Method of waste heat recovery utilization in cheese dyeing course

Abstract

The invention discloses a method for recycling waste heat in cheese dyeing process, which comprises the following steps: (a) high-temperature dyeing liquor waste water is discharged to a hot waste water collecting pool; (b) a waste water pump is used for pumping the hot waste water in the waste water collecting pool to a heat exchanger with cooling water for heat exchanging; (c) the cooling water after heat exchanging flows into a hot clean water collecting pool for standby; the hot waste water after being cooled is discharged to a waste water ditch for being transferred to a waste water processing station for processing; (d) a clean water pump is used for pumping the hot water in the hot clean water collecting pool to equipment needing the hot water; the equipment is applied to the pretreatment procedure of the cheese dyeing process; the cooled water, condensate water and heat energy of dyeing workshops are recycled. The method adopts fully automatic control process and effectively utilizes the waste heat produced and saves electric energy that is consumed by the heating of water at a normal temperature as well as saves the time of heating process, thus causing production process to be smoother, improving efficiency and also having the advantage of reducing energy consumption.

Description

technical field [0001] The invention belongs to the field of comprehensive utilization of residual energy and residual heat, and relates to a method for recovering and utilizing residual heat in the cheese dyeing process. Background technique [0002] In recent years, my country's printing and dyeing industry has developed rapidly, and its processing capacity ranks first in the world, becoming a major textile printing and dyeing production country. In 2006, the output of printing and dyeing cloth above designated size was 43.030 billion meters, an increase of 10.47% year-on-year; the number of printing and dyeing enterprises above designated size was 1948, an increase of 7.27% year-on-year. The added value of printing and dyeing products continued to increase, and the profit level increased. However, my country's printing and dyeing enterprises have high energy consumption, low production efficiency, low resource utilization, and high pollution. According to the statistics ...

AI Technical Summary

Problems solved by technology

The dyeing and post-treatment stages in the cheese dyeing process consume the most energy, not only because a large amount of waste water is discharged after dyeing the cheese, but also because the large amount of heat energy carried in this large amount of waste water cannot be fully utilized. As the waste water The discharge and natural cooling are wasted

[0003] At present, most of the printing and dyeing factories directly discharge the high-temperature dyeing liquid from the equipment after the dyeing process, without any recycling, resulting in a waste of a lot of heat contained in it. Generally, the temperature of the dyeing liquid after dyeing is about 80 ° C, high temperature It can reach 130°C when discharged, and the heat carried by it can raise the temperature of the equivalent water at room temperature by about 30-40°C, and the highest temperature can reach above 80°C. The large amount of heat energy carried in the wastewater has not been utilized

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