CN104651603A - Plane circulating belt type roasting machine - Google Patents
Plane circulating belt type roasting machine Download PDFInfo
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- CN104651603A CN104651603A CN201310596942.6A CN201310596942A CN104651603A CN 104651603 A CN104651603 A CN 104651603A CN 201310596942 A CN201310596942 A CN 201310596942A CN 104651603 A CN104651603 A CN 104651603A
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Abstract
The invention provides a ring type pellet roasting machine. The roasting equipment has trolleys operating in a ring rotation way, integrates drying, roasting and cooling functions, can realize continuous feeding and discharge, and is mainly used for iron concentrate powder oxidized pellet production. The device includes a transmission device (1), trolleys (2), a press rail (3), a support roll (4), a rotating frame (5), a distribution system (6), a hooded system (7), bellows and sealing devices (8), a discharge chute and discharge hopper (9), a rack (10), and a side check roll (11). The equipment realizes the whole process of pellet drying, preheating, roasting and cooling, is simple, reliable, and convenient to operate and maintain, and is suitable for production of pellets from magnetite, hematite and other iron concentrate powder raw materials. The equipment continuously operates in a ring and has no return empty trolley, the total heat dissipation area is small, the hot air recycling system is concentrated, the pipeline is the shortest, the heat loss is maximumly reduced, and the thermal efficiency is high. As the ring type pelletizing machine has compact structure and floor space, also the civil engineering foundation and plant structure height is low, the civil engineering investment and equipment investment are greatly reduced, the construction cost of the whole project is reduced, and the construction period is significantly shortened.
Description
Technical field
The invention discloses a kind of chassis to run in the pivotal mode of annular, integrate drying, roasting, refrigerating function, the roasting apparatus of continuous charging and discharging, be mainly used in Iron concentrate acid pellet and produce.
Background technology
There are three kinds of technology in current production acid pellet: shaft furnace, drying grate-rotary kiln-circular cooler, belt type roasting machine.
Shaft Furnace Pelletizing Process is uneven owing to there is pellet quality, intensity compared with low and difference compared with large, unit ability is little, energy consumption is high, be limited by very large the adaptability of raw material and the fuel also defect such as poor, especially can not adapt to blast furnace and maximize and the needs of rhombohedral iron ore production pelletizing.The atrophy gradually of current domestic and international newly-built Shaft Furnace Pelletizing Process project, also can along with blast furnace maximize trend and gradually substitute by other techniques.
Although drying grate-rotary kiln-circular cooler method can produce the measured pelletizing of matter, but also there is larger difficulty for the production of hematite pellets, the investment of original grate rotary kiln method is just higher, the equipment price that can meet hematite pellets production is also just higher, a consumption no small expenditure especially of annual three large main frame high temperature steel spare parts after going into operation.Drying grate-rotary kiln-circular cooler technique floor space is large, facility investment and capital cost high, equipment component is many, and operation and maintenance cost is higher; Especially in kiln operation, have certain difficulty, easily produce caking and ring formation phenomenon.The hot-air system pipeline of this technique is the longest in addition, drying grate and rotary kiln device radiating surface many, its calorific loss is larger.
It is generally acknowledged another kind of maturation process that belt type roasting machine produces pelletizing, and it is best in several technique for adapting to the ability of mineral, but output investment ratio grate rotary kiln method height 10-20%, more difficultly to be accepted by client.The structure of belt type roasting machine is equivalent to an endless chain, referred to here as " chain circulation belt type roasting machine ", at feed end and discharge end, large star-wheel is all set, feed end star-wheel is motion-work wheel, driven for driving chassis to travel forward after super-dry, roasting, cooling in afterbody discharging by electric motor, rise on the baked for producing line on top one by one by chassis on the chassis line of return of bottom, this is the operational process of a three-dimensional circulation simultaneously.So require that the service platform height of burning machine is high, factory building is high; And chassis quantity is many, make of high-temperature alloy steel, material usage is large, and material requires high, expensive, and facility investment is very high.
