CN208546988U - A kind of sludge of sewage treatment plant burning facility - Google Patents
A kind of sludge of sewage treatment plant burning facility Download PDFInfo
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- CN208546988U CN208546988U CN201821052136.7U CN201821052136U CN208546988U CN 208546988 U CN208546988 U CN 208546988U CN 201821052136 U CN201821052136 U CN 201821052136U CN 208546988 U CN208546988 U CN 208546988U
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- furnace
- sludge
- boiling bed
- sewage treatment
- air inlet
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- 239000010802 sludge Substances 0.000 title claims abstract description 41
- 239000010865 sewage Substances 0.000 title claims abstract description 19
- 238000009835 boiling Methods 0.000 claims abstract description 52
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000002893 slag Substances 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000013517 stratification Methods 0.000 claims description 6
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 239000013590 bulk material Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000428 dust Substances 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 13
- 239000011257 shell material Substances 0.000 description 9
- 239000011819 refractory material Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 239000002956 ash Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000004503 fine granule Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Gasification And Melting Of Waste (AREA)
Abstract
The utility model belongs to sludge treatment device technical field, discloses a kind of sludge of sewage treatment plant burning facility, including furnace body, and upper of furnace body is equipped with bell, and lower part is equipped with furnace bottom；Furnace gas export is offered at the top of bell；Secondary wind inleting tube is equipped in the middle part of furnace body, middle and lower part is equipped with feed inlet, and slag notch is arranged at lower part；Furnace bottom bottom sides are equipped with an air inlet.Furnace body includes upper and lower two-stage cylindrical barrel and middle part rounding conic tube, and the furnace that bottom boiling bed, the middle part inverted cone cylinder of upper boiling bed, the formation of junior's cylinder that higher level's cylinder is formed are formed expands area.It is equipped between bottom boiling bed and furnace bottom and divides wind structure, including sub-air chamber, air inlet cap, enfeoffment layer.Bottom boiling bed, which is equipped with to boil, stablizes layer material, and bottom boiling bed interior furnace wall is equipped with heat exchanger.The beneficial effects of the utility model are: easy to operate, easy control of temperature, heat balance, avoid that burning is not thorough, the furnace that goes out, dioxin largely generate, and the amount of dust in furnace gas also greatly reduces.
Description
Technical field
The utility model relates to sludge treatment device technical fields, and in particular to a kind of burning of sludge of sewage treatment plant is set
It is standby.
Background technique
In recent years, universal and perfect with sewage treatment facility, wastewater treatment rate steps up, sewage treatment degree by
Step in-depth, there has also been biggish growths for sludge of sewage treatment plant yield.
The main method of general sludge treatment has: being formed with the fat process of machine, sanitary landfills process, incineration disposal method.
Heavy metal in sludge cannot be removed by being formed with the fat process of machine, and heavy metal may be introduced into the planting industry of food chain.Health
Landfill stabilization method is domestic in recent years also gradually to limit sludge sanitary landfills since increased costs and landfill yard have stink.It burns
Burning process is a kind of more effective waste reduction processing technique, is answered extensively in developed country and domestic southern area at present
With.
Equipment used by sludge incineration mainly uses three kinds i.e. vertical multi-sectional furnace, rotary kiln and fluidized bed furnace.Currently, fluidized bed furnace
Incineration technology is the most common technique using sludge heat energy, and incineration temperature is usually 800~900 DEG C, is wanted suitable for high throughput
It asks.It is advantageous that large area burning, strong turbulence intensity and longer residence time.But it there are still some drawbacks:
Sludge through desiccation is generally bulk, into fluidized bed furnace after material compacting degree it is uneven, will cause gas stream in the stove and be unevenly distributed,
Cause to burn incomplete.Become fine powder after material is heated simultaneously and burning, so that occurring lower layer's material accumulation and upper in furnace
The polarization phenomenon that layer material is flown upward.In-furnace temperature distribution is difficult to maintain design temperature, is easy the furnace that goes out, and clinker is easy
Hardened and coking, ash discharge are inconvenient.Dust content is high in the outlet furnace gas of existing fluidized bed furnace, causes subsequent purification dedusting task numerous
Weight.Environment pollution control effect is poor, and design requirement is not achieved in the generation and control of dioxin in furnace gas, and subsequent dioxin removes difficult
Degree is big.
China has authorized utility model patent CN204301088U, a kind of chemical engineering sludge incinerator, the apparatus main body knot
Structure to it is lower and on successively formed by equal bellows, for placing bed material layer, boiling bed, the burner hearth of filler；Bed material layer bottom is equipped with wind
Cap, boiling bed bottom are equipped with feed opening and slag-drip opening for adding sludge and coal cinder mixture；The lower side of burner hearth is equipped with
Lead to the coal filling hole of boiling bed, the upper side of burner hearth is equipped with exhaust outlet.It is different from the utility model.
China has authorized utility model patent CN202852834U, a kind of sludge incineration device, including refractory material shell,
Sludge import, batcher, air intlet, blanking bed, air distribution pipe, slag-drip opening, auxiliary burner import, start-up burner,
Exhanst gas outlet, combustion-supporting fan, overfiren air port；Position below the mid-height of refractory material shell is equipped with sludge blanking bed and burns
Bed, sludge blanking bed lower part are that air distribution pipe, the air intlet being located on refractory material shell and combustion-supporting fan pass through pipeline
Air distribution pipe, sludge import and batcher are connected on refractory material shell and in the top of sludge blanking bed, deslagging
Mouth is located at the bottom of refractory material shell, and exhanst gas outlet is located at the top of refractory material shell, and refractory material shell is equipped with auxiliary
Combustor inlet and start-up burner.It is different from the utility model.
Utility model content
To solve in background technique, the sludge incineration effect that proposes is poor, the technologies such as furnace, furnace gas dust content height that are easy to go out are asked
Topic, the utility model provide a kind of thorough burning, safety, convenient for the sludge of sewage treatment plant burning facility of operation.
The utility model is achieved through the following technical solutions: a kind of sludge of sewage treatment plant burning facility, including is burned
Furnace body, upper of furnace body are equipped with bell, and lower part is equipped with furnace bottom；Furnace gas export is offered at the top of bell；It is equipped in the middle part of furnace body secondary
Blast pipe, middle and lower part are equipped with feed inlet, and slag notch is arranged at lower part；Furnace bottom bottom sides are equipped with an air inlet.The furnace body is cylinder
Body structure, including upper and lower two-stage cylindrical barrel and middle part rounding conic tube, upper boiling bed, the junior's cylinder of the formation of higher level's cylinder
The furnace that bottom boiling bed, the middle part inverted cone cylinder of formation are formed expands area.
Be equipped between bottom boiling bed and furnace bottom and divide wind structure, wind structure is divided to include sub-air chamber, sub-air chamber lower part with it is described
Air inlet connection, top are uniformly provided with several air inlet caps, and air inlet cap is equipped with enfeoffment layer.
Bottom boiling bed, which is equipped with to boil, stablizes layer material, and bottom boiling bed interior furnace wall is equipped with heat exchanger.
Wherein, the sub-air chamber is made of steel plate welding, is located at incinerator furnace bottom top, the sky entered for an air inlet
The buffer area of gas；Entering the wind cap is the hollow tubular structure made of heat-resisting cast iron, and air inlet crown portion is blocked by cap package material；Into
Blast cap top and it is located at around cap or less and offers several pores；Point stratification of wind is made of heat-resisting bulk material, setting it is described into
Around the pore of blast cap, it is uniformly distributed fluidized bed furnace bottom air.
Wherein, the secondary wind inleting tube there are two and be symmetricly set on the furnace body junction that boiling bed and furnace expand area.
Further, a point air hose is additionally provided between described two secondary wind inleting tubes and positioned at furnace interior.
Wherein, the stable layer material of the boiling is located at bottom boiling bed bottom, is heat-stable ceramic ball.
Wherein, the incinerator body is followed successively by refractory wall, thermal insulation material, outer steel shell from inside to outside.
Wherein, bottom boiling bed lower part is equipped with clinker cleaning eye, is additionally provided with manhole far from clinker cleaning eye side.
Wherein, the upper of furnace body side, which is opened, is additionally provided with furnace gas side outlet.
Compared with prior art, the beneficial effects of the utility model are:
1. having used novel point of wind structure (sub-air chamber divides blast cap, divides stratification of wind), make incinerator bottom boiling bed interior air-flow point
Cloth is visibly homogeneous.
Stablize layer material 2. being provided with and boiling, can guarantee stable boiling bed in operation, it will not be because of blocky sludge
Entrance and be affected.
3. incinerator top is equipped with upper boiling bed, secondary burning can be carried out, makes to burn more complete.Top furnace gas passes through
Speed reduces after furnace expands area, greatly reduces the amount of dust being discharged in furnace gas.
4. incinerator stable operation, easy control of temperature, heat balance avoid the generation for the furnace that goes out.In-furnace temperature distribution
It is readily maintained at design temperature, clinker appearance does not allow easy to harden and coking, and ash discharge is smoothly.
5. incinerator in-furnace temperature is easy to control, the generation and control of dioxin are easy to reach design requirement in furnace gas, make
It is lower that dioxin concentration must be discharged.
Detailed description of the invention
The utility model is with reference to the accompanying drawings to be further described, in which:
FIG. 1 is a schematic structural view of the utility model；
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.All equivalent changes done according to present utility model application the scope of the patents with
Modification, should all belong to the covering scope of the utility model.
Refering to Figure 1, the utility model provides a kind of sludge of sewage treatment plant burning facility, including incinerator furnace
Body, upper of furnace body are equipped with bell 13, and lower part is equipped with furnace bottom；Furnace gas export 14 is offered at the top of bell 13；Two are equipped in the middle part of furnace body
Secondary blast pipe 9, middle and lower part are equipped with feed inlet 7, and slag notch 21 is arranged at lower part；Furnace bottom bottom sides are equipped with an air inlet 1.The furnace
Body is tube structure, including upper and lower two-stage cylindrical barrel and middle part rounding conic tube, upper boiling bed 15 that higher level's cylinder is formed,
The furnace of bottom boiling bed 18, the formation of middle part inverted cone cylinder that junior's cylinder is formed expands area 17.
Be equipped between bottom boiling bed 18 and furnace bottom and divide wind structure, wind structure is divided to include sub-air chamber 2,2 lower part of sub-air chamber with
Air inlet 1 connection, top are uniformly provided with several air inlet caps 3, and air inlet cap 3 is equipped with enfeoffment layer 4.
Bottom boiling bed 18, which is equipped with to boil, stablizes layer material 6, and boiling bed 18 interior furnace wall in bottom is equipped with heat exchanger 19.
Wherein, the sub-air chamber 2 is made of steel plate welding, is located at incinerator furnace bottom top, is what an air inlet 1 entered
The buffer area of air；Entering the wind cap 3 is the hollow tubular structure made of heat-resisting cast iron, and 3 top of air inlet cap is sealed by cap package material
It is stifled；It enters the wind 3 top of cap and is located at around cap or less and offer several pores；Stratification of wind 4 is divided to be made of heat-resisting bulk material, setting exists
Around the pore of the air inlet cap 3, it is uniformly distributed fluidized bed furnace bottom air.
Wherein, the secondary wind inleting tube 9 there are two and be symmetricly set on boiling bed 15 and furnace expands the furnace body in area 17 and connects
Meet place.
Further, point air hose 10 is additionally provided between described two secondary wind inleting tubes 9 and positioned at furnace interior.
Wherein, the stable layer material 6 of the boiling is located at 18 bottom of bottom boiling bed, is heat-stable ceramic ball.
Wherein, the incinerator body is followed successively by refractory wall 12, thermal insulation material 11, outer steel shell 8 from inside to outside.
Wherein, 18 lower part of bottom boiling bed is equipped with clinker cleaning eye 5, and far from clinker cleaning, (5 sides are additionally provided with maintenance
Hole 20.
Wherein, the upper of furnace body side, which is opened, is additionally provided with furnace gas side outlet 16.
A kind of sludge of sewage treatment plant burning facility-incinerator production run process flow of the utility model is as follows:
Air enters incinerator bottom from an air inlet 1, enters back into sub-air chamber 2, maintains certain wind pressure, makees in pressure
Under, air enters air inlet cap 3, enters the wind in the aperture on 3 top of cap and enters back into point stratification of wind 4, and equably in bottom of incinerator part
Cloth.Air is flowing up, into incinerator bottom boiling bed 18, as air velocity increases, and incinerator bottom boiling bed 18
The pressure of bottom rises, and the stable layer material 6 that boils is held up by air, and it is in fluidized state that layer material 6 is stablized in entire boiling.To burning
The incendivities object such as fuel oil is added in furnace bottom boiling bed 18, and lights, by 18 temperature of incinerator bottom boiling bed be increased to 800 DEG C~
1000 DEG C, stop launching combustible.Sludge material is added from feed inlet 7, sludge material is in boiling bed and boiling stabilized zone material
Material 6 is mixed and is boiled together, and sludge is heated rapidly burning, and fluidized layer temperature maintains 800 DEG C~1000 DEG C.Blocky sludge exists
The burning of incinerator bottom boiling bed and sharp impacts, are broken into fine particle.Fine granule is largely burned to become ashes,
A small amount of sludge is unburned, is mingled with together with ashes, is taken away by furnace gas air-flow.Furnace gas air-flow is expanded with fine grained by incinerator
Great Qu 17, into incinerator on boiling bed 15, form new Boiling Combustion layer, it may be necessary to from secondary wind inleting tube 9 and secondary
Divide air hose 10 to supplement air, maintains burning.By burning, organic matter and harmful organism in sludge are all destroyed, furnace gas from
Furnace gas export 14 is discharged into cleaning procedure.Ashes sub-fraction is taken away by furnace gas, and major part is together with clinker from incinerator slag notch
21 discharges.When the temperature of incinerator bottom boiling bed 18 does not meet design value, it can be adjusted by heat exchanger 19.In operational process
In, the entire in-furnace temperature that burns maintains 800 DEG C~900 DEG C, avoids the generation temperature of dioxin.Incinerator is provided with top
Boiling bed burning is more abundant, and top boiling bed furnace gas flowing velocity reduces, and reduces the entrainment of dust in furnace gas.
