CN201592935U - High-reliability blast furnace charging system - Google Patents
High-reliability blast furnace charging system Download PDFInfo
- Publication number
- CN201592935U CN201592935U CN2009203502305U CN200920350230U CN201592935U CN 201592935 U CN201592935 U CN 201592935U CN 2009203502305 U CN2009203502305 U CN 2009203502305U CN 200920350230 U CN200920350230 U CN 200920350230U CN 201592935 U CN201592935 U CN 201592935U
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- truck
- trolley
- blast furnace
- switch
- charging system
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- Expired - Fee Related
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Abstract
A high-reliability blast furnace charging system belongs to the technical field of conveying and aims to prevent a trolley from derailing. The technical scheme includes that the charging system is formed by a winch, a trolley, a skip bridge rail, a trolley automatic control system and a frequency conversion control system, and the charging system is characterized in that a proximity switch is disposed at positions, higher than a limit position of the trolley, on trolley auxiliary rails, and a normally closed contact of the proximity switch is connected in series into a control loop of a trolley motor contactor. After the proximity switch is disposed on the two auxiliary rails of the trolley, the proximity switch acts to power off a trolley motor and stop the trolley when he trolley exceeds the limit position. The high-reliability blast furnace charging system can prevent trolley derailing when an original trolley control system fails and causes the trolley to be out of control, thereby greatly increasing reliability of the blast furnace charging system.
Description
Technical field
The utility model relates to a kind of charging of blast furnace system that prevents that truck from sliding down, and belongs to the conveying technology field.
Background technology
Medium and small blast furnace master winch skip charging system is generally formed (referring to Fig. 1) by winch (comprising three-phase coiling electric motor, retarder, rope roll), truck, skew bridge track, truck automatic guidance and frequency-changing control system.During work, the winch steel rope drags two trucks and moves up and down along the skew bridge track, alternately is charging of blast furnace.Out of service and carry out batch turning for guaranteeing that truck rises to behind the shuffling position, existing feeding system is provided with tachometer generator on the winch rope roll, the signal that the truck autonomous cruise speed system sends according to tachometer generator judges whether truck arrives shuffling position and end position, after truck runs to shuffling position, master controller sends cutoff command to frequency converter, and frequency converter is out of service by its inner contacts of contactor control winch motor.At this moment, frequency converter still be in electricity condition, if truck does not stop after arriving shuffling position for some reason, after continuing to rise to end position, the truck autonomous cruise speed system will cut off whole frequency converter power supply, make winch motor outage parking.But after master controller sent cut-offing instruction, control system might can not be carried out corresponding actions because of fault, causes truck out of control, thereby caused the accident that slides down, and had a strong impact on normally carrying out of blast furnace production.Therefore, existing charging of blast furnace system exists major safety risks, is necessary to improve.
Summary of the invention
The high reliability charging of blast furnace system that the purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of truck can not slide down accident.
Problem described in the utility model realizes with following technical proposals:
A kind of high reliability charging of blast furnace system, form by winch, truck, skew bridge track, truck autonomous cruise speed system and frequency-changing control system, after the improvement, be higher than the truck extreme position and be provided with near switch on the secondary rail of truck, described normally closed contact near switch is serially connected with in the control loop of truck motor contactless switch.
Above-mentioned high reliability charging of blast furnace system is respectively arranged with damping rubber block on truck two secondary rails, described damping rubber block is positioned near the switch top.
Above-mentioned high reliability charging of blast furnace system describedly is provided with two near switch, is installed on respectively on the truck two secondary rails, is serially connected with in the control loop of truck motor contactless switch after two normally closed contacts near switch are connected in series.
The utility model has installed additional a pair of near switch and a pair of damping rubber block on truck two secondary rails, is connected near switch series in the control loop of truck motor contactless switch.The position in case truck oversteps the extreme limit will be moved near switch, makes the outage of truck motor, and truck is out of service, and simultaneously, damping rubber block also plays certain barrier effect to truck, guarantees that truck can in time stop.The utility model can break down in original truck control system, when causing truck out of control, avoids the slide down generation of accident of truck, has improved the reliability of going up high furnace charge system greatly.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the structural representation of charging of blast furnace system;
Fig. 2 is the scheme of installation on the skew bridge track near switch and damping rubber block;
Fig. 3 is that A is to view;
Fig. 4 is the electrical schematic diagram of truck motor control loop;
Fig. 5 is the electrical schematic diagram of truck motor main circuit.
Each label is among the figure: 1, truck; 2, damping rubber block; 3, skew bridge track; 4, steel rope; 5, pulley; 6, winch; 7, secondary rail; 8, pinch roller rail; 9, backbone; 10, truck front-wheel; 11 truck trailing wheels; K1, K2, near switch; K3, K4, circuit breaker; K5, the inner contacts of contactor of frequency converter; M, truck motor; SA, select switch; BP, frequency converter; JC1, JC2, contactless switch; The open contact of JC1-1, contactless switch JC1; The open contact of JC2-1, contactless switch JC2.
The specific embodiment
Referring to Fig. 1～Fig. 3, the skew bridge track is made of backbone 9, secondary rail 7 and pinch roller rail 8, and truck front-wheel 10 is on backbone 9, and truck trailing wheel 11 is on secondary rail 7, and between secondary rail 7 and pinch roller rail 8.Install a pair of damping rubber block 2 additional on the secondary rail 7 of truck, install additional near switch (distance of reaction 10mm adds rainproof cover near switch) at secondary trackside face (apart from rubber block 200mm, apart from secondary rail outer rim 10cm) simultaneously, truck is in normal discharge position among Fig. 2, Fig. 3.If master controller and frequency converter break down, truck 1 oversteps the extreme limit and continues to move ahead behind the position, when truck 1 near near K switch 1, K2 the time, normally closed contact near switch disconnects, the outage of control truck motor, thus truck is stopped, if it is also malfunctioning near K switch 1, K2, truck continues to move ahead, and the 2 pairs of trucks of damping rubber block that are fixed on the secondary rail 7 of truck play certain buffer action, prevents truck 1 violent bump furnace roof and slides down.
