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Waste metal pipeline cutting device in chimney of radioactive plant

A technology for scrap metal and pipe cutting, applied in the direction of pipe shearing device, shearing device, metal processing equipment, etc., to achieve the effect of reducing volume

Inactive Publication Date: 2019-08-06
CHENGDU NANFANG ELECTRONICS METER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] 1. Cutting and dismantling of complex metal structures in long and narrow spaces

Method used

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  • Waste metal pipeline cutting device in chimney of radioactive plant
  • Waste metal pipeline cutting device in chimney of radioactive plant
  • Waste metal pipeline cutting device in chimney of radioactive plant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A cutting device for waste metal pipes inside the chimney of a radioactive factory building. In order to facilitate the cutting of vertical pipes by the pipe cutting device 37, the pipe cutting device 37 includes a fixed ring 33 on which a rotatable inner ring gear 34 is installed. The ring gear 34 is connected with the swivel ring 36, at least two clamping devices 35 for holding the chimney pipe are installed on the fixed ring 33, and at least one cutting device 37 for cutting the chimney pipe is installed on the rotating ring.

[0045] Wherein clamping device 35 can adopt present common clamping mechanism, clamps as hydraulic pressure / pneumatic / leading screw / rack retractable mechanism, because it is the prior art not repeating here, cutting device 37 can adopt cutting wheel 376, Mechanisms such as cutter and cutting disc are realized. The pipe cutting device 37 is set on the pipe, and after the clamping device 35 on the fixed ring 33 holds the fixed pipe tightly, the ...

Embodiment 2

[0047] A cutting device for waste metal pipes inside the chimney of a radioactive factory building. In order to facilitate the cutting of vertical pipes by the pipe cutting device 37, the pipe cutting device 37 includes a fixed ring 33 on which a rotatable inner ring gear 34 is installed. The ring gear 34 is connected with the swivel ring 36, at least two clamping devices 35 for holding the chimney pipe are installed on the fixed ring 33, and at least one cutting device 37 for cutting the chimney pipe is installed on the rotating ring.

[0048] Further, in order to facilitate the hanger of the pipe cutting device 37, the fixed ring 33 is connected to the hanger 31 through the sling 32, and the hanger 31 is connected to the steel rope of the hoist.

[0049] Further, in order to facilitate the clamping movement of the clamping device 35, the clamping device 35 includes a clamping bracket 351 fixed on the fixing ring 33, and a clamping disc 355 is installed on the clamping bracket...

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Abstract

The invention relates to the field of decommission of a radioactive plant chimney, and discloses a waste metal pipeline cutting device in a chimney of a radioactive plant. The device comprises a fixedring, wherein a rotatable inner gear ring is installed on the fixed ring, the inner gear ring is connected to the rotating ring, at least two clamping devices used for holding a chimney pipeline areinstalled on the fixed ring, and at least one cutting device used for cutting the chimney pipeline is installed on the rotating ring. According to the waste metal pipeline cutting device, the clampingmechanism and the cutting mechanism are adopted to simultaneously work for pipeline cutting; after the pipeline is cut, the cut pipeline is positioned by the clamping mechanism, so that the subsequent hoisting and transporting process is simplified.

Description

technical field [0001] The invention relates to the field of chimney decommissioning of radioactive factory buildings, in particular to a cutting device for waste metal pipes inside the chimney of radioactive factory buildings. Background technique [0002] The chimney of radioactive plant is an important supporting facility of nuclear facilities, mainly used for the discharge of gaseous effluents. Exhaust chimneys will inevitably be radioactively polluted during the operation of nuclear facilities. Therefore, when this type of chimney is facing decommissioning, it is necessary to consider both industrial safety and radiation safety, which brings great challenges to decommissioning activities. [0003] As early as the last century, the domestic 821 factory and China Nuclear Power Research and Design Institute and other nuclear-related units established a number of elevated chimneys to discharge radioactive waste gas. Although the specific activity of the radioactivity in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D21/04
CPCB23D21/04
Inventor 王旭东陈坤刘阳罗飞马其钊蒋忠霖肖爱练
Owner CHENGDU NANFANG ELECTRONICS METER CO LTD
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