CN1073490C - Grinding automatic production line for uranium dioxide chip - Google Patents
Grinding automatic production line for uranium dioxide chip Download PDFInfo
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- CN1073490C CN1073490C CN98126134A CN98126134A CN1073490C CN 1073490 C CN1073490 C CN 1073490C CN 98126134 A CN98126134 A CN 98126134A CN 98126134 A CN98126134 A CN 98126134A CN 1073490 C CN1073490 C CN 1073490C
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- automatic
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- pellet
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Abstract
The present invention relates to a grinding automatic production line for a uranium dioxide chip, which is composed of a disc automatic feeder, a diamond wheel grinding device, an automatic cleaning and drying device, an appearance inspection device and an automatic disc loading device. The devices are orderly connected to form a chip grinding automatic production line. The disc automatic feeder is composed of a working disc, a mandrel, an elastic sheet, a miniature loosening motor, a feeding belt, a stock pusher, etc.; the diamond wheel grinding device comprises a front guide plate, a diamond wheel of a centreless external grinding machine and a back guide plate; the automatic cleaning and drying device is composed of a cleaning belt, a spray head, a drying belt, an oven, a cooling belt, etc.; the appearance inspection device is composed of a station interconversion mechanism, an external inspection chain, a V-shaped guide channel, a chain lever, an external inspection double bar, etc.; the automatic disc loading apparatus is composed of a stock pusher, a storage disc of a V-shaped groove, an optoelectronic receiver, a tray small hole, a transverse chain, a guide rail, etc. The automatic production line can obviously improve labor conditions, and has the advantages of high productive efficiency and stable product quality.
Description
The present invention relates to a kind of reactor fuel element process technology, particularly relate to the grinding automatic production line for uranium dioxide chip that a kind of pressurized-water reactor nuclear power plant is used.
The existing uranium dioxide pellet grinding process that is used for pressurized-water reactor nuclear power plant is to adopt manual mode, i.e. grinding machine, cleaning, oven dry, operation such as inspection and sabot warehouse-in all is manually-operateds outward.The existing problem of this manual operations is, operation is disperseed, and the mutual collision opportunity of pellet is many, and labour intensity is big, and the factor that influence product quality is many, and yield rate is low, and raw materials consumption is many, the material waste greatly, economic benefit is low.
The pellet grinding production line of Germany fuel element factory, its garden dish pay-off, pellet must be erected on the disc face when operation, could send from discharging opening; The operation of its outer checking device is with manually pellet being pushed in the middle of the check rod, and hand check rod rotation and make the pellet rotation manually pushes the finished product pellet in the check rod in the finished disk, and automaticity is not high enough.
The object of the present invention is to provide a kind of grinding automatic production line for uranium dioxide chip, this automatic assembly line automaticity height, the production efficiency height, good reliability, constant product quality, raw materials consumption is few.
A kind of grinding automatic production line for uranium dioxide chip, comprise disk automatic feeding, diamond wheel grinding device, cleaning drying device, appearance inspection device and automatic disc filling device automatically, be characterized in the disk automatic feeding by the work disk, the stationary spindle that are rotated counterclockwise, be contained in shell fragment on the stationary spindle, be contained in miniature loose motor, feeding belt, 8 font band pushers and the drive motors of deriving before the plate and form; The diamond wheel grinding device comprises skive, guide wheel and the back derivation plate of front guide, centreless grinding machine external; Automatically cleaning drying device is made up of the motor of cleaning tape, shower nozzle, drying belt, heating wire, salband and drive conveyer belt; Appearance inspection device comprise pellet station mapping device, blanking groove, outward examine chain, outward examine sprocket wheel, V-arrangement deflector chute, lever feeding distribution mechanism, chain plectrum, examine double stick outward; The automatic disc filling device is made up of pusher, V-shaped groove material storage dish, the photelectric receiver, the charging tray aperture that are located at the material storage dish top, the photoelectricity light projector that is located at charging tray aperture below, horizontal chain, guide rail etc.Disk automatic feeding, diamond wheel grinding device, automatic cleaning drying device, appearance inspection device and automatic disc filling device are connected in turn, and form the automatic assembly line of a pellet grinding.
