Low temperature drying apparatus for molybdenum trioxide powder

Abstract

The utility model discloses a kind of molybdenum trioxide powder low-temperature drying equipment, it is related to molybdenum trioxide powder drying technical field, including dryer, feed pipe, discharge pipe and low-temperature circulation component, the feed pipe is equipped on the upper end wall body of dryer, and its bottom end wall body is fixed with several discharge pipes, drying component is equipped in the inside of dryer, the drying component includes fixed cylinder by mounting assembly installation in the inside of dryer, first stirring rod and second stirring rod are rotatably connected with fixed cylinder wall body and are fixedly installed in the scraper of fixed cylinder lower end, first stirring rod and second stirring rod are linked by transmission assembly between the described first stirring rod and second stirring rod, the fixed cylinder top end is equipped with driving assembly, the utility model can effectively prevent powder accumulation, avoid powder agglomeration, make powder heat more evenly, improve the drying uniformity and drying efficiency of molybdenum trioxide powder, guarantee the production quality and efficiency of molybdenum trioxide powder.

Description

Technical Field

[0001] This utility model relates to the field of molybdenum trioxide powder drying technology, specifically a low-temperature drying device for molybdenum trioxide powder. Background Technology

[0002] Molybdenum trioxide (MoO3) is an inorganic compound primarily used to determine proteins, phenols, arsenic, lead, bismuth, etc. It can also be used as a reducing agent for phosphorus pentoxide, arsenic trioxide, hydrogen peroxide, phenols, and alcohols. Furthermore, it can be used to prepare molybdenum salts and alloys, and has wide applications in catalysts, ceramics, and pigments. During the production and processing of molybdenum trioxide powder, drying is necessary to remove moisture and ensure product quality.

[0003] Currently, molybdenum trioxide powder is often dried using a disc turbine dryer. However, the turbine speed is relatively high (usually 50-200 r / min), and the powder is easily thrown towards the inner wall of the dryer by the turbine. After contacting the high-temperature wall surface, the powder agglomerates, resulting in the powder accumulating inside the equipment, uneven drying, and low drying efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a low-temperature drying device for molybdenum trioxide powder to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a low-temperature drying device for molybdenum trioxide powder, including a dryer, a feed pipe, a discharge pipe, and a low-temperature circulation component. The upper wall of the dryer is provided with a feed pipe, and several discharge pipes are fixedly provided on its lower wall. The dryer is provided with a drying component, which includes a fixed cylinder installed in the dryer by an installation assembly, a first stirring rod and a second stirring rod rotatably connected to the wall of the fixed cylinder, and a scraper fixedly installed at the lower end of the fixed cylinder. The first stirring rod and the second stirring rod are linked by a transmission assembly, and a drive assembly is provided at the top of the fixed cylinder.

[0006] In a preferred embodiment: the number of the second stirring rod and scraper is several, and they are distributed at equal intervals around the circumference; the number of discharge pipes is several, and each discharge pipe is equipped with a valve.

[0007] In a preferred embodiment: the transmission assembly includes a first gear, a second gear, a positioning groove, and a positioning block. The positioning block is fixedly connected to the bottom wall of the dryer. The bottom end of the first stirring rod is provided with the positioning groove that matches the positioning block. The first gear is fixedly connected to the upper wall of the first stirring rod. The second gear is fixedly connected to the upper wall of several second stirring rods. The first gear and the second gear are meshed together.

[0008] In a preferred embodiment: the mounting assembly includes a top cover and fastening bolts, the top cover is rotatably connected to the outer wall of the fixed cylinder, the top cover is placed at the upper end of the dryer, and the lower ends of a plurality of fastening bolts penetrate the top cover and are threadedly connected to the upper wall of the dryer and the top cover.

