49results about How to "Protect cleanliness" patented technology

The invention relates to a methyl alcohol purifying device which comprises a cylindrical filtering and purifying box. An opening is formed in the upper end of the filtering and purifying box. A sealing cover capable of being detached is arranged on the opening in the upper end. A gas inlet is formed in the one side of the side portion of a box body of the filtering and purifying box, and an exhaust opening is formed in the other side of the side portion of the box body. An activated carbon filtering layer, a rock cool filtering layer and a fiber filtering layer are sequentially arranged in the filtering and purifying box from the gas inlet to the exhaust opening at intervals. The gas inlet is connected with a hollow sleeve through a gas inlet pipe, and a first magnet and a second magnet are arranged in the hollow sleeve in a vertically opposite mode. The activated carbon layer, the rock cool filtering layer and the fiber filtering layer are in contact connection with the inner wall of the filtering and purifying box. According to the methyl alcohol purifying device, sulfide, other impurities and iron in methyl alcohol can be removed, therefore, the quality of the methyl alcohol can be improved in the production process of the methyl alcohol, and the cleanliness and service life of a silver catalyst are protected better.

The invention relates to a methyl alcohol filter for methyl aldehyde production. The methyl alcohol filter comprises a shell with a hollow inner cavity. The upper end of the shell is open, a sealing cover is arranged in the open position of the upper end of the shell and is provided with a gas outlet, and a gas inlet is arranged on the lower portion of the shell. A sewage outlet is arranged at the bottom of the shell. A first annular magnet, an activated carbon filtering and adsorbing layer, a filter cotton layer and a second annular magnet are sequentially arranged in the hollow inner cavity from top to bottom. The first annular magnet is spaced from the activated carbon filtering and adsorbing layer by a preset distance, and the second annular magnet is spaced from the filter cotton layer by a preset distance. When methyl alcohol is led into the filter from the gas inlet and discharged from the gas outlet, sulfide, other impurities and iron in the methyl alcohol can be removed, and therefore the methyl alcohol quality can be improved in the methyl aldehyde production process, the cleanliness of a silver catalyst can be better protected, and the service life of the silver catalyst can be guaranteed.

The invention discloses a vehicle power supply interconnection bridge power supply system. A power supply interconnection bridge device is arranged between the power supply systems of independent power supplies. The detection module of the voltage real-time signal on the power supply main circuit; the control module connected with the detection module for processing the voltage real-time signal extracted by the detection module and outputting the control signal through the output terminal; respectively connected to the output terminal of the control module and adjacent The positive terminals of the two independent power supplies are connected to the power execution module for controlling the positive terminals of two adjacent independent power supplies to be turned on and off according to the control signal output by the control module. The present invention automatically interconnects independent power supply systems in case of overload and other abnormal conditions, allocates and transmits auxiliary power to the supported independent power supply systems, and greatly improves the quality of vehicle power supply and the operation safety level of the power supply system.

The invention relates to a pressure-maintaining system applied to a transplanting container, which comprises a device and at least one transfer container arranged on the device, wherein the device is provided with at least one air inlet valve connected with an air inlet loop and at least one pressure maintaining valve connected with an exhaust loop; the transfer container is provided with an air valve corresponding to the air inlet valve and the pressure maintaining valve of the device; and the pressure maintaining valve is provided with a flow passage hole communicated with an inner space of the transplanting container, and the flow passage hole can be synchronously connected with an outer space of the transplanting container, so that the device can prevent the opening of the transplanting container from being influenced by the negative pressure which is generated because the air output is larger than the air input in the inner space of the transplanting container when the device discharges the air in the transplanting container through the pressure maintaining valve, and can prevent the surfaces of objects in the transplanting container from being injured by the strong instantaneous inlet air flow generated by negative pressure opening. The pressure-maintaining system can keep the balance of internal and external air pressures for the transplanting container in the process of air inflation and prevent the opening of the transplanting container from being influenced; besides, the pressure-maintaining system can prevent the transplanting container from generating instantaneous strong air flow during opening so as to prevent the surface and the cleanliness of a wafer or a photomask.

