CN202938317U - Device of crushing pyrolysis and resource utilization of sludge - Google Patents
Device of crushing pyrolysis and resource utilization of sludge Download PDFInfo
- Publication number
- CN202938317U CN202938317U CN2012206866894U CN201220686689U CN202938317U CN 202938317 U CN202938317 U CN 202938317U CN 2012206866894 U CN2012206866894 U CN 2012206866894U CN 201220686689 U CN201220686689 U CN 201220686689U CN 202938317 U CN202938317 U CN 202938317U
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- sludge
- boiler
- mud
- pipeline
- resource utilization
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
Abstract
The utility model relates to a device of crushing pyrolysis and resource utilization of sludge. The device of crushing pyrolysis and resource utilization of the sludge comprises a sludge storage which is communicated with a fan grind through a sludge screw conveyer. A hot air inlet, a combustible gas outlet and a sludge outlet are formed in the fan grind. The combustible gas outlet is communicated with a boiler through a pipeline. The sludge outlet is communicated with the boiler through a pipeline and a rough powder classifier. The hot air inlet is connected with two pipelines including a hot air pipeline which is connected with an air preheater and a blower, and a flue gas pipeline which is communicated with a boiler smoke pumping port. The device of crushing pyrolysis and resource utilization of the sludge can achieve resource utilization of the sludge. By using a burning mode, volume of pollution can be greatly reduced, and all causative agents can be killed. After high-temperature processing, the causative agents hardly exist in burning residue, and the problem of stink of sludge pollution is thoroughly solved. Meanwhile, the device of crushing pyrolysis and resource utilization of the sludge can control discharge of oxynitride.
Description
Technical field
The utility model relates to a kind of device of sludge crushing pyrolysis recycling, a kind ofly realizes simultaneously drying sludge, fragmentation, pyrolysis and utilize dried mud and fuel gas that pyrolyzing sludge produces carries out the denitration by refueling resource utilization device in fan mill.
Background technology
In recent years, city environmental pollution is on the rise, and except vehicular discharge, industrial pollution, also has noxious waste pollution, wherein quantity larger and not tractable a kind of be exactly that mud pollutes.Contain the harmful substances such as a large amount of germs, heavy metal and Polychlorinated biphenyls in mud, but also can emit foul gas, if deal with improperly, harmfulness is very large.Because current city produces, sanitary sewage disposal is mainly adopted activated sludge process, thereby inevitably produced moisture content up to the byproduct mud more than 80%.Along with the popularization of urbanization process quickening and activated sludge water treating method, sludge yield is also more and more large, causes the problem of dissolving of mud to become increasingly conspicuous, and needs to be resolved hurrily.Up to now, the method for lignin-sludge mainly contains landfill, agricultural, burning etc.Wherein burning method is large because subtracting capacity, and can eliminate reliably harmful substances a large amount of in mud and day by day come into one's own.
Sludge incineration is under the condition of uniform temperature, the abundant aerobic of gas phase, makes the organic matter generation combustion reaction in mud, and changes into CO
2, H
2O, N
2Etc. corresponding gaseous substance, comprise evaporation, volatilization, decomposition, sintering, dissolve and redox reaction, and the comprehensive physical of corresponding mass transfer and heat transfer changes and chemical reaction process.Sludge incineration can greatly reduce the volume of mud, and with respect to the mud of mechanical dehydration, final incineration ashes volume only is equivalent to 10% of initial product.Sludge incineration simultaneously can be killed all pathogen, by high-temperature process, almost there is no pathogen in combustion residue, thoroughly solves the stench problem of mud.In recent years, speed is fast, floor space is little, do not need the remarkable advantages such as long term storage because it has, and sludge incineration has become main development direction and the study hotspot of Treatment of Sludge, more and more is subject to the favor of countries in the world.
Can produce a large amount of meetings in the sludge incineration process and produce a large amount of oxides of nitrogen gas.Oxides of nitrogen gas not only stimulates people's respiratory system, and the infringement animals and plants damage the ozone layer, and are to cause one of greenhouse effects, acid rain and photochemically reactive main matter.Controlling the oxides of nitrogen gas Production and emission is significant.
