Frame type mud cake press device with stable mud cake water content

Abstract

The utility model relates to plate and frame filter press technical field, concretely is the plate and frame mud press device of mud cake moisture content stability, including fixed unit, including fixed frame, with the fixed frame through connection's sludge input pipe, fixedly connected in fixed frame one side's sliding frame to the inside through connection of the sliding frame's stirring subassembly, the booster unit, including fixed in fixed frame one side and located the water pipe of sliding frame bottom, and with the water pipe through connection is in the side -by -side way distribution's multiple groups of input pipe, the squeezing unit, the utility model discloses through the mutual cooperation of first mud pressing assembly first mud pressing assembly and second mud pressing assembly, can carry out extrusion to different height's sludge to improve the stability of mud cake moisture content, and the water permeable hole in filter cloth is staggered arrangement, guides the water that seeps out in the process of squeezing and exports fast, avoids the secondary water absorption of mud cake secondary water absorption caused by moisture accumulation, guarantees mud cake moisture content stability at low level.

Description

Technical Field

[0001] This utility model relates to the field of plate and frame filter press technology, specifically to a plate and frame filter press device for stabilizing the moisture content of filter cake. Background Technology

[0002] In the environmental protection field, wastewater treatment plants, industrial wastewater treatment workshops, and tailings treatment after mining all require the dewatering of large quantities of sludge to achieve the goals of volume reduction, harmlessness, and resource recovery. Plate and frame sludge presses, as a classic and widely used solid-liquid separation device, occupy an important position among many dewatering technologies due to their relatively simple structure, high filtration pressure, and adaptability to various sludge properties. However, in actual operation, conventional plate and frame sludge presses currently suffer from significant issues with the stability of the sludge cake moisture content, posing numerous challenges to subsequent sludge disposal.

[0003] Traditional pressing methods are driven by an integral hydraulic system, which cannot press localized areas, resulting in unstable moisture content in the filter cake. At the same time, spray cleaning cannot cover the entire area of ​​the filter cloth, resulting in limited cleaning effect and requiring secondary manual intervention, which increases work efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a plate and frame sludge pressing device with stable sludge cake moisture content, including a fixing unit, comprising a fixing frame, a sludge input pipe connected through the fixing frame, a sliding frame fixedly connected to one side of the fixing frame, and a toggle component connected through the sliding frame; a pressurizing unit, comprising a water pipe fixed to one side of the fixing frame and located at the bottom of the sliding frame, and multiple sets of input pipes connected through the water pipe and arranged in a parallel manner; and a pressing unit, comprising multiple sets of first sludge pressing components engaged in the fixing frame, second sludge pressing components distributed in the intervals between the multiple sets of first sludge pressing components, and a cleaning component connected through the first sludge pressing components and the second sludge pressing components respectively.

[0005] Preferably, the second pressing assembly includes a second plate frame that engages with the fixed frame, a second mounting block that is fixedly connected to both sides of the second plate frame, a pressurizing assembly disposed within the second plate frame, and a support plate located within the pressurizing assembly and fixedly connected to the top and bottom of the inner wall of the second plate frame.

[0006] Preferably, the pressurization assembly includes filter cloths located on both sides of the support plate, three sets of second trapezoidal plates disposed on one side of the filter cloths and arranged in a parallel manner, and a filter layer located inside the second trapezoidal plates.

[0007] Preferably, the first pressing mud assembly includes a first plate frame that engages with the inner wall of the fixed frame, a first mounting block that is fixedly connected to both sides of the first plate frame, and a pressing mud plate disposed therein.

[0008] Preferably, the inner wall of the mud-pressing plate is provided with three sets of first trapezoidal plates arranged in parallel on both sides.

