Oxygen-enriched combustion-supporting and pulverized coal pure-oxygen compensation energy conservation system of rotary kiln

Abstract

The invention relates to an oxygen-enriched combustion-supporting and pulverized coal pure-oxygen compensation energy conservation system of a rotary kiln. The system comprises a dry-process rotary kiln combustion system, a PLC (programmable logic controller) smart system, a magnetic energy oxygenerator and a liquid oxygen storage tank, the output end of the magnetic energy oxygenerator is connected with a pressure regulating system, the pressure regulating system is connected with a kiln head coal-injection duct terminal of the dry-process rotary kiln combustion system through an oxygen supply pipe, the output end of the liquid oxygen storage tank is connected with the input end of a gasifier, the output end of the gasifier is connected with the input end of a booster pump, the output end of the booster pump is connected with a pure oxygen heater, the pure oxygen heater is connected with the kiln head coal-injection duct terminal and a decomposition kiln coal-injection duct terminal through oxygen supply pipes, and the magnetic energy oxygenerator, the pressure regulating system, the liquid oxygen storage tank, the gasifier and the booster pump are all connected with the PLC smart system. The system is used on a cement dry-process rotary kiln to guarantee sufficient calcinations, benefit is increased, emission is reduced, energy is saved, and one of oxygen-enriched combustion methods of the dry-process rotary kiln is advanced and satisfactory.

Description

technical field [0001] The invention belongs to the field of rotary kilns, and in particular relates to an oxygen-enriched combustion-supporting, pulverized coal pure oxygen compensation and energy-saving system for a rotary kiln. Background technique [0002] Cement production line is an industry with high energy consumption. In the process of cement production, calciner and rotary kiln are the main equipment for calcining cement clinker. Carbonates such as limestone are further decomposed in calciner and rotary kiln and undergo a stock reaction. If it cannot be fully calcined, it will result in poor quality of cement products, low output, waste of energy and aggravation of pollution. Contents of the invention [0003] The object of the present invention is to provide an energy-saving system with high production efficiency, low energy consumption and sufficient calcination for oxygen-enriched combustion and pulverized coal pure oxygen compensation in a rotary furnace. ...

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Problems solved by technology

[0002] Cement production line is an industry with high energy consumption. In the process of cement production, calciner and rotary kiln are the main equipment for calcining cement clinker. Carbonates such as limestone are further decomposed in calciner and rotary kiln and undergo a stock reaction. If it cannot be fully calcined, it will result in poor quality of cement products, low output, waste of energy and aggravation of pollution.

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