[0009] In a preferred embodiment: the drive assembly includes a drive motor, a first sprocket, a second sprocket, and a chain. The drive motor is mounted on the top cover, the first sprocket is mounted on the output shaft of the drive motor, and the second sprocket is mounted on the fixed cylinder. The first sprocket and the second sprocket are connected by a chain drive.

[0010] In a preferred embodiment: the low-temperature circulation component includes a low-temperature heat exchange box, an air inlet pipe, a first return air pipe, a dehumidifier, and a second return air pipe. The low-temperature heat exchange box is connected to the dryer through the air inlet pipe. The first return air pipe is provided at the lower end of the dryer, and the second return air pipe is provided at the lower end of the low-temperature heat exchange box. The first return air pipe and the second return air pipe are connected through the dehumidifier.

[0011] In a preferred embodiment, the dehumidifying component is a dehumidifying box filled with a desiccant.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are: This invention features a drying component. The fixed cylinder moves under the action of a drive assembly, while the first and second stirring rods rotate in conjunction with a transmission assembly, stirring the molybdenum trioxide powder inside the dryer. Combined with a scraper at the lower end of the fixed cylinder, this effectively prevents powder accumulation on the inner wall and bottom of the dryer, avoiding powder agglomeration and ensuring more uniform heating, thus improving drying uniformity and efficiency. Furthermore, the low-temperature circulation component allows low-temperature drying air from a low-temperature heat exchanger to enter the dryer, achieving low-temperature drying of the molybdenum trioxide powder and preventing high temperatures from affecting its properties. The air carrying moisture is dehumidified by a dehumidifier and then recycled, ensuring both drying effectiveness and reduced energy consumption. This guarantees the production quality and efficiency of the molybdenum trioxide powder. The installation component facilitates the installation and disassembly of the fixed cylinder, simplifying equipment maintenance, repair, and internal cleaning, thereby improving ease of use and extending the equipment's lifespan. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the low-temperature drying equipment of this utility model; Figure 2This is a schematic diagram of the internal cross-sectional structure of the dryer of this utility model; Figure 3 This is a structural schematic diagram of the positioning groove and positioning block of this utility model; Figure 4 This is a schematic diagram showing the positional structure between the first stirring rod, the second stirring rod, and the scraper of this utility model; In the diagram: 1. Dryer; 2. Feed pipe; 3. Discharge pipe; 4. Fixed cylinder; 5. First stirring rod; 6. Second stirring rod; 7. Scraper; 8. First gear; 9. Second gear; 10. Positioning groove; 11. Positioning block; 12. Top cover; 13. Fastening bolt; 14. Drive motor; 15. Chain; 16. Low-temperature heat exchanger; 17. Air inlet pipe; 18. First return air pipe; 19. Second return air pipe; 20. Dehumidifier. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-4 This utility model provides a technical solution: a low-temperature drying device for molybdenum trioxide powder, including a dryer 1, a feed pipe 2, a discharge pipe 3, and a low-temperature circulation component. The upper wall of the dryer 1 is provided with a feed pipe 2, and a plurality of discharge pipes 3 are fixedly provided on its lower wall. The dryer 1 is provided with a drying component, which includes a fixed cylinder 4 installed in the dryer 1 through an installation assembly, a first stirring rod 5 and a second stirring rod 6 rotatably connected to the wall of the fixed cylinder 4, and a scraper 7 fixedly installed at the lower end of the fixed cylinder 4. The first stirring rod 5 and the second stirring rod 6 are linked through a transmission assembly, and a drive assembly is provided at the top of the fixed cylinder 4.

