CN201288201Y - Coal based ferrum redactum rotary kiln - Google Patents
Coal based ferrum redactum rotary kiln Download PDFInfo
- Publication number
- CN201288201Y CN201288201Y CNU2008201735490U CN200820173549U CN201288201Y CN 201288201 Y CN201288201 Y CN 201288201Y CN U2008201735490 U CNU2008201735490 U CN U2008201735490U CN 200820173549 U CN200820173549 U CN 200820173549U CN 201288201 Y CN201288201 Y CN 201288201Y
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- rotary kiln
- cooling water
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Abstract
The utility model relates to a coal-based reduced iron rotary kiln primarily used for producing sponge iron, wherein a kiln furnace body housing of the rotary kiln is provided with a cooling water cavity, a furnace body outlet is equipped with an air intake pipeline which is hermetically connected with a cooling pond, and a furnace lining in the furnace body is provided with an anti-ring apparatus. After adopting the coal-based reduced iron rotary kiln, three difficulties are solved, such as the ringing of the materials in the rotary kiln, the fully reducing atmosphere in the reducing section and the after-oxidizing of the production, and the production efficiency and the quality of the production are greatly improved.
Description
Technical field
The utility model relates to a kind of smelting equipment, particularly a kind of coal base reduction iron rotary kiln.
Background technology
The mode of production of present Chinese sponge iron mainly is that adopting process is stablized coal-based tunnel furnace method, but has determined all that from plant size, floor space, the automatic degree of equipment, labour intensity and environment, supplies consumption index etc. the production cost of this technology, frock is very high; Yield poorly, finally cause the benefit of factory very poor.Problem such as higher and material characteristic causes products production cost height to tradition " chain grate machine-rotary kiln-cooling cylinder " coal-based rotary kiln method because of cost of material in China, and frock goes wrong often, causes several production line productions that started normally not move.Simultaneously for various ferruginous waste residue waste materials, and the lower ore of grade all can't adopt this method to be used, and wasted a large amount of resources.And existing rotary kiln mostly is two-piece design, floor space is big, energy consumption is higher, and because textural defect can't guarantee sufficient reducing atmosphere, make that the sponge iron that is reduced out is often oxidized again in the exit, thereby reduced the efficient of production and the quality of product, and relatively poor in the kiln owing to material fluidity, thereby very easily in body of heater, be gathered into production efficiency and work-ing life that piece reduces kiln, and increased the running energy consumption of equipment greatly.
Summary of the invention
Many weak points at existing coal base reduction iron rotary kiln existence, the utility model provides a kind of novel coal base reduction iron rotary kiln, be provided with cooling water cavity in the external cover of the kiln of this rotary kiln, the body of heater exit is provided with the air intake pipeline and is tightly connected with the cooling basin, and the intravital furnace lining of stove is provided with the anti-caking coil apparatus.After adopting this structure, efficiently solve material ring formation in the rotary kiln, guarantee abundant reducing atmosphere and product later stage oxidation Three Difficult Issues in the reduction section, improve the efficient of production and the quality of product greatly.
The concrete technical scheme that the utility model adopts is: a kind of coal base reduction iron rotary kiln, comprise body of heater, and be provided with cooling water cavity in the furnace body overcoat; The body of heater exit is provided with the air intake pipeline, and is tightly connected with the cooling basin; The intravital furnace lining of stove is provided with the anti-caking coil apparatus, and cooling water cavity is connected with cooling water pipeline.
Owing in furnace body overcoat, be provided with cooling water cavity, can effectively lower the temperature to body of heater, prevent that the body of heater that causes owing to body of heater is overheated is out of shape and the lost of life, improved the work-ing life of body of heater, can be used as the heat supply generating after water coolant heats up etc., effectively utilized the waste heat in the production process, having improved rate of energy is that enterprise has reduced cost; The body of heater exit is provided with the air intake pipeline, changed the drawback that existing rotary kiln blast inlet and opening for feed are in the same side, make reductive agent and raw material that sufficient the contact arranged, improved the temperature of reaction outlet simultaneously, realized high temperature discharging, so just having guaranteed has a sufficient reductive agent atmosphere in whole kiln body, improved the content of pure iron in the reduction ratio of iron in the raw material and the products obtained therefrom, the Fe degree of gained sponge iron is greatly improved than existing processes and equipment greater than 97%; The body of heater outlet is tightly connected with the cooling basin, like this after reaction is finished, the product of gained can directly drop to the cooling basin from the exit, promptly reached purpose with the product cooling, guaranteed that again product does not contact with air in process of cooling, thereby so just guaranteed that product can not guaranteed the quality of product by secondary oxidation, and water coolant can carry out second stage employ after heating up, also improve the service efficiency of the energy, reduced the production cost of enterprise; The intravital furnace lining of stove is provided with the anti-caking coil apparatus, the general interior barricade that is made as one with furnace lining that adopts of this anti-caking coil apparatus, like this when material movement arrives interior barricade place, can be disperseed by secondary, the contact area that has increased raw material and reductive agent has improved the efficient of reaction, has prevented that simultaneously raw material is gathered into the agllutination circle in body of heater, improved the work-ing life of body of heater, also alleviate the running pressure of equipment, reduced the energy consumption of whole production and the cost of enterprise.
Be provided with the product collection device in the cooling basin, this device can adopt the scraper plate machine that buries, and so just refrigerative sponge iron in the cooling basin can be reclaimed, and can excessively not assemble in the cooling basin and causes the obstruction in pond.NM part in the utility model rotary kiln as power system and heat supply feed system etc., all adopts existing various technical equipment.
