Papermaking white water filtering device

Abstract

The utility model discloses a papermaking white water filtering device which comprises a container shell, a filter element and a driving piece, the container shell is provided with a water inlet and a sewage outlet located at the lower end, the filter element is arranged in the container shell, two rotating shafts which are oppositely arranged are arranged on the outer wall of the filter element, the two rotating shafts are both rotationally connected with the container shell, and the driving piece is installed outside the container shell. The driving end of the filter element is in transmission connection with any rotating shaft, the other rotating shaft is a tubular shaft, one end of the tubular shaft is communicated with the interior of the filter element, and the other end of the tubular shaft penetrates out of the container shell to form a white water outlet, so that papermaking white water can be introduced into the container shell and can permeate into the filter element to be filtered; impurities and foreign matters in the white water are intercepted by the filter element, and the intercepted impurities and foreign matters can be thrown to be separated from the filter element under the action of centrifugal force when the filter element rotates at a high speed, so that the self-cleaning of the filter element is realized, and finally, the filtered white water can be regularly discharged through the sewage outlet.

Description

Technical Field

[0001] The utility model belongs to the field of filtering equipment, in particular to a papermaking white water filtering device. Background Art

[0002] Papermaking white water is water recycled in the papermaking process, which contains certain fine impurities and foreign matter (such as paper fibers, sand, etc.). In the papermaking process, the white water used for spraying has high requirements for cleanliness. If it is used directly for spraying, the impurities and foreign matter will cause the nozzle to be blocked. It is usually filtered before spraying, but the existing water filtering device needs to be cleaned after a period of use to maintain the filtering performance, and the device needs to be shut down for cleaning, or two filtering devices need to be set up for rotation operation, but this will increase the equipment investment cost. Although the document number CN104548715A "White Water Microfiltration Screen" discloses a white water microfiltration device, its structure is complicated. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a papermaking white water filtering device with simple structure, high filtering efficiency and self-cleaning function.

[0004] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a papermaking white water filtering device, comprising a container shell, a filter element and a driving member, the container shell having a water inlet and a sewage outlet at the lower end, the filter element being placed in the container shell, and two oppositely arranged rotating shafts being arranged on the upper outer wall of the filter element, and both of the rotating shafts being rotatably connected to the container shell, the driving member being installed outside the container shell, and its driving end being transmission-connected to any one of the rotating shafts, and the other rotating shaft being a tubular shaft, one end of which is communicated with the interior of the filter element, and the other end of which passes through the outside of the container shell and constitutes a white water outlet.

[0005] The beneficial effect of the above technical solution is that papermaking white water can be passed into the container shell, and the papermaking white water can penetrate into the filter element for filtration, and finally the filtered white water is discharged through the white water outlet, while the impurities and foreign matter in the white water are retained by the filter element, and when the filter element rotates at high speed, the retained impurities and foreign matter can be thrown away by the centrifugal force and separated from the filter element, thereby realizing self-cleaning of the filter element, and finally it can be discharged regularly through the sewage outlet.

[0006] In the above technical solution, the two rotating shafts are vertically arranged on the filter element and are spaced apart up and down. The rotating shaft located above is rotatably connected to the top wall of the container shell and is transmission-connected to the driving member. The rotating shaft located below is rotatably connected to the bottom wall of the container shell, and the rotating shaft located below is a tubular shaft.

[0007] The beneficial effect of the above technical solution is that the filter element is rotated horizontally, and the white water outlet is located at the lower end of the filter element, which can make the filtering effect better.

[0008] The filter element in the above technical solution includes two end plates and a cylindrical sieve shell, the two end plates are horizontally arranged and spaced apart up and down, the two rotating shafts are respectively fixedly connected to the middle of the corresponding end plates, the sieve shell is vertically arranged between the two end plates, and the two ends of the sieve shell are respectively connected to the edges of the corresponding end plates, the sieve shell is evenly distributed with sieve holes, and the rotating shaft located below passes through the end plates located below.

[0009] The beneficial effects of the above technical solution are: its structure is simple, the filtration area of ​​the sieve shell is large, and its filtration efficiency is high.

[0010] The sieve shell described in the above technical solution has a sieve hole of less than 120 meshes.

[0011] The beneficial effect of the above technical solution is that it has high filtering efficiency.

[0012] In the above technical solution, multiple vertical support beams are arranged at circumferential intervals at the edges between the two end plates, and both ends of each support beam are respectively connected to corresponding parts of the edges of the two end plates. Multiple support beams are located in the sieve shell and jointly support the sieve shell.

[0013] The beneficial effect of the above technical solution is that it makes the installation stability of the sieve shell better, and at the same time can reduce the bearing force of the sieve shell, and avoid the sieve shell from twisting when the two end plates rotate asynchronously.

[0014] In the above technical solution, a plurality of hoops are vertically spaced outside the sieve shell, and the hoops clamp the sieve shell onto the plurality of support beams.

[0015] The beneficial effect of the above technical solution is that the installation stability of the sieve shell can be further improved, and the sieve shell can be prevented from being deformed under the action of centrifugal force.

[0016] The driving member in the above technical solution is a motor.

[0017] The beneficial effect of the above technical solution is that it has a simple structure.

[0018] In the above technical solution, a valve is provided at the sewage outlet.

[0019] The beneficial effect of the above technical solution is that the valve can be opened regularly to discharge the dirt in the container shell.

[0020] In the above technical solution, the two rotating shafts are extended to be integrally formed into a rotating shaft member a, and the end of the rotating shaft member a away from the driving member has a water outlet channel connected to the inside of the filter element, and the water outlet channel constitutes the white water outlet.

[0021] The beneficial effects of the above technical solution are: its structure is simple and the filter element has good load-bearing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the papermaking white water filtering device described in Example 1 of the utility model;

[0023] Figure 2 This is a schematic structural diagram of the container shell and the filter element in Example 1 of the utility model in a cross-sectional state;

[0024] Figure 3 This is a schematic structural diagram of the cross-section of the filter element described in Example 1 of the utility model;

[0025] Figure 4 This is a structural cross-sectional view of the filter element described in Example 2 of the utility model.

[0026] In the figure: 1 container shell; 2 filter element; 11 water inlet; 12 sewage outlet; 13 white water outlet; 14 valve; 21 rotating shaft; 21a rotating shaft member; 211 water outlet channel; 22 end plate; 23 sieve shell; 24 support beam; 25 hoop; 3 driving member; 4 rotating joint. DETAILED DESCRIPTION

[0027] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0028] Example 1

[0029] like Figure 1-Figure 3As shown, this embodiment provides a papermaking white water filtering device, including a container shell 1, a filter element 2 and a driving member 3, the container shell 1 has a water inlet 11 and a sewage outlet 12 at the lower end, the filter element 2 is placed in the container shell 1, and two rotating shafts 21 arranged opposite to each other are arranged on the upper outer wall of the filter element 2, and the two rotating shafts 21 are rotatably connected to the container shell 1, the driving member 3 is installed outside the container shell 1, and its driving end is transmission-connected to any one of the rotating shafts 21, and the other rotating shaft is connected to the outer wall of the filter element 2. 21 is a tubular shaft, one end of which is connected to the inside of the filter element 2, and the other end of which passes through the outside of the container shell 1 and forms a white water outlet 13, so that papermaking white water can be passed into the container shell, and the papermaking white water can penetrate into the inside of the filter element for filtration, and finally the filtered white water is discharged through the white water outlet, while the impurities and foreign matter in the white water are retained by the filter element, and the filter element can scatter the retained impurities and foreign matter under the action of centrifugal force when rotating at high speed to separate from the filter element, thus realizing self-cleaning of the filter element, and finally it can be discharged regularly through the sewage outlet.

[0030] In the above technical solution, the two rotating shafts 21 are vertically arranged on the filter element 2 and are spaced apart from each other. The rotating shaft 21 located above is rotatably connected to the top wall of the container shell 1 and is transmission-connected to the driving member 3, and the rotating shaft 21 located below is rotatably connected to the bottom wall of the container shell 1, and the rotating shaft 21 located below is a tubular shaft, so that the filter element rotates horizontally, and the white water outlet is located at the lower end of the filter element, which can make its filtering effect better.

[0031] like Figure 2 As shown, the filter element 2 in the above technical solution includes two end plates 22 and a cylindrical sieve shell 23, the two end plates 22 are horizontally arranged and spaced apart up and down, the two rotating shafts 21 are respectively fixedly connected to the middle of the corresponding end plates 22, the sieve shell 23 is vertically arranged between the two end plates 22, and the two ends of the sieve shell 23 are respectively connected to the edges of the corresponding end plates 22, the sieve shell 23 is evenly distributed with sieve holes, the rotating shaft 21 located below passes through the end plates 22 located below, the structure is simple, the filtration area of ​​the sieve shell is large, and the filtration efficiency is high.

[0032] The sieve shell 23 in the above technical solution has a sieve hole of less than 120 meshes, and has high filtering efficiency.

[0033] like Figure 3 As shown, in the above technical solution, a plurality of vertically arranged support beams 24 are circumferentially spaced at intervals at the edges between the two end plates 22, and both ends of each of the support beams 24 are respectively connected to corresponding portions of the edges of the two end plates 22. The plurality of support beams 24 are located in the sieve shell 23 and jointly prop the sieve shell 23 open, thereby improving the installation stability of the sieve shell and reducing the bearing force of the sieve shell, thereby avoiding twisting of the sieve shell when the two end plates rotate asynchronously.

[0034] like Figure 1 As shown, in the above technical solution, a plurality of hoops 25 are vertically spaced outside the sieve shell 23, and the hoops 25 clamp the sieve shell 23 on the plurality of support beams 24, so as to further improve the installation stability of the sieve shell and prevent the sieve shell from being deformed under the action of centrifugal force.

[0035] The driving member 3 in the above technical solution is a motor, which has a simple structure.

[0036] In the above technical solution, a valve 14 is provided at the sewage outlet 12, so that the valve can be opened regularly to discharge the dirt in the container shell.

[0037] The sieve shell can be a metal wire mesh (such as steel wire mesh, copper wire mesh, etc.), and of course can also be a cloth-like woven material.

[0038] A rotary joint 4 is installed at the lower end of the container shell, the rotating end of the rotary joint is coaxially connected to the rotating shaft located below, and the other end of the rotary joint can be connected to a pipeline.

[0039] When the filter element in this embodiment is in operation, the valve is in a closed state so that the white water in the container shell can cover a portion of the sieve shell. The speed of the filter element driven by the driving member in this embodiment can be 10-100r / min, preferably 30-50r / min, and the driving member can specifically be a reduction motor.

[0040] Example 2

[0041] Same as Example 1, except that Figure 4 As shown, in the above technical solution, the two rotating shafts 21 extend to be integrally formed into a rotating shaft member 21a, and the end of the rotating shaft member 21a away from the driving member 3 has a water outlet channel 211 connected to the inside of the filter element 2, and the water outlet channel constitutes the white water outlet 13, which has a simple structure and a good filter element load-bearing effect.

[0042] It should be noted that the above detailed descriptions are illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0043] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0044] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example.

[0045] Also, when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0046] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or apparatus.

[0047] For ease of description, spatially relative terms such as "on", "above", "on the upper surface", "upper", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figures. It should be understood that the spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures.

[0048] For example, if a device in a drawing is inverted, a device described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above" can encompass both "above" and "below." The device may also be oriented in other different ways (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein interpreted accordingly.

[0049] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A papermaking white water filtering device, characterized in that: The invention comprises a container shell (1), a filter element (2) and a driving member (3), wherein the container shell (1) has a water inlet (11) and a sewage outlet (12) located at the lower end, the filter element (2) is placed in the container shell (1), and two rotating shafts (21) arranged opposite to each other are arranged on the upper outer wall of the filter element (2), and both the rotating shafts (21) are rotatably connected to the container shell (1), the driving member (3) is installed outside the container shell (1), and its driving end is drivingly connected to any one of the rotating shafts (21), and the other rotating shaft (21) is a tubular shaft, one end of which is communicated with the interior of the filter element (2), and the other end of which passes through the container shell (1) to form a white water outlet (13).

2. The papermaking white water filtering device according to claim 1, characterized in that: The two rotating shafts (21) are vertically arranged on the filter element (2) and are spaced apart from each other in the upper and lower parts. The rotating shaft (21) located at the upper part is rotationally connected to the top wall of the container shell (1) and is transmission-connected to the driving member (3). The rotating shaft (21) located at the lower part is rotationally connected to the bottom wall of the container shell (1), and the rotating shaft (21) located at the lower part is a tubular shaft.

3. The papermaking white water filtering device according to claim 2, characterized in that: The filter element (2) comprises two end plates (22) and a cylindrical sieve shell (23). The two end plates (22) are horizontally arranged and spaced apart from each other. The two rotating shafts (21) are respectively fixedly connected to the middle of the corresponding end plates (22). The sieve shell (23) is vertically arranged between the two end plates (22), and the two ends of the sieve shell (23) are respectively connected to the edges of the corresponding end plates (22). The sieve shell (23) is evenly distributed with sieve holes. The rotating shaft (21) located at the bottom passes through the end plates (22) located at the bottom.

4. The papermaking white water filtering device according to claim 3, characterized in that: The sieve shell (23) has a sieve opening of less than 120 meshes.

5. The papermaking white water filtering device according to claim 3, characterized in that: A plurality of vertically arranged support beams (24) are arranged at intervals in an annular direction at the edge between the two end plates (22), and the two ends of each support beam (24) are respectively connected to corresponding portions of the edge of the two end plates (22). The plurality of support beams (24) are located in the sieve shell (23) and together support the sieve shell (23).

6. The papermaking white water filtering device according to claim 5, characterized in that: A plurality of hoops (25) are vertically spaced outside the sieve shell (23), and the hoops (25) clamp the sieve shell (23) onto the plurality of support beams (24).

7. The papermaking white water filtering device according to claim 1, characterized in that: The driving member (3) is a motor.

8. The papermaking white water filtering device according to claim 1, characterized in that: A valve (14) is provided at the sewage outlet (12).

9. The papermaking white water filtering device according to any one of claims 1 to 8, characterized in that: The two rotating shafts (21) extend to be integrally formed into a rotating shaft member (21a), and one end of the rotating shaft member (21a) away from the driving member (3) has a water outlet channel (211) connected to the interior of the filter element (2), and the water outlet channel constitutes the white water outlet (13).

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