Drying equipment for preparing maleic anhydride catalyst by low-resistance butane method

Abstract

The utility model relates to the technical field of drying equipment, in particular to drying equipment for preparing a maleic anhydride catalyst by a low-resistance butane method. According to the technical scheme, the drying device comprises a drying tank, a feeding pipe is fixedly arranged on one side of the drying tank, a driving motor is fixedly arranged on the other side of the drying tank, a spiral blade is fixedly arranged on an output shaft of the driving motor, the output shaft of the driving motor is movably connected with the inner wall of the drying tank, and a plurality of supporting legs are fixedly arranged at the bottom of the drying tank. A plurality of air channels are formed in the drying tank, one ends of the air channels are communicated, a plurality of air holes are formed in the inner walls of the tops of the air channels, and an air blowing structure is fixedly arranged at the bottom of the drying tank. The drying device is compact in structure and diversified in function, materials can be subjected to boiling drying, the situation of non-uniform drying is eradicated, water vapor generated in the drying period can be absorbed, the moisture content in the drying tank is reduced, and the drying efficiency of the drying device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drying equipment, in particular to a drying equipment for preparing a low-resistance maleic anhydride catalyst by the butane method. Background Art

[0002] The butane method maleic anhydride catalyst is a catalyst used for the reaction of butane oxidation to maleic anhydride. It is usually a composite catalyst composed of various metal oxides, such as vanadium, molybdenum, tungsten, etc. These metal oxides usually exist in solid form and play a catalytic role in the reaction. In the preparation process of the low-resistance butane method maleic anhydride catalyst, drying is a key link. A suitable drying equipment can ensure that the catalyst maintains good performance during the drying process, while improving production efficiency and product quality.

[0003] However, the existing drying equipment does not have the function of boiling heating. Generally, the air in the drying tank is heated to achieve static drying of the material, which not only reduces the drying efficiency, but also causes uneven drying of the material. In view of the above reasons, this application proposes a drying equipment for preparing a low-resistance butane method maleic anhydride catalyst with a boiling drying function. Summary of the Invention

[0004] The purpose of the utility model is to solve the problem that the existing drying equipment in the background art cannot perform boiling drying on the material, reduces the drying efficiency and is prone to uneven drying, and proposes a drying equipment for preparing a low-resistance butane method maleic anhydride catalyst with a boiling drying function.

[0005] The technical solution of the utility model: A drying equipment for preparing a low-resistance butane method maleic anhydride catalyst, including a drying tank, one side of the drying tank is fixedly provided with a feed pipe, the other side of the drying tank is fixedly provided with a driving motor, a spiral blade is fixedly provided on the output shaft of the driving motor, the output shaft of the driving motor is movably connected with the inner wall of the drying tank, the bottom of the drying tank is fixedly provided with a plurality of support legs, a plurality of air channels are arranged in the drying tank, one ends of the plurality of air channels are communicated, and a plurality of air holes are arranged on the inner walls of the tops of the plurality of air channels;

[0006] The bottom of the drying tank is fixedly provided with a blowing structure, the blowing structure includes a mounting plate fixedly connected with the drying tank, an air pump one and a temperature control box are fixedly provided at the bottom of the mounting plate, an exhaust pipe is fixedly provided on one side of the air pump one, and one end of the exhaust pipe extends into the air channel;

[0007] A dehumidification structure is arranged at the top of the drying tank.

[0008] Optionally, an air suction pipe and an air outlet pipe are respectively and fixedly arranged on both sides of the temperature control box. The air outlet pipe is fixedly connected to the air inlet end of the first air pump. A connecting pipe is movably arranged on the air suction pipe, and a filter cover is fixedly arranged at one end of the connecting pipe.

[0009] Optionally, a groove is arranged on the inner wall of one side of the drying tank close to the driving motor, a bracket is fixedly arranged on the inner wall of the other side of the drying tank far from the driving motor, a mounting block is fixedly arranged at the top of the bracket, a groove is arranged on one side of the mounting block, bearings are fixedly arranged in both of the two grooves, and the inner rings of the two bearings are fixedly sleeved on the output shaft of the driving motor.

[0010] Optionally, two clamping grooves are arranged on the outer part of the air suction pipe, two clamping blocks are fixedly arranged on the inner wall of the connecting pipe, and the clamping blocks are adapted to the clamping grooves.

[0011] Optionally, the dehumidification structure includes a placement box fixedly connected to the top of the drying tank. A material taking door is arranged on the front of the placement box. A suction pipe is fixedly arranged at the bottom of the placement box. The bottom end of the suction pipe penetrates through the inner wall of the top of the drying tank and is fixedly provided with a cross pipe. A plurality of air suction heads are fixedly arranged at the bottom of the cross pipe. A second air pump is fixedly arranged at the top of the placement box.

[0012] Optionally, the tops of a plurality of support legs are fixedly provided with the same support plate, and the support plate is in contact with the drying tank.

[0013] Optionally, the plurality of support legs are arranged in a rectangular array, and anti-slip pads are fixedly arranged at the bottoms of the plurality of support legs.

[0014] Compared with the prior art, the utility model has the following beneficial technical effects:

[0015] Through the arrangement of the air channels, air holes, the first air pump, the temperature control box and the exhaust pipe, the hot air is introduced into a plurality of air channels, and the air in the air channels acts on the surface of the material through the air holes to blow up the material and make the material in a boiling state. The spiral blades contact with the material to make the material tumble continuously and increase the contact area with the hot air, which can not only improve the drying efficiency, but also ensure the drying uniformity of the material;

[0016] Through the arrangement of the dehumidification structure, the water vapor in the drying tank can be absorbed in the drying state, and the water content in the drying tank can be reduced to an extremely low level, ensuring that the catalyst is fully dried in a dry environment;

[0017] In summary, the utility model has a compact structure and diverse functions. It can not only boil-dry the material to prevent uneven drying, but also absorb the generated water vapor during drying, reduce the water content in the drying tank, and improve the drying efficiency of the equipment. Description of the Drawings

[0018] Figure 1 Provide a three - dimensional structure schematic diagram of the present utility model;

[0019] Figure 2 Provide a front - sectional structure schematic diagram of the present utility model;

[0020] Figure 3 It is a three - dimensional schematic diagram of the air - blowing structure;

[0021] Figure 4 It is a three - dimensional schematic diagram of the dehumidification structure.

[0022] Reference numerals:

[0023] 1. Drying tank;

[0024] 2. Feed pipe;

[0025] 3. Driving motor;

[0026] 4. Screw blade;

[0027] 5. Support leg;

[0028] 6. Air duct;

[0029] 7. Air hole;

[0030] 8. Air - blowing structure; 801. Mounting plate; 802. Air pump I; 803. Temperature control box; 804. Suction pipe; 805. Connecting pipe; 806. Filter cover; 807. Exhaust pipe;

[0031] 9. Dehumidification structure; 901. Placing box; 902. Material - taking door; 903. Horizontal pipe; 904. Suction head; 905. Air pump II. Detailed implementation manners

[0032] Next, the technical solutions of the present disclosure will be described clearly and completely with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of them.

[0033] Generally, the components of the embodiments of the present disclosure described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present disclosure provided in the accompanying drawings is not intended to limit the scope of the present disclosure to be protected, but only represents the selected embodiments of the present disclosure.

[0034] All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present disclosure without creative efforts belong to the scope of protection of the present disclosure.

[0035] In the description of the present disclosure, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present disclosure.

[0036] In the description of the present disclosure, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific situations.