Therefore, need a kind of new technology and device to realize the recycling of mud, and can realize the nitrogen oxide low emission.
Summary of the invention
The purpose of this utility model is to provide a kind of device of sludge crushing pyrolysis recycling, not only can realize drying, fragmentation, the pyrolysis of mud in fan mill, can also realize that fuel gas that dried mud and pyrolysis produce passes into the burner hearth reburning zone and realizes denitration by refueling.
The technical scheme that the utility model is taked is:
A kind of device of sludge crushing pyrolysis recycling, comprise the mud warehouse, the mud warehouse communicates with fan mill by the mud conveying worm, fan mill is provided with hot blast import, fuel gas outlet and sludge outlet, the fuel gas outlet communicates with boiler by pipeline, and sludge outlet communicates with boiler by pipeline, mill separator, and the hot blast import connects two-way, one the tunnel is the hot air duct that is connected with air preheater and pressure fan, and another road is a stove smoke pipeline that communicates with boiler smoke smoking mouth.
Be provided with automatic balance between described mud warehouse and mud conveying worm.
Described stove smoke pipeline is provided with air-introduced machine and cyclone separator.
Described boiler divides boiler primary zone, boiler reburning zone, boiler combustion exhausted district, and the boiler primary zone is provided with burner, and the boiler reburning zone is provided with fuel gas spout and mud spout.
The utility model is realized drying, fragmentation, the pyrolysis of mud simultaneously in fan mill, the fuel gas that dried mud and pyrolysis are produced passes into the burner hearth reburning zone, excess air coefficient is less than forming reducing atmosphere under 1 condition, the reduction of nitrogen oxide that the primary zone is produced is realized denitration by refueling.The drier that passes into fan mill is that hot blast is mixed the stove cigarette, temperature is about 250 ℃ ~ 350 ℃, not only improved the drying capacity of system, and sneaking into due to inert gas in flue gas, reduced the oxygen concentration of drier and the temperature levels in hearth combustion zone, can greatly reduce system and naturally explode and NO
XGeneration.
The utility model can be realized the recycling of mud, utilizes the mode of burning can greatly reduce the volume of mud, can kill all pathogen, by high-temperature process, almost there is no pathogen in combustion residue, thoroughly solves the stench problem of mud.Simultaneously, the utility model can be controlled the discharging of nitrogen oxide.Because the denitration efficiency of gaseous fuel is higher than solid fuel, the gas that dried mud and pyrolyzing sludge produce passes into respectively the burner hearth reburning zone can realize higher denitration efficiency.
Description of drawings
Fig. 1 is the structural representation of the utility model device.
Wherein: 1, mud warehouse, 2, automatic balance, 3, the mud conveying worm, 4, fan mill, 5, fuel gas spout, 6, the mud spout, 7, burner, 8, mill separator, 9, hot air duct, 10 stove smoke pipelines, 11, air-introduced machine, 12, cyclone separator, 13, pressure fan, 14, air preheater, 15, economizer, 16, smoke mouthful, 17, boiler, I, boiler combustion exhausted district, II, boiler reburning zone, III, boiler primary zone.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.
A kind of device of sludge crushing pyrolysis recycling, comprise mud warehouse 1, mud warehouse 1 communicates with fan mill 4 by mud conveying worm 3, fan mill 4 is provided with hot blast import, fuel gas outlet and sludge outlet, the fuel gas outlet communicates with boiler by pipeline, sludge outlet communicates with boiler by pipeline, mill separator 8, the hot blast import connects two-way, one the tunnel is the hot air duct 9 that is connected with air preheater 14 and pressure fan 13, and another road is and boiler smoke smoking mouthful 16 stove smoke pipelines 10 that communicate.3 of mud warehouse 1 and mud conveying worms are provided with automatic balance 2.Stove smoke pipeline 10 is provided with air-introduced machine 11 and cyclone separator 12.Boiler 17 minutes boiler primary zone III, boiler reburning zone II, boiler combustion exhausted district I, boiler primary zone III is provided with burner 7, and boiler reburning zone II is provided with fuel gas spout 5 and mud spout 6.
