WO2016061848A1 - 一种节能型搅拌器 - Google Patents

一种节能型搅拌器 Download PDF

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WO2016061848A1
WO2016061848A1 PCT/CN2014/090221 CN2014090221W WO2016061848A1 WO 2016061848 A1 WO2016061848 A1 WO 2016061848A1 CN 2014090221 W CN2014090221 W CN 2014090221W WO 2016061848 A1 WO2016061848 A1 WO 2016061848A1
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rod
radial
tangential
stirring
energy
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PCT/CN2014/090221
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English (en)
French (fr)
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汪深
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湖南屎壳郎环境科技有限公司
汪深
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Publication of WO2016061848A1 publication Critical patent/WO2016061848A1/zh

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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
    • C12M1/00—Apparatus for enzymology or microbiology
    • C12M1/02—Apparatus for enzymology or microbiology with agitation means; with heat exchange means
    • 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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  • the invention relates to the field of bio-environmental protection technology, in particular to an energy-saving agitator in an aerobic fermentation reactor.
  • Chinese patent CN202849272U discloses a reactor for aerobic fermentation.
  • the stirring of the material by the reactor is accomplished by agitating the plate between the spiral blade and the spiral blade, but the plate is rotated circumferentially along the container.
  • the plate copying has a pressing effect on the material, the extrusion reduces the gas permeability of the material to be fermented, the fermentation reaction time is prolonged, the air in the material is extruded, and an anaerobic reaction is generated to generate a toxic gas such as hydrogen sulfide, which harms the aerobic fermentation reaction.
  • the spiral blade and the stirring plate have high resistance and high power consumption, and the rotation in the forward and reverse directions is large, and the equipment is damaged quickly.
  • the technical problem to be solved by the present invention is to solve the problems existing in the prior art described above, and to provide an energy-saving agitator capable of not only stirring the material in all directions, but also avoiding the fouling of the inner wall material of the reactor, and the stirring does not form a pair.
  • the extrusion of the material makes the material more loose, the gas permeability is good, and the aerobic fermentation reaction is promoted.
  • the stirring resistance is small, the power consumption is low, the energy saving effect is remarkable, and the equipment has a long service life.
  • An energy-saving agitator in which a plurality of sets of radial rods are evenly arranged in the radial direction of the stirring shaft, the radius of the end of each radial rod to the stirring shaft is the same, and the radial rod is fixed on the stirring shaft and in the circumference Evenly arranged, a plurality of sets of stirring rods are arranged in the radial direction of the radial rods. A tangential or tangential rod, spiral combination is fixed to the end of the radial rod set.
  • the radial rods are radially arranged on the circumference of the stirring shaft and arranged uniformly in a spiral curve array.
  • the stirring rod axis is parallel to the stirring shaft axis.
  • the tangential bars are equally divided on the circumferential surface of the radial trajectory of the radial rod group.
  • the radial rod is a sheet-like structure, and the length of the sheet-like structure of each radial rod is the same, and the width of the sheet-like structure is much larger than the thickness of the sheet-like structure (W>>H).
  • the stirring rod has a cylindrical shape or a square strip shape and a sheet shape, and the width of the stirring rod is greater than the thickness (W>>H) when the stirring rod is in the shape of a square bar or a sheet.
  • the tangential rod is cylindrical or square strip-shaped, sheet-shaped, and the width of the tangential rod is larger than the thickness (W>>H) when it is a square strip or a sheet shape.
  • the end of the radial rod group is welded with a tangential rod or a tangential rod and a spiral combination, and the radial rod group simultaneously becomes a tangential rod or a tangential rod and a spiral combined support rod.
  • the actual distance between the tangential rod or the tangential rod and the spiral combination from the inner wall of the fermenter is controlled to be less than 5 cm. .
  • the radial rod is fixed on the stirring shaft, the stirring rod is fixed on the radial rod, and the tangential rod is fixed at the end of the radial rod group, and becomes an energy-saving agitator for the sticky wall fermentation material;
  • the radial rod is fixed on the stirring shaft, the stirring rod is fixed on the radial rod, and the tangential rod and the spiral combination are fixed at the end of the radial rod group, and become an energy-saving agitator with both anti-stick wall and screw conveying function.
  • the invention radially installs a plurality of radial rods on the agitating shaft, and radially on the radial rod
  • a plurality of stirring rods are installed, so that a full range of radial and axial agitation is formed, so the stirring effect is good, the material is loose, the gas permeability is good, and the radial rod and the stirring rod structure are cylindrical or square-shaped, sheet-shaped,
  • the stirring resistance is small, the power consumption is low, the energy saving effect is good, and the extrusion of the material is not formed during the stirring, and the anaerobic reaction of the material after being squeezed and the generation of toxic gas such as hydrogen sulfide are avoided.
  • the invention fixedly connects the tangential rod, the tangential rod or the spiral combination at the end of the radial rod group, and the tangential rod can remove the material adhered to the inner wall of the reactor to prevent the mixing, heat transfer and fermentation after the scaling.
