Apparatus for producing a sulfur concrete substance
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United States of America Patent
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Aug 7, 2012
Grant Date -
Jan 20, 2011
app pub date -
Sep 27, 2010
filing date -
Mar 25, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A sulfur-containing material in a melt state is stored in material hopper 1 heated to a temperature within a preset temperature range of which a lower limit is equal to or above a melting point of sulfur. The stored sulfur-containing material is sucked by pressure generators 2a, 2b and pulled out into cylinders 11a, 11b heated to a temperature within the preset temperature range. The pulled out sulfur-containing material is pushed out from the cylinders under predetermined pressure applied by the pressure generator, and thereafter, the resultant material is injected from injection port 24 into mold 5 having therein a cavity which can be hermetically sealed and the mold being heated to a temperature within the preset temperature range. The injection port of the mold after the sulfur-containing material is fully injected in the cavity is closed. By stopping heating of the mold, the sulfur-containing material injected in the cavity is slowly cooled. After that, a modified sulfur concrete substance formed by cooling and solidifying the sulfur-containing material in the cavity is taken out from the mold.
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