Horizontal airflow screening machine

Abstract

The utility model relates to the technical field of airflow screening machines, in particular to a horizontal airflow screening machine which comprises an outer shell, a material conveying barrel and an annular brush, the bottom of the outer shell is fixedly connected with two first supporting plates, the left side of the outer shell is fixedly connected with a first sealing plate, and the right side of the outer shell is fixedly connected with a second sealing plate. Through the arrangement of the outer shell, the first sealing plate, the second sealing plate, the screening barrel, a scraping plate, a threaded rod, a rotating rod, an annular brush and a third motor, the inner side of the screening barrel can be cleaned in real time through the scraping plate additionally arranged on the outer side of a wind wheel blade; and the outer side of the screening barrel is cleaned and screening holes of the screening barrel are dredged regularly through the annular brush which can be driven by the threaded rod and move left and right along the rotating rod, so that the screening barrel of the device is not prone to being blocked, automatic cleaning and dredging can be carried out without shutdown or equipment disassembly, and the screening efficiency is improved. The cleaning and dredging process is time-consuming and labor-consuming.

Description

Technical Field

[0001] The utility model relates to the technical field of airflow screening machines, in particular to a horizontal airflow screening machine. Background Art

[0002] Horizontal airflow screening machine is a high-precision screening equipment for fine powder screening. It is widely used in metallurgy, mining, pharmaceuticals, food, chemicals, metal powder and non-metal industries. After passing through the screw conveyor, the material is mixed with the airflow and atomized into the mesh cylinder. The wind wheel blades in the mesh cylinder make the material simultaneously subjected to centrifugal force and cyclone propulsion force, and ejected out of the screen. Small particles are discharged through the fine material outlet, and large particles are intercepted and discharged through the coarse material outlet.

[0003] The screening accuracy of the horizontal airflow screening machine is relatively high, and the sieve holes of the mesh drum are relatively small. When some existing horizontal airflow screening machines are used to screen some sticky powders, the sieve holes of the mesh drum are easily blocked. Once the mesh holes are blocked, the equipment needs to be shut down for disassembly and cleaning, and the cleaning process is relatively time-consuming and laborious. Therefore, a horizontal airflow screening machine is proposed to address the above problems. Utility Model Content

[0004] The utility model aims to provide a horizontal airflow screening machine to solve the problem that when some existing horizontal airflow screening machines are used to screen some sticky powders, the sieve holes of the mesh cylinder are easily blocked. Once the mesh holes are blocked, the equipment needs to be stopped for disassembly and cleaning, and the cleaning process is relatively time-consuming and laborious.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A horizontal airflow screening machine comprises an outer shell, a material conveying cylinder and an annular brush, wherein two first supporting plates are fixedly connected to the bottom of the outer shell, a first sealing plate is fixedly connected to the left side of the outer shell, a second sealing plate is fixedly connected to the right side of the outer shell, a fine material collecting trough is fixedly connected to the bottom opening of the outer shell, a screening cylinder is provided between the first sealing plate and the second sealing plate, a first rotating shaft is rotatably connected to the middle position of the first sealing plate and the second sealing plate, three wind wheel blades are fixedly connected to the outer side of the first rotating shaft, the relatively outer sides of the wind wheel blades are fixedly connected to scraping plates, the relatively outer sides of the scraping plates are in contact with the screening cylinder, a first motor is fixedly connected to the right side of the second sealing plate, the motor spindle of the first motor is fixedly connected to the first rotating shaft, the first sealing plate A feed cylinder is fixedly connected to the upper left half of the plate, a second support plate is fixedly connected to the bottom of the feed cylinder, a feed hopper is fixedly connected to the top opening of the feed cylinder, a second rotating shaft is rotatably connected to the inside of the feed cylinder, a spiral blade is fixedly connected to the outer side of the second rotating shaft, a second motor is fixedly connected to the left side of the feed cylinder, a motor spindle of the second motor and the second rotating shaft are fixedly connected, a threaded rod is rotatably connected to the upper half of the first sealing plate and the second sealing plate, two rotating rods are rotatably connected to the lower half of the first sealing plate and the second sealing plate, an annular brush is spirally connected to the threaded rod, the annular brush and the rotating rod are slidably connected, a third motor is fixedly connected to the upper left half of the first sealing plate, and the motor spindle of the third motor and the threaded rod are fixedly connected.

