A fiberglass grating tank for sewage treatment

Abstract

This utility model discloses a fiberglass grating tank for sewage treatment, relating to the field of sewage treatment technology. It includes a circular biological tank body with aeration pipes installed around its inner wall. Multiple aeration heads are mounted on the aeration pipes. An external ventilation pipe connected to the aeration pipes is provided outside the biological tank body. Two mounting seats are provided outside the biological tank body, with a top long plate fixed between them. The top long plate extends above the center of the biological tank body. A reduction motor is mounted on the top of the top long plate, and the output end of the reduction motor is connected to a rotating shaft passing through the top long plate. A connecting long plate is fixed to the bottom of the rotating shaft. A downward sliding groove is formed along the length of the bottom of the connecting long plate, and an upper sliding groove is formed above the downward sliding groove. The width of the upper sliding groove is greater than the width of the downward sliding groove. This allows the aeration range to cover the entire tank body and achieves integrated treatment of automatic scum removal and adsorption of organic matter and heavy metals.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a fiberglass grating tank for wastewater treatment. Background Technology

[0002] In the field of wastewater treatment, biological treatment tanks are used to achieve pollutant degradation and microbial metabolism. Fiberglass biological treatment tanks, due to their advantages such as lightweight, high strength, corrosion resistance, and short construction period, are widely used in domestic sewage and industrial wastewater treatment projects.

[0003] In existing biological treatment tanks, traditional aeration pipes are mostly fixedly installed at the bottom or wall of the tank, resulting in limited aeration range and uneven bubble distribution, leading to insufficient dissolved oxygen in some areas and affecting microbial activity and pollutant degradation efficiency. Furthermore, the treatment of scum, organic matter, and heavy metals in wastewater requires manual removal of scum or replacement of adsorption materials in the wastewater, indicating room for optimization. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a fiberglass grating tank for sewage treatment, comprising a circular biological tank body. An aeration pipe is installed around the inner wall of the biological tank body, and multiple aeration heads are mounted on the aeration pipe. An air vent pipe connected to the aeration pipe is located outside the biological tank body. Two mounting seats are located outside the biological tank body, and a top long plate is fixed between the two mounting seats. The top long plate extends above the center of the biological tank body. A reduction motor is installed at the top of the top long plate above the center of the biological tank body. The output end of the reduction motor is connected to a rotating shaft passing through the top long plate. A connecting long plate is fixed at the bottom of the rotating shaft. A downward sliding groove is formed along the length of the bottom of the connecting long plate, and an upper sliding groove is formed above the downward sliding groove. The width of the upper sliding groove is greater than the width of the downward sliding groove. The upper sliding groove and the downward sliding groove are T-shaped and extend through the end of the connecting long plate away from the rotating shaft.

[0005] Furthermore, an insertable long plate is provided that can be inserted into the connecting long plate. The top cross-section of the insertable long plate is T-shaped and is adapted to the upper and lower sliding grooves. A clamp is installed at the bottom of the insertable long plate. When removing scum, the insertable long plate clamps the scooping net with the clamp. When adsorbing organic matter and heavy metals, the insertable long plate clamps the activated carbon plate with the clamp.

[0006] Furthermore, the biological treatment tank is equipped with water quality monitoring devices, including a pH sensor, a dissolved oxygen sensor, and a COD sensor.

[0007] Furthermore, a sludge outlet hole is provided at the bottom center of the biochemical tank, and a sludge outlet pipe is connected below the sludge outlet hole. A sludge outlet opening and closing valve is installed on the sludge outlet pipe.

[0008] Furthermore, a sewage inlet pipe is installed above the biochemical tank, and a sewage on / off valve is installed on the sewage inlet pipe.

[0009] The beneficial effects of this utility model are as follows:

[0010] 1. The aeration pipes arranged in a circular pattern and the rotating aeration heads cover the entire tank, making the bubble distribution more uniform; the replaceable scum removal and activated carbon plates enable integrated treatment of automatic scum removal and adsorption of organic matter and heavy metals.

