Moving iris type fluidized bed

Abstract

The invention discloses a mobile iris type fluid bed, which is characterized by the following: adopting multiple separating air chamber; assembling a plurality of air chamber arrangement in length direction; adopting double air chamber arrangement in width direction; adopting a rotary pocket feeder to feed; equipping mobile iris type device in the bed body; keeping mobile and fluid effect of raw material coal; adjusting with four grade sizing overflow dam to control fluid time and grading effect; transporting the fine particle raw coal to fine material belt of tail through three auger conveyor; transporting the coarse grain to coarse material belt of tail through chute. This invention can increase output of coke oven, which can utilize lost heat of stack waste gas to realize waste heat energy utilization.

Description

technical field [0001] The invention relates to a large-scale industrial device for coal pretreatment in the coking industry, in particular to a moving partition type fluidized bed. Background technique [0002] In the past ten years, the coke oven raw coal humidity control technology has been greatly developed in Japan. Japan has developed three generations of coal humidity control technology, namely thermal kerosene drying technology, steam drying technology and fluidized bed drying technology using coke oven flue gas. The United States, Germany and other countries have begun to conduct tests and production practices of coal humidity control devices, and have achieved good economic benefits. The pneumatic selective crushing technology has been applied in Russia, Ukraine, India and other countries, which has significant energy saving effect and improvement of coke quality. [0003] The above-mentioned existing coal humidity control technology and coal pneumatic selective c...

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Problems solved by technology

[0003] The above-mentioned existing coal humidity control technology and coal pneumatic selective crushing are completed by different equipment according to their own independent process steps, which will lead to complex coal pretreatment process procedures, many equipment, large investment, high energy consumption, and does not meet the requirements Requirements for the development of circular economy

However, even so, it is still relatively difficult to realize domestically

At present, the domestic industrial production of drying raw material mixed coal is still mainly in the stage of applying drum drying equipment, such as the energy-saving drum coal humidity control technology researched and developed by Tangshan Branch of Tiandi Technology Co., Ltd.; and the more advanced fluidization Although bed drying equipment has been widely used in different media in the fields of chemical industry, food industry, medicine and biochemical industry, but limited by its use, its production capacity can only reach a maximum of 50t / h

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