CN108371974A - Pollution-free breaking polycrystalline silicon screening system - Google Patents
Pollution-free breaking polycrystalline silicon screening system Download PDFInfo
- Publication number
- CN108371974A CN108371974A CN201810213684.1A CN201810213684A CN108371974A CN 108371974 A CN108371974 A CN 108371974A CN 201810213684 A CN201810213684 A CN 201810213684A CN 108371974 A CN108371974 A CN 108371974A
- Authority
- CN
- China
- Prior art keywords
- crusher
- jaw
- pollution
- polycrystalline silicon
- sieve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012216 screening Methods 0.000 title claims abstract description 48
- 229910021420 polycrystalline silicon Inorganic materials 0.000 title claims abstract description 43
- 229920005591 polysilicon Polymers 0.000 claims abstract description 24
- 239000011148 porous material Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 15
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 7
- 238000010186 staining Methods 0.000 abstract description 2
- 239000000843 powder Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 239000002210 silicon-based material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C1/00—Crushing or disintegrating by reciprocating members
- B02C1/02—Jaw crushers or pulverisers
- B02C1/04—Jaw crushers or pulverisers with single-acting jaws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
- B02C2023/165—Screen denying egress of oversize material
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention discloses a kind of pollution-free breaking polycrystalline silicon screening system, including jaw crusher and the vibrations screening machine that communicates therewith;Jaw crusher includes the crusher head being connect with motor of crusher;Crusher head includes the quiet jaw being mutually twisted and dynamic jaw;Dynamic jaw is connect with motor of crusher, and with 20~23 ° of angle between quiet jaw;It is provided with vibrations screening machine below crusher head;It is from top to bottom disposed with several sieves in vibrations screening machine;Several sieve pores are provided on sieve;Screen-aperture is from top to bottom sequentially reduced, and sieve pore is in back taper;Vibrations screening machine inner wall, sieve and crusher head are made of the material for not generating contact staining with polysilicon;Motor of crusher and vibrations screening machine are connect with control system.The present apparatus can not only promote the broken screening efficiency of polysilicon, moreover it is possible to avoid polysilicon from being contaminated in broken screening process, ensure that the product quality of broken polysilicon.
Description
Technical field
The invention belongs to breaking polycrystalline silicon technical fields, and in particular to a kind of pollution-free breaking polycrystalline silicon screening system.
Background technology
Polysilicon (polycrystalline silicon) has grey metal gloss, under high temperature fused state, has larger
Chemical activity, can be with substantially any material effects.It is particularly important defect semiconductor material with semiconductor property,
Contemporary artificial intelligence, automatically control, information processing, the semiconductor devices such as opto-electronic conversion electronics and information infrastructure material, but it is micro-
The impurity of amount can largely effect on its electric conductivity.
And existing crushing system is to polysilicon when carrying out break process, general mostly is by manpower by ancillary equipment
Be crushed, crushing efficiency is low, and when ancillary equipment and polycrystalline silicon rod contact will produce abrasion pollution, due to polysilicon quality compared with
Crisp, easily broken after stress, broken polysilicon is not of uniform size, and for existing equipment in screening, screening efficiency is low.
Invention content
For above-mentioned deficiency in the prior art, the present invention provides a kind of pollution-free breaking polycrystalline silicon screening system, can have
Effect solves polysilicon and is easily contaminated in shattering process, the low problem of screening efficiency after being crushed.
In order to solve the above technical problems, the technical solution adopted by the present invention is:
There is provided a kind of pollution-free breaking polycrystalline silicon screening system, including jaw crusher and the vibrations screening that communicates therewith
Machine;Jaw crusher includes the crusher head being connect with motor of crusher;Crusher head includes the quiet jaw being mutually twisted and dynamic jaw;
Dynamic jaw is connect with motor of crusher, and with 20~23 ° of angle between quiet jaw;
It is provided with vibrations screening machine below crusher head;It is from top to bottom disposed with several sieves in vibrations screening machine;
Several sieve pores are provided on sieve;Screen-aperture is from top to bottom sequentially reduced, and sieve pore is in back taper;It shakes in screening machine
Wall, sieve and crusher head are made of the material for not generating contact staining with polysilicon;
Motor of crusher and vibrations screening machine are connect with control system.
Further, jaw thickness is moved between 20mm, with quiet jaw with 22.3 ° of angle.
Further, further include being connect with motor, and extend to the infeed conveyor above crusher head.
Further, crusher head is provided with the charging below infeed conveyor adjacent to the side of infeed conveyor
Slot.
Further, the deduster being connect with crusher head is provided on jaw crusher.
Further, deduster inner wall, vibrations screening machine inner wall, sieve and crusher head material are silicon nitride.
Further, control system is PLC control system or single-chip computer control system.
Beneficial effects of the present invention are:
1, by the angular compliance between quiet jaw and dynamic jaw, the crushing to polysilicon can be quickly and effectively realized, meanwhile,
The material of quiet jaw and dynamic jaw all has the performance for not polluting pSi powder, will not generate contact stain with polysilicon, avoid brokenly
Enter impurity during broken in pSi powder, influences its performance.
2, by the special setting of sieve pore, that is, it is avoided that broken polysilicon blocks sieve pore, and energy will be various sizes of
PSi powder screens respectively, greatly improves the broken screening efficiency of device.
3, the material of deduster inner wall, vibrations screening machine inner wall and sieve selects the material for not polluting pSi powder
Material reduces polysilicon contaminated possibility in shattering process, ensures the product of broken polysilicon to greatest extent
Energy.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present apparatus;
Fig. 2 is the structural schematic diagram of crusher;
Fig. 3 is the structural schematic diagram of sieve.
Wherein, 1, motor of crusher;2, quiet jaw;3, jaw is moved;4, sieve;5, sieve pore;6, infeed conveyor;7, feed well;
8, deduster;9, control system.
Specific implementation mode
The specific implementation mode of the present invention is described below, in order to facilitate understanding by those skilled in the art this hair
It is bright, it should be apparent that the present invention is not limited to the ranges of specific implementation mode, for those skilled in the art,
As long as various change is in the spirit and scope of the present invention that the attached claims limit and determine, these variations are aobvious and easy
See, all are using the innovation and creation of present inventive concept in the row of protection.
As shown in Figure 1, the pollution-free breaking polycrystalline silicon screening system, including jaw crusher and the vibrations that communicate therewith
Screening machine, wherein the model YC-1500 of screening machine is shaken in model PE600 × 900 of jaw crusher.
As depicted in figs. 1 and 2, which includes the crusher head being connect with motor of crusher 1, and broken electromechanics
Machine 1 is connect with control system 9, and preferably control system 9 is PLC control system;Wherein, crusher head includes the quiet jaw being mutually twisted
2 and dynamic jaw 3, and the dynamic jaw 3 is connect with motor of crusher 1, is moved under its drive.
It is mutually twisted as shown in Fig. 2, being respectively arranged on the occlusal surface of quiet jaw 2 and dynamic jaw 3, the groove of undulate, together
When, move 3 thickness of jaw has 22.3 ° of an angle for 20mm, with quiet jaw 2 between, and the material of quiet jaw 2 and dynamic jaw 3 all have it is not dirty
The performance of pSi powder is contaminated, preferably silicon nitride can be quickly and effectively by the angular compliance between quiet jaw 2 and dynamic jaw 3
Realize crushing to polysilicon, meanwhile, contact stain will not be generated with polysilicon, avoid in shattering process in pSi powder into
Enter impurity, influences its performance.
As shown in Figure 1, the vibrations screening machine communicated therewith is provided with below crusher head, it is broken through crusher head
PSi powder enters in vibrations screening machine, is carried out to broken various sizes of pSi powder by shaking screening machine
Screening is distinguished.
As shown in figure 3, be from top to bottom disposed with several sieves 4 in the inside of vibrations screening machine, and sieve 4 it is mutual it
Between have certain gap, several sieve pores 5 for being screened to broken polysilicon are provided on sieve 4.
As shown in figure 3, sieve pore 5 is in back taper, i.e. the pore size at 5 both ends of sieve pore differs, first adjacent to crusher
The aperture at end is less than the aperture of the other end, meanwhile, sieve pore 5 is from top to bottom sequentially reduced adjacent to the aperture of crusher head one end, is led to
Such setting is crossed, has not only been avoided that broken polysilicon blocks sieve pore 5, but also various sizes of pSi powder can be screened respectively
Out, the broken screening efficiency of device is greatly improved.
