An annealing furnace insulation board device
A heat insulation board and annealing furnace technology, applied in the direction of lining repair, etc., can solve the problems of difficult construction, high maintenance cost, and long maintenance engineering hours, and achieve the goal of reducing construction difficulty and maintenance cost, and reducing maintenance man-hours and workload Effect
Active Publication Date: 2016-08-10
宝钢日铁汽车板有限公司
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Problems solved by technology
The use of heat insulation panels of this structure will make the entire maintenance project a long time, a large amount of work, difficult construction, and high maintenance costs
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[0032] The annealing furnace insulation board device of the present invention will be further explained and described below in conjunction with the accompanying drawings and specific embodiments.
[0033] image 3 It shows the structure of the annealing furnace insulation board device in one embodiment according to the present invention, Figure 4 Its top-view cross-sectional structure is shown. Such as image 3 and Figure 4 As shown, the annealing furnace heat insulation board device of this embodiment includes: a heat preservation box 32, two hollow support rods 31 set through the heat preservation box, and cooling pipes 30 coaxially arranged in the support rods 31, wherein each The root support rods 31 are all formed by connecting two support rods in sections, and the heat preservation box 32 is composed of three sections of heat preservation box sections connected in sequence in the axial direction.
[0034] Figure 5 It further shows the structure of the support rod...
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A disclosed annealing-furnace thermal-insulation plate apparatus comprises a thermal-insulation box body and a support rod penetrating the thermal-insulation box body; the support rod comprises at least two support-rod segments in connection; and the thermal-insulation box body comprises at least two thermal-insulation box body segments along the length direction of the support rod. Because the annealing-furnace thermal-insulation plate apparatus can be installed from the interior of an annealing furnace to the exterior of the annealing furnace when being replaced on the annealing furnace, the annealing-furnace thermal-insulation plate apparatus has a relatively small external space requirement compared with a conventional annealing-furnace thermal-insulation plate apparatus when being replaced on an annealing furnace. A support beam outside a furnace wall is not influenced when the annealing-furnace thermal-insulation plate apparatus applied to an annealing furnace is replaced, so that dismounting of a furnace roller, a furnace-roller bearing pedestal and the support beam is avoided, thereby substantially reducing unkeeping man-hour and workload, and reducing construction difficulty and unkeeping cost.
Description
technical field [0001] The invention relates to a heat insulating board device, in particular to an annealing furnace heat insulating board device. Background technique [0002] The annealing furnace is a metal heat treatment furnace. Due to the high furnace temperature in the heating section of the annealing furnace, the heat radiation generated by the radiant tube and the cold strip steel that has just entered the furnace work together to produce serious thermal shocks on the furnace rolls. The end is heated by heat radiation to produce greater expansion, while the middle of the furnace roll has a lower contact temperature with the cold strip steel, and the expansion is small, so that the furnace roll has a negative crown. [0003] In view of the above-mentioned problem of negative crown of the furnace roll, two solutions are generally adopted: one is to increase the initial convexity of the furnace roll at the entrance to prevent the negative crown of the furnace roll dur...
Claims
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IPC IPC(8): C21D1/26F27D1/16
Inventor 强晓彬王鲁顾希成仇汉昌
Owner 宝钢日铁汽车板有限公司