Blowing assembly for color sorter and color sorter

Abstract

The utility model discloses a blowing assembly for a color sorter and the color sorter. The blowing assembly comprises an air inlet shell, an air inlet channel is formed in the air inlet shell, an air inlet is formed in the end of the air inlet channel, and an air outlet for communicating the air inlet channel with the outside is formed in the surface of the air inlet shell; the first flow blocking piece is arranged on the air inlet shell, the first flow blocking piece is used for blocking airflow from flowing out of the air outlet, and the flow blocking capacity of the first flow blocking piece in the direction away from the air inlet is gradually increased; and the second flow blocking piece is contained in the air inlet channel, the second flow blocking piece is used for blocking airflow from flowing in the air inlet channel, and the flow blocking capacity of the second flow blocking piece in the direction away from the air inlet is gradually reduced. According to the air blowing assembly, the first flow blocking piece and / or the second flow blocking piece are / is arranged in the air inlet channel so that the airflow circulation resistance in the air inlet channel can be adjusted, and the air outlet amount of the multiple air outlets can be more uniform.

Description

TECHNICAL FIELD

[0001] The utility model relates to a color sorter technical field especially is related to a kind of blowing assembly and color sorter for color sorter. BACKGROUND

[0002] In the related art, the blowing mechanism of the color sorter is mainly used for the discharging position of the vibrator of the color sorter, and the dust and shell of the material are blown. The wind power distribution in each channel is uneven, and the wind power of the outlet near the air inlet end is different from that of the outlet far from the air inlet end, thereby affecting the dust and shell effect of the material, and also affecting the falling trajectory of the material. Therefore, how to optimize the structure of the blowing mechanism, adjust the uniformity of wind power, and improve the dust and shell effect has become a problem to be solved in the field. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in the prior art. Therefore, one purpose of the utility model is to provide a blowing assembly for a color sorter. The blowing assembly of the present application adjusts the airflow flow resistance inside the air inlet channel by providing a first flow resistance member and / or a second flow resistance member inside the air inlet channel, so that the air outlet quantity of the plurality of air outlets is more uniform.

[0004] The utility model further provides a color sorter with the above blowing assembly.

[0005] The blowing assembly for a color sorter according to the utility model comprises: an air inlet shell, the air inlet channel is formed inside the air inlet shell, the air inlet channel end forms an air inlet, and the surface of the air inlet shell is formed with an air outlet that communicates the air inlet channel with the outside; a first flow resistance member, the first flow resistance member is arranged in the air inlet shell, the first flow resistance member is used to hinder airflow from flowing out of the air outlet, and the flow resistance ability of the first flow resistance member gradually increases in the direction away from the air inlet; and / or a second flow resistance member, the second flow resistance member is accommodated in the air inlet channel, the second flow resistance member is used to hinder airflow from flowing inside the air inlet channel, and the flow resistance ability of the second flow resistance member gradually decreases in the direction away from the air inlet.

[0006] The first flow resistance member is adapted to hinder the airflow from flowing out of the air outlet, and the flow resistance of the first flow resistance member gradually increases in the direction away from the air inlet, so that the airflow is more likely to flow out of the air outlet close to the air inlet, thereby balancing the air outlet amount of the air outlet at the end portion and the middle position.

[0007] According to some embodiments of the present application, the first flow resistance member is accommodated in the air inlet shell, and the first flow resistance member is formed with a plurality of flow guide holes opposite to the air outlet, and the cross-sectional area of the plurality of flow guide holes gradually decreases in the direction away from the air inlet and / or the density of the flow guide holes gradually decreases.

[0008] According to some embodiments of the present application, the air inlet shell is provided with an air inlet at each end in the extension direction, and the air inlet shell is provided with the air outlet on the side wall; the first flow resistance member is configured as a first flow resistance plate, and the first flow resistance plate is arranged opposite to the side wall of the air inlet shell and is formed with the flow guide hole penetrating in the thickness direction.

[0009] According to some embodiments of the present application, the flow guide hole is configured as a strip-shaped hole extending away from the air inlet, and the width of the strip-shaped hole adjacent to the air inlet side of the two adjacent strip-shaped holes is greater than the width of the other strip-shaped hole.

[0010] According to some embodiments of the present application, the width of at least one flow guide hole at one end close to the air inlet is greater than the width of the flow guide hole at one end away from the air inlet.

