Catalyst impregnation apparatus and method

Abstract

The present invention relates to the technical field of catalyst preparation, and in particular to catalyst impregnation equipment and methods. The present invention provides catalyst impregnation equipment, a support assembly, wherein the support assembly includes a bottom plate; and an impregnation container assembly, wherein the impregnation container assembly includes an impregnation tank for loading a catalyst carrier and an impregnation liquid. After the impregnation is completed, the present invention rotates the impregnation tank so that the gear ring engages with the reciprocating thread groove provided on the outer wall of the lifting cylinder to drive the lifting cylinder to lift and lower the outer wall of the cylinder, squeezing the outside air into the impregnation tank, pushing the circular tray to slide downward on the inner wall of the impregnation tank, squeezing the impregnated catalyst carrier and the remaining solution. When the catalyst carrier and the remaining solution are squeezed, the remaining solution will be filtered through the filter cotton, and then flow out to the outside through the circular hole and the outlet, effectively separating the excess catalyst solution after impregnation from the catalyst carrier.

Description

Technical Field

[0001] The invention relates to the technical field of catalyst preparation, and in particular to catalyst impregnation equipment and method. Background Art

[0002] Catalyst impregnation is a common catalyst preparation method, which is widely used in the preparation of metal catalysts, acid-base catalysts and other types of catalysts. The impregnation method is to contact the catalyst carrier with the catalytic components in the solution so that the catalytic components are adsorbed by the carrier surface, and finally form a catalyst with catalytic activity.

[0003] During the catalyst impregnation process, the catalyst carrier will adsorb metal ions or metal precursors in the solution. However, since the carrier surface has a certain adsorption capacity, the solution exceeding this capacity will form a residual solution. In addition, during the impregnation process, if the amount of solution used is too large, the surface area of ​​the carrier cannot completely adsorb all the solution, resulting in residual solution. The prior art, such as the invention patent with publication number CN114838566B, discloses a drying device for producing catalysts by impregnation. There is no measure for treating the residual solution after impregnation. After impregnation, the carrier usually undergoes a drying step, and the water and solvent will be evaporated. If the amount of solution involved is too large, after drying, the residual water or solvent may cause the metal particles to merge and lose the high specific surface area, thereby reducing the activity of the catalyst and affecting the performance of the catalyst. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a catalyst impregnation device and method, which can effectively solve the problem in the prior art that the excess impregnation solution is not processed during the impregnation.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The present invention provides a catalyst impregnation device, comprising:

[0007] A support assembly, the support assembly comprising a base plate;

[0008] An impregnation container assembly, the impregnation container assembly comprising an impregnation tank for loading a catalyst carrier and an impregnation liquid;

[0009] A stirring drive assembly, the stirring drive assembly comprises two cylinders connected to the impregnation tank, a lifting cylinder is airtightly and slidably mounted on the outer wall of the cylinder, a partition is fixedly mounted on the upper end of the cylinder, a first one-way valve is embedded on the lower end surface of the partition, and a second one-way valve is fixedly mounted on the lower end surface of the lifting cylinder, and the lifting cylinder reciprocates relative to the outer wall of the cylinder in the process of being driven to rotate so as to inject gas into the impregnation tank;

[0010] A circular tray is airtightly and slidably mounted at the lower position of the inner wall of the impregnation tank, a shaft sleeve is provided at the axis center of the circular tray, and the shaft sleeve is limited and driven, and a plurality of stirring teeth are fixedly mounted in a circular array on the outer circumference of the shaft sleeve;

[0011] The outer wall of the impregnation tank is connected with a gas storage device, and a first solenoid valve is arranged at the connection between the gas storage device and the impregnation tank.

[0012] Preferably, two L-shaped brackets are fixedly installed on the upper end surface of the base plate, a connecting block is fixedly installed on the other end of the bracket, and a rotating support shaft is symmetrically rotatably installed on one side of the two connecting blocks, one end of the rotating support shaft is fixedly connected to the immersion tank, and a first rotating drive member is fixedly installed on one side of one of the connecting blocks, and the output end of the first rotating drive member passes through the connecting block at the corresponding position and is fixedly connected to the rotating support shaft.

[0013] A plurality of heating plates are fixedly embedded in a circular array on the outer wall of the immersion tank, and the heating plates are electrically connected to an external power supply. Two slide rails are symmetrically installed on the outer wall of the immersion tank, and magnets are slidably installed in the two slide rails. An iron ring is slidably installed on the inner wall of the immersion tank.

