A stirring device for nylon powder

Abstract

The utility model provides a kind of nylon powder stirring device, it is related to stirring device technical field, including mixing tank, jacket, conical hopper, stirring, feeding piece, shaftless screw conveying assembly, with dust removal interface's feed pipe, static electricity structure;Jacket is arranged on the outer wall of mixing tank, circulating cold water is passed into in jacket and is cooled, avoid the temperature of mixing tank inside too high to influence nylon material;Stirring, feeding piece is stirred after mixing tank inner cavity material, by shaftless screw conveying assembly, conical hopper inner material is conveyed downward, when opening the discharge port below mixing tank, it can more thoroughly discharge, reduce discharge residue, reduce cleaning difficulty;Static electricity structure is used to eliminate the static electricity generated in the process of stirring nylon powder, and in mixing tank, it plays the role of turbulence to material flow, improves mixing efficiency, avoids the related problems and risks caused by static electricity.

Description

Technical Field

[0001] This utility model relates to the field of stirring device technology, and in particular to a stirring device for nylon powder. Background Technology

[0002] The descriptions in this section provide background information relevant to this disclosure only and do not constitute prior art.

[0003] Stirring before adding nylon powder can eliminate internal lumps. However, there are some shortcomings to using general-purpose stirring devices for mixing nylon powder:

[0004] Nylon powder is prone to generating a large amount of static electricity during high-speed stirring and friction, causing the powder to adhere to the tank wall and stirring shaft, which not only affects the mixing uniformity but also poses a risk of dust explosion.

[0005] Mechanical stirring generates heat. Nylon materials are sensitive to temperature, and excessively high temperatures may cause the powder to soften, stick together, or even melt and clump in some areas.

[0006] Nylon powder is prone to residue during discharge, causing batch-to-batch contamination and making cleaning difficult. Utility Model Content

[0007] The purpose of this invention is to provide a stirring device for nylon powder, which features: circulating cold water in the jacket for cooling to prevent excessively high internal temperature of the mixing tank from affecting the nylon material; conveying the material downwards from the conical hopper via a shaftless screw conveyor assembly to reduce material residue; and eliminating static electricity generated by the nylon powder during stirring. This addresses the problems of nylon powder easily generating large amounts of static electricity during high-speed stirring and friction, causing powder to adhere to the tank wall and stirring shaft, affecting mixing uniformity and posing a risk of dust explosion; mechanical stirring generates heat, and nylon material is temperature-sensitive, with excessively high temperatures potentially causing powder softening, adhesion, or even localized melting and clumping; and nylon powder residue is easily left during discharge, causing batch-to-batch contamination and making cleaning difficult.

[0008] This utility model provides a stirring device for nylon powder, comprising:

[0009] A mixing tank, the outer wall of which is fixedly fitted with a jacket;

[0010] The lower end of the mixing tank is a conical hopper;

[0011] A stirring and feeding component is fixedly assembled in the middle of the top surface of the mixing tank;

[0012] The lower end of the stirring and feeding component is fixed with a shaftless screw conveyor assembly, which is coaxially placed inside the conical hopper.

[0013] The top edge of the mixing tank is fixedly connected to a feed pipe with a dust removal interface;

[0014] The mixing tank is fixedly equipped with an anti-static structure, the grounding terminal of which is embedded in the ground.

[0015] The static elimination structure is located on the static elimination part of the inner wall of the mixing tank and is distributed at intervals with the stirring component of the stirring and feeding components.

[0016] As a further optimization, in order to mix the material at the upper end of the mixing tank cavity through the stirring structure, a shaftless screw conveyor assembly is used to mix the material entering the conical hopper while simultaneously conveying the material downwards. The downward screw conveyor feeds the material when the valve of the discharge pipe with valve is opened, reducing material residue and facilitating subsequent cleaning, thus achieving controllable flow rate discharge. The stirring and conveying components include:

[0017] A stirring structure, the upper end of which is fixedly assembled to the middle of the top surface of the mixing tank;

[0018] The lower end of the stirring structure extends to the upper end of the inner cavity of the conical hopper;

[0019] The upper end of the shaftless screw conveyor assembly is fixedly connected to the lower end of the stirring structure;

[0020] The outer wall dimensions of the shaftless screw conveyor assembly gradually decrease from top to bottom along the inner cavity of the conical bucket.

[0021] As a further optimization, in order to mix and stir the material at the upper end of the mixing tank cavity, the first and second stirring blades on the left and right sides of the outer wall of the round rod are asymmetrically distributed to disrupt the flow field and eliminate the stirring dead zone. The stirring structure includes:

[0022] A drive motor is fixedly mounted on the middle of the top surface of the mixing tank;

[0023] The lower end of the drive motor output is fixedly connected to a round rod that passes through the top surface of the mixing tank, and its lower end extends to the upper end of the inner cavity of the conical hopper.

[0024] The first stirring blade is uniformly fixedly assembled on the left side of the outer wall of the round rod along the length direction.

[0025] The second stirring blade is uniformly fixedly assembled on the right side of the outer wall of the round rod along the length direction.

[0026] The first and second stirring blades are asymmetrically distributed.

[0027] The gaps between the first and second stirring blades are set correspondingly on the left and right sides.

[0028] As a further optimization, in order to generate a large number of positively and negatively charged gas clouds through the ion rod, the charges on objects passing through its ion radiation zone can be neutralized. Static electricity on the mixing tank, agitator, and feeding components is conducted to the ground via wires, achieving multiple layers of static electricity protection. The static electricity removal structure includes:

[0029] An ion rod, the fixed end of which is embedded in the inner wall of the mixing tank;

[0030] The ion bars are spaced apart within the stirring components of the stirring and feeding components;

[0031] The ion rod is electrically connected to an external power source.

[0032] A ground-mounted pole, which is inserted into the ground;

[0033] The upper end of the ground insertion rod is welded and fixed to the metal part of the outer wall of the mixing tank by means of a wire;

[0034] The upper metal component of the stirring and feeding device is electrically bonded to the outer metal component of the mixing tank.

[0035] As a further optimization, in order to mix the nylon powder, a conical hopper is used to guide the material, and the material is discharged through a valve on a valved discharge pipe. The mixing tank includes:

[0036] A cylinder with a cover plate screwed to its upper opening;

[0037] The lower end of the feed pipe of the dust removal interface is fixedly connected to the edge of the cover plate;

[0038] The upper end of the stirring and feeding component is fixedly connected to the middle of the top surface of the cover plate;

[0039] The upper end of the conical hopper is fixedly connected to the lower end of the cylinder, and the lower end of the conical hopper is fixedly connected to a discharge pipe with a valve.

[0040] As a further optimization, in order to connect the dust collector via a branch pipe and remove dust during the feeding process, the feed pipe of the dust collector interface includes:

[0041] The lower end of the feed pipe is fixedly connected to the edge of the cover plate;

[0042] A top cap is fastened to the upper end of the feed tube;

[0043] The feed pipe body has a branch pipe fixedly connected to its side wall, and a valve is fixedly installed on it.

[0044] As a further optimization, a ring-shaped support frame is fixedly fitted to the lower end of the mixing tank to support the device.

[0045] As a further optimization, to support the device and facilitate material feeding and unloading, the annular support frame includes:

[0046] The uprights have at least eight poles distributed around their circumference;

[0047] The upper end of the circumferentially distributed upright is welded and fixed to the lower end of the mixing tank;

[0048] A ring-shaped base plate is fixedly assembled at the lower end of the circumferentially distributed uprights.

[0049] The lower front end of the upright is provided with a material inlet / outlet window.

[0050] As a further optimization, in order to improve the mechanical strength of the ring support frame, an installation ring is fixedly sleeved on the upper end of the outer wall of the circumferentially distributed upright.

[0051] As a further optimization, in order to provide more stable support for the device, a conical base is fixedly mounted on the lower end of the annular base plate, with its larger end fixed to the ground.

[0052] This utility model provides an improved stirring device for nylon powder, which has the following improvements and advantages compared with the prior art:

[0053] A jacket is installed on the outer wall of the mixing tank, and circulating cold water is introduced into the jacket for cooling to prevent the internal temperature of the mixing tank from being too high and affecting the nylon material. After the stirring and feeding components stir the material in the inner cavity of the mixing tank, the material in the conical hopper is conveyed downward through the shaftless screw conveyor assembly. When the discharge port at the bottom of the mixing tank is opened, the material is discharged more thoroughly, reducing material residue and reducing cleaning difficulty. An anti-static structure is used to eliminate static electricity generated by the nylon powder during the stirring process and to turbulentize the material flow in the mixing tank, improving mixing efficiency and avoiding related problems and risks caused by static electricity. Attached Figure Description

[0054] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0055] Figure 1 This is a schematic diagram of the structure of this utility model;

[0056] Figure 2 This is a schematic cross-sectional view of a partial structure of the present invention;

[0057] Figure 3 This is a schematic diagram of the mixing and feeding components of this utility model;

[0058] Figure 4 This is a schematic diagram of the static elimination structure of this utility model;

[0059] Figure 5 This is a schematic diagram of the ring-shaped support frame structure of this utility model.

[0060] Explanation of reference numerals in the attached figures:

[0061] 1-Mixing tank, 11-Cylinder, 12-Conical hopper, 13-Discharge pipe with valve, 2-Jacket, 3-Feed pipe with dust removal interface, 31-Feed pipe body, 32-Top cap, 33-Branch pipe, 34-Valve, 4-Annular support frame, 41-Upright pole, 42-Mounting ring body, 43-Annular bottom plate, 44-Inlet / outlet window, 45-Inlet / outlet window, 5-Static elimination structure, 51-Ion rod, 52-Ground insertion rod, 6-Agitator and feeding component, 61-Agitator structure, 611-Drive motor, 612-Round rod, 613-First agitator blade, 614-Second agitator blade, 62-Shaftless screw conveyor assembly. Detailed Implementation

[0062] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0063] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0064] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0065] Please see Figure 1-5 This utility model provides a technical solution: a stirring device for nylon powder, comprising:

[0066] Mixing tank 1, with a jacket 2 fixedly fitted to its outer wall;

[0067] The lower end of the mixing tank 1 is a conical hopper 12;

[0068] A stirring and feeding component 6 is fixedly assembled in the middle of the top surface of the mixing tank 1;

[0069] The lower end of the mixing and feeding component 6 is fixed with a shaftless screw conveyor assembly 62, which is coaxially placed inside the conical hopper 12;

[0070] The top edge of the mixing tank 1 is fixedly connected to a feed pipe 3 with a dust removal interface;

[0071] The inner wall of the mixing tank 1 is fixedly equipped with an anti-static structure 5, the grounding end of which is pre-embedded in the ground.

[0072] The static eliminator structure 5 is located on the inner wall of the mixing tank 1, and is distributed at intervals with the stirring components of the stirring and feeding components 6.

[0073] Specifically in this embodiment, the mixing tank 1 is made of stainless steel, and the jacket 2 is provided with a feed pipe and a discharge pipe, which are connected to an external circulating refrigeration unit.

[0074] Furthermore, a jacket 2 is installed on the outer wall of the mixing tank 1, and circulating cold water is introduced into the jacket 2 for cooling to prevent the internal temperature of the mixing tank 1 from being too high and affecting the nylon material; after the stirring and feeding components 6 stir the material in the inner cavity of the mixing tank 1, the material in the conical bucket 12 is conveyed downward through the shaftless screw conveyor assembly 62, and the material is discharged more thoroughly when the discharge port at the bottom of the mixing tank 1 is opened, reducing material residue and reducing cleaning difficulty;

[0075] More specifically, the antistatic structure 5 is used to eliminate the static electricity generated by the nylon powder during the stirring process, and to turbulent the material flow in the mixing tank 1, thereby improving the mixing efficiency and avoiding related problems and risks caused by static electricity.

