A heat treatment device for green silicon carbide micro powder

Abstract

This utility model relates to the field of powder processing technology, specifically a heat treatment device for green silicon carbide micropowder. It includes a furnace body with a furnace chamber and a furnace cover. A placement cage is placed inside the furnace chamber, and the placement cage includes a support plate and a crucible. A hook is provided on the placement cage. A cooling jacket is installed above the furnace body, and a fan is connected to the cooling jacket. Several through holes are formed on the inner wall of the cooling jacket, allowing outside air to pass sequentially through the fan, the cooling jacket, and the through holes before being blown towards the center of the cooling jacket. This heat treatment device for green silicon carbide micropowder, through the cooling jacket, eliminates the need for additional transfer of the green silicon carbide micropowder after heat treatment. The placement cage can be directly placed inside the cooling jacket via the hook, and the crucible is cooled by the fan. This simplifies the cooling process after heat treatment of the green silicon carbide micropowder, reduces the number of material transfers, and lowers the risk of impurity contamination and spillage.

Description

Technical Field

[0001] This utility model relates to the field of powder processing technology, specifically to a heat treatment device for green silicon carbide micro powder. Background Technology

[0002] Green silicon carbide micropowder is an ultrafine particle produced from green silicon carbide through processes such as crushing and grinding. It exhibits high hardness and strong chemical stability, and is widely used in semiconductor manufacturing, precision grinding, and ceramic materials. Heat treatment is a crucial step in the production of green silicon carbide micropowder. By heating the powder under specific temperature and atmosphere conditions, its physicochemical properties can be effectively improved, such as optimizing crystal structure, increasing purity, and enhancing interparticle bonding. This further enhances the material properties of green silicon carbide micropowder, meeting the needs of various industries for high-performance abrasives and functional materials.

[0003] In the heat treatment process of green silicon carbide micro powder, traditional equipment usually only has heat treatment function, which means that the heat-treated green silicon carbide micro powder needs to be taken out of the furnace and then transferred to a cooling device for cooling. This multiple transfer method is prone to contamination by impurities during the transfer process, and the green silicon carbide micro powder may be spilled due to collisions and other factors. In view of this, we propose a heat treatment device for green silicon carbide micro powder. Utility Model Content

[0004] The purpose of this invention is to provide a heat treatment device for green silicon carbide micro powder to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A heat treatment device for green silicon carbide micro powder includes a furnace body with a furnace chamber. A furnace cover is rotatably connected to the top of the furnace body. A placement cage is placed inside the furnace chamber. The placement cage includes a horizontally arranged platform and a crucible placed on the platform for placing the green silicon carbide powder to be heat-treated. The placement cage is equipped with a hook. A cooling jacket for cooling the crucible is arranged above the furnace body. A fan is connected to the cooling jacket. Several through holes are opened on the inner wall of the cooling jacket. Outside air passes through the fan, the cooling jacket, and the through holes in sequence and blows towards the center of the cooling jacket. A protrusion is fixed at the top edge of the cooling jacket. A pair of hinge rods are hinged to the protrusion. A hanging rod is connected between the ends of the two hinge rods. The placement cage can be hung on the hanging rod by the hook.

[0007] Preferably, a fixing seat is provided at the outer edge of the top of the furnace body, and the end of the furnace cover protrudes horizontally and extends laterally into the fixing seat and is rotatably connected to the fixing seat through a rotating shaft.

[0008] This setting allows the furnace lid to open and close stably around the pivot, achieving the purpose of opening and closing the furnace lid.

[0009] Preferably, the top of the platform is provided with a curved cage frame, and the hook is fixed at the highest point of the cage frame;

[0010] This design allows for easy retrieval of the placement cage from the furnace using a hook with a tool.

[0011] Preferably, the crucible is placed on a support plate, and a pair of stop bars are fixed at the top edge of the support plate, with the crucible located in the space formed between the stop bars;

[0012] This setting prevents the crucible from moving inside the furnace, ensuring its stability during heat treatment.

[0013] Preferably, the bottom end of the raft is provided with several supporting legs, and the placement cage is erected inside the furnace by means of the supporting legs;

[0014] This setting keeps the crucible suspended and upright inside the furnace, which helps to ensure uniform heating of the crucible and improves the heat treatment effect.

