Anti-sticking vacuum drying machine

Abstract

The utility model discloses an anti-sticking vacuum dryer, which belongs to the technical field of dryers and comprises a support table and a support frame arranged on the right side of the support table. A drying cylinder is fixedly mounted on the supporting frame, a feeding opening is fixedly formed in the right side of the top of the drying cylinder, and a discharging opening is fixedly formed in the lower side of the drying cylinder; a vacuum pipe communicated with the vacuum pump is fixedly mounted at the left end of the top of the drying cylinder; a stirring mechanism is mounted on the upper side of the supporting table and in the supporting frame; the stirring mechanism comprises a driving assembly and anti-sticking stirring assemblies, the driving assembly is mounted on the upper side of the supporting table and in the supporting frame, and a plurality of anti-sticking stirring assemblies are fixedly mounted at the output end of the driving assembly in a staggered manner; and heating mechanisms are mounted on the driving assembly, the anti-sticking stirring assembly and the drying cylinder. In this way, flowing heating liquid is injected into the interlayer of the outer wall of the drying cylinder through the heating mechanism, and meanwhile heated inert gas is injected into the bottom in the drying cylinder through the heating mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of dryers, in particular to an anti-sticking vacuum dryer. Background Art

[0002] When drying some materials that are prone to changes in material properties under high temperatures, they are usually placed in a vacuum cylinder. Under low pressure, the moisture in the material can evaporate at a lower temperature, thus avoiding affecting the material characteristics.

[0003] For example, Chinese patent CN218955319U discloses a rake vacuum dryer, which drives a rotating shaft to rotate in a vacuum barrel through a motor, stirs the material in the vacuum barrel through stirring blades, and heats the material in the vacuum barrel to accelerate the evaporation of water in the material.

[0004] However, some paste or fine powder materials are easy to stick to the inner wall of the vacuum barrel and the stirring blades when heated. If they are not cleaned in time, the drying efficiency will be affected. At the same time, the materials adhering to the inner wall of the vacuum barrel and the stirring blades are prone to performance changes under long-term heating, affecting the drying quality.

[0005] Based on this, the utility model designs an anti-sticking vacuum dryer to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides an anti-sticking vacuum dryer.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] An anti-sticking vacuum dryer comprises a support table and a support frame arranged on the right side of the support table;

[0009] A drying cylinder is fixedly installed on the support frame, a feed port is fixedly installed on the right side of the top of the drying cylinder, and a discharge port is fixedly installed on the bottom of the drying cylinder; a vacuum tube connected to a vacuum pump is fixedly installed on the left end of the top of the drying cylinder; a stirring mechanism is installed on the upper side of the support platform and inside the support frame;

[0010] The stirring mechanism includes a driving component and an anti-sticking stirring component. The driving component is installed on the upper side of the support platform and inside the support frame. A plurality of groups of anti-sticking stirring components are staggered and fixedly installed on the output end of the driving component. A heating mechanism is installed on the driving component, the anti-sticking stirring component and the drying cylinder.

[0011] Furthermore, the drying cylinder includes an outer shell, an inner shell and a circulation layer. The outer shell is fixedly mounted on the upper side of the support frame, the inner shell is fixedly mounted inside the outer shell, and the circulation layer is formed between the outer shell and the inner shell.

[0012] Furthermore, the driving assembly includes a motor, an insertion shaft, a rotating shaft and a slot. The motor is fixedly mounted on the upper side of the support platform, and the output end of the motor is fixedly connected to one end of the insertion shaft through a coupling; the right end of the rotating shaft is rotatably mounted inside the inner shell, the left end of the rotating shaft passes through the outer shell and the inner shell, the left end of the rotating shaft is rotatably connected to the outer shell and the inner shell, and a mechanical seal is installed at the connection between the rotating shaft and the outer shell and the inner shell; a slot is opened at the left end of the rotating shaft, and the slot is plugged into the insertion shaft.

