CN2212013Y - Water base quantitative decarbonization white core malleable steel annealing furnace - Google Patents
Water base quantitative decarbonization white core malleable steel annealing furnace Download PDFInfo
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- CN2212013Y CN2212013Y CN 95202077 CN95202077U CN2212013Y CN 2212013 Y CN2212013 Y CN 2212013Y CN 95202077 CN95202077 CN 95202077 CN 95202077 U CN95202077 U CN 95202077U CN 2212013 Y CN2212013 Y CN 2212013Y
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- stove
- furnace
- annealing furnace
- cover
- electric furnace
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Abstract
The utility model relates to a water base quantitative decarbonization white core malleable steel annealing furnace, which is composed of more than one set of electric and gas cover type furnaces, wherein, every set is provided with two circular furnace bases and one circular electric furnace cover, and the central parts of the furnace bases are provided with exhaust pipes and cooling pipes. One side of each of the furnace bases is provided with a vaporizing pipe, and the vaporizing pipe is communicated with a lifting metering water tank out of the furnace. The electric furnaces are suitable for keeping temperature between 1000 DEG and 1100 DEG for long, the gas furnaces are suitable for preheating the temperature below 600 DEG, and quantitative decarbonization is realized via the control of the instantaneous and total flow of water. The utility model has the advantages of simple structure, low cost, electricity saving, short annealing periodicity and good mechanical property for annealed white cone malleable steel, and the utility model completely conforms to German GTW standard requirements.
Description
The utility model relates to the white core malleable iron of a kind of water base quantitative decarburization annealing furnace, belongs to the metallic substance heat treatment furnace.
At present, annealing furnace at the bottom of the domestic employing solid oxide medium car, it is that malleable steel part is packed in the annealing pot, adopts medium such as iron sand to make stopping composition, the sealing after annealing.The main drawback of this annealing furnace is that product performance are poor, and the annealing cycle is long, more than 100 hours, and the energy consumption height, production efficiency is low.
The purpose of this utility model is the shortcoming at above-mentioned prior art, and provides a kind of simple in structure, and the annealing cycle is short, and product performance are good, the white core malleable iron of the water base quantitative decarburization annealing furnace that energy consumption is lower.
The purpose of this utility model is achieved in that it is to adopt one group of above electricity, gas cover type stove, and every group has two round kiln seats, a circular Electric furnace casing, and every many group stoves can only be established a circle and give the heat cover.Electric furnace has high temperature, high furnace pressure, thermal insulation and controlled function, carries out the quantitative decarburization of malleable steel part, and year energy gas that steam stove utilizes electric furnace to discharge carries out malleable steel part and gives heat.Electric furnace be applicable to 1000-1100 ℃ often between the insulation and the thick bed of material of 500-1000mm.Steam stove is applicable to below 600 ℃ and gives heat.Quantitatively decarburization realizes by control water instantaneous delivery and total amount.Furnace gas detects can select thermometer (among Fig. 1 18) for use, according to detected result control water instantaneous delivery and total amount.
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a stove holder structure synoptic diagram.
Fig. 3 is for detaining the outside view after covering.
Fig. 4 is each stove seat vapor pipe connection diagram.
By Fig. 1-Fig. 4 as can be known, the utility model is by more than one group, the gas cover type stove is formed, every group has two round stove seats, a circular Electric furnace casing, and organizing stove can only establish a circle and give heat cover more, each round kiln seat has a stove seat shell 30, " protruding " shape pedestal 31 that is built into refractory brick is arranged in stove seat shell 30, around the pedestal 31 is sand seal groove 36, central authorities are provided with vapor pipe 15 at the stove seat, stove seat one side is provided with vaporizing tube 14, circular Electric furnace casing is by housing 1, heat-resisting thermal insulation layer 2, light fire brick layer 3 and resistive band 6 are formed, heat-resisting thermal insulation layer 2 is between housing 1 and fire brick layer 3, resistive band 6 is contained on the fire brick layer circumferential wall, support by putting brick 5 for a short time, the top is the arch top in the circular Electric furnace casing, circle is given the heat cover by housing 19, fire brick layer 21 is formed, top fire brick layer is an arch in it, between arch top and housing, be provided with thermal insulation layer 20, giving heat cover lower end one side in circle is provided with to burn and chews hole 25 and burning chews 26, be provided with flue 27 at its opposite side, the vapor pipe 15 of each stove seat is connected by valve 17 and pipeline 16, insert in the sand seal groove 36 with the lower end of giving hot over body case 19 lower end of the housing 1 of Electric furnace casing, and vaporizing tube 14 connects statoscope water-masuring box 11 by pipeline and regulated valve 12.Top at electricity, steam stove cover is provided with thermopair.
Scribble high temperature bond dope layer 4 and 22 respectively at electric bonnet inwall.
Central authorities at the stove seat are provided with volution cooling tube 32.
Be provided with guide-localization post 33 in the both sides of stove seat.
Electric furnace casing and give heat cover below both sides be provided with guide-localization cover 37.
Be respectively equipped with suspension ring 9 and 24 at Electric furnace casing and the top of giving the heat cover.
