NO154738B - DEVICE FOR DRYING AND / OR STORAGE OF WELDING POWDER. - Google Patents
DEVICE FOR DRYING AND / OR STORAGE OF WELDING POWDER. Download PDFInfo
- Publication number
- NO154738B NO154738B NO834252A NO834252A NO154738B NO 154738 B NO154738 B NO 154738B NO 834252 A NO834252 A NO 834252A NO 834252 A NO834252 A NO 834252A NO 154738 B NO154738 B NO 154738B
- Authority
- NO
- Norway
- Prior art keywords
- powder
- silo
- riser
- drying
- heating device
- Prior art date
Links
- 239000000843 powder Substances 0.000 title claims description 41
- 238000001035 drying Methods 0.000 title claims description 15
- 238000003466 welding Methods 0.000 title claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000005485 electric heating Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/18—Drying solid materials or objects by processes involving the application of heat by conduction, i.e. the heat is conveyed from the heat source, e.g. gas flame, to the materials or objects to be dried by direct contact
- F26B3/22—Drying solid materials or objects by processes involving the application of heat by conduction, i.e. the heat is conveyed from the heat source, e.g. gas flame, to the materials or objects to be dried by direct contact the heat source and the materials or objects to be dried being in relative motion, e.g. of vibration
- F26B3/26—Drying solid materials or objects by processes involving the application of heat by conduction, i.e. the heat is conveyed from the heat source, e.g. gas flame, to the materials or objects to be dried by direct contact the heat source and the materials or objects to be dried being in relative motion, e.g. of vibration the movement being performed by gravity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
- F26B9/08—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers including agitating devices, e.g. pneumatic recirculation arrangements
- F26B9/082—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers including agitating devices, e.g. pneumatic recirculation arrangements mechanically agitating or recirculating the material being dried
- F26B9/085—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers including agitating devices, e.g. pneumatic recirculation arrangements mechanically agitating or recirculating the material being dried moving the material in a substantially vertical sense using conveyors or agitators, e.g. screws or augers with vertical axis, which are positioned inside the drying enclosure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Drying Of Solid Materials (AREA)
Description
Oppfinnelsen gjelder en anordning for tørking og/eller lagring av sveisepulver, omfattende en silo med oppvarmingsanordning. The invention relates to a device for drying and/or storing welding powder, comprising a silo with a heating device.
Sveisepulverets lagring i tørr tilstand og dets tørking The storage of the welding powder in a dry state and its drying
er en forutsetning for sveising av høy kvalitet. Sveisepulverets tørking og dets lagring i fuktige forhold på ar-beidsplassen utgjør et vanskelig problem, som man har forsøkt å løse bl.a. med tidligere kjente pulversiloer som er forsynt med oppvarmingsanordning for øking av siloenes temperatur opp til 300°C. I tidligere kjente pulversiloer er oppvarmingsanordningen, dvs. en elektrisk motstand, blitt plassert inne i siloen, f.eks. på bunnen og/eller delvis på veggene. is a prerequisite for high-quality welding. The drying of the welding powder and its storage in moist conditions at the workplace constitute a difficult problem, which has been attempted to be solved, among other things. with previously known powder silos which are equipped with a heating device for increasing the silo's temperature up to 300°C. In previously known powder silos, the heating device, i.e. an electrical resistance, has been placed inside the silo, e.g. on the bottom and/or partly on the walls.
Tidligere kjente pulversiloer har den ulempe at de er lite effektive og at spesielt varmen spres langsomt og ujevnt inne i siloen. Sveisepulveret, som har sandlignende beskaffenhet og er et relativt tungt og tettpakkende pulver, hindrer effektivt varmens hurtige og ensartede spredning gjennom den pul-vermengde som er blitt plassert i siloen. De siloer som an-vendes nå for tiden har temmelig stor kapasitet, f.eks. mer enn 100 kg, av hvilken grunn oppvarming av hele pulverrtTéngden som finnes i siloen til f.eks. 300°C med den vanligvis brukte oppvarmer på f.eks. 2 kw tar svært lang tid; jevn temperaturfordeling oppnås overhodet ikke i de pulversiloer som nå Previously known powder silos have the disadvantage that they are not very efficient and that in particular the heat spreads slowly and unevenly inside the silo. The welding powder, which has a sand-like nature and is a relatively heavy and densely packed powder, effectively prevents the rapid and uniform spread of heat through the amount of powder that has been placed in the silo. The silos that are used nowadays have a fairly large capacity, e.g. more than 100 kg, for which reason the heating of the entire powder mass contained in the silo to e.g. 300°C with the commonly used heater of e.g. 2 kw takes a very long time; uniform temperature distribution is not achieved at all in the current powder silos
er i bruk. is in use.
