Vacuum drum filter agitator driven by eccentric

Abstract

The utility model relates to vacuum drum filter technical field, especially through eccentric wheel drive's vacuum drum filter mixing device. Mixing device contains drum material groove (9), and the mixing shaft (3) is installed in the mixing seal mounting seat (901) of drum material groove (9) both sides and is penetrated, and the mixing shaft (3) left side is connected transmission system (7), shaft coupling (8), bearing assembly (2), sealing assembly (1) and tail bearing assembly (5) from left to right in proper order;The mixing shaft (3) is connected with eccentric wheel (4) in the drum material groove (9);The eccentric pin axle I (10) outside is equipped with the mixing frame seal cover (11);The mixing shaft (3) can drive the inner race of eccentric wheel (4) rotation under the drive of transmission system, and further can drive the outer ring of eccentric wheel (4) and eccentric wheel tail part connecting mechanism (402) and mixing frame (6) do pendulum motion, even eccentric wheel drive mixing frame do pendulum motion.

Description

Technical Field

[0001] This utility model relates to the field of vacuum drum filter technology, and in particular to a stirring device for a vacuum drum filter driven by an eccentric wheel. Background Technology

[0002] Vacuum drum filters are a type of continuous filtration equipment. They have advantages such as continuous filtration, washing, drying, high degree of automation, small footprint, and strong adaptability to materials. Therefore, they are widely used in various industrial fields that require solid-liquid separation, such as petroleum, chemical, metallurgy, pharmaceutical, starch, food, papermaking, desulfurization, and sewage treatment.

[0003] The equipment mainly includes core components such as a feed trough, a rotating drum, a stirring device, and a scraper device. During operation, the raw material mixture first enters the feed trough and is drawn into the rotating drum area under negative pressure. Driven by a motor, the drum rotates slowly, causing solid particles to be evenly adsorbed onto the filter medium on the drum surface, forming a filter cake. Subsequently, the filter cake moves with the drum to the discharge area, where it is scraped off by the scraper device, completing the solid-liquid separation process.

[0004] Because solid particles in the mixture tend to settle easily, equipment typically includes a pendulum-like stirring device inside the trough to maintain uniform material suspension. However, most commonly used vacuum drum stirring mechanisms are crank-connecting rod structures, which have significant drawbacks during operation: long-term operation can cause bending and deformation of the stirring frame beam, leading to stirrer failure or damage, affecting production continuity and increasing equipment operation and maintenance costs.

[0005] Furthermore, some existing designs have mixing mechanisms installed outside the drum trough, which cannot achieve complete sealing and results in insufficient airtightness. This structural defect may lead to material leakage during mixing, causing not only raw material waste and environmental pollution, but also potential safety accidents, posing a threat to operator health and production stability.

[0006] In conclusion, while vacuum drum filters play a vital role in various industries, their agitation devices still have significant shortcomings in terms of structural reliability and sealing performance, limiting their effectiveness in more complex operating conditions. Therefore, optimizing the structure and improving the performance of the agitation device has significant engineering application value and practical significance. Utility Model Content

[0007] The purpose of this utility model is to provide a better stirring device for a vacuum drum filter driven by an eccentric wheel. The specific purpose is explained in the several substantial technical effects described in the specific implementation section.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: The stirring device of the vacuum drum filter driven by the eccentric wheel is characterized in that the stirring device includes a drum trough 9, a stirring shaft 3 is installed through stirring and sealing mounting seats 901 on both sides of the drum trough 9, and the left side of the stirring shaft 3 is connected to the transmission system 7, coupling 8, bearing assembly 2, sealing assembly 1 and tail bearing assembly 5 from left to right. The stirring shaft 3 is connected to the eccentric wheel 4 inside the rotating drum trough 9. The tail of the eccentric wheel is connected to the stirring frame 6 through a pin. The eccentric wheel is a bearing-type eccentric wheel. The outer ring of the eccentric wheel 4 is connected to the tail connection mechanism 402 of the eccentric wheel through pin II12. The two sides of the mixing frame 6 have a lug sleeve 601 with a pin I10 inside. The mixing frame 6 is connected to the mixing frame mounting seat 902 on the rotating drum trough 9 through the pin I10. The outside of the pin I10 is provided with a mixing frame sealing cover 11. Driven by the transmission system, the stirring shaft 3 can drive the inner ring of the eccentric wheel 4 bearing to rotate, and further drive the outer ring of the eccentric wheel 4, the eccentric wheel tail connecting mechanism 402, and the stirring frame 6 to perform pendulum motion, so that the eccentric wheel drives the stirring frame to perform pendulum motion.

[0009] A further technical solution of this utility model is that a sealing mounting seat 901 and a stirring frame mounting seat 902 are provided on both sides of the rotating drum material trough 9.

[0010] A further technical solution of this utility model is that the transmission system 7 is connected to the stirring shaft 3 through the coupling 8, and can drive the stirring shaft to rotate.

[0011] A further technical solution of this utility model is that the sealing assembly 1 includes a sealing cover 101 and a sealing box 102. The sealing cover 101 and the sealing box 102 are connected by bolts, and the sealing box 102 is fixed on the stirring sealing mounting seat 901 on the side wall of the rotating drum material trough 9 by bolts.

[0012] A further technical solution of this utility model is that the eccentric wheel 4 includes an eccentric wheel bearing 401, the eccentric wheel bearing 401 is connected to the stirring shaft, and the tail connecting mechanism 402 is rotatably connected to the stirring frame 6.

[0013] A further technical solution of this utility model is that there are two eccentric wheels 4 in total, and the tail connection mechanism 402 of the eccentric wheel is rotatably connected to the stirring frame 6 through the pin II12.

[0014] The present invention, employing the above technical solution, has the following advantages over the prior art: The transmission system drives the stirring shaft to rotate, which in turn drives the inner ring of the eccentric wheel bearing to rotate. Because the shaft hole of the inner ring of the eccentric wheel bearing is an eccentric mechanism, it drives the outer ring of the bearing and the tail connecting mechanism to perform a linear up-and-down swinging motion. The tail connecting mechanism of the eccentric wheel drives the stirring frame to perform a reciprocating pendulum motion. The two eccentric wheels are connected on both sides of the stirring frame, resulting in uniform force distribution and preventing deformation of the stirring frame. Existing systems all use a single crank connecting rod structure. Because the stirring shaft experiences varying forces during each rotation, and for the transmission system outside the rotating drum trough, this uneven force distribution makes its components more prone to damage and increases operating costs. This invention also extends the service life of the transmission system.

[0015] This novel vacuum drum filter mixing device has a mixing shaft that runs through and is installed on both sides of the mixing and sealing mounting base of the drum material trough. Both sides of the mixing shaft are equipped with sealing components, making the vacuum material trough a completely sealed environment, ensuring safe and reliable operation without leakage.

[0016] In summary, this novel vacuum drum filter stirring device features simple structure, stable operation, convenient maintenance, long service life, and high reliability. Attached Figure Description

[0017] To further illustrate this utility model, the following description is provided in conjunction with the accompanying drawings: Figure 1 This is a structural diagram of the stirring device of a vacuum drum filter driven by an eccentric wheel according to the present invention. Figure 2 This is a structural diagram of the mixing rack and eccentric wheel; Figure 3 This is a structural diagram of an eccentric wheel; Figure 4 This is a cross-sectional view of the eccentric wheel. In the diagram, 1. Sealing assembly; 2. Bearing assembly; 3. Stirring shaft; 4. Eccentric wheel; 401. Eccentric wheel bearing; 402. Eccentric wheel tail connection mechanism; 5. Tail bearing assembly; 501. Tail bearing sealing cover; 6. Stirring frame; 601. Lug bushing; 7. Transmission system; 8. Coupling; 9. Rotary drum trough; 901. Stirring seal mounting base; 902. Stirring frame mounting base; 10. Pin I; 11. Stirring frame sealing cover; 12. Pin II; 4011. Power shaft interface; 4012. Eccentric wheel tail connection mechanism connection part; 101. Sealing gland; 102. Sealing box body. Detailed Implementation

[0018] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention 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. Therefore, they should not be construed as limitations on the present invention. In addition, unless otherwise expressly 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; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in the present invention can be understood according to the specific circumstances.

