Melt filter element capable of preventing impact of large-particle impurities

Abstract

The utility model discloses a melt filter element capable of preventing impact of large-particle impurities, which comprises a filter element main body, the bottom end of the filter element main body is closed, and the top end of the filter element main body is connected with a liquid inlet pipe; the liquid inlet pipe is sleeved with a slag removal pipe, the liquid inlet pipe is in a cylindrical shape, and the slag removal pipe is in a big-end-up circular truncated cone shape. The upper and lower end parts of the deslagging pipe are respectively hermetically connected to the outer side walls of the upper and lower end parts of the liquid inlet pipe; a gap is formed between the middle part of the deslagging pipe and the outer side wall of the liquid inlet pipe; the top of the slag removal pipe is connected with a feeding pipe, the feeding pipe is horizontally and tangentially arranged on one side of the slag removal pipe, and the bottom of the slag removal pipe is connected with a discharging pipe; a plurality of liquid inlets are formed in the top of the liquid inlet pipe and located below the feeding pipe. The utility model not only can reduce the impact of large-particle impurities and prolong the service life of equipment, but also has the advantages of higher liquid inlet stability and more convenience in disassembly and maintenance.

Description

Technical Field

[0001] The utility model relates to the field of melt filter cores, in particular to a melt filter core capable of preventing impact of large particle impurities. Background Art

[0002] The melt filter element is mainly cylindrical, and its wall is composed of multiple layers of stainless steel sintered mesh. It has good high temperature resistance while achieving filtration and can be used for a variety of liquid filtration.

[0003] When a common melt filter element is in use, the liquid to be filtered needs to be directly fed into the melt filter element for filtration; some large particle impurities in the filtered liquid have greater kinetic energy under high-speed flow conditions, and are easily directly impacted on the filter screen of the melt filter element, causing damage to the filter screen, thereby affecting the service life of the melt filter element. To this end, ZL202223283700.5 discloses a melt filter element, which is connected to a filter element body with a filter structure, and a perforated filter disc for intercepting large particle impurities is provided in the filter structure, thereby preventing large particle impurities from damaging the melt filter element. However, when such a melt filter element is in use, large particle impurities will still impact and damage the perforated filter disc in the filter structure, thereby reducing the service life of the overall structure.

[0004] Therefore, the existing melt filter element has the problem of being easily impacted by large particle impurities, resulting in a shorter overall service life. Utility Model Content

[0005] The utility model aims to provide a melt filter element which can prevent the impact of large particle impurities. The utility model has the advantages of being able to reduce the impact of large particle impurities and having a long service life.

[0006] The technical solution of the utility model is as follows: a melt filter element capable of preventing the impact of large particle impurities comprises a filter element main body, the bottom end of the filter element main body is closed, and the top end of the filter element main body is connected with a liquid inlet pipe; a slag removal pipe is arranged outside the liquid inlet pipe, the liquid inlet pipe is cylindrical, and the slag removal pipe is truncated cone-shaped with a larger upper part and a smaller lower part; the upper and lower ends of the slag removal pipe are respectively sealed and connected to the outer side walls of the upper and lower ends of the liquid inlet pipe, and a gap is provided between the middle part of the slag removal pipe and the outer side wall of the liquid inlet pipe; the top of the slag removal pipe is connected with a feed pipe, the feed pipe is horizontally and tangentially arranged on one side of the slag removal pipe, and the bottom of the slag removal pipe is connected with a discharge pipe; a plurality of liquid inlets are provided on the top of the liquid inlet pipe, and all the liquid inlets are located below the feed pipe.

[0007] In the aforementioned melt filter element capable of preventing impact of large particle impurities, all the liquid inlets at the top of the liquid inlet pipe are distributed in a spiral shape.

[0008] In the aforementioned melt filter element capable of preventing impact of large particle impurities, the liquid inlet is arranged in a vertical strip shape.

[0009] In the aforementioned melt filter element capable of preventing impact of large particle impurities, a guide groove is provided on one side of the liquid inlet.

