Waste emulsion treatment technology and operation method thereof

Abstract

The invention discloses a waste emulsion treatment technology and an operation method thereof. The waste emulsion treatment technology and the operation method thereof comprise firstly, conducting coarse filtration before a waste emulsion is discharged into a demulsification box, after the waste emulsion is subjected to primary filtration and enters the demulsification box, conducting demulsification operation, discharging an obtained waste emulsion subjected to demulsification into a flotation tank through a pipeline, adding an alkaline additive to adjust acid-base balance of an obtained solution, then adding a flocculating agent, discharging an obtained waste emulsion, which is subjected to flotation and flocculation operation, into a sedimentation tank through a pipeline for sedimentation, discharging a waste emulsion which is subjected to sedimentation and is up to state-specified standard, and finally, clearing pollutants of sludge and the like at the bottom end of the sedimentation tank after the pollutants are subjected to evaporation and drying. According to the waste emulsion treatment technology and the operation method thereof, the waste emulsion is subjected to step-by-step segmented treatment, treatment is highly targeted, a treatment device is simple in structure and low in cost, the technology process is short, staff operation is simple and convenient, meanwhile,a large amount of waste emulsions can be treated in batches, and natural phenomena of evaporation, drying and the like are flexibly used for reducing energy consumption, so that economic benefits aregood, the water quality after treatment is conducted meets the national standard discharging requirements, and harm to the environment is reduced.

Description

technical field [0001] The invention relates to the technical field of environmental protection treatment of waste emulsion, in particular to a waste emulsion disposal process and an operation method thereof. Background technique [0002] Emulsion is a semi-synthetic processing fluid product containing mineral oil, which is suitable for large-scale aluminum casting production operations. In the production process of the machining industry, lathes generally use emulsion for cooling, lubrication, cleaning and rust prevention, etc., which can be extremely Greatly extend the service life of the lathe. In the metallurgical cold rolling industry, a large number of emulsions are generally used as coolants and lubricants in the steel rolling process. The emulsion is mixed with a certain proportion (about 92% to 95%) of water from rolling oil. Due to heat, pressure and long-term contact with air during the steel rolling process, the emulsion will undergo rancidity, rot and other dete...

AI Technical Summary

Problems solved by technology

[0002] Emulsion is a semi-synthetic processing fluid product containing mineral oil, which is suitable for large-scale aluminum casting production operations. In the production process of the machining industry, lathes generally use emulsion for cooling, lubrication, cleaning and rust prevention, etc., which can be extremely Greatly extend the service life of the lathe. In the metallurgical cold rolling industry, a large number of emulsions are generally used as coolants and lubricants in the steel rolling process. The emulsion is mixed with a certain proportion (about 92% to 95%) of water from rolling oil. Due to heat, pressure and long-term contact with air during the steel rolling process, the emulsion will undergo rancidity, rot and other deterioration phenomena, resulting in changes in physical parameters such as the saponification value of the emulsion, which cannot meet the use requirements, and the emulsifier needs to be replaced. Other industries that use emulsions need to replace the emulsions for various reasons, resulting in a large amount of emulsion waste

[0003] At present, some existing manufacturers will directly discharge the waste emulsion, resulting in environmental pollution. A small amount of waste emulsion is recycled by professional manufacturers and then processed centrally. The recycling cost is high and the economic benefit is poor. Large waste emulsion treatment stations, although the The cost is reduced and the economic benefits are increased, but the investment in processing equipment is large and the construction cost is high