Nitrobenzene separator with nitrobenzene layered interface regulating device

Abstract

The invention provides a nitrobenzene separator with a nitrobenzene layered interface regulating device. The nitrobenzene separator comprises a shell, and is characterized by further comprising corrugated packing, a phase weir device and a partition plate, wherein the corrugated packing is fixedly connected in a containing cavity of the shell, the phase weir device is fixedly connected in the containing cavity of the shell, and the partition plate is internally arranged at a water outlet and is hermetically sealed; a baffle plate is arranged and fixedly connected between the corrugated packing and the phase weir device. When the separator is in working, a turbidity solution containing nitrobenzene and water is fed into the containing cavity of the nitrobenzene separator from a feed opening and gradually form a film to be downward gathered through the corrugated packing so as to separate the nitrobenzene and the water; the separated nitrobenzene is discharged from the nitrobenzene separator through the phase weir device, and the separated water is discharged from a water outlet; when the turbidity degree of the turbidity solution is high, the phase interface height is increased by using the phase weir device so that the separated nitrobenzene is relatively pure; when the turbidity degree of the turbidity solution is low, the phase interface height is lowered by using the phase weir device so as to increase the outlet speed of the nitrobenzene.

Description

technical field [0001] The invention relates to process equipment for adiabatic nitration wastewater treatment, which is a nitrobenzene separator with a nitrobenzene layered interface adjustment device, which is used for rapidly separating nitrobenzene and nitrobenzene in the primary treated adiabatic nitration nitrobenzene wastewater. water. Background technique [0002] In the nitrobenzene industry, the adiabatic nitration technology of the German company Masino has replaced the original domestic pot-type nitration technology with an efficient and safe design concept. In the adiabatic nitrification process, most of the nitrobenzene and a small part of water in the wastewater are separated from the wastewater, and the mixture of this part of nitrobenzene and water enters the nitrobenzene separator for further separation. After separation, nitrobenzene enters the washing unit, and water enters the process water tank as washing water for the washing unit. [0003] The tradi...

AI Technical Summary

Problems solved by technology

The existing problem is: to completely separate nitrobenzene and water requires a long residence time, so the volume of the equipment is extremely large, and because the static method separates nitrobenzene and water, the structure of the equipment is too simple. When the degree of emulsification is high, the separation effect is not good, and a large amount of water is still entrained in the separated nitrobenzene

This part of water emulsifies with the treated nitrobenzene, and the amount of entrained water increases by about 10-20%, which increases the difficulty for subsequent processing

On the other hand, the poor separation effect of the nitrobenzene separator also causes nitrobenzene to be entrained in the separated water. When this part of water enters the nitrobenzene wastewater stripping tower for treatment again, it will greatly reduce the efficiency of the tower and increase The use of steam increases the energy consumption and operating costs of nitrobenzene wastewater treatment

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