CN204665915U - A kind of batch layer thickness of sintering machine control system - Google Patents
A kind of batch layer thickness of sintering machine control system Download PDFInfo
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- CN204665915U CN204665915U CN201520165116.0U CN201520165116U CN204665915U CN 204665915 U CN204665915 U CN 204665915U CN 201520165116 U CN201520165116 U CN 201520165116U CN 204665915 U CN204665915 U CN 204665915U
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Abstract
The utility model relates to sintering deposit production technical field, specifically a kind of batch layer thickness of sintering machine control system, comprise thickness of feed layer controller, frequency conversion speed-adjusting system, homophony gatage control device, fine setting gatage control device and layer thickness detection apparatus, layer thickness detection apparatus comprises one group of Charge level measurer, each Charge level measurer arranges with fine setting gate one_to_one corresponding, control output end connection homophony gatage control device and the fine setting gatage control device of thickness of feed layer controller, the signal input part of the signal output part binder layer thickness controller of layer thickness detection apparatus, the signal output part connection frequency conversion speed-adjusting system of thickness of feed layer controller, the signal output part of frequency conversion speed-adjusting system is used for connecting round roller batcher. the utility model makes the accurate rate of thickness of feed layer control greatly improve, and is conducive to improve sinter quality, improves Sintering Yield and productivity ratio. solution thickness of feed layer control inaccuracy, easily generation burning and underburnt, the problem that cost is high.
Description
Technical field
The utility model relates to the control technology of sintering deposit production technical field, particularly batch layer thickness of sintering machine, specifically a kind of batch layer thickness of sintering machine control system.
Background technology
Sintering plant is the important component part of integrated iron and steel works, be responsible for preparation and the supply of the main iron-bearing material of iron-smelter, sintering plant is large to the treating capacity of material, accounts for the second of integrated iron and steel works, therefore, carry out sintering plant design integrated iron and steel works are significant. In iron and steel is produced, sintering machine is the key equipment for blast furnace raw materials, and the quality of sintering deposit will directly affect the quality of steel products.
Sintering process is a complicated physical and chemical process, is difficult to set up accurate Physics-mathematics model by existing means. During sintering, evenly whether cloth, all has a significant impact the seed output and quality of sintering machine. Therefore, when requiring mixture distributor, granularity, moisture, chemical composition, thickness of feed layer etc. can along chassis width, length direction uniformities. Because by compound along the smooth cloth of chassis length direction and width, packed uniform, can stable sintering process thermal regulation, ensure that sintering process physical-chemical reaction is normal, to obtain the excellent product of metallurgical performance.
Sintering machine (chassis) thickness of feed layer affects the cold strength, hot strength, Yield and quality, ferrous oxide content, reducing property, Fuel Consumption of sintering deposit etc., and therefore, sintering material layer thickness is one of key that controls sintering quality. Sintering machine (chassis) thickness of feed layer is relevant with round roller batcher rotating speed, gate aperture and sintering pallet speed. And sintering pallet speed is to determine according to the position of sintering end point, sintering pallet thickness of feed layer therefore to be ensured, rotating speed and the gate aperture of round roller batcher just must be controlled.
Sintering material layer thickness (comprising grate-layer material) is controlled at 500-55Omm; sintering process is particular about " pave and grill thoroughly "; " paving is the condition of " grilling thoroughly "; the current domestic Artificial Control modes that adopt; due to the control of batch layer thickness of sintering machine more, be by regulate round roller batcher cheat material speed to realize, this just causes larger error; burning and underburnt phenomenon easily occur, thus brings equipment premature abrasion, energy consumption to increase, lubricatedly declines, increases maintenance down number of times and cost.
Utility model content
The purpose of this utility model is to provide a kind of batch layer thickness of sintering machine control system, described control system is at sintering pallet horizontally set one group of Charge level measurer, in order to measure thickness of feed layer mean value, the speed of round roller batcher can be regulated automatically, and by regulating the aperture of homophony gate, thickness of feed layer is compensated, ensure uniform blanking, simultaneously when uneven thickness, adjusted by regulating the aperture of fine setting gate, ensure the uniformity of thickness of feed layer in sintering pallet, in order to solve existing control method thickness of feed layer control inaccuracy, easily there is burning and underburnt, equipment attrition is fast, increase the problem of cost.
For achieving the above object, scheme of the present utility model is: a kind of batch layer thickness of sintering machine control system, described thickness of feed layer control system comprises thickness of feed layer controller, frequency conversion speed-adjusting system, homophony gatage control device, fine setting gatage control device and layer thickness detection apparatus, described layer thickness detection apparatus comprises one group of Charge level measurer, each Charge level measurer arranges with fine setting gate one_to_one corresponding, each Charge level measurer is for detecting the thickness of feed layer of corresponding fine setting gate affiliated area, control output end connection homophony gatage control device and the fine setting gatage control device of described thickness of feed layer controller, the signal input part of the signal output part binder layer thickness controller of described layer thickness detection apparatus, the signal output part connection frequency conversion speed-adjusting system of described thickness of feed layer controller, the signal output part of described frequency conversion speed-adjusting system is used for connecting round roller batcher.
According to batch layer thickness of sintering machine control system described in the utility model, described frequency conversion speed-adjusting system comprises frequency converter and variable-frequency motor, the data output end of the current input terminal binder layer thickness controller of described frequency converter, the frequency output terminal connection variable-frequency motor of described frequency converter, described variable-frequency motor drives connection round roller batcher.
According to batch layer thickness of sintering machine control system described in the utility model, between described thickness of feed layer controller and layer thickness detection apparatus, be connected with transmitter, described transmitter is converted into current signal for the thickness signal that thickness of feed layer controller is received.
According to batch layer thickness of sintering machine control system described in the utility model, described layer thickness detection apparatus comprises 4 ~ 7 Charge level measurers.
According to batch layer thickness of sintering machine control system described in the utility model, described thickness of feed layer controller is PLC.
According to batch layer thickness of sintering machine control system described in the utility model, described PLC is Siemens S7-400 PLC.
The beneficial effect that the utility model reaches: the utility model arranges one group of Charge level measurer along the region of the corresponding each fine setting gate of sintering pallet, using the mean value of the thickness of feed layer that each Charge level measurer detects as thickness of feed layer measured value, automatically the speed of round roller batcher is regulated, and by regulating the aperture of homophony gate, thickness of feed layer is compensated, ensure uniform blanking, simultaneously when uneven thickness, adjusted by regulating the aperture of fine setting gate, ensure the uniformity of thickness of feed layer in sintering pallet.
Adopt control system of the present utility model, the accurate rate of thickness of feed layer controlling value can be made greatly to improve, be conducive to the raising of Sintering Yield and quality, and alleviate labour intensity, improve productivity ratio.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model thickness of feed layer control;
Fig. 2 is cloth situation schematic diagram of the present utility model;
Fig. 3 is thickness of feed layer control system schematic diagram of the present utility model;
Fig. 4 is thickness of feed layer control principle drawing of the present utility model.
In figure, 1 is auxiliary bed material ore deposit groove, and 2 is mixture ore trough, 3 is sintering pallet, and 4 is round roller batcher, and 5 is homophony gate, 6 is fine setting gate, and 7 is Charge level measurer, and 8 is homophony gatage control device, 9 is fine setting gatage control device, and 10 is frequency conversion speed-adjusting system, and 11 is layer thickness detection apparatus, 12 is thickness of feed layer controller, and 13 is thickness of feed layer, and 14 is transmitter, 15 is frequency converter, and 16 is variable-frequency motor.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.
As shown in Figure 1, sintering pallet top is provided with feed ore deposit groove, that is: auxiliary bed material ore deposit groove 1 and mixture ore trough 2, feed ore deposit trench bottom is offered homophony gate 5, homophony gate 5 below is along sintering pallet 3 width, horizontally set one group of fine setting gate 6, be preferably 5 fine setting gates 6, round roller batcher 4 is arranged at the below of fine setting gate 6, round roller batcher 4 is for the interior blanking of sintering pallet 3, by control the rotating speed of round roller batcher 4 can control blanking number, thus control the thickness of the bed of material. Described layer thickness detection apparatus 11 comprises 4 ~ 7 Charge level measurers 7, be preferably 5 Charge level measurers 7, described 5 Charge level measurers, 7 and 5 fine setting gate 6 one_to_one corresponding arrange, and are respectively used to detect the thickness of feed layer of 5 fine setting gate 6 affiliated areas. Fig. 2 gives position relationship and the cloth situation of feed ore deposit groove, homophony gate and fine setting gate.
As shown in Figure 3, batch layer thickness of sintering machine control system mainly comprises thickness of feed layer controller 12, frequency conversion speed-adjusting system 10, homophony gatage control device 8, fine setting gatage control device 9 and layer thickness detection apparatus 11. The thickness of feed layer controller 12 that the utility model adopts is PLC, and layer thickness detection apparatus 11 comprises 5 Charge level measurers 7. Homophony gatage control device 8 is for controlling the aperture of homophony gate 5; Fine setting gatage control device 9 is for controlling the aperture of fine setting gate 6; Frequency conversion speed-adjusting system 10 is for regulating the rotating speed of round roller batcher 4; The thickness of feed layer of layer thickness detection apparatus 11 for detecting in sintering pallet 3, concurrent feeding layer thickness detected value is to PLC; Described PLC is used for according to the deviation of thickness of feed layer detected value and setting value, and sending controling instruction, to frequency conversion speed-adjusting system 10, homophony gatage control device 8 and fine setting gatage control device 9, is realized the control to thickness of feed layer. PLC of the present utility model adopts Siemens S7-400 PLC. Thickness of feed layer detected value of the present utility model is the thickness of feed layer mean value that 5 Charge level measurers detect.
Sintering material layer thickness (comprising grate-layer material) general control is at 500 ~ 55Omm, when adopting thickness of feed layer control system of the present utility model to control thickness of feed layer, the thickness of feed layer mean value that PLC is measured according to 5 Charge level measurers 7 along sintering pallet 3 horizontally set, automatically regulate the feeding coal of round roller batcher 4, fine setting gate 6 and homophony gate 5, realize surely thick cloth. As shown in Figure 4, thickness of feed layer setting value is given in host computer, and sends to PLC, and host computer adopts 610H industrial computer, layer thickness detection apparatus real-time testing thickness of feed layer, and feed back to PLC, PLC, according to the feedback of layer thickness detection apparatus, is calculated the mean value of 5 thickness as final thickness of feed layer detected value, thickness of feed layer detected value and setting value compare by PLC, according to both deviations, regulate corresponding adjusting round roller batcher rotating speed according to PID.
The control of the utility model to round roller batcher, adopt frequency conversion speed-adjusting system, described frequency conversion speed-adjusting system comprises frequency converter 15 and variable-frequency motor 16, and variable-frequency motor 16 drives connection round roller batcher 4. The actual detected value PV of PLC binder layer thickness and setting value SP, utilize PID to regulate, it is given to frequency converter 15 internal current that thickness of feed layer control output valve OP carrys out control inputs. Because variable-frequency motor 16 is directly connected with round roller batcher 4, by the given value of current of initial control frequency converter 15, finally reach the speed that controls round roller batcher 4.
Namely when round roller batcher speed changes, in mixture ore trough, material blanking velocity changes simultaneously, when thickness of feed layer detected value PV is lower than bed of material setting value SP (the present embodiment setting value SP is 500mm), PLC then can increase frequency converter 15 given value of current, and frequency converter 15 output frequency rises, and variable-frequency motor 16 speed increases, round roller batcher 4 rotating speed is also accelerated simultaneously, feed ore deposit groove discharge quantity increases, and thickness of feed layer increases, until bed of material detected value PV reaches SP value. In like manner, when thickness of feed layer detected value PV is higher than thickness of feed layer setting value SP, PLC then can reduce the given value of current of frequency converter 15, frequency converter 15 output frequency declines, variable-frequency motor 16 speed reduces, and round roller batcher 4 rotating speed also reduces simultaneously, and in the groove of feed ore deposit, discharge quantity reduces, thickness of feed layer reduces, until thickness of feed layer detected value PV reaches SP value. The utility model thickness of feed layer control output valve OP is 0%-100%, and corresponding transmitter 14 given value of current scope is 4-20MA, now corresponding frequency converter 15 output frequency 0-50HZ, and corresponding variable-frequency motor rotating speed is 0 ~ 1500 rev/min.
Excessive and affect uniform blanking in order to avoid round roller batcher rotation speed change, the utility model additionally use and regulates the mode of homophony gate aperture to compensate thickness of feed layer. Homophony gate is to drive bin gate to move up and down with 2 electric pulse hydraulic jacks, stroke is 0 ~ 200mm, homophony gate aperture is carried out nonlinear Control by round roller batcher velocity magnitude, thus makes round roller batcher speed that the control of sintering feed thickness change can be realized in normal range of operation. The aperture of homophony gate can control automatically, also can in the other manual operation of sintering machine.
For when reducing main shutter discharge, material produces particle segregation on chassis both sides, and namely chassis both sides granularity is comparatively thick, and gas permeability is better, and chassis median particle size is comparatively thin, and gas permeability is poor. Meanwhile, also in order to avoid because of other operation factors such as funnel bridging, and the situation of material in chassis width blanking inequality is made. Be provided with 5 fine setting gates at chassis width and control cloth, make material present shape as shown in Figure 2 in sintering pallet cloth process. The stroke of fine setting gate is 0 ~ 50mm, carries out single closed-loop control with layer thickness detection apparatus, also can in the other manual operation of sintering machine. Finely tune in the corresponding plane of gate be provided with 5 Charge level measurers at 5, the thickness of feed layer detection range of Charge level measurer is 0 ~ l000mm, detect thickness signal and change into 4-20MA current signal through transmitter, the namely corresponding 0MA of on-the-spot thickness of feed layer 0mm, the corresponding 12MA of 500mm, the corresponding 20MA of 1000mm, the position signalling finally 5 Charge level measurers being detected is added and obtains mean value divided by 5, as thickness of feed layer detected value, represent with PV. Fine setting gate that can flexible modulation relevant position when discharging is uneven, ensures that material is flat consistent. Charge level measurer can continuous measurement granule materials move towards thickness, when the thickness of feed layer in a certain fine setting gate of sintering machine affiliated area changes, send and expect the signal of telecommunication that thick variation is proportional, and compare with thickness of feed layer setting value, control the rotating speed of round roller batcher in time and regulate the aperture of finely tuning gate, detection range is 0 ~ l000mm.
The utility model arranges one group of Charge level measurer along the region of the corresponding each fine setting gate of sintering pallet, using the mean value of the thickness of feed layer that each Charge level measurer detects as thickness of feed layer measured value, automatically the speed of round roller batcher is regulated, and by regulating the aperture of homophony gate, thickness of feed layer is compensated, ensure uniform blanking, simultaneously when uneven thickness, adjusted by regulating the aperture of fine setting gate, ensure the uniformity of thickness of feed layer in sintering pallet. Production practices prove, the application of this Sintering Bed Depth Instrument and control method, and the accurate rate that makes thickness of feed layer controlling value comparatively conventional control improves more than 30%. Its layer thickness control system can meet the requirement of production technology, is conducive to the raising of Sintering Yield and quality, and alleviates labour intensity, improves productivity ratio, has larger application value at metallurgy industry.
Claims (6)
1. a batch layer thickness of sintering machine control system, is characterized in that: described thickness of feed layer control systemTurnkey is drawn together thickness of feed layer controller, frequency conversion speed-adjusting system, homophony gatage control device, fine setting gateOpening control device and layer thickness detection apparatus, described layer thickness detection apparatus comprises one group of Charge level measurer,Each Charge level measurer arranges with fine setting gate one_to_one corresponding, and each Charge level measurer is used for detecting corresponding micro-Adjust the thickness of feed layer of gate affiliated area, the control output end connection of described thickness of feed layer controllerHomophony gatage control device and fine setting gatage control device, the signal of described layer thickness detection apparatusThe signal input part of output binder layer thickness controller, the signal of described thickness of feed layer controller exportsEnd connection frequency conversion speed-adjusting system, the signal output part of described frequency conversion speed-adjusting system is used for connecting round roller batcher.
2. batch layer thickness of sintering machine control system according to claim 1, is characterized in that, described inFrequency conversion speed-adjusting system comprise frequency converter and variable-frequency motor, the current input terminal of the described frequency converter connection bed of materialThe data output end of gage controller, the frequency output terminal connection variable-frequency motor of described frequency converter, described changeFrequently motor drives connection round roller batcher.
3. batch layer thickness of sintering machine control system according to claim 1, is characterized in that, described inThickness of feed layer controller and layer thickness detection apparatus between be connected with transmitter, described transmitter will be for willThe thickness signal that thickness of feed layer controller receives is converted into current signal.
4. batch layer thickness of sintering machine control system according to claim 1, is characterized in that, described inLayer thickness detection apparatus comprise 4 ~ 7 Charge level measurers.
5. batch layer thickness of sintering machine control system according to claim 1, is characterized in that, described inThickness of feed layer controller be PLC.
6. batch layer thickness of sintering machine control system according to claim 4, is characterized in that, described inPLC be Siemens S7-400 PLC.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520165116.0U CN204665915U (en) | 2015-03-23 | 2015-03-23 | A kind of batch layer thickness of sintering machine control system |
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| CN201520165116.0U CN204665915U (en) | 2015-03-23 | 2015-03-23 | A kind of batch layer thickness of sintering machine control system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940176A (en) * | 2016-01-04 | 2017-07-11 | 中冶长天国际工程有限责任公司 | A kind of thickness of feed layer detection means and method |
| CN107309099A (en) * | 2017-07-20 | 2017-11-03 | 江苏华大离心机制造有限公司 | The control method of cloth in a kind of bowl |
| CN107755063A (en) * | 2016-08-18 | 2018-03-06 | 中国铁建重工集团有限公司 | A kind of mobile crushing station and its feeding control method and system |
| CN110657681A (en) * | 2019-10-11 | 2020-01-07 | 湖南长天自控工程有限公司 | Sintering machine material distribution control system and method |
| CN110657680A (en) * | 2019-10-11 | 2020-01-07 | 湖南长天自控工程有限公司 | Sintering machine material distribution control system and method |
| CN111076546A (en) * | 2019-12-27 | 2020-04-28 | 湖南长天自控工程有限公司 | Sintering machine material distribution control method and system |
| CN113503737A (en) * | 2021-07-20 | 2021-10-15 | 山信软件股份有限公司 | Material layer thickness control method |
| CN113696321A (en) * | 2021-11-01 | 2021-11-26 | 佛山市高明贝斯特陶瓷有限公司 | Ceramic production system based on digital cloth |
| WO2022037500A1 (en) * | 2020-08-20 | 2022-02-24 | 中冶长天国际工程有限责任公司 | Material distribution control system and method based on material layer thickness prediction |
| CN114659369A (en) * | 2022-03-30 | 2022-06-24 | 中冶华天工程技术有限公司 | Double closed-loop sintering material distribution control method based on air permeability soft measurement |
-
2015
- 2015-03-23 CN CN201520165116.0U patent/CN204665915U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940176A (en) * | 2016-01-04 | 2017-07-11 | 中冶长天国际工程有限责任公司 | A kind of thickness of feed layer detection means and method |
| CN106940176B (en) * | 2016-01-04 | 2019-03-01 | 中冶长天国际工程有限责任公司 | A kind of thickness of feed layer detection device and method |
| CN107755063A (en) * | 2016-08-18 | 2018-03-06 | 中国铁建重工集团有限公司 | A kind of mobile crushing station and its feeding control method and system |
| CN107309099A (en) * | 2017-07-20 | 2017-11-03 | 江苏华大离心机制造有限公司 | The control method of cloth in a kind of bowl |
| CN110657681A (en) * | 2019-10-11 | 2020-01-07 | 湖南长天自控工程有限公司 | Sintering machine material distribution control system and method |
| CN110657680A (en) * | 2019-10-11 | 2020-01-07 | 湖南长天自控工程有限公司 | Sintering machine material distribution control system and method |
| CN111076546A (en) * | 2019-12-27 | 2020-04-28 | 湖南长天自控工程有限公司 | Sintering machine material distribution control method and system |
| CN111076546B (en) * | 2019-12-27 | 2022-04-19 | 湖南长天自控工程有限公司 | Sintering machine material distribution control method and system |
| WO2022037500A1 (en) * | 2020-08-20 | 2022-02-24 | 中冶长天国际工程有限责任公司 | Material distribution control system and method based on material layer thickness prediction |
| CN113503737A (en) * | 2021-07-20 | 2021-10-15 | 山信软件股份有限公司 | Material layer thickness control method |
| CN113696321A (en) * | 2021-11-01 | 2021-11-26 | 佛山市高明贝斯特陶瓷有限公司 | Ceramic production system based on digital cloth |
| CN114659369A (en) * | 2022-03-30 | 2022-06-24 | 中冶华天工程技术有限公司 | Double closed-loop sintering material distribution control method based on air permeability soft measurement |
| CN114659369B (en) * | 2022-03-30 | 2023-12-26 | 中冶华天工程技术有限公司 | Double closed loop sintering cloth control method based on air permeability soft measurement |
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