66results about How to "Does not affect separation" patented technology

The invention relates to a zero dead volume capillary electrophoresis and laser induced fluorescence detection online derivatization device, in particular, a zero dead volume hollow fiber film reactor is connected behind a capillary electrophoresis separation column, a fluorescence derivatization agent enters a system through a film and directly carries out online derivatization on samples such as protein, polypeptide and the like, and a product is detected through a laser induced fluorescence detector behind the reactor. The zero dead volume capillary electrophoresis and laser induced fluorescence detection online derivatization device has the characteristics that online fluorescence derivatization is carried out on samples such as micro (even trace) proteins, polypeptide and the like by using the hollow fiber film reactor, and the defects of large sample loss, complexity in operation, long time consumption and the like in an offline derivatization process are overcome. Compared with other online reactors, the zero dead volume capillary electrophoresis and laser induced fluorescence detection online derivatization device has the advantages of small dead volume, less consumption of reagents, controllable derivatization temperature and time, low cost, multiple functions, convenience and stability for operation, and wide application prospect.

The invention relates to an air separation device for supplying cold energy for preparing liquid oxygen by utilizing liquid nitrogen backward filling. The air separation device is used for solving the technical problem of directly producing collectable liquid oxygen products by using a rectifying tower. The air separation device comprises the rectifying tower, a condensing evaporator, a liquid nitrogen storage tank, a liquid nitrogen conveying valve, a liquid nitrogen conveying pipeline, a liquid oxygen storage tank, a liquid oxygen conveying valve and a liquid oxygen conveying pipeline, wherein the rectifying tower is provided with an upper tower; the condensing evaporator is arranged in the rectifying tower; the liquid nitrogen conveying pipeline is used for conveying the liquid nitrogen to the upper tower; the liquid oxygen conveying pipeline is used for conveying liquid oxygen to the liquid oxygen storage tank; one end of the liquid nitrogen conveying pipeline is communicated with the upper tower; the other end of the liquid nitrogen conveying pipeline is communicated with the liquid nitrogen storage tank; the liquid nitrogen conveying valve is arranged on the liquid nitrogen conveying pipeline; one end of the liquid oxygen conveying pipeline is communicated with the evaporating side of the condensing evaporator; the other end of the liquid oxygen conveying pipeline is communicated with the liquid oxygen storage tank; and the liquid oxygen conveying valve is arranged on the liquid oxygen conveying pipeline.

An astronavigation stand-alone locking and releasing mechanism comprises a mounting frame and a plurality of compression bars. The mounting frame is arranged at the bottom in a spacecraft cabin. An astronavigation stand-alone is disposed in the mounting frame. Two ends of each compression bar are connected with the mounting frame through explosive bolts respectively. The astronavigation stand-alone is locked in the mounting frame. The astronavigation stand-alone locking and releasing mechanism can tightly lock the astronavigation stand-alone when the spacecraft is launched, and easily unlock the astronavigation stand-alone during in-orbit maintenance of the astronavigation stand-alone.

The invention relates to the technical field of soil sampling devices, in particular to a sampling device for soil environment detection. The sampling device comprises a sampling mechanism, the sampling mechanism comprises an inner sampling cylinder, an outer sampling cylinder and a fixing plate, the outer sampling cylinder is installed on a top plate, and the top plate is provided with a supporting mechanism used for grabbing the ground, a limiting guide mechanism used for righting the outer sampling cylinder, a driving mechanism used for driving the outer sampling cylinder to rotate up and down and a walking mechanism used for overall movement of the sampling device. According to the sampling device for soil environment detection, due to the arrangement mode of the inner sampling cylinder and the outer sampling cylinder, the sampling mechanism is higher in strength and not prone to damage; after sampling is completed, soil of soil layers with different depths can be rapidly separated; the sampling mechanism is convenient and fast to assemble, and the sampling mechanism is also very fast to install in the sampling device; and the sampling device is integrally stored and managed after being used, and parts are not easy to lose.

