Propane dehydrogenation catalyst dipping device
The catalyst impregnation device, designed with an inclined cylinder and spiral blades, solves the problems of low automation and low output of existing equipment, achieves efficient catalyst production, avoids environmental pollution and equipment corrosion, and improves metal dispersion.
Patent Information
- Application Number
- CN202422915710.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-11-27
AI Technical Summary
Existing catalyst impregnation equipment suffers from low automation, low output, excessive water content leading to equipment corrosion and environmental pollution, and low metal dispersion.
The design employs an inclined cylinder and spiral blades, combined with a closed feeding and automatic discharging system. It utilizes hot air drying to prevent leakage and corrosion, achieving automated impregnation and pre-drying.
It increased catalyst yield, reduced environmental pollution and equipment corrosion, improved metal dispersion, and reduced labor costs.
Smart Images
Figure CN223587173U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to catalyst impregnation technical field, concretely relates to a propane dehydrogenation catalyst impregnation device. BACKGROUND
[0002] Impregnation method is the most common preparation method for industrial preparation of solid catalyst, namely, one or more active components are uniformly loaded on a carrier. Generally, a carrier with a porous structure is contacted with a metal salt solution, so that the metal salt solution is adsorbed or stored in the carrier pores. After impregnation, the excess solution is removed, and the obtained sample is dried, calcined and activated to obtain a catalyst product. The impregnation methods mainly include supersaturation impregnation and equal volume impregnation. Impregnation method can make the metal components uniformly distributed on the carrier, reduce the amount of active components, and improve the utilization rate of active components.
[0003] The dehydrogenation catalyst impregnation device is mainly used for propane dehydrogenation catalyst impregnation, mainly for chromium-containing impregnation liquid. Most of the existing catalyst impregnation equipment is single, the yield is low (the existing catalyst impregnation equipment adopts a cylinder to adjust the rotation to make the metal components uniformly distributed on the carrier. This rotation mode limits the size of the cylinder due to power problems), the degree of automation is not high, manual feeding and discharging are required; the material after impregnation contains too much water, the impregnation liquid leaks seriously, pollutes the environment and the health of personnel; in addition, too much water will cause serious corrosion of the drying equipment, metal migration during drying, and low metal dispersion. UTILITY MODEL CONTENTS
[0004] The utility model aims to provide a propane dehydrogenation catalyst impregnation device to solve at least one of the above problems in the prior art.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] A propane dehydrogenation catalyst impregnation device, comprising a support, a cylinder obliquely arranged and rotationally connected to the support, and a driving device for driving the cylinder to rotate on the support, the driving device being mounted on the support; the bottom surface of the cylinder is rotationally connected with a hollow shaft, one end of the hollow shaft is located outside the cylinder, and the other end of the hollow shaft is located inside the cylinder and connected with a spiral blade; the hollow shaft is sleeved with a liquid inlet pipeline, a hot air pipeline and an exhaust pipeline, one end of the hollow shaft is provided with an impregnation liquid inlet communicated with the inlet of the liquid inlet pipeline, a hot air inlet communicated with the inlet of the hot air pipeline and a waste gas discharge port communicated with the outlet of the exhaust pipeline, and the other end of the hollow shaft is provided with an impregnation liquid spray head communicated with the outlet of the liquid inlet pipeline, a hot air outlet communicated with the outlet of the hot air pipeline and an exhaust filter communicated with the inlet of the exhaust pipeline.
[0007] As one preferred technical scheme in the utility model, the side wall of the lower end of the cylinder is provided with a liquid discharge port, and a filter screen is arranged in the cylinder at the inlet of the liquid discharge port.
[0008] As one preferred technical scheme in the utility model, the top surface of the cylinder is provided with a material inlet, and a sealing cover is arranged at the material inlet.
[0009] As one preferred technical scheme in the utility model, a swing rod is arranged outside the sealing cover, the lower end of the swing rod is rotatably connected with the sealing cover, one side of the swing rod is connected with a cover opening device, the swing rod is driven to swing through the cover opening device, and then the sealing cover is opened through the swing of the swing rod.
[0010] As one preferred technical scheme in the utility model, the cover opening device is a hydraulic cylinder, the extension rod of the hydraulic cylinder is rotatably connected with the upper end of the swing rod, the cylinder body of the hydraulic cylinder is rotatably connected with one end of an L-shaped positioning seat, and the other end of the L-shaped positioning seat is rotatably connected with the middle part of the swing rod.
[0011] As one preferred technical scheme in the utility model, an installation groove is formed in the side of the lower end of the swing rod, facing the sealing cover, a central shaft is fixed on the outer end surface of the sealing cover, and the central shaft is rotatably connected in the installation groove through a self-aligning roller bearing.
[0012] As one preferred technical scheme in the utility model, two support wheel groups are arranged on the support, the two support wheel groups are symmetrically supported on the two sides of the lower part of the cylinder, and each support wheel group comprises at least two support wheels.
[0013] As one preferred technical scheme in the utility model, the driving device comprises a driving gear and a driven gear connected through a belt, and a driving motor installed on the support, the motor shaft of the driving motor is connected with the driving gear, and the driven gear is installed on the bottom surface of the cylinder; the hollow shaft coaxially penetrates the center hole of the driven gear.
[0014] Advantages: in the utility model, the immersion liquid is pumped into the inside of the cylinder through the immersion liquid inlet metering pump during work, the rotation is stopped after 30 minutes of liquid spraying, the excess immersion liquid in the inside is discharged, the hot air inlet and the waste gas discharge port are opened, drying is started until there is no condensate water in the heat exchanger at the rear end of the discharge port, the hot air inlet and the waste gas discharge port are closed, the driving device is closed, the cylinder stops rotating, and then the driving device is reversed to realize discharging. Compared with the prior art, the cylinder arranged to rotate can be arranged as a single kettle with larger volume, thereby improving the yield, the automatic feeding and discharging can be realized by cooperating with the spiral blade, the labor cost is saved, the immersion liquid is treated in a closed mode, the leakage of the chromium-containing waste liquid can be avoided, the carrier can be pre-dried after immersion, the environmental pollution and the corrosion of the drying equipment are avoided, the proportion of metal migration is reduced, and the catalyst with better dispersion degree is output. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the interior of the cylinder of this utility model.
[0017] In the diagram: 1-Support; 2-Cylinder; 3-Drive device; 4-Hollow shaft; 5-Impregnating liquid inlet; 6-Hot air inlet; 7-Exhaust gas outlet; 8-Impregnating liquid spray head; 9-Hot air outlet; 10-Exhaust filter; 11-Drain port; 12-Filter screen; 13-Sealing cover; 14-Swing rod; 15-Opening device; 16-L-shaped positioning seat; 17-Helical blade; 18-Support wheel. Detailed Implementation
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.
[0019] Example:
[0020] like Figure 1 and Figure 2As shown, the embodiment provides a kind of propane dehydrogenation catalyst impregnation device, including support 1, the cylinder 2 of inclination setting and rotation connection on support 1 and the driving device 3 of driving cylinder 2 on support 1 is rotated, driving device 3 is installed on support 1, further by driving device 3 can control cylinder 2 on support 1 is rotated, and the cylinder 2 of inclination setting can drive its internal material to overturn when rotating;The bottom surface of the cylinder 2 is rotatably connected with the hollow shaft 4, one end of the hollow shaft 4 is located outside the cylinder 2, the other end of the hollow shaft 4 is located in the cylinder 2 and is connected with the spiral blade 17, when the cylinder 2 rotates, the spiral blade 17 can relatively stir internal material, to make the material more quickly and uniformly stirred, and simultaneously can be realized according to situation order feeding reverse discharge;The hollow shaft 4 is sleeved with liquid inlet pipeline, hot air pipeline and exhaust pipeline, one end of the hollow shaft 4 is provided with impregnation liquid inlet 5 communicated with the inlet of liquid inlet pipeline, hot air inlet 6 communicated with the inlet of hot air pipeline and exhaust outlet 7 communicated with the outlet of exhaust pipeline, the other end of the hollow shaft 4 is provided with impregnation liquid spray head 8 communicated with the outlet of liquid inlet pipeline, hot air outlet 9 communicated with the outlet of hot air pipeline and exhaust filter 10 communicated with the inlet of exhaust pipeline, it is convenient to spray impregnation liquid in the cylinder 2 by liquid inlet pipeline, so as to obtain the required metal salt solution after being contacted with the material in the cylinder 2, then by the rotation of the cylinder 2, it is fully absorbed or stored in the carrier hole, then hot air is injected into the cylinder 2 by hot air pipeline, and the sample is dried, calcined and activated, the waste gas is discharged through the exhaust pipeline in this process, to avoid environmental pollution and dry equipment corrosion, reduce the proportion of metal migration, and produce better catalyst with better dispersion.
[0021] The impregnation liquid is pumped into the cylinder 2 by the impregnation liquid inlet 5 metering pump during work, and the liquid spraying is completed after rotating for 30 minutes, then the rotation is stopped, the excess impregnation liquid in the cylinder 2 is discharged, the hot air inlet 6 and the exhaust outlet 7 are opened, and the drying is started until there is no condensate water in the heat exchanger at the rear end of the exhaust outlet, then the hot air inlet 6 and the exhaust outlet 7 are closed, the driving device 3 is closed, and the cylinder 2 stops rotating, then the driving device 1 is opened in reverse rotation to realize the discharge.
[0022] As a preferred embodiment in the present embodiment, it needs to be explained further that the side wall of the lower end of the cylinder 2 is provided with a liquid discharge port 11, and the impregnation liquid is pumped into the inside of the impregnation device through the impregnation liquid inlet 5, and after the liquid spraying is completed, the rotation is stopped for 30 minutes, the rotation is stopped, the liquid discharge port 11 is opened, the excess impregnation liquid is discharged, and the liquid discharge port 11 is closed. The filter screen 12 is arranged in the cylinder 2 at the inlet of the liquid discharge port 11, which is convenient for filtering and preventing the material from being discharged or clogging the liquid discharge port 11.
[0023] As a preferred embodiment in the present embodiment, it needs to be explained further that the top surface of the cylinder 2 is provided with a material inlet, and the material inlet is provided with a sealing cover 13. When the cylinder 2 rotates, the sealing property can be ensured.
[0024] As a preferred embodiment in the present embodiment, it needs to be explained further that the sealing cover 13 is provided with a swing rod 14, the lower end of the swing rod 14 is rotatably connected with the sealing cover 13, and the swing rod 14 does not affect the rotation of the sealing cover 13 during the process of opening or closing the sealing cover 13. One side of the swing rod 14 is connected with an opening device 15, which is used to drive the swing rod 14 to swing through the opening device 15, and then the sealing cover 13 is opened through the swing of the swing rod 14.
[0025] As a preferred embodiment in the present embodiment, it needs to be explained further that the opening device 15 is a hydraulic cylinder, the telescopic rod of the hydraulic cylinder is rotatably connected with the upper end of the swing rod 14, and is installed outside. The cylinder body of the hydraulic cylinder is rotatably connected with one end of an L-shaped positioning seat 16, and the other end of the L-shaped positioning seat 16 is rotatably connected with the middle part of the swing rod 14. Thus, the swing of the swing rod 14 can be realized by the extension and retraction of the hydraulic cylinder, and the opening and closing of the sealing cover 13 can be realized.
[0026] As a preferred embodiment in the present embodiment, it needs to be explained further that the lower end of the swing rod 14 is provided with a mounting groove on the side facing the sealing cover 13, and a center shaft is fixed on the outer end surface of the sealing cover 13. The center shaft is rotatably connected in the mounting groove through a self-aligning roller bearing, which ensures the stability and flexibility of the sealing cover 13, and ensures that the sealing cover 13 can rotate with the cylinder 2.
[0027] As a preferred embodiment in the present embodiment, it needs to be explained further that the support seat 1 is provided with two support wheel groups, and the two support wheel groups are symmetrically supported on the two sides of the lower part of the cylinder 2. Each support wheel group includes at least two support wheels 18, which effectively supports the cylinder 2 and ensures that the cylinder 2 can rotate.
[0028] As a preferred embodiment in the embodiment, it needs to be further explained that the driving device 3 comprises a driving gear and a driven gear connected through a belt, and a driving motor installed on the support 1, a motor shaft of the driving motor is connected with the driving gear, the driven gear is installed on the bottom surface of the cylinder body 2, the structure is simple and stable, and the cylinder body 2 can be easily driven to rotate; the hollow shaft 4 coaxially penetrates the center hole of the driven gear, and does not affect the installation of the hollow shaft 4.
[0029] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the scope of protection of the present application.
Claims
1. A propane dehydrogenation catalyst impregnation apparatus characterized by, The utility model provides a kind of liquid immersion drying device, including support (1), cylinder (2) is arranged obliquely and is rotatably connected on support (1) and drive device (3) for driving cylinder (2) to rotate on support (1), drive device (3) is installed on support (1);The bottom surface of the cylinder (2) is rotatably connected with hollow shaft (4), one end of hollow shaft (4) is located outside cylinder (2), the other end of hollow shaft (4) is located inside cylinder (2) and is connected with helical blade (17);The hollow shaft (4) is sleeved with liquid inlet pipeline, hot air pipeline and exhaust pipeline, one end of hollow shaft (4) is provided with impregnation liquid inlet (5) communicated with liquid inlet pipeline inlet, hot air inlet (6) communicated with hot air pipeline inlet and exhaust outlet (7) communicated with exhaust pipeline outlet, the other end of hollow shaft (4) is provided with impregnation liquid spray head (8) communicated with liquid outlet pipeline outlet, hot air outlet (9) communicated with hot air pipeline outlet and exhaust filter (10) communicated with exhaust pipeline inlet.
2. The propane dehydrogenation catalyst impregnation apparatus of claim 1, wherein, The side wall of the lower end of the cylinder (2) is provided with a liquid outlet (11), and a filter screen (12) is arranged in the cylinder (2) at the inlet of the liquid outlet (11).
3. The catalyst impregnation apparatus for propane dehydrogenation according to claim 1 or 2, characterized in that, A material inlet is formed in the top surface of the cylinder (2), and a sealing cover (13) is installed at the material inlet.
4. The propane dehydrogenation catalyst impregnation apparatus of claim 3, wherein, A swing rod (14) is arranged outside the sealing cover (13), the lower end of the swing rod (14) is rotatably connected with the sealing cover (13), one side of the swing rod (14) is connected with a cover opening device (15), so that the swing rod (14) is driven to swing by the cover opening device (15), and the sealing cover (13) is opened by the swing of the swing rod (14).
5. A propane dehydrogenation catalyst impregnation apparatus according to claim 4, wherein The cover opening device (15) is a hydraulic cylinder, the extension rod of the hydraulic cylinder is rotatably connected with the upper end of the swing rod (14), the cylinder body of the hydraulic cylinder is rotatably connected with one end of an L-shaped positioning seat (16), and the other end of the L-shaped positioning seat (16) is rotatably connected with the middle part of the swing rod (14).
6. The propane dehydrogenation catalyst impregnation apparatus of claim 4, wherein, An installation groove is formed in the side of the lower end of the swing rod (14) facing the sealing cover (13), a central shaft is fixed on the outer end surface of the sealing cover (13), and the central shaft is rotatably connected in the installation groove through a self-aligning roller bearing.
7. The propane dehydrogenation catalyst impregnation apparatus of claim 1, wherein, Two support wheel groups are arranged on the support (1), and the two support wheel groups are symmetrically supported on the two sides of the lower part of the cylinder (2), and each support wheel group comprises at least two support wheels (18).
8. The propane dehydrogenation catalyst impregnation apparatus of claim 1, wherein, The drive device (3) comprises a driving gear and a driven gear connected by a belt, and a driving motor installed on the support (1), the motor shaft of the driving motor is connected with the driving gear, and the driven gear is installed on the bottom surface of the cylinder (2); the hollow shaft (4) coaxially penetrates the center hole of the driven gear.