frame or underframe, be convenient for carry out screening process to the granular asphalt in screening frame or the underframe, the screening efficiency and the screening quality of granular asphalt have been improved, operating personnel's intensity of.
Preferably, the gag lever post on the piston rod set up to the structure that can remove in the spacing groove, the pneumatic cylinder, the piston rod promotes the gag lever post and rises or descend, make gag lever post promote limiting plate and locating plate and rise or descend, the locating plate that makes the underframe other end passes through the connecting axle and rotates between fixed plate and fixed plate, make the underframe can present the state that level or the high one end of one end is low, the spacing groove can provide the space for the removal of gag lever post, the locating plate of being convenient for reciprocates, make the underframe, the screening frame presents the state that level or the high one end of one end is low, be convenient for granular asphalt makes a round trip to roll in screening frame or underframe, be convenient for carry out screening process to granular asphalt in screening frame or the underframe, the screening efficiency and the screening quality of.
Preferably, the number of the screening frames is set to be 2-6, the mesh number of the screening frames is sequentially increased from top to bottom, the upper screening frame and the lower screening frame are connected through the connecting cylinders and the connecting columns, the connecting cylinders on the connecting plates of the screening frames at the bottommost layer are sleeved with the positioning columns on the positioning plates, the upper adjacent screening frame and the lower adjacent screening frame are connected through the connecting cylinders and the connecting columns, the screening frames can classify and screen granular asphalt with different fineness, and the screening efficiency and the screening quality of the granular asphalt are improved.
Preferably, all be provided with the spring between connecting cylinder and reference column and connecting cylinder and the spliced pole, improved the shock attenuation performance between connecting cylinder and reference column and connecting cylinder and the spliced pole through the spring, make underframe, screening frame reciprocate the in-process and have buffer performance, the granular pitch of being convenient for rolls in underframe or screening frame fully, can carry out abundant screening processing to granular pitch, improves granular pitch's screening efficiency and screening quality.
Has the advantages that: the utility model discloses with the pneumatic cylinder, the piston rod promotes the gag lever post and rises or descends, make gag lever post promote limiting plate and locating plate and rise or descend, the locating plate that makes the underframe other end passes through the connecting axle and rotates between fixed plate and fixed plate, make the underframe can present the state that level or one end height one end is low, through the reference column, the connecting cylinder makes the locating plate drive the screening frame and rises or remove, also enable the screening frame and present the state that level or one end height one end is low, the granular asphalt of being convenient for makes a round trip to roll in screening frame or underframe, be convenient for carry out the screening process to the granular asphalt in screening frame or the underframe, the screening efficiency and the screening quality of granular asphalt have been improved, operating personnel's intensity of labour has.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of a part of the structure of the present invention, illustrating the connection structure of the bottom frame and the vertical plate.
Fig. 3 is a schematic view of a part of the structure of the present invention, illustrating the connection structure of the screening frame and the connection plate.
Fig. 4 is a schematic view of a part of the structure of the present invention, illustrating the connection structure of the limiting rod and the limiting plate.
Fig. 5 is a schematic view of a part of the structure of the present invention, illustrating the connection structure of the connecting cylinder and the connecting column.
Fig. 6 is a schematic diagram of another embodiment of the present invention.
In the figure: 1. the automatic feeding device comprises a bottom plate, a bottom frame, a hydraulic cylinder, a screening frame, a support, a vertical plate, a material box, a fixing plate, a positioning plate, a feeding chute, a positioning column, a connecting shaft, a limiting plate, a limiting groove, a piston rod, a limiting rod, a connecting plate, a screen hole, a connecting cylinder, a connecting column, a spring, a guide plate, a traveling wheel and a brake device, wherein the bottom plate, the bottom frame, the hydraulic cylinder, the screening frame, the support, the vertical plate, the material box, the fixing plate, the positioning plate, the.
