CN206255846U - A kind of Graphene slurry line production system - Google Patents
A kind of Graphene slurry line production system Download PDFInfo
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- CN206255846U CN206255846U CN201621021521.6U CN201621021521U CN206255846U CN 206255846 U CN206255846 U CN 206255846U CN 201621021521 U CN201621021521 U CN 201621021521U CN 206255846 U CN206255846 U CN 206255846U
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- discharging opening
- temperature adjustment
- pipeline
- transfer kettle
- charging aperture
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Abstract
The utility model discloses a kind of Graphene slurry line production system.Including ball mill, first transfer kettle, sand mill, second transfer kettle, the discharging opening of the ball mill connects the charging aperture of the first transfer kettle by the first pipeline, the discharging opening of the first transfer kettle connects the charging aperture of the sand mill by second pipe, the discharging opening of the sand mill is connected by the 3rd pipeline with the charging aperture of the second transfer kettle, it is characterized in that, the discharging opening of the second transfer kettle connects ultrasonic wave distributing device by the 4th pipeline, the discharging opening of ultrasonic wave distributing device is sequentially connected storage bin by pipeline, the automatic weighing device being connected with storage bin, the mixer being connected with automatic weighing device, the automatic packaging machine being connected with mixer.The utility model system solves that existing high viscosity high solids content Graphene slurry dispersion high cost, slurry be uneven, solid content is low, dispersion efficiency and automaticity problem not high.
Description
Technical field
The utility model is related to chemical field, more particularly to a kind of Graphene slurry line production system.
Background technology
Graphene（Graphene）Be it is a kind of by carbon atom with sp2 hydridization Gui Dao Group into hexangle type in honeycomb lattice plane
Film, only a Ge carbon atom thickness bis- Victoria materials.It is but also most hard nano material that Graphene is currently world most thin,
It is almost fully transparent, only absorb 2.3% light；Heat conduction system Number Gao Da 5300W/m, higher than CNT and diamond, under normal temperature its
Electron mobility is more than 15000cm2/Vs and higher than CNT or silicon crystal, and resistivity only about 10-8 Ω/m, than copper or
Silver is lower, is that resistivity minimum material grapheme material in world is a kind of two-dimensional material, its excellent physics and architectural characteristic
Make it in electronics, sensing and photoelectric device etc. is multi-field shows outstanding application potential.Existing grapheme material is adopted mostly
Prepared with oxidation-reduction method.The advantages of oxidation-reduction method prepares grapheme material and has simple to operate, product machinability is good,
But the stability of product is poor.
Existing graphene dispersion equipment generally comprises following two：
（1）Ultrasonic wave dispersing apparatus：Laboratory scale, low-viscosity media dispersed graphite alkene are especially suitable for, for middle and high viscous
Can be restricted during degree medium.
（2）Grinding distribution equipment：It is adapted to dispersed graphite alkene, middle viscous media dispersed graphite alkene on a large scale.
Therefore, the dispersing apparatus that neither one is adapted to high viscosity high solids content Graphene slurry are up to the present gone back.
Application number 201320763674.8 discloses a kind of duplex dosing mixing plant of multi-layer graphene slurry, described many
The duplex dosing mixing plant of layer graphene slurry is exclusively used in dosing, agitation grinding slurry etc., and it mainly includes：Duplex is stirred
Bucket, disturbing flow device, agitating device, delivery pump, conveyance conduit, support and control system etc..The equipment is unsuitable for high viscosity Gao Gu
Content Graphene slurry.
Application number 201520858922.6 discloses a kind of agitating device of industrial Graphene slurry, and annular reaction kettle sets
Double-deck loop configuration is set to, annular incubation cavity is provided with the inner barn wall of internal layer annular reaction kettle, the surrounding of annular reaction kettle sets
Charging aperture is put, temperature sensor and several is arranged at intervals with charging aperture " W " shape structure blanking chamber, " W " shape structure blanking bottom of chamber
Two of portion converge lower end of duct and are provided with ring rotation disk, and spirality agitating paddle, ring are provided with the inwall of ring rotation disk
Shape rotating disk lower end connects the feed opening of cone structure, and the lateral wall of ring rotation disk is provided with driven gear, driven gear and
Driving gear is connected, and driving gear takes full advantage of the space of reactor by motor control.But, the device is viscous for height
Spend the dispersion effect of Graphene or undesirable.
