Phosphoric acid adding system in sugarcane sugar manufacturing process

Abstract

The invention discloses a phosphoric acid adding system in sugarcane sugar manufacturing process. The phosphoric acid adding system comprises a solution tank, a mixer, a mixed juice tank, and a metering pump; the solution tank is provided with a stirrer; the lower part of the solution tank is connected with the metering pump via a pipeline; the metering pump is connected with the mixer arranged on the upper part of the mixed juice tank via a pipeline; the lower part of the mixed juice tank is connected with a clarification workshop via a pipeline provided with a mixed juice pump; the pipeline between the solution tank and the metering pump is provided with a No.7 ball valve, a Y-shaped filter valve, and a No.5 ball valve successively; the pipeline between the metering pump and the mixer is provided with a pressure meter, a No.3 ball valve, and a back pressure valve; the pipeline between the mixed juice pump and the clarification workshop is connected with the pipeline between the back pressure valve and the mixer via the pipeline provided with a No.4 ball valve; the pipeline between the pressure meter and the No.3 ball valve is connected with a sampling or exhausting pipe; the sampling or exhausting pipe is provided with a No.2 ball valve. The phosphoric acid adding system is capable of realizing accurate and stable adding of phosphoric acid in sugar manufacturing process, increasing white granulated sugar product quality, and reducing production cost.

Description

technical field [0001] The invention relates to the technical field of sugar-making equipment in a sugarcane sugar factory, in particular to a phosphoric acid addition system in a sugarcane sugar-making process. Background technique [0002] Phosphoric acid is a raw material often used in chemical industry, light industry and food production process. It is mainly used to adjust the acidity of materials, and some are used as clarifiers. The clarification process is to use the insoluble characteristics of some organic substances such as sucrose, cane wax, starch, pectin, some polysaccharides and polyphenols in the cane juice under low temperature conditions, add phosphoric acid, a small amount of Lime milk, flocculant and air bubbles, using coagulation, floating and adsorption to remove a large amount of organic non-sugar under neutral conditions; then use carbonic acid clarification process to remove pigment and other non-sugar in sugar juice share. [0003] In the process ...

AI Technical Summary

Problems solved by technology

At present, sugarcane sugar factories generally use valves to control the flow rate to add phosphoric acid. The added flow rate is very uneven and unstable, which has a great impact on the quality of white granulated sugar.

Although some sugar factories use some metering equipment to add, they have not fully considered the design of the system and the configuration of accessories, and the use of metering equipment alone cannot play a role in stabilizing the addition

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