Boron carbide fine powder convection drying equipment

Abstract

The utility model discloses boron carbide fine powder convection drying equipment, which belongs to the field of powder drying equipment and is characterized in that a chamber for drying boron carbide fine powder in a flowing manner is arranged into a plurality of volute-shaped structures, hot air or cold air enters from one side of the edge of a volute body, and the hot air or the cold air enters from the other side of the edge of the volute body; the boron carbide fine powder can flow in the cavity in a spiral mode, the contact time of the boron carbide fine powder and hot air or cold air in the cavity is prolonged, the contact uniformity of the boron carbide fine powder and the hot air or cold air in the cavity is improved, and the drying efficiency of the boron carbide fine powder is improved. And during actual production and use of equipment, the mounting number of the second volutes or the third volutes can be properly increased or decreased according to needs, the retention time of the boron carbide fine powder in the cavity is changed, and the use requirements are better met.

Description

Technical Field

[0001] The utility model relates to the field of powder drying equipment, and more specifically, to a convection drying equipment for fine boron carbide powder. Background Art

[0002] In modern industrial production, fine boron carbide powder, as an important high-performance material, is widely used in various fields, such as mechanical processing, aerospace, national defense and military industry, etc. However, fine boron carbide powder often contains a certain amount of moisture during production and processing, which not only affects its performance and quality, but may also cause problems in subsequent use.

[0003] In order to dry it during the processing, it is generally necessary to use drying equipment for processing. Although the existing drying equipment has many advantages in use, it mostly flows in the form of direct current inside the drying chamber, and the contact time with hot air inside the drying chamber is short, which is not conducive to the full drying of the boron carbide fine powder and affects the drying efficiency. Therefore, we proposed a convection drying equipment for boron carbide fine powder to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a convection drying equipment for boron carbide fine powder. The convection drying equipment sets the chamber used for the flow drying of boron carbide fine powder into a plurality of volute-shaped structures. Hot air or cold air enters from one side of the edge of the volute body, so that the boron carbide fine powder can flow in a spiral form inside the chamber, thereby increasing the contact time and uniformity of the boron carbide fine powder with the hot air or cold air inside the chamber, thereby improving the drying efficiency of the boron carbide fine powder. When the equipment is actually produced and used, the number of volute two or volute three can be appropriately increased or decreased as needed to change the residence time of the boron carbide fine powder inside the chamber, thereby better meeting the needs of use.

[0006] 2. Technical solution

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A convection drying device for fine boron carbide powder, comprising a volute 1, a plurality of volute 2s and a plurality of volute 3s, wherein the volute 1, a plurality of volute 2s and a plurality of volute 3s have the same structure, and the volute 1, a plurality of volute 2s and a plurality of volute 3s are all hollow in the interior, and the corresponding connection points of the volute 1, a plurality of volute 2s and a plurality of volute 3s are fixedly installed by bolts, a blower 1 is fixedly installed on the top of the volute 1, and a collecting bucket is fixedly installed on the bottom of the volute 3 located at the bottom by bolts;

[0009] A feed pipe is fixedly installed on the pipe interface end of one side of the volute one, several pipe interface ends of the volute two are connected through a connecting pipe one, and one side of the connecting pipe one is fixedly connected to a hot air inlet pipe, and a blower two is fixedly installed on the end of the hot air inlet pipe through an air inlet hood one, several pipe interface ends of the volute three are connected through a connecting pipe two, and one side of the connecting pipe two is fixedly connected to a cold air inlet pipe, and a blower three is fixedly installed on the end of the cold air inlet pipe through an air inlet hood two.

[0010] Furthermore, an air outlet is provided on the outer edge of the top of the collecting barrel, a reinforced metal mesh is fixedly installed inside the air outlet, and a filter cloth is fixedly installed on the inner wall of the reinforced metal mesh.

[0011] Furthermore, a discharge opening is provided at the bottom of the collecting barrel, and a sealing plate is fixedly installed at the bottom of the discharge opening by bolts.

