Plate-and-frame filter pressing device for river channel desilting

Abstract

The utility model provides a plate-and-frame filter pressing device for river channel desilting, which relates to the technical field of river channel desilting, and comprises a fixed plate and a pressure stopping plate, a filter pressing mechanism for solid-liquid separation of slurry is arranged between the fixed plate and the pressure stopping plate, two cross rods are fixedly connected between the fixed plate and the pressure stopping plate, and the cross rods are fixedly connected with the fixed plate. A plurality of filter plates are slidably connected between the fixing plate and the pressure stopping plate through two cross rods, a plate pulling mechanism used for equally dividing the filter plates is arranged on one side of the filter pressing mechanism, and a cake discharging and cleaning mechanism used for discharging mud cakes and cleaning the filter plates is arranged above the filter pressing mechanism. According to the plate-and-frame filter pressing device for river channel desilting, the plate pulling mechanism and the cake discharging and cleaning mechanism are arranged in a matched mode, the filter plates can be automatically pulled open, mud cakes can be pushed to fall off from the filter plates, manual operation is not needed, time and labor are saved, the labor intensity of workers can be reduced, and the desilting work efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to a plate-frame filter press device, in particular to a plate-frame filter press device for river channel dredging, and belongs to the technical field of river channel dredging. Background Art

[0002] At present, my country has a dense network of inland rivers, and the siltation of urban rivers is becoming more and more serious. This not only reduces the flood discharge and drainage capacity of rivers, but also causes the deterioration of water quality. Local governments invest a lot of manpower and funds in dredging projects every year, and the disposal of the large amount of silt generated has become a major problem. The silt in the river channel is of poor quality, low strength, high water content, difficult to use directly, and has a high content of organic matter and serious heavy metal pollution. Therefore, it is necessary to dredge the river regularly. The current dredging process mainly includes: environmental dredging system (first use a suction dredger to loosen the underwater mud surface and extract the silt), pretreatment system (pre-treat the dredged sludge through the screening and interception function of the screen machine, gravity sedimentation of the primary tank and the screening function of the fine screening system), conditioning and modification system (the mud stored in the primary tank is treated by the mixing tank and the homogenization tank so that the concentration and properties of the mud meet the treatment requirements of the subsequent processes), dehydration and consolidation system (the plate and frame filter press directly dehydrates and solidifies the pretreated and conditioned mud to achieve solid-liquid separation of mud and water, and finally obtains mud cake and tail water) and tail water treatment system (extend the tail water flow path, reduce the flow rate to promote the sedimentation of suspended particles, and adjust to the standard pH before discharge).

[0003] When the existing plate and frame filter press device for river dredging finishes filtering the sludge, the formed mud cake has different viscosities due to different water contents, which makes it impossible to fall off by its own gravity. It is necessary to manually pull open the filter plates one by one, shovel off the mud cake, and then manually remove the mud residue stuck on the filter plates. This method is not only time-consuming and labor-intensive, but also reduces the efficiency of dredging. Utility Model Content

[0004] The purpose of the present invention is to provide a plate and frame filter press for river dredging in order to solve the above-mentioned problems, so as to solve the problem in the prior art that manual shoveling of mud cakes and clearing of mud residues is not only time-consuming and labor-intensive, but also reduces the efficiency of dredging.

[0005] Technical Solution The utility model is realized through the following technical solution: a plate and frame filter press device for river dredging.

[0006] It comprises a fixed plate and a pressure stop plate, a filter press mechanism for separating the solid and liquid of the mud is arranged between the fixed plate and the pressure stop plate, two cross bars are fixedly connected between the fixed plate and the pressure stop plate, a plurality of filter plates are slidably connected between the fixed plate and the pressure stop plate through the two cross bars, a pulling plate mechanism for equally dividing the filter plates is arranged on one side of the filter press mechanism, a cake unloading and cleaning mechanism for unloading the mud cake and cleaning the filter plates is arranged above the filter press mechanism, and a mud cake box for collecting the mud cake is placed below the filter press mechanism;

[0007] The filter press mechanism comprises a cylinder, a pressing plate is fixedly connected to the telescopic end of the cylinder, the filter plate comprises a head plate and a tail plate, two sliders are fixedly connected to the outer surface of each filter plate, and the filter plate is slidably connected to the cross bar through the slider;

[0008] The plate pulling mechanism comprises an electric push rod 1, the telescopic end of the electric push rod 1 is fixedly connected to a slider on the tail plate, and the outer surface of the slider is hinged with a scissor hinge rod through a fixed column;

