Molten aluminum vacuum purification holding furnace

Abstract

The invention relates to the field of heat preservation furnaces, in particular to a molten aluminum vacuum purification heat preservation furnace which is characterized in that a purification cabin is assembled in a furnace body through a driving unit, a plurality of groups of driving motors I are arranged in the purification cabin, and the driving motors I respectively drive a centrifugal unit and a rotary feeding block to rotate. According to the device, the driving unit drives the purification cabin to rotate so as to purify the upper layer of molten aluminum, the separation unit is arranged in the purification cabin to perform gas-liquid separation on the molten aluminum, gas enters the gas cabin under the high-speed centrifugal effect to be collected, the molten aluminum is accumulated in the purification cabin after degassing treatment, and after the molten aluminum is accumulated to a certain volume, the molten aluminum is separated from the gas cabin. And the movable frame realizes quick movement and resetting through a gear shaft and a toothed plate mechanism, so that the function of quickly opening and closing the liquid separation opening is achieved, the gas-liquid independent collection function of molten aluminum is realized, the generation of molten aluminum oxidation slag inclusion is reduced, gas residues in the molten aluminum are reduced, and the overall quality of the molten aluminum is improved.

Claims

1. A vacuum purification and insulation furnace for aluminum melt, comprising a furnace body (1), characterized in that: The furnace body (1) is equipped with a purification cabin (7) by a driving unit, and a plurality of driving motors (42) are arranged inside the purification cabin (7), and the driving motors (42) respectively drive the separation unit (13) and the rotating feed block (11) to rotate; A fixed feed barrel (16) is provided in the middle of the purification chamber (7), and a rotating feed block (11) is rotatably mounted on the outer wall of the fixed feed barrel (16). The rotating feed block (11) rotates to pour the aluminum liquid into the fixed feed barrel (16), and the fixed feed barrel (16) introduces the aluminum liquid into the composite hollow drive shaft (14). The composite hollow drive shaft (14) is equipped with a plurality of separation blocks (131) on the outside to form a separation unit (13), and a high-temperature air-permeable brick (133) is mounted on the inside of each separation block (131) via a movable frame (136), and the top of the high-temperature air-permeable brick (133) is in compression contact with a tightening spring (26); The movable frame (136) is provided with tooth plates (27) on both sides, the tooth plates (27) are limitedly mounted in mounting grooves (28) provided on the inner wall of the separation block (131), a tooth shaft (23) is obliquely provided in the mounting groove (28) via a deflection frame (22), the tooth shaft (23) and the tooth plate (27) are mutually meshing connection mechanisms, and when the movable frame (136) moves via the tooth shaft (23), the movable frame (136) is separated from a liquid separation port (135) provided on the inner wall of the separation block (131), and the liquid separation port (135) is connected to a material separation frame (134) on the outside; One side of the separation block (131) is connected to the gas cabin (12) via a rotating sealing cover (121); the rotating sealing cover (121) is rotatably mounted on one side of the gas cabin (12); and the top of the gas cabin (12) is connected to a chamber 1 (72) provided at the top of the purification cabin (7); and one side of the chamber 1 (72) is provided with a vacuum tube 2 (51).

2. The aluminum melt vacuum purification and holding furnace according to claim 1, characterized in that: The driving unit comprises a hydraulic cylinder assembly (4) and a second driving motor (43); the hydraulic cylinder assembly (4) is mounted on a cover (3) disposed on the upper part of the furnace body (1), and an integrated rod (41) is connected to the telescopic end thereof; a second driving motor (43) is disposed in the middle of the integrated rod (41); and an output end of the second driving motor (43) is drivingly connected to the upper wall of the purification cabin (7); A fixed cabin (9) is provided at the bottom of the integrated rod (41), and the fixed cabin (9) is docked with a docking seat (71) provided at the top of the purification cabin (7) to form chamber one (72), and the bottom of chamber one (72) is connected to the gas cabin (12).

