SU1404775A1 - Gas vent path of sintering machine - Google Patents

Abstract

The invention relates to ferrous metallurgy and is intended for use in sintering iron-containing ores and concentrates. Jb. on conveyor sintering machines. The purpose of the invention is to reduce the removal of charge materials from the sintered layer due to the gradual increase in vacuum under the layer to the working value. When the sintering machine pallet moves over the vacuum chambers, which are covered with wide-gap plates, the compaction between the pallet partitions and the installed plates is achieved by using a mixture spillage that presses the gap, and the vacuum under the grate is gradually increased. Plates with slots having an initial width of 0.01-0.06 from 1 width of the vacuum chamber and extending from the point of attachment at an angle I of 40 ° C are set in the amount of 4 to 12 pieces over a sintering machine length of 0.3 - 2.4 length vacuum chamber. The use of the invention allows to reduce the dust content of sucked gases and to increase the resistance of the rotor of the exhauster. 1 il. e

Description

SP

The invention relates to ferrous metallurgy and is intended for use in sintering iron ores and concentrates on sintering conveyor machines,

The purpose of the invention is to reduce the removal of charge materials from the sintered layer by gradually increasing the vacuum pressure below it to a working value.

The drawing shows the gas tract of the aglomaine.

The proposed path consists of vacuum chambers, of which horizontal plates 2 are permanently fixed with slits 3, Pallets 4 with partitions 5 no Kasaiai in horizontal section. The direction of movement of the pallet 4 is indicated by the arrow. Vacuum chambers 1 have width A and length L. The dimensions of the device are also indicated; 1 - total, the length of the plates 2; v is the angle of expansion of the slots 3; b - the initial width of the slots 3.

In accordance with the above designations, the dimensions of the device according to the invention are determined by:

1 (0.3-2.4) og; oi 1-40; b (0.01-0.06) A,

The number of installed plates 4-12 pieces.

The gas tract works as follows

When moving over the first vacuum chamber, the pallet 4 with the charge enters the plates 2. Its uniform progress ensures a gradual increase in the length of section 3,

0

5 0 5

0

five

0

between the adjacent partitions 5. A gradual increase in the vacuum under the charge layer loaded on the pallet 4 occurs. After the section between the adjacent partitions 5 in the slot 3 has come out, a smooth increase in the vacuum under the layer is achieved due to the expansion of the slots. Under the movable pallet 4, the living section of the slots 3 is constantly increasing and eventually it goes to the area of the vacuum chamber free of plates 2 and the working vacuum is established under the layer.

The use of the invention allows to reduce the discharge of batch materials during sintering, which can lead to a decrease in the dust content of the exhaust gases, an increase in the durability of the rotor of the exhauster and the grate of carriages, an increase in the productivity of the sintering machine, an improvement in the quality of the sinter, a reduction in the fine matter less than 5 mm

Claims (1)

Invention Formula The gas exhaust path of the sintering machine, which contains vacuum chambers with nozzles and gates, is necessary in order to reduce the removal of charge materials from the layer by gradually increasing the vacuum underneath it to the working value, over the first vacuum chambers on the site The 0.3--2.4 lengths of the vacuum chamber establish 4-12 horizontal plates with longitudinal slits having an initial width of 0, 0b of the width of the bladder chamber and expanding from the point of attachment to the front mechanical seal at an angle of 1-40 ° . i one / 1/1/1 A ./1  X X-XY 7UxUx x / X y y xxxxx XX / / y y / L y // / I ITT / 17 GPTT7 I I V / L