CN211987279U

CN211987279U - Plate and frame filter press

Info

Publication number: CN211987279U
Application number: CN202020530149.1U
Authority: CN
Inventors: 张居亮; 朱丹; 李宪勇; 张治军; 殷培博; 许天朋; 郭建平
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2020-11-24
Anticipated expiration: 2030-04-13

Abstract

A plate-and-frame filter press belongs to the field of filter presses and comprises a cooling or heating device, a frame, a feed inlet, a thrust plate, a filter plate group, a girder, a pressing plate, a power cylinder, a turning plate driving device, a turning plate supporting device and a turning plate; the cooling or heating device is arranged near the frame and comprises a medium circulating device and a pipeline; the medium circulating device comprises a driving motor, a circulating pump and a medium storage device; the device has the characteristics of being capable of meeting different requirements of the temperature of the filtered material and reducing the damage of the turning plate and the turning plate supporting device.

Description

Plate and frame filter press

Technical Field

The invention belongs to the field of filter presses, and particularly relates to a plate-and-frame filter press.

Background

The filter press is a solid-liquid separation device which utilizes a filter medium and applies certain pressure to an object to dialyze liquid, a plate-frame filter press is a commonly used device at present, and generally, the plate-frame filter press comprises a frame, a filter plate group, a feeding pump, a liquid outlet and a liquid receiving turning plate; the filtered substance is injected into the filter plate group from a feed port at one end of the filter plate group through a feed pump, filtered by the filter plate group, and clear liquid flows out from the lower part of the filter plate group and can be applied or discharged after being collected; the filter plate group generally comprises a plurality of filter plates, a closed filter chamber is formed between adjacent filter plates, the filter plates are compressed and pressed externally for filtration, the structure and the working mechanism of the filter plates determine the quality of solid-liquid separation and the effective service life of the filter plates, most of the existing filter plates adopt feeding from the middle parts of the filter plates, the solid content of feed liquid is 20-45% under the general condition, the filter plates belong to viscous mixed liquid, the flow rate is low, the previous filter plates are filled with the filter plates firstly after entering the filter chambers, and the filter plates are pushed backwards block by block, so that the problem is caused that the filter plates cannot be used if the filter plates deform to the side with small internal pressure due to the increase of the internal pressure of the filter chambers filled with the material, particularly, for the feed liquid which can generate crystallization or solidification at normal temperature, the solid-liquid separation filtration cannot be carried out at normal temperature, only the material is heated, the filtration can be realized, and the filtration temperature required by some, the common filter plate can not work at all; the liquid receiving turning plate of the plate-frame type filter press is an important component of the plate-frame type filter press and is positioned below the filter plate group, when the filter press filters, liquid seeps out from the filter cloth due to the internal pressure of the filter press, and the liquid receiving turning plate is used for collecting and treating the seeped liquid; when the filter press filters, the turning plate is turned upwards to collect liquid seeped outside below the filter plate group, when the filter press unloads a filter cake, the turning plate is turned downwards to leave a falling space of the filter cake, so the liquid receiving turning plate is often turned upwards and downwards, the conventional turning plate generally adopts a tube-type slender rod as a turning plate rotating shaft to support and rotate the turning plate, the length-diameter ratio of the rod is generally 20-80, and the rod can droop under the combined action of self weight and load, so that the shaft head and the horizontal line change to cause the interference between the shaft head and a support for supporting the turning plate rotating shaft, and only the line contact or point contact is adopted, so that the turning plate rotating shaft and the support are extremely easy to wear and need to be replaced frequently, the shutdown time is long, and the; on the other hand, the liquid receiving turning plate of the plate-and-frame filter press carries out high-temperature filtration on the liquid which can be crystallized or solidified at normal temperature through humidification, and the liquid which seeps onto the liquid receiving turning plate can be crystallized or solidified, so that the turning plate is solidified more and more, and the damage probability of the turning plate is increased.

