Air flotation machine for sewage treatment

Abstract

The utility model discloses an air floatation machine for sewage treatment, which comprises an air floatation machine body, a stirring machine, a stirring rod and a mixing assisting mechanism, the stirring machine is mounted above a reaction area case of the air floatation machine body, and the stirring rod of the stirring machine extends into the air floatation machine body. The mixing assisting mechanism comprises a supporting cylinder, pressing blocks, a fixed rod, a tile-shaped plate, a main shifting plate, an angle shifting plate, a bent plate, a rake frame, an extension plate, a steel wire rope and a throwing plate, the supporting cylinder is clamped, sleeved and welded outside a rod body of the stirring rod, the pressing blocks clamped outside the stirring rod are symmetrically pressed and placed on the upper cylinder wall of the supporting cylinder, and the mixing assisting mechanism is arranged on the stirring machine of the air flotation machine body by improving the stirring rod. The mixing assisting mechanism is assembled at the stirring rod to form a stirring and throwing structure, when sewage and a flocculating agent enter the air flotation machine body and are stirred by the stirring rod of the stirring machine, the mixing assisting mechanism can efficiently stir the sewage and the flocculating agent, and the sewage flocculation air flotation treatment efficiency in the air flotation machine body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air flotation machines, and particularly relates to an air flotation machine for sewage treatment. Background Technique

[0002] An air flotation machine is a water treatment equipment that generates a large number of fine bubbles in water through a dissolved air system, makes air attach to suspended matter particles in the form of highly dispersed tiny bubbles, creates a state with a density less than that of water, and uses the buoyancy principle to make it float on the water surface, thereby realizing the solid-liquid separation. The air flotation machine is divided into an ultra-efficient shallow air flotation machine, a vortex flotation machine, and a horizontal flow air flotation machine. It is applied in water supply, industrial wastewater, and urban sewage treatment. The advantages of the air flotation machine are that its solid-liquid separation equipment has the characteristics of less investment, extremely small floor area, high automation degree, and convenient operation and management.

[0003] When the existing air flotation machine is used for sewage treatment, after adding a flocculant and a coagulant aid in the reaction zone of the air flotation machine, a stirring rod with blades driven by a motor at the air flotation machine stirs and mixes the flocculant, the coagulant aid, and the sewage. Then, the raw water enters the air flotation contact zone for air flotation treatment. However, the blade stirring structure of the air flotation machine is relatively simple, and the stirring and mixing efficiency of the flocculant, the coagulant aid, and the sewage is relatively low, thus affecting the flocculation reaction of the sewage. Therefore, we propose an air flotation machine for sewage treatment. Content of the Utility Model

[0004] The main purpose of the utility model is to provide an air flotation machine for sewage treatment. An auxiliary mixing mechanism is improvedly arranged at the stirring rod at the mixer of the air flotation machine body. After the auxiliary mixing mechanism is assembled at the stirring rod, a stirring and throwing structure is formed. When sewage and a flocculant enter the air flotation machine body and are stirred by the stirring rod of the mixer, the auxiliary mixing mechanism can efficiently stir the sewage and the flocculant, improve the treatment efficiency of sewage flocculation and air flotation in the air flotation machine body, and can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A flotation machine for sewage treatment, comprising a flotation machine body, a mixer and a mixing rod. A mixer is installed above the reaction zone chassis of the flotation machine body, and the mixing rod of the mixer extends into the flotation machine body. It further includes a mixing aid mechanism. The mixing aid mechanism includes a support cylinder, a pressing block, a fixed rod, a tile-shaped plate, a main deflector, an angular deflector, a bent plate, a rake frame, an extension plate, a steel wire rope and a throwing plate. A support cylinder is welded to the outer casing of the mixing rod, and pressing blocks that are stuck outside the mixing rod are symmetrically placed on the upper cylinder wall of the support cylinder. Fixed holes are formed on the surface of the pressing block. A fixed rod that is inserted into the fixed hole is welded to the top of the cylinder body of the support cylinder. A tile-shaped plate that covers the outside of the support cylinder is welded to the outer block surface of the pressing block. A main deflector is welded to the outer arc surface of the plate body of the tile-shaped plate. An angular deflector is welded to the lower plate surface of the main deflector. A bent plate and a rake frame are respectively welded to the bilateral plate surfaces of the main deflector. An extension plate is welded to the outer arc plate surface of the bent plate. A throwing plate is connected to the lower plate body of the extension plate by a steel wire rope.

[0007] Further, through holes are formed on the plate surfaces of the extension plate and the throwing plate, and a steel wire rope passes through and is tied into a loop between the through holes of the extension plate and the throwing plate; after passing through the steel wire rope at the through holes of the extension plate and the throwing plate, they are tied and connected into a loop.

[0008] Further, rake rods are welded to the surface of the frame rod of the rake frame in a cross distribution; there are more rake rods outside the frame rod of the rake frame that can contact the flocculant and sewage.

[0009] Further, inclined throwing rods are symmetrically welded to the lower plate surface of the throwing plate away from the steel wire rope; the throwing plate rotates with the inclined throwing rods to additionally contact the flocculant and sewage.

[0010] Further, the block body of the pressing block is a C-shaped block body, and the C-shaped block body of the pressing block is symmetrically stuck outside the mixing rod; the C-shaped block body of the pressing block can be pressed and stuck outside the mixing rod.

[0011] Further, three groups of fixed holes are formed on the surface of the pressing block, and three groups of fixed rods are symmetrically welded to the annular upper cylinder surface of the support cylinder; the pressing block is adaptively clamped with the three groups of fixed rods of the support cylinder through the three groups of fixed holes.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] By improving and setting a mixing aid mechanism at the mixing rod of the mixer of the flotation machine body, the mixing aid mechanism forms a stirring and throwing structure after being assembled at the mixing rod. When sewage and flocculant enter the flotation machine body and are stirred by the mixing rod of the mixer, the mixing aid mechanism can efficiently stir the sewage and flocculant, improving the treatment efficiency of sewage flocculation and flotation in the flotation machine body. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of a flotation machine for sewage treatment of the utility model.

[0015] Figure 2 This is a schematic diagram of the disassembly of the stirring rod and the mixing assisting mechanism of a flotation machine for sewage treatment of the present utility model.

[0016] Figure 3 This is an exploded view of the mixing assisting mechanism of a flotation machine for sewage treatment of the present utility model.

[0017] In the figure: 1. Flotation machine body; 2. Mixer; 3. Stirring rod; 4. Mixing assisting mechanism; 5. Support cylinder; 6. Pressing block; 7. Fixed hole; 8. Fixed rod; 9. Tile-shaped plate; 10. Main deflector; 11. Angular deflector; 12. Bent plate; 13. Rake frame; 14. Rake rod; 15. Extension plate; 16. Steel wire rope; 17. Throwing plate; 18. Inclined throwing rod. Specific embodiments

[0018] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] As Figures 1-3 shown, a flotation machine for sewage treatment includes a flotation machine body 1, a mixer 2 and a stirring rod 3. The mixer 2 is installed above the reaction zone chassis of the flotation machine body 1, and the stirring rod 3 of the mixer 2 extends into the flotation machine body 1. It also includes a mixing assisting mechanism 4. The mixing assisting mechanism 4 includes a support cylinder 5, a pressing block 6, a fixed rod 8, a tile-shaped plate 9, a main deflector 10, an angular deflector 11, a bent plate 12, a rake frame 13, an extension plate 15, a steel wire rope 16 and a throwing plate 17. A support cylinder 5 is welded by clamping and sleeving on the outer rod body of the stirring rod 3, and pressing blocks 6 clamped on the outside of the stirring rod 3 are symmetrically pressed and placed on the upper cylinder wall of the support cylinder 5. Fixed holes 7 are opened on the surface of the pressing blocks 6. A fixed rod 8 inserted into the fixed holes 7 is welded at the top end of the cylinder body of the support cylinder 5. A tile-shaped plate 9 covering the outside of the support cylinder 5 is welded on the outer block surface of the pressing block 6, and a main deflector 10 is welded on the outer arc surface of the plate body of the tile-shaped plate 9. An angular deflector 11 is welded on the lower plate surface of the main deflector 10, and a bent plate 12 and a rake frame 13 are respectively welded on the bilateral plate surfaces of the main deflector 10. An extension plate 15 is welded on the outer arc plate surface of the bent plate 12, and a throwing plate 17 is connected by a steel wire rope 16 at the lower plate body of the extension plate 15.

[0020] Among them, through holes are opened on the plate bodies of the extension plate 15 and the throwing plate 17, and a steel wire rope 16 passes through and is tied into a circle between the through holes of the extension plate 15 and the throwing plate 17; after passing through the steel wire rope 16 at the through hole positions of the extension plate 15 and the throwing plate 17, they are tied into a circle.

[0021] Among them, rake rods 14 are welded in a cross distribution on the rod surface of the rake frame 13; there are more rake rods 14 outside the rod of the rake frame 13 that can contact the flocculant and sewage.

[0022] Among them, the lower plate surface of the throwing plate 17 away from the steel wire rope 16 is symmetrically welded with inclined throwing rods 18; the rotating inclined throwing rods 18 of the throwing plate 17 can additionally contact the flocculant and sewage.

[0023] Among them, the block body of the pressing block 6 is a C-shaped block body, and the C-shaped block body of the pressing block 6 is symmetrically clamped outside the stirring rod 3; the C-shaped block body of the pressing block 6 can be clamped outside the stirring rod 3.

[0024] Among them, three groups of fixed holes 7 are formed on the surface of the pressing block 6, and three groups of fixed rods 8 are symmetrically welded on the annular upper cylindrical surface of the supporting cylinder 5; the pressing block 6 is adaptively clamped with the three fixed rods 8 of the supporting cylinder 5 through the three fixed holes 7.

[0025] It should be noted that the present utility model is an air flotation machine for sewage treatment. After the supporting cylinder 5 of the auxiliary mixing mechanism 4 is improved and arranged at the stirring rod 3 of the mixer 2 of the air flotation machine body 1, the supporting cylinder 5 can support and hold the pressing block 6 on its surface. The pressing block 6 is clamped with the fixed rod 8 of the supporting cylinder 5 through the fixed hole 7. At the same time, the tile-shaped plate 9 outside the pressing block 6 can cover the outside of the supporting cylinder 5. At this time, the auxiliary mixing mechanism 4 is assembled outside the stirring rod 3. When sewage enters the air flotation machine body 1 below the mixer 2 and flocculant and coagulant aids are added, the motor of the mixer 2 can drive the stirring rod 3 to rotate, and the stirring rod 3 will drive the supporting cylinder 5 and the tile-shaped plate 9 to rotate. The main dial plate 10 outside the tile-shaped plate 9 can rotate to stir the flocculant, coagulant aids and sewage. Then, the corner dial plate 11 at the bottom of the main dial plate 10 can increase the water-pushing area. At the same time, the curved plates 12 and the rake frames 13 on both sides of the main dial plate 10 can also contact the sewage over a large area. The extension plates 15 at the curved plates 12 and the rake rods 14 at the rake frames 13 can also contact the sewage and the flocculant and rotate. At the same time, the throwing plate 17 connected by the steel wire rope 16 below the extension plate 15 and the inclined throwing rod 18 can throw the sewage in a rotating state, so as to improve the mixing reaction efficiency of the sewage with the flocculant and coagulant aids. Then, after the sewage is flocculated, it can enter the air flotation area of the air flotation machine body 1 below the partition plate for air flotation and subsequent slag discharge treatment.

[0026] It should be noted that the present utility model is an air flotation machine for sewage treatment. The components in the present utility model are all components known to those skilled in the art, and their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0027] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A flotation machine for sewage treatment, comprising a flotation machine body (1), a stirrer (2) and a stirring rod (3), wherein the stirrer (2) is installed above the reaction zone casing of the flotation machine body (1), and the stirring rod (3) of the stirrer (2) extends into the flotation machine body (1), characterized in that: The invention also comprises a mixing aid mechanism (4), wherein the mixing aid mechanism (4) comprises a support tube (5), a pressure block (6), a fixed rod (8), a tile plate (9), a main shifting plate (10), an angle shifting plate (11), a bent plate (12), a rake frame (13), an extension plate (15), a steel wire rope (16) and a flinging plate (17); the support tube (5) is welded to the rod body of the stirring rod (3) by a sleeve, and a pressure block (6) is symmetrically pressed on the upper wall of the support tube (5) and is clamped on the outside of the stirring rod (3); a fixed hole (7) is opened on the surface of the pressure block (6); the tube of the support tube (5) is A fixed rod (8) inserted into a fixed hole (7) is welded to the top of the body, a tile-shaped plate (9) covered outside the support tube (5) is welded to the outer block surface of the pressing block (6), and a main shifting plate (10) is welded to the outer arc surface of the tile-shaped plate (9), and an angle shifting plate (11) is welded to the lower plate surface of the main shifting plate (10), and a bent plate (12) and a rake frame (13) are respectively welded to the two side plate surfaces of the main shifting plate (10), and an extension plate (15) is welded to the outer arc plate surface of the bent plate (12), and a swinging plate (17) is connected to the lower plate body of the extension plate (15) by a steel wire rope (16).

2. The air flotation machine for sewage treatment according to claim 1, characterized in that: The plate surfaces of the extension plate (15) and the swing plate (17) are provided with through holes, and steel wire ropes (16) are passed through and tied into a loop between the through holes of the extension plate (15) and the swing plate (17).

3. The air flotation machine for sewage treatment according to claim 1, characterized in that: The surface of the rake frame (13) is cross-distributedly welded with rake rods (14).

4. The air flotation machine for sewage treatment according to claim 1, characterized in that: The lower plate surface of the swing plate (17) away from the steel wire rope (16) is symmetrically welded with an oblique swing rod (18).

5. The air flotation machine for sewage treatment according to claim 1, characterized in that: The block body of the pressing block (6) is a C-shaped block body, and the C-shaped block body of the pressing block (6) is symmetrically clamped outside the stirring rod (3).

6. The air flotation machine for sewage treatment according to claim 1, characterized in that: The surface of the pressing block (6) is provided with three groups of fixed holes (7), and the fixed rods (8) are symmetrically welded to the annular upper cylinder surface of the supporting cylinder (5) in three groups.

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