CN104860503B - sewage sludge secondary deep dewatering device - Google Patents
sewage sludge secondary deep dewatering device Download PDFInfo
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- CN104860503B CN104860503B CN201510259535.5A CN201510259535A CN104860503B CN 104860503 B CN104860503 B CN 104860503B CN 201510259535 A CN201510259535 A CN 201510259535A CN 104860503 B CN104860503 B CN 104860503B
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- 239000010801 sewage sludge Substances 0.000 title claims abstract description 21
- 230000018044 dehydration Effects 0.000 claims abstract description 49
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 49
- 238000001914 filtration Methods 0.000 claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 239000004744 fabric Substances 0.000 claims description 25
- 238000007599 discharging Methods 0.000 claims description 19
- 239000003638 chemical reducing agent Substances 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 235000008429 bread Nutrition 0.000 claims 1
- 230000008450 motivation Effects 0.000 claims 1
- 239000010802 sludge Substances 0.000 abstract description 55
- 230000009471 action Effects 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 4
- 230000003993 interaction Effects 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 9
- 238000007906 compression Methods 0.000 description 9
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- 230000003321 amplification Effects 0.000 description 5
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- 239000008187 granular material Substances 0.000 description 5
- 238000003199 nucleic acid amplification method Methods 0.000 description 5
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- 230000008859 change Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241000272525 Anas platyrhynchos Species 0.000 description 1
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- 230000001133 acceleration Effects 0.000 description 1
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- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
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- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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Landscapes
- Filtration Of Liquid (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of sewage sludge secondary deep dewatering device, device is fed from storage bin feeding press filtration chamber by the higher sludge of preliminary hydro-extraction moisture content, simultaneously using two deep dehydration sub-devices, each sub-device can complete independently deeply dehydrating sludge, efficiency doubles than single dehydration device；During secondary deep dewatering, extrude the power drive mechanism action in transmission system, drive draw back plate, so as to drive the first toggle link and the second toggle link to push ahead, to act on corresponding stripper plate, during extruding sludge, by the interaction force of two sub-devices, to realize extruding mutually, only need extraneous (power drive mechanism) less power, when the first toggle link and the second toggle link are in same linear position, reach the most labour-saving stage, as long as external force keeps the position of draw back plate to meet the high pressure press filtration deep dehydration to sludge, so as to obtain the low sludge of moisture content.
Description
Technical field
The present invention relates to sewage sludge process field, specifically a kind of sewage sludge secondary deep dewatering device.
Background technology
Sludge is the product after sewage disposal, and a large amount of sludge produced after current sewage disposal need further processing, take off
Water is the important step of Treatment of Sludge, the purpose is to which most of moisture in sludge is removed, is enriched with solids level, is greatly decreased
Sludge volume improves sludge calorific value and saves the energy to reduce investment outlay, and the minimizing and follow-up disposal for sludge have important
Meaning.Dehydration generally can be divided into mechanical dehydration and desiccation dehydration, and desiccation is dehydrated by consuming substantial amounts of heat by the water in sludge
Divide evaporation so as to realize the deep dehydration of sludge, mechanical dehydration is dewatering type most effective, that energy consumption is minimum, currently employed conditioning
And mechanical means carries out deep dehydration to sludge and can generally moisture content is reached 80%-60%.
Mechanical dehydration mode and equipment mainly have belt type filter dehydration, centrifugal dehydration, plate compression dehydration three major types, belt
Filtering means dehydration is by flocculation, gravity dehydration, wedge-shaped dehydration, dehydration technology, high press-dehydrating, and the extruding between realizes that continuity takes off
Water, the filter cake moisture content after dehydration is about in 75%-80%.Centrifugal dehydration is the density contrast using solid-liquid two-phase, is revolved by high speed
The centrifugal acceleration turned makes solid phase and liquid phase separation, reaches centrifugal sedimentation, general 80% using centrifugal dehydration moisture content of the cake
Left and right.Plate compression dehydration is extruded sludge by screw pump, and moisture is by filter cloth, and sludge is in sheet frame, squeezing
Pressure is general in 1.6Mpa, and the moisture percentage in sewage sludge of diaphragm plate frame filter press dehydration is general 60% or so.Dehydration equipment also has dish
Spiral shell dewaterer, steel belt machine, dish spiral shell dewaterer utilize the filter space that is formed between rotating ring and stationary ring to realize dehydration, but are bad at
The dehydration for the sludge that grain is big, hardness is big, moisture percentage in sewage sludge is between 75%-80%.
