CN101280349A - High-temperature furnace charge guiding device between pre-reduction furnace and final reduction furnace - Google Patents
High-temperature furnace charge guiding device between pre-reduction furnace and final reduction furnace Download PDFInfo
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- CN101280349A CN101280349A CNA2008101063318A CN200810106331A CN101280349A CN 101280349 A CN101280349 A CN 101280349A CN A2008101063318 A CNA2008101063318 A CN A2008101063318A CN 200810106331 A CN200810106331 A CN 200810106331A CN 101280349 A CN101280349 A CN 101280349A
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- furnace charge
- guiding device
- furnace
- pipeline
- high temperature
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- 230000009467 reduction Effects 0.000 title abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 47
- 238000005266 casting Methods 0.000 claims abstract description 8
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 5
- 244000144985 peep Species 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000003139 buffering effect Effects 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000003034 coal gas Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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Abstract
The invention discloses a high-temperature furnace charge guiding device between a pre-reduction furnace and a final reduction furnace, which comprises a guiding pipeline, wherein the guiding pipeline is composed of a section of straight pipeline, a section of inclined pipeline and a section of guiding short pipe, the lower end of the straight pipeline is communicated with the inclined pipeline, the lower interface of the inclined pipeline is communicated with the guiding short pipe, a layer of high-temperature-resistant and wear-resistant ceramic casting material is compounded on the inner wall of the guiding pipeline, and a furnace charge buffering device is arranged at the intersection of the straight pipeline and the inclined pipeline. The material guide device can solve the problems of lining resistance, wear resistance, easy deformation of the material guide device, convenient maintenance and the like.
Description
Technical field
The present invention relates to a kind of high temperature furnace charge material guiding device, the high temperature furnace charge material guiding device between pre-former stove of particularly a kind of pure oxygen non-blast furnace ironmaking and the end reducing furnace.
Background technology
In pure oxygen non-blast furnace ironmaking (POSRI) technology, pellet becomes hot sponge iron (～850 ℃) at pre-reducing furnace after the coal gas of high temperature reduction, behind the discharge with endless screw machine discharge by the pre-reducing furnace bottom, enter end reducing furnace through high temperature furnace charge material guiding device.
Because the sponge iron of heat continuously passes through material guiding device, very easily the anti-lining to material guiding device causes wearing and tearing, especially is that the discharging point place of vertical ducting and the inlet short tube place of end reducing furnace cause anti-lining wearing and tearing at the turning of oblique segment pipe.Simultaneously since end reducing furnace and pre-reducing furnace be communicated with, as not taking measures, coal gas of high temperature (～1100 ℃) in the end reducing furnace very easily seals in pre-reducing furnace through high temperature furnace charge material guiding device, the temperature of sponge iron is further raise, condensing of sponge iron blocks taken place, cause the obstruction of material guiding device, make pre-reducing furnace and end reducing furnace damping down overhaul, influence ordinary production.In addition, end reducing furnace is after operation, and furnace shell will go up, and makes high temperature furnace charge material guiding device deform and damages.
Summary of the invention
The technical issues that need to address of the present invention just are to overcome the defective of prior art, high temperature furnace charge material guiding device between a kind of pre-former stove and the end reducing furnace is provided, it is wear-resistant that it can solve anti-lining, problem such as prevent that the pre-reducing furnace coal gas of high temperature from collaborating, material guiding device easily deforms and repair and maintenance is convenient.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
High temperature furnace charge material guiding device between a kind of pre-former stove of the present invention and the end reducing furnace, comprise the guide pipeline, described guide pipeline is made of straight-run of pipe road, one section tilted tube and one section guide short tube, the straight pipeline lower end is communicated with tilted tube, tilted tube bottom interface is communicated with the guide short tube, be compounded with high temperature resistant, the anti abrasive pottery casting material of one deck on the described guide inner-walls of duct, the infall of straight pipeline and tilted tube is provided with the furnace charge snubber assembly.
Described furnace charge snubber assembly is a triangular cavity in the infall setting of straight pipeline and tilted tube.
The bottom is welded with the Heat resisting cast steel dividing plate in the described guide short tube.
Described straight pipeline is provided with FlexbleJoint.
The bottom of described furnace charge snubber assembly is provided with thief hole.
