38results about How to "Separation fit" patented technology

The invention relates to the technical field of aspergillus oryzae isolation and preservation, in particular to a simple method for isolating and preserving aspergillus oryzae. Its separation method comprises the following steps: collect fresh yellow, green and black rice bent ball samples from diseased paddy fields, and dry at room temperature for 7-10d for subsequent use; select chlamydospore powder from the collected samples to cover rice bent rice with a thickness greater than 1mm Put the ball on the ultra-clean workbench and sterilize it with ultraviolet light for 30-40 minutes; take a single rice ball with tweezers under sterile conditions, and gently shake off a small amount of chlamydospore powder on the surface of the rice ball and put it on the PSA medium On; use a pipette gun to take 150-200ul sterile water drops on the PSA plate containing chlamydospores and so on. The method of the present invention can be used to quickly isolate and store the target bacterial strain, which solves the problems of time-consuming and low efficiency in the isolation of Aspergillus oryzae, and also solves the problems of pathogenicity degradation and space consumption of the bacterial strain during storage. .

The invention discloses a gas-liquid separating device based on a porous dielectric-slab. The device is composed of a filter, a gas-liquid separation container, a pressure adjusting valve and a pipeline; the device is characterized in that the gas-liquid separation container is respectively connected with the filter and the pressure adjusting valve, the filter, the gas-liquid separation container, the pressure adjusting valve and the pipeline are connected by a pipe joint or welding, an inlet is arranged at one end of the filter, an exhausting pipeline is arranged at one end of the pressure adjusting valve, and the filter is used for filtering the solid in the gas-liquid mixed fluid. The gas-liquid separation container comprises a pressure container and a porous dielectric-slab, an exhausting pipeline is arranged at the upper end of the gas-liquid separation container, a lyosorpic phase porous dielectric-slab is arranged at the lower end thereof, and an exhausting pipeline is arrangedat one end of the lyosorpic phase porous dielectric-slab. The invention is simple in structure, and convenient in use, can continuously separate gas-liquid mixed fluid in wide loading scope in real time, and can be widely used in gas-liquid separation fields of various pressure and flow ranges.

The invention discloses an extraction system of duckweed starch. The extraction system comprises a lifting device, a grinding device, a slag-slurry separation device, a precipitation device and a spin-drying device, wherein a motor is arranged at the top of the lifting device; a transmission chain is arranged in a bin; multiple groups of collection plates for collecting and lifting duckweed are arranged on the transmission chain; the motor drives the transmission chain to rotate; the slag-slurry separation device is provided with a cylinder, and a strip brush is arranged on a spindle in the cylinder; the spin-drying device is provided with a drum which is connected with a vacuum pump through a vacuum pipeline, and the water-containing starch stuck on the surface of the drum is completely pumped by the vacuum pump; and the lifting device, the grinding device, the slag-slurry separation device, the precipitation device and the spin-drying device are connected in turn. The invention also discloses an extraction method for duckweed starch. Through the invention, current blank of starch extraction technology is filled, continuous and efficient extraction of duckweed starch is facilitated after large-scale culture of duckweed, and later utilization and processing of the duckweed starch are convenient.

The invention relates to an online low-pressure, middle-pressure and high-pressure combined two-dimension preparation liquid chromatographic system. Two one-dimension low-pressure, middle-pressure and high-pressure preparation liquid chromatographic systems are organically combined through a six-way valve and software. Pressure used by a second dimension system is not lower than pressure used by a first dimension separation system. When the first dimension system and the second dimension system are low-pressure or middle-pressure preparation liquid chromatographic systems, through switching the six-way valve, target compound directly enters a second dimension chromatographic column for second dimension separation after first dimension separation; and when pressure used by a second dimension separation system is higher than pressure used by the first dimension separation system, a trapping column is connected on the six-way valve, the target compound is adsorbed on the head of the trapping column after the first dimension separation, and then the target compound enters the second dimension chromatographic column for second dimension separation. The invention has the advantages thatthe contradiction between sample injection volume and separation capacity is solved, the large sample injection volume is ensured and the separation capacity of the preparation chromatographic systemis greatly improved; the system structure is simple and the establishment is easy; the operation is simple and convenient and the automation can be easily realized; and the application scope is wide.

The invention discloses a separation device and method for a mixture of gas, water and coal, comprising a separation bin, the separation bin is provided with a feed port, a pulverizer is installed on the feed port, and the separation bin A gas delivery pipe is installed on the upper end of the gas delivery pipe, and a gas collecting bottle is installed on the gas delivery pipe; a first screen is installed in the separation bin, and a first coal discharge pipe is installed on the first screen, and the first coal discharge pipe is installed on the first screen. The first row of coal pipes protrudes from the separation bin, and a vibrator is installed on the first screen, the vibrator is vertically arranged, and a sound wave transducer is installed at the lower end of the vibrator. A vibrating motor and an ultrasonic generator are installed outside the separation chamber, and the vibrating motor is connected with a vibrator. The separation device of the invention is simple in structure, safe and reliable, and is suitable for the separation of gas, water and coal mixtures.

The invention discloses a culture medium for separating actinomycetes in a high-salt environment and application thereof. The culture medium is composed of 1% of mannitol, 0.1% of alanine, 0.1% of K2HPO4, 0.1% of MgSO4.7H2O, 0.02% of CaCO3, 0.001% of FeSO4.7H2O, 1.8% of Agar, 0.0003% of trace salt, 0.0004% of compound vitamin, 0.000025% of biotin and 0.005% of potassium dichromate, wherein the trace salt is composed of 0.0001% of FeSO4.7H2O, 0.0001% of MnCl2.4H2O and 0.0001% of ZnSO4.7H2O; and the compound vitamin is composed of 0.00005% of vitamin B1, 0.00005% of vitamin B2, 0.00005% of vitamin B6, 0.00005% of nicotinic acid, 0.00005% of inositol, 0.00005% of pantothenic acid, 0.00005% of paraaminobenzoic acid and 0.00005% of folic acid. The culture medium is suitable for separating actinomycetes in an oligotrophic high-salt environment which has a high salt content, and has wide application values.