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On the equipment of magnetic separation, magnetic automation and electromagnetic vibration. The main emphasis is on the requirement of various permanent magnets for various industrial applications. Collaboration between magnet manufacturers and magnet users at the early design stage will benefit both sides.
I. Magnetic Separation, Magnetic Automation and Electromagnetic Vibration
Magnetic Separation: The principal here is to use the magnetic force generated by various magnetic circuit designs to realize the physical separation of the magnetic materials from the non-magnetic materials. Magnetic separators find wide industrial applications in manufacturing process. General speaking, there are two primary functions of magnetic separation in the process industry. First is to upgrade the quality or purity of various products by removing unwanted or contaminated materials from product stream. Second is to protect downstream important and in most cases very expensive equipments from being potentially damaged by tramp metal.
Magnetic separation serves wide variety and diversified industry sections. For example: food processing, coal mining and preparation, non-ferrous mining and processing, ceramics processing, glass making, plastic manufacturing, chemical processing, paper manufacturing, cement making, pharmaceutical and biology product processing, non-ferrous recycling, tobacco, rubber, plastic industry, mining and crusher operation in aggregate plants, etc.
Magnetic separation serves a wide variety applications of industry sections, standard magnetic separators are rare. In fact, more custom-designed magnetic separators are in the market than standardized separators. A custom-designed product requires a dedicated engineering work and intensive R&D effort. This is the special feature of this industry.
Magnetic Automation: The principal here is to use magnetic force to convey parts from one place to another to realize the automatic operation in industrial scale. The typical applications are magnetic lifter, chips & parts conveyors, coolant cleaner, etc.
II. Cost of permanent magnets
Chinese magnet industry contributes wonderfully to the world-market of permanent magnets. Nowadays, the quality sintered ferrite, cast Alnico as well as rare earth permanent magnets are readily available for world at very reasonable price. More and more oversea magnet users turn their purchase orders to Chinese permanent magnets manufacturers. Majority of them enjoys high quality magnets with drastic reduction of the cost. The long leads time and quality consistence becomes, however, an issue in some cases.
As long as magnet cost is concerned, the factories who could be involved in evaluating the cost of permanent magnets for industrial applications. One is from design perspective to select the appropriate grade magnets for appropriate application. Another is from manufacturing perspective to limit the unnecessary manufacturing process for magnets.
From design perspective, this is magnet user's function in cost evaluation. The design engineer needs to know what kind of materials are in their application. This is important in selecting appropriate magnets grade to satisfy the performance required by various industrial applications. The cost for different magnet grade is different.
From manufacturing perspective, this is magnet manufacturer's function in cost evaluation. The cost of permanent magnets includes multiple manufacturing processes. By working together with the end user (particular with design engineers), the magnet manufacturers would be able to eliminate some unnecessary manufacturing process or machine (grind) certain sections of magnets to a "loose" however acceptable tolerant level, which will result in the reduction of magnet cost.
The key here is to work together, we--the permanent magnet manufacturers and you--magnet users
III. Magnet separator vendor qualification process:
Following outlines step by step evaluation process to get price from Yuxiang Magnetic Materials. Price could be offered fast after getting all following necessary information.
Parameter necessary for magnetic separator:
Working conditions listed below will of great help to choose the appropriate magnetic separator. Especially for choosing self-cleaning separators
Separator Materials Handled:
Tons per hour:_________________ Density_____________________ Lump Size:___________________ (Max.)_______________________(Min.)
Equipment to be protected:_______________________________________
Operation hours per day:_________________________________________
Transport Method: Belt Conveyor
Width: _________mm Speed: ________ m/s Trough Idlers: _____________
Max. Burden Depth: ____________ mm Head Pulley Diameter: ___________mm
Conveyor Incline: _____________Suspension Height Required: ___________mm
Cross-Belt or In-Line
Tramp Iron: ____________ Size: _________________(Max.) ______________(Min.)
Tramp Iron Shape: Hex Nut ( ) Cube ( ) Rod ( )
Plate ( ) Sphere ( )
Max. length of tramp iron to be removed:____________________________________
Working Spot Conditions: Indoor ( ) Outdoor ( )
Power Supply: __________ AC Volts __________Phase_____________ Hertz_______
Parameter necessary for Metallic Detector
THE CHARACTERISTIC OF MATERIAL
- Material name:
- Size of material (if friable), mm
- Thickness of a layer of material, mm
- Temperature of the material, centigrade (range)
- Humidity of the material (for friable product),%
THE CHARACTERISTIC OF CONVEYOR AND PROCESS
- Width of a conveyor belt
- The form of a belt (channeled, flat)
- Belt of the conveyor riveting or not
- Installation site of conveyor (in a premise, under a canopy, open conveyor)
- Temperature in an installation site,Centigrade(range)
- Humidity in an installation site, % (range)
- Speed of the conveyor, km/s
THE CHARACTERISTIC OF METAL IMPURITY WHICH NEED TO BE FOUND OUT
- Material of an impurity (steel 3, copper, aluminium, etc.)
- The sizes of a metal impurity, mm
- The form of a metal impurity (sphere etc.)
KIND OF REACTION OF THE DETECTOR ON METAL
- The sound signal system
- The light signal system
- Stop of the conveyor
- Reverser of the conveyor
- Start of the mechanism of rejection
Endless desire of mankind for a higher and better living standard is the motivation for continuous development of the industrial magnet equipment. With the rapid industrialization and modernization, there are more opportunities for us to introduce. Continuous improvement from both materials and design aspects will make innovation of magnetic equipment a fascinating working area. Collaboration between separator users and separator manufacturers requires discipline, encouragement, patience and wisdom, and after all, it is rewarding, to both sides.