CN105601080B - Sewage sludge minimizing dewatering - Google Patents
Sewage sludge minimizing dewatering Download PDFInfo
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- CN105601080B CN105601080B CN201610161264.4A CN201610161264A CN105601080B CN 105601080 B CN105601080 B CN 105601080B CN 201610161264 A CN201610161264 A CN 201610161264A CN 105601080 B CN105601080 B CN 105601080B
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- Prior art keywords
- dehydration
- cylinder
- support plate
- dewatering
- soon
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
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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
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
Abstract
The invention discloses a kind of sewage sludge minimizing dewaterings, are based on minimizing dehydration device, the minimizing dehydration device includes at least one dehydration module, and the dehydration module includes two-way cylinder(1)With two symmetrically arranged dewatering units(2), each dewatering unit(2)It include dehydration cylinder(2.1), support plate(2.2)And stripper plate(2.3), the support plate(2.2)Positioned at dehydration cylinder(2.1)Outside, the stripper plate(2.3)Positioned at dehydration cylinder(2.1)Inside, in the dehydration cylinder(2.1)It is equipped with feed inlet(2.4);The two-way cylinder(1)If there are two piston rods(1.1), two piston rods(1.1)Respectively with two dewatering units(2)Stripper plate(2.3)Connection.Charging dehydration and press dewatering are carried out at the same time by the present invention, are improved work efficiency, meanwhile, when press dewatering, is also cleverly dehydrated using the pressure of charging, and power using effect is improved.
Description
Technical field
The present invention relates to sewage sludge process field, specifically a kind of sewage sludge minimizing dewatering.
Background technology
Sludge is the product after sewage disposal, and a large amount of sludge needs generated after current sewage disposal are further processed, and
Dehydration is the important link of Treatment of Sludge, the purpose is to remove most of moisture in sludge, so that solids level is enriched with, substantially subtracts
Few sludge volume improves sludge calorific value and energy saving to save the cost of Treatment of Sludge, minimizing for sludge and follow-up
Disposition is of great significance.Mechanical dehydration is dewatering type most effective, that energy consumption is minimum, currently employed conditioning and mechanical means pair
Sludge carries out deep dehydration can make moisture content reach 80%-60% under normal circumstances.
Mechanical dehydration mode and equipment mainly have belt type filter dehydration, centrifugal dehydration, plate compression dehydration three categories.For
For municipal sludge, the filter cake moisture content after band filter, folded spiral shell dewaterer, centrifuge dewatering is about in 75%-80%, diaphragm plate
The moisture percentage in sewage sludge of frame filter press dehydration is generally 60% or so.
Superelevation compression elasticity squeezer is a kind of pressure 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.The equipment pressure is directly from hydraulic cylinder
Pressure, directly to squeeze, squeeze pressure can reach the 5-7 MPa single batch work periods as 1.0 ~ 1.5h, and working efficiency is diaphragm
3-4 times of filter press, dehydrated sludge moisture content can reach 50% or so.But that there are energy consumptions is big, equipment cost is high, squeezing bullet
The problems such as spring needs to be replaced frequently.
It can be seen from the above, near 60% diaphragm plate frame filter press below of moisture percentage in sewage sludge and superelevation compression elasticity can be squeezed
Machine, workflow are all chargings in first cavity, are then squeezed again, and charging and squeezing successively carry out, and pulling plate
When need monolithic or in batches pulling plate, cause the work period long, working efficiency is not high, so that diaphragm plate frame squeezer one
Work period needs 2-3 hours.In addition, moisture content after sludge dewatering usually rule of thumb determines, it is extremely difficult to one
The moisture content of accurate moisture content and target, predictability is poor, and certain influence is brought to follow-up use of sludge, difficult
To realize low cost, the processing of efficient sludge reduction.
Invention content
In view of this, the present invention big, of high cost, efficiency the is low technical problem of existing energy consumption for the above-mentioned prior art,
Provide that a kind of energy consumption is small, efficient, and sewage sludge minimizing dewatering at low cost, and can accurately by Treatment of Sludge extremely
Target moisture content.
