CN202688348U - Gun head of blast furnace clay gun - Google Patents
Gun head of blast furnace clay gun Download PDFInfo
- Publication number
- CN202688348U CN202688348U CN 201220045150 CN201220045150U CN202688348U CN 202688348 U CN202688348 U CN 202688348U CN 201220045150 CN201220045150 CN 201220045150 CN 201220045150 U CN201220045150 U CN 201220045150U CN 202688348 U CN202688348 U CN 202688348U
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- China
- Prior art keywords
- gun head
- head cap
- clay
- iron
- gun
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- Expired - Lifetime
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Abstract
The utility model discloses a gun head of a blast furnace clay gun, which comprises a middle section (2), and a gun head cap (1); the gun head cap (1) is mounted at one end of the middle section (2); the other end of the middle section (2) is connected with a clay gun transition pipe (4) through a pin (3); the front end of the cylindrical gun head cap (1) is changed into a taper shape with a small diameter and a large taper. The gun head of the blast furnace clay gun of the utility model overcomes various original technical defects; the compactness and tightness degree of a gun-pressed plugged iron notch clay sleeve is improved by 5.6 times; when the gun head cap is used to plug the iron notch, the gun head cap is not burnt out by molten iron; the gun head cap is not filled up by accumulated iron in the iron notch clay sleeve; the accident of clay spilling of the iron notch is put to an end; the frequency for passively making iron notch clay sleeves at a high temperature in front of the furnace due to frequent clay spilling of the iron notch is reduced; and normal production of the blast furnace is ensured. The gun head of the utility model is suitable for plugging iron notches in blast furnace ironmaking in ironmaking plants.
Description
Technical field
The utility model relates to blast furnace, specifically, relates to clay gun, relates in particular to the big gun head of clay gun.
Background technology
As everyone knows, clay gun is one of key equipment of blast furnace production in the blast-furnace equipment of ironmaking.The big gun body of clay gun doubly part is comprised of mud cylinder, the transition conduit that pushes away between mud piston, mud cylinder and the big gun head, and the big gun head is comprised of middle joint, big gun head cap.
Blast furnace gun is all regenerated by electric clay gun and is all-hydraulic power big gun at present, and performance obtains very large improvement.But frequently emit this difficult problem of mud not to be resolved during stifled iron notch always, particularly blast furnace uses after the anhydrous stemming, the long-pending iron of the easiest generation in the iron mouth mud cover, mud cover inner product iron lining is lived the big gun head cap during stifled iron notch, make the junction surface of big gun head cap and iron mouth mud cover produce the slit, when clay gun pushes stifled mud and when producing resistance to iron mouth intraocular, stifled mud will contact not tight slit from mud cover and emerge and cause stifled iron notch to emit the mud accident with the big gun head cap, its consequence is that iron mouth normal depth is not normal, tap a blast furnace and run large stream, slag iron goes out unclean; It is large that the stokehold personnel must at high temperature make mud again, and labour intensity is large, also delays normal tapping outlet and tap a blast furnace, and causes blast furnace checking underproduction accident.
The Chinese patent application part that relates to blast furnace gun is a lot, such as No. 200320129983.6 " composite gun head of blast furnace clay gun ", No. 200620052115.6 " blast furnace taphole gun muzzle head ", No. 200820111415.6 " a kind of big gun head of blast furnace mud gun ", No. 200920070472.9 " the big gun head of blast furnace tapping-hole clay gun ", No. 201020243824.9 " a kind of improvement structures of blast furnace mud gun cap " etc.But when the big gun cap is burnt out by the molten iron that pours down from iron mouth eye or big gun head cap when being overlapped inner product iron pad and live by mud, stifled iron notch still can produce the mud accident of emitting in the stifled iron notch operation.
Summary of the invention
The purpose of this utility model is to provide a kind of blast furnace mud gun head, to overcome the deficiencies in the prior art, improves better the service efficiency of blast furnace gun.
The designer uses the experience of being engaged in for a long time stokehold iron mouth operation, and it is unreasonable frequently to emit the mud reason to be summarized as the design of big gun head cap in the iron mouth.
For addressing this problem, the blast furnace mud gun head that the designer provides, still formed by middle joint and big gun head cap, the big gun head cap is installed in middle joint one end, the other end of middle joint is connected with the clay gun transition conduit by pin, different from original technology is that the designer changes the front end of cylindrical big gun head cap into small-bore steep-taper shape big gun head cap.
The size of above-mentioned blast furnace small-bore steep-taper big gun head cap and original big gun head cap is very different, and is specially:
The outer bore 260mm of original design big gun head cap now changes 150mm into;
Bore 150mm in the original design big gun head cap now changes 120mm into;
The original design big gun head cap mouth thickness 55mm of place now changes 15mm into;
Original design big gun head cap cylindricality, overall length 130mm; Now change cylindrical length 40mm into, cone length 90mm.
Original design big gun head cap mouth and iron mouth mud cover sealing surface area are 0.0355m
3, now change 0.0063m into
3
Because big gun head cap size has changed, compare before small-bore steep-taper big gun head cap after the improvement contacts area and do not improve with iron mouth mud cover and reduce 5.6 times, in the constant situation of pressure of former pressure big gun, during with the small-bore steep-taper big gun head cap stifled iron notch after improving, the big gun head cap has increased 5.6 times to the snap-in force of iron mouth mud cover.Thereby the mud accident of emitting when substantially having stopped stifled iron notch occurs.
