Sewage intercepting and filtering device for secondary treatment of rainwater and sewage

Abstract

The utility model discloses a sewage intercepting and filtering device for secondary treatment of rain sewage. The sewage intercepting and filtering device comprises a shell, a sewage intercepting basket is mounted in the shell, and a connecting mechanism is mounted in the center of the sewage intercepting basket; the overflow treatment mechanism is mounted on one side of the sewage interception basket in the shell, so that when external rain sewage is conveyed too fast or too much, water at the tops of the sewage interception basket and the filter element can be conveyed to the sewage interception filter basket through the drainage pipe, and the sewage interception filter basket is the same as the sewage interception basket and the filter element in structure; a water source can be subjected to sewage intercepting and filtering treatment through a sewage intercepting and filtering basket, a connecting mechanism is installed in the center of the sewage intercepting basket, a person can pull the sewage intercepting basket to take out the whole sewage intercepting basket from the interior of a shell, then the person rotates the sewage intercepting basket, and a limiting block in the center of the sewage intercepting basket is moved out of a limiting groove; and then, a worker can replace the filter element, and meanwhile, the worker can clean the whole sewage intercepting basket.

Description

Technical Field

[0001] This utility model relates to the technical field of rainwater and sewage treatment devices, specifically a sewage interception and filtration device for secondary rainwater and sewage treatment. Background Technology

[0002] Generally, rainwater and sewage cannot be fully treated in a single treatment process, so secondary treatment is required to prevent the growth of bacteria in the rainwater and sewage, which could affect subsequent wastewater purification.

[0003] A search of the application "CN210288643U" for "Sewage Interception and Purification Device for Rainwater Inlet" (hereinafter referred to as the prior art) reveals that the prior art involves directly introducing external rainwater into the device for treatment. When there is excessive or rapid flow of external rainwater, the device cannot process the rainwater and sewage in time, which can cause backflow and affect the operation of the device. In addition, the prior art requires multiple steps to remove and process the sewage interception device and filter device inside the device. Utility Model Content

[0004] The purpose of this invention is to provide a sewage interception and filtration device for secondary treatment of rainwater and sewage, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sewage interception and filtration device for secondary treatment of rainwater and sewage, comprising a housing; a sewage interception basket is installed inside the housing, a connecting mechanism is installed at the center of the sewage interception basket, a filter element is installed at the bottom of the sewage interception basket, and an overflow treatment mechanism is installed on one side of the sewage interception basket inside the housing.

[0006] The overflow treatment mechanism includes a drain pipe and a sludge interception filter basket. The drain pipe is installed at equal intervals on one side of the outer shell, and the sludge interception filter basket is installed on the side of the drain pipe away from the sludge interception basket.

[0007] The connecting mechanism includes a limiting block and a limiting groove. The limiting block is provided on one side of the inside of the sludge trap, and the limiting groove is provided on the side of the sludge trap near the limiting block.

[0008] Preferably, the inside of the sludge trap is provided with an arc-shaped plate, and the inside of the arc-shaped plate is provided with through holes at equal intervals.

[0009] Preferably, the top of the sludge trap is equipped with a handle, and a protective cover is installed on the outside of the handle.

[0010] Preferably, the filter element has a pebble layer inside, a gravel layer at the bottom of the pebble layer, and an activated carbon filter layer at the bottom of the gravel layer.

[0011] Preferably, the inner wall of the outer shell is provided with a groove, and the sludge trap and sludge filter basket are provided with a protrusion on the side near the groove.

[0012] Preferably, a cover plate is installed on the top of the outer casing, and conveying pipes are installed on both sides of the outer casing.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model has an overflow treatment mechanism installed on one side of the intercepting basket inside the outer shell. When the external rainwater and sewage are transported too quickly or in large quantities, the intercepting basket and the top of the filter element are respectively provided with a drain pipe. The water at the top of the intercepting basket and the filter element can be transported to the intercepting filter basket through the drain pipe. The intercepting filter basket has the same structure as the intercepting basket and the filter element. The intercepting filter basket can perform interception and filtration treatment on the water source, thereby avoiding the phenomenon of backflow caused by excessive water in the intercepting basket and untimely treatment, which would affect the operation of the device.

[0015] 2. This utility model features a connecting mechanism installed in the center of the trap basket. When the filter element fails to effectively filter rainwater and sewage after prolonged use, personnel can pull the trap basket to remove it entirely from the casing. Then, by rotating the trap basket, the limiting block in the center moves out of the limiting groove, allowing personnel to replace the filter element and clean the trap basket as a whole. This eliminates the need for personnel to remove the trap basket and filter element from the device step by step, thus simplifying its use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of the sludge trap of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention from the front.

[0018] Figure 3 This utility model Figure 1 A magnified schematic diagram of the structure of part A in the diagram;

[0019] Figure 4 This is a top view of the sludge trap portion of this utility model.

[0020] Figure 5 This utility model Figure 1 A magnified schematic diagram of part B.

