Dry quenching expansion joint firebrick structure construction technology

A construction process and technology of expansion joints, which are used in coke ovens, petroleum industry, coke cooling, etc., can solve problems such as inconvenience of expansion joints, and achieve the effect of reducing maintenance costs and shortening construction time.

Active Publication Date: 2011-11-16
MCC5 GROUP CORP SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, there are above-mentioned inconveniences and problems in the known way of changing new expansion joints.

Method used

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  • Dry quenching expansion joint firebrick structure construction technology
  • Dry quenching expansion joint firebrick structure construction technology
  • Dry quenching expansion joint firebrick structure construction technology

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with embodiment and accompanying drawing.

[0027] The CDQ expansion joint refractory brick structure construction process of the present invention can be constructed according to the flow chart of the main construction process for CDQ expansion joint maintenance listed in Table 1.

[0028] see now Figure 2 to Figure 4 , figure 2 Change the expansion joint of the present invention into a structural representation of refractory bricks, image 3 It is a schematic diagram of changing the section structure of the expansion joint side wall of the present invention, Figure 4 It is a structural schematic diagram of the refractory brick at the top of the expansion joint of the present invention. As shown in Table 1, when the CDQ expansion joint refractory brick structure construction process of the present invention is implemented, it is first necessary to survey the site, retain the bottom structure of ...

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Abstract

The invention relates to a dry quenching expansion joint firebrick structure construction technology. According to the invention, a bottom structure and metal casings on the two sides are reserved, and a dry quenching expansion joint filling compound structure is changed into a firebrick structure. The construction technology is characterized in the following steps that: (a) arc bellows on the top of the expansion joint and rest filling compound are dismounted; (b) anchorages and filling compound on the two sides of the expansion joint are dismounted, until an expansion joint bottom level is reached; (c) dilatation joints (28) are arranged; (d) firebrick walls are constructed on the two sides of the expansion joint; (e) an arc firebrick structure and heat-insulating bricks are constructed on the top of the expansion joint; (f) a protection sleeve is welded. With the dry quenching expansion joint firebrick structure construction technology provided by the invention, dilatation joint dimension, air tightness and high temperature resistance of the expansion joint can be ensured; axial displacement of the expansion joint can be presented; thermal shock stability and air-flow scouring resistance of the inner refractory material lining of the expansion joint can be improved; service life of the expansion joint can be prolonged; maintenance cost can be greatly reduced; and construction time can be reduced.

Description

technical field [0001] The invention relates to a construction method for overhauling a kiln, in particular to a construction process for a CDQ expansion joint refractory brick structure. Background technique [0002] CDQ expansion joints are customarily also called expansion joints, or compensators. The main body of its work is composed of bellows (an elastic element) and accessories such as end pipes, brackets, flanges, and conduits. Utilize the effective expansion and contraction deformation of the bellows of its working body to change the axial size change of the primary dedusting furnace body due to thermal expansion and contraction. The design of the expansion joint is very complicated. Now the design often only calculates and checks some parameters, such as pressure resistance, stress caused by displacement, fatigue life, stiffness and stability, but rarely involves the refractory material of the expansion joint. The refractory material of the expansion joint is a c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B39/02
Inventor 任社安王建杨勇蔡伟王志宏谭春华袁杰平
Owner MCC5 GROUP CORP SHANGHAI
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