CN101234309B - Double helical ribbon multi-layer oar blade scraping cutter type stirrer - Google Patents

Double helical ribbon multi-layer oar blade scraping cutter type stirrer Download PDF

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Publication number
CN101234309B
CN101234309B CN2007101879251A CN200710187925A CN101234309B CN 101234309 B CN101234309 B CN 101234309B CN 2007101879251 A CN2007101879251 A CN 2007101879251A CN 200710187925 A CN200710187925 A CN 200710187925A CN 101234309 B CN101234309 B CN 101234309B
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China
Prior art keywords
blade
ribbon
support
degrees
blades
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Expired - Fee Related
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CN2007101879251A
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Chinese (zh)
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CN101234309A (en
Inventor
张锴
王其成
王卉
张欢
窦涛
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China University of Petroleum Beijing
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China University of Petroleum Beijing
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Abstract

A double helical ribbon stirrer with multiple layers of blade scrapers comprises a stirring shaft (5), helical ribbons (2), support blades (1), separate blades (4) and a soft scraper (3). The support blades (1) and the separate blades (4) are layered and arranged on the stirring shaft (5), and the support blade and the separate blade of each layer are arranged on the stirring shaft (5) symmetrically, and the support blade (1) and the separate blade (4) keep a dip beta of 10 degrees to 45 degrees with the radical level section, and smaller dip can reduce the loss of useful work effectively. The helical ribbons (2) are connected with the stirring shaft (5) through the support blades (1) which have the functions of connecting ribs and strengthening ribs, thus causing reasonable structure design of the whole stirrer. The soft scraper (3) is divided into two sections which are fixed on the top of the helical ribbons (2) symmetrically, and an angle alpha between the soft scraper (3) and a still wall is 20 degrees to 60 degrees. The soft scraper (3) can scrape sticky material on the stirring still wall in time, thus solving the problem of incomplete mixing on the surface of the still wall and avoiding the damage to the still wall. The stirrer of the invention provides a material system that can adapt to different viscosities, in particular to the material system which has large viscosity variation range in a short time.

