Method for preparing desulfurizer from coal slag

Abstract

The invention discloses a method for preparing a desulfurizer from coal cinder, which comprises the following steps: firstly, placing the coal cinder into a soaking pool, and filling soaking water for soaking; and secondly, detecting the pH value of a soak solution after soaking in the soaking water, and generating the desulfurizer which can be directly poured on coal to be combusted when the detected pH value reaches more than 12. By adoption of the method to prepare the fuel coal desulfurizer, not only the coal cinder generated by coal combustion in various coal combustion yards can be fully utilized but also the prepared desulfurizer has strong desulfurization effect on flue gas generated by coal combustion, realizes reutilization of waste coal cinder, saves the desulfurization cost, reduces resource waste, and simultaneously can also simplify the desulfurization technology and reduce the cost of the desulfurizer and equipment.

Description

technical field [0001] The invention relates to a method for making a desulfurizer, in particular to a method for making a desulfurizer by using coal slag. Background technique [0002] In power plants or other large coal-fired enterprises, in order to reduce pollution emissions, the flue gas needs to be desulfurized during the coal-fired process. There are various coal-fired desulfurization processes, such as limestone-gypsum flue gas desulfurization process, Rotary spray drying flue gas desulfurization process, ammonium phosphate fertilizer method flue gas desulfurization process, calcium spray tail humidification flue gas desulfurization process, flue gas circulating fluidized bed desulfurization process, water curtain dedusting process, etc., the above existing desulfurization methods exist Either the cost of desulfurization agent or desulfurization equipment is high, or the desulfurization effect is poor, or the whole set of treatment process is relatively complicated. ...

AI Technical Summary

Problems solved by technology

[0002] In power plants or other large coal-fired enterprises, in order to reduce pollution emissions, the flue gas needs to be desulfurized during the coal-fired process. There are various coal-fired desulfurization processes, such as limestone-gypsum flue gas desulfurization process, Rotary spray drying flue gas desulfurization process, ammonium phosphate fertilizer method flue gas desulfurization process, calcium spray tail humidification flue gas desulfurization process, flue gas circulating fluidized bed desulfurization process, water curtain dedusting process, etc., the above existing desulfurization methods exist Either the cost of desulfurization agent or desulfurization equipment is high, or the desulfurization effect is poor, or the whole set of treatment process is relatively complicated, etc.