SK9494A3 - Oven for the vitrification of waste, in particular incinerator-plant and asbestos dusts - Google Patents
Oven for the vitrification of waste, in particular incinerator-plant and asbestos dusts Download PDFInfo
- Publication number
- SK9494A3 SK9494A3 SK94-94A SK9494A SK9494A3 SK 9494 A3 SK9494 A3 SK 9494A3 SK 9494 A SK9494 A SK 9494A SK 9494 A3 SK9494 A3 SK 9494A3
- Authority
- SK
- Slovakia
- Prior art keywords
- furnace according
- ladle
- cover
- melt
- furnace
- Prior art date
Links
- 239000002699 waste material Substances 0.000 title claims description 4
- 239000010425 asbestos Substances 0.000 title claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 title claims description 3
- 238000004017 vitrification Methods 0.000 title claims 2
- 239000000155 melt Substances 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 11
- 239000011241 protective layer Substances 0.000 claims description 7
- 239000002912 waste gas Substances 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 2
- 238000007654 immersion Methods 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000011521 glass Substances 0.000 description 5
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000004575 stone Substances 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/0066—Disposal of asbestos
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B3/00—Charging the melting furnaces
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/005—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture of glass-forming waste materials
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/02—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
- C03B5/027—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by passing an electric current between electrodes immersed in the glass bath, i.e. by direct resistance heating
- C03B5/0272—Pot furnaces
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/02—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
- C03B5/027—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by passing an electric current between electrodes immersed in the glass bath, i.e. by direct resistance heating
- C03B5/03—Tank furnaces
- C03B5/031—Cold top tank furnaces
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/42—Details of construction of furnace walls, e.g. to prevent corrosion; Use of materials for furnace walls
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Processing Of Solid Wastes (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
Description
Oblasť technikyTechnical field
Vynález sa týka pece na zosklovj tenie odpadov, hlavne prachov zo spaľovacích zariadení a azbestu, s panvou obsahujúcou taveninu, s krytom uloženým nad panvou, s plniacim zariadením pre vsádzku, ktorá sa má taviť a s elektródami zasahujúcimi zhora do taveniny.The invention relates to a furnace for vitrifying waste, in particular dust from incineration plants and asbestos, with a ladle containing the melt, a cover placed over the ladle, a charging device for the charge to be melted and electrodes reaching from above into the melt.
Doterajší stav technikyBACKGROUND OF THE INVENTION
Takáto pec je známa napríklad z európskeho patentového spisu č. 0 118 580 Al. Vyznačuje sa tou nevýhodou, že sa opiera v širokej miere o technológiu bežných sklárskych taviacich pecí, pozostávajúcich z cenných, a tým i veľmi drahých žiaruvzdorných materiálov. Potrebuje ďalej oceľový plášť, ktorý je chladený zvonku, v dôsledku čoho sa potrebné náklady na energiu na prevádzku pece stávajú veľmi vysoké. Známa pec má okrem toho masívnu nadstavbu, ktorá nesie komplikované vkladacie zariadenie. Celkové zariadenia sú zodpovedajúcim spôsobom nákladné, takže náklady na celkový postup zosklovitenia obkladov sú veľmi silne spoluurčované investičnými nákladmi takéhoto zariadenia a sú voči deponovaniu príliš vysoké.Such a furnace is known, for example, from European patent specification no. 0 118 580 Al. It is characterized by the disadvantage that it relies broadly on the technology of conventional glass melting furnaces consisting of valuable, and thus very expensive, refractory materials. Further, it needs a steel jacket which is cooled from the outside, which makes the energy costs necessary for the furnace operation very high. In addition, the known furnace has a massive superstructure which carries a complicated loading device. The total equipment is correspondingly expensive, so that the cost of the overall process of vitrifying the tiles is very strongly determined by the investment cost of such a device and is too high to deposit.
Vynález sa preto kladie za úlohu vytvoriť veľmi jednoduchú a s malými nákladmi vyrobíteľnú pec vyššie uvedeného druhu, ktorá by mohla byť realizovaná s malými nákladmi a mohla by tiež byť s malými nákladmi presúvaná. Ďalej si kladie za úlohu, aby pec vyžadovala čo najmenšie náklady na energiu a na údržbu.SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a very simple and low-cost furnace of the type mentioned above, which could be realized at low cost and could also be moved at low cost. Furthermore, it is intended that the furnace requires as little energy and maintenance costs as possible.
