Method for generating electricity by burning wet coal ash from Ender furnace

Abstract

The invention relates to a method for generating electricity by burning wet coal ash from an Ender furnace. Through a wet coal ash preparation process 1, an intense wet coal ash stirring process 2, a wet coal ash screening process 3, a water-adding slurrying process 4, a pipe conveying process 5 and a process 6 for adding the wet coal ash into a cyclic fluidized bed boiler to participate in combustion, the wet coal ash slurry is added into the boiler and burned with boiler fuels together so as to obtain heat for generating the electricity. The method can use the wet coal ash generated by the Ender furnace as a fuel to burn in the cyclic fluidized bed boiler so as to generate the electricity, realizes the full utilization of the wet coal ash, reduces discharge, environment pollution and occupied land resources, and achieves dual effects on energy conservation and environmental protection. The method also can utilize carbon-containing wastes such as coal with low thermal value, coal slurry, organic sludge and the like, and is applicable to generating the electricity by the fuels with low thermal value.

Description

technical field [0001] The invention relates to a method in the field of thermal energy equipment and the field of thermal energy utilization, in particular to a method for generating electricity by burning wet coal ash in an Ende furnace. Background technique [0002] At present, the coal slime blended into circulating fluidized bed boilers by most domestic enterprises is produced in the process of coal mining or coal washing in coal mines and coal plants. %above. In addition to coal slime, pulp waste liquid, organic sludge, etc. can be blended into the circulating fluidized bed furnace, and the transportation method of blended combustion is basically a mature coal slime transportation technology. [0003] The coal gas of Ende pulverized coal gasifier produces a large amount of low calorific value wet coal ash during the purification and washing process, of which the carbon content is about 30%, and the calorific value is 1800-2300kal / kg. If it is not fully utilized, it w...

AI Technical Summary

Problems solved by technology

In this method, the wet coal ash is stirred and screened and transported to the fluidized bed boiler for combustion, so as to solve the technical problem of using the heat obtained by the combustion of wet coal ash to generate electricity

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