A method for co-processing waste power generation in cement plants

Abstract

The invention discloses a method for generating power through cooperative garbage disposal of a cement plant. The method includes the following steps that garbage is placed into a garbage storage pit, garbage leachate is qualified and reused after being processed by means of a biofilm process, stink in the storage pit is led into a raw material decomposing furnace and decomposed in a harmless way at high temperature, and the garbage is conveyed into a grate furnace for combustion; after heat of flue gas generated by combustion is absorbed in a waste heat boiler through a cooling wall, an evaporator, an overheater and the like, generated steam is input into a turbine generator, the flue gas after heat exchange is input into a flue gas purifying device, the flue gas is exhausted from a chimney, furnace slag is input into a clinker admixture bin, and fly ash generated by flue gas purification is input into a raw material homogenization silo. The method solves the problems that in the prior art, quality of cement finished products is influenced, the garbage can not be disposed during the overhaul process of cement production equipment, dioxin in the flue gas exceeds standards, the stink in the storage pit is not treated, and public and auxiliary facilities of the cement plant do not fully cooperate.

Description

Technical field [0001] The invention relates to a garbage power generation method, in particular to a method for co-processing garbage power generation by a cement plant. Background technique [0002] The prior art directly throws municipal domestic waste into the cement plant for incineration or the flue gas after incineration enters the cement plant calciner. The disadvantages are as follows: [0003] 1. Cl in flue gas -1 Ions affect the quality of cement clinker products, such as Cl -1 The ion content is as high as 0.6%, exceeding the national cement finished product standard cl -1 Ion ≦ 0.014%. [0004] 2. Cause the refractory materials in the furnace of the cement suspension plant to crust and fall off. [0005] 3. After incineration of domestic waste, the flue gas enters the cement raw meal decomposing furnace. Although the dioxin in the flue gas is decomposed at a high temperature of 900 ℃ in the decomposing furnace, it will still re-accumulate as the flue gas temperature decre...

AI Technical Summary

Problems solved by technology

The method solves the problem that the existing technology affects the quality of cement products; solves the problem that the garbage cannot be disposed of during the maintenance of cement production facilities in the prior art; solves the problem that the dioxin in the flue gas actually exceeds the standard in the prior art; solves the problem of Prior art garbage storage pit odor (CH 4 、H 2 S) Unresolved problems; solved the problem that the existing technology affects the calciner; solved the problem that the existing technology does not fully cooperate with the public and auxiliary facilities of the cement plant

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