CN209039518U - Furnace slope improved water-cooled fire door - Google Patents
Furnace slope improved water-cooled fire door Download PDFInfo
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- CN209039518U CN209039518U CN201821894154.XU CN201821894154U CN209039518U CN 209039518 U CN209039518 U CN 209039518U CN 201821894154 U CN201821894154 U CN 201821894154U CN 209039518 U CN209039518 U CN 209039518U
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- furnace
- slope
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- cooling mouth
- furnace slope
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Abstract
The utility model relates to a kind of furnace slope improved water-cooled fire doors, it includes cast tube type furnace water-cooling mouth, furnace water-cooling mouth is equipped with furnace slope, the cast tube type furnace water-cooling mouth is equipped with annular dovetail type fixing groove, several notches are arranged in furnace water-cooling mouth inner ring in annular dovetail type fixing groove, and each notch top surface is outside, and the furnace slope before furnace water-cooling mouth inner ring is integrally fixed by annular dovetail type fixing groove, constitute integral furnace slope, the i.e. fixed furnace slope of dovetail.The utility model designs and utilizes dovetail type fixing groove, and the furnace slope before furnace water-cooling mouth inner ring is integrally fixed, and in turndown charging and the when of falling slag, carries out effective protection to furnace slope and the type of furnace, furnace slope is avoided to damage and fall off；The easy dross characteristic for passing through fire resisting stamp mass furnace slope simultaneously, further enhances and thickens furnace slope.The utility model has blocked high temperature gas flow to the damage of furnace water-cooling mouth, has avoided the generation of heat fatigue cracking and the early stage melting loss of fire door inner ring by the setting fixed furnace slope of dovetail, isolation.
Description
Technical field
The utility model belongs to metallurgical casting industry, in particular to a kind of furnace slope improved water-cooled fire door.
Background technique
Oxygen converter steelmaking is carried out in 1600 DEG C or more of high temperature, in order to protect fire door and furnace body, Converter crown
Portion generallys use recirculated water and forces cooling furnace water-cooling mouth.Furnace water-cooling mouth is inserted into oxygen rifle for the operation that feeds when work, and furnace is discharged
Gas, vert down slag, fixed furnace wall brick body.Therefore, furnace water-cooling mouth is the key equipment for guaranteeing converter and operating normally.
Currently, furnace water-cooling mouth mainly uses welded-steel plate construction and cast tube type furnace water-cooling mouth to cast two kinds of structure types.By
There is a problem of that leak easy to crack, operation expense are high in welded-steel plate construction fire door, by cast tube type furnace water-cooling mouth by
Step substitution.Cast tube type furnace water-cooling mouth is by iron casting, and inside is cast into cooling tube, and integral rigidity is high, can reduce fire door deformation, improve
Stress state extends the service life of furnace crown metal-back and furnace lining, is widely applied.
Furnace slope or furnace wall (as shown in Figure 1) before existing furnace water-cooling mouth inner ring, due to not having integral fastening, fire resisting is beaten
, by charging collision, after high temperature slag iron washes away, there is cracking for a long time in ramming material, loosens and damage, and when turndown falls off.Due to
Cast tube type furnace water-cooling mouth is not easy dry slag, if cannot carry out the reparation of furnace slope in time or force dross operation, loses furnace slope or furnace wall is anti-
The furnace water-cooling mouth inner ring of shield easily generates heat fatigue cracking or early stage melting loss under the directly impact of high temperature roaring flame.
In view of this, field technical staff is dedicated to researching and developing a kind of furnace slope improved water-cooled fire door, it is above-mentioned existing to solve
There is the problems of technology.
Summary of the invention
The task of the utility model is to provide a kind of furnace slope improved water-cooled fire door, designs and utilize dovetail type fixing groove,
Furnace slope before furnace water-cooling mouth inner ring is integrally fixed, in turndown charging and the when of falling slag, furnace slope and the type of furnace are effectively protected
Shield, solves the problems of above-mentioned prior art.
The technical solution of the utility model is as follows:
A kind of furnace slope improved water-cooled fire door, it includes cast tube type furnace water-cooling mouth, and furnace water-cooling mouth is equipped with furnace slope, the casting
Pipe-type water-cooling fire door is equipped with annular dovetail type fixing groove, and several notches are arranged in furnace water-cooling mouth inner ring in annular dovetail type fixing groove,
Each notch top surface is outside, and the furnace slope before furnace water-cooling mouth inner ring is integrally fixed by annular dovetail type fixing groove, constitutes monoblock type
The fixed furnace slope in furnace slope, i.e. dovetail.
