Dustproof nozzle device, blowing device and sorting machine

Abstract

The utility model relates to the field of material sorting, in particular to a dustproof nozzle device, a blowing device and a sorter, the dustproof nozzle device is applied to the sorter, the dustproof nozzle device comprises a gas outlet channel which is of a tubular structure and is obliquely arranged in the sorter, and a gas inlet for gas to enter is formed in the lower end of the gas outlet channel; a gas outlet for discharging gas is formed in the upper end of the gas outlet channel; the dust falling channel is of a tubular structure, the upper end of the dust falling channel communicates with the lower side of the middle of the air outlet channel and extends towards the lower portion of the air outlet channel, the upper end of the dust falling channel is used for receiving dust entering from the air inlet, and the lower end of the dust falling channel is used for discharging the dust. According to the dust-proof nozzle device, dust in the air outlet channel can effectively fall into the dust falling channel and is discharged, the dust-proof nozzle device not only can discharge air, but also can discharge the dust, the dust is prevented from being accumulated and blocked at the nozzle opening, and the sorting efficiency and precision are improved conveniently.

Description

Technical Field

[0001] The present disclosure relates to the field of material sorting, and in particular to a dust-proof nozzle device, a blowing device, and a sorting machine. Background Art

[0002] In some material sorting scenarios, mining sorters usually work in dusty environments. Ore and other materials will generate a lot of dust during transportation or sorting. The nozzle opening faces upward, which makes it easy for a lot of dust to fall in, causing pipeline blockage, resulting in poor air outlet from the nozzle and reduced sorting efficiency and accuracy. Utility Model Content

[0003] In order to overcome the problems existing in the related art, the first aspect of the exemplary embodiment of the present disclosure provides a dust-proof nozzle device, which is applied to a sorting machine, wherein the dust-proof nozzle device includes: an air outlet channel, which is a tubular structure and is obliquely arranged in the sorting machine, the lower end of the air outlet channel forms an air inlet for entering gas, and the upper end of the air outlet channel forms an air outlet for exhausting gas; a dust collection channel, which is a tubular structure, the upper end of the dust collection channel is connected to the lower side of the middle part of the air outlet channel, and extends downwardly of the air outlet channel, the upper end of the dust collection channel is used to receive dust entering from the air inlet, and the lower end of the dust collection channel is used to discharge the dust.

[0004] In some embodiments, the dust-proof nozzle device further includes: a sealed cavity, which is in communication with the lower end of the dust-falling channel and is used to receive and store the dust.

[0005] In some embodiments, the dust-proof nozzle device further includes: a shell, the upper portion of which forms the air outlet channel and the dust falling channel, and the lower portion of which forms a sealed cavity.

[0006] In some embodiments, a card slot is formed at the bottom of the shell and in the sealed cavity; the dust-proof nozzle device also includes: a sealing plate, which is a plate-shaped structure and is detachably connected to the card slot, and is used to seal the sealed cavity when the sealing plate is in a closed state, and is used to discharge the dust when the sealing plate is in an open state.

[0007] In some embodiments, the distance between the upper end of the dust collection channel and the air outlet is greater than or equal to 10 mm.

[0008] In some embodiments, the dust collection channel is at an angle of 0-45 degrees to the vertical direction.

[0009] In some embodiments, the angle between the dust collection channel and the air outlet channel is less than or equal to 90 degrees.

[0010] In some embodiments, the dust-proof nozzle device also includes: a baffle, which is obliquely arranged at the upper end of the dust collection channel and is located on the side away from the air outlet, the bottom edge of the baffle is connected to the inner wall of the air outlet channel, and the baffle extends into the air outlet channel and in the air outlet direction.

[0011] In the second aspect, the present disclosure also provides a blowing device, wherein the blowing device includes: an air source; an air exchange valve connected to the air source for controlling and regulating the flow of gas; the dust-proof nozzle device as described in the first aspect, the air inlet of the air outlet channel is connected to the air exchange valve for spraying gas; a sealing ring for sealing the connection between the air inlet of the air outlet channel and the air exchange valve.

[0012] In a third aspect, the present disclosure further provides a sorting machine for sorting materials, wherein the sorting machine includes: a belt transmission device for conveying materials; an identification device for identifying the materials conveyed by the belt transmission device to obtain the category of the materials; and a blowing device as described in the second aspect, for sorting the materials according to the category of the materials.

[0013] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0014] The present disclosure provides a dust-proof nozzle device, a blowing device and a sorting machine, wherein the dust-proof nozzle device sets an air outlet channel and a dust collection channel, and sets the air outlet channel at an angle, which can not only ensure that the gas is effectively discharged, but also make it easier for dust to settle in the dust collection channel; the upper end of the dust collection channel is connected with the lower side of the middle part of the air outlet channel, so that the dust in the air outlet channel effectively falls into the dust collection channel and the dust is discharged, so that the dust-proof nozzle device can not only discharge air, but also discharge dust, avoiding dust accumulation and clogging at the nozzle mouth, and facilitating the improvement of sorting efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present disclosure may be better understood by describing exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, in which:

[0016] Figure 1 is a schematic diagram of the related technology;

[0017] Figure 2 is a schematic diagram of a dust-proof nozzle device according to an exemplary embodiment of the disclosure;

[0018] Figure 3 is a schematic diagram of a dust prevention nozzle device according to another disclosed exemplary embodiment;

[0019] Figure 4 is a perspective view of a blowing device according to an exemplary embodiment of the disclosure;

[0020] Figure 5 is a schematic diagram of a dust prevention nozzle device according to another disclosed exemplary embodiment;

[0021] Figure 6 is a perspective view of a blowing device according to another disclosed exemplary embodiment. DETAILED DESCRIPTION

[0022] The specific embodiments of the present disclosure will be described below. It should be noted that in the specific description of these embodiments, in order to provide a concise description, this specification cannot provide a detailed description of all the features of the actual embodiments. It should be understood that in the actual implementation of any embodiment, just as in the process of any engineering project or design project, in order to achieve the specific goals of the developer and to meet system-related or business-related restrictions, various specific decisions are often made, and this will also change from one embodiment to another. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for ordinary technicians in the field related to the content disclosed by this utility model, some design, manufacturing or production changes based on the technical content disclosed in this disclosure are just conventional technical means and should not be understood as the content of this disclosure being insufficient.

[0023] Unless otherwise defined, the technical or scientific terms used in the claims and description shall have the usual meaning understood by persons of ordinary skill in the technical field to which the utility model belongs. The words "first", "second" and similar terms used in the description and claims of the utility model patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "one" or "a" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "include" or "comprising" mean that the elements or objects appearing before "include" or "comprising" cover the elements or objects listed after "include" or "comprising" and their equivalent elements, and do not exclude other elements or objects. Words such as "connected" or "connected" and similar terms are not limited to physical or mechanical connections, nor are they limited to direct or indirect connections.

[0024] In some scenarios, the sorting machine may include: a belt transmission device, an identification device, etc. The belt transmission device can be used to transmit materials; the identification device can be used to identify the materials transported by the belt transmission device to obtain the type of materials. In some scenarios, for example, in a material sorting machine for ore sorting, there is often a large amount of dust. In some related technologies, air jet sorting often uses a simple nozzle 220, such as Figure 1As shown, when the nozzle 220 is jetting upward, the nozzle opening is easily clogged by dust in a high-dust environment, affecting the stability of the jet flow and the sorting effect.

[0025] In order to overcome the problems existing in the related art, the exemplary embodiment of the present disclosure provides a dust-proof nozzle device 100, such as Figure 2 、 Figure 3 As shown, it is applied to a sorting machine, wherein the dust-proof nozzle device 100 may include: an air outlet channel 110 and a dust falling channel 120.

