CN86108905A - Raw meal composition charge ratio autocontrol system for vertical furnance - Google Patents
Raw meal composition charge ratio autocontrol system for vertical furnance Download PDFInfo
- Publication number
- CN86108905A CN86108905A CN86108905.7A CN86108905A CN86108905A CN 86108905 A CN86108905 A CN 86108905A CN 86108905 A CN86108905 A CN 86108905A CN 86108905 A CN86108905 A CN 86108905A
- Authority
- CN
- China
- Prior art keywords
- raw material
- control system
- raw
- flow
- shaft kiln
- 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.)
- Withdrawn
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 11
- 235000012054 meals Nutrition 0.000 title abstract description 3
- 239000002994 raw material Substances 0.000 claims abstract description 33
- 239000004568 cement Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000009977 dual effect Effects 0.000 claims abstract description 7
- 239000004615 ingredient Substances 0.000 claims description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 239000003610 charcoal Substances 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009466 transformation Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 235000021050 feed intake Nutrition 0.000 description 1
- 230000009123 feedback regulation Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000004876 x-ray fluorescence Methods 0.000 description 1
Images
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Control Of Non-Electrical Variables (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The present invention is a kind of advanced person, practicality and economic raw meal composition charge ratio autocontrol system for vertical furnance.At the bigger problem of main material component fluctuation in the shaft kiln cement plant raw material, adopt a kind of special dual closed loop control method: promptly use flow rate set value controller and microcomputer nuclear scale, press the flow of main material in the set-point control raw material; With raw material rate value controller and quick five elements analytical instrument, readjustment flow set-point, (stablizing P) is qualified for KH, N to keep raw material rate value.The present invention is applicable to shaft kiln cement plant kinds of processes flow process, existing equipment, factory building is changed little, invests for a short time, and instant effect is particularly suitable for the technological transformation of shaft kiln cement plant.
Description
The present invention relates to the feed intake control of composition proportion process of microcomputer nuclear measurement instrument industry process control, particularly factory.
Now external manufacture of cement adopts large-sized rotary kiln mostly.Carry out full elemental analysis with large-scale x-ray fluorescence analyzer, cooperate buncher control mass flow, whole raw material system automation degree height with the special electronic scale.But equipment investment is big, is not suitable for shaft kiln cement plant.
China cement mill mostly is vertical kiln system greatly, does not still have vertical kiln raw material composition proportion automatic control system at present.
The flow of several main materials in the raw material is promptly controlled in the charging of domestic existing microcomputer raw-meal ingredient.But shaft kiln cement plant does not generally have large-scale homogenizing storehouse, and the material component fluctuation is bigger, therefore only controls the proportioning control that mass flow still can't be realized raw ingredients.And the vertical kiln raw material proportioning feed system that adopts mechanical scale or electronic scales to measure mass flow exists precision low, and shortcomings such as long-time stability difference can not guarantee raw material lime saturation ratio KH value, and stablizing of silicon rate N value, aluminium rate P value is qualified.
The objective of the invention is to find out the automatic control system of the composition proportion process of shaft kiln cement plant, shaft kiln cement plant production charging is constantly adjusted when carrying out, make proportioning quite accurate.
Process of the present invention is to find a kind of new dual closed-loop control system of suitable shaft kiln cement plant.Realize the automatic control of raw ingredients proportioning with flow rate set value controller and raw material rate value controller.
The flow rate set value controller is controlled microcomputer, special software, time control transducer lock in time and feeding control executing mechanism by industrial process and is formed.Use the main material actual flow of controlled nucleon operated belt conveyor scale on-line measurement.Be input in the microcomputer and compare with the mass flow definite value, frequency characteristic and feedback transfer function according to system, obtain back the control amount with special software, by returning control transducer lock in time, change silicon controlled conduction angle in the feeder topworks, adjust mass flow, realize the closed-loop control of mass flow.(first reclose ring control) so be not subjected to the influence of belt tension, material impact, do not disturbed by environment temperature and dust also because of uclear scale contact with belt, thereby can realize that material accurately adjusts, and be qualified to reach stablizing of raw ingredients.