The invention discloses extending telescopic water pipe inner wall descaling equipment. The extending telescopic water pipe inner wall descaling equipment comprises a shell, a cleaning cavity is formed in the left side of the shell, a left threaded meshing block is fixedly arranged on the right rear side wall of the cleaning cavity, a threaded rotating shaft is rotationally arranged on the right side wall of the cleaning cavity, the threaded rotating shaft is in threaded connection with the left threaded meshing block, a groove wheel is fixedly arranged on the left side of the threaded rotating shaft, a groove is fixedly formed in the groove wheel, and a pipe rotating shaft is fixedly arranged on the left side of the groove wheel. The extending telescopic water pipe inner wall descaling equipment has the advantages that the telescopic water pipe inner wall descaling equipment can effectively extend from one end of a water pipe, continuously and automatically extend to reach a proper position to clamp the equipment, dirt accumulated on the inner wall of the water pipe for a long time is subjected to annular scraping, meanwhile, cleaning liquid is automatically splashed to the tail end of the equipment, the cleanliness of water flow in the water pipe is protected, operation is convenient and easy, the cleaning efficiency is high, the cleaning range is large, and the quality of daily water is improved.

The invention relates to hot-bending protective ink and a hot-bending polishing process of a glass cover plate. The protective ink is prepared from the following components in percentage by weight: 45-55% of silicon resin, 5-15% of aluminum oxide, 15-25% of auxiliaries, 5-15% of calcium carbonate and 5-15% of glass powder. According to the hot bending polishing process, hot bending protection printing ink is adopted, so the effect of an interlayer can be effectively achieved, the proportion of concave-convex points is reduced, mold damage is reduced, the service life of a mold is prolonged, the polishing capacity is improved, the proportion of poor polishing is reduced, and cost is saved.

The invention discloses a high-purity gas cylinder grinding and manufacturing process. The high-purity gas cylinder grinding and manufacturing process is characterized in that inner wall of the high-purity gas cylinder is mechanically repaired to the inner wall without wrinkles, bulges, lines and pits, the high-purity gas cylinder after mechanical polishing is subjected to coarse grinding and finegrinding in sequence, the roughness of the inner wall of the gas cylinder after fine grinding is not greater than 0.3 micron; a grinding device is composed of a vibrator and a grinding wheel, the grinding wheel is mounted at the end of a vibrating rod of the vibrator, the mechanical grinding machine is performed on the inner wall of the high-purity gas cylinder by adopting the grinding wheel of the grinding device, the finish of the inner wall of the high-purity gas cylinder after mechanical polishing is 14.9 to 15.1 micron. The high-purity gas cylinder grinding and manufacturing process canquickly enable the roughness of the inner wall of the gas cylinder to reach the high-purity gas filling requirement.

The invention relates to the technical field of thermal spraying materials and coatings, in particular to a preparation method of a fretting wear resistant alloy coating. The preparation method comprises the following steps of: (1) pretreating a workpiece to be sprayed; and (2) spraying the fretting wear resistant alloy coating on the pretreated workpiece by adopting a plasma arc powder spraying process. The spraying angle is 90 degrees, the arc voltage is 60-62V, the power is 30-31 kW, the spraying distance is 62-64 mm, the powder feeding amount is controlled to be 35-45 g/min, and the spraying moving speed of a spray gun is controlled to be 600mm/s. According to the process method and parameters, the anti-oxidation and cooling fog discharging method, the rapid and reliable protective shielding tool and the accurate spray gun motion control of the robot, the obtained coating has an ideal coating structure, extremely low oxide inclusion, coating bonding strength greatly higher than theindex requirement, porosity and coating hardness meeting the requirements, and coating thickness and precision meeting the requirements and controllable.

