CN211724858U - Sewage filtering device and domestic sewage treatment device - Google Patents

Abstract

The utility model relates to a sewage filtration device and a domestic sewage treatment device, and relates to the technical field of sewage treatment equipment. The sewage filtration device comprises a filter box, a first filter layer and a scraper. The first filter layer is installed in the filter box, and the filter box is connected to the filter box. The filter box is divided into a first inner cavity and a second inner cavity, and the filter box is provided with a sewage inlet, a first sewage outlet and a drain outlet. In the inner cavity, the scraper is movably arranged in the first inner cavity, and is used for collecting the impurities on the first filter layer to the first sewage outlet. The technical problem of inconvenient cleaning of impurities filtered by the sewage filtering device in the prior art and thus low filtering efficiency is alleviated.

Description

Sewage filtration device and domestic sewage treatment device

technical field

The utility model relates to the technical field of sewage treatment equipment, in particular to a sewage filtering device and a domestic sewage treatment device.

Background technique

Sewage, usually refers to the effluent from life and production that is polluted to a certain extent. Sewage mainly includes domestic sewage, industrial wastewater and initial rainwater. The main pollutants of sewage include pathogen pollutants, oxygen-consuming pollutants, plant nutrients and toxic pollution. things etc. Domestic sewage is the sewage that we usually come into contact with the most. We will produce sewage in our daily life when washing vegetables, washing clothes, bathing and flushing toilets, and these sewage will inevitably carry some solid impurities, such as vegetable leaves, rice grains and hair and other impurities. With the accumulation of these impurities to block the sewer, therefore, a domestic sewage filter device is required.

However, in the existing filter device for sewage treatment, some large-volume impurities are easy to block and accumulate in it. After a period of use, the filtering efficiency of the filter device is likely to decrease, thereby causing the water flow to be blocked.

Utility model content

The purpose of the embodiments of the present utility model is to provide a sewage filter device and a domestic sewage treatment device, which are used to alleviate the technical problem of inconvenient cleaning of impurities filtered by the sewage filter device in the prior art, resulting in low filtration efficiency.

In a first aspect, the embodiment provides a sewage filtering device, including a filter box, a first filter layer and a scraper;

The first filter layer is installed on the filter box, and the filter box is divided into a first inner cavity and a second inner cavity, the filter box is provided with a sewage inlet, a first sewage outlet and a water outlet, the The sewage inlet and the first sewage outlet are both connected to the outside world and the first inner cavity, the water outlet is connected to the outside world and the second inner cavity, the scraper is movably arranged in the first inner cavity, and is used for The impurities on the first filter layer are collected to the first sewage outlet.

In an optional embodiment, the sewage filtering device further includes a driving device and a rotating shaft drivably connected to the driving device, the driving device is installed outside the filter box, and the rotating shaft is rotatably installed in the filter box , the scraper is fixedly connected to the rotating shaft.

In an optional embodiment, the first inner cavity is higher than the second inner cavity, the sewage filtering device further includes a brush, the brush is fixedly installed on the scraper, and is located on the scraper between the plate and the first filter layer.

In an optional embodiment, the sewage filtering device further includes a second filter layer fixedly installed in the filter box, and the second filter layer divides the second inner cavity into a sedimentation cavity and a drainage cavity, so The drain port communicates with the outside and the drain cavity.

In an optional embodiment, the first filter layer includes a first filter screen, the second filter layer includes filter cotton, and the first inner cavity communicates with the sedimentation cavity through the first filter screen, The sedimentation chamber communicates with the drainage chamber through the filter cotton.

In an optional embodiment, the first filter layer further includes a second filter screen, the pore size of the mesh of the second filter screen is smaller than the pore size of the mesh hole of the first filter screen, and the first inner The cavity communicates with the drainage cavity through the second filter screen.

In an optional embodiment, the sewage filtering device further includes a dosing pipe installed in the filter box, the dosing pipe is provided with a spray head accommodated in the sedimentation chamber, and the dosing pipe passes through the The nozzle sprays out the medicine for interacting with the sewage.

