Baffle assembly for controlling extrusion speed of outer hole pug

Abstract

The utility model discloses a baffle assembly for controlling the extrusion speed of outer hole pug, which comprises a mold core, a mold frame and a plurality of mold nails, a pug speed control mechanism is arranged behind the mold core, the pug speed control mechanism comprises a material blocking assembly, the material blocking assembly is arranged behind the mold core and is arranged at the position of a discharge port of an extruder, the material blocking assembly comprises an outer frame body, and the outer frame body is arranged on the mold core. A square groove is formed in the outer frame body, the inner surface of the square groove is arranged in a stepped mode, and material stopping blocks are installed on the four inner walls of the square groove. According to the baffle assembly for controlling the extrusion speed of the outer hole pug, the material blocking assembly is designed to be installed at the feeding end of a honeycomb mold, the amount of materials entering the outermost circle of pug passing holes is controlled through a square structure composed of limiting blocks of the material blocking assembly, then the discharging speed of an outer seam is reduced, the discharging speed is kept consistent with that of an inner seam, and a finished product has high compressive strength; and the practicability of the mold in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of SCR honeycomb denitration catalyst production, in particular to a baffle component for controlling the extrusion speed of outer hole mud material. Background Art

[0002] In the SCR flue gas denitrification system, the catalyst is the most important part. Currently, there are three types of denitrification catalysts that are most widely used: honeycomb, plate and corrugated plate. The honeycomb type has become the most important catalyst type due to its high denitrification efficiency, large specific surface area, strong anti-poisoning performance and low cost of use.

[0003] Reference patent publication number "CN214821166U" discloses an arc-shaped honeycomb denitrification catalyst extrusion die, including: a plurality of mud holes arranged in a matrix are provided on one side of the mold core, and a plurality of limit columns arranged in a matrix are provided on the other side; each limit column is located between four adjacent mud holes.

[0004] In this patent, when the mold forms an inner seam and an outer seam through a limit block and a mold core, the outer frame of the catalyst is formed by extruding from the outer seam, and the honeycomb structure inside the catalyst is formed by extruding from the inner seam. However, when the width of the inner seam is much smaller than the width of the outer seam, the problem of too fast discharge of the outer seam will occur. When the discharge speed of the outer seam is fast, the outer frame of the catalyst has been extruded, but the internal honeycomb structure has not yet been extruded, which will lead to a reduction in the overall strength of the catalyst. For this reason, a baffle assembly for controlling the extrusion speed of the outer hole mud is proposed. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a baffle assembly for controlling the extrusion speed of mud material at the outer hole, thereby solving the problem that the material discharge speed of the outer seam is too fast when the existing SCR honeycomb denitration catalyst extrusion die is in use.

[0006] To achieve the above purpose, the utility model is implemented by the following technical scheme: a baffle assembly for controlling the extrusion speed of the outer hole mud material comprises a mold core, a mold frame and a plurality of mold pins, a mud material speed control mechanism is arranged behind the mold core, and the mud material speed control mechanism comprises:

[0007] A material blocking assembly is located behind the mold core and is installed at the material outlet of the extruder. The material blocking assembly includes an outer frame, a square groove is provided inside the outer frame, and the inner surface of the square groove is stepped. Material blocking blocks are installed at the four inner walls of the square groove, and the four material blocking blocks form a square frame. The outer sides of the material blocking blocks are provided with stepped grooves that match the steps of the inner surface of the square groove.

[0008] The mounting assembly is arranged in the material stop block, and two mounting assemblies are arranged on a single material stop block. The mounting assembly is used to mount the material stop block in the square groove.

[0009] Preferably, a plurality of mud holes arranged in a matrix are opened inside the mold core, a plurality of mold pins are arranged in a matrix in front of the mold core, and a mold frame is arranged outside the plurality of mold pins.

[0010] Preferably, the size of the square frame formed by the four material-blocking blocks matches the square formed by the plurality of mud-passing holes, and the material-blocking blocks block a portion of the outermost circle of mud-passing holes.

[0011] Preferably, the mounting assembly includes a countersunk hole opened inside the stop block, the countersunk hole is movably connected to a mounting rod inside, the mounting rod passes through the countersunk hole and extends to the rear of the stop block, the left and right sides of the end of the mounting rod located behind the stop block are fixedly connected to limiting blocks, and the end of the mounting rod located inside the countersunk hole is fixedly connected to a hexagonal head.

[0012] Preferably, the countersunk hole is composed of two front and rear circular grooves, and the diameter of the front circular groove is larger than the diameter of the rear circular groove, and a limit spring is sleeved on the surface of the mounting rod located within the diameter of the front circular groove.

[0013] Preferably, a mounting hole cooperating with the mounting rod and the limit block is opened on the front of the stepped portion inside the square groove, and the mounting hole consists of a first cylindrical groove, two long grooves and a second cylindrical groove, the two long grooves are respectively located on the left and right sides of the first cylindrical groove, and the second cylindrical groove is located behind the first cylindrical groove.

[0014] Beneficial Effects

[0015] The utility model provides a baffle assembly for controlling the extrusion speed of mud material from an outer hole. Compared with the prior art, it has the following beneficial effects:

[0016] 1. The baffle assembly for controlling the extrusion speed of the outer hole mud material is installed at the discharge port of the extruder through the baffle assembly. The baffle assembly includes an outer frame body, and a square groove is opened inside the outer frame body. The baffle assembly is designed to be installed at the feed end of the honeycomb mold. The square structure composed of the limit blocks of the material assembly is used to control the amount of material entering the outermost circle mud hole, thereby reducing the discharge speed of the outer seam and keeping it consistent with the inner seam, so that the finished product has a higher compressive strength and improves the practicability of the mold when used.

[0017] 2. The baffle assembly for controlling the extrusion speed of the outer hole mud material includes a countersunk hole opened inside the baffle block through an installation assembly. The inside of the countersunk hole is movably connected with a mounting rod. The mounting rod passes through the countersunk hole and extends to the rear of the baffle block. The baffle block installed in the baffle assembly is installed in the square groove in the outer frame through the installation assembly. After the baffle block is worn, the baffle block can be quickly removed for repair and replacement, thereby improving the convenience of using the baffle assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the appearance of the utility model;

[0019] Figure 2 It is an exploded view of the utility model;

[0020] Figure 3 It is a schematic diagram of the outer frame of the utility model;

[0021] Figure 4 It is a schematic diagram of the material blocking block and the installation assembly of the utility model;

[0022] Figure 5 It is a partial cross-sectional view of the mounting hole of the utility model.

[0023] In the figure: 1. mold core; 11. mud hole; 2. mold pin; 3. mold frame; 4. material stopper assembly; 41. outer frame; 42. square groove; 43. material stopper block; 44. stepped groove; 5. mounting assembly; 51. countersunk hole; 52. mounting rod; 53. limit block; 54. hexagon socket head; 55. limit spring; 56. mounting hole; 561. first cylindrical groove; 562. long groove; 563. second cylindrical groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The baffle assembly for controlling the extrusion speed of the outer hole mud material provides two technical solutions:

[0026] like Figure 1-4 The first embodiment is shown: it includes a mold core 1, a mold frame 3 and a plurality of mold pins 2. A clay material speed control mechanism is arranged behind the mold core 1. The clay material speed control mechanism includes:

[0027] The material blocking component 4 is located behind the mold core 1 and is installed at the discharge port of the extruder. The material blocking component 4 includes an outer frame 41. A square groove 42 is opened inside the outer frame 41, and the inner surface of the square groove 42 is stepped. Block blocks 43 are installed on the four inner walls of the square groove 42, and the four block blocks 43 form a square frame. The outer sides of the block blocks 43 are opened with stepped grooves 44 that match the steps of the inner surface of the square groove 42. A plurality of mud holes 11 arranged in a matrix are opened inside the mold core 1, a plurality of mold pins 2 are arranged in a matrix in front of the mold core 1, and the mold frame 3 is arranged outside the plurality of mold pins 2. The size of the square frame composed of the four block blocks 43 matches the square composed of the plurality of mud holes 11, and the block blocks 43 block part of the outermost circle of mud holes 11.

[0028] A material blocking assembly is designed to be installed at the feed end of the honeycomb mold. The square structure composed of the limit blocks 43 of the material blocking assembly 4 is used to control the amount of material entering the outermost circle mud hole 11, thereby reducing the discharge speed of the outer seam to keep it consistent with the inner seam, so that the finished product has higher compressive strength and improves the practicability of the mold when in use.

[0029] like Figure 4 and 5 The second embodiment is shown, which is mainly different from the first embodiment in that: the mounting assembly 5 is arranged in the stop block 43, and two mounting assemblies 5 are arranged on a single stop block 43, the mounting assembly 5 is used to install the stop block 43 in the square groove 42, the mounting assembly 5 includes a countersunk hole 51 opened inside the stop block 43, the countersunk hole 51 is movably connected to a mounting rod 52 inside, the mounting rod 52 passes through the countersunk hole 51 and extends to the rear of the stop block 43, the left and right sides of the end of the mounting rod 52 located at the rear of the stop block 43 are fixedly connected to the limited block 53, the mounting rod 52 is located in the countersunk hole 51 A hexagonal head 54 is fixedly connected to one end of the interior, and the countersunk hole 51 consists of two front and rear circular grooves, and the diameter of the front circular groove is larger than the diameter of the rear circular groove. A limit spring 55 is sleeved on the surface of the mounting rod 52 located in the diameter of the front circular groove, and a mounting hole 56 that cooperates with the mounting rod 52 and the limit block 53 is opened on the front side of the stepped part inside the square groove 42. The mounting hole 56 consists of a first cylindrical groove 561, two long grooves 562 and a second cylindrical groove 563. The two long grooves 562 are respectively located on the left and right sides of the first cylindrical groove 561, and the second cylindrical groove 563 is located behind the first cylindrical groove 561.

[0030] The stopper block 43 installed in the stopper assembly 4 is installed in the square groove 42 in the outer frame 41 through the installation assembly 5. After the stopper block 43 is worn, the stopper block 43 can be quickly removed for repair and replacement, which improves the convenience of using the stopper assembly 4.

[0031] When in use, the mud speed control mechanism is installed at the discharge port of the extruder, and the extrusion mold is installed in front of the mud control mechanism. After the mud is extruded from the extruder, it first enters the blocking assembly 4, and then enters the square frame composed of four blocking blocks 43. Since the blocking block 43 blocks the rear of the outermost circle mud hole 11, the amount of mud entering the outermost circle mud hole 11 is controlled, so that the mud speed of the inner seam and the outer seam is the same during extrusion. In addition, after the blocking assembly 4 is used for a long time, the blocking block 43 is worn, and the hexagonal head 54 is rotated by a tool, and the hexagonal head 54 rotates and drives the mounting rod 52 to rotate. After the mounting rod 52 rotates and aligns the position of the limit block 53 with the long groove 562, the mounting rod 52 is popped out from the second cylindrical groove 563 by the action of the limit spring 55, so that the blocking block 43 is removed for repair or replacement.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A baffle assembly for controlling the extrusion speed of outer hole mud material, comprising a mold core (1), a mold frame (3) and a plurality of mold pins (2), characterized in that: A clay material speed control mechanism is arranged behind the mold core (1), and the clay material speed control mechanism comprises: A material blocking assembly (4) is located behind the mold core (1) and is installed at the material outlet of the extruder. The material blocking assembly (4) comprises an outer frame (41), a square groove (42) is provided inside the outer frame (41), and the inner surface of the square groove (42) is stepped. Material blocking blocks (43) are installed on the four inner walls of the square groove (42), and the four material blocking blocks (43) form a square frame. The outer sides of the material blocking blocks (43) are provided with stepped grooves (44) that match the steps of the inner surface of the square groove (42). The mounting assembly (5) is arranged in the material blocking block (43), and two mounting assemblies (5) are arranged on a single material blocking block (43). The mounting assembly (5) is used to mount the material blocking block (43) in the square groove (42).

2. A baffle assembly for controlling the extrusion speed of mud material at the outer hole according to claim 1, characterized in that: The mold core (1) is provided with a plurality of mud holes (11) arranged in a matrix, a plurality of mold pins (2) are arranged in a matrix in front of the mold core (1), and a mold frame (3) is arranged outside the plurality of mold pins (2).

3. The baffle assembly for controlling the extrusion speed of the outer hole mud material according to claim 1, characterized in that: The size of the square frame formed by the four material blocking blocks (43) matches the square formed by the plurality of mud holes (11), and the material blocking blocks (43) cover a portion of the outermost circle of mud holes (11).

4. The baffle assembly for controlling the extrusion speed of the outer hole mud material according to claim 1, characterized in that: The mounting assembly (5) comprises a countersunk hole (51) provided inside the material stopper (43); a mounting rod (52) is movably connected inside the countersunk hole (51); the mounting rod (52) passes through the countersunk hole (51) and extends to the rear of the material stopper (43); the left and right sides of the end of the mounting rod (52) located behind the material stopper (43) are fixedly connected to the limiting block (53); and one end of the mounting rod (52) located inside the countersunk hole (51) is fixedly connected to a hexagon socket head (54).

5. A baffle assembly for controlling the extrusion speed of mud material at the outer hole according to claim 4, characterized in that: The countersunk hole (51) is composed of two front and rear circular grooves, and the diameter of the front circular groove is larger than the diameter of the rear circular groove. A limit spring (55) is sleeved on the surface of the mounting rod (52) located within the diameter of the front circular groove.

6. The baffle assembly for controlling the extrusion speed of the outer hole mud material according to claim 4, characterized in that: A mounting hole (56) for cooperating with the mounting rod (52) and the limit block (53) is provided on the front side of the stepped portion inside the square groove (42); the mounting hole (56) is composed of a first cylindrical groove (561), two long grooves (562) and a second cylindrical groove (563); the two long grooves (562) are respectively located on the left and right sides of the first cylindrical groove (561); and the second cylindrical groove (563) is located behind the first cylindrical groove (561).

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