Podstata vynálezuSUMMARY OF THE INVENTION
Vyššie uvedený ciel je dosiahnutý pri peci v úvode uvedeného druhu tým, že panva je zapustená do zeme. Tým sa dosiahne mimoriadne jednoduchá a cenovo priaznivá konštrukcia pece.The above object is achieved in the furnace of the aforementioned kind by having the ladle embedded in the ground. This results in an extremely simple and cost-effective furnace design.
S výhodou pozostávajú najmenej steny panvy z ochrannej vrstvy. To je zvlášť účelné vtedy, ak zem už samotná nepozostáva z ťažko tavitelného prírodného kameňa.Preferably, at least the ladle walls consist of a protective layer. This is particularly useful when the ground itself is not made of naturally melting stone.
Ďalšie výhodné vyhotovenia pece sú definované v prvom až jedenástom patentovom nároku.Further preferred embodiments of the furnace are defined in the first to eleventh claims.
Menovite tak podlá ďalšieho znaku vynálezu v odstupoch okolo panvy sú v zemi uložené chladiace rúrky. Kryt môže byť s výhodou vytvorený ako kryt z ocelového plechu. V tomto prípade je panva s výhodou obklopená základom pre kryt z ocelového plechu. Na nastavenie vsádzkového krytu vo forme sypaného kužela, udržiavajúceho kryt z ocelového plechu v chladnom stave, môže pec ďalej obsahovať výškovo prestavitelnú strednú zavádzaciu trubicu pre vsádzku. Zavádzacia trubica je pre tento účel s výhodou teleskopický osadená na vnútornú trubicu, pričom vnútorná trubica je spojená s krytom z ocelového plechu.Namely, according to a further feature of the invention, cooling tubes are arranged at intervals around the ladle. The cover may advantageously be made of sheet steel. In this case, the ladle is preferably surrounded by a base for the sheet steel cover. To adjust the charge cone in the form of a loose cone, keeping the steel plate cover in a cold state, the furnace may further comprise a height-adjustable central insertion tube for the charge. For this purpose, the insertion tube is preferably telescopically mounted on the inner tube, the inner tube being connected to the steel sheet cover.
Podlá ďalšieho znaku vynálezu je pec na odvádzanie taveniny opatrená stúpacím kanálom s ponornou elektródou a naň sa napájajúcim prepadom. Po oboch stranách vedia stúpacieho kanálu a/alebo prepadu sú s výhodou uložené ďalšie chladiace trubice.According to a further feature of the invention, the melt removal furnace is provided with a riser channel with an immersion electrode and an overflow feeding thereto. Advantageously, additional cooling tubes are provided on both sides of the riser and / or overflow.
Pec môže byť ďalej opatrená čistiacim zariadením odpadových plynov, napojeným cez odťahový nátrubok odpadových plynov na kryt z ocelového plechu. Ďalej môže byť na povrchu krytu z ocelového plechu usporiadané prstencové vedenie na núdzové chladenie krytu z ocelového plechu.The furnace may further be provided with a waste gas scrubbing device connected through a waste gas exhaust pipe to a sheet steel cover. Furthermore, an annular conduit for emergency cooling of the sheet steel cover may be provided on the surface of the sheet steel cover.
Prehľad obrázkov na výkresochBRIEF DESCRIPTION OF THE DRAWINGS
Vynález je bližšie vysvetlený v nasledujúcom popise na príkladoch vyhotovenia s odvolaním na pripojené výkresy, v ktorých znázorňuje:The invention will be explained in more detail in the following description by way of example with reference to the accompanying drawings, in which:
obr. 1 zvislý rez pecou podľa prvého vyhotovenia vynálezu, a obr. 2 zvislý rez pecou podľa druhého vyhotovenia vynálezu.Fig. 1 shows a vertical section through a furnace according to a first embodiment of the invention, and FIG. 2 is a vertical section through a furnace according to a second embodiment of the invention.
Príklady vyhotovenia vynálezuDETAILED DESCRIPTION OF THE INVENTION
Podľa obr. 1 pozostáva pec z panvy 2 zapustenej do zeme 3 na vhodnom vybranom mieste. Táto panva 1 je na bočných stenách a v dolnej vodorovnej časti vnútra obložená ochrannou vrstvou 2 zo žiaruvzdorného betónu. Namiesto žiaruvzdorného betónu je možné na tomto mieste použiť tiež ťažko taviteľný prírodný kameň, ako žulu a pod. Ak nie je takáto ochranná vrstva z geologických dôvodov potrebná, napríklad ak už samotná zem 3. pozostáva z ťažko taviteľného prírodného kameňa, môže byť panva 1 tiež len obklopená základom 2a pre nástavby. Obrysový tvar panvy 1 je s výhodou kruhový alebo mnohouhlový.According to FIG. 1, the furnace consists of a ladle 2 embedded in the ground 3 at a suitable selected location. This ladle 1 is lined on the side walls and in the lower horizontal part of the interior with a protective layer 2 of refractory concrete. Instead of refractory concrete, it is also possible to use hard-to-melt natural stone such as granite and the like here. If such a protective layer is not necessary for geological reasons, for example if the ground itself 3 consists of a naturally difficult to melt stone, the ladle 1 can also be surrounded only by the base 2a for the superstructures. The contour of the ladle 1 is preferably circular or multi-angled.
Ako strop panva 1 obsahuje jednoduchý kryt z oceľového plechu 5, pričom základ vo forme pásu 2a žiaruvzdorného betónu tvorí na okraji panvy uloženie pre kryt 5. Uprostred oceľového plechového krytu 5 je upevnená vnútorná trubica 6, na ktorej je teleskopický uložená zavádzacia trubica 7, ktorá je prostredníctvom prestavovacej tyče 8_ výškovo prestaviteľná v strede trubice 6. Do vnútornej trubice 6 hore ústí dopravná skrutkovica 9, ktorou je vsádzkový materiál, ktorý sa má taviť, dopravovaný zo zásobníka 10 do pece.As the ceiling of the ladle 1 comprises a simple sheet of steel sheet 5, the base in the form of a strip 2a of refractory concrete forms a bearing for the cover 5 at the edge of the ladle 5. In the middle of the sheet steel 5 is fixed an inner tube 6 on which a guide tube 7 is telescopically mounted. The conveyor screw 9, which is the charge material to be melted, is conveyed from the reservoir 10 to the furnace by means of the adjusting rod 8, which is height-adjustable in the center of the tube 6. The inner tube 6 opens upwards.
Kryt 5 má okrem toho odťahový nátrubok 11, vedúci k neznázornenému čistiacemu zariadeniu dymových plynov. Okrem toho kryt 5 obsahuje elektródové priechody 12, uložené sústredne okolo stredu, ktorými sú zavádzané do vnútra panvy 1 a do v nej sa nachádzajúcej taveniny 14 uhlovo prestaviteľnej elektródy 13.The cover 5 furthermore has an exhaust nozzle 11 leading to a flue gas scrubber (not shown). In addition, the cover 5 comprises electrode passages 12 arranged concentrically around the center by which they are introduced into the interior of the ladle 1 and into the melt 14 of the angularly adjustable electrode 13 therein.
Elektródy sa zvyčajným spôsobom napájajú elektrickou energiou z transformátora pece a môžu byt podlá potreby predlžované a prisúvané.The electrodes are normally supplied with power from the furnace transformer and may be extended and retracted as required.
Vsádzka je dopravnou skrutkovicou 9 zavádzaná do vnútornej trubice 6, padá smerom dole a tvorí vsádzkový kryt 18 plávajúci na tavenine 14.. Dolný koniec zavádzacej trubice 7 je výškovo prestavovaný tak, že prirodzený svahový uhol vsádzky vedie k úplnému pokrytiu povrchu taveniny 14 vo Prestavením zavádzacej trubice 7 vyššie vnútri panvy 1. môže byt hrúbka vsádzkového krytu zvýšená, a tým sa zmenšuje teplota odpadového plynu.The feed is introduced into the inner tube 6 by the transport helix 9, falls downwards and forms a charge cover 18 floating on the melt 14. The lower end of the feed tube 7 is height-adjusted such that the natural slope angle of the feed leads to complete coverage of the melt surface 14 in the feed. 3, the thickness of the charge cover may be increased, thereby reducing the temperature of the waste gas.