Utility model content
For above-mentioned technical problem, the utility model proposes a kind of Graphene slurry line production system, solve existing high viscous
Degree high solids content Graphene slurry dispersion high cost, slurry are uneven, solid content is low, dispersion efficiency problem not high.
In order to realize above-mentioned technical purpose, the concrete technical scheme that the utility model is used is as follows：
A kind of Graphene slurry line production system, including ball mill, the first transfer kettle, sand mill, the second transfer kettle, it is described
The discharging opening of ball mill connects the charging aperture of the first transfer kettle by the first pipeline, and the discharging opening of the first transfer kettle leads to
The charging aperture that second pipe connects the sand mill is crossed, the discharging opening of the sand mill passes through the 3rd pipeline and second transfer
The charging aperture connection of kettle, the discharging opening of the second transfer kettle connects ultrasonic wave distributing device, ultrasonic wavelength-division by the 4th pipeline
The discharging opening put in bulk is sequentially connected automatic weighing device and automatic dress of weighing that storage bin is connected with storage bin by pipeline
Put the automatic packaging machine that connected mixer is connected with mixer；
Automatic weighing device includes weighing bucket and the weigher being connected with weighing bucket, and weighing bucket top is provided with charging
Mouthful, inlet valve is provided with charging aperture, weighing bucket bottom is provided with discharging opening, and discharge outlet is provided with outlet valve, and weigher includes position
In the sensor of weighing bucket bottom and the control element being connected with sensor, control element is electrically connected with inlet valve and outlet valve
Connect；
Automatic packaging machine, including filling mechanism, sealing mechanism and conveying mechanism, filling mechanism include loading hopper, positioned at plus
The control valve of hopper discharge outlet and the control device electrically connected with control valve, conveying mechanism and filling mechanism and sealing mechanism phase
Even, loading hopper discharge outlet is provided with bag pressing part, and bag pressing part includes the annular collar below the loading hopper discharging opening
And the cylinder being connected with annular collar, cylinder is connected by connecting rod with the annular collar.
The ultrasonic wave distributing device includes：Ultrasonic generating mechanism, dispersing chamber and rabbling mechanism；The ultrasonic generating mechanism
Ultrasonic wave vibration plate be in contact with the outer surface of the dispersing chamber；The dispersing chamber includes shell and interior room, and the interior room is formed
The puddler for having dispersion chamber, the rabbling mechanism is extended into the dispersion chamber；Also include the first temperature sensor, control module
And temperature adjustment pipe；First temperature sensor is arranged in the dispersion chamber；The temperature adjustment pipe is arranged at the interior room periphery, adjusts
Warm pipe is provided with temperature adjustment water inlet tube mouthful and temperature adjustment pipe delivery port, and the temperature adjustment water inlet tube mouthful passes sequentially through pipeline, water pump, storage tank
It is connected with water tap, water tap is provided with the first magnetic valve, second temperature sensor, heating dress is provided with storage tank
Put, the temperature adjustment pipe delivery port is provided with the second magnetic valve；The membrane pump.The stirring electricity of ultrasonic generating mechanism, rabbling mechanism
Machine, water pump, the first temperature sensor, second temperature sensor, the first magnetic valve, the second magnetic valve and heater with control
The control connection of molding block.
The temperature adjustment pipe is the coil pipe for being coiled in interior room periphery.
The ball mill is provided with dog-house.
The areas of dielectric for accommodating and liquid medium being conducted for ultrasonic wave is formed between the shell and the interior room.
The beneficial effects of the utility model are：
Have the following effects that compared with prior art：First, this method carried out using ball milling method it is pre-dispersed, can be by graphite
Alkene powder is uniform with solvent, dispersant, then slurry is further disperseed by way of being sanded, finally using ultrasonic wavelength-division
Dissipate, the whole dispersion process of the utility model device is weighed, stirs and packed using control module control, the storage of material, charging
Serialization pile line operation is realized, automaticity is improve, the occupied ground resource situation of intermediate raw material, and energy has both been saved
Man power and material is saved, processing efficiency is improved, full automation is realized, can efficiently, stably disperse to obtain Graphene.