[0026] The air outlet channel 110 can be a tubular structure and can be tilted in the sorting machine. The lower end of the air outlet channel 110 can form an air inlet for the gas to enter, and the upper end of the air outlet channel 110 can form an air outlet 111 for the gas to be discharged. The air outlet channel 110 can be set to a tubular structure, or a cylindrical tubular structure, which can effectively guide the gas flow, reduce the air flow resistance, and improve the efficiency and speed of the air flow. The air outlet channel 110 can be tilted in the sorting machine, and the tilt angle can be 30-60 degrees. The contact angle between the airflow and the material can be flexibly controlled by adjusting the tilt angle, thereby improving the sorting accuracy. The dust falling into the air outlet 111 can also fall down along the pipe due to the action of gravity, avoiding the accumulation of dust at the air outlet 111, causing the gate to be blocked and affecting the gas discharge. An air inlet is provided at the lower end of the air outlet channel 110, which can introduce gas into the pipeline. The size of the air inlet can be determined according to the flow rate and speed of the gas, and the diameter can be 5-15 mm to ensure sufficient airflow into the channel to avoid reduced sorting efficiency due to insufficient flow. If the air inlet is too small, the gas provided may be insufficient, resulting in low sorting efficiency; if the air inlet is too large, it may cause unnecessary waste of gas. An air outlet 111 is provided at the upper end of the air outlet channel 110, which can discharge the gas out of the pipeline. The diameter of the air outlet 111 can be 5-15 mm, which can ensure that the gas can be discharged smoothly for material sorting. If the air outlet 111 is too small, it may result in too little gas outlet and affect the sorting efficiency; if the air outlet 111 is too large, it may result in too much gas outlet and affect the sorting accuracy.

[0027] The dust collection channel 120 can be a tubular structure. The upper end of the dust collection channel 120 can be connected to the lower side of the middle part of the air outlet channel 110 and can extend downwards to the air outlet channel 110. The upper end of the dust collection channel 120 can be used to receive dust entering from the air inlet, and the lower end of the dust collection channel 120 can be used to discharge dust. The dust collection channel 120 can be set as a tubular structure, which can be a cylindrical tubular structure. The upper end of the dust collection channel 120 can be set in the middle part of the air outlet channel 110. The upper end of the dust collection channel 120 is at a certain distance from the air outlet 111 to prevent dust from floating over the upper end of the dust collection channel 120. Accumulated dust particles can fall from the air outlet 111 into the upper end of the dust collection channel 120, which can effectively remove dust. The upper end of the dust collection channel 120 is at a certain distance from the air inlet to prevent dust accumulation from clogging the air inlet, thereby ensuring the stability and efficiency of the airflow. The upper port of the dust collection channel 120 can be connected to the lower side of the air outlet channel 110, allowing dust to smoothly enter the upper port of the dust collection channel 120 due to the effect of gravity. The dust collection channel 120 can extend along the lower side of the air outlet channel 110, allowing dust to effectively settle to the bottom of the dust collection channel pipe due to the effect of gravity and be discharged. This can reduce the suspension time of dust in the air flow, improve dust removal efficiency, and facilitate subsequent collection and processing. The upper port of the dust collection channel 120 can receive dust entering from the air outlet channel. The size of the upper port can be adjusted according to the particle size and accumulation of dust. The diameter can be 10-20 mm. If the diameter of the upper port is too large, the air flow may carry away dust, resulting in poor dust prevention effect. If the diameter of the upper port is too small, it may not be easy for dust to enter. The lower port of the dust collection channel 120 can discharge dust that falls from the upper port. The size of the lower port can be 10-20 mm to ensure that dust can be discharged smoothly.

[0028] In the embodiment of the present disclosure, an air outlet channel 110 and a dust collection channel 120 of a dust-proof nozzle device 100 are provided. By tilting the air outlet channel 110, the gas can be effectively discharged, thereby improving the sorting effect, and the dust can be dropped into the dust collection channel 120 by the action of gravity; by connecting the upper end of the dust collection channel 120 with the lower side of the middle part of the air outlet channel 110, the dust received by the air inlet of the air outlet channel 110 can be dropped into the dust collection channel 120 and discharged from the lower port of the dust collection channel 120, so that the dust-proof nozzle device 100 can not only discharge gas for sorting, but also avoid dust clogging at the air outlet 111, thereby improving the sorting efficiency and facilitating the stable operation of the sorting machine.

[0029] In some embodiments, as Figure 2 、 Figure 3 、 Figure 4As shown, the dust-proof nozzle device 100 may further include: a sealed cavity 130, which may be connected to the lower end of the dust-falling channel 120 and may be used to receive and store dust. The sealed cavity 130 may be a rectangular structure, and the size of the sealed cavity 130 may be adjusted according to the amount of dust generated. The sealed cavity 130 may be provided at the lower end of the dust-falling channel 120 and connected to the lower end of the dust-falling channel 120. The size of the receiving port of the sealed cavity 130 may be consistent with the size of the lower port of the dust-falling channel 120, so as to facilitate receiving dust falling from the lower port of the dust-falling channel 120. The sealed cavity 130 may be used to store dust and effectively prevent dust from escaping again during storage. The sealed cavity 130 may be provided with a discharge device, which may be a sealing plate, etc., to facilitate regular cleaning and disposal of the collected dust. The sealed cavity 130 can ensure a certain sealing structure and good sealing performance, which not only prevents air leakage from the air outlet channel 110 and affects the sorting accuracy, but also prevents dust from leaking out of the sealed cavity 130 and preventing dust from re-suspension, thereby maintaining a stable pressure in the sealed cavity 130. In the disclosed embodiment, by providing the sealed cavity 130, dust in the dust collection channel 120 can be smoothly dropped into the sealed cavity 130, effectively collecting and storing dust, preventing dust from re-suspension, facilitating subsequent dust processing, and preventing air leakage from the air outlet channel 110 and affecting the sorting accuracy.

[0030] In some embodiments, as Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6As shown, the dust-proof nozzle device 100 also includes: a shell 140, the upper part of which can form an air outlet channel 110 and a dust collection channel 120, and the lower part of which can form a sealed cavity 130. The shell 140 can be made of corrosion-resistant and wear-resistant materials, such as stainless steel, aluminum alloy or high-strength plastic, to ensure stability and durability for long-term use. The shell 140 can be a box structure, which can form more components and realize corresponding functions. The shell 140 can form an air outlet channel 110 on the upper part by drilling or one-time molding, which is used to spray gas for sorting. The upper part of the shell 140 can also form a dust collection channel 120 by drilling or one-time molding, which is used to collect dust falling into the air outlet channel 110 and discharge the dust. The lower part of the shell 140 can be a cover structure, with a cavity formed inside, which serves as a sealed cavity 130 for temporarily storing dust. The housing 140 can be integrally formed, with an air outlet channel 110 and a dust collection channel 120 formed in the upper portion to prevent air and dust leakage. A sealed cavity 130 can be formed in the lower portion to prevent dust collected in the sealed cavity 130 from leaking, ensuring good sealing. A dust collection channel 120 can be formed inside the housing 140. The upper end of the dust collection channel 120 is connected to the air outlet channel 110, and the lower end of the dust collection channel 120 is connected to the sealed cavity 130, so that the air outlet channel 110 is separated from the sealed cavity 130 to ensure that the gas flow in the air outlet channel 110 and the dust collection area in the sealed cavity 130 do not interfere with each other, dust will not block the air outlet channel 110, and the gas ejected from the air outlet channel 110 will not affect the sealed cavity 130 from receiving dust. The shell 140 may be provided with sealing materials, such as sealing rings or gaskets, at the connection between the air outlet channel 110 and the dust collection channel 120, and at the connection between the dust collection channel 120 and the sealed cavity 130, to ensure that the air outlet channel 110 does not leak air, and the dust collection channel 120 and the sealed cavity do not leak dust. The shell 140 may be provided with a detachable cover and a cleaning port to facilitate regular cleaning and inspection. In the embodiment of the present disclosure, the dust-proof nozzle device 100 is provided with a shell 140, the air outlet channel 110 and the dust collection channel 120 are formed at the upper part of the shell 140, and the sealed cavity 130 is formed at the lower part of the shell 140, providing the air outlet channel 110, the dust collection channel 120 and the sealed cavity 130 with an environment that is structurally strong, well-sealed, and easy to operate and maintain, so as to ensure that the sorting is more efficient and reliable.

