CN201852110U - Sludge low-temperature themolysis incineration system - Google Patents
Sludge low-temperature themolysis incineration system Download PDFInfo
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- CN201852110U CN201852110U CN2010202521640U CN201020252164U CN201852110U CN 201852110 U CN201852110 U CN 201852110U CN 2010202521640 U CN2010202521640 U CN 2010202521640U CN 201020252164 U CN201020252164 U CN 201020252164U CN 201852110 U CN201852110 U CN 201852110U
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- sludge
- low temperature
- themolysis
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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
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Abstract
The utility model discloses a sludge low-temperature themolysis incineration system which comprises a sludge hopper, a dryer, a spiral conveyer, a low-temperature themolysis reactor, an extrusion forming machine, an incineration boiler and a draught fan, wherein the low-temperature themolysis reactor conveys the sludge outputted by the sludge hopper to a feed port of the dryer, the low-temperature themolysis reactor is connected with a discharge port below the dryer, the extrusion forming machine is connected with a discharge port of the low-temperature themolysis reactor, the incineration boiler is connected with the extrusion forming machine through a conveyer and provided with an afterheat boiler, and the draught fan is connected with the afterheat boiler; the upper part of the afterheat boiler is connected with the drier and the low-temperature themolysis reactor respectively through afterheat input pipelines. Volume of sludge entering the incineration boiler is reduced through drying and low-temperature themolysis treatment on dewatered sludge so as to reduce the size of the incineration boiler and decrease the investment cost; the cost for construction, installation, running and maintenance of the incineration system is greatly reduced; as equipment investment is reduced, the sludge low-temperature themolysis incineration system is convenient for sludge dispersing and processing way, and has broad suitability.
Description
Technical field
The utility model relates to the environmental protection equipment of Treatment of Sludge, especially relates to the environmental protection equipment that a kind of sludge incineration is handled.
Background technology
Along with improving constantly of municipal sewage treatment ability and wastewater treatment rate, sludge of sewage treatment plants output also increases thereupon, shows the secondary pollution problem day that mud causes outstanding.Treatment of Sludge mode in the world mainly contains multiple modes such as sanitary landfills, biological compost, fermentation methane generating again, anhydration and incineration.Wherein, anhydration and incineration technology is most widely used.At first, burning can reduce the volume of mud in a large number, and with respect to the mud of mechanical dehydration, final incineration ashes volume only is equivalent to 10% of initial product.The second, burn and also can kill all pathogen, all organic matters all can farthest be decomposed in combustion process, and pathogen and bacterium are no exception.By high-temperature process, in combustion residue, almost there is not pathogen to exist.In addition, burning can also solve the stench problem of mud.Have outstanding advantage though conventional burning method is compared with other method, along with the use of burning process, its existing some problem also day by day comes out, and promptly has following open defect on the other hand:
1, the characteristics that sludge incinerator is an adaptation moisture percentage in sewage sludge height, calorific value is low, so the incinerator volume is big, cost is high, investment cost is big;
2, incinerator system complexity, operation, maintenance cost height;
3, because equipment investment is big, be applicable to that mud focuses on pattern, adaptability is wideless.
Summary of the invention
The utility model is in order to solve the technical problem that equipment complexity, big energy-consuming, maintenance are big, efficient is low and cost is high that existing sludge anhydration burning technology exists, and proposes a kind ofly not need pulping equipment, the operation troubles rate is low, production efficiency is high, the system for pyrolyzing and burning sludge at low temperature of simple and reliable and investment saving.
For solving the problems of the technologies described above, the system for pyrolyzing and burning sludge at low temperature that the utility model proposes, it comprise mud hopper, drying machine, with the mud of mud hopper output be delivered to the conveying worm of drying machine charging aperture, the low temperature pyrogenation reactor that is connected with discharging opening below the drying machine, the single lead screw ex truding briquetting machine that is connected with this low temperature pyrogenation reactor discharging opening, the incinerator that has waste heat boiler that is connected with single lead screw ex truding briquetting machine by a conveyer, the air-introduced machine that is connected with waste heat boiler.The top of described waste heat boiler is connected with the low temperature pyrogenation reactor with described drying machine respectively by the waste heat input channel.
Preferably, described drying machine is connected with the bottom of described waste heat boiler by the waste heat output channel respectively with the low temperature pyrogenation reactor.
Wherein, described waste heat boiler adopts organic heat carrier to make thermal medium.
Described organic heat carrier is a conduction oil.
Be provided with agitating device in the described low temperature pyrogenation reactor.
The sludge at low temperature pyrolytic technique is to utilize the mud organic matter under heating condition pyrolytic reaction to take place, and is converted into the superior oil of combustion characteristics, charcoal and combustible gas through this process sludge part, and the required energy of process is provided by the fuel combustion that produces.The energy of charcoal and oil has constituted the energy output of pyrolysis in the thermal decomposition product, and wherein 200~300 ℃ is the maximum reaction temperature zone of energy output.
The utility model advantage compared with the prior art is:
1, dewatered sludge is handled through mummification and low temperature pyrogenation, reduces moisture percentage in sewage sludge and volume, thereby reduces the amount that mud enters incinerator, so that the incinerator volume reduces the investment cost reduction;
2, pyrolysis temperature is controlled between 200~300 ℃, belongs to the low temperature pyrogenation reaction, reduces the generation and the loss of gasification product, helps system's energy balance and reduces the interpolation auxiliary fuel;
3, charing mud forms solid shape through single lead screw ex truding briquetting machine, helps increasing the porosity between the charing mud grain (piece), helps the abundant and smooth combustion of charing mud.
4, realization mud is handled on the spot, reduces the secondary pollution that causes in mud cost of transportation and the transportation;
5, simple and reliable, investment save and operating cost low.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described further, wherein:
Fig. 1 is the schematic block diagram of the utility model embodiment.
The specific embodiment
Fig. 1 shows the FB(flow block) of the utility model embodiment, described system for pyrolyzing and burning sludge at low temperature, it comprises mud hopper 01, drying machine 03, the mud of mud hopper 01 output is delivered to the conveying worm 02 of drying machine 03 charging aperture, the low temperature pyrogenation reactor 05 that has agitating device that is connected with the discharging opening of drying machine 03 below, the single lead screw ex truding briquetting machine 06 that is connected with low temperature pyrogenation reactor discharging opening, the incinerator that has waste heat boiler 04 08 that is connected with single lead screw ex truding briquetting machine by a conveyer 07, the air-introduced machine 09 that is connected with waste heat boiler, the top of waste heat boiler 04 is connected with low temperature pyrogenation reactor 05 with drying machine 03 respectively by waste heat input channel 10, and drying machine 03 also is connected by the bottom of waste heat output channel 11 with waste heat boiler 04 respectively with low temperature pyrogenation reactor 5.Waste heat boiler 04 adopts organic heat carrier to make thermal medium, and common organic heat carrier can adopt various conduction oils.
The workflow of native system is as follows:
At first, to deliver to mud cast hopper 01 through pretreated dewatered sludge, mud enters conveying worm 02 and by it mud is delivered in the drying machine 03, mud is dried to about 20~50% backs of moisture content and discharges from drying machine 03 discharging opening, and dried mud relies on deadweight to fall into low temperature pyrogenation reactor 05.Enter single lead screw ex truding briquetting machine 06 through mud through oil, the carbon mixture that the low temperature pyrogenation reactor produces the pyrolyzing sludge process, make the high heating value of definite shape and size, the carbonizing production of low moisture content.This carbonizing production is delivered to incinerator 08 by conveyer 07 and is burned, and the temperature of incinerator burner hearth is higher than 850 ℃, guarantees in the carbonizing production that contained harmful substance is thoroughly decomposed and carbonizing production is thoroughly burned.The heat that burning process produces is reclaimed by waste heat boiler 04, and sends into drying machine 03 and low temperature pyrogenation reactor 05 respectively by waste heat input channel 10, serves as sludge drying and low temperature pyrogenation process institute calorific requirement, makes system keep thermal balance.And can also send waste heat boiler 04 back to by waste heat output channel 11 respectively through the amount of residual heat will after drying machine 03 and 05 utilization of low temperature pyrogenation reactor, recycling.Slag and flying dust that carbonizing production is produced after fully burning can be done landfill disposal or comprehensive utilization.Flue gas is sent into flue gas processing device through air-introduced machine 09, handles back up to standard discharging.
Described waste heat boiler 04 adopts organic heat carrier to make thermal medium.Compare as thermal medium with the existing saturated vapor that adopts, the organic heat carrier temperature is easy to regulate, and temperature improve the time need not to increase the equipment operating pressure, can reduce the device fabrication cost.Organic heat carrier is heated to 200~300 ℃, is delivered to respectively to be used for dry and pyrolysis mud in drying machine 03 and the low temperature pyrogenation reactor 5.General sludge drying adopts saturated vapor to make thermal medium, and vapor (steam) temperature is about 160 ℃, can be 300 ℃ and organic heat carrier temperature of the present utility model is the highest, by improving the mummification temperature heat transfer power is increased, and improves efficiency of utilization.
