CN104312911A - Stirring device used for dry anaerobic fermentation - Google Patents
Stirring device used for dry anaerobic fermentation Download PDFInfo
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- CN104312911A CN104312911A CN201410649573.7A CN201410649573A CN104312911A CN 104312911 A CN104312911 A CN 104312911A CN 201410649573 A CN201410649573 A CN 201410649573A CN 104312911 A CN104312911 A CN 104312911A
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- 238000003756 stirring Methods 0.000 title claims abstract description 124
- 238000000855 fermentation Methods 0.000 title claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 47
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 5
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000013019 agitation Methods 0.000 claims 1
- 238000002156 mixing Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000012546 transfer Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 230000029087 digestion Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 230000004151 fermentation Effects 0.000 description 3
- 238000010907 mechanical stirring Methods 0.000 description 3
- 239000010815 organic waste Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000012163 sequencing technique Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- LYKJEJVAXSGWAJ-UHFFFAOYSA-N compactone Natural products CC1(C)CCCC2(C)C1CC(=O)C3(O)CC(C)(CCC23)C=C LYKJEJVAXSGWAJ-UHFFFAOYSA-N 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/36—Means for collection or storage of gas; Gas holders
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
- C12M27/02—Stirrer or mobile mixing elements
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Zoology (AREA)
- Genetics & Genomics (AREA)
- Biomedical Technology (AREA)
- Microbiology (AREA)
- Biotechnology (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Sustainable Development (AREA)
- Molecular Biology (AREA)
- Clinical Laboratory Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The invention discloses a stirring device used for dry anaerobic fermentation, and belongs to the field of environmental protection equipment. The device comprises a stirring shaft, a drive device and a plurality of T-shaped blades, wherein two ends of the stirring shaft are arranged in a reaction pool through a bearing assembly, the drive device is connected with the stirring shaft and is used for driving the stirring shaft to rotate, and each T-shaped blade is spirally and fixedly arranged on the stirring shaft at a constant angle in the axial direction of the stirring shaft. By spirally and fixedly arranging the plurality of T-shaped blades on the stirring shaft at the constant angle in the axial direction of the stirring shaft, the stirring device can improve a material stirring and mixing effect in axial and radial directions, and is convenient for material output. The stirring device is simple in structure and convenient to manufacture, maintain and overhaul.
Description
Technical Field
The invention relates to the field of environment-friendly equipment, in particular to a stirring device for dry anaerobic fermentation.
Background
In terms of the current treatment and disposal process of organic wastes at home and abroad, anaerobic fermentation is an ideal process, and dry anaerobic fermentation is rapidly developed at home and abroad in recent years due to the advantages of high organic load, low investment, low energy consumption and the like. The method is divided according to the material inlet and outlet modes, the dry anaerobic fermentation has two process modes of continuous and sequencing batch, the reactor of the sequencing batch process is mainly garage type, and is mainly used for organic wastes with solid content of more than 25 percent, large material particle size distribution range and good permeability, and the continuous process is mainly used for organic wastes with solid content of 15-25 percent, viscous materials and poor permeability. For continuous dry fermentation processes, the reactor is in both vertical and horizontal form. As is known to all, whether the mass transfer of materials in the anaerobic reactor is uniform or not is one of the crucial factors related to the operation effect of the whole system, and the vertical reactor has higher difficulty in realizing the homogenization of the materials, so that the horizontal type is mainly used as the reactor for continuous dry anaerobic fermentation. At present, the material stirring in the horizontal dry anaerobic fermentation reactor generally adopts pneumatic stirring and mechanical stirring, the pneumatic stirring is to pressurize the methane generated by the system and then to blow the methane into the reactor in a pulse form, the stirring and mixing of the material are completed by the airflow impact force of the compressed gas, the energy consumption is high, scum is easily generated in the reactor, and the methane gas is not smoothly discharged, in addition, because the air blowing is intermittent operation, the air inlet is easy to be blocked, and the system cannot normally operate, therefore, the stirring mode is less adopted in the practical engineering, most of the stirring modes mainly adopt mechanical stirring, the common blades for mechanical stirring of the dry anaerobic reactor are mostly arranged in helical lines with equal intervals of helical bands and multiple blades, and the helical bands are not only high in processing difficulty and high in manufacturing cost, but also are limited by the material, and the stirrer cannot be used in large-scale engineering, the stirrer with the multiple blades arranged in an equidistant spiral line has the defects of unsatisfactory axial stirring and mixing effect, poor matching property with an anaerobic biological reaction process and the like, so that the digestion and degradation rate of organic matters is low.