[0076] Understandably, the feed pipe 3 with a dust removal interface, which is connected to an external dust collector, will suck away the dust during the feeding process to prevent dust from overflowing.

[0077] In some embodiments, the mixing and feeding component 6 includes:

[0078] The stirring structure 61 is fixedly mounted at the middle of the top surface of the mixing tank 1 at its upper end;

[0079] The lower end of the stirring structure 61 extends to the upper end of the inner cavity of the conical bucket 12;

[0080] The upper end of the shaftless screw conveyor assembly 62 is fixedly connected to the lower end of the stirring structure 61;

[0081] The outer wall dimensions of the shaftless screw conveyor assembly 62 gradually decrease from top to bottom along the inner cavity of the conical hopper 12. Specifically, in this embodiment, the stirring structure 61 stirs and mixes the upper part of the inner cavity of the mixing tank 1.

[0082] Furthermore, the shaftless screw conveyor assembly 62 is used to convey the material inside the conical bucket 12 downwards, and the shaftless design avoids residual material at the corners;

[0083] More specifically, the inner wall of the conical bucket 12 is sloped to guide the material downwards. Through the downward conveying action of the shaftless screw conveyor assembly 62, the material is discharged better and the material residue is effectively reduced.

[0084] It is understandable that when the valved discharge pipe 13 is not open, the material being conveyed downwards accumulates and flows upwards back up.

[0085] In some embodiments, the stirring structure 61 includes:

[0086] The drive motor 611 is fixedly mounted on the middle of the top surface of the mixing tank 1;

[0087] The lower end of the drive motor 611 is fixedly connected to a round rod 612 that passes through the top surface of the mixing tank 1, and its lower end extends to the upper end of the inner cavity of the conical bucket 12;

[0088] The first stirring blade 613 is uniformly fixedly assembled on the left side of the outer wall of the round rod 612 along the length direction;

[0089] A second stirring blade 614 is uniformly fixedly mounted on the right side of the outer wall of the round rod 612 along its length.

[0090] The first stirring blade 613 and the second stirring blade 614 are asymmetrically distributed;

[0091] The gaps between the first stirring blade 613 and the second stirring blade 614 are set correspondingly on the left and right sides.

[0092] Specifically in this embodiment, the drive motor 611 is connected to an external power source, which drives the round rod 612, the first stirring blade 613, the second stirring blade 614, and the shaftless spiral conveying assembly 62 to rotate.

[0093] Furthermore, the width of the second stirring blade 614 is greater than the width of the first stirring blade 613, which makes the first stirring blade 613 and the second stirring blade 614 asymmetrically distributed, which can disrupt the flow field and eliminate the stirring dead zone.

[0094] More specifically, the gap between the first stirring blade 613 and the second stirring blade 614 is set to correspond to each other on the left and right. During the rotation of the first stirring blade 613 and the second stirring blade 614, the ion rod 51 is always located within the gap between the first stirring blade 613 and the second stirring blade 614.

[0095] In some embodiments, the static eliminator structure 5 includes:

[0096] Ion rod 51, the fixed end of which is embedded in the inner wall of mixing tank 1;

[0097] Ion rods 51 are spaced apart within the stirring components of the stirring and feeding components 6;

[0098] Ion rod 51 is electrically connected to an external power source;

[0099] Ground insertion rod 52, which is inserted into the ground;

[0100] The upper end of the ground insertion rod 52 is welded and fixed to the metal part of the outer wall of the mixing tank 1 via a wire;

[0101] The upper metal part of the stirring and feeding component 6 is electrically bonded to the outer metal part of the mixing tank 1.

[0102] Specifically in this embodiment, the number of ion rods 51 is the same as the number of gaps between the first stirring blade 613 or the second stirring blade 614, so as to make more sufficient contact with the nylon powder during the stirring process and eliminate the static electricity generated during the stirring friction process.

[0103] Furthermore, the ion rod 51 is an application of existing technology. The ion rod 51 generates a large number of gas clouds with positive and negative charges, which can neutralize the charges on objects that pass through its ion radiation zone.

[0104] More specifically, the upper metal part of the mixing and feeding component 6 is electrically bonded to the outer metal part of the mixing tank 1, and the static electricity is conducted to the grounding rod 52 through the wire, and finally to the ground to achieve the grounding effect.

[0105] In some embodiments, mixing tank 1 includes:

[0106] A cover plate is screwed to the opening at the upper end of the cylinder 11;

[0107] The lower end of the feed pipe 3 of the dust removal interface is fixedly connected to the edge of the cover plate;

[0108] The upper end of the mixing and feeding component 6 is fixedly connected to the middle of the top surface of the cover plate;

[0109] The upper end of the conical hopper 12 is fixedly connected to the lower end of the cylinder 11, and the lower end of the conical hopper 12 is fixedly connected to a discharge pipe 13 with a valve.

[0110] Specifically, in this embodiment, mixing tank 1 is used as a container for mixing nylon powder;

[0111] Furthermore, the screw-on cover can be opened, facilitating the cleaning and maintenance of the mixing tank 1, as well as the inspection and maintenance of the agitator and feeding components 6.

[0112] In some embodiments, the feed pipe 3 of the dust removal interface includes:

[0113] The feed pipe body 31 has its lower end fixedly connected to the edge of the cover plate;

[0114] A top cap 32 is fastened to the upper end of the feed pipe body 31;

[0115] A branch pipe 33 is fixedly connected to the side wall of the feed pipe body 31, and a valve 34 is fixedly installed on it.

[0116] Specifically in this embodiment, the branch pipe 33 is connected to an external dust collector, and the feed pipe 31 is used for feeding the material to be stirred;

[0117] Furthermore, before feeding, open the valve 34 on the outer wall of the branch pipe 33 and start the dust collector. By selecting a dust collector with appropriate suction power, the dust generated by the feeding is extracted through the branch pipe 33 without affecting the normal feeding of powder materials.

[0118] In some embodiments, a ring support frame 4 is fixedly assembled at the lower end of the mixing tank 1;

[0119] The ring-shaped support frame 4 includes:

[0120] There are at least eight uprights distributed around their circumference;

[0121] The upper end of the circumferentially distributed uprights 41 is welded and fixed to the lower end of the mixing tank 1;

[0122] A ring-shaped base plate 43 is fixedly assembled at the lower end of the circumferentially distributed uprights 41.

[0123] The lower front end of the circumferentially distributed uprights 41 is provided with a material inlet / outlet window 45;

[0124] A mounting ring 42 is fixedly sleeved on the upper end of the outer wall of the circumferentially distributed uprights 41.

[0125] A conical base 44 is fixedly mounted on the lower end of the annular base plate 43, with its larger end fixed to the ground.

[0126] Specifically in this embodiment, the circumferentially distributed uprights 41 serve as the main body of the support, and the lower end of the annular base plate 43 serves as the support seat. The inlet and outlet windows 45 are provided to facilitate the inlet and outlet of materials below the valved discharge pipe 13.

[0127] Furthermore, by fixing a conical base 44 to the lower end of the annular base plate 43, the contact area with the ground is increased, thereby improving the support stability;

[0128] More specifically, the mounting ring 42 is used to connect the upper end of the outer wall of the circumferentially distributed uprights 41, thereby improving the overall strength of the ring support frame 4 and providing more stable support for the device.

[0129] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A stirring device for nylon powder, characterized in that, include: A mixing tank (1) has a jacket (2) fixedly fitted on its outer wall; The lower end of the mixing tank (1) is a conical hopper (12); The mixing tank (1) is fixedly equipped with a stirring and feeding component (6) in the middle of its top surface; The stirring and feeding component (6) has a shaftless screw conveyor assembly (62) fixed at the lower end of the stirring part, which is coaxially placed inside the conical bucket (12); The top edge of the mixing tank (1) is fixedly connected to a feed pipe (3) with a dust removal interface; The mixing tank (1) is fixedly equipped with an anti-static structure (5) on its inner wall, and its grounding end is pre-buried in the ground. The static eliminator (5) is located on the inner wall of the mixing tank (1) and is distributed at intervals with the stirring component of the stirring and feeding component (6).

