A composite tapping furnace kang structure for heating furnace and its construction method
A heating furnace and steel furnace technology, applied in heat treatment furnaces, furnaces, manufacturing tools, etc., can solve the problems of lack of wear resistance and structural perspective, considering the service life of materials, not suitable for large-scale promotion and application, and inconsistent wear of upper and lower structures. , to achieve the effect of good quenching and quenching performance characteristics, simple structure, easy disassembly and assembly
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Embodiment 1
[0027] Such as Figure 1-3 As shown, a composite tapping furnace structure for a heating furnace includes a wear-resistant layer 1 and a base layer 2 arranged under the wear-resistant layer 1. The wear-resistant layer 1 is composed of zirconium corundum bricks 3 and chromium corundum bricks 4. The ratio of the number of chromium corundum bricks 3 to zirconia corundum bricks 4 is 8:2, and the base layer 2 is made of high-strength wear-resistant castables.
[0028] The kang structure is located on the tapping side of the heating furnace, with an overall width of 500-700mm, a length of 7000-10000mm, a thickness of 1000-1200mm, an operating temperature range of 1150-1450°C, and a bulk density of 2.4-4.1cm 3 / g, the Mohs hardness is 6.5-9.0, and the wear amount is 0.05-0.1㎡ / kg.
[0029] The wear-resistant layer 1 has a thickness of 260-320mm, a length of 7000-10000mm, an operating temperature range of 1150-1450°C, and a bulk density of 3.2-4.1cm 3 / g, the Mohs hardness is 8.5-9.0...
Embodiment 2
[0042] A construction method for a composite tapping kang structure for a heating furnace mainly includes the following steps:
[0043] (1) Integral pouring: with the bottom concrete of the heating furnace as the bottom, and the furnace wall 7 as the lateral mold, the high-strength wear-resistant castable is used for integral pouring of the base layer;
[0044] (2) Heat preservation and maintenance: After the pouring is completed, heat preservation and maintenance are carried out on the base layer 2, the curing temperature is 5-30°C, and the curing time is 10-15 days;
[0045] (3) Level adjustment: After the base layer 2 is hardened, use high-strength wear-resistant castable micropowder to adjust the level, so that the overall height difference of the upper surface of the base layer 2 is ≤1mm;
[0046] (4) Masonry wear-resistant layer 1: Zirconium corundum bricks 3 and chrome corundum bricks 4 are built on the base layer 2 to form a wear-resistant layer 1 .
[0047] In step (...
Embodiment 3
[0052] Taking the width direction of the steel billet 5 as the longitudinal direction and the length direction of the steel billet 5 as the axial direction, the length and width of the kang structure itself are larger than the size of the steel billet 5. In this embodiment, the carbon steel billet of 140×140×6000mm is heated The furnace is the object of implementation, and the size of the kang structure itself is preferably 1000㎜ (height) × 580㎜ (width) × 7000㎜ (length).
[0053] In this embodiment, preferably the thickness of the kang structure wear-resistant layer 1 is 280 mm, the thickness of the base layer 22 is 720 mm, and the total thickness of the kang is equal to the total height of the kang 1000 mm. Among them, the wear-resistant layer 1 is built in blocks of chrome corundum bricks 4 and 3 zirconium corundum bricks, and the base layer 2 is integrally poured with high-strength castables.
[0054] In this embodiment, when the carbon steel billet reaches the kang structu...
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Abstract
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