CN215517505U - Special-shaped light plugging sleeve for small tuyere sleeve of blast furnace - Google Patents
Special-shaped light plugging sleeve for small tuyere sleeve of blast furnace Download PDFInfo
- Publication number
- CN215517505U CN215517505U CN202122291464.0U CN202122291464U CN215517505U CN 215517505 U CN215517505 U CN 215517505U CN 202122291464 U CN202122291464 U CN 202122291464U CN 215517505 U CN215517505 U CN 215517505U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- special
- shaped light
- small
- plugging sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Blast Furnaces (AREA)
Abstract
A special-shaped light plugging sleeve for a blast-furnace tuyere small sleeve comprises a special-shaped light plugging sleeve and a tuyere small sleeve, wherein the special-shaped light plugging sleeve is in a round table shape, the diameter of the left part of the special-shaped light plugging sleeve is larger than that of the right part of the special-shaped light plugging sleeve, the special-shaped light plugging sleeve is clamped at the lower part of the inner wall of the tuyere small sleeve, and a concave hemispherical hole groove is formed in one end, with the larger diameter, of the special-shaped light plugging sleeve; the special-shaped light plugging sleeve of the device is cast and prefabricated and cast into shape by adopting a light castable, the manufacturing process is simple, the special-shaped light plugging sleeve is pushed into the tuyere small sleeve by using steel fibers, the large end faces the outside of the furnace, and the small end faces the inside of the furnace and is automatically locked, so that the special-shaped light plugging sleeve cannot fall into the furnace.
Description
Technical Field
The utility model relates to the technical field of iron-making blast furnace accessories, in particular to a special-shaped light plugging sleeve for a small tuyere sleeve of a blast furnace.
Background
The blast furnace is important equipment of iron and steel metallurgy enterprises, and whether the blast furnace runs smoothly or not is directly related to the running of all the processes of the whole iron and steel plant. The blast furnace tuyere small sleeve is an important part for air supply and coal injection of the iron-making blast furnace, high-temperature air can pass through the tuyere small sleeve when the blast furnace is normally produced, but when the blast furnace is abnormal, partial tuyere needs to be temporarily blocked for maintenance operation, and the high temperature in the blast furnace is radiated and transmitted through the tuyere small sleeve hole, so that the safety of a furnace platform maintainer is not facilitated. At present, the blast furnace adopts the process operation of blocking the tuyere of the blast furnace in the operation of blowing down and returning air or treating special furnace conditions, and the position of the tuyere is generally carried out at the position of a small sleeve of the tuyere.
At present, the common method for plugging the blast furnace air inlet small sleeve is mainly to plug the air inlet by using bulk unshaped refractory materials such as stemming and the like in a manual mode, but due to the difference of technical levels, the following situations often occur:
1. the small sleeve of the air port which is blocked is automatically blown open;
2. the small sleeve of the air vent needs to be poked and cannot be poked, so that a large amount of time is spent for clearing;
3. the filled blocking material is not positioned at the front end of the tuyere small sleeve, so that the tuyere small sleeve is burnt out or a blowing pipe is burnt through, and the condition and the production of the blast furnace are seriously influenced. In order to solve the problems, the application provides a special-shaped light plugging sleeve for a small tuyere sleeve of a blast furnace.
SUMMERY OF THE UTILITY MODEL
Objects of the utility model
The utility model provides a special-shaped light plugging sleeve for a small blast furnace tuyere sleeve, which is simple in manufacturing process, convenient to install, free from falling into a furnace and stable in structure.
(II) technical scheme
In order to solve the problems, the utility model provides a special-shaped light plugging sleeve for a blast furnace tuyere small sleeve, which comprises a special-shaped light plugging sleeve and a tuyere small sleeve, wherein the special-shaped light plugging sleeve is in a round table shape, the diameter of the left part of the special-shaped light plugging sleeve is larger than that of the right part of the special-shaped light plugging sleeve, and the special-shaped light plugging sleeve is clamped at the lower part of the inner wall of the tuyere small sleeve.
Preferably, the larger-diameter end of the special-shaped light plugging sleeve is provided with a concave hemispherical hole groove.
Preferably, the special-shaped light plugging sleeve is a prefabricated part and is a solid structure prefabricated and cast by light castable.
Preferably, one side of the special-shaped light plugging sleeve with the small diameter penetrates through the small tuyere sleeve, and the lower part of the inner wall of the small tuyere sleeve is attached to the outer peripheral surface of the special-shaped light plugging sleeve.
