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Scraper evaporator

An evaporator and scraper technology, which is applied in the field of new scraper evaporators, can solve problems that affect the safety of equipment, high resistance of the rotating scraper, and shaking of the scraper shaft, and achieve stable rotation, reduce shaking, and improve safety. Effect

Inactive Publication Date: 2016-01-27
魏文鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the production of tea polyphenols, the extract contains more tea dregs, and the solution settles, which affects the formation of a downward-swirling film on the inner wall of the device, and the concentration effect is poor; and because the tea dregs easily settle at the bottom, the rotating scraper is affected The resistance is relatively large, and the rotating shaft that drives the scraper to rotate is prone to shaking, which affects the safety of the equipment

Method used

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  • Scraper evaporator

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Embodiment Construction

[0009] As an embodiment of the present invention, such as figure 1 As shown, a new type of scraper evaporator includes a hollow tank body 1, a motor 2 is arranged on the top of the tank body 1, a rotating shaft 3 is arranged in the tank body 1 along a vertical direction, and the output end of the motor 2 is connected to the rotating shaft 3 Connected, the end of the rotating shaft 3 away from the motor 2 is provided with a scraper 5. In this embodiment, preferably, the scraper 5 is U-shaped, which increases the contact area between the scraper 5 and the solution. The surface of the rotating shaft 3 is provided with several annular projections 9 at intervals along its axial direction, which improves the strength and rigidity of the rotating shaft 3 and makes the rotation of the rotating shaft 3 more stable. A jacket 4 is provided outside the tank body 1, and a number of stirring paddles 6 are provided on the rotating shaft 3 between the motor 2 and the scraper 5, and the stirri...

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PUM

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Abstract

The invention discloses a novel scraper evaporator, and relates to a concentration and solvent recovery device. The evaporator comprises a hollow tank body. A motor is arranged on the top of the tank body. A rotation shaft is arranged along a vertical direction in the tank body. The output end of the motor is connected with a rotation shaft. The end of the rotation shaft away from the motor is provided with a scraper. A jacket is arranged outside the tank body. A plurality of annular protrusions are arranged with spaces on the rotation shaft along the axial direction of the rotation shaft. A plurality of stirring blades are arranged on the part of the rotation shaft between the motor and the scraper. The stirring blades are arranged in parallel with spaces along a vertical direction. A separator is arranged on the part of the rotation shaft close to the top of the inner wall of the tank body. The evaporator has a good concentration effect. The rotation shaft used for driving the scraper is not prone to shaking, and the scraper evaporator is safe to use.

Description

technical field [0001] The invention relates to a concentration and solvent recovery device, in particular to a novel scraper evaporator. Background technique [0002] The new scraper evaporator, also known as scraper concentrator, is widely used in petroleum, chemical, pharmaceutical and other industries, especially suitable for high viscosity (such as tannin extract, honey, etc.) and materials that are easy to crystallize, scale, and heat sensitive. The shell of the scraped evaporator has a heating steam jacket, which is equipped with rotatable blades or scrapers. The feed liquid is added along the tangential direction from the upper part of the evaporator. Due to the action of gravity, centrifugal force and rotating scraper scraper, the solution forms a downward-swirling film on the inner wall of the vessel, and is evaporated and concentrated during the process, and the finished liquid is discharged at the bottom. During the production of tea polyphenols, the extract co...

Claims

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Application Information

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IPC IPC(8): B01D1/22B01D1/30
Inventor 魏文鹏
Owner 魏文鹏