CN200939457Y - Controller of lab system of hot rolling steel plates tandem mill - Google Patents
Controller of lab system of hot rolling steel plates tandem mill Download PDFInfo
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- CN200939457Y CN200939457Y CN 200620044909 CN200620044909U CN200939457Y CN 200939457 Y CN200939457 Y CN 200939457Y CN 200620044909 CN200620044909 CN 200620044909 CN 200620044909 U CN200620044909 U CN 200620044909U CN 200939457 Y CN200939457 Y CN 200939457Y
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Abstract
The utility model relates to a control device of a lubrication system of a hot rolling mill, belonging to a metal rolling field, which comprises a lube supply unit, a water supply unit, a mixing unit of lube and water, and an ejecting unit. The utility model is characterized in that the device is provided with a central control module with a display module and a lube supply pump is used as a metering pump, and a first and a second remote press modules are arranged to the output ends of the lube supply unit and the water supply unit respectively, an electronic-controlled commutating module is arranged between the pump in the lube supply unit and the mixing unit of lube and water, a remote press display, an electronic-controlled flux adjustment module, a remote flux display and an electromagnetic on-off control module are arranged to the output end of the water supply unit, and a third remote press display is arranged to the ejecting unit. The output ends or control ends of all displays or modules are correspondingly connected with the I/O of the central control module. The utility model makes the current lubrication system timely adjust proportion of lube and water in the lubricating liquid ejected in line with the practical technical requirements.
Description
Technical field
The utility model belongs to the rolling device field of metal, relates in particular to a kind of control device that is used for the hot-rolled steel plate machinery lubrication system.
Background technology
In steel rolling mill, make raw material with continuous casting steel billet or plate slab, after heating furnace heating, after sending into tandem mill and carrying out rolling of continuous multiple tracks roll, can roll into light sheet (also claiming hair straightening plate); After crop, back-end crop were handled, cutting plate or rewinding promptly became hot rolled steel plate (volume) product again with hair straightening plate; As it being cut edge again and after the aligning of multi-pass, finishing line such as smooth handled, cutting plate or rewinding can make products such as hot rolled steel plate, smooth coils of hot-rolled steel, rip cutting band again; Hot rolling finishing volume if after pickling scale removal and oiling the hot rolling acid-cleaning coiled sheet, this product has the local trend that substitutes cold-reduced sheet, moderate cost is liked by users deeply.
The tandem rolling unit of hot rolled steel plate generally is made up of seven groups of rolls.Be heated to the steel billet about 1000 ℃, the continuous roller system through seven groups of rolls can become finished product sheet material.
In rolling process, in order to reduce the friction between roll and the stocking, reduce roll-force and power consumption, make stocking be easy to extend, the controlled rolling temperature improves the rolled products quality, must between roll and stocking contact-making surface, add metalworking coolant, between high temperature rolled piece and roll roll surface, forming lubricating oil film, reduce roll surface wear and improve the surface quality of rolled piece by lubricating oil film, it is lubricated that this process just is called steel rolling process.
The output, the reduction that improve the hot-strip unit consume, boost productivity, and this is very important thing in the steel rolling process; Various countries' practice is verified, uses hot-rolling oil can carry out steel rolling process and lubricates, and can significantly reduce the wearing and tearing of roll, reduces power consumption, improves plate surface quality, boosts productivity.
The day for announcing is on September 2nd, 1998, notification number is to disclose a kind of " the technological lubrication method of roll for hot-rolling " in the Chinese patent of CN 1039631C, disclosed control system in the embodiment is (referring to its specification the 2nd, 3,4 pages and accompanying drawing) take following working method: before roll, rear side all is provided with hot metal detector (25), (26), draught pressure sensor (36) is set on roll (35), magnetic valve (17)～(24) are set on nozzle, have only when the hot metal detector and the pressure sensor of milling train entrance side all send " putting in place " signal (during roll work), just open this magnetic valve, oil-water mixture is directly injected on the roll roll surface, otherwise by the road and needle valve (27), (29) oil-water mixture is sent back in the fuel tank.
