CN203904390U - KR (knotted reactor) process steel-making desulfurization molten steel liquid level detection system - Google Patents
KR (knotted reactor) process steel-making desulfurization molten steel liquid level detection system Download PDFInfo
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- CN203904390U CN203904390U CN201420284430.6U CN201420284430U CN203904390U CN 203904390 U CN203904390 U CN 203904390U CN 201420284430 U CN201420284430 U CN 201420284430U CN 203904390 U CN203904390 U CN 203904390U
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Abstract
The utility model discloses a KR (knotted reactor) process steel-making desulfurization molten steel liquid level detection system comprising a steel structure bracket, wherein winding engine equipment and a winding lifting track are arranged on the steel structure bracket; a winding trolley is arranged on the winding lifting track; a stirring head is arranged on the winding trolley; a winding steel wire rope of the winding engine equipment is connected with the winding trolley; a tension sensor is arranged on the winding steel wire rope; a positioning encoder is arranged on an output shaft of a speed reducer of the winding engine equipment; the tension sensor and the positioning encoder are respectively connected with a PLC (programmable logic controller) controller by virtue of a data line. According to the KR process steel-making desulfurization molten steel liquid level detection system disclosed by the utility model, whether the stirring head is inserted into the liquid level of molten steel can be qualitatively detected according to the tension change of the tension sensor in the uniform lifting process of KR process stirring equipment, the actual height of the liquid level of the molten steel can be accurately detected, and height data is fed back to a desulfurization automatic control system to participate in desulfurization control so as to precisely control the insertion depth of the stirring head, optimize the dynamic performance of desulfurization, and improve the desulfurization efficiency.
Description
Technical field
The utility model belongs to ferrous metallurgy field, particularly a kind of KR method steel desulfurization molten steel liquid level detecting system.
Background technology
KR stirring desulphurization technique is the stirring-head that pouring fireproof material is formed, after baking, insert in quantitative ladle and rotate, make molten iron produce whirlpool, then drop into quantitative sweetening agent to molten iron whirlpool district, make sweetening agent and Sulfur Content in Hot Iron, in the whirlpool constantly stirring, desulphurization reaction occur.The feature of stirring desulphurization technique maximum is to have fabulous desulfurization kinetics condition, and desulfuration efficiency is high.
In order to reach best desulfurization kinetics condition and sweetening effectiveness, the degree of depth that stirring-head inserts liquid steel level in iron ladle has very high requirement, therefore detect in steelmaking process actual liquid steel level height very important, and traditional contact and non-contact detection equipment have limitation, the main problem existing is: the test set of contact is if weight etc. is because being subject to the impact of molten steel high temperature (conventionally in 1400 degree left and right), and the failure rate of test set own is high, maintenance difficulty, maintenance cost is high, error is large; Contactless detection method is as ultrasound examination, and severe because of situ production link, instrument installation is difficult, maintenance difficulties is large, poor anti jamming capability, and detected result influence factor is many, unstable; In addition, the method that some industry spot utilizations are weighed is extrapolated the height of liquid steel level by Theoretical Calculation, this method can be used as reference in the situation that ladle lining does not consume, in actual production process, because ladle quantity is more, according to production technique difference and behaviour in service, loss situation cannot be added up at all, and the height error of calculating by the method for weighing is very large.
Summary of the invention
Goal of the invention: the purpose of this utility model is to provide a kind of ferrous metallurgy KR method steel desulfurization molten steel liquid level detecting system, accurately detects the actual height of liquid steel level by this system.
To achieve these goals, the utility model has adopted following technical scheme:
A kind of KR method steel desulfurization molten steel liquid level detecting system, comprises steel structure support, windlass equipment, hoisting track, hoisting trolley, stirring-head, pulling force sensor, position encoder and PLC controller; Windlass equipment and hoisting track are set on described steel structure support, on hoisting track, hoisting trolley is set, stirring-head is set on hoisting trolley, the hoisting rope of windlass equipment is connected with hoisting trolley, pulling force sensor is set on hoisting rope, on the speed reducer output shaft of windlass equipment, position encoder is set, pulling force sensor is connected with PLC controller respectively by data line with position encoder.
