CN201408556Y - Novel powder delivery device used in nuclear fuel element production - Google Patents

Novel powder delivery device used in nuclear fuel element production Download PDF

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Publication number
CN201408556Y
CN201408556Y CN2009201543828U CN200920154382U CN201408556Y CN 201408556 Y CN201408556 Y CN 201408556Y CN 2009201543828 U CN2009201543828 U CN 2009201543828U CN 200920154382 U CN200920154382 U CN 200920154382U CN 201408556 Y CN201408556 Y CN 201408556Y
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CN
China
Prior art keywords
nuclear fuel
chain
conveying
novel powder
reverse wheel
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2009201543828U
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Chinese (zh)
Inventor
薛海宁
蒋涛
郑亚娟
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China Nuclear Power Engineering Co Ltd
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China Nuclear Power Engineering Co Ltd
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Application filed by China Nuclear Power Engineering Co Ltd filed Critical China Nuclear Power Engineering Co Ltd
Priority to CN2009201543828U priority Critical patent/CN201408556Y/en
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Publication of CN201408556Y publication Critical patent/CN201408556Y/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

Abstract

The utility model belongs to a powder delivery device and specifically relates to a device particularly applicable for the powder delivery of radioactive uranium compounds in the nuclear fuel elementproduction. The device comprises reverse wheels, chains connected with the reverse wheels, connecting pipes connected between the reverse wheels, a chain wheel housing arranged outside the reverse wheels, a feeding system arranged at one end of the chain wheel housing, a discharge port arranged at the other end of the chain wheel housing, and a driving device connected with a chain wheel in the position of the discharge port.

Description

Novel powder conveying device during nuclear fuel element is produced
Technical field
The utility model belongs to a kind of powder transfer device, is specifically related to a kind of device that is specially adapted to the powder conveying of the radioactive uranium compound in the nuclear fuel element production.
Background technology
In the eighties in 20th century, the industrial UF that uses 6The preparation powder of uranium dioxide mainly contains three kinds of processes, i.e. ADU method, AUC method and IDR dry method flow process.The ADU method is widely used in the world at present a kind of flouring technology.Account for 70% of light water reactor fuel for nuclear power plant element output.So far the nuclear fuel factory of many countries such as the U.S., Japan, Russia, Kazakhstan is still using, and China also adopts this technology to prepare ceramic powder of uranium dioxide.
Between comprehensive nuclear fuel element each workshop of factory and the workshop, between inner each operation in workshop and the operation, all have the uranium compound powder of a large amount of variety classeses and performance to need to carry between the operation inside.The powder conveying mode is varied, and selected delivery technology at first should satisfy outside the requirements such as transport capacity, fed distance, should consider economy, the environmental requirement of society's proposition and the reliability of device, the convenience of operation etc.
Original ADU of China and UO 2Deng uranium compound powder conveying process using is to inhale to send the formula pneumatic conveying process, actual motion for many years shows, inhales and send the formula pneumatic conveying process to have that operational throughput is little, fed distance is short, power consumption is big, pipeline is easy to wear, material is easily pulverized and granularity, stickiness and the humidity of convey materials are subjected to certain problems such as restriction.
Call for bid in room, the U.S. west AP1000 fuel assembly manufacturing technology of introducing by the three generations, the mode of movement that the ADU powder adopts is a chapelet, after online access data and a large amount of investigation, find that there are problems such as size is big, sealing is poor, conveying circuit is restricted in chapelet.
In the nuclear fuel element production technology, the most common powder conveying technology has helical feed, strength to carry and container transport at home.
The conveying of powder all is to use the artificial intermittently transportation of closed container in the nuclear fuel element production of early stage design.Because this means of transportation complex operation, powder are scattered easily, the one, cause loss of material, the 2nd, contaminated environment is so be eliminated gradually.
Worm conveyor is a kind of the most frequently used powder continuous conveying equipment.Its advantage is a simple structure, except gearing, no longer includes rotatable parts in the trough outside; Floor area is little; Sealing easily; Management, maintenance, simple to operate; Be convenient to multiple spot charging and multiple discharge.
The shortcoming of worm conveyor is: running resistance is big, and these resistances mainly are between trough and the helical blade, between helicoid and the material, between trough and the material etc.General bigger than the power consumption of other conveyor, and component wear is very fast, therefore is not suitable for carrying bulk, the big material of chiseling property of mill; Because friction is big,, therefore need to keep the certain material of granularity so material has bigger pulverization in course of conveying.Should not use this conveyor; Because each parts has bigger wearing and tearing, so this conveying equipment only is used for lower or students with moderate performance productive rate (100m 3In/h) the process, and fed distance is unsuitable oversize.And can only unidirectionally carry.
It is to be power with the air-flow that moves in pipeline that strength is carried, and is transported to the mode of a kind of convey materials of formulating the place with entering loose unpacked material in the pipeline.Pneumatic conveyer mainly contains to inhale and send two kinds of formula, pressure sending types.China begins generally to adopt to inhale from the eighties initial stage and send the formula strength to carry the uranium-bearing powder.Be characterized in: operational throughput is little, and fed distance is short, can suck material from lower, depths, stenosis, and caliber is bigger, and mixing ratio is lower, the transporting velocity height, and power consumption is big, and pipeline is easy to wear, and material is easily pulverized.
Summary of the invention
Novel powder conveying device in the nuclear fuel element production that the purpose of this utility model provides a kind ofly can solve that the operational throughput that traditional conveying device exists is little, fed distance is short, power consumption is big, pipeline is easy to wear, material is easily pulverized, the granularity of convey materials, stickiness and humidity are subjected to certain problems such as restriction.
The utility model is to realize like this, novel powder conveying device during nuclear fuel element is produced, it comprises reverse wheel, be connected with chain on the reverse wheel, connect by taking between the reverse wheel, reverse wheel is provided with the sprocket wheel shell outward, and wherein the chain hub cap of an end is provided with feed system, the chain hub cap of another end is provided with discharging opening, and the sprocket wheel at discharging opening place is connected with drive unit.
Reverse wheel with take between be connected by joint flange.
Be connected with telescopic joint in the adapter at charging aperture place.
On the chain hub cap at discharging opening place, be connected with clearing apparatus.
Advantage of the present invention is:
(1) this device can be realized the conveying and the metering of material.The material that is transferred is in air-tight state between from the import to the discharge flange all the time, and the raw material dust does not fly upward, and outlet need not be set up dust arrester, and guaranteeing in the conveying does not have dust to leak in the environment.Satisfy modern enterprise to requirement on environmental protection.
(2) compact conformation, it is little to take up room, and can level make up with vertical.Single device can realize three-dimensional the conveying.Flexible arrangement can multiple feed, the multiple spot discharging.
(3) the mechanical type circulation is carried, and tractive force is big, the filling ratio height, and the mass transport ability is big, and fed distance is far away.
(4) chain sprocket structure of You Huaing makes itself and sclerosis chain have very little wearing and tearing.Special transfer dish has the extremely low coefficient of waste and stable transport capacity.Height degree of filling has reduced the conveying chain speed, and the equipment operation wearing and tearing are little, noise is low, power consumption is little.But the conveying axis rotating, equipment can change throughput direction.
(5) material does not have internal motion basically along the pipe smooth transportation, so material is damaged few, bend carries the material particles that makes seldom to produce chip slowly.Lamination does not take place in mixture in course of conveying.
(6) except that can be used for carrying the general powder grain material, can also carry high temperature, poisonous, flammable materials.Can be during conveying to material insulation or cooling.
(7) multi-sealed, dust does not leak, and bearing is non-maintaining fully.Viewport can be installed as required, Direct observation mass transport situation.Access hole makes things convenient for plant maintenance, and cleaning guarantees that with cleaning device material reaches hygienic requirements.Retractor device guarantees to carry steadily.
Description of drawings
Fig. 1 is the novel powder conveying device front view during nuclear fuel element provided by the utility model is produced;
Fig. 2 is the novel powder conveying device vertical view during nuclear fuel element provided by the utility model is produced.
Among the figure, 1 chain hub cap, 2 tensioning system, 3 take over 4 reverse wheels, 5 chains, 6 joint flanges, 7 clearing apparatus, 8 drive units, 9 feed systems, 10 discharging openings.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done detailed description:
As depicted in figs. 1 and 2, novel powder conveying device during nuclear fuel element is produced, it comprises feed system 9, a plurality of reverse wheel 4, is stuck in clearing apparatus 7 and the drive unit 8 and the discharging opening 10 etc. of material in the chain 5 (the chain sheet is housed on the chain 5) that also thereupon rotates on the sprocket wheel 4, the adapter 3 of sealed chain, the chain hub cap 1 of sealing reverse wheel, the tensioning system 2 of regulating the chain elasticity, cleaning charging tray and the adapter.
When changing, the direction of convey materials realizes by reverse wheel 4, as required can multiple feed and multiple spot discharging.
The utility model comprises a plurality of reverse wheels 4, be connected with chain 5 on the reverse wheel 4, chain 5 is made up of the chain sheet, connect by taking over 3 between per two reverse wheels 4, reverse wheel 4 with take over 3 and be connected by joint flange 6, on each reverse wheel 4 chain hub cap 1 is installed all, as device is horizontally disposed, have feed system 9 on the chain hub cap 1 of an end therein, the chain hub cap 1 of an other end has discharging opening 10, if device wherein has feed system 9 on the chain hub cap 1 of lower end for being arranged vertically, the chain hub cap 1 of upper end has discharging opening 10, in the adapter 3 at feed system 9 places, be connected with telescopic joint 2, by the elasticity of telescopic joint 2 scalable chains 5, the sprocket wheel 4 at discharging opening 10 places is connected with drive unit 8, is connected with clearing apparatus 7 on the chain hub cap 1 simultaneously.Feed system 9 can be connected with feeding warehouse by flexible pipe, discharging opening 10 can by flexible pipe with go out feed bin and be connected.
The utility model adopts the mode of omnidistance sealing to carry out powder conveying, and the material that is transferred is in air-tight state between from the import to the discharge flange all the time, and the raw material dust does not fly upward, and outlet need not be set up dust arrester; This device is the positive displacement conveying device, can realize the conveying and the metering of material.Make device can realize level making up multidimensional trend with vertical, flexible arrangement can multiple feed, the multiple spot discharging.
According to movement requirement (level transportation or vertical transport) charging aperture and discharging opening are set, drive unit and clearing apparatus are installed in the discharging opening position.Configure chain strip transmission line speed, treat stable after, with powder to be transported through the feed system charging, material by the chain sheet promotion and and the rubbing action of tube wall move forward from discharging opening and discharge, collect in the material collecting device and get final product.At the device run duration, adjust the tightness of chain by regulating tensioning system, chain is operated steadily.

