40results about How to "Good production demand" patented technology

The invention discloses a textile printing and dyeing electronic jet drying cylinder dryer and a jet drying cylinder, waste gas heat recovery and condensate water recovery thereof and a method for setting a moisture regain reference roller. The electronic jet drying cylinder dryer consists of a heat insulating and preserving drying room, the jet drying cylinder, a heat recovery and jet system and an electronic information system, wherein exhaust air is divided into exhausted air and circulating air according to humidity of the exhaust air; heat of the exhausted air is recovered by fresh air; the fresh air is mixed with the circulating air; the heat of condensate water is then recovered and the condensate water is sprayed to a textile; heating is performed and drying conditions are improved; complete on-line detection and control are performed on temperature, tension and moisture regain of the textile and humidity, temperature and speed of an air flow; therefore, heat application efficiency and drying efficiency are increased, production cost is reduced and production requirement of high-grade textiles is met in a scientific, strict, careful and reliable drying mode. The electronic jet drying cylinder dryer can be used for substituting a drying cylinder dryer or is made by modifying the drying cylinder dryer; a waste gas heat recovery system and a condensate water recovery system are suitable for various heating production occasions; and by the method for setting the moisture regain reference roller, reliability and validity of moisture regain control are solved.

The invention discloses a method for configuring a bus bar of an aluminum electrolytic bath. The current in the electrolytic bath flows out from a power-in bus bar through a negative soft bus bar (1) to a zigzag bottom bus bar (3), a bottom through bus bar (4) and a side bus bar (5) respectively though a power-in negative bus bar, then enters a side bus bar through the zigzag bottom bus bar (3) and finally enters 4 pillar bus bars (7) of a downstream bath through the bottom through bus bar (4) and the side bus bar (5) respectively; and the current also flows out from a power-out bus bar through the negative soft bus bar (1) to the 4 pillar bus bars (7) of the downstream bath through a power-out negative bus bar (6). In the method, in an overall consideration of technology and economy and based on the configuration form of negative and positive pole numbers of the whole bath and the power-in way, a scheme for the magnetic field compensation of large aluminum electrolytic baths is more rationally designed to achieve a good magnetic field compensation effect and save the using amount of the bus bar around the baths so as to overcome the adverse factors in the conventional electrolytic baths.

The invention discloses a 5-point generatrix configuration method of a large-area inequipotential electricity type. It is composed of the cathode soft generatrix, cathode generatrix, bottom generatrix, side generatrix, lower column generatrix and electrobath. The lower column generatrix is 5-piece configuration. The invention not only can make the current passing every column appropriate and effectively reduce the magnetic field in the slot and the transverse magnetic field, but also match with every slot paramete of the large-scale slot. Especially compared with the two columns, the center columune has low current and is benefit to reduce the danger caused by the middle level magnetic field in the electrobath to make the electrobath more stable.

The invention discloses a forming die with an adjustable die cavity and belongs to the field of dies. The forming die with the adjustable die cavity comprises a support. The upper end of the support is fixedly connected with a die box, and a perpendicular movable plate is arranged in the die box. Two pairs of air cylinders are fixedly connected to the support, and the stretching and contracting ends of the air cylinders penetrate the bottom end of the die box and are fixedly connected with the perpendicular movable plate. A horizontal movable plate is arranged at the upper end of the perpendicular movable plate, and an electric push rod matched with the horizontal movable plate is fixedly connected to the side wall of the perpendicular movable plate. An auxiliary support is fixedly connected to the side wall of the die box, a sealing cover matched with the die box is connected to the upper end of the auxiliary support in a sliding manner, and three limiting pillars matched with the sealing cover are fixedly connected to the upper end of the die box. A positioning rod is connected between one limiting pillar and the auxiliary support. The size of the containing cavity of the die canbe conveniently adjusted, and the production requirements of different sizes of concrete blocks are easy to meet.

The invention relates to a halohydrin dehalogenase mutant for improving enantioselectivity and application thereof, and belongs to the technical field of enzyme engineering and biocatalysis. The halohydrin dehalogenase mutant is obtained by carrying out single-point mutation or combined mutation on 89th arginine, 137th valine, 178th proline, 179th asparagine and 187th phenylalanine in a sequence as shown in SEQ ID NO.1. Compared with wild type halohydrin dehalogenase, the mutant obtained by the invention obviously improves enantioselectivity (E value) during the preparation of (S)-o-nitrophenyl glycidyl ether, (R)-benzyl glycidyl ether and (R)-phenyl glycidyl ether, the maximum improvement is 44.6, 2.9 and 9.4 times of the original enzyme respectively, and has good industrial application prospect.

The invention discloses a special drilling machine for a two-piece tire mold. The special drilling machine for the two-piece tire mold comprises a base, a guide rail system, a rotary workbench system and a spindle system. The special drilling machine for the two-piece tire mold is characterized in that the guide rail system is mounted at the upper left end of the base, the rotary workbench system is located at the upper right end of the base and lower than the guide rail system, and the spindle system is mounted on the guide rail system. By the adoption of the technical scheme, the special drilling machine for the two-piece tire mold has the beneficial effects of having the rotating function, the load bearing function and the layer depth and radian machining function, and being capable of fully meeting production requirements, simple in structure, convenient to install and maintain, capable of relieving the labor intensity of workers and improving production efficiency, and also capable of reducing production cost and increasing production benefits.

The invention provides a flexible location mechanism of a welding top cap of a car body frame. The flexible location mechanism of the welding top cap of the car body frame comprises a base. A slippage base is arranged on the base, a location pin is arranged on the slippage base, and side body location hand grabs are arranged on the slippage base and fixed by the location pin. Pressure arms are arranged on the two sides of the location pin and through the pressure arms, the slippage base in place is fixed. Top cap of location hand grabs are arranged on the top of the slippage base. The utility rate of space is high, floor space is small, the structure is single, and breakdown is little; flexible degree of the mechanism is high, switching time is short, and precision is high; and equipment and manpower investment cost for multi-vehicle manufacture are lowered. Complicated structure switch before is evaded, the flexible degree is high, the cost is low and the utility rate of each device is improved, so that man-machine harmony and product quality are both highly promoted. Under the circumstance of low cost, an enterprise can obtain good manufacture requirements through the high-quality mechanism, flexible manufacture requirement of automobile manufacture industry nowadays is met, and the flexible location mechanism of the welding top cap of the car body frame is sure to win general consent of market.

The invention discloses a yarn feeder with the adjustable yarn feeding speed. The yarn feeder comprises an end screw, a bobbin, a driven wheel cover, a bottom plate, a driven wheel, a driving wheel, a mandrel, a coil spring, a friction plate, embedded blocks and a locking screw; one end of the mandrel is fixed on the bottom plate, and the end screw is fixed at the other end of the mandrel; the driving wheel is located in the bottom plate and rotationally installed on the mandrel; the bobbin is rotationally connected with the mandrel; one end of the bobbin is limited by the end screw, and the other end of the bobbin is fixedly connected with the driven wheel cover; the driven wheel cover is located on the outer side of the driven wheel and fixedly connected with the driven wheel; the driven wheel is rotationally mounted on the mandrel; the coil spring is arranged in the driven wheel, one end of the coil spring is fixedly connected with the driven wheel, and the other end of the coil spring is fixedly connected with the driving wheel; the plurality of embedded blocks are fixed on the bottom plate, and internal threads are formed in the embedded blocks; the friction plate is arranged at the tail end of the locking screw; and the locking screw is matched with the internal threads of the embedded blocks, and the friction plate at the tail end can make contact with the driving wheel. The yarn feeding tension and the yarn feeding speed can be manually adjusted.

The invention provides a curing device and drying equipment. The curing device comprises a shell, wherein a hollow heating cavity is formed in the shell, a heating assembly, wherein the heating assembly is arranged in the heating cavity, a conveying assembly, wherein the conveying assembly penetrates through the heating cavity in a first direction, and a conveying surface of the conveying assemblycan move in the first direction, and a containing piece, wherein the containing piece forms a hollow containing cavity, a plurality of partition pieces which are distributed at intervals in a seconddirection are arranged on the wall surface, adjacent to the containing cavity, of the containing piece, the second direction is basically perpendicular to the first direction, one end of each partition piece is connected with the wall surface, and the other end, opposite to the above-mentioned end, of each partition piece is a free end, and the containing piece is arranged on the conveying surfaceof the conveying assembly and moves in the first direction along with the conveying assembly. According to the curing device and the drying equipment, the corresponding occupied area can be effectively reduced.

The invention belongs to the technical field of steelmaking, and particularly provides a 100-400mm large-particle dolomite fettling method for a large face of a converter. The 100-400mm large-particledolomite fettling method for the large face of the converter comprises the following steps that the step (1), after steel tapping operation of the converter is finished, converter slag which has a certain fluidity and is appropriate in alkalinity is selected, and slag splashing operation is not conducted after the steel tapping operation is finished; the step (2) large-particle dolomite is pouredinto the converter through a scrap steel bucket, specifically, the material size of the dolomite ranges from 100mm to 400mm; and the step (3) after the large-particle dolomite is added to the converter, the converter is immediately shaken to be about 88-95 degrees, and remains for 8-12 minutes, after the situation that the slag face is stable and does not roll over is observed, slag splashing andfurnace protection operation is conducted, and the residual slag in the converter is completely poured away or part of the furnace slag is reserved after the slag splashing operation is accomplished.