[0015] Preferably, the cooling jacket has a hollow cylindrical structure, the cooling jacket includes a hollow cylindrical body and an annular cavity surrounding the body and inside the body, the outer surface of the cooling jacket is provided with an air inlet port, the fan is installed on the air inlet port, and the air inlet port, the annular cavity of the cooling jacket and the through hole are connected.

[0016] In this setup, a complete airflow channel is formed inside the cooling jacket, allowing outside air to be blown evenly onto the crucible, thereby cooling the crucible containing green silicon carbide micropowder.

[0017] Preferably, a fixing bracket is fixed to the outer surface of the cooling jacket, and the end of the fixing bracket is fixed to the top of the fixing base;

[0018] In this setup, the mounting bracket securely fixes the cooling jacket above the furnace body, ensuring the positional stability of the cooling jacket during operation.

[0019] Preferably, a notch is provided on both the left and right sides of the top of the boss, and the first end of the hinge rod is hinged to the groove wall of the notch. The bottom of the notch is inclined and the inclined direction gradually rises towards the axis of the cooling sleeve. The inclined structure of the notch is used to provide a limit when the hinge rod rotates.

[0020] In this setup, the inclined plane limiting structure ensures that the hinge rod maintains a fixed angle after rotation, providing stable support for the hanging and placement cage.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This heat treatment device for green silicon carbide micro powder, by setting a cooling jacket above the furnace body and utilizing the cooperative design of the cooling jacket and the placement cage, allows the green silicon carbide micro powder to be directly hung on the hanging rod of the cooling jacket after heat treatment without additional transfer. The placement cage is then directly attached to the hanging rod of the cooling jacket by hooks, and the crucible containing the green silicon carbide micro powder is cooled by the blower through the through holes of the cooling jacket. This simplifies the cooling process after heat treatment of green silicon carbide micro powder, reduces the number of material transfers, and lowers the risk of impurity contamination and collision spillage. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram showing the state of the cage during cooling in this utility model;

[0025] Figure 3 This is a schematic diagram of the furnace body in this utility model;

[0026] Figure 4 This is a schematic diagram of the structure for placing the cage in this utility model;

[0027] Figure 5 This is a schematic diagram of the cooling jacket structure in this utility model;

[0028] Figure 6 This is a partial structural diagram of the cooling jacket in this utility model;

[0029] Figure 7 This is a schematic diagram of the hinge rod in this utility model;

[0030] The meanings of the labels in the diagram are as follows:

[0031] 100. Furnace body; 110. Furnace chamber; 120. Furnace cover; 130. Mounting base;

[0032] 200. Cage placement; 210. Platform; 211. Cage frame; 212. Hook; 213. Stop bar; 214. Support leg; 220. Crucible;

[0033] 300, Cooling jacket; 310, Air inlet port; 320, Through hole; 330, Fixing bracket; 340, Fan; 350, Thrust seat; 351, Abutment groove; 360, Hinge rod; 361, Hanging rod. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Please see Figures 1-7 A heat treatment device for green silicon carbide micro powder includes a furnace body 100, a furnace chamber 110 providing heat treatment space in the furnace body 100, a furnace cover 120 rotatably connected to the top of the furnace body 100, a placement cage 200 placed in the furnace chamber 110, the placement cage 200 including a horizontally arranged ramp 210 and a crucible 220 placed on the ramp 210 for placing the green silicon carbide powder to be heat treated, and a hook 212 provided on the placement cage 200. The combination design of the placement cage 200, ramp 210 and crucible 220 facilitates the placement and retrieval of green silicon carbide micro powder.

[0036] like Figures 1-3 As shown in the present invention, a fixing seat 130 is provided at the outer edge of the top of the furnace body 100. The fixing seat 130 has a U-shaped structure that flips laterally. The end of the furnace cover 120 protrudes horizontally and extends laterally into the fixing seat 130 and is rotatably connected to the fixing seat 130 through a rotating shaft. The rotatable connection structure between the fixing seat 130 and the furnace cover 120 allows the furnace cover to be opened and closed around the rotating shaft, making it convenient for operators to open and close the furnace cover.

