Biotechnology coupling magnetic flocculation system for rapidly treating urban overflow sewage

Abstract

The utility model relates to the field of sewage treatment, in particular to a biotechnology coupling magnetic flocculation system for quickly treating urban overflow sewage, which comprises a sedimentation tank main body, a sludge discharge pipe, a water discharge pipe and a water inlet pipe, a boss is arranged in the sedimentation tank main body, and the water inlet pipe is used for discharging sewage into the sedimentation tank main body. When a flocculation agent is added into the sedimentation tank main body, generated flocculates are in the annular filter screen, and then during drainage, the flocculates adhere to the interior of the annular filter screen along with water flow or are positioned at an included angle at the bottom of the annular filter screen, and after drainage, the annular filter screen can be driven by the air cylinder to move upwards, so that the flocculates can be discharged out of the sedimentation tank main body. The annular filter screen is separated from the sedimentation tank, so that flocculates on the annular filter screen can be conveniently treated.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field, concretely relates to a biological technology coupling magnetic flocculation system for quickly treating urban overflow sewage. BACKGROUND

[0002] In the biological technology coupling magnetic flocculation system for urban overflow sewage, the sewage sedimentation tank is an important link in the sewage treatment process, and is usually located in the pretreatment stage. The main role of the sewage sedimentation tank is to separate the suspended solids, sand, organic matter and other particulate matters in the water through gravity settling or flotation, add flocculants to the sewage, and separate the harmful substances in the sewage into blocks through the flocculants, so as to achieve the purpose of preliminary purification of water quality.

[0003] For example, a sedimentation tank in Chinese patent application No. CN201220280926.7 realizes further filtration of suspended solids and precipitates in the sedimentation tank that are difficult to precipitate. The filtered water is discharged through the drain.

[0004] However, the suspended solids are still in the sedimentation tank and cannot be discharged. The suspended solids are removed and cleaned by the operator through scraping and other methods, which is not practical and is relatively troublesome.

[0005] In view of the existing problems, a biological technology coupling magnetic flocculation system for quickly treating urban overflow sewage is proposed. CONTENT OF THE UTILITY MODEL

[0006] In order to solve the above problems, the utility model embodiment provides a biological technology coupling magnetic flocculation system for quickly treating urban overflow sewage.

[0007] In order to achieve the above purpose, the utility model embodiment specifically adopts the following technical scheme:

[0008] A biological technology coupling magnetic flocculation system for quickly treating urban overflow sewage, comprising a sedimentation tank main body, a sludge discharge pipe and a water discharge pipe, characterized in that: it further comprises a water inlet pipe, the sedimentation tank main body is provided with a boss, the height of the sewage in the sedimentation tank main body will not be higher than the top end of the boss, the boss is provided in a circular table mode, which facilitates the flocculation of the sewage reaction along the inclined surface of the boss to slide downward, and the water inlet pipe is used to discharge the sewage into the sedimentation tank main body.

[0009] The sedimentation tank main body is provided with an annular filter screen, the annular filter screen is close to the side wall of the sedimentation tank main body, the bottom end of the annular filter screen is attached to the arc-shaped part close to the bottom end of the boss, and the annular filter screen extends upward along the boss.

[0010] Preferably, the top of the boss is connected with a fixed column, the top of the fixed column is connected with an air cylinder, and the annular filter screen and the air cylinder are connected through a connecting device.

[0011] Preferably, the connecting device is connected with the output end of the air cylinder, and the ring-shaped filter screen is lifted by the cooperation of the air cylinder and the connecting device.

[0012] Preferably, the sludge discharge pipe is arranged on the side wall of the sedimentation tank body near the inner bottom, and the water discharge pipe is arranged in communication with the inside of the sedimentation tank body and above the sludge discharge pipe.

[0013] Preferably, the bottom end of the ring-shaped filter screen is attached to the bottom of the sedimentation tank body, the top end of the ring-shaped filter screen is higher than the liquid level of the sewage in the sedimentation tank body, and the ring-shaped filter screen is provided with filter holes.

[0014] The embodiment of the utility model has the advantages of:

[0015] When the flocculating agent is added into the sedimentation tank body, the generated flocculating material is inside the ring-shaped filter screen, and then when the water is discharged, the flocculating material is along with the water flow or adhered to the inside of the ring-shaped filter screen or at the included angle at the bottom of the ring-shaped filter screen, and after the water is discharged, the ring-shaped filter screen is lifted by the air cylinder, so that the ring-shaped filter screen is separated from the sedimentation tank, thereby facilitating the treatment of the flocculating material on the ring-shaped filter screen, and the utility model has high practicability. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 The figure is a structural schematic view of the utility model;

[0017] Fig. 2 The figure is a structural schematic view of the ring-shaped filter screen in the utility model.

[0018] In the figure: 1, sedimentation tank body; 2, water inlet pipe; 3, ring-shaped filter screen; 4, sludge discharge pipe; 5, water discharge pipe; 6, boss; 7, filter hole; 8, air cylinder; 9, connecting device. DETAILED DESCRIPTION

[0019] The preferred embodiments of the utility model will be described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.

