CN105128167B - A kind of prilling process of the plastic granulating equipment of rotary collision - Google Patents
A kind of prilling process of the plastic granulating equipment of rotary collision Download PDFInfo
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- CN105128167B CN105128167B CN201510690203.2A CN201510690203A CN105128167B CN 105128167 B CN105128167 B CN 105128167B CN 201510690203 A CN201510690203 A CN 201510690203A CN 105128167 B CN105128167 B CN 105128167B
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Abstract
The invention discloses the prilling process of the plastic granulating equipment of a kind of rotary collision, belong to plastic granulating equipment technical field.The step of the present invention is: being mixed with the hot blast of powder in high-pressure blast charging line and enter ball and form system, powder is formed to soften in pipeline at ball and is collected as granule, granule gradually long greatly ball under the screw action of spiral pelletize bar；Ball after growing up enters spiral rolling balling-up system, the further molding of ball under spiral becomes the screw action of club；Ball after molding enters air cooling system, in cold wind rotating pipe, cooling wind it is blown into by cold wind input pipe, by ball hardening by cooling under the screw action of the air-cooled bar of spiral, enter finished product ball afterwards and discharge system, obtain the finished product ball of a diameter of 4～6mm.The present invention breaches the Traditional Thinking idea in prior art about extrusion granulating, thus substantially increases the production efficiency of plastic granulating, and energy consumption is low, and production technology is simple, stable production process.
Description
Present patent application is for Application No.: the divisional application of 2013107433930, the applying date of original application
For: 2013/12/27, invention and created name is: the plastic granulating equipment of a kind of rotary collision and prilling process thereof.
Technical field
The present invention relates to plastic granulating equipment technical field, more particularly, it relates to the plastic granulating of a kind of rotary collision
The prilling process of equipment.
Background technology
Plastics are made up of additives such as synthetic resin, filler, plasticizer, stabilizer, lubricant, colorants.Plastics add
All kinds of machineries of work occupy critical role in plastics processing industry, and conventional has: plasticator, injection machine, extruding machine, blowing
Machine, calender, rotational molding machine and foaming machine etc..
Extruding machine is the extrusion extrusion injecting molten plastic through solid shape under screw acting, under traction machine effect
Cut after water cooled sizing, be mainly used in a large amount of continuous productions of various same cross-sectional product it can also be used to modifying plastics pelletize.
The extruding machine of plastic granulating generally comprises: motor, reduction box, thrust bearing, cylinder and spiral extrusion molding bar, and spiral extrusion molding bar is pacified
Being contained in cylinder, spiral extrusion molding bar includes double thread or single thread structure.Spiral extrusion molding bar is actually an inclined-plane or tiltedly
Slope is wrapped on central core, its objective is to increase pressure to overcome bigger resistance.Three kinds of resistances are mainly had in extrusion process
Power needs to overcome: when adhesive force on barrel of the frictional force of barrel, melt, melt are pushed forward by solid particle inside it
Logistics resistance.There is following technical problem in extruding machine of the prior art: the abrasion of (1) spiral extrusion molding bar and cylinder inboard wall is non-
Chang Yanchong, uses and within about 1 year, then needs to change spiral extrusion molding bar and cylinder so that production cost increases；(2) plastic formula changes
Plastic granulating technique can be caused during change unstable；(3) discharge time when existing extruding machine is shut down is long, and reactive loss is big, squeezes
Molding machine extrusion die mounting or dismounting are time-consuming takes a lot of work；(4) granulation efficiency of existing extruding machine is slow, and production efficiency hardly results in the biggest proposing
High.
By patent retrieval, Chinese Patent Application No.: 201110139783.8, the applying date: 2011-5-27, innovation and creation
Entitled: a kind of nylon polymer spray-cooling granulating method and equipment thereof, this application case comprises the following steps: (1) is in reaction
In still under steam pressure effect, the nylon polymer melt in reactor is delivered to the pressure at spray tower top by utilidor
Shower nozzle, sprays from pressure nozzle and is separated into tiny droplet, the at high temperature flash distillation of the moisture in droplet, realizes rapidly dry
Dry；(2) opening the gas valve of spray tower, cooling gas enters and high temperature droplet is cooled down molding, becomes uniform nylon solid
Granule and in tower to lower sedimentation；(3) open the gas outlet of spray tower, open air-introduced machine, by the mixed gas in spray tower from
Gas outlet is drawn, and in maintenance spray tower, pressure is-100～20Pa；(4) the nylon solid particle bottom spray tower is fallen in collection,
Finished product it is packaged into after classification.This application case proposes Spray granulation method, but can only prepare the granule of 0.5～1.5mm, it is impossible to
The plastic granulating reaching 4～6mm uses requirement.
At present, not yet developing the plastic granulating technique that production efficiency is high in commercial production, this is also to compel in this area
Be essential a difficult problem to be solved.
Summary of the invention
1. invention to solve the technical problem that
It is an object of the invention to overcome the production efficiency of plastic granulating in prior art low, and production cost is high not
Foot, it is provided that the prilling process of the plastic granulating equipment of a kind of rotary collision, have employed technical scheme, it is possible to realize
Carry out plastic granulating efficiently, and can effectively reduce production cost.
2. technical scheme
For reaching above-mentioned purpose, the technical scheme that the present invention provides is:
The plastic granulating equipment of a kind of rotary collision of the present invention, forms system, spiral rolling balling-up system including ball
And air cooling system；Wherein: described ball forms system and includes that ball formation pipeline, spiral pelletize bar, the first auxiliary add
Thermal and Pressure gauge, described ball forms the entrance of pipeline and is connected with the end of high-pressure blast charging line, this spheroidal
Being provided with spiral pelletize bar in becoming pipeline, described spiral pelletize bar is the screw rod with helical blade, spiral pelletize bar
Helical blade periphery and ball are formed and are provided with a space between inner-walls of duct, and this space is used for carrying proal supplementary powder
Material, described ball forms pipeline outer wall and is provided with the first assisted heating device and Pressure gauge；
Described spiral rolling balling-up system include rolling balling pipeline, spiral become club, the second assisted heating device and
Pressure gauge, the end that the entrance of described rolling balling pipeline forms pipeline with ball is connected, peace in this rolling balling pipeline
Becoming club, described spiral to become club to be the screw rod with helical blade equipped with spiral, spiral becomes outside the helical blade of club
Week contacts with rolling balling inner-walls of duct, and described rolling balling pipeline outer wall is provided with the second assisted heating device and pressure
Table；
Described air cooling system includes the air-cooled bar of cold wind rotating pipe, spiral and cold wind input pipe, described cold wind
The entrance of rotating pipe is connected with the end of rolling balling pipeline, is provided with the air-cooled bar of spiral, institute in this cold wind rotating pipe
The air-cooled bar of spiral stated is the screw rod with helical blade, in the helical blade periphery of the air-cooled bar of spiral and cold wind rotating pipe
Wall contacts, and described cold wind rotating pipe outer wall is provided with cold wind input pipe, and described cold wind input pipe is connected with cool air hose
Connect, in cold wind rotating pipe, be blown into cooling wind by this cold wind input pipe；The end of described cold wind rotating pipe and finished product
Ball is discharged system and is connected.
Further, the entrance of described rolling balling pipeline and ball form the end of pipeline and pass through Flange joint,
The entrance of described cold wind rotating pipe and the end of rolling balling pipeline are also by Flange joint.
Further, the first described assisted heating device and the mode of heating of the second assisted heating device are that high frequency adds
Heat, electrical heating, steam heating or gas heating.
Further, the space distance between helical blade periphery and the ball formation inner-walls of duct of spiral pelletize bar is
5～20mm.
A kind of prilling process of the plastic granulating equipment of the rotary collision of the present invention, the plastic granulating equipment of this rotary collision
System, spiral rolling balling-up system and air cooling system is formed including ball；Wherein: described ball forms system and includes circle
Ball forms pipeline, spiral pelletize bar, the first assisted heating device and Pressure gauge, and described ball forms entrance and the high pressure of pipeline
The end of wind charging line is connected, and this ball is provided with spiral pelletize bar in forming pipeline, and described spiral pelletize bar is band
There are the screw rod of helical blade, the helical blade periphery of spiral pelletize bar and ball to be formed between inner-walls of duct and are provided with a space,
This space is used for carrying proal supplementary powder, and described ball forms pipeline outer wall and is provided with the first assisted heating device
And Pressure gauge；Described spiral rolling balling-up system include rolling balling pipeline, spiral become club, the second assisted heating device and
Pressure gauge, the end that the entrance of described rolling balling pipeline forms pipeline with ball is connected, peace in this rolling balling pipeline
Becoming club, described spiral to become club to be the screw rod with helical blade equipped with spiral, spiral becomes outside the helical blade of club
Week contacts with rolling balling inner-walls of duct, and described rolling balling pipeline outer wall is provided with the second assisted heating device and pressure
Table；Described air cooling system includes the air-cooled bar of cold wind rotating pipe, spiral and cold wind input pipe, described cold wind roll tube
The entrance in road is connected with the end of rolling balling pipeline, is provided with the air-cooled bar of spiral, described spiral shell in this cold wind rotating pipe
The cold bar of whirlwind is the screw rod with helical blade, and the helical blade periphery of the air-cooled bar of spiral connects with cold wind rotating pipe inwall
Touching, described cold wind rotating pipe outer wall is provided with cold wind input pipe, and described cold wind input pipe is connected with cool air hose, passes through
This cold wind input pipe is blown into cooling wind in cold wind rotating pipe；The end of described cold wind rotating pipe is discharged with finished product ball
System is connected；The prilling process of the plastic granulating equipment of this rotary collision concretely comprises the following steps:
The hot blast being mixed with powder in step one, high-pressure blast charging line enters ball formation system, and powder is in spheroidal
Become to soften in pipeline and be collected as granule, granule gradually long greatly ball under the screw action of spiral pelletize bar, formed at ball
During, the helical blade periphery of spiral pelletize bar and ball form the space between inner-walls of duct and are used for carrying proal
Supplement powder, grow up for ball, wherein: ball formed in pipeline hot blast by the first assisted heating device be heated to be 180～
260℃；
Ball after step 2, step one are grown up enters spiral rolling balling-up system, becomes the screw action of club at spiral
The lower further molding of ball, wherein: in rolling balling pipeline, hot blast is heated to be 100～160 DEG C by the second assisted heating device；
Ball after step 3, step 2 molding enters air cooling system, by cold wind input pipe to cold wind roll tube
It is blown into cooling wind in road, by ball hardening by cooling under the screw action of the air-cooled bar of spiral, enters finished product ball afterwards and discharge system
System, obtains the finished product ball of a diameter of 4～6mm.
Preferably, in step one, ball forms pipeline, hot blast is heated to be 210～230 by the first assisted heating device
℃。
Preferably, in step 2, in rolling balling pipeline, hot blast is heated to be 130～140 by the second assisted heating device
℃。
3. beneficial effect
Use the technical scheme that the present invention provides, compared with existing known technology, there is following remarkable result:
The present invention forms system, spiral rolling balling-up system and air cooling system by building ball, it is proposed that a kind of
Brand-new plastic granulating equipment, breaches the Traditional Thinking idea about extrusion granulating in prior art, thus substantially increases
The production efficiency of plastic granulating, and energy consumption is low.The prilling process of the plastic granulating equipment of a kind of rotary collision of the present invention, from circle
Ball formation system, to air cooling system, uses high-pressure blast as the power of conveying material, production technology in whole production process
Simply, stable production process, maintenance of equipment expense is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the plastic granulating equipment of a kind of rotary collision of the present invention.
Label declaration in schematic diagram:
41, ball forms pipeline；42, spiral pelletize bar；43, the first assisted heating device；51, rolling balling pipeline；52、
Spiral becomes club；53, the second assisted heating device；61, cold wind rotating pipe；62, the air-cooled bar of spiral；63, cold wind input pipe；
16, Pressure gauge.
Detailed description of the invention
For further appreciating that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
In conjunction with Fig. 1, the plastic granulating equipment of a kind of rotary collision of the present embodiment, ball form system, spiral rolling
Balling-up system and air cooling system composition.
