CN101885574A - Outfit for municipal sludge thermal oxidation treatment - Google Patents
Outfit for municipal sludge thermal oxidation treatment Download PDFInfo
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- CN101885574A CN101885574A CN2009100620662A CN200910062066A CN101885574A CN 101885574 A CN101885574 A CN 101885574A CN 2009100620662 A CN2009100620662 A CN 2009100620662A CN 200910062066 A CN200910062066 A CN 200910062066A CN 101885574 A CN101885574 A CN 101885574A
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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
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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Abstract
The invention relates to an outfit for municipal sludge thermal oxidation treatment. According to a sludge treatment flow sequence, the outfit comprises a sludge dryer, a sludge conveyer, a sludge burner, a steel ball heater, a steel ball conveyer and a mixed air condensation and absorption device, wherein the lower part of the sludge dryer is provided with a classifier, and the upper part thereof is connected with the steel ball conveyer; the dried sludge outlet of the classifier collects the dried sludge in a dried sludge storage box through the sludge conveyer and then is connected with the sludge burner; and the upper part of the sludge burner is communicated with hot air inlets of the steel ball heater and the steel ball conveyer, and air outlets are connected to an air inlet of the mixed air condensation and absorption device. In the invention, the sludge is locally decomposed and burned sufficiently by using a plurality of advanced technical means and patent devices, and the invention has the advantages of high-efficiency treatment process, environmental protection, economy, simple operation, small occupied area and strong adaptability.
Description
Technical field
The present invention relates to environmental protection equipment, is a kind of outfit for municipal sludge thermal oxidation treatment specifically.
Background technology
As everyone knows, the realistic problem of a large amount of sludge treatment difficulties that sewage disposal in the world produced is very general, municipal sludge is meant the sedimentable matter that the municipal sewage plant produces in the process of disposing of sewage, also can produce body refuse in the industrial sewage treating processes, because the sewage different in kind that different industries produces, thereby sludge components is also different, mainly contains chemical engineering sludge, printing and dyeing sludge, leather-making mud, paper mill sludge, metal finishing mud etc. by the industry branch.These sludge components complexity, the overwhelming majority belongs to Hazardous wastes.The sludge treatment of China was just at the early-stage in recent years, the concomitant output mud of most of local sewage disposal does not obtain fully effectively control, most sewage works just are sent to the refuse tip landfill with mud or are directly exposed in the wilderness, not only cause secondary pollution, and jeopardize the healthy of the present age and future generations.This sludge moisture content height, perishable has the intensive stink, and contains parasitic ovum, pathogenic micro-organism and heavy metal, and as not dealt carefully with, discharging will cause secondary pollution arbitrarily.The hazardous and noxious substances that contains difficult degradations such as heavy metals such as a large amount of pathogenic bacterias, parasite (ovum) and chromium, mercury and polychlorobiphenyl, Dioxins, radionuclide in the mud.The toppling over arbitrarily of mud, stacking, landfill have caused serious consequence.Toppling over arbitrarily of mud and rubbish not only causes visual pollution, and provides the place for growing of other harmful organisms; Mud is deposited in and gives out foul smell and peculiar smell in the open, and Exposure to Sunlight wind blows, and contaminant particle can cause topsoil; Through water logging bubble, dissolving, pollutent follows sewage to flow into the river course, the meeting polluted surface water; Direct landfill particularly will be listed the mud landfill of Hazardous wastes, polluted underground water in.
A large amount of work has all been carried out at this difficult problem in countries in the world: Switzerland adopts the mode that mud focuses on of collecting, the application specific equipment has solved the sludge incineration handling problem, but the exhaust gas emission problem that the carrier vehicle that the centralized collection process still exists loading, transportation to bring needs oil to produce.
Europe other countries such as France have just adopted many covers sludge treatment method: have plenty of mud is refertilized in the farmland through thermal purification (heating or compost) or chemical purification (using unslaked lime); Mud dries in the elder generation that has, then in the farmland of applying fertilizer; The back that mud is dried that has is burned or is directly burned; The elder generation that also has handles mud with unslaked lime, then hermetically storing.But these all methods all are mud to be collected from the place of production handle ground, thereby have increased emission of automobile wastes amount in the transportation, produce Greenhouse effect and have improved cost.Conventional drying sludge thermal treatment has dual mode: 1) through burning heat drying.2) use unslaked lime heat drying (chemical mode).But this dual mode all relates to transportation problem, and promptly mud produces the transportation between place and the processing place, and this mode of focusing on will produce the carbon dioxide discharging behind the use oil once more.Think and find one by water treatment plant's mud on-the-spot disposal not only environmental protection but also economic settling mode just seem very important.