[0020] Embodiment 1

[0021] Referring to Figs. 1-2 The embodiment of the utility model discloses a biological technology coupling magnetic flocculation system for rapidly treating urban overflow sewage, which comprises a sedimentation tank body 1 and a water inlet pipe 2. The water inlet pipe 2 discharges the water needing to be treated into the sedimentation tank body 1, and the impurities in the water are coagulated into blocky substances through a flocculation reaction. A boss 6 is arranged at the center of the inside of the sedimentation tank body 1, the boss 6 is in the shape of a circular truncated cone, a ring-shaped filter screen 3 is arranged around the boss 6, a plurality of filter holes 7 are arranged on the ring-shaped filter screen 3, and the ring-shaped filter screen 3 is used for filtering the flocculated blocky substances in the sedimentation tank body 1.

[0022] The sludge discharge pipe 4 is arranged on the sedimentation tank body 1 and is used for discharging the sludge deposited in the sedimentation tank, and the water discharge pipe 5 is arranged on the sedimentation tank body 1 and is used for discharging the water filtered by the annular filter screen 3 out of the sedimentation tank body 1. Preferably, a plurality of water discharge pipes 5 are arranged on the side wall of the sedimentation tank body 1 in a ring shape, so that the flocculation adheres to the side wall of the annular filter screen 3 is dispersed, and the flocculation is not concentrated at a certain position of the annular filter screen 3 when the water is discharged.

[0023] Optionally, the top of the boss 6 is provided with a pneumatic cylinder 8, the output end of the pneumatic cylinder 8 is fixedly connected with a connecting device 9, and the connecting device 9 is fixedly connected with the annular filter screen 3. The bottom end of the annular filter screen 3 is attached to the part of the side wall of the boss 6 close to the bottom, and the block-shaped flocculation under the action of gravity slides along the inclined surface of the boss 6 to the corner at the bottom of the annular filter screen 3. It should be noted that the annular filter screen 3 will not be greatly deformed under the action of gravity of the flocculation, and when the flocculation needs to be treated, the pneumatic cylinder 8 is controlled, the annular filter screen 3 is driven to move upward under the action of the pneumatic cylinder 8, the flocculation can be gathered at the corner at the bottom of the annular filter screen 3, the flocculation can be separated from the liquid, and the operator can conveniently treat the flocculation filtered.

[0024] It should be noted that, in the description of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and is not intended to indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In addition, it should be further pointed out that, in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] The term "comprising" or any other similar word is intended to cover non-exclusive inclusion, so that the process, article or equipment / device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in the process, article or equipment / device.

[0027] Thus far, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without deviating from the principles of the utility model, and the technical schemes after these changes or replacements will all fall within the protection scope of the utility model.

Claims

1. A biological technology coupled magnetic flocculation system for rapid treatment of urban overflow sewage, comprising a sedimentation tank main body (1), a sludge discharge pipe (4) and a water discharge pipe (5), characterized in that: Also include the water inlet pipe (2), the sedimentation tank body (1) is equipped with boss (6), the height of sewage in the sedimentation tank body (1) will not be higher than the top of boss (6), boss (6) is set in the way of circular table, the flocculation of sewage reaction is convenient for sliding down along the inclined plane of boss (6), the water inlet pipe (2) is used to discharge sewage into the sedimentation tank body (1); The sedimentation tank body (1) is equipped with annular filter screen (3), the annular filter screen (3) is close to the side wall of the sedimentation tank body (1), the bottom end of the annular filter screen (3) is close to the arc part of the bottom end of the boss (6), and extends upward along the boss (6).

2. The biological technology coupled magnetic flocculation system for rapid treatment of urban overflow sewage according to claim 1, characterized in that: The top of the boss (6) is connected with a fixed column, the top of the fixed column is connected with a gas cylinder (8), and the annular filter screen (3) and the gas cylinder (8) are connected through a connecting device (9).

3. The biological technology coupled magnetic flocculation system for rapid treatment of urban overflow sewage according to claim 2, characterized in that: The connecting device (9) is connected with the output end of the gas cylinder (8), and the annular filter screen (3) is lifted through the cooperation of the gas cylinder (8) and the connecting device (9).

4. The biological technology coupled magnetic flocculation system for rapid treatment of urban overflow sewage according to claim 1, characterized in that: The sludge discharge pipe (4) is arranged on the side wall close to the inner bottom of the sedimentation tank body (1), and the drain pipe (5) is arranged in communication with the sedimentation tank body (1) and above the sludge discharge pipe (4).

5. The biological technology coupled magnetic flocculation system for rapid treatment of urban overflow sewage according to claim 1, characterized in that: The bottom end of the annular filter screen (3) is close to the bottom of the sedimentation tank body (1), the top end of the annular filter screen (3) is higher than the liquid level of the sewage in the sedimentation tank body (1), and the filter holes (7) are arranged on the annular filter screen (3).

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