Different gravity circulating fluidized bed boiler

Abstract

The invention relates to a density circulating fluidized bed boiler. The density circulating fluidized bed boiler comprises a hearth, wherein a connecting hole is formed in a side wall of the hearth; a steel pipe is obliquely fixed in the connecting hole; the top of the steel pipe is movably connected with a sealing cap; the middle of the steel pipe is fixedly connected with an air duct; and the air duct is provided with a control device which controls the air duct to supply air to the inside of the hearth. The density circulating fluidized bed boiler has the advantages that high-pressure air is blown into the hearth by using the control device of the air duct, high-temperature smoke in the hearth cannot spray out from the inside of the steel pipe easily, so that operators can remove residual iron wires bundled together in the hearth by using the steel pipe, the efficiency of treating sprayed residues caused by the bundled iron wires on the boiler is improved, the labor capacity is low, continuous, long-periodic and normal running of the boiler is effectively guaranteed, and the safety performance and the practicality are high.

Description

technical field [0001] The invention relates to a different gravity circulating fluidized bed boiler. Background technique [0002] Boilers are suitable for the incineration of various types of domestic waste. The existing collection of domestic waste does not adopt the method of classification, resulting in non-combustible strips such as iron wires in the waste, and there are often some industrial waste in the domestic waste. Although The domestic garbage entering the boiler has been sorted by iron remover and manual sorting, but since the iron wire and iron bars in the bags and some packaging bags cannot be taken out, and the iron wire entangled with the garbage cannot be taken out, if one kilogram of iron wire per ton of garbage is calculated, Then 500 tons of garbage a day has a total of 500 kilograms of iron wire. Under the action of the primary wind inside the boiler furnace, a large amount of iron wire hangs in a group on the wind cap, causing the boiler to fail to di...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that when the existing boiler incinerates garbage, the incinerated garbage iron wire is not easy to get rid of, resulting in the failure of the boiler to discharge slag normally and poor practical performance, thereby providing a solution for the treatment of the different gravity circulating fluidized bed boiler in operation The iron wire in the furnace does not need to stop the furnace, which ensures the continuous and uninterrupted normal operation of the boiler, improves the economy and safety of the boiler, and also solves the problem that such boilers cannot guarantee continuous heating.

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