CN1206635A - Technology for producing slag tray like pieces such as trough and tank like parts by utilizing waste molten steel - Google Patents
Technology for producing slag tray like pieces such as trough and tank like parts by utilizing waste molten steel Download PDFInfo
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- CN1206635A CN1206635A CN 98113707 CN98113707A CN1206635A CN 1206635 A CN1206635 A CN 1206635A CN 98113707 CN98113707 CN 98113707 CN 98113707 A CN98113707 A CN 98113707A CN 1206635 A CN1206635 A CN 1206635A
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Abstract
The present invention discloses a production process of slag ladle, tank and basin, etc. by using return molten steel or waste molten steel. Said production process is implemented by adopting such steps as making inner lining, making outer casing, baking and closing them and pouring, etc.. Its inner lining is formed from lining body, permanent insulating layer, protective layer, metal net and clay surface. Besides, a dry sand layer can be added between the permanent insulating layer and protective layer, and on the sprue hole, a waste molten steel pouring basin is added, so that it is favourable for pouring waste molten steel. Said invention can directly convert the waste molten steel into slag ladle product, not only improves field environment, but also reduces the slag ladle cost.
Description
The present invention relates to a kind ofly mainly be used in on-the-spot utilization of steel mill and melt down molten steel or waste molten steel is directly produced groove, tank like part technologies such as slag pan.Can be used for the production of parts such as slag pan, slag ladle, the surplus dish of casting.
With the slag pan is example, and at present the used slag pan of steel mill is enginerring works' casting processing under it, its technology for the system inner tube of a tyre, cover tire, baking tire, close tire, casting forms.Inside and outside tire is by thicker casting carcass and draw in the net on carcass, heat insulation layer (the thick 120mm of reaching) that the claying material forms forms.Its shortcoming is to need to be equipped with special equipment such as Sand Rolling Machine, puddle mixer, drying kiln and a large amount of multiple refractory material, accessory etc.Especially carcass oven dry need be established drying kiln, the oven dry expense is bigger, and the slag pan that finally causes being produced costs an arm and a leg about about 20,000 yuan.On-the-spot in steel-making, because big bag bleed-out, conticaster fault take place, molten steel is throwing continuously, has to cause molten steel to melt down to smelt again or waters large stretch of, heavy scrap, is accumulated in the scene, has had a strong impact on environmental sanitation, occupies the place, increases the pipe expense of transporting.Also consume a large amount of oxygen during cutting, lose a part of steel, time-consuming, directly influenced steel-making cost and business administration.
The present invention seeks to provide a kind of at above-mentioned deficiency just can utilize waste molten steel direct pouring to become groove, tank like part production technologies such as slag pan at the steel-making scene, make discarded molten steel be converted into useful similar spare parts such as slag pan, make the slag pan of production with low cost, reduce steel-making cost.
The present invention is (is example with the slag pan) of finishing like this: the slag pan production technology comprises the making inner tube of a tyre and cover tire, baking tire, closes tire, casting.It is to make carcass with steel plate or molten steel casting that the inner tube of a tyre is made, and along the carcass outer surface brick-inlaid groove of burn-oning, builds refractory brick and form permanent heat insulation layer in groove, and the wire netting of burn-oning on permanent heat insulation layer is used carcass in the floating formation of refractory clay at last.Between permanent heat insulation layer in carcass bottom and wire netting, add and build one deck refractory brick as protective layer.It also is to make carcass with steel plate or molten steel casting that cover tire is made, and at the carcass sidewall brick-inlaid groove of burn-oning, builds refractory brick and form permanent heat insulation layer in groove.Building refractory brick on carcass bottom surface and the permanent heat insulation layer again, use the outer carcass of the floating formation of refractory clay at last.
Below in conjunction with accompanying drawing the present invention is described in further detail:
Fig. 1 is the slag pan structure diagram;
Fig. 2 closes the inside and outside tire structure diagram of tire state;
Fig. 3 is that the accident steel is received stream basin structure diagram;
Fig. 4 is the structure diagram that closes inside and outside tire second embodiment of tire state.
Referring to Fig. 1, slag pan is the dovetail groove shape, its trough rim along on have for handling and turn over four gudgeons 1 of usefulness.
Referring to Fig. 2, utilize waste molten steel to produce slag pan technology and form by the following step:
(1) inner tube of a tyre is made: the inner tube of a tyre is made up of carcass 2 and heat insulation layer.Carcass 2 adopts waste steel plate to be welded by the slag pan profile, also can adopt molten steel casting to form.Heat insulation layer is made up of permanent heat insulation layer 3, wire netting 4 and floating mud face on wire netting 4.Permanent heat insulation layer 3 is made up of the refractory brick that is welded on the brick-inlaid groove 5 on the carcass 2 and build in groove.Wire netting 4 is by being welded on the some columns 6 on the brick-inlaid groove 5 and forming around the dish garden reinforcing bar that column 6 is placed.Between the permanent heat insulation layer 3 at position, carcass 2 baseplane and wire netting 4, add the protective layer 7 that one deck is made up of refractory brick or other refractory slab, to strengthen the anti-molten steel scouring ability of permanent heat insulation layer herein.On the lateral wall of carcass 2, do not establish protective layer.Fastening ear 8 is arranged on the inner tube of a tyre edge, and cast gate 9 is located at bottom in the inner tube of a tyre.
