CN114808153A - Defoaming machine of high-viscosity chitosan solution - Google Patents
Defoaming machine of high-viscosity chitosan solution Download PDFInfo
- Publication number
- CN114808153A CN114808153A CN202210463217.0A CN202210463217A CN114808153A CN 114808153 A CN114808153 A CN 114808153A CN 202210463217 A CN202210463217 A CN 202210463217A CN 114808153 A CN114808153 A CN 114808153A
- Authority
- CN
- China
- Prior art keywords
- tank body
- chitosan solution
- stirring shaft
- guide plate
- defoaming machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/10—Filtering or de-aerating the spinning solution or melt
- D01D1/103—De-aerating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The invention relates to a defoaming machine for a high-viscosity chitosan solution, which comprises a tank body and a stirring device, wherein a feed inlet is formed in the upper part of the tank body, a discharge outlet is formed in the bottom of the tank body, a feed pipe is arranged in the tank body and is communicated with the feed inlet, at least two guide plates are arranged below the feed pipe in the tank body, each guide plate is obliquely arranged downwards, a plurality of liquid outlet holes are formed in the positions, corresponding to the uppermost guide plate, of the feed pipe, the upper guide plate can guide the chitosan solution to the lower guide plate, the lowermost guide plate can guide the chitosan solution to the bottom of the tank body, the stirring device comprises a stirring shaft and a power mechanism, the stirring shaft is arranged on the tank body and can rotate around a central shaft of the stirring shaft and move up and down along the central shaft of the stirring shaft, the end part, extending into the tank body, of the stirring shaft is connected with a rotating seat, and a plurality of knives are arranged on the lower end surface of the rotating seat at intervals. By adopting the scheme, the defoaming device is suitable for defoaming high-viscosity chitosan solution and has a good defoaming effect.
Description
Technical Field
The invention relates to the technical field of defoaming equipment, in particular to a defoaming machine for a high-viscosity chitosan solution.
Background
The chitosan fiber is prepared from the extract of shrimp and crab shells, and has a plurality of special advantages compared with the traditional terrestrial natural fiber and synthetic fiber. Firstly, the method does not depend on petroleum and compete for land with grains, and a third raw material source of chemical fibers is developed; and secondly, the waste is utilized, so that the method conforms to the sustainable development trend of green and environmental protection. Furthermore, the pure chitosan fiber has broad-spectrum antibacterial activity, mildew resistance, excellent biocompatibility and no immunogenicity, and also has the effects of adsorbing and chelating, stopping bleeding, promoting healing and reducing scars. Based on the function, the fabric can be widely applied to the fields of aerospace, medical treatment and health, military and civil textiles, filtration and protection and the like, has huge market potential, and simultaneously plays a positive role in promoting the health career of human beings.
The degree of deacetylation and viscosity are two important quality indicators of chitosan. As is well known, the higher the molecular weight of chitosan, the higher the viscosity thereof, and the relation between viscosity and molecular weight, Mark-Houwink shows that: [ eta ] = K M alpha, (eta: viscosity, mpa · s, K: constant, M: relative molecular mass, alpha: a value related to molecular weight) it can be seen that the higher the viscosity of the pure chitosan dope, the larger the molecular weight, the higher the dry breaking strength of the spun pure chitosan fiber, the larger the breaking elongation, and the better the spinnability. Therefore, only the high-viscosity chitosan solution meets the spinning requirement of the high-performance chitosan fiber better.
A key link for preparing chitosan fiber is to dissolve chitosan raw material, the chitosan raw material is generally flaky chitosan, a large amount of gaps can be generated in tissues of the flaky chitosan after decalcification and deproteinization, and the gaps can be filled with air; in addition, the flaky chitosan raw material is formed by laminating 2 or more sheets, a large amount of gas is also stored in gaps, and the gas is bonded in the chitosan solution in the chitosan dissolving process and cannot escape; meanwhile, a large amount of bubbles are generated in the processes of stirring, dissolving, filtering and conveying of the chitosan solution.
