Micro-powder purification equipment for artificial diamond processing

Abstract

The invention relates to the technical field of diamond purification, in particular to micro-powder purification equipment for artificial diamond processing, which comprises a pickling tank, the top cover is assembled at the top of the pickling tank; the mounting frame is fixed on the top cover; the first opening is formed in the mounting frame; the second opening is formed in the top cover, and the second opening is right opposite to the first opening; the lifting structure is arranged in the pickling tank; the stirring structure is arranged in the pickling tank; and the driving structure is arranged on the mounting frame. Compared with the prior art, the screen drum is driven by the motor to reciprocate up and down in the pickling solution, so that the diamond micro-powder is uniformly dispersed in the pickling solution, the micro-powder is prevented from settling to the bottom, the contact area of the micro-powder and the pickling solution is increased, and the purification and impurity removal effects of the pickling solution on the diamond micro-powder are improved; the stirring piece in the equipment is driven by the motor to rotate through the gear transmission system, the pickling solution is stirred, and the fluidity of the pickling solution is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of diamond purification, in particular to a micro powder purification device used for artificial diamond processing. Background Art

[0002] The micro powder purification equipment for artificial diamond processing is used to crush and grind artificial diamond raw materials into micron-sized diamond powder. Through scientific and reasonable crushing and shaping processes, coarse-grained diamond raw materials can be quickly crushed into micro powder particles of the required size and the particle shape can be optimized.

[0003] Acid washing and purification is a common purification method. Acid washing and purification of diamond micropowder refers to the process of placing diamond micropowder in an acidic solution and removing impurities therein through chemical reactions, thereby improving the purity and quality of diamond micropowder. Impurities in diamond micropowder, such as metal catalysts, graphite, etc., usually have chemical properties different from those of diamond. These impurities can react chemically with acids to generate soluble salts or oxides, which are then removed. Diamond itself has extremely high chemical stability and is not easy to react with acid, so it can maintain its original properties and structure during the acid washing process. Various impurities in diamond micropowder can be removed through acid washing. After searching, a Chinese patent with announcement number CN213033137U discloses a diamond micropowder purification and refining device, including a drum-shaped shell, a gear ring is fixed to the front of the side wall of the drum-shaped shell, a gear is meshed on the lower right side of the gear ring, a drive assembly is connected to the front side of the gear, a support rod is arranged at the front side of the center position of the drum-shaped shell, a support tube is connected to the rear side of the center position of the drum-shaped shell, and a support rod is arranged at the front side of the center position of the drum-shaped shell. The outer ends of the support rods and the outer ends of the support tubes are rotatably connected to the support frame, a plurality of stirring rods are arranged on the inner side of the drum-shaped shell, a stirring spring is arranged on the outer side of the stirring rod, a plurality of inclined plates are arranged on the side wall of the drum-shaped shell, a first feeding port is arranged on the upper side of the drum-shaped shell, a second feeding port is arranged on the lower side of the drum-shaped shell, solenoid valves are arranged on the outer sides of the first feeding port and the second feeding port, and a filter screen is arranged in the middle of the first feeding port. The above scheme has the advantages of simple structure, safety and practicality, fast adjustment, convenient operation, good purification effect and short purification cycle. However, the above scheme still has the following shortcomings when it is actually used: When the above scheme is actually used, the diamond powder is easily deposited at the bottom of the device under the action of gravity. This phenomenon will cause a series of disadvantages. The deposited diamond powder layer will hinder the effective penetration and diffusion of the pickling solution, resulting in insufficient contact between the diamond powder and the pickling solution, so that some powders cannot undergo sufficient chemical reactions, the purification effect is uneven, and the powder purification in some areas is not thorough. In addition, due to the excessively high local concentration caused by the deposition of powders, the effective ingredients in the pickling solution will be consumed too quickly, which not only affects the purification efficiency, but also increases the replacement frequency and cost of the pickling solution. In summary, the deposition problem of diamond powder seriously affects the purification effect and economic benefits.

[0004] Therefore, the present application provides a micro powder purification device for artificial diamond processing. Summary of the invention

[0005] In view of this, the object of the present invention is to provide a micro powder purification device for artificial diamond processing.

[0006] Based on the above purpose, the present invention provides a micro powder purification device for artificial diamond processing, comprising: Pickling tanks; A top cover, mounted on the top of the pickling tank; A mounting frame fixed on the top cover; Opening 1, opened on the mounting frame; Opening 2 is provided on the top cover, and the opening 2 is arranged opposite to the opening 1; A lifting structure is arranged inside the pickling tank; A stirring structure is arranged inside the pickling tank; The driving structure is arranged on the mounting frame.

[0007] Preferably, the lifting structure comprises: A mounting ring, placed inside the pickling tank; A sieve cylinder is fixed on the inner ring of the mounting ring, and the top of the sieve cylinder is open; Two guide blocks, both fixed on the mounting ring; The two guide rods are both fixed on the inner wall of the pickling tank, and the two guide blocks are respectively slidably sleeved on the two guide rods.

[0008] Preferably, the stirring structure comprises: Two connecting rods are fixed on the inner surface of the screen cylinder; A gear rack, fixed to one end of the two connecting rods close to each other; A stirring member, rotatably mounted on the gear frame; A first bevel gear, fixedly sleeved on the stirring member; A rotating shaft, rotatably mounted on the gear frame; A second bevel gear, fixedly sleeved on the rotating shaft, the second bevel gear and the first bevel gear meshing with each other; A driving gear, fixedly sleeved on the rotating shaft; A fixing rod fixed on the inner wall of the pickling tank; A rack is fixed to the other end of the fixing rod, and the rack is meshed with the driving gear.

[0009] Preferably, the stirring member comprises a vertical shaft and a stirring disk, the stirring disk is fixed to the bottom end of the vertical shaft, and a plurality of stirring blades distributed in a circumferential array are fixed on the stirring disk.

[0010] Preferably, the driving structure comprises: A motor, mounted on the mounting frame; An eccentric wheel is fixedly sleeved on the output shaft of the motor, and the eccentric wheel is eccentrically arranged between the output shaft of the motor; A guide rail fixed on the mounting frame; A slide seat, slidably assembled on the guide rail; A push rod, fixed on the top surface of the slide seat; A pull rope has one end connected to the top rod and the other end connected to the mounting ring.

[0011] Preferably, an aeration structure is provided at the inner bottom of the sieve drum, and an air supply structure is provided on the mounting frame, and the aeration structure comprises: an annular tube fixed to the inner bottom of the screen cylinder; A plurality of air jets are arranged on the annular tube, and each of the air jets is arranged upward.

[0012] Preferably, the air supply structure comprises: A mounting box, fixed on the mounting frame; A strip-shaped opening is provided on the top surface of the installation box; A sliding plate, slidably disposed inside the installation box; A top plate fixed on the sliding plate, wherein the top plate is slidably arranged in the strip-shaped opening; An air bag, one end of which is connected to the inner surface of the installation box and the other end of which is connected to the sliding plate; A spring, disposed inside the airbag; Two non-return valves; One end of the two air tubes is connected to the air bag, and the two one-way valves are respectively installed on the two air tubes, and one end of one of the air tubes away from the air bag is connected to the annular tube.

[0013] Preferably, the plurality of air jets are evenly distributed on the annular tube.

[0014] Preferably, the flow limiting directions of the two one-way valves are opposite.

[0015] Preferably, a pulley is fixed on the mounting frame, and the pull rope passes around the pulley.

[0016] Beneficial effects of the present invention: 1. Reciprocating motion of the screen drum optimizes dispersion: The screen drum is driven by a motor to move up and down in the pickling liquid. This innovative design effectively solves the problem of diamond powder deposition. The up and down motion of the screen drum not only ensures the uniform dispersion of the powder in the pickling liquid and avoids the deposition caused by gravity, but also significantly increases the contact area between the powder and the pickling liquid. The enlarged contact area enables the pickling liquid to react more comprehensively with the diamond powder, thereby significantly improving the purification and impurity removal effect. At the same time, the movement of the screen drum also helps to break up the agglomeration of the powder and improve the purification efficiency. 2. The stirring element rotates to enhance fluidity: The stirring element in the equipment is driven to rotate by the motor through the gear transmission system. This design further enhances the fluidity of the pickling liquid. The rotation of the stirring element not only generates eddy currents and shear forces, but also promotes the uniform distribution of dissolved oxygen in the pickling liquid. This enhanced fluidity accelerates the mixing and contact between the pickling liquid and the diamond powder, promotes the chemical reaction, and thus improves the purification efficiency. In addition, the rotation of the stirring element also helps to flush impurities on the inner wall and bottom of the screen drum, further improving the purification quality; 3. Aeration system improves reaction efficiency: The annular tube at the bottom of the screen drum cooperates with the air bag and one-way valve system to continuously pump air into the pickling liquid to achieve aeration. Aeration not only increases the oxygen content in the pickling liquid and promotes the chemical reaction, but also drives the suspension and dispersion of micro-powder particles by forming tiny bubbles, further improving the purification effect. At the same time, the aeration action helps to break the local concentration gradient in the pickling liquid, making the reaction more uniform and sufficient; 4. Motor linkage reduces energy consumption costs: Since aeration and stirring are driven by the same motor, this design simplifies the equipment structure, reduces manufacturing costs and maintenance difficulties. While driving the screen drum to move up and down, the motor drives the stirring member to rotate through the gear transmission system, and realizes aeration through the annular tube and the air bag system. This linkage effect ensures the synchronization of aeration and stirring, so that the oxygen content and fluidity in the pickling liquid are continuously and stably improved. This design not only improves the overall operating efficiency of the equipment, but also reduces energy consumption and operating costs. At the same time, the simplification of the equipment structure makes operation easier and maintenance easier, further improving the reliability and service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the cutaway structure of the pickling tank; Figure 3 It is a structural schematic diagram of the lifting structure and the stirring structure; Figure 4 is a schematic diagram of the structure of the stirring structure; Figure 5 It is a structural schematic diagram of the lifting structure and the stirring structure from another perspective; Figure 6 It is a structural schematic diagram of the driving structure and the air supply structure; Figure 7 for Figure 2 A magnified view of the structure at A; Figure 8 for Figure 5 A magnified view of the structure at B; Fig. 9 for Figure 6 Enlarged view of the structure at location C.

[0019] The markings in the figure are: 1. Pickling tank; 2. Top cover; 3. Mounting frame; 4. Opening 1; 5. Opening 2; 61. Mounting ring; 62. Screen drum; 63. Guide block; 64. Guide rod; 71. Connecting rod; 72. Gear rack; 73. Agitator; 74. First bevel gear; 75. Rotating shaft; 76. Second bevel gear; 77. Driving gear; 78. Fixed rod; 79. Rack; 81. Motor; 82. Eccentric wheel; 83. Guide rail; 84. Sliding seat; 85. Push rod; 91. Annular tube; 92. Jet port; 101. Mounting box; 102. Strip port; 103. Sliding plate; 104. Top plate; 105. Air bag; 106. Spring; 107. One-way valve; 108. Air pipe. DETAILED DESCRIPTION

[0020] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0021] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figures 1 to 9 As shown, the micro powder purification equipment for artificial diamond processing includes a pickling tank 1; a top cover 2, which is assembled on the top of the pickling tank 1, and the top cover 2 is detachably arranged on the pickling tank 1; a mounting frame 3, which is fixed on the top cover 2; an opening 1 4, which is opened on the mounting frame 3; an opening 2 5, which is opened on the top cover 2, and the opening 2 5 is arranged opposite to the opening 1 4; like Figure 3 and Figure 5 As shown, the micro-powder purification device for artificial diamond processing also includes a lifting structure, which is arranged inside the pickling tank 1, and the lifting structure includes: a mounting ring 61, which is placed inside the pickling tank 1; a screen drum 62, which is fixed on the inner ring of the mounting ring 61, and the top of the screen drum 62 is open. The mesh on the screen drum 62 is fine enough that the diamond micro-powder cannot pass through the mesh; two guide blocks 63, both fixed on the mounting ring 61; two guide rods 64, both fixed on the inner wall of the pickling tank 1, and the two guide blocks 63 are respectively slidably sleeved on the two guide rods 64. When the screen drum 62 moves up and down, the two guide blocks 63 and the two guide rods 64 play a role in limiting the movement of the screen drum 62; like Figures 3 to 5As shown, the micro-powder purification device for artificial diamond processing also includes a stirring structure, which is arranged inside the pickling tank 1, and the stirring structure includes: two connecting rods 71, both fixed to the inner surface of the screen drum 62; a gear frame 72, fixed to one end of the two connecting rods 71 ​​close to each other; a stirring member 73, rotatably mounted on the gear frame 72, the stirring member 73 includes a vertical shaft and a stirring disk, the stirring disk is fixed to the bottom end of the vertical shaft, and a plurality of stirring blades distributed in a circumferential array are fixed on the stirring disk. The stirring member 73 can stir the pickling liquid when rotating, which can improve the fluidity of the pickling liquid, thereby improving the reaction effect between the pickling liquid and the diamond micro-powder; the first The bevel gear 74 is fixedly sleeved on the stirring member 73; the rotating shaft 75 is rotatably mounted on the gear frame 72; the second bevel gear 76 is fixedly sleeved on the rotating shaft 75, and the second bevel gear 76 and the first bevel gear 74 are meshed with each other; the driving gear 77 is fixedly sleeved on the rotating shaft 75; the fixing rod 78 is fixed on the inner wall of the pickling tank 1; the rack 79 is fixed to the other end of the fixing rod 78, and the rack 79 and the driving gear 77 are meshed with each other. When the gear frame 72 moves, the driving gear 77 thereon will move accordingly. During the movement, the driving gear 77 will always be meshed with the rack 79 and rotate under the action of the rack 79; like Figure 6 As shown, the micro powder purification equipment for artificial diamond processing also includes a driving structure, which is arranged on the mounting frame 3, and the driving structure includes: a motor 81, which is installed on the mounting frame 3; an eccentric wheel 82, which is fixedly sleeved on the output shaft of the motor 81, and the eccentric wheel 82 is eccentrically arranged between the output shaft of the motor 81; a guide rail 83, which is fixed on the mounting frame 3; a slide 84, which is slidably assembled on the guide rail 83, and during the movement of the top rod 85, the guide rail 83 and the slide 84 play a role in limiting the movement of the top rod 85; the top rod 85 is fixed on the top surface of the slide 84; a pull rope, one end of which is connected to the top rod 85, and the other end is connected to the mounting ring 61, and a pulley is fixed on the mounting frame 3, and the pull rope passes around the pulley, and the setting of the pulley facilitates the pull rope to apply tension to the mounting ring 61; In the use process of the micro-powder purification equipment for artificial diamond processing introduced in the present invention, the operator first places the diamond micro-powder inside the screen drum 62, and then injects the pickling liquid into the pickling tank 1. The pickling liquid penetrates into the screen drum 62 through the mesh of the screen drum 62 and mixes with the diamond micro-powder to achieve the purpose of pickling and purification. At this time, the operator starts the motor 81, and the rotation of the motor 81 drives the eccentric wheel 82 to rotate accordingly. The eccentric wheel 82 periodically squeezes the push rod 85 during the rotation