In addition, automatic packaging machine is provided with bag pressing part in loading hopper discharge outlet, packaging bag can be closely pressed on
On loading hopper discharging opening, prevent mortar excessive, and the loss of mortar can be reduced, it is cost-effective, while being driven using cylinder
Annular collar is compressed, and improves automaticity, has saved labor cost.
Brief description of the drawings
Fig. 1 is a kind of Graphene slurry line production system structural representation of the utility model；
Wherein, 1. ball mill；2. the first transfer kettle；3. sand mill；4. the second transfer kettle；5. ultrasonic wave distributing device；
51. ultrasonic wave vibration plates；5231. imports；5232. outlets；52. dispersing chambers；521. shells；522, areas of dielectric；523. interior rooms；
524. heat-insulation layers；53. rabbling mechanisms；54. temperature sensors；55. feed pipes；56. temperature adjustment pipes；561. temperature adjustment water inlet tubes mouthful；
562. temperature adjustment pipe delivery ports；57. telescoping mechanisms；6. membrane pump；7. storage bin；8. automatic weighing device；9. mixer；10. certainly
Dynamic packing machine；101. loading hoppers；102. sealing mechanisms；103. conveying mechanisms；104. loading hopper discharging openings;105. control valves；
106. control devices；107. cylinders；108. connecting rods；109. annular collars.
Specific embodiment
Embodiment of the present utility model is elaborated below in conjunction with the accompanying drawings, the present embodiment is with the utility model technical side
Premised on case, detailed implementation method and specific operating process is given, but protection domain of the present utility model is not limited to down
The embodiment stated.
Embodiment one
Fig. 1 is referred to, Fig. 1 is a kind of structural representation of Graphene slurry line production system of the present utility model.
As shown in figure 1, a kind of Graphene slurry line production system, including ball mill, the first transfer kettle, sand mill, second
Transfer kettle, the discharging opening of the ball mill connects the charging aperture of the first transfer kettle, first transfer by the first pipeline
The discharging opening of kettle connects the charging aperture of the sand mill by second pipe, the discharging opening of the sand mill by the 3rd pipeline with
The charging aperture connection of the second transfer kettle, the discharging opening of the second transfer kettle connects ultrasonic wave distributing by the 4th pipeline
Put, the discharging opening of ultrasonic wave distributing device by pipeline be sequentially connected automatic weighing device that storage bin is connected with storage bin and
The automatic packaging machine that the connected mixer of automatic weighing device is connected with mixer；
Automatic weighing device includes weighing bucket and the weigher being connected with weighing bucket, and weighing bucket top is provided with charging
Mouthful, inlet valve is provided with charging aperture, weighing bucket bottom is provided with discharging opening, and discharge outlet is provided with outlet valve, and weigher includes position
In the sensor of weighing bucket bottom and the control element being connected with sensor, control element is electrically connected with inlet valve and outlet valve
Connect；
Automatic packaging machine, including filling mechanism, sealing mechanism and conveying mechanism, filling mechanism include loading hopper, positioned at plus
The control valve of hopper discharge outlet and the control device electrically connected with control valve, conveying mechanism and filling mechanism and sealing mechanism phase
Even, loading hopper discharge outlet is provided with bag pressing part, and bag pressing part includes the annular collar below the loading hopper discharging opening
And the cylinder being connected with annular collar, cylinder is connected by connecting rod with the annular collar.
Used as the further improvement of technical solutions of the utility model, the ultrasonic wave distributing device includes：Ultrasonic generation machine
Structure, dispersing chamber and rabbling mechanism；The ultrasonic wave vibration plate of the ultrasonic generating mechanism is in contact with the outer surface of the dispersing chamber；Institute
Stating dispersing chamber includes shell and interior room, and the interior room is formed with dispersion chamber, and the puddler of the rabbling mechanism extends into described point
Dissipate in chamber；Also include the first temperature sensor, control module and temperature adjustment pipe；First temperature sensor is arranged at the dispersion
In chamber；The temperature adjustment pipe is arranged at the interior room periphery, and temperature adjustment pipe is provided with temperature adjustment water inlet tube mouthful and temperature adjustment pipe delivery port, described
Temperature adjustment water inlet tube mouthful passes sequentially through pipeline, water pump, storage tank and is connected with water tap, and water tap is provided with the first electromagnetism
Valve, is provided with second temperature sensor, heater in storage tank, the temperature adjustment pipe delivery port is provided with the second magnetic valve；It is described
Membrane pump.Ultrasonic generating mechanism, the stirring motor of rabbling mechanism, water pump, the first temperature sensor, second temperature sensor,
One magnetic valve, the second magnetic valve and heater are connected with control module control.