[0014] A U-shaped frame is fixedly installed on the lower end surface of the immersion tank, and a second rotary driving member is fixedly installed on the lower end surface of the U-shaped frame. The output end of the second rotary driving member passes through the U-shaped frame and is fixedly connected to a main shaft. The upper end of the main shaft passes through the immersion tank and extends into the interior thereof. The outer wall of the main shaft is symmetrically provided with a second sliding groove at an upper position, and the second sliding groove is airtightly slidably connected to the shaft sleeve.

[0015] The outer wall of the lifting cylinder is provided with a reciprocating thread groove, the outer side of the lifting cylinder is provided with a gear ring, and the gear ring is rotatably connected to the immersion tank, the inner surface of the gear ring is connected with a ball rolling at a fixed point, and the ball is limited to roll in the reciprocating thread groove.

[0016] The outer wall of the main shaft is symmetrically provided with two first sliding grooves at the lower position, a toothed disc is slidably installed in the first sliding groove, and the toothed disc is engaged with or separated from the gear ring, and the cylinder is connected with the impregnation tank.

[0017] The gas storage device consists of a pipe section and an air bag fixedly connected to one end of the pipe section, the pipe section is connected to the impregnation tank, the inner wall of the pipe section is fixedly connected to the first solenoid valve, the first solenoid valve is installed in the pipe section, one end of the air bag is connected to an output pipe, a third solenoid valve is fixedly installed in the output pipe, and the third solenoid valve is electrically connected to the first solenoid valve through a controller.

[0018] The cam is provided with two mounting seats symmetrically mounted on the upper end face of the immersion tank, and a rotating clamping rod is rotatably mounted on both sides of the mounting seat; two clamping heads are symmetrically mounted on the outer wall of the immersion tank; an inner groove is provided in the cover plate, and an air outlet pipe is fixedly mounted on the lower end face of the cover plate at a position corresponding to the inner groove; a second solenoid valve is fixedly mounted on the inner wall of the air outlet pipe, and the second solenoid valve is electrically connected to a controller; a disc is fixedly mounted on the outer wall of the air outlet pipe, and a filter cotton is slidably mounted on the outer wall of the air outlet pipe and below the disc; a square sliding barrel is symmetrically mounted on the outer wall of the immersion tank, a sliding rod is slidably mounted in the square sliding barrel, and the sliding rod is fixedly connected to the cover plate.

[0019] Two vertical plates are symmetrically installed on the upper end surface of the cover plate, and a narrow neck tube is fixedly installed inside the vertical plate. The narrow neck tube comprises a narrow section and a wide section connected to both ends of the narrow section, and the inner diameter of the narrow neck tube gradually decreases from the wide section toward the narrow section. A connecting pipe is fixedly installed on the upper end surface of the cover plate at a position corresponding to the inner groove, and the connecting pipe is connected to the narrow section of the narrow neck tube. A joint is fixedly installed at one end of the narrow neck tube, and the joint is slidably connected to the output pipe.

[0020] A method for using a catalyst impregnation device comprises the following steps:

[0021] S1, adding the catalyst carrier evenly into the impregnation tank, and then pouring the impregnation solution into the impregnation tank to mix with the catalyst carrier;

[0022] S2, driving the circular tray to intermittently and uniformly stir the catalyst support and the impregnation solution so that the surface of the catalyst support is in uniform contact with the impregnation solution;

[0023] S3, after the impregnation is completed, the impregnation tank is driven to rotate 180 degrees downward, and the gear ring is driven to rotate to drive the lifting cylinder to slide back and forth on the outer wall of the cylinder, so that the air pressure in the cylinder changes periodically. During the process of increasing the air pressure in the cylinder, the air pressure of the impregnation tank pushes the circular tray to slide in the impregnation tank to squeeze the finished catalyst after impregnation, and discharge the remaining solution after impregnation;

[0024] S4, after the remaining solution is discharged, the impregnation tank is driven to rotate 180 degrees downward to restore the original state again, and the remaining solution after the impregnation of the catalyst carrier and the impregnation solution is removed.

[0025] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0026] First, after the impregnation is completed, the impregnation tank is rotated so that the gear ring will engage with the reciprocating thread groove provided on the outer wall of the lifting cylinder to drive the lifting cylinder to lift and lower back and forth on the outer wall of the cylinder, squeezing the outside air into the impregnation tank, pushing the circular tray to slide downward on the inner wall of the impregnation tank, squeezing the impregnated catalyst carrier and the remaining solution. When the catalyst carrier and the remaining solution are squeezed, the remaining solution will be filtered through the filter cotton, and then flow out to the outside through the circular hole and the outlet, effectively separating the excess catalyst solution after impregnation from the catalyst carrier.

