Multi-stage cleaning sieve

Abstract

The utility model relates to the technical field of material screening, in particular to a multi-stage cleaning sieve. The utility model provides a multi-stage cleaning sieve. The multi-stage cleaning sieve comprises a shell body, a feeding bin, a sieve body, a separator and a vibration motor. Mixed materials enter the cleaning sieve through the feeding bin, and large impurities with the particle size larger than the aperture of the first sieve holes in the mixed materials cannot pass through the first sieve holes and are left on the first sieve plate. Small impurities with the particle size smaller than the aperture of the second sieve pores in the mixed material pass through the second sieve pores. Light impurities in the mixed material are separated from the target material due to the suction force of the airflow when passing through the vertical air duct. By arranging the screen body and the separator, large impurities, small impurities and light impurities are continuously separated, and finally target materials meeting requirements are obtained. The manual labor is reduced, and the separation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of material screening, and particularly relates to a multi-stage cleaning sieve. Background Art

[0002] In existing scientific research during experiments, it is necessary to select appropriate target materials. However, the materials may contain impurities, such as straws, stones, soil, etc. in seeds. In the prior art, the samples are mainly cleaned manually through methods such as winnowing baskets, fans, hair dryers, and hand-operated sieves. This manual screening method is labor-intensive and time-consuming, thus greatly reducing work efficiency. Therefore, how to use a mechanized method to separate and remove impurities from a small amount of target material samples mixed with impurities has become a concern for those skilled in the art. Content of the Utility Model

[0003] In order to solve the problems and deficiencies in the prior art, the utility model provides a multi-stage cleaning sieve, which can remove large impurities, small impurities, and light impurities at one time during the process of sample treatment before experiments, saving time and effort, reducing labor costs, and improving work efficiency.

[0004] Specifically, the utility model provides a multi-stage cleaning sieve, which includes: a housing body, a feed bin, a sieve body, a separator, and a vibration motor;

[0005] The feed bin communicates with the cavity formed by the housing body;

[0006] The sieve body includes a first sieve plate and a second sieve plate; the first sieve plate and the second sieve plate are detachably installed in the cavity; the first sieve plate is located below the feed bin, and the first sieve plate has first sieve holes to separate large impurities from the mixed materials; the aperture of the first sieve holes is larger than the aperture of the target materials; the second sieve plate is located below the first sieve plate, and the second sieve plate has second sieve holes to separate small impurities from the mixed materials; the aperture of the second sieve holes is smaller than the aperture of the target materials;

[0007] The separator communicates with the second sieve plate to separate light impurities on the second sieve plate from the mixed materials;

[0008] The vibration motor is connected to the sieve body, and the vibration motor drives the sieve body to vibrate when operating.

[0009] Optionally, the separator is an air suction separator, and the air suction separator includes:

[0010] A vertical air duct, and the second sieve plate extends into the interior of the vertical air duct;

[0011] The first air duct, one end of the first air duct is communicated with the top end of the vertical air duct;

[0012] A fan, the fan has an air outlet and an air inlet, and the air inlet is communicated with the other end of the first air duct;

[0013] The second air duct, one end of the second air duct is communicated with the air outlet;

[0014] A damper, the damper is adjustably installed in the second air duct for adjusting the magnitude of the air discharge volume.

[0015] Optionally, the multi-stage cleaning sieve further includes:

[0016] A dust collection box, the dust collection box is communicated with the other end of the second air duct;

[0017] A clean grain hopper, the clean grain hopper is located below the vertical air duct and is communicated with the bottom of the vertical air duct.

[0018] Optionally, the sieve body further includes a collection plate, the collection plate is located below the second sieve plate for collecting the small impurities.

[0019] Optionally, the multi-stage cleaning sieve further includes a large impurity channel and a small impurity channel;

[0020] The large impurity channel is connected to the first sieve plate;

[0021] The small impurity channel is connected to the collection plate.

[0022] Optionally, the first sieve plate is inclined, the end far from the feed bin is lower than the end close to the feed bin, and the large impurity channel is located at the end far from the feed bin;

[0023] The collection plate is inclined, and the small impurity channel is located at the lower end of the collection plate.

[0024] Optionally, the inclination directions of the first sieve plate and the collection plate are the same.

[0025] Optionally, the multi-stage cleaning sieve further includes a collection bucket; the large impurity channel and the small impurity channel extend to the outside of the housing body, and the collection bucket is movably placed below the large impurity channel and the small impurity channel so that the large impurities and / or small impurities flowing out of the large impurity channel and / or the small impurity channel enter the collection bucket.

[0026] Optionally, the multi-stage cleaning sieve further includes a spring; the upper end of the spring is connected below the sieve body, and the lower end of the spring is connected to the housing body.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] The large impurities in the mixed material with a particle size larger than the aperture of the first sieve hole cannot pass through the first sieve hole and are left on the first sieve plate. The small impurities in the mixed material with a particle size smaller than the aperture of the second sieve hole pass through the second sieve hole. The light impurities in the mixed material are separated from the target material due to the suction of the air flow when passing through the vertical air duct. By setting up the sieve body and the separator, the separation of large impurities, small impurities and light impurities is continuously achieved, and finally the target material meeting the requirements is obtained. The manual labor is reduced and the separation efficiency is improved. Description of the Drawings

[0029] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the drawings in an exemplary but not restrictive manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0030] Figure 1 is a schematic internal structure diagram according to an embodiment of the present invention;

[0031] Figure 2 is a schematic structure diagram of a sieve body according to the present invention;

[0032] Figure 3 is a schematic internal structure diagram according to another embodiment of the present invention;

[0033] Figure 4 is a left view according to an embodiment of the present invention.

[0034] In the figure: 1 - multi-stage cleaning sieve, 10 - housing body, 20 - feed bin, 30 - sieve body, 31 - first sieve plate, 32 - second sieve plate, 33 - collection plate, 40 - separator, 41 - vertical air duct, 42 - first air duct, 43 - fan, 44 - second air duct, 50 - vibration motor, 61 - dust collection box, 62 - collection bucket, 63 - clean grain hopper, 71 - large impurity passage, 72 - small impurity passage, 80 - spring. Detailed Description of the Specific Embodiment

[0035] The following refers to Figures 1 to 4To describe a multi-stage cleaning sieve according to an embodiment of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features, that is, include one or more of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. When a certain feature "includes or contains" a certain or certain features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0036] In the description of this embodiment, the description with reference to terms such as "an embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0037] Figure 1 is a schematic internal structure diagram of a multi-stage cleaning sieve according to an embodiment of the present invention. As Figure 1 shown and in combination with Figures 2 to 4 , the present invention provides a multi-stage cleaning sieve. The above multi-stage cleaning sieve 1 includes a housing body 10, a feed bin 20, a sieve body 30, a separator 40, and a vibration motor 50. The feed bin 20 communicates with the cavity formed by the housing body 10. The sieve body 30 includes a first sieve plate 31 and a second sieve plate 32, and the first sieve plate 31 and the second sieve plate 32 are detachably installed in the cavity. The first sieve plate 31 is located below the feed bin 20, and the first sieve plate 31 has first sieve holes to separate large impurities from the mixed material; the second sieve plate 32 is located below the first sieve plate 31, and the second sieve plate 32 has second sieve holes to separate small impurities from the mixed material. The aperture of the first sieve holes is larger than the aperture of the target material, and the aperture of the second sieve holes is smaller than the aperture of the target material. The separator 40 communicates with the second sieve plate 32 to separate the light impurities on the second sieve plate 32 from the mixed material. The vibration motor 50 is connected to the sieve body 30, and the vibration motor 50 drives the sieve body 30 to vibrate when operating.

