Scraper evaporator

An evaporator and scraper technology, which is applied in the field of concentration and solvent recovery devices, can solve the problems of large resistance of the rotating scraper, poor concentration effect, shaking of the scraper shaft, etc., to achieve reduced shaking, good concentration effect, and improved use safety Effect

Inactive Publication Date: 2014-06-18
酉阳县荞丰农产品开发有限公司
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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 be

Method used

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  • Scraper evaporator

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Embodiment Construction

[0010] As an embodiment of the present invention, such as figure 1 As shown, a scraper evaporator includes a hollow tank body 1, a motor 2 is arranged at the top of the tank body 1, a rotating shaft 3 is arranged vertically inside the tank body 1, and the output end of the motor 2 is connected to the rotating shaft 3 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. A jacket 4 is arranged outside the tank body 1, and several reinforcing ribs are arranged on the inner wall surface of the tank body 1, which improves the strength and rigidity of the tank body 1, makes the tank body 1 not easy to be damaged, and prolongs the service life of the tank body 1. A number of stirring paddles 6 are arranged on the shaft 3 between the motor 2 and the scraper 5, and the stirring paddles 6 are arranged at intervals in parallel ...

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Abstract

The invention discloses a scraper evaporator, and relates to a concentrating and solvent recovering apparatus. The apparatus comprises a hollow tank, the top of the tank is provided with a motor, a rotating shaft is vertically arranged in the tank, the output end of the motor is connected with the rotating shaft, one end of the rotating shaft far from the motor is provided with a scraper plate, a jacket is arranged outside the tank, a plurality of reinforcing ribs are arranged on the surface of the inner sidewall of the tank, the rotating shaft between the motor and the scraper plate is provided with a plurality of stirring blades, and the stirring blades are vertically arranged in a parallel interval manner; and the lower end of the tank is provided with a fixing seat. The apparatus has the advantages of good concentration effect, unlikely shaking of the rotating shaft driving the scraper plate to rotate, use safety, convenience and practicality.

Description

technical field [0001] The invention relates to a concentration and solvent recovery device, in particular to a scraper evaporator. Background technique [0002] Scraper evaporator, also known as scraper concentrator, is widely used in petroleum, chemical, pharmaceutical and other industries, especially for high viscosity (such as tannin extract, honey, etc.) and materials that are prone to crystallization, scaling, and heat sensitivity. 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 contains more te...

Claims

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Application Information

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IPC IPC(8): B01D1/30B01D1/22B01D1/00B01F7/20C07G99/00C07D311/62B01F27/906
Inventor 石胜利
Owner 酉阳县荞丰农产品开发有限公司
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