[0027] Secondly, by discharging the outside air squeezed into the impregnation tank into the airbag to expand it, after drying the catalyst carrier, the air in the airbag is transported to the narrow-necked tube through the output pipe. When flowing through the narrow section of the narrow-necked tube, the air flow rate will increase and the pressure will decrease, thereby generating an attraction effect, driving the water vapor in the impregnation tank through the air outlet pipe, the inner groove and the connecting pipe into the narrow section of the narrow-necked tube, and spraying outward through the wide section of the narrow-necked tube to clean up the remaining water vapor remaining in the impregnation tank after drying, so as to avoid the reaction of the residual water vapor with the active ingredients on the catalyst carrier, resulting in hydrolysis of the active metal or other functional components or other adverse chemical reactions.

[0028] Third, during the process of drying the catalyst carrier, the impregnation tank is driven to rotate to allow the magnet to slide in the slide rail. The iron ring attracted by the magnet slides on the inner wall of the impregnation tank, and the catalyst carrier attached to the inner wall of the impregnation tank is scratched off. This can effectively prevent the catalyst carrier from adhering to the inner wall of the impregnation tank during the drying process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0031] Figure 2 It is a bottom view structural schematic diagram of the present invention;

[0032] Figure 3 It is a cross-sectional structural schematic diagram of the impregnation tank of the present invention;

[0033] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0034] Figure 5It is a schematic cross-sectional structural diagram of the stirring drive assembly of the present invention;

[0035] Figure 6 for Figure 5 The enlarged structural diagram at B in the middle;

[0036] Figure 7 It is a schematic cross-sectional structural diagram of the cylinder of the present invention;

[0037] Figure 8 It is a schematic diagram of the structure of the exhaust liquid component of the present invention;

[0038] Fig. 9 It is a schematic cross-sectional structural diagram of the exhaust liquid component of the present invention.

[0039] Reference numerals: 1. support assembly; 101. bottom plate; 102. bracket; 103. connection block; 104. rotation support shaft; 105. first rotary drive member; 2. impregnation container assembly; 201. impregnation tank; 202. heating plate; 203. slide rail; 204. magnet; 205. iron ring; 3. stirring drive assembly; 301. U-shaped frame; 302. second rotary drive member; 303. main shaft; 304. round tray; 305. stirring teeth; 306. gear ring; 307. cylinder; 308. lifting cylinder; 309. partition; 310. first one-way valve; 311, second one-way valve; 312, first slide groove; 313, toothed disc; 314, second slide groove; 315, gas storage device; 316, first solenoid valve; 317, output pipe; 4, exhaust liquid assembly; 401, cover plate; 402, clamp head; 403, mounting seat; 404, rotating clamp rod; 405, square slide barrel; 406, slide rod; 407, air outlet pipe; 408, second solenoid valve; 409, disc; 410, round hole; 411, filter cotton; 412, connecting pipe; 413, vertical plate; 414, narrow neck tube; 415, joint; 416, outlet. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. 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.

[0041] The present invention will be further described below in conjunction with the embodiments.

[0042] Example: Refer to Figures 1 to 9 , a catalyst impregnation apparatus and method, comprising:

[0043] Support assembly 1, support assembly 1 includes a base plate 101;

[0044] An impregnation container assembly 2, the impregnation container assembly 2 includes an impregnation tank 201 for loading a catalyst carrier and an impregnation liquid;

[0045] The stirring drive assembly 3 includes two cylinders 307 connected to the immersion tank 201. The outer wall of the cylinder 307 is airtightly slidably mounted with a lifting cylinder 308. A partition 309 is fixedly mounted on the upper end of the cylinder 307. A first non-return valve 310 is embedded on the lower end surface of the partition 309. A second non-return valve 311 is fixedly mounted on the lower end surface of the lifting cylinder 308. The lifting cylinder 308 reciprocates relative to the outer wall of the cylinder 307 during the process of being driven to rotate so as to inject gas into the immersion tank 201.

[0046] A circular tray 304 is airtightly and slidably mounted at the lower position of the inner wall of the impregnation tank 201. A shaft sleeve is provided at the axis center of the circular tray 304, and the shaft sleeve is limited and driven. A plurality of stirring teeth 305 are fixedly mounted in a circular array on the outer circumference of the shaft sleeve.

[0047] The outer wall of the impregnation tank 201 is connected to a gas storage device 315, and a first solenoid valve 316 is provided at the connection between the gas storage device 315 and the impregnation tank 201.

