A crystallization compound for SiC and melamine ultrasonic

Abstract

The present application belongs to the field of material instruments, and particularly relates to a crystallization compound for SiC and melamine ultrasonic. The compound comprises a compound cup, an ice bath pot and a bottom plug. The compound cup is composed of a compound wall, a cup rim, a vibration transmission pipe and a pipe rim. The upper part of the compound wall is provided with the cup rim. The bottom of the compound wall is provided with the vibration transmission pipe, and the top of the vibration transmission pipe is provided with the pipe rim. The ice bath pot comprises a pot bottom, a pot wall, a pot rim and a connecting pipe. The upper part of the pot bottom is provided with the connecting pipe. The connecting pipe can be sealingly inserted into the vibration transmission pipe. The upper part of the pot bottom is the pot wall, and the upper part of the pot wall is provided with the pot rim. The pot rim sealingly cooperates with the cup rim. The upper part of the pot wall is provided with a flat pressing hole. The lower part of the bottom plug is a plug head, which sealingly cooperates with the connecting pipe. The upper part of the plug head is a limiting disc, which is clamped on the top of the connecting pipe. The upper part of the limiting disc is a plug rod, and the top of the plug rod is provided with a lifting ring. The present application is used for the crystallization compound of SiC and melamine, and has the advantages of sufficient compound and better catalytic effect of the compound material after firing.

Description

Technical Field

[0001] The invention belongs to the field of devices of photocatalytic materials, and in particular relates to a crystallization compounder for SiC and melamine ultrasound. Background Art

[0002] Our laboratory has compared SiC / g-C3N4 composites using samples of SiC and melamine for calcination. The results showed that ultrasonically crystallized SiC / melamine composites performed better than mechanically mixed composites, primarily due to the enhanced photocatalytic activity of the SiC / g-C3N4. This is primarily due to the fact that the melamine crystals, after precipitation, can more fully integrate with the silicon carbide particles, resulting in a better bond during the calcination process. In production, materials with better performance will demonstrate stronger product competitiveness in large-scale production. Melamine has a low solubility in water, so it readily crystallizes at low temperatures, resulting in larger crystals when left to stand at low temperatures. Our team used micron-sized silicon carbide powder, which adsorbs onto the surface of the melamine crystals during crystallization. Because larger volume results in a smaller specific surface area, fewer silicon carbide particles can be adsorbed, ultimately resulting in lower photocatalytic performance of the SiC / g-C3N4 composite. Therefore, a method or apparatus is needed to enable melamine to crystallize at a smaller particle size to improve the photocatalytic performance of the composite material SiC / g-C3N4. Summary of the Invention

[0003] To address the aforementioned technical challenges of crystallizing melamine and the scale of the project, the present invention has designed a crystallization device for ultrasonically crystallizing SiC and melamine. The device comprises a crystallization cup 1, an ice bath 2, and a bottom plug 3; the crystallization cup 1 is inserted into the inner bottom of the ice bath 2; and the bottom plug 3 is inserted into the bottom of the ice bath 2.

[0004] The composite cup 1 is composed of a composite wall 1.1, a cup rim 1.2, a vibration transmission tube 1.3 and a tube rim 1.4; the main body of the composite cup 1 is the composite wall 1.1, and the composite wall 1.1 is in the shape of a bowl with a larger top and a smaller bottom; the upper edge of the composite wall 1.1 is provided with a ring-shaped cup rim 1.2 that is tilted outward; the bottom of the composite wall 1.1 is provided with a cylindrical vibration transmission tube 1.3; the vibration transmission tube 1.3 is passed through from top to bottom, and a tube rim 1.4 that is tilted outward is provided on its top to facilitate the insertion of the bottom plug 3.

