A kind of multi-tank phenol collection tower
A collection tower and tank technology, which is applied in the field of multi-tank phenol collection towers, can solve the problems that phenol affects the normal production of reactors, etc.
Active Publication Date: 2017-09-15
盐城恒远投资发展有限公司
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Problems solved by technology
[0003] In order to solve the problem that the phenol collection tower in the prior art must cut off the flow to collect phenol and affect the normal production of the reactor, the present invention aims to provide a multi-tank phenol collection tower, which is composed of a plurality of cooling layered tanks, which can Continuously collect the phenol stock solution in the phenol mixture, which will not affect the normal production of the salt-forming reactor
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[0017] See attached figure 1 , the multi-tank phenol collection tower of the present embodiment is combined by a plurality of cooling layered tanks 10, and the cooling layered tank 10 includes a transfer top tank 20 and a collection bottom tank 30, and the transfer top tank 20 is arranged in a cooling The top of the stratified tank 10 is also provided with a mixed liquid feed pipe 21, a waste liquid discharge pipe 22 and a tank isolation valve 23. Inductor 32 and liquid collection inductor 33 are provided with an isolation valve port 34 between the transfer top tank 20 and the collection bottom tank 30. The tank body isolation valve 23 is matched with the isolation valve port 34, and the phenol collection pipe 31 It is arranged at the bottom of the collection bottom tank 30 and is provided with a raw liquid collection valve 35. The liquid discharge sensor 32 is arranged at the top of the collection bottom tank 30 and is provided with a discharge signal line, and the liquid dis...
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A multi-can phenol collection tower is formed by combining a plurality of cooling layered cans. Each cooling layered can comprises a transfer top can and a collection bottom can, wherein the transfer top can is arranged on the top of the cooling layered can, the collection bottom can is arranged at the bottom of the cooling layered can, an isolation valve port is formed between the transfer top can and the collection bottom can, a phenol collection pipe is arranged at the bottom of the collection bottom can and provided with a stock solution collection valve, and a linkage gas conveying pump is arranged on a can isolation valve and communicated with the collection bottom can. A phenol mixed solution is cooled in stages through the cooling layered cans, the cooling effect can be improved, multiple times of phenol stock solution collection can be conducted on the phenol mixed solution, the collection bottom cans can be communicated with the transfer top cans to collect the phenol stock solution and can form independent can bodies to output the phenol stock solution, and the normal production situation of a salt forming reaction kettle cannot be influenced. Therefore, the multi-can phenol collection tower is reasonable in structure, easy to operate and control and capable of effectively improving the production efficiency of the salt forming reaction kettle.
Description
technical field [0001] The invention belongs to a phenol collection tower, in particular to a multi-tank phenol collection 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 phenol collection tower in the prior art must cut off the flow to collect phenol and affect the ...
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IPC IPC(8): B01D17/02
CPCB01D17/02
Inventor 饶建明
Owner 盐城恒远投资发展有限公司