Melt filter

Abstract

The utility model relates to the technical field of melt filtering, in particular to a melt filter which is provided with a filtering chamber, the filtering chamber comprises an upper end cover, a barrel and a lower end cover, a feeding port is formed in the lower end cover, a discharging port is formed in the upper end cover, a heat exchange jacket is arranged outside the filtering chamber, and an inlet flange and an outlet flange are arranged on the heat exchange jacket; the filter chamber is provided with two mounting slideways, the inlet flange and the outlet flange are respectively arranged in the mounting slideways, the inlet flange and the outlet flange can reciprocate along the mounting slideways, the mounting slideways are arranged, so that the filter chamber is simple and quick to mount and dismount, and the downtime and the maintenance cost are reduced; due to the design of the mounting slide way, the stability of the filter chamber in the mounting process can be ensured, untight sealing or damage caused by position deviation can be prevented, and accurate butt joint of the feeding hole and the feeding flange can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of melt filtration, in particular to a melt filter. Background Art

[0002] The melt filter is the core equipment in the production of high molecular polymers. Through the carefully designed filter element group inside, it can effectively intercept and remove impurities, particles and gel particles in the material under high-temperature molten state to ensure the high purity of the melt. The melt enters from the feed pipe and flows through the surface of the filter element. Impurities are intercepted, while the pure melt continues to move forward and finally flows out from the discharge pipe.

[0003] In the design of the melt filter, the filter chamber and the heat medium jacket are two key components. The heat medium jacket is installed outside the filter chamber and maintains the temperature of the melt in the filter chamber stable by circulating heat medium (such as steam, hot water, etc.). The heat medium jacket is usually made of metal and has good thermal conductivity and sealing. Since the heat medium jacket is tightly wrapped around the outside of the filter chamber, the heat medium jacket needs to be removed before replacing the filter chamber. The disassembly process involves complex disassembly steps and tool use, which increases the complexity and time cost of the operation. When reinstalling the filter chamber, it is necessary to ensure the precise docking of the feed port and the feed flange. Due to errors in the installation process of the heat medium jacket, it is often difficult to ensure that the docking is completely accurate. Inaccurate docking between the feed port and the feed flange will directly affect the sealing effect. Summary of the invention

[0004] To solve the above problems, the present application provides a melt filter, which is provided with a filter chamber, the filter chamber comprising an upper end cover, a cylinder, and a lower end cover, the lower end cover is provided with a feed port, the upper end cover is provided with a discharge port, a heat exchange jacket is provided outside the filter chamber, the heat exchange jacket is provided with an inlet flange and an outlet flange, the inlet flange and the outlet flange partially protrude from the inner wall of the heat exchange jacket, two mounting slides are provided on the filter chamber, the inlet flange and the outlet flange are respectively placed in the mounting slides, and the inlet flange and the outlet flange can reciprocate along the mounting slides.

[0005] In one embodiment, the mounting slide is arranged along the axial direction of the filter chamber, and the mounting slide includes a first mounting slide and a second mounting slide, the outlet flange is placed in the first mounting slide, and the inlet flange is placed in the second mounting slide.

[0006] In one of the embodiments, an upper tightening device and a lower tightening device are respectively provided at the upper and lower ends of the heat exchange jacket, and the upper tightening device and the lower tightening device have the same structure. The upper tightening device includes a top screw mounting seat and a top screw, and the upper end cover is provided with a top screw positioning hole arranged opposite to the top screw.

[0007] In one embodiment, a baffle is provided on the pressing plate, and sealing rings are provided on the feed port and the discharge port.

[0008] In one embodiment, anti-collision and wear-resistant strips are provided on both sides of the feed port.

[0009] The beneficial effects of the utility model are:

[0010] The present application discloses a melt filter, which is provided with a filter chamber, and the filter chamber includes an upper end cover, a cylinder, and a lower end cover. The lower end cover is provided with a feed port, and the upper end cover is provided with a discharge port. A heat exchange jacket is provided outside the filter chamber, and an inlet flange and an outlet flange are provided on the heat exchange jacket. Two mounting slides are provided on the filter chamber, and the inlet flange and the outlet flange are respectively placed in the mounting slides, and the inlet flange and the outlet flange can reciprocate along the mounting slides. The installation slides make the installation and disassembly of the filter chamber simple and quick, reducing downtime and maintenance costs; the design of the installation slides helps to ensure the stability of the filter chamber during the installation process, prevent poor sealing or damage caused by position offset, and ensure the precise docking of the feed port and the feed flange. By providing a heat exchange jacket, when the filter element needs to be cleaned or replaced, the filter chamber can be replaced without disassembling the heat medium, avoiding the cumbersome heat medium treatment and potential safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 Schematic diagram of the filter chamber structure Figure 1 ;

[0012] Figure 2 Schematic diagram of the filter chamber structure Figure 2 ;

[0013] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0014] Figure 4 This is a bottom view of the filter chamber;

[0015] Figure 5 It is the front view of the heat exchange jacket;

[0016] Figure 6 Schematic diagram of the heat exchange jacket structure Figure 1 ;

