An apparatus for non-vacuum impregnation of catalysts

Abstract

The utility model discloses a kind of equipment of non-vacuum impregnation catalyst, impregnation tank, impregnation tank is open upward, heating cavity is equipped with outside four quarters of impregnation tank, heating coil is equipped in heating cavity, lifting rod is equipped with inside both sides of impregnation tank, placing basket is equipped with in lifting rod top, grid-like partition is equipped in placing basket, stirring mechanism is equipped with in the middle of impregnation tank, stirring mechanism includes the stirring shaft of being set in the bottom of impregnation tank, stirring blade is equipped on stirring shaft, inlet, outlet and drain are equipped with in the bottom of impregnation tank, inlet and outlet are connected with liquid storage tank, inlet and liquid storage tank, outlet are connected with liquid storage tank by conveying pipeline connection, conveying pipeline is controlled by circulating pump.The utility model its simple structure, low in cost, can realize the uniform impregnation of catalyst carrier under non-vacuum environment, effectively promote catalyst activity and production efficiency, applicable to small and medium-sized catalyst production scene.

Description

Technical Field

[0001] This utility model belongs to the field of equipment for non-vacuum impregnation of catalysts, and more specifically, relates to an equipment for non-vacuum impregnation of catalysts. Background Technology

[0002] Catalysts are widely used in chemical, environmental protection, and energy fields. Their performance depends on the uniformity of the loading of active components on the support, and impregnation is a key process to achieve the loading of active components. Traditional catalyst impregnation often uses vacuum impregnation equipment, which can reduce the influence of bubbles, but requires complex components such as vacuum pumps and vacuum chambers. This not only results in high equipment purchase and maintenance costs, but also has problems such as cumbersome operation procedures, difficulty in vacuum control, and unsuitability for large-scale continuous production. While existing non-vacuum impregnation equipment simplifies the structure, it still has significant drawbacks: some equipment lacks precise temperature control mechanisms, leading to large temperature fluctuations in the impregnation solution and affecting the adsorption efficiency of active components; some equipment does not optimize the circulation of the impregnation solution and the contact method with the carrier, easily resulting in insufficient local impregnation of the carrier and uneven distribution of active components; moreover, most equipment has poor stirring and sealing performance and insufficient corrosion resistance, easily causing impregnation solution leakage or equipment corrosion, shortening service life, and failing to meet the requirements of industrial production for catalyst quality and production efficiency. Therefore, developing a non-vacuum impregnation device with a simple structure, low cost, and uniform and efficient impregnation is of great practical significance. Utility Model Content

[0003] In view of this, the technical problem to be solved by this utility model is to provide a non-vacuum impregnation device for catalysts, which solves the problems of temperature difference control, uneven impregnation, easy leakage and high cost, complicated operation and unsuitability for large-scale production of existing non-vacuum impregnation equipment.

[0004] To address the aforementioned technical problems, this utility model discloses a non-vacuum impregnation device for catalysts. The impregnation tank has an upward-facing opening. Heating chambers are located around the outer perimeter of the impregnation tank, and heating coils are installed within these chambers. Lifting rods are located on both sides of the inner side of the impregnation tank, with a placement basket at the top of each lifting rod. A grid-like partition plate is installed within the placement basket. A stirring mechanism is located in the center of the impregnation tank, comprising a stirring shaft at the bottom of the tank with stirring blades. An inlet, outlet, and drain are located at the bottom of the impregnation tank. The inlet and outlet are connected to a storage tank, and the inlet and outlet are connected to the storage tank via a conveying pipeline controlled by a circulating pump.

[0005] According to one embodiment of the present invention, a fixed bracket is provided at the bottom of the impregnation tank.

[0006] According to one embodiment of the present invention, the above-mentioned drain outlet is connected to the waste liquid tank and the switch is controlled by a solenoid valve.

[0007] According to one embodiment of the present invention, a temperature sensor is also provided in the heating cavity. The temperature sensor is electrically connected to an external controller, and the heating coil adjusts the heating power through the controller, so that the temperature of the impregnation liquid in the impregnation tank can be stably controlled within the range of 30-55℃.