The technical scheme of the utility model has the following beneficial technical effects: the special-shaped light plugging sleeve is cast and prefabricated and cast by adopting a light castable, the manufacturing process is simple, the installation is convenient, when a blast furnace is stopped and overhauled, a small amount of foam mud is filled at the front end of the small tuyere sleeve needing to be plugged, namely, the front end of the small tuyere sleeve is close to the inside of the furnace, the sealing effect is mainly achieved, then the steel fiber is pushed into the small tuyere sleeve by the special-shaped light plugging sleeve, the large end of the small tuyere sleeve faces the outside of the furnace, the small end of the small tuyere sleeve faces the inside of the furnace, the small tuyere sleeve is automatically locked, the small tuyere sleeve cannot fall into the furnace, the structure is stable, when the blast furnace needs to be re-ventilated, a peep hole at the elbow part of a blast branch pipe of the blast furnace is opened, the steel fiber is aligned to the concave hemispherical hole groove of the special-shaped light plugging sleeve, the plugging sleeve is smashed, fragments directly fall into a blast furnace hearth, the blast operation of the blast furnace can be resumed, the tight plugging of the special-shaped light plugging sleeve can be guaranteed, the special-shaped light plugging sleeve can be easily broken when the special-shaped light plugging sleeve is dismantled, and the operation is simple and convenient to operate.
Drawings
Fig. 1 is a section structure of a special-shaped light plugging sleeve for a small tuyere sleeve of a blast furnace, which is provided by the utility model.
Fig. 2 is a top view of the special-shaped light blocking sleeve for the small tuyere sleeve of the blast furnace.
FIG. 3 is a diagram of the matching of a special-shaped light plugging sleeve and a special-shaped plugging sleeve for a small tuyere sleeve of a blast furnace.
Reference numerals: 1. a special-shaped light plugging sleeve; 2. and a tuyere small sleeve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-3, the special-shaped light plugging sleeve for the blast furnace tuyere small sleeve provided by the utility model comprises a special-shaped light plugging sleeve 1 and a tuyere small sleeve 2, wherein the special-shaped light plugging sleeve 1 is in a circular truncated cone shape, the diameter of the left part of the special-shaped light plugging sleeve 1 is larger than that of the right part, namely, a large end and a small end are divided, the large end is the larger diameter end of the special-shaped light plugging sleeve 1, the small diameter end of the small end special-shaped light plugging sleeve 1 is provided with a sunken hemispherical hole groove, so that the special-shaped light plugging sleeve 1 can be conveniently poked and damaged by using tools such as steel fibers, one side of the small end of the special-shaped light plugging sleeve 1 penetrates through the tuyere small sleeve 2, the lower part of the inner wall of the tuyere small sleeve 2 is attached to the outer peripheral surface of the special-shaped light plugging sleeve 1, the small end faces the furnace when the special-shaped light plugging sleeve is installed, the large end faces the furnace, and the small end is exposed to the furnace;
the lower part of the inner wall of the tuyere small sleeve 2 is clamped with a special-shaped light plugging sleeve 1, the special-shaped light plugging sleeve 1 is a prefabricated part and is a solid structure prefabricated and cast by light castable, and the indexes of the light castable are as follows:
al2O 3%: not less than 30%, 110 ℃ x 24h volume density: not less than 1.0g/cm3, 110 ℃ x 24h compressive strength: not less than 5 MPa;
the processing method of the special-shaped light plugging sleeve 1 comprises the following steps: a pouring mold is required to be prepared before pouring construction, the mold is designed according to the appearance of the special-shaped light plugging sleeve, and the special-shaped light plugging sleeve 1 can be used as a finished product after the pouring is finished and the procedures of maintenance, demolding, maintenance, baking and inspection are carried out.
The working principle of the utility model is as follows: the special-shaped light plugging sleeve 1 is cast and prefabricated and cast by adopting a light castable, the manufacturing process is simple, the installation is convenient, when a blast furnace is stopped and overhauled, a small amount of foam mud is filled at the front end of the small tuyere sleeve 2 needing to be plugged, namely, the front end is close to the inside of the furnace, the sealing effect is mainly achieved, then, the special-shaped light plugging sleeve 1 is pushed into the small tuyere sleeve 2 by using steel fibers, the large end faces out of the furnace, the small end faces towards the inside of the furnace, the automatic locking is achieved, the structure is stable, when the blast furnace needs to be re-ventilated, a peephole at the elbow part of a blast branch pipe of the blast furnace is opened, the steel fibers are aligned with a concave hemispherical hole groove of the special-shaped light plugging sleeve 1, the plugging sleeve is smashed, fragments directly fall into a hearth of the blast furnace, the blast furnace air supply operation can be recovered, the tight plugging of the special-shaped light plugging sleeve can be ensured, and the easy breaking can be ensured when the plugging is removed, and the operation is simple and convenient.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (4)
1. A special-shaped light plugging sleeve for a small tuyere of a blast furnace is characterized by comprising a special-shaped light plugging sleeve (1) and a small tuyere sleeve (2); the special-shaped light plugging sleeve (1) is in a round table shape, the diameter of the left part of the special-shaped light plugging sleeve (1) is larger than that of the right part, and the special-shaped light plugging sleeve (1) is clamped at the lower part of the inner wall of the tuyere small sleeve (2).
