Injection mechanism, air injection device and sorting machine

Abstract

The utility model relates to the field of material sorting, in particular to an injection mechanism, a gas injection device and a sorting machine, the injection mechanism is applied to the sorting machine, and the injection mechanism comprises a valve body, a gas discharge channel is formed in the valve body, one end of the valve body is used for being connected to a gas source, and the other end of the valve body is used for discharging gas; the nozzle is arranged on the upper portion of the valve body and comprises a first channel, one end of the first channel is communicated with the exhaust channel, and the first channel is used for receiving gas exhausted by the exhaust channel and exhausting the gas. The second channel is obliquely arranged on one side of the first channel, and the lower side of the middle of the second channel communicates with one end of the first channel; a gas outlet of the second channel is used for discharging gas; the dust removal channel is of a tubular structure, one end of the dust removal channel is communicated with an air source, the other end of the dust removal channel is communicated with the air inlet, and the dust removal channel is used for receiving air exhausted by the air source, exhausting the air to the second channel and preventing dust from falling into the air outlet. Dust can be prevented from falling into the air outlet, and the air outlet can be effectively prevented from being blocked.

Description

Technical Field

[0001] This disclosure relates to the field of material sorting, specifically to a spraying mechanism, an air spraying device, and a sorting machine. Background Technology

[0002] In some material sorting scenarios, such as coal and ore sorting, separators can use a jet-blowing device to separate materials. When the jet-blowing device is not blowing air, dust and other foreign objects can easily enter the nozzles. When a large amount of foreign objects remain in the nozzles, it often leads to nozzle blockage, affecting the jet-blowing effect and resulting in poor material sorting efficiency and accuracy. Utility Model Content

[0003] To overcome the problems existing in the related technology, an exemplary embodiment of this disclosure provides a first aspect of a spraying mechanism applied to a sorting machine. The spraying mechanism includes: a valve body with an exhaust channel inside, one end of which is connected to a gas source, and the other end of which is used to discharge gas; a nozzle disposed on the upper part of the valve body, the nozzle including multiple sets of gas passages, each set of gas passages including: a first channel, which is tubular in structure, one end of the first channel is connected to the exhaust channel, and is used to receive gas discharged from the exhaust channel and discharge the gas; a second channel, which is tubular in structure, is inclinedly disposed on one side of the first channel, the lower side of the middle part of the second channel is connected to one end of the first channel, and is capable of receiving gas discharged from the first channel; an air inlet is formed at one end of the second channel, and an air outlet is formed at the other end, the air outlet being used to discharge gas; and a dust removal channel, which is tubular in structure, one end of which is connected to a gas source, and the other end of which is connected to the air inlet, and is used to receive gas discharged from the gas source and discharge the gas to the second channel, in order to prevent dust from falling into the air outlet.

[0004] In some embodiments, the diameter of the dust removal channel is smaller than the diameter of the second channel.

[0005] In some embodiments, the dust removal channel is coaxially arranged with the second channel.

[0006] In some embodiments, one end of the dust removal channel is disposed between the first channel and the air outlet.

[0007] In some embodiments, the nozzle further includes: a first dust collection channel, which has a cavity structure and is disposed at the bottom of the nozzle, with one side connected to the exhaust channel and the other side connected to the first channel, for receiving and storing dust falling into the first channel; or, the valve body further includes: a second dust collection channel, which has a cavity structure and is disposed at the top of the valve body, with one side connected to the exhaust channel and the other side connected to the first channel, for receiving and storing dust falling into the first channel.

[0008] In some embodiments, the nozzle is detachably connected to the valve body.

[0009] In some embodiments, the exhaust passage includes a third passage and a fourth passage, wherein the third passage and the fourth passage are arranged perpendicularly to each other and are interconnected, one end of the third passage is used for air intake, and one end of the fourth passage is used for air exhaust.

[0010] In some embodiments, the blowing mechanism further includes: a pressure reducing pipeline, one end of which is connected to an air source and the other end of which is connected to the dust removal channel; and a pressure reducing valve disposed on the pressure reducing pipeline.

[0011] In some embodiments, the nozzle includes: a row of gas passages; or, multiple rows of gas passages, wherein adjacent rows of gas passages are staggered.

[0012] Secondly, this disclosure also provides a pneumatic spraying device for material sorting, comprising: a gas source; a solenoid valve connected to the gas source for controlling and regulating gas flow; and one or more spraying mechanisms arranged side by side as described in the first aspect for sorting two or more types of materials, wherein the spraying mechanism includes a pressure reducing pipeline and an exhaust channel, one end of the pressure reducing pipeline being connected to the gas source, and one end of the exhaust channel being connected to the solenoid valve.

[0013] Thirdly, this disclosure also provides a sorting machine, comprising: a belt conveyor for conveying materials; an identification device for identifying the materials conveyed by the belt conveyor to obtain the category of the materials; and an air spray device as described in the second aspect for sorting the materials according to the category of the materials.

[0014] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0015] This disclosure provides a blowing mechanism, an air-blowing device, and a sorting machine. The blowing mechanism includes a valve body and a nozzle. The exhaust channel of the valve body can supply gas to the first channel of the nozzle for blowing materials during material sorting. The nozzle has a dust removal channel, one end of which is connected to an air source, and the other end supplies gas to the second channel. The gas is discharged from the outlet of the second channel, which can prevent dust from falling into the outlet and effectively prevent the outlet from being blocked. This reduces the frequency of nozzle maintenance, lowers maintenance costs, improves the blowing effect, enhances the accuracy and precision of material sorting, increases the sorting efficiency, and effectively increases the sorting output of materials. Attached Figure Description

[0016] This disclosure can be better understood by describing exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, in which:

[0017] Figure 1 This is a schematic diagram of a pneumatic spray device according to a disclosed exemplary embodiment;

[0018] Figure 2 This is a schematic diagram of a jetting mechanism according to a disclosed exemplary embodiment;

[0019] Figure 3 This is a schematic diagram of a sorting machine according to a disclosed exemplary embodiment;

[0020] Figure 4 This is a schematic diagram of a jetting mechanism according to another disclosed exemplary embodiment;

[0021] Figure 5 This is a schematic diagram of a nozzle according to another disclosed exemplary embodiment. Detailed Implementation

[0022] The following describes specific embodiments of this disclosure. It should be noted that, in order to provide a concise description, this specification cannot exhaustively describe all features of the actual embodiments. It should be understood that, in the actual implementation of any embodiment, just as in any engineering or design project, various specific decisions are often made to achieve the developer's specific goals and to meet system-related or business-related constraints, and this can change from one embodiment to another. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content of this disclosure, some design, manufacturing, or production modifications based on the technical content disclosed in this disclosure are merely conventional technical means and should not be construed as insufficient content of this disclosure.

[0023] Unless otherwise defined, the technical or scientific terms used in the claims and description shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar words used in the specification and claims of this utility model patent application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar words mean that the element or object preceding "comprising" or "including" encompasses the element or object listed following "comprising" or "including" and its equivalents, and do not exclude other elements or objects. The terms "connected" or "linked" and similar words are not limited to physical or mechanical connections, nor are they limited to direct or indirect connections.

[0024] In some scenarios, such as the sorting of materials like coal and ore, the jet-blowing device of the separator can be connected to an air source via a solenoid valve to control the airflow at the nozzles, thus achieving material sorting. In relatively harsh environments, when there is a large amount of foreign matter such as dust, mud, or water, and the nozzles are not blowing air, these foreign objects can easily fall into the nozzles. When a large amount of foreign matter remains in the nozzles, it can cause blockage, affecting the jet-blowing effect and consequently impacting the accuracy and precision of material sorting, ultimately affecting the sorting efficiency.

[0025] To overcome the problems existing in related technologies, exemplary embodiments of this disclosure provide a blowing mechanism 100, such as... Figure 1 , Figure 2 , Figure 3 As shown, this is applied to a sorting machine. The sorting machine may include: a belt conveyor 400, an identification device 500, and an air-jetting device, etc. The belt conveyor 400 can be used to transport materials, such as coal and ore; the identification device 500 can be used to identify the material transported by the belt conveyor 400 to obtain the material category; the air-jetting device may include: an air source, a solenoid valve 300, and a jetting mechanism 100. The air source can provide gas to the jetting mechanism 100 for air jetting. The air source can be located outside the jetting mechanism 100. The solenoid valve 300 can be connected to the air source 210 and can be used to control the flow of adjustable gas. When the solenoid valve 300 is open, gas can be introduced into the jetting mechanism 100 to perform jetting action; when the solenoid valve 300 is closed, gas introduction into the jetting mechanism 100 stops. The jetting mechanism 100, as shown... Figure 1 , Figure 2 As shown, it may include: valve body 110 and nozzle 120.

[0026] Valve body 110, such as Figure 1As shown, an exhaust channel 111 can be provided internally, one end of which can be connected to the gas source 210, and the other end can be used to discharge gas. The valve body 110 can be made of high-strength materials such as stainless steel. The valve body 110 can adopt an integrated structure, and an exhaust channel 111 can be formed internally. The exhaust channel 111 can be a tubular structure, such as a cylindrical tubular structure, which can effectively guide gas flow, reduce airflow resistance, and improve airflow efficiency and speed. The exhaust channel 111 can be a straight channel, or it can be a two-fold, three-fold, or multi-fold channel, and the shape of the folds can be set according to the size of the space. The exhaust channel 111 can be directly connected to the gas source 210, or it can be connected to the gas source 210 by a component such as a solenoid valve 300. When the solenoid valve 300 is open, the gas source 210 can discharge gas into the exhaust channel 111, and the exhaust channel 111 can deliver gas to the nozzle 120, where the nozzle 120 sprays gas; when the solenoid valve 300 is closed, the nozzle 120 stops spraying gas. The diameter and thickness of the exhaust channel 111 can be set according to actual conditions to adapt to different gas flow and pressure conditions.

