CN222331883U - High-efficient cellulose ethanol synchronous saccharification fermenting installation - Google Patents
High-efficient cellulose ethanol synchronous saccharification fermenting installation Download PDFInfo
- Publication number
- CN222331883U CN222331883U CN202420116067.0U CN202420116067U CN222331883U CN 222331883 U CN222331883 U CN 222331883U CN 202420116067 U CN202420116067 U CN 202420116067U CN 222331883 U CN222331883 U CN 222331883U
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- China
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- fixedly connected
- wall
- mixing bin
- bevel gear
- fluted disc
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 28
- 229920002678 cellulose Polymers 0.000 title claims abstract description 25
- 239000001913 cellulose Substances 0.000 title claims abstract description 25
- 238000009434 installation Methods 0.000 title description 2
- 238000002156 mixing Methods 0.000 claims abstract description 38
- 238000000855 fermentation Methods 0.000 claims abstract description 34
- 230000004151 fermentation Effects 0.000 claims abstract description 34
- 238000003756 stirring Methods 0.000 claims abstract description 23
- 238000007790 scraping Methods 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 108010059892 Cellulase Proteins 0.000 abstract description 3
- 229940106157 cellulase Drugs 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract description 2
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 9
- 239000007789 gas Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002481 ethanol extraction Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
Landscapes
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
The utility model relates to the technical field of biological fermentation equipment and discloses a high-efficiency cellulose ethanol synchronous saccharification and fermentation device which comprises a mixing bin, wherein a cover plate is arranged at the top of the mixing bin, a first motor is fixedly connected inside the cover plate, a spur gear is fixedly connected to the output end of the first motor, a fluted disc is rotatably connected inside the cover plate, the fluted disc is meshed with the spur gear, a scraping plate is fixedly connected to one side of the outer wall of the fluted disc, the outer walls of the scraping plates are all in sliding connection with the inner wall of the mixing bin, and a stirring rod I is fixedly connected to the other side of the outer wall of the fluted disc. According to the utility model, firstly, the motor drives the spur gear to rotate, and then the fluted disc is driven to rotate, and the scraping plate is driven to scrape off materials on the inner wall of the mixing bin, so that the wall sticking prevention effect is achieved, the problem of uneven quality of produced ethanol caused by insufficient stirring is solved, and the effect of fully stirring cellulase and fermentation liquor to stabilize the production quality of the ethanol is achieved.
Description
Technical Field
The utility model relates to the technical field of biological fermentation equipment, in particular to a high-efficiency cellulose ethanol synchronous saccharification and fermentation device.
Background
High-efficiency cellulose ethanol synchronous saccharification is a biotechnology for converting cellulose raw materials into fuel ethanol. With the increasing global energy demand and the increasing environmental pollution problems, the use of cellulosic ethanol as a renewable energy source to replace fossil fuels (e.g., petroleum, coal, etc.) is of great importance. The high-efficiency cellulose ethanol synchronous saccharification technology can be used for producing fuel ethanol on a large scale, so that the dependence on non-renewable energy sources is reduced, the emission of greenhouse gases is reduced, and in the process, saccharification, fermentation and ethanol extraction of cellulose are three key steps. The fermentation device plays a vital role in these three steps.
The search is carried out in a bulletin No. CN209113877U, which discloses a high-efficiency cellulose ethanol synchronous saccharification and fermentation device, comprising a synchronous saccharification and fermentation tank, a liquid collecting tank and a gas stripping column, wherein a spiral heating half pipe is arranged on the outer wall of the synchronous saccharification and fermentation tank, a stirrer is arranged in the tank body, a motor is arranged at the top of the tank body, a feed inlet is arranged at the upper part of the tank body, a discharge outlet is arranged at the lower part of the tank body, the discharge outlet is divided into a material outlet I and a material outlet II, the material outlet II is connected with the liquid collecting tank through a pipeline, the liquid collecting tank is connected with the gas stripping column, the upper end socket of the gas stripping column is provided with a gas outlet, the bottom of the gas outlet and the gas distributor are provided with overflow ports, and the overflow ports are connected to the top of the synchronous saccharification and fermentation tank through circulation pipes. According to the utility model, on the premise of realizing synchronous saccharification and enzymolysis, the inhibition effect of ethanol on fermentation is effectively reduced, and the utilization rate of enzymolysis products is improved, and as the whole circulation process is 72 hours, compared with the traditional process, the total enzymolysis and fermentation time is shortened, so that the ethanol yield is further improved.
