CN113234888A - Slag stopping rod feeding device - Google Patents
Slag stopping rod feeding device Download PDFInfo
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- CN113234888A CN113234888A CN202110460422.7A CN202110460422A CN113234888A CN 113234888 A CN113234888 A CN 113234888A CN 202110460422 A CN202110460422 A CN 202110460422A CN 113234888 A CN113234888 A CN 113234888A
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- China
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- rod
- slag
- pull rod
- hollow
- cantilever
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4653—Tapholes; Opening or plugging thereof
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
Abstract
The invention discloses a slag stopping rod throwing device. The slag-stopping device comprises a hollow cantilever rod, wherein the front end of the hollow cantilever rod is provided with an upper slag-stopping rod jack and a lower slag-stopping rod jack; a pull rod is coaxially and slidably arranged in the hollow cantilever rod; a slag stopping rod through hole is arranged at the front end of the pull rod corresponding to the slag stopping rod inserting hole; the rear end of the hollow cantilever rod is provided with a partition plate, and the rear section of the pull rod penetrates through the partition plate and extends out of the hollow cantilever rod; a spring fixing piece is arranged at the rear section of the pull rod close to the rear end, and a spring is sleeved between the spring fixing piece and the partition plate; the spring enables the slag blocking rod through hole of the pull rod to generate deviation of a preset distance backwards relative to the slag blocking rod inserting hole of the hollow cantilever rod; a driving cylinder is integrally arranged on one side of the partition board far away from the hollow cantilever rod, a controlled driving device is arranged in the driving cylinder, and the controlled driving device drives the pull rod to move forwards when being controlled. The invention can realize two modes of slag stopping rod clamping and throwing.
Description
Technical Field
The invention relates to a converter slag stopping rod feeding device in the metallurgical industry.
Background
The slag blocking rod is widely researched for blocking slag in the later period of the converter, a bridge cantilever rod mechanism between the slag blocking rod feeding device and the converter is an indispensable and replaceable mechanism, the existing cantilever rod mechanism only has the clamping and feeding functions of the slag blocking rod, and the existing cantilever rod mechanism is single in function and cannot well complete accurate feeding and emergency feeding.
Disclosure of Invention
In order to overcome the defects, the invention aims to provide a novel pushing device for a slag stopping rod.
In order to achieve the technical problem, the cantilever rod mechanism of the slag stopping rod throwing device comprises a hollow cantilever rod, wherein a slag stopping rod insertion hole is formed in the front end of the hollow cantilever rod; a pull rod is coaxially and slidably arranged in the hollow cantilever rod; a slag stopping rod through hole is arranged at the front end of the pull rod corresponding to the slag stopping rod inserting hole;
the rear end of the hollow cantilever rod is provided with a clapboard,
the rear section of the pull rod penetrates through the partition plate and extends out of the hollow cantilever rod;
a spring fixing piece is arranged at the rear section of the pull rod close to the rear end, and a spring is sleeved between the spring fixing piece and the partition plate;
a driving cylinder is integrally arranged on one side of the partition board far away from the hollow cantilever rod, a controlled driving device is arranged in the driving cylinder, and the controlled driving device drives the pull rod to move forwards when being controlled.
Furthermore, the controlled driving device is a throwing oil cylinder, and the output end of the throwing oil cylinder is arranged corresponding to the tail part of the pull rod.
Furthermore, the controlled driving device also comprises a manual throwing device; the manual throwing device comprises: a push ring is arranged at the tail part of the pull rod and is sleeved on the output end of the throwing oil cylinder; the opening part of a U-shaped fork is hinged on the push ring; the handle part of the U-shaped fork penetrates through the driving cylinder and is connected with the stress rod, and the middle position of the handle part of the U-shaped fork is hinged on the driving cylinder.
Furthermore, a counterweight (3) is arranged at the rear end (10) of the driving cylinder.
Furthermore, a support arm is arranged at the position of the hollow cantilever rod close to the partition 2/3, and the lower end of the support arm is hinged on the first base through a pin shaft.
Furthermore, the device also comprises a driving device for driving the hollow cantilever rod to rotate, wherein one end of the driving device is hinged on the second base, and the other end of the driving device is hinged on one side of the hollow cantilever rod close to the partition board.
Further, the cantilever bar mechanism is provided with an air cooling pipeline.
Furthermore, a protection plate is arranged at the position, close to the front end, of the hollow cantilever rod.
