14results about How to "Short replacement time" patented technology

The utility model relates to a quick replacement device for a core rod support frame, which comprises a roll replacement transverse moving structure, a roll replacement transverse moving structure and a roll replacement transverse moving structure, wherein the roll replacement transverse moving structure comprises a first roll replacement transverse moving vehicle and a second roll replacement transverse moving vehicle; the rack pulling-out and pushing-in device is used for pulling out or pushing the core rod supporting frame into a rail in the rolling mill and is arranged on one side, far away from a rolling center of the rolling mill, of the first roll changing transverse moving vehicle or / and the second roll changing transverse moving vehicle; and the transition rack structure and the roller rack are arranged in a staggered mode in the axial direction of the roller, and the rack pull-out and push-in device drives the core rod supporting frame to move along the roller changing transverse moving structure, the transition rack structure and the rolling mill inner rail. The utility model solves the problem that the mandrel support frame can not be quickly replaced, the preparatory work required by the replacement of the mandrel support frame can be carried out during the working period of the rolling mill, the replacement of the mandrel support frame can be completed during the replacement period of the roller rack, the rack replacement time is shortened, the downtime of the rolling mill is reduced, and the production efficiency is improved. And the rack replacement efficiency and the production efficiency are improved.

The invention discloses a horizontal full-diameter bidirectional eccentric hemispherical valve, comprising a valve body, an eccentric hemispherical valve arranged in a valve cavity of the valve body, an inlet end and an outlet end arranged at the left and right ends of the valve body, a floating valve seat arranged at the outlet end, a main sealing ring and a ball crown arranged on the eccentric hemispherical valve, a sealing pair formed by the floating valve seat and the main sealing ring, a first pressure chamber arranged between the inner side of the main sealing ring and the eccentric hemispherical valve, and a second pressure chamber arranged between the end face of the floating valve seat and the valve body. The front and rear ends of the eccentric hemispherical valve are respectively connected with a front valve stem and a rear valve stem, the eccentric hemispherical valve, the front valve stem and the rear valve stem form a valve shaft, the valve shaft is in a horizontal direction, a valve cover is arranged on the upper part of the valve body, an arc bottom matching the inner circle of the diameter is arranged at the lower end of the valve body, and the eccentric hemispherical valve forms a full-circle flow channel with the arc bottom after opening. The invention adopts a horizontal structure, has a small height, is easy to maintain by opening the cover, and realizes the online maintenance function; the flow channel is unobstructed, the water loss is small, and there is no impurity accumulation; the forward and reverse seals are suitable for circulating water and various special working conditions.

The invention relates to the technical field of ventilation equipment, in particular to energy-saving and environment-friendly ventilation equipment for a dialysis room, which comprises a case and a centrifugal fan mounted in the case, an air inlet and an air outlet are respectively formed in two ends of the case, and the output end of the centrifugal fan is communicated with the air outlet. Two through holes penetrating to the top of the machine box are formed in the bottom face of the end, close to the air inlet, of the machine box, mounting boxes are inserted into the two through holes correspondingly, a primary purification filter plate set and a high purification filter plate set are mounted in the two mounting boxes correspondingly, and ventilation openings communicating with each other are formed in the two faces, opposite to the air inlet and the air outlet, of the mounting boxes; a standby box with the bottom face communicated with the machine box is installed on the upper surface of the machine box, two replacement boxes with primary purification filter plate sets and high purification filter plate sets installed inside are arranged in the standby box, and connecting pieces are arranged on the bottom faces of the replacement boxes and the upper surface of the installation box. And a protection assembly is arranged on the bottom surface of the case, so that the replacement time of the primary purification filter plate group and the high purification filter plate group is shorter, and the replacement is more convenient.

This utility model provides a detachable toilet seat connector, relating to the field of toilet technology. It includes a toilet seat body, a toilet seat shaft on one side of the body, a connecting pin at the bottom of the shaft, a toilet seat connector at the bottom of the pin, a plug groove on one side of the pin, a central slot inside the pin, and a button-release housing at the top. The toilet seat connector has a connector mounting groove at its lower end and a threaded connector plug at its upper end. The connector plug is installed on the toilet seat connector, with a connecting groove at its front end, and the connecting pin is installed in the slot at the front end of the connector plug. A protective cover, a circular metal cover, covers the toilet seat connector. The connecting pin has a button-release housing connected to the connector plug, and the other end is connected to the toilet seat shaft connector. This device uses a snap-lock connection, making assembly and disassembly easy and quick, allowing users to easily complete the assembly and disassembly, significantly reducing the operational threshold.

