CN108465278B - High-pressure plate-and-frame filter press with telescopic filter plate - Google Patents
High-pressure plate-and-frame filter press with telescopic filter plate Download PDFInfo
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- CN108465278B CN108465278B CN201810493554.8A CN201810493554A CN108465278B CN 108465278 B CN108465278 B CN 108465278B CN 201810493554 A CN201810493554 A CN 201810493554A CN 108465278 B CN108465278 B CN 108465278B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/21—Plate and frame presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/21—Plate and frame presses
- B01D25/215—Construction of the filter plates, frames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/32—Removal of the filter cakes
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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
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
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- Chemical Kinetics & Catalysis (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a high-pressure plate frame filter press with telescopic filter plates, which comprises a first fixing plate, a second fixing plate, a hydraulic press fixed on the second fixing plate and a plurality of combined plate frames, wherein the combined plate frames are sequentially, movably and transversely stacked between the first fixing plate and the telescopic end of the hydraulic press through plate frame supporting transverse pipes, the inner cavities of the plate frames are sequentially connected in series and then communicated with a sludge injection port, the telescopic filter plates for extruding and filtering the plate frame materials are arranged in each plate frame, and the telescopic filter plates are respectively connected with an external vacuum device, an air blowing device and a hydraulic device through a plurality of pipelines. The invention has the advantages of simple structure, low manufacturing cost, easy operation and maintenance, easy installation and disassembly of the filter plate and the filter cloth, convenient sludge discharge, low energy consumption, adjustable sludge treatment capacity and the like, and can be widely popularized and applied.
Description
Technical Field
The invention relates to a filter pressing device, in particular to a plate-and-frame filter press which utilizes the expansion of a hydraulic head in a filter plate to drive the expansion of a filter plate panel to carry out high-pressure solid-liquid separation.
Background
The filter press is used in the sugar industry in the beginning of the 20 th century and has the characteristics of small floor area, low water content of filter cakes, strong adaptability to materials and the like. The initial manual operation has the problems of high labor intensity, long cycle time and the like, and the popularization and the application of the filter press are limited. Automatic filter presses appeared in the 50 s of the 20 th century, the performance of the filter press is fundamentally changed, the working efficiency is improved, and the filter press is beginning to be used in industries such as coal, metallurgy and the like. Through decades of development, the filter press is greatly improved in structure and material, and technologies such as rapid feeding and discharging, diaphragm pressing, strong airflow penetration and the like are provided. The existing filter press is widely applied to the field of environmental protection, in particular to the sludge dewatering industry.
In the sludge dewatering industry, the most widely used filter press models are the belt filter press and the plate and frame filter press. However, with the increase of the dehydration requirement, the water content of the filter cake is continuously required to be reduced, the belt filter press is gradually eliminated, and the conventional plate and frame filter press can not meet the requirement of low water content of the filter cake gradually. High-pressure plate-and-frame filter presses have emerged, of which the diaphragm-type plate-and-frame filter press is the most widely used.
The diaphragm plate-and-frame filter press can realize full-automatic feeding and discharging, and the water content of the filter cake is lower and can reach below 40%. However, the diaphragm plate-and-frame filter press has some defects, for example, the diaphragm can be broken after being used for a long time, the whole operation process is long, and when mud is discharged, the diaphragm plate-to-plate filter press needs to move in sequence one by one, which takes a lot of time. In addition, the membrane plate and frame filter press is relatively high in manufacturing cost. These reasons limit its use and make it impossible to completely replace conventional plate and frame filters.
Based on the market demand for high-pressure filter presses and the defects of diaphragm plate-and-frame filter presses, the invention designs the high-pressure plate-and-frame filter press with the telescopic filter plate. The device utilizes the inside hydraulic head of filter plate to stretch out and draw back and drive the flexible solid-liquid that carries out high pressure separation of filter plate panel for the moisture content of filter cake reaches lower, satisfies the market requirement. After the filter pressing is completed, the plate frames are pulled open through the hydraulic press, and the simultaneous sludge discharge of the plate frames is realized. The device has the advantages of low manufacturing cost, short cycle operation time, simple cleaning and maintenance, low maintenance cost and larger market in the sludge dewatering industry.
