Industrial wastewater treatment aeration filter tank

Abstract

The utility model relates to the technical field of sewage treatment, in particular to an aeration filter tank for industrial wastewater treatment, which comprises an aeration tank main body, an air supply pipe arranged at the outer end of the aeration tank main body, an aeration nozzle arranged in the aeration tank main body and communicated with the air supply pipe, and an equipment bracket arranged on the upper end surface of the aeration tank main body, a motor is arranged on the upper end face of the equipment support, a stirring shaft is arranged at the lower end of the motor, stirring blades are arranged at the bottom of the side end face of the stirring shaft, the stirring shaft is sleeved with a bubble removing shovel, an air inlet is formed in the side end face of the bubble removing shovel, a backflow opening is formed in the bottom of the bubble removing shovel, an exhaust fan is arranged on the upper end face of the bubble removing shovel, and a bubble removing net is arranged in the bubble removing shovel. According to the utility model, the defoaming shovels with the defoaming nets are arranged on the side end surface of the stirring shaft, and bubbles are sucked into the defoaming shovels, so that the bubbles are crushed by the defoaming nets, the defoaming is realized, and the content of the bubbles on the surface of sewage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an aeration filter tank for industrial wastewater treatment. Background Art

[0002] Industrial wastewater can generally be roughly divided into wastewater, wastewater, leather-making wastewater, pesticide wastewater, metallurgical wastewater, oil refining wastewater, etc. according to the products and processing objects of industrial enterprises. If these industrial wastewaters are discharged directly, they will cause irreparable pollution to the surrounding environment and water resources. Therefore, aeration filters are needed to treat industrial wastewater.

[0003] The existing aeration tank will produce a large number of bubbles during the aeration process. The bubbles adhere to the surface of the sewage, seriously affecting the contact area between the sewage and the air, thereby reducing the decomposition rate of microorganisms. Most of the existing technologies suppress bubble production by adding defoaming agents, but even if defoaming agents are added, bubbles will still be generated. In addition, since the water is circulated during the aeration process, the defoaming agent needs to be added frequently, wasting manpower. Therefore, an industrial wastewater treatment aeration filter is needed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide an aeration filter tank for industrial wastewater treatment, so as to solve the problem of a large number of bubbles being generated during the aeration treatment of sewage in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an aeration filter tank for industrial wastewater treatment, comprising an aeration tank body, an air supply pipe is arranged at the outer end of the aeration tank body, an aeration nozzle connected to the air supply pipe is arranged inside the aeration tank body, an equipment bracket is arranged on the upper end surface of the aeration tank body, a motor is arranged on the upper end surface of the equipment bracket, a stirring shaft is arranged on the lower end of the motor, stirring blades are arranged on the bottom of the side end surface of the stirring shaft, a defoaming shovel is sleeved on the stirring shaft, an air inlet is arranged on the side end surface of the defoaming shovel, a reflux port is arranged at the bottom of the defoaming shovel, an exhaust fan is arranged on the upper end surface of the defoaming shovel, and a defoaming net is arranged inside the defoaming shovel.

[0006] Preferably, the exhaust fan is connected to the top of the debubble shovel, and the debubble net is obliquely arranged on the inner end face of the air inlet. The exhaust fan draws air from the top of the debubble shovel to suck the bubbles into the debubble shovel, so that the debubble net crushes the bubbles.

[0007] Preferably, a guide plate is provided on the front end surface of the debubble shovel, and the guide plate is a hollow stainless steel plate in the shape of a right-angled triangle, which guides the debubble shovel into the debubble shovel.

[0008] Preferably, the surface of the debubble net is provided with debubble nails, which can break the bubbles and further improve the debubble effect.

[0009] Preferably, the stirring shaft is provided with a key shaft, the defoaming shovel is provided with a key groove corresponding thereto, and the defoaming shovel is sleeved on the key shaft and slidably connected thereto, so that the defoaming shovel can slide up and down with the liquid level of the sewage.

[0010] Preferably, a pressure regulating chamber is provided on the side end surface of the defoaming shovel, and the pressure regulating chamber is a hollow cavity, through which the defoaming shovel floats on the sewage surface.

[0011] Preferably, a water injection port is provided at the top of the pressure regulating chamber, and a drainage port is provided at the bottom of the pressure regulating chamber, and water is injected into the pressure regulating chamber to adjust the diving depth of the defoaming shovel.

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

[0013] 1. The utility model arranges a defoaming shovel with a defoaming net on the side end face of the stirring shaft to suck bubbles into the defoaming shovel, and then the bubbles are crushed by the defoaming net to achieve defoaming and reduce the foam content on the sewage surface.

[0014] 2. The utility model uses a sliding connection between the defoaming shovel and the pressure regulating chamber structure so that the defoaming shovel can float on the sewage surface, thereby adapting to sewage with different liquid heights, and the pressure regulating chamber structure enables it to adapt to sewage with different concentrations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front cross-sectional view of the utility model;

[0016] Figure 2 It is a side sectional view of the foam removal shovel structure of the utility model;

[0017] Figure 3 It is a top view of the utility model.

[0018] In the figure: 1 aeration tank body, 11 equipment bracket, 12 motor, 13 stirring shaft, 131 key shaft, 14 stirring blade, 15 defoaming shovel, 151 air inlet, 152 defoaming net, 153 defoaming nail, 154 reflux port, 155 guide plate, 156 pressure regulating chamber, 157 water injection port, 158 drainage port, 159 key slot, 16 exhaust fan, 2 air supply pipe, 21 aeration nozzle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0020] See also Figures 1 to 3 An industrial wastewater treatment aeration filter tank shown in the figure includes an aeration tank body 1, an air supply pipe 2 is provided at the outer end of the aeration tank body 1, an aeration nozzle 21 connected to the air supply pipe 2 is provided in the aeration tank body 1, an equipment bracket 11 is provided on the upper end surface of the aeration tank body 1, a motor 12 is provided on the upper end surface of the equipment bracket 11, a stirring shaft 13 is provided at the lower end of the motor 12, a stirring blade 14 is provided at the bottom of the side end surface of the stirring shaft 13, a defoaming shovel 15 is sleeved on the stirring shaft 13, an air inlet 151 is provided on the side end surface of the defoaming shovel 15, a reflux port 154 is provided at the bottom of the defoaming shovel 15, an exhaust fan 16 is provided on the upper end surface of the defoaming shovel 15, and a defoaming net 152 is provided in the defoaming shovel 15.

[0021] The exhaust fan 16 is connected to the top of the debubble shovel 15, and the debubble net 152 is obliquely arranged on the inner end surface of the air inlet 151. The exhaust fan 16 draws air from the top of the debubble shovel 15 to suck the bubbles into the debubble shovel 15, so that the debubble net 152 crushes the bubbles.

[0022] A guide plate 155 is provided on the front end surface of the debubble shovel 15 . The guide plate 155 is a hollow stainless steel plate in a right-angled triangle shape, and guides the debubble shovel 15 into the debubble shovel 15 .

[0023] The surface of the debubble net 152 is provided with debubble nails 153, and the debubble nails 153 are used to break the bubbles, thereby further improving the debubble effect.

[0024] A key shaft 131 is provided on the stirring shaft 13, and a key groove 159 corresponding thereto is provided on the defoaming shovel 15. The defoaming shovel 15 is sleeved on the key shaft 131 and slidably connected thereto, so that the defoaming shovel 15 can slide up and down with the liquid level of the sewage.

[0025] A pressure regulating chamber 156 is provided on the side end surface of the defoaming shovel 15 . The pressure regulating chamber 156 is a hollow cavity. The defoaming shovel 15 floats on the sewage surface through the pressure regulating chamber 156 .

[0026] A water injection port 157 is provided at the top of the pressure regulating chamber 156 , and a drainage port 158 ​​is provided at the bottom of the pressure regulating chamber 156 . Water is injected into the pressure regulating chamber 156 to adjust the diving depth of the defoaming shovel 15 .

[0027] When the aeration tank is in use: air is supplied to the aeration nozzle 21 through the air supply pipe 2 to aerate the sewage, and the stirring shaft 13 is driven to rotate by the motor 12, thereby driving the stirring blade 14 and the defoaming shovel 15 to rotate. While stirring the sewage, the defoaming shovel 15 sucks the bubbles on the surface of the sewage into the defoaming shovel 15, and the bubbles are intercepted by the defoaming net 152. Under the action of the exhaust fan 16, the bubbles are crushed by the mesh of the defoaming net 152, and some of them are pierced by the defoaming nails 153 on the surface, thereby achieving the purpose of defoaming, and the defoaming shovel 15 is floated on the sewage surface through the pressure regulating chamber 156, so that it can adjust the height adaptively according to the sewage height.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aeration filter for industrial wastewater treatment, characterized in that: include: An aeration tank body (1), wherein an air supply pipe (2) is arranged at the outer end of the aeration tank body (1), an aeration nozzle (21) which is connected to the air supply pipe (2) is arranged inside the aeration tank body (1), an equipment bracket (11) is arranged at the upper end surface of the aeration tank body (1), a motor (12) is arranged at the upper end surface of the equipment bracket (11), a stirring shaft (13) is arranged at the lower end of the motor (12), a stirring blade (14) is arranged at the bottom of the side end surface of the stirring shaft (13), a defoaming shovel (15) is sleeved on the stirring shaft (13), an air inlet (151) is arranged at the side end surface of the defoaming shovel (15), a return port (154) is arranged at the bottom of the defoaming shovel (15), an exhaust fan (16) is arranged at the upper end surface of the defoaming shovel (15), and a defoaming net (152) is arranged inside the defoaming shovel (15).

2. The industrial wastewater treatment aeration filter according to claim 1, characterized in that: The exhaust fan (16) is connected to the top of the defoaming shovel (15), and the defoaming net (152) is arranged obliquely on the inner end surface of the air inlet (151).

3. The industrial wastewater treatment aeration filter according to claim 1, characterized in that: A guide plate (155) is provided on the front end surface of the defoaming shovel (15), and the guide plate (155) is a hollow stainless steel plate in the shape of a right-angled triangle.

4. The industrial wastewater treatment aeration filter according to claim 1, characterized in that: The surface of the debubble net (152) is provided with debubble nails (153).

5. The aeration filter for industrial wastewater treatment according to claim 1, characterized in that: The stirring shaft (13) is provided with a key shaft (131), the defoaming shovel (15) is provided with a key groove (159) corresponding thereto, and the defoaming shovel (15) is sleeved on the key shaft (131) and is slidably connected thereto.

6. The industrial wastewater treatment aeration filter according to claim 1, characterized in that: A pressure regulating chamber (156) is provided on the side end surface of the defoaming shovel (15), and the pressure regulating chamber (156) is a hollow cavity.

7. An aeration filter for treating industrial wastewater according to claim 6, characterized in that: The top of the pressure regulating chamber (156) is provided with a water injection port (157), and the bottom of the pressure regulating chamber (156) is provided with a water discharge port (158).

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