[0027] Nozzle 120, such as Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown, the nozzle 120 can be positioned at the upper part of the valve body 110. The valve body 110 can be positioned at the lower part of the nozzle 120. The terms "upper" and "lower" in this application refer to relative positions; the figures are only used to clearly illustrate the positional relationship between the nozzle 120 and the valve body 110. Gas from the exhaust passage 111 within the valve body 110 can be delivered to the exhaust port of the nozzle 120. The nozzle 120 can be detachably connected to the valve body 110 for easy assembly and disassembly. Alternatively, it can be integrally formed with or fixedly connected to the valve body 110, such as by welding. The nozzle 120 can include multiple gas passages or a single gas passage. Each gas passage can include: a first passage 121, a second passage 122, and a dust removal passage 123.

[0028] First channel 121, as follows Figure 1 , Figure 2 , Figure 4As shown, it can be a tubular structure. One end of the first channel 121 can be connected to the exhaust channel 111, which can be used to receive and discharge the gas discharged from the exhaust channel 111. The first channel 121 can be tubular, specifically a cylindrical tubular structure, and can be vertically arranged. The lower end of the first channel 121 can be connected to the exhaust channel 111 to receive the gas discharged from the exhaust channel 111. The diameter and thickness of the first channel 121 can also be set according to actual conditions to adapt to different gas flow rates and pressures. The exhaust channel 111 can discharge gas to the first channel 121. The first channel 121 can receive the gas discharged from the exhaust channel 111 and discharge the gas to the second channel 122. Air jetting can be performed at the outlet of the second channel 122 for material sorting.

[0029] Second channel 122, such as Figure 1 , Figure 2 , Figure 4 As shown, the second channel 122 can have a tubular structure and can be inclinedly arranged on one side of the first channel 121. The lower side of the middle part of the second channel 122 can be connected to one end of the first channel 121 to receive the gas discharged from the first channel 121. One end of the second channel 122 can form an air inlet 1221, and the other end can form an air outlet 1222, which can be used to discharge gas. The second channel 122 can be arranged at the upper end of the first channel 121 and beside the first channel 121. It can have an inclined tubular structure and can be a cylindrical tubular structure. One end of the second channel 122 can be an air inlet 1221, and the other end can be an air outlet 1222. The air inlet 1221 can be arranged lower than the air outlet 1222. The air inlet 1221 at the lower end can be connected to the dust removal channel 123. The gas in the dust removal channel 123 can be transported to the second channel 122 and discharged through the air outlet 1222 at the upper end. This prevents dust from falling into the air outlet 1222 and causing blockage of the second pipe 122. The lower part of the middle section of the second channel 122 can be connected to the upper end of the first channel 121, so that the second channel 122 can receive the gas discharged from the first channel 121. The gas discharged from the first channel 121 can be discharged from the air outlet 1222 located at the upper end, which can be used for material blowing and material sorting.

[0030] Dust removal channels 123, such as Figure 1 , Figure 2 , Figure 4As shown, the dust removal channel 123 has a tubular structure. One end can be connected to the air source 220, and the other end can be connected to the air inlet 1221. It receives the gas discharged from the air source 220 and discharges the gas to the second channel 122, preventing dust from falling into the air outlet 1222. The dust removal channel 123 can also be a tubular structure, specifically a cylindrical tubular structure. One end can be connected to the air inlet 1221 at the lower end of the second channel 122, allowing gas to be transported to the second channel 122 and discharged from the air outlet 1222 at the upper end, preventing dust and other foreign objects from falling into the upper air outlet 1222. In a certain spatial layout, the dust removal channel 123 can be coaxially arranged with the second channel 122 or at a certain angle. The gas in the dust removal channel 123 can be transported to the second channel 122 and discharged through the air outlet 1222, preventing dust from falling into the air outlet 1222 and avoiding blockage of the second channel 122. The other end of the dust removal channel 123 can be connected to the air source 220. The air source 220 can be the same as or different from the air source 210. The air source 220 can be a normally open air source, ensuring the unobstructed flow of the air outlet 1222 of the second channel 122 at all times. The air source 220 can be a low-pressure air source. When the air source 220 is the same as the air source 210, a pressure reducing valve can be connected to lower the gas pressure. When both the first channel 121 and the dust removal channel 123 are simultaneously supplying gas to the second channel 122, the low-pressure air source 220 maintains a stable airflow within the second channel 122, without affecting the blowing effect, thus ensuring the stability of material sorting.