[0013] Furthermore, the anti-sticking stirring assembly includes a support rod, a scraper and a knocking assembly. The support rod is symmetrically fixedly installed on the rotating shaft, and the scraper is fixedly installed on the end of the support rod. The scraper is slidably connected to the inner wall of the inner shell; the knocking assembly is installed at one end of the support rod.

[0014] Furthermore, the knocking assembly includes a support rod, a stirring plate and a knocking block, one end of the support rod is rotatably mounted on the middle part of the support rod, the other end of the support rod is fixedly mounted with the stirring plate, and the middle part of the stirring plate is fixedly mounted with a knocking block for knocking the scraper.

[0015] Furthermore, the heating mechanism includes a connecting component and an internal heating component, the connecting component is installed on the outer wall of the shell, and the internal heating component is installed inside the rotating shaft and the support rod.

[0016] Furthermore, the connecting component includes a first heat source tube, a second heat source tube, a mounting block and an arc groove; the first heat source tube is fixedly mounted on the top of the outer shell, the first heat source tube is connected to the circulation layer, and the first heat source tube and the circulation layer are filled with heated liquid; the mounting block is fixedly mounted on the left side wall of the outer shell; an arc groove is provided on the lower side of the mounting block; a second heat source tube for conveying heated inert gas is fixedly mounted on the bottom of the mounting block, and the second heat source tube is connected to the arc groove.

[0017] Furthermore, the internal heating component includes a connecting groove, an air groove and an air hole. A connecting groove is opened inside the rotating shaft, an air groove is opened inside the support rod, and multiple air holes are opened on the support rod at equal intervals; the air holes, air grooves and connecting grooves are connected to the second heat source tube through an arc groove.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The material is added into the drying cylinder through the feed port, the feed port is closed, and the air inside the drying cylinder is extracted through the vacuum tube to keep the internal pressure of the drying cylinder below 3hPa; the driving component drives the anti-sticking stirring component to stir the material to prevent the material from sticking to the inner wall of the drying cylinder; the flowing heating liquid is poured into the interlayer of the outer wall of the drying cylinder through the heating mechanism, and the heated inert gas is filled into the bottom of the drying cylinder through the heating mechanism; the material is heated in an internal environment with a pressure below 3hPa, so that the moisture in the material can evaporate at a lower temperature, thereby avoiding damage to the material properties; at the same time, the heated inert gas is transported into the material, and the material is blown by the airflow, so that the inside of the material is evenly heated while facilitating the removal of water vapor, thereby improving the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a three-dimensional diagram of an anti-sticking vacuum dryer of the utility model;

[0022] Figure 2 This is a front view of an anti-sticking vacuum dryer of the utility model;

[0023] Figure 3 It is a front cross-sectional view of an anti-sticking vacuum dryer of the utility model;

[0024] Figure 4 This is a three-dimensional diagram of an anti-sticking vacuum dryer of the utility model after removing part of the outer shell;

[0025] Figure 5 for Figure 3 The enlarged view of point A in the middle;

[0026] Figure 6 for Figure 4 Enlarged view of point B in the middle.

[0027] The numbers in the figure represent:

[0028] 1. Support table; 2. Support frame; 3. Drying cylinder; 31. Outer shell; 32. Inner shell; 33. Circulation layer; 4. Vacuum tube; 5. Heating mechanism; 51. First heat source tube; 52. Second heat source tube; 53. Mounting block; 54. Arc groove; 55. Connecting groove; 56. Air groove; 57. Air hole; 6. Stirring mechanism; 61. Drive assembly; 611. Motor; 612. Insert shaft; 613. Rotating shaft; 614. Slot; 62. Anti-sticking stirring assembly; 621. Support rod; 622. Scraper; 623. Support rod; 624. Stirring plate; 625. Knocking block; 7. Feed inlet; 8. Discharge outlet. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0031] In some embodiments, please refer to the attached instructions. Figure 1-4 , an anti-sticking vacuum drying machine, comprising a support table 1 and a support frame 2 arranged on the right side of the support table 1;

