Filter element of melt prefilter

Abstract

The utility model relates to the technical field of melt filtering, and discloses a filter element of a melt prefilter, which comprises a filter element inner pipe and a sealing disc, the filter element inner pipe is detachably connected with the sealing disc, the bottom of the filter element inner pipe is connected with a water inlet pipe, and the top of the filter element inner pipe is provided with an inner container filter screen cylinder communicated with the water inlet pipe. A circle of butt joint grooves are formed in an outer cylinder of the filter element inner pipe at equal intervals, a drainage channel communicated with the interior of the filter element inner pipe is formed in the bottom face of the interior of each butt joint groove, and the edge of the bottom of the sealing disc is connected with a filter element outer layer filter screen strip; according to the utility model, a high-efficiency double-filtering system is provided. The filter element comprises an inner container filter screen cylinder and an outer layer filter screen strip, and a double filtering function is achieved. The filter screen cylinder of the inner container is used for preliminary filtration, and large particle impurities are removed; the melt filtered by the inner container filter screen cylinder flows into the gap between the filter element inner pipe and the sealing disc, and then is filtered for the second time through the outer layer filter screen strip, so that the filtering precision is obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of melt filtration, and particularly relates to a melt pre-filter element. Background Art

[0002] Melt filtration technology is widely used in plastic processing, chemical engineering, and the food and pharmaceutical industries to remove impurities in the melt to improve product quality and processing efficiency. The existing melt pre-filter elements mainly adopt a single filtration stage, and the melt is filtered through an internal filter screen. However, this technical solution has significant deficiencies, that is, the filtration accuracy is insufficient, resulting in the inability to effectively remove smaller particulate impurities during the processing. The design of a single filtration stage often cannot meet the high cleanliness standards, thereby affecting the subsequent processing process and product quality.

[0003] Therefore, we propose a melt pre-filter element. Content of the Utility Model

[0004] The utility model mainly solves the above-mentioned existing technical problems and provides a melt pre-filter element.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme. A melt pre-filter element includes a filter element inner tube and a sealing disc. The filter element inner tube and the sealing disc are detachably connected. A water inlet pipe is connected to the bottom of the filter element inner tube. An inner liner filter screen cylinder communicating with the water inlet pipe is arranged at the top of the filter element inner tube. A circle of docking grooves is equidistantly arranged on the outer cylinder of the filter element inner tube. A drainage channel communicating with the inside of the filter element inner tube is arranged on the inner bottom surface of each docking groove. A filter element outer layer filter screen strip inserted into the corresponding docking groove is connected to the bottom edge of the sealing disc.

[0006] Preferably, a waterproof ring is sleeved on the top of the filter element inner tube.

[0007] Preferably, a fixing component is arranged between the filter element inner tube and the sealing disc. The fixing component includes a first fixing bolt threadedly connected to the top of the sealing disc and a connection hole opened at the center of the top of the inner liner filter screen cylinder. A fixing hole threadedly connected to the first fixing bolt is arranged inside each connection hole.

[0008] Preferably, the filter element inner tube is a hollow cylinder at the top, and the cross-section of the sealing disc is adapted to the hollow part at the top of the filter element inner tube.

[0009] Preferably, a plurality of reinforcing rings are sleeved on the cylinder of the filter element inner tube. Each group of reinforcing rings is composed of hoop rings with a C-shaped structure. The adjacent ends of the two hoop rings are threadedly fixed by a second fixing bolt.

[0010] The utility model provides a melt pre-filter element, which has the following beneficial effects:

[0011] 1. Efficient dual filtration system: The design of this melt pre-filter element includes an inner filter mesh cylinder and an outer filter mesh strip, providing a dual filtration function. First, the aqueous solution enters the inner filter mesh cylinder inside the inner tube of the filter element through the water inlet pipe for preliminary filtration to remove larger particulate impurities. Then, the solution passing through the inner filter mesh cylinder flows into the gap between the inner tube of the filter element and the sealing disc, flows out along the drainage channel, and undergoes a second filtration through the outer filter mesh strip of the filter element. This dual filtration design effectively improves the filtration accuracy, ensures the cleanliness of the filtered aqueous solution, and reduces the pollution risk in subsequent processing.

