CN106145574A - A kind of multi-section tube type mud Rapid Thermal hydrolysis process technique - Google Patents
A kind of multi-section tube type mud Rapid Thermal hydrolysis process technique Download PDFInfo
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Abstract
The invention discloses a kind of multi-section tube type mud Rapid Thermal hydrolysis process technique, its method is: mud is sent into former dredge pump, carries out with flash-off steam mixing preheating for the first time；Then above-mentioned preheating thing is pumped into first-stage dynamic blender, carry out second time with feedstock vapor and mix preheating；Secondary mixing preheating mud utilizes overbottom pressure gravity flow to enter two grades of static mixers, carries out final Hybrid Heating with the mixed vapour from steam jet ejector；Three times Hybrid Heating mud utilize overbottom pressure gravity flow entrance fast-assembling pipe type water thermal reactor to react；Reaching the mud entrance flash tank after reaction requires and carry out flash distillation, after flash distillation, mud can be dehydrated or directly anaerobic digestion further.This technology utilization steam directly mixes a large amount of latent heat of generation with mud, mud is heated to cell rupture, cytosol dissolution, thus changes the dewatering of mud, anaerobic digestion performance.High-grade steam conducts heat through flash distillation, makes the utilization ratio of steam reach the highest.
Description
Technical field
The present invention relates to technical field of sludge treatment, particularly relate to the process side of sewage treatment plant residual mud
Method.
Background technology
In recent years, deep along with universal, the raising for the treatment of capacity of municipal sewage treatment facility and degree for the treatment of
Changing, mud generation amount sharply increases with the speed of annual 10%.The complicated component of mud, moisture content are high, de-
Water difficulty, the harmful substance such as Organic substance containing high concentration, pathogenic microorganism, heavy metal ion, Er Qiechang
With stench, cause serious secondary pollution if comprehended without suitable place, harm ecological environment and people
Class is healthy.
At present, sludge disposal technology route mainly has: sludge heat drying, sludge condensation, mechanical sludge dewatering,
The digestion of anaerobic sludge digestion, sludge aerobic, mud lime stabilization, biofermentation process, wet oxidation, dirt
The methods such as mud burning, sludge hot process, and comprehensive treatment effect optimal should belong to pyrohydrolytic method.Pyrohydrolytic method
It is with high-temperature high-pressure steam and the direct Hybrid Heating of mud, to reach the effect of sludge hydrolytic, and major part
Technique is aided with flash process, to strengthen air blasting shell-broken effect, and effectively reduces energy consumption.Whole world pyrohydrolysis at present
The engineering project of Treatment of Sludge has more than 30, and the pyrohydrolysis technological principle used is essentially identical, simply water
Thermal reactor form is otherwise varied, if any static tower type hydrothermal reactor, vertical interior mechanical agitation autoclave hydro-thermal
Reactor, horizontal interior mechanical agitation autoclave hydrothermal reactor, horizontal rotary hydrothermal reactor etc..
Above-mentioned all kinds of hydrothermal treatment process exists that number of devices is many, floor space is relatively big, specific investment cost cost relatively
The problems such as height, reliability are poor, for these problems, create multi-section tube type mud Rapid Thermal hydrolysis process.
Summary of the invention
The present invention is directed to the mud of moisture content 75%～85%, it is provided that a kind of multi-section tube type mud rapid hot water
Solution processes technique, and its principle is: utilizes steam directly to mix a large amount of latent heat of generation with mud, is added by mud
Heat is to cell rupture, cytosol dissolution, thus changes the dewatering of mud, anaerobic digestion performance.High-grade
Steam through flash distillation conduct heat, make the utilization ratio of steam reach the highest.
Technical scheme is as follows:
A kind of multi-section tube type mud Rapid Thermal hydrolysis process technique, comprises the steps:
1) it is that the sewage sludge storage of 10～35 DEG C is in former pug storehouse by moisture content 75%～85%, temperature；
2) above-mentioned mud enters former dredge pump by pipeline, carries out the most mixed in former dredge pump with flash-off steam
Closing preheating, fixed gas and unabsorbed steam that this stage produces enter former by the sludge outlet in former pug storehouse
Pug storehouse；
3) above-mentioned preheating thing is delivered to first-stage dynamic blender by former dredge pump, carries out second time with feedstock vapor
Mixing preheating, this stage is the temperature range more concentrated that fixed gas is formed, and produced fixed gas enters former
Pug storehouse carries out energy regenerating；
4) above-mentioned secondary mixing preheating mud utilizes overbottom pressure gravity flow to enter two grades of static mixers, and from steaming
The mixed vapour of vapour ejector carries out final Hybrid Heating；
5) above-mentioned three Hybrid Heating mud utilize overbottom pressure gravity flow entrance fast-assembling pipe type water thermal reactor to carry out instead
Should；
6) reacted mud enters flash tank and carries out flash distillation, and after flash distillation, mud can be dehydrated or directly further
Anaerobic digestion.
Preferably, step 2) described in flash-off steam temperature be 105～115 DEG C, pressure is
0.05～0.1MPa, after mixed once, mud temperature is up to 65～90 DEG C；
Preferably, step 3) described in feedstock vapor temperature be 190～200 DEG C, pressure is 1.1～1.5MPa,
Secondary mixing preheating mud temperature is up to 110～130 DEG C；
Preferably, step 4) described in mixed vapour be feedstock vapor and flash-off steam is sprayed by steam
Mixed steam made by device, its volume ratio is 1: 3～1: 6, and vapor (steam) temperature is 180～195 DEG C, and pressure is
0.9～1.3MPa, three Hybrid Heating mud temperature are up to 170～190 DEG C；
Preferably, step 5) described in the hydro-thermal reaction time be 5～10min, response time and system
Disposal ability is inversely prroportional relationship；
Preferably, step 6) in flash tank in temperature be 105～115 DEG C, pressure is 0.05～0.1MPa；
Preferably, step 6) in the flash-off steam part that produces be passed through described former dredge pump, mud is carried out
Mixing preheating for the first time, another part is passed through steam jet ejector, is mixed and made into mixed vapour with feedstock vapor.
Present invention simultaneously provides a kind of multi-section tube type mud Rapid Thermal hydrolysis processing system, according to above-mentioned process side
Method operates, and specifically includes former pug storehouse, former dredge pump, first-stage dynamic blender, two grades of static mixers, steamings
Vapour ejector, fast-assembling pipe type water thermal reactor, flash tank, described former pug storehouse, former dredge pump, first-stage dynamic
Blender, two grades of static mixers, fast-assembling pipe type water thermal reactor, flash tanks are sequentially connected in series in path,
Described steam jet ejector is connected by pipeline and two grades of static mixers；
Further, center, top, described former pug storehouse is provided with exhaust emissions outlet, and lower side is provided with does not coagulates
Vapour entrance, bottom is provided with sludge outlet；
Further, described former dredge pump entrance is rectangle wide-mouth, and top is provided with sludge inlet, and lower side sets
Having flash-off steam entrance, inside is provided with Double-helix propeller and uniform gas distribution system；
Further, described first-stage dynamic blender top is provided with not condensing outlet, and lower side is provided with mud
Entrance and feedstock vapor entrance, inside is provided with mechanical stirring device, the outlet of described fixed gas and described former pug
The fixed gas entrance in storehouse is connected；
Further, described two grades of static mixer sides are provided with sludge inlet, and bottom is provided with distributing mixing
Steam inlet；
Further, described steam jet ejector side is provided with feedstock vapor entrance, and bottom is provided with flash-off steam and enters
Mouthful, another one side is provided with mixed vapour outlet, the outlet of described mixed vapour and described two grades of static mixing
Distributing mixed vapour entrance bottom device is connected；
Further, described fast-assembling pipe type water thermal reactor is multi-section tube type structure, is quickly connected by flange,
Can quickly assemble, by the change of pipe quantity, scalable response time, arrange between pipe and bypass valve transboundary
Pipeline, can adjust dischargeable capacity and the time of staying of reactor in system is run；
Further, described flash drum overhead is provided with flash-off steam outlet, and upper side is provided with sludge inlet,
Center, bottom is provided with sludge outlet, can connect dewaterer or anaerobic digestion facility, the outlet of described flash-off steam with
Flash-off steam entrance bottom the flash-off steam entrance of described former dredge pump lower side, steam jet ejector is connected.
Further, whole system is the most airtight, and all foul smell all concentrate on former pug storehouse top discharge, enter
Enter vent gas treatment facility properly to dispose.
The present invention, relative to traditional sludge pyrohydrolysis technique, has the advantage that
1) raw sludge is directly processed, it is not necessary to reflux dilution.
