Horizontal filter

Abstract

The utility model provides a horizontal filter. The horizontal filter comprises a base; the barrel is horizontally arranged on the base and used for containing liquid, one end of the barrel is connected with a liquid inlet pipe, the other end of the barrel is provided with a detachably connected blind plate, the side wall of the barrel is connected with a liquid outlet pipe, and the liquid inlet pipe and the liquid outlet pipe are perpendicular to each other; a first annular baffle and a second annular baffle are arranged in the barrel in the axial direction in a spaced mode, and the liquid outlet pipe is located between the first baffle and the second baffle. And the tubular filter screen is installed in the cylinder and located between the first baffle and the second baffle, one end of the tubular filter screen is opposite to the liquid inlet pipe, the side face of the tubular filter screen is opposite to the liquid outlet pipe, and the other end of the tubular filter screen and the blind plate are arranged in a spaced mode. The horizontal filter provided by the utility model is simple in structure, convenient to manufacture, good in filtering effect, convenient to clean, good in stability and long in service life.

Description

Technical Field

[0001] The present application relates to the field of filtering technology, and in particular to a horizontal filter. Background Art

[0002] In the decomposition process of alumina seeds, wide channel welded plate heat exchangers are used. In order to ensure the safe operation of the heat exchanger, filters need to be configured. The filter is mainly composed of feed pipes, discharge pipes, cylinders, filter elements, sewage outlets, flanges, blind plates and supports. It is installed on the pipeline to remove large solid impurities in the liquid, so that mechanical equipment and instruments can operate normally, stabilize the production process, and ensure safe production.

[0003] At present, the pre-filters of wide-channel welded plate heat exchangers are mostly vertical filters with basket-type filter elements. As the material processing volume increases, the filters are designed to be taller and taller, and the size of the basket filter element will also increase. Cleaning the filter residue has become a high-altitude operation, which is time-consuming and laborious. After shutdown, alumina slurry will form a large amount of scars and adhere to the bottom of the basket filter element, which is difficult to clean and reduces the filtering effect. In addition, the liquid in the existing filter structure will directly impact the filter element, causing serious abrasion and affecting the filtering effect. Therefore, a filter that is easy to clean and has a good filtering effect is urgently needed. Utility Model Content

[0004] In view of this, the purpose of the present application is to propose a horizontal filter to solve the related problems mentioned in the background technology.

[0005] Based on the above-mentioned purpose, the present application provides a horizontal filter, including: a base, used to be fixed on a working surface; a cylinder, horizontally arranged on the base, used to contain liquid, one end of the cylinder is connected to a liquid inlet pipe, and the other end is provided with a detachably connected blind plate, the side wall of the cylinder is connected to a liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe are arranged perpendicular to each other, the interior of the cylinder is axially spaced apart with an annular first baffle and a second baffle, and the liquid outlet pipe is located between the first baffle and the second baffle; a tubular filter screen is installed in the cylinder and is located between the first baffle and the second baffle, one end of the tubular filter screen is opposite to the liquid inlet pipe, the side surface is opposite to the liquid outlet pipe, and the other end is spaced apart from the blind plate.

[0006] Furthermore, a concentric reducer is connected between the liquid inlet pipe and the cylinder, and the diameter of the concentric reducer gradually increases along the direction from the liquid inlet pipe to the cylinder. The end of the tubular filter close to the liquid inlet pipe is against the first baffle, and the aperture of the first baffle is equal to the diameter of the liquid inlet pipe.

[0007] Furthermore, a guide tube is connected to the middle of the first baffle, and the guide tube passes through the first baffle.

[0008] Further, an annular connecting plate is provided on the outer side of one end of the tubular filter net close to the blind plate, and the connecting plate abuts against one side of the second baffle close to the blind plate.

[0009] Further, a handle is provided on one side of the connecting plate away from the second baffle, and the handle abuts against the blind plate.

[0010] Further, a guide rail is connected between the first baffle and the second baffle, and the guide rail is located below the tubular filter net.

[0011] Further, the included angle between the axial direction of the tubular filter net and the axial direction of the cylinder body is 0° to 10°.

[0012] Further, the axial directions of the liquid inlet pipe and the liquid outlet pipe are located on the same horizontal plane.

[0013] Further, the wall thickness of the liquid outlet pipe is greater than the wall thickness of the liquid inlet pipe.

[0014] Further, a liquid discharge port and a slag discharge port are provided at the bottom of the side wall of the cylinder body. The liquid discharge port is located between the first baffle and the second baffle, and the slag discharge port is located between the blind plate and the second baffle. The diameter of the liquid discharge port is less than or equal to the diameter of the slag discharge port.

[0015] As can be seen from the above, the horizontal filter provided in this application includes: a base; a cylinder body, horizontally arranged on the base for containing liquid. One end of the cylinder body is connected with a liquid inlet pipe, and the other end is provided with a detachable blind plate. The side wall of the cylinder body is connected with a liquid outlet pipe. The liquid inlet pipe and the liquid outlet pipe are arranged perpendicular to each other. Annular first baffles and second baffles are arranged at intervals along the axial direction inside the cylinder body, and the liquid outlet pipe is located between the first baffle and the second baffle; a tubular filter net, installed inside the cylinder body, located between the first baffle and the second baffle. One end of the tubular filter net faces the liquid inlet pipe, the side faces the liquid outlet pipe, and the other end is arranged at an interval from the blind plate: The horizontal filter has a low height, avoiding high-altitude operations, and a detachable blind plate is provided for convenient cleaning and maintenance; The liquid enters the cylinder body from the liquid inlet pipe and flows along the tubular filter net, avoiding direct scouring and corrosion of the filter net. The filtered liquid is discharged from the liquid outlet pipe on the side wall of the cylinder body, while the filter residue is impacted along the side wall of the tubular filter net to one side of the cylinder body close to the blind plate, preventing the filter net from being blocked; This horizontal filter has a simple structure, is easy to manufacture, has a good filtering effect, is easy to clean, has good stability, and a long service life. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a horizontal filter in an embodiment of the present application;

[0018] Figure 2 For Figure 1 It is a cross-sectional structural schematic diagram of the horizontal filter in the middle;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of a tubular filter screen in an embodiment of the present application.

[0020] Reference numerals: 1, base; 2, cylinder; 2-1, liquid inlet pipe; 2-2, blind plate; 2-3, liquid outlet pipe; 2-4, first baffle; 2-5, second baffle; 2-6, concentric reducer; 2-7, guiding pipe; 2-8, liquid discharge port; 2-9, slag discharge port; 3, tubular filter screen; 3-1, connecting plate; 3-2, handle. Specific embodiments

[0021] To make the purpose, technical solutions and advantages of the present application clearer and more understandable, the following will further elaborate on the present application in combination with specific embodiments and with reference to the accompanying drawings.

[0022] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should have the ordinary meaning understood by those of ordinary skill in the art in the field to which this disclosure belongs. The "first", "second" and similar terms used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0023] In the decomposition process of alumina seeds, wide channel welded plate heat exchangers are used. In order to ensure the safe operation of the heat exchanger, filters need to be configured. The filter is mainly composed of feed pipes, discharge pipes, cylinders, filter elements, sewage outlets, flanges, blind plates and supports. It is installed on the pipeline to remove large solid impurities in the liquid, so that mechanical equipment and instruments can operate normally, stabilize the production process, and ensure safe production.

[0024] At present, the pre-filters of wide-channel welded plate heat exchangers are mostly vertical filters with basket-type filter elements. As the material processing volume increases, the filters are designed to be taller and taller, and the size of the basket filter element will also increase. Cleaning the filter residue has become a high-altitude operation, which is time-consuming and laborious. After shutdown, alumina slurry will form a large amount of scars and adhere to the bottom of the basket filter element, which is difficult to clean and reduces the filtering effect. In addition, the liquid in the existing filter structure will directly impact the filter element, causing serious abrasion and affecting the filtering effect. Therefore, a filter that is easy to clean and has a good filtering effect is urgently needed.

[0025] Patent CN 206715444 U discloses a horizontal self-cleaning pipe filter, which is mainly used in the field of agricultural irrigation technology. It is characterized by small liquid flow, large amount of slag or debris, and mainly solves the self-cleaning problem. However, it is easy to clog and abrade for the alumina industry to handle large flow and solid content of 30%. There is no removable blind plate at the rear end, which is inconvenient to replace the filter element. Patent CN 208990374 U discloses a pipe filter, the filter element of which is a basket structure, and only the part near the outlet has filter holes, the filtration area is relatively small, and the filter element cannot be effectively utilized; the filter element, the sewage outlet, and the cylinder are designed as one body, which is difficult to manufacture and inconvenient to replace the filter element; the liquid directly rushes into the filter element, which is easy to cause abrasion and damage the filter element.

[0026] Below, through specific embodiments and in combination with the attached Figures 1 to 3 The technical solution of this application is further described in detail.

