CN103940234B - Coal-fired ignition kiln head for manganese ore sintering machine - Google Patents
Coal-fired ignition kiln head for manganese ore sintering machine Download PDFInfo
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- CN103940234B CN103940234B CN201410157266.7A CN201410157266A CN103940234B CN 103940234 B CN103940234 B CN 103940234B CN 201410157266 A CN201410157266 A CN 201410157266A CN 103940234 B CN103940234 B CN 103940234B
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- sintering machine
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Abstract
The invention discloses a coal-fired ignition kiln head for a manganese ore sintering machine. The coal-fired ignition kiln head comprises a primary combustion chamber, a secondary combustion chamber and an ignition chamber. The primary combustion chamber and the secondary combustion chamber are communicated. The secondary combustion chamber is communicated with the ignition chamber and provided with a fire grate, a soft coal combusting engine and an air blower corresponding to the primary combustion chamber. The ignition chamber is arranged on sintering machine hoppers stepping in the front and back direction and comprises a clamping sleeve provided with an upper arch layer and a lower arch layer. The front-back length of the clamping sleeve corresponds to the total length of a plurality of sintering machine hoppers below the clamping sleeve. The left-right width of the clamping sleeve corresponds to the width of each sintering machine hopper. The lower arch layer in the clamping sleeve is provided with a plurality of sets of fire distributing bands in a front and back mode, wherein the fire distributing bands correspond to the sintering machine hoppers respectively. Each set of the fire distributing band comprises front and back bands in the left and right direction. According to the coal-fired ignition kiln head, low-price soft coal is used as fuel, generated high-temperature flue gas can be directly used for ignition, the ignition effect is good, and the operation cost is low.
Description
(1) technical field:
The present invention relates to smelting equipment, be specially a kind of sintering machine fire coal igniting kiln hood.
(2) background technology:
Current manganese ore is placer mostly, because particle is too little, cannot directly as the raw material of blast furnace, and therefore, manganese placer needs first to adopt sintering machine to carry out sintering processes, just can enter blast furnace process after becoming the mineral aggregate of bulk.
Described sintering machine needs an igniter, for lighting the anthracite be mixed in manganese placer.Current sintering machine is all adopt gas igniter, if near have the normal blast furnace run, then blast furnace gas can be adopted as fuel.
But be not have blast furnace near each sintering machine, neither can normally run by each blast furnace, therefore, the igniter not adopting blast furnace gas to make the sintering machine of fuel supporting has just occurred always.
Traditional supporting igniting burner of sintering machine not adopting blast furnace gas to do fuel is all become with ignition head group by gas producer, principle first makes coal gas with coke, then do fuel to light a fire with coal gas, and energy have passed through 2 conversions, cause the utilization rate of energy very low, consume energy huge; Gas producer needs consumption 9 tons ~ 15 tons high-quality high price coke to do raw material every day, and by present price, the operating fuel cost of every day is up to 1.2 ~ 1.8 ten thousand yuan.
(3) summary of the invention:
For solving the problem that waste of fuel causes operating cost high, the present invention proposes a kind of sintering machine fire coal igniting kiln hood adopting bituminous coal to do fuel.
The technical scheme of sintering machine fire coal igniting kiln hood of the present invention, comprise primary zone, secondary combustion chamber and igniting chamber, difference is that described primary zone communicates with secondary combustion chamber, described secondary combustion chamber communicates with igniting chamber, is configured with fire grate, bituminous coal combustion machine and air blast corresponding to primary zone; Described igniting chamber is located on the sintering machine hopper of fore-and-aft direction stepping, the anterior-posterior length of igniting chamber corresponds to the total length of more piece sintering machine hopper below it, left and right width corresponds to the width of sintering machine hopper, the bottom of igniting chamber offers front and back multicomponent Dui Yingyu the cloth fire band of more piece sintering machine hopper, often organizes that cloth fire band is front and back setting, two of left and right directions.
Operation principle of the present invention:
1, bituminous coal enters primary zone, carries out first time burning under the effect of bituminous coal combustion machine.
2, under air blast effect, the flue gas (main component is CO) of burning enters secondary combustion chamber, and the double purification carrying out adiabatic high temperature burns, and (CO meets oxygen in air and Thorough combustion is CO
2), and then flue-gas temperature is brought up to more than 1000 DEG C.
3, high-temperature flue gas enters igniting chamber, carries out pressure balance.
4, the high-temperature flue gas in igniting chamber carries out Fire Distribution by many group cloth fire bands to each sintering machine hopper, and high-temperature flue gas is sprayed onto in sintering machine hopper from cloth fire band the anthracite lighted mineral aggregate, realizes sintering.
For obtaining different firepower sizes, be interval with the tune firebrick that polylith blocks cloth fire band in described igniting chamber, adjustment adjusts the quantity of firebrick and position can carry out the distribution of firepower size adjustment.
Described igniting chamber bottom design is arch upwards under normal circumstances, for ease of adjusting putting (igniting chamber domed bottom is unfavorable for adjusting firebrick to put) of firebrick, in igniting chamber, middle flat bed is set, described middle flat bed offers the tune fire groove corresponding to each bar cloth fire band, described tune firebrick is located at and is adjusted on fiery groove.
The fiery groove of corresponding tune offers and stretches into for clamp the tune burner that firebrick position is adjusted in adjustment on the left or right sidewall of igniting chamber.
Corresponding to the kiln hood (often the mineral aggregate saved in sintering machine hopper has twice dynamo exploder meeting) of regnition, the anterior-posterior length of described igniting chamber is the length of two joint sintering machine hoppers, and described cloth fire band is two groups totally four.
For the mineral aggregate often saved in sintering machine hopper of evenly lighting a fire, the position that is staggeredly located is with by two cloth fire in each group.
Described secondary combustion chamber and igniting chamber are respectively equipped with the thermocouple detecting internal temperature.
Realize the firing temperature of 800 DEG C, the indoor temperature of described secondary combustion chamber is greater than 1000 DEG C, and the indoor temperature of igniting chamber is greater than 900 DEG C.
Beneficial effect of the present invention:
1, sintering machine fire coal igniting kiln hood of the present invention adopts cheap bituminous coal as fuel, and the high-temperature flue gas of generation is directly used in igniting.
2, the present invention only converted 1 time due to energy, and therefore the utilization rate of energy is higher than legacy equipment a lot, and low to the demanded fuel consumed, and adopts cheap common bituminous coal.
3, prototype equipment of the present invention normally runs a year and a half continuously, consumes bituminous coal every day less than 3 tons, energy-conservation more than 75%, in like manner reduces fume emission more than 75%.
4, the bituminous coal that uses of the present invention is also much cheap than coke, and operating cost saves more than 80%, ignition results, artificial substantially the same with legacy equipment with power consumption, does not bring other negative effects.
(4) accompanying drawing illustrates:
Fig. 1 is the structural representation of one embodiment of the present invention.
Fig. 2 is the top view of Fig. 1 embodiment.
Fig. 3 is the right view (removal primary zone) of Fig. 1 embodiment.
Figure number identifies: 1, primary zone; 2, secondary combustion chamber; 3, igniting chamber; 4, bituminous coal combustion machine; 5, air blast; 6, sintering machine hopper; 7, thermocouple; 8, cloth fire band; 9, firebrick is adjusted; 10, fiery groove is adjusted; 11, burner is adjusted; 12, support; 13, reductor.
(5) detailed description of the invention:
Below in conjunction with accompanying drawing illustrated embodiment, technical scheme of the present invention is described further.
Sintering machine fire coal igniting kiln hood of the present invention comprises the primary zone 1 be set up in frame 12, secondary combustion chamber 2 and igniting chamber 3, described primary zone 1, secondary combustion chamber 2 and igniting chamber 3 are built into by refractory brick and arrange heat-insulation layer, primary zone 1 is communicated with secondary combustion chamber 2 and is in the frame 12 of lowered height, described igniting chamber 3 is communicated with secondary combustion chamber 2 and is in the frame 12 of raised height, the antenna height of igniting chamber 3 corresponds to the locus of sintering machine, the sintering machine hopper 6 of sintering machine passes through from the below of igniting chamber 3, pass-through mode is the stepping of fore-and-aft direction, namely the intermittent movement that interval time is identical, as Fig. 1, Fig. 2, shown in Fig. 3.
Fire grate, bituminous coal combustion machine 4 and air blast 5 is configured with corresponding to primary zone 1, it is inner that described primary zone 1 is located at bituminous coal combustion machine 4, described fire grate is by reductor 13 transmission, be located at the coal feed point in primary zone 1 and remove between cinder notch, described air blast 5 is installed on the right flank of primary zone 1; Described secondary combustion chamber 2 is located on the left of primary zone 1, and secondary combustion chamber 2 top is provided with the thermocouple 7 detecting indoor temperature, ensures that indoor temperature is more than 1000 DEG C, as shown in Figure 1, Figure 2, Figure 3 shows.
