A multi-stage filtration multi-media filter device

By introducing collection and stirring components into a multi-stage filter, the problem of incomplete impurity collection is solved, achieving efficient impurity removal and water conservation, and improving filtration efficiency.

CN224485133UActive Publication Date: 2026-07-14大唐株洲发电有限责任公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
大唐株洲发电有限责任公司
Filing Date
2025-07-15
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing multi-stage filter devices do not collect impurities completely during backwashing, leading to re-contamination of the filter media and waste of water resources.

Method used

The design incorporates a collection component and a stirring component. The collection component collects impurities through a collection cylinder and baffles, while the stirring component distributes water evenly through a rotating shaft and stirring frame, preventing filter media contamination and repeated rinsing.

Benefits of technology

It effectively collects impurities, avoids re-contamination of filter media, reduces water resource consumption, and improves the utilization rate of filter media layers.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224485133U_ABST
    Figure CN224485133U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of multi-medium filter devices of multilevel filtration, more specifically to water treatment equipment technical field, including filter tank, the top cover is installed in filter tank top, the support frame is fixedly connected in filter tank outer surface, two pipelines are fixedly connected in filter tank bottom, three filter plates are fixedly connected in filter tank inner wall.The utility model said a kind of multi-medium filter devices of multilevel filtration, by setting collection component, specifically by the pipeline for pouring liquid in filter tank bottom to the inside of filter tank pours liquid, the impurities washed out can part water enter the inside of collection cylinder by the opening opened on the surface of collection cylinder, to discharge the inside of filter tank, with the gradual pouring of water flow into filter tank inside can respectively the impurities in the inside of three filter plates are cleaned and collected, not only can avoid the situation that filter material is polluted again after just being washed, and need not be washed repeatedly, reduce the use of water resources.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of water treatment equipment technology, and in particular to a multi-media filter device for multi-level filtration. Background Technology

[0002] In the fields of industrial production and water treatment, water purification is crucial for ensuring production quality, maintaining stable equipment operation, and meeting environmental protection requirements.

[0003] Multi-media filter devices are water treatment equipment that use a combination of multiple filter media in layers to progressively intercept and purify impurities of different particle sizes and types. Their core lies in utilizing the differences in media properties to construct a multi-layer filtration system, thereby improving water purification efficiency and precision.

[0004] Existing devices are inconvenient to collect the cleaned impurities when backwashing the filter media layer inside the filter plate. This not only causes the filter media to be recontaminated after washing, affecting the filtration effect, but also wastes a lot of backwash water due to incomplete impurity collection and repeated washing, exacerbating water waste. Therefore, we propose a multi-media filter device with multi-stage filtration to solve the above problems. Utility Model Content

[0005] The main objective of this invention is to provide a multi-media filter device with multi-level filtration, which can effectively solve the above problems.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A multi-media filter device for multi-stage filtration includes a filter tank, a top cover installed on the top of the filter tank, a support frame fixedly connected to the outer surface of the filter tank, two pipes fixedly connected to the bottom of the filter tank, three filter plates fixedly connected to the inner wall of the filter tank, a collection component and a stirring component installed inside the filter tank.

[0008] Preferably, the collection assembly includes a collection cylinder, the bottom outer surface of which is rotatably connected to the bottom inner wall of the filter tank, the top outer surface of which is rotatably connected to the top inner wall of the top cover, and a connecting cap is threaded onto the bottom outer surface of the collection cylinder.

[0009] Preferably, the outer surface of the collecting cylinder has three sets of through holes arranged in a linear array, and each of the three filter plates has a groove at the center of its top.

[0010] Preferably, each of the three grooves has a baffle inserted into its inner wall, and the inner wall of each of the three baffles is slidably connected to the outer surface of the collecting cylinder.

[0011] Preferably, each of the three baffles has two connecting rods fixedly connected to its top, and two of the three connecting rods located on the same side have plastic rings fixedly connected to their tops. The plastic rings are hollow. A fixing plate is fixedly connected to the outer surface of the collecting cylinder, and the fixing plate is located above the top filter plate.

[0012] Preferably, the stirring assembly includes a rotating shaft, the outer surface of which is rotatably connected to the inner wall of the top cover, a motor is fixedly connected to the top of the top cover, the output end of the motor is fixedly connected to the top of the rotating shaft, and a gear is fixedly connected to the bottom of the rotating shaft.

[0013] Preferably, the bottom of the top cover is fixedly connected to an isolation shell for blocking water flow, and the inner wall of the bottom of the isolation shell is rotatably connected to the outer surface of the collection cylinder.

[0014] Preferably, the left end of the gear is meshed with an external gear ring, the inner wall of the external gear ring is fixedly connected to the outer surface of the collecting cylinder, and a plurality of stirring racks are fixedly connected to the outer surface of the collecting cylinder.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model, by setting up a collection component, specifically, injects liquid into the filter tank through a pipe at the bottom of the filter tank. Some of the impurities washed out by the water will enter the collection cylinder through an opening on the surface of the collection cylinder, and then be discharged into the filter tank. As the water gradually flows into the filter tank, it can clean and collect the impurities inside the three filter plates respectively. This not only avoids the filter material that has just been washed being contaminated again, but also eliminates the need for multiple washes, thus reducing water consumption.

[0017] 2. This utility model incorporates a stirring assembly. Specifically, when the device filters water, the motor is turned on to drive the rotating shaft to rotate. The rotating shaft rotates the collecting cylinder, which in turn rotates several stirring racks. This ensures that the liquid inside the filter tank is in a flowing state, promoting a uniform distribution of water flow within the filter media layer. This avoids the "short-flow" phenomenon caused by uneven water flow in traditional filtration, and fully utilizes the dirt-trapping capacity of the entire filter media layer. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a front sectional view of the filter tank of this utility model;

[0020] Figure 3 This is a schematic diagram of the front sectional view of the top cover of this utility model;

[0021] Figure 4This is a schematic diagram of the overall structure of the baffle of this utility model;

[0022] Figure 5 This is a schematic diagram of the overall structure of the plastic ring of this utility model.

[0023] In the diagram: 1. Filter tank; 11. Top cover; 12. Support frame; 13. Pipe; 14. Filter plate; 2. Collection assembly; 21. Collection cylinder; 211. Connecting cover; 22. Baffle; 221. Connecting rod; 222. Plastic ring; 23. Fixing plate; 3. Stirring assembly; 31. Rotating shaft; 311. Motor; 312. Gear; 32. External gear ring; 33. Isolation shell; 34. Stirring rack. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] Example 1, as Figure 1-5 As shown, a multi-media filter device for multi-stage filtration includes a filter tank 1, a top cover 11 installed on the top of the filter tank 1, a support frame 12 fixedly connected to the outer surface of the filter tank 1, two pipes 13 fixedly connected to the bottom of the filter tank 1, three filter plates 14 fixedly connected to the inner wall of the filter tank 1, a collection component 2 and a stirring component 3 are provided inside the filter tank 1.

[0026] Specifically, in order to facilitate the collection and cleaning of impurities rinsed out, please refer to... Figure 2 and Figure 4 In this embodiment, the collection component 2 includes a collection cylinder 21, the bottom outer surface of the collection cylinder 21 is rotatably connected to the bottom inner wall of the filter tank 1, the top outer surface of the collection cylinder 21 is rotatably connected to the top inner wall of the top cover 11, and a connecting cover 211 is threadedly connected to the bottom outer surface of the collection cylinder 21.

[0027] Further reading Figure 2 In this embodiment, the outer surface of the collection cylinder 21 is provided with three sets of through holes, which are arranged in a linear array. The top center of each of the three filter plates 14 is provided with a groove.

[0028] Further reading Figure 4 and Figure 5 In this embodiment, baffles 22 are inserted into the inner walls of the three grooves, and the inner walls of the three baffles 22 are slidably connected to the outer surface of the collecting cylinder 21.

