A vibrating screen for processing wood fiber powder

Abstract

This invention proposes a vibrating screen for processing wood fiber powder, comprising a filter screen body. The internal cavity of the filter screen body is divided into a screening chamber and a cleaning chamber by an inner partition and a side partition. A first screening screen cylinder is slidably connected to the middle of the inner partition, and a second screening screen cylinder is slidably fitted to the middle of the first screening screen cylinder. This invention uses a first motor to drive a first lead screw, causing the first lead screw to engage with a first connecting seat and, guided by a first sliding shaft, control the first screening screen cylinder to enter either the screening chamber or the cleaning chamber. Similarly, a second motor drives a second lead screw, causing the second lead screw to engage with a second connecting seat and, guided by a second sliding shaft, control the second screening screen cylinder to enter either the screening chamber or the cleaning chamber. The designed composite cylindrical filter screen structure facilitates switching between the first and second screening screen cylinders entering the screening chamber for filtration, ensuring effective and orderly filtration.

Description

Technical Field

[0001] This utility model relates to the field of vibrating screen technology, and in particular to a vibrating screen for processing wood fiber powder. Background Technology

[0002] In the processing of wood fiber powder, vibrating screens are typically used to separate granular wood fibers of different sizes. Traditional vibrating screen equipment usually only has a single working screen. Over time, the screen is prone to clogging, affecting its operation and requiring frequent screen replacements. This is cumbersome and disrupts the processing. Utility Model Content

[0003] To address the aforementioned problems, this invention proposes a vibrating screen for processing wood fiber powder, which more accurately solves the problems described above.

[0004] This utility model is achieved through the following technical solution:

[0005] This utility model proposes a vibrating screen for processing wood fiber powder, including a filter screen body. The internal cavity of the filter screen body is divided into a screening chamber and a cleaning chamber by an inner partition and a side partition. A first screening screen cylinder is slidably connected to the middle of the inner partition, and a second screening screen cylinder is slidably fitted to the middle of the first screening screen cylinder. A first lead screw and a first sliding shaft are connected to the side partition. A first connecting seat is provided on the outer wall of the inner end of the first screening screen cylinder, corresponding to the positions of the first lead screw and the first sliding shaft. The first lead screw and the first sliding shaft are respectively connected to the outer wall of the first screening screen cylinder. Two first connecting seats are connected together. A first motor is provided on the outer side of the side partition, and the output end of the first motor is drivenly connected to one end of the first lead screw. A baffle plate is provided in the middle of the second screening cylinder and at the position of the inner partition. A second lead screw and a second sliding shaft are connected between the baffle plate and the side partition. A second connecting seat is provided at the inner port of the second screening cylinder, and the second connecting seat is connected to the second lead screw and the second sliding shaft. A second motor is provided on the outer side of the side partition, and the output shaft end of the second motor is drivenly connected to one end of the second lead screw.

[0006] Furthermore, the outer wall of the first screening cylinder is provided with several first guide rails, the guide rails are aligned with the axial direction of the first screening cylinder, and the first screening cylinder is slidably connected to the inner partition through the first guide rails.

[0007] Furthermore, the inner wall of the first screening cylinder is provided with several second guide rails, and the outer wall of the second screening cylinder is provided with guide rail matching strips at positions corresponding to the second guide rails. The guide rail matching strips provided on the outer wall of the second screening cylinder are slidably connected to the second guide rails provided on the inner wall of the first screening cylinder.

[0008] Furthermore, the outer ring shape of the barrier plate matches the internal cavity of the second screening cylinder, and the barrier plate slides in contact with the inner wall of the second screening cylinder.

[0009] Furthermore, a high-pressure nozzle is provided at the top of the inner cavity of the cleaning chamber, and a sewage discharge port is provided at the bottom of the inner cavity of the cleaning chamber.

[0010] Furthermore, an air inlet is provided on one side of the cleaning chamber, a fan is provided at the outer port of the air inlet, an electric heating grid is provided in the opening of the air inlet, and an exhaust window is provided on the side of the cleaning chamber away from the air inlet, with a dust filter provided at the opening of the exhaust window.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model uses a first motor to drive a first lead screw, causing the first lead screw to mesh with a first connecting seat and, guided by a first sliding shaft, control the first screening cylinder to enter the screening chamber or the cleaning chamber; and uses a second motor to drive a second lead screw, causing the second lead screw to mesh with a second connecting seat and, guided by a second sliding shaft, control the second screening cylinder to enter the screening chamber or the cleaning chamber. The designed composite cylindrical filter screen structure facilitates switching between the first and second screening cylinders entering the screening chamber to achieve filtration, ensuring effective filtration and an orderly process.

[0013] 2. The high-pressure nozzle of this utility model uses an external water source to perform high-pressure rinsing on the first or second screening cylinder entering the cleaning chamber, clearing blockages in the filter holes of the first or second screening cylinder and achieving a self-cleaning effect. Under the blowing of the fan, the air introduced is heated by the electric heating grid to heat and dry the first or second screening cylinder in the cleaning chamber, facilitating quick and easy switching between uses. Attached Figure Description

[0014] Figure 1 This is a three-dimensional half-sectional view of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the first and second screening cylinders in this utility model;

[0016] Figure 3 This is a front sectional view of the structure of this utility model;

[0017] Figure 4 This is a side sectional view of the structure of this utility model.

[0018] In the diagram: 1. Filter screen body; 101. Inner partition; 102. Screening chamber; 1021. Cleaning chamber; 1022. Sewage discharge port; 1023. Air inlet port; 1024. Exhaust window; 2. First screening screen cylinder; 201. First guide rail; 2011. Second guide rail; 202. First connecting seat; 203. First lead screw; 2031. First sliding shaft; 2032. First motor; 3. Second screening screen cylinder; 301. Guide rail and guide bar; 302. Second connecting seat; 303. Second lead screw; 3031. Second sliding shaft; 3032. Second motor; 304. Baffle plate; 4. High-pressure nozzle; 5. Fan; 501. Electric heating mesh. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1

[0021] A vibrating screen for processing wood fiber powder includes a screen body 1. The inner cavity of the screen body 1 is divided into a screening chamber 102 and a cleaning chamber 1021 by an inner partition 101 and a side partition 1011. A first screening cylinder 2 is slidably connected to the middle of the inner partition 101, and a second screening cylinder 3 is slidably fitted to the middle of the first screening cylinder 2, forming a composite cylindrical screen structure. This facilitates switching between the first screening cylinder 2 and the second screening cylinder 3 to enter the screening chamber 102 for screening.

[0022] The outer wall of the first screening cylinder 2 is provided with several first guide rails 201. The guidance of the first guide rails 201 is consistent with the axial direction of the first screening cylinder 2. The first screening cylinder 2 is slidably connected to the inner partition 101 through the first guide rails 201 to ensure the stability of the first screening cylinder 2 during the sliding process. The inner wall of the first screening cylinder 2 is provided with several second guide rails 2011. The outer wall of the second screening cylinder 3 is provided with guide rail matching guide strips 301 at the positions corresponding to the second guide rails 2011. The guide rail matching guide strips 301 on the outer wall of the second screening cylinder 3 are slidably connected to the second guide rails 2011 on the inner wall of the first screening cylinder 2 to ensure the stability of the second screening cylinder 3 during the sliding process.

[0023] A first lead screw 203 and a first sliding shaft 2031 are connected to the side partition 1011. A first connecting seat 202 is provided on the outer wall of the inner end of the first screening cylinder 2, corresponding to the positions of the first lead screw 203 and the first sliding shaft 2031. The first lead screw 203 and the first sliding shaft 2031 are respectively connected to the two first connecting seats 202 provided on the outer wall of the first screening cylinder 2. A first motor 2032 is provided on the outer side of the side partition 1011, and the output end of the first motor 2032 is connected to one end of the first lead screw 203. The first motor 2032 drives the first lead screw 203, so that the first lead screw 203 meshes with the first connecting seat 202 and is guided by the first sliding shaft 2031, controlling the first screening cylinder 2 to enter the screening chamber 102 or the cleaning chamber 1021.

[0024] A baffle plate 304 is provided in the middle of the second screening cylinder 3 and at the position of the inner partition 101. A second lead screw 303 and a second sliding shaft 3031 are connected between the baffle plate 304 and the side partition 1011. A second connecting seat 302 is provided at the inner port of the second screening cylinder 3, and the second connecting seat 302 is connected to the second lead screw 303 and the second sliding shaft 3031. A second motor 3032 is provided on the outer side of the side partition 1011, and the output shaft end of the second motor 3032 is connected to one end of the second lead screw 303. The second motor 3032 drives the second lead screw 303, so that the second lead screw 303 meshes with the second connecting seat 302 and is guided by the second sliding shaft 3031, thus controlling the second screening cylinder 3 to enter the screening chamber 102 or the cleaning chamber 1021.

[0025] The outer ring shape of the baffle plate 304 matches the internal cavity of the second screening cylinder 3. The baffle plate 304 slides in contact with the inner wall of the second screening cylinder 3. The baffle plate 304 is used to seal one side of the inner cavity of the first screening cylinder 2 or the second screening cylinder 3 to prevent material leakage.

[0026] The technical solutions described in the above embodiments of this application have at least the following technical effects or advantages: The present invention drives the first lead screw 203 via the first motor 2032, causing the first lead screw 203 to mesh with the first connecting seat 202 and, guided by the first sliding shaft 2031, control the first screening cylinder 2 to enter the screening chamber 102 or the cleaning chamber 1021; and drives the second lead screw 303 via the second motor 3032, causing the second lead screw 303 to mesh with the second connecting seat 302 and, guided by the second sliding shaft 3031, control the second screening cylinder 3 to enter the screening chamber 102 or the cleaning chamber 1021. Through the designed composite cylindrical filter screen structure, it is convenient to switch between the first screening cylinder 2 or the second screening cylinder 3 entering the screening chamber 102 to achieve the screening operation, ensuring that the screening operation is effective and the process is orderly.

[0027] Example 2

[0028] The top of the inner cavity of the cleaning chamber 1021 is equipped with a high-pressure nozzle 4, and the bottom of the inner cavity of the cleaning chamber 1021 is equipped with a sewage discharge port 1022. The high-pressure nozzle 4 uses an external water source to perform high-pressure flushing on the first screening cylinder 2 or the second screening cylinder 3 entering the cleaning chamber 1021, thereby clearing the blockages in the filter screen holes of the first screening cylinder 2 and the second screening cylinder 3.

[0029] An air inlet 1023 is provided on one side of the cleaning chamber 1021. A fan 5 is provided at the outer port of the air inlet 1023. An electric heating mesh 501 is provided in the opening of the air inlet 1023. An exhaust window 1024 is provided on the side of the cleaning chamber 1021 away from the air inlet 1023. A dust filter is provided at the opening of the exhaust window 1024. Under the blowing of the fan 5, the air introduced is heated by the electric heating mesh 501 to heat and dry the first screening cylinder 2 or the second screening cylinder 3 in the cleaning chamber 1021, which facilitates quick switching.

[0030] The technical solutions in the above-described embodiments of this application have at least the following technical effects or advantages: The high-pressure nozzle 4 provided by this utility model uses an external water source to perform high-pressure rinsing on the first screening cylinder 2 or the second screening cylinder 3 entering the cleaning chamber 1021, clearing blockages in the filter screen holes of the first screening cylinder 2 and the second screening cylinder 3, thus achieving a self-cleaning effect. Under the blowing operation of the fan 5, the introduced air is heated by the electric heating mesh 501 to heat and dry the first screening cylinder 2 or the second screening cylinder 3 in the cleaning chamber 1021, facilitating quick and easy switching between uses.

[0031] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A vibrating screen for processing wood fiber flour, comprising a screen body (1), characterized in that, The filter screen body (1) is divided into a screening chamber (102) and a cleaning chamber (1021) by an inner partition (101) and a side partition (1011). A first screening screen cylinder (2) is slidably connected to the middle of the inner partition (101), and a second screening screen cylinder (3) is slidably fitted to the middle of the first screening screen cylinder (2). A first lead screw (203) and a first sliding shaft (2031) are connected to the side partition (1011). A first connecting seat (202) is provided on the outer wall of the inner end of the first screening screen cylinder (2) at the position corresponding to the first lead screw (203) and the first sliding shaft (2031). The first lead screw (203) and the first sliding shaft (2031) are respectively connected to the two first connecting seats (202) provided on the outer wall of the first screening screen cylinder (2). A first motor (2032) is provided on the outside of the second screening cylinder (3), and the output end of the first motor (2032) is connected to one end of the first lead screw (203). A baffle plate (304) is provided in the middle of the second screening cylinder (3) and at the position of the inner partition plate (101). A second lead screw (303) and a second sliding shaft (3031) are connected between the baffle plate (304) and the side partition plate (1011). A second connecting seat (302) is provided at the inner port of the second screening cylinder (3), and the second connecting seat (302) is connected to the second lead screw (303) and the second sliding shaft (3031). A second motor (3032) is provided on the outside of the side partition plate (1011), and the output shaft end of the second motor (3032) is connected to one end of the second lead screw (303).

2. The vibrating screen for processing wood fiber powder according to claim 1, characterized in that, The outer wall of the first screening cylinder (2) is provided with a plurality of first guide rails (201). The guide rails (201) are aligned with the axial direction of the first screening cylinder (2), and the first screening cylinder (2) is slidably connected to the inner partition (101) through the first guide rails (201).

3. A vibratory screen for processing wood fiber fines as defined in claim 1 wherein, The inner wall of the first screening cylinder (2) is provided with several second guide rails (2011), and the outer wall of the second screening cylinder (3) is provided with guide rail matching strips (301) corresponding to the positions of the second guide rails (2011). The guide rail matching strips (301) provided on the outer wall of the second screening cylinder (3) are slidably connected with the second guide rails (2011) provided on the inner wall of the first screening cylinder (2).

4. The vibrating screen for processing wood fiber powder according to claim 1, characterized in that, The outer ring shape of the barrier plate (304) matches the internal cavity of the second screening cylinder (3), and the barrier plate (304) slides with the inner wall of the second screening cylinder (3).

5. The vibrating screen for processing wood fiber powder according to claim 1, characterized in that, The cleaning chamber (1021) has a high-pressure nozzle (4) at the top of its inner cavity and a drain port (1022) at the bottom of its inner cavity.

6. The vibrating screen for processing wood fiber powder according to claim 5, characterized in that, The cleaning chamber (1021) has an air inlet (1023) on one side, a fan (5) at the outer port of the air inlet (1023), an electric heating mesh (501) in the opening of the air inlet (1023), an exhaust window (1024) on the side of the cleaning chamber (1021) away from the air inlet (1023), and a dust filter at the opening of the exhaust window (1024).

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