Vanadium catalyst reaction device with precise temperature control

Abstract

The utility model relates to the technical field of preparation of vanadium catalyst, especially a vanadium catalyst reaction device of precision temperature control, including support frame, the top surface mounting of support frame has lower furnace body, the top of lower furnace body is provided with upper furnace body, the rotatory furnace is rotatably installed between upper furnace body and lower furnace body together. The utility model has the advantages of: when using, the rotatory furnace is installed between lower furnace body and upper furnace body, and is driven to rotate by drive motor, the inner wall of lower furnace body is installed with combustion assembly, and the outer wall of connecting pipe is installed with three infrared temperature sensors, which is convenient for detecting the temperature inside the rotatory furnace and sending signals to PLC, and the opening and closing degree of the gas control valve is controlled by PLC, thereby controlling the combustion of the three combustion assemblies respectively, which is convenient for precise heating of the rotatory furnace, controlling the temperature inside the rotatory furnace and ensuring high-yield reaction of vanadium catalyst.

Description

Technical Field

[0001] This invention relates to the field of vanadium catalyst preparation technology, and in particular to a vanadium catalyst reaction apparatus with precise temperature control. Background Technology

[0002] Vanadium catalysts refer to catalysts containing vanadium oxides (primarily vanadium pentoxide). ) as the main active component, supplemented with other metal oxides (such as potassium oxide) Sodium oxide Antimony oxide Solid catalysts are a class of catalysts prepared by supporting porous supports (such as diatomaceous earth, silica gel, titanium dioxide, etc.) as co-catalysts. It is the core, and it passes through vanadium ions in the reaction ( Vanadium catalysts play a role in the redox cycle of sulfur dioxide (SO2), and in the sulfuric acid industry, they can convert SO2 into SO2. ) efficiently catalytically oxidizes into sulfur trioxide ( This is the core step in the industrial contact process for producing sulfuric acid.

[0003] The preparation of vanadium catalysts involves steps such as raw material mixing, impregnation, molding, drying, and calcination. During the calcination stage in a high-temperature furnace, the internal temperature is difficult to control, leading to temperatures that are either too low or too high, resulting in reduced vanadium catalyst yield. Therefore, a vanadium catalyst reaction device with precise temperature control is proposed. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a vanadium catalyst reaction device with precise temperature control, which effectively solves the deficiencies of the prior art.

[0005] To achieve the above objectives, one embodiment of the present invention provides a vanadium catalyst reaction device with precise temperature control, including a support frame, a lower furnace body mounted on the top surface of the support frame, an upper furnace body disposed at the top of the lower furnace body, and a rotary furnace rotatably mounted between the upper furnace body and the lower furnace body, with one end of the rotary furnace open. A drive motor is fixedly installed at one end of the support frame, and a connecting frame is provided at its output end. The end of the connecting frame is fixedly connected to the end of the rotary furnace. A detachable auxiliary frame is installed at the end of the support frame away from the drive motor. A horizontally placed connecting pipe is installed at the top of the auxiliary frame. One end of the connecting pipe enters the interior of the rotary furnace. Three horn boxes are installed on the outer wall of the connecting pipe. A sealing cover is fixedly connected to the bottom surface of each of the three horn boxes. An infrared temperature sensor is installed in the middle of each sealing cover. Three combustion components for heating the rotary furnace are installed on the bottom surface of the inner wall of the lower furnace body.

[0006] Preferably, in any of the above embodiments, five support wheels are fixedly connected to both sides of the inner wall of the lower furnace body near the three combustion components, and guide rails are installed at both ends of the outer wall of the rotary furnace, with the multiple support wheels slidably connected to two guide rails respectively.

[0007] Preferably, in any of the above embodiments, the edge of the upper furnace body is fixedly connected to the lower furnace body by fasteners, and two exhaust pipes are installed on the top side of the outer wall of the upper furnace body.

[0008] Preferably, in any of the above embodiments, the inner wall of the rotary furnace is fixedly connected with multiple spiral blades, and a circular slot is provided at the end of the rotary furnace away from the inner wall of the auxiliary frame. A locking block is engaged inside the circular slot, and the locking block is rotatably connected to one end of the connecting pipe through a bearing.

[0009] Preferably, in any of the above embodiments, the auxiliary frame is fixedly connected to a downwardly inclined guide trough.

[0010] Preferably, one side of the support frame is provided with a control cabinet and a combustion control valve assembly. The control cabinet is equipped with an electrical switch and a PLC. The combustion control valve assembly includes an intake control valve and a gas control valve, both of which are electrically connected to the PLC via wires.

[0011] This utility model has the following advantages: 1. This precision temperature-controlled vanadium catalyst reaction device comprises a lower furnace body and an upper furnace body, with a rotary furnace installed between the two bodies and driven by a drive motor. Combustion components are installed on the inner wall of the lower furnace body, and a connecting pipe extends into the inner wall of the rotary furnace. Three infrared temperature sensors are installed on the outer wall of the connecting pipe to detect the internal temperature of the rotary furnace and send signals to a PLC. The PLC controls the opening and closing of the air intake control valve and the gas control valve, thereby controlling the combustion of the three combustion components. This facilitates precise heating of the rotary furnace, controls the internal temperature, and ensures high-yield production of the vanadium catalyst.

[0012] 2. This precise temperature-controlled vanadium catalyst reaction device, by setting up a lower furnace body and an upper furnace body, has five support wheels installed at both ends of the inner wall of the lower furnace body, and guide rails installed at both ends of the outer wall of the rotary furnace. The support wheels are slidably connected to the guide rails, which facilitates stable support for the rotation of the rotary furnace and reduces the resistance when the rotary furnace rotates. By installing multiple spiral blades inside the rotary furnace, the raw material of the vanadium catalyst is easily reversed and rolled inside the rotary furnace as the rotary furnace rotates, and it is in uniform contact with the inner wall of the rotary furnace, which facilitates the control of the reaction temperature. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the overall structure of this utility model; Figure 3 This is a first-view structural diagram of the entire utility model; Figure 4 This is a schematic diagram of the internal cross-sectional structure of the rotary furnace of this utility model; Figure 5 This is a schematic diagram of the auxiliary frame structure of this utility model; Figure 6 This is a schematic diagram of the connecting pipe structure of this utility model.

[0014] In the diagram: 1-Support frame, 2-Combustion control valve assembly, 3-Soundbox, 4-Sealed cover, 5-Guide groove, 6-Auxiliary frame, 7-Connecting pipe, 8-Upper furnace body, 9-Exhaust pipe, 10-Connecting frame, 11-Drive motor, 12-Rotary furnace, 13-Lower furnace body, 14-Spiral blade, 15-Infrared temperature sensor, 16-Combustion assembly, 17-Support wheel, 18-Circular slot, 19-Guide rail, 20-Card block. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0016] like Figures 1 to 6 As shown, a vanadium catalyst reaction device with precise temperature control includes a support frame 1, a lower furnace body 13 is installed on the top surface of the support frame 1, an upper furnace body 8 is provided at the top of the lower furnace body 13, and a rotary furnace 12 is rotatably installed between the upper furnace body 8 and the lower furnace body 13, with one end of the rotary furnace 12 open. A drive motor 11 is fixedly installed at one end of the support frame 1, and a connecting frame 10 is installed at the end of the rotary furnace 12 near the drive motor 11. A coupling is provided between the connecting frame 10 and the output end of the drive motor 11, and the end of the connecting frame 10 is fixedly connected to the end of the rotary furnace 12. A detachable auxiliary frame 6 is installed at the end of the support frame 1 away from the drive motor 11. A horizontally placed connecting pipe 7 is installed at the top of the auxiliary frame 6. One end of the connecting pipe 7 enters the interior of the rotary furnace 12. Three horn boxes 3 are installed on the outer wall of the connecting pipe 7. A sealing cover 4 is fixedly connected to the bottom surface of each of the three horn boxes 3. An infrared temperature sensor 15 is installed in the middle of each sealing cover 4. The edges of the sealing cover 4 are fixedly connected to the bottom surface of the horn box 3 by screws. Three combustion components 16 for heating the rotary furnace 12 are installed on the bottom surface of the inner wall of the lower furnace body 13. Each of the three combustion components 16 includes multiple industrial burners and an arc plate. The industrial burners are installed on the arc plate, and each industrial burner is equipped with an ignition device for automatic ignition.

