CN1011549B - Automatic iron analyzing system - Google Patents
Automatic iron analyzing systemInfo
- Publication number
- CN1011549B CN1011549B CN 88101493 CN88101493A CN1011549B CN 1011549 B CN1011549 B CN 1011549B CN 88101493 CN88101493 CN 88101493 CN 88101493 A CN88101493 A CN 88101493A CN 1011549 B CN1011549 B CN 1011549B
- Authority
- CN
- China
- Prior art keywords
- sensor
- skeleton
- analyzing system
- microcomputer
- automatic
- 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
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The present invention relates to a system for automatically and randomly analyzing the iron content in materials, which is especially suitable for cement production or glass production. The present invention is developed by using the LC circuit resonance principle and the microcomputer technology according to physical characteristics of the materials, and is mainly composed of a signal source and a sensor; a microcomputer is shared by an automatic detection and analysis system and an automatic proportioning system; thus, the capacity of the computer is fully used, and the automatic detection and analysis system and the automatic proportioning system are formed into a whole with a very compact structure.
Description
The present invention relates to be used for measuring raw material Fe on a kind of raw material preparation process that is installed in the product lines such as cement or glass
2O
3The automatic iron analyzing system of content.
In productions such as cement or glass, the raw material preparation is crucial operation, and the content of iron composition is very big to the product quality influence in the raw material.Comparatively advanced and that generally adopt at present method is to come Fe in the raw material with light analysis technology
2O
3Analyze Deng component content.Its specific practice is raw material sampling, homogenizing, the oven dry that will prepare, the sample that takes out then about a gram is pressed into thin slice, send in the xrf analysis instrument and detect, what instrument is reflected injects computing machine calculating, compares with the corresponding electric signal of various compositions again, then revise, the ration of each material of calibration, stablize each composition in the raw material to reach, especially stablize Fe
2O
3The purpose of content.Though this detection method precision is higher, but its sampling is to carry out in the final stage of raw material preparation process, need a series of elaborate formalities just can obtain analysis result, cause the final control time of computing machine generally will lag behind more than one hour, that is to say, this method can only be made limited local detection to material, and causing is in the check and analysis process in more than this hour less, the Fe in the raw material
2O
3Content is difficult to control exactly, and the modification of data is to be interrupted to carry out, and the quality of product will be affected naturally; Moreover the required equipment of fluorescence analysis is complicated, purchases higherly with operating cost, tighter to work-yard and managerial personnel's requirement, and this popularizes this technology of employing to numerous middle-size and small-size factories certain difficulty.
The objective of the invention is in the raw material process for preparation, to carry out continuous detecting at random for the iron content of raw material for providing a kind of, at any time can revise the blanking proportional quantity fast, device structure is simple, easy and simple to handle, management for ease of maintenaince, cost and operating cost is low, accuracy of detection is high, the automatic iron analyzing system of dependable performance.
The present invention is the physical characteristics of used material when producing cement or glass and utilizes lc circuit resonance principle and micro-computer technology to develop.Its chief component is signal source, sensor and microcomputer.Sensor is to be made of LC resonator and the assembly of filtering voltage drop element.Sensor is installed in the exit of examined object material, this material in the middle of the telefault solenoid of LC resonator by the time, the Fe in the material
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3The variation of content causes that promptly inductance value changes, thereby makes the resonance frequency f of LC series resonance curve
OChange.At this moment if import the signal source of a certain fixed frequency at LC series circuit two ends, (native system is to use low frequency generator to make signal source) then lc circuit just had the inductance identification feature, as long as suitably matched L, C element, can obtain the lc circuit (the signal source internal resistance is low as far as possible) of high Q value, by Fe in the material of telefault
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3As long as content has faint variation, all can cause the skew of the inductance value of telefault.By the resonance characteristic of high-Q LC series circuit as can be known, the voltage U at the resonant capacitance two ends will have the change of big amplitude this moment.This variable quantity input microcomputer outputs signal to the proportioning materials controller by microcomputer again, but just timely modification material ration is stably controlled Fe in the raw material thereby reach
2O
3The purpose of content.
Specifically, the present invention uses equipment only to be low frequency generator and sensor separately, microcomputer be with batching controller, the automatic batching system that electronic scales, electromagnetic vibrator etc. are formed is shared, this not only can make full use of the capacity of microcomputer, and can make automatic check and analysis system and automatic batching system form the integral body that structure is more compact, thus improved the automaticity of producing, more effectively guaranteed the quality of product./ 10th of a not enough xrf analysis instrument system of its cost of this system.
