Fluidized bed for the production of carbon-silicon composites

Abstract

The utility model relates to a kind of fluidized bed for carbon-silicon composite material preparation, including fluidized bed body, the lower part of the outer surface of fluidized bed body is fixedly connected with fixed frame, the lower end of the fixed frame is fixedly connected with support leg in four corners, common fixedly connected with bottom plate between two support legs of horizontal direction, the upper end of the bottom plate is fixedly connected with connecting device, the upper end of the middle part of fluidized bed body is fixedly connected with adding pipe, the inner wall middle part of fluidized bed body is fixedly connected with flow guide component.The utility model relates to a kind of fluidized bed for carbon-silicon composite material preparation, and even pressurized fluidization is realized by connecting device, material path is optimized by flow guide component, the problem of uneven airflow and poor versatility of traditional equipment is solved, and carbon-silicon composite material mixing uniformity, equipment applicability and production efficiency are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of material preparation equipment technology, and in particular to a fluidized bed for preparing carbon-silicon composite materials. Background Technology

[0002] Carbon-silicon composites, due to their superior properties such as high strength, high temperature resistance, and corrosion resistance, are widely used in aerospace, automotive, and new energy fields. Fluidized bed technology, with its advantages of efficient mass and heat transfer and continuous production, has become a common method for the preparation of carbon-silicon composites. During the operation of fluidized bed equipment, materials are fluidized by gas to achieve thorough mixing and reaction. However, existing fluidized beds for the preparation of carbon-silicon composites still have many shortcomings. On the one hand, the airflow distribution in traditional fluidized beds lacks effective control, leading to uneven material fluidization and easy agglomeration or local accumulation, which seriously affects the uniformity of carbon-silicon raw material mixing and reduces the quality stability of composite materials. On the other hand, most fluidized bed equipment has a simple airflow dynamic structure, making it difficult to flexibly adjust the airflow pressure and velocity according to different process requirements. This results in poor adaptability of the equipment to raw materials with different formulations and particle sizes, limiting production efficiency and product performance improvement, and increasing production costs and technical difficulty. Therefore, it is necessary to design a fluidized bed for the preparation of carbon-silicon composites to solve the above problems. Utility Model Content

[0003] The main objective of this invention is to provide a fluidized bed for preparing carbon-silicon composite materials, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A fluidized bed for preparing carbon-silicon composite materials includes a fluidized bed body. A fixing frame is fixedly connected to the lower part of the outer surface of the fluidized bed body. Support legs are fixedly connected to the four corners of the lower end of the fixing frame. A base plate is fixedly connected between two of the support legs laterally. A connecting device is fixedly connected to the upper end of the base plate. An exhaust pipe is provided on the right side of the outer surface of the fluidized bed body. An air inlet pipe is fixedly connected to the left side of the outer surface of the fluidized bed body. An addition pipe is inserted and fixedly connected to the middle of the upper end of the fluidized bed body. A disc sprayer is fixedly connected to the bottom of the addition pipe. Switch valves are provided on the outer surfaces of the addition pipe, the air inlet pipe, and the exhaust pipe. A flow guiding component is fixedly connected to the middle of the inner wall of the fluidized bed body.

[0005] Preferably, the connecting device includes a centrifugal fan device, the output end of which is fixedly connected to a bend pipe, the outer surface of which is provided with a booster pump, the other end of which is fixedly connected to a conical barrel, the upper end of which is fixedly connected to a plurality of dispersed conical air blowing cylinders, and the bottom of which is fixedly connected to the upper right part of the base plate.

[0006] Preferably, the flow guiding component includes a hollow circular flow guiding plate, the upper end of which is provided with multiple obliquely shaped flow guiding grooves, and the hollow circular flow guiding plate is fixedly connected to the middle of the inner wall of the fluidized bed body.

[0007] Preferably, the fixing frame is fixed around the lower part of the outer surface of the fluidized bed body, and the four supporting legs are fixed in a rectangular distribution at the four corners of the lower end of the fixing frame.

