CN105800900A - Efficient and deep reduction treatment method for sewage sludge - Google Patents
Efficient and deep reduction treatment method for sewage sludge Download PDFInfo
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- CN105800900A CN105800900A CN201610161223.5A CN201610161223A CN105800900A CN 105800900 A CN105800900 A CN 105800900A CN 201610161223 A CN201610161223 A CN 201610161223A CN 105800900 A CN105800900 A CN 105800900A
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- dehydration
- cylinder
- gripper shoe
- soon
- sewage sludge
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
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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 an efficient and deep reduction treatment method for sewage sludge. The method is based on a reduction treatment device, the reduction treatment device comprises at least one dehydration module, each dehydration module comprises a bidirectional oil cylinder (1) and two symmetric dehydration units (2), and each dehydration unit (2) comprises a dehydration barrel (2.1), a supporting plate (2.2) and an extruding plate (2.3). The supporting plates (2.2) are located on the outer sides of the dehydration barrels (2.1), the extruding plates (2.3) are located on the inner sides of the dehydration barrels (2.1), and feeding ports (2.4) are formed in the dehydration barrels (2.1). Each bidirectional oil cylinder (1) is provided with two piston rods (1.1) which are connected with the extruding plates of two corresponding dehydration units (2) respectively. According to the method, feeding dehydration and squeezing dehydration are carried out at the same time, so that work efficiency is improved; meanwhile, the pressure of fed materials is ingeniously utilized for dehydration in the squeezing dehydration process, and therefore the power use effect is improved.
Description
Technical field
The present invention relates to sewage sludge process field, specifically a kind of efficient depth minus quantizing method of sewage sludge.
Background technology
Mud is the product after sewage disposal, the a large amount of mud produced after current sewage disposal need to process further, and dehydration is the important step of Treatment of Sludge, its objective is to remove most of moisture in mud, solids level is made to be enriched with, sludge volume being greatly decreased to save the cost of Treatment of Sludge, improve sludge calorific value and save the energy, minimizing and follow-up disposal for mud are significant.Mechanical dehydration is that mud is carried out deep dehydration moisture content generally can be made to reach 80%-60% by dewatering type most effective, that energy consumption is minimum, currently employed conditioning and mechanical means.
Mechanical dehydration mode and equipment mainly have belt filtering means dehydration, centrifuge dehydration, filter press dehydration three major types.For municipal sludge, the filter cake moisture content after band filter, folded spiral shell dewaterer, centrifuge dewatering is about 75%-80%, and the moisture percentage in sewage sludge of barrier film filter press dehydration is typically in about 60%.
Supertension elasticity squeezer is that a kind of pressure is bigger, filtering equipment in hgher efficiency and solid-liquid separating equipment, whole process is broadly divided into charging--elastic squeezing--connecing liquid--Four processes such as discharging.This equipment pressure is directly from the pressure of hydraulic jack, and for direct squeezing, it is 1.0 ~ 1.5h that squeeze pressure can reach the mono-batch of working cycle of 5-7MPa, and work efficiency is 3-4 times of diaphragm filter press, and dehydrated sludge moisture content can reach about 50%.But there is the problems such as energy consumption is big, equipment cost is high, the squeezing spring frequent replacing of needs.
From the above, can by near for moisture percentage in sewage sludge less than 60% barrier film filter press and supertension elasticity squeezer, its workflow is all charging in first cavity, then squeeze again, charging and squeezing successively carry out, and need monolithic or arm-tie in batches when arm-tie, cause that the working cycle is long, work efficiency is not high, so that one working cycle of barrier film sheet frame squeezer needs 2-3 hour.Additionally, moisture content after sludge dewatering is usually rule of thumb to be determined, is extremely difficult to the moisture content of an accurate moisture content and target, and predictability is poor, certain impact is brought, it is difficult to realize low cost, high efficiency sludge reduction processes to the follow-up use of mud.
Summary of the invention
In view of this, the present invention is directed to above-mentioned prior art exist energy consumption big, cost is high, inefficient technical problem, energy consumption is little, efficiency is high to provide one, and the efficient depth minus quantizing method of sewage sludge that cost is low, and can accurately by Treatment of Sludge to target moisture content.