The invention provides a tin brass welding wire. The tin brass welding wire is prepared from the following components in percentage by weight: 59%-61% of copper, 0.8%-1.0% of tin, 0.15%-0.35% of silicon and the balance of zinc. According to the tin brass welding wire and a preparation method thereof, the defects in the prior art are overcome, the machining process is very complete, the machining effect is good, the production requirement can be met conveniently, and the tensile strength is high and is improved by 20%-30% compared with a welding wire machined through a common method; and the tin brass welding wire is high in hardness, can bear large pressure, can be widely applied to brazing, copper, steel, copper-nickel alloy, gray cast iron, inlaid hard alloy cutters and the like, and canalso be used as a surfacing material for low-pressure valve seal and light-load N-grinding surfaces, the performance of welding wire products can be improved through a reasonable proportion of Sn andSi in the tin brass welding tire, the fluidity, strength and corrosion resistance of the welding wire are improved through Sn, Si controls evaporation of zinc, and air holes are eliminated.

The invention discloses a paint spraying device, and relates to the technical field of pipe machining. The device comprises a supporting assembly; the supporting assembly comprises a supporting frame. A pair of side supporting beams are horizontally fixed on the supporting frame; and the ends, facing the same direction, of the supporting beams on the two sides are connected through a middle beam. A feeding assembly, a paint spraying assembly and a drying assembly are arranged between the supporting beams on the two sides side by side in the length direction. A material conveying assembly is arranged on the middle beam. Materials are taken from the feeding assembly through the material conveying assembly, then the materials are driven by the feeding assembly to sequentially pass through the paint spraying assembly and the drying assembly, paint spraying and drying are achieved, the structural design is reasonable, use is convenient and fast, paint spraying and drying can be conducted on multiple metal pipes, the paint spraying efficiency of the metal pipes is effectively improved, and the device has high market application value.

The invention belongs to the technical field of catalyst synthesis, and particularly relates to a nitrogen-doped mesoporous carbon supported alloy nano-catalyst and application of the nitrogen-doped mesoporous carbon supported alloy nano-catalyst to preparation of cyclopentanone by catalyzing furfural high-efficiency water-phase hydrogenation. The catalyst is composed of a carrier nitrogen-doped mesoporous carbon and metals M1 and M2 loaded on the nitrogen-doped mesoporous carbon, both the metals M1 and M2 are any one of Cu, Co, Fe, Ni, Al and Zn, the loading capacity in the catalyst is 5-30%, the catalyst is prepared by an impregnation method or an in-situ one-pot method, and the catalyst has a mesoporous structure, a relatively high specific surface area and a good pore structure, and can be used for preparing the catalyst. The catalyst can be recycled for multiple times, the catalytic efficiency is not obviously reduced, the cycle performance is relatively good, and the industrial production requirements are met. The catalyst is safe, non-toxic, green, efficient, environment-friendly and harmless to human bodies, meets industrial green production requirements and has a good application prospect.

The invention discloses a fabric dyeing device with a good wetting property. The device comprises a box, a vertical partition plate is fixed between the inner walls of the box, a grouting pump is mounted at the bottom of the partition plate, a traction device fixed onto the box is arranged on the right side of the partition plate, a spouting device fixed onto the inner wall of the bottom of the box is arranged on the left side of the partition plate, and a top plate is fixed at the left end of the top of the box. According to the fabric dyeing device, spray dyeing and sizing of a fabric can beimplemented in dip dyeing, a driving direction of the fabric is opposite to a spouting direction, so that sizing effect is better, the fabric can be flushed after sizing, excessive sizing agent cannot be retained on the fabric, and actual production requirements are more effectively met.

The invention discloses a die plate for prefabricated components. The die plate comprises a movable die platform and a lower combined die plate for machining the linear prefabricated components. The lower combined die plate comprises a lower-layer die plate and a first die plate connected to one side of the lower-layer die plate, and the interval between the lower-layer die plate and the first die plate can be adjusted. The die plate is simple in structure; the length and width of the lower combined die plate can be adjusted by adjusting the position of the first die plate and the position of a second die plate, accordingly the length and width of the required prefabricated components are adjusted, and the adjustment is convenient; the production requirements of the prefabricated components with different specifications and dimensions are achieved, and the application range is wide; all the die plates can be combined according to the use requirements, the linear or L-shaped prefabricated components can be manufactured according to the requirements, the assembly and disassembly are convenient and fast, and the assembly efficiency of the L-shaped prefabricated components is improved; and rebars are embedded into the manufactured prefabricated components, the strength and the structural stability of the prefabricated components are improved greatly, the prefabricated components can be widely used in prefabricated houses, and the cost can be lowered.