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A drying furnace or pyrolysis furnace with a rotating material bed

A technology of rotating material bed and pyrolysis furnace, which is applied in the direction of drying, drying machine, coke oven, etc. It can solve the problems of structural buckling and collapse, limit the operating capacity of rotary furnace, etc., and achieve the effect of increasing bearing capacity and wide application

Active Publication Date: 2016-12-21
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the weight of the rotating material bed is supported on the feeding pipe, the rotary furnace has strict restrictions on the structure and weight of the rotating material bed. If the weight of the rotating material bed is too large, it will cause buckling and collapse of the entire structure, so Severely restricts the scale-up of the rotary kiln, thereby limiting the operational capability of the rotary kiln

Method used

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  • A drying furnace or pyrolysis furnace with a rotating material bed
  • A drying furnace or pyrolysis furnace with a rotating material bed
  • A drying furnace or pyrolysis furnace with a rotating material bed

Examples

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Effect test

Embodiment 1

[0041] Such as Figure 1 to Figure 4 As shown, the drying furnace or pyrolysis furnace of Embodiment 1 of the present invention includes a shell formed by a ceiling 5, a bottom plate 7 and an outer side wall 6; a rotating material bed arranged in a chamber 8 surrounded by the shell 1. The rotating material bed 1 divides the chamber 8 into an upper feeding area 9 and a lower air mixing area 10. The center of the rotating material bed 1 has a feeding hole (not shown in the figure), and the feeding hole There is a feeding pipe 4 directly below, and the feeding pipe 4 is used to discharge the dried or pyrolyzed material on the rotating material bed 1; and a cylindrical support wall 11 for supporting the rotating material bed 1, the supporting wall 11 is the same as The rotary bed 1 turns together with the axis of rotation of the rotary bed 1 . The drying furnace or pyrolysis furnace of the present invention supports most or even all of the weight of the rotating material bed 1 on...

Embodiment 2

[0051] Such as Figure 5 and Figure 7 As shown, in order to ensure that the rotating material bed 1 and the supporting wall 11 will not be offset during the rotation, in this embodiment, a plurality of supporting walls are provided in the supporting wall 11 to support the supporting wall when the supporting wall 11 is offset. Centering assembly 22 on the inner side of 11. A plurality of centering assemblies 22 are evenly distributed within the support wall 11 . Such as Figure 6 As shown, each centering assembly 22 includes: a fixed bracket 25, a centering wheel 24 that is in contact with the inner wall surface of the support wall 11 and is driven by the support wall 11 to rotate horizontally, and the centering wheel 24 is installed on a fixed frame through a wheel frame 27. on the bracket 25. When the rotating material bed 1 or the support wall 11 is eccentric, the support wall 11 will move radially, and one side of the support wall 11 will be close to the centering whee...

Embodiment 3

[0054] Such as Figure 8 As shown, the drying furnace or pyrolysis furnace shown in the third embodiment also includes an external support for supporting the rotating material bed 1 from the outer edge / peripheral edge of the rotating material bed 1 . In the case where the outer support and the support wall 11 are provided at the same time, the size of the rotating material bed 1 can be further increased, and it can also be kept stable without buckling. For the rotating material bed 1, it is equivalent to a structure with supports at both ends, and its buckling resistance is stronger.

[0055] Such as Figure 10 As shown, the outer support includes a ring-shaped outer support frame 29 fixedly connected to the outer edge of the rotary material bed 1 and stretching out from the outer side wall 6 of the housing, and the ring-shaped outer support frame 29 connected below the outer support frame 29. The slide rail 30 and a plurality of outer rollers 31 distributed along the circum...

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PUM

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Abstract

The invention discloses a drying furnace or pyrolyzing furnace. The drying furnace or pyrolyzing furnace comprises a shell, a rotary material bed and a cylindrical supporting wall, wherein the shell comprises a top, a base plate and an outer side wall, the rotary material bed is arranged in the shell, the cylindrical supporting wall is used for supporting the rotary material bed, and the rotary material bed and the supporting wall rotate together around the rotation axis of the rotary material bed. Due to the fact that the supporting wall of the drying furnace or pyrolyzing furnace and a discharging pipe are arranged separately, the weight of the whole rotary material bed is borne by the supporting wall, and the bearing capacity of the supporting wall can be greatly improved by adjusting the installation position, the size and materials of the supporting wall.

Description

technical field [0001] The invention relates to the field of material drying, in particular to a drying furnace or a pyrolysis furnace with a rotating material bed. Background technique [0002] China is a country with primary energy resources dominated by coal. Coal can provide more than 65% of primary energy. Coal production ranks first in the world and is increasing year by year. [0003] my country has the largest lignite reserves, accounting for 16% of the world's total lignite reserves, most of which are concentrated in North China. However, due to the defects of lignite itself, such as high moisture content, high volatility, and low calorific value, pyrolysis is adopted according to local conditions. The process of processing lignite is of great significance. [0004] Generally, a rotary furnace used for drying or pyrolyzing carbon-containing solid fuels consists of a closed furnace chamber with a ceiling, an outer wall and a bottom plate. There is a rotating material...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F26B17/32C10B49/06
CPCY02P70/10
Inventor 卢洪李君郭屹王涛
Owner CHNA ENERGY INVESTMENT CORP LTD