Dehydration filter pressing device for sludge treatment

Abstract

The utility model provides a dehydration filter pressing device for sludge treatment, and relates to the field of sludge treatment. The dewatering and filter pressing device for sludge treatment comprises a box body and supporting legs installed at the position of the box body, a stirring area and a filter pressing area are arranged in the box body, a stirring mechanism used for stirring and crushing sludge and a round barrel used for rotating are installed in the stirring area, and an opening used for receiving and discharging materials is formed in the round barrel; according to the dewatering and filter-pressing device for sludge treatment, a small amount of sludge can be subjected to filter-pressing during a sludge and flocculant test, the stirring blades can cut and crush the sludge, and the pressing plate not only can do circular motion, but also can keep reciprocating motion, so that the sludge is subjected to filter-pressing work comprehensively, the filter-pressing efficiency is improved, the sludge is ensured to be subjected to sufficient dewatering treatment, and the service life of the sludge is prolonged. When the scraping plate is in contact with the filter plate, the scraping plate rubs with the filter plate in the circular motion process, so that sludge adhered to the filter plate is scraped, and the filtering burden of the filter plate is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of sludge treatment, specifically is a dewatering filter press device for sludge treatment. BACKGROUND

[0002] Sludge treatment is a processing process of concentration, conditioning, dewatering, stabilization, drying or incineration and so on of sludge, and the sludge is mainly derived from the sewage treatment process, including domestic sewage, industrial wastewater treatment and so on, in the sewage treatment, when removing the pollutants in water through physical, chemical and biological methods, a large amount of solid suspended substances will be produced, these substances gather to form sludge, when treating the sludge, generally, the dewatering filter press device is used to apply pressure to make the water in the sludge pass through the filter medium (such as filter cloth), and the solid particles are intercepted on the filter cloth, so as to achieve the purpose of separating solid and liquid.

[0003] In the research and development or optimization stage of sludge treatment process, when a small amount of sludge needs to be filter pressed, for example, when trying a new flocculant to improve the dewatering performance of sludge, by conducting filter pressing test on a small amount of sludge, the effects of different flocculants can be directly observed, and the filter pressing speed of sludge and the moisture content of filter cake under the action of different types and different dosages of flocculants can be compared, so as to select the most suitable flocculant and the best dosage, and provide a basis for large-scale sludge treatment process optimization.

[0004] In the filter pressing process, the sludge is prone to accumulate and form large sludge, which seriously hinders the full mixing of sludge and flocculant, so that the flocculant cannot uniformly act on the sludge particles, greatly reduces the mixing effect, and thus reduces the accuracy of the test, and the large sludge will cause filter cloth blockage problem in the subsequent filter pressing process, once the filter cloth is blocked, the efficiency of sludge filter pressing will be reduced, and the filter pressing effect is difficult to reach the expected standard, which increases the time cost and energy consumption of filter pressing operation. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a dewatering filter press device for sludge treatment, which can comprehensively filter press the sludge, avoid filter pressing dead angle, improve the filter pressing efficiency, and scrape off the sludge adhered to the filter plate, reduce the filter burden of the filter plate, and further improve the filter efficiency.

[0006] In order to achieve the above object, the utility model discloses a dewatering filter press device for sludge treatment, including box and the supporting leg of installing at the box, be equipped with stirring zone and filter pressing area in the box, install the stirring mechanism for the sludge stirring crushing in stirring zone and be used for the circular barrel of rotation, be equipped with the opening for receiving material and discharging in the circular barrel, the filter plate for the water penetration and the circular of fixed mounting in filter pressing area, the filter plate's receiving port is linked together with stirring zone, install the rotating lever for rotation in the box, the fixed plate of fixed mounting on the outside of rotating lever, the inside of fixed plate is equipped with a plurality of arc grooves, and the inside of each arc groove is slidably connected with fixed shaft, and one end of each fixed shaft is fixedly connected with the push board, and the disc for driving the push board rotation is rotatably installed on the outside of rotating lever, and the push board is slidably connected with the sliding slot in the disc, and the outer end of each push board is fixedly connected with the pressing plate for extruding the sludge, and the arc pad for sealing is fixedly connected between every two adjacent pressing plates, and a plurality of pressing plates and a plurality of arc pads form annular structure and are in close contact with the filter plate.

[0007] Preferably, the box includes a shell, a rotating plate for rotation, a connecting rod, and a box door, the rotating lever is rotatably connected with the rotating plate and the shell, the connecting rod is fixedly connected with the rotating plate, and the box door is in close contact with the rotating plate and the shell.

[0008] Preferably, the shell further includes a feed inlet for feeding and a drain outlet for draining, and the feed inlet and the drain outlet are respectively communicated with the stirring zone and the filter pressing area.

[0009] Preferably, the pressing plate is arc-shaped and in close contact with the filter plate.

[0010] Preferably, the stirring mechanism includes a rotating shaft for rotation and a plurality of stirring paddles, the stirring paddles are fixedly connected with the rotating shaft, the stirring paddles are located in the circular barrel, and the rotating shaft is fixedly connected with the shell.

[0011] Preferably, two sealing strips are fixedly embedded in the circular barrel, and the two sealing strips are in close contact with the inner wall of the stirring zone.

[0012] Preferably, a scraper is fixedly embedded on the outer side of each pressing plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The sludge treatment dewatering filter press device, the stirring paddle can cut and crush the larger block in the sludge, decompose it into smaller particles, reduce the probability of blocking the filter cloth at the filter plate in the subsequent filter pressing process of the large block impurities and sludge, and can also mix and stir the flocculating agent and the sludge, and the stirring can ensure that the conditioning agent is uniformly dispersed in the sludge, the outer motor drives the pressing plate to make circular motion around the rotating rod in the filter cloth at the filter plate, and the push plate and the pressing plate move back and forth at the same time, which can fully press filter the sludge, avoid filter pressing dead angle, improve the filter pressing efficiency, and ensure that the sludge is fully dewatered, and when the scraper contacts the filter cloth at the filter plate, friction occurs between the filter cloth at the filter plate during the circular motion, and the sludge adhered to the filter cloth is scraped off, reducing the filtering burden and further improving the filtering efficiency.

[0015] 2. The sludge treatment dewatering filter press device, the sludge in the stirring area can be conveniently discharged to the filter plate receiving port by rotating the circular barrel, which is convenient to operate and conducive to realizing the transfer of sludge between different treatment areas, making the whole treatment process coherent and efficient, and the pressing plate is driven to move back and forth by using a forward and reverse motor, so that the sludge enters the annular gap and is reasonably distributed when the pressing plate is away from the filter plate, and is extruded and pressed when the pressing plate is close to the filter plate, and the deformation of the arc plate can assist the distribution and retention of the sludge, effectively improving the filter pressing effect and making the water in the sludge discharge through the filter hole of the filter plate. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a sectional view of the front view of the box of the utility model;

[0018] Figure 3 It is a schematic diagram of the utility model Figure 2 It is an enlarged schematic diagram of the structure at A in the utility model;

[0019] Figure 4 It is a sectional view of the side view of the shell of the utility model;

[0020] Figure 5 It is a sectional view of the side view of the shell, the circular barrel, the box door and the rotating rod of the utility model;

[0021] Figure 6 It is a schematic diagram of the pressing plate and the scraper structure of the utility model;

[0022] Figure 7 It is a schematic diagram of the structure of the disc, the rotating plate and the connecting rod of the utility model;

[0023] Figure 8 It is a schematic diagram of the structure of the pressing plate, the arc-shaped pad and the disc of the utility model;

[0024] Figure 9 It is filter plate structure schematic view of the utility model;

[0025] Figure 10 It is circular barrel structure schematic view of the utility model;

[0026] Figure 11 It is structure schematic view when the utility model pressboard moves.

[0027] Wherein: 1, box body;101, shell;102, rotating plate;103, connecting rod;104, box door;2, scraper;3, stirring area;4, filter pressing area;5, circular barrel;6, opening;7, filter plate;8, rotating rod;9, fixed plate;10, arc-shaped groove;11, fixed shaft;12, push plate;13, disc;14, pressboard;15, arc-shaped pad;16, feed inlet;17, drain outlet;18, stirring mechanism;181, rotating shaft;182, stirring paddle;19, sealing strip;20, material receiving port. Specific implementation

[0028] For example, Figures 1-11The utility model discloses a dewatering filter press device for sludge treatment, including box 1 and the support of installing at box 1, box 1 includes shell 101, for rotating rotation board 102, connecting rod 103 and box door 104, rotating rod 8 is rotationally connected with rotation board 102 and shell 101, connecting rod 103 is fixedly connected with rotation board 102, and box door 104 is in close contact with rotation board 102, shell 101 is all sealed arrangement and is contacted surface, the number of connecting rod 103 is several, and box door 104 is used for opening or closing, and one end of rotation board 102 is connected with external motor and is driven rotation board 102 rotation through external motor, shell 101 also includes the feed inlet 16 for feeding and the drain outlet 17 for draining, and the feed inlet 16 and the drain outlet 17 are communicated with stirring area 3 and filter pressing area 4 respectively, and stirring mechanism 18 includes rotating shaft 181 for rotating and several stirring paddles 182, and the stirring paddle 182 is fixedly connected with rotating shaft 181, and the stirring paddle 182 is located in circular barrel 5, and rotating shaft 181 is fixedly connected with shell 101, and one end of rotating shaft 181 is connected with external power source, and rotating shaft 181 is controlled rotation through external power source, and then makes stirring paddle 182 through rotation to sludge stirring and break up, be equipped with stirring area 3 and filter pressing area 4 in box 1, and stirring mechanism 18 for stirring and breaking up sludge and circular barrel 5 for rotating are installed in stirring area 3, and two sealing strips 19 are fixedly embedded in circular barrel 5, and the two sealing strips 19 are in close contact with the inner wall of stirring area 3, to prevent sludge and moisture from adhering to the camber surface of stirring area 3, and the opening 6 for receiving and discharging is equipped in circular barrel 5, and circular barrel 5 is attached to stirring area 3, and circular barrel 5 is rotationally connected with shell 101, and one end of circular barrel 5 is driven rotation by external power source, and the other end of circular barrel 5 is rotationally connected with the inner wall of stirring area 3, and filter plate 7 for water permeability and circular is fixedly installed in filter pressing area 4, and the inner wall of filter plate 7 is used for fixedly installing filter cloth matched therewith, and the feed inlet 20 of filter plate 7 is communicated with stirring area 3, and a plurality of filter holes are equipped in filter plate 7, and there is a gap between the outer side of filter plate 7 and the inner wall of filter pressing area 4, and the moisture after filter pressing is discharged from the drain outlet 17 of box 1 through the gap, and rotating rod 8 for rotating is installed in box 1, and rotating rod 8 is connected with external forward and reverse motor, and rotating rod 8 is controlled repeatedly forward and reverse work through forward and reverse motor, and fixed plate 9 is fixedly installed on the outer side of rotating rod 8, and a plurality of arc grooves 10 are equipped in fixed plate 9, and each arc groove 10 is slidably connected with fixed shaft 11, and one end of each fixed shaft 11 is fixedly connected with push plate 12, and disc 13 for driving push plate 12 rotation is rotationally installed on the outer side of rotating rod 8, and push plate 12 is slidably connected with the sliding groove in disc 13, and the outer end of each push plate 12 is fixedly connected with pressing plate 14 for extruding sludge, and pressing plate 14 is arc-shaped and attached to filter plate 7, and scraper 2 is fixedly embedded on the outer side of each pressing plate 14, and scraper 2 is used for scraping the sludge at filter plate 7,Each two adjacent pressing plates 14 are fixedly connected with arc-shaped pads 15 for sealing, which can be deformed under force, and the plurality of pressing plates 14 and the plurality of arc-shaped pads 15 form a ring structure and are attached to the filter plate 7.

[0029] In use, first, the circular barrel 5 is driven to rotate by an external power source, which can be a motor, and the opening 6 of the circular barrel 5 is rotated to a position facing the feed port 16, at which time the opening 6 should be in communication with the feed port 16, then the flocculating agent and sludge to be tested are injected into the circular barrel 5 in the stirring zone 3 through the feed port 16, and the circular barrel 5 is then driven to rotate, so that the opening 6 of the circular barrel 5 is rotated to another position, so that the opening 6 is not in communication with the feed port 16 and the receiving port 20 of the filter plate 7, at which time the inner wall of the stirring zone 3 seals the opening 6, and under the sealing action of the sealing strip 19, the sludge inside the stirring zone 3 will not flow out, then one end of the rotating shaft 181 is connected to an external power source, which can be a motor, and the rotating shaft 181 is controlled to rotate by the external power source, and when the rotating shaft 181 rotates, it drives the stirring paddle 182 to rotate, and the stirring paddle 182 stirs and breaks up the sludge by rotating, the stirring paddle 182 is made of hard alloy material and has a sharp cutting edge, which can cut and break up large lumps in the sludge to make them into smaller particles, and the stirring paddle 182 can fully stir and break up the sludge in the circular barrel 5, for example, when treating sludge containing large impurities, the breaking blade can cut these impurities, reducing the probability of clogging the filter cloth at the filter plate 7 in the subsequent pressure filtration process, and the stirring can ensure that the conditioning agent tested is uniformly dispersed in the sludge, improving the accuracy of the test.

[0030] Then, after the sludge is stirred and broken up, the circular barrel 5 is rotated to discharge the stirred and broken-up sludge in the circular barrel 5 to the receiving port 20 of the filter plate 7 through the opening 6 of the circular barrel 5, and then the rotating rod 8 is driven to rotate by a forward and reverse motor, the rotating rod 8 drives the fixed plate 9 to rotate, the plurality of arc-shaped grooves 10 in the fixed plate 9 respectively push the plurality of fixed shafts 11 to move, the fixed shafts 11 drive the plurality of push plates 12 to move along the sliding grooves of the disc 13 towards the rotating rod 8, and the plurality of push plates 12 respectively drive the plurality of pressing plates 14 to move, so that the plurality of pressing plates 14 can be repeatedly moved towards or away from the filter plate 7 by the forward and reverse motor, for example, Figure 11As shown, since the annular structure is formed between the plurality of pressing plates 14 and the plurality of arc-shaped pads 15, when the pressing plates 14 move away from the filter plate 7, the annular gap is formed between the pressing plates 14 and the filter plate 7, and the sludge in the receiving port 20 enters the annular gap formed between the pressing plates 14 and the filter plate 7, and the distance between every two adjacent pressing plates 14 is also reduced when the pressing plates 14 move away from the filter plate 7, at this time, the arc-shaped plates are deformed under the extrusion of the pressing plates 14 and form a convex structure, part of the sludge is left between the convex portions of the two arc-shaped pads 15, and another part of the sludge enters the next ring from the gap between the arc-shaped pad 15 and the filter plate 7, and finally the sludge is distributed in the annular gap, when the pressing plates 14 move towards the filter plate 7, the sludge is pressed by extrusion for pressure filtration, and the water in the sludge is discharged to the inner wall of the pressure filtration area 4 through the filter holes of the filter plate 7, and finally the water is discharged from the drain port 17 along the inner wall of the pressure filtration area 4.

[0031] Finally, the rotating plate 102 is driven to rotate by the external motor, the rotating plate 102 drives the plurality of connecting rods 103 to rotate, the connecting rods 103 drive the disc 13 to rotate, the disc 13 drives the push plate 12 to rotate, and the push plate 12 drives the pressing plate 14 to rotate, at this time, the plurality of pressing plates 14 can make a circular motion in the filter plate 7 with the rotating rod 8 as the center of rotation, it should be noted that the push plate 12 keeps reciprocating along the sliding groove in the disc 13 when the pressing plate 14 makes a circular motion, so as to avoid the dead angle of pressure filtration of the pressing plate 14, improve the pressure filtration efficiency, and ensure that the sludge is fully dewatered, and when the scraper 2 contacts the filter cloth at the filter plate 7, the filter cloth at the filter plate 7 is scraped off in the process of the circular motion, the burden of the filter cloth is reduced, and the filtration efficiency is further improved; when the sludge needs to be taken out, the box door 104 of the box body 1 is opened, the box door 104 is separated from the rotating plate 101 and the outer shell 102, and the sludge can be taken out from the filter plate 7.

[0032] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A dewatering filter press for sludge treatment, comprising a cabinet (1) and a supporting leg installed at the cabinet (1), characterized in that: The box (1) is provided with a stirring area (3) and a filter pressing area (4), the stirring area (3) is provided with a stirring mechanism (18) for stirring and crushing sludge and a circular barrel (5) for rotation, the circular barrel (5) is provided with an opening (6) for receiving and discharging materials, the filter pressing area (4) is fixedly provided with a filter plate (7) for water permeation and in a circular shape, the filter plate (7) is communicated with the stirring area (3) through a material receiving port (20), the box (1) is provided with a rotating rod (8) for rotation, the rotating rod (8) is fixedly provided with a fixed plate (9) on the outer side, the fixed plate (9) is provided with a plurality of arc-shaped grooves (10) in the inner portion, each arc-shaped groove (10) is slidably connected with a fixed shaft (11) in the inner portion, one end of each fixed shaft (11) is fixedly connected with a push plate (12), the rotating rod (8) is rotatably provided with a disc (13) for driving the push plate (12) to rotate on the outer side, the push plate (12) is slidably connected with a sliding groove in the disc (13), the outer end of each push plate (12) is fixedly connected with a pressing plate (14) for extruding sludge, each two adjacent pressing plates (14) are fixedly connected with an arc-shaped gasket (15) for sealing, the plurality of pressing plates (14) and the plurality of arc-shaped gaskets (15) form a ring structure and are in close contact with the filter plate (7).

2. The dewatering filter press apparatus for sludge treatment according to claim 1, characterized by: The box (1) comprises an outer shell (101), a rotating plate (102) for rotation, a connecting rod (103) and a box door (104), the rotating rod (8) is rotatably connected with the rotating plate (102) and the outer shell (101), the connecting rod (103) is fixedly connected with the rotating plate (102), and the box door (104) is in close contact with the rotating plate (102) and the outer shell (101).

3. The dewatering filter press apparatus for sludge treatment according to claim 2, characterized in that: The outer shell (101) further comprises a feeding port (16) for feeding and a drainage port (17) for draining, and the feeding port (16) and the drainage port (17) are respectively communicated with the stirring area (3) and the filter pressing area (4).

4. The dewatering filter press apparatus for sludge treatment according to claim 1, characterized in that: The pressing plate (14) is in an arc shape and is in close contact with the filter plate (7).

5. The dewatering filter press apparatus for sludge treatment according to claim 2, characterized in that: The stirring mechanism (18) comprises a rotating shaft (181) for rotation and a plurality of stirring paddles (182), the stirring paddles (182) are fixedly connected with the rotating shaft (181), the stirring paddles (182) are located in the circular barrel (5), and the rotating shaft (181) is fixedly connected with the outer shell (101).

6. The dewatering filter press apparatus for sludge treatment according to claim 1, characterized in that: Two sealing strips (19) are fixedly embedded in the circular barrel (5) and are in close contact with the inner wall of the stirring area (3).

7. The dewatering filter press apparatus for sludge treatment according to claim 1, characterized in that: Each pressing plate (14) is fixedly embedded with a scraper (2) on the outer side.

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