Special antisludging agent for saline-alkali soil bitter desalting plant and preparation method therefor

Abstract

The invention provides a special antisludging agent for saline-alkali soil bitter desalting plant and a preparation method therefor. The antisludging agent comprises the following components in parts by weight: 30-34 parts of chlorogenic acid, 8-9 parts of sodium lignin sulfonate, 8-10 parts of citric acid, 7-9 parts of malic acid, 2-4 parts of gallotannic acid, 3-4 parts of polyepoxysuccinic acid, 1-2 parts of dimethyl sulfoxide, 2-4 parts of tetradecyl dimethyl benzyl ammonium, 0.5-1.5 parts of allyl polyether and 48-50 parts of deionized water. The preparation method of the antisludging agent comprises the step of chlorogenic acid dissolution: adding chlorogenic acid into deionized water, stirring for dissolution, enabling the rotation speed to be 80 rpm, and stirring for 12-15 minutes. The preparation method of the antisludging agent also comprises the steps of melting sodium lignin sulfonate and allyl polyether: enabling the melting temperature of sodium lignin sulfonate and allyl polyether to be 70-80 DEG C. The scale inhibiting ratio is 96.2% to 98.8% by adopting the antisludging agent.

Description

technical field [0001] The invention belongs to the technical field of salt water desalination, and relates to a special scale inhibitor for brackish water desalination equipment, in particular to a special scale inhibitor for brackish water desalination equipment in saline-alkali land and a preparation method thereof. Background technique [0002] The brackish water desalination equipment is carefully analyzed and specially designed according to the local water quality, and strives to be efficient and durable, and to make the desalinated water quality fully meet the standard of irrigation water quality. To ensure that the most reasonable and economical configuration is designed to achieve the best processing effect. [0003] In order to prevent the formation of insoluble inorganic salts due to the concentration of salt water in the process of salt water desalination, scaling and precipitation on system pipes and corrosion of equipment components, scale inhibitors should be ...

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Problems solved by technology

[0005] The scale inhibitors of the prior art have the following defects and deficiencies: the scale inhibition rate of the scale inhibitors of the prior art used in the brackish water desalination equipment is low; the corrosion rate of the brackish water to the brackish water desalination equipment is high; Desalination equipment is easily corroded and has a short service life

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