Multi-stage filtering device for sewage treatment

Abstract

The utility model discloses a multistage filtering device for sewage treatment, which belongs to the technical field of sewage treatment and comprises a filtering box body, a liquid inlet pipe is arranged at the upper end of the filtering box body, a drain pipe is fixedly connected to the outer wall, close to the bottom, of the filtering box body, and a plurality of filtering components are mounted in the filtering box body. Electric sliding rails on the two sides in an arranged driving assembly drive sliding blocks on the two sides to move in the electric sliding rails, so that a connecting plate body drives each air outlet pore plate to move inwards, the air outlet pore plates are located below the corresponding filter plates, external air is pressurized through an air inlet pump to enter the connecting plate body, and the air outlet pore plates are located in the connecting plate body; the filter plate is provided with a plurality of filter plates, so that the impurities enter each air outlet hole plate and are sprayed out from the air outlet holes above, the impurities can be blown upwards from the lower part of each filter plate, and the blown impurities can also be discharged outwards from the drain outlet due to the blocking of the bottom of the air outlet hole plate above each filter plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and specifically relates to a multi-stage filtering device for sewage treatment. Background Art

[0002] Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care and catering, and is increasingly entering the daily lives of ordinary people. Sewage is generally separated and filtered through multi-stage filtration devices to isolate harmful substances and foreign matter, so that normal water without pollution is discharged.

[0003] Existing sewage treatment equipment usually has multiple filter screens inside to perform multi-stage filtration of sewage. For example, Chinese utility model patent CN213803178U discloses a multi-stage filtration device for sewage treatment. Through the coordinated arrangement of a vibration motor, a connecting rod and a vibration block, when the sewage is filtered, solid particles and other impurities are trapped on the upper surface of the filter screen. At this time, the vibration motor is driven to drive the filter screen to vibrate, so that solid particles and other impurities fall from the guide port along the filter screen under vibration and are collected in the collection box, thereby achieving the purpose of not disassembling the filter screen. The cleaning of the filter can save labor, ensure the normal use of the filter, and improve work efficiency. Through the coordinated setting of the sampling port, the reflux pipe and the reflux pump, when the sewage is stored at the bottom of the box after multi-stage filtration, the staff can test the filtered sewage through the sampling port. If the sewage meets the discharge standard, it will be discharged from the outlet pipe. If it does not meet the discharge standard, the reflux pump will be turned on to make the sewage at the bottom of the box flow back from the top of the cover plate to re-enter the box for re-filtration until it meets the discharge standard and is discharged from the outlet pipe, thereby ensuring the filtration requirements of the discharged sewage.

[0004] Although the above-mentioned prior art can make impurities such as solid particles fall from the guide port along the filter under vibration and be collected in the collection box, so that the filter does not need to be disassembled to achieve cleaning of the filter, but during filtering, some impurities will be stuck in the holes of the filter, causing the filter to be unable to continue filtering, resulting in sewage congestion and then excessive pressure leakage. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In order to solve the problem raised in the above background technology that some impurities will be stuck in the holes of the filter during filtering, thereby causing the filter to be unable to continue filtering, resulting in sewage congestion and excessive intake pressure leaking outward, the utility model adopts the following technical solution.

[0007] A multi-stage filtering device for sewage treatment comprises a filter box, an upper end of the filter box is provided with a liquid inlet pipe, an outer wall of the filter box near the bottom is fixedly connected to a drain pipe, a plurality of filter components are installed inside the filter box, an insertion groove is provided on the outer wall of the filter box below each filter component, an air outlet plate is slidably connected inside each insertion groove, a plurality of air outlet holes are provided on the upper end of each air outlet plate, each air outlet plate is fixedly connected to a connecting plate body at one end located outside the filter box, a mounting plate is fixedly connected to the outer wall of the connecting plate body, an air intake pump is detachably connected to the upper end of the mounting plate, an air outlet end of the air intake pump is detachably connected to the connecting plate body, the connecting plate body is hollow inside and the connecting plate body is connected to each air outlet plate, a driving assembly is installed at the bottom of the air outlet plate, the driving assembly drives the air outlet plate to be inserted into the interior of the filter box and is located below each driving assembly.

[0008] Preferably, a diversion box is fixedly connected to the bottom of the liquid inlet pipe. The diversion box is hollow inside and has an opening at the bottom. A diversion plate is detachably connected to the opening at the bottom of the diversion box. A plurality of diversion holes are arranged on the diversion plate. A plurality of hoses are arranged between each diversion hole and the liquid inlet pipe.

[0009] Preferably, the outer wall of the filter box is fixedly connected with a plurality of sewage outlets opposite to each other of the filter components.

[0010] Preferably, one end of each air outlet plate inserted into the filter box is detachably connected with a sealing rubber block.

[0011] Preferably, the driving assembly includes an electric slide rail and a sliding block. The electric slide rails are detachably connected to the outer walls of the filter box body near the bottom of the insertion groove, and the sliding blocks are fixedly connected to the bottom of the connecting plate body. The sliding blocks on both sides are respectively connected to the inner part of the electric slide rails on both sides for sliding connection, and the electric slide rails on both sides drive the sliding blocks on both sides to move inside the electric slide rails.

[0012] Preferably, the drive assembly comprises filter plates, each of which is installed obliquely to the sewage outlet.

[0013] Preferably, the apertures of the plurality of filter plates decrease in sequence from top to bottom.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The electric slide rails on both sides of the driving assembly are used to drive the sliding blocks on both sides to move inside the electric slide rails, so that the connecting plate body drives each air outlet plate to move inward, so that the air outlet plate is located below each filter plate, and the external air is pressurized by the air intake pump to enter the inside of the connecting plate body, and then enter the inside of each air outlet plate and spray out from the air outlet above, so that impurities can be blown upward from under each filter plate, and because the bottom of the air outlet plate above each filter plate is blocked, the blown impurities can also be discharged outward from the sewage outlet.

[0016] 2. The sewage is allowed to enter the interior of each hose through the inlet pipe, and the sewage is dropped downward from the interior of each diversion hole through each hose, so that the sewage can fully contact the filter plate, avoiding the sewage from falling on the same position of the filter plate, affecting the sewage entry speed after being blocked by impurities, and also increasing the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a multi-stage filtering device for sewage treatment in the utility model;

[0018] Figure 2 This is a schematic diagram of the filter box structure in the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the flow distribution box in the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the air outlet plate in the utility model;

[0021] Figure 5 For the utility model Figure 4 Enlarged structural diagram at A in the middle.

[0022] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0023] 100, filter box; 101, drain pipe; 102, filter plate; 103, sewage outlet; 104, insertion slot; 105, electric slide rail;

[0024] 200, liquid inlet pipe; 201, diversion box; 202, diversion plate; 203, diversion hole;

[0025] 300, air outlet plate; 301, connecting plate body; 302, air intake pump; 303, mounting plate; 304, sliding block; 305, sealing rubber block. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0029] like Figure 1 As shown, it is a schematic structural diagram of a multi-stage filtering device for sewage treatment in a preferred embodiment of the utility model. The multi-stage filtering device for sewage treatment in this embodiment includes a filtering box 100, and a liquid inlet pipe 200 is arranged at the upper end of the filtering box 100. The outer wall of the filtering box 100 near the bottom is fixedly connected with a drain pipe 101. In this embodiment, the sewage to be treated enters the interior of the filtering box 100 from the liquid inlet pipe 200, and is discharged to the outside through the drain pipe 101 after filtering.

[0030] like Figure 2 As shown, it is a schematic diagram of the filter box structure in this embodiment, the interior of the filter box 100 is detachably connected with multiple filter plates 102, each filter plate 102 is installed at an angle, and the outer wall of the filter box 100 is fixedly connected with multiple sewage outlets 103 opposite to the filter plates 102, each sewage outlet 103 is connected to the interior of the filter box 100, and the apertures of the multiple filter plates 102 decrease from top to bottom. In this embodiment, sewage enters the interior of the filter box 100, and is filtered by the multiple filter plates 102, and the apertures of the multiple filter plates 102 decrease from top to bottom, so that multi-stage filtration can be performed to filter impurities with different apertures.

[0031] It is worth noting that the above-mentioned filter plate is a filter component in this embodiment, and the filter component includes but is not limited to 102. As long as it is a component that can filter impurities in sewage, it can be applied to this embodiment.

[0032] like Figure 3As shown, it is a schematic diagram of the diversion box structure in this embodiment, the bottom of the liquid inlet pipe 200 is fixedly connected to the diversion box 201, the diversion box 201 is hollow inside and has an opening at the bottom, and the opening at the bottom of the diversion box 201 is detachably connected to the diversion plate 202, and a plurality of diversion holes 203 are provided on the diversion plate 202, and a plurality of hoses are provided between each diversion hole 203 and the liquid inlet pipe 200. In this embodiment, the sewage enters the interior of each hose through the liquid inlet pipe 200, and the sewage falls downward from the interior of each diversion hole 203 through each hose, so that the sewage can fully contact with the filter plate 102, avoiding the sewage falling on the same position of the filter plate 102, affecting the entry speed of the sewage after being blocked by impurities, and also increasing the filtering effect.

[0033] like Figure 2 as well as Figure 4 As shown, it is a schematic diagram of the filter box structure and the air outlet orifice plate structure in this embodiment, the outer wall of the filter box 100 located below each filter plate 102 is provided with an insertion groove 104, and the interior of each insertion groove 104 is slidably connected with an air outlet orifice plate 300, and the upper end of each air outlet orifice plate 300 is provided with a plurality of air outlet holes, and one end of each air outlet orifice plate 300 located outside the filter box 100 is fixedly connected to a connecting plate body 301, and the outer wall of the connecting plate body 301 is fixedly connected to a mounting plate 303, and the upper end of the mounting plate 303 is detachably connected to an air intake pump 302, and the air outlet end of the air intake pump 302 is detachably connected to the connecting plate body 301, and the connecting plate body 301 is hollow inside and connected The plate body 301 is connected to each air outlet plate 300. In this embodiment, the filter holes on the filter plate 102 are easily blocked by impurities after a long period of filtration. At this time, when cleaning the filter plate, the air outlet plate 300 is pushed inward so that the air outlet plate 300 is located below each filter plate 102. The external air is pressurized by the air intake pump 302 to enter the interior of the connecting plate body 301, and then enters the interior of each air outlet plate 300 and is ejected from the air outlet above, so that the impurities can be blown upward from the bottom of each filter plate 102, and because the bottom of the air outlet plate 300 above each filter plate 102 is blocked, the blown impurities can also be discharged outward from the sewage outlet 103.

