A ball rolling machine for forming catalyst carrier and a ball rolling preparation method

Abstract

The present invention provides a catalyst carrier forming rolling ball machine and a rolling ball preparation method, comprising a frame, a rotating disk is arranged on the frame, a catalyst is placed in the rotating disk, a screening component is arranged on the rotating disk, the screening component comprises a screen cylinder, a through groove is arranged on the front side of the screen cylinder along the rotating direction of the rotating disk, the rotating disk drives the screen cylinder to rotate to dig out the catalyst, and through the setting of the screen cylinder, qualified spherical catalysts can be screened out from the catalyst during the preparation process of the spherical catalyst, so as to avoid the qualified spherical catalysts continuing to roll in the rotating disk and causing the spherical catalysts to become larger and larger, and at the same time, screening out the qualified spherical catalysts can avoid affecting the unformed spherical catalysts, and through the setting of the screen cylinder, the spherical catalysts can be separated from the preparation equipment once they are prepared and qualified, thereby reducing the subsequent separate screening steps, shortening the preparation time of the spherical catalysts, and improving the preparation efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of catalyst preparation, in particular to a catalyst carrier forming ball rolling machine and a ball rolling preparation method. Background Art

[0002] Catalysts are substances that increase the rate of a chemical reaction without being consumed. They lower the activation energy of a reaction by providing an alternative reaction pathway, allowing the reaction to proceed at a lower energy level.

[0003] In industrial production, some catalysts are in powder form, some are in columnar form, some are spherical, and some are in flake form. In the actual catalyst preparation process, the preparation procedures for different types of catalysts are also very different. Spherical catalysts are often processed using the rolling ball process. The rolling ball process is to put dry powder into a rotating inclined turntable and slowly spray the adhesive. Due to the action of capillary suction, the wetted local powder first bonds to form very small particles that become nuclei. As the turntable continues to move, the nuclei gradually grow and become spheres.

[0004] However, the ball rolling machine cannot guarantee that all catalysts can be uniformly formed into spherical particles during preparation. After preparation, the spherical particles are of different sizes. Therefore, an additional screening step is required to screen all the prepared spherical particles before subsequent processing. The unqualified spherical particles after screening need to be re-prepared, which increases the time for catalyst preparation and has low preparation efficiency. Summary of the invention

[0005] Based on this, it is necessary to provide a catalyst carrier forming ball rolling machine and ball rolling preparation method to address the problem of uniform spherical particle size during the current preparation of spherical catalysts.

[0006] The above purpose is achieved through the following technical solutions:

[0007] A ball rolling machine for forming a catalyst carrier, comprising:

[0008] A frame, on which a rotating disk is tiltedly arranged, in which the catalyst is placed, and the rotating disk rotates around its own axis to drive the catalyst to roll and form;

[0009] A screening assembly, the screening assembly comprising a screen drum and a sliding rod, one end of the sliding rod is arranged near the center of the rotating disk and the sliding rod is distributed along the radial direction thereof, the screen drum is fixed on the other end of the sliding rod, the screen drum is inclined toward the axis of the rotating disk, and a through groove is provided on the screen drum at a position on the front side of the rotating direction of the rotating disk;

[0010] The rotating disk is configured to drive the sieve drum to dig out the catalyst when the rotating disk rotates, and the sieve drum screens out the qualified catalyst;

[0011] A material receiving assembly is used to receive the qualified catalyst screened out by the screen cylinder.

[0012] Furthermore, the sliding rod can move radially along the rotating disk to drive the sieve drum to move radially along the rotating disk. An adjusting component is provided between the sliding rod and the rotating disk. The adjusting component adjusts the sliding rod to drive the sieve drum to move radially along the rotating disk to adjust the amount of catalyst excavated by the sieve drum. The amount of catalyst excavated by the sieve drum is negatively correlated with the distance between the sieve drum and the edge of the rotating disk.

