A centrifugal blender

Abstract

This utility model discloses a centrifugal mixer, including a frame, a motor at the bottom of the frame, a sealed cylinder on the frame, an outer jacket outside the sealed cylinder, an inner jacket inside the outer jacket, and the inner jacket fitting snugly against the outer wall of the sealed cylinder; a flip-top cover on the top of the sealed cylinder, with a safety net below the flip-top; the bottom surface of the sealed cylinder is an inclined plane, with a fixed impeller at the center of the inclined plane, and a rotating impeller inside the fixed impeller, which is fixedly connected to a drive shaft, which is sealed to the sealed cylinder through a sealed transmission mechanism; the output shaft of the motor is connected to the drive shaft through a coupling; a discharge pipe is located at the bottom of the sealed cylinder, with its top end connected to the lower end of the inclined plane, and a discharge valve inside the discharge pipe. This utility model can achieve uniform mixing of materials, has a simplified internal structure, greatly reduces material residue, is easier to clean, and the safety net increases the safety of pouring materials and eliminates safety hazards.

Description

Technical Field

[0001] This utility model relates to the field of mixer technology, and in particular to a centrifugal mixer. Background Technology

[0002] Most existing mixers have a structure where a stirring paddle is placed at the top center and extends into the material for mixing. The bottom surface of the mixing area inside the mixer is horizontal, and there are no protective measures at the top. First, the fixed-position paddle is difficult to effectively stir the material near the inner wall, bottom center, and top, resulting in uneven mixing and dead zones. Second, material easily adheres to the paddle, stirring shaft, and inner wall, causing waste. If heating or cooling of the material is required, the adhered layer will also affect heat transfer efficiency, and cleaning is difficult, time-consuming, and labor-intensive, and it is also prone to bacterial growth. In addition, because there are no protective measures at the top, manual material pouring can easily lead to accidents if the material comes into contact with the stirring paddle, posing a safety hazard. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a centrifugal mixer, which aims to solve the technical problems of uneven mixing, serious material adhesion and residue, difficult cleaning, and safety hazards existing in the prior art.

[0004] The technical solution of this utility model is as follows: a centrifugal mixer includes a frame, a motor at the bottom of the frame, a sealed cylinder on the frame, an outer jacket outside the sealed cylinder, an inner jacket inside the outer jacket, and the inner jacket fitting snugly against the outer wall of the sealed cylinder; a flip-top cover on the top of the sealed cylinder, and a safety net below the flip-top; the bottom surface of the sealed cylinder is an inclined plane, a fixed impeller is located at the center of the inclined plane, a rotating impeller is located inside the fixed impeller, and a drive shaft is fixedly connected to the rotating impeller; the drive shaft is sealed to the sealed cylinder through a sealed transmission mechanism, and the output shaft of the motor is connected to the drive shaft through a coupling; a discharge pipe is located at the bottom of the sealed cylinder, the top end of the discharge pipe is connected to the lower end of the inclined plane, and a discharge valve is located inside the discharge pipe.

[0005] Furthermore, the bottom of the frame in this utility model is provided with a motor bracket, and the motor is vertically mounted on the motor bracket. The motor is a variable frequency motor.

[0006] Furthermore, in this utility model, the sealing cylinder body is installed on the frame, and the bottom of the sealing cylinder body is provided with a support foot, which is fixedly connected to the frame.

[0007] Furthermore, a step is provided on one side of the frame described in this utility model.

[0008] Furthermore, the inner interlayer of this invention is provided with a medium inlet and a medium outlet, and the medium inlet and the medium outlet extend out of the outer interlayer to the outside.

[0009] Furthermore, the sealing transmission mechanism of this utility model includes a welded flange seat fixedly connected to the bottom center of the sealing cylinder body, and a mounting flange seat fixedly connected to the bottom end of the welded flange seat. The transmission shaft is rotatably connected to the welded flange seat and the mounting flange seat through a first bearing and a second bearing, respectively. A mechanical seal is provided inside the mounting flange seat. The mechanical seal is fixedly connected to the welded flange seat, and the transmission shaft passes through the mechanical seal and is rotatably connected to the mechanical seal.

