Gas distributer for a convective dryer having improved radial gas velocity control

A gas distributor, gas velocity technology, applied in the direction of drying solid materials, heating to dry solid materials, dryers, etc., can solve the problems of unrealizable, low radial velocity, etc.

Inactive Publication Date: 2016-08-03
SPX FLOW TECH DANMARK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, none of these assemblies of guide vanes can achieve the low radial velocities contemplated by the present invention

Method used

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  • Gas distributer for a convective dryer having improved radial gas velocity control
  • Gas distributer for a convective dryer having improved radial gas velocity control
  • Gas distributer for a convective dryer having improved radial gas velocity control

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Embodiment Construction

[0029] As stated above, it is important to the present invention to provide a drying gas jet for a convective dryer with improved radial control and axial alignment at the outlet surface of the associated gas distributor.

[0030]The inventors of the present invention have realized that improvements to jet flow stability and calibration can be achieved in a simple manner by inserting a flow calibrator according to the invention into the flow path of the drying gas, wherein the flow calibrator can be placed in the In or upstream of the gas distributor. For example, the flow calibrator according to the invention can be arranged in a system for convective drying or in a convective dryer upstream of said gas distributor, for example, in atomizing devices and heaters, coolers, filters, mixing between inserts or valves and still have a beneficial effect on the radial velocity component of the drying gas flow. It is therefore a further object of the present invention to provide a fl...

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PUM

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Abstract

The invention relates to a gas distributer for, and a method of, controlling the velocity profile of a drying gas in a convective dryer, particularly the radial velocity profile, by creating an advantageous velocity profile prior to introducing the drying gas into the convective dryer chamber. The velocity profile may have different requirements depending on the convective process, chamber dimensions and atomizing means, but common gas distributer targets may be defined, such as a uniform velocity distribution and axial alignment. The invention further concerns a convective dryer comprising the gas distributer of the present invention, the use of said method to produce a powdery substance in a convective dryer according to the present invention.

Description

technical field [0001] The present invention relates to gas distributors or gas diffusers installed on spray dryers, spray coolers, spray absorbers and similar equipment collectively known as convection dryers, where, for example, the dispersed or distributed gas or air may be atmospheric air or special gases or mixtures of special gases, and where the equipment collectively referred to as convection dryers is applicable to many different technical fields where it is desired to produce powdery materials from atomized liquids containing to be dried and restored to powdery, One or more substances that are caked, coated, or granular. Background technique [0002] A convection dryer is a device for the production of dry powdered substances from an atomized liquid, in which the atomized liquid droplets are dried or solidified in a processing chamber by convective heat exchange with the fluid and frequent mass transfer. The process takes place in a limited space. Processing cham...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B3/12B01D1/18
CPCB01D1/18F26B3/12F26B21/06
Inventor 亨里克·舍恩费尔特克里斯蒂安·霍姆·弗里德贝里
Owner SPX FLOW TECH DANMARK
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