CN201581094U

CN201581094U - Main channel of dual skimmer

Info

Publication number: CN201581094U
Application number: CN2009202074339U
Authority: CN
Inventors: 苏莉; 唐小葳; 林西平
Original assignee: CISDI Engineering Co Ltd
Current assignee: CISDI Engineering Co Ltd
Priority date: 2009-11-30
Filing date: 2009-11-30
Publication date: 2010-09-15
Anticipated expiration: 2019-11-30

Abstract

The utility model belongs to the technical field of metallurgy and relates to a main channel for a blast furnace, in particular to the main channel of a dual skimmer. In the main channel of the dual skimmer, the inner part of the main channel is T-junction-shaped, and the tail part thereof is provided with two branch main channels; each branch main channel is internally provided with the skimmer and an iron-notch; each branch main channel can be internally provided with a taphole, or the two branch main channels can share one taphole; and through the use of the active baffle, the two branch main channels of the main channel can be selected for simultaneous working, or only one branch main channel can be selected for work. The main channel of the dual skimmer has flexible operation mode, can meet the polytropic using requirements of stokehold production status, and is especially applicable for the small and medium size blast furnace with the less iron notches.

Description

A kind of pair of skimmer tap drain

Technical field

The utility model belongs to metallurgical technology field, relates to a kind of blast furnace tap drain, particularly a kind of pair of skimmer tap drain.

Background technology

Tap drain is a metallurgical facility important on the blast furnace discharge yard, and the effusive slag iron mixture of blast furnace taphole is not only had water conservancy diversion, has more the effect that slag iron separates and shunts.Present iron mouth of blast furnace, an only corresponding tap drain and a skimmer are subjected to slag, iron device single.Stokehold condition of production complexity, slag iron runner, skimmer, when being subjected to the arbitrary link fault of facilities or slag treatment facility, corresponding iron mouth must shutoff.This single skimmer tap drain causes flushing and casting inconvenience, influences the homogeneity of blast furnace hearth, and blast furnace is got only damping down when serious, influences the blast furnace ordinary production.

The utility model content

The purpose of this utility model is to overcome the prior art deficiency, and a kind of pair of skimmer tap drain is provided.The utility model flexible and convenient operation has reduced the blast furnace staying rate, helps the blast furnace ordinary production.

In order to reach above purpose, adopt technical scheme as follows: shape is triplet type in a kind of pair of skimmer tap drain, tap drain, at afterbody two branch's tap drains is arranged, and is provided with a skimmer and an iron notch in every branch's tap drain.Can in every branch's tap drain, be provided with an excessive cinder notch, also can two shared excessive cinder notch of branch's tap drain.

Wherein in branch's tap drain movable choked flow piece is set described, described movable choked flow piece is a refractory materials, and the interior shape of the tap drain before its profile and the excessive cinder notch is consistent.

By movable choked flow piece is set, can select both one of tap a blast furnace, slag tap, also can adopt two skimmers to work simultaneously.

Further, described tap drain is increasing near threeway point place sectional area.

The beneficial effects of the utility model: movable choked flow piece is set, can or be subjected to the needs of iron device, select which skimmer and corresponding branch's tap drain to tap a blast furnace flexibly according to blast furnace; A skimmer production of tap drain, another skimmer and corresponding slag iron runner can be safeguarded and also can be used as standby measure, effectively avoided damaging the condition of production that the corresponding iron mouth of influence taps a blast furnace, reduced the blast furnace staying rate, helped the blast furnace ordinary production because of arbitrary iron hoop joint of slagging tap breaks down.

Description of drawings

Fig. 1 is a kind of structural representation of the present utility model

Fig. 2 is an another kind of structural representation of the present utility model.

Among the figure: 1-tap drain, 2-skimmer, the movable choked flow piece of 3-, the 4-cinder notch that overflows, 5-iron notch.

Embodiment

Below in conjunction with accompanying drawing two embodiment of the present utility model are further described:

Embodiment 1 goes out as shown in Figure 1: shape is triplet type in the tap drain 1, at afterbody (is afterbody away from iron mouth end) two branch's tap drains is arranged, and is provided with an excessive cinder notch 4, a skimmer 2 and an iron notch 5 in every branch's tap drain.

Embodiment 2 goes out as shown in Figure 2: shape is triplet type in the tap drain 1, at afterbody (is afterbody away from iron mouth end) two branch's tap drains is arranged, and is provided with a skimmer 2 and iron notch 5, two skimmers 2 shared excessive cinder notch 4 in every branch's tap drain.

Tap drain 1 has formed the flow passage of slag iron mixture, and working face bottom surface descending grade is by two afterbodys of tap drain head points; Movable choked flow piece 3 is made by the anti-high-performance refractory material that washes away, and the interior type of the tap drain liner 1 that its profile and excessive cinder notch are preceding is consistent.

When tapping a blast furnace, the slag iron mixture that enters tap drain flows at action of gravity lower edge gradient direction.Amplify near threeway point place melt flow passage sectional area, make the mixture speed that flow to herein descend, effectively promote the slag come-up, improve slag iron separation degree.The slag that floats over the upper strata enters slag runner by excessive cinder notch, and the molten iron that sinks to lower floor enters branch's tap drain by skimmer.

Can select two branch's tap drains to work simultaneously, also can select only work.Only use the concrete grammar of branch's tap drain work as follows: movable choked flow piece 3 to be placed on before obsolete one skimmer 2, and the slit between the shape in movable choked flow piece 3 and the tap drain 1 to be tamped with amorphous refractory.So, the slag iron mixture then only skimmer 2 places in branch's tap drain separate and flow into slag, iron runner respectively.

When using two branch's tap drains to work simultaneously, reduce logical slag, the iron amount of every slag, iron runner greatly, prolonged the maintenance intervals of slag, iron runner; When only using branch's tap drain to tap a blast furnace, other one can be overhauled and also can be used as the emergency duty means, effectively avoid slag iron runner, skimmer, be subjected to facilities or the arbitrary link fault of slag treatment facility, reduced the blast furnace staying rate, helped the blast furnace ordinary production.

Flexible operation mode of the present utility model can satisfy the changeable service requirements of the stokehold condition of production, adapts to very much the less medium and small blast furnace of iron mouth.

Claims

1. two skimmer tap drain, it is characterized in that: the interior shape of tap drain (1) is triplet type, is divided into two branch's tap drains at afterbody, is provided with a skimmer (2) and an iron notch (5) in every branch's tap drain.

2. as claimed in claim 1 pair of skimmer tap drain is characterized in that: be provided with an excessive cinder notch (4) in described every branch's tap drain.

3. as claimed in claim 1 pair of skimmer tap drain is characterized in that: the described shared excessive cinder notch of two branch's tap drains (4).

4. as claimed in claim 1 pair of skimmer tap drain, it is characterized in that: wherein in branch's tap drain movable choked flow piece (3) is set described, described movable choked flow piece (3) is a refractory materials, and the interior shape of the tap drain (1) that its profile and excessive cinder notch (4) are preceding is consistent.

5. as claimed in claim 1 pair of skimmer tap drain is characterized in that: described tap drain (1) is increasing near threeway point place sectional area.