Boiler coke preventing and eliminating agent

Abstract

The invention discloses a boiler coke preventing and eliminating agent by taking kaolin as the main raw material. The boiler coke preventing and eliminating agent comprises the following compositions in mass percent: 1-99.9% of kaolin, 0.05-98% of alumina compound, 0.01-20% of titanium compound, 0.01-50% of magnesium compound, 0.01-30% of calcium compound and 0.001-5% of copper compound. The boiler coke preventing and eliminating agent is correspondingly added to fuel, the melting point of a combustion product is directly increased, and the coking and contamination of molten combustion product on a hearth and a heated surface are effectively relieved in the high-temperature combustion process of the fuel.

Description

technical field

[0001] The invention relates to an anti-coking and decoking agent, in particular to a boiler anti-coking and decoking agent with kaolin as the main raw material. technical background

[0002] When coal-fired utility boilers burn, the minerals in the coal form soot. Due to the high thermal intensity, high combustion temperature and low ash melting point of coal-fired boilers, coal ash in molten and semi-molten state usually deposits and sticks on the heating surface of the boiler in the form of coking and contamination. Once slagging and contamination are formed, due to the low thermal conductivity of ash and slag, it will reduce the heat absorption in the boiler furnace, which will not only reduce the thermal efficiency of the boiler, but also limit the load of the boiler, thereby destroying the overall heat balance process in the furnace, and even causing forced Accidents of boiler shutdown directly affect the safety, economy and reliability of boiler opera...