[0005] The ice bath pot 2 includes a pot bottom 2.1, a pot wall 2.2, a pot rim 2.3 and a connecting pipe 2.5; the bottom of the ice bath pot 2 is a circular pot bottom 2.1, and a connecting pipe 2.5 is provided at the upper center position of the pot bottom 2.1 to protrude upward, and the connecting pipe 2.5 is connected to the interior of the external ice bath pot 2; the connecting pipe 2.5 can be sealed and inserted into the lower part of the vibration transmission tube 1.3; a cylindrical pot wall 2.2 is provided at the upper part of the edge of the pot bottom 2.1, and an outward-inclined pot rim 2.3 is provided at the upper edge of the pot wall 2.2; when the compound cup 1 is connected to the ice bath pot 2, the upper part of the pot rim 2.3 is sealed with the lower part of the cup rim 1.2; the space between the ice bath pot 2 and the compound cup 1 is used to place iced water; the upper part of the pot wall 2.2 is provided with a pressure equalization hole 2.4, which is used to balance the internal and external atmospheric pressures when the ice melts.

[0006] The bottom plug 3 includes a plug head 3.1, a limiting disk 3.2, a plug rod 3.3 and a lifting ring 3.4; the lower part of the bottom plug 3 is a cylindrical plug head 3.1, which is inserted into the connecting tube 2.5 and sealed with each other; a circular limiting disk 3.2 is provided on the upper part of the plug head 3.1; the diameter of the limiting disk 3.2 is larger than the diameter of the plug head 3.1, but smaller than the inner diameter of the vibration transmission tube 1.3; the outer edge of the limiting disk 3.2 is stuck on the top of the connecting tube 2.5; the upper part of the limiting disk 3.2 is provided with a plug rod 3.3, and the top of the plug rod 3.3 is provided with a lifting ring 3.4.

[0007] The crucible bottom 2.1 and pot wall 2.2 are made of insulating material. The composite wall 1.1 is made of metal to facilitate heat conduction. The vibration transmission tube 1.3 is also made of metal to facilitate ultrasonic transmission. When the plug 3.1 is inserted into the connecting tube 2.5, the lifting ring 3.4 is higher than the upper portion of the tube rim 1.4. During the crystallization process, the composite is placed in an ultrasonic cleaning machine.

[0008] The beneficial technical effects of the present invention are:

[0009] Now, the various invention points of this application are further elaborated in combination with the technical features and technical effects: (1) The present invention is designed with a metal vibration transmission tube, which is conducive to transmitting the ultrasonic waves generated by the ultrasonic cleaning machine into the composite cup, making the crystals of melamine more uniform and fine, and effectively allowing more silicon carbide powder to adhere to the crystal surface. (2) The bottom of the ice bath pot of the present invention is provided with a connecting pipe for connecting to the vibration transmission tube, and a bottom plug is provided to seal the connecting pipe. Therefore, the connecting pipe can be sealed through the bottom plug first, and then ice water can be put into the ice bath pot, and then the composite cup can be connected; the bottom plug can be pulled out before ultrasonic treatment. Through this design, ice water can be effectively put into the composite cup and the ice bath pot without leaking out, and at the same time, the water in the ultrasonic cleaning machine enters the vibration transmission tube; this design can effectively reduce the disadvantage of poor vibration transmission effect caused by only transmitting vibration through the pot wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A perspective view of an assembly of a SiC and melamine ultrasonic crystallization composite device;

[0011] Figure 2 A schematic diagram of the explosion structure of a SiC and melamine ultrasonic crystallization composite;

[0012] Figure 3 Schematic diagram of the structure of the composite cup from an oblique top view;

[0013] Figure 4 Schematic diagram of the structure of the ice bath pot from an oblique top view;

[0014] Figure 5 This is a schematic diagram of the bottom plug structure when viewed from above;

[0015] Figure 6 It is a vertical cross-sectional view of a crystallization composite device for SiC and melamine ultrasonication.

