Filter press plate frame convenient for desliming

Abstract

The utility model discloses a filter press plate frame convenient for desliming, which relates to the technical field of plate-and-frame filter presses and particularly comprises a filter press plate frame, an air bag layer is arranged in the filter press plate frame, filter layers are symmetrically arranged on two sides of the air bag layer, and the filter layers are respectively mounted on filter pressing end surfaces of the filter press plate frame. The overflowing channel penetrates through the filtering layer and the air bag layer; the filtering surface of the filtering layer is in a flexible state so as to be conveniently supported by the air bag layer, and when two adjacent filter press plate frames are separated after filter pressing is completed, the air bag layer is started and is used for supporting the filtering layer from inside to outside, so that filter cake mud remaining on the filtering layer falls off; the filter mud is prevented from being accumulated on the filter layer to influence the filter pressing effect of the next filter pressing, and the filter mud on the filter layer is cleaned to improve the filter (filter pressing) effect of the filter press.

Description

Technical Field

[0001] The utility model belongs to the technical field of plate-frame filter presses, and particularly relates to a plate-frame filter press that is convenient for desludging. Background Art

[0002] A filter press is a mechanical device that applies a certain pressure to a suspended slurry material to cause the liquid to seep out. It is often used for solid-liquid separation operations. It is currently widely used in chemical, pharmaceutical, metallurgical, dye, food and other industries. The plate and frame are the core part of the filter press, and a closed chamber is formed between every two adjacent plate frames. When all the filter plates of the filter press are sealed together, the filter plates form a full-length channel through the plate frame. The feed pump presses the suspension into the closed chamber through the large-hole channel at the top of the plate frame. The suspension passes through the filter cloth and becomes filtrate. At the same time, the solids remain and fill the chamber to become a filter cake. The filtrate flows along the filter plate groove in the plate frame to the channel at the corner of the plate frame, enters the filtrate channel inside the plate frame, and then is discharged from the plate frame in a centralized manner, completing the dehydration production of solid-liquid suspended slurry materials.

[0003] However, the composition of the suspended slurry material filtered by the filter press is complex, containing different acidic and alkaline substances, viscous substances or chemical ions, which slowly block the tiny filtrate channels inside the plate frame during the filtration process, affecting the flow rate of the filtrate, resulting in the filtrate not being discharged in time, reducing the filtration efficiency. The filtration effect is reduced, the water content of the filter cake increases, and its viscosity also increases. When the filtration operation is completed, the two adjacent plates and frames are separated, and the filter cake sticks to the plate frame and is not easy to fall off. The residual filter material attached to the plate frame affects the filtration operation of the next batch of suspended slurry materials.

[0004] In order to solve the problem that filter mud is difficult to fall off and improve the efficiency of filter pressing, it is urgent to design a filter press plate frame that is easy to remove mud. Utility Model Content

[0005] The purpose of the utility model is to provide a filter press plate frame that is convenient for desludging. The filter press plate frame can use the airbag expansion method to push the filter cake or attached filter mud out of the plate frame during the desludging process after the filtration is completed, thereby improving the desludging efficiency and ensuring the smooth progress of subsequent filtration operations. The specific technical solution is as follows:

[0006] A filter press plate frame for desludging, comprising a filter press plate frame, wherein a flow passage is provided at the center of the filter press plate frame;

[0007] An air bag layer is arranged inside the filter press plate frame, and filter layers are symmetrically arranged on both sides of the air bag layer, and the filter layers are installed on the filter press plate frame;

[0008] The filter surface of the filter layer is in a flexible state, and the airbag layer is inflated, and the airbag layer expands to prop up the filter surface of the filter layer from the inside to the outside.

[0009] Preferably, a filter cake mud accommodating area is provided between two adjacent filter press plate frames.

[0010] Preferably, a dialysate containing area is provided between the filter layers on both sides.

[0011] Preferably, a dialysate discharge channel is provided on the filter press plate frame, and the dialysate discharge channel is connected to the dialysate containing area. The dialysate discharge channel is not connected to the filter cake mud containing area, and the dialysate discharge channels on two adjacent filter press plate frames are connected to each other.

[0012] Preferably, the airbag layer includes an airbag, an airbag mounting frame, a gas control component, a vent nozzle and a gas pipeline. The airbag mounting frame is installed on the filter press plate frame, the airbag is installed in the area framed by the airbag mounting frame, the vent nozzle is arranged on the border of the filter press plate frame, the gas pipeline is connected to the vent nozzle, and the other end of the gas pipeline is connected to the gas control component. The gas control component is arranged on the outside, and the airbag, gas control component, vent nozzle and gas pipeline are interconnected.