There is idle running and return the phenomenon that chain area of dissipation is large, waste energy in the drying grate in drying grate-rotary kiln-circular cooler method, and drying grate, central cooler hot air circulation pipeline longlyer also there is energy dissipation phenomenon; Also there is the heat dissipation problem of idle running chassis in belt type roasting machine.
Find a kind of quality that can ensure pellet, be applicable to all mineral simultaneously, can engineering construction investment be reduced again, compact construction, floor space is little, pellet formation equipment that heat utilization efficiency is high is object of the present invention.
Summary of the invention
The invention provides a kind of ring-type pellet burning machine.For reaching above-mentioned purpose, ring-type pellet burning machine of the present invention comprises:
(1) transmission mechanism, for promoting slewing frame circulatory motion, governor mechanism controlling run speed, adopts pin tooth transmission.
(2) chassis, carries out the series of process production processes such as drying, preheating, roasting, cooling for directly carrying green-ball.
(3) press rail, ensure that chassis normally runs at non-discharge zone and do not overturn, realize reversion discharging at discharge zone.
(4) support roll, runs for supporting slewing frame;
(5) slewing frame, drive chassis to do circulatory motion, on it, whole circle arranges transmission chain, and chassis reversing shaft is fixed thereon simultaneously;
(6) cloth system, is provided with grate-layer material device, paving rim charge device, green-ball distribution device;
(7) upper cover system, is divided into blasting drying period, down-draft drying zone, preheating section, firing section, soaking zone and cooling one section and cooling two sections with partition wall in whole region.Adopt water-lute or husky sealing between upper cover and slewing frame, the preheating section of burning machine and firing section are equipped with multiple burner, for accurately controlling maturing temperature.
(8) bellows and tightness system, the bellows that below is arranged and upper cover system is corresponding of chassis, realize exhausting air blast by wind box branch pipe.The exclusion seal that tightness system is used for the sealing of discharge system and bellows and blasting drying period, down-draft drying zone, preheating section, firing section, soaking zone and cooling one section and cools between two sections of bellows.
(9) discharge system, containing blowpit and discharging hopper;
(10) frame,
(11) side blocking roller, for limiting slewing frame, placing its sideslip, being fixed in frame.
Feature of the present invention is:
Collection drying, preheating, roasting, the whole technological process of cooling are carried out on an equipment, and equipment is simple, reliable, convenient operating maintenance; Without idle running chassis, chassis utilization ratio is high; Hot air circulation service efficiency is high; Be suitable for using the Iron concentrate such as magnetite, rhombohedral iron ore raw material production pelletizing.
Ring-type pellet burning machine is not because have the lower loop of chain circulation belt type roasting machine, and chassis quantity and heat-resisting alloy steel consumption are only equivalent to 40% of chain circulation belt type roasting machine, and hot air circulation pipeline is shorter simultaneously, and thermosteresis is less; Ring-type pellet owner line weight of equipment is only equivalent to 1/3rd of chain grate machine, rotary kiln and central cooler three grosss weight of equipment, and facility investment reduces greatly.
Ring-type pellet burning machine significantly can reduce floor space, the floor space of ring-type pellet burning machine is only about 40% of drying grate-rotary kiln-circular cooler method and belt type roasting machine method, after main line equipment reduces, corresponding foundation of civil work, mill construction and steel construction also significantly reduce, the construction cost of whole engineering reduces, and the construction period also can obviously shorten.
