CN106587555A - Sewage sludge treatment device - Google Patents
Sewage sludge treatment device Download PDFInfo
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- CN106587555A CN106587555A CN201611196276.7A CN201611196276A CN106587555A CN 106587555 A CN106587555 A CN 106587555A CN 201611196276 A CN201611196276 A CN 201611196276A CN 106587555 A CN106587555 A CN 106587555A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
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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
- Y02W10/20—Sludge processing
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- Health & Medical Sciences (AREA)
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to a sewage sludge treatment device. The sewage sludge treatment device comprises a concentrating device (1), a first heat exchanger (2), a second heat exchanger (3), an anaerobic digestion reactor (4), an aerobic digestion reactor (5) and a sludge dewatering device (6) which communicate with one another sequentially, wherein a medium inlet of a heat exchange tube 2a in the first heat exchanger communicates with a returned sludge outlet (5a) of the aerobic digestion reactor, an outlet of the heat exchange tube (2a) communicates with a returned sludge inlet (5b) of the aerobic digestion reactor, and an inlet of a distributing pipe (5e) of a spraying member (5d) at the upper part of an internal cavity of the aerobic digestion reactor (5) communicates with the outlet of the heat exchange tube (2a) in the first heat exchanger or is connected with and communicates with the middle section of a third tube element (9). The sewage sludge treatment device has the characteristics that the efficiency of removal of volatile suspended solids from sewage sludge can be increased, meanwhile, ammonia nitrogen is reduced, and the energy consumption is lowered.
Description
Technical field
The invention belongs to sludge treatment device, the place of produced sludge in specially a kind of sewage disposal place operation process
Reason device.
Background technology
During cities and towns and Industrial Waste Water Treatments, by precipitating and filtering inorganic or organic particulate matter and can is removed
During biodegradable compound, a large amount of sludge, including Sludge from primary sedimentation tank and second pond sludge etc. are produced.Removing in sludge can
The organic and inorganic particle beyond the region of objective existence of precipitation, the predominantly microorganism thalline that propagation is generated in oxidation Decomposition dirt Organic substance in water and old
Change dead microorganism residuum.At present conventional Sewage Sludge Treatment Techniques mainly have two kinds of anaerobic digestion and aerobic sigestion, its
Middle anaerobic digestion is widely used.
Current Anaerobic Digestion, mainly including enrichment facility, anaerobic digestion reaction vessel (containing rabbling mechanism), dehydration dress
Put.Anaerobic sludge digestion is under anaerobic, sludge is hydrolyzed, is fermented using amphimicrobe and anaerobe, methane phase
Etc. course of reaction, most at last Organic substance is decomposed into CH in sludge4、CO2、H2And NH3Deng reaching sludge stabilization, volume reduction, decrement
With the purpose of harmless treatment.The deficiency of presence：1. it is 40～45% to VSS (VSS) clearance, clearance
It is relatively low, mud decrement DeGrain；2. anaerobic digestion process can produce ammonia, and under anaerobic, ammonia can not be nitrified, and be caused
Ammonia nitrogen concentration is higher in the filtrate that sludge dewatering is produced, the up to 1000～1500mg/l having, and is unfavorable for follow-up sewage disposal；
3. under anaerobic, polyP bacteria discharges the polymeric phosphate stored in the cell by hydrolysis in sludge, with sludge
In calcium ions and magnesium ions and ammonia form ammoniomagnesium phosphate (guanite), easily form fouling in device for dehydrating sladge waste, affect dehydration equipment
Normal operation.
Current aerobic sigestion is processed, mainly including enrichment facility, aerobic sigestion reaction tank (needing oxygen supply), dehydration device.
Sludge aerobic digestion is under aerobic conditions, using aerobic microbiological the Organic substance in sludge to be decomposed, and is translated into CO2、H2O、
NH4 +, nitrate etc., to reduce the content of VSS (VSS), reach the purpose of sludge stabilization, decrement and volume reduction.With
Anaerobic digestion process is compared, and the digestible degree of sludge aerobic digestion is higher, the good stability of operation.The deficiency of presence：1. volatilize
Property suspended solid (VSS) clearance be 55～60%；2. during aerobic sigestion, aerobic microbiological is carried out point to Organic substance
Solution, organic nitrogen can also be converted into NH4 +, and aerobic reaction is exothermic reaction, therefore reactor temperature is higher, can suppress nitrifier
With the growth of nitrococcus, it is difficult to NH4 +Nitrified and nitrosation reaction, caused NH4 +Accumulation and pH value raise, pH value
Raising can produce certain toxicity to system, affect the normal operation of system；3. sludge aerobic digestion process can produce a large amount of foams,
Affect operation.