Disclosure of Invention

Aiming at the problems of the prior plate-and-frame filter press, the invention provides a plate-and-frame filter press, which is characterized in that: the device comprises a cooling or heating device, a frame, a feeding hole, a thrust plate, a filter plate group, a crossbeam, a pressing plate, a power cylinder, a turning plate driving device, a turning plate supporting device and a turning plate; the cooling or heating device is arranged near the frame and comprises a medium circulating device and a pipeline; the medium circulating device comprises a driving motor, a circulating pump and a medium storage device; the driving motor is arranged near the medium storage device, and a power output shaft of the driving motor is connected with a power input shaft of the circulating pump and can drive the circulating pump to run; the circuit part of the driving motor is connected with a control system of the plate-and-frame filter press; the circulating pump is arranged near the medium storage device, an inlet of the circulating pump is communicated with an inner cavity of the medium storage device and is immersed in the heating or cooling medium, and an outlet of the circulating pump is hermetically connected with an interface at one end of the pipeline and can output the heating or cooling medium into the pipeline; the medium storage device is arranged near the frame or connected with the frame and comprises a liquid storage tank, a liquid outlet, a liquid inlet and a heating device; the liquid storage tank is a closed cavity body with an opening, and a liquid medium is contained in an inner cavity of the liquid storage tank; the liquid outlet is hermetically connected with an inlet of the circulating pump; the liquid inlet is connected with one end of a pipeline; the heating device is arranged in the liquid storage tank and can heat the liquid medium in the liquid storage tank; the pipeline is arranged on the medium circulating device, is respectively connected with the medium circulating channels on the turning plate and the filter plate group and then returns to the medium circulating device to form a loop; the frame is arranged on the base and can support the girder, the power cylinder, the accessories and the control elements; the feed port is arranged at the end part of the thrust plate and is connected with a feed pump of the filtered material through a pipeline; the thrust plate is arranged on the rack and fixedly connected with the rack; the filter plate group is arranged on the girder and is erected on the girder in a floating way; the filter plate group consists of a plurality of filter plates, each filter plate is mutually attached, and a filter cavity is arranged between two filter plates; the crossbeam is arranged on the frame and is fixedly connected with the frame; the pressing plate is sleeved on the girder and can slide on the girder along the girder, and the area of the end face of the pressing plate is matched with that of the end face of the filter plate; the power oil cylinder is arranged on the frame, is positioned at one end of the crossbeam and is fixedly connected with the frame, and the end part of a piston rod of the power oil cylinder is connected with the pressing plate and can push the pressing plate to do linear motion; the turning plate driving device is arranged on the rack, is fixedly connected with the rack and comprises a driving element and a transmission device; the driving element is arranged on the frame and fixedly connected with the frame, and the power output part is connected with the transmission device; one end of the transmission device is connected with the driving element, and the other end of the transmission device is connected with a transmission wheel at the shaft end of the turning plate; the turning plate supporting device is arranged on the rack and is fixedly connected with the rack; the turnover plate supporting devices are positioned at two ends of each turnover plate shaft and can support the turnover plates and realize that the turnover plates rotate along the turnover plate shafts; the turning plate is arranged on the turning plate supporting device through a turning plate shaft on one side of the turning plate, is connected with the turning plate supporting device in a sleeved mode and can rotate in the turning plate supporting device, and a driving wheel is arranged at the end, located at the same end of the turning plate driving device, of the turning plate shaft and can rotate under the driving of the turning plate driving device.

Furthermore, the driving element in the flap driving device is a motor and reducer combination.

Furthermore, a transmission device in the flap driving device is in chain transmission.

Furthermore, the filter plate group is formed by combining feeding filter plates and non-feeding filter plates at intervals.

In order to overcome the problem that the bending deformation of a flap shaft causes the interference of the flap shaft and a flap supporting device due to the gravity of the flap in the conventional plate and frame filter press, so that the flap shaft and the flap supporting device are easily damaged, the invention provides the flap supporting device which is characterized in that: the turning plate supporting device comprises an installation support, an inner sliding ring and an outer sliding ring; the mounting support is arranged on the periphery of the outer sliding ring, and a fixed mounting structure connected with the frame is arranged on the periphery of the mounting support and is a step or a bulge with a bolt hole; the mounting support is provided with an outer sliding ring mounting hole, the diameter of the outer sliding ring mounting hole is matched with the outer diameter of the outer sliding ring, and the outer sliding ring can be fastened in the mounting hole; the outer slip ring is arranged in the mounting hole on the mounting support and is annular, the outer ring of the outer slip ring is matched with the mounting hole of the outer slip ring on the mounting support and can be fixedly connected with the mounting hole of the outer slip ring, the inner hole of the outer slip ring is a spherical hole, and the spherical radius of the inner slip ring is the same as the spherical surface radius of the outer diameter of the inner slip ring; the inner sliding ring is arranged in an inner hole of the outer sliding ring and is annular, and the inner hole of the inner sliding ring is a cylindrical hole, is matched with the shaft end of the flap shaft and can be fixedly connected with the flap shaft; the outer surface of the inner slip ring is an outward convex spherical surface, and the radius of the spherical surface is matched and attached with the inner hole spherical surface of the outer slip ring; the height of the inner hole of the outer sliding ring and the height of the outer spherical surface of the inner sliding ring are not more than 0.5 mm, so that the inner sliding ring is conveniently arranged in the outer sliding ring.