The organic heat carrier that the pyrolytic reaction heat of low temperature pyrogenation reactor 05 is carried by waste heat boiler 04 is supplied with, and reaction temperature is controlled at 200~300 ℃, belongs to the low temperature pyrogenation reaction.In this temperature range, thermal decomposition product is based on charcoal and oil, and the amount of gasification product is few, can reduce energy and run off with the gaseous material form, is the maximum reaction temperature zone of energy output.The agitating device that is provided with in the low temperature pyrogenation reactor 05 makes pyrolytic reaction more abundant.
Dewatered sludge of the present utility model is handled through mummification and low temperature pyrogenation, reduces moisture percentage in sewage sludge and volume, thereby reduces the amount that mud enters incinerator, so that the incinerator volume reduces the investment cost reduction; Incinerator system is built peace, and operation, maintenance cost reduce greatly; Because equipment investment reduces, and is convenient to mud dispersion treatment pattern, adaptability is wide.
Claims (5)
1. system for pyrolyzing and burning sludge at low temperature, it is characterized in that: comprise mud hopper (01), drying machine (03), the mud of mud hopper (01) output is delivered to the conveying worm (02) of drying machine (03) charging aperture, the low temperature pyrogenation reactor (05) that is connected with the discharging opening of drying machine (03) below, the single lead screw ex truding briquetting machine (06) that is connected with low temperature pyrogenation reactor discharging opening, the incinerator that has waste heat boiler (04) (08) that is connected with single lead screw ex truding briquetting machine by a conveyer (07), the air-introduced machine that is connected with waste heat boiler (09), the top of described waste heat boiler (04) is connected with low temperature pyrogenation reactor (05) with described drying machine (03) respectively by waste heat input channel (10).
2. system for pyrolyzing and burning sludge at low temperature as claimed in claim 1 is characterized in that: described drying machine (03) is connected by the bottom of waste heat output channel (11) with described waste heat boiler (04) respectively with low temperature pyrogenation reactor (05).
3. system for pyrolyzing and burning sludge at low temperature as claimed in claim 2 is characterized in that: described waste heat boiler (04) adopts organic heat carrier to make thermal medium.
4. system for pyrolyzing and burning sludge at low temperature as claimed in claim 3 is characterized in that: described organic heat carrier is a conduction oil.
5. system for pyrolyzing and burning sludge at low temperature as claimed in claim 4 is characterized in that: be provided with agitating device in the described low temperature pyrogenation reactor (05).
Priority Applications (1)
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CN2010202521640U CN201852110U (en) | 2010-07-07 | 2010-07-07 | Sludge low-temperature themolysis incineration system |
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CN2010202521640U CN201852110U (en) | 2010-07-07 | 2010-07-07 | Sludge low-temperature themolysis incineration system |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101871649A (en) * | 2010-07-07 | 2010-10-27 | 广东长青(集团)股份有限公司 | System for pyrolyzing and burning sludge at low temperature |
CN104728849A (en) * | 2013-12-20 | 2015-06-24 | 株式会社池田工业 | Sludge treatment system |
CN107353916A (en) * | 2017-09-08 | 2017-11-17 | 无锡绿麦环保科技有限公司 | The recycling treatment system of afforestation rubbish and sludge |
CN107384450A (en) * | 2017-09-08 | 2017-11-24 | 无锡绿麦环保科技有限公司 | The recycling safe disposal system of garden garbage and sludge |
CN109020132A (en) * | 2018-08-22 | 2018-12-18 | 李兴 | A kind of pyrolyzing sludge drying process system and method |
-
2010
- 2010-07-07 CN CN2010202521640U patent/CN201852110U/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101871649A (en) * | 2010-07-07 | 2010-10-27 | 广东长青(集团)股份有限公司 | System for pyrolyzing and burning sludge at low temperature |
CN104728849A (en) * | 2013-12-20 | 2015-06-24 | 株式会社池田工业 | Sludge treatment system |
CN107353916A (en) * | 2017-09-08 | 2017-11-17 | 无锡绿麦环保科技有限公司 | The recycling treatment system of afforestation rubbish and sludge |
CN107384450A (en) * | 2017-09-08 | 2017-11-24 | 无锡绿麦环保科技有限公司 | The recycling safe disposal system of garden garbage and sludge |
CN109020132A (en) * | 2018-08-22 | 2018-12-18 | 李兴 | A kind of pyrolyzing sludge drying process system and method |
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Granted publication date: 20110601 |