CN103145307A - High temperature carbonization system of sludge and carbonization process - Google Patents
High temperature carbonization system of sludge and carbonization process Download PDFInfo
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- CN103145307A CN103145307A CN2013101126178A CN201310112617A CN103145307A CN 103145307 A CN103145307 A CN 103145307A CN 2013101126178 A CN2013101126178 A CN 2013101126178A CN 201310112617 A CN201310112617 A CN 201310112617A CN 103145307 A CN103145307 A CN 103145307A
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Abstract
The invention provides a high temperature carbonization system of sludge and a carbonization process. The high temperature carbonization system of sludge comprises a dewatered sludge supply unit, a dewatered sludge drying unit, a dried sludge carbonization unit, a thermal cycle exchange unit, and a carbonization heating furnace, wherein the dewatered sludge drying unit comprises a dewatered sludge dryer; the dried sludge carbonization unit comprises a sludge carbonization furnace; the carbonization heating furnace is used for supplying the heating gas to the dewatered sludge dryer and used for supplying the heating gas to the sludge carbonization furnace; the thermal cycle exchange unit is used for conveying the heating gas discharged by the dewatered sludge drying unit to the carbonization heating furnace to burn and deodorize after heat exchange; and the carbonization heating furnace is used for burning and deodorizing the distilled gas generated by the sludge carbonization furnace by carbonization. By adopting the carbonization system, utilization of the carbonized distilled gas generated by the sludge in drying and carbonizing processes is combined with high-temperature deodorizing overall treatment of the waste gas; the energy consumption is reduced; and the equipment configuration is also simplified.
Description
Technical field
The present invention relates to chemical field, relate in particular to a kind of extensive sludge high temperature carbonization system and carbonization technique that municipal sludge is processed that be adapted to.
Background technology
By the end of the year 2011, whole nation accumulative total is built up 3135 of urban wastewater treatment firms, and sewage treatment capacity reached for 1.36 billion cubic meter/days.Wherein, the town sewage processing project of building reaches 1360, and the general design ability is 2900 ten thousand stere/days approximately.Accumulative total 393.13 billion cubic meters of disposing of sewage in 2011 draw thus, and China's sludge yield in 2011 is 5,030,000 tons.Calculate according to this, estimate to the end of the year 2015, near 7,770,000 tons of the sludge yield of China.
The mud that sewage work produces is that water content is at 75～99% solid or liquid shape materials that do not wait.Solids component wherein mainly is comprised of organic relic, bacterium thalline, inorganic particle, colloid and the institute's with medicament of flocculating etc., a kind of take organic composition as main, the mixture of complicated components wherein also includes organic matter, nitrogen (N), phosphorus (P), potassium (K) and the various trace element of potential utility value.If have sanitary sewage in sewage, and include trade effluent, not only contain pathogenic bacteria, virus and parasite (ovum) in mud, also a series of pollution substances such as poisonous and hazardous organic substance of heavy metal and difficult degradation may be arranged, it is the topmost potential secondary pollution source that sewage treatment process forms.
Domestic Sewage Plant is generally larger, and day is disposed of sewage ability between 50,000 tons-300,000 tons, produces 5 tons of wet sludge quantities according to every ten thousand tons of sewage and calculates (water ratio 80%), and mud day, generation was at the 25-150 ton.What carried out ﹠ Mud at present is mainly big and medium-sized cities, and the general mode of building regional centralized sludge disposal center that adopts, the mud of several Sewage Plant is focused on, and the wet mud scale of day processing is generally about the 100-400 ton, and indivedual scales even reach nearly kiloton.Yet the mud carbonizing apparatus of present domestic introduction is subject to structural limitations, and maximum processing capability is generally day to be processed in 100 tons, wet mud, can't adapt to the demestic user mud is adopted concentrate, the extensive demand of disposing.
At present, the sludge disposal of China is main or take agricultural use and sanitary landfill as main, both account for respectively 46.43% and 35.71 of sludge disposal total amount.Yet, in the existing sewage treatment facility in the whole nation, include being less than it and processing 1/4 of total amount of mud stabilizing treatment facility.The subject matter that mud brings has: Organic pollutants and heavy metal contamination etc.And Sludge landfill also affects the landfill of domestic waste, and it not only takies a large amount of effective soils, also can cause serious pollution to ground surface environment and groundwater resource, and pollutes soil structure and crop growth.Hence one can see that, and the problem that solves bad sludge disposal just can not fundamentally realize the improvement of water surrounding, causes serious problems will for China's urban ecological environment.
In sum, sludge problem how to deal carefully with, dispose a large amount of stackings has become domestic most sewage works urgent problem, is also the common topic of paying close attention in the whole world.
Summary of the invention
The technical problem to be solved in the present invention is: extensive sludge high temperature carbonization system and the carbonization technique that municipal sludge is processed that be adapted to that a kind of minimizing, innoxious, stabilization, resource utilization are provided.
The present invention solves the problems of the technologies described above the technical scheme of taking to be:
the sludge high temperature carbonization system, it is characterized in that, it comprises the dewatered sludge feed unit, the dewatered sludge mummification unit that the dewatered sludge that described dewatered sludge feed unit is provided carries out mummification, mud after mummification is carried out the dewatered sludge carbonation unit of carbonization, the thermal cycling crosspoint, and carbonization process furnace, described dewatered sludge mummification unit comprises the dewatered sludge drying machine, described dewatered sludge carbonation unit comprises the mud carbide furnace, described carbonization process furnace is used for the supply heated air to described dewatered sludge drying machine with sludge-drying and for supplying with heated air to described mud carbide furnace so that mud heats carbonization, described thermal cycling crosspoint is used for heated air that described dewatered sludge mummification unit is discharged through being sent to the deodorization of burning of described carbonization process furnace after heat exchange, described carbonization process furnace is used for the deodorization of burning of carbonization produces to described mud carbide furnace carbonizing gas.
In such scheme, described dewatered sludge mummification unit also comprises tornado dust collector, dewatered sludge scraper conveyor, reaches the dewatered sludge storage warehouse, be transported in described dewatered sludge storage warehouse via described dewatered sludge scraper conveyor through the dried dewatered sludge of described dewatered sludge drying machine and store, the heated air that described dewatered sludge drying machine is discharged enters described thermal cycling crosspoint through after tornado dust collector.
In such scheme, described dewatered sludge carbonation unit also comprises dewatered sludge worm conveyor and carbide conveying and storing apparatus, described dewatered sludge worm conveyor is used for the dewatered sludge of described dewatered sludge mummification unit output is delivered to described mud carbide furnace, and described carbide conveying and storing apparatus is used for the carbide that the mud carbide furnace forms is carried and stored.
in such scheme, the heated air that described thermal cycling crosspoint also is used for described mud carbide furnace is discharged is discharged through after heat exchange, described thermal cycling crosspoint comprises recirculation blower, induced draft fan, gas blower, the one-level heat exchanger, and two-stage heat exchanger, the heated air that discharge described dewatered sludge mummification unit is sent to by described recirculation blower and is resent to the deodorization of burning of described carbonization process furnace after the heat exchange of described one-level heat exchanger, after the heated air described one-level heat exchanger of process and two-stage heat exchanger heat exchange that described mud carbide furnace is discharged, emptying under the guiding of described induced draft fan again, described gas blower enters described carbonization process furnace after being used for blasting air and air fully being heated by described two-stage heat exchanger.
In such scheme, described mud carbide furnace comprises rotatable carbonization kettle, driving mechanism, be arranged on a plurality of flights of described carbonization inner wall of kettle, be arranged on described carbonization kettle mud entrance a plurality of flow deflectors, be looped around the urceolus of described carbonization kettle periphery, described carbonization kettle is used for the dewatered sludge that the described dewatered sludge mummification of carbonization unit transports, described driving mechanism is used for driving described carbonization kettle rotation, thereby described urceolus is used for holding heating medium to heat the dewatered sludge in the described carbonization kettle of described carbonization kettle indirect heating.