The invention discloses an antimicrobial protection film aqueous solution, which is prepared from the following ingredients in percentage by weight: 15 to 25 percent of organic antibacterial agents, 5to 21 percent of film forming agents, 7 to 11 percent of polyacrylamide, 18 to 26 percent of nonionic surfactants, 3 to 5 percent of polydimethylsiloxane, 5 to 8 percent of antifoaming agents and 35to 40 percent of positive ion water. The prepared antimicrobial protection film aqueous solution has very strong physical adsorption performance and ion exchange performance; harmful gas in the air can be effectively adsorbed and eliminated.

The invention discloses a detachable electrical equipment cabinet. The detachable electrical equipment cabinet comprises a cabinet body, wherein the cabinet body comprises a left cabinet body and a right cabinet body, a connection device is arranged between the left cabinet body and the right cabinet body, the connection device comprises a left side plate, a right side plate and a connection box, both the left side plate and the right side plate are provided with an arc groove, two end ports of the connection box are provided with a projection, the connection box is arranged between the left side plate and the right side plate, the upper end and the lower end of each of the left side plate and the right side plate are provided with a groove, the grooves are provided with a fastening chain and a tightening device matched with the grooves, the left side plate and the right side plate are also provided with a group of auxiliary ejector pins, and a damping block is arranged between two auxiliary ejector pins; and the connection box is also provided with an observation window and transparent glass. By adopting the detachable electrical equipment cabinet, the working situation of equipment inside the cabinet can be observed at any time, so that the abnormal situation inside the cabinet can be solved in time. Meanwhile, the detachable electrical equipment cabinet is good in anti-seismic, damping and denoising effects, suitable for being popularized to use and capable of meeting the actual application requirement.

The invention proposes a mask production device, which comprises an ear band welding mechanism, and the ear band welding mechanism comprises an ear band feeding device for continuously supplying ear bands to mask pieces and ear band welding equipment for welding the ear bands on the mask pieces; the ear band feeding device comprises a band supply device for conveying continuous linear ear bands tothe ear band welding equipment; and the band supply device comprises a first side supply device for supplying a first continuous linear ear band to the same side of the plurality of mask pieces, anda second side supply device for supplying a second continuous linear ear band to the other side of the plurality of mask pieces. According to the mask production device provided by the invention, theband supply device, a line folding device and the ear band welding equipment are arranged and matched with one another, so that the purpose of welding multiple mask piece ear bands at the same time isachieved, the production efficiency is greatly improved, meanwhile, the structure of the ear band welding mechanism is simple, the equipment failure rate is reduced, and great economic benefits are achieved. The invention further provides a mask production method.

The invention discloses a preparation method of hard cotton, relates to the technical field of preparation of hard cotton. and aims to solve the problem that hard cotton is not fully baked. Specifically, blended cotton is proportioned according to different ratios to form cellucotton, and the cellucotton is poured into a stirrer for rotary stirring after being weighed, so that the cellucotton is uniformly stirred; then, stirred fiberagglomerates are uniformly spread and conveyed to a licker-in device for sequential opening, the fiber agglomerates are conveyed into a secondary opening device bya fan after being strongly opened, and at the moment, the fiber agglomerates are conveyed to a cotton blending box by the fan after being subjected to secondary opening and are mixed by vibration ofa wool hopper; and then, the cotton is carded to be uniform in thickness, and uniformly distributed cotton layers are conveyed to an upper screen and are laid to form a net by a shaking screen. According to the invention, the problem that a traditional conveying belt is uneven in heating is effectively solved, meanwhile the heating area of the lapping cotton is enlarged, the heating sufficiency ofthe lapping cotton is improved, and the percent of pass of hard cotton production is guaranteed.

