Defoaming agent adding device for chlorosulfonated polyethylene wet condensation post-processing

Abstract

The invention discloses a defoaming agent adding device for chlorosulfonated polyethylene wet condensation post-processing. The defoaming agent adding device is characterized by comprising a defoaming agent metering tank and a defoaming agent metering pump; an outlet in the bottom of the defoaming agent metering tank is connected with an inlet of the defoaming agent metering pump; an outlet of the defoaming agent metering pump is connected with the top of a 1# condensation kettle. A working process of the defoaming agent adding device comprises the following steps: detecting that all valves of the device disclosed by the invention are in a closed state, the defoaming agent metering pump is in a closed standby state, and all pipelines do not leak; adding a defoaming agent into the defoaming agent metering tank; opening a discharging valve, a first feeding valve, an outlet valve and a second feeding valve in sequence; starting the defoaming agent metering pump and observing the operating situation of the defoaming agent metering pump to ensure that the defoaming agent enters the 1# condensation kettle stably and quantitatively. The defoaming agent adding device for the chlorosulfonated polyethylene wet condensation post-processing has the advantages that the acting position is precise, the defoaming agent works while being added, the adding amount is stable, the operation is simple and convenient, and the labour intensity is reduced.

Description

technical field [0001] The invention relates to chemical equipment, in particular to chlorosulfonated polyethylene wet coagulation post-treatment equipment, which is a defoamer adding device for chlorosulfonated polyethylene wet coagulation post-treatment. Background technique [0002] The production of chlorosulfonated polyethylene is to use a mixed solvent of chloroform and carbon tetrachloride to dissolve polyethylene, generate glue through chlorination and chlorosulfonylation, and then remove the solvent by water condensation to obtain wet glue. The finished product is obtained by extrusion dehydration and expansion drying. Among them, during the water coagulation process, due to stirring, additive addition and steam heating, etc., foams appear in the coagulation kettle, and the foams easily lead to the entrainment of foam during the water coagulation process, and the wet glue enters the condensation condenser, causing the condenser to be blocked. parking. Therefore, t...

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Problems solved by technology

[0004] Using the above process to add defoamer, the operation is complicated, increases the labor intensity of employees, and the amount of addition is unstable, resulting in high consumption of defoamer, and the distance between the addition position of defoamer and the main action position is far away, and it is impossible to achieve immediate effect. purpose, it is easy to cause the device to stop

At the same time, the concentration of the defoamer in the condensed hot water tank 7 is relatively high, and the overflow is entrained, causing the environmental protection index of the device to be out of control

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