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61results about How to "Sustainability" patented technology

High-temperature-resistant composite antibacterial agent and preparation method thereof

ActiveCN104855416AGood resistance to high temperature discolorationImmediate effectBiocideFungicidesPhosphoric acidSilica gel
The invention discloses a high-temperature-resistant composite antibacterial agent and a preparation method thereof, and belongs to the technical field of bactericides. The composite antibacterial agent comprises a guanidine salt antibacterial agent and inorganic additives, wherein the inorganic additives are selected from one or more of boric acid, boric oxide, zinc oxide, titanium dioxide, phosphoric acid, zeolite powder, silica gel powder, glass powder, talcum powder and hydroxyapatite. The preparation method comprises the following steps: adding a small number of volatile solvents into the guanidine salt antibacterial agent and the inorganic additives, mixing to be pasty, and uniformly grinding to obtain the high-temperature-resistant composite antibacterial agent; or dissolving the guanidine salt antibacterial agent and the inorganic additives into the solvents, and steaming and removing the solvents to obtain the high-temperature-resistant composite antibacterial agent. The composite antibacterial agent can integrate the immediate action, the broad spectrum and the continuity of an organic system with the safety and the heat resistance of an inorganic system. Compared with an undoped antibacterial agent, the high-temperature-resistant composite antibacterial agent has the advantage that the heat stability is obviously improved. Other accessory components can be added into the antibacterial agent according to specific application.
Owner:WUHAN JASON BIOTECH CO LTD

Middle driving electric spindle

The invention discloses a middle driving electric spindle. The middle driving electric spindle comprises a shell sleeve assembly, two extending sleeves and clamping sleeves, wherein the shell sleeve assembly is provided with through holes, the detachable extending sleeves are fixedly arranged at the two ends of the shell sleeve assembly, the clamping sleeves are embedded in the extending sleeves and used for clamping a work-piece, the surface of the circumference of each clamping sleeve is an oblique plane and abuts the inner wall of the corresponding extending sleeve, and a pull sleeve is connected between the two clamping sleeves; the shell sleeve assembly further comprises a box body and a seat sleeve rotationally connected to the inner portion of the box body, one end of one of the axial directions of the seat sleeve is provided with a control structure driving one of the extending sleeves to move along the axial direction; the outer wall of the other end of the seat sleeve is provided with an annular fixing connection groove, a rotor is sleeved with the fixing connection groove, and one end of the rotor abuts the side wall of the fixing connection groove; the other end of therotor abuts a water-proof ring in sleeved connection with the seat sleeve; a stator corresponding to the rotor is fixedly arranged in the box body; a driving structure is built-in, so that the structure is more compact, the transmission loss is reduced, the sealing effect of a spindle structure is effectively improved, and the service life of the spindle is greatly prolonged.
Owner:台州屹捷数控机床股份有限公司

Special air compressor system for supplying air to constant-pressure air storage source

The invention belongs to the technical field of power storage and particularly relates to a special air compressor system for supplying air to a constant-pressure air storage source. The system comprises a motor M, a water turbine G and a screw-type air compressor C which are connected sequentially and coaxially; one end of the water turbine G is connected with the bottom of a pressure vessel A bythe aid of a high-pressure liquid pipeline D2; a flow valve F is mounted on the high-pressure liquid pipeline D2; the top of the pressure vessel A is connected with an exhaust opening P3 of the screw-type air compressor C by the aid of a high-pressure air pipeline D1; the other end of the water turbine G and a water inlet P2 of the screw-type air compressor C are connected with a low-pressure reservoir B separately; and an air inlet P1 of the screw-type air compressor C is connected with the atmosphere. During operation, the screw-type air compressor C is driven by the motor M to rotate, outside air and low-pressure water flow into the air compressor to be mixed and compressed and then are sent to the pressure vessel A, meanwhile, the flow valve F is controlled to discharge high-pressurewater in the equal volume in the pressure vessel A to the water turbine G, and the water turbine G drives the screw-type air compressor C to run continuously by the aid of the high-pressure water.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)

Drill-rod fixed clamp and control method thereof

The invention relates to a drill-rod fixed clamp device for preventing blowout of oil and gas field well drilling, in particular to a drill-rod fixed clamp and a control method thereof. The drill-rod fixed clamp comprises a first fixed clamp assembly and a second fixed clamp assembly, and the first fixed clamp assembly is hinged to one end of the second fixed clamp assembly; one end of the first fixed clamp assembly is fixedly connected with a locking device, and the other end of the first fixed clamp assembly is hinged to the second fixed clamp assembly; one end of the second fixed clamp assembly is hinged to the first fixed clamp assembly, and the other end of the second fixed clamp assembly is a free end; and the locking device comprises a locking device body and a sliding part capable of sliding along the locking device body, and a groove used for placing the free end of the second fixed clamp assembly is formed between the sliding part and the locking device body. According to the drill-rod fixed clamp and the control method thereof, the first fixed clamp assembly and the locking device are fixedly connected, the locking device is arranged to be of a push-pull structure, and locking and unlocking of the second fixed clamp assembly are completed by pushing and pulling the sliding part, so that the fixed clamp assemblies and the locking device are integrated; and one-time hoisting is only needed to complete installation and removal, and installation and removal are both very convenient.
Owner:CHENGDU ZHUOXIN IND
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