Sewage treatment aeration device

Abstract

The utility model discloses an aeration device for sewage treatment, which belongs to the technical field of sewage treatment and comprises an aeration tank, a Roots blower is fixedly connected to one side of the aeration tank, an aeration pipe is arranged on the outer side of the Roots blower, a sliding component is arranged at the top of the aeration tank, a cross beam is arranged at the top of the sliding component, a bearing is arranged at the top of the cross beam, and the bearing is arranged at the bottom of the bearing. A transmission shaft is arranged on the inner side of the bearing, a motor is arranged at the top end of the transmission shaft, a dismounting and mounting mechanism is arranged at the bottom end of the transmission shaft, a stirring fan is arranged at the bottom of the dismounting and mounting mechanism, and a cleaning mechanism is arranged on the side, close to the aeration pipe, of the inner side of the aeration tank. The limiting rod is inserted into the transmission shaft along the guide groove, when the limiting rod reaches the positioning hole, the spring is released, meanwhile, the insertion block is inserted into the insertion groove, when the stirring fan rotates, the torque borne by the limiting rod is reduced, and the stirring fan and the transmission shaft are flexibly connected and can be replaced at any time through cooperation of the limiting rod and the positioning hole.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewage treatment technical field, concretely relates to a sewage treatment aeration device. BACKGROUND

[0002] In sewage treatment, aeration is a common treatment method, which refers to promoting the growth of microorganisms and the degradation of organic matter in wastewater by injecting oxygen into the wastewater. In sewage treatment plants, aeration equipment is usually used to introduce air into wastewater. The bubbles in the aeration equipment fully contact with the wastewater, and a part of the dissolved oxygen in the wastewater is carried away by the rising bubbles, and at the same time, oxygen is provided to the microorganisms for biodegradation reaction.

[0003] Chinese patent application No. CN202322845654.1 discloses a sewage treatment aeration device, which comprises a turbulence device movably connected to an aeration tank, and an aeration pipe fixedly connected in the aeration tank. The turbulence device is placed above the aeration pipe, and a control unit is fixedly connected to the turbulence device. The utility model realizes uniform stirring of sewage in the aeration tank by adding a turbulence device, so that the sewage in the aeration tank and the bubbles are more fully contacted, thereby improving the efficiency of sewage aeration treatment.

[0004] 1. The above-mentioned patent uses stirring paddles to accelerate the mixing of activated sludge and organic matter to accelerate the decontamination efficiency, but the stirring paddles will accumulate sludge and cannot be disassembled and replaced, and the longer the time, the higher the damage to the parts; 2. The aeration pipe of the above-mentioned patent is located below the liquid surface for a long time, and the aeration effect is limited, and the sludge is easy to block the pipeline. UTILITY MODEL CONTENTS

[0005] To solve the problems raised in the above background art, the utility model provides a sewage treatment aeration device, which has the characteristics of disassembling and replacing the stirring fan at any time and cleaning the aeration pipe.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a sewage treatment aeration device, comprising an aeration tank, a Roots blower fixedly connected to one side of the aeration tank, an aeration pipe arranged on the outer side of the Roots blower, a sliding assembly arranged on the top of the aeration tank, a cross beam arranged on the top of the sliding assembly, a bearing arranged on the top of the cross beam, a transmission shaft arranged on the inner side of the bearing, a motor arranged on the top end of the transmission shaft, a disassembling and assembling mechanism arranged on the bottom end of the transmission shaft, a stirring fan arranged on the bottom of the disassembling and assembling mechanism, and a cleaning mechanism arranged on the side of the aeration tank close to the aeration pipe.

[0007] Preferably, the disassembling and assembling mechanism comprises a limiting rod, a positioning hole, a guide groove and a spring, wherein one side of the limiting rod is fixedly connected with the spring, the outer side of the transmission shaft is provided with the positioning hole, and the inner side of the transmission shaft close to the positioning hole is provided with the guide groove.

[0008] Preferably, a plug is fixedly connected to the top of the stirring fan near the limiting rod, and a slot is provided on the bottom of the drive shaft near the plug.

[0009] Preferably, a lifting plate is fixedly connected to the top of the motor, and a cylinder is fixedly connected to the top of the crossbeam near the bearing.

