专利汇可以提供Manufacture of lightweight aggregate专利检索,专利查询,专利分析的服务。并且A method of and apparatus for making sealed surface fine lightweight aggregate particles in a fluid bed reactor which includes a method and apparatus for preheating the raw feed material. The reactor includes a gas permeable grid which supports a bed of material. Fluidizing air is supplied to the plenum below the grid for passage through the grid for fluidizing the particles of material in the vessel. Fuel is supplied to the fluidized bed for combustion therein to heat the material to a temperature range such that a pyroplastic surface will be formed on the surface of the particles of material and at same temperature range, gas forming components in the material will release a bloating gas. The material is then rapidly cooled. The preheater is of the suspension type and includes a plurality of serially flow connected gas-solids separators such as cyclones. Raw feed material having a particle size range up to 3/8 inch is supplied to a stream of hot gases and it is entrained in those hot gases and then separated in a cyclone. The material discharged from the one cyclone is reentrained in other hot gases and separated in a second cyclone. From the second cyclone, the material is discharged to the reactor. The original source of hot gases is the hot spent fluidizing gas from the reactor.,下面是Manufacture of lightweight aggregate专利的具体信息内容。
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