CN103468845B - Blast furnace slag discharge trench with built-in water cooling system - Google Patents
Blast furnace slag discharge trench with built-in water cooling system Download PDFInfo
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- CN103468845B CN103468845B CN201310407060.0A CN201310407060A CN103468845B CN 103468845 B CN103468845 B CN 103468845B CN 201310407060 A CN201310407060 A CN 201310407060A CN 103468845 B CN103468845 B CN 103468845B
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Abstract
The invention relates to a blast furnace slag discharge trench with a built-in water cooling system, which is basically composed of a cast steel slag trench body, a water inlet pipe, a water outlet pipe, a stainless steel corrugated pipe and a valve, wherein a cooling water pipe is formed by bending a seamless steel pipe; the cast steel slag trench is provided with a water inlet end and a water outlet end which are respectively connected with the water inlet pipe and the water outlet pipe; and the stainless steel corrugated pipe, valve and water inlet and outlet pipes constitute a loop. Finally, the whole slag trench is divided into a plurality of units which are connected in parallel. The valve can be utilized to implement independent opening or closing, maintenance and replacement of a certain unit. In the slag discharge trench system, heat in the slag in the slag trench is taken away by the circulating water flow in the cooling water pipe, so that the slag is solidified on the cooler surface to form a slag shell; since the heat-conducting property of the slag is low, the slag on the cooler surface is always unfused under the action of cooling water, thereby protecting the cast steel cooler; and under such conditions, the slag becomes a working lining like a refractory material.
Description
Technical field
The present invention relates to a kind of tap cinder ditch with embedded water cooling system used in technical field of blast furnace ironmaking.
Background technology
Tap cinder ditch is an important device in blast furnace casting platform, general use refractory material laying forms, its Main Function born in blast furnace ironmaking be for major groove slag sluicing system before State of Blast Furnace after oxidation white residue (hereinafter referred to as slag) trickling conveying, slag is delivered to sluice by major groove, dry slag runner and dry slag chute, but because slag Minerals composition is very complicated, its main component is silicon-dioxide, in addition containing various metals and nonmetal oxide etc., so general refractory castable is not fine for supporting anti-scour property, also be difficult to realize good effect simply by raising refractory materials class or change refractory materials composition.
When the trickling of high-temperature liquid state slag is to colder body surface, can solidify formation skull, simultaneously due to the thermal conductivity that slag is lower, as long as so cold junction temperature can distribute in time, the skull that this layer is formed just is difficult to be melted, and the body surface that adhesion is always colder.
Summary of the invention:
The object of the invention is the tap cinder ditch providing a kind of cast steel structure, realizes the normal use of slag runner without the need to using refractory materials.
The object of the invention is to be achieved through the following technical solutions:
With a tap cinder ditch for embedded water cooling system, it is characterized in that: be instead of tap cinder ditch with refractory material laying by the tap cinder ditch of embedded water cooling system.
Tap cinder ditch is made up of in a row side by side several cast steel slag ditch body; Cast steel slag ditch body is an inner cast steel body for cavity, is embedded with water-cooled tube in the cavities; The water-in of water-cooled tube and water outlet are connected respectively to outside water inlet pipe and rising pipe.
Described water inlet pipe and rising pipe are connected each via the water-in of feed-water end corrugated stainless steel tubing and water side corrugated stainless steel tubing and water-cooled tube and water outlet.
Each monolithic cast steel slag ditch body all connects a feed-water end corrugated stainless steel tubing and a water side corrugated stainless steel tubing, so then in units of each monolithic cast steel slag ditch body, define one by one independently cooling water recirculation system in parallel.
The present invention is in use because water flowing in water cooler possesses the ability of heat absorption; slag can form solid-state skull when contacting steel casting surface; protection cast steel slag ditch, in substance form the working lining that one deck is made up of slag, instead of traditional slag runner refractory materials.
The present invention by water cooling slag runner system realize slag runner low refractory consumption, lowly safeguard labour intensity, its manufacturing cost is lower, long service life, without the need to consuming refractory materials.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention.
Fig. 2 is the structural representation of monolithic cast steel slag ditch body.
In figure:
1. cast steel slag ditch body, 2. water inlet pipe, 3. rising pipe, 4. feed-water end corrugated stainless steel tubing, 5. water side corrugated stainless steel tubing, 6. valve, 7. water-cooled tube.
Embodiment
See Fig. 1, the present invention is a kind of tap cinder ditch with embedded water cooling system, is made up of in a row side by side several cast steel slag ditch body 1.In cast steel slag ditch body 1 both sides, be respectively equipped with a water inlet pipe 2 and a rising pipe 3.Again see Fig. 2, cast steel slag ditch body 1 is an inner cast steel body for cavity, is embedded with the round bendable water-cooled tube 7 that weldless steel tube is made in the cavities.Water-cooled tube 7 has a water-in and a water outlet, and water-in and water outlet lay respectively at the both sides of cast steel slag ditch body 1.Described water inlet pipe 2 and rising pipe 3 are connected each via the water-in of feed-water end corrugated stainless steel tubing 4 and water side corrugated stainless steel tubing 5 and water-cooled tube 7 and water outlet.Each monolithic cast steel slag ditch body 1 all connects a feed-water end corrugated stainless steel tubing 4 and a water side corrugated stainless steel tubing 5, so then in units of each monolithic cast steel slag ditch body 1, define one by one independently cooling water recirculation system in parallel.Current flow into feed-water end corrugated stainless steel tubing 4 from water inlet pipe 2, enter 1 water side corrugated stainless steel tubing 5 again through cast steel slag ditch body 1, then enter rising pipe 3 and discharge.
