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1. CN102232231 - Method and arrangement for producing fuel cores

Amt China
Aktenzeichen/Anmeldenummer 200980148226.3
Anmeldedatum 23.11.2009
Veröffentlichungsnummer 102232231
Veröffentlichungsdatum 02.11.2011
Veröffentlichungsart A
IPC
G21C 3/42
GPhysik
21Kernphysik; Kerntechnik
CKernreaktoren
3Reaktor-Brennstoffelemente oder ihre Anordnung; Auswahl von Stoffen für die Verwendung als Reaktor-Brennstoff
42Auswahl von Stoffen zur Verwendung als Reaktorbrennstoff
G21C 3/58
GPhysik
21Kernphysik; Kerntechnik
CKernreaktoren
3Reaktor-Brennstoffelemente oder ihre Anordnung; Auswahl von Stoffen für die Verwendung als Reaktor-Brennstoff
42Auswahl von Stoffen zur Verwendung als Reaktorbrennstoff
58Fester Reaktorbrennstoff
G21C 3/62
GPhysik
21Kernphysik; Kerntechnik
CKernreaktoren
3Reaktor-Brennstoffelemente oder ihre Anordnung; Auswahl von Stoffen für die Verwendung als Reaktor-Brennstoff
42Auswahl von Stoffen zur Verwendung als Reaktorbrennstoff
58Fester Reaktorbrennstoff
62Keramischer Brennstoff
G21C 21/02
GPhysik
21Kernphysik; Kerntechnik
CKernreaktoren
21Besonders ausgebildete Geräte oder Verfahren für die Herstellung von Reaktoren oder Teilen derselben
02Herstellung von Brennstoff- oder Brüterelementen, die in nichtaktiven Gehäusen eingebaut sind
CPC
G21C 3/42
GPHYSICS
21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
CNUCLEAR REACTORS
3Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
42Selection of substances for use as reactor fuel
G21C 3/58
GPHYSICS
21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
CNUCLEAR REACTORS
3Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
42Selection of substances for use as reactor fuel
58Solid reactor fuel ; Pellets made of fissile material
G21C 3/62
GPHYSICS
21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
CNUCLEAR REACTORS
3Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
42Selection of substances for use as reactor fuel
58Solid reactor fuel ; Pellets made of fissile material
62Ceramic fuel
G21C 3/623
GPHYSICS
21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
CNUCLEAR REACTORS
3Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
42Selection of substances for use as reactor fuel
58Solid reactor fuel ; Pellets made of fissile material
62Ceramic fuel
623Oxide fuels
G21C 21/02
GPHYSICS
21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
CNUCLEAR REACTORS
21Apparatus or processes specially adapted to the manufacture of reactors or parts thereof
02Manufacture of fuel elements or breeder elements contained in non-active casings
Y02E 30/30
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
30Energy generation of nuclear origin
30Nuclear fission reactors
Anmelder Nukem Technologies GmbH
德国纽克姆技术公司
Erfinder Heit Werner
W. 海特
Kadner Martin
M. 卡德纳
Braehler Georg
G. 布拉伊勒
Froschauer Karl
K. 弗罗斯朝尔
Vertreter li yongbei yang guochi
中国专利代理(香港)有限公司 72001
中国专利代理(香港)有限公司 72001
Prioritätsdaten 102008055468 01.12.2008 DE
Titel
(EN) Method and arrangement for producing fuel cores
(ZH) 制造燃料芯核的方法和装置
Zusammenfassung
(EN)
The invention relates to a method and to an arrangement for producing spherical fuel cores and/or breeder material cores by dripping a pouring solution containing uranyl nitrate and a solution containing at least one auxiliary agent into an ammoniacal precipitation bath in order to form microspheres, aging and washing the microspheres produced in such a way in an ammonia solution, drying, and thermally treating said microspheres. In order to take into consideration the special characteristics of uranium chemistry for cores and to provide a continuous production method along with a constantly high core quality in the method, it is proposed that the microspheres from the precipitation bath be separated through a first separator and fed to the ammoniacal aging water for aging, that the contact duration of the microspheres with the liquid of the precipitation bath before being introduced into the aging water be set equally or substantially equally, that the microspheres be transferred from the aging water to a multi-stage cascade scrubber using a transfer device, wherein the microspheres are washed in the multi-stage cascade scrubber so as to be free or substantially free from ammonium nitrate and at least one auxiliary agent contained in the microspheres, and that after the microspheres are dried, the microspheres are calcinated while distributed in a monolayer during a thermal treatment.

(ZH)

本发明涉及制造球形的燃料芯核和/或燃料原料芯核的方法和装置,其做法是,滴加含有硝酸双氧铀以及至少一种辅助材料的溶液到含氨的沉淀槽中以形成微球、在氨溶液中陈化和洗涤如此产生的微球、干燥及热处理。为了在该方法中考虑用于芯核的铀化学特性并且提供在保持高芯核质量同时的连续制造方法而提出,这些微球通过第一分离器从该沉淀槽中被分离出来并且为了陈化而被送入含氨的陈化水,在被送入陈化水之前的微球接触沉淀槽液体的接触持续时间被调节为相同或基本相同的,这些微球通过传送机构从陈化水中被传递给多级的级联洗涤器,所述微球在该级联洗涤器中被洗涤掉或基本洗涤掉硝酸铵和至少一种微球所含的辅助材料,并且在微球干燥后,这些微球在热处理过程中以单层铺开方式被焙烧。