Filtering device of sedimentation concentration type spiral discharging filtering centrifugal machine

Abstract

The utility model discloses a filtering device of a sedimentation concentration type spiral discharge filtering centrifugal machine, which comprises a support, a centrifugal machine main body is arranged on the support, a liquid discharge pipe is arranged at the bottom of the right side of the centrifugal machine main body, the bottom of the liquid discharge pipe is fixedly connected with a fixed shell, and an annular empty groove is arranged on the outer side of the fixed shell. And a driving filter part is rotationally mounted at the bottom of the fixed shell. According to the self-cleaning device, the annular empty groove is exposed by driving the filtering piece to rotate and starting the closing mechanism to ascend, at the moment, solid residues are thrown out by centrifugal force generated by rotation of the rotating driving filtering piece, the solid residues fall into the solid residue collecting barrel, self-cleaning is achieved, and after cleaning is completed, the closing mechanism is started to be closed again, and the annular empty groove is closed. Therefore, the device has the advantages that efficient self-cleaning can be achieved, disassembly is not needed, the cleaning process is simplified, and the overall cleaning and working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifuge unloading filter technical field more specifically, relate to the filter device of sedimentation concentration type spiral unloading filter centrifuge. BACKGROUND

[0002] Centrifuge is the machine of separating liquid and solid particle or liquid and liquid mixture in each component with centrifugal force. The working principle of horizontal centrifuge is: the drum and screw pusher rotate with certain differential speed and same direction, material is introduced into screw pusher continuously from feed pipe, accelerates to enter drum, under the action of centrifugal force field, the solid phase of heavier deposition in drum forms sediment layer. Screw pusher continuously pushes the solid phase of deposition to drum cone end, and discharges from sediment discharge port outside machine. The liquid phase of lighter forms inner layer liquid ring, and continuously overflows drum from drum large end overflow port, and discharges from liquid discharge port outside machine.

[0003] But the liquid inside discharged from the present liquid discharge port can contain small residual, so the filter mechanism is arranged at the liquid outlet, but the present filter mechanism needs to be disassembled and cleaned after reaching the upper limit of filtration, does not have the self-purification ability, the disassembly process is more complicated, cleaning is more frequent, the cleaning efficiency is lower, and the device operation efficiency is affected. UTILITY MODEL CONTENT

[0004] In view of the problems in the prior art, the purpose of the utility model is to provide a filter device of sedimentation concentration type spiral unloading filter centrifuge to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme.

[0006] The filter device of sedimentation concentration type spiral unloading filter centrifuge, including support, the support is installed with centrifuge main body, the bottom of the right side of centrifuge main body is installed with liquid discharge pipe, the bottom of liquid discharge pipe is fixedly connected with fixed shell, the outer side of fixed shell is provided with annular air slot, the bottom of fixed shell is rotatably installed with drive filter piece, the bottom of drive filter piece is connected with support, the outer side on fixed shell is installed with closing mechanism, the upper end of support is rotatably connected with sediment collection cylinder, the bottom of drive filter piece has liquid discharge ring pipe, and the liquid discharge ring pipe is fixedly connected with support.

[0007] Further description of the above technical scheme: the drive filter piece includes drive motor, rotating disc, conical block and conical filter screen, the drive motor is fixedly installed on the support, the output end of drive motor is fixedly connected with rotating disc through shaft coupling, the outer side of rotating disc is rotatably connected to the bottom of fixed shell, the conical block is fixedly connected to the rotating disc, the conical filter screen is fixedly installed on the rotating disc, and the conical filter screen is covered on the conical block.

[0008] As the further description of the above technical scheme: the closing mechanism comprises a sliding cover ring, two positioning frames, two U-shaped rods and two hydraulic cylinders, the sliding cover ring is slidably connected to the outer side of the fixed shell, the top of the sliding cover ring is fixedly connected with one end of the two U-shaped rods, the other end of the two U-shaped rods is fixedly connected with the movable end of the two hydraulic cylinders respectively, and the bottom of the hydraulic cylinder is fixedly installed to the top of the fixed shell.

[0009] As the further description of the above technical scheme: the bottom of the sliding cover ring is fixedly connected with a sealing ring, and the bottom of the sealing ring is in contact with the outer edge of the bottom of the fixed shell.

[0010] As the further description of the above technical scheme: a plurality of annular holes are arranged on the rotating disc, and the annular hole group is in communication with the bottom of the liquid discharge ring pipe.

[0011] As the further description of the above technical scheme: the outer side of the solid residue collecting cylinder is sleeved with a blocking ring.

[0012] Compared with the prior art, the advantages of the utility model lie in:

[0013] The solid residue filtered is discharged and cleaned by starting the driving filter element to rotate and cooperating with the closing mechanism, the device is self-cleaning, the device has the advantages of high self-cleaning efficiency, no need of disassembly, simplified cleaning process and improved overall cleaning and working efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view of the sectional structure of the utility model;

[0015] Figure 2 It is a front view of the sectional structure of the utility model; Figure 1 It is an enlarged schematic view of the structure of A part in the middle;

[0016] Figure 3 It is a part of the schematic view of the three-dimensional structure of the utility model;

[0017] Figure 4 It is a schematic view of the sectional structure of the utility model from the bottom;

[0018] Explanation of reference numerals in the drawing:

[0019] 1, support; 2, centrifuge main body; 3, liquid discharge pipe; 4, fixed shell; 5, annular air groove; 6, driving filter element; 61, driving motor; 62, rotating disc; 621, annular hole group; 63, conical block; 64, conical filter screen; 7, closing mechanism; 71, sliding cover ring; 711, sealing ring; 72, positioning frame; 73, U-shaped rod; 74, hydraulic cylinder; 8, solid residue collecting cylinder; 81, blocking ring; 9, liquid discharge ring pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described in connection with the drawings in the embodiments of the utility model.

[0021] Please refer to Figures 1 to 4 In the utility model, the filter device of the sedimentation concentration type spiral unloading filter centrifuge, including support 1, support 1 is installed with centrifuge main body 2, the bottom of centrifuge main body 2 right side is installed with drain pipe 3, the bottom of drain pipe 3 is fixedly connected with fixed shell 4, the outside of fixed shell 4 is provided with annular air slot 5, the bottom of fixed shell 4 is rotatably installed with drive filter piece 6, the bottom of drive filter piece 6 is connected with support 1, the outside on fixed shell 4 is installed with closure mechanism 7, the upper rotation of support 1 is connected with solid residue collection cylinder 8, the bottom of drive filter piece 6 has drain ring pipe 9, drain ring pipe 9 is fixedly connected with support 1.

[0022] In the utility model, through support 1 as the device main body, first start centrifuge main body 2 and separate the operation of internal material, dry residue is discharged through the outlet of left bottom, and liquid is discharged from right drain pipe 3, water containing a small amount of solid residue flows into the inside of fixed shell 4, and is filtered by drive filter piece 6, and the filtered liquid is directly discharged into the inside of drain ring pipe 9, and is finally discharged, then when drive filter piece 6 accumulates more solid residue, drive filter piece 6 is started to rotate, and closure mechanism 7 is started to rise, so that annular air slot 5 is exposed, at this moment, the rotation of drive filter piece 6 generates centrifugal force and throws solid residue outward, so that it falls into the inside of solid residue collection cylinder 8, realizes self-cleaning, after cleaning, closure mechanism 7 is started to close again, closes annular air slot 5, continues filtering operation, so that the device has the advantages of realizing efficient self-cleaning, without disassembly, simplifying cleaning process, improving overall cleaning and working efficiency, solve the problem that the liquid discharged in the prior art contains small residues, so a filtering mechanism is arranged at the liquid outlet, but the current filtering mechanism needs to be disassembled and cleaned after reaching the upper limit of filtering, does not have self-cleaning ability, the disassembly process is relatively complicated, cleaning is relatively frequent, and cleaning efficiency is relatively low, which affects the operation efficiency of the device.

[0023] Please refer to Figure 1 And Figure 3 Wherein: drive filter piece 6 includes drive motor 61, rotating disc 62, conical block 63 and conical filter screen 64, drive motor 61 is fixedly installed on support 1, the output end of drive motor 61 is fixedly connected with rotating disc 62 through a shaft coupling, the outside of rotating disc 62 is rotatably connected to the bottom of fixed shell 4, conical block 63 is fixedly connected to rotating disc 62, conical filter screen 64 is fixedly installed on rotating disc 62, and conical filter screen 64 is covered on conical block 63.

[0024] The utility model discloses, through starting drive motor 61 drive rotary disc 62 rotation, rotary disc 62 drive conical block 63 and conical filter screen 64 rotation, the solid residue that remains at the top of conical filter screen 64 is thrown out outward through centrifugal force, realizes cleaning, and when filtering, the liquid after filtering through conical filter screen 64 under the flow guiding of conical block 63, flow into the inside of liquid discharge ring pipe 9 downwards, and the structure is reasonable efficient.

[0025] Please refer to Figure 2 Wherein: the closing mechanism 7 includes the sliding cover ring 71, two positioning frames 72, two U-shaped rods 73 and two hydraulic cylinders 74, the inside of sliding cover ring 71 is slidably connected to the outside of fixed shell 4, the top of sliding cover ring 71 is fixedly connected with one end of two U-shaped rods 73, the other end of two U-shaped rods 73 is fixedly connected with the movable end of two hydraulic cylinders 74 respectively, the bottom of hydraulic cylinder 74 is fixedly installed to the top of fixed shell 4.

[0026] The utility model discloses, through starting two hydraulic cylinders 74 drive two U new pole 73 along positioning frame 72 vertical sliding, to drive sliding cover ring 71 along the outside of fixed shell 4 sliding, realize the closing and opening of annular air slot 5, realize the closing and opening of filtering area, it is convenient to clean solid residue.

[0027] Please refer to Figure 2 Wherein: the bottom of sliding cover ring 71 is fixedly connected with sealing ring 711, the bottom of sealing ring 711 is in contact with the bottom of fixed shell 4.

[0028] The utility model discloses, through sealing ring 711 make sliding cover ring 71 with the contact sealing effect between fixed shell 4 better.

[0029] Please refer to Figure 1 With Figure 4 Wherein: rotary disc 62 is set up with equidistance annular hole group 621, and the annular hole group 621 is communicated with the bottom of liquid discharge ring pipe 9.

[0030] The utility model discloses, through annular hole group 621 make the liquid that rotary disc 62 is filtered successfully and is arranged in the inside of liquid discharge ring pipe 9.

[0031] Please refer to Figure 1 Wherein: the outside of solid residue collection cylinder 8 is equipped with blocking ring 81.

[0032] The utility model discloses, through blocking ring 81 convenient to dismantle, and blocking ring 81 can stop the solid residue that throws out, and makes it concentrate and fall into the inside of solid residue collection cylinder 8, and it is convenient to collect and clean up.

[0033] The above merely describes a preferred embodiment of the present application; the scope of protection of the present application is not limited thereto. Any skilled person in the art, according to the technical scheme and improvement concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the scope of protection of the present application.

Claims

1. A filtering device for a decanter centrifuge of the sedimentation concentration type, comprising a support (1), characterised in that: The support (1) is provided with a centrifuge body (2), a drain pipe (3) is arranged at the bottom of the right side of the centrifuge body (2), a fixed shell (4) is fixedly connected to the bottom of the drain pipe (3), an annular air slot (5) is arranged on the outer side of the fixed shell (4), a driving filter (6) is rotatably arranged at the bottom of the fixed shell (4), the bottom of the driving filter (6) is connected to the support (1), a closing mechanism (7) is arranged on the outer side of the fixed shell (4), a solid residue collecting cylinder (8) is rotatably arranged on the support (1), and a drain ring pipe (9) is arranged at the bottom of the driving filter (6) and fixedly connected to the support (1).

2. The filter apparatus of a decanter centrifuge according to claim 1, wherein: The driving filter (6) comprises a driving motor (61), a rotating disc (62), a conical block (63) and a conical filter screen (64), the driving motor (61) is fixedly arranged on the support (1), the output end of the driving motor (61) is fixedly connected to the rotating disc (62) through a shaft coupling, the outer side of the rotating disc (62) is rotatably connected to the bottom of the fixed shell (4), the conical block (63) is fixedly connected to the rotating disc (62), and the conical filter screen (64) is fixedly arranged on the rotating disc (62) and covers the conical block (63).

3. The filter apparatus of a decanter centrifuge according to claim 1, wherein: The closing mechanism (7) comprises a sliding cover ring (71), two positioning frames (72), two U-shaped rods (73) and two hydraulic cylinders (74), the sliding cover ring (71) is slidably connected to the outer side of the fixed shell (4), the top of the sliding cover ring (71) is fixedly connected to one end of the two U-shaped rods (73), the other ends of the two U-shaped rods (73) are fixedly connected to the movable ends of the two hydraulic cylinders (74), and the bottoms of the hydraulic cylinders (74) are fixedly arranged on the top of the fixed shell (4).

4. The filter apparatus of a decanter centrifuge according to claim 3, wherein: The bottom of the sliding cover ring (71) is fixedly connected with a sealing ring (711), and the bottom of the sealing ring (711) is in contact with the bottom of the fixed shell (4).

5. The filter apparatus of a settlement concentration type spiral-unloading filter centrifuge according to claim 2, characterized in that: A plurality of annular hole groups (621) are arranged at equal distances on the rotating disc (62), and the annular hole groups (621) are in communication with the drain ring pipe (9) at the bottom.

6. The filter apparatus of a settlement concentration type spiral-unloading filter centrifuge according to claim 1, characterized by: A stop ring (81) is sleeved and clamped on the outer side of the solid residue collecting cylinder (8).

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