CN209279151U - Fluidised form balanced recycle fluidized-bed combustion boiler for sludge and water-coal-slurry coupling combustion - Google Patents
Fluidised form balanced recycle fluidized-bed combustion boiler for sludge and water-coal-slurry coupling combustion Download PDFInfo
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- CN209279151U CN209279151U CN201822246083.9U CN201822246083U CN209279151U CN 209279151 U CN209279151 U CN 209279151U CN 201822246083 U CN201822246083 U CN 201822246083U CN 209279151 U CN209279151 U CN 209279151U
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Abstract
The utility model discloses a kind of fluidised form balanced recycle fluidized-bed combustion boilers for sludge and water-coal-slurry coupling combustion, bottom is provided with the burner hearth of fluidized bed combustion room and water-coal-slurry for sowing from water-coal-slurry to the fluidized bed combustion room sows device, it further include that sludge for sowing from sludge to the fluidized bed combustion room sows device, the unit time that the sludge sows device sows the unit time that quality sows device no more than the water-coal-slurry and sows the 50% of quality.In the fluidised form balanced recycle fluidized-bed combustion boiler, burning disposal has been carried out to sludge by fluidized bed combustion room, and has been that water-coal-slurry is combined to burn, so the requirement for sludge is relatively low, and combustion efficiency is good, burns at low cost.And enter the indoor sludge of fluidized bed combustion there are certain proportionate relationships with cement slurry, effectively to guarantee combustion efficiency.In conclusion the fluidised form balanced recycle fluidized-bed combustion boiler can efficiently solve the bigger problem of sludge incineration processing cost.
Description
Technical field
The utility model relates to combustion furnace technical fields, couple for sludge with water-coal-slurry more specifically to one kind
The fluidised form balanced recycle fluidized-bed combustion boiler of burning.
Background technique
With the large-scale development of urbanization, sewage load sharp increase, although town sewage is effectively addressed,
A large amount of sludge are generated after processing there is no effective processing method.It is domestic that the processing method of city sludge is substantially filled at present,
But landfill disposal generates secondary pollution, pollutes to underground water source；Another processing method is burnt after desiccation as fuel
It burns, or sludge and coal multifuel combustion to a certain degree after desiccation, but desiccation needs to consume energy, and secondary dirt can be also generated in drying process
Dye, polluted surface soil.
It by searching document data, is mixed and burned about sludge water-coal-slurry, similar research direction has:
One, slurrying or sludge and water-coal-slurry with certain proportion directly premix after-combustion after sludge and coal dust premix, this two
Kind mode is at high cost, and especially the former needs sludge drying or a degree of desiccation, and desiccation needs to consume energy and drying process
In can generate secondary pollution；
Two, sludge directly mixes burning in fire coal circulating fluid bed, although which sludge directly enters furnace, coal-burning boiler
Because environmental requirement is restricted.
Three, water-coal-slurry and sludge premix, Chinese patent " water-coal-slurry and sludge steam boiler capable of burning mixture " (number of patent application:
200920352570.1), although specifying sludge in this in patent without drying, its mode of movement is to give through belt feeder
Material, and shares a feed inlet with quartz sand, therefore can analyze out, and although sludge used has indicated undried, but it contains
Water has to be lower than 50%, has very big difference with most of untreated municipal sludge, cannot cost-effectively handle a large amount of
Municipal sludge.
It is current this field in conclusion how to efficiently solve the relatively high problem of municipal sludge burning disposal cost
Technical staff's urgent problem.
Utility model content
In view of this, being put down the purpose of this utility model is to provide a kind of for the fluidised form of sludge and water-coal-slurry coupling combustion
Weigh circulating fluidized bed boiler, which can efficiently solve municipal sludge burning disposal cost ratio
Higher problem.
In order to achieve the above object, the utility model provides the following technical solutions:
A kind of fluidised form balanced recycle fluidized-bed combustion boiler for sludge and water-coal-slurry coupling combustion, including bottom are provided with stream
The burner hearth and water-coal-slurry for sowing from water-coal-slurry to the fluidized bed combustion room for changing combustion chamber sow device, further include for institute
It states fluidized bed combustion room and sows the sludge of sludge and sow device, so as to enter the indoor sludge of the fluidized bed combustion in the unit time
Quality, which is no more than, enters the 50% of the indoor water-coal-slurry quality of the fluidized bed combustion.