[0013] Furthermore, the adjustment assembly includes an adjustment disk, the adjustment disk is coaxially rotatably arranged on the rotating disk, and the adjustment disk is provided with a track for the sliding rod to slide radially along the rotating disk;

[0014] A guide plate is coaxially and fixedly arranged on the rotating plate, and an inclined slot is provided on the guide plate. In the rotating direction of the rotating plate, one end of the inclined slot close to the edge of the rotating plate is located in front of one end of the inclined slot close to the center of the rotating plate, and one end of the sliding rod away from the screen drum is slidably arranged in the inclined slot;

[0015] When the adjusting disk is configured to rotate relative to the rotating disk in the opposite direction, the adjusting disk drives the sliding rod to move away from the edge of the rotating disk radially along the rotating disk; when the adjusting disk rotates in the same direction as the rotating disk and the speed is greater than the rotation speed of the rotating disk, the adjusting disk drives the sliding rod to approach the edge of the rotating disk radially along the rotating disk.

[0016] Further, the adjusting disk has an opening at the center, and the inner circumference of the opening has a slide groove, a first adjusting plate is slidably arranged in the slide groove, and a second adjusting plate is fixedly arranged on the inner circumference of the opening, and in the rotation direction of the rotating disk, the second adjusting plate is located in front of the first adjusting plate, and an elastic member is connected between the first adjusting plate and the second adjusting plate;

[0017] A connecting sleeve with a key groove inside is provided at the center position of the rotating disk, a top pressure plate is inserted into the connecting sleeve, a key shaft is fixedly provided at the center of the top pressure plate, the key shaft and the connecting sleeve are axially slidably matched, a wedge block is provided on the top pressure plate, the wedge block abuts against one end of the first adjustment plate away from the elastic member, the top pressure plate approaches the rotating disk to push the first adjustment plate to slide in the slide groove along the rotation direction of the rotating disk.

[0018] Furthermore, the material receiving assembly includes a conveyor belt and a support plate, a support frame is telescopically arranged on the support plate, and the conveyor belt is wound around the support frame. The molded catalyst is transported by the conveyor belt. When the conveyor belt transports more molded catalyst, the support frame moves downward to push the top pressure plate.

[0019] Furthermore, there are multiple sliding rods and sieve cylinders, and the multiple sliding rods and sieve cylinders are arranged in a circular array on the rotating disk.

[0020] Furthermore, a driving assembly is provided on the frame, and the driving assembly is used to drive the rotating disk to rotate.

[0021] Furthermore, the driving assembly includes a driving motor and a transmission shaft, the driving motor is coaxially connected to the transmission shaft, and the other end of the transmission shaft is connected to the rotating disk.

[0022] Furthermore, the frame includes a horizontal plate and an inclined plate, the two ends of the horizontal plate and the inclined plate are hinged, and the other end is hinged by a telescopic cylinder, and the telescopic cylinder can adjust the inclination angle of the inclined plate by telescoping.

[0023] The present invention also provides a method for preparing a catalyst carrier-shaped rolling ball, comprising the following specific steps:

[0024] S100: Mix the catalyst powder and the binder evenly according to a certain proportion;

[0025] S200: adding the uniformly mixed catalyst powder and binder into the ball rolling machine;

[0026] S300: Start the ball rolling machine to prepare the spherical catalyst.

[0027] The beneficial effects of the present invention are:

[0028] The present invention arranges a sieve cylinder so that qualified spherical catalysts can be screened out from catalysts during the preparation process of the spherical catalysts, thereby preventing the qualified spherical catalysts from continuing to roll in the rotating disk and causing the spherical catalysts to become larger and larger. At the same time, screening out the qualified spherical catalysts can avoid affecting the unformed spherical catalysts. Moreover, by arranging the sieve cylinder, the spherical catalysts can be separated from the preparation equipment once they are prepared to be qualified, thereby reducing the subsequent separate screening steps, shortening the preparation time of the spherical catalysts, and improving the preparation efficiency.

[0029] The present invention can adjust the amount of catalyst dug by the screen drum by arranging the adjustment component, thereby reducing the degree of dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1A schematic structural diagram of a ball rolling machine for forming a catalyst carrier provided in one embodiment of the present invention;

[0031] Figure 2 for Figure 1 An exploded view of a ball rolling machine for forming a catalyst carrier provided in one embodiment;

[0032] Figure 3 An exploded view of a rotating disk, a screening assembly and an adjusting assembly of a ball rolling machine for forming a catalyst carrier provided in one embodiment of the present invention;

[0033] Figure 4 for Figure 3 A partial enlarged view of a ball rolling machine X for forming a catalyst carrier provided in an embodiment;

[0034] Figure 5 for Figure 1 A left side view of a ball rolling machine for forming a catalyst carrier provided in an embodiment;

[0035] Figure 6 for Figure 5 A cross-sectional view along AA of a ball rolling machine for forming a catalyst carrier provided in an embodiment;

[0036] Figure 7 A schematic structural diagram of a top pressure plate of a ball rolling machine for forming a catalyst carrier provided in one embodiment of the present invention.

[0037] in:

[0038] 100, frame; 110, horizontal plate; 120, inclined plate; 121, support plate; 130, rotating plate; 140, telescopic cylinder;

[0039] 200, screening assembly; 210, screen cylinder; 211, screen hole; 212, through slot; 220, sliding rod; 221, protrusion;

[0040] 300, adjustment assembly; 310, adjustment plate; 311, track; 312, opening; 313, slide groove; 314, first adjustment plate; 315, second adjustment plate; 316, elastic member; 320, guide plate; 321, inclined groove; 330, connecting sleeve; 331, keyway; 340, top pressure plate; 341, key shaft; 342, wedge block; 343, inclined surface;

[0041] 400, driving assembly; 410, driving motor; 420, transmission shaft;

[0042] 500, material receiving assembly; 510, conveyor belt; 520, support frame; 530, support plate; 540, telescopic rod. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0044] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0045] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0046] Refer to the following Figure 1-Figure 7 To describe a ball rolling machine for catalyst carrier molding provided in this application.

[0047] A catalyst carrier forming ball rolling machine, suitable for preparing spherical catalysts, comprises a frame 100, a rotating disk 130 is tiltedly arranged on the frame 100, the rotating disk 130 is used to hold powder and adhesive for preparing spherical catalysts, and the powder rolls in the rotating disk 130 when the rotating disk 130 rotates. The specific rotation direction is as follows: Figure 3 In the direction indicated by the middle arrow, due to the action of capillary suction, the local catalyst of the adhesive first adheres to form very small particles that become nuclei. As the turntable continues to move, the nuclei gradually grow larger and become spherical catalysts.

[0048] The rotating disk 130 is provided with a screening assembly 200, which is used to screen out the prepared spherical catalyst. The screening assembly 200 includes a screen drum 210 and a sliding rod 220. One end of the sliding rod 220 is arranged near the middle of the rotating disk 130, and the sliding rod 220 is distributed along the radial direction of the rotating disk 130. The screen drum 210 is fixedly arranged on the other end of the sliding rod 220. The screen drum 210 is inclined, specifically, inclined in the direction close to the axis of the rotating disk 130. The screen drum 210 is cylindrical, and a plurality of screen holes 211 are evenly distributed on the surface of the screen drum 210. 10 is provided with a through groove 212, and the position of the through groove 212 is provided on the front side of the sieve drum 210 along the rotation direction of the rotating disk 130, so that when the rotating disk 130 rotates, the sieve drum 210 is driven to dig out the catalyst in the rotating disk 130, wherein the size of the sieve hole 211 on the sieve drum 210 is the size of the qualified spherical catalyst, so that the qualified spherical catalyst on the rotating disk 130 can be directly intercepted by the sieve drum 210, while the smaller sized incompletely formed ones fall back into the rotating disk 130 through the sieve hole 211 to continue to be formed, until they are formed into qualified spherical catalysts and then dug out by the sieve drum 210.

[0049] Since the sieve drum 210 is inclined, when the sieve drum 210 rotates beyond the horizontal diameter of the rotating disk 130, the qualified spherical catalyst inside the sieve drum 210 will begin to gradually separate from the sieve drum 210. When the sieve drum 210 rotates to the highest position, the qualified spherical catalyst inside the sieve drum 210 will slide more obviously.

[0050] The frame 100 is also provided with a collecting assembly 500, which is located at the center of the rotating disk 130. The qualified spherical catalysts inside the sieve drum 210 fall onto the collecting assembly 500 after leaving the sieve drum 210, and the collecting assembly 500 collects the qualified spherical catalysts.