As shown in Figure 1, the present apparatus further includes being connect with motor, and extends to the infeed conveyor 6 above crusher head, use
Broken polycrystalline silicon material is needed in transporting, meanwhile, also it is provided with positioned at feeding adjacent to 6 side of infeed conveyor in crusher head
The feed well 7 of 6 lower section of conveyer belt, the polycrystalline silicon material conveyed via infeed conveyor 6 enter crusher head by feed well 7
It is crushed.
As shown in Fig. 2, the deduster 8 being connect with crusher head is provided on jaw crusher, it is broken for eliminating polysilicon
The dust generated during broken, avoids it from diffusing in air, harm is brought to staff.
In addition, pollution may be generated in entirely broken screening process to broken polysilicon to eliminate, in deduster 8
The material of wall, vibrations screening machine inner wall and sieve 4 selects the material for not polluting pSi powder, preferably silicon nitride, by
This, reduces polysilicon contaminated possibility in shattering process, ensures the product of broken polysilicon to greatest extent
Energy.
Specific implementation mode is described in detail, but should not be construed as the restriction to the protection domain of this patent.
In range described by claims, various modifications and deformation that those skilled in the art can make without creative work
Still belong to the protection domain of this patent.
Claims (7)
1. a kind of pollution-free breaking polycrystalline silicon screening system, which is characterized in that including jaw crusher and the shake communicated therewith
Dynamic screening machine;The jaw crusher includes the crusher head being connect with motor of crusher (1);The crusher head includes mutual
The quiet jaw (2) and dynamic jaw (3) of occlusion;The dynamic jaw (3) connect with motor of crusher (1), and between quiet jaw (2) have 20~
23 ° of angle;
It is provided with vibrations screening machine below the crusher head;If being from top to bottom disposed with dry screen in the vibrations screening machine
Net (4);It is provided with several sieve pores (5) on the sieve (4);Sieve pore (5) aperture is from top to bottom sequentially reduced, and sieve pore
(5) it is in back taper;The vibrations screening machine inner wall, sieve (4) and crusher head by not with polysilicon generate contact
The material of pollution is made;
The motor of crusher (1) and vibrations screening machine are connect with control system (9).
2. pollution-free breaking polycrystalline silicon screening system according to claim 1, which is characterized in that dynamic jaw (3) thickness
With 22.3 ° of angle between 20mm, with quiet jaw (2).
3. pollution-free breaking polycrystalline silicon screening system according to claim 1, which is characterized in that further include connecting with motor
It connects, and extends to the infeed conveyor above crusher head (6).
4. pollution-free breaking polycrystalline silicon screening system according to claim 3, which is characterized in that the crusher head is neighbouring
The side of infeed conveyor (6) is provided with the feed well (7) below infeed conveyor (6).
5. pollution-free breaking polycrystalline silicon screening system according to claim 1, which is characterized in that on the jaw crusher
It is provided with the deduster (8) being connect with crusher head.
6. pollution-free breaking polycrystalline silicon screening system according to claim 5, which is characterized in that in the deduster (8)
Wall, vibrations screening machine inner wall, sieve (4) and crusher head material are silicon nitride.
