CN104818382A - Nickel ore sintering machine - Google Patents
Nickel ore sintering machine Download PDFInfo
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- CN104818382A CN104818382A CN201510289092.4A CN201510289092A CN104818382A CN 104818382 A CN104818382 A CN 104818382A CN 201510289092 A CN201510289092 A CN 201510289092A CN 104818382 A CN104818382 A CN 104818382A
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Abstract
The invention discloses a nickel ore sintering machine comprising a plurality of vertical kilns and a smoke pipe for concentrated discharge of tail gas, wherein a dust removal cylinder is arranged between each vertical kiln and the smoke pipe; each vertical kiln comprises a kiln body composed of an upper section kiln body, a middle section kiln body and a lower section kiln body; a feed port and a tail gas discharge port are formed in the top part of the upper section kiln body; a center tower gate is arranged at a discharge port of the lower section kiln body; the lower section kiln body relative to the center tower gate is set as an arc-shaped kiln body which is formed by expanding the middle part outwards and can guide side wind in a furnace to converge to the center of the furnace; a side air inlet is formed in the middle section kiln body; and a plurality of air inlets are formed in the wall of the smoke pipe, and different air inlets are formed in different cross sections of the smoke pipe. By forming the plurality of the air inlets, the nickel ore sintering machine disclosed by the invention improves the tail gas discharge amount of a unit time and improves the discharging efficiency; and by virtue of the arc-shaped kiln body, the wind is delivered to center tower gate and the center of an internal furnace combustion zone, and thus the nickel ore sintering efficiency is improved.
Description
Technical field
The present invention relates to a kind of nickel minerals processing units, particularly a kind of nickel minerals sinter machine.
Background technology
At present, the shaft kiln of China's Cement industry is that single tower is combed annular unload material way, the kiln body of shaft kiln is up and down in straight-tube shape, the maximum drawback of this shaft kiln is that ' apoplexy ' is not enough, easily " loose core ", " limit wind " is superfluous, thus make the fired coal combustion in pellet uneven, cause a large amount of losses of heat energy, clinker quality is low, output reduces, and then reduction labor productivity, and the tower of major diameter shaft kiln is combed bulky, manufacture and difficulty is installed, normally burning till and normal discharging of grog in kiln cannot be ensured, fixed jaw quick abrasion, replacement cycle is short, discharging-material size is large, drop temperature is high, further increase thermosteresis, secondly, the tail gas produced in nickel minerals production process, through two smoke exhaust pipes at kiln body top, the chimney vertically arranged by one is again directly emitted, for reducing the pollution of tail gas, generally the height of chimney can be arranged on 50-100 rice, because chimney is too high, higher requirement is proposed to the power of exhaust emissions, this just makes the discharge efficiency of tail gas low, and discharge is unclean, very easily causes partial tail gas to be back to production environment, pollute production environment, harm workman's is healthy.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, provides a kind of reasonable in design, easy to use, improves the nickel minerals sinter machine of sintering efficiency.
Technical problem to be solved by this invention is realized by following technical scheme, and the present invention is a kind of nickel minerals sinter machine, comprises the chimney of some shaft kilns and a concentrated emission, is equipped with dedusting cylinder between each shaft kiln and chimney;
Described shaft kiln comprises by epimere kiln body, the kiln body that stage casing kiln body and hypomere kiln body are formed, the top of epimere kiln body is provided with charging opening and exhaust port, the bottom of hypomere kiln body is provided with discharge opening, discharge opening place is equipped with central tower and combs, the hypomere kiln body of combing relative with central tower is set to outwards to be expanded the arcuation kiln body being formed and guide the stove inner edge wind direction stove heart to restrain by centre, described epimere kiln body is up big and down small inverted cone shape kiln body, stage casing kiln body is up-small and down-big taper kiln body, the kiln wall of stage casing kiln body is provided with several side air admission mouths along the axis of kiln body, side air admission mouth is towards the downward-sloping setting in center of kiln body,
The top of described dedusting cylinder is provided with the inlet pipe connected with kiln body exhaust port, and the bottom of dedusting cylinder is provided with cinder-discharging port, and the side of dedusting cylinder is provided with air outlet, and the lower port of inlet pipe to extend in dedusting cylinder and is arranged on the below of air outlet;
The barrel of described chimney is provided with some inlet mouths, and different inlet mouths is arranged on the different cross section of chimney, and inlet mouth place is provided with the pipe connecting tangent with chimney barrel, and pipe connecting connects with the air outlet on dedusting cylinder sidewall.
Technical problem to be solved by this invention can also be realized further by following technical scheme, box feed bin is provided with in the below of described shaft kiln, the top of box feed bin is provided with the feed-pipe connected with discharge opening, the bottom of box feed bin is provided with discharge nozzle, close the two-bolt lock wind mechanism of feed-pipe when closing discharge nozzle, discharging when described box feed bin is provided with charging, described two-bolt lock wind mechanism comprises the discharge lock air lock system be located on feed-pipe and the charging be located on discharge nozzle lock air lock system.
Technical problem to be solved by this invention can also be realized further by following technical scheme, described discharge lock air lock system comprises the upper flashboard coordinated with feed-pipe, sidewall above feed-pipe is circumferentially with along body and extracts the upper flashboard extraction opening that upper flashboard makes feed-pipe opening and closing, described upper flashboard is hinged with the upper hinge support be located on the tube wall of upper flashboard extraction opening both sides.
Technical problem to be solved by this invention can also be realized further by following technical scheme, described charging lock air lock system comprises the lower flashboard coordinated with discharge nozzle, sidewall above discharge nozzle is circumferentially with along body and extracts the lower flashboard extraction opening that lower flashboard makes discharge nozzle opening and closing, described lower flashboard is hinged with the lower hinge support be located on the tube wall of lower flashboard extraction opening both sides.
Technical problem to be solved by this invention can also be realized further by following technical scheme, and described inlet mouth is along the barrel helically formula arrangement of chimney.
Technical problem to be solved by this invention can also be realized further by following technical scheme, the vertical spaced set of described inlet mouth.
Technical problem to be solved by this invention can also be realized further by following technical scheme, and the diameter of described inlet mouth is identical.
Technical problem to be solved by this invention can also be realized further by following technical scheme, and described chimney is up-small and down-big conical cylinder.
Technical problem to be solved by this invention can also be realized further by following technical scheme, and inlet mouth is located at the middle part of chimney.
Technical problem to be solved by this invention can also be realized further by following technical scheme, and the exhaust port on same shaft kiln is provided with two, left and right, and two tail gas venting ports all connect with the inlet pipe of same dedusting cylinder.
The present invention, by establishing the chimney of a concentrated emission, is utilized a large amount of high-temperature flue gas produced during sintering, can form heat power outward, make full use of these heat powers, not only can save energy and reduce the cost when being arranged by chimney, and can decreasing pollution; If dedusting cylinder, under thermodynamic effect, waste gas is extracted out from air outlet, there is good dust removing effects; If some inlet mouths, improve unit time exhaust emissions amount, improve discharge efficiency; The tube wall of pipe connecting and the barrel of chimney tangent, make the waste gas spiral escalation entered in chimney, improve the lift velocity of waste gas in chimney, save exhaust cost; Different inlet mouths is arranged on the different cross section of chimney, makes to revolve rail lift mark not overlapping, improves to revolve further to rise power; If arcuation kiln body, stove inner edge wind being restrained to the stove heart when moving to sidewall, effectively wind being delivered to the center of central tower comb and stove combustion band, make kiln inner edge wind and central wind equilibrium, not inclined wind, thus ensure that in kiln, traversing section surface temperature is basically identical, in stove, material is steadily descending in order; If inverted cone shape kiln body, improve air-supply power; Kiln body place, stage casing establishes side air admission mouth, ensures that in stove, wind-force is balanced everywhere, ensures temperature everywhere in kiln; Side air admission mouth, towards the downward-sloping setting in center of kiln body, is avoided zone of combustion moves, and the higher fuel burning ahead of time making kiln body top of top temperature, lime raw burn amount increases, and burn uneven, unloading ash capacity is also uneven.Compared with prior art, it is reasonable in design, easy to operate, for good thermal regulation created by the grog firing high-yield high-quality amount fast, improves the sintering efficiency of nickel minerals.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of chimney;
Fig. 3 is the stretch-out view of chimney.
Embodiment
Referring to accompanying drawing, further describe concrete technical scheme of the present invention, so that those skilled in the art understands the present invention further, and do not form the restriction to its right.
With reference to Fig. 1-3, a kind of nickel minerals sinter machine, comprises the chimney 1 of some shaft kilns and a concentrated emission, is equipped with dedusting cylinder 4 between each shaft kiln and chimney 1;
Described shaft kiln comprises by epimere kiln body 9, the kiln body that stage casing kiln body 10 and hypomere kiln body 11 are formed, the top of epimere kiln body 9 is provided with charging opening 8 and exhaust port 7, the bottom of hypomere kiln body 11 is provided with discharge opening 12, discharge opening 12 place is equipped with central tower and combs 18, be set to outwards to be expanded the arcuation kiln body being formed and guide the stove inner edge wind direction stove heart to restrain by centre with central tower 18 relative hypomere kiln bodies 11 of combing, described epimere kiln body 9 is up big and down small inverted cone shape kiln body, stage casing kiln body 10 is up-small and down-big taper kiln body, the kiln wall of stage casing kiln body 10 is provided with several side air admission mouths 19 along the axis of kiln body, side air admission mouth 19 is towards the downward-sloping setting in center of kiln body,
The top of described dedusting cylinder 4 is provided with the inlet pipe 5 connected with kiln body exhaust port 7, and the bottom of dedusting cylinder 4 is provided with cinder-discharging port 6, and the side of dedusting cylinder 4 is provided with air outlet, and the lower port of inlet pipe 5 to extend in dedusting cylinder 4 and is arranged on the below of air outlet;
The barrel of described chimney 1 is provided with some inlet mouths 2, and different inlet mouths 2 is arranged on the different cross section of chimney 1, and inlet mouth 1 place is provided with the pipe connecting 3 tangent with chimney barrel, and pipe connecting 3 connects with the air outlet on dedusting cylinder 4 sidewall.
Box feed bin 17 is provided with in the below of described shaft kiln, the top of box feed bin 17 is provided with the feed-pipe 13 connected with discharge opening 12, the bottom of box feed bin 17 is provided with discharge nozzle 15, close the two-bolt lock wind mechanism of feed-pipe 13 when closing discharge nozzle 15, discharging when described box feed bin 17 is provided with charging, described two-bolt lock wind mechanism comprises the discharge lock air lock system be located on feed-pipe 13 and the charging be located on discharge nozzle 15 lock air lock system.
Described discharge lock air lock system comprises the upper flashboard 14 coordinated with feed-pipe 13, sidewall above feed-pipe 13 is circumferentially with along body and extracts the upper flashboard extraction opening that upper flashboard 14 makes feed-pipe 13 opening and closing, described upper flashboard 14 is hinged with the upper hinge support be located on the tube wall of upper flashboard extraction opening both sides.
Described charging lock air lock system comprises the lower flashboard 16 coordinated with discharge nozzle 15, sidewall above discharge nozzle 15 is circumferentially with along body and extracts the lower flashboard extraction opening that lower flashboard 16 makes discharge nozzle opening and closing, described lower flashboard is hinged with the lower hinge support be located on the tube wall of lower flashboard extraction opening both sides.
Described inlet mouth 2 is along the barrel helically formula arrangement of chimney 1.
The vertical spaced set of described inlet mouth 2.
The diameter of described inlet mouth 2 is identical.
Described chimney 1 is up-small and down-big conical cylinder.
Inlet mouth 2 is located at the middle part of chimney 1.
Exhaust port 7 on same shaft kiln is provided with two, left and right, and two tail gas venting ports 7 all connect with the inlet pipe 5 of same dedusting cylinder 4.
Claims (10)
1. a nickel minerals sinter machine, is characterized in that: the chimney comprising some shaft kilns and a concentrated emission, is equipped with dedusting cylinder between each shaft kiln and chimney;
Described shaft kiln comprises by epimere kiln body, the kiln body that stage casing kiln body and hypomere kiln body are formed, the top of epimere kiln body is provided with charging opening and exhaust port, the bottom of hypomere kiln body is provided with discharge opening, discharge opening place is equipped with central tower and combs, the hypomere kiln body of combing relative with central tower is set to outwards to be expanded the arcuation kiln body being formed and guide the stove inner edge wind direction stove heart to restrain by centre, described epimere kiln body is up big and down small inverted cone shape kiln body, stage casing kiln body is up-small and down-big taper kiln body, the kiln wall of stage casing kiln body is provided with several side air admission mouths along the axis of kiln body, side air admission mouth is towards the downward-sloping setting in center of kiln body,
The top of described dedusting cylinder is provided with the inlet pipe connected with kiln body exhaust port, and the bottom of dedusting cylinder is provided with cinder-discharging port, and the side of dedusting cylinder is provided with air outlet, and the lower port of inlet pipe to extend in dedusting cylinder and is arranged on the below of air outlet;
The barrel of described chimney is provided with some inlet mouths, and different inlet mouths is arranged on the different cross section of chimney, and inlet mouth place is provided with the pipe connecting tangent with chimney barrel, and pipe connecting connects with the air outlet on dedusting cylinder sidewall.
2. nickel minerals sinter machine according to claim 1, it is characterized in that: be provided with box feed bin in the below of described shaft kiln, the top of box feed bin is provided with the feed-pipe connected with discharge opening, the bottom of box feed bin is provided with discharge nozzle, close the two-bolt lock wind mechanism of feed-pipe when closing discharge nozzle, discharging when described box feed bin is provided with charging, described two-bolt lock wind mechanism comprises the discharge lock air lock system be located on feed-pipe and the charging be located on discharge nozzle lock air lock system.
3. nickel minerals sinter machine according to claim 2, it is characterized in that: described discharge lock air lock system comprises the upper flashboard coordinated with feed-pipe, sidewall above feed-pipe is circumferentially with along body and extracts the upper flashboard extraction opening that upper flashboard makes feed-pipe opening and closing, described upper flashboard is hinged with the upper hinge support be located on the tube wall of upper flashboard extraction opening both sides.
4. nickel minerals sinter machine according to claim 2, it is characterized in that: described charging lock air lock system comprises the lower flashboard coordinated with discharge nozzle, sidewall above discharge nozzle is circumferentially with along body and extracts the lower flashboard extraction opening that lower flashboard makes discharge nozzle opening and closing, described lower flashboard is hinged with the lower hinge support be located on the tube wall of lower flashboard extraction opening both sides.
5. nickel minerals sinter machine according to claim 1, is characterized in that: described inlet mouth is along the barrel helically formula arrangement of chimney.
6. nickel minerals sinter machine according to claim 5, is characterized in that: the vertical spaced set of described inlet mouth.
7. nickel minerals sinter machine according to claim 1, is characterized in that: the diameter of described inlet mouth is identical.
8. nickel minerals sinter machine according to claim 1, is characterized in that: described chimney is up-small and down-big conical cylinder.
9. nickel minerals sinter machine according to claim 1, is characterized in that: inlet mouth is located at the middle part of chimney.
10. nickel minerals sinter machine according to claim 1, is characterized in that: the exhaust port on same shaft kiln is provided with two, left and right, and two tail gas venting ports all connect with the inlet pipe of same dedusting cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510289092.4A CN104818382B (en) | 2015-06-01 | 2015-06-01 | Nickel minerals sintering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510289092.4A CN104818382B (en) | 2015-06-01 | 2015-06-01 | Nickel minerals sintering machine |
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| CN104818382A true CN104818382A (en) | 2015-08-05 |
| CN104818382B CN104818382B (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510289092.4A Active CN104818382B (en) | 2015-06-01 | 2015-06-01 | Nickel minerals sintering machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105483366A (en) * | 2016-01-20 | 2016-04-13 | 连云港宝翔铸造有限公司 | Method for producing ferro-nickel through low-grade high-iron lateritic nickel ores |
| WO2016192400A1 (en) * | 2015-06-01 | 2016-12-08 | 连云港宝翔铸造有限公司 | Tail gas dust removing chimney |
| CN112179152A (en) * | 2019-09-03 | 2021-01-05 | 相庆柱 | Spiral centrifugal chimney |
| CN114959256A (en) * | 2022-05-27 | 2022-08-30 | 安钢集团信阳钢铁有限责任公司 | Oxygen enrichment system of sintering machine |
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| GB950071A (en) * | 1960-05-24 | 1964-02-19 | Yawata Iron & Steel Co | Apparatus for pulsating blast furnace internal pressure |
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2015
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Patent Citations (4)
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| KR20010062990A (en) * | 1999-12-21 | 2001-07-09 | 이구택 | Powder sintered ore charging apparatus and the method by using division rate occurrence quantity automatic control |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016192400A1 (en) * | 2015-06-01 | 2016-12-08 | 连云港宝翔铸造有限公司 | Tail gas dust removing chimney |
| CN105483366A (en) * | 2016-01-20 | 2016-04-13 | 连云港宝翔铸造有限公司 | Method for producing ferro-nickel through low-grade high-iron lateritic nickel ores |
| CN105483366B (en) * | 2016-01-20 | 2017-11-24 | 连云港宝翔铸造有限公司 | A kind of method of low-grade high ferro laterite nickel ore and producing ferronickel |
| CN112179152A (en) * | 2019-09-03 | 2021-01-05 | 相庆柱 | Spiral centrifugal chimney |
| CN114959256A (en) * | 2022-05-27 | 2022-08-30 | 安钢集团信阳钢铁有限责任公司 | Oxygen enrichment system of sintering machine |
| CN114959256B (en) * | 2022-05-27 | 2023-08-18 | 安钢集团信阳钢铁有限责任公司 | Oxygen enrichment system of sintering machine |
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| CN104818382B (en) | 2016-09-21 |
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Effective date of registration: 20180315 Address after: Baihe Town, Qingpu District, Shanghai City, 201700 waiqingsong Highway No. 3560 No. 4 floor 2 East Building A room 2145 Patentee after: Shanghai Han column Environmental Protection Engineering Co., Ltd. Address before: 222300 Donghai County City, Jiangsu Province, rural industrial park Patentee before: Lianyun Harbour precious Xiang casting company limited |
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Effective date of registration: 20180605 Address after: 222000 Jiangsu province Lianyungang city Donghai County hump village former rose Village Industrial Park Patentee after: Lianyungang Bai Shun glaze Co., Ltd. Address before: 201700 room 2145, A District, 2 floor, 4 building, 4 building, No. 3560, Baihe Town, Qingpu District, Shanghai. Patentee before: Shanghai Han column Environmental Protection Engineering Co., Ltd. |