CN211385709U - Spiral grading screening device - Google Patents
Spiral grading screening device Download PDFInfo
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- CN211385709U CN211385709U CN201922214288.3U CN201922214288U CN211385709U CN 211385709 U CN211385709 U CN 211385709U CN 201922214288 U CN201922214288 U CN 201922214288U CN 211385709 U CN211385709 U CN 211385709U
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Abstract
The utility model discloses a spiral grading screening device, which comprises at least two stages of screening devices, wherein the screening device is provided with a screening roller, the wall of the screening roller is provided with screening holes, spiral guide plates are arranged in the roller, the screening holes of the next stage are larger than the screening holes of the previous stage, and the spiral guide plates of the next stage and the spiral guide plates of the previous stage are in smooth transition; the screening roller is horizontally arranged and connected with a driving device; the tail part of the front-stage screening roller is connected with the rear-stage screening device through a connecting device. The utility model discloses a set up at least two-stage screening plant, the screening hole aperture of back one-level is greater than preceding one-level, through drive arrangement drive screening plant along vertical rotation to guide the material forward at the uniform velocity by the spiral guide plate, realize through the screening hole that the material is selected separately, not only screening efficiency is high, can prevent moreover that the material collision is cracked, wearing and tearing etc.. Meanwhile, the self-cleaning of the screening holes can be realized by the rotating mode, the screening holes are prevented from being accumulated by materials for a long time, and blocking is prevented.
Description
Technical Field
The utility model relates to a material separation technical field especially relates to a mainly used carries out grouping screening plant of screening to silicon material etc..
Background
In industrial production activities, especially crystalline silicon manufacturing enterprises, based on different purposes and requirements of products, and in the stages of feeding of crystal seeds for producing granular silicon and screening and grading of products, materials need to be graded and screened according to the external diameters of the materials so as to separate and sort the materials. The traditional method generally adopts manual screening, has complex operation and high cost, is easy to bring subjective factors to cause that the standards are difficult to unify, has low efficiency and is difficult to meet the requirement of large-scale industrial manufacturing. Therefore, some automatic screening devices are invented by people, and the screening efficiency can be greatly improved. However, the method for screening by utilizing the sieve with higher efficiency is mostly intermittent feeding and discharging, the screening efficiency is still not ideal enough, the problems that the materials are abraded greatly, the brittle materials are collided with each other and are easy to crack, the screening is not thorough and the like exist, and meanwhile, the screening device is easy to block the sieve holes when screening irregular particles.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to the shortcoming that prior art exists, provide one kind and realize simple structure, screening efficiency height, can protect the silicon material not fragile, the screening hole is difficult for the spiral hierarchical screening plant who blocks up, this screening plant is particularly suitable for polycrystalline silicon manufacturing industry and is used for screening silicon material.
In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a spiral classifying and screening device which characterized in that: the screening device comprises at least two stages of screening devices, wherein the screening devices are provided with screening rollers, the first stage of screening device comprises a first stage of screening roller, and the first stage of screening roller is horizontally arranged in the transverse direction and is connected with a driving device, so that the first stage of screening roller forms a structure capable of rolling along the vertical direction; a primary screening hole is formed in the wall of the primary screening roller to form a material screening structure; a primary spiral guide plate is arranged in the primary screening roller and extends towards the subsequent primary screening device to form a structure for guiding the unscreened materials to the subsequent primary screening device; a primary material receiving device is arranged below the primary screening roller to receive materials screened out from the primary screening device, and a feed opening is formed in the bottom of the primary material receiving device;
the second-stage screening device comprises a second-stage screening roller, and the second-stage screening roller is fixedly connected with the first-stage screening device through a first connecting device fixed at the tail part of the first-stage screening roller and is communicated with the first-stage screening device, so that the second-stage screening roller forms a structure capable of synchronously rotating along with the first-stage screening roller; a secondary screening hole is formed in the wall of the secondary screening roller to form a material screening structure; a secondary spiral guide plate is arranged in the secondary screening roller and extends towards the next-stage screening device to form a structure for guiding the unscreened materials to the next-stage screening device; a secondary material receiving device is arranged below the secondary screening roller to receive materials screened out from the secondary screening device, and a feed opening is formed in the bottom of the secondary material receiving device;
the aperture of the secondary screening hole is larger than that of the primary screening hole, and the secondary spiral guide plate and the primary spiral guide plate form a smooth transition structure.
