Description

Permanent magnet stirrer

Permanent magnet stirrer

The environmentally friendly bottom-mounted permanent magnet stirrer is widely used for non-contact stirring in the smelting process of non-ferrous metals, especially for aluminum alloy smelting furnaces, holding furnaces, alloy furnaces, tilting furnaces, double-chamber furnaces, etc.

It is an energy-saving and environmentally friendly product.

Energy saving: 15%-24%;

Increase melting rate: 13%-16%;

Reduce burning loss (scrap aluminum): 0.3%-0.8%;

The temperature difference between the upper and lower melt is 5℃-10℃;

Uniform aluminum alloy composition.

Mainly installed in the bottom of melting furnaces and holding furnaces, it is used in the melting and alloying of alloy aluminum or high-purity aluminum in the aluminum industry; and in the recycling of scrap aluminum (including aluminum chips).

Features of Permanent magnet stirrer:

⭐It adopts a unique magnetic circuit design and special high-performance magnets treated with special processes to resist high temperatures and have a long service life.

⭐It has the functions of electromagnetic stirring, forward and reverse stirring, walking, lifting, over-temperature alarm and stop and protection.

⭐The mixing, lifting and moving are all mechanically driven, which makes the work reliable, safe and environmentally friendly.

⭐Using alternating forward and reverse rotation, the speed and time can be adjusted at will, the melt vortex effect is good, and the stirring depth is 100-700mm.

⭐Simple structure, low operating cost, low power consumption, strong reliability and simple maintenance

⭐There is a lifting system at the bottom of the equipment, which can adjust the gap between the magnetic system and the furnace bottom at any time according to the height of the furnace bottom.

⭐Set up an automatic air cooling system, which can operate for a long time and has reliable performance.

⭐Equipped with a complete air cooling system, the working temperature can be controlled below 65°C.

⭐It has high working efficiency, can work continuously, and can stir multiple furnaces at different times.

⭐Equipped with an advanced remote-control system, it has a high degree of automation and is simple and convenient to operate.

⭐Shorten the smelting time, improve production efficiency by 20-50%, and reduce energy consumption by 10-30%.

Advantages:

1. Through magnetic stirring, the alloy composition of the metal melt can be achieved to be uniform.

Usually, stirring for 20 minutes can meet the composition uniformity index.

It solves the contact pollution caused by mechanical stirring and the instability of alloy composition uniformity caused by manual stirring due to factors such as skill, physical strength or work attitude.

2. Through non-contact stirring, “contamination” of the melt is reduced.

In particular, it provides reliable quality assurance for the production of high-purity aluminum and other alloys that require strict control of trace elements.

3. Stirring can be carried out when 1/3 of the melt is in the furnace, which enhances the heat exchange between the melt and unmelted solid materials. It increases the melting speed of solid materials.

Through non-contact stirring, it can increase melting efficiency by 20%, reduce energy consumption by 20%, and reduce metal burning loss by 3-5%.

4. Through stirring, the melt temperature during smelting can be made uniform, and the surface and bottom temperatures of the melt are <4 degrees, which solves the problem of overburning and oxidation caused by local overheating of the melt.

5. Stirring can make non-metallic inclusions and gases escape and improve the purity of the melt.

6. It can reduce the generation of oxidized slag because when the melt reaches above 760, the oxidation and suction of the metal intensify.

Permanent magnetic stirring can make the temperature in the melt uniform and improve the conditions for generating oxidized slag, which can generally be reduced by 20%.

It can reduce the frequency of furnace cleaning and help extend the furnace’s life.

7. The directional flow of the magnet stirrer is conducive to the accumulation of oxidized slag on the melt surface and facilitates slag removal, thus reducing the labor intensity and conditions of workers.

8. Under strong magnetic stirring, the melt is forced to flow, which increases the nucleation energy and nucleation simultaneity of crystal grains in the liquid phase, making the crystal nuclei increase uniformly, which is conducive to the refinement of the alloy structure.

9. The rotating magnetic field generated by the permanent magnet can better solve the problem of uniformity of the chemical composition of the solution.

From the principle of electromagnetic force induced by an alternating magnetic field on metal, it is known that when the rotating magnetic field of the bottom-mounted permanent magnet aluminum-liquid mixer acts on the molten aluminum, there is both a horizontal force and a vertical force;

The rotating stirring effect generated by the magnetic field can fully mix the alloy components of different specific gravity at different liquid levels in the molten aluminum liquid.

The low power consumption of the permanent magnetic stirrer and the long-time stirring mode during the melting process can ensure the uniform chemical composition of the solution.

10. As a high-tech product integrating magnetic, electrical, mechanical and hydraulic technologies, the permanent magnet stirrer adopts an extremely simple and compact overall structure.

The entire equipment consists of only two parts: the main machine and the automatic control system.

The air cooling system on the main unit of the equipment realizes automatic control and requires no maintenance, which greatly facilitates users.

Technical parameter:

Model	BSJB5Y	BSJB10Y	BSJB20Y	BSJB30Y	BSJB40Y	BSJB50Y
Overall size (mm)	2700	2800	3000	3200	6000	6000
	1300	1400	1600	1800	1600/1800	1600/1800
	1450	1450	1500	1500	1500	1500
Width of stainless steel (mm) ≥	1600	1750	1965	2160	1965/2160	1965/2160
Height stroke≤	350	350	450	450	450	450
Motor Power KW	15	15	18.5	18.5	37	37
Application furnace(T)	2-5	5-15	15-25	25-35	35-45	45-55
Alternating Current Field rate(HZ)	0-6	0-6	0-6	0-6	0-6	0-6
Weight(kg)	3700	4500	5200	5500	10500	10500