Aby pri poruche, ktorá by mohla viest k pretaveniu vsádzkového krytu 18., neprišlo k žiadnej príliš vysokej teplote na kryte 5, je na hornom konci krytu 5 osadené prstencové potrubie 19 osadené tryskami, takže v prípade potreby môže byt kryt 5 zhora chladený vodou. Množstvo vody môže byt pritom merané tak, že sa voda odparí skôr, ako sa dostane na dolnú čast krytu 5, v dôsledku čoho môže byt teplota kovu tvoriaceho kryt 5 udržiavaná tesne nad 100 “C.In order to prevent any excessively high temperature on the cover 5 in the event of a failure that could lead to a melting of the charge cover 18. The annular pipe 19 is fitted with nozzles at the upper end of the cover 5 so that the cover 5 can be cooled by water. The amount of water can be measured by evaporating the water before it reaches the lower part of the housing 5, so that the temperature of the metal forming the housing 5 can be kept just above 100 ° C.
V priebehu prevádzky pece sa môže za určitých okolností stat ochranná vrstva 2 netesná. Najneskôr v chladnom okolí panvy 1 však tavenina stuhne a sama sa utesní, takže nie je potrebné očakávat žiadnu ďalšiu eróziu zeme 2· Opravné práce preto nie sú potrebné.During operation of the furnace, the protective layer 2 may leak under certain circumstances. However, at the latest in the cold surroundings of ladle 1, however, the melt solidifies and seals itself so that no further earth erosion is to be expected. 2 · Repair work is therefore not necessary.
Keď je panva 1 úplne vyplnená taveninou 14., teda je predtavená, je prívod energie elektródami 13 ukončený a tavenina 14 z panvy stuhne na pevné sklenené teleso, ktoré zostane na mieste. Pretože sklenené teleso je velmi stále voči chemickým vplyvom, môže byť sklenené teleso ponechané v zemi bez nebezpečenstva pre okolie a podzemnú vodu.When the ladle 1 is completely filled with the melt 14, that is, it is pre-melted, the energy supply through the electrodes 13 is terminated and the ladle melt 14 solidifies on a solid glass body which remains in place. Since the glass body is very permanently resistant to chemical influences, the glass body can be left in the ground without danger to the environment and groundwater.
Relatívne ľahký kryt 5 so zariadeniami 6,7,8, 9 a 10 pre prívod vsádzky môže byť po úplnom roztavení obsahu panvy 1 veľmi rýchlo demontovaný, takže pec môže hlavne pri sanačných opatreniach pôdy sledovať postup práce.The relatively light cover 5 with the feed devices 6, 7, 8, 9 and 10 can be dismantled very quickly after the contents of the ladle 1 have completely melted, so that the furnace can observe the work progress, especially in soil remediation measures.
Podlá obr. 2 pozostáva tu znázornená pec z panvy 1 ležiacej v zemi 2· Táto panva je tu vyložená ochrannou vrstvou 2. zo žiaruvzdorného betónu len na bočných stenách. Na kruhovom oblúku, ktorý má s výhodou vzdialenosť cca lm od vnútornej hrany panvy 1, sú vyvŕtané cca 2 m hlboké otvory, do ktorých sú vsadené chladiace trubice 4.· Tieto chladiace trubice 4. sú plnené vodou a sú s výhodou zapojené sériovo. Slúžia na chladenie zeme 2 v okolí panvy 1, aby zabránili taveniu zeme 2·Referring to FIG. 2, the furnace shown here consists of a ladle 1 lying in the ground 2. This ladle is lined here with a protective layer 2 of refractory concrete only on the side walls. On a circular arc, which is preferably approximately 1 m from the inner edge of the ladle 1, approximately 2 m deep holes are drilled into which the cooling tubes 4 are inserted. These cooling tubes 4 are filled with water and are preferably connected in series. They serve to cool the ground 2 around the ladle 1 to prevent the ground 2 from melting ·
Ako kryt má panva 1 tiež kryt 5 z ocelového plechu, pričom ako oporné uloženia pre kryt 5 slúžia nadzemné konce chladiacich trubíc 4_ a pričom opäť tvoria pás 2a zo žiaruvzdorného betónu na okraji pece uloženia pre kryt 5. Inak zodpovedajú kryty 5 a na nich uložené časti 6 až 13 častiam z príkladu vyhotovenia podlá obr. 1 a je možné preto odkázať na im zodpovedajúci popis pri tomto príklade.The ladle 1 also has a sheet metal cover 5 as a cover, with the above-ground ends of the cooling tubes 4 serving as supporting receptacles for the cover 5 and again forming a refractory concrete strip 2a at the edge of the furnace for the cover 5. 6 to 13 of the embodiment of FIG. 1 and it is therefore possible to refer to the corresponding description in this example.