  • the spiral can transport the material. Therefore, the two structures can form an energy-saving agitator for the visco-wall fermenting material and an energy-saving agitator capable of both the anti-adhesive wall and the screw conveying function.
  • the invention has many functions, good stirring effect, energy saving and technical performance. excellent.
  • Figure 1 is a perspective view of an energy-saving agitator for a conventional fermentation material
  • Figure 2 is a partial view of an energy-saving agitator for a conventional fermentation material.
  • Figure 3 is a schematic view of A-A in Figure 2;
  • Figure 4 is a perspective view of an energy-saving agitator for a sticky wall fermenting material
  • Figure 5 is a partial view of an energy-saving agitator for a visco-wall fermented material.
  • Figure 6 is a schematic view of B-B in Figure 5;
  • Figure 7 is a perspective view of an energy-saving agitator with a screw conveying function
  • Figure 8 is a partial view of an energy-saving agitator with a screw conveyor function.
  • Figure 9 is a schematic view showing the application of an energy-saving agitator for a conventional fermentation material
  • Fig. 10 is a schematic view showing the application of an energy-saving agitator for a sticky wall fermenting material.
  • Figure 11 is a schematic view of the application of an energy-saving agitator with a screw conveying function.
  • the agitator is designed according to the different materials and functions of the agitated materials, and the present invention will be further described below with reference to the accompanying drawings.
  • the agitator consists of agitating shaft 1 and radial rod 2, stirring rod 3 to form an energy-saving agitator for conventional fermentation materials, and the radial rods of the same length and radius of the stirring shaft are welded.
  • the mechanical fastening process is rigidly connected with the agitating shaft 1; the radial rod 2 is evenly distributed in an annular array in the direction of the spiral curve on the circumferential surface of the agitating shaft 1; a plurality of stirring rods are installed on each radial rod; the axis of the stirring rod is The axes of the agitators are parallel.
  • the radial rod 2 is a sheet-like structure, the width of the sheet-like structure is much larger than its thickness (W>>H); the radial rod 2 is provided with a plurality of sets of stirring rods 3, and the stirring rod 3 is cylindrical. Or a sheet-like structure, when the sheet-like structure has a width greater than or equal to its thickness (W>>H), the end of the radial rod is fixedly connected to the tangential plate 4.
  • the tangential plate 4 is added to the end of the radial rod 2 of the conventional agitator.
  • the whole agitator is composed of a stirring shaft 1, a radial rod 2, a stirring rod 3, a tangential plate, and a plurality of radial rods 2 are rigidly connected with the stirring shaft 1 by welding or mechanical fastening process; the radial rod 2 is at The circumferential surface of the stirring shaft 1 is evenly distributed in an annular array according to the spiral curve direction; a plurality of stirring rods 3 are mounted on each radial rod; the axis of symmetry of the stirring rod is parallel to the central axis of rotation of the agitator; the tangential plate 4 is welded or mechanically fastened. Process and The end faces of the radial rods 2 are rigidly connected.
  • a plurality of sets of radial rods 2 are arranged in the radial direction of the stirring shaft 1 of the viscous material agitator of the fermentation reaction tank, and the radial rod 2 has a sheet-like structure, and the width W of the radial rod 2 is larger than The thickness H;
  • the radial rod 2 is provided with a plurality of sets of stirring rods 3, the stirring rod 3 is cylindrical or sheet-shaped, and when the stirring rod is in the form of a sheet, the width W of the stirring rod 3 is greater than or equal to the thickness H;
  • radial The ends of the rod 2 are welded with a tangential plate 4 which is cylindrical or sheet-shaped, and when it is in the form of a sheet, the width W of the tangential plate 4 is larger than the thickness H thereof.
  • the agitator with screw conveying function is composed of a stirring shaft 1, a radial rod 2, a stirring rod 3, a tangential plate 4 and a spiral 5, and a plurality of radial rods 2 are welded or mechanically fastened.
  • the agitating shaft 1 is rigidly connected; the radial rods 2 are uniformly distributed in an annular array on the circumferential surface of the agitating shaft 1 in a spiral curve direction; each of the radial rods 2 is provided with a plurality of stirring rods 3; the axis of the stirring rods is parallel to the axis of the stirring shaft;
  • the tangential plate 4 is welded to the end of the radial rod 3; the spiral 5 is welded to the plurality of tangential plates 4 to form a tangential rod and a spiral combination.
  • a plurality of sets of radial rods 2 are arranged in the radial direction of the stirring shaft 1, and the radial rods 2 are cylindrical.
  • the radial rod 2 is provided with a plurality of sets of stirring rods 3, and the stirring rod 3 has a cylindrical shape or a sheet shape, and when the sheet shape is a sheet shape, the width thereof is larger than
  • the thickness of the tangential plate 4 is a cylindrical or sheet-like shape, and its width W is greater than its thickness H when it is in the form of a sheet.
  • the energy-saving agitator of the two structures because there is no axial pushing capacity, is generally used in conjunction with the fermentation reaction tank, and the fermentation material of the discharge port is opened and flows out of the tank under the action of gravity.
  • Figure 9 and Figure 10 the energy-saving agitator of the two structures, because there is no axial pushing capacity, is generally used in conjunction with the fermentation reaction tank, and the fermentation material of the discharge port is opened and flows out of the tank under the action of gravity.
  • the energy-saving agitator has both anti-stick wall and discharge function, and the fermentation reaction tank can be horizontally arranged or tilted. Open the discharge door and the material can flow naturally, as shown in Figure 11. At this point, it should be noted that the direction of rotation of the agitator shaft coincides with the direction of discharge of the spiral blade.

