Dissolved air flotation machine for sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a dissolved air flotation machine for sewage treatment, which comprises a box body in which a dissolved air component is arranged. The top of the assembly is provided with inflation equipment, and the output end is connected with multiple inflation pipes. The tail end of each group of inflation pipes is connected with a main pipe which is provided with a communicating pipe, and the tail end of each group of inflation pipes is connected with an auxiliary pipe. The main pipe, the auxiliary pipe and the communicating pipe are all provided with gas nozzles, and the main pipe and the auxiliary pipe are connected with the mounting base. The arranged gas dissolving assembly can uniformly convey gas to the main pipe, the auxiliary pipe and the communicating pipe, and the gas is released into sewage through the nozzles, so that sufficient gas dissolving treatment is realized, and the gas utilization rate and the pollutant removal effect are improved. The pressing plate is matched with the slag removal frame, so that dross and impurities are effectively removed. Large-particle scum is captured through the design of the sawtooth openings, solid-liquid separation is achieved through the filtrate holes, the deslagging process is simplified, efficiency is improved, and maintenance cost is reduced. According to the utility model, all the components are matched for use, so that efficient gas dissolving treatment and slag removal operation are realized, the treatment effect and the operation efficiency are improved, and the practical value is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a dissolved air flotation machine for sewage treatment. Background Art

[0002] Wastewater treatment is a vital environmental protection measure. It refers to the removal of harmful substances from wastewater containing pollutants through a series of complex physical, chemical and biological treatment processes, so that the water quality can meet environmental discharge standards or reusable water quality requirements. This process aims to reduce the pollution of wastewater to the environment and protect human health and ecological balance.

[0003] In the field of sewage treatment, dissolved air flotation is a highly efficient sewage treatment equipment widely used in various wastewater treatment scenarios. Its working principle is mainly to use the full mixing of air or oxygen with wastewater to form tiny bubbles, which can absorb pollutants such as suspended particles and grease in the wastewater, thereby achieving effective removal of pollutants.

[0004] However, traditional dissolved air flotation machines often have high energy consumption during operation, and the treatment effect is often not stable enough. During the treatment process, it is impossible to fully dissolve the soluble substances and gases in the solution, thus affecting the removal effect of pollutants. In addition, traditional dissolved air flotation machines also have shortcomings in waste residue cleaning, which will hinder the normal operation of the equipment and affect the efficiency and effect of sewage treatment.

[0005] Therefore, based on the above technical problems, it is necessary for technicians in this field to develop a dissolved air flotation machine for sewage treatment. Utility Model Content

[0006] The utility model aims to provide a dissolved air flotation machine for sewage treatment to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A technical solution for a dissolved air flotation machine for sewage treatment, comprising a box body, wherein a dissolved air component is arranged in the box body, wherein the dissolved air component comprises an aeration device installed on the top of the box body, wherein the output end of the aeration device is connected to a plurality of groups of aeration tubes, wherein a mounting seat is arranged at the bottom of the box body, wherein the tail end of each group of the aeration tubes is connected to a main tube, wherein a connecting tube is arranged on the main tube, and a sub-tube is connected to the tail end of the connecting tube, wherein a plurality of gas nozzles are installed on the main tube, the sub-tube and the connecting tube, and the main tube and the sub-tube are connected to the mounting seat.

[0009] As a preferred technical solution, a slag removal component is arranged on the top of the box body, and the slag removal component includes a pressure plate, which is arranged in a through shape, and a slag removal frame is arranged in the opening of the pressure plate, and a plurality of serrated openings are arranged on the top of the slag removal frame, and a plurality of filtrate holes are arranged at the bottom of the slag removal frame.

[0010] As a preferred technical solution, the pressing plate is in close contact with the inner wall of the box.

[0011] As a preferred technical solution, a lifting assembly is provided on the top of the box body, and the lifting assembly includes an outer shell, a winding motor is provided in the outer shell, the output end of the winding motor is connected to the main shaft, a secondary shaft is provided on the adjacent side of the main shaft, and a main pulley and a secondary pulley are respectively installed on the end faces of the main shaft and the secondary shaft, and the main pulley and the secondary pulley are driven by a belt.

[0012] As a preferred technical solution, the main shaft and the secondary shaft are both provided with a winding drum, and a winding rope is wound around the winding drum, and the winding rope is connected to the pressure plate.

[0013] As a preferred technical solution, a slag removal valve is provided on the upper outer wall of the box body, and a drain valve is provided on the lower outer wall of the box body.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model is a dissolved air flotation machine for sewage treatment. The dissolved air component is capable of evenly conveying gas to the main pipe, the auxiliary pipe and the connecting pipe through the gas filling pipe, and releasing it into the sewage through the gas nozzle, thereby achieving full dissolved air treatment of the sewage. This design not only improves the utilization rate of the gas, but also enhances the removal effect of pollutants in the sewage. Through the cooperation of the pressure plate and the slag removal frame, the scum and impurities in the sewage can be effectively removed. The serrated mouth design on the top of the slag removal frame helps to capture and intercept larger scum particles, while the filtrate hole allows the treated liquid to pass through, thereby achieving solid-liquid separation. This design not only simplifies the slag removal process, but also improves the slag removal efficiency and reduces the equipment maintenance cost. The utility model realizes efficient dissolved air treatment and slag removal operation of sewage through the coordinated use of the dissolved air component, the slag removal component and the lifting component, improves the treatment effect and operation efficiency of the equipment, and has important practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a dissolved air flotation machine for sewage treatment;

[0017] Figure 2 A schematic diagram of the inflation structure of a dissolved air flotation machine for sewage treatment;

[0018] Figure 3It is a schematic diagram of the structure of a slag removal component of a dissolved air flotation machine for sewage treatment;

[0019] Figure 4 The present invention is a schematic diagram of the structure of a lifting component of a dissolved air flotation machine for sewage treatment.

[0020] In the accompanying drawings: 1. box body; 11. slag removal valve; 12. drain valve; 21. inflation device; 22. inflation pipe; 23. mounting seat; 24. main pipe; 25. connecting pipe; 26. auxiliary pipe; 27. gas nozzle; 31. pressure plate; 32. slag removal frame; 33. serrated mouth; 34. filtrate hole; 4. outer shell; 41. winding motor; 42. main shaft; 43. winding drum; 44. main pulley; 45. auxiliary pulley; 46. auxiliary shaft; 47. belt; 48. winding rope. DETAILED DESCRIPTION

[0021] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present invention by illustrating examples of the present invention.

[0022] Example 1

[0023] like Figure 1 , Figure 2 , Figure 3 As shown, the utility model provides a technical solution of a dissolved air flotation machine for sewage treatment: comprising a box body 1, a slag removal valve 11 is arranged on the upper outer wall of the box body 1, a drain valve 12 is arranged on the lower outer wall of the box body 1, a dissolved air component is arranged in the box body 1, the dissolved air component comprises an aeration device 21 installed on the top of the box body 1, a plurality of groups of aeration tubes 22 are connected to the output end of the aeration device 21, a mounting seat 23 is arranged at the bottom of the box body 1, a main pipe 24 is connected to the tail end of each group of aeration tubes 22, a connecting pipe 25 is arranged on the main pipe 24, and a sub-pipe 26 is connected to the tail end of the connecting pipe 25, a plurality of gas nozzles 27 are installed on the main pipe 24, the sub-pipe 26 and the connecting pipe 25, and the main pipe 24 and the sub-pipe 26 are connected to the mounting seat 23;

[0024] A slag removal assembly is arranged at the top of the box body 1, and the slag removal assembly includes a pressing plate 31. The pressing plate 31 is tightly attached to the inner wall of the box body 1, and the pressing plate 31 is arranged in a through shape. A slag removal frame 32 is arranged in the opening of the pressing plate 31, and a plurality of serrated openings 33 are arranged on the top of the slag removal frame 32, and a plurality of filtrate holes 34 are arranged at the bottom of the slag removal frame 32.

[0025] In this embodiment, when in use, the gas is filled into the gas pipe 22 through the gas filling device 21, and the gas is transported to the main pipe 24, the auxiliary pipe 26 and the connecting pipe 25 through the gas filling pipe 22, and released into the sewage through the gas nozzle 27, so as to achieve full gas dissolution treatment of the sewage. The scum and impurities in the treated sewage will be trapped above the pressing plate 31 under the action of the pressing plate 31 and the slag removal frame 32, and the treated liquid will flow into the box body 1 through the filtrate hole 34 at the bottom of the slag removal frame 32.

[0026] Example 2

[0027] See also Figure 4 A lifting assembly is arranged on the top of the box body 1, and the lifting assembly includes a shell 4, a winding motor 41 is arranged in the shell 4, the output end of the winding motor 41 is connected to the main shaft 42, and a secondary shaft 46 is arranged on the adjacent side of the main shaft 42. The end faces of the main shaft 42 and the secondary shaft 46 are respectively installed with a main pulley 44 and a secondary pulley 45, and the main pulley 44 and the secondary pulley 45 are driven by a belt 47. A winding drum 43 is mounted on the main shaft 42 and the secondary shaft 46, and a winding rope 48 is wound around the winding drum 43, and the winding rope 48 is connected to the pressure plate 31.

[0028] In this embodiment, by starting the winding motor 41, the winding motor 41 drives the main shaft 42 to rotate, and the main shaft 42 drives the secondary shaft 46 to rotate through the belt 47, so that the winding drum 43 on the main shaft 42 and the secondary shaft 46 rotates at the same time, realizing the winding or release of the winding rope 48, and then controlling the lifting and lowering of the pressing plate 31. This design makes the slag removal operation more convenient and improves the operating efficiency of the equipment.

[0029] The working principle and use process of this utility model:

[0030] First, in the dissolved gas treatment part, the gas is filled into the gas pipe 22 through the gas filling device 21, and the gas is then transported to the main pipe 24, the auxiliary pipe 26 and the connecting pipe 25, and evenly released into the sewage through the gas nozzle 27. In this way, the pollutants in the sewage can fully contact and react with the gas, and the dissolved gas treatment is achieved. This design improves the utilization rate of the gas and enhances the treatment effect.

[0031] Secondly, in the slag removal operation part, the slag and impurities in the sewage treated by dissolved air will be trapped above the pressing plate 31 under the joint action of the pressing plate 31 and the slag removal frame 32. The serrated opening 33 on the top of the slag removal frame 32 is designed to help capture and intercept larger slag particles, while the filtrate hole 34 allows the treated liquid to pass through to achieve solid-liquid separation. In this way, the slag and impurities are effectively removed, improving the treatment quality of the sewage.

[0032] Finally, the lifting and lowering adjustment part can realize the lifting and lowering operation of the pressing plate 31 by controlling the winding motor 41 in the lifting assembly. When it is necessary to clean the floating slag in the slag removal frame 32, the winding motor 41 can be started to release the winding rope 48 to make the pressing plate 31 rise; when it is necessary to continue the slag removal, the winding rope 48 is wound to make the pressing plate 31 fall. This design makes the slag removal operation more convenient and improves the operating efficiency of the equipment.

[0033] The utility model realizes efficient gas dissolution treatment and slag removal operation of sewage through the coordinated use of gas dissolution components, slag removal components and lifting components, improves the treatment effect and operation efficiency of the equipment, and has important practical value. In practical applications, the working parameters of each component can be adjusted according to specific needs to achieve the best treatment effect.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0035] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0037] According to the embodiments of the present invention as described above, these embodiments do not describe all the details in detail, nor do they limit the present invention to specific embodiments. Obviously, many modifications and changes can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that technicians in the relevant technical field can make good use of the present invention and the modified use based on the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dissolved air flotation machine for sewage treatment, characterized in that: The invention comprises a box (1), wherein a gas dissolving assembly is arranged in the box (1), wherein the gas dissolving assembly comprises an inflating device (21) mounted on the top of the box (1), wherein the output end of the inflating device (21) is connected to a plurality of groups of inflating tubes (22), wherein a mounting seat (23) is arranged at the bottom of the box (1), wherein the tail end of each group of inflating tubes (22) is connected to a main tube (24), wherein a connecting tube (25) is arranged on the main tube (24), and the tail end of the connecting tube (25) is connected to a secondary tube (26), wherein a plurality of gas nozzles (27) are mounted on the main tube (24), the secondary tube (26) and the connecting tube (25), and the main tube (24) and the secondary tube (26) are connected to the mounting seat (23); A slag removal component is arranged at the top of the box body (1), and the slag removal component comprises a pressing plate (31). The pressing plate (31) is arranged in a through shape, and a slag removal frame (32) is arranged in the opening of the pressing plate (31). The top of the slag removal frame (32) is provided with a plurality of sawtooth openings (33), and the lower part of the slag removal frame (32) is provided with a plurality of filtrate holes (34).

2. A dissolved air flotation machine for sewage treatment according to claim 1, characterized in that: The pressing plate (31) is in close contact with the inner wall of the box body (1).

3. A dissolved air flotation machine for sewage treatment according to claim 1, characterized in that: A lifting assembly is arranged on the top of the box body (1), and the lifting assembly comprises a shell (4), a winding motor (41) is arranged in the shell (4), the output end of the winding motor (41) is connected to a main shaft (42), a secondary shaft (46) is arranged on the adjacent side of the main shaft (42), and a main pulley (44) and a secondary pulley (45) are respectively installed on the end faces of the main shaft (42) and the secondary shaft (46), and the main pulley (44) and the secondary pulley (45) are driven by a belt (47).

4. A dissolved air flotation machine for sewage treatment according to claim 3, characterized in that: The main shaft (42) and the secondary shaft (46) are both provided with a winding drum (43), and a winding rope (48) is wound around the winding drum (43), and the winding rope (48) is connected to the pressure plate (31).

5. A dissolved air flotation machine for sewage treatment according to claim 1, characterized in that: The upper outer wall of the box body (1) is provided with a slag removal valve (11), and the lower outer wall of the box body (1) is provided with a drainage valve (12).

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