CN220229993U - Fermentation lees drying waste heat utilization system - Google Patents
Fermentation lees drying waste heat utilization system Download PDFInfo
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- CN220229993U CN220229993U CN202321829758.7U CN202321829758U CN220229993U CN 220229993 U CN220229993 U CN 220229993U CN 202321829758 U CN202321829758 U CN 202321829758U CN 220229993 U CN220229993 U CN 220229993U
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- 238000000855 fermentation Methods 0.000 title claims abstract description 52
- 230000004151 fermentation Effects 0.000 title claims abstract description 52
- 238000001035 drying Methods 0.000 title claims abstract description 25
- 239000002918 waste heat Substances 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000000463 material Substances 0.000 claims abstract description 47
- 238000005406 washing Methods 0.000 claims abstract description 40
- 239000000428 dust Substances 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims abstract description 17
- 238000001704 evaporation Methods 0.000 claims description 16
- 230000008020 evaporation Effects 0.000 claims description 16
- 239000002002 slurry Substances 0.000 claims description 10
- 238000004064 recycling Methods 0.000 claims description 5
- 230000001502 supplementing effect Effects 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- 241001465754 Metazoa Species 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 238000011081 inoculation Methods 0.000 description 4
- 230000000813 microbial effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241001274961 Rubus repens Species 0.000 description 1
- 238000010564 aerobic fermentation Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 235000019621 digestibility Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007413 intestinal health Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 235000019629 palatability Nutrition 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a fermentation vinasse drying waste heat utilization system, wherein fermentation vinasse enters a tube bundle dryer after being subjected to dry-wet mixing, a discharge port of the tube bundle dryer is connected with a return conveyor and an inlet of the dry material conveyor, and an outlet of the return conveyor is also connected with an inlet of a mixer; the tail gas outlet of the tube bundle is connected with the inlet of the cyclone dust collector, the top outlet of the cyclone dust collector is connected with the air inlet of the washing tower through a draught fan, and the top gas outlet of the washing tower is sequentially connected with the hot sides of the secondary air preheater and the primary air preheater; the condensed water outlet of the tube bundle dryer is connected with the inlet of a condensed water flash tank, and the outlet of the condensed water flash tank is connected with the hot side inlet of the three-stage air preheater through a medium-temperature condensed water pump; natural wind sent by the blower sequentially passes through the primary air preheater, the secondary air preheater and the tertiary air preheater to be preheated and then enters the wind sending chamber below the rotary arm fermentation machine. The system preheats the air of the fermentation machine by utilizing the waste heat, and reduces the emission of pollutants.
Description
Technical Field
The utility model relates to a waste heat utilization system for drying fermented grains, and belongs to the technical field of fermentation of the fermented grains.
Background
The distillers ' grains are waste when white spirit is produced by a white spirit factory, the water content of the distillers ' grains is 62-65%, the distillers ' grains cannot be preserved, and the distillers ' grains contain less components which can be digested by animals, so that the distillers ' grains are difficult to treat, and the distillers ' grains are generally sent to surrounding farmers for being used as organic fertilizer after being piled and fermented, so that the distillers ' grains lack economic value.
However, after microbial fermentation, microbial metabolites can be produced, the digestibility of animals can be improved, the intestinal health condition of the animals can be improved, the palatability of the animals can be improved, substances which are beneficial to the growth of the animals can be produced, and the microbial feed is an inexpensive raw material for producing microbial feeds.
The traditional distillers' grains fermentation production process is complex, discontinuous in production, large in equipment investment, incapable of automatic production and high in labor intensity; the open operation is used, and the production environment is poor in sanitation condition. The production cost of the fermented lees is increased.
The Chinese patent publication No. CN215638360U discloses a distiller's grain fermentation drying system, which comprises an inoculation mixer for mixing distiller's grains with strains, wherein an outlet of the inoculation mixer is connected with a feed inlet of a multi-layer aerobic continuous fermentation machine through a conveyor, air inlets of all layers of the multi-layer aerobic continuous fermentation machine are respectively connected with air outlets of all blowers, a discharge outlet of the multi-layer aerobic continuous fermentation machine is connected with a feed inlet of a parallel-flow active state drying tower through a fermentation material conveyor, a discharge outlet of the parallel-flow active state drying tower is connected with an inlet of a lifting machine, an outlet of the lifting machine is connected with a feed inlet of the counter-flow active state drying tower, and a discharge outlet of the counter-flow active state drying tower is connected with a distiller's grain dry fermentation chute. The outlet of the parallel-flow drying main air outlet pipe is connected with the hot side inlet of the primary air heat exchanger through a saxophone and a draught fan, and the cold side outlet of the primary air heat exchanger is connected with the air inlet of the natural gas furnace and the low-temperature hot air inlet of the primary air distributor through a primary hot air pipe. The technical proposal is that the distillers' grains are directly dried, the one-step fermentation is not needed, and the use value of the product is low; the multistage fluidization drying is adopted, the air consumption is large, the steam content in the tail gas is low, the enthalpy is low, and the tail gas waste heat utilization efficiency is low.
