SU1350463A1 - Grate cooler - Google Patents

Abstract

This invention relates to a bulk material cooling technique that can be used in the building materials industry. The purpose of the invention is to increase the cooling efficiency. The refrigerator contains an air-grate grate 4 connected to the furnace 1 and the air ducts 7 located under it and the bunkers for removing small fraction of the cooled material, equipped with discharge pipes with gates 6. A crusher 8 is located under the gates 6 and connected to the atmosphere through an air inlet 10 and a discharge chute 11 with a cyclone heatlog exchanger 12. The spill of material through the gate 6 enters the crusher 8, is crushed and through the discharge chute 11 enters the heat exchanger 12. Hot air from eploobmennika 12 through gas duct 13 enters the furnace 1. The cooling material in the cyclone preheater 12 allows air to rise in temperature entering the furnace. 1 il. (L X G4 75 2 Od el about 4 05 oo

Description

one

The invention relates to a technique for cooling materials and can be used in the building materials industry.

The goal of the invention is to increase cooling efficiency.

The drawing shows the refrigerator, a general view.

Rotating furnace 1 through the head 2 is connected to: grate. a cooler 3, inside of which there is a grate 4, under which there is a bunker 5 with a shutter 6; Bunker 5 supplies cooling air through the air duct 7. Under the grill 4 there can be not one but several bins 5 with closures 6 and discharge pipes. Under the shutter, there is a crusher 8 with a charging chute 9, into which cooling air is supplied through the air inlet -pipe 10, which then enters the cyclone heat exchanger 12 through the discharge chute 11,

Next, hot air through the duct 13 goes into the furnace 1, and the separated and cooled material through the gate 14 and the chute 15 enters either the conveyor 16 or the cooler for additional cooling. If the furnace 1 does not need to supply all the air, then part of it is discharged through the duct 17. A lattice 18 is located behind the lattice 4, at the beginning of which a chopper 19 is installed. Under the lattice 18 there is a duct 20 for supplying cooling air and a scraper conveyor 21 for cleaning spillage. Above the grill 18, there is an aspiration gas duct 22 for evacuating excess air. Lugs 23 and 24 serve to drain material from the grill 18 and the scraper conveyor 21, respectively.

The refrigerator works as follows.

 The material from the furnace 1 enters the grate 4 and is cooled by air entering under the grate 4 through the duct 7, which then goes into the furnace 1. Fine material, the dimensions of which are smaller than the gaps in the grate-bars. ki 4 (gap sizes 4-8 mm), proVNIIPI Order 5248/38 Circulation 543 Subscription Prod.-polygr. pr-tie, Uzhgorod, st. Project, 4

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pours into the hopper 5 and through the shutter 6 enters the crusher 8, which crushes it to the design dimensions, g at which it is picked up by the air entering through the air inlet 10, and then through the unloading leakage 11 enters the cyclone heat exchanger 12 where material

10 is cooled, separated from the air and through the shutter 14 and the chute 15 enters the conveyor 16. Hot air from the cyclone heat exchanger 12 through the duct 13 enters the furnace 1.

15 Coarse material from the grid 4 is fed to the chopper 19, which crushes it and throws it onto the grid 4. You can choose the degree of crushing so that all the material is crushed so that it spills through the grid 4 and then enters the crusher 8 and the cyclone heat exchanger 12. If it is not necessary to dispose of all the heat, the degree of fragmentation is chosen so that

25 that part of the material goes to the grill 18 to be cooled with air, which is then discharged through the suction flue 22.

Refrigerator application will provide

30 increases the cooling efficiency of the material, since it is mainly cooled in a cyclone heat exchanger after grinding. This will increase the temperature of the air that is supplied to the furnace, which will lead to fuel savings

Claims (1)

Claims of the invention: A grate cooler, containing a grate air-permeable grille, air ducts located under it and bunkers for removing fines with discharge pipes equipped with valves, to increase cooling efficiency, it is equipped with a crusher with loading and unloading chutes, an air inlet pipe and a cyclone gQ heat exchanger, wherein the charging chute is connected to the discharge pipes of the refrigerator below the closures, and the discharge chute is connected to the cyclone heat exchanger.