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CN103740412B - Novel pulverized coal nozzle and pulverized coal feeding mode - Google Patents

Novel pulverized coal nozzle and pulverized coal feeding mode Download PDF

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Publication number
CN103740412B
CN103740412B CN 201310740479 CN201310740479A CN103740412B CN 103740412 B CN103740412 B CN 103740412B CN 201310740479 CN201310740479 CN 201310740479 CN 201310740479 A CN201310740479 A CN 201310740479A CN 103740412 B CN103740412 B CN 103740412B
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pulverized
coal
novel
nozzle
feeding
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CN 201310740479
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Chinese (zh)
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CN103740412A (en )
Inventor
刘自涛
陈杰
薛康
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西安航天远征流体控制股份有限公司
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Abstract

本发明提供一种新型粉煤烧嘴及粉煤供给方式,粉煤烧嘴设置有粉煤入口,粉煤入口通道与煤粉通道外壁相切,与煤粉通道中心线夹角为68°;在煤粉通道中平行设置有两条钢筋,使粉煤通道内形成旋流粉煤通道,两条钢筋螺旋盘绕在煤粉通道内壁上,在粉煤通道入口盘绕角度为35°,在粉煤通道出口盘绕角度为60°。 The present invention provides a novel way of feeding pulverized coal burner and pulverized coal, the pulverized coal pulverized coal burner is provided with an inlet, an inlet passage and pulverized coal pulverized coal passage is tangential to the outer wall, an angle of 68 ° with the center line of the pulverized coal passage; pulverized coal passage provided in parallel with two bars, forming the pulverized coal within the pulverized coal passage swirl channels, the two steel spirally wound on the inner wall of the pulverized coal passage, the inlet passage of the pulverized coal winding angle 35 °, pulverized coal winding angle of the outlet channel 60 °. 煤粉和氮气沿着由两条钢筋之间形成的旋流粉煤通道旋转向前,以一定角度旋转喷出粉煤通道,在喷出烧嘴口之后粉煤仍然带有一定的悬度。 Coal and nitrogen gas swirl rotating forward along the pulverized coal passage formed between two steel, an angle of rotation of the pulverized coal discharge passage after the discharge port of the pulverized coal burner is still suspended with a certain degree. 本发明能够保证煤粉和氧化剂的充分混合燃烧,能够均匀的将粉煤输送到炉膛内部,并且使用稳定可靠。 The present invention can ensure thorough mixing of the oxidant and combustion of pulverized coal, pulverized coal can be uniformly delivered to the interior of the furnace, and reliable use.

Description

一种新型粉煤烧嘴及粉煤供给方式 A novel pulverized coal burner and a pulverized coal supply mode

技术领域 FIELD

[0001] 本发明涉及干粉煤气化装置中的粉煤烧嘴。 [0001] The present invention relates to pulverized coal burners of dry coal gasification plant.

背景技术 Background technique

[0002] 在煤化工领域中干粉加压煤气化工艺以其煤种适应广、碳转化率高、氧耗低、热效率高、低污染等突出优点被广泛应用。 [0002] In the field of coal in the dry chemical pressurized coal gasification process for its adaptability and high carbon conversion, low oxygen consumption, high thermal efficiency, low pollution and other advantages it is widely used. 该工艺在装置开车阶段由专门的点火开工系统进行升温、升压,待炉膛参数满足设计要求后装置开始投煤运行。 This process is performed by a dedicated driving stage ignition device to start heating the system, the booster, until the furnace parameters satisfy the design requirements cast coal apparatus starts operation.

[0003] 干粉煤气化装置中粉煤烧嘴的作用就是把粉煤和氧气输送进气化装置的炉膛,并保证两者混合均匀,其中最重要的煤粉供给方式,现有粉煤烧嘴的供给方式一般是直流射流,在煤粉通道没有设置旋流装置,不能保证煤粉和氧化剂的充分混合燃烧。 [0003] Role of dry pulverized coal gasification means the pulverized coal burner and oxygen is fed into the furnace in the gasification unit, and to ensure a uniform mixture of both, the most important coal supply mode, the conventional pulverized coal burner the supply mode is generally DC jet, no swirl means disposed in the pulverized coal passage, can not guarantee thorough mixing of pulverized coal and combustion oxidant. 如何能够均匀的将粉煤输送到炉膛内部一直是大家研宄的方向, How can a uniform pulverized coal delivered to the interior of the furnace has been the direction of a Subsidiary everyone,

发明内容 SUMMARY

[0004] 本发明的目的是提供一种新型粉煤烧嘴及粉煤供给方式,不仅结构简单,而且能够轻易的将粉煤均匀的输送到炉膛内部。 [0004] The object of the present invention is to provide a novel pulverized coal burner and a pulverized coal supply mode, only a simple structure, and can be easily pulverized coal delivered to the interior of the furnace uniformly.

[0005] 本发明的技术方案是:一种新型粉煤烧嘴,其特征是粉煤烧嘴设置有粉煤入口,粉煤入口通道与煤粉通道外壁相切,与煤粉通道中心线夹角为68° ;在煤粉通道中平行设置有两条钢筋,使粉煤通道内形成旋流粉煤通道,两条钢筋螺旋盘绕在煤粉通道内壁上,在粉煤通道入口盘绕角度为35°,在粉煤通道出口盘绕角度为60°。 [0005] aspect of the present invention is: a novel pulverized coal burner, characterized in that the inlet of the pulverized coal burner provided with a pulverized coal, the pulverized coal and the pulverized coal passage an outer wall of the inlet passage tangential to the center of the pulverized coal passage and clamp angle is 68 °; the pulverized coal passage disposed in parallel with two bars, forming the pulverized coal within the pulverized coal passage swirl channels, the two steel spirally wound on the inner wall of the pulverized coal passage, the inlet passage 35 of the pulverized coal winding angle °, at the outlet of the pulverized coal passage is winding angle 60 °.

[0006] 一种新型粉煤供给方式,其特征是,煤粉和氮气沿着由两条钢筋之间形成的旋流粉煤通道旋转向前,以一定角度旋转喷出粉煤通道,在喷出烧嘴口之后粉煤仍然带有一定的旋度。 [0006] A novel way of feeding pulverized coal, wherein pulverized coal and the pulverized coal nitrogen rotated forward along the swirler passage formed between two steel, an angle of rotation of the pulverized coal discharge passage, the discharge after a pulverized coal burner mouth still with a certain degree of rotation.

[0007] 本发明能够保证煤粉和氧化剂的充分混合燃烧,能够均匀的将粉煤输送到炉膛内部,并且使用稳定可靠。 [0007] The present invention can ensure thorough mixing of the oxidant and combustion of pulverized coal, pulverized coal can be uniformly delivered to the interior of the furnace, and reliable use.

附图说明 BRIEF DESCRIPTION

[0008] 图1是本实用新型的结构示意图。 [0008] FIG. 1 is a structural diagram of the present invention novel.

[0009] 图2是图1的AA剖视图。 [0009] FIG. 2 is an AA cross-sectional view of FIG.

具体实施方式 detailed description

[0010] 如图1和图2所示,本发明粉煤烧嘴设置有一个粉煤入口N2,煤粉由氮气携带着从N2入口进入烧嘴,N2入口通道与煤粉通道外壁相切,与煤粉通道中心线夹角为68° ;在煤粉通道中平行设置有两条直径为20mm的钢筋1,螺旋盘绕在煤粉通道内壁上,使粉煤通道内形成一个旋流粉煤通道,在粉煤通道入口缠绕角度为35°,在粉煤通道出口缠绕角度为60。 [0010] FIGS. 1 and 2, the pulverized coal burner of the present invention is provided with a N2 inlet of the pulverized coal, the pulverized coal into the burner from the nitrogen carries N2 inlet, N2 inlet passage tangential to the outer wall of the pulverized coal passage, angle with the center line of the pulverized coal passage 68 °; pulverized coal passage disposed in parallel with two 20mm diameter steel bar 1, spirally wound on the inner wall of the pulverized coal passage, so that a swirl pulverized coal passage is formed within the pulverized coal passage in the pulverized coal channel inlet the winding angle of 35 °, at the outlet of the pulverized coal passage 60 winding angle. .

[0011] 煤粉和氮气沿着有两条钢筋I之间形成的旋流粉煤通道旋转向前,以一定角度旋转喷出粉煤通道,在喷出烧嘴口之后粉煤仍然带有一定的旋度,因此就能加快与氧气的混合程度,这样能够保障烧嘴的充分燃烧。 [0011] Coal and nitrogen along with a forward rotation is formed between the two steel I swirl pulverized coal passage, the discharge angle of rotation of the pulverized coal passage, after the discharge port of the pulverized coal burner with a certain still curl, so we can speed up the degree of mixing with oxygen, so that can guarantee full combustion burner.

[0012] 新型的粉煤供给方式在其他多种供给方式的基础上进行了全新的设计,利用钢筋在粉煤通道内壁面上缠绕,使粉煤通道形成旋流粉煤通道,类似于枪管的膛线,旋流粉煤通道数量可以根据粉煤的进口数量进行调整,可以是一个也可以是多个,旋转的角度和螺距也根据数量的不同有所不同,目的都是为了保证粉煤能够均匀的喷出烧嘴头部,并且更快更高效的与氧气混合燃烧。 [0012] The novel manner of the pulverized coal is supplied on the basis of a variety of other ways of supplying the new design, the use of an inner wall surface of the reinforcement is wound on the pulverized coal passage, so that the pulverized coal passage swirl pulverized coal passage is formed, similar to the barrel rifling, the number of swirler channels pulverized coal pulverized coal can be adjusted according to the number of inlet may be one or a plurality of rotation angle and the pitch is also different depending on the number of the objective is to be able to guarantee the pulverized coal uniform discharge burner head, and faster and more efficient mixing and combustion of oxygen.

[0013] 该设计已经通过计算和试验验证,即将应用于实际当中,由于该粉煤供给方式制作简单,省去了盘管等繁琐工序,使加工费用有效降低,并且耐磨性强,使用稳定可靠,必然能够使制作出的粉煤烧嘴更具有市场竞争力。 [0013] This design has been verified by calculations and experiments, i.e. applied to practice, because the pulverized coal supplied to make simple manner, eliminating the cumbersome process other coil, so that effectively reduce processing costs, and wear resistance, the use of stable reliable, it must be able to produce a pulverized coal burner to make more competitive on the market.

[0014] 需要说明的是:以上所述仅为本发明的优选实施例,并不用于限制本发明,尽管参照前述实施例对本发明进行了详细的说明,对于本领域的技术人员来说,其依然可以对前述实施例所记载的技术方案进行修改,或者对其中部分技术特征进行同等替换。 [0014] Note that: the above embodiments are only preferred embodiments of the present invention is not intended to limit the present invention. Although the present invention has been described in detail embodiments, those skilled in the art, which the technical solutions described embodiment can still be modified to the foregoing embodiment, or some technical features equivalent replacement.

[0015] 凡在本发明的精神和原则之内,所做的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。 [0015] within the spirit and principle of the present invention, any modifications, equivalent replacements, improvements, etc., should be included within the scope of the present invention.

Claims (2)

1.一种新型粉煤烧嘴,其特征是粉煤烧嘴设置有粉煤入口,粉煤入口通道与粉煤通道外壁相切,与粉煤通道中心线夹角为68° ;在粉煤通道中平行设置有两条钢筋(1),使粉煤通道内形成旋流粉煤通道,两条钢筋(I)螺旋盘绕在粉煤通道内壁上,在粉煤通道入口盘绕角度为35°,在粉煤通道出口盘绕角度为60°。 1. A novel pulverized coal burner, the pulverized coal burner is provided wherein pulverized coal has an inlet, an inlet passage of the pulverized coal and the pulverized coal passage is tangential to the outer wall, with the center line of the pulverized coal passage an angle 68 °; pulverized coal there are two parallel channels disposed bars (1), forming the pulverized coal within the pulverized coal passage swirl channel, two reinforcement (I) spirally wound on the inner wall of the pulverized coal passage, the inlet passage of the pulverized coal winding angle 35 °, at the outlet of the pulverized coal passage is winding angle 60 °.
2.如权利要求1所示的新型粉煤烧嘴,其特征是煤粉和氮气沿着由两条钢筋之间形成的旋流粉煤通道旋转向前,以一定角度旋转喷出粉煤通道,在喷出烧嘴口之后粉煤仍然带有一定的旋度。 2. The pulverized coal burner shown in novel claim 1, characterized in that the pulverized coal and the pulverized coal nitrogen rotated forward along the swirler passage formed between two steel, an angle of rotation ejection pulverized coal passage , after the ejection of pulverized coal burner mouth still with a certain degree of rotation.
CN 201310740479 2013-12-27 2013-12-27 Novel pulverized coal nozzle and pulverized coal feeding mode CN103740412B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1142406A (en) * 1967-03-06 1969-02-05 Inst Gaza Akademii Nauk Ukrain Gas burners
GB2083197B (en) * 1980-09-02 1984-06-20 Gnii Pi Azotnoj Pulverized-coal burner
JPH0626615A (en) * 1992-07-07 1994-02-04 Central Res Inst Of Electric Power Ind Pulverized coal combustion burner
CN101160377A (en) * 2005-04-18 2008-04-09 通用电气公司 Improved feed injector for gasification and related method
CN202717758U (en) * 2012-06-08 2013-02-06 李潇潇 Powder fuel burner
CN203068507U (en) * 2012-12-31 2013-07-17 西安航天远征流体控制股份有限公司 Novel rotational flow atomization device of powdered coal nozzle
CN203668326U (en) * 2013-12-27 2014-06-25 西安航天远征流体控制股份有限公司 Novel pulverized coal burner

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6539724B2 (en) * 2001-03-30 2003-04-01 Delavan Inc Airblast fuel atomization system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1142406A (en) * 1967-03-06 1969-02-05 Inst Gaza Akademii Nauk Ukrain Gas burners
GB2083197B (en) * 1980-09-02 1984-06-20 Gnii Pi Azotnoj Pulverized-coal burner
JPH0626615A (en) * 1992-07-07 1994-02-04 Central Res Inst Of Electric Power Ind Pulverized coal combustion burner
CN101160377A (en) * 2005-04-18 2008-04-09 通用电气公司 Improved feed injector for gasification and related method
CN202717758U (en) * 2012-06-08 2013-02-06 李潇潇 Powder fuel burner
CN203068507U (en) * 2012-12-31 2013-07-17 西安航天远征流体控制股份有限公司 Novel rotational flow atomization device of powdered coal nozzle
CN203668326U (en) * 2013-12-27 2014-06-25 西安航天远征流体控制股份有限公司 Novel pulverized coal burner

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