CN105948441B - Activated-sludge processing apparatus - Google Patents
Activated-sludge processing apparatus Download PDFInfo
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- CN105948441B CN105948441B CN201610550159.XA CN201610550159A CN105948441B CN 105948441 B CN105948441 B CN 105948441B CN 201610550159 A CN201610550159 A CN 201610550159A CN 105948441 B CN105948441 B CN 105948441B
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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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Abstract
The invention discloses activated-sludge processing apparatus, including cavitation device, the cavitation device includes feed liquor part, cavitation part and discharge portion.Cavitation cavity in cavitation part is equipped with hollow rotation axis and lock chamber.The hollow rotation axis is set to the cental axial position of cavitation part and extends to feed liquor part, it is spherical shape close to one end of discharge portion, one end inside lock chamber is the spherical shape that shape matches therewith, and the two is bonded to each other so that hollow rotation axis is rotatably coupled lock chamber.One end that the hollow rotation axis is located at feed liquor part is equipped with cavitation and induces head, and the inside of the cavitation induction head is equipped with the duct of multiple supplied gas flowing.The feed liquor part is divided into feed liquor tapered portion and feed liquor cylindrical portion, is equipped with feed liquor piston in the feed liquor cylindrical portion.The discharge portion is divided into drain tapered portion and drain cylindrical portion, is equipped with drain piston in the drain cylindrical portion.The present invention may make solid phase impurity to flow through at ozzle or be not susceptible to block at plate hole.
Description
Technical field
The present invention relates to sludge treatment equipments, and in particular to be activated-sludge processing apparatus.
Background technique
In the related technology, mesophilic anaerobic digestion process excess sludge is generallyd use, but mesophilic anaerobic digestion is handled
Exist in the process reaction speed is full, sludge retention time is too long, tank volume is huge, operational administrative is complicated, produce gas in methane contain
Measure low disadvantage, reason be in excess sludge most of organic substances there are in microbial cell, and microbial cell
Cell wall is a stable semirigid structure, plays a part of protecting cell.Cell wall belongs to bio-refractory inert substance,
More difficulty is cracked, this makes sludge digestion process need the longer residence time.Therefore, the structure and cell of sludge are destroyed
Wall makes sludge flocculation structure change, the content outflow of cell, into liquid phase, to become solidity substance difficult to degrade
It is essential for raising reaction speed for degradable dissolved matter.Hydrodynamic cavitation process is empty using waterpower
High temperature caused by change process (local temperature is up to 200-300 DEG C), high pressure, (frequency of impact may be up to 2000- to strong shock wave
3000Hz), the extreme conditions such as high-speed micro-jet realize that the quenched and biological cell of sludge cracks, but crack excess sludge
When, the solid phase impurity contained is flowed through at ozzle or is easily blocked at plate hole, and equipment operating condition is caused to change.
Summary of the invention
In view of the above-mentioned problems, solving Hydrodynamic cavitation the object of the present invention is to provide activated-sludge processing apparatus and cracking residue
When sludge, the solid phase impurity contained is flowed through at ozzle or is easily blocked at plate hole, causes equipment operating condition changed
Technical problem.
In order to solve the above technical problems, the technical solution adopted by the present invention is that activated-sludge processing apparatus, the cavitation device
Including feed liquor part, cavitation part and discharge portion.The cavitation partial interior is cavitation cavity, is equipped in the cavitation chamber body
Hollow rotation axis and lock chamber, the hollow rotation axis are connected to air accumulator by regulating valve, and the compressed air in air accumulator passes through
Regulating valve enters hollow rotation axis, and the hollow rotation axis is set to the cental axial position of cavitation part and extends to feed liquor part,
It is spherical shape close to one end of discharge portion, and one end inside lock chamber is the shape phase with hollow rotation axis one end spherical shape
Matched spherical shape, the two is bonded to each other so that hollow rotation axis is rotatably coupled lock chamber.The hollow rotation axis is located at
One end of feed liquor part is equipped with cavitation and induces head, and the inside of the cavitation induction head is equipped with the duct of multiple supplied gas flowing, institute
The outer surface for stating the nearly feed liquor part of cavitation induction head rest is equipped with blade, and the bottom surface of the cavitation induction head close to cavitation part is set
There is rotation orifice plate, the rotation orifice plate offers multiple spaced semicircle orifices, the axis of aperture and middle idle running along its edge
Moving axis axis is in 15 ° of angles.The feed liquor part is divided into feed liquor tapered portion and feed liquor cylindrical portion, and the feed liquor tapered portion is directly connected to
Cavitation part, and the feed liquor tapered portion is connected with input duct, and feed liquor piston is equipped in the feed liquor cylindrical portion, the feed liquor is living
Plug includes feed liquor piston head and feed liquor connecting rod, and the feed liquor connecting rod connects motor, drives feed liquor piston head along cavitation portion centers
Axis back and forth movement.The discharge portion is equally divided into drain tapered portion and drain cylindrical portion, and the drain tapered portion directly connects
Cavitation part is connect, and the drain tapered portion is connected with Drainage pipe, is equipped with drain piston, the drain in the drain cylindrical portion
Piston includes drain piston head and drain connecting rod, and the drain connecting rod connects motor, drives drain piston head along cavitation part
Mandrel line back and forth movement.The cavitation part includes hollow shell, and the hollow shell includes outer layer, internal layer and lasso, described
The inner surface of outer layer is arranged at intervals with multiple flexible support framves, is filled with acoutic fibre board between adjacent flexible support frame, reduces
Noise and reduction vibration.
Preferably, being additionally provided with the baffle of closing lock chamber in the hollow rotation axis.
Preferably, the cavitation induction head is made of porous ceramics.The hollow rotation axis is located in cavitation induction head
The surface of the part in portion is provided with multiple apertures, and gas is in addition to that can enter feed liquor cylinder by the opening of the end of hollow rotation axis
The duct of head can also be induced to enter feed liquor cylindrical portion by the aperture and cavitation of hollow rotation axis outside portion.
Preferably, the rotation orifice plate at least two is overlapped mutually, one of rotation orifice plate is fixed, another
A rotation orifice plate is rotated by cavitation induction head driving.
Preferably, the feed liquor piston includes feed liquor steel core, feed liquor leather cup, feed liquor pressing plate and feed liquor circlip, it is described into
The side surface of liquid leather cup is directly contacted with the inner surface of feed liquor cylindrical portion.The side surface of the feed liquor leather cup is arranged at intervals with a plurality of
The groove extended along leather cup circumferencial direction, the cross section of the groove are triangle, the smallest angle direction of triangle
Fluid.Multiple diamond-shaped depressions are arranged at intervals between two neighboring groove.The drain piston includes drain steel core, drain skin
Bowl, drain pressing plate and drain circlip, the side surface of the drain leather cup are directly contacted with the inner surface of drain cylindrical portion.The row
The side surface of liquid leather cup is arranged at intervals with multiple excurvation hooks extended along drain leather cup thickness direction, the drain cylindrical portion
Multiple interior crotch parts to match with excurvation hook are arranged in inner surface interval, and the interior crotch part is set to the interior table along drain cylindrical portion
In the slot that face length direction extends.
Beneficial effects of the present invention:
The present invention utilizes Hydrodynamic cavitation principle, i.e., using high temperature, high pressure caused by Hydrodynamic cavitation process, strong shock wave,
The extreme conditions such as high-speed micro-jet realize that the quenched and biological cell of sludge cracks, by the organic matter mass flow in biological cell
Out, into liquid phase, to become solidity substance difficult to degrade as degradable dissolved matter, it is beneficial to aerobic sigestion reaction
It carries out, when cracking excess sludge, the solid phase impurity contained flows through at ozzle or is not susceptible to block at plate hole, and the waterpower of generation is empty
Change effect to further strengthen, to further promote aerobic sigestion reaction.
By the present invention treated excess sludge carries out digestion reaction the 20th day in aerobic sigestion reactor when always consolidate
Body removal rate reaches 52.9%, and digestion reaction is carried out in aerobic sigestion reactor without the excess sludge that the present invention is handled
Total solid removal rate is 35.6% at the 20th day.