Superelevation compression elasticity squeezer is that a kind of pressure is bigger, more efficient filtering equipment and solid-liquid separating equipment, entirely
Process is broadly divided into the charging -- Four processes such as elasticity squeezing -- connecing liquid -- discharging.It is fed filtration first, by feed pump by thing
Material is transported to filter chamber, carries out separation of solid and liquid by the press filtration of feed pump while charging, i.e., once filters；Elasticity squeezing, equipment
One end fix, the other end by hydraulic jack apply ambient pressure, pass through elastic force-transmitting device (spring) compress chamber space
Squeezed, i.e. twice pressing；Filtrate is discharged, the filter that will be filtered out by mobile liquid dish in fed filtration and elastic expressing process
Liquid is discharged, and is that space is conceded in next step discharging；Automatic pulling plate, automatic pulling plate mechanism passes through the transmission in transmission and drawing device
Chain, filter cake Automatic-falling is transported by the transporting equipment of bottom, capital equipment organic frame and control system, filter plate and filter cloth system,
Automatic pulling plate mechanism, Jie Ye mechanisms.The equipment pressure, directly from the pressure of hydraulic jack, is direct squeezing, squeeze pressure can
It is 1.0~1.5h to reach the 5-7 MPa single batch work periods, and operating efficiency is 3-4 times of diaphragm filter press.The spring of the equipment
Need to be subjected to alternate load, and load is very big, the requirement for spring is higher, while the pressure of the equipment is larger, for dynamic
Force system requires high.
For it is current a large amount of can be (belt machine, folded by the dehydration equipment of sludge dewatering to moisture content 80% or so what is used
Spiral shell machine, centrifuge etc.) for, these equipment are all substituted for for deeply dehydrating sludge or super-pressure dehydration equipment, thrown
Enter larger and be a kind of larger waste for the existing equipment used.So, invention one kind can match somebody with somebody with these equipment
Cover that the use and then equipment of realizing secondary deep dewatering is significant, at the same be also reality in the urgent need to.
The content of the invention
In view of this, after the processing that the present invention exists for above-mentioned prior art moisture percentage in sewage sludge it is high, high to power demand,
The problem of energy consumption is big there is provided a kind of energy consumption it is low, realize secondary deep dewatering further to reduce the Sewage of moisture percentage in sewage sludge
Mud secondary deep dewatering device.
The technical solution of the present invention is to provide a kind of sewage sludge secondary deep dewatering device of following structure, bag
Two deep dehydration sub-devices and extruding transmission system are included, two described deep dehydration sub-devices are symmetrically divided into extruding transmission
The both sides of system, each deep dehydration sub-device includes cylinder, storage bin, the stripper plate being arranged in cylinder and is arranged on cylinder
The bottom plate of body bottom, forms press filtration chamber between described stripper plate and bottom plate, described storage bin be located above press filtration chamber and with
It is connected；Drainage mechanism of the described bottom plate provided with moisture discharge in voltage supply filter chamber；Described extruding transmission system includes
Power drive mechanism, draw back plate, the first toggle link and the second toggle link, described power drive mechanism is connected with draw back plate to be pushed away with driving
Arm-tie motion, the first described toggle link and one end of the second toggle link are respectively hinged at the both sides of draw back plate, the first toggle link and second
The other end of toggle link is respectively hinged on corresponding stripper plate.
