CN201028505Y - Multi-duct straight cylinder type high-efficiency coal dust combustion furnace - Google Patents

Multi-duct straight cylinder type high-efficiency coal dust combustion furnace Download PDF

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Publication number
CN201028505Y
CN201028505Y CNU2007200363354U CN200720036335U CN201028505Y CN 201028505 Y CN201028505 Y CN 201028505Y CN U2007200363354 U CNU2007200363354 U CN U2007200363354U CN 200720036335 U CN200720036335 U CN 200720036335U CN 201028505 Y CN201028505 Y CN 201028505Y
Authority
CN
China
Prior art keywords
air channel
windhole
burner
hearth
barrel type
Prior art date
Application number
CNU2007200363354U
Other languages
Chinese (zh)
Inventor
何金龙
Original Assignee
何金龙
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 何金龙 filed Critical 何金龙
Priority to CNU2007200363354U priority Critical patent/CN201028505Y/en
Application granted granted Critical
Publication of CN201028505Y publication Critical patent/CN201028505Y/en

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Abstract

The utility model relates to a multi-windhole straight tube shape high efficient pulverized coal burner, belonging to the technical field of industrial burning machine. The utility model is characterized in that a firing door, a hearth and a fire jet pipe at the burner head are integrated; the firing door is provided with a coal spraying pipe, an ignition oil pipe, an inner windhole, a windhole for injecting coal, a windhole for the blowing air from the fan and an internal windhole, and all the above windholes are communicated with the straight tube shape hearth. The outside of the hearth is provided with a windhole in the shell. And the hearth and the fire jet pipe at the burner head are in a shape of straight tube with identical inside diameter. The utility model can enable the pulverized coal evenly and fully mix with the air, achieving a much complete combustion and higher heat efficiency; as the section of the hearth is decreased, the jet range of the flame is longer, and the drying and heating effect of the heating device is improved; the jet fire hole is straight tube shape, so that the fire will not ablate the fire resisting material and the burner body, the life span is prolonged and the application safety factor of device in increased; the cinder is uneasily coagulated, even the cinder is coagulated, the removal is easy.

Description

The efficient coal dust furnace of multiple duct straight barrel type
Technical field
The utility model relates to the efficient coal dust furnace of a kind of multiple duct straight barrel type, specifically is used for the oven dry heating of smelting iron and steel, chemical industry equipment, grain processing, road building machine etc., is the combustion furnace equipment of fuel with the coal dust, belongs to industrial combustion machine technology field.
Background technology
At present, be used for the particularly coal dust furnace on the asphalt mixing plant of grain heat-drying, smelting iron and steel, chemical industry equipment, road building machine, its mainly by the Coal powder spray machine, dusting connects flexible pipe, diesel oil igniter, air blast and coal dust furnace and forms the coal burner assembly.Its furnace binding normally burner hearth is bigger, and burner bocca position is tubaeform sealing, and the burner hearth internal diameter is bigger than burner internal diameter.The easy slagging scorification of combustion residue in combustion furnace retains and slagging scorification easy-clear not.Because tubaeform sealing adopted in burner bocca position, although high temperature resistant material feeding or the refractory brick of watering of the inner all employings of bocca position and burner hearth in the thermal-flame winding-up process, is easy to bocca is ablated, greatly reduce the service life of refractory material, even cause the damage of equipment.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned weak point, thereby provides a kind of multiple duct straight barrel type efficient coal dust furnace, and it can make the fuel coal dust and Air mixing is even, abundant, burning is more thorough, and the thermal efficiency is higher; Adopt the straight barrel type bocca to be difficult for ablation refractory material and body of heater, prolong service life greatly, and can improve the coefficient safe in utilization of equipment;
Main solution of the present utility model is achieved in that
The utility model adopts fire door, burner hearth and burner spit tube to be assembled into one, is provided with coal powder injection pipe, igniting oil pipe, interior air channel, coal powder injection air channel, fan inleting pipe road, outer air channel at fire door, and the coal powder injection pipe connects the coal powder injection air channel, and the igniting oil pipe is fixed in the interior air channel; Interior air channel, coal powder injection air channel, outer air channel all communicate with the straight barrel type burner hearth.
Described burner hearth outside is provided with the inner housing air channel.Described fire door, burner hearth, burner spit tube shape are made straight barrel type respectively.
Compared with the prior art the utility model has the following advantages:
The utility model is simple in structure, compact; Volume is little, the efficient height, and power attenuation is low; The straight barrel type burner hearth is difficult for producing slagging scorification, also removes easily in case form slagging scorification; The straight barrel type bocca is difficult for ablation refractory material and body of heater, and prolong service life greatly, can improve the coefficient safe in utilization of equipment; Compare with traditional coal dust furnace, its fuel coal dust and Air mixing are more even, more abundant, and it is more thorough to burn, and the thermal efficiency is higher; Owing to dwindled section of burner hearth, the range of flame is longer, has improved the oven dry heating effect of firing equipment; Simultaneously, because the body of heater volume-diminished has further reduced the equipment making cost, simplified processing technology, and made things convenient for the maintenance of equipment; Owing to after having adopted the inner housing air channel to burner bocca shell temperature reduction technology or after the burner outer wall pours into a mould high temperature resistant material, the burner bocca is stretched in user's firing equipment, can further improve the oven dry efficiency of heating surface of firing equipment.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 installs and uses state diagram for the utility model.
The specific embodiment
Embodiment during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:
The efficient coal dust furnace 15 of the utility model multiple duct straight barrel type mainly is made up of coal powder injection pipe 1, igniting oil pipe 2, interior air channel 3, coal powder injection air channel 4, fan inleting pipe road 5, straight barrel type fire door 6, outer air channel 7, straight barrel type burner hearth 8, inner housing air channel 9, straight barrel type burner bocca 10 etc.
The utility model adopts straight barrel type fire door 6, straight barrel type burner hearth 8 to be assembled into one component devices main body in turn with straight barrel type burner spit tube 10, and burner hearth 8, burner spit tube 10 are made the identical straight barrel type structural shape of internal diameter size respectively.Described straight barrel type fire door 6 is provided with coal powder injection pipe 1, igniting oil pipe 2, interior air channel 3, coal powder injection air channel 4, fan inleting pipe road 5, outer air channel 7; Coal powder injection pipe 1 connects coal powder injection air channel 4, and igniting oil pipe 2 is fixed in the interior air channel 3; Interior air channel 3, coal powder injection air channel 4, outer air channel 7 all communicate with straight barrel type burner hearth 8; Inner housing air channel 9 is in the outside of straight barrel type burner hearth 8.
When the utility model uses with its supporting by Coal powder spray machine 11, dusting is connected flexible pipe 12, diesel oil igniter 13, air blast 14 and the efficient coal dust furnace 15 of multiple duct straight barrel type and forms the coal burner assembly.Connection flexible pipe 12 1 ends that dust link to each other with coal powder injection pipe 1, and the other end links to each other with Coal powder spray machine 11; Diesel oil igniter 13 links to each other with igniting oil pipe 2; Air blast 14 joins with fan inleting pipe road 5.
The operation principle of the present utility model and the course of work
The fuel coal dust sprays under the effect of Coal powder spray machine 11 in the straight barrel type burner hearth 8, natural air under the effect of air blast 14 through the winding-up of the lateral of fan inleting pipe road 5 front ends to interior air channel 3 and outside air channel 7.Gas in each air channel fully mixes with coal dust, and the formation combustion mixture is in burner hearth 8 internal combustion and spray combustion furnace.The part air is under the effect of air blast 14, and 9 ejections through the inner housing air channel are the cooling of burner bocca.For the equipment that the inner housing air channel is not set, its burner bocca outside should pour into a mould that one deck is high temperature resistant to water material feeding.During device start, diesel oil sprays in the straight barrel type burner hearth 8 through igniting oil pipe 2 under the effect of diesel oil igniter 13, by manual ignition or electronic ignition, and the coal dust air Mixture of igniting.

Claims (3)

1. efficient coal dust furnace of multiple duct straight barrel type, comprise fire door (6), burner hearth (8), spit tube (10), it is characterized in that adopting fire door (6), burner hearth (8) to be assembled into one with burner spit tube (10), fire door (6) is provided with coal powder injection pipe (1), igniting oil pipe (2), interior air channel (3), coal powder injection air channel (4), fan inleting pipe road (5), outer air channel (7), coal powder injection pipe (1) connects coal powder injection air channel (4), and igniting oil pipe (2) is fixed in the interior air channel (3); Interior air channel (3), coal powder injection air channel (4), outer air channel (7) all communicate with straight barrel type burner hearth (8).
2. the efficient coal dust furnace of multiple duct straight barrel type according to claim 1 is characterized in that described burner hearth (8) outside is provided with inner housing air channel (9).
3. the efficient coal dust furnace of multiple duct straight barrel type according to claim 1 is characterized in that described burner hearth (8), burner spit tube (10) make the identical straight barrel type of internal diameter respectively.
CNU2007200363354U 2007-04-06 2007-04-06 Multi-duct straight cylinder type high-efficiency coal dust combustion furnace CN201028505Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200363354U CN201028505Y (en) 2007-04-06 2007-04-06 Multi-duct straight cylinder type high-efficiency coal dust combustion furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200363354U CN201028505Y (en) 2007-04-06 2007-04-06 Multi-duct straight cylinder type high-efficiency coal dust combustion furnace

Publications (1)

Publication Number Publication Date
CN201028505Y true CN201028505Y (en) 2008-02-27

Family

ID=39132716

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007200363354U CN201028505Y (en) 2007-04-06 2007-04-06 Multi-duct straight cylinder type high-efficiency coal dust combustion furnace

Country Status (1)

Country Link
CN (1) CN201028505Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103727526A (en) * 2013-12-23 2014-04-16 惠建军 Vertical bidirectional blast injected pulverized-coal combustion furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103727526A (en) * 2013-12-23 2014-04-16 惠建军 Vertical bidirectional blast injected pulverized-coal combustion furnace

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080227

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