Disclosure of utility model
In order to make up for the defects, the utility model provides a high-efficiency cellulose ethanol synchronous saccharification and fermentation device, which aims to solve the problem that the quality of produced ethanol is uneven due to insufficient stirring during pretreatment of cellulase and fermentation liquor.
The technical scheme is that the efficient cellulose ethanol synchronous saccharification and fermentation device comprises a mixing bin, a cover plate is arranged at the top of the mixing bin, a first motor is fixedly connected to the inside of the cover plate, a spur gear is fixedly connected to the output end of the first motor, a fluted disc is rotatably connected to the inside of the cover plate, the fluted disc is meshed with the spur gear, a scraping plate is fixedly connected to one side of the outer wall of the fluted disc, the outer wall of the scraping plate is slidably connected to the inner wall of the mixing bin, a stirring rod I is fixedly connected to the other side of the outer wall of the fluted disc, a first bevel gear is fixedly connected to the inside of the fluted disc, a fixing column is fixedly connected to one end of the fixing column, a second bevel gear is rotatably connected to the inside of the fixing box and meshed with the first bevel gear, a third bevel gear is rotatably connected to the inside of the fixing box, the third bevel gear is rotatably connected to the outer wall of the fixing column, a second bevel gear is fixedly connected to the third outer wall of the bevel gear, and a supporting assembly is arranged on the outer wall of the mixing bin.
Further, the support assembly comprises a support, and the inner wall of the support is fixedly connected with the outer wall of the mixing bin.
Further, the lower surface of the mixing bin is fixedly connected with a base, a motor II is fixedly connected inside the base, and the output end of the motor II is fixedly connected with a driving belt.
Further, the outer wall of the transmission belt is fixedly connected with a semicircular gear, a straight rack is connected inside the base in a sliding mode, and the straight rack is meshed with the semicircular gear.
Further, the straight rack outer wall fixedly connected with slide, slide outer wall sliding connection is in inside the base.
Further, the bottom of the mixing bin is fixedly connected with a discharging pipe, and the lower side of the outer wall of the discharging pipe is fixedly connected inside the base.
Further, the inside fixedly connected with unloading pipe of base, the inside fixedly connected with conveying pipeline of unloading pipe, the conveying pipeline outer wall is provided with the valve, conveying pipeline one end fixedly connected with reaction storehouse.
Further, an annular heating pipe is fixedly connected inside the reaction bin, and a ventilation pipe is fixedly connected to the top of the reaction bin.
The utility model has the following beneficial effects:
1. According to the utility model, firstly, the motor drives the spur gear to rotate, then the fluted disc is driven to rotate, the scraping plate is driven to scrape the sticky materials on the inner wall of the mixing bin, the wall sticking prevention effect is achieved, meanwhile, the stirring rod is driven to stir the materials, meanwhile, the bevel gear is driven to rotate in the fixed box through the rotation of the fluted disc, and then the bevel gear II and the bevel gear III are driven to rotate, so that the stirring rod II and the stirring rod I rotate in opposite directions, the effect of increasing the stirring frequency is achieved, the problem of uneven quality of produced ethanol due to insufficient stirring is solved, and the effect of fully stirring cellulase and fermentation liquor to stabilize the ethanol production quality is achieved.
2. According to the utility model, firstly, the motor drives the transmission belt to rotate, so that semicircular gears on two sides simultaneously rotate, and the straight-tooth belt drives the sliding plate to reciprocate in the base, so that the through hole of the sliding plate repeatedly moves between the discharging pipe and the discharging pipe, the effect of full-automatic quantitative feeding is achieved, materials in the mixing bin are conveyed into the discharging pipe through the discharging pipe, the conveying effect is achieved, then conveyed into the reaction bin through the conveying pipe, the activity of yeast is improved through the annular heating pipe, the ventilation pipe provides sufficient oxygen for the yeast, and the effects of ensuring that the materials are conveyed into the next production step at uniform speed and quantity in full-automatic quantitative feeding are achieved, so that the difference between batches is reduced, and the quality of products is improved.