In wet spinning, the chitosan solution must be ejected from a spinneret into a coagulating bath without bubbles, and if the chitosan solution is ejected to the coagulating bath with bubbles, the bubbles escape to cause filament breakage, so that defoaming treatment must be performed before spinning.
Disclosure of Invention
The invention overcomes the defects of the prior art, and provides the defoaming machine for the high-viscosity chitosan solution, which is suitable for defoaming treatment of the high-viscosity chitosan solution and has good defoaming effect.
In order to achieve the purpose, the invention adopts the technical scheme that: a defoaming machine for high-viscosity chitosan solution comprises a tank body and a stirring device, wherein a feed inlet is arranged at the upper part of the tank body, a discharge outlet is arranged at the bottom of the tank body, a feed pipe is arranged in the tank body and is communicated with the feed inlet, the tank body is provided with at least two guide plates below the feed pipe, each guide plate is sequentially arranged from top to bottom, each guide plate is downwards inclined and arranged respectively, the feed pipe is provided with a plurality of liquid outlet holes at the guide plate corresponding to the uppermost part, the guide plate positioned above can guide the chitosan solution to the guide plate positioned below, the guide plate positioned below can guide the chitosan solution to the bottom of the tank body, the stirring device comprises a stirring shaft and a power mechanism, the stirring shaft is arranged along the central axis of the tank body, the stirring shaft can rotate around the central axis of the stirring shaft and can move up and down along the central axis of the stirring shaft, the end connection that the (mixing) shaft stretched into jar body has the seat of rotating, and the lower terminal surface that rotates the seat is provided with a plurality of sword along its length direction interval, and power unit drives the (mixing) shaft and rotates, be provided with the actuating mechanism that drives the (mixing) shaft and reciprocate on the jar body.
By adopting the scheme, high-viscosity chitosan solution with pressure enters the feeding pipe through the feeding hole and is extruded from the liquid outlet hole, because the diameter of the liquid outlet hole is very small, and the pressure in the tank body is less than 3000pa, the chitosan solution freely falls onto the uppermost guide plate under the action of gravity, bubbles in the chitosan solution are sheared when being separated from the liquid outlet hole, the interface layer of the chitosan solution is changed, the bubbles quickly fall out, and the first defoaming process of high-pressure separation shearing is completed; when the chitosan solution uniformly trickles on the uppermost guide plate, due to the action of gravity and the inclination angle of the guide plate, the chitosan solution flows from the inner edge of the guide plate to the outer edge of the guide plate, so that a solution film is formed, the defoaming area is increased, part of bubbles are freely removed under the condition that the pressure in the tank body is less than 3000pa, the chitosan solution freely flows down to the outer edge of the guide plate under the action of gravity, and when the chitosan solution flows down to the lower edge of the guide plate, the outer edge of the guide plate generates a shearing action on the chitosan solution, a chitosan solution interface layer is changed, the bubbles are quickly removed, and the second defoaming process of membrane scraping and shearing is completed; therefore, the number of the guide plates is increased, the times of defoaming can be increased, the guide plate positioned at the lowest part can guide the chitosan solution to the bottom of the tank body, the defoaming operation can also be completed, the chitosan solution falls into the bottom of the tank body and is in a static state for a long time, bubbles in the chitosan solution are separated and can float on the upper surface of the chitosan solution, the stirring shaft drives the knife on the rotating seat to move downwards to a position below the liquid level, the rotating seat rotates to cut the floating bubbles, the liquid level of the chitosan solution rises as the chitosan solution at the bottom of the tank body gathers more and more, the stirring shaft can drive the rotating seat to move upwards to adapt to liquid levels with different heights, and certainly, because the chitosan solution is high, the knife cannot move into the chitosan solution too deeply, and the defect that the chitosan solution at the bottom of the tank body is difficult to defoam by adopting a dynamic and static combination mode, therefore, the method is suitable for defoaming treatment of the high-viscosity chitosan solution and has good defoaming effect.