Further, the inner sliding ring and the outer sliding ring are both made of wear-resistant materials.

When the turnover plate type sliding mechanism works, the shaft end of the turnover plate shaft is arranged in an inner hole of the inner sliding ring and rotates together with the inner sliding ring, and the inner sliding ring and the outer sliding ring rotate in a sliding mode in the outer sliding ring; when the flap shaft deforms, the axis line of the inner sliding ring deflects along with the deformation of the flap shaft, and the contact surface of the inner sliding ring and the outer sliding ring is a spherical surface, so that the deflection of the inner sliding ring can be adapted, the normal rotation of the inner sliding ring in the outer sliding ring is not influenced, unnecessary abrasion is not increased, and the damage chances of the flap supporting device and the flap shaft are reduced.

In order to overcome the defects that the prior plate-and-frame filter press is deformed by a preceding stage filter plate of a filter plate group and the filtering efficiency is not high because the material is fed from the central part of the filter plate, the invention provides the filter plate group, which is characterized in that: comprises a feeding filter plate and a non-feeding filter plate; the feeding filter plates and the non-feeding filter plates are arranged in a crossed manner, the end faces of the filter plates are attached, and a filter cavity is formed between the two filter plates; the feeding filter plate comprises a filter plate body, a functional hole, a feeding hole, a side main feeding hole, a side feeding channel, a liquid seepage hole and a filter cavity; the filter plate body is a filter plate main body, is made of metal materials, is rectangular, and has the size matched with the space between the girders of the plate-and-frame filter press; the functional holes are arranged at the corners of the filter plate body and can be used as liquid outlet holes; more than one functional hole penetrates through the thickness of the filter plate body; the feeding holes are arranged on the filter plate body and are positioned at the same corners of the feeding holes on the main side; the feed hole penetrates through the thickness of the filter plate body and is communicated with the side feed channel and the filter cavity on the side surface of the filter plate body; the side main feeding hole is arranged at one corner of the filter plate body, penetrates through the thickness of the filter plate body and is vertical to the end face of the filter plate body; when a plurality of filter plate bodies are stacked together, the main side feeding holes on each filter plate are positioned at the same position on the filter plate body, and the main side feeding holes of the plurality of filter plates form a main feeding channel; the side feeding channel is arranged between the main side feeding hole and the feeding hole and communicated with the main side feeding hole and the feeding hole; the liquid seepage hole is arranged in the middle of the side surface of the filter plate body and penetrates through the thickness between the filter cavities on the two side surfaces of the filter plate body, and the end part of the liquid seepage hole is covered with a filter material in a filtering working state; the liquid seepage holes are uniformly distributed in the filter cavity; the filter cavity is arranged in the middle of two sides of the filter plate body and is a concave area; when the two filter plate bodies are jointed, the filter plate bodies and the filter cavity between the filter plate bodies form a cavity capable of containing the filtered materials.

Because the side main feeding holes are adopted, when a filtered material enters the filter plate group from the main feeding channel consisting of a plurality of main side feeding holes, the filtered material is distributed to the main side feeding holes on each feeding filter plate of the filter plate group from the main feeding channel under the action of pressure, then enters the side feeding channel, enters the feeding holes and finally enters the filter cavity, under the action of the pressure applied to the two ends of the filter plate group, the filtered material is extruded, liquid seeps out through the filter material through the seepage holes and flows out from the functional holes, dregs are left in the filter cavity, and when the filter plate group is pulled open, the dregs fall below the filter plate group; therefore, when the filtered materials enter the filter plate group, pressure concentration cannot be formed, and the filter plate cannot be deformed and damaged.