Automatic assembly line of the present invention has following advantage:
1, the disk material loading has stationarity as the charging gear of grinding machine, can loosen automatically and falls
The characteristics of material guiding have been improved working condition, the production efficiency height significantly;
2, clean automatically, dry, adopt spring band to transfer, in the process of transferring, carry out clear fully
Wash, dry, the pellet grinding process can be carried out in order continuously;
3, V-type dish splendid attire is adopted in sabot, can carry out the sabot of pellet in order, has alleviated operator's labor
Fatigue resistance, that has reduced pellet after the grinding simultaneously beats the limit arrisdefect, has improved yield rate.
This automatic assembly line is to develop for the grinding production of 300,000 kilowatts of pressurized-water reactor nuclear power plant fuel pellets of China specially.
The present invention has following accompanying drawing:
Fig. 1 is a disk automatic feeding schematic diagram
Fig. 2 is the partial top view of Fig. 1
Fig. 3 is a diamond wheel grinding device schematic diagram
Fig. 4 is the skive structure chart
Fig. 5 is the left view of Fig. 4
Fig. 6 is automatic cleaning drying device schematic diagram
Fig. 7 is the appearance inspection device schematic diagram
Fig. 8 is an automatic disc filling device schematic diagram
Fig. 9 is the left view of Fig. 8
Figure 10 is the vertical view of Fig. 8
The present invention is described in further detail below in conjunction with drawings and Examples.
This automatic assembly line is to satisfy under the pellet grinding process prerequisite, with the automatic or auxiliary device of finishing each operation of pellet grinding process, form organic connection in proper order and transmit automatically by pellet grinding technological process, replace the manual labor of original dispersion, heaviness, become steady, continuous flow production line.It is made up of automatic feeding, diamond wheel grinding device, automatic cleaning drying device, appearance inspection device, automatic disc filling device.During production line work, start completely, each equipment mechanism, emery wheel, conveyer belt all move by the forms of motion of oneself.Qualified sintering pellet keeps in order upright spread pattern, by the disk pay-off, becomes the station (axis becomes level) that is fit to the centerless external cylindrical through feed grinding, pushes grinding machine, the diamond wheel grinding cylindrical by 8 font band pushers; Cleaning drying device cleans automatically, dries, cools off, and outer checking device launches tested pellet surface for artificial separation, picks out waste product, and the finished product pellet is sent to disc loading apparatus automatically; Push the V-arrangement material storage dish by the two-wheel pusher.When filling certain-length, the V-arrangement material storage dish moves forward lattice automatically, and that another lattice put in place is to be installed.The full charging tray of so automatic transmission is sent into the sky charging tray, finishes the sabot work of finished product pellet.
Fig. 1 is a disk automatic feeding schematic diagram.Automatic feeding is used for finishing automatically the work of vertically lining up before the pellet grinding and pushing grinding machine.Pellet to be ground enters automatic feeding through feeding platform 1, stands on the work disk 2 of rotation counterclockwise, moves with dish, pushes the disk edge to by the thrust shell fragment 3 on the disc centre fixed axis 5.Pellet on the disk edge just enters the derivation groove and derives in single file, is converted to vertical arrangement that axis becomes level when breaking away from disk, by 8 font band pushers 9 pellet is pushed grinding machine again and carries out the grinding of outer garden.
The pellet that work is not derived on the disk 2 pushes through shell fragment 3, continues to move with dish, finally reaches the disk edge and is derived.Because the spread pattern of pellet 6 on disk 2 is widely different, pellet 6 easily forms obstruction in derivation plate tip.For being blocked in, elimination a miniature loose motor 4 is housed before deriving plate.Loose motor shaft stretches to the disk working face, and perpendicular to disk, is 1mm from the disc surfaces gap, and loose motor shaft is opposite with the rotation direction of disk 2 working faces.Among Fig. 1, Fig. 2,7 are pellet after the displacement, and 8 is feeding belt, and 10 is circular housing, and 11 for deriving plate.