[0037] Embodiment 1

[0038] As Figures 1-3 shown, a drying device for preparing a low-resistance maleic anhydride catalyst by the butane method proposed by the present utility model includes a drying tank 1. A feed pipe 2 is fixedly provided on one side of the drying tank 1. A driving motor 3 is fixedly provided on the other side of the drying tank 1. A spiral blade 4 is fixedly provided on the output shaft of the driving motor 3. The spiral blade 4 can disperse the material and make it tumble. The output shaft of the driving motor 3 is movably connected to the inner wall of the drying tank 1. A groove is provided on the inner wall of the drying tank 1 close to the driving motor 3. A bracket is fixedly provided on the inner wall of the drying tank 1 far from the driving motor 3. An installation block is fixedly provided on the top of the bracket. There is a spacing between the installation block and the feed pipe 2 for the material to fall into the drying tank 1. A groove is provided on one side of the installation block. Bearings are fixedly provided in both grooves. The inner rings of both bearings are fixedly sleeved on the output shaft of the driving motor 3. A plurality of support legs 5 are fixedly provided at the bottom of the drying tank 1. The tops of the plurality of support legs 5 are fixedly provided with the same support plate. The support plate is in contact with the drying tank 1. The plurality of support legs 5 are arranged in a rectangle. Anti-slip pads are fixedly provided at the bottoms of the plurality of support legs 5. A plurality of air channels 6 are provided in the drying tank 1. One ends of the plurality of air channels 6 are communicated. A plurality of air holes 7 are provided on the top inner walls of the plurality of air channels 6;

[0039] The bottom of the drying tank 1 is fixedly provided with a blowing structure 8. The blowing structure 8 includes a mounting plate 801 fixedly connected to the drying tank 1. The bottom of the mounting plate 801 is fixedly provided with an air pump 802 and a temperature control box 803. The temperature control box 803 can control the temperature of the air introduced into the drying tank 1. Suction pipes 804 and air outlet pipes are respectively fixedly provided on both sides of the temperature control box 803. The air outlet pipe is fixedly connected to the air inlet end of the air pump 802. A connecting pipe 805 is movably provided on the suction pipe 804. Two card slots are provided outside the suction pipe 804. Two clamping blocks are fixedly provided on the inner wall of the connecting pipe 805. The clamping blocks are adapted to the card slots. One end of the connecting pipe 805 is fixedly provided with a filter cover 806. The filter cover 806 can filter the inhaled air to ensure that the materials in the equipment are not contaminated. One side of the air pump 802 is fixedly provided with an exhaust pipe 807. One end of the exhaust pipe 807 extends into the air duct 6.

[0040] In this embodiment, the materials to be dried are introduced into the drying tank 1 through the feed pipe 2. Then, the driving motor 3 and the air pump 802 are started and the temperature of the temperature control box 803 is adjusted. The air pump 802 sucks out the air in the temperature control box 803, making the suction pipe 804 at one end in a suction state. The outside air is filtered by the filter cover 806 and then inhaled. The temperature control box 803 heats the inhaled air, and then it is introduced into the exhaust pipe 807 by the air pump 802. Then, it is discharged into multiple air ducts 6 through the exhaust pipe 807 and finally sprayed out from the air holes 7 to act on the surface of the materials, blowing the materials up to make the materials in a boiling state. The spiral blades 4 contact with the materials, which can make the materials roll continuously to increase the contact area with the hot air, not only improving the drying efficiency but also ensuring the drying uniformity of the materials.

[0041] Embodiment 2

[0042] As Figures 1-4 shown, based on Embodiment 1, a dehumidifying structure 9 is provided at the top of the drying tank 1. The dehumidifying structure 9 includes a placement box 901 fixedly connected to the top of the drying tank 1. A material taking door 902 is provided on the front of the placement box 901. A suction pipe is fixedly provided at the bottom of the placement box 901. The bottom end of the suction pipe penetrates the inner wall of the top of the drying tank 1 and is fixedly provided with a horizontal pipe 903. A plurality of suction heads 904 are fixedly provided at the bottom of the horizontal pipe 903. An air pump 905 is fixedly provided at the top of the placement box 901. Before drying, desiccant is put into the placement box 901. During drying, the air pump 905 is started. Water vapor floating upward will be generated during the drying process. The air pump 905 sucks out the gas in the placement box 901, making its internal part in a negative pressure state. The suction pipe sucks out the gas in the horizontal pipe 903, and the horizontal pipe 903 makes the plurality of suction heads 904 at the bottom in a suction state, sucking the water vapor into the placement box 901. The desiccant in the placement box 901 will absorb the moisture, which can achieve the purpose of dehumidification, and can reduce the moisture content in the drying tank 1 to an extremely low level, ensuring that the catalyst is fully dried in a dry environment.

