Filter convenient to replace

Abstract

The utility model relates to the technical field of filters, and aims to solve the problems that an existing filter is short in service life, foam ceramics need to be frequently disassembled and replaced during filtering, and time and labor are wasted. The utility model provides a filter convenient to replace. The filter comprises a liquid inlet pipe, a central tank body and a plurality of filtering mechanisms, the plurality of filtering mechanisms are annularly arranged at the bottom of the central tank body; the filtering mechanism comprises a shell, a filtering assembly and a cover body; the shell is communicated with the bottom of the central tank body; the filtering assembly penetrates into the shell from the opening end of the shell; the filtering assembly extends towards the bottom of the central tank body; the cover body is arranged at the opening end of the shell in a covering manner; a plurality of liquid pumping pipes communicated with the shell are arranged on the cover body in a penetrating manner; the liquid inlet pipe is communicated with the central tank body; according to the utility model, high-efficiency filtering can be realized after aeration, and the service life of the filtering assembly can be prolonged, so that the replacement frequency of the filtering assembly is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a filter that is easy to replace. Background Art

[0002] In the sewage treatment process, foam ceramics are often used as aeration treatment materials. Their porous structure and high porosity enable foam ceramics to effectively transfer gas, improve aeration efficiency, and thus promote the oxidation and decomposition of organic matter in sewage, improving water quality. In addition, the high porosity of foam ceramics also gives them excellent filterability, making them an ideal filter material in sewage treatment. Through the filtering effect of foam ceramics, impurities such as suspended matter and colloids in sewage can be removed, thereby purifying water quality.

[0003] In the prior art, foam ceramics are usually used as filter elements, and sewage is extracted and filtered by squeezing or negative pressure. For example, the patent with publication number CN111659187B discloses a foam ceramic filter, in which a foam ceramic is installed as a filter element in its casing. However, the casing needs to be disassembled to replace the foam ceramics. Therefore, for sewage treatment, in actual treatment and use, whether multiple filters or large filters are used, replacing the internal foam ceramics is time-consuming and labor-intensive, and it also affects the aeration efficiency during the aeration stage.

[0004] Based on the above description, there is an urgent need for a filter that is easy to replace and can improve sewage treatment efficiency. Utility Model Content

[0005] The utility model aims to provide a foam ceramic filter, aiming to solve the technical problems of existing filters, such as short service life, frequent disassembly and replacement of foam ceramics during filtration, which is time-consuming and labor-intensive.

[0006] The embodiments of the present invention are achieved through the following technical solutions:

[0007] A filter that is easy to replace, comprising a liquid inlet pipe, a central tank body and multiple filter mechanisms; the multiple filter mechanisms are arranged in a ring at the bottom of the central tank body; the filter mechanism comprises a shell, a filter assembly and a cover body; the shell is connected to the bottom of the central tank body; the filter assembly is inserted from the open end of the shell; the filter assembly extends toward the bottom of the central tank body; the cover body is covered on the open end of the shell; the cover body is penetrated by multiple liquid extraction tubes connected to the shell; the liquid inlet pipe is connected to the central tank body.

[0008] Preferably, an aeration opening is provided on the top of the central tank body.

[0009] Preferably, a first filter basket is provided in the top of the central tank body; and the liquid inlet pipe extends toward the inlet end of the first filter basket.

[0010] Preferably, the filter assembly includes a second filter basket, a connecting rod and a plurality of foam ceramic plates; the second filter basket is arranged in the shell; the connecting rod is arranged in the second filter basket; and the plurality of foam ceramic plates are arranged on the outer wall of the connecting rod at intervals along the horizontal direction.

[0011] Preferably, a plurality of foam ceramic plates are provided with a through hole in the middle thereof; the connecting rod passes through the through hole and is connected to the inner wall of the second filter basket; and a partition assembly is provided between adjacent foam ceramic plates.

[0012] Preferably, the partition assembly includes a cylinder and a pad; one end of the pad is connected to the foam ceramic plate; and the other end of the pad is embedded in the inner cavity of the cylinder.

[0013] Preferably, the end of the cushion block away from the cylinder is provided with a limiting convex ring; the foam ceramic plate is provided with a groove for the limiting convex ring to be embedded in.

[0014] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0015] The utility model can hold a large amount of sewage for pre-aeration through the central tank body, wherein a plurality of shells connected to the central tank body are further provided to accommodate the filter components, which can reduce the space occupied by the central tank body, and can also efficiently filter after aeration, and can extend the service life of the filter components, thereby reducing the replacement frequency of the filter components, saving time and labor, and having high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 for Figure 1 sectional view of

[0019] Figure 3 for Figure 2 A magnified schematic diagram of local structure A.

[0020] Icon: 1-liquid inlet pipe, 2-central tank body, 3-filtering mechanism, 31-shell, 32-filtering assembly, 321-second filter basket, 322-connecting rod, 323-foam ceramic plate, 33-cover body, 4-liquid extraction pipe, 5-first filter basket, 6-partitioning assembly, 61-cylinder body, 62-pad. DETAILED DESCRIPTION

[0021] Example 1

[0022] See also Figures 1 to 3 The utility model provides the following technical solutions: a filter that is easy to replace, suitable for situations where foam ceramics are used to treat sewage, etc.