Using above structure, the present invention compared with prior art, with advantages below：It is higher by preliminary hydro-extraction moisture content
Sludge be fed device from storage bin send into press filtration chamber, while using two deep dehydration sub-devices, each sub-device can
Complete independently deeply dehydrating sludge, efficiency is doubled than single dehydration device；During secondary deep dewatering, in extruding transmission system
Power drive mechanism action, drive draw back plate, it is corresponding to act on so as to drive the first toggle link and the second toggle link to push ahead
Stripper plate, during extruding sludge, by the interaction force of two sub-devices, to realize mutual extruding,
Extraneous (power drive mechanism) less power is only needed, when the first toggle link and the second toggle link are in same linear position, is reached
The most labour-saving stage, as long as external force keeps the position of draw back plate to meet the high pressure press filtration deep dehydration to sludge, so that
To the low sludge of moisture content.
Preferably, described actuating unit includes hydraulic motor, the first gear wheel, the second gear wheel and little gear, institute
The hydraulic motor stated is connected with the first gear wheel, the second gear wheel with little gear by gear pair, described little gear and the
One gear wheel is fixedly connected with one heart, and the end of described draw back plate is articulated with the eccentric position of the second gear wheel, is formed crank and is connected
Linkage.Using the structure, engaged by hydraulic motor tooth with the first gear wheel, form the once amplification and deceleration of power, then led to
The secondary amplification and deceleration of little gear and second largest gear formation power are crossed, by the push-and-pull for being arranged on second largest gear eccentricity position
Plate, linear motion is converted into by the second bull gear drive, then by draw back plate and the amplification of the one or two toggle link power, so that real
Now only need to the less driving source i.e. achievable superelevation press filtration to sludge.
Preferably, described drainage mechanism, which is included in, offers the multiple logical aperture of shunting and liquid flows of supplying water on bottom plate
Road, plate upper surface is wrapped in filter cloth, and described fluid passage one end is connected with drainpipe, and the other end is connected with air inlet pipe, institute
The air inlet pipe stated is connected with high-pressure air source.Because filter cloth was used after a period of time, mud granule is easily distributed on filter cloth, blocks net
Hole, causes dewatering efficiency to reduce, and high-pressure air source is connected with bottom plate and filter cloth using air inlet pipe, after certain time, opens
Source of the gas and controlled valve, gases at high pressure rinse the sludge blocked on filter cloth well, without being cleaned with water, and cleaning filter cloth is very
It is convenient.
Preferably, cylinder offer respectively up and down be provided with charging aperture and discharging opening, described charging aperture into
Expect flashboard, described discharge outlet is provided with discharging flashboard, and input and output material flashboard is driven by flashboard pusher cylinder, and described flashboard is pushed away
Cylinder of taking offence is corresponded with input and output material flashboard.Sludge enters press filtration chamber through storage bin from charging aperture, and during press filtration, input and output material flashboard is equal
Close, after press filtration terminates, open input and output material flashboard, the sludge after processing is released from discharging opening.
Preferably, the inner bottom surface of the inner bottom surface of described feed inlet and outlet and press filtration chamber is contour, and in feed inlet and outlet
Offered on bottom surface and be provided with spring in corresponding flashboard slot, described flashboard slot and fill out cover plate, described cover plate fixation of filling out is set
Put in the upper end of spring.It is that flashboard can be achieved to be inserted into flashboard slot using the structure, meanwhile, flashboard fills out cover plate when opening again can be with
Flashboard slot is closed under the action of the spring, prevents sludge from entering next task of influence flashboard in flashboard slot.
Preferably, being provided with mud layer dredging structure on described stripper plate, described mud layer dredging structure extends internally
To press filtration intracavitary.After being extruded due to sludge, its void ratio diminishes, and easily blocks the circulation of water, causes moisture to be difficult discharge, especially
It is that under high pressure press filtration, the space of sludge blocks even more serious, forms the runner of water in sludge blanket using mud layer dredging structure, easily
In water discharge.
Preferably, described mud layer dredging structure is hollow needle structure, multiple through holes are offered thereon, and in mud
The surface of layer dredging structure is covered with a metafiltration cloth.The blocking of mud layer dredging structure can so be prevented.