Disclosure of Invention
Based on the problems in the prior art, the invention provides the stirring device for dry anaerobic fermentation, which can ensure the axial and radial mixing and stirring uniformity of materials, and is convenient to manufacture, operate and maintain.
In order to solve the above technical problems, the present invention provides a stirring apparatus for dry anaerobic fermentation, comprising:
the two ends of the stirring shaft are arranged in the reactor through bearing assemblies;
the driving device is connected with the stirring shaft and drives the stirring shaft to rotate;
and each T-shaped blade is fixedly arranged on the stirring shaft in a spiral shape at a fixed angle along the axial direction of the stirring shaft.
The invention has the beneficial effects that: through being a plurality of T type paddles of heliciform fixed arrangement with fixed angle at the axial of (mixing) shaft for the material improves the stirring and mixes the effect under this agitating unit axial plug flow and radial stirring effect, and the ejection of compact of the material of being convenient for. The stirring device has simple structure and is convenient to manufacture, maintain and overhaul.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a schematic view of a stirring apparatus provided in an embodiment of the present invention;
FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;
fig. 3 is a side view of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 shows a stirring apparatus for dry anaerobic fermentation according to an embodiment of the present invention, which is a stirring apparatus with high uniformity of mixed materials and convenient manufacturing and maintenance, and comprises:
the stirring shaft is fixed on the support through the bearing seat, and then the stirring shaft is fixed on the wall of the reactor through the connection of the support and an embedded part embedded in the wall of the reactor to complete the fixation of the stirring shaft;
the driving device is connected with the stirring shaft and drives the stirring shaft to rotate; preferably, the rotation speed of the stirring shaft driven by the driving device is as follows: the rotating speed is 0.5-20r/min, and a driving device generally adopts a motor.
And each T-shaped blade is fixedly arranged on the stirring shaft in a spiral shape at a fixed angle along the axis direction of the stirring shaft. Preferably, each T-shaped blade paddle rod is fixedly arranged on the stirring shaft along the direction vertical to the axis of the stirring shaft, and the blade body at the upper end of each T-shaped blade forms an angle of 45 degrees with the paddle rod and is kept in the same plane with the axis of the stirring shaft.
In the stirring device, each T-shaped blade has the structure: a paddle shaft and a paddle body; wherein, the paddle body is transversely and fixedly arranged at the end part of the paddle rod and forms a T-shaped paddle with the paddle rod. Preferably, each T-shaped blade is made of stainless steel materials or carbon steel materials for strengthening corrosion resistance. The corrosion resistance of the T-shaped blade can be improved, and in order to improve the corrosion resistance of the device, the corrosion resistance of the T-shaped blade is further as follows: the stirring shaft, the blades and the device which is in direct contact with the materials can be made of stainless steel materials or carbon steel materials to enhance corrosion resistance.
For improving the heat transfer effect, above-mentioned each T type paddle all can adopt channel-section steel, square steel, I-steel and angle steel to make, can increase the heat exchange area of paddle and material like this, improves heat exchange rate, in addition, because (mixing) shaft and paddle exist always and rotate in the developments, the material is difficult to bond or attach to on it, therefore this kind of heating methods can not reduce heat exchange efficiency along with the increase of operating time like the coil pipe heat transfer mode.