The top of described tilted tube is provided with peep hole.
The present invention is the high temperature furnace charge material guiding device between a kind of pre-former stove and the end reducing furnace, the discharge port of straight pipeline top and pre-reducing furnace is communicated with, guide short tube bottom and end reducing furnace feeding mouth are communicated with, for preventing of the wearing and tearing of high temperature furnace charge, at high temperature resistant, the anti abrasive pottery casting material of guide inner-walls of duct top casting to material guiding device.In the process of high temperature furnace charge blanking, easily the infall to straight pipeline and tilted tube causes lasting impact and wearing and tearing, and as not taking measures, anti-material herein will soon wear and tear, and frequently changes, and has a strong impact on end reducing furnace production.Therefore, the present invention is provided with the furnace charge snubber assembly at the infall of straight pipeline and tilted tube, promptly the infall at straight pipeline and tilted tube is provided with a triangular cavity, allow furnace charge be full of this cavity, the high temperature furnace charge at first impacts furnace charge herein and does not directly contact with the guide pipe lining like this, has played the effect of " material abrasive material ".Prolonged the life-span herein greatly.Bottom welding Heat resisting cast steel dividing plate in the same guide short tube that is connected with the end reducing furnace feeding mouth, between be full of furnace charge, the high temperature furnace charge is through herein the time, what wear and tear earlier is furnace charge, just makes the life-span prolongation of the guide short tube at end reducing furnace feeding mouth place.Bottom at the furnace charge snubber assembly is provided with thief hole, and when furnace charge took place to stop up, from then on the hole can be dredged furnace charge obstruction point.The end reducing furnace furnace shell can go up in actual production, and the guide pipeline is deformed, and therefore horizontal the and radial displacement that FlexbleJoint absorbs material guiding device is set on the straight pipeline of guide pipeline, and material guiding device can be damaged because of distortion.Top at tilted tube is provided with peep hole, conveniently furnace charge is observed the obstruction that can also dredge furnace charge at this simultaneously.
The beneficial effect of technical scheme provided by the invention is: the present invention can reduce the wearing and tearing of furnace charge to material guiding device greatly, prevents the destruction of material guiding device being caused because of thermal distortion effectively.Prolong the life-span of material guiding device, thereby reduced the number of times of changing material guiding device.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
As shown in Figure 1, high temperature furnace charge material guiding device between a kind of pre-former stove of the present invention and the end reducing furnace, comprise the guide pipeline, described guide pipeline is made of straight-run of pipe road 1, one section tilted tube 2 and one section guide short tube 3, the straight pipeline downstream is communicated with tilted tube, the tilted tube downstream is communicated with the guide short tube, is compounded with high temperature resistant, the anti abrasive pottery casting material of one deck on the described guide inner-walls of duct, and the infall of straight pipeline and tilted tube is provided with furnace charge snubber assembly 4.
Described furnace charge snubber assembly is a triangular cavity in the infall setting of straight pipeline and tilted tube.
The bottom is welded with Heat resisting cast steel dividing plate 5 in the described guide short tube.
Described straight pipeline is provided with FlexbleJoint 6.
The bottom of described furnace charge snubber assembly is provided with thief hole 7.
The top of described tilted tube is provided with peep hole 8.
The present invention is the high temperature furnace charge material guiding device between a kind of pre-former stove and the end reducing furnace, the discharge port 9 of straight pipeline top and pre-reducing furnace is communicated with, guide short tube bottom and end reducing furnace feeding mouth 10 are communicated with, for preventing of the wearing and tearing of high temperature furnace charge, at high temperature resistant, the anti abrasive pottery casting material of guide inner-walls of duct top casting to material guiding device.In the process of high temperature furnace charge blanking, easily the infall to straight pipeline and tilted tube causes lasting impact and wearing and tearing, and as not taking measures, anti-material herein will soon wear and tear, and frequently changes, and has a strong impact on end reducing furnace production.Therefore, the present invention is provided with the furnace charge snubber assembly at the infall of straight pipeline and tilted tube, promptly the infall at straight pipeline and tilted tube is provided with a triangular cavity, allow furnace charge be full of this cavity, the high temperature furnace charge at first impacts furnace charge herein and does not directly contact with the guide pipe lining like this, has played the effect of " material abrasive material ".Prolonged the life-span herein greatly.Bottom welding Heat resisting cast steel dividing plate in the same guide short tube that is connected with the end reducing furnace feeding mouth, between be full of furnace charge, the high temperature furnace charge is through herein the time, what wear and tear earlier is furnace charge, just makes the life-span prolongation of the guide short tube at end reducing furnace feeding mouth place.Bottom at the furnace charge snubber assembly is provided with thief hole, and when furnace charge took place to stop up, from then on the hole can be dredged furnace charge obstruction point.The end reducing furnace furnace shell can go up in actual production, and the guide pipeline is deformed, and therefore horizontal the and radial displacement that FlexbleJoint absorbs material guiding device is set on the straight pipeline of guide pipeline, and material guiding device can be damaged because of distortion.Top at tilted tube is provided with peep hole, conveniently furnace charge is observed the obstruction that can also dredge furnace charge at this simultaneously.
