Water circulation equipment of water ring granulator

Abstract

The utility model provides water circulation equipment of a water ring granulator. The water circulation equipment comprises an inner box, a filter screen structure, an outer box and a pump machine. The top of the inner box is open, and a bottom partition plate is arranged in the inner box and divides the inner box into a first area and a second area. The filter screen structure comprises a first filter screen and a second filter screen; the first filter screen and the second filter screen are arranged in the first area and the second area in a one-to-one correspondence mode and are in sliding connection with the side wall of the bottom partition plate. The bottom of the outer box is opened, sleeves the outer surface of the inner box and covers the top opening of the inner box; a precipitation cavity, a filtering cavity and a clear water cavity which are horizontally adjacent in sequence are formed in the outer box; inclined guide plates are arranged on the cavity wall of the precipitation cavity in a staggered manner; the filter cavity is divided into a first filter area and a second filter area by a bottom partition plate; the clear water cavity is located in the second area of the inner box. The pump is installed on the top of the outer box, and the water inlet pipe penetrates through the outer box and is located in the clear water cavity. Through the design of the split type box body, the maintenance convenience of the filter screen and the sealing reliability of the box body are both considered.

Description

Technical Field

[0001] This utility model relates to the technical field of water ring pelletizers, specifically to a water circulation device for a water ring pelletizer. Background Technology

[0002] Water ring pelletizing is a crucial step in polymer material processing, and the operational efficiency of its supporting water circulation system directly impacts production stability and resource utilization. Existing solutions often employ a structure of water tank, circulating pump, and built-in filter. However, long-term operation has revealed the following problems: micron-sized debris generated during high-speed pelletizing of materials like polypropylene easily forms deep blockages in the filter, causing a continuous decline in filtration efficiency. Furthermore, the built-in filter structure is completely submerged within the water tank, necessitating complex operations such as complete system drainage and tank disassembly for filter replacement. To address maintenance challenges, some improvements have attempted to add access doors to the side walls of the water tank. However, practical application shows that these access doors pose a risk of leakage. More seriously, frequent opening and closing of the access doors causes deformation of the sealing strips, requiring complete replacement of the sealing components periodically. Utility Model Content

[0003] Therefore, it is necessary to address the conflict between improving the convenience of filter maintenance and maintaining the reliability of water tank sealing in existing water circulation equipment, and to provide a water circulation device for a water ring pelletizer.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A water circulation device for a water ring pelletizer includes an inner chamber, a filter structure, an outer chamber, and a pump.

[0006] The inner box has an opening at the top and a bottom partition in the middle section, which divides the interior of the inner box into a first and a second horizontally adjacent area; the top of the bottom partition is lower than the top of the inner box.

[0007] The filter structure includes a first filter and a second filter; the first filter and the second filter are respectively disposed in the first region and the second region, and are slidably connected to the side wall of the bottom partition.

[0008] The outer casing has an opening at the bottom, which fits over the outer surface of the inner casing and covers the opening at the top of the inner casing. Inside the outer casing, there are horizontally adjacent sedimentation chambers, filtration chambers, and clear water chambers. The sedimentation chambers are located in the first region of the inner casing, and inclined guide plates are staggered on the symmetrical chamber walls to guide the water flow path. The filtration chambers are divided into a first filtration area and a second filtration area by a bottom partition, and the cross-sectional areas of the first and second filtration areas correspond one-to-one with the dimensions of the first and second filter screens. The clear water chamber is located in the second region of the inner casing.

[0009] The pump is installed on the top of the outer casing, and the inlet pipe runs through the outer casing and is located in the clear water chamber. Driving the pump creates a water flow path in the space formed by the outer and inner casings, from the top of the outer casing into the sedimentation chamber, through the first filtration area and the second filtration area, and out of the clear water chamber.

[0010] Furthermore, the pore size of the first filter screen is larger than that of the second filter screen, and the first filter screen is higher than the second filter screen.

[0011] Furthermore, the first filter screen and the second filter screen are provided with a first slider on the side wall edge of the bottom partition plate, and the bottom partition plate is provided with a first groove from top to bottom that matches the first slider.

[0012] Furthermore, the first and second filter screens are connected to the side wall edges of the inner box with second sliders, and the inner box has a second groove adapted to the second sliders from top to bottom.

[0013] Furthermore, multiple baffles are fixed to the top of the inner side of the outer casing, and the ends of the baffles enter the first groove and contact the first slider.

[0014] Furthermore, the edges of the first and second filters are fitted with sealing strips to fill the gaps between them and the inner box wall.

[0015] Furthermore, the first filter screen adopts a two-layer filter screen structure, with the lower filter screen structure being smaller than the upper filter screen structure, and there is a gap between the two to accommodate impurities.

[0016] Furthermore, the middle part of the second filter screen bulges outward to form an arc-shaped structure.

[0017] Furthermore, the outer casing has a limiting cavity inside for accommodating the inner casing panel, the limiting cavity being located on the side of the sedimentation chamber opposite to the filtration chamber.

[0018] Furthermore, an access door for replacing the filter screen is provided on the top of the outer casing.

[0019] Compared with the prior art, the beneficial effects of this utility model include:

[0020] 1. This utility model, through the design of a split box, allows for the quick separation of the outer box and the inner box without damaging the overall seal, facilitating cleaning of both the outer and inner boxes. Furthermore, the filter screen can be replaced through the inspection door on the top of the outer box, thus balancing the convenience of filter screen maintenance with the reliability of the box's seal.

[0021] 2. This utility model forms a stepped interception by differentiating the height of the first and second filters, thus preventing large particles from impacting the fine filter. In addition, the first filter adopts a double-layer filter structure and is equipped with a cavity to accommodate impurities. The amount of impurities accommodated allows for better judgment on whether to replace the filter. The convex arc surface structure of the second filter increases the effective filtration area. Attached Figure Description

[0022] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0023] Figure 1 This is a perspective view of the water circulation device of a water ring pelletizer introduced in this utility model;

[0024] Figure 2 Based on Figure 1 A schematic diagram of the internal structure of the inner box;

[0025] Figure 3 Based on Figure 1 A schematic diagram of the internal structure of the outer casing;

[0026] Figure 4 Based on Figure 1 Internal sectional view;

[0027] Figure 5 Based on Figure 1 Side sectional view;

[0028] Figure 6 Based on Figure 5 A schematic diagram of the structure of the first filter screen.

[0029] The diagram shows the following labels: 1. Inner chamber; 11. Bottom partition; 12. Inclined guide plate; 2. Filter structure; 21. First filter screen; 22. Second filter screen; 3. Outer chamber; 31. Sedimentation chamber; 32. Filtration chamber; 33. Clear water chamber; 34. Baffle; 4. Pump. Detailed Implementation

[0030] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0031] Please see Figure 1 This embodiment introduces a water circulation device for a water ring pelletizer, which mainly consists of an inner box 1, a filter structure 2, an outer box 3, and a pump 4.

[0032] The open design at the top of the inner tank 1 facilitates filter maintenance. The bottom of the inner tank is divided into a first area and a second area by a bottom partition 11. The top of the bottom partition 11 is lower than the top of the inner tank 1. The two areas are horizontally adjacent. The first area is used to receive circulating water containing impurities and perform preliminary filtration, while the second area is used for fine filtration.

[0033] The filter structure 2 is installed on the bottom partition plate 11. The filter structure 2 includes a first filter 21 and a second filter 22. The pore size of the first filter 21 is larger than that of the second filter 22. Therefore, the first filter 21 is located in the first area for preliminary filtration, and the second filter 22 is located in the second area for fine filtration. The first filter 21 adopts a double-layer stepped structure. In practical applications, the upper layer can be a stainless steel woven mesh, and the lower layer can be a perforated plate. The upper layer is larger than the lower layer, and the gap between their edges forms a temporary storage cavity for impurities. The water flow path is from bottom to top through the first filter 21, over the top of the bottom partition plate 11, and then from top to bottom through the second filter 22. To ensure that the water flow can fully contact the second filter 22, it is preferable that the first filter 21 is higher than the second filter 22. The second filter 22 can be a flat structure or an arc-shaped structure, preferably a convex arc surface structure to increase the effective filtration area. In addition, sealing strips, preferably silicone sealing strips, are provided on the edges of the first filter screen 21 and the second filter screen 22. These strips maintain elastic contact with the side wall of the inner box 1 during the lifting and lowering of the first filter screen 21 and the second filter screen 22 to prevent water bypass leakage.

