Sugar-manufacturing single-layer precipitator control system

Abstract

The invention relates to a sugar-manufacturing single-layer precipitator control system. The sugar-manufacturing single-layer precipitator control system comprises a precipitator and a control system, wherein a clear juice output pipeline is arranged at the upper part of the precipitator, and a mud juice output pipeline is arranged at the bottom of the precipitator; the control system comprises a liquid level sensor capable of testing and sensing the liquid level height of the precipitator, a clear juice regulating valve capable of controlling the flow rate of clear juice, and a controller for regulating the effective flow area of the regulating valve according to the liquid level feedback of the liquid level sensor; the controller realizes the control over liquid level height by regulating the opening of the clear juice regulating valve and then controls the hydraulic retention time of cane juice in the precipitator. The sugar-manufacturing single-layer precipitator control system can realize stepless control of sulphitation and neutralization reaction time, so that the hydraulic retention time is maintained in a certain range value, the clear efficiency of the cane juice is improved, and then the quality of the clear juice is guaranteed.

Description

【Technical field】 [0001] The invention relates to the field of solid-liquid separation equipment for sugar juice suspension in a sugar factory, in particular to a single-layer settler control system for sugar production. 【Background technique】 [0002] As the solid-liquid separation equipment in sugar production, the settler plays an important role in the production. The quality of clear juice has a great influence on the quality of white sugar and the recovery rate of scouring. The existing design of the settler mainly considers the solid-liquid separation function, that is, as long as the clear juice after solid-liquid separation is clear and bright, it can meet the production standard, and the role of the settler in the chemical reaction of sugar production is not fully considered. [0003] The sulfite clarification process mainly relies on the reaction of sulfur dioxide and lime. The calcium sulfite formed by the two adsorbs the impurities in the sugarcane juice and form...

AI Technical Summary

Problems solved by technology

The Chinese patent No. 200920164721.0 applied by the inventor is a single-layer settlement system for sugar juice with adjustable liquid level, which changes the single-layer juice output of the single-layer settler to multi-layer juice output. Although this has been improved, the liquid level It can only be fixedly adjusted to a fixed juice layer, that is, it can only realize the hierarchical control of the hydraulic retention time, and cannot realize the stepless adjustment of the liquid level, which makes the production lack a key process control means

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