CN114405083A - High-efficient two diaphragm filter presses - Google Patents
High-efficient two diaphragm filter presses Download PDFInfo
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- CN114405083A CN114405083A CN202210041344.1A CN202210041344A CN114405083A CN 114405083 A CN114405083 A CN 114405083A CN 202210041344 A CN202210041344 A CN 202210041344A CN 114405083 A CN114405083 A CN 114405083A
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- filter
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- frame
- plates
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- 238000003825 pressing Methods 0.000 claims abstract description 77
- 239000000463 material Substances 0.000 claims abstract description 22
- 230000006835 compression Effects 0.000 claims abstract description 11
- 238000007906 compression Methods 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 47
- 239000012065 filter cake Substances 0.000 claims description 32
- 239000007788 liquid Substances 0.000 claims description 28
- 239000012528 membrane Substances 0.000 claims description 20
- 239000004744 fabric Substances 0.000 claims description 13
- 238000007664 blowing Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 239000000725 suspension Substances 0.000 claims description 6
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 8
- 238000000034 method Methods 0.000 claims 1
- 239000002002 slurry Substances 0.000 description 12
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- B01D25/172—Plate spreading means
-
- 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
- B01D25/28—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating
- B01D25/282—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating for drying
- B01D25/284—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating for drying by gases or by heating
-
- 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
- B01D25/34—Removal of the filter cakes by moving, e.g. rotating, the filter elements
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a high-efficiency double-diaphragm filter press, which adopts the technical scheme that: comprises an oil cylinder support; the thrust plate is arranged on one side of the oil cylinder support; two main beams are arranged and are respectively positioned at two sides of the oil cylinder support, and two ends of each main beam are respectively fixed on the oil cylinder support and the thrust plate; the first compression plate is arranged between the oil cylinder support and the thrust plate and is positioned close to the oil cylinder support; a second compression plate disposed between the first compression plate and the thrust plate; and a filtration device; the filtering device comprises a diaphragm plate, wherein the diaphragm plate comprises a frame, a core plate fixedly connected in the frame, two rubber diaphragms arranged at two sides of the frame and two filter cloths arranged at two sides of the rubber diaphragms; the filter pressing operation of the materials can be realized only by arranging the diaphragm plate, and a filter plate does not need to be arranged independently.
Description
Technical Field
The invention relates to the technical field of filter pressing, in particular to a high-efficiency double-diaphragm filter press.
Background
The filter press is the main filtration equipment of solid-liquid separation trade, and its filter unit mainly includes filter plate and diaphragm plate, and many filter plates and a plurality of diaphragm plates are crisscross to be set up, and when the material was filtered, let in the material between diaphragm plate and the filter plate, through the extrusion of diaphragm plate to the material for unnecessary moisture flows out, thereby forms the filter cake between diaphragm plate and filter plate, later a diaphragm plate and filter plate pull open, unload the filter cake.
Among the current pressure filter, all need set up filter plate and diaphragm plate simultaneously, and need crisscross the setting just can accomplish filtering operation, this application provides one kind and need not to set up the filter equipment that the filter plate just can realize the filter-pressing operation.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the high-efficiency double-diaphragm filter press, which can realize the filter pressing operation of materials only by arranging the diaphragm plates without independently arranging the filter plates.
