CN103591058A - Emergency hydraulic system of center hydraulic transmission hydraulic lifting harrow thickener - Google Patents
Emergency hydraulic system of center hydraulic transmission hydraulic lifting harrow thickener Download PDFInfo
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- CN103591058A CN103591058A CN201310572238.7A CN201310572238A CN103591058A CN 103591058 A CN103591058 A CN 103591058A CN 201310572238 A CN201310572238 A CN 201310572238A CN 103591058 A CN103591058 A CN 103591058A
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Abstract
The invention discloses an emergency hydraulic system of a center hydraulic transmission hydraulic lifting harrow thickener. The series problems caused by power failure of the thickener are solved. The emergency hydraulic system is characterized in that a hydraulic bottom plate block is arranged, a low pressure overflow valve, a high pressure safety valve, a reversing valve I, a throttling valve, a one-way valve II, a pressure reducing valve and a reversing valve II are arranged on the hydraulic bottom plate block, and a hydraulic motor, a one-way throttling valve, an oil cylinder, an electromagnetic ball valve II, an oil return oil filter, an energy accumulator inlet one-way valve, a hydraulic energy accumulator, a pressure detector, a nonelectric lifting harrow electromagnetic ball valve, a manual stop valve, a pressure gauge, a pressure sensor, a nonelectric lifting harrow ball valve connecting emergency power supply and the like are respectively connected through pipelines. According to the emergency hydraulic system of the center hydraulic transmission hydraulic lifting harrow thickener, high pressure oil is stored through the hydraulic energy accumulator, the high pressure oil is released during power failure, and nonelectric automatic harrow lifting is achieved. The emergency power sully is used, so that the nonelectric lifting harrow electromagnetic ball valve is in a normally-closed state and is opened when sudden power failure happens, the nonelectric lifting harrow electromagnetic ball valve is opened by the emergency power supply, the high pressure oil is made to automatically enter an oil cylinder lifting harrow, and the facts that materials press the harrow and a pool is cleared are avoided.
Description
Technical field
The present invention relates to a kind of hydraulic system of thickner, more precisely, is the hydraulic system that a kind of central liquid hydraulic transmission fluid is pressed rake-lifting concentrator.
Background technique
The moment of torsion of in use mud scraper rotation of thickner has a scope, when load increase, rotation torque are greater than setting value, need to carry rake, and therefore high-grade thickner is all provided with automatic rake-lifting device.Existing automatic rake-lifting system is to be all based upon on the basis of normal power supply, but user in use, and mains supply interrupts suddenly Shi， plant area without electricity, and the everything of equipment all stops, and puies forward rake system and also quits work simultaneously, and rake can not be mentioned extreme higher position.In outage, the gravitational settling in deckered stock chest does not stop, and at the bottom of being suspended in solid in pond and sinking to pond, is pressed on mud scraper, until while restoring electricity, a large amount of solids is piled up on mud scraper top, bears load too large, can not rotate, and is unable to lift yet.Now, need user to clear up deckered stock chest, the material being pressed on mud scraper is removed, could again start shooting, the workload in clear pond is huge, and waste resource pollution environment.
Summary of the invention
The object of the invention is to overcome the emergency hydraulic system that the deficiencies in the prior art provide a kind of central liquid hydraulic transmission fluid to press rake-lifting concentrator, can stored energy, when without electricity, discharge the energy of storage, mud scraper is mentioned to extreme higher position.