(2) cover tire is made: cover tire is made up of outer carcass 10 and heat insulation layer.The making that outer carcass 10 is made with interior carcass 2, its heat insulation layer of carcass 10 base plane is only formed by two-layer refractory brick 11 lay-ups outside.The heat insulation layer of the facial position of carcass 10 side Dou is divided into double-layer structure outside, and one deck is that permanent heat insulation layer 12 and its last layer refractory brick 13 are formed, and spreads the pug levelling on the heat insulation layer surface.Be furnished with four gudgeon tires 14 along the punishment of outer carcass 10 upper edges, do the gudgeon chamber that is shaped as casting and be communicated with by thick walled steel tube with casting chamber 18, gudgeon tire 14 promptly is the mold of gudgeon 1, again the outer matrix section of gudgeon after the casting, casting back pipe is combined into gudgeon with the body of casting, thereby have with the slag pan body and be connected reliably, increase the bonding strength of gudgeon again, not easy fracture.Around gudgeon tire 14, a gudgeon chamber 15 is arranged, the back-up sand sand cleaning gate 16 of holding concurrently is arranged on it,, abdicate the space, make things convenient for rope to be connected with hanger so that when the slag pan that taking-up is cast, emit dry sand (earth also can).Also there is a fastening ear 17 fastening ear 8 corresponding positions on the carcass upper edge and the inner tube of a tyre outside.
(3) baking tire: because of only smearing the mud face of one deck levelling on the inside and outside tire surface, be not very thick, only with the on-the-spot baking of coal gas just can, need not to be provided with special drying kiln.
(4) close tire: the inner tube of a tyre is made on the cover tire, between inside and outside tire, goes into casting chamber 18.Tight between the fastening ear 8 and 17 by 19 on bolt, and then between fastening ear 8,17, overlap upper ring cap 20, add wedge 21 stretchings.
(5) casting: referring to Fig. 3, seated connection one accident steel molten steel is received stream basin 22 on cast gate 9, in the middle of this basin cast gate 23 is arranged, and hollow pocket 24 is arranged all around, and its basin body heat insulation layer is by permanent heat insulation layer 25, and the fire brick layer 27 on dry sand 26 and dry sand upper berth constitutes.Adopt this basin structure, the molten steel that is scattered can be collected in the basin, and can not flow directly into cast gate, in order to avoid cause the generation of blocking up.On this basin, be provided with pendulum groove 33, can play the filling effect of damming, realize interrupted filling around axle 34 horizontal huntings.On this basin, also be provided with oxygen hose, be used for to the temperature raising of low temperature molten steel.The inside and outside tire that adopts this technology to make places steel-making standby near on-the-spot, meets waste molten steel and produces and promptly be used for the slag pan of casting.Inside and outside tire is simply repaired after using at every turn, and is promptly reusable.
Above-mentioned slag pan production technology is applicable to that once finishing the waste molten steel that often runs into the race leakage in the scene of casting in can not once water the sufficient casting chamber that is full of, will need to water for twice full so at interval, if adopt above-mentioned process, casting at twice, then there is armful tire phenomenon and can't takes out workpiece, for addressing the above problem, adopt following slag pan production technology (referring to Fig. 4):
(1) inner tube of a tyre is made: the protective layer 29 that has permanent heat insulation layer 3, dry sand 28, refractory brick to be paved on interior carcass whole outer surface, spreading wire netting 30 at last, to add pug floating.Wire netting 30 is brick-inlaid groove welding on a thin net and the permanent heat insulation layer 3, mainly is to prevent protective layer 29 projectioies;
(2) cover tire is made: ditto described;
(3) baking tire: ditto described;
(4) close tire: the inner tube of a tyre tips upside down on down, and cover tire tips upside down on, and other is ditto described.In the casting chamber, be provided with reinforcement 32, fuse so that will repeatedly cast;
(5) casting: respectively be provided with cast gate in the cover tire upper and lower at least, for twice casting.Repeatedly cast as need, should establish a plurality of cast gates.Pour into from a cast gate during casting, cast from another cast gate when cast next time again.For the first time after the casting, because of dry sand 28 is arranged, and can the invar hydro-thermal not expand shrinkage with the mold locking, when dividing tire, inside and outside tire can be from separation between the dry sand 28.
Advantage of the present invention is: 1, can eliminate the steel mill heap such as cheet scrap, the piece on mountain, and will Waste molten steel is converted into the products such as slag pan, and reality has increased the output of steel but also encircled around improving The border has reduced steel-making cost; 2, reduce the slag pan cost, improved Business Economic Benefit. Adopt Use this technology, inside and outside tire is made simple, and is reusable, need not prepare special equipment and baking Kiln is saved the raw material that heat insulation layer is manufactured, and smelting molten steel is cast specially, finally can fall Low cost reaches 2/3rds; 3, this craft science, reasonable. Especially can realize being interrupted casting produces Slag pan has adapted to the needs of on-site actual situations to greatest extent.