By the present invention treated excess sludge carries out digestion reaction the 20th day in aerobic sigestion reactor when chemistry
Oxygen demand removal rate reaches 56.8%, and is digested in aerobic sigestion reactor without the excess sludge that the present invention is handled
Total solid removal rate is 38.3% when reacting the 20th day.
At digestion reaction initial stage, the resistivity of excess sludge not processed by the invention in aerobic sigestion reactor is compared with through this hair
The excess sludge of daylight reason is small, but with the increase of digestion reaction time, after digestion reaction 15, residue processed by the invention
The resistivity of sludge is less than not processed by the invention.
The power for measuring cavitation device consumption of the present invention is 530W/kg, is less than other processing such as ultrasonication, heating power processing
The power of technique consumption.
Detailed description of the invention
Invention is described further using attached drawing, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to the following drawings
Its attached drawing.
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the structural schematic diagram of feed liquor piston of the invention.
Appended drawing reference: 1, feed liquor part, 2, cavitation induction head, 3, blade, 4, rotation orifice plate, 5, hollow rotation axis, 6, row
Liquid part, 7, cavitation cavity, 8, lock chamber, 9, steel core, 10, leather cup, 11, pressing plate, 12, circlip.
Specific embodiment
The invention will be further described with the following Examples.
Embodiment one
The device of the invention, as shown in Figure 1, including cavitation device, the cavitation device includes feed liquor part, cavitation part and row
Liquid part.
The cavitation partial interior is cavitation cavity, and hollow rotation axis and lock chamber are equipped in the cavitation chamber body, described
Hollow rotation axis is connected to air accumulator by regulating valve, and the compressed air in air accumulator enters hollow rotation axis by regulating valve.Institute
Hollow rotation axis is stated set on the cental axial position of cavitation part and extends to feed liquor part, is circle close to one end of discharge portion
Spherical, one end inside lock chamber is the spherical shape to match with the shape of hollow rotation axis one end spherical shape, and the two is mutually pasted
It closes so that hollow rotation axis is rotatably coupled lock chamber.It is additionally provided with the baffle of closing lock chamber in the hollow rotation axis, prevents
Fluid stopping body enters the connection structure of damage hollow rotation axis and lock chamber in lock chamber.The lock chamber is fixed by the bracket in sky
Change in cavity.
One end that the hollow rotation axis is located at feed liquor part is equipped with cavitation and induces head, and the inside of the cavitation induction head is set
There is the duct of multiple supplied gas flowings.In the present embodiment, the cavitation induction head is made of porous ceramics.The hollow rotation
The surface of part of the axle position inside cavitation induction head is provided with multiple apertures, and gas is in addition to that can pass through the end of hollow rotation axis
Opening enter feed liquor cylindrical portion outside can also by the aperture and cavitation of hollow rotation axis induce head duct enter feed liquor circle
Canister portion.The cavitation induces the outer surface of the nearly feed liquor part of head rest to be equipped with blade.The cavitation induces head close to cavitation part
Bottom surface be equipped with rotation orifice plate, under promotion of the fluid to blade, cavitation induce head drive rotation orifice plate rotation, rotation orifice plate by
To shearing and axial motive force tamper can be made to be crushed and separate, be effectively prevented aperture clogs and reduce in cavitation processes and disappear
The energy of consumption, while the gas in the rotation axis of the Middle East induces the surface of head to rotate into feed liquor cylinder by its port and cavitation
Portion generates a large amount of bubble.The rotation orifice plate at least two is overlapped mutually, and one of rotation orifice plate is fixed, separately
One rotation orifice plate is rotated by cavitation induction head driving.
The rotation orifice plate offers multiple spaced semicircle orifices, the axis of aperture and hollow rotation axis along its edge
Axis is in 15 ° of angles, enters cavitation part for being mixed into the fluid after vacuole.
The feed liquor part is divided into feed liquor tapered portion and feed liquor cylindrical portion, and the feed liquor tapered portion is directly connected to cavitation portion
Point, and the feed liquor tapered portion is connected with input duct.Feed liquor piston is equipped in the feed liquor cylindrical portion, the feed liquor piston includes
Feed liquor piston head and feed liquor connecting rod, the feed liquor connecting rod connect motor, and driving feed liquor piston head is past along cavitation portion centers axis
Return movement.
The discharge portion is equally divided into drain tapered portion and drain cylindrical portion, and the drain tapered portion is directly connected to cavitation
Part, and the drain tapered portion is connected with Drainage pipe.Drain piston, the drain piston packet are equipped in the drain cylindrical portion
Drain piston head and drain connecting rod are included, the drain connecting rod connects motor, drives drain piston head along cavitation portion centers axis
Back and forth movement.
When it is implemented, drain piston is static, feed liquor piston is far from cavitation partial movement, and feed liquor tapered portion is in negative pressure at this time
State, fluid are entered by input duct, fluid driven blade, hollow rotation axis, rotation orifice plate rotation.Compression in air accumulator
Air enters feed liquor part by hollow rotation axis under the adjustment of regulating valve, generates diameter 2-5 microns of bubble, induces cavitation
It is nascent.Feed liquor piston is gradually decreased to cavitation componental movement, fluid flow rate, and fluid rapidly enters rotation orifice plate and flows into cavitation cavity
Interior, flow velocity is gradually increased, and high-velocity fluid pressure reduces rapidly when outflow rotates orifice plate, generates cavitation inception.Then, rotating hole
Plate rotates, and closes the communication of cavitation cavity and feed liquor tapered portion, and to cavitation partial movement, cavitation chamber body is interior to press drain piston
Increase by force, vacuole is quickly crumbled and fall, and is generated local high temperature and pressure and high-speed micro-jet, is attacked and destroy the cell wall of biological cell.
Drain piston is flowed out far from cavitation partial movement, the intracorporal fluid of cavitation chamber by Drainage pipe.
The cavitation part includes hollow shell, and the hollow shell includes outer layer, internal layer and lasso, the outer layer it is interior
Surface is arranged at intervals with multiple flexible support framves, and acoutic fibre board is filled between adjacent flexible support frame, reduce noise and
Reduce vibration.
The device can be connected by flange and the pipeline of respective diameters, when fluid is to pass through the device more than 3-10m/s
When, inside the device cavitation occurs for liquid.
Feed liquor piston and drain piston, which directly contact, in operation has certain corrosive sludge, and bears high pressure work
With not only increasing the frictional force between feed liquor piston and feed liquor cylindrical portion, drain piston and drain cylindrical portion, and sludge
It is easy to be squeezed between piston and cylindrical portion, increases the abrasion of piston.
As shown in Fig. 2, the feed liquor piston includes feed liquor steel core, feed liquor leather cup, feed liquor pressing plate and feed liquor circlip, it is described into
The side surface of liquid leather cup is directly contacted with the inner surface of feed liquor cylindrical portion.The side surface of the feed liquor leather cup is arranged at intervals with a plurality of
The groove extended along leather cup circumferencial direction, the cross section of the groove are triangle, the smallest angle direction of triangle
Fluid.Multiple diamond-shaped depressions are arranged at intervals between two neighboring groove
In the present embodiment, the triangle is right angled triangle, other two acute angle of triangle is 30 ° and 60 °, 30 °
Acute angle is towards flow direction.The groove can further improve the wear-resistant seal performance of feed liquor piston.The width of the groove is
Between 4.5mm, the spacing of groove is 5.0mm.The side length of the diamond-shaped depression is 3.0mm, and diamond-shaped depression depth is
4.0mm, diamond-shaped depression center angle are 10 °.
Through detecting, the average life span of the feed liquor piston is 121.7h, its average life span improves compared with standard piston
119.2%.
The drain piston includes drain steel core, drain leather cup, drain pressing plate and drain circlip, the side of the drain leather cup
Surface is directly contacted with the inner surface of drain cylindrical portion.The side surface of the drain leather cup is arranged at intervals with multiple along drain leather cup
The excurvation hook that thickness direction extends, the inner surface interval of the drain cylindrical portion are arranged multiple interior curved with the matching of excurvation hook
Hook, the interior crotch part are set to along the slot that the inner surface length direction of drain cylindrical portion extends.Meeting when drain piston moves
By Drainage pipe, when Drainage pipe is relatively large in diameter, drain piston is easy by slight offset occurs when Drainage pipe
Fluid is caused to penetrate between drain piston and drain cylindrical portion.Excurvation hook is connected with interior crotch part, so that drain piston is tight
Closely connected conjunction drain cylindrical portion, when by Drainage pipe, since drain piston and the relative position of drain cylindrical portion are fixed, drain
Piston will not shift, to guarantee that drain fluid does not penetrate between drain piston and drain cylindrical portion.
Following index is measured before and after Treatment of Sludge:
1, total solid, volatile total solids
The crucible of clean calcination to constant weight (about 6min under the conditions of 600 DEG C) is weighed, 10ml sludge is measured and is put into crucible
In, crucible is put into after being toasted 24 hours in 105 DEG C of baking oven and is taken out, is placed in drier and be cooled to room temperature, then weigh G2.
Crucible is put into 600 DEG C of Muffle furnaces calcination 2 hours, the G3 that weighs is put into after being cooled to room temperature in drier after taking-up.
Sludge total solid=(G2-G1)/sludge volume
Sludge volatile total solids=(G3-G2)/sludge volume
2, COD COD
A certain amount of potassium bichromate and catalyst sulfuric acid silver is added in sampling, when being heated to reflux one section in strong acid medium
Between, part potassium bichromate is oxidized substance reduction in water sample, remaining potassium bichromate is titrated with iron ammonium sulfate, according to trumpet
The amount of potassium bichromate calculates the value of COD.
3, sludge settling property measures
Static sedimentation is carried out to the sludge by 15 days digestion reactions, the specific steps are will after digestion in 15 days mud sample
It moves in the graduated cylinder of high 0.5m, observes and records interfacial level and change with time
4, sludge filtration performance measurement
The resistivity of Buchner funnel method measurement sludge.
5, cavitation device energy consumption calculation
Handle power consumed by every kilogram of sludge are as follows:
Wherein, Δ h is the pressure difference at cavitation device both ends, ThFor the cavitation time.
By the present invention treated excess sludge carries out digestion reaction the 20th day in aerobic sigestion reactor when always consolidate
Body removal rate reaches 52.9%, and digestion reaction is carried out in aerobic sigestion reactor without the excess sludge that the present invention is handled
Total solid removal rate is 35.6% at the 20th day.
By the present invention treated excess sludge carries out digestion reaction the 20th day in aerobic sigestion reactor when chemistry
Oxygen demand removal rate reaches 56.8%, and is digested in aerobic sigestion reactor without the excess sludge that the present invention is handled
Total solid removal rate is 38.3% when reacting the 20th day.
At digestion reaction initial stage, the resistivity of excess sludge not processed by the invention in aerobic sigestion reactor is compared with through this hair
The excess sludge of daylight reason is small, but with the increase of digestion reaction time, after digestion reaction 15, residue processed by the invention
The resistivity of sludge is less than not processed by the invention.
The power for measuring cavitation device consumption of the present invention is 530W/kg.
Embodiment two
The device of the invention, as shown in Figure 1, including cavitation device, the cavitation device includes feed liquor part, cavitation part and row
Liquid part.
The cavitation partial interior is cavitation cavity, and hollow rotation axis and lock chamber are equipped in the cavitation chamber body, described
Hollow rotation axis is connected to air accumulator by regulating valve, and the compressed air in air accumulator enters hollow rotation axis by regulating valve.Institute
Hollow rotation axis is stated set on the cental axial position of cavitation part and extends to feed liquor part, is circle close to one end of discharge portion
Spherical, one end inside lock chamber is the spherical shape to match with the shape of hollow rotation axis one end spherical shape, and the two is mutually pasted
It closes so that hollow rotation axis is rotatably coupled lock chamber.It is additionally provided with the baffle of closing lock chamber in the hollow rotation axis, prevents
Fluid stopping body enters the connection structure of damage hollow rotation axis and lock chamber in lock chamber.The lock chamber is fixed by the bracket in sky
Change in cavity.
One end that the hollow rotation axis is located at feed liquor part is equipped with cavitation and induces head, and the inside of the cavitation induction head is set
There is the duct of multiple supplied gas flowings.In the present embodiment, the cavitation induction head is made of porous ceramics.The hollow rotation
The surface of part of the axle position inside cavitation induction head is provided with multiple apertures, and gas is in addition to that can pass through the end of hollow rotation axis
Opening enter feed liquor cylindrical portion outside can also by the aperture and cavitation of hollow rotation axis induce head duct enter feed liquor circle
Canister portion.The cavitation induces the outer surface of the nearly feed liquor part of head rest to be equipped with blade.The cavitation induces head close to cavitation part
Bottom surface be equipped with rotation orifice plate, under promotion of the fluid to blade, cavitation induce head drive rotation orifice plate rotation, rotation orifice plate by
To shearing and axial motive force tamper can be made to be crushed and separate, be effectively prevented aperture clogs and reduce in cavitation processes and disappear
The energy of consumption, while the gas in the rotation axis of the Middle East induces the surface of head to rotate into feed liquor cylinder by its port and cavitation
Portion generates a large amount of bubble.The rotation orifice plate at least two is overlapped mutually, and one of rotation orifice plate is fixed, separately
One rotation orifice plate is rotated by cavitation induction head driving.
The rotation orifice plate offers multiple spaced semicircle orifices, the axis of aperture and hollow rotation axis along its edge
Axis is in 15 ° of angles, enters cavitation part for being mixed into the fluid after vacuole.
The feed liquor part is divided into feed liquor tapered portion and feed liquor cylindrical portion, and the feed liquor tapered portion is directly connected to cavitation portion
Point, and the feed liquor tapered portion is connected with input duct.Feed liquor piston is equipped in the feed liquor cylindrical portion, the feed liquor piston includes
Feed liquor piston head and feed liquor connecting rod, the feed liquor connecting rod connect motor, and driving feed liquor piston head is past along cavitation portion centers axis
Return movement.
The discharge portion is equally divided into drain tapered portion and drain cylindrical portion, and the drain tapered portion is directly connected to cavitation
Part, and the drain tapered portion is connected with Drainage pipe.Drain piston, the drain piston packet are equipped in the drain cylindrical portion
Drain piston head and drain connecting rod are included, the drain connecting rod connects motor, drives drain piston head along cavitation portion centers axis
Back and forth movement.
When it is implemented, drain piston is static, feed liquor piston is far from cavitation partial movement, and feed liquor tapered portion is in negative pressure at this time
State, fluid are entered by input duct, fluid driven blade, hollow rotation axis, rotation orifice plate rotation.Compression in air accumulator
Air enters feed liquor part by hollow rotation axis under the adjustment of regulating valve, generates diameter 2-5 microns of bubble, induces cavitation
It is nascent.Feed liquor piston is gradually decreased to cavitation componental movement, fluid flow rate, and fluid rapidly enters rotation orifice plate and flows into cavitation cavity
Interior, flow velocity is gradually increased, and high-velocity fluid pressure reduces rapidly when outflow rotates orifice plate, generates cavitation inception.Then, rotating hole
Plate rotates, and closes the communication of cavitation cavity and feed liquor tapered portion, and to cavitation partial movement, cavitation chamber body is interior to press drain piston
Increase by force, vacuole is quickly crumbled and fall, and is generated local high temperature and pressure and high-speed micro-jet, is attacked and destroy the cell wall of biological cell.
Drain piston is flowed out far from cavitation partial movement, the intracorporal fluid of cavitation chamber by Drainage pipe.
The cavitation part includes hollow shell, and the hollow shell includes outer layer, internal layer and lasso, the outer layer it is interior
Surface is arranged at intervals with multiple flexible support framves, and acoutic fibre board is filled between adjacent flexible support frame, reduce noise and
Reduce vibration.
The device can be connected by flange and the pipeline of respective diameters, when fluid is to pass through the device more than 3-10m/s
When, inside the device cavitation occurs for liquid.
Feed liquor piston and drain piston, which directly contact, in operation has certain corrosive sludge, and bears high pressure work
With not only increasing the frictional force between feed liquor piston and feed liquor cylindrical portion, drain piston and drain cylindrical portion, and sludge
It is easy to be squeezed between piston and cylindrical portion, increases the abrasion of piston.
As shown in Fig. 2, the feed liquor piston includes feed liquor steel core, feed liquor leather cup, feed liquor pressing plate and feed liquor circlip, it is described into
The side surface of liquid leather cup is directly contacted with the inner surface of feed liquor cylindrical portion.The side surface of the feed liquor leather cup is arranged at intervals with a plurality of
The groove extended along leather cup circumferencial direction, the cross section of the groove are triangle, the smallest angle direction of triangle
Fluid.Multiple diamond-shaped depressions are arranged at intervals between two neighboring groove
In the present embodiment, the triangle is right angled triangle, other two acute angle of triangle is 30 ° and 60 °, 30 °
Acute angle is towards flow direction.The groove can further improve the wear-resistant seal performance of feed liquor piston.The width of the groove is
Between 4.5mm, the spacing of groove is 5.0mm.The side length of the diamond-shaped depression is 4.5mm, and diamond-shaped depression depth is
4.0mm, diamond-shaped depression center angle are 15 °.
Through detecting, the average life span of the feed liquor piston is 98.6h, its average life span improves compared with standard piston
81.6%.
The drain piston includes drain steel core, drain leather cup, drain pressing plate and drain circlip, the side of the drain leather cup
Surface is directly contacted with the inner surface of drain cylindrical portion.The side surface of the drain leather cup is arranged at intervals with multiple along drain leather cup
The excurvation hook that thickness direction extends, the inner surface interval of the drain cylindrical portion are arranged multiple interior curved with the matching of excurvation hook
Hook, the interior crotch part are set to along the slot that the inner surface length direction of drain cylindrical portion extends.Meeting when drain piston moves
By Drainage pipe, when Drainage pipe is relatively large in diameter, drain piston is easy by slight offset occurs when Drainage pipe
Fluid is caused to penetrate between drain piston and drain cylindrical portion.Excurvation hook is connected with interior crotch part, so that drain piston is tight
Closely connected conjunction drain cylindrical portion, when by Drainage pipe, since drain piston and the relative position of drain cylindrical portion are fixed, drain
Piston will not shift, to guarantee that drain fluid does not penetrate between drain piston and drain cylindrical portion.
Following index is measured before and after Treatment of Sludge:
1, total solid, volatile total solids
The crucible of clean calcination to constant weight (about 6min under the conditions of 600 DEG C) is weighed, 10ml sludge is measured and is put into crucible
In, crucible is put into after being toasted 24 hours in 105 DEG C of baking oven and is taken out, is placed in drier and be cooled to room temperature, then weigh G2.
Crucible is put into 600 DEG C of Muffle furnaces calcination 2 hours, the G3 that weighs is put into after being cooled to room temperature in drier after taking-up.
Sludge total solid=(G2-G1)/sludge volume
Sludge volatile total solids=(G3-G2)/sludge volume
2, COD COD
A certain amount of potassium bichromate and catalyst sulfuric acid silver is added in sampling, when being heated to reflux one section in strong acid medium
Between, part potassium bichromate is oxidized substance reduction in water sample, remaining potassium bichromate is titrated with iron ammonium sulfate, according to trumpet
The amount of potassium bichromate calculates the value of COD.
3, sludge settling property measures
Static sedimentation is carried out to the sludge by 15 days digestion reactions, the specific steps are will after digestion in 15 days mud sample
It moves in the graduated cylinder of high 0.5m, observes and records interfacial level and change with time
4, sludge filtration performance measurement
The resistivity of Buchner funnel method measurement sludge.
5, cavitation device energy consumption calculation
Handle power consumed by every kilogram of sludge are as follows:
Wherein, Δ h is the pressure difference at cavitation device both ends, ThFor the cavitation time.
By the present invention treated excess sludge carries out digestion reaction the 20th day in aerobic sigestion reactor when always consolidate
Body removal rate reaches 50.3%, and digestion reaction is carried out in aerobic sigestion reactor without the excess sludge that the present invention is handled
Total solid removal rate is 39.6% at the 20th day.
By the present invention treated excess sludge carries out digestion reaction the 20th day in aerobic sigestion reactor when chemistry
Oxygen demand removal rate reaches 59.3%, and is digested in aerobic sigestion reactor without the excess sludge that the present invention is handled
Total solid removal rate is 40.6% when reacting the 20th day.
At digestion reaction initial stage, the resistivity of excess sludge not processed by the invention in aerobic sigestion reactor is compared with through this hair
The excess sludge of daylight reason is small, but with the increase of digestion reaction time, and after digestion reaction 15 days, processed by the invention is surplus
The resistivity of remaining sludge is less than not processed by the invention.
The power for measuring cavitation device consumption of the present invention is 529W/kg.
Embodiment three
The device of the invention, as shown in Figure 1, including cavitation device, the cavitation device includes feed liquor part, cavitation part and row
Liquid part.
The cavitation partial interior is cavitation cavity, and hollow rotation axis and lock chamber are equipped in the cavitation chamber body, described
Hollow rotation axis is connected to air accumulator by regulating valve, and the compressed air in air accumulator enters hollow rotation axis by regulating valve.Institute
Hollow rotation axis is stated set on the cental axial position of cavitation part and extends to feed liquor part, is circle close to one end of discharge portion
Spherical, one end inside lock chamber is the spherical shape to match with the shape of hollow rotation axis one end spherical shape, and the two is mutually pasted
It closes so that hollow rotation axis is rotatably coupled lock chamber.It is additionally provided with the baffle of closing lock chamber in the hollow rotation axis, prevents
Fluid stopping body enters the connection structure of damage hollow rotation axis and lock chamber in lock chamber.The lock chamber is fixed by the bracket in sky
Change in cavity.
One end that the hollow rotation axis is located at feed liquor part is equipped with cavitation and induces head, and the inside of the cavitation induction head is set
There is the duct of multiple supplied gas flowings.In the present embodiment, the cavitation induction head is made of porous ceramics.The hollow rotation
The surface of part of the axle position inside cavitation induction head is provided with multiple apertures, and gas is in addition to that can pass through the end of hollow rotation axis
Opening enter feed liquor cylindrical portion outside can also by the aperture and cavitation of hollow rotation axis induce head duct enter feed liquor circle
Canister portion.The cavitation induces the outer surface of the nearly feed liquor part of head rest to be equipped with blade.The cavitation induces head close to cavitation part
Bottom surface be equipped with rotation orifice plate, under promotion of the fluid to blade, cavitation induce head drive rotation orifice plate rotation, rotation orifice plate by
To shearing and axial motive force tamper can be made to be crushed and separate, be effectively prevented aperture clogs and reduce in cavitation processes and disappear
The energy of consumption, while the gas in the rotation axis of the Middle East induces the surface of head to rotate into feed liquor cylinder by its port and cavitation
Portion generates a large amount of bubble.The rotation orifice plate at least two is overlapped mutually, and one of rotation orifice plate is fixed, separately
One rotation orifice plate is rotated by cavitation induction head driving.
The rotation orifice plate offers multiple spaced semicircle orifices, the axis of aperture and hollow rotation axis along its edge
Axis is in 15 ° of angles, enters cavitation part for being mixed into the fluid after vacuole.
The feed liquor part is divided into feed liquor tapered portion and feed liquor cylindrical portion, and the feed liquor tapered portion is directly connected to cavitation portion
Point, and the feed liquor tapered portion is connected with input duct.Feed liquor piston is equipped in the feed liquor cylindrical portion, the feed liquor piston includes
Feed liquor piston head and feed liquor connecting rod, the feed liquor connecting rod connect motor, and driving feed liquor piston head is past along cavitation portion centers axis
Return movement.
The discharge portion is equally divided into drain tapered portion and drain cylindrical portion, and the drain tapered portion is directly connected to cavitation
Part, and the drain tapered portion is connected with Drainage pipe.Drain piston, the drain piston packet are equipped in the drain cylindrical portion
Drain piston head and drain connecting rod are included, the drain connecting rod connects motor, drives drain piston head along cavitation portion centers axis
Back and forth movement.
When it is implemented, drain piston is static, feed liquor piston is far from cavitation partial movement, and feed liquor tapered portion is in negative pressure at this time
State, fluid are entered by input duct, fluid driven blade, hollow rotation axis, rotation orifice plate rotation.Compression in air accumulator
Air enters feed liquor part by hollow rotation axis under the adjustment of regulating valve, generates diameter 2-5 microns of bubble, induces cavitation
It is nascent.Feed liquor piston is gradually decreased to cavitation componental movement, fluid flow rate, and fluid rapidly enters rotation orifice plate and flows into cavitation cavity
Interior, flow velocity is gradually increased, and high-velocity fluid pressure reduces rapidly when outflow rotates orifice plate, generates cavitation inception.Then, rotating hole
Plate rotates, and closes the communication of cavitation cavity and feed liquor tapered portion, and to cavitation partial movement, cavitation chamber body is interior to press drain piston
Increase by force, vacuole is quickly crumbled and fall, and is generated local high temperature and pressure and high-speed micro-jet, is attacked and destroy the cell wall of biological cell.
Drain piston is flowed out far from cavitation partial movement, the intracorporal fluid of cavitation chamber by Drainage pipe.
The cavitation part includes hollow shell, and the hollow shell includes outer layer, internal layer and lasso, the outer layer it is interior
Surface is arranged at intervals with multiple flexible support framves, and acoutic fibre board is filled between adjacent flexible support frame, reduce noise and
Reduce vibration.
The device can be connected by flange and the pipeline of respective diameters, when fluid is to pass through the device more than 3-10m/s
When, inside the device cavitation occurs for liquid.
Feed liquor piston and drain piston, which directly contact, in operation has certain corrosive sludge, and bears high pressure work
With not only increasing the frictional force between feed liquor piston and feed liquor cylindrical portion, drain piston and drain cylindrical portion, and sludge
It is easy to be squeezed between piston and cylindrical portion, increases the abrasion of piston.
As shown in Fig. 2, the feed liquor piston includes feed liquor steel core, feed liquor leather cup, feed liquor pressing plate and feed liquor circlip, it is described into
The side surface of liquid leather cup is directly contacted with the inner surface of feed liquor cylindrical portion.The side surface of the feed liquor leather cup is arranged at intervals with a plurality of
The groove extended along leather cup circumferencial direction, the cross section of the groove are triangle, the smallest angle direction of triangle
Fluid.Multiple diamond-shaped depressions are arranged at intervals between two neighboring groove
In the present embodiment, the triangle is right angled triangle, other two acute angle of triangle is 30 ° and 60 °, 30 °
Acute angle is towards flow direction.The groove can further improve the wear-resistant seal performance of feed liquor piston.The width of the groove is
Between 4.5mm, the spacing of groove is 8.0mm.The side length of the diamond-shaped depression is 3.0mm, and diamond-shaped depression depth is
4.0mm, diamond-shaped depression center angle are 10 °.
Through detecting, the average life span of the feed liquor piston is 83.3h, its average life span improves compared with standard piston
78.2%.
The drain piston includes drain steel core, drain leather cup, drain pressing plate and drain circlip, the side of the drain leather cup
Surface is directly contacted with the inner surface of drain cylindrical portion.The side surface of the drain leather cup is arranged at intervals with multiple along drain leather cup
The excurvation hook that thickness direction extends, the inner surface interval of the drain cylindrical portion are arranged multiple interior curved with the matching of excurvation hook
Hook, the interior crotch part are set to along the slot that the inner surface length direction of drain cylindrical portion extends.Meeting when drain piston moves
By Drainage pipe, when Drainage pipe is relatively large in diameter, drain piston is easy by slight offset occurs when Drainage pipe
Fluid is caused to penetrate between drain piston and drain cylindrical portion.Excurvation hook is connected with interior crotch part, so that drain piston is tight
Closely connected conjunction drain cylindrical portion, when by Drainage pipe, since drain piston and the relative position of drain cylindrical portion are fixed, drain
Piston will not shift, to guarantee that drain fluid does not penetrate between drain piston and drain cylindrical portion.
Following index is measured before and after Treatment of Sludge:
1, total solid, volatile total solids
The crucible of clean calcination to constant weight (about 6min under the conditions of 600 DEG C) is weighed, 10ml sludge is measured and is put into crucible
In, crucible is put into after being toasted 24 hours in 105 DEG C of baking oven and is taken out, is placed in drier and be cooled to room temperature, then weigh G2.
Crucible is put into 600 DEG C of Muffle furnaces calcination 2 hours, the G3 that weighs is put into after being cooled to room temperature in drier after taking-up.
Sludge total solid=(G2-G1)/sludge volume
Sludge volatile total solids=(G3-G2)/sludge volume
2, COD COD
A certain amount of potassium bichromate and catalyst sulfuric acid silver is added in sampling, when being heated to reflux one section in strong acid medium
Between, part potassium bichromate is oxidized substance reduction in water sample, remaining potassium bichromate is titrated with iron ammonium sulfate, according to trumpet
The amount of potassium bichromate calculates the value of COD.
3, sludge settling property measures
Static sedimentation is carried out to the sludge by 15 days digestion reactions, the specific steps are will after digestion in 15 days mud sample
It moves in the graduated cylinder of high 0.5m, observes and records interfacial level and change with time
4, sludge filtration performance measurement
The resistivity of Buchner funnel method measurement sludge.
5, cavitation device energy consumption calculation
Handle power consumed by every kilogram of sludge are as follows:
Wherein, Δ h is the pressure difference at cavitation device both ends, ThFor the cavitation time.
By the present invention treated excess sludge carries out digestion reaction the 20th day in aerobic sigestion reactor when always consolidate
Body removal rate reaches 53.6%, and digestion reaction is carried out in aerobic sigestion reactor without the excess sludge that the present invention is handled
Total solid removal rate is 40.3% at the 20th day.
By the present invention treated excess sludge carries out digestion reaction the 20th day in aerobic sigestion reactor when chemistry
Oxygen demand removal rate reaches 60.3%, and is digested in aerobic sigestion reactor without the excess sludge that the present invention is handled
Total solid removal rate is 37.6% when reacting the 20th day.
At digestion reaction initial stage, the resistivity of excess sludge not processed by the invention in aerobic sigestion reactor is compared with through this hair
The excess sludge of daylight reason is small, but with the increase of digestion reaction time, and after digestion reaction 15 days, processed by the invention is surplus
The resistivity of remaining sludge is less than not processed by the invention.
The power for measuring cavitation device consumption of the present invention is 529W/kg.
Example IV
The device of the invention, as shown in Figure 1, including cavitation device, the cavitation device includes feed liquor part, cavitation part and row
Liquid part.
The cavitation partial interior is cavitation cavity, and hollow rotation axis and lock chamber are equipped in the cavitation chamber body, described
Hollow rotation axis is connected to air accumulator by regulating valve, and the compressed air in air accumulator enters hollow rotation axis by regulating valve.Institute
Hollow rotation axis is stated set on the cental axial position of cavitation part and extends to feed liquor part, is circle close to one end of discharge portion
Spherical, one end inside lock chamber is the spherical shape to match with the shape of hollow rotation axis one end spherical shape, and the two is mutually pasted
It closes so that hollow rotation axis is rotatably coupled lock chamber.It is additionally provided with the baffle of closing lock chamber in the hollow rotation axis, prevents
Fluid stopping body enters the connection structure of damage hollow rotation axis and lock chamber in lock chamber.The lock chamber is fixed by the bracket in sky
Change in cavity.
One end that the hollow rotation axis is located at feed liquor part is equipped with cavitation and induces head, and the inside of the cavitation induction head is set
There is the duct of multiple supplied gas flowings.In the present embodiment, the cavitation induction head is made of porous ceramics.The hollow rotation
The surface of part of the axle position inside cavitation induction head is provided with multiple apertures, and gas is in addition to that can pass through the end of hollow rotation axis
Opening enter feed liquor cylindrical portion outside can also by the aperture and cavitation of hollow rotation axis induce head duct enter feed liquor circle
Canister portion.The cavitation induces the outer surface of the nearly feed liquor part of head rest to be equipped with blade.The cavitation induces head close to cavitation part
Bottom surface be equipped with rotation orifice plate, under promotion of the fluid to blade, cavitation induce head drive rotation orifice plate rotation, rotation orifice plate by
To shearing and axial motive force tamper can be made to be crushed and separate, be effectively prevented aperture clogs and reduce in cavitation processes and disappear
The energy of consumption, while the gas in the rotation axis of the Middle East induces the surface of head to rotate into feed liquor cylinder by its port and cavitation
Portion generates a large amount of bubble.The rotation orifice plate at least two is overlapped mutually, and one of rotation orifice plate is fixed, separately
One rotation orifice plate is rotated by cavitation induction head driving.
The rotation orifice plate offers multiple spaced semicircle orifices, the axis of aperture and hollow rotation axis along its edge
Axis is in 15 ° of angles, enters cavitation part for being mixed into the fluid after vacuole.
The feed liquor part is divided into feed liquor tapered portion and feed liquor cylindrical portion, and the feed liquor tapered portion is directly connected to cavitation portion
Point, and the feed liquor tapered portion is connected with input duct.Feed liquor piston is equipped in the feed liquor cylindrical portion, the feed liquor piston includes
Feed liquor piston head and feed liquor connecting rod, the feed liquor connecting rod connect motor, and driving feed liquor piston head is past along cavitation portion centers axis
Return movement.
The discharge portion is equally divided into drain tapered portion and drain cylindrical portion, and the drain tapered portion is directly connected to cavitation
Part, and the drain tapered portion is connected with Drainage pipe.Drain piston, the drain piston packet are equipped in the drain cylindrical portion
Drain piston head and drain connecting rod are included, the drain connecting rod connects motor, drives drain piston head along cavitation portion centers axis
Back and forth movement.
When it is implemented, drain piston is static, feed liquor piston is far from cavitation partial movement, and feed liquor tapered portion is in negative pressure at this time
State, fluid are entered by input duct, fluid driven blade, hollow rotation axis, rotation orifice plate rotation.Compression in air accumulator
Air enters feed liquor part by hollow rotation axis under the adjustment of regulating valve, generates diameter 2-5 microns of bubble, induces cavitation
It is nascent.Feed liquor piston is gradually decreased to cavitation componental movement, fluid flow rate, and fluid rapidly enters rotation orifice plate and flows into cavitation cavity
Interior, flow velocity is gradually increased, and high-velocity fluid pressure reduces rapidly when outflow rotates orifice plate, generates cavitation inception.Then, rotating hole
Plate rotates, and closes the communication of cavitation cavity and feed liquor tapered portion, and to cavitation partial movement, cavitation chamber body is interior to press drain piston
Increase by force, vacuole is quickly crumbled and fall, and is generated local high temperature and pressure and high-speed micro-jet, is attacked and destroy the cell wall of biological cell.
Drain piston is flowed out far from cavitation partial movement, the intracorporal fluid of cavitation chamber by Drainage pipe.
The cavitation part includes hollow shell, and the hollow shell includes outer layer, internal layer and lasso, the outer layer it is interior
Surface is arranged at intervals with multiple flexible support framves, and acoutic fibre board is filled between adjacent flexible support frame, reduce noise and
Reduce vibration.
The device can be connected by flange and the pipeline of respective diameters, when fluid is to pass through the device more than 3-10m/s
When, inside the device cavitation occurs for liquid.
Feed liquor piston and drain piston, which directly contact, in operation has certain corrosive sludge, and bears high pressure work
With not only increasing the frictional force between feed liquor piston and feed liquor cylindrical portion, drain piston and drain cylindrical portion, and sludge
It is easy to be squeezed between piston and cylindrical portion, increases the abrasion of piston.
As shown in Fig. 2, the feed liquor piston includes feed liquor steel core, feed liquor leather cup, feed liquor pressing plate and feed liquor circlip, it is described into
The side surface of liquid leather cup is directly contacted with the inner surface of feed liquor cylindrical portion.The side surface of the feed liquor leather cup is arranged at intervals with a plurality of
The groove extended along leather cup circumferencial direction, the cross section of the groove are triangle, the smallest angle direction of triangle
Fluid.Multiple diamond-shaped depressions are arranged at intervals between two neighboring groove
In the present embodiment, the triangle is right angled triangle, other two acute angle of triangle is 30 ° and 60 °, 30 °
Acute angle is towards flow direction.The groove can further improve the wear-resistant seal performance of feed liquor piston.The width of the groove is
Between 4.5mm, the spacing of groove is 8.0mm.The side length of the diamond-shaped depression is 4.5mm, and diamond-shaped depression depth is
4.0mm, diamond-shaped depression center angle are 15 °.
Through detecting, the average life span of the feed liquor piston is 75.8h, its average life span improves compared with standard piston
65.7%.
The drain piston includes drain steel core, drain leather cup, drain pressing plate and drain circlip, the side of the drain leather cup
Surface is directly contacted with the inner surface of drain cylindrical portion.The side surface of the drain leather cup is arranged at intervals with multiple along drain leather cup
The excurvation hook that thickness direction extends, the inner surface interval of the drain cylindrical portion are arranged multiple interior curved with the matching of excurvation hook
Hook, the interior crotch part are set to along the slot that the inner surface length direction of drain cylindrical portion extends.Meeting when drain piston moves
By Drainage pipe, when Drainage pipe is relatively large in diameter, drain piston is easy by slight offset occurs when Drainage pipe
Fluid is caused to penetrate between drain piston and drain cylindrical portion.Excurvation hook is connected with interior crotch part, so that drain piston is tight
Closely connected conjunction drain cylindrical portion, when by Drainage pipe, since drain piston and the relative position of drain cylindrical portion are fixed, drain
Piston will not shift, to guarantee that drain fluid does not penetrate between drain piston and drain cylindrical portion.
Following index is measured before and after Treatment of Sludge:
1, total solid, volatile total solids
The crucible of clean calcination to constant weight (about 6min under the conditions of 600 DEG C) is weighed, 10ml sludge is measured and is put into crucible
In, crucible is put into after being toasted 24 hours in 105 DEG C of baking oven and is taken out, is placed in drier and be cooled to room temperature, then weigh G2.
Crucible is put into 600 DEG C of Muffle furnaces calcination 2 hours, the G3 that weighs is put into after being cooled to room temperature in drier after taking-up.
Sludge total solid=(G2-G1)/sludge volume
Sludge volatile total solids=(G3-G2)/sludge volume
2, COD COD
A certain amount of potassium bichromate and catalyst sulfuric acid silver is added in sampling, when being heated to reflux one section in strong acid medium
Between, part potassium bichromate is oxidized substance reduction in water sample, remaining potassium bichromate is titrated with iron ammonium sulfate, according to trumpet
The amount of potassium bichromate calculates the value of COD.
3, sludge settling property measures
Static sedimentation is carried out to the sludge by 15 days digestion reactions, the specific steps are will after digestion in 15 days mud sample
It moves in the graduated cylinder of high 0.5m, observes and records interfacial level and change with time
4, sludge filtration performance measurement
The resistivity of Buchner funnel method measurement sludge.
5, cavitation device energy consumption calculation
Handle power consumed by every kilogram of sludge are as follows:
Wherein, Δ h is the pressure difference at cavitation device both ends, ThFor the cavitation time.
By the present invention treated excess sludge carries out digestion reaction the 20th day in aerobic sigestion reactor when always consolidate
Body removal rate reaches 58.3%, and digestion reaction is carried out in aerobic sigestion reactor without the excess sludge that the present invention is handled
Total solid removal rate is 32.9% at the 20th day.
By the present invention treated excess sludge carries out digestion reaction the 20th day in aerobic sigestion reactor when chemistry
Oxygen demand removal rate reaches 51.9%, and is digested in aerobic sigestion reactor without the excess sludge that the present invention is handled
Total solid removal rate is 39.5% when reacting the 20th day.