Claims (4)

1. the novel powder conveying device during nuclear fuel element is produced, it is characterized in that: it comprises reverse wheel (4), be connected with chain (5) on the reverse wheel (4), connect by taking over (3) between the reverse wheel (4), the outer sprocket wheel shell (1) that is provided with of reverse wheel (4), wherein the chain hub cap (1) of an end is provided with feed system (9), and the chain hub cap (1) of another end is provided with discharging opening (10), and the sprocket wheel (4) that discharging opening (10) is located is connected with drive unit (8).
2. the novel powder conveying device during nuclear fuel element as claimed in claim 1 is produced is characterized in that: be connected by joint flange (6) between reverse wheel (4) and adapter (3).
3. the novel powder conveying device during nuclear fuel element as claimed in claim 1 or 2 is produced is characterized in that: be connected with telescopic joint (2) in the adapter at charging aperture place (3).
4. the novel powder conveying device during nuclear fuel element as claimed in claim 1 or 2 is produced is characterized in that: be connected with clearing apparatus (7) on the chain hub cap (1) that discharging opening (10) is located.
CN2009201543828U 2009-05-22 2009-05-22 Novel powder delivery device used in nuclear fuel element production Expired - Lifetime CN201408556Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201543828U CN201408556Y (en) 2009-05-22 2009-05-22 Novel powder delivery device used in nuclear fuel element production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201543828U CN201408556Y (en) 2009-05-22 2009-05-22 Novel powder delivery device used in nuclear fuel element production

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CN201408556Y true CN201408556Y (en) 2010-02-17

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2670979C1 (en) * 2018-01-17 2018-10-26 Федеральное государственное унитарное предприятие "Горно-химический комбинат" (ФГУП "ГХК") Installation of vortex milling of mixed nuclear fuel
RU188115U1 (en) * 2018-11-15 2019-03-29 Федеральное государственное унитарное предприятие "Горно-химический комбинат" (ФГУП "ГХК") INSTALLING VORTEX MILLING MIXED NUCLEAR FUEL WITH A SHAKING BOX
RU2702621C1 (en) * 2019-02-01 2019-10-09 Федеральное государственное унитарное предприятие "Горно-химический комбинат" (ФГУП "ГХК") Device for vortex grinding of mixed nuclear fuel
RU207044U1 (en) * 2020-12-28 2021-10-07 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" VORTEX MILLING DEVICE WITH A HORIZONTAL CONTAINER POSITION IN THE MIXER

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2670979C1 (en) * 2018-01-17 2018-10-26 Федеральное государственное унитарное предприятие "Горно-химический комбинат" (ФГУП "ГХК") Installation of vortex milling of mixed nuclear fuel
RU2670979C9 (en) * 2018-01-17 2018-11-22 Федеральное государственное унитарное предприятие "Горно-химический комбинат" (ФГУП "ГХК") Installation of vortex milling of mixed nuclear fuel
RU188115U1 (en) * 2018-11-15 2019-03-29 Федеральное государственное унитарное предприятие "Горно-химический комбинат" (ФГУП "ГХК") INSTALLING VORTEX MILLING MIXED NUCLEAR FUEL WITH A SHAKING BOX
RU2702621C1 (en) * 2019-02-01 2019-10-09 Федеральное государственное унитарное предприятие "Горно-химический комбинат" (ФГУП "ГХК") Device for vortex grinding of mixed nuclear fuel
RU207044U1 (en) * 2020-12-28 2021-10-07 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" VORTEX MILLING DEVICE WITH A HORIZONTAL CONTAINER POSITION IN THE MIXER

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Granted publication date: 20100217