摘要:
A molten glass discharging device provided in the bottom of a melting furnace of a waste vitrification apparatus so that the device can control the melting or cooling of a molten material. The molten glass discharging device, which is provided in the bottom of the furnace and controls discharging of a molten material, includes: an induction heating unit (110) having a discharging passage (10) along a discharging port formed in the bottom of the melting furnace; an induction coil (120) provided outside the induction heating unit (110); and a cooling unit (130) supporting the induction heating unit (110) and having a cooling conduit through which a cooling fluid circulates. The device can realize repeated discharging of the molten material by induction heating or cooling of the induction heating unit. Further, even when glass is adhered to the discharging port, the adhered glass can be easily discharged from the furnace.
摘要:
A molten glass discharging device provided in the bottom of a melting furnace of a waste vitrification apparatus so that the device can control the melting or cooling of a molten material. The molten glass discharging device, which is provided in the bottom of the furnace and controls discharging of a molten material, includes: an induction heating unit (110) having a discharging passage (10) along a discharging port formed in the bottom of the melting furnace; an induction coil (120) provided outside the induction heating unit (110); and a cooling unit (130) supporting the induction heating unit (110) and having a cooling conduit through which a cooling fluid circulates. The device can realize repeated discharging of the molten material by induction heating or cooling of the induction heating unit. Further, even when glass is adhered to the discharging port, the adhered glass can be easily discharged from the furnace.
摘要:
An induction melting furnace having an asymmetrical sloping bottom. The melting furnace includes: an induction coil member provided on the melting furnace so as to melt waste contained in the furnace by vitrification; a bottom unit provided in a lower part of the melting furnace, the bottom unit asymmetrically sloping downward in a direction toward a glass discharge port that is formed through the bottom unit; and a cooling member integrated with the bottom unit. Due to the asymmetrical sloping bottom of the furnace, waste in the furnace can be completely melted and can be easily discharged to the outside and, accordingly, the time and cost required to treat the waste are reduced and this improves work efficiency when treating the waste. Further, due to the insulation material, the melting furnace can be protected from electric damage that may be caused by electric arc.
摘要:
Disclosed herein is a suspension apparatus and a resonance avoiding method of a drum-type washing machine. The method adjusts elastic moduli of elastic members before a drum reaches a resonance speed during a dehydration cycle of the washing machine. If the rotating speed of the drum exceeds the resonance speed, the method returns the elastic moduli of the elastic members to an initial state, thereby preventing generation of resonance.
摘要:
A method of calibrating a parameter to measure the back electromotive force (BEMF) of a voice coil motor (VCM), and a method and apparatus to use the calibrating method to perform unloading control. The calibration method includes: reading servo data and measuring a BEMF value while seeking two predetermined points on a disk, and storing the servo data and the BEMF value, generating an actual velocity curve of a head using the stored servo data, and an estimated velocity curve of the head using the stored BEMF value and adjusting a parameter related to a BEMF measurement to align the actual velocity curve of the head with the estimated velocity curve of the head.
摘要:
A damper includes: a cylinder: a piston rod inserted to be movable linearly in the cylinder; a guide member provided with a coupling hole to which an insertion portion of the rod member is coupled at a center thereof, and provided with first and second grooves at an outer circumferential surface thereof; a fixed damping member fitted into the first groove and adhered to an inner surface of the cylinder; and a movable damping member up and down movably fitted into the second groove and selectively adhered to the inner surface of the cylinder.
摘要:
A washing machine having a damper-supporter, comprises: an outer case having a receiving space therein; a tub installed in the outer case; a damper having one end connected to the tub so as to perform a relative motion; and a damper-supporter spaced from the outer case so as to be vibration-isolated therefrom, for supporting another end of the damper. Accordingly, vibration and noise can be reduced by preventing vibration of the tub from being transmitted to the outer case through the damper.
摘要:
An optimal track zero determination method used in a hard disk drive and a hard disk drive using the method. The method has the operations: (a) performing a sequential seek operation on target tracks of a disk, in units of predetermined numbers of tracks, outwardly, from a track separate from a physical track zero position obtained in a servo track write operation, by a predetermined distance toward the physical track zero position; (b) determining whether the target tracks belong to a region where a track-following operation is normally performed, and determining whether an actuator arm connected to a transducer is in contact with a mechanical buffering unit during the sequential seek operation of operation (a); and (c) selecting as a logical track zero, the target track belonging to the region where the track following operation is normally performed and the actuator arm is not in contact with the mechanical buffering unit.
摘要:
An axial flow fan for an air conditioner is disclosed. This axial flow fan is capable of changing the shape of blades by varying a design factor such as a chord length, a sweep angle, etc., generating an enough flowing amount of a fan for implementing an efficient heat radiation of a heat exchanger, and decreasing a noise which occurs during an air flowing operation of the fan, so that it is possible to implement a high efficiency and low noise fan system. The above-described axial flow fan according to the present invention includes a hub engaged to a rotary shaft of a motor, and a plurality of blades engaged to the hub, wherein assuming a coordinate which is obtained by computing a distance R in a radial direction of the blade into a distance from a radius Rh to a radius Rt at a blade tip BT based on a non-dimensional method as “r” (r=(R−Rh)/(Rt−Rh), a maximum camber ratio Hc(r) which is a ratio between a maximum camber Cmax and a chord length 1 has 0.02±0.01 at a hub BH of r=0, 0.04±0.015 at a blade tip BT of r=1, and a maximum camber ratio at a portion of r=0.6˜0.75 has a maximum value of 0.05±0.02.
摘要:
A vertical gradient freeze single crystal growing apparatus utilizing a direct monitoring furnace which is possible to obtain rapid high temperature heating and uniform temperature distribution by using direct monitoring furnace as a higher temperature part furnace provided with double quartz tube applied with gold thin film, and also capable of observing entire process of single crystal growing directly by naked eye.The apparatus includes a direct monitoring furnace corresponding to higher temperature part furnace and lower temperature part furnace mounted on vertically standing guide rails so as to be moved upwardly and downwardly voluntarily thereon simultaneously or independently, and the direct monitoring furnace is provided with heater wires divided into more than two regions to inner side of protecting quartz tube provided within double quartz tube applied with gold thin film on its interior surface and formed with cooling water in and outlets and also crystal growing reaction tube capable of normal and reverse turning is provided thereto, and a number of thermocouples are provided to the furnaces.