Efficient sealing kneading machine for mixing and kneading alumina carrier

Abstract

The utility model provides an efficient sealing kneading machine for mixing and kneading an alumina carrier, which belongs to the field of kneading machine equipment and is characterized in that a through hole is adjacently arranged on the side wall of the kneading machine, a rotating shaft is rotatably arranged in the through hole, a fixed bearing bush is connected on the outer side wall of the kneading machine close to one side of the through hole, and the fixed bearing bush and the through hole are arranged on the same axis. A movable bearing bush is arranged above the fixed bearing bush, the movable bearing bush and the fixed bearing bush are combined to form a complete shaft sleeve, a sealing cavity is formed in the shaft sleeve, one end of the rotating shaft is sleeved with a sealing sleeve, and the sealing sleeve is rotationally arranged in the sealing cavity; the sealing sleeve can be used for sealing and blocking the through hole in the kneading machine when the kneading machine is used, so that materials in the kneading machine are prevented from leaking through the through hole, and the service life of the kneading machine is prevented from being influenced.

Description

Technical Field

[0001] This utility model relates to the field of kneading equipment, specifically to a high-efficiency sealed kneading machine for mixing alumina carriers. Background Technology

[0002] Kneaders, as a common mixing and stirring equipment, are widely used in various industries such as chemical, food, and plastics. Their working principle involves the high-speed rotation of the mixing shaft driving the impeller to powerfully stir and knead the materials, achieving uniform mixing. However, in practical applications, kneaders also face some technical challenges, particularly in sealing the rotating shaft.

[0003] Existing kneaders use packing seals at the contact points between the Z-type agitator bearing and the cylinder. However, packing seals are prone to aging and wear. When wear is severe, the packing seal can enter the kneader, introducing impurities. During carrier extrusion molding, this can easily clog the mold, affecting product quality and output. When the packing seal is damaged, there is continuous relative movement between the bushing and other contact components, leading to continuous wear on the surface material of the shaft. Over time, this accumulation can cause wear on the shaft, resulting in a smaller shaft diameter and reduced equipment sealing. Material can easily leak, and the generated dust can adhere to the reducer and bearings, affecting the service life of the kneader. This not only wastes materials but may also pollute the working environment. Utility Model Content

[0004] In view of this, the present invention provides a high-efficiency sealed kneader for mixing alumina carriers. By using a sealing sleeve to seal and block the through holes on the kneader, the material inside the kneader can be prevented from leaking through the through holes, thus affecting the service life of the kneader.

[0005] To solve the above-mentioned technical problems, this utility model provides a high-efficiency sealed kneading machine for mixing alumina carriers. It includes a through hole adjacent to the side wall of the kneading machine, within which a rotating shaft is installed. The through hole is used to limit and install the rotating shaft. A fixed bearing is connected to the outer side wall of the kneading machine near the through hole. The fixed bearing and the through hole are located on the same axis. A movable bearing is provided above the fixed bearing. The movable bearing and the fixed bearing merge to form a complete bushing. The diameter of the bushing is larger than the diameter of the through hole. The bushing includes a sealing cavity. A sealing sleeve is fitted onto one end of the rotating shaft. The sealing sleeve enhances the sealing effect, ensuring that the material is in a closed environment during kneading. The sealing sleeve is rotatably positioned within the sealing cavity. The fixed bearing supports the rotating shaft fitted with the sealing sleeve, and the bushing provides rotational support for the rotating shaft fitted with the sealing sleeve.

[0006] A pressure ring is provided at the end of the fixed or movable bearing away from the through hole. The pressure ring is used to limit the sealing sleeve in the sealing cavity, prevent the sealing sleeve from moving axially in the sealing cavity during rotation, and ensure the reliability of the seal so that the sealing sleeve is always rotated and set in the sealing cavity.

[0007] Both the fixed and movable bearing bushes have connecting plates on both sides, which are bolted together to integrate the fixed and movable bearing bushes, ensuring the strength of the bushing after assembly. The pressure ring is also bolted to either the fixed or movable bearing bush, further securing the position of the sealing sleeve.

[0008] The movable bearing is equipped with an oil filling port, which is connected to the sealing cavity, making it easy to inject lubricating oil into the sealing cavity, reducing the friction between the sealing sleeve and the inner wall of the bearing sleeve, extending the service life of the sealing sleeve and reducing the replacement cycle of the sealing sleeve.

[0009] A cover plate is installed above the oil filling port. The cover plate is used to seal the oil filling port after the oil filling is completed to prevent dust and other impurities from entering the sealing cavity and to prevent oil from splashing out from the oil filling port.

[0010] The kneader is equipped with a top cover, which is connected to a bag filter dust collector via a connecting pipe. The bag filter dust collector can effectively collect the dust generated during the kneading process, preventing dust from spreading and causing environmental pollution, and ensuring the cleanliness of the production environment and the health of the operators.