process, causing the push rod 85 to move away from the motor 81. The movement of the push rod 85 pulls the mounting ring 61 through the pull rope, thereby driving the screen drum 62 to rise together. When the eccentric wheel 82 and the push rod 85 During separation, the push rod 85 and the screen drum 62 naturally descend under the action of gravity. With the continuous operation of the motor 81, the screen drum 62 moves up and down in the pickling tank 1, driving the diamond powder therein to move and evenly disperse in the pickling liquid. This design not only effectively prevents the deposition of diamond powder, but also increases the contact area between the diamond powder and the pickling liquid, significantly improving the purification and impurity removal effect. It is worth noting that during the movement of the push rod 85, the guide rail 83 and the slide seat 84 play a good limiting role to ensure the stable movement of the push rod 85. At the same time, when the screen drum 62 moves up and down, the two guide blocks 63 and the guide rod 64 also play a limiting role to ensure the stable movement of the screen drum 62. When the screen drum 62 moves up and down, the gear rack 72 is driven to move by the two connecting rods 71. When the gear rack 72 moves, the driving gear 77 thereon moves accordingly and keeps meshing with the rack 79, and then rotates under the guidance of the rack 79. The rotation of the driving gear 77 drives the rotation of the rotating shaft 75. The second bevel gear 76 on the rotating shaft 75 rotates accordingly and meshes with the first bevel gear 74, driving the agitator 73 to rotate. The rotation of the agitator 73 enhances the fluidity of the pickling solution, thereby improving the reaction efficiency between the pickling solution and the diamond powder. like Figure 5 As shown, the inner bottom of the sieve drum 62 is provided with an aeration structure, and the aeration structure includes: an annular tube 91, fixed to the inner bottom of the sieve drum 62; a plurality of jet ports 92, all of which are provided on the annular tube 91, each of which is arranged upward, and the plurality of jet ports 92 are evenly distributed on the annular tube 91, which is conducive to the uniform injection of gas into the interior of the pickling tank 1; like Figure 2 and Figure 7As shown, an air supply structure is provided on the mounting frame 3, and the air supply structure includes: a mounting box 101, fixed on the mounting frame 3; a strip-shaped opening 102, opened on the top surface of the mounting box 101; a sliding plate 103, slidably arranged inside the mounting box 101; a top plate 104, fixed on the sliding plate 103, and the top plate 104 is slidably arranged inside the strip-shaped opening 102; an air bag 105, one end of which is connected to the inner surface of the mounting box 101, and the other end is connected to the sliding plate 103; a spring 106, which is placed inside the air bag 105; two one-way valves 107, and the flow limiting directions of the two one-way valves 107 are opposite; two air pipes 108, one end of which is connected to the air bag 105, and the two one-way valves 107 are respectively installed on the two air pipes 108, and one end of one of the air pipes 108 away from the air bag 105 is connected to the annular tube 91; The inner bottom of the screen drum 62 is also equipped with an annular tube 91 for aeration, and the aeration action is performed synchronously with the pickling and impurity removal process. Specifically, when the motor 81 drives the eccentric wheel 82 to rotate, the eccentric wheel 82 will also periodically press the top plate 104, causing the top plate 104 to drive the sliding plate 103 to reciprocate. During the reciprocating motion, the sliding plate 103 continuously compresses and releases the airbag 105, and the spring 106 built into the airbag 105 is responsible for the automatic reset of the airbag 105. The airbag 105 is connected to the outside world through two air pipes 108, and the two air pipes 108 are respectively equipped with a one-way valve 107, one of which is 107 ensures that the airflow can only enter the inside of the airbag 105, and another one-way valve 107 ensures that the airflow can only be discharged from the airbag 105. Therefore, when the airbag 105 is compressed, the gas inside it will be pressed into the annular tube 91 through the corresponding air pipe 108; and when the airbag 105 is released, it inhales air from the external environment through the corresponding air pipe 108. As the motor 81 continues to operate, the airbag 105 continuously pumps air into the annular tube 91, and the gas is then ejected through multiple jet ports 92 and directly aerated toward the inside of the pickling tank 1. This aeration action can further enhance the reaction efficiency between the pickling solution and the diamond micropowder.

