CN105819637B - High mass dryness fraction sewage sludge processing unit - Google Patents
High mass dryness fraction sewage sludge processing unit Download PDFInfo
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- CN105819637B CN105819637B CN201511015319.2A CN201511015319A CN105819637B CN 105819637 B CN105819637 B CN 105819637B CN 201511015319 A CN201511015319 A CN 201511015319A CN 105819637 B CN105819637 B CN 105819637B
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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
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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
- C02F11/006—Electrochemical treatment, e.g. electro-oxidation or electro-osmosis
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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
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
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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
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/125—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using screw filters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment Of Sludge (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a kind of high mass dryness fraction sewage sludge processing unit, including reactive gas generator（1）, helix filter device（2）, oxidation cylinder（3）With extra-high voltage permeating and dewatering device（4）, the helix filter device（2）Including helical axis（2.1）, helical blade（2.2）And spiral cylinder（2.3）, helical axis（2.1）It is installed on spiral cylinder（2.3）Interior, described helical blade（2.2）It is arranged on helical axis and is arranged in helical axis between spiral cylinder inner wall, helical axis is hollow, and end inlet is connected with reactive gas generator, and the venthole being passed through for active gases, spiral cylinder are equipped on spiral axial wall（2.3）End with oxidation cylinder（3）It is connected, the helix filter device（2）For double-spiral structure, cylinder is aoxidized（3）Outlet and extra-high voltage permeating and dewatering device（4）It is connected.The present invention it is applied widely, low energy consumption, beneficial to sludge reduction, treated, and moisture percentage in sewage sludge is low.
Description
Technical field
The present invention relates to sewage sludge process field, specifically a kind of high mass dryness fraction sewage sludge processing unit.
Background technology
Cut-off 2015, China's sludge quantity reaches 40,000,000 tons（80% moisture content）, it is contemplated that it is up to 60,000,000 to the year two thousand twenty
Ton, so huge sludge cannot such as be properly settled, and will be that environment brings significant impact, also as people's production and living
One big burden.Due to the High water cut of sludge, dehydration hardly possible, rich in organic matter, easily corruption, production stench；Containing pathogenic microorganism and again
The pollutants such as metal so that the disposal and processing of sludge are very troublesome.
According to China《Urban sewage treatment plant sludge processing disposal and pollution prevention technique policy》, at city sludge processing
Put stabilisation to be followed, minimizing, innoxious, recycling principle, moisture percentage in sewage sludge requirement is dropped to less than 60% do again it is final
Disposal.It is particularly stringenter by national " 13 " planning requirement.Current specific resistance to filtration technology path is numerous, including detesting
Oxygen digestion, pyrohydrolysis+anaerobic digestion, biological compost, sludge are baked bricks, dehydration+landfill, heat drying+burning, cement collaboration burn,
Carbonization etc., moisture content height are the where the shoe pinches of Treatment of Sludge, and sludge reduction is the basis of other " four change ".Either at which kind of
Mode is put, reduces moisture percentage in sewage sludge, it is all maximum, most basic premise that sludge progress minimizing, which is handled, deeply dehydrating sludge
One of it is the key that the disposal of sludge subsequent processing, be also the biggest problem.
Since the moisture of sludge and common Sandy Soil Moisture nature difference are larger, the moisture contained in sludge includes Interstitial Water
（70%）, capillary water（20%）, absorption water（7%）, internal water（3%）, Interstitial Water is not with solid directly in conjunction with thus passing through machinery
Method is more easily separated, and capillary water, surface adsorption water, internal water are irreducible water, is difficult removal by common mechanical means.Institute
To generally require to give early period using other methods and pre-process.
Current common mechanical dehydration mode and equipment mainly have belt type filter dehydration, centrifugal dehydration, plate compression dehydration
Three categories.For municipal sludge, the filter cake moisture content after band filter, folded spiral shell dewaterer, centrifuge dewatering about exists
75%-80%, the moisture percentage in sewage sludge of diaphragm plate frame filter press dehydration is generally 60% or so.Superelevation compression elasticity squeezer is a kind of pressure
Power bigger, more efficient filtering equipment and solid-liquid separating equipment, whole process are broadly divided into charging -- elasticity squeezing -- and connect
The Four processes such as liquid -- discharging.The equipment pressure is directly from the pressure of hydraulic cylinder, and directly to squeeze, squeeze pressure can reach
The 5-7 MPa single batch work periods are 1.0 ~ 1.5h, and work efficiency is 3-4 times of diaphragm filter press, dehydrated sludge moisture content
50% or so can be reached.But there are the problems such as energy consumption is big, equipment cost is high, squeezing spring needs to be replaced frequently.
Using it is above-mentioned it is general generally require to add substantial amounts of ferric trichloride and lime early period, for over dry sludge amount in fact
It is increased, violates the minimizing principle of sludge；In addition the medicament added for follow-up burning, recycling of sludge etc. all
Adverse effect is brought, is generally only used for filling.So it is one using the processing mode of addition medicament deep dehydration+landfill
A emergent plan, and it is used as long-term plan then improper.In view of this, it is necessary to provide a kind of new thinking to carry out the place of sludge
Reason disposal, lays the foundation for the recycling of sludge.
Currently, electroosmotic dewatering is carried out to sludge there is also some problems, mainly equipment galvano-cautery is serious, maintenance capacity mistake
The shortcomings of the problems such as big, the technology is in the presence of using electric energy and excessive energy consumption in addition, the reasons such as dehydration efficiency is not high, there is presently no
It is used widely.
The content of the invention
In view of this, present invention dehydrated sludge moisture content existing for the above-mentioned prior art is excessively high, vulnerable part is more, energy
Consumption is big, and the problem of be unfavorable for minimizing, provide it is a kind of it is applied widely, low energy consumption, aqueous beneficial to sludge reduction, sludge
The low high mass dryness fraction sewage sludge processing unit of rate.
The technical solution of the present invention is to provide a kind of high mass dryness fraction sewage sludge processing unit with lower structure, including
Reactive gas generator, helix filter device, oxidation cylinder and extra-high voltage permeating and dewatering device, the helix filter device
Including helical axis, helical blade and spiral cylinder, the helical axis is installed in spiral cylinder, and the helical blade is set
It on helical axis and is arranged between helical axis and spiral cylinder inner wall, the helical axis is hollow, end inlet and work
Property gas generator be connected, and the venthole being passed through for active gases is equipped on spiral axial wall, the spiral cylinder
End is connected with oxidation cylinder；The helix filter device is double-spiral structure, and the helical axis and helical blade are
Two sets, two helical axis parallel arrangeds, helical blade intermeshes insertion, and the helical blade on one of helical axis is embedded into
In slot between the helical blade of another helical axis；One of helical axis is extended in the oxidation cylinder, the oxygen
The outlet for changing cylinder is connected with extra-high voltage permeating and dewatering device.
Using more than structure, compared with prior art, the present invention haing the following advantages：（1）By active gases to sludge
It being aoxidized, destroys the cell membrane of sludge, release the internal water of sludge so that internal water becomes feasible to the Interstitial Water of filtering,
The high mass dryness fraction dehydration of sludge can be achieved；（2）It is aoxidized using active gases, such as ferric trichloride, lime, flocculant need not be added
Medicament can save medicament expense, and advantageous effects are generated simultaneously for the follow-up disposal of sludge and recycling；（3）Due to preceding
For section equipment using helix filter device, the moisture percentage in sewage sludge scope of application is wider, moisture percentage in sewage sludge can between 80%-99% into
Traveling wave is moved；（4）The treatment process coupled using active gases, electro-osmosis and high-pressure compressing, active gases destroy the cell of sludge
Wall releases internal water, and electro-osmosis can effectively handle absorption water, capillary water and Interstitial Water, and high-pressure compressing can be fast by moisture
Speed squeezes out, which can carry out good processing to four kinds of moisture of sludge so that export as high mass dryness fraction
Sludge.
Preferably, the extra-high voltage permeating and dewatering device includes super-pressure dewatering device and electro-osmosis mechanism, institute
The electro-osmosis mechanism stated is installed in super-pressure dewatering device, into extra-high voltage permeating and dewatering device sewage sludge in electric osmose
After capillary water and absorption water are precipitated under the action of saturating mechanism, superelevation press-dehydrating is carried out in super-pressure dewatering device, obtains high level cadre
Spend sludge.Extra-high voltage permeating and dewatering device is exactly the coupling of super-pressure dewatering device and electro-osmosis mechanism, realizes electro-osmosis
With the synergistic effect of superelevation press-dehydrating, effectively for capillary water, absorption water and internal water, sludge mass dryness fraction is further improved.
Preferably, the spiral cylinder, with being equipped with backboard at the connector of oxidation cylinder, the backboard is in elastic member
The connector is propped up under the action of part, positioning plate is installed on helical axis, the backboard is sheathed on helical axis, described
Elastic element one end be connected on positioning plate, the other end is connected on backboard.The back segment of helix filter device is extrusion dehydration,
Oxidation of the active gases to organic matter in sludge is realized in dehydration simultaneously so that the internal water of sludge is released, in bullet
Property backboard under the action of, further carry out extruding filtering means dehydration, back of the body platen pressure is set between 0.1-0.6MPa, by dehydration
Sludge overcomes backboard pressure to enter oxidation cylinder.
Preferably, the back segment of the helical axis is set for reducing, its diameter of axle progressively becomes larger after going to certainly；The helical-blade
The back segment of piece is distance changing mechanism, its blade pitgh progressively reduces after going to certainly.After the gravity dehydration for undergoing leading portion, due in back segment
The diameter of axle of helical axis becomes larger, the spacing of helical blade becomes smaller, then the cavity that helical axis, helical blade and spiral cylinder are formed is then
Progressively become smaller, with the feeding of sewage sludge, the pressure for being subject to helix filter device is also just increasing, contributes to further
Dehydration.
Preferably, it is provided with gas supervisor, gas supervisor extending into the oxidation in vivo spiral shaft portion of cylinder
On be placed with gas service pipe, the gas is responsible for being connected in helical axis, and gas supervisor is perpendicular to helical axis, institute
The oxidation cylinder stated is cylindrical shape.By the setting of gas supervisor and gas service pipe, active gases can enter gas from helical axis
Body is responsible for and gas service pipe, and convenient for being sufficiently oxidized, simultaneously because helical axis can drive gas supervisor's rotation, oxidation cylinder is set
It is set to the mutual coordinated of design that cylindrical shape can be responsible for gas.
Preferably, the super-pressure dewatering device include high-pressure compressing cylinder, stripper plate, support plate, high-voltage oil cylinder,
Filter cloth, discharge oil cylinder and booster, the stripper plate and support plate are arranged in high-pressure compressing cylinder, the high-pressure compressing cylinder
Body, stripper plate and gripper shoe groups are connected into press filtration cavity, the stripper plate with the piston rod of high-voltage oil cylinder, the support
Plate is connected with the piston rod of discharge oil cylinder, and the stripper plate and support plate are both provided with the hole supplied water and distributed, and are squeezing
Pressing plate and support plate are covered with filter cloth respectively, and the booster is connected with high-voltage oil cylinder, to be pressurized to high-voltage oil cylinder.
Preferably, the electro-osmosis mechanism includes DC power supply generator, anode plate and cathode plate, DC power supply hair
Anode, the cathode of raw device are electrically connected respectively with anode plate, cathode plate, and the anode plate is fixed on stripper plate, described the moon
Pole plate is fixed on the supporting plate, and between anode plate and stripper plate, insulator, anode are both provided between cathode plate and support plate
Insulator is also equipped between plate, cathode plate and high-pressure compressing cylinder, water supply is also offered in the anode plate and cathode plate
The hole distributed.
Preferably, being additionally provided with limit switch on the piston rod of the high-voltage oil cylinder, the high-pressure compressing cylinder is set
The one end for putting support plate is additionally provided with quick-opening device, and the quick-opening device is connected with support plate for that can open soon.In such manner, it is possible to make
Support plate switches between static and dynamic.
Preferably, the upper helical blade set of two helical axis is hollow twi-tier blade, helical blade it is hollow
Part is connected with helical axis, and equipped with the corresponding hole of venthole with being opened up on helical axis.
Preferably, the active gases that the reactive gas generator generates is ozone, every gram of sludge suspension solid is extremely
30 milligrams of ozone are needed less, and the reaction time was at 30-60 minutes in equipment.Using ozone as active gases, and set corresponding
Concentration limit --- 30mgO3/gMLSS can be realized fully oxidized.
Description of the drawings
Fig. 1 is the structure diagram of the high mass dryness fraction sewage sludge processing unit of the present invention；
Fig. 2 is double-stranded helix filter device；
Fig. 3 is the partial enlarged view of helix filter device；
Fig. 4 is the structure diagram of spiral axial brake device；
As shown in the figure, 1, reactive gas generator, 2, helix filter device, 2.1, helical axis, 2.2, helical blade, 2.3,
Spiral cylinder, 3, oxidation cylinder, 4, extra-high voltage permeating and dewatering device, 4.1, high-pressure compressing cylinder, 4.2, stripper plate, 4.3, branch
Fagging, 4.4, high-voltage oil cylinder, 4.5, discharge oil cylinder, 4.6, booster, 4.7, DC power supply generator, 4.8, anode plate, 4.9,
Cathode plate, 4.10, limit switch, 4.11, quick-opening device, 5, air vessel, 6, backboard, 7, elastic element, 8, positioning plate, 9, gas
Body is responsible for, and 10, gas service pipe, 11, gas purifier, 12, motor, 13, drive gear, 14, driving gear, 15, tumbler gear,
16th, driven gear.
Specific embodiment
The invention will be further described in the following with reference to the drawings and specific embodiments.
The present invention covers any replacement, modification, equivalent method and scheme made in the spirit and scope of the present invention.For
The public is made to have thorough understanding to the present invention, is described in detail concrete details in present invention below preferred embodiment, and
Description without these details can also understand the present invention completely for a person skilled in the art.In addition, the attached drawing of the present invention
In for the needs of signal, not being drawn to scale accurately completely, be explained herein.
As shown in Figure 1, a kind of high mass dryness fraction sewage sludge processing unit of the present invention, including reactive gas generator 1, spiral
Filter device 2, oxidation cylinder 3 and extra-high voltage permeating and dewatering device 4, the helix filter device 2 include helical axis 2.1,
Helical blade 2.2 and spiral cylinder 2.3, the helical axis 2.1 are installed in spiral cylinder 2.3, the helical blade 2.2
It is arranged on helical axis 2.1 and is arranged in helical axis 2.1 between 2.3 inner wall of spiral cylinder, during the helical axis 2.1 is
Sky, end inlet are connected with reactive gas generator 1, and the ventilation being passed through for active gases is equipped on spiral axial wall
Hole, the end of the spiral cylinder 2.3 are connected with oxidation cylinder 3, and the helical axis 2.1 extends to the oxidation cylinder 3
Interior, the outlet of the oxidation cylinder 3 is connected with extra-high voltage permeating and dewatering device 4.
The sewage sludge treatment system further includes air vessel 5, the air vessel 5 also with helical axis 2.1
End inlet is connected, and the active gases to be generated with reactive gas generator 1 mixes, so as to control within the unit interval
Into the active gases amount of system, and then adjust concentration of the active gases in sewage sludge.
The active gases that the reactive gas generator 1 generates is ozone, and every gram of sludge suspension solid at least needs 30
Milligram ozone（30mgO3/gMLSS）, the reaction time was at 30-60 minutes in equipment.Using ozone as active gases, and set
Corresponding concentration limit --- 30mgO3/gMLSS, MLSS is mixed genetic-neural network.
The upper end of oxidation cylinder is provided with gas purifier 11, and the mixed gas after oxidation is finally from gas purifier 11
Discharge, is discharged after discharge standard is reached.
The extra-high voltage permeating and dewatering device 4 includes super-pressure dewatering device and electro-osmosis mechanism, the electric osmose
Saturating mechanism is installed in super-pressure dewatering device, into extra-high voltage permeating and dewatering device sewage sludge in electro-osmosis mechanism
After the lower precipitation capillary water of effect and absorption water, superelevation press-dehydrating is carried out in super-pressure dewatering device, obtains high mass dryness fraction sludge.It is super
High pressure electroosmotic dewatering device is exactly the coupling of super-pressure dewatering device and electro-osmosis mechanism, can realize electro-osmosis and super-pressure
The synergistic effect of dehydration.
The spiral cylinder 2.3 at the connector of oxidation cylinder 3 with being equipped with backboard 6, and the backboard 6 is in elastic element 7
Under the action of prop up the connector, positioning plate 8 is installed on helical axis 2.1, the backboard 6 is sheathed on helical axis 2.1
On, described 7 one end of elastic element is connected on positioning plate 8, and the other end is connected on backboard 6.The back segment of helix filter device
For extrusion dehydration, oxidation of the active gases to organic matter in sludge is realized simultaneously in dehydration so that the internal water quilt of sludge
Release, under the action of elastic backboard, further carry out extruding filtering means dehydration, back of the body platen pressure be set in 0.1-0.6MPa it
Between, by dewatered sludge backboard pressure is overcome to enter oxidation cylinder.The elastic element 7 uses spring to realize, but unlimited
In a kind of this realization method.
