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

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 a stereo access device for goods. The stereo access device for goods is characterized by comprising at least one access unit, wherein the access unit comprises a main frame (1), a plurality of connection devices capable of stretching up and down, a tray for bearing the goods and a tray elevating mechanism; the main frame (1) comprises a bottom plate (6), a top plate (7) and a plurality of upright posts; the plurality of upright posts support the top plate (7) above the bottom plate (6); at least two goods storage cavities are arranged inside the main frame (1); each layer of goods storage cavity is partitioned through the tray; and two adjacent trays are connected through the connection devices capable of stretching up and down, and the tray at the uppermost layer is suspended on a free elevation end of the tray elevating mechanism. The invention provides the stereo access device for goods with lower cost for accessing the goods with similar specifications or disorderly accessing the goods.

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 relates to autotrophic denitrification nitrogen removal sewage treatment equipment. The sewage treatment equipment comprises an autotrophic denitrification tank, wherein a denitrification filler layer is arranged in the autotrophic denitrification tank. Filler of the denitrification filler layer comprises a self-active nitrogen and phosphorus removal carrier material, the self-active nitrogen and phosphorus removal carrier material comprises a sulfur-containing carrier, a weakly alkaline mineral material, an iron-based material and a microbial growth promoter, and the sulfur-containing carrier is filled with the weakly alkaline mineral material, the iron-based material and the microbial growth promoter in a dispersed mode. The high nitrogen removal efficiency and the stable nitrogen removal effect can be obtained, so that the nitrogen removal efficiency of the sewage treatment equipment can be effectively improved, and meanwhile, the synchronous phosphorus removal effect can also be obtained.

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 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 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.