Detailed Description
The present invention will be described in more detail with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in the attached figures 1-5, the granular asphalt screening machine comprises a bottom plate 1, a bottom frame 2, a hydraulic cylinder 3 and a screening frame 4, and is characterized in that: the bottom plate 1 is arranged on the bracket 5, the vertical plate 6 is vertically arranged on the bottom plate 1, the fixing plate 8 is vertically arranged on the vertical plate 6, the bottom plate 1 is connected with the bracket 5 and the vertical plate 6 through welding, the connecting strength between the bottom plate 1 and the bracket 5 and the vertical plate 6 is enhanced, the structural strength of the screening machine is further improved, the outer walls of two ends of the bottom frame 2 are provided with the positioning plates 9, the bottom of the bottom frame 2 is provided with the blanking groove 10, one positioning plate 9 is provided with the connecting shaft 12 and the positioning column 11, the other positioning plate 9 is provided with the limiting plate 13 and the positioning column 11, the connecting shaft 12 penetrates out of the positioning plate 9, the limiting groove 14 is arranged on the limiting plate 13, the hydraulic cylinder 3 is arranged on the back surface of the bottom plate 1, the piston rod 15 is arranged on the hydraulic cylinder 3, the piston rod 15 vertically extends out from the upper part of, the limiting rod 16 penetrates out of the limiting groove 14, the hydraulic cylinder 3 is installed on the bottom plate 1 through bolts, the installation efficiency and the stability after installation of the hydraulic cylinder 3 are improved, the stability of the hydraulic cylinder 3 in the working process is enhanced, the outer walls of two opposite sides of the screening frame 4 are provided with connecting plates 17, the bottom of the screening frame 4 is provided with a sieve mesh 18, the back of the connecting plate 17 is provided with a connecting cylinder 19, the front of the connecting plate 17 is vertically provided with a connecting column 20, the connecting cylinder 19 is connected with a positioning column 11, the hydraulic cylinder 3 and a piston rod 15 push the limiting rod 16 to ascend or descend, the limiting rod 16 pushes the limiting plate 13 and the positioning plate 9 to ascend or descend, the positioning plate 9 at the other end of the bottom frame 2 rotates between the fixing plate 8 and the fixing plate 8 through a connecting shaft 12, the bottom frame 2 can be in a horizontal state or a state with one end higher and the other end lower, the, the screening frame 4 can be in a horizontal state or a state that one end is high and the other end is low, granular asphalt can conveniently roll back and forth in the screening frame 4 or the bottom frame 2, the granular asphalt in the screening frame 4 or the bottom frame 2 can be conveniently screened, the screening efficiency and the screening quality of the granular asphalt are improved, and the labor intensity of operators is reduced.
Preferably, bottom plate 1 on be provided with workbin 7, be convenient for collect the graininess pitch that falls out from underframe 2 upper chute 10 through workbin 7, avoid graininess pitch to scatter at will, reduce graininess pitch's waste.
Preferably, the bottom frame 2 is arranged to be a structure capable of rotating between the fixed plate 8 and the fixed plate 8 through the positioning plate 9 and the connecting shaft 12, the hydraulic cylinder 3 and the piston rod 15 push the limiting rod 16 to ascend or descend, so that the limiting rod 16 pushes the limiting plate 13 and the positioning plate 9 to ascend or descend, the positioning plate 9 at the other end of the bottom frame 2 rotates between the fixed plate 8 and the fixed plate 8 through the connecting shaft 12, so that the bottom frame 2 can be in a horizontal state or a state that one end is higher and the other end is lower, make locating plate 9 drive the sieve selection frame 4 through reference column 11, connecting cylinder 19 and rise or remove, also can make sieve selection frame 4 present the level or the state that one end is high and the end is low, be convenient for granular asphalt makes a round trip to roll in sieve selection frame 4 or underframe 2, be convenient for carry out the screening process to the granular asphalt in sieve selection frame 4 or underframe 2, improved granular asphalt's screening efficiency and screening quality, reduced operating personnel's intensity of labour.