[0010] Preferably, the cleaning mechanism includes a water inlet pipe, branch pipes, a nozzle, and a fixing frame. Multiple branch pipes are provided on the outside of the water inlet pipe, and a nozzle is provided at the end of the branch pipe away from the water inlet pipe. A fixing frame is fixedly connected to the outside of the nozzle.

[0011] Preferably, an inclined plate is fixedly connected to the inner side of the aeration tank on the side above the fixed frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model is equipped with a disassembly and assembly mechanism. Pressing the two limiting rods, the limiting rods are inserted into the drive shaft along the guide groove. When they reach the positioning hole, the spring is released, and the limiting rod is inserted into the positioning hole. At the same time, the insert block is also inserted into the slot. When the stirring fan rotates, the torque on the limiting rod is reduced. Through the cooperation between the limiting rod and the positioning hole, the stirring fan and the drive shaft are flexibly connected and can be replaced at any time.

[0014] 2. This utility model is equipped with a cleaning mechanism. The Roots blower blows oxygen into the aeration tank through the aeration pipes. The aeration pipes are installed opposite each other. While oxygen is being introduced, they are flushed against each other at the bottom of the water to lift the activated sludge upwards. When not in operation, clean water is poured in through the water inlet pipe, and the nozzles flush one end of the aeration pipe in the aeration tank. By flushing the aeration pipe through the water inlet pipe and the nozzles, sludge can be prevented from accumulating on the aeration pipe. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the transmission shaft of this utility model;

[0017] Figure 3 This is a schematic diagram of the disassembly and assembly mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the cleaning mechanism of this utility model;

[0019] In the diagram: 1. Aeration tank; 2. Roots blower; 3. Aeration pipe; 4. Sliding assembly; 5. Motor; 6. Drive shaft; 7. Assembly / disassembly mechanism; 71. Limiting rod; 72. Positioning hole; 73. Guide groove; 74. Spring; 75. Insert block; 76. Slot; 8. Agitator fan; 9. Cleaning mechanism; 91. Inlet pipe; 92. Branch pipe; 93. Nozzle; 94. Fixing frame; 95. Inclined plate; 10. Lifting plate; 11. Crossbeam; 12. Cylinder; 13. Bearing. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] Please see Figures 1-4 The present invention provides the following technical solution: a sewage treatment aeration device, including an aeration tank 1, a Roots blower 2 fixedly connected to one side of the aeration tank 1, an aeration pipe 3 arranged on the outer side of the Roots blower 2, a sliding assembly 4 arranged on the top of the aeration tank 1, a crossbeam 11 arranged on the top of the sliding assembly 4, a bearing 13 arranged on the top of the crossbeam 11, a drive shaft 6 arranged on the inner side of the bearing 13, a motor 5 arranged at the top of the drive shaft 6, a disassembly and assembly mechanism 7 arranged at the bottom of the drive shaft 6, a stirring fan 8 arranged at the bottom of the disassembly and assembly mechanism 7, and a cleaning mechanism 9 arranged on the inner side of the aeration tank 1 near the aeration pipe 3.

[0023] Specifically, the disassembly and assembly mechanism 7 includes a limiting rod 71, a positioning hole 72, a guide groove 73, and a spring 74. The spring 74 is fixedly connected to one side of the limiting rod 71. The positioning hole 72 is opened on the outer side of the drive shaft 6, and the guide groove 73 is opened on the inner side of the drive shaft 6 near the positioning hole 72.

[0024] By adopting the above technical solution, pressing the two limiting rods 71 ​​causes the spring 74 to contract, inserting the limiting rods 71 ​​into the drive shaft 6 along the guide groove 73. When they reach the positioning hole 72, the spring 74 is released, and the limiting rods 71 ​​are inserted into the positioning hole 72.

[0025] Specifically, a plug 75 is fixedly connected to the top of the stirring fan 8 near the limiting rod 71, and a slot 76 is provided on the bottom of the drive shaft 6 near the plug 75.

[0026] By adopting the above technical solution, when the limiting rod 71 is inserted into the positioning hole 72, the insert block 75 will also be inserted into the slot 76, which can reduce the torque on the limiting rod 71 when the stirring fan 8 rotates.

[0027] Specifically, a lifting plate 10 is fixedly connected to the top of the motor 5, and a cylinder 12 is fixedly connected to the top of the crossbeam 11 near the bearing 13.

[0028] By adopting the above technical solution, the cylinder 12 drives the lifting plate 10 to move up and down, thereby driving the stirring fan 8 to rise and fall, thus changing the stirring height.

[0029] In this embodiment, the Roots blower 2 and motor 5 are connected to an external power source. The bottom of the aeration tank 1 contains a large amount of activated sludge, which absorbs organic matter from the wastewater. External wastewater is discharged directly into the aeration tank 1 from above. The Roots blower 2 is started, and a large amount of dissolved oxygen is discharged into the bottom of the aeration tank 1 from the aeration pipe 3. Because the aeration pipes 3 are installed opposite each other, the oxygen flows against the bottom of the tank while being introduced, lifting the activated sludge upwards. This increases the contact between the activated sludge and the wastewater, thus increasing the removal efficiency. The motor 5 drives the transmission shaft 6 and the mixing fan 8 to rotate around the bearing 13, ensuring thorough mixing of oxygen and activated sludge. The cylinder 12 drives the lifting plate 10 to move up and down, thereby raising and lowering the mixing fan 8. By changing the stirring height, the sliding component 4 drives the stirring fan 8 to move horizontally. After cleaning, press the two limit rods 71 ​​first, pull out the stirring fan 8, and then press the two limit rods 71 ​​again. The spring 74 retracts, and the limit rod 71 is inserted into the drive shaft 6 along the guide groove 73. When it reaches the positioning hole 72, the spring 74 is released, and the limit rod 71 is inserted into the positioning hole 72. At the same time as the limit rod 71 is inserted into the positioning hole 72, the insert block 75 will also be inserted into the slot 76. This can reduce the torque on the limit rod 71 when the stirring fan 8 rotates, thereby achieving the purpose of replacing the stirring fan 8. Through the cooperation of the limit rod 71 and the positioning hole 72, the stirring fan 8 and the drive shaft 6 are flexibly connected and can be replaced at any time.

[0030] Example 2

[0031] The difference between this embodiment and embodiment 1 is that the cleaning mechanism 9 includes an inlet pipe 91, branch pipes 92, nozzles 93 and a fixing frame 94. Multiple branch pipes 92 are provided on the outside of the inlet pipe 91, and a nozzle 93 is provided at the end of the branch pipe 92 away from the inlet pipe 91. The fixing frame 94 is fixedly connected to the outside of the nozzle 93.

[0032] By adopting the above technical solution, when not in operation, clean water is poured into the inlet pipe 91, and the water flows into the nozzle 93 along the branch pipe 92. The nozzle 93 flushes one end of the aeration pipe 3 in the aeration tank 1 to prevent sludge from accumulating at the pipe opening.

[0033] Specifically, an inclined plate 95 is fixedly connected to the inner side of the aeration tank 1, above the fixed frame 94.

[0034] By adopting the above technical solution, when the inclined plate 95 prevents oxygen from colliding, a large amount of sludge falls from above onto the aeration pipe 3.

[0035] In this embodiment, the inlet pipe 91 is connected to the water source. When no desludge removal is being performed, clean water is poured into the inlet pipe 91. The water flows into the nozzle 93 along the branch pipe 92. The nozzle 93 flushes one end of the aeration pipe 3 in the aeration tank 1 to prevent sludge from accumulating at the pipe opening. When the inclined plate 95 prevents oxygen from colliding, a large amount of sludge falls from above onto the aeration pipe 3. By flushing the aeration pipe 3 with clean water, sludge can be prevented from accumulating on the aeration pipe 3.

[0036] The structure and operating principle of the aeration tank 1, aeration pipe 3, sliding component 4, motor 5 and stirring fan 8 in this utility model have been disclosed in a sewage treatment aeration device disclosed in Chinese patent application number CN202322845654.1.

[0037] The working principle and usage process of this utility model are as follows: When using this utility model, connect the Roots blower 2 and motor 5 to an external power source. The bottom of the aeration tank 1 is filled with a large amount of activated sludge, which absorbs organic matter in the wastewater. External wastewater is discharged directly from the top of the aeration tank 1. Start the Roots blower 2, and a large amount of dissolved oxygen is discharged into the bottom of the aeration tank 1 from the aeration pipe 3. Because the aeration pipe 3 is installed opposite each other, the oxygen will flush against the bottom of the water while being introduced, lifting the activated sludge upwards, thereby increasing the contact between the activated sludge and the wastewater and increasing the decontamination efficiency. The motor 5 drives the transmission shaft 6 and the stirring fan 8 to rotate around the bearing 13, so that the oxygen and activated sludge are fully mixed. The cylinder 12 drives the lifting plate 10 to move up and down, thereby driving the stirring fan 8 to rise and fall, thus changing the stirring height. The sliding component 4 drives the stirring fan 8 to move horizontally. After decontamination, first press the two limit rods 71, pull out the stirring fan 8, and then press the two limit rods 71 ​​again. When spring 74 retracts, it inserts the limiting rod 71 into the drive shaft 6 along the guide groove 73. Upon reaching the positioning hole 72, spring 74 releases, and the limiting rod 71 inserts into the positioning hole 72. Simultaneously, the insert block 75 inserts into the slot 76, reducing the torque on the limiting rod 71 when the stirring fan 8 rotates, thus facilitating the replacement of the stirring fan 8. The cooperation between the limiting rod 71 and the positioning hole 72 allows the stirring fan 8 to... The drive shaft 6 is flexibly connected and can be replaced at any time; the water inlet pipe 91 is connected to the water source. When no desludge removal work is being carried out, clean water is poured into the water inlet pipe 91. The water flows into the nozzle 93 along the branch pipe 92. The nozzle 93 flushes one end of the aeration pipe 3 in the aeration tank 1 to prevent sludge from accumulating at the pipe opening. When the inclined plate 95 prevents oxygen from colliding, a large amount of sludge falls from above onto the aeration pipe 3. By flushing the aeration pipe 3 with clean water, sludge can be prevented from accumulating on the aeration pipe 3.

[0038] 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. A wastewater treatment aeration device, comprising an aeration tank (1), characterized in that: A Roots blower (2) is fixedly connected to one side of the aeration tank (1). An aeration pipe (3) is provided on the outside of the Roots blower (2). A sliding assembly (4) is provided on the top of the aeration tank (1). A crossbeam (11) is provided on the top of the sliding assembly (4). A bearing (13) is provided on the top of the crossbeam (11). A drive shaft (6) is provided on the inside of the bearing (13). A motor (5) is provided at the top of the drive shaft (6). A disassembly and assembly mechanism (7) is provided at the bottom of the drive shaft (6). An agitator (8) is provided at the bottom of the disassembly and assembly mechanism (7). A cleaning mechanism (9) is provided on the inside of the aeration tank (1) near the aeration pipe (3).

2. The wastewater treatment aeration device according to claim 1, characterized in that: The disassembly and assembly mechanism (7) includes a limiting rod (71), a positioning hole (72), a guide groove (73), and a spring (74). The limiting rod (71) is fixedly connected to one side of the spring (74), the drive shaft (6) has a positioning hole (72) on the outside, and the drive shaft (6) has a guide groove (73) on the inside of the drive shaft (6) near the positioning hole (72).

3. The wastewater treatment aeration device according to claim 2, characterized in that: The top of the stirring fan (8) is fixedly connected to a plug (75) near the limiting rod (71), and the bottom of the drive shaft (6) is provided with a slot (76) near the plug (75).

4. The wastewater treatment aeration device according to claim 1, characterized in that: A lifting plate (10) is fixedly connected to the top of the motor (5), and a cylinder (12) is fixedly connected to the top of the crossbeam (11) near the bearing (13).

5. The wastewater treatment aeration device according to claim 1, characterized in that: The cleaning mechanism (9) includes an inlet pipe (91), branch pipes (92), nozzles (93) and a fixing frame (94). Multiple branch pipes (92) are provided on the outside of the inlet pipe (91). A nozzle (93) is provided at the end of the branch pipe (92) away from the inlet pipe (91). The fixing frame (94) is fixedly connected to the outside of the nozzle (93).

6. The wastewater treatment aeration device according to claim 5, characterized in that: An inclined plate (95) is fixedly connected to the inner side of the aeration tank (1) above the fixed frame (94).

Images