Aluminum is the first non-ferrous metal, and its output is second only to steel in all metals, but its production consumes huge amounts of electricity. In 2006, China produced 9.35 million tons of electrolytic aluminum, combined AC power consumption was 1.4671 billion kwh, and the total power consumption was 137.2 billion. Kilowatts, accounting for 4.9% of the country's total electricity consumption, and the total output value of less than 1% of national GDP, so electrolytic aluminum has become a leader in high-energy-consuming industries, the power source and guaranteed supply is the lifeblood of electrolytic aluminum industry.
In recent years, with the continuous rise in coal prices and the implementation of the “energy-saving and emission reduction†policy imposed by the state to limit the implementation of high-energy-consuming industrial policies, the price of electricity in the electrolytic aluminum industry has been higher than that of ordinary electricity prices, resulting in a sharp decline in industrial profits, from a long-term development perspective. Look, the continuing trend of rising electricity prices will continue. Under this situation, actively exploring new sources of electric power sources in the electrolytic aluminum industry will have even more universal and long-term effects. Wind power generation is an important part of the new energy industry. China has abundant wind energy resources. There are abundant wind energy resources in the vast areas of the coastal areas, northeast, northwest, and inland hinterland in the hinterland of the electrolytic aluminum enterprises. Direct purchases of electricity generated by existing wind turbines are not feasible because their on-grid tariffs are much higher than the existing coal power.
The latest invention technology of combined wind power generating unit using combined wind special high-power wind generating unit is to divide multiple wind-shaped wind turbines (hereafter referred to as sub-wind turbines) in the form of long rhombuses and arrange them in parallel. Both sides of the long rhombic units located adjacent to each other may form a wind-conducting passage formed by the sub-window compartments that separate winds and affect each other to form a wind, forming a mutual gathering wind effect. However, the blades of the vertical double paddle wheel wind turbines are juxtaposed in the gathering wind passageway, so that the gathering wind force continuously and tangentially impacts the maximum moment of the paddle wheel wind wheel and pushes it to rotate to form a maximum output capacity conversion.
The “separate fan group†is composed of vertical twin paddle wheel wind wheels meshing with each other, and can be united with each other through the parallel arrangement of the units, so that several units can achieve the integrated linkage force output situation. The equipment room (separate fan cabin) can be naturally formed by two-way merging of diamond-shaped wind slopes. The sub-housing compartment is a completely fixed form facing the wind direction. Its wind method is a feature that uses the natural wind path to move back and forth in a straight line, and adapts to the overall change of the wind direction by adjusting the change of the direction of the positive and negative rotation of the paddle wheel wind wheel. The channel has a downwind effect, and the paddle wheel has no special strict requirements on the wind direction. Therefore, if the wind direction deviates from the main line direction at a small angle or so, it will not have any impact on the operation of the unit; it passes the “wind split wind, linkage output The combined effect of paddle wheel diameter, height, and blade triple design and development capability can make a single machine more than 10 megawatts to 100 megawatts high-power design become a reality, and its “umbrella paddle expansion and contraction control system†can be simple and accurate. The overall control of paddle wheel wind turbines is achieved by quickly and effectively adjusting the reach of each blade to realize the control of the start of the breeze, wind adjustment and brake force reduction, and eliminate the influence of the typhoon effectively, which is achieved through the parallel arrangement and control of multiple generator sets. The unit can make full use of the breeze and strong wind to generate electricity, which can realize integration of many new advantages such as high-power and low-cost maintenance, and can form different Grid power products.
The generated wind power is directly sent to the electrolytic aluminum enterprise. Wind power is integrated into the national public power grid. Transport is the usual practice for power transmission. However, it is technically difficult, the control is difficult to implement, the equipment costs are high, and the departments involved are numerous. In addition, compared with the power indicators of the public power grid, the power index requirements applied to the electrolytic aluminum industry are unique, such as frequency requirements, HVDC transmission, and other indicators, which can be significantly reduced, so the separate construction of wind power plants and electrolytic aluminum companies The large-scale direct transmission of power transmission between the transmission lines has many outstanding advantages and long-term benefits. The “joint wind turbine unit†with mature and perfect prospects and benefits has provided a solid technical capacity guarantee for the aforementioned scenarios. After the completion of the construction, the wind power plant can be operated under “substantially no cost†for a long time; it can make wind power available on the Internet. The price of electricity is lower than that of coal-fired electricity; and the design method of “transmitting wind power directly to the electrolytic aluminum enterprise†not only provides a more practical and feasible implementation guarantee, but also further reduces the price of electricity. China is a major producer and exporter of electrolytic aluminum. If large-scale electrolytic aluminum enterprises in China adopt wind power without any consumption and pollution emissions, it will not only be a basis for long-term huge gains, but also significantly increase product competitiveness, and can also achieve “11. V. The overall goal of energy conservation and emission reduction has made incalculable contributions.