[0016] In use, first, the top cover 12 is fixed to the dryer 1 using the fastening bolts 13, completing the installation of the drying components such as the fixed cylinder 4. The molybdenum trioxide powder to be dried is fed into the dryer 1 through the feed pipe 2. The drive motor 14 is started, and the output shaft of the drive motor 14 drives the first sprocket to rotate. The first sprocket drives the second sprocket to rotate through the chain 15, thereby driving the fixed cylinder 4 to rotate inside the dryer 1. When the fixed cylinder 4 rotates, the first stirring rod 5 cannot rotate with the fixed cylinder 4 due to the engagement of the bottom positioning block 11 and the positioning groove 10. This causes the first gear 8 to rotate relative to the fixed cylinder 4. Through the meshing transmission of the first gear 8 and the second gear 9, several second stirring rods 6 are driven to rotate while following the rotation of the fixed cylinder 4, and to fully stir the powder inside the dryer 1 in conjunction with the first stirring rod 5. At the same time, the scraper 7 at the lower end of the fixed cylinder 4 rotates with the fixed cylinder 4 to clean the powder on the inner wall and bottom of the dryer 1, preventing accumulation and agglomeration. The low-temperature heat exchange box 16 is started, and the low-temperature drying air generated by the low-temperature heat exchange box 16 is sent into the dryer 1 through the air inlet pipe 17 to dry the molybdenum trioxide powder during the stirring process at a low temperature. During the drying process, the air carrying moisture enters the dehumidification unit through the first return air pipe 18 at the lower end of the dryer 1. The desiccant in the dehumidification box 20 adsorbs the moisture in the air. The dehumidified drying air then returns to the low-temperature heat exchange box 16 through the second return air pipe 19, realizing the recycling of air and continuously providing low-temperature drying air to the dryer 1.

[0017] The number of second stirring rods 6 and scrapers 7 is several, and they are distributed in a circumferential distance. The several scrapers 7 can more thoroughly clean the powder on the inner wall of the dryer 1 and prevent accumulation. The number of discharge pipes 3 is several, and each discharge pipe 3 is equipped with a valve.

[0018] The transmission assembly includes a first gear 8, a second gear 9, a positioning groove 10, and a positioning block 11. The positioning block 11 is fixedly connected to the bottom wall of the dryer 1. The bottom end of the first stirring rod 5 is provided with a positioning groove 10 that matches the positioning block 11. The cooperation between the positioning block 11 and the positioning groove 10 can limit the first stirring rod 5 and fix its position when the fixed cylinder 4 rotates to prevent rotation. The first gear 8 is fixedly connected to the upper wall of the first stirring rod 5, and the second gear 9 is fixedly connected to the upper wall of several second stirring rods 6. The first gear 8 and the second gear 9 are meshed together.

[0019] The mounting components include a top cover 12 and fastening bolts 13. The top cover 12 is rotatably connected to the outer wall of the fixing cylinder 4. The top cover 12 is placed on the upper end of the dryer 1. The lower ends of several fastening bolts 13 penetrate the top cover 12 and are threadedly connected to the upper wall of the dryer 1 and the top cover 12. By tightening or loosening the fastening bolts 13, the top cover 12 can be fixed and separated from the dryer 1, thereby completing the installation and disassembly of the fixing cylinder 4.

[0020] The drive assembly includes a drive motor 14, a first sprocket, a second sprocket, and a chain 15. The drive motor 14 is mounted on the top cover 12, the first sprocket is mounted on the output shaft of the drive motor 14, and the second sprocket is mounted on the fixed cylinder 4. The first sprocket and the second sprocket are connected by the chain 15.

[0021] The low-temperature circulation component includes a low-temperature heat exchange box 16, an air inlet duct 17, a first return air duct 18, a dehumidifier, and a second return air duct 19. The low-temperature heat exchange box 16 is connected to the dryer 1 through the air inlet duct 17. The low-temperature heat exchange box 16 can provide low-temperature drying air, which is sent into the dryer 1 through the air inlet duct 17 to provide a low-temperature environment for drying molybdenum trioxide powder. The dryer 1 is equipped with a first return air duct 18 at the lower end, and the low-temperature heat exchange box 16 is equipped with a second return air duct 19 at the lower end. The first return air duct 18 and the second return air duct 19 are connected through the dehumidifier. The air carrying moisture in the dryer 1 enters the dehumidifier through the first return air duct 18 for dehumidification. The dehumidified air then returns to the low-temperature heat exchange box 16 through the second return air duct 19, realizing the recycling of air and reducing energy consumption.