Accompanying drawing explanation
Fig. 1 is ring-type pellet burning machine vertical view of the present invention
Fig. 2 is ring-type pellet burning machine of the present invention circumferentially stretch-out view
Fig. 3 is ring-type pellet burning machine transmission mechanism place of the present invention sectional drawing
Fig. 4 is ring-type pellet burning machine spreading system grate-layer material device place of the present invention sectional drawing
Fig. 5 is ring-type pellet burning machine upper cover system burner place of the present invention sectional drawing
Embodiment
Ring-type pellet machine adopts pin tooth driving device (1), transmitting gear engages with the endless chain be installed on slewing frame (5), thus drive slewing frame (5) to rotate, slewing frame (5) is supported on load-bearing support roll (4), the inner side of slewing frame (5) is provided with side blocking roller (11), is used for controlling slewing frame (5) and operates according to a center of turning circle.Turnover chassis (2) is arranged on slewing frame (5), the inner shaft of each chassis (2) installs a crank, crank end arranges the pinch roller that controls its upset, during operation, pinch roller makes chassis keep horizontality to run under the constraint of pressure rail (3), chassis (2) is after entering cloth district, grate-layer material device first in spreading system (4) is used for protecting chassis at the surface of chassis (2) the certain thickness ripe ball of paving, and then spread the green-ball of about 300mm, the thick ripe ball of 30-50mm is spread by paving rim charge device in the both sides of chassis (2) while paving green-ball, be used for protecting the limit of chassis (2) to help.Chassis (2) continuously operation is with between the process island of cover system (7) and bellows and tightness system (8), is subdivided into blasting drying period, down-draft drying zone, preheating section, firing section, soaking zone and cooling one section and cooling two sections in whole region by partition wall.Cooled chassis (2) enters discharge zone, the pressure rail (3) of discharge zone is upper notch shape, chassis (2) car body lay particular stress on and above pellet weight effect under automatically tumble downwards, finished ball enters blowpit and discharging hopper (12), complete discharge process, after discharging, chassis pinch roller is along pressure rail curve motion, and chassis (2) returns to horizontality, then cloth again, enters next circulation.
The bellows that the below of chassis (2) is provided with and upper cover system (7) each working zone is corresponding and tightness system (8), in upper cover system (7), preheating section and firing section are equipped with multiple burner, for precise control of temperature, gas after one cold section of cooling heat transferring directly returns firing section and preheating section, firing section bellows hot blast goes back to down-draft drying zone, secondary cooling zone bellows hot blast, to blasting drying period, realizes hot blast comprehensive utilization.
Claims (10)
1. a ring-type pellet burning machine, chassis runs in the pivotal mode of annular, integrates drying, roasting, refrigerating function, the roasting apparatus of continuous charging and discharging, is mainly used in Iron concentrate acid pellet and produces.
This device comprises (1) transmission mechanism, (2) chassis, (3) rail is pressed, (4) support roll: (5) slewing frame, (6) cloth system, (7) upper cover system, (8) bellows and tightness system, (9) blowpit and discharging hopper, (10) frame, (11) side blocking roller.
2. device according to claim 1, is characterized in that: chassis (2) runs in the pivotal mode of annular, completes the drying of green-ball, preheating, roasting, cooling.
3. device according to claim 1, it is characterized in that: chassis (2) is for turning, it is arranged on slewing frame (5), the inner shaft of each chassis (2) installs a crank, crank end arranges the pinch roller that controls its upset, and during operation, pinch roller makes chassis keep horizontality to run under the constraint of pressure rail (3).
4. device according to claim 1, is characterized in that: adopt pin tooth driving device (1), transmitting gear engages with the endless chain be installed on slewing frame (5), thus drives slewing frame (5) to rotate.
5. device according to claim 1, is characterized in that: the inner side of slewing frame (5) is provided with side blocking roller (11), is used for controlling slewing frame (5) and operates according to a center of turning circle.
6. device according to claim 1, is characterized in that: arrange grate-layer material device and paving rim charge device in spreading system (4); Grate-layer material device is used for protecting chassis at the surface of chassis (2) the certain thickness ripe ball of paving; and then spread the green-ball of about 300mm; spread the thick ripe ball of 30-50mm by paving rim charge device in the both sides of chassis (2) while spreading green-ball, be used for protecting the limit of chassis (2) to help.