The technical solution of the present invention is, the efficient depth minus quantizing method of sewage sludge of a kind of following steps is provided, device is processed based on minimizing, described minimizing processes device and includes at least one dehydration module, described dehydration module includes two-way cylinder and two symmetrically arranged dewatering units, described each dewatering unit all includes dehydration cylinder, gripper shoe and stripper plate, described gripper shoe is positioned at the outside of dehydration cylinder, described stripper plate is positioned at the inner side of dehydration cylinder, is provided with charging aperture on described dehydration cylinder；Described two-way cylinder is provided with two piston rods, and two described piston rods are connected with the stripper plate of two dewatering units respectively；
In two symmetrically arranged dewatering units, one of them sewage sludge charging dehydration, another dewatering unit then extrusion dehydration, two-way cylinder is exerted a force by the dewatering unit of charging dehydration by its stripper plate, and promotes the stripper plate of the dewatering unit of extrusion dehydration；In above process, two-way cylinder, then according to force direction, passes into toward corresponding oil pocket or releases hydraulic oil.
Adopt above structure, the present invention is compared with prior art, have the advantage that the quantity of the dehydration module being made up of two symmetrical dewatering units is set by the size of required sewage sludge treating capacity, and increase and decrease according to practical situation, two dewatering units in each dehydration module are arranged symmetrically in the both sides of two-way cylinder, it is connected with two piston rods of two-way cylinder respectively, dewatering unit can be provided the pressure of 5-7MPa by two-way cylinder, put on stripper plate, by stripper plate, the sewage sludge entering dehydration cylinder is extruded, depth minus to realize dehydration and mud quantifies；One charging of two dewatering units, another then stops charging, when carrying out charging dehydration when one of them dewatering unit charging under feed pressure effect, the feed pressure of this dewatering unit acts on another dewatering unit also by two-way cylinder equal pressure, the dewatering unit that another has stopped charging carries out press dewatering, namely in the same time, two dewatering units are carried out charging dehydration and press dewatering respectively, solve current sewage-treatment plant charging dehydration and press dewatering is divided into the problem that two stages carry out, improve work efficiency, simultaneously, also the pressure utilizing charging during press dewatering cleverly carries out dehydration, improve power result of use, reduce product energy consumption.
As improvement, described dewatering unit also includes moisture on-line detector, and described moisture on-line detector is installed in stripper plate or the gripper shoe of dewatering unit.Adopt sludge water content on-line detector that the moisture content of mud is measured in real time, the moisture content of grasp mud that can be real-time, and the moisture content of outlet mud accurately can be controlled, namely mud is without reaching required moisture content, then can be realized by prolongation squeezing time and increasing squeeze pressure, it is possible to accurately reach target moisture content.
As improvement, described moisture on-line detector adopts the moisture of high frequency capacitance field microwave measurement sludge cake thickness direction, and can detect the diametric moisture content of sludge cake as required, the meansigma methods that moisture content is whole moisture percentage in sewage sludge of detection moisture.Efficiently solve current moisture percentage in sewage sludge measurement and take the inaccurate problem that several point brings, the moisture content of mud can be measured in real time.
As improvement, described two-way cylinder be connected to supercharger and solenoid directional control valve is connected, the pressure oil commutation of two-way cylinder can be realized by solenoid directional control valve, and then realize the charging dehydration of two dewatering units in left and right and the conversion of press dewatering.The high-pressure compressing to mud can be realized by supercharger effect, reduce moisture percentage in sewage sludge further.
As improvement, described dewatering unit also includes shrouding, described stripper plate and gripper shoe offer multiple fluid passage, stripper plate, gripper shoe and dehydration tube body form a filter pressing chamber, the medial surface of stripper plate and gripper shoe is enclosed with filter cloth respectively, lateral surface is connected to shrouding, and described shrouding lower end is connected to drain pipe.
