Automatic foam elimination control system for wastewater surface

Abstract

This application discloses an automatic foam elimination control system for wastewater surface, belonging to the field of wastewater treatment technology. This application includes a reaction chamber, which contains an additive component and an air extraction pipe. The reaction chamber is typically suspended at the wastewater discharge outlet. The air extraction pipe can adsorb foam into the reaction chamber for elimination. This application can also automatically detect the effect of foam elimination and automatically add defoamer to the reaction chamber, thereby improving the foam elimination efficiency in wastewater, saving labor and the amount of defoamer used, and improving the utilization rate of defoamer.

Description

Technical Field

[0001] This invention relates to an automatic foam removal control system for wastewater surfaces, specifically a control system that automatically adsorbs and removes foam at wastewater discharge outlets, belonging to the technical field of wastewater treatment. Background Technology

[0002] With the development of modern society, more and more wastewater is being discharged into industry. Large amounts of foam often accumulate in wastewater ponds or at wastewater discharge outlets, causing the liquid level to rise and even overflow. To eliminate the impact of foam, people often spray defoamer into the foam at regular intervals, which is time-consuming and labor-intensive. Moreover, it is not possible to accurately control the amount of defoamer sprayed based on the amount of foam. At the same time, due to the fluidity of wastewater, the defoamer also flows with the wastewater, thus reducing the utilization rate of the defoamer. To address these issues, some people in the field have developed an automatic foam elimination control system for wastewater surfaces to overcome the problems mentioned in the background technology. Summary of the Invention

[0003] The technical problem to be solved by this invention is to provide an automatic foam elimination control system for sewage surface, which addresses the above-mentioned shortcomings. This invention is installed at the sewage discharge outlet and can adsorb and eliminate foam on the surface of sewage flowing through it. This invention can also automatically detect the foam elimination effect and automatically control the amount of defoamer added, saving labor and resources and improving the efficiency of foam elimination on sewage surface.

[0004] To solve the above technical problems, the present invention adopts the following technical solution:

[0005] The wastewater surface foam automatic elimination control system includes a reaction chamber. A filter screen with a hollow mesh structure and a wedge shape is installed on the upper surface of the reaction chamber. Defoaming walls are fixed to the inner walls of the reaction chamber. The defoaming walls are a set and have a relative structure. The defoaming walls have an extension to the lower part of the reaction chamber with a gap in the middle. The defoaming walls are hollow inside. The upper surface has a hollow mesh structure and is filled with sponge. An additive component is also fixed to the lower surface.

[0006] Furthermore, the adding component includes a feeding bin, which is funnel-shaped. A feeding motor is fixedly connected to the upper surface of the feeding bin, and a rotating shaft is fixedly connected to the lower surface of the feeding motor. The rotating shaft is located inside the feeding bin, and a spiral blade is fixedly connected to the surface of the rotating shaft. A triangular plate is also provided at the feeding port of the feeding bin. The triangular plate is fixedly connected to the surface of the rotating shaft, and a drive rod is fixedly connected to the upper surface of the triangular plate. The drive rod is in the form of a crank arm and extends to the lower part of the triangular plate.

[0007] Furthermore, a scraper is provided on the inner wall of the feeding hopper. The scraper is connected to a rotating shaft via a crossbar. A turntable is also provided below the feeding port of the feeding hopper. The two are sealed together, and the turntable can rotate below the feeding hopper.

[0008] Furthermore, a material discharge through hole is opened at the center of the turntable, and rotating grooves are distributed on opposite sides inside the turntable, with opposite rotation directions. A column is embedded in the rotating groove, and the upper end of the column extends to both sides of the rotating groove. A sealing plate is fixedly connected to the bottom of the column, and protrusions are distributed on both sides of the sealing plate. A spring is connected between the protrusions of the two sealing plates.

[0009] Furthermore, a drive groove is provided on one side of the turntable, which is located between the two rotating grooves. The drive rod extends into the drive groove, and a cover plate is provided on the upper surface of the drive groove, which is fixed to the surface of the drive rod.

[0010] Furthermore, an antifoaming pump and a liquid level sensor are also installed on the bottom wall of the reaction chamber. The antifoaming pump is connected to the sponge in the antifoaming wall through a pipe.

[0011] Furthermore, a drain pump is also provided on the bottom wall of the reaction chamber, the outlet of which is connected to a drain pipe and a drain valve is provided on the drain pipe. An inlet pipe is also fixedly connected to the upper side of the reaction chamber and an inlet valve is provided on the inlet pipe.

[0012] Furthermore, an exhaust pipe is provided below the defoaming wall. The exhaust pipe extends outside the reaction chamber and extends to the top of the reaction chamber. An exhaust fan is provided inside the exhaust pipe, and filter cotton is provided at the inlet of the exhaust pipe. A suspension component is also provided inside the reaction chamber. The suspension component is an inverted U-shaped body. A light sensor is fixed to the lower surface of the upper arm of the suspension component, and a light source is fixed to the upper surface of the lower arm of the suspension component.

[0013] Furthermore, airbags are fixed to the lower sides of the reaction chamber, which allows the reaction chamber to suspend in the sewage, and the lower end of the filter screen on the surface of the reaction chamber is located exactly on the surface of the sewage.

[0014] Furthermore, it also includes a central controller, which is connected to an input section and an output section. The central controller is used to receive data detected by the input section and send operating instructions to the output section to realize the automated operation of each part within the wastewater surface foam automatic elimination control system. The central controller is also connected to an operation screen, which is used to display the operating status and parameters of each part within the wastewater surface foam automatic elimination control system.

[0015] The present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0016] 1. The present invention is equipped with a reaction box, with airbags fixed to the lower sides of the reaction box. The airbags can suspend the reaction box on the surface of the sewage. A filter screen is provided on the upper surface of the reaction box. An air extraction pipe is also connected inside the reaction box. The air extraction pipe can adsorb the foam on the surface of the sewage into the reaction box for elimination, prevent foam from overflowing, and improve the foam elimination effect.

[0017] 2. The reaction chamber of this invention is also equipped with a foam thickness detection structure, which can detect the effect after foam elimination. This invention is also equipped with an addition component, which can control the addition component to add defoamer into the reaction chamber at regular intervals and in quantitative amounts according to the thickness of foam elimination, thereby improving the efficiency of defoamer use and saving the amount of defoamer used. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale and orientation.

[0019] Figure 1 This is a cross-sectional view of the structural connection of the present invention;

[0020] Figure 2 This is a cross-sectional view of the feeding hopper structure of the present invention;

[0021] Figure 3 This is a bottom view of the turntable structure connection of the present invention;

[0022] Figure 4 This is a schematic diagram of the electrical network connection principle of the central controller of the present invention.

[0023] In the diagram: 1-Reaction chamber, 2-Filter screen, 3-Defoaming wall, 4-Adding component, 5-Airbag, 6-Suspension component, 7-Light sensor, 8-Light source, 9-Exhaust pipe, 10-Exhaust fan, 11-Drain pipe, 12-Drain valve, 13-Drain pump, 14-Inlet pipe, 15-Inlet valve, 16-Defoaming pump, 17-Level sensor, 18-Feeding bin, 19-Discharge motor, 20-Rotating shaft, 21-Scraper, 22-Triangular plate, 23-Drive rod, 24-Turntable, 25-Sealing plate, 26-Drive groove, 27-Cover plate, 28-Rotating groove, 29-Column, 30-Filter cotton. Detailed Implementation

[0024] like Figure 1 As shown, the automatic foam elimination control system for wastewater surface includes a reaction chamber 1. A filter screen 2 is provided on the upper surface of the reaction chamber 1. The filter screen 2 has a hollow mesh structure and is wedge-shaped. Defoaming walls 3 are fixed to the inner walls of the reaction chamber 1. The defoaming walls 3 are a group and have a relative structure. The defoaming walls 3 have an extension to the lower part of the reaction chamber 1 and a gap in the middle. The interior of the defoaming walls 3 is hollow. The upper surface has a hollow mesh structure and is filled with sponge. An additive component 4 is also fixed to the lower surface. The additive component 4 is used to add defoaming agent into the reaction chamber 1.

[0025] like Figure 2 and Figure 3As shown, the adding component 4 includes a feeding bin 18, which is funnel-shaped and used to store powdered defoamer. A feeding motor 19 is fixedly connected to the upper surface of the feeding bin 18, and a rotating shaft 20 is fixedly connected to the lower part of the feeding motor 19. The rotating shaft 20 is located inside the feeding bin 18, and a spiral blade is fixedly connected to the surface of the rotating shaft 20. A triangular plate 22 is also provided at the feeding port of the feeding bin 18. The triangular plate 22 is fixedly connected to the surface of the rotating shaft 20, and a drive rod 23 is fixedly connected to the upper surface of the triangular plate 22. The drive rod 23 is in the shape of a crank arm and extends to the lower part of the triangular plate 22.

[0026] The inner wall of the feeding bin 18 is also provided with a scraper 21, which is connected to the rotating shaft 20 through a crossbar. A turntable 24 is also provided below the discharge port of the feeding bin 18. The two are sealed together and the turntable 24 can rotate below the feeding bin 18. A discharge through hole is opened in the center of the turntable 24. Rotating grooves 28 are distributed on opposite sides of the turntable 24 and rotate in opposite directions. A column 29 is embedded in the rotating groove 28. The upper end of the column 29 extends to both sides of the rotating groove 28. A sealing plate 25 is fixedly connected to the lower part of the column 29. Protrusions are distributed on both sides of the sealing plate 25. A spring is connected between the protrusions of the two sealing plates 25. Normally, the sealing plates 25 are tightly pressed together under the action of the spring, blocking the discharge through hole in the center of the turntable 24.

[0027] A drive groove 26 is also provided on one side of the turntable 24. The drive groove 26 is located between the two rotating grooves 28. The drive rod 23 extends into the drive groove 26. A cover plate 27 is also provided on the upper surface of the drive groove 26. The cover plate 27 is fixed to the surface of the drive rod 23. When defoamer needs to be added to the reaction tank 1, the feeding motor 19 starts to rotate, the rotating shaft 20 rotates, the triangular plate 22 and the drive rod 23 rotate, and the drive rod 23 rotates within the drive groove 26. When it passes one end of the drive groove 26, it drives the turntable 24 to rotate. The rotation of the turntable 24 drives the column 29 to move within the rotating groove 28. Due to the different rotation direction relative to the rotating groove 28, the column 29 is driven towards the turntable. The separation of the two sides of 24 causes the sealing plate 25 to separate to both sides, the central discharge hole of the turntable 24 opens, and the defoamer falls into the reaction chamber 1. While the rotating shaft 20 rotates, the scraper 21 and the triangular plate 22 also rotate. The scraper 21 scrapes off the defoamer attached to the inner wall of the feeding bin 18, and the rotation of the triangular plate 22 disperses the defoamer gathered above the central discharge hole of the turntable 24, making it easier for the defoamer to fall. When the defoamer is added, the feeding motor 19 stops rotating, and the sealing plate 25 gathers towards the middle under the action of the spring. The sealing plate 25 blocks the discharge hole in the turntable 24. At the same time, the turntable 24 rotates, and the drive rod 23 also moves to the other end of the drive groove 26.

[0028] like Figure 1As shown, the bottom wall of the reaction chamber 1 is also equipped with a defoaming pump 16 and a liquid level sensor 17. The defoaming pump 16 is connected to the sponge in the defoaming wall 3 through a pipe. The defoaming pump 16 is used to extract the water containing defoaming agent in the reaction chamber 1 and flow it into the sponge in the defoaming wall 3. The liquid level sensor 17 is used to detect the liquid level in the reaction chamber 1.

[0029] The bottom wall of the reaction tank 1 is also equipped with a drain pump 13, the outlet of which is connected to a drain pipe 11. The drain pipe 11 is also equipped with a drain valve 12. When the water level in the reaction tank 1 is too high, the drain pump 13 and the drain valve 12 open to drain the excess water from the reaction tank 1. The upper part of one side of the reaction tank 1 is also fixed with an inlet pipe 14, which is also equipped with an inlet valve 15. The inlet pipe 14 is generally submerged in sewage. When the liquid level in the reaction tank 1 is too low, the inlet valve 15 opens to replenish water into the reaction tank 1 through the inlet pipe 14. When the set liquid level is reached, the inlet valve 15 closes.

[0030] Below the defoaming wall 3, there is also an exhaust pipe 9. The exhaust pipe 9 extends outside the reaction chamber 1 and extends to the top of the reaction chamber 1. An exhaust fan 10 is installed inside the exhaust pipe 9. A filter cotton 30 is also installed at the inlet of the exhaust pipe 9. The reaction chamber 1 is also equipped with a suspension component 6. The suspension component 6 is an inverted U-shaped body. A light sensor 7 is fixed to the lower surface of the upper arm of the suspension component 6, and a light source 8 is fixed to the upper surface of the lower arm of the suspension component 6. The light sensor 7 is used to detect the intensity of the light emitted by the light source 8 and convert it into a corresponding voltage signal. The suspension component 6 is normally suspended on the water surface in the reaction chamber 1. When there is too much foam in the reaction chamber 1, it enters the suspension component 6. The light emitted by the light source 8 will diffuse after passing through the foam, resulting in low light transmittance. The magnitude of the voltage signal detected by the light sensor 7 is used to control whether defoamer needs to be added to the reaction chamber 1.

[0031] Airbags 5 are fixed to the lower sides of the reaction chamber 1. The airbags 5 are used to suspend the reaction chamber 1 in the sewage. The lower end of the filter screen 2 on the surface of the reaction chamber 1 is exactly on the surface of the sewage. Then, the foam on the surface of the sewage rises along the filter screen 2 under the drive of the water flow. The exhaust fan 10 starts and sucks the foam on the surface of the filter screen 2 into the surface of the defoaming wall 3 inside the reaction chamber 1. At the same time, the defoaming pump 16 starts and sprays water containing defoaming agent onto the surface of the defoaming wall 3. The foam on the surface of the defoaming wall 3 breaks and turns into flowing water that drips into the reaction chamber 1. As the water level in the reaction chamber 1 increases, the drain pump 13 is turned on and the reaction chamber 1 discharges excess water to the outside. When the set liquid level is reached, the drain pump 13 is turned off and the feeding motor 19 is turned on for a set time to add powdered defoaming agent into the reaction chamber 1. This process is repeated.

[0032] like Figure 4As shown, the automatic surface foam elimination control system for wastewater also includes a central controller. The central controller is connected to an input section and an output section. The central controller is used to receive data detected by the input section and send operating instructions to the output section to realize the automated operation of each part within the automatic surface foam elimination control system for wastewater. The central controller is also connected to an operation screen, which is used to display the operating status and parameters of each part within the automatic surface foam elimination control system for wastewater.

[0033] The input section includes a liquid level sensor and a light sensor. The input section is used to detect the operating data within the automatic foam elimination control system for wastewater surfaces. The output section includes a light source, an exhaust fan, a drain valve, a drain pump, an inlet valve, a defoaming pump, and a feeding motor. The central controller sends operating commands to the output section based on the operating data detected by the input section, thereby enabling the automatic operation of the automatic foam elimination control system for wastewater surfaces.

[0034] The description of this invention is provided for illustrative purposes and is not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An automatic foam elimination control system for wastewater surface, characterized in that: The reaction chamber (1) and central controller are included. A filter screen (2) is provided on the upper surface of the reaction chamber (1). The filter screen (2) has a hollow mesh structure and is wedge-shaped. A defoaming wall (3) is fixed to the inner wall of the reaction chamber (1). The defoaming walls (3) are a group and have a relative structure. The defoaming wall (3) extends to the lower part of the reaction chamber (1) and leaves a gap in the middle. The defoaming wall (3) is hollow inside. The upper surface has a hollow mesh structure and is filled with sponge. An additive component (4) is also fixed to the lower surface. The reaction chamber (1) is also equipped with a defoaming pump (16) and a liquid level sensor (17) on the bottom wall. The defoaming pump (16) is connected to the sponge in the defoaming wall (3) through a pipe. Below the defoaming wall (3), there is also an exhaust pipe (9), which extends out of the reaction chamber (1) and extends to the top of the reaction chamber (1). An exhaust fan (10) is provided inside the exhaust pipe (9), and a filter cotton (30) is provided at the inlet of the exhaust pipe (9). A suspension component (6) is also provided inside the reaction chamber (1). The suspension component (6) is in the shape of an inverted U-shape. A light sensor (7) is fixed to the lower surface of the upper arm of the suspension component (6), and a light source (8) is fixed to the upper surface of the lower arm of the suspension component (6). The central controller is connected to an input section and an output section. The central controller is used to receive data detected by the input section and send operating instructions to the output section to realize the automated operation of each part of the wastewater surface foam elimination control system. The central controller is also connected to an operation panel, which is used to display the operating status and parameters of each part of the wastewater surface foam elimination control system.

2. The automatic foam elimination control system for wastewater surface as described in claim 1, characterized in that: The addition component (4) includes a feeding bin (18), which is funnel-shaped. A feeding motor (19) is fixedly connected to the upper surface of the feeding bin (18), and a rotating shaft (20) is fixedly connected below the feeding motor (19). The rotating shaft (20) is located inside the feeding bin (18), and a spiral blade is fixedly connected to the surface of the rotating shaft (20). A triangular plate (22) is also provided at the feeding port of the feeding bin (18). The triangular plate (22) is fixedly connected to the surface of the rotating shaft (20), and a drive rod (23) is fixedly connected to the upper surface of the triangular plate (22). The drive rod (23) is in the shape of a crank arm and extends to the lower part of the triangular plate (22).

3. The automatic foam elimination control system for wastewater surface as described in claim 2, characterized in that: The inner wall of the feeding bin (18) is also provided with a scraper (21), which is connected to the rotating shaft (20) via a crossbar. A turntable (24) is also provided below the discharge port of the feeding bin (18). The two are sealed together, and the turntable (24) can rotate below the feeding bin (18).

4. The automatic foam elimination control system for wastewater surface as described in claim 3, characterized in that: A material feeding through hole is opened at the center of the turntable (24). Rotating grooves (28) are distributed on opposite sides of the turntable (24) and rotate in opposite directions. A column (29) is embedded in the rotating groove (28). The upper end of the column (29) extends to both sides of the rotating groove (28). A sealing plate (25) is fixedly connected to the bottom of the column (29). Protrusions are distributed on both sides of the sealing plate (25). A spring is connected between the protrusions of the two sealing plates (25).

5. The automatic foam elimination control system for wastewater surface as described in claim 4, characterized in that: The turntable (24) is also provided with a drive groove (26) on one side. The drive groove (26) is located between the two rotating grooves (28). The drive rod (23) extends into the drive groove (26). The upper surface of the drive groove (26) is also provided with a cover plate (27). The cover plate (27) is fixed to the surface of the drive rod (23).

6. The automatic foam elimination control system for wastewater surface as described in claim 1, characterized in that: The reaction chamber (1) is also equipped with a drain pump (13) on the bottom wall. The outlet of the drain pump (13) is connected to a drain pipe (11). The drain pipe (11) is also equipped with a drain valve (12). The upper part of one side of the reaction chamber (1) is also fixed with an inlet pipe (14). The inlet pipe (14) is also equipped with an inlet valve (15).

7. The automatic foam elimination control system for wastewater surface as described in claim 1, characterized in that: Airbags (5) are fixed to the lower sides of the reaction chamber (1). The airbags (5) can suspend the reaction chamber (1) in the sewage. The lower end of the filter screen (2) on the surface of the reaction chamber (1) is located on the surface of the sewage.

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