3. The aluminum melt vacuum purification and holding furnace according to claim 1, characterized in that: A cover body (3) is provided on the upper part of the furnace body (1). A vacuum tube 1 (5) and a vacuum tube 2 (51) are arranged on the cover body (3). The vacuum tube 1 (5) is used to evacuate the interior of the furnace body (1). One end of the vacuum tube 2 (51) is connected to the interior of the fixed cabin (9).

4. The aluminum melt vacuum purification and holding furnace according to claim 1, characterized in that: A feed inlet (8) is provided on the outside of the purification chamber (7), and a stacking trough (20) is provided inside the feed inlet (8) for assembling a metal filter (21).

5. The aluminum melt vacuum purification and holding furnace according to claim 1, characterized in that: On one side inside the purification chamber (7), a fixed feed cylinder (16) is fixedly installed. A rotary feed block (11) is rotatably installed on the upper part of the fixed feed cylinder (16). A collection port (111) is provided on one side of the rotary feed block (11) to introduce molten aluminum, and a discharge port (112) is provided on the side of the rotary feed block (11) facing the fixed feed cylinder (16) to discharge molten aluminum. An inlet port two (161) is provided on the upper part of the fixed feed cylinder (16). The inlet port two (161) communicates with the inside of the cylinder body, and an inclined flow channel is provided inside the fixed feed cylinder (16), and the inclined flow channel inclines towards the composite hollow drive shaft (14).

6. The aluminum melt vacuum purification and holding furnace according to claim 1, characterized in that: One end of the composite hollow drive shaft (14) is drivingly connected to a drive motor one (42), and the other end extends into a separation chamber (10) provided inside the purification chamber (7) and is connected to the input end of a planetary gear set (15). The output end of the planetary gear set (15) is connected to the rotary feed block (11). The planetary gear set (15) includes a drive gear (151), an internal gear ring (152), planetary gears (153), a planetary disk (154), and a connecting frame (155). The drive gear (151) is installed at one end of the composite hollow drive shaft (14). An internal gear ring (152) is fixedly provided on the outer side away from the drive gear (151). A plurality of planetary gears (153) are meshingly installed between the internal gear ring (152) and the drive gear (151). One side of each planetary gear (153) is assembled on the planetary disk (154). One end of the planetary disk (154) is connected to the rotary feed block (11) through a plurality of connecting frames (155).

7. The aluminum melt vacuum purification and holding furnace according to claim 1, characterized in that: A plurality of jet nozzles (6) are provided at the bottom end inside the furnace body (1).

8. The aluminum melt vacuum purification and holding furnace according to claim 1, characterized in that: One end of the deflecting frame (22) is rotatably installed on the inner wall of the installation groove (28), and a toothed shaft (23) is rotatably provided in the middle of the deflecting frame (22). The toothed shaft (23) fits and is clamped at the upper groove of the moving frame (136) in the natural state. A coil spring (25) is provided at the rotational connection of the toothed shaft (23) and the deflecting frame (22).

9. The aluminum melt vacuum purification and holding furnace according to claim 1, characterized in that: The moving frame (136) is limited and slidably installed inside the separation block (131), and in the natural state, the moving frame (136) covers the outside of the liquid separation port (135). One side of the liquid separation port (135) communicates with a material distribution frame (134). The material distribution frame (134) is in an "n" shape, and a grid discharge port (1341) is provided at the top of the material distribution frame (134). The grid discharge port (1341) is limited and assembled in an annular liquid collection groove (18) opened on the inner wall of the separation chamber (10). A drain port (17) is opened at the bottom of the annular liquid collection groove (18) to communicate with the outside.

10. The aluminum melt vacuum purification and holding furnace according to claim 8, characterized in that: One side at the bottom of the deflecting frame (22) is provided with a bent reset strip (24). The other end of the bent reset strip (24) is connected to the inside of the separation block (131), and when the deflecting frame (22) is deflected by force, the bent reset strip (24) deforms.

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