CN207811793U - A kind of LF bells of low electrode consumption - Google Patents
A kind of LF bells of low electrode consumption Download PDFInfo
- Publication number
- CN207811793U CN207811793U CN201820224192.8U CN201820224192U CN207811793U CN 207811793 U CN207811793 U CN 207811793U CN 201820224192 U CN201820224192 U CN 201820224192U CN 207811793 U CN207811793 U CN 207811793U
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- Prior art keywords
- bell
- bell cover
- cover
- refractory material
- collecting hood
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- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model is related to a kind of LF bells of low electrode consumption, belong to metallurgy industry LF refining furnace equipment technical field.Technical solution is：Bell cover（1）Middle part outer surface cone structure, in bell cover（1）Middle part be equipped with alloy material be added mouth, alloy material be added mouth be equipped with capping（2）, bell exhaust fume collecting hood（4）Pass through top refractory material（3）With lower part refractory material（5）It is fixed on bell cover（1）Top, top refractory material（3）Positioned at bell cover（1）Outside, lower part refractory material（5）Positioned at bell cover（1）Inside, electrode（7）From bell exhaust fume collecting hood（4）In pass through and extend to bell cover（1）It is interior, water cooling smoking pipeline（6）With bell cover（1）The bell exhaust fume collecting hood on top（4）Connection.The utility model has the beneficial effects that：By optimizing LF furnace cover structures, the ambient oxidation of the high-temperature part local environment of LF stove electrodes is reduced, to enable consumption of electrode to reduce by 15% or more.
Description
Technical field
The utility model is related to a kind of LF bells of low electrode consumption, especially 50 tons of LF refining furnaces belong to metallurgy industry
LF refining furnace equipment technical field.
Background technology
Water cooled cover is one of important equipment in 50 tons of LF refining systems, is mainly used for collecting and be produced in LF stove smelting processes
Raw flue dust simultaneously takes after-purification dedusting away by ventilating and purifying air system, with environmental protection, while contact of the air with molten steel being made to subtract
To minimum, best reducing atmosphere in stove is kept.Currently, since 50 tons of LF bells designs are unreasonable, furnace atmosphere oxidisability is strong, production
Raw high temperature is very big to consumption of electrode, and process consumption of electrode is at 550 grams or so.
Utility model content
The utility model aim is to provide a kind of LF bells of low electrode consumption, by optimizing LF furnace cover structures, reduction LF
The ambient oxidation of the high-temperature part local environment of stove electrode solves to ask present in background technology to reduce consumption of electrode
Topic.
The technical solution of the utility model is：
The LF bells of a kind of low electrode consumption, including bell cover, capping, top refractory material, bell exhaust fume collecting hood, lower part are resistance to
Fiery material, water cooling smoking pipeline and electrode, the outer surface cone structure at the middle part of the bell cover, the upper and lower part of bell cover
It is matched in the middle part of the bell cover of cone structure, being equipped with alloy material at the middle part of bell cover is added mouth, and the alloy material is added
Mouth is equipped with capping, and bell exhaust fume collecting hood is fixed on the top of bell cover, top by top refractory material and lower part refractory material
Refractory material is located at the outside of bell cover, and lower part refractory material is located at the inside of bell cover, and electrode is passed through from bell exhaust fume collecting hood
And extend in bell cover, water cooling smoking pipeline is connected to the bell exhaust fume collecting hood on bell cover top.
The angle between the conical surface and horizontal plane in the middle part of the bell cover is 20 degree.
The middle part of the bell cover is circular conical surface, and the upper and lower part of bell cover is the matched circle in middle part with bell cover
Cylinder, the diameter on bell cover top are less than the diameter of bell cover lower part.
The bell cover is formed by steel-pipe welding.
Using the utility model, when LF stoves produce, electrode high-temperature part is in lower part refractory material, bell cover and ladle
In the lower cavity space formed, the cone structure in the middle part of bell cover gathers effect to the formation of lower intracavity gas, lower cavity space is made to be in
Barotropic state can prevent the outer gas of chamber from entering in lower cavity space, avoid lower cavity space oxygenation, reduce LF stove consumption of electrodes.
The utility model has the beneficial effects that：By optimizing LF furnace cover structures, residing for the high-temperature part for reducing LF stove electrodes
The ambient oxidation of environment, to enable consumption of electrode to reduce by 15% or more.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model；
In figure：Bell cover 1, capping 2, top refractory material 3, bell exhaust fume collecting hood 4, lower part refractory material 5, water cooling Smoking pipe
Road 6, electrode 7, ladle 8.
Specific implementation mode
Below in conjunction with attached drawing, by example, the utility model is described in further detail.
