A condensation reaction device for dibenzoylmethane production

Abstract

The application relates to the technical field of reaction kettles, and discloses a condensation reaction device for dibenzoylmethane production, which comprises a reaction kettle tank, the inside of which is provided with a simulation shaking mechanism for simulating the shaking reaction state of dibenzoylmethane production raw materials in a test tube; the simulation shaking mechanism comprises a reaction inner tank, a shaking limiting ring and a tank pushing assembly, the shaking limiting ring is fixed to the inner wall of the reaction kettle tank and is located at a position higher than one-half of the height of the reaction inner tank, the reaction inner tank is hung in the shaking limiting ring and keeps a spacing of 5-10 cm with the shaking limiting ring; four electromagnets are arranged on the front, rear, left and right positions of the shaking limiting ring, the extension ends of the electromagnets correspond to the corresponding side walls of the reaction inner tank, the front and rear electromagnets constitute a first group, and the left and right electromagnets constitute a second group; through the grouping control of the electromagnets and the cooperation of the power-assisted push rods, the reciprocating swing of the reaction inner tank in the left-right or front-rear direction is realized.

Description

Technical Field

[0001] This invention relates to the field of reaction vessels, and more specifically, to a condensation reaction apparatus for the production of dibenzoylmethane. Background Technology

[0002] Benzoylmethane is an important organic synthesis intermediate widely used in pharmaceuticals, pesticides, dyes and other fields. In its production process, condensation reaction is one of the key steps, and traditional condensation reaction equipment usually uses a stirrer for mixing.

[0003] In existing technologies, reaction vessels often employ paddle, anchor, or turbine agitators for mixing. These agitators primarily use rotating blades to generate shear force or radial flow to mix materials. However, current technology lacks an industrial-scale device that can effectively simulate the unique mixing pattern of manually shaking test tubes in the laboratory. This makes it difficult to directly scale up laboratory results to industrial production, impacting the production efficiency and product quality of fine chemical products such as dibenzoylmethane. Therefore, we propose a condensation reaction apparatus for the production of dibenzoylmethane. Summary of the Invention

[0004] This invention provides a condensation reaction apparatus for the production of dibenzoylmethane, solving the technical problem that the lack of an industrial device that can effectively simulate the unique mixing mode of manually shaking test tubes in the laboratory makes it difficult to directly scale up laboratory results to industrial production, thus affecting the production efficiency and product quality of fine chemical products such as dibenzoylmethane.

[0005] This invention provides a condensation reaction apparatus for the production of dibenzoylmethane, comprising: a reaction vessel, which is equipped with a simulated shaking mechanism inside to simulate the shaking reaction state of the raw materials for the production of dibenzoylmethane in a test tube;

[0006] The simulated shaking mechanism includes an inner reaction vessel, a shaking limiting ring, and a pushing vessel assembly. The shaking limiting ring is fixed to the inner wall of the reaction vessel and is located at a position more than half the height of the inner reaction vessel. The inner reaction vessel is suspended inside the shaking limiting ring and maintains a distance of 5 to 10 cm between it and the shaking limiting ring.

[0007] An electromagnet is installed at each of the four positions of the shaking limiting ring: front, back, left, and right. The extension and retraction ends of each electromagnet are respectively facing the corresponding side wall of the inner reaction vessel. The front and back electromagnets form the first group, and the left and right electromagnets form the second group.

[0008] The pusher assembly includes two inclined push rods, located at the lower left and lower front of the inner reaction vessel, respectively;

[0009] When the raw materials are reacted in the reaction inner tank, the first group of electromagnets is controlled to make the telescopic end abut against the front wall and the back wall of the reaction inner tank, and the left lower power push rod is started to push the reaction inner tank to reciprocate in the left-right direction with the telescopic end of the first group of electromagnets as the axis, or the second group of electromagnets is controlled to make the telescopic end abut against the left wall and the right wall of the reaction inner tank, and the front lower power push rod is started to push the reaction inner tank to reciprocate in the front-back direction, so as to simulate the chemical reaction environment of manually shaking the test tube.

[0010] Further, the upper part of the reaction kettle is fixedly provided with a feeding upper body, the upper part of the feeding upper body is fixedly provided with a stirring motor, the driving end of the rotating shaft of the stirring motor is provided with a stirring piece, the stirring piece penetrates through the feeding upper body and extends into the reaction inner tank, and the outer end point of the stirring blade of the stirring piece is located at a distance greater than 10 cm from the inner wall of the reaction inner tank.