In order to overcome the problem that the filter plate needs to adapt to certain filter materials and needs a certain temperature, the invention provides a filter plate which is characterized in that: the filter plate comprises a filter plate body, a functional hole, a feed hole, a side main feed hole, a side feed channel and a filter cavity, and further comprises a right joint, a fluid medium channel and a left joint; the filter plate body is formed by welding metal materials, and the functional holes are arranged at the corners of the filter plate body and can be used as liquid outlet holes; more than one functional hole penetrates through the thickness of the filter plate body; the feeding holes are arranged on the filter plate body and are positioned at the same corners of the feeding holes on the main side; the feed hole penetrates through the thickness of the filter plate body and is communicated with the side feed channel and the filter cavity on the side surface of the filter plate body; the side main feeding hole is arranged at one corner of the filter plate body, penetrates through the thickness of the filter plate body and is vertical to the end face of the filter plate body; when a plurality of filter plate bodies are stacked together, the main side feeding holes on each filter plate are positioned at the same position on the filter plate body, and the main side feeding holes of the plurality of filter plates form a main feeding channel; the side feeding channel is arranged between the main side feeding hole and the feeding hole and communicated with the main side feeding hole and the feeding hole; the liquid seepage hole is arranged in the middle of the side surface of the filter plate body and penetrates through the thickness between the filter cavities on the two side surfaces of the filter plate body, and the end part of the liquid seepage hole is covered with a filter material in a filtering working state; the liquid seepage holes are uniformly distributed in the filter cavity; the filter cavity is arranged in the middle of two sides of the filter plate body and is a concave area; when the two filter plate bodies are attached, the filter plate bodies and the filter cavity between the filter plate bodies form a cavity capable of containing a filtered material; the right joint is arranged at the left outlet of the fluid medium channel and is hermetically connected with the fluid medium channel; the fluid medium channel is arranged in the filter plate body, is a metal pipe with good heat conductivity, or a hole or a closed groove, is in a bending trend, and is distributed over more than 50% of the area of the side surface of the filter plate body; the left joint is arranged at the left outlet of the fluid medium channel and is hermetically connected with the fluid medium channel.

When some materials to be filtered need to be heated and filtered, the left joint and the right joint of the filter plate are respectively connected in series in a pipeline of the cooling or heating device, a hot fluid medium is introduced when the materials need to be heated, and a low-temperature fluid medium is introduced when the materials need to be cooled, so that the heating or the cooling of the filter plate can be realized.

In order to overcome the defect that liquid is easy to condense on the turning plate at low temperature to cause excessive bearing and damage of the turning plate, the invention provides the turning plate of the filter press, which is characterized in that: the heat insulation plate comprises a turnover plate shaft, a lower interface, a turnover plate body, a turnover plate fluid channel, an upper interface, a heat insulation layer and a heat reflection layer; the turning plate shaft is arranged on the turning plate body and positioned at one side of the turning plate body, and shaft ends at two ends of the turning plate shaft are sleeved in the inner support ring of the turning plate support device and are connected with the inner support ring of the turning plate support device in a sleeved mode; the lower interface is arranged at one end of the turning plate fluid channel and is hermetically connected with the turning plate fluid channel; the turning plate body is arranged on the turning plate shaft, is fixedly connected with the turning plate shaft and is a wing-shaped plate; the turning plate fluid channel is arranged on the turning plate body, is fixedly connected with the turning plate body and is positioned on the back of the working surface of the turning plate body, and the passing area of the turning plate fluid channel can cover more than 50% of the area of the turning plate body; the turning plate fluid channel is made of a metal pipe with good heat conductivity; the upper interface is arranged at one end of the turning plate fluid channel and is hermetically connected with the turning plate fluid channel, and the upper interface and the lower interface are respectively positioned at two different ends of the turning plate fluid channel; the heat insulation layer is arranged on the turnover plate body, is positioned on the back of the working surface of the turnover plate body, is fixedly connected with the turnover plate body and is made of heat insulation materials; the heat reflection layer is arranged between the heat preservation layer and the turning plate fluid channel and is fixedly connected with the heat preservation layer and the turning plate fluid channel respectively.

The area of the turning plate through which the turning plate fluid channel passes can cover more than 50% of the working area of the turning plate, and the heating or cooling medium flowing through the turning plate fluid channel can heat or cool the turning plate body, so that different requirements of the filter medium on temperature can be met.

Advantageous effects

The filter press has the advantages that the adaptability of the filter press can be realized, different requirements of the filtered materials on temperature can be met, and energy sources can be fully utilized; the service life of the turnover plate is prolonged, and the maintenance frequency is reduced.