Disclosure of Invention
Aiming at the market demand and the technical difficulty of the prior high-pressure filter press, the invention provides a high-pressure plate-and-frame filter press with a telescopic filter plate. The device mainly comprises a telescopic filter plate, a plate frame, a hydraulic press, a vacuum device, an air blowing device, a fixed plate frame, a hydraulic device and the like. The device has the advantages of low manufacturing cost, short cycle operation time, simple cleaning and maintenance, low maintenance cost and the like, and can be widely popularized and applied.
The invention is realized by adopting the following technical scheme:
the utility model provides a filter plate telescopic high pressure plate frame filter press, includes relative first fixed plate, the second fixed plate that sets up, fixes the hydraulic press on the second fixed plate, supports through the plate frame and violently manage the setting of horizontal stack of a plurality of combinations in proper order and be in first fixed plate with the flexible end of hydraulic press between the plate frame, the inner chamber of each plate frame concatenates the back in proper order and is linked together with the mud introduction port, every the plate frame in all be provided with right the plate frame material carries out the scalable filter plate of extrusion drainage, scalable filter plate connect external vacuum apparatus, air-blowing device and hydraulic means respectively through a plurality of pipelines.
Furthermore, scalable filter plate include the bag filter cloth, the parcel that seal through the zip fastener filter plate frame in the filter cloth, evenly set up a plurality of small-size hydraulic pressure heads that both ends are flexible simultaneously in the filter plate frame, but the flexible panel of level incorgruous translation is connected symmetrically at the both ends of small-size hydraulic pressure head, but small-size hydraulic pressure head passes through hydraulic pressure union coupling external hydraulic means, still be provided with the flowing back/the drum pipe of connecting external vacuum device and air-blowing device simultaneously in the filter plate frame.
Furthermore, the hydraulic pipe adopts a high-pressure-resistant soft oil pipe with the withstand pressure within 2.0MPa, the diameter of the hydraulic pipe is 0.5-1.0cm, the pressure of high-pressure filter pressing is generally less than 1.0MPa, and the ultrahigh-pressure filtering can reach 1.0MPa, so that the withstand pressure of the high-pressure-resistant soft oil pipe is 2.0MPa, and the hydraulic pipe is safe and economical. The diameter of the oil pipe is proper and is 0.5-1.0cm, and if the diameter is too large, the oil pipe occupies a larger space, and if the diameter is too small, the resistance is too large when the oil pipe is used for quickly conveying oil; the liquid drainage/air blowing pipe is a plastic air pipe, the diameter of the plastic air pipe is 0.5-1.0cm, PU pipes with corresponding sizes are arranged on the market, and the design can be met in pressure resistance and corrosion resistance. The pipe is too large, which occupies a larger space, and too small, which can cause too large resistance and easy blockage during liquid discharge, so that the diameter of the pipe is more suitable to be 0.5-1.0cm, and the function of the air pipe is that filtrate collected by the telescopic panel is discharged into the fixed transverse pipe during filter pressing; and secondly, when gas backwashing is carried out, high-pressure gas enters the telescopic panel through the fixed transverse pipe.
Furthermore, a plurality of small holes are uniformly formed in the telescopic panel, so that filtrate can conveniently pass through the small holes.
Furthermore, the diameter of the small hole is 1-3mm, the diameter of the small hole on the panel is influenced by the pressure resistance of the filter cloth and sludge particles, and the filter cloth is easily damaged by larger pressure at the middle position of the hole in the filter pressing process; too small, the pores are easily clogged by sludge particles permeating through the filter cloth, and therefore, a diameter of the pores of 1 to 3mm is suitable. Liquid in the sludge passes through the filter cloth, then enters the liquid discharge/air blowing pipe through the small holes of the panel, adopts a plastic air pipe, then is discharged into the horizontal solid pipe, and finally is extracted out of the system.
Furthermore, the same side of all sheet frame top surfaces all is provided with scalable filter plate jib, and the side is provided with the sheet frame mud introduction port that is linked together with adjacent sheet frame, the top of scalable filter plate pass the place sheet frame roof and hang through the hooklet in on the scalable filter plate jib.
Furthermore, the plate frame comprises a plate frame A part and a plate frame B part which are arranged in a bilateral symmetry mode, and the telescopic filter plate hanging rod is fixed on the top surface of the plate frame A part; four corners of the top surfaces of the plate frame A part and the plate frame B part are provided with plate frame suspension fixing holes matched with the plate frame support transverse pipes, and through holes matched with the top of the plate frame after splicing are symmetrically arranged in the middle of the top surfaces.
