CN213596014U - Self-cleaning marine sewage treatment and recovery device - Google Patents

Abstract

The utility model belongs to the technical field of sewage treatment, and particularly discloses a self-cleaning marine sewage treatment recovery device, which comprises a water treatment tower, a backwashing water inlet pipe and an air inlet pipe; the treated water inlet is connected to a sewage collecting pipeline, the sewage to be treated enters a water treatment tower, is primarily filtered through a filter screen layer, is adsorbed and purified through a biochar packing layer to obtain treated clear water, and is led out from a treated water output pipeline, the tail end of the treated water output pipeline is connected to a circulating water recycling system, and a backwashing water guide pipe is led in to serve as backwashing water; the treated water enters a membrane filter for filtration after being buffered by a spiral conveying pipeline, and the filtered clean water enters a backwashing water inlet pipe for backwashing after being pressurized; the air inlet pipe can be used for providing aeration requirements of the biochar packing layer and can also be used for pneumatic flushing in the back flushing process.

Description

Self-cleaning marine sewage treatment and recovery device

Technical Field

The utility model relates to a sewage treatment technical field specifically is a marine sewage treatment recovery unit of automatically cleaning.

Background

With the development of shipping industry, the discharge of ship domestic sewage gradually becomes an important cause of water environment pollution and ecological balance destruction. The marine domestic sewage treatment device is a specific treatment device arranged on a ship and a platform for preventing domestic sewage generated by the ship and an ocean platform from polluting sailing water areas, can be used for treating the domestic sewage to enable the domestic sewage to reach the international discharge standard, and can also be used for treating grey water generated on the ship and the platform to prevent the marine environment from being polluted by the ship domestic sewage and the grey water and protect the ecological balance of the ocean.

The biological activated carbon technology is developed on the basis of the activated carbon technology, and the wastewater is treated by utilizing the synergistic effect of activated carbon adsorption and biodegradation. The biological activated carbon technology is to take activated carbon as a carrier, and form BAC by enriching or artificially fixing microorganisms and growing and propagating the microorganisms on the surface of the activated carbon under proper temperature and nutrient conditions. It can simultaneously play the physical adsorption role of the active carbon and the degradation role of the microorganism. Because the water entering the biological activated carbon unit usually has a certain amount of suspended matters, after the biological activated carbon works for a certain period, a suspended matter interception layer formed on the surface or the surface layer of the carbon bed can harden the surface of the carbon bed, so that the resistance of water passing through the carbon bed is gradually increased, when the water surface above the carbon bed rises to a certain height, back washing is carried out, the excessive biological membrane and intercepted micro particles can be fully removed by reasonable back washing, and the biological membrane is difficult to form by frequent back washing. Therefore, the back washing becomes the key of the operation and maintenance of the activated carbon filter, and is an important link for ensuring the successful operation of the activated carbon filter.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a marine sewage treatment recovery unit of automatically cleaning to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a self-cleaning marine sewage treatment and recovery device comprises a water treatment tower, a back washing water inlet pipe and an air inlet pipe; a treated water inlet is formed in one side of the bottom of the water treatment tower, a filter screen layer is arranged above the treated water inlet, a packing layer is arranged above the filter screen layer, and a clear water area is arranged above the packing layer; the side edge of the clean water area is connected with a treated water output pipeline, the treated water output pipeline is connected with a back washing water conduit, and the tail end of the back washing water conduit is connected to a clean water tank; the backwashing water guide pipe is connected with a spiral conveying pipe, the tail end of the spiral conveying pipe is connected to the inlet of a membrane filter, the output end of the membrane filter is connected to a pressure pump, and the output end of the pressure pump is connected to a backwashing water inlet pipe; the back washing water inlet pipe is connected to the bottom of the water treatment tower at the tail end, an air inlet pipe is arranged at the side edge of the back washing water inlet pipe, the air inlet pipe is of a parallel double-pipeline structure, and the tail end of the air inlet pipe is connected to an air pump.

Preferably, the treated water inlet is connected to a sewage collecting pipeline, and an emptying pipeline is arranged at the treated water inlet.

Preferably, the backwash water conduit is provided with a liquid flow control valve.

