Mixing device for catalyst production

Abstract

The invention discloses a mixing device for catalyst production. The mixing device comprises a feeding mechanism and a dispersing mechanism, the feeding mechanism comprises a plurality of metering pipes, a speed reducing mechanism, a swing arm and a collecting pipe, plungers are arranged in the metering pipes, the speed reducing mechanism comprises a gear sleeve and a speed reducing gear, the gear sleeve is arranged on the transmission shaft, one end of the swing arm is rotationally connected with the plungers, and the other end of the swing arm is eccentrically arranged on the speed reducing gear; the metering pipe is provided with an input pipe for conveying an additive and an output port communicated with the collecting pipe; the dispersing mechanism comprises a stator and a rotor, a first dispersing cavity and a second dispersing cavity are formed between the stator and the rotor, the stator is provided with a plurality of first homogenizing plates, and a plurality of diffusion holes are formed in the outer portions of the first homogenizing plates. The problems that an additive input mechanism and a stirring mechanism are not coordinated in operation and the local concentration is too high are solved, and the catalyst mixing quality can be guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to a general method for catalyst preparation, in particular to a mixing device for catalyst production. BACKGROUND

[0002] In the process of modification of ionic liquid catalyst, activation and stabilization of transition metal complex catalyst, adding trace amount of chemical components and mixing with sufficient stirring are common and important operations for obtaining high performance catalyst products.

[0003] For example, in the preparation of acidic ionic liquid catalyst and transition metal doped ionic liquid catalyst, metal halides (such as AlCl3, FeCl3, CuCl3, ZnCl3, etc.), Lewis acids, Bronsted acids, other metal salts or organic additives need to be added.

[0004] The above additives are the key to form catalytically active centers, for example, the dosage of AlCl3 determines the acidity and catalytic activity of chloroaluminate ionic liquid. The additives are usually input in batches and under strict temperature control, and with sufficient stirring, the additives can be quickly and uniformly dispersed in the ionic liquid and quickly and fully chemically reacted to form the required active center or stable structure.

[0005] In the prior art, the mixing between the catalyst matrix and the additives is usually carried out in a reaction kettle, and mechanical stirring is used to achieve the purpose of sufficient mixing. Although the uniformity of mixing can be ensured by increasing the stirring time, the additives are usually injected into the reaction kettle in one-time or batch feeding mode, and then the stirring rod is moved in the reaction kettle according to the periodic motion to drive the liquid catalyst to flow in the reaction kettle to achieve the purpose of mixing. However, the above mechanical stirring mixing method is essentially to promote the fusion and reaction of the catalyst matrix and the additives by liquid flow, which is equivalent to the natural diffusion of the additives in the catalyst matrix.

[0006] Secondly, the mechanism for controlling the input of additives and the mixing and stirring mechanism are independent, that is, the input of additives cannot follow the operation rhythm of the stirring mechanism, so that after the additives are directly contacted with the catalyst matrix, they cannot immediately contact with the stirring mechanism and disperse into the catalyst matrix under the action of the stirring mechanism, which further causes the problem of local high concentration in a short time, leading to side reactions, decomposition, precipitation or poor selectivity, ultimately affecting the performance and reliability of the catalyst product.

[0007] Therefore, the conventional mechanical stirring method for catalyst preparation has the shortcomings of precise injection of trace amount of additives and rapid dispersion in a short time, and these two aspects also determine the final quality of the catalyst product. SUMMARY

[0008] The present application aims to provide a mixing device for catalyst production to solve the problems in the background.

[0009] To achieve the above object, the present application provides the following technical scheme: a mixing device for catalyst production, comprising a driving mechanism and a reaction kettle, the driving mechanism comprising a motor, a transmission shaft and an impeller, the transmission shaft penetrating through the bottom of the reaction kettle, the impeller being fixed on the transmission shaft, further comprising a feeding mechanism and a dispersion mechanism.