General pyrohydrolysis technique is required to reflow process, to ensure the vapor absorption efficiency of subsequent handling, main
If because sludge concentration height causes viscosity abruptly increase, reducing the mass transfer effect of steam and mud.And this technique
In, steam gas distribution system set in former dredge pump can in pump suction chamber uniform gas distribution, set double spiral shells
Rotation feeding system, can be sufficiently stirred for raw sludge, make mud, flash-off steam be sufficiently mixed mass transfer, improves
Vapor absorption efficiency；The steam of non-absorption condensation is during passing through former pug storehouse sludge blanket, most of
By former mud condensed absorbent.Improve the absorbance of flash-off steam the most to greatest extent.
Follow-up two-stage jet chimney mixing arrangement uses the most dynamically, rear static order, is mixed by first-stage dynamic
After clutch, mud viscosity is substantially reduced, and reaches 5000～8000cp, is the mixing effect of two grades of static mixers
Fruit provides guarantee.
2) power-equipment is few, and power consumption is lower.
Electrical equipment in general pyrohydrolysis technique has: former dredge pump, backflow water pump, hydrothermal reactor charging pump,
Homogenizing/pulp mechanical agitator (or Hydraulic Circulation pump), hydrothermal reactor mechanical agitator etc..And this technique
Electrical equipment be only former dredge pump, the power resources of remaining subsequent handling are former dredge pump and mud pressure itself,
Unit power consumption is that conventional hot water solves about the 1/2 of technique.
3) control point is few, controls logic terse, and reliability is higher.
Control point in general pyrohydrolysis technique has: the control of Liquid level, temperature, Stress control, flow control
System, time control etc., and each reactor to be required to arrange above-mentioned control chain, and general batch-type heat
Hydrolysis process also relates to the control (according to time, liquid level, temperature, pressure etc.) of dozens of program-controlled valve,
The pump simultaneously used needs to arrange the defencive functions such as pressure, flow, temperature, and whole system needs to arrange several
Ten, the most up to a hundred control point, control complexity is high, once some control point break down can cause whole
Cover system stops, poor reliability.
And the control point of this technique only has: chain, the hydro-thermal discharge that enter steam control valve and hydrothermal temperature are adjusted
Chain, the one-level of joint valve and chain, the flash tank discharge regulation valve of hydro-thermal reaction pressure and flash tank liquid level are moved
The time of state blender air bleeding valve controls, a total of 4 control point.Therefore, technique is more terse, reliability
Higher.
4) number of devices is few, invests low, occupation of land province.
In general pyrohydrolysis technique, involved equipment has: former pug storehouse 1～2, former dredge pump 1～2, backflow
(pulp is reacted for water pump 1～2, hydrothermal reactor charging pump 1～2, pulp Hydraulic Circulation pump 1～2
Device is without arranging during agitator), pulp reactor 1～2, hydrothermal reactor 2～8, flashing reactor 1～6
Platform etc..Meanwhile, the time of staying set by the general each reactor of pyrohydrolysis technique is 30～120min.
And the capital equipment of this technique is: former pug storehouse, former dredge pump, first-stage dynamic blender, two grades of static state
Blender, steam jet ejector, fast-assembling pipe type water thermal reactor, flash tank.Wherein, former pug storehouse, former mud
Pump, flash tank and common process equipment investment, take up an area essentially identical；Remaining first-stage dynamic blender, two grades
Static mixer, steam jet ejector etc. are conduit fittings class, and volume is little, take up an area province；Fast-assembling tubular type hydro-thermal is anti-
Answering device is vertical tube group, takes up an area and saves (the about floor space of 1 hydrothermal reactor of common process), meanwhile,
Eliminate the equipment such as the pulp reactor of common process, hydrothermal reactor, hydro-thermal charging pump.This process equipment
Investment is the 40%～50% of conventional thermal hydrolysis process.
5) continuous process, more superior.
The hydrothermal reactor collection of general batch-type hydrolysis process feeds, preheats, heats, reacts, discharge, treat
Each operation such as machine is in one, and its capacity utilization is relatively low, and the real reaction time accounts for total residence time
1/5～1/3.Therefore result in gross investment, floor space etc. to be multiplied.
And this technique is continuous process, mud heating process is integrated in former dredge pump, first-stage dynamic blender,
In two grades of static mixers, fast-assembling pipe type water thermal reactor is only the place of hydro-thermal reaction.Therefore, its equipment
Capacity utilization is higher, is that a kind of investment is low, takes up an area province's optimum process.