[0012] 2. Convenient maintenance and cleaning: The structural design of this filter element makes maintenance and cleaning very simple. After filtration is completed, by removing the fixing components on the sealing disc, the sealing disc together with the outer filter mesh strip of the filter element can be pulled out from the inner tube of the filter element. In this way, impurities inside the inner filter mesh cylinder and the inner tube of the filter element can be quickly removed, achieving efficient cleaning. This design greatly simplifies the maintenance process, improves the usability and operation efficiency.

[0013] 3. Optimized fluid management: The drainage channel design on the inner tube of the filter element optimizes the drainage path of the water flow, reducing the decrease in filtration efficiency caused by uneven fluid distribution. When the aqueous solution flows out through the drainage channel, it comes into full contact with the outer filter mesh strip of the filter element on the sealing disc, ensuring a more uniform filtration process and effectively improving the overall filtration efficiency.

[0014] 4. Enhanced structural stability: Multiple groups of reinforcement rings are sleeved on the inner tube of the filter element. Each group of reinforcement rings consists of two C-shaped hoop rings and a second fixing bolt, providing additional support and stability. This reinforcement design prevents the filter element from deforming or being damaged during use, enhances the durability and stability of the filter element, and ensures long-term reliable performance.

[0015] 5. Waterproof design: The waterproof ring provided at the top of the inner tube of the filter element helps prevent the aqueous solution from leaking from the top, enhancing the overall sealing performance of the filter element. This design effectively avoids possible water leakage problems and improves the reliability and filtration effect of the filter element.

[0016] 6. Structured filter element connection method: The docking groove between the inner tube of the filter element and the sealing disc and the insertion design of the outer filter mesh strip of the filter element make the assembly and disassembly process of the filter element simpler and more accurate. Through this structured connection method, the tight fit of the filter element components can be ensured, reducing assembly errors, and improving the overall sealing performance and working stability of the filter element. Description of the Drawings

[0017] To more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are merely exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can also be derived based on the provided drawings.

[0018] The structures, ratios, sizes, etc. depicted in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have technical substance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed by the present utility model.

[0019] Figure 1 Schematic diagram of the installation of the filter element of the present utility model;

[0020] Figure 2 Exploded view of the filter element of the present utility model;

[0021] Figure 3 Internal half-sectional view of the filter element of the present utility model;

[0022] Figure 4 Schematic diagram of the connection between the outer filter screen strip and the sealing disc of the filter element of the present utility model

[0023] Figure 5 Three-dimensional schematic diagram of the inner tube of the filter element of the present utility model;

[0024] Figure 6 Schematic diagram of the fixed state of the inner tube of the filter element of the present utility model.

[0025] Legend description:

[0026] 1. Inner tube of the filter element; 101. Water inlet pipe; 102. Inner tank filter pipe; 103. Docking groove; 104. Drainage channel; 2. Sealing disc; 201. Outer filter screen strip of the filter element; 3. First fixing bolt; 301. Connection hole; 302. Fixing hole; 4. Reinforcing ring; 401. Hoop ring; 402. Second fixing bolt. Detailed implementation manners

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0028] Embodiment: A melt pre-filter element, as Figure 1 - Figure 6 shown, includes a filter element inner tube 1 and a sealing disk 2. The filter element inner tube 1 and the sealing disk 2 are detachably connected. A water inlet pipe 101 is connected to the bottom of the filter element inner tube 1. An inner tank filter net cylinder 102 communicating with the water inlet pipe 101 is arranged at the top of the filter element inner tube 1. A circle of docking grooves 103 are equidistantly arranged on the outer cylinder of the filter element inner tube 1. A drainage channel 104 communicating with the inside of the filter element inner tube 1 is arranged on the inner bottom surface of each docking groove 103. A filter element outer layer filter net strip 201 inserted into the corresponding docking groove 103 is connected to the bottom edge of the sealing disk 2.