[0038] In this embodiment, the housing body 10 encloses the cavity of the multi-stage cleaning sieve 1. An inlet is provided on the housing body 10 to enable the mixed material to be screened to enter the interior of the multi-stage cleaning sieve 1 through the inlet. The feed bin 20 is communicated with the cavity of the multi-stage cleaning sieve 1 through the inlet. A sieve body 30 having a first sieve plate 31 and a second sieve plate 32 is provided in the cavity of the multi-stage cleaning sieve 1. The sieve body 30 is connected to a vibration motor 50. The vibration of the vibration motor 50 drives the sieve body 30 to vibrate, which means that the first sieve plate 31 and the second sieve plate 32 vibrate. The specific working process includes: First, the mixed material to be cleaned enters the multi-stage cleaning sieve 1 through the discharge port of the feed bin 20 and lands on the first sieve plate 31. Second, the vibration of the first sieve plate 31 causes the material with a particle size smaller than the aperture of the first sieve hole to fall through the first sieve hole onto the second sieve plate 32, and the material with a particle size larger than the aperture of the first sieve hole stays on the first sieve plate 31, realizing the separation of large impurities. Third, the vibration of the second sieve plate 32 causes the material with a particle size smaller than the aperture of the second sieve hole to fall through the second sieve hole, and the material with a particle size larger than the aperture of the second sieve hole stays on the second sieve plate 32, realizing the separation of small impurities. While the second sieve plate 32 is vibrating, the centrifuge is also working. The material on the second sieve plate 32 enters the interior of the centrifuge, and under the action of the centrifuge, the separation of light impurities is realized. Generally speaking, the separation of large impurities, small impurities and light impurities is realized through the sieve body 30 and the separator 40, and the cleaning of the mixed material is realized to obtain the material that meets the requirements.

[0039] In this embodiment, by providing the sieve body 30 and the separator 40, the separation of large impurities, small impurities and light impurities is continuously realized, and finally the target material that meets the requirements is obtained. The separation efficiency is improved.

[0040] In some embodiments of the present utility model, the cleaning sieve includes a plurality of sieve plates with different sieve hole apertures. During the process of cleaning the material, the appropriate first sieve plate 31 and second sieve plate 32 are selected according to the target material. The multi-stage cleaning sieve 1 is suitable for the cleaning and screening of different target materials.

[0041] In other embodiments of the present utility model, the aperture of the first sieve hole and the aperture of the second sieve hole can be adjusted. By adjusting the sizes of the aperture of the first sieve hole and the aperture of the second sieve hole, the multi-stage cleaning sieve 1 is suitable for the cleaning and screening of different target materials.

[0042] In some embodiments of the present utility model, the separator 40 is an air suction separator 40. The air suction separator 40 includes a vertical air duct 41, a first air pipe 42, a fan 43 and a second air pipe 44. The fan 43 has an air discharge port and an air inlet. The second sieve plate 32 extends into the vertical air duct 41. The top end of the vertical air duct 41 is communicated with one end of the first air pipe 42. The other end of the first air pipe 42 is communicated with the air inlet of the fan 43. The air outlet of the fan 43 is connected to the second air pipe 44.

[0043] In this embodiment, the fan 43 is started and the separator 40 begins to operate. When the air suction separator 40 is operating, the air flow direction in the air suction separator 40 is successively the vertical air duct 41, the first air duct 42, the fan 43, and the second air duct 44. That is to say, the air flow enters the air suction separator 40 from the vertical air duct 41 and finally discharges from the second air duct 44. The second sieve plate 32 extends into the interior of the vertical air duct 41, and the materials that have removed large impurities and small impurities on the second sieve plate 32 flow into the vertical air duct 41. That is to say, the materials entering the vertical air duct 41 only contain the target materials and light impurities. When the air suction separator 40 is turned on, the light impurities enter the first air duct 42 with the air flow and are finally discharged through the second air duct 44, and the target materials fall in the vertical air duct 41.

[0044] In this embodiment, using the air suction separator 40 to separate light impurities has the advantages of high efficiency, small volume, compact structure, and good air separation effect.

[0045] In some other embodiments of the present utility model, the air suction separator 40 further includes a damper. The adjustment of the air speed of the air suction separator 40 is achieved by adjusting the opening size of the damper.

[0046] In this embodiment, a damper with adjustable opening is provided. By adjusting the opening of the damper, the air suction separator 40 can maintain the best air suction effect and separation efficiency.

[0047] In some embodiments of the present utility model, the multi-stage cleaning sieve 1 further includes a clean grain hopper 63. The clean grain hopper 63 is located below the vertical air duct 41 and is connected to the bottom of the vertical air duct 41.

[0048] Specifically, the lower end of the vertical air duct 41 is not closed, and the clean grain hopper 63 is placed below the vertical air duct 41. The target materials after removing large impurities, small impurities, and light impurities flow into the clean grain hopper 63 along the vertical air duct 41. In other words, the impurities in the materials flowing into the clean grain hopper 63 have been cleaned up.

[0049] In this embodiment, the clean grain hopper 63 is provided to collect the target materials.

[0050] In some embodiments of the present utility model, the clean grain hopper 63 is a container with an open top, and there is an opening on the housing body 10 so that the clean grain hopper 63 can pass through the housing body 10 into the cavity or be taken out of the cavity.

[0051] In some embodiments of the present utility model, the multi-stage cleaning sieve 1 further includes a dust collection box 61, and the dust collection box 61 is connected to the other end of the second air duct 44.

[0052] Specifically, after the light impurities flow out from the second air duct 44, they enter the dust collection box 61. In this embodiment, the dust collection box 61 is provided to collect the light impurities and prevent the light impurities from flowing out of the second air duct 44 and entering the surrounding environment.

[0053] In some other embodiments of the present utility model, the sieve body 30 further includes a collection plate 33, and the collection plate 33 is located below the second sieve plate 32 for collecting small impurities.

[0054] In this embodiment, the collection plate 33 is located below the second sieve plate 32, and the small impurities with a particle size smaller than the second sieve holes pass through the second sieve holes and then gather on the collection plate 33. The arrangement of the collection plate 33 prevents the small impurities from scattering in the multi-stage cleaning sieve 1 and avoids damage to each component.

[0055] In some embodiments of the present utility model, the multi-stage cleaning sieve 1 further includes a large impurity channel 71 and a small impurity channel 72. The large impurity channel 71 is connected to the first sieve plate 31, and the small impurity channel 72 is connected to the collection plate 33.

[0056] In this embodiment, the large impurity channel 71 is connected to the first sieve plate 31 so that the large impurities on the first sieve plate 31 flow out from the first sieve plate 31 through the large impurity channel 71. The small impurity channel 72 is connected to the collection plate 33 so that the small impurities on the collection plate 33 flow out from the collection plate 33 through the small impurity channel 72. The large impurity channel 71 prevents the accumulation of large impurities on the first sieve plate 31, and the arrangement of the small impurity channel 72 prevents the accumulation of small impurities on the collection plate 33, thereby avoiding the reduction of the screening efficiency of the cleaning sieve caused by the accumulation of large impurities and / or small impurities during use.

[0057] In some embodiments of the present utility model, the first sieve plate 31 is inclined, and the end far from the feed bin 20 is lower than the end close to the feed bin 20, and the large impurity channel 71 is located at the end far from the feed bin 20. The collection plate 33 is inclined, and the small impurity channel 72 is located at the lower end of the collection plate 33.

[0058] In this embodiment, the inclination of the first sieve plate 31 facilitates the gathering of large impurities towards the large impurity channel 71; the inclination of the collection plate 33 facilitates the gathering of small impurities towards the small impurity channel 72.

[0059] In some embodiments of the present utility model, the second sieve plate 32 is inclined, and the end extending to the vertical air duct 41 is lower than the end far from the vertical air duct 41. In this embodiment, the inclination of the second sieve plate 32 makes it easy for the materials on the second sieve plate 32 to flow into the vertical air duct 41.

[0060] In some embodiments of the present utility model, the inclination directions of the first sieve plate 31 and the collection plate 33 are the same.

[0061] In some other embodiments of the present utility model, the inclination directions of the first sieve plate 31 and the second sieve plate 32 are the same.

[0062] In some other embodiments of the present utility model, the multi-stage cleaning sieve 1 further includes a collection bucket 62. The large impurity channel 71 and the small impurity channel 72 extend to the outside of the housing body 10, and the collection bucket 62 is movably placed below the large impurity channel 71 and the small impurity channel 72 so that the large impurities and / or small impurities flowing out of the large impurity channel 71 and / or the small impurity channel 72 enter the collection bucket 62.