Na rozdiel od pece z obr. 1 je pri peci z obr. 2 prídavné umiestnený výstup pre odvod taveniny. Výstup je tvorený priechodom 15 a stúpacím kanálom 16 , ktorý prechádza do prepadu 17. Stúpací kanál 16 je vykurovaný ponornou elektródou 13 *, ktorá je elektricky zapojená proti jednej z elektród 13 v panve 1.In contrast to the furnace of FIG. 1 is the furnace of FIG. 2 an additionally located outlet for melt removal. The outlet is formed by a passage 15 and a riser channel 16 which passes into the overflow 17. The riser channel 16 is heated by a dip electrode 13 *, which is electrically connected against one of the electrodes 13 in the ladle 1.
Aby sa zaručila dlhá životnosť priechodu 12, stúpacieho kanálu 16 a prepadu 1_7, sú na všetkých vonkajších stranách stúpacieho kanála 16 inštalované chladiace trubice 4 1 . Odvádzaná tavenina preteká cez prepad na doskový pás 20 a je ním dopravovaná nahor. Pritom tavenina tuhne na malé sklenené telieska, ktoré sú napríklad ďalej použiteľné ako štrk alebo prísada do betónu.To ensure long life of the passage 12, the riser duct 16 and overflow 1_7, are all external sides of the riser duct 16 installed in the cooling tube 4 is first The melt being discharged flows through the overflow onto the plate web 20 and is conveyed upwards. In this case, the melt solidifies into small glass bodies, which are, for example, further usable as gravel or concrete additive.
Ak sa dá vzhľadom na zloženie vsádzky, ktorá sa má taviť, očakávať vrstva sulfátovej peny, môže byť pec opatrená druhým výtokom vo forme jednoduchého odpichového kanála vo výške povrchu taveniny 14 buď súbežne s prepadom taveniny alebo na inom mieste panvy 1.If a sulphate foam layer is expected due to the composition of the batch to be melted, the furnace may be provided with a second outlet in the form of a simple tapping channel at the surface of the melt 14 either concurrently with the melt overflow or elsewhere in the ladle 1.
V priebehu prevádzky pece sa môže pri d'lhšej dobe prevádzky stať, ochranná vrstva 2 s postupom času netesnou. Najneskôr v blízkosti chladiacich trubíc £ však tavenina stuhne, takže nie je nutné očakávať žiadnu ďalšiu eróziu zeme 3.· Opravné práce sú preto potrebné nanajvýš na výstupe.During the operation of the furnace, the protective layer 2 may leak over time over a longer period of operation. However, at the latest in the vicinity of the cooling tubes, the melt solidifies, so that no further erosion of the ground 3 is to be expected. Repair work is therefore required at the outlet at most.
Je zrejmé, že náklady na investície a opravy vyššie popísaných pecí sú podstatne nižšie ako u doposiai známych pecí, takže pomocou vynálezu sú vytvorené cenovo priaznivé a ekologicky šetrné možnosti zosklovitenia odpadov.It is clear that the cost of investing and repairing the furnaces described above is substantially lower than that of the prior art furnaces, so that the invention provides cost-effective and environmentally friendly waste glassing options.
