Mixing device for preparing ruthenium-carbon catalyst

Abstract

The utility model relates to the technical field of mixing devices, and provides a mixing device for preparing a ruthenium-carbon catalyst, which comprises a feed pipe and a discharge pipe which are fixedly communicated with the top of a tank body. Through the mild conical stirrer and accurate stirring direction control, efficient raw material mixing and uniform dispersion of a catalyst precursor are achieved, the stirring force is moderate, particle aggregation or falling is avoided, the stability and activity of a catalyst are ensured, the loading efficiency is improved, meanwhile, damage to catalyst particles is reduced, and the service life of the catalyst is prolonged. The uniformity and the effect of the preparation process are optimized; raw materials can be effectively prevented from being attached to the inner wall of the tank body in the stirring process through the latex scraping plate, the inner wall is kept clean, the uniformity and efficiency in the stirring process are further improved, sliding of the guide sliding rod in the wave sliding rail is increased, the vertical movement effect of the scraping plate is achieved, and the scraping effect of the scraping plate is enhanced; the attached raw materials can be thoroughly removed, so that the effect and the stability of the whole preparation process are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mixing device technical field, specifically, it relates to the mixing device for preparation of ruthenium carbon catalyst. BACKGROUND

[0002] The prior art mixing device for preparing ruthenium carbon catalyst, first, the raw materials needed in the preparation of ruthenium carbon catalyst are added into the mixing device through the feed pipe, the motor is arranged, the motor drives the rotation of the shaft and the threaded rod, the outer threaded sleeve drives the first wedge block to move up and down, due to the contraction force and tension of the spring and the extension spring, when the first wedge block pushes the second wedge block, the support plate drives the push rod to move left and right at the same time, so as to push the U-shaped frame to move left and right, the range of left and right stirring of the stirring blade can be expanded, the ruthenium carbon catalyst is uniformly stirred in the mixing device during preparation, and the purpose of high mixing efficiency is realized.

[0003] The above device has a too large stirring range, which leads to poor stability of ruthenium carbon catalyst during preparation, the main reason is that, during the preparation of ruthenium carbon catalyst, too strong stirring force can lead to unstable combination of ruthenium particles and carbon-based carrier, in addition, too large stirring range can cause the ruthenium particles to fall off or migrate from the carrier surface, especially during the loading stage of the catalyst, the fallen ruthenium particles cannot effectively participate in the catalytic reaction, thereby reducing the stability and activity of the catalyst, therefore, the mixing device for preparing ruthenium carbon catalyst is needed. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a mixing device for preparing ruthenium carbon catalyst, which solves the technical problems mentioned in the background.

[0005] The technical scheme of the utility model is as follows: the mixing device for preparing ruthenium carbon catalyst, including the feed pipe and the discharge pipe fixedly communicated at the top of the tank body, the inside of the tank body is provided with a stirring mechanism, the stirring mechanism includes two stirrers arranged in the inside of the tank body, the top of the tank body is provided with a power assembly for driving the rotation stirring of the two stirrers, and a linkage assembly for unfolding the two stirrers during stirring under the synchronous driving of the power assembly.

[0006] Preferably, the power assembly includes a motor fixed at the top of the tank body, the output end of the motor is fixedly connected with a connecting shaft, the bottom end of the connecting shaft penetrates the inner wall of the tank body and extends to the inside of the tank body, the linkage assembly is fixed at the bottom end of the connecting shaft, and the inside of the tank body is further provided with a cleaning mechanism for scraping off the raw materials adhered to the inner wall of the tank body under the synchronous driving of the connecting shaft.

[0007] Preferably, the linkage assembly comprises a mounting plate fixed at the bottom end of the connecting shaft, two mounting grooves are symmetrically arranged at the two ends of the mounting plate, and two arc-shaped rods are hingedly arranged in the two mounting grooves.

[0008] Preferably, the two stirrers are both hollow conical in shape, and one of the two stirrers has a larger-diameter end facing forward, and the other stirrer has a smaller-diameter end facing forward.

[0009] Preferably, the cleaning mechanism comprises two rubber scrapers symmetrically arranged in the tank body, the back sides of the two rubber scrapers are in contact with the inner wall of the tank body, and the outer wall of the connecting shaft is provided with an auxiliary scraping assembly for rotating and moving the two rubber scrapers up and down.

[0010] Preferably, the auxiliary scraping assembly comprises an extension rod fixed to the outer wall of the connecting shaft, a sliding plate is fixed to the top of the rubber scraper, a rectangular groove is formed in the inner wall of the extension rod for sliding the sliding plate up and down, a guide sliding rod is fixed to one side of the top end of the sliding plate, and an annular wavy sliding rail is formed in the inner wall of the tank body for sliding the guide sliding rod.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. The utility model discloses a moderate stirring force, avoids particle agglomeration or falling off, ensures the stability and activity of the catalyst, improves the loading efficiency, reduces the damage to the catalyst particles, and optimizes the uniformity and effect of the preparation process.

[0013] 2. The rubber scraper can effectively prevent the raw materials from adhering to the inner wall of the tank body during stirring, ensure that the inner wall remains clean, avoid the accumulation or deposition of the raw materials, improve the uniformity and efficiency of the stirring process, increase the sliding of the guide sliding rod in the wavy sliding rail to realize the up-and-down movement effect of the scraper, enhance the scraping effect of the scraper, help to completely remove the adhered raw materials, and thus improve the effect and stability of the overall preparation process. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further explained in detail in connection with the drawings and specific embodiments.

[0015] Figure 1 The utility model discloses a three-dimensional structure schematic view;

[0016] Figure 2 The utility model discloses a stirring mechanism structure schematic view;

[0017] Figure 3The cleaning mechanism structural schematic view is provided for the utility model.

[0018] Figure 4 The cleaning mechanism structural schematic view is provided for the utility model. Figure 3 The amplification structural schematic view of A.

[0019] In the figure: 1, tank body;11, feed pipe;12, discharge pipe;2, stirring mechanism;21, stirrer;22, linkage assembly;221, mounting plate;222, arc-shaped rod;23, power assembly;231, motor;232, connecting shaft;3, cleaning mechanism;31, latex scraper;32, auxiliary scraper assembly;321, extension rod;322, sliding plate;323, guide sliding rod. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described below in a clear and complete manner in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are involved in the protection scope of the utility model.

[0021] The existing device has a large stirring range, which leads to poor stability of the ruthenium carbon catalyst in the preparation process. The main reason is that, in the preparation process of the ruthenium carbon catalyst, the too strong stirring force will lead to unstable combination of ruthenium particles and carbon-based carriers. In addition, the too large stirring range will cause the ruthenium particles to fall off or migrate from the carrier surface, especially in the loading stage of the catalyst. The fallen ruthenium particles cannot effectively participate in the catalytic reaction, thereby reducing the stability and activity of the catalyst. Please refer to Figures 1-4 The embodiment provides a mixing device for preparing a ruthenium carbon catalyst.

[0022] As Figures 1-2As shown, in the preparation process of the ruthenium-carbon catalyst, the stirring intensity should be properly controlled to avoid excessive stirring, so as to ensure that the ruthenium particles are uniformly loaded on the surface of the carbon carrier and reduce the negative effects caused by excessive stirring. In order to achieve the above, the following settings are made. The inside of the tank body 1 is provided with a stirring mechanism 2, which includes two stirrers 21 arranged inside the tank body 1. The two stirrers 21 are both hollow conical in shape. The conical design helps to generate strong flow and shear force, facilitating more uniform dispersion of raw materials, reducing the resistance generated during stirring, and enabling more effective circulation of fluid, so that the raw materials and catalyst precursors can be more uniformly contacted, improving the loading efficiency. One of the two stirrers 21 has its larger-diameter end facing forward, and the other stirrer 21 has its smaller-diameter end facing forward, so that the larger-diameter ends of the two stirrers 21 both face the stirring direction during rotation, effectively improving the stirring efficiency and reducing damage to the particles, optimizing the synergy between the two stirrers 21 and ensuring uniform distribution of the mixture in the container. The top of the tank body 1 is provided with a power assembly 23 for driving the two stirrers 21 to rotate and stir. The power assembly 23 includes a motor 231 fixed to the top of the tank body 1. The output end of the motor 231 is fixed with a connecting shaft 232. The bottom end of the connecting shaft 232 penetrates the inner wall of the tank body 1 and extends into the inside of the tank body 1. A linkage assembly 22 is fixed to the bottom end of the connecting shaft 232 and is driven synchronously by the power assembly 23 to expand the two stirrers 21 during stirring. The linkage assembly 22 includes a mounting plate 221 fixed to the bottom end of the connecting shaft 232. Two mounting grooves are symmetrically formed at the two ends of the mounting plate 221. Two arc-shaped rods 222 are hingedly connected inside the two mounting grooves. The two stirrers 21 are respectively fixed to the bottom ends of the two arc-shaped rods 222. The raw materials enter the tank body 1 through the feed pipe 11. The motor 231 drives the rotational movement of the connecting shaft 232 through the connecting shaft 232. The connecting shaft 232 is connected with the mounting plate 221 to drive the rotation of the two stirrers 21. The two stirrers 21 are connected through the two arc-shaped rods 222. During stirring, the arc-shaped rods 222 expand the stirrers 21 to form an effective stirring path, ensuring the uniformity and gentleness of stirring. Through gentle stirring, the agglomeration of catalyst particles and the shedding of ruthenium particles are avoided, and at the same time, the damage of excessive shear force to the particles is also avoided.

[0023] As Figures 3-4As shown, the inside of the tank body 1 is also provided with a cleaning mechanism 3 for scraping the raw materials adhered to the inner wall of the tank body 1 under the synchronous driving of the connecting shaft 232, the cleaning mechanism 3 comprises two rubber scrapers 31 symmetrically arranged in the inside of the tank body 1, the back side of the two rubber scrapers 31 is in contact with the inner wall of the tank body 1, the outer wall of the connecting shaft 232 is provided with a auxiliary scraping assembly 32 for rotating and moving the two rubber scrapers 31 up and down, the auxiliary scraping assembly 32 comprises an extension rod 321 fixed on the outer wall of the connecting shaft 232, a sliding plate 322 is fixed on the top of the rubber scraper 31, a rectangular groove is formed in the inner wall of the extension rod 321 for the sliding plate 322 to slide up and down, a guide sliding rod 323 is fixed on one side of the top end of the sliding plate 322, and the inner wall of the tank body 1 is provided with an annular wave sliding rail for the guide sliding rod 323 to slide. In order to prevent the raw materials from adhering to the inner wall of the tank body 1 during stirring, the connecting shaft 232 drives the two rubber scrapers 31 to rotate to scrape the raw materials adhered to the inner wall of the tank body 1, in order to further improve the scraping effect, the guide sliding rod 323 slides in the annular wave sliding rail formed in the inner wall of the tank body 1, the guide sliding rod 323 can move up and down during rotation, synchronously driving the sliding plate 322, and then making the rubber scraper 31 fixed on the bottom of the sliding plate 322 produce the same effect, effectively improving the efficiency of scraping the raw materials, ensuring the cleanliness of the inner wall of the tank body 1, avoiding the accumulation or deposition of the raw materials, and further improving the uniformity and efficiency of the preparation process.

[0024] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A mixing device for preparing a ruthenium-carbon catalyst, comprising a feed pipe (11) and a discharge pipe (12) fixedly connected to the top of a tank body (1), characterized in that, The inside of the tank body (1) is provided with a stirring mechanism (2), which comprises two stirrers (21) arranged in the inside of the tank body (1), a power assembly (23) arranged at the top of the tank body (1) for driving the two stirrers (21) to rotate and stir, and a linkage assembly (22) for unfolding the two stirrers (21) during stirring under the synchronous driving of the power assembly (23).

2. The mixing apparatus for preparing a ruthenium-carbon catalyst according to claim 1, wherein The power assembly (23) comprises a motor (231) fixed at the top of the tank body (1), the output end of the motor (231) is fixed with a connecting shaft (232), the bottom end of the connecting shaft (232) penetrates through the inner wall of the tank body (1) and extends to the inside of the tank body (1), the linkage assembly (22) is fixed at the bottom end of the connecting shaft (232), and the inside of the tank body (1) is also provided with a cleaning mechanism (3) for scraping off the raw materials adhered to the inner wall of the tank body (1) under the synchronous driving of the connecting shaft (232).

3. The mixing apparatus for preparing a ruthenium-carbon catalyst according to claim 1, wherein The linkage assembly (22) comprises a mounting plate (221) fixed at the bottom end of the connecting shaft (232), two mounting grooves are symmetrically arranged at the two ends of the mounting plate (221), and two arc-shaped rods (222) are hingedly connected in the two mounting grooves.

4. The mixing apparatus for preparing a ruthenium-carbon catalyst according to claim 1, wherein The two stirrers (21) are both hollow conical in shape, one of the two stirrers (21) has an end with a larger diameter facing forward, and the other stirrer (21) has an end with a smaller diameter facing forward.

5. The mixing apparatus for preparing a ruthenium-carbon catalyst according to claim 2, wherein The cleaning mechanism (3) comprises two rubber scrapers (31) symmetrically arranged in the inside of the tank body (1), the back sides of the two rubber scrapers (31) are in contact with the inner wall of the tank body (1), and the outer wall of the connecting shaft (232) is provided with an auxiliary scraping assembly (32) for rotating and moving the two rubber scrapers (31) up and down.

6. The mixing apparatus for preparing a ruthenium-carbon catalyst according to claim 5, wherein The auxiliary scraping assembly (32) comprises an extension rod (321) fixed to the outer wall of the connecting shaft (232), the top of the rubber scraper (31) is fixed with a sliding plate (322), the inner wall of the extension rod (321) is provided with a rectangular groove for sliding the sliding plate (322) up and down, one side of the top end of the sliding plate (322) is fixed with a guide sliding rod (323), and the inner wall of the tank body (1) is provided with an annular wave sliding rail for sliding the guide sliding rod (323).

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