CN110901011A - Mixing extrusion natural exhaust flash compression device - Google Patents
Mixing extrusion natural exhaust flash compression device Download PDFInfo
- Publication number
- CN110901011A CN110901011A CN201911259621.0A CN201911259621A CN110901011A CN 110901011 A CN110901011 A CN 110901011A CN 201911259621 A CN201911259621 A CN 201911259621A CN 110901011 A CN110901011 A CN 110901011A
- Authority
- CN
- China
- Prior art keywords
- piston plate
- movable rod
- piston
- exhaust
- aiutage
- 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.)
- Granted
Links
- 238000007906 compression Methods 0.000 title claims abstract description 15
- 230000006835 compression Effects 0.000 title claims abstract description 15
- 238000001125 extrusion Methods 0.000 title claims abstract description 14
- 238000002156 mixing Methods 0.000 title claims description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 10
- 239000003345 natural gas Substances 0.000 claims description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 1
- 235000017491 Bambusa tulda Nutrition 0.000 claims 1
- 241001330002 Bambuseae Species 0.000 claims 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 1
- 239000011425 bamboo Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 12
- 229920001587 Wood-plastic composite Polymers 0.000 abstract description 9
- 239000011155 wood-plastic composite Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000011049 filling Methods 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000004898 kneading Methods 0.000 abstract 1
- 238000009423 ventilation Methods 0.000 abstract 1
- 239000000289 melt material Substances 0.000 description 10
- 239000000835 fiber Substances 0.000 description 7
- 239000002131 composite material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/275—Recovery or reuse of energy or materials
- B29C48/277—Recovery or reuse of energy or materials of materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/76—Venting, drying means; Degassing means
- B29C48/765—Venting, drying means; Degassing means in the extruder apparatus
- B29C48/766—Venting, drying means; Degassing means in the extruder apparatus in screw extruders
- B29C48/767—Venting, drying means; Degassing means in the extruder apparatus in screw extruders through a degassing opening of a barrel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
本发明涉及木塑复合材料制备技术领域，公开一种混炼挤出自然排气溢料压缩装置，包括挤出机筒，挤出机筒筒壁上开设排气口，排气口上覆盖有垂直于挤出机筒的排气筒，排气筒内设有活塞，排气筒末端安装有控制活塞移动的驱动机构，活塞包括与排气筒筒壁垂直且具有间距的上层活塞板和下层活塞板，上层活塞板和下层活塞板上均开设有通气孔，排气筒在活塞与驱动机构之间的筒壁上开设有排气孔，下层活塞板上垂直贯穿有一可平行于排气筒轴线方向移动的活动杆，活动杆朝向排气口的末端铰接有挡板，挡板外径与排气筒内径适配。装置可减少从排气口溢出的物料熔体的浪费，全过程自动化操作，效率高，有效保证高填充木塑复合材料的稳定挤出。
The invention relates to the technical field of wood-plastic composite material preparation, and discloses a kneading extrusion natural exhaust overflow compression device. In the exhaust cylinder of the extruder barrel, a piston is arranged in the exhaust cylinder, and a driving mechanism for controlling the movement of the piston is installed at the end of the exhaust cylinder. The upper piston plate and the lower piston plate are provided with ventilation holes. The exhaust cylinder is provided with an exhaust hole on the cylinder wall between the piston and the driving mechanism. The movable rod moves in the direction, the end of the movable rod facing the exhaust port is hinged with a baffle, and the outer diameter of the baffle is adapted to the inner diameter of the exhaust cylinder. The device can reduce the waste of material melt overflowing from the exhaust port, the whole process is automated, and the efficiency is high, effectively ensuring the stable extrusion of high-filling wood-plastic composite materials.
Description
Technical Field
The invention relates to the technical field of wood-plastic composite material preparation, in particular to a mixing extrusion natural exhaust flash compression device.
