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Efficient direct-heating dryer for powdery materials

A technology for powdery materials and dryers, applied in dryers, drying, drying of solid materials, etc., can solve the problems of low energy utilization rate, and achieve the effects of simple structure, saving coal consumption, and avoiding lowering of grades.

Active Publication Date: 2013-08-07
滨州市科创孵化器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Energy efficiency is also lower

Method used

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  • Efficient direct-heating dryer for powdery materials
  • Efficient direct-heating dryer for powdery materials
  • Efficient direct-heating dryer for powdery materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 , figure 2 As shown, the powder material dryer includes a supporting column 1, on which a spring 18 is arranged, and on the supporting column 1, an inclined chute 2 is supported, and the inclined chute 2 is grooved, and the section of the inclined chute 2 is It is rectangular or U-shaped, and the inclined chute 2 is made of metal plate, which can be ordinary steel plate or stainless steel plate; the inclined chute 2 forms an angle of 12-15 degrees with the horizontal line; the inclined chute is supported by the two side walls A support frame 15, the vibrator 5 is arranged on the support frame 15, so that only one vibrator is needed to achieve a uniform vibration balance, and a vibrator can be respectively set on the two side walls, and when the vibration force of one vibrator is not enough, use The two vibrators achieve the purpose of increasing the vibration force;

[0029] A heating chamber 3 is provided below the inclined chute 2, specifically arr...

Embodiment 2

[0035] In the case that the dryer is different except for the heating chamber and other settings are the same, it is mainly realized by burning natural gas or coal gas in the heating chamber. In this case, the furnace wall of the heating chamber can also adopt the structure of embodiment 1 , the refractory brick and insulation layer structure can be used as the furnace wall, and only the nozzle and ignition device for burning natural gas or gas are installed in the furnace, and the drying temperature is controlled by controlling the size of the natural gas. When this method is adopted, the impact on the environment is small, especially the natural gas itself has no environmental pollution.

Embodiment 3

[0037] Electric heating equipment can also be set in the heating chamber of the dryer for heating the inclined chute. By arranging resistance wires in the heating chamber, generally several groups of resistance wires are arranged along the bottom of the inclined chute in the heating chamber. By controlling different groups of resistance wires, the load can be controlled and the drying temperature can be precisely controlled. When this method is used, there is no impact on the environment, but the electricity cost is relatively high.

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Abstract

A dryer for powdery materials is particularly suitable for drying moisture-containing mineral aggregates after mineral dressing. The dryer comprises a bearing column, a groove-shaped inclined chute is arranged on a column support, and an included angle formed by the inclined chute and the horizontal line is in a range of 7-30 degrees; a heating cavity is positioned below the inclined chute and capable of providing heat to heat the inclined chute, and the heated inclined chute dries mineral aggregates; and the heating cavity is provided with a chimney, and the top of the inclined chute is connected with a feeding hopper. The dryer is simple in structure and can be disassembled easily, the heat source is fully utilized, and radiant heat can be fully utilized when combustible substances are used for heating the inclined chute.

Description

technical field [0001] The invention relates to a material dryer, especially for high-efficiency and energy-saving drying of powdery materials such as iron concentrate, titanium concentrate and clean coal in vanadium-titanium magnetite beneficiation, and can ensure and improve the drying efficiency of powdery materials. quality. Background technique [0002] At present, the drying of powdery materials is mainly done by drum dryer or rotary dryer. The main principle is to pass the high-temperature gas formed by combustion in the furnace into the rotary dryer, and at the same time transport the powdery materials to the In the rotary dryer, the rotation of the rotary dryer drives the powdery material to rotate, so that the powdery material turns over in the dryer, and the material is dried under the action of high-temperature gas. In order to meet the requirements of drying, coal powder is generally used as raw material in the furnace, and it is boiled and burned under the act...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B17/00F26B23/00F26B25/04
Inventor 李凤山杨涛毕宏
Owner 滨州市科创孵化器有限公司
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