Closure for Hoppers for downloading materials in large Masses such as ore, Coal and Stone Foundations.

• 1. 用于从金属硫化物矿石中分离出矸石材料的硬木木质素磺酸盐 [P] . 中国专利： CN101842503B . 2013.06.05
• 2. 用于从金属硫化物矿石中分离出矸石材料的硬木木质素磺酸盐 [P] . 中国专利： CN101842503A . 2010-09-22
• 3. Closing the hoppers to the unloading of large masses, for example of the ore, coal, crushed, etc. [P] . 法国专利： FR19695E . 1915-05-05

  机译： 关闭料斗以卸去大块物料，例如矿石，煤炭，压碎物料等。

• 4. Closing the hoppers to the unloading of large masses, for example of the ore, coal, crushed, etc. [P] . 法国专利： FR431656A . 1911-11-16

  机译： 关闭料斗以卸去大块物料，例如矿石，煤炭，压碎物料等。

• 5. Closing the hoppers, called trappelle, to the unloading of large masses, such as the ore, brushes and other similar materials [P] . 法国专利： FR469654A . 1914-08-06

  机译： 关闭料斗（称为活梯），以卸载大块物料，例如矿石，刷子和其他类似物料

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• 7. Rockwell Coal Lock Hopper Valve: METC SOA Test Valve No. A-16. State-of-the-ART Lock Hopper Valve Testing and Development Project. Summary Test Report [R] . Gardner, J. R., Hall, R. C., Hornbeck, R. G., 1980

• 1. Study on the multi-sources of ore-forming materials and ore-forming fluids in the Huize lead-zinc ore deposit [J] . 张振亮 ,黄智龙 ,管涛 . 地球化学学报（英文） . 2005,第3期
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