Described igniting chamber 3 is located on the left of secondary combustion chamber 2, comprise by front and back layer wall, the chuck that left and right layer wall and upper lower arch layer wall surround, in chuck, above lower arch layer wall, middle flat bed is set, the left and right width of chuck corresponds to the width of sintering machine hopper 6, the anterior-posterior length of (kiln hood corresponding to regnition) described chuck corresponds to the total length of two joint sintering machine hoppers 6 below it, corresponding to two joint sintering machine hoppers 6, two groups of cloth fire bands 8 are offered on lower arch layer wall, often organize cloth fire band for two, front and back and in left and right directions (totally four cloth fire bands 8), the position that is staggeredly located of two, front and back in two groups of cloth fire bands 8, offer on middle flat bed corresponding to four cloth fire bands 8 and adjust fiery groove 10, on middle flat bed interval ornaments have locally to block adjust fiery groove 10(indirectly to block cloth fire band 8) tune firebrick 9, can according to the difference adjusting firebrick 9 quantity and position, and then regulate the homogeneous temperature of fiery cigarette in left and right directions sprayed from cloth fire band 8, for convenience of the position regulating firebrick 9, the fiery groove 10 of corresponding tune is offered and is adjusted burner 11 on the left side wall of chuck, facilitates clamp to stretch into adjustment in chuck and adjusts firebrick 9 position, equally, be provided with the thermocouple 7 detecting indoor temperature in the top of chuck, ensure that indoor temperature is more than 900 °, as shown in Figure 1, Figure 2, Figure 3 shows.
Running of the present invention:
1, bituminous coal enters in primary zone 1 by fire grate, the bituminous coal in bituminous coal combustion machine 4 combustion chamber and produce flue gas (main component be burning insufficient CO generated), and the flue gas of generation is blown into secondary combustion chamber 2 through air blast 5.
2, in secondary combustion chamber 2, owing to touching the oxygen in air, flue gas (CO) carries out the double purification burning of adiabatic high temperature, and temperature reaches more than 1000 DEG C, the flue dust that burning produces is dropped in the bottom of secondary combustion chamber 2 by burning till molten condition, then discharges from shoot door.
3, under the effect of air blast 5 wind-force, carry out pressure balance in the chuck that (more than 1000 DEG C) high-temperature flue gas enters igniting chamber 3, flue-gas temperature need remain on more than 900 DEG C.
4, continue under the effect of air blast 5 wind-force, the high-temperature flue gas in chuck is undertaken spraying (waterfall shape flame) by four cloth fire band 8 to two joint sintering machine hoppers 6, and then lights the anthracite be mixed with in the mineral aggregate of sintering machine hopper 6.
5, two joint sintering machine hoppers 6 are by the movement of two minor tick same times, complete from passing through below igniting chamber 3, by in process, often save the burning of sintering machine hopper 6 through two cloth fire band 8 pyrotechnics of the two groups of diverse locations in front and back, and realize twice igniting, make the anthracite be mixed in sintering machine hopper 6 mineral aggregate obtain Thorough combustion, and then placer is sintered into the mineral aggregate of bulk.
6, sintering process needs the indoor temperature of tight monitoring secondary combustion chamber 2 and igniting chamber 3, finds 1000 DEG C and 900 DEG C lower than setting, needs to add fire coal to primary zone 1 at once, increases its imperfect combustion degree, produces more CO flue gas in time.
Claims (8)
1. sintering machine fire coal igniting kiln hood, comprise primary zone (1), secondary combustion chamber (2) and igniting chamber (3), it is characterized in that: described primary zone (1) communicates with secondary combustion chamber (2), described secondary combustion chamber communicates with igniting chamber (3), is configured with fire grate, bituminous coal combustion machine (4) and air blast (5) corresponding to primary zone (1); Described igniting chamber (3) is located on the sintering machine hopper (6) of fore-and-aft direction stepping, the anterior-posterior length of igniting chamber (3) corresponds to the total length of more piece sintering machine hopper (6) below it, left and right width corresponds to the width often saving sintering machine hopper (6), igniting chamber (3) bottom offers front and back multicomponent and does not correspond to that the cloth of more piece sintering machine hopper (6) is fiery is with (8), often organizing cloth fire band (8) is two, front and back, and every bar cloth fire band (8) is left and right directions.
2. sintering machine fire coal igniting kiln hood according to claim 1, is characterized in that: be interval with the tune firebrick (9) that polylith blocks cloth fire band (8) in described igniting chamber (3).
3. sintering machine fire coal igniting kiln hood according to claim 2, it is characterized in that: described igniting chamber (3) bottom is arch upwards, igniting chamber arranges middle flat bed in (3), described middle flat bed offers tune fire groove (10) corresponding to each bar cloth fire band (8), described tune firebrick (9) is located at and is adjusted on fiery groove (10).
4. sintering machine fire coal igniting kiln hood according to claim 3, is characterized in that: the fiery groove of corresponding tune (10) offers and stretches into for clamp the tune burner (11) that firebrick (9) position is adjusted in adjustment on the left or right sidewall of igniting chamber (3).
5. according to the sintering machine fire coal igniting kiln hood in Claims 1 to 4 described in any one, it is characterized in that: the anterior-posterior length of described igniting chamber (3) is the length of two joint sintering machine hoppers (6), described cloth fire band (8) is two groups totally four.
6. sintering machine fire coal igniting kiln hood according to claim 5, is characterized in that: two cloth fire band (8) positions in each group are corresponding on the diverse location often saving sintering machine hopper (6) respectively.
7., according to the sintering machine fire coal igniting kiln hood in Claims 1 to 4 described in any one, it is characterized in that: described secondary combustion chamber (2) and igniting chamber (3) are respectively equipped with the thermocouple (7) detecting internal temperature.
8. sintering machine fire coal igniting kiln hood according to claim 7, it is characterized in that: the indoor temperature of described secondary combustion chamber (2) is greater than 1000 DEG C, the indoor temperature of igniting chamber (3) is greater than 900 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410157266.7A CN103940234B (en) | 2014-04-16 | 2014-04-16 | Coal-fired ignition kiln head for manganese ore sintering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410157266.7A CN103940234B (en) | 2014-04-16 | 2014-04-16 | Coal-fired ignition kiln head for manganese ore sintering machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103940234A CN103940234A (en) | 2014-07-23 |
| CN103940234B true CN103940234B (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410157266.7A Active CN103940234B (en) | 2014-04-16 | 2014-04-16 | Coal-fired ignition kiln head for manganese ore sintering machine |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4547146A (en) * | 1983-04-28 | 1985-10-15 | Kawasaki Steel Corp. | Ignition device for sintering machine |
| JPH06307773A (en) * | 1993-04-26 | 1994-11-01 | Nippon Steel Corp | Method and device for treating waste gas of cooler of sintering machine |
| JPH09227959A (en) * | 1996-02-22 | 1997-09-02 | Nippon Steel Corp | Production of sintered ore |
| JPH11325740A (en) * | 1998-05-08 | 1999-11-26 | Kobe Steel Ltd | Grate kiln iron ore pellet firing device |
| CN201081547Y (en) * | 2007-07-18 | 2008-07-02 | 张雷 | Tank-type power-saving sintering machine in iron works |
| JP2013129895A (en) * | 2011-12-22 | 2013-07-04 | Jfe Steel Corp | Sintering machine and method of supplying gas fuel |
| CN203810918U (en) * | 2014-04-16 | 2014-09-03 | 伍震洲 | Fire coal ignition kiln head of manganese ore sintering machine |
-
2014
- 2014-04-16 CN CN201410157266.7A patent/CN103940234B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4547146A (en) * | 1983-04-28 | 1985-10-15 | Kawasaki Steel Corp. | Ignition device for sintering machine |
| JPH06307773A (en) * | 1993-04-26 | 1994-11-01 | Nippon Steel Corp | Method and device for treating waste gas of cooler of sintering machine |
| JPH09227959A (en) * | 1996-02-22 | 1997-09-02 | Nippon Steel Corp | Production of sintered ore |
| JPH11325740A (en) * | 1998-05-08 | 1999-11-26 | Kobe Steel Ltd | Grate kiln iron ore pellet firing device |
| CN201081547Y (en) * | 2007-07-18 | 2008-07-02 | 张雷 | Tank-type power-saving sintering machine in iron works |
| JP2013129895A (en) * | 2011-12-22 | 2013-07-04 | Jfe Steel Corp | Sintering machine and method of supplying gas fuel |
| CN203810918U (en) * | 2014-04-16 | 2014-09-03 | 伍震洲 | Fire coal ignition kiln head of manganese ore sintering machine |
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| CN103940234A (en) | 2014-07-23 |
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