[0007] Preferably, connecting flanges are provided on the left and right sides of the outer shell, a discharge port is provided on the bottom of the outer shell, the diameters of the first sealing plate and the second sealing plate are equal to the diameter of the connecting flange of the outer shell, circular insertion grooves are provided on the relative inner sides of the first sealing plate and the second sealing plate, the left end of the screening cylinder is engaged with the first sealing plate, and the right end of the screening cylinder is engaged with the second sealing plate, and a rotating connecting groove is provided in the middle position of the first sealing plate and the second sealing plate.

[0008] Preferably, a waste outlet is provided on the lower half of the first sealing plate, a switch valve is provided on the left side of the waste outlet of the first sealing plate, a feed port is provided on the upper half of the first sealing plate, an opening is provided on the right side of the feed barrel, the feed port of the first sealing plate and the opening on the right side of the feed barrel are of the same size, a rotating connecting groove is provided on the left side of the feed barrel, a feed groove is provided on the top of the feed barrel, and the outer side of the spiral blade is in contact with the feed barrel.

[0009] Preferably, the first sealing plate and the second sealing plate are each provided with three rotating slots, the outer side of the threaded rod is provided with a threaded protrusion, the rotating rods are all cylindrical rods, the upper half of the annular brush is provided with a threaded slot, and the lower half of the annular brush is provided with two sliding slots.

[0010] Preferably, the wind wheel blades and scraper plates are both located inside the screening cylinder, the scraper plates are both curved rubber plates, the annular brush is located outside the screening cylinder, the annular brush is a circular ring structure, the annular brush is composed of a shell and a brush, and the brush inside the annular brush is in contact with the screening cylinder.

[0011] Preferably, the first motor, the second motor and the third motor are all composed of a motor body and a support plate, the bottom of the motor bodies of the first motor and the second motor are fixedly connected to the support plate, and the front and rear sides of the motor body of the third motor are fixedly connected to the support plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the utility model, through the provision of an outer shell, a first sealing plate, a second sealing plate, a screening drum, a scraper plate, a threaded rod, a rotating rod, an annular brush and a third motor, the device can clean the inner side of the screening drum in real time through the scraper plate added on the outer side of the wind wheel blade, and regularly clean the outer side of the screening drum and dredge the sieve holes of the screening drum through the annular brush that can be driven by the threaded rod and move left and right along the rotating rod. Therefore, the screening drum of the device is not easy to be blocked, and can be automatically cleaned and dredged without stopping the machine or disassembling the equipment, and the cleaning and dredging process is relatively time-consuming and labor-intensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a cross-sectional view of the screening component structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the first sealing plate of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the second sealing plate of the utility model;

[0018] Figure 5 This is a schematic diagram of the installation structure of the scraper plate of the utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the screening cylinder of the utility model;

[0020] Figure 7 This is a schematic diagram of the structure of the feed assembly of the utility model;

[0021] Figure 8 This is a schematic diagram of the structure of the cleaning component of the utility model.

[0022] In the figure: 1. outer shell; 2. first support plate; 3. first sealing plate; 4. second sealing plate; 5. fine material collecting trough; 6. screening cylinder; 7. first rotating shaft; 8. wind wheel blades; 9. scraper plate; 10. first motor; 11. feed cylinder; 12. second support plate; 13. feed hopper; 14. second rotating shaft; 15. spiral blades; 16. second motor; 17. threaded rod; 18. rotating rod; 19. annular brush; 20. third motor. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0025] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0026] See also Figure 1-8 , the utility model provides a technical solution:

[0027] A horizontal airflow screening machine comprises an outer shell 1, a material conveying cylinder 11 and an annular brush 19, two first support plates 2 are fixedly connected to the bottom of the outer shell 1, a first sealing plate 3 is fixedly connected to the left side of the outer shell 1, a second sealing plate 4 is fixedly connected to the right side of the outer shell 1, a fine material collecting trough 5 is fixedly connected to the bottom opening of the outer shell 1, a screening cylinder 6 is provided between the first sealing plate 3 and the second sealing plate 4, a first rotating shaft 7 is rotatably connected to the middle position of the first sealing plate 3 and the second sealing plate 4, three wind wheel blades 8 are fixedly connected to the outside of the first rotating shaft 7, and the relatively outer sides of the wind wheel blades 8 are fixedly connected to scraper plates 9, and the relatively outer sides of the scraper plates 9 are in contact with the screening cylinder 6, a first motor 10 is fixedly connected to the right side of the second sealing plate 4, the motor main shaft of the first motor 10 is fixedly connected to the first rotating shaft 7, and the upper left half of the first sealing plate 3 A feed cylinder 11 is fixedly connected, a second support plate 12 is fixedly connected to the bottom of the feed cylinder 11, a feed hopper 13 is fixedly connected to the top opening of the feed cylinder 11, a second rotating shaft 14 is rotatably connected to the inside of the feed cylinder 11, a spiral blade 15 is fixedly connected to the outer side of the second rotating shaft 14, a second motor 16 is fixedly connected to the left side of the feed cylinder 11, a motor spindle of the second motor 16 is fixedly connected to the second rotating shaft 14, a threaded rod 17 is rotatably connected to the upper half of the first sealing plate 3 and the second sealing plate 4, two rotating rods 18 are rotatably connected to the lower half of the first sealing plate 3 and the second sealing plate 4, an annular brush 19 is spirally connected to the threaded rod 17, the annular brush 19 and the rotating rod 18 are slidably connected, a third motor 20 is fixedly connected to the upper left half of the first sealing plate 3, and a motor spindle of the third motor 20 is fixedly connected to the threaded rod 17.

[0028] The left and right sides of the outer shell 1 are provided with connecting flanges, the bottom of the outer shell 1 is provided with a discharge port, the diameters of the first sealing plate 3 and the second sealing plate 4 are equal to the diameters of the connecting flanges of the outer shell 1, the first sealing plate 3 and the second sealing plate 4 are provided with circular ring insertion grooves on the opposite inner sides, the left end of the screening cylinder 6 is engaged with the first sealing plate 3, the right end of the screening cylinder 6 is engaged with the second sealing plate 4, and the middle positions of the first sealing plate 3 and the second sealing plate 4 are provided with rotating connecting grooves, and the left and right sides of the outer shell 1 can be sealed by the first sealing plate 3 and the second sealing plate 4 , and fix the screening drum 6 inside the outer shell 1; a waste outlet is provided at the lower half of the first sealing plate 3, a switch valve is provided at the left side of the waste outlet of the first sealing plate 3, a feed port is provided at the upper half of the first sealing plate 3, an opening is provided on the right side of the feeding drum 11, the feed port of the first sealing plate 3 and the opening on the right side of the feeding drum 11 are the same size, a rotating connecting groove is provided on the left side of the feeding drum 11, a feed groove is provided on the top of the feeding drum 11, the outer side of the spiral blade 15 is fitted with the feeding drum 11, and the rotation speed of the spiral blade 15 can be controlled by the second motor 16, thereby Control the feeding speed; the first sealing plate 3 and the second sealing plate 4 are each provided with three rotating slots, the outer side of the threaded rod 17 is provided with a threaded protrusion, the rotating rod 18 is a cylindrical rod, the upper part of the annular brush 19 is provided with a threaded slot, and the lower part of the annular brush 19 is provided with two sliding slots. The annular brush 19 can be stably moved left and right through the threaded rod 17 and the rotating rod 18; the wind wheel blades 8 and the scraper plate 9 are both located inside the screening cylinder 6, and the scraper plate 9 is a rubber plate with an arc, and the annular brush 19 is located outside the screening cylinder 6. The brush 19 is a circular ring structure, and the annular brush 19 is composed of a shell and a brush. The brush inside the annular brush 19 is in contact with the screening drum 6, and the screening drum 6 can be unblocked and cleaned by the annular brush 19; the first motor 10, the second motor 16 and the third motor 20 are all composed of a motor body and a support plate, and the bottom of the motor body of the first motor 10 and the second motor 16 are fixedly connected to the support plate, and the front and rear sides of the motor body of the third motor 20 are fixedly connected to the support plate, and the third motor 20 can provide power for the movement of the annular brush 19.

