Sugar refining clarification clean production process

Abstract

The invention relates to a sugar refining clarification clean production process which comprises the following steps: firstly, feeding mud juice of a settling pond into a filtering cloth free vacuum suction filtration machine, filtering and separating under the action of the filtering cloth free vacuum suction filtration machine so as to obtain filtrate and filtered mud, using the filtered mud as a raw material of a composite fertilizer or directly supplying to farmers to be used as a base fertilizer, feeding the filtrate into a rapid filtrate settling system, further performing solid-liquid separation under the action of a flocculant, thereby obtaining sugar juice and mud juice, feeding back the obtained mud juice to the filtering cloth free vacuum suction filtration machine for further filtration, feeding the obtained sugar juice into a clear juice tank for treatment, and feeding the treated clear juice into an evaporation tank for evaporation concentration. The sugar refining clarification clean production process has the characteristics of small pollution discharge, low consumption, high efficiency and cost reduction.

Description

technical field [0001] The invention belongs to the technical field of sugar making process and relates to a clarified and clean sugar making process. Background technique [0002] Since the reform and opening up, my country's national economy has achieved rapid development, but with the development of the national economy, the discharge of pollutants is increasing day by day, the contradiction between economic development and environmental pollution is becoming more and more serious, and the voice of environmental protection is getting louder and louder. In recent years, the Party Central Committee and the State Council have attached great importance to energy conservation, emission reduction, and environmental protection, and have successively issued a series of policy measures, putting forward clear guiding ideology and development goals for energy conservation, pollution reduction, and clean production. Implementing the national energy-saving emission reduction clean pro...

AI Technical Summary

Problems solved by technology

However, there are the following disadvantages in the ring-belt vacuum suction filter with filter cloth: 1. The dry filter mud has a high degree of luminosity, and the loss of sugar is serious; 2. The filter cloth needs to be removed and cleaned regularly to ensure its filtering capacity, which will increase labor. Intensity, will also produce a large amount of washing water containing sucrose, suspended solids and other organic pollutants, increasing the cost of sewage treatment

In the above several processes, the secondary sedimentation treatment of the filtered juice backflow sedimentation tank will increase the burden of the sedimentation tank, and will increase the residence time of the sugar juice, resulting in a certain sugar conversion, and the color value of the clear juice will increase; the air flotation cleaning method process Complex, difficult to control stably, and the one-time investment is too large, and the operation and maintenance costs are high

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