Novel heavy duty frame stressing layering coal supply apparatus

Abstract

The invention discloses a novel heavy type frame stress type layered coal feeding device. According to the principles of engineering mechanics and granular media mechanics of fuel coal , the invention solves the problems that in the prior layered coal feeding device of an industrial chain grate boiler for integrated heat supply at home, the working condition of combustion in the boiler is directly influenced; the strength of structural design is deformed; a coal poking roller is deformed; a coal flashboard is heated and deformed; the transverse thickness of a coal burning layer is out of control; and the adjustment of synchronous combustion is out of control. A frame stress structure, an automatic coal scraping and roller cleaning device for an externally and internally-built two-level segmented independent coal poking roller, an automatic adjusting device for the thickness of a fuel coal layer, a device for sectionally and independently adjusting and controlling the thickness of the coal layer, a combined frame structure of a single coal poking roller, a coal roller for breaking frozen coal blocks and transporting coal in a cold region, a sub-caging and layering device and other technologies are adopted to form the novel heavy type frame stress type layered coal feeding device.

Description

technical field [0001] The novel heavy-duty frame force-type layered coal feeding device of the present invention is a new type of heavy-duty frame force-type layered coal feeding device for large-scale central heating above (70-112MW), industrial chain grate boilers, and reciprocating grate boilers. device. It belongs to the technical field of the international patent classification F22B steam boiler. technical background [0002] China is a country that uses coal as the main energy source. At present, due to the needs of the development of energy saving and emission reduction in the domestic industrial boiler market, heavy-duty large-tonnage chain grate boilers are the replacement products for most small and medium-sized boilers because of their energy saving and high efficiency. At present, the layered coal feeding device matched with the boiler will gradually develop to a larger standardization. However, in most domestic manufacturing enterprises, basically no one has ...

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Problems solved by technology

[0003] The new type of heavy-duty frame-loaded layered coal feeding device of the present invention is to solve the current domestic layered coal feeding device for central heating and industrial chain grate boilers; the structural design can not directly affect the boiler combustion conditions. Strength deformation, thermal deformation of coal ram, out of control of lateral thickness of coal seam, and out of control of synchronous combustion regulation

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