Extrusion die for forming red-mud-based composite SCR (Selective Catalytic Reduction) denitration catalyst

Abstract

The utility model relates to the field of forming dies, in particular to an extrusion die for forming a red mud-based composite SCR (Selective Catalytic Reduction) denitration catalyst, which is characterized in that a second flange is fixedly arranged on one side of a first flange, a module is arranged behind the second flange, a flange pipe is arranged on the first flange, and a detachable filtering assembly is arranged on the flange pipe; a primary fixing seat is fixedly arranged at the top of the filtering assembly, secondary fixing seats are arranged at the positions, located on the two sides of the primary fixing seat, of the flange pipe, clamping pieces clamped with the secondary fixing seats in a matched mode are movably arranged on the two sides of the primary fixing seat, and limiting frames used for locking the clamping pieces are vertically and movably arranged on the two sides of the primary fixing seat. According to the utility model, the catalyst can be molded and extruded through the first flange, the second flange and the module, the clamping piece and the clamping cavity are clamped with each other, and the clamping piece is locked by the limiting frame, so that the filter assembly and the filter screen can be fixedly assembled, and a user can conveniently disassemble and clean the filter screen in the later period.

Description

Technical Field

[0001] This utility model relates to the field of molding die technology, and in particular to an extrusion die for molding red mud-based composite SCR denitrification catalyst. Background Technology

[0002] The extrusion die for molding red mud-based composite SCR denitration catalyst is a precision die specifically designed to process the plastic material of red mud-based composite SCR denitration catalyst into a specific shape through a high-pressure extrusion molding process.

[0003] The patent application CN 220681739 U discloses a catalyst extrusion die, which provides an extrusion die for catalyst molding. However, in actual use of similar devices, it has been found that the filter screen is inconvenient to disassemble and replace, thus increasing maintenance time. Therefore, there is an urgent need for an extrusion die for catalyst molding that facilitates the disassembly and cleaning of the filter screen. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an extrusion die for molding red mud-based composite SCR denitrification catalysts.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An extrusion die for forming a red mud-based composite SCR denitrification catalyst includes a first flange, a second flange fixedly mounted on one side of the first flange, a module mounted behind the second flange, a flange tube mounted on the first flange, and a detachable filter assembly mounted on the flange tube; a female fixing seat is fixedly mounted on the top of the filter assembly, and a male fixing seat is mounted on both sides of the flange tube at the female fixing seat; a locking piece adapted to and engaged with the male fixing seat is movably mounted on both sides of the female fixing seat, and a limiting bracket for locking the locking piece is vertically movably mounted on both sides of the female fixing seat.

[0007] Furthermore, in a preferred configuration, the flange tube has an installation cavity in the middle, the filter assembly is adapted to the installation cavity, and a filter screen is fixedly installed in the middle of the filter assembly.

[0008] Furthermore, in a preferred configuration, both sides of the female fixing base are provided with inwardly opening movable cavities, and the locking components are adapted to move within the movable cavities. Each movable cavity is provided with multiple spring cavities, and each spring cavity is provided with a spring connected to the locking component installed outwardly.

[0009] In addition, in a preferred structure, the limiting frames are all located on both sides of the mother fixed base and move vertically, and a connecting plate and a middle plate are fixedly connected between the two limiting frames.

[0010] In addition, in a preferred configuration, a lead screw is rotatably mounted on the top of the female fixing seat, the middle plate moves vertically via the lead screw, guide posts are fixedly mounted on both sides of the lead screw on the female fixing seat, and the connecting plates are guided to move via the guide posts.

[0011] Furthermore, in a preferred configuration, both sides of the sub-fixed base are provided with inwardly opening locking cavities, and the locking cavities are adapted to the locking components.

[0012] The beneficial effects of this utility model are as follows: the catalyst can be formed and extruded through the first flange, the second flange and the module; the filter assembly and filter screen can be fixedly assembled by the mutual locking between the clamp and the clamp cavity and the locking of the clamp with the limit frame. This method of disassembling and assembling the filter screen is simple and quick, and it is convenient for users to disassemble and clean the filter screen in the later stage. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the extrusion die for forming the red mud-based composite SCR denitrification catalyst proposed in this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the first flange, flange pipe and filter assembly proposed in this utility model;

[0015] Figure 3 for Figure 2 A schematic diagram of the structure after the filter components have been removed;

[0016] Figure 4 This is a schematic diagram of the structure of the filter assembly proposed in this utility model;

[0017] Figure 5 for Figure 2 Enlarged detailed view of the male and female fixing seats in the middle;

[0018] Figure 6 for Figure 5 A schematic diagram of the structure when the card is located on the outer wall of the limit frame;

[0019] Figure 7 This is an exploded structural diagram of the female fixing seat proposed in this utility model.

[0020] In the diagram: 1 First flange, 11 Second flange, 12 Module, 2 Flange pipe, 21 Mounting cavity, 22 Sub-fixed seat, 23 Clamping cavity, 3 Filter assembly, 31 Filter screen, 32 Female fixed seat, 33 Movable cavity, 331 Spring cavity, 332 Spring, 34 Clamping piece, 4 Lead screw, 41 Guide column, 5 Limiting frame, 51 Connecting plate, 52 Middle plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-7 An extrusion die for forming a red mud-based composite SCR denitrification catalyst includes a first flange 1, a second flange 11 fixedly mounted on one side of the first flange 1, a module 12 mounted behind the second flange 11, a flange pipe 2 mounted on the first flange 1, and a detachable filter assembly 3 mounted on the flange pipe 2. A female fixing seat 32 is fixedly mounted on the top of the filter assembly 3, and a male fixing seat 22 is mounted on both sides of the flange pipe 2 at the female fixing seat 32. A locking piece 34 adapted to and engaged with the male fixing seat 22 is movably mounted on both sides of the female fixing seat 32, and a limiting bracket 5 for locking the locking piece 34 is vertically movably mounted on both sides of the female fixing seat 32.

[0023] The flange pipe 2 has a mounting cavity 21 in the middle, the filter assembly 3 is adapted to the mounting cavity 21, and a filter screen 31 is fixedly installed in the middle of the filter assembly 3. Sealing elements are provided on the contact surfaces between the filter assembly 3 and the mounting cavity 21 to ensure the sealing of the flange pipe 2.

[0024] The female fixing base 32 has inwardly extending movable cavities 33 on both sides. Each locking member 34 is adapted to move within a movable cavity 33. Each movable cavity 33 has multiple spring cavities 331, and each spring cavity 331 has a spring 332 connected to the locking member 34 installed outwardly. The springs 332 pull the locking member 34 inward, allowing it to be stably locked within the cavity 23. It is worth noting that the springs 332 are existing anti-vibration damping springs to improve stability.

[0025] The limiting frames 5 are located on both sides of the female fixed base 32 and move vertically. A connecting plate 51 and a middle plate 52 are fixedly connected between the two limiting frames 5.

[0026] The female fixing seat 32 is rotatably equipped with a lead screw 4 at its top. The middle plate 52 moves vertically via the lead screw 4. Guide posts 41 are fixedly installed on both sides of the lead screw 4 on the female fixing seat 32, and the connecting plates 51 are guided to move by the guide posts 41. The middle plate 52 is provided with a lead screw cavity corresponding to the lead screw 4, so that when the lead screw 4 rotates, it can drive the middle plate 52 to move vertically. This is prior art, so it will not be described in detail.

[0027] The sub-fixing base 22 has inwardly opening cavities 23 on both sides, and the cavities 23 are adapted to the clip 34.

[0028] In this embodiment, the specific structure and working method of the first flange 1, the second flange 11 and the module 12 have been disclosed in the prior art and belong to the prior art. This application is an improvement based on the prior art and aims to realize the convenient disassembly and cleaning of the filter component 3. Therefore, the technology in the prior art will not be described in detail.

[0029] Furthermore, when the user needs to install the filter assembly 3 on the flange pipe 2, the filter assembly 3 can be directly assembled into the mounting cavity 21. At this time, the clips 34 are all aligned with the clamping cavity 23, and the clips 34 are unable to move inward due to the clamping of the outer wall of the limiting frame 5. The springs 332 are all stretched, and the filter screen 31 is aligned with the channel of the flange pipe 2.

[0030] Then, rotate the knob at the top of the lead screw 4 to move the limiting frame 5 upward, thereby releasing the outer wall of the limiting frame 5 from the locking piece 34. At this time, the locking pieces 34 automatically move inward by the elastic force of the spring 332, thus locking the locking pieces 34 and the locking cavity 23. Next, the user only needs to rotate the lead screw 4 in the opposite direction to move the limiting frame 5 downward, thereby locking the inner walls of both sides of the limiting frame 5 onto the outer side of the locking pieces 34, further locking the locking pieces 34, thus achieving the fixed installation of the filter screen 31 of the filter assembly 3.

[0031] It is worth noting that the lead screw 4 and the middle plate 52 are equipped with a threaded self-locking damping structure to prevent the lead screw from rotating under external force. This is existing technology, so it will not be described in detail.

[0032] Furthermore, when the user needs to disassemble and clean the filter assembly 3 and filter screen 31, they only need to move the limiting bracket 5 upwards via the lead screw 4 to release the locking mechanism 34 from the inner wall of the limiting bracket 5. Then, the user only needs to use one hand to pry the locking mechanisms 34 outwards to release the mutual locking between the locking mechanisms 34 and the locking cavity 23. The user then moves the limiting bracket 5 downwards again via the lead screw 4, thereby locking the locking mechanism 34 through the outer wall of the limiting bracket 5 to prevent the locking mechanism 34 from resetting into the locking cavity 23. Finally, the user only needs to lift the filter assembly 3 upwards to remove it for cleaning.

[0033] In this utility model, the catalyst can be formed and extruded through the first flange 1, the second flange 11 and the module 12. The filter assembly 3 and the filter screen 31 can be fixedly assembled by the mutual locking between the clip 34 and the clip cavity 23 and the locking of the clip 34 by the limiting frame 5. This method of disassembling and assembling the filter screen 31 is simple and quick, and it is convenient for users to disassemble and clean the filter screen 31 in the later stage.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An extrusion die for forming a red mud-based composite SCR denitration catalyst, comprising a first flange (1), characterized in that, A second flange (11) is fixedly provided on one side of the first flange (1), a module (12) is provided behind the second flange (11), a flange pipe (2) is provided on the first flange (1), and a detachable filter assembly (3) is installed on the flange pipe (2). The top of the filter assembly (3) is fixedly provided with a female fixing seat (32), and the flange pipe (2) is provided with a male fixing seat (22) on both sides of the female fixing seat (32). Both sides of the female fixing seat (32) are movably provided with a locking piece (34) that is adapted to and locked with the male fixing seat (22), and both sides of the female fixing seat (32) are vertically movably provided with a limiting frame (5) for locking the locking piece (34).

2. The extrusion die for molding a red mud-based composite SCR de-NOx catalyst according to claim 1, characterized by, The flange pipe (2) has an installation cavity (21) in the middle, the filter assembly (3) is adapted to the installation cavity (21), and a filter screen (31) is fixedly installed in the middle of the filter assembly (3).

3. The extrusion die for molding a red mud-based composite SCR de-NOx catalyst according to claim 2, characterized by, The female fixing seat (32) has movable cavities (33) on both sides, and the locking pieces (34) are adapted to move within the movable cavities (33). Multiple spring cavities (331) are provided within the movable cavities (33), and springs (332) connected to the locking pieces (34) are installed outward within each spring cavity (331).

4. The extrusion die for molding a red mud-based composite SCR de-NOx catalyst according to claim 1, characterized by, The limiting frames (5) are all located on both sides of the mother fixed base (32) and move vertically. A connecting plate (51) and a middle plate (52) are fixedly connected between the two limiting frames (5).

5. The extrusion die for molding a red mud-based composite SCR de-NOx catalyst according to claim 4, characterized by, The top of the female fixing seat (32) is rotatably provided with a lead screw (4), the middle plate (52) moves vertically through the lead screw (4), and guide columns (41) are fixedly provided on both sides of the lead screw (4) on the female fixing seat (32), and the connecting plates (51) are all guided to move through the guide columns (41).

6. The extrusion die for molding a red mud-based composite SCR de-NOx catalyst according to claim 1, characterized by, Both sides of the sub-fixed base (22) are provided with inwardly opening cavities (23), and the cavities (23) are adapted to the card (34).

Images