[0048] Reference Figure 1 to Figure 2 Two L-shaped brackets 102 are fixedly installed on the upper end surface of the bottom plate 101, and a connecting block 103 is fixedly installed on the other end of the bracket 102. A rotating support shaft 104 is symmetrically installed on the opposite side of the two connecting blocks 103. One end of the rotating support shaft 104 is fixedly connected to the impregnation tank 201. A first rotating drive member 105 is fixedly installed on one side of one of the connecting blocks 103. The output end of the first rotating drive member 105 passes through the connecting block 103 at the corresponding position and is fixedly connected to the rotating support shaft 104. The first rotating driving member 105 can adopt an existing stepping motor to rotate the member 180° at a single time. At the same time, a supporting device (such as an existing electric splint) is also provided for maintaining the immersion tank 201 in a 180° rotation position. The output end of the first rotating driving member 105 passes through the connecting block 103 and is fixedly connected to the rotating support shaft 104. The first rotating driving member 105 can drive the rotating support shaft 104 to drive the immersion tank 201 to rotate. In the initial process of mixing the catalyst carrier and the catalyst solution, the catalyst carrier and the catalyst solution can also be mixed evenly by driving the immersion tank 201 to rotate.

[0049] Reference Figure 3, a plurality of heating plates 202 are fixedly embedded in a circular array on the outer wall of the immersion tank 201, and the heating plates 202 are electrically connected to an external power supply. Two slide rails 203 are symmetrically installed on the outer wall of the immersion tank 201, and magnets 204 are slidably installed in the two slide rails 203, and an iron ring 205 is slidably installed on the inner wall of the immersion tank 201. When the immersion tank 201 is driven to rotate, the magnet 204 will slide in the slide rail 203, and the iron ring 205 will be driven to slide on the inner wall of the immersion tank 201 by magnetic force, and the iron ring 205 can be effectively prevented from hitting the internal equipment of the immersion tank 201 when sliding on the inner wall of the immersion tank 201 through the magnetic attraction effect between the magnet 204 and the iron ring 205. It should be noted that the immersion tank 201, the slide rail 203 and other structures associated therewith are all made of non-ferromagnetic materials, and other driving source equipment has a magnetic shielding function to prevent it from affecting the work.

[0050] Reference Figure 3 A U-shaped frame 301 is fixedly installed on the lower end surface of the immersion tank 201, and a second rotary driving member 302 is fixedly installed on the lower end surface of the U-shaped frame 301. The output end of the second rotary driving member 302 passes through the U-shaped frame 301 and is fixedly connected to the main shaft 303. The upper end of the main shaft 303 passes through the immersion tank 201 and extends into the inside thereof. The outer wall of the main shaft 303 is symmetrically provided with a second sliding groove 314 at an upper position. The second sliding groove 314 is airtightly slidably connected to the sleeve; the outer wall of the lifting cylinder 308 is provided with a reciprocating thread groove, and the lifting cylinder 308 is provided with a gear ring 306, and the gear ring 306 is connected to the shaft sleeve. The immersion tank 201 is rotatably connected, and a ball is connected to the inner surface of the gear ring 306 for rolling at a fixed point, and the ball is limited to roll in the reciprocating thread groove, that is, during the rotation of the gear ring 306, the position of the ball relative to the gear ring 306 is relatively unchanged, and it only rolls on a certain point on the inner surface of the gear ring 306, and the ball changes its position relative to the reciprocating thread groove as the gear ring 306 changes, thereby realizing the reciprocating lifting of the lifting cylinder 308. The circular tray 304 can carry the catalyst carrier and the catalyst solution at the inner bottom end of the immersion tank 201, and can be driven to extrude the catalyst carrier and the catalyst solution.

[0051] Reference Figures 5 and 6 Two first slide grooves 312 are symmetrically opened on the outer wall of the main shaft 303 at the lower position. A toothed disc 313 is slidably installed in the first slide groove 312, and the toothed disc 313 is engaged or separated with the gear ring 306, and the cylinder 307 is connected to the impregnation tank 201.

[0052] Reference Figure 3 to Figure 4The gas storage device 315 is composed of a pipe section and an air bag fixedly connected to one end of the pipe section. The pipe section is connected to the impregnation tank 201. The inner wall of the pipe section is fixedly connected to the first solenoid valve 316. The first solenoid valve 316 is installed in the pipe section. One end of the air bag is connected to an output pipe 317. A third solenoid valve is fixedly installed in the output pipe 317. The third solenoid valve and the first solenoid valve 316 are electrically connected to a controller.