There is following problems in this control system:
(1) belong to old-fashioned relay interlocked control in the control, relatively backward, and fail to utilize the associated control signal of rolling mill, and hot metal detector and pressure sensor need be set separately, fault rate is higher;
(2) poor expandability of system can only be applicable to the process lubrication system of whole oil spouts to be not suitable for present profit mixing and emulsifying injection of lubrication liquid system;
(3) do not have flow-control, detection and demonstration, can not regulate, show, write down the working condition of whole process lubrication system dynamically, be unfavorable for operation and adjusting process operational factor;
(4) all signals can only use on the spot, can't teletransmission and centralized Control, and the needs of the control of the rolling mill that the incompatibility automaticity improves day by day.
The utility model content
Technical problem to be solved in the utility model provides a kind of control device of hot rolled steel plate tandem mill lubricating system, it can in time be regulated the oil in the lubricating fluid that is sprayed, water ratio according to arts demand, can react, show, write down the working condition of whole process lubrication system dynamically, can make full use of the existing associated control signal of rolling mill, the extensibility of system is good, collection control degree height, working stability is reliable.
The technical solution of the utility model is: the control device that a kind of hot rolled steel plate tandem mill lubricating system is provided, comprise oil supply unit, water supply unit, profit mixed cell and injection unit, its described oil supply unit, water supply unit respectively with the corresponding connection of two inputs of profit mixed cell, the profit mixed cell is connected with injection unit, it is characterized in that: a central control module that has a display module is set; Oil feed pump in the described oil supply unit is a measuring pump; At the oil supply unit delivery side of pump first pressure detecting/remote-transmission module is set; Between oil supply unit pump and profit mixed cell, the electric control reversing module is set; At water supply unit delivery side of pump second pressure detecting/remote-transmission module, automatically controlled Flow-rate adjustment module, flow detection/remote-transmission module and electromagnetism on/off control module are set; At injection unit the 3rd pressure detecting/remote-transmission module is set; Signal output part of above-mentioned each module or control end respectively with the corresponding connection of I/O port of central control module.
Further, the control end of its measuring pump is connected with the frequency control module, the corresponding connection of I/O port of the control end of frequency-variable module and central control module; The I/O port of its central control module is connected with the alarm signal input with " stinging steel " signal output part, " throwing steel " signal output part in the control system of continuous rolling mill.
Concrete, its display module is the touch-screen type display; Its central control module is PLC industrial computer, embedded PC, DSP digital signal processor circuit, SCM single chip microcontroller circuit, MCU microcontroller circuit, PLD programmable logic device circuit or single chip circuit; Its electric control reversing module is electrodynamic type or electromagnetic type reversal valve; Its automatically controlled Flow-rate adjustment module is an electric control valve; Its electromagnetism on/off control module is a magnetic valve; Its first, second or the 3rd pressure detecting/remote-transmission module be electro connecting pressure gauge, pressure transmitter or differential pressure transmitter; Its flow detection/remote-transmission module is spinner flowmeter, differential pressure flowmeter, turbine flowmeter or electromagnetic flowmeter.
Compared with the prior art, the utility model has the advantages that:
1. the electric control reversing module is set and the Flow-rate adjustment module is set at the oil supply unit output, make it in time to regulate the oil in the lubricating fluid that is sprayed, water ratio, avoid the frequent starting of oil pump according to arts demand at water supply unit output;
2. adopt measuring pump as oil feed pump, can accurately control the oil content in the lubricating fluid;
3. by each pressure detecting/remote-transmission module and flow detection/remote-transmission module, energy is the working condition of reaction and display, the whole process lubrication system of record dynamically;
4. only introduce existing two associated control signals of rolling mill, made the correlation degree of itself and the existing control system of rolling mill reduce to minimum.
Description of drawings
Fig. 1 is the annexation schematic diagram of the utility model control device and process equipment;
Fig. 2 is a circuit structure block diagram of the present utility model.
1 is oil feed pump among the figure, 2 is supply-water pump, 3 is oil-water mixer, and 4-1,4-2 are nozzle, and 5 is first pressure detecting/remote-transmission module, 6 is solenoid directional control valve, 7 is second pressure detecting/remote-transmission module, and 8 is electric-controlled ball valve, and 9 is the electrical distance transmitting flowmeter, 10 is magnetic valve, and 11-1,11-2 are the 3rd pressure detecting/remote-transmission module.
The specific embodiment
Among Fig. 1, the mechanical part of the utility model comprises oil supply unit, water supply unit, profit mixed cell and injection unit, the output of the oil feed pump 1 of its oil supply unit, the supply-water pump 2 of water supply unit respectively with the corresponding connection of two inputs of the static oil-water mixer 3 of profit mixed cell, the output of static oil-water mixer is connected with nozzle 4-1, the 4-2 of injection unit.
In the control scheme of the technical program, first pressure detecting/remote-transmission module 5 is set at the output of oil feed pump 1; Between oil feed pump and static oil-water mixer 3, solenoid directional control valve 6 is set; Output at supply-water pump 2 is provided with second pressure detecting/remote-transmission module 7, electric-controlled ball valve 8, electrical distance transmitting flowmeter 9 and magnetic valve 10; Respectively organize at injection unit on the pipeline of nozzle 4-1,4-2 the 3rd pressure detecting/remote-transmission module 11-1,11-2 is set respectively.
Among Fig. 2, the technical program is provided with a central control module that has a display module; Oil feed pump in its oil supply unit adopts measuring pump; At the oil supply unit delivery side of pump first pressure detecting/remote-transmission module is set; Between oil supply unit pump and profit mixed cell, the electric control reversing module is set; At water supply unit delivery side of pump second pressure detecting/remote-transmission module, automatically controlled Flow-rate adjustment module, flow detection/remote-transmission module and electromagnetism on/off control module are set; At injection unit the 3rd pressure detecting/remote-transmission module is set; Signal output part of above-mentioned each module or control end respectively with the corresponding connection of I/O port of central control module.
Further, the control end of its measuring pump is connected with the frequency control module, the corresponding connection of I/O port of the control end of frequency-variable module and central control module; The I/O port of its central control module is connected with the alarm signal input with " stinging steel " signal output part, " throwing steel " signal output part in the control system of continuous rolling mill.
Concrete, its display module is the touch-screen type display; Its central control module is PLC industrial computer, embedded PC, DSP digital signal processor circuit, SCM single chip microcontroller circuit, MCU microcontroller circuit, PLD programmable logic device circuit or single chip circuit; Its electric control reversing module is electrodynamic type or electromagnetic type reversal valve; Its automatically controlled Flow-rate adjustment module is an electric control valve; Its electromagnetism on/off control module is a magnetic valve; Its first, second or the 3rd pressure detecting/remote-transmission module be electro connecting pressure gauge, pressure transmitter or differential pressure transmitter; Its flow detection/remote-transmission module is spinner flowmeter, differential pressure flowmeter, turbine flowmeter or electromagnetic flowmeter.
Above-mentioned each circuit or device are prior art, and its concrete operation principle, circuit and annexation are no longer narrated at this.
On the connecting line of the output pipe of oil feed pump, supply-water pump and nozzle, install pressure transmitter additional, but flowmeter in water supply delivery side of pump setting electrical distance transmitting data signal, the operational factor teletransmission of each key point to the central control module that is arranged in the operation control room, then can in time be grasped the working condition of each point in the control room; Simultaneously, whether these data are judged normally, are compared foundation as whole device work by the PLC industrial computer of central control module again, also can store service data for future reference or the generating run curve.
At the water supply delivery side of pump electric control valve (for example, electrical ball valve) is set, in order to control its water yield.
The summary of the utility model course of work:
The oil that comes out from fuel tank is admitted to the gear type measuring pump; This pump whenever turns around.Can export the liquid of prescribed volume accurately,, can accurately control the flow of oil, and then reach the purpose that oil, water mixed proportion can be regulated easily according to arts demand by controlling the measuring pump rotating speed of motor accurately; Simultaneously, utilize measuring pump again the oil of its output to be pressurizeed, so that emulsification.
Enter the P end of reversal valve from the oil of measuring pump output, do not arrive as " stinging steel " (being exactly the signal that steel steel plate after the heating begins to enter roll) signal, then oily the end into T from P brings out, and gets back to fuel tank through oil return pipe again.
When device is received " stinging steel " signal of rolling mill, solenoid directional control valve 6 actions, its P end is logical with the A termination, and the oil after the pressurization is admitted to the oily input of static mixer 3; Magnetic valve 10 is opened simultaneously, also be admitted to the water input of oil-water mixer 3 through the water of pressurization, the oil of high pressure becomes to mix in blender with the water of low pressure spares equal emulsion, export from the emulsion output of blender at last, arrive device context through piping, be divided into two-way through threeway, enter/following collector pipe through one section metal hose respectively then, by each group jet blower, be injected in uniformly on the bottom roll above the upper and lower water discharging board of topping roll below the water discharging board, thus the lubrication of playing.
" throwing steel " signal (being the signal that steel plate leaves roll) one arrives, and then solenoid directional control valve 6 restores to the original state, and oil is still got back to fuel tank through the T end, and simultaneously, magnetic valve 10 cuts out, and the water route also is cut off, and stops to spray.
Above-mentioned " stinging steel " and " throwing steel " signal offer native system by the control system of rolling mill.Native system provides various alarm switch signals to the rolling mill control system, in order to interlock control.
Native system does not add the control system of original rolling mill, even native system goes out catastrophe failure, does not influence the normal operation of the original control system of rolling system yet.
Native system is with all actions of PLC control, with 15 " touch panel image shows the whole system operation situation intuitively, except that water pump and oil feed pump scene have button can the scene, all operations all can carry out on touch-screen, total system is an Automatic Control.
Because the modular construction and the expandability characteristics of PLC control device, the technical program can be carried out the expansion of corresponding module according to the needs of field apparatus, and the extensibility of system is good, collection control degree height, and working stability is reliable.
By adopting technique scheme, make existing process lubrication system in time to regulate the oil in the lubricating fluid that is sprayed, water ratio according to the needs of actual production technology, reached the purpose of invention.
Actual design and when installing and using, in order to adapt to the uninterrupted needs of producing of rolling mill serialization, oil feed pump 1 in its oil supply unit and the supply-water pump 2 in the water supply unit all can adopt the unit form of two-shipper parallel connection, the using and the reserved, with the fuel feeding/pressure of supply water of assurance device.Because the unit form of two-shipper parallel connection, the using and the reserved is a prior art, the physical relationship of its equipment and pipeline are arranged on this and no longer narrate.
The utility model can be widely used in the technological transformation field to existing rolling mill.
Claims (10)
1. the control device of a hot rolled steel plate tandem mill lubricating system, comprise oil supply unit, water supply unit, profit mixed cell and injection unit, its described oil supply unit, water supply unit respectively with the corresponding connection of two inputs of profit mixed cell, the profit mixed cell is connected with injection unit, it is characterized in that:
One central control module that has a display module is set;
Oil feed pump in the described oil supply unit is a measuring pump;
At the oil supply unit delivery side of pump first pressure detecting/remote-transmission module is set;
Between oil supply unit pump and profit mixed cell, the electric control reversing module is set;
At water supply unit delivery side of pump second pressure detecting/remote-transmission module, automatically controlled Flow-rate adjustment module, flow detection/remote-transmission module and electromagnetism on/off control module are set;
At injection unit the 3rd pressure detecting/remote-transmission module is set;
Signal output part of above-mentioned each module or control end respectively with the corresponding connection of I/O port of central control module.
2. according to the control device of the described hot rolled steel plate tandem mill lubricating system of claim 1, it is characterized in that the control end of described measuring pump is connected with the frequency control module, the corresponding connection of I/O port of the control end of frequency-variable module and central control module.
3. according to the control device of the described hot rolled steel plate tandem mill lubricating system of claim 1, it is characterized in that the I/O port of described central control module is connected with the alarm signal input with " stinging steel " signal output part, " throwing steel " signal output part in the control system of continuous rolling mill.
4. according to the control device of the described hot rolled steel plate tandem mill lubricating system of claim 1, it is characterized in that described display module is the touch-screen type display.
5. according to the control device of the described hot rolled steel plate tandem mill lubricating system of claim 1, it is characterized in that described central control module is PLC industrial computer, embedded PC, DSP digital signal processor circuit, SCM single chip microcontroller circuit, MCU microcontroller circuit, PLD programmable logic device circuit or single chip circuit.
6. according to the control device of the described hot rolled steel plate tandem mill lubricating system of claim 1, it is characterized in that described electric control reversing module is electrodynamic type or electromagnetic type reversal valve.
7. according to the control device of the described hot rolled steel plate tandem mill lubricating system of claim 1, it is characterized in that described automatically controlled Flow-rate adjustment module is an electric control valve.
8. according to the control device of the described hot rolled steel plate tandem mill lubricating system of claim 1, it is characterized in that described electromagnetism on/off control module is a magnetic valve.
9. according to the control device of the described hot rolled steel plate tandem mill lubricating system of claim 1, it is characterized in that described first, second or the 3rd pressure detecting/remote-transmission module are electro connecting pressure gauge, pressure transmitter or differential pressure transmitter.
10. according to the control device of the described hot rolled steel plate tandem mill lubricating system of claim 1, it is characterized in that described flow detection/remote-transmission module is spinner flowmeter, differential pressure flowmeter, turbine flowmeter or electromagnetic flowmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044909 CN200939457Y (en) | 2006-08-18 | 2006-08-18 | Controller of lab system of hot rolling steel plates tandem mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044909 CN200939457Y (en) | 2006-08-18 | 2006-08-18 | Controller of lab system of hot rolling steel plates tandem mill |
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| Publication Number | Publication Date |
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| CN200939457Y true CN200939457Y (en) | 2007-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200620044909 Expired - Fee Related CN200939457Y (en) | 2006-08-18 | 2006-08-18 | Controller of lab system of hot rolling steel plates tandem mill |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814339A (en) * | 2012-08-30 | 2012-12-12 | 镇江市宏业科技有限公司 | Rolling oil controlling system |
| CN104384205A (en) * | 2014-12-04 | 2015-03-04 | 镇江市宏业科技有限公司 | Process oil pressure control system of rolling mill |
| CN110201568A (en) * | 2019-06-05 | 2019-09-06 | 燕山大学 | A kind of emulsion on-line mixing device and its part selection method |
| CN110394364A (en) * | 2019-06-12 | 2019-11-01 | 佛山职业技术学院 | A kind of production method of thin gauge technical pure titanium plate |
| CN112501478A (en) * | 2020-11-09 | 2021-03-16 | 镇江龙源铝业有限公司 | Heat dissipation device aluminum alloy plate for 5G base station and preparation method thereof |
| CN114178320A (en) * | 2021-12-14 | 2022-03-15 | 宁波宝新不锈钢有限公司 | Stainless steel rolling oil injection control system and energy-saving method using same |
-
2006
- 2006-08-18 CN CN 200620044909 patent/CN200939457Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814339A (en) * | 2012-08-30 | 2012-12-12 | 镇江市宏业科技有限公司 | Rolling oil controlling system |
| CN104384205A (en) * | 2014-12-04 | 2015-03-04 | 镇江市宏业科技有限公司 | Process oil pressure control system of rolling mill |
| CN110201568A (en) * | 2019-06-05 | 2019-09-06 | 燕山大学 | A kind of emulsion on-line mixing device and its part selection method |
| CN110201568B (en) * | 2019-06-05 | 2020-06-19 | 燕山大学 | Emulsion online mixing device and part model selection method thereof |
| CN110394364A (en) * | 2019-06-12 | 2019-11-01 | 佛山职业技术学院 | A kind of production method of thin gauge technical pure titanium plate |
| CN112501478A (en) * | 2020-11-09 | 2021-03-16 | 镇江龙源铝业有限公司 | Heat dissipation device aluminum alloy plate for 5G base station and preparation method thereof |
| CN114178320A (en) * | 2021-12-14 | 2022-03-15 | 宁波宝新不锈钢有限公司 | Stainless steel rolling oil injection control system and energy-saving method using same |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070829 Termination date: 20090918 |