A microwave impregnation apparatus suitable for catalyst production

Abstract

This utility model provides a microwave impregnation device suitable for catalyst production, characterized by comprising a tank A, a tank B, a stirring tank, and an impregnation chamber. Tank A is connected to the stirring tank via an outlet pipe A, and tank B is connected to the stirring tank via an outlet pipe B. The stirring tank is connected to the impregnation chamber via an impregnation tube assembly. A microwave vibrator is installed at the bottom of the impregnation chamber. By installing a microwave vibrator at the bottom of the impregnation chamber, the catalyst load inserted in the support can be vibrated by microwaves during the impregnation process, allowing the active impregnation liquid to be quickly and uniformly adsorbed onto the catalyst load. This combines the impregnation process with microwave enhancement, accelerating the reaction process, improving impregnation uniformity, and providing effective assurance for the subsequent catalyst calcination effect.

Description

Technical Field

[0001] This utility model relates to the field of catalyst production technology, and in particular to a microwave impregnation device suitable for catalyst production. Background Technology

[0002] A catalyst impregnator is a key piece of equipment used to prepare supported catalysts. Its working principle is as follows: an impregnation solution containing an active component (such as a metal salt solution) is brought into contact with a porous support. Capillary pressure and adsorption are used to adsorb or store the active component solution within the pores of the support, thus achieving loading of the active component onto the support. After impregnation, excess impregnation solution is removed, and the catalyst is then dried, calcined, and activated to obtain the final product.

[0003] Currently, the catalyst impregnator's impregnation chamber cannot accommodate catalyst loads of different sizes during impregnation, and the impregnation process is not assisted by other devices. The catalyst loads are stacked on top of each other, resulting in low impregnation efficiency and uneven impregnation. Utility Model Content

[0004] In view of the above technical problems, this utility model provides a microwave impregnation device suitable for catalyst production that can change size and improve impregnation efficiency.

[0005] This utility model provides a microwave impregnation device suitable for catalyst production, characterized in that it includes a tank A, a tank B, a stirring tank, and an impregnation chamber. The tank A is connected to the stirring tank through a liquid outlet pipe A, the tank B is connected to the stirring tank through a liquid outlet pipe B, the stirring tank is connected to the impregnation chamber through an impregnation pipe assembly, and a microwave vibrator is installed at the bottom of the impregnation chamber.

[0006] The impregnation chamber contains a support frame, into which a catalyst carrier is inserted. The support frame is composed of interlocking horizontal and vertical insert plates, each of which has multiple permeation holes.

[0007] The top of the tank A is provided with a liquid injection pipe A, the middle of the liquid injection pipe A is equipped with a regulating valve A, the middle of the liquid outlet pipe A is equipped with a liquid pump A, and deionized water is injected into the tank A.

[0008] A liquid injection pipe B is installed at the top of the tank body B, a regulating valve B is installed in the middle of the liquid injection pipe B, a liquid pump B is installed in the middle of the liquid outlet pipe B, and a rare earth element solution is injected into the tank body B.

[0009] The impregnation tube assembly includes a main pipe, a liquid pump C, a first branch pipe, and a second branch pipe. One end of the main pipe is connected to the bottom of the mixing tank, and the other end of the main pipe is provided with two branches, namely the first branch pipe and the second branch pipe. The first branch pipe and the second branch pipe are arranged side by side and are both connected to the side wall of the impregnation tank. A regulating valve C is installed on the first branch pipe, and a regulating valve D is installed on the second branch pipe. The liquid pump C is located in the middle of the main pipe.

[0010] One end of the return pipe is connected to the bottom side of the impregnation tank, and the other end of the return pipe is connected to the top of the mixing tank. A cyclone pump is installed in the middle of the return pipe near the side of the impregnation tank. A circulation pipe is connected to the side wall of the return pipe near the outlet of the cyclone pump. The circulation pipe is connected back to the impregnation tank. Control valves are installed on both the return pipe and the circulation pipe.

