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Arrangement for supporting a rotary drum

A technology of rollers and supports, applied in the field of arrangement of rotating drums, can solve the problems of difficult arrangement of spring devices and limited available space, and achieve the effects of small eccentricity and reduced investment and effort.

Inactive Publication Date: 2018-09-28
HOLCIM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] A further disadvantage of prior art bearing arrangements is that spring means such as hydraulic cylinders are difficult to arrange in the area below the rollers due to the limited available space

Method used

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  • Arrangement for supporting a rotary drum
  • Arrangement for supporting a rotary drum
  • Arrangement for supporting a rotary drum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] exist figure 1 , the shell of the rotary kiln 1 is represented by 2. The rotary kiln 1 has three rolling rings 3 , 4 and 5 arranged in a distributed manner along the axial direction of the rotary kiln 1 . Each ring 3 , 4 , 5 is supported by a pair of rollers 6 . The housing 2 of the rotary kiln has a crank 7 which has a shape deviated from straightness in the middle region of the kiln 1 . Such as figure 1 As shown in , the crank 7 enters an upper position during the rotation of the kiln 1 about its axis 8 , in which the intermediate races 4 of the kiln 1 can be lifted from the associated support rollers 6 in extreme cases. This has the result that the rollers 6 supporting the intermediate ring 4 are subjected to much lower loads than the corresponding nominal design loads or even no load at all, while the rollers 6 associated with the outer rings 3 and 5 have to be subjected to correspondingly higher loads. exist figure 2 , the crank 7 (after half a turn) is shown...

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PUM

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Abstract

In an arrangement for supporting a rotary drum, in particular a rotary kiln (1) of a cement manufacturing installation, the rotary drum having at least three riding rings (3, 4, 5) distributedly arranged along the axial direction of the rotary drum, the arrangement comprising a pair of relatively spaced rollers (6) for supporting a riding ring (3, 4, 5), at least one bearing (10) for each roller (6), a support (11) for each bearing (10) mounted for movement of the roller (6) toward and away from the shell (2) of the rotary drum and spring means (15) exerting a spring force acting on the support (11) so as to counteract the weight (17) of the rotary drum resting on the rollers (6), the spring means (15) comprise a pressure vessel (18) charged with a compressed gas (26) that exerts the spring force.

Description

technical field [0001] The invention relates to an arrangement for supporting a rotary drum of a rotary kiln, in particular a cement manufacturing plant, said rotary drum having at least three riding rings arranged distributed along the axial direction of the rotary drum, The arrangement comprises: a pair of oppositely spaced rollers for supporting the races; at least one bearing for each roller; a support for each bearing mounted for the rollers towards and away from the shell of the rotating drum movement; and spring means, which exert a spring force acting on the support so as to counteract the weight of the rotating drum resting on the rollers. Background technique [0002] Arrangements of this type are disclosed in US 2,551,774 and US 4,171,949. [0003] As mentioned in US 4,171,949, rotating drums such as rotary dryers, tube mills, trommels, and especially rotary kilns are usually supported by roller supports. Rotating drums are often provided with two or more annula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B7/22F16C13/04F27B7/42
CPCF16C13/04F27B7/2206F27B7/42F27B2007/228F16C19/507F27B7/22F27B2007/2253F27B2007/261
Inventor T.司图特兹
Owner HOLCIM LTD