[0029] Workflow: Turn on the power before use. The first motor 10, the second motor 16 and the third motor 20 of the device are all electrical instruments. The device is equipped with an external controller. Manual operation of the external controller can adjust the operating status of the first motor 10, the second motor 16 and the third motor 20. The above are all prior arts. The device is supported by the first support plate 2 and the second support plate 12. The first sealing plate 3 and the second sealing plate 4 of the device can be disassembled. When using the device, first adjust the first motor 10 and the second motor 16 to start through the external controller, put the material into the feed hopper 13, and drive the first rotating shaft 7 to rotate through the first motor 10, thereby driving the wind wheel blades 8 and the scraper plate 9 to rotate. Centrifugal force can be generated through the wind wheel blades 8. The scraper plate 9 can be used to scrape and clean the inner side of the screening drum 6 to prevent the material from sticking to the inner wall of the screening drum 6 and causing blockage. The second motor 16 can drive the second rotating shaft 14 to rotate, and then drive the spiral blade 15 to rotate. The spiral blade 15 can drive the material put into the feeding drum 11 from the feed hopper 13 to move right, so that the material enters the inner side of the screening drum 6. The first sealing plate 3 and the second sealing plate 4 can clamp and fix the screening drum 6, and seal the left and right ends of the screening drum 6. The centrifugal force generated by the wind wheel blades 8 causes the material to rotate in the screening drum 6, and is quickly screened through the screening drum 6. Small particles pass through the screening drum 6 and enter the space between the outer shell 1 and the screening drum 6, and then fall into the fine material collecting trough 5 from the bottom opening of the outer shell 1, and enter When the device is discharged, large particles and impurities are retained inside the screening drum 6. After a period of time, large particles and impurities accumulate inside the screening drum 6, so the feeding can be stopped, and the switch valve of the first sealing plate 3 is manually opened to discharge the large particles and impurities from the left end of the screening drum 6. In addition, the staff regularly adjusts the start of the third motor 20 through the external controller, and drives the threaded rod 17 to rotate through the third motor 20. Since the annular brush 19 is restricted by the two rotating rods 18 and cannot rotate, the annular brush 19 is driven by the threaded rod 17 to move to the left, and the annular brush 19 slides left relative to the rotating rod 18. The outer surface of the screening drum 6 can be cleaned by the annular brush 19, and the bristles of the annular brush 19 can dredge the sieve holes of the screening drum 6. After the annular brush 19 moves from the rightmost end of the threaded rod 17 to the leftmost end, the third motor 20 automatically reverses to make the annular brush 19 move in the opposite direction, and the annular brush 19 returns to the rightmost end of the threaded rod 17 again, and the third motor 20 automatically stops, thereby completing the dredging and cleaning of the screening drum 6 once; the device can clean the inner side of the screening drum 6 in real time through the scraper plate 9 added to the outer side of the wind wheel blade 8, and regularly cleans the outer side of the screening drum 6 and dredges the sieve holes of the screening drum 6 through the annular brush 19 that can be driven by the threaded rod 17 and moves left and right along the rotating rod 18. Therefore, the screening drum 6 of the device is not easy to be blocked, and can be automatically cleaned and dredged without stopping the machine or disassembling the equipment, and the cleaning and dredging process is relatively time-consuming and labor-intensive.

[0030] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0031] Although 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.