The utility model discloses a hot galvanization processing structural member pre -oil removal device, specifically related to pre -oil removal device technical field, including sliding mechanism, brush mechanism and displacement assembly, the below of displacement assembly is installed with brush mechanism, and the below of brush mechanism is placed with displacement assembly, and the sliding mechanism contains screw component and limit component, and the side surface of screw component installs limit component, and the brush mechanism contains conveying assembly, installation slot and cleaning brush, and the outer wall surface of conveying assembly installs installation slot, and the below of installation slot is installed with cleaning brush, its through displacement assembly can adjust the distance between brush mechanism and the article that needs galvanizing, makes brush mechanism can carry out more accurate cleaning to the oil dirt of article surface, and because displacement assembly can adjust the vertical position of brush mechanism, can make its above brush carry out deep -level brush washing to the article of lumen article or surface hole.

The utility model discloses a fixing mechanism for a hot-pressing mark-eliminating film. The fixing mechanism comprises a material seat, the material placing position is arranged on the material seat and is used for placing a mark eliminating film and a battery cell; the jacking group is arranged in the material seat and can be used for jacking the mark eliminating film and the battery cell which are arranged on the material seat; and the guide rod is arranged above the material seat and can be used for guiding the mark eliminating film to move on the material seat. A tensioning mechanism for tensioning the mark-eliminating film is omitted, so that the phenomenon that the mark-eliminating film is in a tensioned state for a long time can be avoided, and the service life of the mark-eliminating film is prolonged; and a tensioning mechanism for tensioning the mark eliminating film is omitted, the two ends of the mark eliminating film are in an unconstrained state, and when the mark eliminating film needs to be replaced, the mark eliminating film only needs to be pulled out from the position between the material base and the guide rod, so that the mark eliminating film is easy to replace, and the replacement time is short.

The invention discloses a catalytic reaction rectifying tower and a rectifying process for preparing 1, 3-dioxopentane, and relates to the field of rectifying towers, the catalytic reaction rectifying tower comprises a distillation tower and a catalytic module, the catalytic module comprises a catalytic shell and a fixed shell, the catalytic shell can rotate in the fixed shell, the catalytic shell is connected with a plurality of catalytic assemblies, and the catalytic assemblies are connected with the fixed shell. The catalytic module comprises a plurality of catalytic assemblies, the catalytic assemblies are concentrically arranged in a circumferential mode, each catalytic assembly further comprises a catalytic tube and two catalytic covers, the two catalytic covers are in threaded connection with the two ends of the catalytic tube respectively, catalytic holes are formed in the catalytic covers, and the catalytic module further comprises two adjusting assemblies. The catalytic particles in one catalytic tube are independently replaced each time, it is guaranteed that the catalytic particles in the catalytic tubes have good catalytic efficiency, in the replacement process, other catalytic tubes can still conduct catalytic reaction, the shutdown time for replacing the catalytic particles and cleaning the catalytic tubes is shortened, and the service life of the catalytic tubes is prolonged. Catalytic particles of the catalytic tube in the inner ring of the catalytic shell can be replaced, the replacement range is large, and the adaptability is higher.

The invention discloses a single-phase direct-in type electric energy meter non-inductive replacement device and method, and belongs to the technical field of electric energy meter replacement, the single-phase direct-in type electric energy meter non-inductive replacement device comprises a shell, a live wire inlet wire, a zero wire inlet wire, a live wire outlet wire and a zero wire outlet wire extend out of the top of the shell, and the first ends of the live wire inlet wire, the zero wire inlet wire, the live wire outlet wire and the zero wire outlet wire are all connected with a detection and protection circuit; the live wire inlet second end is connected with the live wire inlet connector first end, the null wire inlet second end is connected with the null wire inlet connector first end, the live wire outlet second end is connected with the live wire outlet connector first end, and the null wire outlet second end is connected with the null wire outlet connector first end; according to the on-load and non-inductive electric energy meter, the scheme of crossing electrical equipment between the switch and the circuit breaker is adopted, power is not cut off by a user in the meter replacement process, and on-load and non-inductive replacement of the electric energy meter is achieved.

