Spiral-ribbon-type wall-scraping stirring device
A technology of wall-scraping stirring and spiral ribbon, which is applied in the field of reactor stirring devices, can solve the problems of insufficient mixing of materials, prolonging the stirring time, and inability to move up and down, so as to reduce the stagnation area, improve product quality, and reduce the dead angle of stirring Effect
Pending Publication Date: 2019-05-07
无锡意凯自动化技术有限公司
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Problems solved by technology
When the volume of the reactor is small, this structure can meet the requirements; when the volume of the reactor is large, because the material can only be subjected to the centrifugal force in the horizontal direction, the material can only move in the same plane, and cannot move up and down, resulting in a gap between the layers. The materials can not be fully mixed, resulting in uneven mixing
In order to improve the mixing quality, the mixing time can only be extended, which reduces the production efficiency
Method used
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Embodiment Construction
[0014] Such as figure 1 As shown, the ribbon-type scraping stirring device includes a stirring shaft 1, a stirring paddle 2 and an active scraping board 3, wherein the lower end of the stirring shaft 1 is installed in the center groove at the end of the stirring paddle 2; the stirring paddle 2 includes several circumferentially arranged The spiral ribbon 21, the ribbon connecting shaft 22 connecting the ribbon 21; several active scraper boards 3 are installed in the middle part of the outer side of the ribbon connecting shaft 22 in turn.
[0015] The stirring shaft 1 rotates clockwise and counterclockwise around its own axis, driving the stirring paddle 2 to rotate clockwise or counterclockwise. While rotating, the active scraper 3 on the ribbon connecting shaft 22 is close to the wall of the kettle, The material on the wall of the kettle is scraped off and mixed again with the high-temperature or low-temperature material in the kettle. In the heating state, the stirring shaf...
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The invention discloses a spiral-ribbon-type wall-scraping stirring device. The device comprises a stirring shaft, a spiral-ribbon-type stirring paddle and active wall scraping plates, wherein the lower end of the stirring shaft is installed in a central groove of the end portion of the spiral-ribbon-type stirring paddle; adjacent spiral ribbons in the spiral-ribbon-type stirring paddle are circumferentially staggered by 90 degrees; and the active wall-scraping plates are sequentially installed in the middle of a spiral ribbon connection shaft of the spiral-ribbon-type stirring paddle. Compared with the prior art, the device provided by the invention has the following advantages: 1, a retention area of a high-viscosity fluid in a reaction kettle is reduced, and the heat exchange efficiencyis improved by 5-6 times; and 2, turbulent flow of the fluid in the reaction kettle during stirring is increased by utilizing the spiral-ribbon-type wall-scraping technology, and the stirring efficiency is improved.
Description
technical field [0001] The invention relates to a stirring device for a reaction kettle in the chemical industry, food or pharmaceutical industry, in particular to a ribbon-type wall-scraping stirring device. Background technique [0002] Reactor, as a material reaction pressure vessel, is widely used in chemical, food or pharmaceutical industries to complete vulcanization, alkylation, polymerization, condensation and other processes. At present, the widely used reactor stirrers mainly include paddle type, propulsion type and turbine type. Among them, the paddle type stirrer adopts blade welding or bolting on the wheel shaft, and is mainly used in liquid-liquid system for mixing and uniform temperature. It is mostly used in solid-liquid systems to prevent solid settlement. The push-type agitator is mainly used in low-viscosity fluids. When agitating, the fluid is sucked in from the top of the paddle and discharged in a cylindrical spiral form from the bottom. The degree of ...
Claims
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IPC IPC(8): B01F7/00B01F15/00
Inventor 宋花江
Owner 无锡意凯自动化技术有限公司