[0011] An installation chamber is opened inside the lower side of the immersion chamber. A microwave vibrator is installed on the top wall of the installation chamber. A protective window is detachably connected to the lower part of the immersion chamber by bolts. A partition is inserted into the interior of the immersion chamber.

[0012] The tanks A, B, and the lower part of the mixing tank are all fixedly connected to brackets.

[0013] A stirring motor is fixedly installed at the bottom of the mixing tank. The output end of the stirring motor passes through the bottom of the mixing tank and is connected to the agitator through a coupling.

[0014] The beneficial effects of this utility model are as follows: This utility model is a microwave impregnation device suitable for catalyst production. By adding a microwave vibrator to the bottom of the impregnation chamber and placing a support frame inside the impregnation chamber, the support frame is composed of interlocking plates. Different numbers of interlocking plates can be selected according to the size of the catalyst load used, improving applicability. Simultaneously, multiple permeation holes are provided on the support frame, ensuring that the catalyst load is not stacked individually during the impregnation process. Through microwave vibration, the active impregnation liquid is quickly and uniformly adsorbed onto the catalyst load, combining the impregnation process with microwave enhancement, accelerating the reaction process, improving impregnation uniformity, and providing effective assurance for the subsequent catalyst calcination effect. By inserting partitions into the impregnation chamber, when impregnating small catalyst loads, they can be separated by partitions. Smaller interlocking plates are selected to form a support frame, and the catalyst load is inserted into the through holes formed between the interlocking plates and placed on one side of the impregnation chamber. Figure 4 As shown, when impregnating large catalyst loads, the partition is removed, impregnation liquid is added, and then the impregnation work is carried out. Larger-sized insert plates are selected for splicing support, so that the impregnation tank can be adapted to catalyst loads of different sizes, used as needed, and saving impregnation liquid raw materials. Attached Figure Description

[0015] Figure 1This is a top view of the structure of the present invention without using partitions;

[0016] Figure 2 This is a schematic diagram of the structure of the bracket of this utility model;

[0017] Figure 3 This is a side view of the structure of this utility model;

[0018] Figure 4 This is a structural diagram of the present invention when using a partition;

[0019] Figure 5 This is a partial cross-sectional view of the bottom of the mixing tank of this utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the catalytic support of this utility model.

[0021] Reference numerals: 1-Tank A; 11-Injection pipe A; 12-Regulating valve A; 13-Outlet pipe A; 14-Liquid pump A; 2-Tank B; 21-Injection pipe B; 22-Regulating valve B; 23-Liquid pump B; 24-Outlet pipe B; 3-Agitator; 31-Liquid pump C; 32-Main pipe; 33-First branch pipe; 34-Second branch pipe; 35-Regulating valve C; 36-Regulating valve D; 4-Immersion tank; 41-Swirl pump; 42-Return pipe; 43-Baffle; 44-Circulation pipe; 5-Microwave vibrator; 51-Protective window; 6-Support; 7-Agitator motor; 8-Agitator; 9-Support; 10-Catalytic load. Detailed Implementation Example 1

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings.

[0023] like Figure 1 As shown, this utility model provides a microwave impregnation device suitable for catalyst production, characterized by including a tank A1, a tank B2, a stirring tank 3, and an impregnation chamber 4. The tank A1 is connected to the stirring tank 3 through a liquid outlet pipe A13, the tank B2 is connected to the stirring tank 3 through a liquid outlet pipe B24, the stirring tank 3 is connected to the impregnation chamber 4 through an impregnation tube assembly, and a microwave vibrator 5 is provided at the bottom of the impregnation chamber 4.

[0024] like Figure 2 As shown, a support 9 is placed inside the impregnation chamber 4, and a catalyst carrier 10 is inserted into the support 9. The support 9 is composed of interlocking horizontal and vertical insert plates, and each insert plate is provided with multiple permeation holes.