Used as the further improvement of technical solutions of the utility model, the temperature adjustment pipe is the coil pipe for being coiled in interior room periphery.
Used as the further improvement of technical solutions of the utility model, the ball mill is provided with dog-house.
As the further improvement of technical solutions of the utility model, receiving is formed between the shell and the interior room and is used
The areas of dielectric of liquid medium is conducted in ultrasonic wave.
The use process of above-mentioned process units is as follows：
The top of ball mill 1 is provided with dog-house, and solvent and dispersant are first put into by dog-house, and first ball milling disperses dispersion liquid, then
Graphene powder is put into by dog-house, ball milling dispersion a period of time, mixture is well mixed；Will by membrane pump 6 on ball mill 1
Material is evacuated in the first transfer kettle 2, and material in first transfer kettle 2 is evacuated in sand mill 3 by membrane pump 6 on sand mill 3 carried out
It is sanded, the material after sand milling is beaten into the second transfer kettle 4, period controls the rotating speed of sand mill 3 and material flow (pump speed)
Membrane pump 6 is equipped with by the second transfer kettle 3 to control jitter time, after the completion of dispersion material is evacuated to ultrasonic wave distributing device 5
In further disperseed, the ultrasonic wave distributing device 5 includes：Ultrasonic generating mechanism, dispersing chamber 52 and rabbling mechanism；It is described
The ultrasonic wave vibration plate 51 of ultrasonic generating mechanism is in contact with the outer surface of the dispersing chamber 52；The dispersing chamber 52 include shell and
Interior room, the interior room is formed with dispersion chamber, and the puddler of the rabbling mechanism is extended into the dispersion chamber；Also include the first temperature
Degree sensor, control module and temperature adjustment pipe 56；First temperature sensor is arranged in the dispersion chamber, for dispersion chamber
The temperature of interior stirring material carries out real-time detection；The temperature adjustment pipe is arranged at the interior room periphery, and temperature adjustment pipe is provided with temperature adjustment pipe
Water inlet 561 and temperature adjustment pipe delivery port 562, the temperature adjustment water inlet tube mouthful 561 pass sequentially through pipeline and storage tank 57 and running water
Tap is connected, and water tap is provided with the first magnetic valve, storage tank 57 and is provided with second temperature sensor and heater, institute
State temperature adjustment pipe delivery port 562 and be provided with the second magnetic valve；The first temperature threshold and second are previously provided with the control module
Temperature threshold, the dispersion chamber temperature that first temperature sensor is transmitted is compared with the first temperature threshold, if dispersion chamber temperature
More than the first temperature threshold, then start and water pump, the cold water in storage tank is entered temperature adjustment pipe, to the cooling of dispersion chamber, work as dispersion
When chamber temperature is less than the first temperature threshold, water storage cavity inner heating device is opened, heater is by water temperature heating in storage tank to the
When two temperature thresholds are interval, control module control heater stop heating, and the second magnetic valve and water pump are opened simultaneously, on one side
Cold water in temperature adjustment pipe is released by the second magnetic valve, while identical with second temperature threshold value to increasing in temperature adjustment pipe by water pump
The water of water temperature, so that dispersion chamber remains at certain temperature range, dispersion effect is more preferable；In order that material in dispersion chamber
Further obtain preferably dispersion and thermally equivalent effect.
