CN2546452Y

CN2546452Y - Bell for blast furnace

Info

Publication number: CN2546452Y
Application number: CN 02214889
Authority: CN
Inventors: 梁忠平; 梁津元; 何小平; 王全武; 王晓冰
Original assignee: Taiyuan Iron and Steel Group Co Ltd
Current assignee: Shanxi Taigang Stainless Steel Co Ltd
Priority date: 2002-05-21
Filing date: 2002-05-21
Publication date: 2003-04-23
Anticipated expiration: 2012-05-21

Abstract

The utility model relates to a small bell used on the blast furnace, comprising a frustum-shaped bucket and a small bell which are nested together. The utility model is characterized in that the inner conical surface of the bucket is fixed with a ring-shaped steel ring; the outer conical surface of the small bell is fixed with a ring-shaped steel ring; the external diameter of the ring-shaped steel ring outside the small bell is less than the internal diameter of the lower opening of the bucket; when the small bell is closed, the ring-shaped steel ring of the bucket is higher than the ring-shaped steel ring of the small bell; the distance from the ring-shaped steel ring of the bucket to the lower opening of the bucket, and is no more than the one -fourth length of the generatrix of the bucket; the distance from the ring-shaped steel ring of the small bell to the bottom of the small bell is no more than the one -fourth length of the generatrix of the small bell; the two ring-shaped steel rings are flat steel, and are perpendicular to the conical surface fixed by the ring-shaped steel rings. The utility model is used on the top of the iron making furnace with a small bell. The utility model overcomes the disadvantage that the service life of the present small bell used on the blast furnace is short, and prolongs the service life of the present small bell for one time; at the same time, the utility model reduces the air-off possibility and the energy consumption.

Description

The little clock of a kind of blast furnace

Technical field

The utility model relates to the little clock of a kind of blast furnace.

Prior art

Now general blast furnace is that the little clock bucket and the little clock of taper of a taper type is nested together with the structure of little clock, be the little clock that point makes progress below, be the little clock bucket of taper type above, upwards osculum is downward for big mouthful of little clock bucket, iron ore is added in blast furnace with in the little clock at ordinary times, when adding iron ore in blast furnace, following little clock moves down, and separates forming at interval between little clock bucket and the little clock up and down.Along with improving constantly of blast furnace technology, blast furnace is also more and more heavier with the load of little clock, because blast furnace is more and more higher with little clock frequency of utilization in the same period, blast furnace is with little clock quick abrasion, particularly little clock lower rim wearing and tearing are very fast, can not seal after the wearing and tearing, and blast furnace is shorter and shorter with the work-ing life of little clock, it is big to change the production loss that once little clock causes, and the spare part expense of generation, executive cost, Master Cost are also high.In order to improve output, reduce damping down, reduce consuming, it is very urgent with the work-ing life of little clock to prolong blast furnace.

Summary of the invention

In order to overcome the weak point of existing blast furnace with little clock weak point in work-ing life, the utility model provides a kind of blast furnace of long service life little clock, blast furnace of the present utility model with work-ing life of little clock under high strength is used, be the twice of the identical existing blast furnace of profile size with little clock.

The technical solution of the utility model is respectively to add a steel ring at little clock and little clock bucket, reduces wear when little clock blowing, reaches the work-ing life that prolongs little clock with this.

The utility model comprises little clock bucket, the little clock of taper of a taper type, both are nested together, following little clock point upwards, big mouthful upwards osculum is downward for the top little clock bucket of taper type, it is characterized in that: fixing an annular steel ring at little clock bucket inner conical surface, fixing an annular steel ring at little clock male cone (strobilus masculinus), the external diameter of the annular steel ring that little clock is outer is less than the internal diameter of little clock bucket end opening, it is that little clock is when closing that little clock bucket end opening is pressed in the little clock conical surface, the annular steel ring of little clock bucket is higher than the annular steel ring of little clock, generally is higher than the 20-40 millimeter.

Above-mentioned blast furnace is not more than 1/4th of little clock bucket bus length with the distance of the little clock bucket end opening of annular steel ring distance of the medium and small clock bucket of little clock, and the distance at the bottom of the little clock of annular steel ring distance of little clock is not more than 1/4th of little clock bus.

