CN102607284A - Jam-judging and automatic-cleaning device for preheater - Google Patents
Jam-judging and automatic-cleaning device for preheater Download PDFInfo
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- CN102607284A CN102607284A CN2012100513234A CN201210051323A CN102607284A CN 102607284 A CN102607284 A CN 102607284A CN 2012100513234 A CN2012100513234 A CN 2012100513234A CN 201210051323 A CN201210051323 A CN 201210051323A CN 102607284 A CN102607284 A CN 102607284A
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- preheater
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Abstract
A jam-judging and automatic-cleaning device for a preheater on a cement production line mainly comprises a level sensor, a pressure sensor, a gas storage cylinder, a blow electromagnetic valve, a gas delivery steel pipe and a computer control system. The level sensor, the pressure sensor and the blow electromagnetic sensor are installed on a cone of the preheater and used for transmitting level signals, cone pressure signals and drive of the electromagnetic valve into the computer control system, jam of the preheater is determined to drive the blow electromagnetic value to operate and clean the preheater according to change of the level and pressure signals. By means of the jam-judging and automatic-cleaning device compared with traditional manual cleaning, casualties are reduced, and chamotte quality and yield are improved.
Description
Technical field
The present invention relates to a kind of cement producing line preheater judgment of clogging and automatic clearing apparatus, this device judges automatically that through computer control system preheater stops up, and block clearing is carried out in the work of control air blowing magnetic valve.
Background technology
At present; New dry process production technology ubiquity pre-heating system blocking problem such as suspension preheating predecomposition rotary kiln; The normal operation of kiln has not only been upset in the generation of stopping up, and has reduced the output and the clinker quality of kiln, and deals with and waste time and energy; Often disclose stifled mode and solve, and manual work is disclosed the stifled mode accident that causes casualties easily and taken place through manual work.
Summary of the invention
In order to take precautions against and to reduce the generation that preheater stops up, the present invention has designed a kind of preheater judgment of clogging and automatic block clearing device, and this device can judge whether preheater stops up, and is blown into compressed air completion block clearing through control air blowing magnetic valve.
The technical scheme that the present invention adopted is: in the preheater windspout barrel tapering and kiln tail smoke-box the air blowing magnetic valve all is installed, the air blowing magnetic valve links to each other with air accumulator through appendix, with air blowing solenoid control signal introducing computer control system; The nucleon level-sensing device is installed in the preheater windspout barrel tapering respectively, and the material level signal is introduced computer control system; In order to improve the control reliability, prevent the level sensor misoperation, respectively in the preheater windspout barrel tapering and smoke-box setting pressure sensor, and pressure signal introduced computer control system.Based on the material level of introducing and the variation of pressure signal, judge by original control system whether it stops up, then send signal the air blowing magnetic valve is moved if stop up, the function of realization automatic block clearing.
In order to realize above-mentioned functions; This preheater judgment of clogging and automatic clearing apparatus have four kinds of mode of operations; First kind of pattern material level control model, the material level level sensor monitoring solid accumulation situation through tremie pipe awl sections at different levels are installed starts the block clearing of air blowing magnetic valve when high charge level occurring; Therefore second kind of pattern is pressure control mode, when the preheater putty occurs, tends to occur preheater cone negative pressure and sharply reduces, and can utilize the variation of preheater cone negative pressure to judge whether putty and as the control signal of magnetic valve; The third pattern is the Automatic Cycle pattern, according to preset time Automatic Cycle control electromagnetism, regularly block clearing; The 4th kind of pattern manual mode manually controlled magnetic valve by the operator, and wherein first and second kinds of patterns can realize the intelligent closed loop control of magnetic valve.The air blowing magnetic valve misoperation that causes for the fault of the broken string that prevents material level signal and pressure signal or checkout gear has in addition also designed broken string and plant failure and has differentiated, and when above-mentioned fault occurring, can stop present mode automatically, and send alarm to the operator.
The invention has the beneficial effects as follows, reduce the generation that preheater stops up, keep the stable operation of kiln, help improving the output and the quality of grog, and also reduced the generation of personnel casualty accidents.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the process chart of preheater judgment of clogging and automatic clearing apparatus.
C1-C5 is a 1-5 level preheater windspout barrel among the figure, and 2-C5 representes that 5 grades of tubes are two, and 4_6 (2) expression has two 5 grades tube cone pressure measuring points, and 5_5 (2) expression has two 5 grades tube cone material level measuring points; 3_6 (2) expression has two 5 grades of air blowing magnetic valves.
Fig. 2 is preheater judgment of clogging and automatic clearing apparatus control system configuration figure.