Automatic weighing device includes weighing bucket and the weigher being connected with weighing bucket, and weighing bucket top is provided with charging
Mouthful, weigh hopper can receive the material from storage bin by charging aperture, and inlet valve, weighing bucket bottom are provided with charging aperture
Discharging opening is provided with, discharging opening is connected with mixer, discharge outlet is provided with outlet valve, weighing bucket and weigher include at least two
Group.Weigher includes the control element for being located at the sensor of weighing bucket bottom and being connected with sensor, and sensor can receive
Gravity sensing from weighing bucket, and it is transformed into signal transmission to control element, control element is electric with inlet valve and outlet valve
The switch of connection, control inlet valve and outlet valve.Weighing bucket and weigher include 6 groups, 6 groups are also not necessarily limited to certainly, according to reality
Border needs to increase or decrease.The operation principle of the automatic weighing device is to open inlet valve, and material drops into weighing bucket
In, sensor can receive gravity sensing, and when material addition reaches the amount of regulation, control element can receive sensor
Signal, control inlet valve is closed, and then opens outlet valve, and compound is discharged into be stirred in mixer.It is stirred
Compound is fallen from tank diameter discharging opening, and transport is packed to automatic packaging machine.
Automatic packaging machine includes filling mechanism, sealing mechanism and conveying mechanism, and filling mechanism is including loading hopper, positioned at charging
The control valve of the discharge outlet that struggles against and the control device electrically connected with control valve, control device can detect the mortar amount of decentralization,
When ormal weight is reached, control device sends instruction, closes control valve, stops decentralization mortar.Conveying mechanism and filling mechanism
Mechanism is connected with sealing, and canned packed mortar can be transported to sealing mechanism by conveying mechanism, carry out sealing, by seam
The packed mortar of mouth is transported to appointed place by conveying mechanism again.
Loading hopper discharge outlet is provided with bag pressing part, and bag pressing part includes the annular collar below loading hopper discharging opening
And the cylinder being connected with annular collar, cylinder is connected by connecting rod with annular collar.In the course of work, by packaging bag from bottom to up
It is manually placed into annular collar, will be translated into outside annular collar outside the edge of packaging bag, then start cylinder, makes on annular collar
Move, be enclosed within loading hopper discharging opening, so that packaging bag has just been fixed on loading hopper discharging opening, sand in such pouring process
Slurry just will not produce excessive.
Claims (5)
1. a kind of Graphene slurry line production system, including ball mill, the first transfer kettle, sand mill, the second transfer kettle, the ball
The discharging opening of grinding machine connects the charging aperture of the first transfer kettle by the first pipeline, and the discharging opening of the first transfer kettle passes through
Second pipe connects the charging aperture of the sand mill, and the discharging opening of the sand mill passes through the 3rd pipeline and the second transfer kettle
Charging aperture connection, it is characterized in that, the discharging opening of the second transfer kettle connects ultrasonic wave distributing device by the 4th pipeline, surpasses
The discharging opening of sound wave dispersal device is sequentially connected automatic weighing device that storage bin is connected with storage bin and automatic by pipeline
The automatic packaging machine that the connected mixer of weighing device is connected with mixer；
Automatic weighing device includes weighing bucket and the weigher being connected with weighing bucket, and weighing bucket top is provided with charging aperture,
Inlet valve is provided with charging aperture, weighing bucket bottom is provided with discharging opening, and discharge outlet is provided with outlet valve, and weigher includes being located at and claims
The sensor of measuring bin bottom and the control element being connected with sensor, control element are electrically connected with inlet valve and outlet valve；
Automatic packaging machine, including filling mechanism, sealing mechanism and conveying mechanism, filling mechanism is including loading hopper, positioned at loading hopper
The control valve of discharge outlet and the control device electrically connected with control valve, conveying mechanism are connected with filling mechanism and sealing mechanism,
Loading hopper discharge outlet is provided with bag pressing part, bag pressing part include annular collar below the loading hopper discharging opening and with
The cylinder of annular collar connection, cylinder is connected by connecting rod with the annular collar.
2. Graphene slurry line production system according to claim 1, it is characterized in that, the ultrasonic wave distributing device bag
Include：Ultrasonic generating mechanism, dispersing chamber and rabbling mechanism；The ultrasonic wave vibration plate of the ultrasonic generating mechanism is outer with the dispersing chamber
Surface is in contact；The dispersing chamber includes shell and interior room, and the interior room is formed with dispersion chamber, the puddler of the rabbling mechanism
Extend into the dispersion chamber；Also include the first temperature sensor, control module and temperature adjustment pipe；First temperature sensor sets
It is placed in the dispersion chamber；The temperature adjustment pipe is arranged at the interior room periphery, and temperature adjustment pipe is provided with temperature adjustment water inlet tube mouthful and temperature adjustment
Pipe delivery port, the temperature adjustment water inlet tube mouthful passes sequentially through pipeline, water pump, storage tank and is connected with water tap, water tap
The first magnetic valve is provided with, second temperature sensor, heater are provided with storage tank, the temperature adjustment pipe delivery port is provided with
Two magnetic valves；The membrane pump, ultrasonic generating mechanism, the stirring motor of rabbling mechanism, water pump, the first temperature sensor, second
Temperature sensor, the first magnetic valve, the second magnetic valve and heater are connected with control module control.
