CN219409455U - Sewage treatment aeration system - Google Patents

Abstract

The utility model relates to a sewage treatment aeration system, which comprises a tank body and aeration equipment, wherein a mounting frame is arranged on a cross frame above the tank body, the aeration equipment comprises a hollow rotating shaft, a bottom aeration pipe and a cleaning brush rod, the hollow rotating shaft is positioned in the middle of the tank body, the upper end of the hollow rotating shaft is rotationally connected with the mounting frame, a driven gear ring which is meshed with a driving gear for transmission is arranged on the outer side of the upper end of the hollow rotating shaft, a plurality of aeration holes are arranged on the bottom aeration pipe, the bottom aeration pipe is fixed at the lower end of the hollow rotating shaft, the inside of the bottom aeration pipe is communicated with the hollow rotating shaft, and the upper end of the hollow rotating shaft is communicated with an external aeration air source through a rotary joint; the cleaning brush rod is fixed in the position of being located bottom aeration pipe top in the cell body, and the cleaning brush rod downside sets up and is used for right the brush body that the aeration hole was washd, the bottom of bottom aeration pipe is equipped with scrapes the scraper blade that moves bottom the cell body. The bottom aeration pipe integrates the functions of exhausting, aerating, stirring, scraping and self-cleaning, and solves the problem of sludge deposition on the basis of not influencing the operation and arrangement of aeration equipment.

Description

Sewage treatment aeration system

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a sewage treatment aeration system.

Background

In the water treatment process, the aeration equipment is a key equipment for biological pretreatment of water and biological treatment of sewage, and oxygen in the air is transferred into liquid through the aeration equipment so as to supply oxygen required by metabolism of aerobic organisms, thereby achieving the aim of biological treatment. The aeration system generally comprises a tank body and aeration equipment, the tank body is built by reinforced concrete, sludge deposition and other phenomena exist in the tank body in the water treatment process, aeration pipes are blocked, the sewage treatment effect is affected, a conventional sewage plant adopts a stirring device to mix and avoid sludge accumulation, but the operation and arrangement of the aeration equipment can be affected by the stirrer and the plug flow.

Disclosure of Invention

The utility model aims to provide a sewage treatment aeration system which can solve the problem of sludge deposition on the basis of not influencing the operation and arrangement of aeration equipment.

The utility model provides the following technical scheme: the sewage treatment aeration system comprises a tank body and aeration equipment, wherein a mounting frame is arranged on a cross frame above the tank body, the aeration equipment comprises a hollow rotating shaft, a bottom aeration pipe and a cleaning brush rod, the hollow rotating shaft is positioned in the middle of the tank body, the upper end of the hollow rotating shaft is rotationally connected with the mounting frame, a driving motor is fixed on the mounting frame, the output end of the driving motor is connected with a driving gear, a driven gear ring which is meshed with the driving gear for transmission is arranged on the outer side of the upper end of the hollow rotating shaft, a plurality of aeration holes are arranged on the bottom aeration pipe, the bottom aeration pipe is fixed at the lower end of the hollow rotating shaft and is internally communicated with the hollow rotating shaft, and the upper end of the hollow rotating shaft is communicated with an external aeration air source through a rotary joint; the cleaning brush rod is fixed in the position of being located bottom aeration pipe top in the cell body, and cleaning brush rod downside sets up and is used for right the brush body that the aeration hole was washd, and bottom aeration pipe's downside is equipped with scrapes the scraper blade that moves bottom the cell body.

Further, the aeration equipment also comprises a liquid level aeration device, the liquid level aeration device comprises a supporting toothed ring, a connecting rod and an aeration impeller, the supporting toothed ring is fixed inside the tank body and is provided with supporting teeth on the upper side, the connecting rod extends along the horizontal direction, the aeration impeller mainly comprises an aeration gear and a plurality of aeration blades arranged on the radial outer side of the aeration gear, the radial inner end of the connecting rod is fixedly connected with the hollow rotating shaft, the radial inner end of the connecting rod is rotationally connected with the aeration gear, and the aeration gear is meshed and matched with the supporting toothed ring.

Further, a supporting rotating frame for supporting the hollow rotating shaft to rotate is arranged in the tank body, the supporting rotating frame comprises a middle sleeve and at least two supporting rods connected between the tank body and the middle sleeve, and a middle hole of the middle sleeve is used for the hollow rotating shaft to pass through and be rotationally connected with the hollow rotating shaft through a supporting bearing.

In summary, the utility model has the following beneficial effects: when the sewage treatment aeration system is used, the driving motor is started, an external aeration air source supplies air to the hollow rotating shaft through the rotary joint, the air is discharged into sewage for aeration through the aeration holes on the bottom aeration pipe, and meanwhile, the bottom aeration pipe rotates along with the hollow rotating shaft to agitate sewage at the bottom of the tank, and the scraping plate cleans the bottom of the tank to prevent sludge from sinking; the brush body rubs the aeration holes in the process of moving the bottom aeration pipe relative to the cleaning brush rod, so that the aeration holes are prevented from being blocked by sludge to influence the exhaust; the aeration pipe at the bottom in the sewage treatment aeration system rotates while exhausting, so that on one hand, the exhaust of the bottom of the tank is more uniform, on the other hand, the exhaust aeration structure and the stirring structure are combined into a whole, the exhaust simultaneously stirs the sewage at the bottom of the tank and cleans the aeration holes, thereby avoiding the blocking of sludge and aeration holes at the bottom of the tank, ensuring good aeration effect and avoiding the interference problem of the operation arrangement of aeration equipment and stirring equipment; the liquid level aeration device has ingenious structural design, based on the principle of a gear and a rack, when the connecting rod drives the aeration impeller to rotate along with the hollow rotating shaft, the aeration gear rotates relative to the connecting rod under the meshing action of the supporting toothed ring teeth and drives the aeration blades on the outer side to rotate, the aeration blades agitate liquid level sewage, so that air and sewage fully contact, the aeration effect is enhanced, the aeration gear rotates relative to the connecting rod while revolving around the axis of the hollow rotating shaft, the liquid level stirring effect is good, and the contact between the air and the sewage is enhanced; and a supporting rotating frame is arranged and used for supporting the hollow rotating shaft to stably rotate.

Drawings

FIG. 1 is a schematic view showing the construction of an embodiment 1 of a sewage treatment aeration system of the present utility model;

FIG. 2 is a detailed view of the structure at A in FIG. 1;

reference numerals: 1-a pool body; 2-mounting frames; 3-a hollow rotating shaft; 4-bottom aeration tube; 5-exposing pores; 6-scraping plates; 7-cleaning a brush bar; 8, a brush body; 9-driving a motor; 10-a drive gear; 11-a driven ring gear; 12-a rotary joint; 13-supporting a toothed ring; 14-connecting rods; 15-an aeration impeller; 16-an aeration gear; 17-aeration blades; 18-supporting rods; 19-middle sleeve.

Description of the embodiments

The present utility model will be described in detail with reference to the accompanying drawings.

Specific example 1 of a sewage aeration system of the present utility model:

the sewage aeration system comprises a tank body 1 and aeration equipment arranged in the tank body 1, wherein the tank body 1 is built by reinforced concrete, a mounting frame 2 is arranged on a cross frame above the tank body, the aeration equipment comprises a hollow rotating shaft 3, a bottom aeration pipe 4, a cleaning brush rod 7 and a liquid level aeration device, the hollow rotating shaft 3 is positioned in the middle of the tank body 1, the inside is hollow, the lower part is blocked, the bottom aeration pipe 4 is positioned at the lower end of the hollow rotating shaft 3, and a plurality of aeration holes 5 for gas supply and discharge are formed in the bottom aeration pipe 4. For driving hollow pivot 3 rotation, set up driving motor 9 on mounting bracket 2, driving motor output connects driving gear 10, the outside of hollow pivot 3 upper end then set up with driving gear 10 meshing driven ring gear 11, hollow pivot 3's upper end is rotated with mounting bracket 2 through the top bearing and is connected, the inside support revolving rack that is used for supporting hollow pivot 3 pivoted that is equipped with of cell body 1, the support revolving rack includes middle cover 19 and connects two bracing pieces 18 between cell body 1 and middle cover 19, hollow pivot 3 passes from middle cover 19 mesopore and is rotated with middle cover 19 through the support bearing and be connected. In the present utility model, the number of the bottom aeration pipes 4 is four, and in other embodiments, the number of the bottom aeration pipes 4 may be two, three, five, or the like.

The upper end of the hollow rotating shaft 3 is connected with an external aeration air source through a rotary joint 12, the inside of the bottom aeration pipe 4 is communicated with the hollow rotating shaft 3, and under the action of a driving motor 9 and the external aeration air source, the bottom aeration pipe 4 rotates along with the hollow rotating shaft 3 to stir the bottom of the pool while exhausting, and a scraping plate 6 for scraping the bottom of the pool is arranged at the bottom of the bottom aeration pipe 4. The cleaning brush rod 7 sets up two, and the symmetry sets up in the both sides of hollow pivot 3 and fixes the top at the bottom aeration pipe 4 in cell body 1, and cleaning brush rod 7 sets up next bottom aeration pipe 4, and cleaning brush rod 7 downside sets up the brush body 8 of cleaning brush bottom aeration pipe 4, prevent mud jam aeration hole 5. The driving motor 9 is started and ventilates to the hollow rotating shaft 3 through an external aeration air source, the driving gear drives the driven gear ring and the hollow rotating shaft to rotate, then drives the bottom aeration pipe 4 to rotate, the bottom aeration pipe 4 rotates while exhausting air, the scraping plate 6 scrapes the bottom of the tank while stirring sewage, the bottom deposition sludge is prevented, the bottom aeration pipe 4 rotates relative to the cleaning brush rod 7, and the brush body 8 brushes the bottom aeration pipe 4 to prevent the aeration hole 5 from being blocked by the sludge.

The liquid level aeration device is arranged at the position close to the liquid level in the tank body 1 and comprises a supporting toothed ring 13, a connecting rod 14 and an aeration impeller 15, wherein the supporting toothed ring 13 is fixed in the tank body 1, supporting teeth are arranged at the upper side of the supporting toothed ring, the connecting rod 14 is provided with two supporting toothed rings and extends along the horizontal direction, the radial inner end of the connecting rod 14 is connected with a hollow rotating shaft, as shown in fig. 2, the aeration impeller 15 mainly comprises an aeration gear 16 and a plurality of aeration blades 17 arranged at the radial outer side of the aeration gear 16, and the aeration gear 16 is rotationally assembled at the radial outer end of the connecting rod 14 and meshed and matched with the supporting toothed ring 13. Through the structure, the connecting rod drives the aeration gear 16 to rotate along with the hollow rotating shaft 3, meanwhile, the aeration gear 16 rotates along the supporting toothed ring 13 under the action of tooth meshing, and blades on the aeration gear 16 stir the liquid level, so that air and sewage are fully contacted, and the aeration effect is enhanced.

In the sewage treatment aeration system, the bottom aeration pipe which is used for exhausting and aerating and stirring is arranged at the bottom of the tank, the bottom of the tank is scraped by the scraping plate in the stirring process, so that sludge is prevented from sinking, the bottom aeration pipe is cleaned by the cleaning brush rod, the aeration hole is prevented from being blocked by the sludge, and the aeration reaction is ensured to be normally carried out; the liquid level aeration device is arranged near the liquid level, wherein the aeration impeller rotates while revolving along the hollow rotating shaft, and the liquid level is stirred to fully contact with air, so that the aeration effect of the liquid level is enhanced.

The above is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (3)

1. The sewage treatment aeration system is characterized by comprising a tank body and aeration equipment, wherein a mounting frame is arranged on a cross frame above the tank body, the aeration equipment comprises a hollow rotating shaft, a bottom aeration pipe and a cleaning brush rod, the hollow rotating shaft is positioned in the middle of the tank body, the upper end of the hollow rotating shaft is rotationally connected with the mounting frame, a driving motor is fixed on the mounting frame, the output end of the driving motor is connected with a driving gear, a driven gear ring which is meshed with the driving gear for transmission is arranged on the outer side of the upper end of the hollow rotating shaft, a plurality of aeration holes are arranged on the bottom aeration pipe, the bottom aeration pipe is fixed at the lower end of the hollow rotating shaft and is internally communicated with the hollow rotating shaft, and the upper end of the hollow rotating shaft is communicated with an external aeration air source through a rotary joint; the cleaning brush rod is fixed in the position of being located bottom aeration pipe top in the cell body, and cleaning brush rod downside sets up and is used for right the brush body that the aeration hole was washd, and bottom aeration pipe's downside is equipped with scrapes the scraper blade that moves bottom the cell body.

2. The sewage treatment aeration system according to claim 1, wherein the aeration device further comprises a liquid level aeration device, the liquid level aeration device comprises a supporting toothed ring, a connecting rod and an aeration impeller, the supporting toothed ring is fixed in the tank body and is provided with supporting teeth on the upper side, the connecting rod extends along the horizontal direction, the aeration impeller mainly comprises an aeration gear and a plurality of aeration blades arranged on the radial outer side of the aeration gear, the radial inner end of the connecting rod is fixedly connected with the hollow rotating shaft, the radial outer end of the connecting rod is rotationally connected with the aeration gear, and the aeration gear is meshed and matched with the supporting toothed ring teeth.

3. A sewage treatment aeration system according to claim 1 or 2, wherein a supporting rotating frame for supporting the hollow rotating shaft to rotate is arranged in the tank body, the supporting rotating frame comprises a middle sleeve and at least two supporting rods connected between the tank body and the middle sleeve, and a middle hole of the middle sleeve is used for the hollow rotating shaft to pass through and be in rotary connection with the hollow rotating shaft through a supporting bearing.