CN212974294U

CN212974294U - Secondary filter-pressing type filter press

Info

Publication number: CN212974294U
Application number: CN202020963842.8U
Authority: CN
Inventors: 郭霆; 杨馥榕
Original assignee: Wuxi Yaoxin New Material Technology Co Ltd
Current assignee: Wuxi Yaoxin New Material Technology Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-04-16
Anticipated expiration: 2030-05-29

Abstract

The utility model discloses a secondary filter press, which comprises a frame, a plurality of filter plate components and a pressing device, wherein the pressing device is arranged on the frame, the pressing device can drive the plurality of filter plate components to be sequentially pressed together, the filter plate components comprise a filter frame, two filter cloths, two sliding plates and a driving structure, the two ends of the filter frame are communicated and can be slidably arranged on the frame, the two filter cloths are respectively arranged in the filter frame to divide the inner cavity of the filter frame into a movable cavity and filter cavities arranged at the two sides of the movable cavity, the two sliding plates are movably arranged in the movable cavity, the driving structure drives the two sliding plates to move towards the directions far away from or close to each other, a pressing part is convexly arranged on the two sliding plates towards the directions far away from each other, the two adjacent filter cavities jointly form a filter chamber, the bottom of the filter frame is provided with a liquid outlet, the liquid, the feed inlet is communicated with the filter chamber. The utility model discloses the filter-pressing is effectual, has saved the manpower, has improved work efficiency.

Description

Secondary filter-pressing type filter press

Technical Field

The utility model relates to a pressure filter technical field especially relates to a secondary filter-pressing formula pressure filter.

Background

The filter press is used as a pressurizing and filtering device for solid-liquid separation of various slurries, the filter press compresses a filter plate by a compressing device, the slurries are pressed into a filter chamber by a pump, the aim of separating solid particles from liquid is achieved by filter cloth, and the filter press is widely applied to the field of precious metal recovery and application.

At present, when a filter press works, pressure is mainly provided by a material conveying pump, slurry to be filtered is conveyed into each filter chamber, solid and liquid are separated under the action of filter cloth, filtrate flows out of a liquid outlet hole and is intensively discharged, filter residues are retained on the filter cloth until the filter chambers are full of the filter cloth to form filter cakes, and after the filter is finished, the filter press is opened to remove the filter cakes, and the next round of work is started again. Because the filter-pressing in-process only relies on the pressure of conveying pump input to extrude thick liquids, the dewatering efficiency of thick liquids is not high, and the filter-pressing effect is not good to, traditional filter press is after the filter-pressing, and the filter cake drops mainly to rely on the action of gravity of self to drop automatically, and when the filter plate was opened, the condition that does not drop automatically probably can appear in the filter cake, and at this moment, just need the manual work to make the filter cake drop, when consumeing a large amount of manpowers, also reduced the work efficiency of filter press.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: in order to overcome the defects in the prior art, the secondary filter press with good filter pressing effect and labor saving is provided.

The utility model provides a technical scheme that its technical problem adopted is: a secondary filter press comprises a frame, a plurality of filter plate assemblies and a pressing device, wherein the pressing device is installed on the frame and can drive the filter plate assemblies to be sequentially extruded together, each filter plate assembly comprises a filter frame, two filter cloths, two sliding plates and a driving structure, two ends of the filter frame are communicated and slidably arranged on the frame, the two filter cloths are respectively installed in the filter frame and divide an inner cavity of the filter frame into a movable cavity and filter cavities arranged on two sides of the movable cavity, the two sliding plates are movably arranged in the movable cavity, the driving structure drives the two sliding plates to move towards directions away from or close to each other, jacking parts are convexly arranged on the two sliding plates towards directions deviating from each other, the adjacent two filter cavities jointly form a filter chamber, and the bottom of the filter frame is provided with a liquid outlet, the liquid outlet communicates the space between the filter cloth and the sliding plate, the top of the filter frame is provided with a feed inlet, and the feed inlet is communicated with the filter chamber.