[0029] Further, a waterproof ring 105 is sleeved on the top of the filter element inner tube 1.

[0030] Further, a fixing component is arranged between the filter element inner tube 1 and the sealing disk 2. The fixing component includes a first fixing bolt 3 threadedly connected to the top of the sealing disk 2 and a connection hole 301 opened at the center of the top of the inner tank filter net cylinder 102. A fixing hole 302 threadedly connected to the first fixing bolt 3 is arranged inside each connection hole 301.

[0031] Further, the filter element inner tube 1 is a hollow cylinder at the top, and the cross-section of the sealing disk 2 is adapted to the hollow part at the top of the filter element inner tube 1.

[0032] Further, a plurality of groups of reinforcing rings 4 are sleeved on the cylinder of the filter element inner tube 1. Each group of reinforcing rings 4 is composed of a hoop 401 with a C-shaped structure. The adjacent ends of the two hoops 401 are threadedly fixed by a second fixing bolt 402.

[0033] When the inner tube 1 of the filter element and the sealing disc 2 are docked and fixed through the fixing assembly, the external aqueous solution enters the inner liner filter mesh cylinder 102 inside the inner tube 1 of the filter element through the water inlet pipe 101 for preliminary filtration. The solution filtered by the inner liner filter mesh cylinder 102 flows into the gap between the inner tube 1 of the filter element and the sealing disc 2. At this time, the aqueous solution will flow outwards along the drainage channel 104 on the outer surface of the inner tube 1 of the filter element. When the aqueous solution passes through the drainage channel 104, it will be secondarily filtered by the outer filter mesh strip 201 of the filter element corresponding to the bottom of the sealing disc 2, and then flow outwards after the secondary filtration by the outer filter mesh strip 201 of the filter element, performing two-stage filtration on the aqueous solution entering the inner tube 1 of the filter element and the sealing disc 2.

[0034] Furthermore, after the filtration is completed, by removing the fixing assembly on the sealing disc 2, the sealing disc 2 can be driven to pull the outer filter mesh strip 201 of the filter element away from the inner tube 1 of the filter element. At this time, the filtered impurities inside the inner liner filter mesh cylinder 102 will flow outwards along the water inlet pipe 101, and the impurities in the gap between the inner tube 1 of the filter element and the inner liner filter mesh cylinder 102 will be pulled away from the top of the inner tube 1 of the filter element along with the sealing disc 2 and flow outwards from the hollow opening at the top of the inner tube 1 of the filter element or the drainage channel 104 on the outer cylinder of the inner tube 1 of the filter element. Flushing with water can quickly clean and remove the impurities inside the inner tube 1 of the filter element, and the disassembly, installation, and maintenance are convenient.

[0035] The working principle of the present utility model:

[0036] Efficient dual - filtration system: The design of this melt pre - filter element includes an inner liner filter mesh cylinder 102 and an outer filter mesh strip 201, providing a dual - filtration function. First, the aqueous solution enters the inner liner filter mesh cylinder 102 inside the inner tube 1 of the filter element through the water inlet pipe 101 for preliminary filtration to remove larger particulate impurities. Then, the solution passing through the inner liner filter mesh cylinder 102 flows into the gap between the inner tube 1 of the filter element and the sealing disc 2, flows out along the drainage channel 104, and is secondarily filtered by the outer filter mesh strip 201 of the filter element. This dual - filtration design effectively improves the filtration accuracy, ensures the cleanliness of the filtered aqueous solution, and reduces the pollution risk in subsequent processing.

