Multi-disc broke thickener

Abstract

The utility model relates to a multi-disc broke thickener which comprises a plurality of sections of paddle washing discs, a transmission side bearing device and a motor speed reducer are arranged on one side of the multi-section paddle washing disc shaft, and a supporting bearing is arranged on the other side of the multi-section paddle washing disc shaft; five concentration areas and six drainage areas are formed by ten filtering discs arranged in the pulp washing tank. The motor speed reducer is assembled on the multi-disc rotating shaft to drive the disc shaft to rotate so as to drive the filtering disc to rotate. The distribution cavity is used for isobaric distribution of the slurry inlet area and the drainage area. When the filtering disc rotates, white water in thin paper pulp in the concentration area flows into the drainage area under the action of gravity and is guided into the white water tank through the drainage pipe, and high-concentration paper pulp in the concentration area rises along with rotation of the disc along with increase of the concentration of the paper pulp in the concentration area. When the concentrated pulp rising along with rotation of the disc rises to the position of the discharging port, the concentrated pulp overflows from the discharging port and flows into the broke pool to be stored, the pulp feeding system can comprise a pump body, and the pulp is conveyed to the next section of pulp washing area from the previous section of pulp washing area through the pump body.

Description

Technical Field

[0001] The utility model relates to the technical field of pulp washing and concentrating machines, in particular to a multi-disc waste paper concentrator. Background Art

[0002] When the pulp bale gets damp during storage or is otherwise contaminated, it is necessary to break up the pulp bale and mix it thoroughly with water, and then filter it. In the prior art, a filter form of a mesh bag is adopted, and the mesh bag is damaged. After being damaged, it needs to be shut down for a long time for replacement, resulting in discontinuous processes.

[0003] For example, a discharging device for a disc vacuum filter disclosed in the authorized patent document with the application number CN202020613807.3 includes a discharging screw. The discharging screw is sleeved on the main body of a rotating shaft. One end of the rotating shaft is connected to a discharging motor. The discharging motor is installed above a lifting platform A. The other end of the rotating shaft 1 is fixed on a lifting platform B through a bearing seat. Height adjusting components are respectively installed on the outer sides of the lower ends of the lifting platform A and the lifting platform B; a scraping component is also installed on the main body of the rotating shaft. The scraping component includes a bearing. A ring is sleeved outside the bearing. Two symmetrically arranged clamping plates are fixed on the lower part of the main body of the ring. A compression spring is installed between the clamping plates. The upper end of the compression spring is fixedly connected to the outer surface of the ring, and the lower end is installed with a rubber scraping plate; the utility model can prevent materials from falling to the ground during the rotation of the outer extension plate of the disc groove, causing material loss and environmental pollution; the discharging screw blade can be adjusted in height according to the thickness requirement of the precipitated materials to improve the adaptability of the discharging device.

[0004] The above patent adopts the filter form of a mesh bag, and the mesh bag is damaged. After being damaged, it needs to be shut down for a long time for replacement, resulting in discontinuous processes. Therefore, we need to provide a multi-disc waste paper concentrator. Content of the Utility Model

[0005] The purpose of the present utility model is to provide a multi-disc waste paper concentrator, which forms 5 concentration zones and 6 drainage zones through 10 filter discs in the pulp washing tank. The motor reducer is assembled on the multi-disc rotating shaft to drive the rotation of the disc shaft, thereby driving the rotation of the filter discs. The distribution chamber is used for equal-pressure distribution of the pulp inlet zone and the drainage zone. When the filter discs rotate, the white water in the dilute pulp in the concentration zone flows into the drainage zone under the action of gravity and is introduced into the white water tank through the drain pipe. As the pulp concentration in the concentration zone increases, the high-concentration pulp in the concentration zone rises with the rotation of the disc. When the concentrated pulp rising with the rotation of the disc reaches the position of the discharge port, the concentrated pulp overflows from the discharge port and flows into the waste paper tank for storage. (The negative pressure of the filter disc will adsorb the pulp onto the surface of the filter disc and suck out the moisture in the pulp to achieve the concentration of the pulp. After the pulp in the previous pulp washing zone is concentrated, it is sent to the next pulp washing zone by the pulp feeding system for the next concentration.) The pulp feeding system may include a pump body, and the pump body is used to send the pulp from the previous pulp washing zone to the next pulp washing zone, and the filter discs also slide on the support bars to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A multi-disc waste paper concentrator, comprising:

[0007] Multiple pulp washing discs;

[0008] A drive side bearing device and a motor reducer are arranged on one side of the multiple pulp washing discs, and a support bearing is arranged on the other side of the multiple pulp washing discs;

[0009] A plurality of filter discs arranged in the multiple pulp washing discs, and a disc shaft is fixedly installed at the centers of the plurality of filter discs;

[0010] One end of the disc shaft close to the drive side bearing device is connected to a transmission device.

[0011] Preferably, a plurality of lifting members for supporting the filter discs are installed at the bottom of the inner wall of the multiple pulp washing discs. The lifting members include a mounting plate fixedly installed at the bottom of the inner wall of the multiple pulp washing discs through bolt members. Support bars are embedded on both sides of the mounting plate, and the arc-shaped convex parts at the tops of the support bars are in contact with the surfaces of the filter discs.

[0012] Preferably, a filter chamber is formed between the plurality of filter discs, and a pulp chamber is opened inside the filter discs.

[0013] Preferably, filter hole parts are opened on the surfaces of the plurality of filter discs.

[0014] Preferably, a driver for the rotation of the plurality of filter discs is arranged on one side of the multiple pulp washing discs, and the driver is connected to the drive side bearing device.

[0015] Preferably, a pulp baffle is installed at the top of the multiple pulp washing discs.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] In the present utility model, the partition between the discs of the multi-disc broke thickener is separated from the thickening area and the drainage area by a compensable special rubber sealing strip, completely eliminating the defect of loss in the traditional cylinder thickener. The multi-disc thickener can realize continuous high-pressure cleaning of the filter screen on the back slurry surface of the disc filter screen, solving the problem of pulp clogging the filter screen. Description of the Drawings

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

[0019] Figure 2 is a side cross-sectional view of the structure of the present utility model;

[0020] Figure 3 is the structure of the present utility model Figure 2 local enlarged schematic view at A in;

[0021] Figure 4 is a partial cross-sectional view of the structure of the present utility model;

[0022] Figure 5 is a detail view of the disc sealing strip of the present utility model.

[0023] In the figure: 1, multi-stage washing pulp disc; 2, drive side bearing device; 3, support bearing; 4, filter disc; 5, disc shaft; 6, lifting member; 61, bolt member; 62, mounting plate; 63, support bar; 7, filter cavity; 8, pulp cavity; 9, driver; 10, slurry retaining plate. Detailed Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-5 , the present utility model provides a technical solution: a multi-disc broke thickener, comprising:

[0026] Multi-stage washing pulp disc 1;

[0027] On one side of the multi-stage washing pulp disc 1, there is a drive side bearing device 2 and a motor reducer, and on the other side of the multi-stage washing pulp disc 1, there is a support bearing 3;

[0028] A plurality of filter discs 4 are arranged in the multi-stage pulp washing disc 1, and a disc shaft 5 is fixedly installed at the axis of the plurality of filter discs 4;

[0029] One end of the disc shaft 5 close to the drive side bearing device 2 is connected to the drive device.

[0030] Several lifting members 6 for supporting the filter discs 4 are installed at the bottom of the inner wall of the multi-stage pulp washing disc 1. The lifting member 6 includes a mounting plate 62 fixedly installed at the bottom of the inner wall of the multi-stage pulp washing disc 1 through a bolt member 61. Support strips 63 are embedded on both sides of the mounting plate 62, and the arc-shaped convex portions at the tops of the support strips 63 are in contact with the surface of the filter disc 4;

[0031] In this embodiment, a plurality of spaced discs are used to form spaced filter chambers 7 and pulp chambers 8. The discs are provided with filter holes. After the pulp enters the pulp chamber 8, the excess water and impurities flow into the filter chamber 7 through the filter holes for discharge, improving the efficiency of pulp concentration and the stability of the process. The drive side bearing device 2 and the support bearing 3 on the surface of the multi-stage pulp washing disc 1 allow the disc shaft 5 to rotate relative to the frame. The driver 9 is used to drive the disc shaft 5 to rotate, thereby driving the filter disc 4 to rotate. The driver 9 can be driven by an electric motor. When the filter disc 4 rotates, it will dip into the pulp in the pulp washing tank. The negative pressure of the filter disc 4 will adsorb the pulp onto the surface of the filter disc 4 and suck out the water in the pulp, realizing the concentration of the pulp. After the pulp in the previous pulp washing area is concentrated, it is sent to the next pulp washing area by the sizing system for the next concentration. The sizing system can include a pump body, and the pulp is sent from the previous pulp washing area to the next pulp washing area through the pump body. Moreover, the filter disc 4 also slides on the support strip 63. Among them, the support strip 63 at the top of the mounting plate 62 is used to support the filter disc 4, relieving the pressure on the disc shaft 5. Different from the traditional round mesh concentrator, the equipment floor area and dehydration area of the same equipment increase by more than 5 times. There is no pressure roller on the dehydration surface net, and the service life is greatly improved, which is convenient for cleaning. The pulp concentration area and the dehydration area formed by the discs are sealed with compensable sealing rubber strips, greatly reducing the loss of pulp;

[0032] Among them, 10 filter discs arranged in the pulp washing tank form 5 concentration zones and 6 drainage zones. The motor reducer is assembled on the multi-disc rotating shaft to drive the disc shaft to rotate, thereby driving the filter discs to rotate. The distribution chamber is used for equal-pressure distribution of the pulp inlet zone and the drainage zone. When the filter discs rotate, the white water in the dilute pulp in the concentration zone flows into the drainage zone under the action of gravity and is introduced into the white water tank through the drain pipe. As the pulp concentration in the concentration zone increases, the high-concentration pulp in the concentration zone rises with the rotation of the disc. When the concentrated pulp rising with the rotation of the disc reaches the position of the discharge port, the concentrated pulp overflows from the discharge port and flows into the waste paper tank for storage. (The negative pressure of the filter disc will adsorb the pulp onto the surface of the filter disc and suck out the moisture in the pulp to achieve the concentration of the pulp. After the pulp in the previous pulp washing zone is concentrated, it is sent to the next pulp washing zone by the pulp feeding system for the next concentration.) The pulp feeding system may include a pump body, and the pulp is sent from the previous pulp washing zone to the next pulp washing zone through the pump body, and the filter discs also slide on the support bars when rotating.

[0033] A filter chamber 7 is formed between multiple filter discs 4, and a pulp chamber 8 is provided inside the filter disc 4;

[0034] Furthermore, multiple spaced-apart discs are used to form spaced-apart filter chambers 7 and pulp chambers 8.

[0035] Filter hole portions are provided on the surfaces of multiple filter discs 4;

[0036] Specifically, the disc is provided with filter holes. After the pulp enters the pulp chamber 8, the excess moisture and impurities flow into the filter chamber 7 through the filter holes for discharge.

[0037] On one side of the multi-stage pulp washing disc 1, a driver 9 for rotating multiple filter discs 4 is provided, and the driver 9 is connected to the transmission side bearing device 2;

[0038] Among them, the driver 9 is used to drive the disc shaft 5 to rotate, thereby driving the filter discs 4 to rotate, and the driver 9 can be driven by an electric motor.

[0039] A baffle plate 10 is installed on the top of the multi-stage pulp washing disc 1;

[0040] In order to avoid the splashing of the slurry, the baffle plate 10 is arranged on the top of the multi-stage pulp washing disc 1 to achieve the effect of preventing splashing.

[0041] This device uses multiple disks arranged at intervals to form a filtering chamber 7 and a pulp chamber 8 arranged at intervals. The disks are provided with filtering holes. After the pulp enters the pulp chamber 8, the excess moisture and impurities flow into the filtering chamber 7 through the filtering holes for discharge, improving the efficiency of pulp concentration and the process stability. The driving-side bearing device 2 and the support bearing 3 on the surface of the multi-stage pulp washing disk 1 allow the disk shaft 5 to rotate relative to the frame. The driver 9 is used to drive the disk shaft 5 to rotate, thereby driving the filtering disk 4 to rotate. The driver 9 can be driven by an electric motor. When the filtering disk 4 rotates, it will be immersed in the pulp in the pulp washing tank. The negative pressure of the filtering disk 4 will adsorb the pulp onto the disk surface of the filtering disk 4 and suck out the moisture in the pulp, realizing the concentration of the pulp. After the pulp in the previous pulp washing area is concentrated, it is sent to the next pulp washing area by the sizing system for the next concentration. The sizing system can include a pump body, and the pulp is sent from the previous pulp washing area to the next pulp washing area through the pump body. Moreover, the filtering disk 4 also slides on the support bar 63, and the support bar 63 at the top of the mounting plate 62 is used to support the filtering disk 4, relieving the pressure on the disk shaft 5.

[0042] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-disc broke concentrator, characterized in that, Comprising: Multiple-stage pulp washing disc (1); A drive-side bearing device (2) and a motor reducer are arranged on one side of the multiple-stage pulp washing disc (1), and a support bearing (3) is arranged on the other side of the multiple-stage pulp washing disc (1); A plurality of filter discs (4) arranged in the multiple-stage pulp washing disc (1), and a disc shaft (5) is fixedly installed at the axis center of the plurality of filter discs (4); One end of the disc shaft (5) close to the drive-side bearing device (2) is connected to a transmission device.

2. The multi-disc broke concentrator according to claim 1, wherein: Several lifting members (6) for supporting the filter discs (4) are installed at the bottom of the inner wall of the multiple-stage pulp washing disc (1). The lifting member (6) includes a mounting plate (62) fixedly installed at the bottom of the inner wall of the multiple-stage pulp washing disc (1) through a bolt member (61). Support strips (63) are embedded on both sides of the mounting plate (62), and the arc-shaped convex part at the top of the support strip (63) is in contact with the surface of the filter disc (4).

3. A multi-disc broke concentrator according to claim 1, characterized in that: A filter chamber (7) is formed between the plurality of filter discs (4), and a pulp chamber (8) is formed inside the filter disc (4).

4. A multi-disc broke concentrator according to claim 3, wherein: Filter hole parts are formed on the surfaces of the plurality of filter discs (4).

5. A multi-disc broke concentrator according to claim 1, characterized in that: A driver (9) for rotating the plurality of filter discs (4) is arranged on one side of the multiple-stage pulp washing disc (1), and the driver (9) is connected to the drive-side bearing device (2).

6. The multi-disc broke thickener according to claim 1, characterized in that: A pulp baffle (10) is installed at the top of the multiple-stage pulp washing disc (1).

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