Abstract: A method of converting industrial, domestic or other sludge, into a pelletized or granular fertilizer, as well as a sludge converter for practicing the method. The sludge is dewatered to form sludge cake solids which are dried in a dryer, and then sorted with a sorter into a sorted product comprising oversized, undersized, and standard sized product. Oversized product containing fibrous material is reduced in size by grinding in a hammermill. A portion of the sorted product is recycled for mixing and sizing in a mixer with the dewatered sludge cake solids. To control dust and odors, cyclones and a condenser remove a substantial portion of the gaseous particulate matter and condensable gases from the converter, and any remaining noncondensates are burned in the heat source flame. A waste oil burning heat source supplies heat energy to the dryer.
Abstract: High volume manufacturing process for flexographic printing plates comprises wash out, drying and post-exposure. During drying the printing plates are transported with a plurality of endless conveyors. The transport speed during drying/post-exposure is lower than the transport speed during wash out such that a storage of flexographic plates can be achieved in the drying and post exposure portion of the process.
Abstract: Vaporizing and concentration drying apparatus and method are disclosed. The apparatus and method prepare good quality of condensed water and save evaporation energy and are wide used in making contaminated waste water become distilled water and in purification of the waste water and in concentration and drying of varieties of environmental polluting sludge. The apparatus and method recover and reuse the heating energy, which energy was applied to the vapor so as to heat the vapor to a high temperature and to remove the environmental polluting impurities, such as odor, B.O.D. and C.O.D. laden in the vapor, so that the apparatus and method remarkably save the cost for the heating energy. The apparatus saves the energy by 2-10 times in comparison with the conventional apparatus.
Abstract: A new kind of teas named "dry fresh tea" is prepared by drying tea leaves in circulating air at low temperature and low humidity. Quality of teas is improved by preserving volatile flavors.
Type:
Grant
Filed:
May 13, 1993
Date of Patent:
July 18, 1995
Assignee:
Industrial Technology Research Institute
Abstract: A fabric having both a high degree of user comfort and a high degree of Ultraviolet Radiation protection is provided. The preferred yarn is at least 40 Denier by 40 Denier, preferably 70 Denier by 2 70 Denier Nylon Yarn. The yarn is woven into a fabric with a yarn count of at least 80 by 50, preferably about 118 by 68 yarns per inch. The fabric is sanded, preferably moderate to heavy, on one side. The fabric is jet treated, preferably air jet laundered. The fabric provides an Ultraviolet sun protection factor of at least about 30, preferably about 70 or more.