Continuous multi-stage countercurrent extraction machine set
A countercurrent extraction and unit technology, applied in the direction of solid solvent extraction, etc., can solve the problems of dilute leaching solution concentration, uneconomical, large solvent usage, etc., and achieve low solvent consumption, automation and adaptability High, simple structure of the machine
Inactive Publication Date: 2010-10-13
滕生茂
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Problems solved by technology
The amount of solvent used is also relatively large, so the concentration of the obtained leachate is also relatively thin, which is also not economical.
At the same time, in order to achieve the corresponding leaching effect, the equipment must reach a certain length, which not only increases the investment, but also increases the occupied area.
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[0017] The unit is composed of two parts: a horizontal spraying system 1 and a vertical lifting system 11. In the horizontal spraying system, the extract is continuously fed into the horizontally moving tray 6 through the feeding port 2. The tray is leak-proof The structure, and under the drive of the tray drive 7, it rotates in a ring at a given speed. The water inlet of the spray pump 31 is connected with the bottom of the vertical system, the water outlet is connected with the first-stage spray pipe 51 of the adjacent vertical system, the water inlet of the spray pump 32 is connected with the first-stage receiving tank 41, and the water outlet is connected with the first The secondary spray pipe 52 is connected, the water inlet of the spray pump 33 is connected with the second receiving tank 42, the water outlet is connected with the third spray pipe 53, the water inlet of the spray pump 34 is connected with the third receiving tank 43, The water outlet is connected to the ...
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The invention discloses a continuous multi-stage countercurrent extraction machine set, comprising a horizontal type spraying system and a vertical lift system, wherein the horizontal type spraying system is communicated with the vertical lift system, the machine set is wholly sealed; the horizontal type spraying system comprises a feeding mouth; a charging tray for receiving objects to be extracted is arranged below the feeding mouth and is provided with a charging tray drive; multistage spraying tubes are arranged above the charging tray; multistage receiving tanks are arranged below the charging tray corresponding to the spraying tubes; spraying stuff pumps are arranged respectively between the first-stage spraying tube and the bottom of the vertical lift system and between spraying tubes at other stages and adjacent receiving tanks at previous stages; the last-stage receiving tank is provided with a liquid outflow pump; and the vertical lift system comprises a lift stuff basket and a lift drive for driving the lift stuff basket to rotate vertically, and a fresh solvent spraying tube and a slag hole are arranged on the upper part of the vertical lift system. The invention realizes continuous and multistage countercurrent extraction with less use amount of solvent and high work efficiency.
Description
technical field [0001] The invention relates to an extraction unit, in particular to a continuous multi-stage countercurrent extraction unit. Background technique [0002] There are three basic forms of leaching operations: single-stage leaching, multi-stage cross-flow leaching, and continuous counter-current leaching. [0003] Single-stage leaching is a single contact of solid plant material with fresh solvent, followed by mechanical separation. In this way, the usage amount of solvent is large, and the obtained leachate concentration is relatively thin, which is uneconomical in industry. At present, multi-functional extraction tanks widely used in Chinese medicine factories, instant tea and tea polyphenol production plants, and other plant extracts belong to this type of equipment. [0004] In multi-stage cross-flow leaching, the fresh solvent and solid material are first contacted in the first stage, and the underflow from the first stage is sent to the second stage, an...
Claims
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IPC IPC(8): B01D11/02
Inventor 周宝才滕生茂
Owner 滕生茂