CN221223288U - Molybdenum powder heating device - Google Patents

Abstract

The utility model discloses a molybdenum powder heating device, comprising a cyclone dryer body, a heating bin is arranged at one end of a feed port of the cyclone dryer body, a feeding hopper is arranged at the top of the heating bin, a sealing cover is buckled on the upper end of the feeding hopper, a rotary stirring component is arranged in the heating bin, a side wall of the heating bin is a hollow jacket structure, and heat transfer oil is poured into the hollow jacket structure. The utility model relates to the technical field of molybdenum powder processing, and heat is exchanged between the inner wall of the heating bin and the molybdenum powder, so as to achieve the drying effect on the molybdenum powder, and the water vapor generated by evaporation is guided out through a vacuum pump under the action of negative pressure, and the rotary stirring component is started at the same time, and the molybdenum powder is stirred by the rotary stirring component to increase the heat exchange contact area between the molybdenum powder and the bin wall, and the preliminarily dried molybdenum powder enters the collecting hopper through a material guide pipe, so that the humidity of the molybdenum powder can be greatly reduced.

Description

A molybdenum powder heating device

Technical Field

The utility model relates to the technical field of molybdenum powder processing, in particular to a molybdenum powder heating device.

Background technique

Molybdenum powder has a certain humidity when it is initially extracted, which makes it inconvenient for long-term storage. Therefore, a cyclone drying device is used to dry it during processing. During use, the cyclone drying device conveys the molybdenum powder into the drying device for rapid drying through the cyclone, and the dried molybdenum powder is discharged through the powder outlet below, and the drying and aggregation operations are completed in one. However, during use of the existing drying device, it was found that some molybdenum powder is easy to adhere to the inner wall of the fuselage or the guide plate due to its high humidity, affecting the heating, drying and heat exchange efficiency. Therefore, the efficiency of heating and drying the molybdenum powder by relying solely on the cyclone drying device is low. Therefore, how to further reduce the initial humidity of the molybdenum powder when entering the cyclone dryer has become a problem that needs to be urgently solved by technical personnel in this field. In view of this, in-depth research on the above-mentioned problem has led to the emergence of this case.

Utility Model Content

In view of the deficiencies of the prior art, the utility model provides a molybdenum powder heating device, which solves the problems raised in the background technology.

To achieve the above purpose, the utility model is implemented through the following technical solutions: a molybdenum powder heating device, including a cyclone dryer body, a heating bin is arranged at one end of the feed port of the cyclone dryer body, a feeding hopper is arranged at the top of the heating bin, a sealing cover is installed at the upper end of the feeding hopper, a rotary stirring assembly is arranged in the heating bin, the side wall of the heating bin is a hollow jacket structure, the hollow jacket structure is filled with heat transfer oil, a circulating heating assembly is connected to the side of the heating bin, an exhaust port is arranged at the top of the heating bin, a vacuum pump is connected to one end of the exhaust port, a material guide pipe is arranged at the bottom of the heating bin, a collecting hopper is arranged at the lower end of the material guide pipe, and a discharge valve is sleeved on the material guide pipe;

The rotary stirring assembly includes a driving mechanism, a fixed shaft, a stirring frame and a scraper. The driving mechanism is arranged on the heating bin. The fixed shaft is rotatably arranged in the heating bin and one end is connected to the output end of the driving mechanism. The stirring frame is sleeved on the fixed shaft. The scraper is installed on the side wall of the stirring frame through a swing support.

The above-mentioned swing support member includes a support, a rotating shaft, a connecting block and a torsion spring. The support is fixed on the side wall of the mixing frame, the rotating shaft is rotatably arranged between the supports, the connecting block is welded to one end of the scraper and fixedly connected to the rotating shaft, and the torsion spring is sleeved on the rotating shaft and one end is connected to the mixing frame and the other end is connected to the scraper.

The above-mentioned circulating heating component includes a liquid storage tank, a circulating pump, a heater and a temperature probe. The liquid storage tank is arranged on one side of the heating chamber, and the circulating pump is arranged in the liquid storage tank. The liquid inlet end of the circulating pump extends into the liquid storage tank, and the liquid outlet end is connected with the hollow jacket structure through an oil filling pipe. The upper part of the hollow jacket structure is connected with the liquid storage tank through an oil return pipe. The heater is arranged in the liquid storage tank, and the temperature probe is arranged on one side of the heater.

A one-way valve is mounted on the oil filling pipe, and the conducting direction of the one-way valve points to the inner side of the hollow jacket structure.

A temperature sensor is installed on the side wall of the fixed shaft.

The upper end surface of the collecting hopper is provided with air inlet holes along the circumferential direction.

Beneficial Effects

The utility model provides a molybdenum powder heating device. It has the following beneficial effects: the molybdenum powder heating device is provided with a heating bin on one side of the feed end of the existing cyclone dryer body, after the molybdenum powder to be dried is firstly put into the heating bin, the sealing cover at the upper end of the feeding hopper is closed, and the vacuum pump is started to keep the inside of the heating bin in a vacuum state, and the circulating heating component is started, and the high-temperature heat-conducting oil is injected into the hollow jacket structure by the circulating heating component, and heat is exchanged with the molybdenum powder through the inner wall of the heating bin, so as to realize the drying effect on the molybdenum powder, and the water vapor generated by evaporation is guided out through the vacuum pump under the action of negative pressure, and the rotary stirring component is started at the same time, and the molybdenum powder is stirred by the rotary stirring component to increase the heat exchange contact area between the molybdenum powder and the bin wall, and the molybdenum powder after preliminary drying enters the collecting hopper through the guide pipe, which can greatly reduce the humidity of the molybdenum powder, and the molybdenum powder after preliminary drying enters the cyclone dryer body for drying, which can greatly improve the drying operation efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a front cross-sectional structure of a molybdenum powder heating device according to the utility model.

FIG. 2 is a schematic diagram of a partially enlarged structure of a molybdenum powder heating device at position a described in the utility model.

In the figure: 1. Cyclone dryer body; 2. Heating chamber; 3. Feed hopper; 4. Sealing cover; 5. Exhaust port; 6. Vacuum pump; 7. Material guide pipe; 8. Collecting hopper; 9. Discharge valve; 10. Driving mechanism; 11. Fixed shaft; 12. Stirring frame; 13. Scraper; 14. Support; 15. Rotating shaft; 16. Connecting block; 17. Torsion spring; 18. Liquid storage tank; 19. Circulation pump; 20. Heater; 21. Temperature probe; 22. One-way valve; 23. Temperature sensor; 24. Air inlet.

Detailed ways

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

Embodiment: In combination with the attached drawings 1-2 of the specification, it can be seen that the present scheme specifically designs a molybdenum powder heating device, a heating bin 2 is arranged at one end of the feed port of the cyclone dryer body 1, a feeding hopper 3 is arranged on the top of the heating bin 2, a sealing cover 4 is installed on the upper end of the feeding hopper 3, a rotary stirring component is arranged in the heating bin 2, the side wall of the heating bin 2 is a hollow jacket structure, the hollow jacket structure is filled with heat transfer oil, the side of the heating bin 2 is connected to a circulating heating component, an exhaust port 5 is arranged on the top of the heating bin 2, and one end of the exhaust port 5 is connected to A vacuum pump 6 is provided at the bottom of the heating bin 2, a material guide pipe 7 is provided at the lower end of the material guide pipe 7, a material collecting hopper 8 is provided, a discharge valve 9 is mounted on the material guide pipe 7, and an air inlet 24 is provided on the upper end surface of the material collecting hopper 8 along the circumferential direction; wherein the rotary stirring assembly comprises a driving mechanism 10, a fixed shaft 11, a stirring frame 12 and a scraper 13, the driving mechanism 10 is provided on the heating bin 2, the fixed shaft 11 is rotatably provided in the heating bin 2 and one end is connected to the output end of the driving mechanism 10, and a temperature sensor 23 is installed on the side wall of the fixed shaft 11 , the stirring frame 12 is sleeved on the fixed shaft 11, and the scraper 13 is installed on the side wall of the stirring frame 12 through a swing support. After the molybdenum powder to be dried is first put into the heating bin 2, the upper sealing cover 4 of the feeding hopper 3 is closed, and the vacuum pump 6 is started to keep the inside of the heating bin 2 in a vacuum state, and the circulating heating component is started. The high-temperature heat-conducting oil is injected into the hollow jacket structure by the circulating heating component, and heat is exchanged with the molybdenum powder through the inner wall of the heating bin 2, thereby achieving the drying effect on the molybdenum powder. The water vapor generated by evaporation is guided out through the vacuum pump 6 under the action of negative pressure, and the driving mechanism 10 of the rotary stirring component is started at the same time. The driving mechanism 10 is used to drive the fixed shaft 11 to rotate, and the fixed shaft 11 rotates to drive the stirring frame 12 to rotate, and the stirring frame 12 is used to stir the molybdenum powder to increase the heat exchange contact area between the molybdenum powder and the bin wall. The molybdenum powder after preliminary drying enters the collecting hopper 8 through the guide pipe 7, which can greatly reduce the humidity of the molybdenum powder. The molybdenum powder after preliminary drying enters the cyclone dryer body 1 for drying, which can greatly improve the drying operation efficiency.