[0027] In some embodiments of the present application, a horizontal filter is provided, such as Figure 1 and Figure 2As shown in the figure, it includes: a base 1; a cylinder 2, horizontally arranged on the base 1 for containing liquid. One end of the cylinder 2 is connected with a liquid inlet pipe 2-1, and the other end is provided with a detachably connected blind plate 2-2. The side wall of the cylinder 2 is connected with a liquid outlet pipe 2-3. The liquid inlet pipe 2-1 and the liquid outlet pipe 2-3 are arranged perpendicular to each other. Annular first baffle 2-4 and second baffle 2-5 are arranged at intervals along the axial direction inside the cylinder 2, and the liquid outlet pipe 2-3 is located between the first baffle 2-4 and the second baffle 2-5; a tubular filter screen 3 is installed inside the cylinder 2, located between the first baffle 2-4 and the second baffle 2-5. One end of the tubular filter screen 3 faces the liquid inlet pipe 2-1, the side faces the liquid outlet pipe 2-3, and the other end is arranged at an interval from the blind plate 2-2.

[0028] As Figure 1 shown, the horizontal filter includes a base 1, which plays a supporting role; a horizontal cylinder 2 is arranged on the base 1. The cylinder 2 is, for example, a cylindrical structure; a liquid inlet pipe 2-1 is connected to one end of the cylinder 2 for liquid to enter, and a detachably connected blind plate 2-2 is provided at the other end, for example, connected by bolts. A hinge can also be connected between the blind plate 2-2 and the cylinder 2 to achieve rotation, and a handle can also be provided on the blind plate 2-2. By providing the blind plate 2-2, it can be used as a maintenance opening to facilitate the loading and unloading of the tubular filter screen 3 for cleaning, replacement, etc.; a liquid outlet pipe 2-3 is connected to the side wall of the cylinder 2 for the filtered liquid to flow out; the tubular filter screen 3 is arranged inside the cylinder 2 for filtering.

[0029] As Figure 2 shown, annular first baffle 2-4 and second baffle 2-5 are arranged inside the cylinder 2, and the tubular filter screen 3 is arranged between the two baffles. One end faces the liquid inlet pipe 2-1, and the other end faces the blind plate 2-2. The liquid outlet pipe 2-3 and the liquid inlet pipe 2-1 are perpendicular to each other, and the liquid outlet pipe 2-3 is also located between the two baffles. In this way, a closed space is formed among the tubular filter screen 3, the cylinder 2 and the two baffles. Liquid enters the cylinder 2 from the liquid inlet pipe 2-1 and flows along the tubular filter screen 3, which can avoid direct scouring and abrasion of the filter screen. Moreover, the tubular filter screen 3 does not have a mesh bottom like a basket filter, which can reduce the abrasion of the filter screen, and the filter residue will not accumulate at the mesh bottom. The filtered liquid is discharged from the liquid outlet pipe 2-3 on the side wall of the cylinder 2, and the filter residue will not enter this closed space, ensuring the filtering effect. The filter residue is impacted along the side wall of the tubular filter screen 3 to the side of the cylinder 2 close to the blind plate 2-2, preventing the filter screen from being blocked.

[0030] This horizontal filter has a simple structure, is easy to manufacture, has a good filtering effect, is easy to clean, has good stability and a long service life.

[0031] In some embodiments, such as Figure 1 and Figure 2As shown, a concentric reducer 2-6 is connected between the liquid inlet pipe 2-1 and the cylinder body 2. The diameter of the concentric reducer 2-6 gradually increases in the direction from the liquid inlet pipe 2-1 to the cylinder body 2. One end of the tubular filter screen 3 close to the liquid inlet pipe 2-1 abuts against the first baffle 2-4, and the aperture of the first baffle 2-4 is equal to the diameter of the liquid inlet pipe 2-1.

[0032] As Figure 2 shown, a concentric reducer 2-6 is connected between the liquid inlet pipe 2-1 and the cylinder body 2, and the diameter gradually increases from left to right. The first baffle 2-4 is of an annular structure, and the aperture of the middle through hole is equal to the diameter of the liquid inlet pipe 2-1. The liquid inlet pipe 2-1, the concentric reducer 2-6 and the first baffle 2-4 form a structure similar to a Venturi structure. The flow space of the liquid changes from small to large and then to small, so that the velocity of the liquid entering the tubular filter screen 3 is greatly increased. Through numerical analysis, the liquid velocity at this place is approximately increased to twice the velocity at the liquid inlet pipe 2-1, which is more conducive to flushing the filter residue out of the filter screen, preventing blockage and ensuring the filtering effect; setting the aperture of the first baffle 2-4 equal to the diameter of the liquid inlet pipe 2-1 can avoid too large an aperture, reducing the liquid velocity and causing sedimentation of the filter residue; it can also avoid too small an aperture, resulting in too high a liquid velocity and abrasion of the filter screen.

[0033] In some embodiments, as Figure 2 shown, a guiding pipe 2-7 is connected to the middle of the first baffle 2-4, and the guiding pipe 2-7 penetrates through the first baffle 2-4.

[0034] A guiding pipe 2-7 is connected to the middle of the first baffle 2-4, and the guiding pipe 2-7 penetrates through the first baffle 2-4, which is convenient for guiding the liquid into the tubular filter screen 3. When the fluid passes through the first baffle 2-4, it will preferentially abrade the guiding pipe 2-7, reducing the abrasion of the first baffle 2-4.

[0035] In some embodiments, as Figure 2 and Figure 3 shown, an annular connecting plate 3-1 is provided on the outer side of one end of the tubular filter screen 3 close to the blind plate 2-2, and the connecting plate 3-1 abuts against one side of the second baffle 2-5 close to the blind plate 2-2.

[0036] As Figure 2As shown, the first baffle 2-4 and the second baffle 2-5 are both welded to the cylinder body 2. The hole in the second baffle 2-5 is slightly larger than the tubular filter screen 3, which facilitates the extraction of the filter screen for cleaning and replacement and plays a role in radially limiting the filter screen. The diameter of the guiding pipe 2-7 is slightly smaller than that of the tubular filter screen 3. The first baffle 2-4 plays an axial limiting role for the filter screen, and the guiding pipe 2-7 plays a radial limiting role for the filter screen. A connecting plate 3-1 is welded to the rear end of the tubular filter screen 3. The connecting plate 3-1 abuts against the second baffle 2-5, which can also play an axial limiting role. The diameter of the connecting plate 3-1 is smaller than that of the cylinder body 2, which facilitates the extraction of the filter screen.

[0037] In some embodiments, such as Figure 2 and Figure 3 as shown, a handle 3-2 is provided on the side of the connecting plate 3-1 away from the second baffle 2-5, and the handle 3-2 abuts against the blind plate 2-2.

[0038] Such as Figure 3 as shown, two C-shaped handles 3-2 are provided on the connecting plate 3-1. On the one hand, it facilitates the extraction of the tubular filter screen 3. On the other hand, it can play a positioning role. As Figure 2 as shown, the length of the handle 3-2 is slightly smaller than the distance between the second baffle 2-5 and the blind plate 2-2. One end of the handle 3-2 is fixed on the connecting plate 3-1, and the other end abuts against the blind plate 2-2 but is not connected, so that the connecting plate 3-1 can closely fit the second baffle 2-5, and the filter screen and the baffle are closely matched to avoid leakage.

[0039] In some embodiments, a guide rail is connected between the first baffle 2-4 and the second baffle 2-5, and the guide rail is located below the tubular filter screen 3.

[0040] A guide rail can be connected between the bottom ends of the two baffles. The number is, for example, two. The guide rail is, for example, a round steel guide rail. The guide rail abuts against the tubular filter screen 3, which can support the filter screen and play a guiding role during the disassembly and assembly of the filter screen, facilitating the disassembly and assembly.

[0041] In some embodiments, the included angle between the axis of the tubular filter screen 3 and the axis of the cylinder body 2 is 0° to 10°.

[0042] Such as Figure 2 as shown, the included angle between the axis of the tubular filter screen 3 and the axis of the cylinder body 2 is 0°, that is, the filter screen and the cylinder body 2 are parallel, which can reduce liquid impact and abrasion. The tubular filter screen 3 can also be inclined, with its rear end set lower in height than the front end. The inclination angle can be less than or equal to 10°, such as 1°, 5°, or 10°, etc. The specific value is not limited, which is more conducive to the filter residue flowing out of the filter screen and moving to the rear end of the cylinder body 2.

[0043] In some embodiments, such as Figure 1As shown, the axis of the liquid inlet pipe 2-1 and the axis of the liquid outlet pipe 2-3 are on the same horizontal plane, which is convenient for the overall pipeline layout.

[0044] In some embodiments, the wall thickness of the liquid outlet pipe 2-3 is greater than the wall thickness of the liquid inlet pipe 2-1.