[0008] According to one embodiment of the present invention, the above-mentioned lifting rod is an electric telescopic rod, and the drive motor of the electric telescopic rod is electrically connected to the controller.

[0009] According to one embodiment of the present invention, the surface of the stirring blade is coated with a polytetrafluoroethylene anti-corrosion coating.

[0010] Compared with the prior art, the present invention can achieve the following technical effects: 1) The heating chamber provides precise temperature control, the lifting rod allows for convenient lifting and lowering of the catalyst carrier, the stirring blades ensure uniform mixing of the impregnation solution, the mechanical seal prevents leakage, and the circulation system enables efficient reuse of the impregnation solution. Its simple structure and low cost enable uniform impregnation of the catalyst carrier in a non-vacuum environment, effectively improving catalyst activity and production efficiency, making it suitable for small and medium-sized catalyst production scenarios.

[0011] Of course, any product implementing this utility model does not necessarily need to achieve all of the above technical effects at the same time. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the equipment for non-vacuum impregnated catalyst according to an embodiment of the present invention.

[0013] Attached Figure Labels

[0014] Impregnation tank 10, liquid inlet 11, liquid outlet 12, liquid drain 13, fixed bracket 14, heating chamber 20, heating coil 30, lifting rod 40, placement basket 50, grid-shaped partition plate 60, stirring mechanism 70, stirring shaft 71, stirring blade 72, storage tank 80, conveying pipeline 81, circulation pump 90. Detailed Implementation

[0015] The following will describe in detail the implementation of this utility model with reference to the accompanying drawings and embodiments, so that the implementation of this utility model can be fully understood and carried out based on how technical means are used to solve technical problems and achieve technical effects.

[0016] Please refer to Figure 1 , Figure 1This is a schematic diagram of a non-vacuum impregnation catalyst device according to an embodiment of the present invention. As shown in the figure, a non-vacuum impregnation catalyst device includes an impregnation tank 10 with its opening facing upwards, a heating chamber 20 arranged around the outer perimeter of the impregnation tank 10, and a heating coil 30 arranged inside the heating chamber 20.

[0017] In one embodiment of this utility model, the impregnation tank 10 is made of 304 stainless steel and is a rectangular cavity with an open top. The inner wall is smooth and burr-free. A heating cavity 20 is welded and sealed around the outer perimeter of the tank. The distance between the heating cavity 20 and the outer wall of the impregnation tank 10 is 5-8mm. The cavity is filled with high-temperature resistant insulation cotton to reduce heat loss. A φ8mm stainless steel heating coil 30 is coiled inside the heating cavity 20. The coil is spirally attached to the outer wall of the impregnation tank 10 and has a total length of 2-3m. A PT100 temperature sensor is embedded near the top of the inner wall of the heating cavity 20. The sensor probe directly contacts the air inside the heating cavity 20. Its signal output terminal is electrically connected to an external PLC controller via a wire. The temperature of the heating cavity 20 can be collected in real time, thereby indirectly controlling the temperature of the impregnation liquid in the impregnation tank 10 to be stable between 30-55℃. If the temperature is below 30℃, the controller triggers the heating coil 30 to turn on for heating; if the temperature is above 55℃, the heating power is cut off.

[0018] Furthermore, lifting rods 40 are provided on both sides inside the impregnation tank 10, a placement basket 50 is provided on the top of the lifting rods 40, a grid-like partition plate 60 is provided inside the placement basket 50, and a stirring mechanism 70 is provided in the middle of the impregnation tank 10. The stirring mechanism 70 includes a stirring shaft 71 provided at the bottom of the impregnation tank 10, and stirring blades 72 are provided on the stirring shaft 71.

[0019] In detail, two electric telescopic rods are used, which are vertically fixed to the inner two side walls of the impregnation tank 10. The fixed end of the telescopic rod is welded to the bottom of the impregnation tank 10, and the top of the telescopic end is connected to the two side edges of the placement basket 50 by bolts. The drive motor of the electric telescopic rod is electrically connected to the controller through wires, and the lifting speed can be set to 5cm / s. Two limiting protrusions are welded to the outer side of the telescopic rod along its length. Stainless steel limiting blocks are welded to the inner wall of the impregnation tank 10 at the corresponding positions of the protrusions. When the protrusions contact the limiting blocks, the telescopic rod automatically stops lifting, thereby limiting the maximum lifting stroke of the placement basket 50 and preventing the carrier from colliding with the tank opening. The placement basket 50 has a cuboid frame structure. The outer side of the frame is wrapped with a 10-mesh stainless steel mesh. Inside, three mesh-like partition plates 60 are welded at 15cm intervals along the height direction for layered placement of the catalyst carrier. The vent holes allow the impregnation liquid to quickly penetrate to the surface of the carrier, preventing air bubbles from accumulating below the carrier and affecting the impregnation effect.

[0020] Preferably, the bottom of the impregnation tank 10 is provided with an inlet 11, an outlet 12 and a drain 13. The inlet 11 and the outlet 12 are connected to the storage tank 80. The inlet 11 and the storage tank 80, and the outlet 12 and the storage tank 80 are connected through a conveying pipe 81. The conveying pipe 81 is controlled by a circulation pump 90.

[0021] In detail, the tank is made of polyethylene and placed on a ground support next to the impregnation tank 10. The top of the tank has an inlet 11 and a return outlet, and the bottom has an outlet 12. The storage tank 80 is connected to the impregnation tank 10 through three delivery pipes 81: the outlet 12 of the storage tank 80 extends to the inlet 11 on one side of the bottom of the impregnation tank 10, and the pipes are connected in series with a circulation pump 90 and a manual regulating ball valve. The circulation pump 90 is electrically connected to the liquid level sensor and controller through wires, which can realize automatic liquid replenishment or manual control of circulation; the outlet 12 on the other side of the bottom of the impregnation tank 10 extends to the return outlet of the storage tank 80, and the solenoid valve of the drain outlet 13 of the impregnation tank 10 extends to the waste liquid tank. The waste liquid tank has a waste liquid inlet on the top and a manual drain valve at the bottom for centralized collection of waste impregnation liquid after impregnation.

[0022] In summary, this invention achieves precise temperature control through the heating chamber 20, convenient lifting and lowering of the carrier through the lifting rod 40, uniform mixing of the impregnation liquid through the stirring blade 72, leakage prevention through the mechanical seal, and efficient reuse of the impregnation liquid through the circulation system. Its simple structure and low cost enable uniform impregnation of the catalyst carrier in a non-vacuum environment, effectively improving catalyst activity and production efficiency, making it suitable for small and medium-sized catalyst production scenarios.

[0023] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention's conception through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An apparatus for non-vacuum impregnation of a catalyst, characterized in that, The impregnation tank has an upward-facing opening. Heating chambers are located around the outer perimeter of the impregnation tank, and heating coils are installed within these chambers. Lifting rods are located on both sides of the inner side of the impregnation tank, and a placement basket is located at the top of each lifting rod. A grid-like partition plate is installed within the placement basket. A stirring mechanism is located in the center of the impregnation tank, including a stirring shaft at the bottom of the tank with stirring blades. An inlet, outlet, and drain are located at the bottom of the impregnation tank. The inlet and outlet are connected to a storage tank, and the inlet and outlet are connected to the storage tank via a conveying pipeline controlled by a circulation pump.

2. The apparatus for non-vacuum impregnating catalyst according to claim 1, characterized in that, The bottom of the impregnation tank is equipped with a fixed support.

3. The apparatus for non-vacuum impregnating catalyst according to claim 1, characterized in that, The drain outlet is connected to the waste liquid tank and is controlled by a solenoid valve.

4. The apparatus for non-vacuum impregnating catalyst according to claim 1, characterized in that, The heating chamber is also equipped with a temperature sensor, which is electrically connected to an external controller. The heating coil can adjust the heating power through the controller, and the temperature of the impregnation liquid in the impregnation tank can be stably controlled within the range of 30-55℃.

5. The apparatus for non-vacuum impregnating catalyst according to claim 1, characterized in that, The lifting rod is an electric telescopic rod, and the drive motor of the electric telescopic rod is electrically connected to the controller.

6. The apparatus for non-vacuum impregnating catalyst according to claim 1, characterized in that, The surface of the stirring blade is coated with a polytetrafluoroethylene anti-corrosion coating.

Images