Technical solution of the invention is to provide a kind of sewage sludge minimizing dewatering with lower structure, is based on
Minimizing dehydration device, the minimizing dehydration device include at least one dehydration module, and the dehydration module includes double
To oil cylinder and two symmetrically arranged dewatering units, each dewatering unit includes dehydration cylinder, support plate and extruding
Plate, the support plate are located at the outside of dehydration cylinder, and the stripper plate is located at the inside of dehydration cylinder, in the dehydration tube
Body is equipped with feed inlet;The two-way cylinder is set there are two piston rod, and described two piston rods are single with two dehydrations respectively
The stripper plate connection of member;
The minimizing dehydration device further includes two support plate driving mechanisms, described two support plate driving mechanisms
The both sides of dehydration module are located at, the support plate driving mechanism includes support plate connecting rod, support plate push-and-pull mobile jib and pushes away
Oil cylinder, one end of the support plate connecting rod and the support plate of the dehydration module side is drawn to connect one to one, the branch
The other end of fagging connecting rod is connected on support plate push-and-pull mobile jib, and the output end of the push cylinder is connect with push-and-pull mobile jib;
In two symmetrically arranged dewatering units, one of sewage sludge charging dehydration, another dewatering unit is then
Extrusion dehydration, the dewatering unit for feeding dehydration exerts a force to two-way cylinder by its stripper plate, and pushes the dehydration list of extrusion dehydration
The stripper plate of member;In above process, two-way cylinder is passed through or releases hydraulic oil then according to force direction toward corresponding oil pocket;Institute
The opening and closing for stating support plate driving mechanism driving support plate, to realize the discharging of corresponding dewatering unit.
Using the above structure, compared with prior art, the present invention haing the following advantages:It is single by two symmetrical dehydrations
The quantity of the dehydration module of member composition, to set, and is increased and decreased, often by the size of required sewage sludge treating capacity according to actual conditions
Two dewatering units in a dehydration module are arranged symmetrically in the both sides of two-way cylinder, respectively with two piston rods of two-way cylinder
Connection, two-way cylinder can provide dewatering unit the pressure of 5-7MPa, stripper plate be applied to, by stripper plate to entering dehydration tube
The sewage sludge of body is squeezed, to realize the depth minimizing of dehydration and sludge;Two dewatering units, one charging, another
Then stop feeding, when carrying out feeding dehydration under feed pressure effect when one of dewatering unit is fed, the dewatering unit
Feed pressure also by two-way cylinder equipressure force effect on another dewatering unit, to another stopped charging dehydration
Unit carries out press dewatering, the opening and closing of support plate can be realized by support plate driving mechanism, and then easily realize
The discharging of corresponding dewatering unit.Charging dehydration and press dewatering are carried out respectively in two dewatering units of same time pair, are solved
Current sewage-treatment plant charging dehydration and press dewatering are divided into two stages the problem of carrying out, and improve work efficiency, together
When, when press dewatering, is also cleverly dehydrated using the pressure of charging, is improved power using effect, is reduced product energy
Consumption.
As an improvement, the dewatering unit further includes moisture on-line detector, moisture on-line detector installation
In on the stripper plate of dewatering unit or support plate.The moisture content of sludge is surveyed in real time using sludge water content on-line detector
Amount can grasp the moisture content of sludge, and can be accurately controlled to the moisture content for exporting sludge in real time, if that is, sludge does not have
Reach required moisture content, then can squeeze the time by extension and increase squeeze pressure to realize, can accurately reach target
Moisture content.
As an improvement, the moisture on-line detector is using high frequency capacitance field microwave measurement sludge cake thickness direction
Moisture, and the diametric moisture content of sludge cake can be detected as needed, the moisture content for detecting moisture is that entire sludge is aqueous
The average value of rate.It is inaccurate caused by several points to efficiently solve the problems, such as that current moisture percentage in sewage sludge measurement takes, can survey in real time
Measure the moisture content of sludge.
