Industrial waste oil treatment process

Abstract

The invention discloses an industrial waste oil treatment process which comprises the following steps: dissolving ethylene glycol butyl ether and a water-coal-slurry additive in industrial waste oil, stirring at normal temperature, and forming a mixed liquid; and adding pulverized coal and water into the mixed liquid, and continuously stirring to form a water-coal-slurry product which is not layered. According to the process, the original scraped waste oil which cannot be directly discharged is changed into a valuable material, the subsequent treatment cost is saved, and the heating value of the water-coal-slurry product prepared by utilizing the industrial waste oil is correspondingly improved. Moreover, the problem that the traditional organic waste liquid water coal slurry is low in stability is solved according to a coupling agent stabilization technology provided by the invention, the problem of the system stability of the product can be fundamentally solved, the stability of the product is improved, oil-water separation is not generated due to long-term standing, the operations of loading and unloading, storage, pipeline transportation and atomization space combustion are easy, and the process can be used for oil, gas and coal combustion in power station boilers, industrial boilers and industrial furnaces.

Description

technical field [0001] The invention relates to the field of industrial waste oil treatment, in particular to a process for treating industrial waste oil using scrapped equipment oil (including hydraulic oil, gear oil, etc.), industrial waste engine oil, and industrial scrap processing oil on industrial equipment. Background technique [0002] Various equipment oils (including hydraulic oil, gear oil, etc.), industrial waste engine oil, industrial scrap processing oil, etc. that must be used on industrial machinery and equipment play a role in lubricating and protecting equipment or knives, but in the end these oils will Due to the mixing of water, mechanical impurities, oxidation, acidification and other reasons, it cannot continue to be used and is scrapped. It will be scrapped when the performance drops and fails to meet the requirements, but because of the mineral oil and other organic additives contained in it, the COD value (chemical oxygen demand) is very high and can...

AI Technical Summary

Problems solved by technology

[0002] Various equipment oils (including hydraulic oil, gear oil, etc.), industrial waste engine oil, industrial scrap processing oil, etc. that must be used on industrial machinery and equipment play a role in lubricating and protecting equipment or knives, but in the end these oils will Due to the mixing of water, mechanical impurities, oxidation, acidification and other reasons, it cannot continue to be used and is scrapped

It will be scrapped when the performance declines and fails to meet the requirements, but because of the mineral oil and other organic additives contained in it, the COD value (chemical oxygen demand) is very high and cannot meet the direct emission standard

In the past, manufacturers either secretly discharged, which not only caused great damage to the environment, but also violated the corresponding environmental protection laws and regulations of our country.

Either hand it over to an environmental protection company with corresponding qualifications, but the high processing cost generally ranges from 800-2000 yuan / ton, which brings a lot of economic burden to the enterprise

In the prior art, industrial waste oil is also treated by coal-water slurry, but the combustion value of coal-water slurry is not high, which cannot completely and effectively solve the problems of resource waste and environmental pollution, and more importantly, the system stability is relatively poor The problem is that oil-water separation will occur after standing for a long time, and it is not easy to load and unload, store, pipeline transport and atomize space combustion, etc.