About the data of mud on-site incineration disaggregating treatment and document seldom, known to have only a few very big sewage works that the sludge incineration facility is arranged, the general technique means that adopts is that composting burns.What the French Patent NO.FR 0311957 that knows as us used is the thermooxidizing switching technology of steel ball and mud, the temperature of thermooxidizing is between 350 ℃ to 395 ℃, do not reach the needed 850 ℃ of high temperature of abundant decomposition, can not satisfy one kilogram mud and 30 kilograms steel ball and mix the requirement of required exchange treatment temp between 145 ℃ to 165 ℃.This can not satisfy the clean-burning temperature of needed inflammable dry substance when obtaining the warm air spray combustion.
Summary of the invention
The purpose of this invention is to provide and a kind ofly mud fully can be burned on the spot, decomposes, and the outfit for municipal sludge thermal oxidation treatment of save energy, economy, environmental protection.
Described outfit for municipal sludge thermal oxidation treatment, according to the sludge treatment flow sequence, this equipment comprises following equipment: the mud storage tank, the mud injector, sludge dryer, the mud forwarder, the dewatered sludge storage tank, the sludge incineration device, the steel ball well heater, the steel ball forwarder, the Mixed Gas Condensation resorber, wherein the mud storage tank is connected with mud injector inlet by sludge pump, the jet orifice of mud injector is linked sludge dryer, sifter is arranged at the bottom of sludge dryer, top connects the steel ball forwarder, the dewatered sludge outlet of described sifter is collected the dewatered sludge storage tank by the mud forwarder with dewatered sludge, the sludge incineration device is linked in the outlet of dewatered sludge storage tank, sludge incineration device top is communicated with the hot gas inlet of steel ball well heater and steel ball forwarder, the hot gas outlet of steel ball well heater and steel ball forwarder is connected to the gas inlet of Mixed Gas Condensation resorber, Mixed Gas Condensation resorber top is provided with the resorption gas device, and resorption gas device output channel is linked sludge dryer.
Described sifter also has a steel ball outlet, and the steel ball inlet of described steel ball outlet and steel ball forwarder bottom joins.
The outlet of described dewatered sludge storage tank also is connected with gas blower.
Described sludge incineration device is provided with air-returning device, and air-returning device is communicated with the combustion chamber of sludge incineration device with the preheating chamber of sludge incineration device.
The Sewage outlet of described Mixed Gas Condensation resorber is communicated with the circulating water device of sewage work by pipeline.
The present invention uses multinomial advanced person's technique means and patent equipment, and mud is decomposed fully on the spot, burns, and efficient, the environmental protection for the treatment of processes has following advantage in environmental protection, economy, technology, application:
1, environmental protection, reduction of discharging: drying sludge is become the dry powder afterfire, just can produce the high temperature of thousands of degree, the objectionable impurities of municipal sludge can be wiped up fully, make chlorine wherein seldom produce Dioxins especially in several seconds.Even a spot of Dioxins is arranged, by the overanxious absorption of oil, or the high-temp combustion by thousands of degree falls in secondary combustion.So the gas objectionable impurities that gives off is few.
Mud contains a large amount of hydrogen sulfide, amine substance, and stinking smell assaulting one's nostrils.But toast in this airtight device, foul smell is sent into the combustion chamber by gas blower, and high-temp combustion falls.Foul smell can not leak, and does not pollute the environment; Ash after the sludge incineration also can be used to make brick or cement.
2, save energy: the high temperature that adopts the sludge dry powder burning to produce, mud is roasted into dry powder, make mud become the very high fuel of fuel value, and in native system with the combustion heat energy recycle.This round-robin process has been saved a large amount of energy.
3, technology advanced person: 1.. adopt the blast roasting that dusts, make the sludge dry powder can perfect combustion.2., utilize the combustion-supporting air of waste heat heating of flue gas, help sludge dry powder perfect combustion.3., adopt steel ball heat exchanging, drying sludge is become dry powder, improve the efficiency of combustion of mud.
4, simple to operate, the level of automation height: whole process is controlled automatically, opens, stops button as long as click.
