HTfurnacerepairreport

1、Page. 0 / 9 Heat treatment furnace repair reportPage. 1 / 9HT Furnace Repair Report1. Clean the HT furnace car 清理熱處理爐臺車 Fig. 1 Before cleaning Fig.2 After cleaning 圖1 清理前 圖2 清理后Heating element 電阻帶After cleaning 清理后 Take all of the on the car. things away, includes heating elements bricks, then we ca

2、n see most of the oxide skin come from cover plates. 清理臺車上所有的東西，包括電阻帶和耐火磚。我們可見，絕大部分氧化皮是來自電阻帶蓋板的。Scale cinder 氧化皮Page. 2 / 9HT Furnace Repair Report2. Rebuild the car 重砌臺車2.1 Build the circum and bottom bricks first 首先砌四周和底部耐火磚 Its very important that we should keep all of the bricks horizontally, an

3、d put some fire-resistance fiber between bricks to keep a gap. 保持所有耐火磚水平非常重要，并在磚之間放置耐火棉以保持間隙。 Fig. 3 Build bottom and circum bricks Fig. 4 Use fiber to keep the elastic gap 砌臺車底部和四周磚 用耐火棉以保持伸縮間隙Fire-resistance fiber 耐火纖維棉Bottom bricks臺車底磚Circum bricks四周耐火磚Page. 3 / 9HT Furnace Repair Report2.2 Build

4、 grid 砌網(wǎng)格 Fig. 5 Building big grid Fig.6 Build small grid for heating element 圖5 砌大網(wǎng)格 圖6 砌放置電阻帶的小網(wǎng)格After building a layer of bottom bricks, we can build grid for heating elements.在底層的耐火磚后，再砌放置電阻帶的網(wǎng)格。Be careful of the height, see Fig.6, it should be the thickness of the fiber and the cover plate toge

5、ther.注意高度，預留高度應(yīng)正好是耐火棉和電阻帶蓋板厚度之和。Height should be calculate first首先計算好高度差Fiber耐火棉Page. 4 / 9HT Furnace Repair Report2.3 Put heating element and the cover plates 放置電阻帶和蓋板 Fig. 7 Ceramic chips among heating elements Fig. 8 Put fiber before putting cover plates 圖7 電阻帶間的陶瓷片 圖8 放蓋板前鋪耐火棉 HeightWe should pu

6、t some ceramic chips to keep heating elements isolated, see Fig. 7.我們應(yīng)在電阻帶之間放置一些陶瓷片，以防止它們變形后接觸,見圖7。Ceramic chips（2 pcs） 陶瓷片(2片)Cover plates 蓋板Heating element電阻帶Page. 5 / 9HT Furnace Repair Report3. Demolish the fiber and heating elements on 3 walls 拆除3面墻上的耐火棉和電阻帶 Fig. 9 3 walls before demolish Fig.

7、10 After removing fiber 圖9 3面墻拆除前 圖10 拆除耐火棉后We can see that its very dirt on heating elements. We should clean them once per month at least.我們能看到電阻帶上非常的臟。我們至少要每月清潔一次。Ceramic pipes are broken 陶瓷管已壞Page. 6 / 9HT Furnace Repair Report4. Assemble the fiber 安裝耐火棉Fig. 11 Fix the fiber 圖11 安裝耐火棉Fiber blank

8、et 耐火毯Fiber module 耐火塊We can see works fix fiber modules and fiber blankets in turn.可以看到，工人是交替安裝耐火塊和耐火毯的。The heating element will be welded to these bars 電阻帶將會焊接到這些桿上的Page. 7 / 9HT Furnace Repair Report5. Fix the heating elements 安裝電阻帶 Fig. 12 Pined on wall first Fig.13 After been fixed 圖12 先簡易固定住 圖

9、13 安裝好后We should replace the stainless steel bars and ceramic pipes before we fix the heating elements. 在安裝電阻帶前，需更換不銹鋼棒和陶瓷管。Page. 8 / 9HT Furnace Repair Report6. Fix electrical elements 安裝電氣元件Its very important for us to check these electrical elements once a month. Or else, it could be dangerous to the operator. 每月都要檢查這些電氣元件，對我們非常重要。否則，可能操作者是危險的。Page. 9 / 9HT Furnace Repair Report7. Detection and test 檢測并試用When we heat up to 1150, the curve is smooth, and the tim