Precious metal dust recovery device

Abstract

The application provides a noble metal dust recovery device. When the noble metal dust recovery device is in operation, the airflow generated by the blowing part first enters the first spiral groove of the air inlet part through the blowing port of the air guide part. The airflow generates centrifugal motion in the accommodating cavity, and the noble metal dust in the air is effectively separated and collected by the dust collecting part, so as to realize the separation of the noble metal dust and the airflow, reduce the possibility of the dust entering the airflow again, and reduce the dependence on the filter core. In addition, the negative pressure is generated at the air suction port, and the suction efficiency of the external air containing noble metal dust is increased.

Description

Technical Field

[0001] This application relates to the field of precious metal recycling, and more particularly to a precious metal dust recycling device. Background Technology

[0002] Metal dust is generated during the manufacturing of jewelry or other precious metal crafts, such as when cutting, grinding, and polishing metals. This dust contains precious metals that have not been fully utilized.

[0003] However, long-term or high-concentration exposure to dust containing these precious metals (gold, silver, platinum, etc.) may still have adverse health effects, especially when the dust is inhaled through the respiratory tract.

[0004] Long-term inhalation of metallic dust, especially fine particles, can impair lung function, leading to breathing problems, asthma, or other lung diseases. In some cases, extremely fine metallic particles (such as nanoparticles) may pass through the alveoli and enter the bloodstream, affecting other organs.

[0005] Existing methods for recovering precious metal dust involve using dust collectors or air filtration systems to capture dust particles in the air. Dust particles entering the dust collector are carried by the airflow and re-enter the air, causing the precious metal dust to re-enter the air.

[0006] The existing method to prevent precious metal dust from re-entering the air is to use a filter element, which adsorbs the precious metal dust onto the filter element, thereby achieving a dust collection effect and preventing the precious metal dust from re-entering the air.

[0007] However, with prolonged use, precious metal dust will accumulate on the filter element in large quantities. The precious metal dust accumulated on the filter element will affect the adsorption effect of the dust collector, resulting in less air passing through the filter element, thus affecting the performance of the dust collector. Summary of the Invention

[0008] In view of this, it is necessary to provide a precious metal dust recovery device to solve the above problems.

[0009] An embodiment of this application provides a precious metal dust recovery device, comprising:

[0010] The blower is equipped with an air outlet.

[0011] An air guide component, one end of which is connected to the air outlet, and the air guide component has an air blowing port;

[0012] An air inlet has an internal cavity, and the air guide is housed within the cavity. A first spiral groove is formed on the inner wall of the air inlet, and the first spiral groove is located within the cavity. An air intake is formed on the air inlet, and the air intake communicates with the first spiral groove. The first spiral groove has a first spiral line, and the air outlet has a first air guide surface. The extension line of the first air guide surface intersects the first spiral line.

[0013] A dust collection component is installed on the air inlet component and surrounds the accommodating cavity with the air inlet component; the air guide component extends through the dust collection component into the accommodating cavity.

[0014] The air blower blows air into the air guide through the air outlet and into the first spiral groove to create a negative pressure at the air inlet, thereby drawing air containing precious metal dust into the accommodating cavity for centrifugal motion to separate the dust in the air and allow the dust collector to collect the precious metal dust.

[0015] In at least one embodiment of this application, the air guide is disposed on the axis of the air inlet, and the opening direction of the air outlet is arranged along the spiral direction of the first spiral groove.

[0016] In at least one embodiment of this application, there are two sets of air intakes and two sets of air outlets. The two sets of air outlets are located on both sides of the air guide, and the two sets of air intakes are located on both sides of the air inlet. The line connecting one set of air outlets to the other set of air outlets is called the first line, and the line connecting one set of air intakes to the other set of air intakes is called the second line. The angle between the first line and the second line is 90°.

[0017] In at least one embodiment of this application, the air intake is opened in the direction tangential to the first spiral groove.

[0018] In at least one embodiment of this application, the air intake has a second air guide surface, the extension of which is tangent to the first spiral line.

[0019] In at least one embodiment of this application, the air guide has a blowing section, a conical air guide section and a connecting section, the air outlet is opened on the outer peripheral surface of the blowing section, the blowing section is connected to the connecting section through the conical air guide section, and the connecting section is connected to the air guide.

[0020] In at least one embodiment of this application, the minimum diameter of the conical air guide is smaller than the diameter of the blowing part, a first blowing space is formed between the blowing part and the accommodating cavity, a second blowing space is formed between the conical air guide and the accommodating cavity, and the first blowing space and the second blowing space are connected.

[0021] In at least one embodiment of this application, one end of the conical air guide is connected to the blowing part, and the other end extends toward the connecting part. The outer peripheral surface of the conical air guide is recessed inward to form a second spiral groove, which extends from the blowing part toward the connecting part.

[0022] In at least one embodiment of this application, the dust collection component forms a dust collection chamber, and an air outlet is formed protruding from the center of the dust collection chamber. An air outlet hole is provided at one end of the air outlet near the conical air guide. The second spiral groove has an air guide position at one end near the air outlet. The second spiral groove has a second spiral line, and the tangent of the second spiral line at the air guide position intersects the axis of the air outlet hole.

[0023] In at least one embodiment of this application, the dust collection member has a dust blocking portion, which is formed at an inclination from one end of the air outlet portion toward a direction away from the axis of the air outlet portion.

[0024] This invention proposes a precious metal dust recovery device, which will have the following beneficial effects:

[0025] The aforementioned precious metal dust recovery device, when in operation, generates airflow from the blower, which first enters the first spiral groove of the inlet through the air guide. The airflow undergoes centrifugal motion within the accommodating cavity, effectively separating the precious metal dust from the air and collecting it with the dust collector. This separation of precious metal dust from the airflow reduces the possibility of dust re-entering the airflow, thereby reducing reliance on the filter element. Furthermore, a negative pressure is generated at the intake port, increasing the intake efficiency of external air containing precious metal dust. Attached Figure Description

[0026] Figure 1 This is a perspective view of the precious metal dust recovery device of the present invention;

[0027] Figure 2 for Figure 1 Exploded view of a precious metal dust recovery device;

[0028] Figure 3 for Figure 1 Cross-sectional view of a precious metal dust recovery device;

[0029] Figure 4 for Figure 3 A schematic diagram of the airflow direction and precious metal collection in a precious metal dust recovery device;

[0030] Figure 5 for Figure 2 3D view of the central air guide component;

[0031] Figure 6 for Figure 2 3D view of CIMC dust components;

[0032] Figure 7 for Figure 2 3D view of the central air intake component;

[0033] Figure 8 for Figure 6 Another perspective 3D view of the dust collection components;

[0034] Figure 9 for Figure 2 A three-dimensional view of the blower component.

[0035] Explanation of main component symbols

[0036] 100. Precious metal dust recovery device;

[0037] 110. Air blower; 110a. Air outlet;

[0038] 120, air guide component; 120a, air outlet; 120b, first air guide surface; 121, air blowing section; 122, conical air guide section; 123, connecting section; 120c, first air blowing space; 120d, second air blowing space; 122a, second spiral groove; 122b, air guide position;

[0039] 130, Air inlet; 130a, Receptacle; 130b, First spiral groove; 130c, Air intake; 130d, First spiral line; 130e, Second air guide surface;

[0040] 140. Dust collection component; 140a. Dust collection chamber; 141. Air outlet; 141a. Air outlet hole; 142. Dust baffle. Detailed Implementation

[0041] The embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0042] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or may also have an intervening component. When a component is considered to be "placed" on another component, it can be directly placed on the other component or may also have an intervening component. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "back," and similar expressions used in this article are for illustrative purposes only.

[0043] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0044] An embodiment of this application provides a precious metal dust recovery device 100, comprising:

[0045] The blower 110 has an air outlet 110a;

[0046] The air guide 120 has one end connected to the air outlet 110a, and the air guide 120 has an air outlet 120a.

[0047] An air inlet 130 has an internal accommodating cavity 130a. The air guide 120 is housed within the accommodating cavity 130a. A first spiral groove 130b is formed on the inner wall of the air inlet 130, and the first spiral groove 130b is located within the accommodating cavity 130a. An air intake 130c is formed on the air inlet 130, and the air intake 130c communicates with the first spiral groove 130b. The first spiral groove 130b has a first spiral line 130d. The air outlet 120a has a first air guiding surface 120b, and the extension line of the first air guiding surface 120b intersects the first spiral line 130d.

[0048] A dust collection component 140 is installed on the air inlet component 130 and surrounds the accommodating cavity 130a in the air inlet component 130. The air guide component 120 extends through the dust collection component 140 into the accommodating cavity 130a.

[0049] The air blower 110 blows air into the air guide 120 through the air outlet 110a and into the first spiral groove 130b through the air outlet 120a, so as to form a negative pressure at the air inlet 130c, so as to draw the air containing precious metal dust into the accommodating cavity 130a for centrifugal motion to separate the dust in the air, and so that the dust collector 140 collects the precious metal dust.

[0050] Please refer to Figures 1-9 In this embodiment, when the precious metal dust recovery device 100 is operating, the airflow generated by the blower 110 first enters the first spiral groove 130b of the air inlet 130 through the air outlet 120a of the air guide 120. The airflow generates centrifugal motion within the accommodating cavity 130a, effectively separating the precious metal dust in the air and collecting it by the dust collector 140. This achieves separation of the precious metal dust from the airflow, reducing the possibility of dust re-entering the airflow and thus reducing reliance on the filter element. Furthermore, a negative pressure is generated at the intake port 130c, increasing the intake efficiency of external air containing precious metal dust.

[0051] It should be noted that the blower 110 is a fan responsible for generating airflow and blowing it into the air guide 120 through the air outlet 110a. The main function of the blower 110 is to provide a power source to promote airflow and the movement of precious metal dust.

[0052] The air guide 120 is connected to the air outlet 110a of the blower 110 and has an air outlet 120a, which is responsible for directing and distributing the air force generated by the blower 110 into the air inlet 130 to ensure the correct flow direction of the airflow. The air outlet 120a is a through hole.

[0053] The air inlet 130 forms a accommodating cavity 130a, with a first spiral groove 130b on its inner wall. The air inlet 130 also has an air intake 130c, which communicates with the first spiral groove 130b. This allows the air containing precious metal dust to undergo centrifugal motion within the accommodating cavity 130a, which helps to separate the dust particles in the air. The air intake 130c is a through hole.

[0054] The dust collection component 140 is installed on the air inlet component 130, and is threadedly connected to the air inlet component 130, together forming a receiving cavity 130a. The air guide component 120 extends into the receiving cavity 130a through the dust collection component 140. The main function of the dust collection component 140 is to collect the precious metal dust separated by centrifugal motion.

[0055] It can effectively draw in air containing precious metal dust and separate the dust through centrifugal force, thereby improving the recovery efficiency of precious metal dust.

[0056] Effective recovery of precious metal dust in the space reduces the concentration of precious metal dust in the working environment, thereby reducing potential health risks to operators.

[0057] Since it does not rely on filter cartridges for dust collection, it avoids potential safety hazards such as overheating or sparks caused by filter cartridge clogging.

[0058] It should be further noted that the blower 110 is located outdoors.

[0059] The air guide 120 directs the blown air to the treatment area, preventing dust from directly contacting the motor. This protects the motor from dust corrosion and extends its service life.

[0060] The airflow path ensures that precious metal dust is effectively captured and collected without flowing back to the blower 110. The air inlet 130 can promote the flow of air (and dust within it) through a specific path, while the formation of negative pressure prevents dust from flowing back into the motor.

[0061] In at least one embodiment of this application, the air guide 120 is disposed on the axis of the air inlet 130, and the opening direction of the air outlet 120a is arranged along the spiral direction of the first spiral groove 130b.

[0062] Please refer to Figures 1-9In this embodiment, the airflow generated by the blower 110 is first introduced into the air inlet 130 through the blower port 120a.

[0063] Due to the central position of the air guide 120 and the specific direction of the air outlet 120a, the airflow already has a certain rotational force when it enters the air inlet 130.