In such scheme, described urceolus comprises independently heating chamber of multistage, and arrange along the axial direction due of described carbonization kettle described multistage heating chamber, and every section heating chamber is provided with hot blast import and hot-blast outlet.
In such scheme, described mud carbide furnace also includes temperature control unit, described temperature control unit comprises at least one first temperature control component and a plurality of the second temperature control component, described a plurality of the first temperature control component is for detection of the temperature of described carbonization kettle in carbonization mud process, and driving mechanism according to described temperature regulation drives the rotating speed of described carbonization kettle rotation, described a plurality of the second temperature control component is for detection of the temperature of every section heating chamber, and air output and the inlet temperature of hot blast import according to described temperature regulation.
The sludge high temperature carbonization technique, it comprises the following steps:
1) dewatered sludge is delivered in the dewatered sludge drying machine;
2) the carbonization process furnace is supplied with heated air and is directly contacted with dewatered sludge in the dewatered sludge drying machine, moisture percentage in sewage sludge is dropped to 30%, the heated air of discharging from the dewatered sludge drying machine is undertaken entering carbonization process furnace burning deodorization after heat exchange by the thermal cycling crosspoint after cyclone dust removal;
3) the dried dewatered sludge of dewatered sludge drying machine is delivered in the mud carbide furnace, the carbonization process furnace is supplied with heated air to the mud carbide furnace, dewatered sludge in the mud carbide furnace through high temperature, the anaerobic treatment of 600 ~ 800 ℃, separate out that most moisture and flammable minute component are final forms stable carbonized product, the carbonizing gas that in the mud carbide furnace, carbonization produces exports the deodorization of burning of carbonization process furnace to.
In such scheme, described mud carbide furnace comprises rotatable carbonization kettle, driving mechanism, be arranged on a plurality of flights of described carbonization inner wall of kettle, be arranged on described carbonization kettle mud entrance a plurality of flow deflectors, be looped around the urceolus of described carbonization kettle periphery, described carbonization kettle is used for the dewatered sludge that the described dewatered sludge mummification of carbonization unit transports, described driving mechanism is used for driving described carbonization kettle rotation, thereby described urceolus is used for holding heating medium to heat the dewatered sludge in the described carbonization kettle of described carbonization kettle indirect heating.
In such scheme, described urceolus comprises independently heating chamber of multistage, and arrange along the axial direction due of described carbonization kettle described multistage heating chamber, and every section heating chamber is provided with hot blast import and hot-blast outlet.
Compared with prior art, the technique effect obtained of the present invention is:
1, this sludge high temperature carbonization system can take full advantage of the rear heat that forms of carbonizing gas burning that dewatered sludge produces in mummification and carbonization process, is used for sludge drying and carbonization process.This mud carbonization system is recycled heat energy, thereby reaches energy-conservation purpose.
2, this mud carbonization system carries out carbonization to dewatered sludge, thus volume and the weight of a large amount of reduce muds of energy, and the carbonated product particle odorless that produces in carbonization process.Simultaneously, the discharging of the waste gas that produces in treating processes of this mud carbonization system and waste water reaches urban wastewater treatment firm sludge disposal-burn separately with the relevant regulations in the shale standard.And mud is after carbonizing treatment, and heavy metal ion is cured in the carbide product, thereby becomes stable, and environment is safe from harm.And in the carbonization process of dewatered sludge, heavy metal relative is stable, and the Leaching Heavy Metals of mud carbide reaches " urban wastewater treatment firm sludge disposal-burn separately and use shale " emission limit regulation (CJ-T290-2008).Further, the product after the dewatered sludge carbonization has the characteristic similar with charcoal, can be used as soil improvement and afforestation etc.
3, this mud carbonization system can be realized the mass-producing processing of dewatered sludge day output more than 100 tons.