Drawings
FIG. 1 is a schematic main structure diagram of a high-efficiency cellulose ethanol synchronous saccharification and fermentation device provided by the utility model;
FIG. 2 is a schematic cross-sectional view of a mixing bin of the high-efficiency cellulose ethanol synchronous saccharification and fermentation device;
FIG. 3 is a schematic diagram of a fluted disc structure of a synchronous saccharification and fermentation device for high-efficiency cellulosic ethanol;
FIG. 4 is a schematic cross-sectional view of a base of a device for simultaneous saccharification and fermentation of cellulosic ethanol;
FIG. 5 is a schematic diagram of a skateboard structure of a high-efficiency cellulose ethanol synchronous saccharification and fermentation device according to the present utility model;
fig. 6 is a schematic cross-sectional view of a reaction chamber of the high-efficiency cellulose ethanol synchronous saccharification and fermentation device provided by the utility model.
Legend description:
1. Mixing bin 2, cover plate 3, motor one, 4, straight gear, 5, fluted disc 6, scraper 7, stirring rod one, 8, fixed column 9, fixed box 10, bevel gear one, 11, bevel gear two, 12, clamping plate rod two, 13, bracket, 14, base 15, motor two, 16, driving belt, 17, semicircular gear, 18, straight rack, 19, slide plate, 20, discharging pipe, 21, blanking pipe, 22, conveying pipe, 23, valve, 24, reaction bin 25, annular heating pipe, 26, ventilating pipe, 27, bevel gear three.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to figures 1-3, the embodiment of the utility model provides a high-efficiency cellulose ethanol synchronous saccharification and fermentation device, which comprises a mixing bin 1, wherein a cover plate 2 is arranged at the top of the mixing bin 1, a first motor 3 is fixedly connected inside the cover plate 2, a third gear 4 is fixedly connected to the output end of the first motor 3, a fluted disc 5 is rotatably connected inside the cover plate 2, the fluted disc 5 is meshed with the spur gear 4, one side of the outer wall of the fluted disc 5 is fixedly connected with a scraping plate 6, the outer wall of the scraping plate 6 is slidably connected to the inner wall of the mixing bin 1, the other side of the outer wall of the fluted disc 5 is fixedly connected with a stirring rod 7, a first bevel gear 10 is fixedly connected inside the fluted disc 5, a fixed column 8 is fixedly connected to the inner wall of the mixing bin 1, one end of the fixed column 8 is fixedly connected with a fixed box 9, a second bevel gear 11 is rotatably connected inside the fixed box 9, a third bevel gear 27 is rotatably connected with the second bevel gear 11 and meshed with the first bevel gear 10, the inner wall of the third bevel gear 27 is rotatably connected to the outer wall of the fixed box 9, a second bevel gear 12 is fixedly connected to the outer wall of the third 27, and a support assembly is arranged on the outer wall of the mixing bin 1;
Specifically, firstly, the output end of the motor I3 drives the spur gear 4 to rotate, the rotation of the spur gear 4 further drives the fluted disc 5 to rotate in the cover plate 2, the rotation of the fluted disc 5 drives the scraping plate 6 and the stirring rod I7 to rotate, so that a continuous transmission chain is formed, in the process, the scraping plate 6 is used for scraping the residual materials on the inner wall of the mixing bin 1, the stirring rod I7 is used for stirring the materials in the mixing bin 1, the materials are fully mixed, in addition, the rotation of the fluted disc 5 also drives the bevel gear I10 to rotate in the fixed box 9, the rotation of the bevel gear I10 drives the clamping plate II 12 to rotate through the transmission of the bevel gear II 11 and the bevel gear III 27, and it is worth noting that the rotation direction of the clamping plate II 12 is opposite to that of the stirring rod I7, so that the materials are more fully stirred.
Referring to fig. 1, the support assembly comprises a bracket 13, and the inner wall of the bracket 13 is fixedly connected with the outer wall of the mixing bin 1;
specifically, the effect of supporting and fixing the mixing chamber 1 can be realized through the bracket 13.
Referring to fig. 4 and 5, the lower surface of the mixing bin 1 is fixedly connected with a base 14, a motor II 15 is fixedly connected inside the base 14, the output end of the motor II 15 is fixedly connected with a driving belt 16, the outer wall of the driving belt 16 is fixedly connected with a semicircular gear 17, a straight rack 18 is slidably connected inside the base 14, the straight rack 18 is meshed with the semicircular gear 17, the outer wall of the straight rack 18 is fixedly connected with a sliding plate 19, the outer wall of the sliding plate 19 is slidably connected inside the base 14, the bottom of the mixing bin 1 is fixedly connected with a discharging pipe 20, the lower side of the outer wall of the discharging pipe 20 is fixedly connected inside the base 14, a discharging pipe 21 is fixedly connected inside the base 14, a conveying pipe 22 is fixedly connected inside the discharging pipe 21, a valve 23 is arranged on the outer wall of the conveying pipe 22, and one end of the conveying pipe 22 is fixedly connected with a reaction bin 24;
Specifically, the second motor 15 drives the driving belt 16 to rotate, so as to drive the semicircular gears 17 on two sides to synchronously rotate, the rotation of the semicircular gears 17 is not simply to drive other components, the purpose of the driving belt is to drive the rack 18 to reciprocate in the base 14, the process is like gear engagement, power is transmitted from the second motor 15 to the rack 18, the movement of the rack 18 also drives the slide plate 19 to move, through holes on the slide plate 19 repeatedly move between the discharging pipe 20 and the discharging pipe 21, like a conveying belt, the materials sent from the interior of the mixing bin 1 to the discharging pipe 20 are sent to the interior of the discharging pipe 21, and the materials are finally sent to the interior of the reaction bin 24, so that the process is beneficial to the cooperation of the second motor 15, the driving belt 16, the semicircular gears 17, the rack 18, the slide plate 19 and the conveying pipe 22, and the ordered conveying of the materials from the mixing bin 1 to the reaction bin 24 is realized.
Referring to fig. 6, an annular heating pipe 25 is fixedly connected to the inside of the reaction chamber 24, and a ventilation pipe 26 is fixedly connected to the top of the reaction chamber 24;
Specifically, the annular heating pipe 25 inside the reaction bin 24 plays a vital role in improving the activity of the yeast, the temperature in the reaction bin 24 can be accurately controlled through the annular heating pipe 25 to provide a proper growth environment for the yeast, the ventilation pipe 26 provides sufficient oxygen for the yeast to ensure that the yeast can breathe normally, thereby promoting the production of ethanol, and meanwhile, the ventilation pipe 26 can effectively exhaust the carbon dioxide and other gases in the reaction bin 24 to keep the gas circulation in the reaction bin 24, thereby providing a better growth environment for the yeast and achieving the effect of improving the quality of ethanol production.
Working principle: when the efficient cellulose ethanol synchronous saccharification and fermentation device is needed to be used, firstly, a motor I3 in a cover plate 2 is started, a spur gear 4 is driven to rotate through the output end of the motor I3, so that a fluted disc 5 is driven to rotate in the cover plate 2, then a scraping plate 6 and a stirring rod I7 are driven to rotate through the rotation of the fluted disc 5, materials remained on the inner wall of a mixing bin 1 are scraped through the scraping plate 6, then materials in the mixing bin 1 are stirred through the stirring rod I7, then a bevel gear 10 is driven to rotate in a fixed box 9 through the rotation of the fluted disc 5, so that a bevel gear III 27 is driven to rotate through a bevel gear II 11, a clamping plate rod II 12 is driven to rotate through the rotation of the bevel gear III 27, and the rotation of the clamping plate rod II 12 is opposite to the stirring rod I7 due to the driving of the bevel gear III 27, so as to fully stir the materials, then start the motor II 15 in the base 14, drive the driving belt 16 to rotate through the motor II 15, thereby drive the semicircular gears 17 on both sides to rotate simultaneously, and then promote the rack 18 to reciprocate in the base 14, then drive the slide 19 to move through the movement of the rack 18, make the through hole of the slide 19 be in between discharging pipe 20 and discharging pipe 21 and repeatedly move, thereby send the materials that mix the storehouse 1 inside to the discharging pipe 20 to the inside of discharging pipe 21, then send to the inside of reaction storehouse 24 through conveying pipe 22, then increase the activity of yeast through the annular heating pipe 25 in the reaction storehouse 24, accelerate the production of ethanol, finally provide sufficient oxygen for yeast through ventilation pipe 26, and achieve the effect of fermentation.