The integral furnace slope is built using fire resisting stamp mass.
The furnace water-cooling mouth of the utility model uses ironcasting, designs and utilizes dovetail type fixing groove, by furnace water-cooling mouth inner ring
The furnace slope of front is integrally fixed, and in turndown charging and the when of falling slag, carries out effective protection to furnace slope and the type of furnace, furnace slope is avoided to damage
With fall off；The easy dross characteristic for passing through fire resisting stamp mass furnace slope simultaneously, further enhances and thickens furnace slope.
The furnace slope improved water-cooled fire door of the utility model has blocked High Temperature Gas by the setting fixed furnace slope of dovetail, isolation
The damage to furnace water-cooling mouth is flowed, the generation of heat fatigue cracking and the early stage melting loss of fire door inner ring is avoided, has on furnace water-cooling mouth
With practical value and economic significance.
Detailed description of the invention
Fig. 1 is the schematic diagram on the furnace slope or furnace wall before existing furnace water-cooling mouth inner ring.
Fig. 2 is a kind of structural schematic diagram of furnace slope improved water-cooled fire door of the utility model.
Fig. 3 is the A-A cross-sectional view in Fig. 2.
Appended drawing reference:
1 is cast tube type furnace water-cooling mouth, and 2 be dovetail type fixing groove, and 3 be integral furnace slope.
Specific embodiment
It elaborates with reference to the accompanying drawings and examples to the utility model.
Referring to Fig. 2 and Fig. 3, the utility model provides a kind of furnace slope improved water-cooled fire door, and furnace water-cooling mouth is cast tube type water
Black furnace mouth 1, furnace water-cooling mouth are equipped with furnace slope.
Cast tube type furnace water-cooling mouth 1 is provided with annular dovetail type fixing groove 2, and annular dovetail type fixing groove 2 is in furnace water-cooling mouth
Several notches are arranged in circle, and each notch top surface is outside.Furnace slope before furnace water-cooling mouth inner ring is fixed by annular dovetail type fixing groove 2
One constitutes integral furnace slope 3, the i.e. fixed furnace slope of dovetail.
Integral furnace slope 3 is built using fire resisting stamp mass.
Using the furnace slope improved water-cooled fire door of the utility model, effective protection can be carried out to furnace slope and the type of furnace, avoid furnace
Slope is damaged and falls off；The easy dross characteristic for passing through fire resisting stamp mass furnace slope simultaneously, further enhances and thickens furnace slope.
In conclusion the furnace slope improved water-cooled fire door of the utility model passes through the setting fixed furnace slope of dovetail, isolation resistance
Break damage of the high temperature gas flow to furnace water-cooling mouth, the generation of heat fatigue cracking and the early stage melting loss of fire door inner ring has been avoided, in water
There is practical value and economic significance on black furnace mouth.
Certainly, the those skilled in the art of the art are it should be appreciated that above-described embodiment is intended merely to illustrate that this is practical
It is novel, and it is not used as the restriction to the utility model, as long as in the spirit of the utility model, to above-mentioned implementation
Variation, the modification etc. of example will all be fallen in the range of the utility model claims.
Claims (2)
1. a kind of furnace slope improved water-cooled fire door, it includes cast tube type furnace water-cooling mouth, and furnace water-cooling mouth is equipped with furnace slope, and feature exists
In: the cast tube type furnace water-cooling mouth (1) is equipped with annular dovetail type fixing groove (2), and annular dovetail type fixing groove (2) is in furnace water-cooling mouth
Several notches are arranged in inner ring, and each notch top surface is outside, and annular dovetail type fixing groove (2) consolidates the furnace slope before furnace water-cooling mouth inner ring
It is fixed integral, it constitutes integral furnace slope (3), i.e. the fixed furnace slope of dovetail.
2. furnace slope improved water-cooled fire door according to claim 1, it is characterised in that: the integral furnace slope (3) uses
Fire resisting stamp mass is built.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821894154.XU CN209039518U (en) | 2018-11-19 | 2018-11-19 | Furnace slope improved water-cooled fire door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821894154.XU CN209039518U (en) | 2018-11-19 | 2018-11-19 | Furnace slope improved water-cooled fire door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209039518U true CN209039518U (en) | 2019-06-28 |
Family
ID=67042466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821894154.XU Active CN209039518U (en) | 2018-11-19 | 2018-11-19 | Furnace slope improved water-cooled fire door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209039518U (en) |
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2018
- 2018-11-19 CN CN201821894154.XU patent/CN209039518U/en active Active
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