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1
2019 - 05 - 25
点击次数: 5
1. How does the Roots blower work?The three-lobe Roots blower is a two-impeller synchronous compression machine. Each three-blade rotor is supported by two bearings, and a pair of synchronous gears are used to keep the relative positions of the two rotors constant. It is a positive displacement blower with forced gas transmission characteristics. As a rotary machine, it has relatively stable working characteristics. There is a small gap between the rotor and the rotor, the rotor and the pump body, and between the rotor and the side cover. Therefore, there is no friction in the working chamber,...
2
2019 - 05 - 25
点击次数: 5
1. IntroductionThe gantry crane is a bridge type crane that is supported on the ground track by the legs on both sides of the bridge. It is also called a gantry crane. It is a kind of material transfer by lifting the vertical weight and horizontal movement of the heavy objects on the hook or other taking device. Heavy-duty lifting equipment. The gantry crane has the characteristics of high site utilization, large operating range, wide adaptability and strong versatility; it is widely used in construction engineering and bridge construction, power, shipbuilding, automobile manufacturing, metall...
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2019 - 05 - 25
点击次数: 6
The SINCR C500 560kw high-power inverter has been successfully applied to ball mills.1. User situationQinghai City ** Mining Co., Ltd. is a research and development integrated resource company controlled by Qinghai Non-ferrous Geological Survey Bureau. A set of ball mill systems is added for production needs. After research, the company's leaders decided to use SINCR 560KW inverter to modify the ball mill in order to reduce production costs and improve the operating efficiency of the ball mill system. The picture below is a live photo2. Product requirements:For a long time, the ball grinding m...
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2019 - 05 - 25
点击次数: 5
1. OverviewThe steamed bread machine is the main equipment in the current oil production, and its number is more than 100,000. The total installed capacity of the motor is 35 million kW, and the annual power consumption is over 10 billion kWh. The power consumption of the steamed bread machine accounts for about 40% of the total electricity consumption of the oil field. The operating efficiency is very low, the average operating efficiency is only 25%, the power factor is low, and the power is wasted. Therefore, the energy saving potential of the steamed bread machine is very huge, and the pet...
5
2019 - 05 - 25
点击次数: 4
1. Load characteristics:The mechanical punching machine drives the pulley to synchronize the gear to the gear through the shaft, and then uses the crankshaft to move the slider up and down to convert the curve motion into a linear motion. The load current impact is large, the inertia is large, and the load is abrupt. 2. Application requirements for the inverter:Smooth operation, simple control, and adapt to load abrupt changes. 3. Frequency conversion transformation advantages:After the transformation of the frequency converter, the impact of the large current on the power grid ...
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2019 - 05 - 25
点击次数: 3
Abstract: Variable frequency speed regulation is widely used for its excellent speed regulation and braking performance, high efficiency, high power factor and energy saving effect. The use of SINCR medium voltage frequency converters in the water supply industry can effectively extend the life of the motor and reduce the impact on the waterway.1.IntroductionThe industrial pump house of the water plant has been in full load after the pump is turned on, and the water consumption varies with production. Therefore, it is necessary to frequently start and stop the pump or use a baffle, a valve, et...
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2019 - 05 - 25
点击次数: 4
1.IntroductionIn China's ceramic industry, ball mills are used in large quantities and are indispensable important production equipment for material crushing. The ball mill generally has a large power. The system adopts simple power frequency control, requires long grinding cycle, low grinding efficiency, easy over-grinding of materials, and large power consumption per unit product, thus becoming one of the largest power-consuming devices in the ceramic industry. . At the same time, the starting current of the system is large, which has a great impact on the equipment and the power grid, resul...
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2019 - 05 - 25
点击次数: 8
1.IntroductionAt present, most of the centrifuges used in domestic sugar factories are variable-speed speed-regulating centrifuges. This type of centrifuge has a slow speed increase. The brake uses a brake brake to impact the motor, the motor is easily damaged, and the auxiliary time is long. The noise is high, which limits the increase in production capacity. Since the sugar factory is in an economically underdeveloped area, self-generated electricity, large grid voltage fluctuations, small margins, and strong seasonality of materials require equipment to maintain high productivity, high reli...
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