CN109094861A - A kind of packing method of chunk polysilicon - Google Patents
A kind of packing method of chunk polysilicon Download PDFInfo
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- CN109094861A CN109094861A CN201710474790.0A CN201710474790A CN109094861A CN 109094861 A CN109094861 A CN 109094861A CN 201710474790 A CN201710474790 A CN 201710474790A CN 109094861 A CN109094861 A CN 109094861A
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- China
- Prior art keywords
- packaging bag
- packing method
- polysilicon
- independent
- bag
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B51/22—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
- B65B51/225—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding by ultrasonic welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B2220/00—Specific aspects of the packaging operation
- B65B2220/16—Packaging contents into primary and secondary packaging
- B65B2220/20—Packaging contents into primary and secondary packaging the primary packaging being bags, the secondary packaging being further bags, the primary bags being either finished or formed concurrently with the secondary bags
Abstract
The present invention provides a kind of packing method of chunk polysilicon comprising following steps: the polysilicon block that weighing finishes is introduced into the first packaging bag；Remove the air in the first packaging bag；Processing is sealed to the first packaging bag；The first packaging bag that sealing finishes is introduced into the second packaging bag；Inert gas is filled with into the gap between the first packaging bag and the second packaging bag；Processing is sealed to the second packaging bag, to form independent packaging bag.Will not only polysilicon be made to be contaminated during transportation using the packaged polysilicon of packing method of the present invention, but also will not phase mutual friction generation pSi powder.
Description
Technical field
The present invention relates to technical field of polysilicon production, and in particular to a kind of packing method of chunk polysilicon.
Background technique
The production technology of polysilicon (polycrystalline silicon) is generally, and utilizes generation by Siemens process
Alkyl halide (such as trichlorosilane) is deposited into silicon rod, and then silicon rod is ground into the more of minimum pollution by way of hand breaking
Crystal silicon block.Polysilicon block with minimum pollution is the ideal material of semiconductor and solar energy, is transported by polysilicon block
The defeated probability that should ensure that polysilicon block is contaminated before into client's hand is minimum.
Polysilicon block is the massive material with the non-free flowing of sharp edges, needs to guarantee that its packaging bag is being packed
And will not be damaged in process of container transportation, or only puncture first layer packaging bag (i.e. internal layer packaging bag) in the worst case,
And overpack bag (i.e. outer packaging bag) is intact, to guarantee that the polysilicon block of minimum pollution will not be in transport to client's hand
In process in pollution level increase.Therefore the packing method of polysilicon block just determines polysilicon block during transportation
The size for the probability being contaminated.
At present, it is common to use packaging bag be thickness 0.25mm the high-purity PE polybag of bilayer, wherein first layer polybag
Size be 580*300mm, the size of second layer polybag is 590*355mm.Specific packing method is, first by polysilicon block
Body is introduced into first layer polybag, and first layer polybag is introduced into second again after carrying out heat seal to first layer polybag
In layer polybag, heat seal finally is carried out to second layer polybag；Or polysilicon block is being introduced into first layer plastics
Bag before just first layer polybag has been inserted into second layer polybag, then to first layer and second layer polybag successively into
Row sealing.
Packaged chunk polysilicon will receive vibration in transport and storage process, jolt, when the polycrystalline of clear-cut margin
For silicon bulk when orientation is bad in packaging bag, polysilicon block can isolate packaging bag, Huo Zheduo relative to the mobile of packaging bag
Pressure of the crystal silicon block in packaging bag can penetrate packaging bag, so that polysilicon block be made to expose from packaging bag.From packaging bag
The polysilicon block cognition of middle exposing is directly polluted by adjacent material, and the environment that the block inside packaging bag also suffers from inflow is empty
Gas pollution.
In addition, the chunk polysilicon phase mutual friction always during transportation in packaging bag, and generate unnecessary fine
Object (i.e. pSi powder), and downstream client also needs to screen out the fine content in chunk polysilicon before further, processing.
Therefore, it is whether polluted caused by polysilicon during transportation, still during transportation because of polysilicon phase
Mutual friction and the pSi powder generated, can all bring unnecessary trouble to downstream client.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of bulk for the drawbacks described above in the presence of the prior art
The packing method of polysilicon will not both be such that polysilicon is contaminated during transportation using the packaged polysilicon of this method,
It again will not phase mutual friction generation pSi powder.