Preferably, the limiting rod 16 on the piston rod 15 is set to be a structure capable of moving in the limiting groove 14, the hydraulic cylinder 3 and the piston rod 15 push the limiting rod 16 to ascend or descend, the limiting rod 16 pushes the limiting plate 13 and the positioning plate 9 to ascend or descend, the positioning plate 9 at the other end of the bottom frame 2 is enabled to rotate between the fixing plate 8 and the fixing plate 8 through the connecting shaft 12, the bottom frame 2 can be enabled to be in a horizontal state or a state with a high end and a low end, the limiting groove 14 can provide a space for movement of the limiting rod 16, the positioning plate 9 can conveniently move up and down, the bottom frame 2 and the screening frame 4 are enabled to be in a horizontal state or a state with a high end and a low end, granular asphalt can conveniently roll back and forth in the screening frame 4 or the bottom frame 2, screening treatment can be conveniently carried out on the granular asphalt in the screening.
Preferably, the quantity of screening frame 4 set up to 4, increase screening frame 4's sieve mesh 18 mesh number by last down in proper order, and will two upper and lower screening frames 4 pass through connecting cylinder 19, spliced pole 20 is connected, establish connecting cylinder 19 cover on the connecting plate 17 of the screening frame 4 of bottommost layer reference column 11 on the locating plate 9, pass through connecting cylinder 19, spliced pole 20 with two upper and lower adjacent screening frames 4 and connect, a plurality of screening frames 4 can carry out the categorised screening of different fineness to granular asphalt, improve granular asphalt's screening efficiency and screening quality.
Preferably, springs 21 are arranged between the connecting cylinder 19 and the positioning column 11 and between the connecting cylinder 19 and the connecting column 20, the damping performance between the connecting cylinder 19 and the positioning column 11 and between the connecting cylinder 19 and the connecting column 20 is improved through the springs 21, so that the bottom frame 2 and the screening frame 4 have buffering performance in the up-and-down moving process, granular asphalt can roll sufficiently in the bottom frame 2 or the screening frame 4, the granular asphalt can be screened sufficiently, and the screening efficiency and the screening quality of the granular asphalt are improved.
Example two:
as shown in fig. 6: the utility model provides a granular asphalt screening machine, includes bottom plate 1, underframe 2, pneumatic cylinder 3 and screen frame 4, its characterized in that: the bottom plate 1 is arranged on the bracket 5, the vertical plate 6 is vertically arranged on the bottom plate 1, the fixing plate 8 is vertically arranged on the vertical plate 6, the bottom plate 1 is connected with the bracket 5 and the vertical plate 6 through welding, the connecting strength between the bottom plate 1 and the bracket 5 and the vertical plate 6 is enhanced, the structural strength of the screening machine is further improved, the outer walls of two ends of the bottom frame 2 are provided with the positioning plates 9, the bottom of the bottom frame 2 is provided with the blanking groove 10, one positioning plate 9 is provided with the connecting shaft 12 and the positioning column 11, the other positioning plate 9 is provided with the limiting plate 13 and the positioning column 11, the connecting shaft 12 penetrates out of the positioning plate 9, the limiting groove 14 is arranged on the limiting plate 13, the hydraulic cylinder 3 is arranged on the back surface of the bottom plate 1, the piston rod 15 is arranged on the hydraulic cylinder 3, the piston rod 15 vertically extends out from the upper part of, the limiting rod 16 penetrates out of the limiting groove 14, the hydraulic cylinder 3 is installed on the bottom plate 1 through bolts, the installation efficiency and the stability after installation of the hydraulic cylinder 3 are improved, the stability of the hydraulic cylinder 3 in the working process is enhanced, the outer walls of two opposite sides of the screening frame 4 are provided with connecting plates 17, the bottom of the screening frame 4 is provided with a sieve mesh 18, the back of the connecting plate 17 is provided with a connecting cylinder 19, the front of the connecting plate 17 is vertically provided with a connecting column 20, the connecting cylinder 19 is connected with a positioning column 11, the hydraulic cylinder 3 and a piston rod 15 push the limiting rod 16 to ascend or descend, the limiting rod 16 pushes the limiting plate 13 and the positioning plate 9 to ascend or descend, the positioning plate 9 at the other end of the bottom frame 2 rotates between the fixing plate 8 and the fixing plate 8 through a connecting shaft 12, the bottom frame 2 can be in a horizontal state or a state with one end higher and the other end lower, the, the screening frame 4 can be in a horizontal state or a state that one end is high and the other end is low, granular asphalt can conveniently roll back and forth in the screening frame 4 or the bottom frame 2, the granular asphalt in the screening frame 4 or the bottom frame 2 can be conveniently screened, the screening efficiency and the screening quality of the granular asphalt are improved, and the labor intensity of operators is reduced.