The content of the invention
For the deficiencies in the prior art, the present invention proposes a kind of sewage sludge processing meanss, and this sludge treatment equipment can be carried
VSS (VSS) removal efficiency in high sewage sludge, while reducing ammonia nitrogen, saving energy consumption.
Technical solution of the present invention, including enrichment facility 1, First Heat Exchanger 2, the second heat exchanger 3, anaerobic digestion reaction vessel 4,
Aerobic sigestion reactor 5, sludge dehydration device 6；
The enrichment facility 1 is communicated with the entrance pipe of sludge, the sludge outlet of enrichment facility 1 and the First Heat Exchanger 2
Sludge import communicate；
There is heat exchanger tube 2a in the First Heat Exchanger 2, the medium that heat exchanger tube 2a has medium entrance and outlet, heat exchanger tube 2a enters
Mouth is communicated with the returned sludge outlet 5a on the aerobic sigestion reactor 5, outlet and the aerobic sigestion reactor 5 of heat exchanger tube 2a
On sludge reflux import 5b communicate, the sludge outlet of the First Heat Exchanger 2 is communicated with the sludge import of the second heat exchanger 3；
There are heat pipe 3a, heat pipe 3a to have medium entrance and outlet, the dirt of the second heat exchanger 3 in second heat exchanger 3
Mud outlet is communicated with the sludge import of the anaerobic digestion reaction vessel 4；
Gas outlet 4d arranged at the top of the anaerobic digestion reaction vessel 4, the sludge outlet of anaerobic digestion reaction vessel 4 with it is described
The sludge import of aerobic sigestion reactor 5 is communicated；
Air inlet lines 5c is arranged at the bottom of aerobic sigestion reactor 5, and waste gas outlet 5g is arranged at top, and addition acid solution is arranged at top
Import 5f, the sludge outlet of aerobic sigestion reactor 5 communicates with the sludge import of the sludge dehydration device 6；
Sludge outlet 6a and dehydration liquid outlet 6b is arranged at the bottom of the sludge dehydration device 6.6 pairs of entrance of sludge dehydration device
Sludge carries out processed, and the body refuse outward transport discharged after dehydration is disposed, and the dehydration liquid discharged after dehydration enters sewage disposal system
Or otherwise processed.
It is further：
The anaerobic digestion reaction vessel 4 is provided with sludge return type rabbling mechanism 4a, and sludge return type rabbling mechanism 4a includes
Backflow pipe fitting 4b, the sludge reflux import of the pipe fitting 4b that flows back is communicated with the bottom of the anaerobic digestion reaction vessel 4, flows back pipe fitting 4b's
Sludge reflux outlet is communicated with the top of the anaerobic digestion reaction vessel 4, and backflow pipe fitting 4b is provided with circulating pump 4c；The sludge is returned
The sludge of bottom in anaerobic digestion reaction vessel 4 is delivered to stream agitating device 4a top in anaerobic digestion reaction vessel 4, using following
The kinetic energy that ring pump 4c is provided, makes by top into the sludge in anaerobic digestion reaction vessel 4 to the dirt in anaerobic digestion reaction vessel 4
Mud is stirred.
The inner chamber top of the aerobic sigestion reactor 5 is provided with spraying component 5d, the distribution pipe 5e import in spraying component 5d
Communicate with the outlet of heat exchanger tube 2a in the First Heat Exchanger 2.
