CN102808078A - Pellet roasting device - Google Patents
Pellet roasting device Download PDFInfo
- Publication number
- CN102808078A CN102808078A CN2012102062304A CN201210206230A CN102808078A CN 102808078 A CN102808078 A CN 102808078A CN 2012102062304 A CN2012102062304 A CN 2012102062304A CN 201210206230 A CN201210206230 A CN 201210206230A CN 102808078 A CN102808078 A CN 102808078A
- Authority
- CN
- China
- Prior art keywords
- combustion chamber
- roasting
- pellet
- cup
- refractory brick
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a pellet roasting device, which comprises an upper combustion chamber, a lower combustion chamber and a roasting beaker, wherein the upper combustion chamber, the lower combustion chamber and the roasting cup are connected sequentially from top to bottom and are in a cylindrical shape integrally. According to the provided pellet roasting device, a structure is improved, so that the combustion sufficiency of gas is improved, the radiating and edge effects of the roasting beaker are reduced, energy is saved, the problem of large quality difference of pellets on upper side, lower side, edges and central position of the roasting beaker caused by non-uniform flame and large edge effect during roasting tests of the pellets is solved, and the stable and effective condition is created for the roasting tests and study of the pellets.
Description
Technical field
The invention belongs to the pellet production technical field, be specifically related to a kind of pellet roasting device.
Background technology
Pellet has intensity height, epigranular, of high grade, characteristics such as harmful element content is low, is one of important component part of blast furnace burden.
Sinter process is that complicacy also is one of most important operation in the pellet production process.Green ball strength is low, and poor heat stability must make it to have enough physical strengths and thermostability through baking and concretion, to satisfy transportation and blast-furnace smelting requirement.The pellet roasting process comprises plurality of processes such as drying, preheating, roasting, soaking, cooling, and parameters such as the temperature of each process, time, wind speed change the production and the quality that all will influence pellet.So in the design of pellet production line and the parameter adjustment in the production process, all need test basis, otherwise directly carry out industrial production or the adjustment possibly bring very big risk, cause tremendous loss simultaneously.The pellet roasting cup is the main testing apparatus of simulation pellet roasting process; Through roasting cup simulation roasting test; The research different affecting factors proposes plan and process parameter optimizing scheme to the influence of pellet performance quality, is that indispensable testing apparatus is studied and produced to pelletizing process.
Because tested number and simple operation sexual needs; The diameter of pellet roasting cup is less relatively, and generally at Φ 80～300mm, and the roasting cup directly is connected with the combustion chamber; The roasting process combustion gas gets in the green-ball bed of material in the cup easily burns; Cause fuel gas buring insufficient, local temperature is too high, problems such as the bad control of roasting process.Because roasting cup diameter is little, fringing effect and cup heat radiation are big, and test-results is had certain influence in addition.Roasting cup pellet quality difference upper and lower and edge and centre is big during each the test, can not well simulate actual production process.Therefore, invent a kind of energy-conservation pellet roasting cup and combustion chamber thereof, effectively improved the sufficient combustion property of combustion gas and the fringing effect of roasting cup, reduced the calorific loss of roasting process, improved the stable and uniform property of pellet roasting test greatly.
Summary of the invention
The objective of the invention is to, it is inhomogeneous to overcome in the prior art pellet roasting cup combustion processes, and fringing effect and cup heat radiation are big, influence the problem of pellet roasting test, provides that a kind of burning is even, good heat insulating, the uniform pellet roasting device of steady air current.
A kind of pellet roasting device provided by the invention comprises: upper combustion chamber, lower combustion chamber and roasting cup;
Said upper combustion chamber, lower combustion chamber and roasting cup from top to bottom connect successively, and be whole cylindrical.
Further; The outer wall of said upper combustion chamber, lower combustion chamber and roasting cup constitutes by box hat, fire-resistant asbestos, outer refractory brick and interior refractory brick; Said box hat, fire-resistant asbestos, outer refractory brick and interior refractory brick connect from outside to inside successively, are used to reduce upper combustion chamber, lower combustion chamber and the heat radiation of roasting cup cup.
Further, between said outer refractory brick and the interior refractory brick vacuum voids is arranged.
Further, be provided with burner and lighter for ignition in the said upper combustion chamber, said burner connects gas line and combustion-supporting airduct.
Further, said lower combustion chamber is used to improve the uniform distribution and minimizing fringing effect of combustion gases, and internal fixation has upper strata porous plectane and lower floor's porous plectane.
Further, said upper strata porous plectane is used to place the corundum ball that particle diameter is 16mm;
Said lower floor porous plectane center is used to place the corundum ball that diameter is 17～18mm, and said lower floor porous plectane edge is used to place the corundum ball that diameter is 14～15mm.
Further, described pellet roasting device also comprises:
Flange, said upper combustion chamber is connected through said flange seal with lower combustion chamber.
A kind of pellet roasting device provided by the invention, through improving of structure the sufficient combustion property of combustion gas; Reduced the heat radiation and the fringing effect of roasting cup, save energy, flame is inhomogeneous when having solved the pellet roasting test simultaneously; Fringing effect is big; The big problem of quality gap that causes upper and lower, edge and centre pellet, for pellet roasting test and research created stable, effective condition.