In sum, behind this rotary kiln that employing the utility model provides, efficiently solve material ring formation in the rotary kiln, guarantee abundant reducing atmosphere and product later stage oxidation Three Difficult Issues in the reduction section, improve the efficient of production and the quality of product greatly, adopt this rotary kiln and be used technology such as existing flotation, the grade that not only can improve metallic iron can also fully reclaim valuable non-ferrous metal in the reduction raw material, make that the residual of harmful element such as Cu, pb are effectively reduced in the ferrous metal product, can obtain valuable nonferrous metal product simultaneously; The consumption of the energy and reductive agent simultaneously can significantly reduce; Reduce the production run cost and improved the profit of enterprise.
Description of drawings
Fig. 1 is the structural representation of coal base reduction iron rotary kiln described in the utility model;
Fig. 2 is the enlarged view at A place among Fig. 1;
Fig. 3 is the enlarged view at B place among Fig. 1;
1 cooling water outlet among the figure, 2 cooling water inlets, 3 cooling water pipelines, the outlet of 4 bodies of heater, 5 air intake pipelines, 6 cooling basins, 7 interior barricades, 8 cooling water cavities, 9 cooling water cavity water-ins.
Embodiment
A kind of coal base reduction iron rotary kiln comprises body of heater, is provided with cooling water cavity 8 in the furnace body overcoat; Body of heater exports 4 places and is provided with air intake pipeline 5, and is tightly connected with cooling basin 6; The intravital furnace lining of stove is provided with the anti-caking coil apparatus, and described anti-caking coil apparatus is the interior barricade 7 that is made as one with furnace lining, is provided with the product collection device in the described cooling basin 6, and described cooling water cavity 8 is connected with cooling water pipeline 3.
Claims (4)
1. a coal base reduction iron rotary kiln comprises body of heater, it is characterized in that: be provided with cooling water cavity (8) in the furnace body overcoat; Body of heater outlet (4) locates to be provided with air intake pipeline (5), and is tightly connected with cooling basin (6); The intravital furnace lining of stove is provided with the anti-caking coil apparatus.
2. coal base reduction iron rotary kiln according to claim 1 is characterized in that: described anti-caking coil apparatus is the interior barricade (7) that is made as one with furnace lining.
3. rotary kiln according to claim 1 is characterized in that: described cooling basin is provided with the product collection device in (6).
4. rotary kiln according to claim 1 is characterized in that: described cooling water cavity (8) is connected with cooling water pipeline (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201735490U CN201288201Y (en) | 2008-10-23 | 2008-10-23 | Coal based ferrum redactum rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201735490U CN201288201Y (en) | 2008-10-23 | 2008-10-23 | Coal based ferrum redactum rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201288201Y true CN201288201Y (en) | 2009-08-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201735490U Expired - Fee Related CN201288201Y (en) | 2008-10-23 | 2008-10-23 | Coal based ferrum redactum rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201288201Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538446A (en) * | 2012-01-21 | 2012-07-04 | 胡长春 | Dynamic cooling system for rotary kiln |
| CN102538447A (en) * | 2012-01-21 | 2012-07-04 | 胡长春 | Dynamical cooling system for rotary kiln |
| CN102564130A (en) * | 2012-01-21 | 2012-07-11 | 胡长春 | Continuous temperature control smelting system integrating rotary kiln with melting furnace |
| CN102564116A (en) * | 2012-01-21 | 2012-07-11 | 胡长春 | Dynamic cooling system for rotary kiln |
| CN102583463A (en) * | 2012-01-21 | 2012-07-18 | 胡长春 | Rotary kiln gas-distribution and cooling system |
| CN102583464A (en) * | 2012-01-21 | 2012-07-18 | 胡长春 | Rotary kiln gas-distribution and cooling system |
| CN104630407A (en) * | 2015-02-13 | 2015-05-20 | 唐竹胜 | Whole-body type external-heating muffle type rotary kiln |
| CN113465367A (en) * | 2021-07-10 | 2021-10-01 | 阳泉恒跃兴钙业有限公司 | Ring formation detection processing method and device for lime fired by rotary kiln |
-
2008
- 2008-10-23 CN CNU2008201735490U patent/CN201288201Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538446A (en) * | 2012-01-21 | 2012-07-04 | 胡长春 | Dynamic cooling system for rotary kiln |
| CN102538447A (en) * | 2012-01-21 | 2012-07-04 | 胡长春 | Dynamical cooling system for rotary kiln |
| CN102564130A (en) * | 2012-01-21 | 2012-07-11 | 胡长春 | Continuous temperature control smelting system integrating rotary kiln with melting furnace |
| CN102564116A (en) * | 2012-01-21 | 2012-07-11 | 胡长春 | Dynamic cooling system for rotary kiln |
| CN102583463A (en) * | 2012-01-21 | 2012-07-18 | 胡长春 | Rotary kiln gas-distribution and cooling system |
| CN102583464A (en) * | 2012-01-21 | 2012-07-18 | 胡长春 | Rotary kiln gas-distribution and cooling system |
| CN102564130B (en) * | 2012-01-21 | 2014-05-07 | 胡长春 | Continuous temperature control smelting system integrating rotary kiln with melting furnace |
| CN104630407A (en) * | 2015-02-13 | 2015-05-20 | 唐竹胜 | Whole-body type external-heating muffle type rotary kiln |
| CN113465367A (en) * | 2021-07-10 | 2021-10-01 | 阳泉恒跃兴钙业有限公司 | Ring formation detection processing method and device for lime fired by rotary kiln |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20151023 |
|
| EXPY | Termination of patent right or utility model |