In the fluidised form balanced recycle fluidized-bed combustion boiler for being used for sludge and water-coal-slurry coupling combustion, in use, respectively
Sow device to sludge and persistently feed sludge and sow device to water-coal-slurry and persistently feed water-coal-slurry, sludge and water coal slurry continue into
Enter into burner hearth, can enter in fluidized bed combustion room simultaneously and burn.In the fluidised form balanced recycle fluidized-bed combustion boiler, pass through stream
Change combustion chamber and burning disposal has been carried out to sludge, and is that water-coal-slurry is combined to burn, so the requirement for sludge is relatively low,
And combustion efficiency is good, burns at low cost.And it enters the indoor sludge of fluidized bed combustion and cement slurry there are certain ratio passes
System, effectively to guarantee combustion efficiency.In conclusion the fluidised form balanced recycle fluidized-bed combustion boiler can efficiently solve sludge and burn
Burn the bigger problem of processing cost.
Preferably, it is to enter the fluidized bed combustion that the indoor sludge quality of the fluidized bed combustion is entered in the unit time
The 10% to 45% of indoor water-coal-slurry quality.
Preferably, multiple sludge are sowed device and are arranged on fluidized bed combustion room top, and multiple water-coal-slurry
Device is sowed to be arranged on fluidized bed combustion room top.
Preferably, the sludge that the sludge sows that device is sowed can sow device with water-coal-slurry described at least one and sow
Water-coal-slurry intersect before falling into the fluidized bed combustion room mixing.
Preferably, at least one described sludge sows device with water-coal-slurry described at least one to sow device setting up and down.
Preferably, in the side of the burner hearth: one of them described sludge sows device and a water-coal-slurry is sowed
The high settings such as device are in upside, and sludge described in another one sows device and another described water-coal-slurry sows that device is contour to be set
Set in downside, wherein be located at upside the water-coal-slurry sow device be located at downside the sludge sow device surface, position
The sludge in upside, which sows device and is located at the water-coal-slurry of downside, to be sowed right above device, in the rectangle point stood up
Cloth.
Preferably, in the side of the burner hearth: etc. the sludge of high settings sow device and the water-coal-slurry sows dress
Spacing between setting is between 200 millimeters to 2000 millimeters.
Preferably, in the side of the burner hearth: etc. the sludge of high settings sow device and the water-coal-slurry sows dress
Set opposite tilt setting.
Preferably, including efficient cyclone and flue, the flue from top to bottom set gradually economizer and air preheat
Device, the efficient cyclone are connected to the upper outlet of the burner hearth, the central upper portion Exported Cone connection of the efficient cyclone
It is connected in the lower part of the flue, the efficient cyclone with returning charge valve, the returning charge valve feeds back channel connection by separation
In the fluidized bed combustion room.
Preferably, the efficient cyclone is high-temperature heat insulation cyclone separator, and the returning charge valve is balance returning charge valve.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of fluidised form balanced recycle fluidized-bed combustion boiler provided by the embodiment of the utility model.
It is marked in attached drawing as follows:
Device 2 is sowed in fluidized bed combustion room 1, sludge, water-coal-slurry sows device 3, burner hearth 4, flue 5, economizer 6, efficiently divides
From device 7, returning charge valve 8, air preheater 9.
Specific embodiment
The utility model embodiment discloses a kind of for the fluidised form balanced recycle of sludge and water-coal-slurry coupling combustion fluidisation
Bed boiler, to efficiently solve the relatively high problem of municipal sludge processing cost.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, Fig. 1 is provided by the embodiment of the utility model flat for the fluidised form of sludge and water-coal-slurry coupling combustion
The structural schematic diagram for the circulating fluidized bed boiler that weighs.
In a specific embodiment, it present embodiments provides a kind of flat for the fluidised form of sludge and water-coal-slurry coupling combustion
Weigh circulating fluidized bed boiler, specifically, the fluidised form balanced recycle fluidized-bed combustion boiler includes that burner hearth 4, water-coal-slurry sow device 3 and dirt
Mud sows device 2, and certain fluidised form balanced recycle fluidized-bed combustion boiler generally further includes other structures, such as economizer 6, air preheat
Device 9 and flue 5 etc..Wherein the bottom of burner hearth 4 is provided with fluidized bed combustion room 1, which is otherwise known as fluidized bed combustion
Room.
