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On-line ferromagnetic-particle detection system

A detection system and ferromagnetic particle technology, applied in the direction of analysis materials, instruments, etc., can solve the problems that the detection of ferromagnetic particles in powder materials cannot be realized, and achieve the effect of improving product quality

Inactive Publication Date: 2014-03-19
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcomings of the existing technology that cannot realize continuous online large-flow ferromagnetic particle detection of powder materials, and propose an online ferromagnetic particle detection system

Method used

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  • On-line ferromagnetic-particle detection system
  • On-line ferromagnetic-particle detection system
  • On-line ferromagnetic-particle detection system

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Embodiment Construction

[0049] Further illustrate the present invention below in conjunction with accompanying drawing and specific embodiment

[0050] The invention consists of a feeding mechanism and a detection system.

[0051] The feeding mechanism is composed of a driving screw servo motor 11, a uniform speed pushing screw 9, a rotating tray driving motor 5, a rotating tray 4, a tray cover 6, a discharge tapered pipe 7, a feeding pipe 8, a material supply barrel 10, Conical pipe 12 for material scraping and composition of motor seat plate 13 for installing rotary tray drive motor 5.

[0052] One end of the feed scraper cone 12 connected to the feed pipe 8 is straight, and the other end is a trumpet-shaped material cover mouth 12-2, and the radially rear side lower edge of the material cover mouth 12-2 is equipped with Material retaining arc plate 12-1.

[0053] The tray cover 6 is installed above the rotating tray 4 . The rotary tray drive motor 5 drives the rotary tray 4 to rotate, and the p...

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Abstract

The invention discloses an on-line ferromagnetic-particle detection system. The system comprises an eddy current coil (1), an infrared detector (2) used for detecting, a reference infrared detector (3), a rotary tray (4), a rotary-tray driving motor (5), a uniform-speed material-pushing screw rod (9), a driving screw-rod servo motor (11), and the like. The eddy current coil (1) and the infrared detector (2) are disposed coaxially in the opposite direction. The rotary tray (4) is installed between the eddy current coil (1) and the infrared detector (2). An alternating magnetic field is generated when the eddy current coil (1) is power on and working. Micro Fe particles in the rotary tray (4) are in the changing magnetic field. Because of electromagnetic induction, the ferromagnetic micro Fe particles can generate induced electromotive force. The ferromagnetic micro Fe particles have resistance so that the eddy current can generate heat in the ferromagnetic micro Fe particles and the temperature rises. Infrared signals are detected by the infrared detector (2), and transmitted continuously through the uniform-speed material-pushing screw rod (9) and the rotary tray (4), thus achieving on-line detection.

Description

technical field [0001] The invention relates to a ferromagnetic particle detection technology, in particular to an on-line ferromagnetic particle detection system. Background technique [0002] Ferromagnetic particle pollution in the production process of food and medicine has attracted more and more attention, especially some intravenous injection powders, once they are polluted by ferromagnetic particles produced by pharmaceutical equipment in the pharmaceutical process, the harm is very serious. [0003] With the development of micro-nano technology and the wide application of powder materials, the influence of ferromagnetic particles is prominent in many fields, and the field of ferromagnetic particle detection is becoming more and more extensive. For example, lithium iron phosphate (LiFePO 4 ) in the synthesis process, elemental iron in reducing atmosphere, such as CO, H 2 Under other atmosphere, at 500℃~700℃ by Fe 3+ [Salah A A, Mauger A, Zaghib K, et al..Reduction F...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/00
Inventor 邓梁杨文晖王铮吕行
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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