[0031] In some embodiments, as Figure 2 、 Figure 3 、 Figure 4 、 Figure 5As shown, a slot is formed between the bottom of the housing 140 and the sealed cavity 130. The dust-proof nozzle device 100 may also include a sealing plate 150, which may be a plate-shaped structure and detachably connected to the slot. When closed, the sealing plate 150 seals the sealed cavity 130 and when open, it discharges dust. The slot may be located at the bottom of the housing 140, formed within the sealed cavity 130. The height and depth of the slot can be adjusted based on the thickness and width of the sealing plate 150 to ensure smooth insertion and a secure fit. A rubber or silicone sealing strip may be added to the interior of the slot to further prevent dust from escaping the sealed cavity 130. The sealing plate 150 may be a rectangular plate-shaped structure. The thickness and width of the sealing plate 150 may match those of the slot to ensure a secure fit within the slot. The length and width of the sealing plate 150 may match those of the sealed cavity 130 to ensure complete coverage and a hermetic seal. The sealing plate 150 can be set to a sliding type, and the three sides of the sealing plate 150 can be detachably connected to the card slot respectively. When the sealing plate 150 needs to be opened and closed, the sealing plate 150 can be slid out and pushed in along the card slot. The material of the sealing plate 150 can be plastic, metal or rubber, with good durability and corrosion resistance, ensuring that it is not easy to deform during long-term use. The edge of the sealing plate 150 can be set to a shape suitable for inserting into the card slot, which facilitates the opening and closing of the sealing plate 150. When the sealing plate 150 is in the open state, the dust accumulated in the sealing chamber 130 can be discharged; when the sealing plate 150 is in the closed state, the sealing device of the sealing chamber 130 can be maintained, which can not only prevent the air outlet channel 110 from leaking air and the sealing chamber 130 from leaking dust, but also prevent the dust from being re-suspended. In the embodiment of the present disclosure, a card slot is formed at the bottom of the shell 140 and a sealing plate 150 is provided, so that the sealing plate 150 can be connected to the card slot. When the sealing plate 150 is opened, the dust accumulated in the sealed cavity 130 can be discharged; when the sealing plate 150 is closed, the sealed cavity 130 can be kept closed and the pressure can be kept stable, which can not only prevent air leakage and dust leakage, but also prevent dust from being re-suspended.

[0032] In some embodiments, the distance between the upper end of the dust channel 120 and the air outlet 111 is greater than or equal to 10 mm. A sufficient distance can be maintained between the upper end of the dust channel 120 and the air outlet 111 of the air outlet channel 110, which can be greater than or equal to 10 mm. If the upper end of the dust channel 120 is too close to the air outlet 111 of the air outlet channel 110, dust may pass over the upper end of the dust channel 120 and cannot effectively enter the dust channel 120 but accumulate in the air outlet channel 110; if the upper end of the dust channel 120 is too far away from the air outlet 111 of the air outlet channel 110, dust may partially block the air inlet of the air outlet channel and the dust channel, which will reduce the air outlet effect and reduce the sorting efficiency. In the embodiment of the present disclosure, setting a suitable distance between the upper end of the dust channel 120 and the air outlet 111 of the air outlet channel 110 can enable dust to effectively fall into the dust channel 120, improve the air outlet effect, and improve the sorting efficiency.

