Ventilation type stirring structure

Abstract

The utility model discloses a ventilation type stirring structure. The stirring structure comprises a rotating shaft, a bracket fixed in a reaction kettle, a stirring paddle fixedly connected with the rotating shaft, a sleeve fixed on the bracket, an air inlet pipe communicated with the sleeve, and an exhaust port formed in the stirring paddle, the rotating shaft is hollow and penetrates through the sleeve; the air inlet pipe supplies air to the rotating shaft; gas in the rotating shaft is exhausted from the exhaust port; the full reaction of the slurry and the gas is realized, and the reaction efficiency is improved; and the hollow rotating shaft is designed, and air is supplied into the rotating shaft through the air inlet hole, so that the air can be discharged from the air outlet, and mixing of the slurry and the air is promoted.

Description

Technical Field

[0001] The utility model relates to a ventilation type stirring structure, belonging to the chemical industry field. Background Technique

[0002] In industries such as chemical industry, pharmaceutical industry, and food industry, the stirring structure is an essential component in the reaction kettle, which is used to achieve efficient mixing and uniform dispersion of materials. Most traditional stirring structures adopt a single stirring paddle design. Although they can achieve the basic stirring function, under certain special process conditions, such as when ventilation stirring is required, the traditional stirring structure often fails to meet the requirements.

[0003] Therefore, developing a ventilation type stirring structure is of great significance for improving the stirring efficiency of the reaction kettle and promoting the chemical reaction process. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a ventilation type stirring structure to solve the problems.

[0005] To achieve the above purpose, the utility model is realized through the following technical solutions: a ventilation type stirring structure, including a reaction kettle, a feed hopper, a discharge valve, and a stirring structure; the stirring structure acts inside the reaction kettle; the slurry enters the reaction kettle through the feed hopper and is discharged from the discharge valve; the stirring structure includes a rotating shaft, a bracket fixed inside the reaction kettle, a stirring paddle fixedly connected to the rotating shaft, a sleeve fixed on the bracket, an air inlet pipe communicating with the sleeve, and an exhaust port provided on the stirring paddle; the rotating shaft is hollow and penetrates through the sleeve; the air inlet pipe supplies air to the rotating shaft; the gas inside the rotating shaft is discharged from the exhaust port.

[0006] Preferably, a bearing is provided between the sleeve and the rotating shaft.

[0007] Preferably, the rotating shaft is driven by a motor to rotate the rotating shaft.

[0008] Preferably, there are several air inlet holes on the rotating shaft, and the air inlet holes are located inside the sleeve.

[0009] Preferably, a visible observation window is provided on one side of the reaction kettle.

[0010] Preferably, the feed hopper is arranged on the upper side of the reaction kettle, so that the slurry enters the reaction kettle from top to bottom.

[0011] Preferably, the stirring paddle is located at the bottom side of the reaction kettle, so that the exhaust port is also at the bottom side of the reaction kettle.

[0012] Advantageous Effects

[0013] The utility model realizes the full reaction of the slurry and the gas, improving the reaction efficiency; and a hollow rotating shaft is designed, and gas is supplied into the rotating shaft through the air inlet hole, so that the gas can be discharged from the exhaust port, promoting the mixing of the slurry and the gas.

[0014] By arranging the feed hopper on the upper side of the reaction kettle, the slurry enters from top to bottom. Combining with the design that the stirring paddle is located at the bottom side of the reaction kettle, the gas moves from bottom to top, making it easier to contact the slurry and realizing full reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] By reading the following detailed description of the non-restrictive embodiments with reference to the accompanying drawings, other features, objects and advantages of the present utility model will become more obvious:

[0016] Figure 1 It is a schematic structural diagram of a ventilation type stirring structure of the present utility model;

[0017] Figure 2 It is a schematic structural diagram of the present utility model working;

[0018] Figure 3 It is a top view structural diagram of the bracket of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] 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.

[0020] Please refer to Figures 1 - 3 , the present utility model provides a technical solution for a ventilation type stirring structure: including a reaction kettle 1, a feed hopper 2, a discharge valve 3, and a stirring structure 4; the stirring structure 4 acts on the inside of the reaction kettle 1; the slurry enters the reaction kettle 1 through the feed hopper 2 and is discharged from the discharge valve 3;

[0021] The stirring structure 4 includes a rotating shaft 41, a bracket 42 fixed inside the reaction kettle 1, a stirring paddle 45 fixedly connected to the rotating shaft 41, a sleeve 43 fixed on the bracket 42, an air inlet pipe 44 communicating with the sleeve 43, and an exhaust port 46 provided on the stirring paddle 45; the rotating shaft 41 is hollow and penetrates through the sleeve 43; the air inlet pipe 44 supplies gas to the rotating shaft 41; the gas in the rotating shaft 41 is discharged from the exhaust port 46. In one of the embodiments, the device can be applied to the use in step 1 of a method for recovering ferric phosphate from crude ferric phosphate slag disclosed in CN118047360A of the present application.

[0022] Furthermore, the rotating shaft 41 is driven by a motor, so that the rotating shaft 41 can rotate; specifically, it is driven by the driving shaft 48 of the motor fixedly connected to the rotating shaft 41.

[0023] To stabilize the rotation of the rotating shaft 41, a bearing 410 is provided between the sleeve 43 and the rotating shaft 41; further, an existing sealing ring (not shown in the figure) can be provided on the sleeve 43 to make the sleeve 43 relatively sealed and reduce the leakage of gas.

[0024] To solve the connectivity between the intake pipe 44 and the rotating shaft 41, a number of intake holes 49 are provided on the rotating shaft 41, and the intake holes 49 are located inside the sleeve 43; in this way, after the gas in the intake pipe 44 is injected into the sleeve 43, it then flows from the sleeve 43 into the rotating shaft 41.

[0025] To facilitate workers to observe the reaction situation, a visible observation window 5 is provided on one side of the reaction kettle 1.

[0026] In one embodiment, the stirring paddle 45 is designed in a "U" shape, so that the stirring paddle 45 has a certain height and can fully stir the accumulated slurry.

[0027] The bracket 42 is designed as a fence to avoid blocking the inflow of the slurry in the feed hopper 2 above.

[0028] To improve the reaction efficiency: First, the feed hopper 2 is arranged on the upper side of the reaction kettle 1, so that the slurry enters the reaction kettle 1 from top to bottom; in this way, the gradually fed slurry can fully react with the gas under the rotation of the stirring paddle 45; Second, the stirring paddle 45 is located at the bottom side of the reaction kettle 1, so that the exhaust port 46 is also at the bottom side of the reaction kettle 1; in this way, the gas exits from the bottom side and moves from bottom to top, and thus it is easier to contact the slurry under the rotation of the stirring paddle 45 and fully react.

[0029] Working principle: The slurry to be reacted is gradually added from the feed hopper 2, so that the slurry enters the reaction kettle 1 from top to bottom. During this period, the intake pipe 44 injects the reducing gas into the sleeve 43, and the gas in the sleeve 43 then flows into the rotating shaft 41, and the gas is guided by the hollow rotating shaft 41 to the exhaust port 46; under the action of the driving motor, the stirring paddle 45 rotates to stir the material, so as to fully react with the gas.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0031] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An aeration stirring structure, comprising a reaction kettle, a feed hopper, a discharge valve, and a stirring structure; the stirring structure acts inside the reaction kettle; the slurry enters the reaction kettle through the feed hopper and is discharged from the discharge valve; characterized in that: The stirring structure includes a rotating shaft, a bracket fixed inside the reaction kettle, a stirring paddle fixedly connected to the rotating shaft, a sleeve fixed on the bracket, an air inlet pipe communicating with the sleeve, and an exhaust port provided on the stirring paddle; the rotating shaft is hollow and penetrates through the sleeve; the air inlet pipe supplies air to the rotating shaft; the gas in the rotating shaft is discharged from the exhaust port; there are a number of air inlet holes on the rotating shaft, and the air inlet holes are located inside the sleeve.

2. The aeration stirring structure according to claim 1, characterized in that: A bearing is provided between the sleeve and the rotating shaft.

3. The aeration stirring structure according to claim 1, characterized in that: The rotating shaft is driven by a motor to enable the rotating shaft to rotate.

4. A ventilation type stirring structure according to claim 1, characterized in that: A visible observation window is provided on one side of the reaction kettle.

5. The aeration stirring structure according to claim 1, characterized in that: The feed hopper is arranged on the upper side of the reaction kettle, so that the slurry enters the reaction kettle from top to bottom.

6. The aeration stirring structure according to claim 1, characterized in that: The stirring paddle is located at the bottom side of the reaction kettle, so that the exhaust port is also at the bottom side of the reaction kettle.

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