Explosion-proof grading anti-blocking type solid drying system

Abstract

The invention relates to an explosion-proof grading anti-blocking type solid drying system. A technical scheme adopted by the invention is that a three-way reversing valve and a bypass system are connected to a storage bin; the storage bin is communicated to the interior of a shell through an inlet discharging valve; a distributing vibration feeder I, a screening dividing device I, a bulky grain material preheating vibration feeder I, a distributing vibration feeder II, a screening dividing device II, a bulky grain material preheating vibration feeder II and a material drying vibration feeder are sequentially arranged in the shell from top to bottom; a vibrator and a pneumatic arch breaking device are respectively arranged on each vibration feeder; on an inner wall of the shell, a heating device I and a heating device II are arranged at two sides of the bulky grain material preheating vibration feeder I and the bulky grain material preheating vibration feeder II; a self-closed explosive decompression valve is arranged on the upper end of the shell; an ash bucket is arranged on the lower end of the shell; a hot air inlet and an outlet ash-discharging valve are arranged on the ash bucket; and a belt ash conveyer is arranged under the outlet ash-discharging valve. The explosion-proof grading anti-blocking type solid drying system is low in energy consumption, free from pollution, high in drying efficiency, free from damaging materials and capable of preventing equipment from exploding.

Description

technical field [0001] The invention belongs to drying equipment, and specifically relates to an explosion-proof graded and block-proof solid drying system mainly used for dehydrating and drying coal, oil shale and other materials that need to be dried and dehydrated. Background technique [0002] At present, the domestic drying equipment for coal mines and chemical industries mainly adopts drum dryers and fluidized bed dryers; the equipment structure is complex and the efficiency is low, and there is also a vibrating mixed flow dryer, which has the problem of damage to the particle size of the dried materials. Seriously, the particle size distribution of raw materials will be changed, and the screen holes of the vibrating mixed flow dryer will often be blocked. Contents of the invention [0003] The purpose of the present invention is to aim at the deficiencies of the existing technology, and propose a kind of reliable operation, low energy consumption, no pollution, high...

AI Technical Summary

Problems solved by technology

[0002] At present, domestic drying equipment for coal mines and chemical industries mainly adopts drum dryers and fluidized bed dryers; the equipment structure is complex and the efficiency is low, and there is also a vibrating mixed flow dryer, which has the problem of damage to the particle size of the dried materials. Seriously, the particle size distribution of raw materials will be changed, and the screen holes of the vibrating mixed flow dryer will often be blocked.

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