[0017] Figure 7 Schematic diagram of the heat exchange jacket structure Figure 2 ;

[0018] Explanation of symbols in the figure:

[0019] 1. Filter chamber; 11. Upper end cover; 12. Cylinder; 13. Lower end cover;

[0020] 14. Mounting slideway; 141. First mounting slideway; 142. Second mounting slideway;

[0021] 2. Feed inlet;

[0022] 3. Discharge port;

[0023] 4. Heat exchange jacket;

[0024] 41. Imported flange;

[0025] 42. Outlet flange;

[0026] 43. Upper tightening device; 431. Top screw mounting seat; 432. Top screw; 433. Top screw positioning hole;

[0027] 44. Lower tightening device;

[0028] 5. Sealing ring;

[0029] 6. Anti-collision and wear-resistant strips. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0031] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] like Figure 1-7 As shown, a melt filter is provided with a filter chamber 1, the filter chamber 1 includes an upper end cover 11, a cylinder 12, and a lower end cover 13, the lower end cover 13 is provided with a feed port 2, the upper end cover 11 is provided with a discharge port 3, a heat exchange jacket 4 is provided outside the filter chamber 1, the heat exchange jacket 4 is provided with an inlet flange 41 and an outlet flange 42, the inlet flange 41 and the outlet flange 42 partially protrude from the inner wall of the heat exchange jacket 4, two mounting slides 14 are provided on the filter chamber 1, the inlet flange 41 and the outlet flange 42 are respectively placed in the mounting slides 14, and the inlet flange 41 and the outlet flange 42 can reciprocate along the mounting slides 14.

[0033] Specifically, the heat medium is installed on the heat exchange jacket 4, and the heat exchange jacket 4 plays the role of transferring heat. During the installation or disassembly process, the inlet flange 41 and the outlet flange 42 are placed in the installation slide 14 on the filter chamber 1. Since the inlet flange 41 and the outlet flange 42 partially protrude from the inner wall of the heat exchange jacket 4, they can only move up and down along the installation slide 14, but cannot move in other directions. This design allows that when installing or disassembling, only the inlet flange 41 and the outlet flange 42 need to be slid along the installation slide 14 to a suitable position, so as to achieve rapid alignment and connection with the feed port 2 and the discharge port 3 of the filter chamber, which greatly simplifies the operation process. When the filter element needs to be cleaned or replaced, the filter chamber 1 can be easily disassembled by moving the inlet flange 41 and the outlet flange 42 without completely removing the heat exchange jacket, thereby simplifying the maintenance process. When in use, the melt enters the barrel 12 of the filter chamber 1 through the feed port 2 set on the lower end cover 13. The melt is filtered by the filter element in the barrel 12 to remove impurities and particulate matter therein. The heat medium is installed on the heat exchange jacket 4, which transfers the temperature to the filter chamber 1 and exchanges heat with the cylinder 12 of the filter chamber 1, thereby adjusting the temperature of the melt. The melt after filtration and temperature adjustment flows out of the filter chamber 1 through the discharge port 3 set on the upper end cover 11 and enters the next process. The installation slide 14 makes the installation and removal of the filter chamber 1 simple and quick, reducing downtime and maintenance costs; the design of the installation slide 14 helps to ensure the stability of the filter chamber 1 during installation, prevents poor sealing or damage caused by position offset, and ensures the precise docking of the feed port and the feed flange. By setting the heat exchange jacket 4, when the filter element needs to be cleaned or replaced, the filter chamber 1 can be replaced without removing the heat medium, avoiding the cumbersome heat medium treatment and potential safety risks.

[0034] like Figure 1 , 3 As shown in FIG. 4 , the mounting slide 14 is arranged along the axial direction of the filter chamber 1 , and the mounting slide 14 includes a first mounting slide 141 and a second mounting slide 142 . The outlet flange 42 is placed in the first mounting slide 141 , and the inlet flange 41 is placed in the second mounting slide 142 .

[0035] Specifically, since the outlet flange 42 is located at the upper end of the heat exchange jacket 4 and the inlet flange 41 is located at the bottom end of the heat exchange jacket 4, the length of the first installation slide 141 is longer than the length of the second installation slide 142. This length difference is determined based on the relative positions of the inlet flange 41 and the outlet flange 42 on the heat exchange jacket 1, and is intended to provide sufficient moving space and ensure that the staff can install it correctly at one time during the installation process.

[0036] like Figure 2 , 5As shown, the upper and lower ends of the heat exchange jacket 4 are respectively provided with an upper tightening device 43 and a lower tightening device 44, the upper tightening device 43 and the lower tightening device 44 have the same structure, the upper tightening device 43 includes a top screw mounting seat 431 and a top screw 432, and the upper end cover 11 is provided with a top screw positioning hole 433 arranged opposite to the top screw 432.

