A kind of chain grate boiler feeding device and method thereof

Abstract

The invention discloses a feeding device for a chain grate boiler and a method thereof. The feeding device comprises a crusher, a sliding track, a hopper, bin partition plates, a bin stop ring, a coal gate, a counter, a controller, a slip ring motor, a dust fuel channel, a screen and a fan. The feeding device is suitable for fuel feeding of the chain grate boiler or a boiler integrating steam, an organic heat carrier and hot air. Fuel is crushed into lumps of a uniform size through the crusher and then falls into the screen; powdery fuel is blown into the dust fuel channel through the fan and then enters a first combustion room first to be combusted; the lumpy fuel falls into the bin, and being stopped by the bin partition plates and the bin stop ring, the fuel is evenly fed onto a grate. Meanwhile, the counter is placed on the bin stop ring, the number of bin partition plates which the fuel passes through is calculated to serve as an input quantity, and opening and closing of the coal gate are controlled through the controller so that the coal gate can be opened when the fuel on the grate reaches a certain quantity. The use method of the feeding device is simple, the combustion efficiency of the boiler is improved, and black smoke and dust are reduced.

Description

technical field [0001] The invention relates to a boiler feeding device, in particular to a chain grate boiler feeding device and a method thereof. Background technique [0002] In response to the country's call for energy conservation and environmental protection, we advocate the use of environmentally friendly recycled fuel as boiler fuel. These fuels usually have uneven particles, and there are powdery fuels and large block fuels at the same time. The traditional boiler feeding method is the gravity coaling method, that is, the fuel is directly put into the hopper and burned through the grate. This method is unscientific. The fuel in the hopper is put directly on the grate to compact the fuel, and the dense fuel layer has a large ventilation resistance, which restricts air from entering the fuel layer, resulting in oxygen-deficient combustion and disordered fuel blocks. distribution, reducing combustion efficiency. [0003] At the same time, in the case of not controlli...

AI Technical Summary

Problems solved by technology

This method is unscientific. The fuel in the hopper is put directly on the grate to compact the fuel, and the dense fuel layer has a large ventilation resistance, which restricts air from entering the fuel layer, resulting in oxygen-deficient combustion and disordered fuel blocks. distribution, reducing combustion efficiency

[0003] At the same time, if the rate of fuel input is not controlled, it is easy to cause the burning hopper phenomenon, that is, when the boiler is shut down due to factors such as compliance or overpressure during use, the fuel will quickly ignite the fuel in the fuel hopper.

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