Furthermore, distance locking clamps used for limiting the maximum distance between the top of the telescopic filter plate and the top of the plate frame part B of the plate frame are connected between the adjacent plate frame top surfaces, the same plate frame part A and the plate frame part B of the plate frame, and the distance locking clamps used for limiting the maximum distance between the top of the telescopic filter plate and the plate frame part B of the plate frame are arranged between the adjacent plate frame top surfaces, so that the stable and uniform distance between all the parts is guaranteed to be kept when the telescopic.
Furthermore, a hydraulic pipe fixing horizontal pipe and a filtrate discharge pipe/air inlet pipe fixing horizontal pipe are fixed between the first fixing plate and the second fixing plate in a crossing manner, one end of the hydraulic pipe fixing horizontal pipe and one end of the filtrate discharge pipe/air inlet pipe fixing horizontal pipe are fixed to be sealed, and the other end of the hydraulic pipe fixing horizontal pipe and the other end of the filtrate discharge pipe/air inlet pipe fixing horizontal pipe are respectively provided with a hydraulic oil inlet and outlet port which is connected with a vacuum device, namely a filtrate discharge port/air inlet; the middle parts of the hydraulic pipe fixing horizontal pipe and the filtrate discharge pipe/air inlet pipe fixing horizontal pipe are respectively connected with a hydraulic pipe and a liquid discharge/air blowing pipe corresponding to the telescopic filter plate through a plurality of telescopic hydraulic pipes and telescopic liquid discharge pipes/air inlet pipes.
Furthermore, the diameter of the inner hole of the hydraulic pipe fixing horizontal pipe and the filtrate discharge pipe/air inlet pipe fixing horizontal pipe is 1-3cm, and the rigidity of the horizontal pipe can be influenced due to the overlarge diameter of the inner hole of the horizontal pipe; too small increases the resistance to liquid flow, and therefore, the inner bore diameter of 1-3cm is more suitable in the liquid flow range of the common plate-and-frame filter pressing. The horizontal pipes are main pipes of hydraulic oil or filtrate in the telescopic filter plates, and the diameter of an inner hole of each horizontal pipe is larger than that of a corresponding pipe in the telescopic filter plate, so that the conveying resistance can be reduced.
The operation flow of the invention is roughly as follows:
each group of plate frames are compressed tightly through a hydraulic press, then sludge is carried out inside the plate frames through the channel at the upper corners inside the plate frames, filtrate enters the inside of the telescopic filter plate through the filter cloth of the telescopic filter plate and is then discharged through the liquid discharge pipe, and the process is a conventional plate frame filter pressing process and is similar to common plate frame filter pressing. After the conventional filter pressing is finished, stopping feeding the sludge, closing the corresponding valve, and starting the hydraulic device to enable hydraulic oil to enter the small hydraulic head inside the telescopic filter plate, so that the telescopic plate surface of the telescopic filter plate is expanded outwards to further filter press the sludge, and the purpose of high-pressure filter pressing is achieved. After the high-pressure filter pressing is finished, hydraulic oil is sucked back by a hydraulic device, the telescopic plate surfaces of the telescopic filter plates retract inwards, and then the hydraulic device retracts to pull the filter plates apart for discharging mud. Because each filter plate and the telescopic filter plate are respectively provided with a corresponding distance locking clamp for fixing the maximum adjacent distance, the filter plates and the telescopic filter plates can be gradually and sequentially pulled apart along with the retraction of the hydraulic press and can discharge mud. After the sludge is discharged, high-pressure gas can be introduced through the gas inlet pipe to carry out gas backwashing on the filter cloth of the telescopic filter plate. After the back flushing is finished, the hydraulic device is started again, and each filter plate is compressed to enter the next batch of sludge for filter pressing.
Compared with the existing diaphragm type plate-and-frame filter press, the high-pressure plate-and-frame filter press with the telescopic filter plate provided by the invention has the following advantages:
1) the structure is simple, the operation and the maintenance are easy, the weight is lighter than that of a common plate-and-frame filter press, and the installation and the disassembly of the filter plate are simple;
2) the filter cloth (made into a bag type and sealed by a zipper) is easy to install and disassemble;
3) the sludge discharge is simple and can be completely discharged at one time, and the sludge discharge is not required to be gradually and sequentially performed by each plate in a common plate-and-frame filter press;
4) the operation energy consumption is low, and the sludge treatment capacity of a single batch can be adjusted (by increasing or decreasing the number of the plate frames).
