CN202306241U - Level monitoring device - Google Patents
Level monitoring device Download PDFInfo
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- CN202306241U CN202306241U CN2011204338019U CN201120433801U CN202306241U CN 202306241 U CN202306241 U CN 202306241U CN 2011204338019 U CN2011204338019 U CN 2011204338019U CN 201120433801 U CN201120433801 U CN 201120433801U CN 202306241 U CN202306241 U CN 202306241U
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- monitoring device
- module
- programmable controller
- level monitoring
- high speed
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Abstract
The utility model discloses a level monitoring device controlling a stewing cylinder of a defibrater according to a principle that a Gamma radioactive ray penetrating through a chip. It is characterized in that a receiving probe connects with a programmable controller. The programmable controller connects with a feeding spiral. The programmable controller includes a high speed counting module connecting with the receiving probe, an input module connecting with keys on the defibrater, and an output module connecting with the feeding spiral. The high speed counting module, the input module and the output module are connected to the body of the programmable controller through a bus. Compared with a prior Gamma radioactive ray level monitoring device, the level monitoring device in the utility model input a frequency signal into the programmable controller, thereby saving an intermediate analog quantity converting link. Thus, the control reliability is improved. And the level monitoring device in the utility model has a comparatively good cost performance.
Description
Technical field:
The utility model relates to a kind of monitoring material position device, particularly a kind of material level on-Line Monitor Device that penetrates the principle control defibrator boiling cylinder of wood chip according to gamma activity.
Background technology:
In the defibrator course of work, wood chip carries out boiling from the boiling cylinder that feed auger gets into HTHP, and after boiling a period of time, wood chip gets into grinding chamber body by the discharging spiral and carries out abrasive material, gets into dry workshop section of next workshop section again after wearing into fiber.Digestion time is an important technology parameter of defibrator, and digestion time has been grown, and wood chip can be too ripe, grinds fiber meeting blackening; Digestion time has been lacked, and wood chip can be too living, grinds fiber meeting chap, and the grinding machine electric current can increase.Digestion time mainly by the material level decision of feed auger, discharging spiral, boiling cylinder wood chip, therefore, needs to adopt online monitoring material position device.During existing gamma-rays monitoring material position device busy; Gamma ray radiator sends gamma-rays; Gamma-rays is detected by probe after penetrating the boiling cylinder; Probe with detected gamma-rays convert to the boiling cylinder in a certain section frequency signal that wood chip content is directly proportional, convert this frequency signal to standard analog amount signal by chromacoder then, simulated again and exported to feed auger after handling.Like this,, therefore influenced the reliability of control, gone wrong easily because there is the analog quantity conversion links in the centre.
Summary of the invention:
The purpose of the utility model provides a kind of improved monitoring material position device that penetrates the principle control defibrator boiling cylinder of wood chip according to gamma activity.
To achieve these goals; The technical scheme of the utility model is: a kind of monitoring material position device; Comprise gamma ray radiator and receiving transducer that branch is located at boiling cylinder both sides, it is characterized in that receiving transducer is connected with Programmable Logic Controller, Programmable Logic Controller is connected with feed auger.Wherein Programmable Logic Controller comprises the high speed counting module that is connected with receiving transducer; Be connected through bus between the load module that is connected with other button on the defibrator and the output module that is connected with feed auger, high speed counting module, load module and output module and Programmable Logic Controller main body.
The utility model directly is input to Programmable Logic Controller to frequency signal, has saved middle analog quantity conversion links, has improved the reliability of control, and cost performance is preferably arranged.
Description of drawings:
Fig. 1 is the synoptic diagram of the utility model
Embodiment:
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Comprise gamma ray radiator 2 and receiving transducer 1 that branch is located at boiling cylinder 8 both sides among the figure, it is characterized in that receiving transducer 1 is connected with Programmable Logic Controller 7, Programmable Logic Controller 7 is connected with feed auger 9.Wherein Programmable Logic Controller 7 comprises the high speed counting module 5 that is connected with receiving transducer 1; Be connected through bus between the load module 11 that is connected with other button on the defibrator and the output module 12 that is connected with feed auger 9, high speed counting module 5, load module 11 and output module 12 and Programmable Logic Controller main body.Detect for ease, can vertical moving frame 3 be installed in the both sides of boiling cylinder 8, gamma ray radiator 2 is installed on this vertical moving frame 3 with receiving transducer 1.Output module 12 also can be connected with display 6, so that show actual material level value.Adopt shielded cable 4 to connect between receiving transducer 1 and the high speed counting module 5, label 10 is the discharging spiral.
