A centrifuge pull bag

Abstract

This utility model relates to the field of centrifuge technology and discloses a centrifuge bag-pulling device. The centrifuge bag-pulling device includes a rotating drum and a bag-pulling assembly. A bag-pulling bracket is provided at the bottom of the rotating drum, and an opening is provided at the top of the rotating drum. The bag-pulling assembly includes a main filter bag, an upper auxiliary filter cloth, and a lower auxiliary filter cloth. The upper auxiliary filter cloth is fixedly disposed on the upper part of the main filter bag, and the lower auxiliary filter cloth is fixedly disposed on the lower part of the main filter bag. A connecting sleeve is fixedly provided at the connection between the main filter bag and the upper auxiliary filter cloth. A mounting bracket is fixedly connected to the upper surface of the rotating drum, and overlapping mounting grooves are provided at the connection points between the mounting bracket and the rotating drum. This utility model uses external pin fixing technology during use, avoiding the risks of operation in confined spaces, and allows for rapid installation, improving installation efficiency and shortening downtime.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge technology, specifically to a centrifuge pull bag. Background Technology

[0002] In the field of centrifuge technology, bag-type centrifuges (also known as hanging bag centrifuges) are widely used in solid-liquid separation scenarios in industries such as pharmaceuticals, chemicals, and food due to their high-efficiency unloading characteristics. The filter bag fixing structure of traditional bag-type centrifuges usually adopts a four-component pressing form, and its core components include a liquid-blocking port, a bag-shaking support, an inner expansion ring of the drum, and a reinforcing expansion ring.

[0003] In the existing technology, the above-mentioned filter bag fixing structure has significant defects in practical applications: the installation process requires one worker to enter the drum to operate, while another person assists from the outside. Due to the closed space and complex structure inside the drum, there are safety risks; it relies on special expansion ring installation tools for multiple calibrations, which is cumbersome and takes 1-2 hours to install a single device, making it difficult to meet the maintenance needs of large-scale production. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a centrifuge pull bag, which solves the problems of the installation process requiring one worker to enter the drum while another assists from the outside, posing safety risks due to the enclosed and complex structure of the drum; and relying on specialized expansion ring installation tools for multiple calibrations, which is cumbersome and takes 1-2 hours to install a single unit, making it difficult to meet the maintenance needs of large-scale production.

[0005] This utility model provides the following technical solution: a centrifuge bag puller, including a rotating drum and a bag puller assembly, wherein a bag puller support is provided at the bottom of the interior of the rotating drum, and an opening is provided at the top of the rotating drum;

[0006] The bag assembly includes a main filter bag, an upper auxiliary filter cloth, and a lower auxiliary filter cloth. The upper auxiliary filter cloth is fixedly disposed on the upper part of the main filter bag, and the lower auxiliary filter cloth is fixedly disposed on the lower part of the main filter bag. A connecting sleeve is fixedly disposed at the connection between the main filter bag and the upper auxiliary filter cloth.

[0007] A ring of mounting brackets is fixedly connected to the upper surface of the rotating drum. The mounting brackets are provided with overlapping mounting slots at the connection points with the rotating drum, and each mounting bracket is provided with a locking component.

[0008] Preferred technical solution 1: The mounting bracket is concave, the locking component includes a bolt and a plug, and through holes matching the plug are provided on both sides of the mounting bracket. A threaded hole is provided on the upper surface of one end of each mounting bracket, and the bolt can be threaded into the inside of the threaded hole.

[0009] This solution facilitates the installation and fixation of the bag assembly.

[0010] Preferred technical solution 2: A reinforcing band is provided on the bag assembly, and the reinforcing band is fixedly disposed on the surface of the main filter bag, the upper auxiliary filter cloth, and the lower auxiliary filter cloth.

[0011] This solution makes the structure of the pouch assembly more robust.

[0012] Preferred technical solution 3: The number of reinforcing strips matches the position of the connecting sleeve, and one end of the reinforcing strip is fixedly disposed between the connecting sleeve and the connecting sleeve.

[0013] Preferred technical solution four: The bag support is provided with a support expansion ring.

[0014] This solution facilitates the fixation of the lower auxiliary filter cloth.

[0015] Preferred technical solution five: An inner expansion ring is provided at the upper opening position of the rotating drum.

[0016] This solution allows for easy fixation of the upper auxiliary filter cloth.

[0017] Compared with the prior art, this utility model provides a centrifuge bag puller with the following advantages: When installing the bag puller, the bag puller assembly is placed inside the rotating drum, and the lower auxiliary filter cloth is fixed by the bracket expansion ring. Then, multiple connecting sleeves on the bag puller assembly are passed through the corresponding mounting slots, so that the connecting sleeves are located inside the mounting frame. Then, the insertion rod is inserted into the through hole and passes through the inside of the connecting sleeve to fix the connecting sleeve. Then, the bolt is installed inside the threaded hole, and the insertion rod is pressed and fixed by the bolt, thereby tightening and fixing the main filter bag. Then, the upper auxiliary filter cloth is fixed by the inner expansion ring. This is convenient and quick. This utility model adopts external pin fixing technology during use, avoiding the operation risks in confined spaces, and can be installed quickly, improving installation efficiency and shortening downtime. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the rotating drum and bag assembly structure of this utility model;

[0019] Figure 2 For the present utility model Figure 1 Enlarged view of the structure of A in the middle;

[0020] Figure 3 This is an exploded view of the mounting bracket and locking assembly structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the bag assembly structure of this utility model.

[0022] In the diagram: 1. Rotary drum; 2. Bag-pulling assembly; 3. Bag-pulling bracket; 4. Bracket expansion ring; 5. Inner expansion ring; 6. Main filter bag; 7. Upper auxiliary filter cloth; 8. Lower auxiliary filter cloth; 9. Connecting sleeve; 10. Mounting bracket; 11. Bolt; 12. Insert rod; 13. Through hole; 14. Threaded hole; 15. Reinforcing strip; 16. Mounting groove. Detailed Implementation

[0023] Please see Figure 1-4 ,

[0024] Example 1: A centrifuge bag-pulling device includes a rotating drum 1 and a bag-pulling assembly 2. A bag-pulling bracket 3 is provided at the bottom of the interior of the rotating drum 1, and an opening is provided at the top of the rotating drum 1.

[0025] The bag assembly 2 includes a main filter bag 6, an upper auxiliary filter cloth 7, and a lower auxiliary filter cloth 8. The upper auxiliary filter cloth 7 is fixedly installed on the upper part of the main filter bag 6, and the lower auxiliary filter cloth 8 is fixedly installed on the lower part of the main filter bag 6. A connecting sleeve 9 is fixedly installed at the connection between the main filter bag 6 and the upper auxiliary filter cloth 7.

[0026] A ring of mounting brackets 10 is fixedly connected to the upper surface of the rotating drum 1. The mounting brackets 10 and the rotating drum 1 are connected to each other with overlapping mounting grooves 16. Each mounting bracket 10 is equipped with a locking component.

[0027] Example 2: The difference between this example and Example 1 is that the mounting bracket 10 is concave, the locking component includes a bolt 11 and a plug rod 12, and through holes 13 matching the plug rod 12 are provided on both sides of the mounting bracket 10. A threaded hole 14 is provided on the upper surface of one end of each mounting bracket 10, and the bolt 11 can be threaded into the inside of the threaded hole 14 to facilitate the installation and fixing of the pull bag component 2.

[0028] Example 3: The difference between this example and Example 1 is that a reinforcing band 15 is provided on the bag-pulling assembly 2. The reinforcing band 15 is fixedly provided on the surface of the main filter bag 6, the upper auxiliary filter cloth 7, and the lower auxiliary filter cloth 8, making the structure of the bag-pulling assembly 2 more robust.

[0029] Example 4: The difference between this example and Example 1 is that the number of reinforcing straps 15 matches the position of the connecting sleeve 9, and one end of the reinforcing strap 15 is fixedly set with the connecting sleeve 9.

[0030] Example 5: The difference between this example and Example 1 is that the bag support 3 is provided with a support expansion ring 4 to facilitate the fixing of the lower auxiliary filter cloth 8.

[0031] Example 6: The difference between this example and Example 1 is that an inner expansion ring 5 is provided at the upper opening of the rotating drum 1 to facilitate the fixing of the upper auxiliary filter cloth 7.

[0032] In summary, the centrifuge's bag-pulling mechanism involves placing the bag-pulling assembly 2 inside the rotating drum 1 during installation. The lower auxiliary filter cloth 8 is fixed using the support tension ring 4. Then, multiple connecting sleeves 9 on the bag-pulling assembly 2 are passed through the corresponding mounting slots 16, positioning the connecting sleeves 9 inside the mounting frame 10. Next, the insertion rod 12 is inserted into the through hole 13 and passes through the connecting sleeve 9 to fix it. Finally, bolts 11 are installed inside the threaded hole 14 to tighten and fix the insertion rod 12, thereby tightening and fixing the main filter bag 6. Finally, the upper auxiliary filter cloth 7 is fixed using the inner tension ring 5. This method is convenient and quick. The invention employs external pin fixing technology, avoiding the risks of working in confined spaces and allowing for rapid installation, improving installation efficiency and reducing downtime.

Claims

1. A drawstring bag of a centrifuge comprising a bowl (1), a drawstring bag assembly (2), characterized in that: The bottom of the inner part of the rotating drum (1) is provided with a bag support (3), and the upper part of the rotating drum (1) is provided with an opening; The bag assembly (2) includes a main filter bag (6), an upper auxiliary filter cloth (7), and a lower auxiliary filter cloth (8). The upper auxiliary filter cloth (7) is fixedly disposed on the upper part of the main filter bag (6), and the lower auxiliary filter cloth (8) is fixedly disposed on the lower part of the main filter bag (6). A connecting sleeve (9) is fixedly disposed at the connection between the main filter bag (6) and the upper auxiliary filter cloth (7). A ring of mounting brackets (10) is fixedly connected to the upper surface of the rotating drum (1). The mounting brackets (10) and the rotating drum (1) are provided with overlapping mounting grooves (16). Each mounting bracket (10) is provided with a locking component.

2. A pull bag for a centrifuge according to claim 1, wherein: The mounting bracket (10) is concave. The locking assembly includes a bolt (11) and a plug (12). Both sides of the mounting bracket (10) are provided with through holes (13) that match the plug (12). One end of the upper surface of each mounting bracket (10) is provided with a threaded hole (14). The bolt (11) can be threaded into the inside of the threaded hole (14).

3. A pull bag for a centrifuge according to claim 1, wherein: A reinforcing band (15) is provided on the bag assembly (2), and the reinforcing band (15) is fixedly disposed on the surface of the main filter bag (6), the upper auxiliary filter cloth (7), and the lower auxiliary filter cloth (8).

4. A pull bag for a centrifuge according to claim 3, wherein: The number of reinforcing bands (15) matches the position of the connecting sleeve (9), and one end of the reinforcing band (15) is fixedly disposed between the connecting sleeve (9).

5. The pull bag of claim 1, wherein: The bag support (3) is provided with a support expansion ring (4).

6. A pull bag for a centrifuge according to claim 1, wherein: An inner expansion ring (5) is provided at the upper opening of the rotating drum (1).

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