[0008] Preferably, the plurality of the oblique-cut guide grooves are radially and evenly distributed on the upper end face of the hollow circular guide plate with the center of the plate as the center.

[0009] Preferably, the booster pump is fixedly sleeved at the middle position of the outer surface of the bend, and the input and output ends of the booster pump are connected to the internal channel of the bend, and the airflow boosting and transmission is realized through the connection between the booster pump and the bend.

[0010] Preferably, the plurality of the dispersed conical air-blowing cylinders are arranged in a ring array and fixed on the upper end face of the conical barrel, and the plurality of dispersed conical air-blowing cylinders are the same as the interior of the conical barrel.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, by setting up connecting devices, flow guiding components, booster pumps, and other components, and through the cooperative relationship between centrifugal fan equipment, bends, booster pumps, conical barrels, and dispersing conical air blowing cylinders, enables the dispersing conical air blowing cylinders to uniformly disperse and fluidize the raw materials entering the fluidized bed body through pressurized airflow. This achieves the effect of the device being able to fully mix the screened carbon silicon raw materials through stable and uniform airflow. Addressing the problems of uneven airflow distribution and insufficient raw material mixing in the background technology, the dispersing conical air blowing cylinders are arranged in a ring array on the conical barrel. With the booster pump pressurizing the airflow, the airflow is uniformly dispersed into the fluidized bed, avoiding the formation of local dead zones, ensuring the uniformity of raw material mixing, and improving the quality stability of composite materials.

[0012] 2. This utility model, through the cooperation of hollow circular guide plates, oblique-cut guide channels, and booster pumps, allows the radially distributed oblique-cut guide channels on the hollow circular guide plates to guide airflow and raw materials. The booster pump can flexibly adjust the airflow pressure, enabling this device to adaptively fluidize carbon silicon raw materials of different particle sizes and densities through adjustable airflow pressure and optimized material flow paths. This effectively solves the problem of poor versatility of traditional equipment and significantly improves the adaptability of the equipment to different process requirements. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a partial cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the connecting device structure of this utility model; Figure 4 This is a schematic diagram of the flow guiding component structure for this practical application.

[0014] In the diagram: 1. Fluidized bed body; 2. Addition pipe; 3. Switch valve; 4. Air inlet pipe; 5. Fixing frame; 6. Support leg; 7. Base plate; 8. Connecting device; 9. Exhaust pipe; 10. Disc spray component; 11. Flow guiding assembly; 81. Centrifugal fan equipment; 82. Bend; 83. Booster pump; 84. Conical barrel; 85. Dispersing conical air blower; 111. Hollow circular guide plate; 112. Beveled flow guide groove. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] Please see Figure 1-4 This utility model provides a technical solution: A fluidized bed for preparing carbon-silicon composite materials includes a fluidized bed body 1. A fixing frame 5 is fixedly connected to the lower part of the outer surface of the fluidized bed body 1. Support feet 6 are fixedly connected to the four corners of the lower end of the fixing frame 5. A base plate 7 is fixedly connected between two horizontal support feet 6. A connecting device 8 is fixedly connected to the upper end of the base plate 7. An exhaust pipe 9 is provided on the right side of the outer surface of the fluidized bed body 1. An air inlet pipe 4 is fixedly connected to the left side of the outer surface of the fluidized bed body 1. An addition pipe 2 is inserted and fixedly connected to the middle of the upper end of the fluidized bed body 1. A disc sprayer 10 is fixedly connected to the bottom of the addition pipe 2. Switch valves 3 are provided on the outer surface of the addition pipe 2, the outer surface of the air inlet pipe 4, and the outer surface of the exhaust pipe 9. A flow guiding component 11 is fixedly connected to the middle of the inner wall of the fluidized bed body 1.

