10results about How to "Reduce frequent replacement" patented technology

The invention belongs to the technical field of functional polymer materials and photocatalysis, and particularly relates to a preparation method and application of an antibacterial coating based on polyvinyl chloride plastics. Comprising the following steps: S1, pretreatment; s2, carrying out a reaction; s3, post-processing is carried out; s4, compounding with polyelectrolyte; and S5, preparing the coating. Through a specific catalytic cracking process, the waste PVC is converted into a functional photocatalytic antibacterial coating material, so that resource utilization and functional utilization of the waste chlorine-containing plastic are realized; a catalytic cracking process under a solvent-free condition is adopted, so that the use of an organic solvent is avoided; the coating material has relatively good photochemical stability, and can realize a relatively lasting antibacterial effect; the method has relatively low requirements on equipment, reaction conditions are easy to control, and the method is not only suitable for laboratory research, but also convenient for engineering and industrial amplification. And by combining the processing performance of the obtained coating, the technology has popularization and application potential.

This application discloses a grey water reuse treatment device, including a filtration mechanism, a reuse water tank, and a waste tank. The upper end of the filtration mechanism has a grey water zone A, which is connected to the drain outlet of a washbasin via an inlet pipe. The middle part of the filtration mechanism has a clean water zone B, which is connected to the reuse water tank via a filter suction pipe and a backwash suction pipe. The end of the filtration mechanism has a wastewater discharge zone C, which is connected to the waste tank via a wastewater discharge pipe. The grey water reuse treatment device provided by this application can effectively improve the service life of the filter by backwashing, eliminating the need for frequent filter element replacements and reducing maintenance costs. Simultaneously, the addition of a bactericide inhibits the growth of microorganisms.

The invention discloses a solid corrosion inhibition, scale inhibition and paraffin inhibition integrated agent and a preparation method thereof, and belongs to the technical field of oilfield chemistry. The preparation method comprises the following steps: carrying out acylation reaction by taking polyacrylic acid and hydroxyethyl ethylenediamine as raw materials to generate an acylated product; carrying out cyclization reaction on the acylated product to generate an imidazoline compound; the preparation method comprises the following steps: carrying out esterification reaction on an imidazoline compound and benzoic acid in the presence of a catalyst to prepare an intermediate product; the preparation method comprises the following steps: reacting epoxy chloropropane and sodium phosphate serving as raw materials to generate a chlorinated phosphating reagent; and carrying out quaternization reaction by taking the intermediate product and a chlorinated phosphating reagent as raw materials to prepare a phosphorus phenyl imidazoline quaternary ammonium salt compound, and concentrating the phosphorus phenyl imidazoline quaternary ammonium salt compound to prepare the medicament. In the agent, an imidazoline quaternary ammonium salt compound prepared by quaternization reaction is an important component for exerting a corrosion inhibition effect, and a phosphate radical group and a phenyl group which are nodular through substitution reaction are important components for exerting scale inhibition and paraffin inhibition effects. The three-proofing solid medicament has very obvious inhibition effects on corrosion, scaling and wax precipitation of metal.

The utility model relates to the technical field of wheel hub detection, in particular to a three-coordinate wheel hub detection tool which comprises two groups of connecting plates which are symmetrically arranged, nylon supporting rods are symmetrically arranged at the tops of the connecting plates, sliding blocks are symmetrically connected in the connecting plates in a sliding mode, and the nylon supporting rods are connected with the sliding blocks in a sliding mode. Pin holes are designed and machined in the two ends of the nylon supporting rod, positioning pins are inserted into the pin holes, pin holes are also formed in the top of the sliding block, the bottom ends of the positioning pins are inserted into the sliding block through the pin holes, and a driving assembly used for controlling the sliding block to slide is installed in the connecting plate. According to the three-coordinate hub detection tool provided by the utility model, the hub is supported by the nylon supporting rods, the distance between the nylon supporting rods is adjusted by the adjusting assembly, and the three-coordinate hub detection tool has the advantages that the applicability is wide, the human input and the time cost are reduced, the equipment abrasion is reduced, and the reliability and the accuracy of product quality detection are improved.

The utility model relates to the technical field of nickel carbonate production, concretely to reaction material conveying pipeline of nickel carbonate, including feed conveying subassembly and additional conveying subassembly, feed conveying subassembly includes first conveying pipe, and the top of first conveying pipe outer wall and the position close to left end are equipped with feed pipe, and first conveying pipe is equipped with detachable first wear -resistant lining pipe in, and the outer wall of first wear -resistant lining pipe is equipped with the feed port of communication with feed pipe, and the left end of first conveying pipe is equipped with anti -blocking flow guide subassembly, and additional conveying subassembly includes the second conveying pipe of communication with first conveying pipe, and second conveying pipe is equipped with detachable second wear -resistant lining pipe in. The reaction material conveying pipeline of nickel carbonate, through adopting detachable wear -resistant lining pipe, directly contacts corrosive medium and solid particles in nickel carbonate slurry, effectively resists chemical corrosion and mechanical wear and tear, greatly prolongs the service life of pipeline, reduces the frequent replacement problem of conveying pipeline due to the inner wall damage.

The utility model provides a cart for internal medicine nursing, which belongs to the technical field of medical equipment and comprises a bottom frame, universal wheels, a storage cabinet and a storage box, the universal wheels are fixed at four corners of the bottom end of the bottom frame, the storage cabinet is fixed at the top end of the bottom frame, and the storage box is mounted at the top end of the storage cabinet. The stretching structure comprises guide seats fixed to the two sides of the top end of the shell, a movable plate fixed to the top end of the sliding block, a synchronous assembly arranged at the bottom end of the movable plate, a suspension fixed to one side of the top end of the containing table, and a push handle fixed to one side of the top end of the bottom frame. According to the utility model, by pulling a group of moving plates, the synchronous rod and the cantilever drive the two moving plates to move synchronously, so that the area of the placing table is expanded, the extension function of the worktable of the device is realized, and the surface area of the worktable of the device can be expanded, so that more medical equipment and nursing materials can be accommodated; and the requirements of frequently replacing and moving articles are reduced, so that the continuity and efficiency of nursing work are improved.

The utility model relates to the technical field of mobile phone shell, concretely relates to a high strength mobile phone shell, the mobile phone shell includes the casing for containing mobile phone, the casing includes the frame and the coating that fits in the frame openwork department, the coating includes the wear -resisting layer, first fiber layer, second fiber layer and third fiber layer that set up in order from top to bottom laminated, the wear -resisting layer is used for wear -resisting scratch, first fiber layer and third fiber layer are used for promoting the strength of coating, second fiber layer is used for absorbing impact energy. The utility model aims at providing a kind of high strength mobile phone shell, through the laminated structure design of uniqueness, the combination of wear -resisting layer and multilayer fiber layer, not only promote the strength and wear resistance of mobile phone shell, but also effectively absorb impact energy, thereby in the protection mobile phone, prolong the service life of mobile phone shell.

The utility model discloses a kind of pultrusion mould, it is related to mould manufacturing technical field, the pultrusion mould includes mould body and coating layer, mould body is equipped with cavity;Coating layer includes laminatedly arranged adhesive layer, intermediate lubricating layer and wear-resistant lubricating layer, adhesive layer covers the surface of cavity.The utility model aims at improving the demoulding performance of pultrusion mould, reduce surface wear, reduce maintenance cost.

The invention discloses a vacuum air exhaust structure of a side feeding machine, which comprises a machine barrel, a first filter assembly and an air exhaust assembly, the air exhaust assembly comprises a branch air pipe connected with an air outlet of the first filter assembly, and the vacuum air exhaust structure is characterized in that the upper side and the lower side of the machine barrel are both provided with exhaust ports; the number of the first filtering assemblies is two, the first filtering assemblies are arranged in the two exhaust ports respectively, the number of the branch air pipes is two, and the air inlet ends of the branch air pipes are connected with the air outlets of the two first filtering assemblies respectively, so that an up-down confluence type flow channel is formed. The two filtering assemblies which are symmetrically arranged up and down are adopted to form a confluence type flow channel, so that gas in the machine barrel can be simultaneously pumped away from the upper direction and the lower direction, the gas pumping area is larger, the blocking time of superfine materials is effectively prolonged, and frequent replacement and cleaning of the filtering mechanism are reduced. Meanwhile, due to the super-large air exhaust characteristic of simultaneous air exhaust in the vertical direction, the machine barrel is filled with negative pressure, the materials are adsorbed into the machine barrel, and effective conveying of the screw is facilitated.

The utility model relates to the technical field of mixer, concretely relates to a multifunctional cutter set for mixer, including cutter shaft, cutter and stirring disc, the cutter includes cutter seat and two arc-shaped blades, and the stirring disc includes stirring seat and the annular array of several pieces of stirring blade fixed in the outer periphery of stirring seat, each piece of stirring blade includes parallel portion with the parallel plane of arc-shaped blade and the stirring part for stirring food material, the bottom of stirring part is opened with at least one first flow guide groove along the radial, the top of stirring part is opened with at least one second flow guide groove along the radial, and first flow guide groove and second flow guide groove are alternately distributed. The multifunctional cutter set for mixer of the utility model realizes the dual function of stirring and cutting through the double-layer structure of cutter and stirring disc, can efficiently whip egg white, cream and other light food material, can also handle vegetables and other hard food material, and the synergistic effect can realize multiple functions such as crushing, emulsification, stirring, reduces the trouble of frequently changing cutter.