[0011] 2. The linkage between the water quality monitoring device and the control system enables real-time monitoring and adjustment of pH value, dissolved oxygen and COD. Attached Figure Description

[0012] Figure 1 This is a top view of the structure of this utility model;

[0013] Figure 2 for Figure 1 A top view of the structure of the biochemical tank;

[0014] Figure 3 This is a schematic diagram of the structure when the fishing net is connected in this utility model;

[0015] Figure 4 This is a schematic diagram of the structure when the activated carbon plate is connected in this utility model;

[0016] Figure 5 This is a side view of the connecting long plate in this utility model.

[0017] The following are the annotations in the attached drawings: 1. Biological tank body; 2. Aeration pipe; 3. Aeration head; 4. Ventilation pipe; 5. Mounting base; 6. Top long plate; 7. Gear motor; 8. Rotating shaft; 9. Connecting long plate; 91. Upper chute; 92. Lower chute; 10. Inserted long plate; 11. Clamp; 12. Fishing net; 13. Activated carbon plate; 141. pH sensor; 142. Dissolved oxygen sensor; 143. COD sensor; 15. Sludge discharge pipe; 16. Wastewater inlet pipe; 17. Wastewater on / off valve. Detailed Implementation

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are 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, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 mechanical connection or an electrical 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.

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] A fiberglass grating tank for sewage treatment, such as Figure 1 and Figure 2 As shown, the system includes a biological treatment tank 1, which is circular. An aeration pipe 2 is installed around the inner wall of the biological treatment tank 1, and multiple aeration heads 3 are installed on the aeration pipe 2. An air vent pipe 4 connected to the aeration pipe 2 is provided outside the biological treatment tank 1. A sludge outlet hole is opened at the center of the bottom of the biological treatment tank 1, and a sludge outlet pipe 15 is connected below the sludge outlet hole. A sludge outlet valve is installed on the sludge outlet pipe 15. A sewage inlet pipe 16 is installed above the biological treatment tank 1, and a sewage inlet valve 17 is installed on the sewage inlet pipe 16. Water quality monitoring devices are installed inside the biological treatment tank 1, including a pH sensor 141, a dissolved oxygen sensor 142, and a COD sensor 143.

[0022] Among them, the external Roots blower is connected for ventilation to achieve uniform aeration and oxygen supply, ensuring the activity of microorganisms; the sludge discharge system avoids sludge accumulation; the inflow and outflow of wastewater are controlled, and real-time feedback data from water quality monitoring is used to assist in the regulation and treatment.

[0023] like Figures 1-5As shown, in this embodiment, two mounting bases 5 are provided outside the biochemical tank 1, and a top long plate 6 is fixed between the two mounting bases 5. The top long plate 6 extends above the center of the biochemical tank 1. A reduction motor 7 is installed on the top of the top long plate 6 above the center of the biochemical tank 1. The output end of the reduction motor 7 is connected to a rotating shaft 8 that passes through the top long plate 6. A connecting long plate 9 is fixed to the bottom of the rotating shaft 8. A sliding groove 92 is formed along the length direction at the bottom of the connecting long plate 9. An upper sliding groove 91 is formed above the sliding groove 92. The width of the upper sliding groove 91 is... The width of the upper slide 91 is greater than that of the lower slide 92. The upper slide 91 and the lower slide 92 are T-shaped and extend through the end of the connecting plate 9 away from the rotating shaft 8. A plug-in plate 10 is provided to be plugged into the connecting plate 9. The top cross-section of the plug-in plate 10 is T-shaped and fits the upper slide 91 and the lower slide 92. A clamp 11 is installed at the bottom of the plug-in plate 10. When removing scum, the plug-in plate 10 clamps the net 12 through the clamp 11. When adsorbing organic matter and heavy metals, the plug-in plate 10 clamps the activated carbon plate 13 through the clamp 11. The rotating structure drives the net 12 or the activated carbon plate 13 to work, automatically removing scum from the water surface or adsorbing organic matter and heavy metals, reducing manual operation and improving treatment efficiency and flexibility.

[0024] The working principle of this utility model is as follows:

[0025] Once the wastewater enters the biological treatment tank, the control system first determines the wastewater's pH value, dissolved oxygen content, and COD concentration based on data from the water quality monitoring devices. If the pH value exceeds the range of 6.5-8.5, an acid-base adjuster is added for neutralization; if the dissolved oxygen is below 2 mg / L, the aeration rate of the Roots blower (externally connected to vent pipe 4) is increased; if the COD concentration is too high, the wastewater's residence time in the tank is extended.

[0026] During aeration, the Roots blower delivers air through the vent pipe 4 to the aeration pipe 2, where it is formed into tiny bubbles by the aeration head 3 and evenly released into the water to provide oxygen for the microorganisms. The circular aeration pipe 2 covers the inner ring of the biological tank 1, ensuring that the aeration range covers the entire cross-section of the tank and improving the uniformity of dissolved oxygen distribution.

[0027] When treating scum, the operator secures the scoop net 12 to the insert plate 10 using clamps 11, then inserts the insert plate 10 below the connecting plate 9. The reduction motor 7 is started, driving the connecting plate 9 to rotate via the rotating shaft 8. This, in turn, rotates the insert plate 10. With the scoop net 12 submerged in the wastewater, it gradually covers the surface of the circular biological treatment tank 1, removing the scum from the wastewater surface. In the stage of adsorbing organic matter and heavy metals, the scoop net 12 is replaced with an activated carbon plate 13. The activated carbon plate 13, during rotation, comes into full contact with the wastewater, removing pollutants through physical adsorption.

[0028] As the treatment process proceeds, sludge gradually settles to the bottom of the tank. When sludge discharge is required, the sludge discharge valve is opened, and the water pressure inside the tank forces the sludge out through the sludge discharge pipe 15. The sludge discharge frequency is determined based on the influent water quality and the treatment load.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A glass steel grid pool for sewage treatment, comprising a biochemical pool body (1), characterized in that: The biochemical tank (1) is circular. An aeration pipe (2) is installed around the inner wall of the biochemical tank (1). Multiple aeration heads (3) are installed on the aeration pipe (2). An air vent (4) connected to the aeration pipe (2) is provided outside the biochemical tank (1). Two mounting seats (5) are provided outside the biochemical tank (1). A top long plate (6) is fixed between the two mounting seats (5). The top long plate (6) extends to above the center of the biochemical tank (1). The top of the top long plate (6) is installed above the center of the biochemical tank (1). The device is equipped with a geared motor (7), and the output end of the geared motor (7) is connected to a rotating shaft (8) that passes through the top long plate (6). A connecting long plate (9) is fixed at the bottom of the rotating shaft (8). A sliding groove (92) is provided at the bottom of the connecting long plate (9) along the length direction. An upper sliding groove (91) is provided above the sliding groove (92). The width of the upper sliding groove (91) is greater than the width of the sliding groove (92). The upper sliding groove (91) and the sliding groove (92) are T-shaped as a whole and pass through the end of the connecting long plate (9) away from the rotating shaft (8).

2. The glass steel grid pool for sewage treatment according to claim 1, characterized in that: A plug-in long plate (10) is provided that can be plugged into a connecting long plate (9). The top cross section of the plug-in long plate (10) is T-shaped and is adapted to the upper sliding groove (91) and the lower sliding groove (92). A clamp (11) is installed at the bottom of the plug-in long plate (10). When removing scum, the plug-in long plate (10) clamps the net (12) through the clamp (11). When adsorbing organic matter and heavy metals, the plug-in long plate (10) clamps the activated carbon plate (13) through the clamp (11).

3. The glass steel grid pool for sewage treatment according to claim 1, characterized in that: The biochemical tank (1) is equipped with water quality monitoring devices, including a pH sensor (141), a dissolved oxygen sensor (142), and a COD sensor (143).

4. The glass steel grid pool for sewage treatment according to claim 1, characterized in that: The bottom center of the biochemical tank (1) is provided with a mud outlet hole, and a mud outlet pipe (15) is connected below the mud outlet hole. A mud outlet valve is installed on the mud outlet pipe (15).

5. The glass steel grid pool for sewage treatment according to claim 1, characterized in that: A sewage inlet pipe (16) is installed above the biochemical tank (1), and a sewage inlet valve (17) is installed on the sewage inlet pipe (16).

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