Claims (7)
1, a kind of waste molten steel that utilizes is produced groove, tank like part technologies such as slag pan, comprises the making inner tube of a tyre and cover tire, baking tire, closes tire, casting, it is characterized in that described:
(1) inner tube of a tyre is made: make carcass with steel plate or molten steel casting, along the carcass outer surface brick-inlaid groove of burn-oning, refractory brick forms permanent heat insulation layer on building in groove, the wire netting of on permanent heat insulation layer, burn-oning, use carcass in the floating formation of refractory clay at last, between permanent heat insulation layer in carcass bottom and wire netting, add and build one deck refractory brick as protective layer;
(2) cover tire is made: make carcass with steel plate or molten steel casting, at the carcass madial wall brick-inlaid groove of burn-oning, build refractory brick and form permanent heat insulation layer in groove, building refractory brick on carcass bottom surface and the permanent heat insulation layer again, use the outer carcass of the floating formation of refractory clay at last.
2, produce groove, tank like part technologies such as slag pan according to the described waste molten steel that utilizes of claim 1, it is characterized in that facing the wall and meditating in the cover tire side to go up the gudgeon chamber and be provided with and fill out the husky clear sramana of holding concurrently.
3, produce groove, tank like part technologies such as slag pan according to claim 1 or the 2 described waste molten steels that utilize, it is characterized in that the gudgeon tire is done by thick walled steel tube to be shaped as the gudgeon chamber, communicate with the casting chamber, casting back pipe is combined into gudgeon with the body of casting.
4, produce groove, tank like part technologies such as slag pan according to the described waste molten steel that utilizes of claim 3, fit the fastening ear of tire with the bolt handle after it is characterized in that closing tire, and then on fastening ear, overlap upper ring cap, add the wedge stretching.
5, produce groove, tank like part technologies such as slag pan according to the described waste molten steel that utilizes of claim 4; the inner tube of a tyre is buckled in down when it is characterized in that closing tire; cover tire is buckled in; set up one deck dry sand on the permanent heat insulation layer of inner tube of a tyre surface; spreading refractory brick on dry sand is protective layer; wire netting is spread in weldering at last, and to add pug floating, is provided with reinforcement in the casting chamber that forms between Tire ﹠ Tube.
6, produce groove, tank like part technologies such as slag pan according to claim 4 or the 5 described waste molten steels that utilize, it is characterized in that the cast gate of casting is provided with movably accident steel molten steel receipts stream basin, cast gate is arranged in the middle of this basin, hollow pocket is arranged all around, and its basin body heat insulation layer is made of the fire brick layer on permanent heat insulation layer, dry sand and dry sand upper berth.
7, produce groove, tank like part technologies such as slag pan according to the described waste molten steel that utilizes of claim 6, it is characterized in that accident steel molten steel receives the stream basin and be provided with the oxygen hose that the pendulum groove that can swing and oxygen supply heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98113707A CN1073897C (en) | 1998-01-04 | 1998-01-04 | Technology for producing slag tray like pieces such as trough and tank like parts by utilizing waste molten steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98113707A CN1073897C (en) | 1998-01-04 | 1998-01-04 | Technology for producing slag tray like pieces such as trough and tank like parts by utilizing waste molten steel |
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| Publication Number | Publication Date |
|---|---|
| CN1206635A true CN1206635A (en) | 1999-02-03 |
| CN1073897C CN1073897C (en) | 2001-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN98113707A Expired - Fee Related CN1073897C (en) | 1998-01-04 | 1998-01-04 | Technology for producing slag tray like pieces such as trough and tank like parts by utilizing waste molten steel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102935502A (en) * | 2012-10-31 | 2013-02-20 | 武汉钢铁(集团)公司 | Trunnion imbedding method of metallurgical slag pot |
| CN104226916A (en) * | 2014-09-26 | 2014-12-24 | 衡阳中钢衡重铸锻有限公司 | Casting method of slag ladle and casting mold |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034110C (en) * | 1994-05-16 | 1997-02-26 | 包钢综合企业公司第三铸造厂 | Grate cast process for hot blast stove of blast furnace |
-
1998
- 1998-01-04 CN CN98113707A patent/CN1073897C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102935502A (en) * | 2012-10-31 | 2013-02-20 | 武汉钢铁(集团)公司 | Trunnion imbedding method of metallurgical slag pot |
| CN102935502B (en) * | 2012-10-31 | 2014-10-29 | 武汉钢铁(集团)公司 | Trunnion imbedding method of metallurgical slag pot |
| CN104226916A (en) * | 2014-09-26 | 2014-12-24 | 衡阳中钢衡重铸锻有限公司 | Casting method of slag ladle and casting mold |
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| Publication number | Publication date |
|---|---|
| CN1073897C (en) | 2001-10-31 |
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