As improvement, described dehydration module is multiple, the plurality of dehydration module is arranged side by side, described minimizing processes device and also includes two gripper shoe driving mechanisms, two described gripper shoe driving mechanisms lay respectively at the both sides of multiple dehydration module, described gripper shoe driving mechanism includes gripper shoe connecting rod, gripper shoe push-and-pull mobile jib and push cylinder, the gripper shoe of one end of described gripper shoe connecting rod and the plurality of dehydration module side connects one to one, the other end of described gripper shoe connecting rod is connected on gripper shoe push-and-pull mobile jib, the outfan of described push cylinder is connected with push-and-pull mobile jib.It is capable of the opening and closing of gripper shoe by gripper shoe driving mechanism, and then realizes the discharging of corresponding dewatering unit easily.
As improvement, it is respectively arranged with fast opening mechanism in the both sides of multiple dehydration modules, described fast opening mechanism includes opening soon knob, opens connecting rod soon, opens mobile jib and open driving oil cylinder soon soon, connect one to one outside the described dewatering unit opening knob and corresponding side soon, described one end opening connecting rod soon is connected to opens on knob accordingly soon, the other end is connected to be opened on mobile jib soon, described drive the outfan that drives oil cylinder soon and opens mobile jib soon and be connected.
As improvement, described knob of opening soon includes commutation circle, back-moving spring and spacing jacking block, described commutation circle is arranged on dehydration cylinder, and it is positioned at the outside of gripper shoe, described back-moving spring and spacing jacking block one_to_one corresponding are installed on the outer wall of dehydration cylinder, the inwall of described commutation circle is provided with narrow footpath section and wide path, and described narrow footpath section and wide path are alternately distributed, every pair of back-moving spring corresponding narrow footpath section corresponding to the combination of spacing jacking block and wide path.When opening knob locking soon, then under the effect of back-moving spring, corresponding spacing jacking block props up the narrow footpath section of commutation circle, change to circle opening driving hydraulic oil cylinder driving backspin soon, so that spacing jacking block enters wide path, even if under the action of the spring, without the inwall propping up commutation circle, thus realizing opening soon.
As improvement, described commutation circle offering groove, be provided with the outward flange with fit depressions on dehydration cylinder, commutation circle is arranged on the outward flange of dehydration cylinder by groove.
As improvement, described alternatively distributed narrow footpath section and wide path are rendered as curve, constitute cam line style.This cam line style ensures that the motion of spacing jacking block is without impact, for compliant motion, and makes the stuck phenomenon that the motion of limiting plate do not have.
Accompanying drawing explanation
Fig. 1 is the structural representation of the efficient depth minus quantification treatment device of sewage sludge；
Fig. 2 is fast opening mechanism schematic diagram；
Fig. 3 is the profile of the fast opening mechanism of Fig. 2；
Fig. 4 is the corresponding FB(flow block) of the present invention.
As shown in the figure, 1, two-way cylinder, 1.1, piston rod, 1.2, supercharger, 1.3, solenoid directional control valve, 2, dewatering unit, 2.1, dehydration cylinder, 2.12, outward flange, 2.2, gripper shoe, 2.3, stripper plate, 2.4, charging aperture, 2.5, moisture on-line detector, 2.6, shrouding, 2.7, filter cloth, 2.8, drain pipe, 3, gripper shoe connecting rod, 4, gripper shoe push-and-pull mobile jib, 5, push cylinder, 6, open knob soon, 6.1, commutation circle, 6.2, back-moving spring, 6.3, spacing jacking block, 7, open connecting rod soon, 8, open mobile jib soon, 9, open driving oil cylinder soon, 10, controller, 11, material conveying mechanism.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
The present invention contains any replacement, amendment, equivalent method and scheme made in the spirit and scope of the present invention.Understand thoroughly to make the public that the present invention to be had, present invention below preferred embodiment describes in detail concrete details, and does not have the description of these details can also understand the present invention completely for a person skilled in the art.Additionally, needs in order to illustrate in the accompanying drawing of the present invention, accurately it be drawn to scale completely, be explained at this.Wherein, describing about " interior ", " outward ", "left", "right" etc. and be comparatively speaking, being only description needs and introduces these terms, is not intended that limitations on the claims.It addition, the statement about " device " and " mechanism " can phase trans-substitution, for instance, fast opening mechanism is alternatively referred to as quick-opening device.