5, the integrated level height, take up an area of less, suitability is strong: this sludge incineration device can be installed in Sewage Plant fully owing to the integrated level height, take up an area of fewly, and the mud that Sewage Plant produces is handled nearby, reduces trucking costs.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1-mud storage tank, 2-sludge dryer, 3-steel ball well heater, 4-steel ball forwarder, 5-dewatered sludge storage tank, 6-sludge incineration device, 7-Mixed Gas Condensation resorber, 8-circulating water device, 9-mud injector, the 10-sifter, 11-mud forwarder, 12-air-returning device, 13-resorption gas device, the outlet of 14-steel ball, 15-steel ball inlet, 16-gas blower.
Embodiment
The present invention is further described below in conjunction with accompanying drawing: outfit for municipal sludge thermal oxidation treatment as shown in fig. 1, it is characterized in that: according to the sludge treatment flow sequence, this equipment comprises following equipment: mud storage tank 1, mud injector 9, sludge dryer 2, mud forwarder 11, dewatered sludge storage tank 5, sludge incineration device 6, steel ball well heater 3, steel ball forwarder 4, Mixed Gas Condensation resorber 7, wherein mud storage tank 1 is connected with mud injector 9 inlets by sludge pump, the jet orifice of mud injector 9 is linked sludge dryer 2, sifter 10 is arranged at the bottom of sludge dryer 2, top connects steel ball forwarder 4, the dewatered sludge outlet of described sifter 10 is collected dewatered sludge storage tank 5 by mud forwarder 11 with dewatered sludge, sludge incineration device 6 is linked in the outlet of dewatered sludge storage tank 5, sludge incineration device 6 tops are communicated with the hot gas inlet of steel ball well heater 3 and steel ball forwarder 4, the hot gas outlet of steel ball well heater 3 and steel ball forwarder 4 is connected to the gas inlet of Mixed Gas Condensation resorber 7, Mixed Gas Condensation resorber 7 tops are provided with resorption gas device 13, and resorption gas device 13 output channels are linked sludge dryer 2.
Described sifter 10 also has a steel ball outlet 14, and the steel ball inlet 15 of described steel ball outlet 14 and steel ball forwarder 4 bottoms joins.Sifter 10, steel ball forwarder 4, steel ball well heater 3 and sludge dryer 2 constitute steel ball heat exchanging system, and the thermal source of steel ball heat exchanging system uses the sludge incineration device sludge high temperature to be burned the heat that is produced.Owing to use steel ball directly to contact with the heat exchange thing, saved the transmission medium on the one hand, make heat exchanger structure obtain simplifying, cost is minimized, and greatly degree improves the heat exchange contact area on the other hand, reduces the energy waste in the heat transfer process, and can combine with reactor, condenser, the hot gas that utilizes reactor to produce directly or indirectly carries out heat exchange with steel ball and reactant, forms flowing-type, circulating heat exchange systems, reaches efficiently, the purposes of energy-saving and environmental protection.Device fabrication is simple, and steel ball cleans, changes easily, and is easy to operate, input-output rate height.Utilize the waste heat of reaction or heat exchange or the heat energy of the hot waste gas that reaction produces, reach the utilization again of resource, and recycle hot waste gas, reduce greenhouse gas emission.The steel ball heat exchanging system patent applied for that the present invention uses, patent name: steel ball heat exchanging system, application number is: CN 2009100608105.
The outlet of described dewatered sludge storage tank 5 also is connected with gas blower 16.By gas blower 16 and a certain proportion of air mixed, dewatered sludge is transported to sludge incineration device 6, enter the combustion chamber, high temperature moment burning.
Described sludge incineration device 6 is provided with air-returning device 12, and air-returning device 12 is communicated with the combustion chamber of sludge incineration device 6 with the preheating chamber of sludge incineration device 6.By collecting gas fume after burning in body of heater after the preheating, the powdery dewatered sludge with preheating enters combustion chambers burn again, makes it fully burning fully, reduces emission of harmful substances.The sludge incineration device 6 that the present invention uses adopts outstanding envelope, vortex structure, utilizes circling round and gaseous matter formation convection current of reactant, reduces pollutions such as noise, radiation, safety, reliable, and simple to operate, manufacturing cost and running cost are all extremely low, input-output rate height.The burner apparatus patent applied for, patent name: vortex incinerator, number of patent application is: CN 2009100608092.
