Method for sintering powder materials based on combination of rotary kiln shaped like omega and circular furnace

A powder material and combined sintering technology, which is applied in the direction of charge, furnace components, furnaces, etc., can solve the problems of over-burning and under-burning, and achieve the effects of uniform sintering temperature, high thermal efficiency, and simple atmosphere control

Inactive Publication Date: 2018-11-09
JIANGSU FENGGU ENERGY SAVING TECH
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Problems solved by technology

It is also prone to overburning, raw burning, or even the phenomenon of both occurring at the same time, and new problems are difficult to overcome

Method used

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Embodiment Construction

[0010] The invention relates to a method for combining sintering powder materials based on an Ω-shaped rotary kiln and an annular furnace, comprising the following steps:

[0011] 1) Use the atmosphere-protected continuous metal-coated liner rotary kiln to preheat and dehydrate the high-grade powder materials for standby;

[0012] 2) Using an atmosphere-protected continuous ring furnace to heat up and sinter high-grade powder materials;

[0013] 3) Adopt atmosphere-protected continuous composite ceramic liner rotary kiln for forced cooling of high-grade powder materials

[0014] The purity and sintering uniformity of the high-grade powder materials produced by the invention are higher, and the energy consumption is kept at a lower level, and the thermal efficiency is high, more energy-saving, environmentally friendly, and the combination of static and dynamic high-efficiency sintering can not only ensure the sintering temperature Uniform, no ring formation, more concise and c...

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Abstract

The invention discloses a method for sintering powder materials based on combination of a rotary kiln shaped like an omega and a circular furnace. The method comprises the following steps that 1, thehigh-grade powder materials are preheated and dehydrated through the atmosphere protected type continuous metal coating inner container rotary kiln for use; 2, the high-grade powder materials are heated through the atmosphere protected type continuous circular furnace for a sintering reaction; and 3, the high-grade powder materials are forced to be cooled through the atmosphere protected type continuous metal coating inner container rotary kiln. The high-grade powder materials produced through the method are higher in purity and sintering uniformity, the energy consumption is kept in a low level, the heat efficiency is high, energy conservation and environmental protection are better, static efficient sintering and dynamic efficient sintering are combined, it can be ensured that the sintering temperature is uniform, circle forming is avoided, atmosphere control is easier and more convenient, the sintering requirements of non-metal contact products with the high corrosion property can be met, no sagger is used in the sintering process, and the characteristics of the rotary kiln and the characteristics of the circular furnace are perfectly combined.

Description

technical field [0001] The invention relates to a method for sintering powder materials based on the combination of an Ω-type rotary kiln and an annular furnace. Background technique [0002] At present, the current method of industrialized production of high-grade powder materials is mainly to put high-grade powder materials into a special sagger and send them into an atmosphere-protected roller table (tunnel kiln) or pusher kiln for semi-continuous production, which is a static sintering method. The material is always stationary throughout the sintering process. Uneven heating, prone to overburning, raw burning, and even the phenomenon of both occurring at the same time. Affect the charge and discharge capacity of the material. [0003] In order to solve the above problems, a professional company has recently successfully developed the atmosphere-protected continuous composite ceramic liner rotary kiln sintering technology. This technology is used for sintering of high-g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B19/04
CPCF27B19/04F27M2003/04
Inventor 张晓军洪小东王国宁高河星季亮徐科伟高晓丽余煜
Owner JIANGSU FENGGU ENERGY SAVING TECH
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