Preferably, the primary screening drum forms a continuous feeding structure through a feeding pipe or a feeding belt or forms a continuous feeding structure for intermittent feeding through a hopper, and the position of the hopper is higher than that of the primary screening drum so as to form a structure that materials automatically enter the primary screening drum.
Preferably, the screening drum of each screening device is of a cylindrical, regular triangular prism, regular square prism or regular multi-prism structure, wherein the cylindrical shape is the most preferred.
Preferably, the primary spiral guide plate is vertically arranged and fixed on the inner wall of the primary screening drum; and the secondary spiral guide plate is perpendicular to the inner wall of the secondary screening roller and is fixedly arranged.
Preferably, the screening holes of each screening drum are one, two or a combination of a plurality of circular, equilateral triangle, square and regular polygon, wherein the circular shape is preferred; and the primary screening holes are uniformly distributed on the cylinder wall of the primary screening roller, and the secondary screening holes are uniformly distributed on the cylinder wall of the secondary screening roller.
Preferably, the driving device is a motor, the motor is connected with a central shaft of the primary screening roller through a gear or belt transmission mechanism, and the rear screening roller is driven to rotate together through the primary screening roller.
Or, the screening device comprises at least three stages, and the stage number of the equipment can be determined according to the actual screening requirement. Each stage of screening device has the same structure, but the aperture of the screening hole of the next stage of screening device is larger than that of the previous stage of screening device, and the spiral guide plate of the next stage of screening device is in smooth connection transition with the spiral guide plate of the previous stage of screening device; and a second connecting device is arranged at the tail part of the second-stage screening device to be connected with the next-stage screening device, and so on.
Preferably, the rotating speed of the screening drum of the screening device is 0.1r/min-100r/min, and the screening drum rotates at a constant speed, so that the materials can be further protected from being damaged easily.
Preferably, the connecting device between two adjacent stages of screening devices realizes the connection and fixation of the two stages of screening devices through screwing, quick-connection buckles or flange connection.
Preferably, the parts of the screening drum and the spiral guide plate of each stage of screening device, and each material receiving device, which can contact the screened materials, are made of fluororubber, polytetrafluoroethylene or polyurethane materials.
The utility model discloses a set up at least two-stage screening plant, the screening hole aperture of back one-level is greater than preceding one-level, through drive arrangement drive screening plant along vertical rotation to guide the material forward at the uniform velocity by the spiral guide plate, realize through the screening hole that the material is selected separately, not only screening efficiency is high, can prevent moreover that the material collision is cracked, wearing and tearing etc.. Meanwhile, the rotation mode can realize self-cleaning of the screening holes, avoid the long-time accumulation of materials on the screening holes and prevent blockage; in addition, the screening device is simple in structure, convenient to operate, uniform in standard, easy to realize and high in practicability.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1 is a primary screening device, 11 is a primary screening roller, 12 is a primary screening hole, 13 is a primary spiral guide plate, 2 is a secondary screening device, 21 is a secondary screening roller, 22 is a secondary screening hole, 23 is a secondary spiral guide plate, 3 is a hopper, 31 is a feeding pipe, 4 is a first connecting device, 5 is a second connecting device, 6 is a primary receiving device, 61 is a feed opening, 7 is a secondary receiving device, and 71 is a feed opening.