[0021] In the diagram: 1. Outer shell; 101. Groove; 2. Cover plate; 3. Trash basket; 301. Arc plate; 302. Through hole; 303. Handle; 304. Protective sleeve; 4. Filter element; 401. Gravel layer; 402. Stone layer; 403. Activated carbon filter layer; 5. Conveying pipe; 6. Boss; 7. Overflow treatment mechanism; 701. Drainage pipe; 702. Trash basket; 8. Connecting mechanism; 801. Limiting block; 802. Limiting groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Please see Figure 1-5 An embodiment of this utility model is provided: a sewage interception and filtration device for secondary treatment of rainwater and sewage, including a shell 1; a sewage interception basket 3 is installed inside the shell 1, a connecting mechanism 8 is installed at the center of the sewage interception basket 3, a filter core 4 is installed at the bottom of the sewage interception basket 3, and an overflow treatment mechanism 7 is installed on one side of the sewage interception basket 3 inside the shell 1.

[0026] The overflow treatment mechanism 7 includes a drain pipe 701 and a sludge interception filter basket 702. The drain pipe 701 is installed at equal intervals on one side of the outer casing 1, and the sludge interception filter basket 702 is installed on the side of the drain pipe 701 away from the sludge interception basket 3.

[0027] The connecting mechanism 8 includes a limiting block 801 and a limiting groove 802. The limiting block 801 is provided on one side of the inside of the sludge basket 3, and the limiting groove 802 is provided on the side of the sludge basket 3 near the limiting block 801.

[0028] Specifically, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, personnel transport rainwater and sewage treated once from the outside into the device. The rainwater and sewage then flow into the intercepting basket 3. The arc-shaped plate 301 at the bottom of the intercepting basket 3 can further block residual debris in the rainwater and sewage. The remaining water flows through the through holes 302 inside the arc-shaped plate 301 into the filter element 4 at the bottom for filtration. After being intercepted, the water flows into the gravel layer 402, which can block larger impurities in the water. Then, the remaining water flows into the sand and gravel layer 401, which can block smaller impurities in the water. Finally, the water flows into the activated carbon filter layer 403, which can adsorb small particles attached to the water. When the rainwater and sewage are transported too quickly or in large quantities, the intercepting basket 3 and the filter element 4 are respectively equipped with a drainage pipe 701 on one side of the top. 01. Water from the top of the intercepting basket 3 and filter element 4 can be transported to the intercepting filter basket 702. The intercepting filter basket 702 has the same structure as the intercepting basket 3 and filter element 4. The intercepting filter basket 702 can intercept and filter the water source, thereby preventing the overflow of the device due to excessive water in the intercepting basket 3 and untimely treatment. When the device is used for a long time, the filter element 4 can no longer effectively filter rainwater and sewage. At this time, the personnel can pull the intercepting basket 3 to remove the entire intercepting basket 3 from the inside of the outer shell 1. Then, the personnel can rotate the intercepting basket 3 to move the limiting block 801 in the center of the intercepting basket 3 out of the limiting groove 802. Then, the personnel can replace the filter element 4 and clean the entire intercepting basket 3. This eliminates the need for personnel to remove the intercepting basket 3 and filter element 4 from the inside of the device step by step, thus facilitating the use of the device.

[0029] Furthermore, the inside of the sludge trap 3 is provided with an arc-shaped plate 301, and the inside of the arc-shaped plate 301 is provided with through holes 302 at equal intervals;

[0030] Specifically, such as Figure 4As shown, after the rainwater and sewage undergo the first treatment, they flow into the interior of the intercepting basket 3. Then, the arc-shaped plate 301 at the bottom of the intercepting basket 3 can block the debris remaining in the rainwater and sewage again, while the remaining water will flow into the filter core 4 at the bottom through the through hole 302 inside the arc-shaped plate 301.

[0031] Furthermore, a handle 303 is installed on the top of the waste basket 3, and a protective cover 304 is installed on the outside of the handle 303;

[0032] Specifically, such as Figure 2 As shown, when personnel need to clean the inside of the sludge basket 3 or replace the filter element 4, they can pull the handle 303. When the handle 303 is pulled, the sludge basket 3 at the bottom can be pulled out from the inside of the outer shell 1, which makes it easier for personnel to operate. The protective cover 304 can reduce the friction between the personnel's hands and the handle 303.

[0033] Furthermore, the filter element 4 has a pebble layer 402 inside, a gravel layer 401 at the bottom of the pebble layer 402, and an activated carbon filter layer 403 at the bottom of the gravel layer 401.

[0034] Specifically, such as Figure 1 As shown, after the water source has undergone sewage interception treatment, it will flow into the gravel layer 402, which can block larger impurities in the water. Then the remaining water source will flow into the sand and gravel layer 401, which can block smaller impurities in the water. Finally, the water source will flow into the activated carbon filter layer 403, which can adsorb and treat the tiny particles attached to the water.

[0035] Furthermore, the inner wall of the outer casing 1 is provided with a groove 101, and the sludge trap 3 and the sludge trap filter basket 702 are provided with a protrusion 6 on the side near the groove 101.

[0036] Specifically, such as Figure 3 As shown, before use, the personnel place the sludge trap 3 and the sludge filter basket 702 inside the outer casing 1, and then make the protrusion 6 at the bottom of the sludge trap 3 and the sludge filter basket 702 fit into the groove 101 inside the outer casing 1, so that the position of the sludge trap 3 and the sludge filter basket 702 can be fixed.

[0037] Furthermore, a cover plate 2 is installed on the top of the outer casing 1, and conveying pipes 5 are installed on both sides of the outer casing 1;

[0038] Specifically, such as Figure 1 As shown, when external rainwater and sewage pass through the inside of the device, they will be discharged through the conveying pipes 5 on both sides of the outer casing 1. When personnel need to clean the intercepting basket 3 and the intercepting filter basket 702, they can remove the cover plate 2 from the top of the outer casing 1 and then clean the device inside the outer casing 1.

[0039] Working principle: Before use, personnel place the intercepting basket 3 and the intercepting filter basket 702 inside the outer casing 1, and then fix the protrusions 6 at the bottom of the intercepting basket 3 and the intercepting filter basket 702 into the grooves 101 inside the outer casing 1 to fix their positions. Then, personnel transport rainwater and sewage that has been treated once outside into the device. The rainwater and sewage will flow into the interior of the intercepting basket 3. The arc-shaped plate 301 at the bottom of the intercepting basket 3 can block the remaining debris in the rainwater and sewage again. The remaining water will flow into the filter core 4 at the bottom through the through holes 302 inside the arc-shaped plate 301 for filtration. After the water has been intercepted, it will flow into the gravel layer 402, which can block larger impurities in the water. Then, the remaining water will flow into the sand and gravel layer 401, which can block smaller impurities in the water. Finally, the water will flow into the living water. The activated carbon filter layer 403 can adsorb and treat the tiny particles attached to the water. When the external rainwater and sewage are transported too quickly or in large quantities, the top of the intercepting basket 3 and the filter element 4 are respectively provided with a drain pipe 701. The water at the top of the intercepting basket 3 and the filter element 4 can be transported to the intercepting filter basket 702 through the drain pipe 701. The intercepting filter basket 702 has the same structure as the intercepting basket 3 and the filter element 4. The intercepting filter basket 702 can perform intercepting and filtering treatment on the water source. When the device is used for a long time, the filter element 4 can no longer effectively filter rainwater and sewage. At this time, the personnel can pull the intercepting basket 3 to remove the entire intercepting basket 3 from the inside of the outer shell 1. Then the personnel can rotate the intercepting basket 3 to move the limiting block 801 at the center of the intercepting basket 3 out of the limiting groove 802. Then the personnel can replace the filter element 4 and clean the entire intercepting basket 3.

[0040] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0041] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A sewage interception and filtration device for secondary treatment of rainwater and sewage, comprising a housing (1); characterized in that: A sludge trap (3) is installed inside the outer shell (1). A connecting mechanism (8) is installed at the center of the sludge trap (3). A filter element (4) is installed at the bottom of the sludge trap (3). An overflow treatment mechanism (7) is installed on one side of the sludge trap (3) inside the outer shell (1). The overflow treatment mechanism (7) includes a drain pipe (701) and a sludge trap filter basket (702). The drain pipe (701) is installed at equal intervals on one side of the outer shell (1), and the sludge trap filter basket (702) is installed on the side of the drain pipe (701) away from the sludge trap basket (3). The connecting mechanism (8) includes a limiting block (801) and a limiting groove (802). The limiting block (801) is provided on one side inside the sludge trap (3), and the limiting groove (802) is provided on the side of the sludge trap (3) near the limiting block (801).

2. The sewage interception and filtration device for secondary treatment of rainwater and sewage according to claim 1, characterized in that: The inside of the intercepting basket (3) is provided with an arc-shaped plate (301), and the inside of the arc-shaped plate (301) is provided with through holes (302) at equal intervals.

3. The sewage interception and filtration device for secondary treatment of rainwater and sewage according to claim 1, characterized in that: The top of the sludge trap (3) is fitted with a handle (303), and a protective cover (304) is fitted on the outside of the handle (303).

4. The sewage interception and filtration device for secondary treatment of rainwater and sewage according to claim 1, characterized in that: The filter core (4) has a pebble layer (402) inside, a gravel layer (401) at the bottom of the pebble layer (402), and an activated carbon filter layer (403) at the bottom of the gravel layer (401).

5. The sewage interception and filtration device for secondary treatment of rainwater and sewage according to claim 1, characterized in that: The inner wall of the outer shell (1) is provided with a groove (101), and the sludge trap (3) and the sludge trap filter basket (702) are provided with a boss (6) on the side near the groove (101).

6. The sewage interception and filtration device for secondary treatment of rainwater and sewage according to claim 1, characterized in that: The top of the outer shell (1) is fitted with a cover plate (2), and the two sides of the outer shell (1) are fitted with conveying pipes (5).

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