At digestion reaction initial stage, the resistivity of excess sludge not processed by the invention in aerobic sigestion reactor is compared with through this hair
The excess sludge of daylight reason is small, but with the increase of digestion reaction time, and after digestion reaction 15 days, processed by the invention is surplus
The resistivity of remaining sludge is less than not processed by the invention.
The power for measuring cavitation device consumption of the present invention is 534W/kg.
Embodiment five
The device of the invention, as shown in Figure 1, including cavitation device, the cavitation device includes feed liquor part, cavitation part and row
Liquid part.
The cavitation partial interior is cavitation cavity, and hollow rotation axis and lock chamber are equipped in the cavitation chamber body, described
Hollow rotation axis is connected to air accumulator by regulating valve, and the compressed air in air accumulator enters hollow rotation axis by regulating valve.Institute
Hollow rotation axis is stated set on the cental axial position of cavitation part and extends to feed liquor part, is circle close to one end of discharge portion
Spherical, one end inside lock chamber is the spherical shape to match with the shape of hollow rotation axis one end spherical shape, and the two is mutually pasted
It closes so that hollow rotation axis is rotatably coupled lock chamber.It is additionally provided with the baffle of closing lock chamber in the hollow rotation axis, prevents
Fluid stopping body enters the connection structure of damage hollow rotation axis and lock chamber in lock chamber.The lock chamber is fixed by the bracket in sky
Change in cavity.
One end that the hollow rotation axis is located at feed liquor part is equipped with cavitation and induces head, and the inside of the cavitation induction head is set
There is the duct of multiple supplied gas flowings.In the present embodiment, the cavitation induction head is made of porous ceramics.The hollow rotation
The surface of part of the axle position inside cavitation induction head is provided with multiple apertures, and gas is in addition to that can pass through the end of hollow rotation axis
Opening enter feed liquor cylindrical portion outside can also by the aperture and cavitation of hollow rotation axis induce head duct enter feed liquor circle
Canister portion.The cavitation induces the outer surface of the nearly feed liquor part of head rest to be equipped with blade.The cavitation induces head close to cavitation part
Bottom surface be equipped with rotation orifice plate, under promotion of the fluid to blade, cavitation induce head drive rotation orifice plate rotation, rotation orifice plate by
To shearing and axial motive force tamper can be made to be crushed and separate, be effectively prevented aperture clogs and reduce in cavitation processes and disappear
The energy of consumption, while the gas in the rotation axis of the Middle East induces the surface of head to rotate into feed liquor cylinder by its port and cavitation
Portion generates a large amount of bubble.The rotation orifice plate at least two is overlapped mutually, and one of rotation orifice plate is fixed, separately
One rotation orifice plate is rotated by cavitation induction head driving.
The rotation orifice plate offers multiple spaced semicircle orifices, the axis of aperture and hollow rotation axis along its edge
Axis is in 15 ° of angles, enters cavitation part for being mixed into the fluid after vacuole.
The feed liquor part is divided into feed liquor tapered portion and feed liquor cylindrical portion, and the feed liquor tapered portion is directly connected to cavitation portion
Point, and the feed liquor tapered portion is connected with input duct.Feed liquor piston is equipped in the feed liquor cylindrical portion, the feed liquor piston includes
Feed liquor piston head and feed liquor connecting rod, the feed liquor connecting rod connect motor, and driving feed liquor piston head is past along cavitation portion centers axis
Return movement.
The discharge portion is equally divided into drain tapered portion and drain cylindrical portion, and the drain tapered portion is directly connected to cavitation
Part, and the drain tapered portion is connected with Drainage pipe.Drain piston, the drain piston packet are equipped in the drain cylindrical portion
Drain piston head and drain connecting rod are included, the drain connecting rod connects motor, drives drain piston head along cavitation portion centers axis
Back and forth movement.
When it is implemented, drain piston is static, feed liquor piston is far from cavitation partial movement, and feed liquor tapered portion is in negative pressure at this time
State, fluid are entered by input duct, fluid driven blade, hollow rotation axis, rotation orifice plate rotation.Compression in air accumulator
Air enters feed liquor part by hollow rotation axis under the adjustment of regulating valve, generates diameter 2-5 microns of bubble, induces cavitation
It is nascent.Feed liquor piston is gradually decreased to cavitation componental movement, fluid flow rate, and fluid rapidly enters rotation orifice plate and flows into cavitation cavity
Interior, flow velocity is gradually increased, and high-velocity fluid pressure reduces rapidly when outflow rotates orifice plate, generates cavitation inception.Then, rotating hole
Plate rotates, and closes the communication of cavitation cavity and feed liquor tapered portion, and to cavitation partial movement, cavitation chamber body is interior to press drain piston
Increase by force, vacuole is quickly crumbled and fall, and is generated local high temperature and pressure and high-speed micro-jet, is attacked and destroy the cell wall of biological cell.
Drain piston is flowed out far from cavitation partial movement, the intracorporal fluid of cavitation chamber by Drainage pipe.
The cavitation part includes hollow shell, and the hollow shell includes outer layer, internal layer and lasso, the outer layer it is interior
Surface is arranged at intervals with multiple flexible support framves, and acoutic fibre board is filled between adjacent flexible support frame, reduce noise and
Reduce vibration.
The device can be connected by flange and the pipeline of respective diameters, when fluid is to pass through the device more than 3-10m/s
When, inside the device cavitation occurs for liquid.
Feed liquor piston and drain piston, which directly contact, in operation has certain corrosive sludge, and bears high pressure work
With not only increasing the frictional force between feed liquor piston and feed liquor cylindrical portion, drain piston and drain cylindrical portion, and sludge
It is easy to be squeezed between piston and cylindrical portion, increases the abrasion of piston.
As shown in Fig. 2, the feed liquor piston includes feed liquor steel core, feed liquor leather cup, feed liquor pressing plate and feed liquor circlip, it is described into
The side surface of liquid leather cup is directly contacted with the inner surface of feed liquor cylindrical portion.The side surface of the feed liquor leather cup is arranged at intervals with a plurality of
The groove extended along leather cup circumferencial direction, the cross section of the groove are triangle, the smallest angle direction of triangle
Fluid.Multiple diamond-shaped depressions are arranged at intervals between two neighboring groove
In the present embodiment, the triangle is right angled triangle, other two acute angle of triangle is 30 ° and 60 °, 30 °
Acute angle is towards flow direction.The groove can further improve the wear-resistant seal performance of feed liquor piston.Adjacent three diamond shapes
Recessed portion is arranged in isosceles triangle, and the cross section of the diamond-shaped depression is triangle.The width of the groove is 4.5mm
Between, the spacing of groove is 5.0mm.The side length of the diamond-shaped depression is 3.0mm, and diamond-shaped depression depth is 4.0mm, diamond shape
Recessed portion center angle is 10 °.
Through detecting, the average life span of the feed liquor piston is 149.3h, its average life span improves compared with standard piston
138.2%.
The drain piston includes drain steel core, drain leather cup, drain pressing plate and drain circlip, the side of the drain leather cup
Surface is directly contacted with the inner surface of drain cylindrical portion.The side surface of the drain leather cup is arranged at intervals with multiple along drain leather cup
The excurvation hook that thickness direction extends, the inner surface interval of the drain cylindrical portion are arranged multiple interior curved with the matching of excurvation hook
Hook, the interior crotch part are set to along the slot that the inner surface length direction of drain cylindrical portion extends.Meeting when drain piston moves
By Drainage pipe, when Drainage pipe is relatively large in diameter, drain piston is easy by slight offset occurs when Drainage pipe
Fluid is caused to penetrate between drain piston and drain cylindrical portion.Excurvation hook is connected with interior crotch part, so that drain piston is tight
Closely connected conjunction drain cylindrical portion, when by Drainage pipe, since drain piston and the relative position of drain cylindrical portion are fixed, drain
Piston will not shift, to guarantee that drain fluid does not penetrate between drain piston and drain cylindrical portion.
Following index is measured before and after Treatment of Sludge:
1, total solid, volatile total solids
The crucible of clean calcination to constant weight (about 6min under the conditions of 600 DEG C) is weighed, 10ml sludge is measured and is put into crucible
In, crucible is put into after being toasted 24 hours in 105 DEG C of baking oven and is taken out, is placed in drier and be cooled to room temperature, then weigh G2.