In the utility model, preferred, described stirring-head comprises stirring-head body, agitator arm and intake ducting, stirring-head body interior offers cavity, agitator arm one end is stretched in cavity and is fixed, and sheathed intake ducting in agitator arm, leaves gap between intake ducting and agitator arm.
Beneficial effect: by the variation of pulling force sensor measuring steel wire rope tension is installed on the wireline at windlass equipment, the position of position encoder detection stirring-head is installed on the speed reducer output shaft of windlass equipment, whether insert liquid steel level according to the tension variations qualitative detection stirring-head of KR method whipping device pulling force sensor in lifting process at the uniform velocity, can accurately detect the actual height of liquid steel level, and altitude information is fed back in desulfurization automatic control system and participates in desulphurization control, thereby accurately control stirring-head depth of penetration, optimize desulfurization kinetics performance, improve desulfuration efficiency.
Brief description of the drawings
Fig. 1 is that the utility model KR method steel desulfurization molten steel liquid level detecting system is arranged schematic diagram;
Fig. 2 is the structural representation of stirring-head in the utility model.
In figure: 1-steel structure support; 2-windlass equipment; 3-hoisting track; 4-hoisting trolley; 5-stirring-head; 51-stirring-head body; 52-agitator arm; 53-intake ducting; 54-cavity; 55-gap; 6-pulling force sensor; 7-ladle.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is done further and explained.
As shown in Figure 1, KR method steel desulfurization molten steel liquid level detecting system of the present utility model comprises steel structure support 1, windlass equipment 2, hoisting track 3, hoisting trolley 4, stirring-head 5, pulling force sensor 6, position encoder and PLC controller.Windlass equipment 2 is fixed on the top platform of steel structure support 1 one sides, hoisting track 3 is fixed on steel structure support 1 middle part, the hoisting trolley 4 that can move up and down along hoisting track 3 is installed on hoisting track 3, and hoisting trolley 4 bottoms are provided with stirring-head 5.The hoisting rope of windlass equipment 2 is connected with hoisting trolley 4 tops, drive hoisting trolley 4 to drive stirring-head 5 liftings by hoisting rope, pulling force sensor 6 is set on hoisting rope, the pulling force of hoisting rope detects by pulling force sensor 6, on the speed reducer output shaft of windlass equipment 2, position encoder is set, records the height location of stirring-head 5 and according to the liquid level position of the pulling force automatic detection analysis ladle 7 interior molten steel of hoisting rope by position encoder.
As shown in Figure 2, described stirring-head 5 comprises stirring-head body 51, agitator arm 52 and intake ducting 53, stirring-head body 51 inside offer cavity 54, agitator arm 52 one end are stretched in cavity 54 and are fixed, the interior sheathed intake ducting 53 of agitator arm 52, leaves gap 55 between intake ducting 53 and agitator arm 52.When stirring-head 5 is worked, stirring-head body 51 rotation under agitator arm 52 drives makes molten iron produce whirlpool, and in desulfurization whipping process, stirring-head body 51 temperature can raise gradually, in order to improve the life-span of stirring-head 5, need stirring-head body 51 to carry out cooling.In the present embodiment, in agitator arm 52, be arranged with intake ducting 53, by passing into pressurized air to intake ducting 53, pressurized air enters stirring-head body 51 inside through intake ducting 53, flowed out by the gap 55 between intake ducting 53 and agitator arm 52 again, thereby realize the circulation of pressurized air in stirring-head body 51 inside, realize cooling effect.
