A stirring device

Abstract

The utility model discloses a kind of stirring devices, including shell, including cavity. Connecting rod extends along vertical direction and upper end extends out of shell, first passage with upper end opening is connected, connecting rod rotates along its own axis under the drive of rotary drive member. Stirring assembly, with connecting rod fixed connection, stirring assembly has second passage with first passage conduction, stirring assembly includes the air outlet section consistent with the bottom arc of cavity, the minimum distance of air outlet section and cavity bottom is less than 3cm, through hole for conducting second passage and cavity is opened on air outlet section, the axis of through hole and the bottom of cavity is perpendicular. Gas supply assembly is arranged at opening, and gas supply assembly is used to pass the gas of gas source into first passage. Stirring device realizes ventilation stirring, satisfies stirring demand.

Description

Technical Field

[0001] This utility model relates to a stirring device. Background Technology

[0002] Mechanically stirred reactors are widely used in industries such as chemical reactions, pharmaceuticals, pesticides, dyes, food, metallurgy, and wastewater treatment. The stirring component is a key part, utilizing its rotation to achieve uniform mixing. To achieve some gas-liquid and gas-solid-liquid reactions, a gas distributor is typically installed inside the stirred reactor. This not only increases the number of internal components but also the reactor's interfaces. Therefore, a venting agitator was designed to perform both stirring and venting functions. However, existing venting agitators have limited functionality and cannot meet all stirring requirements. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a stirring device that enables aeration and stirring, thereby meeting the stirring requirements.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a stirring device, comprising: The housing, including the cavity; A connecting rod extends vertically and its upper end extends out of the housing. The connecting rod has a first channel with an opening at its upper end. The connecting rod rotates along its own axis under the drive of a rotary drive component. A stirring assembly is fixedly connected to the connecting rod. The stirring assembly has a second channel that communicates with the first channel. The stirring assembly includes an air outlet section that has the same curvature as the bottom of the cavity. The minimum distance between the air outlet section and the bottom of the cavity is less than 3 cm. A through hole is provided on the air outlet section to communicate with the second channel and the cavity. The axis of the through hole is perpendicular to the bottom of the cavity. An air supply assembly is provided at the opening, and the air supply assembly is used to introduce gas from an air source into the first channel.

[0005] A first channel is created on the connecting rod, and a second channel, communicating with the first channel, is created on the stirring assembly. External gas enters through the opening, passes through the first and second channels, and exits through the through-hole. At this point, the stirring assembly can ventilate as needed while stirring, eliminating the need for an additional gas distribution structure and achieving aeration and stirring. Simultaneously, the gas outlet section is positioned near the bottom of the cavity, and the axis of the through-hole is perpendicular to the bottom of the cavity. This allows the stirring assembly to agitate and lift any deposited material at the bottom of the cavity, preventing uneven stirring caused by material settling at the bottom.

[0006] Furthermore, the stirring assembly also includes connecting sections located at both ends of the air outlet section and fixedly connected to the connecting rods. The connecting sections securely connect the two ends of the air outlet section to the connecting rods, ensuring the strength of the air outlet section, while also allowing for material stirring. Furthermore, the through holes are arranged in two rows along the axis of the second channel in the air outlet section, and the two rows of through holes are staggered. At this time, one row of through holes can compensate for the gap between the other row of through holes, increase the coverage area of ​​the through holes, and allow most of the deposits at the bottom of the cavity to be blown away when the through holes are vented. Furthermore, multiple sets of the stirring components are evenly arranged along the circumference of the connecting rod to improve the stirring efficiency.

[0007] Furthermore, the air supply assembly includes a fixed part and a rotating part rotatably connected. The rotating part is fixedly connected to the connecting rod, and an annular vent groove is formed between the fixed part and the rotating part. The fixed part and the rotating part are respectively provided with an air inlet channel and an air outlet channel communicating with the annular vent groove. The air inlet channel is connected to the air source. The air supply assembly enables rotational air supply, ensuring that it is directly connected to an external air source, which remains stationary, while also meeting the rotational requirements of the connecting rod. Furthermore, a bearing and seals located on both sides of the annular vent groove are provided between the fixed part and the rotating part. The bearing enables the rotational connection between the fixed part and the rotating part, and the seals effectively prevent gas leakage between the fixed part and the rotating part.

[0008] Furthermore, a support frame fixed to the housing is also provided inside the cavity. The support frame is located in the middle region of the cavity in the height direction, and is rotatably connected to the connecting rod. The support frame prevents the connecting rod from wobbling during rotation and also prevents the connecting rod from deforming.

[0009] Furthermore, the connecting rod comprises a first section, a second section, and a third section distributed axially from top to bottom. The wall thickness of the first section and the third section is greater than that of the second section. The first section and the third section will bear greater forces than the second section; therefore, the wall thickness of the first section and the third section is increased relative to the second section to meet usage requirements and increase the strength of the connecting rod. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the stirring assembly in an embodiment of the present invention; Figure 3 This is a schematic diagram of the through hole in an embodiment of the present invention; Figure 4This is a schematic diagram of the gas supply component in an embodiment of the present invention.

[0011] In the picture: 1. Shell; 11. Cavity; 2. Connecting rod; 21. First section; 22. Second section; 23. Third section; 2a. First channel; 3. Stirring assembly; 31. Air outlet section; 311. Through hole; 32. Connecting section; 3a. Second channel; 4. Air supply assembly; 41. Fixing part; 411. Air inlet channel; 42. Rotating part; 421. Air outlet channel; 43. Annular vent groove; 44. Bearing; 45. Seal; 5. Rotary drive components; 6. Support frame. Detailed Implementation The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0012] For ease of subsequent description, the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0013] This utility model discloses a stirring device for stirring.

[0014] See appendix Figure 1 and attached Figure 2 As shown, the stirring device includes a housing 1, a connecting rod 2, and a stirring assembly 3. The housing 1 includes a cavity 11. The connecting rod 2 is fixedly connected to the stirring assembly 3. The connecting rod 2 drives the stirring assembly 3 to rotate, thereby stirring the product in the cavity 11.

[0015] The connecting rod 2 extends vertically and its upper end extends out of the housing 1. The connecting rod has a first channel 2a with an opening at its upper end. The connecting rod 2 rotates along its own axis under the drive of the rotary drive 5. The stirring assembly 3 is fixedly connected to the connecting rod 2. The stirring assembly 3 has a second channel 3a that communicates with the first channel 2a. The stirring assembly 3 includes an air outlet section 31 with the same curvature as the bottom of the cavity 11. The minimum distance between the air outlet section 31 and the bottom of the cavity 11 is less than 3cm. The air outlet section 31 has a through hole 311 that communicates with the second channel 3a and the cavity 11. The axis of the through hole 311 is perpendicular to the bottom of the cavity 11.

[0016] In this embodiment, a first channel 2a is formed on the connecting rod 2, and a second channel 3a connected to the first channel 2a is formed on the stirring assembly 3. External gas enters through the opening, passes through the first channel 2a and the second channel 3a, and is ejected from the through hole 311. At this time, the stirring assembly 3 can ventilate as needed while stirring, without the need for an additional gas distribution structure, thus achieving aeration and stirring. Meanwhile, the air outlet section 31 is located close to the bottom of the cavity 11, and the axis of the through hole 311 is perpendicular to the bottom of the cavity 11. At this time, while stirring, the stirring assembly 3 can lift the deposited material at the bottom of the cavity 11, avoiding the problem of uneven stirring caused by the material depositing at the bottom of the cavity 11.

[0017] Because the connecting rod 2 of the stirring device in this embodiment can supply air while rotating, the stirring device also includes an air supply component 4 set at the opening. The air supply component 4 is used to introduce gas from the gas source into the first channel 2a. The air supply component 4 realizes rotational air supply, which means that it can directly connect to the external gas source and keep the gas source stationary, and can meet the rotation requirements of the connecting rod 2.

[0018] See appendix Figure 4 As shown, the air supply assembly 4 includes a fixed part 41 and a rotating part 42 that are rotatably connected. The rotating part 42 is fixedly connected to the connecting rod 2. The fixed part 41 is connected to an external air source through an air pipe. An annular ventilation groove 43 is formed between the fixed part 41 and the rotating part 42. The fixed part 41 and the rotating part 42 are respectively provided with an air inlet channel 411 and an air outlet channel 421 that communicate with the annular ventilation groove 43. The air inlet channel 411 is connected to the air source. Gas from the gas source can enter the first channel 2a through the gas pipe, the inlet channel 411, the annular vent 43, and the outlet channel 421. The gas is then transported to the stirring assembly 3 through the first channel 2a and ejected from the through hole 311, supplying gas during stirring. The fixed part 41 is rotatably connected to the rotating part 42. When the rotating part 42 rotates with the connecting rod 2, the fixed part 41 remains relatively stationary. The gas supply assembly 4 enables rotational gas delivery to the connecting rod 2, preventing interference with the gas pipe when the connecting rod 2 rotates.

[0019] A bearing 44 is provided between the fixed part 41 and the rotating part 42, and the bearing 44 is used to realize the rotational connection between the fixed part 41 and the rotating part 42. The fixed part 41 also includes an annular boss extending downward along its lower end surface. The upper end portion of the rotating part 42 is embedded in the annular boss. The bearing 44 is disposed between the annular boss and the rotating part 42, and the fixed part 41 is pressed against the rotating part 42 by the bearing 44.

[0020] To prevent gas leakage between the fixed part 41 and the rotating part 42, a sealing element 45 is provided on both sides of the annular vent groove 43 between the fixed part 41 and the rotating part 42. The sealing element 45 can be an O-ring or a Y-ring. When the fixed part 41 and the rotating part 42 are assembled, the sealing element 45 is squeezed to deform it, thereby producing a sealing effect.

[0021] Participate in the attached Figure 2 As shown, the stirring assembly 3 also includes a connecting section 32, which is located at both ends of the air outlet section 31 and is fixedly connected to the connecting rod 2. The connecting section 32 fixes both ends of the air outlet section 31 to the connecting rod 2, ensuring the strength of the air outlet section 31. At the same time, the connecting end can also stir the material. At this time, the stirring assembly 3 forms an opening structure, and the second channel 3a is opened on the connecting section 32 and the air outlet section 31.

[0022] See appendix Figure 3 As shown, two rows of through holes 311 are arranged along the axis of the second channel 3a in the air outlet section 31, and the two rows of through holes 311 are staggered. At this time, one row of through holes 311 can compensate for the gap between the other row of through holes 311, increase the coverage area of ​​the through holes 311, and allow most of the deposits at the bottom of the cavity 11 to be blown away when the through holes 311 are vented. Multiple sets of stirring components 3 are evenly arranged around the connecting rod 2. For example, four sets of stirring components 3 are provided to improve stirring efficiency and make the force on the connecting rod 2 more uniform.

[0023] In one embodiment, because the connecting rod 2 is relatively long and has a hollow structure with low rigidity, a support frame 6 fixed to the housing 1 is also provided inside the cavity 11. The support frame 6 is located in the middle region of the cavity 11 in the height direction, and the support frame 6 is rotatably connected to the connecting rod 2. In this embodiment, the support frame 6 is added to support the connecting rod 2. A bushing is fixed on the support frame 6, which enables the rotatable connection between the connecting rod 2 and the support frame 6. The support frame 6 prevents the connecting rod 2 from shaking during rotation and also prevents the connecting rod 2 from deforming.

[0024] The connecting rod 2 includes a first section 21, a second section 22, and a third section 23 distributed axially from top to bottom. The wall thickness of the first section 21 and the third section 23 is greater than that of the second section 22. The first section 21 is connected to the rotary drive component 5 and will bear a large force. The third section 23 is connected to the stirring assembly 3 and will also bear a relatively large force compared to the second section 22. Therefore, the wall thickness of the first section 21 and the third section 23 is increased relative to the second section 22 to meet the usage requirements and increase the strength of the connecting rod 2.

[0025] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A stirring device, characterized in that: include: The housing, including the cavity; A connecting rod extends vertically and its upper end extends out of the housing. The connecting rod has a first channel with an opening at its upper end. The connecting rod rotates along its own axis under the drive of a rotary drive component. A stirring assembly is fixedly connected to the connecting rod. The stirring assembly has a second channel that communicates with the first channel. The stirring assembly includes an air outlet section that has the same curvature as the bottom of the cavity. The minimum distance between the air outlet section and the bottom of the cavity is less than 3 cm. A through hole is provided on the air outlet section to communicate with the second channel and the cavity. The axis of the through hole is perpendicular to the bottom of the cavity. An air supply assembly is provided at the opening, and the air supply assembly is used to introduce gas from an air source into the first channel.

2. The stirring device according to claim 1, characterized in that: The stirring assembly also includes connecting sections, which are located at both ends of the air outlet section and are fixedly connected to the connecting rod.

3. The stirring device according to claim 1, characterized in that: The through holes are arranged in two rows along the axis of the second channel in the air outlet section, and the two rows of through holes are staggered.

4. The stirring device according to claim 1, characterized in that: Multiple sets of stirring components are evenly arranged along the circumference of the connecting rod.

5. The stirring apparatus according to any one of claims 1-4, characterized in that: The air supply assembly includes a fixed part and a rotating part that are rotatably connected. The rotating part is fixedly connected to the connecting rod. An annular ventilation groove is formed between the fixed part and the rotating part. The fixed part and the rotating part are respectively provided with an air inlet channel and an air outlet channel that communicate with the annular ventilation groove. The air inlet channel is connected to the air source.

6. The stirring device according to claim 5, characterized in that: A bearing and seals located on both sides of the annular vent groove are provided between the fixed part and the rotating part.

7. The stirring device according to claim 1, characterized in that: The cavity is also provided with a support frame that is fixed to the housing. The support frame is located in the middle region of the cavity in the height direction, and the support frame is rotatably connected to the connecting rod.

8. The stirring device according to claim 1, characterized in that: The connecting rod includes a first section, a second section, and a third section distributed axially from top to bottom, wherein the wall thickness of the first section and the third section is greater than the wall thickness of the second section.

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