Uniform conveying mechanism for stainless steel powder drying

Abstract

The utility model relates to the technical field of powder drying and processing equipment, discloses a uniform conveying mechanism for drying stainless steel powder, and solves the problems of non-uniform suspension, abrasion or high-density accumulation and the like of the existing stainless steel powder in the drying process. Uniform fluidization and conveying of powder can be effectively achieved, it is ensured that the powder makes full contact with hot air, the drying efficiency is improved, and meanwhile friction and abrasion between the powder are reduced. The conveying efficiency and the fluidization effect are further improved, uniform distribution of the powder is guaranteed, and the device has high stability and reliability and is convenient to clean and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of powder drying processing equipment, in particular to a uniform conveying mechanism for drying stainless steel powder. Background Art

[0002] Fluidized bed drying utilizes fluidization technology for drying, and is widely used in the chemical, food, pharmaceutical, and mining industries. During the fluidized bed drying process, wet materials are processed into powder or granules. Heat is then transferred to the wet materials through a hot air flow, causing surface moisture to evaporate, thereby removing moisture. Fluidization suspends solid particles in a rising gas, causing them to exhibit fluid-like properties. This technology is suitable for heat-sensitive materials, granular materials, and powdered materials, such as those used in drying foods, pharmaceuticals, and chemical products.

[0003] An existing Chinese patent, publication number CN221253036U, discloses a uniform fluidized powder feeding device. In this solution, powder enters a fluidized powder hopper from a silo through a gate valve. Airflow is accelerated through the fine pores of the fluidizing plate, fluidizing the powder. The uniformity of the powder is controlled by adjusting the air intake. A single air intake adjustment may not be suitable for all powder types, and air intake does not completely determine airflow velocity. The airflow velocity must be sufficient to maintain the fluidization of the powder, but not too high to avoid problems such as uneven powder suspension, wear, or high-density accumulation.

[0004] In view of the above-mentioned related technologies, a uniform conveying mechanism for drying stainless steel powder is now provided to eliminate the above-mentioned disadvantages. Utility Model Content

[0005] The purpose of the utility model is to provide a uniform conveying mechanism for drying stainless steel powder. The device is used to solve the problems of uneven suspension, wear or high-density accumulation of powder.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a uniform conveying mechanism for drying stainless steel powder, comprising a fluidizing barrel, the fluidizing barrel having an upper cylindrical body and a lower conical body, a feeding pipe being provided on one side of the top of the fluidizing barrel, an air inlet pipe and an air delivery pipe being provided on both sides of the conical portion of the bottom end of the fluidizing barrel, a supporting barrel being fixedly provided on the outer wall of the fluidizing barrel, a rotary vibrator being symmetrically provided on the outer walls of both sides of the supporting barrel, a supporting foot being fixedly installed on the bottom end of the supporting barrel, a shock-absorbing spring being provided at the connection between the supporting foot and the supporting barrel, and a fluidizing homogenizing assembly being provided in the fluidizing barrel;

[0007] The fluidized homogenizing assembly includes a rotating motor, a rotating shaft, a limiting sleeve, a fluidizing plate, a material stripping plate and a buffer spring. The rotating motor is fixedly installed at the top middle part of the fluidizing barrel. The output shaft of the rotating motor is fixedly connected to the rotating shaft. A plurality of limiting sleeves and fluidizing plates are equidistantly provided on the rotating shaft. The material stripping plate is fixedly installed on the limiting sleeve. A buffer spring is abutted between the limiting sleeve and the fluidizing plate. A buffer gap is provided between the fluidizing plate and the material stripping plate.

[0008] Preferably, the fluidizing plate includes a primary fluidizing plate, a secondary fluidizing plate and a tertiary fluidizing plate, and the disc sizes of the primary fluidizing plate, the secondary fluidizing plate and the tertiary fluidizing plate increase step by step.

[0009] Preferably, the primary fluidizing plate, the secondary fluidizing plate and the tertiary fluidizing plate are all provided with circular holes, and the diameters of the circular holes decrease in order from far to near as the distance from the center of the circle decreases.

[0010] Preferably, the density of the circular holes on the primary fluidizing plate, the secondary fluidizing plate and the tertiary fluidizing plate increases step by step.

[0011] Preferably, the end of the stripping plate in contact with the fluidizing plate is made of elastic material.

[0012] Preferably, a material-cutting claw is fixedly connected to the bottom end of the rotating shaft.

[0013] Preferably, a plurality of telescopic elastic members are fixedly provided on the rotating shaft at intervals, and the plurality of telescopic elastic members are all located below the fluidizing plate and abut against it.

[0014] Preferably, a valve is provided at the discharge end of the fluidizing barrel.

[0015] Preferably, the inner wall of the fluidizing barrel is provided with grooves in sections that are wider at the top and narrower at the bottom.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. This utility model proposes a stainless steel powder drying uniform conveying mechanism. Through a specific fluidizing barrel structure and fluidizing homogenizing component design, it achieves efficient fluidization and uniform conveying of powders. This effectively avoids uneven suspension of powder during conveying, ensures sufficient contact between powder and hot air, and improves drying efficiency and product quality. Furthermore, the multi-stage fluidizing plate and circular hole design ensure that powders of varying particle sizes can achieve the appropriate fluidization effect. The circular hole diameter gradually decreases from the center outward, while the circular hole density increases step by step. This helps to improve the fluidization uniformity of the powder, reduce friction and wear between the powders, and extend the service life of the equipment.

[0018] 2. This utility model proposes a uniform conveying mechanism for stainless steel powder drying. The end of the material-dispensing plate that contacts the fluidizing plate is made of an elastic material, effectively dispensing powder while reducing wear on the fluidizing plate, thereby improving the stability and reliability of the equipment. A material-dispensing claw at the bottom of the rotating shaft and multiple elastic members fixed at intervals abut against the bottom of the fluidizing plate, further improving the powder's conveying efficiency and fluidization effect, ensuring uniform distribution of the powder within the fluidizing barrel. Furthermore, a valve is installed at the discharge end of the fluidizing barrel, and the inner wall is segmented with grooves that are wider at the top and narrower at the bottom. These structural designs help control the powder discharge speed and flow rate, achieving more precise material conveying control while also facilitating cleaning and maintenance of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a structural diagram of one side of the utility model;

[0021] Figure 3 This is a schematic structural diagram of the fluidized homogenizing component of the utility model;

[0022] Figure 4 This is a schematic diagram of the position structure of the graded fluidizing plate of the utility model;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the utility model along the AA axis.

[0024] In the figure: 11, fluidizing barrel; 110, groove; 111, feed pipe; 112, air inlet pipe; 113, air delivery pipe; 12, support barrel; 13, oscillator; 14, support foot; 141, shock-absorbing spring; 21, rotating motor; 22, rotating shaft; 23, limiting sleeve; 24, fluidizing plate; 241, primary fluidizing plate; 242, secondary fluidizing plate; 243, tertiary fluidizing plate; 25, material stripping plate; 26, buffer spring; 27, material scraping claw; 28, telescopic elastic member; DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings.

[0027] Combine Figure 1-Figure 5, a uniform conveying mechanism for drying stainless steel powder, including a fluidizing barrel 11, the fluidizing barrel 11 has a structure of an upper cylinder and a lower cone, which is conducive to the powder forming a good flow state in the barrel. A feeding pipe 111 is provided on one side of the top of the fluidizing barrel 11 to facilitate the addition of materials. An air inlet pipe 112 and an air delivery pipe 113 are respectively provided on both sides of the cone at the bottom end of the fluidizing barrel 11 to provide the necessary air source for the fluidization process, ensuring that the powder can fully contact the hot air and accelerate the drying process; a support barrel 12 is fixedly provided on the outer wall of the fluidizing barrel 11, and a rotary vibrator 13 is symmetrically provided on the outer walls of both sides of the support barrel 12. The vibration generated by the rotary vibrator 13 assists the fluidization of the material and improves the drying efficiency. A support foot 14 is fixedly installed at the bottom end of the support barrel 12, and a shock-absorbing spring 141 is provided at the connection between the support foot 14 and the support barrel 12, which effectively reduces the adverse effects of vibration on the equipment and ensures the stability of the equipment operation. A fluidized homogenization component 2 is provided in the fluidizing barrel 11;

