CN202853352U - Real-time monitoring device for relative positions of rotary kilns and wheel belts - Google Patents
Real-time monitoring device for relative positions of rotary kilns and wheel belts Download PDFInfo
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- CN202853352U CN202853352U CN 201220545272 CN201220545272U CN202853352U CN 202853352 U CN202853352 U CN 202853352U CN 201220545272 CN201220545272 CN 201220545272 CN 201220545272 U CN201220545272 U CN 201220545272U CN 202853352 U CN202853352 U CN 202853352U
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- rotary kiln
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a real-time monitoring device for relative positions of rotary kilns and wheel belts. The real-time monitoring device comprises a rotary kiln position detection unit, a wheel belt position detection unit, a programmable logic controller (PLC) based on a distributed control system (DCS) and a computer. The rotary kiln position detection unit and the wheel belt position detection unit are connected with the PLC respectively, the PLC is connected with the computer, and a central processing unit (CPU) resolves and transmits data. The rotary kiln position detection unit and the wheel belt position detection unit are divided into movable portions and fixed portions respectively, the movable portions are fixed on a kiln body and on sides of wheel belts and rotate along with the kiln body and the wheel belts, the fixed portions are approach switches and fixed at appropriate positions of circumferential motion of the corresponding movable portions, and a position signal is generated each turn the kiln body and the wheel belts rotate. According to the real-time monitoring device, as the approach switches are utilized to monitor rotary kiln and wheel belt signals, the device is simple and reliable. Positions signals of the rotary kiln and the wheel belts are transmitted directly to the DCS through the detection devices, getting stuck or sliding is discovered timely, and the stability and the service life of the rotary kiln are protected.
Description
Technical field:
The utility model belongs to manufacture of cement automatic control technology field, is specifically related to cement and burns till in the rotary kiln running of workshop kiln body and a kind of real-time monitoring device of wheel with relative slippage.
Background technology:
Rotary kiln is the key equipment in cement plant, wants to guarantee output and the quality of cement production line clinker, and the stable operation of rotary kiln is its important guarantee.How to guarantee that the stable operation of rotary kiln just becomes the vital task in all cement plants.
Rotary kiln will be bound the wheel band thereon and drive its rotation when operation.As shown in Figure 1, among the figure, 1-kiln body, 2-wheel band, 3-cushion block, 4-support roller.Because kiln body 1 and wheel exist difference with 2 coefficient of thermal expansion, rigidity, be designed to greatlyr than the external diameter of kiln body (comprising cushion block) so will take turns in advance the internal diameter of band, kiln body (comprising cushion block) just becomes roll displacement with the inconsistent phenomenon that wheel band produces when rotating like this.It is poor that normal roll displacement, the scope of dislocation only are confined to the diameter of kiln body (comprising cushion block) and wheel band, and occur by a certain percentage.In case dislocation is poor to exceed certain limit and will make rotary kiln occur stuck or the phenomenon such as skid, these phenomenons will cause the abnormal friction between cushion block and the wheel band, shake during the rotation of kiln body, bring out the breakage of refractory brick in the kiln body and come off etc., overhaul and extra production suspension induced losses thereby stop kiln beyond causing.
The cement plant does not also cause widely attention for the operating condition monitoring of wheel band at present, and whether the normal operation of wheel band will directly affect the operation of rotary kiln, therefore develop a kind of band position real-time monitoring system of taking turns, find that in time also the abnormal conditions for the treatment of wheel band are very necessary.
Development along with computer technology and checkout equipment, by approach switch rotary kiln and wheel are delivered to computer system with the real-time testing result of relative position, the relative displacement situation of using the powerful calculating of CPU and logic function to analyze both, middle control operating personnel are with stuck and skidding so that can in time find wheel, thereby so that the operation of rotary kiln is more stable, prolonged the service life of rotary kiln, to guaranteeing clinker quality and output, it is significant to reduce energy consumption of unit product.
Summary of the invention:
Therefore, the purpose of this utility model is to provide a kind of rotary kiln and wheel band relative position real-time monitoring device of appliance computer effect, whether supervise rotary kiln with this normal with the wheel tape travel, the foundation that provides wheel band whether to safeguard, thus ensure the normal operation of rotary kiln.
