CN109059263A - Fluidised form balances the ciculation fluidized burning hot-water boiler of water-coal-slurry and its combustion method - Google Patents
Fluidised form balances the ciculation fluidized burning hot-water boiler of water-coal-slurry and its combustion method Download PDFInfo
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- CN109059263A CN109059263A CN201811149869.7A CN201811149869A CN109059263A CN 109059263 A CN109059263 A CN 109059263A CN 201811149869 A CN201811149869 A CN 201811149869A CN 109059263 A CN109059263 A CN 109059263A
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- Prior art keywords
- water
- slurry
- coal
- burner hearth
- secondary air
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
- F23C10/04—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone
- F23C10/08—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases
- F23C10/10—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases the separation apparatus being located outside the combustion chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1845—Arrangement or mounting of combustion heating means, e.g. grates or burners using solid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2206/00—Fluidised bed combustion
- F23C2206/10—Circulating fluidised bed
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention discloses a kind of fluidised forms to balance the ciculation fluidized burning hot-water boiler of water-coal-slurry, including burner hearth, high-temperature heat insulation cyclone separator and flue；Flue from top to bottom sets gradually economizer and air preheater；The bottom of burner hearth is equipped with fluidized bed combustion chamber；It is equipped with water-coal-slurry sowing device in the side wall of burner hearth to take over, water-coal-slurry sowing device adapter tube is connected to slurry supply pump and water-coal-slurry seeding device；Middle part is equipped with media bed material adapter tube and desulfurizing agent inlet connection in the front wall of burner hearth, and media bed material adapter tube and desulfurizing agent inlet connection are connected with fluidized bed combustion chamber；High-temperature heat insulation cyclone separator is connected to the upper outlet of burner hearth, and the central upper portion Exported Cone of high-temperature heat insulation cyclone separator is connected to flue and lower part is connect with self-balancing returning charge valve, and self-balancing returning charge valve feeds back channel by separation and is connected to fluidized bed combustion chamber.The boiler uses ciculation fluidized state self-balancing technology, it can be achieved that low pollution object discharges.The invention also discloses a kind of combustion methods using above-mentioned boiler.
Description
Technical field
The present invention relates to boiler technology field, in particular to a kind of fluidised form balances the ciculation fluidized burning water bath of water-coal-slurry
Furnace.Moreover, it relates to a kind of combustion method using the ciculation fluidized burning hot-water boiler of above-mentioned fluidised form balance water-coal-slurry.
Background technique
Water-coal-slurry hot-water boiler is a kind of boiler being with a wide range of applications.However, current water-coal-slurry water bath
In furnace, unburned material is more in burner hearth, may be directly entered in flue with flue gas, and the pollutant of discharge is more.
Therefore, how a kind of hot-water boiler of low pollution object discharge is provided, is that those skilled in the art need to solve at present
The technical issues of.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of fluidised forms to balance the ciculation fluidized burning hot-water boiler of water-coal-slurry, energy
It enough realizes the discharge of low pollution object, and realizes goods fluid state self-balancing, the characteristic with desulfuration in furnace drop nitrogen.Of the invention is another
One purpose is to provide a kind of combustion method using above-mentioned boiler, and delivery wind effect is good, high combustion efficiency, can be realized low pollution
Object discharge, and it is able to achieve goods fluid state self-balancing, and the characteristic with desulfuration in furnace drop nitrogen.