[0032] A drying cylinder 3 is fixedly mounted on the support frame 2, a feed port 7 is fixedly mounted on the top right side of the drying cylinder 3, and a discharge port 8 is fixedly mounted on the bottom side of the drying cylinder 3; a vacuum tube 4 connected to a vacuum pump is fixedly mounted on the top left end of the drying cylinder 3; a stirring mechanism 6 is mounted on the upper side of the support platform 1 and inside the support frame 2;

[0033] The stirring mechanism 6 includes a driving component 61 and an anti-sticking stirring component 62. The driving component 61 is installed on the upper side of the support platform 1 and inside the support frame 2. A plurality of groups of anti-sticking stirring components 62 are staggered and fixedly installed on the output end of the driving component 61. A heating mechanism 5 is installed on the driving component 61, the anti-sticking stirring component 62 and the drying cylinder 3.

[0034] In this embodiment, when the anti-sticking vacuum dryer is working normally, the material is added to the drying cylinder 3 through the feed port 7, the feed port 7 is closed, and the air inside the drying cylinder 3 is extracted through the vacuum tube 4, so that the internal pressure of the drying cylinder 3 is maintained below 3hPa; the driving component 61 drives the anti-sticking stirring component 62 to stir the material to prevent the material from sticking to the inner wall of the drying cylinder 3; the flowing heating liquid is poured into the interlayer of the outer wall of the drying cylinder 3 through the heating mechanism 5, and the heated inert gas is filled into the bottom of the drying cylinder 3 through the heating mechanism 5; the material is heated in an internal environment with a pressure below 3hPa, so that the moisture in the material can evaporate at a lower temperature, thereby avoiding damage to the material properties; at the same time, the heated inert gas is transported into the material, and the material is blown by the airflow, so that the inside of the material is evenly heated while facilitating the removal of water vapor, thereby improving the drying efficiency.

[0035] In some embodiments, Figure 1-6 As shown, as a preferred embodiment of the utility model, the drying cylinder 3 includes an outer shell 31, an inner shell 32 and a circulation layer 33, the outer shell 31 is fixedly mounted on the upper side of the support frame 2, the inner shell 32 is fixedly mounted inside the outer shell 31, and the circulation layer 33 is formed between the outer shell 31 and the inner shell 32;

[0036] The driving assembly 61 includes a motor 611, an insertion shaft 612, a rotating shaft 613 and a slot 614. The motor 611 is fixedly installed on the upper side of the support platform 1, and the output end of the motor 611 is fixedly connected to one end of the insertion shaft 612 through a coupling; the right end of the rotating shaft 613 is rotatably installed inside the inner shell 32, and the left end of the rotating shaft 613 passes through the outer shell 31 and the inner shell 32. The left end of the rotating shaft 613 is rotatably connected to the outer shell 31 and the inner shell 32, and a mechanical seal is installed at the connection between the rotating shaft 613 and the outer shell 31 and the inner shell 32; a slot 614 is opened at the left end of the rotating shaft 613, and the slot 614 is plugged into the insertion shaft 612.

[0037] The mechanical seal is configured as a structure that is mature in the market in this field.

[0038] The anti-sticking stirring assembly 62 includes a support rod 621, a scraper 622 and a knocking assembly. The support rod 621 is symmetrically fixedly installed on the rotating shaft 613, and the end of the support rod 621 is fixedly installed with a scraper 622. The scraper 622 is slidably connected to the inner wall of the inner shell 32; the knocking assembly is installed at one end of the support rod 621;

[0039] The knocking assembly includes a support rod 623, a stirring plate 624 and a knocking block 625. One end of the support rod 623 is rotatably mounted on the middle of the support rod 621, and the other end of the support rod 623 is fixedly mounted with the stirring plate 624. The middle of the stirring plate 624 is fixedly mounted with a knocking block 625 for knocking the scraper 622.

