A high tank body catalyst uniform filling device

Abstract

The utility model provides a kind of high tank body catalyst uniform filling device, it is specifically related to construction site technical field, can solve the technical problems of high tank body nickel-aluminium catalyst filling high crushing rate, uneven distribution, artificial safety hazard.This device includes the mounting bracket of being arranged at high tank body top feed inlet position, the mounting bracket is provided with feed hopper, the lower portion of the feed hopper is detachably connected with spiral down mechanism, the spiral down mechanism is inserted into the inner chamber of the high tank body;The discharge outlet below of the spiral down mechanism is equipped with material blocking diffusion mechanism, the bottom of the material blocking diffusion mechanism is equipped with air curtain mechanism.This device is through the collaborative design of three major core structures of spiral deceleration down, mechanical dispersion and air curtain auxiliary, systematically solves the three major problems of high tank body nickel-aluminium catalyst filling high crushing rate, uneven distribution, artificial safety hazard.

Description

Technical Field

[0001] This utility model relates to the field of construction technology, and more specifically, to a device for uniformly filling catalysts in high-capacity tanks. Background Technology

[0002] In chemical production, nickel-aluminum catalysts are widely used in processes such as hydrogenation reactions. The quality and uniformity of their loading directly affect reaction efficiency and catalyst life. However, when loading high-capacity tanks, the existing technology of direct dumping has significant drawbacks: First, when the catalyst falls from the top of the tank, the high-height particles collide with the tank body, causing breakage, and the accumulation of fine powder in the catalyst easily forms channels, wasting catalyst and affecting reaction efficiency; second, traditional loading results in "central accumulation and sparse sidewalls," with particle stratification (small particles in the center and large particles on the edges), leading to deviations in bed density uniformity and increasing reaction uncertainty; third, manual entry into the tank is required to level the catalyst surface, which is inefficient and poses safety hazards such as confined space operations and dust contamination. Utility Model Content

[0003] The purpose of this invention is to provide a device for uniformly filling catalysts in high-capacity tanks, which can solve the technical problems of high breakage rate, uneven distribution, and safety hazards of manual loading of nickel-aluminum catalysts in high-capacity tanks.

[0004] The embodiments of this utility model are achieved through the following technical solutions:

[0005] A catalyst uniform filling device for a high-capacity tank includes a mounting frame installed at the inlet position at the top of the high-capacity tank. A feed funnel is installed on the mounting frame, and a spiral feeding mechanism is detachably connected below the feed funnel. The spiral feeding mechanism extends into the inner cavity of the high-capacity tank. A material blocking and diffusion mechanism is provided below the outlet of the spiral feeding mechanism, and an air curtain mechanism is provided at the bottom of the material blocking and diffusion mechanism.

[0006] In some embodiments, the spiral feeding mechanism includes a vertically arranged spiral feeding tube detachably connected to the bottom of the feeding funnel. The spiral feeding tube is composed of several segmented tubes that are detachably spliced ​​together. Each segmented tube has an installation rod at its inner axial position. A spiral plate is sleeved on the outer side of the installation rod, and the outer edge of the spiral plate is fixedly connected to the inner wall of the segmented tube.

[0007] In some embodiments, a first flange and a second flange are fixedly sleeved on the upper and lower ends of the segmented pipe body, respectively, and adjacent first flanges and second flanges are connected by bolts.

[0008] In some embodiments, the surfaces of the spiral plates inside adjacent segmented pipe bodies are in contact; the outer edges of the first flange and the second flange are respectively provided with positioning blocks corresponding in the vertical direction.

[0009] In some embodiments, the material blocking and diffusion mechanism includes a relief rod fixedly connected to the bottom end of the mounting rod inside the lowest segmented tube body, and a material distribution plate fixedly connected to the bottom end of the relief rod, the top surface of the material distribution plate being arc-shaped.

[0010] In some embodiments, the air curtain mechanism includes an air pipe vertically disposed at the bottom of the distribution plate, the bottom end of the air pipe being closed, and multiple exhaust nozzles arranged around the sidewall of the air pipe in the vertical direction. The air pipe is connected to an air pump station via a pipeline extending to the outside of the high tank.

[0011] In some embodiments, the top of the distribution plate is provided with a protective sleeve, the pipeline is sleeved inside the protective sleeve and its bottom end extends out from the bottom of the distribution plate and is connected to the air pipe.