Abstract

一种节能型搅拌器，在搅拌轴的径向方向均匀设置有若干组径向杆，在径向杆的径向方向上设置有若干组搅拌杆，搅拌杆轴线与搅拌轴轴线平行，在径向杆组的端部焊接有切向杆或切向杆、螺旋组合。所述的径向杆为片状结构，搅拌杆和切向杆为圆柱形或方条形、片状形，所述切向杆或切向杆、螺旋组合距反应器内壁的实际间距控制5cm以下。本发明能全方位搅拌物料，避免反应器内壁物料粘留结垢，而且搅拌不会形成对物料的挤压，反而使物料更加松动，透气性好，促进好氧发酵反应，由于搅拌阻力小，功耗低，节能效果显著，设备使用寿命长。

Description

一种节能型搅拌器 技术领域
本发明涉及生物环保技术领域，具体涉及一种好氧发酵反应器内的节能型搅拌器。
背景技术
中国专利CN202849272U公布了一种用于好氧发酵的反应器，反应器对物料的搅拌是通过螺旋叶片和螺旋叶片间设置的搅拌抄板来完成的，但抄板沿着容器内做圆周旋转时，抄板对物料有挤压作用，挤压使被发酵物料透气性下降，发酵反应时间延长，物料中的空气挤出后会发送厌氧反应，生成硫化氢等有毒气体，危害好氧发酵反应的进行，同时螺旋叶片和搅拌抄板阻力大，功耗高，正、反方向旋转切换启动功率大，设备损坏快。
发明内容
本发明所要解决的技术问题是：解决上述现有技术存在的问题，而提供一种节能型搅拌器，不仅能全方位搅拌物料，避免反应器内壁物料粘留结垢，而且搅拌不会形成对物料的挤压，反而使物料更加松动，透气性好，促进好氧发酵反应，由于搅拌阻力小，功耗低，节能效果显著，设备使用寿命长。
本发明采用的技术方案是：
一种节能型搅拌器，在搅拌轴的径向方向均匀设置有若干组径向杆，各径向杆的端头至搅拌轴的轴心半径相同，径向杆固定在搅拌轴上并在圆周上均匀布置，在径向杆的径向方向上设置有若干组搅拌杆， 在径向杆组的端部固定有切向杆或切向杆、螺旋组合。
上述技术方案中，所述的径向杆径向安装在搅拌轴圆周上呈螺旋曲线阵列均匀布置。
上述技术方案中，所述的搅拌杆轴线与搅拌轴轴线平行。
上述技术方案中，所述的切向杆在径向杆组端运动轨迹的圆周面上等分布置。
上述技术方案中，所述的径向杆为片状结构，各径向杆的片状结构长度相同，片状结构的宽度远远大于其片状结构的厚度(W>>H)。
上述技术方案中，所述的搅拌杆为圆柱形或方条形、片状形，搅拌杆为方条形或片状形时搅拌杆的宽度大于其厚度(W>>H)。
上述技术方案中，所述的切向杆为圆柱形或方条形、片状形，为方条形或片状形时切向杆的宽度大于其厚度(W>>H)。
上述技术方案中，所述径向杆组的端部焊接切向杆或切向杆、螺旋组合，则径向杆组同时成为切向杆或切向杆、螺旋组合的支撑杆。
上述技术方案中，所述切向杆或切向杆、螺旋组合距发酵罐内壁的实际间距控制5cm以下。。
上述技术方案中，所述径向杆固定在搅拌轴上，搅拌杆固定在径向杆上，切向杆固定在径向杆组端部，成为粘壁性发酵物料用节能型搅拌器；所述径向杆固定在搅拌轴上，搅拌杆固定在径向杆上，切向杆、螺旋组合固定在径向杆组端部，成为既防粘壁又带螺旋输送功能的节能型搅拌器。
本发明在搅拌轴上径向安装若干径向杆，而在径向杆上又径向安 装若干搅拌杆，因此形成了径向、轴向的全方位搅拌，所以搅拌效果好，物料松动，透气性好，而且径向杆、搅拌杆结构为圆柱形或方条形、片状形，搅拌阻力小，功耗低，节能效果好，搅拌时不会形成对物料的挤压，避免出现物料被挤压后的厌氧反应及生成硫化氢等有毒气体。此外，本发明在径向杆组端部固定连接切向杆、切向杆或螺旋组合，切向杆能清除粘结在反应器内壁的物料，防止结垢后影响搅拌、传热和发酵，而螺旋则能输送物料。因此，这两种结构能形成粘壁性发酵物料用节能型搅拌器和既能防粘壁又带螺旋输送功能的节能型搅拌器，本发明功能多，搅拌效果好，节能降耗，技术性能优良。
