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Micro pulse fluidized bed device applied to ultrafine powder fluidization

A pulsed flow, ultra-fine powder technology, applied in chemical/physical processes, chemical instruments and methods, etc., can solve problems such as poor response speed, complex gas supply system, and difficulty in adapting to micro-chemical systems, and achieve easy regulation and no movement. Components, simple structure effect

Active Publication Date: 2020-10-02
NORTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, a solenoid valve is used to completely cut off or partially cut off the gas flow to realize the gas pulse. The mechanical method often has limitations in size and frequency. The gas supply system is more complicated and the response speed is poor. It is difficult to adapt to the growing micro chemical system.

Method used

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  • Micro pulse fluidized bed device applied to ultrafine powder fluidization

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Embodiment

[0030] This embodiment relates to a micro-pulse fluidized bed device applied to ultrafine powder fluidization, and its structure is shown in the attached figure 1 As shown: the device includes: a circuit 1, a first discharge electrode 2, a second discharge electrode 3, a discharge cup 4 and a fluidized bed body 9;

[0031] in,

[0032] The circuit 1 is connected to the first discharge electrode 2 and the second discharge electrode 3;

[0033] The discharge cup 4 is provided with a discharge cup end cover 8, and the discharge cavity is formed by screw connection;

[0034] The first discharge electrode 2 and the second discharge electrode 3 are arranged in the middle of the discharge cup 4 .

[0035] There is a discharge gap between the first discharge electrode 2 and the second discharge electrode 3 .

[0036] The center of the bottom of the discharge cup 4 is provided with an air inlet.

[0037] The elastic sheet 6 is covered above the air inlet hole.

[0038] One end of ...

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Abstract

The invention provides a micro pulse fluidized bed device applied to ultrafine powder fluidization. The device comprises a circuit (1), a first discharge electrode (2), a second discharge electrode (3), a discharge cup (4) and a fluidized bed body (9), wherein the circuit (1) is connected with the first discharge electrode (2) and the second discharge electrode (3); the discharge cup (4) is provided with a discharge cup end cover (8) and forms a discharge cavity through threaded connection; and the first discharge electrode (2) and the second discharge electrode (3) are arranged in the middleof the discharge cup (4). By means of the device, a complex air supply system of a traditional fluidized bed is avoided, and the structure is simple, the size is small, airflow pulses are easily adjusted by adjusting the discharge power and frequency of a circuit, and the device is easily applied to the ultrafine powder fluidization process. The invention provides a novel pulse fluidized bed device, which is free of complex gas supply and pulse gas switching control devices, free of moving parts, simple in structure, easy to regulate and control and capable of being conveniently combined witha micro chemical engineering system for use.

Description

technical field [0001] The invention relates to the technical field of chemical machinery; in particular, it relates to a micro-pulse fluidized bed device applied to ultrafine powder fluidization. Background technique [0002] The air pulse fluidized bed can realize the intensification of the fluidization process by adjusting the air pulse. The device can promote the fluidization state of the sticky particles, prevent or reduce the agglomeration of particles in the fluidized bed, and improve the heat transfer between different particle beds. mass transfer rate. Usually, a solenoid valve is used to completely cut off or partially cut off the gas flow to realize the gas pulse. The mechanical method often has limitations in size and frequency. The gas supply system is relatively complicated and the response speed is poor, which is difficult to adapt to the growing micro chemical system. [0003] For this reason, a new type of pulsed fluidized bed device is proposed, which uses...

Claims

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Application Information

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IPC IPC(8): B01J8/24
CPCB01J8/24
Inventor 魏利平古玉宽
Owner NORTHWEST UNIV
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