CN216539472U - Multi-stage screening device for refining white corundum - Google Patents

Abstract

The utility model belongs to the field of white corundum production and application equipment, and particularly relates to a multi-stage screening device for refining white corundum, which comprises a support frame, wherein the upper end of the support frame is provided with a screening device, the screening device comprises a sealing cover, a screening cylinder in a hollow cylindrical design and a discharge bin in a conical design which are sequentially arranged from top to bottom, a sleeve is arranged on the outer surface of a rotating shaft below the sealing cover, a plurality of stirring plates are uniformly arranged on the periphery of the sleeve, a primary screening plate, a secondary screening plate and a tertiary screening plate are sequentially arranged in the screening cylinder from top to bottom, and the lower ends of the primary screening plate and the secondary screening plate are respectively provided with a hollow conical-designed flow-down plate. The material screening device is reasonable in design, simple in structure and convenient to process, can screen materials of different specifications, improves the practicability of equipment, prevents materials from being accumulated, improves the material screening process, saves time and cost, and meets the use requirements of people.

Description

Multi-stage screening device for refining white corundum

Technical Field

The utility model belongs to the field of white corundum production and application equipment, and particularly relates to a multistage screening device for refining white corundum.

Background

The white corundum is one kind of artificial abrasive, has alumina content over 99%, contains small amount of ferric oxide, silicon oxide and other components, and is white. The product granularity is produced according to international standard and national standard, and can be processed according to the granularity required by users. The general particle size numbers are F4-F220, and the chemical compositions of the particles are different according to the particle size. The outstanding characteristics are that the crystal size is small and the impact resistance is high, if the crystal is processed and crushed by an autogenous mill, the particles are mostly spherical particles, the surface is dry and clean, and the bonding of a bonding agent is easy. The white corundum is made up by using industrial alumina powder as raw material, smelting at high temp. of above 2000 deg.C in electric arc and cooling, and is made up through the processes of pulverizing, shaping, magnetic separation to remove iron, screening to obtain several granularities, its hardness is slightly higher than that of brown corundum, its texture is compact, hardness is high, purity is high, self-sharpening property is good, grinding capacity is strong, heating quantity is small, efficiency is high, it is acid-base corrosion resistant, and its high-temp. resistance and thermal stability are good, so that it can be used for making ceramic and resin consolidation grinding tool, grinding, polishing, sand blasting and precision casting, etc.

At present, in the working process of preparing white corundum into granules, the white corundum products need to be refined, crushed and screened for many times to obtain finished products, so that the production requirements of plants are met; however, in the prior art, when white corundum is crushed and screened, the white corundum product is primarily crushed and screened firstly, secondary crushing and refining are carried out on the white corundum which does not reach the standard after primary screening, and then secondary screening is carried out, and in the process: most of screening plant that white alundum refines production and uses is not good enough in functionality, can only realize screening the material of same specification, if will reach different screening mesh, need set up the device of a plurality of different screening specifications, and just can obtain the white alundum finished product that satisfies service conditions after screening many times, the practicality is not high, and simultaneously, current screening plant produces easily at the unloading in-process and piles up and influence unloading screening process, has consumed the plenty of time, the user demand that satisfies people that can not be better.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problems, the utility model provides the multi-stage screening device for refining the white corundum, which has the advantages of reasonable design, simple structure and convenient processing, can realize screening of materials with different specifications, greatly improves the practicability of equipment, promotes the screening process of the materials, effectively prevents the materials from being accumulated, saves the time cost and meets the use requirements of people.