Accompanying drawing explanation
Accompanying drawing 1 is the system structure schematic diagram of the present invention；
Accompanying drawing 2 is the process flow diagram of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing and instantiation, the present invention is further introduced, but not as to the present invention's
Limit.
As it is shown in figure 1, the capital equipment of the present invention includes: former pug storehouse 1, former dredge pump 2, first-stage dynamic
3, two grades of static mixers 4 of blender, steam jet ejector 5, fast-assembling pipe type water thermal reactor 6, flash tank
7, described former pug storehouse 1, former dredge pump 2, first-stage dynamic blender 3, two grades of static mixers 4, fast-assemblings
Pipe type water thermal reactor 6, flash tank 7 are sequentially connected in series in path, and described steam jet ejector 5 passes through pipeline
It is connected with two grades of static mixers 4；Described former dredge pump 2 is provided with flash-off steam entrance；Described first-stage dynamic is mixed
Clutch 3 is provided with feedstock vapor entrance, and top is additionally provided with the not condensing of not condensing outlet and described raw material hopper dredger 1
Entrance communicates；Described steam jet ejector 5 is provided with feedstock vapor entrance and flash-off steam entrance, and two kinds of steam are pressed
The mixed mixed vapour of ratio enters described two grades of static mixers 4 by pipeline；Described flash tank 7 pushes up
Portion is provided with flash-off steam outlet, with flash-off steam entrance, the flash distillation of steam jet ejector 5 of described former dredge pump 2
Steam inlet is connected.
Again as in figure 2 it is shown, the technical process of the present invention is: moisture content 75%～85% in former pug storehouse 1,
Temperature is that the mud of 10～35 DEG C enters former dredge pump 2, carries out with flash-off steam mixing preheating for the first time, these rank
The fixed gas of section generation and unabsorbed steam, through former pug storehouse 1, concentrate and be emitted into vent gas treatment facility
In；Above-mentioned preheating thing is delivered to first-stage dynamic blender 3 by former dredge pump 2, carries out second time with feedstock vapor
Mixing preheating, this stage produced fixed gas enters former pug storehouse 1 and carries out energy regenerating；Above-mentioned secondary mixes
Preheating mud utilizes overbottom pressure gravity flow to enter two grades of static mixers 3, steams with the mixing from steam jet ejector 5
Vapour carries out final Hybrid Heating；Above-mentioned three Hybrid Heating mud utilize overbottom pressure gravity flow to enter fast-assembling pipe type water
Thermal reactor 6 reacts；Reacted mud enters flash tank 7 and carries out flash distillation, the flash-off steam of generation
A part is passed through described former dredge pump 2, carries out mud mixing preheating for the first time, and another part is passed through steam spray
Emitter 4, is mixed and made into mixed vapour with feedstock vapor；Mud after flash distillation can be dehydrated further or directly detest
Oxygen digests；Whole system is the most airtight, and all foul smell all concentrate on former pug storehouse 1 top discharge, enters tail gas
Treatment facility is properly disposed.
It needs to be determined that following key parameter in this technology: former pug storehouse, former dredge pump, first-stage dynamic mixing
When device, two grades of static mixers, fast-assembling pipe type water thermal reactor, the operation temperature of flashing reactor, stops
Between and operation pressure.These parameters all directly affect final treatment effect.In this technology, according to follow-up place
The difference of reason method of disposal, each parameter selection range is as follows:
| Title | Temperature/DEG C | Pressure/MPa | The time of staying |
| Former pug storehouse | 10～35 | Normal pressure | 2～5d |
| Former dredge pump | 65～90 | 1.2～1.6 | 5～10min |
| First-stage dynamic blender | 110～130 | 1.1～1.5 | 2～5min |
| Two grades of static mixers | 170～190 | 0.9～1.3 | 5～8min |
| Fast-assembling pipe type water thermal reactor | 170～190 | 0.9～1.3 | 5～10min |
| Flash tank | 105～115 | 0.05～0.1 | 30～60min |
It is below specific embodiment:
The raw sludge that embodiment is 1,25 DEG C carries out with flash-off steam mixing preheating for the first time in former dredge pump,
Time of staying 6min, temperature is increased to 80 DEG C；Second is carried out again at first-stage dynamic blender and feedstock vapor
Secondary mixing preheating, time of staying 3min, temperature is increased to 120 DEG C；Then at two grades of static mixers with mixed
Closing steam and carry out third time Hybrid Heating, time of staying 7min, temperature is increased to 170 DEG C；Then at fast-assembling
Pipe type water thermal reactor keeps this temperature 5min, finally enters flash distillation pressure release in flash tank, the time of staying
40min, temperature is down to 105 DEG C, flash distillation mud is carried out processed.Reaction result, total solid (TS)
Removing 5%, total organic solid (TVS) removes 9%, and suspended solid (SS) dissolves 15%, supernatant
COD (SCOD) is 28000mg/L.The solid content of dehydrated sludge cake is 41%.
