34 results about "CARBON DIOXIDE/OXYGEN" patented technology

A linkage device combined with a carbon dioxide and rich-oxygen removing generator for a family, a pig shed and a vegetable shed also can be combined with a living room or an activity room of people. The air odor, harmful gas in the air, NOx gas, toxic gas and dust particle are removed by the ozone water, more importantly, the viruses and bacteria are killed, oxygen is resolved from the ozone, and the non-toxic, sterile, dustfree and clean air rich in carbon dioxide and oxygen is transported in the vegetable shed, therefore the plants grow quickly and the photosynthesis, respiration and metabolism are all strong by adopting the greenhouse simulated illumination, temperature, humidity, fertilizer component and amount suitable for optimum growth conditions of the plants with excellent air input, the carbon dioxide is consumed in the photosynthesis, the oxygen is increased, the air with residual carbon dioxide and rich oxygen is led from the vegetable shed and input to the carbon dioxide-removing, disinfecting and dust-removing ozone water and the oversaturated calcium oxide (calcium hydroxide) fluid, the dust-removing, disinfecting, carbon dioxide-removing and clean rich-oxygen air is transported to the animal shed for respiration of the animals, so as to lead the respiration and metabolism of the animals to be strong, the oxygen content in the blood to be high and immunity to be strong. The pig manure and urine are used as organic fertilizer for the plants and calcium bicarbonate is obtained in the carbon dioxide-removing process.

To refine a method for electric arc joining, in particular for M[etal] P[rotective] G[as] welding and / or for M[etal] P[rotective] G[as] soldering, of at least one object made of metal and / or at least one metal alloy under protective gas using at least one meltable electrode, at least one mixture made of argon, helium, and at least one active gas being supplied as the protective gas, in such a manner that arbitrary electric arc joining technologies, in particular M[etal] P[rotective] G[as] welding and / or M[etal] P[rotective] G[as] soldering, may be performed in parallel and / or in sequence using the supplied protective gas, it is suggested that the protective gas havehelium in a range from approximately 25 volume-percent (vol.-%) to approximately 30 vol.-%,carbon dioxide, oxygen, or a carbon dioxide-oxygen mixture in a range from approximately 0.5 vol.-% b to approximately 0.9 vol.-%, andargon in the remaining volume range.

The invention discloses a method for recovering noble metal from a waste alumina carrier noble metal catalyst, and particularly relates to a method for recovering platinum from a high-carbon-content waste Pt / alpha-Al2O3 catalyst, which mainly comprises the steps of roasting, leaching, noble metal refining and the like. According to the method, sodium carbonate and sodium peroxide are directly added into the waste catalyst for roasting, alpha-Al2O3 is converted into soluble sodium metaaluminate, meanwhile, released carbon dioxide and oxygen are decomposed to promote effective removal of organic matters and carbon deposits, and carrier component transition and removal of the organic matters and carbon are achieved in a same system. In order to avoid hydrolytic precipitation of sodium metaaluminate, a roasted product is leached by adopting a dilute sodium hydroxide solution, the noble metal is enriched in leached residues, and the noble metal is obtained through refining and purification. The method is simple in technological process, easy to implement on a large scale, high in efficiency and low in energy consumption, and the recovery rate of the noble metal is 99% or above.

The invention discloses a concrete surface carbonization-resistant nano paint which comprises a component A and a component B. The component A comprises the following ingredients in parts by weight: 50-60 parts of bisphenol A resin, 20-30 parts of dispersing agent and 20-30 parts of nano silicon dioxide. The component B comprises the following ingredients in parts by weight: 10-12 parts of polyamine curing agent, 25-30 parts of water, 12-15 parts of precipitated barium sulfate, 15-18 parts of wax powder, 18-20 parts of titanium white, 2-5 parts of defoaming agent and 2-5 parts of wetting agent. The invention also discloses a technique for preparing the concrete surface carbonization-resistant nano paint. The nano paint can be widely used on the surfaces of buildings, bridges, tunnels, dams, breast walls and other concrete structures. A compact and hard protective layer is formed on the concrete surface to perform favorable isolation functions on carbon dioxide, oxygen and other components in air, thereby achieving the effect of concrete surface carbonization resistance. Meanwhile, the paint has favorable weather resistance and pollution resistance.

The invention discloses a concrete surface carbonization-resistant nano paint which comprises a component A and a component B. The component A comprises the following ingredients in parts by weight: 50-60 parts of bisphenol A resin, 20-30 parts of dispersing agent and 20-30 parts of nano silicon dioxide. The component B comprises the following ingredients in parts by weight: 10-12 parts of polyamine curing agent, 25-30 parts of water, 12-15 parts of precipitated barium sulfate, 15-18 parts of wax powder, 18-20 parts of titanium white, 2-5 parts of defoaming agent and 2-5 parts of wetting agent. The invention also discloses a technique for preparing the concrete surface carbonization-resistant nano paint. The nano paint can be widely used on the surfaces of buildings, bridges, tunnels, dams, breast walls and other concrete structures. A compact and hard protective layer is formed on the concrete surface to perform favorable isolation functions on carbon dioxide, oxygen and other components in air, thereby achieving the effect of concrete surface carbonization resistance. Meanwhile, the paint has favorable weather resistance and pollution resistance.

The invention relates to a self-inflating sealing ring, a cylinder section clamping tool and an inner wall protection and local oxidation method, and belongs to the technical field of aerospace large cylinder section structures. The problems that in the prior art, a large cylinder section uses a conventional sealing ring or a large rubber plug and is very difficult to install or cannot be disassembled after being oxidized, a large-size cavity is formed in the large-size cylinder section, and normal oxidation cannot be achieved are solved. The self-inflating sealing ring comprises a sealing ring shell and filler, and the sealing ring shell is provided with a feeding port; the sealing ring shell is filled with the filler, the filler is a chemical reactant which generates gas through a chemical reaction, and the generated gas achieves inflation and expansion of the sealing ring shell; and the gas is one or more of carbon dioxide and oxygen. Local oxidation under the protection of the inner wall of the aerospace large cylinder section is achieved.

A device is described for facilitating the preparation of therapeutic foam e.g. for the treatment of varicose veins. A pressurised vial contains a sclerosant liquid, e.g., polidocanol solution, and a sterile gas which is readily absorbed by the body, e.g., carbon dioxide, oxygen or a mixture of these gases. The vial is provided either with a specialised stopper / seal into which a syringe nozzle may be inserted or alternatively a septum seal which may be penetrated by a hypodermic needle. The quantities of gas and liquid and the pressure in the vial are pre-set so that, on connection of a syringe to the vial, a predetermined volume of both gas and liquid is transferred to the syringe, with the intention that the syringe is then used to make a foam by known means. The use of the vial ensures that the ratio of gas to liquid in the foam is standardised, and also provides a convenient way of packaging the gas and liquid and of filling the syringe in a sterile manner.

The invention relates to the field of food fresh-keeping materials, and discloses a plastic fresh-keeping film for packaging kiwi fruits and a preparation method. The preparation method comprises thefollowing steps of (1) using an ethyl alcohol solution to wash polymethyl methacrylate microspheres, putting into a mixed solution of hydrogen peroxide and sulfuric acid, heating, adding into a polyvinylidene chloride emulsion, and stirring, so as to obtain a composite emulsion, wherein the raw materials comprise 10 to 20% of polymethyl methacrylate microspheres, 25 to 30% of polyvinylidene chloride, 1 to 2% of emulsifier, and 48 to 64% of water; (2) performing corona treatment on a nonwoven cloth, uniformly coating the composite emulsion, and drying; (3) using a laser device to radiate the coating layer of the non-woven cloth, so as to obtain the plastic fresh-keeping film. Compared with the traditional fresh-keeping film, the prepared plastic fresh-keeping film has the advantages that the permeation rate of carbon dioxide / oxygen is high, the concentration of carbon dioxide is low, the low-oxygen environment is well maintained, the atmosphere control effect is obvious, and the warranty period of the kiwi fruit is effectively prolonged; the preparation process is simple, the energy consumption is low, the cost is low, and the application prospect is broad.

A system is configured to perform capnometry / capnography, and / or other compositional analysis on a non-invasively ventilated subject. As such, the system determines amounts of a molecular species of gas (e.g., carbon dioxide, oxygen, etc.) excreted by the subject on a per-breath basis. Determinations of amounts of the molecular species of gas excreted are adjusted to reflect amounts of the molecular species of gas leaked from the non-invasive interface used to communicate with the airway of the subject.

Provided herein is a degassing valve for a foodstuff product including a valve body, a one-way valve element positioned on the valve body, and a filter associated with said valve body wherein the filter is configured to facilitate the passage of a gas. The gas may be selected from the group consisting of carbon dioxide, oxygen, nitrogen, and methane. Additionally, the gas may be a longer molecular chain gas that comprises the aroma of the product. The filter of the valve body may include activated charcoal, an activated charcoal mixture or a combination thereof. In some embodiments, the foodstuff product comprises breadcrumbs, spices, or other flavorful dry foods, the aroma(s) of which can provide an important marketing benefit.

A coal injection system for blast furnace ironmaking and a use method thereof, belonging to the field of green and efficient production of blast furnace ironmaking. The purpose is to dynamically control the burnout rate of pulverized coal through carbon dioxide transmission and coal injection. Using the inertness of carbon dioxide at room temperature, it can react with pulverized coal at the high temperature of the tuyere of the blast furnace to reduce the oxidation ablation and combustion temperature. The present invention adds a carbon dioxide gas source, a carbon dioxide gas valve, a carbon dioxide gas flow meter, a transport gas oxygen source, and an annular seam gas distribution bag to the original coal injection system. Carbon dioxide is used as the supplementary gas of the pulverized coal bunker and the fluidization gas of the coal injection tank, the mixed gas of carbon dioxide, oxygen and air is used as the pulverized coal delivery gas, and the mixed gas of carbon dioxide and oxygen is used as the annular seam gas of the coal injection gun, according to the amount of coal injection Different, run in different modes. In the present invention, while ensuring that the oxygen content in the transported gas is within a safe range, the oxygen equivalent of the transported gas is changed from 18.75mol / Nm to that of air 3 The highest can be increased to 54.02mol / Nm 3 , the air flow rate of a single coal injection gun annular seam is from 200 to 400Nm 3 / h up to 411.76~647.06Nm 3 / h, increase the burnout rate of pulverized coal by 0-8%.