Sewage impurity filtering device

Abstract

The utility model discloses a sewage impurity filtering device which comprises a tank body, the tank body is provided with a water inlet and a water outlet, the water inlet is positioned at the upper part of the tank body, the water outlet is positioned at the lower part of the tank body, a filtering frame is arranged in the tank body, a gap is formed between the filtering frame and the inner wall of the tank body, and the bottom of the filtering frame is provided with a drain outlet. The drain outlet penetrates through the bottom of the tank body; the water inlet is positioned at the upper part of the filter frame, and water entering the tank body passes through the filter frame, then enters the tank body and is discharged from the water outlet; the water spraying pipes with a plurality of heights are arranged in the filtering frame, and during cleaning, water sprayed out of the water spraying pipes is used for flushing the filtering frame. Compared with the traditional filter tank, the filter tank disclosed by the utility model has the advantages that the occupied area is smaller, the filtering efficiency is better, filter residues can be directly discharged from the lower part after a certain time, the filtered sewage can be directly led out from the side surface, the filtering efficiency is high, and the filter residues are more convenient to discharge.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment field, specifically is a sewage impurity filter device. BACKGROUND

[0002] In sewage, the sewage needs to be filtered in the early stage, and then water is fed into the water treatment system. The traditional filtering method is to use a filter tank, set a filter plate in the filter tank, and then discharge the sewage into a sedimentation tank. The traditional filter tank has a wide land occupation area, the filter plate has a small filtering area, the filter plate is easy to be blocked, and often the staff needs to salvage the impurities. SUMMARY

[0003] Therefore, in order to solve the above problems, the utility model provides a sewage impurity filter device which replaces the traditional filter tank. The filter device has a three-dimensional filter structure, a smaller land occupation area, a better filtering efficiency, and the filter residue can be directly discharged from the bottom after a certain period of time, and the filtered sewage can be directly led out from the side, so that the filtering efficiency is high and the filter residue is discharged more conveniently.

[0004] Specifically, a sewage impurity filter device includes a tank body, the tank body is provided with a water inlet and a water outlet, the water inlet is located at the upper part of the tank body, the water outlet is located at the lower part of the tank body, a filter frame is arranged in the tank body, the filter frame has a gap with the inner wall of the tank body, the filter frame has a sewage discharge port at the bottom, and the sewage discharge port penetrates the bottom of the tank body.

[0005] The water inlet is located at the upper part of the filter frame, the water entering the tank body passes through the filter frame, and then is discharged from the water outlet.

[0006] A plurality of water spray pipes of different heights are arranged in the filter frame. When cleaning, the filter frame is washed by the water sprayed by the water spray pipes.

[0007] Optionally, a mounting ring is fixedly arranged on the inner wall of the upper part of the tank body, and the upper part of the filter frame is fixed to the mounting ring.

[0008] Optionally, a plurality of water spray pipes are connected by a hard main water pipe, and the main water pipe is fixed to the upper end of the mounting ring or the filter frame through a connecting plate.

[0009] The main water pipe is connected with an external water source.

[0010] Optionally, the filter frame includes a conical unit barrel at the bottom, and a plurality of filter unit frames connected to the upper part of the conical unit barrel, and the adjacent filter unit frames are fixedly connected (and a sealing strip is arranged between the adjacent filter unit frames).

[0011] The upper end face of the uppermost filter unit frame is a connecting flange connected with the mounting ring or the connecting plate.

[0012] Optionally, the tank body is provided with a support.

[0013] Optionally, the tank body is provided with a circulating pipe, and a circulating motor is mounted on the circulating pipe.

[0014] The lower end of the circulating pipe is a water inlet end connected to the lower part of the tank body and communicating with the region between the tank body and the filter frame.

[0015] The utility model has the advantages of the following:

[0016] The utility model discloses a sewage impurity filtering device, replaces traditional filter tank, and through the three-dimensional filter structure, compared with the traditional filter tank, the land area is smaller, and the filtering efficiency is better, and the filter residue can be directly discharged from below after a certain period of time, and the filtered sewage can be directly led out from the side, so that the filtering efficiency is high, and the filter residue discharge is more convenient.

[0017] Meanwhile, the multiple water spraying pipes with different heights form three-dimensional flushing, can better flush the filter frame, and the staff can re-filter the frame through the water spraying pipe within a certain period of time.