Description of drawings
A kind of pellet roasting apparatus structure synoptic diagram that Fig. 1 provides for the embodiment of the invention;
Fig. 2 is a upper and lower outer wall of combustion chamber structural representation in the structure shown in Figure 1;
Fig. 3 is a structure shown in Figure 1 perforated plate construction synoptic diagram at the middle and upper levels;
Lower floor's perforated plate construction synoptic diagram in Fig. 4 structure shown in Figure 1.
Embodiment
In conjunction with Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, a kind of pellet roasting device provided by the invention comprises: upper combustion chamber 1, lower combustion chamber 2, roasting cup 3 and flange 4, upper combustion chamber 1, lower combustion chamber 2 and roasting cup 3 from top to bottom connect successively, and be whole cylindrical.Upper combustion chamber 1 and lower combustion chamber 2 are tightly connected through flange 4.The outer wall of upper combustion chamber 1, lower combustion chamber 2 and roasting cup 3 all is made up of box hat 5, fire-resistant asbestos 6, outer refractory brick 7 and interior refractory brick 8; And box hat 5, fire-resistant asbestos 6, outer refractory brick 7 and interior refractory brick 8 connect from outside to inside successively; Be used to reduce upper combustion chamber 1, lower combustion chamber 2 and the heat radiation of roasting cup 3 cups, reduce calorific loss.Be provided with vacuum voids between outer refractory brick 7 and the interior refractory brick 8.Upper combustion chamber 1 top is provided with burner 9 and lighter for ignition 10.Burner 9 connects gas line 11 and abundant burning and the minimizing fringing effect of combustion-supporting airduct 12 for combustion gas, below upper combustion chamber 1, meets a lower combustion chamber 2, places two-layer porous plectane, i.e. upper strata porous plectane 13 and lower floor's porous plectanes 14 in the lower combustion chamber 2 simultaneously.For the abundant burning of combustion gas and the uniform distribution of air-flow, place the uniform corundum ball 15 of particle diameter on the upper strata porous plectane 13.In order to reduce fringing effect, the centre bit of lower floor's porous plectane 14 is put the big relatively corundum ball 16 of particle diameter, and marginal position is put the relatively little corundum ball 17 of particle diameter.Lower combustion chamber 2 in use uses flange 4 to be tightly connected with roasting cup 3.
When using pellet roasting device provided by the invention to work, for the abundant burning of combustion gas and the uniform distribution of air-flow, place the uniform corundum ball 15 of particle diameter on the upper strata porous plectane 13 in lower combustion chamber 2 earlier, diameter is 16mm.In order to reduce fringing effect, the centre bit of the lower floor's porous plectane 14 in lower combustion chamber 2 is put the big relatively corundum ball 16 of particle diameter, and diameter is 17～18mm, and it is the corundum ball of 18mm that the present invention adopts diameter.Marginal position is put the relatively little corundum ball 17 of particle diameter, and diameter is 14～15mm, and it is the corundum ball of 14mm that the present invention adopts diameter.Then upper combustion chamber 1 is tightly connected with lower combustion chamber's 2 usefulness flanges 4.The pelletizing that needs roasting is put into roasting cup 3, roasting cup 3 and lower combustion chamber's 2 usefulness flanges 4 are tightly connected, click lighter for ignition 10 at last, ignition in the upper combustion chamber 13, heat is carried out roasting through 2 pairs of lower combustion chamber by beaker 3 interior pelletizings.
A kind of pellet roasting device provided by the invention, through improving of structure the sufficient combustion property of combustion gas; Reduced the heat radiation and the fringing effect of roasting cup, save energy, flame is inhomogeneous when having solved the pellet roasting test simultaneously; Fringing effect is big; The big problem of quality gap that causes upper and lower, edge and centre pellet, for pellet roasting test and research created stable, effective condition.
The foregoing description is a preferred implementation of the present invention; But embodiment of the present invention is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (7)
1. a pellet roasting device is characterized in that, comprising:
Upper combustion chamber, lower combustion chamber and roasting cup;
Said upper combustion chamber, lower combustion chamber and roasting cup from top to bottom connect successively, and be whole cylindrical.
2. pellet roasting device as claimed in claim 1 is characterized in that:
The outer wall of said upper combustion chamber, lower combustion chamber and roasting cup constitutes by box hat, fire-resistant asbestos, outer refractory brick and interior refractory brick; Said box hat, fire-resistant asbestos, outer refractory brick and interior refractory brick connect from outside to inside successively, are used to reduce upper combustion chamber, lower combustion chamber and the heat radiation of roasting cup cup.
3. pellet roasting device as claimed in claim 2 is characterized in that:
Between said outer refractory brick and the interior refractory brick vacuum voids is arranged.
4. pellet roasting device as claimed in claim 1 is characterized in that:
Be provided with burner and lighter for ignition in the said upper combustion chamber, said burner connects gas line and combustion-supporting airduct.
5. pellet roasting device as claimed in claim 1 is characterized in that:
Said lower combustion chamber is used to improve the uniform distribution and minimizing fringing effect of combustion gases, and internal fixation has upper strata porous plectane and lower floor's porous plectane.