This application discloses a friction energy dissipation unit device, relating to the field of slope protection net technology. It includes a first plate, a second plate, a steel wire rope, a sleeve, and a core ring. The first plate is located below the second plate and the two are connected. The second plate has an irregularly shaped surface and symmetrical first and second energy dissipation channels. The steel wire rope has energy dissipation channels at both ends, forming a U-shaped structure. The sleeve is fitted with the U-shaped structure to form a clamping structure, which engages with the arc-shaped groove of the core ring. Under external force, the steel wire rope slides relative to the energy dissipation channels to achieve frictional energy dissipation. Some embodiments increase the constraint area through S-shaped / spiral channels or achieve secondary energy dissipation through sliding connections between the plates. The device adopts a frictional energy dissipation mode, has no irreversible deformation, is reusable, and has a detachable structure for easy maintenance. It is suitable for external force energy dissipation scenarios such as earthquakes and rockfall impacts in slope protection net systems.

The invention belongs to the technical field of environmental protection equipment, and particularly relates to a plant smoke dust absorbing and filtering device which comprises a filtering device, guide sleeves are symmetrically arranged on the upper side and the lower side of the filtering device, cleaning devices are symmetrically arranged on the front side and the rear side of the outer surface of each guide sleeve, and a basic chassis is fixedly connected to the bottom ends of the cleaning devices. And friction roller shafts are connected to four corners of the inner wall of the filter rotating belt in a rolling manner. After the device carries out filtering work for a long time, more impurities can be accumulated at filtering openings in the upper side and the lower side of a filtering rotating belt, the filtering effect becomes poor, at the moment, an operator can rotate the filtering rotating belt by 90 degrees through control machine shells on the two sides, and at the moment, the filtering openings in the front side and the rear side of the filtering rotating belt are located in the device; the filter ports on the upper side and the lower side of the filter rotating belt slide out of the device, the filter rotating belt recovers the filter capacity, the device can continue to work, the whole replacement process is simple, the replacement time is extremely short, and normal work of the device cannot be seriously delayed.

The application discloses a method for regulating material reaction rate to improve finished product rate of aluminum-tantalum intermediate alloy, and relates to the technical field of intermediate alloy materials. The specific steps comprise the following steps: mixing large-granularity tantalum pentoxide, aluminum particles and potassium chlorate to obtain first-grade material; mixing medium-granularity tantalum pentoxide, aluminum particles and potassium chlorate to obtain second-grade material; mixing small-granularity tantalum pentoxide, aluminum particles and potassium chlorate to obtain third-grade material; sequentially adding the third-grade material, the second-grade material and the first-grade material into a reaction crucible, and insulating the materials by using porous aluminum foil, then performing aluminothermic reaction, and then performing gradient cooling to obtain aluminum-tantalum alloy without loose material. The reaction rate of the materials in the crucible gradually increases from top to bottom, the problems of poor slag-ingot separation and insufficient feeding caused by long formation of alloy liquid at the end of solidification and slow backflow are solved, the formation time of the alloy liquid in the later period is shortened, the backflow feeding is accelerated, the loose and stratification defects of the aluminum-tantalum alloy ingot are reduced, and the finished product rate is improved by more than 6%.

The present application relates to bogie handling equipment technical field, provide a kind of moving device of bogie, including support framework, wheel train component and fixture structure, wheel train component includes respectively setting in the front support part and rear support part of support framework two ends, fixture structure connects support framework, front support part includes front bridge frame, setting in the hinge assembly of front bridge frame top surface middle and setting in the front support leg of front bridge frame bottom surface two sides, front bridge frame is hinged with support framework by hinge assembly, the rear support part includes two rear support legs bolted with support framework, two rear support legs and hinge assembly form three-point support structure on support framework. The bogie is transferred by lifting mode inside the moving device in the present application, lifting operation height is low, and safety is higher;Three-point stable adjustable support structure is formed by the cooperation of hinge assembly and two rear support legs, to ensure that the transfer structure is driven wheel ground under various complex road conditions, to realize the all-terrain self-adaptation of moving device under complex road conditions.