CN204388043U - A kind of coke powder burner - Google Patents
A kind of coke powder burner Download PDFInfo
- Publication number
- CN204388043U CN204388043U CN201420772258.9U CN201420772258U CN204388043U CN 204388043 U CN204388043 U CN 204388043U CN 201420772258 U CN201420772258 U CN 201420772258U CN 204388043 U CN204388043 U CN 204388043U
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- coke powder
- burner
- carbon dioxide
- inlet
- pressurizer
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 83
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 68
- 239000007789 gas Substances 0.000 claims abstract description 43
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 35
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 30
- 238000002485 combustion reaction Methods 0.000 claims abstract description 29
- 239000002893 slag Substances 0.000 claims abstract description 28
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 19
- 239000001301 oxygen Substances 0.000 claims abstract description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 239000000446 fuel Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 6
- 238000000746 purification Methods 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract description 2
- 239000002006 petroleum coke Substances 0.000 description 7
- 239000000571 coke Substances 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 235000010216 calcium carbonate Nutrition 0.000 description 1
- 239000011335 coal coke Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Abstract
本实用新型涉及一种焦粉燃烧装置，包括燃烧器、焦粉仓、焦粉引射器、二氧化碳加压机和氧气加压机。燃烧器设有熔渣池、多弯道和高低温气体混合区。高低温气体混合区的侧壁设有低温二氧化碳入口，顶部设有热气喷嘴。熔渣池的侧壁设有焦粉烧嘴，底部的一侧设有排渣口，排渣口与液渣接收器连接。二氧化碳加压机入口与二氧化碳管路连接，出口分别与焦粉引射器、低温二氧化碳入口和气体混合器连接。氧气加压机入口与氧气管路连接，出口连接到气体混合器，气体混合器连接到焦粉烧嘴。焦粉仓连接到焦粉引射器，焦粉引射器出口连接到焦粉烧嘴。本实用新型有效抑制燃烧过程氮氧化物排放，通过多弯道净化设备高效液态除尘，实现焦粉的清洁利用。
The utility model relates to a coke powder combustion device, which comprises a burner, a coke powder bin, a coke powder ejector, a carbon dioxide pressurizer and an oxygen pressurizer. The burner is equipped with a slag pool, multiple bends and a high and low temperature gas mixing zone. The side wall of the high and low temperature gas mixing zone is provided with a low temperature carbon dioxide inlet, and a hot gas nozzle is provided at the top. The side wall of the molten slag pool is provided with a coke powder burner, and one side of the bottom is provided with a slag discharge port, which is connected with the liquid slag receiver. The inlet of the carbon dioxide pressurizer is connected with the carbon dioxide pipeline, and the outlet is respectively connected with the coke powder ejector, the low-temperature carbon dioxide inlet and the gas mixer. The inlet of the oxygen pressurizer is connected to the oxygen pipeline, the outlet is connected to the gas mixer, and the gas mixer is connected to the coke powder burner. The coke powder bin is connected to the coke powder ejector, and the outlet of the coke powder ejector is connected to the coke powder burner. The utility model effectively suppresses the emission of nitrogen oxides in the combustion process, and realizes the clean utilization of coke powder through efficient liquid dust removal by multi-bend purification equipment.
Description
技术领域 technical field
本实用新型属于固体燃料燃烧设备及利用技术领域，涉及一种焦粉燃烧装置。 The utility model belongs to the technical field of solid fuel combustion equipment and utilization, and relates to a coke powder combustion device.
背景技术 Background technique
在煤的利用过程中，通过高温隔绝空气加热，先提取富含CH4、H2和CO等气体成分，剩下的是挥发分含量很低的焦炭，实现煤的分级利用。焦炭由于挥发分含量很低，因而在运输使用过程中爆炸危险较低，是一种较安全的燃料，但同时焦粉存在不易燃烧的缺点。采用新式焦粉燃烧装置可以实现焦炭的清洁利用，在充分利用焦炭能源的同时，不会对大气环境造成负担。 In the process of coal utilization, the gas components rich in CH 4 , H 2 and CO are first extracted by heating with high temperature isolation, and the rest is coke with low volatile content, so as to realize the graded utilization of coal. Due to its low volatile content, coke has a low risk of explosion during transportation and use, and is a safer fuel, but at the same time, coke powder has the disadvantage that it is not easy to burn. The use of a new coke powder combustion device can realize the clean utilization of coke, and while making full use of coke energy, it will not cause a burden to the atmospheric environment.
授权公告号为CN101865463A的中国发明专利公开一种石油焦粉燃烧器，包括依次同轴排列的进料管、一次风涡轮、二次风涡轮、燃烧筒，所述一次风通道中设有石油焦粉浓缩器，燃烧筒外套有二次风通道，二次风通道与二次风涡轮相连通，石油焦粉浓缩器分别与浓石油焦粉通道、淡石油焦粉通道连通，浓石油焦粉通道和淡石油焦粉通道分别与一级燃烧室、二级燃烧室连通，一级燃烧室与所述二级燃烧室相通，二级燃烧室与所述二次风通道连向炉膛。但是该专利不适用于煤焦粉的燃烧利用。 The Chinese invention patent with the authorized notification number CN101865463A discloses a petroleum coke powder burner, which includes a coaxially arranged feed pipe, a primary wind turbine, a secondary wind turbine, and a combustion cylinder. Petroleum coke is arranged in the primary air passage. Powder concentrator, the combustion tube jacket has a secondary air channel, the secondary air channel is connected with the secondary wind turbine, the petroleum coke powder concentrator is respectively connected with the thick petroleum coke powder channel, the light petroleum coke powder channel, and the concentrated petroleum coke powder channel And light petroleum coke powder channel communicates with the primary combustion chamber and secondary combustion chamber respectively, the primary combustion chamber communicates with the secondary combustion chamber, and the secondary combustion chamber connects with the secondary air passage to the furnace. But this patent is not applicable to the combustion utilization of coal coke powder.
实用新型内容 Utility model content
本实用新型的目的是提供一种焦粉燃烧装置，以充分利用焦炭资源，提供洁净的热源。 The purpose of the utility model is to provide a coke powder combustion device to make full use of coke resources and provide a clean heat source.
本实用新型的技术方案是：焦粉燃烧装置包括燃烧器、焦粉仓、焦粉引射器、二氧化碳加压机和氧气加压机。燃烧器设有熔渣池、多弯道和高低温气体混合区。多弯道位于燃烧器的中部，熔渣池位于多弯道的下部，高低温气体混合区位于多弯道的上部。高低温气体混合区的侧壁设有低温二氧化碳入口，顶部设有热气喷嘴。熔渣池的侧壁设有焦粉烧嘴，底部的一侧设有排渣口，排渣口与液渣接收器连接。二氧化碳加压机入口与二氧化碳管路连接，出口分别与焦粉引射器的引射风入口、低温二氧化碳入口和气体混合器连接。氧气加压机入口与氧气管路连接，出口连接到气体混合器，气体混合器连接到焦粉烧嘴。焦粉仓连接到焦粉引射器，焦粉引射器出口连接到焦粉烧嘴。 The technical scheme of the utility model is: the coke powder burning device includes a burner, a coke powder bin, a coke powder ejector, a carbon dioxide pressurizer and an oxygen pressurizer. The burner is equipped with a slag pool, multiple bends and a high and low temperature gas mixing zone. The multi-bend is located in the middle of the burner, the slag pool is located in the lower part of the multi-bend, and the high and low temperature gas mixing zone is located in the upper part of the multi-bend. The side wall of the high and low temperature gas mixing zone is provided with a low temperature carbon dioxide inlet, and a hot gas nozzle is provided at the top. The side wall of the molten slag pool is provided with a coke powder burner, and one side of the bottom is provided with a slag discharge port, which is connected with the liquid slag receiver. The inlet of the carbon dioxide pressurizer is connected with the carbon dioxide pipeline, and the outlet is respectively connected with the injection air inlet of the coke powder ejector, the low-temperature carbon dioxide inlet and the gas mixer. The inlet of the oxygen pressurizer is connected to the oxygen pipeline, the outlet is connected to the gas mixer, and the gas mixer is connected to the coke powder burner. The coke powder bin is connected to the coke powder ejector, and the outlet of the coke powder ejector is connected to the coke powder burner.
焦粉烧嘴的中心设有点火器，点火器为等离子点火器。多弯道设有等离子枪或清洁燃料烧嘴。二氧化碳加压机出口与焦粉引射器引射风入口、低温二氧化碳入口和气体混合器的连接管路设有阀门，氧气加压机与气体混合器的连接管路设有阀门。焦粉采用合适粒度和硬度，燃料中添加CaO或CaCO3粉末，添加量视焦粉中硫含量而定。 The center of the coke powder burner is provided with an igniter, which is a plasma igniter. Multiple bends feature plasma guns or clean fuel burners. Valves are provided in the connecting pipelines between the outlet of the carbon dioxide pressurizer and the injection air inlet of the coke powder ejector, the inlet of low-temperature carbon dioxide and the gas mixer, and the connecting pipelines between the oxygen pressurizer and the gas mixer are provided with valves. The coke powder adopts appropriate particle size and hardness, and CaO or CaCO 3 powder is added to the fuel, and the amount of addition depends on the sulfur content in the coke powder.
本实用新型焦粉燃烧装置采用O2和CO2混合气体作为焦粉燃烧的助燃剂，可以有效抑制燃烧过程氮氧化物排放，在焦粉燃料中添加CaO或CaCO3粉末可以控制SO2的排放，再通过多弯道净化装置的高效液态除尘，使得尾气粉尘排放浓度小于1mg/m3， PM2.5达到1～10μg/m3，实现焦粉的清洁利用。 The coke powder combustion device of the utility model adopts O2 and CO2 mixed gas as a combustion aid for coke powder combustion, which can effectively suppress the emission of nitrogen oxides during the combustion process, and adding CaO or CaCO3 powder to the coke powder fuel can control the emission of SO2 , and then through the high-efficiency liquid dedusting of the multi-bend purification device, the exhaust dust emission concentration is less than 1mg/m 3 , and the PM2.5 reaches 1-10μg/m 3 , realizing the clean utilization of coke powder.
附图说明 Description of drawings
图1为本实用新型焦粉燃烧装置的流程示意图。 Fig. 1 is a schematic flow chart of the coke powder combustion device of the present invention.
其中： in:
1—热气喷嘴、2—高低温气体混合区、3—等离子枪、4—排渣口、5—液渣接收器、6—低温二氧化碳入口、7—多弯道、8—焦粉仓、9—等离子点火器、10—焦粉烧嘴、11—二氧化碳加压机、12—氧气加压机、13—熔渣池、14—燃烧器、15—焦粉引射器、16—阀门、17—气体混合器。 1—hot gas nozzle, 2—high and low temperature gas mixing zone, 3—plasma gun, 4—slag discharge port, 5—liquid slag receiver, 6—low temperature carbon dioxide inlet, 7—multiple bends, 8—coke powder bin, 9—plasma Igniter, 10—coke powder burner, 11—carbon dioxide pressurizer, 12—oxygen pressurizer, 13—slag pool, 14—burner, 15—coke powder ejector, 16—valve, 17—gas mixer.
具体实施方式 Detailed ways
下面结合实施例和附图对本实用新型进行详细说明。本实用新型保护范围不限于实施例，本领域技术人员在权利要求限定的范围内做出任何改动也属于本实用新型保护的范围。 The utility model is described in detail below in conjunction with embodiment and accompanying drawing. The protection scope of the present utility model is not limited to the embodiments, and any changes made by those skilled in the art within the scope of the claims also belong to the protection scope of the present utility model.
本实用新型焦粉燃烧装置如图1所示，装置包括燃烧器14、焦粉仓8、焦粉引射器15、气体混合器17、二氧化碳加压机11和氧气加压机12。燃烧器设有熔渣池13、多弯道7和高低温气体混合区2，多弯道位于燃烧器的中部，熔渣池位于多弯道的下部，高低温气体混合区位于多弯道的上部。高低温气体混合区的侧壁设有低温二氧化碳入口6，顶部设有热气喷嘴1。熔渣池的侧壁设有焦粉烧嘴，底部的一侧设有排渣口4，排渣口与液渣接收器5连接。焦粉烧嘴的中心设有等离子点火器9。二氧化碳加压机入口与二氧化碳管路连接，出口分别与焦粉引射器的引射风入口、低温二氧化碳入口和气体混合器连接。氧气加压机入口与氧气管路连接，出口连接到气体混合器，气体混合器连接到焦粉烧嘴。焦粉仓连接到焦粉引射器，焦粉引射器出口连接到焦粉烧嘴。多弯道7设有等离子枪3。二氧化碳加压机出口与焦粉引射器引射风入口、低温二氧化碳入口和氧气加压机出口的连接管路设有阀门16，所述氧气加压机与焦粉烧嘴的连接管路设有阀门。 The coke powder combustion device of the present utility model is shown in Figure 1, and device comprises burner 14, coke powder bin 8, coke powder injector 15, gas mixer 17, carbon dioxide pressurizer 11 and oxygen pressurizer 12. The burner is equipped with a slag pool 13, a multi-bend 7 and a high-low temperature gas mixing zone 2, the multi-bend is located in the middle of the burner, the slag pool is located in the lower part of the multi-bend, and the high-low temperature gas mixing zone is located in the multi-bend upper part. A low temperature carbon dioxide inlet 6 is provided on the side wall of the high and low temperature gas mixing zone, and a hot gas nozzle 1 is provided on the top. The side wall of the molten slag pool is provided with a coke powder burner, and one side of the bottom is provided with a slag outlet 4 connected to a liquid slag receiver 5 . The center of the coke powder burner is provided with a plasma igniter 9 . The inlet of the carbon dioxide pressurizer is connected with the carbon dioxide pipeline, and the outlet is respectively connected with the injection air inlet of the coke powder ejector, the low-temperature carbon dioxide inlet and the gas mixer. The inlet of the oxygen pressurizer is connected to the oxygen pipeline, the outlet is connected to the gas mixer, and the gas mixer is connected to the coke powder burner. The coke powder bin is connected to the coke powder ejector, and the outlet of the coke powder ejector is connected to the coke powder burner. The multi-bend 7 is provided with a plasma gun 3 . The connecting pipeline between the outlet of the carbon dioxide pressurizer and the air inlet of the coke powder injector, the inlet of low-temperature carbon dioxide and the outlet of the oxygen pressurizer is provided with a valve 16, and the connecting pipeline between the oxygen pressurizer and the coke powder burner is provided with a valve 16. There are valves.
本实用新型焦粉燃烧装置的工作过程是，从二氧化碳管路来的CO2气体，经过二氧化碳加压机11加压后一路作为焦粉的输送气体，通过焦粉引射器15带动焦粉仓中的焦粉从焦粉烧嘴喷出。从氧气管路来的O2经氧气加压机12加压后与第二路CO2气体混合作为焦粉烧嘴的助燃风，O2与CO2比例从100～0:0～100可调， 焦粉烧嘴中心的等离子点火器用来在启动时创造高温环境点燃焦粉，待焦粉燃烧稳定后关闭等离子点火器。焦粉烧嘴的燃烧温度达到1500℃以上，燃烧产生的大部分灰分呈熔融状态，沿燃烧装置底部的斜坡流到排渣口，燃烧产生的高温烟气经过右侧的多弯道净化设备将烟气中剩余的灰分去除干净，多弯道净化设备采用等离子枪保持气体温度高于1500℃，使得烟气中灰分保持熔融状态可以被完全去除掉，液渣沿右侧壁面流到排渣口，从排渣口出来的液渣进入液渣接收器。经过多弯道净化装置后的清洁高温烟气与第三路CO2气体混合，温度降低到使用温度，从热气喷嘴1喷出利用。 The working process of the coke powder combustion device of the utility model is that the CO2 gas from the carbon dioxide pipeline is pressurized by the carbon dioxide pressurizer 11 and used as the transport gas of the coke powder all the way, and the coke powder in the coke powder bin is driven by the coke powder ejector 15. The coke powder is ejected from the coke powder burner. The O2 from the oxygen pipeline is pressurized by the oxygen pressurizer 12 and mixed with the second CO2 gas as the combustion-supporting air for the coke powder burner. The ratio of O2 to CO2 is adjustable from 100 to 0:0 to 100 , The plasma igniter in the center of the coke powder burner is used to create a high temperature environment to ignite the coke powder when starting, and turn off the plasma igniter after the coke powder burns stably. The combustion temperature of the coke powder burner reaches above 1500°C, most of the ash produced by the combustion is in a molten state, and flows along the slope at the bottom of the combustion device to the slag discharge port, and the high-temperature flue gas produced by combustion passes through the multi-bend purification equipment on the right. The remaining ash in the flue gas is removed. The multi-bend purification equipment uses a plasma gun to keep the gas temperature higher than 1500°C, so that the ash in the flue gas can be completely removed in a molten state, and the liquid slag flows along the right side wall to the slag discharge port. , the liquid slag coming out of the slag outlet enters the liquid slag receiver. The clean high-temperature flue gas after passing through the multi-bend purification device is mixed with the third CO2 gas, the temperature is lowered to the use temperature, and it is sprayed out from the hot gas nozzle 1 for utilization.
Claims (4)
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| CN201420772258.9U CN204388043U (en) | 2014-12-10 | 2014-12-10 | A kind of coke powder burner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20220120441A1 (en) * | 2019-02-28 | 2022-04-21 | Eco Research Institute Ltd. | Powder fuel combustion apparatus and combustion method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20220120441A1 (en) * | 2019-02-28 | 2022-04-21 | Eco Research Institute Ltd. | Powder fuel combustion apparatus and combustion method |
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Granted publication date: 20150610 |
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