附图说明
图1为常规发酵物料用节能型搅拌器立体图；
图2为常规发酵物料用节能型搅拌器局部视图。
图3为图2中A-A示意图；
图4为粘壁性发酵物料用节能型搅拌器立体图；
图5为粘壁性发酵物料用节能型搅拌器局部视图。
图6为图5中B-B示意图；
图7为带螺旋输送功能的节能型搅拌器立体图；
图8为带螺旋输送功能的节能型搅拌器局部视图。
图9为常规发酵物料用节能型搅拌器应用示意图；
图10为粘壁性发酵物料用节能型搅拌器应用示意图。
图11为带螺旋输送功能的节能型搅拌器应用示意图。
附图标注说明：
1—搅拌轴、2—径向杆、3—搅拌杆、4—切向板、5—螺旋，6-进料口，7-节能型搅拌器，8-反应器，9-电机减速机，10-底座，11-出料口。
具体实施方式
本搅拌器根据所搅拌的物料不同和功能的不同设计了三种技术方案，下面结合附图对本发明进一步说明。
如图1所示，搅拌器由搅拌轴1和径向杆2、搅拌杆3组成常规发酵物料用节能型搅拌器，径向杆端至搅拌轴心长度半径相同的各径向杆2采用焊接或机械紧固工艺方式与搅拌轴1做刚性连接；径向杆2在搅拌轴1圆周表面按照螺旋曲线方向呈环形阵列均匀分布；每根径向杆上安装若干根搅拌杆；搅拌杆轴线与搅拌器的轴线平行。
如图2所示，径向杆2为片状结构，片状结构的宽度远远大于其厚度(W>>H)；径向杆2上设置若干组搅拌杆3，搅拌杆3为圆柱形或片状形结构，为片状形结构时其宽度大于或等于其厚度(W>>H)，径向杆的端头固定连接切向板4。
如图4所示，对于粘稠性发酵物料，由于其容易粘附在反应罐罐壁上，影响加热效率和发酵效果，故在常规搅拌器的径向杆2端部增加了切向板4，整个搅拌器由搅拌轴1、径向杆2、搅拌杆3、切向板组成，若干根径向杆2采用焊接或机械紧固工艺方式与搅拌轴1做刚性连接；径向杆2在搅拌轴1圆周表面按照螺旋曲线方向呈环形阵列均匀分布；每根径向杆上安装若干根搅拌杆3；搅拌杆对称轴线与搅拌器旋转中心轴线平行；切向板4采用焊接或者机械紧固工艺方式与 径向杆2端面做刚性连接。
如图5所示，在发酵反应罐粘稠性物料搅拌器的搅拌轴1的径向方向设置若干组径向杆2，径向杆2为片状形结构，径向杆2的宽度W大于其厚度H；径向杆2上设置若干组搅拌杆3，搅拌杆3为圆柱形或片状形，搅拌杆为片状形时，搅拌杆3的宽度W大于或等于其厚度H；径向杆2组的端部焊接有切向板4，切向板4为圆柱形或片状形，为片状形时，切向板4的宽度W大于其厚度H。
如图7所示，带螺旋输送功能搅拌器由搅拌轴1、径向杆2、搅拌杆3、切向板4和螺旋5组成，若干根径向杆2采用焊接或机械紧固工艺方式与搅拌轴1做刚性连接；径向杆2在搅拌轴1圆周表面按照螺旋曲线方向呈环形阵列均匀分布；每根径向杆2上安装若干根搅拌杆3；搅拌杆轴线与搅拌轴轴线平行；切向板4焊接在径向杆3端部；螺旋5焊接在若干块切向板4上，形成切向杆、螺旋组合。
如图8所示，在发酵反应罐内的既防粘壁又带物料输送功能的节能型搅拌器，在搅拌轴1的径向方向设置若干组径向杆2，径向杆2为圆柱形或片状形结构，为片状形时，其宽度大于其厚度；径向杆2上设置若干组搅拌杆3，搅拌杆3为圆柱形或片状形，为片状形时，其宽度大于其厚度；切向板4为圆柱形或片状形，为片状形时其宽度W大于其厚度H。
如图1、图5所示两种结构的节能型搅拌器，因为没有轴向推料能力，因此一般配合发酵反应罐斜置使用，打开出料口门发酵物料在重力作用下流出罐体外，如图9、图10所示。
如图9所示既防粘壁又带出料功能的节能型搅拌器，发酵反应罐可水平布置也可斜置。打开出料口门，物料可以自然流出，如图11所示。此时应注意搅拌轴旋转方向与螺旋叶片出料方向相一致。