The Sewage outlet of described Mixed Gas Condensation resorber 7 is communicated with the circulating water device 8 of sewage work by pipeline.7 device fabrications of Mixed Gas Condensation resorber are simple, be convenient to clean, change filtration unit, adopt Double-Tower Structure, in the time of objectionable impuritiess such as absorption dioxin, COV, absorb the heat of discharging flue gas, make it to be cooled to 20-25 ℃, select high temperature resistant, non-inflammable organic oil fatsolvent for use, workable, efficient, safety, energy-saving and environmental protection, Mixed Gas Condensation resorber 7 patent applied fors that the present invention uses, patent name is a: dioxin condensation absorber.
Entire equipment, good seal, the gas of all generations all need just can emit by the Mixed Gas Condensation resorber, are provided with the flue gas suck-back device, can reduce gaseous emission, make it burning fully, and guarantee that emission gases reaches environmental protection standard.
The present invention makes mud storage tank 1 can directly be connected with the exhaust outlet of mud, can be installed in Sewage Plant fully, and the mud that Sewage Plant produces is handled nearby, reduces trucking costs.
Overall workflow is as follows: by sludge pump the mud in the mud storage tank 1 is advanced to mud injector 9, spray sludge dryer 2, mud mixes by agitator with the steel ball that heats in sludge dryer 2, after controlling abundant heat exchange by temperature and time, the mud complete drying, by sifter 10 dewatered sludge and steel ball are separated, dried dewatered sludge is collected dewatered sludge storage tank 5 by mud forwarder 11 again.Outlet at dewatered sludge storage tank 5, by gas blower 16 and a certain proportion of air mixed, be transported to sludge incineration device 6, enter the combustion chamber, high temperature moment burning, roasting kiln is connected to air-returning device 12, by collect the dewatered sludge preheating that gas fume after burning will be burned in body of heater, temperature enters combustion chambers burn again at 850 degree～1000 degree, make it fully burning fully, reduce emission of harmful substances.Ashes after the burning collect accomplishes effective processing.The hot gas that burning produces enters steel ball well heater 3 by pipeline, the heating steel ball, steel ball after will heating again enters sludge dryer 2 by steel ball forwarder 4, the outlet of sludge dryer 2 is sifters 10, sifter 10 separates steel ball after the heat exchange and dewatered sludge, steel ball enters the 4 circulation heating of steel ball forwarder, and dewatered sludge enters mud forwarder 11, forms circulating, flowing-type heat exchange.Gas after the heat exchange enters Mixed Gas Condensation resorber 7 again, absorbs by washing to be cooled to 20-25 ℃, absorb by efficient organic oil again, filtering out harmful matter, at last by chimney to airborne release.Mixed Gas Condensation resorber 7 is connected to resorption gas device 13, and when gaseous emission was excessive, by gas blower 16 resorptions, the combustion chambers burn that enters sludge incineration device 6 again reached the purpose that reduces discharging, safety dumping.
Claims (5)
1. outfit for municipal sludge thermal oxidation treatment, it is characterized in that: according to the sludge treatment flow sequence, this equipment comprises following equipment: mud storage tank (1), mud injector (9), sludge dryer (2), mud forwarder (11), dewatered sludge storage tank (5), sludge incineration device (6), steel ball well heater (3), steel ball forwarder (4), Mixed Gas Condensation resorber (7), wherein mud storage tank (1) is connected with mud injector (9) inlet by sludge pump, the jet orifice of mud injector (9) is linked sludge dryer (2), sifter (10) is arranged at the bottom of sludge dryer (2), top connects steel ball forwarder (4), the dewatered sludge outlet of described sifter (10) is collected dewatered sludge storage tank (5) by mud forwarder (11) with dewatered sludge, sludge incineration device (6) is linked in the outlet of dewatered sludge storage tank (5), sludge incineration device (6) top is communicated with the hot gas inlet of steel ball well heater (3) and steel ball forwarder (4), the hot gas outlet of steel ball well heater (3) and steel ball forwarder (4) is connected to the gas inlet of Mixed Gas Condensation resorber (7), Mixed Gas Condensation resorber (7) top is provided with resorption gas device (13), and resorption gas device (13) output channel is linked sludge dryer (2).
2. outfit for municipal sludge thermal oxidation treatment according to claim 1 is characterized in that: described sifter (10) also has a steel ball outlet (14), and the steel ball inlet (15) of described steel ball outlet (14) and steel ball forwarder (4) bottom joins.
3. outfit for municipal sludge thermal oxidation treatment according to claim 1 is characterized in that: the outlet of described dewatered sludge storage tank (5) also is connected with gas blower (16).
