Catalyst carrier regular forming system and method

Abstract

The invention relates to the technical field of catalyst carrier production, and discloses a catalyst carrier regular forming system and method.The system comprises a strip extruding device, a conveying device, a fixed-length cutting device, a row cutting device and a strip conveying and shifting device, the strip conveying and stirring device comprises a pushing plate arranged on one side of the conveying device, a strip rolling plate arranged on the other side of the conveying device and a buffer arranged on the strip rolling plate, the pushing plate can push the catalyst carrier material strip sections to the strip rolling plate, the strip rolling plate is obliquely arranged, the catalyst carrier material strip sections are conveyed to the discharging and cutting device, and the discharging and cutting device cuts the catalyst carrier material strip sections. The buffer has a closed state and an open state, so that the movement speeds of all parts of the catalyst carrier material strip section are the same. According to the technical scheme, continuity and automation of regular forming of the catalyst carrier can be realized, and the working efficiency is improved; in addition, it is guaranteed that the movement speeds of all the parts are the same, the parts can finally reach the cutting device at the same time, and then the regularity of obtained catalyst carrier particles is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of catalyst carrier production, and particularly to a catalyst carrier regular shaping system. On this basis, the present invention also relates to a method for regularly shaping a catalyst carrier. Background Art

[0002] Supported catalysts play a crucial role in industries such as chemical engineering, pharmaceuticals, energy, and environmental protection, mainly including stages such as powder blending and mud preparation, carrier shaping and calcination, and impregnation activation of catalyst active components. Among them, carrier shaping is an important part of the production of supported catalysts, and the regularity and dimensional consistency of carrier shaping have a very important impact on physical properties such as the bulk density and strength of the carrier and the industrial performance of the catalyst.

[0003] Currently, the supported catalyst mainly adopts the extrusion molding method, which generally has problems such as low levels of automation and integration rate, insufficient output, and irregular carriers produced. Summary of the Invention

[0004] The purpose of the present invention is to overcome one of the above problems existing in the prior art, and to provide a catalyst carrier regular shaping system and method.

[0005] To achieve the above object, a catalyst carrier regular shaping system according to a first aspect of the present invention includes: an extrusion device for processing a catalyst carrier blank into a catalyst carrier strip having a predetermined shape, the extrusion device including an extruder, an extrusion die head connected to an output end of the extruder, and a shaping die sealingly connected to an outlet end of the extrusion die head; a conveying device for conveying the catalyst carrier strip processed by the extrusion device; a fixed-length cutting device for cutting the catalyst carrier strip conveyed by the conveying device into catalyst carrier strip segments of a predetermined length; a row cutting device for row cutting the catalyst carrier strip segments into catalyst carrier particles of a predetermined size; and a conveying and pushing strip device for conveying the catalyst carrier strip segments of a predetermined length on the conveying device to the row cutting device, the conveying and pushing strip device including a pushing plate disposed on one side of the conveying device, a rolling strip plate disposed on the other side of the conveying device, and a buffer disposed on the rolling strip plate; wherein the pushing plate can push the catalyst carrier strip segments of a predetermined length on the conveying device to the rolling strip plate, the rolling strip plate is inclined so as to be able to convey the catalyst carrier strip segments to the row cutting device disposed below the rolling strip plate, the buffer is set to have a closed state and an open state, when in the closed state, the buffer can block the movement of the catalyst carrier strip segments towards the row cutting device; when in the open state, the buffer can enable the catalyst carrier strip segments to move towards the row cutting device so that the movement speeds of the respective parts of the catalyst carrier strip segments are the same.

