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Rotary hearth furnace

A rotary hearth furnace and hearth technology, which is applied in the field of hearth, can solve the problems of installation space and high production cost, and achieve the effect of suppressing installation space and compact structure

Active Publication Date: 2015-12-02
CHUGAI RO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] Although there are examples where springs are incorporated into the horizontal position limiting mechanism and the springs are used to eliminate vibration and strongly maintain the position of the hearth, there are cases where it is necessary to firmly assemble rigid springs, which increases the installation space and production costs. The problem

Method used

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Embodiment Construction

[0042] Hereinafter, preferred embodiments of the rotary hearth furnace of the present invention will be described in detail with reference to the drawings. figure 1 It is an overall schematic perspective view of the rotary hearth furnace of this embodiment, figure 2 yes means figure 1 An enlarged sectional view of the hearth and its surroundings of the rotary hearth furnace shown, image 3 Yes figure 2 The X-X ray perspective view in sectional view, Figure 4 Yes figure 2 The Y-Y line in the sectional view, Figure 5 yes means figure 1 A top view of the configuration relationship among the annular body, the swing arm and the spring unit of the rotary hearth furnace shown, Image 6 Yes figure 2 An enlarged view of the main part of the lower part of the hearth shown, Figure 7 yes means figure 1 A cross-sectional view of the main part of the spring unit used in the rotary hearth furnace.

[0043] like figure 1 As shown, the rotary hearth furnace 1 is arranged on a...

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Abstract

Provided is a rotary hearth furnace equipped with an eccentric rotation suppression function, with which eccentric rotation of the hearth can be suppressed appropriately during startup and low-temperature operation as well as during high-temperature operation, even when the hearth is large and when the circumferential rotational velocity is increased, and which is compact and has a simple configuration, enabling the installation space and the manufacturing cost to be reduced. This rotary hearth furnace is equipped with: an annular hearth (4) rotationally driven in the horizontal plane on an installation base (2); a ring body (11) provided under the hearth and concentric with the annular hearth; multiple lever arms (12) arranged at equal intervals in a circular fashion on the installation base and having pressure-receiving rollers (16) which are pressed by the ring body in response to displacement of the hearth within the horizontal plane; and spring units (17) which are provided on the installation base, and bias the lever arms so as to push back against the ring body in response to the pressing of the pressure-receiving rollers of the lever arms.

Description

technical field [0001] The present invention relates to a large hearth, and also to a rotary hearth furnace with a function of suppressing eccentric rotation, even if the rotational peripheral speed is increased, within the range from the start-up of the furnace to low-temperature operation and high-temperature operation , the eccentric rotation of the hearth can also be suppressed appropriately, and the compact and simple structure can also suppress the installation space and production cost. Background technique [0002] Patent Documents 1 to 6 are known as related technologies of the rotary hearth furnace. In the "reduced iron discharge device of the rotary hearth type reduction furnace" of patent document 1, the reduced iron on the rotary hearth is scooped up from the front side by the impeller covering the entire width of the rotary hearth, and is installed in the impeller. It falls on the vibrating conveyor belt and is discharged from the discharge port to the outside...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B9/16F27B9/30
CPCF27B9/16F27B9/30
Inventor 岛田笃
Owner CHUGAI RO CO LTD
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