Referring to accompanying drawing, the running of the present invention：
It is aerobic to disappear in First Heat Exchanger 2 after the concentrated concentration of device 1 of sludge that sewage disposal process is produced
Part in the change running of reactor 5 has in the heat exchanger tube 2a that the mud mixture of heat energy is entered in First Heat Exchanger 2, with
Sludge produces heat exchange in First Heat Exchanger 2, to preheating into sludge in First Heat Exchanger 2, through heat exchange
Mud mixture afterwards, is then entered back in the aerobic sigestion reactor 5 by pipe fitting；
The pre-warmed sludge of Jing First Heat Exchangers 2 carries out heat exchange and heats up in the second heat exchanger 3；
Sludge Jing after heat exchange being carried out in the second heat exchanger 3 and is heated up carries out anaerobism and disappears into anaerobic digestion reaction vessel 4
Change reaction treatment, meanwhile, the sludge reflux agitating device 4a on the anaerobic digestion reaction vessel 4 enters to anaerobic digestion reaction vessel 4
Row stirring, in the anaerobic digestion process of anaerobic digestion reaction vessel 4, using amphimicrobe and anaerobe biochemical reaction is carried out, and is removed
Part VSS (VSS) (Organic substance) in sludge；Including the microbial cells of the process sewage contained in sludge,
Partial organic substances are made to be decomposed into biogas, main component is CH4、CO2、H2And NH3Deng, biogas by the top of anaerobic digestion reaction vessel 4
Gas outlet 4d is discharged, can be used as fuel Jing after the other depurator for arranging is processed.
Sludge Jing after the process of anaerobic digestion reaction vessel 4 carries out aerobic sigestion process into aerobic sigestion reactor 5, passes through
Blower fan sends into air and carries out aeration (oxygen supply), air inlet duct 5c and sludge reflux import 5b phases to Jing anaerobic digestion reaction vessels 5
Even, air is sent into aerobic sigestion reactor by the negative pressure and the pressure of blower fan for producing using sludge reflux import 5b, can be appropriate
Reduce the pressure head of blower fan, save energy consumption；Using the air with kinetic energy sludge is stirred with the mixed liquor of sludge simultaneously；Together
When, using the partial sludge mixture of the heat exchanger tube 2a outlets in the First Heat Exchanger 2, by aerobic sigestion reactor 5
The spraying component 5b on inner chamber top is sprayed downwards by top, eliminates the foam that aerobic sigestion reaction is produced.In aerobic sigestion reaction
In device, under aerobic condition, the Organic substance in the sludge that anaerobic digestion reaction is not removed further is removed using aerobic microbiological,
Because aerobic sigestion reaction is exothermic reaction, in sludge aerobic digestion process, system temperature is raised, and can improve aerobic reaction speed
Degree and efficiency, Jing after aerobic sigestion reaction, can improve the removal efficiency of the total VSS of sludge (VSS)；
Sludge carries out aerobic sigestion, the nitrifier under the conditions of aerobic, preference temperature and pH, in sludge after anaerobic digestion
With nitrococcus amount reproduction, the NH that can be produced anaerobic digestion3Nitrosation and nitrification are carried out, nitrite and nitric acid is generated
Salt.The NH being dehydrated when can significantly reduce follow-up sludge dewatering in liquid3Concentration.Intermittent aerating is carried out to aerobic sigestion reactor, is handed over
For aerobic and anaerobic environment is formed, the nitrogen in the nitrite and nitrate to be formed can be made under anaerobic environment to be reduced to N2Into
Air, completes denitrification process；Or the dissolved oxygen (DO) of aerobic digestion reactor is controlled in low concentration, in the feelings of continuous aeration
NH can be completed under condition3Simultaneous nitrification and denitrification, realize denitrogenation, reduce the ammonia nitrogen in sludge.Nitrobacteria growth is bred most
Good preference temperature is 38～40 DEG C, and because aerobic sigestion reaction is exothermic reaction, aerobic sigestion reactor is warm in running
Degree can be gradually increased to 55～65 DEG C, can suppress the growth and breeding of nitrifier, therefore First Heat Exchanger 2 is provided with this programme,
The heat exchanger tube 2a that the high partial sludge mixture of aerobic sigestion reactor temperature is entered in First Heat Exchanger 2 by pipe fitting
It is interior, heat exchange is carried out with into the sludge in First Heat Exchanger 2, its effect, one is that sludge is preheated, and can save second and change
The energy consumption of hot device 3, two is that the mud mixture temperature after heat exchange is reduced, and then the mud mixture in low temperature passes through
Pipe fitting flows back again in aerobic sigestion reactor 5, and the temperature in aerobic sigestion reactor is adjusted, and can correspondingly reduce
The temperature of oxygen digestion reaction operation process, is beneficial to the growth and breeding of nitrifier, promotes stablizing for nitration reaction to carry out；This
Outward, the optimum PH range of nitrobacteria growth breeding is 7.7～8.1, because sludge aerobic can produce NH when digesting4 +, it is possible to make
PH value is raised in reactor, therefore, acid solution is added by being arranged on the import 5f on the top of aerobic sigestion reactor 5, by acid
Alkali neutralization, makes the sludge in aerobic sigestion reactor be in optimal pH scope.