The back segment of the helical axis 2.1 is set for reducing, its diameter of axle progressively becomes larger after going to certainly；The helical blade 2.2
Back segment for distance changing mechanism, its blade pitgh progressively reduces after going to certainly.After the gravity dehydration for undergoing leading portion, due in back segment spiral shell
The diameter of axle of spin axis becomes larger, the spacing of helical blade becomes smaller, then the cavity that helical axis, helical blade and spiral cylinder are formed then by
Step becomes smaller, and with the feeding of sewage sludge, the pressure for being subject to helix filter device is also just increasing, helps further to take off
Water.
Gas supervisor 9 is provided with extending into the spiral shaft portion in oxidation cylinder 3, is arranged on gas supervisor 9
There is gas service pipe 10, gas supervisor 9 in helical axis 2.1 with being connected, and gas supervisor 9 is perpendicular to helical axis
2.1, the oxidation cylinder 3 is cylindrical shape.By the setting of gas supervisor and gas service pipe, active gases can be from helical axis
Into gas supervisor and gas service pipe, convenient for being sufficiently oxidized.A wherein gas service pipe on gas supervisor is close to aoxidize cylinder
On internal wall, the sludge being sticked on barrel can be scraped off using the gas service pipe for being close to aoxidize cylinder.
The super-pressure dewatering device includes high-pressure compressing cylinder 4.1, stripper plate 4.2, support plate 4.3, high-voltage oil cylinder
4.4th, filter cloth, discharge oil cylinder 4.5 and booster 4.6, the stripper plate 4.2 and support plate 4.3 are arranged at high-pressure compressing cylinder
In 4.1, the high-pressure compressing cylinder 4.1, stripper plate 4.2 and support plate 4.3 form press filtration cavity, the stripper plate 4.2 with
The piston rod of high-voltage oil cylinder 4.4 is connected, and the support plate 4.3 is connected with the piston rod of discharge oil cylinder 4.5, and described squeezes
Pressing plate 4.2 and support plate 4.3 are both provided with the hole supplied water and distributed, and are covered with filter respectively in stripper plate 4.2 and support plate 4.3
Cloth, the booster 4.6 are connected with high-voltage oil cylinder 4.4, to be pressurized to high-voltage oil cylinder 4.4.
The electro-osmosis mechanism includes DC power supply generator 4.7, anode plate 4.8 and cathode plate 4.9, DC power supply hair
Anode, the cathode of raw device 4.7 are electrically connected respectively with anode plate 4.8, cathode plate 4.9, and the anode plate 4.8 is fixed on stripper plate
On 4.2, the cathode plate 4.9 is fixed in support plate 4.3, between anode plate 4.8 and stripper plate 4.2, cathode plate 4.9 with branch
Insulator is both provided between fagging 4.3, is also equipped between anode plate 4.8, cathode plate 4.9 and high-pressure compressing cylinder 4.1 absolutely
Edge body also offers the hole supplied water and distributed on the anode plate 4.8 and cathode plate 4.9.The voltage of electro-osmosis is 40-60V.
Limit switch 4.10 is additionally provided on the piston rod of the high-voltage oil cylinder 4.4, the high-pressure compressing cylinder 4.1 is set
The one end for putting support plate is additionally provided with quick-opening device 4.11, and the quick-opening device 4.11 is connected with support plate 4.3 for that can open soon.
As shown in Fig. 2, double-stranded helix filter device is illustrated, the helical axis 2.1 and helical blade 2.2
For two sets, two 2.1 parallel arrangeds of helical axis, helical blade 2.2 intermeshes insertion, the spiral shell on one of helical axis 2.1
Vane piece 2.2 is embedded into the slot between the helical blade 2.2 of another helical axis 2.1.Two helical blades can be clear mutually
It washes, filtering filter cloth is equipped on the inside of spiral cylinder, filtering filter cloth is close to be fixed on the inner wall of spiral cylinder, for 360 degree of arrangements, spiral shell
The fluid bore of multiple outflows of supplying water is offered on rotation cylinder.When being arranged to double-spiral structure in Fig. 2, then the shape of spiral cylinder
Also it is engaged with the helical axis of double helix and helical blade.
As shown in figure 3, illustrate the partial enlarged view of helix filter device, helical axis 2.1 through spiral cylinder 2.3 and
Cylinder 3 is aoxidized, helical axis 2.1, which is mounted on, to be located at respectively on the bearing of spiral cylinder 2.3 and oxidation cylinder 3, entire helical axis 2.1
The helical blade 2.2 of upper setting is hollow twi-tier blade, and the hollow space of helical blade 2.2 is connected with helical axis 2.1, and
Equipped with the corresponding hole of venthole with being opened up on helical axis 2.1.A fairly large number of gas is offered on entire helical axis 2.1
Hole also offers multiple holes on each helical blade 2.2 so that active air comes into full contact with sludge, increases mass transfer effect.
As shown in figure 4, illustrating one embodiment of spiral axial brake device, spiral axial brake device is used to drive spiral
Axis rotates, and Fig. 4 structures are dedicated for the spiral axial brake device with double-spiral structure cooperation in Fig. 2.The screw drives dress
It puts including motor 12, drive gear 13, driving gear 14, tumbler gear 15, driven gear 16, motor 12 is variable-frequency motor, electric
Machine rotating speed can be adjusted as needed.The driving gear 14 driving equal, described with driven 16 wheel gear number of the gear teeth
Gear 13 and driven gear 16 are respectively used to two helical axis of driving, i.e., are engaged with the gear on helical axis.Using the mechanism, make
It is consistent to obtain the rotating speed of two helical axis, and is unlikely to generate and interferes with each other phenomenon.
It should be noted that in the present invention with active gases（Ozone）The rigid element of contact, may be employed corrosion resistance
Strong stainless steel for example, the ferrochrome effect containing 25%Cr is preferable, substantially will not can be extended equipment by ozone corrosion
Service life.For in the system, being related to the position of sealing, corrosion resistant silicon rubber can be used or add the rubber system of corrosion resistant agent
Product seal.
The processing method or operation principle of the present invention is as follows：
1st, moisture content is high（95%-99%）Sludge enter from the feed inlet of spiral cylinder, the feed inlet is located at spiral
It above the front end of cylinder, is entered by feed inlet in spiral cylinder, in the leading portion of helix filter device, sewage sludge is in weight
It is dehydrated under power effect, moisture is by filter cloth, and mud granule is then stayed in spiral cylinder；
2nd, sludge is pushed ahead under the promotion of helical blade, and sludge water content gradually removes during propulsion, in spiral shell
The back segment of vane piece as helical blade spacing reduces and spiral shaft diameter increases, is squeezed sludge except gravity,
There is extrusion dehydration at this time；
3rd, in spiral cylinder end, sludge carries out collection coalescence and squeezes mutually, and under backboard effect, sludge is subject to certain back of the body
Pressure, at this time sludge be pressed further by being dehydrated, when sludge is cumulative, pressure be more than backboard pressure, backboard open, sludge quilt
It is expressed into oxidation large cylinder；
4th, during gravity dehydration and extrusion dehydration, active gases is passed through from helical axis, and sludge is aoxidized, will
Cell in sludge carries out broken wall, releases internal water and becomes Interstitial Water, which is easily removed by mechanical presses mode；
5th, sludge is entered in oxidation cylinder, since in spiral cylinder, sludge oxidation is insufficient, in gas supervisor and gas
Under the stirring action of body branch pipe, active gas further aoxidize sludge, to realize the fully oxidized of sludge；
6th, the sludge after being substantially oxidized enters in extra-high voltage permeating and dewatering device and carries out press dewatering, squeeze pressure
For 3-5MPa, stripper plate squeezes sludge under high-voltage oil cylinder effect, and flashboard is closed at this time, and sludge is subject to high pressure to act on
Lower moisture gradually removes.
7th, DC power supply is initially powered up at the beginning of high-pressure compressing, and positive electricity is led on anode plate, leads to negative electricity on cathode plate,
Moisture positively charged, and sludge is negatively charged, is not easy in sludge by the capillary water of mechanical force removing, absorption water etc. under electric field force effect
It is run toward cathode plate direction, and sludge stays in anode plate one side, direct current power source voltage 40-60V.
8th, as the progress of squeezing, sludge are extruded very real, booster is had an effect at this time, further increases pressure,
Pressure can reach more than 5MPa at this time.
9th, after being dehydrated, quick-opening device is opened, and spoil disposal oil cylinder pulls support plate, and high-voltage oil cylinder discharges sludge, is completed
Whole process.
Only preferred embodiments of the present invention are described above, but are not to be construed as limiting the scope of the invention.This
Invention is not only limited to above example, and concrete structure is allowed to vary.In short, all guarantors in independent claims of the present invention
The various change made in the range of shield is within the scope of the present invention.
Claims (10)
1. a kind of high mass dryness fraction sewage sludge processing unit, including reactive gas generator（1）, helix filter device（2）, oxidation cylinder
Body（3）With extra-high voltage permeating and dewatering device（4）, it is characterised in that：The helix filter device（2）Including helical axis
（2.1）, helical blade（2.2）And spiral cylinder（2.3）, the helical axis（2.1）It is installed on spiral cylinder（2.3）It is interior, institute
The helical blade stated（2.2）It is arranged on helical axis（2.1）It goes up and is arranged in helical axis（2.1）With spiral cylinder（2.3）Inner wall it
Between, the helical axis（2.1）To be hollow, end inlet and reactive gas generator（1）It is connected, and on spiral axial wall
Equipped with the venthole being passed through for active gases, the spiral cylinder（2.3）End with oxidation cylinder（3）It is connected；It is described
Helix filter device（2）For double-spiral structure, the helical axis（2.1）And helical blade（2.2）For two sets, two spirals
Axis（2.1）Parallel arranged, helical blade（2.2）Intermesh insertion, one of helical axis（2.1）On helical blade
（2.2）It is embedded into another helical axis（2.1）Helical blade（2.2）Between slot in；One of helical axis（2.1）Prolong
Extend the oxidation cylinder（3）It is interior, the oxidation cylinder（3）Outlet and extra-high voltage permeating and dewatering device（4）It is connected.
2. high mass dryness fraction sewage sludge processing unit according to claim 1, it is characterised in that：The extra-high voltage infiltration
Dehydration device（4）Including super-pressure dewatering device and electro-osmosis mechanism, the electro-osmosis mechanism is installed on superelevation pressing dehydrator
In structure, capillary water and absorption water is precipitated in the sewage sludge into extra-high voltage permeating and dewatering device under the action of electro-osmosis mechanism
Afterwards, superelevation press-dehydrating is carried out in super-pressure dewatering device, obtains high mass dryness fraction sludge.
3. high mass dryness fraction sewage sludge processing unit according to claim 1 or 2, it is characterised in that：The spiral cylinder
（2.3）With aoxidizing cylinder（3）Connector at be equipped with backboard（6）, the backboard（6）In elastic element（7）Under the action of support
Connector is stated in residence, in helical axis（2.1）On positioning plate is installed（8）, the backboard（6）It is sheathed on helical axis（2.1）On,
The elastic element（7）One end is connected to positioning plate（8）On, the other end is connected to backboard（6）On.
4. high mass dryness fraction sewage sludge processing unit according to claim 1, it is characterised in that：The helical axis（2.1）'s
Back segment is set for reducing, its diameter of axle progressively becomes larger after going to certainly；The helical blade（2.2）Back segment for distance changing mechanism, before
Its blade pitgh progressively reduces backward.
5. high mass dryness fraction sewage sludge processing unit according to claim 1, it is characterised in that：Extending into oxidation cylinder
（3）Interior spiral shaft portion is provided with gas supervisor（9）, described gas supervisor（9）On be placed with gas service pipe（10）, it is described
Gas supervisor（9）With helical axis（2.1）Inside it is connected, gas supervisor（9）Perpendicular to helical axis（2.1）, it is described
Aoxidize cylinder（3）For cylindrical shape.
6. high mass dryness fraction sewage sludge processing unit according to claim 2, it is characterised in that：The superelevation pressing dehydrator
Structure includes high-pressure compressing cylinder（4.1）, stripper plate（4.2）, support plate（4.3）, high-voltage oil cylinder（4.4）, filter cloth, discharge oil cylinder
（4.5）And booster（4.6）, the stripper plate（4.2）And support plate（4.3）It is arranged at high-pressure compressing cylinder（4.1）It is interior, institute
State high-pressure compressing cylinder（4.1）, stripper plate（4.2）And support plate（4.3）Form press filtration cavity, the stripper plate（4.2）With
High-voltage oil cylinder（4.4）Piston rod be connected, the support plate（4.3）With discharge oil cylinder（4.5）Piston rod be connected, institute
The stripper plate stated（4.2）And support plate（4.3）The hole supplied water and distributed is both provided with, and in stripper plate（4.2）And support plate
（4.3）Filter cloth, the booster are covered with respectively（4.6）With high-voltage oil cylinder（4.4）It is connected, with to high-voltage oil cylinder（4.4）
Supercharging.
