Catalyst preparation device

Abstract

The invention relates to the technical field of catalysts, and particularly discloses a catalyst preparation device which is characterized in that a plurality of upper pressing pieces are arranged on a rotating disc at intervals in the circumferential direction of the rotating disc, the upper pressing pieces are slidably connected with the rotating disc, ejector rods corresponding to the upper pressing pieces are slidably arranged on the rotating disc, and an upper guide piece and a lower guide piece are arranged on a base frame; the rotating disc is provided with an extrusion cavity matched with the upper pressing piece and the ejector rod. A first rod is arranged in the upper pressing piece in a sliding mode, a limiting rod matched with the upper pressing piece is arranged on the first rod in a sliding mode, an unlocking rod matched with the limiting rod is arranged on the upper pressing piece in a sliding mode, a second rod is arranged in the ejector rod in a sliding mode, an upper ejector ring and a lower ejector ring are arranged on the base frame in a sliding mode, and a driving piece used for driving the upper ejector ring to move is arranged on the base frame. The upper jacking ring can abut against the unlocking rod so that the first rod and the upper pressing piece can be separated from locking, and the lower jacking ring can move upwards and abut against the second rod so that the second rod can stretch out of the jacking rod upwards; according to the invention, efficient and multi-form pressing of catalyst particles is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of catalysts, and particularly relates to a catalyst preparation device. Background Art

[0002] A catalyst is a substance that can change the reaction rate in a chemical reaction, but its mass and chemical properties remain unchanged before and after the reaction itself. It makes the reaction easier to proceed by reducing the activation energy of the reaction, thereby accelerating the reaction rate, but does not affect the equilibrium position of the reaction. Currently, catalysts are widely used in industrial production, environmental protection, energy development, and biomedical fields. After the catalyst is tableted, uniform size and shape, higher density and strength can be obtained, thereby improving its wear resistance and fracture resistance during use, ensuring that it can fully play its catalytic role. In addition, the formed catalyst particles have good fluidity and stability, which are convenient for storage and transportation, and also reduce the wear and pollution of the catalyst during storage and transportation.

[0003] Chinese Patent with Publication No. CN110077027B discloses a powder catalyst tablet pressing device, which includes a base, a support plate, a first connecting rod, a loading hopper, a discharge pipe, a first bearing seat, a first rotating shaft, a turntable, a handle, a baffle plate, a limiting block, a rolling ball, a first spring, a disc, a contact ring, and a tablet pressing mechanism. A support plate is fixedly connected to the left side of the top of the base. Two first connecting rods for support are fixedly connected to the upper part of the right side of the support plate. A loading hopper for placing the catalyst is fixedly connected between the right ends of the two first connecting rods. The middle of the bottom of the loading hopper is connected with a discharge pipe for discharging the catalyst. The discharge pipe is communicated with the inside of the loading hopper. A first opening for guiding is opened in the lower part of the right side of the discharge pipe. A baffle plate for blocking the catalyst is arranged in the first opening. The right end of the baffle plate is fixedly connected with a limiting block. First springs are connected between the upper and lower sides of the left side surface of the limiting block and the lower part of the outer right side surface of the discharge pipe. A rolling ball is rotatably arranged on the right side surface of the limiting block. First bearing seats are embedded and fixedly connected to the upper parts of the left and right sides of the discharge pipe. A first rotating shaft is arranged between the first bearing seats on the left and right sides. A disc is fixedly connected to the right end of the first rotating shaft. A contact ring for cooperating with the rolling ball is fixedly connected to the middle of the left side surface of the disc. The contact ring contacts the rolling ball. A notch is opened in the middle of the lower part of the left side surface of the contact ring. A first guide hole is opened in the upper part of the support plate. The left end of the first rotating shaft passes through the first guide hole and is fixedly connected with a turntable. A handle is fixedly connected to the eccentric position of the left side surface of the turntable. A tablet pressing mechanism is arranged between the right side surface of the disc and the lower part of the right side surface of the support plate.

