Powder material fluidization control device

Abstract

The utility model relates to the technical field of powder material fluidization conveying, in particular to a powder material fluidization control device. The flow control chamber is fixedly connected to the outer wall of the material fluidizing chamber, a material through hole and an airflow evacuation hole are formed in the side wall, covered with the flow control chamber, of the material fluidizing chamber, the material through hole is formed in the lower portion of the side wall of the material fluidizing chamber in the height direction of the material fluidizing chamber, and the airflow evacuation hole is formed in the upper portion of the side wall of the material fluidizing chamber. A material baffle is fixedly connected to the driving shaft and shields the material through hole. Interference caused by a common channel of materials and airflow is effectively avoided, the process problem that powder materials are difficult to equally distribute into multiple parts is solved, the problems of poor timeliness and large workload caused by manual adjustment of flow of multiple parts of materials are avoided, blockage of the powder materials is effectively prevented, automatic control of equipment is facilitated, and production efficiency is improved. The working efficiency is improved, installation and maintenance are easy, the failure rate is low, and use is safe and reliable.

Description

Technical Field

[0001] This utility model relates to the field of fluidized conveying technology for powder materials, specifically a fluidized control device for powder materials. Background Technology

[0002] In the electrolytic aluminum industry, alumina powder is the main raw material. Since alumina powder is a powdery material, it can be fluidized using gas. Therefore, chute conveying is commonly used in the alumina powder transportation process. Before being transported to multiple reactors via the chute, the alumina powder in the chute needs to be evenly distributed into multiple portions by a control device.

[0003] Existing electrolytic aluminum conveying processes often employ flow-limiting or throttling structures to manually distribute materials. This method is characterized by airflow and material sharing a common channel, which easily leads to mutual interference. Furthermore, manually adjusting the material input of multiple reactors results in poor timeliness and a large workload, leading to poor stability of the electrolytic aluminum purification process. This affects the efficiency of fluoride recovery by the purification dust collector and poses a high risk of exceeding emission standards. Utility Model Content

[0004] The purpose of this invention is to provide a powder material fluidization control device that effectively avoids interference caused by the material and airflow sharing the same channel, solves the process problem of difficulty in evenly distributing the material in the chute into multiple portions, and avoids the problems of poor timeliness and high labor intensity caused by manually adjusting the flow rate of multiple portions of material.

[0005] To achieve the aforementioned technical effects, this utility model provides a powder material fluidization control device comprising a material fluidization chamber, a fluidizing gas source chamber, a boiling bed, and a flow control chamber. The bottom surface of the material fluidization chamber is open, and the cross-sectional shape of the material fluidization chamber is rectangular. The top surface of the fluidizing gas source chamber is open and is fixedly connected to the bottom of the material fluidization chamber. The top opening of the fluidizing gas source chamber communicates with the bottom opening of the material fluidization chamber. The boiling bed is fixedly connected between the top opening of the fluidizing gas source chamber and the bottom opening of the material fluidization chamber. A gas source inlet pipe is fixedly connected to the bottom surface of the fluidizing gas source chamber and communicates with the fluidizing gas source chamber. The flow control chamber is fixedly connected to... A flow control chamber is located in the middle of the material fluidization chamber, attached to the outer wall of the material fluidization chamber along the length of the air source inlet pipe. The flow control chamber is a rectangular chamber, and a material output pipe is fixedly connected to the bottom surface of the flow control chamber. The material output pipe communicates with the flow control chamber. Material through holes and airflow evacuation holes are provided on the side wall of the material fluidization chamber covered by the flow control chamber. The material through holes are located at the lower part of the side wall of the material fluidization chamber along the height direction, and the airflow evacuation holes are located at the upper part of the side wall of the material fluidization chamber along the height direction. A drive shaft is rotatably connected inside the flow control chamber, and a material baffle is fixedly connected to the drive shaft. The material baffle blocks the material through holes.

[0006] Furthermore, the material through hole is a semi-circular through hole, and the lower part of the material baffle is a semi-circular baffle, with the semi-circular area of ​​the lower part of the material baffle being larger than the semi-circular area of ​​the material through hole.

[0007] Furthermore, the airflow evacuation hole is a rectangular through hole.

[0008] Furthermore, a servo motor is fixedly connected to the outer wall of the flow control chamber, which is parallel to the material fluidization chamber. The output shaft of the servo motor passes through the outer wall of the flow control chamber and extends into the interior of the flow control chamber. The end of the servo motor's output shaft that passes into the interior of the flow control chamber is fixedly connected to a drive shaft via a coupling.

[0009] Furthermore, the material fluidization chamber covered by the flow control chamber has a shaft hole on its side wall, and a bearing seat is fixedly connected in the shaft hole. The shaft hole is located between the material through hole and the airflow evacuation hole. The bearing seat extends into the material fluidization chamber and has a bearing hole on it. The bearing hole is a blind hole. One end of the drive shaft away from the output shaft of the servo motor is inserted into the bearing hole. A bearing is connected between the bearing hole and the drive shaft. A bearing cover is connected to the bearing hole and is pressed onto the bearing.

[0010] Furthermore, the fluidized bed material is canvas.

[0011] The beneficial effects of this utility model are as follows: The flow control chamber is fixedly connected to the outer wall of the material fluidizing chamber. The side wall of the material fluidizing chamber covered by the flow control chamber is provided with material through holes and airflow evacuation holes. The material through holes are located at the lower part of the side wall of the material fluidizing chamber along the height direction, and the airflow evacuation holes are located at the upper part of the side wall of the material fluidizing chamber along the height direction. A drive shaft is rotatably connected inside the flow control chamber, and a material baffle is fixedly connected to the drive shaft, which blocks the material through holes. This utility model effectively avoids interference caused by the material and airflow sharing a common channel, solves the process problem of powder materials being difficult to evenly distribute into multiple portions, avoids the problems of poor timeliness and high labor intensity caused by manually adjusting the flow rate of multiple portions of material, effectively prevents powder material blockage, facilitates automated control of the equipment, improves work efficiency, is easy to install and maintain, has a low failure rate, and is safe and reliable to use. Attached Figure Description

[0012] Figure 1 This is an isometric view of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of this utility model;

[0014] Figure 3 This utility model Figure 2 AA section view;

[0015] Figure 4 This utility model Figure 3 BB section view;

[0016] Figure 5 This is a partial structural cross-sectional view of the drive shaft and material baffle of this utility model;

[0017] Figure 6 This utility model Figure 5 The C-direction attempt.

[0018] In the diagram: 1. Material fluidization chamber; 2. Fluidized gas source chamber; 3. Boiling bed; 4. Flow control chamber; 5. Gas source inlet pipe; 6. Material outlet pipe; 7. Material through hole; 8. Airflow evacuation hole; 9. Material baffle; 10. Servo motor; 11. Drive shaft; 12. Shaft hole; 13. Bearing housing; 1301. Bearing hole; 14. Bearing cover. Detailed Implementation

[0019] like Figures 1-6 As shown, this utility model discloses a powder material fluidization control device, comprising a material fluidization chamber 1, a fluidizing gas source chamber 2, a boiling bed 3, and a flow control chamber 4. The bottom surface of the material fluidization chamber 1 is open, and the cross-sectional shape of the material fluidization chamber 1 is rectangular. The top surface of the fluidizing gas source chamber 2 is open and is fixedly connected to the bottom of the material fluidization chamber 1. The top opening of the fluidizing gas source chamber 2 communicates with the bottom opening of the material fluidization chamber 1. The boiling bed 3 is fixedly connected between the top opening of the fluidizing gas source chamber 2 and the bottom opening of the material fluidization chamber 1. The material of the boiling bed 3 is canvas. A gas source inlet pipe 5 is fixedly connected to the bottom surface of the fluidizing gas source chamber 2 and communicates with the fluidizing gas source chamber 2. The flow control chamber 4 is fixedly connected to the outer wall of the material fluidization chamber 1 and is located along the length of the gas source inlet pipe 5 within the material fluidization chamber 1. In the middle, the flow control chamber 4 is a rectangular chamber. A material output pipe 6 is fixedly connected to the bottom surface of the flow control chamber 4, and the material output pipe 6 communicates with the flow control chamber 4. The side wall of the material fluidization chamber 1 covered by the flow control chamber 4 is provided with a material through hole 7 and an airflow evacuation hole 8. The material through hole 7 is located at the lower part of the side wall of the material fluidization chamber 1 along the height direction of the material fluidization chamber 1, and the airflow evacuation hole 8 is located at the upper part of the side wall of the material fluidization chamber 1 along the height direction of the material fluidization chamber 1. A drive shaft 11 is rotatably connected inside the flow control chamber 4, and a material baffle 9 is fixedly connected to the drive shaft 11. The material baffle 9 blocks the material through hole 7. The material through hole 7 is a semi-circular through hole, and the lower part of the material baffle 9 is a semi-circular baffle. The semi-circular area of ​​the lower part of the material baffle 9 is larger than the semi-circular area of ​​the material through hole 7. The airflow evacuation hole 8 is a rectangular through hole.