[0031] The first channel 121 can simultaneously supply gas to the second channel 122 along with the dust removal channel 123, or they can supply gas to the second channel 122 separately. When only the first channel 121 supplies gas to the second channel 122, the outlet 1222 can not only be used to blow away materials, but also prevent dust from falling into the outlet 1222. When material sorting stops, only the dust removal channel 123 supplies gas to the second channel 122, ensuring that the dust in the outlet 1222 is blown out, preventing blockage in the second channel 122, and avoiding the impact of the airflow from the dust removal channel 123 on material sorting.

[0032] When the first channel 121 and the dust removal channel 123 simultaneously supply gas to the second channel 122, the low-pressure gas source connected to the dust removal channel 123 can maintain stable airflow within the second channel 122, ensuring no impact on material blowing effect and preventing blockage. This guarantees material sorting stability, improves sorting accuracy, and increases sorting efficiency. The first channel 121 and the dust removal channel 123 can alternately supply gas to the second channel 122, effectively blowing away dust and other foreign matter from the outlet 1222, improving sorting precision and accuracy, and increasing sorting efficiency and output.

[0033] In this embodiment of the disclosure, a blowing mechanism 100 is provided. The blowing mechanism 100 is provided with a valve body 110 and a nozzle 120. The exhaust channel 111 of the valve body 110 can supply gas to the first channel 121 of the nozzle 120 for blowing during material sorting. A dust removal channel 123 is provided in the nozzle 120, one end of which is connected to the air source 220, and the other end supplies gas to the second channel 122, so that the gas is discharged from the air outlet 1222 of the second channel 122. This can prevent dust from falling into the air outlet 1222, effectively prevent the air outlet 1222 from being blocked, reduce the maintenance frequency of the nozzle 120, reduce maintenance costs, improve the blowing effect, improve the accuracy and precision of material sorting, improve the efficiency of material sorting, and increase the output of material sorting.

[0034] In some embodiments, such as Figure 1 , Figure 2 , Figure 4 As shown, the diameter of the dust removal channel 123 can be smaller than the diameter of the second channel 122. When the dust removal channel 123 and the first channel 121 simultaneously supply gas to the second channel 122, the gas ejected from the outlet 1222 consists of two streams of gas supplied by the dust removal channel 123 and the first channel 121. At this time, the diameter of the dust removal channel 123 can be smaller than the diameter of the second channel 122. The gas supplied from the dust removal channel 121 to the second channel 122 does not affect the gas supplied from the first channel 121 to the second channel 122, thus maintaining stable airflow within the second channel 122 and not affecting the airflow at the outlet 1222, thereby maintaining the stability of the material's movement trajectory. In this embodiment, by setting the diameter of the dust removal channel 123 to be smaller than the diameter of the second channel 122, the airflow in the second channel 122 can be kept stable, maintaining the blowing effect for material sorting, maintaining the material's movement trajectory, ensuring material sorting efficiency and accuracy, and improving material sorting output.

[0035] In some embodiments, such as Figure 1 , Figure 2 , Figure 4As shown, the dust removal channel 123 and the second channel 122 can be coaxially arranged. One end of the dust removal channel 123 can be coaxially arranged with the air inlet 1221 of the second channel 122. The gas from the air source 220 connected to one end of the dust removal channel 123 can directly reach the second channel 122. The airflow will exert a relatively large force on the foreign objects at the air outlet 1222 of the second channel 122, and can directly discharge the foreign objects to the outside of the air outlet 1222. In this embodiment of the present disclosure, by coaxially arranging the dust removal channel 123 and the second channel 122, the airflow can be directly applied to the foreign objects in the second channel 122, which can improve the cleaning efficiency in the second channel 122, thereby improving the blowing effect and achieving efficient material sorting.

[0036] In some embodiments, one end of the dust removal channel 123 can be disposed between the first channel 121 and the air outlet 1222. One end of the dust removal channel 123 can be disposed near the air outlet 1222 at the upper end of the second channel 122, and can be disposed between the first channel 121 and the air outlet 1222, at the upper, lower, left, or right part of the second channel 122. When both the dust removal channel 123 and the first channel 121 simultaneously supply gas to the second channel 122, the amount of gas supplied by the dust removal channel 123 to the second channel 122 is relatively small, and the gas ejected from the air outlet 1222 can be equivalent to the gas supplied by the first channel 121 to the second channel 122, thus ensuring stable airflow within the second channel 122. In this embodiment, disposing of the dust removal channel 123 between the first channel 121 and the air outlet 1222 can maintain stable airflow within the second channel 122, maintain the blowing effect for material sorting, maintain the material's movement trajectory, and ensure material sorting efficiency and accuracy.

