Combined trash holding device for sewage treatment

Abstract

The utility model discloses a combined trash holding device for sewage treatment, which comprises a trash holding tank, a sewage inlet communicated with the inside of the trash holding tank is arranged on one side of the trash holding tank, a pressurizing sewage pump is fixed at the sewage inlet, a rotating shaft is mounted in the trash holding tank in the vertical direction, and the bottom end of the rotating shaft is connected with the trash holding tank through a bearing. A filter screen plate is fixed to the top end of the rotating shaft, a metal outer ring is installed on the periphery of the filter screen plate in a sleeving mode and fixedly connected with the filter screen plate, the periphery of the metal outer ring is connected with a trash holding tank through a bearing, and a sewage outlet is formed in one side of the top end of the trash holding tank and located above the filter screen plate. A horizontally-arranged scraper is fixed to the inner wall of the trash holding tank, the top end of the scraper makes contact with the bottom end face of the filter screen plate, a plurality of power fan blades which are evenly arranged around the axis of the rotating shaft at intervals are fixed to the rotating shaft, and the power fan blades are arranged towards the sewage inlet. The filter screen plate can be driven to rotate, and the filtering efficiency of the filter screen plate is improved under the centrifugal effect and the help of the scraper.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a combined sewage intercepting device for sewage treatment. Background Art

[0002] With the development of society, the negative impact of environmental pollution has become increasingly prominent. Factories and daily life will generate a large amount of sewage, which must be filtered and purified before it can be discharged. Sewage contains a large number of large particles of impurities, and must be filtered or precipitated for preliminary filtration before purification. Since precipitation occupies a large area and has a long cycle, more filters are used for preliminary filtration. The current filters are generally in a static state. After impurities are intercepted on the filter, they are easily accumulated, which seriously affects the filtration efficiency. There is currently no reliable technical solution to solve the above problems. Utility Model Content

[0003] The purpose of the present application is to provide a combined sewage interception device for sewage treatment to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a combined pollution-blocking device for sewage treatment, comprising a pollution-blocking tank, one side of the pollution-blocking tank is provided with a sewage inlet connected to the interior thereof, a booster sewage pump is fixedly installed at the sewage inlet, a rotating shaft is vertically installed inside the pollution-blocking tank, the bottom end of the rotating shaft is connected to the pollution-blocking tank through a bearing, a filter screen is fixedly installed on the top of the rotating shaft, a metal outer ring is sleeved on the outer periphery of the filter screen, the metal outer ring and the filter screen are fixedly connected, the outer periphery of the metal outer ring is connected to the pollution-blocking tank through a bearing, a sewage outlet connected to the interior thereof is provided on one side of the top of the pollution-blocking tank, the sewage outlet is located above the filter screen, a horizontally arranged scraper is fixedly installed on the inner wall of the pollution-blocking tank, the top end of the scraper is in contact with the bottom end surface of the filter screen, a plurality of power fan blades evenly spaced around its axis are fixedly installed on the rotating shaft, and the power fan blades are arranged toward the sewage inlet.

[0005] Preferably, a garbage sedimentation trough is provided inside the trash retaining tank below the power fan blades.

[0006] Preferably, the filter screen is a disc-shaped screen.

[0007] Preferably, a maintenance door is detachably and hermetically mounted on the front side of the dirt retaining tank.

[0008] Preferably, a backwash water pipe is fixedly installed on the top of the trash blocking tank, and the bottom end of the backwash water pipe is vertically connected to a water spray pipe located at the top of the inner cavity of the trash blocking tank.

[0009] Preferably, one side of the bottom end of the trash retaining tank is connected to a garbage outlet, and a valve is fixedly installed on the garbage outlet.

[0010] In summary, the technical effects and advantages of the utility model are:

[0011] In the utility model, sewage is pressurized and pumped into the sewage intercepting tank by the sewage inlet by the pressurized sewage pump, and the pressurized sewage impacts the power fan blades, which drive the rotating shaft to rotate, and the rotating shaft drives the filter screen to rotate. The filter screen intercepts impurities below it, and the sewage is discharged from the sewage outlet above. Under the centrifugal action and the scraping action of the scraper, the filter screen is in a high-efficiency filtering state, thereby improving the filtering efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 A schematic cross-sectional view of a combined sewage interception device for sewage treatment in an embodiment of the present application;

[0014] Figure 2 This is a schematic diagram of the external structure of a combined sewage interception device for sewage treatment in an embodiment of the present application.

[0015] In the figure: 1. sewage tank; 2. sewage inlet; 3. booster sewage pump; 4. rotating shaft; 5. power fan blade; 6. filter screen; 7. metal outer ring; 8. scraper; 9. garbage sedimentation tank; 10. sewage outlet; 11. garbage outlet; 12. backwash water pipe; 13. water spray pipe; 14. maintenance door. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure 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 cannot be understood as a limitation of the present disclosure. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0018] It should also be noted that the standard parts used in this application document can be purchased from the market, and can be customized according to the description in the specification and drawings. Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, and it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to the specific circumstances, and in the absence of clear limitations, machines, parts and equipment can all adopt conventional models in the prior art.