The waste gas produced in aerobic sigestion reactor is discharged by the waste gas outlet 5g of aerobic sigestion reactor head, enters another
The emission-control equipment of outer setting is processed.
Because the polyP bacteria in sludge is under aerobic condition, the phosphorus in mud mixed liquid can in a large number be absorbed and be accumulated in and be thin
In cell space, and under anaerobic, then phosphorus that can be by accumulation in vivo is discharged.Therefore, sludge is in aerobic sigestion reactor 5
Inside carry out being dehydrated after aerobic sigestion process, be avoided that polyP bacteria discharges phosphorus, so as to be avoided that generation ammoniomagnesium phosphate, prevent
Structure is formed in dehydration equipment, affects dehydration equipment normally to run.
Sludge Jing after the process of aerobic sigestion reactor 5 is dehydrated in device for dehydrating sladge waste 5, outside dehydrated sludge
Fortune is disposed, and is dehydrated the filtrate for producing and is entered sewage disposal system or otherwise processed.
Compared with the prior art, the present invention has following obvious technique effect：
1st, because the present invention is provided with anaerobic digestion reaction vessel 4, aerobic sigestion reactor 5 simultaneously, sludge Jing anaerobic digestions are anti-
Device 4 is answered to carry out after Anaerobic Digestion, entering back into aerobic sigestion reactor 5 carries out aerobic sigestion process, VSS
(VSS) removal efficiency improves the removal efficiency of VSS in sludge (VSS) up to 65～80%,
The content of Organic substance in sludge is significantly reduced, the quality of sludge is reduced.
2nd, change in First Heat Exchanger 2 due to the high partial sludge mixture of temperature in aerobic sigestion reactor 5 being flowed back
Heat pipe 2a, using the heat energy of returned sludge mixture, preheats to sludge, can save the energy consumption of the second heat exchanger 3；Together
When, the mud mixture for reducing temperature is flowed back in aerobic sigestion reactor 5 by pipe fitting, can accordingly reduce aerobic disappearing
Change the temperature of course of reaction, beneficial to the growth and breeding of nitrifier, promote stablizing for nitration reaction to carry out, reduce in reactor
NH3Concentration, is conducive to the stable operation of reactor.
3rd, due to carrying out aerobic sigestion, the NH that aerobic sigestion can be produced to anaerobic digestion after anaerobic digestion3Nitrified,
Significantly reduce the NH in sludge liquor3Concentration, it is to avoid after independent anaerobic and aerobic digestion, produce containing height in sludge dewatering
Concentration NH3Impact of sludge liquor when being back to sewage disposal system to the normal operation of system, or increase sludge liquor
The difficulty of otherwise processed.
4th, by the control to dissolved oxygen concentration in aerobic sigestion reactor, anaerobic environment is formed, is capable of achieving denitrification, made
The nitrate nitrogen and nitrite nitrogen that nitrification is produced generates N2；Or it is continuous under low DO condition, realize synchronous nitration and anti-
Nitrification, realizes denitrogenation.
5th, because sludge is Jing after anaerobic digestion reaction vessel 4 carries out Anaerobic Digestion, enter back into aerobic sigestion reactor 5 and enter
Oxygen digestion reaction of acting charitably process, and be dehydrated after aerobic sigestion, it is avoided that polyP bacteria release phosphorus, effectively anti-anti-avulsion in sludge
Wetting system produces ammoniomagnesium phosphate (guanite) fouling, it is ensured that the normal operation of device for dehydrating sladge waste.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Specific embodiment
Referring to accompanying drawing.