[0010] Furthermore, the top of the welding flange seat in this utility model is also provided with an oil seal, and the drive shaft is rotatably connected to the oil seal.

[0011] Furthermore, the top end of the discharge pipe in this utility model has a discharge port, and the discharge valve includes a valve disc that is driven to rise and fall by a discharge cylinder. The valve disc is located inside the discharge port, and the bottom end of the valve disc has a fitting part that fits against the bottom surface of the discharge port.

[0012] Compared with the prior art, this utility model has the following advantages: This utility model abandons the traditional central mechanical stirring blades. Through the cooperation of the bottom fixed impeller and the rotating impeller, the centrifugal force generated by the rotation of the rotating impeller is combined with gravity and the specific design of the inclined bottom of the sealed cylinder to drive the material in the cylinder to form a specific, efficient and holistic motion mode, so as to achieve uniform mixing of the material. Due to the small internal structure, the material residue can be greatly reduced and it is easier to clean. The setting of the safety net increases the safety of pouring and eliminates safety hazards. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present utility model;

[0014] Figure 2 This is a schematic diagram illustrating the specific arrangement of the inner interlayer described in this utility model;

[0015] Figure 3 This is a schematic diagram illustrating the specific setup of the safety net described in this utility model;

[0016] Figure 4 This is a cross-sectional view of the present invention;

[0017] Figure 5 This is a bottom view of the sealing cylinder body described in this utility model;

[0018] Figure 6 This is a schematic diagram of the internal structure of the discharge pipe described in this utility model;

[0019] Figure 7 This is a schematic diagram of the internal structure of the sealing cylinder body described in this utility model.

[0020] The components are as follows: 1. Frame; 2. Motor; 2a. Output shaft; 3. Sealing cylinder; 3a. Inclined surface; 4. Outer jacket; 5. Inner jacket; 5a. Medium inlet; 5b. Medium outlet; 6. Flip cover; 7. Safety net; 8. Fixed impeller; 9. Rotating impeller; 10. Drive shaft; 11. Coupling; 12. Discharge pipe; 12a. Discharge port; 13. Discharge valve; 1301. Discharge cylinder; 1302. Valve disc; 1302a. Fitting part; 14. Motor bracket; 15. Support foot; 16. Step; 17. Welded flange seat; 18. Mounting flange seat; 19. First bearing; 20. Second bearing; 21. Mechanical seal; 22. Oil seal. Detailed Implementation

[0021] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0022] Example:

[0023] The accompanying drawings illustrate a specific embodiment of the centrifugal mixer of this utility model. Figure 1 It mainly includes a frame 1, with a step 16 on one side of the frame 1. The height of the frame 1 is higher than the height of the step 16, so that personnel can stand on the step 16 to pour materials.

[0024] A motor bracket 14 is provided at the bottom of the frame 1, and the motor bracket 14 is fixedly connected to the frame 1. The motor 2 is vertically mounted on the motor bracket 14. The motor 2 is a variable frequency motor, which is convenient for speed adjustment.

[0025] A sealing cylinder 3 is provided on the frame 1. The sealing cylinder 3 is installed on the frame 1. The bottom of the sealing cylinder 3 is provided with four support feet 15, which are fixedly connected to the frame 1.

[0026] The outer sleeve 4 is provided on the outside of the sealed cylinder body 3, combined with Figure 2 An inner jacket 5 is provided inside the outer jacket 4, and the inner jacket 5 is fitted to the outer wall of the sealed cylinder 3. Specifically, the inner jacket 5 is provided with a medium inlet 5a and a medium outlet 5b, which extend out of the outer jacket 4 to the outside. In this embodiment, the specific structure of the inner jacket 5 can be found in the heating jacket and cooling jacket disclosed in Chinese Utility Model Patent Application No. 202422460147.0, and will not be described in detail here. Cold / hot medium can enter the inner jacket 5 through the medium inlet 5a and flow downwards layer by layer to cool / heat the material in the cylinder, and finally flow out from the medium outlet 5b.

[0027] The top of the sealed cylinder 3 is equipped with a flip cover 6, which can be rotated and opened for material discharge. (See reference) Figure 3A safety net 7 is provided below the flip cover 6. The safety net 7 increases the safety of pouring materials and prevents them from accidentally being inserted into the cylinder when pouring.

[0028] Reference Figure 4 , Figure 5 , Figure 7 The bottom surface inside the sealed cylinder 3 is an inclined surface 3a, and a fixed impeller 8 is provided at the center of the inclined surface 3a. The fixed impeller 8 is fixedly installed on the inclined surface 3a.

[0029] The fixed impeller 8 is equipped with a rotating impeller 9. The center of the rotating impeller 9 is fixedly connected to a drive shaft 10. The drive shaft 10 passes through the bottom of the sealed cylinder 3 and extends downward. The output shaft 2a of the motor 2 is connected to the drive shaft 10 through a coupling 11.

[0030] A welding flange seat 17 is fixedly connected to the bottom center of the sealing cylinder body 3. A mounting flange seat 18 is fixedly connected to the bottom end of the welding flange seat 17. The drive shaft 10 is rotatably connected to the welding flange seat 17 and the mounting flange seat 18 via a first bearing 19 and a second bearing 20, respectively. A mechanical seal 21 is installed inside the mounting flange seat 18, and the mechanical seal 21 is fixedly connected to the bottom of the welding flange seat 17. The drive shaft 10 passes through the mechanical seal 21 and is rotatably connected to it. An oil seal 22 is also provided at the top of the welding flange seat 17, and the drive shaft 10 is rotatably connected to the oil seal 22. The mechanical seal 21 and the oil seal 22 ensure a sealing effect during the installation of the drive shaft 10, preventing material leakage.

[0031] Reference Figure 4 , Figure 6 , Figure 7 The bottom of the sealed cylinder 3 is also provided with a discharge pipe 12. The top end of the discharge pipe 12 is connected to the lower end of the inclined surface 3a. The top end of the discharge pipe 12 has a discharge port 12a. The material in the cylinder can flow down the inclined surface 3a and enter the discharge pipe 12 through the discharge port 12a.

[0032] A discharge valve 13 is provided inside the discharge pipe 12. The discharge valve 13 includes a valve disc 1302 that is driven to rise and fall by a discharge cylinder 1301. The valve disc 1302 is located inside the discharge port 12a. The bottom end of the valve disc 1302 has a fitting part 1302a that fits against the bottom surface of the discharge port 12a. The telescopic rod of the discharge cylinder 1301 extends into the discharge pipe 12 and connects to the bottom end of the valve disc 1302. When the telescopic rod of the discharge cylinder 1301 extends, it presses the valve disc 1302 tightly against the discharge port 12a to prevent material leakage. When the telescopic rod of the discharge cylinder 1301 retracts, the valve disc 1302 is driven to move downward, the discharge port 12a opens, and the material can enter the discharge pipe 12 through the discharge port 12a for discharge.

[0033] When this invention is in operation, the flip cover 6 is opened to pour material into the sealed cylinder 3, the flip cover 6 is closed, and the motor 2 is started. The rotation speed of the variable frequency motor can be controlled to achieve different mixing intensities. The output shaft 2a of the motor 2 drives the transmission shaft 10 through the coupling 11, which in turn drives the rotating impeller 9 to rotate, generating centrifugal force. The rotating impeller 9 cooperates with the fixed impeller 8, and combined with the weight of the material itself and the specific design of the inclined surface 3a at the bottom of the sealed cylinder, drives the material inside the cylinder to form a specific, efficient, and holistic motion pattern, achieving uniform mixing. If heating or cooling of the material is required, simply introduce a medium into the inner jacket 5. After mixing is complete, the valve 1302 is opened, allowing the material inside the cylinder to flow downwards along the inclined surface 3a and enter the discharge pipe 12 through the discharge port 12a. Due to the simplified internal structure, material residue is greatly reduced, and cleaning is easier. Furthermore, since the rotating impeller 9 is located at the bottom of the cylinder, the safety net 7 is used to increase the safety of pouring material and eliminate safety hazards.

[0034] Of course, the above embodiments are only for illustrating the technical concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All modifications made in accordance with the spirit and essence of the main technical solution of this utility model should be covered within the protection scope of this utility model.

Claims

1. A centrifugal mixer, characterized in that: The device includes a frame (1), a motor (2) at the bottom of the frame (1), a sealing cylinder (3) on the frame (1), an outer sleeve (4) on the outside of the sealing cylinder (3), an inner layer (5) inside the outer sleeve (4), and the inner layer (5) fitting against the outer wall of the sealing cylinder (3); a flip cover (6) on the top of the sealing cylinder (3), and a safety net (7) below the flip cover (6); the bottom surface inside the sealing cylinder (3) is an inclined surface (3a), and a fixed surface is provided at the center of the inclined surface (3a). A fixed impeller (8) is provided, and a rotating impeller (9) is provided inside the fixed impeller (8). The rotating impeller (9) is fixedly connected to a drive shaft (10). The drive shaft (10) is sealed to the sealed cylinder (3) through a sealed transmission mechanism. The output shaft (2a) of the motor (2) is connected to the drive shaft (10) through a coupling (11). The bottom of the sealed cylinder (3) is provided with a discharge pipe (12). The top end of the discharge pipe (12) is connected to the lower end of the inclined surface (3a). The discharge pipe (12) is provided with a discharge valve (13).

2. A centrifugal mixer according to claim 1, characterized in that: The bottom of the frame (1) is provided with a motor bracket (14), and the motor (2) is vertically mounted on the motor bracket (14). The motor (2) is a variable frequency motor.

3. A centrifugal mixer according to claim 1, characterized in that: The sealing cylinder (3) is mounted on the frame (1), and the bottom of the sealing cylinder (3) is provided with a support foot (15), which is fixedly connected to the frame (1).

4. A centrifugal mixer according to claim 1, characterized in that: A step (16) is also provided on one side of the frame (1).

5. A centrifugal mixer according to claim 1, characterized in that: The inner jacket (5) is provided with a medium inlet (5a) and a medium outlet (5b), and the medium inlet (5a) and the medium outlet (5b) extend out of the outer jacket (4) to the outside.

6. A centrifugal mixer according to claim 1, characterized in that: The sealing transmission mechanism includes a welded flange seat (17) fixedly connected to the bottom center of the sealing cylinder (3). A mounting flange seat (18) is fixedly connected to the bottom end of the welded flange seat (17). The transmission shaft (10) is rotatably connected to the welded flange seat (17) and the mounting flange seat (18) through a first bearing (19) and a second bearing (20), respectively. A mechanical seal (21) is provided inside the mounting flange seat (18). The mechanical seal (21) is fixedly connected to the welded flange seat (17). The transmission shaft (10) passes through the mechanical seal (21) and is rotatably connected to the mechanical seal (21).

7. A centrifugal mixer according to claim 6, characterized in that: The top of the welding flange seat (17) is also provided with an oil seal (22), and the drive shaft (10) is rotatably connected to the oil seal (22).

8. A centrifugal mixer according to claim 1, characterized in that: The top end of the discharge pipe (12) has a discharge port (12a), and the discharge valve (13) includes a valve disc (1302) that is driven to rise and fall by a discharge cylinder (1301). The valve disc (1302) is located inside the discharge port (12a), and the bottom end of the valve disc (1302) has a fitting part (1302a) that fits against the bottom surface of the discharge port (12a).

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