Screening assembly and impurity removal machine

Abstract

The utility model relates to a kind of screening assembly and impurity removing machine, wherein, screening assembly includes first screen cloth, first guide groove, second screen cloth and second guide groove by upper to lower sequentially inclined arrangement;The eyelet size of first screen cloth is greater than the eyelet size of second screen cloth, and first guide groove is used to collect the undersize of first screen cloth;The low end of first guide groove is located above the high end of second screen cloth, to guide the undersize of first screen cloth into second screen cloth;Second guide groove is used to collect the undersize of second screen cloth, and the high end of second guide groove also extends to below the low end of first screen cloth, to collect the oversize of first screen cloth;The screening assembly and impurity removing machine of the utility model can efficiently remove impurities in grain particles when grain impurities are removed, and at the same time, shoulder stone after first screen cloth screening and gravel after second screen cloth screening are all converged into second guide groove, the above-mentioned screening assembly structure is compact, conducive to the miniaturization of impurity removing machine equipment.

Description

Technical Field

[0001] This utility model relates to the field of grain impurity removal equipment, specifically to a screening component and an impurity removal machine. Background Technology

[0002] Grain impurity removal mainly relies on physical separation technology, which separates grains and impurities based on differences in physical properties such as particle size, density, and shape.

[0003] In existing technologies, some impurity removal machines have two layers of filter screens in their screening components. The upper filter screen removes impurities larger than the grain, while the lower filter screen removes impurities smaller than the grain. This method can efficiently remove impurities such as pebbles and gravel from the grain. However, in these impurity removal machines, the impurities removed by each screening device are discharged separately. Some machines have a discharge port for each of the two filter screens, directly discharging the impurities outside the machine, which makes impurity collection inconvenient. Alternatively, some machines have a set of impurity collection devices for each of the two filter screens to collect the impurities discharged from the two screening processes separately. This configuration is not conducive to the miniaturization of the impurity removal equipment. Utility Model Content

[0004] The purpose of this invention is to provide a screening component and a waste removal machine to solve the problems mentioned in the background art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: On the one hand, this utility model provides a screening component, including a first screen, a first guide groove, a second screen, and a second guide groove arranged in a series of inclined sections from top to bottom; The mesh size of the first screen is larger than that of the second screen; The first guide channel is used to collect the undersize material from the first screen; the lower end of the first guide channel is located above the higher end of the second screen to guide the undersize material from the first screen onto the second screen. The second guide groove is used to collect the undersize material of the second screen, and the high end of the second guide groove extends below the low end of the first screen to collect the oversize material of the first screen.

[0006] In the screening component of this utility model, the grain is screened twice by a first screen and a second screen, and the oversize material on the second screen is finally separated and obtained. When screening grain, the oversize material on the first screen is impurities such as stones larger than grain particles, and the undersize material on the first screen is grain particles mixed with sand and gravel. The undersize material after the grain particles mixed with sand and gravel are grain particles smaller than grain particles, and the oversize material on the second screen is the cleaned grain particles.

[0007] The above-mentioned screening components can efficiently remove impurities from grain particles. At the same time, the pebbles screened by the first screen and the gravel screened by the second screen are all collected in the second guide trough. The above-mentioned screening components have a compact structure, which is conducive to the miniaturization of the equipment.

[0008] The screening component of this utility model can be further improved as follows: Furthermore, the first screen and the first guide groove are disposed on the first frame, and the second screen and the second guide groove are disposed on the second frame. Both the first frame and the second frame are provided with vibration generating devices to improve the screening efficiency of the first screen and the second screen.

[0009] Furthermore, in a top view, the first screen has a first extension extending beyond the lower end of the first guide groove, and the first frame has a first opening located outside the first extension and a second opening obscuring the lower part of the first extension; the second guide groove has a second extension extending beyond the upper end of the second screen. The first extension and the second extension are connected through the first opening; the lower end of the first guide groove is connected to the upper end of the second screen through the second opening, so that the first opening can accurately guide the material on the first screen into the second guide groove, and the second opening can accurately guide the material undersize of the first screen onto the second screen.

[0010] Furthermore, the first frame is also provided with a first partition located between the first opening and the second opening. The upper end of the first partition abuts against the lower end of the first screen, which can prevent the oversize and undersize materials of the first screen from mixing when they enter the first opening and the second opening respectively.

[0011] Furthermore, the high end of the second screen is provided with a second baffle extending upward between the first opening and the second opening, which can prevent the materials discharged through the first opening and the second opening from mixing.

[0012] Furthermore, in a top view, the second screen has a third extension extending beyond the lower end of the second guide groove, and the second frame has a third opening located outside the third extension and a fourth opening that covers the lower part of the third extension. The third opening is connected to the lower end of the second screen, and the fourth opening is connected to the lower end of the second guide groove. The third opening is used to discharge the oversize material of the second screen, and the fourth opening is used to discharge the undersize material of the second screen and the oversize material of the first screen.

[0013] Furthermore, the second frame is also provided with a third partition located between the third opening and the fourth opening. The upper end of the third partition abuts against the lower end of the second screen, which can prevent the material on the second screen from mixing with the material in the second guide groove.

[0014] On the other hand, the present invention also provides a cleaning machine, wherein the aforementioned screening component is used in the cleaning machine.

[0015] Furthermore, the impurity removal machine is also equipped with a first weighing device and a second weighing device; The first weighing device is used to weigh the material on the second screen, and the second weighing device is used to weigh the material on the first screen and the material under the second screen.

[0016] Furthermore, the impurity removal machine is also equipped with an air separation device located above the screening component, which can remove light impurities from the material before the screening component operates. Attached Figure Description

[0017] Figure 1 A perspective view of the screening component provided in an embodiment of this utility model; Figure 2 A top view of the screening component provided in an embodiment of this utility model; Figure 3 for Figure 2 Sectional view of plane AA in the middle; Figure 4 A perspective view of the impurity removal machine provided in an embodiment of this utility model; Figure 5 This is a schematic diagram of the weighing device provided in an embodiment of the present utility model; The attached diagram lists the components represented by each number as follows: 1-Screening assembly, 10-First frame, 100-First screen, 1000-First extension, 101-First guide groove, 102-First opening, 103-Second opening, 104-First partition, 11-Second frame, 110-Second screen, 1100-Third extension, 111-Second guide groove, 1110-Second extension, 112-Second partition, 113-Third opening, 114-Fourth opening, 115-Third partition, 2-Air separator, 3-Feed inlet, 4-Weighing device, 40-Receiving hopper, 41-Gate, 42-Weighing sensor, 43-Photoelectric sensor. Detailed Implementation

[0018] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0019] This utility model discloses a screening component and a cleaning machine, which can be used in material screening and cleaning scenarios. In the field of material screening, the undersize material referred to below refers to the material that has passed through the screen mesh, and the oversize material referred to below refers to the material that is blocked by the screen mesh.

[0020] Reference Figures 1 to 3 This utility model provides a screening component 1, which includes a first screen 100, a first guide groove 101, a second screen 110 and a second guide groove 111 arranged in a series of inclined sections from top to bottom, wherein the mesh size of the first screen 100 is larger than the mesh size of the second screen 110.

[0021] Specifically, the first screen 100 is arranged at an angle, the first guide groove 101 is arranged at an angle below the first screen 100, the second screen 110 is arranged at an angle below the first guide groove 101, and the second guide groove 111 is arranged at an angle below the second screen 110. Therefore, it is easy to understand that the first screen 100, the first guide groove 101, the second screen 110, and the second guide groove 111 all have relatively high and low ends.

[0022] Reference Figure 3 When the material is poured onto the first screen 100, as the material rolls down the inclined surface of the first screen 100, some of the material passes through the mesh of the first screen 100 and becomes the undersize material, while some of the material is blocked by the holes of the first screen 100 and becomes the oversize material. The oversize material rolls out along the lower end of the first screen 100.

[0023] The function of the first guide groove 101 is to collect the undersize material of the first screen 100, that is, the undersize material of the first screen 100 falls into the lower first guide groove 101; wherein, the lower end of the first guide groove 101 is located above the upper end of the second screen 110, and the undersize material of the first screen 100 rolls down the inclined surface of the first guide groove 101 onto the lower second screen 110.

[0024] The second guide trough 111 is located below the second screen 110. After the material is screened by the second screen 110, the undersize material of the second screen 110 falls into the lower guide trough 111. At the same time, since both the second screen 110 and the second guide trough 111 are inclined, the oversize material of the second screen 110 can roll out along the lower end of the second screen 110. The higher end of the second guide trough 111 extends to below the lower end of the first screen 100 to collect the oversize material of the first screen 100. Therefore, the second guide trough 111 simultaneously collects the oversize material of the first screen 100 and the undersize material of the second screen 110, and allows the oversize material of the first screen 100 and the undersize material of the second screen 110 to roll out along the lower end of the second guide trough 111.

[0025] The target material can be obtained at the low end of the second screen 110 through the screening component 1, and the impurities mixed in the target material are separated from the low end of the second guide groove 111. That is, the impurities in the two screenings are all gathered in the second guide groove 111. The screening component 1 has a compact structure, which is conducive to the miniaturization of screening equipment.

[0026] It is easy to understand that when the screening component 1 is in use, the first screen 100, the first guide groove 101, the second screen 110 and the second guide groove 111 can be installed on the external structure in the above-mentioned vertical order, so that the screening component 1 can work normally; it is not limited whether there is a connection and support relationship between the first screen 100, the first guide groove 101, the second screen 110 and the second guide groove 111.

[0027] In addition, refer to Figure 3 The first screen 100 and the first guide groove 101 are inclined in the same direction, the second screen 110 and the second guide groove 111 are inclined in the same direction, and the first screen 100 and the second screen 110 are inclined in opposite directions.

[0028] To make the screening assembly 1 work more efficiently, a vibration generating device can also be installed in the screening assembly 1.

[0029] For example, refer to Figure 3 The first screen 100 and the first guide groove 101 are disposed on the first frame 10, and the second screen 110 and the second guide groove 111 are disposed on the second frame 11. Both the first frame 10 and the second frame 11 are provided with vibration generating devices. It is known that at this time, both the first frame 10 and the second frame 11 are supported on the external structure by elastic support structures. The specific arrangement of the above-mentioned elastic support structures and vibration generating devices will not be described in detail here.

[0030] The first frame 10 is provided with a first opening 102 and a second opening 103. The first opening 102 is used to discharge the material on the screen of the first screen 100, and the second opening 103 is used to discharge the material under the screen of the first screen 100.

[0031] Reference Figure 3 In the top view when the screening assembly 1 is in use, the first screen 100 has a first extension 1000 extending beyond the lower end of the first guide groove 101, that is, the lower end of the first guide groove 101 is blocked by the first extension 1000. At this time, the first opening 102 is located outside the first extension 1000, while the second opening 103 is blocked below the first extension 1000. Meanwhile, the second guide groove 111 also has a second extension 1110 extending beyond the upper end of the second screen 110.

[0032] When the screening assembly 1 is in operation, the first extension 1000 and the second extension 1110 are connected through the first opening 102, and the lower end of the first guide groove 101 is connected to the higher end of the second screen 110 through the second opening 103. The oversize material of the first screen 100 rolls into the first opening 102 along the lower end and falls accurately into the higher end of the second guide groove 111 below. At the same time, the second opening 103 can accurately guide the undersize material of the first screen 100 to the higher end of the second screen 110 below.

[0033] In one embodiment, to prevent the oversize and undersize materials of the first screen 100 from mixing when passing through the first opening 102 and the second opening 103, a partition structure may be provided between the first opening 102 and the second opening 103.

[0034] For example, to prevent the oversize and undersize materials of the first screen 100 from mixing during the falling process, refer to Figure 3 The first frame 10 is also provided with a first partition 104 located between the first opening 102 and the second opening 103. The first partition 104 separates the first opening 102 and the second opening 103. At the same time, the upper end of the first partition 104 abuts against the lower end of the first screen 100.

[0035] For example, refer to Figure 3 To prevent the materials discharged from the first opening 102 and the second opening 103 from mixing, a second partition 112 extending upward to the space between the first opening 102 and the second opening 103 is provided at the high end of the second screen 110.

[0036] Reference Figure 3 In the top view of the screening assembly 1, the second screen 110 has a third extension 1100 extending beyond the lower end of the second guide groove 111. The second frame 11 is provided with a third opening 113 located outside the third extension 1100 and a fourth opening 114 covering the lower part of the third extension 1100. The third opening 113 communicates with the lower end of the second screen 110, and the fourth opening 114 communicates with the lower end of the second guide groove 111. The third opening 113 is used to discharge the oversize material of the second screen 110, and the fourth opening 114 is used to discharge the undersize material of the second screen 110 and the oversize material of the first screen 100 that are gathered in the second guide groove 111.

[0037] In one embodiment, reference is made to Figure 3 To prevent the material on the second screen 110 from mixing with the material in the second guide trough 111 during the discharge process, the second frame 11 is also provided with a third partition 115 located between the third opening 113 and the fourth opening 114. The upper end of the third partition 115 abuts against the lower end of the second screen 110.

[0038] In the above embodiments, the screening component 1 may be provided with any one or more of the first partition 104, the second partition 112 and the third partition 115.

[0039] Among them, the screening component 1 can be applied to various industries such as mining, medicinal material processing and grain processing.