Disclosure of Invention
The utility model aims to overcome the problems in the prior art and provide a fermentation vinasse drying waste heat utilization system which utilizes waste heat generated by fermentation vinasse drying to preheat air of a fermentation machine, realizes cascade utilization of the waste heat and reduces emission of pollutants.
In order to solve the technical problems, the utility model provides a fermentation vinasse drying waste heat utilization system, which comprises a rotary arm fermentation machine, wherein a discharge hole of the rotary arm fermentation machine is connected with an inlet of a fermentation discharge conveyor, fermentation vinasse output by the fermentation discharge conveyor enters a mixer, an outlet of the mixer is connected with a feed inlet of a tube bundle dryer, a discharge hole of the tube bundle dryer is connected with a return conveyor and an inlet of a drier conveyor, and an outlet at the upper end of the return conveyor is also connected with the inlet of the mixer;
the tube bundle tail gas outlet of the tube bundle dryer is connected with the inlet of the cyclone dust collector, the top outlet of the cyclone dust collector is connected with the air inlet of the washing tower through a draught fan, the top air outlet of the washing tower is connected with the hot side inlet of the secondary air preheater, the hot side outlet of the secondary air preheater is connected with the hot side inlet of the primary air preheater, and the hot side outlet of the primary air preheater is connected with an exhaust gas treatment facility;
the condensate outlet of the tube bundle dryer is connected with the inlet of a condensate flash tank through a high-temperature condensate pipe, the bottom outlet of the condensate flash tank is connected with the inlet of a medium-temperature condensate pump, and the outlet of the medium-temperature condensate pump is connected with the hot side inlet of the three-stage air preheater;
natural wind sent by the blower sequentially passes through the primary air preheater, the secondary air preheater and the tertiary air preheater to be preheated and then enters the wind sending chamber below the rotary arm fermentation machine.
As an improvement of the utility model, a secondary steam pipe at the top of the condensate flash tank is used as a heat supply pipeline of the percolate evaporation concentration unit.
As a further improvement of the utility model, the bottom outlet of the washing tower is connected with a washing water tank, the bottom outlet of the washing water tank is connected with the inlet of a washing circulating pump, and the outlet of the washing circulating pump is connected with a circulating spray port at the upper part of the washing tower; and the outlet of the medium-temperature condensate pump is also connected with the water supplementing port of the washing water tank.
As a further development of the utility model, the outlet of the washing circulation pump is also connected to a percolate collection tank of the percolate evaporation and concentration device.
As a further improvement of the utility model, the hot side outlet of the three-stage air preheater is connected with the hot side inlet of the percolate preheater, the hot side outlet of the percolate preheater is connected with the inlet of the low-temperature condensate water tank, the outlet of the low-temperature condensate water tank is connected with the inlet of the low-temperature condensate water pump, and the outlet of the low-temperature condensate water pump is connected with the condensate water recycling system.
As a further improvement of the utility model, the concentrated slurry of the percolate evaporation and concentration device is output through a concentrated slurry pipe, and the outlet of the concentrated slurry pipe is connected with the inlet of the mixer.
Compared with the prior art, the utility model has the following beneficial effects: after the tail gas of the high-temperature tube bundle generated by drying the fermented vinasse is subjected to two-stage dust removal through the cyclone dust collector and the washing tower, the cleanliness is greatly improved, the high-temperature tail gas after hot water circulation washing carries out two-stage preheating on the fermented air, the fermentation speed is improved, and the moisture content of the fermented vinasse is reduced. The evaporation and concentration of secondary steam and percolate generated after the tube bundle condensate water is flashed improves a heat source, the flashed condensate water carries out third-stage heating on the fermentation hot air and preheats the percolate, heat is fully recovered, and the energy consumption of a system is reduced.
Drawings
The utility model will now be described in further detail with reference to the drawings and the detailed description, which are provided for reference and illustration only and are not intended to limit the utility model.