The invention discloses an improved disc harrow-harrow-leveler integrated device for vegetation recovery in high and cold mining areas, and relates to the technical field of ploughing devices.The improved disc harrow-harrow-leveler integrated device comprises a ploughing machine body and a concave base installed on one side of the ploughing machine body, and a plurality of second disc harrows, a plurality of first disc harrows and two pressing beams are installed on the ploughing machine body; the multiple second disc harrows and the multiple first disc harrows are arranged in a concave arc shape, the multiple second disc harrows are coaxially arranged, the multiple first disc harrows are coaxially arranged, and a lifting assembly used for adjusting the heights of the multiple second disc harrows and the multiple first disc harrows is installed on the concave base. The land ploughing device is reasonable in structure, the first disc harrow can make land easier to plough under the action of the soil breaking groove, the second disc harrow can make the ploughed land loosened, the suppression beam makes the ploughed land smoother, and it is not needed to waste manpower and material resources to plough the land many times.

The invention discloses a convenient clothes airing device. The convenient clothes airing device comprises a convenient clothes airing device body composed of a support, a hook, fixing blocks, an elastic rope and an inner connecting rod; the top of the support is rotationally connected with the bottom of the hook; the outer side of the support is fixedly connected with the outer sides of the fixing blocks; the interior of each fixing block is slidably connected with the outer side of the inner connecting rod through the elastic rope; each fixing block comprises a water permeable frame; the inner wall of each water permeable frame is slidably connected with a water permeable plate; and the top of each water permeable plate is fixedly connected with an elastic piece. The invention relates to the technical field of household articles. The convenient clothes airing device solves the problems that existing clothes hangers are all integrated, the length cannot be adjusted, when high-collar clothes are aired, due to the fact that a collar opening is relatively small, the collar opening is prone to being pulled and enlarged, deformation is caused, clothes hangers of different sizes need to be selected when different clothes are aired, inconvenience is caused, the clothes are prone to falling off in strong wind, the stability is poor and the deformation is easily caused.

The invention discloses an optical-electro-mechanical integrated clothes hanging device. The device comprises a base, universal wheels are symmetrically arranged at the bottom of the base, a supporting column is arranged on the top of the base, the supporting column is of a cavity structure, a moving mechanism is arranged in the supporting column, a fixing plate is arranged on the top of one sideof the supporting column, a linkage rod is arranged on one side of the supporting column, the bottom of the linkage rod is provided with a first base, a worm is arranged on one side of the fixing plate, the end, located on one side of the rotary motor, of the worm rod is connected with the output shaft of a first motor, one side of the fixing plate is provided with a turbine which meshes with theworm, a rotary shaft penetrates though the middle of the turbine, a rain cloth sleeves the rotary shaft, a second base is arranged on one side of the fixing plate, and the second base is connected with a first moving rod which is located below the rain cloth. The device has the advantages of simple and reasonable design, to-be-dried clothes can be prevented from being wet by rainwater, the cleanliness of the clothes is ensured, and the height of the linkage rod is conveniently adjusted to greatly improve the flexibility of the device.

The invention discloses a tissue preservation mechanism. The tissue preservation mechanism comprises a preservation box (2), wherein light curing liquid (202) is arranged in the preservation box (2). The tissue preservation mechanism further comprises a light-transmitting film (3), wherein the light-transmitting film (3) is arranged between the light curing liquid (202) and tissue (4); during storage, the light-transmitting film (3) at least partially wraps the tissue (4), and the light-transmitting film (3) and the tissue (4) are arranged in the preservation box (2) together; and identification lines and identification characters are arranged on the light-transmitting film (3). By adopting the light-transmitting film (3), the orientation of at least a part of the structural characteristics of the tissue (4) can be marked, so a user can quickly know the orientation information of the at least a part of the structural characteristics of the tissue (4) when taking the tissue next time, the next operation of the user is facilitated, and judgment time is shortened; and the tissue (4) can be prevented from being adhered to the photocuring liquid (202), so the original form of the tissue (4) is effectively protected.