CN106940014B - Furnace top burner with feeding component - Google Patents

Furnace top burner with feeding component Download PDF

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Publication number
CN106940014B
CN106940014B CN201710299629.4A CN201710299629A CN106940014B CN 106940014 B CN106940014 B CN 106940014B CN 201710299629 A CN201710299629 A CN 201710299629A CN 106940014 B CN106940014 B CN 106940014B
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combustion
gas
diameter
burner
zhong
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CN201710299629.4A
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Chinese (zh)
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CN106940014A (en
Inventor
王振峰
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Zhengzhou University
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Zhengzhou University
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/62—Mixing devices; Mixing tubes
    • F23D14/64—Mixing devices; Mixing tubes with injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/10—Charging directly from hoppers or shoots
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/007—Mixing tubes, air supply regulation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)

Abstract

The invention relates to a furnace top burner with a charging valve, which comprises a charging valve cylinder and a burner sleeve assembly, wherein the charging valve cylinder consists of a charging valve mechanism and a material combustion-supporting air sealing separation pipe, the burner sleeve assembly consists of a gas outer sleeve, a combustion-supporting air inner separation pipe, an upper sealing cover, a combustion-supporting air cavity annular plate, a gas cavity nozzle annular plate and a gas connecting pipe, the lower end of the charging valve cylinder is sealed and fixed in the combustion-supporting air cavity annular plate of the burner sleeve assembly, and the middle part of the charging valve cylinder is sealed and fixed in the upper sealing cover of the burner sleeve assembly x The content of the product is reduced, and the air pollution is reduced.

Description

Furnace top burner with feeding component
Technical Field
The invention belongs to the technical field of kilns, and particularly relates to a furnace top burner with a feeding component.
Background
At present, a kiln is usually provided with special feeding equipment and a burner, the burner is generally positioned on the wall of the kiln and is arranged separately from the feeding position, the burner is influenced by the structure of the burner and the installation position of the burner, the burner is usually provided with a primary combustion air or a secondary combustion air, when the burner uses fuel gas with high heat value and the temperature of the heated material is low, a large amount of surplus air is needed to reduce the combustion temperature of the burner, thus not only increasing the total air flow in the kiln but also increasing the total waste gas, and simultaneously, the burner is easy to generate oxynitride (namely NO x ) Air pollution is generated, for example, a burner which is arranged on the top of a furnace and is used for reducing the combustion temperature of the burner by using flue gas in the furnace, and the feeding and the burner are positioned together can be provided, so that the flue gas in the furnace is more uniformly distributed, and the NO in the combustion products, namely the flue gas, can be reduced x The content of the product is reduced, and the air pollution is reduced.
Disclosure of Invention
The invention aims at:
the invention aims to overcome the defects of the prior art by mainly aiming at the situation, and aims to provide the furnace top burner which does not need a large amount of excessive air and utilizes the back flow of the flue gas in the furnace when the fuel with high heat value is adopted, reduces the burning temperature of the burner and further reduces the content of the oxynitride of the burning product, ensures that the distribution of the flue gas in the furnace is more uniform and is arranged on the furnace top and is provided with a charging part.
The technical scheme of the invention is as follows: the utility model provides a furnace top burner with charging parts, including charging valve tube spare and burner sleeve subassembly, characterized in that, charging valve tube spare comprises material valve mechanism and material combustion-supporting air seal separating tube, material combustion-supporting air seal separating tube is the drum that the top was equipped with the connection disc, material valve mechanism comprises receiving funnel, zhong Faxin, zhong Faxin top tight spring and Zhong Fading tight spring seat, receiving funnel is big-end-up's cone, zhong Faxin is the big-end-up's cone frustum body that upper end was equipped with round bar-shaped top depression bar, the lower extreme is equipped with round bar-shaped bell valve guide bar, the round bar-shaped top depression bar of Zhong Faxin and the upper half of cone frustum body pass through receiving funnel tip cartridge in receiving funnel, receiving funnel's big-end is fixed in material combustion-supporting air seal separating tube's top inside, zhong Fading tight spring seat is cylindric and is fixed in material combustion-supporting air seal separating tube's core through a plurality of perpendicular gusset, the diameter of the large diameter end of the Zhong Faxin cone frustum body is larger than the inner diameter of the small opening end of the receiving hopper, the material valve guide rod of the Zhong Faxin is inserted in the through hole of the bell valve pushing spring seat, the Zhong Faxin pushing spring is sleeved outside the bell valve guide rod of the bell valve core and is arranged on the bell valve pushing spring seat, the burner sleeve assembly consists of a gas outer sleeve, a combustion-supporting air inner partition pipe, an upper sealing cover, a combustion-supporting air cavity annular plate, a gas cavity nozzle annular plate and a gas connecting pipe, the gas outer sleeve and the combustion-supporting air inner partition pipe are tubular, the upper sealing cover is fixed on the gas outer sleeve and the combustion-supporting air inner partition pipe, the upper sealing cover is an annular plate, the inner diameter of the upper sealing cover is smaller than the inner diameter of the combustion-supporting air inner partition pipe, the outer diameter of the upper sealing cover is larger than the outer diameter of the gas outer sleeve, the combustion-supporting inner partition pipe coincides with the central axis of the upper sealing cover, the inner diameter of the combustion-supporting air cavity annular plate is equal to the inner diameter of the combustion-supporting air inner partition pipe, the inner diameter of the combustion-supporting air cavity annular plate is equal to the inner diameter of the upper sealing cover, the outer part of the lower end of the combustion-supporting air inner partition pipe and the lower end of the gas outer sleeve are fixedly provided with gas cavity nozzle annular plates with the inner diameter equal to the outer diameter of the combustion-supporting air inner partition pipe and the outer diameter equal to the outer diameter of the gas outer sleeve, the gas cavity nozzle annular plate is an annular disc with a plurality of venturi nozzles on the end face, a plurality of radial through holes which are transparent and matched with the venturi nozzles are arranged on the upper side of the combustion-supporting air cavity annular plate, a plurality of radial through holes which are transparent and matched with the venturi nozzles are arranged on the side face of the combustion-supporting air inner partition pipe, the lower end of the charging valve cylinder piece is fixed in the combustion-supporting air cavity annular plate in a sealing manner, the middle part of the charging valve cylinder piece is fixed in the upper sealing cover in a sealing manner, the total height of the top of the charging part is 340mm, and the stroke height of the combustion-supporting valve cylinder piece 1 is 260mm.
The inner diameter of the material combustion-supporting air sealing partition pipe of the charging valve cylinder is 248mm, the outer diameter is 256mm, the height is 340mm, the outer diameter of the connecting disc is 400mm, the length of the burner sleeve assembly is 128mm, the diameter of the central hole of the upper sealing cover 11 of the burner sleeve assembly is 256mm, the inner diameter of the combustion-supporting air inner partition pipe is 310mm, the outer diameter is 325mm, the inner diameter of the fuel gas outer sleeve pipe is 366mm, and the lengths of the combustion-supporting air inner partition pipe and the fuel gas outer sleeve pipe are 116mm.
The beneficial effects of the invention are as follows: the invention can utilize the flue gas in the furnace to reflux to reduce the combustion temperature of the burner, the flue gas in the furnace is more uniformly distributed, and the NO in the combustion products, namely the flue gas, can be reduced x The content of the product is reduced, and the air pollution is reduced.
Drawings
Fig. 1 is a front cross-sectional view of the present invention.
FIG. 2 is a schematic structural view of a feed valve cartridge of the present invention.
Fig. 3 is a schematic structural view of the material valve mechanism of the present invention.
FIG. 4 is a schematic view of a burner sleeve assembly of the present invention.
Fig. 5 is a schematic diagram of the operation of the present invention.
Wherein: 1 is a charging valve cylinder; 2 is a burner sleeve assembly; 3 is a material valve mechanism; 4 is a material combustion-supporting air sealing partition pipe; 5 is a receiving hopper; 6 is Zhong Faxin; 7 is a clock valve core propping spring; 8 is a bell valve propping spring seat; 9 is a gas outer sleeve; 10 is a combustion-supporting air inner partition pipe; 11 is an upper cover; 12 is a combustion-supporting air cavity annular plate; 13 is a gas cavity nozzle ring plate; and 14 is a gas connecting pipe.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the drawings.
The invention is shown in figures 1 to 5, the invention comprises a charging valve cylinder 1 and a burner sleeve component 2, the charging valve cylinder 1 is composed of a charging valve mechanism 3 and a material combustion air sealing separation tube 4, the material combustion air sealing separation tube 4 is a cylinder with a connecting disc at the top end, the charging valve mechanism 3 is composed of a receiving funnel 5, a clock valve core 6, a clock valve core propping spring 7 and a Zhong Fading spring seat 8, the receiving funnel 5 is a cone with big top and small bottom, zhong Faxin is a cone frustum with a round rod-shaped propping rod at the upper end and a round rod-shaped clock valve guide rod at the lower end, the round rod-shaped propping rod of the clock valve core 6 and the upper half of the cone frustum are inserted into the receiving funnel 5 through the small opening end of the receiving funnel 5, the big opening end of the receiving funnel 5 is fixed in the top end of the material combustion air sealing separation tube 4, zhong Fading spring seat 8 is a cylinder and is fixed in the center of the material combustion air sealing separation tube 4 through a plurality of vertical rib plates, zhong Faxin 6 conical frustum body's diameter is greater than receiving hopper 5's small opening end internal diameter, zhong Faxin 6's material valve guide arm cartridge is in clock valve jack spring holder 8's through-hole, zhong Faxin jack spring 7 suit is outside clock valve guide arm of clock valve case 6 and place clock valve jack spring holder 8 on, burner sleeve subassembly 2 comprises gas outer tube 9, combustion air inner tube 10, upper seal cover 11, combustion air chamber annular plate 12, gas chamber nozzle annular plate 13 and gas connecting pipe 14, gas outer tube 9 and combustion air inner tube 10's shape is the tubulose, be fixed with upper seal cover 11 above gas outer tube 9, combustion air inner tube 10, upper seal cover 11 is the annular plate, the internal diameter of upper seal cover 11 is less than the internal diameter of combustion air inner tube 10, the external diameter of upper seal cover 11 is greater than the external diameter of gas outer tube 9, gas outer tube 9's external diameter, the inner combustion-supporting air inner partition pipe 10 coincides with the central axis of the upper sealing cover 11, a combustion-supporting air cavity annular plate 12 with the outer diameter equal to the inner diameter of the combustion-supporting air inner partition pipe 10 is fixed inside the lower end of the combustion-supporting air inner partition pipe 10, the inner diameter of the combustion-supporting air cavity annular plate 12 is equal to the inner diameter of the upper sealing cover 11, a gas cavity nozzle annular plate 13 with the inner diameter equal to the outer diameter of the combustion-supporting air inner partition pipe 10 and the outer diameter equal to the outer diameter of the gas outer sleeve 9 is fixed below the lower end of the gas outer sleeve 9 outside the lower end of the combustion-supporting air inner partition pipe 10, the gas cavity nozzle annular plate 13 is an annular disk with a plurality of venturi nozzles on the end face, a plurality of radial through holes which are transparent and matched with the venturi nozzles are arranged on the upper side face of the combustion-supporting air inner partition pipe 10, a plurality of through gas connecting pipes 14 are arranged on the side face of the combustion-supporting air cavity annular plate 13, a plurality of radial through holes which are transparent and matched with the venturi nozzles are arranged on the side face of the combustion-supporting air inner partition pipe 10, the lower end of the gas feeding valve cylinder 1 is fixed in the combustion-supporting air cavity annular plate 12 in a sealing manner, the middle part of the feeding valve cylinder 1 is fixed in the upper sealing cover 11, the total height of the feeding valve cylinder is 340mm, and the feeding height of the feeding valve cylinder is 260mm, and the feeding height of the feeding valve is 340 mm.
The inner diameter of the material combustion-supporting air sealing separation tube 4 of the charging valve cylinder 1 is 248mm, the outer diameter is 256mm, the height is 340mm, the outer diameter of the connecting disc is 400mm, the length of the burner sleeve assembly 2 is 128mm, the diameter of the central hole of the upper sealing cover 11 of the burner sleeve assembly 2 is 256mm, the inner diameter of the combustion-supporting air inner separation tube 10 is 310mm, the outer diameter is 325mm, the inner diameter of the gas outer sleeve 9 is 366mm, and the lengths of the combustion-supporting air inner separation tube 10 and the gas outer sleeve 9 are 116mm.
Embodiment one: the material combustion-supporting air sealing separation tube 4 of the feeding valve cylinder piece 1 is 248mm in inner diameter, 256mm in outer diameter and 340mm in height, the outer diameter of a connecting disc is 400mm, the length of the burner sleeve assembly 2 is 128mm, the diameter of a central hole of the upper sealing cover 11 of the burner sleeve assembly 2 is 256mm, the inner diameter of the combustion-supporting air inner separation tube 10 is 310mm, 325mm in outer diameter, the inner diameter of the gas outer sleeve 9 is 366mm, the lengths of the combustion-supporting air inner separation tube 10 and the gas outer sleeve 9 are 116mm, the feeding valve cylinder piece 1 and the burner sleeve assembly 2 are connected, the tightness of gas is ensured, the gas connecting tube 14 and a gas source pipeline are connected, the total height of the burner top of the feeding component of the embodiment is 340mm, the travel height of the feeding valve cylinder piece 1 is 260mm, the upper ejector rod of Zhong Faxin is moved downwards under the action of external pressure (such as the ejector rod of the discharge hole of a bell-valve type charging tank is pressed downwards), the material in the receiving hopper 5 above the bell valve core 6 can be discharged downwards, the purpose of charging into the furnace is realized, the external pressure on the upper ejector rod of Zhong Faxin 6 is relieved after charging is finished, the bell valve core 6 is moved upwards, and the charging valve is closed, so that is the charging function mounted on the furnace top is realized, when the furnace is burnt, the fuel gas is supplied to the cavity formed by the fuel gas outer sleeve 9 and the combustion-supporting air inner partition pipe 10 through the fuel gas connecting pipe 14, the fuel gas flows into the furnace after flowing through the cavity formed by the nozzle, after flowing into the combustion-supporting air through the cavity formed by the combustion-supporting air inner partition pipe 10 and the material combustion-supporting air sealing partition pipe 4 of the charging valve cylinder 1, and flows into the fuel gas nozzle through the distribution holes on the side surface of the lower side of the combustion-supporting air inner partition pipe 10, and enters after being mixed with the fuel gas after flowing into the furnace after being combustedIn the furnace, the structure of the gas nozzle adopts the structure of a Venturi (i.e. horn mouth) nozzle when the burner burns, and the smoke reflux holes on the side surface of the gas cavity nozzle ring plate 13 form reflux under the negative pressure injection effect formed by gas injection, so that on one hand, the gas temperature is improved to facilitate ignition and combustion, on the other hand, the oxygen concentration of combustion flame is reduced, and the high-temperature low-oxygen combustion condition is formed, thereby reducing the content of oxynitride in combustion waste gas and reducing NO x Effect of contaminants.
The invention can utilize the flue gas in the furnace to reflux to reduce the combustion temperature of the burner, the flue gas in the furnace is more uniformly distributed, and the NO in the combustion products, namely the flue gas, can be reduced x The content of the product is reduced, and the air pollution is reduced.

Claims (2)

1. The utility model provides a furnace top burner with charging parts, including charging valve section of thick bamboo spare (1) and nozzle sleeve subassembly (2), a serial communication port, charging valve section of thick bamboo spare (1) comprises material valve mechanism (3) and material combustion-supporting air seal baffle (4), material valve mechanism (3) are the drum that is equipped with the connection disc for the top, material valve mechanism (3) are by receiving hopper (5), zhong Faxin (6), zhong Faxin top tight spring (7) and Zhong Fading tight spring seat (8) constitute, receive hopper (5) be big end down's cone, zhong Faxin (6) are the upper end be equipped with round bar-shaped top pole, the lower extreme is equipped with the big end down's circular cone frustum of round bar-shaped bell valve guide arm, zhong Faxin (6) round bar-shaped top pole and the upper half of circular cone frustum body are received hopper (5) tip cartridge in material hopper (5), the big end of receiving hopper (5) is fixed in material combustion-supporting air seal baffle (4) top inside, zhong Fading tight spring seat (8) are drum-shaped and are the circular cone cylinder-shaped and are received the circular cone frustum (6) big end diameter of sealing air seal baffle (4) is fixed in the valve boss (35) of the big end (6) of the circular rod, the valve boss (6) diameter of valve boss (35) is big end of the top of sealing guide arm (6), zhong Faxin pushing springs (7) are sleeved outside clock valve guide rods of Zhong Faxin (6) and are arranged on clock valve pushing spring seats (8), a burner sleeve assembly (2) consists of a gas outer sleeve (9), a combustion air inner partition tube (10), an upper sealing cover (11), a combustion air cavity annular plate (12), a gas cavity nozzle annular plate (13) and a gas connecting tube (14), the gas outer sleeve (9) and the combustion air inner partition tube (10) are tubular, the upper sealing cover (11) is fixed on the gas outer sleeve (9) and the combustion air inner partition tube (10), the upper sealing cover (11) is an annular plate, the inner diameter of the upper sealing cover (11) is smaller than the inner diameter of the combustion air inner separation pipe (10), the outer diameter of the upper sealing cover (11) is larger than the outer diameter of the gas outer sleeve (9), the combustion air inner separation pipe (10) and the central axis of the upper sealing cover (11) are overlapped, a combustion air cavity annular plate (12) with the outer diameter equal to the inner diameter of the combustion air inner separation pipe (10) is fixed inside the lower end of the combustion air inner separation pipe (10), the inner diameter of the combustion air cavity annular plate (12) is equal to the inner diameter of the upper sealing cover (11), the outer part of the lower end of the combustion air inner separation pipe (10), the outer diameter equal to the outer diameter of the combustion air inner separation pipe (10) is fixed below the lower end of the gas outer sleeve (9), the outer diameter is equal with the external diameter of gas outer tube (9) gas chamber nozzle ring board (13), gas chamber nozzle ring board (13) is equipped with the annular disk of a plurality of venturi nozzles for the terminal surface, on combustion-supporting wind chamber ring board (12), the side of combustion-supporting wind inner baffle (10) is equipped with a plurality of radial through-holes penetrating and matching with the venturi nozzle, the side of combustion-supporting wind inner baffle (10) is equipped with penetrating gas connecting pipe (14), the side of gas chamber nozzle ring board (13) is equipped with a plurality of radial through-holes penetrating and matching with the venturi nozzle, the lower extreme seal of feed valve section of thick bamboo spare (1) is fixed in combustion-supporting wind chamber ring board (12), the middle part seal of feed valve section of thick bamboo spare (1) is fixed in last closing cap (11), the total height of feed element's furnace top nozzle is 340mm, the stroke height of feed valve section of thick bamboo spare (1) is 260mm.
2. A stove top burner provided with a charging member according to claim 1, wherein: the inner diameter of the material combustion-supporting air sealing separation tube (4) of the charging valve cylinder (1) is 248mm, the outer diameter is 256mm, the height is 340mm, the outer diameter of the connecting disc is 400mm, the length of the burner sleeve assembly (2) is 128mm, the diameter of the central hole of the upper sealing cover 11 of the burner sleeve assembly (2) is 256mm, the inner diameter of the combustion-supporting air inner separation tube (10) is 310mm, the outer diameter is 325mm, the inner diameter of the gas outer sleeve (9) is 366mm, and the lengths of the combustion-supporting air inner separation tube (10) and the gas outer sleeve (9) are 116mm.
CN201710299629.4A 2017-05-02 2017-05-02 Furnace top burner with feeding component Active CN106940014B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710299629.4A CN106940014B (en) 2017-05-02 2017-05-02 Furnace top burner with feeding component

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Application Number Priority Date Filing Date Title
CN201710299629.4A CN106940014B (en) 2017-05-02 2017-05-02 Furnace top burner with feeding component

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CN106940014A CN106940014A (en) 2017-07-11
CN106940014B true CN106940014B (en) 2023-07-14

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102072648A (en) * 2011-01-20 2011-05-25 江苏中圣园科技股份有限公司 Flameless combustion annular sleeve kiln
JP3196294U (en) * 2014-10-10 2015-03-05 株式会社ライテック Gas igniter with improved ignition efficiency
CN206682938U (en) * 2017-05-02 2017-11-28 郑州大学 A kind of furnace roof burner for being provided with charging part

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102072648A (en) * 2011-01-20 2011-05-25 江苏中圣园科技股份有限公司 Flameless combustion annular sleeve kiln
JP3196294U (en) * 2014-10-10 2015-03-05 株式会社ライテック Gas igniter with improved ignition efficiency
CN206682938U (en) * 2017-05-02 2017-11-28 郑州大学 A kind of furnace roof burner for being provided with charging part

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
炉膛结构对炉内NO_x生成的影响;朱彤等;《工业炉》(第06期);第1-4、第50页 *

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