Paper-gas separator with self-cleaning function

Abstract

The invention is applicable to the technical field of paper-gas separators, and provides a paper-gas separator with a self-cleaning function, which comprises a shell, a feed port is connected to the upper position of one side edge of the shell, a filter port is formed in the other side of the shell, a mesh plate covers the filter port, the mesh plate is in the shape of a 1 / 4 ring, a top cover is arranged on the outer side of the shell, and the top cover is arranged on the outer side of the shell. One side of the top cover is connected with the screen plate, the other side of the top cover is provided with an air outlet, a material guide plate and a scraper part are jointly installed on two side plates of the shell, the feeding port faces the material guide plate, a motor is installed on the side, away from the shell, of each side plate, and an output shaft of the motor is coaxial with the axis of the screen plate; according to the device, the problem that materials are prone to being adhered to all structures in the separator is solved, the interior of the separator can be cleaned while the separator works through the self-cleaning structure, the separation efficiency is improved, and the separation speed is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of paper gas separators, and more particularly to a paper gas separator with a self-cleaning function. Background Art

[0002] In the sanitary products industry, it is often necessary to recycle scraps from production. The recycled paper scraps need to be crushed by a shredder fan first. The shredded paper scraps enter the paper-air separator through the connected pipe under the action of the airflow generated by the shredder fan. The paper-air separator can separate the shredded paper and the airflow. The shredded paper is piled up for recycling, and the airflow enters the dust collector for treatment and can be discharged.

[0003] At present, there are two common scrap separators on the market: cyclone separators and mesh frame separators:

[0004] The cyclone separator creates a cyclonic airflow, which causes the waste to be blown against the cylinder wall under the action of centrifugal force, thereby separating it from the gas. The gas is eventually discharged through the central exhaust duct. After the waste accumulates, it slides down into the silo under the action of gravity and is collected. However, the exhaust duct area is relatively small, which increases the airflow speed and makes it easier for some waste to be carried into the subsequent process. The collection rate is not high, and the waste is easily adhered to the cylinder wall, resulting in poor material discharge and unformed lumps.

[0005] The mesh frame separator can effectively separate materials by filtering through mesh plates. However, when waste adheres and accumulates on the mesh plates, it will clog the mesh plates, affecting the separation speed and waste collection rate. The mesh plates also need to be cleaned frequently, increasing the workload. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the object of the present invention is to provide a paper gas separator with high collection rate, fast separation speed and self-cleaning function.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A paper air separator with a self-cleaning function comprises a shell, a feed port is connected to the upper position of one side of the shell, a filter port is provided on the upper side of the shell opposite to the feed port, a mesh plate is covered on the filter port, the mesh plate is in the shape of a 1 / 4 ring, a top cover is provided on the outside of the shell, the top cover has two openings, one opening of the top cover is connected to the mesh plate, and the other opening of the top cover is an air outlet, the side walls of the shell perpendicular to the mesh plate are side plates, a guide plate and a scraper part are commonly installed on the two side plates, the feed port faces the guide plate, a motor is installed on the side of the side plate away from the shell, the output shaft of the motor is coaxial with the axis of the mesh plate, the output shaft of the motor is connected to the scraper part, the scraper part can scrape the mesh plate, and the bottom of the shell is the discharge port;

[0009] When the airflow carries the waste into the feed port and hits the guide plate, the gas will easily rise, while the waste will easily settle down under the action of its own weight, thus promoting paper-gas separation;

[0010] The airflow is finally filtered through the mesh plate to ensure the separation efficiency of gas and waste. Some waste is adhered to the mesh plate. When the scraper rotates, it can scrape the mesh plate to remove the waste adhered to the mesh plate and prevent the mesh holes from being blocked. This ensures the flow of gas and the separation speed. At the same time, it reduces the adhesion of waste inside the separator, improves the waste collection rate, and takes into account both speed and effect.

