Filter bag partition plate assembly and filter press

Abstract

The utility model provides a filter bag partition plate assembly and a filter press. The filter bag partition plate assembly comprises a filter bag and a partition plate assembly, the filter bag is provided with a containing cavity with an opening in one end, and the cavity is used for containing objects to be filtered; the partition plate assembly comprises at least two drainage partition plates, the drainage partition plates are arranged at intervals in the first direction, at least one filter bag is arranged between every two adjacent drainage partition plates, the drainage partition plates are used for conducting filter pressing on the filter bags, and drainage channels are formed in the faces, facing the filter bags, of the drainage partition plates. The drainage channel is used for discharging liquid generated after the drainage partition plate presses the filter bag, and the first direction is consistent with the thickness direction of the drainage partition plate. The utility model provides a filter bag partition plate assembly and a filter press, which can improve the filter pressing efficiency.

Description

Technical Field

[0001] The utility model relates to the field of filter presses, in particular to a filter bag partition assembly and a filter press. Background Art

[0002] Filter press is a commonly used solid-liquid separation equipment, widely used in coal, mining, chemical, pharmaceutical, metallurgy, food and environmental protection industries.

[0003] When used in an existing filter press, two adjacent filter plates are generally closed by external filter pressing to form a filter chamber. When the material to be filtered is passed into the filter chamber from one end, the liquid penetrates the filter plate under the action of the feed pressure, while the solid particles are trapped on the filter cloth, gradually forming a layer of filter cake. However, the separation of the filtrate is achieved by relying on the opposite effects of the pressing and sealing forces. As the feed volume increases and the amount of material to be filtered increases, the filtration efficiency will also decrease. Utility Model Content

[0004] In order to solve at least one of the problems mentioned in the background technology, the utility model provides a filter bag partition assembly and a filter press, which can improve the filter pressing efficiency.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] In a first aspect, the utility model provides a filter bag partition assembly, comprising:

[0007] The filter bag has a receiving cavity with one end open, and the cavity is used to hold the object to be filtered;

[0008] A partition assembly, the partition assembly includes at least two drainage partitions, each drainage partition is spaced apart along a first direction, at least one filter bag is arranged between two adjacent drainage partitions, the drainage partition is used for filtering the filter bag, the drainage partition has a drainage channel on one side facing the filter bag, the drainage channel is used for discharging liquid generated after the drainage partition filters the filter bag, wherein the first direction is consistent with the thickness direction of the drainage partition.

[0009] As an optional embodiment, the drainage baffle has a plurality of protrusions on a surface facing the filter bag, and there is a gap between two adjacent protrusions, and the gap forms a drainage channel.

[0010] As an optional embodiment, a groove is provided on a surface of the drainage baffle plate facing the filter bag, and two ends of the groove extend to the top and bottom of the drainage baffle plate respectively, and the groove forms a drainage channel.

[0011] As an optional embodiment, two adjacent drainage baffles have a protruding first limiting portion and a second limiting portion on their opposite sides, respectively, and the sum of the heights of the first limiting portion and the second limiting portion is greater than twice the height of the protrusion. When the drainage baffle presses the filter bag, the first limiting portion and the second limiting portion abut or clamp against each other.

[0012] As an optional embodiment, the end of the first limiting portion facing the second limiting portion has a slot, and the end of the second limiting portion facing the first limiting portion has a boss matching the slot. When the drainage baffle presses the filter bag, the slots and bosses on two adjacent drainage baffles are snapped together.

[0013] As an optional embodiment, it also includes a linkage component, which is connected between the drainage baffles, and each drainage baffle is configured to move synchronously under the drive of the linkage component.

[0014] As an optional embodiment, the linkage assembly includes at least one hinge, which is diamond-shaped, with four sides of the hinge hinged end to end, and two diagonal corners of the hinge respectively hinged to two adjacent partitions. When the partitions move closer or farther away, the hinge is compressed or stretched accordingly.

[0015] As an optional implementation, the protrusions are columnar structures, and the protrusions are arranged in an array on the drainage baffle.

