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Rotary-vibrating and sieving device of nuclear fuel UO2 microspheres

A technology of nuclear fuel and vibrating screen, applied in the direction of filter screen, solid separation, grid, etc., can solve the problem that the screening device cannot be screened with microspheres, etc., to reduce the content of unqualified materials, improve the output rate, The effect of increasing the effect

Active Publication Date: 2015-04-29
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The object of the present invention is to provide a nuclear fuel UO 2 The microsphere rotary vibration screening device solves the problem that the current screening device cannot be used for nuclear fuel UO 2 Microsphere Sieving Problems

Method used

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  • Rotary-vibrating and sieving device of nuclear fuel UO2 microspheres
  • Rotary-vibrating and sieving device of nuclear fuel UO2 microspheres
  • Rotary-vibrating and sieving device of nuclear fuel UO2 microspheres

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Embodiment

[0024] Such as Figures 1 to 4 The structural schematic diagram shown, the nuclear fuel UO of the present invention 2 The microsphere rotary vibration screening device includes a base 16 fixed on the ground, a vibrating body 15 is installed on the base 16, a rotating motor 11 is installed in the vibrating body 15, and on the two output shafts of the rotating motor 11, each A vibrating arm 12 is installed, and an arc-shaped counterweight 13 is installed on the vibrating arm 12. The arc-shaped counterweight 13 is a semicircular steel plate structure, and two asymmetrical position adjustment holes 17 are arranged on it. Used to produce different vibration amplitudes and vibration strengths, the lower screen frame 9, the middle screen frame 8, the upper screen frame 4, and the dust cover 2 are successively stacked on the vibrating body 15, and a feeding material is arranged on the top of the dust cover 2. Port 1, between the lower screen frame 9 and the middle screen frame 8, and...

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Abstract

The invention discloses a rotary-vibrating and sieving device of nuclear fuel UO2 (uranium dioxide) microspheres. The rotary-vibrating and sieving device comprises a substrate on which an oscillating body is installed, wherein a lower sieve frame, a middle sieve frame and an upper sieve frame are respectively provided with a discharge hole; the outside of the oscillating body is provided with a spring connected with the substrate and the bottom of the lower sieve frame, an electrical rotating machine is installed in the oscillating body, and two output shafts of the electrical rotating machine are respectively provided with an oscillating arm on which an arc counterweight block is arranged. When the arc counterweight block is applied to the rotary-vibrating and sieving device and the same as the square counterweight block, amplitude and oscillation intensity are obviously promoted according to actual measurement, and spiral motion lines can be generated on the sieve by the materials, thus the problem that the materials are accumulated on the sieve is solved, the output rate of the single machine is greatly improved about 1.5kg / hour and by 5 times.

Description

technical field [0001] The present invention relates to the research field of thermal engineering experiment of pressurized water reactor, specifically nuclear fuel UO 2 Microsphere rotary vibration screening device. Background technique [0002] UO 2 Microspheres are one of the commonly used fuel phases for dispersed fuels in research reactors and power reactors. The dispersed fuels produced by them have the characteristics of high burnup, long life and strong fission product holding capacity. For nuclear fuel UO 2 In order to reduce the radiation damage and the release of fission products, the size of the microspheres should be greater than twice the range of the fission fragments, and the specific surface area of ​​the microspheres should be as small as possible. The preferred screening process is UO 2 One of the important processes in the production of microspheres, because the nuclear fuel UO 2 The preparation of microspheres is a radioactive operation that needs t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07B1/28B07B1/42B07B1/46
CPCB07B1/284B07B1/42B07B1/4663B07B2201/04
Inventor 张亮刘锦洪尹荣才李虹潘英唐红
Owner NUCLEAR POWER INSTITUTE OF CHINA
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