Resistive band arranging in stove is 3 groups, and top, middle part, bottom respectively are one group, and its inlet wire connects A, B or C three-phase respectively, and its outlet all is connected with contact switch outside body of heater, is star or delta connection to change it.
Among the figure, 7 are the holder angle steel, and 8 for reinforcing channel-section steel, and 10 are malleable steel part material buttress, are hollow in the middle of the material buttress, and 13 is the stove seat, and 18 is wet bulb thermometer, and 23 for reinforcing channel-section steel, and 28 is chimney, and 29 are the holder angle steel, and 34 is the charging basket pad, and 35 is heat-resistant insulation material.
The utility model is put to implement, and having built up batch is 6 tons of stoves, and the cover body substance is 9800Kg.Now put into production, rose to 1100 ℃ in 6 and a half hours, be incubated 20 hours, 34 hours annealing cycles, power consumption is 740Kwh/t.Electric furnace heats up and adopts delta connection, insulation to adopt Y-system (can produce simultaneously for 4 groups of 350KW electric furnaces as a 1000KVA transformer).Mean carbon content is 2.75% before the malleable cast iron pipe fitting shove charge, and mean carbon content is 0.304% after annealing, and decarburization is 88.9%, and mechanical property meets the standard-required of Germany (GTW) fully.
The utility model has the advantages that furnace construction is simple, cost is low, small investment, good heat insulating, economize on electricity, with short production cycle, efficient is high, only needs to detect the furnace gas humidity control water yield and carry out decarburization, and is simple to operate, easily control, body of heater is light.
Claims (7)
1, the white core malleable iron of a kind of water base quantitative decarburization annealing furnace, it is characterized in that it is by more than one group, the gas cover type stove is formed, every group has two round stove seats, a circular Electric furnace casing, and organizing stove can only establish a circle and give heat cover more, each round kiln seat has a stove seat shell 30, " protruding " shape pedestal 31 that is built into refractory brick is arranged in stove seat shell 30, around the pedestal 31 is sand seal groove 36, central authorities are provided with vapor pipe 15 at the stove seat, stove seat one side is provided with vaporizing tube 14, circular Electric furnace casing is by housing 1, heat-resisting thermal insulation layer 2, light fire brick layer 3 and resistive band 6 are formed, heat-resisting thermal insulation layer 2 is between housing 1 and fire brick layer 3, resistive band 6 is contained on the fire brick layer circumferential wall, support by putting brick 5 for a short time, the top is the arch top in the circular Electric furnace casing, circle is given the heat cover by housing 19, fire brick layer 21 is formed, top fire brick layer is an arch in it, between arch top and housing, be provided with thermal insulation layer 20, giving heat cover lower end one side in circle is provided with to burn and chews hole 25 and burning chews 26, be provided with flue 27 at its opposite side, the vapor pipe 15 of each stove seat is connected by valve 17 and pipeline 16, insert in the sand seal groove 36 with the lower end of giving hot over body case 19 lower end of the housing 1 of Electric furnace casing, vaporizing tube 14 connects statoscope water-masuring box 11 by pipeline and regulated valve 12, is provided with thermopair at the top of electric bonnet.
2, annealing furnace according to claim 1 is characterized in that scribbling high temperature bond dope layer 4 and 22 respectively at electricity, steam stove cover inwall.
3, annealing furnace according to claim 2 is characterized in that being provided with volution cooling tube 32 in the central authorities of stove seat.
4, annealing furnace according to claim 3 is characterized in that being provided with guide-localization post 33 in the both sides of stove seat.
5, annealing furnace according to claim 4, it is characterized in that Electric furnace casing and give heat cover below both sides be provided with guide-localization cover 37.
6, annealing furnace according to claim 5 is characterized in that at Electric furnace casing and gives hot top of covering being respectively equipped with suspension ring 9 and 24.
7, according to claim 1 or 6 described annealing furnaces, it is characterized in that resistive band arranging in stove is 3 groups, top, middle part, bottom respectively are one group, and its inlet wire connects A, B, C three-phase respectively, its outlet all is connected with contact switch outside body of heater, is star or delta connection to change it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95202077 CN2212013Y (en) | 1995-01-25 | 1995-01-25 | Water base quantitative decarbonization white core malleable steel annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95202077 CN2212013Y (en) | 1995-01-25 | 1995-01-25 | Water base quantitative decarbonization white core malleable steel annealing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2212013Y true CN2212013Y (en) | 1995-11-08 |
Family
ID=33855339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95202077 Expired - Fee Related CN2212013Y (en) | 1995-01-25 | 1995-01-25 | Water base quantitative decarbonization white core malleable steel annealing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2212013Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086740C (en) * | 1999-08-30 | 2002-06-26 | 王昌林 | Technology and equipment for annealing malleable iron |
| CN102788503A (en) * | 2011-05-16 | 2012-11-21 | 钱佼佼 | Heat treatment furnace |
-
1995
- 1995-01-25 CN CN 95202077 patent/CN2212013Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086740C (en) * | 1999-08-30 | 2002-06-26 | 王昌林 | Technology and equipment for annealing malleable iron |
| CN102788503A (en) * | 2011-05-16 | 2012-11-21 | 钱佼佼 | Heat treatment furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |