Hopper for predried fine coal carried on hopper trucks for cokin

Distillation: apparatus – Apparatus – Elements

Patent

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Details

C10B 3104

Patent

active

040240240

ABSTRACT:
A hopper for predried fine coal for use with a coke oven battery or a plurality of batteries arranged in a row, comprises a wheeled support truck which is adapted to be moved along over the top of the oven batteries. A fine coal hopper is mounted on the truck and it includes a bottom discharge to facilitate discharging of the fine coal therethrough into the individual batteries. An inert gas system is connected to the fine coal hopper and it includes an inert gas distributor located alongside the hopper on the truck, and includes nozzles directed at a plurality of locations around the periphery and along the height of the fine coal hopper into the hopper and the fine coal contained therein. The hopper is closed by a hood which includes a hood drain connected through an inert gas return line to a plurality of filters where the coarse particles are removed and fed to a source for using the coarse coal particles and the inert gases are again returned to a compressor, along with a fresh supply of inert gases, which discharges into a pressure storage tank. The pressure storage tank is connected through an inert gas feedline to the distributor. In one embodiment, the inert gas feed and return line comprises an extensible, flexible connection, which is effected by the use of a small wheeled carriage containing a windup reel which moves inwardly and outwardly in respect to the fine coal hopper to accommodate the slack between the hopper and the inert gas system which is located at a fixed station. In another embodiment, the inert gas system, which includes filters for filtering the return inert gases, and a compressor for compressing the gases along with a fresh supply of inert gas and delivering it to a pressure storage tank mounted on a carriage which also moves along with the hopper and is coupled to the hopper truck.

REFERENCES:
patent: 1855191 (1932-04-01), King
patent: 2244195 (1941-06-01), Hasselbach
patent: 2609185 (1952-09-01), Eisner
patent: 2793176 (1957-05-01), Wassermann et al.
patent: 3511391 (1970-05-01), Tucker
patent: 3648985 (1972-03-01), Matweecha
patent: 3675797 (1972-07-01), Pries et al.
patent: 3753867 (1973-08-01), Wiemer

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