42results about How to "Adjustable magnetic field strength" patented technology

The invention discloses a multifunctional magnetic grinding machine. The multifunctional magnetic grinding machine comprises a grinding cylinder, a magnetic ferrule, a main through pipe, a collection tank and a cleaning fluid tank. A coil is arranged in a hollow portion of a magnetic ferrule body and is connected with a high-frequency power source. The grinding cylinder is arranged in a ring of the magnetic ferrule. A first cylinder bottom is arranged at the bottom of the grinding cylinder, and a second cylinder bottom is arranged at the bottom of the first cylinder bottom. A plurality of supports are arranged at the bottom of the grinding cylinder. The collection tank is arranged below the grinding cylinder. The main through pipe extends into the grinding cylinder and comprises a plurality of branch pipes in the grinding cylinder. An air inlet pipe and a liquid inlet pipe are connected to the top of the main through pipe. An air inlet control valve is arranged on the air inlet pipe. A fan is connected to the end of the air inlet pipe. A heating block is arranged in the fan. A liquid inlet control valve is arranged on the liquid inlet pipe. A water pump is connected to the end of the liquid inlet pipe and is arranged at the bottom of the cleaning fluid tank. The multifunctional magnetic grinding machine has the advantages that the main through pipe extends into the grinding cylinder, a grinding needle is enabled to grind workpieces under the joint action of air flow and a magnetic field, and accordingly, grinding effect is good.

The invention relates to an overflow-discharge-type magnetic hydrocyclone. The technical scheme is that the lower end of an overflow tube (3) is positioned on the middle part or the lower part of a cylinder body (9); the upper end of a central magnetic bar (5) is welded on a port at the lower end of the overflow tube (3) through 2-4 connecting fins (4); the lower end of the central magnetic bar (5) is in flush with the lower end of an upper conical body (8), and the diameter of the central magnetic bar (5) is 0.2-0.3 times of the inner diameter of the overflow tube (3); the overflow tube (3), the connecting fins (4), the central magnetic bar (5), the upper conical body (8) and the cylinder body (9) all adopt magnetic materials; a top cover (11), an ore feeding block (10) and a lower conical body (7) all adopt nonmagnetic materials; one ends of four U-shaped iron cores wound with coils (1) are respectively welded on the outer wall of the overflow tube (3) extending out of the top cover (11), and the other ends of the four U-shaped iron cores wound with coils (1) are respectively welded on the outer wall of the cylinder body (9); and the U-shaped iron covers (2) wound with the coils are arranged in a 'cross-shaped' central symmetrical mode. The overflow-discharge-type magnetic hydrocyclone provided by the invention has the advantages of low cost, energy consumption conservation, long service life, convenience in operation, high classification efficiency and adaptability to industrial application.

The invention provides a vortex-concave air flotation machine, which has a simple structure and can generate a large number of small air bubbles, thereby effectively removing suspended matter and having a good sewage treatment effect; it includes an air flotation machine body, and the aerator is vertically arranged in contact with the air flotation machine body At the end of the area, the aerator includes a motor, a casing, and an impeller. The impeller is equipped with a blade, and the center of the blade is provided with an air inlet hole. The motor is fixed at the end of the casing, and the motor shaft of the motor is connected to one end of the rotating shaft. The pipe is provided with an air inlet, and the center of the rotating shaft is provided with an air inlet. It is a magnetic hollow impeller, the blades are helical blades, micro-pores are distributed on the blades, and stoppers are arranged at intervals on the inner wall of the air flotation machine body in the contact area; at least one ultrasonic generator is installed at the bottom of the air flotation machine body below the impeller , Dispersion blocks are provided on the bottom surface of the blade.

The invention provides a grinding device with adjustable rigidity and a using method, which includes a motor for providing power, a switch for controlling its opening is installed on the motor, and a grinding device for grinding is installed on the output shaft of the motor. wheel or grinding belt; the grinding area on the grinding wheel and grinding belt is divided into multiple layers with rubber material, the middle layer adopts a hydraulic layer or pulse layer that can generate instantaneous force, and the remaining layers are rigidities that can provide different grinding stiffnesses layer; the hydraulic layer or the pulse layer are respectively connected to the hydraulic device or the pulse device; the surface of the grinding wheel and the grinding belt is provided with a raised structure for enhancing the grinding effect, and a layer of flexible material is wrapped on its outer surface ; By changing the grinding material of the stiffness layer in real time, finely adjust the appropriate stiffness to polish the object. Compared with ordinary grinding devices, it has wider practicality and economic benefits, and better meets the grinding requirements required for production and life.

The invention discloses a lung-clearing and phlegm-eliminating device for old people, and relates to the technical field of medical instruments of a respiratory medicine department. The lung-clearingand phlegm-eliminating device for old people comprises a wearing unit, a vibrating unit and a phlegm suction unit; the wearing unit comprises a wrapping bag which surrounds the chest of a human body;bag cavities are filled with shear thickening fluid; the vibrating unit comprises a positioning plate; a plurality of inner threaded tubes are mounted on the positioning plates in the front-back direction in a penetrating manner; the rear end of an adjusting column is fixedly connected with a pressure spring; the other end of the pressure spring is fixedly connected with a knocking box; an electromagnet is fixedly mounted in the knocking box; the phlegm suction unit comprises a tool table and a negative-pressure pump; the periphery of the head of the phlegm suction tube is uniformly connectedwith rubber tubes; and the rubber tubes are filled with magnetic powder. The lung-clearing and phlegm-eliminating device for old people has the beneficial effects that by cooperation of rapid high-frequency knocking and the shear thickening fluid, a patient can be protected well and vibration is transmitted, airway stimulation is enhanced, and a phlegm-eliminating treatment effect is improved.

The invention relates to a method and device for improving the performance of a Mg2Ni type hydrogen storing alloy, and the constituent of the alloy is Mg2Ni(1-x)Mnx (x is equal to 0-0.2). The method mainly comprises the following steps of: preparing Mg2Ni(1-x)Mnx (x is equal to 0-0.2) by adopting an induction melting method; removing an oxidization layer from the cast-condition Mg2Ni(1-x)Mnx, then crushing into chips and placing into a quartz tube, laying aside the quartz tube into a vacuum belt thrower, vacuumizing and filling argon; heating to fuse the alloy, injecting from the orifice of the quartz tube into a high-speed rotating water-cooling copper roll for fast solidification under a certain pressure; applying the static magnetic field with adjustable strength during the solidification process; and grinding and screening the prepared alloy sample in a glove box under the protection of argon, thereby obtaining the needed hydrogen storing alloy. The Mg2Ni type hydrogen storing alloy prepared has higher electrochemical capacity, and the cycling performance is better improved.