CN201285385Y - Portable iron ore quality determination instrument - Google Patents

Abstract

The utility model discloses a portable grade tester for iron ore, which comprises a sensor and a host, wherein the sensor is directly in contact with the surface of iron ore to be tested for testing; the host analyzes, processes and displays detection signals of the sensor; the sensor is a linear hall sensor; the host comprises a controller connected with the sensor, and a display device controlled by the controller. The utility model has the advantages of simple structure, low cost, portability, and simple and convenient use and operation, can simply and conveniently carry out field detection for the grade of iron ore, and has rapid testing speed and higher detection precision.

Description

Portable iron ore grade analyzer

Technical field

The utility model relates to a kind of metering outfit, especially relates to a kind of portable iron ore grade analyzer.

Background technology

At present, in domestic most of minings, generally adopt the manual analysis method to detect the grade of ore, need the professional and technical personnel to carry out hand sampling and chemical examination, not only spended time is long, expense is big, and owing to think that factor affecting is bigger, thereby accuracy of detection is lower.And nowadays, domestic mensuration for the iron ore grade mainly contains following two kinds of methods: (1) chemical analysis method: as adopting the ferrous amount in the dichromate method mensuration iron ore, adopt ferrous amount in the atom spectrophotometry iron ore for another example; (2) x-ray fluorescence analysis.When adopting chemical analysis method to measure the grade of iron ore, the environment of test and tester's professional skill etc. are all had relatively high expectations, it need just can carry out in specific laboratory, and need the specialty analysis personnel to analyze titration, after the analysis titration draws the detection data, also need through correlation computations, handle and just can draw testing result, thereby operation steps complexity and accuracy of detection are not high.Adopt x-ray fluorescence analysis to measure in the process of iron ore grade, will produce a certain amount of X-ray, thereby the practical operation personnel are had certain harmfulness, and the x-ray fluorescence analysis instrument costs an arm and a leg.To sum up, above-mentioned two kinds of analysis determining methods to the iron ore grade all exist some defectives and deficiency to some extent.

The utility model content

Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of portable iron ore grade analyzer is provided, it is simple in structure, cost is low and it is easy and simple to handle to use, and can be simply and easily carry out to the iron ore grade that the scene is detected and detection speed is fast, accuracy of detection is high.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of portable iron ore grade analyzer, it is characterized in that: form by the sensor that directly detects with to the main frame that sensor institute detection signal carries out analyzing and processing and demonstration with surperficial contact of iron ore to be measured, described sensor is a linear hall sensor, and described main frame comprises controller that joins with sensor and the display of being controlled by controller.

Described controller is a chip 7106.

Described sensor is 3503 linear hall sensors, is connected to mu balanced circuit, filtering circuit and zeroing circuit between described 3503 linear hall sensors and its power supply, and described zeroing circuit and chip 7106 join.

Described mu balanced circuit is three terminal regulator 78L05.

Described main frame is made up of external shell and the circuit board that is arranged on described enclosure interior, and described controller and display are installed on the circuit board.

The T font that staff grips is convenient in being shaped as of described housing.

Described display is the LCD LCD.

The utility model compared with prior art has the following advantages, and 1, not only simple in structure, processing and fabricating is convenient; 2, unitary construction light and handy, be easy to carry, T font external shell is convenient to staff and is gripped; 3, use is easy and simple to handle, during test, only needs the direct contact measured mineral surface of sensor of the present utility model, need not wait for, can determine the grade of tested iron ore in the scene, thereby can be widely used in the scene detection of iron ore grade, have good application prospects; 4, detection speed is fast and accuracy of detection is high, it is according to the Hall effect principle, place the static current in magnetic field, when internal current direction and magnetic direction are inconsistent, current is parallel between two faces of electric current and magnetic direction and just produces Electromotive Difference Of Potential, when externally magnetic field was not too strong, Hall voltage was poor $U_H=\frac{R_H\×I\×B}{\mathrm{\δ}},$ R in the formula _HBe Hall coefficient, δ is the thickness of Hall element; Thereby, concrete principle of work of the present utility model is: when ferromagnetic material (iron ore) is subjected to the fixed magnetic field excitation, because its magnetoconductivity height, magnetic resistance is little, and the magnetic line of force all concentrates on material internal, and because iron ore grade difference (being the iron content difference), the magnetic resistance that is produced (the high more magnetic resistance of iron content is more little) difference, cause magnetic induction density B also different, keeping under the constant situation of exciting current I Hall voltage difference U _HVariation with magnetic induction density B changes, and promptly the output voltage of Hall element is with Hall voltage difference U _HVariation and produce respective change, afterwards, be that the output voltage values of sensor is converted to certain grade of ore value by controller with corresponding Hall element again, and show synchronously with the high definition LCD.