[0012] In some embodiments, the mounting frame includes a plurality of columns surrounding the feed inlet at the top of the tank body, the top of the columns being fixedly connected to a mounting plate, the mounting plate having a mounting through hole, and the inclined surface of the feed funnel engaging with the inner side of the mounting through hole.

[0013] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0014] 1. This device systematically solves three major problems in the filling of high-volume nickel-aluminum catalysts: high breakage rate, uneven distribution, and safety hazards due to human intervention, through the coordinated design of three core structures: spiral deceleration feeding, mechanical dispersion, and air curtain assistance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a high-capacity catalyst uniform filling device provided in an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the spiral feeding tube provided in an embodiment of the present invention;

[0018] Figure 3This is a schematic diagram of the structure of the top of the high tank provided in an embodiment of this utility model.

[0019] Icons: 1. Mounting bracket; 2. Feed hopper; 3. Spiral feed pipe; 4. Segmented pipe body; 5. Mounting rod; 6. Spiral plate; 7. First flange; 8. Second flange; 9. Bolt; 10. Positioning block; 11. Displacement rod; 12. Material distribution plate; 13. Air pipe; 14. Air nozzle; 15. Pipeline; 16. Protective sleeve; 17. Column; 18. Mounting plate; 19. Mounting through hole. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] 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 claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Please see Figures 1-3 As shown, the main body of this embodiment is a high-tank catalyst uniform filling device, including a mounting frame 1 set at the feed inlet position at the top of the high tank. A feed funnel 2 is set on the mounting frame 1. A spiral feeding mechanism is detachably connected to the bottom of the feed funnel 2 through a flange. The spiral feeding mechanism extends into the inner cavity of the high tank. A material blocking and diffusion mechanism is provided below the discharge port of the spiral feeding mechanism. An air curtain mechanism is provided at the bottom of the material blocking and diffusion mechanism.

[0026] Furthermore, the spiral feeding mechanism includes a vertically arranged spiral feeding pipe 3 that is detachably connected to the bottom of the feeding funnel 2. The spiral feeding pipe 3 is composed of several segmented pipe bodies 4 that are detachably spliced ​​together. Each segmented pipe body 4 has an installation rod 5 at its inner axial position. A spiral plate 6 is sleeved on the outer side of the installation rod 5. The outer edge of the spiral plate 6 is fixedly connected to the inner wall of the segmented pipe body 4.

[0027] Furthermore, a first flange 7 and a second flange 8 are fixedly sleeved on the upper and lower ends of the segmented pipe body 4, respectively, and adjacent first flanges 7 and second flanges 8 are connected by bolts 9.

[0028] Furthermore, the surfaces of the spiral plates 6 inside the adjacent segmented pipe bodies 4 are in contact; the outer edges of the first flange 7 and the second flange 8 are respectively provided with positioning blocks 10 corresponding in the vertical direction.

[0029] Furthermore, the material blocking and diffusion mechanism includes a relief rod 11 fixedly connected to the bottom end of the mounting rod 5 inside the lowest segmented tube 4, and a material distribution plate 12 fixedly connected to the bottom end of the relief rod 11, the top surface of the material distribution plate 12 being arc-shaped.

[0030] Furthermore, the air curtain mechanism includes an air pipe 13 vertically disposed at the bottom of the distribution plate 12. The bottom end of the air pipe 13 is closed, and multiple exhaust nozzles 14 are arranged around the side wall of the air pipe 13 in the vertical direction. The air pipe 13 is connected to an air pump station through a pipeline 15 extending to the outside of the high tank.

[0031] Furthermore, the top of the material distribution plate 12 is provided with a protective sleeve 16, and the pipe 15 is sleeved inside the protective sleeve 16 and its bottom end extends out from the bottom of the material distribution plate 12 and is connected to the air pipe 13.

[0032] Furthermore, the mounting frame 1 includes several columns 17 surrounding the feed inlet at the top of the high tank. The top of each column 17 is fixedly connected to a mounting plate 18. The mounting plate 18 is provided with a mounting through hole 19, and the inclined surface of the feed funnel 2 engages with the inner side of the mounting through hole 19.

[0033] In use, the air pump station is first started, and the air nozzle 14 of the air pipe 13 sprays air to form a stable air curtain; the catalyst is added at a constant speed from the feed funnel 2, and the material first falls into the spiral feed pipe 3, and slides down the spiral plate 6 in the segmented pipe body 4. Due to the guiding effect of the spiral plate 6, the catalyst descends slowly in a spiral trajectory, and the collision between particles is significantly reduced.

[0034] It is worth mentioning that during installation, the positioning blocks 10 on the first flange 7 and the second flange 8 are aligned vertically to ensure that the surfaces of adjacent spiral plates 6 are in contact, ensuring continuous material feeding and avoiding local impact breakage caused by material jamming.

[0035] When the catalyst that has slid down to the bottom contacts the arc-shaped distribution plate 12, it is pushed outwards by the arc surface, initially breaking the "center accumulation" trend; nitrogen gas is injected from the multiple exhaust nozzles 14 on the side wall of the gas pipe 13, forming a vertical gas curtain. The diffused catalyst particles then enter the gas curtain area. Small particles are lifted by the airflow and move towards the side wall of the tank, while large particles fall evenly to the center and edges due to inertia and buffered by the gas curtain, achieving density balance throughout the entire tank.

[0036] When the catalyst is filled to the corresponding position from the distribution plate 12, feeding is paused. The crane connects the remaining section of the pipe body 4 below the section to be disassembled 4 with the lifting device, loosens the bolts 9 between the corresponding first flange 7 and second flange 8, removes the uppermost section of the pipe body, moves the remaining section of the pipe body 4 upward with the crane, and connects the first flange 7 at the top of the remaining section of the pipe body 4 to the flange at the bottom of the feed funnel 2, and then continues feeding; repeat this operation until the catalyst fills the tank. No manual loading is required throughout the process, and finally, a filling with low breakage rate and high uniformity is completed.

[0037] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for uniformly filling catalyst in a high-capacity tank, characterized in that, The device includes a mounting frame (1) located at the inlet of the top of the tank body, a feeding funnel (2) on the mounting frame (1), a spiral feeding mechanism detachably connected to the bottom of the feeding funnel (2), the spiral feeding mechanism extending into the inner cavity of the tank body; a material blocking and diffusion mechanism is provided below the outlet of the spiral feeding mechanism, and an air curtain mechanism is provided at the bottom of the material blocking and diffusion mechanism; The spiral feeding mechanism includes a vertically arranged spiral feeding pipe (3) that is detachably connected to the bottom of the feeding funnel (2). The spiral feeding pipe (3) is composed of several segmented pipe bodies (4) that are detachably spliced ​​together. Each segmented pipe body (4) has an installation rod (5) at the inner axis position. A spiral plate (6) is sleeved on the outer side of the installation rod (5). The outer edge of the spiral plate (6) is fixedly connected to the inner wall of the segmented pipe body (4). The material blocking and diffusion mechanism includes a relief rod (11) fixedly connected to the bottom end of the mounting rod (5) inside the lowest segmented tube (4), and a material distribution plate (12) is fixedly connected to the bottom end of the relief rod (11), and the top surface of the material distribution plate (12) is arc-shaped. The air curtain mechanism includes an air pipe (13) vertically disposed at the bottom of the distribution plate (12), the bottom end of the air pipe (13) is closed, and multiple exhaust nozzles (14) are arranged around the side wall of the air pipe (13) in the vertical direction. The air pipe (13) is connected to the air pump station through a pipeline (15) extending to the outside of the high tank.

2. The high-capacity catalyst uniform filling device according to claim 1, characterized in that, The upper and lower ends of the segmented pipe body (4) are respectively fixedly fitted with a first flange (7) and a second flange (8), and adjacent first flanges (7) and second flanges (8) are connected by bolts (9).

3. The high-capacity catalyst uniform filling device according to claim 2, characterized in that, The surfaces of the spiral plates (6) inside the adjacent segmented pipe bodies (4) are in contact; the outer edges of the first flange (7) and the second flange (8) are respectively provided with positioning blocks (10) corresponding to each other in the vertical direction.

4. The high-capacity catalyst uniform filling device according to claim 1, characterized in that, The top of the material distribution plate (12) is provided with a protective sleeve (16), and the pipe (15) is sleeved inside the protective sleeve (16) and its bottom end passes through the bottom of the material distribution plate (12) and is connected to the air pipe (13).

5. The high-capacity catalyst uniform filling device according to claim 1, characterized in that, The mounting frame (1) includes several columns (17) surrounding the feed inlet at the top of the tank. The top of the column (17) is fixedly connected to a mounting plate (18). The mounting plate (18) is provided with a mounting through hole (19). The inclined surface of the feed funnel (2) engages with the inside of the mounting through hole (19).

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