Multiphase flow separation apparatus for semi-coke wastewater

Abstract

The invention relates to a multiphase flow separation apparatus for a semi-coke wastewater. The apparatus comprises a shell, a liquid inlet, a super-gravity cyclone pre-separation barrel, an oil-waterseparation apparatus, an oil-water coalescing apparatus, an oil product storage chamber, an oil outlet and a sewage outlet, wherein the liquid inlet is fixedly connected with one end of the super-gravity cyclone pre-separation barrel, the other end of the super-gravity cyclone pre-separation barrel is fixedly connected with the shell and communicates with the front end of a cavity formed by the shell, the oil-water separation apparatus and the oil-water coalescing apparatus are respectively arranged inside the cavity and fixedly connected with the inner wall of the shell, the oil product storage chamber is arranged at the terminal end of the cavity, and the oil outlet is formed at the shell and communicates with the oil product storage chamber. The apparatus adopts high-efficiency cycloneseparation technology, the separation speed is improved and the settling time is reduced by means of internal runners, coalescing elements and structural forms, the light coal tar, the heavy coal tar, the wastewater, the sludge and the solid suspended matters in the semi-coke wastewater are separated and collected, and the qualified continuous and stable water quality is provided for the wastewater treatment later-section process.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment devices, and in particular relates to a semi-coke wastewater multiphase flow separation device. Background technique [0002] Semi-coke wastewater, also known as semi-coke wastewater, refers to a kind of industrial wastewater formed in the process of low-metamorphism coal dry distillation (about 600-800°C), gas purification, and semi-coke steam quenching. The wastewater has "four high "One less" (high COD, high oil, high ammonia nitrogen, high phenol, less waste water production), which contains a large number of complex components that are difficult to degrade and highly toxic substances, such as ammonia, phenol, petroleum and other substances. During the coke quenching process, most of these pollutants are attached to the semi-coke, which seriously affects the quality of the semi-coke as a clean fuel. [0003] It is imminent to comprehensively treat the high-concentration organic w...

AI Technical Summary

Problems solved by technology

[0004] At present, there is no mature semi-coke wastewater pretreatment process at home and abroad. Semi-coke enterprises directly settle the semi-coke wastewater through the sedimentation tank, and then simply remove the coal tar and suspended solids in the water and directly use it as coke quenching water, which is seriously serious. Affected the quality of semi-coke

In addition, the sedimentation method of the sedimentation tank has low efficiency and is affected by the internal structure, and the indicators of coal tar content and suspended solids content in the treated water are unstable

Images