The invention discloses a battery tab laser cutting device. The cutting device comprises a laser head (1), a passing roller assembly (2), a cutting supporting plate (3), a dust removal cover (4) and awaste discharging mechanism (5), wherein the passing roller assembly comprises a feeding roller (21) and a discharging roller (22), the cutting supporting plate (3) is arranged between the feeding roller (21) and the discharging roller (22), a cutting opening (31) is formed in the cutting supporting plate (3), the cutting opening (31) is located on a light emitting light path of the laser head (1), the inlet end of the dust removal cover (4) is arranged at the cutting opening (31), and the waste discharging mechanism (5) is arranged at the discharging end of the cutting supporting plate (3).According to the cutting device, battery tabs can be effectively and accurately cut, the cutting process is stable, meanwhile, dust removal and wrinkle prevention can be effectively achieved, and potential safety hazards can be effectively eliminated.

A disclosed on-line sludge discharge apparatus for a crude-oil storage tank comprises a taper plate, sludge-collecting cavities and a sludge discharge pipe; the taper plate is fixedly installed at a position, keeping a certain distance from the crude-oil storage tank bottom, on the crude-oil storage tank inner wall, and the cross section of the taper plate is in the shape of a triangle zigzag; the tooth bottom of the taper plate is provided with multiple sludge settling holes, and the tooth lateral side of the taper plate is provided with multiple sludge discharge holes; the taper plate is provided with multiple installation holes; the multiple sludge-collecting cavities are respectively installed at the installation holes; the sludge discharge pipe comprises a main pipe and multiple branch pipes connected with the main pipe, and each branch pipe is installed at the corresponding sludge collecting cavity; and the outer end of the main pipe stretches out of the crude-oil storage tank, and the outer end of the main pipe is provided with an electrically operated valve and a slag slurry pump. The apparatus is simple in structure, is capable of timely removing sludge in the tank, realizes blind-angle-free sludge discharge and production-ceaseless sludge discharge at a normal production state, and mitigates burden of a sewage processing system.

The invention discloses a method for detecting the content of NDMA in a tidine drug. The method adopting liquid chromatography-mass spectrometry detection comprises the following steps: (1), separating a tidine drug sample by using liquid chromatography that adopts a hydrophilic interaction chromatographic column, and has no acid added into a pre-column mobile phase; and (2), detecting the NDMA content of the sample subjected to liquid chromatography separation in combination with mass spectrometry. According to the invention, a hydrophilic interaction chromatographic analysis method is adopted to separate the tidine component and the NDMA; acid is not added into the pre-column mobile phase, so that the tidine and the NDMA are kept in a non-ionic state to be separated, the separation timedifference between the tidine and the NDMA is 12-13 minutes; and thus the interference of tidine components on the NDMA can be completely removed, and the quantitative result is accurate. According tothe method, electrospray ionization is combined with tandem mass spectrometry, ESI is low-temperature mass spectrometry, the mass spectrometry part is non-high in resolution, and the manufacturing cost is relatively low, so that the application and popularization performance is higher, and the conversion and application prospect is good.

The invention relates to a pressure tank truck emergency cut-off device by remote control. The pressure tank truck emergency cut-off device by remote control comprises a remote controller provided with a signal transmitting antenna, a signal processing circuit board provided with a signal receiving antenna, and a solenoid valve installed on a tank truck gas source tube. The remote controller is equipped with an operation button and a reset button. The signal processing circuit board is provided with a signal amplifying circuit and a relay. The solenoid valve is controlled by the relay. A truckgas circuit gas supply port is connected to a gas storage tank via a one-way valve. The gas storage tank is connected to a pneumatic actuator via a filter pressure reducing valve and the solenoid valve on the tank truck gas source tube. The pressure tank truck emergency cut-off device by remote control, in emergency or in accident, shortens accident treatment time, and has an important effect onprevention and control of serious consequences, such as burning, explosion, pollution and poisoning, caused by leakage of the hazardous chemicals and product liable to poison.