[0063] In this embodiment, the large impurities flow out of the housing body 10 through the large impurity channel 71 and enter the collection bucket 62, and the small impurities flow out of the housing body 10 through the small impurity channel 72 and enter the collection bucket 62. Compared with collecting the large impurities and / or small impurities inside the cleaning body surrounded by the housing body 10, the extension of the large impurity channel 71 and the small impurity channel 72 to the outside of the housing body 10 facilitates the cleaning of the large impurities and / or small impurities.

[0064] In some other embodiments of the present utility model, the multi-stage cleaning sieve 1 further includes a spring 80. The upper end of the spring 80 is connected below the sieve body 30, and the lower end of the spring 80 is connected to the housing body 10. In this embodiment, the spring 80 plays a supporting role for the sieve body 30.

[0065] At this point, those skilled in the art should recognize that although multiple exemplary embodiments of the present utility model have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present utility model can still be directly determined or derived from the disclosed content of the present utility model without departing from the spirit and scope of the present utility model. Therefore, the scope of the present utility model should be understood and determined to cover all these other variations or modifications.

Claims

1. A multi-stage cleaning sieve, characterized in that, Comprising: A housing body, a feed bin, a sieve body, a separator, and a vibration motor; The feed bin communicates with a cavity formed by the housing body; The sieve body includes a first sieve plate and a second sieve plate; the first sieve plate and the second sieve plate are detachably mounted in the cavity; the first sieve plate is located below the discharge port of the feed bin, and the first sieve plate has first sieve holes to separate large impurities from the mixed material; the aperture of the first sieve holes is larger than the aperture of the target material; the second sieve plate is located below the first sieve plate, and the second sieve plate has second sieve holes to separate small impurities from the mixed material; the aperture of the second sieve holes is smaller than the aperture of the target material; The separator communicates with the second sieve plate to separate light impurities on the second sieve plate from the mixed material; The vibration motor is connected to the sieve body, and when the vibration motor operates, it drives the sieve body to vibrate.

2. The multi-stage cleaning sieve according to claim 1, wherein The separator is an air suction separator, and the air suction separator includes: A vertical air duct, and the second sieve plate extends into the interior of the vertical air duct; A first air duct, one end of the first air duct communicates with the top end of the vertical air duct; A blower, the blower has an air discharge port and an air inlet, and the air inlet communicates with the other end of the first air duct; A second air duct, one end of the second air duct communicates with the air discharge port; A damper, the damper is adjustably mounted in the second air duct to adjust the magnitude of the air discharge volume.

3. The multi-stage cleaning sieve according to claim 2, wherein, Further comprising: A dust collection box, the dust collection box communicates with the other end of the second air duct; A clean grain hopper, the clean grain hopper is located below the vertical air duct and communicates with the bottom of the vertical air duct.

4. The multi-stage cleaning sieve according to claim 1, wherein The sieve body further includes a collection plate, the collection plate is located below the second sieve plate to collect the small impurities.

5. The multi-stage cleaning sieve according to claim 4, wherein Further comprising a large impurity passage and a small impurity passage; The large impurity passage is connected to the first sieve plate; The small impurity passage is connected to the collection plate.

6. The multi-stage cleaning sieve according to claim 5, wherein The first sieve plate is inclined, and the end far from the feed bin is lower than the end close to the feed bin, and the large impurity passage is located at the end far from the feed bin; The collection plate is inclined, and the small impurity passage is located at the lower end of the collection plate.

7. The multi-stage cleaning sieve according to claim 6, wherein The inclination directions of the first sieve plate and the collection plate are the same.

8. The multi-stage cleaning sieve according to claim 5, characterized in that, Further comprising a collection bucket; the large impurity passage and the small impurity passage extend to the outside of the housing body, and the collection bucket is movably placed below the large impurity passage and the small impurity passage so that the large impurities and / or small impurities flowing out of the large impurity passage and / or the small impurity passage enter the collection bucket.

9. The multi-stage cleaning sieve according to claim 1, wherein Further comprising a spring; the upper end of the spring is connected to the lower part of the sieve body, and the lower end of the spring is connected to the housing body.

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