CN103451336A - Coal spraying gun centering locking apparatus - Google Patents
Coal spraying gun centering locking apparatus Download PDFInfo
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- CN103451336A CN103451336A CN2012101788709A CN201210178870A CN103451336A CN 103451336 A CN103451336 A CN 103451336A CN 2012101788709 A CN2012101788709 A CN 2012101788709A CN 201210178870 A CN201210178870 A CN 201210178870A CN 103451336 A CN103451336 A CN 103451336A
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- coal
- centering
- housing
- spouting gun
- spraying gun
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Abstract
The invention provides a coal spraying gun centering locking apparatus. The coal spraying gun centering locking apparatus is characterized in that centering members driven by a double headed screw are arranged, and can lock a coal spraying gun when the centering members gather. The apparatus has an effect that a fixing point is added to the coal spraying gun to change the inherent vibration frequency of the coal spraying gun, reduce the length of the cantilever of the coal spraying gun, reduces the vibration amplitude of the coal spraying gun and eliminate the resonance of the coal spraying gun. The apparatus can centralize the coal spraying gun; present coal spraying guns has only one fixing point, so the present coal spraying guns easily sag; and the apparatus can ensure a gun insert center position in a centering direct-blow tube of the coal spraying gun, and reduces the wearing danger of an air port by coal dust.
Description
Technical field
The invention belongs to technical field of blast furnace ironmaking, relate to furnace coal spraying technology, in particular for the centering locking latches of coal powder lance for blast furnace.
Background technology
As everyone knows, for the coal spouting gun of pulverized coal injection in blast furnace, normally one not with or the heat resisting pipe of safeguard procedures is slightly arranged, it inserts in belly pipe from plugging in the rifle hole path, by a tightness system of its tail end, fix, be in cantilever position.In blast furnace production process, because coal spouting gun only has a point of fixity, fix, and, in cantilever position, therefore, under the blowing of hot blast, coal spouting gun is vibrating of continuing by certain frequency all the time.
In recent years, along with the stove wind-warm syndrome that enters of blast furnace improves, in order to ensure the work-ing life of coal spouting gun, large blast furnace starts progressively to make air-cooled Double-layer sleeve-type coal spouting gun.This coal spouting gun diameter is larger, in belly pipe, by hot blast, is blown, and it vibrates aggravation.Especially from now on blast furnace is after generally adopting coal injection burner, because the weight of burner self can make in the coal spouting gun of cantilever position sagging, add the artificial reasons such as rifle is inaccurate of inserting, can make the fin of burner can not be parallel with the belly pipe medullary ray, therefore more can cause coal spouting gun vibration aggravation, when serious, will there will be the coal spouting gun resonance effect, cause the blast furnace blowing operational difficulty, and may cause the air port wearing and tearing.
Except above-mentioned situation, because coal spouting gun only has a point of fixity, and, in cantilever position, this makes coal spouting gun make its nose drop because of own wt, causes coal spouting gun to be difficult to the center of collimation blowpipe.When coal spouting gun is difficult to collimation blowpipe central position, the coal dust air port of easily wearing and tearing.
Summary of the invention
A kind of coal spouting gun centering locking latches that the present invention proposes, being intended to increases a point of fixity to coal spouting gun, changes the coal spouting gun natural vibration frequency, reduces Oscillation Amplitude, eliminates the generation of above-mentioned resonance effect; Simultaneously, make the easier centering of coal spouting gun plug in the rifle central position, lower the danger in coal dust wearing and tearing air port.
A kind of coal spouting gun centering locking latches, at least be comprised of housing, upper centering piece, lower centering piece, double threaded screw, guide rod, positioning element, seal assembly, handle.In housing, upper centering piece is passed by the double threaded screw of parallel installation and guide rod respectively with lower centering piece, and double threaded screw and the guide rod part that is positioned is fixed on housing; Double threaded screw has an end to stretch out outside housing, sealed component sealing; A handle of end outside double threaded screw is exposed to housing welding, turning handle, double threaded screw can by upper centering piece and lower centering piece converges or separately.
Above-mentioned housing, its outside two ends all are connected to short tube and flange, as single equipment, can be convenient for changing.
Above-mentioned housing, its outside termination has short tube and flange, and the other end is to be combined into one with ball valve, to facilitate manufacture and to dwindle installation dimension.
Above-mentioned housing, its outside termination has short tube and flange, and the other end is to join with the plug in rifle hole inlet duct of belly pipe, to facilitate, utilizes to greatest extent the existing belly pipe finite space, makes the contraction in length of coal spouting gun cantilever.