[0006] The catalyst carrier regular forming system provided by the present invention processes a catalyst carrier blank into a catalyst carrier strip through an extrusion device. A conveying device conveys the catalyst carrier strip processed by the extrusion device. A fixed-length cutting device performs fixed-length cutting on the catalyst carrier strip on the conveying device to obtain a catalyst carrier strip segment of a predetermined length. A conveying and pushing device pushes the obtained catalyst carrier strip segment of a predetermined length to a cutting and discharging device, so that the catalyst carrier strip segment of a predetermined length is cut into catalyst carrier particles of a predetermined size, thereby completing the cutting and regular forming of the catalyst carrier. In the present invention, through the mutual cooperation among the extrusion device, the conveying device, the fixed-length cutting device, the conveying and pushing device, and the cutting and discharging device, the entire catalyst carrier forming process can be realized continuously and automatically, improving the working efficiency of catalyst carrier forming. In addition, a pushing plate is used to push the cut catalyst carrier strip segment of a predetermined length to a rolling strip plate. The rolling strip plate is inclined, which can reduce the risk of low qualified rate of the finally cut product caused by too fast movement speed during the process of pushing the catalyst carrier strip segment to the cutting and discharging device. At the same time, a buffer is provided on the rolling strip plate. When the buffer is in the closed state, it can block the movement of the catalyst carrier strip segment of a predetermined length towards the cutting and discharging device. In this way, even if there is a speed difference between different parts of the catalyst carrier strip segment of a predetermined length during the movement on the rolling strip plate, it will be at the same horizontal line due to the buffer. When the buffer is in the open state, the catalyst carrier strip segment of a predetermined length continues to move towards the cutting and discharging device. Since at this time, different parts of the catalyst carrier strip segment of a predetermined length start to move from the same horizontal line and from a stationary state, the movement speeds of different parts are guaranteed to be the same, and finally they reach the cutting and discharging device at the same time, thereby improving the regularity of the obtained catalyst carrier particles.

[0007] Preferably, the buffer includes a buffer plate, and the buffer plate is arranged to be in an open state under the action of the gravity of the catalyst carrier strip segment to allow the catalyst carrier strip segment to move towards the cutting and discharging device.

[0008] Preferably, the conveying and pushing device further includes a rolling roller arranged under the rolling strip plate, and the rolling roller can extrude the catalyst carrier strip segment falling from the rolling strip plate along the direction towards the cutting and discharging device.

[0009] Preferably, the cutting and discharging device includes a cutting knife device for cutting the catalyst carrier strip segment into catalyst carrier particles of a predetermined size, a tool cleaning device for cleaning the cutting knife device of the cutting knife device, and / or a tool lubricating device for lubricating the cutting knife device of the cutting knife device.

[0010] Preferably, the fixed-length cutting device includes a fixed-length cutting equipment and a cutting laser sensor that are sequentially arranged along the conveying direction of the conveying device. Among them, the fixed-length cutting equipment cuts the catalyst carrier strip into catalyst carrier strip segments of a predetermined length according to the induction signal of the cutting laser sensor.

[0011] Preferably, the conveying and pushing strip device further includes a pushing laser sensor arranged downstream of the fixed-length cutting device along the conveying direction of the conveying device. The driving equipment of the pushing plate drives the pushing plate to push the catalyst carrier strip segment to the punching and cutting device according to the induction signal of the pushing laser sensor.

[0012] Preferably, the catalyst carrier regular shaping system provided by the present invention further includes a straightening device arranged between the shaping die and the fixed-length cutting device to reduce the deformation of the catalyst carrier strip during the conveying process.

[0013] Preferably, a cooling unit is arranged in the extrusion die head to reduce the temperature in the extrusion die head.

[0014] Preferably, the extrusion die head has two outlet ends. The shaping die includes a first shaping die and a second shaping die that are hermetically connected to the two outlet ends respectively. The conveying device includes a first conveying device for conveying the catalyst carrier strip formed by processing the first shaping die and a second conveying device for conveying the catalyst carrier strip formed by processing the second shaping die. The fixed-length cutting device includes a first fixed-length cutting device for cutting the catalyst carrier strip conveyed by the first conveying device into catalyst carrier strip segments of a predetermined length and a second fixed-length cutting device for cutting the catalyst carrier strip conveyed by the second conveying device into catalyst carrier strip segments of a predetermined length. The punching and cutting device includes a first punching and cutting device for cutting the catalyst carrier strip segments formed by the first fixed-length cutting device into catalyst carrier particles of a predetermined size and a second punching and cutting device for cutting the catalyst carrier strip segments formed by the second fixed-length cutting device into catalyst carrier particles of a predetermined size. The conveying and pushing strip device includes a first conveying and pushing strip device for conveying the catalyst carrier strip segments on the first conveying device to the first punching and cutting device and a second conveying and pushing strip device for conveying the catalyst carrier strip segments on the second conveying device to the second punching and cutting device.