[0016] In the figure, 1-composite cup, 2-ice bath pot, 3-bottom plug; 1.1-composite wall, 1.2-cup edge, 1.3-vibration transmission tube, 1.4-tube edge; 2.1-pot bottom, 2.2-pot wall, 2.3-pot edge, 2.4-flat pressure hole, 2.5-connecting pipe; 3.1-plug head, 3.2-limiting plate, 3.3-plug rod, 3.4-lifting ring. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-6 The specific structure of the present invention is further described with embodiments:

[0018] The present invention designs a composite device for ultrasonic crystallization of SiC and melamine. The composite device comprises a composite cup 1, an ice bath pot 2, and a bottom plug 3; the composite cup 1 is inserted into the inner bottom of the ice bath pot 2; and the bottom plug 3 is inserted into the bottom of the ice bath pot 2.

[0019] The composite cup 1 is composed of a composite wall 1.1, a cup rim 1.2, a vibration transmission tube 1.3 and a tube rim 1.4; the main body of the composite cup 1 is the composite wall 1.1, and the composite wall 1.1 is in the shape of a bowl with a larger top and a smaller bottom; the upper edge of the composite wall 1.1 is provided with a ring-shaped cup rim 1.2 that is tilted outward; the bottom of the composite wall 1.1 is provided with a cylindrical vibration transmission tube 1.3; the vibration transmission tube 1.3 is passed through from top to bottom, and a tube rim 1.4 that is tilted outward is provided on its top to facilitate the insertion of the bottom plug 3.

[0020] The ice bath pot 2 includes a pot bottom 2.1, a pot wall 2.2, a pot rim 2.3 and a connecting pipe 2.5; the bottom of the ice bath pot 2 is a circular pot bottom 2.1, and a connecting pipe 2.5 is provided at the upper center position of the pot bottom 2.1 to protrude upward, and the connecting pipe 2.5 is connected to the interior of the external ice bath pot 2; the connecting pipe 2.5 can be sealed and inserted into the lower part of the vibration transmission tube 1.3; a cylindrical pot wall 2.2 is provided at the upper part of the edge of the pot bottom 2.1, and an outward-inclined pot rim 2.3 is provided at the upper edge of the pot wall 2.2; when the compound cup 1 is connected to the ice bath pot 2, the upper part of the pot rim 2.3 is sealed with the lower part of the cup rim 1.2; the space between the ice bath pot 2 and the compound cup 1 is used to place iced water; the upper part of the pot wall 2.2 is provided with a pressure equalization hole 2.4, which is used to balance the internal and external atmospheric pressures when the ice melts.

[0021] The bottom plug 3 includes a plug head 3.1, a limiting disk 3.2, a plug rod 3.3 and a lifting ring 3.4; the lower part of the bottom plug 3 is a cylindrical plug head 3.1, which is inserted into the connecting tube 2.5 and sealed with each other; a circular limiting disk 3.2 is provided on the upper part of the plug head 3.1; the diameter of the limiting disk 3.2 is larger than the diameter of the plug head 3.1, but smaller than the inner diameter of the vibration transmission tube 1.3; the outer edge of the limiting disk 3.2 is stuck on the top of the connecting tube 2.5; the upper part of the limiting disk 3.2 is provided with a plug rod 3.3, and the top of the plug rod 3.3 is provided with a lifting ring 3.4.

[0022] The crucible bottom 2.1 and pot wall 2.2 are made of insulating material. The composite wall 1.1 is made of metal to facilitate heat conduction. The vibration transmission tube 1.3 is also made of metal to facilitate ultrasonic transmission. When the plug 3.1 is inserted into the connecting tube 2.5, the lifting ring 3.4 is higher than the upper portion of the tube rim 1.4. During the crystallization process, the composite is placed in an ultrasonic cleaning machine.

[0023] Specific usage: First, place silicon carbide powder into a composite cup (1) and add distilled water. Place the composite cup (1) in an ultrasonic cleaner and ultrasonicate to fully disperse the silicon carbide powder. Then, add a certain amount of melamine. Place the composite cup in a water bath, heat to dissolve the melamine, and continuously shake until the melamine is fully dissolved. Insert the bottom plug (3) into the connecting tube (2.5). Fill an ice bath (2) with ice water. Then, place the composite cup (1) in the ice bath (2), insert the bottom plug (3) into the vibration tube (1.3), and connect the connecting tube (2.5) to the vibration tube (1.3). Place the composite cup in an ultrasonic cleaner and remove the bottom plug (3) by holding the lifting ring (3.4). During crystallization, intermittently operate ultrasonic waves to obtain smaller crystals of the silicon carbide and melamine composite. After crystallization, separate the composite cup (1) from the water bath (2) and filter the composite within the composite cup (1) for later use.