To achieve the above object, the invention provides the following technical scheme:
A kind of fluidised form balances the ciculation fluidized burning hot-water boiler of water-coal-slurry, including burner hearth, high-temperature heat insulation cyclone separator and
Flue；The flue from top to bottom sets gradually economizer and air preheater；The bottom of the burner hearth is equipped with fluidized bed combustion
Room is equipped with water-coal-slurry sowing device in the side wall of the burner hearth and takes over, and the water-coal-slurry sowing device adapter tube is connected to slurry supply pump and water
Coal slurry seeding device；Middle part is equipped with media bed material adapter tube and desulfurizing agent inlet connection, and the media bed in the front wall of the burner hearth
Material adapter tube and the desulfurizing agent inlet connection are connected with the fluidized bed combustion chamber；The high-temperature heat insulation cyclone separator connects
It is connected to the upper outlet of the burner hearth, the central upper portion Exported Cone of the high-temperature heat insulation cyclone separator is connected to the flue,
The lower part of the high-temperature heat insulation cyclone separator is connected with self-balancing returning charge valve, and the self-balancing returning charge valve is fed back by separation
Channel is connected to the fluidized bed combustion chamber.
Preferably, the lower section of the fluidized bed combustion chamber is equipped with an air compartment, and the side wall of the burner hearth is equipped with Secondary Air
Pipe, the outlet of the secondary air channel is oval and the secondary air channel is in the double-deck setting, the Secondary Air in the height direction
Pipe is connected to secondary air fan.
Preferably, fluidized bed combustion chamber bottom bed surface and the difference in height range of the outlet of secondary air channel described in upper layer are
3m to 4m.
Preferably, the heating surface of the economizer is in horizontally disposed.
Preferably, the air preheater is tubulation regenerative air heater.
A kind of combustion method of the ciculation fluidized burning hot-water boiler of fluidised form balance water-coal-slurry, applied to stream as described above
State balances the ciculation fluidized burning hot-water boiler of water-coal-slurry characterized by comprising
Desulfurizing agent, media bed material and water-coal-slurry is sent into the burner hearth to burn；
It blows into the burner hearth, wherein the two of First air and secondary air channel offer that an air compartment provides
The proportional region of secondary wind is 4:6 to 5:5.
Preferably, it is lime stone of 50 mesh to 100 mesh that the desulfurizing agent, which is average grain diameter, and the media bed material is that partial size is
The inertia media material of 1mm to 3mm, the average particle size of the water-coal-slurry are 50 mesh to 100 mesh.
Preferably, the temperature range in the burner hearth and the fluidized bed combustion room is 830 DEG C to 890 DEG C.
Fluidised form provided by the invention balances the ciculation fluidized burning hot-water boiler of water-coal-slurry, including burner hearth, high-temperature heat insulation whirlwind
Separator and flue；Flue from top to bottom sets gradually economizer and air preheater；The bottom of burner hearth is equipped with fluidized bed combustion
Room is equipped with water-coal-slurry sowing device in the side wall of burner hearth and takes over, and water-coal-slurry sowing device adapter tube is connected to slurry supply pump and sows with water-coal-slurry
Device；Middle part is equipped with media bed material adapter tube and desulfurizing agent inlet connection in the front wall of burner hearth, and media bed material adapter tube and desulfurizing agent enter
Mouth adapter tube is connected with fluidized bed combustion chamber；High-temperature heat insulation cyclone separator is connected to the upper outlet of burner hearth, high-temperature heat insulation
The central upper portion Exported Cone of cyclone separator is connected to flue, lower part and the self-balancing returning charge valve phase of high-temperature heat insulation cyclone separator
Connection, self-balancing returning charge valve feed back channel by separation and are connected to fluidized bed combustion chamber.
The fluidised form balances in the ciculation fluidized burning hot-water boiler of water-coal-slurry, uses ciculation fluidized state self-balancing technology,
Simultaneously use efficient high-temperature heat insulation cyclone separator and self-balancing returning charge valve, isolated efficiency it is higher and classification incising control compared with
Significantly reduce compared to regular circulation fluidized-bed combustion boiler, goods fluid state can be realized certainly in the thin bed of material, sunken bed pressure operation
Balance.Meanwhile the high-temperature heat insulation cyclone separator can capture uncombusted carbon particle and return to burner hearth second-time burning, be able to solve
Due to the high problem of residual carbon content in low-temperature burning bring flying dust, there is desulfuration in furnace to drop nitrogen characteristic, can be realized low pollution
Object discharge, it is ensured that the efficient burning of coal water slurry fuel.Meanwhile it taking over and taking off by water-coal-slurry seeding device, media bed material
Sulphur agent inlet connection is fed into burner hearth respectively, can be guaranteed that coal water slurry fuel and media material balance enter burner hearth, is used in
The various fuel of burning can timely enter in burner hearth.