In order to achieve the purpose, the utility model adopts the technical scheme that the multi-stage screening device for refining the white corundum comprises a support frame, the upper end of the support frame is provided with a screening device, the screening device comprises a sealing cover, a screening cylinder in a hollow cylindrical design and a discharge bin in a conical design, the sealing cover is sequentially arranged from top to bottom, a rotating shaft is arranged at the geometric center of the upper end of the sealing cover and penetrates through the sealing cover, a sleeve is arranged on the outer surface of the rotating shaft below the sealing cover, a plurality of poking plates are uniformly arranged on the periphery of the sleeve, a first-stage screening plate, a second-stage screening plate and a third-stage screening plate are sequentially arranged in the screening cylinder from top to bottom, the first-stage screening plate is horizontally arranged in the screening cylinder and is flush with the lower end faces of the poking plates, the second-stage screening plate and the third-stage screening plate are obliquely arranged in the screening cylinder and are arranged in a splayed shape, the lower extreme of one-level sieve and the lower extreme of second grade sieve still all be provided with the board that fascinates that is the design of cavity toper.

Preferably, one side of the upper end of the sealing cover is further provided with a feeding bin, the periphery of the feeding bin is further symmetrically provided with two material guide pipes, a brush head is arranged on one side of a poking plate close to the inner wall of the separating screen cylinder, two sides of the periphery of the separating screen cylinder are provided with oscillators respectively and are connected with one ends of the second-stage screen plate and the third-stage screen plate respectively, and the outer surface of the separating screen cylinder is further symmetrically provided with two material distributing ports respectively and is connected with the other ends of the second-stage screen plate and the third-stage screen plate.

Preferably, a plurality of damping mechanisms arranged in an annular array are further arranged between the supporting frame and the screening device, each damping mechanism comprises a placement block and a damping spring, and the damping springs are sleeved on the periphery of the placement block.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. according to the multi-stage screening device for refining the white corundum, the arranged first-stage screening plate, second-stage screening plate and third-stage screening plate are matched with each other, so that the screening requirement among multi-stage material specifications can be effectively met, different white corundum materials can be obtained, secondary crushing or other operations are carried out under the control of external device parts, the integration among a plurality of screening mechanisms is realized, and the finished product standard of the white corundum production is achieved; through the arranged rotating shaft, the sleeve and the shifting plate, on one hand, the shifting plate is driven by the rotating shaft to rotate, so that the spreading of the white corundum material can be completed, the falling process of the white corundum material can be promoted, on the other hand, the white corundum material can be effectively prevented from being blocked or stacked in the blanking process, and the smooth development of screening work is ensured; through the arranged pouring plate, the moving range of the material in the falling process can be effectively limited, the condition that the material is attached to the inner wall of the screening drum is reduced as much as possible, and the resource waste is avoided; this device reasonable in design, simple structure, processing convenience just can realize screening, the practicality that has improved the plant equipment greatly the material of different specifications, promoted the screening process of material and effectively prevented that the material from taking place to pile up and practiced thrift the time cost, satisfy people's user demand.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

FIG. 1 is a schematic structural view of a multi-stage screening device for refining white corundum;

FIG. 2 is a schematic view of the internal structure of a multi-stage screening device for refining white corundum;

FIG. 3 is a front view of the internal structure of a multi-stage screening device for refining white corundum;

in the above figures, 1, a support frame; 2. sealing the cover; 3. a screening cylinder; 31. a material distributing port; 4. a discharging bin; 5. a rotating shaft; 6. a sleeve; 7. a kick-out plate; 71. a brush head; 8. a first-stage sieve plate; 9. a second-stage sieve plate; 10. a third-stage sieve plate; 11. a flow inclining plate; 12. a feeding bin; 121. a material guide pipe; 13. an oscillator; 14. a mounting block; 15. a shock absorbing spring.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

