Magnetic stirring reaction kettle

Abstract

The present invention discloses a magnetic stirring reaction kettle, and relates to the field of stirring reaction kettles, the magnetic stirring reaction kettle comprises a glass reaction kettle body, the upper and lower end surfaces of the glass reaction kettle body are respectively and correspondingly provided with a liquid inlet and a liquid outlet pipe, and the top end of a fixing frame is provided with a cleaning mechanism for cleaning raw materials attached to the inner wall of the glass reaction kettle body. A stirring assembly is arranged in the glass reaction kettle body, and a magnetic driving mechanism for driving the stirring assembly is arranged below the glass reaction kettle body; through the arrangement of the cleaning mechanism, a first motor drives a wheel frame to take up and pay off a connecting rope, so that a cleaning assembly moves up and down on the inner wall of the reaction kettle, after a connecting pipe is connected with an external water source, the inner wall of the reaction kettle can be directly cleaned in all directions through a plurality of nozzles, and when one inner wall is cleaned, the cleaning efficiency is greatly improved. The relative positions of the connecting shaft and the wheel carrier are locked by matching with the locking piece, so that the wheel carrier is prevented from rotating automatically during cleaning, and the function of automatically cleaning the inner wall of the glass reaction kettle body is realized.

Description

Technical Field

[0001] The invention relates to the field of stirred reactors, in particular to a magnetic stirred reactor. Background Art

[0002] A stirred reactor is a device used in chemical reactions, fermentation, dissolution, mixing and other processes. It usually consists of a reactor body, a stirring device, a heating / cooling system, a control system and other parts. In a magnetic stirred reactor, the stirring device is replaced by magnetic transmission technology, making the entire device more compact, efficient and easy to maintain. Magnetic transmission technology is the core of the magnetic stirred reactor. This technology uses the principle of magnetic coupling to drive the stirring bar (or stirring magnet) inside the reactor to rotate through the magnetic field generated by an external drive device (such as a second motor). Since the magnetic lines of force penetrate the reactor wall, this transmission method does not require mechanical seals, thereby avoiding direct contact between the reaction materials and the transmission components, and effectively preventing material leakage and contamination.

[0003] When the existing magnetic stirring reactor is working, some raw materials are often attached to the inner wall of the reactor. Clean water is added into the reactor and then the force generated by magnetic stirring is used to flush. However, since the flushing force generated by magnetic stirring is limited, this cleaning method is often ineffective for some stubborn raw materials attached to the inner wall of the reactor, and it takes a long time to clean, which is troublesome. Therefore, the present invention proposes a magnetic stirring reactor. Summary of the invention

[0004] The purpose of the present invention is to provide a magnetic stirring reactor to solve the problem that when the existing magnetic stirring reactor mentioned in the above background technology is working, some raw materials often adhere to the inner wall of the reactor. By adding clean water into the reactor and then using the force generated by magnetic stirring to flush it, however, due to the limited flushing force generated by magnetic stirring, this cleaning method often has a poor effect on some stubborn raw materials attached to the inner wall of the reactor, and requires a long time to clean, which is more troublesome.

[0005] In order to achieve the above object, the present invention provides the following technical solutions: A magnetic stirring reactor comprises a glass reactor body, wherein the upper and lower end surfaces of the glass reactor body are respectively provided with a liquid inlet and a liquid outlet pipe, the upper end surface of the glass reactor body is also provided with a first through hole, the outer wall of the glass reactor body is provided with a fixing frame, the top of the fixing frame is provided with a cleaning mechanism for cleaning raw materials attached to the inner wall of the glass reactor body, the interior of the glass reactor body is provided with a stirring assembly, and a magnetic driving mechanism for driving the stirring assembly is provided below the glass reactor body.

[0006] Optionally, the cleaning mechanism includes a fixed plate, a mounting plate, a wheel frame, a connecting shaft, a locking piece, a connecting rope, a support frame and a rotating wheel, the fixed plate is fixedly mounted on the top of the fixed frame, mounting plates are symmetrically provided on both sides of the upper end surface of the fixed plate, wheel frames are rotatably mounted on the mounting plates on both sides, the connecting rope is wrapped around the outside of the wheel frame, connecting shafts are fixedly connected between the opposite sides of the wheel frames on both sides, a locking piece is provided in the middle of the connecting shaft, the support frame is symmetrically arranged on the front side of the wheel frame with respect to the fixed plate, and rotating wheels are rotatably connected to the tops of the support frames on both sides.

[0007] Optionally, the cleaning mechanism further comprises a cleaning assembly, and one end of the connecting ropes on both sides away from the wheel frame passes through the rotating wheel and is fixedly connected to the cleaning assembly.

[0008] Optionally, the cleaning assembly includes an annular tube, a connecting tube and a nozzle, the annular tube is slidably arranged on the inner wall of the glass reactor body, and the upper end surface of the annular tube is fixedly connected to the connecting rope, one end of the connecting tube is slidably inserted and connected to the first through hole opened at the top of the glass reactor body, and the other end of the connecting tube is fixedly connected to the annular tube, and a plurality of the nozzles are equidistantly fixedly installed on the outer wall of the annular tube, and the plurality of the nozzles are arranged in a ring shape.

[0009] Optionally, the magnetic drive mechanism includes a turntable, a second through hole for the liquid outlet pipe to pass through is opened in the center of the turntable, a gear ring is fixedly provided on the top surface of the turntable, an annular groove is opened on the outer wall of the turntable, and a limit ring is slidably connected inside the annular groove.

[0010] Optionally, mounting brackets are connected to both sides of the outer wall of the limiting ring.

[0011] Optionally, a second motor is fixedly mounted on the upper end surface of the mounting bracket on one side, a gear is fixedly connected to the output end of the second motor, and the lower end of the gear is meshingly connected to the upper end of the ring gear.

[0012] Optionally, the top of the mounting bracket is fixedly connected to the bottom of the fixing frame.

[0013] Optionally, the stirring assembly includes a support rod, a cross rod, a stirring rod and an arc-shaped stirring plate. The support rods are symmetrically arranged inside the glass reactor body, a cross rod is fixed between the support rods on both sides, the bottom end of the support rod is rotatably connected to a stirring rod, the upper end of the stirring rod is rotatably connected to the cross rod, and an arc-shaped stirring plate is fixed to the lower end of the stirring rod, and the stirring rod and the arc-shaped stirring plate are both gap-matched with the inner wall of the glass reactor body.

[0014] Optionally, a transparent window is provided on the front side of the outer wall of the glass reactor body.

[0015] The beneficial effects of the present invention are: The present invention provides a cleaning mechanism, drives the wheel frame to retract and release the connecting rope through the first motor, so that the cleaning component moves up and down on the inner wall of the reactor. After the connecting pipe is connected to the external water source, the inner wall of the reactor can be directly cleaned in all directions through multiple nozzles. Whenever a part of the inner wall is cleaned, the relative position of the connecting shaft and the wheel frame is locked by cooperating with the locking piece to prevent the wheel frame from rotating automatically during cleaning. After cleaning, it is checked through the transparent window whether the inner wall of the glass reactor body is clean, thereby realizing the automatic cleaning function of the inner wall of the glass reactor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a magnetic stirring reactor of the present invention; Figure 2 It is a structural schematic diagram of a magnetic stirring reactor of the present invention from another perspective; Figure 3 It is a front view of the present invention; Figure 4 It is a structural schematic diagram of the cleaning mechanism in the present invention; Figure 5 It is a structural schematic diagram of the cleaning mechanism in the present invention from another perspective; Figure 6 It is a schematic diagram of the structure of the cleaning component in the present invention; Figure 7 It is a structural schematic diagram of the magnetic driving mechanism in the present invention; Figure 8 It is a schematic diagram of the structure inside the glass reactor body of the present invention.

[0017] The numbers in the figure are: 1. Glass reactor body; 101. Liquid inlet; 102. Liquid outlet pipe; 103. First through hole; 2. Fixed frame; 3. Cleaning mechanism; 301. Fixing plate; 302. Mounting plate; 303. Wheel frame; 304. Connecting shaft; 305. Locking member; 306. Connecting rope; 307. Support frame; 308. Rotating wheel; 309. Cleaning assembly; 3091. Ring tube; 3092. Connecting tube; 3093. Nozzle; 310. First motor; 4. Transparent window; 5. Magnetic drive mechanism; 501. Turntable; 502. Gear ring; 503. Annular groove; 504. Limiting ring; 505. Mounting bracket; 506. Second motor; 507. Gear; 508. Arc-shaped magnetic block; 509. Second through hole; 6. stirring assembly; 601. support rod; 602. cross bar; 604. stirring rod; 605. arc stirring plate. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0019] The device of the present invention will be described below in conjunction with preferred embodiments thereof.

[0020] See also Figure 1-8 As shown, the magnetic stirring reactor comprises a glass reactor body 1, wherein the upper and lower end surfaces of the glass reactor body 1 are respectively provided with a liquid inlet 101 and a liquid outlet pipe 102, and the upper end surface of the glass reactor body 1 is further provided with a first through hole 103, wherein the liquid inlet 101 is used for adding reactants, and the liquid outlet pipe 102 is used for discharging the liquid after the reaction, and the outer wall of the glass reactor body 1 is provided with a fixing frame 2, and the top of the fixing frame 2 is provided with a cleaning mechanism 3 for cleaning the raw materials attached to the inner wall of the glass reactor body 1, and the cleaning mechanism 3 is used for cleaning the raw materials attached to the inner wall of the glass reactor body 1, and the interior of the glass reactor body 1 is provided with a stirring assembly 6, and a magnetic driving mechanism 5 for driving the stirring assembly 6 is provided below the glass reactor body 1, and the liquid in the reactor is stirred under the action of the magnetic driving mechanism 5, and a transparent window 4 is provided on the front side of the outer wall of the glass reactor body 1, and the transparent window 4 is convenient for observing the reaction situation inside the reactor.

[0021] In another embodiment provided by the present invention, Figure 4-6 As shown, the cleaning mechanism 3 includes a fixed plate 301, a mounting plate 302, a wheel frame 303, a connecting shaft 304, a locking piece 305, a connecting rope 306, a support frame 307 and a rotating wheel 308. The fixed plate 301 is fixedly mounted on the top of the fixed frame 2. The mounting plates 302 are symmetrically arranged on both sides of the upper end surface of the fixed plate 301. The wheel frames 303 are rotatably mounted on the mounting plates 302 on both sides. The connecting rope 306 is wound around the outside of the wheel frames 303. The connecting shaft 304 is fixedly connected between the opposite sides of the wheel frames 303 on both sides. The locking piece 305 is arranged in the middle of the connecting shaft 304. The support frame 307 is symmetrically arranged on the front side of the wheel frame 303 with respect to the fixed plate 301. The tops of the support frames 307 on both sides are rotatably connected to the rotating wheels 308. Furthermore, a first motor 310 for driving the connecting rope 306 to be retracted or extended is connected to the end of the wheel frame 303 on one side; Furthermore, the cleaning mechanism 3 further includes a cleaning assembly 309, and one end of the connecting ropes 306 on both sides away from the wheel frame 303 passes through the rotating wheel 308 and is fixedly connected to the cleaning assembly 309; Specifically, when it is necessary to control the cleaning component 309 to move up and down, the wheel frame 303 is driven to rotate by the first motor 310. Since the connecting shaft 304 synchronously connects the wheel frames 303 on both sides, the wheel frames 303 on both sides will rotate at the same speed and direction, thereby retracting and releasing the connecting rope 306. As the wheel frame 303 rotates, the connecting rope 306 will bypass the rotating wheel 308 and move up and down along the path of the support frame 307. One end of the connecting rope 306 is fixed on the wheel frame 303, and the other end is connected to the cleaning component 309. Therefore, the retraction and release of the connecting rope 306 will drive the cleaning component 309 to move up and down on the inner wall of the reactor. The setting of the rotating wheel 308 plays a role in supporting the connecting rope 306, thereby avoiding friction between the connecting rope 306 and the reactor, thereby extending the service life of the connecting rope 306.

[0022] Furthermore, the cleaning assembly 309 includes an annular tube 3091, a connecting tube 3092 and a nozzle 3093. The annular tube 3091 is slidably arranged on the inner wall of the glass reactor body 1, and the upper end surface of the annular tube 3091 is fixedly connected to the connecting rope 306. One end of the connecting tube 3092 is slidably inserted and connected to the first through hole 103 opened at the top of the glass reactor body 1, and the other end of the connecting tube 3092 is fixedly connected to the annular tube 3091. A plurality of nozzles 3093 are equidistantly fixedly installed on the outer wall of the annular tube 3091, and the plurality of nozzles 3093 are arranged in a ring shape.

[0023] Specifically, when cleaning is required, the first motor 310 drives the wheel frame 303 to retract and release the connecting rope 306, so that the cleaning component 309 moves up and down on the inner wall of the reactor. After the connecting pipe 3092 is connected to the external water source, the inner wall of the reactor can be directly cleaned in all directions through multiple nozzles 3093. By coordinating the retraction and release of the connecting rope 306, the annular tube 3091 can clean the inner wall of the reactor at all depths to ensure that all parts of the inner wall can be fully flushed, so that the cleaning can be more thorough. When there is no need to move the cleaning component 309, the relative position of the connecting shaft 304 and the wheel frame 303 can be locked by the locking member 305 to prevent the wheel frame 303 from rotating on its own, thereby ensuring the stability of the cleaning component 309.

[0024] It should be specifically explained that the locking member 305 refers to a shaft locking member for motor shaft processing with Chinese patent publication number "CN219113478U".

[0025] In another embodiment provided by the present invention, Figure 7As shown, the magnetic drive mechanism 5 includes a turntable 501, a second through hole 509 for the liquid outlet pipe 102 to pass through is opened in the center of the turntable 501, a gear ring 502 is fixedly provided on the top surface of the turntable 501, an annular groove 503 is opened on the outer wall of the turntable 501, a limit ring 504 is slidably connected inside the annular groove 503, both sides of the outer wall of the limit ring 504 are connected to mounting brackets 505, a second motor 506 is fixedly installed on the upper end surface of one side of the mounting bracket 505, the output end of the second motor 506 is fixedly connected to a gear 507, and the lower end of the gear 507 is meshed with the upper end of the gear ring 502.

[0026] Furthermore, the top of the mounting bracket 505 is fixedly connected to the bottom of the fixing frame 2 .

[0027] Specifically, when the second motor 506 is started, its output end drives the gear 507 to rotate. Since the gear 507 is meshed with the ring gear 502, the rotation of the gear 507 will drive the ring gear 502 and the turntable 501 to rotate together. This rotation drive method is simple and reliable, and can ensure that the turntable 501 rotates at a stable speed. The turntable 501 rotates along the limit ring 504 through the annular groove 503, driving the arc-shaped magnetic block 508 to rotate synchronously. The arc-shaped magnetic block 508 drives the arc-shaped stirring plate 605 inside the glass reactor body 1 to rotate synchronously through magnetic attraction, and the solution inside the glass reactor body 1 is rotated and stirred to accelerate the reaction, thereby improving the stirring efficiency and facilitating the use of magnetic stirring of the glass reactor body 1.

[0028] In another embodiment provided by the present invention, Figure 8 As shown, the stirring assembly 6 includes a support rod 601, a cross rod 602, a stirring rod 604 and an arc-shaped stirring plate 605. The support rods 601 are symmetrically arranged inside the glass reactor body 1, and a cross rod 602 is fixed between the support rods 601 on both sides. The bottom end of the support rod 601 is rotatably connected to the stirring rod 604, and the upper end of the stirring rod 604 is rotatably connected to the cross rod 602. The lower end of the stirring rod 604 is fixed with an arc-shaped stirring plate 605, and the stirring rod 604 and the arc-shaped stirring plate 605 are both matched with the inner wall gap of the glass reactor body 1.

[0029] Specifically, the arc-shaped magnetic block 508 of the magnetic drive mechanism 5 rotates to drive the arc-shaped stirring plate 605 to rotate, so that the arc-shaped stirring plate 605 drives the stirring rod 604 to rotate along the support rod 601 and the cross bar 602, so as to stir the solution inside the glass reactor body 1. After the stirring is completed, the solution can be discharged to the outside through the liquid outlet pipe 102, thereby facilitating the stirring of the glass reactor body 1.

[0030] Working principle: Add reactants into the glass reactor body 1 through the liquid inlet 101, then start the magnetic drive mechanism 5, start the second motor 506, and its output end drives the gear 507 to rotate. The gear 507 meshes with the gear ring 502, thereby driving the turntable 501 and the arc-shaped magnetic block 508 to rotate together. The arc-shaped magnetic block 508 drives the arc-shaped stirring plate 605 inside the glass reactor body 1 to rotate synchronously through the magnetic attraction to stir the reactants. The reaction situation inside the glass reactor body 1 is observed through the transparent window 4 to ensure that the reaction proceeds normally. After the reaction is completed, stop the second motor 506 to stop the magnetic drive mechanism 5, start the cleaning mechanism 3, and connect The tube 3092 is connected to an external water source, and then the first motor 310 is started to drive the wheel frame 303 to rotate and retract the connecting rope 306. The retraction and extension of the connecting rope 306 will drive the cleaning component 309 to move up and down on the inner wall of the glass reactor body 1. At the same time, multiple nozzles 3093 will spray water to clean the inner wall of the reactor in all directions. Whenever a part of the inner wall is cleaned, the relative position of the connecting shaft 304 and the wheel frame 303 is locked by cooperating with the locking member 305 to prevent the wheel frame 303 from rotating by itself during cleaning. After cleaning, check whether the inner wall of the glass reactor body 1 is cleaned through the transparent window 4, thereby realizing the automatic cleaning function of the inner wall of the glass reactor body 1.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A magnetic stirring reactor, characterized in that: The invention comprises a glass reactor body (1), wherein the upper and lower end surfaces of the glass reactor body (1) are respectively provided with a liquid inlet (101) and a liquid outlet pipe (102), and the upper end surface of the glass reactor body (1) is also provided with a first through hole (103). The outer wall of the glass reactor body (1) is provided with a fixing frame (2), and the top of the fixing frame (2) is provided with a cleaning mechanism (3) for cleaning raw materials attached to the inner wall of the glass reactor body (1). The interior of the glass reactor body (1) is provided with a stirring assembly (6), and the bottom of the glass reactor body (1) is provided with a magnetic driving mechanism (5) for driving the stirring assembly (6).

2. A magnetic stirring reactor according to claim 1, characterized in that: The cleaning mechanism (3) comprises a fixing plate (301), a mounting plate (302), a wheel frame (303), a connecting shaft (304), a locking member (305), a connecting rope (306), a supporting frame (307) and a rotating wheel (308). The fixing plate (301) is fixedly mounted on the top of the fixing frame (2). The mounting plates (302) are symmetrically arranged on both sides of the upper end surface of the fixing plate (301). The wheel frames (303) are rotatably mounted on the mounting plates (302) on both sides. The connecting rope (306) is wound around the outside of the wheel frames (303). The connecting shafts (304) are fixedly connected between the opposite side portions of the wheel frames (303) on both sides. The locking member (305) is arranged in the middle of the connecting shaft (304). The supporting frame (307) is symmetrically arranged on the front side of the wheel frame (303) with respect to the fixing plate (301). The tops of the supporting frames (307) on both sides are rotatably connected to the rotating wheels (308).

3. A magnetic stirring reactor according to claim 2, characterized in that: The cleaning mechanism (3) further comprises a cleaning assembly (309), and one end of the connecting rope (306) on both sides away from the wheel frame (303) passes through the rotating wheel (308) and is fixedly connected to the cleaning assembly (309).

4. A magnetic stirring reactor according to claim 3, characterized in that: The cleaning assembly (309) comprises an annular tube (3091), a connecting tube (3092) and a nozzle (3093); the annular tube (3091) is slidably arranged on the inner wall of the glass reactor body (1); the upper end surface of the annular tube (3091) is fixedly connected to the connecting rope (306); one end of the connecting tube (3092) is slidably inserted and connected to a first through hole (103) opened at the top of the glass reactor body (1); the other end of the connecting tube (3092) is fixedly connected to the annular tube (3091); a plurality of nozzles (3093) are equidistantly fixedly installed on the outer wall of the annular tube (3091); and the plurality of nozzles (3093) are arranged in an annular shape.

5. A magnetic stirring reactor according to claim 1, characterized in that: The magnetic drive mechanism (5) comprises a rotating disk (501), a second through hole (509) for a liquid outlet pipe (102) to pass through is provided at the center of the rotating disk (501), a gear ring (502) is fixedly provided on the top surface of the rotating disk (501), an annular groove (503) is provided on the outer wall of the rotating disk (501), and a limit ring (504) is slidably connected inside the annular groove (503).

6. A magnetic stirring reactor according to claim 5, characterized in that: Both sides of the outer wall of the limiting ring (504) are connected to mounting brackets (505).

7. A magnetic stirring reactor according to claim 6, characterized in that: A second motor (506) is fixedly mounted on the upper end surface of the mounting bracket (505) on one side, and a gear (507) is fixedly connected to the output end of the second motor (506), and the lower end of the gear (507) is meshingly connected to the upper end of the gear ring (502).

8. A magnetic stirring reactor according to claim 6, characterized in that: The top end of the mounting bracket (505) is fixedly connected to the bottom end of the fixing frame (2).

9. A magnetic stirring reactor according to claim 1, characterized in that: The stirring assembly (6) comprises a support rod (601), a cross rod (602), a stirring rod (604) and an arc-shaped stirring plate (605); the support rods (601) are symmetrically arranged inside the glass reactor body (1); a cross rod (602) is fixedly arranged between the support rods (601) on both sides; the stirring rod (604) is rotatably connected to the bottom end of the support rod (601); the upper end of the stirring rod (604) is rotatably connected to the cross rod (602); the arc-shaped stirring plate (605) is fixedly arranged at the lower end of the stirring rod (604); and the stirring rod (604) and the arc-shaped stirring plate (605) are both gap-matched with the inner wall of the glass reactor body (1).

10. A magnetic stirring reactor according to claim 1, characterized in that: A transparent window (4) is provided on the front side of the outer wall of the glass reactor body (1).

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