[0029] Further reading Figure 5In this embodiment, two connecting rods 221 are fixedly connected to the top of each of the three baffles 22, and plastic rings 222 are fixedly connected to the top of the two connecting rods 221 located on the same side. The plastic rings 222 are hollow. A fixing plate 23 is fixedly connected to the outer surface of the collection cylinder 21. The fixing plate 23 is located above the filter plate 14 at the top.

[0030] During implementation, when it is necessary to clean the three filter plates 14 inside the filter tank 1, first remove the connecting cover 211 at the bottom of the collection cylinder 21, and then fill the filter tank 1 with liquid through the pipe 13 at the bottom of the filter tank 1. As the liquid rapidly enters the filter tank 1, the impurities inside the three filter plates 14 will be gradually flushed out as the volume of liquid entering the filter tank 1 increases. Some of the flushed impurities and water will enter the collection cylinder 21 through the opening on the surface of the collection cylinder 21, and then be discharged from the filter tank 1. When the water comes into contact with the plastic ring 222... Upon contact, the plastic ring 222 will move upward due to buoyancy. As the plastic ring 222 moves upward, it will drive the baffle 22 to slide upward on the outer surface of the collection cylinder 21 through the two connecting rods 221. When the water reaches the height of the second filter plate 14, the plastic ring 222 will contact the bottom of the upper filter plate 14. At this time, the baffle 22 can block the opening. As the water gradually flows into the filter tank 1, it can clean and collect the impurities inside the three filter plates 14 respectively. This not only avoids the filter material that has just been rinsed being contaminated again, but also eliminates the need for multiple rinsing, thus reducing water consumption.

[0031] Example 2: This example is based on Example 1, with the addition of a stirring component.

[0032] Specifically, in order to achieve the goal of keeping the filtered water flowing inside the filter tank, refer to... Figure 2 and Figure 3 In this embodiment, the stirring assembly 3 includes a rotating shaft 31, the outer surface of the rotating shaft 31 is rotatably connected to the inner wall of the top cover 11, a motor 311 is fixedly connected to the top of the top cover 11, the output end of the motor 311 is fixedly connected to the top of the rotating shaft 31, and a gear 312 is fixedly connected to the bottom of the rotating shaft 31.

[0033] Further reading Figure 3 In this embodiment, the bottom of the top cover 11 is fixedly connected to an isolation shell 33 for blocking water flow, and the bottom inner wall of the isolation shell 33 is rotatably connected to the outer surface of the collection cylinder 21.

[0034] Further reading Figure 2 In this embodiment, the left end of the gear 312 is meshed with an external gear ring 32, the inner wall of the external gear ring 32 is fixedly connected to the outer surface of the collecting cylinder 21, and a plurality of stirring racks 34 are fixedly connected to the outer surface of the collecting cylinder 21.

[0035] During implementation, when the device filters the water source, the motor 311 is turned on to drive the rotating shaft 31 to rotate in the inner wall of the top cover 11. When the rotating shaft 31 rotates, it drives the gear 312 to rotate. When the gear 312 rotates, it drives the outer gear ring 32 to rotate. At the same time, the outer gear ring 32 rotates, which in turn drives the collection cylinder 21 to rotate. At the same time, the collection cylinder 21 rotates, which in turn drives several stirring racks 34 to rotate. This allows the liquid inside the filter tank 1 to be in a flowing state, which can promote the water flow to be evenly distributed in the filter media layer. This avoids the "short flow" phenomenon caused by uneven water flow in traditional filtration, and makes full use of the dirt interception capacity of the entire filter media layer.

[0036] The working principle of this utility model is as follows: When it is necessary to clean the three filter plates 14 inside the filter tank 1, firstly, remove the connecting cover 211 at the bottom of the collection cylinder 21, and then pour liquid into the filter tank 1 through the pipe 13 at the bottom of the filter tank 1. As the liquid rapidly enters the filter tank 1, the impurities inside the three filter plates 14 will be gradually washed out as the volume of liquid entering the filter tank 1 increases. Some of the washed-out impurities and water will enter the collection cylinder 21 through the opening on the surface of the collection cylinder 21, and then be discharged from the filter tank 1. When the water and the plastic ring 22... After contact, the plastic ring 222 will move upward due to buoyancy. When the plastic ring 222 moves upward, it will drive the baffle 22 to slide upward on the outer surface of the collection cylinder 21 through the two connecting rods 221. When the water reaches the height of the second filter plate 14, the plastic ring 222 will contact the bottom of the upper filter plate 14. At this time, the baffle 22 can block the opening. As the water gradually flows into the filter tank 1, it can clean and collect the impurities inside the three filter plates 14 respectively. This not only avoids the filter material that has just been rinsed being contaminated again, but also eliminates the need for multiple rinsing, thus reducing water consumption.