[0019] In this article, the term "comprising" is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0020] Example: Reference Figure 1-2A combined sewage intercepting device for sewage treatment shown in the figure comprises a sewage intercepting tank 1, a sewage inlet 2 communicating with the interior of the sewage intercepting tank 1 is provided on one side of the sewage intercepting tank 1, a pressurized sewage pump 3 is fixedly installed at the sewage inlet 2, a rotating shaft 4 is installed in the interior of the sewage intercepting tank 1 in the vertical direction, the bottom end of the rotating shaft 4 is connected to the sewage intercepting tank 1 through a bearing, a filter screen plate 6 is fixedly installed on the top of the rotating shaft 4, a metal outer ring 7 is sleeved and installed on the outer periphery of the filter screen plate 6, the metal outer ring 7 is fixedly connected to the filter screen plate 6, the outer periphery of the metal outer ring 7 is connected to the sewage intercepting tank 1 through a bearing, a sewage outlet 10 communicating with the interior of the sewage intercepting tank 1 is provided on one side of the top of the sewage intercepting tank 1, and the sewage outlet 10 Located above the filter screen plate 6, a horizontally arranged scraper 8 is fixedly installed on the inner wall of the dirt retaining tank 1, and the top end of the scraper 8 contacts the bottom end surface of the filter screen plate 6. A plurality of power blades 5 evenly spaced around the axis are fixedly installed on the rotating shaft 4, and the power blades 5 are arranged toward the sewage inlet 2. The sewage is pressurized and pumped into the dirt retaining tank through the sewage inlet by the booster sewage pump. The pressurized sewage impacts the power blades, and the power blades drive the rotating shaft to rotate, and the rotating shaft drives the filter screen plate to rotate. The filter screen plate intercepts impurities thereunder, and the sewage is discharged from the upper sewage outlet. Under the centrifugal action and the scraping action of the scraper, the filter screen plate is in a high-efficiency filtering state, thereby improving the filtering efficiency.

[0021] With the above structure, a garbage sedimentation tank 9 is provided inside the garbage tank 1 below the power blade 5 to facilitate sedimentation of filtered garbage.

[0022] According to the above structure: the filter screen plate 6 is a disc-shaped screen plate.

[0023] By means of the above structure, a maintenance door 14 is detachably and hermetically installed on the front side of the dirt retaining tank 1, and the interior can be inspected by opening the maintenance door.

[0024] By means of the above structure: a backwash water pipe 12 is fixedly installed on the top of the dirt retaining tank 1, and the bottom end of the backwash water pipe 12 is vertically connected to a water spray pipe 13 located at the top of the inner cavity of the dirt retaining tank. The backwash water pipe valve is opened, and the water inlet of the sewage inlet is closed. Clean water is sent into the backwash water pipe and sprayed out from the water spray pipe to spray and clean the filter screen.

[0025] By means of the above structure: one side of the bottom end of the waste-blocking tank 1 is connected with a garbage outlet 11 , and a valve is fixedly installed on the garbage outlet 11 .

[0026] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A combined sewage interception device for sewage treatment, comprising a sewage interception tank (1), characterized in that: A sewage inlet (2) communicating with the interior of the trash tank (1) is provided on one side thereof, a booster sewage pump (3) is fixedly installed at the sewage inlet (2), a rotating shaft (4) is installed in the interior of the trash tank (1) in a vertical direction, the bottom end of the rotating shaft (4) is connected to the trash tank (1) via a bearing, a filter screen (6) is fixedly installed on the top end of the rotating shaft (4), a metal outer ring (7) is sleeved and installed on the outer periphery of the filter screen plate (6), the metal outer ring (7) is fixedly connected to the filter screen plate (6), and the metal outer ring (7) is The outer periphery is connected to the dirt retaining tank (1) via a bearing. A sewage outlet (10) communicating with the interior of the dirt retaining tank (1) is provided on one side of the top end of the dirt retaining tank (1). The sewage outlet (10) is located above the filter screen plate (6). A horizontally arranged scraper (8) is fixedly mounted on the inner wall of the dirt retaining tank (1). The top end of the scraper (8) contacts the bottom end surface of the filter screen plate (6). A plurality of power blades (5) evenly spaced around the axis of the rotating shaft (4) are fixedly mounted on the rotating shaft (4). The power blades (5) are arranged toward the sewage inlet (2).

2. A combined sewage interception device for sewage treatment according to claim 1, characterized in that: A garbage sedimentation trough (9) is provided inside the trash retaining tank (1) below the power fan blade (5).

3. The combined sewage intercepting device for sewage treatment according to claim 1 is characterized in that: The filter screen plate (6) is a disc-shaped screen plate.

4. The combined sewage interception device for sewage treatment according to claim 1, characterized in that: The front side of the dirt retaining tank (1) is provided with an inspection door (14) which is detachably and hermetically mounted.

5. The combined sewage interception device for sewage treatment according to claim 1, characterized in that: A backwashing water pipe (12) is fixedly mounted on the top of the dirt retaining tank (1), and the bottom end of the backwashing water pipe (12) is vertically connected to a water spray pipe (13) located at the top of the inner cavity of the dirt retaining tank.

6. The combined sewage interception device for sewage treatment according to claim 1, characterized in that: One side of the bottom end of the waste intercepting tank (1) is connected to a garbage outlet (11), and a valve is fixedly mounted on the garbage outlet (11).

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