Above-mentioned upper centering piece and lower centering piece, its hole contacted with double threaded screw is threaded, and its contact coal spouting gun one side has tiger’s jaw, and this tiger’s jaw is central position arranged off-centre or that be arranged in length direction.
Above-mentioned double threaded screw, screw thread one side of its both sides is left-handed, opposite side is dextrorotation.
The invention has the beneficial effects as follows:
(1) the coal spouting gun centering locking latches that the present invention proposes, in the situation that rotary handle locking coal spouting gun, being equivalent to increases a point of fixity to coal spouting gun, can change the natural vibration frequency of coal spouting gun, reduce the length of coal spouting gun cantilever, lower the Oscillation Amplitude of coal spouting gun, the resonance that can eliminate coal spouting gun occurs.
(2) the coal spouting gun centering locking latches that the present invention proposes, there is alignment function, only have a point of fixity, easily cause the sagging situation of coal spouting gun to compare with existing coal spouting gun, the present invention can guarantee the plug in rifle central position in coal spouting gun collimation blowpipe, lowers the danger in coal dust wearing and tearing air port.
The accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention, is the A-A cross sectional view of Fig. 2.
The schematic diagram that Fig. 2 is the embodiment of the present invention 1.
Fig. 3 is centering locking state schematic diagram of the present invention.
The schematic diagram that Fig. 4 is the embodiment of the present invention 2.
The schematic diagram that Fig. 5 is embodiment 3
In figure, 1 is coal spouting gun, and 2 is housing, and 3 is positioning element, and 4 is upper centering piece, and 5 is lower centering piece, and 6 is double threaded screw, and 7 is guide rod, and 8 is seal assembly, and 9 is handle, and 10 is short tube, and 11 is flange, and 12 is ball valve, and 13 is belly pipe, and 14 for plugging in rifle hole inlet duct.
Embodiment
As shown in Figure 1, coal spouting gun centering locking latches at least is comprised of housing 2, strongback 3, upper centering piece 4, lower centering piece 5, double threaded screw 6, guide rod 7, seal assembly 8, handle 9.In housing 2, upper centering piece 4 is passed by the double threaded screw 6 of parallel installation and guide rod 7 respectively with lower centering piece 5, and double threaded screw 6 and guide rod 7 are fixed on housing 2 by upper and lower two positioning elements 3; Double threaded screw 6 has an end to stretch out outside housing 2, sealed assembly 8 sealings; A handle 9 of end outside double threaded screw 6 is exposed to housing 2 welding, turning handle 9, double threaded screw 6 can by upper centering piece 4 and lower centering piece 5 converges or separately.
As shown in Figure 3, upper centering piece 4 and lower centering piece 5 converge, by coal spouting gun 1 locking.As shown in Figure 1, when upper centering piece 4 and lower centering piece 5 separate, can make coal spouting gun 1 through apparatus of the present invention.
As shown in Figure 2, in housing 2 outsides, its both sides all are connected to short tube 10 and flange 11.At this moment, coal spouting gun centering locking latches is manufactured as single equipment, to be convenient for changing.
As shown in Figure 4, in housing 2 outsides, the one side joint has short tube 10 and flange 11, and opposite side is to be combined into one with ball valve 12.At this moment, coal spouting gun centering locking latches is the part of ball valve, and this can conveniently manufacture and dwindle installation dimension.
As shown in Figure 5, in housing 2 outsides, the one side joint has short tube 10 and flange 11, and opposite side is to join with the plug in rifle hole inlet duct 14 of belly pipe 13.At this moment, coal spouting gun centering locking latches is the part of belly pipe 13, and limited space under the existing belly pipe size of this convenient utilization to greatest extent, make the length of coal spouting gun 1 cantilever be reduced to the shortest.
As shown in Figure 3, upper centering piece 4 is threaded with the hole that lower centering piece 5 contacts with double threaded screw 6, and the hole contacted with guide rod is circular hole.Upper centering piece 4 contacts coal spouting gun 1 one sides with lower centering piece 5 and has tiger’s jaw, and this tiger’s jaw is central position arranged off-centre or that be arranged in length direction.
As shown in Figure 3, the screw thread of the both sides of double threaded screw, a side is left-handed, opposite side is dextrorotation.
Figure of description 1 is Figure of abstract.In specification sheets, described coal spouting gun 1, belly pipe 13 and plug in rifle hole inlet duct 14 thereof are prior art contents.