[0025] A liquid injection pipe A11 is installed at the top of tank A1, a regulating valve A12 is installed in the middle of the liquid injection pipe A11, and a liquid pump A14 is installed in the middle of the liquid outlet pipe A13. Deionized water is injected into the inside of tank A1.

[0026] A liquid injection pipe B21 is installed at the top of tank B2, a regulating valve B22 is installed in the middle of the liquid injection pipe B21, and a liquid pump B23 is installed in the middle of the liquid outlet pipe B21. Rare earth element solution is injected into the inside of tank B2.

[0027] The impregnation pipe assembly includes a main pipe 32, a liquid pump C31, a first branch pipe 33, and a second branch pipe 34. One end of the main pipe 32 is connected to the bottom of the mixing tank 3, and the other end of the main pipe 32 is provided with two branches, namely the first branch pipe 33 and the second branch pipe 34. The first branch pipe 33 and the second branch pipe 34 are arranged side by side and are both connected to the side wall of the impregnation tank 4. A regulating valve C35 is installed on the first branch pipe 33, and a regulating valve D36 is installed on the second branch pipe 34. The liquid pump C31 is located in the middle of the main pipe 32.

[0028] One end of the return pipe 42 is connected to the bottom side of the impregnation tank 4, and the other end of the return pipe 42 is connected to the top of the mixing tank 3. A cyclone pump 41 is installed in the middle of the return pipe 42 near the side of the impregnation tank 4. A circulation pipe 44 is connected to the side wall of the return pipe 42 near the outlet of the cyclone pump 41. The circulation pipe 44 is connected back to the impregnation tank 4. Control valves are installed on both the return pipe 42 and the circulation pipe 44.

[0029] An installation chamber is opened inside the lower side of the immersion chamber 4. A microwave vibrator 5 is installed on the top wall of the installation chamber. A protective window 51 is detachably connected to the lower part of the immersion chamber 4 by bolts. A partition 43 is inserted into the interior of the immersion chamber 4.

[0030] Support brackets 6 are fixedly connected to the lower parts of tanks A1, B2, and mixing tank 3.

[0031] like Figure 5 As shown, a stirring motor 7 is fixedly installed at the bottom of the mixing tank 3. The output end of the stirring motor 7 passes through the bottom of the mixing tank 3 and is connected to the stirrer 8 through a coupling. Example 2

[0032] This invention is applicable to the use of small catalyst supports, such as: Figure 4 As shown, a partition plate 43 is inserted into the impregnation tank 4. The regulating valve C is closed, and liquid pumps A and B are started, allowing deionized water and rare earth element solutions to enter the mixing tank through their respective pipes. The stirring motor is started to drive the stirrer to stir the mixed solution until it is uniformly mixed to form the active component impregnation solution. Then, liquid pump C is started to inject the impregnation solution into the impregnation tank through the main pipe and the second branch pipe. When the impregnation solution reaches the appropriate position, the injection is stopped. The small support 9 (previously assembled using small insert plates) and the catalyst load 10 are placed together on one side of the impregnation tank. Figure 4 As shown, the microwave vibrator 5 is started to drive the impregnation liquid to vibrate, so that it impregnates evenly and improves the impregnation efficiency.

[0033] During the impregnation process, the cyclone pump 41 is started to pump the impregnation liquid in a cyclone. Part of the liquid is pumped into the impregnation tank 4 for circulation, and part of the liquid is pumped into the mixing tank 3 for circulation replenishment. Example 3

[0034] This invention is applicable to the use of large catalyst supports, such as: Figure 1 As shown, without inserting a partition plate inside the impregnation tank 4, the regulating valve C35 is opened, and liquid pumps A14 and B23 are started, allowing deionized water and rare earth element solution to enter the mixing tank 3 through their respective pipes. The stirring motor 7 is started, driving the stirrer 8 to stir the mixed solution until it is uniformly mixed to form the active component impregnation solution. Then, liquid pump C31 is started, allowing it to inject the impregnation solution into the impregnation tank 4 through the main pipe 32, the first branch pipe 33, and the second branch pipe 34. When the impregnation solution is injected to the appropriate position, the injection of the impregnation solution is stopped. The large support (connected by a large insert plate) along with the catalyst load is placed inside the impregnation tank 4, as shown. Figure 1 As shown, the microwave vibrator 5 is started to drive the impregnation liquid to vibrate, so that it impregnates evenly and improves the impregnation efficiency.