Background
The wood-plastic composite material is a novel composite material which has the double performances of plastic processing performance and wood texture and is prepared by fully utilizing agricultural and forestry wastes and plastic reclaimed materials. The content of the plant fiber serving as a main raw material of the wood-plastic composite material is usually over 50 percent, and the addition of the high-content plant fiber changes the rheological behavior of a resin matrix, increases the viscosity, deteriorates the fluidity and is difficult to process. On the other hand, the water content of the plant fiber is usually as high as 10%, the drying cost of the plant fiber through heating equipment is too high, the plant fiber is usually directly used, on the other hand, the biomass fiber also contains a large amount of organic volatile components, and the content of different biomass fibers is different. This just leads to wood-plastic composite to extrude unstable phenomenon because of the overweight production of moisture in the pelletization process of extruding, especially the natural gas vent, unstable fuse-element can overflow from the gas vent occasionally under the effect of unbalanced interior pressure, appears seriously spouting the material phenomenon even, and more serious can block up the gas vent, can increase the moisture content in the composite finally, leads to the follow-up unstability of strip of appearing, intermittent type nature even expects absolutely.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a mixing extrusion natural exhaust flash compression device capable of quickly recovering flash melt.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a mixing is extruded natural exhaust flash compressor arrangement, including extruding the barrel, set up the gas vent on the barrel wall of extruding the barrel, the gas vent coats and is stamped the aiutage that the barrel was extruded to the perpendicular to, be equipped with the piston in the aiutage, the actuating mechanism that control piston removed is installed to the aiutage end, the piston includes the upper piston plate and the lower floor piston plate that just have the interval perpendicularly with the barrel wall of aiutage, the air vent has all been seted up on upper piston plate and the lower floor piston plate, the aiutage has been seted up on the barrel wall of aiutage between piston and actuating mechanism, it has a movable rod that can be on a parallel with aiutage axis direction removal to run through perpendicularly on the lower floor piston plate, the movable rod articulates towards the end.
Furthermore, the other end of the movable rod is provided with a limiting shoulder for preventing the movable rod from being separated from the lower-layer piston plate.
Furthermore, the length dimension of the movable rod is equal to the distance from the lower surface of the upper piston plate to the lower surface of the lower piston plate.
And furthermore, the upper-layer piston plate is provided with a guide groove at the position corresponding to the limiting shoulder for embedding the limiting shoulder.
Still further, the movable rod penetrates through the center position of the lower piston plate.
Further, the inner diameter of the exhaust cylinder is larger than the outer diameter of the exhaust port.
Compared with the prior art, the invention has the following beneficial effects:
adopt, piston, movable rod and baffle combine together to carry out quick compression recovery to the melt material that highly fills wood-plastic composite granulation in-process and spill over from the gas vent and recycle, have reduced the waste of the material melt that spills over from the gas vent, but the device automation mechanized operation, it is efficient, effectively guarantee highly to fill wood-plastic composite's stable extrusion.
Drawings
FIG. 1 is a schematic structural diagram of a mixing extrusion natural gas discharge flash compression device described in example 1.
Detailed Description
The present invention will be further described with reference to the following detailed description, wherein the drawings are provided for illustrative purposes only and are not intended to be limiting; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example 1
As shown in figure 1, a mixing extrusion natural exhaust flash compression device comprises an extruder barrel 1, materials are melted and extruded in the extruder barrel 1 through a mixing screw 11, an exhaust port 12 is formed in the barrel wall of the extruder barrel 1, an exhaust barrel 2 perpendicular to the extruder barrel is covered on the exhaust port 12, the inner diameter of the exhaust barrel 2 is larger than the outer diameter of the exhaust port 12, a piston 3 is arranged in the exhaust barrel 2, a driving mechanism 4 for controlling the movement of the piston 3 is installed at the tail end of the exhaust barrel 2, the driving mechanism 4 is preferably a cylinder, the piston 3 is of a hollow structure and comprises an upper piston plate 31 and a lower piston plate 32 which are perpendicular to the barrel wall of the exhaust barrel 2 and have intervals, a plurality of vent holes 33 are formed in the upper piston plate and the lower piston plate, the vent holes 33 in the upper piston plate and the lower piston plate are preferably arranged in a one-to-one correspondence manner, and a plurality of vent holes 21 are formed in, the air rising from the exhaust port 12 passes through the vent hole 33 on the piston and then is exhausted through the exhaust hole 21, the movable rod 5 which can move in the direction parallel to the axis of the exhaust funnel vertically penetrates through the lower piston plate 32, the movable rod 5 is hinged with a baffle 6 towards the tail end of the exhaust port, the outer diameter of the baffle 6 is matched with the inner diameter of the exhaust funnel 2, and the movable rod penetrates through the central position of the lower piston plate.
The driving mechanism 4 covers the tail end of the exhaust cylinder 2, the telescopic end of the driving mechanism 4 is connected with the surface of the piston plate 31 on the upper layer of the piston, and the piston is controlled by the driving mechanism to slide.
The other end of the movable rod 5 is provided with a limiting shoulder 51 for preventing the movable rod from being separated from the lower-layer piston plate 32, and the peripheral size of the limiting shoulder is larger than the size of a hole of the lower-layer piston plate for the movable rod to pass through, so that the movable rod is ensured to be connected with the piston into a whole all the time.