4, the utilization of this mud carbonization system carbonization carbonizing gas that mud is produced in mummification and carbonization process is processed with the high temperature deodorization integration of waste gas and is combined, when the carbonizing treatment for dewatered sludge provides energy, waste gas being carried out the high temperature deodorization processes, reduced this mud carbonization system energy consumption, and simplified the equipment configuration of this mud carbonization system, made the operation operation of system easier, reliable.
5, this mud carbonization system can be according to the finished product demand, can be to the mud carbonizing treatment under 600 degrees centigrade to 800 degrees centigrade.
6, this mud carbonization system uses the multistage heating chamber that the carbonization kettle is heated, and can guarantee the hot environment of carbonization kettle and make more uniform temperature in the carbonization kettle, is conducive to the stable formation of carbide.
Description of drawings
The structural representation of the sludge high temperature carbonization system that Fig. 1 provides for the embodiment of the present invention.
Fig. 2 is the structural representation of the outer heat revolution indirect sludge carbide furnace in Fig. 1.
in figure: 1-dewatered sludge storage warehouse, 2-dewatered sludge worm conveyor, 3-mud spiral pump, 4-dewatered sludge drying machine, the 5-tornado dust collector, 6-dewatered sludge scraper conveyor, 7-dewatered sludge storage warehouse, 8-dewatered sludge worm conveyor, the outer heat revolution of 9-indirect sludge carbide furnace, 10-water-cooling spiral transfer roller, 11-carbide scraper conveyor, 12-carbide storage warehouse, 13-carbide worm conveyor, 14-carbonization process furnace, 15-replenishes energy unit, the 16-recirculation blower, the 17-gas blower, the 18-induced draft fan, 19-one-level heat exchanger, the 20-two-stage heat exchanger, 21-carbonization kettle, the 22-urceolus, the 23-flight, the 24-flow deflector, the 25-heating chamber, the import of 26-hot blast, the 27-hot-blast outlet, the 28-thermal insulation layer, the 29-drive-motor, the 30-driving gear, the 31-roller, the 32-support roller, 33-the first temperature control component, 34-the second temperature control component, the 35-sealing element, 36-sealing water-cooled element, the outlet of 37-carbonizing gas, the outlet of 38-carbide.
Embodiment
The invention will be further described below in conjunction with drawings and Examples, and certain following embodiment should not be construed as limitation of the present invention.
As depicted in figs. 1 and 2, a kind of sludge high temperature carbonization system that it provides for the embodiment of the present invention, it comprises that dewatered sludge feed unit, the dewatered sludge that the dewatered sludge feed unit is provided carry out the dewatered sludge mummification unit of mummification, dewatered sludge carbonation unit, thermal cycling crosspoint and the carbonization process furnace 14 that the mud after mummification is carried out carbonization.
Wherein, this dewatered sludge feed unit comprises dewatered sludge storage warehouse 1, dewatered sludge worm conveyor 2 and mud spiral pump 3.
This dewatered sludge mummification unit comprises dewatered sludge drying machine 4, tornado dust collector 5, dewatered sludge scraper conveyor 6, and dewatered sludge storage warehouse 7.Adopt cylinder convection current direct contact type drying machine to carry out drying to mud in drying process.
This dewatered sludge carbonation unit comprises dewatered sludge worm conveyor 8, outer heat revolution indirect sludge carbide furnace 9, reaches the carbide conveying and storing apparatus.In the present embodiment, this carbide conveying and storing apparatus comprises water-cooling spiral transfer roller 10, carbide scraper conveyor 11, carbide storage warehouse 12, reaches carbide worm conveyor 13.
This sludge high temperature carbonization system also comprises the additional energy unit 15 of replenishing the energy for to this carbonization process furnace 14.
This thermal cycling crosspoint comprises recirculation blower 16, gas blower 17, induced draft fan 18, one-level heat exchanger 19, reaches two-stage heat exchanger 20.
Utilize the carbonization technique flow process of this sludge high temperature carbonization system as follows:
1) dewatered sludge is stored in dewatered sludge storage warehouse 1, is transported in dewatered sludge drying machine 4 through dewatered sludge worm conveyor 2 and mud spiral pump 3;
2) carbonization process furnace 14 is supplied with heated air and is directly contacted with dewatered sludge in dewatered sludge drying machine 4, flue gas is taken away the most of moisture in dewatered sludge, make the water ratio of dewatered sludge drop to 30% left and right by 80%, the heated air of discharging from dewatered sludge drying machine 4 is resent to the 14 burning deodorizations of carbonization process furnace after being sent to 19 heat exchange of one-level heat exchanger by recirculation blower 16 after tornado dust collector 5 dedustings;
3) the dried dewatered sludge of dewatered sludge drying machine 4 is transported to storage in dewatered sludge storage warehouse 7 through dewatered sludge scraper conveyor 6, dewatered sludge worm conveyor 8 is controlled outside heat revolution indirect sludge carbide furnace 9 supply dewatered sludges from dewatered sludge storage warehouse 7 by interlock, carbonization process furnace 14 is supplied with heated air to outer heat revolution indirect sludge carbide furnace 9, dewatered sludge outside in heat revolution indirect sludge carbide furnace 9 through the high temperature of 600 ~ 800 ℃, anaerobic treatment, separate out most moisture and the flammable minute stable carbonized product of the final formation of component, carbonized product is cooling and be transported in carbide storage warehouse 12 and store through water-cooling spiral transfer roller 10 and carbide scraper conveyor 11 respectively, and through 13 outputs of carbide worm conveyor, pack at last and transport.
In the present embodiment, this outer heat revolution indirect sludge carbide furnace 9 comprises rotatable carbonization kettle 21, driving mechanism, is arranged on a plurality of flights 23 of carbonization kettle 21 inwalls, a plurality of flow deflectors 24 that are arranged on carbonization kettle 21 mud entrances, the urceolus 22 that is looped around carbonization kettle 21 peripheries, and temperature control unit.Carbonization kettle 21 is used for the dewatered sludge that carbonization dewatered sludge mummification unit transports.Driving mechanism is used for driving 21 rotations of carbonization kettle.Thereby urceolus 22 is used for holding heating medium with the dewatered sludge in heating carbonization kettle 21 indirect heating carbonization kettlies 21.
In the present embodiment, urceolus 22 comprises independently heating chamber 25 of multistage.Arrange along the axial direction due of carbonization kettle 21 multistage heating chamber 25, and it provides heat during for carbonization mud.Every section heating chamber 25 is provided with hot blast import 26 and hot-blast outlet 27.The outside of every section heating chamber 25 is provided with thermal insulation layer 28, be used for to reduce the loss of this multistage heating chamber 25 energy.
In the present embodiment, driving mechanism comprises drive-motor 29 and driving gear 30.Drive-motor 29 drives driving gear 30 and makes 21 rotations of carbonization kettle.This drive-motor 29 is adjustable speed motor.For the stability that guarantees 21 rotations of carbonization kettle exists, be provided with roller 31 and support roller 32 at the opposite side of drive-motor 29.
This temperature control unit comprises at least one first temperature control component 33 and a plurality of the second temperature control component 34.At least one first temperature control component 33 is for detection of the temperature of carbonization kettle 21 in carbonization mud process, and drives the rotating speed of carbonization kettle 21 rotations according to described temperature regulation driving mechanism, to regulate the carbonizing treatment time.Each second temperature control component 33 is for detection of the temperature of every section heating chamber 25, and according to air output and the inlet temperature of described temperature regulation hot blast import 26.
The sealing water-cooled element 36 that this dewatered sludge carbonation unit also comprises sealing element 35 and is used for sealing element 35 is lowered the temperature.Sealing element 35 is arranged on two ends of multistage heating chamber 25, is used for reducing the spillage of the high-temperature gas that dewatered sludge produces at carbonization process, thereby reduces the loss of energy.Sealing water-cooled element 36 can reduce the temperature of sealing element 35, and guarantees the superperformance of sealing element 35.