The raw material rate value controller is made up of control microcomputer, dedicated computing software and the data communication interface and the rapid fluorescence five elements analytical instrument that have a long cable remote control transmission photoelectrical coupler.Use rapid fluorescence five elements analytical instrument quick sampling to measure five kinds of component contents such as calcium, iron, silicon, aluminium, charcoal in the raw material, be transferred to the control microcomputer through the cable remote control, calculate each three rate values of raw material array constantly, frequency characteristic and feedback transfer function according to system, calculate and adjust the flow set-point of several materials with tendency method, realize that the definite value of three rate values of raw material (KH value, N value, P value) is controlled.(second recloses encircles control)
The principle of raw meal composition charge ratio autocontrol system for vertical furnance and particular content are as shown in Figure 1.
Four kinds of main material lime stones, clay, iron powder and coals forming raw material are stored in feed bin A respectively
1, A
2, A
2, A
4In, by feeder B
1, B
2, B
3, B
4Down to dividing belt C
1, C
2, C
3, C
4On.A controlled nucleon operated belt conveyor scale D respectively is installed on four branch belts
1, D
2, D
3, D
4, four kinds of material actual flows of instantaneous on-line measurement.Measuring-signal is input to flow rate set value controller E
1, E
2, E
3, E
4In, through with the people for presetting four kinds of mass flow set-point I that (L sends here by control desk) or raw material rate value controller provide
1, I
2, I
3, I
4Relatively, calculate back the control amount, by returning control transducer P lock in time with special software
1, P
2, P
3, P
4Change thyristor operating angle in the feeder topworks, control feeder B
1, B
2, B
3, B
4Feeding capacity, realize the first ring feedback regulation control of reclosing, i.e. the definite value of mass flow control.
In view of compositions such as calcium, silicon, aluminium in shaft kiln cement plant main material, particularly lime stone, the clay often fluctuate, only there is flow rate set value control can not guarantee the qualified of composition proportion in the raw material.For this reason, after total belt F entered raw mill G, to the sampler H place between the raw material logical sequence N, taking-up was regularly ground raw material and is made sample and deliver to and carry out quick composition measurement in the analytical instrument J at the mill tail four kinds of mixing of materials.Each measurement result constantly is in cable is input to raw material rate value controller K.In controller K, at first calculate actual, weigh three whether qualified rate values of raw ingredients proportioning: KH value (raw material lime saturation ratio) N value (silicon rate) P value (aluminium rate), and with the qualification rate value comparison that will reach.Because raw material will be through bigger time delay to going out mill back sampler H from blanking belt C, therefore the frequency characteristic of the second reclosing ring control is far below first weight, therefore will be according to the variation tendency of a series of sample time of measured value, calculate by special software, adjust the flow set-point I of four kinds of materials with tendency method
1, I
2, I
3, I
4, changing to offset the raw ingredients that causes owing to the material component fluctuation, realization second is reclosed and is encircled control: the definite value control of raw material rate value.
L is a raw material system centre control desk.It comprises: realize interactive operation keyboard, various shift knobs, various parameter display, pilot lamp and the printer manually controlled with microcomputer.In fact it has comprised whole hardware and softwares of industrial process control microcomputer itself and the dual close-loop automatic adjustment of realization system.
The main material component of raw material that M provides for manufacturer, the calorific value of coal, ash content, and known arrays such as three rate values of desired raw material and permission fluctuation range can obtain initial mass flow set-point I through special software calculating
1, I
2, I
3, I
4This control desk can be monitored the whole raw material production run of shaft kiln cement plant, can numeral show relevant surveying instrument, regulator 60 surplus kind of parameter, can the class's of statistics output, day output, raw ingredients, raw material rate value situation of change, and print production report.
