Sewage pre-treatment device for rain and sewage mixed discharge port

Abstract

The utility model discloses a sewage pretreatment device for a rain and sewage mixed discharge port. The sewage pretreatment device comprises a treatment box, a box cover, a water inlet pipe, a sewage crushing pump and a water outlet pipe, the box cover is fixed to the upper end of the treatment box in a sealed mode, one end of the water inlet pipe is communicated with one side of the upper portion of the treatment box, the other end of the water inlet pipe is connected with the rain and sewage mixed discharging port, and the sewage smashing pump is installed on the water inlet pipe. One end of the water outlet pipe is close to an opening in the upper end of the treatment box, the water outlet pipe and the treatment box are fixedly welded and circumferentially sealed, a filter cover is detachably connected to one end of the water outlet pipe, and a plurality of filter holes are formed in the filter cover; according to the water treatment equipment, impurities mixed in sewage can be crushed and filtered in advance, so that the impurities can be prevented from entering a treatment unit in the water treatment equipment along with the sewage, and the condition that the treatment unit in the water treatment equipment is blocked by the impurities can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment devices, in particular to a sewage pre-treatment device at a rainwater and sewage mixed discharge outlet. Background Art

[0002] At present, when the water treatment devices on the market treat sewage from the mixed rainwater and sewage outlets, the sewage from the mixed rainwater and sewage outlets is directly sent to the water treatment equipment through pipes, and the sewage from the mixed rainwater and sewage outlets is often mixed with various impurities, such as leaves, branches, mud, etc., that is, the impurities mixed in the sewage will directly enter the water treatment equipment with the sewage, which can easily cause the treatment unit in the water treatment equipment to be blocked by impurities. Once the treatment unit in the water treatment equipment is blocked by impurities, the staff is required to disassemble the treatment unit in the water treatment equipment and inspect the treatment unit, which will cause inconvenience to the staff. Utility Model Content

[0003] In view of the shortcomings of the prior art, the utility model provides a sewage pre-treatment device for a mixed rainwater and sewage outlet, which can pre-crush and filter impurities mixed in the sewage, thereby preventing the impurities from entering the treatment unit in the water treatment equipment along with the sewage, that is, it can effectively prevent the treatment unit in the water treatment equipment from being blocked by impurities.

[0004] The utility model discloses a sewage pre-treatment device for a mixed rainwater and sewage outlet, comprising a treatment box, a box cover, a water inlet pipe, a sewage pulverizing pump and a water outlet pipe; the box cover is sealingly fixed to the upper end of the treatment box, one end of the water inlet pipe is communicated with one side of the upper part of the treatment box, the other end of the water inlet pipe is connected with the mixed rainwater and sewage outlet, the sewage pulverizing pump is installed on the water inlet pipe, one end of the water outlet pipe penetrates the lower end of the treatment box from bottom to top and then extends into the treatment box, one end of the water outlet pipe is close to the opening at the upper end of the treatment box, the water outlet pipe is welded and fixed to the treatment box and circumferentially sealed, one end of the water outlet pipe is detachably connected with a filter cover, and the filter cover is provided with a plurality of filter holes.

[0005] By adopting the above structure, the utility model can pre-crush and filter impurities mixed in sewage, thereby preventing the impurities from entering the treatment unit in the water treatment equipment along with the sewage, that is, it can effectively prevent the treatment unit in the water treatment equipment from being blocked by impurities.

[0006] The utility model discloses a sewage pre-treatment device for a mixed rainwater and sewage outlet, wherein a filter cover is sleeved on one end of a water outlet pipe and is threadedly connected to the one end of the water outlet pipe, and a plurality of lugs are circumferentially arranged on the outer wall of the filter cover; after adopting this structure, the filter cover can be conveniently connected to the one end of the water outlet pipe, and can also be conveniently removed from the one end of the water outlet pipe. In addition, after a plurality of lugs are circumferentially arranged on the outer wall of the filter cover, it is convenient to screw the filter cover, that is, to screw the filter cover onto the one end of the water outlet pipe, or to screw the filter cover off from the one end of the water outlet pipe.