[0033] In some embodiments, the dust collection channel 120 can be angled at 0-45 degrees with respect to the vertical. The extension direction of the dust collection channel 120 can be set at a certain angle with respect to the vertical direction, which can be less than or equal to 45 degrees. This allows dust entering the dust collection channel 120 to fall down the dust collection channel 120 under the action of gravity and be discharged. A large angle between the dust collection channel 120 and the vertical direction is not conducive to the dust falling and being discharged. An inclined dust collection channel 120 can reduce the overall height of the dust prevention nozzle device 100 and adapt to different installation environments. The dust collection channel 120 can be set at an angle of 0 degrees with respect to the vertical direction, allowing dust to directly pass through the dust collection channel 120 under the action of gravity and be discharged or enter the sealed cavity 130. In the disclosed embodiments, setting the dust collection channel 120 at an appropriate angle with respect to the vertical direction not only allows dust to fall down and be discharged smoothly from the dust collection channel 120, but also reduces the overall height of the dust prevention nozzle device 100, rationally arranges space, and adapts to different installation environments.

[0034] In some embodiments, the angle between the dust collection channel 120 and the air outlet channel 110 may be less than or equal to 90 degrees. A certain angle may be set between the dust collection channel 120 and the air outlet channel 110, and the angle may be less than or equal to 90 degrees. By setting the angle, the dust collection channel 120 and the air outlet channel 110 can be arranged in a limited space, reducing the complexity of the internal space. If the angle between the dust collection channel 120 and the air outlet channel 110 is too large, the dust falling into the dust collection channel 120 may not fall downward due to gravity and be discharged, causing the dust to accumulate in the dust collection channel 120, making it inconvenient to clean the dust. If the angle between the dust collection channel 120 and the air outlet channel 110 is too small, the dust in the air outlet channel 110 may not fall into the dust collection channel 120. In the embodiment of the present disclosure, by setting a suitable angle between the dust collection channel 120 and the air outlet channel 110, not only can space be saved, but the dust in the air outlet channel 110 can also fall into the dust collection channel 120, and the dust can fall smoothly from the dust collection channel 120 and be effectively discharged.

[0035] In some embodiments, as Figure 3 As shown, the dust nozzle device 100 may further include: a baffle 160, which may be tilted and disposed at the upper end of the dust collection channel 120, located on a side away from the air outlet 111. The bottom edge of the baffle 160 may be connected to the inner wall of the air outlet channel 110, and the baffle 160 may extend into the air outlet channel 110 and in the direction of air outlet. The baffle 160 may be tilted and disposed on a side away from the air outlet 111 and located at the upper end of the dust collection channel 120, which may effectively guide dust to fall into the dust collection channel 120, reducing dust from falling to the side near the air inlet and clogging the air inlet, thereby improving dust collection efficiency and reducing wind resistance in the air outlet duct. The bottom edge of the baffle 160 may be connected to the inner wall of the air outlet channel 110, extending into the air outlet channel 110 and in the direction of air outlet, ensuring smooth discharge of gas without interfering with dust settling. The baffle can be 3-6 mm long and can be positioned inside the air outlet channel 110. The baffle can be made of stainless steel, a material with high strength and durability. The tilted baffle 160 can also prevent vibrations in the sorting machine, allowing dust to return from the dust collection channel 120 to the air outlet channel 110, ensuring that all dust falls into the dust collection channel 120 and is effectively discharged. In the disclosed embodiment, by positioning the baffle 160 at the upper end of the dust collection channel 120, dust can be prevented from falling into the air inlet of the air outlet channel 110 and clogging the air inlet, thereby preventing a reduction in sorting efficiency.