As an improvement, be connected with booster and the solenoid directional control valve of the two-way cylinder are connected, pass through solenoid directional control valve
The pressure oil commutation of two-way cylinder can be achieved, and then realize the charging dehydration of the dewatering unit of left and right two and turning for press dewatering
It changes.It can be achieved, to the high-pressure compressing of sludge, to further decrease moisture percentage in sewage sludge by booster effect.
As an improvement, the dewatering unit further includes sealing plate, multiple fluids are offered in the stripper plate and support plate
Channel, with dehydration cylinder-shaped at a press filtration chamber, the medial surface of stripper plate and support plate is enclosed with filter respectively for stripper plate, support plate
Cloth, lateral surface are connected with sealing plate, and the sealing plate lower end is connected with drainpipe.
As an improvement, the dehydration module is multiple, the multiple dehydration module is arranged side by side, in multiple dehydration modules
Both sides be respectively arranged with fast opening mechanism, the fast opening mechanism includes opening knob soon, opening connecting rod soon, open mobile jib soon and open drive soon
Oil cylinder is moved, is connected one to one on the outside of the dewatering unit for opening knob and corresponding side soon, described one end for opening connecting rod soon
Be connected to and open on knob soon accordingly, the other end is connected to be opened on mobile jib soon, the output end for opening drive cylinder soon with it is fast
Open mobile jib connection.
As an improvement, the knob of opening soon includes commutation circle, resetting spring and limit jacking block, commutation circle installation
It is installed on dehydration tube on dehydration cylinder, and positioned at the outside of support plate, the resetting spring and limit jacking block one-to-one correspondence
On the outer wall of body, the inner wall of the commutation circle is equipped with narrow diameter section and wide path, and the narrow diameter section and wide path are alternately distributed, often
Corresponding narrow diameter section corresponding with the limit combination of jacking block to resetting spring and wide path.When opening knob locking soon, then bullet is being resetted
Under the action of spring, the corresponding narrow diameter section for limiting jacking block and resisting commutation circle is converted opening drive cylinder driving backspin soon to circle, from
And limit jacking block is made to enter wide path, it is fast to realize even if under the action of the spring, the inner wall of commutation circle will not be resisted
It opens.
As an improvement, opening up fluted on commutation circle, the outward flange with fit depressions is equipped on dehydration cylinder,
Commutation circle is mounted on by groove on the outward flange of dehydration cylinder.
As an improvement, the alternatively distributed narrow diameter section and wide path are rendered as curve, cam line style is constituted.The cam line
Type ensures that the movement of limit jacking block is flexible motion without impact, and make the movement of limiting plate there is no stuck show
As.
Description of the drawings
Fig. 1 is the structural schematic diagram of sewage sludge minimizing dewatering;
Fig. 2 is the fast opening mechanism schematic diagram of the present invention;
Fig. 3 is the sectional view of the fast opening mechanisms of Fig. 2;
Fig. 4 is the corresponding flow diagram of the present invention.
As shown, 1, two-way cylinder, 1.1, piston rod, 1.2, booster, 1.3, solenoid directional control valve, 2, dewatering unit,
2.1, it is dehydrated cylinder, 2.12, outward flange, 2.2, support plate, 2.3, stripper plate, 2.4, feed inlet, 2.5, moisture on-line detector,
2.6, sealing plate, 2.7, filter cloth, 2.8, drainpipe, 3, support plate connecting rod, 4, support plate push and pull mobile jib, 5, push cylinder, 6, open soon
Knob, 6.1, commutation circle, 6.2, resetting spring, 6.3, limit jacking block, 7, open connecting rod soon, 8, open mobile jib soon, 9, open driving oil soon
Cylinder, 10, controller, 11, material conveying mechanism.
Specific implementation mode
The invention will be further described in the following with reference to the drawings and specific embodiments.
The present invention covers any replacement, modification, equivalent method and scheme made in the spirit and scope of the present invention.For
So that the public is had thorough understanding to the present invention, is described in detail concrete details in following present invention preferred embodiment, and
Description without these details can also understand the present invention completely for a person skilled in the art.In addition, the attached drawing of the present invention
In be explained herein for the needs of signal not being drawn to scale accurately completely.Wherein, about "inner",
The descriptions such as "outside", "left", "right" are that in contrast, only description needs and introduces these terms, does not constitute to right
It is required that restriction.In addition, the statement about " device " and " mechanism " can be substituted for each other, for example, fast opening mechanism is alternatively referred to as opened soon
Device.
As shown in Figure 1, a kind of sewage sludge minimizing dewatering of the present invention is illustrated, based on minimizing dehydration dress
It sets, the minimizing dehydration device includes at least one dehydration module, and the dehydration module includes two-way cylinder 1 and two
Symmetrically arranged dewatering unit 2, each dewatering unit 2 include dehydration cylinder 2.1, support plate 2.2 and stripper plate
2.3, the support plate 2.2 is located at the outside of dehydration cylinder 2.1, and the stripper plate 2.3 is located at the interior of dehydration cylinder 2.1
Side is equipped with feed inlet 2.4 on the dehydration cylinder 2.1;The two-way cylinder 1 is set there are two piston rod 1.1, and described two
A piston rod 1.1 is connect with the stripper plate of two dewatering units 2 2.3 respectively.The device is mainly sludge deep dehydrator, is taken off
Moisture is two steps, and the first step is the feed pressure dehydration by sludge, and dewatering pressure 0.6-0.8MPa, second step is by height
The pressure of compressing cylinder carries out press dewatering, and squeeze pressure 5-7MPa will by material conveying mechanism 11 after completing minimizing processing
The sludge drawn off from dewatering unit carries out conveying transfer.Two-way cylinder 1 in the present invention is high-voltage oil cylinder, but it should be noted that
High pressure is also only a relative concept, i.e., compared with feed pressure.
In two symmetrically arranged dewatering units, one of sewage sludge charging dehydration, another dewatering unit is then
Extrusion dehydration, the dewatering unit for feeding dehydration exerts a force to two-way cylinder by its stripper plate, and pushes the dehydration list of extrusion dehydration
The stripper plate of member;In above process, two-way cylinder is passed through or releases hydraulic oil then according to force direction toward corresponding oil pocket;Institute
The opening and closing for stating support plate driving mechanism driving support plate, to realize the discharging of corresponding dewatering unit.
The dewatering unit 2 further includes moisture on-line detector 2.5, and the moisture on-line detector 2.5 is installed on
On the stripper plate 2.3 or support plate 2.2 of dewatering unit.The moisture content of sludge is carried out using sludge water content on-line detector real-time
It measures, the moisture content of sludge can be grasped in real time, and can be accurately controlled to the moisture content for exporting sludge, if that is, sludge does not have
There is the moisture content for reaching required, then can squeeze the time by extension and increase squeeze pressure to realize, can accurately reach mesh
Mark moisture content.The moisture on-line detector 2.5 uses the moisture of high frequency capacitance field microwave measurement sludge cake thickness direction,
And the diametric moisture content of sludge cake can be detected as needed, the moisture content for detecting moisture is the flat of entire moisture percentage in sewage sludge
Mean value.
Be connected with booster 1.2 and the solenoid directional control valve 1.3 of the two-way cylinder 1 are connected, and pass through solenoid directional control valve 1.3
The pressure oil commutation of two-way cylinder 1 can be achieved, and then realize the charging dehydration of the dewatering unit of left and right two and turning for press dewatering
It changes.It can be achieved, to the high-pressure compressing of sludge, to further decrease moisture percentage in sewage sludge by booster effect.
The dewatering unit further includes sealing plate 2.6, and multiple fluids are offered in the stripper plate 2.3 and support plate 2.2
Channel, stripper plate 2.3, support plate 2.2 and dehydration cylinder 2.1 form a press filtration chamber, and stripper plate 2.3 is interior with support plate 2.2
Side is enclosed with filter cloth 2.7 respectively, and lateral surface is connected with sealing plate 2.6, and 2.6 lower end of the sealing plate is connected with drainpipe 2.8.
