Air floatation device for circular treatment of wastewater

Abstract

The utility model discloses an air flotation device for wastewater circulation treatment, which relates to the technical field of wastewater treatment and comprises an air flotation mechanism, a floating oil and scum scraper motor, a scum falling groove, a backflow collecting box and an air compressor. The floating oil and scum scraper motor is arranged on the upper portion of the air flotation mechanism, the scum falling groove is formed in one side of the air flotation mechanism, the backflow collecting box is arranged on the other side of the air flotation mechanism, a mounting part lower than the scum falling groove is arranged on one side of the backflow collecting box, and a sewage discharging pipeline is arranged on the lower portion of the backflow collecting box. The air compressor is connected with the air flotation mechanism and conveys an air source to the air flotation mechanism; the design of the device can be operated under the unattended condition, and the workload of manually adjusting the water level by operators is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to wastewater treatment technical field, specifically a kind of air floatation device for wastewater recycling treatment. BACKGROUND

[0002] In the field of industrial wastewater treatment, air floatation device is widely used due to its excellent treatment performance. However, in actual operation, especially without human operation control, the liquid level of the air floatation device is often difficult to control. Since the liquid level control of the air floatation device directly affects the effect of wastewater treatment, but in actual operation, the on-site staff still cannot achieve stable and controllable tank liquid level after multiple adjustments.

[0003] In the prior art, the liquid level of the air floatation device usually needs to be adjusted manually by the outlet valve to maintain the liquid level slightly below the highest point of the slag chute. Although this method can achieve the effect of scraping slag and removing oil to some extent, the liquid level of the air floatation device changes frequently and is affected by many factors, so continuous human intervention is often required. The operator must frequently monitor the liquid level and make manual adjustments, which not only increases the workload but also causes great inconvenience.

[0004] In addition, the traditional air floatation device often has a small amount of overflow in the slag chute during the treatment process, resulting in waste of water resources. With the increasing strictness of environmental protection regulations, how to effectively reduce the waste of resources during wastewater treatment has become a problem to be solved. Frequent liquid level adjustment and unnecessary water resource consumption restrict the efficiency and economy of the air floatation device. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide an air floatation device for wastewater recycling treatment to solve the technical problems of difficult control of the liquid level of the air floatation device, the need for continuous human intervention for liquid level adjustment of the air floatation device, and the frequent occurrence of a small amount of overflow in the slag chute, resulting in waste of water resources during operation of the existing industrial wastewater treatment system air floatation device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an air floatation device for wastewater recycling treatment, comprising an air floatation mechanism, a floating oil and floating slag scraper motor, a slag chute, a backflow collection tank, and an air compressor; the floating oil and floating slag scraper motor is arranged at the upper part of the air floatation mechanism, the slag chute is installed on one side of the air floatation mechanism, the backflow collection tank is arranged on the other side of the air floatation mechanism, and one side of the backflow collection tank is provided with a mounting part lower than the slag chute, and the lower part of the backflow collection tank is provided with a blowdown pipeline; the air compressor is connected with the air floatation mechanism and supplies gas source for the air floatation mechanism.

[0007] Preferably, the installation part is 15-20mm lower than the highest point of the slag chute.

[0008] Preferably, the air floatation mechanism is circular in structure.

[0009] Preferably, the air floatation mechanism is circular in structure.

[0010] Preferably, the air floatation mechanism is circular in structure.

[0011] Preferably, the air floatation mechanism is circular in structure.

[0012] Preferably, the air floatation mechanism is circular in structure.

[0013] Compared with the prior art, the air floatation mechanism has the advantages that:

[0014] The device can operate under unattended conditions, greatly reducing the workload of manual water level adjustment of operating personnel, and improving the automation level of the equipment.

[0015] By increasing the steel plate with slope on the upper part of the slag chute and making it form an angle of 30°-45° with the slag chute, the collection capacity of floating oil and floating slag is enhanced, and the purification effect of the air floatation device is improved.

[0016] The design of the backflow collection tank makes the position of the single-sided installation part lower than the highest point of the slag chute, ensuring that a small amount of water can be effectively collected when the water level of the air floatation device rises, and then returned to the industrial wastewater regulating tank through the blowdown pipeline, thereby stabilizing the liquid level.

[0017] Through the design of the backflow system, the water resources generated during the treatment process can be effectively utilized, unnecessary waste of water resources is avoided, and the overall water resource utilization efficiency is improved.

[0018] The improved air floatation device has higher operation reliability in actual application, can adapt to the complex environment of industrial wastewater treatment, and ensures long-term stable operation.

[0019] In summary, the air floatation device realizes optimization in efficiency, stability, automation and resource saving through reasonable layout and function integration of each part, and comprehensively improves the performance and effect of industrial wastewater treatment. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] In the figure: 1, air float mechanism; 2, oil slick skimming scraper motor; 3, air compressor; 4, dissolved air tank; 5, dissolved air pump; 6, oil slick collecting tank; 7, water inlet device; 8, sewage pipeline; 9, slag chute; 10, backflow collecting tank; 11, guide plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "vertical", "upper", "lower", "horizontal" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0024] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection", "welding" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] When the wastewater treatment system gas floatation device is running, the liquid level of the gas floatation device is difficult to control without human operation control, and the normal oil and slag removal conditions cannot be reached. In order to stably control the best liquid level of the gas floatation device, the operation personnel need to manually adjust the outlet water manual valve frequently, which increases the workload of manual adjustment of the operation personnel, and a small amount of overflow frequently occurs in the slag chute, which causes waste of water resources. Therefore, the industrial wastewater circulating treatment gas floatation device provided in the patent can effectively solve the above problems, as follows:

[0026] Please refer to Figure 1In the embodiment, a gas float device for wastewater recycling treatment is provided, which comprises a gas float mechanism 1, the gas float mechanism 1 integrates coagulation, gas floatation and slag scraping, the gas float mechanism 1 is in a circular structure, the water inlet, the water outlet and the slag discharge outlet of the gas float mechanism 1 are all concentrated on the upper part of the pool body, the gas float device is provided with a floating oil and slag scraper motor 2 and a slag chute 9 on the upper part of the gas float mechanism 1, the floating oil and slag collected by the slag chute 9 are discharged to a floating oil collecting tank 6, the floating oil collecting tank 6 is connected with the slag chute 9 through a pipeline, a backflow collecting tank 10 is installed on the back of the slag chute 9, an air compressor 3 for supplying air to the gas float device, a dissolved air tank 4 and a dissolved air pump 5 connected with the air compressor 3, a water inlet device 7 in the middle of the gas float mechanism 1, a sewage discharge pipeline 8 connected with the bottom of the gas float mechanism 1, the main function of the floating oil and slag scraper motor 2 is to drive the scraper, wherein the scraper is installed on the lower part of the scraper motor 2 and is in a level position with the slag chute 9, the existing technology is adopted, the floating oil and slag on the surface of the gas float mechanism 1 are effectively cleaned and collected through the driving of the floating oil and slag scraper motor 2, specifically, a complete set of backflow collecting tank 10 and the matching connecting pipeline for collecting the overflow on the uppermost part of the gas float device are installed on the upper part of the gas float mechanism 1, a guide plate 11 is added on the slag chute 9 in front of the scraper, the guide plate 11 is at an angle of 30°-45° with the slag chute 9, the collection and discharge capacity of the slag chute 9 is enhanced, and the function of deep purification of the gas float device to improve the wastewater quality is realized, the backflow collecting tank 10 is added, the single-sided installation part of the backflow collecting tank 10 is welded to the back of the slag chute 9, the position of the installation part is 15-20 mm lower than the highest point of the slag chute 9, the DN50 pipeline at the bottom of the backflow collecting tank 10 is connected to the sewage discharge pipeline 8, when the water level of the gas float mechanism 1 rises to this position, a small amount of water is collected through the backflow collecting tank 10 and is backflowed to the industrial wastewater adjusting tank through the sewage discharge pipeline 8, which realizes the purpose of recycling treatment of purification and improvement of industrial wastewater quality, stabilizes the liquid level of the gas float device, achieves the condition of unattended operation, greatly reduces the workload of manual adjustment of the operating personnel, beneficially realizes the saving of water resources, avoids the waste of water resources, and comprehensively improves the reliable performance of the industrial wastewater gas float device.

[0027] In summary, the gas float device for wastewater recycling treatment can realize the purpose of recycling treatment of purification and improvement of industrial wastewater quality, stabilize the liquid level of the gas float device, achieve the condition of unattended operation, greatly reduce the workload of manual adjustment of the operating personnel, beneficially realize the saving of water resources, avoid the waste of water resources, and comprehensively improve the reliable performance of the industrial wastewater gas float device.

[0028] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An air floatation device for wastewater recycling treatment, characterized by, Including air float mechanism (1), oil slick scum scraper motor (2), residue chute (9), backflow collection tank (10) and air compressor (3); The oil slick scum scraper motor (2) is set in the upper portion of the air float mechanism (1), the residue chute (9) is installed in one side of the air float mechanism (1), the backflow collection tank (10) is set in the other side of the air float mechanism (1) and the one side of the backflow collection tank (10) is provided with the installation part lower than residue chute (9), the lower portion of the backflow collection tank (10) is provided with blowdown pipe (8); The air compressor (3) is connected with the air float mechanism (1) and transports gas source for air float mechanism (1).

2. The air floatation device for wastewater recycling treatment according to claim 1, wherein The position of the installation part is 15-20mm lower than the highest point of the residue chute (9).

3. The air floatation device for wastewater recycling treatment according to claim 1, wherein The air float mechanism (1) is circular structure as a whole.

4. The gas floatation device for wastewater recycling treatment according to claim 1, wherein It further includes dissolved air tank (4) and dissolved air pump (5), and the dissolved air tank (4) and dissolved air pump (5) are connected with the air compressor (3).

5. The gas floatation device for wastewater recycling treatment according to claim 1, wherein It further includes flow guide plate (11), and the flow guide plate (11) is set in the upper portion of the residue chute (9).

6. The gas floatation device for wastewater circulating treatment according to claim 5, wherein The flow guide plate (11) is at an angle of 30°-45° with the residue chute (9).

7. The gas floatation device for wastewater recycling treatment according to claim 1, wherein It further includes oil slick collection tank (6), and the oil slick collection tank (6) is connected with the residue chute (9) through a pipeline.

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