Drawings

FIG. 1 is a schematic view of the outline structure of the present invention

1. The device comprises a cooling or heating device, 2 a frame, 3 a feed inlet, 4 a thrust plate, 5 a filter plate group, 6 a crossbeam, 7 a pressure plate, 8 a power cylinder, 9 a turning plate driving device, 10 a turning plate supporting device and 11 a turning plate.

FIG. 2 is an end view of the present invention

2. The filter plate group is arranged on the frame, 5, the filter plate group is arranged on the frame, 6, the crossbeam is arranged on the crossbeam, 10, the turning plate supporting device is arranged on the turning plate, and 11, the turning plate is arranged on the turning plate.

FIG. 3 is a schematic diagram of a heating or cooling system of the present invention

5. The filter plate group, 11, the turning plate, 12, the medium circulating device and 13, the pipeline.

FIG. 4 is a schematic view of the structure of the flap supporting device of the present invention

10. The device comprises a flap supporting device, 11 flaps, 101 supports, 102 inner supporting rings and 103 outer supporting rings.

FIG. 5 is a side schematic view of the flap support

11. The device comprises a turning plate, 101, a support, 102, an inner support ring and 103, an outer support ring.

FIG. 6 is a schematic structural view of a side-entry filter plate in a filter plate

51. Filter plate body, 52 functional holes, 53 feeding holes in the prior art, 54 feeding holes, 55 side main feeding holes, 56 side feeding channels, 57 weep holes, 58 filter chamber.

FIG. 7 is a schematic view of a combined feed filter plate and non-feed filter plate

51. Filter plate body, 56 side feed channel, 511 non-feed filter plate, 500 filter chamber.

FIG. 8 is a schematic view showing the structure of a filter sheet having a cooling or heating function

51. The filter plate comprises a filter plate body, 52 filtrate outlet holes, 55 side main feed holes, 59 right joints, 501 fluid medium channels, 502 weep holes and 503 left joints.

FIG. 9 is a side sectional view of FIG. 8

51. Filter plate body, 59 right connector, 501 fluid medium channel.

FIG. 10 is a schematic view of the structure of the turning plate

111. The hydraulic control system comprises a flap shaft, 112 a lower port, 113 a flap body, 114 a flap fluid channel and 115 an upper port.

FIG. 11 is a cross-sectional view of the flap

111. The heat-insulation plate comprises a flap shaft, 112 a lower interface, 113 a flap body, 114 a flap fluid channel, 115 an upper interface, 116 an insulation layer, 117 a heat-reflection layer.

Detailed Description

To further illustrate the technical solution of the present invention, the following description will be made with reference to the accompanying drawings, as shown in fig. 10 and 11, in this example, a flap body of a liquid receiving flap of a plate and frame filter press commonly used in the industry is adopted, and flap shafts are respectively used as a flap body 113 and a flap shaft 111 of this example; fixedly connecting the turnover plate shaft 111 with the turnover plate body 113 according to a mounting mode commonly used in the industry, and enabling the turnover plate shaft 111 to be positioned at one side edge of the turnover plate body 113; in this embodiment, a copper pipe or an aluminum pipe is selected as a material of the flap fluid channel 114, the copper pipe or the aluminum pipe is coiled on the surface area of the back surface of the working surface of the flap body 113, interfaces are reserved at two ends of the flap body 113 to form a loop, and the flap body 113 is fixedly connected with the flap body 113 in a clip or spot welding manner; in this example, quick-connection copper pipe joints commonly used in the industry are selected as the lower interface 112 and the upper interface 115 respectively, and are used for being connected with pipelines in the cooling or heating device 1 in the whole filter press according to two ports of the turning plate fluid channel respectively, or the lower interface 112 and the upper interface 115 can be omitted by adopting welding among the pipelines; an aluminum silicate fiberboard which is commonly used in the industry is selected as a heat insulation layer 116, the heat insulation layer is installed on the back surface of the working surface of the turning plate body 113, an aluminum foil is paved on the surface layer, close to the turning plate body 113, of the heat insulation layer 116 to serve as a heat radiation layer 117, the heat insulation layer 116 and the heat radiation layer 117 are fixedly connected with the turning plate body 113, and therefore the implementation of the turning plate 11 is completed.

In this example and the preceding directional terms are all directed in the direction facing the view.

