Patent ID: 8739975
Filing Date: 2014-06-03
Classification: C10L,F26B

Abstract:
1. An integrated drying and dry separation apparatus for upgrading raw coal, comprising: a coal supply system, a hot air system, a drying system, a dedusting and exhausting system, and a drying separation system, the coal supply system is separable into two portions, a coal supply for dry raw coal and a coal supply for hot air furnace; the coal supply system supplies raw coal to the hot air system and the drying system respectively by using a raw coal conveyor; the hot air system is a heat source portion of the drying system comprises a hot air furnace, a settling chamber and a first main fan, the hot air system supplies hot air with certain temperature pressurized by the first main fan to the drying system, wherein the hot air with certain temperature is formed by removing sparks from flue gas produced in the hot air furnace when passing through the settling chamber and then mixing the processed flue gas with cold air, an air outlet of a first main fan is connected to a lower portion of a dryer in the drying system; the drying system is configured for drying and dehydrating the raw coal, and for reducing the water content of the raw coal, wherein the dried coal products are conveyed to the dry separation system by a dried product conveyor; the dedusting and exhausting system is configured for recycling fine particles of coal dust, comprising a dust remover and an exhaust blower, connected between the drying system and the dry separation system, the exhaust blower includes a draught fan and an exhaust pipe; and the dry separation system comprises a dry separator, a circulating fan and a cyclone dust remover, and is configured to separate the dried raw coal into fancy coal, middling coal and coal gangue.