[0034] like Figure 2 as well as Figure 4 As shown, in order to make the air outlet plate 300 more convenient to move, in the present embodiment, the outer walls of the filter box 100 near the bottom of the insertion groove 104 are detachably connected with electric slide rails 105, and the bottom sides of the connecting plate body 301 are fixedly connected with sliding blocks 304, and the sliding blocks 304 on both sides are respectively slidably connected to the inside of the electric slide rails 105 on both sides, and the electric slide rails 105 on both sides drive the sliding blocks 304 on both sides to move inside the electric slide rails 105, so that the connecting plate body 301 drives each air outlet plate 300 to move inward or outward.

[0035] It is worth noting that the above-mentioned electric slide rail 105 and sliding block 304 are driving components in this embodiment, and the driving components include but are not limited to the electric slide rail 105 and sliding block 304. As long as it is a component that can move each air outlet plate 300 inward or outward, it can be applied to this embodiment.

[0036] like Figure 5 As shown, it is in this embodiment Figure 4 In the enlarged structural diagram at A in the middle, one end of each air outlet plate 300 inserted into the filter box 100 is detachably connected with a sealing rubber block 305. In this embodiment, the setting of the sealing rubber block 305 can make contact with the inner wall of the filter box 100 when the air outlet plate 300 moves outward, thereby preventing leakage to the outside through the insertion groove 104 when filtering sewage, thereby improving the sealing performance.

[0037] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A multi-stage filtering device for sewage treatment, comprising a filtering box (100), wherein a liquid inlet pipe (200) is arranged at the upper end of the filtering box (100), a drain pipe (101) is fixedly connected to the outer wall of the filtering box (100) near the bottom, and a plurality of filtering components are installed inside the filtering box (100). It is characterized in that An insertion groove (104) is provided on the outer wall of the filter box (100) located below each filter assembly, an air outlet plate (300) is slidably connected inside each insertion groove (104), a plurality of air outlet holes are provided on the upper end of each air outlet plate (300), one end of each air outlet plate (300) located outside the filter box (100) is fixedly connected to a connecting plate body (301), and an outer wall of the connecting plate body (301) is fixedly connected to a mounting plate (303), The upper end of the mounting plate (303) is detachably connected to an air intake pump (302), and the air outlet end of the air intake pump (302) is detachably connected to the connecting plate body (301). The interior of the connecting plate body (301) is hollow and the connecting plate body (301) is connected to each air outlet plate (300). A driving component is installed at the bottom of the air outlet plate (300), and the driving component drives the air outlet plate (300) to be inserted into the interior of the filter box (100) and is located below each driving component.

2. The multi-stage filtration device for sewage treatment according to claim 1, It is characterized in that The bottom of the liquid inlet pipe (200) is fixedly connected to a flow dividing box (201); the flow dividing box (201) is hollow inside and has an opening at the bottom; a flow dividing plate (202) is detachably connected to the opening at the bottom of the flow dividing box (201); a plurality of flow dividing holes (203) are provided on the flow dividing plate (202); and a plurality of hoses are provided between each flow dividing hole (203) and the liquid inlet pipe (200).

3. The multi-stage filtration device for sewage treatment according to claim 2, It is characterized in that The outer wall of the filter box (100) is fixedly connected with a plurality of sewage outlets (103) opposite to each other of the filter components.

4. The multi-stage filtration device for sewage treatment according to claim 3, It is characterized in that One end of each air outlet plate (300) inserted into the interior of the filter housing (100) is detachably connected to a sealing rubber block (305).

5. The multi-stage filtration device for sewage treatment according to claim 4, It is characterized in that The driving assembly comprises an electric slide rail (105) and a sliding block (304); the electric slide rail (105) is detachably connected to both sides of the outer wall of the filter box (100) near the bottom of the insertion groove (104); the sliding blocks (304) are fixedly connected to both sides of the bottom of the connecting plate body (301); the sliding blocks (304) on both sides are respectively slidably connected to the inside of the electric slide rails (105) on both sides; the electric slide rails (105) on both sides drive the sliding blocks (304) on both sides to move inside the electric slide rails (105).

6. The multi-stage filtration device for sewage treatment according to claim 5, It is characterized in that The driving assembly comprises filter plates (102), and each filter plate (102) is installed obliquely with respect to the sewage outlet (103).

7. The multi-stage filtration device for sewage treatment according to claim 6, It is characterized in that The apertures of the plurality of filter plates (102) decrease in sequence from top to bottom.

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