[0017] See Figure 3 The connecting device 8 includes a centrifugal fan device 81. The output end of the centrifugal fan device 81 is fixedly connected to a bend 82. A booster pump 83 is installed on the outer surface of the bend 82. The other end of the bend 82 is fixedly connected to a conical barrel 84. Multiple dispersed conical air blowing cylinders 85 are fixedly connected to the upper end of the conical barrel 84. The bottom of the centrifugal fan device 81 is fixedly connected to the upper right part of the base plate 7. The booster pump 83 is fixedly sleeved in the middle of the outer surface of the bend 82. The input and output ends of the booster pump 83 are connected to the internal channel of the bend 82. The airflow is boosted and transmitted through the connection between the booster pump 83 and the bend 82. Multiple dispersed conical air blowing cylinders 85 are arranged in a ring array and fixed on the upper end face of the conical barrel 84. The multiple dispersed conical air blowing cylinders 85 are the same as the inside of the conical barrel 84. See Figure 4 The flow guiding component 11 includes a hollow circular flow guiding plate 111. The upper end of the hollow circular flow guiding plate 111 is provided with a plurality of obliquely cut flow guiding grooves 112. The hollow circular flow guiding plate 111 is fixedly connected to the middle of the inner wall of the fluidized bed body 1. The plurality of obliquely cut flow guiding grooves 112 are radially and evenly distributed on its upper end face with the center of the hollow circular flow guiding plate 111 as the center. See Figure 1 The fixing frame 5 is fixed around the lower part of the outer surface of the fluidized bed body 1, and the four supporting feet 6 are arranged in a rectangle and fixed at the four corners of the lower end of the fixing frame 5.

[0018] Through the above scheme: the airflow output from the centrifugal fan 81 in the connecting device 8 is transmitted through the bend 82. The booster pump 83 on the outer surface of the bend 82 pressurizes the airflow and sends it into the conical barrel 84. Then, it is dispersed and blown out by the dispersing conical air blowers 85 arranged in a ring array at the upper end of the conical barrel 84, so that the raw materials in the fluidized bed body 1 are fluidized. The hollow circular guide plate 111 of the flow guiding component 11 has radially evenly distributed oblique-cut guide grooves 112 that can guide the airflow and raw materials, promoting their full mixing reaction. The fixing frame 5 is fixed around the lower part of the fluidized bed body 1, and the four rectangular support feet 6 are stably supported by the base plate 7. This scheme, through the airflow pressurization and dispersion structure of the connecting device 8, can enhance the fluidization effect of the raw materials and improve the mixing uniformity. The flow guiding design of the flow guiding component 11 further optimizes the material flow path in the reaction process and improves the reaction efficiency. Meanwhile, a stable support structure ensures the stability of the device during operation. Through the above scheme: the raw material enters the fluidized bed body 1 through the addition pipe 2 and the disc sprayer 10; air enters through the air inlet pipe 4; the centrifugal fan 81 pressurizes the air through the bend pipe 82 and the booster pump 83 and then delivers it to the conical barrel 84; and then it is blown out by the annular array of dispersing conical air blowers 85, which fluidizes the raw material. The hollow circular guide plate 111 and its radially distributed oblique-cut guide grooves 112 promote the mixing reaction of the raw material; the exhaust gas is discharged through the exhaust pipe 9; the fixed frame 5, the support feet 6 and the base plate 7 provide stable support. This scheme improves the fluidization and mixing effect of the raw material through the dispersing conical air blower 85 and the oblique-cut guide grooves 112, enhances the airflow pressure through the booster pump 83, and improves the stability of the device through the rectangular distribution of the support feet 6, thereby improving the preparation quality and efficiency of carbon silicon composite materials.