[0011] Further, the tank opening position of the reaction inner tank is fixedly provided with a soft rubber ring, one end of the soft rubber ring away from the reaction inner tank is fixedly connected with the inner wall of the tank opening of the reaction kettle, and the bottom center position of the reaction inner tank is fixedly provided with an inner tank discharge valve.

[0012] Further, the bottom center position of the reaction kettle is fixedly provided with an outer tank discharge valve, one end of the outer tank discharge valve inside the reaction kettle is fixedly connected with a bellows, and one end of the bellows away from the outer tank discharge valve is fixedly connected with the inner tank discharge valve.

[0013] Further, the upper wall of the shaking limiting ring is fixedly provided with a plurality of upper supporting arms, the top of each of the plurality of upper supporting arms is inwardly curved, the upper wall of the reaction inner tank is fixedly provided with an array of rope buckles, each of the rope buckles is fixedly provided with a hanging kettle rope, one end of each of the hanging kettle ropes away from the rope buckle is fixedly connected with the top end of the upper supporting arm, and the plurality of upper supporting arms and the plurality of rope buckles are in one-to-one correspondence.

[0014] Further, the telescopic end of each of the four electromagnets is fixedly provided with a telescopic head, the outer wall of the reaction inner tank is fixedly provided with a positioning seat opposite to the telescopic head, the positioning seat is provided with four positioning seats corresponding to the four telescopic heads, the side wall of each of the four telescopic heads is fixedly provided with a clamping buckle, and the clamping buckle protrudes from the outer wall of the telescopic head.

[0015] Further, one side of the positioning seat close to the telescopic head is provided with a clamping head groove in the form of a groove, which is matched with the telescopic head, a limiting sliding groove is horizontally arranged at the center position of the clamping head groove, and the limiting sliding groove is in the form of an arc, the clamping buckle can be clamped into the limiting sliding groove, and is used for limiting the swing of the reaction inner tank.

[0016] Furthermore, the positioning seat has a rope-retracting chamber inside, and a rebound rope is threaded through the rope-retracting chamber. One end of the rebound rope passes through one side of the positioning seat and is fixedly connected to the corresponding telescopic head. An elastic film is fixedly installed at the end of the rebound rope inside the rope-retracting chamber, and the elastic film is fixedly connected to the inner wall of the rope-retracting chamber to apply tension. The stretched rebound rope is used to limit the swaying of the reaction vessel.

[0017] Furthermore, a lower support arm is fixedly installed below the rocking limit ring, and a mounting plate is fixedly installed at the bottom end of the lower support arm, with the assist push rod fixedly installed in the mounting plate.

[0018] Furthermore, the telescopic end of the push rod is equipped with a push plate, and a shock-absorbing pad is fixedly installed at the end of the push plate near the inner reaction vessel.

[0019] The beneficial effects of this invention are as follows:

[0020] This invention achieves the reciprocating swing of the reaction vessel in the left-right or front-back direction by using electromagnet group control and assisting push rods. It accurately replicates the manual shaking action of test tubes in the laboratory, allowing the reactants to be fully mixed in dynamics, avoiding excessively high or low local concentrations, and significantly improving the efficiency and yield of the dibenzoylmethane condensation reaction.

[0021] Traditional stirring methods are difficult to completely eliminate dead zones and local concentration gradients, while the shaking mechanism, through overall reciprocating oscillation, can ensure that the reactants are fully macroscopically mixed throughout the entire reaction vessel, forming a multidimensional mixture, which greatly promotes mass and heat transfer, shortens reaction time, and improves reaction efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the reaction vessel of the present invention;

[0024] Figure 3 This is a schematic diagram of the internal structure of the reaction vessel of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the reaction vessel in a rocking state according to the present invention;

[0026] Figure 5 This is a schematic diagram of the shaking limiting ring structure of the present invention;

[0027] Figure 6 This is the invention Figure 5 Enlarged view of point A in the middle;

[0028] Figure 7 This is a schematic diagram of the power assist push rod structure of the present invention;

[0029] Figure 8 Figure 1 is a schematic diagram of the internal structure of the positioning seat of the present application.

[0030] In the figure: 11, reaction kettle; 12, feeding upper body; 13, stirring motor; 14, outer kettle discharge valve; 15, stirring part; 2, simulated shaking mechanism; 21, reaction inner kettle; 22, soft rubber ring; 23, inner kettle discharge valve; 24, bellows; 31, shaking limiting ring; 32, electromagnet; 33, upper support arm; 34, lower support arm; 35, rope buckle; 36, kettle hoisting rope; 37, power push rod; 38, push kettle plate; 39, mounting plate; 41, telescopic head; 42, positioning seat; 43, chuck groove; 44, rebound rope; 45, clamping buckle; 46, shock pad; 47, limiting sliding groove; 48, elastic rubber sheet; 49, rope collecting chamber. DETAILED DESCRIPTION

[0031] The subject matter described herein will now be discussed with reference to example implementations. It should be understood that the discussion of these implementations is merely meant to provide a better understanding of the subject matter described herein and can be changed in function and arrangement without departing from the scope of the present description. Various processes or components can be omitted, substituted, or added according to desired implementations. Additionally, features described with respect to some examples can be combined in other examples.

[0032] As shown in Figures 1-8 A condensation reaction device for producing dibenzoylmethane, comprising: a reaction kettle 11, which is internally provided with a simulated shaking mechanism 2 for simulating the shaking reaction state of the dibenzoylmethane production raw material in a test tube;

[0033] The simulated shaking mechanism 2 comprises a reaction inner kettle 21, a shaking limiting ring 31, and a push kettle assembly. The shaking limiting ring 31 is fixed to the inner wall of the reaction kettle 11 and is located at a position above one-half of the height of the reaction inner kettle 21. The reaction inner kettle 21 is hung in the shaking limiting ring 31 and maintains a spacing of 5 to 10 cm with the shaking limiting ring 31;

[0034] Four electromagnets 32 are respectively arranged at the front, back, left, and right of the shaking limiting ring 31. The extension ends of each electromagnet 32 respectively correspond to the corresponding side wall of the reaction inner kettle 21. The front and back electromagnets 32 constitute a first group, and the left and right electromagnets 32 constitute a second group.

[0035] The push kettle assembly comprises two power push rods 37 arranged obliquely and respectively located at the lower left and lower front of the reaction inner kettle 21.

[0036] When the raw materials are reacted in the reaction inner tank 21, the first set of electromagnets 32 is controlled to make the telescopic end abut against the front wall and the back wall of the reaction inner tank 21, and the left lower power push rod 37 is started to push the reaction inner tank 21 to reciprocate in the left-right direction as the axis of the telescopic end of the first set of electromagnets 32, or the second set of electromagnets 32 is controlled to make the telescopic end abut against the left wall and the right wall of the reaction inner tank 21, and the front lower power push rod 37 is started to push the reaction inner tank 21 to reciprocate in the front-back direction, so as to simulate the chemical reaction environment of manually shaking the test tube.

[0037] The upper portion of the reaction kettle tank 11 is fixedly provided with a feeding upper body 12, the upper portion of the feeding upper body 12 is fixedly provided with a stirring motor 13, the driving end of the rotating shaft of the stirring motor 13 is provided with a stirring piece 15, the stirring piece 15 penetrates through the feeding upper body 12 and extends into the reaction inner tank 21, and the outer end point of the stirring blade of the stirring piece 15 is more than 10 cm away from the inner wall of the reaction inner tank 21.

[0038] The tank opening position of the reaction inner tank 21 is fixedly provided with a soft rubber ring opening 22, one end of the soft rubber ring opening 22 away from the reaction inner tank 21 is fixedly connected with the inner wall of the tank opening of the reaction kettle tank 11, and the bottom center position of the reaction inner tank 21 is fixedly provided with an inner tank discharge valve 23.

[0039] The bottom center position of the reaction kettle tank 11 is fixedly provided with an outer tank discharge valve 14, one end of the outer tank discharge valve 14 inside the reaction kettle tank 11 is fixedly connected with a corrugated pipe 24, and one end of the corrugated pipe 24 away from the outer tank discharge valve 14 is fixedly connected with the inner tank discharge valve 23.

[0040] The upper wall of the shaking limiting ring 31 is fixedly provided with a plurality of upper supporting arms 33, the top of each of the plurality of upper supporting arms 33 is of an inwardly curved structure, the upper wall of the reaction inner tank 21 is fixedly provided with an array of rope buckles 35, the rope buckles 35 are fixedly provided with a kettle hoisting rope 36, one end of the kettle hoisting rope 36 away from the rope buckle 35 is fixedly connected with the top end of the upper supporting arm 33, and the plurality of upper supporting arms 33 correspond to the plurality of rope buckles 35 one by one.

[0041] The telescopic end of each of the four electromagnets 32 is fixedly provided with a telescopic head 41, the outer wall of the reaction inner tank 21 opposite to the telescopic head 41 is fixedly provided with a positioning seat 42, the positioning seat 42 is provided with four positioning seats corresponding to the four telescopic heads 41, the side wall of each of the four telescopic heads 41 is fixedly provided with a clamping buckle 45, and the clamping buckle 45 protrudes from the outer wall of the telescopic head 41.

[0042] The side of the positioning seat 42 close to the telescopic head 41 is provided with a clamping head groove 43, which is a groove type and matches the telescopic head 41, the center position of the clamping head groove 43 is transversely provided with a limiting sliding groove 47, which is in an arc shape, and the clamping buckle 45 can be clamped into the limiting sliding groove 47 for limiting the swing of the reaction inner tank 21.

[0043] The inside of the positioning seat 42 is provided with a rope collecting chamber 49, and the rebound rope 44 is arranged in the rope collecting chamber 49. One end of the rebound rope 44 penetrates through one side of the positioning seat 42 and is fixedly connected with the corresponding telescopic head 41. The end of the rebound rope 44 in the rope collecting chamber 49 is fixedly provided with an elastic film 48, and the elastic film 48 is fixedly connected with the inner wall of the rope collecting chamber 49, so as to exert a pulling force. The elongated rebound rope 44 is used to limit the swing of the reaction inner tank 21.

[0044] The lower side of the swing limiting ring 31 is fixedly provided with a lower supporting arm 34, and the bottom end of the lower supporting arm 34 is fixedly provided with a mounting plate 39. The power-assisted push rod 37 is fixedly installed in the mounting plate 39.

[0045] The telescopic end of the power-assisted push rod 37 is provided with a tank pushing plate 38, and one end of the tank pushing plate 38 close to the reaction inner tank 21 is fixedly provided with a shock pad 46.

[0046] Suspension and limiting of the reaction inner tank 21:

[0047] The reaction inner tank 21 is suspended in the swing limiting ring 31 through the tank lifting rope 36. One end of the tank lifting rope 36 is fixed to the rope buckle 35, and the other end is fixed to the top end of the upper supporting arm 33. This suspension mode makes the reaction inner tank 21 in a natural suspended state when it is static, and maintains a distance of 5-10 cm with the swing limiting ring 31, so as to provide space for swinging.

[0048] The swing limiting ring 31 is fixed to the inner wall of the reaction kettle tank 11 and is located above one-half of the height of the reaction inner tank 21, so as to ensure the stability during swinging. The inward bending structure of the upper supporting arm 33 further restricts the swing range of the reaction inner tank 21, so as to prevent excessive deviation.

[0049] Group control of electromagnets 32 and fixing of swing shaft:

[0050] There is one electromagnet 32 in each of the front, rear, left and right directions of the swing limiting ring 31, and the telescopic end of the electromagnet 32 faces the side wall of the reaction inner tank 21. The electromagnets 32 are divided into two groups: a first group and a second group.

[0051] When it is needed to simulate left-right direction swing, the first group of electromagnets 32 is controlled to be powered on, so that the telescopic end thereof abuts against the positioning seat 42 on the front wall and the rear wall of the reaction inner tank 21. At this time, the reaction inner tank 21 is fixed in the front-rear direction, but can swing left and right with the telescopic end of the first group of electromagnets 32 as the shaft.

[0052] Similarly, when it is needed to simulate front-rear direction swing, the second group of electromagnets 32 is controlled to be powered on, so that the telescopic end thereof abuts against the left wall and the right wall of the reaction inner tank 21. The reaction inner tank 21 is fixed in the left-right direction, but can swing in the front-rear direction.

[0053] Driving of the tank pushing assembly to swing:

[0054] The push-pull assembly includes two inclined power push rods 37, respectively located at the lower left and lower front of the reaction inner tank 21. The power push rods 37 are fixed to the lower support arm 34 through the mounting plate 39, and the lower support arm 34 is connected below the swing limiting ring 31.

[0055] In the left-right swing mode, the lower left power push rod 37 is started, and its telescopic end periodically pushes the lower left part of the reaction inner tank 21 through the push-pull plate 38 and the shock pad 46, so that the reaction inner tank 21 swings back and forth around the fixed point of the front and rear electromagnets 32.

[0056] In the front-back swing mode, the lower front power push rod 37 is started, and it pushes the lower front part of the reaction inner tank 21, so that the reaction inner tank 21 swings back and forth around the fixed point of the left and right electromagnets 32.

[0057] The swing frequency and amplitude can be adjusted by controlling the stroke and speed of the power push rod 37, accurately simulating the rhythm of manual shaking.

[0058] Auxiliary functions during swinging:

[0059] Stirring cooperation: The stirring motor 13 drives the stirring part 15 to extend into the inside of the reaction inner tank 21, and rotates to stir. The outer end point of the stirring blade is more than 10 cm away from the inner wall of the reaction inner tank 21, to avoid interference with the inner tank in swinging, while ensuring that the reactants are uniformly mixed under the dual action of swinging and stirring.

[0060] Sealing and unloading: The soft rubber ring 22 at the mouth of the reaction inner tank 21 is connected to the inner wall of the mouth of the reaction kettle 11, providing flexible sealing to allow the reaction inner tank 21 to remain sealed while swinging. When unloading, the inner tank unloading valve 23 and the outer tank unloading valve 14 are connected through the corrugated pipe 24, which has elasticity to adapt to the state of swinging, ensuring smooth unloading without leakage.

[0061] The soft rubber ring 22 provided at the mouth of the reaction inner tank 21 is a key component for dynamic sealing. The soft rubber ring 22 is made of rubber material and is firmly combined with the upper and lower tank mouths through vulcanization process: the lower end is vulcanized with the edge of the tank mouth of the reaction inner tank 21, and the upper end is vulcanized with the inner wall of the tank mouth of the reaction kettle 11. This vulcanization connection method not only ensures that the soft rubber ring 22 and the metal tank mouth form a seamless and dense interface, eliminating the risk of leakage, but also endows it with excellent flexibility and elastic recovery ability.

[0062] When the reaction inner tank 21 reciprocates forward and backward or left and right under the driving of the electromagnet 32 and the booster push rod 37, the soft rubber ring 22 can synchronously elastically deform with the reciprocation of the reaction inner tank 21, and the cylindrical rubber body can be stretched, compressed or bent in the reciprocation direction, effectively absorbing and compensating the displacement of the tank body, and always tightly adhering to the connection interface to maintain the air tightness and liquid tightness of the reaction system. Thus, the reaction inner tank 21 can realize the required multi-dimensional mixing effect under the dynamic working condition of simulating "manual shaking", and can reliably isolate the external environment to prevent the leakage or pollution of the reactants.

[0063] Limiting and rebounding: the telescopic head 41 of the electromagnet 32 telescopic end is embedded in the clamping head groove 43 of the positioning seat 42, and the clamping buckle 45 is clamped into the limiting sliding groove 47. The limiting sliding groove 47 is arc-shaped to limit the swing angle and prevent excessive swing. The rebounding rope 44 is fixed at one end to the telescopic head 41 and at the other end to the elastic film 48 fixed in the rope collecting chamber 49. When the reaction inner tank 21 swings, the rebounding rope 44 is stretched, and the elastic film 48 provides a rebounding force to help the reaction inner tank 21 return to the central position, reduce the swing inertia and improve the control accuracy.

[0064] Highly simulating the manual shaking environment:

[0065] Through the cooperation of the electromagnet 32 grouping and the booster push rod 37, the reciprocating swing of the reaction inner tank 21 in the left-right or forward-backward direction is realized, the action of manually shaking the test tube in the laboratory is accurately replicated, the reactants are fully mixed in the dynamic state, the local concentration is avoided to be too high or too low, and the condensation reaction efficiency and the dibenzoylmethane yield are improved.

[0066] The swing direction is switchable to adapt to the mixing needs of different reaction stages and enhance the process flexibility.

