Waste residue screening device for polyether defoamer preparation

Abstract

The invention relates to the technical field of chemical additive preparation, in particular to a waste residue screening device for polyether defoamer preparation, which comprises a screening box, a storage cavity is arranged in the screening box, a partition plate is transversely arranged in the storage cavity, and the partition plate sequentially divides the storage cavity into a liquid storage cavity and a waste storage cavity. A filter cartridge, a second filter screen and a third filter screen are sequentially arranged in the liquid storage cavity from top to bottom, a waste discharge pipe is mounted at one end of the filter cartridge, a feeding pipe is mounted at the other end of the filter cartridge, a first fixing seat sleeves the feeding pipe, and a driving mechanism for driving the feeding pipe to axially rotate is arranged in the first fixing seat; and a second fixing seat sleeves the waste discharge pipe, the second fixing seat is rotatably mounted on the side wall of the waste storage cavity, and a sealing assembly used for blocking the waste discharge pipe is arranged in the second fixing seat. The filter cartridge is in an axial movement state, so that the filtering time of the solvent in the filter cartridge can be effectively shortened, and the preparation efficiency of the polyether defoaming agent is improved.

Description

technical field [0001] The invention relates to the technical field of chemical auxiliary preparation, in particular to a waste residue screening device for the preparation of polyether defoamer. Background technique [0002] In the industrial production process of synthetic latex, papermaking, textile, food, fermentation, medicine, etc., many foams, even harmful foams, are often produced, affecting normal production, which requires defoaming agents to eliminate or inhibit. [0003] Polyether defoamer is one of the most important types of defoamer products. It is non-toxic, odorless, non-irritating and easy to disperse in water. In addition to general industrial applications, it can also be used in food, fermentation, In industries such as cosmetics and medicine, silicon-containing defoamer cannot be replaced. [0004] In the prior art, during the processing of the polyether defoamer, the produced stock solution of the polyether defoamer is extracted to remove impurities in...

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Problems solved by technology

[0004] In the existing technology, during the processing of the polyether defoamer, the produced polyether defoamer stock solution is extracted to remove impurities in the water. However, most of the existing waste residue screening devices are screened through a filter. Direct filtration, the filtration speed is slow and the effect is not good, and because the equipment function is relatively simple, it is usually after filtering all the solvents in multiple batches, and finally the waste residue accumulated on the surface of the filter is uniformly exported and cleaned. The result of this setting is When filtering, the accumulated waste residues block the filter holes, resulting in poor filtration quality of the polyether defoamer. At the same time, it is difficult to export and clean up a large amount of waste residues at the same time, which is very difficult to deal with

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