Technical solution of the present invention, including enrichment facility 1, First Heat Exchanger 2, the second heat exchanger 3, anaerobic digestion reaction vessel 4,
Aerobic sigestion reactor 5, sludge dehydration device 6.
The enrichment facility 1 is communicated with the entrance pipe of sludge, and the sludge outlet of enrichment facility 1 is by the first pipe fitting 7 and institute
The sludge import for stating First Heat Exchanger 2 is communicated, and the first pipe fitting 7 is provided with the first delivery pump 7a；In embodiment, enrichment facility 1 can
For existing rotary drum sludge concentrator or floatation thickening equipment etc., by concentration, the moisture in sludge is effectively reduced, increased
Plus sludge concentration, be beneficial to improve subsequent anaerobic digestion reaction and aerobic sigestion reaction speed, improve anaerobic digestion reaction and
The working performance of aerobic sigestion reaction.
There is heat exchanger tube 2a in the First Heat Exchanger 2, the medium that heat exchanger tube 2a has medium entrance and outlet, heat exchanger tube 2a enters
Returned sludge outlet 5a mouthful by the second pipe fitting 8 and on the aerobic sigestion reactor 5 is communicated, and the second pipe fitting 8 is provided with the
The outlet of two delivery pump 8a, heat exchanger tube 2a is by the sludge reflux import 5b phases on the 3rd pipe fitting 9 and aerobic sigestion reactor 5
It is logical, if necessary, delivery pump is set on the 3rd pipe fitting 9；The sludge outlet of the First Heat Exchanger 2 is by the 4th pipe fitting 10 and the
The sludge import of two heat exchangers 3 is communicated, and if necessary, on the 4th pipe fitting 10 delivery pump is arranged；The First Heat Exchanger 2 can be existing
Structured shell-and-tube exchanger.
There are heat pipe 3a, heat pipe 3a to have medium entrance and outlet, the dirt of the second heat exchanger 3 in second heat exchanger 3
Mud outlet is communicated by the 5th pipe fitting 11 with the sludge import on the top of the anaerobic digestion reaction vessel 4；Second heat exchanger 3 is using existing
Structured shell-and-tube exchanger, uses steam as heat source medium.
The sludge outlet that gas outlet 4d, the bottom of anaerobic digestion reaction vessel 4 is arranged at the top of the anaerobic digestion reaction vessel 4 leads to
Cross the 6th pipe fitting 12 to communicate with the sludge import on the top of aerobic sigestion reactor 5, the 6th pipe fitting 12 is provided with the 3rd conveying
Pump 12a；The gas from gas such as the biogas that anaerobic digestion course of reaction is produced outlet 4d is discharged；Anaerobic digestion reaction vessel 4 is provided with
Sludge return type rabbling mechanism 4a, sludge return type rabbling mechanism 4a include backflow pipe fitting 4b, the sludge reflux of the pipe fitting 4b that flows back
Import is communicated with the bottom of the anaerobic digestion reaction vessel 4, sludge reflux outlet and the anaerobic digestion reaction of the pipe fitting 4b that flows back
The top of device 4 communicates, and backflow pipe fitting 4b is provided with circulating pump 4c；The sludge reflux agitating device 4a is by anaerobic digestion reaction vessel 4
The sludge of interior bottom is delivered to the internal upper part of anaerobic digestion reaction vessel 4, and the kinetic energy provided using circulating pump 4c makes to be entered by top
Sludge in anaerobic digestion reaction vessel 4 is stirred to the sludge in anaerobic digestion reaction vessel 4.
Air inlet lines 5c is arranged at the bottom of aerobic sigestion reactor 5, and waste gas outlet 5g is arranged at top, and addition acid solution is arranged at top
Import 5f；In enforcement, the air inlet lines 5c directly can be connected with the lower part wall of aerobic sigestion reactor 5, be provided by blower fan
Pressure air directly can enter 5 times intracavity of aerobic sigestion reactor by air inlet lines 5c；The structure of diagram is, the air inlet lines
The port of export of 5c is connected and communicates with the end (closing on the pipeline section of aerobic sigestion reactor) of the 3rd pipe fitting 9, attachment structure
Can be attached using " venturi " tee T, the tee T of alternatively other structures form is attached, be provided by blower fan
Pressure air is initially entered in the end pipeline section of the 3rd pipe fitting 9, is mixed with the mud mixture in the pipe fitting, mixed with sludge
Compound together enters the cavity of resorption of aerobic sigestion reactor 5；
The inner chamber top of the aerobic sigestion reactor 5 is provided with spraying component 5d, the distribution pipe 5e import in spraying component 5d
Communicated with the outlet of heat exchanger tube 2a in the First Heat Exchanger 2 by the 7th pipe fitting 13；In enforcement, alternatively as depicted,
The import of distribution pipe 5e is communicated with the outlet of the 7th pipe fitting 13, the stage casing of the entrance point of the 7th pipe fitting 13 and the 3rd pipe fitting 9
Connect and communicate；
7th pipe fitting 13 is provided with the first regulating valve 13a, and the back segment of the 3rd pipe fitting 9 is provided with the second regulating valve
9a；Spraying component 5d is adjusted by adjusting the flow of the first valve 13a and the second valve 9a carries out sludge stream required during froth breaking
Amount, when sludge quantity needed for such as when spraying component 5d operations is larger, i.e., relatively turns the flow of the second valve 9a down and tunes up the first tune
Section valve 13a flow, when sludge quantity needed for such as when spraying component 5d operations is less, that is, turn down the first regulating valve 13a flow and
Tune up the flow of the second valve 9a；Needs in operation, sludge froth breaking mode can be continuous way or compartment, when using interval
During the sludge froth breaking mode of formula, within the time period for stopping sludge froth breaking the first regulating valve 13a is closed.
In operation, according to the needs of aerobic sigestion course of reaction, the aerobic sigestion reactor can be by controlling aeration side
Formula or aeration rate (remove the VSS (VSS) in sludge, and carry out nitrifying anti-come the continuous aeration for realizing the present invention
Should), intermittent aerating (removes the VSS (VSS) in sludge, and carries out nitration reaction during aeration；When stopping aeration
Carry out anti-nitration reaction), LDO (DO) (remove sludge in VSS (VSS), nitration reaction, denitrification
Reaction is carried out simultaneously) the continuous three kinds of operating types for running；
The sludge outlet of the aerobic sigestion reactor 5 passes through the sludge of the 8th pipe fitting 14 and the sludge dehydration device 6
Import is communicated, and the 8th pipe fitting 14 is provided with the 4th delivery pump 14a.
Sludge outlet 6a and dehydration liquid outlet 6b is arranged at the bottom of the sludge dehydration device 6,6 pairs of entrance of sludge dehydration device
Sludge is dehydrated, and the body refuse outward transport discharged after dehydration is disposed, and the dehydration liquid discharged after dehydration enters sewage disposal system or another
Row is processed.
Claims (6)
1. sewage sludge processing meanss, is characterized in that：Including enrichment facility (1), First Heat Exchanger (2), the second heat exchanger (3),
Anaerobic digestion reaction vessel (4), aerobic sigestion reactor (5), sludge dehydration device (6)；
The enrichment facility (1) communicates with the entrance pipe of sludge, sludge outlet and the First Heat Exchanger of enrichment facility (1)
(2) sludge import is communicated；
There is heat exchanger tube (2a) in the First Heat Exchanger (2), heat exchanger tube (2a) has medium entrance and outlet, Jie of heat exchanger tube (2a)
Matter import with the aerobic sigestion reactor (5) returned sludge outlet (5a) communicate, the outlet of heat exchanger tube (2a) with it is aerobic
Sludge reflux import (5b) on digestion reactor (5) is communicated, the sludge outlet and the second heat exchanger of the First Heat Exchanger (2)
(3) sludge import is communicated；
There is heat pipe (3a) in second heat exchanger (3), heat pipe (3a) has medium entrance and outlet, the second heat exchanger (3)
Sludge outlet communicate with the sludge import of the anaerobic digestion reaction vessel (4)；
There are gas outlet (4d), the sludge outlet of anaerobic digestion reaction vessel (4) and institute at the top of the anaerobic digestion reaction vessel (4)
The sludge import for stating aerobic sigestion reactor (5) is communicated；
Air inlet lines (5c) are arranged at aerobic sigestion reactor (5) bottom, and waste gas outlet (5g) is arranged at top, and top has addition acid molten
The import (5f) of liquid, the sludge outlet of aerobic sigestion reactor (5) is communicated with the sludge import of the sludge dehydration device (6)；
Sludge outlet (6a) and dehydration liquid outlet (6b) are arranged at sludge dehydration device (6) bottom.