With reference to attached drawing 1, a kind of LF bells of low electrode consumption, including bell cover 1, capping 2, top refractory material 3, bell
Exhaust fume collecting hood 4, lower part refractory material 5, water cooling smoking pipeline 6 and electrode 7, the outer surface cone structure at the middle part of the bell cover 1,
The upper and lower part of bell cover 1 is matched with the middle part of the bell cover 1 of cone structure, and alloy material is equipped at the middle part of bell cover 1
Mouth is added, the alloy material is added mouth and is equipped with capping 2, and bell exhaust fume collecting hood 4 passes through top refractory material 3 and lower part refractory material
5 are fixed on the top of bell cover 1, and top refractory material 3 is located at the outside of bell cover 1, and lower part refractory material 5 is located at bell cover 1
Inside, electrode 7 from passing through and extended in bell cover 1 in bell exhaust fume collecting hood 4, smoke pipeline 6 and 1 top of bell cover by water cooling
Bell exhaust fume collecting hood 4 is connected to.
In the present embodiment, bell cover 1 is formed by steel-pipe welding, and the middle part of bell cover 1 is circular conical surface, 1 middle part of bell cover
The conical surface and horizontal plane between angle be 20 degree, the upper and lower part of bell cover 1 is the matched circle in middle part with bell cover 1
Cylinder, the diameter on 1 top of bell cover are less than the diameter of 1 lower part of bell cover.Bell exhaust fume collecting hood 4 is by top refractory material 3 under
Portion's refractory material 5 is fixed on the top of bell cover 1, and top refractory material 3 is located at the outside of bell cover 1,5, lower part refractory material
In the inside of bell cover 1, lower part refractory material 5 is thicker than top refractory material 3, lower part refractory material 5, bell cover 1 and 8 shape of ladle
At in lower cavity space.
LF bell lower edges are pressed on ladle 8 when LF stoves produce with reference to attached drawing 1, electrode 7, which is powered to declining, to be started to produce,
7 electrified regulation molten steel of electrode, the lower cavity space that 7 high-temperature part of electrode is in lower part refractory material 5, bell cover 1 is formed with ladle 8
Interior, the cone structure at 1 middle part of bell cover gathers effect to the formation of lower intracavity gas, so that lower cavity space is in barotropic state, can prevent
Only the outer gas of chamber enters in lower cavity space, avoids lower cavity space oxygenation, the high-temperature part of electrode 7 all in lower cavity space, from
And reduce by 15% or more LF stoves consumption of electrode.
Claims (4)
1. a kind of LF bells of low electrode consumption, it is characterised in that include bell cover（1）, capping（2）, top refractory material（3）、
Bell exhaust fume collecting hood（4）, lower part refractory material（5）, water cooling smoke pipeline（6）And electrode（7）, the bell cover（1）Middle part
Outer surface cone structure, bell cover（1）Upper and lower part and cone structure bell cover（1）Middle part match, in bell
Cover（1）Middle part be equipped with alloy material mouth be added, the alloy material is added mouth and is equipped with capping（2）, bell exhaust fume collecting hood（4）By upper
Portion's refractory material（3）With lower part refractory material（5）It is fixed on bell cover（1）Top, top refractory material（3）Positioned at bell cover
（1）Outside, lower part refractory material（5）Positioned at bell cover（1）Inside, electrode（7）From bell exhaust fume collecting hood（4）In pass through and prolong
Extend to bell cover（1）It is interior, water cooling smoking pipeline（6）With bell cover（1）The bell exhaust fume collecting hood on top（4）Connection.
2. a kind of LF bells of low electrode consumption according to claim 1, it is characterised in that the bell cover（1）Middle part
Angle between the conical surface and horizontal plane is 20 degree.
3. a kind of LF bells of low electrode consumption according to claim 1 or 2, it is characterised in that the bell cover（1）'s
Middle part is circular conical surface, bell cover（1）Upper and lower part be and bell cover（1）The matched cylindrical surface in middle part, bell cover（1）
The diameter on top is less than bell cover（1）The diameter of lower part.
4. a kind of LF bells of low electrode consumption according to claim 1 or 2, it is characterised in that the bell cover（1）By
Steel-pipe welding forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820224192.8U CN207811793U (en) | 2018-02-08 | 2018-02-08 | A kind of LF bells of low electrode consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820224192.8U CN207811793U (en) | 2018-02-08 | 2018-02-08 | A kind of LF bells of low electrode consumption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207811793U true CN207811793U (en) | 2018-09-04 |
Family
ID=63320882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820224192.8U Active CN207811793U (en) | 2018-02-08 | 2018-02-08 | A kind of LF bells of low electrode consumption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207811793U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654512A (en) * | 2019-02-22 | 2019-04-19 | 济南鲁东耐火材料有限公司 | A kind of cathode carbon pieces burn the bell and preparation method thereof of harmless treatment furnace |
-
2018
- 2018-02-08 CN CN201820224192.8U patent/CN207811793U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654512A (en) * | 2019-02-22 | 2019-04-19 | 济南鲁东耐火材料有限公司 | A kind of cathode carbon pieces burn the bell and preparation method thereof of harmless treatment furnace |
| CN109654512B (en) * | 2019-02-22 | 2024-04-30 | 济南鲁东耐火材料有限公司 | Furnace cover of cathode carbon block incineration harmless treatment furnace and preparation method thereof |
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