Sintering and deoxidizing device for molybdenum products
By introducing automated scrapers and dust collection drawers into the sintering deoxidation unit for molybdenum products, the problem of filter clogging was solved, ensuring efficient deoxidation of molybdenum products and convenient cleaning of impurities, thus improving the service life and efficiency of the unit.
Patent Information
- Application Number
- CN202520044587.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-09
AI Technical Summary
In the existing deoxidation equipment, the filter screen is easily clogged by dust during the sintering process of molybdenum products, which affects the deoxidation effect and makes it difficult to clean impurities.
A device comprising a filter housing, a scraper, and a dust collection drawer was designed. The scraper automatically cleans the dust on the surface of the filter plate, and the scraper movement is controlled by airflow, causing impurities to slide into the dust collection drawer, thus achieving automated impurity collection.
This effectively prevents filter plate pore clogging, ensures the deoxidation efficiency of molybdenum products, reduces the difficulty of manual cleaning, and improves the long-term performance of the device.
Smart Images
Figure CN223819652U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of molybdenum product processing technology, and more specifically, it relates to a deoxidation device for sintering molybdenum products. Background Technology
[0002] Currently, molybdenum products are produced using powder metallurgy. After pressing, they need to undergo sintering. To avoid oxidation and contamination during the sintering process, existing molybdenum products generally require deoxidation treatment using a deoxidation device.
[0003] Most existing deoxidation devices typically use vacuum pumps to extract gas from the sintering equipment to deoxidize molybdenum products. However, the deoxidation device generates a large amount of dust during the sintering process. To address this, existing deoxidation devices are equipped with filters between the pipes and the sintering equipment to filter the extracted gas. However, over time, this dust adheres to the surface of the filter screen. If the impurities on the filter screen are not cleaned in time, it will cause the filter screen pores to become clogged, affecting the deoxidation effect of the deoxidation device on the molybdenum products. Summary of the Invention
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a deoxidation device for sintering molybdenum products.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A deoxidation device for sintering molybdenum products includes a sintering device and a vacuum pump. A vacuum extraction pipe is located on the left side of the sintering device, and a filter housing communicating with its interior is located at the left end of the vacuum extraction pipe. A gas delivery pipe is located at the extraction port of the vacuum pump, and the other end of the gas delivery pipe is connected to the left surface of the filter housing and communicates with its interior. A mounting plate is located on the left inner wall of the filter housing. A filter plate for filtering impurities in the gas is located between the upper surface of the mounting plate and the inner walls of the front and rear sides and the top wall of the filter housing. A push plate is located on the lower side of the mounting plate, and a movable rod is located on the upper surface of the push plate. Multiple scrapers that contact the surface of the filter plate are located on the side of the movable rod near the filter plate. A movable mechanism for controlling the up and down displacement of the push plate is located on the mounting plate. An inlet pipe is located on the right side of the sintering device, and a purification box is located at the output port of the vacuum pump. The purification box contains a purifying substance for purifying harmful gases.
[0007] The present invention is further configured such that: a funnel located below the filter plate is provided on the inner wall of the filter housing, and a dust collection drawer is slidably connected to the bottom wall of the filter housing, with the front side of the dust collection drawer slidingly extending through the outer surface of the filter housing.
[0008] The present invention is further configured such that: the movable mechanism includes a fixed plate, the fixed plate is disposed on the upper surface of the mounting plate, a rotating shaft is rotatably sleeved on the fixed plate, a fan blade is disposed at the left end of the rotating shaft, a cam is disposed at the right end of the rotating shaft, a pressing rod is disposed on the upper surface of the left side of the push plate, the upper end of the pressing rod slides through the upper surface of the mounting plate, and the upper end of the pressing rod contacts the outer surface of the cam.
[0009] The present invention is further configured such that: a limiting ring is sleeved on the outer surface of the upper end of the extrusion rod, and a support spring is movably sleeved on the outer surface of the extrusion rod between the lower surface of the limiting ring and the upper surface of the mounting plate.
[0010] The present invention is further configured such that: a rotating seat is provided on the funnel, a striking plate is rotatably connected to the rotating seat, the upper side of the striking plate is in contact with the lower surface of the pushing plate, and a striking ball in contact with the funnel is provided on the lower side of the striking plate.