[0019] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0020] This patent provides multiple parallel solutions; the different descriptions represent improved or parallel solutions based on a basic solution. Each solution has its own unique characteristics. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other. Fixing methods not described herein can be any type of fixing, such as threaded fixing, bolt fixing, or adhesive bonding.

[0021] Example 1: Referring to all the accompanying drawings; The stirring device of the vacuum drum filter driven by the eccentric wheel is characterized in that the stirring device includes a drum material trough 9, and the stirring shaft 3 is installed through the stirring sealing mounting base 901 on both sides of the drum material trough 9. The left side of the stirring shaft 3 is connected from left to right to the transmission system 7, the coupling 8, the bearing assembly 2, the sealing assembly 1 and the tail bearing assembly 5. The stirring shaft 3 is connected to the eccentric wheel 4 inside the rotating drum trough 9. The tail of the eccentric wheel is connected to the stirring frame 6 through a pin. The eccentric wheel is a bearing-type eccentric wheel. The outer ring of the eccentric wheel 4 is connected to the tail connection mechanism 402 of the eccentric wheel through pin II12. The two sides of the mixing frame 6 have a lug sleeve 601 with a pin I10 inside. The mixing frame 6 is connected to the mixing frame mounting seat 902 on the rotating drum trough 9 through the pin I10. The outside of the pin I10 is provided with a mixing frame sealing cover 11. Driven by the transmission system, the stirring shaft 3 can rotate the inner ring of the eccentric wheel 4 bearing, which in turn drives the outer ring of the eccentric wheel 4, the eccentric wheel tail connecting mechanism 402, and the stirring frame 6 to perform a pendulum motion, thus driving the eccentric wheel to perform a pendulum motion. The substantial technical effect and its implementation process, i.e., the basic function and non-obvious aspects, are as follows: In this embodiment, the transmission system of the vacuum drum filter drives the stirring shaft to rotate, which in turn drives the inner ring of the eccentric wheel bearing to rotate. Since the shaft hole of the inner ring of the eccentric wheel bearing is an eccentric mechanism, it drives the outer ring of the bearing and the eccentric wheel tail connecting mechanism to perform linear motion. The eccentric wheel tail connecting mechanism drives the stirring frame to perform a reciprocating pendulum motion. The two eccentric wheels are connected on both sides of the stirring frame, resulting in uniform force distribution and preventing deformation of the stirring frame. Existing systems all use a single crank connecting rod structure. Because the force on the stirring shaft varies with each rotation, the transmission system outside the drum trough is more prone to damage due to uneven force distribution, resulting in certain operating and maintenance costs. This utility model extends the service life of the transmission system. At the same time, it features simple structure, stable operation, convenient maintenance, long service life, and high reliability.

[0022] As a technical optimization of this utility model, the transmission system 7 is connected to the stirring shaft 3 through the coupling 8; in this embodiment: the transmission system 7 is connected to the stirring shaft 3 through the coupling 8, driving the stirring shaft to rotate.

[0023] As a technical optimization of this utility model: the sealing component 1 includes a sealing cover 101 and a sealing box 102. The sealing cover 101 and the sealing box 102 are connected by bolts, and the sealing box 102 is fixed on the sealing mounting seat 901 on the side wall of the rotating drum material trough by bolts.

[0024] In this embodiment, the sealing assembly 1 is fixed to the sealing mounting base 901 on the side wall of the drum feed trough by bolts. This ensures that the vacuum drum agitator operates in a closed environment, thereby achieving the safe and reliable operation of the vacuum drum system.

[0025] As a technical optimization of this utility model: the eccentric wheel bearing 401 is connected to the stirring shaft 3, and the eccentric wheel tail connecting mechanism 402 is rotatably connected to the stirring frame 6.

[0026] In this embodiment, the eccentric wheel 4 consists of an eccentric wheel bearing 401 and a tail connection mechanism 402. The eccentric wheel bearing 401 is connected to the stirring shaft 3, and the eccentric wheel tail connection mechanism 402 is rotatably connected to the stirring frame 6. The eccentric wheel drives the stirring frame to perform a reciprocating pendulum motion, thereby keeping the material at the bottom of the rotating drum trough in a suspended state and preventing sedimentation.

[0027] As a technical optimization of this utility model: there are two lug bushings 601 on both sides of the stirring frame 6, and there is a pin I10 inside. The pin I10 is connected to the stirring frame mounting seat 10 on the rotating drum material trough 9, and there is a sealing cover 11 connected to the outside of the pin I10.