The invention is characterized in and comprise hydraulic oil container, oil temperature level meter, air filter, Oil pump electrical machinery group, pump discharge one-way valve I, hydraulic pressure base plate piece, pressure gauge, low pressure relief valve, high-pressure safety valve, pressure transducer, selector valve I, selector valve II, reduction valve, one-way valve II, throttle valve, pressure detector, hydraulic accumulator, accumulator import one-way valve, without electricity, put forward rake Solenoid ball valve I, hand stop valve, Solenoid ball valve II, one-way throttle valve, pipeline, oil cylinder, oil hydraulic motor, return oil filter, emergency power supply, on the casing of described hydraulic oil container, with oil temperature level meter, oil filler is equipped with air filter, and the filler opening of Oil pump electrical machinery group is connected with hydraulic oil container by pipeline, and oil outlet is connected on hydraulic pressure base plate piece by pipeline and pump discharge one-way valve, low pressure relief valve, high-pressure safety valve, selector valve I are one group, and throttle valve, one-way valve II, reduction valve, selector valve II are one group, are superimposed upon respectively on hydraulic pressure base plate piece, hydraulic pressure base plate piece is distinguished connecting fluid pressure motor, one-way throttle valve, oil cylinder, Solenoid ball valve II and return oil filter by pipeline, and return oil filter is contained on hydraulic oil container, on hydraulic pressure base plate piece, also connect accumulator import one-way valve, hydraulic accumulator, pressure detector, without electricity, carry rake Solenoid ball valve I, hand stop valve, without electricity, put forward rake Solenoid ball valve I and connect emergency power supply, pressure gauge, pressure transducer are also connected on hydraulic pressure base plate piece by pipeline.
Working principle: while having electricity operation, the action of selector valve I, the Oil pump electrical machinery group of system is squeezed into high pressure oil energy storage in hydraulic accumulator, the accumulator import one-way valve of hydraulic accumulator stops high-pressure oil flow to reflux, pressure detector detects the oil pressure in hydraulic accumulator, when oil pressure reaches setting value, the action of selector valve I stops, system normal operation.The power supply of carrying rake Solenoid ball valve without electricity is provided by emergency power supply, and while normally carrying rake, power supply system is charged to emergency power supply; When unexpected power failure, emergency power supply work, opens without electricity and carries rake Solenoid ball valve, and the high pressure oil storing in hydraulic accumulator enters the rod chamber of oil cylinder by hydraulic pipe line, promotes cylinder piston rod and rises, and mentions mud scraper to extreme higher position.
As shown from the above technical solution, the present invention adopts hydraulic accumulator to store high pressure oil, during power failure, discharges, and realizes without electric automatic rake-lifting; Adopt pressure detector to detect the pressure of hydraulic accumulator, guarantee the pressure stability in hydraulic accumulator, selector valve action in time; Adopt emergency power supply, make to carry rake Solenoid ball valve in normally off without electricity, do not need charged for a long time, the reliability that has increased this ball valve, has extended working life, when power failure suddenly need to be opened, by emergency power supply, open without electricity and carry rake Solenoid ball valve, make high pressure oil automatically enter oil cylinder and carry rake; Automatic rake-lifting after power failure has avoided material to press rake, clear pond, for user has solved a great problem.
Accompanying drawing explanation
Accompanying drawing is structural representation of the present invention.
In figure, 1. hydraulic oil container, 2. oil temperature level meter, 3. air filter, 4. Oil pump electrical machinery group, 5. pump discharge one-way valve I, 6. hydraulic pressure base plate piece, 7. pressure gauge, 8. low pressure relief valve, 9. high-pressure safety valve, 10. pressure transducer, 11. selector valve I, 12. selector valve II, 13. reduction valve, 14. one-way valve II, 15. throttle valve, 16. pressure detectors, 17. hydraulic accumulators, 18. accumulator import one-way valves, 19. put forward rake Solenoid ball valve I without electricity, 20. hand stop valves, 21. Solenoid ball valve II, 22. one-way throttle valves, 23. pipelines, 24. oil cylinders, 25. oil hydraulic motors, 26. return oil filters, 27. emergency power supplies.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As shown in drawings, the present invention includes hydraulic oil container 1, oil temperature level meter 2, air filter 3, Oil pump electrical machinery group 4, pump discharge one-way valve I 5, hydraulic pressure base plate piece 6, pressure gauge 7, low pressure relief valve 8, high-pressure safety valve 9, pressure transducer 10, selector valve I 11, selector valve II 12, reduction valve 13, one-way valve II 14, throttle valve 15, pressure detector 16, hydraulic accumulator 17, accumulator import one-way valve 18, without electricity, put forward rake Solenoid ball valve I 19, hand stop valve 20, Solenoid ball valve II 21, one-way throttle valve 22, pipeline 23, oil cylinder 24, oil hydraulic motor 25, return oil filter 26, emergency power supply 27 etc.