Description

A kind of double helical ribbon multi-layer oar blade scraping cutter type stirrer
Technical field
The present invention relates to a kind of agitator, specifically a kind ofly can be applicable to different viscosities material system simultaneously, especially be applicable to the double helical ribbon multi-layer oar blade scraping cutter type stirrer of the big material of spread of viscosity at short notice.
Background technology
Agitator is widely used in industrial circles such as oil, chemical industry, food, light industry, pharmacy.Under the agitator effect, the material in gas-liquid, liquid liquid, the system such as liquid-solid disperses mutually, evenly mixes, and has strengthened mass transfer, heat transfer, and its chemical reaction process is strengthened.According to different material characteristics and stirring purpose, the type of the agitator of use also has nothing in common with each other, and mainly contains: dasher, impeller-type stirrer and anchor formula and gate stirrer etc.
For the stirring of high-viscosity material, whether the moulding of agitator and design be rationally most important.Experience was in the laminar region operation in the past, selected frame or the anchor agitator of diameter near the still wall for use, or helix(ribbon type) agitator; Adopt nearly center multilayer hinged joint oar formula or helix(ribbon type) agitator and outer rim anchor agitator to be used in combination to pseudoplastic fluid.But in these two kinds of methods, the former mixing effect is not good enough, and latter's structure is more complicated then.In addition, high-viscosity material occurs stirring the dead band in whipping process easily, and is easy to pile up material on the stirred tank wall.In order to overcome above-mentioned defective, Chinese patent CN2429251Y has designed a kind of plate and frame agitator that sticky material stirs that is used for, and this patent has realized that the systemic circulation of fluid is mobile, and mixed performance is better, but does not have fine solution material to be attached to the sidewall of reactor problem.Though Chinese patent CN2738875Y and CN2430211Y have solved the attached wall problem of material, the agitator structure of Chinese patent CN2738875Y design is too complicated, does not utilize the maintenance and the regular maintenance of agitator, and the equipment investment cost costliness; And Chinese patent CN2430211Y is a kind of scraped wall agitator, and is relatively simple for structure, is suitable for the mixing that density differs bigger two phase materials, but owing to be provided with lacing wire between agitator frame and the scraper plate, causes it not to be suitable for the mixing of high-viscosity material.
Summary of the invention
The objective of the invention is to solve the problem and shortage in the background technology, provide a kind of and can be applicable to low viscosity material, high-viscosity material and the double helical ribbon multi-layer oar blade scraping cutter type stirrer of the big material system of spread of viscosity at short notice simultaneously.
The object of the present invention is achieved like this, it is made up of shaft, ribbon, support blade, independent blade and flexible scraper, it is characterized in that supporting blade and independent blade respectively symmetry be installed on the shaft, with the angle of inclination beta that supports blade and independent blade and radial level cross section in one deck blade is 10 °-45 °, ribbon is connected with shaft by supporting blade, flexible scraper divides the two sections symmetry to be fixed on the ribbon top, and flexible scraper and still wall angle α are 20 °-60 °.
The material system of adding certain viscosity in the stirred tank, startup drive apparatus drive shaft and are installed in the independent blade on the shaft, the ribbon rotation of supporting blade and being attached thereto by the support blade.Material is realized evenly mixing under independent blade, support blade and the dual stirring of ribbon.The flexible scraper on ribbon top when rotated, the sticky material that can in time efficiently the still wall be adhered to is wiped off, thoroughly solves sticky material and is attached to the uneven problem of mixing that the still wall causes.
The present invention compared with prior art has the following advantages:
1. the present invention can realize the stirring to various viscosity material systems, especially is applicable to the material system that spread of viscosity is bigger at short notice;
2. blade structural design of the present invention is mixed the radial circulation stream of material and is reinforced, the ribbon structural design then makes the axial circular flow of material mix and is strengthened, the two combines, and can guarantee that material can both reach excellent mixed effect at stirred tank center and limit wall;
3. the ribbon structure among the present invention plays the effect of baffle plate simultaneously again, and " the cylindric tow-away zone " that can eliminate reactor central authorities under the turbulence state makes mixed flow realize that under shearing, pulverizing, dispersion and twisting effect material fully mixes;
4. blade structural design of the present invention can guarantee effectively to avoid when liquid-liquid system mixes liquid-liquid to separate, and makes the reactor temperature uniformity; When liquid-solid system is mixed, can prevent the solid sedimentation again;
5. the multi-layer oar blade topology layout among the present invention except the radial circulation stream that ensures material mixes, can also promote the axial circular flow of ribbon to mix;
6. the support blade among the present invention links together ribbon and shaft, and the company's of playing muscle and reinforcement effect make whole agitator structure design compacter;
7. the angle of inclination beta that supports blade and independent blade and radial level cross section is 10 °-45 °, and the loss of useful work can be effectively reduced at less inclination angle, reduces the operating cost of equipment;
8. flexible scraper can in time scrape the stirred tank wall, thoroughly solves sticky material and is attached to the uneven problem of mixing that the still wall causes, in the time of can avoiding scraper to scrape the still wall simultaneously, to the damage of still wall.
Description of drawings
Fig. 1 is the agitator structure schematic diagram
Fig. 2 supports blade and independent blade scheme of installation
Fig. 3 is the blade construction schematic diagram
Fig. 4 supports the blade structural representation
Fig. 5 is independent blade structural representation
As shown in the figure, the 1st, support blade, the 2nd, ribbon, the 3rd, flexible scraper, the 4th, independent blade, the 5th, shaft.
The specific embodiment
Agitator is formed by supporting blade 1, ribbon 2, independent blade 4, shaft 5 and flexible scraper 3, support blade 1 and independent blade 4 symmetry respectively are installed on the shaft 5, at the support blade 1 of every layer of installation and the angle of inclination beta in independent blade 4 and radial level cross section is 10 °-45 °, ribbon 2 is connected with shaft 5 by supporting blade 1,3 fens two sections symmetries of flexible scraper are fixed on the top of ribbon 2, and flexible scraper 3 is 20 °-60 ° with wall angle α.
Be written into the material system to be mixed of certain viscosity in the stirred tank, the independent blade 4 on starting drive apparatus drive shaft 5 and being installed in shaft 5, ribbon 2 rotations of supporting blade 1 and being connected with shaft 5 by support blade 1.Material is realized evenly mixing under independent blade 4, support blade 1 and ribbon 2 dual stirrings.The flexible scraper 3 on ribbon 2 tops can be wiped the material that bonds on the still wall off when rotated timely and effectively.

