Vertical filter press

Abstract

The utility model discloses a vertical filter press, which relates to the technical field of filter presses and comprises a base, a horizontal filter plate is arranged on the base, and rollers are arranged on the filter plate. Hanging plates are arranged between the rollers of the filter plates, round holes are formed in the upper sides of the hanging plates, and inclined long holes are formed in the lower sides of the hanging plates; the filter plate comprises a hanging plate, a roller is arranged on the hanging plate, a roller boss is arranged on the roller, an elastic ring is arranged between the roller boss and the hanging plate, and the two ends of the elastic ring abut against the roller boss and the hanging plate respectively. The elastic ring exerts thrust on the hanging plate to ensure that the filter plate swings stably, and when the filter plate is switched from a static state to a movable state, the filter plate is finely adjusted to prevent the filter plate from being blocked and cannot swing, the filter plate is ensured to move smoothly, the hanging plate can be matched with the filter plate to increase the stroke, and a filter cake can be taken out conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of filter presses, in particular to a vertical filter press. Background Art

[0002] Filter press is the main filtering equipment in the solid-liquid separation industry, suitable for solid-liquid separation of various suspensions. The vertical filter press uses filter plates stacked horizontally in the up-and-down direction, and several groups of filter chambers are formed between the filter plates of each layer. Then a continuous filter belt is used to pass through the filter chambers of each layer in sequence to complete the filtration. The raw materials are dehydrated into filter cakes in the filter chambers.

[0003] Each layer of filter plates in a vertical filter press generally needs to be connected by a hanging plate. Currently, the most common hanging plates are triangular hanging plates, with round holes on the upper side and oblique long holes on the lower side. The upper hanging plate is connected to the round hole through a rotating shaft, and the lower hanging plate is connected to the long hole through a rotating shaft. The hanging plate can rotate and swing to cooperate with the process of lifting and opening and closing the filter plate. This hanging plate structure occupies a small space, but there is a problem that the travel of the filter plate is limited by the hanging plate when it is opened, that is, the space between the filter plates is too small after opening. This situation makes the process of removing the filter cake on the filter plate very inconvenient.

[0004] In order to extend the opening stroke of the hanging plate in this structure of filter press, the length of the oblique hole needs to be extended. However, since the oblique hole is equivalent to the vertical extension line being inclined, directly extending the length of the oblique hole is equivalent to increasing the swing amplitude of the hanging plate, which is easy to cause the filter plate to get stuck during the opening and closing process, and may even damage the hanging plate. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a vertical filter press.

[0006] The utility model adopts the following technical scheme to solve the technical problem: a vertical filter press is provided, comprising a machine base, a horizontal filter plate is arranged on the machine base, each of the filter plates is distributed in the up-down direction, and rollers are arranged on the filter plates; a hanging plate is arranged between the rollers of each of the filter plates, a round hole is arranged on the upper side of the hanging plate, an inclined long hole is arranged on the lower side of the hanging plate, the rollers of the filter plate on the upper side are inserted into the round holes of the hanging plate, and the rollers of the filter plate on the lower side are inserted into the inclined long holes of the hanging plate; a roller boss is arranged on the roller, an elastic ring is arranged between the roller boss and the hanging plate, and two ends of the elastic ring respectively support the roller boss and the hanging plate.

[0007] According to the vertical filter press provided by the utility model, by adopting the design of installing elastic rings on the rollers of the filter plates to cooperate with the hanging plates, at least the following technical effects are achieved: during the lifting and lowering process of the filter plates, the elastic rings apply thrust to the hanging plates to ensure the stability of the filter plate swinging process, and when the filter plates switch from a static state to an active state, the filter plates are fine-tuned to avoid the filter plates getting stuck and unable to swing, thereby ensuring the smooth movement of the filter plates, so that the hanging plates can cooperate with the design of increasing the travel of the filter plates, thereby facilitating the removal of the filter cakes.