Ifølge senere undersøkelser forutsetter den fullstendige tørk-ing av sveisepulveret, som er temmelig hygroskopisk, at det burde oppvarmes til 450°C eller til og med-500°C. Tidligere kjente pulversiloer er med hensyn til konstruksjon og byg-ningsprinsipper ikke egnet til å bli varmet opp til nevnte temperaturnivå, som er blitt viktig i praksis. According to later investigations, the complete drying of the welding powder, which is rather hygroscopic, requires that it should be heated to 450°C or even -500°C. Previously known powder silos are, with regard to construction and building principles, not suitable for being heated to the aforementioned temperature level, which has become important in practice.
Foreliggende oppfinnelse har til formål å eliminere de nevnte ulemper. Spesielt har oppfinnelsen til hensikt å tilveiebringe en anordning for tørking og/eller oppbevaring av sveisepulver som er egnet for fullstendig tørking av sveisepulveret og for dets tørkeoppvarming helt opp til nivået 450 - 500°C. Videre tilsikter oppfinnelsen å tilveiebringe en pulversilo med betydelig større effektivitet enn tidligere kjente pulversiloer men som likevel er mindre i format. Videre har oppfinnelsen til formål å tilveiebringe en anordning for tørking og/eller oppvarming av sveisepulver, i hvilken anordning varmen fordeler seg jevnt over hele siloen og i hvilken ensartet temperaturfordeling oppnås raskt og effektivt. The purpose of the present invention is to eliminate the aforementioned disadvantages. In particular, the invention aims to provide a device for drying and/or storing welding powder which is suitable for complete drying of the welding powder and for its drying heating up to the level of 450 - 500°C. Furthermore, the invention aims to provide a powder silo with significantly greater efficiency than previously known powder silos but which is nevertheless smaller in size. Furthermore, the invention aims to provide a device for drying and/or heating welding powder, in which device the heat is distributed evenly over the entire silo and in which uniform temperature distribution is achieved quickly and efficiently.
Disse formål oppnås ved en anordning ifølge oppfinnelsen for tørking og/eller lagring av sveisepulver, omfattende en vertikal silo med oppvarmingsanordning, en pulverblander, såsom en blander for pulverets transportering fra siloens nedre del til den øvre del, hvilken blander består av en skrue-transportør som er plassert inne i et stigerør, hvilken skrue-transportør begynner ved siloens nedre vegg og forløper hovedsakelig til dens øvre vegg, idet oppvarmingsanordningen er anordnet i forbindelse med stigerøret, hvor det nye og karakteristiske er at det i stigerøret inngår en indre mantel og en ytre mantel hvilke mellom seg danner et sylindrisk mellomrom, idet oppvarmingsanordningen, såsom en elektrisk varmespiral, er plassert i mellomrommet. These purposes are achieved by a device according to the invention for drying and/or storing welding powder, comprising a vertical silo with a heating device, a powder mixer, such as a mixer for transporting the powder from the lower part of the silo to the upper part, which mixer consists of a screw conveyor which is placed inside a riser, which screw conveyor starts at the lower wall of the silo and extends mainly to its upper wall, the heating device being arranged in connection with the riser, where the new and characteristic thing is that the riser includes an inner jacket and a outer mantle which between them form a cylindrical space, the heating device, such as an electric heating coil, being placed in the space.