The invention further provides that: the inlet pipe ring shape setting, the guide plate ring shape distribute, the centre department of each guide plate sets up the passageway that supplies the (mixing) shaft to wear to establish.
Through adopting above-mentioned scheme, inlet pipe and guide plate all encircle and distribute, not only can increase the deaeration area like this, can not influence the (mixing) shaft moreover and reciprocate and rotate, simple structure, reasonable in design.
The invention further provides that: the included angle between two adjacent guide plates is 15-45 degrees.
By adopting the scheme, the arrangement of the included angle interval not only enables the chitosan solution to flow on the guide plate, but also can slow down the speed reduction of the chitosan solution, so that bubbles in the chitosan solution can be fully separated.
The invention further provides that: the outer edge of the guide plate positioned at the lowest part extends to the side wall of the tank body, and the chitosan solution can be guided to the side wall of the tank body.
By adopting the above scheme, chitosan solution flows into the bottom of the tank body through the side wall of the tank body, and when flowing along the side wall of the tank body, a solution film can be formed, the defoaming area can be increased, bubbles can be conveniently removed, the structure is simple, and the design is reasonable.
The invention further provides that: the power mechanism comprises a motor device and a mounting seat, the motor device is fixedly arranged on the mounting seat, an output shaft of the motor device and the stirring shaft are arranged on the same central shaft, the output shaft of the motor device is in linkage connection with the stirring shaft, and the mounting seat is arranged on the tank body in a sliding manner along the vertical direction.
Through adopting above-mentioned scheme, electric machine includes motor and speed reduction structure, and electric machine's output shaft passes through the transmission cover and is connected with the (mixing) shaft linkage, can drive the (mixing) shaft and rotate, and the jar body is provided with the guide bar along vertical direction, and the mount pad slides the cooperation with the guide bar direction.
The invention further provides that: the driving mechanism comprises an air cylinder or a hydraulic cylinder, a telescopic rod of the air cylinder or the hydraulic cylinder is arranged along the vertical direction, and the telescopic rod of the air cylinder or the hydraulic cylinder is fixedly connected with the mounting seat.
By adopting the above scheme, be provided with the crossbeam on the guide bar, cylinder or pneumatic cylinder install on the crossbeam, and the telescopic link of cylinder or pneumatic cylinder is flexible removal downwards, can drive the mount pad and move down to drive the (mixing) shaft and move down.
The invention further provides that: the guide plate of the top is connected with the upper side wall of the tank body through a first connecting plate, two adjacent guide plates are connected with each other through a second connecting plate, and the inner edge of the guide plate positioned below is provided with a baffle.
Through adopting above-mentioned scheme, the connected mode of guide plate is simple, and the baffle plays backstop effect, avoids flowing from the inner edge department of the guide plate of below from the chitosan solution that the guide plate of top left.
The invention further provides that: the tank body is also provided with an inlet hole, a thermometer port, a vacuum port, a pressure gauge port, an air inlet, an acetic acid solution inlet, a safety valve port, a sampling port, a water inlet and a viewing port.
By adopting the scheme, the structure is simple, and the design is reasonable.
The invention is further described below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a schematic top view of an embodiment of the present invention;
FIG. 3 is an enlarged view of the portion B of FIG. 1;
fig. 4 is a schematic structural view of the rotary base and the knife.