[0022] The dehumidification component is a dehumidification box 20, which is filled with desiccant. The desiccant can effectively absorb moisture in the air, ensuring that the air entering the low-temperature heat exchange box 16 remains dry and guaranteeing the effect of low-temperature drying.

[0023] Finally, it should be noted that: all parts not described in this utility model are the same as or can be implemented using existing technology. The above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A low-temperature drying device for molybdenum trioxide powder, comprising a dryer (1), a feed pipe (2), a discharge pipe (3), and a low-temperature circulation component, wherein the dryer (1) has a feed pipe (2) on its upper wall and a plurality of discharge pipes (3) fixedly provided on its lower wall, and the dryer (1) has a drying component inside, characterized in that: The drying component includes a fixed cylinder (4) installed in the dryer (1) by an installation assembly, a first stirring rod (5) and a second stirring rod (6) rotatably connected to the wall of the fixed cylinder (4), and a scraper (7) fixedly installed at the lower end of the fixed cylinder (4). The first stirring rod (5) and the second stirring rod (6) are linked by a transmission assembly, and a drive assembly is provided at the top of the fixed cylinder (4).

2. The low-temperature drying equipment for molybdenum trioxide powder according to claim 1, characterized in that: The number of the second stirring rod (6) and scraper (7) is several, and they are distributed at equal distances around the circumference. The number of discharge pipes (3) is several, and each discharge pipe (3) is equipped with a valve.

3. The low-temperature drying equipment for molybdenum trioxide powder according to claim 2, characterized in that: The transmission assembly includes a first gear (8), a second gear (9), a positioning groove (10), and a positioning block (11). The positioning block (11) is fixedly connected to the bottom wall of the dryer (1). The bottom end of the first stirring rod (5) is provided with the positioning groove (10) that matches the positioning block (11). The first gear (8) is fixedly connected to the upper wall of the first stirring rod (5). The second gear (9) is fixedly connected to the upper wall of several second stirring rods (6). The first gear (8) and the second gear (9) are meshed together.

4. The low-temperature drying equipment for molybdenum trioxide powder according to claim 3, characterized in that: The mounting assembly includes a top cover (12) and fastening bolts (13). The top cover (12) is rotatably connected to the outer wall of the fixing cylinder (4). The top cover (12) is placed on the upper end of the dryer (1). The lower ends of several fastening bolts (13) penetrate the top cover (12) and are threadedly connected to the upper wall of the dryer (1) and the top cover (12).

5. The low-temperature drying equipment for molybdenum trioxide powder according to claim 4, characterized in that: The drive assembly includes a drive motor (14), a first sprocket, a second sprocket, and a chain (15). The drive motor (14) is mounted on the top cover (12), the first sprocket is mounted on the output shaft of the drive motor (14), and the second sprocket is mounted on the fixed cylinder (4). The first sprocket and the second sprocket are connected by the chain (15).

6. The low-temperature drying equipment for molybdenum trioxide powder according to claim 5, characterized in that: The low-temperature circulation component includes a low-temperature heat exchange box (16), an air inlet pipe (17), a first return air pipe (18), a dehumidifier, and a second return air pipe (19). The low-temperature heat exchange box (16) is connected to the dryer (1) through the air inlet pipe (17). The dryer (1) is provided with the first return air pipe (18) at its lower end, and the low-temperature heat exchange box (16) is provided with the second return air pipe (19) at its lower end. The first return air pipe (18) and the second return air pipe (19) are connected through the dehumidifier.

7. The low-temperature drying equipment for molybdenum trioxide powder according to claim 6, characterized in that: The dehumidification component is a dehumidification box (20), which is filled with desiccant.

Images