CN202150058U - Cement kiln decomposing furnace temperature controlling device - Google Patents
Cement kiln decomposing furnace temperature controlling device Download PDFInfo
- Publication number
- CN202150058U CN202150058U CN201120200164U CN201120200164U CN202150058U CN 202150058 U CN202150058 U CN 202150058U CN 201120200164 U CN201120200164 U CN 201120200164U CN 201120200164 U CN201120200164 U CN 201120200164U CN 202150058 U CN202150058 U CN 202150058U
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- CN
- China
- Prior art keywords
- decomposing furnace
- coal
- temperature
- cement kiln
- coal dust
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
Provided is a cement kiln decomposing furnace temperature controlling device, mainly comprising a temperature sensor, a coal dust weighing scale and a computer control system. A decomposing furnace is equipped with the temperature sensor; a coal dust warehouse coal producing position is equipped with a coal dust flow scale; signals are connected to the computer control system which adjusts the flow size of the coal dust flow scale according to temperatures detected by the temperature sensor installed on the decomposing furnace so as to control the temperatures of the decomposing furnace, which can substantially raise the coal feeding control precision of the decomposing furnace. The temperatures of the decomposing furnace fluctuate in a very small scope, which can realize the production with high efficiency, low energy consumption and high quality of the decomposing furnace.
Description
Technical field
The utility model relates to a kind of industrial control device, particularly relates to cement kiln calciner temperature control device.
Background technology
The equipment single-machine capacity of modern cement production process is big, and the production continuity is strong, and each link harmony is high.Dore furnace is the core of precalcining system.The temperature of dore furnace is a hysteresis controlling object, temperature reach stable before, feed the coal amount and make corresponding changes, operation by rule of thumb entirely cause the calciner temperature fluctuation big, thereby the manufacture of cement rate is low, energy consumption is high, quality is unstable.
Summary of the invention
In order to reduce the calciner temperature fluctuation, the utility model has designed a kind of cement kiln calciner temperature control device, and this device can come according to the height of calciner temperature to regulate automatically to feed the coal weighing balance.
The technical scheme that the utility model adopted is: the mounting temperature sensor at kiln tail dore furnace place, and temperature signal introduced computer control system; In Pulverized Coal Bin blanking place coal powder metering is installed and is claimed, and introduce computer system with feedback signal with flow is given.Thereby control the height that flow regulation that coal dust claims is controlled calciner temperature according to the temperature signal of introducing.
In order to realize above-mentioned functions; Cement kiln calciner temperature control device is provided with manual, automatic two kinds of mode of operations; Automatic mode, the temperature conditions of the temperature sensor monitors dore furnace through being installed in dore furnace to regulate coal dust automatically according to the height of temperature and is claimed flow; Manual mode, power transportation pipe block, when coal dust is claimed fault, when temperature took place than great fluctuation process, control system needed manual intervention, manual adjustments.After making temperature recover normally, change automatic control over to.Thereby we adopt and manually reach with the automatic mode replacement operation that calciner temperature maintains fluctuation in the very little normal range in the whole process of production, realization dore furnace high-level efficiency, low energy consumption, high-quality production.
The beneficial effect of the utility model is that the stable operation of kiln is kept in the generation that the minimizing primary heater stops up, and helps improving the output and the quality of grog, and has also reduced the generation of personnel casualty accidents.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is a cement kiln dore furnace process chart;
Fig. 2 is a cement kiln calciner temperature control system structural drawing;
Fig. 3 cement kiln calciner temperature control device control strategy process flow diagram.
Among the figure
1, dore furnace, 2, coal dust claims, 3, Pulverized Coal Bin, 4, temperature sensor,
5, host computer, 6, temperature transmitter, 7, thermopair,
8, feed the coal weighing balance, 9, slave computer PLC
Embodiment
In Fig. 1, at dore furnace 1 place's mounting temperature sensor 4, at Pulverized Coal Bin 3 places of producing coal coal powder metering is installed and is claimed 2, and claim flow given and flow feedback signal access computer control system temperature signal, coal dust.
Fig. 2 is a cement kiln calciner temperature control system structural drawing, and the parameter of 5 pairs of total systems of host computer is monitored and set, through carrying out message exchange between fieldbus and the slave computer PLC9.Slave computer PLC9 accomplishes the collection and the processing of data, accepts host computer 5 instructions, realizes closed loop adjustment.In the control procedure, when temperature took place than great fluctuation process, control system needed manual intervention, make temperature recover normal after, change automatic control over to.
Shown in Figure 3ly be that control strategy implements; Calciner temperature control is accomplished by the constant temperature pid control circuit of PLC controller indoor design; The value of feedback of the temperature signal that pid control circuit detects through the temperature transmitter that relatively is installed on the dore furnace and the difference of the temperature value of setting are exported the flow set-point that pulverized coal flow is claimed.When design temperature greater than the temperature transmitter value of feedback, then coal dust claims that the frequency converter rotating speed reduces, it is given to reduce pulverized coal flow.When setting value less than the temperature transmitter value of feedback, then coal dust claims that the frequency converter rotating speed raises, it is given to increase pulverized coal flow.Thereby realize that calciner temperature fluctuates in constant scope.
Claims (3)
1. cement kiln calciner temperature control device; This device by dore furnace, temperature sensor, Pulverized Coal Bin, coal powder metering claim, host computer, slave computer PLC form, it is characterized in that: claim that with temperature signal, coal dust flow is given, feedback signal inserts computer control system.
2. a kind of cement kiln calciner temperature control device according to claim 1 is characterized in that: the mounting temperature sensor at the dore furnace place.
3. a kind of cement kiln calciner temperature control device according to claim 1 is characterized in that: coal powder metering is installed at the Pulverized Coal Bin place of producing coal is claimed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120200164U CN202150058U (en) | 2011-06-14 | 2011-06-14 | Cement kiln decomposing furnace temperature controlling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120200164U CN202150058U (en) | 2011-06-14 | 2011-06-14 | Cement kiln decomposing furnace temperature controlling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202150058U true CN202150058U (en) | 2012-02-22 |
Family
ID=45591111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120200164U Expired - Fee Related CN202150058U (en) | 2011-06-14 | 2011-06-14 | Cement kiln decomposing furnace temperature controlling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202150058U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104656436A (en) * | 2014-10-27 | 2015-05-27 | 济南大学 | Decomposing furnace outlet temperature modeling method |
| CN109357539A (en) * | 2018-09-26 | 2019-02-19 | 中材海外工程有限公司 | Novel intelligent cement sinter leaching control system |
-
2011
- 2011-06-14 CN CN201120200164U patent/CN202150058U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104656436A (en) * | 2014-10-27 | 2015-05-27 | 济南大学 | Decomposing furnace outlet temperature modeling method |
| CN104656436B (en) * | 2014-10-27 | 2018-04-06 | 济南大学 | A kind of decomposition furnace outlet Temperature Modeling method |
| CN109357539A (en) * | 2018-09-26 | 2019-02-19 | 中材海外工程有限公司 | Novel intelligent cement sinter leaching control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Xie Changjing Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120222 Termination date: 20130614 |