[0016] As an optional embodiment, the opening is located at the bottom of the filter bag, and the opening is configured to be in a closed state when containing the material to be filtered, and to be opened for discharge when the drainage partitions are separated from each other.

[0017] In a second aspect, the utility model further provides a filter press, comprising a frame and a filter bag partition assembly in any one of the above embodiments, wherein the filter bag partition assembly is movably disposed on the frame.

[0018] The filter bag partition assembly provided by the utility model comprises a filter bag and a partition assembly, the filter bag has a containing cavity with an opening at one end, and the cavity is used to hold the material to be filtered; the partition assembly comprises at least two drainage partitions, each drainage partition is arranged at intervals along a first direction, at least one filter bag is arranged between two adjacent drainage partitions, the drainage partition is used to filter the filter bag, and the drainage partition has a drainage channel on one side facing the filter bag, and the drainage channel is used to discharge the liquid generated after the drainage partition filters the filter bag, wherein the first direction is consistent with the thickness direction of the drainage partition.

[0019] The filter bag partition assembly provided by the utility model fully filters the filter bag through the arranged drainage partition. After the extrusion is completed, the filter cake can be discharged from the opening of the filter bag. During the filtration process, the seeping filtrate can flow out in time from the drainage channel on the drainage partition to avoid the filtrate remaining between the filter bag and the drainage partition, thereby re-seeding into the filter cake. Therefore, the filter bag partition assembly provided by the utility model can reduce the water content of the filter cake, make the filtration more thorough, and improve the filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 A schematic diagram of the overall structure of the filter bag partition assembly provided by an embodiment of the utility model;

[0022] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0023] Figure 3 for Figure 1 The main view;

[0024] Figure 4 for Figure 3 Enlarged view of point B in the middle.

[0025] Description of reference numerals:

[0026] 100-filter bag partition assembly;

[0027] 110-filter bag;

[0028] 120-drainage baffle;

[0029] 121-protrusion;

[0030] 122-first limiting portion;

[0031] 123- second limiting portion;

[0032] 130- linkage assembly;

[0033] X - first direction. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] In the application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0036] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0037] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0038] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0039] When used in an existing filter press, two adjacent filter plates are generally closed by external filter pressing to form a filter cavity. When the material to be filtered is passed into the filter cavity from one end, the liquid penetrates the filter plate under the action of the feed pressure, while the solid particles are trapped on the filter cloth, gradually forming a layer of filter cake. However, the separation of the filtrate is achieved by relying on the opposite effects of squeezing and sealing forces. As the feed amount increases and the amount of material to be filtered increases, the filtration efficiency will also decrease.

[0040] In view of this, the utility model provides a filter bag partition assembly, including a filter bag and a partition assembly, the filter bag has a receiving cavity with an opening at one end, the cavity is used to hold the object to be filtered; the partition assembly includes at least two drainage partitions, each drainage partition is arranged at intervals along the first direction, at least one filter bag is arranged between two adjacent drainage partitions, the drainage partition is used to filter the filter bag, and the drainage partition has a drainage channel on one side facing the filter bag, and the drainage channel is used to discharge the liquid generated after the drainage partition filters the filter bag. The filter bag is fully filtered by the provided drainage partition, after the extrusion is completed, the filter cake can be discharged from the opening of the filter bag, during the filtering process, the seeped filtrate can flow out in time from the drainage channel on the drainage partition, avoiding the filtrate staying around the filter bag, thereby re-infiltrating into the filter cake, reducing the water content of the filter cake, and improving the filtering efficiency.

[0041] Figure 1 A schematic diagram of the overall structure of the filter bag partition assembly provided by an embodiment of the utility model; Figure 2 for Figure 1 The enlarged view of point A in the middle; Figure 3 for Figure 1 The main view of Figure 4 for Figure 3 Enlarged view of point B in the middle.