Combustion method provided by the invention using above-mentioned boiler, delivery wind effect is good, high combustion efficiency, can be realized low
Pollutant emission, and it is able to achieve goods fluid state self-balancing, and the characteristic with desulfuration in furnace drop nitrogen.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structural schematic diagram that fluidised form provided by the present invention balances the ciculation fluidized burning hot-water boiler of water-coal-slurry.
In figure: 1- vomit pipe, air compartment of 2-, 3- fluidized bed combustion chamber, 4- media bed material adapter tube, 5- desulfurizing agent entrance connect
Pipe, 6- secondary air channel, 7- water-coal-slurry sowing device adapter tube, 8- burner hearth, 9- high-temperature heat insulation cyclone separator, 10- flue, 11- save coal
Device, 12- air preheater, 13- self-balancing returning charge valve.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Core of the invention is to provide a kind of fluidised form balance ciculation fluidized burning hot-water boiler of water-coal-slurry, can be realized low dirt
Object discharge is contaminated, and realizes goods fluid state self-balancing, the characteristic with desulfuration in furnace drop nitrogen.Another core of the invention is to mention
For a kind of combustion method using above-mentioned boiler, delivery wind effect is good, high combustion efficiency, can be realized the discharge of low pollution object, and
Realize goods fluid state self-balancing, the characteristic with desulfuration in furnace drop nitrogen.
Referring to FIG. 1, the structure that Fig. 1 is the ciculation fluidized burning hot-water boiler of fluidised form provided by the present invention balance water-coal-slurry is shown
It is intended to.
In a kind of specific embodiment of hot-water boiler provided by the present invention, including burner hearth 8, high-temperature heat insulation cyclone separator 9
With flue 10.
Wherein, flue 10 from top to bottom sets gradually economizer 11 and air preheater 12.The bottom of burner hearth 8 is equipped with fluidisation
Bed combustor 3.In addition, being equipped with water-coal-slurry sowing device adapter tube 7 in the side wall of burner hearth 8, water-coal-slurry sowing device adapter tube 7 is connected to for slurry
Pump and water-coal-slurry seeding device, to provide water-coal-slurry to fluidized bed combustion chamber 3, water-coal-slurry can be sowed by slurry supply pump and water-coal-slurry
Device equably sows 3 bottom of fluidized bed combustion chamber.Optionally, the nozzle of water-coal-slurry sowing device adapter tube 7 is apart from fluidized bed combustion
The altitude range of 3 bottom bed surface of room can be 2m to 4m.Middle part can be equipped with media bed material adapter tube 4 and take off in the front wall of burner hearth 8
Sulphur agent inlet connection 5, and media bed material adapter tube 4 and desulfurizing agent inlet connection 5 are connected with fluidized bed combustion chamber 3, with to stream
The corresponding supply media bed material in fluidized bed combustion room 3 and desulfurizing agent, wherein desulfurizing agent inlet connection 5 provides desulfurizing agent, and media bed material connects
Pipe 4 provides media bed material.
It is fed respectively into burner hearth 8 by water-coal-slurry seeding device, media bed material adapter tube 4 and desulfurizing agent inlet connection 5, energy
Enough guarantee that coal water slurry fuel and media material balance enter burner hearth, the various fuel for being used in burning can timely enter burner hearth 8
It is interior.