[0011] In one embodiment: the scraper part includes a rotating shaft, which is connected to the output shaft of the motor, and a plurality of fixed ribs are arranged radially on the rotating shaft, and the plurality of fixed ribs are arranged at corresponding positions on both sides of the rotating shaft, and the ends of the fixed ribs on both sides are commonly connected to a fixed plate, and a brush is installed on the fixed plate, and the brush can contact the mesh plate. The two groups of brushes can clean the inside of the mesh plate while the separator is working, thereby removing waste materials adhered to it.

[0012] In another embodiment, the scraper portion includes a rotating shaft connected to an output shaft of a motor, a plurality of fixing ribs are arranged radially on the rotating shaft, the fixing ribs are arranged at corresponding positions on both sides of the rotating shaft, and ends of the fixing ribs on both sides are commonly connected to a fixing plate, a brush and a scraper are respectively mounted on the two fixing plates, a collecting cover is provided on the fixing plate, and the two collecting covers are respectively covered on the brush and the scraper, and the opening direction of the collecting cover is toward the side away from the rotating shaft;

[0013] The brush and the scraper can be in contact with the mesh plate, and the scraper is configured to be shovel-shaped on the side away from the rotating shaft, and the shovel-shaped structure of the scraper can scrape off the material on the surface of the mesh plate;

[0014] The scraper can push the waste adhered to the stencil to accumulate on the scraper or detach from the stencil. Compared with the brush, the scraper has a more significant effect on removing the waste on the stencil. The scraper scrapes off most of the waste and then the brush sweeps it, which improves the cleaning effect.

[0015] At the same time, the outside of the scraper and the brush are covered with a collection cover, which can prevent the airflow from impacting the cleaning area, reduce dust during the cleaning process, reduce the need for secondary filtration, and thus increase the separation speed.

[0016] The invention is further configured as follows: a collecting cover cleaning member is provided at the bottom of the inner side of the shell, and the collecting cover cleaning member includes two rocking arms, the two rocking arms are rotatably mounted on the two side plates, the rocking arms are in a "√" shape, the corner in the middle of the rocking arm is the rotation center, the two sides of the rocking arm are respectively a limit rod and a connecting rod, an obtuse angle is formed between the limit rod and the connecting rod, the limit rod faces obliquely downward, the connecting rod is inclined upward, a limit block and a fixed block are fixed on the side plate, the limit rod is above the limit block and can abut against the limit block, the end of the connecting rod away from the rotation center is connected to a spring, the spring is fixed on the fixed block, the two connecting rods are commonly connected to a knocking piece 1, when the limit rod abuts against the limit block, the collection cover can collide with the knocking piece 1;

[0017] When the collecting hood is at the screen plate, it accommodates the cleaned waste that is stuck to the screen plate. During the downward rotation, most of the waste slides down to the inlet and outlet under the action of its own weight and centrifugal force, and a small part will adhere to the collecting hood. When the collecting hood rotates to the collecting hood cleaning part, it will collide with the knocking part, and the impact vibration will promote the waste to separate from the collecting hood, thereby cleaning the internal components of the separator and improving the efficiency of paper gas separation.

[0018] The present invention is further configured as follows: a brush cleaning member is provided in the housing, the brush cleaning member includes two transmission gear sets, the two transmission gear sets are respectively mounted on two side plates, the input end of the transmission gear set is connected to the rotating shaft, the output end of the transmission gear set is an output gear, the transmission ratio of the transmission gear set is 0.5, and a shift lever is commonly connected to the two output gears, and when the brush or scraper rotates to the output gear, the shift lever collides with the brush or scraper accordingly;

[0019] The scraper part rotates one circle, and the output gear rotates two circles, corresponding to the brushes or scrapers on both sides. When the brushes or scrapers rotate to the output gear, the lever is driven to the corresponding position and scrapes against the corresponding brushes or scrapers. By moving the brushes or scrapers, the waste materials adhered to them are promoted to fall off, thereby ensuring the cleanliness of the brushes and scrapers and ensuring their efficiency in cleaning the screen.