Detailed Description
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-4, a defoaming machine for high-viscosity chitosan solution comprises a tank body 1 and a stirring device, wherein a feed inlet 11 is arranged at the upper part of the tank body 1, a discharge outlet 12 is arranged at the bottom of the tank body 1, a feed pipe 2 is fixedly arranged in the tank body 1, the feed pipe 2 is communicated with the feed inlet 11, at least two guide plates 3 are arranged below the feed pipe 2 in the tank body 1, each guide plate 3 is sequentially arranged from top to bottom, each guide plate 3 is respectively arranged in a downward inclination manner, the feed pipe 2 is provided with a plurality of liquid outlet holes 21 at positions corresponding to the uppermost guide plate 3, the upper guide plate 3 can guide the chitosan solution to the lower guide plate 3, the lowermost guide plate 3 can guide the chitosan solution to the bottom of the tank body 1, the stirring device comprises a stirring shaft 41 and a power mechanism, the stirring shaft 41 is arranged along the central axis of the tank body 1, the stirring shaft 41 can rotate around the central axis thereof and is arranged on the tank body 1 along the central axis thereof in a way of moving up and down, the end part of the stirring shaft 41 extending into the tank body 1 is fixedly connected with a rotating seat 42, the lower end surface of the rotating seat 42 is provided with a plurality of knives 43 at intervals along the length direction thereof, a power mechanism drives the stirring shaft 41 to rotate, and the tank body 1 is provided with a driving mechanism for driving the stirring shaft 41 to move up and down. Wherein the number of the baffles 3 can be determined according to actual needs.
In this embodiment, inlet pipe 2 forms the ring canal setting, and feed inlet 11 can be corresponding set up a plurality ofly, and guide plate 3 forms the ring and distributes, specifically can be for the umbelliform setting, and the department sets up the passageway 13 that supplies (mixing) shaft 41 to wear to establish in the middle of each guide plate 3. Of course, the feed pipe and the guide plate can be of a sectional structure.
In this embodiment, the included angle a between two adjacent baffles 3 is 15 to 45 degrees.
In this embodiment, the outer edge of the lowermost baffle 3 extends to the side wall of the tank body 1, so as to guide the chitosan solution to the side wall of the tank body 1. Of course, the chitosan solution can also directly flow into the bottom of the tank body through the outer edge of the lowest guide plate.
In this embodiment, the power mechanism includes a motor device 51 and a mounting seat 52, the motor device 51 is fixedly disposed on the mounting seat 52, an output shaft 511 of the motor device 51 and the stirring shaft 41 are disposed coaxially, the output shaft 511 of the motor device 51 and the stirring shaft are directly or indirectly connected in a linkage manner, the tank body 1 is provided with a guide rod 14 along the vertical direction, the mounting seat 52 and the guide rod 14 are in guide sliding fit, and the mounting seat 52 is disposed on the tank body 1 in a guide sliding manner along the vertical direction.
In this embodiment, the driving mechanism includes an air cylinder or a hydraulic cylinder 6, the telescopic rod of the air cylinder or the hydraulic cylinder 6 is disposed along the vertical direction, and the telescopic rod of the air cylinder or the hydraulic cylinder 6 is fixedly connected with the mounting seat 52.
In this embodiment, the uppermost deflector 3 is connected to the upper sidewall of the tank 1 through the first connecting plate 71, two adjacent deflectors 3 are connected to each other through the second connecting plate 72, and the baffle 31 is fixed or integrally provided at the inner edge of the lower deflector 3.
In this embodiment, the tank 1 is further provided with an inlet hole 15, a temperature measuring port 16, a vacuum port 17, a pressure gauge port 18, an air inlet 19, an acetic acid solution inlet 110, a relief valve port 111, a sampling port 112, a water inlet 113, and a viewing port 114.
The above embodiments are merely preferred embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a defoaming machine of high viscosity chitosan solution, includes a jar body and agitating unit, the upper portion of jar body is provided with the feed inlet, and the bottom of jar body is provided with discharge gate, its characterized in that: the stirring device comprises a stirring shaft and a power mechanism, wherein the stirring shaft is arranged along the central axis of the tank body, the stirring shaft can rotate around the central axis and is arranged on the tank body in a manner of moving up and down along the central axis, the end part of the stirring shaft extending into the tank body is connected with a stirring shaft rotating seat, the lower end surface of the rotating seat is provided with a plurality of knives at intervals along the length direction, and the power mechanism drives the stirring shaft to rotate, and the tank body is provided with a driving mechanism for driving the stirring shaft to move up and down.