[0053] Reference Figures 8 to 9 , also includes an exhaust liquid component 4, the exhaust liquid component 4 includes a cover plate 401 airtightly slidably installed on the upper end surface of the immersion tank 201, two mounting seats 403 are symmetrically installed on the upper end of the cover plate 401, and rotating clamping rods 404 are rotatably installed on both sides of the mounting seats 403, and two clamping heads 402 are symmetrically installed on the outer wall of the immersion tank 201, an inner groove is opened in the cover plate 401, and an air outlet pipe 407 is fixedly installed on the lower end surface of the cover plate 401 and at a position corresponding to the inner groove, and a second solenoid valve 408 is fixedly installed on the inner wall of the air outlet pipe 407, and the second solenoid valve 408 is electrically connected to the controller, a disc 409 is fixedly installed on the outer wall of the air outlet pipe 407, and a filter cotton 411 is slidably installed on the outer wall of the air outlet pipe 407 and below the disc 409, and a square sliding barrel 405 is symmetrically installed on the outer wall of the immersion tank 201, and a sliding rod 406 is slidably installed in the square sliding barrel 405, and the sliding rod 406 is fixedly connected to the cover plate 401. The first solenoid valve 316, the third solenoid valve and the second solenoid valve 408 used above are all existing devices, which are a type of device that drives an electromagnet through an electrical signal to open or close a fluid channel.

[0054] Reference Figures 8 to 9 Two vertical plates 413 are symmetrically mounted on the upper end surface of the cover plate 401. A narrow neck tube 414 is fixedly mounted inside the vertical plates 413. The narrow neck tube 414 has a narrow section and a wide section connected to both ends of the narrow section. The inner diameter of the narrow neck tube 414 gradually decreases from the wide section to the narrow section. A connecting pipe 412 is fixedly mounted on the upper end surface of the cover plate 401 at a position corresponding to the inner groove. The connecting pipe 412 is connected to the narrow section of the narrow neck tube 414. A joint 415 is fixedly mounted at one end of the narrow neck tube 414. The joint 415 is slidably connected to the output pipe 317. When there is airflow flowing in the narrow neck tube 414, when the airflow passes through the narrow section, according to the Bernoulli principle, the flow velocity will increase and the pressure will decrease. In the area with lower pressure (narrow section), the water vapor in the impregnation tank 201 will be sucked into the narrow neck tube 414 through the connecting pipe 412 due to the pressure difference and driven to be sprayed out.

[0055] The working principle of the present invention is as follows:

[0056] 1. Impregnation: Add the catalyst carrier and the impregnation solution into the impregnation tank 201 respectively. After the impregnation solution is added into the impregnation tank 201, the cover plate 401 is clamped to the upper end of the impregnation tank 201, and the rotating clamping rod 404 is rotated to clamp to the lower end of the clamping head 402, so as to fix the cover plate 401 to the upper end of the impregnation tank 201 and seal the impregnation tank 201. The heating plate 202 is fixed to the outer wall of the impregnation tank 201, and the heating plate 202 heats the catalyst carrier and the impregnation solution added into the impregnation tank 201. The second rotating driving member 302 is turned on to drive the main shaft 303 to rotate, and the main shaft 303 drives the circular tray 304 and the stirring teeth 305 to rotate, so as to stir the catalyst carrier and the catalyst solvent;

[0057] It should be noted that the ratio of different catalyst carriers to catalyst solvents, the heating temperature and duration, and the stirring time and duration can be set accordingly according to the prior art, and will not be described in detail here;

[0058] 2. Liquid discharge: After the immersion is completed, when the remaining solution is removed, the first rotary drive member 105 is opened to drive the rotating support shaft 104 to rotate. The rotating rotating support shaft 104 will drive the immersion tank 201 to rotate, and drive the immersion tank 201 to rotate 180°, so that the stirring drive component 3 is at the upper end of the immersion tank 201, and the exhaust liquid component 4 is rotated and switched to the lower end of the immersion tank 201. When the second rotary drive member 302 drives the main shaft 303 to rotate, the toothed disc 313 will slide downward in the first slide groove 312 due to its own gravity and engage with the toothed ring 306 (the stirring drive component 3 is not driven to rotate during immersion. When it is at the lower end of the immersion tank 201, the toothed disc 313 will be at the lowest end of the first slide groove 312 due to its own weight and will not engage with the toothed ring 306. Figure 6As shown in the figure, the gear ring 306 is driven to rotate. The rotating gear ring 306 cooperates with the reciprocating thread groove provided on the outer wall of the lifting cylinder 308 to drive the lifting cylinder 308 to lift and lower on the outer wall of the cylinder 307, so that the air pressure in the cylinder 307 increases or decreases periodically. When the cylinder 307 is driven to slide in the direction away from the impregnation tank 201, the air pressure in the cylinder 307 gradually decreases, and the outside air enters the cylinder 307 through the second one-way valve 311. When the cylinder 307 is driven to slide in the direction close to the impregnation tank 201, the air pressure in the cylinder 307 gradually increases, and the air entering the cylinder 307 flows into the impregnation tank 201 through the first one-way valve 310 and enters the impregnation tank 201. The air in the tank 201 will push the circular tray 304 to slide downward on the inner wall of the impregnation tank 201, squeezing the impregnated catalyst carrier and the remaining solution. When the catalyst carrier and the remaining solution are squeezed, the remaining solution will be filtered through the filter cotton 411, and then flow out to the outside through the circular hole 410 and the outlet 416. At this time, the remaining solution flowing out can be collected and recycled to avoid waste. In the process of external air being continuously squeezed into the impregnation tank 201 to push the circular tray 304 to slide and squeeze on the inner wall of the impregnation tank 201, the remaining solution will be completely squeezed out of the impregnation tank 201. The setting of the filter cotton 411 can filter the catalyst carrier during the process of squeezing out the remaining solution to avoid being squeezed out together;

[0059] 3. Drying: After impregnation, the catalyst carrier needs to be dried at an appropriate temperature to remove residual solvent. The above operation can only remove most of the residual solution. There may still be a trace amount of solution remaining on the surface and in the pores of the catalyst carrier. These residual solutions are not easy to be discharged by the above method.

[0060] After the remaining solution is removed, the immersion tank 201 is driven to rotate 180° to restore to its original position (the stirring drive component 3 is at the lower end of the immersion tank 201, and the exhaust liquid component 4 is at the upper end of the immersion tank 201); the current delivered to the first electromagnetic valve 316 is turned on by the controller, and the current flows through the electromagnetic coil to generate a magnetic field, attracting or pushing the valve core, and the circular tray 304 will slide down in the inner wall of the immersion tank 201 due to the weight of the catalyst carrier, squeezing the air between the immersion tank 201, and the squeezed air will flow into the airbag through the first electromagnetic valve 316 to expand the airbag, and at this time, the heating plate 202 is turned on to dry the immersion tank 201 and the catalyst carrier inside;

[0061] It should be noted that, in the process of drying the catalyst carrier, the surface of some catalyst carriers may have a certain degree of adhesion or hydrophilicity, which may cause them to partially adhere to the container wall during the liquid impregnation process, especially when the water evaporates during the drying process, the surface of the carrier will become more viscous, and by driving the impregnation tank 201 to rotate intermittently or after drying, the impregnation tank 201 will rotate during the rotation of the magnet 204 in the slide rail 203, and the iron ring 205 magnetically attracted by the magnet 204 will also be driven to slide on the inner wall of the impregnation tank 201, and will contact the catalyst carrier attached to the inner wall of the impregnation tank 201 during the sliding, scrape it off the inner wall of the impregnation tank 201, and prevent the catalyst carrier from adhering to the inner wall of the impregnation tank 201;

[0062] During the drying process, the internal air pressure of the impregnation tank 201 will increase, and the residual solution will be evaporated into water vapor and gaseous solute due to heating, and flow out through the filter cotton 411, the circular hole 410 and the outlet 416. After drying, the internal air pressure of the impregnation tank 201 will stop increasing, but some water vapor and gaseous solute will still remain in the impregnation tank 201. At this time, the controller opens the third solenoid valve and the second solenoid valve 408, and the air stored in the airbag will flow into the narrow neck tube 414 through the output pipe 317. When flowing through the narrow section set in the narrow neck tube 414, the air flow rate will increase and the pressure will The pressure is reduced, thereby generating an attraction effect, driving the water vapor and gaseous solutes in the impregnation tank 201 to enter the narrow section of the narrow neck tube 414 through the outlet pipe 407, the inner tank and the connecting pipe 412, and spray outward through the wide section of the narrow neck tube 414, so as to clean up the residual water vapor in the impregnation tank 201, and avoid the residual water vapor and gaseous solutes from reacting with the active components on the catalyst carrier (such as water vapor may induce hydrolysis reaction and change of active sites; gaseous solutes may induce adverse chemical reactions and form new compounds), resulting in hydrolysis of active metals or other functional components or other adverse chemical reactions;

[0063] After cleaning the residual water vapor in the immersion tank 201 during the drying process, the rotating clamp rod 404 is disengaged from the clamp head 402 by rotating, and then the output pipe 317 is unplugged from the joint 415, and the exhaust liquid assembly 4 is removed from the upper end of the immersion tank 201, and the dried catalyst carrier is poured out.

