Rotary drying device for stainless steel powder

Abstract

The utility model relates to the technical field of metal powder processing, discloses a rotary drying device for stainless steel powder, and solves the problems in the prior art that the stainless steel powder is non-uniformly dried, the efficiency is low, and materials are easy to cake or adhere in the drying process. Through a dispersing mechanism arranged in the rotary drum and a heat conduction and vacuum control system of a supporting shaft, the device can effectively improve the drying efficiency, ensure uniform heating of materials in the drying process, realize uniform dispersing and continuous drying of the materials and prevent the materials from adhering to and caking on the inner wall of the rotary drum, and meanwhile, through the arrangement of a separating screen, the drying efficiency is greatly improved. In addition, through the shoveling plates arranged on the inner wall of the rotary drum, stirring and mixing of the materials are enhanced, drying is more sufficient, and the requirements for high-efficiency and high-quality drying are met.

Description

Technical Field

[0001] The utility model relates to the technical field of metal powder processing, in particular to a stainless steel powder rotary drying device. Background Art

[0002] The stainless steel double-cone rotary vacuum dryer is a highly efficient drying equipment suitable for concentrating, mixing, and drying powdered, granular, and fibrous materials in the chemical, pharmaceutical, and food industries. A heat source, such as hot water, low-pressure steam, or thermal oil, is introduced into the equipment. Heat is transferred to the material through the inner shell, and the tank body rotates slowly under power, continuously mixing the material inside the tank and enhancing the drying effect. Under vacuum, the surface moisture of the material evaporates due to the drop in vapor pressure to reach saturation, and is discharged and recycled by the vacuum pump. However, current equipment often suffers from uneven powder drying, low efficiency, and easy agglomeration or adhesion of materials during the drying process.

[0003] In view of the above-mentioned related technologies, a stainless steel powder rotary drying device is now provided, which can eliminate the disadvantages of the existing devices. Utility Model Content

[0004] The purpose of the utility model is to provide a stainless steel powder rotary drying device, which solves the problems of uneven drying of stainless steel powder, low efficiency and easy agglomeration or adhesion of materials during the drying process in the prior art.

[0005] To achieve the above object, the utility model provides the following technical solution: a stainless steel powder rotary drying device, comprising a frame, a support shaft rotatably provided on the frame, a drum fixedly connected to the support shaft, and a dispersion mechanism provided in the drum;

[0006] The dispersion mechanism includes a plate support, which is fixed to the inner wall of the drum, and frame supports are fixed to the side walls of the plate support. A rotating rake is rotatably provided on the frame support, and linkage cranks are sleeved on both ends of the rotating rake. One end of the linkage crank is fixed to the rotating rake, and the other end is in contact with the plate support. A plurality of sliding supports are slidingly provided on the plate support, and a partition screen is fixedly connected to the sliding support. The partition screens are arranged in reverse, and a connecting pipe is fixed to the narrow end of one of the partition screens, and a shock-absorbing spring is fixed to the narrow end of the other partition screen. The outer diameter of the connecting pipe is smaller than the inner diameter of the narrow end of the partition screen, and the outer diameter of the shock-absorbing spring is larger than the outer diameter of the connecting pipe.

[0007] Preferably, each plate support is provided with a slot, and a sliding support slides in the slot.

[0008] Preferably, each sliding support is provided with a sliding groove, and a linkage crank slides in the sliding groove.

[0009] Preferably, the structure of the support shaft is hollow inside, and a heat conduction system connected to the inside of the drum is provided in the hollow position of the support shaft, and a vacuum control system connected to the inside of the drum is provided in the hollow position of the support shaft, and sealing seats are provided at the connection points between the heat conduction system and the vacuum control system and the drum.

[0010] Preferably, the drum is a tank body provided with an interlayer, comprising an outer shell layer, a sealed interlayer and an inner shell layer.

[0011] Preferably, a plurality of scooping plates are provided on the inner wall of the drum, including straight scooping plates and inclined scooping plates. The straight scooping plates are circumferentially distributed on the inner wall of the middle cylinder of the drum and fixedly connected thereto, and the inclined scooping plates are respectively provided on the upper cone and the lower cone of the drum and fixedly connected thereto.

[0012] Preferably, the separating screen is a conical structure.

[0013] Preferably, the separating screen is slidably arranged on the straight copying plate of the middle cylinder of the drum.

[0014] Preferably, a plurality of rake teeth are arranged at intervals on the rotary rake.

[0015] Preferably, both the top and bottom ends of the board support are provided with limit blocks.

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

[0017] 1. The utility model proposes a stainless steel powder rotary drying device, which realizes continuous tumbling and dispersion of the material in the drum by arranging a dispersion mechanism in the drum, especially the coordinated use of a rotary rake and a linkage crank, thereby avoiding powder agglomeration, ensuring sufficient contact between hot air and the material, and thus accelerating the drying process. In addition, the reverse setting of the separating screens and the conical structure design further promote the uniform distribution and heat exchange of the material, improve the drying rate, and ensure the quality of the dried powder. The sandwich structure of the drum can be heated or cooled as needed to adapt to the drying characteristics of different materials. The coordination of the straight and inclined shovels further enhances the mixing and flow of the material in the drum, prevents the adhesion and deposition of the material during the drying process, and ensures the continuity and uniformity of the drying process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the dispersion mechanism of the utility model;

[0021] Figure 4This is a schematic diagram of the decomposed structure of the dispersion mechanism of the present utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the separation screen of the present utility model;

[0023] Figure 6 This is a schematic diagram of the copying plate position structure of the present utility model.

[0024] In the figure: 1. Frame; 2. Support shaft; 3. Drum; 4. Sealing seat; 5. Dispersing mechanism; 51. Plate support; 510. Slot; 52. Frame support; 53. Rotary rake; 54. Linking crank; 55. Sliding support; 550. Slide; 56. Partition screen; 561. Connecting pipe; 562. Shock-absorbing spring; 6. Copying plate; 61. Straight copying plate; 62. Inclined copying plate. 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 Figures 1-6 A stainless steel powder rotary drying device comprises a frame 1, two support shafts 2 are rotatably provided on the two frames 1, a drum 3 is fixedly connected to the two support shafts 2, and a dispersion mechanism 5 is provided in the drum 3;

[0028] The dispersing mechanism 5 includes a plate support 51, which is fixed to the inner wall of the drum 3. A slot 510 is opened on each of the two plate supports 51, and a sliding support 55 slides in the slot 510 to assist the sliding support 55 to realize reciprocating movement on the plate support 51; a limit stopper is provided at the top and bottom ends of the plate support 51 to prevent the sliding support 55 from separating from the plate support 51 during the sliding process; a frame support 52 is fixed to the side walls of the two plate supports 51, and a rotating rake 53 is rotatably provided on the frame support 52, and a plurality of rake teeth are arranged at intervals on the rotating rake 53 to facilitate material digging; the plate support 51 and the frame support 52 jointly provide stable support for the rotation of the rotating rake 53, and a linkage crank 54 is sleeved on both ends of the rotating rake 53, one end of the linkage crank 54 is fixed to the rotating rake 53, and the other end abuts against the plate support 51, and a plurality of sliding supports 55 are slidably provided on the plate support 51, and a plurality of sliding supports 55 are arranged on A slide 550 is provided, in which a linkage crank 54 slides. Through the setting of the linkage crank 54, the vertical force generated when the sliding support 55 moves is converted into a rotational force through the slide 550 to drive the rotating rake 53 to rotate; a partition screen 56 is fixedly connected to the sliding support 55, and the sliding support 55 and the partition screen 56 on the plate support 51 are used to further disperse the material. The two partition screens 56 are arranged in opposite directions, which further improves the efficiency of material dispersion. A connecting pipe 561 is fixedly connected to the narrow end of one of the partition screens 56, and a shock-absorbing spring 562 is fixedly connected to the narrow end of the other partition screen 56. The outer diameter of the connecting pipe 561 is smaller than the inner diameter of the narrow end of the partition screen 56, and the outer diameter of the shock-absorbing spring 562 is larger than the outer diameter of the connecting pipe 561. The coordinated use of the connecting pipe 561 and the shock-absorbing spring 562 ensures the stability and durability of the screen.

[0029] The support shafts 2 are hollow. A heat transfer system connected to the interior of the drum 3 is located in one hollow portion of the support shaft 2, while a vacuum control system connected to the interior of the drum 3 is located in the other hollow portion of the support shaft 2. Seals 4 are provided at the points where the heat transfer system and the vacuum control system communicate with the drum 3. The heat transfer system ensures uniform heat transfer to the drum 3, while the vacuum control system provides a suitable air pressure environment for the drying process. The combination of the two significantly improves drying efficiency and thermal energy utilization.

[0030] The drum 3 is a tank body with an interlayer, including an outer shell, a sealed interlayer and an inner shell, which provides structural guarantees for uniform distribution of heat energy and uniform drying of the material. The inner wall of the drum 3 is provided with multiple scoop plates 6, which include straight scoop plates 61 and inclined scoop plates 62. The multiple straight scoop plates 61 are circumferentially distributed on the inner wall of the middle cylinder of the drum 3 and are fixedly connected to it. The multiple inclined scoop plates 62 are respectively arranged on the upper and lower cones of the drum 3 and are fixedly connected to its inner wall. The scoop plates 6 further enhance the mixing and dispersion of the material in the drum, effectively avoid adhesion and agglomeration of the material during the drying process, and ensure the uniformity of the drying quality.

[0031] The partition screen 56 is a conical structure to guide the uniform and dispersion of the powder; the partition screen 56 is slidingly arranged on the straight copyboard 61 of the middle cylinder of the rotating drum 3 to avoid displacement only by the slide support 55, and meanwhile, the straight copyboard 61 provides an additional support point for the reciprocating movement of the partition screen 56 in the middle cylinder of the rotating drum 3.

