Circular spout bed equipped with circular multi-nozzle ventilation mechanism

Abstract

The ring spouted bed with ring-direction multiple spouts and V-shaped reduced flow chamber comprises: forming ring space by two concentric stand cylinders with shaft as center, arranging wind-distribution mechanism with pressure-stabilization wind chamber on ring space bottom, arranging transient cone connected to outlet pipe and rotation taper distributor connected to top motor by center shaft respective on lower and top of inner cylinder; arranging spiral dumper on bottom of inner cylinder and stirring blade on shaft; wherein, material passes the distributor by feeding pipe, added-pressure liquid enters wind-distribution mechanism through wind chamber to spay into ring space. This invention has compact structure, high heat-transfer effect, boosts gas-solid heat exchange rate, and reduces pressure loss.

Description

technical field [0001] The invention relates to an annular spouted bed equipped with an annular multi-nozzle air distribution mechanism, which is a high-efficiency gas-solid contact reactor, which belongs to material drying, biomass gasification, activated carbon production, coal gasification co-production and soot burning Gas desulfurization and other technical fields. Background technique [0002] Spouted bed technology is an important branch of fluidization technology, which first appeared in the early 1950s. Spouted bed technology is mainly used for grain drying, granulation, particle coating, etc. In addition, spouted beds also play an important role in low-quality coal combustion and gasification, low calorific value industrial waste combustion, and partial oxidation of natural gas to hydrogen production. [0003] The traditional spouted bed structure is mainly composed of three parts: the spouted gas inlet nozzle, the bottom inverted cone and the cylindrical main bo...

AI Technical Summary

Problems solved by technology

[0007] In the existing multi-nozzle spouted bed, a plurality of parallel incident nozzles are arranged at the bottom of the spouted bed, and the flow through each inlet nozzle must be controlled separately, and the conical sections connected with each other are used, which is easy to cause air supply in the bed Uneven, especially when the air volume is small, local areas are prone to dead zones

The air volume of multiple air supply pipes is difficult to control separately, and the actual operation is very difficult

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