[0007] The utility model discloses a sewage pre-treatment device for a mixed rainwater and sewage outlet, wherein a box cover is fastened to the upper end of a treatment box by a plurality of bolts distributed at circumferential intervals, a sealing ring is embedded between the box cover and the treatment box, and the sealing ring is used to seal the gap between the box cover and the treatment box; by adopting this structure, the box cover can be reliably and sealingly fixed to the upper end of the treatment box.

[0008] The utility model discloses a sewage pre-treatment device for a mixed rainwater and sewage outlet, wherein the sewage pre-treatment device for a mixed rainwater and sewage outlet also includes a mud pump and a sewage pipe, one end of the sewage pipe penetrates through the side wall of the treatment box and extends into the treatment box, one end of the sewage pipe is close to the inner bottom of the treatment box, the sewage pipe and the treatment box are welded and fixed and circumferentially sealed, and the mud pump is arranged on the sewage pipe; through the arrangement of the mud pump and the sewage pipe, when a lot of mud accumulates on the inner bottom of the treatment box, the mud pump can be turned on, and at this time, the mud located on the inner bottom of the treatment box can be pumped out from the inner bottom of the treatment box through the sewage pipe, thereby realizing the cleaning of the inside of the treatment box.

[0009] The utility model discloses a sewage pre-treatment device for a mixed rainwater and sewage outlet, wherein an annular guide pipe is arranged inside the treatment box, the lower end of the annular guide pipe is close to the inner bottom of the treatment box, the outer side wall of the annular guide pipe is fixed to the inner side wall of the treatment box, a plurality of circumferentially spaced sewage suction ports are arranged on the lower end surface of the annular guide pipe, and one end of the sewage discharge pipe is connected to the inner cavity of the annular guide pipe; through the arrangement of the annular guide pipe and the plurality of circumferentially spaced sewage suction ports are arranged on the lower end surface of the annular guide pipe, the sewage discharge pipe can more effectively absorb the mud located on the bottom of the treatment box through the annular guide pipe and the plurality of sewage suction ports.

[0010] The utility model discloses a sewage pre-treatment device for a mixed rainwater and sewage outlet, wherein each sewage suction port forms a trumpet-shaped structure which is small at the top and large at the bottom. By adopting the sewage suction port of this shape, when the sewage suction port sucks the mud located on the bottom of the treatment box, the mud accumulated on the bottom of the treatment box can more easily enter the annular guide pipe through the sewage suction port.

[0011] The utility model discloses a sewage pre-treatment device for a mixed rainwater and sewage outlet, in which a plurality of connecting rods spaced circumferentially are arranged between the outer wall of the annular guide pipe and the inner wall of the treatment box, the inner end of each connecting rod is welded and fixed to the outer wall of the annular guide pipe, and the outer end of each connecting rod is welded and fixed to the inner wall of the treatment box; by adopting this structure, the annular guide pipe can be reliably fixed to the inner side of the treatment box. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0013] Figure 1 It is a partial cross-sectional structural schematic diagram of the utility model;

[0014] Figure 2 for Figure 1 Schematic diagram of the structure after enlargement at A in the middle. DETAILED DESCRIPTION

[0015] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0016] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0017] like Figure 1-2As shown, the sewage pre-treatment device for a mixed rainwater and sewage outlet of the utility model comprises a treatment box 1, a box cover 2, a water inlet pipe 3, a sewage pulverizing pump 4 and a water outlet pipe 5; the box cover 2 is sealingly fixed to the upper end of the treatment box 1, one end of the water inlet pipe 3 is communicated with one side of the upper part of the treatment box 1, the other end of the water inlet pipe 3 is connected to the mixed rainwater and sewage outlet, the sewage pulverizing pump 4 is installed on the water inlet pipe 3, one end of the water outlet pipe 5 passes through the lower end of the treatment box 1 from bottom to top and then extends into the treatment box 1, one end of the water outlet pipe 5 is close to the opening at the upper end of the treatment box 1, the water outlet pipe 5 is welded and fixed to the treatment box 1 and circumferentially sealed, and a filter cover 6 is detachably connected to one end of the water outlet pipe 5, and a plurality of filter holes 61 are provided on the filter cover 6.

[0018] The filter cover 6 is sleeved on one end of the water outlet pipe 5 and is threadedly connected to the one end of the water outlet pipe 5. A plurality of lugs 62 are circumferentially arranged on the outer wall of the filter cover 6. By adopting this structure, the filter cover can be conveniently connected to one end of the water outlet pipe, and can also be conveniently removed from one end of the water outlet pipe. In addition, after a plurality of lugs are circumferentially arranged on the outer wall of the filter cover, it is convenient to screw the filter cover, that is, to screw the filter cover onto one end of the water outlet pipe, or to screw the filter cover off from one end of the water outlet pipe.

[0019] The box cover 2 is fastened to the upper end of the processing box 1 by a plurality of bolts 21 distributed at circumferential intervals. A sealing ring 11 is embedded between the box cover 2 and the processing box 1. The sealing ring 11 is used to seal the gap between the box cover 2 and the processing box 1. By adopting this structure, the box cover can be reliably and sealingly fixed to the upper end of the processing box.

[0020] The sewage pre-treatment device at the mixed rainwater and sewage outlet also includes a mud pump 7 and a sewage pipe 8. One end of the sewage pipe 8 penetrates the side wall of the treatment box 1 and then extends into the treatment box 1. One end of the sewage pipe 8 is close to the inner bottom of the treatment box 1. The sewage pipe 8 is welded and fixed to the treatment box 1 and circumferentially sealed. The mud pump 7 is arranged on the sewage pipe 8. Through the arrangement of the mud pump and the sewage pipe, when a lot of mud accumulates on the inner bottom of the treatment box, the mud pump can be turned on. At this time, the mud located on the inner bottom of the treatment box can be pumped out from the inner bottom of the treatment box through the sewage pipe, thereby realizing the cleaning of the inside of the treatment box.

[0021] An annular flow guide pipe 9 is provided inside the treatment box 1, and the lower end of the annular flow guide pipe 9 is close to the inner bottom of the treatment box 1, the outer wall of the annular flow guide pipe 9 is fixed to the inner wall of the treatment box 1, and a plurality of circumferentially spaced sewage suction ports 91 are provided on the lower end surface of the annular flow guide pipe 9, and one end of the sewage discharge pipe 8 is connected to the inner cavity of the annular flow guide pipe 9; through the setting of the annular flow guide pipe and the plurality of circumferentially spaced sewage suction ports are provided on the lower end surface of the annular flow guide pipe, the sewage discharge pipe can more effectively absorb the mud located on the bottom of the treatment box through the annular flow guide pipe and the plurality of sewage suction ports.

[0022] Each suction port 91 is formed into a trumpet-shaped structure that is small at the top and large at the bottom. By adopting this shape of the suction port, when the suction port sucks the mud at the bottom of the treatment box, the mud accumulated at the bottom of the treatment box can more easily enter the annular guide pipe through the suction port.

[0023] A plurality of connecting rods 92 are arranged between the outer wall of the annular guide tube 9 and the inner wall of the processing box 1, and are distributed at circumferential intervals. The inner end of each connecting rod 92 is welded and fixed to the outer wall of the annular guide tube 9, and the outer end of each connecting rod 92 is welded and fixed to the inner wall of the processing box 1. By adopting this structure, the annular guide tube can be reliably fixed to the inner side of the processing box.

[0024] When the utility model is working, the sewage pulverizing pump can extract sewage from the mixed rainwater and sewage outlet through the water inlet pipe. When the sewage flows through the sewage pulverizing pump, the sewage pulverizing pump can pulverize impurities mixed in the sewage (for example, pulverize leaves, branches, and mud blocks mixed in the sewage). Subsequently, the mud formed after the impurities are pulverized can enter the treatment box with the sewage. Since one end of the outlet pipe is close to the opening at the upper end of the treatment box, and a filter cover is connected to one end of the outlet pipe, the mud in the sewage can be precipitated at the inner bottom of the treatment box, and the sewage can flow through the filter cover and be sent to the water treatment equipment through the outlet pipe for further treatment. That is, the utility model can pre-pulverize and filter the impurities mixed in the sewage, so as to prevent the impurities from entering the treatment unit of the water treatment equipment with the sewage, that is, it can effectively prevent the treatment unit of the water treatment equipment from being blocked by impurities; in addition, when a lot of mud is accumulated at the inner bottom of the treatment box, the mud pump can be turned on to extract the sludge from the inner bottom of the treatment box.

[0025] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A sewage pre-treatment device for a mixed rainwater and sewage outlet, characterized in that: The invention comprises a treatment box (1), a box cover (2), a water inlet pipe (3), a sewage pulverizing pump (4) and a water outlet pipe (5); the box cover (2) is sealed and fixed to the upper end of the treatment box (1); one end of the water inlet pipe (3) is communicated with one side of the upper part of the treatment box (1); the other end of the water inlet pipe (3) is connected to a rainwater and sewage mixed discharge port; the sewage pulverizing pump (4) is installed on the water inlet pipe (3); one end of the water outlet pipe (5) penetrates the lower end of the treatment box (1) from bottom to top and then extends into the treatment box (1); one end of the water outlet pipe (5) is close to the opening at the upper end of the treatment box (1); the water outlet pipe (5) is welded and fixed to the treatment box (1) and is circumferentially sealed; one end of the water outlet pipe (5) is detachably connected to a filter cover (6); the filter cover (6) is provided with a plurality of filter holes (61).

2. The sewage pre-treatment device for the mixed rainwater and sewage outlet according to claim 1 is characterized in that: The filter cover (6) is sleeved on one end of the water outlet pipe (5) and is threadedly connected to one end of the water outlet pipe (5). A plurality of lugs (62) are circumferentially arranged on the outer wall of the filter cover (6).

3. The sewage pre-treatment device for the mixed rainwater and sewage outlet according to claim 1 is characterized in that: The box cover (2) is fastened to the upper end of the processing box (1) by means of a plurality of bolts (21) distributed at circumferential intervals, and a sealing ring (11) is embedded between the box cover (2) and the processing box (1), and the sealing ring (11) is used to seal the gap between the box cover (2) and the processing box (1).

4. The sewage pre-treatment device for a mixed rainwater and sewage outlet according to any one of claims 1 to 3, characterized in that: The sewage pre-treatment device for the mixed rainwater and sewage outlet also includes a mud pump (7) and a sewage pipe (8), one end of the sewage pipe (8) penetrates the side wall of the treatment box (1) and extends into the treatment box (1), one end of the sewage pipe (8) is close to the inner bottom of the treatment box (1), the sewage pipe (8) is welded and fixed to the treatment box (1) and circumferentially sealed, and the mud pump (7) is arranged on the sewage pipe (8).

5. The sewage pre-treatment device for the mixed rainwater and sewage outlet according to claim 4 is characterized in that: An annular flow guide pipe (9) is arranged inside the treatment box (1), the lower end of the annular flow guide pipe (9) is close to the inner bottom of the treatment box (1), the outer wall of the annular flow guide pipe (9) is fixed to the inner wall of the treatment box (1), and a plurality of sewage suction ports (91) are arranged on the lower end surface of the annular flow guide pipe (9) at circumferential intervals, and one end of the sewage discharge pipe (8) is connected to the inner cavity of the annular flow guide pipe (9).

6. The sewage pre-treatment device for the mixed rainwater and sewage outlet according to claim 5 is characterized in that: Each of the sewage suction ports (91) is formed into a trumpet-shaped structure that is small at the top and large at the bottom.

7. The sewage pre-treatment device for the mixed rainwater and sewage outlet according to claim 5 is characterized in that: A plurality of connecting rods (92) are arranged between the outer wall of the annular guide tube (9) and the inner wall of the treatment box (1) at circumferential intervals, the inner end of each connecting rod (92) being welded and fixed to the outer wall of the annular guide tube (9), and the outer end of each connecting rod (92) being welded and fixed to the inner wall of the treatment box (1).

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