[0037] In some embodiments, such as Figure 1 , Figure 2As shown, the nozzle 120 may further include a first dust collection channel 124, which may be a cavity structure and may be disposed at the bottom of the nozzle 120. One side may be connected to the exhaust channel 111, and the other side may be connected to the first channel 121. It may be used to receive and store dust falling into the first channel 121. The first dust collection channel 124 may also be disposed inside the nozzle 120, and may be a cavity structure, which may be a rectangular cavity. The first dust collection channel 124 can be set at the bottom of the nozzle 120. One side of the lower surface can connect to the exhaust channel 111, and the other side of the upper surface can connect to the first channel 121. The exhaust channel 111 and the first channel 121 can be staggered. When dust or other foreign objects enter the air outlet 1222, the dust will fall into the first channel 121 through the second channel 122. When the first channel 121 is set vertically, the dust will fall into the first dust collection channel 124 under the action of gravity. Since the exhaust channel 111 and the first channel 121 are staggered, the dust will not fall directly into the exhaust channel 111, but will be stored in the first dust collection channel 124 and cleaned later.

[0038] The valve body 110 may further include a second dust collection channel (not shown in the figure), which may have a cavity structure and may be located at the top of the valve body 110. One side may be connected to the exhaust channel 111, and the other side may be connected to the first channel 121. It may be used to receive and store dust falling into the first channel 121. A second dust collection channel (not shown in the figure) may also be provided inside the valve body 110. It may have a cavity structure and may be a rectangular cavity. The second dust collection channel (not shown in the figure) may be located at the top of the valve body 110. One side of its lower surface may be connected to the exhaust channel 111, and the other side of its upper surface may be connected to the first channel 121. The exhaust channel 111 and the first channel 121 may be staggered. Either the first dust collection channel 124 or the second dust collection channel (not shown in the figure) may be selected.

[0039] In this embodiment of the present disclosure, by providing a first dust collection channel 124 at the bottom of the nozzle 120 or a second dust collection channel (not shown in the figure) at the top of the valve body, the dust entering the air outlet 1222 can fall into the first dust collection channel 124 or the second dust collection channel (not shown in the figure), which can store dust and other foreign objects and clean them before the next spraying, thereby improving the spraying effect and ensuring the efficiency and accuracy of material sorting.

[0040] In some embodiments, the nozzle 120 can be detachably connected to the valve body 110. The first dust collection channel 124 or the second dust collection channel 112 can store dust and other foreign objects. Before the next cleaning cycle, the nozzle 120 and the valve body 110 can be disassembled to remove the dust and other foreign objects from the first dust collection channel 124 or the second dust collection channel 112. After the dust and other foreign objects are removed, the nozzle 120 and the valve body 110 can be fully reassembled. In this embodiment, the detachable connection between the nozzle 120 and the valve body 110 allows for effective cleaning of dust and other foreign objects from the first dust collection channel 124 or the second dust collection channel 112, ensuring that the dust and other foreign objects do not affect the cleaning effect. This further improves the cleaning effect of the air outlet 1222, thereby increasing the material sorting efficiency and accuracy.

[0041] In some embodiments, such as Figure 1 , Figure 2 As shown, the exhaust channel 111 may include a third channel 1111 and a fourth channel 1112. The third channel 1111 and the fourth channel 1112 can be arranged perpendicularly and communicate with each other. One end of the third channel 1111 can be used for air intake, and one end of the fourth channel 1112 can be used for exhaust. The exhaust channel 111 can be composed of the third channel 1111 and the fourth channel 1112. One end of the third channel 1111 can be used for air intake, and the other end can be connected to the fourth channel 1112. One end of the fourth channel 1112 can be connected to the third channel 1111, and the other end can be connected to the first channel 121. The third channel 1111 and the fourth channel 1112 can be arranged perpendicularly. During the blowing action, the third channel 1111 can vertically deliver gas to the fourth channel 1112, and the fourth channel 1112 can deliver gas to the first channel 121 for blowing and material sorting. The third channel 1111 is used for air intake and can be connected to the solenoid valve 300. When the solenoid valve 300 is open, the third channel 1111 begins to intake air, starting preparation for material sorting. When the solenoid valve 300 is closed, the third channel 1111 stops intake air, stopping preparation for material sorting.

[0042] In this embodiment, by arranging the third channel 1111 and the fourth channel 1112 perpendicularly to each other, dust and other foreign objects falling into the first channel 121 can be prevented from falling into the solenoid valve 300, thereby reducing the failure rate of the solenoid valve 300 and lowering the operating cost. The normal operation of the solenoid valve 300 ensures proper material blowing, thus guaranteeing the efficiency and accuracy of material sorting and ensuring the output of material sorting.

[0043] In some embodiments, such as Figure 1 As shown, the blowing mechanism 100 may also include: a pressure reducing pipeline 130 and a pressure reducing valve 140.

