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Fire coal boiler liquid combustion improver

A technology for coal-fired boilers and additives, applied in the field of chain boilers, can solve problems such as restricting the reaction speed of coal combustion, and achieve the effects of speeding up the combustion reaction speed, reducing the concentration of materials, and reducing the height of the boiler

Inactive Publication Date: 2013-08-21
陈颖通
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The low temperature combustion restricts the combustion reaction rate of coal

Method used

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Embodiment Construction

[0011] 1. Addition amount: the mother liquor of the present invention is diluted with a ratio of 1:500, that is, 1 kilogram of mother liquor is mixed with 500 kilograms of water.

[0012] 2. Add a high-level tank before the horizontal conveyor belt of the coal filling port, put the diluted additive into the tank, and spray the additive on the coal with the nozzle while adding coal, but control the total water content in the fuel coal, not exceeding 3 percentage points higher than the original control moisture content.

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Abstract

The invention provides a fire coal boiler liquid oxidant, which is used as a liquid additive for improving heat efficiency of fire coal boiler and realizing combustion supporting and coal saving, thereby minimizing the circulating fluidized bed boiler volume, reducing boiler height, adapting to the status of circulation ratio in our country, accelerating reaction speed of coal combustion, achieving fire coal efficiency and forming a high efficiency combustion method. The invention is used for fluidized bed boiler and chain-grate boiler. The invention employs a principle of catalysis combustion and gasification combustion of coal, and provides a method for adding liquid oxidant in fuel, thereby realizing high efficiency combustion of the fluidized bed boiler in the low temperature condition. The invention is composed of five substances such as potassium nitrate, sodium carbonate, cupric nitrate, magnesium nitrate and manganous nitrate. The invention has the beneficial effects that after the additive is added, the material ratio is decreased with the same output, thereby the coal saving is increased, wherein, the coal saving rate is about 5%, and the boiler output is increased and the boiler thermal efficiency is increased by 2-3%.

Description

technical field [0001] A liquid additive used in coal-fired boilers to improve thermal efficiency and realize combustion-supporting and coal-saving. The present invention is applicable to the fluidized bed boiler and also can be used for the chain boiler. Background technique [0002] In recent years, my country's fluidized bed boilers have developed rapidly, especially circulating fluidized bed boilers, whose thermal efficiency is much higher than that of old-fashioned bubbling fluidized bed boilers. Large-scale and assembly of small and medium-sized boilers. It also increases the boiler cost. One of the reasons is that in order to pursue the burnout of coal, when designing the flow rate in the dense phase zone and the dilute phase zone, it is often necessary to increase the combustion space. Another reason is that the combustion temperature of the fluidized bed boiler is between 850°C and 950°C. It belongs to low-temperature combustion. We know that there is an Arrhenius...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L9/10
Inventor 陈颖通
Owner 陈颖通
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