[0009] The cake unloading cleaning mechanism includes an electric push rod 2, the telescopic end of the electric push rod 2 is fixedly connected with a push plate, the bottom surface of the push plate is fixedly connected with a plurality of push blocks arranged at equal distances, each of the push blocks is provided with two grooves, each of the grooves is slidably connected with a slide plate, and each of the slide plates is clamped with a plurality of brushes. The clamping setting of the brush is convenient for replacing the brush after long-term use; when the slider on the tail plate moves to the fixed plate, the distance between each filter plate is the maximum equal-division distance, and the width of the push block is adapted to the maximum equal-division distance of the filter plate; through the coordinated setting of the plate pulling mechanism and the cake unloading cleaning mechanism, not only can the filter plate be automatically pulled apart, but also the mud cake can be pushed to fall off the filter plate, without manual operation, saving time and effort, not only reducing the labor intensity of workers, but also improving the efficiency of dredging work.

[0010] The pressure stop plate is fixedly connected to the mud inlet pipe and four filtrate discharge pipes, each filter plate is provided with four drainage holes adapted to the filtrate discharge pipes, the outer surface of each filter plate is fixedly connected to a filter cloth, and each filter plate and filter cloth is provided with a feed hole adapted to the mud inlet pipes. During the filtration process, each drainage hole can form a complete channel, and the squeezed liquid is discharged from the filtrate discharge pipe through this channel.

[0011] Preferably, a side of the head plate close to the pressure stop plate is fixedly connected to the pressure stop plate, and an outer surface of the cylinder is fixedly connected to an outer surface of the fixing plate.

[0012] The outer surface of the electric push rod 1 is fixedly connected to the outer surface of the fixing plate.

[0013] Preferably, a spring is fixedly connected between each of the grooves and the slide plate. The arrangement of the spring can ensure that there is always an antagonistic force between the brush and the filter plate when cleaning the mud, so that the mud on the filter plate can be cleaned more thoroughly.

[0014] Preferably, the upper surfaces of the fixed plate and the pressure stop plate are fixedly connected with a support frame, the interior of the support frame is provided with two symmetrical slide grooves, the outer surface of the push plate is slidably connected to the slide grooves via a protrusion, and the outer surface of the second electric push rod is fixedly connected to the outer surface of the support frame. The setting of the slide groove can limit the push plate to prevent the push plate from shaking during the sliding process.

[0015] The utility model provides a plate-frame filter press device for river channel dredging, which has the following beneficial effects:

[0016] The plate and frame filter press device for river dredging can not only automatically pull the filter plate apart, but also push the mud cake to make it fall off the filter plate through the coordinated arrangement of the plate pulling mechanism and the cake unloading and cleaning mechanism. No manual operation is required, which saves time and effort. It can not only reduce the labor intensity of workers, but also improve the efficiency of dredging work.

[0017] The plate and frame filter press device for river dredging can clean the mud residue adhering to the filter plate through the cake unloading cleaning mechanism, that is, the coordinated setting of the slide plate, the spring and the brush, so as to ensure the sealing performance of the filter plate, save the trouble of manual cleaning and further improve the efficiency of dredging work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the front view of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the rear view of the utility model;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the filter pressing mechanism and the plate pulling mechanism of the utility model;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the cake unloading and cleaning mechanism of the utility model;

[0022] Figure 5 It is an exploded view of the push block of the utility model;

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the filter plate of the utility model.

[0024] Description of Reference Numerals

[0025] 1. Fixed plate;

[0026] 2. Filter pressing mechanism; 201. Cylinder; 202. Pressing plate; 203. Sliding block;

[0027] 204, filter plate; 2041, head plate; 2042, tail plate; 2043, filter cloth; 2044, drainage hole; 2045, feed hole;

[0028] 205, mud inlet pipe; 206, filtrate outlet pipe;

[0029] 3. Plate pulling mechanism; 301. Electric push rod 1; 302. Scissor hinge rod;

[0030] 4. Cake unloading and cleaning mechanism; 401. Electric push rod 2; 402. Push plate; 403. Push block; 404. Groove; 405. Slide plate; 406. Spring; 407. Brush; 408. Support frame; 409. Slide slot;

[0031] 5. Mud cake box; 6. Cross bar; 7. Pressure stop plate. DETAILED DESCRIPTION

[0032] The embodiment of the utility model provides a plate-frame filter press device for river channel dredging.