[0044] Pressure reducing pipeline 130, such as Figure 1 As shown, one end can be connected to the gas source 220, and the other end can be connected to the dust removal channel 123. The pressure reducing pipeline 130 can be a tubular structure connecting the gas source 220 and the dust removal channel 123. Both ends of the pressure reducing pipeline 130 have specific connection interfaces; one end is tightly connected to the gas source 220 to ensure that gas can smoothly enter the pressure reducing pipeline 130 from the gas source; the other end is connected to the dust removal channel 123, allowing the pressure-reduced gas to accurately enter the dust removal channel 123 for subsequent cleaning of the second pipeline 122. Various valves, pressure gauges, pressure reducing valves, and other equipment can also be installed on the pressure reducing pipeline 130.

[0045] Pressure reducing valve 140, such as Figure 1 As shown, a pressure reducing valve 140 can be installed on the pressure reducing pipeline 130. This valve reduces the gas pressure exiting the gas source 220, adjusting the gas to a suitable level to meet the dust removal requirements of the second channel 122. When a large amount of dust or other foreign matter accumulates at the outlet 1222 of the second channel 122, the pressure reducing valve 140 adjusts the pressure of the pressure reducing pipeline 130, ensuring that the airflow can blow out the dust from the outlet 1222. When both the dust removal channel 123 and the first channel 121 simultaneously supply gas to the second channel 122, the pressure reducing valve 140 adjusts the pressure of the pressure reducing pipeline 130, ensuring that the airflow to the second channel 122 does not affect the gas supplied from the first channel 121 to the second channel 122. This maintains stable airflow within the second channel 122, preserves the spraying effect for material sorting, maintains the material's movement trajectory, and guarantees material sorting efficiency and accuracy.

[0046] In this embodiment of the present disclosure, by setting up a pressure reducing pipeline 130 and a pressure reducing valve 140, the gas in the pressure reducing pipeline 130 can be adjusted by the pressure reducing valve 140, so that the gas entering the dust removal channel 123 can smoothly pass to the second channel 122, and the airflow to the second channel 122 will not affect the gas delivered from the first channel 121 to the second channel 122. This can maintain the stability of the airflow in the second channel 122, maintain the blowing effect of material sorting, maintain the movement trajectory of the material, and ensure the sorting efficiency and accuracy of the material.

[0047] In some embodiments, such as Figure 4 , Figure 5 As shown, the nozzle 120 may include: a row of gas passages; or, multiple rows of gas passages, wherein adjacent rows of gas passages may be staggered.

[0048] A row of gas passages, such as Figure 1 , Figure 4As shown, the gas passages can be arranged sequentially in a horizontal direction. There can be one or more gas passages, with a minimum of 10. The gas passages can be arranged in a straight line in the horizontal direction. The dust removal passage 123 in one row of gas passages can be connected to an air source 220 to purge the gas passage, preventing blockage of the outlet 1222 and affecting material purging. When only one row of gas passages is purging material, the material can be sorted into two types: material not purged and material purged through the gas passage.

[0049] Multiple gas passages, such as Figure 4 , Figure 5 As shown, the gas passages can be arranged in two or more rows. In some scenarios, two rows of gas passages can be arranged. The first row of gas passages can be arranged above the nozzle 120, and the second row of gas passages can be arranged below the first row of gas passages. They can be arranged alternately with the first row of gas passages or parallel to the first row of gas passages. There can be one or more second row of gas passages, with a minimum of 10. The second row of gas passages can be arranged alternately with the first row of gas passages, which can save space in the entire nozzle 120. The gas sources 210 connected to the first and second rows of gas passages can be the same or different. The first dust removal channel 1231 in the first row of gas passages and the second dust removal channel 1232 in the second row of gas passages can be connected to the same gas source 220 or different. The first dust removal channel 1231 and the second dust removal channel 1232 can remove dust from the first and second rows of gas passages respectively, or they can remove dust from the first and second rows of gas passages simultaneously.

[0050] The first and second gas passages can be used for alternating or simultaneous blowing. When only the first gas passage is used, the material can be sorted into two types: material not blown and material that has been blown through the first gas passage. Similarly, when only the second gas passage is used, the material can also be sorted into two types: material not blown and material that has been blown through the second gas passage. When the first and second gas passages are used alternately, the material can be sorted into three types: material not blown, material that has been blown through the first gas passage, and material that has been blown through the second gas passage. When both the first and second gas passages are used simultaneously, the material can be sorted into two types: material not blown and material that has been blown through both gas passages simultaneously.

