Carbon monoxide removal catalyst production device
By integrating a premixing mechanism and a stirring mechanism into the carbon monoxide removal catalyst production unit, the continuous mixing of the solution is achieved by utilizing centrifugal force, thus solving the problem of mixing uniformity and improving the quality of the catalyst.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-22
- Publication Date
- 2026-04-21
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the existing technology, it is difficult to ensure the uniformity of mixing the two solutions during the production process of carbon monoxide removal catalyst, which leads to uneven distribution of active elements in the gel material and affects the quality of the catalyst.
A combination device consisting of a liquid preparation unit, a mixing reactor, and a drying and calcining unit is used. A premixing mechanism and a stirring mechanism are employed to continuously mix the second solution into the first solution using centrifugal force to form a homogeneous mixed solution. The mixture is then stirred and reacted in the stirring mechanism to form a viscous substance, which is then dried and calcined.
It significantly improves the uniformity of distribution of active components in viscous substances and enhances the quality of catalyst powder.
Smart Images
Figure CN121892069A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of catalyst production technology, specifically relating to a carbon monoxide removal catalyst production device. Background Technology
[0002] Carbon monoxide removal catalysts are highly efficient at removing carbon monoxide and are mainly divided into noble metal catalysts and non-noble metal catalysts. Among them, non-noble metal carbon monoxide removal catalysts are catalysts with transition metal oxides such as copper, manganese, and cobalt as the main components, used to catalyze the oxidation of carbon monoxide to carbon dioxide. These catalysts typically involve dissolving high-purity copper acetate and manganese acetate in deionized water to form a homogeneous mixture, then adding sodium hydroxide or sodium carbonate solution while stirring simultaneously. Under alkaline conditions, Cu²⁺… + With Mn² + The co-precipitates as amorphous hydroxides or basic salts, forming a uniformly mixed precursor, which is then dried and calcined to form a catalyst powder with a stable active phase.
[0003] In the production process of carbon monoxide removal catalysts, in addition to strict process parameters such as temperature, ratio, and time, the uniformity of mixing between the two solutions is also crucial to the catalyst quality. Currently, after the two solutions are introduced into the reactor, mixing is solely achieved through a stirring mechanism. However, as the two solutions gradually thicken during the stirring process, it is difficult to guarantee uniform mixing, resulting in uneven distribution of active elements in the gel material and affecting the quality of the carbon monoxide removal catalyst. Summary of the Invention
[0004] This invention provides a carbon monoxide removal catalyst production apparatus, which aims to optimize the uniformity of the distribution of active components in the carbon monoxide removal catalyst and improve the quality of the carbon monoxide removal catalyst.
[0005] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a carbon monoxide removal catalyst production device, comprising a liquid preparation unit, a mixing reactor and a drying and calcining unit connected in sequence; The solution preparation unit is used to prepare the first solution and the second solution according to the process requirements, and to send the first solution and the second solution into the mixing reactor according to the ratio required by the process requirements. The mixing reactor is equipped with a premixing mechanism and a stirring mechanism. The premixing mechanism is used to continuously mix the second solution into the first solution to form a mixed solution which is then discharged into the stirring mechanism. The stirring mechanism is used to continuously stir the mixed solution until the reaction forms a viscous substance. The drying and calcining unit is used to receive viscous substances and dry and calcin them according to process parameters to obtain catalyst powder.
[0006] In one possible implementation, the mixing reactor includes: The vessel body has a discharge valve at the bottom and a first inlet pipe for introducing the first solution and a second inlet pipe for introducing the second solution at the top. The drive shaft is vertically inserted through the center of the vessel and rotatably connected to the vessel. A rotary drive component is fixedly connected to the top wall of the vessel and its output end is connected to the drive shaft; The premixing mechanism is located at the top of the inner cavity of the vessel and is sleeved on the drive shaft. The premixing mechanism has a premixing chamber that is connected to the first liquid inlet pipe and the second liquid inlet pipe respectively. The premixing chamber rotates with the drive shaft so that the first solution is mixed into the second solution under the action of centrifugal force. The area inside the vessel body below the premixing mechanism forms a stirring reaction chamber, and the stirring mechanism is located inside the stirring reaction chamber and connected to the drive shaft. The premixing chamber has a drainage channel that is connected to the stirring reaction chamber. The mixed solution is discharged into the stirring reaction chamber through the drainage channel under the centrifugal force of the premixing chamber.
[0007] In some embodiments, the premixing mechanism includes: The rotating seat is sleeved and fixed on the drive shaft. The top surface of the rotating seat is recessed downward to form a premixing chamber. The premixing chamber is divided into a first annular chamber and a second annular chamber by an isolation ring. The first annular chamber is located outside the second annular chamber and is provided with a drainage channel. The isolation ring has a number of mixing channels for connecting the first annular chamber and the second annular chamber at intervals along its circumferential direction. The fixing bracket is sleeved on the part of the drive shaft located above the rotary seat and rotates with the drive shaft. The fixing bracket is fixedly connected to the inner wall of the vessel body. The sealing cap is located on the top of the premixing chamber and rotates with the rotating seat. The sealing cap is fixed to the fixing frame and has a first tube group that penetrates into the first annular cavity and a second tube group that penetrates into the second annular cavity. The first tube group is connected to the first liquid inlet pipe, and the second tube group is connected to the second liquid inlet pipe.
[0008] For example, the bottom of the first annular cavity is provided with several guide ramps at intervals along its circumference. Each guide ramp forms a mixing tank with the outer annular surface of the isolation ring. Adjacent guide ramps form a liquid outlet tank that communicates with the mixing tank. The guide ramps gradually rise from the bottom of the first annular cavity in the opposite direction of the rotation of the rotary seat, and each guide ramp is inclined downward and provided with a liquid discharge channel.
[0009] For example, the first tube assembly includes a first distribution ring and a plurality of first distribution pipes arranged circumferentially on the first distribution ring; the first distribution ring is connected to the first inlet pipe, and each of the first distribution pipes extends into the mixing tank through the cap.
[0010] In one possible implementation, the second annular cavity is divided into an inner cavity and an outer cavity by a septum disposed therein. The outer cavity is connected to each mixing channel, and the inner cavity is connected to the second tube group. The bottom of the septum has several outlet holes distributed at intervals along its circumference.
[0011] In some embodiments, the second tube assembly includes a second distribution ring and a plurality of second distribution tubes circumferentially disposed on the second distribution ring; the second distribution ring is connected to the second inlet pipe, and each of the second distribution tubes extends into the inner cavity through the cap; the bottom of the inner cavity has a plurality of raised ribs distributed at intervals along its circumference.
[0012] For example, the cap includes: The outer ring cover is rotatably connected to the rotating base and seals the first ring cavity, and is also connected to the fixed frame; The inner ring cover is rotatably connected to the rotating base and seals the inner cavity, and is also connected to the fixed frame; The middle ring cover is fixedly connected to the isolation ring and the spacer, and seals the outer cavity.
[0013] For example, the mixing channel extends tangentially through the isolation ring to the first annular cavity along the cavity wall of the second annular cavity, and the mixing channel gradually narrows from the second annular cavity to the first annular cavity.
[0014] In some embodiments, the liquid preparation unit is provided with a first flow control valve for adjusting the flow rate of the first solution and a second flow control valve for adjusting the flow rate of the second solution.
[0015] The beneficial effects of the carbon monoxide removal catalyst production apparatus provided by this invention are as follows: Compared with the prior art, the carbon monoxide removal catalyst production apparatus of this invention utilizes a liquid preparation unit to prepare a first solution and a second solution according to process requirements, and sends them to different positions in a mixing reactor according to the required ratio. During this process, a premixing mechanism continuously mixes the still-fluid second solution into the first solution, thereby uniformly mixing the first and second solutions to form a mixed solution which is then discharged into a stirring mechanism. During continuous stirring in the stirring mechanism, the mixed solution continuously reacts to form a viscous substance, which is finally discharged from the mixing reactor and enters a drying and calcination unit for drying and calcination to obtain catalyst powder. By integrating the premixing mechanism and the stirring mechanism in the mixing reactor, the first and second solutions can undergo continuous dynamic premixing in the premixing mechanism before being discharged into the stirring mechanism for stirring and mixing reaction. Compared with the prior art's method of simply relying on simultaneous stirring and reaction, this significantly improves the uniformity of the distribution of active components in the viscous substance, thereby improving the quality of the final catalyst powder. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the carbon monoxide removal catalyst production device provided in an embodiment of the present invention; Figure 2 This is a three-dimensional structural diagram of the mixing reactor (perspective view of the reactor body) used in an embodiment of the present invention; Figure 3 This is a schematic diagram of the assembly structure of the premixing mechanism and the stirring mechanism on the drive shaft in an embodiment of the present invention; Figure 4 This is a three-dimensional structural diagram of the premixing mechanism used in an embodiment of the present invention; Figure 5 This is a cross-sectional view of the premixing mechanism used in an embodiment of the present invention. Figure 6 This is a three-dimensional structural diagram of the rotating base used in an embodiment of the present invention; Figure 7 This is a top view of the rotating base used in an embodiment of the present invention.
