Circular spout bed equipped with circular multi-nozzle ventilation mechanism

A multi-nozzle, spouted bed technology, applied in the direction of chemical/physical processes, chemical instruments and methods, etc., can solve the problems of difficult separate control of the air volume of the air supply pipe, uneven air supply in the bed, and practical operation difficulties, etc., to achieve Enhance gas-solid heat transfer and particle mixing rate, compact structure, and prolong the effect of residence time

Inactive Publication Date: 2006-04-26
SHANGHAI JIAO TONG UNIV
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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 ar

Method used

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  • Circular spout bed equipped with circular multi-nozzle ventilation mechanism
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  • Circular spout bed equipped with circular multi-nozzle ventilation mechanism

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[0037] The technical solutions of the present invention will be further described below with reference to the accompanying drawings.

[0038] The annular spouted bed structure of the present invention is as follows figure 1 As shown, it is mainly composed of an annular space 16, an air distribution mechanism 9, a rotating cone distributor 4, a pressure stabilized air chamber 13, a screw discharger 8, a feeder 1, a discharge pipe 10, and the like. The outer cylinder 6 and the inner cylinder 7 are two concentric vertical cylinders centered on the rotating shaft 5, the diameter of the outer cylinder 6 is 200-2800 mm, and the diameter of the inner cylinder 7 is 100-2000 mm. A transition cone 14 is provided at the lower part of the inner cylinder 7 , and the bottom of the transition cone 14 is connected with the discharge pipe 10 . The outer cylinder 6 and the inner cylinder 7 form an annular space 16, a unique multi-spout air distribution mechanism 9 is arranged at the bottom of ...

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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...

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Application Information

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IPC IPC(8): B01J8/18
Inventor 胡国新
Owner SHANGHAI JIAO TONG UNIV
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