[0011] The advantages of this utility model are:
[0012] Firstly, this utility model can automatically scrape off impurities attached to the surface of the filter plate, thus avoiding the problem of excessive dust on the filter plate surface causing the filter plate pores to become clogged, ensuring the long-term use effect of the filter plate, and ensuring the deoxidation efficiency during the sintering of molybdenum products.
[0013] Secondly, the active mechanism of this utility model can automatically control the striking ball to strike the funnel during operation, so that the impurities falling on the funnel can slide better into the dust collection drawer, thus avoiding the problem of excessive impurities accumulating on the funnel and ensuring the collection effect of impurities. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a deoxidation device for sintering molybdenum products according to the present invention;
[0015] Figure 2 This is a cross-sectional schematic diagram of the filter housing of this utility model;
[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle.
[0017] In the diagram: 1. Sintering equipment; 2. Inlet pipe; 3. Vacuum extraction pipe; 4. Vacuum pump; 5. Purification box; 6. Gas supply pipe; 7. Filter housing; 8. Mounting plate; 9. Filter plate; 10. Dust collection drawer; 11. Funnel; 12. Movable rod; 13. Scraper; 14. Push plate; 15. Extrusion rod; 16. Restriction ring; 17. Support spring; 18. Fixed plate; 19. Rotating shaft; 20. Fan blade; 21. Cam; 22. Rotating seat; 23. Striking plate; 24. Striking ball. Detailed Implementation
[0018] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.
[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0020] Please see Figures 1-3 The present invention provides the following technical solution:
[0021] Specifically, this refers to a deoxidation device for sintering molybdenum products, comprising a sintering device 1 and a vacuum pump 4. An inlet pipe 2 is provided on the right side of the sintering device 1, allowing inert gas to be supplied into the sintering device 1. A vacuum extraction pipe 3 is provided on the left side of the sintering device 1, with a filter housing 7 connected to its interior at the left end. A gas delivery pipe 6 is provided at the extraction port of the vacuum pump 4, with the other end of the gas delivery pipe 6 connected to the left surface of the filter housing 7 and communicating with its interior. After the molybdenum products are sintered in the sintering device 1, inert gas is supplied into the sintering device 1 through the inlet pipe 2, and simultaneously the vacuum pump 4 is activated. At this time, the vacuum extraction pipe 3 can extract the gas from the sintering device 1, placing the molybdenum products in the sintering device 1 in a deoxidized state. This deoxidizes and desulfurizes the molybdenum products, allowing harmful impurities to evaporate and separate, preventing oxidation and contamination of the parts, and ensuring the quality of the sintered molybdenum products.
[0022] An mounting plate 8 is provided on the left inner wall of the filter housing 7, and one end of the gas supply pipe 6 connected to the filter housing 7 is located on the upper side of the mounting plate 8. A filter plate 9 for filtering impurities in the gas is provided between the upper surface of the mounting plate 8 and the inner walls of the front and rear sides and the top wall of the filter housing 7. Therefore, the gas and impurities in the sintering equipment 1 enter the filter housing 7 through the vacuum extraction pipe 3. Since the gas supply pipe 6 is located between the mounting plate 8 and the filter plate 9, the gas entering the gas supply pipe 6 needs to pass through the filter plate 9 first. At this time, the filter plate 9 can filter the impurities in the gas. The filtered gas is input into the vacuum pump 4 through the gas supply pipe 6. The above structure can prevent impurities in the sintering equipment from entering the vacuum pump 4 and affecting the mechanical parts inside the vacuum pump 4, thus ensuring the deoxidation effect of the molybdenum products after sintering.
[0023] The vacuum pump 4 has a purification box 5 at its output port. The purification box 5 contains purification substances such as activated carbon for purifying harmful gases. Therefore, the gas drawn by the vacuum pump 4 is finally fed into the purification box 5 for purification before it can be discharged. This reduces the pollution of the surrounding environment caused by the sintering and deoxidation of molybdenum products.
