Anti-blocking automatic sludge discharging system

Abstract

The utility model relates to the field of industrial wastewater treatment, in particular to an anti-blocking automatic sludge discharge system, which is characterized in that the height of sludge is monitored in real time through a sludge interface instrument, a signal is sent to a programmable logic controller, and when the height of the sludge reaches a preset value, the programmable logic controller triggers an electric sludge discharge valve to be opened to perform sludge discharge operation. After the electric sludge discharge valve is opened, within a set time, the pressure type liquid level sensor detects that the pressure in the sludge bucket is not reduced, which means that the sludge discharge pipe is blocked, the programmable logic controller transmits an instruction to the electric fixed flushing ball valve, the electric fixed flushing ball valve is opened, compressed air enters the bottom of the sludge bucket from the sludge discharge pipe, and the sludge bucket is flushed. Sludge cakes at the bottoms of the sludge discharge pipe and the sludge bucket are scattered by strong airflow. The timeliness of sludge discharge is ensured, and the problems of sludge blockage caused by frequent manual operation and untimely sludge discharge in the sludge discharge process of a traditional sedimentation tank and difficulty in cleaning hardened sludge are solved.

Description

An anti-clogging automatic sludge removal system Technical Field

[0001] This utility model relates to the field of industrial wastewater treatment technology, and in particular to an anti-clogging automatic sludge discharge system. Background Technology

[0002] With the acceleration of industrialization and urbanization, the demand for water treatment is increasing daily. Sedimentation tanks, as a crucial component of water treatment systems, directly impact the effectiveness of the entire treatment process through their efficiency and stability. Traditional sedimentation tanks suffer from problems such as frequent manual operation during sludge removal, sludge blockage due to untimely sludge removal, and difficulty in cleaning hardened sludge, severely affecting treatment efficiency and operating costs. Therefore, developing a highly efficient, automated, and anti-clogging sludge removal technology is of great significance for improving sedimentation tank performance, reducing maintenance costs, and ensuring water quality safety. Summary of the Invention

[0003] To address the problems of frequent manual operation, untimely sludge discharge leading to sludge blockage, and difficulty in cleaning hardened sludge during the sludge discharge process in traditional sedimentation tanks.

[0004] This utility model provides an anti-clogging automatic sludge discharge system, including an automatic control system, a sedimentation tank, a sludge discharge pipe, and a fixed flushing air pipe. The automatic control system includes an electrically connected programmable logic controller (PLC), a pressure level sensor, an electric sludge discharge valve, a sludge interface meter, and an electric fixed flushing ball valve. The PLC is connected to the outside of the sedimentation tank. The sedimentation tank has at least one sludge hopper. The pressure level sensor is installed on one side of the bottom of the sludge hopper, and the other side of the bottom of the sludge hopper is connected to the sludge discharge pipe. The electric sludge discharge valve is located on the sludge discharge pipe. The sludge interface meter is located above the sludge hopper and is used to monitor the sludge height. One end of the fixed flushing air pipe is connected to the sludge discharge pipe, and the other end of the fixed flushing air pipe is connected to compressed air. The electric fixed flushing ball valve is located on the fixed flushing air pipe.

[0005] Preferably, an anti-clogging automatic sludge discharge system further includes a mobile flushing air pipe, which is equipped with a mobile flushing ball valve, and one end of the mobile flushing air pipe is connected to an air inlet hose.

[0006] Preferably, both the electric mud discharge valve and the electric fixed flushing ball valve are equipped with handwheels.

[0007] Preferably, the side wall of the mud hopper is provided with a nozzle, and the nozzle is electrically connected to the automatic control system.

[0008] Preferably, a coarse-mesh filter screen is provided at the connection between the mud hopper and the mud discharge pipe.

[0009] Preferably, the automatic control system also includes an alarm light, which is electrically connected to a programmable logic controller.

[0010] Preferably, the automatic control system further includes a touch screen, and the touch screen and the programmable logic controller are electrically connected.

[0011] The beneficial effects of this invention are reflected in the fact that the sludge height is monitored in real time by a sludge interface meter, and a signal is sent to a programmable logic controller (PLC). When the sludge height reaches a preset value, the PLC triggers the electric sludge discharge valve to open, initiating sludge discharge. After the electric sludge discharge valve is opened, if the pressure level sensor detects that the pressure inside the sludge hopper has not decreased within a set time, it indicates that the sludge discharge pipe is blocked. The PLC then transmits a command to the electric fixed flushing ball valve, opening it. Compressed air enters from the sludge discharge pipe to the bottom of the sludge hopper, and the strong airflow breaks up the sludge clumps at the bottom of the sludge discharge pipe and hopper. This ensures timely sludge discharge and solves the problems of frequent manual operation, untimely sludge discharge leading to sludge blockage, and difficulty in cleaning compacted sludge in traditional sedimentation tanks. Attached Figure Description

[0012] Figure 1 is a top view of an anti-clogging automatic sludge discharge system provided by this utility model.

[0013] In the diagram: 1-Automatic control system; 11-Programmable logic controller; 12-Pressure level sensor; 13-Electric sludge discharge valve; 14-Sludge interface meter; 15-Electric fixed flushing ball valve; 2-Sedimentation tank; 3-Sludge discharge pipe; 4-Fixed flushing air pipe; 5-Sludge hopper; 6-Mobile flushing air pipe; 7-Mobile flushing ball valve; 8-Air inlet hose. Detailed Implementation

[0014] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0015] Referring to Figure 1, an anti-clogging automatic sludge discharge system includes an automatic control system 1, a sedimentation tank 2, a sludge discharge pipe 3, and a fixed flushing air pipe 4. The automatic control system 1 includes an electrically connected programmable logic controller 11, a pressure level sensor 12, an electric sludge discharge valve 13, a sludge interface meter 14, and an electric fixed flushing ball valve 15. The programmable logic controller 11 is connected to the outside of the sedimentation tank 2. The sedimentation tank 2 has at least one sludge hopper 5. The pressure level sensor 12 is installed on one side of the bottom of the sludge hopper 5, and the other side of the bottom of the sludge hopper 5 is connected to the sludge discharge pipe 3. The electric sludge discharge valve 13 is located on the sludge discharge pipe 3. The sludge interface meter 14 is located above the sludge hopper 5 and is used to monitor the sludge height. One end of the fixed flushing air pipe 4 is connected to the sludge discharge pipe 3, and the other end of the fixed flushing air pipe 4 is connected to compressed air. The electric fixed flushing ball valve 15 is located on the fixed flushing air pipe 4.

[0016] The sludge height is monitored in real time by the sludge interface meter 14, and a signal is sent to the programmable logic controller 11. When the sludge height reaches a preset value, the programmable logic controller 11 triggers the electric sludge discharge valve 13 to open, initiating sludge discharge. After the electric sludge discharge valve 13 is opened, if the pressure level sensor 12 detects that the pressure inside the sludge hopper 5 has not decreased within a set time, it means that the sludge discharge pipe 3 is blocked. The programmable logic controller 11 transmits a command to the electric fixed flushing ball valve 15, opening the electric fixed flushing ball valve 15. Compressed air enters from the sludge discharge pipe 3 to the bottom of the sludge hopper 5, and the strong airflow breaks up the sludge clumps at the bottom of the sludge discharge pipe 3 and the sludge hopper 5. This ensures timely sludge discharge and solves the problems of frequent manual operation, untimely sludge discharge leading to sludge blockage, and difficulty in cleaning compacted sludge in traditional sedimentation tanks 2.

[0017] Specifically, the sludge interface device 14 is fixed above the sludge hopper 5 by a support component. When the sludge hopper 5 is full of sludge, the sludge interface device 14 and the sludge liquid surface maintain a distance of at least 1 meter.

[0018] In some embodiments, an anti-clogging automatic sludge removal system further includes a movable flushing air pipe 6, which is equipped with a movable flushing ball valve 7, and one end of the movable flushing air pipe 6 is connected to an air inlet hose 8.

[0019] The mobile flushing air pipe 6 is connected to compressed air via an air inlet hose 8, which can blow away the hardened sludge at any location in the sedimentation tank 2, thereby improving the cleaning effect.

[0020] Preferably, both the electric mud discharge valve 13 and the electric fixed flushing ball valve 15 are equipped with handwheels.

[0021] The handwheel setting allows for manual opening or closing of the electric mud discharge valve 13 and the electric fixed flushing ball valve 15 in case of malfunction of the automated control system or when maintenance is required, ensuring the flexibility and safety of the system.

[0022] In some embodiments, the side wall of the mud hopper 5 is provided with a nozzle, which is electrically connected to the automatic control system 1.

[0023] When the sludge height reaches the preset value, the programmable logic controller 11 will also trigger the nozzle to open, and the nozzle will flush the side wall of the sludge hopper 5 to break up the hardened sludge and assist in the sludge discharge operation.

[0024] As one way to control the opening and closing of the nozzles using the programmable logic controller 11, the nozzles are connected to the same water pipe. A solenoid valve is installed on the water pipe, and the solenoid valve is electrically connected to the programmable logic controller 11 to control the opening and closing of the nozzles.

[0025] In some embodiments, a coarse-mesh filter screen is provided at the connection between the mud hopper 5 and the mud discharge pipe 3.

[0026] By setting up a coarse-mesh filter, excessively large sand and gravel can be prevented from entering the sludge discharge pipe 3 and causing blockage.

[0027] In some embodiments, the automatic control system 1 also includes an alarm light, which is electrically connected to the programmable logic controller 11.

[0028] When the automatic control system 1 detects an abnormal situation, such as when the pressure level sensor 12 detects that the pressure in the mud hopper 5 exceeds the threshold and the pressure does not decrease within a set time after the electric fixed flushing ball valve 15 is opened, the programmable logic controller 11 can notify the on-site operators by triggering an alarm light to reduce potential risks and losses.

[0029] In some embodiments, the automatic control system 1 further includes a touch screen, which is electrically connected to the programmable logic controller 11.

[0030] By setting up a touch screen, operators can more easily interact with the automatic control system 1, set parameters and alarm information, and view the status of the automatic control system 1, such as the readings of the pressure level sensor 12 or the sludge interface meter 14.

[0031] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0032] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this invention. It will be clearly understood by those skilled in the art that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-clogging automatic sludge discharge system, characterized in that: It includes an automatic control system, a sedimentation tank, a sludge discharge pipe, and a fixed flushing air pipe. The automatic control system includes an electrically connected programmable logic controller (PLC), a pressure level sensor, an electric sludge discharge valve, a sludge interface meter, and an electric fixed flushing ball valve. The PLC is connected to the outside of the sedimentation tank. The sedimentation tank has at least one sludge hopper. The pressure level sensor is installed on one side of the bottom of the sludge hopper, and the other side of the bottom of the sludge hopper is connected to the sludge discharge pipe. The electric sludge discharge valve is located on the sludge discharge pipe. The sludge interface meter is located above the sludge hopper and is used to monitor the sludge height. One end of the fixed flushing air pipe is connected to the sludge discharge pipe, and the other end of the fixed flushing air pipe is connected to compressed air. The electric fixed flushing ball valve is located on the fixed flushing air pipe.

2. The anti-clogging automatic sludge discharge system according to claim 1, characterized in that: It also includes a mobile flushing air pipe, which is equipped with a mobile flushing ball valve, and one end of the mobile flushing air pipe is connected to an air inlet hose.

3. The anti-clogging automatic sludge discharge system according to claim 1 or 2, characterized in that: Both the electric mud discharge valve and the electric fixed flushing ball valve are equipped with handwheels.

4. The anti-clogging automatic sludge discharge system according to claim 1, characterized in that: The mud hopper is equipped with nozzles on its side wall, and the nozzles are electrically connected to the automatic control system.

5. The anti-clogging automatic sludge discharge system according to claim 1, characterized in that: A coarse-mesh filter screen is provided at the connection between the mud hopper and the mud discharge pipe.

6. The anti-clogging automatic sludge discharge system according to claim 1, characterized in that: The automatic control system also includes an alarm light, which is electrically connected to a programmable logic controller.

7. The anti-clogging automatic sludge discharge system according to claim 1, characterized in that: The automatic control system also includes a touch screen, which is electrically connected to a programmable logic controller.

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