CN212262499U - Vertical rotary multi-station diaphragm filter press - Google Patents
Vertical rotary multi-station diaphragm filter press Download PDFInfo
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- CN212262499U CN212262499U CN202022139135.XU CN202022139135U CN212262499U CN 212262499 U CN212262499 U CN 212262499U CN 202022139135 U CN202022139135 U CN 202022139135U CN 212262499 U CN212262499 U CN 212262499U
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Abstract
The utility model provides a vertical rotary multi-station diaphragm filter press, which comprises a main frame and a rotary frame; the rotating frame can rotate around the connecting bearing of the main frame and the rotating frame; a plurality of plate group fixing frames are arranged on the rotary frame along the circumferential direction, and each plate group fixing frame is provided with a group of filter plate groups; each group of filter plate groups at least comprises a pressure stop plate and a first diaphragm filter plate, and the first diaphragm filter plate can reciprocate on the plate group fixing frame towards the direction of the pressure stop plate; at least 1 group of pushing devices are arranged on the outer side of the rotating frame; the pushing device comprises an oil cylinder, and an output rod of the oil cylinder is connected with a pushing plate; the pushing plate can be driven by the oil cylinder to stretch and reciprocate in a translation manner towards the direction of the rotating rack; the pushing plate can move to abut against the filter plate group corresponding to the position of the pushing plate, so that the pushing plate, the first diaphragm filter plate and the pressure stop plate are combined in sequence to form a filter cavity. The utility model discloses an adopt the structure of multistation rotation work, a plurality of stations rotate in step, synchronous operation, have high efficiency, labour saving and time saving, save advantages such as space.
Description
Technical Field
The utility model relates to a solid-liquid separation filtration equipment technical field specifically is diaphragm filter pressing equipment field, more specifically relates to a vertical rotatory multistation diaphragm filter press.
Background
The water content of filter cake (slag) of the diaphragm filter press is below 60% at the lowest, and compared with the traditional chamber filter press, the solid content of the filter cake can be improved by more than 2 times at the highest. And the diaphragm filter press has the advantages of high pressing pressure, good corrosion resistance, convenient maintenance, safety, reliability and the like, and is widely applied to sludge and sewage treatment in industries such as metallurgy, mineral separation, coal gas, papermaking, coking, pharmacy, food, brewing, fine chemistry industry and the like.
At present, the structure of the membrane filter press on the market is similar to the structure of patent with publication number CN204865136U, as shown in fig. 1: comprises a frame 1 ', wherein a cross beam 2 ' is arranged on the frame 1 ' along the horizontal direction; one end of the beam 2 ' is fixedly provided with a thrust plate 3 ', and the other end is provided with a movable plate 4 '; the movable plate 4 ' is driven by the main oil cylinder 5 ' and is movably arranged on the cross beam 2 '; a plurality of filter plates 6 'are hung on the cross beam 2' between the thrust plate 3 'and the movable plate 4' and can move horizontally; a sludge inlet is formed on each filter plate 6', a feeding positioning oil cylinder is arranged between every two adjacent filter plates, a filter cavity is formed, and filter cloth is arranged in each filter cavity; the cross beam 2' is provided with a plate pulling mechanism for separating the filter plates. The technical scheme has the defects that the equipment is large in size, the manual assistance of a scraper and washing is needed after filter pressing, the filtering efficiency is low, the length of the cross beam is prolonged, the filter plate is added, and the filtering cost is high.
There is also an improved structure, for example, patent with publication number CN205699646, which discloses an automatic membrane filter press for mineral separation, wherein filter pressing devices are arranged on the left and right sides of a hydraulic cylinder, and each filter pressing device comprises a pressure stop plate, a plurality of filter plates and a push plate; the both sides of hydraulic cylinder all are connected with the fly leaf through the support column, and the outside of fly leaf is equipped with the push rod, and the push rod is connected with bulldozing the board. According to the scheme, synchronous or independent filter pressing on the left side and the right side is realized, high-flow filter pressing and low-flow filter pressing switching under a certain flow can be realized, and the integral filter pressing efficiency is improved by increasing the length of equipment and the number of filter plates essentially.
In a membrane filter press in the market, a plurality of filter plates are vertically arranged in a horizontal direction, when the filter plates are used by filter elements, the filter plates are pushed together by a pushing and pressing mechanism, so that a filter cavity is formed between the filter plates, then sewage is filled into the filter cavity, the sewage passes through filter cloth in the filter cavity, liquid is dialyzed, enters between the filter cloth and the filter core and is discharged, and solid filter residues are intercepted on the surface of the filter cloth to form filter cakes; then high-pressure fluid or gas medium is injected into the diaphragm plate to make the whole filter cloth swell and press the filter cake, so as to implement further dehydration of the filter cake. After squeezing, the filter plates are separated by a manual or plate pulling mechanism, and filter cakes are separated by vibration or a scraper.
The membrane filter press on the market generally has the following defects: the whole machine has large occupied area and heavy weight, the filter plate and the filter chamber are required to be increased for improving the filtering efficiency, and the power of the pushing mechanism is increased, so that the defects of high cost, high energy consumption, manual auxiliary filter cake removal, low efficiency, difficulty in transportation of the equipment and the like exist.
Based on the defects, the diaphragm filter press with high processing efficiency, small volume and full automation is redesigned.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art's is not enough, provides a vertical rotatory multistation membrane filter press, adopts the mode that the multistation rotation type switches and the synchronous work of multistation, and full automation control has improved filterable efficiency to can reduce the length and the area of complete machine equipment widely under the unchangeable circumstances of assurance throughput.
The utility model discloses a specific technical scheme as follows:
vertical rotatory multistation membrane filter press, including the main frame, still be equipped with rotating frame, a plurality of groups filter plate group and 1 at least thrust unit on the main frame at least:
the rotating rack is horizontally connected to the main rack through a bearing and can rotate along the axis of the bearing; a plurality of plate group fixing frames are arranged on the rotating rack along the circumferential direction; the groups of filter plate groups are correspondingly arranged on the plate group fixing frames one by one; the plurality of groups of filter plate groups can move along with the rotation of the rotary frame; each plate group fixing frame comprises a thrust plate frame fixed on the rotating rack and a cross beam assembly connected to the outer side of the thrust plate frame; each group of filter plate groups at least comprises a pressure stop plate and a first diaphragm filter plate, and filter cloth is respectively arranged on the surfaces of the opposite sides of the pressure stop plate and the first diaphragm filter plate; the pressure stop plate is fixedly arranged on the thrust plate frame; the first diaphragm filter plate is mounted on the beam assembly and can horizontally reciprocate along the beam assembly;
the middle part of the first diaphragm filter plate at least on one side surface facing the pressure stop plate is inwards sunken relative to the periphery of the first diaphragm filter plate to form a first filter plate concave surface; the first diaphragm filter plate is also provided with a first filter plate feeding hole and a first filter plate water outlet hole which are communicated with the concave surface of the first filter plate and the outside;
the at least 1 group of pushing devices are arranged on the outer side of the rotating rack and comprise oil cylinders, pushing plate positioning frames are connected to output rods of the oil cylinders, and vertically arranged pushing plates are fixed on the pushing plate positioning frames; the pushing plate can be driven by the oil cylinder to stretch and reciprocate in the direction of the rotating rack; when the push plate translates towards the direction close to the rotary frame, the push plate can be pressed against the filter plate group corresponding to the position of the push plate, so that the push plate, the first diaphragm filter plate and the pressure stop plate are in parallel in sequence, and a filter cavity is formed between the filter cloth; the first filter plate feeding hole and the first filter plate water outlet hole are communicated with the filter cavity. At the moment, the filter cavity is a cavity formed by combining the pressure stop plate and the concave surface of the first filter plate.
When the vertical rotary multi-station membrane filter press works, the rotary rack drives the plurality of groups of filter plate groups to rotate in a pulse mode in sequence, when the filter plate groups rotate to the position corresponding to the pushing device, the pushing device is started, the pushing plate, the first membrane filter plate and the pressure stop plate are combined in sequence to form a filter cavity, slurry to be filtered is infused into the filter cavity, the slurry enters the filter cavity and is subjected to solid-liquid separation under self pressure, filter cakes (residues) are left in the filter cavity, and filtered water is drained from the filter cavity.
In order to increase the filter pressing treatment capacity of each group of filter plate groups, preferably, a second diaphragm filter plate is further arranged between the pressure stop plate and the first diaphragm filter plate; the second diaphragm filter plate faces the pressure stop plate and two side surfaces of the first diaphragm filter plate respectively, and the middle part of the second diaphragm filter plate is inwards sunken relative to the periphery of the second diaphragm filter plate to form a concave surface of the second diaphragm filter plate; the second diaphragm filter plate is also provided with a second filter plate feeding hole and a second filter plate water outlet hole which are communicated with the concave surface of the second filter plate and the outside; moreover, the second diaphragm filter plate is also provided with filter cloth on two side surfaces facing the pressure stop plate and the first diaphragm filter plate respectively; when the push plate translates towards the direction close to the rotary frame, the push plate, the first diaphragm filter plate, the second diaphragm filter plate and the pressure stop plate are in parallel in sequence, and a filter cavity is formed between every two adjacent filter cloth; the first filter plate feeding hole, the first filter plate water outlet hole, the second filter plate feeding hole and the second filter plate water outlet hole are communicated with the filter cavity. At the moment, the filter cavity consists of a cavity formed by combining a pressure stop plate and a concave surface of the second filter plate and a cavity formed by combining a concave surface of the second filter plate and a concave surface of the first filter plate.
Furthermore, the bodies of the first membrane filter plate and the second membrane filter plate are both made of water filtering materials with microporous channels inside.
Furthermore, in order to increase the filter pressing efficiency, a first elastic diaphragm is further arranged on the concave surface of the first filter plate of the first diaphragm filter plate, and the periphery of the first elastic diaphragm is tightly attached to the concave surface of the first filter plate to form a first diaphragm cavity; and the peripheries of the second elastic diaphragms are tightly attached to the concave surfaces of the second filter plates to form second diaphragm cavities. The structure can realize secondary filter pressing of the slurry. When slurry enters the filter cavity, firstly, solid-liquid separation is carried out on the slurry due to the fact that the pressure of the slurry is increased in a limited space, filter residues are retained between the filter cloth, and the liquid enters the water outlet holes of the first filter plate and/or the water outlet holes of the second filter plate through the filter cloth and is discharged; and then, reversely filling high-pressure water or high-pressure gas into the first diaphragm cavity and/or the second diaphragm cavity to press the first elastic diaphragm and/or the second elastic diaphragm towards the filter cloth direction, so that the filter cavity is pressed again to realize secondary filter pressing.
Furthermore, a water outlet hole and a feed hole of the pressure stop plate are also formed in the pressure stop plate and are respectively communicated with the filter cavity; a one-way check valve is arranged in the pressure stop plate feeding hole; the one-way check valve is used for limiting the slurry in the filter cavity to be discharged through the pressure stop plate feeding hole, is communicated with an external air passage, and can blow back air into the filter cavity to enable the slurry in the pore passage to enter the filter cavity. Furthermore, in order to increase the volume of the filter cavity and the filter pressing efficiency, the pressure stop plate faces to one side surface of the first diaphragm filter plate or the second diaphragm filter plate, and the middle part of the pressure stop plate is inwards sunken relative to the periphery of the first diaphragm filter plate or the second diaphragm filter plate to form a concave surface of the pressure stop plate; and a third elastic diaphragm is covered on the concave surface of the pressure stop plate, and the periphery of the third elastic diaphragm is tightly attached to the concave surface of the pressure stop plate to form a third diaphragm cavity.
Preferably, the pushing plate is a solid plate which is not permeable to water; the pushing plate is provided with a pushing plate feeding hole, and the pushing plate feeding hole corresponds to the first filter plate feeding hole in position.
Because the grouting can bring huge pressure to the filter plate group, the pushing plate and the filter plate group are easily washed away by the pressure of slurry, so that the filter cavity has poor sealing property, slurry leaks and the filter pressing of solid-liquid separation is difficult to realize. In order to enhance the sealing performance of the filter cavity, a lifting locking mechanism for tensioning the pushing plate and the filter plate when the pushing plate and the filter plate are combined is further arranged above and/or below the pushing device. The lifting locking mechanism comprises a lifting cylinder group; h-shaped fixed blocks are arranged between the lifting cylinder group and the pushing plate and between the lifting cylinder group and the filter plate group. The H-shaped fixing block comprises a transverse connecting rod arranged along the axial direction of the pushing plate and the filtering plate group, and a pushing plate limiting end and a pressure stopping plate limiting end which are respectively positioned at two ends of the transverse connecting rod. The thrust plate frame is provided with a first positioning groove, and the thrust plate positioning frame is provided with a second positioning groove; the length of the pressure-stopping plate limiting end is greater than the inner diameter of the first positioning groove, the length of the pressure-pushing plate limiting end is greater than the inner diameter of the second positioning groove, and the inner diameters of the first positioning groove and the second positioning groove are both smaller than the diameter of the cross connecting rod. The output rods of the lifting cylinder group are connected to the transverse connecting rods, and the transverse connecting rods of the fixing blocks can simultaneously extend into or leave the first positioning grooves and the second positioning grooves along with the driving of the lifting cylinder group. When the transverse connecting rod simultaneously stretches into the first positioning groove and the second positioning groove, the pressure plate limiting end is located on the outer side of the first positioning groove and used for limiting the movement of the pressure plate, and the pushing plate limiting end is located on the outer side of the second positioning groove and used for limiting the movement of the pushing plate.
In order to ensure that the push plate keeps a vertical state in the translation process and can be accurately combined with the filter plate group, the push device is also provided with a guide rail for guiding the moving direction of the push plate, and the push plate positioning frame is provided with a pulley capable of sliding along the guide rail.
Furthermore, in order to conveniently and quickly realize the opening and closing between the first membrane filter plate and the pressure stop plate and/or the second membrane filter plate, each filter plate group is also provided with a plate pulling mechanism for driving the first membrane filter plate and/or the second membrane filter plate to reciprocate along the beam component.
The pulling plate mechanism can be realized in various modes, and two structures of the pulling plate mechanism are preferably introduced. One is as follows: the plate pulling mechanism comprises an air cylinder, and a pushing block is connected to an output rod of the air cylinder; the pushing block can be driven by the cylinder to horizontally reciprocate along the cross beam assembly and can push and pull the first membrane filter plate and/or the second membrane filter plate in the moving process. The second is that: the filter plate can be realized by adopting a movable mechanical baffle arm, namely, pull plate slide rails are arranged on two sides of the filter plate group, and the pull plate mechanism is a mechanical baffle arm which can move back and forth along the pull plate slide rails; the plate pulling mechanism comprises a shell, a left baffle arm, a right baffle arm and a traveling pulley; the traveling pulley is arranged below the shell; the left retaining arm and the right retaining arm are respectively arranged in the shell through rotating shafts and can respectively rotate around the rotating shafts, and retaining arm limiting blocks are respectively arranged on the outer sides of the left retaining arm and the right retaining arm; the left blocking arm and the right blocking arm can independently rotate and extend out of the upper part of the bottom plate or retract into the shell; when the left baffle arm and the right baffle arm extend out of the upper part of the bottom plate, the left baffle arm and the right baffle arm can be contacted with the first diaphragm filter plate and/or the second diaphragm filter plate, so that the first diaphragm filter plate and/or the second diaphragm filter plate can be pushed and pulled to move in a translation manner.
Furthermore, the membrane filter press of the present invention can be designed to have 4 or 6 working positions.
The 4 stations are designed as follows: 4 plate group fixing frames and 4 filter plate groups are arranged on the rotary frame along the circumferential direction, and the 4 filter plate groups are arranged on the 4 plate group fixing frames in a one-to-one correspondence manner; wherein, the 4 groups of filter plate groups are preferably equally arranged along the circumferential direction of the upper edge of the rotary frame. The outside of the rotating frame is provided with 1 group of pushing devices. The outside of rotating frame is divided into 4 regions, and 4 regional distributions correspond with the position one-to-one of 4 filter plate groups, and 4 regions are automatic membrane closing area, grout filter-pressing area, division membrane unloading area and self-cleaning area in proper order. The automatic membrane combination area is used for combining the first membrane filter plate and/or the second membrane filter plate in the filter plate group in the area of the automatic membrane combination area towards the pressure stop plate to form a filter cavity. The grouting filter-pressing area is used for pouring slurry to be treated into the filter cavity of the combined filter plate group for filter pressing, wherein the 1 group of pushing devices are arranged in the grouting filter-pressing area. And a discharging device is also arranged in the film opening and discharging area and used for discharging the filter plate formed after filter pressing. And the automatic cleaning area is also provided with a cleaning device for cleaning the discharged filter plate group.
The vertical rotary multi-membrane filter press with 4 stations can realize synchronous operation of 4 working procedures, improve the filter pressing efficiency and save the occupied area of equipment.
The 6 stations are designed as follows: the rotating frame is circumferentially provided with 6 plate group fixing frames and 6 filter plate groups, and the 6 filter plate groups are correspondingly arranged on the 6 plate group fixing frames one by one; wherein, 6 groups of filter plate groups are preferably equally arranged along the circumferential direction of the upper edge of the rotary frame. The outside of the rotating frame is provided with 2 groups of pushing devices. The outside of rotating frame is divided into 6 regions, and 6 regional distributions and 6 position one-to-one of organizing the filter plate group, and 6 regions are first grout filter-pressing district, first division membrane district of unloading, first self-cleaning district, second grout filter-pressing district, second division membrane district of unloading, second self-cleaning district in proper order.
And the first grouting filter pressing area and the second grouting filter pressing area are used for combining the filter plates to form a filter cavity, and grouting slurry to be treated into the filter cavity for filter pressing, wherein the 2 groups of pushing devices are respectively arranged in the first grouting filter pressing area and the second grouting filter pressing area. And the first film opening and discharging area and the second film opening and discharging area are respectively provided with a discharging device for discharging the filter plate formed after filter pressing. And the first automatic cleaning area and the second automatic cleaning area are also respectively provided with a cleaning device for cleaning the filter plate group after unloading.
The vertical rotary multiplex membrane filter press designed in 6 stations is substantially divided into two groups of working groups which are executed synchronously, wherein a first grouting press filtration area, a first membrane opening unloading area and a first automatic cleaning area form one group, and a second grouting press filtration area, a second membrane opening unloading area and a second automatic cleaning area form the other group; the structure can realize synchronous operation of 6 stations, and two groups of working groups synchronously realize filter pressing, discharging and cleaning. The 6-station design works at twice or more the efficiency of the 4-station design with the same throughput of filter plate sets.
The utility model provides a vertical rotatory multiplex diaphragm filter press is not limited to the design of above-mentioned 4 stations and 6 stations. Can be at least double stations, namely a filter pressing station and a discharging and cleaning station; or a plurality of stations can lead the filter pressing flow to be more refined. Furthermore, a plurality of filter plate groups can exist in one station at the same time, so that the treatment capacity is increased.
Preferably, the discharging device comprises a scraping cylinder, the output end of the scraping cylinder is connected with a scraping plate, and the scraping plate can be driven by the scraping cylinder to make reciprocating translation on the surface of the filter plate group. Furthermore, a vibrator can be connected to the filter plate group for assisting in vibrating and discharging.
Preferably, the cleaning device comprises a spray head, a spray head driving cylinder and a cleaning pump; the cleaning pump is connected with the input end of the spray head through a pipeline and is used for pumping high-pressure cleaning water or gas; the spray head is rotatably arranged on an output rod of the spray head driving cylinder, and the spray head can be driven by the spray head driving cylinder to reciprocate and translate on the surface of the filter plate group.
The utility model discloses a first diaphragm filter plate or second diaphragm filter plate, the preferred length of side is 63 cm's square board, also can be the square board that the length of side is 63 ~ 200 cm.
The utility model provides a vertical rotatory multistation membrane filter press's technical advantage is:
(1) the whole machine has low manufacturing cost and high processing efficiency. The traditional membrane filter press adopts a membrane filter press plate with the length of 2 meters, so that 20 tons of slurry can be filtered and pressed per hour, the length of the whole machine needs to reach 15 meters, a plurality of membrane filter press plates need to be added, the occupied area is large, the cost is high, and the operation speed is slow. The vertical rotary multi-station membrane filter press provided by the scheme adopts the design of 6 stations, 1 meter long membrane filter plate and 1-2 membrane filter plates arranged at each station, so that the treatment efficiency of filter pressing of 35-45 tons of slurry per hour can be realized. Compare traditional pressure filter, the vertical rotatory multistation diaphragm pressure filter that this scheme provided, area is littleer, the treatment effeciency is higher, moreover through multistation synchronous operation, has realized saving process time's efficiency.
(2) The vertical rotary multi-station membrane filter press provided by the scheme simplifies the arrangement of pipelines, and because the number of membrane filter plates of each station is reduced, the power and the power consumption of a pushing oil cylinder can be greatly reduced, the energy is saved, and the use cost is lower; and the water content of the filter cake can be ensured to be lower than 20% under the condition of low power consumption, and the filter pressing efficiency is high.
(3) The vertical rotary multi-station membrane filter press provided by the scheme adopts automatic control flow processing, adopts a rotary encoder or a servo motor to control and realize the accurate rotation of the rotary frame, and has the advantages of high overall working precision, easy control and convenient maintenance.
Drawings
FIG. 1 is a schematic diagram of a membrane filter press according to the prior art;
FIG. 2 is a side sectional view of the vertical rotary 4-station membrane filter press of example 1;
FIG. 3 is a partial top view structural view of the vertical rotary 4-station membrane filter press of example 1;
fig. 4(a) is a cross-sectional view of a first membrane filter plate of example 1; fig. 4(b) is a cross-sectional view of a second membrane filter plate of example 1;
FIG. 5 is a schematic view in partial cross-section of a collection of filter plates according to example 1;
FIG. 6 is a side sectional view of the vertical rotary 6-station membrane filter press of example 2;
FIG. 7 is a cross-sectional view A-A of FIG. 6;
FIG. 8 is a cross-sectional view B-B of FIG. 6;
FIG. 9 is a cross-sectional view C-C of FIG. 6;
reference numerals: 1-a main frame; 11-a rotating gantry; 12-a bearing; 13-a rotary drive motor; 14-a drive gear set; 15-plate group fixing frame; 151-thrust plate frame; 152-a beam assembly; 153-first detent; 2-a filter plate group; 21-pressure stop plate; 211-water outlet of pressure stop plate; 212-stop plate feed hole; 213-one-way check valve; 214-stop plate concave surface; 215-a third elastic membrane; 216-a third diaphragm chamber; 22-a first membrane filter plate; 221-a first filter plate concave surface; 222-a first filter plate feed hole; 223-water outlet of the first filter plate; 224-a first elastic membrane; 225-a first diaphragm chamber; 23-a second membrane filter plate; 231-concave surface of second filter plate; 232-first filter plate inlet hole; 233-water outlet of the second filter plate; 234-a second elastic membrane; 235-a second diaphragm chamber; 24-a filter chamber; 3-a pushing device; 31-oil cylinder; 32-pusher plate positioning rack; 321-a second positioning groove; 33-a push plate; 34-a guide rail; 35-a pulley; 36-a pulp conveying pipe; 4-a lifting locking mechanism; 41-lifting cylinder group; 42-fixed block; 421-a transverse connecting rod; 422-the limit end of the push plate; 423-stop plate limiting end; 5-a plate pulling mechanism; 51-a cylinder; 52-a pushing block; 61-a first filter cloth; 611-a first filter cloth feed aperture; 62-a second filter cloth; 621-second filter cloth feed hole; 63-a third filter cloth; 631-third filter cloth feed hole; 71-automatic membrane closing region; 72-grouting press filtration zone; 73-a film opening and discharging area; 74-self-cleaning zone; 8-a discharge device; 81-scraping cylinder; 82-scraping plate; 9-a cleaning device; 91 a spray head; 92-a spray head driving cylinder; 101-a first grouting filter press zone; 102-a first open film discharge zone; 103-a first self-cleaning zone; 104-a second grouting press filtration zone; 105-a second open film discharge zone; 106-second self-cleaning zone.
Detailed Description
The technical solution of the present invention is further explained below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the solution of the following embodiments, and the technical solution of the equivalent technical means provided by the present invention also belongs to the protection scope of the present invention.
Example 1
As shown in fig. 2 to 3, a vertical rotary 4-station membrane filter press comprises:
The rotating frame 11 is provided with 4 plate group fixing frames 15 and 4 filter plate groups 2 equally along the circumferential direction, the 4 filter plate groups 2 are correspondingly arranged on the 4 plate group fixing frames 15, and the 4 filter plate groups can sequentially move along with the rotation of the rotating frame 11. Each of the plate group holders 15 includes a thrust plate bracket 151 fixed to the rotary frame 11, and a cross member assembly 152 connected to an outer side of the thrust plate bracket 151.
Each filter plate group 2 comprises a pressure stop plate 21, a first membrane filter plate 22 and at least one second membrane filter plate 23 located between the pressure stop plate 21 and the first membrane filter plate 22. The pressure stop plate 21 is fixedly mounted on the thrust plate frame 151; the first 22 and second 23 membrane filter plates are each vertically mounted on the cross-beam assembly 152 and are horizontally reciprocable along the cross-beam assembly 152. Each filter plate group 2 is also provided with a plate pulling mechanism 5 for driving the first membrane filter plate 22 and the second membrane filter plate 23 to reciprocate along the beam assembly 152. The pulling plate mechanism 5 comprises an air cylinder 51, and a pushing block 52 is connected to an output rod of the air cylinder 51; the pushing block 52 can be driven by the air cylinder 51 to horizontally reciprocate along the cross beam assembly 152 and can realize the pushing and pulling of the first membrane filter plate 22 and the second membrane filter plate 23 during the movement.
The outer side of the rotating frame 11 is provided with 1 group of pushing devices 3. The pushing device 3 comprises an oil cylinder 31, a pushing plate positioning frame 32 is connected to an output rod of the oil cylinder 31, a vertically arranged pushing plate 33 is fixed on the pushing plate positioning frame 32, and the pushing plate 33 can be driven by the oil cylinder 31 to extend and retract to reciprocate towards the direction of the rotating rack 11. The pushing device 3 is further provided with a guide rail 34 for guiding the moving direction of the pushing plate 33, and the bottom of the pushing plate positioning frame 32 is provided with a pulley 35 slidable along the guide rail 34.
Lifting locking mechanisms 4 are respectively arranged above and below the pushing device. The lifting locking mechanism 4 comprises a lifting cylinder group 41, and an H-shaped fixing block 42 is arranged between the lifting cylinder group 4 and the pushing plate 33 and the filter plate group 2. The H-like fixing block 42 includes a transverse link 421 extending along the axial direction of the push plate 33 and the filter plate group 2, and a push plate limit end 422 and a pressure stop plate limit end 423 respectively located at two ends of the transverse link 421. The thrust plate frame 151 is provided with a first positioning groove 153, and the thrust plate positioning frame 32 is provided with a second positioning groove 321; the length of the pressure-stop plate-limiting end 423 is greater than the inner diameter of the first positioning groove 153, the length of the pressure-push plate-limiting end 422 is greater than the inner diameter of the second positioning groove 321, and the inner diameters of the first positioning groove 153 and the second positioning groove 321 are both smaller than the diameter of the cross-connecting rod 421. The output rods of the lifting cylinder group 41 are all connected to the transverse connecting rod 421, and the fixing block 42 can make the transverse connecting rod 421 simultaneously extend into or leave the first positioning groove 153 and the second positioning groove 321 along with the driving of the lifting cylinder group 41.
As shown in fig. 4(a), the first membrane filter sheet 22 has a first sheet concave surface 221 formed by recessing the middle portion of the surface of the first membrane filter sheet facing the pressure stop plate 21 inward with respect to the periphery thereof. The first membrane filter plate 22 is further provided with a first filter plate inlet hole 222 and a first filter plate outlet hole 223 which are respectively communicated with the concave surface 221 of the first filter plate and the outside. A plurality of filter pores are formed in the first membrane filter plate 22, a first elastic membrane 224 which is waterproof and is impermeable to water vapor is further arranged on the surface of the concave surface 221 of the first filter plate, a first membrane cavity 225 is formed between the first elastic membrane 224 and the concave surface 221 of the first filter plate, and the first membrane cavity 225 is communicated with the plurality of filter pores. On the surface of the concave surface 221 of the first filter plate, a first filter cloth 61 is further provided. The first filter cloth 61 is provided with a first filter cloth feeding hole 611, and the position of the first filter cloth feeding hole 611 corresponds to and is communicated with the position of the first filter plate feeding hole 222. The first filter plate water outlet 223 is communicated with an external water outlet conduit.
As shown in fig. 4(b), the second membrane filter plate 23 has a concave surface 231 formed on both side surfaces thereof facing the pressure stop plate 21 and the first membrane filter plate 22, respectively, and the middle portion thereof is recessed inward with respect to the periphery thereof. The second membrane filter plate 23 is also provided with a second filter plate inlet hole 232 and a second filter plate outlet hole 233 which communicate the second filter plate concave surface 231 with the outside, respectively. A plurality of filter pores are formed in the second membrane filter plate 23, a second elastic membrane 234 which is waterproof and is permeable to water vapor is further arranged on the surface of the concave 231 of the second filter plate, a second membrane cavity 235 is formed between the second elastic membrane 234 and the concave 231 of the second filter plate, and the second membrane cavity 235 is communicated with the plurality of filter pores. On the surface of the concave surface 221 of the second filter plate, a second filter cloth 62 is further provided. The second filter cloth 62 is provided with a second filter cloth feeding hole 621, and the position of the second filter cloth feeding hole 621 corresponds to and is communicated with the position of the second filter plate feeding hole 232. The second filter plate outlet 233 is communicated with an external water outlet conduit.
As shown in fig. 5, the pressure stop plate 21 is provided with a pressure stop plate water outlet 211 and a pressure stop plate feed hole 212, and a one-way check valve is arranged in the pressure stop plate feed hole 212 for limiting the outflow of slurry and communicating with an external air pipe for back blowing the slurry. The pressure stopper plate 21 is formed on the side surface facing the second membrane filter plate 23 with a middle portion thereof recessed inward with respect to the periphery thereof to form a pressure stopper plate concave surface 214. The concave surface 214 of the pressure stop plate is covered with a third elastic diaphragm 215, and the periphery of the third elastic diaphragm 215 is tightly attached to the concave surface 214 of the pressure stop plate to form a third diaphragm cavity 216. The surface of the concave surface 214 of the pressure stop plate is provided with a third filter cloth 63, the third filter cloth 63 is provided with a third filter cloth feeding hole 631, and the position of the third filter cloth feeding hole 631 corresponds to and is communicated with the position of the pressure stop plate feeding hole 212. The pressure stop plate water outlet hole 212 is communicated with an external water outlet conduit.
The pushing plate 33 is a solid plate, a pushing plate feeding hole is formed in the pushing plate 33, the pushing plate feeding hole corresponds to and is communicated with the first filter cloth feeding hole 222, and a pulp conveying pipe 36 communicated with the pushing plate feeding hole is formed in the pushing plate 33.
The outer side of the rotating frame 11 is also provided with 1 group of discharging devices and 1 group of cleaning devices 9.
As shown in fig. 1, the cleaning device 9 includes a nozzle 91, a nozzle driving cylinder 92, and a cleaning pump. The cleaning pump is connected with the input end of the nozzle 91 through a pipeline, and the cleaning pump is used for pumping high-pressure cleaning water or gas. The spray heads 91 are rotatably mounted on the output rods of the spray head driving cylinders 92, and the spray heads 91 can be driven by the spray head driving cylinders 92 to perform reciprocating translation on the surface of the filter plate group 2.
In the embodiment, the outer side of the rotating frame 11 is equally divided into 4 station areas, and the 4 station areas are an automatic film closing area 71, a grouting and filtering area 72, a film opening and discharging area 73 and an automatic cleaning area 74 in sequence. The 4 area distributions are in one-to-one correspondence with the positions of the 4 groups of filter plates. During operation, 4 groups of filter plate groups are synchronously executed, then synchronously rotate along with the rotating rack 11, and enter the next station for operation. The specific working process of each station is as follows:
(1) when the filter plate group 2 is located in the automatic membrane combination area 71, the plate pulling mechanism 5 is activated to combine the first membrane filter plate 22 and the second membrane filter plate 23 in the filter plate group 2 in the direction of the pressure stop plate 21.
(2) Then the filter plate group 2 rotates from the automatic membrane combining area 71 to the grouting press filtration area 72, the pressing device 3 is started, and the oil cylinder 31 pushes the pressing plate 33 to be combined with the filter plate group 2. The lifting locking mechanism 4 is started to extend the transverse connecting rod 421 of the fixing block 42 into the first positioning groove 153 and the second positioning groove 321, and the pressure-stop plate limiting end 432 and the pushing plate limiting end 422 are respectively positioned outside the first positioning groove 153 and the second positioning groove 321 to lock the pushing plate 33 and the filter plate group 2. At this time, the push plate 33, the first membrane filter plate 22, the second membrane filter plate 23, and the pressure stop plate 21 are combined in sequence, and a filter chamber 24 is formed between adjacent filter cloths. Pumping slurry to be filtered into the filter cavity 24 through the slurry conveying pipe 36, wherein the slurry is increased in pressure in a limited space, so that liquid in the slurry is forced to enter the water outlet holes of the first filter plate, the second filter plate and the pressure stop plate through the filter cloth and is discharged; the filter residue is retained in the filter chamber to form a filter cake. Then high-pressure water or high-pressure gas is reversely filled into the water outlet holes of the first filter plate, the second filter plate and the pressure stop plate, so that the volumes of the first diaphragm cavity 225, the second diaphragm cavity 235 and the third diaphragm cavity 216 are increased, the filter cloth is pressed, the filter cavity 24 is pressed again, and secondary filter pressing is realized. The water content of the filter cake after the secondary filter pressing can be as low as 25 percent or less.
(3) The lifting locking mechanism 4 recovers the national fixed block 42, the push plate 33 leaves the filter plate group 2, the filter plate group 2 rotates from the grouting and press filtering area 72 to the membrane opening and discharging area 73, the plate pulling mechanism 5 is started to separate the first diaphragm filter plate 22, the second diaphragm filter plate 23 and the pressure stopping plate 21, and the discharging device is started to scrape off filter cakes/filter residues on the surface of the filter cloth.
(4) The filter plate group 2 rotates from the membrane opening and discharging area 73 to the automatic cleaning area 74, and the cleaning device 9 is started to clean filter residues which are difficult to scrape off on the filter cloth.
Example 2
This example differs from example 1 in that:
the rotating frame 11 is provided with 6 plate group fixing frames 15 and 6 filter plate groups 2 along the circumferential direction at equal intervals, the 6 filter plate groups 2 are correspondingly arranged on the 6 plate group fixing frames 15, and the 6 filter plate groups can sequentially move along with the rotation of the rotating frame 11.
As shown in fig. 7, in this embodiment, the outer side of the rotating frame 11 is equally divided into 6 station areas, and the 6 areas are a first grouting press filtration area 101, a first membrane opening discharge area 102, a first self-cleaning area 103, a second grouting press filtration area 104, a second membrane opening discharge area 105, and a second self-cleaning area 106 in sequence. The 6 area distributions are in one-to-one correspondence with the positions of the 6 groups of filter plates.
The first grouting press filtration area 101 and the second grouting press filtration area 104 are provided with a pushing device 3 and a lifting locking mechanism 4. When the filter plate group 2 rotates to the first grouting press filtration area 101 or the second grouting press filtration area 104, the plate pulling mechanism 5 firstly combines the first diaphragm filter plate 22 and the second diaphragm filter plate 23 in the filter plate group 2 towards the direction of the pressure stop plate 21; then the pushing device 3 is started to push the pushing plate 33 to be combined with the filter plate group 2 and form the filter cavity 24; the lifting locking mechanism 4 is started to lock the pushing plate 33 and the filter plate group 2; and starting to input the slurry to be filter-pressed. After entering the filter cavity 24, the slurry first realizes primary filter pressing due to the self pressure, and then back-flushes high-pressure water or gas into the first diaphragm cavity 225, the second diaphragm cavity 235 and the third diaphragm cavity 216, so that the filter cavity 24 is squeezed again, and secondary filter pressing is realized.
In the first film opening and discharging area 102 and the second film opening and discharging area 105, a discharging device 8 is provided. The discharging device 8 comprises a scraping cylinder 81, the output end of the scraping cylinder 81 is connected with a scraping plate 82, and the scraping plate 82 can be driven by the scraping cylinder 81 to make reciprocating translation on the surface of the filter plate group 2. The filter plate group 2 rotates to the first membrane opening and discharging area 102 or the second membrane opening and discharging area 105, the plate pulling mechanism 5 is started, the first membrane filter plate 22, the second membrane filter plate 23 and the pressure stop plate 21 are separated, the discharging device 8 is started, and filter cakes/filter residues on the surface of the filter cloth are scraped off.
In each of the first and second automatic cleaning sections 103 and 106, a cleaning device 9 is provided. The cleaning device 9 includes a head 91, a head driving cylinder 92, and a cleaning pump. The cleaning pump is connected with the input end of the nozzle 91 through a pipeline, and the cleaning pump is used for pumping high-pressure cleaning water or gas. The spray heads 91 are rotatably mounted on the output rods of the spray head driving cylinders 92, and the spray heads 91 can be driven by the spray head driving cylinders 92 to perform reciprocating translation on the surface of the filter plate group 2. The filter plate group 2 enters the first automatic cleaning area 103 or the second automatic cleaning area 106, and the cleaning device 9 is started to clean filter residues which are difficult to scrape off on the filter cloth.
During operation, 6 groups of filter plate groups are synchronously executed, then synchronously rotate along with the rotating rack 11, and enter the next station for operation.
Claims (10)
1. Vertical rotatory multistation membrane pressure filter, including the main frame, its characterized in that: the main frame is at least provided with a rotating frame, a plurality of groups of filter plate groups and at least 1 group of pushing devices;
the rotating rack is horizontally connected to the main rack through a bearing and can rotate along the axis of the bearing; a plurality of plate group fixing frames are arranged on the rotating rack along the circumferential direction; the groups of filter plate groups are correspondingly arranged on the plate group fixing frames one by one; the plurality of groups of filter plate groups can move along with the rotation of the rotary frame; each plate group fixing frame comprises a thrust plate frame fixed on the rotating rack and a cross beam assembly connected to the outer side of the thrust plate frame; each group of filter plate groups at least comprises a pressure stop plate and a first diaphragm filter plate, and filter cloth is respectively arranged on the surfaces of the opposite sides of the pressure stop plate and the first diaphragm filter plate; the pressure stop plate is fixedly arranged on the thrust plate frame; the first diaphragm filter plate is mounted on the beam assembly and can horizontally reciprocate along the beam assembly;
the middle part of the first diaphragm filter plate at least on one side surface facing the pressure stop plate is inwards sunken relative to the periphery of the first diaphragm filter plate to form a first filter plate concave surface; the first diaphragm filter plate is also provided with a first filter plate feeding hole and a first filter plate water outlet hole which are communicated with the concave surface of the first filter plate and the outside;
the at least 1 group of pushing devices are arranged on the outer side of the rotating rack and comprise oil cylinders, pushing plate positioning frames are connected to output rods of the oil cylinders, and vertically arranged pushing plates are fixed on the pushing plate positioning frames; the pushing plate can be driven by the oil cylinder to stretch and reciprocate in the direction of the rotating rack; when the push plate translates towards the direction close to the rotary frame, the push plate can be pressed against the filter plate group corresponding to the position of the push plate, so that the push plate, the first diaphragm filter plate and the pressure stop plate are in parallel in sequence, and a filter cavity is formed between the filter cloth; the first filter plate feeding hole and the first filter plate water outlet hole are communicated with the filter cavity.
2. The vertical rotary multi-station membrane filter press according to claim 1, wherein: in each group of filter plate groups, a second diaphragm filter plate is arranged between the pressure stop plate and the first diaphragm filter plate; the second diaphragm filter plate faces the pressure stop plate and two side surfaces of the first diaphragm filter plate respectively, and the middle part of the second diaphragm filter plate is inwards sunken relative to the periphery of the second diaphragm filter plate to form a concave surface of the second diaphragm filter plate; the second diaphragm filter plate is also provided with a second filter plate feeding hole and a second filter plate water outlet hole which are communicated with the concave surface of the second filter plate and the outside; moreover, the second diaphragm filter plate is also provided with filter cloth on two side surfaces facing the pressure stop plate and the first diaphragm filter plate respectively; when the push plate translates towards the direction close to the rotary frame, the push plate, the first diaphragm filter plate, the second diaphragm filter plate and the pressure stop plate are in parallel in sequence, and a filter cavity is formed between every two adjacent filter cloth; the first filter plate feeding hole, the first filter plate water outlet hole, the second filter plate feeding hole and the second filter plate water outlet hole are communicated with the filter cavity.
3. The vertical rotary multi-station membrane filter press according to claim 1, wherein: the first diaphragm filter plate is characterized in that a first elastic diaphragm is further arranged on the concave surface of the first filter plate, and the periphery of the first elastic diaphragm is tightly attached to the concave surface of the first filter plate to form a first diaphragm cavity.
4. The vertical rotary multi-station membrane filter press according to claim 2, wherein: and the peripheries of the second elastic diaphragms are tightly attached to the concave surfaces of the second filter plates to form second diaphragm cavities.
5. The vertical rotary multi-station membrane filter press according to claim 1, wherein: a lifting locking mechanism used for tensioning the pushing plate and the filter plate when the pushing plate and the filter plate are combined is further arranged above and/or below the pushing device; the lifting locking mechanism comprises a lifting cylinder group; h-shaped fixing blocks are further arranged among the lifting cylinder group, the pushing plate and the filter plate group; the fixed block comprises a transverse connecting rod arranged along the axial direction of the pushing plate and the filtering plate group, and a pushing plate limiting end and a pressure stopping plate limiting end which are respectively positioned at two ends of the transverse connecting rod;
the thrust plate frame is provided with a first positioning groove, and the thrust plate positioning frame is provided with a second positioning groove; the length of the limiting end of the pressure stop plate is greater than the inner diameter of the first positioning groove, and the length of the limiting end of the push plate is greater than the inner diameter of the second positioning groove; the inner diameter of the first positioning groove and the inner diameter of the second positioning groove are both smaller than the diameter of the transverse connecting rod; the output rods of the lifting cylinder group are connected to the transverse connecting rods, and the transverse connecting rods of the fixing blocks can simultaneously extend into or leave the first positioning grooves and the second positioning grooves along with the driving of the lifting cylinder group; when the transverse connecting rod simultaneously stretches into the first positioning groove and the second positioning groove, the pressure plate limiting end is located on the outer side of the first positioning groove and used for limiting the movement of the pressure plate, and the pushing plate limiting end is located on the outer side of the second positioning groove and used for limiting the movement of the pushing plate.
6. The vertical rotary multi-station membrane filter press according to claim 1, wherein: the water outlet hole and the feed hole of the pressure stop plate are respectively communicated with the filter cavity; a one-way check valve is arranged in the pressure stop plate feeding hole; the middle part of the pressure stop plate is inwards recessed relative to the periphery of the pressure stop plate to form a concave surface of the pressure stop plate; and a third elastic diaphragm is covered on the concave surface of the pressure stop plate, and the periphery of the third elastic diaphragm is tightly attached to the concave surface of the pressure stop plate to form a third diaphragm cavity.
7. The vertical rotary multi-station membrane filter press according to claim 1, wherein: the push plate is a water-tight solid plate; and the pushing plate is provided with a pushing plate feeding hole, and the pushing plate feeding hole corresponds to the first filter plate feeding hole in position.
8. The vertical rotary multi-station membrane filter press according to claim 1, wherein: and each filter plate group is also provided with a plate pulling mechanism for driving the first membrane filter plate and/or the second membrane filter plate to reciprocate along the beam assembly.
9. The vertical rotary multi-station membrane filter press according to claim 1, wherein: the rotating rack is circumferentially provided with 4 plate group fixing frames and 4 filter plate groups, and the 4 filter plate groups are arranged on the 4 plate group fixing frames in a one-to-one correspondence manner; the outer side of the rotating frame is provided with 1 group of pushing devices; the outer side of the rotary frame is divided into 4 areas, the 4 areas correspond to the positions of 4 groups of filter plate groups one by one, and the 4 areas are an automatic membrane closing area, a grouting and pressure filtering area, a membrane opening and unloading area and an automatic cleaning area in sequence; the 1 group of pushing devices are arranged in the grouting and filter pressing area; a discharging device is also arranged in the film opening and discharging area;
the automatic membrane combination area is used for combining the first membrane filter plate and/or the second membrane filter plate in the filter plate group in the area towards the pressure stop plate direction to form the filter cavity; the grouting and filter-pressing area is used for pouring slurry to be treated into the filter cavity of the combined filter plate group for filter pressing; and the membrane opening and discharging area is used for discharging the filter plate formed after filter pressing.
10. The vertical rotary multi-station membrane filter press according to claim 1, wherein: the rotating rack is circumferentially provided with 6 plate group fixing frames and 6 filter plate groups, and the 6 filter plate groups are arranged on the 6 plate group fixing frames in a one-to-one correspondence manner; the outer side of the rotating frame is provided with 2 groups of pushing devices; the outer side of the rotating frame is divided into 6 areas, the 6 areas are respectively in one-to-one correspondence with the positions of 6 groups of filter plate groups, and the 6 areas are a first grouting press filtration area, a first membrane opening unloading area, a first automatic cleaning area, a second grouting press filtration area, a second membrane opening unloading area and a second automatic cleaning area in sequence;
the first grouting filter pressing area and the second grouting filter pressing area are used for combining the filter plates to form a filter cavity, and grouting slurry to be treated into the filter cavity for filter pressing, and the 2 groups of pushing devices are respectively arranged in the first grouting filter pressing area and the second grouting filter pressing area; the first film opening and discharging area and the second film opening and discharging area are respectively provided with a discharging device for discharging the filter plate formed after filter pressing; and the first automatic cleaning area and the second automatic cleaning area are used for cleaning the discharged filter plate group.
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| CN202022139135.XU CN212262499U (en) | 2020-09-27 | 2020-09-27 | Vertical rotary multi-station diaphragm filter press |
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| CN202022139135.XU CN212262499U (en) | 2020-09-27 | 2020-09-27 | Vertical rotary multi-station diaphragm filter press |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112873622A (en) * | 2021-02-07 | 2021-06-01 | 常州都铂高分子有限公司 | Degradable hot melt pressure sensitive adhesive produces filter equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112873622A (en) * | 2021-02-07 | 2021-06-01 | 常州都铂高分子有限公司 | Degradable hot melt pressure sensitive adhesive produces filter equipment |
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