2., according to the sewage sludge processing meanss described in claim 1, it is characterized in that：
The sludge outlet of the enrichment facility (1) passes through the sludge import phase of the first pipe fitting (7) and the First Heat Exchanger (2)
Logical, the first pipe fitting (7) is provided with the first delivery pump (7a)；
The medium entrance of the heat exchanger tube (2a) is dirty with the backflow on the aerobic sigestion reactor (5) by the second pipe fitting (8)
Mud outlet (5a) is communicated, and the second pipe fitting (8) is provided with the second delivery pump (8a), and the outlet of heat exchanger tube (2a) passes through the 3rd pipe fitting
(9) communicate with the sludge reflux import (5b) on aerobic sigestion reactor (5)；
The sludge outlet of second heat exchanger (3) is by the 5th pipe fitting (11) and the anaerobic digestion reaction vessel (4) top
Sludge import is communicated；
The sludge outlet of anaerobic digestion reaction vessel (4) bottom is by the 6th pipe fitting (12) and the aerobic sigestion reactor
(5) the sludge import on top is communicated, and the 6th pipe fitting (12) is provided with the 3rd delivery pump (12a)；
The sludge outlet of the aerobic sigestion reactor (5) passes through the dirt of the 8th pipe fitting (14) and the sludge dehydration device (6)
Mud import is communicated, and the 8th pipe fitting (14) is provided with the 4th delivery pump (14a).
3., according to the sewage sludge processing meanss described in claim 2, it is characterized in that：Set on the anaerobic digestion reaction vessel (4)
There is sludge return type rabbling mechanism (4a), sludge return type rabbling mechanism (4a) includes backflow pipe fitting (4b), backflow pipe fitting (4b)
Sludge reflux import communicate with the anaerobic digestion reaction vessel (4) bottom, flow back pipe fitting (4b) sludge reflux outlet and institute
State anaerobic digestion reaction vessel (4) top to communicate, backflow pipe fitting (4b) is provided with circulating pump (4c).
4., according to the sewage sludge processing meanss described in claim 3, it is characterized in that：Aerobic sigestion reactor (5) inner chamber
Top is provided with spraying component (5d), and distribution pipe (5e) import in spraying component (5d) passes through the 7th pipe fitting (13) and described first
The outlet of the interior heat exchanger tube (2a) of heat exchanger (2) is communicated.
5., according to the sewage sludge processing meanss described in claim 3, it is characterized in that：Aerobic sigestion reactor (5) inner chamber
Top is provided with spraying component (5d), and distribution pipe (5e) import in spraying component (5d) is communicated with the outlet of the 7th pipe fitting (13),
The entrance point of the 7th pipe fitting (13) is connected and communicates with the stage casing of the 3rd pipe fitting (9).
6., according to the sewage sludge processing meanss described in claim 4 or 5, it is characterized in that：7th pipe fitting (13) is provided with
First regulating valve (13a), the back segment of the 3rd pipe fitting (9) is provided with the second regulating valve (9a).
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| CN201611196276.7A CN106587555A (en) | 2016-12-22 | 2016-12-22 | Sewage sludge treatment device |
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|---|---|---|---|
| CN201611196276.7A CN106587555A (en) | 2016-12-22 | 2016-12-22 | Sewage sludge treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113354242A (en) * | 2021-05-21 | 2021-09-07 | 曲阜中联水泥有限公司 | Sludge treatment system and treatment method |
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| CN113354242A (en) * | 2021-05-21 | 2021-09-07 | 曲阜中联水泥有限公司 | Sludge treatment system and treatment method |
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