Mounting and locating method for changeable air brick
A technology of installation and positioning and ventilation bricks, which is applied in the manufacture of converters, etc., can solve the problems of unable to take out the old ventilation components, the tightness and safety of the ventilation bricks and the converter lining, and the inaccurate installation and positioning of the ventilation bricks. Accuracy and reliability, the effect of ensuring rigor and safety
Active Publication Date: 2009-08-05
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP +1
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Problems solved by technology
[0003] However, in the process of actually implementing the on-line thermal replacement technology for ventilating elements, often due to the inaccurate installation and positioning of the ventilating bricks, it is very difficult for the thermal replacement of the ventilating elements, that is, it is easy to cause the old ventilating elements to be unable to be taken out smoothly and cannot be replaced. Rapid replacement of new venting elements with serious impact on tightness and safety between vent bricks and converter lining
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[0010] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
[0011] like figure 1 As shown, the replaceable ventilating brick 1 involved in the present invention includes a ventilating element 2, a seat block 3 and a cover block 4 sleeved on the ventilating element 2, and one end of the ventilating element 2 close to the seat block 3 is fixed on the mounting flange 5, the mounting flange 5 is fixed on the bottom 6 of the converter.
[0012] The installation and positioning method of the replaceable ventilation brick 1 provided by the present invention firstly determines the installation position of the installation flange 5 for fixing the ventilation brick on the bottom 6 of the converter. Specifically: as figure 2 As shown, first, the vertical centerline OO of the spherical bottom 6 of the converter is determined 1 , in actual operation, this can be obtained by first determining the tangent point between the spherica...
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The invention relates to an installation and positioning method for a replaceable permeable brick. The method comprises the following steps: the installation position of an installation flange is determined; the installation flange is fixed at the bottom of a converter; the permeable element of the permeable brick are fixed on the installation flange, and the central line of the permeable element and the central line of the installation flange are coincident; and the brick cup and the sleeve brick of the permeable brick are sleeved on the permeable element. The steps of determining the installation position of installation flange are as follows: determining the vertical central line of the spherical bottom of the converter; determining the vertical distance between the central point of the upper end surface of the installation flange and the vertical central line of the spherical bottom of the converter; and determining the vertical distance between the central point of the lower end surface of the installation flange and the vertical central line of the spherical bottom of the converter. The permeable brick is installed at the spherical bottom of the combined blowing converter, so the central line of the permeable brick and the normal line of the point of the permeable brick on the spherical converter bottom are coincident, thus the accuracy and the reliability of the installation and the positioning of the permeable brick are improved, the online thermal replacement of the permeable element can be carried out quickly and accurately.
Description
technical field [0001] The invention relates to the field of steel-making metallurgical equipment, in particular to a method for installing and positioning replaceable air-permeable bricks in a spherical furnace-bottom double-blowing converter. Background technique [0002] At present, in the field of steelmaking metallurgy, top and bottom composite blowing technology, that is, top blowing oxygen dephosphorization, decarburization, bottom blowing inert gas to strengthen stirring, to obtain high-quality molten steel smelting technology, due to its good metallurgical effect, so It has been widely used at home and abroad. Among them, the key to realize bottom blowing is a ventilating brick with ventilating element in the center arranged on the bottom of the converter. However, as the core component of the air-permeable brick, the air-permeable element is eroded the fastest during the service of the converter, and often fails to meet the requirements of the furnace age of the w...
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IPC IPC(8): C21C5/44
Inventor 李安林汪波陈永杨素波
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP