Self-suction stirrer in reaction kettle

Abstract

The utility model discloses a self-suction stirrer in a reaction kettle, which comprises a rod body and an exhaust device, the rod body comprises a hollow section and a solid section, the bottom end of the hollow section is connected with the top end of the solid section, the top end of the hollow section is provided with a plurality of air inlets, and the bottom end of the solid section is provided with a stirring structure; the exhaust device comprises a mounting base and a plurality of exhaust blades, the mounting base is arranged at the bottom end of the hollow section, a plurality of mounting structures are arranged on the mounting base in the circumferential direction, the exhaust blades are connected to the mounting structures and provided with exhaust ports, the exhaust ports communicate with the hollow section, and gas channels are formed in the exhaust blades and the mounting base; and negative pressure is formed at the exhaust port, so that gas is pumped from the gas inlet to the exhaust port to be exhausted. According to the technical scheme, the inside of the stirrer can be conveniently cleaned, residual solute is prevented from polluting subsequent reaction, collision and rubbing can be reduced in the stirrer mounting and transporting process, and the stirrer is safe.

Description

Technical Field

[0001] The utility model relates to the technical field of stirrers, in particular to a self-priming stirrer in a reaction kettle. Background Art

[0002] A reactor is a device used for chemical reactions, usually made of metal or glass. It is widely used in the fields of chemistry, pharmaceuticals, food processing, coatings, chemicals, etc. Some common gas-liquid reactions in industry also need to be carried out in reactors, such as using air to oxidize isopropylbenzene to produce isopropylbenzene hydroperoxide. In this case, a self-priming agitator needs to be installed in the reactor.

[0003] A self-priming agitator refers to a gas-liquid contact device that does not require additional gas delivery, but only generates negative pressure by rotating the agitator itself in the liquid to absorb the gas outside the liquid surface. It is usually composed of a hollow shaft and multiple hollow blades. Its specific working principle is that the agitator rotates at a certain speed to displace the liquid near the hollow blades and cause the liquid to move violently, thereby forming a low pressure at the center of the agitator. Under the driving force of the pressure difference, the gas in the upper space of the liquid is sucked in through the hollow shaft and then discharged from the hollow blades, so that the gas and liquid are fully in contact, thereby promoting the gas-liquid reaction. However, the current self-priming agitators still have the following problems:

[0004] The hollow blades and the hollow shaft are basically formed in one piece, and when the agitator stops rotating, the liquid will enter the hollow blades and the hollow shaft, which are difficult to clean, and the residual solute may cause contamination to subsequent reactions;

[0005] During the installation and transportation of the agitator, the hollow blades always protrude from the hollow shaft. Their sharp edges can easily collide or scratch other equipment, and may also cause harm to workers, which is quite dangerous. Utility Model Content

[0006] The main purpose of the utility model is to provide a self-priming agitator in a reaction kettle, which can facilitate the cleaning of the inside of the agitator to prevent residual solutes from contaminating subsequent reactions, and can reduce collisions and scratches during the installation and transportation of the agitator, making it safer.

[0007] In order to achieve the above-mentioned purpose, the utility model provides a self-priming agitator in a reaction kettle, comprising:

[0008] A rod body, the rod body comprising a hollow section and a solid section, the bottom end of the hollow section is connected to the top end of the solid section, a plurality of air inlets are provided at the top end of the hollow section, and a stirring structure is provided at the bottom end of the solid section;

[0009] An exhaust device, the exhaust device includes a mounting seat and a plurality of exhaust blades, the mounting seat is arranged at the bottom end of the hollow section, a plurality of mounting structures are circumferentially arranged on the mounting seat, the exhaust blade is connected to the mounting structure, the exhaust blade has an exhaust port, the exhaust port is communicated with the hollow section, and a gas channel is formed inside the exhaust blade and the mounting seat, when the rod body rotates, a negative pressure is formed at the exhaust port so that the gas is drawn from the air inlet to the exhaust port for discharge.

[0010] In one embodiment of the utility model, a plurality of mounting grooves are circumferentially arranged on the outer edge of the mounting seat, the mounting structure is arranged in the mounting groove and partially protrudes into the mounting groove, the exhaust blade has an insertion portion, a snap-in groove is arranged on the insertion portion, and when the insertion portion is inserted into the mounting groove, the snap-in groove abuts against the mounting structure.

[0011] In one embodiment of the present invention, the mounting structure comprises:

[0012] An abutment member, wherein a movable hole is provided on a side wall of the installation slot, the abutment member is movably arranged in the movable hole, and a ball head is provided at one end of the abutment member facing the installation slot;

[0013] A spring is arranged in the movable hole and abuts against the abutment member so that the ball head protrudes into the installation groove.

[0014] In an embodiment of the utility model, the insertion portion is provided with a first air port, the mounting groove is provided with a second air port corresponding to the first air port, the first air port is circumferentially provided with a protrusion, and the protrusion is attached to the edge of the second air port.

[0015] In one embodiment of the present invention, the top end of the hollow section is detachably connected to an air inlet head, and the plurality of air inlets are all arranged on the surface of the air inlet head.

[0016] In one embodiment of the present invention, the stirring structure includes a stirring head, the stirring head is connected to the bottom end of the solid section, and a plurality of stirring blades are circumferentially arranged on the stirring head.

[0017] The technical solution of the utility model realizes a detachable design through an installation structure between the exhaust blade and the mounting seat, which can facilitate the cleaning of the gas channel inside the exhaust blade and prevent liquid residue. The air inlet head and the rod body are also detachably connected, which facilitates the irrigation of the hollow section of the rod body and the gas channel in the mounting seat. In addition, during installation and transportation, the exhaust blade can be removed to prevent its sharp edge from scratching equipment or personnel, and the safety factor is relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a cross-sectional view of the exhaust device of the utility model;

[0021] Figure 3 This is a schematic diagram of the mounting base structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the exhaust blade structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the air intake head structure of the utility model.

[0024] Description of Figure Numbers:

[0025] 1. Rod body; 2. Hollow section; 21. Air inlet; 22. Air inlet head; 3. Solid section; 31. Stirring structure; 32. Stirring head; 33. Stirring blade; 4. Exhaust device; 5. Mounting seat; 51. Mounting structure; 511. Abutment; 512. Ball head; 513. Spring; 52. Mounting groove; 521. Movable hole; 522. Second air port; 6. Exhaust blade; 61. Exhaust port; 62. Insertion part; 621. Snap-in groove; 622. First air port; 623. Raised part; 7. Gas channel.

[0026] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] Reference Figures 1 to 5The utility model proposes a self-priming agitator in a reactor, comprising a rod body 1 and an exhaust device 4, the rod body 1 comprising a hollow section 2 and a solid section 3, the bottom end of the hollow section 2 is connected to the top end of the solid section 3, a plurality of air inlets 21 are provided at the top end of the hollow section 2, and a stirring structure 31 is provided at the bottom end of the solid section 3; the exhaust device 4 comprises a mounting seat 5 and a plurality of exhaust blades 6, the mounting seat 5 is arranged at the bottom end of the hollow section 2, a plurality of mounting structures 51 are circumferentially arranged on the mounting seat 5, the exhaust blade 6 is connected to the mounting structure 51, the exhaust blade 6 has an exhaust port 61, the exhaust port 61 is communicated with the hollow section 2, and a gas channel 7 is formed inside the exhaust blade 6 and the mounting seat 5, when the rod body 1 rotates, a negative pressure is formed at the exhaust port 61 so that the gas is drawn from the air inlet 21 to the exhaust port 61 for discharge.

[0029] It can be understood that the exhaust device 4 is composed of a mounting seat 5 and an exhaust blade 6. The mounting seat 5 is arranged at the connection between the hollow section 2 and the solid section 3. The exhaust blade 6 and the mounting seat 5 have a connected gas channel 7. One end of the gas channel 7 is connected to the cavity inside the hollow section 2, and the other end is connected to the exhaust port 61. The air inlet 21 is arranged at the top of the hollow section 2, and should be kept exposed above the liquid during the stirring process. When the agitator rotates at a certain speed, the liquid near the exhaust blade 6 is discharged and the liquid is forced to move violently, thereby forming a low pressure at the center of the agitator. Under the driving force of the pressure difference, the gas in the upper space of the liquid is sucked in through the air inlet 21, passes through the hollow section 2, and is discharged from the exhaust port 61 of the exhaust blade 6, so that the gas and the liquid are fully in contact, thereby promoting the gas-liquid reaction.

[0030] The mounting structure 51 has a movable raised portion 623, which is connected to the elastic member. The raised portion 623 always remains in a raised state, and there is a corresponding recessed portion on the exhaust blade 6. When the exhaust blade 6 is installed on the mounting seat 5, the raised portion 623 is first pressed until the recessed portion reaches the position of the raised portion 623. The raised portion 623 rebounds to press the exhaust blade 6 tightly to complete the fixation. When the exhaust blade 6 needs to be removed, the exhaust blade 6 can be removed by simply pulling it out with force.

[0031] The exhaust blade 6 and the mounting seat 5 are detachably connected via the mounting structure 51. When the agitator needs to be cleaned, the exhaust blade 6 can be removed and the gas passage 7 inside it can be cleaned to prevent residual solutes in the exhaust blade 6 from contaminating subsequent reactions. In addition, during the installation and transportation of the agitator, the exhaust blade 6 can be removed to prevent its sharp edges from scratching the equipment or staff, thereby providing a high safety factor.

[0032] Reference Figures 2 to 3In one embodiment of the present application, a plurality of mounting grooves 52 are circumferentially arranged on the outer edge of the mounting seat 5, the mounting structure 51 is arranged in the mounting groove 52, and partially protrudes into the mounting groove 52, the exhaust blade 6 has an insertion portion 62, and a snap-fit ​​groove 621 is arranged on the insertion portion 62. When the insertion portion 62 is inserted into the mounting groove 52, the snap-fit ​​groove 621 abuts against the mounting structure 51.

[0033] It can be understood that the mounting groove 52 provides a space for installing the exhaust blade 6, the mounting structure 51 is arranged in the mounting groove 52 and its raised portion 623 is also in the mounting groove 52, and the shape of the insertion portion 62 of the exhaust blade 6 corresponds to the mounting groove 52, so that when the insertion portion 62 is inserted into the mounting groove 52, the two can fit tightly, and the snap-in groove 621 on the insertion portion 62 corresponds to the raised portion 623 of the mounting structure 51. When the exhaust blade 6 is installed in the mounting groove 52, the insertion portion 62 first presses the raised portion 623 until the snap-in groove 621 reaches the position of the raised portion 623, and the raised portion 623 rebounds to press the exhaust blade 6 tightly to complete the fixation.

[0034] Reference Figure 2 In one embodiment of the present application, the mounting structure 51 includes a contact piece 511 and a spring 513. A movable hole 521 is provided on the side wall of the mounting groove 52. The contact piece 511 is movably arranged in the movable hole 521. A ball head 512 is provided at one end of the contact piece 511 facing the mounting groove 52. The spring 513 is arranged in the movable hole 521 and abuts against the contact piece 511 so that the ball head 512 protrudes into the mounting groove 52.

[0035] It can be understood that the abutment 511 and the spring 513 cooperate with each other to form the mounting structure 51, the abutment 511 is arranged in the movable hole 521, and a ball head 512 is arranged at the end of the abutment 511, and the ball head 512 protrudes out of the movable hole 521 under the action of the spring 513. When the exhaust blade 6 is installed in the mounting groove 52, the insertion portion 62 first presses the ball head 512 to compress the spring 513, and the ball head 512 enters the movable hole 521 until the clamping groove 621 reaches the position of the ball head 512, and the spring 513 rebounds to make the ball head 512 press against the clamping groove 621 to fix the exhaust blade 6. When the exhaust blade 6 needs to be removed, it only needs to be pulled outward with force, and the side wall of the clamping groove 621 will press the ball head 512 into the movable hole 521, and the exhaust blade 6 can be pulled out of the mounting groove 52 at this time.

[0036] Reference Figure 4 In one embodiment of the present application, the insertion portion 62 is provided with a first air port 622 , the mounting groove 52 is provided with a second air port 522 corresponding to the first air port 622 , and the first air port 622 is circumferentially provided with a protrusion 623 , which is attached to the edge of the second air port 522 .

[0037] It can be understood that the two air ports are aligned with each other so that the gas channel 7 is connected, and when cleaning the exhaust blade 6 or the hollow section 2, the two air ports can facilitate the flow of water in or out, so that the cleaning is more thorough and the cleaning effect is better; the setting of the raised portion 623 can make the connection between the two air ports tighter and the airtightness is better. Furthermore, the raised portion 623 can be set as a sealing ring made of rubber material, so that the two air ports are connected without any gap, thereby achieving the best airtightness.

[0038] Reference Figure 5 In one embodiment of the present application, the top end of the hollow section 2 is detachably connected to an air inlet head 22 , and a plurality of air inlets 21 are disposed on the surface of the air inlet head 22 .

[0039] It can be understood that the air inlet head 22 and the hollow section 2 are detachably connected, which can facilitate the cleaning of the two. When cleaning is needed, the air inlet head 22 can be removed to flush the air inlet head 22 at multiple angles. It is also convenient to irrigate the hollow section 2 to achieve a better cleaning effect.

[0040] Reference Figure 1 In one embodiment of the present application, the stirring structure 31 includes a stirring head 32 , which is connected to the bottom end of the solid section 3 , and a plurality of stirring blades 33 are circumferentially arranged on the stirring head 32 .

[0041] It can be understood that, through the above arrangement, the stirring effect of the reaction materials can be enhanced while the agitator is pumping air to carry out gas-liquid reaction, so that the reaction rate and reaction effect are improved, which helps to save a certain degree of reaction time.

[0042] The technical solution of the utility model realizes a detachable design by connecting the exhaust blade 6 and the mounting seat 5 through the mounting structure 51, which can facilitate the cleaning of the gas channel 7 inside the exhaust blade 6 to prevent liquid residue. The air inlet head 22 and the rod body 1 are also detachably connected, which is convenient for flushing the hollow section 2 of the rod body 1 and the gas channel 7 in the mounting seat 5. In addition, during the installation and transportation process, the exhaust blade 6 can be disassembled to prevent its sharp edge from scratching the equipment or personnel, and the safety factor is relatively high.

[0043] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0044] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A self-priming agitator in a reactor, characterized in that: include A rod body (1), the rod body (1) comprising a hollow section (2) and a solid section (3), the bottom end of the hollow section (2) being connected to the top end of the solid section (3), the top end of the hollow section (2) being provided with a plurality of air inlets (21), and the bottom end of the solid section (3) being provided with a stirring structure (31); An exhaust device (4) comprises a mounting seat (5) and a plurality of exhaust blades (6); the mounting seat (5) is arranged at the bottom end of the hollow section (2); a plurality of mounting structures (51) are circumferentially arranged on the mounting seat (5); the exhaust blade (6) is connected to the mounting structure (51); the exhaust blade (6) has an exhaust port (61); the exhaust port (61) is connected to the hollow section (2); and a gas channel (7) is formed inside the exhaust blade (6) and the mounting seat (5); when the rod body (1) rotates, a negative pressure is formed at the exhaust port (61) so that gas is drawn from the air inlet (21) to the exhaust port (61) for discharge.

2. The self-priming agitator in the reactor according to claim 1, characterized in that: The outer edge of the mounting seat (5) is circumferentially provided with a plurality of mounting grooves (52); the mounting structure (51) is arranged in the mounting groove (52) and partially protrudes into the mounting groove (52); the exhaust blade (6) has an insertion portion (62); a clamping groove (621) is arranged on the insertion portion (62); when the insertion portion (62) is inserted into the mounting groove (52), the clamping groove (621) abuts against the mounting structure (51).

3. The self-priming agitator in the reactor according to claim 2, characterized in that: The mounting structure (51) comprises: A contact piece (511), a movable hole (521) is provided on a side wall of the installation groove (52), the contact piece (511) is movably arranged in the movable hole (521), and a ball head (512) is provided at one end of the contact piece (511) facing the installation groove (52); A spring (513) is disposed in the movable hole (521) and abuts against the abutment member (511) so that the ball head (512) protrudes into the installation groove (52).

4. The self-priming agitator in the reactor according to claim 2, characterized in that: The insertion portion (62) is provided with a first air port (622), the mounting groove (52) is provided with a second air port (522) corresponding to the first air port (622), the first air port (622) is circumferentially provided with a protrusion (623), and the protrusion (623) is attached to the edge of the second air port (522).

5. The self-priming agitator in the reactor according to claim 1, characterized in that: The top end of the hollow section (2) is detachably connected to an air intake head (22), and the plurality of air intake ports (21) are all arranged on the surface of the air intake head (22).

6. The self-priming agitator in a reactor according to any one of claims 1 to 5, characterized in that: The stirring structure (31) comprises a stirring head (32), the stirring head (32) is connected to the bottom end of the solid section (3), and a plurality of stirring blades (33) are circumferentially arranged on the stirring head (32).

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