Drawings
Fig. 1 is a schematic view of the overall structure of a high-pressure plate-and-frame filter press with retractable filter plates according to an embodiment of the present invention.
Fig. 2 is a schematic perspective view of a plate frame according to an embodiment of the present invention.
Fig. 3 is a schematic front sectional view of a retractable filter plate according to an embodiment of the present invention.
Fig. 4 is a schematic side sectional view of a retractable filter plate according to an embodiment of the present invention.
Shown in the figure: 1-a first fixing plate; 2-a plate frame; 3, a telescopic filter plate; 4-a sludge sample inlet; 5-filtrate outlet/inlet (connected to vacuum/air-blowing device); 6-hydraulic oil inlet and outlet (connected with a hydraulic device); 7-telescopic hydraulic pipe; 8-telescopic drain/inlet pipe; 9-fixing the horizontal pipe by a hydraulic pipe; 10-filtrate discharge pipe/air inlet pipe fixing transverse pipe; 11-a plate frame support horizontal pipe; 12-a second fixing plate; 13-a hydraulic press; 14-panel frame a part; 15-plate frame sludge sample inlet; 16-a distance locking clamp for the plate frame A and the plate frame B; 17-adjacent plate frame distance locking clip; 18-a retractable filter plate boom; 19-upper end of telescopic filter plate; 20-small hydraulic head oil inlet and outlet; 21-plate frame filtrate outlet/inlet; 22-a distance locking clamp between the filter plate and the plate frame B part; 23-plate frame hanging fixing holes; 24-panel frame part B; 25-filter cloth; 26-expansion plate surface; 27-hydraulic pipe; 28-drainage/insufflation tube; 29-small hydraulic head; 30-filter plate frame.
Detailed Description
The purpose of the present invention is described in further detail below by using specific examples, which cannot be described in detail herein, but the embodiments of the present invention are not limited to the following examples.
As shown in fig. 1, the high-pressure plate-and-frame filter press with the telescopic filter plates comprises a first fixing plate 1, a second fixing plate 12, a hydraulic press 13 fixed on the second fixing plate, and a plurality of combined plate frames 2 which are sequentially, movably and transversely stacked between the first fixing plate 1 and the telescopic end of the hydraulic press 13 through a plate-and-frame supporting transverse pipe 11, wherein the hydraulic stroke of the hydraulic press 13 is long enough to open all the plate frames for sludge discharge. The first fixing plate 1 and the second fixing plate 12 can be made of conventional steel, and the bottoms of the two fixing plates can be fixed on a cement plate or connected and fixed by steel, so that the effect that the relative distance between the two fixing plates is not changed is achieved; the plate frame supporting transverse pipe 11 is made of steel pipes with high strength, and the transverse pipe is used for hanging each plate frame 2 and is high in bearing capacity. A hydraulic pipe fixing horizontal pipe 9 and a filtrate discharge pipe/air inlet pipe fixing horizontal pipe 10 are fixed between the first fixing plate 1 and the second fixing plate 12 in a crossing manner, the diameters of inner holes of the hydraulic pipe fixing horizontal pipe 9 and the filtrate discharge pipe/air inlet pipe fixing horizontal pipe 10 are not too large, the diameters are 2cm in the embodiment, one end of the hydraulic pipe fixing horizontal pipe 9 and one end of the filtrate discharge pipe/air inlet pipe fixing horizontal pipe 10 are sealed, and the other end of the hydraulic pipe fixing horizontal pipe 9 and the other end of the filtrate discharge pipe/air inlet pipe fixing horizontal pipe 10 are respectively provided with a filtrate discharge port/air inlet 5 connected with a; the inner cavity of each plate frame 2 is linked together with sludge sampling port 4 after concatenating in proper order, every plate frame 2 in all be provided with right the plate frame 2 material carries out the scalable filter plate 3 of extrusion drainage, scalable filter plate 3 connect external vacuum device, air-blowing device and hydraulic means respectively through a plurality of pipelines.