Preferably, bottom plate 1 on be provided with workbin 7, be convenient for collect the graininess pitch that falls out from underframe 2 upper chute 10 through workbin 7, avoid graininess pitch to scatter at will, reduce graininess pitch's waste.
Preferably, the bottom frame 2 is arranged to be a structure capable of rotating between the fixed plate 8 and the fixed plate 8 through the positioning plate 9 and the connecting shaft 12, the hydraulic cylinder 3 and the piston rod 15 push the limiting rod 16 to ascend or descend, so that the limiting rod 16 pushes the limiting plate 13 and the positioning plate 9 to ascend or descend, the positioning plate 9 at the other end of the bottom frame 2 rotates between the fixed plate 8 and the fixed plate 8 through the connecting shaft 12, so that the bottom frame 2 can be in a horizontal state or a state that one end is higher and the other end is lower, make locating plate 9 drive the sieve selection frame 4 through reference column 11, connecting cylinder 19 and rise or remove, also can make sieve selection frame 4 present the level or the state that one end is high and the end is low, be convenient for granular asphalt makes a round trip to roll in sieve selection frame 4 or underframe 2, be convenient for carry out the screening process to the granular asphalt in sieve selection frame 4 or underframe 2, improved granular asphalt's screening efficiency and screening quality, reduced operating personnel's intensity of labour.
Preferably, the limiting rod 16 on the piston rod 15 is set to be a structure capable of moving in the limiting groove 14, the hydraulic cylinder 3 and the piston rod 15 push the limiting rod 16 to ascend or descend, the limiting rod 16 pushes the limiting plate 13 and the positioning plate 9 to ascend or descend, the positioning plate 9 at the other end of the bottom frame 2 is enabled to rotate between the fixing plate 8 and the fixing plate 8 through the connecting shaft 12, the bottom frame 2 can be enabled to be in a horizontal state or a state with a high end and a low end, the limiting groove 14 can provide a space for movement of the limiting rod 16, the positioning plate 9 can conveniently move up and down, the bottom frame 2 and the screening frame 4 are enabled to be in a horizontal state or a state with a high end and a low end, granular asphalt can conveniently roll back and forth in the screening frame 4 or the bottom frame 2, screening treatment can be conveniently carried out on the granular asphalt in the screening.
Preferably, the quantity of screening frame 4 set up to 3, increase screening frame 4's sieve mesh 18 mesh number by last down in proper order, and will two upper and lower screening frames 4 pass through connecting cylinder 19, spliced pole 20 is connected, establish connecting cylinder 19 cover on the connecting plate 17 of the screening frame 4 of bottommost layer reference column 11 on the locating plate 9, will two upper and lower adjacent screening frames 4 pass through connecting cylinder 19, spliced pole 20 is connected, a plurality of screening frames 4 can carry out the categorised screening of different fineness to granular asphalt, improve granular asphalt's screening efficiency and screening quality.
Preferably, springs 21 are arranged between the connecting cylinder 19 and the positioning column 11 and between the connecting cylinder 19 and the connecting column 20, the damping performance between the connecting cylinder 19 and the positioning column 11 and between the connecting cylinder 19 and the connecting column 20 is improved through the springs 21, so that the bottom frame 2 and the screening frame 4 have buffering performance in the up-and-down moving process, granular asphalt can roll sufficiently in the bottom frame 2 or the screening frame 4, the granular asphalt can be screened sufficiently, and the screening efficiency and the screening quality of the granular asphalt are improved.
