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Refined sugar refinery filter mud treatment method

A technology for refining sugar and filtering mud, applied in solid fuel, petroleum industry, fuel and other directions, can solve problems such as environmental impact, increase the economic burden of enterprises, and achieve the effect of increasing calorific value, improving the ability to eliminate sulfur dioxide, and saving costs

Active Publication Date: 2015-12-09
广西糖业集团防城精制糖有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no suitable method for treating the filter mud of refined sugar factories, which is generally used for landfill, which has a certain impact on the environment and increases the economic burden of enterprises.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A method for processing filter mud from a refined sugar factory, comprising the following steps:

[0040]Step 1. After drying the filter mud to a moisture content of 10%, the dried filter mud is obtained, and then the raw coal and the dried filter mud are mixed evenly at a mass ratio of 5:1 to obtain a raw coal mixture of the filter slime; for example , The way to dry the filter mud is to use a drum dryer to dry, which is just a preferred embodiment, but not limited thereto. When implementing the present invention, other embodiments can be adopted according to the needs of users.

[0041] Step 2: Combusting the filter slime raw coal mixture in a circulating fluidized bed boiler. The mixture of filter mud and raw coal is transferred to the circulating fluidized bed boiler as fuel for combustion, turning waste into treasure. It not only treats filter mud, but also eliminates sulfur dioxide, which saves the cost of purchasing calcium carbonate desulfurization for enterpris...

Embodiment 2

[0059] A method for processing filter mud from a refined sugar factory, comprising the following steps:

[0060] Step 1. After drying the filter mud to a moisture content of 15%, the dried filter mud is obtained, and then the raw coal and the dried filter mud are mixed uniformly at a mass ratio of 19:1 to obtain a raw coal mixture of the filter slime; for example The way to dry the filter mud is to use a hot air stove to dry, which is only a preferred embodiment, but not limited thereto. When implementing the present invention, other embodiments can be adopted according to the needs of users.

[0061] Step 2: Combusting the filter slime raw coal mixture in a circulating fluidized bed boiler. The mixture of filter mud and raw coal is transferred to the circulating fluidized bed boiler as fuel for combustion, turning waste into treasure. It not only treats filter mud, but also eliminates sulfur dioxide, which saves the cost of purchasing calcium carbonate desulfurization for ent...

Embodiment 3

[0078] A method for processing filter mud from a refined sugar factory, comprising the following steps:

[0079] Step 1. After drying the filter mud to a moisture content of 12%, the dried filter mud is obtained, and then the raw coal and the dried filter mud are mixed evenly at a mass ratio of 10:1 to obtain a raw coal mixture of the filter slime; for example The way to dry the filter mud is to dry it with a drum dryer after airing until the moisture content is 30%. This is just a preferred embodiment, but it is not limited thereto. According to the needs of the user, other implementation methods are adopted.

[0080] Step 2: Combusting the filter slime raw coal mixture in a circulating fluidized bed boiler. The mixture of filter mud and raw coal is transferred to the circulating fluidized bed boiler as fuel for combustion, turning waste into treasure. It not only treats filter mud, but also eliminates sulfur dioxide, which saves the cost of purchasing calcium carbonate desu...

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PUM

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Abstract

The present invention provides a refined sugar refinery filter mud treatment method, which is characterized by comprising: 1, drying filter mud to achieve a water content of 10-15% to obtain dried filter mud, and uniformly mixing raw coal and the dried filter mud according to a mass ratio of 5-19:1 to obtain a filter mud raw coal mixture; and 2, burning the filter mud raw coal mixture in a circulating fluidized bed boiler. According to the present invention, the filter mud raw coal mixture is placed into the circulating fluidized bed and is burned, such that the filter mud treatment cost of the enterprise can be reduced and avoided, the boiler flue gas sulfur dioxide emission is reduced, the cost of limestone for desulfurization of the enterprise is saved, the corrosion of the acid gas sulfur dioxide on the boiler tubes is avoided, the service life of the boiler is prolonged, and the boiler maintenance cost is reduced.

Description

technical field [0001] The invention relates to a method for treating filter sludge in a refined sugar factory. Background technique [0002] Different from the filter sludge produced by the sulfiting sugar factory, the filter sludge of the sulfiting sugar factory is usually used as a fertilizer because the main component is calcium sulfite and has low alkalinity. Refined sugar production adopts carbonic acid production process. At present, the treatment of filter mud discharged from carbonic acid production process has always been a headache for carbonic acid sugar factories, because the filter mud has high moisture content, high alkalinity, and the main component is calcium carbonate. Its comprehensive value has not been discovered, and manpower and material resources are usually spent for landfill treatment. The increase in treatment costs has also caused environmental pollution. [0003] The filter mud of refined sugar production process is also a kind of alkaline filte...

Claims

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Application Information

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IPC IPC(8): C10L5/48
Inventor 杨宇格黄龙飞杨华刘和清林荣珍
Owner 广西糖业集团防城精制糖有限公司
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