In the specific implementation process, the above-mentioned swing support member includes a support 14, a rotating shaft 15, a connecting block 16 and a torsion spring 17. The support 14 is fixed on the side wall of the stirring frame 12, and the rotating shaft 15 is rotatably set between the supports 14. The connecting block 16 is welded to one end of the scraper 13 and is fixedly connected to the rotating shaft 15. The torsion spring 17 is sleeved on the rotating shaft 15 and one end is connected to the stirring frame 12 and the other end is connected to the scraper 13. When in use, the scraper 13 is fixed to the rotating shaft 15 through the connecting block 16, so that the rotation coordination with the stirring frame 12 is achieved through the rotating shaft 15. At the same time, under the torsion force of the torsion spring 17, one side of the scraper 13 is attached to the inner wall of the heating bin 2, so that the molybdenum powder adhering to the inner wall of the heating bin 2 can be cleared off.

In the specific implementation process, the above-mentioned circulating heating component includes a liquid storage tank 18, a circulating pump 19, a heater 20 and a temperature probe 21. The liquid storage tank 18 is arranged on one side of the heating chamber 2, and the circulating pump 19 is arranged in the liquid storage tank 18. The liquid inlet end of the circulating pump 19 extends into the liquid storage tank 18, and the liquid outlet end is connected to the hollow jacket structure through an oil filling pipe. The upper part of the hollow jacket structure is connected to the liquid storage tank 18 through an oil return pipe. The heater 20 is arranged in the liquid storage tank 18, and the temperature probe 21 is arranged on one side of the heater 20. A one-way valve 22 is mounted on the middle oil filling pipe, and the conduction direction of the one-way valve 22 points to the inside of the hollow jacket structure. When in use, the heater 20 is used to heat the heat transfer oil in the liquid storage tank 18. When the temperature is heated to the design temperature, the circulation pump 19 is started, and the high-temperature heat transfer oil is extracted by the circulation pump 19 and injected into the hollow jacket structure of the heating bin 2 through the oil filling pipe. The heat is exchanged with the molybdenum powder through the inner wall of the heating bin 2. The low-temperature heat transfer oil after the heat exchange flows back to the liquid storage tank 18 through the upper oil return pipe, thereby realizing the recycling of the heat transfer oil.

Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The molybdenum powder heating device comprises a cyclone dryer body, and is characterized in that a heating bin is arranged at one end of a feed inlet of the cyclone dryer body, a feeding hopper is arranged at the top of the heating bin, a sealing cover is buckled at the upper end of the feeding hopper, a rotary stirring assembly is arranged in the heating bin, the side wall of the heating bin is of a hollow jacket structure, heat conducting oil is filled in the hollow jacket structure, a circulating heating assembly is connected to the side part of the heating bin, an exhaust port is arranged at the top of the heating bin, a vacuum pump is connected to one end of the exhaust port, a material guide pipe is arranged at the bottom of the heating bin, a collecting hopper is arranged at the lower end of the material guide pipe, and a discharging valve is sleeved on the material guide pipe;

The rotary stirring assembly comprises a driving mechanism, a fixed shaft, a stirring frame and a scraping plate, wherein the driving mechanism is arranged on the heating bin, the fixed shaft is rotatably arranged in the heating bin, one end of the fixed shaft is connected with the output end of the driving mechanism, the stirring frame is sleeved on the fixed shaft, and the scraping plate is arranged on the side wall of the stirring frame through a swinging supporting piece.

2. The molybdenum powder heating device according to claim 1, wherein the swinging support piece comprises a support, a rotating shaft, a connecting block and a torsion spring, the support is fixedly arranged on the side wall of the stirring frame, the rotating shaft is rotatably arranged between the supports, the connecting block is welded at one end of the scraping plate and is fixedly connected with the rotating shaft, and the torsion spring is sleeved on the rotating shaft, one end of the torsion spring is connected with the stirring frame, and the other end of the torsion spring is connected with the scraping plate.

3. The molybdenum powder heating device according to claim 1, wherein the circulating heating assembly comprises a liquid storage tank, a circulating pump, a heater and a temperature probe, the liquid storage tank is arranged on one side of the heating bin, the circulating pump is arranged in the liquid storage tank, a liquid inlet end of the circulating pump stretches into the liquid storage tank, a liquid outlet end of the circulating pump is communicated with the hollow jacket structure through a filler pipe, the upper part of the hollow jacket structure is communicated with the liquid storage tank through an oil return pipe, the heater is arranged in the liquid storage tank, and the temperature probe is arranged on one side of the heater.

4. A molybdenum powder heating apparatus according to claim 3, wherein the filler pipe is provided with a check valve, and the conduction direction of the check valve is directed to the inner side of the hollow jacket structure.

5. The molybdenum powder heating apparatus of claim 1, wherein a temperature sensor is mounted on a side wall of the stationary shaft.

6. The molybdenum powder heating apparatus of claim 1, wherein the upper end surface of the collection hopper is provided with air inlet holes along the circumferential direction.