The ball of the present embodiment forms system and includes that ball forms pipeline 41, spiral pelletize bar the 42, first auxiliary adds hot charging
Putting 43 and Pressure gauge 16, described ball forms the entrance of pipeline 41 and is connected with the end of high-pressure blast charging line, this ball
Being provided with spiral pelletize bar 42 in forming pipeline 41, described spiral pelletize bar 42 is the screw rod with helical blade, spiral
The helical blade periphery of pelletize bar 42 and ball are formed and are provided with a space between pipeline 41 inwall, and this space is transported forward for conveying
Dynamic supplementary powder, described ball forms pipeline 41 outer wall and is provided with the first assisted heating device 43 and Pressure gauge 16.This
It is 5～20mm equal that the helical blade periphery of bright middle spiral pelletize bar 42 and ball form the space distance between pipeline 41 inwall
Can, the present embodiment void distance is 7mm.Powder in the present embodiment mutually collides in ball forms pipeline 41, can gradually
Forming plastics ball, the powder being passed through in space uses as supplementary powder, for plastics ball during being threadingly advanced constantly
Grow up.
The spiral rolling balling-up system of the present embodiment includes that rolling balling pipeline 51, spiral become club the 52, second auxiliary to add
Thermal 53 and Pressure gauge 16, the entrance of described rolling balling pipeline 51 and ball form the end of pipeline 41 by flange phase
Connection, is provided with spiral and becomes club 52, described spiral to become club 52 for helical blade in this rolling balling pipeline 51
Screw rod, spiral becomes the helical blade periphery of club 52 to contact with rolling balling pipeline 51 inwall, described rolling balling pipe
Road 51 outer wall is provided with the second assisted heating device 53 and Pressure gauge 16.What deserves to be explained is, the first auxiliary in the present embodiment
The mode of heating of heater 43 and the second assisted heating device 53 be high-frequency heating, electrical heating, steam heating, gas heating or
Other mode of heating, all uses electric heater to heat in the present embodiment.
The air cooling system of the present embodiment includes the air-cooled bar of cold wind rotating pipe 61, spiral 62 and cold wind input pipe 63,
The entrance of described cold wind rotating pipe 61 is connected by flange with the end of rolling balling pipeline 51, this cold wind rotating pipe
Being provided with the air-cooled bar of spiral 62 in 61, the air-cooled bar of described spiral 62 is the screw rod with helical blade, the air-cooled bar of spiral 62
Helical blade periphery contact with cold wind rotating pipe 61 inwall, it is defeated that described cold wind rotating pipe 61 outer wall is provided with cold wind
Entering pipe 63, described cold wind input pipe 63 is connected with cool air hose, by this cold wind input pipe 63 in cold wind rotating pipe 61
It is blown into cooling wind；The end of described cold wind rotating pipe 61 is discharged system with finished product ball and is connected.
Using the plastic granulating equipment of a kind of rotary collision of the present embodiment, its prilling process concretely comprises the following steps:
The hot blast being mixed with powder in step one, high-pressure blast charging line enters ball formation system, and powder is in spheroidal
Softening in becoming pipeline 41 and be collected as granule, granule gradually grows greatly ball under the screw action of spiral pelletize bar 42, at ball
In forming process, the helical blade periphery of spiral pelletize bar 42 and ball formed space between pipeline 41 inwall for conveying to
The supplementary powder of front motion, grows up for ball, wherein: in ball forms pipeline 41, hot blast passes through the first assisted heating device 43
It is heated to be 180～260 DEG C；In the present embodiment, in ball forms pipeline 41, hot blast is heated to be by the first assisted heating device 43
220℃.What deserves to be explained is, the hot blast being mixed with powder in the high-pressure blast charging line in the present embodiment is entering ball formation
It it is rotary advanced movement before system.
Ball after step 2, step one are grown up enters spiral rolling balling-up system, becomes the spiral of club 52 to make at spiral
With the further molding of lower ball, wherein: in rolling balling pipeline 51 hot blast by the second assisted heating device 53 be heated to be 100～
160℃；In the present embodiment, in rolling balling pipeline 51, hot blast controls to be 135 DEG C by the second assisted heating device 53.Additionally, such as
Really in rolling balling pipeline 51, hot blast temperature, can be to rolling balling pipeline 51 by the way of cooling air cooling more than 160 DEG C
Cool down, be maintained between 100～160 DEG C with hot blast temperature in controlling rolling balling pipeline 51.
Ball after step 3, step 2 molding enters air cooling system, is rotated to cold wind by cold wind input pipe 63
It is blown into cooling wind in pipeline 61, by ball hardening by cooling under the screw action of the air-cooled bar of spiral 62, enters finished product ball afterwards
Discharge system, obtains the finished product ball of a diameter of 4～6mm.