Claims (4)

1. double helical ribbon multi-layer oar blade scraping cutter type stirrer, form by shaft (5), ribbon (2), support blade (1), independent blade (4) and flexible scraper (3), it is characterized in that supporting blade (1) and independent blade (4) respectively symmetry be installed on the shaft (5), ribbon (2) is connected with shaft (5) by supporting blade (1), and flexible scraper (3) divides the two sections symmetry to be fixed on the top of ribbon (2).
2. a kind of double helical ribbon multi-layer oar blade scraping cutter type stirrer as claimed in claim 1 is characterized in that described support blade (1) and independent blade (4) divide the 3-5 layer to be installed on the shaft (5).
3. a kind of double helical ribbon multi-layer oar blade scraping cutter type stirrer as claimed in claim 1, it is characterized in that in described every layer of blade, support blade (1) and independent blade (4) symmetry respectively are installed on the shaft (5), and the angle of inclination beta that supports blade (1) and independent blade (4) and radial level cross section is 10 °-45 °.
4. a kind of double helical ribbon multi-layer oar blade scraping cutter type stirrer as claimed in claim 1 is characterized in that the top that described flexible scraper (3) divides the two sections symmetry to be fixed on ribbon (2), and flexible scraper (3) is 20 °-60 ° with still wall angle α.
CN2007101879251A 2007-11-16 2007-11-16 Double helical ribbon multi-layer oar blade scraping cutter type stirrer Expired - Fee Related CN101234309B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2007101879251A CN101234309B (en) 2007-11-16 2007-11-16 Double helical ribbon multi-layer oar blade scraping cutter type stirrer

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Application Number Priority Date Filing Date Title
CN2007101879251A CN101234309B (en) 2007-11-16 2007-11-16 Double helical ribbon multi-layer oar blade scraping cutter type stirrer

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CN101234309B true CN101234309B (en) 2010-12-22

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CN105126665A (en) * 2015-08-07 2015-12-09 海宁和心饲料有限公司 Horizontal spiral ribbon mixer and technology for processing of trionyx sinensis feed by the same
CN105521729A (en) * 2015-12-08 2016-04-27 无锡万能胶粘剂有限公司 Adhesive agitator tank
CN107694425A (en) * 2017-11-10 2018-02-16 江苏盈天化学有限公司 A kind of agitator of belt scraping plate
GB2577030A (en) * 2018-03-13 2020-03-18 705 Srl Scraper blade
CN109107430B (en) * 2018-09-18 2024-07-30 邵阳金拓科技开发有限公司 Beating machine
CN111804199B (en) * 2020-07-31 2022-06-03 广东博智林机器人有限公司 Stirring structure and stirrer with same
CN112342138A (en) * 2020-11-09 2021-02-09 哈尔滨工业大学 Device and method for preparing biogas by anaerobic fermentation of high-inherent-content solid waste

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US4022438A (en) * 1974-05-13 1977-05-10 Mitsubishi Kasei Kogyo Kabushiki Kaisha Stirring apparatus
CN2250954Y (en) * 1995-11-24 1997-04-02 煤炭科学研究总院爆破技术研究所 Automatic cooler for high-viscous emulsified explosive
US5806977A (en) * 1995-02-28 1998-09-15 Inco Limited Paste production and storage process
CN1243764A (en) * 1998-07-29 2000-02-09 施廷森奈特公司 Heating and mixing still with dual action mixer
US6054103A (en) * 1997-06-25 2000-04-25 Ferro Corporation Mixing system for processes using supercritical fluids
CN2430211Y (en) * 2000-05-26 2001-05-16 中国石油化工集团公司 Wall scraping stirrer
CN201164797Y (en) * 2007-11-16 2008-12-17 中国石油大学(北京) Double helical-ribbon multi-layer propeller blade scraper type stirrer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4022438A (en) * 1974-05-13 1977-05-10 Mitsubishi Kasei Kogyo Kabushiki Kaisha Stirring apparatus
US5806977A (en) * 1995-02-28 1998-09-15 Inco Limited Paste production and storage process
CN2250954Y (en) * 1995-11-24 1997-04-02 煤炭科学研究总院爆破技术研究所 Automatic cooler for high-viscous emulsified explosive
US6054103A (en) * 1997-06-25 2000-04-25 Ferro Corporation Mixing system for processes using supercritical fluids
CN1243764A (en) * 1998-07-29 2000-02-09 施廷森奈特公司 Heating and mixing still with dual action mixer
CN2430211Y (en) * 2000-05-26 2001-05-16 中国石油化工集团公司 Wall scraping stirrer
CN201164797Y (en) * 2007-11-16 2008-12-17 中国石油大学(北京) Double helical-ribbon multi-layer propeller blade scraper type stirrer

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