Construction method for replacing cooling wall of blast furnace by utilizing movable hanging scaffold
A technology of movable hanger and construction method, applied in the direction of cooling device, etc., can solve the problems of long occupation time, unfavorable safety construction and high cost, and achieve the effect of shortening construction time, improving installation efficiency and low cost
Active Publication Date: 2012-09-05
BEIJING SHOUGANG CONSTR GROUP
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Problems solved by technology
[0004] The purpose of the present invention is to provide a construction method for replacing the cooling stave of a blast furnace by means of a movable hanging pan, which solves the problem of installing large-tonnage objects in a three-dimensional space, and solves the problems of low efficiency and unfavorable safety construction in the traditional multi-layer platform. The problem of high cost and relatively long occupation of the total construction period; on the basis of ensuring construction safety, the construction progress is accelerated, the cost is reduced, and the time occupied by the total construction period is shortened
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[0024] 1. Production of movable hanging pan
[0025] The movable hanging pan is made at the bottom of the blast furnace, and the bottom of the furnace is first leveled to meet the conditions for making the movable hanging pan. Make the main beam 1, which is welded into a square frame shape by four equal-length I-beams; make the ring beam 4, which is rolled by channel steel, and then welded to the main beam 1, and the top of the main beam 1 and the ring beam 4 are kept on the same plane Inside; the fixed arm 2 is assembled and welded with channel steel, which is welded on the central tube 5, and then welded with the main beam and the ring beam, and the telescopic arm 3 will be inserted into the fixed arm 2 at the same time. The movable suspension frame is formed like this. After the movable hanging pan frame is formed, the platform steel plate 6 is laid, and the position of the hanging point 8 will be reserved at the same time, and finally the plank 7 is fastened. In this way...
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The invention discloses a construction method for replacing a cooling wall of a blast furnace by utilizing a movable hanging scaffold, belonging to the technical field of blast furnace construction. After the movable hanging scaffold is manufactured at the bottom of the blast furnace, a lifting sling of the movable hanging scaffold is arranged; the movable hanging scaffold is lifted to a positionwhere the cooling wall is installed; a winch is locked; and then a safety rope is locked; then, the cooling wall can be installed; and meanwhile, the movable hanging scaffold can also be stretched ina radial way so as to satisfy requirements at different diameter positions in the blast furnace. The problem that large-tonnage objects are installed in a cubical space is solved. The problems of lowefficiency, non-advantageous safety construction, high cost and long total construction time by building a plurality of platforms traditionally can be solved. On the basis of ensuring construction safety, the construction progress is accelerated; the cost is reduced; and the total construction time is shortened.
Description
technical field [0001] The invention belongs to the technical field of blast furnace construction, and particularly relates to a construction method for replacing a cooling wall of a blast furnace by means of a movable hanging pan, which is suitable for engineering construction of installing cooling walls of blast furnaces under construction and replacing cooling walls in a large area during maintenance of blast furnaces. Background technique [0002] For the on-site construction conditions of blast furnace stave replacement, platforms are generally built layer by layer to replace staves, that is, to replace a circle of staves, a temporary operating platform needs to be erected, so the temporary facilities required for the replacement of multi-layer water tanks are very cumbersome . [0003] The above traditional construction methods have the following problems: time-consuming and labor-intensive, low work efficiency, low safety factor due to the small construction site, hig...
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IPC IPC(8): C21B7/10
Inventor 李国明李镜淮张学军
Owner BEIJING SHOUGANG CONSTR GROUP