Water diversion recovering device for polycarboxylic acids series dehydragent macromer preparation

Abstract

The invention relates to a water separation recovery device for preparing a polycarboxylic acid type water-reducer macromonomer, including a water separator, a liquid mixing pipe, a return pipe and adischarge pipe, the discharge pipe is arranged at the bottom part of the water separator, the liquid mixing pipe is arranged at the top part of the water separator, the return pipe is arranged at theupper-middle position of the water separator, the lower part of the discharge pipe is connected with a material discharging three-way valve, the material discharging three-way valve is respectively connected with a solvent recovery pipe, an automatic water drainage pipe and a water discharge pipe, the other end of the solvent recovery pipe is connected with a dehydration molecular sieve device, the other end of the automatic water drainage pipe is connected with a water collecting barrel, a solvent recovery valve, an automatic water drainage valve and a water discharge valve are respectively arranged on the solvent recovery pipe, the automatic water drainage pipe and the water discharge pipe, and the lower part of the dehydration molecular sieve device is connected with a solvent dischargepipe and a solvent discharge valve. The device is visible and convenient in operation and comprises the solvent recovery and recycling device, which has higher production efficiency.

Description

technical field [0001] The invention relates to a water separation and recovery device for synthetic resins, in particular to a water separation and recovery device for preparing polycarboxylate water reducer macromonomers. Background technique [0002] When using solvents to produce synthetic resins such as alkyds and polyesters, water is continuously formed during the polymerization process and must therefore be continuously discharged. Artificial water separation through ordinary water separators often discharges the intermediate layer composed of solvent and water, and even the solvent. The website of the State Intellectual Property Office of the People's Republic of China has announced an automatic drainage water separator for synthetic resin production. The automatic drainage water separator only needs to open the valve once, and the water will be continuously and automatically discharged, and the solvent layer and the intermediate mixed layer Always inside the manifo...

AI Technical Summary

Problems solved by technology

[0003] 1. The technical parameter control requirements for the preparation process of polycarboxylate superplasticizer macromonomers are relatively strict, and it is necessary to intuitively control the reaction process of macromonomers; secondly, the preparation process of polycarboxylate superplasticizer macromonomers requires vacuuming, The water separator is generally used in the production of unsaturated polyester, which is not suitable for the preparation of the macromonomer of the polycarboxylate water reducer;

[0004] 2. A large amount of water needs to be added to the water separator during production, which reduces the production efficiency;

[0005] 3. There is no organic solvent discharge port. After the reaction is completed, the remaining organic solvent in the water separator can only be discharged through the water discharge pipe, and the discharge is not complete, causing pollution;

[0006] 4. No solvent recovery and recycling device, resulting in energy waste

Images