Alloy material for water treatment of spinning industry and its preparing process

Abstract

The invention discloses an alloy material, which is used in textile industrial wastewater treatment to increase water activity and dissolvability of calcium, iron and magnesium in water, can remove deposition and prevent deposition formation. The comprised component and their mass proportion are as follows: copper 49.8- 64.8%, zinc 25- 40%, nickel 5- 10%, iron 5- 10%, manganese 0.01- 0.1% and rare earth element 0.01- 0.15%. The invention also discloses the method for preparing said alloy, and the application of alloy of fairshaped gain groove structure, granular structure and fiber structure in washing water, dyeing water, filtering bed or composite filtering bed.

Description

technical field [0001] The invention relates to an alloy material for water treatment in the textile industry and a preparation method thereof. Background technique [0002] The water used by textile enterprises with special requirements can be classified into three categories: 1. Washing water; 2. Dyeing water; 3. Boiler water and heat exchange water. [0003] For washing water, if the pre-treatment washing water contains iron ions (mainly from the corrosion of pipelines), the fiber will be brittle and damaged during the oxygen bleaching process, resulting in holes or pinholes, which will cause huge losses to the enterprise. Threat, have to directly or indirectly apply a large amount of chelating dispersant (one of the main components of refining agent and scouring agent is chelating dispersant), at the same time, calcium and magnesium ions will also increase the difficulty of washing, resulting in pre-treatment washing If the amount of detergent increases substantially, i...

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Problems solved by technology

[0003] For washing water, if the pre-treatment washing water contains iron ions (mainly from the corrosion of pipelines), the fiber will be brittle and damaged during the oxygen bleaching process, resulting in holes or pinholes, which will cause huge losses to the enterprise. Threat, have to directly or indirectly apply a large amount of chelating dispersant (one of the main components of refining agent and scouring agent is chelating dispersant), at the same time, calcium and magnesium ions will also increase the difficulty of washing, resulting in pre-treatment washing If the amount of detergent increases substantially, it will of course double the amount of builders (such as phosphate, etc.). The use of a large number of surfactants and phosphates will also bring great pressure to sewage treatment, or spend huge sums of money on water treatment. Deionization treatment is carried out, but in the process of pipeline transportation of deionized water, a large amount of iron ions will be introduced due to pipeline corrosion, and chelating dispersants will inevitably be used; a medium-sized printing and dyeing factory with a monthly output of 10 million meters of pure cotton cloth only The cost of chelating dispersant is about 6 million yuan, and the expenditure per meter cloth is about 0.05 yuan; due to its own influence or external influence, the water pollution of printing and dyeing factories is serious, and there is a trend of aggravating pollution, which is manifested by the increase of surface tension of water. Large, the penetrating ability and emulsifying ability are greatly reduced, and the microcosmic changes are that the degree of association of water molecules increases greatly, and the content of metal ions increases

Especially for the Yangtze River Delta region, Guangdong Fujian region, and Bohai Bay region where surface water is used (the above three regions are the concentration areas of my country's textile printing and dyeing and leather industries), the amount of detergent is increased and the washing speed is reduced, which greatly increases the amount of water and water used by enterprises. Electricity, steam consumption, and also increase the burden of sewage treatment, (Note: The national environmental protection department's supervision of the sewage treatment of textile enterprises has not yet supervised the surface tension of the discharged water quality and the degree of association of water molecules, and many textile printing and dyeing enterprises have not paid attention to it. As a result, the quality of the water used will decline, and the degree of association of water molecules will increase, resulting in the amount of surfactants, water, electricity, and steam consumption, and the cost of sewage treatment will increase year by year)

[0004] For dyeing water, if the dyeing water contains more calcium, magnesium or iron ions, the dyes will aggregate, causing color flowers, color stains, and color spots, which will eventually cause dyeing failure and bring huge losses to the enterprise, which will force the enterprise to indirect Properly use a large amount of chelating dispersant (the main component of leveling agent)

[0005] For boiler water and heat exchange water, textile enterprise boiler water is the same as other industrial boiler water. There are two occasions for textile enterprise heat exchange water: 1. The cooling water used for cooling printing and dyeing machinery is generally required to meet the treatment standards for medium and large boiler industrial water , otherwise, heat exchanger fouling will double the amount of hot steam, process time, and also seriously affect the quality of textiles, generally through static, fiber filtration, electrodialysis, removal of anions and cations, commonly known as deionization 2. Due to the shortage of energy, many printing and dyeing enterprises have built waste heat recovery devices for waste water, that is, use waste water to heat cold clean water and use it directly as hot clean water. The gas saving can reach more than 60%, but it is troublesome The problem of printing and dyeing enterprises is the treatment of heat transfer water. The cost of boiler water for waste heat recovery device is too high, and the one-time investment of special pipeline is very large, or use foreign descaling device, anti-scaling device with a flow rate of 1 ton / hour The market price is RMB 6,000, and the effect is mediocre. Due to the large water consumption of printing and dyeing factories, the company is overwhelmed, and affected by market changes, many leaders of printing and dyeing factories hold a wait-and-see attitude towards new investment. Various factors cause waste heat Recycling, an energy-saving project, cannot be promoted on a large scale at all