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A kind of manufacturing method of powder material high temperature calcining rotary furnace furnace tube

The technology of a powder material and production method is applied in the field of production of powder material high-temperature calcined rotary furnace tubes, which can solve the problems of large nitrogen gas consumption, large power consumption, and low production efficiency, and achieve fast heat conduction, Nitrogen consumption savings and high production efficiency

Active Publication Date: 2021-01-01
HENGLI ELETEK
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

During the movement of the powder material, the powder material stays at the bottom of the furnace tube for a long time and is heated unevenly, the number of times the powder material is turned is small, the heat conduction speed is slow, and the sintering of the powder material is not complete, which is easy to cause the raw material and the clinker to be mixed together; Dehydration drying, high-temperature calcination If the moisture content of the powder material in the front stage is too high, it is easy to form balls and agglomerates, which will affect the dehydration drying and high-temperature calcination in the latter stage; at the same time, the thermal efficiency is low and the power consumption is large. If a nitrogen atmosphere protection is required for burning, the nitrogen consumption is large and the production efficiency is low.

Method used

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  • A kind of manufacturing method of powder material high temperature calcining rotary furnace furnace tube
  • A kind of manufacturing method of powder material high temperature calcining rotary furnace furnace tube
  • A kind of manufacturing method of powder material high temperature calcining rotary furnace furnace tube

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] see Figure 1-7 , the present invention provides a technical solution: a method for manufacturing a powder material high-temperature calcined rotary furnace tube, the furnace tube is welded together by a tube body (1), a spiral piece (2), and a connecting rod (3), The pipe body (1) is provided with three sections of connecting rod (3) installation holes evenly distributed for welding and fixing the positioning of the helical piece (2), and the helical p...

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Abstract

The invention discloses a high-temperature roasting rotary furnace furnace-tube for a powder material. The high-temperature roasting rotary furnace furnace-tube comprises a tube body, spiral sheets and a connecting rod, which are integrated in a welding mode, wherein three connecting rod mounting holes which are used for welding and fixing the spiral sheets to position are uniformly distributed onthe tube body; three grooves used for positioning are formed in the spiral sheets; after the spiral sheets are processed and welded in sections, the connecting rods are blocked into the three groovesof the spiral sheets; the connecting rod and the spiral sheets are welded or adopt a bayonet blocking structure; the spiral sheets are blocked into the tube body; and the spiral sheets are rotated for enabling the connecting rod to align to the three mounting holes in the tube body, so that the connecting rod and the tube body are welded into an integer. Compared with the prior art, the high-temperature roasting rotary furnace furnace-tube is not liable to cause accumulation of the powder material, enables the material to be mutually dispersed, is more in turnover times, is high in heat conduction speed, and is complete in sintering; and during working, production efficiency is high, the yield is twice or more that of a conventional rotary furnace, and power consumption and nitrogen gas consumption are saved by 60% or more in comparison with those of the conventional rotary furnace.

Description

technical field [0001] The invention relates to the technical field of calcining powder materials, in particular to a method for manufacturing a rotary furnace tube for high-temperature calcining powder materials. Background technique [0002] At present, the diameter of the traditional rotary furnace tube used for dehydration and drying of industrial powder materials and mass production of high-temperature calcination is too large, and the diameter is generally above Ф630mm, which is convenient for the operator to enter the furnace tube to weld the spiral piece or the powder material displacement guide plate. Considering that the human body enters the furnace tube for maintenance during equipment maintenance, the depth of the spiral piece or the powder displacement guide plate is generally very shallow about 100mm, so the allowable powder material charging amount is small, generally only 10% of the furnace tube cross-sectional area ~15%, and it is concentrated at the bottom...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B7/34F27B7/20B23P15/00
Inventor 徐金龙陈金明夏鹏邢程
Owner HENGLI ELETEK
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