[0064] When this airflow, which already possesses rotational power, enters the accommodating cavity 130a through the first spiral groove 130b, it will further enhance the rotational effect of the airflow, forming a highly efficient centrifugal separation environment.

[0065] Centrifugal force effectively separates precious metal dust from the air, which is then collected by the dust collection unit 140.

[0066] It maximizes the utilization efficiency of airflow and ensures a strong and stable rotating airflow, thereby improving the efficiency of separating precious metal dust.

[0067] By optimizing the airflow path and enhancing the rotation effect of the airflow, efficient dust recovery can be achieved with lower energy consumption.

[0068] Positioning the air guide 120 on the axis of the air inlet 130 helps to center and stabilize the airflow. This allows the airflow from the blower 110 to be delivered to the air inlet 130 more directly and efficiently, reducing energy loss during transmission.

[0069] The air outlet 120a is set according to the spiral direction of the first spiral groove 130b. The airflow blown in will enter the accommodating cavity 130a in the spiral direction of the first spiral groove 130b, which promotes the rotational flow of the airflow in the accommodating cavity 130a.

[0070] In at least one embodiment of this application, there are two sets of air intake ports 130c and two sets of air blowing ports 120a. The two sets of air blowing ports 120a are located on both sides of the air guide 120, and the two sets of air intake ports 130c are located on both sides of the air inlet 130. The line connecting one set of air blowing ports 120a to the other set of air blowing ports 120a is called the first line, and the line connecting one set of air intake ports 130c to the other set of air intake ports 130c is called the second line. The angle between the first line and the second line is 90°.

[0071] In at least one embodiment of this application, the air intake 130c is opened along the tangential direction of the first spiral groove 130b.

[0072] Please refer to Figures 1-9In this embodiment, when the precious metal dust collection device 100 is running, the airflow generated by the blower 110 through the blower 120a is effectively distributed to both sides of the precious metal dust collection device 100, which helps to form a stable rotating airflow.

[0073] Meanwhile, air containing precious metal dust is drawn in through the intake port 130c. Since the intake port 130c is opened along the tangential direction of the first spiral groove 130b, the incoming air will be guided along the spiral path, improving the efficiency of air-dust separation.

[0074] This not only promotes effective centrifugal separation, but also ensures that the dust collection unit 140 can efficiently collect the separated precious metal dust.

[0075] The arrangement of the air intake 130c and the air outlet 120a, and their synergistic effect with the first spiral groove 130b, greatly improves the efficiency of separating precious metal dust from air.

[0076] By reducing internal turbulence and providing a stable rotating airflow, the precious metal dust recovery device 100 operates more smoothly, reducing the risk of equipment wear or damage caused by unstable airflow.

[0077] The precious metal dust recovery device 100 is equipped with two sets of air intakes 130c and two sets of air outlets 120a. These outlets are placed on opposite sides of the air guide 120 and the air inlet 130 to achieve uniform distribution and effective control of airflow.

[0078] The line connecting the two sets of air outlets 120a (the first line) and the line connecting the two sets of air inlets 130c (the second line) form a 90° angle with each other. This ensures uniform airflow distribution while reducing airflow turbulence inside the equipment and improving recovery efficiency.

[0079] The intake port 130c is oriented along the tangent of the first spiral groove 130b. The incoming air is directed in the same direction as the first spiral groove 130b, thereby enhancing the effect of rotational flow.

[0080] In at least one embodiment of this application, the air intake 130c has a second air guide surface 130e, the extension of which is tangent to the first spiral line 130d.

[0081] Please refer to Figures 1-9 In this embodiment, when the precious metal dust recovery device 100 starts operating, outside air is drawn in through the air intake 130c. The air drawn in through the second air guide surface 130e is precisely guided so that its flow direction coincides with the rotating airflow path inside the accommodating cavity 130a.

[0082] This promotes the rotation effect of the incoming air and enhances the centrifugal separation efficiency within the accommodating cavity 130a, thereby more effectively separating dust particles containing precious metals.

[0083] Ultimately, the separated precious metal dust is captured and collected by the dust collection unit 140.