[0028] In this embodiment: The mixing frame 6 has two lug bushings 601 on both sides, each containing a pin I, which connects to the mixing frame mounting base 902 on the rotating drum trough 9. A sealing cover 11 connects to the outside of the pin I 10. This ensures the mixing frame installation position is completely enclosed and facilitates the maintenance of the pin I 10. As a technical optimization of this utility model: the mixing frame 6 is connected to the mixing frame mounting base 902 via the pin I 10.

[0029] In this embodiment: the stirring rack 6 is connected to the stirring rack mount 902 via pin I10. The stirring rack mount 902 is the fulcrum and performs a reciprocating pendulum motion under the drive of the eccentric wheel.

[0030] The working principle and usage process of this utility model: The transmission system of the vacuum drum filter drives the stirring shaft to rotate. The stirring shaft drives the inner ring of the eccentric wheel bearing to rotate. When the eccentric shaft hole structure of the inner ring of the eccentric wheel bearing rotates, it drives the outer ring of the bearing and the connecting mechanism at the tail of the eccentric wheel to make linear motion. The stirring frame uses the stirring frame mounting base as the fulcrum and makes a reciprocating pendulum motion under the drive of the connecting mechanism at the tail of the eccentric wheel, so that the material at the bottom of the stirring drum trough is in a suspended state and does not settle.

[0031] 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.

Claims

1. A stirring device for a vacuum drum filter driven by an eccentric wheel, characterized in that, The stirring device includes a rotating drum trough (9), and a stirring shaft (3) is installed through the stirring seal mounting base (901) on both sides of the rotating drum trough (9). The left side of the stirring shaft (3) is connected to the transmission system (7), coupling (8), bearing assembly (2), sealing assembly (1) and tail bearing assembly (5) in sequence from left to right. The stirring shaft (3) is connected to the eccentric wheel (4) in the rotating drum trough (9). The tail of the eccentric wheel is connected to the stirring frame (6) through a pin. The eccentric wheel is a bearing type eccentric wheel. The outer ring of the eccentric wheel (4) is connected to the tail connection mechanism (402) of the eccentric wheel through pin II (12). The two sides of the mixing frame (6) have a pin I (10) in the lug bushing (601). The mixing frame (6) is connected to the mixing frame mounting seat (902) on the rotating drum material trough (9) through the pin I (10). The outside of the pin I (10) is provided with a mixing frame sealing cover (11). Driven by the transmission system, the stirring shaft (3) can drive the inner ring of the eccentric wheel (4) bearing to rotate, and further drive the outer ring of the eccentric wheel (4), the eccentric wheel tail connection mechanism (402), and the stirring frame (6) to make pendulum motion, so that the eccentric wheel drives the stirring frame to make pendulum motion.

2. The stirring device for a vacuum drum filter driven by an eccentric wheel as described in claim 1, characterized in that, The rotating drum feed trough (9) is provided with a sealing mounting seat (901) and a stirring rack mounting seat (902) on both sides.

3. The stirring device for a vacuum drum filter driven by an eccentric wheel as described in claim 1, characterized in that, The transmission system (7) is connected to the stirring shaft (3) via a coupling (8) and can drive the stirring shaft to rotate.

4. The stirring device for a vacuum drum filter driven by an eccentric wheel as described in claim 1, characterized in that, The sealing assembly (1) includes a sealing cap (101) and a sealing box (102). The sealing cap (101) and the sealing box (102) are connected by bolts. The sealing box (102) is fixed to the stirring sealing mounting seat (901) on the side wall of the rotating drum trough (9) by bolts.

5. The stirring device for a vacuum drum filter driven by an eccentric wheel as described in claim 1, characterized in that, The eccentric wheel (4) includes an eccentric wheel bearing (401), which is connected to the stirring shaft, and the tail connecting mechanism (402) is rotatably connected to the stirring frame (6).

6. The stirring device for a vacuum drum filter driven by an eccentric wheel as described in claim 1, characterized in that, There are two eccentric wheels (4) in total. The tail connection mechanism (402) of the eccentric wheel is rotatably connected to the stirring frame (6) through pin II (12).

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