CN201909536U

CN201909536U - Grate bar for sintering machines

Info

Publication number: CN201909536U
Application number: CN2011200316754U
Authority: CN
Inventors: 黄述生
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-01-26
Filing date: 2011-01-26
Publication date: 2011-07-27
Anticipated expiration: 2021-01-26

Abstract

The utility model discloses a grate bar for sintering machines. The thickness of each of two grate bar ends (1) at both sides of the central line of a grate bar body (2) is 1.10 to 1.20 times as large as the original thickness, reinforcing ribs (3) on both ends and both sides of the grate bar body (2) are arranged from the top of the grate bar body (2) to the bottom of the grate bar body (2), and the material of the grate bar is changed from the original high-chromium cast iron to chromium-manganese-nitrogen alloy. The grate bar can effectively protect an insulating board matched with the grate bar, the service life of the grate bar is prolonged, and the grate bar has practical and popularizing values.

Description

Sintering machine grate bar

Technical field

The utility model relates to a kind of grid section, and a kind of sinter machine grid of using on the sintering machine of raw materials for sintering that provides for metallurgy high furnace is provided.

Background technology

Sintering machine bogie grates is one of main parts size of sintering machine, because hot soak condition, sinter machine grid is scaling loss very easily, causes the sintering machine operating rate to reduce and sinter machine grid shortening in service life.

Before the utility model, for prolonging the design in service life and the sintering machine bogie grates of making various different structure shapes of sinter machine grid, its basic configuration is that the center line both sides of grid section body are symmetrily processed with the grid section head, this grid section head thinner thickness (general is 25mm only), also be manufactured with reinforcement on both sides, grid section body two, but this reinforcement is a segmented, and the length of the reinforcement on top has only about 60mm.The layout structure of this reinforcement can not allow firepower go downstream, and causes burning out of grid section body and grid section head lower end thermal insulation board easily, shortens the service life of whole sinter machine grid.Except structural shortcoming, Material Selection also is to influence one of sinter machine grid service life.

Summary of the invention

The purpose of this utility model is to provide a kind of and can protects the sintering machine thermal insulation board and prolong the grid section sinter machine grid in service life.

For achieving the above object, the technology official documents and correspondence of the utility model employing is: the thickness W of the grid section head on grid section body center line both sides increases 10-20%; The reinforcement on both sides, grid section body two is arranged into the bottom of grid section body always from the top of grid section body.

Adopt a kind of sinter machine grid that as above technical scheme provides compared with prior art, technique effect is:

1. because the layout of reinforcement is the bottom that is arranged into the grid section body from the both sides at grid section body two ends from the head always, the firepower on grid section body top can directly descend along reinforcement in sintering process, rapid heat dissipation, protect the thermal insulation board of grid section body lower end to greatest extent, make improve 2-3 doubly the service life of sinter machine grid;

2. the roll thickness of discharging and the grid section head at the maximum position of wearing and tearing of the most prosperous and chassis of sintering machine firepower increases by 10～20% on the original basis, has improved the service life of grid section head;

3. because material is used chromium manganese nitrogen alloy instead by original rich chromium cast iron, prolonged the replacement cycle of whole grid section.

Description of drawings

Fig. 1 is the forward shape schematic diagram of a kind of sinter machine grid described in the utility model, also is Figure of abstract of the present utility model.

Fig. 2 is the schematic top plan view of Fig. 1.

Fig. 3 is left-hand (or dextrad) schematic diagram of Fig. 1.

Fig. 4 is the A-A line cross-sectional schematic along Fig. 1.

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail

As shown in Figure 1, on original thickness basis, increased 10-20%, made sinter machine grid wearing and tearing maximum and the most prosperous position of firepower strengthen wearability at the thickness W of the grid section head 1 on the center line both sides of grid section body 2.

The reinforcement of making on the two and the both sides of grid section body 23 is arranged into the bottom of grid section body 2 always from the top of grid section body 2; it is arranged for monoblock type; make sintering machine in the course of the work the firepower at grid section body 2 tops can be directly descend along reinforcement 3; it can be above not resting on grid section body 2 for a long time the thermal insulation board of scaling loss grid section head 1 lower end; thermal insulation board is unlikely is burnt out in protection, has also prolonged the service life of grid section body 2.

The material of sinter machine grid is used chromium manganese nitrogen alloy instead by original rich chromium cast iron, to good effect is also arranged in service life of sinter machine grid.

Claims

1. sinter machine grid is characterized in that: the thickness (W) at the grid section head (1) on grid section body (2) center line both sides increases 10-20%; The reinforcement (3) on grid section body (2) two and both sides is arranged into the bottom of grid section body (2) always from the top of grid section body (2).