[0037] When the device filters the water source, the motor 311 is turned on to drive the rotating shaft 31 to rotate in the inner wall of the top cover 11. When the rotating shaft 31 rotates, it drives the gear 312 to rotate. When the gear 312 rotates, it drives the outer gear ring 32 to rotate. At the same time, the outer gear ring 32 rotates, which drives the collection cylinder 21 to rotate. At the same time, the collection cylinder 21 rotates, which drives several stirring racks 34 to rotate. This allows the liquid inside the filter tank 1 to be in a flowing state, which can promote the water flow to be evenly distributed in the filter media layer. This avoids the "short flow" phenomenon caused by uneven water flow in traditional filtration, and makes full use of the dirt interception capacity of the entire filter media layer.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-media filter device for multi-stage filtration, comprising a filter tank (1), a top cover (11) installed on the top of the filter tank (1), a support frame (12) fixedly connected to the outer surface of the filter tank (1), two pipes (13) fixedly connected to the bottom of the filter tank (1), and three filter plates (14) fixedly connected to the inner wall of the filter tank (1), characterized in that: The filter tank (1) is equipped with a collection component (2) and a stirring component (3). The collection assembly (2) includes a collection cylinder (21), the bottom outer surface of the collection cylinder (21) is rotatably connected to the bottom inner wall of the filter tank (1), the top outer surface of the collection cylinder (21) is rotatably connected to the top inner wall of the top cover (11), and a connecting cover (211) is threaded onto the bottom outer surface of the collection cylinder (21).

2. The multi-media filter device for multi-stage filtration according to claim 1, characterized in that: The outer surface of the collection cylinder (21) is provided with three sets of through holes, which are arranged in a linear array. The top center of each of the three filter plates (14) is provided with a groove.

3. The multi-media filter device for multi-stage filtration according to claim 2, characterized in that: Each of the three grooves has a baffle (22) inserted into its inner wall, and the inner walls of the three baffles (22) are slidably connected to the outer surface of the collecting cylinder (21).

4. The multi-media filter device for multi-stage filtration according to claim 3, characterized in that: Two connecting rods (221) are fixedly connected to the top of each of the three baffles (22). A plastic ring (222) is fixedly connected to the top of each of the two connecting rods (221) located on the same side. The plastic ring (222) is hollow. A fixing plate (23) is fixedly connected to the outer surface of the collection cylinder (21). The fixing plate (23) is located above the filter plate (14) at the top.

5. A multi-media filter device for multi-stage filtration according to claim 1, characterized in that: The stirring assembly (3) includes a rotating shaft (31), the outer surface of which is rotatably connected to the inner wall of the top cover (11), a motor (311) is fixedly connected to the top of the top cover (11), the output end of the motor (311) is fixedly connected to the top of the rotating shaft (31), and a gear (312) is fixedly connected to the bottom of the rotating shaft (31).

6. A multi-media filter device for multi-stage filtration according to claim 5, characterized in that: The bottom of the top cover (11) is fixedly connected to an isolation shell (33) for blocking water flow, and the inner wall of the bottom of the isolation shell (33) is rotatably connected to the outer surface of the collection cylinder (21).

7. A multi-media filter device for multi-stage filtration according to claim 6, characterized in that: The gear (312) is meshed with an external gear ring (32) at its left end. The inner wall of the external gear ring (32) is fixedly connected to the outer surface of the collecting cylinder (21). Several stirring racks (34) are fixedly connected to the outer surface of the collecting cylinder (21).