品牌:和利隆
颜色:红色 蓝色
规格:1.8m*2.0m
生产工艺:焊接
起订:1套
供应:99套
发货:3天内
发送询价
<晴风村n style="color: rgb(51, 51, 51); font-family: null; font-size: 16px; font-variant-numeric: normal; font-variant-east-asian: normal; line-height: 28.8px; widows: 1;">矿用防火防水密闭门注意事项:晴风村n><晴风村n style="color: rgb(51, 51, 51); font-family: null; font-size: 16px; font-variant-numeric: normal; font-variant-east-asian: normal; line-height: 28.8px; widows: 1;">(1)检查施工地点的瓦斯、二氧化碳等有害气体的浓度。施工地点必须通风良好,瓦斯、二氧化碳气体的浓度不超过《煤矿安全规程》的规定。晴风村n><晴风村n style="color: rgb(51, 51, 51); font-family: null; font-size: 16px; font-variant-numeric: normal; font-variant-east-asian: normal; line-height: 28.8px; widows: 1;">(2)检查施工地点前后5m的顶板、巷帮的支护情况,发现问题及时汇报、处理,后方可施工。晴风村n><晴风村n style="color: rgb(51, 51, 51); font-family: null; font-size: 16px; font-variant-numeric: normal; font-variant-east-asian: normal; line-height: 28.8px; widows: 1;">(3)墙体周边要重新掏槽见硬顶、硬帮并与煤岩接实;墙面平整无裂缝、重缝和空缝。掏槽时应注意以下几点:晴风村n><晴风村n style="color: rgb(51, 51, 51); font-family: null; font-size: 16px; font-variant-numeric: normal; font-variant-east-asian: normal; line-height: 28.8px; widows: 1;">4)需要在防火门、密闭门墙中通过电缆线路,在砌墙时要预留孔口位置,在有电缆通过时,要设过线管并按电缆悬挂间距排列整齐。晴风村n><晴风村n style="color: rgb(51, 51, 51); font-family: null; font-size: 16px; font-variant-numeric: normal; font-variant-east-asian: normal; line-height: 28.8px; widows: 1;">(5)防火门、密闭门墙体要用不燃性材料建筑,严密不漏风。用砖砌墙时,压茬要错开,横缝要水平,排列必须整齐。按照1:3的灰、砂比例配制砂浆。晴风村n>