As shown in fig. 6-9, in this embodiment, a rectangular filter plate commonly used in the industry is selected as an example, and the filter plate body 51 of this embodiment is formed by combining the filter plates in a steel plate welding manner, so that the defects that the existing filter plate body 51 formed in a casting manner is not easy to provide a fluid medium channel 501 and is difficult to machine a feeding hole are overcome; processing a frame and a filter cavity 58 on the filter plate body 51 according to a mode commonly used in the industry; a side main feeding hole 55 is formed in the upper right corner of the filter plate body 51, a feeding channel 56 is formed in the side main feeding hole 55, a feeding hole 54 is formed in the feeding channel 56 and the upper right corner of the filter cavity 58, the feeding channel 56 can ensure that the side main feeding hole 55 is communicated with the feeding hole 54, the feeding channel 56 can weld the filter plate body 51 after holes are formed in the filter plate body 51, the feeding channel 56 can be machined in a mode of manufacturing process holes in the side face of the filter plate body 51, and the process holes are welded and sealed after the feeding channel 56 is machined; 3 functional holes 52 are arranged at the upper left, lower left and lower right corners of the filter plate body 51, and are taken as filtrate outlet holes 52 in the embodiment and communicated with a filter cavity 58; in this embodiment, recessed areas are formed in the middle of two sides of the filter plate body 51, the surfaces of the two sides of the filter plate body 51 are used as filter cavities 58, a round groove is formed in the solid body of the filter plate body 51 between the filter cavities 58 on the two sides, a copper pipe is embedded in the groove and used as a fluid medium channel 501, then the surface of the groove is welded and filled, and a left joint 503 and a right joint 59 flow out from the upper side surface of the filter plate body 51 and are used for connecting with a pipeline of the feeding or cooling device 1; a plurality of liquid seepage pores 502 or liquid seepage pores 57 are arranged on the filter plate body 51 positioned in the area of the filter cavity 58, and the liquid seepage pores 57 or the liquid seepage pores 502 are ensured to penetrate through the thickness of the filter plate body 51; the liquid permeating pores 502 and the liquid permeating pores 57 are respectively arranged or simultaneously arranged according to the requirements of the materials to be filtered, so that a feeding filter plate is formed; the filter plates without the side feeding channels 56 are selected as non-feeding filter plates 511, the filter plates with the side feeding channels 56 are selected as feeding filter plates, the feeding filter plates and the non-feeding filter plates 511 are stacked at intervals, a filtering cavity is formed between the two filter plates, and the filter plates 5 are formed by combining a plurality of groups.

Referring to fig. 4-5, in this example, a bearing seat with a mounting lug at the lower part, which is commonly used in the industry, is selected as a support 101, and bearing steel quenching is selected as an inner support ring 102 and an outer support ring 103; more than one threaded hole is arranged on the outer circumferential surface of the upper part of the support 101, in the embodiment, 2 threaded holes are selected and penetrate through the wall thickness of the support shell, and the axis of each threaded hole is preferably consistent with the radius direction of an inner hole on the support 101; the outer diameter of the outer support ring 103 is set to be the same as the diameter of an inner hole of the support 101, a concave pit or a hole is arranged on the outer cylindrical surface corresponding to the position of a threaded hole arranged on the support 101, and the diameter of the concave pit or the hole is matched with the diameter of the threaded hole; the inner hole of the outer support ring 103 is designed to be a spherical surface which is concave towards the inner part of the wall thickness, the chord length of the section of the spherical surface is equal to the length of the outer support ring 103, the chord height is 0.3 mm, and the spherical surface is formed by rotating around the axis of the inner hole of the outer support ring 103; in this example, the inner support ring 102 is selected to be annular, the diameter of the inner hole of the inner support ring is equal to the diameter of the shaft end of the flap shaft of the flap 11, and if the flap 11 is large in size and weight, a transmission key slot is arranged in the inner hole if necessary; selecting the length of the inner support ring 102 to be more than or equal to the length of the outer support ring 103, wherein the outer surface of the inner support ring 102 and the inner hole surface of the outer support ring 103 are convex outer spherical surfaces with the same shape and size; the inner support ring 102 is embedded in the outer support ring 103, the two spherical surfaces are tightly attached, the outer support ring 103 is installed in the support 101, the outer support ring 103 is fixed on the support 101 by adopting a set screw, and the implementation of the flap plate support device 10 is completed, when the flap plate support device is applied, because the inner support ring 102 is fixedly connected with the flap plate shaft, the inner support ring 102 synchronously rotates when the flap plate shaft rotates, the inner support ring 102 rotates in the outer support ring 103, and two support devices are arranged at two ends of the flap plate shaft; the flap shaft can normally rotate in the two inner support rings 102, when the flap shaft is bent and deformed, the axis of the flap shaft becomes an arc line, the two inner support rings 102 at two ends change the axis direction along with the flap shaft, and because the inner support rings 102 and the outer support rings 103 are in spherical contact, the axis deviation of the inner support rings 102 in the outer support rings 103 does not influence the smooth rotation of the inner support rings 102 in the outer support rings 103, so that the abrasion of a support part and the damage of the flap shaft cannot be caused.