[0051] Through the setting of the above-mentioned sieve drum 210, qualified spherical catalysts can be screened out from the catalysts during the preparation process, thereby preventing the qualified spherical catalysts from continuing to roll in the rotating disk 130 and causing the spherical catalysts to become larger and larger. At the same time, screening out the qualified spherical catalysts can avoid affecting the unformed spherical catalysts (if the qualified spherical catalysts are not screened out, the qualified spherical catalysts continue to grow larger, thereby wasting catalytic powder and causing the unformed spherical catalysts to be unable to continue to roll and grow larger). In addition, through the setting of the sieve drum 210, the spherical catalysts can be separated from the preparation equipment once they are prepared and qualified, thereby reducing the subsequent separate screening steps, shortening the preparation time of the spherical catalysts, and improving the preparation efficiency.

[0052] In a further embodiment, the sliding rod 220 can move radially along the rotating disk 130 to adjust the distance between the sieve drum 210 and the edge of the rotating disk 130. By adjusting the distance, the amount of catalyst on the rotating disk 130 dug out by the sieve drum 210 can be adjusted, and the amount of catalyst on the rotating disk 130 dug out by the sieve drum 210 is negatively correlated with the distance between the sieve drum 210 and the rotating disk 130.

[0053] Specifically, an adjustment component 300 is arranged between the sliding rod 220 and the rotating disk 130, and the above-mentioned function can be achieved through the adjustment component 300. The adjustment component 300 includes an adjustment disk 310, and the adjustment disk 310 is rotatably arranged at the center position of the rotating disk 130. The end surface of the adjustment disk 310 close to the sliding rod 220 is provided with a track 311 for the sliding rod 220 to slide radially, so that the sliding rod 220 can slide radially along the rotating disk 130 in the track 311. A guide plate 320 is coaxially and fixedly arranged on the rotating plate 130, and the adjusting plate 310 is rotatably arranged on the rotating plate 130 by being rotatably connected with the guide plate 320. An inclined groove 321 is provided on the guide plate 320, and the inclined groove 321 extends from the center to the edge of the rotating plate 130 and is inclined toward the rotation direction of the rotating plate 130. Specifically, in the rotation direction of the rotating plate 130, one end of the inclined groove 321 close to the edge of the rotating plate 130 is located at the front side of one end of the inclined groove 321 close to the center of the rotating plate 130, and one end of the sliding rod 220 away from the screen drum 210 is slidably arranged in the inclined groove 321, that is, a protrusion 221 is arranged on the end, and the protrusion 221 is located in the inclined groove 321, and the rod body of the sliding rod 220 is in the track 311 of the adjusting plate 310.

[0054] When the adjusting disk 310 and the rotating disk 130 rotate synchronously, the position of the sliding rod 220 remains unchanged. Only when the adjusting disk 310 and the rotating disk 130 rotate relative to each other can the sliding rod 220 be driven to move radially along the rotating disk 130 . For example, when the rotation direction of the adjusting disk 310 is opposite to that of the rotating disk 130, the track 311 on the adjusting disk 310 drives the sliding rod 220 to move, so that the protrusion 221 at one end of the sliding rod 220 moves in the inclined groove 321 to a position close to the center of the rotating disk 130. Since the sieve drum 210 is fixedly arranged on the sliding rod 220, the sieve drum 210 gradually moves away from the edge of the rotating disk 130, the distance between the sieve drum 210 and the edge of the rotating disk 130 increases, and the catalyst excavated by the sieve drum 210 becomes less; when the rotation direction of the adjusting disk 310 is the same as that of the rotating disk 130 and the rotation speed is faster than the rotation speed of the rotating disk 130, the adjusting disk 310 drives the sliding rod 220 to move and the sliding rod 220 moves in the inclined groove 321 toward a position away from the center of the rotating disk 130, that is, the sieve drum 210 moves in a direction close to the edge of the rotating disk 130, thereby reducing the distance between the sieve drum 210 and the edge of the rotating disk 130.

