A kind of phenol condensation stratified collection tower

Abstract

The invention discloses a phenol condensation layering collecting tower which comprises a tank type tower body, a condensation guide tube and a liquid level control valve, wherein a condensation tank body is arranged inside the inner cavity of the tank type tower body; a phenol collecting tube is arranged at the bottom of the tank type tower body; a waste liquid discharge tube is arranged at the top of the tank type tower body; the condensation guide tube is arranged at the center of the inner cavity of the condensation tank body; the top end of the condensation guide tube extends outwards from the top plate of the tank type tower body; a condensation casing is arranged at the periphery of the condensation guide tube; a guide baffle is arranged at the bottom end of the condensation guide tube; the liquid level control valve is connected with the phenol collecting tube and is provided with a liquid level switch and a liquid level sensor. According to the phenol condensation layering collecting tower disclosed by the embodiment of the invention, the condensation tank body and the condensation guide tube are adopted to cool a phenol mixed liquid inside the tank type tower body, the liquid level control valve is adopted to control that the discharge amounts of phenol stoste and combined water is equal to the feeding amount of the phenol mixed liquid, then the phenol stoste can be continuously delivered out through the phenol collecting tube, and normal production of a salt forming reaction kettle is not affected, therefore, the phenol condensation layering collecting tower is reasonable in structure and simple to operate and control, and the production efficiency of the salt forming reaction kettle can be effectively improved.

Description

technical field [0001] The invention belongs to a collecting tower, in particular to a phenol condensation and stratified collecting tower. Background technique [0002] In the process of producing p-hydroxybenzoic acid, water will be generated during the salt-forming reaction and mixed with partially vaporized phenol, and the phenol mixture will be formed after cooling in the cooling bottle. If the phenol stock solution in the phenol mixture is collected and recycled, Can save more production costs. In the prior art, the phenol collection tower adopts the method of cut-off condensation to collect phenol in the phenol mixture. The liquid inlet pipe of the phenol collection tower must be closed and cut-off before the phenol can be collected, which seriously affects the normal production of the salt-forming reactor. Contents of the invention [0003] In order to solve the problem that the prior art phenol collection tower must cut off the flow to collect phenol and affect t...

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Problems solved by technology

[0003] In order to solve the problem that the prior art phenol collection tower must cut off the flow to collect phenol and affect the normal production of the reactor, the present invention aims to provide a phenol condensation layered collection tower, which is provided with a condensation guide pipe and a liquid level control valve, It can continuously collect the phenol stock solution in the phenol mixture without affecting the normal production of the salt-forming reactor

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