[0042] You can refer to Figures 1 to 4 The embodiment of the utility model provides a filter bag partition assembly 100, including a filter bag 110 and a partition assembly, the filter bag 110 has a receiving cavity with one end open, and the cavity is used to hold the filter material; the partition assembly includes at least two drainage partitions 120, and the drainage partitions 120 are arranged at intervals along the first direction X, and at least one filter bag 110 is arranged between two adjacent drainage partitions 120, and the drainage partition 120 is used to filter the filter bag 110. The drainage partition 120 has a drainage channel on one side facing the filter bag 110, and the drainage channel is used to discharge the liquid generated after the drainage partition 120 filters the filter bag 110, wherein the first direction X is consistent with the thickness direction of the drainage partition 120.

[0043] like Figure 1 As shown, the drainage baffles 120 can be rectangular or square as a whole, the filter bags 110 are sandwiched between the drainage baffles 120, and multiple filter bags 110 can be arranged between two drainage baffles 120. The multiple filter bags 110 are squeezed simultaneously through the two drainage baffles 120 to simplify the overall structure of the filter bag baffle assembly 100.

[0044] It can be understood that the filter bag 110 and the partition assembly can be movably arranged on the filter press. When pressure is applied to the drainage partition 120 through the driving mechanism, the drainage partitions 120 can be close to each other, thereby squeezing the filter bag 110 sandwiched therebetween.

[0045] Among them, the opening on the cavity of the filter bag 110 can be used for unloading the filter bag 110. It can be understood that the opening can be in a closed state when the filter bag 110 contains the material to be filtered, and is opened for unloading when the drainage partitions 120 are separated from each other. Specifically, the opening can be located at the bottom of the filter bag 110. In this way, when the opening of the filter bag 110 is opened, the filter cake formed in the filter bag 110 can slide out of the filter bag 110 under its own gravity, which is more convenient for unloading.

[0046] Among them, a feed inlet can be set on one side wall of the accommodating cavity of the filter bag 110, and the material to be filtered can enter the accommodating cavity of the filter bag from the feed inlet. Different from the principle of the traditional plate and frame filter press to achieve filtrate separation through the opposite action of squeezing and sealing force, the present application does not need to rely on reverse pressure for sealing. The design of the filter bag 110 makes the filtration process pressurize the material in the filter bag 110 through the two drainage partitions 120. The filter bag 110 can not only maintain good sealing performance under high pressure environment, but also avoid the phenomenon of material spraying, thereby improving the filtrate separation efficiency.

[0047] The filter bag 110 may be made of soft fabric material to facilitate squeezing thereof.

[0048] The filter bag partition assembly 100 provided in the embodiment of the utility model fully filters the filter bag 110 through the set drainage partition 120. After the extrusion is completed, the filter cake can be discharged from the opening of the filter bag 110. During the filtration process, the seeping filtrate can flow out from the drainage channel on the drainage partition 120 in time to avoid the filtrate remaining between the filter bag 110 and the drainage partition 120, thereby re-infiltrating into the filter cake. Therefore, the filter bag partition assembly 100 provided in the embodiment of the utility model can reduce the water content of the filter cake, make the filtration more thorough, and improve the filtration efficiency.

[0049] In the above embodiments, the drainage passage may be formed in a variety of ways. For example, the drainage baffle 120 may have a plurality of protrusions 121 on one side facing the filter bag 110 , and there may be a gap between two adjacent protrusions 121 , thereby forming a drainage channel by the gap.

[0050] For another example, the drainage baffle 120 may have a groove on one side facing the filter bag 110, and the two ends of the groove extend to the top and bottom of the drainage baffle 120, respectively, so as to form a drainage channel through the groove. Whether the drainage channel is formed through the gap between the protrusions 121 or the groove, the filtrate can be discharged in time, and the filtrate is prevented from remaining between the drainage baffle 120 and the filter bag 110, so that when the drainage baffle 120 is separated, the remaining part of the filtrate re-infiltrates into the filter cake in the filter bag 110, resulting in incomplete filtration.