[0010] In the aforementioned melt filter element capable of preventing impact of large particle impurities, the liquid inlet pipe is connected to the filter element body via a flange.

[0011] In the aforementioned melt filter element capable of preventing impact of large particle impurities, the bottom end of the liquid inlet pipe is located inside the filter element body.

[0012] Compared with the prior art, the utility model has a liquid inlet pipe connected to the top of the filter element body, and a slag removal pipe is arranged at intervals outside the liquid inlet pipe, and a feed pipe arranged horizontally tangentially is connected to the top of the slag removal pipe; after the feed pipe sprays the liquid material into the slag removal pipe, it can flow downward in a spiral shape (because the liquid inlet pipe is cylindrical and the slag removal pipe is a truncated cone with a larger top and a smaller bottom, the gap between the liquid inlet pipe and the slag removal pipe decreases from top to bottom, and after the liquid material flows downward, it can still maintain a relatively high rotational flow rate), under the action of centrifugal force, large particles of impurities will be thrown outward, while liquid materials with less impurities can enter the liquid inlet pipe from multiple liquid inlets at the top of the liquid inlet pipe and be sent into the filter element body, which can prevent large particles of impurities from directly impacting the filter screen, thereby extending the overall service life.

[0013] In addition, all the liquid inlets at the top of the liquid inlet pipe in the utility model are distributed in a spiral shape, which is conducive to the liquid with less internal impurities entering the liquid inlet pipe when the liquid material flows in a spiral shape; the liquid inlet is arranged in a vertical strip shape, further preventing large particles of impurities from entering the liquid inlet pipe from the liquid inlet; and the guide groove on one side of the liquid inlet is located on the incoming liquid side, which can increase the liquid inlet amount of the liquid inlet pipe.

[0014] The bottom of the liquid inlet pipe extends into the filter element body, and the liquid inlet stability is relatively high; and the liquid inlet pipe and the filter element body are connected by a flange, which is convenient for disassembly and maintenance operations.

[0015] Therefore, the utility model can not only reduce the impact of large particle impurities and extend the service life of the equipment, but also has the advantages of high liquid inlet stability and convenient disassembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the liquid inlet pipe and the slag removal pipe;

[0018] Figure 3 It is a schematic diagram of the structure at the top of the liquid inlet pipe.

[0019] The markings in the attached drawings are: 1-filter element body, 2-liquid inlet pipe, 3-slag removal pipe, 4-gap, 5-feed pipe, 6-discharge pipe, 7-liquid inlet, 8-guide groove, 9-flange. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0021] Embodiment. A melt filter element capable of preventing the impact of large particle impurities is composed of Figures 1 to 3 As shown, it includes a filter element body 1, the bottom end of the filter element body 1 is closed, and the top end of the filter element body 1 is connected to a liquid inlet pipe 2; a slag removal pipe 3 is arranged outside the liquid inlet pipe 2, the liquid inlet pipe 2 is cylindrical, and the slag removal pipe 3 is a truncated cone with a larger upper part and a smaller lower part; the upper and lower ends of the slag removal pipe 3 are respectively sealed and connected to the outer side walls of the upper and lower ends of the liquid inlet pipe 2, and a gap 4 is provided between the middle part of the slag removal pipe 3 and the outer side wall of the liquid inlet pipe 2; the top of the slag removal pipe 3 is connected to a feed pipe 5, and the feed pipe 5 is horizontally and tangentially arranged on one side of the slag removal pipe 3, and the bottom of the slag removal pipe 3 is connected to a discharge pipe 6; a plurality of liquid inlets 7 are provided on the top of the liquid inlet pipe 2, and all the liquid inlets 7 are located below the feed pipe 5.

[0022] All the liquid inlets 7 on the top of the liquid inlet pipe 2 are distributed in a spiral shape; the liquid inlet 7 is arranged in a vertical strip shape; a guide groove 8 is provided on one side of the liquid inlet 7; the liquid inlet pipe 2 is connected to the filter element body 1 through a flange 9; the bottom end of the liquid inlet pipe 2 is located in the filter element body 1.