[0015] Preferably, the first conveying device includes a first conveyor belt, and the second conveying device includes a second conveyor belt.

[0016] The second aspect of the present invention provides a method for regular shaping of a catalyst carrier. This shaping method uses the above-mentioned catalyst carrier regular shaping system and includes the following steps:

[0017] S1. Process the catalyst carrier blank into a catalyst carrier strip.

[0018] S2. Cut the catalyst carrier strip into segments of a predetermined length.

[0019] S3. Push the segments of the catalyst carrier strip of the predetermined length to a cutting device so that the segments of the catalyst carrier strip are cut into catalyst carrier particles of a predetermined size.

[0020] Wherein, in step S3, a buffer provided on a roller strip plate is used to make the moving speeds of all parts of the segments of the catalyst carrier strip the same. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of a highly integrated catalyst carrier regular forming system provided by the present invention;

[0022] Figure 2 is a schematic structural diagram of a conveying and guiding strip device and a cutting device provided by the present invention.

[0023] Description of the Reference Numerals

[0024] 1-1, driving motor; 1-2, speed reducer; 1-3, feeding hopper; 1-4, extrusion equipment; 2, extrusion die head; 3-11, first forming die; 3-12, second forming die; 4-11, first straightening device; 4-12, second straightening device; 5-11, first fixed-length cutting equipment; 5-12, second fixed-length cutting equipment; 5-21, first laser sensor; 5-22, second laser sensor; 6-11, first conveyor belt; 6-12, second conveyor belt; 7-11, first conveying and guiding strip device; 7-12, second conveying and guiding strip device; 7-2, roller strip plate; 7-3, buffer; 7-4, roller; 8-01, first cutting device; 8-02, second cutting device; 8-1, tool cleaning equipment; 8-2, tool lubricating equipment; 8-3, knife arranging equipment; 8-4, third conveyor belt. Detailed Embodiments

[0025] The following further describes in detail the embodiments of the present invention in conjunction with the drawings and embodiments. The detailed description and drawings of the following embodiments are used to exemplarily illustrate the principle of the present invention, but cannot be used to limit the scope of the present invention. The present invention can be implemented in many different forms, not limited to the specific embodiments disclosed in the text, but including all technical solutions falling within the scope of the claims.

[0026] These embodiments of the present invention are provided to make the present invention thorough and complete, and to fully convey the scope of the present invention to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, the compositions of materials, numerical expressions and values set forth in these embodiments should be construed as merely exemplary, and not as limitations.

[0027] It should be noted that in the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present invention. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0028] In addition, the "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different parts. The terms "comprising" or "including" and the like mean that the elements preceding the term cover the elements enumerated after the term, and do not exclude the possibility of also covering other elements.

[0029] It should also be noted that in the description of the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a direct connection, or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. When it is described that a specific device is located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0030] All terms used in the present invention have the same meanings as those understood by those of ordinary skill in the art to which the present invention pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as those defined in a general dictionary, should be construed to have a meaning consistent with their meaning in the context of the relevant art, and should not be construed in an idealized or overly formal sense, unless specifically defined as such here.

[0031] Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods and devices should be regarded as part of the specification.

[0032] The present invention mainly aims at the problems of low automation and integration level, insufficient output, and irregular carriers produced in the prior art for the regular shaping of catalyst carriers, and provides a system and method for the regular shaping of catalyst carriers.

[0033] Referring to Figure 1 and Figure 2 In a first aspect of the present invention, a system for the regular shaping of catalyst carriers is provided, including: an extruding device for processing a catalyst carrier blank into a catalyst carrier strip with a predetermined shape, the extruding device including an extruder, an extrusion die head 2 connected to the output end of the extruder, and a forming die sealingly connected to the outlet end of the extrusion die head 2; a conveying device for conveying the catalyst carrier strip processed by the extruding device; a fixed-length cutting device for cutting the catalyst carrier strip conveyed by the conveying device into catalyst carrier strip segments with a predetermined length; a row cutting device for row cutting the catalyst carrier strip segments into catalyst carrier particles with a predetermined size; and a conveying and pushing device for conveying the catalyst carrier strip segments with a predetermined length cut on the conveying device to the row cutting device, the conveying and pushing device including a pushing plate provided on one side of the conveying device, a rolling strip plate 7-2 provided on the other side of the conveying device, and a buffer 7-3 provided on the rolling strip plate 7-2; wherein, the pushing plate can push the catalyst carrier strip segments with a predetermined length cut on the conveying device to the rolling strip plate 7-2, the rolling strip plate 7-2 is inclined to be able to convey the catalyst carrier strip segments to the row cutting device provided below the rolling strip plate 7-2, the buffer 7-3 is set to have a closed state and an open state, when in the closed state, the buffer 7-3 can block the movement of the catalyst carrier strip segments towards the row cutting device; when in the open state, the buffer 7-3 can enable the catalyst carrier strip segments to move towards the row cutting device so that the movement speeds of the various parts of the catalyst carrier strip segments are the same.