[0012] Furthermore, an installation opening is provided at the top of an inner wall of the air inlet hood, an electric heating tube is fixedly installed on the installation opening, the heating tube portion of the electric heating tube extends to the interior of the air inlet hood, the junction box portion of the electric heating tube extends to the top of an outer wall of the air inlet hood, and a power cord is fixedly connected to one side of the junction box portion of the electric heating tube.

[0013] Furthermore, heat insulation pads are fixedly attached to the outer walls of the volute 2, the connecting pipe 1 and the hot air inlet pipe.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] In this solution, the chamber for flowing and drying the fine boron carbide powder is set into a plurality of volute-shaped structures, and hot air or cold air enters from one side of the edge of the volute body, so that the fine boron carbide powder can flow in a spiral form inside the chamber, thereby increasing the contact time and uniformity of the fine boron carbide powder with the hot air or cold air inside the chamber, thereby improving the drying efficiency of the fine boron carbide powder. In actual production and use of the equipment, the number of volute two or volute three can be appropriately increased or decreased as needed, and the residence time of the fine boron carbide powder inside the chamber can be changed, which is more in line with the needs of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the shell structure of the volute 1, volute 2 and volute 3 of the utility model;

[0019] Figure 3 It is a schematic diagram of the internal structure of the air inlet cover of the utility model.

[0020] Description of the numbers in the figure:

[0021] 1. Volute 1; 2. Volute 2; 3. Volute 3; 4. Blower 1; 5. Collecting barrel; 501. Air outlet opening; 502. Reinforced metal mesh; 6. Feeding pipe; 7. Connecting pipe 1; 8. Hot air inlet pipe; 9. Inlet hood 1; 10. Blower 2; 11. Connecting pipe 2; 12. Cold air inlet pipe; 13. Inlet hood 2; 14. Blower 3; 15. Electric heating pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention specification; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0023] Embodiment 1:

[0024] See also Figure 1-Figure 3A convection drying device for fine boron carbide powder comprises a volute 1, a plurality of volutes 2 and a plurality of volutes 3, wherein the volute 1, the plurality of volutes 2 and the plurality of volutes 3 are all of the same structure, and the volute 1, the plurality of volutes 2 and the plurality of volutes 3 are all hollow in the interior, and the corresponding connection points of the volute 1, the plurality of volutes 2 and the plurality of volutes 3 are fixedly installed by bolts, a blower 4 is fixedly installed on the top of the volute 1, and a collecting bucket 5 is fixedly installed on the bottom of the volute 3 located at the bottom by bolts;

[0025] A feed pipe 6 is fixedly installed on the pipe interface end of one side of the volute 1, and the pipe interface ends of several volutes 2 are connected through a connecting pipe 7, and a hot air inlet pipe 8 is fixedly connected to one side of the connecting pipe 7, and a blower 10 is fixedly installed on the end of the hot air inlet pipe 8 through an air inlet cover 9, and the pipe interface ends of several volutes 3 are connected through a connecting pipe 11, and a cold air inlet pipe 12 is fixedly connected to one side of the connecting pipe 11, and a blower 14 is fixedly installed on the end of the cold air inlet pipe 12 through an air inlet cover 13;

[0026] An air outlet opening 501 is provided on the outer edge of the top of the collecting barrel 5, a reinforced metal mesh 502 is fixedly installed inside the air outlet opening 501, a filter cloth is fixedly installed on the inner wall of the reinforced metal mesh 502, a discharge opening is provided at the bottom of the collecting barrel 5, and a sealing plate is fixedly installed at the bottom of the discharge opening by bolts, an installation opening is provided at the top of the inner wall of the air inlet hood 9, an electric heating tube 15 is fixedly installed on the installation opening, the heating tube portion of the electric heating tube 15 extends to the inside of the air inlet hood 9, the junction box portion of the electric heating tube 15 extends to the top of the outer wall of the air inlet hood 9, and a power cord is fixedly connected to one side of the junction box portion of the electric heating tube 15.