Takket være oppfinnelsen blandes pulveret som skal tørkes effektivt under tørkingen. Hermed blir temperaturfordelingen i pulveret ensartet, og varmen sprer seg gjennom blandingen raskt og effektivt overalt i materialmengden som holder på Thanks to the invention, the powder to be dried is effectively mixed during drying. In this way, the temperature distribution in the powder becomes uniform, and the heat spreads through the mixture quickly and efficiently everywhere in the amount of material that is held
å blandes. Ved anvendelse av tilstrekkelig effektivt varme-element kan temperaturen av hele den materialmengde som skal tørkes og/eller oppbevares økes til ønsket tilstrekkelig høy temperatur, helt opp til 450-500°C. Takket være transpor-tøren eller blanderen oppnås rask varmespredning i pulveret som skal tørkes og/eller oppbevares, hvorved anordningens tørkeeffekt pr. tidsenhet stiger vesentlig fra hva den var tidligere. Man kan da ta i bruk tørke- og/eller oppbevarings-anordninger for sveisepulver som er relativt mindre i format enn tidligere. to mix. By using a sufficiently effective heating element, the temperature of the entire amount of material to be dried and/or stored can be increased to the desired sufficiently high temperature, all the way up to 450-500°C. Thanks to the conveyor or mixer, rapid heat spread is achieved in the powder to be dried and/or stored, whereby the device's drying effect per unit of time rises significantly from what it was previously. You can then use drying and/or storage devices for welding powder that are relatively smaller in size than before.
Oppfinnelsen vil bli beskrevet inngående i det etterfølgende ved hjelp av et utførelseseksempel under henvisning til ved-føyede tegning, hvor Fig. 1 viser i sideriss og delvis i snitt en anordning ifølge oppfinnelsen, og Fig. 2 viser sett ovenifra samme anordning som fig. 1. På -fig. 1 ses en anordning ifølge oppfinnelsen for tørking og/eller oppbevaring av sveisepulver. I anordningen inngår en silo 1 forsynt med oppvarmingsanordning 2. Siloen 1 be-grenses av sidevegger samt øvre og nedre vegg. I siloens øvre vegg er det utformet en påfyllingsåpning 12 for innfør-ing av pulver i siloen, og en uttaksåpning 13 med stenge-organ for avtapping av pulver fra siloen er utformet ved dens nedre vegg. -Ifølge oppfinnelsen er siloen 1 forsynt med en blander, dvs. en transportør 3 for blanding av pulveret, i den viste ut-førelsesform for forflytting av pulveret fra siloens 1 nedre del til dens øvre del. I utførelsesformen som er vist på fig. 1 og 2 består transportøren 3 av en snekke- eller skrue-transportør som er innsatt i et stigerør 4. Oppvarmingsanordningen 2 er i den viste utførelsesform anordnet i forbindelse med nevnte stigerør 4, i stigerørets 4 mantel. På fig. The invention will be described in detail in the following by means of an embodiment with reference to the attached drawing, where Fig. 1 shows in side view and partly in section a device according to the invention, and Fig. 2 shows a top view of the same device as fig. 1. On -fig. 1 shows a device according to the invention for drying and/or storing welding powder. The device includes a silo 1 provided with a heating device 2. The silo 1 is limited by side walls as well as upper and lower walls. In the upper wall of the silo, a filling opening 12 is designed for the introduction of powder into the silo, and an outlet opening 13 with a closing device for draining powder from the silo is designed at its lower wall. -According to the invention, the silo 1 is provided with a mixer, i.e. a conveyor 3 for mixing the powder, in the shown embodiment for moving the powder from the lower part of the silo 1 to its upper part. In the embodiment shown in fig. 1 and 2, the conveyor 3 consists of an auger or screw conveyor which is inserted into a riser 4. In the embodiment shown, the heating device 2 is arranged in connection with said riser 4, in the casing of the riser 4. In fig.