Fig. 3 is preheater judgment of clogging and automatic clearing apparatus control strategy flow chart.
The specific embodiment
In Fig. 1; Preheater windspout barrel tapering 3_2-3_6 (2) and kiln tail smoke-box air blowing magnetic valve 3_1 link to each other with air accumulator 1 through gas pipeline 2; Level sensor 5_1-5_5 (2) and pressure sensor 4_2-4_6 (2) are installed in the preheater windspout barrel tapering; Kiln tail smoke-box setting pressure sensor 4_1, and with material level signal and pressure signal access computer control system.
Shown in Figure 2 is that preheater judgment of clogging and automatic clearing apparatus control system configuration is implemented, and material level signal LSH and pressure signal P T are introduced the I/O passage of on-the-spot PLC, PLC output channel control magnetic valve D switching.On-the-spot PLC possesses communication module and third party's communication module, inserts monitor respectively and is connected with existing DCS system of factory.
Shown in Figure 3 is control strategy enforcement, controls and has 9 modules.The material level control module is through the material level signal controlling magnetic valve of introducing; The pressure control module is through the pressure signal control magnetic valve of introducing; The Automatic Cycle module, Automatic Cycle control magnetic valve; Manual control module, the operator manually controls magnetic valve.Mode switch can be switched at different working modes.Also introduce the I/O channel information in the mode switch, make mistakes, change the pressure control module automatically over to when material level signal or passage; Make mistakes when pressure signal or passage, change the material level control module automatically over to; Make mistakes simultaneously when material level and pressure, change the Automatic Cycle module automatically over to, more than three kinds of any one situation of situation take place, computer control system is all sent the alert notice operator.
Claims (4)
1. cement producing line preheater judgment of clogging and automatic clearing apparatus; It is characterized in that: in the preheater windspout barrel tapering and kiln tail smoke-box the air blowing magnetic valve all is installed; The air blowing magnetic valve links to each other with air accumulator through appendix, and air blowing solenoid control signal is introduced computer control system; Respectively in the preheater windspout barrel tapering and kiln tail smoke-box nucleon level-sensing device and pressure sensor are installed, and with material level and pressure signal introducing computer control system.
2. cement producing line preheater judgment of clogging according to claim 1 and automatic clearing apparatus is characterized in that: in the preheater windspout barrel tapering and kiln tail smoke-box the air blowing magnetic valve is installed.
3. cement producing line preheater judgment of clogging according to claim 1 and automatic clearing apparatus is characterized in that: the nucleon level-sensing device is installed in the preheater windspout barrel tapering.
4. cement producing line preheater judgment of clogging according to claim 1 and automatic clearing apparatus is characterized in that: in the preheater windspout barrel tapering and smoke-box setting pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100513234A CN102607284A (en) | 2012-03-01 | 2012-03-01 | Jam-judging and automatic-cleaning device for preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100513234A CN102607284A (en) | 2012-03-01 | 2012-03-01 | Jam-judging and automatic-cleaning device for preheater |
Publications (1)
| Publication Number | Publication Date |
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| CN102607284A true CN102607284A (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100513234A Pending CN102607284A (en) | 2012-03-01 | 2012-03-01 | Jam-judging and automatic-cleaning device for preheater |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104056816A (en) * | 2013-03-19 | 2014-09-24 | 刘飞 | Pre-heater cleaning method |
| CN106594777A (en) * | 2016-11-29 | 2017-04-26 | 无锡市锡源锅炉有限公司 | Self-cleaning boiler waste heat recovery device based on smoke pressure detection |
| CN108438561A (en) * | 2018-02-12 | 2018-08-24 | 董武斌 | A kind of device preventing preheater warehouse ramming material |
| CN111115032A (en) * | 2019-12-23 | 2020-05-08 | 张顺元 | Device for removing material accumulated in bin of preheater |
-
2012
- 2012-03-01 CN CN2012100513234A patent/CN102607284A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104056816A (en) * | 2013-03-19 | 2014-09-24 | 刘飞 | Pre-heater cleaning method |
| CN106594777A (en) * | 2016-11-29 | 2017-04-26 | 无锡市锡源锅炉有限公司 | Self-cleaning boiler waste heat recovery device based on smoke pressure detection |
| CN108438561A (en) * | 2018-02-12 | 2018-08-24 | 董武斌 | A kind of device preventing preheater warehouse ramming material |
| CN111115032A (en) * | 2019-12-23 | 2020-05-08 | 张顺元 | Device for removing material accumulated in bin of preheater |
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Application publication date: 20120725 |