Propane dehydrogenation catalyst carrier preparation mold
By installing a mold body with water-cooled channels at the outlet end of the extruder, the problem of carrier cracking and burrs caused by mechanical heat is solved by the inability of traditional extruders to effectively reduce the problem of carrier cracking and burrs caused by mechanical heat, and sufficient cooling of the catalyst carrier and the satisfaction of production requirements are achieved.
Patent Information
- Application Number
- CN202421405149.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-06-19
AI Technical Summary
Traditional extruders set up shaft sleeves in the extrusion pipe outer jacket for cooling and cooling, but they cannot effectively reduce mechanical heat, resulting in the catalyst carrier being prone to cracking and burrs on the surface, which cannot meet the production requirements of appearance, size, and carrier strength.
A mold body is designed including a mold body installed at the outlet end of the extrusion pipe, with a water-cooled channel and a discharge hole communicating with the extrusion pipe, so as to achieve effective cooling and cooling of the catalyst carrier through the water-cooled channel provided by the mold body.
Sufficient cooling of the catalyst support is achieved through the water-cooled channel of the mold body, avoiding the problem of carrier cracking and burr, and meeting the production requirements of the appearance, size and strength of the catalyst support.
Smart Images
Figure CN222780068U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of extrusion equipment, in particular to a propane dehydrogenation catalyst carrier preparation die. Background Art
[0002] The catalyst carrier, also known as the support, is one of the components of the supported catalyst. As the skeleton of the active components of the catalyst, it is used to support the active components so that the active components can be effectively dispersed. At the same time, it can also increase the strength of the catalyst.
[0003] At present, the market has strict requirements on the appearance, size and carrier strength of propane dehydrogenation catalyst carriers. In the preparation process of propane dehydrogenation catalyst carriers, an extruder is often used to extrude the catalyst carrier. A large amount of mechanical heat causes the material to heat up during extrusion, and the temperature is close to 70°C. The water on the heated surface of the material evaporates and the temperature drops rapidly. The internal heat cannot be released, causing the material to explode longitudinally and cracks on the surface.
[0004] In order to overcome the problem of material explosion, the traditional extruder is to install a shaft sleeve outside the extrusion tube and cool it by passing circulating water into the shaft sleeve. However, this method cannot effectively reduce the mechanical heat during extrusion molding, making the extruded carrier easy to crack and burrs on the surface, which leads to the appearance, size and strength of the processed carrier not meeting the production requirements.
[0005] Therefore, it is necessary to provide a special propane dehydrogenation catalyst carrier preparation mold to solve the above problems. Utility Model Content
[0006] In view of the above problems, the purpose of the utility model is to provide a propane dehydrogenation catalyst carrier preparation mold, which solves the problem that the traditional extruder is equipped with a shaft sleeve outside the extrusion tube, and cooling is carried out by passing circulating water into the shaft sleeve, but the mechanical heat during extrusion molding cannot be effectively reduced, so that the extruded carrier is prone to cracking and burrs are prone to appear on the surface, which leads to the problem that the appearance, size and carrier strength of the processed and prepared carrier do not meet the production requirements.
[0007] The technical solution adopted by the utility model is as follows: a propane dehydrogenation catalyst carrier preparation mold, including a mold body installed at the outlet end of an extrusion tube, the mold body is provided with a discharge hole connected to the extrusion tube, and the mold body is also provided with a water cooling channel.
[0008] Furthermore, the water cooling channel is located at the center of the mold body, and the discharge hole is located at the periphery of the water cooling channel.
[0009] Furthermore, the discharge hole is located at the center of the mold body, and the water cooling channel is located outside the discharge hole.
[0010] Furthermore, the discharge holes are divided into multiple groups, and the multiple discharge holes in each group are arranged in a circular ring, and the multiple groups of discharge holes are arranged concentrically and radially at intervals; the water cooling channel includes circular ring segments respectively located outside each group of discharge holes or inside each group of discharge holes, and the multiple circular ring segments are connected.
[0011] Furthermore, a plug-in slot is provided on the mold body, a water-cooling component is installed in the plug-in slot, and drainage slots are provided on the opposite surfaces of the plug-in slot and the water-cooling component, and the two drainage slots cooperate to form a water-cooling channel; the water-cooling component is also provided with a water inlet and a water return port connected to the water-cooling channel.
[0012] Furthermore, a quick-release component for pressing the die body onto the end surface of the extrusion tube is also installed at the outlet end of the extrusion tube.
[0013] Furthermore, the quick-release part includes two hoop bodies embracing the extrusion tube, the hoop bodies are provided with a clamping groove engaged with the flange on the extrusion tube, and the hoop bodies are also provided with an installation groove, and the mold body is located in the installation groove.
[0014] Furthermore, a tightening bolt abutting against a flange on the extrusion tube is also installed on the quick-release member.
[0015] Furthermore, a mounting hole is provided on the water cooling component, and a bolt for fixing the water cooling component in the plug-in slot is installed in the mounting hole.
[0016] Furthermore, a first sealing ring is installed at the contact point between the extrusion tube and the mold body; and a second sealing ring is installed at the contact point between the mold body and the water-cooling component.
[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:
[0018] 1. The propane dehydrogenation catalyst carrier preparation mold realizes cooling and cooling in the catalyst carrier preparation extrusion molding stage by installing a mold body on the outlet end of the extrusion tube and arranging a water cooling channel on the mold body, and the mold body has a discharge hole connected to the extrusion tube. Since the mold body has its own water cooling, there is no need to use a shaft sleeve for water cooling. Each discharge hole can be effectively cooled, thereby ensuring sufficient cooling of the carrier. This not only avoids the problem of cracking of the carrier due to a large amount of extrusion heat, but also ensures that the appearance of the carrier has no obvious burrs, thereby meeting the production requirements of the catalyst carrier for appearance, size, and carrier strength.
[0019] 2. The mold body is provided with a discharge hole connected to the extrusion tube, and a water cooling channel for passing cooling water to cool the catalyst carrier. There are various arrangements of the discharge hole and the water cooling channel on the mold body. The water cooling channel may be located at the center of the mold body and the discharge hole may be located at the periphery of the water cooling channel; the discharge hole may be located at the center of the mold body and the water cooling channel may be located at the periphery of the discharge hole; the discharge hole may be divided into multiple groups, and multiple discharge holes in each group may be arranged in a circular ring, and multiple groups of discharge holes may be arranged in concentric radial intervals, and the water cooling channel may include circular ring segments respectively located outside or inside each group of discharge holes, and multiple circular ring segments may be connected and arranged; the staff may make a selection according to actual use requirements and carry out processing and design. The above methods may effectively cool the extruded catalyst carrier.
[0020] 3. A plug-in slot is provided on the mold body, a water-cooling component is installed in the plug-in slot, and drainage slots are provided on the opposite surfaces of the plug-in slot and the water-cooling component. The two drainage slots cooperate to form a water-cooling channel. A water inlet and a water return port connected to the water-cooling channel are also provided on the water-cooling component. The cooling water enters the head end of the water-cooling channel through the water inlet, and then flows back to the water return port through the tail end of the water-cooling channel. In addition, the water inlet and the water return port can be switched back and forth.
[0021] 4. The mold body with the water-cooling part is quickly installed on the extruder by using the quick-release parts, that is, pressed on the end face of the extrusion tube of the extruder. The specific installation process is that the staff first aligns the mold body with the outlet end of the extrusion tube, and then holds the quick-release parts, that is, the two hoops, at the outlet end of the extrusion tube. At this time, the mold body is just docked in the installation groove of the quick-release parts. Then the staff can install the water-cooling part on the plug-in slot of the mold body. This design not only greatly shortens the disassembly and replacement time, but also makes it more convenient for the staff to repair and maintain the water-cooling parts and the mold body. In addition, its structural design is simple and easy for the staff to operate.
[0022] 5. By installing the first sealing ring at the contact point between the extrusion tube and the mold body, the sealing between the two is ensured to prevent the material from flowing out from the gap between the two. Similarly, the second sealing ring is installed at the contact point between the mold body and the water-cooling part to further prevent the overflow of the material.