Furthermore, the throwing condition of the slag blocking rod is simulated through CAD, the length of the front end of the cantilever rod and the included angle alpha between the front end of the cantilever rod and the horizontal line are determined, the included angle (acute angle) between the front end of the cantilever rod and the slag blocking rod is 90-alpha, when the slag blocking rod is thrown, the cantilever rod mechanism rotates alpha angle from the horizontal position to reach a throwing point, the slag blocking rod is surely and vertically thrown into a steel tapping hole, and no floating rod occurs.
Furthermore, a slag stopping rod clamping auxiliary part is arranged at the front end of the cantilever rod corresponding to the pull rod end, the clamping auxiliary part comprises a bottom plate provided with a hollow part at the front end of the cantilever rod, and a through hole is formed in the middle of the bottom plate; the front end of the pull rod penetrates through the through hole; the bottom plates on the upper side and the lower side of the through hole are respectively provided with a stop block, a V-shaped open slot is arranged on the end face of the front side of the stop block, which corresponds to the clamping hole on the pull rod, and the opening of the V-shaped open slot faces the front of the stop block.
Furthermore, more than three supporting blades are arranged on the pull rod at preset intervals along the length direction of the pull rod, and every 3 supporting blades are arranged at equal intervals along the circumferential direction of the pull rod.
According to the cantilever rod mechanism of the slag stopping rod throwing device, the slag stopping rod can be clamped and thrown under the combined action of the throwing oil cylinder, the push rod, the stress nut, the pull rod and the slag stopping rod clamping auxiliary component, and the slag stopping rod clamping auxiliary component can be used for manufacturing different clamping angles according to different working conditions; compared with the prior art, the invention has the advantages that: the device can realize the clamping and the throwing of the slag stopping rod in two modes, can effectively solve the problem that the slag stopping rod is thrown and the cantilever rod is withdrawn from the converter under the condition that a hydraulic and electric control system fails. In the throwing process, the rotary furnace can definitely rotate to the position of the throwing point according to the rotation angle of the monitoring cantilever rod, when the hydraulic and electric control system breaks down, throwing can still be achieved, the front end of the cantilever rod is lifted up, and the rotary furnace is withdrawn, so that accurate throwing and system safety are ensured. The invention is based on the ground slag stopping rod throwing device, can be used by slightly changing the suspended slag stopping rod throwing device, and has strong universality.
Drawings
FIG. 1 is a schematic structural view of a slag stopping rod throwing device of the invention.
Figure 2 is an enlarged cross-sectional view of the push ring of the manual delivery member of figure 1.
FIG. 3 is an enlarged cross-sectional view of the front end of the hollow cantilever bar of FIG. 1.
FIG. 4 is a top schematic view of the slag bar retaining aid member of FIG. 1.
FIG. 5 is a front schematic view of the slag bar holding assist member of FIG. 4.
FIG. 6 is a schematic view of the cantilever bar mechanism clamping the vertical drop of the slag bar.
Fig. 7 is a schematic structural view of the pull rod portion.
Fig. 8 is a side view of fig. 7.
Detailed Description
The invention is further elucidated with reference to the accompanying drawings. A counterweight 1; the embodiment of the throwing oil cylinder 2, the push rod 3, the push ring 4, the partition plate 5, the manual throwing part 6, the spring 7, the pull rod 8, the driving cantilever rod rotating oil cylinder 9, the cantilever rod 10, the air cooling pipeline 11, the pin shaft 12, the protection plate 13 and the slag stopping rod clamping auxiliary part 15
As shown in fig. 1 to 8, the cantilever bar mechanism of the slag-stopping rod throwing device of the invention comprises a hollow cantilever bar 10; a slag stopping rod insertion hole 101 is formed in the front end of the hollow cantilever rod; a pull rod 8 is coaxially and slidably arranged in the hollow cantilever rod; a slag stopping rod through hole is arranged at the front end of the pull rod corresponding to the slag stopping rod inserting hole; the rear end of the hollow cantilever rod is provided with a clapboard 5,
the rear section of the pull rod 8 passes through the partition plate and extends out of the hollow cantilever rod;
a spring fixing piece is arranged at the rear section of the pull rod close to the rear end, and a spring 7 is sleeved between the spring fixing piece and the partition plate; the spring 7 enables the slag stopping rod through hole of the pull rod to generate deviation of a preset distance backwards relative to the slag stopping rod inserting hole of the hollow cantilever rod;
a driving cylinder is integrally arranged on one side, far away from the hollow cantilever rod, of the partition plate 5, a controlled driving device is arranged in the driving cylinder, and the controlled driving device drives the pull rod to move forwards when being controlled. The controlled driving device is a throwing oil cylinder 2, and the output end of the throwing oil cylinder is arranged corresponding to the tail part of the pull rod.