[0011] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0012] 1. Enhanced sealing effect: The sealing cavity inside the bushing and the sealing sleeve on the rotating shaft work together to ensure that the material is in a closed environment during the kneading process, preventing material leakage and the entry of external impurities, thus solving the problems of easy wear and impurity introduction in existing packing seals.

[0013] 2. Ensure shaft stability: The fixed bearing, the movable bearing, and the round hole on the other side of the kneader work together to provide stable support for the shaft, ensuring stable rotation and avoiding equipment failure due to unstable support.

[0014] 3. Prevent component movement: The pressure ring limits the sealing sleeve to prevent axial movement during rotation, ensuring the reliability of the seal and maintaining good sealing performance of the equipment.

[0015] 4. Extend equipment life: The oil injection port on the movable bearing makes it easy to inject lubricating oil into the sealing cavity, reducing friction between the sealing sleeve and the inner wall of the bushing, reducing component wear, and extending the service life of the equipment.

[0016] 5. Protect the production environment: The top cover of the kneader is connected to the bag filter through a connecting pipe. The bag filter can effectively collect the dust generated during the kneading process, prevent dust from spreading and causing environmental pollution, and ensure the cleanliness of the production environment and the health of the operators. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of a high-efficiency sealed kneader for mixing alumina carriers according to the present invention.

[0018] Figure 2 This is a schematic diagram of the left-side structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the sealing sleeve of this utility model;

[0020] Figure 4 This utility model Figure 3 A schematic diagram of the local structure at point A in the middle.

[0021] Explanation of reference numerals in the attached drawings: 1. Through hole; 2. Rotating shaft; 3. Fixed bearing; 4. Movable bearing; 5. Sealing cavity; 6. Sealing sleeve; 7. Pressure ring; 8. Connecting plate; 9. Oil inlet; 10. Cover plate; 11. Top cover; 12. Bag dust collector; 13. Connecting pipe; 14. Round hole; 15. Shaft sleeve. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0023] A high-efficiency sealed kneader for mixing alumina carriers, such as Figure 1 , 3 As shown: a through hole 1 is provided adjacent to the side wall of the kneader. A rotating shaft 2 is rotatably provided in the through hole 1. The through hole 1 facilitates the insertion of one end of the rotating shaft 2 into the kneader. A round hole 14 is provided at the end of the inner side wall of the kneader away from the through hole 1. The round hole 14 provides a rotation support point for the other end of the rotating shaft 2.

[0024] The sealing sleeve has 6 locations, such as Figure 1 , 3As shown in Figure 4: A fixed bearing 3 is connected to the outer wall of the kneader near the through hole 1. The fixed bearing 3 is fixed to the outer wall of the kneader by welding or bolting. The fixed bearing 3 is fixed to the side wall of the kneader to facilitate support for the rotating shaft 2. A movable bearing 4 is provided above the fixed bearing 3. The movable bearing 4 and the fixed bearing 3 are combined to form a bushing 15. The bushing 15 includes a sealing cavity 5. A sealing sleeve 6 is provided at one end of the rotating shaft 2. The sealing sleeve 6 is interference-fitted to the rotating shaft 2. The interference fit allows for a more secure connection between the sealing sleeve 6 and the rotating shaft 2. The sealing sleeve 6 is located inside the sealing cavity 5 and can rotate inside the sealing cavity 5. The bushing 15 is used to rotate and support the rotating shaft 2 on which the sealing sleeve 6 is sleeved. When the dust generated during the internal movement of the kneader is dispersed outward through the through hole 1, the dust disperses into the sealing cavity 5. The sealing sleeve 6 inside the sealing cavity 5 is tightly fitted with the inner side wall of the sealing sleeve 6 to block the dust dispersed in the sealing cavity 5. As long as the sealing sleeve 6 does not detach from the sealing cavity 5, the dust dispersed in the sealing cavity 5 will not escape or leak out of the kneader.

[0025] The sealing sleeve 6 consists of several narrow copper strips fitted onto the rotating shaft 2. Using several sealing sleeves 6 on the rotating shaft 2 makes it easy to replace the damaged sealing sleeves 6 individually, reducing the waste of sealing sleeves 6.

[0026] The sealing sleeve 6 is a copper sleeve. The copper sleeve has certain wear resistance and ductility and will not shed debris after wear, thus preventing debris from entering the kneader.

[0027] Connecting plate at 8 points Figure 1 , 3 As shown: Connecting plates 8 are provided on both sides of the movable bearing 4 and the fixed bearing 3. The connecting plates 8 are used to connect the movable bearing 4 and the fixed bearing 3 together. The connecting plates 8 are provided with threaded holes, and fastening bolts are provided in the threaded holes. The connecting plates 8 are tightly fixed together by the fastening bolts.

[0028] The fixed bearing 3 and the movable bearing 4 are connected by bolts to facilitate the disassembly of the movable bearing 4. When the sealing sleeve 6 is damaged, simply open the fastening bolts and separate the fixed bearing 3 and the movable bearing 4 to replace the damaged copper sleeve on the rotating shaft 2.

[0029] 7 points of pressure ring Figure 1 , 3 As shown in Figure 4: A pressure ring 7 is provided at the end of the fixed bearing 3 or the movable bearing 4 away from the through hole 1. The pressure ring 7 is used to limit the sealing sleeve 6 in the sealing cavity 5. The diameter of the pressure ring 7 is larger than the diameter of the bushing 15. The pressure ring 7 is used to prevent the sealing sleeve 6 from axially moving in the sealing cavity 5 during rotation, which would cause the sealing sleeve 6 to detach from the sealing cavity 5 and cause dust leakage.

[0030] There are 9 oil inlet ports, as shown below. Figure 1 , 3 As shown: The movable bearing 4 is provided with an oil inlet 9, which is connected to the sealing cavity 5, so as to facilitate the injection of lubricating oil into the sealing cavity 5. The lubricating oil entering the sealing cavity 5 can reduce the friction between the sealing sleeve 6 and the inner wall of the bushing 15, extend the service life of the sealing sleeve 6, and reduce the need to replace the sealing sleeve 6. The oil inlet 9 adopts a threaded interface, which facilitates the connection of oiling equipment.

[0031] 10 places on the cover plate Figure 1 , 4 As shown: A cover plate 10 is provided above the oil filling port 9. The cover plate 10 is connected to the oil filling port 9 through a threaded interface that is compatible with the oil filling port 9. After the oil filling is completed, the oil filling port 9 can be sealed to prevent dust and other impurities from entering the sealing cavity 5 and to prevent oil from splashing out from the oil filling port 9.

[0032] 11 places on the top cover Figure 1 , 2 As shown: A top cover 11 is provided above the kneader, and the top cover 11 is connected to the bag filter 12 via a connecting pipe 13. Both ends of the connecting pipe 13 are connected to the top cover 11 and the bag filter 12 respectively via flanges. Using flanges to connect the connecting pipe 13 facilitates the replacement of the connecting pipe 13. The bag filter 12 can effectively collect the dust generated inside the kneader during the kneading process, preventing dust from mixing with the materials inside the kneader and affecting the quality of subsequent material forming.

[0033] Working principle: The rotating shaft 2 on the kneader rotates at both ends within the through hole 1 and the round hole 14 respectively, driving the paddles to powerfully stir and knead the material in the kneader, achieving uniform mixing. The fixed bearing 3 and the movable bearing 4 near the through hole 1 merge to form a bushing 15. The sealing cavity 5 inside the bushing 15 and the sealing sleeve 6 fitted at one end of the rotating shaft 2 cooperate with each other to prevent material leakage and the entry of external impurities, creating a closed environment for material kneading.

[0034] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A high-efficiency sealed kneading machine for mixing alumina carriers, wherein the kneading machine has through holes (1) adjacent to each other on its sidewalls, and a rotating shaft (2) is rotatably disposed within the through holes (1), characterized in that: A fixed bearing (3) is connected to the outer wall of the kneader near the through hole (1). The fixed bearing (3) and the through hole (1) are located on the same axis. A movable bearing (4) is provided above the fixed bearing (3). The movable bearing (4) and the fixed bearing (3) are combined to form a complete bushing (15). The bushing (15) includes a sealing cavity (5). A sealing sleeve (6) is fitted on one end of the rotating shaft (2). The sealing sleeve (6) is rotatably disposed in the sealing cavity (5). The kneader has a circular hole (14) on the inner side wall away from the through hole (1), and the other end of the rotating shaft (2) is rotatably disposed in the circular hole (14).

2. The high-efficiency sealed kneading machine for mixing alumina carriers as described in claim 1, characterized in that: The fixed bearing (3) or the movable bearing (4) is provided with a pressure ring (7) for limiting the sealing sleeve (6) at one end away from the through hole (1).

3. The high-efficiency sealed kneading machine for mixing alumina carriers as described in claim 2, characterized in that: Both ends of the fixed bearing (3) and the movable bearing (4) are provided with connecting plates (8), and the two corresponding connecting plates (8) are connected by fasteners.

4. The high-efficiency sealed kneading machine for mixing alumina carriers as described in claim 3, characterized in that: The pressure ring (7) and the fixed bearing (3) or the movable bearing (4) are also connected by fasteners.

5. The high-efficiency sealed kneading machine for mixing alumina carriers as described in claim 4, characterized in that: The movable bearing (4) is provided with an oil inlet (9) that communicates with the sealing cavity (5).

6. The high-efficiency sealed kneader for mixing alumina carriers as described in claim 5, characterized in that: A cover plate (10) is provided above the oil inlet (9) for sealing the oil inlet (9).

7. The high-efficiency sealed kneader for mixing alumina carriers as described in claim 1, characterized in that: The kneader includes a top cover (11) and a bag filter (12) is provided outside the kneader. One end of the bag filter (12) is provided with a connecting pipe (13) that is connected to the top cover (11).

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