Claims (10)

  1. 一种节能型搅拌器，其特征在于，在搅拌轴的径向方向均匀设置有若干组径向杆，各径向杆的端头至搅拌轴的轴心半径相同，径向杆固定在搅拌轴上并在圆周上均匀布置，在径向杆的径向方向上设置有若干组搅拌杆，在径向杆组的端部固定有切向杆或切向杆、螺旋组合。
  2. 根据权利要求1所述的节能型搅拌器，其特征在于，所述的径向杆径向安装在搅拌轴圆周上呈螺旋曲线阵列均匀布置。
  3. 根据权利要求1所述的节能型搅拌器，其特征在于，所述的搅拌杆轴线与搅拌轴轴线平行。
  4. 根据权利要求1所述的节能型搅拌器，其特征在于，所述的切向杆在径向杆组端运动轨迹的圆周面上等分布置。
  5. 根据权利要求1所述的节能型搅拌器，其特征在于，所述的径向杆为片状结构，各径向杆的片状结构的长度相同，片状结构的宽度远远大于其片状结构厚度。
  6. 根据权利要求1所述的节能型搅拌器，其特征在于，所述的搅拌杆为圆柱形或方条形、片状形，搅拌杆为方条形或片状形时搅拌杆的宽度大于其厚度。
  7. 根据权利要求1所述的节能型搅拌器，其特征在于，所述的切向杆为圆柱形或方条形、片状形，为方条形或片状形时切向杆的宽度大于其厚度。
  8. 根据权利要求1所述的节能型搅拌器，其特征在于，所述径 向杆组的端部焊接切向杆或切向杆、螺旋组合，则径向杆组同时成为切向杆或切向杆、螺旋组合的支撑杆。
  9. 根据权利要求1所述的节能型搅拌器，其特征在于，所述切向杆或切向杆、螺旋组合距发酵罐内壁的实际间距控制在5cm以下。
  10. 根据权利要求1所述的节能型搅拌器，其特征在于，所述径向杆固定在搅拌轴上，搅拌杆固定在径向杆上，切向杆固定在径向杆组端部，成为粘壁性发酵物料用节能型搅拌器；所述径向杆固定在搅拌轴上，搅拌杆固定在径向杆上，切向杆、螺旋组合固定在径向杆组端部，成为既防粘壁又带螺旋输送功能的节能型搅拌器。
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