[0027] The operating principle of this kind of boron carbide fine powder convection drying equipment is:

[0028] First, the blower 10 and the electric heating tube 15 installed inside the air inlet hood 9 are started, and the outside wind is sucked into the air inlet hood 9 through the blower 10 and heated by the electric heating tube 15 to form hot air, and then the hot air is transported to the inside of the several volutes 2 through the hot air inlet pipe 8 and the connection pipe 7 to preheat the chambers inside the several volutes 2, and then the boron carbide fine powder is transported to the inside of the volute 1 through the feeding pipe 6 in the form of air flow, and at the same time, under the premise of starting the blower 4, the inside of the several volutes 2 is spirally heated. The boron carbide powder is continuously blown downward and heated at the same time, and flows to the inside of several volutes 3 in a hot state. At this time, the cold air from the outside is sucked into the inside of the air inlet hood 2 13 through the blower 3 14, and then the cold air is transported to the inside of several volutes 3 3 through the cold air inlet pipe 12 and the connection pipe 2 11, so as to cool the hot boron carbide fine powder, so that the moisture forms fine water droplets and is discharged outward through the air outlet opening 501 on the collecting barrel 5 when the cold and hot are alternated, and the dry boron carbide fine powder falls into the collecting barrel 5, thereby completing the drying process.

[0029] Embodiment 2:

[0030] In view of the above embodiment 1, for further description, refer to Figure 1 Insulation pads are fixedly attached to the outer walls of the volute 2, the connecting pipe 7 and the hot air inlet pipe 8.

[0031] By fixing and sticking heat insulation pads on the outer walls of the volute 2, the connecting pipe 7 and the hot air inlet pipe 8, it can not only keep the volute 2, the connecting pipe 7 and the hot air inlet pipe 8 warm, but also reduce the probability of heat dissipation to the outside and reduce the probability of the workshop temperature rising.

[0032] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A convection drying device for fine boron carbide powder, comprising a volute 1 (1), a plurality of volute 2 (2) and a plurality of volute 3 (3), characterized in that: The structures of the volute one (1), a plurality of the volute two (2) and a plurality of the volute three (3) are all the same, and the interiors of the volute one (1), a plurality of the volute two (2) and a plurality of the volute three (3) are all hollow structures, and the corresponding connecting parts of the volute one (1), a plurality of the volute two (2) and a plurality of the volute three (3) are fixedly installed by bolts, a blower one (4) is fixedly installed on the top of the volute one (1), and a collecting bucket (5) is fixedly installed on the bottom of the volute three (3) located at the bottom by bolts; A feed pipe (6) is fixedly installed on the pipe interface end of one side of the volute one (1), and the pipe interface ends of several volutes two (2) are connected through a connecting pipe one (7), and a hot air inlet pipe (8) is fixedly connected to one side of the connecting pipe one (7), and a blower two (10) is fixedly installed on the end of the hot air inlet pipe (8) through an air inlet cover one (9), and the pipe interface ends of several volutes three (3) are connected through a connecting pipe two (11), and a cold air inlet pipe (12) is fixedly connected to one side of the connecting pipe two (11), and a blower three (14) is fixedly installed on the end of the cold air inlet pipe (12) through an air inlet cover two (13).

2. The convection drying equipment for fine boron carbide powder according to claim 1, characterized in that: An air outlet opening (501) is provided on the outer edge of the top of the collection barrel (5), a reinforced metal mesh (502) is fixedly installed inside the air outlet opening (501), and a filter cloth is fixedly installed on the inner wall of the reinforced metal mesh (502).

3. The convection drying equipment for fine boron carbide powder according to claim 1 is characterized in that: The bottom of the collecting barrel (5) is provided with a discharge opening, and a sealing plate is fixedly mounted on the bottom of the discharge opening by means of bolts.

4. The convection drying equipment for fine boron carbide powder according to claim 1, characterized in that: An installation opening is provided at the top of the inner wall of the air inlet hood (9), and an electric heating tube (15) is fixedly installed on the installation opening. The heating tube portion of the electric heating tube (15) extends into the interior of the air inlet hood (9), and the junction box portion of the electric heating tube (15) extends to the top of the outer wall of the air inlet hood (9), and a power line is fixedly connected to one side of the junction box portion of the electric heating tube (15).

5. The convection drying equipment for fine boron carbide powder according to claim 1, characterized in that: Heat insulation pads are fixedly adhered to the outer walls of the volute 2 (2), the connecting pipe 1 (7) and the hot air inlet pipe (8).

Images