Wherein water-coal-slurry sows device 3 for sowing water-coal-slurry to fluidized bed combustion room 1, so that water-coal-slurry enters fluidisation
It burns in combustion chamber 1.Specifically how water-coal-slurry is sowed, state can be sowed with reference to sow device in the prior art.
Wherein water-coal-slurry sows device 3 and is communicated with slurry supply pump, to continue to sow the infeed water-coal-slurry of device 3 to water-coal-slurry by slurry supply pump.
Wherein water-coal-slurry sows the top that fluidized bed combustion room 1 is arranged in device 3, generally in suspended state, to broadcast into fluidized bed combustion room 1
Watering coal slurry, is generally sowed in umbellate form state.
Wherein sludge slurry sows device 2 for sowing sludge to fluidized bed combustion room 1, so that sludge enters fluidized bed combustion
It burns in room 1.Specifically how sludge is sowed, mode can be sowed with reference to sow device in the prior art.It is wherein dirty
Mud sows device 2 and is communicated with sludge pump, to continue to sow the infeed sludge of device 2 to sludge by sludge pump.Wherein sludge is sowed
The top of fluidized bed combustion room 1 is arranged in device 2, generally in suspended state, to sow sludge into fluidized bed combustion room 1, generally in
Umbellate form state is sowed.It should be noted that the structure that wherein sludge sows device 2 can sow the knot of device 3 with reference to water-coal-slurry
Structure, structure can be identical, can also be accordingly arranged according to respective needs.
It should be noted that wherein can be set, multiple sludge sow device 2 and multiple water-coal-slurry sow device 3, certainly
One can also be respectively arranged, specifically can according to need and be configured.But it is indoor that fluidized bed combustion is entered in the unit time
Sludge quality, which is no more than, enters the 50% of the indoor water-coal-slurry quality of fluidized bed combustion, and wherein quality can be showed by weight,
Above-mentioned sludge and water-coal-slurry should in general, i.e., ought have that multiple sludge sow device 2 and multiple water-coal-slurry are sowed
Device 3, above-mentioned sludge quality should be the sludge qualities that all sludge sow that device 2 is sowed, and above-mentioned water-coal-slurry quality should be
All water-coal-slurry sow the water-coal-slurry quality that device 3 is sowed.To pass through the mass ratio of control sludge, effectively to guarantee sludge
Burning, and then avoid internal-combustion insufficient.It should be noted that in order to preferably guarantee to burn, and preferably guarantee dirty
Mud treating capacity, the sludge quality entered in fluidized bed combustion room 1 in the unit time are the water-coal-slurry entered in fluidized bed combustion room 1
The 10% to 45% of quality.
It should be noted that the sludge unit time how measured into fluidized bed combustion room 1 sows quality and water-coal-slurry
Unit time sows quality, and there are mainly two types of modes: one is in order to guarantee to sow uniformly, wherein sludge is sowed device and is sowed
Sludge speed and water-coal-slurry out sow the water-coal-slurry speed that device is sowed be it is identical, with guarantee both even drop down enter to
It, can be according to the cross-sectional area ratio of draft tube, and respectively so the two unit time sows quality in fluidized bed combustion room 1
Density ratio obtain；Another kind, sludge therein sows device and water-coal-slurry sows device and is respectively connected with the pump housing, so respectively
The pump housing operating power ratio, can reflect that the unit time sows mass ratio.
In the present embodiment, in the fluidised form balanced recycle fluidized-bed combustion boiler, in use, sowing device to sludge respectively
It persistently feeds sludge and sows device to water-coal-slurry and persistently feed water-coal-slurry, sludge and water coal slurry continues into burner hearth 4, meeting
Enter in fluidized bed combustion room 1 simultaneously and burns.It is right by fluidized bed combustion room 1 in the fluidised form balanced recycle fluidized-bed combustion boiler
Sludge has carried out burning disposal, and is that water-coal-slurry is combined to burn, so the requirement for sludge is relatively low, and combustion efficiency
It is good, it burns at low cost.And enter the sludge in fluidized bed combustion room 1 there are certain proportionate relationships with cement slurry, with effective
Ground guarantees combustion efficiency.In conclusion the fluidised form balanced recycle fluidized-bed combustion boiler can efficiently solve sludge incineration and be processed into
This bigger problem.
