Filter press feed structure and filter press

Abstract

The utility model discloses filter press feed structure and filter press, filter press feed structure, including feed base and movable pressure seat, be equipped with a plurality of filter plate assemblies between feed base and movable pressure seat, be equipped with the public feed channel on feed base, movable pressure seat and filter plate assembly, its characterized in that: filter plate assembly includes filter plate, the end face of filter plate corresponds the position of public feed channel and is equipped with feed groove, is equipped with feed pressure tongue on feed groove, and feed pressure tongue includes fixed section and elastic upper section, and the through -hole of fixed section is equipped with the public feed channel, and the end face of fixed section and elastic upper section is equipped with the feed flow guide groove of intercommunication through -hole, and filter press includes using above -mentioned filter press feed structure. The utility model has no short circuit problem of wearing through, and feed branch channel is not easy to block, and cleaning is convenient, can adopt the filter cloth structure of no hole, and the filter cloth whole can remove after filter chamber opens and shuts, and it is convenient to wash, replaces, and maintenance is convenient.

Description

Technical Field

[0001] This utility model relates to the field of filter press technology, and in particular to the filter press feeding structure and filter press. Background Technology

[0002] Filter presses are widely accepted in the market due to their good solid-liquid separation effect, simple structure, and relatively low maintenance cost. They are widely used in solid-liquid separation processes in various industries. Currently, the most common filter press chamber structures on the market can be divided into chamber filter presses. Their characteristics are simple manufacturing, good single solid-liquid separation and dewatering effect, and the largest market share. However, due to the limitation of the common feed channel structure inside the plate, when liquid or gas needs to flow through after the filter cake is formed, the liquid or gas that needs to flow through the common feed channel inside the plate will experience short-circuiting due to the common feed channel structure inside the plate. Therefore, chamber filter presses are often not the first choice when a flow-through process is required. Secondly, there is the plate and frame filter press. This type consists of one plate and one frame on one side, plus another plate on the other side. Its advantages include convenient filter cloth installation, equally good filtration effect, and better flow rate than chamber filter presses. However, due to its separate plate and frame structure, operation can be overly cumbersome in practice. The filter frame structure limits smooth cake discharge, requiring each cake to be removed individually and repeatedly, thus greatly limiting market acceptance. Finally, there is the single-inlet double-chamber filter press, which combines the advantages of the above two types. This model achieves non-short-circuit flow rate and relatively smooth cake discharge, but its closed feed channel and porous filter cloth structure also add inconvenience in practical use. Utility Model Content

[0003] The purpose of this utility model is to provide a filter press feeding structure and a filter press, which solves the problem of short-circuit flow in chamber filter presses and the disadvantages of easy blockage and difficulty in cleaning of the feed branch channel in the closed structure of single-inlet double-chamber filter press. No filter cloth opening is required, and the filter cloth can be moved as a whole after the filter chamber is opened and closed, which is convenient for cleaning and replacement.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] The filter press feeding structure includes a feeding base and a movable pressing base. Multiple filter plate assemblies are arranged between the feeding base and the movable pressing base. A common feeding channel is opened on the feeding base, the movable pressing base, and the filter plate assemblies. The filter plate assembly includes filter plates. A feeding groove is opened on the end face of the filter plate corresponding to the position of the common feeding channel. A feeding tongue is provided on the feeding groove. The feeding tongue includes a fixed section and an elastic upturned section. A through hole adapted to the common feeding channel is opened on the fixed section. A feeding guide groove communicating with the through hole is provided on the end face of the fixed section and the elastic upturned section.

[0006] Furthermore, reinforcing ribs are provided on the end faces of the fixed section and the elastic upturned section, and the feed guide grooves are respectively located on both sides of the reinforcing ribs.

[0007] Furthermore, the movable pressing machine base is equipped with a feed channel interconnection pipe that connects the two common feed channels.

[0008] Furthermore, the cross-sectional shape of both the feed trough and the feed pressure tongue is trapezoidal.

[0009] Furthermore, the lower end of the fixed section is provided with a fixed cylinder adapted to the common feed channel. The fixed cylinder is coaxially arranged with the through hole, and the inner diameter of the fixed cylinder is the same as the inner diameter of the through hole. An anti-detachment ring is provided on the outer wall of the fixed cylinder.

[0010] Furthermore, the filter plate is equipped with filter pins that are adapted to the filter cloth.

[0011] This utility model also provides a filter press, including the above-mentioned filter press feeding structure.

[0012] This utility model has the following advantages:

[0013] 1. There is no short-circuit flow problem, and the feed branch channel is not easily blocked and is easy to clean.

[0014] 2. A non-porous filter cloth structure can be adopted, and the filter cloth can be moved as a whole after the filter chamber is opened and closed, which is convenient for cleaning and maintenance. Attached Figure Description

[0015] Figure 1 This is a diagram showing the state of the filter chamber when it is open.

[0016] Figure 2 This is a state diagram of a closed filter chamber.

[0017] Figure 3 This is a schematic diagram of the feed pressure tongue.

[0018] Figure 4 This is a side view of the feed pressure tongue.

[0019] In the diagram, 1-feeding machine base, 2-movable clamping machine base, 3-common feeding channel, 4-filter plate, 5-feeding pressure tongue, 51-fixed section, 52-elastic upturned section, 53-through hole, 54-feeding guide groove, 55-reinforcing rib, 56-fixed cylinder, 57-anti-detachment ring, 6-filter cloth, 7-feeding channel interconnection pipe, 8-filter nail. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] refer to Figure 1-4 As shown, one embodiment of this utility model is as follows:

[0027] The filter press feeding structure includes a feeding base 1 and a movable pressing base 2. Multiple filter plate assemblies are provided between the feeding base 1 and the movable pressing base 2. A common feeding channel 3 is provided on the feeding base 1, the movable pressing base 2 and the filter plate assemblies. The filter plate assembly includes a filter plate 4. A feeding groove is provided on the end face of the filter plate 4 corresponding to the position of the common feeding channel 3. A feeding tongue 5 is provided on the feeding groove. The feeding tongue 5 includes a fixed section 51 and an elastic upturned section 52. A through hole 53 adapted to the common feeding channel 3 is provided on the fixed section 51. A feeding guide groove 54 communicating with the through hole 53 is provided on the end face of the fixed section 51 and the elastic upturned section 52.

[0028] As shown in the figure, this application optimizes the feeding structure of a single-inlet double-chamber filter press by relocating the existing closed feeding structure (feed branch channel) to the contact position between the filter plates, thus changing it into an open structure. Figure 1 As shown, in the open / closed state of the filter chamber (during cake unloading), the elastic upward-curving section 52 of the feed pressure tongue extends beyond the filter plate surface. At this time, the filter cloth 6 is also in a non-fixed, movable state. In this state, the filter cloth can move vertically up and down via the external mechanism, thus providing significant operational optimization space in the cleaning and cake unloading process. Furthermore, by using the aforementioned feeding structure, filter cloths without any pre-reserved functional holes or channels can be used, providing convenience for filter cloth manufacturing, replacement, and maintenance. Figure 2 As shown, when the filter chamber is closed, the elastic upward-curving sections of the feed tongue press against each other, thus pressing the filter cloth firmly onto the surface of the filter plate and the back of the feed tongue. The feed guide channel connects the common feed channel to the filter chamber. After the filter chamber opens and closes, the elastic upward-curving sections of the feed tongue return to their original position. Figure 1 The image shows the upward tilt that extends beyond the surface of the filter plate.

[0029] By changing the existing closed feeding structure to an open structure, the feeding branch channel is less prone to clogging, and even if it does become clogged, it is easy to clean. Furthermore, a non-porous filter cloth structure can be used. For filter cloth installation, it can be directly hung on the filter plate. After the filter chamber opens and closes, the filter cloth hangs freely between the filter plate 4 and the elastic upturned section 52. The entire filter cloth is movable, facilitating cleaning and maintenance.

[0030] The feed pressure tongue 5 can be made of a soft, resilient elastic material such as rubber or TPE elastomer, ensuring it can quickly return to its upward-curved state when no force is applied. Reinforcing ribs 55 are provided on the end faces of the fixed section 51 and the elastic upward-curved section 52, with feed guide grooves 54 located on both sides of the reinforcing ribs 55. The reinforcing rib design effectively improves the elastic deformation recovery ability of the feed pressure tongue 5, increases overall strength, and extends service life.

