Solid particle player

Abstract

The invention discloses a solid particle player which is in a coaxial segmented sealing cylindrical structure and comprises a base plate, a spray nozzle, an acceleration section, a rectifying section, a fluidized section and a cover plate. A rectifying plate which is uniformly provided with millimeter grade through holes is fixedly arranged at the inner wall of the connected part of the acceleration section and the rectifying section; an air distribution plate which is uniformly provided with nano-grade gaps is fixedly arranged on the inner wall at the connection part of the rectifying section and the fluidized section; solid particles are stacked on the air distribution plate; a plurality of layers of fluidized substance outlets are machined at the positions in different heights at the upper side of the fluidized section; and an included angle of 15-50 degrees is formed between the axis of the fluidized substance outlets and the axis of the solid particle player. The solid particle player is formed by sintering metal powder; air current is diffused by the air distribution plate with nano-grade gaps so as to obtain the uniformly-distributed incoming current and avoid the wall-surface effect; and according to the distance among various sections and the opening mode of the air distribution plate and the side wall, the invention ensures enough flowing resistance, reduces the wall-surface effect due to the nonuniform air inlet speed and pressure distribution, overcomes the instability of focus fluidization and inhibits the abnormal phenomenon of channeling and slugging in a bed layer.

Description

technical field

[0001] The invention relates to a solid particle dispenser, which belongs to the technical fields of fluid mechanics, gas dynamics and machinery. Background technique

[0002] Fluidized bed technology is a science and technology that has developed rapidly and gradually matured in the past ten years. At present, its fluidization principle has been applied in many engineering fields. Using the effect of fluid flow, a large number of solid particles are suspended in the fluid and make them exhibit some performance characteristics similar to fluid, which is solid fluidization, and certain production processes are realized by means of the fluidized state of solid particles The operation is called fluidization technology.

[0003] Yao Yuying's "Principles of Chemical Engineering" published by Tianjin University Press in 1997 explained the basic principles of fluidization, and "Chemical Reaction Process and Equipment" published by Chemical Industry Press, edited by...

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