It should be noted that generally there is the fluidised form balanced recycle fluidized-bed combustion boiler at least one sludge to sow device 2, with
And at least one water-coal-slurry sows device 3, and multiple sludge can also be arranged certainly and sow device 2, similarly can be set multiple
Water-coal-slurry sows device 3.
Further, in order to sow internal sludge and water-coal-slurry uniformly, and it is wide to sow range, herein preferably, more
A sludge sows the setting of device 2 on 1 top of fluidized bed combustion room, and multiple water-coal-slurry are sowed device 2 and are arranged in the fluidized bed combustion
1 top of room.
Further, in order to preferably burn, herein preferred sludge sow sludge that device 2 is sowed can at least
One water-coal-slurry sows the water-coal-slurry that device 3 is sowed, and intersect mixing before falling into fluidized bed combustion room 1.Intersection mixing herein
It is not required for the mixing that intersects completely, can partially intersect mixing.With guarantee water-coal-slurry and sludge before being burnt, it is advanced
Row mixing, to guarantee after burning effect.
Specifically how to guarantee that water-coal-slurry sows the water-coal-slurry that device 3 is sowed out and sows device 2 with corresponding sludge to broadcast
Spill the sludge mixing come, sludge can be made to sow device 2 and sow device 3 with corresponding water-coal-slurry and close on setting, such as described
The side of burner hearth: etc. the sludge of high settings sow device 2 and water-coal-slurry sows spacing between device 3 at 200 millimeters to 2000
Between millimeter.Can also be so that at least one sludge is sowed device 2 and at least one water-coal-slurry to sow device 3 setting up and down, with
Mix the water-coal-slurry for sowing out before falling into fluidized bed combustion room 1 with the sludge for sowing out.
Specifically, herein preferably, in the side of burner hearth: one of sludge sows device 2 and one in order to preferably mix
A water-coal-slurry sows the high settings such as device 3 in upside, and another one sludge sows device 2 and another water-coal-slurry sows device
The high settings such as 3 are in downside, wherein the water-coal-slurry for being located at upside sows device 3 and is located at the sludge of downside and sows the surface of device 2, position
Sludge in upside, which sows device 2 and is located at the water-coal-slurry of downside, to be sowed right above device 3, in the distributed rectangular stood up, so that
More sufficient mixing each other.It should be noted that considering that the cross section of burner hearth 4 is bigger, it is based on this, herein preferred furnace
The left and right sides of thorax 4 is provided with that sludge sows device 2 and water-coal-slurry sows device 4, and opposite sides can do identical setting.
Further, in order to make, the sludge closed on sows device 2 and water-coal-slurry sows the sludge and water-coal-slurry that device 3 sprays
Mixed effect is preferable, herein preferably, in the side of burner hearth: wherein etc. the sludge of high settings sows device 2 and water-coal-slurry sows dress
Set the setting of 3 opposite tilts.
As described above, in order to preferably carry out fluidized bed combustion, efficient cyclone 7 and flue 5 are preferably included herein,
Middle flue 5 from top to bottom sets gradually economizer 6 and air preheater 9, and wherein efficient cyclone 7 is connected to the top of burner hearth 4
Outlet, the central upper portion Exported Cone of the efficient cyclone 7 are connected to flue 5, the lower part of the efficient cyclone 7 and returning charge valve
8 are connected, and returning charge valve 8 feeds back channel by separation and is connected to fluidized bed combustion room 1.Specifically, wherein efficient cyclone 7 is preferably
High-temperature heat insulation cyclone separator, and wherein returning charge valve 8 is balance returning charge valve.Efficient high-temperature heat insulation cyclone separator is used simultaneously
With self-balancing returning charge valve, isolated efficiency is higher and classification incising control significantly subtracts compared with compared to regular circulation fluidized-bed combustion boiler
It is small, goods fluid state self-balancing can be realized in the thin bed of material, sunken bed pressure operation.The high-temperature heat insulation cyclone separator can capture
Uncombusted carbon particle returns to 4 second-time burning of burner hearth, is able to solve since residual carbon content is high in low-temperature burning bring flying dust
There is problem desulfuration in furnace to drop nitrogen characteristic, can be realized the discharge of low pollution object, it is ensured that the efficient burning of coal water slurry fuel.