Should be specially by the outer hot carbonization process that turns round 9 pairs of dewatered sludges of indirect sludge carbide furnace: dewatered sludge is delivered to rotating carbonization kettle 21.Under carbonization kettle 21 actings in conjunction of carbonization kettle 21 internal diversion plates 24 and the inner flight 23 of carbonization kettle and rotation, dewatered sludge advances to the afterbody of carbonization kettle 21.In progradation, heat of high temperature by the 21 outer wall transmission of carbonization kettle constantly heats, in inner high temperature, the anaerobic environment that forms 600 ~ 800 degrees centigrade of carbonization kettle 21, dewatered sludge is separated out most moisture, the stable carbonized product of the final formation of the flammable component of grading in this process.The components such as flammable minute of separating out in carbonization kettle 21 inside of dewatered sludge, moisture export 37 by carbonizing gas and are expelled to heating carbide furnace 14 to carry out the processing such as deodorization burning.The carbide that forms in carbonization kettle 21 is through carbide outlet 38 outputs.Be understandable that, the present invention can select different temperature ranges to carry out carbonization for the mud of heterogeneity in the temperature range of 600 ~ 800 ℃.
In the present embodiment, the heated air of carbonization process furnace 14 output by each independently 25 pairs of rotating carbonization kettlies 21 of heating chamber heat, it does not directly contact with dewatered sludge and mud carbide, thereby has guaranteed the harmless odorless of emission gases.Gas after heating is completed is discharged from outer heat revolution indirect sludge carbide furnace 9, after one-level heat exchanger 19 and two-stage heat exchanger 20 twice heat exchange, and discharging after temperature is down to below 200 ℃.Simultaneously, the air that gas blower 17 blasts fully heats by two-stage heat exchanger 20, then enters carbonization process furnace 14, thinks that system replenishes required fresh air and takes full advantage of tail gas heat quantity, thereby take full advantage of the waste heat of this mud carbonization system, reached energy-conservation purpose.Further, when the energy deficiency of this carbonization process furnace 14, carry out the energy by this additional energy unit 15 and replenish.
The carbonizing gas that in outer heat revolution indirect sludge carbide furnace 9, carbonization produces is sucked into carbonization process furnace 14 deodorization of burning by flue under the guiding function of induced draft fan 18.Therefore utilize the incendivity part of volatile matter in the mud carbonization process as the energy of this carbonization process furnace 14, thereby in deodorizing, remove the materials such as dioxin that environment had serious harm, thereby reach the purpose of environmental protection.
Need to prove, those of ordinary skill in the art should be appreciated that and can modify or be equal to replacement technical scheme of the present invention, and do not break away from aim and the scope of technical solution of the present invention, and it all should be encompassed in the middle of claim scope of the present invention.
Claims (10)
1. sludge high temperature carbonization system, it is characterized in that, it comprises the dewatered sludge feed unit, the dewatered sludge mummification unit that the dewatered sludge that described dewatered sludge feed unit is provided carries out mummification, mud after mummification is carried out the dewatered sludge carbonation unit of carbonization, the thermal cycling crosspoint, and carbonization process furnace, described dewatered sludge mummification unit comprises the dewatered sludge drying machine, described dewatered sludge carbonation unit comprises the mud carbide furnace, described carbonization process furnace is used for the supply heated air to described dewatered sludge drying machine with sludge-drying and for supplying with heated air to described mud carbide furnace so that mud heats carbonization, described thermal cycling crosspoint is used for heated air that described dewatered sludge mummification unit is discharged through being sent to the deodorization of burning of described carbonization process furnace after heat exchange, described carbonization process furnace also is used for the deodorization of burning of carbonization produces to described mud carbide furnace carbonizing gas.