Crucible is put into 600 DEG C of Muffle furnaces calcination 2 hours, the G3 that weighs is put into after being cooled to room temperature in drier after taking-up.
Sludge total solid=(G2-G1)/sludge volume
Sludge volatile total solids=(G3-G2)/sludge volume
2, COD COD
A certain amount of potassium bichromate and catalyst sulfuric acid silver is added in sampling, when being heated to reflux one section in strong acid medium
Between, part potassium bichromate is oxidized substance reduction in water sample, remaining potassium bichromate is titrated with iron ammonium sulfate, according to trumpet
The amount of potassium bichromate calculates the value of COD.
3, sludge settling property measures
Static sedimentation is carried out to the sludge by 15 days digestion reactions, the specific steps are will after digestion in 15 days mud sample
It moves in the graduated cylinder of high 0.5m, observes and records interfacial level and change with time
4, sludge filtration performance measurement
The resistivity of Buchner funnel method measurement sludge.
5, cavitation device energy consumption calculation
Handle power consumed by every kilogram of sludge are as follows:
Wherein, Δ h is the pressure difference at cavitation device both ends, ThFor the cavitation time.
By the present invention treated excess sludge carries out digestion reaction the 20th day in aerobic sigestion reactor when always consolidate
Body removal rate reaches 51.6%, and digestion reaction is carried out in aerobic sigestion reactor without the excess sludge that the present invention is handled
Total solid removal rate is 42.6% at the 20th day.
By the present invention treated excess sludge carries out digestion reaction the 20th day in aerobic sigestion reactor when chemistry
Oxygen demand removal rate reaches 52.0%, and is digested in aerobic sigestion reactor without the excess sludge that the present invention is handled
Total solid removal rate is 39.5% when reacting the 20th day.
At digestion reaction initial stage, the resistivity of excess sludge not processed by the invention in aerobic sigestion reactor is compared with through this hair
The excess sludge of daylight reason is small, but with the increase of digestion reaction time, and after digestion reaction 15 days, processed by the invention is surplus
The resistivity of remaining sludge is less than not processed by the invention.
The power for measuring cavitation device consumption of the present invention is 512W/kg.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although explaining in detail referring to preferred embodiment to the present invention, those skilled in the art are answered
Work as understanding, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (3)
1. activated-sludge processing apparatus, which is characterized in that including cavitation device, the cavitation device includes feed liquor part, cavitation part
And discharge portion；The cavitation partial interior is cavitation cavity, is equipped with hollow rotation axis and lock chamber, institute in the cavitation chamber body
It states hollow rotation axis and air accumulator is connected to by regulating valve, the compressed air in air accumulator enters hollow rotation axis by regulating valve,
The hollow rotation axis is set to the cental axial position of cavitation part and extends to feed liquor part, and one end close to discharge portion is
Spherical shape, one end inside lock chamber is the spherical shape to match with the shape of hollow rotation axis one end spherical shape, and the two is mutual
Fitting is so that hollow rotation axis is rotatably coupled lock chamber；One end that the hollow rotation axis is located at feed liquor part is equipped with cavitation
Head is induced, the inside of the cavitation induction head is equipped with the duct of multiple supplied gas flowing, and the cavitation induces the nearly feed liquor portion of head rest
The outer surface divided is equipped with blade, and the bottom surface that the cavitation induces head close to cavitation part is equipped with rotation orifice plate, the rotating hole
Plate offers multiple spaced semicircle orifices along its edge, and the axis of semicircle orifice and hollow rotation axis axis are in 15 ° of angles, and institute
It states rotation orifice plate at least two to be overlapped mutually, one of rotation orifice plate is fixed, another rotation orifice plate is lured by cavitation
Top guide drives and rotates；The feed liquor part is divided into feed liquor tapered portion and feed liquor cylindrical portion, and the feed liquor tapered portion is directly connected to
Cavitation part, and the feed liquor tapered portion is connected with input duct, and feed liquor piston is equipped in the feed liquor cylindrical portion, the feed liquor is living
Plug includes feed liquor piston head and feed liquor connecting rod, and the feed liquor connecting rod connects motor, drives feed liquor piston head along cavitation portion centers
Axis back and forth movement；The discharge portion is equally divided into drain tapered portion and drain cylindrical portion, and the drain tapered portion directly connects
Cavitation part is connect, and the drain tapered portion is connected with Drainage pipe, is equipped with drain piston, the drain in the drain cylindrical portion
Piston includes drain piston head and drain connecting rod, and the drain connecting rod connects motor, drives drain piston head along cavitation part
Mandrel line back and forth movement；The feed liquor piston includes feed liquor steel core, feed liquor leather cup, feed liquor pressing plate and feed liquor circlip, the feed liquor
The side surface of leather cup is directly contacted with the inner surface of feed liquor cylindrical portion, and the side surface of the feed liquor leather cup is arranged at intervals with a plurality of edge
The groove that leather cup circumferencial direction extends, the cross section of the groove are triangle, the smallest angle direction stream of triangle
Body is arranged at intervals with multiple diamond-shaped depressions between two neighboring groove；The drain piston includes drain steel core, drain skin
Bowl, drain pressing plate and drain circlip, the side surface of the drain leather cup are directly contacted with the inner surface of drain cylindrical portion, the row
The side surface of liquid leather cup is arranged at intervals with multiple excurvation hooks extended along drain leather cup thickness direction, the drain cylindrical portion
Multiple interior crotch parts to match with excurvation hook are arranged in inner surface interval, and the interior crotch part is set to the interior table along drain cylindrical portion
In the slot that face length direction extends；The cavitation part includes hollow shell, and institute's hollow shell includes outer layer, internal layer and lasso,
The inner surface of the outer layer is arranged at intervals with multiple flexible support framves, is filled with acoutic fibre board between adjacent flexible support frame,
It reduces noise and reduces vibration.
2. activated-sludge processing apparatus according to claim 1, which is characterized in that be additionally provided with envelope in the hollow rotation axis
Close the baffle of lock chamber.
3. activated-sludge processing apparatus according to claim 1, which is characterized in that the cavitation induction head is by porous ceramics
It is made, the surface that the hollow rotation axis is located at the part inside cavitation induction head is provided with multiple apertures, and gas is in addition to that can lead to
The opening for crossing the end of hollow rotation axis enters outside feed liquor cylindrical portion and can also be induced by the aperture and cavitation of hollow rotation axis
The duct of head enters feed liquor cylindrical portion.
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| WO2018201303A1 (en) * | 2017-05-02 | 2018-11-08 | 东莞源控环保科技有限公司 | Hydrodynamic cavitation sludge-reduction machine and wastewater treatment method thereof |
| CN112047425A (en) * | 2020-09-23 | 2020-12-08 | 哈尔滨理工大学 | Three-stage hydrodynamic cavitation device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1605376A (en) * | 2004-09-09 | 2005-04-13 | 上海交通大学 | Convolution cavitation device |
| CN201127857Y (en) * | 2007-11-21 | 2008-10-08 | 黄永刚 | Novel cavitator |
| CN203051096U (en) * | 2013-01-19 | 2013-07-10 | 吉林大学 | Sealed wear-resistant slush pump piston |
-
2016
- 2016-07-11 CN CN201610550159.XA patent/CN105948441B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1605376A (en) * | 2004-09-09 | 2005-04-13 | 上海交通大学 | Convolution cavitation device |
| CN201127857Y (en) * | 2007-11-21 | 2008-10-08 | 黄永刚 | Novel cavitator |
| CN203051096U (en) * | 2013-01-19 | 2013-07-10 | 吉林大学 | Sealed wear-resistant slush pump piston |
Non-Patent Citations (2)
| Title |
|---|
| 水力空化法破解剩余污泥的实验研究;宋俊威;《中国优秀硕士学位论文全文数据库（工程科技I辑）》;20120315(第3期);第B027-467页 |
| 水力空化破解剩余污泥过程与机理研究;黄永刚;《中国博士学位论文全文数据库（工程科技Ⅰ辑）》;20150715(第7期);第1.1节，第1.4节，第2.2节，图2.1-图2.4 |
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