2. The defoaming machine for high-viscosity chitosan solution according to claim 1, characterized in that: the inlet pipe ring shape setting, the guide plate ring shape distribute, the centre department of each guide plate sets up the passageway that supplies the (mixing) shaft to wear to establish.
3. The defoaming machine for high-viscosity chitosan solution according to claim 1 or 2, characterized in that: the included angle between two adjacent guide plates is 15-45 degrees.
4. The defoaming machine for high-viscosity chitosan solution according to claim 1 or 2, characterized in that: the outer edge of the guide plate positioned at the lowest part extends to the side wall of the tank body, and the chitosan solution can be guided to the side wall of the tank body.
5. The defoaming machine for high-viscosity chitosan solution according to claim 1 or 2, characterized in that: the power mechanism comprises a motor device and a mounting seat, the motor device is fixedly arranged on the mounting seat, an output shaft of the motor device and the stirring shaft are arranged on the same central shaft, the output shaft of the motor device is in linkage connection with the stirring shaft, and the mounting seat slides on the tank body along the vertical direction.
6. The defoaming machine for high-viscosity chitosan solution according to claim 5, characterized in that: the driving mechanism comprises an air cylinder or a hydraulic cylinder, a telescopic rod of the air cylinder or the hydraulic cylinder is arranged along the vertical direction, and the telescopic rod of the air cylinder or the hydraulic cylinder is fixedly connected with the mounting seat.
7. The defoaming machine for high-viscosity chitosan solution according to claim 1 or 2, characterized in that: the guide plate of the top is connected with the upper side wall of the tank body through a first connecting plate, two adjacent guide plates are connected with each other through a second connecting plate, and the inner edge of the guide plate positioned below is provided with a baffle.
8. The defoaming machine for high-viscosity chitosan solution according to claim 1 or 2, characterized in that: the tank body is also provided with an inlet hole, a thermometer port, a vacuum port, a pressure gauge port, an air inlet, an acetic acid solution inlet, a safety valve port, a sampling port, a water inlet and a viewing port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210463217.0A CN114808153A (en) | 2022-04-28 | 2022-04-28 | Defoaming machine of high-viscosity chitosan solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210463217.0A CN114808153A (en) | 2022-04-28 | 2022-04-28 | Defoaming machine of high-viscosity chitosan solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114808153A true CN114808153A (en) | 2022-07-29 |
Family
ID=82508784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210463217.0A Pending CN114808153A (en) | 2022-04-28 | 2022-04-28 | Defoaming machine of high-viscosity chitosan solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114808153A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7454780B1 (en) | 2022-11-03 | 2024-03-25 | 温州佳遠生物科技有限公司 | How to produce pure chitosan fiber |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203494229U (en) * | 2013-09-02 | 2014-03-26 | 海斯摩尔生物科技有限公司 | Defoaming device for high-viscosity pure-chitosan spinning solution |
| CN205649892U (en) * | 2016-05-23 | 2016-10-19 | 南雄市科鼎化工有限公司 | Vacuum defoaming machine |
| CN108043071A (en) * | 2017-12-12 | 2018-05-18 | 浙江凯盈新材料有限公司 | A kind of deaeration agitating device of silver paste |
| CN110158161A (en) * | 2019-05-07 | 2019-08-23 | 中国人民解放军国防科技大学 | Uniform sticking/defoaming integrated device and method for ceramic precursor polymer spinning melt |