Detailed Description
In this embodiment, referring to fig. 1, the spiral grading and screening device includes at least two stages of screening devices, each of the screening devices has a screening drum, wherein the first stage of screening device 1 includes a first stage of screening drum 11, and the first stage of screening drum 11 is horizontally disposed in a transverse direction and connected to a driving device (not shown), so that the first stage of screening drum 11 forms a structure capable of rolling in a vertical direction; a primary screening hole 12 is formed in the wall of the primary screening roller 11 to form a material screening structure; a primary spiral guide plate 13 is arranged inside the primary screening roller 11, and the primary spiral guide plate 13 extends towards the next primary screening device to form a structure for guiding unscreened materials to the next primary screening device; a primary material receiving device 6 is arranged below the primary screening roller 11 to receive materials screened out from the primary screening device 1, and a feed opening 61 is formed in the bottom of the primary material receiving device 6;
the second-stage screening device 2 comprises a second-stage screening roller 21, the second-stage screening roller 21 is fixedly connected with the first-stage screening device 1 through a first connecting device 4 fixed at the tail of the first-stage screening roller 11 and communicated with the first-stage screening device, so that the second-stage screening roller 21 can form a structure capable of synchronously rotating along with the first-stage screening roller 11; a secondary screening hole 22 is formed in the wall of the secondary screening roller 21 to form a material screening structure; a secondary spiral guide plate 23 is arranged in the secondary screening roller 21, and the secondary spiral guide plate 23 extends towards the next-stage screening device to form a structure for guiding unscreened materials to the next-stage screening device; a secondary material receiving device 7 is arranged below the secondary screening roller 21 to receive materials screened out from the secondary screening device 2, and a feed opening 71 is arranged at the bottom of the secondary material receiving device 7;
the aperture of the secondary screening hole 22 is larger than that of the primary screening hole 12, and the secondary spiral guide plate 23 and the primary spiral guide plate 13 form a smooth transition structure, so that materials can smoothly enter the next screening device.
The primary screening roller 11 continuously feeds materials through a feeding pipe 31 (or a feeding belt) or intermittently feeds materials through a hopper 3, and the position of the hopper 3 is higher than that of the primary screening roller 11, so that the materials automatically enter the primary screening roller 11.
The screening drum of each screening device is of a cylindrical, regular triangular prism-shaped, regular square prism-shaped or regular multi-prism-shaped structure, wherein the cylindrical shape is the best.
The primary spiral guide plate 13 is vertically arranged and fixed on the inner wall of the primary screening roller 11; the secondary spiral guide plate 23 is vertically arranged and fixed on the inner wall of the secondary screening roller 21.
The screening holes of each screening roller are one, two or a plurality of combinations of circles, equilateral triangles, squares and regular polygons, wherein the circle is better; and the primary screening holes 12 are uniformly arranged on the wall of the primary screening drum 11, and the secondary screening holes 22 are uniformly arranged on the wall of the secondary screening drum 21.
The driving device is a motor, which is connected with a central shaft (not shown) of the primary screening roller 11 through a gear or belt transmission mechanism, and the rear screening roller is driven to rotate together through the primary screening roller 11.
Or, the screening device comprises at least three stages, and the stage number of the equipment can be determined according to the actual screening requirement. Each stage of screening device has the same structure, but the aperture of the screening hole of the next stage of screening device is larger than that of the previous stage of screening device, and the spiral guide plate of the next stage of screening device is in smooth connection transition with the spiral guide plate of the previous stage of screening device; and a second connecting device 5 is arranged at the tail part of the second-stage screening device 2 to be connected with a next-stage screening device, and the like.
The rotating speed of each screening roller is 0.1r/min-100r/min, and the screening rollers rotate at a constant speed, so that the materials are further protected from being damaged easily.
The connecting devices between two adjacent stages of screening devices are connected through screwing screws (quick-connection buckles or flanges can also be used) to realize the connection and fixation of the two stages of screening devices.
The parts of the screening roller, the spiral guide plate, the material receiving devices and the like of each stage of screening device, which can contact the screened materials, are made of fluororubber (or polytetrafluoroethylene or polyurethane).
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, i.e. the present invention is intended to cover all equivalent variations and modifications within the scope of the present invention.