[0051] In the above embodiment, a first stopper 122 and a second stopper 123 may be provided on opposite sides of two adjacent drainage baffles 120, and the sum of the heights of the first stopper 122 and the second stopper 123 may be greater than twice the height of the protrusion 121. When the drainage baffle 120 presses the filter bag 110, the first stopper 122 and the second stopper 123 may abut or engage with each other. By providing the first stopper 122 and the second stopper 123, the distance between the drainage baffles 120 may be limited, which may prevent the pressure plate from applying excessive pressure to the filter bag 110, thereby damaging the filter bag 110, and may also prevent the drainage baffle 120 from applying insufficient pressure, thereby causing the filter bag 110 to be not thoroughly pressed. Therefore, the heights of the first stopper 122 and the second stopper 123 may be specifically designed according to actual needs. It should be noted that by limiting the sum of the heights of the first limiting portion 122 and the second limiting portion 123 to be greater than twice the height of the protrusion 121, it is possible to ensure that the first limiting portion 122 and the second limiting portion 123 contact each other before the protrusions 121 on the adjacent drainage baffles 120 contact each other, thereby preventing the drainage baffles 120 from over-squeezing the filter bag 110. Specifically, the sum of the heights of the first limiting portion 122 and the second limiting portion 123 can be greater than the sum of twice the height of the protrusion 121 and the original thickness of the filter bag 110 before the material is fed, thereby further preventing the filter bag 110 from being over-squeezed.

[0052] In the above embodiment, specifically, the end of the first limiting part 122 facing the second limiting part 123 can be provided with a slot, and the end of the second limiting part 123 facing the first limiting part 122 can be provided with a boss matching the slot, and when the drainage baffle 120 presses the filter bag 110, the slots and bosses on two adjacent drainage baffles 120 are clamped together. This clamping mode of the slots and bosses can play a guiding role. It can be understood that when the drainage baffle 120 squeezes the filter bag 110, the protrusion 121 on the first limiting part 122 first enters the slot on the second limiting part 123, thereby avoiding the relative misalignment between adjacent drainage baffles 120, and ensuring the stability of the drainage baffle 120 during the filtration process.

[0053] In the above embodiment, the filter bag partition assembly 100 may further include a linkage assembly 130. When the number of the drainage partitions 120 is greater than or equal to three, in order to ensure that all the drainage partitions 120 in one filter bag partition assembly 100 move uniformly, a linkage assembly 130 is provided. The linkage assembly 130 is connected between the drainage partitions 120, and the drainage partitions 120 are configured to move synchronously under the drive of the linkage assembly 130. The drainage partitions 120 can be connected to each other through the linkage assembly 130, so that the drainage partitions 120 can be kept equidistantly distributed during the movement, thereby ensuring that the pressure of the drainage partitions 120 on the filter bags 110 is consistent, improving the coordination of the drainage partitions 120, and improving the effect and efficiency of the filter press.

[0054] like Figure 3 and Figure 4 As shown, in the above embodiment, the linkage assembly 130 may specifically include at least one hinge, which may be in a rhombus shape, with four sides of the hinge hinged end to end, and two diagonal hinges of the hinge respectively hinged to two adjacent partitions, and when the partitions are close to or away from each other, the hinge is compressed or stretched accordingly. It can be understood that when the drainage partitions 120 are close to or away from each other, the length of the diagonal lines of each hinge along the first direction X can always remain consistent, so that the drainage partitions 120 can be kept equidistant. Specifically, the above hinge structure can be set on opposite sides of the partition assembly, so that the structure of the partition assembly is more stable.

[0055] In the above embodiment, the protrusions 121 on the drainage baffle 120 may be specifically in a columnar structure, and the protrusions 121 are arranged in an array on the drainage baffle 120. The protrusions 121 are arranged in a columnar shape. On the one hand, the edges and corners or sharp corners on the protrusions 121 can be reduced to prevent the edges and corners or sharp corners from damaging the filter bag 110 when squeezed. On the other hand, the columnar protrusions 121 have a simple structure and are more convenient to process.

[0056] The filter bag partition assembly 100 provided in the embodiment of the utility model includes a filter bag 110 and a partition assembly, the filter bag 110 has a receiving cavity with an opening at one end, and the cavity is used to hold the filter material; the partition assembly includes at least two drainage partitions 120, and the drainage partitions 120 are arranged at intervals along the first direction X, and at least one filter bag 110 is arranged between two adjacent drainage partitions 120, and the drainage partition 120 is used to filter the filter bag 110. The drainage partition 120 has a drainage channel on one side facing the filter bag 110, and the drainage channel is used to discharge the liquid generated after the drainage partition 120 filters the filter bag 110, wherein the first direction X is consistent with the thickness direction of the drainage partition 120.