[0011] According to some embodiments of the present application, the second flow resistance member is configured as a second flow resistance plate and is arranged opposite to the air inlet in the airflow direction, and the second flow resistance plate is formed with a flow resistance hole; wherein the second flow resistance plate is configured as a plurality of plates, and the distance between at least two adjacent second flow resistance plates increases in the direction away from the air inlet; and / or the opening rate of the second flow resistance plate close to the air inlet side of the two adjacent second flow resistance plates is not greater than the opening rate of the other second flow resistance plate.

[0012] According to some embodiments of the present application, the density of the flow resistance holes on the second flow resistance plate far from the air inlet side of the at least two second flow resistance plates is greater than the density of the flow resistance holes on the other second flow resistance plate; and / or the density of the flow resistance holes on the second flow resistance plate far from the air inlet side of the at least two second flow resistance plates is greater than the cross-sectional area of the flow resistance holes on the other second flow resistance plate.

[0013] According to some embodiments of the present application, the plurality of second flow resistance plates are arranged in parallel with each other in the air inlet channel, and the density of the second flow resistance plates gradually decreases in the direction away from the air inlet.

[0014] According to some embodiments of the present application, the air inlet shell comprises: a shell body, the shell body is configured as a cylindrical shape and defines the air inlet channel inside, and the two ends of the shell body form the air inlet respectively, and one side surface of the shell body forms the air outlet.

[0015] According to some embodiments of the present application, the air blowing assembly further comprises: a blowing nozzle, the blowing nozzle is arranged on the air inlet shell and connected with the air outlet.

[0016] According to some embodiments of the present application, the air blowing assembly further comprises: a uniform air plate, the uniform air plate is arranged on the blowing nozzle and the uniform air plate is formed with uniform air holes for airflow passing through, and the uniform air holes are configured as strip-shaped holes or circular holes arranged at intervals.

[0017] The color sorter according to another aspect of the present application will be described briefly below.

[0018] The color sorter according to the present application has the air blowing assembly according to any one of the above embodiments, so that the air blowing assembly according to the present application is more uniform in air outlet amount, accurate in air outlet direction, and better in soot blowing and shell blowing effect.

[0019] Additional aspects and advantages of the present application will be described in part in the description that follows, and will become apparent in the description that follows, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of embodiments, taken in conjunction with the accompanying drawings, in which:

[0021] Figure 1 is a sectional view of the air blowing assembly according to some embodiments of the present application;

[0022] Figure 2 is a back structure view of the air blowing assembly according to some embodiments of the present application;

[0023] Figure 3 is an air outlet structure of a blowing assembly according to some embodiments of the present application;

[0024] Figure 4 is a first baffle structure diagram of a blowing assembly according to some embodiments of the present application;

[0025] Figure 5 is a second baffle structure diagram of a blowing assembly according to some embodiments of the present application;

[0026] Figure 6 is a matching schematic diagram of a first wind blocking piece and a second wind blocking piece and an air inlet shell of a blowing assembly according to some embodiments of the present application.

[0027] Reference signs:

[0028] Blowing assembly 1;

[0029] Air inlet shell 11, air inlet channel 111, air inlet 112, air outlet 113; blowing nozzle 12;

[0030] First flow resistance plate 13, flow guide hole 131, second flow resistance plate 14;

[0031] Air uniformizing plate 15, air uniformizing hole 151. DETAILED DESCRIPTION

[0032] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0033] In the related art, the blowing mechanism of the color sorter is mainly used for the discharging position of the vibrator of the color sorter, and performs dust blowing and shell blowing on the material. The wind power distribution in each channel is uneven, and there is a difference between the wind power of the air outlet close to the air inlet end and the wind power of the outlet far from the air inlet end, thereby affecting the dust blowing and shell blowing effect of the material, and also affecting the falling trajectory of the material. Therefore, how to optimize the structure of the blowing mechanism, adjust the uniformity of the wind power, and improve the dust blowing and shell blowing effect has become a problem to be solved in the field.

[0034] The following refers to Figures 1-6 The blowing assembly for the color sorter according to the embodiments of the present application is described.