[0055] It should be noted that at the beginning of the preparation of the spherical catalyst, there are more catalysts in the rotating disk 130. At this time, it is necessary to shorten the distance between the sieve drum 210 and the edge of the rotating disk 130 to reduce the catalysts dug by the sieve drum 210. This is because at the beginning of the preparation, the catalyst is not formed and most of it is powdered. If the sieve drum 210 digs more catalysts, serious dust will be generated. By increasing the distance between the sieve drum 210 and the edge of the rotating disk 130, the amount of catalyst dug by the sieve drum 210 can be reduced, and the degree of dust is also reduced. As the preparation time increases, the catalyst in the rotating disk 130 gradually takes shape, and the sieve drum 210 continuously sieves out and transports the formed spherical catalysts, so the catalyst in the rotating disk 130 gradually decreases, and the distance between the catalyst and the sieve drum 210 increases. If the sieve drum 210 is not gradually close to the edge of the rotating disk 130, it will cause the sieve drum 210 to be unable to dig the catalyst. Therefore, the sieve drum 210 is gradually close to the edge of the rotating disk 130 to ensure that the sieve drum 210 can dig the catalyst.

[0056] Specifically, the above functions are realized by the following structure:

[0057] An opening 312 is provided at the center position of the adjusting disk 310, and the opening 312 is circular. A slide groove 313 is provided on the inner circumferential surface of the opening 312, and the slide groove 313 extends along the circumference of the opening 312. The length of the slide groove 313 is about one eighth of a circular arc. A first adjusting plate 314 is provided in the slide groove 313, and the first adjusting plate 314 moves along the slide groove 313 in the slide groove 313. At the same time, a second adjusting plate 315 is fixedly provided on the inner circumferential surface, and the second adjusting plate 315 is close to the first adjusting plate 314. In the rotation direction of the rotating disk 130, the second adjusting plate 315 is located in front of the first adjusting plate 314, and an elastic member 316 is provided between the first adjusting plate 314 and the second adjusting plate 315, and the elastic member 316 is a spring. A connecting sleeve 330 is coaxially and fixedly provided at the center position of the rotating disk 130. The interior of the connecting sleeve 330 is hollow and has a keyway 331. A top pressure plate 340 is installed on the connecting sleeve 330. A key shaft 341 is coaxially and fixedly provided on one end face of the top pressure plate 340. The key shaft 341 is slidably inserted in the connecting sleeve 330. The top pressure plate 340 cannot rotate relative to the rotating disk 130 but can slide axially relative to the rotating disk 130. A wedge block 342 is also provided on one end face of the top pressure plate 340 where the key shaft 341 is provided. The wedge block 342 has an inclined surface 343. The inclined surface 343 of the wedge block 342 is in sliding contact with an end of the first adjustment plate 314 away from the elastic member 316.

[0058] In the initial state, the elastic member 316 is in the original length state, the rotation of the rotating disk 130 drives the top pressure disk 340 and the adjusting disk 310 to rotate synchronously, and the screen drum 210 on the sliding rod 220 rotates to contact with the catalyst (because the rotating disk 130 is inclined, the catalyst will accumulate at the lowest position of the rotating disk 130, and the screen drum 210 will contact with the catalyst when it rotates to this position, thereby starting to dig out the catalyst). Since the screen drum 210 is digging out the catalyst, the catalyst will have a reaction force on the screen drum 210, and the reaction force makes the screen have a tendency to move in the opposite direction, thereby reducing the rotation speed of the adjusting disk 310, while the rotation speed of the rotating disk 130 is not The adjustment disk 310 rotates in the opposite direction relative to the rotating disk 130, thereby compressing the elastic member 316 between the first adjustment plate 314 and the second adjustment plate 315 on the adjustment disk 310, and the sliding rod 220 slides in the inclined groove 321. The sliding rod 220 drives the screen drum 210 to move in the track 311 of the adjustment disk 310 toward the center of the rotating disk 130, thereby reducing the catalyst dug by the screen drum 210 and reducing the degree of dust. When the screen drum 210 is separated from the catalyst, the catalyst on the rotating disk 130 no longer exerts a reaction force on the screen drum 210, and the sliding rod 220 is reset when the elastic member 316 is reset;

