CN204478083U - Recirculating fluidized bed sludge incinerator - Google Patents
Recirculating fluidized bed sludge incinerator Download PDFInfo
- Publication number
- CN204478083U CN204478083U CN201420821920.5U CN201420821920U CN204478083U CN 204478083 U CN204478083 U CN 204478083U CN 201420821920 U CN201420821920 U CN 201420821920U CN 204478083 U CN204478083 U CN 204478083U
- Authority
- CN
- China
- Prior art keywords
- flue
- burner hearth
- fluid bed
- bed
- separator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000010802 sludge Substances 0.000 title claims abstract description 14
- 230000003134 recirculating effect Effects 0.000 title claims abstract description 10
- 239000012530 fluid Substances 0.000 claims abstract description 16
- 239000002028 Biomass Substances 0.000 claims abstract description 12
- 230000008676 import Effects 0.000 claims abstract description 12
- 239000000446 fuel Substances 0.000 claims abstract description 11
- 239000003245 coal Substances 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000000295 fuel oil Substances 0.000 description 4
- 239000003345 natural gas Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000002361 compost Substances 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model discloses a kind of recirculating fluidized bed sludge incinerator.It comprises burner hearth, first, second flue, and burner hearth bottom has plenum chamber, and fluid bed is arranged at plenum chamber top, and the burner hearth sidewall on fluid bed has charging aperture.There is separator between burner hearth and the first flue, be all communicated with between roof of the furnace with separator top, between separator top with the first flue upper end, between the first flue lower end with the second flue lower end.There are high-temperature economizer and high-temperature air preheater in first flue, in the second flue, have low-temperature air preheater and low-level (stack-gas) economizer.Be characterized in that described burner hearth is the adiabatic hearth box not with fin panel casing pipe, fluid bed bed surface is coal-burning boiler bed surface, and charging aperture comprises mud import and biomass fuel import.The fuel requirement of the utility model energy adapted biomass, Treatment of Sludge becomes low, and the scope of application is unrestricted.
Description
Technical field
The utility model relates to a kind of boiler, specifically, is used to the recirculating fluidized bed sludge incinerator burning the mud produced in sewage disposal process.
Background technology
All know at sewage treatment industry, a large amount of mud can be produced in sewage disposal process.At present, the process for mud mainly contains landfill, compost and burning three kinds of methods, adopts landfill to carry out lignin-sludge, not only can take a large amount of soils, also easily cause secondary pollution to environment.Owing to containing heavy metal contaminants in mud, still containing heavy metal contaminants in the fertilizer that compost treatment produces, still secondary pollution can be brought to environment.Therefore, burning mud is the optimal selection of lignin-sludge.At present, carry out burning incinerator used to mud and be still traditional coal-burning type boiler, it is in fire coal, mix a small amount of mud, and utilization combustion burning of coal realizes the burning to mud.Owing to being provided with fin panel casing pipe in the furnace wall of coal-burning type boiler, and containing large quantity of moisture in mud, the steam in burning process in mud can be full of burner hearth, and fin panel casing pipe is in steam for a long time, causes the corrosion of water-cooling wall pipe and damages.Therefore, adopt coal-burning type boiler to carry out burning sludge, can have a negative impact to boiler performance and safety.So coal-burning type boiler can only take fire coal as fuel, can not be used for burning mud, the scope of application is restricted.Carrying out burning owing to adopting coal-burning type boiler to mud is in fire coal, mix a small amount of mud, and utilization combustion burning of coal realizes the burning to mud, and the fire coal of needs is many, high to the processing cost of mud.
Again because the charging aperture of coal-burning type boiler only has one, the needs of the biomass fuel of the large-size except fire coal, natural gas or fuel oil cannot be adapted to.
Utility model content
Problem to be solved in the utility model is to provide a kind of recirculating fluidized bed sludge incinerator.This recirculating fluidized bed sludge incinerator, can adapt to the needs of the biomass fuel of the large-size except fire coal, natural gas or fuel oil, low to being processed into of mud, the scope of application is unrestricted.
The problems referred to above to be solved in the utility model are realized by following technical scheme:
Recirculating fluidized bed sludge incinerator of the present utility model comprises burner hearth, the first flue and the second flue, and burner hearth bottom has plenum chamber, and fluid bed is arranged at plenum chamber top, and the burner hearth sidewall on fluid bed has charging aperture.Separator is had between burner hearth and the first flue, there is outlet flue roof of the furnace side, and separator top and its side have into mouth and exhaust opening respectively, described outlet flue with enter mouth and communicate, described exhaust opening is communicated with the first flue upper end, and described first flue lower end is communicated with the second flue lower end.There are high-temperature economizer and high-temperature air preheater in described first flue, in described second flue, have low-temperature air preheater and low-level (stack-gas) economizer.Be characterized in that described burner hearth is the adiabatic hearth box not with fin panel casing pipe, described fluid bed bed surface is coal-burning boiler bed surface, and described charging aperture comprises mud import and biomass fuel import.