Claims (10)
1. The utility model provides a spiral classifying and screening device which characterized in that: the screening device comprises at least two stages of screening devices, wherein the screening devices are provided with screening rollers, the first stage of screening device comprises a first stage of screening roller, and the first stage of screening roller is horizontally arranged in the transverse direction and is connected with a driving device, so that the first stage of screening roller forms a structure capable of rolling along the vertical direction; a primary screening hole is formed in the wall of the primary screening roller to form a material screening structure; a primary spiral guide plate is arranged in the primary screening roller and extends towards the subsequent primary screening device to form a structure for guiding the unscreened materials to the subsequent primary screening device; a primary material receiving device is arranged below the primary screening roller to receive materials screened out from the primary screening device, and a feed opening is formed in the bottom of the primary material receiving device;
the second-stage screening device comprises a second-stage screening roller, and the second-stage screening roller is fixedly connected with the first-stage screening device through a first connecting device fixed at the tail part of the first-stage screening roller and is communicated with the first-stage screening device, so that the second-stage screening roller forms a structure capable of synchronously rotating along with the first-stage screening roller; a secondary screening hole is formed in the wall of the secondary screening roller to form a material screening structure; a secondary spiral guide plate is arranged in the secondary screening roller and extends towards the next-stage screening device to form a structure for guiding the unscreened materials to the next-stage screening device; a secondary material receiving device is arranged below the secondary screening roller to receive materials screened out from the secondary screening device, and a feed opening is formed in the bottom of the secondary material receiving device;
the aperture of the secondary screening hole is larger than that of the primary screening hole, and the secondary spiral guide plate and the primary spiral guide plate form a smooth transition structure.
2. The spiral sizing screen apparatus according to claim 1, wherein: the primary screening roller forms a continuous feeding structure through a feeding pipe or a feeding belt or forms a continuous feeding structure for intermittent feeding through a hopper, and the position of the hopper is higher than that of the primary screening roller so as to form a structure that materials automatically enter the primary screening roller.
3. The spiral sizing screen apparatus according to claim 1, wherein: the screening drum of each screening device is in a cylindrical, regular triangular prism-shaped, regular square prism-shaped or regular multi-prism-shaped structure.
4. The spiral sizing screen apparatus according to claim 1, wherein: the primary spiral guide plate is perpendicular to the inner wall of the primary screening roller and is fixedly arranged; and the secondary spiral guide plate is perpendicular to the inner wall of the secondary screening roller and is fixedly arranged.
5. The spiral sizing screen apparatus according to claim 1, wherein: the screening holes of each screening roller are one, two or a plurality of combinations of circles, equilateral triangles, squares and regular polygons, the primary screening holes are uniformly distributed on the cylinder wall of the primary screening roller, and the secondary screening holes are uniformly distributed on the cylinder wall of the secondary screening roller.
6. The spiral sizing screen apparatus according to claim 1, wherein: the driving device is a motor and is connected with the central shaft of the primary screening roller through a gear or belt transmission mechanism.
7. The spiral sizing screen apparatus according to claim 1, wherein: the screening device comprises at least three stages, each stage of screening device has the same structure, the aperture of the screening hole of the next stage of screening device is larger than that of the screening hole of the previous stage of screening device, and the spiral guide plate of the next stage of screening device is in smooth connection transition with the spiral guide plate of the previous stage of screening device; and a second connecting device is arranged at the tail part of the second-stage screening device to be connected with the next-stage screening device.
8. The spiral sizing screen apparatus according to claim 1, wherein: the rotating speed of a screening roller of the screening device is 0.1r/min-100r/min and the screening roller rotates at a constant speed.
9. The spiral sizing screen apparatus according to claim 1, wherein: the connecting device between two adjacent stages of screening devices realizes the connection and fixation of the two stages of screening devices by screwing a screw, quickly connecting a buckle or connecting a flange.
10. The spiral sizing screen apparatus according to claim 1, wherein: the screening roller, the spiral guide plate and each material receiving device of each stage of screening device are made of fluororubber, polytetrafluoroethylene or polyurethane materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922214288.3U CN211385709U (en) | 2019-12-11 | 2019-12-11 | Spiral grading screening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922214288.3U CN211385709U (en) | 2019-12-11 | 2019-12-11 | Spiral grading screening device |
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| Publication Number | Publication Date |
|---|---|
| CN211385709U true CN211385709U (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922214288.3U Active CN211385709U (en) | 2019-12-11 | 2019-12-11 | Spiral grading screening device |
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| CN (1) | CN211385709U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112642515A (en) * | 2020-11-05 | 2021-04-13 | 中国恩菲工程技术有限公司 | Polycrystalline silicon crushing, sorting and packaging system |
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2019
- 2019-12-11 CN CN201922214288.3U patent/CN211385709U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112642515A (en) * | 2020-11-05 | 2021-04-13 | 中国恩菲工程技术有限公司 | Polycrystalline silicon crushing, sorting and packaging system |
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