CN201495243U

CN201495243U - Oscillating trough body

Info

Publication number: CN201495243U
Application number: CN2009201289649U
Authority: CN
Inventors: 叶薇; 林西平; 何强
Original assignee: CISDI Engineering Co Ltd
Current assignee: CISDI Engineering Co Ltd
Priority date: 2009-09-22
Filing date: 2009-09-22
Publication date: 2010-06-02
Anticipated expiration: 2019-09-22

Abstract

The utility model discloses an oscillating trough body comprising a steel-structured housing (1) and a refractory lining (2). The height of an iron drop pit in the trough body is higher than 450mm, and the inner side at the top of the refractor lining (2) of the oscillating trough body below an iron runner spout is in the form of a rounding chamfer. When the oscillating trough body inclines to the maximum working angle, molten iron is filled in the iron drop pit of the oscillating trough and the iron flow in the iron runner spout flows into the iron drop pit filled with molten iron, thereby protecting the refractory lining and effectively prolonging the service life of the oscillating trough body.

Description

A kind of swing chute cell body

Technical field

The utility model relates to a kind of swing chute, relates in particular to a kind of blast furnace discharge yard molten iron swing chute cell body.

Background technology

The swing chute is the key equipment of blast furnace discharge yard, and it mainly plays the function of accepting molten iron and transhipment molten iron.Being molten iron flows into the swing chute cell body from an iron spout, will swing to fascinate about the chute cell body by the swing launder driving device again to make in the cast-iron device under the molten iron inflow casting house.Service condition according to present blast furnace swing chute, the life-span of swing chute cell body refractory lining is lower, place, the iron hole damage that particularly falls is bigger, general 5～60,000 tons of iron influx, low has only 3～40,000 tons, and the centre also will be repaired once, when serious, the swing chute iron burnt in a pit leakage iron that falls burns out the cast-iron device weighing device of swing chute support beam and railway below, and production brings very big influence to blast furnace.According to analysis, at present the intravital iron hole that falls of the swing chute groove that uses is more shallow, generally at 200～400mm, when the chute cell body tilts to operating angle, the iron that falls does not have molten iron in the hole, and the molten iron of an iron spout is directly impacted on the refractory lining, damages anti-material; In addition, the iron spot that falls of an iron spout is not fallen near the medullary ray of cell body, when flowing molten iron is big, often drops into cell body arc section stress raiser, is easy to generate crackle, damages very big to anti-material yet.

The utility model content

The purpose of this utility model provides a kind of swing chute cell body that prolongs the life-span of refractory lining effectively.

The utility model is by the following technical solutions: a kind of swing chute cell body, comprise steel construction shell, refractory lining, and it is characterized in that: the intravital iron hole height that falls of described groove is greater than 450mm.

In order further to protect refractory lining, the swing chute cell body refractory lining inside top that is positioned at the iron spout below is chamfering.Wherein chamfering is 150mm * 300mm.

The beneficial effects of the utility model:

(1) when swing chute cell body tilts to the maximum functional angle, the swing chute falls and fills molten iron in the iron hole, and the flowing molten iron of an iron spout flows in the iron hole that falls that fills molten iron; form " material dnockout "; protected refractory lining, iron influx improves, and has effectively prolonged the swing chute cell body life-span.

(2) when the refractory lining of iron spout below swing chute cell body is provided with chamfering; can suitably shorten the length of iron spout; the iron spot that falls of an iron spout flowing molten iron is flowed near the medullary ray of cell body; avoiding dropping into cell body arc section stress raiser makes liner produce the crack; protected refractory materials; iron influx improves, and has effectively prolonged the swing chute cell body life-span.

Description of drawings

Fig. 1 is a working state schematic representation of the present utility model;

Fig. 2 is that the A of Fig. 1 is to view.

Wherein, 1-shell, 2-liner, 3-iron spout, 4-chamfering.

Embodiment

The utility model will be further described below in conjunction with drawings and Examples:

As shown in Figure 1 and Figure 2: a kind of swing chute cell body; comprise steel construction shell 1, refractory lining 2; highly design is greater than 450mm for the iron that falls hole, and like this, the iron that falls just leaves remaining molten iron in cheating; in the flowing molten iron that props up iron spout flows into the iron hole that falls that fills molten iron; form " material dnockout ", reduced the direct impact of molten iron, protected refractory lining anti-material; iron influx improves, and has effectively prolonged the swing chute cell body life-span.As height 〉=500mm, the iron place that at this moment falls stockpiles molten iron height＞50mm, better effects if at this moment.

The refractory lining of swing chute cell body is provided with chamfering 4 below iron spout 3, chamfering generally is designed to 150 * 300mm, can suitably shorten the length of iron spout 3 like this, the iron spot that falls of iron spout 3 flowing molten iron is flowed near the medullary ray of cell body, avoided dropping into the refractory lining crack phenomenon that cell body arc section stress raiser produces because of flowing molten iron, iron influx improves, and has effectively prolonged the swing chute cell body life-span.

Originally be that utility model can replace existing swing chute cell body, be widely used in the blast furnace casting field system and tap a blast furnace on the equipment.

Claims

1. a swing chute cell body comprises steel construction shell (1), refractory lining (2), it is characterized in that: the intravital iron hole height that falls of described groove is greater than 450mm.

2. swing chute cell body as claimed in claim 1 is characterized in that: swing chute cell body refractory lining (2) inside top that is positioned at iron spout (3) below is chamfering.

3. swing chute cell body as claimed in claim 2 is characterized in that: described chamfering is 150mm * 300mm.