As shown in Figure 1, illustrate a kind of efficient depth minus quantification treatment device of sewage sludge, including at least one dehydration module, described dehydration module includes two-way cylinder 1 and two symmetrically arranged dewatering units 2, described each dewatering unit 2 all includes dehydration cylinder 2.1, gripper shoe 2.2 and stripper plate 2.3, described gripper shoe 2.2 is positioned at the outside of dehydration cylinder 2.1, and described stripper plate 2.3 is positioned at the inner side of dehydration cylinder 2.1, is provided with charging aperture 2.4 on described dehydration cylinder 2.1；Described two-way cylinder 1 is provided with two piston rods 1.1, and two described piston rods 1.1 are connected with the stripper plate 2.3 of two dewatering units 2 respectively.This device is mainly sludge deep dehydrator, dehydration is divided into two steps, the first step is the feed pressure dehydration by mud, dewatering pressure is 0.6-0.8MPa, second step is that the pressure by high-voltage oil cylinder carries out press dewatering, squeeze pressure is 5-7MPa, after completing minimizing process, by material conveying mechanism 11 by mud 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, namely compared with feed pressure.
Based on the efficient depth minus quantification treatment device of above-mentioned sewage sludge, there is following minimizing processing method: in two symmetrically arranged dewatering units, one of them sewage sludge charging dehydration, another dewatering unit then extrusion dehydration, two-way cylinder is exerted a force by the dewatering unit of charging dehydration by its stripper plate, and promotes the stripper plate of the dewatering unit of extrusion dehydration；In above process, two-way cylinder, then according to force direction, passes into toward corresponding oil pocket or releases hydraulic oil.
Described dewatering unit 2 also includes moisture on-line detector 2.5, and described moisture on-line detector 2.5 is installed in stripper plate 2.3 or the gripper shoe 2.2 of dewatering unit.Adopt sludge water content on-line detector that the moisture content of mud is measured in real time, the moisture content of grasp mud that can be real-time, and the moisture content of outlet mud accurately can be controlled, namely mud is without reaching required moisture content, then can be realized by prolongation squeezing time and increasing squeeze pressure, it is possible to accurately reach target moisture content.Described moisture on-line detector 2.5 adopts the moisture of high frequency capacitance field microwave measurement sludge cake thickness direction, and can detect the diametric moisture content of sludge cake as required, the meansigma methods that moisture content is whole moisture percentage in sewage sludge of detection moisture.
Described two-way cylinder 1 be connected to supercharger 1.2 and solenoid directional control valve 1.3 is connected, the pressure oil commutation of two-way cylinder 1 can be realized by solenoid directional control valve 1.3, and then realize the charging dehydration of two dewatering units in left and right and the conversion of press dewatering.The high-pressure compressing to mud can be realized by supercharger effect, reduce moisture percentage in sewage sludge further.
Described dewatering unit also includes shrouding 2.6, described stripper plate 2.3 and gripper shoe 2.2 offer multiple fluid passage, stripper plate 2.3, gripper shoe 2.2 form a filter pressing chamber with dehydration cylinder 2.1, the medial surface of stripper plate 2.3 and gripper shoe 2.2 is enclosed with filter cloth 2.7 respectively, lateral surface is connected to shrouding 2.6, and described shrouding 2.6 lower end is connected to drain pipe 2.8.
The quantity of the dehydration module being made up of two symmetrical dewatering units is set by the size of required sewage sludge treating capacity, and increases and decreases according to practical situation, and two dewatering units in each dehydration module are arranged symmetrically in the both sides of two-way cylinder.In actually used, being generally adopted multiple or many groups dehydration module, the plurality of dehydration module is arranged side by side, and described is arranged side by side as spatially side by side, but not only refers in same level position.Actually used situation according to multiple dehydration modules, the present invention designs the mechanism of multiple dehydration module collaborative work, for instance, gripper shoe driving mechanism, fast opening mechanism, etc..Gripper shoe driving mechanism and fast opening mechanism are all for the purpose of the unilateral synchronous interaction realizing multiple dehydration module so that multiple dehydration modules can collaborative work, raising efficiency.
