The utility model belongs to the field of high temperature electric melting technology of glass products and other inorganic materials, in particular to a direct cooling improved glass electric fused molybdenum electrode protecting water jacket. Outside protective water jacket around the molybdenum electrode, protective jacket comprises a body, top plate, straight cold water retaining plate, a water storing cavity, direct cooling cavity, water inlet pipe, a water storing cavity and direct cooling cavity located in the sleeve body, a water storing cavity is circular structure, its one end is fixed on the top plate, the other one end of the water retaining plate is connected with the direct cooling chamber, a water storing cavity is arranged on the upper part of the water inlet nozzle diffuse, the lower part of the cavity is connected with the inlet pipe, the other end passes through the straight cold water retaining plate, straight cold water retaining plate is provided with a water outlet. The upper water outlet of the water storage cavity of the utility model can be directly poured with a molybdenum electrode, and the water is collected and flowed out at the lower part. The cooling effect of molybdenum electrode is good, and the oxidation risk of molybdenum electrode is reduced. It makes the roof of the water jacket end cool and the refractory material has good performance, and the stability of the structure near the electrode hole is ensured by the strong cooling at the later stage of the furnace.
【技术实现步骤摘要】
本技术属玻璃制品和其它无机材料的高温电熔
,具体涉及一种直冷改进型玻璃电熔钼电极保护水套。
技术介绍
全电熔玻璃熔制技术正在逐渐成为中小型玻璃企业的主要熔制工艺。在采用钼电极的全电熔窑中,钼电极的水冷保护系统,是玻璃全电熔的关键部件。钼电极保护失效将极大影响熔窑的正常操作和玻璃熔制质量。在通常的钼电极保护系统中,主要采用两种水冷保护水套直冷式和间冷式。对于通常的直冷水套,采用的是敞开结构,优点是水从上方浇淋钼电极,对钼电极冷却效果好、水套中的淤积物容易清除;缺点是水套下部存水量少,对水套与耐火材料顶板的冷却作用差,进而对耐火材料的冷却强度弱,不能极大降低电极孔附近耐火材料的温度,极大降低耐火材料的导电系数,耐火材料容易导电发热烧损,尤其是在熔窑运行后期,电极孔附近耐火材料被侵蚀到很薄弱的时候,电极水套不能有足够的冷却强度稳定,电极孔附近的结构,保证熔窑的运行安全。对于通常的间冷水套,采用的是封闭结构,优点是下进水上出水,可以承受较大的水压,水套中是满存水;冷却水套顶板对于耐火材料冷却作用很强,可以极大降低电极孔附近的耐火材料的温度,进而极大降低耐火材料的导电系数,降低耐火材料的导电发热烧损的风险。缺点是冷却水不能直接冷却钼电极,对于钼电极的冷却作用弱,运行时钼电极的温度高,钼电极的氧化失效风险大;同时由于封闭结构,水套内冷却水的淤积物不容易清除。通常的直冷式水套对于钼电极的冷却作用很好,但对于电极孔耐火材料的冷却作用很差,耐火材料容易在电场作用下发热烧蚀,在熔窑后期电极孔附近的结构风险很大。通常的间冷式水套对于钼电极的冷却效果差,钼电极的氧化风险大 ...
【技术保护点】
直冷改进型玻璃电熔钼电极保护水套,保护水套套于钼电极(1)之外,其特征在于保护水套由套体、顶端板(2)、直冷腔挡水板(8)、存水腔(3)、直冷腔(4)、进水管(6)组成,存水腔(3)和直冷腔(4)分别位于套体内,存水腔(3)呈圆环形结构,其一端固定于顶端板(2),另一端通过挡水板(9)与直冷腔(4)相连,挡水板(9)与存水腔(3)顶部内壁之间设有漫水口(5),漫水口(5)位于钼电极(1)上方,存水腔(3)的下部设有进水口(1C);进水管(6)、出水口(7)分别位于钼电极(1)下方,进水管(5)的一端连接存水腔下部的进水口(10),另一端穿过直冷腔挡水板(8),直冷腔挡水板(8)上设有出水口(7)。
【技术特征摘要】
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