CN112321125B - High-pressure filtering mechanism for filter press - Google Patents
High-pressure filtering mechanism for filter press Download PDFInfo
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- CN112321125B CN112321125B CN202011391146.5A CN202011391146A CN112321125B CN 112321125 B CN112321125 B CN 112321125B CN 202011391146 A CN202011391146 A CN 202011391146A CN 112321125 B CN112321125 B CN 112321125B
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- filtering
- dewatering
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- 238000001914 filtration Methods 0.000 title claims abstract description 78
- 230000007246 mechanism Effects 0.000 title claims abstract description 49
- 239000010802 sludge Substances 0.000 claims abstract description 62
- 238000001125 extrusion Methods 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000018044 dehydration Effects 0.000 abstract description 31
- 238000006297 dehydration reaction Methods 0.000 abstract description 31
- 238000003825 pressing Methods 0.000 abstract description 13
- 230000007797 corrosion Effects 0.000 abstract description 8
- 238000005260 corrosion Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 208000005156 Dehydration Diseases 0.000 description 28
- 239000004744 fabric Substances 0.000 description 12
- 230000006835 compression Effects 0.000 description 11
- 238000007906 compression Methods 0.000 description 11
- 239000003921 oil Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000007664 blowing Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000012065 filter cake Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910001339 C alloy Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention provides a high-pressure filtering mechanism for a filter press, and relates to the field of filter pressing equipment. The utility model provides a high pressure filter mechanism for pressure filter, includes the filter unit, and the filter unit includes a plurality of filter that laminate in proper order, is provided with the dehydration mechanism that is used for extrudeing mud in the filter. According to the invention, the dewatering efficiency of sludge can be improved by additionally arranging the dewatering mechanism in the filter plate, the primary filtration is carried out through the filter plate, and the secondary filtration is carried out through the dewatering mechanism in the filter plate, so that the dewatering amount of the sludge is improved, and the secondary deep dewatering pressure of the sludge is high and can reach 3.5MPa per square centimeter at most; the device solves the problem of limitation of the deep dehydration pressure requirement and the secondary squeezing stroke of the diaphragm filter plate sludge; solves the problem of limited corrosion and fracture of the spring on the spring metal filter plate and secondary squeezing stroke; the design ensures that the filtering unit has the multi-stage dehydration effect, can deeply dehydrate the sludge, improves the practical value and is convenient for large-scale popularization and use.
Description
Technical Field
The invention relates to the field of filter pressing equipment, in particular to a high-pressure filtering mechanism for a filter press.
Background
Sludge produced in the sewage treatment process has high water content, and fluid sludge with high water content is usually dehydrated by adopting a filter press. The filter press is used as an important solid-liquid separation device and mainly comprises a filter plate, a thrust plate, a compacting plate, an oil cylinder, a main beam and other parts. When the filter press works, the oil cylinder pushes the compression plate to move along the main beam, the filter plates between the thrust plate and the compression plate are compressed, the filter plates are compressed to form a filter chamber, materials are pumped into the filter chamber by high-pressure materials, liquid is discharged through filter cloth meshes and flow channels on the filter plates, and solid particles are left in the filter chamber to form a filter cake. After the filter plate is pulled open, the filter cake falls off the filter cloth under the action of gravity to the filter cake conveying equipment and is conveyed to a designated position, so that solid-liquid separation is realized.
The filter plate is a key device in the water treatment process, and plays a double role of bearing the filtering material layer for filtering and backwash water distribution in the filter tank. The quality of the filter plate is directly related to the long-term benefits of the filtered water quality, water quantity and operation of water plants and sewage plants.
The filter press products in the market at present adopt a diaphragm filter plate or a spring filter plate; the diaphragm filter plate is characterized in that the feeding pressure is high and can reach 1.2MPa per square centimeter, the diaphragm filter plate adopts a hydraulic large oil cylinder to seal a cavity, the diaphragm membrane technology is utilized to achieve secondary deep dehydration of sludge, the bearing pressure of the plate is limited due to the chemical component characteristics of the diaphragm filter plate, the maximum pressure is not more than 2.0MPa per square centimeter, the requirement of deep dehydration of sludge cannot be completely met, the filter plate is easy to damage due to repeated shrinkage under high pressure, the membrane damage is generally caused in 1 month, sometimes even in a few days, the whole filter plate needs to be replaced once the membrane is damaged, and the price is generally more expensive.
