CN105921081A - Combustion apparatus for fluidized bed and fluidized bed with combustion apparatus - Google Patents
Combustion apparatus for fluidized bed and fluidized bed with combustion apparatus Download PDFInfo
- Publication number
- CN105921081A CN105921081A CN201610242301.4A CN201610242301A CN105921081A CN 105921081 A CN105921081 A CN 105921081A CN 201610242301 A CN201610242301 A CN 201610242301A CN 105921081 A CN105921081 A CN 105921081A
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- burner
- furnace wall
- puff prot
- burners
- gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/1836—Heating and cooling the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00504—Controlling the temperature by means of a burner
Abstract
The invention relates to a combustion apparatus for a fluidized bed. The combustion apparatus is arranged below the fluidized bed and comprises at least two burners; the combustion apparatus comprises a cone furnace wall, wherein cone generatrices of the cone furnace wall or extending lines thereof converge at the bottom of the combustion apparatus, at least two burners whose gas vents are on the furnace walls are provided, and the gas vents are established on the cone furnace walls according to a mode that extending lines of central axes of the burners and the gas vent of the other burner are not directly met; at least gas vents of two burners are formed according to the mode: high temperature gas ejected from at least two burners during combustion contacts the cone furnace wall along an approximate tangential direction, so that a circumferential diffluence and an axially upward diffluence of the gas are formed by a reverse thrust of the cone furnace wall, and a rotational flow environment surrounding the center is formed in the fluidized bed. The burners installed in a high temperature reaction furnace during continuous working the combustion apparatus are not easy to burn out, service life of the equipment is prolonged, and the apparatus has environmental protection effects for saving energy.
Description
Technical field
The present invention relates to the air intake installation for fluid bed, particularly relate to a kind of burner for fluid bed
And it is furnished with the fluid bed of this burner.
Background technology
Phosphoric acid occupies critical role in national economy, is to produce phosphate fertilizer and phosphatic intermediate raw material.Phosphoric acid
And downstream product is widely used in the fields such as chemical industry, agricultural, medicine, food, electronics.
At present, domestic and international phosphoric acid industry production method is divided into wet method and two kinds of process routes of full-boiled process.Phosphoric acid by wet process
It is to prepare phosphoric acid by mineral acid (mainly sulphuric acid, hydrochloric acid) decomposing phosphate rock.Phosphoric acid by wet process does not require nothing more than rock phosphate in powder
Of high grade, quality good, and this method prepare phosphoric acid impurity content higher, phosphoric acid concentration is low.Work as previous existence
The most progressively dilution of phosphate rock resource in the range of boundary, sulphuric acid resource is the most in short supply simultaneously, phosphorus ore and sulphuric acid
Price rises, and to get rid of a large amount of ardealite in addition, therefore, use being permitted of Wet-process phosphoric acid (WPPA) after this method acidolysis
Many factories are also increasingly difficult.Thermal phosphoric acid be with electrothermal way produce yellow phosphorus as raw material, through burning prepare five oxygen
Changing two phosphorus, phosphorus pentoxide prepares phosphoric acid after hydration.Thermal phosphoric acid purity is high, but owing to electrothermal way is raw
Producing yellow phosphorus energy consumption high, therefore product is relatively costly.
The fluid bed utilizing fluidization technology produces phosphorus pentoxide and has heat transfer and mass-transfer efficiency height, bed temperature
The features such as degree tends to uniform, it is possible to prevent hot-spot, and operation is relatively stable, the most as a basis
Technology, is widely used in the every field such as chemical industry, metallurgy, the energy, environmental protection.
Chinese patent CN103506056B discloses a kind of fluid bed without sieve plate and the preparation side of boron chloride
Method, specifically includes: bed body；Carrier gas body source, provides towards the top of bed body to bed body from the bottom of bed body and carries
Bromhidrosis body；Reacting gas provides device, provides reacting gas to bed body；Raw material feed device, carries to bed body
For powder material；Heater, heats bed body；Slag-drip opening, the reaction in bed body generated is anti-
Slag is answered to discharge；Segregation apparatus, is connected to bed body and is separated by reacted for bed body material, final to obtain
Product；Wherein, described segregation apparatus includes: gas-solid separating device, is used for making in the reacted material of bed body
Gaseous material separate with solid matter；Gas air separation is many for making in the reacted material of bed body
Plant gaseous material to separate；And condensing unit, obtain described final products by condensation.Also include carrier gas
Body guiding piece, guides for carrier gas body source is supplied to the vector gas of bed body, and vector gas
The oblique portion that the oriented bed body of guiding piece band is tapered.The vector gas of carrier gas body source enters into vector gas guiding piece
Position interior connecting carrier gas inlet of direction opposite carrier gas guide of carrier gas inlet
Wall tilts.Aforementioned patents disclose and use the vector gas guiding piece being obliquely installed with inwall for being drawn by gas
Enter reacting furnace, but the vector gas guiding piece of above-mentioned patent is arranged in stretching into stove.For production five
Aoxidize (1350～1400 DEG C) under the hot conditions of two phosphorus processes, stretch into the burner in stove and easily opposite is burnt
Mouth burns out, thus reduces the service life of equipment.Further, stretch into the burner in stove and can make gasification materiel
Conversion zone diminish, fused materials easily sticks on furnace wall, adds the wash number of equipment, is unfavorable for
Energy-conservation.
Summary of the invention
For the deficiency of prior art, the invention provides a kind of burner for fluid bed and be furnished with this
The fluid bed of burner, uses the reacting furnace at fluid bed to arrange at least two burner, and is sprayed by burner
One lateral edges of QI KOU is arranged with the mode of taper furnace wall, and the puff prot of burner flushes with taper furnace wall,
Thus in reacting furnace, form Scroll-tupe air-flow, material is held up.
The invention provides a kind of burner for fluid bed, described burner is arranged in fluid bed bottom
And including that at least two burner, described burner include taper furnace wall, the cone of described taper furnace wall is female
Line or its extended line converge at the bottom of described burner, and described at least two burner is on furnace wall
The side that puff prot is the extended line according to each burner central axis the most directly to meet with the puff prot of another burner
Formula is opened on taper furnace wall, and wherein, the puff prot of described at least two burner is shape in the following manner
Become: the high-temperature gas ejected through described at least two burner when burning approximately along tangential with described taper
Meeting in furnace wall so that pushes away the shunting and shunting axially upward formed circumferentially through described taper furnace wall is counter,
Thus in described fluid bed, form the cyclone reaction environment around center.
According to a kind of preferred implementation, described at least two burner central axis between any two is same angular
Degree is staggeredly arranged.
According to a kind of preferred implementation, described burner includes three burners, in described three burners
Mandrel line is staggeredly arranged in hexagonal angle at grade.
According to a kind of preferred implementation, described at least two burner is arranged along described taper furnace wall helically line.
According to a kind of preferred implementation, described burner operationally takes the side of constant flow rate and constant backpressure
Formula injection high-temperature gas.
According to a kind of preferred implementation, described burner operationally takes timesharing subregion Combustion System.
According to a kind of preferred implementation, described burner at least includes combustor and puff prot, wherein, described
The internal diameter of puff prot less than the internal diameter of described combustor, the outlet edge of described puff prot at least with taper furnace wall
Flush, at least side outer wall of described puff prot and the tangent setting in described taper furnace wall, going out of described puff prot
Mouth edge is arcuate structure, and its radian is consistent with described taper furnace wall partial arcs.
According to a kind of preferred implementation, the central axis of described burner and the central shaft of described fluidized reaction stove
The perpendicular setting of line, or
The central axis of described burner and the central axis setting at an acute angle of described fluidized reaction stove.
According to a kind of preferred implementation, described combustor uses refractory material to be prepared from, wherein said combustion
The mid portion burning room introduces natural gas, and outside introduces the mode of air makes natural gas raw with air mixed combustion
Uniformly high temperature gas flow.