Further, the jacking portion is of an arc-shaped structure.

Furthermore, the sliding plates are in sealing fit with the cavity wall of the movable cavity, one of the sliding plates is arranged close to one of the filter cloths, and the other sliding plate is arranged close to the other filter cloth.

Further, the driving structure comprises a screw rod rotatably installed in the movable cavity, a driven gear sleeved outside the screw rod, a driving gear meshed with the driven gear and a motor driving the driving gear to rotate, the two sliding plates are respectively in threaded connection with two ends of the screw rod, and the spiral directions of the two ends of the screw rod are opposite.

Furthermore, a support column is installed in the movable cavity, the middle of the screw rod is a smooth section, and the smooth section of the screw rod can rotatably penetrate through the support column.

Further, a bearing is arranged between the screw and the support column, an outer ring of the bearing is installed in the support column, and an inner ring of the bearing is sleeved outside the smooth section of the screw.

Furthermore, the frame includes two stands that relative setting and fixed mounting are in two crossbearers of the relative both sides of stand, the filtration frame erects slidable on the crossbearer.

Furthermore, one of the upright columns is provided with a thrust plate, the pressing device is arranged on the other upright column, the pressing device is provided with an extending end, the extending end can extend out or retract, the end part of the extending end is provided with a pressing plate, and the pressing plate and the thrust plate are arranged oppositely.

Further, the pressing device is a compression cylinder, and the extending end is an extending shaft of the compression cylinder.

Furthermore, bulges are convexly arranged on two opposite sides of the filter frame respectively and are respectively lapped on the cross frame.

The utility model has the advantages that: the utility model provides a secondary filter-pressing formula pressure filter carries out the first filter-pressing back to thick liquids at feed pump input pressure, and the activity of drive slide carries out the second filter-pressing to the filter residue, has realized the secondary filter-pressing function of thick liquids, and the filter-pressing is effectual, has guaranteed filter-pressing efficiency, simultaneously, when adjacent filter plate subassembly separates, the activity of slide also can play the effect of pushing away to the filter cake, has guaranteed that the filter cake drops automatically, has saved the manpower, has improved work efficiency.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Figure 1 is a top view of a secondary filter press of the present invention (with a plurality of filter plate assemblies in a compacted state);

FIG. 2 is a left side view of the vertical column of the secondary filter press of FIG. 1;

figure 3 is a cross-sectional view along a-a of the secondary filter press of figure 1;

figure 4 is an enlarged view of the filter plate assembly of the secondary filter press of figure 3.

In the figure: 10. the device comprises a frame, 11, a vertical column, 12, a cross frame, 13, a thrust plate, 20, a filter plate assembly, 21, a filter frame, 211, a movable cavity, 212, a filter cavity, 213, a filter chamber, 214, a liquid outlet, 215, a feed inlet, 216, a bulge, 22, filter cloth, 23, a sliding plate, 231, a jacking part, 24, a driving structure, 241, a screw rod, 242, a driven gear, 243, a driving gear, 244, a motor, 245, a support column, 30, a pressing device, 31, an extending end, 32 and a pushing plate.

Detailed Description

The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.

Referring to fig. 1 and 3, the present invention provides a secondary filter press, which comprises a frame 10, a plurality of filter plate assemblies 20 slidably mounted on the frame 10, and a pressing device 30 mounted on the frame 10, wherein the filter plate assemblies 20 are used for pressing slurry to separate filter residue from filtrate, and the pressing device 30 is used for sequentially pressing the filter plate assemblies 20 together.

Specifically, referring to fig. 2, the frame 10 includes two upright posts 11 disposed opposite to each other and two cross frames 12 fixedly mounted on opposite sides of the upright posts 11, the upright posts 11 are substantially "n" shaped, and the two cross frames 12 are connected to the tops of the upright posts 11.

One of the columns 11 is provided with a thrust plate 13, the pressing device 30 is arranged on the other column 11, the pressing device 30 is provided with a protruding end 31, the pressing device 30 can drive the protruding end 31 to extend or retract when in operation, the end part of the protruding end 31 is provided with a pushing plate 32, the pushing plate 32 is arranged opposite to the thrust plate 13, and when the protruding end 31 extends, the plurality of filter plate assemblies 20 can be tightly squeezed between the pushing plate 32 and the thrust plate 13.

In this embodiment, the pressing device 30 is a compression cylinder, and the protruding end 31 is a protruding shaft of the compression cylinder, and the compression cylinder may be an air cylinder or a hydraulic cylinder. In other embodiments, not shown, the pressing device 30 uses a screw transmission structure to realize the movement of the protruding end 31, for example, the pressing device 30 includes a screw rotatably mounted on the upright 11 and a slide block slidably disposed on the upright 11, the slide block is in threaded connection with the screw, when the screw rotates, the slide block can be driven to slide, so that the plurality of filter plate assemblies 20 are sequentially pressed by the slide block, obviously, the protruding end 31 is formed by the slide block.

Referring to fig. 3 and 4, the filter plate assembly 20 includes a filter frame 21 slidably mounted on the cross frame 12, two filter cloths 22 oppositely mounted in the filter frame 21, two slide plates 23 movably mounted in the filter frame 21, and a driving structure 24 for driving the two slide plates 23 to move in a direction away from or toward each other. While the filter plate assemblies 20 are shown as having three in this embodiment, it will be appreciated that the number of filter plate assemblies 20 can be more than three in other embodiments not shown.

In this embodiment, the filter frame 21 is a hollow frame structure with two through ends, the two filter cloths 22 are respectively installed in the cavity of the filter frame 21, so as to separate the inner cavity of the filter frame 21 into a movable cavity 211 and two filter cavities 212 respectively located at two opposite sides of the movable cavity 211, the two sliding plates 23 are movably installed in the movable cavity 211, the sliding plates 23 are in sealing fit with the cavity wall of the movable cavity 211, so that the sliding plates 23 can only reciprocate left and right in the movable cavity 211, but cannot rotate relative to the filter frame 21, one of the sliding plates 23 is disposed near one of the filter cloths 22, and the other sliding plate 23 is disposed near the other filter cloth 22. When two adjacent filter plate assemblies 20 are pressed together, the two filter frames 21 are sealingly engaged with each other such that two adjacent filter chambers 212 together define a filter chamber 213. In addition, the bottom of the filter frame 21 is provided with a liquid outlet 214, the liquid outlet 214 is communicated with the space between the filter cloth 22 and the sliding plate 23, the top of the filter frame 21 is provided with a feed inlet 215, the feed inlet 215 is communicated with the filter cavity 212, and obviously, when the two filter plate assemblies 20 are pressed together, the feed inlet 215 is communicated with the filter chamber 213.

In order to meet the requirement of use, the number of the liquid outlets 214 on each filter frame 21 is two, and the number of the liquid inlets 215 on each filter frame 21 is two. During the use, the liquid outlet 214 on every filter frame 21 all communicates on same liquid outlet hose (not shown), and the liquid that the filter-pressing came out concentrates after flowing out via liquid outlet 214 and follows in the liquid outlet hose flows out, and feed inlet 215 on every filter frame 21 all communicates on same feed hose (not shown), install the feed pump on the feed hose, thick liquids are in the effect of feed pump is extruded and is entered into to the filter chamber 213 in, under the pressure of feed pump, liquid in the thick liquids enter into to the movable cavity 211 behind the filter cloth 22 and then flow out by liquid outlet 214, and the filter residue is concentrated in filter chamber 213, and after the filter-pressing was accomplished, the filter residue formed the filter cake.