[0040] For example, taking grain impurity removal as an example, when the above-mentioned screening component 1 screens grain, the material on the first screen 100 is impurities such as stones larger than grain particles, and the material under the first screen 100 is grain particles mixed with sand and gravel; the material under the second screen 110 after the grain particles mixed with sand and gravel are impurities such as sand and gravel smaller than grain particles, and the material on the second screen 110 is the cleaned grain particles, while the stones and sand and gravel can be separated along the lower end of the second guide groove 111.

[0041] In addition, this utility model also provides a cleaning machine, which is equipped with the above-mentioned screening component 1. This cleaning machine can be applied to various industries such as mining, medicinal material processing and grain processing.

[0042] For example, refer to Figure 4 When the impurity remover is used for grain impurity removal, two sets of weighing devices 4 are also provided in the impurity remover. That is, the impurity remover is also provided with a first weighing device and a second weighing device. The first weighing device is used to weigh the weight of the material (grain particles) on the second screen 110, and the second weighing device is used to weigh the weight of the material on the first screen 100 and the material under the second screen 110. That is, the second weighing device is used to weigh the weight of the impurities after screening.

[0043] For example, refer to Figure 5 The weighing device 4 includes a receiving hopper 40, a gate 41 and a weighing sensor 42 are arranged below the receiving hopper 40, and the weighing device 4 is also equipped with a photoelectric sensor 43 for detecting the opening and closing state of the gate 41. In use, the material falls into the receiving hopper 40 of the corresponding weighing device 4 for weighing. After weighing is completed, the motor drives the gate 41 to open and discharge the material.

[0044] The weight ratio of impurities in grain particles can be easily obtained using the two sets of weighing devices 4 described above.

[0045] In one embodiment, when the impurity remover is used for grain impurity removal, the impurity remover is also provided with an air separation device 2 located above the screening component 1, which can remove light impurities in the grain by air separation before the screening component 1 is working.

[0046] Grain particles containing impurities are fed into the air separation device 2 through the feed inlet 3. After the air separation device 2 removes light impurities, the grain particles containing impurities enter the screening component 1 below to remove particulate impurities such as pebbles and gravel. Finally, the impurities and grain particles after being screened by the screening component 1 are weighed by a set of weighing devices 4 to obtain the weight ratio of impurities in the grain.

[0047] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0051] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A screening component, characterized in that, It includes a first screen, a first guide groove, a second screen, and a second guide groove, which are arranged at an inclination from top to bottom; The mesh size of the first screen is larger than that of the second screen; The first guide channel is used to collect the undersize material from the first screen; the lower end of the first guide channel is located above the higher end of the second screen to guide the undersize material from the first screen onto the second screen. The second guide groove is used to collect the undersize material of the second screen, and the high end of the second guide groove extends below the low end of the first screen to collect the oversize material of the first screen.

2. The screening component according to claim 1, characterized in that, The first screen and the first guide groove are disposed on the first frame, and the second screen and the second guide groove are disposed on the second frame. Both the first frame and the second frame are provided with vibration generating devices.

3. The screening component according to claim 2, characterized in that, In a top view, the first screen has a first extension extending beyond the lower end of the first guide groove, and the first frame has a first opening outside the first extension and a second opening that covers the lower part of the first extension; the second guide groove has a second extension extending beyond the upper end of the second screen. The first extension and the second extension are connected through the first opening; the lower end of the first guide groove is connected to the upper end of the second screen through the second opening.

4. The screening assembly of claim 3, wherein, The first frame is also provided with a first partition located between the first opening and the second opening, and the upper end of the first partition abuts against the lower end of the first screen.

5. The screening component according to claim 3 or 4, characterized in that, The high end of the second screen is also provided with a second partition extending upward to the space between the first opening and the second opening.

6. The screening component according to claim 3, characterized in that, In a top view, the second screen has a third extension extending beyond the lower end of the second guide groove, and the second frame has a third opening located outside the third extension and a fourth opening that covers the lower part of the third extension. The third opening communicates with the lower end of the second screen, and the fourth opening communicates with the lower end of the second guide groove.

7. The screening component according to claim 6, characterized in that, The second frame is also provided with a third partition located between the third opening and the fourth opening, and the upper end of the third partition abuts against the lower end of the second screen.

8. A cleaning machine, characterized in that, The impurity removal machine is equipped with a screening component as described in any one of claims 1 to 7.

9. The impurity removal machine according to claim 8, characterized in that, The impurity removal machine is also equipped with a first weighing device and a second weighing device; The first weighing device is used to weigh the material on the second screen, and the second weighing device is used to weigh the material on the first screen and the material under the second screen.

10. The impurity removal machine according to claim 8, characterized in that, The impurity removal machine is also equipped with an air separation device located above the screening assembly.

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