3. Graphene slurry line production system according to claim 2, it is characterized in that：The temperature adjustment pipe is to be coiled in interior room
The coil pipe of periphery.
4. Graphene slurry line production system according to claim 1, it is characterized in that：The ball mill is provided with dog-house.
5. Graphene slurry line production system according to claim 2, it is characterized in that：Between the shell and the interior room
It is formed with the areas of dielectric for accommodating and liquid medium being conducted for ultrasonic wave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621021521.6U CN206255846U (en) | 2016-08-31 | 2016-08-31 | A kind of Graphene slurry line production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621021521.6U CN206255846U (en) | 2016-08-31 | 2016-08-31 | A kind of Graphene slurry line production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206255846U true CN206255846U (en) | 2017-06-16 |
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ID=59022285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621021521.6U Expired - Fee Related CN206255846U (en) | 2016-08-31 | 2016-08-31 | A kind of Graphene slurry line production system |
Country Status (1)
| Country | Link |
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| CN (1) | CN206255846U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106379892A (en) * | 2016-08-31 | 2017-02-08 | 无锡东恒新能源科技有限公司 | Slurry production line system |
| CN107628603A (en) * | 2017-10-31 | 2018-01-26 | 南京旭羽睿材料科技有限公司 | A kind of graphene industrial production device |
| CN108630338A (en) * | 2018-03-08 | 2018-10-09 | 北京地泽科技有限公司 | A kind of method, apparatus for producing graphene conductive slurry in batches and graphene conductive slurry prepared therefrom |
| CN110369087A (en) * | 2019-06-05 | 2019-10-25 | 福建创源石墨烯科技有限公司 | A kind of apparatus for grinding and dispersing of grapheme material |
| CN114015145A (en) * | 2019-12-30 | 2022-02-08 | 重庆市联发塑料科技股份有限公司 | Production process of biodegradable garbage bag |
| CN115301184A (en) * | 2022-08-01 | 2022-11-08 | 东莞市颖兴金属表面处理材料有限公司 | Full-automatic lubricant preparation and subpackaging structure and subpackaging method thereof |
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2016
- 2016-08-31 CN CN201621021521.6U patent/CN206255846U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106379892A (en) * | 2016-08-31 | 2017-02-08 | 无锡东恒新能源科技有限公司 | Slurry production line system |
| CN107628603A (en) * | 2017-10-31 | 2018-01-26 | 南京旭羽睿材料科技有限公司 | A kind of graphene industrial production device |
| CN107628603B (en) * | 2017-10-31 | 2020-01-17 | 南京旭羽睿材料科技有限公司 | Industrial production device for graphene |
| CN108630338A (en) * | 2018-03-08 | 2018-10-09 | 北京地泽科技有限公司 | A kind of method, apparatus for producing graphene conductive slurry in batches and graphene conductive slurry prepared therefrom |
| CN110369087A (en) * | 2019-06-05 | 2019-10-25 | 福建创源石墨烯科技有限公司 | A kind of apparatus for grinding and dispersing of grapheme material |
| CN114015145A (en) * | 2019-12-30 | 2022-02-08 | 重庆市联发塑料科技股份有限公司 | Production process of biodegradable garbage bag |
| CN114015145B (en) * | 2019-12-30 | 2023-01-03 | 重庆市联发塑料科技股份有限公司 | Production process of biodegradable garbage bag |
| CN115301184A (en) * | 2022-08-01 | 2022-11-08 | 东莞市颖兴金属表面处理材料有限公司 | Full-automatic lubricant preparation and subpackaging structure and subpackaging method thereof |
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Legal Events
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170616 Termination date: 20180831 |
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| CF01 | Termination of patent right due to non-payment of annual fee |