On hydraulic oil container 1 body of storage liquid force feed with oil temperature level meter 2, oil filler is equipped with air filter 3, the filler opening of Oil pump electrical machinery group 4 is connected with hydraulic oil container 1 by pipeline 23, oil outlet is connected on hydraulic pressure base plate piece 6 by pipeline 23 and pump discharge one-way valve I 5, low pressure relief valve 8, high-pressure safety valve 9, selector valve I 11 are one group, throttle valve 15, one-way valve II 14, reduction valve 13, selector valve II 12 are one group, are superimposed upon respectively on hydraulic pressure base plate piece 6.Hydraulic pressure base plate piece 6 is through pipeline difference connecting fluid pressure motor 25, one-way throttle valve 22, oil cylinder 24, Solenoid ball valve II 21 and return oil filter 26, return oil filter 26 is contained on hydraulic oil container 1, on hydraulic pressure base plate piece 6, also connect accumulator import one-way valve 18, hydraulic accumulator 17, pressure detector 16, without electricity, carry rake Solenoid ball valve I 19, hand stop valve 20, the power supply of putting forward rake Solenoid ball valve I 19 without electricity is provided by emergency power supply 27; Pressure gauge 7, pressure transducer 10 are also connected on hydraulic pressure base plate piece 6 by pipeline 23.
The effect of above-mentioned each parts is: hydraulic oil container 1 storage liquid force feed, and oil temperature level meter 2 sign oil level and oil temperatures, air filter 3 is filtered when refueling, and stops impurity to enter in hydraulic oil container 1.Oil pump electrical machinery group 4 feeds hydraulic pressure base plate piece 6 the hydraulic oil in hydraulic oil container 1.Pump discharge one-way valve I 5 stops pump discharge oil to reflux.Hydraulic pressure base plate piece 6 is oil dispenser, by the commutation of selector valve I 11, selector valve II 12, respectively to oil hydraulic motor 25, oil cylinder 24 fuel feeding.Pressure gauge 7 testing pump outlet pressures, low pressure relief valve 8 are controlled the maximum pressure of oil hydraulic motor 25, high-pressure safety valve 9 is controlled hydraulic system maximum pressure, the online working pressure that detects oil hydraulic motor 25 of pressure transducer 10, selector valve I 11, selector valve II 12 change oily flow path direction.Reduction valve 13 is adjusted the input pressure of oil cylinder 24 rodless cavities.The oil of one-way valve II 14 entry deterrence oil cylinder 24 rod chambers flows back to stream.Throttle valve 15 regulates the speed oil that enters oil cylinder 24.Pressure detector 16 detects the reservoir pressure in hydraulic accumulator 17 in real time.When storing high pressure oil for nothing electricity, hydraulic accumulator 17 carries rake.Accumulator import one-way valve 18 stops the high pressure oil in hydraulic accumulator 17 to reflux.Without electricity, carrying rake Solenoid ball valve 19 is normally off, when carrying rake without electricity, with emergency power supply 27, opens, and the rod chamber that makes high pressure oil in hydraulic accumulator 17 enter oil cylinder 24 is carried rake.Hand stop valve 20, for maintenance, cuts out during maintenance, stops the high pressure oil in hydraulic accumulator 17 to enter oil cylinder 24.Solenoid ball valve II 21, for falling rake, is opened while falling rake.One-way throttle valve 22 is adjusted the oil return speed of cylinder rod chamber, adjusts the rake speed of falling.Pipeline 23 is for connecting Oil pump electrical machinery group 4, oil cylinder 24, oil hydraulic motor 25, return oil filter 26 etc.26 pairs of hydraulic system oil returns of return oil filter are filtered, and stop impurity to enter hydraulic oil casing 1.