Among the above-mentioned agitating unit, each T type paddle is the heliciform along the axial of (mixing) shaft and fixes the arrangement including on the (mixing) shaft with fixed angle: the distance between the T-shaped blades on the stirring shaft at the side of the reactor feeding end is smaller than the distance between the T-shaped blades on the stirring shaft at the side of the reactor discharging end. Specifically, the distance between the T-shaped blades on the stirring shaft (generally 1/3 of the total length of the blades) at the side of the feed end of the reactor, which occupies one third of the total length of the stirring shaft, is smaller than the distance between the T-shaped blades on the stirring shaft (generally 1/2 of the total length of the blades) at the side of the discharge end of the reactor, which occupies the remaining length (the remaining two thirds).
Set up the heliciform and arrange T type paddle and can improve the axial and radial mixing stirring degree of consistency of material, can also produce the plug flow effect to the material like this simultaneously, can realize the removal to the material. Especially, the interval between the T type paddle that makes on the (mixing) shaft that is in reactor feed end one side account for (mixing) shaft total length one third is less than this kind of the mode of setting up of the interval between the T type paddle on the (mixing) shaft that is in the surplus length (remaining two-thirds length) of reactor discharge end one side (T type paddle is along the axial density degree subregion of (mixing) shaft promptly), make at the stirring in-process, under the effect that the (mixing) shaft drove T type paddle, the material is moved to ejection of compact one end from reactor feed end, realize first-in first-out, the short current has been avoided, help the ejection of compact, reduce discharging device's ejection of compact consumption. In addition, the mode that the T-shaped blades are arranged along the axial density degree of the stirring shaft in a partitioning mode can enable the stirring strength to be matched with the requirement of the anaerobic biological reaction process, and the purpose that the proper material mixing state is given according to the requirement of the reaction can be achieved.
Preferably, the stirring shaft in the stirring device is of a hollow structure and can be made of hollow pipes, and two ends of the stirring shaft are connected with the hot water circulating pipe. Like this the (mixing) shaft has formed the heater with each T type paddle rather than being connected, for improving the heat transfer effect, it is preferred, above-mentioned each T type paddle all can adopt channel-section steel, square steel, I-steel and angle steel to make, can increase the heat exchange area of paddle and material like this, improve heat exchange rate, in addition, because (mixing) shaft and paddle exist the developments rotation always, the material is difficult to bond or attach to on it, consequently this kind of heating method can not reduce heat exchange efficiency along with the increase of operating time like the coil pipe heat transfer mode. The heating function of the material changes the heating mode of the material in the reactor and simplifies the system composition.
When the stirring device works, the stirring shaft rotates at the rotating speed of 0.5-20r/min under the driving of the driving device, and materials are uniformly mixed and pushed towards the discharge hole through the radial stirring and the axial pushing flow of the blades. Meanwhile, the stirring shaft and the T-shaped blades on the stirring shaft form a heating system, and hot water in the stirring shaft transfers heat to the material through the shaft and the T-shaped blades in the process of passing through the stirring shaft, so that the temperature of the material is kept in the temperature range required by anaerobic reaction.
The stirring device of the present invention will be further described with reference to the following specific examples.
Referring to fig. 1, 2 and 3, fig. 1 is a schematic view showing an overall structure of a stirring apparatus according to the present invention, fig. 2 is a sectional view a-a of fig. 1, and fig. 3 is a side view of fig. 1.
The structure of the stirring device for dry anaerobic fermentation in this embodiment is shown in fig. 1, firstly, according to the specification of a reactor 3, a stirring shaft 2 of the stirring device is made of a hollow pipe; bearings are arranged at two ends of the stirring shaft 2, the stirring shaft 2 is fixed on a support 5 through a bearing seat, and then the stirring shaft 2 is fixed on the wall of the reactor 3 through the connection of the support 5 and an embedded part embedded on the wall of the reactor 3 to complete the fixation of the stirring shaft 2; the stirring shaft 2 and the wall of the reactor 3 are sealed by a sealing device 4; welding the manufactured T-shaped blades 6 (composed of a blade rod 61 and a blade body 62) on the stirring shaft 2 in a direction perpendicular to the axis, wherein the blades 6 are spirally arranged at a fixed angle along the axis, in addition, the total length of the stirring shaft 2 is 1/3 sections on one side close to the feeding end of the reactor 3, the blades 6 are arranged at the same interval and have smaller interval, and the total length of the stirring shaft 2 is 2/3 sections on one side close to the discharging end, the blades 6 are arranged at the same interval and have larger interval; the stirring shaft 2 is connected with a stirring shaft driving device 1 through a flange at the outer side of the feed end of the reactor 3; the two tail ends of the stirring shaft 2 are connected with a hot water circulating pipe through a sealing bearing 7. After the whole device is processed, sealing detection and single machine debugging are required.