In order to achieve the purpose, the invention provides the following technical scheme: a high-efficiency double-diaphragm filter press comprises an oil cylinder support;
the thrust plate is arranged on one side of the oil cylinder support;
two main beams are arranged and are respectively positioned at two sides of the oil cylinder support, and two ends of each main beam are respectively fixed on the oil cylinder support and the thrust plate;
the first compression plate is arranged between the oil cylinder support and the thrust plate and is positioned close to the oil cylinder support;
a second compression plate disposed between the first compression plate and the thrust plate;
the filtering devices are arranged between the first pressing plate and the second pressing plate and between the second pressing plate and the thrust plate;
the filtering device comprises a plurality of diaphragm plates, and a filter cake is formed between two adjacent diaphragm plates;
the diaphragm plate comprises a frame, a core plate fixedly connected in the frame, two rubber diaphragms arranged at two sides of the frame and two filter cloths arranged at two sides of the rubber diaphragms; the rubber diaphragm comprises a middle part and a connecting part arranged around the middle part, and the connecting part is connected to the frame; when two adjacent diaphragm plates are pressed together, a space for containing filter cakes is formed between the middle parts, close to each other, of the two adjacent diaphragm plates;
a feed inlet penetrating through the frame, the rubber diaphragm and the filter cloth is formed in the middle of the top of the frame, a water pressing inlet penetrating through the frame, the rubber diaphragm and the filter cloth is formed in the middle of the bottom of the frame, the water pressing inlets are respectively communicated with inner cavities of the frames on two sides of the core plate, and a plurality of liquid outlets penetrating through the frame and the rubber diaphragm are formed in the frames;
when the two diaphragm plates are pressed together, the space for accommodating the filter cake between the adjacent middle parts of the two diaphragm plates is communicated with the material inlet and the liquid outlet and is isolated from the water squeezing inlet.
By adopting the technical scheme, when filter pressing operation is required, the diaphragm plates are pressed together, and then slurry is introduced between every two adjacent diaphragm plates through the material inlet, so that the slurry exists in a space between the two middle parts for containing a filter cake, and the middle parts are attached to the core plate under the action of the slurry; then the squeezed water is sent into the inner cavities of the frames at the two sides of the core plate through the water squeezing inlet, the two middle parts squeeze the slurry between the two middle parts under the action of water pressure, the water is sent out through the liquid outlet after passing through the filter cloth, the filter cake is remained between the two middle parts, and then the water is pumped out through the water squeezing inlet.
The invention is further configured to: and the top of the frame is provided with an air back blowing port which penetrates through the frame, the rubber diaphragm and the filter cloth and is used for sending out back blowing air sent from the feeding port.
By adopting the technical scheme, after high-pressure water extrusion is completed, air is introduced through the feeding port, the air passes through the filter cake and then is sent out through the air blowback port, and partial moisture is taken away again through air flow.
The invention is further configured to: the connecting part of the middle part and the connecting part is provided with an extending part which is arranged around the middle part, and the section of the extending part is arranged in a wave shape.
Through adopting above-mentioned technical scheme, through setting up the extension for the displacement distance of intermediate part for connecting portion increases, when the intermediate part that leads to is out displacement distance big less in the pan feeding volume, is difficult to the broken rubber diaphragm.
The invention is further configured to: two mounting grooves are opened to the frame both sides, and connecting portion are close to frame one side fixedly connected with and imbed in the middle of the mounting groove and with the mounting bar of mounting groove mutually supporting.
The invention is further configured to: the cross-sections of the mounting groove and the mounting bar are arranged in a dovetail shape.
Through adopting above-mentioned technical scheme, through setting up the shape to mounting groove and mounting bar cross-section, can improve the steadiness that the rubber diaphragm is fixed on the frame.
The invention is further configured to: the liquid outlet is provided with four, and four liquid outlets are located the position that the frame is close to the four corners respectively.
The invention is further configured to: the distance between the middle part and the core plate is 15mm-20 mm.
The invention is further configured to: the diaphragm plate pressing device comprises a first pressing plate, a second pressing plate and a connecting assembly, wherein the first pressing plate and the second pressing plate are connected through the connecting assembly;
the piston cylinder is fixed on the oil cylinder support and used for pushing the first pressing plate to slide;
and the telescopic cylinder is fixed on the main beam and is used for pushing the second pressing plate to slide.
The invention is further configured to: the connecting component comprises two chain plates, one ends of the two chain plates, which are close to each other, are rotatably connected together, and one ends of the two chain plates, which are far away from each other, are rotatably connected to the diaphragm plate, the first pressing plate or the second pressing plate.
Through adopting above-mentioned technical scheme, through setting up the link joint for first pressure strip and second pressure strip can drive the filter plate and open in proper order.