High-temperature heat insulation cyclone separator 9 is connected to the upper outlet of burner hearth 8, in the top of high-temperature heat insulation cyclone separator 9
Heart Exported Cone is connected to flue 10, and the lower part of high-temperature heat insulation cyclone separator 9 is connected with self-balancing returning charge valve 13, and self-balancing is returned
Material valve 13 feeds back channel by separation and is connected to fluidized bed combustion chamber 3.
Ciculation fluidized state self-balancing technology is used in the present embodiment, while using efficient high-temperature heat insulation cyclonic separation
Device 9 and self-balancing returning charge valve 13, isolated efficiency are big compared with compared to regular circulation fluidized-bed combustion boiler compared with high and classification incising control
Amplitude reduces, and goods fluid state self-balancing can be realized in the thin bed of material, sunken bed pressure operation.Meanwhile high-temperature heat insulation whirlwind point
It can capture uncombusted carbon particle from device 9 and return to 8 second-time burning of burner hearth, be able to solve due in low-temperature burning bring flying dust
There is the high problem of residual carbon content desulfuration in furnace to drop nitrogen characteristic, can be realized the discharge of low pollution object, it is ensured that coal water slurry fuel
Efficient burning.
On the basis of the above embodiments, the lower section of fluidized bed combustion chamber 3 is equipped with an air compartment 2.Fluidized bed combustion chamber 3
Middle part can be equipped with vomit pipe 1 and one end of vomit pipe 1 extends to except an air compartment 2.The side wall of burner hearth 8 is equipped with Secondary Air
The outlet of pipe 6, secondary air channel 6 is oval and secondary air channel 6 is in the height direction in the double-deck setting, the outlet of secondary air channel 6
It is connected with fluidized bed combustion chamber 3 and burner hearth 8, secondary air channel 6 is connected to secondary air fan.Wherein, the quantity of secondary air channel 6 can be with
It is configured according to actual needs, for example, secondary air channel 6 can be respectively equipped on the opposite side wall of two of burner hearth 8, and each
On side wall, secondary air channel 6 is respectively provided with two layers in the height direction, meanwhile, the outlet of secondary air channel 6 specifically can be set in burner hearth
The middle-lower part of 8 side walls.
In the fluidised form balance ciculation fluidized burning hot-water boiler of water-coal-slurry, by media Matter Transfer combustion system, provide and deliver
Wind system, heat-exchange system cooperation are to produce hot water.Wherein, media Matter Transfer combustion system includes burner hearth 8；Delivery wind system packet
Primary air system and secondary air system are included, primary air system includes an air compartment 2, and secondary air system includes secondary air channel 6 and two
Secondary blower；Heat-exchange system includes membrane wall and flue 10 in burner hearth 8, and specifically, membrane wall can be water cooled membrane wall.
In the present embodiment, an air compartment 2 is set to the lower section of fluidized bed combustion chamber 3, and First air enters fluidisation from bottom to top
Bed combustor 3 makes material form fluidized state and water-coal-slurry is made to carry out anoxycausis.Secondary air channel 6 is passed through secondary to burner hearth 8
Wind, so that filling for cool water mixture burning can be improved in the formation oxygen-enriched combusting atmosphere of 8 top of burner hearth, the cooperation of First air and Secondary Air
Divide property, Secondary Air penetration power is strong, and delivery wind effect is preferable, simultaneously as the outlet of secondary air channel 6 is ellipse, air intake resistance
It is smaller, be conducive to the efficient burning of water-coal-slurry, and be conducive to the energy consumed needed for saving secondary air fan and entire boiler.
Optionally, economizer 11 can be horizontally disposed with air preheater 12.
Based on any of the above embodiments, 3 bottom bed surface of fluidized bed combustion chamber and the outlet of upper layer secondary air channel 6
Difference in height may range from 3m to 4m, for example, can be 3m, 3.5m and 4m or other height values within the scope of this.
