Reactor catalyst loading equipment
By designing the reactor catalyst loading equipment, the uniform drop and scattering of the catalyst is achieved by using the inverted trapezoidal plate and the sprinkler device, the problems of low and uneven loading efficiency in the prior art are solved, and the service life of the catalyst is improved.
Patent Information
- Application Number
- CN202421509841.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-06-28
AI Technical Summary
In the prior art, the catalyst loading efficiency is low and uneven, resulting in uneven heat and mass transfer, which may lead to local overheating of the catalyst bed and affecting service life.
A reactor catalyst loading equipment is designed, including a storage silo, a conveying cylinder, an inverted trapezoidal plate and a sprinkler device. Through the combination of an inverted trapezoidal plate and a sprinkler device, the uniform drop and scattering of the catalyst are achieved.
It improves the efficiency and uniformity of catalyst loading, reduces the risk of local overheating of the catalyst bed, and extends the service life of the catalyst.
Smart Images
Figure CN222724276U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of catalyst filling, in particular to a reactor catalyst filling device. Background Art
[0002] Reactors are widely used in the petrochemical industry. The loading of catalysts directly affects the quality and output of products, and even production safety. If the catalyst is improperly loaded, the medium will be unevenly distributed in the catalyst bed, resulting in obvious differences in heat transfer and mass transfer. Since many chemical reactions are endothermic or exothermic reactions, the endothermic or exothermic heat of the reaction will be different. In severe cases, it may cause local overheating of the catalyst bed, thereby affecting the service life of the catalyst in that area. At present, the method of loading catalysts is mainly based on manual loading, which is to manually place the catalyst on the upper part of the reaction tube, loosen the bag mouth, and let the catalyst fall. This loading method is inefficient and the catalyst loading is uneven. Utility Model Content
[0003] The utility model provides a reactor catalyst filling device.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A catalyst loading device for a reactor comprises a storage bin, wherein a conveying cylinder is movably connected to the top of the storage bin, the conveying cylinder is connected to the storage bin, a feed bin is fixed to the top of the conveying cylinder, the conveying cylinder is gradually inclined downward in a direction away from the feed bin, a collecting box is arranged at the bottom of the inclined side of the conveying cylinder, the collecting box is connected to the conveying cylinder, a screen is arranged between the collecting box and the conveying cylinder, lubricating belts are fixed to the outer rings of the top and bottom of the storage bin respectively, an inverted trapezoidal plate is sealed and fixed inside the storage bin, a uniform spreading device is sealed and fixed inside the storage bin, the uniform spreading device is located at the bottom of the opening of the inverted trapezoidal plate, the uniform spreading device comprises a diffusion ring, a conical block is fixed at the center position of the diffusion ring, the top of the conical block is a smooth inclined surface, a plurality of bulk material troughs are equidistantly arranged on the conical block, a plurality of paddles are equidistantly fixed in annular manner between the diffusion ring and the conical block, a gap is arranged between two adjacent paddles, the storage bin is provided with a rope groove, and a rope is arranged in the rope groove.
[0006] Furthermore, the collection box is slidably connected to a collection shovel.
[0007] Furthermore, the material of the lubricating tape 7 may be polytetrafluoroethylene, and the thickness of the lubricating tape 7 is 5 mm.
[0008] Furthermore, the blades are made of polytetrafluoroethylene.
[0009] Furthermore, a rotating shaft is radially installed on the inner side of the bottom port of the storage bin, a hook is hung at the middle position of the rotating shaft, a discharge door is hinged on the rotating shaft, a slider is slidably connected in the storage bin, one side end face of the slider is located in the storage bin and is connected to a pull rope, a vertical plate is arranged in the discharge bin, and a spring is arranged between the vertical plate and the slider.
[0010] Furthermore, the hook is hung with an outer spreading block via a hanging rope, and a plurality of spreading springs are fixed at equal intervals on the outer circle of the outer spreading block.
[0011] Furthermore, a slider is slidably connected in the storage bin, and a side end surface of the slider located in the storage bin is connected to a pull rope. A vertical plate is arranged in the storage bin, and a spring is arranged between the vertical plate and the slider.
[0012] Beneficial effects: The utility model has an inverted trapezoidal plate and a spreading device sealed and fixed inside the storage bin. After the catalyst enters the storage bin, it will be collected by the inverted trapezoidal plate and fall through the slope of the inverted trapezoidal plate itself. The catalyst falls onto the conical block of the spreading device. The catalyst part that falls on the conical block slides into the blade position and the falling part that passes through the gap between two adjacent blades directly falls through the bulk trough on the conical block to achieve uniform scattering of the catalyst. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the main structure of the utility model;
[0014] Figure 2 It is a partial front view full cross-sectional view of the utility model;
[0015] Figure 3 For this utility model Figure 1 Middle AA section view;
[0016] Figure 4 For this utility model Figure 1 Middle BB section view;
[0017] Figure 5 For this utility model Figure 1 Middle CC section view;
[0018] Figure 6 For this utility model Figure 1 A partial enlarged view of middle D;
[0019] Figure 7 For this utility model Figure 2 A partial enlarged view of E.
[0020] In the figure: 1 storage bin, 2 conveying cylinder, 3 feed bin, 4 collecting box, 5 screen, 6 collecting shovel, 7 lubricating belt, 8 inverted trapezoidal plate, 9 evenly spreading device, 10 diffusion ring, 11 conical block, 12 bulk material trough, 13 rotating shaft, 14 hook, 15 hanging rope, 16 external spreading block, 17 spreading spring, 18 rope groove, 19 rope, 20 paddle, 21 discharge door, 22 vertical plate, 23 slider, 24 spring. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0023] Reference Figure 1-7A catalyst loading device for a reactor comprises a storage bin 1, a conveying cylinder 2 is movably connected to the top of the storage bin 1, the conveying cylinder 2 is connected to the storage bin 1, a feed bin 3 is fixed to the top of the conveying cylinder 2, the conveying cylinder 2 is gradually inclined downward in a direction away from the feed bin 3, a collecting box 4 is arranged at the bottom of the inclined side of the conveying cylinder 2, the collecting box 4 is connected to the conveying cylinder 2, a screen 5 is arranged between the collecting box 4 and the conveying cylinder 2, a collecting shovel 6 is slidably connected to the collecting box 4, and lubricating belts 7 are respectively fixed to the outer rings of the top and bottom of the storage bin 1, and the material of the lubricating belt 7 can be polytetrafluoroethylene The thickness of the lubricating belt 7 is 5 mm. By setting the lubricating belt 7, the catalyst loading equipment of the reactor can flexibly and smoothly enter the furnace tube of the tubular reactor and move freely up and down the furnace tube, reducing or avoiding the bridging between the catalyst particles, and ensuring the quality of catalyst loading. The storage bin 1 is sealed and fixed with an inverted trapezoidal plate 8, and the storage bin 1 is sealed and fixed with a uniform sprinkler 9. The uniform sprinkler 9 is located at the bottom of the opening of the inverted trapezoidal plate 8. The uniform sprinkler 9 includes a diffusion ring 10, and a conical block 11 is fixed at the center of the diffusion ring 10. The top of the conical block 11 is a smooth inclined surface. The conical block 11 is provided with a plurality of bulk material troughs 12 at equal intervals in an annular manner, a plurality of paddles 20 are fixed at equal intervals in an annular manner between the diffusion ring 10 and the conical block 11, and a gap is provided between two adjacent paddles 20. The catalyst in the storage bin 1 is gathered on the conical block 11 through the inverted trapezoidal plate 8, and the catalyst part falling on the conical block 11 slides into the position of the paddles 20 and the falling part directly falls through the bulk material trough 12 on the conical block 11 through the gap between the two adjacent paddles 20. The paddles 20 are made of polytetrafluoroethylene, and the storage bin 1 is provided with a drawstring groove 18, and a drawstring is provided in the drawstring groove 18. 19. A rotating shaft 13 is radially installed on the inner side of the bottom port of the storage bin 1, a hook 14 is hung at the middle position of the rotating shaft 13, a discharge door 21 is hinged on the rotating shaft 13, a slider 23 is slidably connected in the storage bin 1, the slider 23 is located at the bottom end face of the discharge door 21, and the slider 23 is located at one end face of the storage bin 1 and connected to a pull rope 19, a vertical plate 22 is arranged in the discharge bin, a spring 24 is arranged between the vertical plate 22 and the slider 23, an outer scattering block 16 is suspended by the hook 14 through a hanging rope 15, and a plurality of scattering springs 17 are fixed on the outer circle of the outer scattering block 16 at equal intervals.
[0024] Working process: the staff manually hangs the external spreading block 16 on the hook 14 through the hanging rope 15, inserts the storage bin 1 vertically into the tubular reactor, and manually pulls the pull rope 19 after reaching the appropriate position. After the pull rope 19 is pulled, the slider 23 is pulled, and the slider 23 slides into the storage bin 1. The discharge door 21 is opened, and the staff manually pours the catalyst of an appropriate dose into the feed bin 3. The catalyst in the feed bin 3 is fed into the storage bin 1 through the feeding tube. A screen 5 is provided between the conveying tube 2 and the collecting box 4. The screen 5 can screen the catalyst in the process of the catalyst sliding down the conveying tube 2, so that the catalyst powder or the broken catalyst falls into the collecting box 4 through the screen 5, and the intact catalyst enters the furnace tube, which is convenient for dust treatment and avoids pollution. The catalyst enters the storage bin 1 and is collected by the inverted trapezoidal plate 8 and falls through the slope of the inverted trapezoidal plate 8. The catalyst falls onto the conical block 11 of the uniform spreading device 9. The catalyst part that falls on the conical block 11 slides into the position of the blade 20 and passes through the gap between the two adjacent blades 20. The falling part directly falls through the scattering groove 12 on the conical block 11 to achieve uniform scattering of the catalyst. The catalyst in the storage bin 1 falls into the reactor under the action of weight. During the falling process, the catalyst continuously passes through the scattering springs 17 distributed on the outer scattering block 16. The trembling action of the scattering springs 17 is used to achieve uniform scattering of the catalyst. The storage bin 1 is taken out to complete the loading of the catalyst.
[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A reactor catalyst loading device, characterized in that: The invention comprises a storage bin (1), wherein a conveying cylinder (2) is movably connected to the top of the storage bin (1), wherein the conveying cylinder (2) is connected to the storage bin (1), wherein a feed bin (3) is fixed to the top of the conveying cylinder (2), wherein the conveying cylinder (2) is gradually inclined downward in a direction away from the feed bin (3), wherein a collecting box (4) is arranged at the bottom of the inclined side of the conveying cylinder (2), wherein the collecting box (4) is connected to the conveying cylinder (2), wherein a screen (5) is arranged between the collecting box (4) and the conveying cylinder (2), wherein lubricating belts (7) are fixed to the outer rings of the top and bottom of the storage bin (1), wherein an inverted trapezoidal plate (8) is sealed and fixed inside the storage bin (1), and wherein the storage bin (1) A uniform spreading device (9) is fixed inside the seal, and the uniform spreading device (9) is located at the bottom of the opening of the inverted trapezoidal plate (8). The uniform spreading device (9) comprises a diffusion ring (10), a conical block (11) is fixed at the center of the diffusion ring (10), the top of the conical block (11) is a smooth inclined surface, a plurality of bulk material troughs (12) are arranged in an annular shape at equal intervals on the conical block (11), a plurality of paddles (20) are fixed in an annular shape at equal intervals between the diffusion ring (10) and the conical block (11), and a gap is arranged between two adjacent paddles (20), and the storage bin (1) is provided with a rope draw groove (18), and a rope draw groove (18) is provided with a rope draw groove (19).
2. A reactor catalyst loading device according to claim 1, characterized in that: The collection box (4) is slidably connected to a collection shovel (6).
3. A reactor catalyst loading device according to claim 1, characterized in that: The material of the lubricating tape (7) may be polytetrafluoroethylene, and the thickness of the lubricating tape (7) is 5 mm.
4. A reactor catalyst loading device according to claim 1, characterized in that: The blade (20) is made of polytetrafluoroethylene.
5. A reactor catalyst loading device according to claim 1, characterized in that: A rotating shaft (13) is radially mounted on the inner side of the bottom port of the storage bin (1), a hook (14) is hung at the middle of the rotating shaft (13), and a discharge door (21) is hingedly connected to the rotating shaft (13).
6. A reactor catalyst loading device according to claim 5, characterized in that: The hook (14) is hung with an outer spreading block (16) via a hanging rope (15), and a plurality of spreading springs (17) are fixed at equal intervals on the outer circle of the outer spreading block (16).
7. A reactor catalyst loading device according to claim 1, characterized in that: A slider (23) is slidably connected in the storage bin (1); the slider (23) is located in the storage bin (1) and is connected to a pull rope (19) at one end surface thereof; a vertical plate (22) is arranged in the storage bin (1); and a spring (24) is arranged between the vertical plate (22) and the slider (23).