RU1768904C - Cooler grate - Google Patents

Abstract

Usage: equipment for cooling bulk calcined materials, mainly in the building materials industry. SUMMARY OF THE INVENTION: the grate contains alternating fixed and movable breathable L-shaped inclined grates with openings on the front sides. The movable grid-irons are fixed on beams installed with the possibility of reciprocating movement at an angle to the horizontal. 1 ill.

Description

The invention relates to the construction of grate coolers used to cool bulk material, mainly clinker, after firing,

A fridge grate is known, comprising alternating fixed and movable breathable L-shaped oblique grates with holes on the front sides and on the upper plane fixed to the beams. A drawback of the design is the presence of a request going through holes in the upper plane and an irrational flow rate of air passing vertically through a layer of material.

An object of the invention is to increase cooling efficiency.

Achieving the goal is ensured by the implementation of the grate of the refrigerator with alternating movable and fixed G-shaped inclined grates with holes on the front sides fixed on the beams, the beams of the moving grate being mounted with the possibility of reciprocating movement at an angle to the horizontal.

The drawing shows a General view of the grate sieve. ki with moving grates in an intermediate position with

the dotted lines of the positions of the moving grate in the extreme positions.

On the fixed grate beams 1, under the ANGLE, fixed G-shaped air-permeable inclined grate 2 with slotted holes 3 on the front sides are fixed to the horizon.

Under the grates 2 on the movable grate cart 4 with movable grate bars 5, movable L-shaped grates 6 are fixed with the same slotted holes 3 on the front sides. The trolley 4 has guides 7 with supporting surfaces 8 inclined at an angle 7 to the horizontal, with which it moves along the stationary supporting shafts 9 to the right and up-left and down, as shown by arrows, i.e. mounted for reciprocating movement at an angle to the horizontal.

The grates 2, 6 are attached to the beams 1, 5 by means of bolts 10. The length of the grates is made 100-200 mm longer than their travel. The width of the grate is adopted structurally. The height of the grate K is determined by calculating from the condition that the air necessary for cooling the air through all the gaps O 00

u o

4

holes 3 of all grates 2, 6 and depends on the angle a of the inclination of the grates 2, 6 to the horizon (the larger this angle, the greater the height of the grates K can be taken). If the material to be cooled is very small, in order to avoid clogging of the spaces with air passage under the moving grates 2, the angle a is taken not less than the angle of repose of the material so that the spill does not accumulate in this space but is poured along the plane of the grates 6.

The grate refrigerator works as follows.

When the grates 6 move up and down, their front sides with slotted openings 3 push material along the grates 2,; SU-poured over their front ledges,

At X0,:; ri GRAVES 6 VLSVS Bhi O МЗ-

The material from them through the front ledges is poured onto the grates 2 and then the process is repeated.

At the same time, air through the holes 3 in the grates 2, 6 is not blown up through the material layer, as is the case in conventional refrigerators, but along the material layer, which increases its passage through the material. At the same time, they are known refrigerators, where

The rial slides along the slots and is sifted through them; in the proposed lattice, the material is pushed over surfaces without holes, which reduces spillage.

The use of the refrigerator will ensure cooling efficiency, since air travels a greater distance through the material layer, which will lead to an increase in air temperature and a decrease in fuel consumption in the furnace connected to the refrigerator. At the same time, the amount of excess air required to re-cool the material is reduced to 30-80 ° C, which reduces the cost of equipment for dust removal. Reducing spillage increases heat recovery and also leads to fuel economy in the furnace.

Claims (1)

SUMMARY OF THE INVENTION A refrigerator grate, comprising alternating fixed and movable breathable L-shaped oblique grates with holes on the front sides, fixed to the beams, characterized in that, in order to improve cooling efficiency, the girder beams are mounted with the possibility of return translational movement at an angle to the horizontal. koposnikob stroke Stroke 2 s material /