The invention discloses early liver cancer examination equipment convenient to operate. The equipment comprises a bearing plate; a first supporting plate, an arc-shaped plate, a motor frame, a first rotating rod and a third rotating rod are fixedly connected to the bearing plate; a second rotating rod is hinged to the first supporting plate through a pin shaft; a first bevel gear and a worm are fixedly connected to the arc-shaped contour of the second rotating rod; an arc-shaped groove is formed in the arc-shaped plate; the arc-shaped plate is in limiting sliding connection with the end, away from the first supporting plate, of the second rotating rod through the arc-shaped groove; the motor is fixedly connected to the motor frame; a rotating shaft is fixedly connected to the output end of the motor; the end, away from the motor, of the rotating shaft is fixedly connected with a second bevel gear meshed with the first bevel gear; the rotating shaft and the pin shaft on the first supporting plate are located on the same axis; and a first worm gear is fixedly connected to the arc-shaped contour of the first rotating rod. By means of a sealing mechanism, when the centrifugal tube is not fully filled with blood, a sealing cover at the upper part of the centrifugal tube cannot be damaged, so that the blood separation will not be influenced.

The invention relates to the technical field of antibody separation and purification, in particular to an affine peptide and application thereof. The amino acid sequence of the affine peptide is shownas follows: Glu Top Top Tyr Cys; the affine can be combined with immune globulin for removing or separating or purifying the immune globulin, the effect is equivalent to the effect of Protein A / G, and the safety is better.

The invention discloses a magnetic separation device and method based on a transverse antipodal magnetic suspension structure, and belongs to the field of magnetic separation. The device comprises a non-magnetic base (1), a transparent non-magnetic container (2), a sliding assembly (4), a magnet assembly (5) and a fixed assembly, the magnet assembly (5) is vertically fixed on the non-magnetic base(1), can slide along the sliding assembly (4) and is locked through the fixing assembly; the magnet assembly (5) comprises two magnets which are oppositely arranged, and the transparent non-magneticcontainer (2) is arranged in the middle of the two magnets; and a hole groove is formed in the middle of the non-magnetic base (1) and used for containing the transparent non-magnetic container (2) tomove up and down in the axial direction of the non-magnetic base. The device has an open operation interval, so that the to-be-processed object and the container are easy to operate; and the result of the separation treatment is not influenced by the morphology of the to-be-treated object.

The embodiment of the present invention provides a fairing and a spacecraft, wherein the fairing includes a fairing body and a head cover connected to the fairing body; the fairing body and the head cover are separately formed; and the fairing body and the head cover are made of different materials. In the scheme of the invention, the fairing is formed by separately forming the fairing body and the head cover; the internal stress of the forming is effectively released on the basis of ensuring the overall rigidity, strength, heat resistance and overall light weight of the fairing; and the outerdimensions of the fairing are optimized to improve the overall assembly accuracy.

The invention discloses a fall-off portable holding rod, which is characterized by comprising a holding rod body consisting of two long rods, jackets arranged on the tops of the long rods, fall-off top sleeves sleeved outside the jackets, and a connecting ring which is connected with the top sleeves and used for a pulling rope to pass through, wherein a foot pad is arranged at the bottom of each long rod and connected with each long rod through a buckle ring. The fall-off portable holding rod has the advantages that: human resources are greatly saved, and time and waste in the transportation process and in the electric pole assembling process are reduced; safety, reliability and flexibility in the electric pole assembling process are enhanced; and the labor load of personnel is reduced, and actual work efficiency is improved.

The invention discloses a method for improving a polymerase chain reaction (PCR) amplification effect by utilizing uridine, and relates to the biotechnical field. The method is realized by adding a certain amount of uridine into the system on the basis of the conventional PCR amplification method. The method has a remarkable effect of optimizing the amplification, and is easy to operate and grasp.