[0037] like Figure 4 As shown, specifically, the top of the support plate 210 is provided with a curved cage frame 211, and a hook 212 is fixed at the highest point of the cage frame 211. Workers can easily remove the placement cage 200 from the furnace chamber 110 using tools from the hook 212. The crucible 220 is placed on the support plate 210, and a pair of baffles 213 are fixed to the top edge of the support plate 210. The crucible 220 is located within the space formed between the baffles 213, which prevent the crucible from moving within the furnace chamber, ensuring the stability of the crucible's placement. The bottom of the support plate 210 is provided with several support legs 214. The placement cage 200 is erected inside the furnace chamber 110 by the support legs 214. Supported by the support legs 214, the support plate 210 supports the crucible 220 in a suspended state within the furnace chamber 110, allowing the crucible 220 to be heated evenly.

[0038] like Figure 1 , Figure 3 , Figure 5 and Figure 6As shown, further, a cooling jacket 300 for cooling the crucible 220 is provided above the furnace body 100. The cooling jacket 300 has a hollow cylindrical structure and includes a hollow cylindrical body and an annular cavity surrounding the body and inside the body. A fan 340 is connected to the cooling jacket 300. Several through holes 320 are opened on the inner wall of the cooling jacket 300. An air inlet port 310 is provided on the outer surface of the cooling jacket 300. The fan 340 is installed on the air inlet port 310. The air inlet port 310, the annular cavity of the cooling jacket 300 and the through holes 320 are connected, so that the outside air passes through the fan 340, the cooling jacket 300 and the through holes 320 in sequence and is blown towards the center of the annular cavity of the cooling jacket 300. When the placement cage 200 is lifted upwards and the crucible 220 is placed inside the cooling jacket 300, under the operation of the fan 340, outside air is sent into the annular cavity of the cooling jacket and blown evenly onto the crucible 220 through the through holes, thereby cooling the green silicon carbide micro powder inside the crucible 220 and realizing the function of direct cooling after heat treatment.

[0039] like Figure 5 and Figure 6 As shown, a fixing bracket 330 is fixed to the outer surface of the cooling sleeve 300. The end of the fixing bracket 330 is fixed to the top of the fixing seat 130. The fixing bracket 330 fixes the cooling sleeve to the fixing seat, ensuring the stability of the cooling sleeve position. A protrusion 350 is fixed to the top edge of the cooling sleeve 300. A notch 351 is provided on both the left and right sides of the top of the protrusion 350. The head end of the hinge rod 360 is hinged to the groove wall of the notch 351. The bottom of the notch 351 is inclined and gradually rises towards the axis of the cooling sleeve 300. The inclined structure of the notch 351 is used to provide a limit when the hinge rod 360 rotates. When the hinge rod 360 is rotated so that it rotates towards the axis of the cooling sleeve 300, the head end of the hinge rod 360 will eventually abut against the bottom of the notch 351. At this time, the end of the hinge rod 360 is inclined upward towards the axis of the cooling sleeve 300.

[0040] like Figure 5 and Figure 7 As shown, it is worth noting that a pair of hinge rods 360 are hinged to the boss 350, and a hanging rod 361 is connected between the ends of the two hinge rods 360. By means of the hanging rod 361, when the hinge rods 360 are rotated so that the ends of the hinge rods 360 are inclined upward toward the axis of the cooling sleeve 300, the placement cage 200 lifted upward from the furnace 110 can be hung on the hanging rod 361 by the hook 212, so that the placement cage 200 is hung inside the cooling sleeve 300, so that the cooling sleeve 300 continuously cools the crucible 220.

[0041] It is worth noting that the fan 340 involved in this utility model is existing conventional technology, and will not be described in detail here.