[0032] Working principle: the rotating drum 3 is rotated through the support shaft 2 on the frame 1 to realize efficient drying of the material in the rotating drum 3, and the dispersion mechanism in the rotating drum 3 plays a key role, including the plate support 51 and the frame support 52 which jointly provide stable support for the rotating rake 53, the linkage crank 54 at both ends of the rotating rake 53 abuts against the plate support 51 so that the rotating rake 53 can rotate smoothly, the slide support 55 on the plate support 51 realizes reciprocating movement through the clamping groove 510, the partition screen 56 on the slide support 55 further disperses the material to improve the drying efficiency, and the slide groove 550 on the slide support 55 converts the vertical force into the rotary force for driving the rotating rake 53 to rotate; the copyboards 6 on the inner wall of the rotating drum 3 are distributed in the middle cylinder and the upper and lower tapered portions of the rotating drum to enhance the mixing and dispersion of the material, avoid adhesion and caking, and ensure the uniformity of the drying quality; the conical structure of the partition screen 56 and the sliding arrangement of the partition screen 56 on the straight copyboard 61 guide the uniform dispersion of the powder, and meanwhile, the straight copyboard 61 provides additional support for the screen to ensure the stability of the operation; the rake teeth on the rotating rake 53 and the limiting stopper on the plate support 51 respectively play the roles of material stirring and preventing the slide support 55 from disengaging, further improving the efficiency and reliability of the drying device.

[0033] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus that includes a list of elements does not only include those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article, or apparatus.

[0034] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A stainless steel powder rotary drying device, comprising a frame (1), two frames (1) each rotatably provided with a support shaft (2), two support shafts (2) being fixedly connected to a rotating drum (3), characterized in that: A dispersion mechanism (5) is provided in the rotating drum (3); The dispersion mechanism (5) includes a plate support (51), the plate support (51) is fixed to the inner wall of the drum (3), and a frame support (52) is fixed to the side walls of the two plate supports (51). A rotating rake (53) is rotatably provided on the frame support (52), and both ends of the rotating rake (53) are sleeved with a linkage crank (54), one end of the linkage crank (54) is fixed to the rotating rake (53), and the other end of the linkage crank (54) is in contact with the plate support (51). The slide is provided with a plurality of sliding supports (55), and a partition screen (56) is fixedly connected to the sliding support (55). The two partition screens (56) are arranged in opposite directions, and a connecting pipe (561) is fixedly connected to the narrow end of one partition screen (56), and a shock-absorbing spring (562) is fixedly connected to the narrow end of the other partition screen (56). The outer diameter of the connecting pipe (561) is smaller than the inner diameter of the narrow end of the partition screen (56), and the outer diameter of the shock-absorbing spring (562) is larger than the outer diameter of the connecting pipe (561).

2. The stainless steel powder rotary drying device according to claim 1, characterized in that: A slot (510) is formed on each of the two plate supports (51), and a sliding support (55) slides in the slot (510).

3. The stainless steel powder rotary drying device according to claim 1, characterized in that: A plurality of the sliding supports (55) are each provided with a sliding groove (550), and a linkage crank (54) slides in the sliding groove (550).

4. The stainless steel powder rotary drying device according to claim 1, characterized in that: The support shaft (2) has a hollow interior, wherein a heat conduction system communicating with the interior of the drum (3) is provided at a hollow position of one of the support shafts (2), and a vacuum control system communicating with the interior of the drum (3) is provided at a hollow position of the other support shaft (2), and a sealing seat (4) is provided at the connection points between the heat conduction system and the vacuum control system and the drum (3).

5. The stainless steel powder rotary drying device according to claim 1, characterized in that: The rotating drum (3) is a tank body provided with an interlayer, comprising an outer shell layer, a sealed interlayer and an inner shell layer.

6. The stainless steel powder rotary drying device according to claim 1, characterized in that: A plurality of scooping plates (6) are provided on the inner wall of the rotary drum (3), and the scooping plates (6) include straight scooping plates (61) and inclined scooping plates (62). The plurality of straight scooping plates (61) are circumferentially distributed on the inner wall of the central cylinder of the rotary drum (3) and are fixedly connected thereto. The plurality of inclined scooping plates (62) are respectively provided on the upper conical portion and the lower conical portion of the rotary drum (3) and are fixedly connected thereto.

7. The stainless steel powder rotary drying device according to claim 1, characterized in that: The separating screen (56) is a conical structure.

8. The stainless steel powder rotary drying device according to claim 1, characterized in that: The separation screen (56) is slidably arranged on the straight copying plate (61) of the middle cylinder of the drum (3).

9. The stainless steel powder rotary drying device according to claim 1, characterized in that: A plurality of rake teeth are arranged at intervals on the rotating rake (53).

10. The stainless steel powder rotary drying device according to claim 1, characterized in that: The top and bottom ends of the plate support (51) are both provided with limit blocks.

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