FIG. 1 is a flow chart of a distiller's grain drying waste heat utilization system of the present utility model;
in the figure: 1. a rotary arm fermentation machine; 2. a fermentation discharge conveyor; 3. a mixer; 4. a tube bundle dryer; 5. a return conveyor; 6. a dry material conveyor; 7. a cyclone dust collector; 8. a washing tower; 9. a washing water tank; 10. a washing circulation pump; 11. a blower; 12. a primary air preheater; 13. a secondary air preheater; 14. a three-stage air preheater; 15. an exhaust fan; 16. an exhaust gas treatment facility; 17. a high temperature condensate pipe; 18. a condensed water flash tank; 19. a medium temperature condensate pump; 20. a medium temperature condensate pipe; 21. a percolate preheater; 22. a low temperature condensate water tank; 23. a low temperature condensate pump; 24. a condensed water recycling system; 25. a percolate evaporation concentration device; 26. a thick slurry pipe; 27. a steam generating pipe.
Detailed Description
In the following description of the present utility model, the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not mean that the device must have a specific orientation.
The utility model is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the utility model easy to understand.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
As shown in fig. 1, the fermenting distiller's grain drying waste heat utilization system of the utility model comprises a rotary arm fermenting machine 1, a fermenting discharging conveyor 2, a tube bundle dryer 4 and a drier conveyor 6. When the rotary arm fermentation machine 1 distributes materials, the material distribution auger and the material discharge auger are lifted to high positions, and the rotary arm drives the material distribution auger, the material discharge auger and the material turning auger to rotate around the central axis. The wet vinasse from the feeding chute falls in the central area of the material bed, and when the wet vinasse reaches a high position, the wet vinasse is distributed to the peripheral area by the distribution auger, so that the top of the material layer is ensured to be flat. And when the material layer reaches the lower part of the discharging auger, the material distribution is completed.
Fresh air sent by the blower 11 is preheated by the primary air preheater 12, the secondary air preheater 13 and the tertiary air preheater 14, then the temperature is increased, and the fresh air is sent to the lower part of the material bed of the rotary arm fermentation machine 1 and upwards passes through the material layer to realize aerobic fermentation. The fermentation tail gas is discharged from an upper exhaust outlet of the rotary arm fermentation machine 1 and is sent to an exhaust treatment facility 16 for treatment by an exhaust fan 15. In the fermentation process, the rotating arm continuously rotates, and each turning auger rotates to turn the material along the height direction of the material layer, so that uniform fermentation is realized.
After the preset fermentation time is reached, the discharging auger is started, the material is fed into the central cylinder along the radial direction while the rotary arm rotates, then discharged from the lower port of the central cylinder, conveyed to the drying section by the fermentation discharging conveyor 2, and the top of the material layer is lowered by 15cm and then discharged.
Then the rotary arm fermentation machine 1 is fed again, and the material distribution auger is started to uniformly distribute materials on the top of the material layer in the next round along the radial direction until reaching the original preset material layer height; and after the material is distributed, each material turning auger rotates and simultaneously rotates along with the rotating arm, and turns the material along the height direction of the material layer, so that the fermented material and the newly-entered material are uniformly stirred, the automatic inoculation of the new material is realized, and the fermentation is continued. Besides the need of inoculating composite strain in the primary production, the new material is continuously inoculated by adopting the fermented vinasse which is fermented and matured in the fermentation machine, and the strain is not needed to be added, so that the strain cost is saved.
After the next round of preset fermentation time is reached, the discharging auger is started again, the top of the material layer is stopped after being lowered by 15cm again, and the material enters the next round of feeding, stirring inoculation, fermentation and discharging, and the circulation is performed.
The fermented vinasse sent out by the fermentation discharging conveyor 2 enters the mixer 3, part of the dried vinasse returns to the mixer 3, thick slurry from the percolate evaporation concentration unit also enters the mixer 3, after the three materials are uniformly mixed, the mixture is sent into the tube bundle dryer 4 by the feeding auger to be dried, raw steam enters each tube bundle to heat and dry the vinasse, one part of the dried vinasse is sent back to the mixer 3 by the returning conveyor 5, and the other part of the dried vinasse is sent out by the drying conveyor 6.
The bottom discharge port of the rotary arm fermentation machine 1 is connected with the inlet of the fermentation discharge conveyor 2, the inlet of the tube bundle dryer 4 is matched with the mixer 3, and the fermented vinasse enters the mixer 3. The outlet of the mixer 3 is correspondingly connected with a feeding auger of the tube bundle dryer 4, the discharge port of the tube bundle dryer 4 is respectively connected with inlets of the returning charge conveyor 5 and the dry charge conveyor 6 through a distributing valve, and the outlet at the upper end of the returning charge conveyor 5 is also connected with the inlet of the mixer 3. The finished fermented lees are sent out by a drier conveyor 6.