Claims (5)
1. a coal spouting gun centering locking latches, at least by housing, upper centering piece, lower centering piece, double threaded screw, guide rod, positioning element, seal assembly, handle, formed, it is characterized in that: in housing, upper centering piece is passed by the double threaded screw of parallel installation and guide rod respectively with lower centering piece, and double threaded screw and the guide rod part that is positioned is fixed on housing; Double threaded screw has an end to stretch out outside housing, sealed component sealing; A handle of end outside double threaded screw is exposed to housing welding, turning handle, double threaded screw can by upper centering piece and lower centering piece converges or separately.
2. coal spouting gun centering locking latches according to claim 1, it is characterized in that: described housing, its outside two ends all are connected to short tube and flange.
3. coal spouting gun centering locking latches according to claim 1 is characterized in that: described housing, and its outside termination has short tube and flange, and the other end is to be combined into one with ball valve.
4. coal spouting gun centering locking latches according to claim 1 is characterized in that: described housing, and its outside termination has short tube and flange, and the other end is to join with the plug in rifle hole inlet duct of belly pipe.
5. coal spouting gun centering locking latches according to claim 1 is characterized in that: described upper centering piece and lower centering piece, and its contact coal spouting gun one side has tiger’s jaw, and the center of tiger’s jaw is central position arranged off-centre or that be arranged in length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101788709A CN103451336A (en) | 2012-06-01 | 2012-06-01 | Coal spraying gun centering locking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101788709A CN103451336A (en) | 2012-06-01 | 2012-06-01 | Coal spraying gun centering locking apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103451336A true CN103451336A (en) | 2013-12-18 |
Family
ID=49734169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101788709A Pending CN103451336A (en) | 2012-06-01 | 2012-06-01 | Coal spraying gun centering locking apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103451336A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01247512A (en) * | 1988-03-30 | 1989-10-03 | Sumitomo Metal Ind Ltd | Method for blowing liquid fuel in blast furnace |
| JPH03150306A (en) * | 1989-11-07 | 1991-06-26 | Nkk Corp | Lance for blowing fine powdered coal |
| JPH06207210A (en) * | 1993-01-08 | 1994-07-26 | Kanmeta Eng Kk | Nozzle for blowing pulverized coal into furnace in iron-making apparatus and manufacture thereof |
| US5544868A (en) * | 1995-07-31 | 1996-08-13 | National Steel Corporation | Blow pipe and gas lance for blast furance |
| CN201195728Y (en) * | 2008-05-16 | 2009-02-18 | 武汉钢铁(集团)公司 | Blast furnace ironmaking coal powder injection gun |
| CN202595164U (en) * | 2012-06-01 | 2012-12-12 | 张昭贵 | Centering and locking device of coal injection gun |
-
2012
- 2012-06-01 CN CN2012101788709A patent/CN103451336A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01247512A (en) * | 1988-03-30 | 1989-10-03 | Sumitomo Metal Ind Ltd | Method for blowing liquid fuel in blast furnace |
| JPH03150306A (en) * | 1989-11-07 | 1991-06-26 | Nkk Corp | Lance for blowing fine powdered coal |
| JPH06207210A (en) * | 1993-01-08 | 1994-07-26 | Kanmeta Eng Kk | Nozzle for blowing pulverized coal into furnace in iron-making apparatus and manufacture thereof |
| US5544868A (en) * | 1995-07-31 | 1996-08-13 | National Steel Corporation | Blow pipe and gas lance for blast furance |
| CN201195728Y (en) * | 2008-05-16 | 2009-02-18 | 武汉钢铁(集团)公司 | Blast furnace ironmaking coal powder injection gun |
| CN202595164U (en) * | 2012-06-01 | 2012-12-12 | 张昭贵 | Centering and locking device of coal injection gun |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: WUXI SHILONG ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHANG ZHAOGUI Effective date: 20140604 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 401120 YUBEI, CHONGQING TO: 214135 WUXI, JIANGSU PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20140604 Address after: 214135 Jiangsu, Wuxi (Taihu) International Science and Technology Park Qingyuan Road No. 20 building foundation E-106 Applicant after: WUXI SHILONG ENERGY SCIENCE & TECHNOLOGY CO., LTD. Address before: 401120 2 New International Plaza 68, Jin Yu Avenue, 4-9 North Chongqing New District, Yubei District Applicant before: Zhang Zhaogui |
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| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131218 |