7. pollution-free breaking polycrystalline silicon screening system according to claim 1, which is characterized in that the control system (9)
For PLC control system or single-chip computer control system.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810213684.1A CN108371974A (en) | 2018-03-15 | 2018-03-15 | Pollution-free breaking polycrystalline silicon screening system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810213684.1A CN108371974A (en) | 2018-03-15 | 2018-03-15 | Pollution-free breaking polycrystalline silicon screening system |
Publications (1)
Publication Number | Publication Date |
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CN108371974A true CN108371974A (en) | 2018-08-07 |
Family
ID=63018809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201810213684.1A Pending CN108371974A (en) | 2018-03-15 | 2018-03-15 | Pollution-free breaking polycrystalline silicon screening system |
Country Status (1)
Country | Link |
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CN (1) | CN108371974A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112337548A (en) * | 2020-10-29 | 2021-02-09 | 谭林 | Industrial ore crushing screening installation |
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 |
CN115582185A (en) * | 2022-11-04 | 2023-01-10 | 烟台晨雨露设计装饰有限公司 | Sliding bearing for large crusher |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060070569A1 (en) * | 2004-10-04 | 2006-04-06 | Douglas Andrejewski | Roll crusher to produce high purity polycrystalline silicon chips |
US20070235574A1 (en) * | 2006-04-06 | 2007-10-11 | Wacker Chemie Ag | Method and Device For Comminuting and Sorting Polysilicon |
CN103204279A (en) * | 2013-04-02 | 2013-07-17 | 新特能源股份有限公司 | Polysilicon breaking and packaging line and polysilicon broken packaging method |
CN203556550U (en) * | 2013-09-06 | 2014-04-23 | 天津聚贤达科技有限公司 | Granular material grading-screening device |
CN204583662U (en) * | 2014-12-25 | 2015-08-26 | 国电兆晶光电科技江苏有限公司 | Wave the screening point of silicon material multilayer and change machine |
CN105292596A (en) * | 2014-06-16 | 2016-02-03 | 新特能源股份有限公司 | Polycrystalline silicon bagging metering control system |
CN106794992A (en) * | 2014-10-14 | 2017-05-31 | 株式会社德山 | Breaking polycrystalline silicon thing, the manufacture method of breaking polycrystalline silicon thing and polysilicon block breaker |
CN107413422A (en) * | 2017-05-11 | 2017-12-01 | 能诚集团有限公司 | A kind of synchronous jaw crusher of broken sieve |
CN107755247A (en) * | 2017-11-10 | 2018-03-06 | 苏州鸿博斯特超净科技股份有限公司 | Polysilicon shaking-sieving device |
CN208146063U (en) * | 2018-03-15 | 2018-11-27 | 四川禾牧机械制造有限公司 | Pollution-free breaking polycrystalline silicon screening system |
-
2018
- 2018-03-15 CN CN201810213684.1A patent/CN108371974A/en active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060070569A1 (en) * | 2004-10-04 | 2006-04-06 | Douglas Andrejewski | Roll crusher to produce high purity polycrystalline silicon chips |
US20070235574A1 (en) * | 2006-04-06 | 2007-10-11 | Wacker Chemie Ag | Method and Device For Comminuting and Sorting Polysilicon |
CN103204279A (en) * | 2013-04-02 | 2013-07-17 | 新特能源股份有限公司 | Polysilicon breaking and packaging line and polysilicon broken packaging method |
CN203556550U (en) * | 2013-09-06 | 2014-04-23 | 天津聚贤达科技有限公司 | Granular material grading-screening device |
CN105292596A (en) * | 2014-06-16 | 2016-02-03 | 新特能源股份有限公司 | Polycrystalline silicon bagging metering control system |
CN106794992A (en) * | 2014-10-14 | 2017-05-31 | 株式会社德山 | Breaking polycrystalline silicon thing, the manufacture method of breaking polycrystalline silicon thing and polysilicon block breaker |
CN204583662U (en) * | 2014-12-25 | 2015-08-26 | 国电兆晶光电科技江苏有限公司 | Wave the screening point of silicon material multilayer and change machine |
CN107413422A (en) * | 2017-05-11 | 2017-12-01 | 能诚集团有限公司 | A kind of synchronous jaw crusher of broken sieve |
CN107755247A (en) * | 2017-11-10 | 2018-03-06 | 苏州鸿博斯特超净科技股份有限公司 | Polysilicon shaking-sieving device |
CN208146063U (en) * | 2018-03-15 | 2018-11-27 | 四川禾牧机械制造有限公司 | Pollution-free breaking polycrystalline silicon screening system |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112337548A (en) * | 2020-10-29 | 2021-02-09 | 谭林 | Industrial ore crushing screening installation |
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 |
CN115582185A (en) * | 2022-11-04 | 2023-01-10 | 烟台晨雨露设计装饰有限公司 | Sliding bearing for large crusher |
CN115582185B (en) * | 2022-11-04 | 2023-09-08 | 山东福马轴承有限公司 | Sliding bearing for large crusher |
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