| CN211936680U (en) * | 2020-03-10 | 2020-11-17 | 广东众远新材料科技有限公司 | Agitating unit that stirring roller reciprocated |
| CN212549179U (en) * | 2020-05-22 | 2021-02-19 | 南通新玮镍钴科技发展有限公司 | Automatic solution mixing device |
| CN113617064A (en) * | 2020-05-09 | 2021-11-09 | 中国石油化工股份有限公司 | Continuous defoaming device for high-viscosity fluid, application of continuous defoaming device and defoaming method for polyamide acid spinning solution |
| CN215781698U (en) * | 2021-09-27 | 2022-02-11 | 上海禧合应用材料有限公司 | Vacuum defoaming device |
-
2022
- 2022-04-28 CN CN202210463217.0A patent/CN114808153A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203494229U (en) * | 2013-09-02 | 2014-03-26 | 海斯摩尔生物科技有限公司 | Defoaming device for high-viscosity pure-chitosan spinning solution |
| CN205649892U (en) * | 2016-05-23 | 2016-10-19 | 南雄市科鼎化工有限公司 | Vacuum defoaming machine |
| CN108043071A (en) * | 2017-12-12 | 2018-05-18 | 浙江凯盈新材料有限公司 | A kind of deaeration agitating device of silver paste |
| CN110158161A (en) * | 2019-05-07 | 2019-08-23 | 中国人民解放军国防科技大学 | Uniform sticking/defoaming integrated device and method for ceramic precursor polymer spinning melt |
| CN211936680U (en) * | 2020-03-10 | 2020-11-17 | 广东众远新材料科技有限公司 | Agitating unit that stirring roller reciprocated |
| CN113617064A (en) * | 2020-05-09 | 2021-11-09 | 中国石油化工股份有限公司 | Continuous defoaming device for high-viscosity fluid, application of continuous defoaming device and defoaming method for polyamide acid spinning solution |
| CN212549179U (en) * | 2020-05-22 | 2021-02-19 | 南通新玮镍钴科技发展有限公司 | Automatic solution mixing device |
| CN215781698U (en) * | 2021-09-27 | 2022-02-11 | 上海禧合应用材料有限公司 | Vacuum defoaming device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7454780B1 (en) | 2022-11-03 | 2024-03-25 | 温州佳遠生物科技有限公司 | How to produce pure chitosan fiber |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2015027958A2 (en) | Defoaming apparatus for high-viscosity pure-chitosan spinning solution | |
| CN114808153A (en) | Defoaming machine of high-viscosity chitosan solution | |
| WO2015027957A1 (en) | Composite defoaming method for high-viscosity pure-chitosan spinning solution | |
| CN113210078B (en) | Plant extraction and purification equipment | |
| CN111411407B (en) | Production process of regenerated super-dull elastic composite yarn | |
| CN203494229U (en) | Defoaming device for high-viscosity pure-chitosan spinning solution | |
| CN208660414U (en) | A kind of Chinese medicine feeds intake extraction element | |
| CN111362495B (en) | Energy-saving sewage treatment device | |
| CN112452707A (en) | Kiwi fruit pollen separator | |
| CN214808576U (en) | Sodium alginate production is with drawing jar | |
| CN114775069B (en) | Spinning solution defoaming method for industrially producing pure chitosan fibers | |
| CN209972828U (en) | Defoaming and stirring device for beverage filling machine | |
| CN110904707B (en) | Continuous hydraulic pulper | |
| CN210215638U (en) | Resistant cutting graphite alkene ultra high molecular weight polyethylene fiber spinning equipment | |
| CN211412358U (en) | Defoaming device for flotation clean coal | |
| CN216725795U (en) | Electronic grade vitamin C purification device | |
| CN215742989U (en) | Suspension liquid fertilizer blending tank | |
| CN207738897U (en) | Silkworm chrysalis lining processing unit (plant) | |
| CN219328783U (en) | In-vitro reagent utility test equipment | |
| CN209162275U (en) | A kind of efficient scutching cotton device | |
| CN220402957U (en) | Tea processing is with tea dispenser | |
| CN208562976U (en) | A kind of energy-saving anti-corrosive fiber beating apparatus | |
| CN208990950U (en) | Chinese medicine shredding machine | |
| CN219546962U (en) | Separation and extraction device | |
| CN215142115U (en) | Down feather cutting machine |
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 |