Sodium-removing purification cyclic system of high-sodium coal

A circulation system and high-sodium coal technology, applied in the petroleum industry, solid fuel, fuel, etc., can solve the problems of reducing the calorific value of coal-fired boilers in the service life of boilers, increasing construction investment and power plant operating costs, and achieving coking in the furnace. The effect of improving the pollution problem of the heating surface, small investment and safe operation

Inactive Publication Date: 2012-07-04
SHANGHAI YUANMENG ELECTRIC POWER ENERGY TECH CONSULTING CENT
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Problems solved by technology

[0006] In order to use Zhundong high-sodium coal for power generation, there is another other blending method: if a certain amount of silicon or aluminum oxide is mixed, the ash melting point of combustion in the furnace can be adjusted, and Zhundong high-sodium coal can be used more. The burning of coal in th...

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  • Sodium-removing purification cyclic system of high-sodium coal
  • Sodium-removing purification cyclic system of high-sodium coal

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[0038] like figure 1 As shown, the high-sodium coal desodium purification circulation system of the present invention mainly includes a circulating water heater 1 connected by a circulation pipeline, a raw coal purification device 2, a mixing reaction device 3, a coal-liquid separation device 4, a waste water treatment device 5, a degassing Sodium coal drying device 6 and steam heating source 7, wherein, the input end of circulating water heater 1 receives circulating water and make-up water, and receives the extracted steam from steam heating source 7 to heat the water, and the output end of circulating water heater 1 is connected with raw coal purification The device 2 is connected; the input end of the raw coal purification device 2 receives the hot water output by the circulating water heater 1 and the pulverized high-sodium raw coal, and the washing liquid and steam are respectively input through the mixing reaction device 3 and the steam heating source 7, and the raw coal...

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Abstract

The invention discloses a sodium-removing purification cyclic system of high-sodium coal. The system comprises a circulating water heater, a raw coal purification device, a mixing reaction device, a coal liquid separation device, a wastewater treatment device, a sodium-removing coal drying device and a steam heating source. The cyclic system heats water by utilizing a power plant heat source, andpurification and sodium removal are carried out on the raw coal through water circulation, thus good coal quality is reached, and the effects of saving water and the like are reached.

Description

technical field [0001] The invention relates to a purification and quality improvement technology for low-quality coal power generation, in particular to a high-sodium coal desodium purification circulation system. Background technique [0002] High-sodium coal refers to a special type of coal with a high content of alkali metal compounds in coal. Among all kinds of alkali metal compounds, sodium-based compounds are generally in the majority, so it is called "high-sodium coal". At present, my country's high-sodium coal is mainly concentrated in the Zhundong coalfield in the eastern part of the Junggar Basin in Xinjiang. Zhundong Coalfield has a predicted reserve of 390 billion tons of resources, and the current cumulative proven reserves of coal resources are 213.6 billion tons. The coal-forming area of ​​the coalfield is 14,000 square kilometers. It is currently the largest integrated coalfield in my country. Based on the current annual coal production in my country, one ...

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Application Information

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IPC IPC(8): C10L9/00C10L9/02
Inventor 施大钟
Owner SHANGHAI YUANMENG ELECTRIC POWER ENERGY TECH CONSULTING CENT
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