[0084] The second air guide surface 130e optimizes the airflow entering the precious metal dust recovery device 100, reduces airflow turbulence and unnecessary energy loss, and improves the overall efficiency of the system.

[0085] By precisely controlling the direction of airflow, the centrifugal separation effect is enhanced, thereby more effectively recovering precious metal dust and reducing resource waste.

[0086] The second air guide surface 130e of the air intake 130c is designed to optimize the airflow direction entering the precious metal dust recovery device 100.

[0087] The extension line of the second air guide surface 130e is tangent to the first spiral line 130d inside the precious metal dust recovery device 100. The incoming airflow will be guided into the receiving cavity 130a in a direction tangent to the first spiral line 130d. The air entering the receiving cavity 130a is guided to align with the rotating airflow path within the receiving cavity 130a to enhance the rotation effect of the airflow and improve the centrifugal separation efficiency within the receiving cavity 130a, thereby more effectively separating dust particles containing precious metals.

[0088] In at least one embodiment of this application, the air guide 120 has a blowing section 121, a conical air guide section 122 and a connecting section 123. The air outlet 120a is opened on the outer peripheral surface of the blowing section 121. The blowing section 121 is connected to the connecting section 123 through the conical air guide section 122. The connecting section 123 is connected to the air guide 110.

[0089] In at least one embodiment of this application, the minimum diameter of the conical air guide 122 is smaller than the diameter of the air blowing section 121, a first air blowing space 120c is formed between the air blowing section 121 and the accommodating cavity 130a, a second air blowing space 120d is formed between the conical air guide 122 and the accommodating cavity 130a, and the first air blowing space 120c and the second air blowing space 120d are in communication.

[0090] Please refer to Figures 1-9In this embodiment, when the precious metal dust collection device 100 is started, the airflow generated by the blower 110 first enters the precious metal dust collection device 100 through the connecting part 123. The airflow then enters the conical air guide part 122, and the airflow adjusted by the conical air guide part 122 enters the blower part 121, and is blown into the first blowing space 120c through the air outlet 120a on the outer peripheral surface of the blower part 121.

[0091] The airflow is guided by the first spiral groove 130b and then enters the second blowing space 120d. The first spiral groove 130b ensures that the airflow has formed effective rotational power before entering the second blowing space 120d, which promotes the separation of precious metal dust from the air.

[0092] By combining the conical air guide 122 and the blowing section 121, this precious metal dust recovery device 100 can precisely control the speed and direction of the airflow.

[0093] Precisely controlled airflow helps improve the efficiency of separating dust from the airflow, thereby increasing the recovery rate of precious metal dust and reducing resource waste.

[0094] In at least one embodiment of this application, one end of the conical air guide 122 is connected to the air blowing part 121, and the other end extends toward the connecting part 123. The outer peripheral surface of the conical air guide 122 is recessed inward to form a second spiral groove 122a, which extends from the air blowing part 121 toward the connecting part 123.

[0095] Please refer to Figures 1-9 In this embodiment, when the airflow starts from the blower 110, it first enters the blower section 121 and then flows through the second spiral groove 122a. When passing through the conical air guide section 122, the airflow is guided by the second spiral groove 122a, forming a more concentrated and high-speed rotating flow.

[0096] The rotating airflow then enters the connecting section 123, continuing its rotation until it reaches the working area of ​​the precious metal dust recovery device 100. During this process, the acceleration and rotation characteristics of the airflow help improve the subsequent dust separation efficiency.

[0097] By combining the conical air guide 122 with the second spiral groove 122a, the precious metal dust recovery device 100 can more precisely control the direction and speed of the airflow, thereby increasing the effective separation efficiency of the dust.

[0098] The rotational force generated by the airflow as it passes through the conical guide section 122 helps to more effectively separate precious metal dust from the airflow, improving the overall efficiency of the recovery process and further increasing centrifugal force.

[0099] The outer peripheral surface of the conical air guide 122 is provided with an inwardly recessed second spiral groove 122a, which extends from the blowing part 121 along the conical air guide 122 to the connecting part 123. This not only increases the rotational power of the airflow, but also promotes the acceleration and stabilization of the airflow during its movement.

[0100] In at least one embodiment of this application, the dust collection member 140 forms a dust collection chamber 140a, and an air outlet 141 protrudes from the center of the dust collection chamber 140a. An air outlet hole 141a is provided at one end of the air outlet 141 near the conical air guide 122. An air guide position 122b is provided at one end of the second spiral groove 122a near the air outlet 141. The second spiral groove 122a has a second spiral line, and the tangent of the second spiral line at the air guide position 122b intersects the axis of the air outlet hole 141a.

[0101] Please refer to Figures 1-9 In this embodiment, the dust collection chamber 140a is used to collect precious metal dust separated by airflow.

[0102] A central air outlet 141 protrudes from the dust collection chamber 140a, allowing clean air to be discharged from the air outlet 141a after dust is collected.

[0103] The air outlet 141a is located at one end of the air outlet 141 near the conical air guide 122, ensuring that the airflow can be effectively discharged from the precious metal dust recovery device 100 after the dust separation and collection process.

[0104] The second spiral groove 122a is provided with an air guide position 122b to optimize the path of airflow into the air outlet 141. The second spiral groove 122a is arranged along the air guide position 122b so that the airflow is correctly guided at this point.

[0105] The helix of the second spiral groove 122a intersects the axis of the air outlet 141a at the tangent of the air guide position 122b, which helps to achieve smooth airflow turning and effective discharge.

[0106] The precious metal dust recovery device 100 can efficiently collect precious metal dust through the dust collection chamber 140a and the air outlet 141, while ensuring the effective discharge of clean airflow.

[0107] The second spiral groove 122a and its relationship with the axis of the air outlet 141a optimize the guidance and discharge of airflow, reduce turbulence in the airflow, and improve the operating efficiency of the precious metal dust recovery device 100.

[0108] In at least one embodiment of this application, the dust collection member 140 has a dust blocking portion 142, which is formed at an inclination from one end of the air outlet portion 141 in a direction away from the axis of the air outlet portion 141.

[0109] Please refer to Figures 1-9 In this embodiment, when the airflow carries precious metal dust into the dust collection chamber 140a, the dust is separated and collected into the dust collection chamber 140a under the action of gravity and airflow.

[0110] Some dust may try to escape the collection area due to the direction of airflow or airflow disturbance. At this time, the dust blocking part 142 plays its role in blocking this part of the dust, causing it to fall back into the collection area instead of being discharged with the airflow.

[0111] The inclined design of the dust-blocking part 142 guides the dust to move towards the bottom of the dust collection chamber 140a, further improving the collection efficiency.

[0112] By blocking the escaped dust, the dust-blocking section 142 ensures that a higher proportion of precious metal dust is effectively collected, thereby improving the overall recovery rate of the precious metal dust recovery device 100.

[0113] The inclined design of the dust baffle 142 reduces the disturbance that the clean airflow may cause to the collected dust, thereby reducing the resuspension and overflow of dust and ensuring the stability of the collection effect.

[0114] The dust-blocking section 142 is part of the dust collection component 140. It is formed at an angle from one end of the air outlet 141 away from the axis of the air outlet 141. It can effectively block dust that may escape during the collection process, ensuring that dust is effectively collected and reducing resuspension.

[0115] In this embodiment, the precious metal dust recovery device 100 is activated, and the blower 110 begins operation, blowing gas into the air guide 120. The gas is first blown out through the blower port 120a and directly enters the first spiral groove 130b.

[0116] The blown gas enters the first blowing space 120°C and creates a negative pressure at the intake port 130°C. This negative pressure helps to draw in outside air and simultaneously begins to generate centrifugal force, which is crucial for separating precious metal dust from the air.

[0117] The gas passing through the first spiral groove 130b carries the initially separated precious metal dust into the second blowing space 120d. Here, due to the continued effect of centrifugal force, the separation of gas and dust is further enhanced.

[0118] Within the second blowing space 120d, the gas is further acted upon by the second spiral groove 122a, enhancing the centrifugal separation effect and enabling the precious metal dust to be separated from the gas more effectively.