When the material C1 enters the reactor 3, the stirring driving device 1 is started, the stirring shaft 2 drives the blades 6 to rotate at the rotating speed of 0.5-20r/min under the driving of the driving device 1, and the material C1 is uniformly mixed and pushed towards the discharge hole of the reactor 3 under the radial stirring and axial flow pushing actions of the blades 6. While stirring the materials, hot water B1 circularly flows in the stirring shaft 2, cold water B2 is at the outlet, and the hot water B2 exchanges heat with the materials through the stirring shaft 2 and the blades 6 to complete the heating of the materials, so that the temperature is maintained in a range suitable for anaerobic digestion reaction. Because the blades 6 are densely arranged in the front 1/3 section of the stirring shaft 2, when the materials enter the 1/3 section of the feeding side of the reactor 3, the stirring intensity is relatively high, and the materials are rapidly mixed, heated and inoculated and are in a hydrolysis acidification stage; further, the material C1 is slowly pushed towards the discharge end, and when entering the 2/3 section at the discharge side of the reactor 3, the material is in a methane production stage, the stirring intensity is relatively low, the fermentation is sufficient, and the high gas yield is realized. The material that completes the fermentation process is discharged from the other side of the reactor 3.
The stirring device of the embodiment of the invention adopts the T-shaped blades and is spirally arranged along the axial direction of the stirring shaft, so that the stirring uniformity is high, moreover, the stirring device has the heating and better plug flow functions by adopting the partitioned density arrangement of the hollow stirring shaft and the T-shaped blades, can be well suitable for dry anaerobic fermentation, the stirring device not only overcomes the defects of the existing stirrer, improves the axial and radial mixing and stirring effects of the materials, and the functions of pushing flow and heating the materials are also added, so that on one hand, the load of discharging equipment or a device of the reactor is reduced, the stirring intensity is effectively matched with the anaerobic digestion biological reaction process, the digestion efficiency and the gas production rate are improved, on the other hand, the heating mode of the materials in the reactor is changed, the heat exchange efficiency of the system is improved, and the arrangement of a heating coil is saved. The system is simplified, the operation and the maintenance are convenient, and the energy consumption of the system is reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A stirring device for dry anaerobic fermentation, comprising:
the two ends of the stirring shaft are arranged in the reaction tank through bearing assemblies;
the driving device is connected with the stirring shaft and drives the stirring shaft to rotate;
and each T-shaped blade is fixedly arranged on the stirring shaft in a spiral shape at a fixed angle along the axis direction of the stirring shaft.
2. The agitation device for dry anaerobic fermentation according to claim 1, wherein each of the T-shaped blades has a structure of:
a paddle shaft and a paddle body; wherein,
the paddle body is transversely and fixedly arranged at the end part of the paddle rod, and forms a T-shaped paddle with an angle of 45 degrees with the paddle rod.
3. The stirring device for dry anaerobic fermentation as claimed in claim 1 or 2, wherein each of the T-shaped blades is a T-shaped blade made of stainless steel material or corrosion-reinforced carbon steel material.
4. The stirring device for dry anaerobic fermentation according to claim 1, wherein said T-shaped blades are spirally and fixedly arranged on said stirring shaft at a fixed angle in the axial direction of said stirring shaft comprises:
the distance between the T-shaped blades on the stirring shaft at the side of the reactor feeding end is smaller than the distance between the T-shaped blades on the stirring shaft at the side of the reactor discharging end.
