SU1250813A1 - Refrigerator grate - Google Patents

Description

I12508

The invention relates to the technique for the deposition of bulk materials and can be used in the building materials industry.

The aim of the invention is to increase the cooling efficiency of the material and the efficiency of the grates.

Figure 1 shows the grate of the grate cooler, in plan; in Fig.2 - 4 sections, respectively, A-A, and B-B in Figs. I.

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The grille contains movable 1 and non-movable 2 grates with pushing ledges 3 directed toward the discharge end A of the grille, forming longitudinal rows of the main direction of the material, and grate bars with pushing ledges 5 directed towards the loading end 6 of the grille, forming the ND1e longitudinal rows of material recycling plates.

The drawings do not show the details of movable and movable frames with beams, on which movable and fixed grate are attached.

Grid-irons, with pusher ledges 5 directed towards the loading end 6 of the grid, can be made with a solid surface, i.e. without a hole .dl cooling air flow. Between rows of plates with grates with oppositely located pushing ledges 3 and 5, longitudinal partitions 7 are made in the loading end 6.

The number of rows of the recycling direction and their location depends on the lattice width. The wider the lattice, the more such rows are non-. Circumscribed to improve the uniform distribution of the material on the lattice.

The row length is 0.5-0.9 lattice length. With a row length of 0.5 lattice length, more hot material returns, and with a row length greater than 0.9, too little material returns.

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The refrigerator works in the following way.

Moving grates 1, reciprocating with their pushing ledges 3 push the material and create a directional movement of the material in the longitudinal direction of the main direction towards the discharge end 4 of the lattice, and the grate with pushing 1 ledge 5 create a recirculation direction of the material movement (shown by arrows ).

The construction of grates with a solid surface is provided to eliminate the influence on the cooling of the material going along the rows of the main direction, and they serve only to transport a part of the cooled material / x to the loading end of the grid.

The material in the recirculation direction can only get to the places where the longitudinal partitions 7 end, which are used so that sufficiently cooled material enters the boot part.

Thus, a part of the material cooled by the air blown through the grate returns to the material loading side, where it mixes with the material coming from the furnace, which reduces its average temperature and improves the working conditions of the first rows of grates. At the same time, the return stroke of the material (especially in the middle part) contributes to its more uniform distribution in width, since at the material transfer point (where the maximum amount of material is located) of the recycle line, the material is distributed on both sides of the lattice, which in turn leads to an increase in cooling efficiency. In addition, mixing the cooled material with hot materials at the loading site improves the efficiency of the grate.

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FIG. 2. B-6

Figz in-b

Compiled by T.Gubareva Editor T.Parfenova Tehred o.Gortvay Corrector c.Sharoshi

4396/32

Circulation 561 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

Claims (3)

1. Grid-cooler lattice containing longitudinal rows of plates formed by movable and fixed grates with pushing devices directed towards the discharge end of the grate, characterized in that, in order to improve cooling efficiency and operability of the grates, at least one longitudinal row of plates is made with grates, pushing ledges which are directed towards the loading end of the grate. 2. The grate according to claim 1, characterized in that the grid-irons with pushing ledges directed towards the loading end of the grate are made with a continuous surface. 3. The grate according to claim 1, characterized in that between the rows of plates having grates with oppositely located pushing ledges at the loading end of the grate, longitudinal partitions are made. and „1250813