The spring filter plate is characterized in that a chamber is sealed by a spring, then the hydraulic large oil cylinder is used for achieving secondary deep dehydration of sludge, the secondary dehydration squeezing pressure of the sludge is high and can reach 3.0MPa per square centimeter, the spring filter plate has the defects that the spring is not corrosion-resistant, a spring fracture trace exists in 2-3 months, filter cloth is broken after the spring fracture, the pressure of the sealed chamber of the spring is uneven, and a material spraying phenomenon occurs when the feeding pressure exceeds 0.6 MPa.
Disclosure of Invention
The invention aims to provide a high-pressure filtering mechanism for a filter press, which can deeply dehydrate sludge.
Embodiments of the present invention are implemented as follows:
the embodiment of the application provides a high-pressure filtering mechanism for a filter press, which comprises a filtering unit, wherein the filtering unit comprises a plurality of filtering plates which are sequentially attached, and a dewatering mechanism for extruding sludge is arranged in the filtering plates.
In some embodiments of the present invention, the filter plate includes a fixing frame, a fixing plate and two filter cloths, the fixing plate is arranged in the fixing frame, the two filter cloths are respectively laid at the openings of the fixing frame facing the adjacent two sides of the filter plate, and the dehydrator frame is arranged on the fixing plate.
In some embodiments of the present invention, the dewatering mechanism includes a hydraulic cylinder and a squeeze plate, the hydraulic cylinder is mounted on the fixed plate, the head of the hydraulic cylinder faces any adjacent filter plate, and the squeeze plate is connected with the head of the hydraulic cylinder.
In some embodiments of the present invention, the plurality of hydraulic cylinders are distributed on the fixed plate, and shaft heads of the plurality of hydraulic cylinders are connected with a squeeze plate.
In some embodiments of the present invention, the fixing frame is provided with a through hole along a side wall thereof, and an oil inlet pipe connected with a plurality of hydraulic cylinders is arranged in the through hole in a penetrating manner.
In some embodiments of the present invention, the fixing plate is provided with a plurality of assembly notches matched with the hydraulic cylinders, and the hydraulic cylinders are installed in the assembly notches through flanges.
In some embodiments of the present invention, a sliding block is connected between the pressing plate and the fixing frame.
In some embodiments of the present invention, the cross section of the sliding block is L-shaped, and the bottom of the extrusion plate is erected in the notch of the sliding block.
In some embodiments of the present invention, the side walls of the fixing plate and the pressing plate facing the adjacent two sides of the filter plate are provided with water guide plates.
In some embodiments of the present invention, an access hole is formed on a side wall of the fixing frame.
Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects:
The embodiment of the invention provides a high-pressure filtering mechanism for a filter press, which comprises a filtering unit, wherein the filtering unit comprises a plurality of filtering plates which are sequentially attached, and a dewatering mechanism for extruding sludge is arranged in each filtering plate. The filter unit is erected on the filter press frame to realize filter pressing operation; the filtering unit comprises a plurality of mutually-attached filtering plates to form an extrusion state, and the filtering plates on two adjacent sides form an extrusion state of sludge by filling, so that the dewatering effect is realized; meanwhile, the dewatering mechanism additionally arranged in each filter plate can further squeeze and dewater the sludge, so that the sludge can be deeply dewatered, and the dewatering mechanism can dewater the sludge by larger extrusion force than the existing filter plates, so that the dewatering efficiency is greatly improved, and the dewatering operation of the whole mechanism is stronger; according to the invention, the dewatering efficiency of sludge can be improved by additionally arranging the dewatering mechanism in the filter plate, the sludge can be subjected to primary filtration through the filter plate, and secondary filtration is performed through the dewatering mechanism in the filter plate, so that the dewatering amount of the sludge is greatly improved, and the secondary deep dewatering pressure of the sludge is high and can reach 3.5MPa per square centimeter at most; the device solves the problems that a diaphragm filter plate is easy to damage, the sludge deep dehydration pressure requirement and the secondary squeezing stroke are limited; solves the problem of limited corrosion and fracture of the spring on the spring metal filter plate and secondary squeezing stroke; the design ensures that the filtering unit has the multi-stage dehydration effect, so that the sludge can be deeply dehydrated, the practical value is greatly improved, and the filtering unit is convenient for large-scale popularization and use.