[0045] An overall flow simulation analysis was carried out on the horizontal filter, and it was found that the flow velocity at the connection between the liquid outlet pipe 2-3 and the cylinder body 2 is relatively high, which is prone to cause abrasion. Therefore, the wall thickness of the liquid outlet pipe 2-3 can be thickened. For example, the wall thickness of the liquid outlet pipe 2-3 is set to be twice the wall thickness of the liquid inlet pipe 2-1 to reduce the impact of abrasion.

[0046] In some embodiments, as Figure 1 and Figure 2 shown, a liquid discharge port 2-8 and a slag discharge port 2-9 are provided at the bottom of the side wall of the cylinder body 2. The liquid discharge port 2-8 is located between the first baffle 2-4 and the second baffle 2-5, and the slag discharge port 2-9 is located between the blind plate 2-2 and the second baffle 2-5. The diameter of the liquid discharge port 2-8 is less than or equal to the diameter of the slag discharge port 2-9.

[0047] As Figure 2 shown, a liquid discharge port 2-8 and a slag discharge port 2-9 are provided at the bottom of the cylinder body 2. The liquid discharge port 2-8 is used to discharge excess liquid, and the slag discharge port 2-9 is used to discharge filter residues. An automatic discharge valve can be added to the liquid discharge port 2-8 and the slag discharge port 2-9 to automatically discharge materials after shutdown; the diameter of the liquid discharge port 2-8 can be smaller than the diameter of the slag discharge port 2-9 because there will be no large debris in the liquid discharged from the liquid discharge port 2-8, while the size of the filter residues discharged from the slag discharge port 2-9 is large and the quantity accumulates, which is convenient for the discharge of debris.

[0048] Those of ordinary skill in the art should understand that the discussion of any above embodiment is only exemplary, and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples; under the concept of this application, the technical features between the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present application as described above, which are not provided in detail for the sake of brevity.

[0049] The embodiments of the present application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A horizontal filter, characterized in that, Comprising: Base; A cylindrical body, horizontally arranged on the base for containing liquid. One end of the cylindrical body is connected with a liquid inlet pipe, and the other end is provided with a blind plate detachably connected thereto. A liquid outlet pipe is connected to the side wall of the cylindrical body. The liquid inlet pipe and the liquid outlet pipe are arranged perpendicular to each other. Annular first baffle and second baffle are arranged at intervals along the axial direction inside the cylindrical body, and the liquid outlet pipe is located between the first baffle and the second baffle; A tubular filter screen, installed inside the cylindrical body, between the first baffle and the second baffle. One end of the tubular filter screen faces the liquid inlet pipe, the side faces the liquid outlet pipe, and the other end is arranged at an interval from the blind plate.

2. The horizontal filter according to claim 1, characterized in that, A concentric reducer is connected between the liquid inlet pipe and the cylindrical body. The diameter of the concentric reducer gradually increases along the direction from the liquid inlet pipe to the cylindrical body. One end of the tubular filter screen close to the liquid inlet pipe abuts against the first baffle, and the aperture diameter of the first baffle is equal to the diameter of the liquid inlet pipe.

3. The horizontal filter according to claim 2, wherein, A guiding pipe is connected to the middle of the first baffle, and the guiding pipe penetrates through the first baffle.

4. The horizontal filter according to claim 2, characterized in that, An annular connecting plate is arranged on the outer side of one end of the tubular filter screen close to the blind plate, and the connecting plate abuts against one side of the second baffle close to the blind plate.

5. The horizontal filter according to claim 4, characterized in that A handle is arranged on one side of the connecting plate away from the second baffle, and the handle abuts against the blind plate.

6. The horizontal filter according to claim 1, wherein A guide rail is connected between the first baffle and the second baffle, and the guide rail is located below the tubular filter screen.

7. The horizontal filter according to claim 1, characterized in that, The included angle between the axial direction of the tubular filter screen and the axial direction of the cylindrical body is 0° to 10°.

8. The horizontal filter according to claim 1, characterized in that The axial directions of the liquid inlet pipe and the liquid outlet pipe are on the same horizontal plane.

9. The horizontal filter according to claim 1, characterized in that, The wall thickness of the liquid outlet pipe is greater than the wall thickness of the liquid inlet pipe.

10. The horizontal filter according to claim 1, wherein A liquid discharge port and a slag discharge port are arranged at the bottom of the side wall of the cylindrical body. The liquid discharge port is located between the first baffle and the second baffle, and the slag discharge port is located between the blind plate and the second baffle. The caliber of the liquid discharge port is less than or equal to the caliber of the slag discharge port.

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