The invention also aims to provide a high-efficiency double-diaphragm filter pressing method, which comprises the following steps:
s01, closing and pressing the filter plate: the first pressure plate (4) and the second pressure plate (5) press the filter plates tightly, so that the filter plates are mutually overlapped and pressed together;
s02, high-pressure feeding and dehydrating: the suspension liquid is input into a material inlet (65) through a material feeding pump, the suspension liquid stays between two adjacent rubber membranes (63), and redundant moisture is sent out through a liquid outlet (66);
s03, high-pressure water squeezing and dewatering: high-pressure water is introduced into the inner cavities of the frames (61) at the two sides of the core plate (62) through the water pressing inlet (67), so that the rubber membranes (63) can press filter residues between the two rubber membranes (63), the filter residues form filter cakes, and redundant water is sent out through the liquid outlet (66);
s04, high-pressure wind squeezing dehydration: high-pressure air is input through the material inlet (65), and the high-pressure air passes through the filter cake and then is sent out from the air back-blowing port (68);
s05, pulling the filter plate open and discharging: the first pressure plate (4) and the second pressure plate (5) drive the filter plates to be separated, and filter cakes fall from the filter plates.
In summary, compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the filter pressing operation of the material can be realized only by arranging the diaphragm plate, and a filter plate is not required to be arranged independently;
2. after the high-pressure water extrusion is finished, air is introduced through the material inlet, the air is sent out through the air back-blowing port after passing through a filter cake, and partial moisture is taken away again through air flow;
3. according to the invention, the extension part is arranged, so that the displacement distance of the middle part relative to the connecting part is increased, and when the outward moving distance of the middle part is large due to small feeding amount, the rubber diaphragm is not easy to be broken;
4. according to the invention, the shapes of the mounting groove and the section of the mounting strip are set, so that the fixing stability of the rubber diaphragm on the frame can be improved;
5. according to the invention, the chain plates are arranged, so that the first pressing plate and the second pressing plate can drive the filter plates to be opened in sequence.
Drawings
FIG. 1 is a schematic view of the overall structure of the embodiment;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of the portion B of FIG. 1;
FIG. 4 is a cross-sectional view of a filter device of an embodiment;
FIG. 5 is an enlarged view of section C of FIG. 4;
FIG. 6 is a schematic view of a diaphragm plate of an embodiment.
In the figure: 1. an oil cylinder support; 11. a piston cylinder; 12. a plunger cylinder; 2. a thrust plate; 3. a main beam; 4. a first compression plate; 5. a second compression plate; 51. an extension plate; 52. a connecting plate; 6. a diaphragm plate; 61. a frame; 611. mounting grooves; 62. a core board; 63. a rubber diaphragm; 631. an intermediate portion; 632. a connecting portion; 633. an extension portion; 634. mounting a bar; 64. filtering cloth; 65. a feeding port; 66. a liquid outlet; 67. a water press inlet; 68. a reverse air blowing port; 7. a telescopic cylinder; 8. a connecting assembly; 81. a chain plate; 82. a rotation pin; 83. connecting columns.
Detailed Description
In order to make the technical solutions of the present invention better understood, the following description of the technical solutions of the present invention with reference to the accompanying drawings of the present invention is made clearly and completely, and other similar embodiments obtained by a person of ordinary skill in the art without any creative effort based on the embodiments in the present application shall fall within the protection scope of the present application. In addition, directional terms such as "upper", "lower", "left", "right", etc. in the following embodiments are directions with reference to the drawings only, and thus, the directional terms are used for illustrating the present invention and not for limiting the present invention.
The invention is further described with reference to the drawings and the preferred embodiments.