[0042] In this embodiment, the heat treatment apparatus for green silicon carbide micropowder is used as follows: First, the operator moves the furnace cover 120 laterally to rotate it around the fixed base 130, thus opening the furnace cover 120. At this time, the crucible 220 containing the green silicon carbide micropowder is placed on the mounting plate 210 of the placement cage 200. The placement cage 200 is then sent into the furnace chamber 110 using the hook 212. Subsequently, the furnace cover 120 is closed, and the furnace body 100 is started, allowing the furnace chamber 110 to heat treat the green silicon carbide micropowder. Then, after the heat treatment is completed, the furnace cover 120 is opened, and the hinge rod 360 is rotated so that its end is angled upward toward the axis of the cooling sleeve 300. At this time, a tool can be used to hook the hook 212 to lift the placement cage 200 from the furnace chamber. The furnace chamber 110 is lifted upwards into the cooling jacket 300, and the hook 212 is attached to the hanging rod 361, so that the placement cage 200 and crucible 220 are placed inside the cooling jacket 300. Then, the blower 340 is started to work. At this time, the outside air enters the annular cavity of the cooling jacket 300 through the air inlet 310 and is then blown evenly onto the crucible 220 through the through hole 320 to cool the green silicon carbide micro powder. Finally, after the cooling process is completed, the placement cage 200 is removed from the hanging rod 361, the placement cage 200 is taken out of the furnace chamber 110, and the cooled crucible 220 is taken out from the mounting plate 210. The green silicon carbide micro powder can be taken out by opening the crucible 220.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heat treatment apparatus for green silicon carbide micro powder, comprising a furnace body (100), wherein a furnace chamber (110) is provided in the furnace body (100), and a furnace cover (120) is rotatably connected to the top of the furnace body (100), characterized in that: A placement cage (200) is placed inside the furnace chamber (110). The placement cage (200) includes a horizontally arranged ramp (210) and a crucible (220) placed on the ramp (210) for holding the green silicon carbide powder to be heat-treated. The placement cage (200) is provided with hooks (212). A cooling jacket (300) for cooling the crucible (220) is provided above the furnace body (100). A fan (340) is connected to the cooling jacket (300). The inner wall of the cooling jacket (300) is opened. The cooling sleeve (300) has several through holes (320). Outside air passes through the fan (340), the cooling sleeve (300) and the through holes (320) in sequence and is blown toward the center of the cooling sleeve (300). A boss (350) is fixed at the top edge of the cooling sleeve (300). A pair of hinge rods (360) are hinged to the boss (350). A hanging rod (361) is connected between the ends of the two hinge rods (360). The placement cage (200) can be hung on the hanging rod (361) by the hook (212).

2. The heat treatment apparatus for green silicon carbide micro powder according to claim 1, characterized in that: A fixing seat (130) is provided at the outer edge of the top of the furnace body (100). The end of the furnace cover (120) protrudes horizontally and extends laterally into the fixing seat (130) and is rotatably connected to the fixing seat (130) through a rotating shaft.

3. The heat treatment apparatus for green silicon carbide micro powder according to claim 1, characterized in that: The top of the platform (210) is provided with a curved cage frame (211), and the hook (212) is fixed at the highest point of the cage frame (211).

4. The heat treatment apparatus for green silicon carbide micro powder according to claim 1, characterized in that: The crucible (220) is placed on the mounting plate (210), and a pair of stop bars (213) are fixed at the top edge of the mounting plate (210). The crucible (220) is located in the space formed between the stop bars (213).

5. The heat treatment apparatus for green silicon carbide micro powder according to claim 1, characterized in that: The bottom end of the mounting plate (210) is provided with several supporting legs (214), and the placement cage (200) is erected inside the furnace (110) through the supporting legs (214).

6. The heat treatment apparatus for green silicon carbide micro powder according to claim 1, characterized in that: The cooling sleeve (300) has a hollow cylindrical structure. The cooling sleeve (300) includes a hollow cylindrical body and an annular cavity surrounding the body and inside the body. An air inlet port (310) is provided on the outer surface of the cooling sleeve (300). The fan (340) is installed on the air inlet port (310). The air inlet port (310), the annular cavity of the cooling sleeve (300) and the through hole (320) are in communication.

7. The heat treatment apparatus for green silicon carbide micro powder according to claim 2, characterized in that: A fixing bracket (330) is fixed on the outer surface of the cooling jacket (300), and the end of the fixing bracket (330) is fixed to the top of the fixing seat (130).

8. The heat treatment apparatus for green silicon carbide micro powder according to claim 1, characterized in that: The top left and right sides of the boss (350) are provided with abutment grooves (351). The first end of the hinge rod (360) is hinged to the groove wall of the abutment groove (351). The bottom of the abutment groove (351) is inclined and the inclined direction gradually rises towards the axis of the cooling sleeve (300). The inclined structure of the abutment groove (351) is used to provide a limit when the hinge rod (360) rotates.

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