Grouting material containing circulating fluidized bed fuel coal solid sulfur ash

Abstract

The invention discloses a grouting material containing circulating fluidized bed fuel coal solid sulfur ash. The grouting material containing the circulating fluidized bed fuel coal solid sulfur ash is characterized by comprising the following components in percentage by mass: 10 to 25 percent of solid sulfur ash, 23 to 35 percent of cement, 40 to 55 percent of sand, 0.2 to 0.8 percent of water-reducing agent, 9 to 15 percent of water, 0 to 10 percent of expanding agent and 0 to 1 percent of defoaming agent. The grouting material adopts industrial waste solid sulfur ash as an admixture, utilizes the cinerite activity and the expanding performance of the solid sulfur ash, changes waste into treasure, is low in cost, reduces environmental pollutions, and has a simple production process, low energy consumption, excellent product performance and high practicability.

Description

technical field

[0001] The invention belongs to mortar containing sulfur-fixing ash and Portland cement, and relates to a grouting material containing coal-fired sulfur-fixing ash in a circulating fluidized bed. It is suitable for grouting materials mainly prepared from waste sulfur-fixed ash. Background technique

[0002] Circulating fluidized bed combustion (CFBC for short) technology is an advanced clean coal combustion technology that fixes sulfur during the combustion process. It has wide adaptability to coal types, high combustion efficiency and sulfur fixation efficiency, and good load regulation performance. Low cost of sulfur fixation, etc., can effectively reduce coal-fired sulfur dioxide and NO X emissions, reduce air pollution, and benefit environmental protection, and have been vigorously developed and promoted. Circulating fluidized bed (CFB) coal-fired sulfur-fixed ash is solidified when coal is burned in a fluidized bed coal-fired boiler using circulating f...

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