[0009] Preferably, the cleaning assembly includes two sets of through pipes that are respectively connected to the first sludge pressing assembly and the second sludge pressing assembly and are distributed in a parallel manner, and a connecting pipe that is connected to the top of the two sets of through pipes.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. In this utility model, the first and second pressing components work together to compress sludge of different heights, thereby improving the stability of the moisture content of the sludge cake. The filter layer contains two layers, from the outside to the inside: a polyetheretherketone (PEEK) wear-resistant layer and a silicone rubber elastic buffer layer. The silicone rubber elastic buffer layer has high elasticity and can adapt to the compression state of the filter cloth and sludge during the pressing process, ensuring that the pressure is evenly transmitted to all parts of the filter cake. The PEEK wear-resistant layer can effectively resist friction with the filter cloth and reduce wear. The filter cloth has φ4mm permeable holes evenly distributed inside, and the permeable holes inside the filter cloth are arranged in an alternating pattern to guide the water seeping out during the pressing process to drain quickly, avoiding water accumulation that would cause the sludge cake to absorb water again, and ensuring that the moisture content of the sludge cake remains stable at a low level.

[0012] 2. In this utility model, by setting up a cleaning component, the through pipe can flush the mud pressing plate and the pressurizing component through the spray nozzles on the top of the inner wall of the first plate frame and the second plate frame, effectively removing blockages and preventing the filter cloth from becoming unstable in terms of water permeability, thereby stabilizing the moisture content of the mud cake. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the pressing unit structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the second sludge pressing component of this utility model;

[0016] Figure 4 for Figure 3 Enlarged diagram of part A in the middle.

[0017] In the diagram: 100, Fixed unit; 200, Pressurizing unit; 300, Pressing unit; 101, Fixed frame; 102, Sludge input pipe; 103, Sliding frame; 104, Actuating assembly; 301, First sludge pressing assembly; 201, Water pipe; 202, Input pipe; 301, First sludge pressing assembly; 302, Second sludge pressing assembly; 303, Cleaning assembly; 301-1, First plate frame; 301-2, First mounting block; 301-3, Sludge pressing plate; 301-3a, First trapezoidal plate; 302-1, Second plate frame; 302-2, Second mounting block; 302-3, Pressurizing assembly; 302-4, Support plate; 303-1, Through pipe; 303-2, Connecting pipe; 302-3a, Filter cloth; 302-3b, Second trapezoidal plate; 302-3c, Filter layer. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figure 1 - Figure 4 The present invention relates to a plate and frame sludge pressing device for stabilizing the moisture content of sludge cakes, comprising a fixing unit 100, including a fixing frame 101, a sludge input pipe 102 connected through the fixing frame 101, a sliding frame 103 fixedly connected to one side of the fixing frame 101, and a toggle component 104 connected through the sliding frame 103; a pressurizing unit 200, including a water pipe 201 fixed to one side of the fixing frame 101 and located at the bottom of the sliding frame 103, and multiple sets of input pipes 202 connected through the water pipe 201 and arranged in a parallel manner; and a pressing unit 300, including multiple sets of first sludge pressing components 301 engaged within the fixing frame 101, second sludge pressing components 302 distributed in the intervals between the multiple sets of first sludge pressing components 301, and a cleaning component 303 connected through the first sludge pressing components 301 and the second sludge pressing components 302 respectively.

[0020] It should be noted that the first sludge pressing assembly 301 and the second sludge pressing assembly 302 are respectively provided with through holes, and the position and size of the through holes are adapted to the sludge input pipe 102 so that the sludge can be input into the first sludge pressing assembly 301 and the second sludge pressing assembly 302 through the sludge input pipe 102. The sliding frame 103 and the actuating assembly 104 are existing technologies, and their working principles will not be described in detail here.

[0021] Specifically, the second sludge pressing assembly 302 includes a second plate frame 302-1 that is engaged with the fixed frame 101, a second mounting block 302-2 that is fixedly connected to both sides of the second plate frame 302-1, a pressurizing assembly 302-3 disposed within the second plate frame 302-1, and a support plate 302-4 located within the pressurizing assembly 302-3 and fixedly connected to the top and bottom of the inner wall of the second plate frame 302-1.