[0020] In this invention, powdered materials are conveyed through a material fluidization chamber 1. Due to the nature of powdered material conveying, the lower part of the material fluidization chamber 1 contains powdered materials, while the upper part contains gas. Therefore, the material through-hole 7 is located below the airflow dispersion hole 8. The powdered materials enter the flow control chamber 4 through the material through-hole 7 and then pass through the material output pipe 6 into the reactor. The material baffle 9 acts as a shield for the material through-hole 7. By rotating the drive shaft 11, the material baffle 9 is rotated, thereby changing the shielding area of ​​the material baffle 9 on the material through-hole 7, thus controlling the flow rate of the powdered materials. The semi-circular through-hole shape of the material through-hole 7 and the material flow rate are controlled accordingly. The semi-circular shape of the baffle 9 is to provide space for the rotation of the material baffle 9, ensuring that the material baffle 9 can completely block or fully open the material through hole 7 when rotating inside the flow control chamber 4. If the shape of the material through hole 7 or the material baffle 9 is set to be circular, the internal size of the flow control chamber 4 needs to be increased to meet the rotation requirements of the material baffle 9 in order to fully block or fully open the material through hole 7. The airflow evacuation hole 8 is used as a pressure relief port to evacuate excess airflow. This utility model eliminates the flow interference caused by gas-solid mixing by using the airflow evacuation hole 8 and the material through hole 7 together, effectively preventing the powder material from clogging.

[0021] A servo motor 10 is fixedly connected to the outer wall of the flow control chamber 4, which is parallel to the material fluidization chamber 1. The output shaft of the servo motor 10 passes through the outer wall of the flow control chamber 4 and extends into the interior of the flow control chamber 4. One end of the output shaft of the servo motor 10, which is inserted into the interior of the flow control chamber 4, is fixedly connected to a drive shaft 11 via a coupling. A shaft hole 12 is provided on the side wall of the material fluidization chamber 1 covered by the flow control chamber 4. A bearing seat 13 is fixedly connected in the shaft hole 12. The shaft hole 12 is located between the material through hole 7 and the airflow evacuation hole 8. The bearing seat 13 extends into the interior of the material fluidization chamber 1. The bearing seat 13 is provided with a bearing hole 1301, which is a blind hole. One end of the drive shaft 11, which is away from the output shaft of the servo motor 10, is inserted into the bearing hole 1301. A bearing is connected between the bearing hole 1301 and the drive shaft 11. A bearing cover 14 is connected to the bearing hole 1301 and is pressed onto the bearing.

[0022] To achieve automatic control of this utility model, a servo motor 10 is provided. The servo motor 10 drives the material baffle 9 to rotate. It can also be used in conjunction with other sensors through a remote control program to remotely control the flow rate of powder materials and control the opening of the material baffle 9.

[0023] Furthermore, this invention improves the structural strength and rotational stability of the drive shaft 11 through the arrangement of the bearing housing 13, the bearing, and bearing accessories, ensuring smooth operation of the invention. The use of bearings and bearing accessories is existing technology frequently used by those skilled in the art; therefore, structural features such as steps on the shaft or shaft end retaining rings that should be provided for bearing use will not be described in detail here.

[0024] In practical use, multiple of these inventions can be connected in series according to the actual requirements of the site, so as to cooperate with multiple reactors. When multiple of these inventions are connected in series, it is only necessary to connect the material fluidization chambers 1 of multiple inventions in series one after the other.