Below by accompanying drawing programme of work of the present invention is described in detail:
Fig. 1 is a principle of work square frame diagrammatic sketch of the present invention;
Fig. 2 is the Fundamentals of Sensors diagrammatic sketch;
Fig. 3 is the sensor construction diagrammatic sketch;
Fig. 4 is a multichannel automatic iron analyzing system front stage circuits diagrammatic sketch.
Shown in Fig. 1, when low frequency generator (S) with fixed frequency signal input pickup (C) (one or more sensor C
1C
2C
3) after, just make the high-Q LC circuit in the sensor (C) possess the inductance identification feature.At this moment, the material that from the tube of skeleton (1) of inductive coil, flows through, its Fe
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3Content is as long as faint variation occurs, the capital causes resonant capacitance both end voltage U to go out big amplitude change, its variable quantity U goes out to import microcomputer (j), and microcomputer (j) sends instruction just for immediately batching controller (P), in time revises the ration of material.
Stable for guaranteeing that output signal voltage U goes out, can select 8 Ω lead-out terminals of XDT low frequency generator (S) for use.During practice, appropriate as long as frequency of operation is selected, just can make U go out to be proportional to the inductance value of inductive coil winding L, the inductance value of L is proportional to Fe in the material again
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3Content value.Therefore U goes out along with the variation of L inductance value to change, and the linearity of curve is preferably.
The making of sensor as shown in Figure 2, be that enameled wire with φ 0.5～1.5mm diameter turns to inductive coil (2) and tightly is placed on the external diameter with the tube of skeleton (1) of insulation (non-magnetic conduction) material, inductive coil (2) is connected with electric capacity (5), connects filtering voltage drop element (6) again.For ease of maintenance management, electric capacity (5) and filtering voltage drop element assembly (6) all are loaded in the shell (4), shell (4) hangs on tube of skeleton (1) body to draw button (3) cover, tube of skeleton (1) then is installed in the exit of examined object material, material is flow through from tube of skeleton (1) then enter batching control system.
Make the inductance identification feature good, should guarantee that then loaded Q is bigger, general Q＞40, electric capacity (5) is preferably selected oil immersion electric capacity for use.When signal voltage was 6V, resonant peak voltage can surpass 250V like this.
Potentiometer in the sensor (W) is the correcting potential device.Adjust for ease of directly perceived the correction, can adorn μ A table as proofreading and correct tracing display.The output terminal of sensor (C) can directly be connected with microcomputer (j) input terminal.
For more effectively controlling the iron content in the raw material, can also be as shown in Figure 4, adopt the multichannel automatic iron analyzing system that the various materials of being joined are detected simultaneously, convert, add up by microcomputer again, realizing unified Charge Mixture Control, but the adjustment of this multiloop loop system is comparatively complicated.
Claims (2)
1, a kind ofly is particularly suitable in cement or glass etc. are produced, detect the automatic iron analyzing system that the material iron content is used, it is made up of low frequency generator (S), sensor (C) and microcomputer (J) etc., it is characterized in that described sensor (C) is to be made of LC resonator and filtering voltage drop element group body, is installed in examined object material exit.
2, automatic iron analyzing system according to claim 1 is characterized in that, described LC resonator is made of the inductive coil and the electric capacity of mutual series connection; Described inductive coil tightly is enclosed within on the external diameter of a tube of skeleton, described capacitor and described filtering voltage drop element are contained in the shell, described outer cover suit is enclosed in wherein on described skeleton cylindrical shell and with described inductive coil, constitute described sensor, described tube of skeleton is installed in examined object material exit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88101493 CN1011549B (en) | 1988-03-17 | 1988-03-17 | Automatic iron analyzing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88101493 CN1011549B (en) | 1988-03-17 | 1988-03-17 | Automatic iron analyzing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1035894A CN1035894A (en) | 1989-09-27 |
| CN1011549B true CN1011549B (en) | 1991-02-06 |
Family
ID=4831770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88101493 Expired CN1011549B (en) | 1988-03-17 | 1988-03-17 | Automatic iron analyzing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1011549B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014107816A1 (en) * | 2013-01-14 | 2014-07-17 | Proceq Sa | Impedance-based measurement device with a two-dimensional array of coils |
-
1988
- 1988-03-17 CN CN 88101493 patent/CN1011549B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1035894A (en) | 1989-09-27 |
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