During normal operation, the 4 energising operations of Oil pump electrical machinery group, oil enters hydraulic pressure base plate piece 6 through the pump discharge one-way valve 5 of Oil pump electrical machinery group 4,11 actions of selector valve I, oil directly enters hydraulic accumulator 17 through hydraulic pressure base plate piece 6, owing to having compressible gas in hydraulic accumulator 17, oil enters rear pressurized gas, and oil pressure raises.The accumulator import one-way valve 18 of hydraulic accumulator 17 stops oil to flow back to stream.In Oil pump electrical machinery group 4 to hydraulic accumulator 17 in interior fuel feeding process, pressure in hydraulic accumulator 17 constantly raises, the online oil pressure detecting in hydraulic accumulator 17 of pressure detector 16, when oil pressure reaches setting value, control system makes selector valve I 11 stop action, get back to initial position, stop to hydraulic accumulator 17 fuel feeding, energy storage completes.Oil enters oil hydraulic motor 25 through high-pressure safety valve 9, selector valve I 11, low pressure relief valve 8, drives mud scraper rotation.High-pressure safety valve 9 is controlled hydraulic system maximum pressure, and low pressure relief valve 8 is controlled the maximum service pressure of oil hydraulic motor 25.When mud scraper load increases, when the oil pressure of driving oil hydraulic motor 25 increases, selector valve I 11, selector valve II 12 are moved simultaneously, oil changes the flow direction, oil hydraulic motor 25 quits work, and hydraulic oil enters oil cylinder 24 rod chambers through throttle valve 15, reduction valve 13, selector valve II 12, one-way valve II 14 and carries rake, need to stop carrying rake, selector valve I 11,12 actions of selector valve II stop, oil hydraulic motor 25 work.Throttle valve 15 regulates oil-feed speed, and one-way valve II 14 stops oil to reflux; In the time of need to falling rake, selector valve II 12,21 actions of Solenoid ball valve II, hydraulic oil enters oil cylinder 24 rodless cavities, falls rake, falls rake and stops, and selector valve II 12, Solenoid ball valve II 21 stop action.While having electricity, power supply system is to emergency power supply 27 chargings; When unexpected power failure, emergency power supply 7 work, open without electricity and put forward rake Solenoid ball valve I 19, and the high pressure oil of hydraulic accumulator 17 interior storages enters oil cylinder 24 rod chambers by hydraulic pipe line 23, promotes oil cylinder 24 piston rods and rises, and mentions mud scraper to extreme higher position.
Claims (1)
1. a central liquid hydraulic transmission fluid is pressed the emergency hydraulic system of rake-lifting concentrator, be characterised in that: comprise hydraulic oil container (1), oil temperature level meter (2), air filter (3), Oil pump electrical machinery group (4), pump discharge one-way valve I (5), hydraulic pressure base plate piece (6), pressure gauge (7), low pressure relief valve (8), high-pressure safety valve (9), pressure transducer (10), selector valve I (11), selector valve II (12), reduction valve (13), one-way valve II (14), throttle valve (15), pressure detector (16), hydraulic accumulator (17), accumulator import one-way valve (18), without electricity, put forward rake Solenoid ball valve I (19), hand stop valve (20), Solenoid ball valve II (21), one-way throttle valve (22), pipeline (23), oil cylinder (24), oil hydraulic motor (25), return oil filter (16), emergency power supply (27), on the casing of described hydraulic oil container (1) with oil temperature level meter (2), oil filler is equipped with air filter (3), the filler opening of Oil pump electrical machinery group (4) is connected with hydraulic oil container (1) by pipeline, and oil outlet is connected on hydraulic pressure base plate piece (6) by pipeline and pump discharge one-way valve (5), low pressure relief valve (8), high-pressure safety valve (9), selector valve I (11) are one group, throttle valve (15), one-way valve II (14), reduction valve (13), selector valve II (12) are one group, are superimposed upon respectively on hydraulic pressure base plate piece (6), hydraulic pressure base plate piece (6) connects respectively Solenoid ball valve II (21), one-way throttle valve (22), oil cylinder (24), oil hydraulic motor (25) and return oil filter (26) by pipeline (23), and return oil filter (26) is contained on hydraulic oil container (1), on hydraulic pressure base plate piece (6), also connect accumulator import one-way valve (18), hydraulic accumulator (17), pressure detector (16), without electricity, carry rake Solenoid ball valve I (19), hand stop valve (20), without electricity, put forward rake Solenoid ball valve I (19) and connect emergency power supply (27), pressure gauge (7), pressure transducer (10) are also connected on hydraulic pressure base plate piece (6) by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310572238.7A CN103591058B (en) | 2013-11-15 | 2013-11-15 | A kind of emergency hydraulic system of central liquid hydraulic transmission fluid pressure rake-lifting concentrator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310572238.7A CN103591058B (en) | 2013-11-15 | 2013-11-15 | A kind of emergency hydraulic system of central liquid hydraulic transmission fluid pressure rake-lifting concentrator |
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| Publication Number | Publication Date |
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| CN103591058A true CN103591058A (en) | 2014-02-19 |
| CN103591058B CN103591058B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310572238.7A Expired - Fee Related CN103591058B (en) | 2013-11-15 | 2013-11-15 | A kind of emergency hydraulic system of central liquid hydraulic transmission fluid pressure rake-lifting concentrator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296381A (en) * | 2018-10-25 | 2019-02-01 | 中铁六局集团有限公司 | Shield machine belt scraper |
| CN112663569A (en) * | 2020-12-28 | 2021-04-16 | 安徽池州百川液压坝科技有限公司 | Unpowered unlocking device of hydraulic support locking mechanism |
| CN115141640A (en) * | 2021-03-28 | 2022-10-04 | 上海梅山钢铁股份有限公司 | Coke oven coal charging car protection system after power failure and control method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2605049Y (en) * | 2003-03-25 | 2004-03-03 | 淮北市中芬矿山机器有限公司 | Periphery driven thickener |
| CN2643999Y (en) * | 2003-08-30 | 2004-09-29 | 淮北市中芬矿山机器有限责任公司 | Center drive concentrator |
| US20050035064A1 (en) * | 2003-08-11 | 2005-02-17 | Gerald Seidl | Hydraulic or pneumatic drive system, method, and apparatus for a fluid screening system |
| CN201486957U (en) * | 2009-06-04 | 2010-05-26 | 淮北矿山机器制造有限公司 | Thickener hydraulic control system |
| CN201636093U (en) * | 2010-01-14 | 2010-11-17 | 上海华丰工业控制技术工程有限公司 | Hydraulic energy-storing emergency device and field movable boarding ladder using the same |
| CN102937118A (en) * | 2012-11-13 | 2013-02-20 | 淮北重科矿山机器有限公司 | Manual and automatic integration hydraulic lifting device of mud scraping rake |
| CN202900814U (en) * | 2012-11-13 | 2013-04-24 | 淮北重科矿山机器有限公司 | Mud scraping harrow hydraulic lifting device provided with manual operating device |
-
2013
- 2013-11-15 CN CN201310572238.7A patent/CN103591058B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2605049Y (en) * | 2003-03-25 | 2004-03-03 | 淮北市中芬矿山机器有限公司 | Periphery driven thickener |
| US20050035064A1 (en) * | 2003-08-11 | 2005-02-17 | Gerald Seidl | Hydraulic or pneumatic drive system, method, and apparatus for a fluid screening system |
| CN2643999Y (en) * | 2003-08-30 | 2004-09-29 | 淮北市中芬矿山机器有限责任公司 | Center drive concentrator |
| CN201486957U (en) * | 2009-06-04 | 2010-05-26 | 淮北矿山机器制造有限公司 | Thickener hydraulic control system |
| CN201636093U (en) * | 2010-01-14 | 2010-11-17 | 上海华丰工业控制技术工程有限公司 | Hydraulic energy-storing emergency device and field movable boarding ladder using the same |
| CN102937118A (en) * | 2012-11-13 | 2013-02-20 | 淮北重科矿山机器有限公司 | Manual and automatic integration hydraulic lifting device of mud scraping rake |
| CN202900814U (en) * | 2012-11-13 | 2013-04-24 | 淮北重科矿山机器有限公司 | Mud scraping harrow hydraulic lifting device provided with manual operating device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296381A (en) * | 2018-10-25 | 2019-02-01 | 中铁六局集团有限公司 | Shield machine belt scraper |
| CN109296381B (en) * | 2018-10-25 | 2023-09-08 | 中铁六局集团有限公司 | Belt mud scraper of shield machine |
| CN112663569A (en) * | 2020-12-28 | 2021-04-16 | 安徽池州百川液压坝科技有限公司 | Unpowered unlocking device of hydraulic support locking mechanism |
| CN115141640A (en) * | 2021-03-28 | 2022-10-04 | 上海梅山钢铁股份有限公司 | Coke oven coal charging car protection system after power failure and control method thereof |
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| Publication number | Publication date |
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| CN103591058B (en) | 2016-01-20 |
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Granted publication date: 20160120 Termination date: 20171115 |