TH169637B - Preventing spontaneous combustion of unloaded coal In the preheater for coal drying using steam reheat. - Google Patents

Abstract

EDIT 14/03/2017 This invention relates to the protection heaters, in the drier type. Multi-stage for reheat steam drying, spontaneous combustion that occurs By coal oxidation when the coal is conveyed to a multi-stage drier from Fixed quantity coal dispenser by pulverizer This invention relates to a successful machine. For the drying of coal by using reheat steam, the preforms have been formulated so that the coal It is pre-dried in the first dry coalser and is fed to the second dry coalser. And hence it is dried a second time with the re-heat steam generated from the re-heater. Is supplied through the steam reheat supply hose; The nitrogen distributor supplies nitrogen through the nitrogen supply tube; The saturated steam generated by the saturated steam generator is supplied through a saturated steam supply hose; The reheat supply hose, nitrogen supply, and saturated steam supply line are connected to the 4-way valve; And the 4-way valve supplies nitrogen and saturated steam, or nitrogen or saturated steam, along with the reheat steam, to the first to fourth steam chamber through the steam supply hose, and the steam is injected into it. To coal which will be transferred to the unloading plate First and second unloading plates so that the spontaneous combustion of coal is prevented During the drying and unloading time of coal -------------------------------------------------- -------------------------- This invention relates to a protective precautions, in a Multi-stage for heating of coal by steam heating, spontaneous combustion that occurs. By coal oxidation when the coal is conveyed to a multi-stage drier from Fixed quantity coal dispenser by pulverizer This invention relates to a successful machine. For the drying of coal by using reheat steam, the preforms have been formulated so that the coal It is pre-dried in the first dry coalser and is fed to the second dry coalser. And hence it is dried a second time, with the reheat steam generated by the re-heater. It is supplied through the reheat steam supply hose; The nitrogen distributor supplies nitrogen through the nitrogen supply tube; The saturated steam generated by the saturated steam generator is supplied through a saturated steam supply hose; The reheat supply hose, nitrogen supply, and saturated steam supply hose are connected to the 4-way valve; And the 4-way valve supplies nitrogen and saturated steam, or nitrogen or saturated steam, along with the reheat steam, to the first to fourth steam chamber through the steam supply hose, and the steam is injected into it. To coal which will be transferred to the unloading plate First and second unloading plates so that the spontaneous combustion of coal is prevented During the drying and unloading time of coal

Claims (1)

EDIT 14/03/2017 1. A machine for preventing spontaneous combustion of unloaded coal in Reheat steam boiler, self-contained prefabricated apparatus Dry the coal first, where a pair of first driven sprockets and one pair of driven sprockets are made. In order to be attached to the first chain, respectively, a number of transfer plates are hinged between the first chain, a pair of guide rails that support