[0019] It should be noted that this utility model is a fluidized bed for the preparation of carbon-silicon composite materials. When the fluidized bed for the preparation of carbon-silicon composite materials is working, the raw material enters the fluidized bed body 1 through the addition pipe 2 and the bottom disc spraying component 10. The switch valve 3 on the outer surface of the addition pipe 2 can control the addition of raw materials. External air enters through the air inlet pipe 4 and the switch valve 3. At the same time, the centrifugal fan device 81 on the bottom plate 7 pressurizes the air through the bend pipe 82 and the booster pump 83 on the outer surface of the bend pipe 82, and delivers the air to the conical barrel 84. Then, it is dispersed and blown out by multiple dispersed conical air blowers 85, so that the raw material is in a fluidized state in the fluidized bed body 1. During the fluidization process, the raw material is guided by the hollow circular guide plate 111 in the middle of the inner wall of the fluidized bed body 1 and the radially distributed oblique section guide groove 112 at the upper end, which promotes the full mixing and reaction of the raw material. The exhaust gas after the reaction is discharged through the exhaust pipe 9 and the corresponding switch valve 3. The fixed frame 5, the support foot 6 and the bottom plate 7 provide stable support for the entire device.

[0020] 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 illustrative of the principles of this 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fluidized bed for preparing carbon-silicon composite materials, comprising a fluidized bed body (1), characterized in that: A fixed frame (5) is fixedly connected to the lower part of the outer surface of the fluidized bed body (1). Support feet (6) are fixedly connected to the four corners of the lower end of the fixed frame (5). A base plate (7) is fixedly connected between the two support feet (6) in the horizontal direction. A connecting device (8) is fixedly connected to the upper end of the base plate (7). An exhaust pipe (9) is provided on the right side of the outer surface of the fluidized bed body (1). An air inlet pipe (4) is fixedly connected to the left side of the outer surface of the fluidized bed body (1). An addition pipe (2) is inserted and fixedly connected to the middle of the upper end of the fluidized bed body (1). A disc sprayer (10) is fixedly connected to the bottom of the addition pipe (2). Switch valves (3) are provided on the outer surface of the addition pipe (2), the outer surface of the air inlet pipe (4), and the outer surface of the exhaust pipe (9). A flow guiding component (11) is fixedly connected to the middle of the inner wall of the fluidized bed body (1).

2. The fluidized bed for preparing carbon-silicon composite materials according to claim 1, characterized in that: The connecting device (8) includes a centrifugal fan device (81), the output end of which is fixedly connected to a bend (82), the outer surface of which is provided with a booster pump (83), the other end of which is fixedly connected to a conical barrel (84), the upper end of which is fixedly connected to multiple dispersed conical air blowing cylinders (85), and the bottom of which is fixedly connected to the upper right side of the base plate (7).

3. The fluidized bed for preparing carbon-silicon composite materials according to claim 1, characterized in that: The flow guiding component (11) includes a hollow circular flow guiding plate (111), and the upper end of the hollow circular flow guiding plate (111) is provided with a plurality of obliquely cut flow guiding grooves (112). The hollow circular flow guiding plate (111) is fixedly connected to the middle of the inner wall of the fluidized bed body (1).

4. The fluidized bed for preparing carbon-silicon composite materials according to claim 1, characterized in that: The fixing frame (5) is fixed around the lower part of the outer surface of the fluidized bed body (1), and the four supporting feet (6) are fixed in a rectangular distribution at the four corners of the lower end of the fixing frame (5).

5. The fluidized bed for preparing carbon-silicon composite materials according to claim 3, characterized in that: Multiple oblique-cut guide grooves (112) are radially and evenly distributed on the upper end face of the hollow circular guide plate (111) with the center as the center.

6. The fluidized bed for preparing carbon-silicon composite materials according to claim 2, characterized in that: The booster pump (83) is fixedly sleeved on the middle of the outer surface of the bend (82). The input and output ends of the booster pump (83) are connected to the internal channel of the bend (82), and the airflow boosting transmission is realized through the connection between the booster pump (83) and the bend (82).

7. The fluidized bed for preparing carbon-silicon composite materials according to claim 2, characterized in that: Multiple dispersed conical air-blowing cylinders (85) are arranged in a ring array and fixed on the upper end face of the conical barrel (84), and the multiple dispersed conical air-blowing cylinders (85) are the same as the interior of the conical barrel (84).

Images