Referring to fig. 1-3, in this embodiment, a frame, a girder, a pressing plate, a power cylinder, a flap driving device, a feed pump, a thrust plate and a control device of a plate and frame filter press commonly used in the industry are respectively used as the frame 2, the thrust plate 4, the girder 6, the pressing plate 7, the power cylinder 8, the flap driving device 9, the feed pump and the control device; assembling and connecting the components by adopting a method which is universal in the industry; in this example, a mechanical equipment cooling system commonly used in the industry is selected as a medium circulating device 12, an electric heating device commonly used in the industry is installed in a liquid storage tank, the medium circulating device 12 is connected with a turning plate 11 and a filter plate group 5 in series through a pipeline 13, and a liquid medium is heated in the liquid storage tank, wherein the liquid medium can be water, oil or other coolants commonly used in the industry; the electric appliance control part of the medium circulating device 12 is communicated with the control device of the plate-and-frame filter press to form a cooling or heating device 1; the turning plate 11 is arranged on the frame 2 and is connected with the frame 2 through a turning plate supporting device 10, one end part of a turning plate shaft is connected with a turning plate driving device 10, and the turning plate 11 can rotate on the turning plate supporting device 10; the filter plate group 5 is arranged on a girder 6 and is connected with a feed inlet through a pipeline, and then is connected with a feed pump; the single filter plate of the filter plate group 5 is connected with a filter plate opening and closing device, wherein the filter plate opening and closing device is the power cylinder 8 and accessories thereof; thus, the present invention has been completed.

When the device is applied, if the filtered medium needs to work at a certain temperature, the electric heating device in the cooling or heating device 1 is started to heat the liquid medium, the circulating pump in the medium circulating device 12 is started, the heated liquid medium enters the turning plate 11 and the filter plate group 5 from the liquid storage tank through a pipeline, the turning plate body 111 of the filter plate 11 and the turning plate 11 in the filter plate group 5 is heated, so that the filtered material is conveyed into the filter plate group 5 through the feeding pump, and because the side edge dispersed feeding is adopted, the situation that the front stage is damaged due to the centralized feeding from the middle part in the prior art is avoided, the pressing plate 7 presses the filter plate group 5 on the thrust plate 4 under the action of the power cylinder 8, the filtering is carried out under pressure, because the filter plate group 5 works under high pressure, the self generates large heat, sometimes heat needs to be radiated, and the electric heating device in the liquid storage tank of the medium circulating device 12 stops working, cooling liquid is introduced into the filter plate groups 5, the cooling liquid is heated by the filter plate groups 5 with high temperature after passing through the filter plate groups 5, and then enters the turning plate 11 to heat the turning plate 11, so that liquid media do not need to be heated additionally, and the function of energy recycling is achieved; after the filtration is finished, the power oil cylinder 8 moves reversely to pull the filter plate group 5 open, the filter plates of the filter plate group 5 are separated, the turning plate 11 is turned over at the moment, the middle slag falling position is left, filter residues fall at the slag falling position from the filter plates, and the feeding action is repeated, so that the working process of the plate-and-frame filter press is formed.