The invention discloses an oil, gas, water and sand four-phase separation integrated device which comprises a prying seat, a crude oil inlet pipe, a first sand removal filter, a liquid inlet pump, a sand removal cyclone, a sand washing assembly, a sand discharging box, a three-phase separator and a discharging pipe assembly. The crude oil inlet pipe is fixedly arranged on the prying seat and is connected with one end of the first sand removal filter; the first sand removal filter is fixedly arranged on the prying seat, and the other end is connected with a liquid inlet of the liquid inlet pump; the liquid inlet pump is fixedly arranged on the prying seat, and a liquid outlet is connected with the sand removal cyclone; the sand removal cyclone is fixedly arranged on the prying seat and is connected with a liquid inlet in the top of a tank body of the three-phase separator; the sand washing assembly is connected with the tank body; the sand discharging box is fixedly arranged on the prying seat; the tank body is fixedly arranged on the prying seat and is connected with the discharging pipe assembly; and the discharging pipe assembly is fixedly arranged on the prying seat and is positioned outside the tank body. The three-phase separator and equipment matched with the three-phase separator are arranged on the prying seat, the structure is compact, the occupied area is small, and the space is greatly saved.

The invention discloses an anti-deformation welding device for a cage frame and a using method of the welding device. A loading plate is fixedly mounted on one side of a chassis, a positioning block is mounted on the inner side of the other side, a plurality of feeding pipes are connected between the positioning block and the loading plate in a clamped mode, a shaping block is connected to one end of the positioning block in a clamped mode, a plurality of electric push rods are fixedly mounted on one side of the chassis, and a welding gun is fixedly connected to one end of each electric push rod. According to the welding device, the cage frame can be prevented from being heated to be deformed in the welding process and after welding is completed through the arranged shaping block, a magnet arranged in the shaping block can attract the shaping block to a cage frame supporting ring, and the situation that the shaping block falls off under the influence of vibration in the moving process is prevented; welding points can be rapidly cooled through an arranged air pump, so that the welded cage frame is rapidly shaped, and the situation that the cage frame is prone to deformation and distortion due to heat generated by welding is avoided; the distribution shape of feeding holes can be changed according to production requirements, so that cage frame products of different specifications and shapes can be produced.

The invention discloses an intelligent fire control water sprinkling sprayer emergency start pipe structure, and belongs to the technical field of fire control sprayers. The intelligent fire control water sprinkling sprayer emergency start pipe structure is characterized by comprising a sprayer base, an outer cover, an emergency start pipe and a temperature sensing assembly; the sprayer base is provided with a water spraying port, a sealing base is arranged in the water spraying port, and the sealing base is reversely sealed relative to the water spraying port; the outer cover is connected with the sprayer base; the emergency start pipe is used for supporting the sealing base and provided with a plurality of water outlet holes, and a clamping and connecting piece used for clamping, connecting and fixing is arranged between the emergency start pipe and the outer cover; and the temperature sensing assembly is used for supporting and positioning the clamping and connecting piece and comprises a temperature sensing piece. The purposes that the structure is simple, cost is low, the size is small, and emergency triggering is adopted are achieved.

The invention provides a defoamer composition for pharmaceutical production, which is prepared from the following components in parts by mass: 20-60 parts of dimethyl silicone oil, 20-30 parts of polymethylsiloxane, fluorosilicone oil 2‑10 parts, 4‑8 parts of thickener, 10‑15 parts of emulsifier, 10‑100 parts of deionized water. The defoamer composition can efficiently eliminate and suppress foaming, has stable performance, less dosage, is non-toxic and environment-friendly.

The invention discloses a facial vaporizer. The facial vaporizer comprises a main machine housing (11) and a water tank (2) equipped with a first water outlet (21). The facial vaporizer is equipped with a cold-mist generation device (6) having a first water inlet (60), a second water outlet (69) and a cold mist outlet (621). The first water inlet (60) communicates with the first water outlet (21).The facial vaporizer is also equipped with a hot-mist generation device (7) having a second water inlet (71) and a hot-mist outlet (72) and a mist spray nozzle (3). The second water outlet (69) communicates with the second water inlet (71). The mist spray nozzle (3) communicates with the cold mist outlet (621) and the hot-mist outlet (72). The cold-mist generation device (6) and the hot-mist generation device (7) are fixed through a support (4) and arranged in the main machine housing (11). The facial vaporizer can offer cold mist or / hot mist in order to meet the actual application need of auser. The facial vaporizer is advantaged by being compact in structure, low in application noise and stable and reliable in operation.

The invention relates to a method for eliminating foam generated during fermentation. The method is performed by adding an edible alcohol solution with a volume concentration of 50-96% into a sprayer, and thus eliminating the foam generated during the fermentation process by spraying. The method employing alcohol spraying to eliminate the foam generated during fermentation also belongs to a method using a defoaming agent, and has the advantages that: the method can eliminate the foam quickly and thoroughly, the foam can be eliminated at once after alcohol spraying, the raw materials used in the method have no any side effect on the fermentation broth and have a bactericidal effect, the production cost is low and the operation is convenient. The method can be applied to the fermentation production of biological products (e.g. amino acid and alcohol) without influencing separation, extraction and purification of the fermentation products. As compared with the prior art, the method provided by the invention has the advantages of available raw materials (edible alcohol), low production cost, simple operation and fast elimination of foam; and in addition, the raw materials cause no environmental pollution, are unnecessary to be separated from the fermentation broth, and can prevent mixed fungi pollution during the fermentation process.

The invention discloses a solid-liquid separation device for medical chemical equipment. The solid-liquid separation device comprises a support stand, a solid-liquid separation box and a filter mechanism, wherein servo electric cylinders are symmetrically arranged on both sides of the top of a support plate, slide rails are arranged on two sides of the outer wall of the solid-liquid separation boxvertically and symmetrically arranged, and a connecting box and a fastener are arranged at the position, on the outer side of the corresponding slide rail, of one side of the outer wall of the solid-liquid separation box; the filter mechanism comprises a connecting plate and a connecting ring, a plurality of first buffer members are arranged on the top of the connecting ring, and a connecting strip matched with the connecting box is arranged at the bottom of the connecting plate; a first sliding strip is arranged at the bottom of the connecting ring, a second buffer member is arranged at thebottom of the first sliding strip, and a second sliding strip matched with a first slide rail is arranged at the bottom of the second buffer member; a first connecting block is arranged at the bottomof the outer wall of the first sliding strip, a second connecting block is disposed at the bottom of the outer wall of the second sliding strip, and a vibration motor is connected between the first connecting block and the second connecting block; and a plurality of filter plates are arranged at the bottom of the connecting ring. The solid-liquid separation device has high separation efficiency, agood effect of solid-liquid separation and convenient cleaning.

The invention provides a method for regulating and controlling brightness of nickel button appearance. The method comprises the following steps that an inorganic oxidizing agent is added into a nickel button electrolyte, and when the redox potential of the electrolyte is controlled to be 200 mv to 680 mv, the surface of the prepared nickel button is metal bright; and an inorganic reducing agent is added into the nickel button electrolyte, and when the redox potential of the electrolyte is regulated to be smaller than -50 mv, the surface of the prepared nickel button is matte. According to the method, the prepared matte nickel button is fine and smooth in texture, the redox potential of the electrolyte is changed through the added reducing agent and oxidizing agent, and stress control of nickel button growth, the use frequency of a nickel button polar plate and nickel button stripping are not affected.

The invention relates to the field of industrial equipment, in particular to a screening machine. The screening machine comprises a discharging funnel, wherein a discharging opening of the dischargingfunnel is connected with a feeding opening of a storage box, and a discharging pipe is arranged at the bottom part of the storage box; an inclined groove is formed under the discharging pipe, the inclined groove is connected with a screening groove, and a discharging end of the screening groove is connected with a feeding end of a conveying groove; and a material receiving cylinder is arranged atthe lower end of a discharging hole of the conveying groove. According to the screening machine, soybeans enter the storage box along the discharging funnel, enter the inclined groove through the discharging pipe at the bottom part of the storage box and flow downwards along the inclined groove to enter the screening groove, and after screening and removing impurities mixed in the soybeans, the soybeans enter the material receiving cylinder along the conveying groove; the screening machine has the advantages that the whole production process does not need manual operation, production efficiency is high, and the purpose of automatically screening the soybeans is achieved.

The invention discloses a three-legged hanging bag discharging centrifuge, which comprises a base, a main shaft, a motor, a rotating drum and a hanging bag, wherein a turnover cover is rotatably arranged at the top of a shell, and both the rotating drum and the shell are made of stainless steel; The flip cover is provided with a spray pipe mouth and an observation window, the spray pipe mouth isprovided with a spray pipe cover, the spray pipe cover is detachably connected with the spray pipe mouth, and the spray pipe cover and the spray pipe mouth as well as the shell and the flip cover aresealed by silicone rubber or fluororubber; The spray nozzle is provided with two groups, namely a rotating drum spray nozzle group and a shell spray nozzle group respectively; a rotating drum spray pipe and a shell spray pipe are respectively arranged in the rotating drum spray nozzle group and the shell spray nozzle group; the nozzle of the rotating drum spray pipe is aligned with the inner sidewall of the rotating drum; and the nozzle of the shell spray pipe is aligned with the inner side wall of the rotating drum. Both the drum and the casing are made of stainless steel, which is not easyto rust when exposed to water. The casing spray pipe sprays and flushes the inside of the drum and casing.

The invention provides a method for regulating the brightness of the appearance of a nickel button, which comprises the following steps: adding an inorganic oxidant to the electrolyte of the nickel button, and controlling the oxidation-reduction potential of the electrolyte to 200mv-680mv, so that the surface of the nickel button is bright as metal; Add an inorganic reducing agent to the nickel button electrolyte, and when the oxidation-reduction potential of the electrolyte is adjusted to be less than 50mv, the surface of the nickel button is prepared to be matte. The matte nickel buckle prepared by the invention is delicate in texture, and the added reducing agent and oxidizing agent change the oxidation-reduction potential of the electrolyte without affecting the stress control of the nickel buckle growth, the use times of the nickel buckle plate and the stripping of the nickel buckle.

The invention discloses an ultrasonic scalpel with the function of preventing gas mist diffusion, which belongs to the technical field of medical devices, and its technical solution includes a handle, an ultrasonic transducer, an outer tube and an ultrasonic conduction rod, and the outer tube is detachably arranged on the handle On one side of the handle, the ultrasonic transducer is detachably arranged on the other side of the handle, the ultrasonic conduction rod is arranged inside the outer tube, and one end of the ultrasonic conduction rod is connected to the output end of the ultrasonic transducer connected, the end of the outer tube away from the handle is also provided with a cutter head connected to the ultrasonic conduction rod, the inside of the handle is provided with a smoke detection module, and the surface of the outer tube is close to the side of the cutter head There is a suction port, and the inside of the outer tube is also provided with a suction pipe connected to the suction port. The present invention is convenient for cleaning the probe, so that the sensor can detect smoke with higher accuracy, and avoid the error of the ultrasonic knife in the non-working state. Inhale.

The invention discloses a degreasing agent separation oil pollution regeneration device. It includes a degreasing tank, and also includes a heating tank arranged at different heights, a heat exchanger, an oil skimming tank, and an oil dirt collection box, the heating tank is arranged higher than the heat exchanger, and the heat exchanger is arranged higher than the oil skimming tank, The skimming tank is arranged higher than the degreasing tank, and the degreasing tank is arranged higher than the oil dirt collection tank; the pipeline between the degreasing tank and the heat exchanger is provided with a degreasing tank circulating pump, a degreasing filter and a switch for switching The first degreasing and degreasing pipeline control valve, an unbroken degreasing agent inlet pipeline and a heated demulsifying degreasing agent outflow pipeline are arranged between the heat exchanger and the heating tank, and the undemulsifying degreasing agent inlet pipeline is provided with There is a second degreasing and oil-removing pipeline control valve for adjusting the flow rate, a curved pipeline is provided between the degreasing tank and the oil-skimming dirt tank, and the heat exchanger is connected to the oil-skimming dirt tank through a pipeline. The invention does not separately install a pump body, uses the degreasing tank circulation pump to drive the unbroken degreasing agent into the heating tank, and uses the gravity of the degreasing agent to realize the return of the clean degreasing agent to the degreasing tank, and the oily dirt flows to the collection box.