Solving technical solution used by present invention problem is:
The present invention provides a kind of packing method of chunk polysilicon comprising following steps:
The polysilicon block that weighing finishes is introduced into the first packaging bag；
Remove the air in the first packaging bag；
Processing is sealed to the first packaging bag；
The first packaging bag that sealing finishes is introduced into the second packaging bag；
Inert gas is filled with into the gap between the first packaging bag and the second packaging bag；
Processing is sealed to the second packaging bag, to form independent packaging bag.
Optionally, first packaging bag and the second packaging bag are all made of high-purity polyethylene plastic bag.
Optionally, vacuumize process is carried out to the air in the first packaging bag using vacuum suction apparatus, thus removal the
Air in one packaging bag.
Optionally, processing is sealed to the first packaging bag and the second packaging bag using heat seal device.
Optionally, the inert gas is high pure nitrogen.
Optionally, the linear dimension range of the polysilicon block is 5-150mm；The weight of each independent packaging bag is
10Kg±5g。
Optionally, the total volume of the first packaging bag after sealing and the polysilicon block that is introduced in the first packaging bag is total
The ratio range of volume is 1.1-1.3；The totality of the total volume of the second packaging bag after sealing and the first packaging bag after sealing
Long-pending ratio range is 2.0-2.3.
Optionally, the packing method further includes following steps: each independent packaging bag is put into corrugated case.
It is optionally, described that each independent packaging bag is put into the step in corrugated case specifically:
Several corrugated paper plates are put into corrugated case to form honeycomb compartment；
An independent packaging bag is put into each of being separated out in small.
Further, further include following steps:
After piling one layer of packaging bag in corrugated case, corrugation partition is placed in this layer of packaging bag；
Several corrugated paper plates are placed on the corrugation partition to form honeycomb compartment；
It is put into an independent packaging bag each of being separated out in small, to be packed into two layers of packaging in corrugated case
Bag.
The utility model has the advantages that
After the packing method of chunk polysilicon of the present invention eliminates the air in the first packaging bag, so that the first packaging
Biggish relative movement will not occur between chunk polysilicon in bag, both reduced polysilicon block and pierced through the first packaging bag
Probability, and fine content will not be generated because being mutually shifted between polysilicon block；It is filled between the second packaging bag and the first packaging bag
After entering inert gas, even if polysilicon block has punctured the first packaging bag, what is directly contacted is also inert gas, therefore
Polysilicon will not be made by air pollution, moreover it is possible to make the independent packaging bag to be formed in air bag state, to external mechanical punching
Hitting can play a buffer role in.
Detailed description of the invention
Fig. 1 is the flow chart of the packing method of chunk polysilicon provided in an embodiment of the present invention.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawings and examples to this
Invention is described in further detail.
It is more during pack since interior outer bag assembles completion in advance in existing polysilicon block packaging process
Crystal silicon block easily falls the pollution that polysilicon is caused in the interlayer of interior outer bag；Packaged polysilicon is being transported and is being stored in a warehouse
It will receive vibration in the process, jolt, when orientation is bad in packaging bag for the polysilicon block of clear-cut margin, polysilicon block
The mobile pressure that can cut open packaging bag or polysilicon block in packaging bag relative to packaging bag can penetrate packaging bag, from
The polysilicon block cognition exposed in packaging bag is directly polluted by adjacent material, and the block inside packaging bag also suffers from inflow
Environmental air pollution.
To solve the above-mentioned problems, the present invention provides a kind of packing method of novel chunk polysilicon, mainly for need
Transport for long-distance the enterprise of packaged chunk polysilicon, and reduce polysilicon block in transportational process be contaminated it is general
Rate.Its packaging process is not only suitable for full automatic mechanical packaging, is also applied for manual operation.It specially uses the first packaging bag
After vacuumizing and sealing, then the first packaging bag is introduced into the second packaging bag, and between the first packaging bag and the second packaging bag
It is filled with the packing method of high pure nitrogen, to greatly reduce the probability that polysilicon block is contaminated during transportation.Under
Face is described in detail by specific embodiment.
As shown in Figure 1, the embodiment of the present invention provides a kind of packing method of chunk polysilicon comprising following steps
S101-S106。
S101. the polysilicon block that weighing finishes is introduced into the first packaging bag.