[0020] The present invention is further configured as follows: a material guide plate cleaning member is provided in the shell, the material guide plate cleaning member includes two levers, the middle portion of the lever is rotatably mounted on the corresponding side plate, the two ends of the lever are respectively a long side and a short side, the long side extends toward one side of the scraper portion, a counterweight is commonly connected to the two long sides, a limit line is connected to the long side, the other end of the limit line is fixed to the shell, a second knocking member is commonly connected to the two short sides, the scraper portion can push the counterweight, and the second knocking member can collide with the material guide plate;

[0021] During the rotation of the scraper part, it pushes the counterweight, thereby driving the second knocking piece to hit the guide plate, and promoting the separation of the waste adhered to the guide plate through vibration, thereby improving the waste collection rate.

[0022] The advantages of the present invention are:

[0023] 1. The screen is set in a 1 / 4 ring shape, and the scraper part is coaxially installed at the axis of the screen. The brush or scraper of the scraper part can scrape and clean the inner wall of the screen while the separator is working, avoiding blockage of the screen, thereby ensuring the separation speed and improving the waste collection rate;

[0024] 2. A brush cleaning part is provided. The scraper part is connected to a lever through a transmission gear set. The transmission ratio of the transmission gear set is 0.5. When the scraper part rotates one circle, the lever rotates two circles. That is, when the brush or scraper rotates to the corresponding position, the lever can contact it accordingly. The scraping of the lever reduces the waste residue on the brush and scraper, thereby ensuring the cleaning effect of the brush and scraper on the screen;

[0025] 3. When the brush or scraper cleans the screen, dust will be generated. The brush and scraper are equipped with a collection cover on the outer cover to prevent the dust from being pushed back onto the screen by the airflow, thereby increasing the separation speed. At the same time, a collection cover cleaning piece is provided at the bottom. When the collection cover moves into place and collides with the knocking piece, the vibration generated by the impact can promote the separation of waste materials attached to the collection cover;

[0026] 4. A guide plate cleaning piece is provided at the guide plate. When the scraper part rotates, it can hit the guide plate through the guide plate cleaning piece, thereby promoting the separation of waste materials adhered to the guide plate and improving the collection rate of waste materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 This is an embodiment of the present invention. Figure 1 The AA line cross-section shown;

[0029] Figure 3 This is a schematic structural diagram of the scraper portion of Example 1;

[0030] Figure 4 Schematic diagram of the housing structure of the present invention;

[0031] Figure 5 This is the second embodiment of the present invention. Figure 1 The AA line cross-section shown;

[0032] Figure 6 This is a schematic structural diagram of the scraper portion of Example 2;

[0033] Figure 7 for Figure 5 An enlarged view of part B is shown;

[0034] Figure 8 for Figure 5 An enlarged view of part C is shown;

[0035] Figure 9 Schematic diagram of the screen structure of the present invention;

[0036] Figure 10 for Figure 5 An enlarged view of portion D is shown;

[0037] In the figure: 1. Shell; 11. Feed inlet; 12. Filter port; 13. Top cover; 14. Air outlet; 15. Discharge port; 16. Side panel; 2. Screen; 3. Scraper part; 31. Rotating shaft; 32. Fixing rib; 33. Fixing plate; 34. Brush; 35. Collecting cover; 36. Scraper; 4. Guide plate; 5. Motor; 6. Collecting cover cleaning part; 61. Fixing block; 62. Limiting block; 63. Spring; 64. Rocker arm; 641. Limiting rod; 642. Connecting rod; 65. Knocking part 1; 7. Guide plate cleaning part; 71. Lever; 72. Knocking part 2; 73. Counterweight; 74. Limiting line; 8. Brush cleaning part; 81. Transmission gear set; 82. Output gear; 83. Lever. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] See also Figure 1-4 , the present invention provides the following technical solutions:

[0040] A paper air separator with a self-cleaning function comprises a shell 1, a feed port 11 is connected to the upper position of one side of the shell 1, a filter port 12 is provided on the upper side of the shell 1 opposite to the feed port 11, a mesh plate 2 is covered on the filter port 12, the mesh plate 2 is in the shape of a 1 / 4 ring, a top cover 13 is provided on the outside of the shell 1, the top cover 13 has two openings, one opening of the top cover 13 is connected to the mesh plate 2, the other opening of the top cover 13 is an air outlet 14, the air outlet 14 can be connected to an external dust removal device, the side walls of the shell 1 perpendicular to the mesh plate 2 are side plates 16, a guide plate 4 and a scraper part 3 are jointly installed on the two side plates 16, the feed port 11 faces the guide plate 4, and a motor 5 is installed on the side of the side plate 16 away from the shell 1, the output shaft of the motor 5 is coaxial with the axis of the mesh plate 2, the output shaft of the motor 5 is connected to the scraper part 3, the scraper part 3 can scrape the mesh plate 2, and the bottom of the shell 1 is a discharge port 15;

[0041] The waste-containing gas enters the housing 1 through the feed port 11 and first collides with the guide plate 4. After the airflow direction changes, the gas rises more easily, while the waste in it settles more easily under the action of its own weight, which promotes the separation of paper and gas.

[0042] Finally, the airflow containing a small amount of waste flows out through the mesh plate 2, which can filter the airflow and ensure the collection rate of the waste.

[0043] The scraper portion 3 includes a rotating shaft 31, which is connected to the output shaft of the motor 5. A number of fixed ribs 32 are arranged radially on the rotating shaft 31, and the number of fixed ribs 32 are arranged at corresponding positions on both sides of the rotating shaft 31. The ends of the fixed ribs 32 on both sides are commonly connected to a fixed plate 33, and a brush 34 is installed on the fixed plate 33. The brush 34 can contact the mesh plate 2. During the rotation of the rotating shaft 31, the brush 34 can brush the inner wall of the mesh plate 2 to reduce the adhesion of waste on the mesh plate 2 and ensure the airflow efficiency. That is, by self-cleaning the mesh plate 2, the separation speed is guaranteed while taking into account the improvement of the waste collection rate.

[0044] See Figure 1 as well as Figure 4-10 , the present invention provides the following embodiment 2:

[0045] The shell body 1 is provided with a feed port 11 at an upper position on one side of the shell body 1, a filter port 12 is provided on the upper side of the shell body 1 opposite to the feed port 11, and a mesh plate 2 is covered on the filter port 12, and the mesh plate 2 is in a 1 / 4 ring shape. A top cover 13 is provided on the outside of the shell body 1, and the top cover 13 has two openings. One opening of the top cover 13 is connected to the mesh plate 2, and the other opening of the top cover 13 is an air outlet 14. The side walls of the shell body 1 perpendicular to the mesh plate 2 are side panels 16, and a guide plate 4 and a scraper portion 3 are jointly installed on the two side panels 16. The feed port 11 faces the guide plate 4, and a motor 5 is installed on the side of the side panel 16 away from the shell body 1. The output shaft of the motor 5 is coaxial with the axis of the mesh plate 2, and the output shaft of the motor 5 is connected to the scraper portion 3. The scraper portion 3 can scrape the mesh plate 2, and the bottom of the shell body 1 is a discharge port 15.

[0046] The scraper portion 3 includes a rotating shaft 31, which is connected to the output shaft of the motor 5. A plurality of fixing ribs 32 are arranged radially on the rotating shaft 31. The plurality of fixing ribs 32 are located at corresponding positions on both sides of the rotating shaft 31. The ends of the fixing ribs 32 on both sides are connected to a fixing plate 33. A brush 34 and a scraper 36 are respectively mounted on the two fixing plates 33. A collection cover 35 is provided on the fixing plate 33. The two collection covers 35 are respectively covered on the brush 34 and the scraper 36. The opening direction of the collection cover 35 is facing away from the rotating shaft 31.