2. The stirring device for nylon powder according to claim 1, characterized in that, The mixing and feeding component (6) includes: A stirring structure (61) is fixedly assembled at its upper end to the middle of the top surface of the mixing tank (1); The lower end of the stirring structure (61) extends to the upper end of the inner cavity of the conical bucket (12); The upper end of the shaftless screw conveyor assembly (62) is fixedly connected to the lower end of the stirring structure (61); The outer wall dimensions of the shaftless screw conveyor assembly (62) gradually decrease from top to bottom along the inner cavity of the conical bucket (12).

3. The stirring device for nylon powder according to claim 2, characterized in that, The stirring structure (61) includes: A drive motor (611) is fixedly mounted on the middle of the top surface of the mixing tank (1); The lower end of the drive motor (611) is fixedly connected to a round rod (612) through the top surface of the mixing tank (1), and its lower end extends to the upper end of the inner cavity of the conical bucket (12); The first stirring blade (613) is uniformly fixedly assembled on the left side of the outer wall of the round rod (612) along the length direction; The second stirring blade (614) is uniformly fixedly assembled on the right side of the outer wall of the round rod (612) along the length direction; The first stirring blade (613) and the second stirring blade (614) are asymmetrically distributed; The gap between the first stirring blade (613) and the second stirring blade (614) is set on the left and right sides respectively.

4. The stirring device for nylon powder according to claim 1, characterized in that, The static eliminator structure (5) includes: An ion rod (51) is fitted into the inner wall of the mixing tank (1) at its fixed end; The ion rods (51) are spaced apart within the stirring components of the stirring and feeding components (6); The ion rod (51) is electrically connected to an external power source; Ground insertion rod (52), which is inserted into the ground; The upper end of the ground insertion rod (52) is welded and fixed to the metal part of the outer wall of the mixing tank (1) by means of a wire; The upper metal part of the stirring and feeding component (6) is electrically bonded to the outer metal part of the mixing tank (1).

5. A stirring device for nylon powder according to claim 1, characterized in that, The mixing tank (1) includes: A cylinder (11) with a cover plate screwed to its upper opening; The lower end of the feed pipe (3) of the dust removal interface is fixedly connected to the edge of the cover plate; The upper end of the stirring and feeding component (6) is fixedly connected to the middle of the top surface of the cover plate; The upper end of the conical hopper (12) is fixedly connected to the lower end of the cylinder (11), and the lower end of the conical hopper (12) is fixedly connected to a discharge pipe (13) with a valve.

6. The stirring device for nylon powder according to claim 5, characterized in that, The feed pipe (3) of the dust removal interface includes: The feed pipe (31) is fixedly connected at its lower end to the edge of the cover plate; A top cap (32) is fastened to the upper end of the feed tube (31); The feed pipe body (31) has a branch pipe (33) fixedly connected to its side wall, and a valve (34) is fixedly mounted on it.

7. The stirring device for nylon powder according to claim 1, characterized in that, The lower end of the mixing tank (1) is fixedly equipped with an annular support frame (4).

8. A stirring device for nylon powder according to claim 7, characterized in that, The annular support frame (4) includes: The uprights (41) have at least eight circumferences distributed around them; The upper end of the circumferentially distributed upright (41) is welded and fixed to the lower end of the mixing tank (1); The lower end of the circumferentially distributed upright (41) is fixedly fitted with an annular base plate (43); The lower front end of the circularly distributed upright (41) is provided with a material inlet / outlet window (45).

9. A stirring device for nylon powder according to claim 8, characterized in that, An installation ring (42) is fixedly sleeved on the upper end of the outer wall of the circumferentially distributed upright (41).

10. A stirring device for nylon powder according to claim 8, characterized in that, The lower end of the annular base plate (43) is fixedly fitted with a conical base (44), the larger end of which is fixed to the ground.

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