During work, gamma ray radiator 2 sends gamma-rays, and receiving transducer 1 detects the gamma-rays that passes boiling cylinder 8; It is changed into photoelectron, after amplifying the plate processing and amplifying, a certain section frequency signal that wood chip content is directly proportional in output and the boiling cylinder; After these frequency signals are gathered through high speed counting module 5; Handle the back by output module 12 outputs through Programmable Logic Controller 7 again, the speed of control higher level feed auger 9, and can show actual material level value through display 6.
Programmable Logic Controller with OMRON is an example now, and its hardware preparation is described.
Power module is CZOOHW.PA204 (AC200-240), and its effect is to mainframe and extension frame power supply to be provided;
Base plate is CZOOHZ-BC051, in order to fixation of C PU and other unit that constitutes the CPU frame; CPU adopts the C200HE type, and model is C200HE-CPU42-E, band RS-232 mouth;
Memory pack adopts C200HW-ME04K, is placed on the CPU, can the direct read data, do not need back-up source;
Load module DL adopts C200H-IDZ12, specification 24VDC, and 16 DC input blocks are used for inputs such as button;
Output module DO adopts C200-0C225, specification 24VDC, and 16 point relay output units are used to start feed auger and discharging spiral etc.;
Output module DA adopts C200H-DAO03, specification 4-20RN1W, and 0-10V, the analog quantity output unit is exported to feed auger, and it is given to make speed;
Output module DO adopts CZOOH-OD212, specification 0.3A, 24VDC, and display is exported in transistor output, and its model is M7F-OIDGNZ.
Claims (4)
1. monitoring material position device; Comprise gamma ray radiator and receiving transducer that branch is located at boiling cylinder both sides; It is characterized in that: receiving transducer is connected with Programmable Logic Controller, and Programmable Logic Controller is connected with feed auger, and Programmable Logic Controller comprises the high speed counting module that is connected with receiving transducer; Be connected through bus between the load module that is connected with other button on the defibrator and the output module that is connected with feed auger, high speed counting module, load module and output module and Programmable Logic Controller main body.
2. a kind of monitoring material position device as claimed in claim 1, it is characterized in that: output module also is connected with display.
3. a kind of monitoring material position device as claimed in claim 1 is characterized in that adopting between receiving transducer and the high speed counting module shielded cable to connect.
4. a kind of monitoring material position device as claimed in claim 1 is characterized in that being provided with the vertical moving frame in the both sides of boiling cylinder, and gamma ray radiator and receiving transducer are installed on this vertical moving frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204338019U CN202306241U (en) | 2011-11-05 | 2011-11-05 | Level monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204338019U CN202306241U (en) | 2011-11-05 | 2011-11-05 | Level monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202306241U true CN202306241U (en) | 2012-07-04 |
Family
ID=46375101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204338019U Expired - Fee Related CN202306241U (en) | 2011-11-05 | 2011-11-05 | Level monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202306241U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631810A (en) * | 2018-12-01 | 2019-04-16 | 河北曲寨矿峰水泥股份有限公司 | A kind of raw material abrasive material thickness testing device |
-
2011
- 2011-11-05 CN CN2011204338019U patent/CN202306241U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631810A (en) * | 2018-12-01 | 2019-04-16 | 河北曲寨矿峰水泥股份有限公司 | A kind of raw material abrasive material thickness testing device |
| CN109631810B (en) * | 2018-12-01 | 2020-11-13 | 河北曲寨矿峰水泥股份有限公司 | Raw materials abrasive material layer thickness testing arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20121105 |