In an optional embodiment, the sewage filtering device further includes a stirring paddle, the rotating shaft is partially accommodated in the sedimentation chamber, the stirring paddle is fixedly connected to the rotating shaft, and is used for stirring the sediment in the sedimentation chamber. sewage.

In an optional embodiment, the bottom of the filter box is provided with a second sewage outlet that communicates with the outside world and the sedimentation chamber.

In a second aspect, the embodiment provides a domestic sewage treatment device, including the sewage filtering device according to any one of the foregoing embodiments.

Compared with the prior art, the beneficial effects of the sewage filtering device and the domestic sewage treatment device provided by the present utility model are as follows:

The sewage filtration device provided by the utility model comprises a filter box, a first filter layer and a scraper, wherein the first filter layer is installed in the filter box and divides the inner space of the filter box into a first inner cavity and a second inner cavity , the filter box is provided with a sewage inlet, a first sewage outlet and a water outlet. At this time, the first sewage outlet is connected to the first inner cavity and the outside world, and is close to the first filter layer; the scraper is movably arranged in the first inner cavity, and The impurities on the first filter layer can be collected to the first sewage outlet.

Specifically, the domestic sewage flows into the first inner cavity from the sewage inlet, and the sewage is preliminarily filtered through the first filter layer and flows to the second inner cavity. At this time, the first filter layer can filter the large-volume impurities in the sewage to remove It is ensured that the sewage flowing into the second inner cavity can be treated more efficiently and smoothly discharged from the water outlet. When there are too many large-volume impurities attached to the first filter layer and will affect the flow of sewage to the second inner cavity, the scraper can be driven to move at this time to collect the impurities on the first filter layer to the vicinity of the first sewage outlet. Then, open the first sewage outlet to take out the impurities, and then the impurities can be discharged, so as to ensure the normal filtering performance of the first filter layer and the smooth discharge of sewage at the discharge outlet, and the filtering efficiency of the sewage filtering device is higher.

The technical advantages of the domestic sewage treatment device provided by the present invention are the same as those of the above-mentioned sewage filtration device, which will not be repeated here.

Other features and advantages of the present invention will be described in detail in the detailed description section that follows.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings required in the embodiments of the present invention will be briefly introduced below. It should be understood that the following drawings only illustrate some implementations of the present invention. For example, therefore, it should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of a sewage filtering device provided by an embodiment of the present invention.

Icon: 10-filter box; 20-scraper; 30-drive device; 40-rotating shaft; 50-first filter; 60-second filter; 70-brush; 80-filter cotton; 90-dosing tube ; 110-stirring paddle; 120-first inner cavity; 130-settling cavity; 140-drainage cavity; 150-controller;

11 - sewage inlet; 12 - first sewage outlet; 13 - second sewage outlet; 14 - water outlet;

91-Sprinkler.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or is the customary pendulum when the utility model product is used. The orientation or positional relationship is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as affecting the present utility model. New type of restriction. Furthermore, the terms "first", "second", etc. are only used to differentiate the description and should not be construed to indicate or imply relative importance.

In the description of the present utility model, it should also be noted that, unless otherwise expressly specified and limited, the terms "arrangement" and "connection" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, Or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Example 1

1 , the sewage filtration device provided in this embodiment includes a filter box 10, a first filter layer and a scraper 20, wherein the first filter layer is installed in the filter box 10 and divides the inner space of the filter box 10 into a first filter layer. An inner cavity 120 and a second inner cavity, the filter box 10 is provided with a sewage inlet 11, a first sewage outlet 12 and a water outlet 14. At this time, the first sewage outlet 12 communicates with the first inner cavity 120 and the outside, and is close to the first sewage outlet 12. The filter layer; the scraper 20 is movably arranged in the first inner cavity 120 , and can collect the impurities on the first filter layer to the first sewage outlet 12 .

Specifically, the domestic sewage flows into the first inner cavity 120 from the sewage inlet 11, and the sewage is preliminarily filtered through the first filter layer and flows to the second inner cavity. At this time, the first filter layer can filter the large-volume impurities in the sewage. , so as to ensure that the sewage flowing into the second inner cavity can be treated more efficiently and discharged from the water outlet 14 smoothly. When there are too many large-volume impurities attached to the first filter layer and will affect the flow of sewage to the second inner cavity, the scraper 20 can be driven to move at this time, so as to collect the impurities on the first filter layer to the first sewage outlet 12 Nearby, then, open the first sewage outlet 12 to take out the impurities, and the impurities can be discharged to ensure the normal filtration performance of the first filter layer and the smooth discharge of sewage at the sewage outlet 14, and the filtration efficiency of the sewage filtration device is higher.

It should be noted that, in this embodiment, after the sewage enters the second inner cavity after being preliminarily filtered by the first filter layer, secondary filtration or neutralization treatment can be performed in the second inner cavity, so that the sewage discharged from the water outlet 14 is basically There are no more solid particles, or no more harmful substances, so that the filtering effect of the sewage filter device is higher.

Specifically, in this embodiment, the specific structure of the sewage filtering device is also introduced in detail below.

In this embodiment, the sewage filtering device further includes a driving device 30 and a rotating shaft 40 that is drivingly connected to the driving device 30. The driving device 30 is installed outside the filter box 10, the rotating shaft 40 is rotatably installed on the filter box 10, and the scraper 20 is fixedly connected to the rotating shaft. 40.

Specifically, the filter box 10 is preferably a cylindrical structure, the axis of the rotating shaft 40 coincides with the axis of the filter box 10 , and the length of the scraper 20 at this time is approximately the inner diameter of the first inner cavity 120 , that is, the length of the scraper 20 away from the rotating shaft 40 One end is approximately in contact with the inner wall of the filter box 10. When the impurities on the first filter layer need to be cleaned, the driving device 30 can drive the scraper 20 to rotate, so as to collect the impurities on the first filter layer to near the first sewage outlet 12. The area is convenient for impurities to be discharged from the first sewage outlet 12 .

It should be noted that the driving device 30 is preferably a motor and is fixedly installed on the top of the filter box 10. The sewage filtering device further includes a controller 150, which can control the on-time and scraping of the motor according to the accumulation volume of impurities on the first filter layer. The rotation angle of the plate 20 can push the impurities to the vicinity of the first sewage outlet 12 more accurately.

Alternatively, in this embodiment, the filter box 10 can also be set to be in the shape of a cuboid. At this time, the scraper 20 can be connected to the scraper 20 through an electric push rod or a cylinder to drive the scraper 20 to move in a straight line, and the impurities on the first filter layer can also be pushed to the Close to the side of the first sewage outlet 12 .

In this embodiment, the first inner cavity 120 is higher than the second inner cavity, and the sewage filtering device further includes a brush 70, which is fixedly installed on the scraper 20 and is located between the scraper 20 and the first filter layer.

At this time, the length direction of the scraper 20 preferably extends in the horizontal direction, and the sewage inlet 11 can be arranged on the side wall of the filter box 10 near the top, or at the top of the filter box 10, and the sewage inlet 11 can be arranged at the bottom of the filter box 10. In the case of the side wall, the first sewage outlet 12 is preferably arranged on the side of the filter box 10 opposite to the sewage inlet 11. The sewage enters the first inner cavity 120 from the sewage inlet 11 and then flows into the second inner cavity under the action of gravity. At this time, the large volume of impurities will also partially impact to the side close to the first sewage outlet 12 under the impact of the sewage, which is convenient for the collection of impurities. At the same time, the brush 70 can more carefully clean the first filter layer to ensure the filtering effect of the first filter layer.

In this embodiment, the sewage filtering device further includes a second filter layer fixedly installed in the filter box 10 . The second filter layer divides the second inner cavity into a sedimentation cavity 130 and a drainage cavity 140 , and the drainage port 14 communicates with the outside world and the drainage cavity 140 . .

