Fire stirring device

Abstract

The invention discloses a fire stirring device which comprises fire stirring rods and a straight tooth arranged on the fire stirring rods, wherein the fire stirring rods are arranged at two sides of a furnace wall, one end of each fire stirring rod is connected with a host machine, the host machine comprises an intelligent numerical control power device and a forced circulating cooling system, the intelligent numerical control power device controls the parallel moving of the fire stirring rods in a furnace and ensures that the fire stirring rods turn, each fire stirring rod comprises a main rod outer tube and a main rod inner tube, supporting block members are arranged between the main rod inner tubes and the main rod outer tubes at intervals, the straight tooth comprises a tooth outer tube and a tooth inner tube, and the main rod inner tubes and the main rod outer rods as well as the tooth inner tube and the tooth outer tube are respectively communicated with the forced circulating cooling system. The fire stirring device has the characteristics of avoiding high temperature ablation and coking, dynamically stirring fire in multiple regions, being capable of being applied to a large furnace, being safe and reliable, and having strong adaptability on coal variety.

Description

technical field [0001] The invention relates to an energy-saving technological transformation of a chain boiler, in particular to a multi-zone dynamic fire poker device capable of avoiding high temperature ablation, capable of intelligent flipping and straight tooth cooling. Background technique [0002] Coal-fired chain boilers are one of the main coal utilization methods in my country, and are widely used in heating and industrial production processes. The annual coal consumption of my country's industrial boilers is about 600 million tons, which is about 30% of the country's total coal consumption. It is the largest coal consumer after power plant boilers. The total amount of industrial boilers in my country is about 600,000 units, and it is still growing at a rate of 5% every year. Among all kinds of industrial boilers, 65% are chain furnaces, 20% are reciprocating grate furnaces, 10% are fixed grate furnaces, 3-5% are circulating fluidized bed boilers, and other types ...

AI Technical Summary

Problems solved by technology

The main reason for the low thermal efficiency of the boiler is its own combustion method: the chain furnace adopts static combustion, manual ignition, the fuel and combustion air cannot be fully mixed, the combustion efficiency is low, and the carbon content of the cinder is high

[0004] Although some fire poking devices have appeared in recent years, there are mainly two types: one is passive poking fire, which has poor poking effect; The range is limited and it is mainly used for small furnaces. For large chain furnaces, the rod body is severely coked and ablated, which makes it unusable and has poor safety performance.

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