Metal processing waste liquid coal water slurry fuel

Abstract

The invention discloses waste metal processing liquid coal water slurry fuel which comprises a waste metal processing liquid, coal water slurry as well as a dispersing agent and a coupling agent, wherein the waste metal processing liquid, the coal water slurry, the dispersing agent and the coupling agent are mixed up to prepare a coal water slurry mixture applicable to combustion. Therefore, the waste metal processing liquid can be effectively treated, the heat amount of the coal water slurry is improved, a good combustion property is achieved, the energy waste is effectively avoided, the problem about stability of a conventional organic waste liquid coal water slurry product is substantially solved, good flowbility is achieved, and the waste metal processing liquid coal water slurry fuel is easy to load, unload, store, convey in pipelines, combust in atomization spaces and the like.

Description

technical field [0001] The invention relates to the field of fluid fuels, in particular to a metal processing waste liquid coal water slurry. Background technique [0002] Metal processing waste liquid is mainly produced in metal processing factories such as steel factories, machinery processing factories, hardware and electronic manufacturing factories, etc. Metal processing waste liquid generally contains about 95% water, followed by about 5% of mineral base oil and organic additives such as emulsifiers. Because the COD value (chemical oxygen demand) of the waste liquid is very high, if it is discharged to the outside without treatment, it will cause serious environmental pollution. At present, on the one hand, the treatment of metal processing waste liquid is that small enterprises secretly and directly discharge it will inevitably pollute the environment; etc. processing fees. Environmental protection companies use physical and chemical methods to separate metal proce...

AI Technical Summary

Problems solved by technology

The disadvantages of the above two methods are: first, the direct discharge has caused great damage to the environment; second, the processing cost of the environmental protection company is high and the content of useful components that can be recycled later is relatively low.

The prior art also has metal processing waste liquid treated by coal-water slurry, such as the "paper-making black liquor coal-water slurry" of Chinese patent CN103103001A. Although it can effectively treat paper-making black liquor, the combustion efficiency of the paper-making black liquor coal-water slurry is It is not particularly high, the calorific value is relatively low, and it cannot achieve energy recovery and utilization in the true sense, and more importantly, there are problems with relatively poor fluidity and stability, and it is not easy to load and unload, store, pipeline and transport. Atomized space combustion, etc.

[0003] Therefore, there is a need for a metal processing waste liquid coal-water slurry that is easy to treat organic waste liquid, which can not only effectively treat metal processing waste liquid, increase the calorific value of coal water slurry, have better combustion performance, effectively avoid energy waste, and It fundamentally solves the product stability problem of organic waste water coal water slurry in the past, and has good fluidity, easy to load and unload, store, pipeline transportation and atomization space combustion, etc.