7. the high mass dryness fraction sewage sludge processing unit according to claim 2 or 6, it is characterised in that：The electro-osmosis machine
Structure includes DC power supply generator（4.7）, anode plate（4.8）And cathode plate（4.9）, DC power supply generator（4.7）Anode,
Cathode respectively with anode plate（4.8）, cathode plate（4.9）Electrical connection, the anode plate（4.8）It is fixed on stripper plate（4.2）On,
The cathode plate（4.9）It is fixed on support plate（4.3）On, anode plate（4.8）With stripper plate（4.2）Between, cathode plate（4.9）
With support plate（4.3）Between be both provided with insulator, anode plate（4.8）, cathode plate（4.9）With high-pressure compressing cylinder（4.1）It
Between be also equipped with insulator, the anode plate（4.8）And cathode plate（4.9）On also offer the hole that distributes of supplying water.
8. high mass dryness fraction sewage sludge processing unit according to claim 6, it is characterised in that：The high-voltage oil cylinder
（4.4）Piston rod on be additionally provided with limit switch（4.10）, the high-pressure compressing cylinder（4.1）One end of support plate is set also
It is provided with quick-opening device（4.11）, the quick-opening device（4.11）With support plate（4.3）For connection can be opened soon.
9. the high mass dryness fraction sewage sludge processing unit according to claim 1 or 4, it is characterised in that：Two helical axis（2.1）
The helical blade of upper setting（2.2）For hollow twi-tier blade, helical blade（2.2）Hollow space and helical axis（2.1）Phase
Connection, and be equipped with and helical axis（2.1）On the corresponding hole of venthole that opens up.
10. high mass dryness fraction sewage sludge processing unit according to claim 1, it is characterised in that：The active gases hair
Raw device（1）The active gases of generation is ozone, and every gram of sludge suspension solid at least needs 30 milligrams of ozone, when being reacted in equipment
Between at 30-60 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511015319.2A CN105819637B (en) | 2015-12-31 | 2015-12-31 | High mass dryness fraction sewage sludge processing unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511015319.2A CN105819637B (en) | 2015-12-31 | 2015-12-31 | High mass dryness fraction sewage sludge processing unit |
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| CN105819637A CN105819637A (en) | 2016-08-03 |
| CN105819637B true CN105819637B (en) | 2018-05-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108191201A (en) * | 2018-01-15 | 2018-06-22 | 湖南望隆企业管理咨询有限公司 | A kind of squash type sludge-dewatering dryer |
| CN109304885B (en) * | 2018-12-04 | 2024-02-13 | 君集环境科技股份有限公司 | Powder active carbon semi-wet carbon mechanical stirring extrusion dehydration conveying device |
| CN112607996B (en) * | 2020-12-16 | 2022-05-13 | 北京城市排水集团有限责任公司 | Thermal hydrolysis advanced anaerobic digestion and pyrolysis carbonization coupling process |
| CN113880393B (en) * | 2021-12-06 | 2022-05-13 | 恩彻尔(天津)环保科技有限公司 | Sludge drying machine for sewage treatment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007021431A (en) * | 2005-07-20 | 2007-02-01 | Hitachi Plant Technologies Ltd | Sludge treatment method |
| KR100812821B1 (en) * | 2007-09-28 | 2008-03-12 | 박경득 | Dehydrator |
| CN202744428U (en) * | 2012-03-16 | 2013-02-20 | 天津清华德人环境工程有限公司 | River sediment sieving, oxidation reducing and deep dewatering device |
| CN104016565B (en) * | 2014-06-23 | 2015-09-16 | 中国计量学院 | Mud centrifugal filter press double dehydration method |
| CN104944735B (en) * | 2015-06-08 | 2017-12-01 | 柳建国 | Dehydration and drying processing method and its sludge drying extruder in biological sludge factory |
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