Treatment and recovery device for mixed waste emulsion

Abstract

The invention discloses a treatment and recovery device for mixed waste emulsion. The treatment and recovery device comprises a bottom plate, a power distribution control box is fixedly mounted at theleft end of the top surface of the bottom plate, and a demulsification device is arranged at the right end of the top surface of the bottom plate; the purposes of automatically injecting the waste emulsion and a demulsifier are achieved through the cooperation of a cutoff device and a regulation and control device, the injection amount of the waste emulsion and the addition amount of the demulsifier do not need to be manually controlled, the automation degree is high, and the demulsified mixed liquid can be automatically discharged through a liquid level control device. The demulsification process can be continuously carried out on line, time and labor are saved, the treatment efficiency is high, through cooperation of a strain device and the regulation and control device, the treatment and recovery device for the mixed waste emulsion can be adjusted in time according to the concentration of the waste emulsion, the situation that the adding amount of the demulsifier is too large or too small is avoided, the demulsifier is not wasted, and the production cost is reduced. The utilization rate of the demulsifier is high, the treatment effect is good, the demulsification time is short,and the practicability of the treatment and recovery device for the mixed waste emulsion is improved.

Description

technical field [0001] The invention relates to the field of sewage treatment equipment, in particular to a treatment and recovery device for mixed waste emulsion. Background technique [0002] Emulsion is a high-performance semi-synthetic metalworking fluid. Its main chemical components include water, base oil, surfactants, anti-rust additives, etc. It is especially suitable for the processing of aluminum metal and its alloys, but not suitable for lead-containing materials, such as some brass and tin metals, the product has a long service life and is completely unaffected by oil leakage and mixed oil. The emulsion adopts a special formula without chlorine, which is specially used to solve aluminum metal and its alloys. Various problems that arise during processing, such as chip adhesion, tool wear, poor workpiece surface accuracy, and surface contamination, can not only prevent the workpiece from rusting or being chemically corroded, but also effectively prevent bacterial e...

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Problems solved by technology

[0002] Emulsion is a high-performance semi-synthetic metalworking fluid. Its main chemical components include water, base oil, surfactants, anti-rust additives, etc. It is especially suitable for the processing of aluminum metal and its alloys, but not suitable for lead-containing materials, such as some brass and tin metals, the product has a long service life and is completely unaffected by oil leakage and mixed oil. The emulsion adopts a special formula without chlorine, which is specially used to solve aluminum metal and its alloys. Various problems that arise during processing, such as chip adhesion, tool wear, poor workpiece surface accuracy, and surface contamination, can not only prevent the workpiece from rusting or being chemically corroded, but also effectively prevent bacterial erosion and infection. In the process of processing, it is generally necessary to use emulsion for cooling, lubrication, cleaning, and anti-rust treatment in order to prolong the service life of the machine and improve the processing accuracy. It is necessary to replace the new emulsion regularly, so a large amount of waste emulsion is produced, which is characterized by a wide variety, high concentration of CODcr and oil content, and difficult treatment. In addition to the hazards of general oily wastewater, the waste emulsion is also affected by surfactants. The role of mechanical oil is highly dispersed in water, animals, plants, and aquatic organisms are easier to absorb, and the surfactant itself is harmful to organisms, and can also dissolve some toxic substances that are insoluble in water, which is more harmful to the environment and serious It affects the healthy growth of animals and plants. In order to overcome this problem, the waste emulsion usually needs to be treated and recycled using a mixed waste emulsion treatment and recovery system. The existing mixed waste emulsion treatment and recovery system includes pretreatment devices, demulsification device, oil-water separation device, air flotation treatment device, filter device, etc.

[0003] The demulsification device in the existing mixed waste emulsion treatment and recovery system is composed of a stirring tank and a stirring tank. When in use, the waste emulsion is first injected into the stirring tank, and then an appropriate amount of demulsifier is added to the stirring tank according to the amount of the waste emulsion. Then start stirring to stir the mixed liquid to achieve the purpose of demulsification, but the injection amount of waste emulsion and the amount of demulsifier added are all controlled by workers, the degree of automation is low, and the labor cost is high, resulting in high processing costs. Moreover, each demulsification process needs to be operated according to the steps of injecting waste emulsion, injecting demulsifier, stirring reaction to demulsify, and releasing the waste emulsion after demulsification, which is time-consuming and laborious, with low treatment efficiency and poor treatment effect. The concentration of the demulsifier is not constant, and its concentration is affected by factors such as the use time, emulsion type, and mixing ratio. However, the amount of the demulsifier added cannot be adjusted in time according to the concentration of the waste emulsion, causing the demulsifier Too much or too little added amount occurs, too much demulsifier will cause waste, too little demulsifier will lead to poor demulsification effect and long demulsification time, so it is urgent to design a treatment and recovery device for mixed waste emulsion

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