[0051] In this embodiment, by setting one or more gas passages, materials can be sorted simultaneously or alternately, improving the sorting accuracy and enabling more precise separation of qualified materials and impurities. This reduces material waste and increases resource utilization. Furthermore, more material can be processed per unit time, increasing the sorting machine's production efficiency. The dust removal channel effectively removes dust from the gas passages, preventing blockages at the gas outlets, reducing maintenance frequency and costs, improving the blowing effect, enhancing the precision and accuracy of material sorting, increasing sorting efficiency, and boosting output.

[0052] Based on the same inventive concept, exemplary embodiments of this disclosure also provide a pneumatic spraying device that can be used for material sorting, such as... Figure 1 , Figure 3 As shown, it may include: an air source 210, a solenoid valve 300, and a jetting mechanism 100 as described in the previous embodiment.

[0053] The gas source 210 can provide gas to the blowing mechanism 100.

[0054] Solenoid valve 300 can be connected to air source 220 and can be used to control and regulate gas flow. When solenoid valve 300 is open, gas can be introduced into the blowing mechanism 100 to blow materials and sort them; when solenoid valve 300 is closed, gas introduction in the blowing mechanism 100 stops, and material sorting stops.

[0055] One or more blowing mechanisms 100 arranged side-by-side can be used to sort two or more types of materials. There can be one or more blowing mechanisms 100, and multiple blowing mechanisms 100 can be arranged side-by-side. One blowing mechanism 100 can sort materials into two types: materials not obtained by blowing and materials that have been blown by the blowing mechanism 100. Two blowing mechanisms 100 arranged side-by-side can sort materials into three types: materials not obtained by blowing, materials that have been blown by one blowing mechanism 100, and materials that have been blown by two blowing mechanisms 100. Similarly, three blowing mechanisms 100 arranged side-by-side can sort materials into four types: materials not obtained by blowing, materials that have been blown by one blowing mechanism 100, materials that have been blown by two blowing mechanisms 100, and materials that have been blown by three blowing mechanisms 100. The blowing mechanism 100 can be equipped with a pressure reducing pipe 130 and an exhaust pipe 111. The pressure-reducing pipeline 130 has connection interfaces at both ends. One end can be tightly connected to the gas source 210 to ensure that gas can smoothly enter the pressure-reducing pipeline 130 from the gas source; the other end can be connected to the dust removal channel 123, so that the gas after pressure reduction can accurately enter the dust removal channel 123 for subsequent cleaning. A pressure-reducing valve 140 can be installed in the pressure-reducing pipeline 130 to reduce the gas pressure from the gas source 210, adjusting the gas to a suitable level to meet the dust removal requirements of the dust removal channel 123, ensuring the efficiency and stability of the dust removal process. The exhaust channel 111 can be equipped with a solenoid valve 300 connected to the gas source 210. When the solenoid valve 300 is open, the exhaust channel 111 can deliver gas to the nozzle 120, and the nozzle 120 sprays gas at its outlet for material sorting; when the solenoid valve 300 is closed, the nozzle 120 stops spraying gas, and material sorting stops.

[0056] In this embodiment, a pneumatic spraying device is provided, comprising an air source 220, a solenoid valve 300, and a spraying mechanism 100. The spraying mechanism 100 is provided with a valve body 110 and a nozzle 120. The exhaust channel 111 of the valve body 110 can supply gas to the first channel 121 of the nozzle 120 for spraying during material sorting. A dust removal channel 123 is provided inside the nozzle 120, one end of which is connected to the air source 220, and the other end supplies gas to the second channel 122, so that the gas is discharged from the air outlet 1222 of the second channel 122. This can prevent dust from falling into the air outlet 1222, effectively preventing the air outlet 1222 from becoming blocked, reducing the maintenance frequency of the nozzle 120, reducing maintenance costs, improving the spraying effect, and enhancing the accuracy and precision of material sorting. Furthermore, a third channel 1111 and a fourth channel 1112 are provided within the exhaust channel 111. By arranging the third channel 1111 and the fourth channel 1112 perpendicularly to each other, dust and other foreign objects falling into the first channel 121 can be prevented from falling into the solenoid valve 300, thereby reducing the failure rate of the solenoid valve 300 and lowering operating costs. The normal operation of the solenoid valve 300 ensures that materials are properly sprayed, thus guaranteeing the efficiency and accuracy of material sorting and ensuring the output of material sorting.

[0057] Based on the same inventive concept, exemplary embodiments of this disclosure also provide a sorting machine that can be used for material sorting, wherein the sorting machine, such as... Figure 3 As shown, it may include: a belt conveyor 400, an identification device 500, such as the air jet device in the aforementioned embodiment.

[0058] Belt conveyor 400 is used to transport materials. The belt conveyor can be a conveyor belt, etc., and materials can be placed on the belt conveyor and transported to the identification device 500 by the belt conveyor.

[0059] The identification device 500 can be used to identify the material being conveyed by the belt conveyor 400 to obtain the material category.