Example (b): a high-efficiency double-diaphragm filter press is shown in attached figures 1-6 and comprises an oil cylinder support 1, a thrust plate 2 arranged on one side of the oil cylinder support 1, two main beams 3 arranged on two sides of the oil cylinder support 1, a first pressure plate 4 arranged between the oil cylinder support 1 and the thrust plate 2 and positioned close to the oil cylinder support 1, a second pressure plate 5 arranged between the first pressure plate 4 and the thrust plate 2, a piston cylinder 11 fixed on the oil cylinder support 1, two telescopic cylinders 7 fixed on the two main beams 3 and a plurality of connecting assemblies 8. Specifically, filtering devices are arranged between the first pressing plate 4 and the second pressing plate 5 and between the second pressing plate 5 and the thrust plate 2; each filter device comprises a plurality of membrane plates 6; the diaphragm plates 6, the first pressure plate 4 and the diaphragm plate 6 closest to the first pressure plate 4, and the second pressure plate 5 and the diaphragm plate 6 closest to the second pressure plate 5 are connected through connecting components 8; the piston cylinder 11 is used for driving the first pressing plate 4 to slide between the oil cylinder and the thrust plate 2, and the telescopic cylinder 7 is used for driving the second pressing plate 5 to slide between the first pressing plate 4 and the thrust plate 2.
Through the action of piston cylinder 11 and telescoping cylinder 7, can drive a plurality of diaphragm plates 6 simultaneously and open and shut, shortened the time that opens and shuts of diaphragm plate 6 greatly to the filter time has been shortened.
Specifically, the connecting assembly 8 includes two chain plates 81, ends of the two chain plates 81 close to each other are rotatably connected together, and ends of the two chain plates 81 away from each other are rotatably connected to the diaphragm plate 6, the first pressing plate 4 or the second pressing plate 5. In the connecting assembly 8 for connecting two adjacent diaphragm plates 6, two chain plates 81 are respectively and rotatably connected to the two diaphragm plates 6, in the connecting assembly 8 for connecting the diaphragm plates 6 and the first pressing plate 4, the two chain plates 81 are respectively and rotatably connected to the diaphragm plates 6 and the first pressing plate 4, and in the connecting assembly 8 for connecting the diaphragm plates 6 and the second pressing plate 5, the two chain plates 81 are respectively and rotatably connected to the diaphragm plates 6 and the second pressing plate 5; rotate two link joints 81 and link together and make link joint 81 and diaphragm plate 6, first pressure strip 4 and second pressure strip 5 rotate to be connected, when compressing tightly diaphragm plate 6, link joint 81 can not cause the hindrance to compressing tightly the operation, and when the frame was opened in needs, link joint 81 can drive diaphragm plate 6 and follow first pressure strip 4 or the slip of second pressure strip 5 in proper order and open the frame.
Specifically, the diaphragm plate 6, the first pressing plate 4 and the second pressing plate 5 are fixedly connected with connecting columns 83, and the chain plates 81 are rotatably connected to the connecting columns 83; the link assembly 8 further includes a pivot pin 82, and the ends of the link plates 81 adjacent to each other are pivotally connected to the pivot pin 82.
Specifically, the oil cylinder support 1, the diaphragm plate 6, the first pressure plate 4, the second pressure plate 5 and the thrust plate 2 are all rectangular plates; a piston rod of the piston cylinder 11 is connected to the rectangular central position of the first pressing plate 4; through the arrangement of the position of the piston cylinder 11, the piston rod can apply pressure to the diaphragm plate 6 through the first pressing plate 4, and the pressure applied everywhere can be more balanced.
Specifically, four plunger cylinders 12 are fixedly connected to the oil cylinder support 1, the four plunger cylinders 12 are respectively located at positions, close to four corners, of the oil cylinder support 1, and plungers of the plunger cylinders 12 are connected with the first pressing plate 4.
Specifically, two connecting plates 52 are arranged on one side of each of the two main beams 3 away from each other, the connecting plates 52 are located on two sides of the second pressing plate 5, one side of the connecting plate 52 close to the second pressing plate 5 is fixedly connected with two extending plates 51 respectively located at the top and the bottom of the main beam 3, the extending plates 51 are fixedly connected to the second pressing plate 5, and the telescopic rod of the telescopic cylinder 7 is connected to the connecting plates 52.