[0018] Through the design of the circulating water pipe, the liquid at the bottom (in the region below the filter frame and the inner wall of the tank body) can be circulated to the top and enter the filter frame for re-filtering; preferably, at least a part of the circulating pipe is a transparent region, which facilitates the staff to observe the filtering effect, and the circulating pipe can be opened at any time, and the staff can observe the filtering effect according to the set time and then open it; optionally, the circulating pipe can also work for a long time, and the inlet end of the circulating pipe is connected to the tangent direction of the tank body, and the liquid discharged from the tank body is discharged in the tangent direction, so that the liquid can generate vortex at the bottom, and the efficiency of discharging the liquid from the liquid outlet is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a three-dimensional schematic view of the utility model;

[0020] Figure 2 is another three-dimensional schematic view of the utility model;

[0021] Figure 3 is a front view schematic view of the utility model;

[0022] Figure 4 is a side view schematic view of the utility model;

[0023] Figure 5 is Figure 4 A sectional view of the middle C-C;

[0024] Figure 6 A perspective view of the filter frame according to the present application;

[0025] Figure 7 A front view of the filter frame according to the present application;

[0026] Figure 8 A Figure 6 An enlarged view of the middle M;

[0027] In the figure: 100, tank body; 101, water outlet; 102, water inlet; 103, cover plate; 105, mounting ring; 200, circulating motor; 201, circulating pipe; 300, filter frame; 301, conical unit barrel; 302, connecting flange; 400, water spraying pipe; 401, main water pipe; 402, external water pipe; 500, connecting plate. DETAILED DESCRIPTION

[0028] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0029] In this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0030] As described in the background, in sewage, the sewage needs to be filtered for early-stage impurities before entering the water treatment system; the traditional filtering method mostly uses a filter tank, a filter plate is arranged in the filter tank, and then the sewage is discharged into a sedimentation tank; the traditional filter tank has a wide land occupation area, the filter area of the filter plate is small, the filter plate is easy to be blocked, and often a worker is needed to salvage the impurities.

[0031] Based on the above reasons, the embodiment provides a sewage impurity filtering device, which comprises a tank body 100 provided with a water inlet 102 and a water outlet 101, wherein the water inlet is located at the upper part of the tank body, the water outlet is located at the lower part of the tank body, the upper part of the tank body is provided with a cover plate 103, and the bottom is provided with a support 104;

[0032] A filtering frame 300 is arranged in the tank body, and a gap is formed between the filtering frame 300 and the inner wall of the tank body; the bottom of the filtering frame is provided with a sewage outlet which penetrates the bottom of the tank body;

[0033] The water inlet is located at the upper part of the filtering frame, and the water entering the tank body through the filtering frame is discharged from the water outlet;

[0034] A plurality of water spraying pipes 400 of different heights are arranged in the filtering frame 300, and the filtering frame is washed by the water sprayed by the water spraying pipes during cleaning. The plurality of water spraying pipes are connected by a hard main water pipe 401, and the main water pipe 401 is fixed to the mounting ring or the upper end of the filtering frame through a connecting plate 500; the main water pipe 401 is connected with an external water source through an external water pipe 402.

[0035] The above technical features replace the traditional filtering tank, and the filtering efficiency is higher, the filter residue can be directly discharged from the lower part after a certain period of time, and the filtered sewage can be directly led out from the side, so that the filtering efficiency is high, and the filter residue is more convenient to discharge.

[0036] In order to realize the installation of the filtering frame, in an embodiment, a mounting ring 105 is fixedly arranged on the inner wall of the upper part of the tank body, and the upper part of the filtering frame is fixed to the mounting ring. The mounting ring provides a support point for the filtering frame, so that the filtering frame or the main water pipe can be installed.

[0037] In an embodiment, as shown in Figures 6-7 The filtering frame 300 comprises a conical unit barrel 301 at the bottom and a plurality of filtering unit frames connected to the upper part of the conical unit barrel, and the adjacent filtering unit frames are fixedly connected, and optionally, a sealing strip is arranged between the adjacent filtering unit frames; wherein the upper end surface of the uppermost filtering unit frame is a connecting flange 302, and the connecting flange is connected with the mounting ring or the connecting plate through bolts and nuts.

[0038] In an embodiment, a small gap is formed between the lower part of the conical unit barrel and the inner wall of the tank body, which facilitates the discharge of the precipitate or impurities in the inner wall of the filter frame, because when the filter frame is flushed, small particle impurities inevitably enter the gap between the filter screen and the inner wall of the tank body, and the above-mentioned precipitate or small particle impurities can be discharged through the above-mentioned small gap; the small gap and the lower part of the conical unit barrel are respectively connected with a liquid discharge pipe, and the two liquid discharge pipes can be arranged concentrically. The pipeline communicated with the small gap is in a normally closed state by a valve.