[0034] The bottom partition 11 has a first sliding groove on its side wall from top to bottom, which slides in cooperation with the first sliders on the sides of the first filter screen 21 and the second filter screen 22 to ensure that the filter screens are in contact with the bottom partition 11 when they move vertically. The bottom end of the first sliding groove is the height of the first filter screen 21 and the second filter screen 22 inside the inner box 1. Since the first filter screen 21 is higher than the second filter screen 22, the bottom ends of the first sliding grooves on both sides of the bottom partition 11 are not the same, and are opened accordingly according to actual needs. At the same time, the cooperation of the first sliding groove and the first slider also serves to support the first filter screen 21 and the second filter screen 22. In order to further improve the support of the first filter screen 21 and the second filter screen 22, a second slider is connected to the side wall edge of the first filter screen 21 and the second filter screen 22 near the inner wall of the inner box 1. The inner wall of the inner box has a second sliding groove from top to bottom that matches the second slider.

[0035] The outer casing 3 is described in detail below. The bottom opening of the outer casing 3 covers the outer wall of the inner casing 1. The interior of the outer casing 3 has horizontally linear partitions that divide the interior into horizontally adjacent sedimentation chambers 31, filtration chambers 32, and clear water chambers 33. To improve the stability of the connection between the outer casing 3 and the inner casing 1, a limiting cavity is provided on the outside of the sedimentation chamber 31 to accommodate the inner casing 1's panels. It is important to emphasize that when the outer casing 3 is completely fitted inside the inner casing 1, the partitions inside the outer casing 3 do not contact the bottom of the inner casing 1. Therefore, water can flow through the gap between the bottom of the outer casing 3 and the bottom of the inner casing 1.

[0036] When the outer casing 3 is fitted over the inner casing 1, the sedimentation chamber 31 is located outside the first region. An inclined guide plate 12 is installed inside the chamber wall to guide the water flow path. The inclined guide plates 12 are staggered, preferably at a 45° angle, to prolong the water flow residence time. The filtration chamber 32 is divided into a first filtration area and a second filtration area by a bottom partition 11. The first filtration area corresponds to the first filter screen 21, and the second filtration area corresponds to the second filter screen 22. The cross-sectional area is consistent with the projected area of ​​the filter screens to ensure no dead zones in the water flow. The clear water chamber 33 is located outside the second region. Therefore, the sedimentation chamber 31 and the first filtration area of ​​the outer casing 3 overlap with the first region of the inner casing 1, and the second filtration area and the clear water chamber 33 of the outer casing 3 overlap with the second region of the inner casing 1. Multiple baffles 34 are fixed to the top of the inner casing 3. The ends of the baffles 34 enter the first sliding groove and contact the first slider, blocking the first slider to prevent water pressure from causing the first filter screen 21 and the second filter screen 22 to slide, thus affecting stability.

[0037] In addition, the top of the outer casing 3 is provided with an inspection door for replacing the filter structure 2. The inspection door can be removed from the outer casing 3. A baffle 34 is installed on the inspection door. When the inspection door is removed, the baffle 34 also disengages from the first slide groove. At this time, the first filter 21 and the second filter 22 are not blocked by the baffle 34 and can be replaced. The condition of the internal filter can be observed through the inspection door, and the corresponding filter can be replaced at the appropriate time.

[0038] Since the outer casing 3 has a water inlet at the top, which is connected to the sedimentation chamber 31, and the pump 4 is located at the top of the outer casing 3, and the water inlet pipe passes through the outer casing 3 and is located in the clear water chamber 33, when the pump 4 is working, the water flows from the top of the outer casing 3 into the sedimentation chamber 31, contacts the inclined guide plate 12, enters the first filtration area from the bottom side of the sedimentation chamber 31, then enters the second filtration area from the top side of the first filtration area, enters the clear water chamber 33 from the bottom side of the second filtration area, and is sucked out by the pump 4. When passing through the first filtration area and the second filtration area, it is filtered by the first filter screen 21 and the second filter screen 22 to intercept impurities. Therefore, the pump 4 outputs purified circulating water.

[0039] In practical applications, the outer box 3 or the inner box 1 can be extended or retracted to separate the outer box 3 and the inner box 1.

[0040] This embodiment uses a split-type box design to quickly separate the outer box 3 and the inner box 1 without damaging the overall seal, which facilitates cleaning of the outer box 3 and the inner box 1. The filter screen can be replaced through the inspection door on the top of the outer box 3, thus balancing the convenience of filter screen maintenance and the reliability of the box seal.

[0041] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A water circulation device of a water ring pelletizer characterized by, It includes: The inner box (1) is provided with an open top, and the middle section of the inner box (1) is provided with a bottom partition plate (11), which divides the inner box (1) into a first area and a second area adjacent to each other, and the top end of the bottom partition plate (11) is lower than the top end of the inner box (1); The filter screen structure (2) includes a first filter screen (21) and a second filter screen (22); the first filter screen (21) and the second filter screen (22) are arranged one by one in the first area and the second area and are in sliding connection with the side wall of the bottom partition plate (11); The outer box (3) is provided with an open bottom, is sleeved on the outer surface of the inner box (1) and covers the top opening of the inner box (1); the inner box (3) is provided with a sedimentation cavity (31), a filtration cavity (32) and a clean water cavity (33) arranged in sequence and horizontally, the sedimentation cavity (31) is located in the first area of the inner box (1), and inclined guide plates (12) are arranged in a staggered manner on the opposite cavity walls to guide the water flow path; the filtration cavity (32) is divided into a first filtration area and a second filtration area by the bottom partition plate (11), and the cross-sectional areas of the first filtration area and the second filtration area correspond to the sizes of the first filter screen (21) and the second filter screen (22); the clean water cavity (33) is located in the second area of the inner box (1); The pump (4) is installed on the top of the outer box (3), the water inlet pipe penetrates the outer box (3) and is located in the clean water cavity (33); the pump (4) is driven to form a water flow path in the space composed of the outer box (3) and the inner box (1), which enters the sedimentation cavity (31) from the top of the outer box (3), passes through the first filtration area and the second filtration area, and is discharged from the clean water cavity (33).

2. The water circulation apparatus of a water ring pelletizer according to claim 1, wherein The pore size of the first filter screen (21) is larger than that of the second filter screen (22), and the first filter screen (21) is higher than the second filter screen (22).

3. The water circulating apparatus of a water ring pelletizer according to claim 1, wherein The first filter screen (21) and the second filter screen (22) are provided with first sliding blocks at the side wall edges close to the bottom partition plate (11), and the bottom partition plate (11) is provided with first sliding grooves from top to bottom and matched with the first sliding blocks.

4. The water circulation apparatus of a water ring pelletizer according to claim 3, wherein The first filter screen (21) and the second filter screen (22) are connected with second sliding blocks at the side wall edges close to the inner wall of the inner box (1), and the inner wall of the inner box (1) is provided with second sliding grooves from top to bottom and matched with the second sliding blocks.

5. The water circulation apparatus of a water ring pelletizer according to claim 4, wherein A plurality of baffles (34) are fixedly connected to the inner top of the outer box (3), and the ends of the baffles (34) enter the first sliding grooves and are in contact with the first sliding blocks.

6. The water circulating apparatus of a water ring pelletizer according to claim 1, wherein Sealing strips are clamped at the edges of the first filter screen (21) and the second filter screen (22) to fill the gaps with the box wall of the inner box (1).

7. The water circulating apparatus of a water ring pelletizer according to claim 1, wherein The first filter screen (21) adopts a two-layer filter screen structure, the size of the lower filter screen structure is smaller than that of the upper filter screen structure, and there is a gap between the two for accommodating impurities.

8. The water circulating apparatus of a water ring pelletizer according to claim 1, wherein The middle part of the second filter screen (22) is outwardly convex to form an arc surface structure.

9. The water circulating apparatus of a water ring pelletizer according to claim 1, wherein The inner box (3) is provided with a limiting cavity for accommodating the box plate of the inner box (1), and the limiting cavity is located on the side of the sedimentation cavity (31) away from the filtration cavity (32).

10. The water circulating apparatus of a water ring pelletizer according to claim 1, wherein The top of the outer box (3) is provided with an access door for replacing the filter screen structure (2).

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