Schematically being described the present invention and embodiment thereof above, this description does not has restricted, institute in accompanying drawing
Show is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if the common skill of this area
Art personnel enlightened by it, in the case of without departing from the invention objective, designs and this technical scheme without creative
Similar frame mode and embodiment, all should belong to protection scope of the present invention.
Claims (3)
1. the prilling process of the plastic granulating equipment of a rotary collision, it is characterised in that the plastic granulating of this rotary collision sets
Standby ball formation system, spiral rolling balling-up system and the air cooling system of including, described ball formation system includes ball
Forming pipeline (41), spiral pelletize bar (42), the first assisted heating device (43) and the first Pressure gauge, described ball forms pipe
The entrance in road (41) is connected with the end of high-pressure blast charging line, and this ball is provided with spiral pelletize bar in forming pipeline (41)
(42), described spiral pelletize bar (42) is the screw rod with helical blade, the helical blade periphery of spiral pelletize bar (42)
And ball is formed and is provided with a space between pipeline (41) inwall, and this space is used for carrying proal supplementary powder, described
Ball forms pipeline (41) outer wall and is provided with the first assisted heating device (43) and the first Pressure gauge；Described spiral rolling balling-up
System includes that rolling balling pipeline (51), spiral become club (52), the second assisted heating device (53) and the second Pressure gauge, described
Entrance and the ball of rolling balling pipeline (51) form the end of pipeline (41) and be connected, peace in this rolling balling pipeline (51)
Becoming club (52) equipped with spiral, described spiral becomes club (52) to be the screw rod with helical blade, and spiral becomes club (52)
Helical blade periphery contact with rolling balling pipeline (51) inwall, described rolling balling pipeline (51) outer wall is provided with
Two assisted heating devices (53) and the second Pressure gauge；Described air cooling system includes cold wind rotating pipe (61), spiral wind
Cold bar (62) and cold wind input pipe (63), the entrance of described cold wind rotating pipe (61) and the end of rolling balling pipeline (51)
Being connected, be provided with the air-cooled bar of spiral (62) in this cold wind rotating pipe (61), the air-cooled bar of described spiral (62) is with spiral shell
The screw rod of vane sheet, the helical blade periphery of the air-cooled bar of spiral (62) contacts with cold wind rotating pipe (61) inwall, described
Cold wind rotating pipe (61) outer wall cold wind input pipe (63) is installed, described cold wind input pipe (63) is connected with cool air hose
Connect, in cold wind rotating pipe (61), be blown into cooling wind by this cold wind input pipe (63)；Described cold wind rotating pipe (61)
End and finished product ball discharge system and be connected；The prilling process of the plastic granulating equipment of this rotary collision concretely comprises the following steps:
The hot blast being mixed with powder in step one, high-pressure blast charging line enters ball formation system, and powder forms pipe at ball
Softening in road (41) and be collected as granule, granule gradually grows greatly ball under the screw action of spiral pelletize bar (42), at ball
In forming process, the helical blade periphery of spiral pelletize bar (42) and ball form the space between pipeline (41) inwall for defeated
Send proal supplementary powder, grow up for ball, wherein: ball forms pipeline (41) interior hot blast by the first auxiliary heating
Device (43) is heated to be 180～260 DEG C；
Ball after step 2, step one are grown up enters spiral rolling balling-up system, becomes the screw action of club (52) at spiral
The lower further molding of ball, wherein: rolling balling pipeline (51) interior hot blast is heated to be 100 by the second assisted heating device (53)
～160 DEG C；
Ball after step 3, step 4 molding enters air cooling system, by cold wind input pipe (63) to cold wind roll tube
Road is blown into cooling wind in (61), by ball hardening by cooling under the screw action of the air-cooled bar of spiral (62), enters finished product circle afterwards
System discharged by ball, obtains the finished product ball of a diameter of 4～6mm.
The prilling process of the plastic granulating equipment of a kind of rotary collision the most according to claim 1, it is characterised in that step
In one, ball forms pipeline (41) interior hot blast and is heated to be 210～230 DEG C by the first assisted heating device (43).
