| 摘要 |
PCT No. PCT/GB97/00019 Sec. 371 Date Oct. 26, 1998 Sec. 102(e) Date Oct. 26, 1998 PCT Filed Jan. 3, 1997 PCT Pub. No. WO97/25286 PCT Pub. Date Jul. 17, 1997A method of processing material for use in production of rock wool, comprises providing the material in finely divided form; mixing the finely divided material with a fibrous binding agent; and forming the mixture into solid blocks. The resulting blocks (lacking fines) are in a form suitable for use in the production of rock wool, and may be fed to a smelting furnace, together with other ingredients as appropriate, for processing in conventional manner. In one preferred embodiment, the material is waste rock wool, such as spent hydroponic growth medium or shot. By use of the invention, shot which has hitherto constituted a waste material can be recycled and reused in the production of rock wool, thus obviating the waste disposal problem and improving the overall efficiency of the rock wool production process. The invention also covers the resulting solid blocks and a method of producing rock wool using the blocks.
|