[0023] Specifically, if Figure 1 and Figure 2 As shown, a filter that is easy to replace includes a liquid inlet pipe 1, a central tank body 2 and multiple filter mechanisms 3; the multiple filter mechanisms 3 are arranged in a ring at the bottom of the central tank body 2; the filter mechanism 3 includes a shell 31, a filter component 32 and a cover body 33; the shell 31 is connected to the bottom of the central tank body 2; the filter component 32 is inserted from the open end of the shell 31; the filter component 32 extends to the bottom of the central tank body 2; the cover body 33 is covered on the open end of the shell 31; the cover body 33 is penetrated by multiple liquid extraction pipes 4 connected to the shell 31; the liquid inlet pipe 1 is connected to the central tank body 2.

[0024] In this embodiment, a large amount of sewage can be held by the central tank body 2 for pre-aeration, wherein a plurality of shells 31 connected to the central tank body 2 are further provided to accommodate the filter assembly 32, which can reduce the space occupied by the central tank body 2, and can also efficiently filter after aeration, and can extend the service life of the filter assembly 32, thereby reducing the replacement frequency of the filter assembly 32, saving time and effort, and being highly practical.

[0025] In this embodiment, an aeration opening is provided on the top of the central tank body 2, and the aeration opening shell is sealed by further providing a flange ring cover body to facilitate negative pressure suction filtration in the later filtration stage, thereby improving the filtration effect and efficiency.

[0026] Specifically, if Figure 1 As shown, a first filter basket 5 is provided in the top of the central tank body 2 ; and the liquid inlet pipe 1 extends to the inlet end of the first filter basket 5 .

[0027] By providing the first filter basket 5 , the aerated sewage can be initially filtered, thereby reducing the pressure of the subsequent filter assembly 32 during filtration and avoiding clogging.

[0028] Specifically, if Figure 3As shown, the filter assembly 32 includes a second filter basket 321, a connecting rod 322 and multiple foam ceramic plates 323; the second filter basket 321 is arranged inside the shell 31; the connecting rod 322 is arranged inside the second filter basket 321; and the multiple foam ceramic plates 323 are arranged on the outer wall of the connecting rod 322 at intervals in the horizontal direction.

[0029] In this embodiment, one end of the connecting rod 322 is screwed to the threaded groove seat inside the second filter basket 321, and the other end is provided with a pressing ring to limit and resist the foam ceramic plate 323 at the end; through.

[0030] Specifically, if Figure 3 As shown, multiple foam ceramic plates 323 are each provided with a perforation in the middle. Connecting rods 322 pass through the perforations and connect to the inner wall of the second filter basket 321. A partition assembly 6 is provided between adjacent foam ceramic plates 323. The partition assembly 6 comprises a cylindrical body 61 and a spacer 62. One end of the spacer 62 is connected to the foam ceramic plate 323; the other end of the spacer 62 is embedded in the inner cavity of the cylindrical body 61. A retaining ring is provided on the end of the spacer 62 facing away from the cylindrical body 61. The foam ceramic plates 323 are provided with a slot for the retaining ring to fit into.

[0031] In this embodiment, the shell of the pad 62 is made of an elastic material commonly used in the prior art, such as corrosion-resistant silicone, which can reduce damage to the foam ceramic plate 323 during the suction filtration process.

[0032] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A filter that is easy to replace, comprising a liquid inlet pipe (1), characterized in that: The invention also comprises a central tank body (2) and a plurality of filter mechanisms (3); the plurality of filter mechanisms (3) are arranged around the bottom of the central tank body (2); the filter mechanism (3) comprises a shell (31), a filter assembly (32) and a cover (33); the shell (31) is in communication with the bottom of the central tank body (2); the filter assembly (32) is inserted from the open end of the shell (31); the filter assembly (32) extends toward the bottom of the central tank body (2); the cover (33) is arranged on the open end of the shell (31); the cover (33) is provided with a plurality of liquid extraction pipes (4) in communication with the shell (31); the liquid inlet pipe (1) is in communication with the central tank body (2).

2. The filter that is easy to replace according to claim 1, characterized in that: An aeration opening is provided on the top of the central tank body (2).

3. The filter that is easy to replace according to claim 1, characterized in that: A first filter basket (5) is provided in the top of the central tank body (2); and the liquid inlet pipe (1) extends toward the inlet end of the first filter basket (5).

4. The easily replaceable filter according to any one of claims 1 to 3, characterized in that: The filter assembly (32) comprises a second filter basket (321), a connecting rod (322) and a plurality of foam ceramic plates (323); the second filter basket (321) is arranged inside the housing (31); the connecting rod (322) is arranged inside the second filter basket (321); and the plurality of foam ceramic plates (323) are arranged at intervals along the horizontal direction on the outer wall of the connecting rod (322).

5. The filter that is easy to replace according to claim 4, characterized in that: The middle parts of the plurality of foam ceramic plates (323) are each provided with a perforation; the connecting rod (322) passes through the perforation and is connected to the inner wall of the second filter basket (321); and a partition assembly (6) is provided between adjacent foam ceramic plates (323).

6. The filter that is easy to replace according to claim 5, characterized in that: The partition assembly (6) comprises a cylinder (61) and a pad (62); one end of the pad (62) is connected to the foam ceramic plate (323); and the other end of the pad (62) is embedded in the inner cavity of the cylinder (61).

7. The filter that is easy to replace according to claim 6, characterized in that: The end of the cushion block (62) away from the cylinder (61) is provided with a limiting convex ring; and the foam ceramic plate (323) is provided with a groove for the limiting convex ring to be embedded.

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