The tube bundle tail gas outlets at the top of the tube bundle dryer 4 are respectively connected with inlets of the cyclone dust collectors 7, and exhaust outlets at the top of the cyclone dust collectors 7 are connected with an air inlet at the lower part of the washing tower 8 through an induced draft fan.
Tube bundle tail gas generated in the tube bundle drying process is discharged from a top exhaust hood, enters a cyclone dust collector 7 for centrifugal separation, and the separated vinasse powder falls into a return conveyor 5 and enters a mixer 3 along with return.
The steam rotary joint at the discharge end of the tube bundle dryer 4 is connected with a raw steam pipe 27, the condensed water rotary joint at the feed end of the tube bundle dryer 4 is connected with a high-temperature condensed water pipe 17 through a steam trap, the outlet of the high-temperature condensed water pipe 17 is connected with the inlet of a condensed water flash tank 18, and the bottom water outlet of the condensed water flash tank 18 is connected with the inlet of a medium-temperature condensed water pump 19. The flash vapor exiting the top of condensate flash tank 18 serves as the heat source for percolate evaporation and concentration device 25.
The top cover of the rotary arm fermentation machine 1 is easy to generate condensation dew, and dew drops into a material layer to influence the temperature and humidity of materials at the top and cause mixed bacteria pollution. The low-temperature condensate water pump 23 pumps out low-temperature condensate water in the low-temperature condensate water tank 22, and sends the low-temperature condensate water to the top cover of the rotary arm fermentation machine 1 for heat tracing circulation, so that the top cover is prevented from dewing. The circulating condensate water is returned to the low-temperature condensate water tank 22, and the redundant low-temperature condensate water is returned to the condensate water recycling system 24 and can be used as boiler makeup water.
The upper end of the rotary arm fermentation machine 1 is provided with a rotary arm extending along a radius, the front side edge of the rotary arm relative to the rotary advancing direction of the material bed is provided with a lifting discharging auger, and the discharging auger feeds materials at the periphery to the central cylinder along the radius.
A lifting material distributing auger is arranged below the axis of the rotating arm, and the material distributing auger distributes the material from the center of the material bed to the outside Zhou Shusong along the radius.
The rear side edge of the rotating arm is provided with a plurality of turning augers which extend downwards side by side, and each turning auger rotates around a vertical axis to realize turning of the material layer in the thickness direction.
After the high-temperature tube bundle tail gas discharged from the top of the tube bundle dryer 4 enters the cyclone dust collector 7 for dust removal, hot air discharged from the top of the cyclone dust collector 7 enters the washing tower 8 for washing, hot tail gas discharged from the washing tower 8 enters the hot side inlet of the secondary air preheater 13, and after being discharged from the hot side outlet of the secondary air preheater 13, the hot tail gas enters the hot side inlet of the primary air preheater 12 for two-stage preheating of fresh air. After exiting the hot side outlet of the primary air preheater 12, it is directed by an exhaust fan to an exhaust treatment facility 16 for treatment.
The raw steam is released in the tube bundle dryer 4 to become high-temperature condensed water, and the condensed water enters a condensed water flash tank 18 for flash evaporation. In order to prevent the cyclone dust collector 7 from generating condensation due to temperature drop, a heat tracing steam pipe is wound around the periphery of the cyclone dust collector 7, an inlet of the heat tracing steam pipe is connected with the raw steam pipe 27, and high-temperature condensed water discharged by the heat tracing steam pipe also enters the condensed water flash tank 18 to be flashed due to pressure drop. The secondary steam generated by flash evaporation is used as a heat source of the percolate evaporation concentration unit. The concentrated slurry produced by the percolate evaporation and concentration device is sent to the inlet of the mixer through a concentrated slurry pipe 26 and is doped with fermented vinasse, so that the whole recovery is realized.
The middle temperature condensate water pipe 20 at the outlet of the middle temperature condensate water pump 19 is connected with the hot side inlet of the three-stage air preheater 14, and condensate water discharged from the hot side outlet of the three-stage air preheater 14 enters the percolate preheater 21 to preheat the vinasse percolate and then enters the low temperature condensate water tank 22 to be collected.
The medium-temperature condensate water pump 19 sends out medium-temperature condensate water and part of the medium-temperature condensate water enters the washing water tank 9 to be used as high-temperature water supplementing, so that the evaporation capacity of the medium-temperature condensate water is compensated, and the circulating water temperature of the washing tower 8 is increased.
