Spherical catalyst preparation device

Abstract

The utility model relates to the technical field of spherical catalyst preparation, in particular to a spherical catalyst preparation device. The spherical catalyst preparation device comprises a strip extruding mechanism, wherein the strip extruding mechanism is used for processing a catalyst raw material into a plurality of catalyst thin strips which are distributed at intervals; the limiting mechanism is located below the strip extruding mechanism, and the limiting mechanism is provided with a plurality of limiting channels which are isolated from one another and allow the plurality of catalyst thin strips to penetrate through in a one-to-one correspondence mode; and the ball making mechanism is located below the limiting channel, an inlet of the ball making mechanism is located at an outlet of the limiting channel, and the ball making mechanism is used for making the catalyst thin strips penetrating through the limiting channel into spherical catalyst particles. Wherein the catalyst thin strips in each limiting channel are separated before entering the inlet of the ball forming mechanism, so that the adjacent catalyst thin strips are prevented from being contacted and wound together due to the swinging of the ball forming mechanism, thereby avoiding producing catalyst particles with irregular shapes and avoiding the reduction of the product percent of pass.

Description

Technical Field

[0001] The utility model relates to the technical field of spherical catalyst preparation, in particular to a spherical catalyst preparation device. Background Art

[0002] In some preparation processes, the preparation process of the spherical catalyst is as follows: the pre-treated catalyst raw material is extruded into cylindrical catalyst strips, and then the catalyst strips are cut and pelletized to process the catalyst strips into spherical catalyst particles.

[0003] The cutting and pelletizing of catalyst strips is achieved by a pelletizing mechanism. Usually, the pelletizing tool simultaneously cuts and pelletizes multiple catalyst strips arranged at intervals. However, the operation of the pelletizing tool causes the catalyst strips to swing, and the swing of the catalyst strips may cause adjacent catalyst strips to contact and entangle with each other, thereby producing irregularly shaped catalyst particles and reducing the product qualification rate. Utility Model Content

[0004] The utility model aims to overcome the problem in the prior art that adjacent catalyst thin strips may be entangled during the operation of a ball making cutter.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a spherical catalyst preparation device on the one hand, which includes: a strip extrusion mechanism, which is used to process the catalyst raw material into a plurality of catalyst strips distributed at intervals; a limiting mechanism, which is located below the strip extrusion mechanism, and is provided with a plurality of limiting channels which are isolated from each other and allow the plurality of catalyst strips to pass through one by one; and a ball making mechanism, which is located below the limiting channel, and the inlet of the ball making mechanism is located at the outlet of the limiting channel, and the ball making mechanism is configured to make the catalyst strips passing through the limiting channel into spherical catalyst particles.

[0006] In some embodiments, the limiting mechanism includes a connecting plate and a plurality of baffles located below the extrusion mechanism. The plurality of baffles are connected to the same side of the connecting plate along the length direction of the connecting plate, and a limiting channel is defined between every two adjacent baffles.

[0007] In some embodiments, the limiting mechanism further includes a limiting rod, which passes through the plurality of baffles along the arrangement direction of the baffles, and the limiting channel is located between the limiting rod and the connecting plate.

[0008] In some embodiments, the limiting rod is configured to be able to be movably inserted into different positions of the plurality of baffles to adjust the size of the limiting channel.

[0009] In some embodiments, the ball making mechanism includes two ball making tools distributed horizontally at intervals, and the axial direction of the ball making tools is consistent with the arrangement direction of multiple baffles; the bottom of the baffle is close to the ball making mechanism, and the bottom of the baffle is provided with two first avoidance openings for avoiding the two ball making tools respectively.

[0010] In some embodiments, a first guide wheel is provided between the extrusion mechanism and the limiting mechanism, the side of the baffle is close to the first guide wheel, and a second avoidance opening is provided on the side of the baffle in the thickness direction of the connecting plate to avoid the first guide wheel.

[0011] In some embodiments, the extrusion mechanism includes an extrusion mechanism and a barrel for holding catalyst raw materials, the barrel is provided with a feed port and a plurality of discharge holes spaced apart, the extrusion mechanism is used to extrude the catalyst raw materials in the barrel to form a plurality of catalyst strips extending outward from the discharge holes; the interior of the barrel has a retaining area and an extrusion area located above the retaining area, the barrel is provided with a position sensor located at the boundary between the retaining area and the extrusion area; the extrusion mechanism includes an extrusion controller, a pressure rod driver and a pressure rod, the extrusion controller and the pressure rod driver are located outside the barrel, the pressure rod extends from the feed port of the barrel into the extrusion area of ​​the barrel, the pressure rod driver and the position sensor are respectively connected to the extrusion controller signal, and the pressure rod driver can drive the pressure rod to move in the barrel.

[0012] In some embodiments, a hopper is provided at the opening of the barrel.

[0013] In some embodiments, the spherical catalyst preparation device further includes a roller and a roller driver. The roller is located below the ball making mechanism and is capable of receiving the spherical catalyst particles dropped from the ball making mechanism. The roller driver is capable of driving the roller to rotate.

[0014] In some embodiments, the spherical catalyst preparation device further comprises a rolling track, and the rolling track is provided with a slope extending downward from the ball making mechanism to the entrance of the drum.

[0015] The technical solution of the utility model has the following beneficial effects:

[0016] All catalyst strips formed at the strip extrusion mechanism need to pass through all the limiting channels of the limiting mechanism one by one before they can extend to the ball making mechanism. Since all the limiting channels in the limiting mechanism are isolated from each other, the catalyst strips in each limiting channel are isolated before entering the entrance of the ball making mechanism, preventing adjacent catalyst strips from contacting and entangled due to the swinging of the ball making mechanism, thereby avoiding the production of irregularly shaped catalyst particles and avoiding a reduction in product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the operation of a spherical catalyst preparation device in one embodiment of the utility model;

[0018] Figure 2 It is a side view schematic diagram of a limiting mechanism in one embodiment of the utility model;

[0019] Figure 3 It is a top view schematic diagram of a limiting mechanism in one embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the rotation of the ball making tool in one embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of the axial alternating movement of the ball making tool in one embodiment of the utility model;

[0022] Figure 6 It is a schematic diagram of a barrel in one embodiment of the utility model;

[0023] Figure 7 It is a schematic diagram of the operation of a spherical catalyst preparation device in another embodiment of the utility model.

[0024] Description of Reference Numerals

[0025] 1. Strip extrusion mechanism; 11. Extrusion mechanism; 111. Pressure rod; 12. Barrel; 121. Position sensor; 122. Extrusion area; 123. Reserved area; 2. Limiting mechanism; 21. Limiting channel; 22. Connecting plate; 23. Baffle; 24. Limiting rod; 25. Socket; 26. First avoidance; 27. Second avoidance; 3. Ball making mechanism; 31. Ball making tool; 311. Barrel; 312. Cutting teeth; 4. Roller; 41. Roller driver; 5. Rolling track; 51. Slope; 6. First guide wheel; 61. Second guide wheel; 7. Catalyst strips; 8. Spherical catalyst particles. DETAILED DESCRIPTION

[0026] The features and exemplary embodiments of various aspects of the utility model will be described in detail below. In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the utility model, rather than to limit the utility model. For those skilled in the art, the utility model can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the utility model by showing examples of the utility model.

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 7As shown, the utility model provides a spherical catalyst preparation device, which includes a strip extrusion mechanism 1, a limiting mechanism 2 and a ball making mechanism 3. The strip extrusion mechanism 1 is used to process the catalyst raw material into a plurality of catalyst strips 7 that are spaced apart. The limiting mechanism 2 is located below the strip extrusion mechanism 1, and the limiting mechanism 2 is provided with a plurality of limiting channels 21 that are isolated from each other and through which a plurality of catalyst strips 7 pass one by one. The ball making mechanism 3 is located below the limiting channel 21, and the inlet of the ball making mechanism 3 is located at the outlet of the limiting channel 21, and the ball making mechanism 3 is configured to make the catalyst strips 7 that pass through the limiting channel 21 into spherical catalyst particles 8.

[0028] Specifically, the extrusion mechanism 11 can extrude the catalyst raw material to form a plurality of catalyst strips 7 arranged at intervals. These catalyst strips 7 can pass through all the limiting channels 21 of the limiting mechanism 2 one by one, and then extend to the ball making mechanism 3. The ball making mechanism 3 can process the catalyst strips 7 into spherical catalyst particles 8.

[0029] In this embodiment, all catalyst strips 7 formed at the strip extrusion mechanism 1 need to pass through all the limiting channels 21 of the limiting mechanism 2 one by one before extending to the ball making mechanism 3. Since all the limiting channels 21 of the limiting mechanism 2 are isolated from each other, the catalyst strips 7 in each limiting channel 21 are isolated before entering the entrance of the ball making mechanism 3, preventing adjacent catalyst strips 7 from contacting and entangled together due to the swinging of the ball making mechanism 3, thereby avoiding the production of irregularly shaped catalyst particles and avoiding a reduction in product qualification rate.

[0030] like Figures 2 to 3 As shown, in some embodiments of the utility model, the limiting mechanism 2 includes a connecting plate 22 and a plurality of baffles 23 located below the extrusion mechanism 1, the plurality of baffles 23 are connected to the same side of the connecting plate 22 along the length direction L of the connecting plate 22, and a limiting channel 21 is defined between each two adjacent baffles 23.

[0031] Specifically, since all the baffles 23 are spaced apart along the length direction of the connecting plate 22, the limiting channels 21 are also spaced apart along the length direction L of the connecting plate 22, so that the distribution form of the limiting channels 21 can adapt to the arrangement form of the catalyst strips 7. Each catalyst strip 7 is located in a limiting channel 21, and adjacent catalyst strips 7 are separated by the baffles 23 therebetween, so that adjacent catalyst strips 7 can be effectively prevented from being entangled with each other.

[0032] In some embodiments, the connecting plate 22 extends vertically, and all the baffles 23 are vertically connected to the same side of the connecting plate 22 along the length direction of the connecting plate 22, so that the widths of the limiting channels 21 at different heights are the same.

[0033] like Figures 2 to 3 As shown, in some embodiments of the present invention, the limiting mechanism 2 further includes a limiting rod 24 , which passes through the plurality of baffles 23 along the arrangement direction of the baffles 23 , and the limiting channel 21 is located between the limiting rod 24 and the connecting plate 22 .

[0034] Specifically, the baffles 23 on both sides of the limiting channel 21 can limit the swing of the catalyst strips 7 in the left and right directions, and the limiting rods 24 and the connecting plates 22 can limit the swing of the catalyst strips 7 in the front and rear directions, thereby further limiting the swing range of the catalyst strips 7, making the position of the catalyst strips 7 more stable, and facilitating the ball making mechanism 3 to process them into spherical particles.

[0035] like Figures 2 to 3 As shown, in some embodiments of the present invention, the limiting rod 24 is configured to be able to be movably inserted into different positions of the plurality of baffles 23 to adjust the size of the limiting channel 21 .

[0036] Specifically, the baffle 23 is provided with a plurality of jacks 25 distributed at intervals, and the jacks 25 penetrate the baffle 23 along the length direction L of the connecting plate 22. Of course, the thickness direction of the baffle 23 is consistent with the length direction L of the connecting plate 22. These jacks 25 are spaced apart in the length direction or width direction of the baffle 23. For two adjacent baffles 23, the jacks 25 of the two correspond one to one, so that the limit rod 24 can pass through all the baffles 23 in a straight line, so that the limit rod 24 can adjust the position in the length direction or width direction of the baffle 23. When the position of the limit rod 24 needs to be adjusted, the limit rod 24 can be inserted into another group of jacks 25 distributed in the same straight line. On-site personnel can adjust the position of the limit rod 24 according to the diameter of the catalyst strip 7 and the properties of the catalyst strip 7 (such as viscosity and water content, etc.) so that the size of the limit channel 21 is adapted to the catalyst strip 7. Moreover. By adjusting the position of the limiting rod 24 , it is also helpful to make the catalyst strip 7 passing through the limiting channel 21 face the entrance of the ball making tool 31 , so that the ball making tool 31 can process the catalyst strip 7 .

[0037] like Figure 4 and Figure 5 As shown, in some embodiments of the utility model, the ball making mechanism 3 includes two ball making tools 31 horizontally spaced apart, and the axial direction of the ball making tool 31 is consistent with the arrangement direction of multiple baffles 23; the bottom of the baffle 23 is close to the ball making mechanism 3, and the bottom of the baffle 23 is provided with two first avoidance openings 26 for avoiding the two ball making tools 31 respectively.

