Multifunctional combined pipe for aeration, sludge removal, and flushing of wastewater sedimentation tank

Abstract

This multi-functional combined pipe for aeration, sludge discharge, and flushing of wastewater sedimentation tanks consists of a main pipe, a sludge discharge pipe, a working pipe, a high-pressure air pipe, and a high-pressure water pipe. The combined pipe operates aeration, sludge discharge, and flushing using valves. It allows for sludge discharge simultaneously with wastewater sedimentation; aeration and stirring can be performed during simple sludge discharge; and aeration, flushing, and sludge discharge can be carried out simultaneously. The aeration and sludge discharge functions solve the problem of difficult sludge discharge from wastewater sedimentation tanks; the simultaneous aeration, flushing, and sludge discharge function solves the problems of difficult tank cleaning and high toxic gas production in wastewater sedimentation tanks.

Description

Technical Field

[0001] This invention relates to a fast, simple, and energy-saving device for sludge aeration, sludge discharge, and flushing operations in sewage sedimentation tanks during the sewage treatment process—a multi-functional combined pipe for sewage sedimentation tank aeration, sludge discharge, and flushing. Background Technology

[0002] Currently, sedimentation tanks are the main physicochemical treatment unit in wastewater treatment, serving as a crucial pretreatment step for subsequent biological treatment. If sludge removal is incomplete or insufficient after chemical sedimentation, it will affect subsequent wastewater treatment. There are currently two main methods for sludge removal from wastewater sedimentation tanks: pressure sludge removal, which relies on the principle of wastewater level difference to press out the sludge settled at the bottom of the sedimentation tank; and sludge pumping to remove the sludge from the bottom of the sedimentation tank. These two methods are the most practical and commonly used in general wastewater treatment. However, the sludge from tanning wastewater is not homogeneous and contains many foreign objects and debris such as animal hair, fragments of packaging bags, and sealing ropes from packaging bags. Therefore, traditional and commonly used sludge removal methods are not suitable for discharging sludge from tanning wastewater sedimentation tanks. Summary of the Invention

[0003] To address the shortcomings of pressure sludge discharge and sludge pump sludge discharge ineffectively, this invention provides a multi-functional combined pipe for aeration, sludge discharge, and flushing in wastewater sedimentation tanks.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] The combined pipe is composed of tubular components and valves made of PVC material.

[0006] In response to the specific situation that the sludge in the sewage sedimentation tank contains a lot of inorganic matter and is prone to caking, an aeration function was designed so that the sludge deposited at the bottom of the sludge tank can be dispersed by aeration.

[0007] The sludge removal from the sedimentation tank is accomplished using the siphon principle, so no electricity or other auxiliary power is required. Due to its tubular structure, large pollutants, such as animal hair clumps, leather edges, packaging bag fragments, and ropes, which are prone to tangling and clogging the equipment, are eliminated. This combined pipe can completely and thoroughly remove the sludge from the sedimentation tank.

[0008] Sludge in wastewater sedimentation tanks can easily produce toxic gases, especially hydrogen sulfide, under anaerobic conditions, which is a major cause of accidents. Therefore, a function to rinse the sedimentation tank with clean water has been designed to reduce the production of toxic gases and prevent major safety accidents during sedimentation tank maintenance. Attached Figure Description

[0009] The invention will be further described below with reference to the accompanying drawings:

[0010] Figure 1 : is the basic structure diagram; Figure 2 : This is the overall structure diagram. Figure 1 , Figure 2 In the middle: 1. Sludge discharge pipe; 2. Working pipe (2.1, 2.2, 2.3); 3. High-pressure air pipe; 4. High-pressure water pipe; 5. Main pipe; 6. Valve; 7. Valve; 8. Valve; 9. Valve; 10. Valve; 11. Valve; 12. Valve; 13. Valve. Detailed Implementation

[0011] On the main pipe (5), the mud discharge pipe (1) is connected horizontally; and the working pipe (2) is connected vertically.

[0012] 1. Aeration operation: First, close all valves, then open valves (6, 7, 8, 9, 10) on the working pipe (2) to prepare for aeration. Observe that the valves to be opened are in the open state, and open valve (12) on the high-pressure air pipe (3) to aerate the sludge at the bottom of the sedimentation tank.

[0013] 2. Sludge removal operation: Following the aeration operation, first close the valve (12) of the high-pressure air pipe (3), open the valve (13) of the high-pressure water pipe (4) to inject water, close valves (6, 7, 9, 10), leave valve (8), and then open the valve (11) on the sludge removal pipe (1) to drain the sludge from the system. After the drain water flows out of the sludge removal pipe (1), close the valve (13) on the high-pressure water pipe (4). The sludge removal pipe (1) uses the siphon principle to remove the sludge from the bottom of the pipe (2.1). At this time, the valves (6, 7, 8, 9, 10) can be opened successively every 2 minutes, and the sludge in the sedimentation tank will be completely removed.

[0014] 3. Flushing operation: After the sludge sedimentation tank is emptied, close all valves, open valves (6, 7, 8, 9, 10) on the working pipe (2), and then open valve (12) on the high-pressure water pipe (3) to flush the bottom of the tank. Repeat the sludge discharge operation to remove the flushing water.

[0015] 4. Simultaneous operation of flushing, sludge discharge, and aeration: When the sewage sedimentation tank has an effective volume, first close all valves, open valve (11) on the sludge discharge pipe (1), open valves (8) and (6), open valve (13) on the high-pressure water pipe (4) to divert water, close valve (6) after diversion, and realize the sludge discharge function through the working pipe (2.1); open valve (9) to realize the water flushing function through the working pipe (2.2); open valve (10), and then open valve (12) on the high-pressure air pipe (3) to aerate through the working pipe (2.3). At this time, the multi-functional pipe realizes the simultaneous operation of aeration, sludge discharge, and flushing functions through valve control.

[0016] This combined pipe system uses valves to control aeration, sludge discharge, and flushing operations. It can perform sludge discharge operations simultaneously with wastewater sedimentation treatment; it can also perform aeration and stirring when performing sludge discharge operations alone in the wastewater sedimentation tank; or it can perform aeration, flushing, and sludge discharge simultaneously. The aeration and sludge discharge functions of this invention solve the problem of difficult sludge discharge from wastewater sedimentation tanks; and the function of performing aeration, flushing, and sludge discharge simultaneously solves the problems of difficult tank cleaning and large amounts of toxic gas generation in wastewater sedimentation tanks.

Claims

1. A multi-functional combined pipe system for aeration, sludge discharge, and flushing in wastewater sedimentation tanks, consisting of a main pipe, sludge discharge pipe, working pipe, high-pressure air pipe, and high-pressure water pipe, characterized by: The main pipe is vertically connected to the sludge discharge pipe; it is horizontally connected to the working pipe. From the working pipe, three vertical pipes extend into the bottom of the sewage sedimentation tank.

2. The multi-functional combined pipe for aeration, sludge removal, and flushing of the sewage sedimentation tank according to claim 1, characterized in that: The working pipe is equipped with a high-pressure air pipe and a high-pressure water pipe.

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