When in actual use, the staff installs the filter unit on the compressor frame at first to communicate the feedwell, through the compression cavity that lets in the filter unit with the mud in the feedwell, carry out one-level compression dehydration, after the one-level dehydration finishes, the staff starts the dehydration mechanism and carries out the pressurization dehydration to the mud in the cavity and realize the second grade dehydration operation, starts the blowback mechanism of compressor after the dehydration finishes, blows back the higher mud medium blowing of the moisture content of filter unit into the pond of managing.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a filter unit according to an embodiment of the present invention;
FIG. 2 is a schematic view of the internal structure of a filter plate according to an embodiment of the present invention;
FIG. 3 is a schematic view of a first cross-sectional structure of a filter plate according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a second cross-sectional structure of a filter plate according to an embodiment of the present invention;
fig. 5 is a schematic side view of a filter plate according to an embodiment of the invention.
Icon: 1-a filter plate; 101-an access port; 2-fixing frames; 201-a fixed plate; 2011-hydraulic cylinder; 2012-pressing the plate; 2013-a flange; 202, filtering cloth; 203-a through hole; 2031-an oil inlet pipe; 3-a slider; 4-water guide plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which the product of the present invention is conventionally put when used, it is merely for convenience of describing the present invention and simplifying the description, and it does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
In the description of the embodiments of the present invention, "plurality" means at least 2.
In the description of the embodiments of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Examples
Referring to fig. 1 to 5, fig. 1 is a schematic diagram illustrating a filter unit according to an embodiment of the invention; fig. 2 is a schematic diagram showing the internal structure of a filter plate 1 according to an embodiment of the present invention; fig. 3 is a schematic view showing a first cross-sectional structure of a filter plate 1 according to an embodiment of the present invention; fig. 4 is a schematic diagram showing a second cross-sectional structure of a filter plate 1 according to an embodiment of the present invention; fig. 5 shows a schematic side view of a filter plate 1 according to an embodiment of the invention.
The embodiment of the invention provides a high-pressure filtering mechanism for a filter press, which comprises a filtering unit, wherein the filtering unit comprises a plurality of filtering plates 1 which are sequentially attached, and a dewatering mechanism for extruding sludge is arranged in each filtering plate 1. The filter unit is erected on the filter press frame to realize filter pressing operation; the filtering unit comprises a plurality of mutually attached filtering plates 1 to form an extrusion state, and the filtering plates 1 on two adjacent sides form an extrusion state of sludge by filling, so that the dewatering effect is realized; meanwhile, the dewatering mechanism additionally arranged in each filter plate 1 can further squeeze and dewater the sludge, so that the sludge can be deeply dewatered, and the dewatering mechanism can dewater the sludge by larger extrusion force than the existing filter plates, so that the dewatering efficiency is greatly improved, and the dewatering operation of the whole mechanism is more powerful; according to the invention, the dewatering efficiency of sludge can be improved by additionally arranging the dewatering mechanism in the filter plate 1, the sludge can be subjected to primary filtration through the filter plate 1, and secondary filtration is performed through the dewatering mechanism in the filter plate 1, so that the dewatering amount of the sludge is greatly improved, and the secondary deep dewatering pressure of the sludge is high and can reach 3.5MPa per square centimeter; the device solves the problems that a diaphragm filter plate is easy to damage, the sludge deep dehydration pressure requirement and the secondary squeezing stroke are limited; solves the problem of limited corrosion and fracture of the spring on the spring metal filter plate and secondary squeezing stroke; the design ensures that the filtering unit has the multi-stage dehydration effect, so that the sludge can be deeply dehydrated, the practical value is greatly improved, and the filtering unit is convenient for large-scale popularization and use.
Sixteen filter plates 1 in this embodiment can improve the mud medium filtration volume of whole mechanism through setting up a plurality of filter plates 1, improve the filtration rate of whole equipment, and can improve the disposable filtration volume of mud, reduce filtration cost.
The fifty filter plates 1 in the above embodiment can improve the filtering capacity of the sludge medium of the whole mechanism by arranging a plurality of filter plates 1, improve the filtering rate of the whole equipment, improve the disposable filtering capacity of the sludge and reduce the filtering cost.
The number of the filter plates 1 in the embodiment is thirty-five, the filtering capacity of sludge media of the whole mechanism can be improved by arranging a plurality of filter plates 1, the filtering rate of whole equipment is improved, the disposable filtering capacity of sludge can be improved, and the filtering cost is reduced.
When in actual use, the staff installs the filter unit on the compressor frame at first to communicate the feedwell, through the compression cavity that lets in the filter unit with the mud in the feedwell, carry out one-level compression dehydration, after the one-level dehydration finishes, the staff starts the dehydration mechanism and carries out the pressurization dehydration to the mud in the cavity and realize the second grade dehydration operation, starts the blowback mechanism of compressor after the dehydration finishes, blows back the higher mud medium blowing of the moisture content of filter unit into the pond of managing.
In some embodiments of the present invention, as shown in fig. 2 and 3, the filter plate 1 includes a fixing frame 2, a fixing plate 201 and two filter cloths 202, the fixing plate 201 is erected in the fixing frame 2, the two filter cloths 202 are respectively laid at the openings of the fixing frame 2 facing the adjacent two side filter plates 1, and the dehydrator frame is arranged on the fixing plate 201.
The fixing frame 2 and the fixing plate 201 in the embodiment are both rectangular, and are made of aluminum alloy, and the aluminum alloy is an alloy with aluminum as a base and added with a certain amount of other alloying elements, is one of light metal materials, has low material cost, and can save a large amount of manufacturing cost for manufacturing the whole mechanism; besides the general characteristics of aluminum, the aluminum alloy has specific characteristics of some alloys due to the different types and the quantity of added alloying elements, the density of the aluminum alloy is 2.63-2.85 g/cm, the strength (sigma b is 110-650 MPa) is higher, the specific strength is close to that of high alloy steel, the specific rigidity exceeds that of steel, and the service lives of the fixing frame 2 and the fixing plate 201 are greatly prolonged due to the high-strength characteristics; the aluminum alloy filter plate has good casting performance, plastic processing performance, electric conductivity, heat conductivity, corrosion resistance and weldability, and the corrosion resistance can ensure that the sludge introduced into the filter plate 1 reduces the corrosion degree to the sludge, and the service life is prolonged; the filter cloth 202 can be paved on two sides of the fixing frame 2 to dewater sludge in the extrusion cavity, the sludge cannot leak from the filter cloth 202, the filter cloth 202 can only pass through water in the sludge, a sludge medium is introduced into the filter unit, the filter unit fills the cavity of the filter plate 1, the filter cloth 202 performs preliminary solid-liquid separation, after the cavity in the filter plate 1 is saturated, the feeding is stopped, and at the moment, a dewatering mechanism can be started to perform the squeezing treatment of the sludge medium, so that the secondary filtration is realized.
In the above embodiment, the fixing frame 2 and the fixing plate 201 are made of Q345B steel, and Q345 is a steel material. It is carbon alloy steel (c is less than 0.2%), and has good comprehensive performance, low-temperature performance, cold stamping performance, welding performance and machinability. The fixing frame 2 and the fixing plate 201 manufactured by the fixing frame are long in service life.
In some embodiments of the present invention, as shown in fig. 2 to 4, the dewatering mechanism includes a hydraulic cylinder 2011 and a squeeze plate 2012, the hydraulic cylinder 2011 is mounted on the fixed plate 201, the head of the hydraulic cylinder 2011 faces any adjacent filter plate 1, and the squeeze plate 2012 is connected to the head of the hydraulic cylinder 2011.
In this embodiment, the hydraulic cylinder 2011 can drive the extrusion plate 2012 to move, the moving direction is towards one side of the cavity filled with sludge medium, the sludge medium is first filtered through the filter cloth 202, after the cavity of the filter plate 1 is saturated, the feeding is stopped, at this time, the hydraulic cylinder 2011 is used for conveying hydraulic oil to the hydraulic cylinder 2011 to generate pressure, the piston rod of the hydraulic cylinder 2011 slowly extends forward and pushes the extrusion plate 2012, the extrusion plate 2012 moves towards one side of the adjacent filter plate 1, when the piston rod of the hydraulic cylinder 2011 begins to slowly extend, at this time, the space in the cavity of the filter plate 1 is gradually contracted, the volume of the sludge medium in the cavity is gradually compressed, the water contained in the filter plate is gradually squeezed to be dried, the purpose of secondary squeezing is achieved, after the squeezing is completed, the back-blowing mechanism of the compressor is started to blow the medium with higher water content in the filter unit back into the treatment tank through compressed air, recycling is achieved, waste of materials is reduced, and circulating operation can be achieved.
In some embodiments of the present invention, as shown in fig. 2 to 4, a plurality of hydraulic cylinders 2011 are provided, a plurality of hydraulic cylinders 2011 are distributed on the fixed plate 201 in an array, and shaft heads of the plurality of hydraulic cylinders 2011 are connected to a squeeze plate 2012. The extrusion force of the extrusion plate 2012 during secondary filtration can be improved by arranging a plurality of hydraulic cylinders 2011, and the filtration efficiency is improved.
In the present embodiment, four hydraulic cylinders 2011 are distributed on the fixed plate 201 in a rectangular array, the four hydraulic cylinders 2011 are used to push one pressing plate 2012 to perform the secondary pressing operation,
Sixteen hydraulic cylinders 2011 in the above embodiment are distributed on the fixed plate 201 in a rectangular array, and four hydraulic cylinders 2011 are all used for pushing one extrusion plate 2012 to perform secondary squeezing operation, and extrusion force of the extrusion plate 2012 during secondary filtering can be improved by arranging a plurality of hydraulic cylinders 2011, so that filtering efficiency is improved.
The number of the hydraulic cylinders 2011 in the above embodiment is twenty four, twenty four hydraulic cylinders 2011 are distributed on the fixed plate 201 in a rectangular array, and the four hydraulic cylinders 2011 are all used for pushing one extrusion plate 2012 to perform secondary squeezing operation, and extrusion force of the extrusion plate 2012 during secondary filtering can be improved by arranging a plurality of hydraulic cylinders 2011, so that filtering efficiency is improved.
The number of the hydraulic cylinders 2011 in the above embodiment is forty-eight, forty-eight hydraulic cylinders 2011 are distributed on the fixed plate 201 in a rectangular array, and four hydraulic cylinders 2011 are all used for pushing one extrusion plate 2012 to perform secondary squeezing operation, and extrusion force of the extrusion plate 2012 during secondary filtering can be improved by arranging a plurality of hydraulic cylinders 2011, so that filtering efficiency is improved.
In some embodiments of the present invention, as shown in fig. 5, the fixing frame 2 is provided with a through hole 203 along a side wall thereof, and an oil inlet pipe 2031 connected to a plurality of hydraulic cylinders 2011 is penetrated in the through hole 203.
The number of the oil inlet pipelines 2031 in the embodiment is matched with that of the hydraulic cylinders 2011, each hydraulic cylinder 2011 is communicated with one oil inlet pipeline 2031, and meanwhile, the plurality of oil inlet pipelines 2031 are combined into the same through hole 203, so that the use of pipes can be reduced, and the manufacturing cost is reduced.
In some embodiments of the present invention, as shown in fig. 2 to 4, an assembly notch matched with the number of the hydraulic cylinders 2011 is formed in the fixing plate 201, and the hydraulic cylinders 2011 are installed in the assembly notch through the flange 2013. The hydraulic cylinder 2011 is fixed in the assembly notch by the cooperation of bolts and the flange 2013, so that a filling space for a sludge medium is formed in the filter plate 1.
In some embodiments of the present invention, as shown in fig. 3, a slider 3 is connected between the pressing plate 2012 and the fixing frame 2. The operation of the compression plate 2012 can be smoother by providing the slider 3 between the compression plate 2012 and the fixing frame 2.
In some embodiments of the present invention, as shown in fig. 3, the cross section of the slider 3 is L-shaped, and the bottom of the compression plate 2012 is erected in the notch of the slider 3.
The bottom of the sliding block 3 in this embodiment is provided with a hole, and a bolt connected with the extrusion plate 2012 is inserted into the hole, and the sliding block 3 and the extrusion plate 2012 are fixed by the bolt.
In the above embodiment, the slider 3 and the pressing plate 2012 are connected by using structural adhesive.
In some embodiments of the present invention, as shown in fig. 3 and 4, the fixing plate 201 and the pressing plate 2012 are provided with water guide plates 4 toward the side walls of the adjacent two-sided filter plates 1. The water guide plate 4 is one of the accessories of the filter plate, and has the function of water guide, and the water guide function is fully exerted due to the special technology and the cooperation of the filter cloth 202; the water guide plate 4 in this embodiment is made of polyethylene material and compressed by a grinding tool, and the water guide plate 4 has the function of forming a gap on the back surface of the filter cloth 202, and when the material flows into the chamber, the filtrate filtered out by the filter cloth 202 flows out through the water guide plate 4.
In some embodiments of the present invention, as shown in fig. 5, the sidewall of the holder 2 is provided with an access opening 101. The side wall of the fixing frame 2 is provided with the overhaul port 101, so that staff can conveniently maintain and overhaul the invention in the later period.
In summary, an embodiment of the present invention provides a high-pressure filtering mechanism for a filter press, including a filtering unit, where the filtering unit includes a plurality of filtering plates 1 that are sequentially attached, and a dewatering mechanism for extruding sludge is disposed in the filtering plates 1. The filter unit is erected on the filter press frame to realize filter pressing operation; the filtering unit comprises a plurality of mutually attached filtering plates 1 to form an extrusion state, and the filtering plates 1 on two adjacent sides form an extrusion state of sludge by filling, so that the dewatering effect is realized; meanwhile, the dewatering mechanism additionally arranged in each filter plate 1 can further squeeze and dewater the sludge, so that the sludge can be deeply dewatered, and the dewatering mechanism can dewater the sludge by larger extrusion force than the existing filter plates, so that the dewatering efficiency is greatly improved, and the dewatering operation of the whole mechanism is more powerful; according to the invention, the dewatering efficiency of sludge can be improved by additionally arranging the dewatering mechanism in the filter plate 1, the sludge can be subjected to primary filtration through the filter plate 1, and secondary filtration is performed through the dewatering mechanism in the filter plate 1, so that the dewatering amount of the sludge is greatly improved, and the secondary deep dewatering pressure of the sludge is high and can reach 3.5MPa per square centimeter; the device solves the problems that a diaphragm filter plate is easy to damage, the sludge deep dehydration pressure requirement and the secondary squeezing stroke are limited; solves the problem of limited corrosion and fracture of the spring on the spring metal filter plate and secondary squeezing stroke; the design ensures that the filtering unit has the multi-stage dehydration effect, so that the sludge can be deeply dehydrated, the practical value is greatly improved, and the filtering unit is convenient for large-scale popularization and use.
When in actual use, the staff installs the filter unit on the compressor frame at first to communicate the feedwell, through the compression cavity that lets in the filter unit with the mud in the feedwell, carry out one-level compression dehydration, after the one-level dehydration finishes, the staff starts the dehydration mechanism and carries out the pressurization dehydration to the mud in the cavity and realize the second grade dehydration operation, starts the blowback mechanism of compressor after the dehydration finishes, blows back the higher mud medium blowing of the moisture content of filter unit into the pond of managing.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. The high-pressure filtering mechanism for the filter press is characterized by comprising a filtering unit, wherein the filtering unit comprises a plurality of filtering plates which are sequentially attached, and a dewatering mechanism for extruding sludge is arranged in each filtering plate;
the filter plate comprises a fixing frame, fixing plates and two filter cloths, wherein the fixing plates are arranged in the fixing frame in a frame-by-frame mode, the two filter cloths are respectively laid at the openings of the fixing frame facing the adjacent two sides of the filter plate, and the dehydrator framework is arranged on the fixing plates;
The dewatering mechanism comprises a hydraulic cylinder and an extrusion plate, the hydraulic cylinder is arranged on the fixed plate, the shaft head of the hydraulic cylinder faces any adjacent filter plate, and the extrusion plate is connected with the shaft head of the hydraulic cylinder;
The plurality of hydraulic cylinders are distributed on the fixed plate in an array manner, shaft heads of the plurality of hydraulic cylinders are connected with an extrusion plate, through holes are formed in the side walls of the fixing frame along the fixing frame, oil inlet pipelines connected with the plurality of hydraulic cylinders are arranged in the through holes in a penetrating manner, assembly notches matched with the plurality of hydraulic cylinders in number are formed in the fixed plate, and the hydraulic cylinders are mounted in the assembly notches through flange plates;
a sliding block is connected between the extrusion plate and the fixing frame, the section of the sliding block is L-shaped, and the bottom of the extrusion plate is erected in a notch of the sliding block;
The side walls of the fixed plate and the extruding plate facing the filter plates at two adjacent sides are provided with water guide plates;
and the side wall of the fixing frame is provided with an access hole.
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| CN203291583U (en) * | 2013-05-27 | 2013-11-20 | 烟台未来自动装备有限责任公司 | Filter pressing unit of full-automatic vertical type high pressure filter |
| CN211339236U (en) * | 2019-12-13 | 2020-08-25 | 广东水之源环境工程有限公司 | An energy-saving sludge filter press equipment |
| CN218202494U (en) * | 2020-12-02 | 2023-01-03 | 北京山清源环保科技有限公司 | High-pressure filtering mechanism for filter press |
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| JP3542760B2 (en) * | 2000-03-30 | 2004-07-14 | 株式会社栗田機械製作所 | Filtration and concentration apparatus and method |
| KR100736369B1 (en) * | 2006-03-29 | 2007-07-06 | 김기태 | Filter press with multiple hydraulic cylinders |
| CN103458984B (en) * | 2011-03-24 | 2015-08-19 | 株式会社久保田 | Filter press dehydrator |
| KR101404619B1 (en) * | 2014-02-28 | 2014-06-09 | 주식회사 코스멕 | Attachment structure of filter for filter-presser |
| CN107698126B (en) * | 2017-04-08 | 2019-11-01 | 浙江威治环保科技有限公司 | Microwave improves dehydration and drying sludge treating system |
| CN107382009A (en) * | 2017-07-28 | 2017-11-24 | 浙江海河环境科技有限公司 | Super-pressure sludge high-drying degree dewatering |
| CN207062125U (en) * | 2017-07-28 | 2018-03-02 | 浙江海河环境科技有限公司 | A kind of super-pressure sludge high-drying degree dehydration device |
| CN208726841U (en) * | 2018-06-25 | 2019-04-12 | 烟台百润机械有限公司 | A kind of acid and alkali-resistance filter press plate of vertical type blotter press |
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| CN203291583U (en) * | 2013-05-27 | 2013-11-20 | 烟台未来自动装备有限责任公司 | Filter pressing unit of full-automatic vertical type high pressure filter |
| CN211339236U (en) * | 2019-12-13 | 2020-08-25 | 广东水之源环境工程有限公司 | An energy-saving sludge filter press equipment |
| CN218202494U (en) * | 2020-12-02 | 2023-01-03 | 北京山清源环保科技有限公司 | High-pressure filtering mechanism for filter press |
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