The prilling process of the plastic granulating equipment of a kind of rotary collision the most according to claim 1, it is characterised in that step
In two, rolling balling pipeline (51) interior hot blast is heated to be 130～140 DEG C by the second assisted heating device (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510690203.2A CN105128167B (en) | 2013-12-27 | 2013-12-27 | A kind of prilling process of the plastic granulating equipment of rotary collision |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310743393.0A CN103722634B (en) | 2013-12-27 | 2013-12-27 | A kind of plastic granulating equipment of rotary collision and prilling process thereof |
| CN201510690203.2A CN105128167B (en) | 2013-12-27 | 2013-12-27 | A kind of prilling process of the plastic granulating equipment of rotary collision |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310743393.0A Division CN103722634B (en) | 2013-12-27 | 2013-12-27 | A kind of plastic granulating equipment of rotary collision and prilling process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105128167A CN105128167A (en) | 2015-12-09 |
| CN105128167B true CN105128167B (en) | 2016-11-23 |
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ID=50447053
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510690203.2A Active CN105128167B (en) | 2013-12-27 | 2013-12-27 | A kind of prilling process of the plastic granulating equipment of rotary collision |
| CN201310743393.0A Expired - Fee Related CN103722634B (en) | 2013-12-27 | 2013-12-27 | A kind of plastic granulating equipment of rotary collision and prilling process thereof |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310743393.0A Expired - Fee Related CN103722634B (en) | 2013-12-27 | 2013-12-27 | A kind of plastic granulating equipment of rotary collision and prilling process thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110370487B (en) * | 2019-07-22 | 2021-05-18 | 绍兴正开智能设备有限公司 | Plastic granulator with plastic pellet outlet end ball rod moving in three-dimensional mode at double-roller angular speed |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101148075A (en) * | 2007-11-14 | 2008-03-26 | 天津市凯尔科技发展有限公司 | Petroleum resin ball granule and its production equipment and manufacturing method |
| CN101407584A (en) * | 2008-11-27 | 2009-04-15 | 牛金刚 | Method for repelleting polyacrylamide fine powder |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4299691B2 (en) * | 2003-02-24 | 2009-07-22 | 住化カラー株式会社 | Method for producing thermoplastic resin pellets |
| JP5017322B2 (en) * | 2009-07-06 | 2012-09-05 | 株式会社日本製鋼所 | Crushing and mixing granulation method and apparatus using a twin screw extruder |
| JP2012192677A (en) * | 2011-03-17 | 2012-10-11 | Sumitomo Chemical Co Ltd | Method for manufacturing polysulfone pellet |
| CN203637012U (en) * | 2013-12-27 | 2014-06-11 | 马鞍山市秋枫工程塑料异型材料制造有限责任公司 | Rotating collision plastic granulating device |
-
2013
- 2013-12-27 CN CN201510690203.2A patent/CN105128167B/en active Active
- 2013-12-27 CN CN201310743393.0A patent/CN103722634B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101148075A (en) * | 2007-11-14 | 2008-03-26 | 天津市凯尔科技发展有限公司 | Petroleum resin ball granule and its production equipment and manufacturing method |
| CN101407584A (en) * | 2008-11-27 | 2009-04-15 | 牛金刚 | Method for repelleting polyacrylamide fine powder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103722634B (en) | 2016-01-20 |
| CN105128167A (en) | 2015-12-09 |
| CN103722634A (en) | 2014-04-16 |
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Inventor after: Li Zhen Inventor before: Ji Shiquan |
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Effective date of registration: 20171025 Address after: 300404 Tianjin city Beichen District small lake town of Tianjin Elm Road No. 35 Building No. 401 Jiayang Garden Patentee after: Li Zhen Address before: 243000 Anhui province Ma'anshan mountain rain Tao Village Patentee before: Ma'anshan Qiufeng Engineering Plastic Allotypic Material Manufacture Co., Ltd. |
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Effective date of registration: 20180413 Address after: 210000 8 Lishui Yihu Road, Lishui Economic Development Zone, Nanjing, Jiangsu Patentee after: Nanjing Jinggong New Material Co Ltd Address before: 300404 Tianjin city Beichen District small lake town of Tianjin Elm Road No. 35 Building No. 401 Jiayang Garden Patentee before: Li Zhen |
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