The liquid steel level height detection method of KR method steel desulfurization molten steel liquid level detecting system of the present utility model: drive hoisting trolley 4 to drive stirring-head 5 by the uniform velocity lifting of starting position by windlass equipment 2, because hoisting trolley 4 is certain with the lifting resistance of hoisting track 3, hoisting trolley 4 is the equal of a unsettled electronic scale, in hoisting trolley 4 decline processes, pulling force sensor 6 and position encoder respectively by the height location real-time data transmission of the value of thrust data of pulling force sensor 6 and stirring-head 5 to PLC controller; Because stirring-head 5 is to be formed by refractory material casting, refractory materials is according to the difference of starting material and content, and density is conventionally: 1.8～3.0k g/cm3, and the density of molten steel is: solid-state high temperature (more than 1200 DEG C) is 7.4kg/cm3; Liquid high temperature (more than 1600 DEG C) is 7.0kg/cm3, so easily draw, once stirring-head 5 partly or entirely inserts below liquid steel level, molten steel can produce a buoyancy upwards clearly to stirring-head 5, thereby reduce the value of thrust data of hoisting rope upper pulling force sensor, when PLC controller is during in the value of thrust data considerable change that pulling force sensor 6 detected, record the stirring-head 5 height location data that position encoder transmits, can draw the actual height of ladle 7 interior liquid steel levels.Detection system passes to liquid steel level data in desulfurization automation control system again, calculates the degree of depth of liquid steel level in stirring-head insertion iron ladle by automation control system, learns performance to reach desulfurization best power source, improves desulfuration efficiency.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (2)
1. a KR method steel desulfurization molten steel liquid level detecting system, is characterized in that: comprise steel structure support (1), windlass equipment (2), hoisting track (3), hoisting trolley (4), stirring-head (5), pulling force sensor (6), position encoder and PLC controller; Windlass equipment (2) and hoisting track (3) are set on described steel structure support (1), hoisting trolley (4) is set on hoisting track (3), stirring-head (5) is set on hoisting trolley (4), the hoisting rope of windlass equipment (2) is connected with hoisting trolley (4), pulling force sensor (6) is set on hoisting rope, on the speed reducer output shaft of windlass equipment (2), position encoder is set, pulling force sensor (6) is connected with PLC controller respectively by data line with position encoder.
2. a kind of KR method steel desulfurization molten steel liquid level detecting system according to claim 1, it is characterized in that: described stirring-head (5) comprises stirring-head body (51), agitator arm (52) and intake ducting (53), stirring-head body (51) inside offers cavity (54), agitator arm (52) one end is stretched in cavity (54) and is fixed, sheathed intake ducting (53) in agitator arm (52), leaves gap (55) between intake ducting (53) and agitator arm (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284430.6U CN203904390U (en) | 2014-05-29 | 2014-05-29 | KR (knotted reactor) process steel-making desulfurization molten steel liquid level detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284430.6U CN203904390U (en) | 2014-05-29 | 2014-05-29 | KR (knotted reactor) process steel-making desulfurization molten steel liquid level detection system |
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| Publication Number | Publication Date |
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| CN203904390U true CN203904390U (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420284430.6U Expired - Fee Related CN203904390U (en) | 2014-05-29 | 2014-05-29 | KR (knotted reactor) process steel-making desulfurization molten steel liquid level detection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103981334A (en) * | 2014-05-29 | 2014-08-13 | 江苏大峘集团有限公司 | KR (knotted reactor) method steel-making desulfurization molten steel liquid level detection system |
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2014
- 2014-05-29 CN CN201420284430.6U patent/CN203904390U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103981334A (en) * | 2014-05-29 | 2014-08-13 | 江苏大峘集团有限公司 | KR (knotted reactor) method steel-making desulfurization molten steel liquid level detection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 211112 Tianyuan East Road, Jiangning District, Jiangsu, China, No. 368, No. Patentee after: Great Huan Group Co., Ltd Address before: 211112 Tianyuan East Road, Jiangning District, Jiangsu, China, No. 368, No. Patentee before: Jiangsu MounTop Group Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20210529 |
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| CF01 | Termination of patent right due to non-payment of annual fee |