2. The special-shaped light plugging sleeve for the small tuyere sleeve of the blast furnace as claimed in claim 1, wherein a concave hemispherical hole groove is formed at one end with a larger diameter of the special-shaped light plugging sleeve (1).
3. The special-shaped light plugging sleeve for the small tuyere of the blast furnace as claimed in claim 1, wherein the special-shaped light plugging sleeve (1) is a prefabricated member and is a solid structure prefabricated and cast by a light castable material.
4. The special-shaped light plugging sleeve for the small tuyere of the blast furnace as claimed in claim 1, wherein one side of the special-shaped light plugging sleeve (1) with the small diameter penetrates through the small tuyere sleeve (2), and the lower part of the inner wall of the small tuyere sleeve (2) is attached to the outer peripheral surface of the special-shaped light plugging sleeve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122291464.0U CN215517505U (en) | 2021-09-22 | 2021-09-22 | Special-shaped light plugging sleeve for small tuyere sleeve of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122291464.0U CN215517505U (en) | 2021-09-22 | 2021-09-22 | Special-shaped light plugging sleeve for small tuyere sleeve of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215517505U true CN215517505U (en) | 2022-01-14 |
Family
ID=79797419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122291464.0U Active CN215517505U (en) | 2021-09-22 | 2021-09-22 | Special-shaped light plugging sleeve for small tuyere sleeve of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215517505U (en) |
-
2021
- 2021-09-22 CN CN202122291464.0U patent/CN215517505U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208844120U (en) | A kind of blast furnace taphole visualization wind oxygen rifle | |
| CN215517505U (en) | Special-shaped light plugging sleeve for small tuyere sleeve of blast furnace | |
| CN112899425B (en) | Method for preventing slag bonding of blast furnace sludge sleeve | |
| JPS62263906A (en) | Method for blowing pulverized coal from blast furnace tuyere | |
| CN106978198B (en) | Auxiliary device and method for safely and quickly replacing water seal tank of dry quenching furnace | |
| CN103725817A (en) | Blast-furnace tuyere blocking device | |
| CN206330432U (en) | It is a kind of to eliminate the process structure that Mialz lime kiln runs wind | |
| CN202912984U (en) | Device for blocking tuyere of blast furnace | |
| CN205443350U (en) | Stifled iron mouthful device of blast furnace hydraulic pressure mud bubble accident situation | |
| CN216039660U (en) | Improve life's blast furnace stokehold main trough | |
| CN211079208U (en) | Blast furnace tuyere opening device | |
| CN211394520U (en) | Device for treating blast furnace hearth freezing and furnace opening iron notch burying | |
| CN106322371A (en) | Anti-blocking method and device for dry type slag drainage system of biomass boiler | |
| CN201971846U (en) | Integrally-assembled iron tap channel for blast furnace | |
| CN115772588B (en) | High treatment rate on the furnace body method for forming thickness of furnace wall | |
| CN2809547Y (en) | Cupola with two rows of large space tuyere and long service life | |
| CN111996317A (en) | Method for heating furnace hearth during furnace-closing period of blast furnace | |
| CN203559066U (en) | Blow-in taphole structure of blast furnace | |
| CN207280199U (en) | A kind of smelting furnace bell for installing copper cooling water pipe additional | |
| CN110591736A (en) | Online replacement method for dry quenching primary dust removal water-cooling sleeve by adopting auxiliary device | |
| CN211471470U (en) | Blast furnace tuyere small sleeve plugging structure | |
| CN208087654U (en) | A kind of blast furnace with safe slag-tapping function | |
| CN209024573U (en) | Blast furnace main iron runner combustor | |
| CN216869185U (en) | Bottom blowing furnace charge door protector | |
| CN203923229U (en) | Blast furnace cooling stave maintenance hoisting structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A special shaped lightweight sealing sleeve for blast furnace tuyere small sleeve Effective date of registration: 20230905 Granted publication date: 20220114 Pledgee: Industrial Bank Limited by Share Ltd. Wuhan branch Pledgor: WUHAN WINNING TECHNOLOGY Co.,Ltd. Registration number: Y2023980055314 |