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Stepped differential-velocity fluidized bed cooler

A fluidized bed cooler, a stepped technology, applied in the field of fluidized bed coolers, can solve the problems of poor cooling effect, high discharge temperature, uneven discharge particle temperature, etc., to achieve improved cooling efficiency, uniform temperature, good cooling effect

Inactive Publication Date: 2012-05-02
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of the existing fluidized bed coolers, such as excessively high discharge temperature, poor cooling effect and uneven temperature of the discharged particles, the invention further provides a stepped differential fluidized bed cooler

Method used

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  • Stepped differential-velocity fluidized bed cooler
  • Stepped differential-velocity fluidized bed cooler

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specific Embodiment approach 1

[0009] Specific implementation mode one: as figure 1 As shown, the stepped differential fluidized bed cooler of this embodiment includes a fluidized bed main body 1, a feed pipe 5, an exhaust pipe 6, a first discharge pipe 8, a plurality of second discharge pipes 9, a plurality of A wind chamber 10, a plurality of air distribution plates 2, a plurality of wind caps 3 and a plurality of overflow plates 7, one end of the feed pipe 5 is installed on the side wall of one end of the fluidized bed main body 1 and connected with the fluidized bed main body The inner cavity of 1 is connected, and the outer wall of the other end of the fluidized bed main body 1 is provided with an exhaust pipe 6 and a first discharge pipe 8 from top to bottom, and the exhaust pipe 6 and the first discharge pipe 8 All communicate with the inner cavity of the fluidized bed main body 1, the plurality of air chambers 10 are arranged in the inner cavity of the fluidized bed main body 1, and the plurality of...

specific Embodiment approach 2

[0011] Specific implementation mode two: as figure 1 As shown, the height difference H1 between two adjacent air distribution panels 2 in this embodiment is 180-550 mm. With such a design, there is a height difference between adjacent fluidized sub-beds, and the fluidized materials can enter the next stage smoothly. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0012] Specific implementation mode three: as figure 1 As shown, the height difference H2 between the air caps 3 on two adjacent air distribution panels 2 in this embodiment is 200-500 mm. This design ensures the fluidization height of adjacent fluidized sub-beds and prevents the exchange and back mixing of particles in adjacent fluidized sub-beds. Other compositions and connections are the same as those in the first or second embodiment.

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Abstract

The invention discloses a stepped differential-velocity fluidized bed cooler relating to a fluidized bed cooler. The invention aims to solve the problems of overhigh discharging temperature, poor cooling effect and non-uniform discharged grain temperature in the traditional fluidized bed cooler. A feeding pipe is communicated with the side wall at one end of a fluidized bed main body; an outer side wall at the other end of the fluidized bed main body is provided with an exhaust pipe and a first discharging pipe from the top down; a plurality of air chambers are arranged in the fluidized bed main body; the air chambers are arranged in sequence from high to low along the feeding-to-discharging direction of the fluidized bed main body; the upper end of each air chamber is provided with an air distribution plate; each air distribution plate is provided with a second discharging pipe; a plurality of air distribution holes are uniformly distributed and processed on each air distribution plate; a hood is arranged at each air distribution hole; an overflow plate is vertically arranged between every two adjacent air distribution plates; and the height of each overflow plate is sequentially and progressively reduced along the feeding-to-discharging direction of the fluidized bed main body. The stepped differential-velocity fluidized bed cooler is used for high-temperature granular materials in the cooling industry field.

Description

technical field [0001] The present invention relates to a fluidized bed cooler. Background technique [0002] At present, the fluidized bed cooler adopts solid fluidization technology to realize the cooling of granular materials, and is widely used in the cooling of high-temperature granular materials in chemical industry, medicine, food, light industry, mining and metallurgy, power and other industrial fields. However, in the existing fluidized bed cooler, due to the continuous increase in heat release of high-temperature material particles, low heat transfer load, the discharge temperature is too high, the cooling effect is poor, and the material particles in the fluidized bed cooler are back-mixed, resulting in uneven temperature of the discharge particles. . Contents of the invention [0003] In order to solve the problems of excessively high discharge temperature, poor cooling effect and uneven temperature of discharge particles in the existing fluidized bed cooler, ...

Claims

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Application Information

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IPC IPC(8): F28C3/16
Inventor 孙立岩刘国栋赵广播何玉荣徐鹏飞陆慧林
Owner HARBIN INST OF TECH
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