In this embodiment, the two sliding plates 23 are provided with pressing portions 231 protruding in the direction away from each other, the pressing portions 231 are arc-shaped, and when the two sliding plates 23 move in the direction away from each other, the pressing portions 231 on the sliding plates 23 can push the filter cloth 22, so that the filter cloth 22 deforms and retracts into the filter chamber 213. Thus, in the filter pressing process, when the feed pump stops inputting pressure into the filter chamber 213, the sliding plate 23 moves to push the filter cloth 22, that is, the filter residue in the filter chamber 213 is squeezed, so that the secondary filter pressing effect is realized, liquid in the filter residue can be pressed and pressed as much as possible, and the filter pressing effect is improved; when two adjacent filter frames 21 are separated, the filter cake can automatically fall off under the pushing action of the top pressing part 231, and the condition that the filter cake does not automatically fall off is effectively prevented.

In this embodiment, the driving structure 24 includes a screw 241 rotatably installed in the movable cavity 211, a driven gear 242 sleeved outside the screw 241, a driving gear 243 engaged with the driven gear 242, and a motor 244 driving the driving gear 243 to rotate, the motor 244 is connected to the inner wall of the filter frame 21, the two sliding plates 23 are respectively in threaded connection with two ends of the screw 242, and the spiral directions of two ends of the screw 241 are opposite, so that when the screw 241 rotates, the sliding plates 23 at two ends of the screw 241 can be close to each other or far away from each other simultaneously under the action of thread fit. In use, the motor 244 is activated to rotate the driving gear 243, and then the driven gear 242 is driven to rotate, and then the screw 241 is driven to rotate. The motor 244 is a counter-rotating motor.

In addition, the supporting column 245 is fixedly installed on the bottom wall of the movable cavity 211, the middle portion of the screw 241 is a smooth section, the smooth section is free of threads, the smooth section of the screw 241 rotatably penetrates through the supporting column 245, for the convenience of rotation of the screw 241, a bearing (not shown) is arranged between the screw 241 and the supporting column 245, an outer ring of the bearing is installed in the supporting column 245, and an inner ring of the bearing is sleeved outside the smooth section of the screw 241.

It is understood that in other embodiments, not shown, the driving structure 24 may be other structures, for example, the driving structure 24 may be two cylinders for controlling the movement of the two sliding plates 23, and the specific structure of the driving structure 24 is not limited herein, and only needs to be sufficient to drive the sliding plates 23 to reciprocate.

In addition, two opposite sides of the filter frame 21 are respectively provided with a protrusion 216 in a protruding manner, and the two protrusions 216 are respectively overlapped on the cross frames 12 on the two sides, so that the filter plate assemblies 20 are overlapped on the cross frames 12, and the filter plate assemblies 20 can slide relative to the cross frames 12 under the action of the protrusions 216. In other embodiments, not shown, the cross frame 12 may further have a sliding slot formed therein along the length of the cross frame 12, and the protrusion 216 may be slidably disposed in the sliding slot.

The utility model discloses a secondary filter-press formula pressure filter, during the use, closing device 30 drive bulldozes the board 32 and stretches out and then promotes the filter frame 21 on the filter plate subassembly 20 that is closest to closing device 30, and filter plate subassembly 20 removes in proper order and compresses tightly, finally makes the one side of the filter frame 21 on the filter plate subassembly 20 that is closest to thrust plate 13 tightly extrude on thrust plate 13, so, a plurality of filter plate subassemblies 20 extrude each other in proper order and form a whole. Under the pressure of the feed pump, the slurry is fed through the feed hose into the filtration chamber 213, through the filter cloth 22, where the solids and liquids are separated. When the material delivery pump works for a period of time, the operation is stopped, at this time, the motor 244 is started, the driving screw 242 rotates to drive the sliding plate 23 and the pushing part 231 to push the filter cloth 22, so that the filter residue is further subjected to filter pressing, after the filter pressing process is completed, the filter plate assemblies 20 are separated, the movable sliding plate 23 continues to push the filter cake formed in the filter chamber 213 out, and the automatic falling function of the filter cake is realized.

