A molybdenum trioxide roasting device

Abstract

The application provides a molybdenum trioxide roasting device, which comprises a horizontally arranged base, a buffer fixed seat, a motor reducer and a spring fixed seat are arranged on the top of the base in sequence, a lower support is arranged above the base, a plurality of rollers are arranged on the bottom of the lower support to roll with the top of the base, a damper and a spring are arranged on the side of the buffer fixed seat and the spring fixed seat respectively, two lower support cross beams matched with the damper and the spring are arranged on the bottom of the lower support, and the other side wall of the lower support cross beam close to the spring is connected with the output end of the motor reducer; a rectangular shell for containing materials is arranged on the top of the lower support; an oxygen feeding device for feeding oxygen to the materials in the shell is arranged on the lower support, and a roasting device for roasting the materials is arranged in the shell. The application can effectively automatically turn the materials and continuously supply air, greatly improves the reaction degree of the materials, and improves the content of molybdenum trioxide in the finished product.

Description

Technical Field

[0001] This invention relates to the field of molybdenum oxide roasting, and more particularly to a molybdenum trioxide roasting apparatus. Background Technology

[0002] Molybdenum trioxide (Mo), also known as molybdenum oxide, is a raw material for producing ferromolybdenum and molybdenum compounds. It can also be added directly to molybdenum alloys as an additive to improve their properties. Molybdenum oxide is typically prepared by calcination in a rotary kiln. However, existing molybdenum oxide calcination processes only utilize a single rotary kiln, which often fails to meet the requirement of ≥95% soluble molybdenum content in the finished product. Our company has proposed a device (publication number CN211971788U) to increase the molybdenum trioxide content in the calcined product. This device features an interconnected primary calcination rotary kiln and a secondary calcination unit, allowing material to flow from the primary kiln to the secondary calcination unit. This enables direct secondary calcination after the primary calcination, resulting in a more direct, observable, and controllable production process with high efficiency. It also reduces heat loss during material transfer, lowers labor intensity, and significantly increases the molybdenum trioxide content in the finished product. However, in practice, there are still problems such as the need to manually turn the materials, which is labor-intensive for workers. Furthermore, manual turning can cause insufficient material reaction, affecting the content of molybdenum trioxide in the finished product. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology by proposing a molybdenum trioxide roasting device that can effectively and automatically turn the material and continuously supply air, which greatly improves the degree of material reaction and increases the content of molybdenum trioxide in the finished product.

[0004] The technical solution adopted by this invention to solve the above-mentioned technical problems is as follows: a molybdenum trioxide calcination device, comprising a horizontally arranged base, a buffer fixing seat, a motor reducer, and a spring fixing seat arranged horizontally in sequence on the top of the base, a lower support is provided directly above the base, and the bottom of the lower support is in rolling contact with the top of the base through multiple rollers. A damper and a spring are respectively horizontally arranged on the side of the buffer fixing seat and the spring fixing seat opposite to the motor reducer. Two lower support crossbeams matching the dampers and springs are provided at the bottom of the lower support. The other side wall of the lower support crossbeam near the spring is connected to the output end of the motor reducer. The motor reducer drives the lower support during operation. The entire structure moves towards the spring, compressing the lower support beam, causing the motor reducer to decelerate and the spring to rebound. After the motor reducer completes its movement, the lower support quickly returns to its original position. The lower support beam contacts the damper for cushioning, repeating the above-mentioned pushing and resetting action. The top of the lower support is horizontally equipped with a rectangular shell for holding materials. The shell moves along with the lower support, and the materials inside the shell are tumbled and moved forward due to the damper's cushioning and the relative movement of the shell. An inlet is opened on one side of the top of the shell, and an outlet is opened on the other side wall of the shell. The lower support is equipped with an oxygenation device for purging the materials inside the shell, and a roasting device for roasting the materials is installed inside the shell.

[0005] Preferably, the housing includes an upper housing and a lower housing, the upper housing is disposed on top of the lower housing, and the lower housing is connected to the lower support through a bottom support.

[0006] Preferably, the shell has multiple insulation layers arranged sequentially inside, and a breathable oxygen-generating plate is installed inside the insulation layer. A roasting device is arranged below the breathable oxygen-generating plate, and the roasting device includes a 490 junction box with multiple heating rods evenly installed inside.

[0007] Preferably, a ventilation opening is provided on the lower side of the lower housing, and the oxygen supply device includes a ventilation duct installed outside the lower support. The output end is connected to one end of the ventilation duct, and the other end of the ventilation duct is connected to the ventilation opening. An electrically controlled valve is also provided between the ventilation duct and the ventilation opening, and an oxygen supply pipe is also provided at the ventilation opening.

[0008] Preferably, the top of the vent is provided with an air expansion plate.

[0009] Preferably, the ventilation duct is installed on one side of the lower support via a triangular steel rod.

[0010] Preferably, the insulation layer consists of three layers, which are installed inside the housing using a set of fixing bolts.

[0011] Preferably, a lower tie rod is provided inside the housing, and the two ends of the lower tie rod are respectively installed inside the innermost insulation layer.

[0012] According to the above technical solution, the beneficial effects of the present invention are:

[0013] This roasting apparatus can effectively and automatically turn the material. When the material enters the shell, it moves together with the shell under the action of the motor reducer towards the spring. The lower support beam compresses the spring, and after pushing, the material and the shell quickly move towards the damper. The shell is buffered by the damper, while the material moves relative to the shell, turning and moving forward. This automatic turning of the material allows it to fully react with the hot air blown from the bottom of the breathable oxygen-generating plate, greatly improving the degree of material reaction and increasing the molybdenum trioxide content in the finished product. Furthermore, the hot air penetrates the material from the bottom, allowing the material to fully react with the oxygen in the hot air, further increasing the molybdenum trioxide content in the product. In addition, the insulation layer inside the shell reduces heat loss, resulting in high production efficiency. This roasting apparatus reduces the labor intensity of workers, achieves automation, and can significantly increase the molybdenum trioxide content in the finished product. Attached Figure Description

[0014] Figure 1 This is a front sectional view of the present invention;

[0015] Figure 2 This is a side view of the present invention;

[0016] Figure 3 This is a top view of the present invention.

[0017] The markings in the diagram are: 1. Feed inlet; 2. Upper shell; 3. Fixing bolt group; 4. Breathable oxygen-generating plate; 5. 490 junction box; 6. Heating rod; 7. Lower shell; 8. Bottom support; 9. Ventilation opening; 10. Lower bracket; 11. Ventilation duct; 12. Feed outlet; 13. Roller; 14. Valve; 15. Buffer fixing seat; 16. Damper; 17. Motor reducer; 18. Spring; 19. Spring fixing seat; 20. Fan; 21. Insulation layer one; 22. Insulation layer two; 23. Insulation layer three; 24. Lower tie rod; 25. Air diffuser; 26. Triangular steel; 27. Oxygen supply pipe; 28. Base. Detailed Implementation

[0018] See appendix Figure 1-3The specific implementation scheme is as follows: A molybdenum trioxide calcination device includes an upper shell 2, with an inlet 1 on one side of the top of the upper shell 2 and an outlet 12 on the other side wall of the upper shell 2. A lower shell 7 is installed at the bottom of the upper shell 2. The upper shell 2 and the lower shell 7 are sequentially provided with a first insulation layer 21, a second insulation layer 22, and a third insulation layer 23 to ensure that heat does not escape, reduce energy consumption, lower the external temperature, and provide a safe working environment. The upper shell 2 and the lower shell 7 together form a strip-shaped shell. The insulation layers are all installed inside the shell by fixing bolt groups 3. A lower tie rod 24 is provided inside the shell, and the two ends of the lower tie rod 24 are respectively installed inside the third insulation material 23 to prevent deformation of the shell due to high temperature. A breathable oxygen-generating plate 4 is installed inside the insulation material, and a calcination device is installed below the breathable oxygen-generating plate 4. The calcination device includes a 490 junction box 5 with multiple heating rods 6 evenly installed inside.

[0019] A vent 9 is provided on the lower side of the lower housing 7. An air diffuser 25 is provided at the top of the vent 9 to allow air to be blown evenly into the housing. The air blown out of the vent 9 is heated through a junction box 5. The lower housing 7 is connected to the lower support 10 via a bottom support 8. A ventilation duct 11 is installed on the outside of the lower support 10. The ventilation duct 11 is mounted on one side of the lower support 10 via a triangular steel 26, and a fan 20 is provided on one side of the ventilation duct 11. The output end of the fan 20 is connected to one end of the ventilation duct 11, and the other end of the ventilation duct 11 is connected to the vent 9. An electrically controlled valve is also provided between the ventilation duct 11 and the vent 9. The bottom end of the vent 9 is connected to an oxygen supply pipe 27.

[0020] A horizontally positioned base 28 is installed below the lower support 10. A roller 13 is rotatably mounted between the lower support 10 and the base 28, allowing the lower support 10 to slide on the base 28. A buffer fixing seat 15, a motor reducer 17, and a spring fixing seat 19 are horizontally arranged sequentially on the top of the base 28. A damper 16 and a spring 18 are horizontally arranged on the side of the buffer fixing seat 15 and the spring fixing seat 19 opposite to the motor reducer 17, respectively. Two lower support beams matching the dampers 16 and springs 18 are located at the bottom of the lower support 10. The other side wall of the lower support beam near the spring 18 is connected to the output end of the motor reducer 17. When the motor reducer 17 operates, it drives the lower support 10 to move towards the spring 18. The lower support beam compresses the spring 18, and the motor reducer 17 decelerates the spring 18, causing it to rebound. After the motor reducer 17 completes its movement, the lower support 10 quickly returns to its original position. The lower support beam contacts the damper 16 for cushioning, repeating the above-mentioned pushing and resetting action. The housing moves along with the lower support 10. The material inside the housing is tumbled and moved forward due to the buffering effect of the damper 16 and the relative movement of the housing. The gas blown out of the vent 9 is heated through the junction box 5. The hot air penetrates the material from the bottom, allowing the material to react fully with the oxygen in the hot air, increasing the molybdenum trioxide content in the product. This eliminates the need for manual turning of the material and reduces production costs.