[0047] The collecting hood 35 can block the airflow and prevent the airflow from impacting the clean area of ​​the screen plate 2, thereby preventing the scraped waste from being driven by the airflow and re-adhering to the screen plate 2, ensuring the cleaning effect of the screen plate 2, avoiding secondary filtration, and improving the paper-gas separation speed.

[0048] The brush 34 and the scraper 36 can be in contact with the mesh plate 2. The side of the scraper 36 facing away from the rotating shaft 31 is set to be shovel-shaped. The shovel-shaped structure of the scraper 36 can scrape off the material on the surface of the mesh plate 2. The scraper 36 pushes the adhered material to separate from the mesh plate 2 through the scraping. Compared with the brush 34 and the scraper 36, the cleaning effect of larger waste materials is better. When the scraper 36 cooperates with the brush 34, the cleaning effect of the scraper part 3 on the mesh plate 2 is improved.

[0049] Furthermore, a collecting cover cleaning member 6 is provided at the bottom of the inner side of the shell 1 , and the collecting cover cleaning member 6 can clean the collecting cover 35 and reduce the adhesion of waste materials on the internal structure of the separator.

[0050] The collecting cover cleaning member 6 includes two rocker arms 64, which are rotatably mounted on the two side plates 16 respectively. The rocker arms 64 are in a "√" shape, and the corner in the middle of the rocker arms 64 is the center of rotation. The two sides of the rocker arms 64 are respectively a limit rod 641 and a connecting rod 642, and an obtuse angle is formed between the limit rod 641 and the connecting rod 642. The limit rod 641 faces obliquely downward, and the connecting rod 642 is inclined upward. A limit block 62 and a fixed block 61 are fixed on the side plate 16. The limit rod 641 is above the limit block 62 and can abut against the limit block 62. The end of the connecting rod 642 away from the center of rotation is connected to a spring 63, which is fixed to the fixed block 61. The two connecting rods 642 are commonly connected to a knocking member 65;

[0051] Under normal circumstances, the spring 63 pushes the connecting rod 642 to the left until the limit rod 641 abuts against the limit block 62. At this time, it is in a balanced state, that is, the position of the knocking piece 65 is fixed. When the collecting cover 35 rotates to the knocking piece 65, the collecting cover 35 collides with the knocking piece 65 and pushes the knocking piece 65 to overcome the displacement of the spring 63, causing the collecting cover 35 to vibrate to a certain extent, thereby promoting the separation of the waste attached to the collecting cover 35 through vibration.

[0052] Furthermore, a brush cleaning member 8 is provided in the shell 1, and the brush cleaning member 8 includes two transmission gear sets 81, which are respectively mounted on the two side plates 16, and the input end of the transmission gear set 81 is connected to the rotating shaft 31, and the output end of the transmission gear set 81 is the output gear 82. The transmission ratio of the transmission gear set 81 is 0.5, that is, when the scraper part 3 rotates one circle, the output gear 82 rotates two circles. The two output gears 82 are commonly connected with a shift rod 83. When the brush 34 or the scraper 36 rotates to the output gear 82, the shift rod 83 rotates to the top and scrapes against the brush 34 or the scraper 36. By shifting the brush 34 and the scraper 36, the waste attached thereto is promoted to be detached, so as to ensure the cleanliness of the brush 34 and the scraper 36, so that it has a better cleaning effect when cleaning the screen 2.