Shown in Fig. 1, described dehydration module is three, described three dehydration modules are arranged side by side, described minimizing processes device and also includes two gripper shoe driving mechanisms, two described gripper shoe driving mechanisms lay respectively at the both sides of multiple dehydration module, described gripper shoe driving mechanism includes gripper shoe connecting rod 3, gripper shoe push-and-pull mobile jib 4 and push cylinder 5, the gripper shoe 2.2 of one end of described gripper shoe connecting rod 3 and the plurality of dehydration module side connects one to one, the other end of described gripper shoe connecting rod 3 is connected on gripper shoe push-and-pull mobile jib 4, the outfan of described push cylinder 5 is connected with push-and-pull mobile jib 4.It is capable of the opening and closing of gripper shoe by gripper shoe driving mechanism, and then realizes the discharging of corresponding dewatering unit easily.
It is respectively arranged with fast opening mechanism, as in figure 2 it is shown, illustrate the concrete structure of fast opening mechanism in the both sides of multiple dehydration modules.Described fast opening mechanism includes opening soon knob 6, opens connecting rod 7 soon, opens mobile jib 8 and open driving oil cylinder 9 soon soon, connect one to one outside the described dewatering unit opening knob 6 and corresponding side soon, described one end opening connecting rod 7 soon is connected to opens on knob 6 accordingly soon, the other end is connected to be opened on mobile jib 8 soon, and described opening soon drives the outfan of oil cylinder 9 to be connected with opening mobile jib 8 soon." inner side " of the present embodiment indication is near two-way cylinder 1 side, otherwise, " outside " then refers to the side away from two-way cylinder 1.
Described knob 6 of opening soon includes commutation circle 6.1, back-moving spring 6.2 and spacing jacking block 6.3, described commutation circle 6.1 is arranged on dehydration cylinder 2.1, and it is positioned at the outside of gripper shoe 2.2, described back-moving spring 6.2 and spacing jacking block 6.3 one_to_one corresponding are installed on the outer wall of dehydration cylinder 2.1, the inwall of described commutation circle 6.1 is provided with narrow footpath section and wide path, described narrow footpath section and wide path are alternately distributed, every pair of back-moving spring 6.2 corresponding narrow footpath section corresponding to the combination of spacing jacking block 6.3 and wide path.When opening knob locking soon, then under the effect of back-moving spring, corresponding spacing jacking block props up the narrow footpath section of commutation circle, change to circle opening driving hydraulic oil cylinder driving backspin soon, so that spacing jacking block enters wide path, even if under the action of the spring, without the inwall propping up commutation circle, thus realizing opening soon.
Offering groove on described commutation circle 6.1, be provided with the outward flange 2.12 with fit depressions on dehydration cylinder 2.1, commutation circle is arranged on the outward flange of dehydration cylinder by groove.
Described alternatively distributed narrow footpath section and wide path are rendered as curve, constitute cam line style.This cam line style ensures that the motion of spacing jacking block is without impact, for compliant motion, and makes the stuck phenomenon that the motion of limiting plate do not have.
As it is shown on figure 3, illustrate the profile of fast opening mechanism, it is intended that the installation matching relationship of fast opening mechanism and dehydration cylinder is described.In figure known, back-moving spring 6.2 and spacing jacking block 6.3 are arranged on the outer wall of the external port of dehydration cylinder 2.1 radially, and be provided with and position telescopic hole accordingly, described back-moving spring 6.2 is sheathed on bottom spacing jacking block 6.3, boss for spring force is set in the middle part of spacing jacking block 6.3, may act as the effect of spring base.The location telescopic hole that spacing jacking block 6.3 may pass through on dehydration cylinder 2.1 moves back and forth.Although back-moving spring 6.2 and spacing jacking block 6.3 are arranged on dehydration cylinder 2.1, but the present embodiment using back-moving spring 6.2 and spacing jacking block 6.3 as the part opening knob 6 soon.Opening connecting rod 7 soon to be connected with opening mobile jib 8 soon with commutation circle 6.1 respectively by hinge, each mobile jib 8 of opening soon is opened soon with one and is driven oil cylinder 9 and multiple connecting rod 8 of opening soon to be connected.
