8 results about "Nitrogen treatment" patented technology

The present application belongs to the technical field of oil and gas field produced water treatment, and particularly relates to an ammonia nitrogen treatment system and method for oil field sulfur-containing produced water. The method comprises the following steps: sending the oil field sulfur-containing produced water into a first buffer pool, reducing sulfides through two-stage aeration of a cyclone aerator and an aeration nozzle device, overflowing from the first buffer pool to a second buffer pool when the first buffer pool reaches a water outlet height, and removing ammonia nitrogen by adding an ammonia nitrogen remover through a conventional dosing port of a dosing device. The present application fully utilizes the characteristics of aeration sulfur removal, and through the addition of a targeted chemical agent and the control of key parameters, purifies and softens the oil field sulfur-containing produced water in one step. After treatment, the water quality only needs to be further filtered by two stages of fine filtration, and the outlet water quality directly meets the steam boiler feed water requirements.

This invention discloses the application of the BS1 protein in regulating plant vessel and pit structure and transport capacity. BS1 mediates acetylation modification of xylan at the pit edge, affecting the arrangement of nanofibers at the pit edge and the formation of pit structure, thereby influencing plant transport capacity. This invention is the first to discover that BS1-mediated acetylation modification at the pit edge plays an important role in pit nanostructure and morphology, as well as vessel transport capacity. Furthermore, BS1 It also mediates changes in pit structure under low-nitrogen treatment. Therefore, it can be controlled by regulating... BS1 The expression level or activity of rice under low nitrogen conditions, and the cultivation of rice with high transport capacity under low nitrogen conditions, have broad application prospects.

The utility model relates to nitrogen treatment technical field, and disclose a kind of efficient nitrogen drying and dehydrating device, including dehydration round tower, the top of dehydration round tower is provided with connecting pipe fitting, the bottom of connecting pipe fitting is provided with connecting tower body, the right side of dehydration round tower is provided with condensate water discharge component, the inside of dehydration round tower is provided with molecular sieve grouping component, and molecular sieve grouping component includes molecular sieve plate, connecting disc, connecting transparent plate, first staggered molecular sieve piece, middle layer connecting plate body and second staggered molecular sieve piece.The efficient nitrogen drying and dehydrating device, by being provided with molecular sieve grouping component, inside is provided with molecular sieve with inclination, nitrogen changes flow direction multiple times when passing through filling layer, increase the contact time and contact area with molecular sieve, nitrogen is in ascending process and constantly with different direction molecular sieve fully contacts, to remove moisture more efficiently, the effect is good when using.

The invention discloses a gate oxide manufacturing method, which is characterized in that a pure nitrogen treatment step carried out in a pure nitrogen atmosphere is added before a constant temperature step in an annealing process after nitridation, so that nitrogen fixation is facilitated, and lattice defects are reduced; then the constant temperature step is carried out, and the O2 flow in the constant temperature step is increased, so that a layer of thicker high-quality oxide film is newly grown at the Si-SiO2 interface to eliminate the interface defect introduced due to higher N dosage in the pure nitrogen treatment step, the nitrogen fixation capability is improved, and the annealing interface state repairing capability after nitridation is improved at the same time; the N dosage of gate oxide can be improved, and gate oxide electric leakage can be reduced.

The utility model discloses a vacuum concentration system suitable for an extract containing unstable components. The vacuum concentration system comprises a nitrogen generator, a nitrogen buffer tank, a vacuum drying box and a vacuum pump, the vacuum drying box comprises a box body, a heating structure arranged in the box body, a hollow storage rack, a sample storage tank, a switch door arranged on the box body, an air inlet A formed in the upper part of the box body and an air outlet A formed in the lower part of the box body; a hygrothermograph is further installed in the box body, and a temperature controller in signal connection with the heating structure and the hygrothermograph and a vacuum display meter used for displaying the vacuum degree in the box body are further arranged on one side of the box body. According to the utility model, through circulating vacuum and nitrogen treatment, the volatilization temperature point of moisture or solvent is reduced by utilizing vacuum, and the volatilized moisture or solvent is taken away by utilizing nitrogen purging treatment, so that the time for concentrating and drying the sample is greatly shortened, and the property of the sample is prevented from changing.

This utility model relates to the field of ampoule processing technology, and specifically discloses an ampoule drawing, nitrogen filling and sealing linkage device, including a base, with a first pillar and a second pillar fixedly installed on the upper end of the base; a nitrogen protection structure is fixedly installed on the upper end of the first pillar; the nitrogen protection structure includes a first base plate, and a second base plate is fixedly installed on the upper end of the second pillar. Through the nitrogen protection structure on the base, the operator activates an angle motor to drive a first rotating shaft to drive a flame-spraying device to reciprocate and heat the bottle mouth, and uses a gas outlet device connected to the flame-spraying device through a combination plate, so that the gas outlet device moves synchronously with the flame-spraying device around the second rotating shaft as the center, and then treats the ampoule with nitrogen through the gas supply pipe and the gas outlet pipe to form an oxygen-free environment and inhibit the oxidation reaction during the high-temperature plastic forming process, thereby realizing the continuous operation of inert gas protection treatment and thermoforming process, and improving the processing quality of ampoules.

The invention belongs to the technical field of composite heat treatment technologies, and particularly relates to a composite heat treatment technology and equipment for improving the wear resistance of parts, which comprises the following steps: step 1, heating the parts in a heating device to 850 DEG C, keeping the temperature for a period of time, and then carrying out water quenching; 2, after water quenching, the part is put into a heating device to be heated to 500-600 DEG C for tempering treatment, and after heat preservation is conducted for a period of time, cooling is conducted; 3, the tempered part is soaked in a salt bath containing nitrogen for nitrogen treatment; 4, after nitriding treatment, the part is put into a heating device to be heated, and low-temperature tempering treatment is conducted; through double-layer strengthening of salt bath nitriding and carbonitriding, a high-hardness protective layer is formed on the surface layer of the part, the hardness of a nitriding layer reaches 800-1200 HV, a high-hardness carbonitriding compound such as Fe (C, N) is formed on a carbonitriding layer, the thickness of the nitriding layer (the nitriding layer ranges from 0.1 mm to 0.3 mm, and the nitriding layer ranges from 0.2 mm to 0.5 mm) is controllable, the wear resistance of the part can be improved by 30-50% compared with traditional single heat treatment, and the high-frequency wear scene such as a gear and a bearing can be adapted.

The invention discloses a coating for anti-nitrogen treatment of a steel part and a preparation method of the coating, and belongs to the field of functional coatings. The invention aims to solve the problems of high cost, complicated working procedures, long production period and the like of the existing anti-nitriding treatment process. The coating is prepared from the following raw materials in percentage by mass: 2%-20% of resin, 20%-35% of a solvent, 30%-60% of Cr2O3 powder, 5%-20% of SnO2 powder, 1%-10% of a coalescing agent, 0.05%-0.5% of an emulsifier, 0.05%-1% of a surface treating agent, 0.01%-1% of a defoaming agent and 0.01%-2% of an initiator. After the anti-nitriding treatment process is carried out, the cleaning of the coating also has the advantage of simplicity and convenience, and the pollution to the environment is avoided.