A core forming slurry float bath

Abstract

The utility model relates to air floater technical field, concretely relates to a kind of furnace core forming slurry air flotation pond, including air flotation pond, the lower surface of air flotation pond is provided with four exhaust pipes, one end of four exhaust pipes is communicated with four aeration heads, the upper surface of four aeration heads is provided with four diffusion caps, multiple shunt holes are provided on four diffusion caps, the upper surface of four diffusion caps is fixedly connected with four fixing frames, the upper surface of four fixing frames is fixedly connected with four fairing, the inner surface of air flotation pond is provided with four guide plates.The shunt hole of diffusion cap can refine bubble, cooperate the four-prism structure of fairing to expand bubble diffusion space, significantly increase the contact area of bubble and slurry solid particles, utilize the high-pressure high-impact of four-prism stable plane outer wall to bear, reduce deformation risk, avoid fluid deflection through the directional drainage effect of edge, ensure that bubble evenly covers slurry area.

Description

Technical Field

[0001] This utility model relates to the field of air flotation technology, specifically to an air flotation tank for furnace core molding slurry. Background Technology

[0002] During the production and processing of furnace cores, the purity of the furnace core molding slurry directly affects the structural strength and high-temperature resistance of the furnace core. If the particle density of the slurry in the flotation tank is relatively high, it will sink to the bottom of the tank, causing accumulation at the bottom. This will result in insufficient adsorption by the furnace core molding device, which can easily lead to defects such as pores and cracks in the furnace core after molding.

[0003] The existing equipment's aeration components are mostly single aeration heads or asymmetrical layouts. When releasing bubbles, problems such as excessively large diameters and uneven distribution are prone to occur. There is a lack of effective bubble refinement and guiding structures, resulting in limited contact area between bubbles and slurry particles. Some equipment does not have bubble guiding components, resulting in short bubble rising trajectories and low contact probability with particles. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a flotation tank for furnace core molding slurry, which solves the problems of uneven bubble release and lack of bubble guiding structure generated by the aeration head in the flotation tank.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes an air flotation tank, with four exhaust pipes on the lower surface of the tank, one end of each exhaust pipe connected to four aeration heads, four diffusion caps on the upper surface of each aeration head, multiple diversion holes on each diffusion cap, four fixing frames fixedly connected to the upper surface of each diffusion cap, four flow guide hoods fixedly connected to the upper surface of each fixing frame, and four guide plates on the inner surface of the air flotation tank.

[0006] Preferably, an aerator is fixedly connected to the lower surface of the flotation tank, and a conveying pipe is fixedly connected to the output end of the aerator.

[0007] Preferably, the two ends of the delivery pipe are connected to four exhaust pipes.

[0008] Preferably, the four aeration heads are located inside the flotation tank, and the four aeration heads are symmetrically designed.

[0009] Preferably, the upper surface of the flotation tank is provided with a feed inlet, which is an open design.

[0010] Preferably, the four air deflectors are designed in a square pyramid shape, and the openings of the air deflectors gradually increase in size.

[0011] Preferably, the four guide plates are designed at a 45-degree angle, and the opening direction of the guide plates decreases from large to small.

[0012] Compared with the prior art, this utility model provides a flotation tank for furnace core molding slurry, which has the following beneficial effects: 1. The flow divider holes of the diffuser cap can refine the bubbles, and the four-sided pyramid structure of the flow guide cover expands the bubble diffusion space, significantly increasing the contact area between the bubbles and the solid particles of the slurry.

[0013] 2. The 45-degree angled guide plate guides the bubbles by converging them and extending their trajectory, further increasing the probability of contact between the bubbles and particles.

[0014] 3. Symmetrically distributed aeration heads can form an upward symmetrical convection flow field, which can solve the problem of water flow deflection caused by unilateral aeration and prevent solid particles in the slurry from being washed to the bottom of the pool by turbulent flow or accumulating locally.

[0015] 4. The stable planar outer wall of the four-sided pyramid can withstand high pressure and high impact, reducing the risk of deformation. The directional flow of the edges avoids fluid deviation and simultaneously expands the bubble diffusion space, ensuring that the bubbles uniformly cover the slurry area. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the furnace core molding slurry flotation tank of this utility model; Figure 2 This is a top view schematic diagram of the flotation tank for furnace core molding slurry of this utility model; Figure 3 This is a side cross-sectional view of the flotation tank for the core molding slurry of this utility model. Figure 4 This is a schematic diagram of the flow guiding structure of this utility model.

[0017] In the diagram: 1. Flotation tank; 2. Exhaust pipe; 3. Conveying pipe; 4. Aerator; 5. Guide plate; 6. Aeration head; 7. Diffusion cap; 8. Diversion hole; 9. Flow guide hood; 10. Fixing frame; 11. Feed inlet. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1 - Figure 3This embodiment of a furnace core molding slurry flotation tank includes a flotation tank 1. Four exhaust pipes 2 are provided on the lower surface of the flotation tank 1. An aerator 4 is fixedly connected to the lower surface of the flotation tank 1. A conveying pipe 3 is fixedly connected to the output end of the aerator 4. The two ends of the conveying pipe 3 are connected to the four exhaust pipes 2. The gas generated by the aerator 4 is first transported centrally through the conveying pipe 3, and then discharged synchronously through the four exhaust pipes 2 at both ends, which can cover a larger tank area. Since the aerator 4 is an existing device, the aerator 4 is electrically connected to an external cable.

[0020] Please see Figure 2 - Figure 4 Four exhaust pipes 2 are connected to four aeration heads 6 at one end. The four aeration heads 6 are located inside the flotation tank 1. The four aeration heads 6 are symmetrically designed. When the aeration heads 6 release bubbles, they will drive the surrounding water to form a symmetrical upward convection flow field. This avoids the water flow from being biased to one side due to the dense aeration heads 6 on one side, and prevents particles from being washed to the bottom of the tank by turbulent flow or accumulating in a certain area. Four diffuser caps 7 are provided on the upper surface of the four aeration heads 6. Multiple diversion holes 8 are provided on the four diffuser caps 7. Four fixing frames 10 are fixedly connected to the upper surface of the four diffuser caps 7. Four flow guides 9 are fixedly connected to the upper surface of the four fixing frames 10. The cross-section of the four fixing frames 10 is smaller than the cross-section of the upper surface of the diffuser caps 7, which can minimize the interference with the bubbles sprayed out of the diffuser caps 7 and will not affect the movement path of the bubbles.

[0021] The four guide hoods 9 are designed in the shape of a four-sided pyramid. The height of the guide hoods 9 will not affect the operation of the furnace core forming device. The guide hoods 9 are completely submerged in water. The opening direction of the guide hoods 9 gradually increases. After the bubbles are released from the aeration head 6, they will move along the outer wall of the guide hoods 9 from the narrow part to the wide part. The diffusion space increases synchronously with the opening. The four-sided pyramid design has a stable outer wall structure that can withstand high pressure and high impact with low deformation risk. The edges of the four-sided pyramid have a directional guiding effect, and the fluid is not easy to deviate. The inner surface of the flotation tank 1 is provided with four guide plates 5. The four guide plates 5 are designed at a 45-degree angle. The opening direction of the guide plates 5 decreases from large to small. This can further gather and guide the bubbles and water flow diffused by the guide hoods 9, and increase the movement trajectory of the bubbles. The upper surface of the flotation tank 1 is provided with a feed inlet 11. The feed inlet 11 is designed to be open, and sufficient raw materials are added through the feed inlet 11.

[0022] Since the installation of the material injection pipe and the corresponding connection method in the flotation tank 1 are all well-known technologies in the field, they are not described in detail in this embodiment.

[0023] The working principle of the above embodiment is as follows: the furnace core forming slurry to be processed is injected into the tank body through the open feed port 11 on the upper surface of the flotation tank 1 to ensure that the slurry is evenly filled in the working area of ​​the flotation tank 1.

[0024] The aerator 4, fixed on the lower surface of the flotation tank 1, is started. The high-pressure gas generated by the aerator 4 first enters the delivery pipe 3. The delivery pipe 3 distributes the gas evenly to the four exhaust pipes 2 through the connecting structure at both ends, realizing centralized delivery and synchronous discharge of gas, covering a larger area of ​​the flotation tank 1, and avoiding local gas supply shortage.

[0025] The gas in the exhaust pipe 2 is eventually released through the four aeration heads 6 located inside the flotation tank 1. Since the aeration heads 6 are symmetrically distributed, the released bubbles will drive the surrounding water to form a symmetrical upward convection flow field, avoiding the water flow deviation problem caused by the dense aeration heads 6 on one side, and preventing solid particles in the slurry from being washed to a certain area at the bottom of the tank by turbulent flow and accumulating. The diffuser cap 7 on the upper surface of the aeration head 6 further refines and evenly diffuses the bubbles through its multiple diversion holes 8. The guide hood 9, supported by the fixing frame 10 above the diffuser cap 7, allows the bubbles to move from the narrow part to the wide part along the outer wall of the guide hood 9. The stable planar outer wall of the four-sided pyramid can withstand high pressure and high impact, reduce the risk of deformation, and prevent fluid deviation through the directional flow of the edges. At the same time, it expands the bubble diffusion space and ensures that the bubbles evenly cover the slurry area.

[0026] The four guide plates 5 on the inner surface of the flotation tank 1 are designed at a 45-degree angle, with the opening direction decreasing from large to small. This further gathers and directs the bubbles and water flow after they are diffused by the guide hood 9. Through the optimized design of the angle and opening, the movement trajectory of the bubbles is extended, the contact probability between the bubbles and solid particles in the slurry is increased, and the flotation separation efficiency is improved.

[0027] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flotation tank for furnace core molding slurry, characterized in that: The system includes an air flotation tank (1), on the lower surface of which four exhaust pipes (2) are provided, one end of which is connected to four aeration heads (6), on the upper surface of which four aeration heads (6) are provided four diffusion caps (7), on which multiple diversion holes (8) are provided, on the upper surface of which four diffusion caps (7) are fixedly connected four fixing frames (10), on the upper surface of which four fixing frames (10) are fixedly connected four flow guides (9), and on the inner surface of which four guide plates (5) are provided.

2. The flotation tank for furnace core molding slurry according to claim 1, characterized in that: An aerator (4) is fixedly connected to the lower surface of the flotation tank (1), and a conveying pipe (3) is fixedly connected to the output end of the aerator (4).

3. The flotation tank for furnace core molding slurry according to claim 2, characterized in that: The two ends of the delivery pipe (3) are connected to four exhaust pipes (2).

4. The flotation tank for furnace core molding slurry according to claim 1, characterized in that: The four aeration heads (6) are located inside the flotation tank (1), and the four aeration heads (6) are symmetrically designed.

5. The flotation tank for furnace core molding slurry according to claim 1, characterized in that: The upper surface of the flotation tank (1) is provided with a feed inlet (11), which is an open design.

6. The flotation tank for furnace core molding slurry according to claim 1, characterized in that: The four air deflectors (9) are rectangular in design, and the openings of the air deflectors (9) gradually increase in size.

7. The flotation tank for furnace core molding slurry according to claim 1, characterized in that: The four guide plates (5) are designed at a 45-degree angle, and the opening direction of the guide plates (5) decreases from large to small.

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