Preferably, described deep dehydrator also includes the helix transporting device for feeding, described spiral transferring
Sending device includes the first transportation section and the second transportation section, the rotary orientation of the first transportation section and the second transportation section on the contrary, the two
Storage bin of the discharging opening respectively with two deep dehydration sub-devices is corresponding, and the middle upper part of helix transporting device is provided with charging
Bucket.The speed of sludge conveying can be improved by being conveyed using bidirectional screw, and spiral shell is arranged on using oppositely oriented spiral and charging
Revolve the centre of conveyer, it is ensured that the sludge that the external world enters can be filled by impartial two deep dehydration that are transported to of auger conveyor
In putting, the balance for power plays an important role.
Preferably, the barrel wall at the stripper plate movement is cylindrical structural, on cylinder inboard wall top provided with local
Reducer, the inner-diameter portion of local reducer is more than the internal diameter of cylindrical tube body wall, and is installed in the part of local reducer
There is the rotary cylinder for driving stripper plate rotation.Another part diameter increase of the local reducer in a circumferential direction, rotary pneumatic
Cylinder is arranged on the eccentric throw for having one section on the asymmetric line of cylinder from center line, to provide the power needed for driving stripper plate rotation
Square.
Preferably, described deep dehydrator also includes first position sensor and second place sensor, it is described
First position sensor be arranged on the second gear wheel beside, to detect the rotation position of the second gear wheel, described second
Put sensor to be arranged at local reducer, to detect the position of stripper plate.
Brief description of the drawings
Fig. 1 is sewage sludge secondary deep dewatering apparatus structure schematic diagram of the present invention；
As illustrated, 1, cylinder, 2, storage bin, 3, stripper plate, 4, bottom plate, 5, press filtration chamber, 6, draw back plate, 7-1, the first elbow
Bar, 7-2, the second toggle link, 8, hydraulic motor, the 9, first gear wheel, the 10, second gear wheel, 11, little gear, 12, aperture, 13, liquid
Body runner, 14, filter cloth, 15, drainpipe, 16, air inlet pipe, 17, high-pressure air source, 18, charging aperture, 18-1, charging flashboard, 19, go out
Material mouth, 19-1, discharging flashboard, 20, flashboard pusher cylinder, 21, flashboard slot, 21-1, spring, fill out cover plate at 21-2, and 22, mud layer dredges
Logical structure, 23, helix transporting device, 23-1, the first transportation section, 23-2, the second transportation section, 23-3, feed hopper, 24, local become
Footpath section, 25, rotary cylinder, 26, first position sensor, 27, second place sensor.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
The present invention covers any replacement, modification, equivalent method and scheme made in the spirit and scope of the present invention.For
Make the public have the present invention thoroughly to understand, concrete details is described in detail 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 accompanying drawing of the present invention
In in order to illustrate the need for, be not drawn to scale accurately completely, be explained herein.
As shown in figure 1, a kind of sewage sludge secondary deep dewatering device of the present invention, including two deep dehydration sub-devices
With extruding transmission system, two described deep dehydration sub-devices are symmetrically divided into the both sides of extruding transmission system, each depth
Dehydration sub-device includes cylinder 1, storage bin 2, the stripper plate 3 being arranged in cylinder 1 and the bottom plate 4 for being arranged on the bottom of cylinder 1,
Press filtration chamber 5 is formed between described stripper plate 3 and bottom plate 4, described storage bin 2 is located at the top of press filtration chamber 5 and coupled logical；
Drainage mechanism of the described bottom plate 4 provided with moisture discharge in voltage supply filter chamber 5；Described extruding transmission system includes power transmission
Mechanism, draw back plate 6, the first toggle link 7-1 and the second toggle link 7-2, described power drive mechanism is connected with draw back plate 6 to be pushed away with driving
Arm-tie 6 is moved, and the first described toggle link 7-1 and the second toggle link 7-2 one end are respectively hinged at the both sides of draw back plate 6, the first elbow
Bar 7-1 and the second toggle link 7-2 other end are respectively hinged on corresponding stripper plate 3.
Described actuating unit includes hydraulic motor 8, the first gear wheel 9, the second gear wheel 10 and little gear 11, described
Hydraulic motor 8 is connected with the first gear wheel 9, the second gear wheel 10 with little gear 11 by gear pair, described little gear 11
With the first gear wheel 9 is concentric is fixedly connected, the end of described draw back plate 6 is articulated with the eccentric position of the second gear wheel, is formed
Toggle.
