Anti-scaling agent for brine pipeline and preparation method thereof

Abstract

The invention provides an antiscale agent for a brine transportation pipeline. The antiscale agent is prepared from starch phosphate, sodium lignin sulfonate, gluconic acid-malic acid-sodium pyrophosphate telomere and purified water according to a certain proportion. When the antiscale agent is used by three domestic salt plants, it is proved that undissolved salt crystals can be effectively prevented from being produced by high-concentration Ca2+ and Mg2+ in original brine after the antiscale agent is added to the original brine conveyed by the pipeline, and therefore it is avoided that when scales are produced by Ca2+ and Mg2+ in the pipeline for conveying the original brine, brine is not smoothly conveyed by the pipeline, the brine conveying resistance is eliminated, the brine mobility is improved, the brine conveying efficiency is effectively improved, and energy consumption is lowered; after long-term use, the agent has a certain effect on cleaning away existing scales. Meanwhile, non-toxic and harmless food additives are selected as the raw material, the residual antiscale agent in finished salt only accounts for one thousandth of the permissible dose in food, and human health is not influenced after the antiscale agent is eaten.

Description

technical field [0001] The invention relates to an anti-scaling agent, in particular to an anti-scaling agent for raw brine production from brine mining and transporting brine, which belongs to the field of salt industry production. technical background [0002] In the production of industrial brine mining, the raw brine extracted from underground salt mines is transported to the production workshop through the brine pipeline for refining. Due to the high concentration of Ca in the original brine 2+ , Mg 2+ , It is very easy to form process dirt in the original brine pipeline, which will increase the resistance of pipeline brine transmission, increase energy consumption, affect normal production, and need to stop production for cleaning and descaling, which is difficult and expensive to clean. [0003] Chinese patent application 201210311208.6 discloses a brine pipeline scale inhibitor, which is composed of hydroxyethylene diphosphoric acid, acrylic acid-2-acrylamide-2-met...

AI Technical Summary

Problems solved by technology

Because the formula of this patent contains toxic chemical raw materials, the toxic raw materials will remain in the finished salt product after adding the original brine, and long-term consumption will affect human health; in addition, the raw materials of this patent contain nitrogen, and the residual nitrogen in the finished salt When the saturated brine is electrolyzed in the chlor-alkali plant, it will cause the enrichment of nitrogen trichloride, which will bring safety hazards to production