[0059] As time goes by, the catalyst in the rotating disk 130 gradually decreases, the transported catalyst increases, and the amount of catalyst on the collecting assembly 500 increases. The collecting assembly 500 moves downward, thereby pushing the top pressure plate 340 to move in the direction close to the rotating disk 130. The wedge block 342 on the top pressure plate 340 pushes the first adjustment plate 314 to slide in the slide groove 313 along the rotation direction of the rotating disk 130, so that the elastic member 316 between the first adjustment plate 314 and the second adjustment plate 315 is compressed, and the elastic member 316 has a tendency to reset. The elastic member 316 applies additional force to the rotation of the adjusting disk 310, temporarily accelerating the rotation speed of the adjusting disk 310. Since the rotation speed of the rotating disk 130 remains unchanged, the adjusting disk 310 rotates in the same direction relative to the rotating disk 130, so that the sliding rod 220 drives the screen drum 210 to move in the track 311 in the direction close to the edge of the rotating disk 130, so that the screen drum 210 is close to the edge of the rotating disk 130, avoiding the situation where the screen drum 210 cannot dig out the catalyst due to the reduction of the catalyst.

[0060] Specifically, the material collecting assembly 500 in this embodiment includes a conveyor belt 510 and a support plate 530. The support plate 530 is horizontally arranged and close to the center of the rotating disk 130. A support frame 520 is telescopically arranged on the support plate 530. The conveyor belt 510 is wound around the support frame 520. One end of the support frame 520 close to the center of the rotating disk 130 is in contact with the top pressure plate 340. When the catalyst on the sieve drum 210 is gradually spilled on the conveyor belt 510, the support frame 520 gradually moves downward to push the top pressure plate 340, so that the top pressure plate 340 moves toward the rotating disk 130, thereby reducing the distance between the sieve drum 210 and the edge of the rotating disk 130.

[0061] In order to facilitate the extension and retraction of the support frame 520, a telescopic rod 540 is arranged between the support frame 520 and the support plate 530. When the weight carried by the support frame 520 increases, the telescopic rod 540 is compressed and shortened. When the weight carried by the support frame 520 decreases, the telescopic rod 540 is extended and reset. At the same time, a reset spring is arranged between the key shaft 341 of the top pressure plate 340 and the connecting sleeve 330. When the support frame 520 is reset, the top pressure plate 340 is also reset.

[0062] In a further embodiment, there are multiple sieve cylinders 210 and sliding rods 220, one sieve cylinder 210 corresponds to one sliding rod 220, and the multiple sieve cylinders 210 and sliding rods 220 are arranged in a circular array on the rotating disk 130. The screening efficiency and transportation efficiency of the catalyst are improved by arranging multiple sieve cylinders 210. Compared with only one sieve cylinder 210, the rotating disk 130 completes only one screening and feeding when it rotates one circle, while when there are multiple sieve cylinders 210, the rotating disk 130 can complete multiple screening and feeding when it rotates one circle.

[0063] Specifically, a driving assembly 400 is provided on the frame 100, and the driving assembly 400 is used to drive the rotating disk 130 to rotate. The driving assembly 400 includes a driving motor 410 and a transmission shaft 420. One end of the transmission shaft 420 is coaxially connected to the rotating shaft of the driving motor 410, and the other end of the transmission shaft 420 is coaxially and fixedly connected to the rotating disk 130. The rotation of the driving motor 410 drives the rotating disk 130 to rotate to prepare the spherical catalyst.

[0064] In a further embodiment, the frame 100 includes a horizontal plate 110 and an inclined plate 120. The horizontal plate 110 is placed horizontally, and the inclined plate 120 is placed inclined. One end of the two is hinged, and the other end is hinged through a telescopic cylinder 140. The inclination degree of the inclined plate 120 is adjusted by adjusting the length of the telescopic cylinder 140.

[0065] To facilitate the connection of the rotating disk 130, a support plate 121 is fixedly provided on the upper end surface of the inclined plate 120. A rotating hole is opened on the support plate 121. The transmission shaft 420 is limited by the support plate 121, and the driving motor 410 is also fixedly provided on the upper end surface of the inclined plate 120 and connected to the transmission shaft 420.

[0066] The specific working process of a catalyst carrier forming rolling ball machine provided by the present application is described in combination with the above embodiments:

[0067] The driving motor 410 is started, the driving motor 410 drives the transmission shaft 420 to rotate, the transmission shaft 420 drives the rotating disk 130 to rotate, and the conveyor belt 510 is started at the same time.

[0068] The catalyst powder and the binder are mixed evenly and added into the rotating disk 130. The rotating disk 130 rotates to drive the mixed powder to roll and gradually form particles with very small particle size. As the rotating disk 130 continues to rotate, the particles gradually increase in size to form.

[0069] Screening:

[0070] During the rotation of the rotating disk 130, the sieve drum 210 rotates with the rotating disk 130 to dig out the catalyst. Only qualified catalyst can be dug out, and unqualified catalyst leaks out through the sieve holes 211 on the sieve drum 210 and continues to roll and form on the rotating disk 130. The sieve drum 210 continues to rotate to transport the qualified catalyst to the conveyor belt 510 for collection.

[0071] adjust:

[0072] When the sieve drum 210 digs out the catalyst, the catalyst will give a reaction force to the sieve drum 210, that is, the rotation speed of the adjustment plate 310 connected to the sliding rod 220 is slowed down, so that the adjustment plate 310 rotates in the opposite direction relative to the rotating disk 130, and the adjustment plate drives the sliding rod 220 to move so that the protrusion 221 on the sliding rod 220 moves in the inclined groove 321 to a position close to the center of the rotating disk 130, and the distance between the sieve drum 210 and the edge of the rotating disk 130 increases, so that the sieve drum 210 digs out less catalyst to reduce the degree of dust.

[0073] As time goes by, the catalyst on the rotating disk 130 gradually decreases, while the catalyst on the transmission belt gradually increases. The weight carried by the support frame 520 increases, so that the support frame 520 moves downward to push the top pressure plate 340 to move closer to the rotating disk 130. The inclined surface 343 of the wedge block 342 on the top pressure plate 340 pushes the first adjustment plate 314 to slide in the slide groove 313 along the first direction, so that the elastic member 316 between the first adjustment plate 314 and the second adjustment plate 315 is compressed. When the elastic member 316 is reset, the second adjustment plate 314 is given a The force of the rotation of the rotating disk 130 in the rotation direction is generated. Since the second adjusting plate 315 is fixed on the adjusting disk 310, the adjusting disk 310 is temporarily accelerated by the elastic member 316, so that the rotation speed of the adjusting disk 310 is greater than that of the rotating disk 130. The adjusting disk 310 drives the sliding rod 220 to move, and the protrusion 221 of the sliding rod 220 moves in the inclined groove 321 toward the edge of the rotating disk 130. The sliding rod 220 drives the screen drum 210 to move toward the edge of the rotating disk 130 to dig out the gradually decreasing catalyst.

[0074] The present application also provides a method for preparing a catalyst carrier-shaped rolling ball, comprising the following steps:

[0075] Step S100: uniformly mixing the catalyst powder and the binder according to a certain proportion;

[0076] Among them, taking alumina (Al2O3) carrier as an example, the powder accounts for 80-95%, and the binder accounts for 5-20%. Commonly used binders include sodium silicate, polyvinyl alcohol, etc.

[0077] Step S200: adding the uniformly mixed catalyst powder and binder into a ball rolling machine;

[0078] The uniformly mixed catalyst powder and binder are added to the rotating disk 130 of the catalyst carrier forming machine of the present application to prepare the catalyst.

[0079] Step S300: Start the ball rolling machine to prepare spherical catalyst.

[0080] The driving motor 410 is turned on, and the driving motor 410 drives the rotating row to start rotating to start preparing the catalyst.

[0081] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A ball rolling machine for forming a catalyst carrier, characterized in that: include: A frame, on which a rotating disk is tiltedly arranged, in which the catalyst is placed, and the rotating disk rotates around its own axis to drive the catalyst to roll and form; A screening assembly, the screening assembly comprising a screen drum and a sliding rod, one end of the sliding rod is arranged near the center of the rotating disk and the sliding rod is distributed along the radial direction thereof, the screen drum is fixed on the other end of the sliding rod, the screen drum is inclined toward the axis of the rotating disk, and a through groove is provided on the screen drum at a position on the front side of the rotating direction of the rotating disk; The rotating disk is configured to drive the sieve drum to dig out the catalyst when the rotating disk rotates, and the sieve drum screens out the qualified catalyst; The material receiving assembly is used to receive the qualified catalyst screened out by the screen cylinder.

2. The catalyst carrier forming ball rolling machine according to claim 1, characterized in that: The sliding rod can move radially along the rotating disk to drive the sieve drum to move radially along the rotating disk. An adjusting component is arranged between the sliding rod and the rotating disk. The adjusting component adjusts the sliding rod to drive the sieve drum to move radially along the rotating disk to adjust the amount of catalyst excavated by the sieve drum. The amount of catalyst excavated by the sieve drum is negatively correlated with the distance between the sieve drum and the edge of the rotating disk.

3. The catalyst carrier forming ball rolling machine according to claim 2, characterized in that: The adjusting assembly comprises an adjusting disk, the adjusting disk is coaxially rotatably arranged on the rotating disk, and the adjusting disk is provided with a track for the sliding rod to slide radially along the rotating disk; A guide plate is coaxially and fixedly arranged on the rotating plate, and an inclined slot is provided on the guide plate. In the rotating direction of the rotating plate, one end of the inclined slot close to the edge of the rotating plate is located in front of one end of the inclined slot close to the center of the rotating plate, and one end of the sliding rod away from the screen drum is slidably arranged in the inclined slot; When the adjusting disk is configured to rotate relative to the rotating disk in the opposite direction, the adjusting disk drives the sliding rod to move away from the edge of the rotating disk radially along the rotating disk; when the adjusting disk rotates in the same direction as the rotating disk and the speed is greater than the rotation speed of the rotating disk, the adjusting disk drives the sliding rod to approach the edge of the rotating disk radially along the rotating disk.

4. The ball rolling machine for forming a catalyst carrier according to claim 3, characterized in that: The adjusting disk has an opening at its center, and a slide groove is provided on the inner circumference of the opening, a first adjusting plate is slidably arranged in the slide groove, a second adjusting plate is fixedly arranged on the inner circumference of the opening, and the second adjusting plate is located in front of the first adjusting plate in the rotating direction of the rotating disk, and an elastic member is connected between the first adjusting plate and the second adjusting plate; A connecting sleeve with a key groove inside is provided at the center position of the rotating disk, a top pressure plate is inserted into the connecting sleeve, a key shaft is fixedly provided at the center of the top pressure plate, the key shaft and the connecting sleeve are axially slidably matched, a wedge block is provided on the top pressure plate, the wedge block abuts against one end of the first adjustment plate away from the elastic member, the top pressure plate approaches the rotating disk to push the first adjustment plate to slide in the slide groove along the rotation direction of the rotating disk.

5. The ball rolling machine for forming a catalyst carrier according to claim 4, characterized in that: The material receiving assembly includes a conveyor belt and a support plate. A support frame is telescopically arranged on the support plate. The conveyor belt is wound around the support frame. The molded catalyst is transported by the conveyor belt. When the conveyor belt transports more molded catalyst, the support frame moves downward to push the top pressure plate.

6. The ball rolling machine for forming a catalyst carrier according to claim 1, characterized in that: There are multiple sliding rods and sieve cylinders, and the multiple sliding rods and sieve cylinders are arranged in a circular array on the rotating disk.

7. The ball rolling machine for forming a catalyst carrier according to claim 1, characterized in that: The frame is provided with a driving assembly, and the driving assembly is used for driving the rotating disk to rotate.

8. The ball rolling machine for forming a catalyst carrier according to claim 7, characterized in that: The driving assembly comprises a driving motor and a transmission shaft, wherein the driving motor is coaxially connected to the transmission shaft, and the other end of the transmission shaft is connected to the rotating disk.

9. The ball rolling machine for forming a catalyst carrier according to claim 1, characterized in that: The frame comprises a horizontal plate and an inclined plate. The two ends of the horizontal plate and the inclined plate are hinged, and the other ends are hinged through a telescopic cylinder. The telescopic cylinder can adjust the inclination angle of the inclined plate by telescoping.

10. A method for preparing catalyst carrier-molded rolling balls, applicable to the catalyst carrier-molded rolling ball machine according to any one of claims 1 to 9, characterized in that: The specific steps include: S100: Mix the catalyst powder and the binder evenly according to a certain proportion; S200: adding the uniformly mixed catalyst powder and binder into the ball rolling machine; S300: Start the ball rolling machine to prepare the spherical catalyst.

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