[0067] Stability and safety are improved:

[0068] The reaction inner tank 21 is suspended and shaken by the swing limiting ring 31 to ensure that it will not collide with the reaction kettle 11 during the swing process and reduce the equipment wear. The inward bending structure of the upper supporting arm 33 and the flexible connection of the kettle suspension rope 36 provide a buffer to prevent the swing from getting out of control.

[0069] The clamping of the electromagnet 32 and the positioning seat 42 fixes the swing axis and limits the swing amplitude to avoid leakage or damage caused by excessive inclination.

[0070] The rebounding system composed of the rebounding rope 44 and the elastic film 48 automatically pulls the reaction inner tank 21 back to the central position after the swing, reduces the residual vibration and improves the accuracy of reaction control.

[0071] Sealing and reliable unloading:

[0072] The soft rubber ring 22 is made of flexible material, which can keep sealing when swinging, prevent reaction leakage or external contamination, and ensure reaction purity.

[0073] The bellows 24 connects the inner tank discharge valve 23 and the outer tank discharge valve 14, allowing the reaction inner tank 21 to be smoothly discharged in a swinging state without stopping swinging, improving continuous production capacity and operation convenience.

[0074] The stirring and swinging work together:

[0075] The stirring part 15 rotates inside the reaction inner tank 21, complementing the swinging motion, forming multi-dimensional mixing, thoroughly breaking the stratification of reactants, promoting mass and heat transfer, and shortening reaction time.

[0076] The stirring blades of the stirring part 15 maintain a safe distance from the inner wall of the reaction inner tank 21, avoiding interference with swinging, while ensuring wide stirring coverage and no dead angles.

[0077] Shock absorption and durability:

[0078] The push plate 38 of the power-assisted push rod 37 is provided with a shock pad 46 to reduce the impact force when pushing, protect the surface of the reaction inner tank 21, and prolong the service life of the equipment.

[0079] The telescopic end of the electromagnet 32 and the positioning seat 42 are made of wear-resistant materials, which are durable and suitable for long-term industrial production.

[0080] Automation and control convenience:

[0081] The entire device can control the timing of the electromagnet 32 and the power-assisted push rod 37 through programming, achieving automated shaking, reducing manual operation, reducing labor intensity, ensuring consistency of reaction conditions, and improving product quality stability.

[0082] The core function of the electromagnet 32 is to establish a switchable swinging axis, i.e., "fixed axis"; while the power-assisted push rod 37 as an electric actuator is an electric push rod, which is the direct power source for shaking. After the axis is fixed by the electromagnet 32, the power-assisted push rod 37 located at the lower left or front lower is programmed to be energized and extended, and the inclined end of the push rod will periodically push the lower part of the reaction inner tank 21, forcing the reaction inner tank 21 to swing back and forth, thus perfectly simulating the manual shaking of the test tube through electric control.

[0083] The above describes the embodiments of the present application, but the present application is not limited to the above specific embodiments, which are only illustrative and not limiting. Those skilled in the art can make many forms under the inspiration of the present embodiment, which are all within the protection of the present embodiment.

