Hot-air mediated evaporation and concentration method

A technology of evaporation concentration and hot air, which is applied in the direction of evaporation, separation methods, chemical instruments and methods, etc., can solve the problems of easy scaling on the heat exchange surface, non-continuous operation, low thermal efficiency, etc., and achieve the effect of increasing the continuous operation time of the equipment

Inactive Publication Date: 2004-08-25
辽宁东大粉体工程技术有限公司
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Problems solved by technology

[0002] At present, the evaporation methods used for liquid evaporation and concentration are all indirect heat exchange methods. The disadvantages of evaporating liquids through heat exchange surfaces are low thermal efficiency, easy scaling of heat exchange surfaces, regular cleaning, and inability to operate continuously. The evaporation method is to evaporate the direct combustion hot gas in contact with the liquid surface. This kind of evaporation and concentration of fuel with direct combustion gas is expensive, and the evaporated liquid is easily polluted.

Method used

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  • Hot-air mediated evaporation and concentration method

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Embodiment Construction

[0011] figure 1 It is a process flow diagram of the present invention, and its structure is described as follows: the air is sent into the gas heating furnace (2) by the delivery fan (1), and enters the evaporator (3) after indirect heating, and the liquid to be evaporated and concentrated is pumped by the pump (6) ), mixed with hot gas at a certain temperature and boiled, part of the liquid forms steam and is discharged from the outlet of the condensing evaporator and enters the condensation preheater, and the condensed gas is discharged from the outlet of the condenser by the induced draft fan. By adjusting the gas heating furnace (2), liquid delivery pump (6), air delivery fan (1), induced draft fan (5) and other components, the air temperature and the concentration of the evaporated liquid can be controlled, so as to ensure the evaporation of the liquid The process requires that the evaporation and concentration process be completed in a very short time.

[0012] The stru...

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Abstract

The present invention relates to the field of concentration by evaporation technology. Said equipment is mainly composed of hot-air indirectly-heating hot-blast furnace, evaporator, condenser and hot-air transferring equipment. The hot-air outlet of indirectly heat-exchanged hot-blast furnace is connected with evaporator by pipeline, the outlet of evaporator is connected with condensation heat-exchanger, and the air outlet of condenser is connected with blower fan by pipeline, so that they are formed into the connected evaporation and condensation system.

Description

Technical field [0001] The invention relates to the technology of evaporation and concentration, and belongs to the technology of chemical heat treatment. Background technique [0002] At present, the evaporation methods used for liquid evaporation and concentration are all indirect heat exchange methods. The disadvantages of evaporating liquids through heat exchange surfaces are low thermal efficiency, easy scaling of heat exchange surfaces, regular cleaning, and inability to operate continuously. The evaporation method is to evaporate the hot gas that is directly burned in contact with the liquid surface. This kind of evaporation and concentration of fuel with direct combustion gas is expensive, and the evaporated liquid is easily polluted. Contents of the invention [0003] The purpose of the present invention is to disclose a fast evaporation method with simple structure, strong practicability and easy popularization and application. [0004] The evaporative concentra...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D1/14
Inventor 张继宇王明彦张吉学
Owner 辽宁东大粉体工程技术有限公司
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