In the embodiment, as shown in fig. 1, fig. 2 and fig. 3, a multi-stage screening device for refining white corundum comprises a support frame 1, wherein a screening device is arranged at the upper end of the support frame 1 and is used for screening white corundum materials, so that the white corundum materials meeting the standard can be conveniently and rapidly led out, and convenience is brought to subsequent processes of packaging, packaging and the like; in order to improve the reasonability of the design of the device, the screening device comprises a sealing cover 2, a screening cylinder 3 in a hollow cylindrical design and a discharge bin 4 in a conical design which are sequentially arranged from top to bottom, wherein the sealing cover 2 is used for realizing the sealing treatment of the screening cylinder 3 and avoiding the splashing of the white corundum material in the screening process; in order to effectively prevent white corundum materials from being blocked and accumulated in the blanking process, a rotating shaft 5 is arranged at the geometric center of the upper end of a sealing cover 2 and penetrates through the sealing cover 2, a sleeve 6 is arranged on the outer surface of the rotating shaft 5 below the sealing cover 2, the sleeve 6 is fixedly connected to the rotating shaft 5, when the rotating shaft 5 bears external power to rotate, the sleeve 6 can be effectively driven to rotate, and further the subsequent smooth operation of spreading the materials is ensured, a plurality of shifting plates 7 are uniformly arranged on the periphery of the sleeve 6, the materials led into a screening drum 3 are dispersed, and the influence on the screening process caused by accumulation is effectively prevented; in order to promote the practicality of dividing the sieve device, accomplish the multistage screening of dialogue corundum material, divide in 3 sieve tube top-down set gradually one-level sieve 8, second grade sieve 9 and tertiary sieve 10, 8 level settings of one-level sieve flush mutually in dividing sieve tube 3 and with the lower terminal surface of switch-plate 7, second grade sieve 9 and tertiary sieve 10 all incline to set up in dividing sieve tube 3 and both are eight characters type and arrange, need further explication be: the first-stage sieve plate 8, the second-stage sieve plate 9 and the third-stage sieve plate 10 are sequentially arranged in the separating screen drum 3 from top to bottom, and the screening effect of the first-stage sieve plate 8, the second-stage sieve plate 9 and the third-stage sieve plate 10 on materials is sequentially increased, namely the first-stage sieve plate 8 can screen out the materials with the largest specification, and the third-stage sieve plate 10 is used for screening out the materials with smaller specifications, so that the materials falling through the third-stage sieve plate 10 are white corundum finished products, the specification and the size of the white corundum finished products meet the standard of finished products, and the white corundum finished products are led out to the outside through the discharging bin 4 to complete subsequent subpackaging, bag sealing and delivery; in order to further limit the falling direction of the materials, the lower ends of the first-stage sieve plate 8 and the second-stage sieve plate 9 are provided with hollow conical-designed pouring plates 11, so that the moving range of the materials in the falling process can be effectively limited, the condition that the materials are attached to the inner wall of the separating screen cylinder 3 is reduced as much as possible, and the waste of resources is avoided; in the process: through the arrangement of the first-stage sieve plate 8, the second-stage sieve plate 9 and the third-stage sieve plate 10, all the parts are matched with one another, so that the screening requirement among multi-stage material specifications can be effectively met, different white corundum materials can be obtained, secondary crushing or other operations are carried out under the control of external device parts, and integration among a plurality of screening mechanisms is realized, so that the finished product standard of white corundum production is achieved; through the arranged rotating shaft 5, the sleeve 6 and the shifting plate 7, on one hand, the shifting plate 7 is driven by the rotating shaft 5 to rotate, so that the spreading of the white corundum material can be completed to improve the falling process of the white corundum material, on the other hand, the white corundum material can be effectively prevented from being blocked or stacked in the blanking process, and the smooth development of screening work is ensured; through the arrangement of the inclined flow plate 11, the moving range of the materials in the falling process can be effectively limited, the situations that the materials are attached to the inner wall of the screening drum 3 and the like are reduced as much as possible, and the waste of resources is avoided; this device reasonable in design, simple structure, processing convenience just can realize screening, the practicality that has improved the plant equipment greatly the material of different specifications, promoted the screening process of material and effectively prevented that the material from taking place to pile up and practiced thrift the time cost, satisfy people's user demand.