Claims

1. A condensation reaction apparatus for the production of dibenzoylmethane, characterized in that, include: The reactor (11) is equipped with a simulated shaking mechanism (2) to simulate the shaking reaction state of the raw materials for dibenzoylmethane production in a test tube; The simulated shaking mechanism (2) includes an inner reaction vessel (21), a shaking limiting ring (31), and a pushing assembly. The shaking limiting ring (31) is fixed to the inner wall of the reaction vessel (11) and is located at a position more than half the height of the inner reaction vessel (21). The inner reaction vessel (21) is suspended inside the shaking limiting ring (31) and maintains a distance of 5 to 10 cm between it and the shaking limiting ring (31). An electromagnet (32) is provided in the front, back, left and right directions of the shaking limiting ring (31). The telescopic ends of each electromagnet (32) are respectively facing the corresponding side wall of the reaction tank (21). The front and back electromagnets (32) form the first group, and the left and right electromagnets (32) form the second group. The pusher assembly includes two inclined push rods (37), located at the lower left and lower front of the inner reaction vessel (21), respectively; Each of the four electromagnets (32) has a telescopic head (41) fixedly installed at its telescopic end. The outer wall of the reaction tank (21) is fixedly installed with a positioning seat (42) at the position opposite to the telescopic head (41). There are four positioning seats (42), which correspond one-to-one with the four telescopic heads (41). Each of the four telescopic heads (41) has a locking block (45) fixedly installed on its side wall, and the locking block (45) protrudes from the outer wall of the telescopic head (41). The positioning seat (42) has a locking groove (43) on the side near the telescopic head (41), which is in the shape of a groove and matches the telescopic head (41). A limiting slide groove (47) is opened horizontally at the center of the locking groove (43), and the limiting slide groove (47) is in the shape of an arc. The locking buckle (45) can be locked into the limiting slide groove (47) to limit the swaying of the inner reaction tank (21). The positioning seat (42) has a rope-retracting chamber (49) inside, and a rebound rope (44) is inserted inside the rope-retracting chamber (49). One end of the rebound rope (44) passes through one side of the positioning seat (42) and is fixedly connected to the corresponding telescopic head (41). An elastic film (48) is fixedly installed at one end of the rebound rope (44) inside the rope-retracting chamber (49), and the elastic film (48) is fixedly connected to the inner wall of the rope-retracting chamber (49) to apply tension. The stretched rebound rope (44) is used to limit the swing of the reaction tank (21). When the raw materials react in the reaction vessel (21), the first set of electromagnets (32) is controlled to press their extension ends against the front and rear walls of the reaction vessel (21), and the booster rod (37) located at the lower left is activated to push the reaction vessel (21) to swing back and forth in the left and right directions with the extension ends of the first set of electromagnets (32) as the axis. Alternatively, the second set of electromagnets (32) is controlled to press their extension ends against the left and right walls of the reaction vessel (21), and the booster rod (37) located at the lower front is activated to push the reaction vessel (21) to swing back and forth in the front and back directions, thereby simulating the chemical reaction environment of manually shaking a test tube.

2. The condensation reaction apparatus for producing dibenzoylmethane according to claim 1, characterized in that, A feeding upper body (12) is fixedly installed above the reaction vessel (11), and a stirring motor (13) is fixedly installed above the feeding upper body (12). A stirring element (15) is installed at the drive end of the rotating shaft of the stirring motor (13). The stirring element (15) extends through the feeding upper body (12) into the reaction inner tank (21), and the distance between the outer end of the stirring blade of the stirring element (15) and the inner wall of the reaction inner tank (21) is greater than 10cm.

3. The condensation reaction apparatus for producing dibenzoylmethane according to claim 1, characterized in that, The inner reaction vessel (21) is fixedly provided with a soft rubber ring (22) at the opening position, and the end of the soft rubber ring (22) away from the inner reaction vessel (21) is fixedly connected to the inner wall of the opening of the reactor vessel (11). The inner reaction vessel (21) is fixedly provided with an inner vessel discharge valve (23) at the bottom center position.

4. A condensation reaction apparatus for the production of dibenzoylmethane according to claim 3, characterized in that, An outer tank unloading valve (14) is fixedly installed at the bottom center of the reactor (11), and a bellows pipe (24) is fixedly connected to one end of the outer tank unloading valve (14) inside the reactor (11). The end of the bellows pipe (24) away from the outer tank unloading valve (14) is fixedly connected to the inner tank unloading valve (23).

5. A condensation reaction apparatus for the production of dibenzoylmethane according to claim 1, characterized in that, The upper wall of the shaking limiting ring (31) is fixed with several upper support arms (33), and the top of the several upper support arms (33) is a curved structure. The upper wall of the reaction inner tank (21) is fixed with a hanging rope buckle (35), and a hanging rope (36) is fixed on the hanging rope buckle (35). The end of the hanging rope (36) away from the hanging rope buckle (35) is fixedly connected to the top of the upper support arm (33). The several upper support arms (33) correspond one-to-one with the several hanging rope buckles (35).

6. The condensation reaction apparatus for producing dibenzoylmethane according to claim 1, characterized in that, A lower support arm (34) is fixedly installed below the swaying limiting ring (31), and a mounting plate (39) is fixedly installed at the bottom end of the lower support arm (34), and the assist push rod (37) is fixedly installed in the mounting plate (39).

7. A condensation reaction apparatus for the production of dibenzoylmethane according to claim 6, characterized in that, The telescopic end of the push rod (37) is provided with a push plate (38), and a shock-absorbing pad (46) is fixedly provided at one end of the push plate (38) near the inner reaction vessel (21).

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