[0008] As some preferred embodiments of the present utility model, the elastic ring includes a "C"-shaped elastic portion, and the "C"-shaped elastic portion has a snap-fit ​​opening.

[0009] As some preferred embodiments of the present utility model, the "C"-shaped elastic portion is formed by bending an iron wire.

[0010] As some preferred embodiments of the present utility model, the elastic ring includes an outer ring, and the outer ring has a hand grip portion.

[0011] As some preferred embodiments of the utility model, the machine base is provided with an upper fixed top frame and a lower lifting and pressing plate, and each of the filter plates is distributed between the fixed top frame and the lifting and pressing plate.

[0012] As some preferred embodiments of the utility model, a vertical guide column is arranged between the fixed top frame and the lifting and clamping plate, and the vertical guide column includes a guide piston cylinder and a fixed piston rod, and the guide piston cylinder is sleeved on the fixed piston rod.

[0013] As some preferred embodiments of the utility model, a filter grid is provided on the upper side of the filter plate, the filter grid is connected with filter holes, a recess is provided on the lower side of the filter plate as a filter chamber, and the filter chamber is connected with a feed hole and a water hole.

[0014] As some preferred embodiments of the utility model, a filter screen is arranged on the filter grid, and a diaphragm is arranged on the filter chamber.

[0015] As some preferred embodiments of the utility model, guide rollers are arranged on the outer sides of the filter plates for guiding the filter cloth to pass through the spaces between the adjacent filter plates.

[0016] As some preferred embodiments of the utility model, a sealing strip recess is provided on the outer edge of the filter plate, and a sealing strip is provided on the sealing strip recess.

[0017] The beneficial effects of the utility model are:

[0018] 1. The new design lengthens the lifting stroke of the filter plate, leaving more space after the filter plate is opened, making it easier to remove the filter cake;

[0019] 2. The elastic ring exerts thrust on the hanging plate to ensure the stability of the filter plate swing process, thereby making the filter cake lifting process more stable;

[0020] 3. When the filter plate switches from the static state of the roller of the left or right side of the inclined long hole supporting the filter plate of the next layer to the swingable active state, the elastic ring plays a role in fine-tuning the filter plate to avoid the filter plate from getting stuck and unable to swing or even the hanging plate being damaged, ensuring the smooth movement of the filter plate;

[0021] 4. The sealing strip on the outer edge of the filter plate is used to improve the sealing of the filter chamber and ensure the filter pressing effect. After the filter plate is opened, the space is increased to prevent the sealing strip from being brought to the seal during the removal of the filter cake and causing it to loosen.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 This is the front view of the vertical filter press of the utility model;

[0025] Figure 2 It is a schematic diagram of the installation of the hanging plate in the utility model;

[0026] Figure 3 It is a structural schematic diagram of the elastic ring in the utility model;

[0027] Figure 4 It is a working schematic diagram of the filter plate in the utility model.

[0028] Reference numerals:

[0029] Machine base 100, fixed top frame 110, lifting and clamping plate 120, lifting control device 121, vertical guide column 130, guide piston cylinder 131, fixed piston rod 132; filter plate 200, roller 210, roller boss 211, filter grid 220, filter hole 221, filter screen 222, recessed position as filter chamber 230, feed hole 231, water hole 232, diaphragm 233, guide roller 240, sealing strip recessed position 250, sealing strip 251; hanging plate 300, circular hole 310, inclined long hole 320; elastic ring 400, "C"-shaped elastic part 410, snap-on opening 411, outer ring 420, hand grip part 421; filter cloth 500. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the present utility model, the meaning of "a plurality" is more than two, and "greater than", "less than", "exceed" etc. are understood to exclude the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] Figure 1 This is a front view of an embodiment of the utility model, referring to Figure 1 One embodiment of the utility model provides a vertical filter press, which is responsible for performing pressurized filtration to achieve solid-liquid separation.