In order to enable white corundum materials to smoothly fall into the device, a feeding bin 12 is further arranged on one side of the upper end of the sealing cover 2, two material guide pipes 121 are symmetrically arranged on the periphery of the feeding bin 12 and are communicated with an external smashing device, so that the materials are conveniently guided in, a reliable foundation is provided for subsequent sieving work of the materials, and in order to improve the neatness of the device, a brush head 71 is arranged on one side of the material stirring plate 7 close to the inner wall of the sub-sieve cylinder 3, so that the brush head 71 moves along with the rotation of the material stirring plate 7, the inner wall of the sub-sieve cylinder 3 is effectively cleaned, and the waste of the materials is avoided; divide 3 periphery both sides of a sieve section of thick bamboo 3 all to be provided with oscillator 13 and be connected with the one end of second grade sieve 9 and tertiary sieve 10 respectively, divide still the symmetry on the surface of a sieve section of thick bamboo 3 to have seted up two and divide material mouthful 31 and be connected with the other end of second grade sieve 9 and tertiary sieve 10 respectively, and the concrete description is: the oscillator 13 is connected with the higher department of second grade sieve 9 and the tertiary sieve 10 that inclines, can make the material of being sieved out derive by dividing material mouth 31 on the one hand to carry out operation processing on next step, on the other hand can fully guarantee going on smoothly of screening work, satisfy people's user demand.

In order to carry out the shock attenuation buffering to the device in the use and handle, still be provided with a plurality of damper that are the annular array and arrange between support frame 1 and the branch sieve device, damper is including settling piece 14 and damping spring 15, damping spring 15 cover is established in the periphery of settling piece 14, settle piece 14 and facilitate for damping spring 15's installation, and limit its range of movement, promote this damper's result of use to a certain extent, and effectively accomplish and cushion produced vibration in the branch sieve device use, in order to reduce the possibility that the device takes place the damage, extension fixture's life, and the production cost is saved.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims (3)

1. A multi-stage screening device for refining white corundum comprises a supporting frame, a screening device is arranged at the upper end of the supporting frame, it is characterized in that the screening device comprises a sealing cover, a screening cylinder in a hollow cylindrical design and a discharge bin in a conical design which are sequentially arranged from top to bottom, a rotating shaft is arranged at the geometric center of the upper end of the sealing cover and penetrates through the sealing cover, a sleeve is arranged on the outer surface of the rotating shaft below the sealing cover, a plurality of kickoff plates are uniformly arranged on the periphery of the sleeve, a first-stage sieve plate, a second-stage sieve plate and a third-stage sieve plate are sequentially arranged in the sieve separating cylinder from top to bottom, the first-stage sieve plate is horizontally arranged in the sub-sieve cylinder and is flush with the lower end surface of the kick-out plate, the second-stage sieve plate and the third-stage sieve plate are obliquely arranged in the sub-sieve cylinder and are arranged in a splayed shape, the lower extreme of one-level sieve and the lower extreme of second grade sieve still all be provided with the board that fascinates that is the design of cavity toper.

2. The multi-stage screening device for refining white corundum according to claim 1, wherein a feeding bin is further arranged on one side of the upper end of the sealing cover, two material guide pipes are symmetrically arranged on the periphery of the feeding bin, a brush head is arranged on one side of the material stirring plate close to the inner wall of the screening cylinder, oscillators are arranged on two sides of the periphery of the screening cylinder and are respectively connected with one ends of the second-stage screening plate and the third-stage screening plate, and two material distributing openings are symmetrically formed in the outer surface of the screening cylinder and are respectively connected with the other ends of the second-stage screening plate and the third-stage screening plate.

3. The multi-stage screening device for refining white corundum according to claim 2, wherein a plurality of damping mechanisms arranged in an annular array are further arranged between the supporting frame and the screening device, each damping mechanism comprises a placement block and a damping spring, and the damping springs are sleeved on the periphery of the placement block.

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