Blast Furnace Air Supply Branch Installation Method
An installation method and blast furnace technology, applied to blast furnaces, blast furnace details, blast furnace parts, etc., can solve the problems of cumbersome operation, different lengths of air supply pipes, low opening efficiency and precision, etc., to improve installation efficiency and ensure installation Accuracy and the effect of improving the service life
Active Publication Date: 2021-05-28
SHANGHAI BAOYE CONSTR INDAL FURNACE ENG TECH +1
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Problems solved by technology
[0002] The existing hot blast branch pipe is installed on the hot blast surrounding pipe of the blast furnace. The hot blast branch pipe generally adopts the following installation method: use the fixed mold provided by the air supply branch pipe manufacturer to open the hot blast surrounding pipe, install the short pipe after opening, and then Install the air supply branch pipe. This method uses a fixed mold to open the hole. The operation is cumbersome, the hole opening efficiency and accuracy are low, and the installation accuracy of the short pipe is low, resulting in different lengths of the installed air supply branch pipes, resulting in different air supply volumes at each air outlet. Uniformity makes the air supply branch pipe vulnerable to damage during use, for example, the bellows of the air supply branch pipe is broken and the flange surface leaks, etc., which reduces the service life of the air supply branch pipe
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[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.
[0028] Such as figure 1 As shown, the present embodiment discloses a blast furnace air supply branch pipe installation method, the blast furnace includes a furnace shell 1, the furnace shell 1 is provided with a tuyere 2, and the outside of the furnace shell 1 is connected with a hot air surrounding pipe 3, and the method includes the following steps:
[0029] 1) Install the jig 4 so that one end of the jig 4 abuts against the tuyere 2, and the other end faces the hot air surrounding pipe 3; in order to improve the precision of the subsequent opening.
[0030] After the fixture 4 is installed, a leveling correction is required, and the error of the position of the fixture after le...
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The invention discloses a method for installing an air supply branch pipe of a blast furnace. The blast furnace includes a furnace shell, the furnace shell is provided with a tuyere, and the outside of the furnace shell is connected with a hot air surrounding pipe. The method includes the following steps: installing a fixture and installing a compass on the fixture, And use the compasses to draw a line on the hot air surrounding pipe to locate the opening position; remove the compasses from the fixture; drill holes at the marking position of the hot air surrounding pipe to form the installation hole; fix the short pipe in the corresponding installation hole Middle; remove the clamp, connect one end of the air supply branch pipe to the short pipe, and connect the other end to the air outlet. The invention is easy to operate, can realize rapid marking and positioning of the installation hole, and can ensure the accuracy of opening, which is beneficial to improving the installation accuracy of the short pipe and the air supply branch pipe, and is beneficial to improving the service life of the air supply branch pipe.
Description
technical field [0001] The invention relates to the technical field of blast furnace construction, in particular to a method for installing an air supply branch pipe of a blast furnace. Background technique [0002] The existing hot blast branch pipe is installed on the hot blast surrounding pipe of the blast furnace. The hot blast branch pipe generally adopts the following installation method: use the fixed mold provided by the air supply branch pipe manufacturer to open the hot blast surrounding pipe, install the short pipe after opening, and then Install the air supply branch pipe. This method uses a fixed mold to open the hole. The operation is cumbersome, the hole opening efficiency and accuracy are low, and the installation accuracy of the short pipe is low, resulting in different lengths of the installed air supply branch pipes, resulting in different air supply volumes at each air outlet. Uniformity makes the air supply branch pipe vulnerable to damage during use, fo...
Claims
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IPC IPC(8): C21B9/10C21B7/16
CPCC21B7/163C21B9/10
Inventor 周帅程延华高义明周敏
Owner SHANGHAI BAOYE CONSTR INDAL FURNACE ENG TECH