Corn seed air-screening cleaning device

Abstract

The utility model relates to a screening device, and provides a corn seed air screening and cleaning device which comprises a screening device, an air supply device connected with the screening device, a material receiving device arranged below the screening device and a residue collecting device arranged at the end, away from the air supply device, of the screening device. The residue collecting device comprises a long-strip-shaped first cloth bag connected with an air outlet of the screening device, a columnar second cloth bag connected with the lower side of the end, away from the screening device, of the first cloth bag, and an air outlet hole formed in the end, away from the screening device, of the first cloth bag. According to the corn seed air screening and cleaning device, light impurities generated in the air screening process can be efficiently collected.

Description

Technical Field

[0001] The utility model relates to the technical field of screening devices, and more particularly to a pneumatic screening and cleaning device for corn seeds. Background Art

[0002] After corn seeds go through many processes such as drying, before they are packaged or stored, the impurities in the corn seeds need to be removed. The impurity removal mainly includes removing lightweight impurities such as empty shells, leaves, and coatings, as well as small particle and high-density impurities such as stones. Common impurity removal methods include filtering with a filter sieve and pneumatic screening. For large-grained seeds like corn seeds, pneumatic screening is particularly suitable.

[0003] Pneumatic screening is to throw the corn seeds into the air and then use fast-flowing air to blow the corn seeds. Among them, low-density impurities will be blown far away, while high-density impurities will be blown the nearest, and the corn seeds themselves are in between. The operation of pneumatic screening is very simple, the cost is very low, and the effect is also good. However, the problem is that it takes up a lot of space, requires a large amount of space for air flow, and the pneumatic screening of corn seeds is a continuous process and usually needs to run continuously for a long time. Therefore, a large amount of impurity turbulence will be generated in the pneumatic screening workshop, which will not only affect the physical health of workers, but also require a lot of time to clean up after the pneumatic screening is over. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a pneumatic screening and cleaning device for corn seeds, which can efficiently collect the light impurities generated during the pneumatic screening process.

[0005] The embodiments of the utility model are realized through the following technical solutions: The pneumatic screening and cleaning device for corn seeds of the utility model includes a screening device, a air supply device connected to the screening device, a material receiving device arranged below the screening device, and a slag collection device arranged at one end of the screening device far from the air supply device; the slag collection device includes a long-strip-shaped first cloth bag connected to the air outlet of the screening device, a columnar second cloth bag connected to the lower side of the end of the first cloth bag far from the screening device, and an air outlet hole opened at the end of the first cloth bag far from the screening device.

[0006] Further, a slag discharge port is opened at the lower end of the second cloth bag, and the lower end of the second cloth bag is tied up by a connecting rope.

[0007] Further, the slag collection device further includes a pressing device sleeved on the first cloth bag for pressing the first cloth bag, and the pressing device is arranged close to the second cloth bag.

[0008] Furthermore, the extrusion device includes a bracket disposed below the first cloth bag, a pair of motors disposed on the bracket and on both sides of the cloth bag, a screw rod vertically disposed and connected to the motors, a first clamping plate connected to the bracket and disposed below the first cloth bag, and a second clamping plate threadedly connected to the screw rod and disposed above the first cloth bag.

[0009] Furthermore, the screening device includes a horizontally disposed sieve tube, a plurality of feeding ports opened on the upper side wall of the sieve tube, a plurality of partitions disposed in the sieve tube, a discharging port opened on the lower side wall of the sieve tube, and a baffle disposed at the discharging port; the length direction of the partition is parallel to the length direction of the sieve tube; the partition divides the sieve tube into a plurality of sieve chambers, and one of the feeding ports communicates with one of the sieve chambers; the baffle is perpendicular to the partition; the baffle divides the discharging port into a first discharging port close to the air supply device side and a second discharging port close to the slag collection device side.

[0010] Furthermore, the screening device further includes a feeding hopper disposed above the feeding port.

[0011] Furthermore, the material receiving device includes a material receiving box disposed directly below the discharging port; the lower end of the baffle is disposed inside the material receiving box and is connected to the side wall and the bottom wall of the material receiving box.

[0012] Furthermore, the air supply device includes a blower, an exhaust duct connected to the air outlet of the blower, an air inlet hood disposed at the air inlet end of the sieve tube, and a plurality of flow guiding plates disposed in the air inlet hood; the exhaust duct communicates with the air inlet hood; one end of the flow guiding plate is connected to the partition, and the other end is disposed in the exhaust duct.

[0013] The technical solution of the embodiment of the present utility model has at least the following advantages and beneficial effects: In the corn seed air-screen cleaning device of the present utility model, when in use, the corn seeds are conveyed to the screening device through a pipeline for screening operation, and the air supply device sends air with a certain flow rate into the screening device to perform air screening on the corn seeds. Among them, impurities with lighter texture, empty shells, etc. are blown into the slag collection device, and the corn kernels and impurities with heavier texture enter the receiving device below. The empty shell impurities are sent into the first cloth bag and the second cloth bag by the air flow. After the air passes through the first cloth bag and the second cloth bag, it diffuses into the air, and the impurities remain in the first cloth bag and the second cloth bag. Since an air outlet hole is opened at the end of the first cloth bag (the diameter of the air outlet hole is larger than the aperture of the first cloth bag and the second cloth bag itself and smaller than the size of the impurities), the air flow as a whole will move towards the direction of the air outlet hole. In this way, the impurities can be driven to move towards the end position of the first cloth bag, and then fall into the second cloth bag. After accumulating a certain amount, the impurities in the second cloth bag can be discharged uniformly. And due to the material factors of the first cloth bag and the second cloth bag, they can be folded and stored when not in use, without occupying too much space, and without causing the situation that impurities fly around in the workshop, with less dust and less impact on the health of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the embodiment of the present utility model, the drawings required to be used in the embodiment will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic structural diagram of a perspective view of the corn seed air-screen cleaning device provided by the embodiment of the present utility model;

[0016] Figure 2 It is a schematic structural diagram of a second perspective view of the corn seed air-screen cleaning device provided by the embodiment of the present utility model;

[0017] Figure 3 It is a schematic structural diagram of a perspective view inside the sieve tube provided by the embodiment of the present utility model;

[0018] Figure 4 It is a schematic structural diagram of a second perspective view inside the sieve tube provided by the embodiment of the present utility model.

[0019] Icons: 11 - sieve tube, 12 - feed inlet, 13 - feed hopper, 14 - first discharge port, 15 - second discharge port, 16 - partition board, 17 - baffle plate, 18 - material receiving box, 21 - blower, 22 - exhaust duct, 23 - air inlet hood, 24 - deflector, 31 - first cloth bag, 32 - second cloth bag, 33 - air outlet, 34 - support, 35 - motor, 36 - first clamping plate, 37 - second clamping plate, 38 - screw rod. Specific embodiments

[0020] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0022] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0023] In the description of the present utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0024] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected", "connected" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Embodiment

[0026] The following further explains in combination with specific embodiments. As shown in the attached Figure 1 - attached Figure 4 As shown, the maize seed air-screen cleaning device of this embodiment includes a screening device, a blowing device connected to the screening device, a material receiving device arranged below the screening device, and a slag collecting device arranged at one end of the screening device away from the blowing device; the slag collecting device includes a long strip-shaped first cloth bag 31 connected to the air outlet 33 of the screening device, a columnar second cloth bag 32 connected to the lower side of the end of the first cloth bag 31 away from the screening device, and an air outlet hole opened at the end of the first cloth bag 31 away from the screening device. Specifically, during use, the maize seeds are conveyed into the screening device through a pipeline for screening operation, and the blowing device sends air with a certain flow rate into the screening device to perform air-screening on the maize seeds. Among them, impurities with lighter texture, empty shells, etc. are blown into the slag collecting device, and maize grains and impurities with heavier texture enter the material receiving device below. The empty shell impurities are sent into the first cloth bag 31 and the second cloth bag 32 by the air flow. After the air passes through the first cloth bag 31 and the second cloth bag 32, it diffuses into the air, and the impurities remain in the first cloth bag 31 and the second cloth bag 32. Since an air outlet hole (the diameter of the air outlet hole is larger than the aperture of the first cloth bag 31 and the second cloth bag 32 itself and smaller than the size of the impurities) is opened at the end of the first cloth bag 31, the overall air flow will move towards the direction of the air outlet hole, so that the impurities can be driven to move towards the end position of the first cloth bag 31, and thus fall into the second cloth bag 32. After accumulating to a certain quantity, the impurities in the second cloth bag 32 can be discharged uniformly. And due to the material factors of the first cloth bag 31 and the second cloth bag 32, they can be folded and stored when not in use, without occupying too much space, and without causing the situation that impurities fly around in the factory building, with less dust and less impact on the health of workers.