7. device according to claim 1, is characterized in that: the pressure rail (3) of discharge zone is upper notch shape, chassis (2) car body lay particular stress on and above pellet weight effect under automatically tumble downwards, complete discharge process.
8. device according to claim 1, it is characterized in that: cover system (7) and bellows and tightness system (8) are set, and be blasting drying period, down-draft drying zone, preheating section, firing section, soaking zone and cooling one section and cooling two sections by the Region dividing that both form.
9. device according to claim 8, is characterized in that: in upper cover system (7), preheating section and firing section are equipped with multiple burner, for precise control of temperature.
10. device according to claim 1, it is characterized in that: between upper cover system (7) and bellows and tightness system (8), hot air circulation pipeline is set, gas after one cold section of cooling heat transferring directly returns firing section and preheating section, firing section bellows hot blast goes back to down-draft drying zone, secondary cooling zone bellows hot blast, to blasting drying period, realizes hot blast comprehensive utilization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310596942.6A CN104651603A (en) | 2013-11-25 | 2013-11-25 | Plane circulating belt type roasting machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310596942.6A CN104651603A (en) | 2013-11-25 | 2013-11-25 | Plane circulating belt type roasting machine |
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| CN104651603A true CN104651603A (en) | 2015-05-27 |
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| CN201310596942.6A Pending CN104651603A (en) | 2013-11-25 | 2013-11-25 | Plane circulating belt type roasting machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108342567A (en) * | 2018-04-18 | 2018-07-31 | 中南大学 | Experiment pellet belt type roasting machine |
| CN109868362A (en) * | 2019-04-11 | 2019-06-11 | 中冶长天国际工程有限责任公司 | A kind of circular grate pelletizing machine |
| CN110094971A (en) * | 2019-04-11 | 2019-08-06 | 中冶长天国际工程有限责任公司 | A kind of radial uniform thickness uniform distribution device of ring type roasting |
| CN113249566A (en) * | 2021-03-03 | 2021-08-13 | 广西北港新材料有限公司 | Sintering system and method for limonite type laterite-nickel ore |
| CN113639552A (en) * | 2021-09-03 | 2021-11-12 | 中冶北方（大连）工程技术有限公司 | Bottom rim charge supply system and method for belt type roasting machine |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108342567A (en) * | 2018-04-18 | 2018-07-31 | 中南大学 | Experiment pellet belt type roasting machine |
| CN109868362A (en) * | 2019-04-11 | 2019-06-11 | 中冶长天国际工程有限责任公司 | A kind of circular grate pelletizing machine |
| CN110094971A (en) * | 2019-04-11 | 2019-08-06 | 中冶长天国际工程有限责任公司 | A kind of radial uniform thickness uniform distribution device of ring type roasting |
| CN110094971B (en) * | 2019-04-11 | 2020-10-27 | 中冶长天国际工程有限责任公司 | Annular roasting radial uniform-thickness uniform distribution device |
| CN109868362B (en) * | 2019-04-11 | 2024-02-13 | 中冶长天国际工程有限责任公司 | Ring type roasting machine |
| CN113249566A (en) * | 2021-03-03 | 2021-08-13 | 广西北港新材料有限公司 | Sintering system and method for limonite type laterite-nickel ore |
| CN113249566B (en) * | 2021-03-03 | 2023-02-07 | 广西北港新材料有限公司 | Sintering system and method for limonite type laterite-nickel ore |
| CN113639552A (en) * | 2021-09-03 | 2021-11-12 | 中冶北方（大连）工程技术有限公司 | Bottom rim charge supply system and method for belt type roasting machine |
| CN113639552B (en) * | 2021-09-03 | 2024-06-11 | 中冶北方（大连）工程技术有限公司 | Bottom edge material supply system and method for belt roasting machine |
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Application publication date: 20150527 |
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| RJ01 | Rejection of invention patent application after publication |