Below by drawings and Examples, the technical solution of the utility model is described in further detail.

Description of drawings

Fig. 1 is an one-piece construction synoptic diagram of the present utility model.

Fig. 2 is a schematic block circuit diagram of the present utility model.

Fig. 3 is circuit theory diagrams of the present utility model.

Description of reference numerals:

1-main frame; 2-electric wire; 3-sensor;

4-circuit board; 5-controller; 6-display.

Embodiment

As shown in Figure 1 and Figure 2, the utility model is formed by the sensor 3 that directly detects with surperficial contact of iron ore to be measured with to the main frame 1 that 3 detection signals of sensor carry out analyzing and processing and demonstration, wherein, described sensor 3 is a linear hall sensor, main frame 1 is formed by the controller 5 that joins with sensor 3 with by the display 6 that controller 5 is controlled, and 5 of sensor 3 and controllers join by electric wire 2.Simultaneously, main frame 1 is made up of external shell and the circuit board 4 that is arranged on described enclosure interior, and controller 5 and display 6 are installed on the circuit board 4.In the present embodiment, the T font that staff grips is convenient in being shaped as of described housing, and display 6 is for being installed in the LCD LCD of described housing outer surface.

In conjunction with Fig. 3, described controller 5 is a chip 7106, and sensor 3 is 3503 linear hall sensors.The 31st input port of the 3rd output chip termination 7106 of described 3503 linear hall sensors is that controller 5 transmits the voltage signal that it detected to chip 7106.Described sensor 3 is 3503 linear hall sensors, be connected to mu balanced circuit, filtering circuit and zeroing circuit between described 3503 linear hall sensors and its power supply, described zeroing circuit and chip 7106 join, and described mu balanced circuit is three terminal regulator 78L05.Specifically: the 1st and the 2nd input end of 3503 linear hall sensors connects the 3rd and the 2nd output terminal of three terminal regulator 78L05 respectively, and on the 3rd and the 2nd output terminal of three terminal regulator 78L05 and to be connected to filtering circuit be capacitor C 1 and the zeroing circuit that composed in series by potentiometer W2 and resistance R 2, the 30th input port of chip termination 7106 is regulated in the activity of potentiometer W2.The the 1st and the 26th input port of chip 7106 connects the both positive and negative polarity of power supply respectively; The the 38th and the 39th port of chip 7106 connects its 40th port respectively after capacitor C 5 and resistance R 4, be serially connected with capacitor C 4 between its 33rd and the 34th port, and its 27th, 28 and 29 port joins after capacitor C 2, resistance R 3 and capacitor C 3 respectively.The the 32nd and the 35th port of chip 7106 all connects its 1st port after potentiometer W1 and resistance R 1, the 36th port of chip termination 7106 is regulated in the activity of potentiometer W1.Corresponding respectively the 18th, 19,20,21,22,23,17,14,15,24,25,26,13,10,29,31,1 and 40,32,30,11,27 ports with the LCD LCD of the 2-18 of chip 7106,21-25 output port join, to LCD LCD data signal.

The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.

Claims (7)

1. portable iron ore grade analyzer, it is characterized in that: form by the sensor (3) that directly detects with to the main frame (1) that sensor (3) institute detection signal carries out analyzing and processing and demonstration with surperficial contact of iron ore to be measured, described sensor (3) is a linear hall sensor, and described main frame (1) comprises controller (5) that joins with sensor (3) and the display of being controlled by controller (5) (6).

2. according to the described portable iron ore grade analyzer of claim 1, it is characterized in that: described controller (5) is a chip 7106.

3. according to the described portable iron ore grade analyzer of claim 2, it is characterized in that: described sensor (3) is 3503 linear hall sensors, be connected to mu balanced circuit, filtering circuit and zeroing circuit between described 3503 linear hall sensors and its power supply, described zeroing circuit and chip 7106 join.

4. according to the described portable iron ore grade analyzer of claim 3, it is characterized in that: described mu balanced circuit is three terminal regulator 78L05.

5. according to the described portable iron ore grade analyzer of each claim in the claim 1 to 4, it is characterized in that: described main frame (1) is made up of external shell and the circuit board (4) that is arranged on described enclosure interior, and described controller (5) and display (6) are installed on the circuit board (4).

6. according to the described portable iron ore grade analyzer of each claim in the claim 5, it is characterized in that: the T font that staff grips is convenient in being shaped as of described housing.

7. according to the described portable iron ore grade analyzer of each claim in the claim 1 to 4, it is characterized in that: described display (6) is the LCD LCD.

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