Preferably, the tail end of the air inlet pipe is connected to an air pump, the air inlet pipe is two parallel double pipelines, outlets at the tail end of the air inlet pipe are combined, and the two pipelines of the air inlet pipe are respectively provided with a gas flow control valve A and a gas flow control valve B.

Preferably, a back flush overflow pipe is arranged on one side above the water treatment tower, and the tail end of the back flush overflow pipe is connected to the treated water inlet.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has simple structure, self-cleaning function, self-circulation and resource waste reduction; the treated water inlet is connected to a sewage collecting pipeline, the sewage to be treated enters a water treatment tower, is primarily filtered through a filter screen layer, is adsorbed and purified through a biochar packing layer to obtain treated clear water, and is led out from a treated water output pipeline, the tail end of the treated water output pipeline is connected to a circulating water recycling system, and a backwashing water guide pipe is led in to serve as backwashing water; the treated water enters a membrane filter for filtration after being buffered by a spiral conveying pipeline, and the filtered clean water enters a backwashing water inlet pipe for backwashing after being pressurized; the air inlet pipe can be used for providing aeration requirements of the biochar packing layer and can also be used for pneumatic flushing in the back flushing process.

Drawings

Fig. 1 is a schematic view of the overall connection structure of the present invention.

In the figure: 1. a water treatment tower; 2. a treated water inlet; 3. a filter screen layer; 4. a filler layer; 5. a clear water zone; 6. a treated water output pipe; 7. a backwash water conduit; 8. a spiral conveying pipe; 9. a membrane filter; 10. a pressure pump; 11. back-flushing water inlet pipe; 12. an air inlet pipe; 13. an air pump; 14. a clear water tank.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1, the present invention provides a technical solution: a self-cleaning marine sewage treatment recovery device comprises a water treatment tower 1, a back washing water inlet pipe 11 and an air inlet pipe 12; a treated water inlet 2 is formed in one side of the bottom of the water treatment tower 1, a filter screen layer 3 is arranged above the treated water inlet 2, a packing layer 4 is arranged above the filter screen layer 3, and a clear water area 5 is arranged above the packing layer 4; the side edge of the clean water area 5 is connected with a treated water output pipeline 6, the treated water output pipeline 6 is connected with a back washing water conduit 7, and the tail end of the back washing water conduit 7 is connected with a clean water tank 14; the backwashing water guide pipe 7 is connected with a spiral conveying pipe 8, the tail end of the spiral conveying pipe 8 is connected to the inlet of a membrane filter 9, the output end of the membrane filter 9 is connected to a pressure pump 10, and the output end of the pressure pump 10 is connected to a backwashing water inlet pipe 11; the tail end of the back washing water inlet pipe 11 is connected to the bottom connecting opening of the water treatment tower 1, an air inlet pipe 12 is arranged at the side edge of the back washing water inlet pipe 11, the air inlet pipe 12 is of a parallel double-pipeline structure, and the tail end of the air inlet pipe 12 is connected to an air pump 13.

Further, the treated water inlet 2 is connected to a sewage collecting pipeline, and an emptying pipeline is arranged at the treated water inlet 2.

Further, a liquid flow control valve is provided on the backwash water conduit 7.

Furthermore, the end of the air inlet pipe 12 is connected to an air pump, the air inlet pipe 12 is two parallel double pipes, the outlets at the end of the air inlet pipe 12 are combined, and the two pipes of the air inlet pipe 12 are respectively provided with a gas flow control valve a and a gas flow control valve B.

Furthermore, a back washing overflow pipe is arranged on one side above the water treatment tower 1, and the tail end of the back washing overflow pipe is connected to the treated water inlet 2.

