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Paint spraying wastewater washing agent

A cleaning agent and waste water technology, which is applied in waste coating treatment, water/sewage treatment, adsorbed water/sewage treatment, etc., can solve the problems of less use of circulating water, poor condensation reduction effect, and low utilization rate, etc. The effect of clear water quality, improved working environment and extended service life

Inactive Publication Date: 2018-11-16
合肥伟塑信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current water treatment agent has a poor pour point depressing effect, and the pour point depressing rate is not high, so that the circulating water is used less frequently and the utilization rate is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1: a kind of paint spraying waste water cleaning agent, comprises flocculant, coagulant, and described flocculant is the synthetic product of melamine and glyoxal, and described coagulant is polyacrylamide and polydimethyldiallyl A mixture of amine chlorides, the mass fraction of organic amines in the flocculant is 30 parts, and the mass fraction of aldehydes is 60 parts. Dissolve the flocculant and coagulant separately; adjust the pH value of the wastewater to 8.5-10.5; add flocculant at the inlet of the circulating water pump. When using the real-time dosing method, the added flocculant content is the mass fraction of the paint content in the wastewater When using the intermittent timing dosing method, the flocculant content added is 0.5% of the total mass fraction of the wastewater; after the paint-containing circulating water has been deviscosized with the paint mist flocculant, it is added at the outlet of the circulating water pump Coagulant, when the r...

Embodiment 2

[0015] Embodiment 2: The organic amines in the flocculant in the present embodiment is urea, and its mass fraction is 35 parts, and aldehyde is formaldehyde, and its mass fraction is 80 parts, and other processes are the same as embodiment 1, and the obtained water treatment agent After wastewater treatment, the floating rate of waste paint can reach 92%. The free formaldehyde content is 0.96%, the solid content can reach 80.3%, and the paint mist removal efficiency can reach 90%.

Embodiment 3

[0016] Embodiment 3: The organic amine in the flocculant in this embodiment is melamine, and its mass fraction is 26 parts, and aldehyde is propionaldehyde, and its mass fraction is 84 parts, and oxidizing agent is sodium hypochlorite, and its mass fraction is 4 parts , after adding flocculant and coagulant, sodium hypochlorite is added in waste water, and other processes are the same as embodiment 1, and the floating rate of waste paint can reach 97% after the water treatment agent that obtains carries out waste water treatment. The content of free formaldehyde is 1.05%, the solid content can reach 82.3%, and the removal efficiency of paint mist can reach 90%.

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PUM

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Abstract

The invention belongs to the technical field of industrial wastewater treatment and in particular relates to a paint spraying wastewater washing agent. The paint spraying wastewater washing agent is characterized by being prepared from a flocculating agent and a coagulating agent, wherein the flocculating agent is a synthetic product of organic amines and aldehydes; the coagulating agent is a mixture of polyacrylamide and poly(dimethyl diallyl ammonium chloride); in the flocculating agent, the content of organic amines is 26 to 65 parts by mass and the content of aldehydes is 35 to 84 parts bymass. The paint spraying wastewater washing agent provided by the invention has the beneficial effects that paint stuck in an equipment pipeline and a pump body can be effectively removed, and a water path and a gas path are prevented from being blocked; treated paint slag is not sticky and odorous and the floating ratio of waste paint can reach 85 to 97 percent; circulating water is clear and stable operation of production is ensured.

Description

technical field [0001] The invention belongs to the technical field of industrial wastewater treatment, in particular to a cleaning agent for paint spraying wastewater. Background technique [0002] In the automobile, home appliance, furniture industries and some plastic processing industries, most of the coating operations adopt modern spraying technology, and are carried out in closed container spray booths or paint workshops, and are equipped with corresponding air supply and exhaust systems, and moisture paint removal systems. The main purpose of this kind of moisture removal paint mist system is to: remove overspray paint mist; prevent paint mist from polluting the parts to be sprayed; protect the health of on-site painting workers, and the moisture spray booth often used in spraying operations uses water as an absorption agent to form the circulating water in the spray booth. [0003] With the development of modern coating technology, the amount of paint is increasing...

Claims

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Application Information

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IPC IPC(8): C02F1/00C02F1/28C02F1/52C02F1/72C02F103/14
CPCC02F1/00C02F1/28C02F1/52C02F1/72C02F2103/14
Inventor 黄伟
Owner 合肥伟塑信息科技有限公司
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