[0037] Convenient maintenance and cleaning: The structural design of this filter element makes maintenance and cleaning very simple. After the filtration is completed, by removing the fixing assembly on the sealing disc 2, the sealing disc 2 together with the outer filter mesh strip 201 of the filter element can be pulled away from the inner tube 1 of the filter element. In this way, the impurities inside the inner liner filter mesh cylinder 102 and the inner tube 1 of the filter element can be quickly removed, realizing efficient cleaning. This design greatly simplifies the maintenance process and improves the usability and operation efficiency.

[0038] Optimized Fluid Management: The drainage channel 104 on the inner tube 1 of the filter element is designed to optimize the drainage path of the water flow, reducing the decline in filtration efficiency caused by uneven fluid distribution. When the aqueous solution flows out through the drainage channel 104, it makes full contact with the outer filter screen strips 201 on the sealing disk 2, ensuring a more uniform filtration process and effectively improving the overall filtration efficiency.

[0039] Enhanced Structural Stability: Multiple groups of reinforcement rings 4 are sleeved on the inner tube 1 of the filter element. Each group of reinforcement rings 4 consists of two C-shaped hoop rings 401 and a second fixing bolt 402, providing additional support and stability. This reinforcement design prevents the filter element from deforming or being damaged during use, enhances the durability and stability of the filter element, and ensures long-term reliable performance.

[0040] Waterproof Design: The waterproof ring 105 provided at the top of the inner tube 1 of the filter element helps prevent the aqueous solution from leaking from the top, enhancing the overall sealing performance of the filter element. This design effectively avoids possible water leakage problems and improves the reliability of the filter element during use and the filtration effect.

[0041] Structured Filter Element Connection Method: The docking groove 103 between the inner tube 1 of the filter element and the sealing disk 2 and the insertion design of the outer filter screen strips 201 of the filter element make the assembly and disassembly process of the filter element simpler and more precise. Through this structured connection method, the tight fit of the filter element assembly can be ensured, reducing assembly errors and improving the overall sealing performance and working stability of the filter element.

[0042] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A melt pre-filter element, characterized in that: It includes a filter element inner tube (1) and a sealing disc (2). The filter element inner tube (1) and the sealing disc (2) are detachably connected. A water inlet pipe (101) is connected to the bottom of the filter element inner tube (1). An inner tank filter screen cylinder (102) communicating with the water inlet pipe (101) is arranged at the top of the filter element inner tube (1). A circle of docking grooves (103) is equidistantly arranged on the outer cylinder of the filter element inner tube (1). A drainage channel (104) communicating with the inside of the filter element inner tube (1) is arranged on the inner bottom surface of each docking groove (103). A filter element outer layer filter screen strip (201) inserted into the corresponding docking groove (103) is connected to the bottom edge of the sealing disc (2).

2. The melt pre-filter element according to claim 1, characterized in that: A waterproof ring (105) is sleeved on the top of the filter element inner tube (1).

3. The melt pre-filter element according to claim 1, characterized in that: A fixing component is arranged between the filter element inner tube (1) and the sealing disc (2). The fixing component includes a first fixing bolt (3) threadedly connected to the top of the sealing disc (2) and a connection hole (301) opened at the center of the top of the inner tank filter screen cylinder (102). A fixing hole (302) threadedly connected to the first fixing bolt (3) is arranged inside each connection hole (301).

4. A melt pre-filter cartridge according to claim 1, characterized in that: The filter element inner tube (1) is a cylindrical shape with a hollow top. The cross-section of the sealing disc (2) is adapted to the hollow part at the top of the filter element inner tube (1).

5. A melt pre-filter cartridge according to claim 1, characterized in that: Multiple groups of reinforcing rings (4) are sleeved on the cylinder of the filter element inner tube (1). Each group of reinforcing rings (4) is composed of a hoop (401) with a C-shaped structure. The adjacent ends of the two hoops (401) are threadedly fixed by arranging a second fixing bolt (402).

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