Flap Disc
Flap disc, commonly known as flat emery
cloth wheels, emery discs, flower impellers or elastic grinding discs, are a
large variety of coated abrasive conversion products, which press the cut
coated abrasive sheets one by one. It is formed by sticking adhesive to the
back cover plate along the circumference. The flap disc are called strong
elastic grinding discs. They are made of calcined emery cloth, which uses mesh,
nylon, plastic, steel paper and other materials as the base. Attached abrasive
tools, evenly distributed in a fan shape to ensure the best grinding effect.
The particle size is 36#-320#, 60# and 80# are the most common, and the outer diameter
is 4"-7" installed on the angle grinder. Angle grinders are mainly
installed on hand-held Power Tools to polish and polish welds, burrs, chamfers,
surface rust removal, and surface polishing of various metal and non-metal
parts.
The flat emery cloth wheel (flap wheel) is
formed by sticking multiple emery cloth sheets on the tray in a fan-shaped
superimposed arrangement, and the bonding angle between each emery cloth and
the tray plane is 10°-30°. The emery cloth arrangement of the utility model can
make When the abrasive cloth wheel grinds and polishes the workpiece to be
processed, the cutting angle is optimized to ensure that the base material of
the abrasive cloth wheel and the grinding are consumed simultaneously, which
obviously improves the overall wear resistance and grinding efficiency of the
flat abrasive cloth wheel, and prolongs the service life of the abrasive cloth
wheel. Grind the surface of metallic and non-metallic materials.
product advantages:
Compared with the resin grinding wheel for
fixed abrasives, it has the advantages of polishing and polishing at one time,
shortening the operation time, saving the grinding cost, high efficiency, good
heat dissipation, high grinding efficiency, reducing operator fatigue,
increasing machine life, etc. It has strong elasticity, High tensile and
bending strength and good grinding effect. The grinding speed is fast, the
effect is good, and the noise during grinding is low. It is suitable for
various industries or fields of manufacturing such as major metal parts
factories and machinery factories. Good weather resistance, salt spray
resistance and heat resistance, suitable for use in different regions.
Scope of application:
It is suitable for polishing of stainless
steel, metal, metallurgy, automobile, wood, marble and other industries. It is
especially suitable for the processing of stainless steel and can replace the
resin-shaped grinding wheel. It has strong elasticity, high tensile and bending
strength, good self-sharpening, high grinding rate, and low noise. It is
suitable for welding seams in the box. Polishing of the edges.
There are different classifications of
louvers according to different angles. The following are two common
classifications:
According to the appearance: T27 VS T29
Flap disc generally have two shapes, curved
and flat.
The flap disc type is also called the T27
type, and the curved type generally refers to the T29 type.
The flap disc type (T27) has a flat
surface. It is mainly used to polish the flat surface and the external edges
and corners. The flap disc and the workpiece are angled during work, which can
complete the grinding and polishing at one time, reducing the work flow.
The curved surface of the curved louver
(T29) has an upward arc, which makes the T29 flap disc have a better cutting
ability on the plane. When working, the T29 type grinding wheel forms an angle
of 15° to 25° with the grinding surface, which is mainly used to deal with the
grinding of contours and edges. When there are higher requirements for speed
and cutting ability, T29 flap disc is undoubtedly the best choice.
The related abrasive products we can supply is Flap Disc Adhesive, Bonded Abrasives , and Abrasive Machine such as Flap Disc Making Machine,Abrasive Belt Making Machine, Flap Wheel Machine , Polishing Machine ,Sanding Disc Machine, if you have any needs about abrasive tools, please kindly feel free to contact us.
According to the type of abrasive
particles: ceramic alumina VS zirconium corundum VS alumina
According to the type of abrasive selected,
the flap disc can be divided into three types: ceramic alumina, zirconium
corundum and alumina.
Because ceramic alumina itself has many
crystals, it has good self-sharpening, relatively neat edges, good heat dissipation,
and long service life. Therefore, ceramic alumina louvers are mainly used for
the grinding of stainless steel, aluminum and other hard metals.
Zirconium corundum itself is a
polycrystalline crystal, with fast cutting speed, good self-sharpening, and strong
resistance to high pressure and high temperature. Therefore, zirconium corundum
louver blades have strong cutting ability and long service life.
Alumina: single crystal, the cutting ability begins to
decline at the beginning of grinding, and the abrasive grains are not easy to
break, so the alumina flap disc is suitable for the processing of common
metals.
Flap Disc,Flap Disc Machine,flap disk 4.5,Polishing Flap Disc,Sandpaper Flap Wheel
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