The quantity for the dehydration module being made of two symmetrical dewatering units is by the big of required sewage sludge treating capacity
Small and to be increased and decreased according to actual conditions to set, each two dewatering units being dehydrated in module are arranged symmetrically in two-way cylinder
Both sides.In actual use, generally use multiple or multigroup dehydration module, the multiple dehydration module is arranged side by side, it is described and
Row is set as spatially side by side, rather than only refers in the same horizontal position.According to the actual use situation of multiple dehydration modules, originally
The mechanism that the multiple dehydration modules of invention design cooperate, for example, support plate driving mechanism, fast opening mechanism, etc..Support plate is driven
Motivation structure and fast opening mechanism are for the purpose of the unilateral synchronous interaction for realizing multiple dehydration modules so that multiple dehydration modules can
It cooperates, raising efficiency.
Shown in Fig. 1, the dehydration module is three, and three dehydrations module is arranged side by side, at the minimizing
Reason device further includes two support plate driving mechanisms, and described two support plate driving mechanisms are located at multiple dehydration modules
Both sides, the support plate driving mechanism include support plate connecting rod 3, support plate push-and-pull mobile jib 4 and push cylinder 5, the branch
One end of fagging connecting rod 3 and the support plate 2.2 of the multiple dehydration module side connect one to one, the support plate connecting rod
3 other end is connected on support plate push-and-pull mobile jib 4, and the output end of the push cylinder 5 is connect with push-and-pull mobile jib 4.Pass through
Support plate driving mechanism can realize the opening and closing of support plate, and then easily realize the discharging of corresponding dewatering unit.
It is respectively arranged with fast opening mechanism in the both sides of multiple dehydration modules, as shown in Fig. 2, illustrating the specific of fast opening mechanism
Structure.The fast opening mechanism includes opening knob 6 soon, opening connecting rod 7 soon, open mobile jib 8 soon and open drive cylinder 9 soon, and described is fast
It opens and connects one to one on the outside of knob 6 and the dewatering unit of corresponding side, described one end for opening connecting rod 7 soon is connected to corresponding fast
It opens on knob 6, the other end, which is connected to, to be opened soon on mobile jib 8, and the output end for opening drive cylinder 9 soon is connect with mobile jib 8 is opened soon.
" inside " of the present embodiment meaning is close to 1 side of two-way cylinder, conversely, " outside " then refers to one far from two-way cylinder 1
Side.
The knob 6 of opening soon includes commutation circle 6.1, resetting spring 6.2 and limit jacking block 6.3, the commutation circle 6.1
On dehydration cylinder 2.1, and positioned at the outside of support plate 2.2, the resetting spring 6.2 and limit jacking block 6.3 are one by one
Corresponding to be installed on the outer wall of dehydration cylinder 2.1, the inner wall of the commutation circle 6.1 is equipped with narrow diameter section and wide path, and described is narrow
Diameter section and wide path are alternately distributed, the corresponding narrow diameter section corresponding with the limit combination of jacking block 6.3 of each pair of resetting spring 6.2 and wide diameter
Section.When opening knob locking soon, then under the action of resetting spring, the corresponding narrow diameter section for limiting jacking block and resisting commutation circle, fast
Drive cylinder driving backspin is opened to convert to circle, to make limit jacking block enter wide path, even if under the action of the spring, it will not
The inner wall for resisting commutation circle is opened soon to realize.
It opens up fluted on commutation circle 6.1, the outward flange with fit depressions is equipped on dehydration cylinder 2.1
2.12, commutation circle is mounted on by groove on the outward flange of dehydration cylinder.
The alternatively distributed narrow diameter section and wide path are rendered as curve, constitute cam line style.The cam line style ensures limit
The movement of position jacking block is flexible motion without impact, and make the movement of limiting plate there is no stuck phenomenon.
