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Air-cooled hearth roll

A hearth roll, air-cooled technology, applied in the field of hearth rolls, can solve problems such as waste of fuel, difficult maintenance, large investment in circulating water systems, etc., to reduce fuel loss, reduce equipment investment, and improve bearing working conditions Effect

Inactive Publication Date: 2016-06-22
孙萍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the water-cooled hearth roller is that the circulating water takes away a lot of heat, wastes fuel, and the circulating water system requires a large investment and is difficult to maintain

Method used

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  • Air-cooled hearth roll

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Embodiment Construction

[0012] The present invention will be further described below according to the accompanying drawings and in conjunction with the embodiments.

[0013] The air-cooled hearth roller shown in the accompanying drawings includes a roller 5, a sleeve 7, and a roller shaft 1 fixedly connected to the holes at both ends of the roller 5; the sleeve 7 is fixedly connected between the two roller shafts 1, and its The inner hole communicates with the shaft holes 1.1 of the two roller shafts 1 to form a cooling air duct.

[0014] The end of the connecting end of the roller shaft 1 and the roller 5 is provided with a heat insulating structure 3; the heat insulating structure 3 is arranged in the cavity inside the end face of the connecting end of the roller shaft 1 and the roller 5, including a heat insulating filler 3.1 and a baffle 3.2 The baffle plate 3.2 is sealed and connected to the inside of the inner cavity of the end surface connecting the roller shaft 1 and the roller 5, and the hea...

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Abstract

The invention discloses an air-cooled hearth roll. The air-cooled hearth roll comprises a roll cylinder, a sleeve, and roll shafts fixedly connected in two end holes of the roll cylinder; the sleeve is fixedly connected between the two roll shafts, and the inner hole of the sleeve is connected with the shaft holes of the two roll shafts to form a cooling air channel; the end portion of one end of each of the roll shafts connected with the roll cylinder is provided with a heat insulation structure; the heat insulation structure is arranged in a cavity at the inner side of the end surface of one end of the corresponding roll shaft connected with the roll cylinder, and comprises a heat insulation filler and a baffle plate; the baffle plate is in sealing connection to the inner side of a cavity at the inner side of the end surface of one end of the corresponding roll shaft connected with the roll cylinder, and a cavity between the baffle plate and the end surface of one end of the corresponding roll shaft connected with the roll cylinder is filled with the heat insulation filler; and the heat insulation filler is alumina silicate fibers. The air-cooled hearth roll adopting an air cooling system and cancelling a water circulation cooling system has the advantages of low fuel loss, low device investment and low device maintenance.

Description

technical field [0001] The invention relates to heat treatment equipment, in particular to a hearth roller. Background technique [0002] At present, the hearth rolls of the strip hot-dip galvanizing heating furnace are mostly cooled by water, so as to prevent the hearth rolls from deforming at high temperatures. The disadvantage of the water-cooled hearth roller is that the circulating water takes away a lot of heat, wastes fuel, and the circulating water system requires a large investment and is difficult to maintain. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention proposes an air-cooled hearth roller capable of canceling the water circulation cooling system, significantly reducing fuel consumption, reducing equipment investment and simplifying equipment maintenance. [0004] The present invention achieves technical goals through the following technical solutions. [0005] The air-cooled hearth roller includes a rol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/54
Inventor 孙萍
Owner 孙萍
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