Based on any of the above embodiments, the heating surface of economizer 11 can be in horizontally disposed, be conducive to reduce cigarette
Atmidometer.
Based on any of the above embodiments, air preheater 12 can be shell and tube air preheater, such air
Good airproof performance, the heat transfer efficiency of preheater 12 are high and easily fabricated and process.
In addition to above-mentioned fluidised form balances the ciculation fluidized burning hot-water boiler of water-coal-slurry, the present invention also provides a kind of fluidised form balances
The combustion method of the ciculation fluidized burning hot-water boiler of water-coal-slurry, the combustion method can be applied in any of the above embodiment provide
Hot-water boiler.
Specifically, this method comprises:
Desulfurizing agent, media bed material and water-coal-slurry is sent into burner hearth 8 to burn；
It blows into burner hearth 8, wherein the ratio for the Secondary Air that the First air and secondary air channel 6 that an air compartment 2 provides provide
Range is 4:6 to 5:5, and optionally, the ratio of First air and Secondary Air can be in 4:6,5:6,5:5 or the proportional region
Other ratios.
In the present embodiment, by adjusting the ratio of First air, Secondary Air, it can be ensured that First air meets fluidized state and creates
Vulcanization combustion chamber anoxycausis environment is made, and ensures that Secondary Air meets 8 top oxygen-enriched combusting of burner hearth, makes the various flammable of water-coal-slurry
The abundant after-flame of composition burns, thus to greatest extent under oxygen-enriched combusting environment according to its sequencing in conjunction with oxygen
The generation for reducing fuel type NOx, can be effectively reduced the original concentration of nitrogen oxides in effluent.
On the basis of the above embodiments, it is lime stone of 50 mesh to 100 mesh, media bed that desulfurizing agent, which can be average grain diameter,
Material can be the inertia media material that partial size is 1mm to 3mm, and the average particle size of water-coal-slurry can be 50 mesh to 100 mesh.
It is efficiently separated in the present embodiment by reasonably setting fuel granularity gradation and desulfurizing agent Carbonate Particle Size, cooperation
Device, may be implemented goods fluid state self-balancing, combustion technology in rationalization's furnace, may be implemented water-coal-slurry efficient burning,
Desulfuration in furnace, drop nitre technology, can greatly reduce the original discharge concentration of SO2 and NOx pollutant in flue gas, can reduce to ring
The pollution in border.
On the basis of the above embodiments, the temperature range in burner hearth 8 and fluidized bed combustion chamber 3 can be 830 DEG C to 890
℃。
The present embodiment is designed using low furnace temperature, is based on fluidised form reconfiguration technique, when lime stone is as desulfurizing agent, 830 DEG C extremely
890 DEG C of 8 ignition temperature of burner hearth is that desulfuration in furnace creates optimal temperature environment, is aided with high-temperature heat insulation cyclone separator 9
Ability is efficiently separated, in appropriate calcium to sulphur mole ratio, it can be achieved that desulfurization degree is up to 95%.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Above to the fluidised form provided by the present invention ciculation fluidized burning hot-water boiler of balance water-coal-slurry and its combustion method into
It has gone and has been discussed in detail.Used herein a specific example illustrates the principle and implementation of the invention, the above implementation
The explanation of example is merely used to help understand method and its core concept of the invention.It should be pointed out that for the general of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for logical technical staff, this
A little improvement and modification are also fallen within the protection scope of the claims of the present invention.
