A silicon carbide flat sheet membrane sintering powder flat sheet membrane sintering pretreatment

Abstract

This utility model relates to the field of silicon carbide pretreatment technology, specifically disclosing a pretreatment method for silicon carbide flat sheet film sintering powder. The method includes a premixing tank with a feeder at the top and a discharge port at the bottom. A discharge valve is located outside the discharge port, and an inclined guide trough is located below the discharge port. The inclined guide trough is rotatably connected to the premixing tank via cylindrical pins on the left and right sides of the outer wall of the premixing tank. A vibration assembly is provided on the premixing tank to drive the inclined guide trough to oscillate. A first rotating shaft is located inside the premixing tank, and two second rotating shafts are arranged around the first rotating shaft. Multiple stirring rods are located outside the first and second rotating shafts. The dual-shaft structure can break up powder agglomerates inside the tank, ensuring that the silicon carbide powder does not clog when discharged. The discharged powder passes through the inclined guide trough to the target area. The vibration assembly drives the inclined guide trough to oscillate, accelerating powder discharge while preventing powder blockage between the discharge port and the inclined guide trough, further improving the smoothness of powder discharge.

Description

Technical Field

[0001] This utility model relates to the field of pretreatment technology for sintering flat sheet films, and in particular to a pretreatment method for sintering silicon carbide flat sheet film powder. Background Technology

[0002] With increasing global focus on environmental protection, the demand for high-performance filtration and separation technologies has become increasingly urgent, providing a valuable opportunity for the development and application of silicon carbide flat sheet membranes. As an inorganic ceramic membrane resistant to extreme environments, silicon carbide flat sheet membranes, with their advantages of high temperature resistance, strong acid and alkali resistance, pollution resistance, high mechanical strength, and long lifespan, are widely used in industrial wastewater treatment. They can handle high-salt, high-temperature wastewater from coal chemical industry, highly corrosive wastewater from metallurgical electroplating, and high-concentration organic wastewater from food and pharmaceutical industries. Through pretreatment to remove impurities or deep treatment to remove pollutants, they facilitate wastewater reuse and zero discharge. Silicon carbide flat sheet membranes are processed through a sintering process. During processing, operators need to screen and proportion the silicon carbide powder, and the proportioning requires a mixing device to premix different types of powder.

[0003] For example, patent application number CN202320406751.8 discloses a multi-stage powder coating premixer, including a housing. The top center of the housing has a feed inlet. A first motor is fixedly connected to the upper right side of the housing. The output end of the first motor passes through the housing and is fixedly connected to a bidirectional threaded rod. The left end of the bidirectional threaded rod is rotatably connected to the upper left side of the housing. Both ends of the bidirectional threaded rod are threadedly connected to a first movable plate. This type of premixer can stir and clear raw materials blocked at the outlet, thereby improving discharge efficiency. To ensure that the powder discharged from the outlet is accurately delivered to the target area, some premixers add an inclined guide trough below the outlet to guide the powder. There is a gap between the inclined guide trough and the outlet. However, when the premixer's discharge speed is too fast, the powder easily accumulates in the gap area, making it difficult to discharge in time, thus causing blockage at the outlet and affecting discharge efficiency. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes a pretreatment method for silicon carbide flat sheet film sintering powder flat sheet film sintering, which overcomes the shortcomings of existing methods.

[0005] To achieve the purpose of this utility model, the utility model is achieved through the following technical solution: a pretreatment of silicon carbide flat film sintering powder flat film sintering, including a premixing tank, a feeder is provided at the upper end of the premixing tank, and a discharge port is provided at the lower end of the premixing tank, and both the discharge port and the feeder are connected to the premixing tank.

[0006] A discharge valve is provided on the outside of the discharge port, and an inclined guide chute is provided below the discharge port. The inclined guide chute is rotatably connected to the premix tank through cylindrical pins on the left and right sides of the outer wall of the premix tank. A vibration component is provided on the premix tank to push the inclined guide chute to shake.

[0007] The premix tank has a first rotating shaft inside, two second rotating shafts around the first rotating shaft, and multiple stirring rods outside the first and second rotating shafts. The stirring rods are staggered from each other. The upper end of the premix tank has a drive assembly for controlling the rotation of the first and second rotating shafts.

[0008] A further improvement is that the feeder includes at least one feeding hopper, which is placed above the premix tank. A guide pipe is provided at the lower end of the feeding hopper. One end of the guide pipe is fixedly connected to the feeding hopper, and the other end of the guide pipe is fixedly connected to the premix tank. The feeding hopper is connected to the premix tank through the guide pipe.

[0009] A further improvement is that the first and second rotating shafts extend from the top of the premix tank and are rotatably connected to the premix tank via connecting bearings.

