Sewage treatment system

Abstract

The utility model relates to a sewage treatment system which comprises a collecting box, a primary anaerobic tank, a secondary anaerobic tank and a clean water tank are arranged in the collecting box, the primary anaerobic tank, the secondary anaerobic tank and the clean water tank are separated by partition plates, water flow holes are formed in the partition plates, the primary anaerobic tank is communicated with a water inlet pipe, and the secondary anaerobic tank is communicated with a water outlet pipe. The clean water tank is communicated with a water outlet pipe, an inclined screen is mounted at the top of the primary anaerobic tank, the high side of the inclined screen is aligned with the water inlet pipe, a crusher is mounted on the low side of the inclined screen and comprises a crushing wheel and a motor, the motor is mounted on the outer wall of the collecting box, and the output end of the motor is connected with the crushing wheel and drives the crushing wheel to rotate. The crusher is designed to crush the solid floating objects, so that the solid floating objects are prevented from being accumulated on the inclined screen, the filtering efficiency of the inclined screen is enhanced, the crushed solid objects are easier to decay in the primary anaerobic tank, and the treatment effect of the solid floating objects is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment equipment, in particular to a sewage treatment system. Background Art

[0002] Water treatment equipment includes sewage treatment equipment, which is an industrial equipment that can effectively treat urban domestic sewage, industrial wastewater, etc., and prevent sewage and pollutants from directly flowing into the water, which is of great significance to improving the ecological environment. The current method for treating sewage is to filter it layer by layer, and then perform deep chemical reaction treatment on the sewage. The current filtering method mostly uses a filter screen to directly filter the sewage, and then discharges the sewage into a sedimentation tank for chemical reaction before being discharged. After a long period of use, the filter screen of the filtered water treatment device is easily blocked by solid floating objects, affecting the filtering efficiency. Therefore, the filter screen needs to be disassembled and cleaned. When disassembling the filter screen, the user needs to use tools and consume a certain amount of time to complete it. The efficiency is not high, so it needs to be improved. Utility Model Content

[0003] Based on this, it is necessary to provide a sewage treatment system to address the above problems.

[0004] A sewage treatment system comprises a collecting box, wherein the collecting box comprises a primary anaerobic tank, a secondary anaerobic tank and a clean water tank, wherein the primary anaerobic tank, the secondary anaerobic tank and the clean water tank are separated by a partition, wherein a water flow hole is provided on the partition, wherein the primary anaerobic tank is connected to a water inlet pipe, wherein the clean water tank is connected to a water outlet pipe, wherein an inclined screen is installed on the top of the primary anaerobic tank, wherein the high side of the inclined screen is aligned with the water inlet pipe, wherein a pulverizer is installed on the low side of the inclined screen, wherein the pulverizer comprises a pulverizing wheel and a motor, wherein the motor is installed on the outer wall of the collecting box, wherein the output end of the motor is connected to the pulverizing wheel to drive the pulverizing wheel to rotate.

[0005] Preferably, a carbon screen is further provided at the lower side of the inclined screen, and the carbon screen is arranged horizontally.

[0006] Preferably, a diverter plate is further provided between the inclined screen and the carbon screen.

[0007] Preferably, the diverter plate comprises a plate body and a plurality of diverter tubes, and the plurality of diverter tubes are installed on the lower side of the plate body.

[0008] Preferably, sludge discharge outlets are provided at the bottom of the primary anaerobic tank and the secondary anaerobic tank.

[0009] The utility model is beneficial in that: since the solid floating objects in the urban domestic sewage are easy to clog the filter screen, we add an inclined screen and a mixer above the primary anaerobic tank to crush the solid floating objects to prevent them from accumulating on the inclined screen, thereby enhancing the filtering efficiency of the inclined screen. Moreover, the crushed solid objects are more likely to decay in the primary anaerobic tank, thereby enhancing the treatment effect of the solid floating objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional schematic diagram of a sewage treatment system according to one embodiment;

[0011] Figure 2 A schematic diagram of the structure of a sewage treatment system. DETAILED DESCRIPTION

[0012] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0013] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0014] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0015] like Figures 1-2As shown, a sewage treatment system includes a collecting box 1, wherein the collecting box 1 includes a primary anaerobic tank 11, a secondary anaerobic tank 12 and a clean water tank 13, wherein the primary anaerobic tank 11, the secondary anaerobic tank 12 and the clean water tank 13 are separated by a partition 14, wherein the partition 14 is provided with a water flow hole 141, wherein the primary anaerobic tank 11 is connected to a water inlet pipe 2, wherein the clean water tank 13 is connected to a water outlet pipe 3, wherein an inclined screen 4 is installed on the top of the primary anaerobic tank 11, wherein the high side of the inclined screen 4 is aligned with the water inlet pipe 2, wherein a grinder 5 is installed on the low side of the inclined screen 4, wherein the grinder 5 includes a grinding wheel 51 and a motor 52, wherein the motor 52 is installed on the outer wall of the collecting box 1, wherein the output end of the motor 52 is connected to the grinding wheel 51 to drive the grinding wheel 51 to rotate. Specifically, in this embodiment, sewage enters the primary anaerobic tank 11, the secondary anaerobic tank 12, and the clean water tank 13 in sequence through the water inlet pipe 2, and nitrification reaction is carried out in the primary anaerobic tank 11 and the secondary anaerobic tank 12. The sewage from the biological selection tank is sent to the anoxic biochemical tank for denitrification reaction. The solid impurities in the sewage are precipitated in the primary anaerobic tank 11 and the secondary anaerobic tank 12, and the mud and water are separated. The sludge is deposited and concentrated at the bottom of the primary anaerobic tank 11 and the secondary anaerobic tank 12, and discharged through the sludge valve by liquid pressure. A mixture of tartaric acid and myristic acid in a ratio of 1:1 is added to the clean water tank 13, and 0.01kg of the mixture is added per cubic meter of water. This design uses a partition 14 to separate the primary anaerobic tank 11, the secondary anaerobic tank 12 and the clean water tank 13, and a water flow hole 141 is opened in the middle of the partition 14 to facilitate the sewage to enter in sequence. At the same time, we install an inclined screen 4 below the water inlet pipe 2. The inclined screen 4 adopts a vertical grid. After the water inlet pipe 2 enters with the sewage, it is discharged into the primary anaerobic tank 11. The inclined screen 4 can intercept the solid floating objects carried in the water inlet pipe 2, such as dead branches and leaves, and slide them to the lower end along the inclined screen 4. The solid floating objects are crushed by the crushing machine 5. Specifically, the crushing wheel 51 is driven by the motor 52 to rotate to crush the floating objects. The two ends of the crushing wheel 51 are connected to the collecting box 1 through sealed bearings and sealed. After the solid objects are crushed, they pass through the inclined screen 4 and fall into the primary anaerobic tank, where they are more easily decayed into sludge, thereby enhancing the treatment effect of solid floating objects in sewage.

[0016] like Figure 2 As shown, a carbon screen 6 is also arranged at the lower side of the inclined screen 4, and the carbon screen 6 is arranged horizontally. Specifically, the carbon screen 6 is used to absorb and filter impurities carried in the sewage to improve the sewage treatment effect.

[0017] like Figure 2 As shown, a diverter plate 7 is further provided between the inclined screen 4 and the carbon screen 7. Specifically, the diverter plate 7 is used to divert the sewage falling from the inclined screen 4 to avoid directly flushing the carbon screen 6. The impurities adsorbed by the carbon screen 6 are gathered at the same position, reducing the adsorption effect of the carbon screen, and directly flushing the impurities easily damages the carbon screen 6.

[0018] like Figure 2 As shown, the diverter plate 7 includes a plate body 71 and a plurality of diverter pipes 72, and the plurality of diverter pipes 72 are installed at the lower side of the plate body 71. Specifically, the sewage dripping from the inclined screen 4 is gathered on the horizontal plate body 71, and then diverted and dripped evenly through the diverter pipes 72, so as to avoid the sewage directly washing the inclined screen 4 and then falling, washing the same position of the carbon screen 6, which is easy to cause the impurities of the carbon screen 6 in this area to accumulate and reduce the adsorption capacity.

[0019] Specifically, a sludge discharge outlet is provided at the bottom of the primary anaerobic tank 11 and the secondary anaerobic tank 12 to facilitate the discharge of the sludge accumulated therein. At the same time, the bottom of the primary anaerobic tank 11 and the secondary anaerobic tank 12 can be designed as a conical bottom to facilitate the discharge of sludge from the sludge discharge outlet.

[0020] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A sewage treatment system, characterized in that: The utility model comprises a collecting box, wherein the collecting box comprises a primary anaerobic tank, a secondary anaerobic tank and a clean water tank, wherein the primary anaerobic tank, the secondary anaerobic tank and the clean water tank are separated by a partition, wherein a water flow hole is provided on the partition, wherein the primary anaerobic tank is connected with a water inlet pipe, wherein the clean water tank is connected with a water outlet pipe, wherein an inclined screen is installed on the top of the primary anaerobic tank, wherein the high side of the inclined screen is aligned with the water inlet pipe, wherein a grinder is installed on the low side of the inclined screen, wherein the grinder comprises a grinder wheel and a motor, wherein the motor is installed on the outer wall of the collecting box, wherein the output end of the motor is connected with the grinder wheel to drive the grinder wheel to rotate.

2. A sewage treatment system according to claim 1, characterized in that: A carbon screen is also arranged at the lower side of the inclined screen, and the carbon screen is arranged horizontally.

3. A sewage treatment system according to claim 2, characterized in that: A diverter plate is also provided between the inclined screen and the carbon screen.

4. A sewage treatment system as claimed in claim 3, characterized in that: The diverter plate comprises a plate body and a plurality of diverter tubes, wherein the plurality of diverter tubes are installed at the lower side of the plate body.

5. A sewage treatment system according to claim 1, characterized in that: The bottoms of the primary anaerobic tank and the secondary anaerobic tank are provided with sludge discharge outlets.

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