[0004] In the implementation process of the above technical solution, the staff manually rotates the handle, and the catalyst in the charging hopper can fall into the aggregate hopper through the discharge pipe. As the staff continues to manually rotate the handle, the guide sleeve moves downward and drives the second guide rod to move downward. The second guide rod moves downward and drives the first sliding sleeve to move downward. The first sliding sleeve moves downward and drives the pressing plate to move downward. When the pressing plate moves downward, it can extrude the catalyst in the aggregate hopper, thereby realizing the tablet pressing process of the catalyst. Subsequently, by rotating the handle, the pressing plate moves upward and resets, and then the pressed catalyst tablets can be taken out from the aggregate hopper. This process requires manual pressing of the catalyst one by one and taking out the pressed catalyst tablets from the aggregate hopper one by one, which is relatively inconvenient to operate and is not conducive to the efficient preparation of catalyst tablets. Summary of the Invention

[0005] The present invention provides a catalyst preparation device, aiming to solve the problem that it is difficult to efficiently press catalyst particles in the related art.

[0006] A catalyst preparation device includes a base frame. A turntable is rotatably provided on the base frame. A plurality of upper pressing members are arranged at intervals along the circumference of the turntable. The upper pressing members are slidably connected to the turntable. A ejector rod corresponding to each upper pressing member is slidably provided on the turntable. An upper guiding member for driving the upper pressing member to move up and down and a lower guiding member for driving the ejector rod to move up and down are fixedly provided on the base frame. The turntable has an extrusion cavity for cooperating with the upper pressing member and the ejector rod. A feeding assembly for adding catalyst particles into the extrusion cavity is installed on the base frame. A rod one is slidably provided in the upper pressing member through an elastic member one. A limiting rod cooperating with the upper pressing member is slidably provided on the rod one through an elastic member two. An unlocking rod cooperating with the limiting rod is slidably provided on the upper pressing member. A rod two is slidably provided in the ejector rod through an elastic member four. An upper top ring and a lower top ring are slidably provided on the base frame. A driving member for driving the upper top ring to move is provided on the base frame. When the upper top ring moves downward, the upper top ring can abut against the unlocking rod to disengage the rod one from the upper pressing member. The lower top ring can move upward and abut against the rod two to make the rod two extend upward out of the ejector rod. When the turntable rotates, the upper pressing member can move downward to extrude the catalyst particles in the extrusion cavity into a formed shape. Subsequently, the upper pressing member can move upward and the ejector rod can move upward to eject the material in the extrusion cavity.

[0007] During the rotation of the turntable of the present invention, by controlling the movement of the upper top ring and the lower top ring, the catalyst particles can be pressed into a columnar or annular shape, which is convenient and efficient to operate.

[0008] Preferably, the upper guiding member is coaxially arranged with the turntable. A first guiding groove and a second guiding groove are sequentially connected end to end on the outer circumference of the upper guiding member. An upper guide wheel cooperating with the first guiding groove and the second guiding groove is rotatably provided on the upper pressing member. The cooperation between the upper guide wheel and the upper guiding member enables the upper pressing member to move up and down during the rotation of the turntable.

[0009] Preferably, the lower guide is coaxially arranged with the turntable. Guide grooves three and four are formed on the outer periphery of the lower guide. Guide grooves three and four are connected through a transition groove. A lower guide wheel that cooperates with guide grooves three, four and the transition groove is rotatably arranged on the ejector rod. The cooperation between the lower guide wheel and the lower guide enables the ejector rod to move up and down during the rotation of the turntable.

[0010] Preferably, the unlocking rod is connected to the upper pressing member through an elastic member three. A limiting hole that cooperates with the limiting rod and the unlocking rod is formed in the upper pressing member. When the limiting rod enters the limiting hole, rod one and the upper pressing member are locked to each other, and the lower end surface of rod one is flush with the lower end surface of the upper pressing member.

[0011] Preferably, a sliding groove is axially formed in the ejector rod. A mating block that cooperates with the sliding groove is provided on the outer periphery of rod two. When the mating block abuts against the bottom of the sliding groove, the upper end surface of rod two is flush with the upper end surface of the ejector rod.

[0012] Preferably, an upper rack is provided on the upper top ring, and a lower rack is provided on the lower top ring. A gear one that meshes with the upper rack is rotatably arranged on the base frame. One end of the gear one is coaxially fixed with a gear two that meshes with the lower rack. Thus, when the upper top ring moves downward, the lower top ring can move upward.

[0013] Preferably, the module of the gear one is larger than that of the gear two. The lower end of the upper top ring has a guiding surface one that cooperates with the unlocking rod, so that when the upper top ring moves downward, it can smoothly push the unlocking rod on the upper pressing member in the direction close to the limiting rod; both ends of the upper top ring along its length extension direction respectively have a guiding surface two that cooperates with the unlocking rod, so that when the upper pressing member located outside the upper top ring enters the inner ring side of the upper top ring during the downward movement of the upper top ring, the upper top ring can smoothly push the unlocking rod on the upper pressing member in the direction close to the limiting rod; one end of the lower top ring along its length extension direction has a guiding surface three, so that during the rotation of rod two with the ejector rod, rod two can smoothly move to the upper end surface of the lower top ring through the guiding surface three, so that rod two abuts against the lower top ring, so that rod two extends upward out of the upper end surface of the ejector rod.

[0014] Preferably, the feeding assembly includes a feeding bucket installed on the base frame. The lower end surface of the feeding bucket is attached to the top end surface of the extrusion cavity. The bottom of the feeding bucket has a feeding hole for feeding materials into the extrusion cavity. A plurality of pushing plates are rotatably arranged in the feeding bucket. The lower end of the pushing plate has a feeding member for feeding the catalyst particles in the feeding bucket into the extrusion cavity.

[0015] Preferably, an upper sliding hole for the upper pressing member to slide and a lower sliding hole for the ejector rod to slide are formed on the turntable. An upper sliding block that cooperates with the upper sliding hole is provided on the outer periphery of the upper pressing member. A lower sliding block that cooperates with the lower sliding hole is provided on the outer periphery of the ejector rod.

[0016] Preferably, a first motor is installed on the base frame. The output end of the first motor is equipped with a speed reducer, and the turntable is connected to the output end of the speed reducer. A blanking pipe is provided on the base frame, and a material guiding plate is provided on the blanking pipe for guiding the material ejected from the extrusion cavity by the ejector rod into the blanking pipe.

[0017] Adopting the above technical solution, the beneficial effects of the present invention are as follows: 1. When the lower end surface of the upper top ring is higher than the highest position of the unlocking rod during the movement with the upper pressing member, and the upper end surface of the lower top ring is lower than the lowest position of the second rod during the movement with the ejector rod, by controlling the operation of the first motor and the second motor, the upper guide wheel will enter the second guide groove, and the upper pressing member will slide downward and then upward relative to the turntable to realize the extrusion of the particles in the extrusion cavity. When the upper guide wheel leaves the second guide groove and enters the first guide groove, the lower guide wheel enters the third guide groove from the fourth guide groove, and then the formed columnar catalyst product in the extrusion cavity is ejected. Subsequently, the material guiding plate can guide the catalyst product into the blanking pipe and discharge it.

[0018] 2. Control the driving member to move the upper top ring downward and the lower top ring upward. Subsequently, control the operation of the first motor and the second motor. The upper guide wheel will enter the second guide groove, and the upper pressing member will slide downward and then upward relative to the turntable, thereby realizing the extrusion of the catalyst particles. Then, when the upper guide wheel leaves the second guide groove and enters the first guide groove, the lower guide wheel enters the third guide groove from the fourth guide groove. The second rod disengages from the lower top ring and returns to a state flush with the upper end surface of the ejector rod. The ejector rod can move upward to eject the formed ring-shaped catalyst product in the extrusion cavity. Subsequently, the material guiding plate can guide the catalyst product into the blanking pipe and discharge it. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the cooperation of the turntable, the blanking pipe and the feeding bucket of the present invention.

[0021] Figure 3 It is a schematic diagram of the structure on the turntable of the present invention.

[0022] Figure 4 It is a schematic diagram of the structure of the upper guiding member and the lower guiding member of the present invention.

[0023] Figure 5 It is a cross-sectional view of the upper guiding member, the lower guiding member and the turntable of the present invention.

[0024] Figure 6 It is Figure 5 The enlarged view of part A in

[0025] Figure 7 It is an exploded view of the upper pressing member, the first rod and the unlocking rod of the present invention.

[0026] Figure 8 is Figure 5 the enlarged view of part B in

[0027] Figure 9 the schematic diagram of the cooperation between the upper top ring and the lower top ring of the present invention.

[0028] Figure 10 the cross-sectional view of the feeding barrel of the present invention.

[0029] Figure 11 the schematic structural diagram of the pushing plate and the feeding member of the present invention.

[0030] Reference signs: 10, base frame; 11, upper guiding member; 111, first guiding groove; 112, second guiding groove; 12, lower guiding member; 121, third guiding groove; 122, fourth guiding groove; 123, transition groove; 13, upper top ring; 131, upper rack; 132, first guiding surface; 133, second guiding surface; 14, lower top ring; 141, lower rack; 142, third guiding surface; 15, driving member; 16, first motor; 17, first gear; 18, second gear; 19, blanking pipe; 191, guiding plate; 20, turntable; 201, upper sliding hole; 202, lower sliding hole; 21, extrusion cavity; 30, upper pressing member; 301, upper guide wheel; 302, upper slider; 303, limiting hole; 31, first rod; 311, first elastic member; 312, engaging portion; 32, limiting rod; 321, second elastic member; 33, unlocking rod; 331, third elastic member; 40, ejector rod; 401, lower guide wheel; 402, lower slider; 403, sliding groove; 41, fourth elastic member; 42, second rod; 421, engaging block; 50, feeding barrel; 501, blanking hole; 51, storage barrel; 52, pushing plate; 53, feeding member; 531, lower pressing surface; 54, second motor. Detailed Description of the Invention

[0031] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0032] Referring to Figure 1 , a catalyst preparation device includes a base frame 10, and a turntable 20 is rotatably provided on the base frame 10. In this embodiment, a first motor 16 is installed on the base frame 10, a speed reducer is installed at the output end of the first motor 16, and the turntable 20 is connected to the output end of the speed reducer.

[0033] Referring to Figures 2 - 7, a plurality of upper pressing members 30 are uniformly arranged along the circumference of the turntable 20. The upper pressing members 30 can slide in the vertical direction. The turntable 20 is provided with upper sliding holes 201 for the upper pressing members 30 to slide. The outer circumference of the upper pressing member 30 has upper sliding blocks 302 that cooperate with the upper sliding holes 201. A fixed upper guiding member 11 for driving the upper pressing members 30 to move up and down is provided on the base frame 10. The upper guiding member 11 is coaxially arranged with the turntable 20. The outer circumference of the upper guiding member 11 is provided with a guiding groove one 111 and a guiding groove two 112 that are connected end to end in sequence. An upper guiding wheel 301 that cooperates with the guiding groove one 111 and the guiding groove two 112 is rotatably arranged on the upper pressing member 30. The guiding groove one 111 is horizontally arranged, and the guiding groove two 112 is arc-shaped. When the upper guiding wheel 301 moves in the guiding groove one 111, the upper pressing member 30 always remains at the same height. When the upper guiding wheel 301 enters the guiding groove two 112, the upper pressing member 30 will first slide downward and then upward relative to the turntable 20.

[0034] A rod one 31 is slidably arranged in the upper pressing member 30 through an elastic member one 311. The elastic member one 311 is a spring. The rod one 31 has a cooperating portion 312. The cross-section of the cooperating portion 312 is rectangular. The upper pressing member 30 has a rectangular groove adapted to the cooperating portion 312. A limiting rod 32 that cooperates with the upper pressing member 30 is slidably arranged on the cooperating portion 312 through an elastic member two 321. The elastic member two 321 is a spring. An unlocking rod 33 that cooperates with the limiting rod 32 is slidably arranged on the upper pressing member 30 through an elastic member three 331. The elastic member three 331 is a spring. A limiting hole 303 that cooperates with the limiting rod 32 and the unlocking rod 33 is horizontally opened in the upper pressing member 30. When the limiting rod 32 enters the limiting hole 303 under the action of the elastic member two 321, the rod one 31 and the upper pressing member 30 are locked to each other. The lower end surface of the rod one 31 is flush with the lower end surface of the upper pressing member 30. When the unlocking rod 33 moves towards the limiting rod 32 and abuts against the limiting rod 32, so that the limiting rod 32 disengages from the limiting hole 303 and the end of the limiting rod 32 is flush with the side surface of the cooperating portion 312, the elastic member two 321 is compressed. At this time, if the rod one 31 is upwardly abutted, the rod one 31 can move upward relative to the upper pressing member 30. It can be understood that when the unlocking rod 33 moves away from the limiting rod 32 and disengages from abutting against the limiting rod 32, the elastic member one 311 can drive the rod one 31 to move downward relative to the upper pressing member 30, and make the limiting rod 32 correspond to the limiting hole 303. Subsequently, the elastic member two 321 can push the limiting rod 32 so that the limiting rod 32 enters the limiting hole 303 again, so that the rod one 31 and the upper pressing member 30 are locked to each other.

[0035] Reference Figures 2 - 5 And Figure 8, a push rod 40 corresponding to the upper pressing member 30 is slidably provided on the turntable 20 in the vertical direction. The push rod 40 is located below the upper pressing member 30. An extrusion cavity 21 for cooperating with the upper pressing member 30 and the push rod 40 is provided on the turntable 20. A downward sliding hole 202 for the push rod 40 to slide is formed in the turntable 20. A downward sliding block 402 cooperating with the downward sliding hole 202 is provided on the outer periphery of the push rod 40. The downward sliding hole 202 is coaxially arranged with the extrusion cavity 21 and the upward sliding hole 201. A lower guiding member 12 for driving the push rod 40 to move up and down is fixedly provided on the base frame 10. The lower guiding member 12 is coaxially arranged with the turntable 20. A guiding groove three 121 and a guiding groove four 122 are formed on the outer periphery of the lower guiding member 12. The guiding groove three 121 and the guiding groove four 122 are communicated through a transition groove 123. A lower guide wheel 401 cooperating with the guiding groove three 121, the guiding groove four 122 and the transition groove 123 is rotatably provided on the push rod 40. The guiding groove three 121 and the guiding groove four 122 are respectively horizontally arranged. The guiding groove three 121 is located above the guiding groove four 122. The guiding groove two 112 is located above the guiding groove four 122. The guiding groove three 121 and the transition groove 123 are located below the guiding groove one 111. When the lower guide wheel 401 moves in the guiding groove four 122, the push rod 40 always remains at the same height. When the lower guide wheel 401 moves in the guiding groove three 121, the push rod 40 always remains at the same height. When the lower guide wheel 401 moves from the guiding groove four 122 through the transition groove 123 to the guiding groove three 121, the push rod 40 will move upward relative to the turntable 20 and push the finished product in the extrusion cavity 21 to the upper end face of the extrusion cavity 21.

[0036] A rod two 42 is slidably provided in the push rod 40 through an elastic member four 41. The elastic member four 41 is a spring. A sliding groove 403 is axially formed in the push rod 40. A cooperating block 421 cooperating with the sliding groove 403 is provided on the outer periphery of the rod two 42. When the cooperating block 421 abuts against the bottom of the sliding groove 403, the upper end face of the rod two 42 is flush with the upper end face of the push rod 40. When the rod two 42 moves upward relative to the push rod 40, the elastic member four 41 will be compressed.

[0037] Reference Figures 2 - 5 And Figure 9 , in this embodiment, the maximum height difference between the guiding groove one 111 and the guiding groove two 112 is greater than the height difference between the guiding groove three 121 and the guiding groove four 122. An upper top ring 13 and a lower top ring 14 are slidably provided on the base frame 10 in the vertical direction. The upper top ring 13 and the lower top ring 14 are respectively coaxially arranged with the turntable 20. A driving member 15 for driving the upper top ring 13 to move is provided on the base frame 10. The driving member 15 can be an electric push rod. An upper rack 131 is provided on the upper top ring 13. A lower rack 141 is provided on the lower top ring 14. A gear one 17 meshing with the upper rack 131 is rotatably provided on the base frame 10. One end of the gear one 17 is coaxially and fixedly provided with a gear two 18 meshing with the lower rack 141. Therefore, when the driving member 15 drives the upper top ring 13 to move downward, the lower top ring 14 can move upward simultaneously.

[0038] Since the maximum height difference between the first guiding groove 111 and the second guiding groove 112 is greater than the height difference between the third guiding groove 121 and the fourth guiding groove 122, in order to ensure that the lower guide wheel 401 moves within the fourth guiding groove 122 and the upper guide wheel 301 moves within the second guiding groove 112 to press the annular catalyst product, the upper top ring 13 needs to always keep abutting against the unlocking rod 33 on the upper pressing member 30 that moves into the second guiding groove 112, and the lower top ring 14 needs to always keep abutting against the second rod 42 on the ejector rod 40 that moves to correspond to the second guiding groove 112 up and down. Therefore, the modulus of the first gear 17 needs to be greater than that of the second gear 18, so that when the upper top ring 13 moves downward by a relatively large distance, the lower top ring 14 can only move upward by a relatively small distance.

[0039] The lower end of the upper top ring 13 has a first guiding surface 132 that cooperates with the unlocking rod 33, so as to smoothly push the unlocking rod 33 on the upper pressing member 30 in the direction close to the limiting rod 32 when the upper top ring 13 moves downward; both ends of the upper top ring 13 along the extending direction of its length respectively have a second guiding surface 133 that cooperates with the unlocking rod 33, so as to smoothly push the unlocking rod 33 on the upper pressing member 30 in the direction close to the limiting rod 32 when the upper pressing member 30 located outside the upper top ring 13 enters the inner ring side of the upper top ring 13 when the upper top ring 13 moves downward; one end of the lower top ring 14 along the extending direction of its length has a third guiding surface 142, so that during the rotation of the second rod 42 with the ejector rod 40, the second rod 42 can smoothly move to the upper end surface of the lower top ring 14 through the third guiding surface 142, so that the second rod 42 keeps abutting against the lower top ring 14, thereby enabling the second rod 42 to extend upward out of the upper end surface of the ejector rod 40.

[0040] In the initial state, the lower end surface of the upper top ring 13 is higher than the highest position of the unlocking rod 33 during the movement of the upper pressing member 30, and the upper end surface of the lower top ring 14 is lower than the lowest position of the second rod 42 during the movement of the ejector rod 40.

[0041] Reference Figures 1 - 3 、 Figure 10 and Figure 11, a feeding assembly for adding catalyst particles into the extrusion cavity 21 is installed on the base frame 10. The feeding assembly includes a feeding bucket 50 installed on the base frame 10. A storage bucket 51 for adding catalyst particles into the feeding bucket 50 through a pipeline is installed on the base frame 10. The lower end face of the feeding bucket 50 is attached to the top end face of the extrusion cavity 21. The bottom of the feeding bucket 50 has a feeding hole 501 for feeding into the extrusion cavity 21. A plurality of pushing plates 52 are rotatably arranged in the feeding bucket 50. A second motor 54 for driving the pushing plates 52 to rotate is installed on the base frame 10. The lower end of the pushing plate 52 has a feeding member 53 for feeding the catalyst particles in the feeding bucket 50 into the extrusion cavity 21. The feeding member 53 is elastic. The rotation direction of the turntable 20 is the same as that of the pushing plate 52, and the rotation speed of the pushing plate 52 is greater than that of the turntable 20. The front side of the feeding member 53 along the rotation direction of the pushing plate 52 has an inclined pressing surface 531. Therefore, during the rotation of the pushing plate 52, the pushing plate 52 can push the catalyst particles in the feeding bucket 50 into the feeding hole 501. When the extrusion cavity 21 on the turntable 20 moves below the feeding hole 501, the catalyst particles can fall into the extrusion cavity 21, and the feeding member 53 can force the catalyst particles into the extrusion cavity 21 through the pressing surface 531 to ensure that the amount of catalyst particles in each extrusion cavity 21 is relatively uniform.

[0042] A discharge pipe 19 is fixedly arranged on the base frame 10. A guide plate 191 for guiding the material ejected from the extrusion cavity 21 by the ejector rod 40 into the discharge pipe 19 is arranged on the discharge pipe 19. The guide plate 191 is located above the top end face of the extrusion cavity 21.

[0043] Specific working principle: Refer to Figures 1 - 11 , when producing columnar catalyst products, in the initial state: the lower end face of the upper top ring 13 is higher than the highest position during the movement of the unlocking rod 33 along with the upper pressing member 30. The upper end face of the lower top ring 14 is lower than the lowest position during the movement of the second rod 42 along with the ejector rod 40. The ejector rod 40 is located in the extrusion cavity 21. When the lower guide wheel 401 moves in the fourth guide groove 122, the upper end face of the ejector rod 40 is lower than the upper end face of the extrusion cavity 21. When the lower guide wheel 401 moves in the third guide groove 121, the upper end face of the ejector rod 40 is flush with the upper end face of the extrusion cavity 21. When the upper guide wheel 301 moves in the first guide groove 111, the upper pressing member 30 always remains at the same height, and the lower end of the upper pressing member 30 is higher than the top end of the extrusion cavity 21. The lower end of the upper pressing member 30 is higher than the feeding bucket 50. During the process of the feeding assembly adding catalyst particles into the extrusion cavity 21, the lower guide wheel 401 is always in the fourth guide groove 122, and the upper guide wheel 301 is always in the first guide groove 111.

[0044] Control the operation of the first motor 16 and the second motor 54 so that the turntable 20 rotates clockwise (viewed from top to bottom along the axial direction of the turntable 20), and the pusher plate 52 rotates clockwise. During this process, taking one upper pressing member 30 and the corresponding upper pressing member 30 as an example, after the feeding assembly adds catalyst particles to the extrusion cavity 21, as the turntable 20 rotates, the upper guide wheel 301 will enter the second guide groove 112, and the upper pressing member 30 will slide downward and then upward relative to the turntable 20 to realize the extrusion of the particles in the extrusion cavity 21. When the upper guide wheel 301 leaves the second guide groove 112 and enters the first guide groove 111, the lower guide wheel 401 enters the third guide groove 121 from the fourth guide groove 122, thereby ejecting the formed catalyst product in the extrusion cavity 21. Subsequently, the guide plate 191 can guide the catalyst product into the discharge pipe 19 and discharge it.

[0045] When producing a ring-shaped catalyst product, first control the driving member 15 to move the upper top ring 13 downward and the lower top ring 14 upward, so that the upper top ring 13 can always keep abutting against the unlocking rod 33 on the upper pressing member 30 that moves into the second guide groove 112, and the lower top ring 14 can always keep abutting against the second rod 42 on the ejector rod 40 that moves to the position corresponding to the upper and lower of the second guide groove 112. At this time, the unlocking rod 33 entering the inner ring side of the upper top ring 13 can be pushed by the upper top ring 13 towards the direction close to the limiting rod 32 so that the end of the limiting rod 32 is flush with the side surface of the mating portion 312. When the second rod 42 abuts against the upper end surface of the lower top ring 14, the second rod 42 can extend upward out of the upper end surface of the ejector rod 40 and be flush with the upper end of the extrusion cavity 21. It should be noted that since the lower top ring 14 has a certain length, when the ejector rod 40 moves below the blanking hole 501, the second rod 42 in the ejector rod 40 has already extended upward out of the upper end surface of the ejector rod 40.

[0046] Control the operation of the first motor 16 and the second motor 54 so that the turntable 20 rotates clockwise (viewed from top to bottom along the axis of the turntable 20), and the pusher plate 52 rotates clockwise. During this process, taking one of the upper pressing members 30 and the corresponding upper pressing member 30 as an example, after the feeding assembly adds catalyst particles to the extrusion chamber 21, as the turntable 20 rotates, the upper guide wheel 301 will enter the second guide groove 112, and the upper pressing member 30 will slide downward and then upward relative to the turntable 20. During this process, since the first rod 31 in the upper pressing member 30 is unlocked by the unlocking rod 33, when the upper pressing member 30 moves downward and abuts against the catalyst particles in the extrusion chamber 21, the second rod 42 can push the first rod 31 so that the first rod 31 can move upward relative to the upper pressing member 30, thereby realizing the extrusion of the catalyst particles. Subsequently, when the upper guide wheel 301 leaves the second guide groove 112 and enters the first guide groove 111, the lower guide wheel 401 enters the third guide groove 121 from the fourth guide groove 122, the second rod 42 disengages from the lower top ring 14 and returns to a state flush with the upper end surface of the ejector rod 40. The ejector rod 40 can move upward to eject the formed catalyst product in the extrusion chamber 21. Subsequently, the guide plate 191 can guide the catalyst product into the discharge pipe 19 and discharge it.

[0047] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A catalyst preparation device, comprising a base frame, characterized in that: A turntable is rotatably provided on the base frame, a plurality of upper pressing pieces are arranged at intervals along the circumference of the turntable, the upper pressing pieces are slidably connected to the turntable, and push rods corresponding to the upper pressing pieces are slidably provided on the turntable, an upper guide for driving the upper pressing pieces to move up and down and a lower guide for driving the push rods to move up and down are fixedly provided on the base frame, an extrusion cavity cooperating with the upper pressing pieces and the push rods is provided on the turntable, and a feeding assembly for adding catalyst particles into the extrusion cavity is installed on the base frame; A rod 1 is slidably provided in the upper pressing piece through an elastic piece 1, a limit rod cooperating with the upper pressing piece is slidably provided on the rod 1 through an elastic piece 2, an unlocking rod cooperating with the limit rod is slidably provided on the upper pressing piece, a rod 2 is slidably provided in the ejector rod through an elastic piece 4, an upper ejector ring and a lower ejector ring are slidably provided on the base frame, a driving member for driving the upper ejector ring to move is provided on the base frame, and when the upper ejector ring moves downward, the upper ejector ring can stop against the unlocking rod to disengage the rod 1 from the upper pressing piece, and the lower ejector ring can move upward and stop against the rod 2, so that the rod 2 extends upward out of the ejector rod; When the turntable rotates, the upper pressing piece can move downward to extrude the catalyst particles in the extrusion chamber, and then the upper pressing piece can move upward and the ejector rod can move upward to eject the material in the extrusion chamber.

2. A catalyst preparation device according to claim 1, characterized in that: The upper guide member is coaxially arranged with the turntable, and a guide groove 1 and a guide groove 2 which are connected end to end are opened on the outer periphery of the upper guide member, and an upper guide wheel which cooperates with the guide groove 1 and the guide groove 2 is rotatably arranged on the upper pressure member.

3. A catalyst preparation device according to claim 1, characterized in that: The lower guide member is coaxially arranged with the turntable, and a guide groove three and a guide groove four are opened on the outer periphery of the lower guide member. The guide groove three and the guide groove four are connected through a transition groove, and a lower guide wheel cooperating with the guide groove three, the guide groove four and the transition groove is rotatably arranged on the top rod.

4. A catalyst preparation device according to claim 1, characterized in that: The unlocking rod is connected to the upper pressing piece through elastic piece three. A limiting hole cooperating with the limiting rod and the unlocking rod is opened in the upper pressing piece. When the limiting rod enters the limiting hole, the rod one and the upper pressing piece are locked with each other, and the lower end surface of the rod is flush with the lower end surface of the upper pressing piece.

5. A catalyst preparation device according to claim 1, characterized in that: A slide groove is provided in the push rod along its axial direction, and a matching block matching with the slide groove is provided on the outer periphery of the second rod. When the matching block abuts against the bottom of the slide groove, the upper end surface of the second rod is flush with the upper end surface of the push rod.

6. A catalyst preparation device according to claim 1, characterized in that: The upper top ring is provided with an upper rack, the lower top ring is provided with a lower rack, a gear one meshing with the upper rack is rotatably provided on the base frame, and a gear two meshing with the lower rack is coaxially fixed at one end of the gear one.

7. A catalyst preparation device according to claim 6, characterized in that: The module of gear one is greater than that of gear two. The lower end of the upper top ring has a guide surface one that cooperates with the unlocking rod. The two ends of the upper top ring along its length extension direction respectively have guide surfaces two that cooperate with the unlocking rod. The lower top ring has a guide surface three at one end along its length extension direction.

8. A catalyst preparation device according to claim 1, characterized in that: The feeding assembly includes a feeding barrel installed on a base frame, the lower end surface of the feeding barrel is in contact with the top end surface of the extrusion chamber, the bottom of the feeding barrel is provided with a feeding hole for feeding into the extrusion chamber, a plurality of pushing plates are rotatably arranged in the feeding barrel, and the lower end of the pushing plate is provided with a feeding piece for feeding the catalyst particles in the feeding barrel into the extrusion chamber.

9. A catalyst preparation device according to claim 1, characterized in that: The rotating disk is provided with an upper sliding hole for sliding of the upper pressing piece and a lower sliding hole for sliding of the push rod. The outer periphery of the upper pressing piece is provided with an upper sliding block matched with the upper sliding hole, and the outer periphery of the push rod is provided with a lower sliding block matched with the lower sliding hole.

10. A catalyst preparation device according to any one of claims 1 to 9, characterized in that: A motor 1 is installed on the base frame, a reducer is installed on the output end of the motor 1, the turntable is connected to the output end of the reducer, a feed pipe is provided on the base frame, and a guide plate is provided on the feed pipe for guiding the material ejected from the extrusion cavity by the ejector rod into the feed pipe.

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