For the design of draw back plate, set square structure, especially isoceles triangle plate, the first toggle link 7-1 and the can be used
Two toggle link 7-2 are hinged respectively at two summits on isoceles triangle plate base, and another summit is hinged on the inclined of the second gear wheel
Heart position.Certainly, this is only a more preferred example, however it is not limited to this example, for example, it is also possible to pass through other connecting rods
Mechanism.
Described drainage mechanism, which is included in, offers multiple supply water shunting logical apertures 12 and flow channel for liquids 13 on bottom plate 4,
The upper surface of bottom plate 4 is wrapped in filter cloth 14, and described one end of fluid passage 13 is connected with drainpipe 15, the other end and the phase of air inlet pipe 16
Even, described air inlet pipe 16 is connected with high-pressure air source 17.Because filter cloth was used after a period of time, mud granule is easily distributed in filter cloth
On, mesh is blocked, causes dewatering efficiency to reduce, high-pressure air source is connected with bottom plate and filter cloth using air inlet pipe, a timing is used
Between after, open source of the gas and controlled valve, gases at high pressure rinse the sludge blocked on filter cloth well.
In offering respectively up and down for cylinder 1 charging is provided with charging aperture 18 and discharging opening 19, described charging aperture 18
Discharging flashboard 19-1 is provided with flashboard 18-1, described discharging opening 19, input and output material flashboard is driven by flashboard pusher cylinder 20, institute
The flashboard pusher cylinder 20 stated is corresponded with input and output material flashboard.The sealing material such as rubber can be set in described input and output material flashboard lower end
Material.
The inner bottom surface of the inner bottom surface of described feed inlet and outlet and press filtration chamber 5 is contour, and is opened on the inner bottom surface of feed inlet and outlet
Spring 21-1 is provided with provided with corresponding flashboard slot 21, in described flashboard slot 21 and cover plate 21-2 is filled out, and described fills out cover plate 21-
2 are fixedly installed on spring 21-1 upper end.
It should be noted that the term such as heretofore described " bottom plate ", " inner bottom surface ", is extruded both with respect to stripper plate
For direction, specifically in figure, the bottom plate of two deep dehydration sub-devices is using the position in scheming as left side and right side.
Mud layer dredging structure 22 is installed, described mud layer dredging structure 22 extends inwardly to pressure on described stripper plate 3
In filter chamber 5.The development length of mud layer dredging structure 22 is adjustable, for example with adjustable diameter and screw adjusting.
Described mud layer dredging structure 22 is hollow needle structure, and multiple through holes are offered thereon, and in mud layer dredging
The surface of structure is covered with a metafiltration cloth.Mud layer dredging structure 22 can use pin, open up thereon in addition to using said structure
There is groove, its end is pointed, and other parts are cylindric or rectangular-shaped.
Described deep dehydrator also includes the helix transporting device 23 for feeding, described helix transporting device bag
Include the first transportation section 23-1 and the second transportation section 23-2, the first transportation section 23-1 and the second transportation section 23-2 rotary orientation phase
Instead, storage bin 2 of the discharging opening of the two respectively with two deep dehydration sub-devices is corresponding, on the centre of helix transporting device 23
Side is provided with feed hopper 23-3.
Barrel wall at the movement of stripper plate 3 is cylindrical structural, and local reducer is provided with the upper inside wall of cylinder 1
24, the inner-diameter portion of local reducer 24 is more than the internal diameter of cylindrical tube body wall, and is installed in the part of local reducer 24
There is the rotary cylinder 25 for driving stripper plate 3 to rotate.Another part diameter increase of the local reducer in a circumferential direction, rotation
Cylinder is arranged on the eccentric throw for having one section on the asymmetric line of cylinder from center line, to provide needed for driving stripper plate rotation
Torque.
Described deep dehydrator also includes first position sensor 26 and second place sensor 27, described first
Position sensor 26 is arranged on the side of the second gear wheel 10, to detect the rotation position of the second gear wheel 10, described second
Put sensor 27 to be arranged at local reducer 24, to detect the position of stripper plate 3.