[0017] Five support wheels 17 are fixedly connected to both sides of the inner wall of the lower furnace body 13 near the three combustion components 16. Guide rails 19 are installed at both ends of the outer wall of the rotary furnace 12. The multiple support wheels 17 are slidably connected to two guide rails 19 respectively. As an optional technical solution of this utility model, this facilitates the stable support of the rotary furnace 12, so that the rotary furnace 12 is stably installed between the lower furnace body 13 and the upper furnace body 8, and a safe distance is left between the rotary furnace 12 and the lower furnace body 13 and the upper furnace body 8 to avoid motion interference between the rotary furnace 12 and the latter two.

[0018] The upper furnace body 8 is fixedly connected to the lower furnace body 13 at its edge by fasteners. Two exhaust pipes 9 are installed on the top side of the outer wall of the upper furnace body 8. As an optional technical solution of this utility model, this facilitates the discharge of the exhaust gas generated by the combustion component 16 to the outside. Furthermore, the upper furnace body 8 adopts a detachable structure, which facilitates individual processing on the one hand, and facilitates subsequent installation, disassembly and maintenance on the other hand.

[0019] Multiple spiral blades 14 are fixedly connected to the inner wall of the rotary furnace 12. A circular slot 18 is provided at the end of the rotary furnace 12 away from the inner wall of the auxiliary frame 6. A locking block 20 is locked inside the circular slot 18. The locking block 20 is rotatably connected to one end of the connecting pipe 7 through a bearing. As an optional technical solution of this utility model, this facilitates the rotation of the rotary furnace 12, so that the spiral blades 14 drive the reaction raw materials to rotate inside the rotary furnace 12 and make full contact with the inner wall of the rotary furnace 12, ensuring the uniformity of heating. After the auxiliary frame 6 is fixedly connected to the end of the support frame 1, it is easy for the connecting pipe 7 to push the locking block 20 into the interior of the circular slot 18. When the rotary furnace 12 rotates, the locking block 20 can rotate relative to the end of the connecting pipe 7 through the bearing, and achieve stable support for the end of the connecting pipe 7.

[0020] The auxiliary frame 6 is fixedly connected to a downwardly inclined guide trough 5 in the middle. As an optional technical solution of this utility model, this facilitates the spiral blade 14 to drive the vanadium catalyst after the reaction to flow towards the opening of the rotary furnace 12 when the drive motor 11 rotates to discharge the material. As the rotary furnace 12 continues to rotate, the vanadium catalyst is discharged and slides downward along the guide trough 5.

[0021] A control cabinet and a combustion control valve assembly 2 are installed on one side of the support frame 1. The control cabinet contains electrical switches and a PLC. The combustion control valve assembly 2 includes an air intake control valve and a gas control valve, both electrically connected to the PLC via wires. The combustion control valve assembly 2 is directly connected to three combustion components 16 via pipes. The air intake end of the combustion control valve assembly 2 is connected to an external gas source (auxiliary gas source and gas source). As an optional technical solution of this utility model, a servo driver is also installed inside the control cabinet, electrically connected to the PLC, for controlling the operation of the drive motor 11. When the temperature inside the rotary furnace 12 exceeds the set value, the PLC sends a control signal to the servo driver and controls the drive motor 11 to increase its speed. Simultaneously, the PLC controls the combustion control valve assembly 2 to reduce the amount of air and gas entering, thereby facilitating the control of the temperature inside the rotary furnace 12 within a reasonable range of the set value.

[0022] This precisely temperature-controlled vanadium catalyst reaction device requires the following steps to operate: 1) When using, the raw materials for the reaction are put into the interior of the rotary furnace 12; 2) The PLC controls the drive motor 11 to be powered on and run, which drives the rotary furnace 12 to rotate; 3) The PLC controls the combustion control valve assembly 2 to activate, allowing air and fuel to enter the combustion assembly 16 through the pipeline for combustion, thereby heating the rotary furnace 12; 4) Three infrared temperature sensors 15 measure the temperature inside the rotary furnace 12 and send the signals to the PLC. The PLC controls the combustion control valve assembly 2 to operate and control the amount of air intake and gas combustion, thereby accurately controlling the heating temperature of the combustion assembly 16.

[0023] In summary, during operation, the user sets up a lower furnace body 13 and an upper furnace body 8. The rotary furnace 12 is installed between the lower furnace body 13 and the upper furnace body 8 and is driven to rotate by a drive motor 11. A combustion assembly 16 is installed on the inner wall of the lower furnace body 13. A connecting pipe 7 extends into the inner wall of the rotary furnace 12, and three infrared temperature sensors 15 are installed on the outer wall of the connecting pipe 7. This facilitates the detection of the internal temperature of the rotary furnace 12 and sends the signal to the PLC. The PLC controls the opening and closing of the air intake control valve and the gas control valve, thereby controlling the combustion of the three combustion assemblies 16 respectively, facilitating precise heating of the rotary furnace 12 and controlling its rotation. The temperature inside furnace 12 ensures high-yield production of vanadium catalyst. A lower furnace body 13 and an upper furnace body 8 are used. Five support wheels 17 are installed at both ends of the inner wall of the lower furnace body 13, and guide rails 19 are installed at both ends of the outer wall of the rotary furnace 12. The support wheels 17 are slidably connected to the guide rails 19, thus facilitating stable support for the rotation of the rotary furnace 12 and reducing resistance during rotation. Multiple spiral blades 14 are installed inside the rotary furnace 12, which, as the furnace rotates, facilitate the reverse rolling of the vanadium catalyst raw material inside the furnace, ensuring uniform contact with the inner wall and facilitating temperature control.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vanadium catalyst reaction apparatus with precise temperature control, characterized in that: Includes a support frame (1), on the top surface of the support frame (1) a lower furnace body (13) is installed, and an upper furnace body (8) is provided at the top of the lower furnace body (13). A rotary furnace (12) is rotatably installed between the upper furnace body (8) and the lower furnace body (13), and one end of the rotary furnace (12) is open. One end of the support frame (1) is fixedly equipped with a drive motor (11), and its output end is provided with a connecting frame (10). The end of the connecting frame (10) is fixedly connected to the end of the rotary furnace (12). A detachable auxiliary frame (6) is installed at the end of the support frame (1) away from the drive motor (11). A horizontally placed connecting pipe (7) is installed at the top of the auxiliary frame (6). One end of the connecting pipe (7) enters the interior of the rotary furnace (12). Three horn boxes (3) are installed on the outer wall of the connecting pipe (7). A sealing cover (4) is fixedly connected to the bottom surface of each of the three horn boxes (3). An infrared temperature sensor (15) is installed in the middle of each sealing cover (4). Three combustion components (16) for heating the rotary furnace (12) are installed on the bottom surface of the inner wall of the lower furnace body (13).

2. The vanadium catalyst reaction apparatus with precise temperature control according to claim 1, characterized in that: Five support wheels (17) are fixedly connected to both sides of the inner wall of the lower furnace body (13) near the three combustion components (16), and guide rails (19) are installed at both ends of the outer wall of the rotary furnace (12). The multiple support wheels (17) are slidably connected to the two guide rails (19) respectively.

3. The vanadium catalyst reaction apparatus with precise temperature control according to claim 2, characterized in that: The upper furnace body (8) is fixedly connected to the lower furnace body (13) at the edge by fasteners, and two exhaust pipes (9) are installed on the top side of the outer wall of the upper furnace body (8).

4. The vanadium catalyst reaction apparatus with precise temperature control according to claim 1, characterized in that: The inner wall of the rotary furnace (12) is fixedly connected with multiple spiral blades (14). A circular slot (18) is provided at one end of the inner wall of the rotary furnace (12) away from the auxiliary frame (6). A locking block (20) is locked inside the circular slot (18). The locking block (20) is rotatably connected to one end of the connecting pipe (7) through a bearing.

5. The vanadium catalyst reaction apparatus with precise temperature control according to claim 4, characterized in that: The auxiliary frame (6) is fixedly connected to a downwardly inclined guide trough (5) in the middle.

6. The vanadium catalyst reaction apparatus with precise temperature control according to claim 1, characterized in that: A control cabinet and a combustion control valve assembly (2) are provided on one side of the support frame (1). An electrical switch and a PLC are installed inside the control cabinet. The combustion control valve assembly (2) includes an intake control valve and a gas control valve, both of which are electrically connected to the PLC via wires.

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