Specifically, the diaphragm plate 6 includes a frame 61, a core plate 62 fixedly connected to the frame 61, two rubber diaphragms 63 disposed on two sides of the frame 61, and two filter cloths 64 disposed on two sides of the rubber diaphragms 63; the rubber diaphragm 63 includes an intermediate portion 631 and a connecting portion 632 provided around the intermediate portion 631, the connecting portion 632 being connected to the frame 61; when the adjacent two diaphragm plates 6 are pressed together, a space for accommodating a filter cake is formed between the intermediate portions 631 of the adjacent two diaphragm plates 6 that are close to each other. Specifically, a feeding port 65 penetrating through the frame 61, the rubber diaphragm 63 and the filter cloth 64 is formed in the middle of the top of the frame 61, a water pressing inlet 67 penetrating through the frame 61, the rubber diaphragm 63 and the filter cloth 64 is formed in the middle of the bottom of the frame 61, the water pressing inlet 67 is respectively communicated with inner cavities of the frame 61 on two sides of the core plate 62, and a plurality of liquid outlets 66 penetrating through the frame 61 and the rubber diaphragm 63 are formed in the frame 61. When the two diaphragm plates 6 are pressed together, the space between the adjacent middle portions 631 of the two diaphragm plates 6 for accommodating the filter cake is communicated with the inlet 65 and the outlet 66, and is isolated from the water pressing inlet 67. Specifically, a seal ring integrally formed on the rubber diaphragm 63 is provided outside the water pressing inlet 67, and when the two diaphragm plates 6 are pressed together, the two seal rings on the rubber diaphragm 63, which are fitted to each other, are pressed together, so that the water pressing inlet 67 is isolated from a space between the adjacent two intermediate portions 631 for accommodating a filter cake.
When filter pressing operation is required, a plurality of diaphragm plates 6 are pressed together, then slurry is introduced between two adjacent diaphragm plates 6 through the material inlet 65, so that the slurry exists in a space between the two middle parts 631 for accommodating filter cakes, and the middle parts 631 are attached to the core plate 62 under the action of the slurry; then, the pressing water is sent into the inner cavities of the frame 61 at both sides of the core plate 62 through the water pressing inlet 67, the two middle parts 631 press the slurry between the two middle parts 631 under the action of water pressure, the water is sent out through the liquid outlet 66 after passing through the filter cloth 64, the filter cake is remained between the two middle parts 631, and then the water is extracted through the water pressing inlet 67, and then high-pressure air is introduced to perform secondary pressing through air.
Specifically, the top of the frame 61 is provided with an air blowback port 68 penetrating through the frame 61, the rubber diaphragm 63 and the filter cloth 64, and the air blowback port is used for sending out blowback air fed from the feeding port 65. When the two diaphragm plates 6 are pressed together, the space between the adjacent middle portions 631 of the two diaphragm plates 6 for accommodating filter cakes is communicated with the blowback air ports 68.
After the water squeezing inlet 67 is fed with high-pressure air for secondary squeezing, air is fed through the feeding port 65, and the air is sent out through the blowback port 68 after passing through the filter cake, and part of water is taken away again through air flow.
Specifically, the connection portion of the intermediate portion 631 and the connection portion 632 is provided with an extension portion 633 disposed around the intermediate portion 631, and the extension portion 633 is disposed in a wave shape in cross section. By providing the extension portion 633, the displacement distance of the intermediate portion 631 with respect to the connection portion 632 is increased, and when the outward movement distance of the intermediate portion 631 is increased due to a small amount of material, the rubber diaphragm 63 is less likely to be torn.
Specifically, two mounting grooves 611 are formed in two sides of the frame 61, and a mounting bar 634 which is embedded into the mounting grooves 611 and is matched with the mounting grooves 611 is fixedly connected to one side of the connecting portion 632, which is close to the frame 61; the mounting groove 611 and the mounting bar 634 are arranged in a dovetail shape in cross section; by providing the mounting bar 634 and the mounting groove 611, the connection between the connection portion 632 and the frame 61 is more stable.
Specifically, the frame 61 is a rectangular frame 61, four liquid outlets 66 are provided, and the four liquid outlets 66 are respectively located at positions near four corners of the frame 61.
Specifically, the distance between the intermediate portion 631 and the core plate 62 is set to 15mm to 20 mm.