As shown in figure 3, illustrating the sectional view of fast opening mechanism, it is intended that illustrate that fast opening mechanism coordinates with the installation for being dehydrated cylinder
Relationship.It is found that resetting spring 6.2 and limit jacking block 6.3 are mounted on the radial direction of the outer wall of the external port of dehydration cylinder 2.1 in figure
On, and provided with corresponding positioning telescopic hole, the resetting spring 6.2 is sheathed on 6.3 bottom of limit jacking block, limits jacking block
The boss that 6.3 middle part settings exert a force for spring, may act as the effect of spring base.Limit jacking block 6.3 may pass through on dehydration cylinder 2.1
Positioning telescopic hole move back and forth.Although resetting spring 6.2 and limit jacking block 6.3 are mounted on dehydration cylinder 2.1, this
Embodiment is by resetting spring 6.2 and limit jacking block 6.3 as the part for opening knob 6 soon.Open soon connecting rod 7 by hinge respectively with
Commutation circle 6.1 is connect with mobile jib 8 is opened soon, each opens that mobile jib 8 opens drive cylinder 9 soon with one and multiple connecting rods 8 of opening soon are connect soon.
Electrical features involved by the present embodiment can be controlled by unified controller 10, i.e. the control
Device processed 10 and moisture on-line detector 2.5, push cylinder 5, open the electrical connection of drive cylinder 9 at solenoid directional control valve 1.3 soon;Simultaneously
It connects, is also electrically connected with controller 10, each dehydration in the feed inlet setting feed pipe valve of each dewatering unit
Feed inlet on unit is equipped with feed pipe, and is connected with a total feed pipe.
The operation principle of the present apparatus is as follows:
When work starts, push cylinder driving support plate moves to certain position, and fast opening mechanism closes limit jacking block, support
Plate is fixed on the lateral ends of a position dehydration cylinder, and support plate and stripper plate form a press filtration chamber, moisture content 90%-
99% sewage sludge is conveyed by screw pump or diaphragm pump while entering two-way cylinder wherein side(Such as left side)All is de-
Water unit, at this time the valve opening of left side feed inlet, the closing of right side feed inlet, sludge entrance pass through extruding through filter cloth moisture
Plate and the fluid channel of support plate are entered in the drainpipe of sealing plate and are discharged, and sludge retention is in press filtration intracavitary, with entrance
Sewage sludge is more and more, and the sludge of press filtration intracavitary is also more and more, this stage is that charging is dehydrated, and dewatering pressure is screw pump
Or the operating pressure of diaphragm pump, about 0.6-0.8MPa.
On the other hand, feed pressure also applies the left hand piston bar of two-way cylinder the pressure of 0.6-0.8MPa, double at this time
It does not pressurize actively to oil cylinder, is nature, which is applied to right side by the piston and right hand piston bar of high-voltage oil cylinder
On stripper plate, to realize that the low pressure press dewatering to sludge, right side sludge are compressed, left and right piston rod, left and right dewatering unit
Stripper plate end motion to the right simultaneously, the press filtration cavity space in left side is gradually increased, and inputiing mud volume also further increases, and is a kind of variable
The dehydration of cavity, as left side inputiing mud volume gradually increases, dewatered sludge fills with the press filtration chamber of left end, right side
Sludge is squeezed by the pressure of prolonged 0.6-0.8MPa, and moisture is difficult to be extruded again, at this point, two-way cylinder left chamber is passed through height
Pressure oil pressure so that the squeeze pressure of right dewatering unit reaches 5-7MPa, and right dewatering unit is further dehydrated quilt under high-pressure compressing
Be further compressed, this stage be the high-pressure compressing water smoking, left and right piston rod, left and right dewatering unit stripper plate continue to the right
Side moves, and the press filtration chamber in left side further becomes larger, and sewage sludge can continue into left side dewatering unit by left side enters mud pipe
Further dehydration, moisture are discharged by the drainpipe of the left and right sides.At this point, sludge water content on-line detector detects right side dirt in real time
The moisture content of mud, when sludge reaches required moisture content, controller sends a signal to quick-opening device, and quick-opening device is opened,
Controller is simultaneously emitted by signal to push cylinder, and push cylinder pulls open support plate, simultaneously bi-directionally oil cylinder pushing right hand piston bar,
Sludge is pushed out, sludge falls on device for transporting objects and transfers out.After the completion of sludge conveying, right side push cylinder will
Support plate is back on dehydration cylinder, while quick-opening device is closed.