As shown in fig. 3 and 4, scalable filter plate 3 includes bag filter cloth 25, the parcel that seals through the zip fastener is in filter plate frame 30 in the filter cloth 2, evenly set up five small-size hydraulic ram 29 in the filter plate frame 30, but the flexible panel 26 of level incorgruous translation is connected symmetrically to the both ends of small-size hydraulic ram 29, flexible panel 26 is stainless steel preparation and evenly is provided with a large amount of diameters and is 2 mm's aperture, makes things convenient for the filtrating to pass through. The small hydraulic head 29 is connected with an external hydraulic device through a hydraulic pipe 27, and can be ejected out to two ends simultaneously during pressurization and retracted simultaneously during decompression; the filter plate frame 30 is also provided with a liquid/air exhaust pipe 28 which is connected with an external vacuum device and an air blowing device. The filter plate frame 30 serves as a basic skeleton of the retractable filter plate 3, and is made of stainless steel.
The hydraulic pipe 27 is a high-pressure-resistant soft oil pipe with the pressure resistance within 2.0MPa and the diameter of the high-pressure-resistant soft oil pipe is 0.5-1.0 cm; the flowing back/blast pipe 28 adopts the plastics trachea, like the PU trachea, and the diameter is 0.5~1.0cm, PU trachea lower extreme extends to the inside lowest end of scalable filter plate 3.
The filter cloth 25 is made of common polyester fiber filter cloth, is made into a bag shape, is sealed by a zipper, is convenient to mount and dismount, and has the size based on the most extended filter plate. When the telescopic filter plate 3 is installed, a filter plate frame 30 is firstly hung on a telescopic filter plate suspension rod 18, then a hydraulic pipe 27, a liquid discharge/air blowing pipe 28 and a small hydraulic head 29 are installed, then two telescopic plate surfaces 26 are installed, two ends of the two telescopic plate surfaces 26 and the small hydraulic head 29 are fixed by screws, and finally filter cloth 25 is installed.
The middle parts of the horizontal fixed hydraulic pipe tube 9 and the horizontal fixed filtrate discharge pipe/air inlet pipe tube 10 are respectively connected with a hydraulic pipe 27 and a liquid discharge/air blowing pipe 28 corresponding to the telescopic filter plate 3 through a plurality of telescopic hydraulic pipes 7 and telescopic liquid discharge pipes/air inlet pipes 8.
As shown in fig. 2, the same one side of all sheet frame 2 top surfaces all is provided with scalable filter plate jib 18, and the side is provided with sheet frame sludge sample inlet 15 that is linked together with adjacent sheet frame 2, the upper end 19 of scalable filter plate 3 pass place sheet frame 2 roof and hang through the hooklet in on the scalable filter plate jib 18, simultaneously, upper end 19 still is provided with small-size hydraulic ram business turn over hydraulic fluid port 20 and sheet frame filtrating discharge port/air inlet 21, small-size hydraulic ram business turn over hydraulic fluid port 20 acts as the interface between hydraulic means and the hydraulic pressure pipe 27, sheet frame filtrating discharge port/air inlet 21 acts as interface between air-blowing device, vacuum apparatus and flowing back/air-blowing pipe 28.
Specifically, the plate frame 2 comprises a plate frame a part 14 and a plate frame B part 24 which are arranged in a left-right symmetry manner, and the telescopic filter plate hanger rods 18 are fixed on the top surface of the plate frame a part 14; four corners of the top surfaces of the plate frame A part 14 and the plate frame B part 24 are provided with plate frame suspension fixing holes 23 matched with the plate frame support transverse pipe 11, and the middle of the top surfaces are symmetrically provided with through holes matched with the top of the plate frame 2 after being spliced. The plate frame A part 14, the plate frame sludge sampling port 15, the plate frame B part 24 and the plate frame suspension fixing hole 23 are made of steel, are similar to the common plate frame filter press, and are cast and integrally formed.