[0035] The blowing assembly 1 for the color sorter according to the utility model comprises: an air inlet shell 11, an air inlet channel 111 is formed inside the air inlet shell 11, an air inlet 112 is formed at the end of the air inlet channel 111, and an air outlet 113 for connecting the air inlet channel 111 with the outside is formed on the surface of the air inlet shell 11; a first flow resistance part, the first flow resistance part is arranged in the air inlet shell 11, the first flow resistance part is used for resisting the flow of air from the air outlet 113, and the flow resistance of the first flow resistance part gradually increases in the direction away from the air inlet 112; and / or a second flow resistance part, the second flow resistance part is arranged in the air inlet channel 111, the second flow resistance part is used for resisting the flow of air in the air inlet channel 111, and the flow resistance of the second flow resistance part gradually decreases in the direction away from the air inlet 112.

[0036] Specifically, the air inlet channel 111 is formed inside the air inlet shell 11, the air inlet 112 is arranged at both ends of the air inlet channel 111, and is used for introducing external air flow; the air flow passes through the air inlets 112 at both ends of the air inlet shell 11 to the middle part of the air inlet shell 11; the air outlet 113 for connecting the air inlet channel 111 with the outside is formed on the surface of the air inlet shell 11, the air outlet 113 is arranged at intervals, the air flow passes through the air outlets 113 to flow out, and the air flow is used for blowing ash and shell of materials; since the air flow resistance in the air inlet channel 111 is small, the air flow can pass through the air inlet channel 111 from both ends to the middle position; at this time, the air flow blown in by one end air inlet meets the air flow blown in by the other end air inlet, so that the flow resistance in the air inlet channel 111 increases, the air flow is more likely to flow out from the middle position of the air inlet channel 111, and the air outlet of the middle position of the air inlet channel 111 is larger; therefore, the first flow resistance part is arranged inside the air inlet shell 11, the first flow resistance part is used for resisting the flow of air from the air outlet 113, and the flow resistance of the first flow resistance part gradually increases in the direction away from the air inlet 112; that is, the flow resistance of the first flow resistance part gradually increases near the middle position of the air inlet channel 111, the flow resistance of the middle position is increased, the air outlet of the middle position is reduced, the air flow is more likely to flow out from the air outlet 113 near the end, and the air outlets of the air outlets 113 are more uniform; during the air outlet process of the air flow through the air outlet 113, the air outlet direction near the end of the air inlet shell 11 is easy to deflect to the middle position, so the second flow resistance part can be arranged in the air inlet channel 111, the flow resistance of the second flow resistance part gradually decreases in the direction away from the end air inlet 112, that is, the flow resistance of the end of the air inlet channel 111 is increased through the second flow resistance part, the air flow in the air inlet channel 111 is more likely to flow out from the air outlet 113 away from the end, and the air outlet direction is prevented from being inclined. The first flow resistance part can be used alone or simultaneously to achieve the effects of uniform air volume and air direction adjustment.

[0037] The blowing assembly 1 for the color sorter according to the utility model is provided with the first flow resistance member and / or the second flow resistance member inside the air inlet channel 111 to adjust the air flow circulation resistance inside the air inlet channel 111, wherein the first flow resistance member is adapted to hinder the air flow from the air outlet 113, the flow resistance capacity of the first flow resistance member gradually increases in the direction away from the air inlet 112, so that the air flow circulation resistance is greater near the middle position of the air inlet channel 111, and the air flow is more likely to flow out of the air outlet 113 near the air inlet 112 to balance the air outlet volume of the air outlet 113 at the end and the middle position; the second flow resistance member is used for hindering the air flow inside the air inlet channel 111, and the flow resistance capacity of the second flow resistance member gradually decreases in the direction away from the air inlet 112, so that the air flow circulation resistance gradually decreases in the direction away from the air inlet 112 inside the air inlet channel 111, the air outlet resistance of the air outlet 113 at the end is greater, and the air flow is more likely to flow to the middle position, thereby avoiding the air flow from the air outlet 113 near the end, and avoiding the air outlet direction from being inclined.

[0038] According to some embodiments of the utility model, the first flow resistance member is accommodated in the air inlet shell 11, the first flow resistance member is formed with a plurality of flow guide holes 131 opposite to the air outlet 113, and the cross-sectional area of the plurality of flow guide holes 131 gradually decreases in the direction away from the air inlet 112 and / or the density of the flow guide holes 131 gradually decreases.

[0039] Specifically, a plurality of flow guide holes 131 opposite to the air outlet 113 are formed on the first flow resistance member, the cross-sectional area of the flow guide holes 131 gradually decreases in the direction away from the air inlet 112, and the cross-sectional area of the flow guide holes 131 is smaller and smaller near the middle position of the air inlet channel 111, thereby increasing the resistance when the air flows out, helping to slow down the air flow speed, reducing the air outlet volume of the air outlet 113 at the middle position, and making the air more likely to flow out of the air outlet 113 at the end, thereby balancing the air outlet volumes of the plurality of air outlets 113. Meanwhile, the air outlet volume can also be adjusted by changing the distribution density of the plurality of flow guide holes 131, and the distribution density of the plurality of flow guide holes 131 gradually decreases in the direction away from the air inlet 112, that is, the number of flow guide holes 131 on the first flow resistance member is reduced to reduce the air outlet volume of the air outlet 113 at the middle position, thereby balancing the air outlet volumes of the air outlet 113 at the end and the middle position, making the air outlet volumes of the plurality of air outlets 113 more uniform, and improving the color selection effect of the blowing assembly 1 on the material.

[0040] According to some embodiments of the utility model, the air inlet shell 11 is provided with the air inlet 112 at both ends in the extension direction, the side wall of the air inlet shell 11 is provided with the air outlet 113; the first flow resistance member is constructed as a first flow resistance plate 13, the first flow resistance plate 13 is opposite to the side wall of the air inlet shell 11 and is formed with the flow guide hole 131 penetrating in the thickness direction.

[0041] Specifically, the air inlet shell 11 is provided with air inlets 112 at both ends in the extension direction (i.e. the length direction of the air inlet shell 11), and air flows into the air inlet channel 111 from both ends at the same time, thereby improving the blowing efficiency; the air outlet 113 is arranged on the side wall of the air inlet shell 11, and the air outlet 113 is configured as a plurality of air outlets arranged on the side wall in the extension direction of the air inlet shell 11, and air flows out of the air inlet channel 111 through the plurality of air outlets 113 and acts on the material in the color sorter to improve the blowing efficiency of the material. The first flow resistance member is configured as a first flow resistance plate 13, and the first flow resistance plate 13 is arranged opposite to the side wall of the air inlet shell 11, so as to ensure that the first flow resistance plate 13 can effectively regulate the airflow flowing out of the air outlet 113. When the airflow blown in by one end of the air inlet meets the airflow blown in by the other end of the air inlet, the resistance in the air inlet channel 111 increases, and the airflow is more likely to flow out from the middle position of the air inlet channel 111, and the air outlet of the middle position of the air inlet channel 111 is larger, and the flow guide hole 131 penetrating in the thickness direction is formed on the first flow resistance plate 13. By adjusting the cross-sectional area and distribution density of the flow guide hole 131, when the airflow enters the air inlet channel 111 from the air inlet 112 and flows out through the flow guide hole 131, the airflow is blocked by the first flow resistance plate 13, the air outlet of the air outlet 113 at the middle position is reduced, and the air outlet of the air outlet 113 at the end position is increased, thereby balancing the air outlet of the plurality of air outlets 113, and the blowing of the blowing assembly 1 is more uniform.

[0042] According to some embodiments of the present application, the flow guide hole 131 is configured as a strip-shaped hole extending away from the air inlet 112, and the width of the strip-shaped hole adjacent to the side of the air inlet 112 is greater than the width of the other strip-shaped hole.

[0043] Specifically, the flow guide hole 131 is configured as a strip-shaped hole extending away from the air outlet 113, and the strip-shaped hole has a simple machining process, which helps to reduce the processing cost. The strip-shaped hole is configured as a plurality of strip-shaped holes, and the width of the strip-shaped hole adjacent to the air inlet 112 is greater than the width of the strip-shaped hole away from the air inlet 112 in the two adjacent strip-shaped holes. In the direction away from the end air inlet 112, the width of the plurality of strip-shaped holes gradually decreases, the air outlet resistance of the air outlet 113 at the middle position is increased, the air outlet of the air outlet 113 at the middle position is reduced, the airflow is more likely to flow out of the air outlet 113 at the end position, and the air outlet of the plurality of flow guide holes 131 is more uniform, thereby improving the blowing effect of the blowing assembly 1.

[0044] According to some embodiments of the present application, the width of at least one flow guide hole 131 at one end close to the air inlet 112 is greater than the width of the flow guide hole 131 at the other end away from the air inlet 112.

[0045] Specifically, by adjusting the guide hole 131 close to the end air inlet 112, the width of the guide hole 131 at the end position close to the air inlet 112 is greater than the width of the guide hole 131 away from the air inlet 112, so that the air outlet area of the air outlet 113 corresponding to the guide hole 131 is larger, and the airflow is more easily discharged from the end, thereby balancing the air outlet of the air outlet 113 at the end and the middle position, and making the air outlet more uniform. The shape of the guide hole 131 close to the end air inlet 112 can be trapezoidal or rectangular, which is convenient for processing and improves the air outlet.

[0046] According to some embodiments of the present application, the second flow resistance member is configured as a second flow resistance plate 14 and is arranged opposite to the air inlet 112 in the airflow direction, and the second flow resistance plate 14 has a flow resistance hole formed thereon; wherein the second flow resistance plate 14 is configured as a plurality of plates, and the distance between at least two adjacent second flow resistance plates 14 increases in the direction away from the air inlet 112; and / or the opening rate of the second flow resistance plate 14 on the side close to the air inlet 112 is not greater than the opening rate of the other second flow resistance plate 14.

[0047] Specifically, the second flow resistance member is configured as a second flow resistance plate 14, and the second flow resistance plate 14 is configured as a plurality of plates, and each second flow resistance plate 14 is provided with a plurality of flow resistance holes, so as to increase the airflow resistance and slow down the airflow speed. The distance between at least two adjacent second flow resistance plates 14 increases in the direction away from the air inlet 112, and in the process of airflow, the distance between the two adjacent second flow resistance plates 14 gradually increases in the direction away from the end, and the flow resistance effect of the second flow resistance plate 14 gradually weakens, so that the airflow is more easily discharged from the air outlet 113 at the middle position, and the air outlet amount of the air outlet 113 at the end is reduced, and the end air outlet direction is prevented from being inclined. At the same time, by adjusting the opening rate of the second flow resistance plate 14, the flow resistance effect of the second flow resistance plate 14 is changed, and the air outlet amount can also be adjusted. Among them, in the two adjacent second flow resistance plates 14, the opening rate of the second flow resistance plate 14 on the side close to the air inlet 112 is not greater than the opening rate of the other second flow resistance plate 14. In the direction of airflow, the opening rate of the flow resistance plate gradually increases, and in the direction away from the air inlet 112, the airflow resistance gradually decreases, so that the airflow is more easily discharged from the air outlet 113 at the middle position, and the air outlet direction of the air outlet 113 at the end is prevented from being inclined.

[0048] According to some embodiments of the present application, the density of the flow resistance holes on the second flow resistance plate 14 away from the air inlet 112 is greater than the density of the flow resistance holes on the other second flow resistance plate 14; and / or the density of the flow resistance holes on the second flow resistance plate 14 away from the air inlet 112 is greater than the cross-sectional area of the flow resistance holes on the other second flow resistance plate 14.

[0049] Specifically, in the direction away from the air inlet 112, among the at least two adjacent second flow resistance plates 14, the density of the flow resistance holes on the second flow resistance plate 14 away from the air inlet 112 is greater than the density of the flow resistance holes on the second flow resistance plate 14 toward the air inlet 112, that is, the number of flow resistance holes on the second flow resistance plate 14 away from the air inlet 112 is more, so that the air flow resistance in the middle position of the air inlet channel 111 is smaller, and the air is more easily discharged from the air outlet 113 in the middle position, avoiding the inclination of the air outlet direction of the end air outlet 113. At the same time, the air flow resistance can also be changed by changing the density of the flow resistance holes on the plurality of second flow resistance plates 14. Among the at least two flow resistance plates, the density of the flow resistance holes on the flow resistance plate away from the air inlet 112 is greater than the density of the flow resistance holes on the other flow resistance plate. In the direction of air flow, the density of the flow resistance holes gradually increases, the air flow resistance is smaller, and the air is more easily discharged from the corresponding air outlet, so as to achieve the effect of balancing the air outlet volume.

[0050] According to some embodiments of the present application, the plurality of second flow resistance plates 14 are arranged in parallel to each other in the air inlet channel 111, and the density of the second flow resistance plates 14 gradually decreases in the direction away from the air inlet 112.

[0051] Specifically, in the direction away from the air inlet 112, the distribution density of the second flow resistance plates 14 gradually decreases, so that the air flow resistance is greater at the position close to the air inlet 112 inside the air inlet channel, and the airflow is more easily flowed to the middle position and discharged from the corresponding air outlet. At the position close to the air inlet 112, more flow resistance plates provide greater air flow resistance, which helps to slow down the airflow and make it more evenly distributed, avoiding the inclination of the air outlet direction.

[0052] According to some embodiments of the present application, the air inlet shell 11 comprises: a shell body, the shell body is constructed as a cylinder and defines an air inlet channel 111 inside, and the two ends of the shell body form air inlets 112 respectively, and one side surface of the shell body forms air outlets 113.

[0053] Specifically, the shell body is constructed as a cylinder, which is conducive to increasing the air flow area and reducing the air flow resistance. The air inlet channel 111 is defined inside the shell body, and the air inlets 112 are formed at the two ends of the shell body respectively, so that the airflow can enter from both ends of the shell body at the same time, increasing the input efficiency and uniformity of the airflow. The air outlets 113 are formed on one side surface of the shell body, and the air outlets 113 are constructed as a plurality of air outlets 113, and the plurality of air outlets 113 correspond to a plurality of material channels respectively. By forming a plurality of air outlets 113 on the surface of the shell body, the blowing efficiency of the blowing assembly 1 on the material is improved, and the structure of the blowing assembly 1 is more compact.

[0054] According to some embodiments of the present application, the air blowing assembly 1 further comprises: a blowing nozzle 12, the blowing nozzle 12 is arranged on the air inlet shell 11 and connected with the air outlet 113.

[0055] Specifically, the blowing nozzle 12 is arranged on the air inlet shell 11 and configured as a plurality of one-to-one corresponding to the air outlet 113, each blowing nozzle 12 is connected with the corresponding air outlet 113, the blowing nozzle 12 can guide the airflow flowing out of the air outlet 113 to flow in a specific direction, and ensure that the airflow can be uniformly distributed on the material of the color sorter, thereby improving the color selection effect. The blowing nozzle 12 usually has a small outlet cross section, which helps to increase the flow rate while maintaining the total amount of airflow. Higher airflow velocity can more effectively blow away the material particles that do not meet the requirements, improving the accuracy and efficiency of color selection.

[0056] According to some embodiments of the present application, the air blowing assembly 1 further comprises: a uniform air plate 15, the uniform air plate 15 is arranged on the blowing nozzle 12 and the uniform air plate 15 is formed with uniform air holes 151 for airflow passing through, the uniform air holes 151 are configured as strip-shaped holes or circular holes arranged at intervals.

[0057] Specifically, the uniform air plate 15 is arranged on the blowing nozzle 12, the uniform air plate 15 can be arranged on the outlet of the blowing nozzle 12, the uniform air holes 151 arranged on the uniform air plate 15 can further uniformize the airflow passing through the blowing nozzle 12, the uniform air holes 151 are configured as strip-shaped holes or circular holes, by adjusting the size, shape and distribution of the uniform air holes 151, the flow rate and flow direction of the airflow can be controlled, the quality of color selection is improved, and by cooperating the uniform air plate 15 and the first flow resistance piece, the airflow flowing out of the air outlet 113 is further adjusted, so that the airflow blown out of the blowing nozzle 12 is more uniform, and the air outlet direction is adjusted, ensuring that the airflow is uniformly distributed on the material.

[0058] The color sorter according to the present application is briefly described below.

[0059] The color sorter according to the present application has the air blowing assembly 1 described in any one of the above embodiments, so that the color sorter according to the present application has the air blowing assembly 1 described in any one of the above embodiments, and the color sorter of the present application has more uniform air outlet amount for the material, accurate air outlet direction, and better soot blowing and shell blowing effect.

[0060] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0061] In the description of the utility model, "first feature", "second feature" can include one or more features.

[0062] In the description of the utility model, "multiple" means two or more.

[0063] In the description of the utility model, the "above" or "below" of the first feature to the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them.

[0064] In the description of the utility model, the "above", "upper" and "upper surface" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature.