[0010] The feeding mechanism comprises a plurality of metering pipes, a speed reduction mechanism, a swing arm and a manifold, the metering pipe being provided with a plunger, the speed reduction mechanism comprising a gear sleeve and a speed reduction gear, the gear sleeve being arranged on the transmission shaft, one end of the swing arm being rotatably connected with the plunger, and the other end being eccentrically arranged on the speed reduction gear;

[0011] The metering pipe has an input pipe for conveying additives and an output port communicating with the manifold;

[0012] The dispersion mechanism comprises a stator and a rotor, a dispersion cavity one and a dispersion cavity two being formed between the stator and the rotor, the stator having a plurality of homogenizing plates one located between the dispersion cavity one and the dispersion cavity two;

[0013] The homogenizing plate one is hollow inside, and the homogenizing plate one is in communication with the manifold respectively inside, the homogenizing plate one being provided with a plurality of diffusion holes outside, the diffusion holes respectively forming a mixing area of catalyst matrix and additives with the intersection of the dispersion cavity one and the dispersion cavity two.

[0014] Preferably, the input pipe is provided with an electronic metering valve for metering additives, and the input pipe is provided with a one-way valve one with a conduction direction towards the metering pipe.

[0015] Preferably, the output port is provided with a one-way valve two with a conduction direction towards the manifold.

[0016] Preferably, the feeding mechanism further comprises an adjusting mechanism, the adjusting mechanism comprising an adjusting rod, a lead screw, a sliding block and a sliding slot, the sliding slot being opened on the speed reduction gear, the lead screw being arranged inside the sliding slot, and the sliding block being installed on the outside of the lead screw through thread engagement;

[0017] The adjusting rod is located at the shaft center of the speed reduction gear, and the end of the adjusting rod is rotatably engaged with the end of the lead screw.

[0018] The swing arm is rotatably installed on the sliding block.

[0019] Preferably, the metering pipe is provided with a flushing pipe in communication with the inside of the reaction kettle.

[0020] The flushing pipe is provided with an electromagnetic valve.

[0021] Preferably, the flushing pipe is provided with a one-way valve.

[0022] Preferably, the stator is arranged at the bottom of the reactor, and the rotor is arranged inside the stator.

[0023] The stator is provided with a plurality of notches.

[0024] Preferably, the impeller is arranged inside the upper end of the stator.

[0025] Preferably, the rotor is provided with a plurality of guide plates one and a plurality of homogenizing plates two.

[0026] The dispersion cavity one is arranged between the homogenizing plate one and the homogenizing plate two, and the dispersion cavity two is arranged between the homogenizing plate one and the guide plate one.

[0027] Preferably, the rotor is further provided with a plurality of guide plates two, and the guide plates two have the same deflection direction as the blades of the impeller.

[0028] Compared with the prior art, the present application has the following advantages:

[0029] 1. The present application achieves the effect of the dispersion mechanism and the feeding mechanism running cooperatively by arranging the speed reduction mechanism and the swing arm. The additive output by the feeding mechanism can be immediately dispersed under the action of the dispersion mechanism through the synchronous running of the dispersion mechanism and the feeding mechanism, thereby effectively avoiding the quality problem caused by the local high concentration of the additive in the catalyst matrix, and further ensuring the quality stability and uniformity of the catalyst product.

[0030] 2. The present application achieves the effect of adjusting the input amount of the additive in the metering pipe by arranging the adjusting mechanism. The moving stroke of the plunger can be adjusted through the adjusting mechanism, thereby obtaining different dosages of the additive input and output, and the amount of the additive output by the plunger in each running cycle is constant, which can facilitate the accurate control of the additive input amount.

[0031] 3. The present application achieves the effect of rapidly dispersing the additive by arranging the homogenizing plate one and the diffusion hole. The additive output by the feeding mechanism can be output to the dispersion cavity one and the dispersion cavity two through the diffusion hole, and the additive is mixed with the catalyst at the intersection of the diffusion hole and the dispersion cavity one and the dispersion cavity two, and is driven to flow rapidly in the dispersion cavity one and the dispersion cavity two by the high-speed rotation of the rotor, so that the catalyst and the additive are rapidly mixed. Moreover, the catalyst and the additive can be sheared at the edges of the homogenizing plate one, the guide plate one and the homogenizing plate two during the process of passing through the dispersion cavity one and the dispersion cavity two, and are rapidly formed into small droplets under the action of the shearing force, and are mixed again after being sufficiently refined, thereby effectively preventing the quality problem caused by the local high concentration of the additive in the catalyst matrix. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is the inside structure schematic diagram of the reaction kettle of the present application;

[0033] Figure 2 It is the main section structure schematic diagram of the feeding mechanism and the dispersion mechanism of the present application;

[0034] Figure 3 It is the section structure schematic diagram of the dispersion mechanism of the present application;

[0035] Figure 4 It is the bottom structure schematic diagram of the feeding mechanism of the present application;

[0036] Figure 5 It is the bottom structure schematic diagram of the speed reduction mechanism of the present application;

[0037] Figure 6 It is the section structure schematic diagram of the feeding mechanism of the present application;

[0038] Figure 7 It is the section structure schematic diagram of the adjusting mechanism of the present application;

[0039] Figure 8 It is the bottom structure schematic diagram of the adjusting mechanism of the present application;

[0040] Figure 9 It is the axial explosion structure schematic diagram of the dispersion mechanism parts of the present application;

[0041] Figure 10 It is the inside structure schematic diagram of the dispersion mechanism of the present application;

[0042] Figure 11 It is the position distribution schematic diagram of the dispersion cavity one and the dispersion cavity two of the present application;

[0043] Figure 12 It is the appearance structure schematic diagram of the homogenizing plate one of the present application.

[0044] In the figure:

[0045] 100, feeding mechanism; 110, metering pipe; 111, plunger; 112, input pipe; 1121, electronic metering valve; 113, output port; 114, flushing pipe; 1141, electromagnetic valve; 120, speed reduction mechanism; 121, gear sleeve; 122, speed reduction gear; 130, adjusting mechanism; 131, adjusting rod; 132, screw; 133, sliding block; 134, sliding slot; 140, swing arm; 150, manifold;

[0046] 200, dispersion mechanism; 210, stator; 211, slot; 212, homogenizing plate one; 2121, diffusion hole; 220, rotor; 221, guide plate one; 222, homogenizing plate two; 223, guide plate two; 230, dispersion cavity one; 240, dispersion cavity two;

[0047] 300, driving mechanism; 310, motor; 320, transmission shaft; 330, impeller;

[0048] 400, reaction kettle. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0050] Please refer to Figures 1 to 12 The present application provides the following two embodiments:

[0051] Embodiment one:

[0052] A mixing device for catalyst production, comprising a driving mechanism 300 and a reaction kettle 400, the reaction kettle 400 serving as a catalyst mixing reaction container, and each component of the catalyst is mixed in the reaction kettle 400 to form a final product.

[0053] Please refer to Figure 1 The driving mechanism 300 comprises a motor 310, a transmission shaft 320 and an impeller 330, the transmission shaft 320 is connected with the output end of the motor 310, and the impeller 330 is fixed on the surface of the transmission shaft 320. The transmission shaft 320 penetrates through the bottom of the reaction kettle 400, and a sealing bearing is arranged between the transmission shaft 320 and the reaction kettle 400, which is used to seal the gap between the transmission shaft 320 and the reaction kettle 400, prevent the leakage of chemical additives, and ensure that the transmission shaft 320 can rotate smoothly.

[0054] Specifically, the motor 310 drives the transmission shaft 320 to rotate, and drives the impeller 330 to rotate, and the impeller 330 rotates in the reaction kettle 400 to generate liquid flow for stirring and mixing the catalyst.

[0055] It is worth noting that the mixing device for catalyst production further comprises a feeding mechanism 100 and a dispersion mechanism 200, the feeding mechanism 100 is used to inject part of the additives into the reaction kettle 400, and the dispersion mechanism 200 is used to mix the additives sufficiently to form a catalyst product with uniform dispersion.

[0056] Specifically, please refer toFigures 2 to 8 The feeding mechanism 100 comprises a metering pipe 110, a deceleration mechanism 120, a swing arm 140 and a manifold 150.

[0057] Please refer to Figure 6 The metering pipe 110 is internally provided with a plunger 111, which moves in the metering pipe 110 for sucking in and outputting additives.

[0058] Please refer to Figure 4 and Figure 5 The deceleration mechanism 120 comprises a gear sleeve 121 and a deceleration gear 122, the gear sleeve 121 is arranged outside the bottom end of the transmission shaft 320, and the deceleration gear 122 is engaged with the gear sleeve 121, the gear sleeve 121 has less teeth than the deceleration gear 122.

[0059] Please refer to Figure 6 The swing arm 140 is rotationally connected to one end of the plunger 111 and eccentrically arranged on the deceleration gear 122 at the other end. The swing arm 140 is used for power transmission to drive the plunger 111 to reciprocate in the metering pipe 110 for sucking in and extruding additives, thereby forming input and output of additives.

[0060] It is worth noting that the movement of the plurality of plungers 111 is in step, i.e. the plurality of plungers 111 is synchronously ejected or synchronously retracted, for keeping the overall force balance of the deceleration mechanism 120 and the feeding mechanism 100.

[0061] When the deceleration gear 122 rotates, the eccentric connection between the swing arm 140 and the deceleration gear 122 rotates along the axis of the deceleration gear 122, which, in combination with the rotational connection between the swing arm 140 and the plunger 111, constitutes a mechanism for converting circular motion into reciprocating linear motion, thereby driving the plunger 111 to reciprocate in the metering pipe 110.

[0062] When the plunger 111 moves, additives can be sucked into the metering pipe 110 from the input pipe 112, extruded from the output port 113 in the metering pipe 110, and uniformly injected into the dispersing mechanism 200, which uniformly mixes the additives with the catalyst matrix to form a catalyst product with uniform component distribution.

[0063] The metering pipe 110 has an input pipe 112 for conveying additives and an output port 113 connected to the manifold 150, the input pipe 112 is provided with an electronic metering valve 1121 for metering additives, and the input pipe 112 is provided with a one-way valve I with a conduction direction towards the inside of the metering pipe 110, for preventing additives from flowing back into the input pipe 112.

[0064] The output port 113 is provided with a one-way valve II with a conduction direction towards the manifold 150, for preventing additives in the manifold 150 from flowing back into the metering pipe 110.

[0065] It is worth noting that the input pipe 112 is provided with an electronic metering valve 1121, and the output port 113 is provided with a one-way valve, and the one-way valve is in a conduction direction towards the manifold 150.

[0066] The mixing device for catalyst production further comprises a control mechanism electrically connected with the motor 310 and the electronic metering valve 1121 respectively, and the control mechanism is used to control the rotating speed of the transmission shaft 320 and the on-off state of the electronic metering valve 1121 respectively, so as to coordinate the mixing process of the catalyst, and the electronic metering valve 1121 is used to measure the dosage of the additive in the input metering pipe 110, and after reaching the set dosage, the control mechanism controls the electronic metering valve 1121 to be closed, so as to stop the input of the additive and keep the accuracy of the dosage of the additive.

[0067] The deceleration mechanism 120 and the swing arm 140 can coordinate the operation of the dispersing mechanism 200 and the feeding mechanism 100, so that the additive output by the feeding mechanism 100 can be immediately dispersed under the action of the dispersing mechanism 200, which can effectively avoid the quality problem caused by the local high concentration of the additive in the catalyst matrix, and further ensure the quality stability and uniformity of the catalyst product.

[0068] Please refer to Figures 9 to 12 The dispersing mechanism 200 comprises a stator 210 and a rotor 220, the rotor 220 is located inside the stator 210, and the rotor 220 is fixedly connected with the outside of the transmission shaft 320.

[0069] Please refer to Figure 2 The stator 210 is arranged at the bottom of the reaction kettle 400, and the stator 210 has a plurality of notches 211 outside, and the notches 211 are used to connect the space inside the stator 210 with the inside of the reaction kettle 400.

[0070] It is worth noting that the impeller 330 is located inside the upper end of the stator 210, and the rotation of the impeller 330 generates liquid flow input into the stator 210, and then flows back to the reaction kettle 400 through the notches 211.

[0071] Please refer to Figure 10 The stator 210 and the rotor 220 form a dispersing cavity one 230 and a dispersing cavity two 240, and the stator 210 has a plurality of homogenizing plates one 212 located between the dispersing cavity one 230 and the dispersing cavity two 240.

[0072] It is worth noting that please refer to Figure 11 and Figure 12 The inside of the homogenizing plate one 212 is hollow, and the inside of the homogenizing plate one 212 is connected with the manifold 150 respectively, the outside of the homogenizing plate one 212 is provided with a plurality of diffusion holes 2121, the diffusion holes 2121 are uniformly distributed on the surface of the homogenizing plate one 212, and the cross section of the diffusion holes 2121 is in the shape of a trumpet mouth.

[0073] Please refer to Figure 11 The rotor 220 has a plurality of guide plates one 221 and a plurality of homogenizing plates two 222, a dispersion cavity one 230 is located between the homogenizing plate one 212 and the homogenizing plate two 222, and a dispersion cavity two 240 is located between the homogenizing plate one 212 and the guide plate one 221.

[0074] The rotor 220 also has a plurality of guide plates two 223 at the top, and the guide plates two 223 are in the same deflection direction as the blades of the impeller 330, and the guide plates two 223 are used to follow the rotation of the rotor 220 to generate a continuous catalyst liquid flow to the inside of the rotor 220.

[0075] Specifically, the dispersion cavity one 230 and the dispersion cavity two 240 are used for the flow of additives, and the diffusion hole 2121 and the intersection of the dispersion cavity one 230 and the dispersion cavity two 240 constitute a mixing area of the additives and the catalyst matrix.

[0076] The additives output from the output port 113 of the metering pipe 110 are injected into the manifold 150, and then injected into the homogenizing plate one 212 through the manifold 150, and finally input into the dispersion cavity one 230 and the dispersion cavity two 240 through the diffusion hole 2121. The additives are mixed with the catalyst at the intersection of the diffusion hole 2121 and the dispersion cavity one 230 and the dispersion cavity two 240, and driven by the high-speed rotation of the rotor 220 to flow quickly in the dispersion cavity one 230 and the dispersion cavity two 240, so that they are quickly mixed.

[0077] And the catalyst and the additives can be subjected to shearing force at the edges of the homogenizing plate one 212, the guide plate one 221 and the homogenizing plate two 222 during the dispersion process in the dispersion cavity one 230 and the dispersion cavity two 240. The catalyst matrix and the additive droplets are quickly formed into small droplets under the action of the shearing force, and then mixed again after being fully refined. At the same time, under the mutual rotation between the rotor 220 and the stator 210, bubbles are generated during the dispersion process of the catalyst matrix and the additives by shearing force. The liquid droplets are further dispersed by the cavitation effect generated by the explosion of the bubbles, and form smaller droplets. With the flow of the additives, the additive droplets are mixed again to form a catalyst product with more uniform raw material distribution, effectively preventing quality problems caused by excessive local concentration of additives in the catalyst matrix.

[0078] It is worth noting that, please refer to Figure 6 The metering pipe 110 also has a flushing pipe 114 connected to the reaction kettle 400, and the flushing pipe 114 is provided with an electromagnetic valve 1141, and the electromagnetic valve 1141 is electrically connected to the control mechanism.

[0079] Secondly, the flushing pipe 114 is provided with a one-way valve three with a direction of conduction towards the inside of the metering pipe 110, so as to realize the one-way flow of the flushing pipe 114.

[0080] Specifically, when the electronic metering valve 1121 measures that the input additive reaches the set dose, the control mechanism controls the electronic metering valve 1121 to close, stops the input of the additive, and at the same time, the control mechanism opens the electromagnetic valve 1141 to connect the flushing pipe 114 with the metering pipe 110.

[0081] With the continuous reciprocating movement of the plunger 111, the catalyst in the reaction kettle 400 can be sucked into the inside of the metering pipe 110 through the flushing pipe 114, and again follow the movement of the plunger 111, output to the dispersion cavity one 230 and the dispersion cavity two 240, forming a circulating path for flushing the inner wall of the metering pipe 110, which can flush the inner wall of the metering pipe 110.

[0082] For the additive with small dose, after flushing, the residual in the inner wall of the metering pipe 110 can be injected into the dispersion mechanism 200 again, and with the continuous operation of the dispersion mechanism 200, the catalyst in the reaction kettle 400 can be continuously dispersed, which can guarantee the accurate proportioning of each component of the additive and ensure the quality of the catalyst product.

[0083] After the additive is completely injected, the inner wall of the metering pipe 110 is flushed through the flushing pipe 114, and at the same time, the impeller 330 continuously operates to generate a continuous catalyst liquid flow flowing into the inside of the dispersion mechanism 200, which is continuously dispersed and mixed after passing through the dispersion cavity one 230 and the dispersion cavity two 240, and then output to the reaction kettle 400 through the slot 211, and forms a catalyst liquid flow circulation, and the continuous dispersion can ensure that each component of the catalyst is fully mixed to form a catalyst product with uniform components.

[0084] Example two:

[0085] In combination with the content in the above example one, another example is proposed:

[0086] Please refer to Figure 6 and Figure 7 The feeding mechanism 100 further comprises an adjusting mechanism 130, the adjusting mechanism 130 comprising an adjusting rod 131, a lead screw 132, a sliding block 133 and a sliding groove 134, the sliding groove 134 being opened on the reduction gear 122, and the lead screw 132 being arranged inside the sliding groove 134, the sliding block 133 being installed outside the lead screw 132 through thread engagement, and the swing arm 140 being rotatably installed on the sliding block 133.

[0087] The adjusting rod 131 is located at the shaft center of the reduction gear 122, and the end of the adjusting rod 131 is rotatably engaged with the end of the lead screw 132.

[0088] The lower surface of the adjusting rod 131 is provided with an internal hexagonal hole, which is used for rotating the adjusting rod 131 by using a tool, and through the rotation of the adjusting rod 131, the lead screw 132 is driven to rotate, and under the limiting action of the sliding groove 134, the sliding block 133 can move along the surface of the lead screw 132.

[0089] Specifically, when the adjusting rod 131 rotates, the driving slider 133 moves along the surface of the screw rod 132, and when the slider 133 moves, the distance between the rotating connection of the slider 133 and the swing arm 140 and the axis of the reduction gear 122 changes.

[0090] When the reduction gear 122 rotates, the diameter of the circular motion track formed by the position of the slider 133 decreases, and then, the combination of the slider 133 and the swing arm 140 constitutes a mechanism for converting circular motion into reciprocating linear motion. When the position of the slider 133 changes, the reciprocating motion formed by the swing arm 140 following the rotation of the reduction gear 122 also changes, thereby achieving the effect of changing the reciprocating movement stroke of the plunger 111.

[0091] When the movement stroke of the plunger 111 changes, the dose of the additive sucked and squeezed by the plunger 111 also changes. Different input and output amounts can be set according to the size of the additive dose, achieving the effect of uniformly injecting the additive into the dispersion mechanism 200. The dispersion mechanism 200 uniformly mixes the additive and the catalyst matrix, forming a catalyst product with uniform component distribution.

[0092] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A mixing device for catalyst production, comprising a drive mechanism (300) and a reactor (400), wherein the drive mechanism (300) includes a motor (310), a drive shaft (320), and an impeller (330), the drive shaft (320) extending through the bottom of the reactor (400), and the impeller (330) fixed to the drive shaft (320), characterized in that: It also includes a feeding mechanism (100) and a dispersing mechanism (200); The feeding mechanism (100) includes multiple metering tubes (110), a reduction mechanism (120), a swing arm (140), and a manifold (150). The metering tube (110) is provided with a plunger (111). The reduction mechanism (120) includes a gear sleeve (121) and a reduction gear (122). The gear sleeve (121) is mounted on the transmission shaft (320). One end of the swing arm (140) is rotatably connected to the plunger (111), and the other end is eccentrically mounted on the reduction gear (122). The metering tube (110) has an input tube (112) for conveying additives and an output port (113) connected to the manifold (150); The dispersion mechanism (200) includes a stator (210) and a rotor (220), wherein the stator (210) and the rotor (220) form a first dispersion cavity (230) and a second dispersion cavity (240), and the stator (210) has a plurality of homogenizing plates (212) located between the first dispersion cavity (230) and the second dispersion cavity (240); The homogenizing plate (212) is hollow inside, and the interior of the homogenizing plate (212) is connected to the manifold (150). The homogenizing plate (212) is provided with a plurality of diffusion holes (2121) on the outside. The diffusion holes (2121) and the intersection of the dispersion chamber (230) and the dispersion chamber (240) respectively constitute the mixing region of the catalyst matrix and the additive.

2. The mixing device for catalyst production according to claim 1, characterized in that: The input tube (112) is equipped with an electronic metering valve (1121) for metering additives, and the input tube (112) is equipped with a one-way valve with the conduction direction facing the metering tube (110).

3. A mixing device for catalyst production according to claim 1, characterized in that: The output port (113) is equipped with a one-way valve II with the conduction direction facing the manifold (150).

4. A mixing device for catalyst production according to claim 1, characterized in that: The feeding mechanism (100) further includes an adjustment mechanism (130), which includes an adjustment rod (131), a lead screw (132), a slider (133), and a groove (134). The groove (134) is formed on the reduction gear (122), and the lead screw (132) is disposed inside the groove (134). The slider (133) is threadedly engaged with the lead screw (132) on the outside of the lead screw (132). The adjusting rod (131) is located at the axis of the reduction gear (122), and the end of the adjusting rod (131) is rotatably engaged with the end of the lead screw (132); The swing arm (140) is rotatably mounted on the slider (133).

5. A mixing device for catalyst production according to claim 1, characterized in that: The metering tube (110) is provided with a flushing tube (114) that communicates with the inside of the reactor (400); The flushing pipe (114) is equipped with a solenoid valve (1141).

6. A mixing device for catalyst production according to claim 5, characterized in that: The flushing pipe (114) is equipped with a one-way valve II that has a guiding direction toward the metering pipe (110).

7. A mixing device for catalyst production according to claim 1, characterized in that: The stator (210) is disposed at the bottom of the reactor (400), and the rotor (220) is located inside the stator (210); The stator (210) has multiple slots (211) on its exterior.

8. A mixing device for catalyst production according to claim 7, characterized in that: The impeller (330) is located inside the upper end of the stator (210).

9. A mixing device for catalyst production according to claim 7, characterized in that: The rotor (220) has multiple guide vanes (221) and multiple homogenizing plates (222); The first dispersion chamber (230) is located between the first homogenizing plate (212) and the second homogenizing plate (222), and the second dispersion chamber (240) is located between the first homogenizing plate (212) and the first guide plate (221).

10. A mixing apparatus for catalyst production according to any one of claims 8 or 9, characterized in that: The rotor (220) also has a plurality of guide plates (223) on its top, and the guide plates (223) have the same deflection direction as the blades of the impeller (330).

Images