[0064] A catalyst impregnation method specifically comprises the following steps:

[0065] S1, adding the catalyst carrier evenly into the impregnation tank 201, and then pouring the impregnation solution into the impregnation tank 201 to mix with the catalyst carrier;

[0066] S2, driving the circular tray 304 to intermittently and uniformly stir the catalyst carrier and the impregnation solution so that the surface of the catalyst carrier is in uniform contact with the impregnation solution;

[0067] S3, after the impregnation is completed, the impregnation tank 201 is driven to rotate 180 degrees downward, and the gear ring 306 is driven to rotate to drive the lifting cylinder 308 to slide back and forth on the outer wall of the cylinder 307, so that the air pressure in the cylinder 307 changes periodically. During the process of increasing the air pressure in the cylinder 307, the air pressure of the impregnation tank 201 pushes the circular tray 304 to slide in the impregnation tank 201 to squeeze the finished catalyst product after impregnation, and discharge the remaining solution after impregnation;

[0068] S4, after the remaining solution is discharged, the impregnation tank 201 is driven again to rotate 180 degrees downward to restore the original state, and the remaining solution after the impregnation of the catalyst carrier and the impregnation solution is removed.

[0069] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. Catalyst impregnation equipment, characterized in that: include: A support assembly (1), the support assembly (1) comprising a base plate (101); An impregnation container assembly (2), the impregnation container assembly (2) comprising an impregnation tank (201) for loading a catalyst carrier and an impregnation liquid; A stirring drive assembly (3), the stirring drive assembly (3) comprising two cylinders (307) connected to the immersion tank (201), a lifting cylinder (308) being airtightly slidably mounted on the outer wall of the cylinder (307), a partition (309) being fixedly mounted on the upper end of the cylinder (307), a first one-way valve (310) being embedded on the lower end surface of the partition (309), and a second one-way valve (311) being fixedly mounted on the lower end surface of the lifting cylinder (308), and the lifting cylinder (308) sliding back and forth relative to the outer wall of the cylinder (307) during the process of being driven to rotate so as to inject gas into the immersion tank (201); A circular tray (304) is airtightly and slidably mounted at a lower position of the inner wall of the impregnation tank (201); a shaft sleeve is provided at the axis of the circular tray (304), and the shaft sleeve is driven in a limited position; a plurality of stirring teeth (305) are fixedly mounted in a circular array on the outer circumference of the shaft sleeve; The outer wall of the impregnation tank (201) is connected to a gas storage device (315), and a first solenoid valve (316) is provided at the connection between the gas storage device (315) and the impregnation tank (201); Two L-shaped brackets (102) are fixedly mounted on the upper end surface of the bottom plate (101); a connecting block (103) is fixedly mounted on the other end of the bracket (102); a rotating support shaft (104) is symmetrically rotatably mounted on opposite sides of the two connecting blocks (103); one end of the rotating support shaft (104) is fixedly connected to the impregnation tank (201); a first rotating driving member (105) is fixedly mounted on one side of one of the connecting blocks (103); an output end of the first rotating driving member (105) passes through the connecting block (103) at a corresponding position and is fixedly connected to the rotating support shaft (104); A U-shaped frame (301) is fixedly mounted on the lower end surface of the impregnation tank (201), a second rotary drive member (302) is fixedly mounted on the lower end surface of the U-shaped frame (301), and an output end of the second rotary drive member (302) passes through the U-shaped frame (301) and is fixedly connected to a main shaft (303); The lifting cylinder (308) is provided with a gear ring (306) outside; Two first slide grooves (312) are symmetrically provided on the outer wall of the main shaft (303) at a lower position, a toothed disc (313) is slidably installed in the first slide groove (312), and the toothed disc (313) is engaged with or separated from the toothed ring (306), and the cylinder (307) is connected to the impregnation tank (201).

2. The catalyst impregnation equipment according to claim 1, characterized in that A plurality of heating plates (202) are fixedly embedded in a circular array on the outer wall of the impregnation tank (201), and the heating plates (202) are electrically connected to an external power supply. Two slide rails (203) are symmetrically installed on the outer wall of the impregnation tank (201), and magnets (204) are slidably installed in the two slide rails (203). An iron ring (205) is slidably installed on the inner wall of the impregnation tank (201).