[0022] It should be noted that the bottom of the second plate frame 302-1 is provided with a through hole, through which the squeezed water is discharged. The top of the inner wall of the first plate frame 301-1 is provided with multiple sets of spray nozzles, which are connected to the cleaning component 303.

[0023] Specifically, the pressurization assembly 302-3 includes filter cloths 302-3a located on both sides of the support plate 302-4, three sets of second trapezoidal plates 302-3b disposed on one side of the filter cloths 302-3a and arranged in a parallel manner, and a filter layer 302-3c located inside the second trapezoidal plates 302-3b.

[0024] It should be noted that the three sets of second trapezoidal plates 302-3b can compress sludge of different heights, thereby improving the stability of the moisture content of the filter cake. The filter layer 302-3c contains two layers, from the outside to the inside: a polyetheretherketone wear-resistant layer and a silicone rubber elastic buffer layer. The silicone rubber elastic buffer layer has high elasticity and can adapt to the compression state of the filter cloth 302-3a and the sludge during the pressing process, ensuring that the pressure is evenly transmitted to all parts of the filter cake. The polyetheretherketone wear-resistant layer can effectively resist friction with the filter cloth and reduce wear. The filter cloth 302-3a has evenly distributed φ4mm water permeable holes, which are arranged in an alternating pattern to guide the water seeping out during the pressing process to drain quickly, avoiding water accumulation that would cause the filter cake to absorb water again, and ensuring that the moisture content of the filter cake remains stable at a low level.

[0025] Specifically, the first pressing mud assembly 301 includes a first plate frame 301-1 that is engaged with the inner wall of the fixed frame 101, a first mounting block 301-2 that is fixedly connected to both sides of the first plate frame 301-1, and a pressing mud plate 301-3 disposed within the first plate frame 301-1.

[0026] It should be noted that the top of the inner wall of the first plate frame 301-1 is provided with multiple sets of spray nozzles, which are connected to the cleaning component 303. The mud press plate 301-3 provides sufficient structural strength for the carbon fiber reinforced composite material to prevent the first plate frame 301-1 from being excessively deformed.

[0027] Specifically, the inner walls of the mud-pressing plate 301-3 are provided with three sets of first trapezoidal plates 301-3a arranged in parallel on both sides.

[0028] It should be noted that the position of the first trapezoidal plate 301-3a is the same as that of the second trapezoidal plate 302-3b. During pressing, the cooperation between the first trapezoidal plate 301-3a and the second trapezoidal plate 302-3b can improve the pressing efficiency of sludge.

[0029] Specifically, the cleaning component 303 includes two sets of through pipes 303-1 that are respectively connected to the first mud pressing component 301 and the second mud pressing component 302 and are distributed in parallel, and a connecting pipe 303-2 that is connected to the top of the two sets of through pipes 303-1.

[0030] The working principle of this utility model is as follows: During use, sludge is input through the sludge input pipe 102 into multiple sets of first sludge pressing components 301 and second sludge pressing components 302. Due to the connection between the first sludge pressing components 301 and second sludge pressing components 302, the sludge can be pressed. The water produced by pressing is discharged through the through hole at the bottom of the inner wall of the second sludge pressing component 302. Then, the water pipe 201 is connected to the water supply pipe, and water is input through the input pipe 202 into the pressurization component 302-3. Due to the water pressure... The filter layer 302-3c on both sides of the support plate 302-4 is compressed, which in turn drives the second trapezoidal plate 302-3b to compress the sludge. The second trapezoidal plate 302-3b has the same height as the first trapezoidal plate 301-3a, enabling it to compress sludge of different heights, thereby improving the stability of the sludge cake's water content. The filter layer 302-3c contains two layers: a polyetheretherketone (PEEK) wear-resistant layer and a silicone rubber elastic buffer layer, from the outside to the inside. The silicone rubber elastic buffer layer has high elasticity and can... During the pressing process, the filter cloth 302-3a adapts to the compression state of the sludge, ensuring that the pressure is evenly transmitted to all parts of the filter cake. The polyetheretherketone (PEEK) wear-resistant layer effectively resists friction with the filter cloth, reducing wear. φ4mm permeable pores are evenly distributed within the filter cloth 302-3a, arranged in a staggered pattern to guide the rapid drainage of water seeping out during pressing, preventing water accumulation and secondary water absorption by the sludge cake, thus ensuring the sludge cake moisture content remains stable at a low level. After pressing, the actuating component 104 is activated on the sliding frame 1. Sliding on 03, the first mud pressing assembly 301 and the second mud pressing assembly 302 are moved to the other side in sequence. The mud cake can fall off during the movement. When the device is in use, the connecting pipe 303-2 can be connected to the water pipe. The through pipe 303-1 can flush the mud pressing plate 301-3 and the pressurizing assembly 302-3 through the spray nozzles on the top of the inner wall of the first plate frame 301-1 and the second plate frame 302-1, effectively removing blockages and preventing the filter cloth 302-3a from becoming unstable in terms of water permeability, thereby stabilizing the moisture content of the mud cake.