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.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (10)
1. a kind of fluidised form balanced recycle fluidized-bed combustion boiler for sludge and water-coal-slurry coupling combustion, including bottom are provided with fluidisation
The burner hearth of combustion chamber and water-coal-slurry for sowing from water-coal-slurry to the fluidized bed combustion room sow device, which is characterized in that also wrap
It includes the sludge for sowing sludge to the fluidized bed combustion room and sows device, so as to enter the fluidized bed combustion in the unit time
Indoor sludge quality, which is no more than, enters the 50% of the indoor water-coal-slurry quality of the fluidized bed combustion.
2. the fluidised form balanced recycle fluidized-bed combustion boiler according to claim 1 for sludge and water-coal-slurry coupling combustion,
It is characterized in that, it is indoor to enter the fluidized bed combustion that the indoor sludge quality of the fluidized bed combustion is entered in the unit time
The 10% to 45% of water-coal-slurry quality.
3. the fluidised form balanced recycle fluidized-bed combustion boiler according to claim 1 for sludge and water-coal-slurry coupling combustion,
It is characterized in that, multiple sludge are sowed device and are arranged on fluidized bed combustion room top, and multiple water-coal-slurry sow dress
It installs on fluidized bed combustion room top.
4. the fluidised form balanced recycle fluidized-bed combustion boiler according to claim 3 for sludge and water-coal-slurry coupling combustion,
It is characterized in that, the sludge sows the sludge that device is sowed can sow the water coal that device is sowed with water-coal-slurry described at least one
Starch the mixing that intersects before falling into the fluidized bed combustion room.
5. the fluidised form balanced recycle fluidized-bed combustion boiler according to claim 4 for sludge and water-coal-slurry coupling combustion,
It is characterized in that, at least one described sludge sows device, and with water-coal-slurry described at least one to sow device setting up and down.
6. the fluidised form balanced recycle fluidized-bed combustion boiler according to claim 5 for sludge and water-coal-slurry coupling combustion,
It is characterized in that, in the side of the burner hearth: one of them described sludge sows device and a water-coal-slurry sows device etc.
High setting is in upside, and sludge described in another one sows device and another described water-coal-slurry sows the high settings such as device under
Side, wherein the water-coal-slurry for being located at upside sows device and is located at the sludge of downside and sows right above device, positioned at upside
The sludge sow device and be located at the water-coal-slurry of downside and sow right above device, in the distributed rectangular stood up.
7. the fluidised form balanced recycle fluidized-bed combustion boiler according to claim 6 for sludge and water-coal-slurry coupling combustion,
Be characterized in that, in the side of the burner hearth: etc. the sludge of high settings sow device and the water-coal-slurry is sowed between device
Spacing between 200 millimeters to 2000 millimeters.
8. the fluidised form balanced recycle fluidized-bed combustion boiler according to claim 7 for sludge and water-coal-slurry coupling combustion,
Be characterized in that, in the side of the burner hearth: etc. the sludge of high settings sow device with the water-coal-slurry to sow device opposite
It is obliquely installed.
9. the fluidised form balanced recycle fluidized bed according to claim 1-8 for sludge and water-coal-slurry coupling combustion
Boiler, which is characterized in that including efficient cyclone and flue, the flue from top to bottom sets gradually economizer and air preheat
Device, the efficient cyclone are connected to the upper outlet of the burner hearth, the central upper portion Exported Cone connection of the efficient cyclone
It is connected in the lower part of the flue, the efficient cyclone with returning charge valve, the returning charge valve feeds back channel connection by separation
In the fluidized bed combustion room.
10. the fluidised form balanced recycle fluidized-bed combustion boiler according to claim 9 for sludge and water-coal-slurry coupling combustion,
It is characterized in that, the efficient cyclone is high-temperature heat insulation cyclone separator, and the returning charge valve is balance returning charge valve.
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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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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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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