The utility model rotary kiln and wheel band relative position monitoring device, comprise that rotary kiln position detecting device, wheel are with position detecting device, based on PLC and the computer of DCS system, described rotary kiln position detecting device links to each other with the input interface of PLC respectively with position detecting device with wheel, the communication interface of PLC links to each other with computer, carries out data solver and transmission by CPU between input interface and the communication interface; Described rotary kiln position detecting device and wheel band position detecting device all are divided into movable and fixing two parts, movable part is fixed in kiln body itself and each takes turns the band side, with kiln body and the rotation of wheel band, standing part then is an approach switch, be fixed on really allocation of respective activity part circular motion, kiln body and wheel band whenever rotate a circle, and produce a position signalling.
Described position signalling refers to that rotary kiln and wheel band whenever rotate a circle the used time, the radiuscope of the time that CPU gathers according to whenever rotating a circle and kiln body, wheel band is calculated linear velocity separately, further calculates relative slippage=time difference * kiln running body linear velocity.
Described rotary kiln position detecting device and wheel all are furnished with water collar with the approach switch of position detecting device.
The cable that described rotary kiln position detecting device and each wheel are used with the position detecting device signal transmission adopts high temperature-resistant cable.
The utility model can produce following beneficial effect owing to taked above technical scheme:
1, adopts approach switch monitoring rotary kiln and wheel band position signalling, install simple and reliable.
2, rotary kiln and each wheel band position signalling are directly delivered to the DCS system by checkout gear.
3, the DCS system calculates the relative displacement situation by the CPU computing comparison kiln of PLC and rotating speed and the time difference of each wheel band.
4, CPU operation result and normal value are relatively in time found to take turns to be with stuck or skidding, and are sent warning in order in time process to the operator, eliminate kiln body jitter phenomenon, protect stablizing and the life-span of refractory brick.
Description of drawings:
Fig. 1 is the sectional view that rotary kiln and wheel are with relation.
Fig. 2 is the control block diagram of the utility model device.
The specific embodiment:
As shown in Figure 2, the utility model rotary kiln and wheel band relative position real-time monitoring device comprise that rotary kiln position detecting device 10, wheel are with position detecting device 20, the PLC30 based on the DCS system, computer system 40.
The DCS system namely is called distributed control system, it is a multi-level computer system take communication network as tie that is comprised of process control level and process monitoring level, combine computer (Computer), communication (Communication), show (CRT) and control (Control), be the 4C technology in the new control system of one, its basic thought is that decentralised control, centralized operation, differentiated control, flexible configuration, configuration are convenient.The DCS system mainly contains the compositions such as field control station (I/O station), data communication station, human-machine interface unit (operator station, engineer station), rack, power supply.
In the DCS system, can adopt a plurality of PLC30 to realize field control station and data communication station function.PLC is Programmable Logic Controller, comprises that CPU, memory, input/output interface, embedded operating system form.The user can be according to I/O type and the quantity of needs configuration (expansion) oneself of oneself, the user writes control program by the demand for control of oneself, download in the PLC memory, PLC is in operation, the program of operating system user in the PLC according to the input of user program by the input interface settling signal, and is processed computing by CPU, operation result is outwards exported by output interface, with control executing agency.
Therefore, the utility model accesses with the position signalling of the standards such as position detecting device 20 rotary kiln position detecting device 10 and each wheel the input interface 31 of PLC by signal cable under the PLC framework based on the DCS system.Rotary kiln position detecting device 10 and wheel band position detecting device 20 all are divided into two parts, movable part and standing part are approach switch, movable part is fixed in kiln body itself and each takes turns the band side, with kiln body and the rotation of wheel band, approach switch then is fixed on the appropriate location of respective activity part circular motion.Kiln body and wheel band whenever rotate a circle, and produce a position signalling.
