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AssigneeMitsubishi Materials Corporation
InventorsKoji Nagamizu, Akihisa Koga, Hiroyuki Terunuma, Yusuke Nakai, Koyuru Horiike, Masafumi Ito
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An object of the present invention is to provide a wet sludge disposal method and facility capable of smoothly transferring wet sludge to a kiln inlet part, or the like, of a dry process kiln, by a low feeding pressure and without substantially increasing the moisture content in the wet sludge. To this end, the present invention is characterized, in a cement clinker manufacturing facility having a preheater (3) for preheating a cement raw material, and a dry process kiln (1) connected to the preheater (3) at the kiln inlet part (2) of the dry process kiln (1) and configured to calcine the preheated cement raw material, in that when wet sludge stored in a sludge tank (5) is transferred through a pipe by a pressure feed pump (6) and is directly charged into the kiln inlet part (2) to thereby be incinerated, the wet sludge is transferred to the side of the kiln inlet part (2) by such a way that water is intermittently or continuously fed between the wet sludge and the inner wall surface of the pipe (7) by a water injection apparatus (8) in at least one place of the pipe (7) between the pressure feed pump (6) and the kiln inlet part (2).
A method for disposing wet sludge, in a cement clinker manufacturing facility having a preheater for preheating a cement raw material, and a dry process kiln connected to the preheater at a kiln inlet part of the dry process kiln and configured to calcine the preheated cement raw material, wherein when wet sludge stored in a sludge tank is transferred through a pipe by a pressure feed pump and is directly charged into a lower part of the preheater to thereby be incinerated, water is intermittently or continuously fed between the wet sludge and the inner wall surface of the pipe, in at least one place of the pipe between the pressure feed pump and the lower part of the preheater.
A wet sludge disposal facility for directly incinerating wet sludge in a cement clinker manufacturing facility which has a preheater for preheating a cement raw material, and a dry process kiln connected to the preheater at a kiln inlet part of the dry process kiln and configured to calcine the preheated cement raw material, the wet sludge disposal facility comprising:
Dependencies are inferred from the claim text.