The outlet of the low-temperature condensate water tank 22 is connected with the inlet of the low-temperature condensate water pump 23, and the outlet of the low-temperature condensate water pump 23 is connected with the condensate water recycling system 24.
The high-temperature circulating water in the washing water tank 9 is pumped by the washing circulating pump 10, sent to the upper part of the washing tower 8 for circulating spraying, and the spraying liquid falls down and returns to the washing water tank 9 for circulating. Some of the high-temperature washing water sent from the washing circulation pump 10 is sent to the percolate collection tank of the percolate evaporation and concentration device 25 as its make-up water or washing water.
The foregoing description of the preferred embodiments of the present utility model illustrates and describes the basic principles, main features and advantages of the present utility model, and is not intended to limit the scope of the present utility model, as it should be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments. In addition to the embodiments described above, other embodiments of the utility model are possible without departing from the spirit and scope of the utility model. The utility model also has various changes and improvements, and all technical schemes formed by adopting equivalent substitution or equivalent transformation fall within the protection scope of the utility model. The scope of the utility model is defined by the appended claims and equivalents thereof. The technical features of the present utility model that are not described may be implemented by or using the prior art, and are not described herein.
Claims (6)
1. The utility model provides a dry waste heat utilization system of fermentation lees, includes rocking arm fermentation machine, its characterized in that: the material outlet of the tube bundle dryer is connected with the inlets of the material returning conveyor and the dry material conveyor, and the upper end outlet of the material returning conveyor is also connected with the inlet of the mixer;
the tube bundle tail gas outlet of the tube bundle dryer is connected with the inlet of the cyclone dust collector, the top outlet of the cyclone dust collector is connected with the air inlet of the washing tower through a draught fan, the top air outlet of the washing tower is connected with the hot side inlet of the secondary air preheater, the hot side outlet of the secondary air preheater is connected with the hot side inlet of the primary air preheater, and the hot side outlet of the primary air preheater is connected with an exhaust gas treatment facility;
the condensate outlet of the tube bundle dryer is connected with the inlet of a condensate flash tank through a high-temperature condensate pipe, the bottom outlet of the condensate flash tank is connected with the inlet of a medium-temperature condensate pump, and the outlet of the medium-temperature condensate pump is connected with the hot side inlet of the three-stage air preheater;
natural wind sent by the blower sequentially passes through the primary air preheater, the secondary air preheater and the tertiary air preheater to be preheated and then enters the wind sending chamber below the rotary arm fermentation machine.
2. The fermented distillers dried grains drying waste heat utilization system of claim 1, wherein: and a secondary steam pipe at the top of the condensate flash tank is used as a heat supply pipeline of the percolate evaporation concentration unit.
3. The fermented distillers dried grains drying waste heat utilization system of claim 1, wherein: the bottom outlet of the washing tower is connected with a washing water tank, the bottom outlet of the washing water tank is connected with the inlet of a washing circulating pump, and the outlet of the washing circulating pump is connected with a circulating spray port at the upper part of the washing tower; and the outlet of the medium-temperature condensate pump is also connected with the water supplementing port of the washing water tank.
4. The fermented grain drying waste heat utilization system according to claim 3, wherein: and the outlet of the washing circulating pump is also connected with a percolate collecting tank of the percolate evaporation concentration device.
5. The fermented distillers dried grains drying waste heat utilization system of claim 1, wherein: the hot side outlet of the three-stage air preheater is connected with the hot side inlet of the percolate preheater, the hot side outlet of the percolate preheater is connected with the inlet of the low-temperature condensate water tank, the outlet of the low-temperature condensate water tank is connected with the inlet of the low-temperature condensate water pump, and the outlet of the low-temperature condensate water pump is connected with the condensate water recycling system.
6. The distillers dried grains fermented drying waste heat utilization system of claim 4, wherein: the concentrated slurry of the percolate evaporation concentration device is output through a concentrated slurry pipe, and the outlet of the concentrated slurry pipe is connected with the inlet of the mixer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321829758.7U CN220229993U (en) | 2023-07-11 | 2023-07-11 | Fermentation lees drying waste heat utilization system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321829758.7U CN220229993U (en) | 2023-07-11 | 2023-07-11 | Fermentation lees drying waste heat utilization system |
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| Publication Number | Publication Date |
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| CN220229993U true CN220229993U (en) | 2023-12-22 |
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| CN202321829758.7U Active CN220229993U (en) | 2023-07-11 | 2023-07-11 | Fermentation lees drying waste heat utilization system |
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| CN (1) | CN220229993U (en) |
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2023
- 2023-07-11 CN CN202321829758.7U patent/CN220229993U/en active Active
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