S102. the air in the first packaging bag is removed.
Wherein, vacuum suction apparatus can be used, vacuumize process is carried out to the air in the first packaging bag, thus removal the
Air in one packaging bag.It is of course also possible to use the mode of manual squeezing, using fixture or percussion mechanism, using vacuum chamber
Deng the air in the first packaging bag of removal.
In the present embodiment, to directly vacuumize process is carried out with the first packaging bag of polysilicon contact of blocks, so that first
The irregular polysilicon block accommodated in packaging bag is closely combined together under the action of outer boundary's atmospheric pressure, sharp in this way
Biggish relative movement would not occur between polysilicon block and the first packaging bag, so that reducing polysilicon block pierces through the
The probability of one packaging bag.
S103. processing is sealed to the first packaging bag.
Wherein, heat seal device can be used, processing is sealed to the first packaging bag.Supersonic thermal setting specifically can be used
Sealing device.
More preferably, the total volume of the first packaging bag after vacuumizing and seal and the polysilicon being introduced in the first packaging bag
The ratio range of the total volume of block is 1.1-1.3.
S104. the first packaging bag that sealing finishes is introduced into the second packaging bag.
S105. inert gas is filled with into the gap between the first packaging bag and the second packaging bag.
Wherein, the method for being filled with inert gas can use existing sealing gas flush packaging method.
In the present invention, the inert gas refers to chemically inert gas, specially at normal temperature chemically
The inactive gas of matter, such as nitrogen are not to refer exclusively to the rare gas such as He-Ne argon krypton xenon radon.
In the present embodiment, chunk polysilicon will be equipped with and vacuumize and seal the second packet of the first packaging bag loading finished
After in pack, it is filled with high pure nitrogen between the first packaging bag and the second packaging bag, even when the polycrystalline in the first packaging bag
Silicon bulk has punctured the first packaging bag, and what the polysilicon block exposed from the first packaging bag directly contacted is also high pure nitrogen,
So that polysilicon not will receive air pollution.
S106. processing is sealed to the second packaging bag, to form independent packaging bag.The independent packaging bag because
It is in air bag state filled with inert gas between first packaging bag and the second packaging bag, external mechanical shock can be played slow
Punching effect.
Wherein, heat seal device can be used, processing is sealed to the second packaging bag.Supersonic thermal setting specifically can be used
Sealing device.
More preferably, the ratio model of the total volume of the second packaging bag after sealing and the total volume of the first packaging bag after sealing
It encloses for 2.0-2.3.
In the present embodiment, first packaging bag and the second packaging bag are all made of high-purity polyethylene (polyethylene, letter
Claim PE) polybag, high-purity PE polybag have the advantages that antistatic, thicken puncture-resistant, anti-puncture intensity be 6.685N, metal
Impurity content is 150.6ppbw, with a thickness of 25.
Moreover, the linear dimension range of the polysilicon block is 5-150mm；It is independent through each of abovementioned steps formation
The weight of packaging bag is 10Kg ± 5g.Environment temperature in packaging process is preferably 18-25 DEG C；Relative air humidity is preferably
30-70%.Packaging process should carry out under the clean environment for crossing air filtering.
In addition, the packing method further includes following steps S107 and S108.
S107. each independent packaging bag is put into corrugated case.
S108. joint sealing.
Wherein, step S107 may include following steps S107A-S107B.
S107A. several corrugated paper plates are put into corrugated case to form honeycomb compartment.Such as formed 3 × 5 every
Between.
S107B. an independent packaging bag is put into each of being separated out in small.In this step, it need to make each independent
Packaging bag is combined closely with surrounding corrugated paper wall, to prevent packaging bag in the small interior play being separated out.
Further, the S107 may also include the steps of S107C-S107E.
S107C. after piling one layer of packaging bag in corrugated case, corrugation partition is placed in this layer of packaging bag.
S107D. several corrugated paper plates are placed on the corrugation partition to form honeycomb compartment.Such as form 3
× 5 compartments.
S107E. an independent packaging bag is put into each of being separated out in small, to pile one layer of packaging bag again, from
And two layers of packaging bag is packed into corrugated case.In this step, also need to make each independent packaging bag with surrounding watt
Stupefied paper wall is combined closely.