Claims (8)
1. a kind of sludge of sewage treatment plant burning facility, including incinerator body, upper of furnace body is equipped with bell (13), and lower part is equipped with
Furnace bottom；Furnace gas export (14) are offered at the top of the bell (13)；Secondary wind inleting tube (9) are equipped in the middle part of the furnace body, middle and lower part
Equipped with feed inlet (7), slag notch (21) are arranged at lower part；The furnace bottom bottom sides are equipped with an air inlet (1), it is characterised in that:
The furnace body is tube structure, including upper and lower two-stage cylindrical barrel and middle part rounding conic tube, higher level's cylinder are formed
Boiling bed (15), junior's cylinder form bottom boiling bed (18), middle part inverted cone cylinder forms furnace and expands area (17)；
It is equipped between the bottom boiling bed (18) and furnace bottom and divides wind structure, it is described that wind structure is divided to include sub-air chamber (2), sub-air chamber
(2) lower part is connect with an air inlet (1), and top is uniformly provided with several air inlets cap (3), and air inlet cap (3), which is equipped with, to be divided
Stratification of wind (4)；
The bottom boiling bed (18), which is equipped with to boil, stablizes layer material (6), and boiling bed (18) interior furnace wall in bottom is equipped with and changes
Hot device (19).
2. a kind of sludge of sewage treatment plant burning facility according to claim 1, it is characterised in that:
The sub-air chamber (2) is made of steel plate welding, is located at incinerator furnace bottom top, the air entered for an air inlet (1)
Buffer area；
The air inlet cap (3) is the hollow tubular structure made of heat-resisting cast iron, is blocked at the top of air inlet cap (3) by cap package material；
The air inlet cap (3) top and it is located at around cap or less and offers several pores；
Described point of stratification of wind (4) is made of heat-resisting bulk material, is arranged around the pore of air inlet cap (3), makes fluidized bed furnace bottom
Portion's air is uniformly distributed.
3. a kind of sludge of sewage treatment plant burning facility according to claim 2, it is characterised in that: the secondary wind inleting tube
(9) there are two and it is symmetricly set on the furnace body junction that boiling bed (15) expand area (17) with furnace.
4. a kind of sludge of sewage treatment plant burning facility according to claim 3, it is characterised in that: it is described two it is secondary into
A point air hose (10) are additionally provided between air hose (9) and positioned at furnace interior.
5. a kind of sludge of sewage treatment plant burning facility according to claim 1, it is characterised in that: the boiling stabilized zone
Material (6) is located at bottom boiling bed (18) bottom, is heat-stable ceramic ball.
6. a kind of sludge of sewage treatment plant burning facility according to any one of claims 1 to 5, it is characterised in that: described
Incinerator body is followed successively by refractory wall (12), thermal insulation material (11), outer steel shell (8) from inside to outside.
7. a kind of sludge of sewage treatment plant burning facility according to any one of claims 1 to 5, it is characterised in that: described
Boiling bed (18) lower part in bottom is equipped with clinker cleaning eye (5), is additionally provided with manhole (20) far from clinker cleaning eye (5) side.
8. a kind of sludge of sewage treatment plant burning facility according to any one of claims 1 to 5, it is characterised in that: described
Upper of furnace body side is also provided with furnace gas side outlet (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821052136.7U CN208546988U (en) | 2018-07-04 | 2018-07-04 | A kind of sludge of sewage treatment plant burning facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821052136.7U CN208546988U (en) | 2018-07-04 | 2018-07-04 | A kind of sludge of sewage treatment plant burning facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208546988U true CN208546988U (en) | 2019-02-26 |
Family
ID=65423659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821052136.7U Expired - Fee Related CN208546988U (en) | 2018-07-04 | 2018-07-04 | A kind of sludge of sewage treatment plant burning facility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208546988U (en) |
-
2018
- 2018-07-04 CN CN201821052136.7U patent/CN208546988U/en not_active Expired - Fee Related
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |