Dust-removing and anti-blocking device of seed screening machine
By setting up ventilation ducts and blowers in the air guide hood of the seed screening machine, using vertical ventilation grooves to disperse debris, and collecting them evenly through the joints in the sky, the problem of blockage of the air guide hood dust collector is solved, and the normal operation of the dust collector is achieved.
Patent Information
- Application Number
- CN202421625496.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-05-20
- Estimated Expiration
- 2034-07-10
AI Technical Summary
During the dust removal process of the seed sieve machine, the dust removal tube of the air guide hood is often blocked because debris enters into clusters rather than spreads evenly, resulting in aggregation and blockage.
A dust removal and blocking device is designed, including a ventilation duct and a blower in the air guide hood. A ventilation groove perpendicular to the air inlet direction is provided on the ventilation duct to disperse the clumps of debris and collect the debris evenly through the joints in the sky.
By breaking up debris, the dust removal pipe is blocked and the normal operation of the dust removal device is ensured.
Smart Images
Figure CN222885744U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dust removal devices, in particular to a dust removal and anti-blocking device for a seed screening machine. Background Technique
[0002] When the seed screening machine of our company removes light dust and straw fragments, it is often found that the dust removal pipe at the upper part of the air guide cover is blocked. After long-term observation by technicians, it is found that when sundries enter the air guide cover, they do not disperse evenly in the air. Often, they enter in groups, and then gradually accumulate in the dust removal pipe, forming a blockage, which needs to be solved. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is to provide a dust removal and anti-blocking device for a seed screening machine, which can disperse the grouped sundries and avoid the blockage of the pipeline.
[0004] To solve the above problems, the utility model adopts the following technical scheme:
[0005] A dust removal and anti-blocking device for a seed screening machine includes a special-shaped pipe joint communicated with the air guide cover, a dust collector communicated with the special-shaped pipe joint, an induced draft fan communicated with the dust collector, and a dust dispersing device arranged in the air guide cover.
[0006] Further, the dust dispersing device includes a ventilation pipe arranged in the middle of the air guide cover and a blower communicated with the ventilation pipe; ventilation grooves for dispersing dust are arranged on the ventilation pipe.
[0007] Further, the opening direction of the ventilation groove is perpendicular to the air inlet direction of the air guide cover.
[0008] Further, the ventilation grooves are respectively arranged on both sides of the ventilation pipe, and the ventilation grooves are arranged at intervals along the length direction of the ventilation pipe.
[0009] Further, the width of the ventilation groove does not exceed 2 mm.
[0010] Further, the included angle between the center line of the ventilation groove and the horizontal plane is θ; θ is 15 degrees.
[0011] Further, the special-shaped pipe joint is a round-to-square joint, and the square end of the special-shaped pipe joint is fixedly communicated with the air guide cover; the round end of the special-shaped pipe joint is communicated with the air inlet of the dust collector.
[0012] The beneficial effects of the utility model are:
[0013] By arranging the ventilation pipe with ventilation grooves thereon, the ventilation grooves are perpendicular to the air inlet direction of the air guide cover, and the wind in the ventilation grooves blows the grouped sundries in the air guide cover to be dispersed, avoiding the blockage of the dust removal pipeline;
[0014] Through the provided square-to-round pipe joint, the sundries in the air guide hood can be evenly collected, preventing the sundries in the air guide hood from entering the dust removal pipeline in a lump and causing blockage. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of the present utility model;
[0016] Figure 2 is Figure 1 an enlarged view of part C of
[0017] Figure 3 is Figure 1 a sectional view taken along line A-A of
[0018] Figure 4 is a schematic top view of the structure of the special-shaped pipe joint;
[0019] Figure 5 is a schematic diagram of the position of the ventilation slot on the ventilation pipe in Embodiment 2;
[0020] Explanation of the reference numerals in the drawings:
[0021] 1 - air guide hood, 2 - special-shaped pipe joint, 3 - dust collector, 4 - induced draft fan, 5 - blower, 6 - ventilation pipe, 61 - ventilation slot. SPECIFIC EMBODIMENTS
[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. The described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0023] Embodiment 1
[0024] As Figures 1-4 shown,
[0025] A dust removal and anti-blocking device for a seed screening machine includes a special-shaped pipe joint 2 communicated with the air guide hood 1, a dust collector 3 communicated with the special-shaped pipe joint 2, an induced draft fan 4 communicated with the dust collector 3, and a dust dispersing device arranged in the air guide hood 1.
[0026] The dust dispersing device includes a ventilation pipe 6 arranged in the middle of the air guide hood 1 and a blower 5 communicated with the ventilation pipe 6; a ventilation slot 61 for dispersing dust is arranged on the ventilation pipe 6. One end of the ventilation pipe 6 is sealed with the side wall of the air guide hood 1, and the other end of the ventilation pipe 6 is fixedly communicated with the air outlet of the blower 5.
[0027] The opening direction of the ventilation slot 61 is perpendicular to the air inlet direction of the air guide hood 1.
[0028] As Figures 2-3 shown, the ventilation slots 61 are respectively arranged on both sides of the ventilation pipe 6, and the ventilation slots 61 are arranged at intervals along the length direction of the ventilation pipe 6.
[0029] The width of the ventilation slot 61 does not exceed 2 mm. If the ventilation slot 61 is too wide, the power of the blower 5 required is large, which is uneconomical.
[0030] The working process of the present utility model
[0031] When the screening machine screens seeds, light impurities (such as broken straws or broken leaves or broken seed coats) and dust are sucked into the air guide cover 1 by the wind of the induced draft fan 4. At this time, the blower 5 is started, and the wind of the blower 5 acts vertically on the light impurities through the ventilation slots 61, which can disperse the agglomerated impurities, and the induced draft fan 4 sucks the impurities and dust into the dust collector 3.
[0032] Embodiment 2
[0033] This embodiment is basically the same as Embodiment 1
[0034] The difference is that
[0035] As Figure 5 shown, the central line of the ventilation slot 61 in the circumferential direction forms an angle θ with the central line (horizontal direction) of the ventilation pipe 6 upward, and the value of θ is 15 degrees. When the angle is 0 degree, the ventilation slot 61 blows horizontally, which has a resistance effect on the wind force of the induced draft fan 4. When the angle is too large, it has an accelerating effect on the impurities in the air guide cover 1, which is not conducive to dispersing the agglomerated impurities. After repeated tests, when the angle is 15 degrees, the air outlet of the ventilation slot 61 is beneficial to accelerating the impurities in the air guide cover 1 and can also disperse the agglomerated impurities.
[0036] Embodiment 3
[0037] This embodiment is basically the same as Embodiment 1
[0038] The difference is that
[0039] As Figure 1 and Figure 4 shown, the special-shaped pipe joint 2 is a square-to-round joint. The square end of the special-shaped pipe joint 2 is fixedly communicated with the air guide cover 1; the round end of the special-shaped pipe joint 2 is communicated with the air inlet of the dust collector 3.
[0040] By providing the square-to-round pipe joint, the square outlet of the air guide cover 1 can be uniformly combined with the round dust removal pipeline, replacing the original direct connection of the round pipe at the top of the air guide cover 1, avoiding the formation of a plugging effect at the connection part and avoiding the formation of new agglomerated impurities at the connection part.
[0041] The above are only the preferred specific embodiments of the present utility model; however, the protection scope of the present utility model is not limited thereto; any person skilled in the art within the technical scope disclosed by the present utility model; according to the technical solution of the present utility model and its improved conceptions, making equivalent substitutions or changes; should be covered within the protection scope of the present utility model.
[0042] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.
[0043] The above are only the embodiments of the present invention. Common general knowledge such as the specific structures and characteristics in the solutions is not described in detail herein. Those of ordinary skill in the art know all the common general knowledge in the technical field to which the invention belongs before the application date or the priority date, can know all the existing technologies in this field, and have the ability to apply the conventional experimental means before this date. Those of ordinary skill in the art can, under the inspiration given in this application, combine their own abilities to complete and implement this solution. Some typical well-known structures or well-known methods should not be an obstacle for those of ordinary skill in the art to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.
Claims
1. A dust removal and anti-blocking device for a seed screening machine, characterized in that: It comprises a special-shaped pipe joint (2) connected to an air guide cover (1), a dust collector (3) connected to the special-shaped pipe joint (2), an induced draft fan (4) connected to the dust collector (3), and a dust dispersing device arranged in the air guide cover (1); The dust dispersing device comprises a ventilation pipe (6) arranged in the middle of the air guide cover (1) and a blower (5) connected to the ventilation pipe (6); the ventilation pipe (6) is provided with a ventilation slot (61) for dispersing dust; The opening direction of the ventilation slot (61) is perpendicular to the air inlet direction of the air guide cover (1); The ventilation slots (61) are respectively arranged on both sides of the ventilation pipe (6), and the ventilation slots (61) are arranged at intervals along the length direction of the ventilation pipe (6).
2. A seed screening machine dust removal and anti-blocking device according to claim 1, characterized in that: The width of the ventilation slot (61) does not exceed 2 mm.
3. A dust removal and anti-blocking device for a seed screening machine according to claim 2, characterized in that: The angle between the center line of the ventilation slot (61) and the horizontal plane is θ; and θ is 15 degrees.
4. A seed screening machine dust removal and anti-blocking device according to claim 1, characterized in that: The special-shaped pipe joint (2) is a round-shaped joint; the square end of the special-shaped pipe joint (2) is fixedly connected to the air guide cover (1); and the round end of the special-shaped pipe joint (2) is connected to the air inlet of the dust collector (3).