[0023] 6. A slot engaged with the flange of the extrusion tube is provided on the quick-release component, and a clamping bolt that is clamped against the flange of the extrusion tube is installed on the quick-release component, so that the quick-release component is tightly connected to the outlet end of the extrusion tube, and the clamping bolt tightly fits the first sealing ring between the extrusion tube and the mold body in the corresponding position, further preventing material from overflowing from the connection. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0025] Figure 1 A schematic diagram of the structure provided for an embodiment of the utility model;
[0026] Figure 2 for Figure 1 Side view of.
[0027] Description of the drawings: 1. Extrusion tube; 2. Quick-release parts; 3. Mold body; 4. Water-cooling parts; 5. Discharge hole; 6. Mounting hole; 7. Water inlet; 8. Water return port; 9. Water cooling channel; 10. Card slot; 11. Mounting slot; 12. Plug-in slot; 13. First sealing ring; 14. Second sealing ring; 15. Tightening bolt. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0030] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does 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 therefore cannot be understood as a limitation on the present invention.
[0031] Combine the following Figure 1-Figure 2 The utility model is described in detail.
[0032] Example
[0033] Depend on Figure 1-2 It can be seen that a propane dehydrogenation catalyst carrier preparation mold includes a mold body 3 installed at the outlet end of the extrusion tube 1, and the mold body 3 has a discharge hole 5 connected to the extrusion tube 1, and the mold body 3 is also provided with a water cooling channel 9. The model of the extrusion tube 1 is not specifically limited here, and it can meet the actual use requirements. It can be an extrusion tube 1 used by a commonly used extruder on the market, and it can be an extruder with an extrusion diameter of 150mm. After the material is extruded by the extruder, it is discharged from the discharge hole 5 of the mold body 3 through the outlet end of the extrusion tube 1, and the mold body 3 is water-cooled by passing circulating cooling water into the water cooling channel 9, thereby achieving effective water cooling of the catalyst carrier, avoiding material cracking, and making the material appearance have no obvious burrs. The diameter of the extruded catalyst carrier after roasting is stable at 3.1mm, which meets the qualified standards of the product, and the strength of the carrier after roasting is above 300N / cm, which meets the qualified standards of the product. A single mold can produce 28t of qualified products.
[0034] There are many arrangements of the discharge hole 5 and the water cooling channel 9 on the mold body 3. The water cooling channel 9 can be located at the center of the mold body 3 and the discharge hole 5 is located outside the water cooling channel 9; the discharge hole 5 can be located at the center of the mold body 3 and the water cooling channel 9 is located outside the discharge hole 5; the discharge hole 5 can also be divided into multiple groups, and the multiple discharge holes 5 in each group are arranged in a circular ring, and the multiple groups of discharge holes 5 are arranged in concentric radial intervals; the water cooling channel 9 includes circular ring segments respectively located outside each group of discharge holes 5 or inside each group of discharge holes 5, and multiple circular ring segments are connected. The above methods can effectively cool the extruded catalyst carrier, but are not limited to the above methods. The staff can carry out processing and design according to actual use requirements.
[0035] like Figure 2 As shown, the whole plate diameter of the die body 3 is 165mm, and the diameter of the area bearing the extrusion pressure is 150mm. The discharge holes 5 are evenly distributed in a ring array on the die body 3 to form a discharge ring. The inner diameter of the discharge ring is 114mm, the outer diameter is 150mm, the number of inner ring discharge holes is 54, the number of outer ring discharge holes is 60, and the total number of holes is 114. The single hole diameter is 3.2mm, and the material forming distance is 13mm.
[0036] In addition, the mold body 3 is made of stainless steel, which greatly increases the service life of the mold body 3. Compared with general plastic molds on the market, the utility model uses steel, which can be 304 steel or 316 steel. The upgrade of the material significantly reduces the time for changing the mold and improves work efficiency.
[0037] In addition, the edge of each 3.2mm discharge hole 5 is designed with a C1.5 chamfer, which is not only conducive to the material entering the inside of the discharge hole, but also more conducive to the molding of the material. In the figure, the length of each 3.2mm discharge hole 5 is 13mm, and the molding distance of the material can meet the appearance, size and strength performance of the material strip.
[0038] Furthermore, a plug-in slot 12 is provided on the mold body 3, a water-cooling component 4 is installed in the plug-in slot 12, and drainage grooves are provided on the opposite surfaces of the plug-in slot 12 and the water-cooling component 4, and the two drainage grooves cooperate to form a water-cooling channel 9. In addition, a mounting hole 6 is provided on the water-cooling component 4, and a bolt for fixing the water-cooling component 4 in the plug-in slot 12 is installed in the mounting hole 6. The plug-in slot 12 on the mold body 3 limits the water-cooling component 4, and by installing the bolt in the mounting hole 6, the water-cooling component 4 is fixed to the mold body 3.
[0039] Furthermore, the water cooling part 4 is also provided with a water inlet 7 and a water return port 8 connected to the water cooling channel 9. The cooling water flows into the water cooling channel 9 through the water inlet 7, flows from the head end to the tail end of the water cooling channel 9, and finally flows out from the water return port 8. The circulating cold water inlet 7 and the water return port 8 of the water cooling channel 9 can be switched. The water inlet 7 and the water return port 8 are both equipped with air source connectors, and the air source connectors are connected with a φ6 air source pipe, which is connected to the chiller, and a hand valve is installed on the air source pipe to control whether the cooling water in the chiller flows into or out of the air source pipe. The internal heat exchange diameter of the mold body 3 is 6mm, the length is 420mm, and the internal cooling heat exchange area is 79.1 square centimeters. The chiller is a mobile air-cooled industrial chiller with a cooling capacity of 14KW. The cooling water circulation volume is 0.33t per hour, the inlet water temperature is 5-6℃, the return water temperature is 8-10℃, the cooling effect is very obvious, and the discharge temperature is maintained at 60℃.
[0040] In addition, the outlet end of the extrusion tube 1 is also equipped with a quick-release part 2 that presses the die body 3 against the end face of the extrusion tube 1. The quick-release part 2 is made of a quick-release steel ring of carbon steel, which can offset the extrusion force and prevent deformation during the extrusion process. The quick-release part 2 includes two hoops that are mounted on the extrusion tube 1, and the two hoops are fixed by bolts.
[0041] The mold body 3 and the water-cooling part 4 can be quickly installed on the end face of the extrusion tube 1 of the extruder by using the quick-release part 2, which greatly shortens the time for disassembly and replacement from the original 20 minutes to 3 minutes, significantly improving the disassembly efficiency and facilitating the staff to repair and maintain it.
[0042] A clamping groove 10 is provided on the hoop body for engaging with the flange on the extrusion tube 1, and a clamping bolt 15 is also installed on the quick-release part 2 for abutting against the flange on the extrusion tube 1. Through the cooperation of the clamping groove 10 and the clamping bolt 15, the hoop body, the mold body 3 and the extrusion tube 1 are tightly fitted to reduce the impact of the extrusion force.
[0043] The hoop body is also provided with a mounting groove 11, and the die body 3 is located in the mounting groove 11. The mounting groove 11 on the hoop body limits the die body 3, so that the die body 3 can only fit tightly on the end face of the extruded tube 1 and cannot be separated.
[0044] A first sealing ring 13 is installed between the extrusion tube 1 and the die body 3. A groove with a diameter of 150 mm and a diameter of φ5 is provided on the extrusion tube 1. The first sealing ring 13 is placed in the groove. A second sealing ring 14 is installed between the die body 3 and the water-cooling part 4. Similarly, a groove is provided on the die body 3 for placing the second sealing ring 14. The first sealing ring 13 seals the connection between the extrusion tube 1 and the die body 3 to prevent the material from overflowing from the connection between the die body 3 and the extruder body. Similarly, the second sealing ring 4 seals the connection between the die body 3 and the water-cooling part 4 to effectively prevent the material from overflowing from here. The first sealing ring 13 is an O-type rubber ring with a diameter of φ5, and the second sealing ring 14 is an O-type rubber ring with a diameter of φ3.5.
[0045] Specifically, when using the propane dehydrogenation catalyst carrier to prepare the mold, the staff first aligns the mold body 3 with the outlet end of the extruder tube 1. The mold body 3 is provided with a discharge hole 5 connected to the outlet end of the extruder tube, and then the quick-release part 2, i.e., two hoop bodies, is placed on the extruder tube 1, and the clamping groove 10 on the hoop body is engaged with the flange on the extruder tube 1. At this time, the mold body 3 is just docked in the installation groove 11 of the quick-release part 2. Then the staff can insert the water-cooling part 4 into the plug-in groove of the mold body 3, and install bolts in the installation hole 6 to fix the water-cooling part 4 on the mold body 3. The plug-in groove 12 and the opposite surface of the water-cooling part 4 are provided with drainage grooves. The two drainage grooves cooperate to form a water-cooling channel 9. The water-cooling part 4 is also provided with a water inlet 7 and a water return port 8. When working, cooling water is introduced, and the cooling water enters the head end of the water-cooling channel 9 through the water inlet 7, and then flows back to the water return port 8 through the tail end of the water-cooling channel 9.
[0046] After the above assembly is completed, the tightening bolt 15 is installed on the quick-release part 2 and tightened against the flange of the extrusion tube 1, so that the first sealing ring 13 in the groove of the extrusion tube 1 is in close contact with the mold body 3 to prevent leakage of material during extrusion. In this way, the assembly of the utility model is completed. After the assembly is completed, the extruder can be started to extrude the catalyst carrier into strips.
[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A propane dehydrogenation catalyst carrier preparation mold, characterized in that: The invention comprises a die body (3) installed at the outlet end of an extrusion tube (1), the die body (3) being provided with a discharge hole (5) connected with the extrusion tube (1), and the die body (3) being also provided with a water cooling channel (9).
2. The propane dehydrogenation catalyst carrier preparation mold according to claim 1, characterized in that: The water cooling channel (9) is located at the center of the mold body (3), and the discharge hole (5) is located at the periphery of the water cooling channel (9).
3. The mold for preparing a propane dehydrogenation catalyst carrier according to claim 1, characterized in that: The discharge hole (5) is located at the center of the mold body (3), and the water cooling channel (9) is located outside the discharge hole (5).
4. The mold for preparing a propane dehydrogenation catalyst carrier according to claim 1, characterized in that: The discharge holes (5) are divided into a plurality of groups, and the plurality of discharge holes (5) in each group are arranged in a circular ring, and the plurality of groups of discharge holes (5) are arranged in a concentric radial spacing manner; the water cooling channel (9) comprises circular ring segments respectively located outside each group of discharge holes (5) or inside each group of discharge holes (5), and the plurality of circular ring segments are arranged in a connected manner.
5. The mold for preparing a propane dehydrogenation catalyst carrier according to any one of claims 1 to 4, characterized in that: The mold body (3) is provided with a plug-in groove (12), a water-cooling component (4) is installed in the plug-in groove (12), and drainage grooves are provided on the opposite surfaces of the plug-in groove (12) and the water-cooling component (4), and the two drainage grooves cooperate to form a water-cooling channel (9); the water-cooling component (4) is also provided with a water inlet (7) and a water return port (8) connected to the water-cooling channel (9).
6. The mold for preparing a propane dehydrogenation catalyst carrier according to any one of claims 1 to 4, characterized in that: The outlet end of the extrusion tube (1) is also provided with a quick-release component (2) for pressing the die body (3) onto the end surface of the extrusion tube (1).
7. The mold for preparing a propane dehydrogenation catalyst carrier according to claim 6, characterized in that: The quick-release component (2) comprises two hoop bodies which are mounted on the extrusion tube (1), the hoop bodies are provided with a clamping groove (10) which is engaged with the flange on the extrusion tube (1), and the hoop bodies are also provided with a mounting groove (11), and the mold body (3) is located in the mounting groove (11).
8. The mold for preparing a propane dehydrogenation catalyst carrier according to claim 7, characterized in that: The quick-release component (2) is also provided with a tightening bolt (15) which abuts against the flange on the extrusion tube (1).
9. The mold for preparing a propane dehydrogenation catalyst carrier according to claim 5, characterized in that: The water cooling component (4) is also provided with a mounting hole (6), and a bolt for fixing the water cooling component (4) in the plug-in slot (12) is installed in the mounting hole (6).
10. The mold for preparing a propane dehydrogenation catalyst carrier according to claim 5, characterized in that: A first sealing ring (13) is installed at the contact point between the extrusion tube (1) and the die body (3); and a second sealing ring (14) is installed at the contact point between the die body (3) and the water-cooling part (4).