It should be noted that the foregoing description is only a preferred embodiment of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it should be understood that modifications, equivalents, improvements and modifications to the technical solution described in the foregoing embodiments may occur to those skilled in the art, and all modifications, equivalents, and improvements are intended to be included within the spirit and principle of the present utility model.
Claims (8)
1. The high-efficiency cellulose ethanol synchronous saccharification and fermentation device comprises a mixing bin (1), and is characterized in that a cover plate (2) is arranged at the top of the mixing bin (1), a first motor (3) is fixedly connected inside the cover plate (2), a spur gear (4) is fixedly connected with the output end of the first motor (3), a fluted disc (5) is rotatably connected inside the cover plate (2), the fluted disc (5) is meshed with the spur gear (4), a scraping plate (6) is fixedly connected to one side of the outer wall of the fluted disc (5), the outer wall of the scraping plate (6) is in sliding connection with the inner wall of the mixing bin (1), a stirring rod I (7) is fixedly connected to the other side of the outer wall of the fluted disc (5), a bevel gear I (10) is fixedly connected inside the fluted disc (5), a fixing post (8) is fixedly connected to the inner wall of the mixing bin (1), a fixing box (9) is fixedly connected to one end of the fixing post (8), a bevel gear II (11) is rotatably connected inside the fixing box (9) and meshed with the bevel gear II (11) and the bevel gear I (10), a bevel gear II (27) is rotatably connected to the bevel gear II (27), and the bevel gear II (27) is rotatably meshed with the bevel gear I (27), the outer wall of the bevel gear III (27) is fixedly connected with a clamping plate rod II (12), and the outer wall of the mixing bin (1) is provided with a supporting component.
2. The efficient cellulose ethanol synchronous saccharification and fermentation device of claim 1, wherein the support assembly comprises a support (13), and the inner wall of the support (13) is fixedly connected with the outer wall of the mixing bin (1).
3. The efficient cellulose ethanol synchronous saccharification and fermentation device of claim 2 is characterized in that a base (14) is fixedly connected to the lower surface of the mixing bin (1), a motor II (15) is fixedly connected to the inside of the base (14), and a driving belt (16) is fixedly connected to the output end of the motor II (15).
4. The efficient cellulose ethanol synchronous saccharification and fermentation device according to claim 3, wherein a semicircular gear (17) is fixedly connected to the outer wall of the transmission belt (16), a straight rack (18) is connected inside the base (14) in a sliding mode, and the straight rack (18) is meshed with the semicircular gear (17).
5. The efficient cellulose ethanol synchronous saccharification and fermentation device of claim 4, wherein a sliding plate (19) is fixedly connected to the outer wall of the straight rack (18), and the outer wall of the sliding plate (19) is slidably connected to the inside of the base (14).
6. The efficient cellulose ethanol synchronous saccharification and fermentation device of claim 5, wherein a discharging pipe (20) is fixedly connected to the bottom of the mixing bin (1), and the lower side of the outer wall of the discharging pipe (20) is fixedly connected to the inside of the base (14).
7. The efficient cellulose ethanol synchronous saccharification and fermentation device of claim 6, wherein a blanking pipe (21) is fixedly connected inside the base (14), a conveying pipe (22) is fixedly connected inside the blanking pipe (21), a valve (23) is arranged on the outer wall of the conveying pipe (22), and a reaction bin (24) is fixedly connected at one end of the conveying pipe (22).
8. The efficient cellulose ethanol synchronous saccharification and fermentation device of claim 7, wherein an annular heating pipe (25) is fixedly connected inside the reaction bin (24), and a ventilation pipe (26) is fixedly connected to the top of the reaction bin (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420116067.0U CN222331883U (en) | 2024-01-16 | 2024-01-16 | High-efficient cellulose ethanol synchronous saccharification fermenting installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420116067.0U CN222331883U (en) | 2024-01-16 | 2024-01-16 | High-efficient cellulose ethanol synchronous saccharification fermenting installation |
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| Publication Number | Publication Date |
|---|---|
| CN222331883U true CN222331883U (en) | 2025-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420116067.0U Active CN222331883U (en) | 2024-01-16 | 2024-01-16 | High-efficient cellulose ethanol synchronous saccharification fermenting installation |
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| Country | Link |
|---|---|
| CN (1) | CN222331883U (en) |
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- 2024-01-16 CN CN202420116067.0U patent/CN222331883U/en active Active
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