Claims (8)
1. a kind of fluidised form balances the ciculation fluidized burning hot-water boiler of water-coal-slurry, which is characterized in that including burner hearth (8), high-temperature heat insulation
Cyclone separator (9) and flue (10)；The flue (10) from top to bottom sets gradually economizer (11) and air preheater
(12)；The bottom of the burner hearth (8) is equipped with fluidized bed combustion chamber (3)；Water-coal-slurry sowing device is equipped in the side wall of the burner hearth (8)
It takes over (7), the water-coal-slurry sowing device adapter tube (7) is connected to slurry supply pump and water-coal-slurry seeding device；In the front wall of the burner hearth (8)
Middle part is equipped with media bed material adapter tube (4) and desulfurizing agent inlet connection (5), and media bed material adapter tube (4) and the desulfurizing agent
Inlet connection (5) is connected with the fluidized bed combustion chamber (3)；The high-temperature heat insulation cyclone separator (9) is connected to described
The central upper portion Exported Cone of the upper outlet of burner hearth (8), the high-temperature heat insulation cyclone separator (9) is connected to the flue
(10), the lower part of the high-temperature heat insulation cyclone separator (9) is connected with self-balancing returning charge valve (13), the self-balancing returning charge valve
(13) channel is fed back by separation and is connected to the fluidized bed combustion chamber (3).
2. fluidised form according to claim 1 balances the ciculation fluidized burning hot-water boiler of water-coal-slurry, which is characterized in that the stream
The lower section of fluidized bed combustion room (3) is equipped with an air compartment (2), and the side wall of the burner hearth (8) is equipped with secondary air channel (6), and described two
The outlet of secondary air hose (6) is oval and the secondary air channel (6) is in the height direction in the double-deck setting, the secondary air channel
(6) it is connected to secondary air fan.
3. fluidised form according to claim 2 balances the ciculation fluidized burning hot-water boiler of water-coal-slurry, which is characterized in that the stream
The difference in height range of the outlet of secondary air channel (6) described in fluidized bed combustion room (3) bottom bed surface and upper layer is 3m to 4m.
4. fluidised form according to claim 1 balances the ciculation fluidized burning hot-water boiler of water-coal-slurry, which is characterized in that the province
The heating surface of coal device (11) is in horizontally disposed.
5. fluidised form according to claim 1 balances the ciculation fluidized burning hot-water boiler of water-coal-slurry, which is characterized in that the sky
Air preheater (12) is tubulation regenerative air heater.
6. a kind of combustion method of the ciculation fluidized burning hot-water boiler of fluidised form balance water-coal-slurry, it is any to be applied to claim 2 to 5
Fluidised form described in one balances the ciculation fluidized burning hot-water boiler of water-coal-slurry characterized by comprising
Desulfurizing agent, media bed material and water-coal-slurry is sent into the burner hearth (8) to burn；
The air-supply into the burner hearth (8), wherein the First air and the secondary air channel (6) that an air compartment (2) provides provide
Secondary Air proportional region be 4:6 to 5:5.
7. combustion method according to claim 6, which is characterized in that the desulfurizing agent is that average grain diameter is 50 mesh to 100
Purpose lime stone, the media bed material are the inertia media material that partial size is 1mm to 3mm, and the average particle size of the water-coal-slurry is
50 mesh to 100 mesh.
8. combustion method according to claim 7, which is characterized in that the burner hearth (8) and the fluidized bed combustion chamber (3)
Interior temperature range is 830 DEG C to 890 DEG C.
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| CN201811149869.7A CN109059263A (en) | 2018-09-29 | 2018-09-29 | Fluidised form balances the ciculation fluidized burning hot-water boiler of water-coal-slurry and its combustion method |
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| CN201811149869.7A CN109059263A (en) | 2018-09-29 | 2018-09-29 | Fluidised form balances the ciculation fluidized burning hot-water boiler of water-coal-slurry and its combustion method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404896A (en) * | 2018-12-28 | 2019-03-01 | 青岛特利尔环保股份有限公司 | Fluidised form balanced recycle fluidized-bed combustion boiler for sludge and water-coal-slurry coupling combustion |
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| CN109404896A (en) * | 2018-12-28 | 2019-03-01 | 青岛特利尔环保股份有限公司 | Fluidised form balanced recycle fluidized-bed combustion boiler for sludge and water-coal-slurry coupling combustion |
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