34results about How to "Avoid cleaning jobs" patented technology

A method of synthesizing tricyclodecenyl isobutyrate spice relates to the technical filed of fine chemical engineering synthesis. In the invention, with dicyclopentadiene and isobutyric acid in approximate equimolar proportion as raw materials, with zeolite-carrying phosphotungstic acid as a catalyst and with isobutyric anhydride as a protective agent, the tricyclodecenyl isobutyrate is synthesized. An acetylation reaction is directly carried out to prepare a crude product of the tricyclodecenyl isobutyrate by one step through electrophilic addition under catalysis of a catalyst. Meanwhile, a less amount of the isobutyric anhydride is added for protecting the catalyst, and then the isobutyric acid is recycled and reused so that a finish product of the tricyclodecenyl isobutyrate is obtained through neutralization washing and rectification. The method can solve problems that the spice has a sour smell in fragrance and the quality of the spice is influenced since a method in the prior art pollutes environment, is complex in post-treatment process, causes equipment corrosion and is uncooperative in ratio of isomers. The method employs the raw materials being easy to get, is mild in conditions, is high in conversion rate, is convenient to carry out, is high in yield, is less in emission of waste gas, waste water and solid waste during production and belongs to a clean production process.

The invention discloses a consumable sealing structure of a trace explosive detector based on a fluorescence quenching technology. The consumable sealing structure comprises a consumable, a light pathhousing and a consumable rear cover, wherein the consumable rear cover is connected to the light path housing; the consumable is movably inserted into the light path housing; a through hole is formedin the middle upper part of the light path housing; an axial sealing ring is arranged at one end of the through hole in a sleeving manner, and an air outlet hole is formed in the other end of the through hole; a limiting seat is arranged below the consumable rear cover; a shifting handle is arranged on the consumable rear cover; a locking mechanism is arranged at the end part of the consumable rear cover; a sealing mechanism is arranged behind the handle. The consumable sealing structure is unlocked by adopting a portable slope pushing structure, so that the mounting of the consumable is facilitated. Through the adoption of a consumable and air path integration design, the consumable comprises a complete air path structure, so that complicated air path cleaning work is avoided. The same surface of the consumable sealing structure disclosed by the invention integrates two sealing structures, namely end surface sealing and conical surface sealing, so that the sealing property is greatlyimproved.

The invention discloses a peanut leaf organization grinding system for extracting DNA, and belongs to the technical field of biotechnology. The peanut leaf organization grinding system comprises an alcohol lamp, a centrifugal tube, a liquid relief gun head and a liquid nitrogen, wherein a small end of the liquid relief gun head is provided with a circular ball after being heated and melted by the alcohol lamp; the centrifugal tube comprises a columnar section and a conical section, and the minimum diameter of the conical section is more than the diameter of the circular ball; the length of centrifugal tube is less than that of the liquid relief gun head; the circular ball formed by heating and melting the small end of the liquid relief gun head by the alcohol lamp is matched with the existing centrifugal tube; the peanut leaf organization after being cooled by the liquid nitrogen is smashed so as to directly extract DNA in the peanut leaf organization after smashing in the centrifugal tube; compared with the smashing of the peanut leaf organization realized by the mutual cooperation of a mortar and a bowl in the prior art, the waste of the peanut leaf organization during the grinding process is lightened; the peanut leaf organization grinding system is more suitable for extracting the peanut leaf organization DNA when the peanut leaf organization is few.

The invention discloses a method for rust protection of stator and rotor cores. Epoxy resin paint is sprayed on the surfaces of stator and rotor cores to be subjected to rust-proof treatment, and then solidification treatment is performed. Since the epoxy resin paint and impregnating varnish belong to paint of the same kind, and through experimental verification, a chemical reaction does not occur, cleaning of antirust paint is avoided, thereby greatly lowering the operation difficulty of rust-proof treatment, and improving the operability of a rust-proof treatment method for the stator and rotor cores.

The invention relates to an ultrasonic testing device for an aluminium alloy slab ingot. The ultrasonic testing device comprises an ultrasonic equipment support (6), a portable ultrasonic apparatus (7), a probe line (8), a water switch (11) and a pedestal (16). The ultrasonic testing device is characterized in that the pedestal comprises three support balls. The probes can divided into two types of a water-spraying type straight probe and a contact type straight probe according to functions of the probes. The ultrasonic testing device also comprises a connecting rod (9) and a steering shaft (15). With the ultrasonic testing device, conditions that a detection personnel bends down in a detecting process can be prevented through the effects of the connecting rod (9) and the steering shaft (15); fatigue of the detection personnel can be alleviated; and the ultrasonic testing device is adaptable to detection work of workpieces in different specifications. The invention also provides a method for using the ultrasonic testing device.