As can be seen from the above scheme, due to the adiabatic furnace that described burner hearth is not with membranous wall pipe, described fluid bed bed surface is coal-burning boiler bed surface, adopt the adiabatic furnace that coal-burning boiler bed surface combines with the non-coal-burning type boiler not with fin panel casing pipe, avoid fin panel casing pipe to be in for a long time in steam, cause the corrosion of water-cooling wall pipe and situation about damaging occurs, eliminate and boiler performance and safety are had a negative impact.Make the utility model can be used to burn mud, the scope of application is not restricted.
Again because described charging aperture comprises mud import and biomass fuel import, agricultural crop straw can be utilized, bark, leftover bits that wood industry process produces, the biomass materials such as the branch that greening cutting is got off are as combustion-supporting material, and burn together with mud from biomass fuel import feeding burner hearth, with adopt coal-fired, natural gas or fuel oil as compared with combustion-supporting material in background technology, greatly reduce the processing cost of mud.
Accompanying drawing explanation
Fig. 1 is recirculating fluidized bed sludge incinerator structural representation of the present utility model.
Detailed description of the invention
As shown in Figure 1, recirculating fluidized bed sludge incinerator of the present utility model comprises burner hearth 5, first flue 7 and the second flue 12, described first flue 7 and the second flue 12 are all arranged in vertical, and the first flue 7 and the longitudinal direction of the second flue 12 and the vertical centerline parallel of burner hearth 5.Be provided with plenum chamber 2 bottom burner hearth 5, plenum chamber 2 top is provided with fluid bed 3, and burner hearth 5 sidewall on fluid bed 3 is processed with charging aperture 4.Have slag dropping tube 1 under fluid bed 3, slag dropping tube 1 upper end is communicated with burner hearth 5 through after fluid bed 3 below fluid bed 3.Separator 6 is provided with between burner hearth 5 and the first flue 7, side, burner hearth 5 top is processed with outlet flue, separator 6 top and its side are processed with into mouth and exhaust opening respectively, described outlet flue with enter mouth and communicate, described exhaust opening is communicated with the first flue 7 upper end, and described first flue 7 lower end is communicated with the second flue 12 lower end.Wherein, separator 6 lower end is communicated with burner hearth with material returning device 10 by pipeline with between burner hearth 5.
There are high-temperature economizer 8 and high-temperature air preheater 9 in described first flue 7, in described second flue 12, have low-temperature air preheater 11 and low-level (stack-gas) economizer 13.Described burner hearth 5 is the adiabatic hearth boxs not with fin panel casing pipe with pure refractory material casting, and the bed surface of described fluid bed 3 is coal-burning boiler bed surface.Because the wall in burner hearth 5 is without fin panel casing pipe, avoids fin panel casing pipe and be in for a long time in steam, cause the corrosion of water-cooling wall pipe and situation about damaging occurs, eliminate the adverse effect that boiler 5 performance and safety are produced.
Described charging aperture 4 comprises mud import and biomass fuel import, agricultural crop straw can be utilized, bark, leftover bits that wood industry process produces, the biomass materials such as the branch that greening cutting is got off are as combustion-supporting material, and burn together with mud from biomass fuel import feeding burner hearth 5, with adopt coal-fired, natural gas or fuel oil as compared with combustion-supporting material in background technology, greatly reduce the processing cost of mud.
Claims (1)
1. recirculating fluidized bed sludge incinerator, comprise burner hearth (5), the first flue (7) and the second flue (12), plenum chamber (2) is arranged at burner hearth (5) bottom, and fluid bed (3) is arranged at plenum chamber (2) top, and burner hearth (5) sidewall on fluid bed (3) has charging aperture (4); Separator (6) is had between burner hearth (5) and the first flue (7), there is outlet flue burner hearth (5) side, top, separator (6) top and its side have into mouth and exhaust opening respectively, described outlet flue with enter mouth and communicate, described exhaust opening is communicated with the first flue (7) upper end, and described first flue (7) lower end is communicated with the second flue (12) lower end; There are high-temperature economizer (8) and high-temperature air preheater (9) in described first flue (7), in described second flue (12), have low-temperature air preheater (11) and low-level (stack-gas) economizer (13); It is characterized in that described burner hearth (5) is the adiabatic hearth box not with fin panel casing pipe, the bed surface of described fluid bed (3) is coal-burning boiler bed surface, and described charging aperture (4) comprises mud import and biomass fuel import.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420821920.5U CN204478083U (en) | 2014-12-23 | 2014-12-23 | Recirculating fluidized bed sludge incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420821920.5U CN204478083U (en) | 2014-12-23 | 2014-12-23 | Recirculating fluidized bed sludge incinerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204478083U true CN204478083U (en) | 2015-07-15 |
Family
ID=53633872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420821920.5U Expired - Fee Related CN204478083U (en) | 2014-12-23 | 2014-12-23 | Recirculating fluidized bed sludge incinerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204478083U (en) |
-
2014
- 2014-12-23 CN CN201420821920.5U patent/CN204478083U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20211223 |