[0060] The air-jet device, which can be the air-jet device in the aforementioned embodiments, can be used to sort materials according to their category. The air-jet device can be located downstream of the belt conveyor 400 and can sort materials according to their category, thus separating different categories of materials from each other.

[0061] In this embodiment of the disclosure, a sorting machine is provided, which can transport materials via a belt conveyor 400, facilitating identification and classification by the identification device 500. Based on the identification and classification of materials by the identification device 500, different types of materials are finally sorted by an air jet device, which can accurately and quickly classify the materials to be tested, with high identification and sorting accuracy. The blowing mechanism 100 in the air-jet device is equipped with a valve body 110 and a nozzle 120. The exhaust channel 111 of the valve body 110 can supply gas to the first channel 121 of the nozzle 120 for blowing during material sorting. The nozzle 120 is equipped with a dust removal channel 123, one end of which is connected to the air source 220, and the other end supplies gas to the second channel 122. The gas is discharged from the air outlet 1222 of the second channel 122, which can prevent dust from falling into the air outlet 1222, effectively preventing the air outlet 1222 from being blocked, reducing the maintenance frequency of the nozzle 120, reducing maintenance costs, improving the blowing effect, and improving the accuracy and precision of material sorting.

[0062] This application uses specific terms to describe embodiments of the application. Terms such as "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that references to "an embodiment," "one embodiment," or "an alternative embodiment" in different locations throughout this specification do not necessarily refer to the same embodiment. Furthermore, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0063] In the context of this application, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0064] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the present application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0065] The basic concepts have been described above. Obviously, for those skilled in the art, the above disclosure is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the embodiments of this application.

Claims

1. A blowing mechanism applied to a sorting machine, characterized by, The blowing mechanism includes: The valve body has an internal exhaust passage, one end of which is connected to a gas source, and the other end is used to discharge the gas; and, A nozzle is disposed on the upper part of the valve body, and the nozzle includes multiple gas passages, each gas passage including: The first channel has a tubular structure, with one end connected to the exhaust channel, for receiving the gas discharged from the exhaust channel and discharging the gas. The second channel, having a tubular structure, is inclinedly disposed on one side of the first channel. The lower side of the middle portion of the second channel is connected to one end of the first channel, enabling it to receive gas discharged from the first channel. One end of the second channel has an air inlet, and the other end has an air outlet for discharging gas. The dust removal channel has a tubular structure, with one end connected to the air source and the other end connected to the air inlet. It is used to receive the gas discharged from the air source and discharge the gas to the second channel to prevent dust from falling into the air outlet.

2. The injection mechanism of claim 1, wherein The diameter of the dust removal channel is smaller than the diameter of the second channel.

3. The injection mechanism of claim 1, wherein The dust removal channel is coaxially arranged with the second channel.

4. The injection mechanism of claim 1, wherein One end of the dust removal channel is located between the first channel and the air outlet.

5. The jetting mechanism according to claim 1, characterized in that, The nozzle further includes: a first dust collection channel, which has a cavity structure and is disposed at the bottom of the nozzle, with one side communicating with the exhaust channel and the other side communicating with the first channel, for receiving and storing dust falling into the first channel; or, The valve body further includes a second dust collection channel, which has a cavity structure and is located at the top of the valve body. One side of the channel is connected to the exhaust channel, and the other side is connected to the first channel. It is used to receive and store the dust that falls into the first channel.

6. The injection mechanism of claim 5, wherein The nozzle is detachably connected to the valve body.

7. The injection mechanism of claim 1, wherein The exhaust passage includes a third passage and a fourth passage. The third passage and the fourth passage are arranged perpendicularly to each other and are interconnected. One end of the third passage is used for air intake, and one end of the fourth passage is used for air exhaust.

8. The injection mechanism of claim 1, wherein The blowing mechanism also includes: The pressure reducing pipeline has one end connected to the air source and the other end connected to the dust removal channel; A pressure reducing valve is installed on the pressure reducing pipeline.

9. The injection mechanism according to any one of claims 1 to 8, wherein The nozzle includes: One row of the gas passages; or, The gas passages are arranged in multiple rows, wherein adjacent rows of gas passages are staggered.

10. An air jet device for material sorting, characterized in that include: Gas source; A solenoid valve, connected to the gas source, is used to control and regulate gas flow; One or more blowing mechanisms as described in any one of claims 1-9, arranged side by side, are used to sort two or more types of materials. The blowing mechanism includes a pressure reducing pipeline and an exhaust channel. One end of the pressure reducing pipeline is connected to the air source, and one end of the exhaust channel is connected to the solenoid valve.

11. A sorter characterized by include: Belt conveyor systems are used to transport materials; An identification device is used to identify the material being transported by the belt conveyor to determine the category of the material; The air spray device as described in claim 10 is used to sort the material according to its category.

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