Right side dewatering unit completes charging dehydration, preliminary press dewatering and high-pressure compressing dehydration, and left side has
Dewatering unit has only completed charging dehydration.At this point, right side enters mud pipe valve is opened, the enters mud pipe valve in left side is closed, Sewage
Mud enters right side dewatering unit, and moisture enters sealing plate and draining by the fluid channel on filter cloth and stripper plate, support plate
Pipe is discharged, and sludge is then trapped within press filtration intracavitary, and the feed pressure on right side has been subjected to left side by the piston rod of high-voltage oil cylinder
Early period, the sludge of charging dehydration carried out low pressure press dewatering, and left side sludge is compressed, and the left and right piston rod of high-voltage oil cylinder, left and right are de-
The stripper plate of water unit moves to the left, and with the progress of dehydration, right side cavity is full of dewatered sludge, at this point, controller is sent out
For signal to solenoid directional control valve, high pressure oil enters the left side cavity of high-voltage oil cylinder, and high-pressure compressing dehydration is carried out to left side sludge, dirty
Mud is further dehydrated and compresses, and the stripper plate continuation of the left and right piston rod, left and right dewatering unit of two-way cylinder moves to the left,
The press filtration cavity on right side further increases at this time, and sewage sludge can be gone successively to.When sludge water content on-line detector detects in real time
When reaching requirement to the moisture content of left side sludge, controller sends a signal to the fast transmitting apparatus and push cylinder in left side, fast to be switched on
Structure is opened, and push cylinder pulls open support plate, and stripper plate pushes sludge that sludge is released dehydration cylinder to taking exercises, and sludge is fallen
It is exported to sludge conveyor.A cycle is completed, so on circulate.
Fast opening mechanism operation principle is to open oil cylinder pushing soon to open mobile jib soon, open connecting rod drive commutation circle rotation soon, and commutation is enclosed
Rotation cam line style internal simultaneously pushes limit jacking block to move downward, and realizes limit, when opening oil cylinder counter motion soon, drives
Commutation circle rotates backward, at this point, limit jacking block is opened under the action of the spring.
Charging dehydration is synchronous with press dewatering to be carried out, and the pressure of charging is made full use of to carry out preliminary press dewatering, effect
Rate is high, saves energy consumption;The moisture content of sludge is measured in real time, the moisture content of mud extraction can be accurately controlled, is the follow-up of sludge
Disposition brings benefit;It is synchronous progress to pull open support plate and carry out discharging to sludge, reduces the current sludge pulling plate unloading time;It should
Device is a kind of modular construction of normal formula, can easily carry out equipment recombination according to the size for the treatment of capacity.
Only preferred embodiments of the present invention are described above, but are not to be construed as limiting the scope of the invention.This
Invention is not only limited to above example, and concrete structure is allowed to vary.In short, all guarantors in independent claims of the present invention
Various change is within the scope of the invention made by shield range.