[0023] It should be understood by those skilled in the art that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0024] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A micro powder purification device for artificial diamond processing, characterized in that: include: Pickling tank (1); A top cover (2) mounted on the top of the pickling tank (1); A mounting frame (3) fixed on the top cover (2); An opening (4) is provided on the mounting frame (3); Opening 2 (5) is provided on the top cover (2), and the opening 2 (5) is arranged opposite to the opening 1 (4); A lifting structure, arranged inside the pickling tank (1); A stirring structure, arranged inside the pickling tank (1); A driving structure is arranged on the mounting frame (3).

2. The micro powder purification equipment for artificial diamond processing according to claim 1, characterized in that: The lifting structure comprises: A mounting ring (61) is placed inside the pickling tank (1); A sieve cylinder (62) is fixed on the inner ring of the mounting ring (61), and the top end of the sieve cylinder (62) is open; Two guide blocks (63) are both fixed on the mounting ring (61); The two guide rods (64) are both fixed on the inner wall of the pickling tank (1), and the two guide blocks (63) are respectively slidably mounted on the two guide rods (64).

3. The micro powder purification equipment for artificial diamond processing according to claim 2 is characterized in that: The stirring structure comprises: Two connecting rods (71) are both fixed to the inner surface of the screen cylinder (62); A gear rack (72) fixed to ends of the two connecting rods (71) close to each other; A stirring member (73) rotatably mounted on the gear frame (72); A first bevel gear (74) fixedly sleeved on the stirring member (73); A rotating shaft (75) rotatably mounted on the gear frame (72); a second bevel gear (76) fixedly sleeved on the rotating shaft (75), the second bevel gear (76) and the first bevel gear (74) being meshed with each other; A driving gear (77) fixedly sleeved on the rotating shaft (75); A fixing rod (78) fixed on the inner wall of the pickling tank (1); A rack (79) is fixed to the other end of the fixing rod (78), and the rack (79) and the driving gear (77) are meshed with each other.

4. The micro powder purification equipment for artificial diamond processing according to claim 3 is characterized in that: The stirring member (73) comprises a vertical shaft and a stirring disk, wherein the stirring disk is fixed to the bottom end of the vertical shaft, and a plurality of stirring blades distributed in a circumferential array are fixed to the stirring disk.

5. The micro powder purification equipment for artificial diamond processing according to claim 4, characterized in that: The driving structure comprises: A motor (81) mounted on the mounting frame (3); An eccentric wheel (82) is fixedly sleeved on the output shaft of the motor (81), and the eccentric wheel (82) is eccentrically arranged between the output shaft of the motor (81); A guide rail (83) fixed on the mounting frame (3); A slide seat (84) slidably mounted on the guide rail (83); A push rod (85) fixed on the top surface of the slide seat (84); A pull rope, one end of which is connected to the top rod (85), and the other end of which is connected to the mounting ring (61).

6. The micro powder purification equipment for artificial diamond processing according to claim 2, characterized in that: An aeration structure is provided at the inner bottom of the sieve cylinder (62), and an air supply structure is provided on the mounting frame (3), wherein the aeration structure comprises: an annular tube (91) fixed to the inner bottom of the screen cylinder (62); A plurality of air jets (92) are provided on the annular tube (91), and each of the air jets (92) is arranged to face upward.

7. The micro powder purification equipment for artificial diamond processing according to claim 6, characterized in that: The air supply structure comprises: A mounting box (101) fixed on the mounting frame (3); A strip-shaped opening (102) is provided on the top surface of the installation box (101); A sliding plate (103) slidably disposed inside the installation box (101); A top plate (104) is fixed on the sliding plate (103), and the top plate (104) is slidably disposed in the strip-shaped opening (102); An air bag (105), one end of which is connected to the inner surface of the installation box (101), and the other end of which is connected to the sliding plate (103); A spring (106) is placed inside the airbag (105); two one-way valves (107); One end of the two air tubes (108) is connected to the air bag (105), and the two one-way valves (107) are respectively installed on the two air tubes (108). One end of one of the air tubes (108) away from the air bag (105) is connected to the annular tube (91).

8. The micro powder purification equipment for artificial diamond processing according to claim 6, characterized in that: The plurality of air jets (92) are evenly distributed on the annular tube (91).

9. The micro powder purification equipment for artificial diamond processing according to claim 7, characterized in that: The flow limiting directions of the two one-way valves (107) are opposite.

10. The micro powder purification equipment for artificial diamond processing according to claim 5, characterized in that: A pulley is fixed on the mounting frame (3), and the pull rope passes around the pulley.

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