The present invention can reduce the wearing and tearing of furnace charge to material guiding device greatly, prevents the destruction of material guiding device being caused because of thermal distortion effectively.Prolong the life-span of material guiding device, thereby reduced the number of times of changing material guiding device.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1, the high temperature furnace charge material guiding device between a kind of pre-former stove and the end reducing furnace, comprise the guide pipeline, described guide pipeline is made of straight-run of pipe road, one section tilted tube and one section guide short tube, the straight pipeline lower end is communicated with tilted tube, tilted tube bottom interface is communicated with the guide short tube, it is characterized in that: be compounded with high temperature resistant, the anti abrasive pottery casting material of one deck on the described guide inner-walls of duct, the infall of straight pipeline and tilted tube is provided with the furnace charge snubber assembly.
2, the high temperature furnace charge material guiding device between pre-former stove as claimed in claim 1 and the end reducing furnace is characterized in that: the triangular cavity that described furnace charge snubber assembly is provided with for the infall at straight pipeline and tilted tube.
3, the high temperature furnace charge material guiding device between pre-former stove as claimed in claim 2 and the end reducing furnace is characterized in that: the bottom is welded with the Heat resisting cast steel dividing plate in the described guide short tube.
4, the high temperature furnace charge material guiding device between pre-former stove as claimed in claim 3 and the end reducing furnace, it is characterized in that: described straight pipeline is provided with FlexbleJoint.
5, the high temperature furnace charge material guiding device between pre-former stove as claimed in claim 4 and the end reducing furnace, it is characterized in that: the bottom of described furnace charge snubber assembly is provided with thief hole.
6, the high temperature furnace charge material guiding device between pre-former stove as claimed in claim 5 and the end reducing furnace, it is characterized in that: the top of described tilted tube is provided with peep hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101063318A CN101280349A (en) | 2008-05-13 | 2008-05-13 | High-temperature furnace charge guiding device between pre-reduction furnace and final reduction furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101063318A CN101280349A (en) | 2008-05-13 | 2008-05-13 | High-temperature furnace charge guiding device between pre-reduction furnace and final reduction furnace |
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| Publication Number | Publication Date |
|---|---|
| CN101280349A true CN101280349A (en) | 2008-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008101063318A Pending CN101280349A (en) | 2008-05-13 | 2008-05-13 | High-temperature furnace charge guiding device between pre-reduction furnace and final reduction furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197721A (en) * | 2014-08-18 | 2014-12-10 | 营口东吉科技（集团）有限公司 | Rotary distributing device |
| CN105506222A (en) * | 2015-12-08 | 2016-04-20 | 马鞍山钢铁股份有限公司 | Rapid unloading device for discharging pipe and water-cooling discharging pipe as well as water-cooling discharging pipe setting method |
-
2008
- 2008-05-13 CN CNA2008101063318A patent/CN101280349A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197721A (en) * | 2014-08-18 | 2014-12-10 | 营口东吉科技（集团）有限公司 | Rotary distributing device |
| CN105506222A (en) * | 2015-12-08 | 2016-04-20 | 马鞍山钢铁股份有限公司 | Rapid unloading device for discharging pipe and water-cooling discharging pipe as well as water-cooling discharging pipe setting method |
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Open date: 20081008 |