[0036] Based on the same inventive concept, the exemplary embodiment of the present disclosure further provides a blowing device, such as Figure 3 、 Figure 5 As shown, the blowing device may include: an air source 200, a ventilation valve 300, a dust-proof nozzle device 100 such as any one of the aforementioned embodiments, and a sealing ring 400.

[0037] The gas source 200 can provide the required air or gas pressure for spraying the material. The gas source 200 can be a compressed air device, a gas tank, or other suitable gas source.

[0038] The ventilation valve 300 can be connected to the gas source 200 to control and regulate gas flow. The ventilation valve 300 can be detachably connected to the gas source 200, allowing for the inflow and outflow of air, and can adjust the intensity and frequency of the airflow as needed. The ventilation valve can be electrically, pneumatically, or manually controlled to achieve precise airflow management.

[0039] The dust-proof nozzle device 100 can be any of the aforementioned embodiments. The air inlet of the air outlet channel 110 can be connected to the air exchange valve 300 and can be used to inject gas. The air inlet of the air outlet channel 110 can be detachably connected to the air exchange valve 300, allowing gas from the gas source 200 to enter the air outlet channel 110 through the air exchange valve 300 and be ejected from the air outlet 111 of the air outlet channel 110. The dust-proof nozzle device 100 is also provided with a dust collection channel 120, which can allow dust in the air outlet channel 110 to fall into the dust collection channel 120 and be discharged, effectively preventing the air outlet 111 of the air outlet channel 110 from being clogged.

[0040] The sealing ring 400 can be used to seal the connection between the air inlet of the air outlet channel 110 and the air exchange valve 300. The sealing ring 400 can effectively prevent gas leakage at the connection, ensuring the stability of the air flow and the overall effect of the spraying.

[0041] In the disclosed embodiment, a blowing device is provided to achieve a blowing effect in the case of high dust levels within the ore sorter. Gas is directed through the ventilation valve 300 to the dust-proof nozzle device 100, and the gas is ejected from the air outlet 111 of the dust-proof nozzle device 100. The dust-proof nozzle device 100 can drop dust from the air outlet channel 110 into the dust collection channel 120 for discharge, thereby preventing the air outlet 111 of the air outlet channel 110 from becoming clogged.

[0042] Based on the same inventive concept, an exemplary embodiment of the present disclosure further provides a sorting machine that can be used for material sorting, wherein the sorting machine may include: a belt transmission device, an identification device, such as the blowing device in the aforementioned embodiment.

[0043] A belt conveyor device is used to convey materials. The belt conveyor device can be a conveyor belt, etc., and materials can be placed on the belt conveyor device, and the belt conveyor device can convey the materials to the identification device.

[0044] The identification device can be used to identify the material conveyed by the belt transmission device to obtain the type of the material.

[0045] The blowing device can be the blowing device in the aforementioned embodiment, and can be used to sort materials according to their categories. The blowing device can be arranged downstream of the belt conveyor, and can sort materials according to their categories, so that different categories of materials are separated from each other.

[0046] In the embodiment of the present disclosure, a sorting machine is provided, which can transport materials through a belt transmission device, facilitating identification and classification by an identification device. Based on the identification device identifying and classifying materials, different types of materials are finally sorted according to the blowing device, which can accurately and quickly classify the materials to be tested, and has high identification accuracy and sorting accuracy. The dust-proof nozzle device 100 in the blowing device connects the upper end of the dust-falling channel 120 with the lower side of the middle part of the air outlet channel 110, so that the dust in the air outlet channel 110 effectively falls into the dust-falling channel 120 and discharges the dust, so that the dust-proof nozzle device 100 can not only discharge air, but also discharge dust, avoiding dust accumulation and clogging at the nozzle mouth, and facilitating improved sorting efficiency and accuracy.

[0047] This application uses specific terms to describe the embodiments of this application. For example, "one embodiment," "an embodiment," and / or "some embodiments" refer to a certain feature, structure, or characteristic associated with at least one embodiment of this application. Therefore, it should be emphasized and noted that "one embodiment," "an embodiment," or "an alternative embodiment" mentioned twice or multiple times in different locations in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application may be appropriately combined.