[0035] It is worth noting that the partitions are connected by plugs, but the plugs are deep and secure, and will not fall off due to microwave vibration. The size of the plugs can be chosen at will.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A microwave impregnation device suitable for catalyst production, characterized in that It includes tank A, tank B, a mixing tank, and an impregnation chamber. Tank A is connected to the mixing tank via a liquid outlet pipe A, tank B is connected to the mixing tank via a liquid outlet pipe B, the mixing tank is connected to the impregnation chamber via an impregnation pipe assembly, and a microwave vibrator is installed at the bottom of the impregnation chamber.

2. A microwave impregnation device suitable for catalyst production as claimed in claim 1, wherein The impregnation chamber contains a support frame, into which a catalyst carrier is inserted. The support frame is composed of interlocking horizontal and vertical insert plates, each of which has multiple permeation holes.

3. A microwave impregnation device suitable for catalyst production as claimed in claim 1, wherein The top of the tank A is provided with a liquid injection pipe A, the middle of the liquid injection pipe A is equipped with a regulating valve A, the middle of the liquid outlet pipe A is equipped with a liquid pump A, and deionized water is injected into the tank A.

4. A microwave infiltration apparatus suitable for catalyst production as claimed in claim 1, wherein A liquid injection pipe B is installed at the top of the tank body B, a regulating valve B is installed in the middle of the liquid injection pipe B, a liquid pump B is installed in the middle of the liquid outlet pipe B, and a rare earth element solution is injected into the tank body B.

5. A microwave infiltration apparatus suitable for catalyst production as claimed in claim 1, wherein The impregnation tube assembly includes a main pipe, a liquid pump C, a first branch pipe, and a second branch pipe. One end of the main pipe is connected to the bottom of the mixing tank, and the other end of the main pipe is provided with two branches, namely the first branch pipe and the second branch pipe. The first branch pipe and the second branch pipe are arranged side by side and are both connected to the side wall of the impregnation tank. A regulating valve C is installed on the first branch pipe, and a regulating valve D is installed on the second branch pipe. The liquid pump C is located in the middle of the main pipe.

6. A microwave infiltration apparatus suitable for catalyst production as claimed in claim 1, wherein One end of the return pipe is connected to the bottom side of the impregnation tank, and the other end of the return pipe is connected to the top of the mixing tank. A cyclone pump is installed in the middle of the return pipe near the side of the impregnation tank. A circulation pipe is connected to the side wall of the return pipe near the outlet of the cyclone pump. The circulation pipe is connected back to the impregnation tank. Control valves are installed on both the return pipe and the circulation pipe.

7. A microwave infiltration apparatus suitable for catalyst production as claimed in claim 1, wherein An installation chamber is opened inside the lower side of the immersion chamber. A microwave vibrator is installed on the top wall of the installation chamber. A protective window is detachably connected to the lower part of the immersion chamber by bolts. A partition is inserted into the interior of the immersion chamber.

8. A microwave infiltration apparatus suitable for catalyst production as claimed in claim 1, wherein The tanks A, B, and the lower part of the mixing tank are all fixedly connected to brackets.

9. A microwave impregnation apparatus suitable for catalyst production according to claim 1, characterized in that... A stirring motor is fixedly installed at the bottom of the mixing tank. The output end of the stirring motor passes through the bottom of the mixing tank and is connected to the agitator through a coupling.

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