ALP380 Fixed-type Revolvable Auto Feeding Degassing and Refining Unit

ALP380 Main Application

ALP380 is a integrated multi-functional degasser forALmelt degassing and refining, with auto flux feeder, auto suction, electric baffles and rotor degassing. This model is mainly designed for especially high or deep furnaces. The system can be customized in extra height and with extra long shaft, for those large and deep furnaces. It integrates functions such as auto refining flux feeding and auto suction. The ALP280 greatly reduces labor work, raises refining flux use ratio and saves flux. It also decreases degassing and refining time, saves inert gas, cuts down consumable part loss, improves recovery rate ofALwaste and saves energy. It can achieveALrefining, hydrogen or gas degassing, and dross removal at the lowest cost and shortest time, improvingALmelt quality and lowering cost at the same time. It brings significant economic benefit in a long run.

ALP380 Mechanical and Electrical Features

1. Square Tube Support, fixed installation and 90° swing angle, system height, degassing arm length and travel range can be customized based on client’s furnaces.

2.The device consists of flux feeder, baffle lift and rotary shaft and rotor. The three major parts can be electric lifted along with the degassing arm.

3.Lift Mode: Hydraulic or chain type, suspension arm can be manually elevated for both types when power down. 

4.Eletric Control System: Touch screen+ button press operation.

5.Control Mode: Manual/Degas/Flux Feeding & Degas, switchable and One-press Auto Mode

6.Consumable Parts: Variable according to clients’ furnace depth, optional rotary shafts with diameters of φ80mm, φ100mm or φ120mm, optional high efficiency rotors with diameters of φ150mm, φ200mm or φ250mm.

7.Applicable crucible furnaces: Furnace inner diameter from φ500～φ1500mm.

8.Power: 3-phase 380V～50Hz.

9.Rotation Motor: 1.1Kw, belt driven.

10.Spindle Rotating Speed: Belt driven, from 0~800RPM, frequency convertible, touch screen setting display.

11.Degassing arm Lift Motor: 1.1Kw, dual-chain driven.

12.Baffle Lift Motor: 0.18Kw, around 10 seconds per hoist travel

13.Flux Feeder Motor: 0.37Kw, Max feeding at2kg/min, variable designs available on demand.

14.Stainless Steel Hopper Capacity: Around 10~15Kgdry refining flux.

15.Refining Gas Flow Volume: 0.25～2.5Nm3/h, adjustable.

16.Refining Gas Pressure: Gas flow meter : ≤0.5MPa, Original set pressure: 0.5MPa. Low pressure reading: ≤0.2MPa, max setting value: 0.6MPa, float meter max pressure: ≤1.0MPa, pressure excess may cause damage of the meter

17.Refining Medium: Powder or grain flux.

18.Degassing Medium: 99.996% pure industrial nitrogen or 99.99% pure industrial argon.

19.Refining & Degassing Time Setting: 0~ Limitless, adjustable. 

20.Gas Low Pressure Warning: When input gas pressure lower than 0.1Mpa, buzzer alarm and light warns and blinks for gas change.

21.Cooling Device: Equipped with specialized air cooler for motor, spinning bearing and up & down baffles to avoid over-heat damages.

22. Degassing efficiency is  around 65%, up to National Degassing Standard Level 1 tested by Vacuumed Gas Detector.

ALP380 Advantages

1.Auto flux feeding and suction, auto mixing and homogenizing, reducing manual labor work, improving refining flux usage and saving, shortening degassing and refining time, saving inert gas, reducing graphite consumption, raising recovery rate of AL waste and energy saving. It can achieveALrefining, hydrogen or gas degassing, and waste removal at the lowest cost and shortest time, improvingALmelt quality and lowering cost at the same time. It brings significant economic benefit in a long run.

2.Extra large and height structure. System can be applied to large and deep furnaces for stirring and degassing and refining.

3.Electric chain driven lift, stable, high efficiency and less maintenance, improving work efficiency and easy to replace components.

4.Simple and easy electric-control operation, multiple control modes switchable, fitting furnaces of different sizes, one-press auto mode to complete degassing and refining.

5.Low Pressure Warning: When inert gas pressure lower than 0.1Mpa, buzzer alarm and light warns and blinks for gas change.

6.When set degassing time ends, rotor stops and gas supply switches to minimum for a certain period until degassing arm elevates to upper limit then shuts down automatically. Warning light warning alerts. System shuts down when degassing arm reaches the highest limit.

7.Nitrogen and argon can be used as degassing medium. Mixed by rotation speed adjustable rotor, not onlyALmelt can fully contact and react with refining flux, but also refining and degassing time is shortened, cost is reduced and work environment is improved due to a pollution-free process.

8.Inert gas flow can be adjustable to achieve the best flow rate, not only refining and degassing effects can be improved, but also cost is reduced, quality is raised and percentage of pass yielding is increased.

9. Rotation speed can be adjusted according to different density ofALmelt for the best mixing results. Higher refining flux usage efficiency and better degassing effects can greatly reduce waste production caused by gas bubbles and impurity, substantially raising yielding rate.

10.Only refining flux and inert gases are used as medium, with no corrosion to casting ladles and crucible furnace inner parts.

11. Electric baffle plays a part as blocking and preventingALmelt from generating too large vortex, making a more stable melt surface and reducing second pollution in process.

12.Device parameters can be set operation status can be shown on touch screen. Status can be monitored through control panel at anytime.

13.Compact structure, firm and simple, with easy maintenance. Air cooling devices are set at multiple positions for assurance of protection.

14.System auto-stops and warning lights auto-alerts operator after degassing.

15. Fast connectors for power source and gas circuit, easy and convenient.

16. The system is equipped with manual lift handle. Degassing arm can be lifted manually for sudden power failure, avoiding rotor being solidified in melt when power down.

17.Degassing efficiency is around 65%, as Level 1 of National Degassing Standards, tested by hydrogen detector.

ALP380 Degassing and Refining Principles

First, a vortex is created by mixing through high speed rotating degassing rotor. Then the feeder feeds powder or grain refining flux into the vortex and melt surface by set time and set quantity. Flux will be sucked into the vortex and dispersed evenly into theALmelt by mixing of the spinning graphite rotor, making flux and melt fully contact and react. Meanwhile, through specially designed degassing rotor, inert gas will be pressed into the melt and dispersed into millions of bubbles evenly in the melt. The hydrogen continuously spreads into the bubbles because of zero partial pressure of the bubble and higher partial pressure of hydrogen in melt. Nonmetallic impurity will be attached to surface of the bubbles and floats to the melt surface together with the hydrogen captured by the small bubbles and the inert gas. System can be set for feeding quantity and degassing time. Electric baffle can descend into the melt to block and prevent vortex regenerating after degassing, there for to stabilize the surface. When set degassing time ends, degassing arm will be auto-lifted to the highest limit, along with graphite shaft and rotor. Then labor removal of impurity and waste on surface is required to complete a degassing and refining procedure. This is a process of the highest automation, shortest degassing time and best degassing effect so far, suitable forALproduct manufacturers. With fixed installation and less space occupation, the system can be easily installed in casting workshops.