[0010] A further improvement is that the drive assembly includes a motor, which is mounted on the upper end of the premix tank. The power end of the motor is fixedly connected to the upper end of the first rotating shaft. The upper end of the first rotating shaft is provided with two second pulleys, which are fixedly connected to the first rotating shaft. The upper end of the premix tank is provided with two first pulleys, which are respectively fixedly mounted on the upper ends of two second rotating shafts. The two first pulleys are respectively connected to the two second pulleys through two sets of transmission belts.

[0011] A further improvement is that the motor, the first pulley, the second pulley, and the transmission belt are provided with a dustproof box on the outside. The dustproof box is detachably connected to the upper end of the premix tank, and the motor is detachably connected to the inside of the dustproof box.

[0012] A further improvement is that the vibration assembly includes a vibration motor and two telescopic connecting rods. The vibration motor is located between the premix tank and the inclined guide trough. The mounting end of the vibration motor is hinged to the outer wall of the premix tank, and the power end of the vibration motor is hinged to the upper end of the inclined guide trough. The telescopic connecting rods are located at the left and right ends of the inclined guide trough. The upper end of the telescopic connecting rod is hinged to the outer wall of the premix tank, and the lower end of the telescopic connecting rod is hinged to the upper end of the inclined guide trough.

[0013] A further improvement is that the telescopic connecting rod includes an outer cylinder and an inner rod. The outer cylinder is sleeved on the outside of the inner rod and is slidably connected to the inner rod. The upper end of the outer cylinder is hinged to the outer wall of the premix tank, and the lower end of the inner rod is hinged to the upper end of the inclined guide chute.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The dual-shaft structure can break up powder clumps inside the tank, ensuring that there is no blockage when the powder is discharged. The discharged powder is guided to the target area through the inclined guide chute. The vibration component pushes the inclined guide chute to shake, which speeds up the powder discharge and prevents the powder from getting stuck between the discharge port and the inclined guide chute, further improving the smoothness of powder discharge. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural diagram of the exterior of the premix tank in this utility model.

[0018] Figure 2 This is a structural diagram of the interior of the premix tank in this utility model.

[0019] Figure 3 This is a structural diagram of the inclined guide trough in this utility model.

[0020] Figure 4 This is a structural diagram of the motor in this utility model.

[0021] The components include: 1. Premix tank; 2. Feed hopper; 3. Guide pipe; 4. Discharge port; 5. Discharge valve; 6. Inclined guide trough; 7. Cylindrical pin; 8. Motor; 9. Dustproof box; 10. First rotating shaft; 11. Second rotating shaft; 12. Stirring rod; 13. Vibrating motor; 14. Telescopic connecting rod; 15. First pulley; 16. Second pulley; 17. Transmission belt. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a pretreatment method for silicon carbide flat film sintering powder flat film sintering, including a premixing tank 1, a feeder at the upper end of the premixing tank 1, and a discharge port 4 at the lower end of the premixing tank 1. Both the discharge port 4 and the feeder are connected to the premixing tank 1.

[0024] A discharge valve 5 is provided on the outside of the discharge port 4, and an inclined guide trough 6 is provided below the discharge port 4. The inclined guide trough 6 is rotatably connected to the premix tank 1 through cylindrical pins 7 on the left and right sides of the outer wall of the premix tank 1. A vibration component that pushes the inclined guide trough 6 to shake is provided on the premix tank 1.

[0025] The premix tank 1 has a first rotating shaft 10 inside, and two second rotating shafts 11 around the first rotating shaft 10. Multiple stirring rods 12 are provided on the outside of the first rotating shaft 10 and the second rotating shaft 11, and the stirring rods 12 are staggered. The upper end of the premix tank 1 is provided with a drive assembly for controlling the rotation of the first rotating shaft 10 and the second rotating shaft 11.

[0026] The drive assembly controls the rotation of the first rotating shaft 10 and the second rotating shaft 11. During rotation, the first rotating shaft 10 breaks up the powder clumps in the central area of ​​the premix tank 1 through the stirring rod 12. During rotation, the second rotating shaft 11 breaks up the powder clumps in the edge area of ​​the premix tank 1 through the stirring rod 12, ensuring that the powder does not get blocked when it is discharged through the outlet 4.

[0027] After the discharge valve 5 is opened, the premixed powder will be discharged from the lower port of the discharge port 4. The inclined guide chute 6 guides the powder to the target area. During this process, the vibration component will push the inclined guide chute 6 to shake. The inclined guide chute 6 shakes to speed up the powder discharge and prevent the powder from clogging between the discharge port 4 and the inclined guide chute 6, further improving the smoothness of powder discharge.

[0028] Specifically, the feeder includes at least one feeding hopper 2, which is positioned above the premixing tank 1. A guide pipe 3 is located at the lower end of the feeding hopper 2, with one end fixedly connected to the feeding hopper 2 and the other end fixedly connected to the premixing tank 1. The feeding hopper 2 is connected to the premixing tank 1 via the guide pipe 3. Silicon carbide powder and auxiliary materials to be premixed are fed into the feeding hopper 2, and the powder enters the premixing tank 1 through the guide pipe 3 for premixing. The funnel-shaped design facilitates rapid powder feeding.

[0029] It is worth explaining in detail that the first rotating shaft 10 and the second rotating shaft 11 extend from the top of the premix tank 1, and the first rotating shaft 10 and the second rotating shaft 11 are rotatably connected to the premix tank 1 through a connecting bearing.

[0030] Regarding driver components:

[0031] The drive assembly includes a motor 8, which is mounted on the upper end of the premix tank 1. The power end of the motor 8 is fixedly connected to the upper end of the first rotating shaft 10. The upper end of the first rotating shaft 10 is provided with two second pulleys 16, which are fixedly connected to the first rotating shaft 10. The upper end of the premix tank 1 is provided with two first pulleys 15, which are fixedly mounted on the upper ends of two second rotating shafts 11 respectively. The two first pulleys 15 are respectively connected to the two second pulleys 16 through two sets of transmission belts 17.

[0032] The motor 8 uses belt drive to control the rotation of the first rotating shaft 10 and the second rotating shaft 11. When the motor 8 starts, it drives the first rotating shaft 10 to rotate and mix the powder. The rotation of the first rotating shaft 10 drives the second pulley 16 to rotate. The second pulley 16 pulls the first pulley 15 through the transmission belt 17, causing the two second rotating shafts 11 to rotate. The rotation of the second rotating shafts 11, together with the first rotating shaft 10, performs double stirring of the powder, further accelerating the powder mixing efficiency.

[0033] To prevent the drive components from being exposed and affecting the long-term normal operation of the equipment, a dustproof box 9 is provided on the outside of the motor 8, the first pulley 15, the second pulley 16 and the transmission belt 17. For the convenience of drive component maintenance, the dustproof box 9 is detachably connected to the upper end of the premix tank 1, and the motor 8 is detachably connected to the inside of the dustproof box 9.

[0034] The dustproof box 9 has a bolt plate on its outer side, with a fixing bolt on the bolt plate. When removing the dustproof box 9 from the top of the premix tank 1, simply unscrew the fixing bolt on the bolt plate from the threaded hole on the outside of the premix tank 1. The motor 8 is also fixed to the dustproof box 9 by bolt connection. When removing the dustproof box 9 from the top of the premix tank 1, first unscrew the fixing bolt on the motor 8 from the bolt hole on the outside of the dustproof box 9 to release the fixation between the motor 8 and the dustproof box 9.

[0035] Regarding the vibration assembly:

[0036] The vibration assembly includes a vibration motor 13 and two telescopic connecting rods 14. The vibration motor 13 is located between the premix tank 1 and the inclined guide chute 6. The mounting end of the vibration motor 13 is hinged to the outer wall of the premix tank 1, and the power end of the vibration motor 13 is hinged to the upper end of the inclined guide chute 6. The telescopic connecting rods 14 are located at the left and right ends of the inclined guide chute 6. The upper end of the telescopic connecting rods 14 is hinged to the outer wall of the premix tank 1, and the lower end of the telescopic connecting rods 14 is hinged to the upper end of the inclined guide chute 6.

[0037] The power end of the vibratory motor 13 has an eccentric block. The center of gravity of the eccentric block is offset from the rotor axis, forming an eccentricity. When the vibratory motor 13 is powered on, the stator winding generates a rotating magnetic field, which drives the rotor and the eccentric block to rotate at high speed. During the rotation, the eccentric block will generate a continuously changing centrifugal force due to the offset of the center of gravity. This centrifugal force is transmitted to the inclined guide trough 6 through the hinge, causing the inclined guide trough 6 to generate periodic vibration.

[0038] Telescopic connecting rods 14 are located on the left and right sides of the inclined guide trough 6, enabling connection and limiting of the inclined guide trough 6 from the left and right sides of the premix tank 1, reducing the pressure burden at the connection point between the vibration motor 13 and the inclined guide trough 6. Specifically, the telescopic connecting rod 14 includes an outer cylinder and an inner rod. The outer cylinder is sleeved on the outside of the inner rod and slidably connected to it. The upper end of the outer cylinder is hinged to the outer wall of the premix tank 1, and the lower end of the inner rod is hinged to the upper end of the inclined guide trough 6. As a commonly used connecting device, the telescopic connecting rod 14 will not be described in detail here.

