Oil-water separation cyclone air flotation assembly

Abstract

The utility model discloses an oil-water separation cyclone air flotation assembly, and relates to the technical field of oil-water separation. Comprising a barrel, a water inlet shell and an oil collecting bin, a releaser is arranged on the inner wall of the bottom of the barrel, a gas-liquid mixing pump is arranged at the bottom end of a pipeline of the releaser, and a gas-liquid pipeline is arranged at the connecting end of the gas-liquid mixing pump. According to the utility model, by arranging the releaser, the gas-liquid mixing pump and other parts, high-pressure air or other gases are injected into the dissolved air tank through the gas-liquid mixing pump in the air flotation equipment and are fully mixed with water under high pressure to form air-dissolved water, when the air-dissolved water passes through the releaser, the pressure suddenly drops, so that the dissolved gas is rapidly separated out to form bubbles, and the bubbles are separated out to form the air-dissolved water. The releaser instantly releases dissolved gas in the pressure dissolved gas water into tiny bubbles, the bubbles are attached to suspended particles, the density of the particles is remarkably reduced, the particles can rise to the surface in the water to form scum, and therefore the stability of oil-water solid-liquid separation is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil-water separation, in particular to an oil-water separation cyclone flotation component. Background Art

[0002] Oil-water separation is a separation technology based on the difference in physical properties of water and oil (such as density, viscosity and chemical affinity). This separation is crucial to environmental protection and industrial production because it can effectively remove oil pollutants from wastewater, prevent water pollution, and recover useful oil resources. There are many methods for oil-water separation, including gravity separation, centrifugal separation, electrical separation, adsorption separation and flotation separation. Each method has its own applicable occasions and efficiency characteristics. For example, gravity separation uses the density difference between oil and water to achieve separation through the principle of sedimentation; centrifugal separation uses the centrifugal force generated by high-speed rotation to quickly separate oil and water; flotation separation relies on tiny bubbles to bring oil droplets to the water surface to achieve separation. The oil-water separation cyclone flotation component is an environmentally friendly equipment used to treat oily wastewater.

[0003] At present, in the existing oil-water separation process, emulsified oil droplets are not easy to naturally stratify due to their stable water-in-oil structure, which makes it difficult to effectively remove them through traditional methods such as gravity separation. The stability of emulsified oil droplets is usually related to the presence of surfactants. These surfactants reduce the surface tension of the oil-water interface and increase the stability of the oil droplets. In order to solve this technical problem, the utility model proposes an oil-water separation cyclone flotation component. Utility Model Content

[0004] The main purpose of the utility model is to provide an oil-water separation cyclone flotation component, which can effectively solve the problems mentioned in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The oil-water separation cyclone flotation component includes a cylinder, a water inlet shell and an oil collecting bin. A releaser is provided inside the cylinder, and the releaser is suspended inside the cylinder using a support rod. A gas-liquid mixing pump is provided at the bottom end of the releaser pipeline. The gas-liquid mixing pump is located on one side of the cylinder. A gas-liquid pipeline is provided at the connecting end of the gas-liquid mixing pump. A cyclone bin is opened inside the cylinder, the releaser is provided at the bottom of the cyclone bin, and a spiral baffle is provided inside the cyclone bin. The spiral baffle is designed as a scroll spring-shaped baffle.

[0007] A water inlet pipe is provided inside one side of the water inlet shell, a baffle is provided inside the outermost circle of the spiral baffle, and the water inlet pipe passes through the baffle at one end away from the water inlet shell.

[0008] A coarse grid is provided inside the water inlet shell, and a primary oil separator is provided inside the water inlet shell, and the primary oil separator is located behind the coarse grid.

[0009] An oil drain pipe is provided inside the cylinder, and the oil drain pipe is an L-shaped pipe. The oil drain pipe is connected to the inside of the oil collecting bin. The oil collecting bin is located on one side of the cylinder. The oil drain pipe is inserted into the inside of the spiral baffle, and the vertical part of the oil drain pipe extends to the center of the spiral baffle.

[0010] A water outlet pipe is provided inside the cylinder, one end of the water outlet pipe is provided with a water outlet, a liquid level regulating rod is provided inside the water outlet pipe, and the water outlet pipe is located above the spiral baffle.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In the utility model, by providing components such as a releaser and a gas-liquid mixing pump, in the flotation equipment, high-pressure air or other gas is injected into the dissolved air tank through the gas-liquid mixing pump, and is fully mixed with water under high pressure to form dissolved air water. When the dissolved air water passes through the releaser, the pressure drops suddenly, causing the dissolved gas to quickly precipitate to form bubbles. The releaser releases the dissolved gas in the pressurized dissolved air water into tiny bubbles in an instant. These bubbles adhere to the suspended particles, significantly reducing the density of the particles, so that they can rise to the surface in the water to form scum, thereby effectively improving the stability of oil-water solid-liquid separation.

[0013] In the utility model, by providing components such as a coarse screen and a primary oil separator, the coarse screen can be used to remove larger suspended matter and floating matter in the water inlet shell to prevent these substances from entering subsequent treatment facilities, such as pumping stations and treatment pools, thereby protecting these equipment from damage. The primary oil separator uses a physical method to separate the floating oil and part of the dispersed oil in the wastewater by utilizing the density difference between oil and water, so as to reduce the burden on subsequent treatment facilities, prevent pipeline blockage, and reduce pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the oil-water separation cyclone flotation component of the utility model;

[0015] Figure 2 This is a schematic diagram of the vertical section structure of the cylinder of the oil-water separation cyclone flotation component of the utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the cylinder of the oil-water separation cyclone flotation component of the utility model;

[0017] Figure 4 This is a schematic diagram of the vertical section structure of the water inlet shell of the oil-water separation cyclone flotation assembly of the utility model;

[0018] Figure 5 This is an overall front cross-sectional view of the oil-water separation cyclone flotation component of the utility model.

[0019] In the figure: 1. Cylinder; 2. Cyclone chamber; 3. Water inlet shell; 4. Coarse screen; 5. Primary oil separator; 6. Water inlet pipe; 7. Oil discharge pipe; 71. Vertical part; 8. Oil collecting bin; 9. Water outlet pipe; 10. Water outlet; 11. Liquid level adjustment rod; 12. Releaser; 13. Gas-liquid mixing pump; 14. Gas-liquid pipeline; 15. Spiral baffle; 16. Baffle. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the oil-water separation cyclone flotation component;

[0022] The invention comprises a cylinder 1, a water inlet shell 3 and an oil collecting bin 8. A releaser 12 is provided inside the cylinder 1 and is suspended in the air by a support rod. A gas-liquid mixing pump 13 is provided at the bottom end of the releaser 12 pipeline. The gas-liquid mixing pump 13 is located on one side of the cylinder 1. A gas-liquid pipeline 14 is provided at the connecting end of the gas-liquid mixing pump 13. A vortex bin 2 is provided inside the cylinder 1. The releaser 12 is provided inside the vortex bin 2. The cylinder 1 is conical in shape. A spiral baffle 15 is provided inside the vortex bin 2. The spiral baffle 15 is designed as a scroll spring-shaped baffle. A water inlet pipe 6 is provided through one side of the water inlet shell 3. A baffle 16 is provided inside the outermost circle of the spiral baffle 15. The end of the water inlet pipe 6 away from the water inlet shell 3 passes through the baffle 16.

[0023] The cylinder 1 is the main component of the cyclone flotation assembly. The cyclone bin 2 is opened inside the cylinder 1. In the cyclone bin 2, the fluid containing solid particles enters the cyclone bin 2 through the water inlet pipe 6. The fluid forms a rotating flow, thereby accelerating the sedimentation rate of the suspended particles and realizing solid-liquid separation. In the oil-water separation process, the cyclone bin 2 can be used as a pretreatment step to separate the oil droplets and water through the action of centrifugal force. Due to the low density of the oil droplets, the centrifugal force they are subjected to in the cyclone bin 2 will cause them to move outward and settle at the bottom of the pool. The releaser 12 is suspended in the cyclone bin 2 opened inside the cylinder 1 by a supporting rod. The main function of the releaser 12 is to release the dissolved gas in the pressurized dissolved water into tiny bubbles in an instant. These bubbles attach to the suspended particles, significantly reducing the density of the particles, so that they can rise to the surface in the water to form scum, thereby realizing solid-liquid separation. In the flotation equipment, High-pressure air or other gas is injected into the air dissolving tank through the gas-liquid mixing pump 13 (dissolving air pump), and is fully mixed with water under high pressure to form dissolved air water. When the dissolved air water passes through the releaser 12, the pressure drops suddenly, causing the dissolved gas to precipitate rapidly to form bubbles. The gas-liquid mixing pump 13 is a pump that can simultaneously inhale gas and liquid. It mixes the gas and liquid through a high-speed rotating impeller and pressurizes the inside of the pump so that the gas is fully dissolved in the water. The gas-liquid pipeline 14 at the connecting end of the gas-liquid mixing pump 13 is used to connect with the next process. The gas-liquid pipeline 14 is an important component connecting the gas-liquid mixing pump 13 and subsequent processing equipment. The gas-liquid pipeline 14 is responsible for transporting the gas-liquid mixture generated by the pump to the next process. The design of the gas-liquid pipeline 14 must be able to withstand the pressure and corrosiveness of the mixed medium while maintaining good sealing performance to prevent gas leakage and liquid reflux.

[0024] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the oil-water separation cyclone flotation component;

[0025] A coarse grid 4 is provided inside the water inlet shell 3, and a primary oil separator 5 is provided inside the water inlet shell 3, and the primary oil separator 5 is located below the coarse grid 4. A water inlet pipe 6 is provided inside one side of the water inlet shell 3, and the water inlet pipe 6 is connected to the inside of the vortex bin 2. An oil drain pipe 7 is provided inside the cylinder 1, and the oil drain pipe 7 is an L-shaped pipe. The oil drain pipe 7 is inserted into the inside of the spiral baffle 15, and the vertical part 71 of the oil drain pipe 7 extends to the center of the spiral baffle 15. The oil drain pipe 7 is connected to the inside of the oil collecting bin 8, and the oil collecting bin 8 is located on one side of the cylinder 1. A water outlet pipe 9 is provided inside the cylinder 1, and a water outlet 10 is provided at one end of the water outlet pipe 9. A liquid level regulating rod 11 is provided inside the water outlet pipe 9.

[0026] The coarse screen 4 is a vertical bar screen inserted vertically into the water inlet shell 3. The coarse screen 4 inside the water inlet shell 3 can remove larger suspended matter and floating matter in the water inlet shell 3 to prevent these substances from entering subsequent treatment facilities, such as pumping stations and treatment pools, thereby protecting these equipment from damage. The primary oil separator 5 inside the water inlet shell 3 uses a physical method to separate the floating oil and partially dispersed oil in the wastewater by utilizing the density difference between oil and water to reduce the burden on subsequent treatment facilities, prevent pipeline blockage, and reduce pollution to the environment. The fluid treated by the coarse screen 4 and the primary oil separator 5 can enter the cyclone bin 2 through the water inlet pipe 6. The oil floating to the surface of the cyclone bin 2 is collected in the oil collecting bin 8 through the oil discharge pipe 7, and the clean water can be discharged or transported to the subsequent treatment link through the outlet pipe 9. The liquid level adjustment rod 11 inside the outlet pipe 9 ensures that the liquid level inside the outlet pipe 9 is maintained within the set safety and operating range to prevent overflow or drying up, thereby ensuring the smooth progress of the process flow.

[0027] The electrical components or electrical elements in this application are all common electrical equipment in the prior art. This application will not go into too much detail about their models or internal structures, and they can also be replaced by other power sources.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An oil-water separation cyclone flotation assembly, comprising a cylinder (1), a water inlet shell (3) and an oil collecting bin (8), characterized in that: A releaser (12) is provided inside the cylinder (1), and the releaser (12) is suspended inside the cylinder (1) by using a support rod body, a gas-liquid mixing pump (13) is provided at the bottom end of the releaser (12) pipeline, the gas-liquid mixing pump (13) is located on one side of the cylinder (1), and a gas-liquid pipeline (14) is provided at the connecting end of the gas-liquid mixing pump (13), a vortex chamber (2) is opened inside the cylinder (1), the releaser (12) is arranged at the bottom of the vortex chamber (2), a spiral baffle (15) is provided inside the vortex chamber (2), and the spiral baffle (15) is designed as a spiral spring-shaped baffle.

2. The oil-water separation cyclone flotation assembly according to claim 1, characterized in that: A water inlet pipe (6) is provided inside one side of the water inlet shell (3), a baffle (16) is provided inside the outermost circle of the spiral baffle (15), and the end of the water inlet pipe (6) away from the water inlet shell (3) passes through the baffle (16).

3. The oil-water separation cyclone flotation assembly according to claim 1, characterized in that: A coarse grid (4) is provided inside the water inlet shell (3), and a primary oil separator (5) is provided inside the water inlet shell (3), and the primary oil separator (5) is located behind the coarse grid (4).

4. The oil-water separation cyclone flotation assembly according to claim 1, characterized in that: An oil drain pipe (7) is provided through the interior of the cylinder (1), and the oil drain pipe (7) is an L-shaped pipe. The oil drain pipe (7) is connected to the interior of an oil collecting bin (8), and the oil collecting bin (8) is located on one side of the cylinder (1). The oil drain pipe (7) is inserted into the interior of a spiral baffle (15), and a vertical portion (71) of the oil drain pipe (7) extends to the center of the spiral baffle (15).

5. The oil-water separation cyclone flotation assembly according to claim 1, characterized in that: A water outlet pipe (9) is provided inside the cylinder (1), one end of the water outlet pipe (9) is provided with a water outlet (10), a liquid level regulating rod (11) is provided inside the water outlet pipe (9), and the water outlet pipe (9) is located above the spiral baffle.

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