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平顶山焦化公司硫铵工段的硫铵母液泵机械密封因受母液的冲刷、腐蚀,需每月更换一次,虽经多次改造,效果都不理想.最初,母液泵采用不锈钢机械密封,使用寿命只一个月,维护费用较高;后改为耐酸盘根密封、塑料密封,均易泄漏、寿命短.现改用旧胶质运输带密封,效果相当理想.1改造方案(1)用旧胶质运输带,按原机械密封外径,用皮带刀割成相应大小的方块;(2)车一个与轴套外径相同的专用工具,如图1,其中d等于轴套外径;D为工具固定端直径,其尺寸要小于机械密封外径.(3)在方块胶垫上钻直径与轴套外径相同的孔,然后将数个胶垫一起套在专用工具上,用压板和螺母压紧.(4)将胶垫外径车成与机械密封外径相等的标准圆
The ammonium sulfate mother liquor pump mechanical seal in the ammonium sulfate section of Pingdingshan Coking Company needs to be changed once a month due to the wash and corrosion of the mother liquor, and the results are not satisfactory after many times of modification. At first, the mother liquor pump is sealed with stainless steel and has a service life of only A month, high maintenance costs; after the change to acid packing, plastic seal, are easy to leak, short life expectancy. Now use the old gel conveyor belt seal, the effect is quite satisfactory .1 transformation program (1) Transport belt, according to the original mechanical seal diameter, with a knife with a belt cut into the appropriate size of the box; (2) a car with the same outer diameter sleeve tool, shown in Figure 1, where d is equal to the outer diameter of the sleeve; D is the tool The diameter of the fixed end, its size is smaller than the outer diameter of the mechanical seal. (3) Drill in the square hole diameter and diameter of the sleeve the same diameter, and then put together a few pads on a special tool, with the pressure plate and nut (4) The outer diameter of the rubber pad into a mechanical seal with the outer diameter of the standard circle