[0039] How this application works:

[0040] The drive assembly controls the rotation of the first rotating shaft 10 and the second rotating shaft 11. During rotation, the first rotating shaft 10 breaks up powder clumps in the central area of ​​the premix tank 1 via the stirring rod 12. Similarly, the second rotating shaft 11, during rotation, breaks up powder clumps at the edges of the premix tank 1 via the stirring rod 12, ensuring that the powder does not become clogged when discharged through the outlet 4. After the discharge valve 5 is opened, the premixed powder is discharged from the lower port of the outlet 4. The inclined guide chute 6 guides the powder to the target area. During this process, the vibration assembly pushes the inclined guide chute 6 to shake, accelerating powder discharge and preventing powder blockage between the outlet 4 and the inclined guide chute 6, further improving the smoothness of powder discharge.

[0041] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0042] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A pretreatment method for silicon carbide flat sheet film sintering powder flat sheet film sintering, comprising a premixing tank (1), wherein a feeder is provided at the upper end of the premixing tank (1), and a discharge port (4) is provided at the lower end of the premixing tank (1), wherein the discharge port (4) and the feeder are both connected to the premixing tank (1), characterized in that: A discharge valve (5) is provided on the outside of the discharge port (4), and an inclined guide trough (6) is provided below the discharge port (4). The inclined guide trough (6) is rotatably connected to the premix tank (1) through cylindrical pins (7) provided on the left and right sides of the outer wall of the premix tank (1). A vibration assembly is provided on the premix tank (1) to push the inclined guide trough (6) to shake. The premix tank (1) is provided with a first rotating shaft (10) on its inner side, and two second rotating shafts (11) are provided around the first rotating shaft (10). Multiple stirring rods (12) are provided on the outer side of the first rotating shaft (10) and the second rotating shafts (11). Each stirring rod (12) is staggered from the other. The upper end of the premix tank (1) is provided with a drive assembly for controlling the rotation of the first rotating shaft (10) and the second rotating shafts (11).

2. The silicon carbide flat sheet film sintering powder flat sheet film pretreatment according to claim 1, characterized in that: The feeder includes at least one feeding hopper (2), which is placed above the premix tank (1). The lower end of the feeding hopper (2) is provided with a guide pipe (3). One end of the guide pipe (3) is fixedly connected to the feeding hopper (2), and the other end of the guide pipe (3) is fixedly connected to the premix tank (1). The feeding hopper (2) is connected to the premix tank (1) through the guide pipe (3).

3. The silicon carbide flat sheet film sintering powder flat sheet film pretreatment according to claim 1, characterized in that: The first rotating shaft (10) and the second rotating shaft (11) extend from the top of the premix tank (1) and are rotatably connected to the premix tank (1) via connecting bearings.

4. The silicon carbide flat sheet film sintering powder flat sheet film pretreatment according to claim 3, characterized in that: The drive assembly includes a motor (8), which is installed on the upper end of the premix tank (1). The power end of the motor (8) is fixedly connected to the upper end of the first rotating shaft (10). The upper end of the first rotating shaft (10) is provided with two second pulleys (16), which are fixedly connected to the first rotating shaft (10). The upper end of the premix tank (1) is provided with two first pulleys (15), which are fixedly installed on the upper ends of two second rotating shafts (11). The two first pulleys (15) are respectively connected to the two second pulleys (16) through two sets of transmission belts (17).

5. The silicon carbide flat sheet film sintering powder flat sheet film pretreatment according to claim 4, characterized in that: The motor (8), the first pulley (15), the second pulley (16) and the transmission belt (17) are provided with a dustproof box (9) on the outside. The dustproof box (9) is detachably connected to the upper end of the premix tank (1). The motor (8) is detachably connected to the inside of the dustproof box (9).

6. The silicon carbide flat sheet film sintering powder flat sheet film pretreatment according to claim 1, characterized in that: The vibration assembly includes a vibration motor (13) and two telescopic connecting rods (14). The vibration motor (13) is located between the premix tank (1) and the inclined guide trough (6). The mounting end of the vibration motor (13) is hinged to the outer wall of the premix tank (1), and the power end of the vibration motor (13) is hinged to the upper end of the inclined guide trough (6). The telescopic connecting rods (14) are located at the left and right ends of the inclined guide trough (6). The upper end of the telescopic connecting rods (14) is hinged to the outer wall of the premix tank (1), and the lower end of the telescopic connecting rods (14) is hinged to the upper end of the inclined guide trough (6).

7. The silicon carbide flat sheet film sintering powder flat sheet film pretreatment according to claim 6, characterized in that: The telescopic connecting rod (14) includes an outer cylinder and an inner rod. The outer cylinder is sleeved on the outside of the inner rod and is slidably connected to the inner rod. The upper end of the outer cylinder is hinged to the outer wall of the premix tank (1), and the lower end of the inner rod is hinged to the upper end of the inclined guide trough (6).

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