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Embedding and fixing structure and embedding method for coal gas down-spraying pipes in coke oven foundation top plate

A fixed structure, gas technology, applied in the direction of the furnace foundation, etc., can solve the difficult problems such as the installation position accuracy of the gas nozzle, and achieve the effect of precise positioning and fixing

Pending Publication Date: 2021-02-19
CHINA THIRD METALLURGICAL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

During the embedding process of the gas downpipe, if positioning reinforcement measures are not adopted, it is difficult to ensure that the installation position accuracy of the gas downpipe meets the requirements of relevant technical documents

Method used

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  • Embedding and fixing structure and embedding method for coal gas down-spraying pipes in coke oven foundation top plate
  • Embedding and fixing structure and embedding method for coal gas down-spraying pipes in coke oven foundation top plate
  • Embedding and fixing structure and embedding method for coal gas down-spraying pipes in coke oven foundation top plate

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Embodiment Construction

[0028] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0029] Such as Figure 2-Figure 5 As shown in the present invention, a coke oven foundation roof inner gas nozzle embedded fixed structure, including embedded casing 11, expansion bolts 5, fixed beams 6, upper fixed frame 1 and lower fixed frame 8; A plurality of embedded casing pipes 11 are buried in the foundation roof 4, and the axes of the embedded casing pipes 11 correspond to the center line of the installation position of the gas lower nozzle 9 one by one; the expansion bolts 5 are fixed on the foundation roof at multiple intervals 4, the top of the expansion bolt 5 extends out of the foundation roof 4 and is connected with the fixed beam 6; the fixed beam 6 is fixedly connected with the upper fixed frame 1, as figure 1 As shown, a plurality of control round holes 2 are opened on the upper fixed frame 1, and grouting holes 3 are arranged o...

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Abstract

The invention relates to an embedding and fixing structure and an embedding method for coal gas down-spraying pipes in a coke oven foundation top plate. Embedded sleeves are embedded in a foundation top plate, and the tops of expansion bolts extend out of the foundation top plate to be connected with a fixing cross beam; the fixing cross beam is fixedly connected with an upper fixing frame, a plurality of control round holes are formed in the upper fixing frame, and grouting holes are formed in the outer sides of the control round holes; after the upper fixing frame is fixed, the axes of the control round holes are coaxial with the axes of the embedded sleeves; a bottom formwork is arranged at the bottom of the foundation top plate, and a lower fixing frame is fixedly connected with the bottom formwork; and when coal gas down-spraying pipes are embedded, the lower ends of the coal gas down-spraying pipes sequentially penetrate through the control round holes in the upper fixing frame,the embedded sleeves and through holes in the bottom formwork and then extend to set positions, and the lower fixing frame is detachably and fixedly connected with the lower portions of the coal gas down-spraying pipes. Accurate positioning and fixing during rear-mounted embedding of the coal gas down-spraying pipes can be achieved, and it is guaranteed that the installation positions of the coalgas down-spraying pipes meet the design requirement.

Description

technical field [0001] The invention relates to the technical field of coke oven construction, in particular to a fixed structure and an embedding method for gas lower nozzles embedded in the top plate of a coke oven foundation. Background technique [0002] At present, in the construction process of the coke oven foundation roof, the construction method of post-embedding the gas nozzle is often used, that is, the pre-buried casing is set in the foundation roof and concrete is poured, and then the coke oven gas is lowered after the nozzle as required. Embedded in the foundation roof, after the completion of secondary grouting, embedding. The burial of the lower gas nozzle requires accurate horizontal position (allowable error ± 1mm) and accurate pipe top elevation (allowable error 3mm). During the embedding process of the gas downpipe, if positioning reinforcement measures are not taken, it is difficult to ensure that the installation position accuracy of the gas downpipe m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B29/08
CPCC10B29/08
Inventor 孙磊邓宏伟李亚东
Owner CHINA THIRD METALLURGICAL GRP
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