Between water inlet pipe 2 and each feed-water end corrugated stainless steel tubing 4, and between rising pipe 3 and each water side corrugated stainless steel tubing 5, be all equipped with valve 6, to control the cooling water flow in cast steel slag ditch body 1, and meet the needs of handling and maintenance.Can by the independent open and close controlling single hop cast steel slag ditch internal recycle current of valve 6.
Cast steel slag ditch body 1, when making, is first made the water-cooled tube 7 of shape as shape in Fig. 2 by modes such as heating bendings, is then put into hollow mold, inject liquid molten steel, then cooling curing, forms cast steel slag ditch body 1 as shown in Figure 2.
Before installation, be transported to blast furnace platform after being made by water cooler body, in original slag runner groove, clean out correct position, put into cast steel slag ditch body 1, and according to Fig. 1 the device such as structure installment water pipe, valve.Water in water inlet pipe 2 can use the water in high cooling water inlet pipe, is entered the rising pipe of circulation water of blast furnace after circulation by rising pipe 3 again.Also water inlet pipe can be accessed sluice water pipe, and the water after circulation is entered in sluice.Also independently water pump and cooling tower can be used to realize the independent loops of water coolant, and do not rely on blast-furnace cooled water system or sluice water circulation system.Open each position valve 6 after having connected and namely complete installation.Have water circulation to flow during use in steel casting cavity several cast steel slag ditch body 1 is as shown in Figure 2 placed side by side, be connected to water inlet pipe 2 and rising pipe 3 respectively respectively by feed-water end corrugated stainless steel tubing 4, water side corrugated stainless steel tubing 5, valve 6, form one-piece construction as shown in Figure 1.
Using constantly can according to slag runner length many groups connection, and cast steel slag ditch body 1 surface directly can contact iron-smelting blast-furnace slag.Blast furnace ironmaking slag can form on cast steel slag ditch surface the skull be frozen into by slag.Cast steel slag ditch due to the existence of water-cooled without the need to using refractory materials as common group of liner of slag runner.
Claims (2)
1. with a tap cinder ditch for embedded water cooling system, it is characterized in that: be instead of tap cinder ditch with refractory material laying by the tap cinder ditch of embedded water cooling system; It is made up of in a row side by side several cast steel slag ditch body (1); Cast steel slag ditch body (1) is an inner cast steel body for cavity, is embedded with water-cooled tube (7) in the cavities; The water-in of water-cooled tube (7) and water outlet are connected respectively to outside water inlet pipe (2) and rising pipe (3); Described water-cooled tube (7) is for coming and going bendable water pipe; Each monolithic cast steel slag ditch body (1) all connects a feed-water end corrugated stainless steel tubing (4) and a water side corrugated stainless steel tubing (5), so then with each monolithic cast steel slag ditch body (1) for unit, define one by one independently cooling water recirculation system in parallel; Described water inlet pipe (2) and rising pipe (3) are connected each via the water-in of feed-water end corrugated stainless steel tubing (4) and water side corrugated stainless steel tubing (5) and water-cooled tube (7) and water outlet.
2. tap cinder ditch according to claim 1, it is characterized in that: between water inlet pipe (2) and each feed-water end corrugated stainless steel tubing (4), and between rising pipe (3) and each water side corrugated stainless steel tubing (5), be all equipped with valve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310407060.0A CN103468845B (en) | 2013-09-09 | 2013-09-09 | Blast furnace slag discharge trench with built-in water cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310407060.0A CN103468845B (en) | 2013-09-09 | 2013-09-09 | Blast furnace slag discharge trench with built-in water cooling system |
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| CN103468845A CN103468845A (en) | 2013-12-25 |
| CN103468845B true CN103468845B (en) | 2015-05-20 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108796156A (en) * | 2018-06-14 | 2018-11-13 | 山东钢铁股份有限公司 | The closed slag runner of water cooling |
| EP3994958A4 (en) * | 2020-09-26 | 2022-10-26 | Danesh Parto Naghsh Jahan Co. | An integrated hollow copper electrode in slag hole with thermal conductivity |
| CN114807477B (en) * | 2022-05-24 | 2023-09-05 | 广东韶钢松山股份有限公司 | Blast furnace slag runner nozzle and slag discharging method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4177974A (en) * | 1977-08-17 | 1979-12-11 | Nippon Kokan Kabushiki Kaisha | Molten slag runner for blast-furnace plant |
| CN201545856U (en) * | 2009-12-09 | 2010-08-11 | 莱芜钢铁股份有限公司 | Cooler with water-cooled cast steel slag ditch |
| CN201785416U (en) * | 2010-09-10 | 2011-04-06 | 中冶赛迪工程技术股份有限公司 | Water cooling cinder runner work lining |
| CN202465746U (en) * | 2011-12-26 | 2012-10-03 | 济南钢铁股份有限公司 | Novel slag trough |
-
2013
- 2013-09-09 CN CN201310407060.0A patent/CN103468845B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4177974A (en) * | 1977-08-17 | 1979-12-11 | Nippon Kokan Kabushiki Kaisha | Molten slag runner for blast-furnace plant |
| CN201545856U (en) * | 2009-12-09 | 2010-08-11 | 莱芜钢铁股份有限公司 | Cooler with water-cooled cast steel slag ditch |
| CN201785416U (en) * | 2010-09-10 | 2011-04-06 | 中冶赛迪工程技术股份有限公司 | Water cooling cinder runner work lining |
| CN202465746U (en) * | 2011-12-26 | 2012-10-03 | 济南钢铁股份有限公司 | Novel slag trough |
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| CN103468845A (en) | 2013-12-25 |
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