The invention relates to an operation nursing binding support. The support comprises an instrument tray, an elastic tape, a buckle primary body, a lifting table, a sliding groove, a supporting bar, afixing clamp, a set screw, a bed edge, an operation bed, a supporting rod, a leather cushion, a support plate, a garbage can, a buckle secondary body, a support frame, a lifting fixed shaft, a slidingblock, a garbage can sliding groove rail, a bed edge through hole, a garbage can sliding block, an upper base plate, a lifting bracket, a lower base plate and fixed brackets, and the sliding block atthe upper end of the sliding groove slides in the sliding groove; two planks fitting the end face of the sliding groove are fixed to the two ends of the sliding groove respectively, and the movementrange of the sliding block is limited; the upper portion of the sliding block is fixed to the lower base plate of the lifting table, the lifting table structurally comprises the lifting bracket, the upper base plate, the lower base plate and multiple fixed brackets, and the lifting fixed shaft is fixedly connected to the fixed bracket in the middle of the lifting table; the upper base plate in thelifting table is fixedly connected to the bottom of the support plate. Accordingly, not only is a wound of a wounded person is fixed, but also the height of the wound of the sounded person is adjusted.

The invention discloses a multifunctional water basin dish washing machine. The multifunctional water basin dish washing machine comprises an ultrasonic transducer, an ozone generator, a static sprayarm, a breather and a communication unit, wherein the ultrasonic transducer is arranged in an inner container of the dish washing machine; the ozone generator is configured on the bottom outer side ofa basin body; the static spray arm is mainly formed by fixedly connecting a front spraying part and a rear spraying part; at least one static spray arm is configured on the side wall of the basin body; the breather comprises a breather base connected with the outer side of the side wall of the basin body and a breather casing matched with the breather base for use; the communication unit comprises an air duct inlet arranged on the breather base and an air duct connected with the air duct inlet. The invention provides the multifunctional water basin dish washing machine comprising a washing power system for the dish washing machine; the multifunctional water basin dish washing machine also provides steam for realizing disinfection of cleaned tableware; the multifunctional water basin dishwashing machine provides an ultrasonic cleaning function and a spray mixed cleaning function so as to realize cleaning of fruits, vegetables and seafood; the multifunctional water basin dish washing machine is provided with the ozone generator which enables chemical bonds of organic pesticide to lose pesticide property, kill various bacteria and viruses on the surface, and remove residual pesticide in the fruits and vegetables.

The invention provides an esomeprazole sodium or omeprazole sodium content determination method. The method comprises the operation steps that: a sample requiring determination is fetched; precise weighing is carried out; an alcohol-water solution is added, such that the sample is dissolved; with a potentiometric titration method, titration is carried out by using a sulfuric acid titration solution or a hydrochloric acid titration solution, such that the content of esomeprazole sodium or omeprazole sodium is obtained. Each 1mmol of H<+> is equivalent to 36.74mg of C17H18N3NaO3S. An alcohol-water volume ratio is (20-100%):(80-0%). The alcohol is ethanol or methanol. The mass volume ratio of the sample and the alcohol-water solution is 2-10mg / ml. The detection method provided by the invention has large sudden-change value, such that the method is beneficial for titration terminal determination, and the determination of the content of esomeprazole sodium or omeprazole sodium is more accurate. Also, with the method provided by the invention, precipitation is prevented, such that subsequent cleaning work is prevented, and operation is more convenient.

The invention provides an esomeprazole sodium or omeprazole sodium content determination method. The method comprises the operation steps that: a sample requiring determination is fetched; precise weighing is carried out; an alcohol-water solution is added, such that the sample is dissolved; with a potentiometric titration method, titration is carried out by using a sulfuric acid titration solution or a hydrochloric acid titration solution, such that the content of esomeprazole sodium or omeprazole sodium is obtained. Each 1mmol of H<+> is equivalent to 36.74mg of C17H18N3NaO3S. An alcohol-water volume ratio is (20-100%):(80-0%). The alcohol is ethanol or methanol. The mass volume ratio of the sample and the alcohol-water solution is 2-10mg / ml. The detection method provided by the invention has large sudden-change value, such that the method is beneficial for titration terminal determination, and the determination of the content of esomeprazole sodium or omeprazole sodium is more accurate. Also, with the method provided by the invention, precipitation is prevented, such that subsequent cleaning work is prevented, and operation is more convenient.

The present invention relates to the field of chemical engineering. The present invention is a method for refining and purifying butanone oxime. Firstly, the inorganic phase in the toluene-butanone oxime solution is removed, and then the toluene is removed through a secondary distillation system to obtain the crude butanone oxime, and then through a After the adsorption of metal ion adsorption resin, a small amount of metal ions in the crude product of butanone oxime can be removed to prevent the carbonization and coking of the butanone oxime product under the high temperature of the thin film evaporator, thereby blocking the pipeline and affecting the evaporation efficiency, creating a new environment for the long-term operation of the evaporation equipment. Conditions, avoid frequent equipment cleaning work, help save resources, improve production efficiency; the metal ion adsorption resin of the present invention has a higher metal adsorption rate, and can reduce the content of metal ions in the butanone oxime crude product to the greatest extent.