[0013] Preferably, the four corners of the airbag mounting frame are respectively connected to the midpoints of the frame of the filter press plate frame.

[0014] Preferably, the flow passage is arranged through the center of the airbag.

[0015] Preferably, pulleys are provided on opposite sides of the filter press plate frame, and the pulleys slide on slide rails on the filter press beam.

[0016] Compared with the existing technology, the utility model has the following beneficial effects:

[0017] The utility model provides a filter press plate frame which is convenient for desludging. An air bag layer is arranged inside the plate frame. When two adjacent filter press plate frames are separated after the filtration is completed, the air bag layer is started to prop up the filter layer from the inside to the outside, so that the filter cake mud remaining on the filter layer falls off, and the filter mud is prevented from accumulating on the filter layer and affecting the filtration effect of the next filtration. The filtration (filtration) effect of the filter press is improved by cleaning the filter mud on the filter layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0019] Figure 1 It is a schematic diagram of the plate-frame area structure of the filter press of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the utility model.

[0021] Description of main reference numerals:

[0022] 100-filter press plate frame, 110-flow channel, 120-filter cake mud containing area, 130-dialysate containing area, 140-dialysate discharge channel, 150-pulley, 200-air bag layer, 210-air bag, 220-air bag mounting frame, 230-ventilation nozzle, 240-gas pipeline, 300-filter layer. DETAILED DESCRIPTION

[0023] 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 in 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.

[0024] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inside", "outside", "inside", "outside" and the like indicate orientations or positional relationships 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 referred device or element 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.

[0025] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If the terms "first", "second", "third" are described, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is a description of the embodiments of the present invention based on its overall structure.

[0027] Example

[0028] like Figure 1 to Figure 2 As shown, a filter press plate frame for desludging, specifically comprising a filter press plate frame 100, wherein a flow passage 110 is provided at the center of the filter press plate frame 100, and a pulley 150 is provided on the opposite side of the filter press plate frame 100, wherein the pulley 150 slides on a slide rail provided on a filter press beam, wherein the pulley 150 is a conventional arrangement;

[0029] The filter press plate frame 100 is provided with an airbag layer 200 inside, and filter layers 300 are symmetrically provided on both sides of the airbag layer 200. The filter layers 300 are respectively installed on the filter pressing end faces of the filter press plate frame 100, and the flow passage 110 is provided through the filter layer 300 and the airbag layer 200;

[0030] The filtering surface of the filter layer 300 is in a flexible state to facilitate the airbag layer 200 to hold it up. When the two adjacent filter press plate frames 100 are separated after the filtration is completed, the airbag layer 200 is started and the filter layer 300 is held up from the inside to the outside, so that the filter cake mud remaining on the filter layer 300 falls off, preventing the filter mud from accumulating on the filter layer and affecting the filtration effect of the next filtration. The filtration (filtration) effect of the filter press is improved by cleaning the filter mud on the filter layer 300.

[0031] Furthermore, a filter cake mud receiving area 120 is provided between two adjacent filter press plate frames 100, a dialysate receiving area 130 is provided between the filter layers 300 on both sides, and a dialysate discharge channel 140 is provided on the filter press plate frame 100, and the dialysate discharge channel 140 is communicated with the dialysate receiving area 130;

[0032] Before filtration, the filter press plates and frames 100 on the filter press are pushed by the moving slider to be close to each other and pressed tightly, so that the filter cake mud receiving area 120 is in a sealed area, and the suspended slurry material flows into the flow passage 110 and fills the filter cake mud receiving area 120 between each filter press plate frame 100 under the pressure of the suspended slurry material. The pore size of the filter layer 300 is retained in the filter cake mud receiving area 120, and the filtrate obtained after filtering through the filter layer 300 is retained in the dialysate receiving area 130. The dialysate retained in the dialysate receiving area 130 is collected and discharged in the dialysate discharge channel 140. The dialysate discharge channel 140 is not connected to the filter cake mud receiving area 120, and the dialysate discharge channels 140 between each filter press plate frame 100 are connected to each other.