[0023] Working principle: liquid material is sprayed in from the feed pipe 5. Since the feed pipe 5 is horizontally tangentially connected to the top of the slag removal pipe 3, the liquid material can flow in a spiral shape in the gap 4 between the liquid inlet pipe 2 and the slag removal pipe 3 after entering the slag removal pipe 3; since the slag removal pipe 3 is in the shape of a truncated cone with a larger top and a smaller bottom, and the liquid inlet pipe 2 is arranged in a cylindrical shape, the liquid material can still maintain a certain flow rate in a spiral shape during the downward flow, so that large particles of impurities in the liquid material can move outward under the action of centrifugal force, and the liquid material with less impurities in the middle can enter the liquid inlet 7 through the multiple liquid inlets 7 spirally distributed on the liquid inlet pipe 2, and be sent to the filter element main body 1 for re-filtration; the liquid material that does not flow into the liquid inlet pipe 2 is finally discharged from the discharge pipe 6 at the bottom end of the slag removal pipe 3, and can be sent back to the feed pipe 5 after a certain sedimentation treatment, thereby improving the utilization rate of the liquid material.

[0024] Since the liquid inlet 7 on the liquid inlet pipe 2 is arranged in a vertical strip shape, large particle impurities larger than the width of the liquid inlet can be filtered to enter the liquid inlet pipe 2; a guide groove 8 is provided on the liquid inlet 7 on the side corresponding to the incoming liquid, which can enable the liquid material located in the middle to enter the liquid inlet pipe 2 better when the liquid material flows in a spiral shape.

[0025] The bottom of the liquid inlet pipe 2 extends into the filter element body 1, and the liquid inlet stability is relatively high; and the liquid inlet pipe 2 and the filter element body 1 are connected by a flange 9, and the connection stability is relatively high and can be disassembled for maintenance.

Claims

1. A melt filter element capable of preventing the impact of large particle impurities, comprising a filter element body (1), the bottom end of the filter element body (1) is closed, and the top end of the filter element body (1) is connected to a liquid inlet pipe (2); characterized in that: The liquid inlet pipe (2) is provided with a slag removal pipe (3) on its outer sleeve. The liquid inlet pipe (2) is cylindrical and the slag removal pipe (3) is truncated cone-shaped with a larger upper portion and a smaller lower portion. The upper and lower ends of the slag removal pipe (3) are respectively sealed and connected to the outer side walls of the upper and lower ends of the liquid inlet pipe (2). A gap (4) is provided between the middle of the slag removal pipe (3) and the outer side wall of the liquid inlet pipe (2). The top of the slag removal pipe (3) is connected to a feed pipe (5). The feed pipe (5) is horizontally and tangentially arranged on one side of the slag removal pipe (3). The bottom of the slag removal pipe (3) is connected to a discharge pipe (6). The top of the liquid inlet pipe (2) is provided with a plurality of liquid inlets (7), and all the liquid inlets (7) are located below the feed pipe (5).

2. A melt filter element capable of preventing impact of large particle impurities according to claim 1, characterized in that: All the liquid inlets (7) at the top of the liquid inlet pipe (2) are distributed in a spiral shape.

3. The melt filter element capable of preventing the impact of large particle impurities according to claim 1 is characterized in that: The liquid inlet (7) is arranged in a vertical strip shape.

4. A melt filter element capable of preventing impact of large particle impurities according to claim 3, characterized in that: A guide groove (8) is provided on one side of the liquid inlet (7).

5. The melt filter element capable of preventing the impact of large particle impurities according to claim 1 is characterized in that: The liquid inlet pipe (2) is connected to the filter element body (1) via a flange (9).

6. The melt filter element capable of preventing the impact of large particle impurities according to claim 5 is characterized in that: The bottom end of the liquid inlet pipe (2) is located inside the filter element body (1).

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