[0065] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0066] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A blow-off assembly for a color sorter, characterized by, The application relates to an air inlet shell (11) internally forming an air inlet channel (111) with an air inlet opening (112) at the end, and an air outlet opening (113) on the surface of the air inlet shell (11) for communicating with the outside; a first flow resistance member arranged on the air inlet shell (11) for resisting air flow from the air outlet opening (113), the flow resistance gradually increasing in the direction away from the air inlet opening (112); and / or a second flow resistance member arranged in the air inlet channel (111) for resisting air flow in the air inlet channel (111), the flow resistance gradually decreasing in the direction away from the air inlet opening (112). The first flow resistance member is arranged in the air inlet shell (11) and forms a plurality of flow guide holes (131) opposite to the air outlet opening (113), the cross-sectional area of the flow guide holes (131) gradually decreasing in the direction away from the air inlet opening (112) and / or the density of the flow guide holes (131) gradually decreasing. The air inlet shell (11) is provided with air inlet openings (112) at both ends in the extending direction, and the side wall of the air inlet shell (11) is provided with the air outlet opening (113). The first flow resistance member is configured as a first flow resistance plate (13) arranged opposite to the side wall of the air inlet shell (11) and formed with the flow guide holes (131) penetrating in the thickness direction.

2. The air blow assembly for a color sorter according to claim 1, wherein, The flow guide holes (131) are configured as strip-shaped holes extending in the direction away from the air inlet opening (112), and the width of the strip-shaped hole adjacent to the air inlet opening (112) is greater than that of the other strip-shaped hole.

3. The air blow assembly for a color sorter according to claim 2, wherein, The width of at least one flow guide hole (131) at the end close to the air inlet opening (112) is greater than that at the end away from the air inlet opening (112). The second flow resistance member is configured as a second flow resistance plate (14) arranged opposite to the air inlet opening (112) in the air flow direction, and the second flow resistance plate (14) is formed with flow resistance holes; wherein 4. The air blow assembly for a color sorter according to claim 3, wherein, The second flow resistance plate (14) is configured as a plurality of plates, and the distance between at least two adjacent second flow resistance plates (14) increases in the direction away from the air inlet opening (112); and / or 5. The air blow assembly for a color sorter according to claim 3, wherein, The opening rate of the second flow resistance plate (14) adjacent to the air inlet opening (112) is not greater than that of the other second flow resistance plate (14).

6. The air blow assembly for a color sorter according to claim 1, wherein, The density of the flow resistance holes on the second flow resistance plate (14) away from the air inlet opening (112) is greater than that on the other second flow resistance plate (14); and / or The second flow resistance plate (14) is configured as a plurality of plates, and the distance between at least two adjacent second flow resistance plates (14) increases in the direction away from the air inlet opening (112); and / or The opening rate of the second flow resistance plate (14) adjacent to the air inlet opening (112) is not greater than that of the other second flow resistance plate (14).

