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Folding cage for hole operation in confined space

A technology of limited space and holes, applied in the direction of lifting devices, etc., can solve the problems of the cage being too large and inaccessible, and achieve the effects of novel design, safety assurance, and firm and reliable connection

Active Publication Date: 2021-03-02
MCC BAOSTEEL TECH SERVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of the size of the manhole door of the absorption tower, the hanging cage suitable for working in the Venturi tube is too large to enter

Method used

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  • Folding cage for hole operation in confined space
  • Folding cage for hole operation in confined space
  • Folding cage for hole operation in confined space

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Embodiment Construction

[0036] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0037] It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the same time, terms such as "upper"...

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Abstract

The invention provides a folding cage for working in a hole in a confined space, which includes a first side plate and a second side plate arranged in parallel, both of the first side plate and the second side plate The side plates are connected by a plurality of connecting rods distributed in parallel, one end of each connecting rod is provided with a first connecting piece, and the other end is provided with a second connecting piece, and each first connecting piece is connected by at least two first bolts on the second connecting piece. On the one side plate, each second connecting piece is connected to the second side plate by at least two second bolts; a bottom plate is also included, and the bottom plate is connected to the lowermost connecting rod. The invention is simple in structure and novel in design. It is convenient to enter and exit the manhole door of the absorption tower by folding the hanging cage.

Description

technical field [0001] The invention relates to the field of inspection and maintenance of holes in confined spaces, in particular to a folding hanging cage for hole operations in confined spaces. Background technique [0002] The dry circulating fluidized bed desulfurization process is widely used in the field of flue gas desulfurization in iron and steel enterprises. The sulfur dioxide in the reaction produces desulfurization ash dust. [0003] One of the most important equipment in the circulating fluidized bed process is the absorption tower system. The untreated flue gas discharged from the boiler enters from the bottom of the absorption tower. There is a Venturi device at the bottom of the absorption tower. After the flue gas flows through the Venturi tube, the speed is accelerated, where it is mixed with very fine absorbent powder, and the gas and particles are strongly rubbed to form a fluidized bed. Under the condition of spraying uniform water mist to reduce the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66F13/00
CPCB66F13/00
Inventor 蔡兴锋陈华何红博潘中华
Owner MCC BAOSTEEL TECH SERVICE
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