[0021] In practical implementation, the actual installation position of the entire device at the production site is usually determined in advance based on the production requirements of molybdenum oxide roasting, the actual conditions of the production site, and the transportation of raw materials. Then, the connection method between the present invention and the pre-processing device is determined. Simply connect the discharge port of the pre-processing device to the inlet 1 of the present invention to enable the material to enter the present invention from the pre-processing device. The present invention can then be used to achieve the purpose of producing high-content molybdenum trioxide in one roasting. Moreover, the entire process is under negative pressure with no dust, which reduces the labor intensity of workers and makes the working environment safer and cleaner, thereby reducing production costs and human resources.

[0022] The technical solutions and implementation schemes exemplified in this invention are not intended to limit the scope of this invention. Any solutions that are equivalent to or have the same effect as the technical solutions and implementation schemes listed in this invention are within the scope of protection of this invention.

Claims

1. A molybdenum trioxide calcination apparatus, characterized in that: The system includes a horizontally positioned base (28). The top of the base (28) is horizontally arranged with a buffer fixing seat (15), a motor reducer (17), and a spring fixing seat (19). A lower support (10) is positioned directly above the base (28). The bottom of the lower support (10) is connected to the top of the base (28) via multiple rollers (13). The buffer fixing seat (15) and the spring fixing seat (19) are horizontally positioned with a damper (16) and a spring (18) respectively on the side opposite to the motor reducer (17). The bottom of the lower support (10) has two lower support beams that match the dampers (16) and springs (18). The other side wall of the lower support beam closest to the spring (18) is connected to the output end of the motor reducer (17). When the motor reducer (17) operates, it drives the lower support (10) to move towards the spring (18). The lower support beam compresses the spring (18), and the motor reducer (17) decelerates the spring (18) to rebound. After the motor reducer (17) completes its movement... The lower support (10) quickly resets as a whole, and the lower support beam contacts the damper (16) for buffering, repeating the above-mentioned pushing and resetting action; the top of the lower support (10) is provided with a rectangular shell for holding materials, and the shell moves with the lower support (10). The materials in the shell are tumbled and moved forward due to the buffering of the damper (16) and the relative movement of the shell; an inlet (1) is opened on one side of the top of the shell, and an outlet (12) is opened on the other side wall of the shell; an oxygenation device for oxygenating the materials in the shell is provided on the lower support (10), and a roasting device for roasting the materials is provided inside the shell.

2. The molybdenum trioxide calcination apparatus according to claim 1, characterized in that: The housing includes an upper housing (2) and a lower housing (7). The upper housing (2) is located on top of the lower housing (7). The lower housing (7) is connected to the lower support (10) via a bottom support (8).

3. The molybdenum trioxide calcination apparatus according to claim 2, characterized in that: The shell is provided with multiple insulation layers in sequence. A breathable oxygen-generating plate (4) is installed inside the insulation layer. A roasting device is provided below the breathable oxygen-generating plate (4). The roasting device includes a 490 junction box (5) with multiple heating rods (6) evenly installed inside.

4. The molybdenum trioxide calcination apparatus according to claim 2, characterized in that: The lower housing (7) has a ventilation opening (9) on its lower side. The oxygen supply device includes a ventilation duct (11) and a fan (20) installed outside the lower support (10). The output end of the fan (20) is connected to one end of the ventilation duct (11), and the other end of the ventilation duct (11) is connected to the ventilation opening (9). An electrically controlled valve is also provided between the ventilation duct (11) and the ventilation opening (9). An oxygen supply pipe (27) is also provided at the ventilation opening (9).

5. The molybdenum trioxide calcination apparatus according to claim 4, characterized in that: An air diffuser (25) is provided at the top of the vent (9).

6. The molybdenum trioxide calcination apparatus according to claim 4, characterized in that: The ventilation duct (11) is installed on one side of the lower bracket (10) via a support frame (26).

7. The molybdenum trioxide calcination apparatus according to claim 3, characterized in that: The insulation layer consists of three layers, which are installed inside the housing by a set of fixing bolts (3).

8. The molybdenum trioxide calcination apparatus according to claim 7, characterized in that: The housing is provided with a lower tie rod (24), and the two ends of the lower tie rod (24) are respectively installed inside the innermost insulation layer.

Images