[0043] The above specific embodiments are merely several alternative embodiments of the present utility model. Based on the technical solution of the present utility model and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A drying device for preparing a low-resistance butane-process maleic anhydride catalyst, comprising a drying tank (1), characterized in that: A feed pipe (2) is fixedly provided on one side of the drying tank (1), a drive motor (3) is fixedly provided on the other side of the drying tank (1), a spiral blade (4) is fixedly provided on the output shaft of the drive motor (3), the output shaft of the drive motor (3) is movably connected to the inner wall of the drying tank (1), a plurality of supporting legs (5) are fixedly provided on the bottom of the drying tank (1), a plurality of air passages (6) are provided in the drying tank (1), one end of the plurality of air passages (6) are connected to each other, and a plurality of air holes (7) are provided on the top inner walls of the plurality of air passages (6); The bottom of the drying tank (1) is fixedly provided with an air blowing structure (8), the air blowing structure (8) comprises a mounting plate (801) fixedly connected to the drying tank (1), an air pump (802) and a temperature control box (803) are fixedly provided at the bottom of the mounting plate (801), an exhaust pipe (807) is fixedly provided on one side of the air pump (802), and one end of the exhaust pipe (807) extends into the air duct (6); A dehumidification structure (9) is provided on the top of the drying tank (1).

2. A drying device for preparing low-resistance butane-based maleic anhydride catalyst according to claim 1, characterized in that: An air intake pipe (804) and an air outlet pipe are fixedly provided on both sides of the temperature control box (803), and the air outlet pipe is fixedly connected to the air inlet end of the air pump (802). A connecting pipe (805) is movably provided on the air intake pipe (804), and a filter cover (806) is fixedly provided on one end of the connecting pipe (805).

3. A drying device for preparing low-resistance butane-based maleic anhydride catalyst according to claim 1, characterized in that: A groove is provided on the inner wall of the drying tank (1) on the side close to the drive motor (3), a bracket is fixedly provided on the inner wall of the drying tank (1) on the side away from the drive motor (3), a mounting block is fixedly provided on the top of the bracket, a groove is provided on one side of the mounting block, bearings are fixedly provided in both grooves, and the inner rings of the two bearings are fixedly sleeved on the output shaft of the drive motor (3).

4. A drying device for preparing low-resistance butane-based maleic anhydride catalyst according to claim 2, characterized in that: Two card slots are provided on the outside of the air intake pipe (804), and two card blocks are fixedly provided on the inner wall of the connecting pipe (805), and the card blocks are adapted to the card slots.

5. The drying equipment for preparing low-resistance butane-based maleic anhydride catalyst according to claim 1, characterized in that: The dehumidification structure (9) comprises a placement box (901) fixedly connected to the top of the drying tank (1); a material taking door (902) is provided on the front of the placement box (901); a suction pipe is fixedly provided on the bottom of the placement box (901); a horizontal pipe (903) is fixedly provided at the bottom end of the suction pipe passing through the top inner wall of the drying tank (1); a plurality of suction heads (904) are fixedly provided at the bottom of the horizontal pipe (903); and an air pump 2 (905) is fixedly provided on the top of the placement box (901).

6. The drying equipment for preparing low-resistance butane-based maleic anhydride catalyst according to claim 1, characterized in that: The tops of the plurality of support legs (5) are fixedly provided with a common support plate, and the support plate and the drying tank (1) are fitted together.

7. A drying device for preparing low-resistance butane-process maleic anhydride catalyst according to claim 6, characterized in that: The plurality of support legs (5) are arranged in a rectangular shape, and anti-slip pads are fixedly provided on the bottoms of the plurality of support legs (5).

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