Sewage sludge secondary deep dewatering method flow is：
1), the sludge after preliminary hydro-extraction enters storage bin, opens charging aperture, and be pushed into press filtration chamber by storage bin
It is interior, keep feed inlet and outlet to be closed thinking that press filtration is prepared；
2) the first toggle link and the second toggle link, are driven by extruding transmission system, the first toggle link and the second toggle link are respectively to two
The stripper plate force of deep dehydration sub-device, starts to carry out press filtration to sludge, is discharged moisture from press filtration intracavitary by drainage mechanism；
3) after, dehydration is finished, feed inlet and outlet is opened, the mud cake of press filtration intracavitary is pushed out
In step 2) after, with the progress of compression, the now void ratio of sludge very little, the passage quilt of moisture circulation
Sludge blockage, is difficult to discharge through filter cloth, under the reverse drive of extruding transmission system, and stripper plate returns to the local change of cylinder
Footpath Duan Chu, second place sensor detects stripper plate, and controller is signaled to stripper plate rotary cylinder, and cylinder is to stripper plate
One turning moment, stripper plate rotates an angle；Hydraulic motor is rotated forward again, and driving stripper plate is again to press filtration
Sludge carry out secondary extrusion, when stripper plate is pushed into extreme position, now the enlarge-effect of power is maximum, carries out pressurize, right
Sludge continues the super-pressure press filtration regular hour, untill no moisture comes out.
For the cleaning of drainage mechanism, moisture is after discharging tube discharge, and the valve closed on drainpipe opens air inlet pipe valve
Door, connects high-pressure air source, the mud granule of aperture clogs on filter cloth and bottom plate is rinsed.
Concrete operating principle is as follows：
Entered by the sludge of preliminary hydro-extraction moisture content higher (80% or so) and helical feed is entered by feed hopper
In device, under auger conveyor conveying, the sludge of left and right two enters the discharging bin of two deep dehydration sub-devices with equal equivalent
Interior, after accumulation after a while, flashboard cylinder operation will feed flashboard and open, and discharging flashboard is closed, and sludge is made in gravity
Press filtration chamber is entered under, after the sludge in storage bin is all introduced into press filtration chamber, charging flashboard is closed.Hydraulic motor starts
Work, hydraulic motor is driven forward the first gear wheel, little gear, the second gear wheel, set square (one kind of draw back plate), toggle link
(including the first toggle link and second toggle link), is transmitted the force on stripper plate, in the incipient stage of compression, due to the void ratio of sludge
Larger, the power required for compression is also smaller, but compression speed is very fast, and now the transmission system of power, which is mainly, plays crushing failure at high speed
Effect, extruding force is smaller.With the progress of extruding, it is more and more real that sludge is compressed, and void ratio diminishes, now required
Compression stress is increasing, and compression displacement is less and less, the amplification position of set square and toggle link in a power, the enlarge-effect of power
Start to show, it is only necessary to the certain power of hydraulic motor, the engagement of two-stage by big little gear and set square, toggle link power it is multiple
Under amplification, huge extruding force is formed at stripper plate press filtration is carried out to sludge.When being compressed to rear half stage, the now hole of sludge
Gap is difficult to discharge through filter cloth, hydraulic motor is inverted, in size than very little, the passage of moisture circulation by sludge blockage
Under gear, set square, the driving of toggle link, stripper plate is returned at the local reducer of cylinder, and second place sensor is detected
Stripper plate, controller is signaled to stripper plate rotary cylinder, and cylinder gives stripper plate one turning moment, and stripper plate rotates one
After angle, hydraulic motor is rotated forward, and drives stripper plate to carry out secondary extrusion to the sludge of press filtration again again, now,
" duck eye " of pin formation when extruding for the first time is supplied to water of compaction circulation passage, and water of compaction is easily by the passage through filter
Cloth, aperture enter flow channel for liquids, and the stage is the packing stage of power, and now right toggle link, set square, left toggle link are in " stretching " shape
Under state, the enlarge-effect of extruding force transmission system power is maximum, and the pressure suffered by sludge is also maximum, carries out pressurize certain time,
Moisture in sludge is constantly extruded, untill no moisture is extruded, press filtration stops.The flashboard that discharges is opened, and sludge is in gravity
In the presence of discharge press filtration chamber.The moisture being press-filtered out enters fluid passage by the aperture on filter cloth, fixed bottom plate, unidirectional
Under valve action, the liquid can only unidirectionally be discharged from discharging tube.After running after a while, such as mud granule is by the mesh of filter cloth
Or the aperture clogs of fixed plate, now open the switch valve at the controlled valve opening of high-pressure air source and air inlet pipe, drainpipe
Door is closed, and gases at high pressure rinse the mud granule blocked on filter cloth and on bottom plate aperture well.
