Dyeing heat energy recovery method

A high-temperature wastewater and low-temperature technology, applied in the field of dyeing process, can solve the problems of long process time, high energy consumption, high production cost, etc., and achieve the effect of reducing cooling system, reducing sewage discharge and shortening process time.

Inactive Publication Date: 2009-03-11
JIANGSU LIANFA TEXTILE
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  • Description
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Problems solved by technology

The current pollution control method has long process time, high energy consumption and high production cost

Method used

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  • Dyeing heat energy recovery method

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Experimental program
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Embodiment Construction

[0006] The high-temperature wastewater produced by dyeing is firstly exchanged with low-temperature clean water to form low-temperature wastewater, and then the decontamination treatment is carried out.

[0007] Decontamination treatment is to control pollution only by lifting.

[0008] The high-temperature clean hot water obtained after heat exchange can be directly used for the main dyeing vat and the auxiliary vat.

[0009] The time-consuming, supply and drainage parameters of the whole process are shown in the table below:

[0010]

[0011] Note: The whole process of the original process supplies soft water at room temperature (40°C) every time. After the technical transformation, according to the above table, the whole statistical process needs to supply hot soft water at 40°C for 9 times and 98°C for 4 times; hierarchical hot water supply can theoretically reduce the process consumption Time 23min.

[0012] illustrate:

[0013] (1) Cooling discharge heat recovery m...

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Abstract

The invention provides a recovery method for the dyeing heat energy and relates to the technical field of the dye process in spinning post-finishing. The method comprises the following steps: high-temperature waste water obtained by dyeing and low-temperature clean water carry out heat exchange so as to form low-temperature waste water which is then lifted and decontaminated. The heat energy of high-temperature sewage with the average temperature of 78 DEG C generated in the dyeing procedure generates clean and hot water with the temperature of 65 DEG C by a heat energy exchanging system so as to be provided for a dyeing machine, thus achieving the objects of shortening the technique time, saving energy, reducing the discharging and lowering the cost. The recovery method adopts hot water directly, shortens technique time, reduces sewage discharge and sewage treatment, reduces cooling systems and saves energy consumption and investment.

Description

technical field [0001] The invention relates to the technical field of dyeing technology in textile post-finishing. Background technique [0002] The dyeing process produces a large amount of high-temperature wastewater. In order to achieve pollution control, the current treatment method is to collect both high-temperature and low-temperature wastewater in the sewage collection tank, first heat up, and then cool down to form a dischargeable liquid. The current pollution control method has long process time, high energy consumption and high production cost. Contents of the invention [0003] The object of the present invention is to invent a pollution control method for high-temperature wastewater with short processing time, energy saving and production cost saving. [0004] In the invention, the high-temperature waste water produced by dyeing is firstly exchanged with low-temperature clean water to form low-temperature waste water, which is then lifted and decontaminated....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D9/00
Inventor 黄长根于银军严广全范燕安丁忠宝向中林
Owner JIANGSU LIANFA TEXTILE
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