[0033] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , including a fixed plate 1 and a pressure stop plate 7, a filter press mechanism 2 for separating the solid and liquid of the mud is arranged between the fixed plate 1 and the pressure stop plate 7, two cross bars 6 are fixedly connected between the fixed plate 1 and the pressure stop plate 7, a plurality of filter plates 204 are slidably connected between the fixed plate 1 and the pressure stop plate 7 through the two cross bars 6, a pulling plate mechanism 3 for equally dividing the filter plates 204 is arranged on one side of the filter press mechanism 2, a cake unloading and cleaning mechanism 4 for unloading mud cakes and cleaning the filter plates 204 is arranged above the filter press mechanism 2, and a mud cake box 5 for collecting mud cakes is placed below the filter press mechanism 2;

[0034] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 6 The filter press mechanism 2 includes a cylinder 201, a pressing plate 202 is fixedly connected to the telescopic end of the cylinder 201, and the filter plate 204 includes a head plate 2041 and a tail plate 2042. The outer surface of each filter plate 204 is fixedly connected to two sliders 203, and the filter plate 204 is slidably connected to the cross bar 6 through the sliders 203;

[0035] The inside of the pressure stop plate 7 is fixedly connected with a mud inlet pipe 205 and four filtrate discharge pipes 206, and each filter plate 204 is provided with four drainage holes 2044 adapted to the filtrate discharge pipe 206, and the outer surface of each filter plate 204 is fixedly connected with a filter cloth 2043, and each filter plate 204 and the filter cloth 2043 are provided with a feed hole 2045 adapted to the mud inlet pipe 205. During the filter pressing process, each drainage hole 2044 can form a complete channel; starting the cylinder 201 in the filter pressing mechanism 2 can make the pressure plate 202 press the filter plate 204 between the pressure plate 202 and the pressure stop plate 7, and at this time, a closed filtering space is formed between every two filter plates 204, and under the pressure of the pressure plate 202, the squeezed liquid is discharged from the filtrate discharge pipe 206 through the drainage holes 2044, and the mud slowly forms a mud cake between the two filter plates 204, realizing solid-liquid separation.

[0036] The side of the head plate 2041 close to the pressure stop plate 7 is fixedly connected to the pressure stop plate 7 , and the outer surface of the cylinder 201 is fixedly connected to the outer surface of the fixing plate 1 .

[0037] Please refer to Figure 1 and Figure 3 The plate pulling mechanism 3 includes an electric push rod 301, the telescopic end of the electric push rod 301 is fixedly connected to the slider 203 on the tail plate 2042, and the outer surface of the slider 203 is hinged with a scissor hinge rod 302 through a fixed column; starting the electric push rod 301 in the plate pulling mechanism 3 can make the slider 203 on the tail plate 2042 slide along the cross bar 6 toward the fixed plate 1, so that each filter plate 204 can be equally pulled apart, without the need for workers to manually pull them apart one by one, saving time and effort.

[0038] The outer surface of the electric push rod 1 301 is fixedly connected to the outer surface of the fixing plate 1 .

[0039] Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5The cake unloading and cleaning mechanism 4 includes an electric push rod 401, the telescopic end of the electric push rod 401 is fixedly connected to a push plate 402, and the bottom surface of the push plate 402 is fixedly connected to a plurality of push blocks 403 arranged at equal distances, each push block 403 has two grooves 404 inside, each groove 404 is slidably connected to a slide plate 405, and each slide plate 405 has a plurality of brushes 407 clamped inside. When the slider 203 on the tail plate 2042 moves to the fixed plate 1, the distance between each filter plate 204 is the maximum equal-division distance, and the width of the push block 403 is adapted to the maximum equal-division distance of the filter plate 204; starting the electric push rod 2 401 in the cake unloading and cleaning mechanism 4 can make the push plate 402 drive the push block 403 to slide downward, so that the mud cake can be pushed into the mud cake box 5, without manual operation, saving time and effort, not only reducing the labor intensity of workers, but also improving the efficiency of dredging work. In the process of pushing the mud cake, the brush 407 on the push block 403 can clean the mud residue stuck on the filter plate 204, ensuring the sealing performance of the filter plate 204, eliminating the trouble of manual cleaning, and further improving the efficiency of dredging work.

[0040] A spring 406 is fixedly connected between each groove 404 and the slide plate 405 .

[0041] The upper surfaces of the fixed plate 1 and the pressure stop plate 7 are fixedly connected with a support frame 408, and two symmetrical slide grooves 409 are opened inside the support frame 408. The outer surface of the push plate 402 is slidably connected to the slide groove 409 through a protrusion, and the outer surface of the electric push rod 401 is fixedly connected to the outer surface of the support frame 408.