5. The stirring apparatus for dry anaerobic fermentation according to claim 4, wherein the pitch between the T-shaped blades on the stirring shaft at the side of the reactor feed end, which is one third of the total length of the stirring shaft, is smaller than the pitch between the T-shaped blades on the stirring shaft at the side of the reactor discharge end, which is the remaining length of the stirring shaft.
6. The stirring apparatus for dry anaerobic fermentation according to claim 1, 2, 4 or 5, wherein the stirring shaft is a hollow structure, both ends of which are connected with hot water circulating pipes.
7. The stirring device for dry anaerobic fermentation according to claim 1 or 4, wherein the blade body at the upper end of each T-shaped blade is maintained in a plane with the axis of the stirring shaft.
8. The stirring device for dry anaerobic fermentation according to claim 1, wherein the driving device drives the stirring shaft to rotate at a rotation speed of: the rotating speed is 0.5-20 r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410649573.7A CN104312911B (en) | 2014-11-14 | 2014-11-14 | Agitating device for dry-type anaerobic fermentation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410649573.7A CN104312911B (en) | 2014-11-14 | 2014-11-14 | Agitating device for dry-type anaerobic fermentation |
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| Publication Number | Publication Date |
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| CN104312911A true CN104312911A (en) | 2015-01-28 |
| CN104312911B CN104312911B (en) | 2016-06-29 |
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| CN201410649573.7A Active CN104312911B (en) | 2014-11-14 | 2014-11-14 | Agitating device for dry-type anaerobic fermentation |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105062871A (en) * | 2015-08-20 | 2015-11-18 | 北京中持绿色能源环境技术有限公司 | Heating system for dry anaerobic digestion |
| CN106810309A (en) * | 2016-12-28 | 2017-06-09 | 重庆市益丰生物肥有限公司 | Bio-fertilizer fermentation tonifying Qi transfusion agitating device |
| CN108823066A (en) * | 2018-07-09 | 2018-11-16 | 北京高能时代环境技术股份有限公司 | Reactor agitating device and tunnel-kiln type anaerobic reactor |
| CN109337802A (en) * | 2018-12-10 | 2019-02-15 | 青岛合能环境技术有限公司 | A kind of Horizontal type stirring device suitable for stalk fermentation |
| CN110066722A (en) * | 2019-04-12 | 2019-07-30 | 杭州能源环境工程有限公司 | A kind of multifunctional stirring device suitable for dry type anaerobic fermentation system |
| CN110437985A (en) * | 2019-07-17 | 2019-11-12 | 光大环保技术研究院（南京）有限公司 | A kind of dry type anaerobic reactor |
| CN110479133A (en) * | 2019-05-05 | 2019-11-22 | 天津科技大学 | A kind of spiralling arrangement mode of blade |
| CN111773947A (en) * | 2020-07-16 | 2020-10-16 | 陕西宏达实业有限公司 | A connection structure of U-shaped groove and agitator and installation method of agitator shaft |
| CN111908625A (en) * | 2020-07-09 | 2020-11-10 | 济南大学 | High-efficiency self-crystallization water softening device and process |
| CN112473583A (en) * | 2020-10-27 | 2021-03-12 | 光大环境科技（中国）有限公司 | Stirring paddle blade and stirring device |
| CN113414225A (en) * | 2021-06-30 | 2021-09-21 | 重庆市环卫集团有限公司 | Dry anaerobic digestion and tank bottom desanding system |
| CN113444634A (en) * | 2021-07-28 | 2021-09-28 | 湖北新力大风车现代农业科技有限责任公司 | Hotpot seasoning fermentation device and method |
| CN113462535A (en) * | 2021-05-17 | 2021-10-01 | 建湖悦翔通用设备有限公司 | Aerobic high-temperature fermentation tank for solid organic matters |
| CN116983854A (en) * | 2023-09-08 | 2023-11-03 | 山东建筑大学 | A variable pitch and variable installation angle stirring shaft |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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