Electrical features involved by the present embodiment can pass through unified controller 10 and be controlled, and namely described controller 10 and moisture on-line detector 2.5, solenoid directional control valve 1.3, push cylinder 5, opens driving oil cylinder 9 soon and is electrically connected；Arranging feed pipe valve at the charging aperture of each dewatering unit to connect simultaneously, be also electrically connected with controller 10, the described charging aperture on each dewatering unit is provided with feed pipe, and the feed pipe total with is connected.
The operation principle of this device is as follows:
nullWhen work starts，Push cylinder drives gripper shoe to move to certain position，Fast opening mechanism closes spacing jacking block，Gripper shoe is fixed on the lateral ends of a position dehydration cylinder，Gripper shoe and stripper plate form a filter pressing chamber，The sewage sludge of moisture content 90%-99% simultaneously enters two-way cylinder wherein side (such as left side) all of dewatering unit by screw pump or membrane pump conveying，Now the valve of left side charging aperture is opened，Right side charging aperture is closed，Mud enters，Discharge in the drain pipe of shrouding is entered into by the fluid passage of stripper plate and gripper shoe through filter cloth moisture，And sludge retention is at filter pressing intracavity，Along with the sewage sludge entered gets more and more，The mud of filter pressing intracavity also gets more and more，This stage is charging dehydration，Dewatering pressure is the operating pressure of screw pump or membrane pump，About 0.6-0.8MPa.
nullOn the other hand，The left hand piston bar of two-way cylinder is also applied the pressure of 0.6-0.8MPa by feed pressure，Now two-way cylinder does not actively pressurize，For naturalness，This pressure is applied on the stripper plate on right side by piston and the right hand piston bar of high-voltage oil cylinder，Thus realizing the low pressure press dewatering to mud，Right side mud is compressed，Left and right piston rod、The end motion to the right simultaneously of the stripper plate of left and right dewatering unit，The filter pressing cavity space in left side is gradually increased，Enter mud amount also to increase further，Dehydration for a kind of variable cavity，It is gradually increased along with mud amount is entered in left side，Mud after dehydration fills with the filter pressing chamber of left end，The mud on right side squeezes through the pressure of long 0.6-0.8MPa，Moisture is difficult to be extruded again，Now，The left chamber of two-way cylinder passes into high pressure oil pressure，The squeeze pressure making right dewatering unit reaches 5-7MPa，The further dehydration under high-pressure compressing of right dewatering unit is further compressed，This stage is the high-pressure compressing water smoking，Left and right piston rod、The stripper plate of left and right dewatering unit continues to move to the right，The filter pressing chamber in left side becomes big further，Sewage sludge can enter mud pipe by left side and continue into the left side further dehydration of dewatering unit，Moisture is discharged by the drain pipe of the left and right sides.Now, sludge water content on-line detector detects the moisture content of right side mud in real time, when mud reaches required moisture content, controller is signaled to quick-opening device, and quick-opening device is opened, and controller is simultaneously emitted by signal to push cylinder, gripper shoe is pulled open by push cylinder, simultaneously bi-directionally oil cylinder pushing right hand piston bar, pushes out mud, and mud drops to and transfers out on device for transporting objects.After mud has been carried, gripper shoe is back on dehydration cylinder by right side push cylinder, and quick-opening device is closed simultaneously.