1 er stigerøret forsynt med en spesiell rørformet indre mantel 5 og en likeledes rørformet ytre mantel 6, hvilke mellom seg danner et sylindrisk mellomrom 7, i hvilket det er innsatt en elektrisk varmespiral som utgjør oppvarmingsanordningen 2. Skruetransportøren 3 er plassert inne i røret som utgjør den indre mantel 5. Stigerøret 4 er plassert i 1, the riser is provided with a special tubular inner jacket 5 and a similarly tubular outer jacket 6, which between them form a cylindrical space 7, in which is inserted an electric heating coil which forms the heating device 2. The screw conveyor 3 is placed inside the pipe which forms the inner casing 5. The riser 4 is placed in
den nedad konisk avsmalnende silo 1 hovedsakelig vertikalt på en avstand fra siloens bunn og likeledes på avstand fra siloens øvre vegg. Skruetransportøren 3 er plassert inne i stigerøret 4 på en slik måte at den forløper i det vesentlige fra siloens bunn til i det vesentlige siloens øvre vegg. Når skruetransportøren 3 bringes i rotasjon, kommer pulveret som p.g.a. tyngdekraftvirkning har slått seg ned på siloens bunn the downwardly conically tapering silo 1 mainly vertically at a distance from the bottom of the silo and likewise at a distance from the upper wall of the silo. The screw conveyor 3 is placed inside the riser 4 in such a way that it extends essentially from the bottom of the silo to essentially the upper wall of the silo. When the screw conveyor 3 is brought into rotation, the powder which, due to gravity has settled on the bottom of the silo
i kontakt med skruetransportøren som strekker seg ned til bunnen og som begynner å forflytte pulver inn i stigerøret og videre inne i stigerøret oppad fra siloens bunn til dens øvre del. Når det har nådd frem til stigerørets øvre ende, hvor stigerørets indre mantel 5 og ytre mantel 6 er bundet sammen med en spesiell flens 9 for å hindre at pulveret kommer inn i mellomrommet 7, renner pulveret ut på stigerørets utside og videre tilbake på siloens bunn. Samtidig varmer den på-koblede oppvarmingsanordning 2 kraftig opp stigerøret 4 og dermed pulveret som er på vei oppad respektive nedad i kontakt med den indre mantel 5 og den ytre mantel 6, hvorved varmen raskt og effektivt går over fra oppvarmingsanordningen til pulveret. in contact with the screw conveyor which extends down to the bottom and which begins to move powder into the riser and further inside the riser upwards from the bottom of the silo to its upper part. When it has reached the upper end of the riser, where the inner casing 5 and outer casing 6 of the riser are tied together with a special flange 9 to prevent the powder from entering the space 7, the powder flows out onto the outside of the riser and further back onto the bottom of the silo . At the same time, the connected heating device 2 strongly heats up the riser 4 and thus the powder which is on its way upwards and downwards respectively in contact with the inner jacket 5 and the outer jacket 6, whereby the heat quickly and efficiently transfers from the heating device to the powder.
I den på fig. 1 viste utførelsesform er skruetransportørens 3 vertikalt sentriske aksel 18 lagret i siloens nedre vegg ved hjelp av lagerhuset 19 og i den øvre vegg ved hjelp av lagerhuset 20. Skruetransportøren 3 er tilkoblet en drivanord-ning, bestående av en elektrisk motor 14, over transmisjoner såsom kileremskiver 15, 16 og en kilerem 17. Siloens 1 sidevegger, øvre vegg og nedre vegg er forsynt med varmeisolasjon for å redusere varmetap. In the one in fig. 1, the vertically centric shaft 18 of the screw conveyor 3 is stored in the lower wall of the silo by means of the bearing housing 19 and in the upper wall by means of the bearing housing 20. The screw conveyor 3 is connected to a drive device, consisting of an electric motor 14, via transmissions such as V-belt pulleys 15, 16 and a V-belt 17. The silo's 1 side walls, upper wall and lower wall are provided with thermal insulation to reduce heat loss.