Claims (11)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4217854A DE4217854C2 (en) | 1992-05-29 | 1992-05-29 | Furnace for vitrifying waste, in particular dust from incinerators and asbestos |
| PCT/EP1992/001686 WO1993024420A1 (en) | 1992-05-29 | 1992-07-23 | Oven for the vitrification of waste, in particular incinerator-plant and asbestos dusts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SK9494A3 true SK9494A3 (en) | 1994-06-08 |
Family
ID=6460032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SK94-94A SK9494A3 (en) | 1992-05-29 | 1992-07-23 | Oven for the vitrification of waste, in particular incinerator-plant and asbestos dusts |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0596951A1 (en) |
| CZ (1) | CZ17294A3 (en) |
| DE (1) | DE4217854C2 (en) |
| HU (1) | HUT67494A (en) |
| PL (1) | PL302306A1 (en) |
| SK (1) | SK9494A3 (en) |
| WO (1) | WO1993024420A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5443618A (en) * | 1991-12-09 | 1995-08-22 | Battelle Memorial Institute | Earth melter |
| JP2005507494A (en) * | 2001-09-25 | 2005-03-17 | アメック・キャピタル・プロジェクツ・リミテッド | Apparatus and method for vitrifying contaminated soil or waste |
| CZ201627A3 (en) * | 2016-01-22 | 2017-03-22 | Výzkumný ústav stavebních hmot, a.s. | A method of utilizing asbestos-cement waste |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69687C (en) * | G. FlEGE in Stralau, Dorfstr. 10II | Glass melting tank with air heating channels on the tank bottom | ||
| DE9518C (en) * | C. EMMEL in Hoerde (Westfalen) | Glass melting furnace with air heating | ||
| EP0118580A1 (en) * | 1983-03-15 | 1984-09-19 | Sorg GmbH & Co. KG | Electric smelt furnace for aggressive mineral products with an inclined viscosity curve |
| DE4113182C1 (en) * | 1991-04-23 | 1992-08-06 | Beteiligungen Sorg Gmbh & Co Kg, 8770 Lohr, De | Furnace for vitrifying wastes - has tank sunk into the ground and cooling pipes arranged at a distance from the tank, has simple an inexpensive construction and installation |
-
1992
- 1992-05-29 DE DE4217854A patent/DE4217854C2/en not_active Expired - Fee Related
- 1992-07-23 SK SK94-94A patent/SK9494A3/en unknown
- 1992-07-23 WO PCT/EP1992/001686 patent/WO1993024420A1/en not_active Application Discontinuation
- 1992-07-23 EP EP92916185A patent/EP0596951A1/en not_active Withdrawn
- 1992-07-23 CZ CS94172A patent/CZ17294A3/en unknown
- 1992-07-23 PL PL92302306A patent/PL302306A1/en unknown
- 1992-07-23 HU HU9400260A patent/HUT67494A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| HU9400260D0 (en) | 1994-05-30 |
| WO1993024420A1 (en) | 1993-12-09 |
| PL302306A1 (en) | 1994-07-11 |
| DE4217854A1 (en) | 1993-12-02 |
| CZ17294A3 (en) | 1995-07-12 |
| HUT67494A (en) | 1995-04-28 |
| DE4217854C2 (en) | 1995-06-22 |
| EP0596951A1 (en) | 1994-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5606925A (en) | Process for the incineration and vitrification of waste in a crucible | |
| AU729180B2 (en) | Process for the vitrification of a pulverulent material and apparatus for implementing the process | |
| CN108642237A (en) | Steelmaking equipment | |
| RU2000111547A (en) | METHOD FOR MELTING FINE-GRAIN RECEIVED BY DIRECT IRON REDUCTION IN AN ELECTRIC ARC FURNACE | |
| US5443618A (en) | Earth melter | |
| CN104676605A (en) | Plasma furnace for comprehensively treating solid and liquid wastes | |
| CN1191376C (en) | Directly smelting apparatus | |
| SK9494A3 (en) | Oven for the vitrification of waste, in particular incinerator-plant and asbestos dusts | |
| KR20010024634A (en) | Electric arc low-shaft smelting furnace with a central tube with telescopic electrodes and a sliding upper receptacle lid | |
| JP3935989B2 (en) | DC electric melting furnace for reducing molten slag production | |
| EP0615598B1 (en) | Earth melter | |
| US6221123B1 (en) | Process and apparatus for melting metal | |
| JP3073852B2 (en) | Radioactive waste melting equipment | |
| US5601427A (en) | Waste melting furnace and a method of melting wastes | |
| DE4113182C1 (en) | Furnace for vitrifying wastes - has tank sunk into the ground and cooling pipes arranged at a distance from the tank, has simple an inexpensive construction and installation | |
| CA1066563A (en) | Studded hearth | |
| JPH0730893B2 (en) | Incinerator ash melting device | |
| EP0694734A2 (en) | Method of incinerating and melting wastes and apparatus therefor | |
| JPH067007B2 (en) | Waste melting furnace slag facility | |
| JP3339419B2 (en) | Gasification and melting furnace for waste and gasification and melting method | |
| DE4310779C2 (en) | Process and device for the disposal of filter materials | |
| JP2003148716A (en) | Discharging method for waste melting furnace and device thereof | |
| CN218154222U (en) | Tilting type plasma radioactive waste gasification melting furnace | |
| JP3941526B2 (en) | Waste powder melting method and melting equipment used therefor | |
| JP3797954B2 (en) | Replacing refractories on melting furnace side walls |