Combustible solid waste utilization composite burner in cement production

Abstract

The invention discloses a combustible solid waste utilization composite burner in cement production. The composite burner comprises a variety of fuel nozzles and a fuel conveying pipeline connected with the fuel nozzles, wherein the pipeline is connected with a variable frequency fan, the pipeline is a multi-layer surrounding structure, the center layer is a combustible solid waste particle conveying pipeline, an oxygen conveying pipeline surrounds the combustible solid waste particle conveying pipeline, a cyclone conveying pipeline surrounds the oxygen conveying pipeline, a coal powder conveying pipeline surrounds the cyclone conveying pipeline, and a whirlwind conveying pipeline surrounds the coal powder conveying pipeline; combustible solid waste particle spray ports are arranged in the center of the front end surface of the burner, and a plurality of oxygen nozzles are uniformly distributed around the combustible solid waste particle spray ports.

Description

technical field [0001] The invention relates to the combustion and utilization of combustible solid waste in cement production, in particular to a composite burner for the combustion and utilization of combustible solid waste in cement production. Background technique [0002] Cement production is a high-energy-consuming industry. The coal consumption in the building materials industry accounts for nearly 20% of the total thermal coal consumption, and more than 90% of the coal used in the building materials industry is used for cement production. Therefore, how to use solid waste as an alternative fuel in my country is a key issue. The key to reducing coal consumption and saving primary energy. Due to the low calorific value, high water content and poor uniformity of combustible solid waste, it has a greater impact on the production and operation of cement kilns, making it difficult for cement kilns to dispose of combustible solid waste. This restricts the large-scale and in...

AI Technical Summary

Problems solved by technology

my country's use of cement kiln to dispose of solid waste technology develops late, and most of the solid waste is directly fed into the kiln system from the kiln tail preheater, which not only has a great impact on the calcination of the kiln system, but also rarely plays a role. As an alternative to burning coal, some factories not only fail to save coal after disposing of combustible solid waste, but even use more coal. Not only do they fail to save energy, but they increase energy consumption.

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