The device also comprises a manual throwing device; the manual throwing device comprises: the tail part of the pull rod is provided with a push ring 4, and the opening part of a U-shaped fork 6 is hinged on the push ring; the handle part of the U-shaped fork penetrates through the driving cylinder and is connected with the stress rod 61, and the middle position of the handle part of the U-shaped fork 6 is hinged on the driving cylinder. The manual throwing-in component 6, the push ring 4, the pull rod 8 and the slag stopping rod clamping auxiliary component 15 can also realize the clamping and throwing of the slag stopping rod under the combined action; the manual throwing component drives the push ring to push the pull rod by utilizing the lever principle, the push ring and the pull rod only carry out centering contact on transmission force and are not connected, but only need manual driving in the clamping and throwing process. Under the normal hydraulic and electric conditions, the output end of the throwing oil cylinder penetrates through the push ring 4 and abuts against the tail part of the pull rod, and the throwing can be carried out through the oil cylinder; when hydraulic and electric faults occur, the U-shaped fork 6 is driven by the stress rod 61 to drive the push ring to drive the tail of the pull rod forwards. Meanwhile, after the slag blocking rod is put in, the rotating component (including the oil cylinder) of the cantilever rod is driven to increase the pressure relief bypass, after partial pressure is removed, the front end of the cantilever rod is lifted by the balance weight of the cantilever rod, the valve of the pressure relief bypass is closed, the slag blocking device can be pushed to exit the converter, and the influence on the steelmaking of the converter caused by the overlong time and the damage of the front end of the cantilever rod in the converter is avoided.
The structure is beneficial to cooling the whole cantilever rod by an air cooling pipeline 11 connected with the middle part of the cantilever rod.
The lower end of the driving oil cylinder 9 is arranged on the base, the upper end of the driving oil cylinder is arranged at the rear section of the hollow cantilever rod through a connecting piece, and the driving oil cylinder can drive the hollow cantilever rod to rotate.
Furthermore, a protection plate 13 is arranged in the middle of the cantilever rod, so that accidents in the throwing process can be prevented. The middle part of the cantilever rod is provided with a supporting arm which is hinged on the base through a pin shaft 12, and the pin shaft 12 can be connected with a scale indicating device and then can monitor the rotating angle of the cantilever rod mechanism.
As shown in fig. 3, in the slag bar clamping auxiliary component, the clamping angle is determined comprehensively according to the CAD simulated slag bar putting, and includes the position of the slag bar putting device to be put, the length of the slag bar, the height of the cantilever bar, the position of the converter and other factors, and a proper clamping angle (90 ° - α) is selected, as shown in fig. 6, the putting can be started only after the rotation α of the cantilever bar is monitored, which is convenient and accurate.
In conclusion, under the combined action of the feeding oil cylinder, the push rod, the stress nut, the pull rod and the slag stopping rod clamping auxiliary component, the slag stopping rod can be clamped and fed, the push rod is not connected with the stress nut and only transmits force, meanwhile, the push rod is in clearance fit with the push ring, when the component is manually fed, the push ring is not influenced by the push rod, the stress rod of the manually fed component is acted by manpower, the driving fork drives the push ring to swing through the rotating pin shaft, and the slag stopping rod is manually fed.
Claims (10)
1. A slag stopping rod throwing device is characterized by comprising a hollow cantilever rod, wherein the front end of the hollow cantilever rod is provided with an upper slag stopping rod insertion hole and a lower slag stopping rod insertion hole; a pull rod is coaxially and slidably arranged in the hollow cantilever rod; a slag stopping rod through hole is arranged at the front end of the pull rod corresponding to the slag stopping rod inserting hole;
the rear end of the hollow cantilever rod is provided with a clapboard,
the rear section of the pull rod penetrates through the partition plate and extends out of the hollow cantilever rod;
a spring fixing piece is arranged at the rear section of the pull rod close to the rear end, and a spring is sleeved between the spring fixing piece and the partition plate; the spring enables the slag blocking rod through hole of the pull rod to generate deviation of a preset distance backwards relative to the slag blocking rod inserting hole of the hollow cantilever rod;
a driving cylinder is integrally arranged on one side of the partition board far away from the hollow cantilever rod, a controlled driving device is arranged in the driving cylinder, and the controlled driving device drives the pull rod to move forwards when being controlled.
2. The slag bar dropping device according to claim 1, wherein the controlled driving device is a dropping cylinder, and an output end of the dropping cylinder is arranged corresponding to the tail of the pull rod.