[0034] In the present invention, a catalyst carrier blank is processed by an extrusion device to form a catalyst carrier strip. A conveying device conveys the catalyst carrier strip processed by the extrusion device. A fixed-length cutting device cuts the catalyst carrier strip on the conveying device to obtain a catalyst carrier strip segment of a predetermined length. A conveying and pushing strip device pushes the obtained catalyst carrier strip segment of a predetermined length to a cutting and arranging device, so that the catalyst carrier strip segment of a predetermined length is cut into catalyst carrier particles of a predetermined size, thereby completing the cutting and regular shaping of the catalyst carrier. In the present invention, through the mutual cooperation among the extrusion device, the conveying device, the fixed-length cutting device, the conveying and pushing strip device and the cutting and arranging device, the entire catalyst carrier shaping process can be realized continuously and automatically, improving the working efficiency of catalyst carrier shaping. In addition, a pushing plate is used to push the cut catalyst carrier strip segment of a predetermined length to a rolling strip plate. The rolling strip plate is inclined, which can reduce the risk that the qualification rate of the finally cut product is low due to too fast movement speed during the process of pushing the catalyst carrier strip segment to the cutting and arranging device. At the same time, a buffer is arranged on the rolling strip plate. When the buffer is in the closed state, it can block the movement of the catalyst carrier strip segment of a predetermined length towards the cutting and arranging device. In this way, even if there is a speed difference between parts during the movement of the catalyst carrier strip segment of a predetermined length on the rolling strip plate, it will be on the same horizontal line due to the buffer. When the buffer is in the open state, the catalyst carrier strip segment of a predetermined length continues to move towards the cutting and arranging device. Since at this time, all parts of the catalyst carrier strip segment of a predetermined length start to move from the same horizontal line and from a stationary state, the movement speeds of all parts are guaranteed to be the same, and finally they reach the cutting and arranging device at the same time, thereby improving the regularity of the obtained catalyst carrier particles.

[0035] Preferably, the pushing plate can be a long strip plate, and its length is greater than the length of the catalyst carrier strip segment to ensure that the catalyst carrier strip segment can be pushed to the rolling strip plate 7-2.

[0036] In addition, in some alternative embodiments of the present invention, the pushing plate can be connected to a rotating shaft and can be rotated clockwise or counterclockwise to realize pushing the catalyst carrier strip segment from the conveying device to the rolling strip plate 7-2.

[0037] Or, preferably, one side of the pushing plate is connected to a cylinder through a push rod, and under the drive of the cylinder, the catalyst carrier strip segment is pushed from the conveying device to the rolling strip plate 7-2.

[0038] Preferably, the buffer 7-3 includes a buffer plate, which has an open state and a closed state. Among them, the top of the buffer plate can be connected to a lifting mechanism. When the lifting mechanism rises, it drives the buffer plate to rise. At this time, the buffer plate is in the open state to allow the catalyst carrier strip segment to move towards the cutting device. When the lifting mechanism descends and the bottom of the buffer plate abuts against the roller plate 7-2, the buffer plate is in the closed state, thereby blocking the movement of the catalyst carrier strip segment towards the cutting device.

[0039] Alternatively, in some alternative embodiments, referring to Figure 2 , the top of the buffer plate is connected to a rope, and one end of the rope is fixedly connected, so that the buffer plate can swing. The buffer plate is arranged to swing under the gravity of the catalyst carrier strip segment, so as to be in the open state to allow the catalyst carrier strip segment to move towards the cutting device. It should be noted that when the catalyst carrier strip segment moves towards the cutting device on the roller plate 7-2, there may be a situation where one end of the catalyst carrier strip segment moves faster than the other end. When the faster-moving end reaches the buffer plate first, the buffer plate is still in the closed state at this time, so the buffer plate can block the faster-moving end from continuing to move towards the cutting device. When the slower-moving other end also reaches the buffer plate, the buffer plate swings under the gravity of the catalyst carrier strip segment, so that the buffer plate is in the open state to allow the catalyst carrier strip segment to continue to move towards the cutting device. Through the buffering effect of the buffer plate, the speed difference between the various parts of the catalyst carrier strip segment can be reduced, and finally the various parts of the catalyst carrier strip segment reach the cutting device at the same time, thereby improving the regularity of the catalyst carrier forming.

[0040] Preferably, a plurality of buffers 7-3 are provided on the roller plate 7-2. Through the plurality of buffers 7-3, the uniformity of the movement speeds of the various parts of the catalyst carrier strip segment on the roller plate 7-2 can be further improved, and finally the qualified rate of the product can be improved.

[0041] Preferably, the inclination angle of the roller plate 7-2 is 35°-60°, so that the catalyst carrier strip segment can smoothly move from the roller plate 7-2 to the cutting device, and at the same time, the movement speed of the catalyst carrier strip segment can be prevented from being too fast, thereby affecting the regularity of the catalyst carrier forming.

[0042] Preferably, in order to cut the catalyst carrier strip segment into catalyst carrier particles of a predetermined size, referring to Figure 2 , the conveying and pushing bar device further includes a rolling roller 7-4 provided below the roller plate 7-2. Among them, when the rolling roller 7-4 is in the working state, it rotates continuously, so as to squeeze the catalyst carrier strip segment falling from the roller plate 7-2 in the direction towards the cutting device, so that the cutting device can achieve a better cutting effect.

[0043] In addition, the extruder may preferably be a single screw extruder. Figure 1 The extruder includes a driving motor 1-1, a reducer 1-2, a feeding funnel 1-3 and an extrusion device 1-4. The feeding funnel 1-3 is used to add catalyst carrier blanks to the extrusion device 1-4. The driving motor 1-1 and the reducer 1-2 cooperate to drive the extrusion device 1-4 to operate and complete the processing of the catalyst carrier blanks.

[0044] Preferably, the inlet end of the extrusion die 2 is sealed and connected to the output end of the extrusion equipment 1-4, and the diameter of the extrusion die 2 gradually decreases from the inlet end of the extrusion die 2 toward the outlet end, so that the pressure of the cavity in the extrusion die 2 gradually increases from the inlet end of the extrusion die 2 toward the outlet end, which is beneficial to further stabilize the shape of the catalyst carrier blank processed in the extrusion equipment 1-4 in the extrusion die 2.

[0045] In some optional embodiments, the cutting device may use laser cutting equipment or high-pressure gas to cut the catalyst carrier material strips into catalyst carrier particles of a predetermined size.

[0046] Or, preferably, refer to Figure 2 The cutting device may include a cutting device 8-3 for cutting the catalyst carrier material strip into catalyst carrier particles of a predetermined size. The cutting device 8-3 includes a plurality of cutting tools arranged along the length direction of the catalyst carrier material strip, and the plurality of cutting tools complete the cutting of the catalyst carrier material strip by rotating.

[0047] The tool may be made of ceramic, cemented carbide, high-speed steel and high-carbon steel, preferably high-carbon steel and high-speed steel.

[0048] In addition, preferably, the cutting device may also include a tool cleaning device 8-1 for cleaning the tool arrangement device 8-3. The tool cleaning device 8-3 is arranged between multiple tools and contacts the side of the tool. The mud residue adhering to the tool is cleaned by the rotation of the tool.

[0049] The tool cleaning device 8 - 3 may include a sponge, a rubber sheet, a bristle brush, a stainless steel sheet and a hard steel brush. Preferably, the tool cleaning device may include a sponge, a plastic brush and a stainless steel sheet.

[0050] In addition, refer to Figure 2 The row cutting device may further include a tool lubricating device 8-2 for lubricating the row cutting device 8-3. The tool lubricating device 8-2 may include an oil inlet pipeline for conveying a lubricating substance to the surface of the tool, wherein the tool lubricating material may be white oil, vaseline and paraffin, preferably white oil. Lubricating the tool by the tool lubricating device 8-2 can ensure the cutting effect of the tool, thereby obtaining catalyst carrier particles of a predetermined size.

[0051] Preferably, a third conveyor belt 8-4 for conveying catalyst carrier particles of a predetermined size is further provided below the tool post device 8-3. The catalyst carrier particles are conveyed to a designated position for collection by the third conveyor belt 8-4, and after drying and calcination, catalyst carrier finished products are formed.

[0052] Preferably, the fixed-length cutting device includes a fixed-length cutting equipment and a cutting laser sensor sequentially arranged along the conveying direction of the conveying device. Among them, the fixed-length cutting equipment cuts the catalyst carrier strip into catalyst carrier strip segments of a predetermined length according to the induction signal of the cutting laser sensor. Among them, the fixed-length cutting equipment can use high-pressure gas for cutting, or the fixed-length cutting equipment is preferably a mechanical blade.

[0053] Of course, the fixed-length cutting equipment is not limited to cutting according to the induction signal of the laser sensor. It is also possible to adjust the coordination relationship between the frequency of extruding the catalyst carrier strip by the extrusion device and the cutting frequency of the fixed-length cutting equipment, so as to obtain catalyst carrier strip segments of a predetermined length.

[0054] In addition, preferably, the conveying and pushing strip device further includes a pushing laser sensor arranged downstream of the fixed-length cutting device along the conveying direction of the conveying device. The driving device of the pushing plate drives the pushing plate to push the catalyst carrier strip segment to the row cutting device according to the induction signal of the pushing laser sensor. Among them, the driving device can be a cylinder pneumatically connected to the pushing plate through a push rod, or a motor rotationally connected to the pushing plate through a rotating shaft. Of course, the driving device is not limited to driving the pushing plate to push the catalyst carrier strip segment to the row cutting device according to the induction signal of the pushing laser sensor. It is also possible to realize pushing the catalyst carrier strip segment to the row cutting device through the coordination relationship between the cutting frequency of the fixed-length cutting equipment and the frequency of the driving device driving the pushing plate.

[0055] Preferably, the catalyst carrier regular shaping system provided by the present invention further includes a straightening device arranged between the shaping die and the fixed-length cutting device to reduce the deformation generated by the catalyst carrier strip during the conveying process. Among them, the straightening device can adopt a baffle-type track, a round tube-type track or other shaped tracks, and is specifically adjusted according to the shape of the catalyst carrier strip processed by the extrusion device.

[0056] Preferably, a cooling unit is arranged in the extrusion die head 2 to reduce the temperature in the extrusion die head 2. Since the diameter of the extrusion die head 2 gradually decreases from its inlet end to its outlet end, when the catalyst carrier blank moves towards the shaping die, the friction force it receives gradually increases, resulting in a relatively high temperature in the extrusion die head 2. Arranging a cooling unit in the extrusion die head 2 is beneficial to reducing the temperature in the extrusion die head 2 and preventing the excessive evaporation of moisture in the catalyst carrier blank due to too high a temperature, resulting in the inability of the catalyst carrier blank to be extruded from the shaping die and ultimately the inability to obtain the catalyst carrier strip.

[0057] Preferably, the shape of the forming die can be single-hole cylindrical, multi-hole cylindrical or cloverleaf-shaped. Adjust the shape of the forming die according to actual production requirements.

[0058] Preferably, in order to further improve the regular forming efficiency of the catalyst carrier, in the catalyst carrier regular forming system provided by the present invention, with reference to Figure 1 , the extrusion die head 2 has two outlet ends, the forming die includes a first forming die 3-11 and a second forming die 3-12 that are respectively hermetically connected to the two outlet ends, the conveying device includes a first conveying device for conveying the catalyst carrier strip formed by processing the first forming die 3-11 and a second conveying device for conveying the catalyst carrier strip formed by processing the second forming die 3-12, the fixed-length cutting device includes a first fixed-length cutting device for cutting the catalyst carrier strip conveyed by the first conveying device into catalyst carrier strip segments of a predetermined length and a second fixed-length cutting device for cutting the catalyst carrier strip conveyed by the second conveying device into catalyst carrier strip segments of a predetermined length, the row cutting device includes a first row cutting device 8-01 for cutting the catalyst carrier strip segments formed by the first fixed-length cutting device into catalyst carrier particles of a predetermined size and a second row cutting device 8-02 for cutting the catalyst carrier strip segments formed by the second fixed-length cutting device into catalyst carrier particles of a predetermined size, and the strip conveying device includes a first strip conveying device 7-11 for conveying the catalyst carrier strip segments on the first conveying device to the first row cutting device 8-01 and a second strip conveying device 7-12 for conveying the catalyst carrier strip segments on the second conveying device to the second row cutting device 8-02. By providing two sets of forming dies, conveying devices, fixed-length cutting devices, strip conveying devices and row cutting devices, the regular forming efficiency of the catalyst carrier can be improved to a greater extent. At the same time, the two sets of forming dies are respectively hermetically connected to the two outlet ends of the extrusion die head 2, which can make the whole system structure compact and reduce the occupied space of the device.

[0059] Among them, the first conveying device and the second conveying device can adopt a linear motor and a conveying platform, or other conveying methods to realize the conveying of the catalyst carrier strip. Preferably, the first conveying device includes a first conveyor belt 6-11, and the second conveying device includes a second conveyor belt 6-12.

[0060] Preferably, the first fixed-length cutting device includes a first fixed-length cutting device 5-11 and a first laser sensor 5-21 that are sequentially arranged along the conveying direction of the first conveying device, and the second fixed-length cutting device includes a second fixed-length cutting device 5-12 and a first laser sensor 5-22 that are sequentially arranged along the conveying direction of the second conveying device.

[0061] Of course, preferably, with reference to Figure 1, the straightening device includes a first straightening device 4-11 and a second straightening device 4-12. Among them, the first straightening device 4-11 is arranged between the first forming die 3-11 and the first fixed-length cutting device, and the second straightening device 4-12 is arranged between the second forming die 3-12 and the second fixed-length cutting device.

[0062] The second aspect of the present invention provides a method for regular molding of a catalyst carrier. This method uses the above-mentioned catalyst carrier regular molding system and includes the following steps:

[0063] S1, processing the catalyst carrier blank into a catalyst carrier strip;

[0064] S2, cutting the catalyst carrier strip into catalyst carrier strip segments of a predetermined length;

[0065] S3, pushing the catalyst carrier strip segments of a predetermined length to the row cutting device so that the catalyst carrier strip segments are cut into catalyst carrier particles of a predetermined size;

[0066] Among them, in step S3, a buffer provided on the roller strip plate is used to make the movement speeds of all parts of the catalyst carrier strip segments the same, and finally improve the regularity of the catalyst carrier molding.

[0067] The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, including any suitable combination of each specific technical feature. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods. But these simple modifications and combinations should also be regarded as the content disclosed by the present invention and all fall within the protection scope of the present invention.

Claims

1. A catalyst carrier regular shaping system, characterized in that, it includes: An extrusion device, which is used to process a catalyst carrier blank into a catalyst carrier strip with a predetermined shape, and includes an extruder, an extrusion die head (2) connected to the output end of the extruder, and a forming die sealingly connected to the outlet end of the extrusion die head (2); A conveying device, which is used to convey the catalyst carrier strip processed by the extrusion device; A fixed-length cutting device, which is used to cut the catalyst carrier strip conveyed by the conveying device into catalyst carrier strip segments with a predetermined length; A row cutting device, which is used to row cut the catalyst carrier strip segments into catalyst carrier particles with a predetermined size; and, A strip conveying and shifting device, which is used to convey the catalyst carrier strip segments with a predetermined length cut on the conveying device to the row cutting device. The strip conveying and shifting device includes a pushing plate arranged on one side of the conveying device, a rolling bar plate (7-2) arranged on the other side of the conveying device, and a buffer (7-3) arranged on the rolling bar plate (7-2); wherein, the pushing plate can push the catalyst carrier strip segments with a predetermined length cut on the conveying device to the rolling bar plate (7-2), and the rolling bar plate (7-2) is inclined to be able to convey the catalyst carrier strip segments to the row cutting device arranged below the rolling bar plate (7-2). The buffer (7-3) is set to have a closed state and an open state. When in the closed state, the buffer (7-3) can block the movement of the catalyst carrier strip segments towards the row cutting device; when in the open state, the buffer (7-3) can enable the catalyst carrier strip segments to move towards the row cutting device so that the movement speeds of all parts of the catalyst carrier strip segments are the same.

2. The catalyst carrier regular shaping system according to claim 1, characterized in that, the buffer (7-3) includes a buffer plate, and the buffer plate is set to be in an open state under the action of the gravity of the catalyst carrier strip segments to allow the catalyst carrier strip segments to move towards the row cutting device.

3. The catalyst carrier regular shaping system according to claim 1, characterized in that, the strip conveying and shifting device further includes a rolling roller (7-4) arranged below the rolling bar plate (7-2), and the rolling roller (7-4) can extrude the catalyst carrier strip segments falling from the rolling bar plate (7-2) in the direction towards the row cutting device.

4. The catalyst carrier regular shaping system according to claim 1, characterized in that, the row cutting device includes a row cutting device (8-3) for row cutting the catalyst carrier strip segments into catalyst carrier particles with a predetermined size, a tool cleaning device (8-1) for cleaning the row cutting device (8-3), and / or a tool lubricating device (8-2) for lubricating the row cutting device (8-3).

5. The catalyst carrier regular shaping system according to claim 1, characterized in that, The fixed-length cutting device includes a fixed-length cutting equipment and a cutting laser sensor that are sequentially arranged along the conveying direction of the conveying device. Among them, the fixed-length cutting equipment cuts the catalyst carrier strip into catalyst carrier strip segments of a predetermined length according to the induction signal of the cutting laser sensor.

6. The catalyst carrier regular shaping system according to claim 1, wherein, the strip conveying device further includes a pushing laser sensor arranged downstream of the fixed-length cutting device along the conveying direction of the conveying device. The driving device of the pushing plate drives the pushing plate to push the catalyst carrier strip segment to the row cutting device according to the induction signal of the pushing laser sensor.

7. The catalyst carrier regular shaping system according to claim 1, wherein, it further includes a straightening device arranged between the shaping die and the fixed-length cutting device to reduce the deformation of the catalyst carrier strip during the conveying process.

8. The catalyst carrier regular shaping system according to claim 1, wherein, a cooling unit is arranged in the extrusion die head (2) to reduce the temperature in the extrusion die head (2).

9. The catalyst carrier regular shaping system according to claim 1, wherein, the extrusion die head (2) has two outlet ends. The shaping die includes a first shaping die (3-11) and a second shaping die (3-12) that are respectively hermetically connected to the two outlet ends. The conveying device includes a first conveying device for conveying the catalyst carrier strip formed by processing the first shaping die (3-11) and a second conveying device for conveying the catalyst carrier strip formed by processing the second shaping die (3-12). The fixed-length cutting device includes a first fixed-length cutting device for cutting the catalyst carrier strip conveyed by the first conveying device into catalyst carrier strip segments of a predetermined length and a second fixed-length cutting device for cutting the catalyst carrier strip conveyed by the second conveying device into catalyst carrier strip segments of a predetermined length. The row cutting device includes a first row cutting device (8-01) for cutting the catalyst carrier strip segments formed by the first fixed-length cutting device into catalyst carrier particles of a predetermined size and a second row cutting device (8-02) for cutting the catalyst carrier strip segments formed by the second fixed-length cutting device into catalyst carrier particles of a predetermined size. The strip conveying device includes a first strip conveying device (7-11) for conveying the catalyst carrier strip segments on the first conveying device to the first row cutting device (8-01) and a second strip conveying device (7-12) for conveying the catalyst carrier strip segments on the second conveying device to the second row cutting device (8-02); Preferably, the first conveying device includes a first conveyor belt (6-11), and the second conveying device includes a second conveyor belt (6-12).

10. A method for regular shaping of a catalyst carrier, wherein, Using the catalyst carrier regular shaping system according to any one of claims 1-9, comprising the following steps: S1, processing a catalyst carrier blank into a catalyst carrier strip; S2, cutting the catalyst carrier strip into catalyst carrier strip segments of a predetermined length; S3, pushing the catalyst carrier strip segments of a predetermined length to a row cutting device, so that the catalyst carrier strip segments are cut into catalyst carrier particles of a predetermined size; wherein, in step S3, a buffer provided on a roller strip plate is used to make the movement speeds of the respective parts of the catalyst carrier strip segments the same.

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