Recycling treatment agent for zero discharge of rolling waste liquid and treatment method

A technology for recycling and processing methods, applied in separation methods, liquid separation, immiscible liquid separation, etc., can solve the problems of inability to continue to reuse, destroy components, poor compatibility, etc., and save investment costs and processing costs. Effect

Active Publication Date: 2019-04-12
NANJING KERUN LUBRICANTS
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The existing oil-water separation technology mostly uses flocculants and demulsifiers for oil-water separation. These flocculants and demulsifiers have poor compatibility with rolling oil components, and may even destroy the components in rolling oil, resulting in separation The performance of the rolling oil that comes out is damaged in all aspects, so it cannot be reused

Method used

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  • Recycling treatment agent for zero discharge of rolling waste liquid and treatment method
  • Recycling treatment agent for zero discharge of rolling waste liquid and treatment method

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Put 2L of rolling waste emulsion into a beaker, detect that the mass percent concentration of oil in the waste emulsion is 2.5%, that is, the oil content is 50 grams, add oil-water separation oil with 1% (0.5 grams) of oil quality in the waste emulsion agent, stirred for 20 minutes;

[0030] Move the waste emulsion into the separatory funnel, let it stand for 60 minutes, release the lower clear liquid, and then pour the upper layer oil into the recovery oil storage tank;

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Abstract

The invention discloses a recycling treatment agent for zero discharge of rolling waste liquid and also discloses a treatment method for achieving zero discharge of rolling waste liquid by adopting the recycling treatment. The treatment method can achieve thorough oil-water separation of rolling waste emulsion, a separated-out oil product can be mixed with rolled crude oil in proportion for reuse,a water phase can be used for daily water supplementation of a rolling mill, and accordingly zero discharge treatment of the waste emulsion is achieved. After the oil phase separated by the recyclingtreatment agent is blended with the rolled crude oil, the lubricating property of the obtained mixed oil is equivalent to the lubricating property of the rolled crude oil.

Description

technical field [0001] The invention relates to a recovery treatment agent for zero discharge of rolling waste liquid, and also relates to a treatment method for realizing zero discharge of rolling waste liquid by using the recovery treatment agent, which belongs to the technical field of industrial media. Background technique [0002] Emulsion is used as a lubricating cooling medium in the steel rolling process. During the use of the emulsion, there will be a certain amount of waste emulsion; when the emulsion system equipment is overhauled, the emulsion in the equipment must be drained, which will inevitably produce a large amount of waste emulsion . [0003] The current waste emulsion treatment method is basically to separate the waste emulsion from oil and water first. The separated waste oil needs to be further processed and then used as biofuel for incineration. The waste water needs to be flocculated to produce sludge, and the clear liquid needs to be Discharge up t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M175/00C10M175/04C02F1/40B01D17/02B01D17/05
CPCB01D17/02B01D17/04C02F1/40C10M175/0016C10M175/04
Inventor 孙吉庆聂晓霖
Owner NANJING KERUN LUBRICANTS
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