In addition, adjacent plate frame distance locking clamps 17 used for limiting the maximum distance between the adjacent plate frames 2 are connected between the top surfaces of the adjacent plate frames 2, plate frame distance locking clamps 16 used for limiting the maximum distance between the plate frame A part 14 and the plate frame B part 24 of the same plate frame 2 are connected between the plate frame A part 14 and the plate frame B part 24 top surfaces, and filter plate and plate frame distance locking clamps 22 used for limiting the maximum distance between the telescopic filter plate 3 and the plate frame B part 24 top surface of the plate frame 2 are connected between the top of the telescopic filter plate 3, so that the stable and uniform distance between the parts can be kept when the telescopic filter plate is opened and unloaded. In the embodiment, the adjacent plate frame distance locking clamp 17, the plate frame A and B distance locking clamp 16 and the filter plate and plate frame B distance locking clamp 22 are common long circular steel rings and are fixed at corresponding positions by bolts, so that fixed accessories can only move within the size range in the steel rings; the telescopic filter plate hanger rods 18 are made of common steel materials and then fixed on the plate frame A part 14 for hanging the telescopic filter plates 3.
The vacuum device, the air blowing device and the hydraulic device in the embodiment are external equipment of the plate-and-frame filter press, are connected with the filter press through pipelines, and are all conventional mature devices.
The specific process of the periodic operation of feeding, dewatering and discharging in the embodiment comprises the following steps:
(1) and (4) pressing the plate frame. The plate frames are pressed tightly by a hydraulic press 13.
(2) Feeding. The sludge is pumped into the sludge injection port 4 by a pump and flows into the plate frames 2.
(3) And (4) dehydrating. When the sludge is continuously pumped in, the sludge slowly fills the whole plate frame 2, the muddy water is separated on the telescopic panel 26 of the telescopic filter plate 3, and the filtrate enters the telescopic filter plate 3 and is sucked out through the liquid discharge/air blowing pipe 28 (at this time, the vacuum device needs to be opened to suck out the filtrate), and the process is the conventional filter pressing. After the conventional filter pressing is finished, the sludge pump is stopped, the corresponding valve is closed, the externally connected hydraulic device is started, oil is supplied to each small hydraulic head 29, the two telescopic plate surfaces 26 are expanded outwards, sludge is extruded, high-pressure filter pressing is carried out on the sludge, and the sludge is sucked out through the liquid drainage/air blowing pipe 28 in the high-pressure filter pressing process (at the moment, the vacuum device needs to be opened to suck out filtrate). After the high pressure filtration is completed, the hydraulic device is adjusted to suck back hydraulic oil, so that the two telescopic plate surfaces 26 retract inwards, and then the hydraulic device and the vacuum device are closed, so that the whole dehydration process is completed.
(4) And (6) discharging. After the high pressure filter-pressing is accomplished, start hydraulic means 13, withdraw the hydraulic head to drive each sheet frame 2 and remove, in order to open all sheet frames 2, most mud cake should drop automatically. At this time, the air blowing device is started again, and high-pressure air is blown into the telescopic filter plate 3 through the liquid/air blowing pipe 28, so that the filter cloth 25 is cleaned, and further mud is discharged.
After the unloading and cleaning are finished, the hydraulic device 13 is adjusted again, the plate frame 2 is pressed tightly, and then the next period of filter pressing operation can be carried out.
In addition, the above embodiment provides the whole operation flow of the filter press, and the full-automatic filter press can be realized by adopting P L C control.
The above examples of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (6)
1. The utility model provides a filter plate telescopic high pressure plate frame filter press, includes relative first fixed plate (1), second fixed plate (12) that set up, fixes hydraulic press (13) on the second fixed plate, violently manages (11) through the plate frame support and in proper order movably transversely superpose and set up first fixed plate (1) with the flexible plate frame (2) of a plurality of combinations between the end of hydraulic press (13), the inner chamber of each plate frame (2) concatenates the back in proper order and is linked together its characterized in that with mud introduction port (4): each plate frame (2) is internally provided with a telescopic filter plate (3) for squeezing and filtering water of materials of the plate frame (2), and the telescopic filter plate (3) is respectively connected with an external vacuum device, an air blowing device and a hydraulic device through a plurality of pipelines;
the telescopic filter plate (3) comprises bag-type filter cloth (25) sealed through a zipper, a filter plate frame (30) wrapped in the filter cloth (25), and a plurality of small hydraulic heads (29) which are uniformly arranged in the filter plate frame (30) and have two ends telescopic at the same time, wherein two ends of each small hydraulic head (29) are symmetrically connected with telescopic panels (26) capable of horizontally translating in different directions, the small hydraulic heads (29) are connected with an external hydraulic device through hydraulic pipes (27), and a liquid drainage/air blowing pipe (28) which is simultaneously connected with an external vacuum device and an air blowing device is also arranged in the filter plate frame (30);
the same side of the top surfaces of all the plate frames (2) is provided with a telescopic filter plate hanging rod (18), the side surface of each plate frame is provided with a plate frame sludge injection port (15) communicated with the adjacent plate frame (2), and the top of each telescopic filter plate (3) penetrates through the top wall of the plate frame (2) and is hung on the telescopic filter plate hanging rod (18) through a small hook;
the plate frame (2) comprises a plate frame A part (14) and a plate frame B part (24) which are arranged in a bilateral symmetry mode, and the telescopic filter plate hanger rods (18) are fixed on the top surface of the plate frame A part (14); four corners of the top surfaces of the plate frame A part (14) and the plate frame B part (24) are provided with plate frame suspension fixing holes (23) matched with the plate frame support transverse pipes (11), and the middle parts of the top surfaces are symmetrically provided with through holes matched with the tops of the plate frames (2) after being spliced;
and distance locking clamps for limiting the maximum distance between each two adjacent plate frames (2), between the same plate frame A part (14) and the same plate frame B part (24) of the plate frame (2), and between the top of the telescopic filter plate (3) and the top of the plate frame B part (24) of the plate frame (2) are connected.