The working principle is as follows: a treated water inlet 2 is arranged on one side of the bottom of the water treatment tower 1, a filter screen layer 3 is arranged above the treated water inlet 2, a packing layer 4 is arranged above the filter screen layer 3, and a clear water area 5 is arranged above the packing layer 4; the side edge of the clean water area 5 is connected with a treated water output pipeline 6, the treated water output pipeline 6 is connected with a back washing water conduit 7, and the tail end of the back washing water conduit 7 is connected with a clean water tank 14; the treated water inlet 2 is connected to a sewage collecting pipeline, the sewage to be treated enters a water treatment tower 1, is primarily filtered through a filter screen layer 3, is adsorbed and purified through a biochar packing layer 4 to obtain treated clear water, and is led out from a treated water output pipeline 6, the tail end of the treated water output pipeline 6 is connected to a circulating water recycling system, and a backwashing water guide pipe 7 is led in to be used as backwashing water;

the backwashing water guide pipe 7 is connected with a spiral conveying pipe 8, the tail end of the spiral conveying pipe 8 is connected to the inlet of a membrane filter 9, the output end of the membrane filter 9 is connected to a pressure pump 10, and the output end of the pressure pump 10 is connected to a backwashing water inlet pipe 11; the tail end of the back washing water inlet pipe 11 is connected to a connecting opening at the bottom of the water treatment tower 1, the treated water is buffered by a spiral conveying pipeline 8 and then enters a membrane filter 9 for filtering, and the filtered clean water is pressurized and then enters the back washing water inlet pipe 11 for back washing;

the side of the backwashing water inlet pipe 11 is provided with an air inlet pipe 12, the air inlet pipe 12 is of a parallel double-pipeline structure, the tail end of the air inlet pipe 12 is connected to an air pump 13, the tail end of the air inlet pipe 12 is connected to the air pump, the air inlet pipe 12 is of two parallel double pipelines, the outlets of the tail ends of the air inlet pipes 12 are combined, the two pipelines of the air inlet pipe 12 are respectively provided with a gas flow control valve A and a gas flow control valve B, the air inlet pipe 12 can be used for providing aeration requirements of a biochar packing layer and can also be used for pneumatic washing in a backwashing process, and gas flow in the double pipelines is controlled through the gas flow control valve A and the gas flow control valve B, so that the air supply efficiency is adjusted, and the adjustment.

It is worth noting that: the whole device realizes control over the device through the master control button, and the device matched with the control button is common equipment, belongs to the existing mature technology, and is not repeated for the electrical connection relation and the specific circuit structure.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A self-cleaning marine sewage treatment and recovery device comprises a water treatment tower (1), a backwashing water inlet pipe (11) and an air inlet pipe (12); the method is characterized in that: a treated water inlet (2) is formed in one side of the bottom of the water treatment tower (1), a filter screen layer (3) is arranged above the treated water inlet (2), a filler layer (4) is arranged above the filter screen layer (3), and a clear water area (5) is arranged above the filler layer (4); the side edge of the clean water area (5) is connected with a treated water output pipeline (6), the treated water output pipeline (6) is connected with a back washing water conduit (7), and the tail end of the back washing water conduit (7) is connected to a clean water tank (14); the backwashing water guide pipe (7) is connected with a spiral conveying pipe (8), the tail end of the spiral conveying pipe (8) is connected to the inlet of a membrane filter (9), the output end of the membrane filter (9) is connected to a pressure pump (10), and the output end of the pressure pump (10) is connected to a backwashing water inlet pipe (11); the back washing water inlet pipe (11) is connected to the bottom connecting opening of the water treatment tower (1), an air inlet pipe (12) is arranged at the side edge of the back washing water inlet pipe (11), the air inlet pipe (12) is of a parallel double-pipeline structure, and the end of the air inlet pipe (12) is connected to the output end of an air pump (13).

2. The self-cleaning marine wastewater treatment and recovery device of claim 1, wherein: the treated water inlet (2) is connected to a sewage collecting pipeline, and a vent pipeline is arranged at the treated water inlet (2).

3. The self-cleaning marine wastewater treatment and recovery device of claim 1, wherein: and a liquid flow control valve is arranged on the backwashing water conduit (7).

4. The self-cleaning marine wastewater treatment and recovery device of claim 1, wherein: the tail end of the air inlet pipe (12) is connected to an air pump, the air inlet pipe (12) is two parallel double pipelines, outlets at the tail end of the air inlet pipe (12) are combined, and a gas flow control valve A and a gas flow control valve B are respectively arranged on the two pipelines of the air inlet pipe (12).

5. The self-cleaning marine wastewater treatment and recovery device of claim 1, wherein: a back flush overflow pipe is arranged on one side above the water treatment tower (1), and the tail end of the back flush overflow pipe is connected to the treated water inlet (2).

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