Preferably, underframe 2 and screening frame 4 bottom all be provided with guide plate 22 to set up guide plate 22 into the toper structure, be convenient for through guide plate 22 with the graininess pitch water conservancy diversion that falls out from screening frame 4 to lower floor screening frame 4 or underframe 2 in, avoid graininess pitch to fall outside screening frame 4, underframe 2 or the magazine, be convenient for carry out the classified collection to the graininess pitch after the screening, improve graininess pitch's screening efficiency and screening quality.
Preferably, the support 5 on be provided with walking wheel 23 to be provided with brake equipment 24 on walking wheel 23, be convenient for the removal of sieve separator through walking wheel 23, brake equipment 24, reduced the intensity of labour of artifical transport, improved work efficiency.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are for convenience of description and simplicity of description only, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, consequently can not understand right the utility model discloses a restriction, the utility model discloses in relevant each part relation of connection, based on prior art, select different materials and can adopt the relation of connection who thinks to correspond, for example, select technical material and can adopt welded connection, select the stone material and can adopt the connecting piece to connect and so on.
The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.
Claims (6)
1. The utility model provides a granular asphalt screening machine, includes bottom plate, underframe, pneumatic cylinder and screening frame, its characterized in that: the bottom plate is arranged on the bracket, the vertical plate is vertically arranged on the bottom plate, the fixing plate is vertically arranged on the vertical plate, the positioning plates are arranged on the outer walls of the two ends of the bottom frame, a blanking groove is arranged at the bottom of the bottom frame, a connecting shaft and a positioning column are arranged on one positioning plate, a limiting plate and a positioning column are arranged on the other positioning plate, the connecting shaft penetrates out of the positioning plate, a limiting groove is arranged on the limiting plate, the hydraulic cylinder is arranged on the back surface of the bottom plate, a piston rod is arranged on the hydraulic cylinder, the piston rod vertically extends out from the upper part of the bottom plate, a limiting rod is arranged on the piston rod, the limiting rod penetrates out of the limiting groove, the outer walls of two opposite sides of the screening frame are provided with connecting plates, the bottom of the screening frame is provided with a screen hole, the back of the connecting plate is provided with a connecting cylinder, the front of the connecting plate is vertically provided with a connecting column, and the connecting cylinder is connected with the positioning column.
2. The granular asphalt screening machine according to claim 1, wherein: the bottom plate is provided with a material box.
3. The granular asphalt screening machine according to claim 1, wherein: the bottom frame is arranged into a structure capable of rotating between the fixed plate and the fixed plate through the positioning plate and the connecting shaft.
4. The granular asphalt screening machine according to claim 1, wherein: the limiting rod on the piston rod is arranged to be a structure capable of moving in the limiting groove.
5. The granular asphalt screening machine according to claim 1, wherein: the number of the screening frames is set to be 2-6, the mesh number of the screening frames is sequentially increased from top to bottom, and the upper screening frame and the lower screening frame are connected through the connecting cylinder and the connecting column.
6. The granular asphalt screening machine according to claim 5, wherein: springs are arranged between the connecting cylinder and the positioning column and between the connecting cylinder and the connecting column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020927224.8U CN212493889U (en) | 2020-05-28 | 2020-05-28 | Granular asphalt screening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020927224.8U CN212493889U (en) | 2020-05-28 | 2020-05-28 | Granular asphalt screening machine |
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| Publication Number | Publication Date |
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| CN212493889U true CN212493889U (en) | 2021-02-09 |
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| CN202020927224.8U Active CN212493889U (en) | 2020-05-28 | 2020-05-28 | Granular asphalt screening machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113070210A (en) * | 2021-05-13 | 2021-07-06 | 芜湖市宇恒特种钢球有限公司 | Screening device for high-precision steel ball production and operation method thereof |
-
2020
- 2020-05-28 CN CN202020927224.8U patent/CN212493889U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113070210A (en) * | 2021-05-13 | 2021-07-06 | 芜湖市宇恒特种钢球有限公司 | Screening device for high-precision steel ball production and operation method thereof |
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