2. sludge high temperature carbonization system as claimed in claim 1, it is characterized in that, described dewatered sludge mummification unit comprises and also comprises tornado dust collector, dewatered sludge scraper conveyor, and dewatered sludge storage warehouse, be transported in described dewatered sludge storage warehouse via described dewatered sludge scraper conveyor through the dried dewatered sludge of described dewatered sludge drying machine and store, the heated air that described dewatered sludge drying machine is discharged enters described thermal cycling crosspoint through after tornado dust collector.
3. sludge high temperature carbonization system as claimed in claim 1, it is characterized in that, described dewatered sludge carbonation unit also comprises dewatered sludge worm conveyor and carbide conveying and storing apparatus, described dewatered sludge worm conveyor is used for the dewatered sludge of described dewatered sludge mummification unit output is delivered to described mud carbide furnace, and described carbide conveying and storing apparatus is used for the carbide that the mud carbide furnace forms is carried and stored.
4. sludge high temperature carbonization system as claimed in claim 1, it is characterized in that, the heated air that described thermal cycling crosspoint also is used for described mud carbide furnace is discharged is discharged through after heat exchange, described thermal cycling crosspoint comprises recirculation blower, induced draft fan, gas blower, the one-level heat exchanger, and two-stage heat exchanger, the heated air that discharge described dewatered sludge mummification unit is sent to by described recirculation blower and is resent to the deodorization of burning of described carbonization process furnace after the heat exchange of described one-level heat exchanger, after the heated air described one-level heat exchanger of process and two-stage heat exchanger heat exchange that described mud carbide furnace is discharged, emptying under the guiding of described induced draft fan again, described gas blower enters described carbonization process furnace after being used for blasting air and air fully being heated by described two-stage heat exchanger.
5. sludge high temperature carbonization system as claimed in claim 1, it is characterized in that, described mud carbide furnace comprises rotatable carbonization kettle, driving mechanism, be arranged on a plurality of flights of described carbonization inner wall of kettle, be arranged on a plurality of flow deflectors of described carbonization kettle mud entrance, be looped around the urceolus of described carbonization kettle periphery, described carbonization kettle is used for the dewatered sludge that the described dewatered sludge mummification of carbonization unit transports, described driving mechanism is used for driving described carbonization kettle rotation, thereby described urceolus is used for holding heating medium to heat the dewatered sludge in the described carbonization kettle of described carbonization kettle indirect heating.
6. sludge high temperature carbonization system as claimed in claim 5, is characterized in that, described urceolus comprises independently heating chamber of multistage, and arrange along the axial direction due of described carbonization kettle described multistage heating chamber, and every section heating chamber is provided with hot blast import and hot-blast outlet.
7. sludge high temperature carbonization system as claimed in claim 6, it is characterized in that, described mud carbide furnace also includes temperature control unit, described temperature control unit comprises at least one first temperature control component and a plurality of the second temperature control component, described a plurality of the first temperature control component is for detection of the temperature of described carbonization kettle in carbonization mud process, and driving mechanism according to described temperature regulation drives the rotating speed of described carbonization kettle rotation, described a plurality of the second temperature control component is for detection of the temperature of every section heating chamber, and air output and the inlet temperature of hot blast import according to described temperature regulation.
8. the sludge high temperature carbonization technique, is characterized in that, it comprises the following steps:
1) dewatered sludge is delivered in the dewatered sludge drying machine;
2) the carbonization process furnace is supplied with heated air and is directly contacted with dewatered sludge in the dewatered sludge drying machine, moisture percentage in sewage sludge is dropped to 30%, the heated air of discharging from the dewatered sludge drying machine is undertaken entering carbonization process furnace burning deodorization after heat exchange by the thermal cycling crosspoint after cyclone dust removal;
3) the dried dewatered sludge of dewatered sludge drying machine is delivered in the mud carbide furnace, the carbonization process furnace is supplied with heated air to the mud carbide furnace, dewatered sludge in the mud carbide furnace through high temperature, the anaerobic treatment of 600 ~ 800 ℃, separate out that most moisture and flammable minute component are final forms stable carbonized product, the carbonizing gas that in the mud carbide furnace, carbonization produces exports the deodorization of burning of carbonization process furnace to.