[0048] In the context of this application, unless the context clearly indicates an exception, the words "a," "an," "an," and / or "the" do not refer to the singular and may include the plural. Generally speaking, the terms "comprise" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or device may also include other steps or elements.

[0049] Similarly, it should be noted that, in order to simplify the description of this application and thus facilitate understanding of one or more embodiments of the application, the foregoing description of the embodiments of this application sometimes combines multiple features into a single embodiment, figure, or description thereof. However, this disclosure method does not mean that the subject matter of this application requires more features than those recited in the claims. In fact, the features of an embodiment may be fewer than all the features of the individual embodiments disclosed above.

[0050] The basic concepts have been described above. It will be apparent to those skilled in the art that the above disclosure is merely illustrative and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and amendments to the present application. Such modifications, improvements, and amendments are suggested in the present application and remain within the spirit and scope of the embodiments of the present application.

Claims

1. A dust-proof nozzle device, used in a sorting machine, wherein: The dust-proof nozzle device comprises: an air outlet channel, which is a tubular structure and is obliquely arranged in the separator, wherein the lower end of the air outlet channel forms an air inlet for the gas to enter, and the upper end of the air outlet channel forms an air outlet for the gas to discharge; The dust collection channel is a tubular structure. The upper end of the dust collection channel is connected to the lower side of the middle part of the air outlet channel and extends downwardly to the air outlet channel. The upper end of the dust collection channel is used to receive dust entering from the air inlet, and the lower end of the dust collection channel is used to discharge the dust.

2. The dust-proof nozzle device according to claim 1, wherein: The dust-proof nozzle device further includes: a sealed cavity communicated with the lower end of the dust-falling channel and used for receiving and storing the dust.

3. The dust-proof nozzle device according to claim 2, wherein: The dust-proof nozzle device further comprises a shell, the upper portion of which forms the air outlet channel and the dust falling channel, and the lower portion of which forms a sealed cavity.

4. The dust-proof nozzle device according to claim 3, wherein: A card slot is formed in the bottom of the shell and the sealed cavity; the dust-proof nozzle device also includes: a sealing plate, which is a plate-shaped structure and is detachably connected to the card slot. When the sealing plate is in a closed state, it is used to seal the sealed cavity; when the sealing plate is in an open state, it is used to discharge the dust.

5. The dust-proof nozzle device according to claim 1, wherein: The distance between the upper end of the dust falling channel and the air outlet is greater than or equal to 10 mm.

6. The dust-proof nozzle device according to claim 1, wherein: The angle between the dust falling channel and the vertical direction is 0-45 degrees.

7. The dust-proof nozzle device according to claim 1, wherein: The included angle between the dust falling channel and the air outlet channel is less than or equal to 90 degrees.

8. The dust-proof nozzle device according to claim 1, wherein: The dust-proof nozzle device also includes: a baffle, which is obliquely arranged at the upper end of the dust-falling channel and is located on the side away from the air outlet. The bottom edge of the baffle is connected to the inner wall of the air outlet channel, and the baffle extends into the air outlet channel and in the air outlet direction.

9. A blowing device, wherein: The blowing device comprises: Gas source; a gas exchange valve connected to the gas source and used to control and regulate gas flow; The dust-proof nozzle device according to any one of claims 1 to 8, wherein the air inlet of the air outlet channel is connected to the air exchange valve for injecting gas; A sealing ring is used to seal the connection between the air inlet of the air outlet channel and the air exchange valve.

10. A sorting machine for sorting materials, wherein: The sorting machine comprises: Belt transmission device for conveying materials; an identification device for identifying the material conveyed by the belt transmission device to obtain the type of the material; The blowing device according to claim 9 is used to sort the material according to the category of the material.

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