På fig. 2 ses påfyllingsåpningen 12 for ifylling av pulver i siloen, dvs. i rommet mellom sideveggene og stigerøret 4, In fig. 2 shows the filling opening 12 for filling powder into the silo, i.e. in the space between the side walls and the riser 4,
og for fjernelse av fuktighet fra siloen. Siloens nedre vegg er i det vesentlige lukket, dvs. fri for andre åpninger enn uttaksåpningen 13. and for removing moisture from the silo. The lower wall of the silo is essentially closed, i.e. free of openings other than the outlet opening 13.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI823989A FI73309C (en) | 1982-11-19 | 1982-11-19 | Device for drying and / or storing welding powder. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO834252L NO834252L (en) | 1984-05-21 |
| NO154738B true NO154738B (en) | 1986-09-01 |
| NO154738C NO154738C (en) | 1986-12-10 |
Family
ID=8516322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO834252A NO154738C (en) | 1982-11-19 | 1983-11-18 | DEVICE FOR DRYING AND / OR STORAGE OF WELDING POWDER. |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS59100387A (en) |
| DE (1) | DE3304269A1 (en) |
| DK (1) | DK528383A (en) |
| FI (1) | FI73309C (en) |
| FR (1) | FR2536515A1 (en) |
| GB (1) | GB2130699B (en) |
| IT (1) | IT1171048B (en) |
| NO (1) | NO154738C (en) |
| SE (1) | SE8305929L (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3617043C2 (en) * | 1985-07-05 | 1994-08-11 | Arnoldy Roman F | Feeder for use in welding and method for uniformly feeding particulate welding material |
| DE4009926A1 (en) * | 1990-03-28 | 1991-10-02 | Bolz Alfred Gmbh Co Kg | MIXED DRYER OR DEVICE FOR THE PROCESSING AND PROCESSING OF LIQUID, PASTOES, MOISTURE AND DRY PRODUCTS |
| CH686993A5 (en) * | 1993-11-12 | 1996-08-30 | Edwin Eisenegger | Process for the thermal treatment of flowable material in solid form, mixing device for its implementation and thereafter made good. |
| CN109720747B (en) * | 2018-12-20 | 2020-08-07 | 江苏中安科技服务有限公司 | Sulfur pot for sulfur production and storage |
| WO2022047682A1 (en) * | 2020-09-03 | 2022-03-10 | 安徽辣魔王食品有限公司 | Drying device for konjac flour production |
| CN113446830B (en) * | 2021-06-25 | 2022-07-22 | 安徽正阳机械科技有限公司 | High-efficient dust removal heat preservation formula circulation does not have and stirs cage grain drier |
| EP4134194A1 (en) * | 2021-08-10 | 2023-02-15 | Matair | Device for sterilisation and preservation of powdery products, such as welding flux or other materials |
| CN113716227B (en) * | 2021-11-02 | 2022-02-08 | 苏州盛曼特新材料有限公司 | Storage device for special alumina |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH267743A (en) * | 1946-05-20 | 1950-04-15 | Zack Michel | Electric arc work method and machine for implementing this method. |
| GB856947A (en) * | 1958-02-25 | 1960-12-21 | Wolseley Engineering Ltd | Improvements relating to apparatus for drying grain |
| NO143088C (en) * | 1975-09-11 | 1980-12-29 | Kobe Steel Ltd | PROCEDURE FOR POWDER COVERED PIPE WELDING. |
| DE3030574A1 (en) * | 1980-08-13 | 1982-03-11 | Martin 4905 Spenge Brand | Grain feed worm enclosed in hot air chamber - inside container for drying and/or mixing |
-
1982
- 1982-11-19 FI FI823989A patent/FI73309C/en not_active IP Right Cessation
-
1983
- 1983-02-08 DE DE19833304269 patent/DE3304269A1/en not_active Withdrawn
- 1983-03-11 FR FR8304080A patent/FR2536515A1/en active Pending
- 1983-10-28 SE SE8305929A patent/SE8305929L/en not_active Application Discontinuation
- 1983-11-14 GB GB08330353A patent/GB2130699B/en not_active Expired
- 1983-11-15 IT IT68190/83A patent/IT1171048B/en active
- 1983-11-16 JP JP58214224A patent/JPS59100387A/en active Pending
- 1983-11-18 NO NO834252A patent/NO154738C/en unknown
- 1983-11-18 DK DK528383A patent/DK528383A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| GB8330353D0 (en) | 1983-12-21 |
| SE8305929L (en) | 1984-05-20 |
| GB2130699A (en) | 1984-06-06 |
| DE3304269A1 (en) | 1984-05-24 |
| DK528383A (en) | 1984-05-20 |
| IT1171048B (en) | 1987-06-10 |
| FI823989L (en) | 1984-05-20 |
| FI73309C (en) | 1987-09-10 |
| SE8305929D0 (en) | 1983-10-28 |
| FI823989A0 (en) | 1982-11-19 |
| JPS59100387A (en) | 1984-06-09 |
| FR2536515A1 (en) | 1984-05-25 |
| FI73309B (en) | 1987-05-29 |
| NO154738C (en) | 1986-12-10 |
| NO834252L (en) | 1984-05-21 |
| IT8368190A0 (en) | 1983-11-15 |
| DK528383D0 (en) | 1983-11-18 |
| GB2130699B (en) | 1985-10-02 |
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