[0042] When the utility model is in use, the mud conditioned by the curing agent and the flocculant is transported from the mud inlet pipe 205 to the filter plate 204. When the mud fills the filter plate 204, the cylinder 201 in the filter press mechanism 2 is started, so that the pressure plate 202 can press the filter plate 204 between the pressure plate 202 and the pressure stop plate 7. At this time, a closed filtering space is formed between every two filter plates 204. Under the pressure of the pressure plate 202, the squeezed liquid is discharged from the filtrate discharge pipe 206 through the drainage hole 2044. The mud slowly forms a mud cake between the two filter plates 204 to achieve solid-liquid separation. At the end of the filter press, the electric push rod 301 in the plate pulling mechanism 3 is started, so that the tail plate 204 The slider 203 on 2 slides along the cross bar 6 toward the fixed plate 1, so that each filter plate 204 can be equally pulled apart, and then the electric push rod 2 401 in the cake unloading and cleaning mechanism 4 is started, which can make the push plate 402 drive the push block 403 to slide downward, so that the mud cake can be pushed into the mud cake box 5, without manual operation, saving time and effort, not only can reduce the labor intensity of workers, but also can improve the efficiency of dredging work. In the process of pushing the mud cake, the brush 407 on the push block 403 can clean the mud residue stuck on the filter plate 204, ensure the sealing performance of the filter plate 204, save the trouble of manual cleaning, and further improve the efficiency of dredging work.

[0043] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A plate-frame filter press device for river channel dredging, comprising a fixed plate (1) and a pressure stop plate (7), characterized in that: A filter press mechanism (2) for separating the solid and liquid of the mud is arranged between the fixed plate (1) and the pressure stop plate (7); two cross bars (6) are fixedly connected between the fixed plate (1) and the pressure stop plate (7); a plurality of filter plates (204) are slidably connected between the fixed plate (1) and the pressure stop plate (7) via the two cross bars (6); a pulling plate mechanism (3) for equally dividing the filter plates (204) is arranged on one side of the filter press mechanism (2); a cake unloading and cleaning mechanism (4) for unloading the mud cake and cleaning the filter plates (204) is arranged above the filter press mechanism (2); and a mud cake box (5) for collecting the mud cake is placed below the filter press mechanism (2); The filter pressing mechanism (2) comprises a cylinder (201), the telescopic end of the cylinder (201) is fixedly connected to a pressing plate (202), the filter plates (204) comprise a head plate (2041) and a tail plate (2042), the outer surface of each filter plate (204) is fixedly connected to two sliders (203), and the filter plates (204) are slidably connected to a crossbar (6) via the sliders (203); The plate pulling mechanism (3) comprises an electric push rod (301), the telescopic end of the electric push rod (301) being fixedly connected to a slider (203) on the tail plate (2042), and the outer surface of the slider (203) being hinged with a scissor hinge rod (302) via a fixed column; The cake unloading and cleaning mechanism (4) comprises an electric push rod 2 (401), the telescopic end of the electric push rod 2 (401) is fixedly connected to a push plate (402), the bottom surface of the push plate (402) is fixedly connected to a plurality of push blocks (403) arranged at equal distances, each of the push blocks (403) has two grooves (404) formed therein, each of the grooves (404) is slidably connected to a slide plate (405), and each of the slide plates (405) has a plurality of brushes (407) clamped therein.

2. The plate-frame filter press device for river channel dredging according to claim 1, characterized in that: The interior of the pressure stop plate (7) is fixedly connected to a mud inlet pipe (205) and four filtrate discharge pipes (206); the interior of each filter plate (204) is provided with four drainage holes (2044) that are compatible with the filtrate discharge pipes (206); the outer surface of each filter plate (204) is fixedly connected to a filter cloth (2043); and the interior of each filter plate (204) and filter cloth (2043) is provided with a feed hole (2045) that is compatible with the mud inlet pipe (205).

3. The plate-frame filter press device for river channel dredging according to claim 1, characterized in that: The side of the head plate (2041) close to the pressure stop plate (7) is fixedly connected to the pressure stop plate (7), and the outer surface of the cylinder (201) is fixedly connected to the outer surface of the fixing plate (1).

4. The plate-frame filter press device for river channel dredging according to claim 1, characterized in that: The outer surface of the electric push rod 1 (301) is fixedly connected to the outer surface of the fixing plate (1).

5. The plate-frame filter press device for river channel dredging according to claim 1, characterized in that: A spring (406) is fixedly connected between each of the grooves (404) and the slide plate (405).

6. The plate-frame filter press device for river channel dredging according to claim 1, characterized in that: The upper surfaces of the fixed plate (1) and the pressure stop plate (7) are fixedly connected to a support frame (408), two symmetrical slide grooves (409) are provided inside the support frame (408), the outer surface of the push plate (402) is slidably connected to the slide groove (409) via a protrusion, and the outer surface of the second electric push rod (401) is fixedly connected to the outer surface of the support frame (408).

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