Small-bore steep-taper big gun head after the improvement has solved following three difficult problems:
Compress the technological deficiency of easily emitting mud when scarce capacity causes stifled iron notch when (1) having overcome original big gun head cap stifled iron notch, the ability of big gun head cap compacted iron mouth mud cover has improved 5.6 times when making the clay gun stifled iron notch, substantially stops stifled iron notch and emits the mud accident;
(2) during stifled iron notch, the cone inclined-plane is difficult for being burnt out by molten iron, and the big gun head cap is burnt out and produce the stifled mud accident of emitting of iron mouth when having avoided stifled iron notch by molten iron, uses proof, and the small-bore steep-taper big gun head cap after the improvement is 5 times of cylindricality big gun head cap work-ing life;
(3) solved the iron that easily agglutinates in the iron mouth mud cover in the process of tapping a blast furnace, solidifying iron pad is lived the big gun head cap and is produced an accident difficult problem of emitting mud when causing stifled iron notch.
Description of drawings
Fig. 1 is the blast furnace mud gun header structure figure before improving; Fig. 2 is the blast furnace mud gun head assembling plan view before improving; Fig. 3 is the blast furnace mud gun header structure figure after improving; Fig. 4 is the blast furnace mud gun head assembling plan view after improving.
1 is the big gun head cap among the figure, and 2 is middle joint, and 3 is pin, and 4 is the clay gun transition conduit.
Embodiment
Embodiment
The original former cylindrical cap big gun header structure of Shougang Shuicheng Iron ﹠ Steel's iron work assembles as shown in Figure 1 such as Fig. 2.
From 2002---successively used the big gun head after improving on one blast furnace, three blast furnaces, 450 cubes of blast furnaces of four blast furnaces and Bo Hongjin river company successively at 2 blast furnaces in 2010, the flushing and casting personnel are quite satisfied to result of use.Big gun head after the improvement is comprised of middle joint 2 and big gun head cap 1, and big gun head cap 1 is installed in an end of middle joint 2, and the other end of middle joint 2 is connected with clay gun transition conduit 4 by pin 3, and big gun head cap 1 is the shape of small-bore steep-taper.
The concrete size of big gun head cap (1) is: its outer bore is 150mm; Interior bore 120mm: the thick 15mm of capped pipe; Cylindrical portion length 40mm, the long 90mm of front end cone, big gun head cap overall length 130mm; One section long external diameter of cap front end 90mm is 150mm; Internal diameter is 120mm; It is 0.0063m that the thickness 150mm of cap mouth place, cap mouth and iron mouth compress mud cover sealing surface area
3
This is domestic first small-bore steep-taper big gun head cap that uses at the blast furnace stifled iron notch, press the sealing compression ability of big gun envelope stifled iron notch mud cover to increase 5.6 times after using, on stopped stifled iron notch and emitted the mud accident, significantly reduce the stokehold and frequently emit the passive number of times of at high temperature making iron mouth mud cover of mud because of the iron mouth, guarantee that blast furnace normally produces.
Claims (2)
1. blast furnace mud gun head, formed by middle joint (2) and big gun head cap (1), big gun head cap (1) is installed in an end of middle joint (2), the other end of middle joint (2) is connected with clay gun transition conduit (4) by pin (3), it is characterized in that described big gun head cap (1) is the taper of small-bore steep-taper.
2. big gun head as claimed in claim 1, it is characterized in that the concrete size of described big gun head cap (1) is: its outer bore is 150mm; Interior bore 120mm: the thick 15mm of capped pipe; Shell of column length 40mm, the long 90mm of front end cone, big gun head cap overall length 130mm; One section long external diameter of cap front end 90mm is 150mm; Internal diameter is 120mm; It is 0.0063m that the thickness 150mm of cap mouth place, cap mouth and iron mouth compress mud cover sealing surface area
3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220045150 CN202688348U (en) | 2012-02-13 | 2012-02-13 | Gun head of blast furnace clay gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220045150 CN202688348U (en) | 2012-02-13 | 2012-02-13 | Gun head of blast furnace clay gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202688348U true CN202688348U (en) | 2013-01-23 |
Family
ID=47543995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220045150 Expired - Lifetime CN202688348U (en) | 2012-02-13 | 2012-02-13 | Gun head of blast furnace clay gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202688348U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106119451A (en) * | 2016-08-24 | 2016-11-16 | 安徽马钢重型机械制造有限公司 | High temperature resistant encapsulation filler bar process units and blast furnace gun and production method that this device is installed |
| CN111560487A (en) * | 2020-06-03 | 2020-08-21 | 北京首钢股份有限公司 | Treatment device and method for molten iron splashing of blast furnace taphole channel |
| US10975449B2 (en) * | 2018-05-11 | 2021-04-13 | J. C K. Industries, Inc. | Mud gun cap |
-
2012
- 2012-02-13 CN CN 201220045150 patent/CN202688348U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106119451A (en) * | 2016-08-24 | 2016-11-16 | 安徽马钢重型机械制造有限公司 | High temperature resistant encapsulation filler bar process units and blast furnace gun and production method that this device is installed |
| CN106119451B (en) * | 2016-08-24 | 2017-12-19 | 安徽马钢重型机械制造有限公司 | High temperature resistant encapsulation filler bar process units and the blast furnace gun and production method for installing the device |
| US10975449B2 (en) * | 2018-05-11 | 2021-04-13 | J. C K. Industries, Inc. | Mud gun cap |
| CN111560487A (en) * | 2020-06-03 | 2020-08-21 | 北京首钢股份有限公司 | Treatment device and method for molten iron splashing of blast furnace taphole channel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |
|
| CX01 | Expiry of patent term |