Fig. 3 is a diamond wheel grinding device schematic diagram.Adopt silicon carbide grinding wheel in the former grinding process process of fuel pellet manufacturing, can satisfy production requirement basically, but it is fast to exist the emery wheel abrasion, the fluctuation of pellet outside dimension is big, is easy to cause and beats the limit arrisdefect, influences product quality.Per tour all needs trimming wheel 1-2 time when producing, and feed is frequent.The cooling waste liquid is many, and solid slag is many in the waste liquid, and the silicone content height makes the metal recovery difficulty, the cost recovery height.After adopting skive in the automatic assembly line, remedied above-mentioned deficiency.Product quality, production efficiency are improved, Gu slag reduces and simplified recovery process.Economic benefit obviously improves.
Adopt the M1040 centreless grinding machine external in the pellet grinding automatic production line.
The specification and the technical parameter of M1040 Cylindrical Centerless Grinding skive:
Specification: JR
280YQ100 PSA 300*125*127*10*5
Technical parameter:
Inlet chamfering---0.5: 50 (millimeter)
Outlet chamfering---0.25: 25 (millimeter)
Gross weight---27 (kilograms)
Inside and outside circle concentricity≤0.005
The two sides depth of parallelism≤0.005
End face and axle perpendicularity≤0.005
Among Fig. 3,12 is front guide, and 13 is skive, and 14 is guide wheel, and 15 is that plate is derived in the back, and 16 is supporting plate, and 17 are core grinding piece not, and 18 are core grinding piece.Fig. 4, Fig. 5 are the structure chart of skive, and among the figure, 11 is aluminum substrate, and 50 is the copper hoop, and 51 is diamond layer.
Automatically the schematic diagram of cleaning drying device is seen Fig. 6.
This device is the cleaning in the pellet grinding process, two operations of oven dry to be combined in finish the automatic mechanism that cleans with oven dry on the device in order automatically.As shown in Figure 6, it (is a cleaning tape 21 by two groups of double Ф 2 and one group of double Ф 10CY2 wire spring band, leak be with 23 and salband 28) with clean formations such as shower nozzle 22, oven dry casing 25, oven dry heat source resistor silk 26, and composition cleans, dries, cools off three sections, (three sections of the left, center, right among Fig. 6) in order.Three spring transport tapes are done with the speed motion by a driven by motor, and linear velocity is 1.5 meters/minute.During work, grinding machine exports the piece of core grinding 20 that 19 places come, enter earlier cleaning tape 21 reposefully, flushing during by cleaning shower nozzle 22, pass to drying belt 24 again, enter baking oven 25 oven dry, go out to pass to salband 28 again behind the drying baker and carry out the nature cooling, enter the station converter of outer checking device then, in order to visual examination.
In order not make the rinse water muddiness, adopted the cyclic water tank of big volume.The water yield can be regulated during use.22 in shower nozzle is with less apopore, so rinse water has bigger pressure, is beneficial to and cleans up and the amount of conserving water.Bake out temperature can be regulated (100～380 ℃) in a big way at one.Baking oven is except that having protection, insulation, and the top in exit also is added with wind pumping channle, is beneficial to improve drying effect and dosage protection.Among Fig. 6,27 is suction opeing.
The appearance inspection device schematic diagram is seen Fig. 7.Outer checking device in the pellet grinding transfer matic is the tested surface of a kind of automatic expansion pellet, for the auxiliary body of artificial outward appearance sorting.The course of work and principle be as shown in Figure 7: the pellet that is sent by automatic cleaning drying device, be introduced into the pellet station mapping device 30 of outer checking device, become in its blanking groove 31 upper ends and to be fit to the outer station of examining, again by the plectrum shifting lever feeding distribution mechanism 35 on the outer inspection chain 34, open the distribution block of blanking groove lower end, single ground divides to go in the preceding V-arrangement deflector chute 32 of outer inspection double stick, the chain plectrum 36 that is passed through from its intermediate gap is stirred, enter and do on the homodromal outer inspection double stick 33, supported by double stick 33, make pellet under chain plectrum 36 is stirred, do in the axial horizontal rectilinear motion, driven to do at a slow speed by double stick 33 again and rotate from the heart, launch tested surface for artificial outer inspection, the waste product pellet picks into collecting in the waste product hopper.The transmission that the finished product pellet is constantly dialled in the automatic disc filling device by chain plectrum 36 is taken and is carried out sabot.Among Fig. 7,36 is pellet to be checked, and 37 for stablizing shell fragment, and 38 is outer inspection sprocket wheel.