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 its concrete structure allows to change.In a word, 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 (8)
1. a kind of sewage sludge secondary deep dewatering device, including two deep dehydration sub-devices and extruding transmission system, it is special
Levy and be：Two described deep dehydration sub-devices are symmetrically divided into the both sides of extruding transmission system, each deep dehydration dress
Putting includes cylinder (1), storage bin (2), the stripper plate (3) being arranged in cylinder (1) and the bottom plate for being arranged on cylinder (1) bottom
(4) press filtration chamber (5), is formed between described stripper plate (3) and bottom plate (4), described storage bin (2) is located on press filtration chamber (5)
It is square and coupled logical；Drainage mechanism of the described bottom plate (4) provided with the interior moisture discharge of voltage supply filter chamber (5)；Described extruding
Transmission system includes power drive mechanism, draw back plate (6), the first toggle link (7-1) and the second toggle link (7-2), and described power is passed
Motivation structure is connected with draw back plate (6) to drive draw back plate (6) to move, described the first toggle link (7-1) and the second toggle link (7-2)
One end is respectively hinged at the both sides of draw back plate (6), and the other end of the first toggle link (7-1) and the second toggle link (7-2) is respectively hinged at
On corresponding stripper plate (3)；
Mud layer dredging structure (22) is installed, described mud layer dredging structure (22) is extended inwardly on described stripper plate (3)
In press filtration chamber (5)；
Barrel wall at the stripper plate (3) is mobile is cylindrical structural, and local reducer is provided with cylinder (1) upper inside wall
(24), the inner-diameter portion of local reducer (24) is more than the internal diameter of cylindrical tube body wall, and in the portion of local reducer (24)
Divide the rotary cylinder (25) for being provided with and driving stripper plate (3) rotation.
2. sewage sludge secondary deep dewatering device according to claim 1, it is characterised in that：Described power transmission machine
Structure includes hydraulic motor (8), the first gear wheel (9), the second gear wheel (10) and little gear (11), described hydraulic motor (8)
Be connected with the first gear wheel (9), the second gear wheel (10) with little gear (11) by gear pair, described little gear (11) with
First gear wheel (9) is fixedly connected with one heart, and the end of described draw back plate (6) is articulated with the eccentric position of the second gear wheel, shape
Into toggle.
3. sewage sludge secondary deep dewatering device according to claim 1 or 2, it is characterised in that：Described draught engine
Structure, which is included in, offers multiple shunting logical apertures (12) and flow channel for liquids (13), bottom plate (4) upper table bread of supplying water on bottom plate (4)
Filter cloth (14) is wrapped up in, described flow channel for liquids (13) one end is connected with drainpipe (15), and the other end is connected with air inlet pipe (16), institute
The air inlet pipe (16) stated is connected with high-pressure air source (17).
4. sewage sludge secondary deep dewatering device according to claim 1, it is characterised in that：Above and below cylinder (1)
Charging aperture (18) and discharging opening (19) are offered respectively, and described charging aperture (18) place is provided with charging flashboard (18-1), described
Discharging opening (19) place be provided with discharging flashboard (19-1), input and output material flashboard by flashboard pusher cylinder (20) drive, described lock
Plate pusher cylinder (20) is corresponded with input and output material flashboard.
