Compression molding device for solid columnar catalyst

Abstract

The utility model provides a compression molding device for a solid columnar catalyst, which belongs to the technical field of catalyst preparation and comprises a machine body and a molding die. The forming die comprises a circular-truncated-cone-shaped pressing rotary table, a plurality of upper punches and a plurality of lower punches, wherein the upper punches and the lower punches are oppositely arranged in the vertical direction. A plurality of die holes which penetrate in the vertical direction and are arranged in the circumferential direction to form an annular pressing track are evenly distributed in the pressing rotary table. The die hole comprises an upper die hole and a lower die hole which are integrally formed, the height of the upper die hole is 1 / 10 of that of the die hole, and the upper die hole is of a big-end-up trumpet-shaped structure; the inner diameter of the lower die hole is the same as the diameter of the punch part of the upper punch and the diameter of the punch part of the lower punch, the lower inner diameter of the upper die hole is the same as the inner diameter of the lower die hole, and the upper inner diameter of the upper die hole is 0.05-0.3 mm larger than the inner diameter of the lower die hole; a forming cavity is defined by the upper punch, the lower punch and the lower die hole together. The pressing mold hole of the device is convenient and easy to demold, the wear of the forming mold is small, the service life of the forming mold is prolonged, and the demolding quality and the use effect of the columnar catalyst are also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of catalyst preparation, in particular to a pressing and molding device for solid columnar catalysts. Background Art

[0002] A catalyst is a substance that changes the reaction rate without altering the overall standard Gibbs free energy. In chemical production, catalysts play a crucial role in accelerating chemical reactions. Solid catalysts are widely used in modern industrial production, facilitating efficient and normal operation of production systems. Columnar catalysts are particularly popular due to their large contact area and ease of loading.

[0003] In the prior art, a tablet press is generally used as a pressing and molding device for solid columnar catalysts. The main working process of the tablet press is as follows: a powdered or granular catalyst raw material is delivered to the die hole on the pressing turntable in the forming mold through a feeding mechanism, and then, during the rotation of the pressing turntable, the raw material in the die hole is pressed into a columnar catalyst of circular, square or other shapes by the upper punch and the lower punch in the forming mold that match the die hole size. However, when the existing catalyst tablet press is pressed, since the upper and lower apertures of the die hole are the same, during the demoulding process when the lower punch presses the molded columnar catalyst to the upper surface of the pressing turntable, the friction between the columnar catalyst and the die hole is large, resulting in the columnar catalyst being inconvenient to demould, not convenient to use, and the wear of the forming mold is also large, which is easily affected by this. At the same time, the columnar catalyst will also have burrs and dust due to friction during demoulding, affecting the quality and use effect of the columnar catalyst. Utility Model Content

[0004] The utility model provides a pressing and molding device for a solid columnar catalyst, which is used to solve the problems of inconvenient demoulding of existing pressing die holes, large wear of the molding die, burrs and dust caused by friction during demoulding, etc., which affect the quality and use effect of the columnar catalyst.

[0005] Specifically, the utility model provides a pressing and molding device for a solid columnar catalyst, comprising a machine body, a molding die arranged on the machine body, and a driving mechanism for driving the molding die to move; the molding die comprises: a truncated cone-shaped pressing turntable and a plurality of upper punches and a plurality of lower punches arranged relatively in the up-down direction; a plurality of die holes penetrating in the up-down direction are uniformly distributed on the pressing turntable, and the plurality of die holes are circumferentially arranged to form an annular pressing track; the die holes comprise an upper die hole and a lower die hole formed in one piece, the height of the upper die hole is 1 / 10 of the height of the die hole, and the upper die hole is It is a trumpet-shaped structure that is larger at the top and smaller at the bottom, and the lower die hole is a cylindrical structure; the inner diameter of the lower die hole is the same as the diameter of the punch part of the upper punch and the lower punch, the lower inner diameter of the upper die hole is the same as the inner diameter of the lower die hole, and the upper inner diameter of the upper die hole is 0.05-0.3mm larger than the inner diameter of the lower die hole; the upper punch, the lower punch and the lower die hole of the die hole corresponding to the upper and lower punches together form a forming cavity, and the pressing and forming is achieved by the relative movement of the upper punch and the lower punch in the forming cavity; and the lower punch can be driven by the driving mechanism to push the formed columnar catalyst upward out of the die hole to achieve the separation of the columnar catalyst from the die hole.

[0006] Optionally, a discharge baffle is provided at the discharge port of the pressing turntable, and the discharge port is connected to the receiving box through a discharge channel obliquely arranged on the side of the pressing turntable; the discharge channel includes a bottom plate, and two side plates arranged on opposite sides of the bottom plate, and the bottom plate and the side plates together form a long groove with a U-shaped cross-section; a dust removal section is provided on the side of the discharge channel close to the discharge port, and a plurality of dust suction holes are distributed on the bottom plate of the dust removal section, and a dust hood is correspondingly provided under the bottom plate of the dust removal section, and the dust hood is connected to the inlet of the vacuum cleaner below through a dust suction pipe.

[0007] Optionally, a plurality of support rods are provided between the dust suction pipe and the machine body, and the plurality of support rods are fixedly connected to the dust suction hood and the dust suction pipe to fix and support the dust suction hood and the dust suction pipe.

[0008] Optionally, a top plate parallel to the bottom plate is provided above the long groove of the discharge channel to close the upper opening of the discharge channel.

[0009] Optionally, a pushing mechanism is also fixed to the inclined high end of the top plate, and the pushing mechanism is arranged at the discharge port; the pushing mechanism includes a support plate parallel to the pressing turntable, and a pushing motor is arranged at the center position above the support plate, and the output end of the pushing motor is connected to the pushing wheel under the support plate through a connecting shaft, and the pushing wheel abuts against the upper surface of the pressing turntable.

[0010] Optionally, a plurality of pushing racks are circumferentially arranged on the side of the pushing wheel, and each pushing rack is vertically abutted against the discharge baffle.

[0011] Optionally, the rotation direction of the pushing wheel and the pushing rack is set opposite to the rotation direction of the pressing turntable.

[0012] Optionally, the propulsion motor adopts a reduction motor.

[0013] The compacting and molding device for solid columnar catalysts provided by the utility model improves the molding die on the basis of a rotary tablet press without affecting its original operation and running process. The upper punch, the lower punch and the die hole cooperate with each other, which can avoid the problem of large resistance when the upper punch and the die hole move relative to each other due to excessive sealing between the upper punch and the die hole, and is beneficial to improving the compacting operation efficiency and the compacting effect in the molding cavity, and can facilitate the demolding of the columnar catalyst after molding, reducing the friction and wear between the molded catalyst and the mold, which is beneficial to improving the service life of the molding die, and also improving the demolding quality and use effect of the columnar catalyst. At the same time, after demolding, the next columnar catalyst can be directly processed and produced, the production process is automatic and continuous, and the production efficiency is high.

[0014] The discharge channel provided in the device can suck out the dust during the pressing and demolding process, thereby greatly reducing the dust entrained in the molded catalyst, achieving full separation of the catalyst and catalyst powder after molding, increasing the convenience of raw material recovery, improving the quality of columnar catalysts, avoiding waste and loss of raw materials, and preventing powder from accumulating in the discharge channel and affecting the discharge speed.

[0015] The pushing mechanism in the device is used in conjunction with the discharge baffle at the discharge port, which can quickly push the formed columnar catalyst into the discharge channel and then collect it in the receiving box. It has a simple structure and reasonable design. It can apply thrust to the columnar catalyst at the discharge baffle and quickly remove the formed columnar catalyst from the forming mold, thereby achieving efficient and smooth discharge, reducing the possibility of the columnar catalyst clogging the discharge port and the feed port of the discharge channel, and improving production efficiency.

[0016] The device can complete the compression molding operation of powdered or granular raw materials. Therefore, it is not only limited to the compression of solid columnar catalysts, but can also be used for the production of tablet products (such as tablets, flaky foods, etc.) in the pharmaceutical, chemical, food and other industries. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the structure and operation of the forming die of the compression molding device in the present invention;

[0019] Figure 2It is a schematic diagram of the structure and connection of the pressing turntable, discharge port and discharge channel;

[0020] Figure 3 It is a schematic diagram of the structure and connection of the discharge channel and the dust removal equipment related to the dust removal section;

[0021] Figure 4 This is a schematic structural diagram of the material pushing mechanism in the present utility model;

[0022] Figure 5 This is a schematic diagram of the positions of the discharge baffle, push wheel, and push rack.

[0023] Description of reference numerals:

[0024] 1-pressing turntable, 2-upper punch, 3-lower punch, 4-die hole, 5-molding cavity, 6-material receiving box, 7-discharge channel, 11-discharge baffle, 41-upper die hole, 42-lower die hole, 71-bottom plate, 72-side plate, 73-top plate, 74-dust suction hole, 81-dust suction hood, 82-dust suction pipe, 83-vacuum cleaner, 84-support rod, 91-support plate, 92-propelling motor, 93-propelling wheel, 94-connecting shaft, 95-propelling rack. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts also fall within the scope of protection of the present invention.

[0026] like Figure 1 and Figure 2The present invention provides a pressing and molding device for a solid columnar catalyst, comprising a machine body, a molding die arranged on the machine body, and a driving mechanism for driving the molding die to move; the molding die comprises: a truncated cone-shaped pressing turntable 1 and a plurality of upper punches 2 and a plurality of lower punches 3 arranged relatively in the up-down direction; a plurality of mold holes 4 are uniformly distributed on the pressing turntable 1 and pass through in the up-down direction, and the plurality of mold holes 4 are arranged circumferentially to form a ring-shaped pressing track; the mold hole 4 comprises an upper mold hole 41 and a lower mold hole 42 formed in one piece, the height of the upper mold hole 41 is 1 / 10 of the height of the mold hole 4, and the upper mold hole 41 is larger at the top and smaller at the bottom. The trumpet-shaped structure is that the lower die hole 42 is a cylindrical structure; the inner diameter of the lower die hole 42 is the same as the diameter of the punch part of the upper punch 2 and the lower punch 3, the lower inner diameter of the upper die hole 41 is the same as the inner diameter of the lower die hole 42, and the upper inner diameter of the upper die hole 41 is 0.05-0.3mm larger than the inner diameter of the lower die hole 42; the upper and lower corresponding upper punches 2, lower punches 3 and the lower die hole 42 of the die hole 4 together form a forming cavity 5, and the pressing and forming is realized by the relative movement of the upper punch 2 and the lower punch 3 in the forming cavity 5; and the lower punch 3 is driven by the driving mechanism to push the formed columnar catalyst upward out of the die hole 4 to realize the separation of the columnar catalyst from the die hole 4.

[0027] In the present invention, the compression molding device includes the body of a rotary tablet press in the prior art, and a forming die arranged on the body, a feeding mechanism is also provided on the body, and a driving mechanism (such as a pressing wheel, a guide rail, a compression roller, a motor, etc.) for driving the pressing turntable 1 in the forming die to rotate and driving the upper punch 2 and the lower punch 3 to perform lifting movements, and also includes electrical appliances and peripheral parts. The structures except the forming die are all commonly used structures in the prior art, which are not shown in the accompanying drawings and are not described here. The structure and shape of the upper punch 2 and the lower punch 3 of the present invention are existing commonly used structures, and the end faces of the punch parts of the upper punch 2 and the lower punch 3 form the surface shape of the columnar catalyst, and the inner diameter of the lower die hole 42 is the diameter of the columnar catalyst. The die hole 4 can be circular, square or other special shapes (such as polygonal and curved), and the end face shape of the punch part of the upper punch 2 and the lower punch 3 can be flat, concave, convex, etc. The specific shape and height of the die hole 4 and the end face shape and convexity of the punch part of the upper punch 2 and the lower punch 3 can be adjusted and customized according to production needs, and no special restrictions are made here.

[0028] The catalyst raw material flows into the die hole 4 through the feeding mechanism through the rotation of the pressing turntable 1. At the same time, when the pressing turntable 1 rotates, the upper punch 2 and the lower punch 3 move up and down along with the driving mechanism, so that the upper punch 2, the lower punch 3 and the die hole 4 in the forming mold can slide freely relative to each other. During the pressing process, the upper punch 2 and the lower punch 3 move relative to each other in the forming cavity 5, pressing the powdered or granular catalyst filled in the die hole 4 into a columnar shape. After the pressing is completed, the upper punch 2 withdraws from the die hole 4 under the drive of the driving mechanism, and the lower punch 3 pushes the columnar catalyst upward and pushes it out of the die hole 4 to facilitate demolding and discharge. Since the inner diameter of the upper die hole 41 is larger than the inner diameter of the lower die hole 42, during the demolding process, the pressing turntable 1 with a larger weight and volume is fixed, and when the columnar catalyst is pushed from the lower die hole 42 to the upper die hole 41 by the lower punch 3, there is a larger gap between the columnar catalyst and the upper die hole 41, which facilitates its demolding. The operation is simple and reliable, and the friction and wear between the molded catalyst and the mold are reduced, which is beneficial to improving the service life of the molding mold. At the same time, it also avoids burrs or dust formed by the friction between the two, and improves the demolding quality and use effect of the columnar catalyst. Secondly, the aperture of the upper die hole 41 is inconsistent with that of the lower die hole 42, which can also avoid the problem of large resistance when the upper punch 2 and the die hole 4 move relative to each other due to excessive sealing between the upper punch 2 and the die hole 4, which is more conducive to improving the efficiency of the pressing molding operation and the pressing effect in the molding cavity 5.

[0029] The discharge mechanism of an existing tablet press is generally a discharge baffle 11. When the columnar catalyst rotates to the discharge port, it is intercepted and guided by the discharge baffle 11, and then moves to the discharge channel 7 for discharge under the action of centrifugal force and the mutual compression between the catalysts. However, due to the gap between the upper die hole 41 and the upper punch 2, powder is easily attached to the columnar catalyst, and powder will also escape to the surface of the pressing turntable 1 during the feeding and pressing processes. If these powders are not recovered, dust will easily escape and raw materials will be wasted, or powder will accumulate in the discharge channel 7 and affect the discharge speed. Therefore, if Figure 2-Figure 4 Optionally, a discharge baffle 11 is provided at the discharge port of the pressing turntable 1, and the discharge port is connected to the receiving box 6 through a discharge channel 7 obliquely arranged on the side of the pressing turntable 1; the discharge channel 7 includes a bottom plate 71 and two side plates 72 arranged on opposite sides of the bottom plate 71, and the bottom plate 71 and the side plates 72 together form a long groove with a U-shaped cross section; a dust removal section is provided on the side of the discharge channel 7 close to the discharge port, and a plurality of dust suction holes 74 are evenly distributed on the bottom plate 71 of the dust removal section, and a dust collection hood 81 is correspondingly provided under the bottom plate 71 of the dust removal section, and the dust collection hood 81 is connected to the inlet of the dust collector 83 below through a dust collection pipe 82.

[0030] After the columnar catalyst is intercepted by the discharge baffle 11, it enters the receiving box 6 through the discharge channel 7. When the columnar catalyst passes through the dust removal section of the discharge channel 7, the powder attached to the columnar catalyst and the unpressed powder are sucked into the dust hood 81 through the dust suction holes 74 on the bottom plate 71 under the suction action of the dust collector 83, and then collected in the dust collector 83 through the dust suction pipe 82, and finally sent back to the feeding mechanism for further pressing and molding. The structure and equipment of the dust removal section cooperate with each other to greatly reduce the dust entrained in the molded catalyst, realize the full separation of the catalyst and the catalyst powder after molding, improve the dust suction work efficiency and dust suction effect, improve the quality of the columnar catalyst, avoid waste and loss of raw materials, and prevent powder from accumulating in the discharge channel 7 and affecting the discharge speed.

[0031] The discharge baffle 11 is a common structure in tablet presses and is not specifically limited here. The bottom plate 71 and side plates 72 forming the elongated trough can be welded or integrally cast. The cross-section of the elongated trough is not limited to a U-shape and can also have other shapes. A screening machine or other commonly used equipment in the field can also be installed between the material receiving box 6 and the discharge channel 7 according to actual production needs.

[0032] like Figure 3 Optionally, a plurality of support rods 84 are provided between the dust suction tube 82 and the machine body, and the plurality of support rods 84 are fixedly connected to the dust suction hood 81 and the dust suction tube 82 to achieve the fixing and supporting effect of the dust suction hood 81 and the dust suction tube 82.

[0033] like Figure 4 Optionally, a top plate 73 parallel to the bottom plate 71 is provided above the long groove of the discharge channel 7 to close the upper opening of the discharge channel 7. The top plate 73 closes the upper portion of the discharge channel 7, thereby preventing powder from escaping to the upper portion of the discharge channel 7 during the discharge process and increasing the effective efficiency of dust collection.

[0034] In the prior art, the columnar catalysts are mainly formed by centrifugal force and mutual extrusion between the catalysts to achieve the purpose of discharge. However, when the volume of the columnar catalyst is large, or when the tablet press needs to be controlled in a slower production mode, the centrifugal force or extrusion force is insufficient, and the columnar catalyst is prone to clogging the discharge port, affecting the discharge efficiency and production efficiency. Figure 4 Optionally, a pusher mechanism is fixed to the inclined high end of the top plate 73, and the pusher mechanism is arranged at the discharge port; the pusher mechanism includes a support plate 91 parallel to the pressing turntable 1, and a push motor 92 is arranged at the center position above the support plate 91. The output end of the push motor 92 is connected to a push wheel 93 below the support plate 91 through a connecting shaft 94, and the push wheel 93 abuts against the upper surface of the pressing turntable 1. Figure 5 A plurality of pushing racks 95 are circumferentially arranged around the side of the pushing wheel 93 , and each pushing rack 95 is vertically abutted against the discharge baffle 11 .

[0035] The pushing mechanism is arranged at the discharge port, specifically, at the intersection of the discharge port and the discharge channel 7, and is mainly used to apply a pushing force to the catalyst at the discharge port. The support plate 91 can be arranged above the discharge baffle 11 so as to push the catalyst intercepted by the discharge baffle 11 into the discharge channel 7. The pushing wheel 93 is in contact with the upper surface of the pressing turntable 1, and the pushing motor 92 drives the pushing wheel 93 to rotate through the connecting shaft 94. The pushing rack 95 of the pushing wheel 93 is in vertical contact with the discharge baffle 11. During the rotation process, the pushing rack 95 can apply a pushing force to the catalyst at the discharge port and the discharge baffle 11, pushing it into the discharge channel 7, accelerating the discharge speed of the catalyst, achieving smooth discharge, reducing the possibility of the catalyst blocking the discharge port and the feed port of the discharge channel 7, and ensuring production efficiency.

[0036] The support plate 91 and the top plate 73 can be removably fixed by screws, pins, or welding. The number and shape of the pushing racks 95 (which can be triangular, trapezoidal, rectangular, etc.) can be selected according to the type and size of the columnar catalyst, as long as the driving wheel 93 can apply thrust to the columnar catalyst when it rotates.

[0037] To ensure efficient discharge, the propulsion wheel 93 and propulsion rack 95 can optionally rotate in the opposite direction to that of the pressing turret 1. This rotational direction propels and guides the columnar catalyst toward the discharge channel 7, facilitating smoother discharge and effectively preventing tablet accumulation. The rotational speed of the propulsion wheel 93 must match that of the pressing turret 1 to ensure smooth discharge. The specific rotational speed should be adjusted based on actual production conditions.

[0038] To improve the reliability of the pusher mechanism, a reduction motor can optionally be used as the pusher motor 92. The reduction motor can be a small motor for ease of installation and use. The operation of the pusher mechanism can be controlled by an existing electrical control system. During automatic production operation of the device, the electrical control system activates the pusher motor 92 according to the discharge command, pushing the formed columnar catalyst out of the discharge port and into the discharge channel 7.

[0039] The present invention discloses a compacting device for solid columnar catalysts. Taking the production of R134a synthesis catalyst as an example, the columnar catalyst is required to be cylindrical and sized 5×5 mm. In operation, a mixed catalyst feedstock containing chromium salt and other metal salts is fed into a feed mechanism. The drive mechanism is activated, which rotates a compacting turntable 1, causing the catalyst feedstock to flow through the feed mechanism into the die hole 4 on the compacting turntable 1. Simultaneously, as the compacting turntable 1 rotates, the upper punch 2 and lower punch 3 move upward and downward with the drive mechanism, allowing the upper punch 2 and lower punch 3 in the forming die to slide freely relative to the die hole 4. The upper punch 2 and lower punch 3 compress the powdered or granular catalyst filled in the die hole 4 into a columnar shape within the forming cavity 5 formed by the upper punch 2 and lower punch 3 and the lower die hole 42. After compaction is completed, the upper punch 2 exits the die hole 4 under the drive mechanism, while the lower punch 3 moves upward and pushes the columnar catalyst out of the die hole 4, completing the automatic demolding process. Among them, the inner diameter of the lower die hole 42 of the die hole 4 is the same as the diameter of the punch part of the upper punch 2 and the lower punch 3, both of which are 5 mm. The lower inner diameter of the upper die hole 41 is the same as the inner diameter of the lower die hole 42, and the upper inner diameter of the upper die hole 41 is 5.2 mm (the upper inner diameter can also be set to other values).

[0040] After demolding, the columnar catalyst rotates with the pressing turntable 1 to the discharge port, is intercepted by the discharge baffle 11, and enters the receiving box 6 through the discharge channel 7. The pushing mechanism set at the intersection of the discharge port and the discharge channel 7 is activated, and the pushing motor 92 drives the pushing wheel 93 to rotate through the connecting shaft 94. The pushing rack 95 of the pushing wheel 93 abuts the discharge baffle 11. During the rotation process, the pushing rack 95 rotates in the opposite direction of the rotation direction of the pressing turntable 1, which can apply a thrust to the columnar catalyst at the discharge baffle 11, pushing it into the discharge channel 7, thereby accelerating the discharge speed of the catalyst. When the columnar catalyst passes through the dust removal section of the closed discharge channel 7 formed by the bottom plate 71, the side plate 72 and the top plate 73, the powder attached to the catalyst and the unpressed powder are sucked into the dust hood 81 through the dust suction holes 74 on the bottom plate 71 under the suction action of the dust collector 83, and are collected in the dust collector 83 through the dust suction pipe 82, and finally sent back to the feeding mechanism to be pressed and formed again.

[0041] It should be noted that the detailed structure of some devices is not described in detail in this utility model, but belongs to the prior art known to those skilled in the art, so it will not be repeated here. In addition, the parts not described in this device are the same as the prior art or can be implemented by using the prior art.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A solid columnar catalyst pressing and molding device, characterized in that: The invention comprises a machine body, a forming die arranged on the machine body, and a driving mechanism for driving the forming die to move; the forming die comprises: a truncated cone-shaped pressing turntable and a plurality of upper punches and a plurality of lower punches arranged relatively in the up-down direction; a plurality of die holes penetrating in the up-down direction are evenly distributed on the pressing turntable, and the plurality of die holes are arranged circumferentially to form an annular pressing track; the die holes comprise an upper die hole and a lower die hole formed integrally, the height of the upper die hole is 1 / 10 of the height of the die hole, and the upper die hole is a trumpet-shaped structure with a larger upper part and a smaller lower part, and the lower die hole is a cylindrical structure; The inner diameter of the lower die hole is the same as the diameter of the punch part of the upper punch and the lower punch, the lower inner diameter of the upper die hole is the same as the inner diameter of the lower die hole, and the upper inner diameter of the upper die hole is 0.05-0.3mm larger than the inner diameter of the lower die hole; the upper punch, the lower punch and the lower die hole of the die hole corresponding to each other form a molding cavity together, and the compression molding is realized by the relative movement of the upper punch and the lower punch in the molding cavity; and the lower punch can be driven by the driving mechanism to push the formed columnar catalyst upward out of the die hole to realize the separation of the columnar catalyst from the die hole.

2. The solid columnar catalyst pressing and molding device according to claim 1, characterized in that: A discharge baffle is provided at the discharge port of the pressing turntable, and the discharge port is connected to the receiving box through a discharge channel obliquely arranged on the side of the pressing turntable; the discharge channel includes a bottom plate, and two side plates arranged on opposite sides of the bottom plate, and the bottom plate and the side plates together form a long groove with a U-shaped cross-section; a dust removal section is provided on the side of the discharge channel close to the discharge port, and a plurality of dust suction holes are evenly distributed on the bottom plate of the dust removal section, and a dust hood is correspondingly provided under the bottom plate of the dust removal section, and the dust hood is connected to the inlet of the vacuum cleaner below through a dust suction pipe.

3. The solid columnar catalyst pressing and molding device according to claim 2, characterized in that: A plurality of support rods are arranged between the dust suction pipe and the machine body, and the plurality of support rods are fixedly connected to the dust suction hood and the dust suction pipe to achieve the fixing and supporting function of the dust suction hood and the dust suction pipe.

4. The solid columnar catalyst pressing and molding device according to claim 2, characterized in that: A top plate parallel to the bottom plate is arranged above the long groove of the discharge channel and is used to close the upper opening of the discharge channel.

5. The solid columnar catalyst pressing and molding device according to claim 4, characterized in that: A pushing mechanism is also fixedly connected to the inclined high end of the top plate, and the pushing mechanism is arranged at the discharge port; the pushing mechanism includes a support plate parallel to the pressing turntable, and a pushing motor is arranged at the center position above the support plate, and the output end of the pushing motor is connected to the pushing wheel under the support plate through a connecting shaft, and the pushing wheel abuts against the upper surface of the pressing turntable.

6. The solid columnar catalyst pressing and molding device according to claim 5, characterized in that: A plurality of pushing racks are circumferentially arranged on the side surface of the pushing wheel, and each of the pushing racks is vertically abutted against the discharge baffle.

7. The solid columnar catalyst pressing and molding device according to claim 6, characterized in that: The rotation direction of the driving wheel and the driving rack is opposite to the rotation direction of the pressing turntable.

8. The solid columnar catalyst pressing and molding device according to claim 5, characterized in that: The driving motor is a reduction motor.

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