Embodiment 2, in fast-assembling pipe type water thermal reactor, reaction temperature 180 DEG C, time of staying 10min,
Other reaction condition is with embodiment 1.Reaction result, total solid (TS) removes 5.6%, total organic solid
(TVS) removing 10%, suspended solid (SS) dissolves 18%, and supernatant C OD (SCOD) is
33000mg/L.The solid content of dehydrated sludge cake is 51%.
Embodiment 3, in fast-assembling pipe type water thermal reactor, reaction temperature 190 DEG C, time of staying 10min,
Other reaction condition is with embodiment 1.Reaction result, total solid (TS) removes 7.2%, total organic solid
(TVS) removing 15%, suspended solid (SS) dissolves 26%, and supernatant C OD (SCOD) is
45000mg/L.The solid content of dehydrated sludge cake is 62%.
Embodiment 4, in fast-assembling pipe type water thermal reactor, reaction temperature 170 DEG C, time of staying 10min,
Other reaction condition is with embodiment 1.Reaction result, total solid (TS) removes 5.7%, total organic solid
(TVS) removing 10.2%, suspended solid (SS) dissolves 15.7%, and supernatant C OD (SCOD) is
29500mg/L.The solid content of dehydrated sludge cake is 43%.
The raw sludge that embodiment is 5,20 DEG C carries out mixing for the first time pre-in former dredge pump porch with flash-off steam
Heat, time of staying 5min, temperature is increased to 75 DEG C；Carry out with feedstock vapor at first-stage dynamic blender again
Second time mixing preheating, time of staying 4min, temperature is increased to 118 DEG C；Then at two grades of static mixers
Carrying out third time Hybrid Heating with mixed vapour, time of staying 6min, temperature is increased to 172 DEG C；Then exist
Fast-assembling pipe type water thermal reactor keeps this temperature 5min, finally enters flash distillation pressure release in flash tank, during stop
Between 40min, temperature is down to 107 DEG C.Reaction result, the unit steam consumption of raw sludge is that 0.205t-steams
Vapour/t-raw sludge.
Embodiment 6, fast-assembling pipe type water thermal reactor keep 180 DEG C, continue 5min, other reaction condition
With embodiment 5.Reaction result, the unit steam consumption of raw sludge is 0.218t-steam/t-raw sludge.
Embodiment 7, fast-assembling pipe type water thermal reactor keep 190 DEG C, continue 5min, other reaction condition
With embodiment 5.Reaction result, the unit steam consumption of raw sludge is 0.232t-steam/t-raw sludge.
The mixing for the first time of embodiment 8, raw sludge is preheating to 65 DEG C, and other reaction condition is with embodiment 5.
Reaction result, the unit steam consumption of raw sludge is 0.228t-steam/t-raw sludge.
The mixing for the first time of embodiment 9, raw sludge is preheating to 90 DEG C, and other reaction condition is with embodiment 5.
Reaction result, the unit steam consumption of raw sludge is 0.197t-steam/t-raw sludge.
It should be noted that and the foregoing is only presently preferred embodiments of the present invention, not thereby limit the present invention
Scope of patent protection, the present invention can also be to the concrete operation step in said method and various equipment
Structure carries out the improvement of material and structure, or uses technically equivalent ones to be replaced.Therefore all utilizations this
The equivalent structure change that bright description and diagramatic content are made, or directly or indirectly apply to other relevant skills
Art field is the most all contained in the range of the present invention contained.
Claims (8)
1. a multi-section tube type mud Rapid Thermal hydrolysis process technique, it is characterised in that comprise the steps:
1) it is that the sewage sludge storage of 10～35 DEG C is in former pug storehouse by moisture content 75%～85%, temperature；
2) above-mentioned mud enters former dredge pump by pipeline, carries out the most mixed in former dredge pump with flash-off steam
Closing preheating, fixed gas and unabsorbed steam that this stage produces enter former by the sludge outlet in former pug storehouse
Pug storehouse；
3) above-mentioned preheating thing is delivered to first-stage dynamic blender by former dredge pump, carries out second time with feedstock vapor
Mixing preheating, this stage is the temperature range more concentrated that fixed gas is formed, and produced fixed gas enters
Former pug storehouse carries out energy regenerating；
4) above-mentioned secondary mixing preheating mud utilizes overbottom pressure gravity flow to enter two grades of static mixers, and from steaming
The mixed vapour of vapour ejector carries out final Hybrid Heating；
5) above-mentioned three Hybrid Heating mud utilize overbottom pressure gravity flow entrance fast-assembling pipe type water thermal reactor to carry out instead
Should；
6) reacted mud enters flash tank and carries out flash distillation, and after flash distillation, mud can be dehydrated or directly further
Anaerobic digestion.
2. mud Rapid Thermal hydrolysis process technique as claimed in claim 1, it is characterised in that step 2)
Described in flash-off steam temperature be 105～115 DEG C, pressure is 0.05～0.1MPa, mud after mixed once
Temperature is up to 65～90 DEG C.
3. mud Rapid Thermal hydrolysis process technique as claimed in claim 1, it is characterised in that step 3)
Described in feedstock vapor temperature be 190～200 DEG C, pressure is 1.1～1.5MPa, secondary mixing preheating mud
Temperature is up to 110～130 DEG C.
4. mud Rapid Thermal hydrolysis process technique as claimed in claim 1, it is characterised in that step 4)
Described in mixed vapour be feedstock vapor and flash-off steam by the mixed steam made by steam jet ejector, its
Volume ratio is 1: 3～1: 6, and vapor (steam) temperature is 180～195 DEG C, and pressure is 0.9～1.3MPa, and three mixing add
Hot mud temperature is up to 170～190 DEG C.
5. mud Rapid Thermal hydrolysis process technique as claimed in claim 1, it is characterised in that step 5)
Described in the hydro-thermal reaction time be 5～10min, the disposal ability of response time and system be inverse proportion close
System.
6. mud Rapid Thermal hydrolysis process technique as claimed in claim 1, it is characterised in that step 6)
In flash tank in temperature be 105～115 DEG C, pressure is 0.05～0.1MPa.
7. mud Rapid Thermal hydrolysis process technique as claimed in claim 1, it is characterised in that step 6)
A flash-off steam part for middle generation is passed through described former dredge pump, carries out mud mixing preheating for the first time, another
Part is passed through steam jet ejector, is mixed and made into mixed vapour with feedstock vapor.
8. a multi-section tube type mud Rapid Thermal hydrolysis processing system, it is characterised in that including: former pug storehouse,
Former dredge pump, first-stage dynamic blender, two grades of static mixers, steam jet ejector, fast-assembling pipe type water thermal responses
Device, flash tank, described former pug storehouse, former dredge pump, first-stage dynamic blender, two grades of static mixers, fast
Tubulature formula hydrothermal reactor, flash tank are sequentially connected in series in path, and described steam jet ejector passes through pipeline and two
Level static mixer is connected.
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| CN109205992B (en) * | 2018-10-29 | 2021-12-31 | 长沙理工大学 | Biological sludge heating and pyrohydrolysis system and process |
| CN109205992A (en) * | 2018-10-29 | 2019-01-15 | 长沙理工大学 | Biological sludge heating and pyrohydrolysis system and technique |
| CN109292875A (en) * | 2018-11-13 | 2019-02-01 | 南京工程学院 | A solution concentration device based on steam cascade utilization and its realization method |
| CN109292875B (en) * | 2018-11-13 | 2023-10-17 | 南京工程学院 | A solution concentration device based on steam cascade utilization and its implementation method |
| CN109626784A (en) * | 2019-02-26 | 2019-04-16 | 广西大学 | A kind of anticlogging sludge continuous thermal hydrolysis system |
| CN110734210B (en) * | 2019-11-27 | 2022-06-03 | 浙江绿治环保技术有限公司 | Thermal hydrolysis method of sludge |
| CN110734210A (en) * | 2019-11-27 | 2020-01-31 | 浙江绿治环保技术有限公司 | Thermal hydrolysis method of kinds of sludge |
| CN116354573A (en) * | 2021-12-28 | 2023-06-30 | 山西领君重工机械设备有限公司 | Sludge preheating demulsification drying device and method |
| CN115849667A (en) * | 2022-12-21 | 2023-03-28 | 上海仁创环境科技有限公司 | Sludge treatment system and treatment method |
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