Title:
SAND DRYING SYSTEM, AND SAND DRYING METHOD
Document Type and Number:
Japanese Patent JP2023085820
Kind Code:
A
Abstract:
To provide a sand drying system and a sand drying method that can be relatively easily adopted and can efficiently dry sand.SOLUTION: The sand drying system comprises a hot air generation furnace 2 generating hot air by self-burning of wood fuel and first and second sand dryers 3 and 4 for drying wet sand, which are juxtaposed, in a crushing plant, with a hot air extraction duct 21 provided on the hot air generation furnace 2, being connected to one end of a first drum 19 of the first sand dryer 3, an exhaust duct 25 being connected to the other end thereof, and a heat exchanger 5 being interposed midway in the first exhaust duct 25 to exchange heat between exhaust coming out of the first drum 19 of the first sand dryer 3 and outdoor air supplied by a blower 32 for supplying outdoor air to heat the outdoor air using latent condensation heat of steam included in the exhaust upon condensation, is characterized by comprising a supply duct 34 that introduces outdoor air heated by the heat exchanger 5 into a second drum 20 of the second sand dryer 4.SELECTED DRAWING: Figure 1
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Inventors:
HORAI HIDETO
Application Number:
JP2021200079A
Publication Date:
June 21, 2023
Filing Date:
December 09, 2021
Export Citation:
Assignee:
NIKKO KK
International Classes:
F26B17/32; E01C19/10; F26B23/00; F26B25/00