Specifically, the drainage chamber 140 is preferably a hollow cylinder structure, and the sedimentation chamber 130 is located in the hollow position of the drainage chamber 140. After the sewage is initially filtered by the first filter layer and enters the sedimentation chamber 130, it will enter the drainage chamber from the sedimentation chamber 130. At 140 , secondary filtration is performed through the second filter layer, so as to further reduce the particle impurity content and the volume of a single particle impurity in the sewage in the drainage cavity 140 .

In this embodiment, the first filter layer includes the first filter screen 50 , the second filter layer includes the filter cotton 80 , the first inner cavity 120 communicates with the sedimentation chamber 130 through the first filter screen 50 , and the sedimentation chamber 130 communicates with the filter cotton 80 through the filter cotton 80 . The drain cavity 140 communicates.

Specifically, compared with the first filter screen 50 , the filter cotton 80 can prevent impurities of smaller particles from passing through, so as to ensure the secondary filtration of the sewage by the filter cotton 80 .

It should be noted that the second filter layer may also include two oppositely arranged vertical plates, two filter cottons 80 and are respectively fixed between the two vertical plates, the upper ends of the splint and the filter cotton 80 are both connected to the first filter screen 50 is fixedly connected, and the lower ends are fixedly connected to the bottom of the filter box 10 to form a sedimentation cavity 130 around.

In addition, the filter cotton 80 can also be replaced with a filter mesh having a mesh aperture smaller than that of the first filter mesh 50 .

In this embodiment, the first filter layer further includes a second filter screen 60 , the aperture of the mesh of the second filter screen 60 is smaller than the aperture of the mesh hole of the first filter screen 50 , and the first inner cavity 120 passes through the second filter screen 60 It communicates with the drainage cavity 140 .

Specifically, the second filter screen 60 has a circular structure, the first filter screen 50 is circular and is connected to the hollow position of the second filter screen 60 , and the filtering effect of the second filter screen 60 is similar to that of the filter cotton 80 . , the sewage can directly enter the drainage cavity 140 through the second filter screen 60, and this setting can reduce the filtering pressure of the filter cotton 80 to ensure the filtering efficiency of the sewage filtering device.

Alternatively, in this embodiment, the first inner cavity 120 may not be communicated with the drainage cavity 140, and the sewage in the first inner cavity 120 can only enter the drainage cavity 140 through the first filter screen 50 and the filter cotton 80 in sequence, which can also ensure sewage filtration. For the filtering effect of the device, at this time, the first inner cavity 120 , the sedimentation cavity 130 and the drainage cavity 140 may be arranged at intervals from top to bottom.

In this embodiment, the sewage filtering device further includes a dosing pipe 90 installed in the filter box 10 . The dosing pipe 90 is provided with a spray head 91 accommodated in the sedimentation chamber 130 , and the dosing pipe 90 is sprayed out through the spray head 91 for mixing with the sewage. acting drugs.

Specifically, the medicine sprayed from the dosing pipe 90 through the spray head 91 is mainly used to aggregate the particulate impurities in the sewage in the sedimentation chamber 130 , so that the particulate impurities can be aggregated to form larger-volume particles, so as to further reduce the sewage in the drainage chamber 140 . particle impurity content.

In this embodiment, the sewage filtering device further includes a stirring paddle 110 . The rotating shaft 40 is partially accommodated in the sedimentation chamber 130 . The stirring paddle 110 is fixedly connected to the rotating shaft 40 and is used for stirring the sewage in the sedimentation chamber 130 .

The rotating shaft 40 runs through the sedimentation chamber 130. After the medicine is injected into the sedimentation chamber 130, the motor drives the rotating shaft 40 to rotate, and the stirring paddle 110 mixes the medicine with the sewage in the sedimentation chamber 130 evenly. The bulk impurities fall to the bottom of the precipitation chamber 130 under the action of gravity.

In this embodiment, the bottom of the filter box 10 is provided with a second sewage outlet 13 that communicates with the outside world and the sedimentation chamber 130 .

