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Environment-friendly paint slag dewatering modifier and application thereof

A conditioner and environment-friendly technology, applied in the field of environment-friendly paint slag dehydration conditioner, can solve the problems of high cost, large dosage of inorganic flocculants, environmental damage, etc., and achieves low pressure, low cost, and low operating energy consumption. Effect

Inactive Publication Date: 2016-11-16
SHANGHAI EMPEROR OF CLEANING HI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The flocculant with good effect and low cost is the core of this technology. Among the flocculants commonly used at present, the dosage of inorganic flocculant is relatively large, the cost is high, and it is basically taken from natural mineral resources, which is also harmful to the environment. kind of destruction

Method used

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  • Environment-friendly paint slag dewatering modifier and application thereof
  • Environment-friendly paint slag dewatering modifier and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The paint slag dehydration conditioner of the present embodiment has a formula comprising: phosphating sludge accounting for 5% of the dry weight of the paint slag to be treated, iron chloride accounting for 1% of the dry weight of the paint slag to be treated, accounting for 1% of the dry weight of the paint slag to be treated, 1.5% of activated sodium silicate, 2% of bentonite, 0.05% of surfactant, and 0.025% of polyacrylamide. Among them, polysorbate, industrial grade; ferric chloride, industrial grade; activated sodium silicate modified by 1mol / L sulfuric acid; polyacrylamide, anion, molecular weight 10 million, industrial grade.

[0028] The paint residue dehydration conditioner of this embodiment is used to treat the paint residue of an automobile factory in East China. The moisture content of the paint residue is 96.5%, and the agent is added according to the above dosage, which specifically includes the following steps:

[0029] Add 0.05% of surfactant to the pa...

Embodiment 2

[0032] The paint slag dehydration conditioner of this embodiment comprises: phosphating sludge accounting for 10% of the dry weight of the paint slag to be treated, ferric salt accounting for 0.5% of the dry weight of the paint slag to be treated, 0.5% activated sodium silicate, 0.5% bentonite, 0.025% surfactant, and 0.05% polyacrylamide. Among them, polysorbate, industrial grade; ferric chloride, industrial grade; activated sodium silicate modified by 1mol / L sulfuric acid; polyacrylamide, anion, molecular weight 8 million, industrial grade.

[0033] The paint residue dehydration conditioner of this embodiment is used to treat the paint residue of an automobile factory in East China. The moisture content of the paint residue is 94.5%, and the agent is added according to the above dosage, which specifically includes the following steps:

[0034] Add 0.025% of surfactant to the paint residue to be treated, and stir rapidly for 4 minutes; then add ferric salt, which accounts for ...

Embodiment 3

[0037] The paint slag dehydration conditioner of this embodiment comprises: phosphating sludge accounting for 8% of the dry weight of the paint slag to be treated, ferric salt accounting for 1.5% of the dry weight of the paint slag to be treated, 0.5% activated sodium silicate, 3% bentonite, 0.05% surfactant, and 0.05% polyacrylamide. Among them, polysorbate, industrial grade; ferric chloride, industrial grade; activated sodium silicate modified by 1.5mol / L sulfuric acid; polyacrylamide, anion, molecular weight 10 million, industrial grade.

[0038]The paint residue dehydration conditioner of this embodiment is used to treat the paint residue of an automobile factory in Beijing. The moisture content of the paint residue is 97.5%, and the agent is added according to the above dosage, which specifically includes the following steps:

[0039] Add 0.05% surfactant to the paint residue to be treated, and stir rapidly for 4 minutes; then add ferric salt, which accounts for 1.5% of t...

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Abstract

The invention relates to an environment-friendly paint slag dewatering modifier and an application thereof. The modifier is composed of the following components by weight part: 5%-10% of sludge phosphate, 0.5%-2% of trivalence ferric salt, 0.5%-3% of activated sodium silicate, 0.5%-3% of bentonite, 0.025%-0.05% of surface active agent and 0.025%-0.05% of polyacrylamide. The environment-friendly paint slag dewatering modifier is used for dewatering paint slag. Compared with the prior art, the paint slag dewatering modifier provided by the invention utilizes wastes, is low in cost and less in dosage and can effectively reduce the cost of paint slag dewatering. The dewatering pressure of paint slag after modification is low, the running energy consumption is low and the cost is low.

Description

technical field [0001] The invention relates to a dehydration conditioner, in particular to an environment-friendly paint slag dehydration conditioner and its application. Background technique [0002] With the rapid development of economy and society, machinery industries such as automobiles and ships continue to develop. When the product surface is sprayed with paint, a large amount of paint residue is produced. The paint residue has a high moisture content and contains a large amount of benzene series, heavy metals, etc. Pollutants: A large amount of VOC will also be produced during the stacking process, which seriously pollutes the air environment, so the paint residue must be treated legally and effectively. At present, the safer disposal method is incineration. Incineration has requirements for moisture content, so we need to dehydrate the paint slag to reduce the heat supplement and transportation costs in the incineration process. As a widely used and mature technol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D37/03C02F11/14C02F11/12B09B3/00
CPCB01D37/03B09B3/00C02F11/122C02F11/14
Inventor 王炜
Owner SHANGHAI EMPEROR OF CLEANING HI TECH
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