Referring to Fig. 4, Fig. 5, in the existing truck control system, the truck motor M is by open contact JC1-1, the JC2-1 control of frequency converter B P, circuit breaker K3, K4, contactless switch JC1, JC2, and the coil of contactless switch JC1, JC2 is by select switch SA, the inner contacts of contactor K5 control of frequency converter.The utility model is in the coil control circuit of contactless switch JC1, JC2; serial connection left and right sides truck is near K switch 1 and K2 (normally closed point); when truck master controller and frequency converter break down; when the truck position that exceeds the maximum out of control arrived near K switch 1 and K2 position, near K switch 1 and K2 action, its normally closed point was opened; make contactless switch JC1, JC2 coil losing electricity; contact JC1-1, JC2-1 open, and cut off motor power, play the effect of protection truck.
Claims (3)
1. high reliability charging of blast furnace system, form by winch (6), truck (1), skew bridge track (3), truck autonomous cruise speed system and frequency-changing control system, it is characterized in that, be higher than the truck extreme position and be provided with near switch on the secondary rail of truck (7), described normally closed contact near switch is serially connected with in the control loop of truck motor (M) contactless switch.
2. according to the described high reliability charging of blast furnace of claim 1 system, it is characterized in that, be respectively arranged with damping rubber block (2) on truck (1) two secondary rail (7), described damping rubber block (2) is positioned near the switch top.
3. according to claim 1 or 2 described high reliability charging of blast furnace systems, it is characterized in that, describedly be provided with two, be installed on respectively on truck (1) the two secondary rail (7), be serially connected with in the control loop of truck motor (M) contactless switch after two normally closed contacts near switch are connected in series near switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203502305U CN201592935U (en) | 2009-12-31 | 2009-12-31 | High-reliability blast furnace charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203502305U CN201592935U (en) | 2009-12-31 | 2009-12-31 | High-reliability blast furnace charging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201592935U true CN201592935U (en) | 2010-09-29 |
Family
ID=42775001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203502305U Expired - Fee Related CN201592935U (en) | 2009-12-31 | 2009-12-31 | High-reliability blast furnace charging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201592935U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102311031A (en) * | 2011-09-09 | 2012-01-11 | 黑龙江建龙钢铁有限公司 | Rope tightening device for skip car |
| CN103466413A (en) * | 2013-09-27 | 2013-12-25 | 中国二十二冶集团有限公司 | Method for installing and positioning head sheave at furnace top of blast furnace |
| CN106143517A (en) * | 2015-03-26 | 2016-11-23 | 宁波绿凯节能科技有限公司 | A kind of self-tipping type afterbody discharging feeding trolley |
| CN106185382A (en) * | 2016-08-22 | 2016-12-07 | 中冶华天南京工程技术有限公司 | Band is from the blast-furnace skip car of removable cover |
| CN106276498A (en) * | 2016-10-14 | 2017-01-04 | 枣庄学院 | Downstairs automatic conveying system on a kind of article |
| CN106829366A (en) * | 2017-01-25 | 2017-06-13 | 中国有色（沈阳）冶金机械有限公司 | A kind of skew bridge elevator feeding system |
| CN107860235A (en) * | 2017-12-13 | 2018-03-30 | 蓝婷 | A kind of reduction furnace for smelting metal magnesium furnace charge shove charge equipment |
| CN111017662A (en) * | 2019-12-27 | 2020-04-17 | 北京金自天正智能控制股份有限公司 | Blast furnace skip anti-top intelligent monitoring method |
-
2009
- 2009-12-31 CN CN2009203502305U patent/CN201592935U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102311031A (en) * | 2011-09-09 | 2012-01-11 | 黑龙江建龙钢铁有限公司 | Rope tightening device for skip car |
| CN103466413A (en) * | 2013-09-27 | 2013-12-25 | 中国二十二冶集团有限公司 | Method for installing and positioning head sheave at furnace top of blast furnace |
| CN103466413B (en) * | 2013-09-27 | 2015-07-15 | 中国二十二冶集团有限公司 | Method for installing and positioning head sheave at furnace top of blast furnace |
| CN106143517A (en) * | 2015-03-26 | 2016-11-23 | 宁波绿凯节能科技有限公司 | A kind of self-tipping type afterbody discharging feeding trolley |
| CN106185382A (en) * | 2016-08-22 | 2016-12-07 | 中冶华天南京工程技术有限公司 | Band is from the blast-furnace skip car of removable cover |
| CN106185382B (en) * | 2016-08-22 | 2018-09-04 | 中冶华天南京工程技术有限公司 | Blast-furnace skip car of the band from mobile lid |
| CN106276498A (en) * | 2016-10-14 | 2017-01-04 | 枣庄学院 | Downstairs automatic conveying system on a kind of article |
| CN106829366A (en) * | 2017-01-25 | 2017-06-13 | 中国有色（沈阳）冶金机械有限公司 | A kind of skew bridge elevator feeding system |
| CN107860235A (en) * | 2017-12-13 | 2018-03-30 | 蓝婷 | A kind of reduction furnace for smelting metal magnesium furnace charge shove charge equipment |
| CN111017662A (en) * | 2019-12-27 | 2020-04-17 | 北京金自天正智能控制股份有限公司 | Blast furnace skip anti-top intelligent monitoring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100929 Termination date: 20141231 |
|
| EXPY | Termination of patent right or utility model |