[0039] In an embodiment, the outside of the tank body is further provided with a circulating pipe 201, a circulating motor 200 is installed on the circulating pipe, the upper end of the circulating pipe is a water outlet end, and the circulating pipe is communicated with the upper part of the tank body and located at the upper part of the filter frame.

[0040] The lower end of the circulating pipe is a water inlet end, connected to the lower part of the tank body, and communicated with the region between the tank body and the filter frame.

[0041] The use process of the above-mentioned sewage treatment device is as follows:

[0042] The sewage enters the tank body through the water inlet, because the water inlet is located at the upper part of the tank body and designed above the filter frame, the sewage will first flow into the region of the filter frame. The sewage in the filter frame is filtered by the filter unit frame, and the impurities are retained in the filter frame, and the filtered water continues to flow downward through the gap between the filter frame and the inner wall of the tank body.

[0043] The filter unit frame can be composed of filter screens of different materials or structures for removing particles of different sizes.

[0044] The filtered water continues to flow downward and is finally discharged through the water outlet at the lower part of the tank body, completing the entire filtration process.

[0045] With the passage of time, impurities in the filter frame will gradually accumulate and need to be cleaned regularly. When cleaning, water is supplied to the water spray pipe through an external water source. The water spray pipe is located at different heights in the filter frame and can wash the filter frame from multiple directions. The water flow generated by the washing will carry away the impurities in the filter frame, which are then discharged through the sewage outlet (penetrating the bottom of the tank body).

[0046] When the filter frame is installed, it is fixedly connected with the mounting ring or connecting plate at the upper part of the tank body through the connecting flange at the upper part thereof, to ensure its stability during operation.

[0047] The water spray pipe is connected through a hard main water pipe, and the main water pipe is fixed to the upper end of the mounting ring or the filter frame through the connecting plate, to ensure the stable position of the water spray pipe and smooth water supply.

[0048] Through the circulation pipe and the circulation motor, the water in the lower part of the tank is driven to re-enter the upper part of the tank through the upper end (outlet) of the circulation pipe, located above the filter frame. This circulation process helps increase the flow and mixing of the water in the tank, which may improve filtration efficiency or help disperse and remove impurities.

[0049] The circulation pipe allows the liquid at the bottom (located in the lower part of the filter frame and the inner wall of the tank) to circulate to the top and enter the filter frame for further filtration.

[0050] In one embodiment, at least a portion of the circulation tube is a transparent area, which allows staff to easily observe the filtration effect. The circulation tube can be opened at any time, and staff can open it only after setting a time limit to observe the filtration effect.

[0051] In one embodiment, the circulation pipe can also work for a long time. The inlet end of the circulation pipe is connected in the tangential direction of the tank body, and the liquid discharged from the tank body is discharged in the tangential direction. This method can help the liquid generate a vortex at the bottom and improve the efficiency of liquid discharge from the drain port.

[0052] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wastewater impurity filtration device, comprising a tank body, the tank body being provided with an inlet and an outlet, wherein the inlet is located at the upper part of the tank body and the outlet is located at the lower part of the tank body, characterized in that: A filter frame is provided inside the tank, and there is a gap between the filter frame and the inner wall of the tank. The bottom of the filter frame has a drain port that extends through the bottom of the tank. The inlet is located at the top of the filter frame. The water enters the tank after passing through the filter frame, and then exits from the outlet. Several water spray pipes of varying heights are installed inside the filter frame.

2. The wastewater impurity filtration device according to claim 1, characterized in that: An installation ring is fixedly installed on the inner wall of the upper part of the tank, and the upper part of the filter frame is fixed to the installation ring.

3. The wastewater impurity filtration device according to claim 2, characterized in that: Several of the spray pipes are connected by a rigid main water pipe, which is fixed to the upper end of the mounting ring or filter frame by a connecting plate; The main water pipe is connected to an external water source.

4. The wastewater impurity filtration device according to claim 3, characterized in that: The filter frame includes a conical unit barrel at the bottom and several filter unit frames connected to the upper part of the conical unit barrel, with adjacent filter unit frames fixedly connected. The uppermost filter unit frame has a connecting flange on its uppermost surface, which is connected to the mounting ring or the connecting plate.

5. The wastewater impurity filtration device according to claim 1, characterized in that: The tank is equipped with a support frame.

6. A wastewater impurity filtration device according to any one of claims 1-5, characterized in that: The tank body is also provided with a circulation pipe, on which a circulation motor is installed. The upper end of the circulation pipe is the water outlet and is connected to the upper part of the tank body, located above the filter frame. The lower end of the circulation pipe is the water inlet, which is connected to the lower part of the tank and connects to the area between the tank and the filter frame.

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