Present invention also offers a kind of fluid bed, the gas stream of described fluid bed is by aforesaid burner shape
The spiral vortex type gas stream become, wherein said burner is arranged in fluid bed bottom and includes at least two burner,
Described burner includes taper furnace wall, and cone bus or its extended line of described taper furnace wall converge at institute
State the bottom of burner, and the puff prot that described at least two burner is on furnace wall is according to each burner
The mode that the extended line of central axis and the puff prot of another burner the most directly meet is opened on taper furnace wall
, wherein, the puff prot of described at least two burner is formed in the following manner: when burning through institute
State the high-temperature gas that at least two burner ejects to meet approximately along tangential and described taper furnace wall so that through institute
State that taper furnace wall is counter pushes away the shunting and shunting axially upward formed circumferentially.
The Advantageous Effects of the present invention is primarily present in the following aspects:
1, the present invention is tangent with taper furnace wall by the side outer wall with puff prot for the burner of fluid bed
Mode at least two is set such that it is able to bottom reacting furnace through taper furnace wall counter push away formation along furnace wall circumference
Spiral vortex type gas stream axially upwards, it is easier to material is held up.And spiral vortex type air-flow is owing to around flowing
Speed is difficult to be bonded on furnace wall more than center flow velocity, material easily melted under high temperature of the present invention.
2, its puff prot edge of the burner of the present invention is taked to flush with taper furnace wall, sets bottom reacting furnace
Put multiple burner.Puff prot on furnace wall according to the central shaft of each burner extended line and another burner not
The mode directly met is opened on taper furnace wall.Under the hot conditions of the present invention, the high temperature of burner ejection
Other burners will not be burnt out by gas stream, thus plays the effect in extension device service life.
3, present invention also offers a kind of fluid bed being furnished with burner of the present invention, in the fluid bed of the present invention
Gas stream be spiral vortex type gas stream, its middle flow velocity is less than the discharge of surrounding flow velocity, beneficially logistics.With
Time make vortex air flow to hold up material further by the conical furnace wall construction of fluidized-bed reaction furnace bottom.
Accompanying drawing explanation
Fig. 1 is the present invention top view for a kind of preferred implementation of the burner of fluid bed；
Fig. 2 is the present invention schematic diagram for a kind of preferred implementation of the burner of fluid bed；With
Fig. 3 is the schematic diagram of a kind of preferred implementation of fluidized-bed reaction furnace bottom of the present invention.
Reference numerals list
100: burner 101: burner 101a: puff prot
102: burner 103: reaction chamber 104: reacting furnace
201: slag-drip opening 202: taper furnace wall 301: the first cone
302: the second cones
Detailed description of the invention
It is described in detail below in conjunction with the accompanying drawings.
The invention provides a kind of burner for fluid bed, described burner is arranged under fluid bed
Portion and include at least two burner.According to a kind of preferred implementation, with reference to Fig. 1, burner includes three
Individual burner 100,101,102.Described burner at least includes combustor and puff prot 101a.Wherein, institute
State and combustor is passed through natural gas and air carries out combustion reaction.Described combustor connects puff prot 101a, its
The internal diameter of middle puff prot 101a is less than the internal diameter of combustor.Cylindrically connect inside described puff prot 101a
Described combustor, and puff prot 101a is non-metallic refractory.Sky is introduced by the mid portion of combustor
So gas, outside introduces the mode of air makes natural gas generate uniform high temperature air-flow with air mixed combustion.
The burner of the present invention also includes taper furnace wall, the cone bus of described taper furnace wall or its prolongation
Line converges at the bottom of burner.The outlet edge of puff prot 101a at least flushes with taper furnace wall, jet
The side outer wall of mouth 101a is tangent with the part arc of taper furnace wall.The outlet of puff prot 101a is and taper
The arcuate structure that junction, furnace wall is consistent.The outlet edge of described puff prot 101a is arcuate structure, its radian
Consistent with described taper furnace wall partial arcs.
The puff prot of at least two burner of the present invention is formed as follows: when burning through nozzle
The high-temperature gas ejected is approximately along tangentially meeting with taper furnace wall so that push away formation through described taper furnace wall is counter
Shunting circumferentially and shunting axially upward, thus in fluid bed, form the cyclone reaction around center
Environment.
The hot conditions of the present invention refers to that Phosphate ore reduction reacts the temperature that carries out, i.e. 1150～1400 DEG C.?
At a temperature of Gai, phosphorus ore easily softens melted.
The hot-gas temperature of the burner puff prot ejection of the present invention is 1150～1400 DEG C.
At least two burner of present invention puff prot on furnace wall is the prolongation according to each burner central axis
The mode that the puff prot of line and another burner the most directly meets is opened on taper furnace wall.According to the present invention one
Planting preferred implementation, the central shaft of described burner 100,101,102 is that hexagonal angle is staggeredly arranged.
That is, at vertical direction, the central axis of described burner 100,101,102 and described fluidized reaction stove 104
The perpendicular setting of central axis；At horizontal aspect, the central axis of described burner 100,101,102
At grade, and it is staggeredly arranged in hexagonal angle between any two, and the central axis of arbitrary burner
The puff prot of extended line and another burner the most directly meet.
According to the another kind of preferred implementation of the present invention, the central shaft of described burner 100,101,102
Line and the central axis setting at an acute angle of described fluidized reaction stove 104.The puff prot 101a of the most described burner
Obliquely and/or obliquely direction is used to arrange.
A preferred embodiment of the invention, the burner of the present invention includes more than three burners,
And the arrangement mode between burner is that equal angular is staggeredly arranged according to central axis between any two, and
The extended line of the central axis of arbitrary burner the most directly meets with the puff prot of another burner.
A preferred embodiment of the invention, the burner of the burner of the present invention is along taper furnace wall
202 helically line arrange.The i.e. central axis of multiple burners of the present invention has difference in height at vertical direction,
In the horizontal direction, there is identical angle arrangement between any two.The prolongation of the central axis of arbitrary burner
Line the most directly meets with the puff prot of another burner.
The combustor of the present invention uses refractory material to be prepared from, and introduces natural gas by mid portion, outward
Side introduces the mode of air makes natural gas form uniform air flow with air mixed combustion.This uniform air flow enters spray
QI KOU 101a, owing to the internal diameter of puff prot 101a diminishes, uniform air flow flow velocity becomes big, at puff prot 101a
The air-flow initial velocity spraying into reacting furnace 104 is 50～150 meter per seconds.
Fig. 2 shows the fluidized-bed reaction being furnished with burner of the present invention of a kind of preferred implementation of the present invention
The schematic diagram of stove.Wherein, the bottom of described reacting furnace 104 is taper furnace wall 202, its cone bus or
Its extended line converges at the bottom of burner.At least two burner 100,101,102 is on furnace wall
Puff prot is that the puff prot of the extended line according to each burner central axis and another burner the most directly meets
Mode is opened on taper furnace wall.Described taper furnace wall 202 connects at least 3 slag-drip openings 201.According to
A kind of preferred implementation, the central axis of three slag-drip openings or its extended line intersect, three central axis or
Its center axis formed Rhizoma Sparganii cone, the side of this cone be drift angle be the isosceles triangle of 30 °.
A preferred embodiment of the invention, the fluidized-bed reaction furnace bottom being furnished with this burner is
There is two parts conical structure that angle is different.The cone of reaction chamber is as it is shown on figure 3, wherein first bore
The inclined plane of body 301 and the angle of horizontal plane are θ, the inclined plane of the second cone 302 and the folder of horizontal plane
Angle is α, wherein α ＞ θ, α preferably 67 °.It is arranged such, it is easier to make to be bonded on reaction furnace wall
Fused materials is flowed down along taper furnace wall and is discharged by slag-drip opening.The puff prot of described burner is arranged on the first cone
On 301,3 central axis are set in the bottom of the second cone 302 or its extended line is crossed to form triangular pyramid
Slag-drip opening.The isosceles triangle that the preferred drift angle in each side is 30 ° of triangular pyramid.
A preferred embodiment of the invention, the burner of the present invention be passed through burning gases work time,
Fuel gas has constant back pressure, through the backward reaction chamber injection high-temperature gas that burns.Preferably, the present invention is high
The constant backpressure of wet fluid fuel gas is 50kPa, and after burning, constant flow rate is 60 meter per seconds.
According to the another kind of preferred implementation of the present invention, at least 2 burners of the present invention are being passed through natural gas
And air carries out burning and produces high temperature gas flow when spray in reaction chamber, employing timesharing subregion Combustion System.Many
Individual burner can take service intermittent mode；The most each burner is by connecting computer control, and controller can
Set injecting time and the idle hours of high-temperature gas in each burner, reach in the work of one or several burners
After the set time period, stop injection high-temperature gas enter resting state, then control by another or
Several burners being in resting state are operated generation high temperature gas flow.So that each burner can depend on
Secondary it is operated generation rotational flow gas, is more likely formed the cyclone reaction environment around fluid bed center, and can
Save the burning of combustion gas, in the service life of extension device, play effects of energy conservation and environmental protection.
The burner of the present invention passes through sealing member noose in reacting furnace 104 main body, it is possible to play reacting furnace close
Envelope effect, prevents the loss of internal heat from causing the decline of furnace interior reaction temperature.Described sealing member part is deposited
In being reacting furnace, another part exposes reacting furnace and extends to the external world.
Embodiment 1
The present invention is for the burner of fluid bed and is furnished with the fluid bed of this burner and sets as follows
Put:
The present embodiment includes two burners for the burner of fluid bed.Wherein the first burner and the second burner
Central axis be parallel to each other but the most directly intersect straight line, and in the same plane.Described
The high-temperature gas of the puff prot ejection of one burner and the second burner has at least tangential along taper furnace wall vector.
The high-temperature gas produced in the combustor of the first burner and the second burner and continuously enters in reaction chamber simultaneously.Come
The gas direction sprayed along taper furnace wall from two strands of high temperature gas flows of the first burner and the second burner is contrary, through phase
Collision forms high speed vortex gas stream mutually, and pushes away, through the counter of taper furnace wall, the shunting formed along taper furnace wall circumference
Shunting axially upward, thus form high speed whirlwind gas stream upwards and material is held up formation fluid bed.
Embodiment 2
The present embodiment is for the burner of fluid bed and is furnished with the fluid bed of this burner and joins as follows
Put:
The present embodiment includes three burners being installed on taper furnace wall for the burner of fluid bed.Wherein
The central axis of one burner, the second burner and the 3rd burner at grade, mutually in 120 ° of angle sides
Formula arranges.Described first burner, the second burner and the 3rd burner puff prot ejection high-temperature gas have to
Few vector tangential along taper furnace wall.The high-temperature gas of three burner combustion indoor generations and continuously enters simultaneously
In reaction chamber.Spray from three strands of high temperature gas flows of three burners along taper furnace wall, through mutually colliding,
Impact, eddy flow form high speed vortex gas stream, and it is axial along taper furnace wall to push away formation through taper furnace wall counter
Shunting and shunting axially upward, thus form high speed whirlwind gas stream upwards and material is held up formation stream
Change bed.
Embodiment 3
The fluid bed being furnished with burner of the present invention in the present embodiment is arranged as follows:
The present embodiment uses three burners be installed in fluidized-bed reaction stove 104, wherein the first burner, the
The central axis of two burners and the 3rd burner is arranged with the central axis angle at an acute angle of reacting furnace 104.Preferably
, the high temperature gas flow of the puff prot ejection of described first burner, the second burner and the 3rd burner is towards taper
The oblique upper of furnace wall.The high-temperature gas of the puff prot ejection of described first burner, the second burner and the 3rd burner
There is at least tangential along oblique upper, taper furnace wall vector.The high-temperature gas of three burner combustion indoor generations is same
Time and continuously enter in reaction chamber.Spray obliquely from three strands of high temperature gas flows along taper furnace wall, through mutually touching
Hit formation high speed vortex gas stream.Thus form high speed whirlwind gas stream upwards and material is held up formation fluidisation
Bed.
Embodiment 4
The present embodiment is furnished with the fluid bed of burner of the present invention and arranges as follows:
The present embodiment uses four burners be installed in fluidized-bed reaction stove 104, wherein the first burner, the
The central axis of two burners, the 3rd burner and the 4th burner is arranged with the central axis angle at an acute angle of reacting furnace.
Preferably, the high temperature gas flow of the puff prot ejection of described first burner, the second burner is towards taper furnace wall
Oblique upper is tangential, and the high temperature gas flow of the puff prot ejection of the 3rd burner and the 4th burner is towards taper furnace wall
Obliquely downward is tangential.Therefore in reaction chamber, form two strands of high-temperature gases have and at least cut along oblique upper, taper furnace wall
To vector, in reaction chamber, form two strands simultaneously have along the tangential vector of taper furnace wall obliquely downward.So
Arranging four burners, the high temperature gas flow of oblique top sprays obliquely along taper furnace wall, through mutually collision, punching
Hit, eddy flow forms high speed vortex gas stream, thus forms high speed whirlwind gas stream upwards and material is held up shape
Become fluid bed.The high temperature gas flow of oblique lower section sprays obliquely along taper furnace wall, it is possible to glue reaction chamber inwall
Glutinous fused mass plays and accelerates its effect flowing to slag-drip opening.
Embodiment 5
This enforcement is furnished with the fluid bed of burner of the present invention and arranges as follows:
The present embodiment uses four burners be installed in fluidized-bed reaction stove 104, wherein the first burner, the
Two burners, the 3rd burner and the central axis of the 4th burner are vertically arranged with the axis of reacting furnace, i.e. described
The high temperature gas flow of the puff prot ejection of burner is towards horizontal direction.In the present embodiment the first burner,
The central axis of the second burner, the 3rd burner and the 4th burner is the most at grade；Described burner uses spiral shell
Spin line is arranged in reacting furnace taper furnace wall.According to a kind of preferred implementation, the puff prot of the first burner is higher than
Second burner, the puff prot of the second burner is higher than the 3rd burner, and the puff prot of the 3rd burner is higher than the 4th burner.
First burner and the centerline axis parallel of the 3rd burner, the second burner and the centerline axis parallel of the 4th burner,
Angle between the central axis of the first burner and the second burner is right angle.It is arranged such four burners, it is possible to
The reaction chamber of reacting furnace is formed continuously spiral vortex type gas stream.Be conducive to the rising of fluidised bed material, cannot reduce completely
The decline of full response material is discharged, thus strengthens the utilization rate of material.High speed vortex gas is formed through mutually collision
Body stream, thus form high speed whirlwind gas stream upwards and material is held up formation fluid bed.
The burner for fluid bed of the present invention and be furnished with the fluid bed of this burner, by arranging extremely
Few two burners, the puff prot of burner is flushed with the taper furnace wall of reacting furnace and puff prot side outer wall and
The mode that taper furnace wall is tangent so that the burner being arranged in high temperature reaction stove is difficult to be burned, and increases and sets
Standby service life.And the gas stream of puff prot ejection on the one hand can approximately along tangentially with taper furnace wall phase
Meeting, on the other hand gas flows through the counter of taper furnace wall and pushes away the shunting formed circumferentially and shunting axially upward,
At least two strands of gas streams form spiral vortex type air-flow and are held up by material.Spiral vortex type air-flow intermediate flow speed is less than surrounding stream
Speed, in the material reaction uphill process of the present invention, under hot conditions, material is susceptible to melt, fused mass
Expect that the flow velocity owing to centre is less can realize less being bonded on reaction furnace wall.Thus decrease reaction chamber
The cleaning of stove, plays the saving energy, the effect of environmental protection.
It should be noted that above-mentioned specific embodiment is exemplary, those skilled in the art can be at this
Find out various solution under the inspiration of bright disclosure, and these solutions also belong to the public affairs of the present invention
Open scope and fall under the scope of the present invention.It will be understood by those skilled in the art that the present invention illustrates
Book and accompanying drawing thereof are illustrative and not constitute limitations on claims.Protection scope of the present invention is by weighing
Profit requires and equivalent limits.
Claims (10)
1. for the burner of fluid bed, described burner be arranged in fluid bed bottom and include to
Few two burners, it is characterised in that described burner includes taper furnace wall (202), described taper furnace wall
(202) cone bus or its extended line converge at the bottom of described burner, and described at least two
Individual burner puff prot on furnace wall is the jet of the extended line according to each burner central axis and another burner
The mode that mouth the most directly meets is opened on taper furnace wall (202), wherein, and described at least two burner
Puff prot is formed in the following manner: the High Temperature Gas ejected through described at least two burner when burning
Body meets approximately along tangential and described taper furnace wall (202) so that push away through described taper furnace wall (202) is counter
Form shunting circumferentially and shunting axially upward, thus formed around center in described fluid bed
Cyclone reaction environment.
2. burner as claimed in claim 1, it is characterised in that described at least two burner two-by-two it
Between central axis be that equal angular is staggeredly arranged.
3. burner as claimed in claim 1 or 2, it is characterised in that described burner includes
Three burners (100,101,102), the central axis of described three burners (100,101,102)
It is staggeredly arranged in hexagonal angle at grade.
4. burner as claimed in claim 1 or 2, it is characterised in that described at least two burner
Arrange along described taper furnace wall (202) helically line.
5. burner as claimed in claim 1 or 2, it is characterised in that described at least two burner
The mode operationally taking constant flow rate and constant backpressure sprays high-temperature gas.
6. burner as claimed in claim 1 or 2, it is characterised in that described at least two burner
Operationally take timesharing subregion Combustion System.
7. burner as claimed in claim 1 or 2, it is characterised in that described burner (100,101,
102) combustor and puff prot (101a), wherein, the internal diameter of described puff prot (101a) are at least included
Less than the internal diameter of described combustor, the outlet edge of described puff prot (101a) at least with taper furnace wall (202)
Flush, at least side outer wall of described puff prot (101a) and the tangent setting of described taper furnace wall (202),
The outlet edge of described puff prot (101a) is arcuate structure, its radian and described taper furnace wall (202)
Partial arcs is consistent.
8. burner as claimed in claim 7, it is characterised in that described burner (100,101,
102) central axis and the perpendicular setting of central axis of fluidized reaction stove (104), or
The central axis of described burner (100,101,102) and the central shaft of fluidized reaction stove (104)
Line setting at an acute angle.
9. burner as claimed in claim 7, it is characterised in that described combustor uses refractory material
Being prepared from, the mid portion of wherein said combustor introduces natural gas, and outside introduces the mode of air and makes sky
So gas generates uniform high temperature air-flow with air mixed combustion.
10. a fluid bed, it is characterised in that the gas stream of described fluid bed is by claim 1 to 9
The spiral vortex type gas stream that described burner is formed, wherein said burner is arranged in fluid bed bottom also
Including at least two burner, described burner includes taper furnace wall (202), described taper furnace wall (202)
Cone bus or its extended line converge at the bottom of described burner, and described at least two burner
Puff prot on furnace wall is that the extended line according to each burner central axis is the most straight with the puff prot of another burner
Connect the mode met to be opened on taper furnace wall, wherein, the puff prot of described at least two burner be according to
Following manner is formed: the high-temperature gas ejected through described at least two burner when burning is approximately along tangentially
Meet with described taper furnace wall (202) so that formed circumferentially through counter the pushing away of described taper furnace wall (202)
Shunting and shunting axially upward.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610242301.4A CN105921081B (en) | 2016-04-15 | 2016-04-15 | A kind of burner for fluidized bed and the fluidized bed equipped with the burner |
| CN201810713633.5A CN108970553B (en) | 2016-04-15 | 2016-04-15 | Fluidized bed |
| CN201810713613.8A CN109126642B (en) | 2016-04-15 | 2016-04-15 | Combustion method for fluidized bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610242301.4A CN105921081B (en) | 2016-04-15 | 2016-04-15 | A kind of burner for fluidized bed and the fluidized bed equipped with the burner |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
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| CN201610242301.4A Active CN105921081B (en) | 2016-04-15 | 2016-04-15 | A kind of burner for fluidized bed and the fluidized bed equipped with the burner |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109126642A (en) | 2019-01-04 |
| CN108970553B (en) | 2021-09-21 |
| CN109126642B (en) | 2021-09-21 |
| CN105921081B (en) | 2019-01-15 |
| CN108970553A (en) | 2018-12-11 |
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