9. sludge high temperature carbonization technique as claimed in claim 8, it is characterized in that, described mud carbide furnace comprises rotatable carbonization kettle, driving mechanism, be arranged on a plurality of flights of described carbonization inner wall of kettle, be arranged on a plurality of flow deflectors of described carbonization kettle mud entrance, be looped around the urceolus of described carbonization kettle periphery, described carbonization kettle is used for the dewatered sludge that the described dewatered sludge mummification of carbonization unit transports, described driving mechanism is used for driving described carbonization kettle rotation, thereby described urceolus is used for holding heating medium to heat the dewatered sludge in the described carbonization kettle of described carbonization kettle indirect heating.
10. sludge high temperature carbonization technique as claimed in claim 8, is characterized in that, described urceolus comprises independently heating chamber of multistage, and arrange along the axial direction due of described carbonization kettle described multistage heating chamber, and every section heating chamber is provided with hot blast import and hot-blast outlet.
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| CN106830602B (en) * | 2017-02-17 | 2023-11-21 | 西安航天源动力工程有限公司 | Temperature-control time-control sludge carbonization method and multistage temperature-control time-control sludge carbonization furnace |
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| CN107337335A (en) * | 2017-08-02 | 2017-11-10 | 上海净泥新能源科技有限公司 | A kind of sludge drying and the equipment and technique of charing |
| CN108033657A (en) * | 2017-12-18 | 2018-05-15 | 北京城市排水集团有限责任公司 | A kind of method for improving pyrolyzing sludge carbonization absorption property |
| CN108033657B (en) * | 2017-12-18 | 2020-04-24 | 北京城市排水集团有限责任公司 | Method for improving adsorption performance of pyrolysis and carbonization of sludge |
| CN108218179A (en) * | 2018-02-09 | 2018-06-29 | 威士邦（厦门）环境科技有限公司 | Continuous ultrasonic cooperates with the sludge drying device and technique of Dynamic membrane-separation system |
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| CN108911453A (en) * | 2018-07-06 | 2018-11-30 | 四川建筑职业技术学院 | A kind of black base-material and preparation method thereof using sludge preparation and prepare production line |
| CN109205975A (en) * | 2018-11-21 | 2019-01-15 | 中节能博实(湖北)环境工程技术股份有限公司 | Sludge carbonization treatment system and technique |
| CN110304804A (en) * | 2019-02-18 | 2019-10-08 | 联合瑞升（北京）科技有限公司 | A kind of sludge hot is quenched and desiccation is carbonized energy conserving system |
| CN110304804B (en) * | 2019-02-18 | 2022-11-25 | 联合瑞升（北京）科技有限公司 | Sludge thermal conditioning and drying carbonization energy-saving system |
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| CN109796994A (en) * | 2019-03-04 | 2019-05-24 | 湖南人文科技学院 | Rotatable biomass pyrolysis furnace in one kind |
| CN110357378A (en) * | 2019-06-26 | 2019-10-22 | 上海煜工环保科技有限公司 | A kind of organic solid waste carbonization method of disposal of energy-efficient electromagnetic induction heating and device |
| CN110357389A (en) * | 2019-07-15 | 2019-10-22 | 上海大川原德莱因设备工程有限公司 | A kind of hot air type sludge drying and incinerating system |
| CN110805906A (en) * | 2019-12-06 | 2020-02-18 | 湖南天通无腐烟囱工程有限公司 | Sludge and garbage drying carbonization pyrolysis combustion treatment system and method |
| CN112094025A (en) * | 2020-09-08 | 2020-12-18 | 天津壹新环保工程有限公司 | System and method for recovering phosphorus in sludge |
| CN112094025B (en) * | 2020-09-08 | 2024-01-30 | 天津壹新环保工程有限公司 | System and method for recycling phosphorus in sludge |
| CN112979122A (en) * | 2021-02-08 | 2021-06-18 | 湖南爵铭环保有限公司 | Sludge carbonizing device |
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