In addition, the number of rotation turns of the motor 244 is controllable, so that the moving stroke of the sliding plate 23 is controlled, and the sliding plate 23 can be effectively prevented from closing the liquid outlet 214, thereby influencing liquid discharge.

The utility model provides a secondary filter-pressing formula pressure filter carries out the first filter-pressing back to thick liquids at feed pump input pressure, and the activity of drive slide 23 carries out the second filter-pressing to the filter residue, has realized the secondary filter-pressing function of thick liquids, and the filter-pressing is effectual, has guaranteed filter-pressing efficiency, simultaneously, when adjacent filter plate subassembly 20 separates, slide 23's activity also can play the effect of pushing away to the filter cake, has guaranteed that the filter cake drops automatically, has saved the manpower, has improved work efficiency.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a secondary filter-press formula pressure filter which characterized in that: the secondary filter press comprises a frame, a plurality of filter plate assemblies and a pressing device, wherein the pressing device is arranged on the frame, the pressing device can drive the filter plate assemblies to be sequentially extruded together, each filter plate assembly comprises a filter frame, two filter cloths, two sliding plates and a driving structure, the two ends of the filter frame are communicated and slidably arranged on the frame, the two filter cloths are respectively arranged in the filter frame to divide the inner cavity of the filter frame into a movable cavity and filter cavities arranged at the two sides of the movable cavity, the two sliding plates are movably arranged in the movable cavity, the driving structure drives the two sliding plates to move towards the directions far away from or close to each other, a pressing part is convexly arranged on the two sliding plates towards the directions far away from each other, the adjacent two filter cavities jointly form a filter chamber, and the bottom of the filter frame is provided with a liquid outlet, the liquid outlet communicates the space between the filter cloth and the sliding plate, the top of the filter frame is provided with a feed inlet, and the feed inlet is communicated with the filter chamber.

2. The secondary filter press according to claim 1, wherein: the top pressing part is of an arc-shaped structure.

3. The secondary filter press according to claim 2, wherein: the sliding plates are in sealing fit with the cavity wall of the movable cavity, one sliding plate is arranged close to one filter cloth, and the other sliding plate is arranged close to the other filter cloth.

4. The secondary filter press according to claim 1, wherein: the driving structure comprises a screw rod rotatably installed in the movable cavity, a driven gear sleeved outside the screw rod, a driving gear meshed with the driven gear and a motor driving the driving gear to rotate, the two sliding plates are respectively in threaded connection with two ends of the screw rod, and the spiral directions of the two ends of the screw rod are opposite.

5. The secondary filter press according to claim 4, wherein: the movable cavity is internally provided with a supporting column, the middle part of the screw rod is a smooth section, and the smooth section of the screw rod can rotatably penetrate through the supporting column.

6. The secondary filter press according to claim 5, wherein: the screw rod with be provided with the bearing between the support column, the outer lane of bearing is installed in the support column, the inner circle cover of bearing is established the outside of the smooth section of screw rod.

7. The secondary filter press according to claim 1, wherein: the frame includes two stands that relative setting and fixed mounting are in two crossbearers of the relative both sides of stand, strain the frame slidable and erect on the crossbearer.

8. The secondary filter press according to claim 7, wherein: one of the upright columns is provided with a thrust plate, the pressing device is arranged on the other upright column and is provided with an extending end, the extending end can extend out or retract, the end part of the extending end is provided with a pushing plate, and the pushing plate and the thrust plate are arranged oppositely.

9. The secondary filter press according to claim 8, wherein: the compressing device is a compression cylinder, and the extending end is an extending shaft of the compression cylinder.

10. The secondary filter press according to claim 7, wherein: the two opposite sides of the filter frame are respectively provided with a bulge in a protruding mode, and the bulges are respectively lapped on the cross frame.