[0025] This invention effectively avoids interference caused by the shared channel between materials and airflow, solves the process problem of powder materials being difficult to distribute evenly into multiple portions, avoids the problems of poor timeliness and high labor intensity caused by manually adjusting the flow rate of multiple portions of materials, effectively prevents powder material blockage, facilitates automated control of equipment, improves work efficiency, is easy to install and maintain, has a low failure rate, and is safe and reliable to use.

Claims

1. A powder material fluidization control device, characterized in that: It includes a material fluidization chamber (1), a fluidizing gas source chamber (2), a boiling bed (3), and a flow control chamber (4). The bottom surface of the material fluidization chamber (1) is open, and the cross-sectional shape of the material fluidization chamber (1) is rectangular. The top surface of the fluidizing gas source chamber (2) is open, and the fluidizing gas source chamber (2) is fixedly connected to the bottom of the material fluidization chamber (1). The top opening of the fluidizing gas source chamber (2) is connected to the bottom opening of the material fluidization chamber (1). The boiling bed (3) is fixedly connected between the top opening of the fluidizing gas source chamber (2) and the bottom opening of the material fluidization chamber (1). A gas source inlet pipe (5) is fixedly connected to the bottom surface of the fluidizing gas source chamber (2), and the gas source inlet pipe (5) is connected to the fluidizing gas source chamber (2). The flow control chamber (4) is fixedly connected to the outer wall of the material fluidization chamber (1) and extends along the length of the gas source inlet pipe (5). The flow control chamber (4) is located in the middle of the material fluidization chamber (1). The flow control chamber (4) is a rectangular chamber. A material output pipe (6) is fixedly connected to the bottom surface of the flow control chamber (4). The material output pipe (6) is connected to the flow control chamber (4). The side wall of the material fluidization chamber (1) covered by the flow control chamber (4) is provided with a material through hole (7) and an airflow evacuation hole (8). The material through hole (7) along the height direction of the material fluidization chamber (1) is located at the lower part of the side wall along the height direction of the material fluidization chamber (1). The airflow evacuation hole (8) along the height direction of the material fluidization chamber (1) is located at the upper part of the side wall along the height direction of the material fluidization chamber (1). A drive shaft (11) is rotatably connected inside the flow control chamber (4). A material baffle (9) is fixedly connected to the drive shaft (11). The material baffle (9) blocks the material through hole (7).

2. The powder material fluidization control device according to claim 1, characterized in that: The material through hole (7) is a semi-circular through hole, and the lower part of the material baffle (9) is a semi-circular baffle. The semi-circular area of ​​the lower part of the material baffle (9) is larger than the semi-circular area of ​​the material through hole (7).

3. The powder material fluidization control device according to claim 2, characterized in that: The airflow evacuation hole (8) is a rectangular through hole.

4. The powder material fluidization control device according to claim 3, characterized in that: A servo motor (10) is fixedly connected to the outer wall of the flow control chamber (4) parallel to the material fluidization chamber (1). The output shaft of the servo motor (10) passes through the outer wall of the flow control chamber (4) and extends into the interior of the flow control chamber (4). The end of the output shaft of the servo motor (10) that passes into the interior of the flow control chamber (4) is fixedly connected to a drive shaft (11) through a coupling.

5. The powder material fluidization control device according to claim 4, characterized in that: The material fluidization chamber (1) covered by the flow control chamber (4) is provided with a shaft hole (12) on the side wall. A bearing seat (13) is fixedly connected in the shaft hole (12). The shaft hole (12) is located between the material through hole (7) and the airflow evacuation hole (8). The bearing seat (13) extends into the material fluidization chamber (1). The bearing seat (13) is provided with a bearing hole (1301). The bearing hole (1301) is a blind hole. One end of the output shaft of the drive shaft (11) away from the servo motor (10) is inserted into the bearing hole (1301). A bearing is connected between the bearing hole (1301) and the drive shaft (11). A bearing cover (14) is connected to the bearing hole (1301). The bearing cover (14) is pressed onto the bearing.

6. A powder material fluidization control device according to any one of claims 1-5, characterized in that: The fluidized bed (3) is made of canvas.

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