[0028] The fluidized homogenizing assembly 2 includes a rotating motor 21, a rotating shaft 22, a limiting sleeve 23, a fluidizing plate 24, a material stripping plate 25 and a buffer spring 26. The rotating motor 21 is fixedly mounted on the top middle part of the fluidizing barrel 11. The rotating shaft 22 is fixedly connected to the output shaft of the rotating motor 21. A plurality of limiting sleeves 23 and fluidizing plates 24 are equidistantly spaced on the rotating shaft 22. The material stripping plate 25 is fixedly mounted on the limiting sleeve 23. The rotating shaft 22 is driven to rotate by the rotating motor 21, and then the fluidizing plate 24 and the material stripping plate 25 are driven to work, thereby realizing the turning and mixing of the materials and improving the drying uniformity. The limiting sleeve 23 and the fluidizing plate 24 are fixedly mounted on the fluidizing plate 25. A buffer spring 26 is abutted between the plates 24, and a buffer gap is provided between the fluidizing plate 24 and the material-diverting plate 25; the end of the material-diverting plate 25 in contact with the fluidizing plate 24 is made of elastic material, which can reduce the wear on the fluidizing plate 24 while ensuring effective digging of the powder, thereby improving the durability of the equipment; a material-diverting claw 27 is fixedly connected to the bottom end of the rotating shaft 22; a plurality of telescopic elastic members 28 are fixedly provided on the rotating shaft 22 at intervals, and the plurality of telescopic elastic members 28 are all located below the fluidizing plate 24 and abut against it, further improving the powder conveying efficiency and fluidization effect, and ensuring the uniform distribution of the powder in the fluidizing barrel 11.

[0029] The fluidizing plate 24 includes a primary fluidizing plate 241, a secondary fluidizing plate 242 and a tertiary fluidizing plate 243. The diameters of the disks of the primary fluidizing plate 241, the secondary fluidizing plate 242 and the tertiary fluidizing plate 243 increase step by step. Circular holes are provided on the primary fluidizing plate 241, the secondary fluidizing plate 242 and the tertiary fluidizing plate 243. The diameters of the circular holes decrease in sequence from far to near as the distance from the center of the circle increases. The density of the circular holes on the primary fluidizing plate 241, the secondary fluidizing plate 242 and the tertiary fluidizing plate 243 increases step by step. This not only ensures uniform fluidization of powders of different particle sizes, but also the diameter of the circular holes gradually decreases from the center to the outside, and the density of the circular holes increases step by step, further improving the fluidization efficiency and the mixing uniformity of the materials.

[0030] A valve is provided at the discharge end of the fluidized barrel 11, which provides precise control over the discharge speed and flow of the material, ensuring the uniformity and controllability of material transportation; the inner wall of the fluidized barrel 11 is segmented with grooves 110 that are wider at the top and narrower at the bottom, which helps to guide the smooth flow of powder, reduce residue and blockage during the discharge process, and also facilitate the cleaning and maintenance of the equipment.

[0031] Working principle: This mechanism realizes efficient drying and uniform conveying of powder through the fluidized barrel 11. The upper part of the fluidized barrel 11 is a cylinder and the lower part is a cone, which is conducive to the flow of materials; the feed pipe 111 is located at the top to facilitate feeding; the air inlet pipe 112 and the air delivery pipe 113 are located at the bottom to ensure the circulation of hot air and achieve rapid drying; the support barrel 12 is fixed to the outer wall of the barrel, and the vibrator 13 on it generates vibration to assist the fluidization of materials and improve the drying efficiency; the support foot 14 is equipped with a shock-absorbing spring 141 to reduce the impact of vibration and ensure stable operation; the fluidized homogenization component 2 inside the fluidized barrel 11 is driven by a rotating motor 21, through The rotating shaft 22 drives the limiting shaft sleeve 23 to rotate, realizing material turning and mixing; the fluidizing plate 24 consists of a primary fluidizing plate 241, a secondary fluidizing plate 242 and a tertiary fluidizing plate 243. The diameter of the disc increases step by step, and the circular hole design promotes uniform fluidization of powders of different particle sizes, improving drying efficiency and material mixing uniformity; the material removal plate 25 is made of elastic material to reduce wear; the material removal claw 27 at the bottom end of the rotating shaft 22 and the retractable elastic member 28 fixed at intervals enhance the conveying efficiency and ensure uniform distribution of powder; the valve at the discharge end controls the material flow, and the groove 110 on the inner wall guides the powder flow, reduces residue, and facilitates maintenance.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A uniform conveying mechanism for drying stainless steel powder, comprising a fluidizing barrel (11), wherein the fluidizing barrel (11) is a structure of an upper cylinder and a lower cone, a feeding pipe (111) is provided on one side of the top end of the fluidizing barrel (11), an air inlet pipe (112) and an air delivery pipe (113) are provided on both sides of the cone portion of the bottom end of the fluidizing barrel (11), a supporting barrel (12) is fixedly provided on the outer wall of the fluidizing barrel (11), and a rotary vibrator (13) is symmetrically provided on the outer walls of both sides of the supporting barrel (12), a supporting foot (14) is fixedly installed at the bottom end of the supporting barrel (12), and a shock-absorbing spring (141) is provided at the connection between the supporting foot (14) and the supporting barrel (12), characterized in that: A fluidizing homogenizing component (2) is provided in the fluidizing barrel (11); The fluidized homogenizing component (2) comprises a rotating motor (21), a rotating shaft (22), a limiting shaft sleeve (23), a fluidizing plate (24), a material-diverting plate (25) and a buffer spring (26). The rotating motor (21) is fixedly mounted at the top middle portion of the fluidizing barrel (11). The rotating shaft (22) is fixedly connected to the output shaft of the rotating motor (21). A plurality of limiting shaft sleeves (23) and fluidizing plates (24) are equidistantly arranged on the rotating shaft (22). The material-diverting plate (25) is fixedly mounted on the limiting shaft sleeve (23). A buffer spring (26) is abutted between the limiting shaft sleeve (23) and the fluidizing plate (24). A buffer gap is provided between the fluidizing plate (24) and the material-diverting plate (25).

2. The uniform conveying mechanism for drying stainless steel powder according to claim 1, characterized in that: The fluidizing plate (24) comprises a primary fluidizing plate (241), a secondary fluidizing plate (242) and a tertiary fluidizing plate (243), and the disc diameters of the primary fluidizing plate (241), the secondary fluidizing plate (242) and the tertiary fluidizing plate (243) increase step by step.

3. The uniform conveying mechanism for drying stainless steel powder according to claim 2, characterized in that: The first-stage fluidizing plate (241), the second-stage fluidizing plate (242) and the third-stage fluidizing plate (243) are all provided with circular holes, and the diameters of the circular holes decrease in order from far to near as the distance from the center of the circle decreases.

4. The uniform conveying mechanism for drying stainless steel powder according to claim 3, characterized in that: The density of the circular holes on the primary fluidizing plate (241), the secondary fluidizing plate (242) and the tertiary fluidizing plate (243) increases step by step.

5. The uniform conveying mechanism for drying stainless steel powder according to claim 1, characterized in that: One end of the material-diverting plate (25) in contact with the fluidizing plate (24) is made of elastic material.

6. The uniform conveying mechanism for drying stainless steel powder according to claim 1, characterized in that: The bottom end of the rotating shaft (22) is fixedly connected with a material-cutting claw (27).

7. The uniform conveying mechanism for drying stainless steel powder according to claim 1, characterized in that: A plurality of telescopic elastic members (28) are fixedly arranged on the rotating shaft (22) at intervals. The plurality of telescopic elastic members (28) are all located below the fluidizing plate (24) and abut against it.

8. The uniform conveying mechanism for drying stainless steel powder according to claim 1, characterized in that: The discharge end of the fluidizing barrel (11) is provided with a valve.

9. The uniform conveying mechanism for drying stainless steel powder according to claim 1, characterized in that: Grooves (110) that are wider at the top and narrower at the bottom are provided in sections on the inner wall of the fluidizing barrel (11).

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