Drier is that hot blast is mixed stove cigarette composition.Hot blast is that pressure fan 13 is sent into air preheater 14 and added thermosetting.The stove cigarette is extracted by the smoking mouth 16 that is positioned at economizer 15 entrances, and through cyclone separator 12 dedustings,, passes into fan mill 4 and realizes the drying of mud, fragmentation, pyrolysis with after hot blast mixes by air-introduced machine 11.The fuel gas that pyrolysis produces directly passes into burner hearth reburning zone II by fuel gas spout 5.The flue-gas temperature that hearth combustion produces is at 400 ℃ ~ 500 ℃, through the hot blast temperature of air preheater heating at 100 ℃ ~ 150 ℃.After mixing, hot blast temperature is 250 ℃ ~ 350 ℃.
After the fuel gas that dried mud and pyrolyzing sludge produce passes into burner hearth reburning zone II, form reducing atmosphere at excess air coefficient under less than 1 condition, make reduction of nitrogen oxide, realize denitration by refueling.
Claims (4)
1. the device of a sludge crushing pyrolysis recycling, it is characterized in that, comprise the mud warehouse, the mud warehouse communicates with fan mill by the mud conveying worm, fan mill is provided with hot blast import, fuel gas outlet and sludge outlet, the fuel gas outlet communicates with boiler by pipeline, sludge outlet communicates with boiler by pipeline, mill separator, the hot blast import connects two-way, one the tunnel is the hot air duct that is connected with air preheater and pressure fan, and another road is a stove smoke pipeline that communicates with boiler smoke smoking mouth.
2. the device of a kind of sludge crushing pyrolysis recycling according to claim 1, is characterized in that, is provided with automatic balance between described mud warehouse and mud conveying worm.
3. the device of a kind of sludge crushing pyrolysis recycling according to claim 1, is characterized in that, described stove smoke pipeline is provided with air-introduced machine and cyclone separator.
4. the device of a kind of sludge crushing pyrolysis recycling according to claim 1, it is characterized in that, described boiler divides boiler primary zone, boiler reburning zone, boiler combustion exhausted district, and the boiler primary zone is provided with burner, and the boiler reburning zone is provided with fuel gas spout and mud spout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206866894U CN202938317U (en) | 2012-12-12 | 2012-12-12 | Device of crushing pyrolysis and resource utilization of sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206866894U CN202938317U (en) | 2012-12-12 | 2012-12-12 | Device of crushing pyrolysis and resource utilization of sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202938317U true CN202938317U (en) | 2013-05-15 |
Family
ID=48322554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206866894U Expired - Fee Related CN202938317U (en) | 2012-12-12 | 2012-12-12 | Device of crushing pyrolysis and resource utilization of sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202938317U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980196A (en) * | 2012-12-12 | 2013-03-20 | 山东大学 | Breaking and pyrolyzing device for recycling sludge and breaking and pyrolyzing technology recycling sludgetherefor |
| CN105435625A (en) * | 2015-12-30 | 2016-03-30 | 天津中材工程研究中心有限公司 | Sludge-dispersing equipment used for cement kiln for denitration |
-
2012
- 2012-12-12 CN CN2012206866894U patent/CN202938317U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980196A (en) * | 2012-12-12 | 2013-03-20 | 山东大学 | Breaking and pyrolyzing device for recycling sludge and breaking and pyrolyzing technology recycling sludgetherefor |
| CN102980196B (en) * | 2012-12-12 | 2015-04-15 | 山东大学 | Breaking and pyrolyzing device for recycling sludge and breaking and pyrolyzing technology recycling sludgetherefor |
| CN105435625A (en) * | 2015-12-30 | 2016-03-30 | 天津中材工程研究中心有限公司 | Sludge-dispersing equipment used for cement kiln for denitration |
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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: 20130515 Termination date: 20171212 |