[0038] Specifically, the ball making mechanism 3 is a common mechanism in the field, and the present invention will not repeat its mechanism and principle. However, in order to make it easier for those skilled in the art to understand the present invention, the present invention briefly introduces the ball making mechanism 3. The ball making mechanism 3 includes a tool driving mechanism and a pair of ball making cutters 31 spaced at a preset interval. The ball making cutter 31 further includes a cylinder 311, and the outer side of the cylinder 311 is provided with a plurality of spaced cutting teeth 312, and all the cutting teeth 312 are distributed in multiple rows and columns. The axial direction of the ball making cutter 31 is also the axial direction of the cylinder 311. These baffles 23 are arranged along the length direction of the connecting plate 22, so the axial direction of the ball making cutter 31 is consistent with the length direction of the connecting plate 22. Driven by the tool driving mechanism, the two ball making cutters 31 can rotate circumferentially and the rotation directions of the two ball making cutters 31 are opposite, and the ball making cutters 31 will also alternately and rapidly reciprocate axially (that is, the movement directions of the two ball making cutters 31 are opposite during the reciprocating movement). When the catalyst strip 7 extends from top to bottom between the two ball-making cutters 31, the rotational movement of the two ball-making cutters 31 can cut the catalyst strip 7 into small pieces. The catalyst small pieces will be temporarily accommodated between the cutting teeth 312. The two ball-making cutters 31 perform alternate axial reciprocating movements. This action can cause the catalyst small pieces to be repeatedly kneaded to form spherical catalyst particles 8.

[0039] In this embodiment, the portion of the catalyst strip 7 close to the ball-making tool 31 is most susceptible to the influence of the ball-making tool 31, so the swing of this portion is the most violent. The ball-making mechanism 3 is arranged close to the limiting mechanism 2, so that the portion with the most violent swing can be controlled to prevent the catalyst strips 7 from being entangled with each other. Based on the above idea, two first avoidance openings 26 for avoiding the two ball-making tools 31 are arranged at the bottom of the baffle 23, and a part of the ball-making tool 31 is located in the first avoidance openings 26, so that the portion of the baffle 23 located between the two first avoidance openings 26 can extend to the entrance between the two ball-making tools 31, thereby allowing the limiting channel 21 to be as close as possible to the entrance between the two ball-making tools 31, so as to prevent the catalyst strips 7 from being entangled with each other due to violent swinging.

[0040] like Figure 1 As shown, in some embodiments of the present invention, a first guide wheel 6 is provided between the extrusion mechanism 1 and the limiting mechanism 2, the side of the baffle 23 in the thickness direction of the connecting plate 22 is close to the first guide wheel 6, and the side of the baffle 23 is provided with a second avoidance opening 27 for avoiding the first guide wheel 6. Figure 1 In the embodiment, the second avoidance opening 27 is arranged on the left side of the baffle plate 23 .

[0041] Specifically, sometimes due to the limitation of the production site, the limiting mechanism 2 can only be arranged far away from the barrel 12. In order to ensure that the catalyst strips 7 can extend into the limiting channel 21 along the preset trajectory and to avoid the catalyst from breaking, a first guide wheel 6 is arranged between the limiting mechanism 2 and the discharge hole of the barrel 12. The catalyst strips 7 extending from the discharge hole enter the limiting channel 21 after passing through the top of the first guide wheel 6. The first guide wheel 6 can also be provided with a plurality of guide grooves spaced along the axial direction of the first guide wheel 6, and each catalyst strip 7 can be accommodated in a guide groove to avoid the catalyst strips 7 from being entangled. Of course, a second guide wheel 61 can also be arranged between the first guide wheel 6 and the discharge port of the barrel 12, so as to further support the catalyst strips 7. A part of the first guide wheel 6 is located in the second avoidance port 27, so that the first guide wheel 6 is as close to the limiting channel 21 as possible, which helps to avoid the catalyst strips 7 from breaking at the entrance of the limiting channel 21.

[0042] Of course, the spherical catalyst preparation device also includes a guide wheel driver, which can drive the first guide wheel 6 and the second guide wheel 61 to rotate, so that the first guide wheel 6 and the second guide wheel 61 can transport the catalyst strips 7 by means of friction.

[0043] like Figure 7 As shown, in other embodiments, the limiting mechanism 2 is located directly below the barrel 12 so that all the limiting channels 21 and all the barrels 12 are vertically opposite to each other.

[0044] like Figure 6 As shown, in some embodiments of the utility model, the extrusion mechanism 1 includes an extrusion mechanism 11 and a barrel 12 for containing catalyst raw materials, the barrel 12 is provided with a feed port and a plurality of discharge holes distributed at intervals, and the extrusion mechanism 11 is used to extrude the catalyst raw materials in the barrel 12 to form a plurality of catalyst thin strips 7 extending outward from the discharge holes. The barrel 12 has a reserved area 123 and an extrusion area 122 located above the reserved area 123 inside, and a position sensor 121 located at the boundary between the reserved area 123 and the extrusion area 122 is provided on the barrel 12; the extrusion mechanism 11 includes an extrusion controller, a pressure rod driver and a pressure rod 111, the extrusion controller and the pressure rod driver are located outside the barrel 12, the pressure rod 111 extends from the feed port of the barrel 12 into the extrusion area 122 of the barrel 12, the pressure rod driver and the position sensor 121 are respectively connected to the extrusion controller signal, and the pressure rod driver can drive the pressure rod 111 to move in the barrel 12.

[0045] Specifically, the barrel 12 includes a cylindrical side wall and a circular bottom wall, a feed port is arranged at the top of the side wall, the bottom wall is connected to the bottom of the side wall, and a plurality of discharge holes arranged along the same straight line are arranged on the bottom wall. The pressure rod driver can drive the pressure rod 111 to move from the extrusion area 122 to the reserved area 123, and the downwardly moving pressure rod 111 can extrude the catalyst raw material of the barrel 12 so that the catalyst raw material forms a catalyst strip 7 at the discharge port. When the position sensor 121 senses that the pressure rod 111 moves to the boundary between the reserved area 123 and the extrusion area 122, the position sensor 121 sends a position signal to the extrusion controller, and the extrusion controller sends a return signal to the pressure rod driver, and the pressure rod driver drives the pressure rod 111 to move upward to the initial position. After the catalyst raw material is added to the extrusion area 122 again, the pressure rod 111 can continue to extrude the catalyst raw material. Since the catalyst raw materials are still retained in the retaining area 123 , when the catalyst strips 7 are extruded again, there is no need to re-tow and distribute the catalyst strips 7 , which helps to improve work efficiency and reduce the risk of strip breakage.

[0046] Of course, the extrusion mechanism 11 may also be in other forms that can meet the use requirements of the utility model, and the utility model will not list them again.

[0047] In other embodiments, the extrusion mechanism 11 may be a screw elevator, which can extrude at a uniform speed and has good precision.

[0048] like Figure 1 and Figure 7 As shown, in some embodiments of the present invention, a hopper is provided at the opening of the barrel 12, and the diameter of the hopper increases gradually from bottom to top.

[0049] like Figure 1 As shown, in some embodiments of the utility model, the spherical catalyst preparation device also includes a roller 4 and a roller driver 41. The roller 4 is located below the ball making mechanism 3 and can receive the spherical catalyst particles 8 falling from the ball making mechanism 3. The roller driver 41 can drive the roller 4 to rotate.

[0050] Specifically, the spherical catalyst particles 8 falling from the ball making mechanism 3 can fall into the drum 4. The drum driver 41 drives the drum 4 to rotate. The rotation of the drum 4 can make the spherical catalyst particles 8 continuously roll in the drum 4, making the spherical catalyst particles 8 more rounded and smooth.

[0051] like Figure 1 As shown, in some embodiments of the present invention, the spherical catalyst preparation device further includes a rolling track 5 , and the rolling track 5 is provided with a slope 51 extending downward from the ball making mechanism 3 to the entrance of the drum 4 .

[0052] Specifically, the slope 51 of the rolling track 5 can make the spherical catalyst particles 8 falling from the ball making mechanism 3 slowly roll into the drum 4. On the one hand, the spherical catalyst particles 8 rolling on the slope 51 can be shaped to be more rounded; on the other hand, the spherical catalyst particles 8 are prevented from being deformed due to falling directly into the drum 4.

[0053] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above are only preferred implementation methods of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the utility model, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A spherical catalyst preparation device, characterized in that: include: An extrusion mechanism (1), wherein the extrusion mechanism (1) is used to process the catalyst raw material into a plurality of catalyst thin strips (7) distributed at intervals; A limiting mechanism (2), the limiting mechanism (2) being located below the strip extrusion mechanism (1), the limiting mechanism (2) being provided with a plurality of limiting channels (21) which are isolated from each other and through which the plurality of catalyst strips (7) pass in a one-to-one correspondence; as well as A ball-making mechanism (3), the ball-making mechanism (3) is located below the limiting channel (21), and the inlet of the ball-making mechanism (3) is located at the outlet of the limiting channel (21), and the ball-making mechanism (3) is configured to make spherical catalyst particles (8) from catalyst strips (7) passing through the limiting channel (21).

2. The spherical catalyst preparation device according to claim 1, characterized in that: The limiting mechanism (2) comprises a connecting plate (22) and a plurality of baffles (23) located below the extrusion mechanism (1); the plurality of baffles (23) are connected to the same side of the connecting plate (22) along the length direction of the connecting plate (22), and a limiting channel (21) is defined between each two adjacent baffles (23).

3. The spherical catalyst preparation device according to claim 2, characterized in that: The limiting mechanism (2) further comprises a limiting rod (24), wherein the limiting rod (24) passes through a plurality of the baffles (23) along the arrangement direction of the baffles (23), and the limiting channel (21) is located between the limiting rod (24) and the connecting plate (22).

4. The spherical catalyst preparation device according to claim 3, characterized in that: The limiting rod (24) is configured to be movably inserted into different positions of the plurality of baffles (23) to adjust the size of the limiting channel (21).

5. The spherical catalyst preparation device according to claim 2, characterized in that: The ball making mechanism (3) comprises two ball making cutters (31) which are horizontally spaced apart, and the axial direction of the ball making cutters (31) is consistent with the arrangement direction of the plurality of baffles (23); The bottom of the baffle plate (23) is close to the ball making mechanism (3), and the bottom of the baffle plate (23) is provided with two first avoidance openings (26) for respectively avoiding the two ball making cutters (31).

6. The spherical catalyst preparation device according to claim 2, characterized in that: A first guide wheel (6) is provided between the extrusion mechanism (1) and the limiting mechanism (2); the side of the baffle plate (23) in the thickness direction of the connecting plate (22) is close to the first guide wheel (6); and a second avoidance opening (27) for avoiding the first guide wheel (6) is provided on the side of the baffle plate (23).

7. The spherical catalyst preparation device according to claim 1, characterized in that: The extrusion mechanism (1) comprises an extrusion mechanism (11) and a barrel (12) for containing catalyst raw materials, the barrel (12) being provided with a feed inlet and a plurality of discharge holes distributed at intervals, the extrusion mechanism (11) being used for extruding the catalyst raw materials in the barrel (12) to form a plurality of catalyst thin strips (7) extending outward from the discharge holes; The barrel (12) has a reserved area (123) and an extrusion area (122) located above the reserved area (123) inside, and a position sensor (121) is provided on the barrel (12) at a boundary between the reserved area (123) and the extrusion area (122); The extrusion mechanism (11) comprises an extrusion controller, a pressure rod driver and a pressure rod (111); the extrusion controller and the pressure rod driver are located outside the barrel (12); the pressure rod (111) extends from the feed port of the barrel (12) into the extrusion area (122) of the barrel (12); the pressure rod driver and the position sensor (121) are respectively connected to the extrusion controller signal; the pressure rod driver can drive the pressure rod (111) to move in the barrel (12).

8. The spherical catalyst preparation device according to claim 7, characterized in that: A hopper is provided at the opening of the barrel (12).

9. The spherical catalyst preparation device according to claim 1, characterized in that: The spherical catalyst preparation device further comprises a roller (4) and a roller driver (41); the roller (4) is located below the ball making mechanism (3) and is capable of receiving the spherical catalyst particles (8) falling from the ball making mechanism (3); and the roller driver (41) is capable of driving the roller (4) to rotate.

10. The spherical catalyst preparation device according to claim 9, characterized in that: The spherical catalyst preparation device further comprises a rolling track (5), wherein the rolling track (5) is provided with a slope (51) extending downwardly from the ball making mechanism (3) to the entrance of the drum (4).

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