[0040] When the support rod 621 moves downward, the stirring plate 624 is located at the upper side of the support rod 621, and when the support rod 621 moves upward, the stirring plate 624 is located at the lower side of the support rod 621;

[0041] The heating mechanism 5 includes a communication component and an internal heating component. The communication component is installed on the outer wall of the housing 31, and the internal heating component is installed inside the rotating shaft 613 and the support rod 621.

[0042] The connecting component includes a first heat source tube 51, a second heat source tube 52, a mounting block 53 and an arc groove 54. The first heat source tube 51 is fixedly mounted on the top of the shell 31, the first heat source tube 51 is connected to the circulation layer 33, and the first heat source tube 51 and the circulation layer 33 are filled with heated liquid; the mounting block 53 is fixedly mounted on the left side wall of the shell 31; an arc groove 54 is opened on the lower side of the mounting block 53; the second heat source tube 52 for conveying heated inert gas is fixedly mounted on the bottom of the mounting block 53, and the second heat source tube 52 is connected to the arc groove 54;

[0043] The internal heating component includes a connecting groove 55, an air groove 56 and an air hole 57. A connecting groove 55 is opened inside the rotating shaft 613, an air groove 56 is opened inside the support rod 621, and multiple air holes 57 are opened at equal intervals on the support rod 621; the air holes 57, the air groove 56 and the connecting groove 55 are connected to the second heat source tube 52 through the arc groove 54.

[0044] In this embodiment, when the drying cylinder 3, the heating mechanism 5 and the stirring mechanism 6 are working normally, the motor 611 drives the rotating shaft 613 to rotate through the plug shaft 612 and the slot 614, and the rotation of the rotating shaft 613 drives the multiple groups of support rods 621 to rotate, and the support rods 621 drive the scraper 622 to rotate, so that the material adhering to the inner wall of the inner shell 32 is scraped off by the scraper 622, so as to prevent the material from being heated for a long time on the inner wall of the inner shell 32 and adhering to the inner wall of the inner shell 32; at the same time, through the multiple groups of staggered scrapers 622, the stirring of the material is continuous and uniform; the rotation of the support rod 621 drives the support rod 623 to rotate, and when the support rod 621 moves to contact with the material, the stirring plate 624 on the support rod 623 separates from the support rod 621 under the resistance of the material, until the support rod 621 moves upward, the material falls off the stirring plate 624, and the stirring plate 62 4 and the scraper 622 respectively stir the materials in layers to make the stirring more uniform; when the support rod 621 moves downward, the support rod 623 drives the knocking block 625 to move downward under the action of gravity, and the knocking block 625 knocks the scraper 622 to drive the scraper 622 to vibrate, thereby knocking off the materials sticking on the scraper 622; the first heat source pipe 51 is used to transport the flowing heating liquid into the interlayer circulation layer 33 between the outer shell 31 and the inner shell 32, and the heating liquid heats the materials inside the inner shell 32 through the inner shell 32; the second heat source pipe 52 is used to transport the heated inert gas to the arc groove 54 at the bottom of the mounting block 53; when the connecting groove 55 moves to the lower side, the arc groove 54 is connected with the connecting groove 55, and the heated inert gas is transported to between the materials through the arc groove 54, the connecting groove 55, the gas groove 56 and the gas hole 57.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An anti-sticking vacuum dryer, comprising a support table (1) and a support frame (2) arranged on the right side of the support table (1), characterized in that: A drying cylinder (3) is fixedly mounted on the support frame (2); a feed port (7) is fixedly mounted on the right side of the top of the drying cylinder (3); and a discharge port (8) is fixedly mounted on the bottom side of the drying cylinder (3); a vacuum tube (4) connected to a vacuum pump is fixedly mounted on the left end of the top of the drying cylinder (3); a stirring mechanism (6) is mounted on the upper side of the support platform (1) and inside the support frame (2); The stirring mechanism (6) comprises a driving component (61) and an anti-sticking stirring component (62); the driving component (61) is mounted on the upper side of the support platform (1) and inside the support frame (2); a plurality of groups of anti-sticking stirring components (62) are staggered and fixedly mounted on the output end of the driving component (61); and a heating mechanism (5) is mounted on the driving component (61), the anti-sticking stirring component (62) and the drying cylinder (3).