The input interface 31 of PLC connects two checkout gears, position signalling is converted to data signal, then pass to the CPU32 of PLC, the radius of the signal that CPU gathers according to whenever rotating a circle and kiln body, wheel band, calculate respectively the kiln discharge body and take turns the speed of service of band with each, and compare the relative slippage of calculating wheel band and kiln body (CPU record kiln body and the time in wheel one week of tape travel, and calculate both differences, one week of operation relative slippage=time difference * kiln running body linear velocity).Result of calculation outputs to computer system 40 by communication interface 33.Computer system 40 shows and warning to the operator as end-user interface.
Exceed normal range (NR) then judge and block or skid if calculate the slippage result, and send the interdependent alarm signal of answering and inform the operator.
Because near the temperature kiln body and the wheel band is very high, must take necessary cooling protection measure.Cooling provision is to join water collar at approach switch, uses the water cooling protection approach switch.
The cable that rotary kiln position detecting device 10 and each wheel are used with position detecting device 20 signal transmissions adopts high temperature-resistant cable.
Utilize rotary kiln of the present utility model and wheel band real time monitoring apparatus, can obtain rotary kiln and each wheel band real-time motion speed and relative slippage, and make corresponding warning according to slippage, make the operating personnel of middle control can find timely wheel band unusual condition and take the respective handling measure.Thereby the kiln body shake lamp phenomenon that in time elimination is blocked because of the wheel band or skidded and cause, stablizing of protection refractory brick prolongs the life-span of brick, has very high promotional value.
Claims (3)
1. a rotary kiln is with the relative position real-time monitoring device with wheel, it is characterized in that: comprise that rotary kiln position detecting device, wheel are with position detecting device, based on PLC and the computer of DCS system, described rotary kiln position detecting device links to each other with the input interface of PLC respectively with position detecting device with wheel, the communication interface of PLC links to each other with computer, carries out data solver and transmission by CPU between input interface and the communication interface; Described rotary kiln position detecting device and wheel band position detecting device are divided into movable and fixing two parts, movable part is fixed in kiln body itself and each takes turns the band side, with kiln body and the rotation of wheel band, standing part is an approach switch, is fixed on really allocation of respective activity part circular motion.
2. rotary kiln according to claim 1 is with the relative position real-time monitoring device with wheel, it is characterized in that: described rotary kiln position detecting device and wheel all are furnished with water collar with the approach switch of position detecting device.
3. rotary kiln according to claim 1 and 2 is with the relative position real-time monitoring device with wheel, it is characterized in that: the cable that described rotary kiln position detecting device and each wheel are used with the position detecting device signal transmission is high temperature-resistant cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220545272 CN202853352U (en) | 2012-10-23 | 2012-10-23 | Real-time monitoring device for relative positions of rotary kilns and wheel belts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220545272 CN202853352U (en) | 2012-10-23 | 2012-10-23 | Real-time monitoring device for relative positions of rotary kilns and wheel belts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202853352U true CN202853352U (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220545272 Expired - Lifetime CN202853352U (en) | 2012-10-23 | 2012-10-23 | Real-time monitoring device for relative positions of rotary kilns and wheel belts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202853352U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105783686A (en) * | 2016-04-07 | 2016-07-20 | 高必红 | Magnetostrictive displacement detection method for kiln shell displacement deviation |
| CN108533941A (en) * | 2018-03-09 | 2018-09-14 | 漯河安润设备有限公司 | The accurate fluidic device of adjustable straight line and rotary kiln tyre lubricating fluid fluidic system |
| CN108663082A (en) * | 2018-03-29 | 2018-10-16 | 四川顺窑科技有限公司 | A kind of rotary kiln dynamic operation data acquisition device and acquisition method |
-
2012
- 2012-10-23 CN CN 201220545272 patent/CN202853352U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105783686A (en) * | 2016-04-07 | 2016-07-20 | 高必红 | Magnetostrictive displacement detection method for kiln shell displacement deviation |
| CN108533941A (en) * | 2018-03-09 | 2018-09-14 | 漯河安润设备有限公司 | The accurate fluidic device of adjustable straight line and rotary kiln tyre lubricating fluid fluidic system |
| CN108663082A (en) * | 2018-03-29 | 2018-10-16 | 四川顺窑科技有限公司 | A kind of rotary kiln dynamic operation data acquisition device and acquisition method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |
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| CX01 | Expiry of patent term |