[0017] In the diagram: 10. Liquid preparation unit; 101. First flow regulating valve; 102. Second flow regulating valve; 20. Mixing reactor; 21. Reactor body; 211. Discharge valve; 212. First inlet pipe; 213. Second inlet pipe; 214. Stirring reaction chamber; 22. Drive shaft; 23. Rotary drive component; 30. Drying and calcining unit; 40. Premixing mechanism; 400. Premixing chamber; 401. First annular chamber; 4011. Discharge channel; 4012. Guide ramp; 4013. Mixing tank; 4014. Discharge tank; 402. Second annular chamber; 40 21. Inner cavity; 4022. Outer cavity; 41. Rotary seat; 411. Isolation ring; 4111. Mixing channel; 412. Spacing sleeve; 4121. Liquid outlet; 413. Rib; 42. Fixing frame; 43. Cover; 431. Outer ring cover; 432. Inner ring cover; 433. Middle ring cover; 50. Stirring mechanism; 51. Stirring blade; 52. Fixed blade; 60. First pipe assembly; 61. First distribution ring; 62. First distribution pipe; 70. Second pipe assembly; 71. Second distribution ring; 72. Second distribution pipe; 80. Centrifugal dehydration unit. Detailed Implementation
[0018] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
[0019] It should be noted that when an element is referred to as being "set on" or "connected to" another element, it can be directly on or indirectly on the other element. It should be understood that the terms "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.
[0020] Please refer to the following: Figures 1 to 7 The present invention will now describe the carbon monoxide removal catalyst production apparatus. The carbon monoxide removal catalyst production apparatus includes a solution preparation unit 10, a mixing reactor 20, and a drying and calcining unit 30 connected in sequence; the solution preparation unit 10 is used to prepare a first solution and a second solution according to process requirements, and to feed the first solution and the second solution into the mixing reactor 20 respectively according to the process requirements ratio.
[0021] The mixing reactor 20 is equipped with a premixing mechanism 40 and a stirring mechanism 50. The premixing mechanism 40 is used to continuously mix the second solution into the first solution to form a mixed solution, which is then discharged into the stirring mechanism 50. The stirring mechanism 50 is used to continuously stir the mixed solution until a viscous substance is formed. The drying and calcining unit 30 is used to receive the viscous substance and dry and calcin it according to the process parameters to obtain catalyst powder.
[0022] It should be noted that in this embodiment, the solution preparation unit 10 can be two parts used to prepare the first solution and the second solution respectively. The first solution and the second solution can be pumped into different positions of the mixing reactor 20 (specifically, the premixing mechanism 40). The solution preparation unit 10 itself is structurally equivalent to a container with a stirring function. For example, high-purity copper acetate and manganese acetate (molar ratio 1:1 to 1:1.5) are dissolved in deionized water to form a homogeneous mixed solution, i.e., the first solution; a sodium hydroxide or sodium carbonate solution with a concentration of 0.5–2 mol / L is used as the second solution.
[0023] It should be noted that the drying and roasting unit in this embodiment can be a continuous rotary heating furnace, which can be configured with two different temperature zones for drying and roasting respectively. The continuous rotary heating furnace is existing technology and will not be described in detail here. In addition, in order to improve the drying and roasting efficiency, a centrifugal dehydration unit 80 can be set before the drying and roasting unit to centrifuge and dehydrate the viscous material discharged from the mixing reactor 20.
[0024] It should be explained that the core of this embodiment lies in the equipment used to process the carbon monoxide removal catalyst, especially the structure of the mixing reactor 20. The process parameters, such as solution ratio, reaction temperature, and time, are all existing technology process parameters. For example, the ratio of the first solution to the second solution is 1:1, the temperature inside the mixing reactor 20 is maintained at 50~60℃, and the temperature of the drying section in the drying and calcining unit 30 is around 150℃ and the temperature of the calcining section is around 600℃.
[0025] The carbon monoxide removal catalyst production apparatus provided in this embodiment, compared with the prior art, utilizes a liquid preparation unit 10 to prepare a first solution and a second solution according to process requirements, and feeds them into different positions of a mixing reactor 20 according to the required ratio. During this process, a premixing mechanism 40 continuously mixes the still-fluid second solution into the first solution, thereby uniformly mixing the first and second solutions to form a mixed solution which is then discharged into a stirring mechanism 50. During continuous stirring in the stirring mechanism 50, the mixed solution continuously reacts to form a viscous substance, which is finally discharged from the mixing reactor 20 and enters a drying and calcining unit 30 for drying and calcination to obtain catalyst powder. By integrating the premixing mechanism 40 and the stirring mechanism 50 into the mixing reactor 20, the first and second solutions can undergo continuous dynamic premixing in the premixing mechanism 40 before being discharged into the stirring mechanism 50 for stirring and mixing reaction. Compared with the prior art's method of simply relying on simultaneous stirring and reaction, this significantly improves the uniformity of the distribution of active components in the viscous substance, thereby improving the quality of the final catalyst powder.
[0026] In some embodiments, see Figures 2 to 5 The mixing reactor 20 includes a reactor body 21, a drive shaft 22, and a rotary drive component 23. The bottom of the reactor body 21 is provided with a discharge valve 211, and the top is provided with a first inlet pipe 212 for introducing a first solution and a second inlet pipe 213 for introducing a second solution. The drive shaft 22 is vertically inserted through the center of the reactor body 21 and is rotatably connected to the reactor body 21. The rotary drive component 23 is fixedly connected to the top wall of the reactor body 21 and its output end is connected to the drive shaft 22.
[0027] The premixing mechanism 40 is located at the top of the inner cavity 4021 of the vessel body 21 and is sleeved on the drive shaft 22. The premixing mechanism 40 has a premixing chamber 400 that is connected to the first liquid inlet pipe 212 and the second liquid inlet pipe 213 respectively. The premixing chamber 400 rotates with the drive shaft 22 so that the first solution is mixed into the second solution under the action of centrifugal force.
[0028] The area inside the vessel body 21 below the premixing mechanism 40 forms a stirring reaction chamber 214. The stirring mechanism 50 is located inside the stirring reaction chamber 214 and connected to the drive shaft 22. The premixing chamber 400 has a drain channel 4011 that communicates with the stirring reaction chamber 214. Under the centrifugal force of the premixing chamber 400, the mixed solution is discharged into the stirring reaction chamber 214 through the drain channel 4011.
[0029] In this embodiment, the first inlet pipe 212 is farther from the center of the premixing chamber 400 than the second inlet pipe 213. Based on this, the first solution enters the premixing chamber 400 through the first inlet pipe 212 and the second solution enters the premixing chamber 400 through the second inlet pipe 213. Since the premixing chamber 400 can rotate with the drive shaft 22, it drives the first and second solutions entering it to rotate and generate centrifugal force. This causes the second solution to continuously mix with the first solution to form a mixed solution. At this time, the mixed solution is still in a dilute flow state with good fluidity. Therefore, it can be thrown out from the drain channel 4011 and enter the stirring reaction chamber 214 by means of the rotational centrifugal force. Then, it is continuously stirred by the stirring mechanism 50 in the stirring reaction chamber 214 and gradually forms a viscous substance. Finally, it is discharged after the discharge valve 211 is opened.
[0030] The premixing mechanism 40 and the stirring mechanism 50 are connected to the drive shaft 22. Only one rotary drive component 23, such as a motor, is needed to meet the dual power requirements of centrifugal premixing and stirring. This can improve the compactness of the structure and the dynamic continuity of the mixed solution. By continuously mixing the second solution into the first solution in the premixing chamber 400 based on centrifugal force, the mixing uniformity of the two can be improved, thereby improving the uniformity of the distribution of active ingredients in the final catalyst powder.
[0031] Specifically, such as Figure 2 and Figure 3 As shown, the stirring mechanism 50 includes multiple sets of stirring blades 51 spaced vertically apart, and several fixed blades 52 circumferentially spaced on the periphery of the stirring reaction chamber 214. The stirring blades 51 drive the mixed solution to move within the stirring reaction chamber 214, while the fixed blades 52 create obstruction and disturbance to the mixed solution, thereby improving the uniformity of the mixing.
[0032] As one specific embodiment of the premixing mechanism 40 described above, please refer to Figure 4 and Figure 5The premixing mechanism 40 includes a rotating base 41, a fixed frame 42, and a cover 43. The rotating base 41 is sleeved and fixed on the drive shaft 22. The top surface of the rotating base 41 is recessed downward to form a premixing cavity 400. The premixing cavity 400 is divided into a first annular cavity 401 and a second annular cavity 402 by an isolation ring 411. The first annular cavity 401 is located outside the second annular cavity 402 and is provided with a drain channel 4011. The isolation ring 411 has a plurality of mixing channels 4111 distributed at intervals along its circumferential direction to connect the first annular cavity 401 and the second annular cavity 402.
[0033] The fixing frame 42 is sleeved on the part of the drive shaft 22 located above the rotating seat 41 and rotates in cooperation with the drive shaft 22. The fixing frame 42 is fixedly connected to the inner wall of the vessel body 21. The sealing cover 43 is located on the top of the premixing chamber 400 and rotates in cooperation with the rotating seat 41. The sealing cover 43 is fixed to the fixing frame 42 and is provided with a first tube group 60 that penetrates into the first annular cavity 401 and a second tube group 70 that penetrates into the second annular cavity 402. The first tube group 60 is connected to the first liquid inlet pipe 212 and the second tube group 70 is connected to the second liquid inlet pipe 213.
[0034] The center of the rotating base 41 and the drive shaft 22 can be connected by a spline. Rollers can be set on the outer periphery of the rotating base 41 to form a rolling fit with the inner peripheral wall of the vessel body 21. This allows the rotating base 41 to rotate synchronously with the drive shaft 22, and the rotating base 41 to form radial support for the drive shaft 22, thereby improving the rotational stability of the drive shaft 22.
[0035] The fixing frame 42 is fixed to the inner wall of the vessel body 21. The center of the fixing frame 42 can be rotated with the drive shaft 22 by installing a bearing. The function of the fixing frame 42 is to provide a fixed base for the cover 43 and to form radial support for the drive shaft 22. This prevents the drive shaft 22 from bending and deforming due to the increased resistance of the stirring mechanism 50 after the mixed solution thickens, thereby improving the connection structure strength and rotational stability of the drive shaft 22.
[0036] The cap 43 seals the premixing chamber 400 and keeps it stationary, allowing the first tube assembly 60 and the second tube assembly 70 to pass directly through the cap 43 and enter the first annular cavity 401 and the second annular cavity 402 respectively, thus facilitating liquid intake. The first solution entering the first annular cavity 401 through the first tube assembly 60 gradually moves with the first annular cavity 401, and the second solution entering the second annular cavity 402 through the second tube assembly 70 also gradually moves with the second annular cavity 402. Considering that the first and second solutions are both relatively stationary in the circumferential direction when entering the moving annular cavities, there is a speed difference between the movement speed of the first and second solutions and the rotation speed of the rotor 41, and the first and second solutions are in a state of gradually accelerating to catch up with the speed of the rotor 41.
[0037] When the second solution moves relative to the second annular cavity 402 to the position of the mixing channel 4111, it will enter the mixing channel 4111 under the action of centrifugal force, and then be thrown into the first annular cavity 401 from the mixing channel 4111, thereby realizing the centrifugal mixing of the second solution and the first solution. After the second solution is mixed with the first solution, as the movement speed gradually increases and the centrifugal force becomes greater, it will eventually be thrown out of the first annular cavity 401 through the drain channel 4011 and enter the stirring reaction chamber 214. Through this continuous centrifugal mixing process, the second solution and the first solution can be fully and uniformly mixed, thereby improving the uniformity of the distribution of active ingredients in viscous substances, and thus improving the quality of the final powdered catalyst.
[0038] For some possible implementations, please refer to [link / reference]. Figures 5 to 7 The bottom of the first annular cavity 401 is provided with several guide ramps 4012 distributed at intervals along its circumference. Each guide ramp 4012 together forms a mixing tank 4013 with the outer annular surface of the isolation ring 411. Adjacent guide ramps 4012 form a liquid outlet tank 4014 that communicates with the mixing tank 4013. The guide ramps 4012 gradually rise from the bottom of the first annular cavity 401 in the opposite direction of the rotation of the rotating seat 41, and each guide ramp 4012 is provided with a downwardly inclined drainage channel 4011.
[0039] The first annular cavity 401 is divided into two concentric regions with different heights based on the guide ramp 4012. The inner region is the mixing tank 4013, and the outer region is a continuously undulating structure. When the first solution enters the first annular cavity 401, it first enters the mixing tank 4013. The second solution enters the mixing tank 4013 through the mixing channel 4111 and continuously mixes with the first solution to form a mixed solution. As the movement speed and centrifugal force of the mixed solution in the mixing tank 4013 increase, the mixed solution will be continuously thrown into the outlet tank 4014 and enter the discharge channel 4011 along the guide ramp 4012, thereby realizing the centrifugal mixing of the first solution and the second solution and the discharge of the mixed solution from the first annular cavity 401 into the stirring reaction chamber 214.
[0040] By using a flow-guiding ramp 4012 within the first annular cavity 401 and positioning the drain channel 4011 on the ramp 4012, the situation where the first solution enters the first annular cavity 401 but is discharged before mixing with the second solution can be avoided. The advantage of this process is that the dynamic mixing of the first and second solutions under centrifugal force improves the thoroughness and uniformity of the mixing, thereby promoting the uniform distribution of active ingredients in the viscous substance.
[0041] Specifically, such as Figure 4 and Figure 5As shown, in this embodiment, the first pipe group 60 includes a first distribution ring 61 and a plurality of first distribution pipes 62 circumferentially spaced on the first distribution ring 61; the first distribution ring 61 is connected to the first inlet pipe 212, and each of the first distribution pipes 62 passes through the cap 43 and extends into the mixing tank 4013.
[0042] After entering the first distribution ring 61 through the first inlet pipe 212, the first solution is distributed to each of the first distribution pipes 62. The first solution is evenly distributed to different circumferential areas of the mixing tank 4013 through each of the first distribution pipes 62. This not only avoids the first solution from falling directly into the drain channel 4011 before being mixed with the second solution, thus affecting the mixing uniformity, but also improves the uniformity of the first solution entering the mixing tank 4013, thereby improving the mixing uniformity of the second solution and the first solution.
[0043] In some embodiments, such as Figures 5 to 7 As shown, the second annular cavity 402 is divided into an inner cavity 4021 and an outer cavity 4022 by a spacer 412 disposed therein. The outer cavity 4022 is connected to each mixing channel 4111, and the inner cavity 4021 is connected to the second tube group 70. The bottom of the spacer 412 has a number of liquid outlet holes 4121 distributed circumferentially.
[0044] The second solution enters the inner cavity 4021 through the second tube assembly 70, and then flows into the outer cavity 4022 through the various outlet holes 4121 of the partition sleeve 412, thus ensuring a consistent amount of the second solution in all circumferential regions of the outer cavity 4022. Considering that the inner cavity 4021 is closer to the center of the rotor 41 and has a smaller centrifugal force, the liquid level in the inner cavity 4021 can be maintained above the outlet holes 4121, and then the second solution flows evenly into the outer cavity 4022 through the various outlet holes 4121. The function of the inner cavity 4021 is to evenly distribute the second solution into the outer cavity 4022, so that the second solution can be evenly thrown into each mixing channel 4111 in the outer cavity 4022 based on centrifugal force, avoiding the difference in the amount of the second solution entering each mixing channel 4111, which would affect the mixing uniformity with the first solution.
[0045] Optionally, please refer to Figure 4 and Figure 5 In this embodiment, the second pipe group 70 includes a second distribution ring 71 and a plurality of second distribution pipes 72 circumferentially disposed on the second distribution ring 71; the second distribution ring 71 is connected to the second inlet pipe 213, and each second distribution pipe 72 passes through the cap 43 and extends into the inner cavity 4021; the bottom of the inner cavity 4021 is provided with a plurality of ribs 413 distributed circumferentially.
[0046] The second solution can be evenly distributed to each of the second distribution pipes 72 through the second distribution ring 71, and then the second solution can be evenly introduced into different areas of the inner cavity 4021 through each of the second distribution pipes 72, thereby ensuring the uniformity of liquid entry into different areas of the inner cavity 4021. On this basis, in order to ensure that the second solution can obtain sufficient centrifugal force immediately after entering the inner cavity 4021, a rib 413 is provided at the bottom of the inner cavity 4021 in this embodiment. The rib 413 can prevent the second solution from sliding relative to the bottom of the inner cavity 4021, thereby driving the second solution to obtain sufficient movement speed upon entering the inner cavity 4021 and being thrown into the outer cavity 4022 from each liquid outlet 4121. After entering the outer cavity 4022, due to the initial velocity advantage, it can be quickly thrown into each mixing channel 4111, and then into the first annular cavity 401 to mix with the first solution, avoiding the second solution not being able to be thrown out in time, which would affect the uniformity of mixing with the first solution.
[0047] It should be understood that in this embodiment, the cap 43 can be a single-piece structure or a separate structure. When the cap 43 adopts a separate structure, please refer to [link to relevant documentation]. Figure 5 It includes an outer ring cover 431, an inner ring cover 432, and a middle ring cover 433; the outer ring cover 431 is rotatably connected to the rotating seat 41 and covers the first annular cavity 401 of 43, and is connected to the fixing frame 42; the inner ring cover 432 is rotatably connected to the rotating seat 41 and covers the inner cavity 4021 of 43, and is connected to the fixing frame 42; the middle ring cover 433 is fixedly connected to the isolation ring 411 and the spacer 412, and covers the outer cavity 4022 of 43.
[0048] Considering the liquid inlet requirements of the first annular cavity 401 and the inner cavity 4021, the outer ring cover 431 and the inner ring cover 432 are set independently, which makes it easy to fix them on the fixing frame 42 and connect them to the first liquid inlet pipe 212 and the first pipe group 60, the second liquid inlet pipe 213 and the second pipe group 70 respectively; while the outer cavity 4022 can be directly fixed by fitting and fixing it to the isolation ring 411 and the spacer 412, which can improve the reliability and sealing of the middle ring cover 43 of the outer cavity 4022.
[0049] For example, such as Figure 7 As shown, the mixing channel 4111 extends tangentially through the isolation ring 411 along the cavity wall of the second annular cavity 402 to the first annular cavity 401, and the mixing channel 4111 gradually narrows from the second annular cavity 402 to the first annular cavity 401. The tangential extension of the mixing channel 4111 along the second annular cavity 402 allows the second solution to be smoothly thrown into the mixing channel 4111 in the second annular cavity 402, thereby improving the smoothness of the second solution entering the first annular cavity 401 from the second annular cavity 402, and thus improving the stability and efficiency of the second solution mixing with the first solution.
[0050] It should be noted that you should refer to [link / reference]. Figure 1In this embodiment, the liquid preparation unit 10 is equipped with a first flow regulating valve 101 for regulating the flow rate of the first solution and a second flow regulating valve 102 for regulating the flow rate of the second solution. The first flow regulating valve 101 and the second flow regulating valve 102 can flexibly adjust the flow rates of the first solution and the second solution according to process requirements, thereby adjusting the mixing ratio of the first solution and the second solution and improving process adaptability.
[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A device for producing a carbon monoxide removal catalyst, characterized in that, It includes a liquid preparation unit, a mixing reactor, and a drying and calcining unit connected in sequence; The solution preparation unit is used to prepare the first solution and the second solution according to the process requirements, and to feed the first solution and the second solution into the mixing reactor according to the ratio required by the process requirements. The mixing reactor is equipped with a premixing mechanism and a stirring mechanism. The premixing mechanism is used to continuously mix the second solution into the first solution to form a mixed solution, which is then discharged into the stirring mechanism. The stirring mechanism is used to continuously stir the mixed solution until a viscous substance is formed by the reaction. The drying and calcining unit is used to receive the viscous substance and dry and calcin it according to process parameters to obtain catalyst powder.
2. The carbon monoxide removal catalyst production apparatus as described in claim 1, characterized in that, The mixing reactor includes: The vessel body has a discharge valve at the bottom and a first inlet pipe for introducing the first solution and a second inlet pipe for introducing the second solution at the top. A drive shaft is vertically inserted through the center of the vessel body and rotatably connected to the vessel body; A rotary drive component is fixedly connected to the top wall of the vessel body and its output end is connected to the drive shaft; The premixing mechanism is located at the top of the inner cavity of the vessel and is sleeved on the drive shaft. The premixing mechanism has a premixing chamber that is connected to the first liquid inlet pipe and the second liquid inlet pipe respectively. The premixing chamber rotates with the drive shaft so that the first solution is mixed into the second solution under the action of centrifugal force. The region inside the vessel body located below the premixing mechanism forms a stirring reaction chamber, and the stirring mechanism is located inside the stirring reaction chamber and connected to the drive shaft; The premixing chamber has a drainage channel that communicates with the stirring reaction chamber. The mixed solution is discharged into the stirring reaction chamber through the drainage channel under the centrifugal force of the premixing chamber.
3. The carbon monoxide removal catalyst production apparatus as described in claim 2, characterized in that, The premixing mechanism includes: A rotating base is sleeved and fixed on the drive shaft. The top surface of the rotating base is recessed downward to form the premixing chamber. The premixing chamber is divided into a first annular chamber and a second annular chamber by an isolation ring. The first annular chamber is located outside the second annular chamber and is provided with the drainage channel. The isolation ring has a plurality of mixing channels for connecting the first annular chamber and the second annular chamber at intervals along its circumferential direction. A fixing frame is sleeved on the part of the drive shaft located above the rotating base and rotates with the drive shaft. The fixing frame is fixedly connected to the inner wall of the vessel body. A sealing cap is provided on the top of the premixing chamber and rotates in cooperation with the rotating seat. The sealing cap is fixed to the fixing frame and is provided with a first tube group that penetrates the first annular cavity and a second tube group that penetrates the second annular cavity. The first tube group is connected to the first liquid inlet pipe, and the second tube group is connected to the second liquid inlet pipe.
4. The carbon monoxide removal catalyst production apparatus as described in claim 3, characterized in that, The bottom of the first annular cavity is provided with several flow-guiding ramps spaced apart along its circumferential direction. Each of the flow-guiding ramps forms a mixing tank with the outer annular surface of the isolation ring. Adjacent flow-guiding ramps form a liquid outlet tank that communicates with the mixing tank. The flow-guiding ramps gradually rise from the bottom of the first annular cavity in the opposite direction of the rotation of the rotating seat, and each flow-guiding ramp is provided with a downwardly inclined drainage channel.
5. The carbon monoxide removal catalyst production apparatus as described in claim 4, characterized in that, The first tube assembly includes a first distribution ring and a plurality of first distribution tubes circumferentially spaced on the first distribution ring; the first distribution ring is connected to the first inlet pipe, and each of the first distribution tubes passes through the cap and extends into the mixing tank.
6. The carbon monoxide removal catalyst production apparatus as described in claim 3, characterized in that, The second annular cavity is divided into an inner cavity and an outer cavity by a spacer disposed therein. The outer cavity is connected to each of the mixing channels, and the inner cavity is connected to the second tube group. The bottom of the spacer has a number of liquid outlet holes distributed at intervals along its circumference.
7. The carbon monoxide removal catalyst production apparatus as described in claim 6, characterized in that, The second tube assembly includes a second distribution ring and a plurality of second distribution tubes circumferentially disposed on the second distribution ring; the second distribution ring is connected to the second inlet pipe, and each of the second distribution tubes passes through the cap and extends into the inner cavity; the bottom of the inner cavity is provided with a plurality of raised ribs spaced apart along its circumference.
8. The carbon monoxide removal catalyst production apparatus as described in claim 6, characterized in that, The cap includes: The outer ring cover is rotatably connected to the rotating base and seals the first ring cavity, and is also connected to the fixing frame; The inner ring cover is rotatably connected to the rotating base and seals the inner cavity, and is also connected to the fixing frame; The middle ring cover is fixedly connected to the isolation ring and the spacer, and seals the outer cavity.
9. The carbon monoxide removal catalyst production apparatus as described in claim 3, characterized in that, The mixing channel extends tangentially through the isolation ring to the first annular cavity along the cavity wall of the second annular cavity, and the mixing channel gradually narrows from the second annular cavity to the first annular cavity.
10. The carbon monoxide removal catalyst production apparatus according to any one of claims 1-9, characterized in that, The solution preparation unit is equipped with a first flow regulating valve for adjusting the flow rate of the first solution and a second flow regulating valve for adjusting the flow rate of the second solution.