Claims

1. A plate and frame filter press which is characterized in that: the device comprises a cooling or heating device, a frame, a feeding hole, a thrust plate, a filter plate group, a crossbeam, a pressing plate, a power cylinder, a turning plate driving device, a turning plate supporting device and a turning plate; the cooling or heating device is arranged near the frame and comprises a medium circulating device and a pipeline; the medium circulating device comprises a driving motor, a circulating pump and a medium storage device; the driving motor is arranged near the medium storage device, and a power output shaft of the driving motor is connected with a power input shaft of the circulating pump and can drive the circulating pump to run; the circuit part of the driving motor is connected with a control system of the plate-and-frame filter press; the circulating pump is arranged near the medium storage device, an inlet of the circulating pump is communicated with an inner cavity of the medium storage device and is immersed in the heating or cooling medium, and an outlet of the circulating pump is hermetically connected with an interface at one end of the pipeline and can output the heating or cooling medium into the pipeline; the medium storage device is arranged near the frame or connected with the frame and comprises a liquid storage tank, a liquid outlet, a liquid inlet and a heating device; the liquid storage tank is a closed cavity body with an opening, and a liquid medium is contained in an inner cavity of the liquid storage tank; the liquid outlet is hermetically connected with an inlet of the circulating pump; the liquid inlet is connected with one end of a pipeline; the heating device is arranged in the liquid storage tank and can heat the liquid medium in the liquid storage tank; the pipeline is arranged on the medium circulating device, is respectively connected with the medium circulating channels on the turning plate and the filter plate group and then returns to the medium circulating device to form a loop; the frame is arranged on the base and can support the girder, the power cylinder, the accessories and the control elements; the feed port is arranged at the end part of the thrust plate and is connected with a feed pump of the filtered material through a pipeline; the thrust plate is arranged on the rack and fixedly connected with the rack; the filter plate group is arranged on the girder and is erected on the girder in a floating way; the filter plate group consists of a plurality of filter plates, each filter plate is mutually attached, and a filter cavity is arranged between two filter plates; the crossbeam is arranged on the frame and is fixedly connected with the frame; the pressing plate is sleeved on the girder and can slide on the girder along the girder, and the area of the end face of the pressing plate is matched with that of the end face of the filter plate; the power oil cylinder is arranged on the frame, is positioned at one end of the crossbeam and is fixedly connected with the frame, and the end part of a piston rod of the power oil cylinder is connected with the pressing plate and can push the pressing plate to do linear motion; the turning plate driving device is arranged on the rack, is fixedly connected with the rack and comprises a driving element and a transmission device; the driving element is arranged on the frame and fixedly connected with the frame, and the power output part is connected with the transmission device; one end of the transmission device is connected with the driving element, and the other end of the transmission device is connected with a transmission wheel at the shaft end of the turning plate; the turning plate supporting device is arranged on the rack and is fixedly connected with the rack; the turnover plate supporting devices are positioned at two ends of each turnover plate shaft and can support the turnover plates and realize that the turnover plates rotate along the turnover plate shafts; the turning plate is arranged on the turning plate supporting device through a turning plate shaft on one side of the turning plate, is connected with the turning plate supporting device in a sleeved mode and can rotate in the turning plate supporting device, and a driving wheel is arranged at the end, located at the same end of the turning plate driving device, of the turning plate shaft and can rotate under the driving of the turning plate driving device.

2. A plate and frame filter press according to claim 1, wherein: the filter plate group is formed by combining feeding filter plates and non-feeding filter plates at intervals.

3. A plate and frame filter press according to claim 1, wherein: the turning plate supporting device comprises an installation support, an inner sliding ring and an outer sliding ring; the mounting support is arranged on the periphery of the outer sliding ring, and a fixed mounting structure connected with the frame is arranged on the periphery of the mounting support and is a step or a bulge with a bolt hole; the mounting support is provided with an outer sliding ring mounting hole, the diameter of the outer sliding ring mounting hole is matched with the outer diameter of the outer sliding ring, and the outer sliding ring can be fastened in the mounting hole; the outer slip ring is arranged in the mounting hole on the mounting support and is annular, the outer ring of the outer slip ring is matched with the mounting hole of the outer slip ring on the mounting support and can be fixedly connected with the mounting hole of the outer slip ring, the inner hole of the outer slip ring is a spherical hole, and the spherical radius of the inner slip ring is the same as the spherical surface radius of the outer diameter of the inner slip ring; the inner sliding ring is arranged in an inner hole of the outer sliding ring and is annular, and the inner hole of the inner sliding ring is a cylindrical hole, is matched with the shaft end of the flap shaft and can be fixedly connected with the flap shaft; the outer surface of the inner slip ring is an outward convex spherical surface, and the radius of the spherical surface is matched and attached with the inner hole spherical surface of the outer slip ring.

4. A plate and frame filter press according to claim 3, wherein: the height of the inner hole of the outer sliding ring and the height of the outer spherical surface of the inner sliding ring are not more than 0.5 mm, so that the inner sliding ring is conveniently arranged in the outer sliding ring.

5. A plate and frame filter press according to claim 3, wherein: the inner slip ring and the outer slip ring are both made of wear-resistant materials.