Double-Blade Saw
Abstract
Double-Blade Saw Solution
The double blade circular saw machine, with its efficient characteristics of "synchronous cutting of two saw blades and one-time formation", has become a core equipment for mining hard rocks such as granite.
Compared with single saw/chain saws, its "one-machine dual-effect" design increases cutting efficiency by over 30%, and occupies less space and is more flexible to operate. It is the main equipment for large-scale mining operation.
However, traditional double blade circular saw machine have long suffered from three major problems: high energy consumption, low stability, and poor adaptability:
High energy consumption: The annual power consumption of a single machine exceeds 120,000 kWh (72 kW/h * 2), calculated at an industrial electricity price of 0.8 RMB per kWh, the annual electricity cost exceeds 960,000 RMB, accounting for a high proportion of the total mining cost;
Frequent equipment failures: Motor frequently overloads due to the heavy saw, and the aging of the motor coil insulation layer accelerates, with an average annual downtime for maintenance of over 15 days per machine; at the same time, ordinary frequency converters, due to their low protection level, are prone to internal component short circuits caused by dust intrusion, resulting in frequent failures;
Unstable cutting quality: Ordinary frequency converters cannot sense changes in the stone quality. When cutting soft rocks, the chipping rate of the stone is high, and when cutting hard rocks, increase the wear rate of the saw blade. This combination leads to unstable quality during mining;
Voltage instable: Mines mostly use generators for power generation, and the voltage is unstable, affecting the operating efficiency of the double blade saw.
Solution
To solve the problems of the double blade circular saw, our company have a customize transformation solution of "specialized inverter + permanent magnet motor".Inverter as the core hub, it integrates the motor and the cutting system to achieve "precise energy control, intelligent rock adaptation, high efficiency energy saving, and high level protection operation".
Product Highlights
Energy conservation and cost reduction: By combine high-efficiency permanent magnet motors with specially designed inverter, and through precise energy management, the overall energy saving effect can reach 10% to 20%, reduce the cost of mining electricity.
High protection and durability: Inverter has professional dust-proof and water-proof design, with a low failure rate of key components, extending the motor lifespan, and adapt to voltage fluctuations in the mining area grid. The maintenance interval is long, and overall the maintenance cost is reduced.
High efficiency and stability: The system can achieve automatic constant power control, ensure the stability of the cutting path. The motor provides large torque and strong overload capacity, ensure strong power and long-lasting efficiency when cutting hard rocks.
Intelligent adaptation to rocks: It has a large torque output, capable of handling harder rocks. Inverter can adaptively adjust the saw blade speed and feed rate according to the hardness of the rock, achieve intelligent matching, effectively improve cutting efficiency and the yield of finished materials.
Application Cases
Solution
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