7. The air blow assembly for a color sorter according to claim 6, wherein, The density of the flow resistance holes on the second flow resistance plate (14) away from the air inlet opening (112) is greater than that on the other second flow resistance plate (14); and / or The second flow resistance plate (14) is configured as a plurality of plates, and the distance between at least two adjacent second flow resistance plates (14) increases in the direction away from the air inlet opening (112); and / or The opening rate of the second flow resistance plate (14) adjacent to the air inlet opening (112) is not greater than that of the other second flow resistance plate (14). The density of the flow resistance holes on the second flow resistance plate (14) away from the air inlet opening (112) is greater than that on the other second flow resistance plate (14); and / or The second flow resistance plate (14) is configured as a plurality of plates, and the distance between at least two adjacent second flow resistance plates (14) increases in the direction away from the air inlet opening (112); and / or The opening rate of the second flow resistance plate (14) adjacent to the air inlet opening (112) is not greater than that of the other second flow resistance plate (14). The density of the flow resistance holes on the second flow resistance plate (14) away from the air inlet opening (112) is greater than that on the other second flow resistance plate (14); and / or The second flow resistance plate (14) is configured as a plurality of plates, and the distance between at least two adjacent second flow resistance plates (14) increases in the direction away from the air inlet opening (112); and / or The opening rate of the second flow resistance plate (14) adjacent to the air inlet opening (112) is not greater than that of the other second flow resistance plate (14). The density of the flow resistance holes on the second flow resistance plate (14) away from the air inlet opening (112) is greater than that on the other second flow resistance plate (14); and / or The second flow resistance plate (14) is configured as a plurality of plates, and the distance between at least two adjacent second flow resistance plates (14) increases in the direction away from the air inlet opening (112); and / or The opening rate of the second flow resistance plate (14) adjacent to the air inlet opening (112) is not greater than that of the other second flow resistance plate (14). The density of the flow resistance holes on the second flow resistance plate (14) away from the air inlet opening (112) is greater than that on the other second flow resistance plate (14); and / or The second flow resistance plate (14) is configured as a plurality of plates, and the distance between at least two adjacent second flow resistance plates (14) increases in the direction away from the air inlet opening (112); and / or The opening rate of the second flow resistance plate (14) adjacent to the air inlet opening (112) is not greater than that of the other second flow resistance plate (14). The density of the flow resistance holes on the second flow resistance plate (14) away from the air inlet opening (112) is greater than that on the other second flow resistance plate (14); and / or The second flow resistance plate (14) is configured as a plurality of plates, and the distance between at least two adjacent second flow resistance plates (14) increases in the direction away from the air inlet opening (112); and / or The opening rate of the second flow resistance plate (14) adjacent to the air inlet opening (112) is not greater than that of the other second flow resistance plate (14). The density of the flow resistance holes on the second flow resistance plate (14) away from the air inlet opening (112) is greater than that on the other second flow resistance plate (14); and / or The second flow resistance plate (14) is configured as a plurality of plates, and the distance between at least two adjacent second flow resistance plates (14) increases in the direction away from the air inlet opening (112); and / or The opening rate of the second flow resistance plate (14) adjacent to the air inlet opening (112) is not greater than that of the other second flow resistance plate (14). The density of the flow resistance holes on the second flow resistance plate (14) away from the air inlet opening (112) is greater than that on the other second flow resistance plate (14); and / or The second flow resistance plate (14) is configured as a plurality of plates, and the distance between at least two adjacent second flow resistance plates (14) increases in the direction away from the air inlet opening (112); and / or The opening rate of the second flow resistance plate (14) adjacent to the air inlet opening (112) is not greater than that of the other second flow resistance plate (14). The density of the flow resistance holes on the second flow resistance plate (14) away from the air inlet opening (112) is greater than that on the other second flow resistance plate (14); and / or The second flow resistance plate (14) is configured as a plurality of plates, and the distance between at least two adjacent second flow resistance plates (14) increases in the direction away from the air inlet opening (112); and / or The opening rate of the second flow resistance plate (14) adjacent to the air inlet opening (112) is not greater than that of the other second flow resistance plate (14). The density of the flow resistance holes on the second flow resistance plate (14) away from the air inlet opening (112) is greater than that on the other second flow resistance plate (14); and / or The second flow resistance plate (14) is configured as a plurality of plates, and the distance between at least two adjacent second flow resistance plates (14) increases in the direction away from the air inlet opening (112); and / or The opening rate of the second flow resistance plate (14) adjacent to the air inlet opening (112) is not greater than that of the other second flow resistance plate (14). The density of the flow resistance holes on the second flow resistance plate (14) away from the air inlet opening (112) is greater than that on the other second flow resistance plate (14); and / or The second flow resistance plate (14) is configured as a plurality of plates, and the distance between at least two adjacent second flow resistance plates (14) increases in the direction away from the air inlet opening (112); and / or The opening rate of the second flow resistance plate (14) adjacent to the air inlet opening (112) is not greater than that of the other second flow resistance plate (14). The density of the flow resistance holes on The density of the flow resistance holes on the second flow resistance plate (14) far from the air inlet (112) is greater than the cross-sectional area of the flow resistance holes on the other second flow resistance plate (14).

8. The air blow assembly for a color sorter according to claim 6, wherein, The plurality of second flow resistance plates (14) are arranged in parallel with each other in the air inlet channel (111), and the density of the second flow resistance plates (14) gradually decreases in the direction away from the air inlet (112).

9. The air blow assembly for a color sorter according to any one of claims 2-7, wherein, The air inlet shell (11) comprises: A shell body configured in a cylindrical shape and defining the air inlet channel (111) inside, and two ends of the shell body form the air inlet (112) respectively, and one side surface of the shell body forms the air outlet (113).

10. The air blow assembly for a color sorter according to claim 8, wherein, Further comprising: A blowing nozzle (12) arranged on the air inlet shell (11) and connected with the air outlet (113).

11. The air blow assembly for a color sorter according to claim 10, wherein, Further comprising: An air uniformizing plate (15) arranged on the blowing nozzle (12), and the air uniformizing plate (15) is formed with air uniformizing holes (151) for airflow passing through, and the air uniformizing holes (151) are configured as strip-shaped holes or circular holes arranged at intervals.

12. A color sorter characterized by comprising: The blowing assembly comprises the blowing assembly according to any one of claims 1-11.

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