[0119] The separated clean gas is finally discharged from the precious metal dust recovery device 100 through the air outlet 141a. In this process, the vast majority of precious metal dust has been separated from the gas and left inside the precious metal dust recovery device 100.

[0120] The separated precious metal dust falls into the dust collection chamber 140a due to gravity and centrifugal force, thus completing the precious metal dust recovery process.

[0121] This ensures that precious metal dust can be efficiently separated and collected from the gas, minimizing resource waste.

[0122] By utilizing centrifugal force and negative pressure, separation efficiency is improved while energy consumption is reduced.

[0123] Through an effective dust separation and recycling mechanism, the need for cleaning and maintenance of the equipment is reduced, and the operational stability and service life of the precious metal dust recovery device 100 are improved.

[0124] The above description is merely an embodiment of this application. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of this application, but these improvements all fall within the protection scope of this application.

Claims

1. A precious metal dust recovery device, characterized in that, include: The blower is equipped with an air outlet. An air guide component, one end of which is connected to the air outlet, and the air guide component has an air blowing port; An air inlet has an internal cavity, and the air guide is housed within the cavity. A first spiral groove is formed on the inner wall of the air inlet, and the first spiral groove is located within the cavity. An air intake is formed on the air inlet, and the air intake communicates with the first spiral groove. The first spiral groove has a first spiral line, and the air outlet has a first air guide surface. The extension line of the first air guide surface intersects the first spiral line. A dust collection component is installed on the air inlet component and surrounds the air inlet component to form the receiving cavity; the air guide component extends through the dust collection component into the receiving cavity. The air blower blows air into the air guide through the air outlet and into the first spiral groove to create a negative pressure at the air inlet, thereby drawing air containing precious metal dust into the accommodating cavity for centrifugal motion to separate the dust in the air and allow the dust collector to collect the precious metal dust.

2. The precious metal dust recovery device according to claim 1, characterized in that, The air guide is located on the axis of the air inlet, and the opening direction of the air outlet is set along the spiral direction of the first spiral groove.

3. The precious metal dust recovery device according to claim 1, characterized in that, There are two sets of air inlets and two sets of air outlets. The two sets of air outlets are located on both sides of the air guide, and the two sets of air inlets are located on both sides of the air inlet. The line connecting one set of air outlets to the other set of air outlets is called the first line, and the line connecting one set of air inlets to the other set of air inlets is called the second line. The angle between the first line and the second line is 90°.

4. The precious metal dust recovery device according to claim 1, characterized in that, The air intake is opened along the tangent of the first spiral groove.

5. The precious metal dust recovery device according to claim 4, characterized in that, The air intake has a second air guide surface, and the extension line of the second air guide surface is tangent to the first spiral line.

6. The precious metal dust recovery device according to claim 1, characterized in that, The air guide has a blowing section, a conical air guide section and a connecting section. The air outlet is opened on the outer peripheral surface of the blowing section. The blowing section is connected to the connecting section through the conical air guide section, and the connecting section is connected to the air guide.

7. The precious metal dust recovery device according to claim 6, characterized in that, The minimum diameter of the conical air guide is smaller than the diameter of the blowing part. A first blowing space is formed between the blowing part and the accommodating cavity, and a second blowing space is formed between the conical air guide and the accommodating cavity. The first blowing space and the second blowing space are connected.

8. The precious metal dust recovery device according to claim 7, characterized in that, One end of the conical air guide is connected to the blowing part, and the other end extends towards the connecting part. The outer circumference of the conical air guide is recessed inward to form a second spiral groove, which extends from the blowing part towards the connecting part.

9. The precious metal dust recovery device according to claim 8, characterized in that, The dust collection component has a dust collection chamber, and an air outlet is formed at the center of the dust collection chamber. An air outlet hole is opened at one end of the air outlet near the conical air guide. The second spiral groove has an air guide position at one end near the air outlet. The second spiral groove has a second spiral line, and the tangent of the second spiral line at the air guide position intersects the axis of the air outlet hole.

10. The precious metal dust recovery device according to claim 9, characterized in that, The dust collection component has a dust-blocking portion, which is formed at an inclination from one end of the air outlet portion toward a direction away from the axis of the air outlet portion.

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