3. The catalyst impregnation equipment according to claim 1, characterized in that The upper end of the main shaft (303) passes through the impregnation tank (201) and extends into the interior thereof, and a second sliding groove (314) is symmetrically provided on the outer wall of the main shaft (303) at an upper position, and the second sliding groove (314) is airtightly slidably connected to the shaft sleeve; The outer wall of the lifting cylinder (308) is provided with a reciprocating thread groove, and the gear ring (306) is rotatably connected to the immersion tank (201). A ball is connected to the inner surface of the gear ring (306) in a fixed-point rolling manner, and the ball is limited to roll in the reciprocating thread groove.

4. The catalyst impregnation equipment according to claim 1, characterized in that The gas storage device (315) is composed of a pipe section and an air bag fixedly connected to one end of the pipe section, the pipe section is connected to the impregnation tank (201), the inner wall of the pipe section is fixedly connected to the first solenoid valve (316), the first solenoid valve (316) is installed in the pipe section, one end of the air bag is connected to an output pipe (317), a third solenoid valve is fixedly installed in the output pipe (317), and the third solenoid valve and the first solenoid valve (316) are electrically connected to a controller.

5. The catalyst impregnation equipment according to claim 1, characterized in that: The device further comprises a gas exhaust liquid component (4), the gas exhaust liquid component (4) comprising a cover plate (401) airtightly slidably mounted on the upper end surface of the immersion tank (201), two mounting seats (403) being symmetrically mounted on the upper end of the cover plate (401), rotating clamping rods (404) being rotatably mounted on both sides of the mounting seats (403), two clamping heads (402) being symmetrically mounted on the outer wall of the immersion tank (201), an inner groove being formed in the cover plate (401), and an air outlet pipe (407) being fixedly mounted on the lower end surface of the cover plate (401) at a position corresponding to the inner groove, A second solenoid valve (408) is fixedly mounted on the inner wall of the air outlet pipe (407), and the second solenoid valve (408) is electrically connected to a controller. A disc (409) is fixedly mounted on the outer wall of the air outlet pipe (407), and a filter cotton (411) is slidably mounted on the outer wall of the air outlet pipe (407) and below the disc (409). A square sliding barrel (405) is symmetrically mounted on the outer wall of the impregnation tank (201), and a sliding rod (406) is slidably mounted inside the square sliding barrel (405), and the sliding rod (406) is fixedly connected to the cover plate (401).

6. The catalyst impregnation device according to claim 5, characterized in that Two vertical plates (413) are symmetrically mounted on the upper end surface of the cover plate (401); a narrow neck tube (414) is fixedly mounted inside the vertical plate (413); the narrow neck tube (414) comprises a narrow section and a wide section connected to both ends of the narrow section; and the inner diameter of the narrow neck tube (414) gradually decreases from the wide section toward the narrow section; a connecting tube (412) is fixedly mounted on the upper end surface of the cover plate (401) at a position corresponding to the inner groove; the connecting tube (412) is connected to the narrow section of the narrow neck tube (414); a joint (415) is fixedly mounted on one end of the narrow neck tube (414); the joint (415) is slidably connected to the output tube (317).

7. A catalyst impregnation method, characterized in that: The catalyst impregnation device according to any one of claims 1 to 6 is used, specifically The following steps are involved: S1, adding the catalyst carrier evenly into the impregnation tank (201), and then pouring the impregnation solution into the impregnation tank (201) to mix with the catalyst carrier; S2, driving the circular tray (304) to intermittently and uniformly stir the catalyst carrier and the impregnation solution so that the surface of the catalyst carrier is in uniform contact with the impregnation solution; S3, after the impregnation is completed, the impregnation tank (201) is driven to rotate 180 degrees downward, and the gear ring (306) is driven to rotate to drive the lifting cylinder (308) to slide back and forth on the outer wall of the cylinder (307), so that the air pressure in the cylinder (307) changes periodically. During the process of increasing the air pressure in the cylinder (307), the air pressure in the impregnation tank (201) pushes the circular tray (304) to slide in the impregnation tank (201) to squeeze the finished catalyst product after impregnation, and discharge the remaining solution after impregnation; S4, after the remaining solution is discharged, the impregnation tank (201) is driven again to rotate 180 degrees downward to restore the original state, and the remaining solution after the impregnation of the catalyst carrier and the impregnation solution is removed.

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