[0037] Specifically, when the filter chamber 1 is installed in the heat exchange jacket 4 and adjusted to a suitable position, the operator rotates the top screw 432 until the end of the top screw 432 passes through the top screw mounting seat 431 and extends into the top screw positioning hole 433 of the upper end cover 11 of the filter chamber 1. As the top screw 432 continues to rotate and penetrate, a close contact is formed between the filter chamber 1 and the heat exchange jacket 4, which plays a positioning role. When the filter chamber 1 needs to be disassembled or replaced, the operator rotates the top screw 432 in the opposite direction to gradually withdraw it from the top screw positioning hole 433, and the filter chamber 1 can easily slide out of the heat exchange jacket 4 along the installation slide 14.

[0038] like Figure 3 As shown, sealing rings 5 ​​are provided on the feed port 2 and the discharge port 3 .

[0039] Specifically, the sealing ring 5 is usually made of an elastic material (such as rubber, polyurethane or polymer, etc.) and has excellent sealing performance and corrosion resistance. By setting the sealing ring 5, the inlet flange 41 is tightly installed in the feed port 2, and the outlet flange 42 is tightly installed in the discharge port 3. When the melt enters the filter chamber 1 through the feed port 2, or flows out from the discharge port 3 after filtration, the sealing ring 5 can fit tightly on the edges of the feed port 2 and the discharge port 3, forming an effective sealing barrier to prevent the melt from leaking.

[0040] like Figure 3 As shown, anti-collision and wear-resistant strips 6 are arranged on both sides of the feed port 2.

[0041] Specifically, during the installation of the filter chamber 1, the inlet flange 41 is prone to hit and wear the sealing ring 5 in the feed port 2, so anti-collision and wear-resistant strips 6 are provided on both sides of the feed port 2. During the installation, commissioning or routine maintenance of the filter, if an accidental collision or scratch occurs, the anti-collision and wear-resistant strips 6 can absorb and disperse the impact force, protect the sealing ring 5 in the feed port 2 from damage, and reduce the risk of melt leakage.

[0042] The present application discloses a melt filter, which is provided with a filter chamber 1, wherein the filter chamber 1 comprises an upper end cover 11, a cylinder 12, and a lower end cover 13, wherein the lower end cover 13 is provided with a feed port 2, and the upper end cover 11 is provided with a discharge port 3, wherein a heat exchange jacket 4 is provided outside the filter chamber 1, wherein the heat exchange jacket 4 is provided with an inlet flange 41 and an outlet flange 42, wherein two mounting slideways 14 are provided on the filter chamber 1, wherein the inlet flange 41 and the outlet flange 42 are respectively placed in the mounting slideways 14, wherein the inlet flange 41 and the outlet flange 42 can move up and down along the mounting slideways 14, and wherein the mounting slideways 14 are provided with a plurality of mounting guideways 14, wherein the plurality of mounting guide ... The mounting slide 14 makes the installation and disassembly of the filter chamber 1 simple and quick, reducing downtime and maintenance costs; the design of the mounting slide 14 helps to ensure the stability of the filter chamber 1 during the installation process, prevents poor sealing or damage due to position deviation, and ensures the precise docking between the feed port and the feed flange. By setting the heat exchange jacket 4, when the filter element needs to be cleaned or replaced, the filter chamber 1 can be replaced without removing the heat medium, avoiding the tedious heat medium handling and potential safety risks; by setting the sealing ring 5, the inlet flange 41 is tightly installed in the feed port 2, and the outlet flange 42 is tightly installed in the outlet port 3.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A melt filter, comprising a filter chamber (1), the filter chamber (1) comprising an upper end cover (11), a cylinder (12), and a lower end cover (13), the lower end cover (13) being provided with a feed port (2), the upper end cover (11) being provided with a discharge port (3), the filter chamber (1) being provided with a heat exchange jacket (4) outside, the heat exchange jacket (4) being provided with an inlet flange (41) and an outlet flange (42), characterized in that: The inlet flange (41) and the outlet flange (42) partially protrude from the inner wall of the heat exchange jacket (4); two mounting slideways (14) are provided on the filter chamber (1); the inlet flange (41) and the outlet flange (42) are respectively placed in the mounting slideways (14); and the inlet flange (41) and the outlet flange (42) can reciprocate along the mounting slideways (14).

2. A melt filter according to claim 1, characterized in that: The mounting slide (14) is arranged along the axial direction of the filter chamber (1), and the mounting slide (14) comprises a first mounting slide (141) and a second mounting slide (142), the outlet flange (42) is arranged in the first mounting slide (141), and the inlet flange (41) is arranged in the second mounting slide (142).

3. A melt filter according to claim 1, characterized in that: An upper tightening device (43) and a lower tightening device (44) are respectively provided at the upper and lower ends of the heat exchange jacket (4); the upper tightening device (43) and the lower tightening device (44) have the same structure; the upper tightening device (43) comprises a screw mounting seat (431) and a screw (432); and a screw positioning hole (433) arranged opposite to the screw (432) is provided on the upper end cover (11).

4. A melt filter according to claim 1, characterized in that: The feed port (2) and the discharge port (3) are both provided with sealing rings (5).

5. A melt filter according to claim 1, characterized in that: Anti-collision and wear-resistant strips (6) are arranged on both sides of the feed opening (2).

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