Right side dewatering unit completes charging dehydration, preliminary press dewatering and high-pressure compressing dehydration, and left side has dewatering unit to only complete charging dehydration.nullNow，Right side is entered mud tube valve and is opened，The mud tube valve that enters in left side is closed，Sewage sludge enters into right side dewatering unit，Moisture passes through filter cloth and stripper plate、Fluid passage in gripper shoe enters into shrouding and drain pipe is discharged，Mud is then trapped within filter pressing intracavity，Left side is carried out low pressure press dewatering through the mud of early stage charging dehydration by the piston rod of high-voltage oil cylinder by the feed pressure on right side，Left side mud is compressed，The left and right piston rod of high-voltage oil cylinder、The stripper plate of left and right dewatering unit moves to the left，Carrying out along with dehydration，Right side cavity is full of dewatered sludge，Now，Controller is signaled to solenoid directional control valve，Hydraulic oil enters into the left side cavity of high-voltage oil cylinder，Left side mud is carried out high-pressure compressing dehydration，Mud is further dehydrated and compresses，The left and right piston rod of two-way cylinder、The stripper plate of left and right dewatering unit continues to move to the left，Now the filter pressing cavity on right side increases further，Sewage sludge can go successively to.When the moisture content that sludge water content on-line detector detects left side mud in real time reaches requirement, controller is signaled to fast transmitting apparatus and the push cylinder in left side, quick-opening device is opened, gripper shoe is pulled open by push cylinder, stripper plate promotes mud, to taking exercises, mud is released dehydration cylinder, and mud drops to sludge conveyor output.One cycle completes, and circulates and so forth.
Fast opening mechanism operation principle is, soon open driving oil cylinder pushing open soon mobile jib, soon open connecting rod drive commutation circle rotate, cam line style within the while that commutation circle rotating promotes spacing jacking block to move downward, realize spacing, when opening oil cylinder adverse movement soon, driving commutation circle to rotate backward, now, spacing jacking block is opened under the action of the spring.
Charging dehydration and press dewatering are synchronously performed, and the pressure making full use of charging carries out preliminary press dewatering, and efficiency is high, save energy consumption；The moisture content of mud being detected in real time, can accurately control the moisture content of mud extraction, the follow-up disposal for mud brings benefit；Pull open gripper shoe mud is carried out discharging to be synchronously performed, reduce the current mud pulling plate unloading time；This device is the modular construction of a kind of normal formula, can carry out equipment restructuring easily according to the size for the treatment of capacity.
It is described as far as preferred embodiment of the present invention above, but is not to be construed as limitations on claims.The present invention is not only limited to above example, and its concrete structure allows to change.In a word, all various changes made in the protection domain of independent claims of the present invention are all in protection scope of the present invention.
Claims (9)
1. the efficient depth minus quantizing method of sewage sludge, device is processed based on minimizing, described minimizing processes device and includes at least one dehydration module, it is characterized in that: described dehydration module includes two-way cylinder (1) and two symmetrically arranged dewatering units (2), described each dewatering unit (2) all includes dehydration cylinder (2.1), gripper shoe (2.2) and stripper plate (2.3), described gripper shoe (2.2) is positioned at the outside of dehydration cylinder (2.1), described stripper plate (2.3) is positioned at the inner side of dehydration cylinder (2.1), described dehydration cylinder (2.1) is provided with charging aperture (2.4)；Described two-way cylinder (1) is provided with two piston rods (1.1), and two described piston rods (1.1) are connected with the stripper plate (2.3) of two dewatering units (2) respectively；
In two symmetrically arranged dewatering units, one of them sewage sludge charging dehydration, another dewatering unit then extrusion dehydration, two-way cylinder is exerted a force by the dewatering unit of charging dehydration by its stripper plate, and promotes the stripper plate of the dewatering unit of extrusion dehydration；In above process, two-way cylinder, then according to force direction, passes into toward corresponding oil pocket or releases hydraulic oil.
2. the efficient depth minus quantizing method of sewage sludge according to claim 1, it is characterized in that: described dewatering unit (2) also includes moisture on-line detector (2.5), and described moisture on-line detector (2.5) is installed in stripper plate (2.3) or the gripper shoe (2.2) of dewatering unit；Described moisture on-line detector adopts the moisture of high frequency capacitance field microwave measurement sludge cake thickness direction, and can detect the diametric moisture content of sludge cake as required, the meansigma methods that moisture content is whole moisture percentage in sewage sludge of detection moisture.