Fig. 8, Fig. 9, Figure 10 are automatic disc filling device schematic diagram.Consider all needs such as the transportation of finished product pellet and tubulature operation, pellet grinding transfer matic manufactures a finished product and adopts V-shaped groove material storage dish 47, carries out orderly splendid attire and storage.Material storage dish 47 is by 0.7 millimeter corrosion resistant plate press forming, and slot pitch is 15.87 one millimeters, totally 18 lattice, and physical dimension is the 520*290 millimeter.End fixed length at each lattice has 5*2 millimeter aperture 44, as the signaling point of pack into the quantity and the photoelectric controller of pellet.Photoelectricity light projector 45 is placed in V-arrangement dish aperture 44 belows, and optoelectronic receiver 43 is placed in V-arrangement dish top.During work, recipient 43 takes out signal, inputs to sequence circuit and goes to control sabot by the instruction action.The work of automatic disc filling device such as Fig. 8, Fig. 9, shown in Figure 10, earlier first lattice of the V-arrangement charging tray 47 that places are aimed at 39 outlets of two-wheel pusher, at this moment blank panel is to be installed, aperture 44 logical light, disc loading apparatus main transmission chain 41 is slack, two-wheel pusher 39 two-wheels have the rotation of level run in the same way as working face, whole disc loading apparatus is in running order, pellet is stirred by outer inspection chain plectrum and is entered the sabot conveyer belt and introduce pusher 39, push in the V-arrangement hopper of V-arrangement material storage dish 47, when being pushed into certain-length, the pellet 49 of packing into is blocked when leading to light aperture 44, and pusher 39 quits work, sabot main transmission chain 41 is reach one lattice automatically, it is to be installed that another lattice are put in place, the logical again light of aperture 44, and the action of one-period restarts.
During 41 motions of disc loading apparatus main transmission chain, pusher 39 quits work, and does not quit work but examine plectrum outward, this is because the conveyer belt of sabot pusher is longer, certain middle reserves are arranged, and it can regulate the feed line speed between stream oriented device, helps improving production efficiency completely.Among Fig. 8, Figure 10,40 is support body, and 42 is guide rail, and 46 is the V-arrangement plectrum, and 48 for being close to magneto, and 49 is pellet.
This automatic assembly line uses skive, and workpiece size is stable, and the tolerance dispersiveness is little, allowance within 0.3 millimeter, the workpiece of a grinding forming, presentation quality all reaches and has surpassed the requirement of technical standard.The speed that pellet advances on automatic assembly line, to disc loading apparatus, Ying Yijie is faster slightly than a joint, otherwise will cause and get stuck from the disk pay-off.The linear velocity of each device of automatic assembly line is:
0.8 meter/minute of disk pay-off
1.5 meters/minute of grinding attachments
1.5 meters/minute of cleaning drying devices
3 meters/minute of appearance inspection devices
3 meters/minute in automatic disc filling device
Clean with oven dry and should adopt different transmission speeds, oven dry is drawn back certain distance slightly faster than cleaning by speed official post pellet, promptly pursues spacing is arranged to enter in the drying baker to dry, and makes pellet pursue the station mapping device that a ground enters outer checking device.
Claims (5)
1, a kind of grinding automatic production line for uranium dioxide chip, comprise disk automatic feeding, diamond wheel grinding device, cleaning drying device, appearance inspection device and automatic disc filling device automatically, it is characterized in that the disk automatic feeding by the work disk (2) that is rotated counterclockwise, stationary spindle (5), be contained in shell fragment (3) on the stationary spindle (5), be contained in and derive preceding miniature loose motor (4), feeding belt (8), 8 font band pushers (9) and the drive motors of plate (11) and form; The diamond wheel grinding device comprises front guide (12), be not in the mood for gold hand hay cutter stone sand wheel (13), guide wheel (14) and the back derivation plate (15) of outer circular end grinding machine; Automatically cleaning drying device is made up of the motor of cleaning tape (21), shower nozzle (22), drying belt (24), baking oven (25), heating wire (26), salband (28) and drive conveyer belt; Appearance inspection device comprise pellet station mapping device (30), blanking groove (31), outward examine chain (34), drive outer inspection sprocket wheel (38) that outer inspection chain (34) moves, be located at V-arrangement deflector chute (32), lever feeding distribution mechanism (35) before the outer inspection double stick, stir pellet and make the chain plectrum (36) of axial horizontal rectilinear motion, make homodromal outer inspection double stick (33); The automatic disc filling device is made up of pusher (39), V-shaped groove material storage dish (47), the photelectric receiver (43), the charging tray aperture (44) that are located at the material storage dish top, the photoelectricity light projector (46) that is located at charging tray aperture below, horizontal chain (41), guide rail (42) etc., disk automatic feeding, diamond wheel grinding device, automatic cleaning drying device, appearance inspection device and automatic disc filling device are connected in turn, and form the automatic assembly line of a pellet grinding.