[0057] The filter bag partition assembly 100 provided in the embodiment of the utility model fully filters the filter bag 110 through the set drainage partition 120. After the extrusion is completed, the filter cake can be discharged from the opening of the filter bag 110. During the filtration process, the seeping filtrate can flow out from the drainage channel on the drainage partition 120 in time to avoid the filtrate remaining between the filter bag 110 and the drainage partition 120, thereby re-infiltrating into the filter cake. Therefore, the filter bag partition assembly 100 provided in the embodiment of the utility model can reduce the water content of the filter cake, make the filtration more thorough, and improve the filtration efficiency.

[0058] In addition, the embodiment of the utility model further provides a filter press, comprising a frame and at least one filter bag partition assembly 100 in any one of the above embodiments, each filter bag partition assembly 100 can be independent of each other, and the filter bag partition assembly 100 can be movably arranged on the frame. The filter press can filter the filter material more efficiently and thoroughly through the filter bag partition assembly 100, thereby improving the filter pressing quality and working efficiency of the filter press.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A filter bag partition assembly, characterized in that: include: The filter bag has a receiving cavity with one end open, and the cavity is used to contain the object to be filtered; A partition assembly, wherein the partition assembly includes at least two drainage partitions, each of the drainage partitions is spaced apart along a first direction, at least one filter bag is arranged between two adjacent drainage partitions, the drainage partition is used for filtering the filter bag, the drainage partition has a drainage channel on one side facing the filter bag, and the drainage channel is used for discharging liquid generated after the drainage partition filters the filter bag, wherein the first direction is consistent with the thickness direction of the drainage partition.

2. The filter bag partition assembly according to claim 1, characterized in that: The drainage partition has a plurality of protrusions on one side facing the filter bag, and there is a gap between two adjacent protrusions, and the gap forms the drainage channel.

3. The filter bag partition assembly according to claim 1, characterized in that: The drainage baffle has a groove on one side facing the filter bag, and two ends of the groove extend to the top and bottom of the drainage baffle respectively, and the groove forms the drainage channel.

4. The filter bag partition assembly according to claim 2, characterized in that: The opposite surfaces of two adjacent drainage baffles are respectively provided with a protruding first limiting portion and a second limiting portion, the sum of the heights of the first limiting portion and the second limiting portion is greater than twice the height of the protrusion, and when the drainage baffles filter the filter bag, the first limiting portion and the second limiting portion abut or clamp against each other.

5. The filter bag partition assembly according to claim 4, characterized in that: The end of the first limiting portion facing the second limiting portion has a slot, and the end of the second limiting portion facing the first limiting portion has a boss matching the slot. When the drainage baffles filter the filter bag, the slots and bosses on two adjacent drainage baffles are snapped together.

6. The filter bag partition assembly according to any one of claims 1 to 3, characterized in that: It also includes a linkage component, which is connected between the drainage baffles, and each drainage baffle is configured to move synchronously under the drive of the linkage component.

7. The filter bag partition assembly according to claim 6, characterized in that: The linkage assembly includes at least one hinge, which is rhombus-shaped, with four sides of the hinge hinged end to end, and two diagonal corners of the hinge respectively hinged to two adjacent partitions. When the partitions move closer or farther away, the hinge is compressed or stretched accordingly.

8. The filter bag partition assembly according to claim 2, characterized in that: The protrusions are columnar structures, and the protrusions are arranged in an array on the drainage partition.

9. The filter bag partition assembly according to any one of claims 1 to 3, characterized in that: The opening is located at the bottom of the filter bag, and the opening is configured to be in a closed state when containing the material to be filtered, and to be opened for discharge when the drainage partitions are separated from each other.

10. A filter press, characterized in that: The invention comprises a frame and the filter bag partition assembly as described in any one of claims 1 to 9, wherein the filter bag partition assembly is movably arranged on the frame.

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