The working principle of the high-efficiency double-diaphragm filter press when in use is as follows: when filter pressing operation is required, a plurality of diaphragm plates 6 are pressed together, then slurry is introduced between two adjacent diaphragm plates 6 through the material inlet 65, so that the slurry exists in a space between the two middle parts 631 for accommodating filter cakes, and the middle parts 631 are attached to the core plate 62 under the action of the slurry; then, the squeezed water is sent into the inner cavities of the frames 61 at the two sides of the core plate 62 through the water squeezing inlet 67, the two middle parts 631 squeeze the slurry between the two middle parts 631 under the action of water pressure, the water is sent out through the liquid outlet 66 after passing through the filter cloth 64, the filter cake is remained between the two middle parts 631, then the water is pumped out through the water squeezing inlet 67, then air is introduced through the material inlet 65, the air is sent out through the air back blowing port 68 after passing through the filter cake, and part of the water is taken away again through the air flow; then adjacent two membrane plates 6 are separated so that the filter cake formed between the two membrane plates 6 falls off.
Example two: a high-efficiency double-diaphragm filter pressing method comprises the following steps:
s01, closing and pressing the filter plate: the first pressure plate (4) and the second pressure plate (5) press the filter plates tightly, so that the filter plates are mutually overlapped and pressed together;
s02, high-pressure feeding and dehydrating: the suspension liquid is input into a material inlet (65) through a material feeding pump, the suspension liquid stays between two adjacent rubber membranes (63), and redundant moisture is sent out through a liquid outlet (66);
s03, high-pressure water squeezing and dewatering: high-pressure water is introduced into the inner cavities of the frames (61) at the two sides of the core plate (62) through the water pressing inlet (67), so that the rubber membranes (63) can press filter residues between the two rubber membranes (63), the filter residues form filter cakes, and redundant water is sent out through the liquid outlet (66);
s04, high-pressure wind squeezing dehydration: high-pressure air is input through the material inlet (65), and the high-pressure air passes through the filter cake and then is sent out from the air back-blowing port (68);
s05, pulling the filter plate open and discharging: the first pressure plate (4) and the second pressure plate (5) drive the filter plates to be separated, and filter cakes fall from the filter plates.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. A high-efficient two diaphragm filter presses which characterized in that: comprises an oil cylinder support (1);
the thrust plate (2) is arranged on one side of the oil cylinder support (1);
two main beams (3) are arranged and are respectively positioned at two sides of the oil cylinder support (1), and two ends of each main beam are respectively fixed on the oil cylinder support (1) and the thrust plate (2);
the first compression plate (4) is arranged between the oil cylinder support (1) and the thrust plate (2) and is positioned close to the oil cylinder support (1);
a second compression plate (5) disposed between the first compression plate (4) and the thrust plate (2);
the filtering devices are arranged between the first pressing plate (4) and the second pressing plate (5) and between the second pressing plate (5) and the thrust plate (2);
the filtering device comprises a plurality of diaphragm plates (6), and filter cakes are formed between two adjacent diaphragm plates (6);
the diaphragm plate (6) comprises a frame (61), a core plate (62) fixedly connected in the frame (61), two rubber diaphragms (63) arranged at two sides of the frame (61) and two filter cloths (64) arranged at two sides of the rubber diaphragms (63); the rubber diaphragm (63) comprises an intermediate part (631) and a connecting part (632) arranged around the intermediate part (631), and the connecting part (632) is connected to the frame (61); when two adjacent diaphragm plates (6) are pressed together, a space for containing filter cakes is formed between the middle parts (631) close to each other on the two adjacent diaphragm plates (6);
a feeding port (65) penetrating through the frame (61), the rubber diaphragm (63) and the filter cloth (64) is formed in the middle of the top of the frame (61), a water pressing inlet (67) penetrating through the frame (61), the rubber diaphragm (63) and the filter cloth (64) is formed in the middle of the bottom of the frame (61), the water pressing inlet (67) is respectively communicated with inner cavities of the frame (61) on two sides of the core plate (62), and a plurality of liquid outlets (66) penetrating through the frame (61) and the rubber diaphragm (63) are formed in the frame (61);
when the two diaphragm plates (6) are pressed together, the space between the adjacent middle parts (631) of the two diaphragm plates (6) for containing filter cakes is communicated with the feed inlet (65) and the liquid outlet (66) and is isolated from the water pressing inlet (67).