2. The anti-sticking vacuum dryer according to claim 1, characterized in that: The drying cylinder (3) comprises an outer shell (31), an inner shell (32) and a circulation layer (33); the outer shell (31) is fixedly mounted on the upper side of the support frame (2); the inner shell (32) is fixedly mounted inside the outer shell (31); and the circulation layer (33) is formed between the outer shell (31) and the inner shell (32).

3. The anti-sticking vacuum dryer according to claim 2, characterized in that: The driving assembly (61) comprises a motor (611), an insertion shaft (612), a rotating shaft (613) and a slot (614); the motor (611) is fixedly mounted on the upper side of the support platform (1); the output end of the motor (611) is fixedly connected to one end of the insertion shaft (612) via a coupling; the right end of the rotating shaft (613) is rotatably mounted inside the inner shell (32); the left end of the rotating shaft (613) passes through the outer shell (31) and the inner shell (32); the left end of the rotating shaft (613) is rotatably connected to the outer shell (31) and the inner shell (32); and a mechanical seal is installed at the connection between the rotating shaft (613) and the outer shell (31) and the inner shell (32); a slot (614) is provided at the left end of the rotating shaft (613), and the slot (614) is plugged into the insertion shaft (612).

4. The anti-sticking vacuum dryer according to claim 3, characterized in that: The anti-sticking stirring component (62) comprises a support rod (621), a scraper (622) and a knocking component. The support rod (621) is symmetrically fixedly installed on the rotating shaft (613), and the scraper (622) is fixedly installed at the end of the support rod (621). The scraper (622) is slidably connected to the inner wall of the inner shell (32); the knocking component is installed at one end of the support rod (621).

5. The anti-sticking vacuum dryer according to claim 4, characterized in that: The knocking assembly comprises a support rod (623), a stirring plate (624) and a knocking block (625), one end of the support rod (623) is rotatably mounted on the middle part of the support rod (621), the other end of the support rod (623) is fixedly mounted with the stirring plate (624), and the middle part of the stirring plate (624) is fixedly mounted with the knocking block (625) for knocking the scraper (622).

6. The anti-sticking vacuum dryer according to claim 5, characterized in that: The heating mechanism (5) comprises a connecting component and an internal heating component. The connecting component is installed on the outer wall of the outer shell (31), and the internal heating component is installed inside the rotating shaft (613) and the support rod (621).

7. The anti-sticking vacuum dryer according to claim 6, characterized in that: The connecting component comprises a first heat source tube (51), a second heat source tube (52), a mounting block (53) and an arc-shaped groove (54); the first heat source tube (51) is fixedly mounted on the top of the outer shell (31); the first heat source tube (51) is connected to the circulation layer (33); the first heat source tube (51) and the circulation layer (33) are filled with heated liquid; the mounting block (53) is fixedly mounted on the left side wall of the outer shell (31); an arc-shaped groove (54) is provided on the lower side of the mounting block (53); a second heat source tube (52) for conveying heated inert gas is fixedly mounted on the bottom of the mounting block (53); the second heat source tube (52) is connected to the arc-shaped groove (54).

8. The anti-sticking vacuum dryer according to claim 7, characterized in that: The internal heating component comprises a connecting groove (55), an air groove (56) and an air hole (57); a connecting groove (55) is provided inside the rotating shaft (613); an air groove (56) is provided inside the supporting rod (621); and a plurality of air holes (57) are provided on the supporting rod (621) at equal intervals; the air holes (57), the air groove (56) and the connecting groove (55) are connected to the second heat source tube (52) via an arc groove (54).

Images