[0035] Furthermore, the vertical filter press of the utility model comprises a base 100, on which a horizontal filter plate 200 is arranged, each filter plate 200 is distributed in the up-down direction, and a roller 210 is arranged on the filter plate 200. Each filter plate 200 is movable. When adjacent filter plates 200 are closed and pressed against each other, the filter pressing work can be performed. When adjacent filter plates 200 are opened and separated from each other, the filter cake can be taken out.

[0036] Further, refer to Figure 1 , Figure 2A hanging plate 300 is arranged between the rollers 210 of each filter plate 200 so that the filter plates 200 of each layer are connected together. A circular hole 310 is arranged on the upper side of the hanging plate 300, and an inclined long hole 320 is arranged on the lower side of the hanging plate 300. The rollers 210 of the filter plate 200 on the upper side are inserted into the circular holes 310 of the hanging plate 300, and the rollers 210 of the filter plate 200 on the lower side are inserted into the inclined long holes 320 of the hanging plate 300. In this way, the hanging plate 300 can swing along the circular holes 310 and the rollers 210 of the filter plate 200 of the upper layer, and the filter plate 200 of the next layer is guided by the rollers 210 of the filter plate 200 of the next layer through the inclined long holes 320 of the hanging plate 300.

[0037] Furthermore, a roller boss 211 is provided on the roller 210, and an elastic ring 400 is provided between the roller boss 211 and the hanging plate 300, and the two ends of the elastic ring 400 respectively support the roller boss 211 and the hanging plate 300. In this way, the elastic ring 400 applies a thrust to the hanging plate 300, and also allows the hanging plate 300 to have a certain range of fine adjustment space on the roller 210.

[0038] In actual work, Figure 2 The embodiment shown in the figure shows that when the adjacent filter plates 200 are closed and pressed against each other, the hanging plate 300 swings to the right until the roller 210 of the filter plate 200 of the next layer presses against the left side of the inclined long hole 320. When the adjacent filter plates 200 are opened and separated from each other, the roller 210 of the filter plate 200 of the previous layer is equivalent to pulling up the hanging plate 300, and the filter plate 200 swings to the left until the roller 210 of the filter plate 200 of the next layer presses against the right side of the inclined long hole 320, which drives the filter plate 200 of the next layer to be pulled up.

[0039] In the above process, the elastic ring 400 applies a thrust to the hanging plate 300 to ensure that the filter plate 200 swings stably, and when the filter plate 200 switches from a static state to an active state from the left or right side of the inclined long hole 320 that supports the roller 210 of the next layer of the filter plate 200, the elastic ring 400 plays a role in fine-tuning the filter plate 200 to avoid the filter plate 200 from getting stuck and being unable to swing, thereby ensuring that the filter plate 200 moves smoothly.

[0040] Some embodiments, see Figure 2 , Figure 3 The elastic ring 400 includes a "C"-shaped elastic portion 410, and the "C"-shaped elastic portion 410 has a snap-fit ​​opening 411. The "C"-shaped elastic portion 410 of the elastic ring 400 can be sleeved on the roller 210 through the snap-fit ​​opening 411, which facilitates the disassembly and assembly of the elastic ring 400.

[0041] Some embodiments, see Figure 3 The “C”-shaped elastic portion 410 is formed by bending an iron wire to form an elastic structure similar to a spring or a shrapnel.

[0042] In some embodiments, the “C”-shaped elastic portion 410 is made of elastic material.

[0043] In some embodiments, the elastic ring 400 includes an outer ring 420, and the outer ring 420 has a grip 421, so that the staff can disassemble and assemble the elastic ring 400 by holding the grip 421. This design allows a space between the grip 421 and the roller 210, making the disassembly and assembly work easier.

[0044] In some embodiments, the inclined long hole 320 is an arc-shaped hole, and the extension direction of the inclined long hole 320 is determined according to the swing range designed for the hanging plate 300, which will not be described in detail here.

[0045] Some embodiments, see Figure 1 The machine base 100 is provided with an upper fixed top frame 110 and a lower lifting and pressing plate 120 , and each filter plate 200 is distributed between the fixed top frame 110 and the lifting and pressing plate 120 , and the lifting and pressing plate 120 applies pressure to the filter plate 200 to perform a filtration process.

[0046] In this embodiment, optionally, the lifting and pressing plate 120 is controlled to lift and lower via a lifting control device 121 .

[0047] In this embodiment, optionally, the lifting control device 121 adopts a motor or a cylinder device.

[0048] In some embodiments, a vertical guide column 130 is provided between the fixed top frame 110 and the lifting and clamping plate 120. The vertical guide column 130 includes a guide piston cylinder 131 and a fixed piston rod 132. The guide piston cylinder 131 is sleeved on the fixed piston rod 132. The vertical guide column 130 is responsible for guiding the lifting and clamping plate 120 to lift and lower, ensuring that the lifting control device 121 of the lifting and clamping plate 120 is synchronized during operation, thereby ensuring the stable operation of the equipment.

[0049] Some embodiments, see Figure 4 , a filter grid 220 is provided on the upper side of the filter plate 200, and the filter grid 220 is connected with a filter hole 221. A concave position is provided on the lower side of the filter plate 200 as a filter chamber 230, and the filter chamber 230 is connected with a feed hole 231 and a water hole 232. The filter plates 200 adjacent to each other are closed, and after the filter cloth 500 passes through the filter chamber 230, the slurry is injected into the filter chamber 230 through the feed hole 231. During the filtering process, water is added to the filter chamber 230 through the water hole 232.

[0050] In this embodiment, optionally, a filter screen 222 is provided on the filter grid 220 to cooperate with the filter grid 220 to squeeze the filter cloth 500 for pressure filtering. The filter screen 222 can be flexibly replaced. A diaphragm 233 is provided on the filter chamber 230 to prevent the slurry from being squeezed out from the water hole 232. When water is added to the water hole 232, pressure can be applied to the diaphragm 233 to squeeze out water from the filter cake.

[0051] In some embodiments, a guide roller 240 is disposed outside the filter plate 200 to guide the filter cloth 500 to pass through the space between each adjacent filter plate 200. Under the guidance of the guide roller 240, one or more filter cloths 500 pass through the filter chambers 230 of each layer in sequence to perform filter pressing.

[0052] In some embodiments, a sealing strip recess 250 is provided on the outer edge of the filter plate 200, and a sealing strip 251 is provided on the sealing strip recess 250 to improve the sealing performance of the filter chamber 230. The sealing strip recess 250 can ensure that the sealing strip 251 is firmly installed and not easy to loosen.

[0053] In some embodiments, the filter plates 200 are connected with limiting sliding bars, and the filter plates 200 can be moved up and down along the limiting sliding bars, so that the up and down lifting and opening and closing movements of the filter plates 200 can be guided.

[0054] In some embodiments, when the vertical filter press of the utility model is actually working, the steps are as follows:

[0055] 1. Feed filtration

[0056] The lifting control device 121 is started, and under the pressure of the lifting and pressing plate 120, the adjacent filter plates 200 are pressurized to form a contact and closed state. At this time, the filter cloth 500 passes through the position between two adjacent filter plates 200. The feed pump pours the slurry into the filter chamber 230 through the feed hole 231, and the filtering work begins. The solid particles stay in the filter chamber 230, and the filtrate passes through the filter cloth 500 and the filter grid 220 and is discharged from the filter hole 221. As the filtering work continues, the solid particles in the filter chamber 230 gradually accumulate to form a filter cake.

[0057] 2. One-time extrusion dehydration

[0058] After the slurry forms a filter cake, the high-pressure water pump injects high-pressure water into the filter chamber 230 from the water hole 232 through the pipeline. The high-pressure water applies pressure to the diaphragm 233 and squeezes the filter cake, squeezing out part of the filtrate remaining in the filter cake and continuing to discharge from the filter hole 221, thereby reducing the moisture content of the filter cake.

[0059] 3. Filter cake washing

[0060] After the filter cake has been squeezed out once, the cleaning water pump injects the washing water into the filter chamber 230 through the pipeline and the feed hole 231 to wash the filter cake;

[0061] 4. Secondary extrusion dehydration

[0062] The high-pressure water pump is started again to inject high-pressure water into the filter chamber 230 from the water hole 232 again, and the filter cake is squeezed into the washing water in the filter cloth 500 in cooperation with the diaphragm 233;

[0063] 5. Blow dry

[0064] The compressed air is blown into the filter chamber 230 from the feed hole 231 by a fan, and the moisture in the filter cake is taken out by the high-pressure air, thereby further reducing the moisture in the filter cake;

[0065] 6. Unloading

[0066] The lifting control device 121 starts the lifting and pressing plate 120 to reset, and the adjacent filter plates 200 are separated, and the filter cloth 500 circulates, so that the filter cake on the filter cloth 500 falls into the hopper next to it and is sent away.

[0067] In the description of this specification, the description with reference to the terms "some embodiments" or "it is conceivable that" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0068] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vertical filter press, characterized in that: It comprises a machine base (100), wherein a horizontal filter plate (200) is arranged on the machine base (100), wherein each filter plate (200) is distributed in an up-down direction, and a roller (210) is arranged on the filter plate (200); A hanging plate (300) is arranged between the rollers (210) of each filter plate (200); a circular hole (310) is arranged on the upper side of the hanging plate (300); an inclined long hole (320) is arranged on the lower side of the hanging plate (300); the rollers (210) of the filter plate (200) on the upper side are inserted into the circular holes (310) of the hanging plate (300); and the rollers (210) of the filter plate (200) on the lower side are inserted into the inclined long holes (320) of the hanging plate (300); A roller boss (211) is provided on the roller (210), an elastic ring (400) is provided between the roller boss (211) and the hanging plate (300), and two ends of the elastic ring (400) respectively support the roller boss (211) and the hanging plate (300).

2. A vertical filter press according to claim 1, characterized in that: The elastic ring (400) comprises a "C"-shaped elastic portion (410), and the "C"-shaped elastic portion (410) has a snap-fit ​​opening (411).

3. A vertical filter press according to claim 2, characterized in that: The "C"-shaped elastic portion (410) is formed by bending an iron wire.

4. A vertical filter press according to claim 1, characterized in that: The elastic ring (400) comprises an outer ring (420), and the outer ring (420) has a hand-grip portion (421).

5. A vertical filter press according to claim 1, characterized in that: The machine base (100) is provided with an upper fixed top frame (110) and a lower lifting and pressing plate (120), and each of the filter plates (200) is distributed between the fixed top frame (110) and the lifting and pressing plate (120).

6. A vertical filter press according to claim 5, characterized in that: A vertical guide column (130) is arranged between the fixed top frame (110) and the lifting and clamping plate (120), and the vertical guide column (130) includes a guide piston cylinder (131) and a fixed piston rod (132), and the guide piston cylinder (131) is mounted on the fixed piston rod (132).

7. A vertical filter press according to claim 1, characterized in that: A filter grille (220) is provided on the upper side of the filter plate (200), and the filter grille (220) is connected to a filter hole (221). A recessed position serving as a filter chamber (230) is provided on the lower side of the filter plate (200), and the filter chamber (230) is connected to a material inlet hole (231) and a water through hole (232).

8. A vertical filter press according to claim 7, characterized in that: The filter grid (220) is provided with a filter screen (222), and the filter chamber (230) is provided with a diaphragm (233).

9. A vertical filter press according to claim 1, characterized in that: A guide roller (240) is arranged on the outside of the filter plate (200) for guiding the filter cloth (500) to pass through the space between each adjacent filter plate (200).

10. A vertical filter press according to claim 1, characterized in that: A sealing strip recess (250) is provided on the outer edge of the filter plate (200), and a sealing strip (251) is provided on the sealing strip recess (250).

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