[0024] A push plate 14 is provided on the lower side of the mounting plate 8, and a movable rod 12 is provided on the upper surface of the push plate 14. Multiple scraper strips 13 that contact the surface of the filter plate 9 are provided on the side of the movable rod 12 near the filter plate 9. The mounting plate 8 is provided with a movable mechanism to control the up and down movement of the push plate 14. Therefore, by controlling the up and down movement of the push plate 14 through the movable mechanism, the movable rod 12 can simultaneously drive the scraper strips 13 to slide on the surface of the filter plate 9, so that the dust attached to the surface of the filter plate 9 can be scraped off by the scraper strips 13. This avoids the problem of excessive dust adhering to the surface of the filter plate 9 and causing the filter pores of the filter plate 9 to be blocked, ensuring the long-term use effect of the filter plate 9 and ensuring the deoxidation efficiency during the sintering of molybdenum products.
[0025] A funnel 11 is provided on the inner wall of the filter housing 7, located below the filter plate 9. A dust collection drawer 10 is slidably connected to the bottom wall of the filter housing 7. The front side of the dust collection drawer 10 slides through the outer surface of the filter housing 7. When the impurities scraped off by the scraper 13 fall into the funnel 11, they slide down the inclined surface of the funnel 11 into the dust collection drawer 10, thereby completing the collection of impurities. When cleaning these impurities later, it is only necessary to pull out the dust collection drawer 10 for cleaning, which reduces the difficulty of cleaning impurities on the filter plate 9.
[0026] The moving mechanism includes a fixed plate 18, which is set on the upper surface of the mounting plate 8. A rotating shaft 19 is rotatably sleeved on the fixed plate 18. A fan blade 20 is set at the left end of the rotating shaft 19, and a cam 21 is set at the right end of the rotating shaft 19. When the vacuum pump 4 is drawing gas, the gas will form an airflow when it is transported through the gas delivery pipe 6. At this time, the airflow can generate a thrust on the blades of the fan blade 20, causing the fan blade 20 to drive the rotating shaft 19 to rotate, and the cam 21 rotates synchronously with the rotating shaft 19.
[0027] A pressing rod 15 is provided on the upper surface of the left side of the push plate 14. The upper end of the pressing rod 15 slides through the upper surface of the mounting plate 8. A limiting ring 16 is sleeved on the outer surface of the upper end of the pressing rod 15. A support spring 17 is movably sleeved on the outer surface of the pressing rod 15 between the lower surface of the limiting ring 16 and the upper surface of the mounting plate 8. When the support spring 17 is not compressed, the support spring 17 will exert a pushing force on the limiting ring 16, causing the pressing rod 15 to pull the push plate 14 closer to the mounting plate 8. At the same time, the upper end of the pressing rod 15 contacts the outer surface of the cam 21. Therefore, when the cam 21 rotates, the cam 21... The pressure exerted on the extrusion rod 15 causes it to move downwards. Simultaneously, the support spring 17 is stressed and contracts, causing the extrusion rod 15 to move the push plate 14 downwards. Consequently, the movable rod 12 causes the scraper 13 to move downwards on the filter plate 9. When the protruding part of the cam 21 is no longer in contact with the extrusion rod 15, the extrusion rod 15 moves upwards under the push of the support spring 17. At this time, the movable rod 12 simultaneously causes the scraper 13 to move upwards. Through the above structure, the scraper 13 can be automatically controlled by the power of the airflow to clean the impurities on the surface of the filter plate 9 without the need for manual control, thus reducing the workload of the staff.
[0028] A rotating seat 22 is provided on the funnel 11, and a striking plate 23 is rotatably connected to the rotating seat 22. The upper side of the striking plate 23 contacts the lower surface of the push plate 14, and a striking ball 24 is provided on the lower side of the striking plate 23, which contacts the funnel 11. When the push plate 14 moves downward, it will exert a pushing force on the upper side of the striking plate 23, causing the striking plate 23 to rotate counterclockwise. This causes the striking ball 24 to move upward. When the push plate 14 moves upward, the striking plate 23 is no longer restricted, and the striking ball 24 moves downward under the action of inertia. At the same time, the striking plate 23 rotates clockwise, so the striking ball 24 can strike the funnel 11. At this time, the impurities falling on the funnel 11 can slide more effectively into the dust collection drawer 10. The above structure avoids the problem of excessive impurities accumulating on the funnel 11 as much as possible, ensuring the collection effect of impurities.
