CN203159646U - Blast furnace sounding rod control system - Google Patents
Blast furnace sounding rod control system Download PDFInfo
- Publication number
- CN203159646U CN203159646U CN 201320160008 CN201320160008U CN203159646U CN 203159646 U CN203159646 U CN 203159646U CN 201320160008 CN201320160008 CN 201320160008 CN 201320160008 U CN201320160008 U CN 201320160008U CN 203159646 U CN203159646 U CN 203159646U
- Authority
- CN
- China
- Prior art keywords
- controller
- blast furnace
- plc controller
- plc
- sounding rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model discloses a blast furnace sounding rod control system, and belongs to the field of furnace top system control of a blast furnace. The control system comprises a PLC (programmable logic controller), a touch screen and a DC (direct current) controller, wherein the output end of the touch screen is connected with the first input end of the PLC, the first output end of the PLC is connected with the input end of the touch screen, the second output end of the PLC is connected with the input end of the DC controller, the first output end of the DC controller is connected with the second input end of the PLC, and a pulse signal is outputted to a motor driving circuit by the DC controller. The control system disclosed by the utility model has reliable performance, and is simple and convenient to debug; a phenomenon that a sounding rod can not fall down or reverse caused by the damping change of a sounding rod transmission system can be avoided; and meanwhile, the position of charge level can be judged accurately according to the speed change, and the speed of the sounding rod during falling down is greatly increased.
Description
Technical field
The utility model belongs to blast furnace furnace top system control field, particularly relates to a kind of blast furnace probing rod Controlling System.
Background technology
Stock rod is the charge level that detects high furnace interior ore and coke, understand charge level situation and the key equipment of judging the working of a furnace in the stove for the smelting operation personnel, the reliability service of stock rod is the prerequisite guarantee of blast furnace trouble-free operation, therefore very strict to the control of stock rod: the chi process of putting of stock rod must be steady, and stock rod is being surveyed and followed in the charge level process, chi can not occur down and bury the chi phenomenon, otherwise, gently then influence the stockline data, heavy then weight is burnt or chain blows, cause stock rod can't normally visit material.Traditional stock rod control mode is controlled lifting and the decline of weight according to motor and band-type brake, and band-type brake is opened when carrying chi, and motor just changes simultaneously; Band-type brake is opened when putting chi, and weight relies on gravity to be done freely to descend, rely on speed relay or encoder to judge the weight lowering speed, cut out band-type brake when speed is excessive, and then opens band-type brake and make weight continuation decline.This kind control mode is simple in structure, but too frequent fragile, weight hypervelocity, the weight problems such as charge level, weight easily come off of easily nuzzling that descend easily of its band-type brake action become the persistent ailment that influence blast furnace production.
Along with the maturation of AC frequency conversion vector control technology is used, blast furnace both domestic and external adopts the AC asynchronous motor transmission mostly, be the control mode of key control unit with the vector frequency converter, it is disconnected that this mode is easy to generate erroneous judgement at stock rod seizure charge level, had influence on the control effect of stock rod, and torque control method is put at stock rod and is had inborn deficiency aspect the stationarity of chi, easily causes stock rod driving fault.Simultaneously, traditional stock rod Controlling System can not arrive charge level when caving in, and tends to occur putting chi because of stock rod transmission system damping change or fall chi.
The utility model content
Because the above-mentioned defective of prior art, it is faster that technical problem to be solved in the utility model provides a kind of response speed, more stable blast furnace probing rod Controlling System.
For achieving the above object, the utility model provides a kind of blast furnace probing rod Controlling System, comprises the PLC controller, also comprises touch-screen and dc controller; The output terminal of described touch-screen connects the first input end of described PLC controller, second output terminal of described PLC controller connects the input terminus of described dc controller, the output terminal of described dc controller is connected with the motor-drive circuit of direct-current machine, and described dc controller output pulse signal is given described motor-drive circuit.This programme can show charge level information in real time, each operation phase moment size is all set by touch-screen, and it is very convenient to debug, and dc controller provides motor torque with the electric current loop mode of operation simultaneously, fast to the control of DC response speed, can well avoid down chi, phenomenon such as the chi that do not fall.
Further, also comprise absolute value encoder; The signal output part of described absolute value encoder connects second input terminus of described PLC controller.Described absolute value encoder outputs signal to described PLC controller, and the PLC controller adopts speed closed loop control accurately to catch charge level according to the signal that receives.
Further, first output terminal of described PLC controller connects the input terminus of described touch-screen.
Further, also comprise photodiode, the input terminus of described photodiode connects the 3rd output terminal of described PLC controller, in the stock rod control process, it is luminous that the PLC controller sends the conducting of signal control photodiode, in order to point out early warning to the different situations of stock rod.
The beneficial effects of the utility model are: the utility model dependable performance, the debugging simple and convenient; Because adopt the current loop control pattern, it is relatively large to put chi moment width, real time response speed is fast, can not occur can't putting chi and maybe can't falling chi because of what stock rod transmission system damping change caused; The utility model can accurately be judged the charge level position according to velocity variations simultaneously, can in time stop chi, thereby save the float meter link, has improved the chi speed of putting greatly; The utility model can also be pointed out early warning to the different situations of stock rod, can make operator get more information about the working condition of stock rod Controlling System.
Description of drawings
Fig. 1 is circuit theory synoptic diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, a kind of blast furnace probing rod Controlling System comprises PLC controller 1, touch-screen 2, dc controller 3, photodiode 6 and absolute value encoder 5; The output terminal of described touch-screen 2 connects the first input end of described PLC controller 1, and first output terminal of described PLC controller 1 connects the input terminus of described touch-screen 2.Second output terminal of described PLC controller 1 connects the input terminus of described dc controller 3, the output terminal of described dc controller 3 is connected with the motor-drive circuit of direct-current machine 4, described dc controller 3 output pulse signals are given described motor-drive circuit 4, the signal output part of described absolute value encoder 5 connects second input terminus of described PLC controller 1, first output terminal of described PLC controller 1 connects the input terminus of described touch-screen 2, and the input terminus of described photodiode 6 connects the 3rd output terminal of described PLC controller 1.
During use, set the output torque of different operation phase dc controllers 3 by touch-screen 2, PLC controller 1 receives and sends instruction behind the signal that touch-screen 2 sends and give dc controller 3, after dc controller 3 receives the steering order that PLC controller 1 sends to, send a signal to the motor-drive circuit of direct-current machine according to this steering order to drive the direct-current machine operation.Simultaneously, absolute value encoder 5 sends a signal to PLC controller 1, and PLC controller 1 carries out obtaining after the calculation process position and the speed of stock rod to the received signal.PLC controller 1 sends data to touch-screen 2, touch-screen 2 shows stock rod working condition and motor service data etc., can allow operator get more information about the working order of stock rod Controlling System, PLC controller 1 can also send signal conduction photodiode 6 simultaneously, makes it carry out early warning.
Direct-current machine is when carrying chi and putting chi, dc controller 3 all a provider to the moment that makes progress, different is when carrying chi, the moment that dc controller 3 provides is greater than visiting hammer gravity, so visit upwards operation of hammer, and when putting chi, the moment that dc controller 3 provides is less than visiting hammer gravity, so visit hammer operation downwards, and when arriving charge level, the moment that dc controller 3 provides equals to visit hammer gravity, and visit hammer and be suspended in charge level this moment, and it is descending to follow charge level, carry chi when arriving stockline, when carrying chi, moment is fixed value, then constantly adjustment moment size is with the control falling velocity putting chi, and dc controller 3 provides minimum moment so that motor accelerates rapidly when starting acceleration; When at the uniform velocity falling, dc controller 3 provides large, medium and small three kinds of moments to visit with control and hammers into shape at the uniform velocity to fall by setting speed; When stopping chi, visit and hammer sharply reduction of speed when dropping to charge level into shape, when weakening above certain limit, the speed that detects PLC controller 1 thinks that visiting hammer arrives charge level, need provide immediately and stop chi moment this moment, this moment not only can stop the spy hammer to continue to fall, and can also make the upright straight state of spy hammer answer that is in heeling condition because of inertia; With when material, dc controller 3 provides with material moment that to follow charge level descending so that visit hammer, because of minimum with material moment, expects or during abnormal conditions such as seat material so collapse, and stock rod also can arrive charge level rapidly and follow charge level descending.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all technician in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.
Claims (4)
1. a blast furnace probing rod Controlling System comprises PLC controller (1), it is characterized in that: also comprise touch-screen (2) and dc controller (3); The output terminal of described touch-screen (2) connects the first input end of described PLC controller (1), second output terminal of described PLC controller (1) connects the input terminus of described dc controller (3), the output terminal of described dc controller (3) is connected with the motor-drive circuit (4) of direct-current machine, and described dc controller (3) output pulse signal is given described motor-drive circuit (4).
2. blast furnace probing rod Controlling System as claimed in claim 1 is characterized in that: also comprise absolute value encoder (5); The signal output part of described absolute value encoder (5) connects second input terminus of described PLC controller (1).
3. blast furnace probing rod Controlling System as claimed in claim 1 or 2, it is characterized in that: first output terminal of described PLC controller (1) connects the input terminus of described touch-screen (2).
4. blast furnace probing rod Controlling System as claimed in claim 1 or 2, it is characterized in that: also comprise photodiode (6), the input terminus of described photodiode (6) connects the 3rd output terminal of described PLC controller (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320160008 CN203159646U (en) | 2013-04-02 | 2013-04-02 | Blast furnace sounding rod control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320160008 CN203159646U (en) | 2013-04-02 | 2013-04-02 | Blast furnace sounding rod control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203159646U true CN203159646U (en) | 2013-08-28 |
Family
ID=49020845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320160008 Expired - Fee Related CN203159646U (en) | 2013-04-02 | 2013-04-02 | Blast furnace sounding rod control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203159646U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182736A (en) * | 2015-08-14 | 2015-12-23 | 中冶华天南京电气工程技术有限公司 | Intelligent type master controller and height and speed detection apparatus |
-
2013
- 2013-04-02 CN CN 201320160008 patent/CN203159646U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182736A (en) * | 2015-08-14 | 2015-12-23 | 中冶华天南京电气工程技术有限公司 | Intelligent type master controller and height and speed detection apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201458200U (en) | Intelligent control and failure diagnosis expert system of garbage compressor | |
| CN202648457U (en) | Slag removing device for metal smelting | |
| CN102703629B (en) | System and method for controlling sounding rod of blast furnace | |
| CN203159646U (en) | Blast furnace sounding rod control system | |
| CN206693830U (en) | The power-assisted that tests the speed switchs the control system and vent cabinet of sliding door | |
| CN206773455U (en) | A kind of control system for tower shelf type oil pumping machine | |
| CN202584543U (en) | Simulating training device of multi-rope friction mine hoist | |
| CN207713206U (en) | Elevator remote debugging system | |
| CN201881387U (en) | Industrial robot collision protection device | |
| CN104460824B (en) | The control system of the display of engineering machinery, method, device and engineering machinery | |
| CN104391509B (en) | The control method and device of blast furnace probing rod | |
| CN202717787U (en) | Blast furnace gage rod control device | |
| CN206392235U (en) | Permanent magnetism ore deposit optional equipment supervising device | |
| CN103274203A (en) | Method for weighting and sorting and control system thereof | |
| CN210236894U (en) | Synchronous detection device of crown block double hoisting mechanism under different speeds | |
| CN219409782U (en) | Standby position detection system of blast furnace stock rod | |
| CN106315394B (en) | A kind of suspended chain automatic decoupling device | |
| CN102673976B (en) | Intelligent conveying system | |
| CN202231416U (en) | Electric window-opening device overload protection system | |
| CN208874273U (en) | A kind of vibration ore dumping machine emptying protection circuit | |
| CN204981923U (en) | Blast furnace gun volume of beating mud display device | |
| CN203997935U (en) | Apron conveyor off-axis monitoring system | |
| CN213950375U (en) | Tower machine becomes detection device of width of cloth running range | |
| CN203428855U (en) | Liquid crystal brake clearance monitoring terminal | |
| CN204631058U (en) | The speed measuring device of dragveyer |
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: 20130828 Termination date: 20160402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |