Vacuum drying equipment for solid alkyl sulfonic acid catalyst

Abstract

The utility model discloses solid alkyl sulfonic acid catalyst vacuum drying equipment, and relates to the technical field of solid alkyl sulfonic acid catalyst drying. Comprising a lower vacuum drying shell, the top end of a stirring rod makes contact and collides with a crushing block connected with the upper end of a supporting block on the outer wall of a driving rod through an extrusion shaft arranged on a connecting shaft, the crushing block extrudes and crushes a catalyst making contact with the extrusion shaft, and the catalyst is crushed in cooperation with contact of the crushing block and the extrusion shaft; therefore, the catalyst can be dried more effectively, particles of the catalyst become smaller, the surface area of the catalyst is increased, the catalyst can make contact with a drying heat source more easily, the heat exchange efficiency is improved, the catalyst can be evenly heated in the drying equipment, the stirring effect is further enhanced, and the drying efficiency is improved. The catalyst is more uniformly distributed and mixed in the drying equipment, and the drying efficiency and effect are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solid alkyl sulfonic acid catalyst drying, in particular to a solid alkyl sulfonic acid catalyst vacuum drying device. Background Art

[0002] Solid alkyl sulfonic acid catalyst is an important catalyst, and its drying process has a significant impact on the performance and stability of the catalyst.

[0003] The reference patent (CN202110528208.0) discloses a method for preparing a solid alkyl sulfonic acid catalyst, comprising the following steps: adding mercaptopropyltrimethoxysilane and propane sultone to an organic solvent, stirring at a uniform speed of 45r / min, heating to reflux, maintaining the reaction for 20h, cooling to 60-70°C after the reaction, adding silica gel in batches, continuing the reflux reaction for 2h after complete addition, separating the methanol and toluene mixture, cooling, filtering, and draining, washing the filter cake three times with toluene, and then vacuum drying to obtain a solid alkyl sulfonic acid catalyst; the alkyl sulfonic acid catalyst can be used as an acid catalyst and as a heterogeneous catalyst for alkylation, polymerization, arylation, esterification, and transesterification reactions, and the present invention is simple to operate, does not involve the oxidation reaction of the thiol group on the polysiloxane, and produces less pollution.

[0004] Traditional vacuum drying equipment has uneven catalyst distribution during the drying process, resulting in low drying efficiency. During the drying process, the catalyst may agglomerate or clump due to reduced humidity, resulting in reduced catalyst activity, affecting product quality and production efficiency. For this reason, the utility model provides a solid alkyl sulfonic acid catalyst vacuum drying equipment. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a solid alkyl sulfonic acid catalyst vacuum drying device, which solves the problem that the catalyst is unevenly distributed during the drying process of the vacuum drying device, resulting in low drying efficiency. During the drying process, the catalyst may agglomerate or agglomerate due to reduced humidity.

[0006] To achieve the above purpose, the utility model is implemented by the following technical scheme: a solid alkyl sulfonic acid catalyst vacuum drying device, comprising a lower vacuum drying shell, the left end of the lower vacuum drying shell is connected to a support seat, the upper end surface of the lower vacuum drying shell is connected to the upper vacuum drying shell, and a separation mechanism for drying the solid alkyl sulfonic acid catalyst is arranged inside the lower vacuum drying shell, and the separation mechanism includes:

[0007] The stirring assembly comprises a driving shaft connected to the inside of the support seat, the outer wall of the driving shaft is evenly distributed with stirring rods, and the inside of the stirring rods is connected to the extrusion shaft through an elastic assembly;

[0008] The crushing assembly comprises four groups of driving rods connected at the edge of the supporting seat, the outer walls of the driving rods are connected with supporting blocks, and the outer walls of the supporting blocks are evenly distributed with crushing blocks.

[0009] Preferably, the driving shaft is fixedly connected with a driving gear on one side close to the support seat, the outer wall of the driving rod on the side close to the support seat is fixedly connected with a transmission gear, and the transmission gears are arranged in four groups, and the four groups of transmission gears are meshedly connected with the driving gears.

[0010] Preferably, the elastic component includes a cavity groove opened inside the stirring rod, the bottom end of the cavity groove is connected to a spring, the other end of the spring is connected to a slider, the top end of the slider is connected to a connecting shaft, and the extrusion shaft is located on the outer surface of the connecting shaft and is rotatably connected.

[0011] Preferably, the inner ring of the spring is provided with a telescopic sleeve rod, and the upper end of the telescopic sleeve rod is fixedly connected to the slider.

[0012] Preferably, the upper end surface of the upper vacuum drying shell is provided with a feed port for loading the solid alkyl sulfonic acid catalyst, and the lower end surface of the lower vacuum drying shell is provided with a discharge port for discharging the solid alkyl sulfonic acid catalyst.

[0013] Preferably, a first mounting plate is provided at the edge of the upper vacuum drying shell, four groups of threaded bolts are evenly arranged inside the first mounting plate, and a second mounting plate is fixedly connected to the edge of the upper end surface of the lower vacuum drying shell.

[0014] Beneficial Effects

[0015] The utility model provides a vacuum drying device for solid alkyl sulfonic acid catalyst. Compared with the prior art, it has the following beneficial effects:

[0016] Firstly, the utility model stirs the solid alkyl sulfonic acid catalyst entering through the feed port by stirring the stirring rod inside the drying device, so that the solid alkyl sulfonic acid catalyst is evenly distributed inside the drying device, ensuring that all particles can contact the drying heat source, thereby accelerating the drying process, improving the drying efficiency, and helping to form convection and circulation between the catalyst particles, promoting heat exchange, and the overall operation is simple and convenient.

[0017] Secondly, the top end of the stirring rod of the utility model contacts and collides with the crushing block connected to the upper end of the supporting block on the outer wall of the driving rod through the extrusion shaft arranged on the connecting shaft, and the crushing block squeezes and crushes the catalyst in contact with the extrusion shaft, and the sliding block connected to the lower end of the extrusion shaft slides and compresses in the cavity groove inside the stirring rod through the spring, and the catalyst is crushed by the contact between the crushing block and the extrusion shaft, so as to avoid the agglomeration or agglomeration of the catalyst due to the reduction of humidity, and ensure the loose state of the catalyst, so as to dry it more effectively, make the catalyst particles smaller, and increase the surface area, so that it is easier to contact with the drying heat source, improve the heat exchange efficiency, help the catalyst to be evenly heated inside the drying equipment, further enhance the stirring effect, make the catalyst more evenly distributed and mixed inside the drying equipment, and improve the drying efficiency and effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic cross-sectional structural diagram of the lower vacuum drying shell of the utility model;

[0020] Figure 3 This is a schematic diagram of the driving gear connection structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the internal connection structure of the stirring rod of the utility model.

[0022] In the figure: 1. lower vacuum drying shell; 2. support seat; 201. drive shaft; 202. stirring rod; 3. upper support seat; 4. drive rod; 401. support block; 402. crushing block; 5. telescopic sleeve; 6. drive gear; 601. transmission gear; 7. feed port; 701. discharge port; 8. first mounting plate; 801. second mounting plate; 803. threaded bolt; 9. cavity groove; 901. spring; 902. slider; 903. connecting shaft; 904. extrusion shaft. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-4The utility model provides a technical solution: a vacuum drying device for a solid alkyl sulfonic acid catalyst, comprising a lower vacuum drying shell 1, the left end of the lower vacuum drying shell 1 is connected to a support seat 2, the upper end surface of the lower vacuum drying shell 1 is fitted and connected to an upper vacuum drying shell 3, and a separation mechanism for drying the solid alkyl sulfonic acid catalyst is arranged inside the lower vacuum drying shell 1, and the separation mechanism comprises:

[0025] The stirring assembly includes a driving shaft 201 connected to the inside of the support base 2, stirring rods 202 are evenly distributed on the outer wall of the driving shaft 201, and the inside of the stirring rod 202 is connected to the extrusion shaft 904 through an elastic assembly;

[0026] The crushing assembly includes four groups of driving rods 4 connected at the edge of the support base 2, the outer wall of the driving rod 4 is connected to the support block 401, the outer wall of the support block 401 is evenly distributed with crushing blocks 402, the upper end surface of the upper vacuum drying shell 3 is provided with a feed port 7 for loading the solid alkyl sulfonic acid catalyst, and the lower end surface of the lower vacuum drying shell 1 is provided with a discharge port 701 for discharging the solid alkyl sulfonic acid catalyst.

[0027] In this embodiment, a driving shaft 201 is configured to rotate to a certain extent through a motor, driving a stirring rod 202 to stir inside the drying device, thereby stirring the solid alkyl sulfonic acid catalyst entering through the feed port 7, so that the solid alkyl sulfonic acid catalyst is evenly distributed inside the drying device, ensuring that all particles can contact the drying heat source, thereby accelerating the drying process, improving the drying efficiency, and helping to form convection and circulation between the catalyst particles, promoting heat exchange, and the overall operation is simple and convenient.

[0028] In a preferred embodiment, a driving gear 6 is fixedly connected to the side of the driving shaft 201 close to the support seat 2, and a transmission gear 601 is fixedly connected to the outer wall of the driving rod 4 close to the support seat 2, and the transmission gear 601 is arranged in four groups, and the four groups of transmission gears 601 are meshingly connected with the driving gear 6. When the driving shaft 201 is rotated, the driving gear 6 fixedly connected to the outer wall is driven to rotate, and then the driving rod 4 is rotated through the meshing connection between the transmission gear 601 and the driving gear 6, thereby driving the driving rod 4 to rotate, and rotating the support block 401 and the crushing block 402 on the driving rod 4.

[0029] In a preferred embodiment, the elastic component includes a cavity groove 9 opened inside the stirring rod 202, the bottom end of the cavity groove 9 is connected to a spring 901, the other end of the spring 901 is connected to a slider 902, the top end of the slider 902 is connected to a connecting shaft 903, and an extrusion shaft 904 is located on the outer surface of the connecting shaft 903 and is rotatably connected. When the stirring rod 202 is rotating, the top end of the stirring rod 202 is connected to the crushing block 402 connected to the upper end of the support block 401 on the outer wall of the driving rod 4 through the extrusion shaft 904 set on the connecting shaft 903. The crushing block 402 squeezes and crushes the catalyst in contact with the extrusion shaft 904, and the extrusion shaft 904 is connected to the outer wall of the driving rod 4. The slider 902 connected to the lower end of the pressing shaft 904 slides and compresses in the cavity groove 9 inside the stirring rod 202 through the spring 901, and the catalyst is broken by the contact between the crushing block 402 and the extrusion shaft 904 to prevent the catalyst from agglomerating or agglomerating due to reduced humidity, thereby ensuring the loose state of the catalyst, thereby more effectively drying, making the catalyst particles smaller and increasing the surface area, making it easier to contact the drying heat source, improving the heat exchange efficiency, helping the catalyst to be evenly heated inside the drying equipment, further enhancing the stirring effect, making the catalyst more evenly distributed and mixed inside the drying equipment, and improving the drying efficiency and effect.

[0030] In a preferred embodiment, the inner ring of the spring 901 is provided with a telescopic sleeve 5, and the upper end of the telescopic sleeve 5 is fixedly connected to the slider 902. When the spring 901 is set to compress the slider 902 inside the cavity groove 9, the stability of the spring 901 during the compression work is ensured by the contraction of the telescopic sleeve 5.

[0031] In a preferred embodiment, a first mounting plate 8 is provided at the edge of the upper vacuum drying shell 3, and four groups of threaded bolts 803 are evenly arranged inside the first mounting plate 8. A second mounting plate 801 is fixedly connected to the edge of the upper end surface of the lower vacuum drying shell 1. The drying equipment is arranged, and the design of the first mounting plate 8 and the second mounting plate 801, in conjunction with the threaded bolts 803, enables the upper vacuum drying shell 3 and the lower vacuum drying shell 1 to be easily and quickly assembled and disassembled, thereby improving the maintainability of the equipment and facilitating cleaning, repair or replacement of parts of the equipment when necessary.

[0032] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0033] During operation, the drive shaft 201 is set to rotate to a certain extent through the motor, driving the stirring rod 202 to stir inside the drying device, thereby stirring the solid alkyl sulfonic acid catalyst entering through the feed port 7, so that the solid alkyl sulfonic acid catalyst is evenly distributed inside the drying device. When the set drive shaft 201 rotates, it drives the driving gear 6 fixedly connected to the outer wall to rotate, and then the driving rod 4 is rotated by the meshing connection between the transmission gear 601 and the driving gear 6, thereby driving the driving rod 4 to rotate, and rotating the support block 401 and the crushing block 402 on the driving rod 4;

[0034] When the stirring rod 202 is rotating, the top end of the stirring rod 202 contacts and collides with the crushing block 402 connected to the upper end of the support block 401 on the outer wall of the driving rod 4 through the extrusion shaft 904 set by the connecting shaft 903, and the crushing block 402 squeezes and crushes the catalyst in contact with the extrusion shaft 904, and the slider 902 connected to the lower end of the extrusion shaft 904 slides and compresses in the cavity groove 9 inside the stirring rod 202 through the spring 901, and the catalyst is crushed by the contact between the crushing block 402 and the extrusion shaft 904. When the driving rod 4 drives the crushing block 402 to rotate and the extrusion shaft 904 on the stirring rod 202 rotates at the same time, contact and extrusion work is performed to achieve crushing, further enhancing the stirring effect, making the catalyst more evenly distributed and mixed inside the drying equipment, and improving the drying efficiency and effect.

[0035] 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.

[0036] Although 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 vacuum drying device for a solid alkyl sulfonic acid catalyst, comprising a lower vacuum drying housing (1), characterized in that: The left end of the lower vacuum drying shell (1) is connected to a support seat (2), the upper end surface of the lower vacuum drying shell (1) is connected to an upper vacuum drying shell (3), and a separation mechanism for drying the solid alkyl sulfonic acid catalyst is arranged inside the lower vacuum drying shell (1), the separation mechanism comprising: A stirring assembly, comprising a driving shaft (201) connected to the inside of a support seat (2), stirring rods (202) evenly distributed on the outer wall of the driving shaft (201), and an extrusion shaft (904) connected to the inside of the stirring rod (202) via an elastic assembly; The crushing assembly comprises four groups of driving rods (4) connected at the edge of a supporting seat (2), the outer walls of the driving rods (4) are connected to supporting blocks (401), and the outer walls of the supporting blocks (401) are evenly distributed with crushing blocks (402).

2. A solid alkyl sulfonic acid catalyst vacuum drying equipment according to claim 1, characterized in that: The driving shaft (201) is fixedly connected to a driving gear (6) on one side close to the support seat (2), and the outer wall of the driving rod (4) on one side close to the support seat (2) is fixedly connected to a transmission gear (601), and the transmission gears (601) are arranged in four groups, and the four groups of transmission gears (601) are meshingly connected with the driving gear (6).

3. A solid alkyl sulfonic acid catalyst vacuum drying equipment according to claim 1, characterized in that: The elastic component comprises a cavity groove (9) opened inside the stirring rod (202), the bottom end of the cavity groove (9) is connected to a spring (901), the other end of the spring (901) is connected to a slider (902), the top end of the slider (902) is connected to a connecting shaft (903), and the extrusion shaft (904) is located on the outer surface of the connecting shaft (903) and is rotatably connected.

4. A solid alkyl sulfonic acid catalyst vacuum drying equipment according to claim 3, characterized in that: The inner ring of the spring (901) is provided with a telescopic sleeve rod (5), and the upper end of the telescopic sleeve rod (5) is fixedly connected to the slider (902).

5. A solid alkyl sulfonic acid catalyst vacuum drying equipment according to claim 1, characterized in that: The upper end surface of the upper vacuum drying shell (3) is provided with a feed port (7) for feeding the solid alkyl sulfonic acid catalyst, and the lower end surface of the lower vacuum drying shell (1) is provided with a discharge port (701) for discharging the solid alkyl sulfonic acid catalyst.

6. A solid alkyl sulfonic acid catalyst vacuum drying equipment according to claim 1, characterized in that: A first mounting plate (8) is arranged at the edge of the upper vacuum drying shell (3), four groups of threaded bolts (803) are evenly arranged inside the first mounting plate (8), and a second mounting plate (801) is fixedly connected to the edge of the upper end surface of the lower vacuum drying shell (1).

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