[0053] A material guide plate cleaning member 7 is provided in the shell 1. The material guide plate cleaning member 7 includes two levers 71. The middle part of the lever 71 is rotatably mounted on the corresponding side plate 16. The two ends of the lever 71 are respectively a long side and a short side. The long side extends to one side of the scraper portion 3. A counterweight 73 is commonly connected to the two long sides. A limit line 74 is connected to the long side. The other end of the limit line 74 is fixed on the shell 1. A knocking member 2 72 is commonly connected to the two short sides. Under normal circumstances, the lever 71 maintains balance under the gravity of the counterweights 73 at both ends, the knocking member 2 72 and the traction force of the limit line 74. When the scraper portion 3 moves to this time, it will push the counterweight 73, thereby driving the knocking member 2 72 to move. The knocking member 2 72 collides with the material guide plate 4, and promotes the separation of the adhesive waste on the material guide plate 4 through vibration, thereby realizing self-cleaning and improving the waste collection rate.

[0054] Specifically, the mesh plate 2 is set in a 1 / 4 ring shape, and the scraper part 3 is coaxially installed at the axis of the mesh plate 2. The brush 34 or scraper 36 of the scraper part 3 can scrape and clean the inner wall of the mesh plate 2 while the separator is working, thereby preventing the mesh plate 2 from being blocked, thereby ensuring the separation speed and improving the waste collection rate.

[0055] A brush cleaning member 8 is provided. The scraper portion 3 is connected to a lever 83 via a transmission gear set 81. The transmission ratio of the transmission gear set 81 is 0.5. When the scraper portion 3 rotates one circle, the lever 83 rotates two circles, that is, when the brush 34 or the scraper 36 rotates to the corresponding position, the lever 83 can contact it accordingly. The scraping of the lever 83 reduces the waste residue on the brush 34 and the scraper 36, thereby ensuring the cleaning effect of the brush 34 and the scraper 36 on the screen 2;

[0056] When the brush 34 or the scraper 36 cleans the screen 2, dust will be generated. The outer cover of the brush 34 and the scraper 36 is provided with a collecting cover 35, which can prevent the dust from being pushed back onto the screen 2 by the air flow, thereby increasing the separation speed. At the same time, a collecting cover cleaning member 6 is provided at the bottom. When the collecting cover 35 moves into place, it collides with the knocking member 65. The vibration generated by the collision can promote the separation of waste materials attached to the collecting cover 35.

[0057] The guide plate 4 is provided with a guide plate cleaning member 7. When the scraper portion 3 rotates, the guide plate cleaning member 7 can hit the guide plate 4, thereby promoting the separation of waste materials adhered to the guide plate 4 and improving the collection rate of waste materials.

[0058] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0059] 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, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

Claims

1. A paper air separator with a self-cleaning function, comprising a housing (1), characterized in that: A feed port (11) is connected to the upper position of one side of the shell (1), a filter port (12) is provided on the upper side of the shell (1) opposite to the feed port (11), a mesh plate (2) is covered on the filter port (12), and the mesh plate (2) is in the shape of a quarter ring. A top cover (13) is provided on the outside of the shell (1), and the top cover (13) has two openings, one opening of the top cover (13) is connected to the mesh plate (2), and the other opening of the top cover (13) is an air outlet (14). The shell (1) The two side walls perpendicular to the mesh plate (2) are side plates (16), and a guide plate (4) and a scraper portion (3) are mounted on the two side plates (16). The feed port (11) faces the guide plate (4), and a motor (5) is mounted on the side of the side plate (16) facing away from the housing (1). The output shaft of the motor (5) is coaxial with the axis of the mesh plate (2), and the output shaft of the motor (5) is connected to the scraper portion (3). The scraper portion (3) can scrape the mesh plate (2), and the bottom of the housing (1) is the discharge port (15).

2. The paper air separator with self-cleaning function according to claim 1, characterized in that: The scraper portion (3) comprises a rotating shaft (31), the rotating shaft (31) being connected to the output shaft of the motor (5), a plurality of fixing ribs (32) being arranged radially on the rotating shaft (31), the plurality of fixing ribs (32) being arranged at corresponding positions on both sides of the rotating shaft (31), the ends of the fixing ribs (32) on both sides being commonly connected to a fixing plate (33), a brush (34) being mounted on the fixing plate (33), and the brush (34) being capable of contacting the screen plate (2).

3. The paper air separator with self-cleaning function according to claim 1, characterized in that: The scraper portion (3) includes a rotating shaft (31), which is connected to the output shaft of the motor (5). A plurality of fixing ribs (32) are arranged radially on the rotating shaft (31). The plurality of fixing ribs (32) are arranged at corresponding positions on both sides of the rotating shaft (31). The ends of the fixing ribs (32) on both sides are commonly connected to a fixing plate (33). A brush (34) and a scraper (36) are respectively installed on the two fixing plates (33). A collecting cover (35) is provided on the fixing plate (33). The two collecting covers (35) are respectively covered on the brush (34) and the scraper (36). The opening direction of the collecting cover (35) is toward the side away from the rotating shaft (31).

4. The paper air separator with self-cleaning function according to claim 3, characterized in that: The brush (34) and the scraper (36) can be in contact with the mesh plate (2); the side of the scraper (36) facing away from the rotating shaft (31) is configured to be shovel-shaped; the shovel-shaped structure of the scraper (36) can scrape off materials on the surface of the mesh plate (2).

5. The paper air separator with self-cleaning function according to claim 4, characterized in that: A collecting hood cleaning member (6) is provided at the bottom of the inner side of the shell (1). The collecting hood cleaning member (6) includes two swing rods (64). The two swing rods (64) are rotatably mounted on two side plates (16) respectively. The swing rods (64) are in a "√" shape. The corner in the middle of the swing rod (64) is the center of rotation. The two sides of the swing rod (64) are respectively a limiting rod (641) and a connecting rod (642). An obtuse angle is formed between the limiting rod (641) and the connecting rod (642). The limiting rod (641) faces obliquely downward. The connecting rod (642) 42) is tilted upward, a limiting block (62) and a fixed block (61) are fixed on the side plate (16), the limiting rod (641) is above the limiting block (62) and can abut against the limiting block (62), one end of the connecting rod (642) away from the rotation center is connected to a spring (63), the spring (63) is fixed on the fixed block (61), and a knocking piece (65) is commonly connected to the two connecting rods (642), and when the limiting rod (641) abuts against the limiting block (62), the collecting cover (35) can collide with the knocking piece (65).

6. A paper air separator with self-cleaning function according to claim 2 or 3, characterized in that: A brush cleaning member (8) is provided in the housing (1), and the brush cleaning member (8) comprises two transmission gear sets (81). The two transmission gear sets (81) are respectively mounted on two side plates (16). The input end of the transmission gear set (81) is connected to the rotating shaft (31), and the output end of the transmission gear set (81) is an output gear (82). The transmission ratio of the transmission gear set (81) is 0.

5. A shifting rod (83) is commonly connected to the two output gears (82). When the brush (34) or the scraper (36) rotates to the output gear (82), the shifting rod (83) collides with the brush (34) or the scraper (36) accordingly.

7. The paper air separator with self-cleaning function according to claim 1, characterized in that: A guide plate cleaning member (7) is provided in the housing (1), and the guide plate cleaning member (7) comprises two levers (71), the middle portion of the lever (71) being rotatably mounted on the corresponding side plate (16), the two ends of the lever (71) being respectively a long side and a short side, the long side extending toward one side of the scraper portion (3), a counterweight (73) being commonly connected to the two long sides, a limit line (74) being connected to the long side, the other end of the limit line (74) being fixed to the housing (1), and a second knocking member (72) being commonly connected to the two short sides, the scraper portion (3) being capable of pushing the counterweight (73), and the second knocking member (72) being capable of colliding with the guide plate (4).

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