The compression device of the embodiment aims to compress the material overflowing from the exhaust port back into the extruder barrel in a well-known manner by turning the baffle plate around the movable rod to be horizontal, and the baffle plate cannot be turned to be horizontal from the beginning in the process of contacting with the melt material, when the baffle plate is in an inclined state, the melt material may escape to the other side of the baffle plate, so that the melt material is wasted, and even the vent hole is blocked, therefore, the length of the movable rod 5 of the compression device is designed to be equal to the distance from the lower surface of the upper piston plate 31 to the lower surface of the lower piston plate 32, so that the movable rod 5 continuously moves towards the upper piston plate 31 under the pressure of the melt material when the baffle plate 6 contacts with the melt material, until the baffle plate 6 is attached to the lower surface of the lower piston plate 32, at the moment, the vent hole 33 is completely sealed by the baffle plate 6, and the piston 3 is driven by the driving mechanism 4 to continuously move downwards so that the overflowing .
For further playing a good guiding role for the movable rod, the upper-layer piston plate 31 is further provided with a guiding groove 311 at the position corresponding to the limiting shoulder for embedding the limiting shoulder 51, and after the limiting shoulder of the movable rod is embedded into the guiding groove, the baffle plate cannot generate any deviation in the process of compressing the melt material, so that a better compression effect is achieved.
The working flow of the compression device of the embodiment is as follows: when the high-filling wood-plastic composite material melt is mixed and extruded between the mixing screw and the extruder barrel, the melt is taken out from the mixing screw under the high-pressure action of water vapor and volatile gas and enters the exhaust barrel from the exhaust port, the water vapor and the volatile gas pass through the inclined baffle plate and then are discharged through the vent hole and the exhaust hole, the melt material is blocked between the lower surface of the baffle plate and the exhaust barrel, the baffle plate can be jacked upwards when the melt material is sufficient, the driving mechanism drives the piston to move downwards at the moment, the baffle plate is changed into a closed state under the action of the piston pressure and is attached to the lower piston plate, the vent hole in the piston is further sealed, the piston continues to move downwards to press the overflowing composite material melt material into the space between the mixing screw and the extruder barrel through the exhaust port, the mixing is continuously.
It should be understood that the above examples are only for clearly illustrating the technical solutions of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (6)
1. The utility model provides a mixing is extruded natural exhaust flash compressor arrangement, a serial communication port, including extruding the barrel, set up the gas vent on the barrel wall of extruding the barrel, the gas vent coats and is stamped the aiutage that the barrel was extruded to the perpendicular to, be equipped with the piston in the aiutage, the actuating mechanism that control piston removed is installed to the aiutage end, the piston includes the upper piston plate and the lower floor piston plate that just have the interval perpendicular with aiutage wall, the air vent has all been seted up on upper piston plate and the lower floor piston plate, the aiutage has been seted up on the section of thick bamboo wall between piston and actuating mechanism to the aiutage, it has a movable rod that can be on a parallel with aiutage axis direction removal to run through perpendicularly on the lower floor piston plate, the movable rod articulates towards.
2. The mixing extrusion natural gas discharge flash compressing apparatus as claimed in claim 1, wherein the other end of the movable rod is provided with a stop shoulder for preventing the movable rod from coming off the lower piston plate.
3. The mixing extrusion natural gas discharge flash compressing apparatus as claimed in claim 2, wherein the length dimension of the movable rod is equal to the distance from the lower surface of the upper piston plate to the lower surface of the lower piston plate.
4. The mixing extrusion natural gas discharge flash compression device of claim 3, wherein the upper piston plate is provided with a guide groove at a position corresponding to the limit shoulder for the limit shoulder to be inserted.
5. The mixing extrusion natural exhaust flash compression device as claimed in any one of claims 1 to 4, wherein the movable rod penetrates through the center of the lower piston plate.