The present invention is owing to adopt dual closed-loop control, with advanced non-contact type nuclear instrument, realized that the composition proportion that shaft kiln cement plant fails to solve for many years always controls automatically, will play huge effect for improving the shaft kiln cement plant product quality.Native system does not disturb the original technological process in cement mill, small investment, instant effect, has advance, practicality, economy, is easy to be accepted by shaft kiln cement producer.
Claims (4)
1, a kind of shaft kiln cement plant raw-meal ingredient control system is characterized in that, is a kind of automatic control system of raw material flow composition proportion process.
2, according to the automatic control system of the described raw ingredients proportioning of claim 1 process, it is characterized in that, with the dual closed-loop control system of microcomputer nuclear instrument realization.
3, according to the dual closed-loop control system of the described microcomputer nuclear instrument of claim 2, it is characterized in that, with microcomputer nuclear scale D on-line measurement raw material bistrique material instantaneous delivery, by flow rate set value controller E, realize the first reclosing ring control, realize the definite value control of mass flow.
4, according to the dual closed-loop control system of the described microcomputer nuclear instrument of claim 2, it is characterized in that, measure component contents such as calcium, iron, silicon, aluminium, charcoal in the mill raw material fast with radiofluorescence five elements quick analytic instrument J, by raw material rate value controller K, calculate raw material rate value, adjustment mass flow definite value I realizes the second reclosing ring control, and realization raw ingredients proportioning is controlled automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86108905 CN1009768B (en) | 1986-12-31 | 1986-12-31 | Raw meal composition charge ratio autocontrol system for vertical furnance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86108905 CN1009768B (en) | 1986-12-31 | 1986-12-31 | Raw meal composition charge ratio autocontrol system for vertical furnance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86108905A true CN86108905A (en) | 1988-07-20 |
| CN1009768B CN1009768B (en) | 1990-09-26 |
Family
ID=4804100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86108905 Expired CN1009768B (en) | 1986-12-31 | 1986-12-31 | Raw meal composition charge ratio autocontrol system for vertical furnance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1009768B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049200C (en) * | 1994-03-08 | 2000-02-09 | 中国建筑材料科学研究院设计所 | Method for controlling the raw ingredients of cement |
| CN101458517B (en) * | 2007-12-14 | 2010-10-27 | 中国科学院沈阳自动化研究所 | Raw material rate value optimizing and controlling method for cement raw material batching system |
| CN104374791A (en) * | 2014-11-28 | 2015-02-25 | 广西鱼峰水泥股份有限公司 | Technology for producing fluorometric-analysis raw material with high contrastive acceptability |
| CN104390994A (en) * | 2014-11-28 | 2015-03-04 | 广西鱼峰水泥股份有限公司 | Method for producing high-contrast yield fluorescence analysis raw material |
| CN104569016A (en) * | 2014-11-28 | 2015-04-29 | 广西鱼峰水泥股份有限公司 | Method for increasing raw material comparison passing percent through fluorescence analysis |
| CN104596814A (en) * | 2014-11-28 | 2015-05-06 | 广西鱼峰水泥股份有限公司 | Production method of fluorescence analysis raw material with high contrast qualified rate |
| CN104597066A (en) * | 2014-11-28 | 2015-05-06 | 广西鱼峰水泥股份有限公司 | Method for improving contrast qualified rate of fluorescence analysis raw material |
| CN104634801A (en) * | 2014-11-28 | 2015-05-20 | 广西鱼峰水泥股份有限公司 | Technology for improving comparison yield of fluorescence analysis raw materials |
| CN104655665A (en) * | 2014-11-28 | 2015-05-27 | 广西鱼峰水泥股份有限公司 | Process capable of improving contrast yield of fluorescence analysis raw material |
| CN106796435A (en) * | 2014-08-22 | 2017-05-31 | 可耐福石膏两合公司 | Apparatus and method for mixing unconsolidated rock material |