3. the efficient depth minus quantizing method of sewage sludge according to claim 1, it is characterized in that: be connected to supercharger (1.2) and the solenoid directional control valve (1.3) of described two-way cylinder (1) are connected, commutated with the pressure oil realizing two-way cylinder (1) by solenoid directional control valve (1.3), and then realize the charging dehydration of two dewatering units in left and right and the conversion of press dewatering.
4. the efficient depth minus quantizing method of sewage sludge according to claim 1, it is characterized in that: described dewatering unit also includes shrouding (2.6), described stripper plate (2.3) and gripper shoe (2.2) offer multiple fluid passage, stripper plate (2.3), gripper shoe (2.2) form a filter pressing chamber with dehydration cylinder (2.1), the medial surface of stripper plate (2.3) and gripper shoe (2.2) is enclosed with filter cloth (2.7) respectively, lateral surface is connected to shrouding (2.6), and described shrouding (2.6) lower end is connected to drain pipe (2.8).
5. the efficient depth minus quantizing method of sewage sludge according to claim 1 and 2, it is characterized in that: described dehydration module is multiple, the plurality of dehydration module is arranged side by side, described minimizing processes device and also includes two gripper shoe driving mechanisms, two described gripper shoe driving mechanisms lay respectively at the both sides of multiple dehydration module, described gripper shoe driving mechanism includes gripper shoe connecting rod (3), gripper shoe push-and-pull mobile jib (4) and push cylinder (5), the gripper shoe (2.2) of one end of described gripper shoe connecting rod (3) and the plurality of dehydration module side connects one to one, the other end of described gripper shoe connecting rod (3) is connected in gripper shoe push-and-pull mobile jib (4), the outfan of described push cylinder (5) is connected with push-and-pull mobile jib (4).
6. the efficient depth minus quantizing method of sewage sludge according to claim 5, it is characterized in that: be respectively arranged with fast opening mechanism in the both sides of multiple dehydration modules, described fast opening mechanism includes opening knob (6) soon, open connecting rod (7) soon, open mobile jib (8) soon and open driving oil cylinder (9) soon, connect one to one outside the described dewatering unit opening knob (6) and corresponding side soon, described one end opening connecting rod (7) soon is connected to opens on knob (6) accordingly soon, the other end is connected to be opened on mobile jib (8) soon, described opening soon drives the outfan of oil cylinder (9) to be connected with opening mobile jib (8) soon.
7. the efficient depth minus quantizing method of sewage sludge according to claim 6, it is characterized in that: described knob (6) of opening soon includes commutation circle (6.1), back-moving spring (6.2) and spacing jacking block (6.3), described commutation circle (6.1) is arranged on dehydration cylinder (2.1), and it is positioned at the outside of gripper shoe (2.2), described back-moving spring (6.2) and spacing jacking block (6.3) one_to_one corresponding are installed on the outer wall of dehydration cylinder (2.1), the inwall of described commutation circle (6.1) is provided with narrow footpath section and wide path, described narrow footpath section and wide path are alternately distributed, every pair of back-moving spring (6.2) corresponding narrow footpath section corresponding to the combination of spacing jacking block (6.3) and wide path.
8. the efficient depth minus quantizing method of sewage sludge according to claim 7, it is characterized in that: described commutation circle (6.1) offers groove, being provided with the outward flange (2.12) with fit depressions on dehydration cylinder (2.1), commutation circle is arranged on the outward flange (2.12) of dehydration cylinder by groove.
9. the efficient depth minus quantizing method of sewage sludge according to claim 7, it is characterized in that: described alternatively distributed narrow footpath section and wide path are rendered as curve, constitute cam line style, open driving oil cylinder (9) promotion soon and open mobile jib (8) soon, opening connecting rod (7) soon drives commutation circle (6.1) to rotate, cam line style within the while that commutation circle (6.1) rotating promotes spacing jacking block (6.3) to move downward, realize spacing, when opening driving oil cylinder (9) adverse movement soon, commutation circle (6.1) is driven to rotate backward, now, spacing jacking block (6.3) is opened under back-moving spring (6.2) acts on.
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