[0024] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, such as the connection mode can adopt the mode other than the connection column, etc. Any skilled person in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A crystallization composite device for SiC and melamine ultrasonic crystallization, characterized in that: The compounder comprises a compound cup (1), an ice bath pot (2), and a bottom plug (3); the compound cup (1) is inserted into the inner bottom of the ice bath pot (2); and the bottom plug (3) is inserted into the bottom of the ice bath pot (2); The composite cup (1) is composed of a composite wall (1.1), a cup rim (1.2), a vibration transmission tube (1.3) and a tube rim (1.4); the main body of the composite cup (1) is the composite wall (1.1), and the composite wall (1.1) is in the shape of a bowl with a larger top and a smaller bottom; the upper edge of the composite wall (1.1) is provided with a circular cup rim (1.2) inclined outward; the bottom of the composite wall (1.1) is provided with a cylindrical vibration transmission tube (1.3); the vibration transmission tube (1.3) is connected from top to bottom, and the top of the vibration transmission tube is provided with an outward inclined tube rim (1.4) to facilitate the insertion of the bottom plug (3); The ice bath pot (2) comprises a pot bottom (2.1), a pot wall (2.2), a pot edge (2.3) and a connecting pipe (2.5); the bottom of the ice bath pot (2) is a circular pot bottom (2.1), a connecting pipe (2.5) is provided at the upper center of the pot bottom (2.1) and protrudes upward, and the connecting pipe (2.5) is connected to the interior of the external ice bath pot (2); the connecting pipe (2.5) can be sealed and inserted into the lower part of the vibration transmission tube (1.3); a cylindrical tube is provided at the upper edge of the pot bottom (2.1) The pot wall (2.2) is shaped like a pot, and an outwardly inclined pot edge (2.3) is provided at the upper edge of the pot wall (2.2); when the composite cup (1) is connected to the ice bath pot (2), the upper part of the pot edge (2.3) is sealed with the lower part of the cup edge (1.2); the space between the ice bath pot (2) and the composite cup (1) is used to place iced water; a pressure equalization hole (2.4) is provided on the upper part of the pot wall (2.2); when the ice melts, the pressure equalization hole (2.4) is used to balance the internal and external atmospheric pressures; The bottom plug (3) comprises a plug head (3.1), a limiting plate (3.2), a plug rod (3.3) and a lifting ring (3.4); the lower part of the bottom plug (3) is a cylindrical plug head (3.1), which is inserted into the connecting pipe (2.5) and sealed with each other; a circular limiting plate (3.2) is provided on the upper part of the plug head (3.1); the diameter of the limiting plate (3.2) is larger than the diameter of the plug head (3.1) but smaller than the inner diameter of the vibration transmission pipe (1.3); the outer edge of the limiting plate (3.2) is clamped on the top of the connecting pipe (2.5); the plug rod (3.3) is provided on the upper part of the limiting plate (3.2), and the lifting ring (3.4) is provided on the top of the plug rod (3.3); The composite wall (1.1) is made of metal to facilitate heat conduction; the vibration transmission tube (1.3) is made of metal to facilitate ultrasonic transmission.

2. The ultrasonic crystallization composite device for SiC and melamine according to claim 1, characterized in that: The pot bottom (2.1) and the pot wall (2.2) are made of heat-insulating materials.

3. The ultrasonic crystallization composite device for SiC and melamine according to claim 1, characterized in that: When the plug (3.1) is inserted into the connecting pipe (2.5), the height of the lifting ring (3.4) is higher than the upper part of the pipe edge (1.4).

4. The ultrasonic crystallization composite device for SiC and melamine according to claim 1, characterized in that: During the crystallization process, the composite device was placed in an ultrasonic cleaning machine.

Images