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Needle electrode current measuring device and measuring method in high-voltage electrostatic separator
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A current measurement device and high-voltage electrostatic technology are applied in the fields of electrostatic effect separation, chemical instruments and methods, and magnetic separation, etc., which can solve problems such as the inability to measure the discharge current of a single or any number of needle electrodes, so as to improve the efficiency of current measurement, Simple operation and high sorting efficiency
Active Publication Date: 2018-02-06
HEBEI UNIVERSITY
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[0004] One of the purposes of the present invention is to provide a needle electrode current measuring device in a high-voltage electrostatic separator to solve the problem that the existing current measuring device cannot measure the discharge current of a single or any number of needle electrodes
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Embodiment 1
[0028] Embodiment 1: A needle electrode current measuring device of a high-voltage electrostatic separator.
[0029] Such as Figure 1~Figure 2 As shown, the device of the present invention is mainly composed of a high-voltage power supply 1, a microammeter 4, a switch panel 11 and a needle-roller discharge device 12 and the like.
[0030] The output terminal of the high-voltage power supply 1 is connected with two parallel power lines, which are respectively the first power line 2 and the second power line 3, and the microammeter 4 is connected in series at one end of the second power line 3 near the high-voltage power supply 1, Used to measure the current value on the needle electrode 8.
[0031] The switch panel 11 is composed of several selector switches 9, and each selector switch 9 includes a first electrical connector, a second electrical connector and a movable contact, wherein the first electrical connector is connected to the first power line 2, and the second elect...
Embodiment 2
[0034] Embodiment 2: a method for measuring the needle electrode current of a high-voltage electrostatic separator.
[0035] The inventive method comprises the following steps:
[0036] a. Set the needle electrode current measuring device of the high-voltage electrostatic separator mentioned in embodiment 1.
[0037]b. Close the movable contacts of each selector switch 9 in the switch panel 11 to their respective first electrical connectors, so that all the needle electrodes 8 in the needle-roller type discharge device 12 are powered on, and then turn on the high-voltage power supply 1 , all the needle electrodes 8 produce a discharge phenomenon for the rotating roller 5 below it.
[0038] c. Select a needle electrode 8 to be tested, and use an insulating operating rod to close the movable contact of the selector switch 9 connected to the needle electrode 8 to be connected to the corresponding second electrical connector, so that the needle electrode 8 passes through a microm...
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Abstract
The invention relates to a pin electrode current measuring device and measuring method for a high-voltage electrostatic separator. The device comprises a high-voltage power supply, a microammeter, a switch board and a pin-roller type discharging device, wherein the output end of the high-voltage power supply is connected with a first power cord and a second power cord, and the microammeter is connected to the second power cord in series; the switch board is a switch aggregation composed of a plurality of selective switches, and each selective switch comprises a first electrical connector connected with the first power cord, a second electrical connector connected with the second power cord and a movable contact electrically connected with the first electrical connector or the second electrical connector in an alternative way; the pin-roller type discharging device comprises a support, a rotating roller horizontally supported on the support through a roller shaft and a plurality pin electrodes; a grounding device is arranged on the rotating roller; an insulating frame bar parallel to the roller shaft of the rotating roller is arranged at the top of the support, and the pin electrodes are fixed on the insulating frame bar; each pin electrode vertically points to the roller shaft of the rotating roller and is electrically connected with the movable contact of one selective switch.
Description
technical field [0001] The invention relates to a current measuring device and a measuring method, in particular to a needle electrode current measuring device and a measuring method in a high-voltage electrostatic separator. Background technique [0002] High-voltage electrostatic separator is mainly composed of high-voltage electrostatic generator, shell, insulating plate, material conveying plate chain, power wheel, rotating roller, discharge electrode and recovery plate chain, etc. It is used to separate the mixture of conductors and non-conductors. Electrostatic separation is a clean separation technology that will not cause serious water pollution like general industrial separation, so it is widely used in industrial mineral processing and waste treatment and other fields. The working principle of the high-voltage electrostatic separator is: when the material passes through the high-voltage electric field formed by the action of the rotating roller and the corona elect...
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