[0033] Furthermore, the airbag layer 200 includes an airbag 210, an airbag mounting frame 220, a gas control component, a vent nozzle 230 and a gas pipeline 240. The airbag mounting frame 220 is mounted on the filter press plate frame 100, the airbag 210 is mounted in the area framed by the airbag mounting frame 220, the vent nozzle 230 is arranged on the frame of the filter press plate frame 100, the vent nozzle 230 is connected to the gas pipeline 240, and the other end of the gas pipeline 240 is connected to the The gas control assembly is arranged outside, the air bag 210, the gas control assembly, the vent nozzle and the gas pipeline 240 are interconnected, and the four corners of the air bag installation frame 220 are respectively connected to the midpoint of the frame of the filter press plate frame 100. The purpose of this design is to reduce the area occupied by the filter press plate frame 100, so that the dialysate of the suspended slurry material after filtering by the filter layer 300 can be smoothly collected to the dialysate discharge channel 140 for discharge;

[0034] After the airbag layer 200 passes through the filter layer 300, the filtration is completed. When the filter press plates and frames 100 are separated from each other, large pieces of filter cake fall off from the filter cake mud containing area 120, and a small amount of filter mud still remains on the filter layer 300. By starting the external gas control component and inflating the airbag 210 through the gas pipeline 240, the airbag 210 expands toward the filter pressing surfaces on both sides of the filter press plate frame 100, thereby lifting the filter layer 300 and pushing down the filter mud remaining on the filter layer 300. After completing the above operations, the gas control component drives the airbag 210 to exhaust air, so that the airbag 210 returns to its initial state, and the filter layer 300 also returns to its initial unstressed state, and the filter press enters the next working cycle.

[0035] In summary, the utility model provides a filter press plate frame that is easy to remove mud. An air bag layer is arranged inside the plate frame. When two adjacent filter press plate frames are separated after the filtration is completed, the air bag layer is started and the filtration layer is supported from the inside to the outside by the air bag layer, so that the filter cake mud remaining on the filtration layer falls off, preventing the filter mud from accumulating on the filtration layer and affecting the filtration effect of the next filtration. The filtration (filtration) effect of the filter press is improved by cleaning the filter mud on the filter layer.

[0036] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of explanation and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various selections and changes to the embodiments without creative contribution as needed after reading this specification without departing from the principles and purpose of the present invention, but they are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A plate frame for filter press convenient for desludging, characterized in that: It comprises a filter press plate frame (100), wherein a flow passage (110) is provided at the center of the filter press plate frame (100); An air bag layer (200) is provided inside the filter press plate frame (100), filter layers (300) are symmetrically provided on both sides of the air bag layer (200), and the filter layers (300) are installed on the filter press plate frame (100); The filter surface of the filter layer (300) is in a flexible state, and when the airbag layer (200) is inflated, the airbag layer (200) expands to prop up the filter surface of the filter layer (300) from the inside to the outside.

2. A plate frame for filter press convenient for desludging according to claim 1, characterized in that: A filter cake mud accommodating area (120) is provided between two adjacent filter press plate frames (100).

3. A plate frame for filter press convenient for desludging according to claim 2, characterized in that: A dialysate containing area (130) is provided between the filter layers (300) on both sides.

4. A filter press plate frame for desludging according to claim 3, characterized in that: The filter press plate frame (100) is provided with a dialysate discharge channel (140), the dialysate discharge channel (140) is connected to the dialysate receiving area (130), the dialysate discharge channel (140) is not connected to the filter cake mud receiving area (120), and the dialysate discharge channels (140) on two adjacent filter press plate frames (100) are connected to each other.

5. A plate frame for filter press convenient for desludging according to claim 1, characterized in that: The airbag layer (200) comprises an airbag (210), an airbag mounting frame (220), a gas control component, a vent nozzle (230) and a gas pipeline (240); the airbag mounting frame (220) is mounted on the filter press plate frame (100); the airbag (210) is mounted in the area framed by the airbag mounting frame (220); the vent nozzle (230) is arranged on the frame of the filter press plate frame (100); the gas pipeline (240) is connected to the vent nozzle (230); the other end of the gas pipeline (240) is connected to the gas control component; the gas control component is arranged outside; the airbag (210), the gas control component, the vent nozzle and the gas pipeline (240) are interconnected.

6. A plate frame for filter press convenient for desludging according to claim 5, characterized in that: The four corners of the airbag installation frame (220) are respectively connected to the midpoints of the frame of the filter press plate frame (100).

7. A filter press plate frame for desludging according to claim 5, characterized in that: The flow passage (110) is arranged to pass through the center of the airbag (210).

8. A filter press plate frame for desludging according to claim 1, characterized in that: A pulley (150) is provided on the opposite side of the filter press plate frame (100), and the pulley (150) is slidably arranged on a slide rail on the filter press beam.

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