Coke ramp

The invention relates to the coke-chemical sub-branch of ferrous metallurgy and concerns the design of a coke ramp. The purpose of the invention is to simplify the design of the coke oven ramp, to ensure operability of its operation control, as well as to ensure uniformity of loading of the sub ramp conveyor belt. The purpose is achieved by the fact that the unloading platform located under the inclined platform and acting as a gate, is capable of making reciprocating movements, which contribute to the transfer of coke from the inclined platform to the belt of the underframe conveyor.
The unloading platform consists of sections of different lengths, which ensures uniformity of conveyor loading: coke portions coming off the unloading platform are placed on the conveyor belt in a certain order. Several unloading platforms are installed along the inclined platform (according to the number of unloading zones on the inclined platform) and each such platform has its own drive and crank mechanism. In this way it becomes possible to control the ramp operation: to accelerate the unloading of the inclined platform or to exclude some parts of the ramp from operation without stopping the unloading.

The coke ramp is a sloping platform lined with cast-iron (working on average 1 year) or heat-resistant stone slabs (working on average 10 years). The resistance to coke movement on the ramp is sharply reduced when lined with heat-resistant stone castings compared to lining with other materials - heat-resistant cast iron, fireclay bricks or ceramic materials.

The inclination of the ramp is about 28°. The length of the ramp allows to place coke from 4 - 5 furnaces on it. The coke is lowered from the ramp by lifting the sector gates. From the ramp coke gets to the belt or screw conveyor (the bottom of which is also lined with wear-resistant stone slabs), and then through the transfer station to the roller screen of coke sorting.
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