[0027] A slag discharge port is opened at the lower end of the second cloth bag 32 in this embodiment, and the lower end of the second cloth bag 32 is tied up by a connecting rope. Specifically, using a connecting rope to tie and fix the lower end of the second cloth bag 32 makes the operation more convenient.

[0028] The slag collection device in this embodiment further includes an extrusion device sleeved on the first cloth bag 31 for extruding the first cloth bag 31, and the extrusion device is arranged close to the second cloth bag 32. The extrusion device includes a bracket 34 arranged below the first cloth bag 31, a pair of motors 35 arranged on the bracket 34 and on both sides of the cloth bag, a screw rod 38 vertically arranged and connected to the motor 35, a first clamping plate 36 connected to the bracket 34 and arranged below the first cloth bag 31, and a second clamping plate 37 threadedly connected to the screw rod 38 and arranged above the first cloth bag 31. Specifically, the extrusion device is mainly used to extrude the first cloth bag 31. It mainly drives the second clamping plate 37 to move downward by the rotation of the motor 35, and then clamps the first cloth bag 31 through the first clamping plate 36 and the second clamping plate 37. At this time, the air flow can no longer enter the second cloth bag 32 through the first cloth bag 31, and the impurities in the second cloth bag 32 can be discharged, which can avoid being affected by the air flow when discharging the impurities in the second cloth bag 32.

[0029] The screening device in this embodiment includes a horizontally arranged sieve tube 11, a plurality of feed ports 12 opened on the upper side wall of the sieve tube 11, a plurality of partition plates 16 arranged in the sieve tube 11, a discharge port opened on the lower side wall of the sieve tube 11, and a baffle 17 arranged at the discharge port; the length direction of the partition plate 16 is parallel to the length direction of the sieve tube 11; the partition plate 16 divides the sieve tube 11 into a plurality of sieve cavities, and a feed port 12 communicates with a sieve cavity; the baffle 17 is perpendicular to the partition plate 16; the baffle 17 divides the discharge port into a first discharge port 14 close to the air supply device side and a second discharge port 15 close to the slag collection device side. Specifically, the sieve tube 11 is divided into a plurality of sieve cavities, and each sieve cavity performs a screening operation independently, which can avoid the uneven air flow distribution caused by too long a length. Among them, the granular impurities enter the first discharge port 14 due to their large density, while the corn grains enter the second discharge port 15.

[0030] The screening device in this embodiment further includes a feed hopper 13 arranged above the feed port 12.

[0031] The material receiving device in this embodiment includes a material receiving box 18 arranged directly below the discharge port; the lower end of the baffle 17 is arranged inside the material receiving box 18 and is connected to the side wall and bottom wall of the material receiving box 18.

[0032] The air supply device in this embodiment includes a blower 21, an exhaust duct 22 connected to the air outlet 33 of the blower 21, an air inlet hood 23 arranged at the air inlet end of the sieve tube 11, and a plurality of flow guiding plates 24 arranged in the air inlet hood 23; the exhaust duct 22 communicates with the air inlet hood 23; one end of the flow guiding plate 24 is connected to the partition plate 16, and the other end is arranged in the exhaust duct 22. Specifically, the flow guiding plate 24 is mainly used to evenly distribute the air in the exhaust duct 22 to each sieve cavity.

[0033] In summary, for the corn seed air-screen cleaning device of this embodiment, during use, the corn seeds are conveyed into the screening device through a pipeline for screening operations. The air supply device sends air with a certain flow rate into the screening device to perform air screening on the corn seeds. Among them, impurities with a lighter texture, empty husks, etc. are blown into the slag collection device, while the corn kernels and impurities with a heavier texture enter the receiving device below. The empty husk impurities are sent into the first cloth bag 31 and the second cloth bag 32 by the air flow. After the air passes through the first cloth bag 31 and the second cloth bag 32, it diffuses into the air, and the impurities remain in the first cloth bag 31 and the second cloth bag 32. Since an air outlet hole is provided at the end of the first cloth bag 31 (the diameter of the air outlet hole is larger than the pore diameter of the first cloth bag 31 and the second cloth bag 32 itself and smaller than the size of the impurities), the overall air flow will move towards the direction of the air outlet hole. In this way, the impurities can be driven to move towards the end position of the first cloth bag 31, and thus fall into the second cloth bag 32. After accumulating a certain amount, the impurities in the second cloth bag 32 can be discharged uniformly. Moreover, due to the material factors of the first cloth bag 31 and the second cloth bag 32, they can be folded and stored when not in use, without occupying too much space and without causing the situation of impurities flying around in the workshop, with less dust and less impact on the health of workers.

[0034] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various changes and modifications can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A corn seed wind screen cleaning device, characterized in that: It comprises a screening device, an air supply device connected to the screening device, a material receiving device arranged below the screening device, and a slag collecting device arranged at one end of the screening device away from the air supply device; The slag collecting device comprises a first elongated cloth bag (31) connected to an air outlet (33) of the screening device, a columnar second cloth bag (32) connected to the lower side of one end of the first cloth bag (31) away from the screening device, and an air outlet hole opened at the end of the first cloth bag (31) away from the screening device.

2. The corn seed wind screen cleaning device according to claim 1, characterized in that: A slag discharge port is provided at the lower end of the second cloth bag (32), and the lower end of the second cloth bag (32) is gathered by a connecting rope.

3. The corn seed wind screen cleaning device according to claim 1, characterized in that: The slag collecting device further comprises a squeezing device which is sleeved on the first cloth bag (31) and is used for squeezing the first cloth bag (31), and the squeezing device is arranged close to the second cloth bag (32).

4. The corn seed wind screen cleaning device according to claim 3 is characterized by: The extrusion device comprises a bracket (34) arranged below the first cloth bag (31), a pair of motors (35) arranged on the bracket (34) and located on both sides of the cloth bag, a screw (38) connected to the motor (35) and vertically arranged, a first clamping plate (36) connected to the bracket (34) and arranged below the first cloth bag (31), and a second clamping plate (37) threadedly connected to the screw (38) and arranged above the first cloth bag (31).

5. The corn seed wind screen cleaning device according to claim 1, characterized in that: The screening device comprises a horizontally arranged screen tube (11), a plurality of feed ports (12) opened on the upper side wall of the screen tube (11), a plurality of partitions (16) arranged in the screen tube (11), a discharge port opened on the lower side wall of the screen tube (11), and a baffle (17) arranged at the discharge port; The length direction of the partition (16) is parallel to the length direction of the screen tube (11); the partition (16) divides the screen tube (11) into a plurality of screen cavities, and one of the feed ports (12) is connected to one of the screen cavities; The baffle (17) is perpendicular to the partition (16); the baffle (17) divides the discharge port into a first discharge port (14) close to the air supply device and a second discharge port (15) close to the slag collection device.

6. The corn seed wind screen cleaning device according to claim 5, characterized in that: The screening device further comprises a feed hopper (13) arranged on the upper side of the feed port (12).

7. The corn seed wind screen cleaning device according to claim 5, characterized in that: The material receiving device comprises a material receiving box (18) arranged directly below the material discharge port; the lower end of the baffle (17) is arranged inside the material receiving box (18) and connected to the side wall and bottom wall of the material receiving box (18).

8. The corn seed wind screen cleaning device according to claim 5, characterized in that: The air supply device comprises a blower (21), an exhaust pipe (22) connected to an air outlet (33) of the blower (21), an air inlet cover (23) arranged at an air inlet end of the screen tube (11), and a plurality of guide plates (24) arranged in the air inlet cover (23); The exhaust pipe (22) is in communication with the air inlet cover (23); one end of the guide plate (24) is connected to the partition plate (16), and the other end is arranged in the exhaust pipe (22).

Images