5. sewage sludge secondary deep dewatering device according to claim 4, it is characterised in that：Described feed inlet and outlet
Inner bottom surface and the inner bottom surface of press filtration chamber (5) are contour, and offer on the inner bottom surface of feed inlet and outlet corresponding flashboard slot (21), institute
It is provided with spring (21-1) in the flashboard slot (21) stated and fills out cover plate (21-2), described cover plate (21-2) of filling out is fixedly installed on bullet
The upper end of spring (21-1).
6. sewage sludge secondary deep dewatering device according to claim 1, it is characterised in that：Described mud layer dredging knot
Structure (22) is hollow needle structure, multiple through holes is offered thereon, and be covered with a metafiltration on the surface of mud layer dredging structure
Cloth.
7. sewage sludge secondary deep dewatering device according to claim 2, it is characterised in that：Described deep dehydration dress
Putting also includes the helix transporting device (23) for feeding, and described helix transporting device includes the first transportation section (23-1) and the
Two transportation sections (23-2), the rotary orientation of the first transportation section (23-1) and the second transportation section (23-2) is on the contrary, the discharging opening of the two
Storage bin (2) respectively with two deep dehydration sub-devices is corresponding, the middle upper part of helix transporting device (23) be provided with into
Hopper (23-3).
8. sewage sludge secondary deep dewatering device according to claim 1, it is characterised in that：Described deep dehydration dress
Putting also includes first position sensor (26) and second place sensor (27), and described first position sensor (26) is arranged on
Beside second gear wheel (10), to detect the rotation position of the second gear wheel (10), described second place sensor (27) peace
Mounted in local reducer (24) place, to detect the position of stripper plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510259535.5A CN104860503B (en) | 2015-05-20 | 2015-05-20 | sewage sludge secondary deep dewatering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510259535.5A CN104860503B (en) | 2015-05-20 | 2015-05-20 | sewage sludge secondary deep dewatering device |
Publications (2)
| Publication Number | Publication Date |
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| CN104860503A CN104860503A (en) | 2015-08-26 |
| CN104860503B true CN104860503B (en) | 2017-07-25 |
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| CN201510259535.5A Expired - Fee Related CN104860503B (en) | 2015-05-20 | 2015-05-20 | sewage sludge secondary deep dewatering device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108503180A (en) * | 2018-04-13 | 2018-09-07 | 江万泽 | A kind of riverway sludge circulation recycling device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3779246B2 (en) * | 2002-08-08 | 2006-05-24 | 株式会社鶴見製作所 | Screw type filter dehydrator |
| CN201309880Y (en) * | 2008-11-14 | 2009-09-16 | 浙江德安新技术发展有限公司 | Screw extrusion type sludge dewatering machine |
| CN103663918A (en) * | 2013-12-18 | 2014-03-26 | 中国计量学院 | Plate frame pressure filtration sludge dewatering device and automatic pulling plate method |
| CN204803205U (en) * | 2015-05-20 | 2015-11-25 | 饶宾期 | Sewage sludge secondary degree of depth dewatering device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004305926A (en) * | 2003-04-08 | 2004-11-04 | Kubota Corp | Immersion membrane separation type activated sludge treatment method |
| CN201046937Y (en) * | 2007-05-11 | 2008-04-16 | 广州普得环保设备有限公司 | Novel continuous sludge dewatering machine |
-
2015
- 2015-05-20 CN CN201510259535.5A patent/CN104860503B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3779246B2 (en) * | 2002-08-08 | 2006-05-24 | 株式会社鶴見製作所 | Screw type filter dehydrator |
| CN201309880Y (en) * | 2008-11-14 | 2009-09-16 | 浙江德安新技术发展有限公司 | Screw extrusion type sludge dewatering machine |
| CN103663918A (en) * | 2013-12-18 | 2014-03-26 | 中国计量学院 | Plate frame pressure filtration sludge dewatering device and automatic pulling plate method |
| CN204803205U (en) * | 2015-05-20 | 2015-11-25 | 饶宾期 | Sewage sludge secondary degree of depth dewatering device |
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| CN104860503A (en) | 2015-08-26 |
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