That is, when there are too many impurities at the bottom of the precipitation chamber 130 , the second sewage outlet 13 can be opened to discharge the impurities, so as to facilitate the subsequent impurity precipitation operation of the precipitation chamber 130 .

Embodiment 2

This embodiment provides a domestic sewage treatment device, including the sewage filtering device described in any one of the foregoing embodiments.

The technical advantages of the domestic sewage treatment device provided in this embodiment are the same as those of the above-mentioned sewage filtering device, which will not be repeated here.

It should be noted that, in the case of no conflict, the features of the embodiments of the present invention can be combined with each other.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. A sewage filtering device, characterized in that, comprising a filter box (10), a first filter layer and a scraper (20); The first filter layer is installed on the filter box (10), and the filter box (10) is divided into a first inner cavity (120) and a second inner cavity, and the filter box (10) is provided with sewage an inlet (11), a first sewage outlet (12) and a water outlet (14), the sewage inlet (11) and the first sewage outlet (12) are both connected to the outside world and the first inner cavity (120), The water outlet (14) communicates with the outside world and the second inner cavity, and the scraper (20) is movably arranged in the first inner cavity (120), and is used for removing impurities on the first filter layer Collected to the first sewage outlet (12). 2. The sewage filtering device according to claim 1, characterized in that, the sewage filtering device further comprises a driving device (30) and a rotating shaft (40) drivingly connected with the driving device (30), the driving device (30) is installed outside the filter box (10) and used to drive the rotating shaft (40) to rotate, the rotating shaft (40) is rotatably installed on the filter box (10), and the scraper (20) is fixedly connected on the rotating shaft (40). 3. The sewage filtering device according to claim 2, wherein the first inner cavity (120) is higher than the second inner cavity, the sewage filtering device further comprises a brush (70), and the The brush (70) is fixedly mounted on the scraper (20), and is located between the scraper (20) and the first filter layer. 4. The sewage filtering device according to claim 2, characterized in that, the sewage filtering device further comprises a second filter layer fixedly installed in the filter box (10), the second filter layer The two inner cavities are divided into a sedimentation cavity (130) and a drainage cavity (140), and the drainage port (14) communicates with the outside world and the drainage cavity (140). 5. The sewage filtering device according to claim 4, wherein the first filter layer comprises a first filter screen (50), the second filter layer comprises a filter cotton (80), and the first inner filter layer comprises a filter cotton (80). The chamber (120) communicates with the sedimentation chamber (130) through the first filter screen (50), and the sedimentation chamber (130) communicates with the drainage chamber (140) through the filter cotton (80). 6 . The sewage filtering device according to claim 5 , wherein the first filter layer further comprises a second filter screen ( 60 ), and the mesh hole of the second filter screen ( 60 ) has a smaller aperture than the The aperture of the mesh of the first filter screen (50), the first inner cavity (120) communicates with the drainage cavity (140) through the second filter screen (60). 7. The sewage filtering device according to any one of claims 4-6, characterized in that, the sewage filtering device further comprises a dosing pipe (90) installed in the filter box (10), the dosing The pipe (90) is provided with a spray head (91) accommodated in the precipitation chamber (130), and the medicine adding pipe (90) sprays the medicine for interacting with the sewage through the spray head (91). 8 . The sewage filtering device according to claim 7 , wherein the sewage filtering device further comprises a stirring paddle ( 110 ), the rotating shaft ( 40 ) is partially accommodated in the sedimentation chamber ( 130 ), and the The stirring paddle (110) is fixedly connected with the rotating shaft (40), and is used for stirring the sewage in the sedimentation chamber (130). 9 . The sewage filtering device according to claim 4 , wherein a second sewage outlet ( 13 ) communicating with the outside world and the sedimentation chamber ( 130 ) is provided at the bottom of the filter box ( 10 ). 10 . 10. A domestic sewage treatment device, characterized in that it comprises the sewage filtering device according to any one of claims 1-9.

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