CN103727526A - Vertical bidirectional blast injected pulverized-coal combustion furnace - Google Patents

Vertical bidirectional blast injected pulverized-coal combustion furnace Download PDF

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Publication number
CN103727526A
CN103727526A CN201310713550.3A CN201310713550A CN103727526A CN 103727526 A CN103727526 A CN 103727526A CN 201310713550 A CN201310713550 A CN 201310713550A CN 103727526 A CN103727526 A CN 103727526A
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CN
China
Prior art keywords
furnace
coal
heater
vertical
air blast
Prior art date
Application number
CN201310713550.3A
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Chinese (zh)
Inventor
惠建军
Original Assignee
惠建军
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.)
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Publication date
Application filed by 惠建军 filed Critical 惠建军
Priority to CN201310713550.3A priority Critical patent/CN103727526A/en
Publication of CN103727526A publication Critical patent/CN103727526A/en

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Abstract

The invention discloses a vertical bidirectional blast injected pulverized-coal combustion furnace which comprises a furnace body, a flame outlet, a coal channel, an ignition oil gun, a pulverized coal swirler and a swirl air duct, wherein the furnace body is of a circular vertical structure, an inner cavity of the furnace body forms a cylindrical pulverized coal combustion chamber, the flame outlet is a circular straight flame outlet and arranged on the side wall of the furnace body, the coal channel, the pulverized coal swirler and the swirl air duct are respectively distributed at the upper and lower ends of the furnace body, and the ignition oil gun is arranged at the lower end of the furnace body. Compared with the prior art, the combustion furnace disclosed by the invention has the characteristics of sufficient combustion, high combustion efficiency, long service life, and capability of effectively improving the adaptability to coal quality, thereby both lowering the cost and saving energy.

Description

Vertical two-way air blast coal burning furnace
Technical field
The invention belongs to combustion furnace technical field, be specifically related to a kind of vertical two-way air blast coal burning furnace.
Background technology
Existing coal dust firing furnace structure all adopts the structure of the configuration of taper burner and shaft coaxial line, the unidirectional coal powder injection of afterbody.The defect that this structure exists has:
(1), because burner is taper, the thermal-flame of being come by combustion chamber forms high-speed flame stream strong ablation is herein washed away because being subject to resistance herein, and have more than is needed how long just need of burner changed once, causes higher production maintenance cost.
(2) due to the winding-up burning of coal dust level, under Action of Gravity Field, make a part of particle drop on bottom, combustion chamber and cannot burn away compared with large and the coal dust completely that do not burn, make this part coal dust finally become cinder, caused very large waste.
Seek the problem pendulum of more abundant, the more economical high-efficient powdered-coal of a kind of longer service life, coal dust firing in face of people.
Summary of the invention
The above-mentioned defect existing for solving prior art, the object of the invention is to design and a kind ofly to supplied coal dust, can fully burn, and efficiency of combustion is high, the vertical two-way air blast coal burning furnace of longer service life.
For achieving the above object, the technical solution used in the present invention is: this vertical two-way air blast coal burning furnace, there is body of heater, crater, breeching, torch oil gun, coal powder cyclone device and eddy flow air channel, it is characterized in that: described body of heater is circular vertical structure, at body of heater inner chamber, form cylindrical pulverized coal combustor, described crater is circular straight mouthful crater, be arranged on sidewall of the furnace body, described breeching, coal powder cyclone device, eddy flow air channel are arranged in the two ends up and down of body of heater, and described torch oil gun is arranged on one end of body of heater.
Described furnace body outer wall is sandwich type structure, and the space of described interlayer forms pre-hot-flow flue, and air inlet is communicated with pre-hot-flow flue, and pre-hot-flow flue is communicated with the air compartment that is positioned at body of heater two ends, air compartment by eddy flow air channel to the indoor eddy flow wind that is blown into of coal dust firing.
The axis of described crater and coal dust firing chamber axis are 90 degree left and right angles.
Described torch oil gun is arranged on the lower end of body of heater.
The described breeching that is positioned at the upper and lower two ends of body of heater can walk abreast respectively a plurality of breechings are set.
The lower end of described body of heater is provided with unloading valve.
Described unloading valve is a plurality of.
Described body of heater is arranged on support, and frame bottom is provided with road wheel.
Adopt the beneficial effect of technique scheme: the present invention changes existing horizontal single-headed air blast coal burning furnace into vertical two-way air blast coal burning furnace.Its advantage is as follows:
(1) coal burning furnace is changed into after vertical vertical displacement structure by horizontal positioned structure, and the interior refractory material of stove is heated more even, has avoided localized burn.The air blast coal powder injection that liquidates has up and down reduced flame flow flow velocity, has lowered washing away refractory material in stove.
Crater changes circular straight mouth into by taper and makes unresisted the passing through of flame flow milli in addition, has effectively reduced the ablation of burner is washed away, thereby improved widely the bulk life time of combustion furnace.
(2) coal dust is changed into after two-way vertical injection by horizontal-jet in coal burning furnace, and the bulky grain in coal dust and do not fire clean coal dust is again held up to enter in flame by the eddy flow wind on adjustable lower eddy flow air channel and burns away in dropping process.Thereby realized the burning time that has extended coal dust in limited combustion space, made coal dust firing more abundant, efficiency of combustion is high, not only reduced cost but also saved the energy.
(3) due to by regulating the power of the upper and lower eddy flow wind length of burning time of coal dust can being controlled in stove, and make this combustion furnace can the burn lower bituminous coal of fugitive constituent and hard bituminous coal.Effectively improve the adaptive capacity to ature of coal, further reduced remote coal separation fortune coal and the operating cost that increases.
(4) sandwich type structure by furnace body outer wall forms pre-hot-flow flue, can preheat entering the air of pulverized coal combustor, makes burning more abundant, has improved the thermal efficiency.
(5) coal dust Boiling Combustion in furnace chamber, the cinder after burning is fallen apart by eddy flow wind, and prevented from caking drops on the inwall outer circumferential side of cylindrical pulverized coal combustor, can conveniently from unloading valve, discharge.
Accompanying drawing explanation
Fig. 1 is the structural representation of vertical two-way air blast coal burning furnace of the present invention.
Fig. 2 is the structural representation of non-perpendicular crater.
The specific embodiment
In conjunction with the accompanying drawings and embodiments, further illustrate concrete structure of the present invention, its feature and advantage will be clearer.
Vertical two-way air blast coal burning furnace as shown in Figure 1, has circular vertical furnace, and body of heater inner chamber forms cylindrical pulverized coal combustor 16, and a circular straight mouthful crater 1 is arranged on sidewall of the furnace body, and its crater axis and coal dust firing chamber axis are 90 degree left and right angles.Crater can be also non-perpendicular crater structure according to actual relevant device coupling as shown in Figure 2.Upper breeching 4, lower breeching 11 are separately positioned on body of heater upper/lower terminal center, and upper coal powder cyclone device 3, lower coal powder cyclone device are separately positioned on the exit position of breeching 4 and lower breeching 11, make coal dust wind be eddy flow shape and spray into pulverized coal combustor 16.The two ends up and down of body of heater are also respectively equipped with ipper air chamber 5 and lower air chamber 10, and upper lower air chamber is communicated with pulverized coal combustor 16 by forward spin flow air channel 2, lower eddy flow air channel 14 respectively, in pulverized coal combustor 16, is blown into eddy flow wind.Described furnace body outer wall is sandwich type structure, and the space of described interlayer forms pre-hot-flow flue 6, and pre-hot-flow flue 6 has enterprising air port 7 and lower air inlet 9, and pre-hot-flow flue is communicated with ipper air chamber 5 and the lower air chamber 10 that is positioned at body of heater two ends simultaneously.In described lower breeching 11, be provided with torch oil gun 12.The lower end of described body of heater is provided with unloading valve 13, according to body of heater volume size, a plurality of unloading valves can be set.Described body of heater is arranged on support, and frame bottom is provided with road wheel.
As further improvement, according to coal burning furnace, produce the needs of heat, can walk abreast respectively a plurality of breechings are set at the described breeching that is positioned at the upper and lower two ends of body of heater, by a plurality of breechings whiles to the interior coal powder injection of pulverized coal combustor 16.
The coal dust furnace of being made by said structure, through prototype test, coal dust firing is abundant, in the cinder after burning, hardly containing unburned coal dust, has reached the designing requirement of expection.
The present invention describes by accompanying drawing, without departing from the present invention, can also carry out various conversion and be equal to replacement patent of the present invention, therefore, patent of the present invention is not limited to disclosed specific implementation process, and should comprise the whole embodiments that fall within the scope of Patent right requirement of the present invention.

Claims (8)

1. a vertical two-way air blast coal burning furnace, there is body of heater, crater, breeching, torch oil gun, coal powder cyclone device and eddy flow air channel, it is characterized in that: described body of heater is circular vertical structure, at body of heater inner chamber, form cylindrical pulverized coal combustor, described crater is circular straight mouthful crater, be arranged on sidewall of the furnace body, described breeching, coal powder cyclone device, eddy flow air channel are arranged in the two ends up and down of body of heater, and described torch oil gun is arranged on one end of body of heater.
2. vertical two-way air blast coal burning furnace as claimed in claim 1, it is characterized in that: described furnace body outer wall is sandwich type structure, the space of described interlayer forms pre-hot-flow flue, air inlet is communicated with pre-hot-flow flue, pre-hot-flow flue is communicated with the air compartment that is positioned at body of heater two ends, air compartment by eddy flow air channel to the indoor eddy flow wind that is blown into of coal dust firing.
3. vertical two-way air blast coal burning furnace as claimed in claim 1 or 2, is characterized in that: the axis of described crater and coal dust firing chamber axis are 90 degree left and right angles.
4. vertical two-way air blast coal burning furnace as claimed in claim 1 or 2, is characterized in that: described torch oil gun is arranged on the lower end of body of heater.
5. vertical two-way air blast coal burning furnace as claimed in claim 1 or 2, is characterized in that: described in be positioned at the upper and lower two ends of body of heater breeching can walk abreast respectively a plurality of breechings are set.
6. vertical two-way air blast coal burning furnace as claimed in claim 1 or 2, is characterized in that: the lower end of described body of heater is provided with unloading valve.
7. vertical two-way air blast coal burning furnace as claimed in claim 6, is characterized in that: described unloading valve is a plurality of.
8. vertical two-way air blast coal burning furnace as claimed in claim 1 or 2, is characterized in that: described body of heater is arranged on support, and frame bottom is provided with road wheel.
CN201310713550.3A 2013-12-23 2013-12-23 Vertical bidirectional blast injected pulverized-coal combustion furnace CN103727526A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201310713550.3A CN103727526A (en) 2013-12-23 2013-12-23 Vertical bidirectional blast injected pulverized-coal combustion furnace

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CN103727526A true CN103727526A (en) 2014-04-16

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2121613U (en) * 1991-12-19 1992-11-11 宁夏工学院 Controlled eddy wind direct flow coal dust burner
JP2002323206A (en) * 2001-04-26 2002-11-08 Noritz Corp Swirl combustion device
CN101029728A (en) * 2006-12-25 2007-09-05 广州迪森热能技术股份有限公司 Ceramic hot-blast furnace by emusified coking slurry cyclone burner
CN201028505Y (en) * 2007-04-06 2008-02-27 何金龙 Multi-duct straight cylinder type high-efficiency coal dust combustion furnace
CN102777894A (en) * 2012-05-28 2012-11-14 李延新 Reverse powder injection combustor
CN103322556A (en) * 2013-05-20 2013-09-25 河南陆德筑机股份有限公司 Pulverized coal burner
CN203731391U (en) * 2013-12-23 2014-07-23 惠建军 Vertical two-way blasting coal spraying combustion furnace

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2121613U (en) * 1991-12-19 1992-11-11 宁夏工学院 Controlled eddy wind direct flow coal dust burner
JP2002323206A (en) * 2001-04-26 2002-11-08 Noritz Corp Swirl combustion device
CN101029728A (en) * 2006-12-25 2007-09-05 广州迪森热能技术股份有限公司 Ceramic hot-blast furnace by emusified coking slurry cyclone burner
CN201028505Y (en) * 2007-04-06 2008-02-27 何金龙 Multi-duct straight cylinder type high-efficiency coal dust combustion furnace
CN102777894A (en) * 2012-05-28 2012-11-14 李延新 Reverse powder injection combustor
CN103322556A (en) * 2013-05-20 2013-09-25 河南陆德筑机股份有限公司 Pulverized coal burner
CN203731391U (en) * 2013-12-23 2014-07-23 惠建军 Vertical two-way blasting coal spraying combustion furnace

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Application publication date: 20140416

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