Paper pulp filtering device for waste paper recycling

Abstract

The paper pulp filtering device comprises a box body, a filter is arranged in the box body, elastic supporting structures are installed on the inner walls of the two opposite sides of the box body respectively, each elastic supporting structure comprises a supporting bottom plate and a slope supporting plate, and a plurality of sets of telescopic rods and springs are installed between the lower side of each slope supporting plate and the upper side of the corresponding supporting bottom plate. The front side and the rear side of the upper side wall of the filter are each provided with two inverted-L-shaped frames, the outer wall of the front side and the outer wall of the rear side of the box body are each provided with two L-shaped mounting plates, a rotating shaft is rotationally connected between the two L-shaped mounting plates, motors for driving the rotating shaft are installed on the outer sides of the L-shaped mounting plates, rotating wheels are installed on the outer sides of the rotating shafts, and multiple protruding blocks are installed on the outer sides of the rotating wheels. Compared with the prior art, the filter has the advantages that the convex blocks on the outer side of the rotating wheel beat the upper side of the inverted L-shaped frame to generate vibration, and the filter is vibrated, so that paper pulp is quickly filtered by the filter screen, and the filtering efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of paper pulp filtering, in particular to a paper pulp filtering device for recycling waste paper. Background Art

[0002] Waste paper treatment is the process of reprocessing recycled waste paper to obtain qualified fibers for the production of paper products. The recycling and utilization of waste paper is beneficial to protecting the environment, protecting forests, and saving resources. Waste paper can be reused many times. Pulp is a fibrous material made from plant fibers through different processing methods. It can be divided into mechanical pulp, chemical pulp and chemical mechanical pulp according to the processing method; it can also be divided into wood pulp, straw pulp, hemp pulp, reed pulp, sugarcane pulp, bamboo pulp, rag pulp, etc. according to the fiber raw materials used. It can also be divided into refined pulp, bleached pulp, unbleached pulp, high-yield pulp, semi-chemical pulp, etc. according to different purities. It is generally used to make paper and paperboard. In addition to being used to make special paper, refined pulp is also often used as a raw material for making cellulose derivatives such as cellulose esters and cellulose ethers.

[0003] The Chinese patent discloses: a pulp filtering device, patent application number: 201921291915.7, the patent "the trough body is arranged obliquely downward, the upper end of the trough body is provided with a pulp feed port, the lower end is provided with a pulp discharge port, the trough body is provided with a filter plate body for filtering pulp, the filter plate body divides the internal space of the trough body into a wastewater layer and a transmission layer, the wastewater layer is located below the transmission layer, the filter plate body is fixed with a fiber surface net for filtering pulp, the fiber surface net is provided with hard fibers, the mesh surface of the fiber surface net is composed of hard fibers equidistantly distributed in the warp and weft directions, the hard fibers are bent along the length direction to provide arches and recesses connected to each other end to end, and the intersection of two mutually perpendicular hard fibers is located at the center of the corresponding arch or recess."

[0004] However, when the device is in use, pulp is easily accumulated on the filter screen, causing the filter screen to become clogged, which is not conducive to filtering the pulp through the filter screen, reducing the filtering efficiency and being not conducive to use. For this reason, we propose a pulp filtering device for waste paper recycling. Utility Model Content

[0005] 1. Technical Problems Solved

[0006] The utility model aims to solve the problem that pulp is easily accumulated on the filter screen, resulting in clogging of the filter screen. A pulp filtering device for waste paper recycling is provided to solve the above problem.

[0007] 2. Technical Solution

[0008] In view of the above-mentioned deficiencies in the prior art, the utility model provides a pulp filtering device for waste paper recycling, comprising a box body, a feed pipe is installed through the upper part of one side wall of the box body, a discharge port is provided on the lower side of the box body, connecting plates are respectively installed on opposite sides of the box body, and a plurality of groups of supporting legs are installed on the lower side of the connecting plates.

[0009] A filter is provided inside the box, and elastic support structures are installed at different heights on the inner walls of two opposite sides of the box, the elastic support structure includes a support bottom plate and an inclined support plate, a plurality of groups of telescopic rods and springs are installed between the lower side of the inclined support plate and the upper side of the support bottom plate, and the filter is overlapped on the upper side of the inclined support plate.

[0010] Two groups of inverted L-shaped frames are respectively installed on the front and rear sides of the upper side wall of the filter, the upper side wall of the inverted L-shaped frame is placed above the front and rear side walls of the box, and two groups of L-shaped mounting plates are respectively installed on the front and rear outer walls of the box, and a rotating shaft is rotatably connected between the two front and rear opposite groups of L-shaped mounting plates, a motor driving the rotating shaft is installed on the outer side of the L-shaped mounting plate, a rotating wheel is installed on the outer side of the rotating shaft and directly above the inverted L-shaped frame, and a plurality of groups of protrusions are installed on the outer side of the rotating wheel.

[0011] As an improvement: the filter comprises a first filter plate and a second filter plate, and a plurality of connection blocks are installed at the lower side of the first filter plate and the upper side edge of the second filter plate.

[0012] As an improvement: the lower side of the inverted L-shaped frame is connected to the upper side of the first filter plate.

[0013] As an improvement: the height of one side of the first filter plate and the second filter plate away from the feed pipe is lower than the height of the other side.

[0014] As an improvement: the outer side of the rotating wheel is made of rubber material, and the protrusion is made of hard metal material.

[0015] As an improvement: a buffer ring is connected between the inner wall of the rotating wheel and the rotating shaft.

[0016] As an improvement: the side of the box body away from the feeding pipe is hinged to the lower side wall of the box body and is sealed to other adjacent side walls.

[0017] 3. Beneficial Effects

[0018] Compared with the prior art, the utility model has the following advantages: the motor drives the rotating shaft and the rotating wheel on its outer side to rotate, and the convex block on the outer side of the rotating wheel hits the upper side of the inverted L-shaped frame and pushes the inverted L-shaped frame to move downward, so that the elastic support structure is compressed, and then the resilience of the elastic support structure pushes the filter and the inverted L-shaped frame to move upward, so that the inverted L-shaped frame hits the outer side of the rotating wheel again, and this is repeated to vibrate the filter, so that the filter screen can quickly filter the pulp, thereby improving the filtering efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the upper structure of a pulp filtering device for waste paper recycling according to the utility model;

[0020] Figure 2 This is a schematic diagram of the lower structure of a pulp filtering device for waste paper recycling according to the utility model;

[0021] Figure 3 This is a schematic diagram of the filter structure of a pulp filtering device for waste paper recycling according to the utility model;

[0022] Figure 4 This is a schematic diagram of the rotating wheel connection structure of a pulp filtering device for waste paper recycling according to the utility model;

[0023] Figure 5 This is a schematic diagram of the box cross-sectional structure of a pulp filtering device for waste paper recycling according to the utility model;

[0024] Figure 6 This is an enlarged view of point A of a pulp filtering device for waste paper recycling according to the utility model;

[0025] Reference table of reference numerals:

[0026] 1. Box body; 2. Connecting plate; 3. Support leg; 4. Filter; 4.1. First filter plate; 4.2. Second filter plate; 4.3. Connecting block; 5. Support bottom plate; 6. Telescopic rod; 7. Inclined support plate; 8. Spring; 9. Feed pipe; 10. Discharge port; 11. L-shaped mounting plate; 12. Rotating shaft; 13. Motor; 14. Rotating wheel; 15. Bump; 16. Buffer ring; 17. Inverted L-shaped frame. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0028] Embodiment 1

[0029] like Figure 1 and Figure 2 As shown, a pulp filtering device for waste paper recycling comprises a box body 1, a feed pipe 9 is installed through the upper part of one side wall of the box body 1, a discharge port 10 is provided on the lower side of the box body 1, connecting plates 2 are respectively installed on opposite sides of the box body 1, and a plurality of supporting legs 3 are installed on the lower side of the connecting plate 2. The side of the box body 1 away from the feed pipe 9 is hinged to the lower side wall of the box body 1 and is sealed and connected to other adjacent side walls. A filter 4 is provided inside the box body 1, and elastic support structures are respectively installed at different heights on the inner walls of the opposite sides of the box body 1. Two groups of inverted L-shaped frames 17 are respectively installed on the front and rear sides of the upper side wall of the device 4, and the upper side wall of the inverted L-shaped frame 17 is placed above the front and rear side walls of the box body 1. Two groups of L-shaped mounting plates 11 are respectively installed on the front and rear outer walls of the box body 1. A rotating shaft 12 is rotatably connected between the two front and rear opposite groups of L-shaped mounting plates 11. A motor 13 for driving the rotating shaft 12 is installed on the outer side of the L-shaped mounting plate 11. A rotating wheel 14 is installed on the outer side of the rotating shaft 12 and directly above the inverted L-shaped frame 17, and a plurality of groups of protrusions 15 are installed on the outer side of the rotating wheel 14.

[0030] Through the above structure, the supporting legs 3 play a supporting role, which facilitates the discharge port 10 to discharge, and the pulp is filtered through the filter 4 to filter out larger paper fibers. The filter 4 is elastically supported by the elastic support structure. After the rotating wheel 14 rotates, the multiple groups of protrusions 15 impact the L-shaped mounting plate 11, and the vibration force of the L-shaped mounting plate 11 is transmitted to the filter 4, thereby accelerating the filtering speed of the filter 4. The specific structure is as follows:

[0031] like Figure 5 , Figure 6 As shown, the elastic support structure includes a supporting base plate 5 and an inclined support plate 7 , a plurality of telescopic rods 6 and springs 8 are installed between the lower side of the inclined support plate 7 and the upper side of the supporting base plate 5 , and the filter 4 is overlapped on the upper side of the inclined support plate 7 .

[0032] Through the above structure, the L-shaped mounting plate 11 is pushed downward by multiple groups of protrusions 15, so that the filter 4 moves downward at the same time, and the inclined support plate 7 moves downward to compress the multiple groups of telescopic rods 6 and springs 8. When the rotating wheel 14 continues to rotate, the protrusion 15 releases the pressure on the inclined support plate 7, and the filter 4 is pushed upward by the rebound force of the spring 8, and the L-shaped mounting plate 11 is hit and pressed down again by multiple groups of protrusions 15 to achieve repeated vibration of the filter 4.

[0033] like Figure 4As shown, the outer side of the rotating wheel 14 is made of rubber, the protrusion 15 is made of hard metal, and a buffer ring 16 is connected between the inner wall of the rotating wheel 14 and the rotating shaft 12 .

[0034] Through the above structure, the inverted L-shaped frame 17 is violently impacted by the protrusion 15 made of hard metal material, which can generate a large vibration. The inverted L-shaped frame 17 hits the outer side of the rotating wheel 14 made of rubber material, thereby reducing the collision damage to the rotating wheel 14. The buffer ring 16 reduces the vibration force on the rotating wheel 14 from being transmitted to the rotating shaft 12 and the shaft end of the motor 13, thereby reducing damage.

[0035] Embodiment 2

[0036] Based on Example 1, please refer to Figure 3 As shown, the filter 4 includes a first filter plate 4.1 and a second filter plate 4.2, and a plurality of connection blocks 4.3 are installed at the lower side of the first filter plate 4.1 and the upper side edge of the second filter plate 4.2. The lower side of the inverted L-shaped frame 17 is connected to the upper side of the first filter plate 4.1, and the height of the first filter plate 4.1 and the second filter plate 4.2 away from the feed pipe 9 is lower than the height of the other side.

[0037] Through the above structure of the second embodiment, the filter 4 is composed of two groups of filter plates, and the filtering apertures of the first filter plate 4.1 and the second filter plate 4.2 are different, which can improve the filtering effect of the pulp. By setting the first filter plate 4.1 and the second filter plate 4.2 as an inclined structure, the filtered paper fibers are moved to the lower side, which is convenient for subsequent cleaning.

[0038] The specific usage is as follows:

[0039] The box body 1 is supported by multiple sets of supporting legs 3 so that the lower side of the box body 1 is away from the ground. The collecting bucket can be placed at the lower side of the discharge port 10. The pulp raw material is sent into the box body 1 through the feeding pipe 9 and falls on the upper side of the filter 4. The pulp is filtered twice by the first filter plate 4.1 and the second filter plate 4.2, and the pulp is discharged into the collecting bucket through the discharge port 10.

[0040] During the filtering process, the motor 13 is started, and the motor 13 drives the rotating shaft 12 to rotate, thereby driving the rotating wheel 14 to rotate, and the protrusion 15 hits the inverted L-shaped frame 17, so that the inverted L-shaped frame 17 vibrates, and the vibration force is transmitted to the filter 4, so that the paper wool on the first filter plate 4.1 and the second filter plate 4.2 is filtered out faster, and the filtered paper wool is moved to one side. After the protrusion 15 hits the inverted L-shaped frame 17, the inverted L-shaped frame 17 is moved downward to compress the elastic support structure, and then the filter 4 and the inverted L-shaped frame 17 are pushed upward by the rebound force of the elastic support structure, so that the protrusion 15 hits the inverted L-shaped frame 17. After the filtering is completed, the hinged side wall of the box body 1 is opened, and the filter 4 is moved out from one side of the box body 1, so that the first filter plate 4.1 and the second filter plate 4.2 can be cleaned conveniently.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0043] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A pulp filtering device for waste paper recycling, comprising a box body (1), a feed pipe (9) is installed through the upper part of one side wall of the box body (1), a discharge port (10) is provided on the lower side of the box body (1), connecting plates (2) are respectively installed on opposite sides of the box body (1), and a plurality of supporting legs (3) are installed on the lower side of the connecting plate (2), characterized in that: A filter (4) is provided inside the box (1), and elastic support structures are respectively installed at different heights on the inner walls of two opposite sides of the box (1), the elastic support structure comprising a support bottom plate (5) and an inclined support plate (7), a plurality of groups of telescopic rods (6) and springs (8) are installed between the lower side of the inclined support plate (7) and the upper side of the support bottom plate (5), and the filter (4) is overlapped on the upper side of the inclined support plate (7); Two groups of inverted L-shaped frames (17) are respectively installed on the front and rear sides of the upper side wall of the filter (4); the upper side wall of the inverted L-shaped frame (17) is placed above the front and rear side walls of the box body (1); two groups of L-shaped mounting plates (11) are respectively installed on the front and rear outer walls of the box body (1); a rotating shaft (12) is rotatably connected between the two groups of L-shaped mounting plates (11) facing each other; a motor (13) for driving the rotating shaft (12) is installed on the outer side of the L-shaped mounting plate (11); a rotating wheel (14) is installed on the outer side of the rotating shaft (12) and directly above the inverted L-shaped frame (17); and a plurality of groups of protrusions (15) are installed on the outer side of the rotating wheel (14).

2. A pulp filtering device for waste paper recycling according to claim 1, characterized in that: The filter (4) comprises a first filter plate (4.1) and a second filter plate (4.2), and a plurality of groups of connection blocks (4.3) are installed at the lower side of the first filter plate (4.1) and the upper side edge of the second filter plate (4.2).

3. The pulp filtering device for waste paper recycling according to claim 2, characterized in that: The lower side of the inverted L-shaped frame (17) is connected to the upper side of the first filter plate (4.1).

4. The pulp filtering device for waste paper recycling according to claim 2, characterized in that: The height of one side of the first filter plate (4.1) and the second filter plate (4.2) away from the feed pipe (9) is lower than the height of the other side.

5. The pulp filtering device for waste paper recycling according to claim 1, characterized in that: The outer side of the rotating wheel (14) is made of rubber material, and the protrusion (15) is made of hard metal material.

6. The pulp filtering device for waste paper recycling according to claim 1, characterized in that: A buffer ring (16) is connected between the inner wall of the rotating wheel (14) and the rotating shaft (12).

7. The pulp filtering device for waste paper recycling according to claim 1, characterized in that: The side of the box body (1) away from the feeding pipe (9) is hinged to the lower side wall of the box body (1) and is sealed to other adjacent side walls.

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