4. outfit for municipal sludge thermal oxidation treatment according to claim 1, it is characterized in that: described sludge incineration device (6) is provided with air-returning device (12), and air-returning device (12) is communicated with the combustion chamber of sludge incineration device (6) with the preheating chamber of sludge incineration device (6).
5. outfit for municipal sludge thermal oxidation treatment according to claim 1 is characterized in that: the Sewage outlet of described Mixed Gas Condensation resorber (7) is communicated with the circulating water device (8) of sewage work by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100620662A CN101885574A (en) | 2009-05-14 | 2009-05-14 | Outfit for municipal sludge thermal oxidation treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100620662A CN101885574A (en) | 2009-05-14 | 2009-05-14 | Outfit for municipal sludge thermal oxidation treatment |
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| CN101885574A true CN101885574A (en) | 2010-11-17 |
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| CN2009100620662A Pending CN101885574A (en) | 2009-05-14 | 2009-05-14 | Outfit for municipal sludge thermal oxidation treatment |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104129898A (en) * | 2014-06-28 | 2014-11-05 | 浙江绿治污泥处理技术有限公司 | Solar constant-temperature-drying harmless sludge treatment device and method |
| CN105114963A (en) * | 2015-09-30 | 2015-12-02 | 上海市城市建设设计研究总院 | Conveying system for dried sludge |
| CN105157042A (en) * | 2015-09-30 | 2015-12-16 | 上海市城市建设设计研究总院 | Conveying system and processing method for powder granule sludge |
| CN105180176A (en) * | 2015-09-30 | 2015-12-23 | 上海市城市建设设计研究总院 | Dried sludge conveying system with wind distribution branch and treatment method |
| CN109293194A (en) * | 2018-09-29 | 2019-02-01 | 宝山钢铁股份有限公司 | A kind of method and device of the inorganic sludge of the direct desiccation of drum process |
| CN110330211A (en) * | 2018-03-29 | 2019-10-15 | 宝山钢铁股份有限公司 | A kind of high-temperature steel slag couples the technique and device of desiccation with sludge |
| WO2022022161A1 (en) * | 2020-07-31 | 2022-02-03 | 宝山钢铁股份有限公司 | Integrated drying process and device for dry granulated slag and sludge |
-
2009
- 2009-05-14 CN CN2009100620662A patent/CN101885574A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104129898A (en) * | 2014-06-28 | 2014-11-05 | 浙江绿治污泥处理技术有限公司 | Solar constant-temperature-drying harmless sludge treatment device and method |
| CN104129898B (en) * | 2014-06-28 | 2016-06-08 | 浙江绿治污泥处理技术有限公司 | Solar energy mud constant temperature mummification harmless treatment device and method |
| CN105114963A (en) * | 2015-09-30 | 2015-12-02 | 上海市城市建设设计研究总院 | Conveying system for dried sludge |
| CN105157042A (en) * | 2015-09-30 | 2015-12-16 | 上海市城市建设设计研究总院 | Conveying system and processing method for powder granule sludge |
| CN105180176A (en) * | 2015-09-30 | 2015-12-23 | 上海市城市建设设计研究总院 | Dried sludge conveying system with wind distribution branch and treatment method |
| CN110330211A (en) * | 2018-03-29 | 2019-10-15 | 宝山钢铁股份有限公司 | A kind of high-temperature steel slag couples the technique and device of desiccation with sludge |
| CN109293194A (en) * | 2018-09-29 | 2019-02-01 | 宝山钢铁股份有限公司 | A kind of method and device of the inorganic sludge of the direct desiccation of drum process |
| TWI815980B (en) * | 2018-09-29 | 2023-09-21 | 中國商寶山鋼鐵股份有限公司 | Method for drying inorganic sludge using molten slag, method and device for directly drying inorganic sludge using drum method |
| US11891318B2 (en) | 2018-09-29 | 2024-02-06 | Baoshan Iron & Steel Co., Ltd. | Method and apparatus for direct drying of inorganic sludge with drum drawing process |
| WO2022022161A1 (en) * | 2020-07-31 | 2022-02-03 | 宝山钢铁股份有限公司 | Integrated drying process and device for dry granulated slag and sludge |
| CN114058747A (en) * | 2020-07-31 | 2022-02-18 | 宝山钢铁股份有限公司 | Dry-type granulated slag and sludge coupling drying process and device |
| CN114058747B (en) * | 2020-07-31 | 2022-12-16 | 宝山钢铁股份有限公司 | Dry-type granulated slag and sludge coupling drying process and device |
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Open date: 20101117 |