The invention relates to a method for cultivating a macrobrachium rosenbergii offspring seed by using an aquatic ozone culture system. In the method, a square corner-cutting offspring seed culture pond with a proper area is built and macrobrachium rosenbergii is stocked at a proper density and technologies of reasonable temperature regulation and control, oxygenation measures, feed management and cultivation water body control and the like are matched. The method has the beneficial effects that the fine and standardized management is carried out on a traditional technology of cultivating the macrobrachium rosenbergii offspring seed; and in addition, due to use of the aquatic ozone culture system, the offspring seed culturing survival rate is improved, the physique of the offspring seed is enhanced, the offspring seed culturing period is shortened and the offspring seed culturing yield and economic benefit are greatly improved.

The invention belongs to the field of hardware for daily use, and particularly relates to a clamping fixing type towel rack. Towels can be fixedly clamped by the clamping fixing type towel rack. The clamping fixing type towel rack comprises a group of suckers. The suckers are connected with a wall, connectors are arranged on the suckers, and towel bars are arranged between the symmetrical connectors in a connected manner. The clamping fixing type towel rack is characterized in that connecting sleeves sleeve the towel bars, rotary shafts are arranged on the connecting sleeves, and rotatable compression bars are connected onto the rotary shafts. The clamping fixing type towel rack has the advantages that the towels which are suspended on the towel bars can be compressed, can be prevented from dropping due to external interference and accordingly can be prevented from being stained due to dropping.

The invention discloses a polishing head with a vacuum suction cup. According to the polishing head, a workpiece can be quickly and stably sucked, independent rotation can be realized, the rotation speed can be adjusted by a polishing machine, and the polishing pressure can be changed. The polishing head consists of the suction cup, a high-speed rotary joint, a vacuum hose and a vacuum generator which are connected in series in sequence. The suction cup is formed by two schemes: 1, the suction cup comprises a disk face, a disk bottom, a vacuum tube, bolts for connecting the disc face with the disc bottom, and pressing blocks of different masses, wherein the pressing blocks of different masses are combined to adjust the polishing pressure on the workpiece; 2, the suction cup comprises a disc face, a disc bottom, a positioning shaft, a vacuum tube, a positioning cylinder, a spring, a pressure regulating nut, a retainer, a limiting rack and a retainer end face ring, wherein the polishing pressure acting on the workpiece is changed by compressing the spring through the pressure regulating nut. The polishing head can be a substitute for the conventional methods for adhering the workpiece through substances such as glue and soluble wax, and is low in cost and easy to operate, and the machining efficiency and the machining precision can be improved. The polishing head can be combined with a rotary swing gravity type grinding and polishing machine for use.

The invention discloses a magnetic filtering apparatus for separating magnetized particles from a fluid. The magnetic filtering apparatus comprises a shell, a fluid channel, a collecting device, a dispelling device, an electromagnet device, a control device and a power supply device; the fluid channel is arranged at the inner front end of the shell, the shell is provided with a fluid inlet and a fluid outlet, the fluid inlet is connected with the water inlet end of the fluid channel, and the fluid outlet is connected with the water discharging end of the fluid channel; the collecting device isarranged in the shell and located at the rear end of the fluid channel; and the dispelling device is arranged at the upper end of a collecting chamber, and the dispelling device is used for dispelling the magnetic particles collected in the collecting chamber into an isolation chamber. The apparatus has a simple structure, and can switch off magnetism according to actual situations when used by replacing a traditional permanent magnet with the electromagnet device as the magnetic device for magnetic filtering in order to facilitate later maintenance.

The invention discloses a spraying system for a sink dishwasher and the sink dishwasher with the spraying system. The spraying system comprises a first solenoid valve; after being controlled by the first solenoid valve to flow through the first solenoid valve, a respirator and a water softener, a water flow flows into a water storage unit; the water storage unit is provided with a first water inlet pipe and a third water inlet pipe, the first water inlet pipe is connected with a static spraying arm arranged on the side wall of a sink body, and the third water inlet pipe is connected with a dynamic spraying arm arranged at the bottom of the sink body. The spraying system further comprises a second solenoid valve, and after being controlled by the second solenoid valve to flow through the second solenoid valve, the water flow enters the static spraying arm through a second water inlet pipe; the static spraying arm is provided with a pressurizing unit for spraying high-pressure water mist, a steam unit for spraying high-temperature steam, and an overflow opening. The invention provides the spraying system which has the benefits that water can be timely discharged out of an inner container of the machine; through multi-angle spray cleaning, washing dead corners can be covered in the washing process, and the problem of cleaning of tableware on a second shelf is solved; the pressurizing unit and the steam unit are arranged.