3. The slag bar delivery apparatus of claim 2, wherein the controlled drive means further comprises a manual delivery means; the manual throwing device comprises: a push ring is arranged at the tail part of the pull rod and is sleeved on the output end of the throwing oil cylinder; the opening part of the U-shaped fork is arranged corresponding to the push ring in a sliding way; the handle part of the U-shaped fork penetrates through the driving cylinder and is connected with the stress rod, and the middle position of the handle part of the U-shaped fork is hinged on the driving cylinder; .
4. The slag bar delivery device according to claim 1, wherein the rear end (10) of the drive cylinder is provided with a counterweight; the cantilever rod mechanism is provided with an air cooling pipeline.
5. The slag bar delivery device of claim 1, wherein a support arm is disposed at a position of the hollow cantilever bar near the partition 2/3, and a lower end of the support arm is hinged to the first base via a pin.
6. The slag bar delivery apparatus of claim 1, further comprising a drive mechanism for rotating the hollow cantilevered lever, wherein one end of the drive mechanism is pivotally coupled to the second base and the other end of the drive mechanism is pivotally coupled to the hollow cantilevered lever proximate the partition.
7. The slag-stopping rod throwing device according to claim 1, wherein a slag-stopping rod clamping auxiliary member is arranged at the front end of the cantilever rod corresponding to the pull rod end, the clamping auxiliary member comprises a bottom plate provided with a hollow part at the front end of the cantilever rod, and a through hole is arranged in the middle of the bottom plate; the front end of the pull rod penetrates through the through hole; the bottom plates on the upper side and the lower side of the through hole are respectively provided with a stop block, a V-shaped open slot is arranged on the end face of the front side of the stop block, which corresponds to the clamping hole on the pull rod, and the opening of the V-shaped open slot faces the front of the stop block.
8. The slag bar delivery device of claim 1, wherein a shield is disposed proximate the front end of the hollow cantilever bar.
9. The apparatus of claim 1, wherein a scale indicator is coupled to the pin of the first base.
10. The apparatus of claim 1, wherein the slag bar is held such that a central axis of the slag bar is angled with respect to the slag bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110460422.7A CN113234888A (en) | 2021-04-27 | 2021-04-27 | Slag stopping rod feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110460422.7A CN113234888A (en) | 2021-04-27 | 2021-04-27 | Slag stopping rod feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113234888A true CN113234888A (en) | 2021-08-10 |
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ID=77129481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110460422.7A Pending CN113234888A (en) | 2021-04-27 | 2021-04-27 | Slag stopping rod feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113234888A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2576719Y (en) * | 2002-09-29 | 2003-10-01 | 宝山钢铁股份有限公司 | Suspended slag-baffling-cork (rod dart) throwing device |
| CN2830413Y (en) * | 2005-10-20 | 2006-10-25 | 中冶南方工程技术有限公司 | Level regulation floating idler roller of suspension slag rod throw-in device |
| CN102676731A (en) * | 2012-05-18 | 2012-09-19 | 中冶华天工程技术有限公司 | Suspension type skimbar putting device |
| CN203999672U (en) * | 2014-06-24 | 2014-12-10 | 中冶华天工程技术有限公司 | Hydraulic servo type scum rod jettison system |
| CN110273045A (en) * | 2019-07-20 | 2019-09-24 | 联峰钢铁（张家港）有限公司 | A kind of slag stopping rod throwing device |
| CN215250986U (en) * | 2021-04-27 | 2021-12-21 | 中冶华天工程技术有限公司 | Novel pushing device for slag blocking rod |
-
2021
- 2021-04-27 CN CN202110460422.7A patent/CN113234888A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2576719Y (en) * | 2002-09-29 | 2003-10-01 | 宝山钢铁股份有限公司 | Suspended slag-baffling-cork (rod dart) throwing device |
| CN2830413Y (en) * | 2005-10-20 | 2006-10-25 | 中冶南方工程技术有限公司 | Level regulation floating idler roller of suspension slag rod throw-in device |
| CN102676731A (en) * | 2012-05-18 | 2012-09-19 | 中冶华天工程技术有限公司 | Suspension type skimbar putting device |
| CN203999672U (en) * | 2014-06-24 | 2014-12-10 | 中冶华天工程技术有限公司 | Hydraulic servo type scum rod jettison system |
| CN110273045A (en) * | 2019-07-20 | 2019-09-24 | 联峰钢铁（张家港）有限公司 | A kind of slag stopping rod throwing device |
| CN215250986U (en) * | 2021-04-27 | 2021-12-21 | 中冶华天工程技术有限公司 | Novel pushing device for slag blocking rod |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210810 |
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| RJ01 | Rejection of invention patent application after publication |