6. The mixing extrusion natural gas discharge flash compression device of claim 1, wherein the inner diameter of the vent pipe is larger than the outer diameter of the vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911259621.0A CN110901011B (en) | 2019-12-10 | 2019-12-10 | Mixing extrusion natural exhaust flash compression device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911259621.0A CN110901011B (en) | 2019-12-10 | 2019-12-10 | Mixing extrusion natural exhaust flash compression device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110901011A true CN110901011A (en) | 2020-03-24 |
| CN110901011B CN110901011B (en) | 2021-09-10 |
Family
ID=69824016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911259621.0A Active CN110901011B (en) | 2019-12-10 | 2019-12-10 | Mixing extrusion natural exhaust flash compression device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110901011B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50155560A (en) * | 1974-06-06 | 1975-12-15 | ||
| JPS5715943A (en) * | 1980-07-02 | 1982-01-27 | Matsushita Electric Ind Co Ltd | Vacuum extruder |
| JPH09277351A (en) * | 1996-04-09 | 1997-10-28 | Japan Steel Works Ltd:The | Vent-up detection method and detector |
| EP1629958A1 (en) * | 2004-08-30 | 2006-03-01 | Plastik Textile S.p.a. | Barrel processor having a degassing means |
| CN102248649A (en) * | 2010-01-27 | 2011-11-23 | 科倍隆有限公司 | Method and plant for degasing polymer melts |
| CN202293291U (en) * | 2011-11-10 | 2012-07-04 | 上海金昌工程塑料有限公司 | Vacuum system of dual-screw extruder |
| CN204869592U (en) * | 2015-08-06 | 2015-12-16 | 常州绚铭新材料科技有限公司 | Take multi -functional discharge mechanism's metal plastic hydraulic pressure extruder |
| CN208215975U (en) * | 2018-03-26 | 2018-12-11 | 河源保利卡基塑胶科技有限公司 | A kind of single screw extrusion machine with degassing function |
| CN109501205A (en) * | 2018-12-07 | 2019-03-22 | 大连橡胶塑料机械有限公司 | Can on-line control degassing extruder |
-
2019
- 2019-12-10 CN CN201911259621.0A patent/CN110901011B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50155560A (en) * | 1974-06-06 | 1975-12-15 | ||
| JPS5715943A (en) * | 1980-07-02 | 1982-01-27 | Matsushita Electric Ind Co Ltd | Vacuum extruder |
| JPH09277351A (en) * | 1996-04-09 | 1997-10-28 | Japan Steel Works Ltd:The | Vent-up detection method and detector |
| EP1629958A1 (en) * | 2004-08-30 | 2006-03-01 | Plastik Textile S.p.a. | Barrel processor having a degassing means |
| CN102248649A (en) * | 2010-01-27 | 2011-11-23 | 科倍隆有限公司 | Method and plant for degasing polymer melts |
| CN202293291U (en) * | 2011-11-10 | 2012-07-04 | 上海金昌工程塑料有限公司 | Vacuum system of dual-screw extruder |
| CN204869592U (en) * | 2015-08-06 | 2015-12-16 | 常州绚铭新材料科技有限公司 | Take multi -functional discharge mechanism's metal plastic hydraulic pressure extruder |
| CN208215975U (en) * | 2018-03-26 | 2018-12-11 | 河源保利卡基塑胶科技有限公司 | A kind of single screw extrusion machine with degassing function |
| CN109501205A (en) * | 2018-12-07 | 2019-03-22 | 大连橡胶塑料机械有限公司 | Can on-line control degassing extruder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110901011B (en) | 2021-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110901011B (en) | Mixing extrusion natural exhaust flash compression device | |
| CN204095167U (en) | A kind of single-chamber type house refuse separating dry space from moist space extrusion separator | |
| CN204912323U (en) | Alloy bar base is with high -efficient automatic molding device | |
| CN207189904U (en) | Strip antichlor shaped device | |
| CN201803583U (en) | Dehydration and drying machine | |
| CN207373508U (en) | A kind of underwater blank extruding pelletization unit of double rank automatic chargings | |
| CN202200422U (en) | Natural rubber primary processing device | |
| CN203253412U (en) | Rolling dry-method granulator | |
| CN110900878B (en) | Granulation, exhaust and overflow removal device for high-filling wood-plastic composite material | |
| CN204902480U (en) | Twin -screw desiccator | |
| CN216658845U (en) | Extrusion molding device of high temperature resistant PEEK section bar | |
| CN110901010A (en) | Intermittent natural vent overflow return device | |
| CN111037885A (en) | Forced exhaust device for high-filling biomass material extrusion | |
| CN110421815A (en) | A kind of production technology of PE tubing | |
| CN201128223Y (en) | Exhaust device for rubber extruding machine | |
| CN1394729A (en) | Hight-pressure gypsum block and its continuously-forming machine | |
| CN105773792A (en) | Extruder opening of vacuum extruder suitable for extrusion molding of low-plasticity pug | |
| CN212827044U (en) | Molecular sieve extrusion molding device | |
| CN111037780A (en) | High-filling wood-plastic composite material rolling granulation device | |
| CN209492205U (en) | A kind of molding machine for straw granulator | |
| CN222178809U (en) | Straw hydraulic baling press | |
| CN214164140U (en) | Camellia oil production is with cold device that presses | |
| CN215523943U (en) | Active carbon bio-based raw material dehydration device | |
| CN206633473U (en) | A kind of forming machine of heat insulating work construction sheet material | |
| CN223814890U (en) | A vacuum drying device for fluorocarbon polymer powder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |