CN103591578A - Novel diffusion type pulverized coal burner for decomposing furnace - Google Patents

Novel diffusion type pulverized coal burner for decomposing furnace Download PDF

Info

Publication number
CN103591578A
CN103591578A CN201210290933.XA CN201210290933A CN103591578A CN 103591578 A CN103591578 A CN 103591578A CN 201210290933 A CN201210290933 A CN 201210290933A CN 103591578 A CN103591578 A CN 103591578A
Authority
CN
China
Prior art keywords
tube
coal burner
burner
swirl vane
pulverized coal
Prior art date
Application number
CN201210290933.XA
Other languages
Chinese (zh)
Inventor
王姝森
Original Assignee
郑州奥通热力工程有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 郑州奥通热力工程有限公司 filed Critical 郑州奥通热力工程有限公司
Priority to CN201210290933.XA priority Critical patent/CN103591578A/en
Publication of CN103591578A publication Critical patent/CN103591578A/en

Links

Abstract

The invention relates to a novel diffusion type pulverized coal burner for a decomposing furnace. The burner comprises an outer tube, an inner tube, swirl blades and a fixing frame. The swirl blades are mounted between the outer tube and the inner tube, the inner tube is fastened through the fixing frame, the surface of one end of the inner tube is a cylindrical surface, and the surface of the other end of the inner tube is a tapered surface and is tapered. The pulverized coal burner is good in burning effect, high in heat utilization ratio, simple in structure and convenient to manufacture and mount.

Description

Novel dore furnace diffused coal burner

one, technical field

The present invention relates to a kind of burner, particularly a kind of dore furnace diffused coal burner, is applied to the kiln tail in manufacture of cement.

two, background technology

Coal burner is a kind of device that relies on air-flow that coal dust is brought into boiler and lighted, and in order to improve the coal burner of the existing many versions of utilization rate of burner effect and energy, occurs.For example, bluff body burner is to be provided with a non-linearity bluff body in wind exit of tangential firing device, makes breeze airflow flow through Analyses of Wakes Behind Bluff Bodies district and produces backflow, entrainments high-temperature flue gas, be beneficial to catching fire of fuel and stablizing of flame, the fuel gas stream after catching fire still forms tangential firing in burner hearth.These burners are mainly modifieds on the basis of DC burner, these follow-on coal burners have still been found some problems in actual application, are mainly reflected in incomplete combustion, and heat utilization efficiency is low, serious wear, slagging scorification dust stratification and adjusting function are poor etc.The coal burner that particularly existing manufacture of cement producer is used in dore furnace, adopts straight-through pulverized coal burner mostly, causes fuel combustion incomplete, and heat utilization efficiency is low, wastes energy.

three, summary of the invention

Based on above-mentioned situation, the present invention's object is the straight-through pulverized coal burner using in dore furnace for existing most of manufacture of cement producer, exist fuel combustion incomplete, heat utilization efficiency is low, the problem wasting energy, provide a kind of burning complete, heat utilization efficiency is high, smoke abatement and dust control, energy-efficient novel dore furnace diffused coal burner, can effectively solve the coal dust firing that straight-through pulverized coal burner that existing manufacture of cement producer adopts in dore furnace causes incomplete, heat utilization efficiency is low, and the problem wasting energy can greatly improve the utilization rate of the energy.

Technical scheme of the present invention is: novel dore furnace diffused coal burner includes outer tube, inner tube, swirl vane, fixed mount.Between its middle external tube and inner tube, swirl vane is installed, inner tube is fastening by fixed mount, and inner tube one end surfaces is the face of cylinder, and the other end surfaces of inner tube is the conical surface, is conical.Combustion efficiency of the present invention is good, and heat utilization efficiency is high, and simple in structure, manufactures easy for installation.

four, accompanying drawing explanation

Fig. 1 is the structural front view of invention.

Fig. 2 is structure top view of the present invention.

figure number title:

1-burner; 2-outer tube; 3-swirl vane a; 4-fixed mount; 5-inner tube; 6-swirl vane b.

five, concrete implementing measure

Below in conjunction with accompanying drawing, specific embodiment of the invention process is described:

Shown in accompanying drawing 1, Fig. 2:

The present invention includes and included outer tube (2), inner tube (5), swirl vane a(3), swirl vane b(6), fixed mount (4).Wherein, inner tube (5) one end outer surface is the face of cylinder, and between outer tube (2) inwall, row's swirl vane a(3 is installed), inner tube (5) central exterior surface is periphery, and between outer tube (2) inwall, row's swirl vane b(6 is installed); Inner tube (5) other end outer surface is the conical surface, is conical.Inner tube (5) is installed fastening by fixed mount (4).Coal dust enters the inside of burner (1) by being one end of conical inner tube, because the inner tube (5) of coal-feeding end is conical, coal dust is diffused when entering burner.The coal dust being diffused is by the swirl vane b(6 between inner tube (5) and outer tube (2)) time form rotational flow coal dust, by inner tube (5) and outer tube (2) the swirl vane a(3 of one end in addition) time again form the rotational flow coal dust that cyclonic action is stronger.

First the present invention by coal dust diffusion, then forms eddy flow twice by swirl vane, and the efficiency of combustion and the burning that have greatly improved coal dust are complete, has improved the utilization rate of heat, smoke abatement and dust control, energy-efficient, and also the present invention is simple in structure, manufactures easy for installation.

Claims (3)

1. a novel dore furnace diffused coal burner, includes outer tube (2), inner tube (5), swirl vane a(3), swirl vane b(6), fixed mount (4); Inner tube (5) one end outer surface is the face of cylinder, and between outer tube (2) inwall, row's swirl vane a(3 is installed); Inner tube (5) central exterior surface is periphery, and between outer tube (2) inwall, row's swirl vane b(6 is installed), the other end surfaces of inner tube (5) is the conical surface, is conical, inner tube (5) is installed fastening by fixed mount (4).
2. according to the novel dore furnace diffused coal burner described in claims 1, it is characterized in that: said inner tube (5) is provided with swirl vane a(3 with outer tube (2)) and swirl vane b(6).
3. according to claims 1 with according to the novel dore furnace diffused coal burner described in claims 2, it is characterized in that: said inner tube (5) one end is the face of cylinder, and one end is taper seat in addition.
CN201210290933.XA 2012-08-16 2012-08-16 Novel diffusion type pulverized coal burner for decomposing furnace CN103591578A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210290933.XA CN103591578A (en) 2012-08-16 2012-08-16 Novel diffusion type pulverized coal burner for decomposing furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210290933.XA CN103591578A (en) 2012-08-16 2012-08-16 Novel diffusion type pulverized coal burner for decomposing furnace

Publications (1)

Publication Number Publication Date
CN103591578A true CN103591578A (en) 2014-02-19

Family

ID=50081819

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210290933.XA CN103591578A (en) 2012-08-16 2012-08-16 Novel diffusion type pulverized coal burner for decomposing furnace

Country Status (1)

Country Link
CN (1) CN103591578A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106029599A (en) * 2014-03-06 2016-10-12 太平洋工程株式会社 Cement burning apparatus, and method for denitrating exhaust gas from cement kiln

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2156458Y (en) * 1993-01-20 1994-02-16 四川省北川县水泥厂 Coal spray pipe with flame stabilizer for cement rotary kiln
JPH0926112A (en) * 1995-07-14 1997-01-28 Kawasaki Heavy Ind Ltd Pulverized coal burner
CN101832550A (en) * 2010-06-18 2010-09-15 上海交通大学 Swirl pulverized-coal burner based on multi-level pulverized-coal concentration
CN201964402U (en) * 2011-01-21 2011-09-07 江苏瑞泰重型机械有限公司 Cement produced with the dry method kiln predecomposition burner nozzle that has the blunt body of spiral
CN102305397A (en) * 2011-09-08 2012-01-04 上海题桥能源科技发展有限公司 Low-NOX (nitrogen oxides) slag-tap pulverized coal combustion device with triple rotational air

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2156458Y (en) * 1993-01-20 1994-02-16 四川省北川县水泥厂 Coal spray pipe with flame stabilizer for cement rotary kiln
JPH0926112A (en) * 1995-07-14 1997-01-28 Kawasaki Heavy Ind Ltd Pulverized coal burner
CN101832550A (en) * 2010-06-18 2010-09-15 上海交通大学 Swirl pulverized-coal burner based on multi-level pulverized-coal concentration
CN201964402U (en) * 2011-01-21 2011-09-07 江苏瑞泰重型机械有限公司 Cement produced with the dry method kiln predecomposition burner nozzle that has the blunt body of spiral
CN102305397A (en) * 2011-09-08 2012-01-04 上海题桥能源科技发展有限公司 Low-NOX (nitrogen oxides) slag-tap pulverized coal combustion device with triple rotational air

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106029599A (en) * 2014-03-06 2016-10-12 太平洋工程株式会社 Cement burning apparatus, and method for denitrating exhaust gas from cement kiln

Similar Documents

Publication Publication Date Title
Fan et al. PDA research on a novel pulverized coal combustion technology for a large utility boiler
CN204648216U (en) A kind of Problem of Biomass Fuel Gas Combustion installment with UTILIZATION OF VESIDUAL HEAT IN
CN102062396B (en) Composite concentration triple-wind-regulating low-NOx cyclone pulverized-coal burner
CN201680364U (en) Efficient low NOx pulverized coal burner for small and medium-sized industrial boilers
CN201496957U (en) Cyclone pulverized coal burner
CN101561138B (en) Secondary concentration double-nozzle micro-oil pulverized coal igniting device
CN205717165U (en) A kind of high-efficiency energy-saving biomass boiler
CN202546811U (en) Compound furnace arch and compound secondary air structure
CN103615717A (en) Novel oxygen enrichment tiny-oil ignition and ultralow load stable-combustion combustor
CN204165044U (en) The premixed coal dust low NO of a kind of adverse current
CN204165045U (en) Warm flue gas recirculation coal powder burner in one
Zhou et al. Mechanism analysis on the pulverized coal combustion flame stability and NOx emission in a swirl burner with deep air staging
CN207584825U (en) A kind of fire grate of efficient biomass domestic stove
CN201093488Y (en) Horizontal shade type micro oil mass igniting powdered coal burner
Zhengqi et al. Effect of primary air flow types on particle distributions in the near swirl burner region
CN104819472A (en) Biomass solid waste and hazardous waste combustion gas production system
CN201662062U (en) Cyclone pulverized coal burner
CN203869032U (en) Reflection rotational flow porous medium burner used for high-temperature biomass gas
WO2015103831A1 (en) Fuel/gas-saving ignition and stable-combustion low-nitrogen swirling pulverized coal combustor
WO2015103832A1 (en) Classification strengthened low nox pulverized coal burner
CN103672883B (en) Grid type swirl burner
CN105465784B (en) A kind of Regeneration type Radiant Tube Burner with smoke backflow
CN101865462A (en) Weak-cyclone primary air multi-stage separation cyclone burner
CN107559819A (en) A kind of spiral-flow powdered coal burning mechanism that gradually expanded form precombustion chamber is carried for Industrial Boiler
CN101403497B (en) Micro-oil ignition rotational flow breeze combustion device for preventing slag bonding of primary combustion chamber

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20140219

RJ01 Rejection of invention patent application after publication