In conclusion the advantage after the packing method use of chunk polysilicon described in the present embodiment is:
1) the first packaging bag is after taking out certain vacuum, the bulk by the effect of external pressure, in the first packaging bag
It is mutually closely combined between polysilicon, fine content will not be generated because being mutually shifted between polysilicon block.
2) the first packaging bag will not occur larger after taking out certain vacuum between the chunk polysilicon in the first packaging bag
Relative movement, therefore the case where sharp polysilicon scratches packaging bag, can be reduced, so that reducing polysilicon block pierces through the
The probability of one packaging bag.
3) high pure nitrogen is filled between the second packaging bag and the first packaging bag, it is ensured that sharp in the worst case
It is high pure nitrogen that polysilicon block, which has punctured directly contact after the first packaging bag, is contaminated in air without exposure.
4) the corrugated paper wall of the independent package bag and packing case that are formed is combined closely, and independent packaging bag is in inflatable balloon-like
State can play a buffer role in external mechanical shock.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, essence of the invention is not being departed from
In the case where mind and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a kind of packing method of chunk polysilicon, which comprises the steps of:
The polysilicon block that weighing finishes is introduced into the first packaging bag；
Remove the air in the first packaging bag；
Processing is sealed to the first packaging bag；
The first packaging bag that sealing finishes is introduced into the second packaging bag；
Inert gas is filled with into the gap between the first packaging bag and the second packaging bag；
Processing is sealed to the second packaging bag, to form independent packaging bag.
2. packing method according to claim 1, which is characterized in that first packaging bag and the second packaging bag are all made of
High-purity polyethylene plastic bag.
3. packing method according to claim 1, which is characterized in that using vacuum suction apparatus in the first packaging bag
Air carries out vacuumize process, thus the air in the first packaging bag of removal.
4. packing method according to claim 1, which is characterized in that using heat seal device to the first packaging bag and the
Two packaging bags are sealed processing.
5. packing method according to claim 1, which is characterized in that the inert gas is high pure nitrogen.
6. packing method according to any one of claims 1-5, which is characterized in that the linear ruler of the polysilicon block
Very little range is 5-150mm；The weight of each independent packaging bag is 10Kg ± 5g.
7. packing method according to any one of claims 1-5, which is characterized in that the first packaging bag after sealing it is total
The ratio range of volume and the total volume for the polysilicon block being introduced in the first packaging bag is 1.1-1.3；Second after sealing
The ratio range of the total volume of packaging bag and the total volume of the first packaging bag after sealing is 2.0-2.3.
8. packing method according to any one of claims 1-5, which is characterized in that the packing method further includes as follows
Step: each independent packaging bag is put into corrugated case.
9. packing method according to claim 8, which is characterized in that described that each independent packaging bag is put into corrugated paper
Step in case specifically:
Several corrugated paper plates are put into corrugated case to form honeycomb compartment；
An independent packaging bag is put into each of being separated out in small.
10. packing method according to claim 9, which is characterized in that further include following steps:
After piling one layer of packaging bag in corrugated case, corrugation partition is placed in this layer of packaging bag；
Several corrugated paper plates are placed on the corrugation partition to form honeycomb compartment；
It is put into an independent packaging bag each of being separated out in small, to be packed into two layers of packaging bag in corrugated case.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710474790.0A CN109094861A (en) | 2017-06-21 | 2017-06-21 | A kind of packing method of chunk polysilicon |
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Cited By (5)
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| CN109533451A (en) * | 2019-01-10 | 2019-03-29 | Oppo（重庆）智能科技有限公司 | Storage method |
| CN113173285A (en) * | 2021-05-24 | 2021-07-27 | 上海超硅半导体有限公司 | Packaging method of silicon wafer |
| CN113401412A (en) * | 2020-03-17 | 2021-09-17 | 新特能源股份有限公司 | Packaging system and packaging method of polycrystalline silicon |
| CN115535346A (en) * | 2022-12-01 | 2022-12-30 | 江苏鑫华半导体科技股份有限公司 | Packaging method of polycrystalline silicon block |
| CN115610727A (en) * | 2022-11-10 | 2023-01-17 | 内蒙古大全新能源有限公司 | Packaging method for irregular polycrystalline silicon lump material |
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