Claims (8)
1. a kind of sewage sludge minimizing dewatering, is based on minimizing dehydration device, the minimizing dehydration device includes
At least one dehydration module, it is characterised in that:The dehydration module includes two-way cylinder(1)With two symmetrically arranged dehydrations
Unit(2), each dewatering unit(2)It include dehydration cylinder(2.1), support plate(2.2)And stripper plate(2.3), institute
The support plate stated(2.2)Positioned at dehydration cylinder(2.1)Outside, the stripper plate(2.3)Positioned at dehydration cylinder(2.1)It is interior
Side, in the dehydration cylinder(2.1)It is equipped with feed inlet(2.4);The two-way cylinder(1)If there are two piston rods(1.1),
Two piston rods(1.1)Respectively with two dewatering units(2)Stripper plate(2.3)Connection;
The minimizing processing unit further includes two support plate driving mechanisms, described two support plate driving mechanism difference
Positioned at the both sides of dehydration module, the support plate driving mechanism includes support plate connecting rod(3), support plate push and pull mobile jib(4)With
Push cylinder(5), the support plate connecting rod(3)One end and the dehydration module side support plate(2.2)It corresponds
Connection, the support plate connecting rod(3)The other end be connected to support plate push-and-pull mobile jib(4)On;
In two symmetrically arranged dewatering units, one of sewage sludge charging dehydration, another dewatering unit then squeezes
Dehydration feeds the dewatering unit of dehydration and is exerted a force to two-way cylinder by its stripper plate, and push extrusion dehydration dewatering unit it
Stripper plate;In above process, two-way cylinder is passed through or releases hydraulic oil then according to force direction toward corresponding oil pocket;The branch
Fagging driving mechanism drives the opening and closing of support plate, to realize the discharging of corresponding dewatering unit;
The dehydration module is multiple, and the multiple dehydration module is arranged side by side, and is set respectively in the both sides of multiple dehydration modules
It is equipped with fast opening mechanism, the fast opening mechanism includes opening knob soon(6), open connecting rod soon(7), open mobile jib soon(8)Driving is opened soon
Oil cylinder(9), described opens knob soon(6)It connects one to one on the outside of the dewatering unit of corresponding side, described opens connecting rod soon(7)
One end be connected to and open knob soon accordingly(6)On, the other end is connected to opens mobile jib soon(8)On, described opens drive cylinder soon
(9)Output end and open mobile jib soon(8)Connection.
2. sewage sludge minimizing dewatering according to claim 1, it is characterised in that:The dewatering unit(2)
It further include moisture on-line detector(2.5), the moisture on-line detector(2.5)It is installed on the stripper plate of dewatering unit
(2.3)Or support plate(2.2)On.
3. sewage sludge minimizing dewatering according to claim 2, it is characterised in that:The moisture on-line detection
Instrument uses the moisture of high frequency capacitance field microwave measurement sludge cake thickness direction, and can detect sludge cake diameter side as needed
To moisture content, detect moisture moisture content be entire moisture percentage in sewage sludge average value.
4. sewage sludge minimizing dewatering according to claim 1, it is characterised in that:The two-way cylinder(1)
It is connected with booster(1.2)And solenoid directional control valve(1.3), pass through solenoid directional control valve(1.3)To realize two-way cylinder(1)Pressure
Oil commutation, and then realize charging dehydration and the conversion of press dewatering of the dewatering unit of left and right two.
5. sewage sludge minimizing dewatering according to claim 1, it is characterised in that:The dewatering unit also wraps
Include sealing plate(2.6), the stripper plate(2.3)With support plate(2.2)On offer multiple fluid channels, stripper plate(2.3), support
Plate(2.2)With dehydration cylinder(2.1)Form a press filtration chamber, stripper plate(2.3)With support plate(2.2)Medial surface wrap up respectively
There is filter cloth(2.7), lateral surface is connected with sealing plate(2.6), the sealing plate(2.6)Lower end is connected with drainpipe(2.8).
6. sewage sludge minimizing dewatering according to claim 1, it is characterised in that:Described opens knob soon(6)
It is enclosed including commutation(6.1), resetting spring(6.2)With limit jacking block(6.3), the commutation circle(6.1)Mounted on dehydration cylinder
(2.1)On, and it is located at support plate(2.2)Outside, the resetting spring(6.2)With limit jacking block(6.3)Correspond peace
Loaded on dehydration cylinder(2.1)Outer wall on, commutation circle(6.1)Inner wall be equipped with narrow diameter section and wide path, the narrow diameter
Section and wide path are alternately distributed, each pair of resetting spring(6.2)With limit jacking block(6.3)Combination correspond to corresponding narrow diameter section and width
Diameter section.
7. sewage sludge minimizing dewatering according to claim 6, it is characterised in that:The commutation circle(6.1)On
Open up it is fluted, dehydration cylinder(2.1)It is equipped with the outward flange with fit depressions(2.12), commutation, which is enclosed, passes through groove installation
In the outward flange of dehydration cylinder(2.12)On.
8. sewage sludge minimizing dewatering according to claim 6, it is characterised in that:The alternatively distributed narrow diameter
Section and wide path are rendered as curve, constitute cam line style.
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