[0031] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A plate and frame mud pressing device with stable mud cake moisture content, characterized in that: include The fixing unit (100) includes a fixing frame (101), a sludge input pipe (102) that is connected through the fixing frame (101), a sliding frame (103) that is fixedly connected to one side of the fixing frame (101), and a toggle assembly (104) that is connected through the sliding frame (103). The booster unit (200) includes a water pipe (201) fixed to one side of the fixed frame (101) and located at the bottom of the sliding frame (103), and multiple sets of input pipes (202) connected through the water pipe (201) and arranged in a parallel manner; The pressing unit (300) includes multiple sets of first pressing assemblies (301) engaged in the fixed frame (101), second pressing assemblies (302) distributed in the intervals between the multiple sets of first pressing assemblies (301), and a cleaning assembly (303) that is connected in communication with the first pressing assemblies (301) and the second pressing assemblies (302).

2. The plate and frame pressing device for stabilizing the moisture content of mud cake according to claim 1, characterized in that: The second sludge pressing assembly (302) includes a second plate frame (302-1) that is engaged with the fixed frame (101), a second mounting block (302-2) that is fixedly connected to both sides of the second plate frame (302-1), a pressurizing assembly (302-3) disposed in the second plate frame (302-1), and a support plate (302-4) located in the pressurizing assembly (302-3) and fixedly connected to the top and bottom of the inner wall of the second plate frame (302-1).

3. The plate and frame pressing device for stabilizing the moisture content of mud cake according to claim 2, characterized in that: The pressurization assembly (302-3) includes filter cloths (302-3a) located on both sides of the support plate (302-4), three sets of second trapezoidal plates (302-3b) disposed on one side of the filter cloths (302-3a) and arranged in a parallel manner, and a filter layer (302-3c) located inside the second trapezoidal plates (302-3b).

4. The plate and frame sludge pressing device for stabilizing the moisture content of sludge cake according to claim 1, characterized in that: The first pressing mud assembly (301) includes a first plate frame (301-1) that is engaged with the inner wall of the fixed frame (101), a first mounting block (301-2) that is fixedly connected to both sides of the first plate frame (301-1), and a pressing mud plate (301-3) disposed in the first plate frame (301-1).

5. The plate and frame sludge pressing device for stabilizing the moisture content of sludge cake according to claim 4, characterized in that: The inner wall of the mud-pressing plate (301-3) is provided with three sets of first trapezoidal plates (301-3a) arranged in parallel on both sides.

6. The plate and frame pressing device for stabilizing the moisture content of mud cake according to claim 1, characterized in that: The cleaning assembly (303) includes two sets of through pipes (303-1) that are connected to the first sludge pressing assembly (301) and the second sludge pressing assembly (302) respectively and are distributed in a parallel manner, and a connecting pipe (303-2) that is connected to the top of the two sets of through pipes (303-1).

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