Kiln loading system of feeding solid alternative fuel into cement kiln

Abstract

The invention discloses a kiln loading system of feeding a solid alternative fuel into a cement kiln and relates to the technical field of alternative fuels. The kiln loading system comprises a storage cabin (a movable floor conveying system), a first spiral conveying system, a continuous lifting system, a belt conveying system, a hopper system, a second spiral conveying system, a material swing trough system, a decomposition furnace system and an automatic control system. The output end of the storage cabin (the movable floor conveying system) is in abut joint to the input end of the first spiral conveying system, the output end of the first spiral conveying system is in abut joint to the continuous lifting system, the output end of the continuous lifting system corresponds to the input end of the belt conveying system, and the output end of the belt conveying system corresponds to the input end of the hopper system. The kiln loading system not only can guarantee continuous conveyanceof feeding the solid alternative fuel into the kiln to improve the conveying capacity of the alternative fuel greatly and guarantee the stability of the furnace temperature of the cement kiln, but also can control the proportion of the alternative fuel fed into the kiln automatically, so that the quality of a cement product is guaranteed.

Description

technical field [0001] The invention relates to the technical field of alternative fuels, in particular to a kiln feeding system for feeding solid alternative fuel into a cement kiln. Background technique [0002] Combustible solid waste, as a large category of solid waste, covers various types, including: municipal solid waste, municipal sludge (and some industrial sludge), commercial and industrial solid waste (cloth scraps, panel processing scraps, leather processing leftovers, packaging waste, bulky garbage, waste plastics, waste paper, etc.), these solid wastes with a certain calorific value, through certain sorting, crushing and / or molding, are prepared into garbage individually or according to a certain ratio Refuse Derived Fuel (RDF) / Solid Recovered Fuels (SRF) / Alternative Fuels (AF), etc., are used for cement kiln alternative fuels, incineration power generation or auxiliary fuels. [0003] Co-firing solid alternative derived fuels in cement kilns has obvious econo...

AI Technical Summary

Problems solved by technology

Since the grab equipment is a non-continuous conveying equipment, and the conveying stroke and the empty return journey are very long, the conveying capacity of the grab equipment is greatly reduced, and it is difficult to ensure the normal supply of materials to the high silo, which greatly restricts the scale of processing alternative fuels. Moreover, the component uniformity of alternative fuels is relatively poor, and the working conditions of cement kilns have relatively strict requirements on components, so it is necessary to be able to adjust the feed amount at any time

The existing conveying method is relatively mechanical, and the degree of automation is low. The continuous conveying and conveying capacity of alternative fuels into the kiln has become an important factor restricting the scale of coal used by cement kilns for combustible solid substitution.

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