6. pellet roasting device as claimed in claim 5 is characterized in that:
Said upper strata porous plectane is used to place the corundum ball that particle diameter is 16mm;
Said lower floor porous plectane center is used to place the corundum ball that diameter is 17～18mm, and said lower floor porous plectane edge is used to place the corundum ball that diameter is 14～15mm.
7. pellet roasting device as claimed in claim 1 is characterized in that, also comprises:
Flange, said upper combustion chamber is connected through said flange seal with lower combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102062304A CN102808078B (en) | 2012-06-18 | 2012-06-18 | Pellet roasting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102062304A CN102808078B (en) | 2012-06-18 | 2012-06-18 | Pellet roasting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102808078A true CN102808078A (en) | 2012-12-05 |
| CN102808078B CN102808078B (en) | 2013-11-27 |
Family
ID=47231947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102062304A Active CN102808078B (en) | 2012-06-18 | 2012-06-18 | Pellet roasting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102808078B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4914053A (en) * | 1972-03-20 | 1974-02-07 | ||
| JPS4914053B1 (en) * | 1969-05-14 | 1974-04-04 | ||
| CN2119630U (en) * | 1990-10-10 | 1992-10-21 | 北京科技大学 | Pellet mini-experimental roaster |
| CN1651916A (en) * | 2005-02-24 | 2005-08-10 | 北京科技大学 | Pelle roasting simulation tester and method thereof |
| CN2869028Y (en) * | 2006-01-24 | 2007-02-14 | 四川省冶金设计研究院 | Ball type hot-blast stove for 250M above blast furnace |
| CN101575667A (en) * | 2009-06-18 | 2009-11-11 | 北京科技大学 | Experimental device and method for iron ore pellet roasting process |
| CN201819232U (en) * | 2010-10-12 | 2011-05-04 | 郑州安耐克实业有限公司 | Composite grate |
-
2012
- 2012-06-18 CN CN2012102062304A patent/CN102808078B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4914053B1 (en) * | 1969-05-14 | 1974-04-04 | ||
| JPS4914053A (en) * | 1972-03-20 | 1974-02-07 | ||
| CN2119630U (en) * | 1990-10-10 | 1992-10-21 | 北京科技大学 | Pellet mini-experimental roaster |
| CN1651916A (en) * | 2005-02-24 | 2005-08-10 | 北京科技大学 | Pelle roasting simulation tester and method thereof |
| CN2869028Y (en) * | 2006-01-24 | 2007-02-14 | 四川省冶金设计研究院 | Ball type hot-blast stove for 250M above blast furnace |
| CN101575667A (en) * | 2009-06-18 | 2009-11-11 | 北京科技大学 | Experimental device and method for iron ore pellet roasting process |
| CN201819232U (en) * | 2010-10-12 | 2011-05-04 | 郑州安耐克实业有限公司 | Composite grate |
Non-Patent Citations (2)
| Title |
|---|
| 李强，朱正如: "太钢450㎡烧结机投产后的整改与完善", 《烧结球团》 * |
| 杜森林: "球式热风炉设计及生产运行中的若干问题", 《炼铁》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102808078B (en) | 2013-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106907711A (en) | A kind of porous media combustor of radially layered with phase-transition heat-storage | |
| CN102808078B (en) | Pellet roasting device | |
| CN203642689U (en) | Combustion furnace | |
| CN202993204U (en) | Burner | |
| CN203605258U (en) | Pneumatic feeding device and biomass briquette boiler | |
| CN202719861U (en) | Hot wind annular distribution pipe applied to drying tower | |
| CN202719851U (en) | Multi-point-blanking drying tower | |
| CN205996101U (en) | A kind of forge furnace | |
| CN104457250A (en) | Kiln | |
| CN202973305U (en) | Infrared concave surface type metal heating plate | |
| CN204084479U (en) | A kind of novel combined burner of infrared and flame | |
| CN208408526U (en) | A kind of novel baking of tundish device | |
| CN208532624U (en) | The limekiln air supply device of limekiln blast cap and its composition | |
| CN103913056B (en) | Alloy baking method | |
| CN202379734U (en) | Arched atmosphere furnace for lithium iron phosphate | |
| CN110530929A (en) | Blast furnace injection rate of pulverized coal combustion detection device | |
| CN206222369U (en) | A kind of domestic biomass combustion furnace | |
| CN206618257U (en) | A kind of novel rotary kiln of distributed heating | |
| CN205957224U (en) | Grillage is with a firearm | |
| CN202973091U (en) | Infrared metal combustion-supporting plate | |
| CN205258014U (en) | Carbomorphism device of production active carbon | |
| CN205002581U (en) | Furnace cupola in rock wool production | |
| CN104155328A (en) | Oxygen-rich sintering test apparatus | |
| CN202852817U (en) | Double air duct combustion device | |
| CN209726257U (en) | A kind of biological particles hearth of hot-blast stove helical screens structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee after: Shougang Group Co. Ltd. Address before: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee before: Capital Iron & Steel General Company |