-
1986
- 1986-12-31 CN CN 86108905 patent/CN1009768B/en not_active Expired
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049200C (en) * | 1994-03-08 | 2000-02-09 | 中国建筑材料科学研究院设计所 | Method for controlling the raw ingredients of cement |
| CN101458517B (en) * | 2007-12-14 | 2010-10-27 | 中国科学院沈阳自动化研究所 | Raw material rate value optimizing and controlling method for cement raw material batching system |
| CN106796435A (en) * | 2014-08-22 | 2017-05-31 | 可耐福石膏两合公司 | Apparatus and method for mixing unconsolidated rock material |
| CN104374791A (en) * | 2014-11-28 | 2015-02-25 | 广西鱼峰水泥股份有限公司 | Technology for producing fluorometric-analysis raw material with high contrastive acceptability |
| CN104390994A (en) * | 2014-11-28 | 2015-03-04 | 广西鱼峰水泥股份有限公司 | Method for producing high-contrast yield fluorescence analysis raw material |
| CN104569016A (en) * | 2014-11-28 | 2015-04-29 | 广西鱼峰水泥股份有限公司 | Method for increasing raw material comparison passing percent through fluorescence analysis |
| CN104596814A (en) * | 2014-11-28 | 2015-05-06 | 广西鱼峰水泥股份有限公司 | Production method of fluorescence analysis raw material with high contrast qualified rate |
| CN104597066A (en) * | 2014-11-28 | 2015-05-06 | 广西鱼峰水泥股份有限公司 | Method for improving contrast qualified rate of fluorescence analysis raw material |
| CN104634801A (en) * | 2014-11-28 | 2015-05-20 | 广西鱼峰水泥股份有限公司 | Technology for improving comparison yield of fluorescence analysis raw materials |
| CN104655665A (en) * | 2014-11-28 | 2015-05-27 | 广西鱼峰水泥股份有限公司 | Process capable of improving contrast yield of fluorescence analysis raw material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1009768B (en) | 1990-09-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100458604C (en) | Material balance intelligent control system | |
| CN202486576U (en) | Cement raw material blending control device | |
| CN86108905A (en) | Raw meal composition charge ratio autocontrol system for vertical furnance | |
| CN101920530B (en) | Continuous proportioning system and method for refractory synthesis material | |
| CN113359465B (en) | System and method for intelligently controlling sintering ingredient components | |
| CN107130105B (en) | A kind of method for improving sinter basicity coefficient of stabilization and its proportioner used | |
| CN107487645B (en) | A kind of mining goods vehicle automatic identification entrucking Coal Blending System and method | |
| CN104965532A (en) | Cement raw material ingredient control system and method | |
| CN102147282A (en) | Intelligent dynamic weightlessness scale | |
| CN111933224A (en) | Raw material automatic batching method and system based on clinker rate value | |
| CN114259930A (en) | Raw material batching and feeding system and method for boiling chlorination process by using same | |
| CN101555546A (en) | Proportioning regulation method of sintering feed | |
| CN102156486A (en) | Control method for adding water in mixture in sintering production | |
| CN214717429U (en) | Automatic production system for machine-made sand | |
| CN113602830A (en) | Smelting furnace feeding system and control method | |
| CN104724479A (en) | System and method for blending power heat coal | |
| CN2249127Y (en) | Adding-ratio controller for sintering added coal powder | |
| CN206778210U (en) | A kind of system of compounding ingredient containing Iron Ore Powder | |
| CN2063870U (en) | Raw materials proportion auto-controlling system | |
| CN111443598A (en) | Cement vertical mill control method and device | |
| CN216727010U (en) | Raw material batching feeding system in boiling chlorination technology | |
| CN106964271A (en) | A kind of system and method for compounding ingredient containing Iron Ore Powder | |
| CN2910854Y (en) | Precision dosage apparatus | |
| CN205909922U (en) | Accurate batching control system of carbide raw materials | |
| CN105046357A (en) | Material balance control model for return ore bunker in sintering system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| C14 | Grant of patent or utility model | ||
| C19 | Lapse of patent right due to non-payment of the annual fee |