Air supply apparatus and cooling facility for hot grain/lump material provided with the air supply apparatus

Abstract

An air supply apparatus includes a plurality of movable carriages arranged along a circular carriage path; a movable circular duct arranged along the carriage path and connected to each of the carriages through a connection air duct; a water sealing device including a circular water seal chamber arranged along the carriage path and a water sealing plate having a lower end part thereof sunk in sealing water in the circular water seal chamber; a stationary circular duct arranged along the carriage path and fitted into the movable circular duct through the water sealing device to be freely movable, wherein the movable circular duct and the stationary circular duct form a circular air path; and an atmospheric zone that stops leakage of air in the carriage being provided in a predetermined position of the carriage path, wherein an upper space of the circular water seal chamber on a circular air path side communicates with the circular air path on a movable circular duct side, the circular air path on the movable circular duct side communicates in a circumferential direction, and a connection air duct closing mechanism that closes the connection air duct is provided in the atmospheric zone.

1 . An air supply apparatus comprising:
 a plurality of movable carriages arranged along a circular carriage path;   a movable circular duct arranged along the carriage path and connected to each of the carriages through a connection air duct;   a water sealing device comprising a circular water seal chamber arranged along the carriage path and a water sealing plate having a lower end part thereof sunk in sealing water in the circular water seal chamber;   a stationary circular duct arranged along the carriage path and fitted into the movable circular duct through the water sealing device to be freely movable, wherein   the movable circular duct and the stationary circular duct form a circular air path;   an atmospheric zone that stops leakage of air in the carriage being provided in a predetermined position of the carriage path;   wherein an upper space of the circular water seal chamber on a circular air path side communicates with the circular air path on a movable circular duct side,   the circular air path on the movable circular duct side communicates in a circumferential direction, and   a connection air duct closing mechanism that closes the connection air duct is provided in the atmospheric zone.   
     
     
         2 . The apparatus according to  claim 1 , which is free of a partition plate that partitions the movable air path on the movable circular duct side in the circumferential direction to make the circular air path on the movable circular duct side communicate in the circumferential direction. 
     
     
         3 . The air supply apparatus according to  claim 1 , further comprising a notch part provided in a partition plate that partitions the circular air path on the movable circular duct side in the circumferential direction to make the circular air path on the movable circular duct side communicate in the circumferential direction. 
     
     
         4 . The air supply apparatus according to  claim 1 , wherein the connection air duct closing mechanism is arranged so that the connection air duct is provided with an air damper, the air damper is closed in the atmospheric zone, and the air damper is opened in zones other than the atmospheric zone. 
     
     
         5 . The air supply apparatus according to  claim 1 , wherein the connection air duct closing mechanism is arranged so that the stationary circular duct in the atmospheric zone is provided with a connection air duct closing plate and an inlet of the connection air duct is closed by a connection air duct closing plate. 
     
     
         6 . The air supply apparatus according to  claim 1 , further comprising a foreign matter intrusion prevention plate that prevents a foreign matter from intruding into the circular water seal chamber from the circular air path, the foreign matter intrusion prevention plate being provided in an upper part on a circular air path side. 
     
     
         7 . The air supply apparatus according to  claim 1 , further comprising a foreign matter collector that collects foreign matter in the circular water seal chamber. 
     
     
         8 . A cooling facility for hot grain/lump material comprising the air supply apparatus according to  claim 1 , wherein air supplied to the carriage from the air supply apparatus is used to cool hot grain/lump material. 
     
     
         9 . The cooling facility according to  claim 8 , wherein
 the carriage comprises:   a circular sidewall arranged inside and outside; and   plural pan carriages that load the hot grain/lump material in a bottom part of the circular sidewall, and   air supplied to the carriage is cooling air for cooling the hot grain/lump material loaded onto the pan carriage.   
     
     
         10 . The cooling facility for hot grain/lump material according to  claim 8 , further comprising:
 a side rail for guiding and holding the carriage in moving from a side of the carriage; and   a side wheel,   the side wheel having a structure that a position of the side wheel is adjustable even during movement of the carriage.   
     
     
         11 . The cooling facility for hot grain/lump material according to  claim 8 , further comprising:
 a side rail for guiding and holding the carriage in moving from a side of the carriage; and   a side wheel,   the side wheel having a structure that a position of the side wheel is adjustable even during movement of the carriage.   
     
     
         12 . The air supply apparatus according to  claim 2 , wherein the connection air duct closing mechanism is arranged so that the connection air duct is provided with an air damper, the air damper is closed in the atmospheric zone, and the air damper is opened in zones other than the atmospheric zone. 
     
     
         13 . The air supply apparatus according to  claim 3 , wherein the connection air duct closing mechanism is arranged so that the connection air duct is provided with an air damper, the air damper is closed in the atmospheric zone, and the air damper is opened in zones other than the atmospheric zone. 
     
     
         14 . The air supply apparatus according to  claim 2 , wherein the connection air duct closing mechanism is arranged so that the stationary circular duct in the atmospheric zone is provided with a connection air duct closing plate and an inlet of the connection air duct is closed by a connection air duct closing plate. 
     
     
         15 . The air supply apparatus according to  claim 3 , wherein the connection air duct closing mechanism is arranged so that the stationary circular duct in the atmospheric zone is provided with a connection air duct closing plate and an inlet of the connection air duct is closed by a connection air duct closing plate. 
     
     
         16 . The air supply apparatus according to  claim 2 , further comprising a foreign matter intrusion prevention plate that prevents a foreign matter from intruding into the circular water seal chamber from the circular air path, the foreign matter intrusion prevention plate being provided in an upper part on a circular air path side. 
     
     
         17 . The air supply apparatus according to  claim 3 , further comprising a foreign matter intrusion prevention plate that prevents a foreign matter from intruding into the circular water seal chamber from the circular air path, the foreign matter intrusion prevention plate being provided in an upper part on a circular air path side. 
     
     
         18 . The air supply apparatus according to  claim 2 , further comprising a foreign matter collector that collects foreign matter in the circular water seal chamber. 
     
     
         19 . The air supply apparatus according to  claim 3 , further comprising a foreign matter collector that collects foreign matter in the circular water seal chamber. 
     
     
         20 . A cooling facility for hot grain/lump material comprising the air supply apparatus according to  claim 2 , wherein air supplied to the carriage from the air supply apparatus is used to cool hot grain/lump material.