2. The high pressure plate and frame filter press with retractable filter plates of claim 1, wherein: the hydraulic pipe (27) is a high-pressure-resistant soft oil pipe with the withstand pressure within 2.0MPa, and the diameter of the high-pressure-resistant soft oil pipe is 0.5-1.0 cm; the liquid drainage/air blowing pipe (28) is a plastic air pipe and the diameter of the plastic air pipe is 0.5-1.0 cm.
3. The high pressure plate and frame filter press with retractable filter plates of claim 1, wherein: a plurality of small holes are uniformly arranged on the telescopic panel (26).
4. The high pressure plate and frame filter press with retractable filter plates of claim 3, wherein: the diameter of the small hole is 1-3 mm.
5. The high pressure plate and frame filter press with retractable filter plates of claim 1, wherein: a hydraulic pipe fixing transverse pipe (9) and a filtrate discharge pipe/air inlet pipe fixing transverse pipe (10) are fixed between the first fixing plate (1) and the second fixing plate (12) in a crossing manner, one end of the hydraulic pipe fixing transverse pipe (9) and one end of the filtrate discharge pipe/air inlet pipe fixing transverse pipe (10) are sealed, and the other end of the hydraulic pipe fixing transverse pipe (9) and the other end of the filtrate discharge pipe/air inlet pipe fixing transverse pipe (10) are respectively provided with a filtrate discharge port/air inlet (5) connected with a vacuum device, namely an air blowing device; the middle parts of the hydraulic pipe fixing transverse pipe (9) and the filtrate discharge pipe/air inlet pipe fixing transverse pipe (10) are respectively connected with a hydraulic pipe (27) and a liquid discharge/air blowing pipe (28) corresponding to the telescopic filter plate (3) through a plurality of telescopic hydraulic pipes (7) and telescopic liquid discharge pipes/air inlet pipes (8).
6. The high pressure plate and frame filter press with retractable filter plates of claim 5, wherein: the diameter of the inner hole of the hydraulic pipe fixing horizontal pipe (9) and the filtrate discharge pipe/air inlet pipe fixing horizontal pipe (10) is 1-3 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810493554.8A CN108465278B (en) | 2018-05-22 | 2018-05-22 | High-pressure plate-and-frame filter press with telescopic filter plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810493554.8A CN108465278B (en) | 2018-05-22 | 2018-05-22 | High-pressure plate-and-frame filter press with telescopic filter plate |
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| CN108465278A CN108465278A (en) | 2018-08-31 |
| CN108465278B true CN108465278B (en) | 2020-07-28 |
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| CN201810493554.8A Active CN108465278B (en) | 2018-05-22 | 2018-05-22 | High-pressure plate-and-frame filter press with telescopic filter plate |
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| CN203417507U (en) * | 2013-08-14 | 2014-02-05 | 丹东东方机电工程有限公司 | High-pressure deep sludge dewatering machine with high efficiency and low consumption |
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| CN208839112U (en) * | 2018-05-22 | 2019-05-10 | 华南理工大学 | A kind of telescopic high pressure plate and frame filter press of filter plate |
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