2. A high efficiency dual membrane filter press according to claim 1 wherein: the top of the frame (61) is provided with an air back-blowing opening (68) which penetrates through the frame (61), the rubber diaphragm (63) and the filter cloth (64) and is used for sending out back-blowing air sent from the feeding opening (65).
3. A high efficiency dual membrane filter press according to claim 2 wherein: an extension part (633) surrounding the middle part (631) is arranged at the joint of the middle part (631) and the connecting part (632), and the section of the extension part (633) is arranged in a wave shape.
4. A high efficiency dual membrane filter press according to claim 3 wherein: two mounting grooves (611) are formed in two sides of the frame (61), and a mounting bar (634) which is embedded into the mounting grooves (611) and is matched with the mounting grooves (611) is fixedly connected to one side, close to the frame (61), of the connecting portion (632).
5. A high efficiency dual membrane filter press according to claim 4 wherein: the cross sections of the mounting groove (611) and the mounting bar (634) are arranged in a dovetail shape.
6. A high efficiency dual membrane filter press according to claim 5 wherein: the number of the liquid outlets (66) is four, and the four liquid outlets (66) are respectively positioned at the positions, close to four corners, of the frame (61).
7. A high efficiency dual membrane filter press according to claim 6 wherein: the distance between the middle part (631) and the core plate (62) is 15mm-20 mm.
8. A high efficiency dual membrane filter press according to claim 7 wherein: the diaphragm pressing device is characterized by further comprising connecting components (8), wherein the connecting components (8) are connected between two adjacent diaphragm plates (6), between the first pressing plate (4) and the diaphragm plate (6) closest to the first pressing plate (4), and between the second pressing plate (5) and the diaphragm plate (6) closest to the second pressing plate (5);
the piston cylinder (11) is fixed on the oil cylinder support (1) and is used for pushing the first pressing plate (4) to slide;
and the telescopic cylinder (7) is fixed on the main beam (3) and is used for pushing the second pressing plate (5) to slide.
9. A high efficiency dual membrane filter press according to claim 8 wherein: the connecting component (8) comprises two chain plates (81), one ends, close to each other, of the two chain plates (81) are rotatably connected together, and one ends, away from each other, of the two chain plates (81) are rotatably connected to the diaphragm plate (6), the first pressing plate (4) or the second pressing plate (5).
10. A high-efficiency double-diaphragm filter pressing method is characterized in that: the method comprises the following steps:
s01, closing and pressing the filter plate: the first pressure plate (4) and the second pressure plate (5) press the filter plates tightly, so that the filter plates are mutually overlapped and pressed together;
s02, high-pressure feeding and dehydrating: the suspension liquid is input into a material inlet (65) through a material feeding pump, the suspension liquid stays between two adjacent rubber membranes (63), and redundant moisture is sent out through a liquid outlet (66);
s03, high-pressure water squeezing and dewatering: high-pressure water is introduced into the inner cavities of the frames (61) at the two sides of the core plate (62) through the water pressing inlet (67), so that the rubber membranes (63) can press filter residues between the two rubber membranes (63), the filter residues form filter cakes, and redundant water is sent out through the liquid outlet (66);
s04, high-pressure wind squeezing dehydration: high-pressure air is input through the material inlet (65), and the high-pressure air passes through the filter cake and then is sent out from the air back-blowing port (68);
s05, pulling the filter plate open and discharging: the first pressure plate (4) and the second pressure plate (5) drive the filter plates to be separated, and filter cakes fall from the filter plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210041344.1A CN114405083A (en) | 2022-01-14 | 2022-01-14 | High-efficient two diaphragm filter presses |
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| CN202460233U (en) * | 2011-07-26 | 2012-10-03 | 浙江建华集团过滤机有限公司 | Rapid subsection type filter press |
| CN105126400A (en) * | 2015-08-11 | 2015-12-09 | 江苏星鑫分离设备制造有限公司 | Elastomeric diaphragm filter plate |
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