Claims

1. A horizontal airflow screening machine, comprising an outer shell (1), a feed cylinder (11) and an annular brush (19), characterized in that: Two first support plates (2) are fixedly connected to the bottom of the outer shell (1); a first sealing plate (3) is fixedly connected to the left side of the outer shell (1); a second sealing plate (4) is fixedly connected to the right side of the outer shell (1); a fine material collecting trough (5) is fixedly connected to the bottom opening of the outer shell (1); a screening drum (6) is provided between the first sealing plate (3) and the second sealing plate (4); a first rotating shaft (7) is rotatably connected to the middle position of the first sealing plate (3) and the second sealing plate (4); three wind wheel blades (8) are fixedly connected to the outer side of the first rotating shaft (7); scraping plates (9) are fixedly connected to the relative outer sides of the wind wheel blades (8); the relative outer sides of the scraping plates (9) are in contact with the screening drum (6); a first motor (10) is fixedly connected to the right side of the second sealing plate (4); the motor main shaft of the first motor (10) is fixedly connected to the first rotating shaft (7); a material conveying drum (11) is fixedly connected to the upper left half of the first sealing plate (3); the material conveying drum (11) is fixedly connected to the upper left half of the first sealing plate (3); The bottom of the cylinder (11) is fixedly connected to a second support plate (12), the top opening of the feeding cylinder (11) is fixedly connected to a feed hopper (13), the interior of the feeding cylinder (11) is rotatably connected to a second rotating shaft (14), the outer side of the second rotating shaft (14) is fixedly connected to a spiral blade (15), the left side of the feeding cylinder (11) is fixedly connected to a second motor (16), the motor main shaft of the second motor (16) is fixedly connected to the second rotating shaft (14), and the first sealing plate (3 ) and the upper half of the second sealing plate (4) are rotatably connected to a threaded rod (17); the lower half of the first sealing plate (3) and the second sealing plate (4) are rotatably connected to two rotating rods (18); the threaded rod (17) is spirally connected to an annular brush (19); the annular brush (19) and the rotating rod (18) are slidably connected; the left upper half of the first sealing plate (3) is fixedly connected to a third motor (20); the motor main shaft of the third motor (20) is fixedly connected to the threaded rod (17).

2. A horizontal airflow screening machine according to claim 1, characterized in that: The outer shell (1) is provided with connecting flanges on both left and right sides, the outer shell (1) is provided with a discharge port at the bottom, the diameters of the first sealing plate (3) and the second sealing plate (4) are equal to the diameter of the connecting flange of the outer shell (1), the first sealing plate (3) and the second sealing plate (4) are provided with circular ring insertion grooves on the opposite inner sides, the left end of the screening cylinder (6) is engaged with the first sealing plate (3), the right end of the screening cylinder (6) is engaged with the second sealing plate (4), and the middle positions of the first sealing plate (3) and the second sealing plate (4) are provided with rotating connecting grooves.

3. A horizontal airflow screening machine according to claim 1, characterized in that: The lower half of the first sealing plate (3) is provided with a waste outlet, a switch valve is provided on the left side of the waste outlet of the first sealing plate (3), the upper half of the first sealing plate (3) is provided with a feed port, the right side of the feed barrel (11) is provided with an opening, the feed port of the first sealing plate (3) and the right side opening of the feed barrel (11) are of the same size, the left side of the feed barrel (11) is provided with a rotation connection groove, the top of the feed barrel (11) is provided with a feed groove, and the outer side of the spiral blade (15) is in contact with the feed barrel (11).

4. A horizontal airflow screening machine according to claim 1, characterized in that: The first sealing plate (3) and the second sealing plate (4) are each provided with three rotating slots, the outer side of the threaded rod (17) is provided with a threaded protrusion, the rotating rod (18) is a cylindrical rod, the upper part of the annular brush (19) is provided with a threaded slot, and the lower part of the annular brush (19) is provided with two sliding slots.

5. A horizontal airflow screening machine according to claim 1, characterized in that: The wind wheel blades (8) and the scraper plates (9) are both located inside the screening cylinder (6); the scraper plates (9) are all rubber plates with an arc; the annular brush (19) is located outside the screening cylinder (6); the annular brush (19) is a circular ring structure; the annular brush (19) is composed of a shell and a brush; the brush inside the annular brush (19) is in contact with the screening cylinder (6).

6. A horizontal airflow screening machine according to claim 1, characterized in that: The first motor (10), the second motor (16) and the third motor (20) are all composed of a motor body and a support plate; the bottom of the motor body of the first motor (10) and the second motor (16) are fixedly connected to the support plate, and the front and rear sides of the motor body of the third motor (20) are fixedly connected to the support plate.

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