[0029] The working principle of the deoxidation device for sintering molybdenum products provided by this utility model is as follows:
[0030] When the vacuum pump 4 extracts gas, the gas is transported through the gas delivery pipe 6 to form an airflow. This airflow can exert a thrust on the blades of the fan blade 20, causing the fan blade 20 to drive the rotating shaft 19 to rotate. The cam 21 rotates synchronously with the rotating shaft 19, and the cam 21 exerts a thrust on the extrusion rod 15, causing the extrusion rod 15 to move downward. At the same time, the support spring 17 is stressed and contracts, so the extrusion rod 15 drives the push plate 14 to move downward synchronously. Therefore, the movable rod 12 drives the scraper 13 to move downward on the filter plate 9. When the protruding part of the cam 21 is no longer in contact with the extrusion rod 15, the extrusion rod 15 moves upward under the push of the support spring 17. At this time, the movable rod 12 synchronously drives the scraper 13 to move upward, thereby cleaning the impurities attached to the surface of the filter plate 9.
[0031] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this application.
Claims
1. A deoxidation apparatus for sintering molybdenum products, comprising sintering equipment (1) and a vacuum pump (4), characterized in that: A vacuum extraction pipe (3) is provided on the left side of the sintering equipment (1). A filter housing (7) communicating with the interior of the vacuum extraction pipe (3) is provided at the left end of the vacuum extraction pipe (3). A gas delivery pipe (6) is provided at the extraction port of the vacuum pump (4). The other end of the gas delivery pipe (6) is connected to the left surface of the filter housing (7) and communicates with the interior of the filter housing (7). An installation plate (8) is provided on the left inner wall of the filter housing (7). A filter plate (9) for filtering impurities in the gas is provided between the upper surface of the installation plate (8) and the inner walls of the front and rear sides and the top wall of the filter housing (7). A push plate (14) is provided on the lower side of the installation plate (8). A movable rod (12) is provided on the upper surface of the push plate (14). A plurality of scrapers (13) that contact the surface of the filter plate (9) are provided on the side of the movable rod (12) near the filter plate (9). An active mechanism for controlling the up and down displacement of the push plate (14) is provided on the installation plate (8).
2. The deoxidation device for sintering molybdenum products according to claim 1, characterized in that: The sintering equipment (1) is provided with an air inlet pipe (2) on the right side, and a purification box (5) is provided at the output port of the vacuum pump (4). The purification box (5) is provided with a purification substance for purifying harmful gases.
3. The deoxidation device for sintering molybdenum products according to claim 2, characterized in that: The filter housing (7) has a funnel (11) located below the filter plate (9) on its inner wall. A dust collection drawer (10) is slidably connected to the bottom wall of the filter housing (7). The front side of the dust collection drawer (10) slides through the outer surface of the filter housing (7).
4. The deoxidation device for sintering molybdenum products according to claim 3, characterized in that: The active mechanism includes a fixed plate (18), which is set on the upper surface of the mounting plate (8). A rotating shaft (19) is rotatably sleeved on the fixed plate (18). A fan blade (20) is provided at the left end of the rotating shaft (19), and a cam (21) is provided at the right end of the rotating shaft (19).
5. The deoxidation device for sintering molybdenum products according to claim 4, characterized in that: A pressing rod (15) is provided on the upper surface of the left side of the push plate (14). The upper end of the pressing rod (15) slides through the upper surface of the mounting plate (8) and the upper end of the pressing rod (15) contacts the outer surface of the cam (21).
6. The deoxidation device for sintering molybdenum products according to claim 5, characterized in that: A limiting ring (16) is sleeved on the outer surface of the upper end of the extrusion rod (15), and a support spring (17) is movably sleeved on the outer surface of the extrusion rod (15) between the lower surface of the limiting ring (16) and the upper surface of the mounting plate (8).
7. The deoxidation device for sintering molybdenum products according to claim 6, characterized in that: The funnel (11) is provided with a rotating seat (22), and a striking plate (23) is rotatably connected to the rotating seat (22). The upper side of the striking plate (23) is in contact with the lower surface of the push plate (14), and a striking ball (24) in contact with the funnel (11) is provided on the lower side of the striking plate (23).