[0031] Since the feed tongue 5 is made of elastic material, and most of the elastic upturned section 52 is in an upturned state that extends beyond the filter plate surface, in order to ensure that it can be smoothly inserted into the feed trough when under pressure, in specific implementation, the cross-sectional shape of both the feed trough and the feed tongue 5 is trapezoidal. The trapezoidal structure design can not only allow the elastic upturned section to smoothly enter the feed trough when under pressure, but also ensure the size of its upper end face, so as to facilitate the setting of reinforcing ribs 55 and two feed guide channels 54 to ensure smooth feeding.

[0032] Understandably, the choice of a trapezoidal structure is mainly to ensure that the elastic, upward-curving section can smoothly enter the feed trough when it is under pressure. Under this premise, it is possible to choose to design only the feed tongue 5 as a trapezoidal structure.

[0033] To facilitate the replacement of the feed pressure tongue, the lower end of the fixed section 51 is provided with a fixed cylinder 56 adapted to the common feed channel 3, which is coaxially arranged with the through hole 53, and the inner diameter of the fixed cylinder 56 is the same as the inner diameter of the through hole 53. An anti-detachment ring 57 is provided on the outer wall of the fixed cylinder 56.

[0034] By inserting the fixing cylinder 56 into the common feeding channel 3, the feeding tongue 5 is connected in a snap-fit ​​manner, which facilitates the disassembly and maintenance of the feeding tongue 5. The anti-detachment ring 57 can prevent the feeding tongue 5 from falling off during normal use. Correspondingly, the inner side wall of the common feeding channel 3 is provided with a groove that fits the anti-detachment ring 57.

[0035] It is understandable that the anti-detachment ring 57 can be selected as either option depending on the actual situation. If the fixed cylinder 56 can be directly inserted into the common feed channel 3 to ensure stable fixation, the anti-detachment ring may not be required.

[0036] Furthermore, the movable pressing machine base 2 is provided with a feed channel interconnection pipe 7 that connects the two common feed channels 3.

[0037] The filter plate 4 is equipped with filter nails 8 that are adapted to the filter cloth.

[0038] The feed channel interconnection pipe 7 enables communication between the common feed channels 3 on both sides of the filter plate. It is understood that the feed channel interconnection pipe 7 is designed to accommodate situations where only one side of the common feed channel is connected to the feed pipe. If both sides of the common feed channels 3 are directly connected to the feed pipe fittings, the feed channel interconnection pipe 7 may not be necessary.

[0039] This embodiment provides a filter press, which includes the above-described filter press feeding structure.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A filter press feeding structure, comprising a feeding base and a movable pressing base, wherein multiple filter plate assemblies are disposed between the feeding base and the movable pressing base, and a common feeding channel is provided on the feeding base, the movable pressing base, and the filter plate assemblies, characterized in that: The filter plate assembly includes a filter plate. A feed groove is provided on the end face of the filter plate corresponding to the position of the common feed channel. A feed tongue is provided on the feed groove. The feed tongue includes a fixed section and an elastic upturned section. A through hole adapted to the common feed channel is provided on the fixed section. A feed guide groove communicating with the through hole is provided on the end face of the fixed section and the elastic upturned section.

2. The filter press feeding structure according to claim 1, characterized in that: The end faces of the fixed section and the elastic upturned section are provided with reinforcing ribs, and the feed guide grooves are respectively located on both sides of the reinforcing ribs.

3. The filter press feeding structure according to claim 1, characterized in that: The movable pressing base is provided with a feed channel interconnection pipe that connects the two common feed channels.

4. The filter press feeding structure according to claim 1, characterized in that: Both the feed trough and the feed pressure tongue have trapezoidal cross-sectional shapes.

5. The filter press feeding structure according to claim 1, characterized in that: The lower end of the fixed section is provided with a fixed cylinder adapted to the common feeding channel. The fixed cylinder is coaxially arranged with the through hole, and the inner diameter of the fixed cylinder is the same as the inner diameter of the through hole. An anti-detachment ring is provided on the outer wall of the fixed cylinder.

6. The filter press feeding structure according to claim 1, characterized in that: The filter plate is equipped with filter nails that are adapted to the filter cloth.

7. A filter press, characterized in that: Includes the filter press feeding structure as described in any one of claims 1-6.

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