Above-mentioned blast furnace is the annular steel ring of band steel with two annular steel rings of little clock, and the cross section of the annular steel ring of the band steel of little clock bucket is perpendicular to the inner conical surface of little clock bucket, and the cross section of the annular steel ring of the band steel of little clock is perpendicular to the male cone (strobilus masculinus) of little clock.

This blast furnace is used for iron-smelting blast furnace clock-type furnace roof with little clock; the annular steel ring of welding on little clock bucket and little clock; the face of avoiding the little clock of the direct friction of furnace charge to contact with little clock bucket; protect the contact surface of little clock, prolonged the work-ing life of little clock, also prolonged the work-ing life of little clock bucket simultaneously; make the blast furnace can be synchronous with great bell with the work-ing life of little clock; also prolong simultaneously the work-ing life of great bell, reduced damping down, reduced consumption.It is 330 cubic metres blast furnace that the utility model is used for volume, and be more than 3 years the work-ing life of little clock, and also be more than 3 years the work-ing life of great bell.Original blast furnace is a year and a half with the work-ing life that little clock is used for same blast furnace, and the working life of great bell is two and half.

Description of drawings

Below in conjunction with embodiment and accompanying drawing thereof the utility model is elaborated.

Fig. 1 is the axial sectional view of the utility model embodiment.

Fig. 2 is and the corresponding vertical view of Fig. 1.

Among the above-mentioned figure: 1, little clock bucket 2, little clock 3, little clock and little clock bucket contact surface 4, annular steel ring 5, annular steel ring

Embodiment

Blast furnace among Fig. 1 and Fig. 2 is that the little clock bucket 1 of a taper type is nested together with the little clock 2 of taper with little clock, little clock 2 among the figure is not cut open, following little clock 2 points upwards, 1 big mouthful upwards osculum is downward for the little clock bucket of top taper type, it is characterized in that: fixing an annular steel ring 4 at the inner conical surface of little clock bucket 1, fixing an annular steel ring 5 at the male cone (strobilus masculinus) of little clock 2, the external diameter of the annular steel ring 5 in the little clock 2 is less than the internal diameter of little clock bucket 1 end opening, it is little clock when closing that little clock bucket 1 end opening is pressed in little clock 2 conical surfaces, and it is 25 millimeters that annular steel ring 4 is higher than annular steel ring 5.

The annular steel ring 4 of the medium and small clock bucket 1 of present embodiment is 1/4th of a little clock bucket bus length apart from the distance of little clock bucket 1 end opening, and the distance at the bottom of the little clock of annular steel ring 5 distances of little clock 2 is 1/4th of a little clock bus.

Annular steel ring 4 and annular steel ring 5 are the annular steel ring of band steel, and the cross section of the annular steel ring 4 of band steel is perpendicular to the inner conical surface of little clock bucket 1, and the cross section of the annular steel ring 5 of band steel is perpendicular to the male cone (strobilus masculinus) of little clock 2.

Claims

1, the little clock of a kind of blast furnace, it comprises little clock bucket, the little clock of taper of a taper type, both are nested together, following little clock point makes progress, and big mouthful upwards osculum is downward for the little clock bucket of top taper type, it is characterized in that: fixing an annular steel ring at little clock bucket inner conical surface, fixing an annular steel ring at little clock male cone (strobilus masculinus), the external diameter of the annular steel ring that little clock is outer is less than the internal diameter of little clock bucket end opening, and when little clock was closed, the annular steel ring of little clock bucket was higher than the annular steel ring of little clock.

2, according to the little clock of the described blast furnace of claim 1, it is characterized in that: the annular steel ring of little clock bucket is not more than 1/4th of little clock bucket bus length apart from the distance of little clock bucket end opening, and the distance at the bottom of the little clock of annular steel ring distance of little clock is not more than 1/4th of little clock bus.

3, according to the little clock of the described blast furnace of claim 2, it is characterized in that: two annular steel rings are the annular steel ring of band steel, the cross section of the annular steel ring of the band steel of little clock bucket is perpendicular to the inner conical surface of little clock bucket, and the cross section of the annular steel ring of the band steel of little clock is perpendicular to the male cone (strobilus masculinus) of little clock.

4, according to claim 1, the little clock of 2 or 3 described blast furnaces, it is characterized in that: when little clock was closed, the annular steel ring of little clock bucket was higher than the annular steel ring 20-40 millimeter of little clock.