Pulsating combustion internal heating fluidized bed drying device

Abstract

The invention relates to a pulsating combustion internal heating fluidized bed drying device comprising a fluidized bed. The fluidized bed is provided with a feeding port, a discharging port and an exhaust port. The pulsating combustion internal heating fluidized bed drying device is characterized in that an air pre-heater and pulsating combustion devices are further included, the bottom end of abed layer of the fluidized bed is provided with a porous air distribution plate, the end of the air pre-heater is connected with a hot air blowing pump, and the hot air blowing pump communicates to the air distribution plate through an air supply pipe; and the multiple pulsating combustion devices are horizontally arranged in the fluidized bed. The pulsating combustion internal heating fluidized bed drying device is scientific and reasonable in design, the pulsating combustion technology and the fluidization technology are used in a combined manner, the multi-tube bundle pulsating combustion devices are adopted to heat and dry materials inside the fluidized bed, and the advantages of high heat transfer efficiency, the high energy utilization rate, less pollution discharge and the like areachieved; and meanwhile, the drying time is significantly shortened, and the production efficiency is achieved.

Description

technical field [0001] The invention belongs to the technical field of fluidized drying, relates to a fluidized bed drying device, in particular to a pulsating combustion internal heating type fluidized bed drying device. Background technique [0002] The internal heating method used in the traditional internal heating fluidized bed is generally a heat exchange tube bundle or a heating plate, and the heating medium used is generally the steam generated by the boiler. The drying fluidized bed has been greatly reduced, but the internal tubular heat exchanger still needs to rely on the steam generating boiler, which is not only expensive in equipment, but also high in operation and maintenance management costs, and the equipment occupies a large area; at the same time, the drying energy consumption is relatively high. Large, there is some pollution. [0003] Pulsating combustion is a heating method with high efficiency, low consumption and low pollution emissions. Pulsating co...

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Problems solved by technology

[0005] Through the search of published patent documents, no published patent documents identical to this patent application have been found

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