Automatic replacement device for extrusion hole plate modules

Abstract

The present application relates to the field of extruding equipment, and discloses an automatic replacement device of an extruding hole plate module, which comprises a module removal frame, an extruding hole plate, a module filling pipe and a pressing rod arranged in sequence and capable of approaching or moving away from each other; the end face of the module removal frame close to the extruding hole plate is provided with a ejector head for ejecting an old module in the extruding hole of the extruding hole plate; the extruding hole, the module filling pipe and the pressing rod are arranged one by one, and the pressing rod is arranged to be capable of extending into the module filling pipe and pressing a new module into the extruding hole; through the automatic replacement device, the module in the extruding hole plate can be automatically replaced mechanically, the labor intensity of the staff at the post is reduced, the replacement time is reduced, the product quality of the catalyst is stabilized, and the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to extrusion equipment, and more specifically to an automatic replacement device for an extrusion orifice plate module. Background Technology

[0002] The production process of solid catalysts mainly includes steps such as mixing, rolling, extruding, drying and calcining solid powder and liquid raw materials, loading of metal active components, and drying and calcining of the catalyst after loading. Among them, the extrusion stage gives the solid catalyst a certain shape, size and mechanical strength to meet the requirements of catalytic reactor and catalytic reaction process for low reaction pressure drop, high dispersion of active components and high heat and mass transfer efficiency. Therefore, the solid catalyst forming process is of great significance in catalyst preparation.

[0003] Currently, the extrusion molding of hydrogenation catalysts in domestic and international production mainly relies on horizontal extruders. The extrusion process can be briefly described as follows: a pre-mixed and uniformly kneaded material is extruded through a plastic module of a specific shape and size by the extrusion pusher shaft to obtain a wet catalyst carrier strip. The plastic module is installed inside the extrusion orifice plate, which is then mounted on the extrusion head of the extruder via a plate frame.

[0004] Since the main raw materials for hydrogenation catalysts are alumina, molecular sieves, and acidic kneading liquid, these materials are subjected to strong extrusion pressure during the extrusion process, generating a large amount of heat and steam that affects the shape and size of the plastic module. Simultaneously, the high hardness of alumina and molecular sieves can cause varying degrees of clogging or wear on the plastic module, leading to changes in the shape and size of the extruded strip. Furthermore, fluctuations in the dry basis of the raw materials cause variations in the conditions of the extrusion molding section.

[0005] For the reasons mentioned above, frequent replacement of extrusion modules is required during the actual production of hydrogenation catalysts to ensure that the catalyst dimensions meet the reactor requirements. The traditional process for replacing plastic modules in an extruder can be summarized as follows: 1. Stop the extruder; 2. After the extruder stops, manually disassemble and open the extrusion orifice plate frame, and remove the extrusion orifice plate; 3. Remove the used module from the extrusion orifice plate and reinstall the replacement module; 4. Manually install the extrusion orifice plate and tighten the frame; 5. Restart the extruder.

[0006] It is evident that manually replacing the extrusion module increases the labor intensity of the staff, and the longer replacement time affects the stability of catalyst product quality and production efficiency. Summary of the Invention

[0007] The purpose of this invention is to overcome the problems of low catalyst product quality stability and low production efficiency caused by the high labor intensity and long replacement time of employees manually replacing extrusion strip modules in the existing technology. The invention provides an automatic replacement device for extrusion strip orifice plate modules. This automatic replacement device can mechanically and automatically replace the modules in the extrusion strip orifice plate, reduce the labor intensity of employees in this position, reduce replacement time, stabilize the product quality of catalyst, and improve production efficiency.

[0008] To achieve the above objectives, the present invention provides an automatic replacement device for extrusion strip perforated plate modules. The automatic replacement device includes a module removal frame, an extrusion strip perforated plate, a module filling tube, and a pressure bar arranged sequentially and capable of approaching or moving away from each other.

[0009] The module removal frame is provided with a pusher on the end face near the extrusion plate for ejecting the old module from the extrusion hole in the extrusion plate.

[0010] The extrusion hole is provided in a one-to-one correspondence with the module filling tube and the pressure rod. The pressure rod is configured to extend into the module filling tube and press the new module into the extrusion hole.

[0011] Preferably, the module removal frame and the pressure rod are fixedly connected to the sliding groove plate at the bottom, the module filling tube is slidably connected to the sliding groove plate, and the extrusion strip perforated plate is fixedly suspended above the sliding groove plate.

[0012] Preferably, one end of the sliding groove plate is provided with a power device for driving the sliding groove plate to move along the axial direction of the extrusion strip perforated plate.

[0013] Preferably, the power unit is a cylinder.

[0014] Preferably, the sliding groove plate is also provided with a module collection groove for receiving old modules.

[0015] Preferably, the automatic replacement device further includes a rotating mechanism connected to the extrusion plate, the rotating mechanism being configured to drive the extrusion plate into or out of the module for disassembly and assembly.

[0016] Preferably, the rotating mechanism includes a rotating component and a plurality of connecting components circumferentially spaced on the rotating component. Each connecting component has an extrusion plate at its end, and the plurality of extrusion plates are equidistant from the rotating component.

[0017] Preferably, the rotating component is a rotary motor, and the extrusion plate is fixedly connected to the output shaft of the rotary motor via the connecting component.

[0018] Preferably, the rotary motor is fixedly mounted on the column, and the connecting member includes two symmetrically arranged connecting rods.

[0019] Preferably, the plurality of extrusion strip perforated plates are arranged at equal intervals in the circumferential direction of the rotating shaft.

[0020] With the above technical solution, when using the automatic replacement device to replace the module in the extrusion plate, the module removal frame is first driven to quickly approach the extrusion plate, so that the top head on the module removal frame enters the corresponding extrusion hole and pushes out the old module in the extrusion hole. Then the module removal frame is reset and moved away from the extrusion plate.

[0021] Next, the module filling tube and the pressure bar move closer to the extrusion plate, and each module filling tube aligns tightly with the corresponding extrusion hole. After the module filling tube is tightly attached to the extrusion plate, the module filling tube stops moving, while the pressure bar continues to move closer to the module filling tube, so that each pressure bar presses the new module in the corresponding module filling tube into the corresponding extrusion hole. The module replacement in the extrusion plate is completed. Then, the pressure bar and the module filling tube are reset and moved away from the extrusion plate.

[0022] This automatic replacement device can mechanically and automatically replace the modules inside the extrusion plate, reducing the labor intensity of employees in this position, shortening replacement time, stabilizing the product quality of the catalyst, and improving production efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of one embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the rotating mechanism and the extrusion plate in this invention.

[0025] Explanation of reference numerals in the attached figures

[0026] 1-Module removal frame, 2-Extrusion strip perforated plate, 3-Module filling tube, 4-Pressure rod, 5-Top head, 6-Sliding groove plate, 7-Cylinder, 8-Module collection groove, 9-Rotary motor, 10-Connector, 11-Column. Detailed Implementation

[0027] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0028] In this invention, unless otherwise stated, directional words such as "upper," "lower," "top," "bottom," "far," "near," and "side" contained in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the terminology.

[0029] like Figure 1 As shown, the present invention provides an automatic replacement device for extrusion strip perforated plate modules. The automatic replacement device includes a module removal frame 1, an extrusion strip perforated plate 2, a module filling tube 3, and a pressure rod 4 arranged in sequence and capable of approaching or moving away from each other.

[0030] The module removal frame 1 is provided with a top head 5 on the end face near the extrusion plate 2 for ejecting the old module from the extrusion hole in the extrusion plate 2.

[0031] The extrusion hole, module filling tube 3, and pressure rod 4 are set one-to-one. The pressure rod 4 is designed to extend into the module filling tube 3 and press the new module into the extrusion hole.

[0032] When using this automatic replacement device to replace the module in the extrusion plate 2, the module removal frame 1 is first driven to quickly approach the extrusion plate 2, so that the top head 5 on the module removal frame 1 enters the corresponding extrusion hole and pushes out the old module in the extrusion hole. Then the module removal frame 1 is reset and moved away from the extrusion plate 2.

[0033] Next, the module filling tube 3 and the pressure rod 4 move closer to the extrusion plate 2, and each module filling tube 3 is aligned and tightly attached to the corresponding extrusion hole. After the module filling tube 3 is tightly attached to the extrusion plate 2, the module filling tube 3 stops moving, while the pressure rod 4 continues to move closer to the module filling tube 3, so that each pressure rod 4 presses the new module in the corresponding module filling tube 3 into the corresponding extrusion hole. The module replacement in the extrusion plate 2 is completed. Then, the pressure rod 4 and the module filling tube 3 are reset and moved away from the extrusion plate 2.

[0034] This automatic replacement device can mechanically and automatically replace the modules inside the extrusion plate 2, reducing the labor intensity of employees in this position, reducing replacement time, stabilizing the product quality of the catalyst, and improving production efficiency.

[0035] In this embodiment, the module removal frame 1 and the pressure rod 4 are fixedly connected to the sliding groove plate 6 at the bottom, the module filling tube 3 is slidably connected to the sliding groove plate 6, and the extrusion strip perforated plate 2 is suspended and fixedly installed above the sliding groove plate 6. Uprights can be fixedly connected to the bottom of the module removal frame 1, the pressure rod 4, and the module filling tube 3, and then connected to the sliding groove plate 6 via the uprights. The uprights at the bottom of the module removal frame 1 and the pressure rod 4 are fixedly connected to the upper end of the sliding groove plate 6, and the upright at the bottom of the module filling tube 3 slides in cooperation with the groove on the sliding groove plate 6. Multiple module removal frames 1 and multiple pressure rods 4 are first fixed with honeycomb-type fasteners, and then the fasteners are fixedly connected to the uprights.

[0036] During module replacement, the position of the extrusion plate 2 remains fixed; only the module removal frame 1, module filling tube 3, and pressure rod 4 move relative to the extrusion plate 2. When removing the old module, the driving sliding groove plate 6 moves, causing the module removal frame 1 to approach the extrusion plate 2 and push the old module out; simultaneously, the module filling tube 3 and pressure rod 4 move away from the extrusion plate 2. When filling a new module, the driving sliding groove plate 6 moves, causing the module filling tube 3 and pressure rod 4 to approach the extrusion plate 2. Since the module filling tube 3 is slidably connected to the sliding groove plate, it stops moving after contacting the end face of the extrusion plate 2. At this time, the sliding groove plate 6 drives the pressure rod 4 to approach the module filling tube 3, pressing the new module inside the module filling tube 3 into the extrusion hole of the extrusion plate 2.

[0037] In this embodiment, a power device is provided at one end of the sliding groove plate 6 for driving the sliding groove plate 6 to move along the axial direction of the extrusion plate 2. This power device can drive the sliding groove plate 6 to move closer to or further away from the extrusion plate 2 along the axial direction of the extrusion plate 2.

[0038] In this embodiment, the power unit is a cylinder 7, and the piston rod of the cylinder 7 is fixedly connected to the sliding groove plate 6, which can drive the sliding groove plate 6 to move in a straight line. The power unit can also be a gear and rack mechanism, for example, a rack is installed on the side of the sliding groove plate 6 in a predetermined sliding direction, a gear is installed on the motor shaft, the motor drives the gear to rotate, the motor is fixed, the gear meshes with the rack, drives the rack to move, and thus drives the sliding groove plate 6 to move.

[0039] In this embodiment, the sliding groove plate 6 is also provided with a module collection groove 8 for receiving old modules. After the module removal frame 1 pushes the old modules out of the extrusion plate 2, the old modules will fall into the module collection groove 8, preventing them from scattering. The module collection groove 8 should be located on the front side below the top head 5, and its length should be greater than the thickness of the extrusion plate 2. The module collection groove 8 is fixedly set on the sliding groove plate 6 and moves synchronously with the module removal frame 1. After the old modules are pushed out, they fall exactly into the module collection groove 8. When the module removal frame 1 moves away from the extrusion plate 2, the module collection groove 8 also moves away from the extrusion plate 2, avoiding interference with the module filling tube 3 that is about to approach the extrusion plate 2.

[0040] The module collection slot 8 can be configured as a groove on the sliding groove plate 6, or it can be configured as a collection box fixedly installed on the sliding groove plate 6.

[0041] like Figure 2As shown (the left extrusion plate is in use, and the right extrusion plate is in module replacement state), in this embodiment, the automatic replacement device also includes a rotating mechanism connected to the extrusion plate 2. The rotating mechanism is used to drive the extrusion plate 2 into or out of the module disassembly / removal position. The extrusion plate 2, to which the module needs to be replaced, can be rotated and moved to the module disassembly / removal position using the rotating mechanism. After the module replacement is completed, the extrusion plate 2 can be rotated away from the module disassembly / removal position and directly driven into or wait to be driven into the extrusion position. It should be noted that the sliding groove plate 6 should not be within the rotation radius of the extrusion plate 2 to avoid causing damage to the rotation and movement of the extrusion plate 2. A groove can be cut at the corresponding position of the sliding groove plate 6.

[0042] In this embodiment, the rotating mechanism includes a rotating component and a plurality of connecting components 10 evenly arranged circumferentially on the rotating component. Each connecting component 10 has an extrusion plate 2 at its end, and the distances from the plurality of extrusion plates 2 to the rotating component are equal. The plurality of extrusion plates 2 can be used in conjunction to achieve the effect of changing modules while producing. That is, the extrusion plate 2 at the extrusion position moves away to the module disassembly / assembly position to replace the new module, and at the same time, the extrusion plate 2 at the module disassembly / assembly position moves back to the extrusion position to continue the extrusion operation, further improving the efficiency.

[0043] In this embodiment, the rotating component is a rotary motor 9, and the extrusion plate 2 is fixedly connected to the output shaft of the rotary motor 9 via a connector 10. The rotary motor 9 is preferably a servo motor, which can precisely control the rotation angle.

[0044] In this embodiment, the rotary motor 9 is fixedly mounted on the column 11, and the connector 10 includes two symmetrically arranged connecting rods. The column 11 can raise the mounting position of the rotary motor 9, preventing the extrusion plate 2 from touching the ground when rotating.

[0045] In this embodiment, multiple extrusion strip perforated plates 2 are arranged at equal intervals around the circumference of the rotating shaft, that is, the included angle between any two adjacent connectors 10 should be equal. If there are three connectors 10, the included angle between adjacent connectors 10 is 120°, and if there are four connectors 10, the included angle between adjacent connectors 10 is 90°.

[0046] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the inventive concept, various simple modifications can be made to the technical solutions of the present invention, including combinations of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. An automatic replacement device for an extrusion strip perforated plate module, characterized in that, The automatic replacement device includes a module removal frame (1), an extrusion plate (2), a module filling tube (3), and a pressure bar (4) arranged in sequence and able to move closer or further away from each other. The module removal frame (1) is provided with a top head (5) on the end face near the extrusion plate (2) for ejecting the old module in the extrusion hole of the extrusion plate (2). The extrusion hole, module filling tube (3) and pressure rod (4) are arranged in a one-to-one correspondence. The pressure rod (4) is configured to extend into the module filling tube (3) and press the new module into the extrusion hole. The module removal frame (1) and the pressure rod (4) are fixedly connected to the sliding groove plate (6) at the bottom. The module filling tube (3) is slidably connected to the sliding groove plate (6). The extrusion strip hole plate (2) is suspended and fixedly set above the sliding groove plate (6). The automatic replacement device also includes a rotating mechanism connected to the extrusion plate (2), the rotating mechanism being configured to drive the extrusion plate (2) into or out of the module assembly / disassembly position.

2. The automatic replacement device for the extrusion strip perforated plate module according to claim 1, characterized in that, One end of the sliding groove plate (6) is provided with a power device for driving the sliding groove plate (6) to move along the axial direction of the extrusion strip perforated plate (2).

3. The automatic replacement device for the extrusion strip perforated plate module according to claim 2, characterized in that, The power unit is configured as a cylinder (7).

4. The automatic replacement device for the extrusion strip perforated plate module according to claim 1, characterized in that, The sliding groove plate (6) is also provided with a module collection groove (8) for receiving old modules.

5. The automatic replacement device for the extrusion strip perforated plate module according to claim 1, characterized in that, The rotating mechanism includes a rotating component and a plurality of connecting components (10) circumferentially spaced on the rotating component. Each connecting component (10) has an extrusion plate (2) at its end. The plurality of extrusion plates (2) are equidistant from the rotating component.

6. The automatic replacement device for the extrusion strip perforated plate module according to claim 5, characterized in that, The rotating component is a rotary motor (9), and the extrusion plate (2) is fixedly connected to the output shaft of the rotary motor (9) through the connector (10).

7. The automatic replacement device for the extrusion strip perforated plate module according to claim 6, characterized in that, The rotary motor (9) is fixedly installed on the column (11), and the connector (10) includes two symmetrically arranged connecting rods.

8. The automatic replacement device for the extrusion strip perforated plate module according to claim 5, characterized in that, The plurality of extrusion strip perforated plates (2) are arranged at equal intervals around the circumference of the rotating shaft of the rotating member.

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