2, automatic assembly line as claimed in claim 1, the shaft extension that it is characterized in that eliminating the loose motor (4) of ponding is coiled working face to the garden, and perpendicular to garden dish (2), dish (2) surface gap is 1mm from the garden, and loose motor shaft is opposite with the direction of rotation of garden dish (2) working face.
3, automatic assembly line as claimed in claim 1 or 2 is characterized in that cleaning tape (21), leak band (23) and salband (28) be by two groups of double Ф 2 and one group of double Ф 10CY
2The wire spring band constitutes; Shower nozzle (22) is provided with less apopore, is beneficial to clean up and the amount of conserving water, and the bake out temperature of baking oven (25) is 100-380 ℃, and baking oven (25) top, exit is added with wind pumping channle.
4, automatic assembly line as claimed in claim 3, it is characterized in that material storage dish (47) is by 0.7 millimeter corrosion resistant plate press forming, slot pitch is 15.87 millimeters, totally 18 lattice, physical dimension is: the 520*290 millimeter has 5*2 millimeter aperture (44) in an end fixed length of each lattice, as the signaling point of pack into the quantity and the photoelectric controller of pellet.
5, automatic assembly line as claimed in claim 4 is characterized in that the linear velocity of each device of automatic assembly line is: 0.8 meter/minute of disk pay-off; 1.5 meters/minute of grinding attachments; 1.5 meters/minute of cleaning drying devices; 3 meters/minute of appearance inspection devices; 3 meters/minute in automatic disc filling device cleans with oven dry and should adopt different transmission speeds, and oven dry is slightly faster than cleaning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98126134A CN1073490C (en) | 1998-12-25 | 1998-12-25 | Grinding automatic production line for uranium dioxide chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98126134A CN1073490C (en) | 1998-12-25 | 1998-12-25 | Grinding automatic production line for uranium dioxide chip |
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| Publication Number | Publication Date |
|---|---|
| CN1234319A CN1234319A (en) | 1999-11-10 |
| CN1073490C true CN1073490C (en) | 2001-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98126134A Expired - Fee Related CN1073490C (en) | 1998-12-25 | 1998-12-25 | Grinding automatic production line for uranium dioxide chip |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759967B (en) * | 2015-04-06 | 2017-04-26 | 南京林恒机械制造有限公司 | Double-groove grinding device of core rod |
| CN106273155B (en) * | 2016-08-30 | 2019-02-19 | 重庆凯龙科技有限公司 | Thermal insulation board process integration mechanism |
| CN107999460A (en) * | 2017-12-18 | 2018-05-08 | 苏州市锐翊电子科技有限公司 | A kind of automatic cleaning system |
| CN108249149B9 (en) * | 2017-12-28 | 2020-01-21 | 中核北方核燃料元件有限公司 | UO2Automatic blanking device for grinding core blocks |
| CN110842745A (en) * | 2019-12-11 | 2020-02-28 | 江苏宏宝工具有限公司 | Automatic polishing device of screwdriver |
| CN112743417A (en) * | 2020-12-11 | 2021-05-04 | 安徽涌诚机械有限公司 | Full-automatic casting surface treatment equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US403767A (en) * | 1889-05-21 | Pipe-coupling |
-
1998
- 1998-12-25 CN CN98126134A patent/CN1073490C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US403767A (en) * | 1889-05-21 | Pipe-coupling |
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| CN1234319A (en) | 1999-11-10 |
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Granted publication date: 20011024 Termination date: 20141225 |
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