19results about How to "Guaranteed oxygen content" patented technology

The invention relates to a flue gas circulation waste heat utilization type steel mill solid waste treatment process, which specifically comprises the following steps: mixing a solid waste raw material with fuel, pretreating, feeding into a rotary kiln, reacting in the rotary kiln to generate first flue gas, cooling the first flue gas, and purifying in a desulfurization process to form second flue gas, the third flue gas enters a cooling section of the rotary kiln, and iron-containing materials in the rotary kiln are cooled to form fourth flue gas; the fourth flue gas and the first air enter the second waste heat utilization device and then are subjected to non-contact heat exchange to form fifth flue gas, the first air is subjected to heat exchange through the second waste heat utilization device to form second air, the second air and the gas fuel enter the high-temperature calcination section of the rotary kiln to be combusted to form the first flue gas, and therefore cyclic utilization is achieved. And the third flue gas is adopted as the cooling flue gas to cool the high-temperature iron-containing material in the cooling section of the rotary kiln, so that the problem that the zero-valent iron reduced by the rotary kiln is easily oxidized into iron oxide again is solved.

The invention provides oxygen generation equipment and system for a plateau alpine construction environment, and belongs to the technical field of plateau oxygen generation equipment. Comprising a shelter oxygen generator, a control center is installed at one end of the shelter oxygen generator, a dust collector is installed at the other end of the shelter oxygen generator, a dust collection bin is installed at the bottom of the dust collector, a dispersion pipe is arranged below the dust collector, and one end of the dispersion pipe is in threaded connection with an oxygen guide pipeline; a sliding rail is mounted at the top of the oxygen guide pipeline, and a servo motor is mounted at the bottom of one end of the sliding rail. By arranging the dust absorption assembly and the vibration adjusting assembly, the conveying speed of oxygen and dust absorption is guaranteed, conditions are created for the construction environment, impurities and dust in a tunnel are reduced, the oxygen content in the tunnel is increased, combustion of mechanical fuel oil is maximized, harmful gas is avoided, the personal health of personnel is guaranteed, and meanwhile the safety of the tunnel is improved. And the working efficiency of personnel and machinery is improved, and the construction progress is accelerated.

The utility model provides a gas furnace end with sufficient combustion, which comprises a furnace end base and a windproof furnace frame, an outer ring gas cavity and a central gas cavity are arranged on the furnace end base, the central gas cavity is arranged in the middle of the outer ring gas cavity, and an outer ring fire cover and a central fire cover are respectively covered on the outer ring gas cavity and the central gas cavity. An inner annular air duct is arranged on a bottom plate of the furnace end base and located between the outer annular air cavity and the central air cavity, a plurality of first air outlet holes are distributed in the top of the inner annular air duct in the circumferential direction, the first air outlet holes are in a trumpet shape with the wide outer portion and the narrow inner portion, and the windproof furnace frame is arranged around the outer annular air cavity. According to the gas furnace end, the oxygen content of a combustion area can be ensured, so that gas is fully combusted, and the heat efficiency of the gas furnace end is improved.

The invention discloses a normal-pressure smelting and casting process for Ti-containing stainless steel, which comprises the following specific process flows: step A, feeding designed raw materials into an intermediate frequency furnace for steel melting; the raw materials in the step B enter an AOD furnace for degassing, deslagging and refining to purify molten steel after being molten; step C, transferring into an intermediate frequency furnace, adding composite slag to make high-alkalinity reducing slag, and covering the molten steel surface with the high-alkalinity reducing slag; d, after the white slag is kept stable, TiFe starts to be added; e, steel tapping is prepared; f, tapping is started after the components are adjusted to reach the standard; g, blowing argon in the whole tapping process, adding a final deoxidizer for final deoxidation protection, and quickly transferring the steel slag into a steel ladle; and H, product casting molding is conducted. Compared with the prior art, argon blowing is adopted in the whole process to isolate outside air, refining is conducted through the AOD furnace, the content of N and the content of S in the molten steel are reduced through argon blowing and oxygen blowing, and a stable reducing slag system is established to cover the molten steel surface in the whole process so as to protect the surface of the molten steel from being oxidized.

The utility model discloses a kind of windproof edible mushroom cultivation shed, comprising: mounting base, the upper end of the mounting base is installed with cultivation shed body, the upper end of the cultivation shed body is fixedly connected with sunshade component, the upper end of the mounting base is provided with adjusting assembly, the both sides of the cultivation shed body are provided with through hole, the inner wall of the through hole is provided with ventilation component. Through sunshade component, can according to external light intensity, sunshade cloth is unfolded or stowed, to adjust the illumination in cultivation shed;Through adjusting assembly, the unfolding and stowing of sunshade cloth can be assisted, ensure that sunshade cloth position is stable;Through ventilation component, cultivation shed body can be extracted in the air inside or introduce external fresh air, realize air circulation.

The present invention relates to the technical field of aquaculture, and discloses a large-surface fish storage and water lifting system and a temporary culture method thereof, comprising a culture pond, a culture unit, an oxygenation unit and a fish return unit. The present invention drives a screw shaft to drive a screw shaft ring and a top plate to slide upward, and the top plate slides upward to drive the space inside the culture box to become smaller, thereby ensuring a suitable culture density, and when the top plate moves upward, the culture water depth inside the culture box changes at the same time, which is suitable for the culture of different types of fish, and when the screw shaft is continuously rotated, the side plate can drive the top block to move, and the top block drives the cover plate of the side wall to move horizontally, so as to seal the top of the culture box, thereby reducing the loss caused by the fish crossing the culture box, and when the cover plate is closed, the cover plate squeezes the clamp rod, and the driven rack at the bottom of the clamp rod drives the driving gear to rotate, thereby driving the flip cover to open, and a fish release port is opened on the side wall of the culture box, so that the fish inside can be transported outward, thereby achieving the purpose of collecting the fish.

The invention discloses a distributed power supply grid-connected electric power engineering protection device, which comprises a box body, a mounting guide rail, an anti-islanding protection unit, an electrical unit, a gas suppression unit and a heat dissipation assembly, and is characterized in that the mounting guide rail is fixedly mounted on the inner wall of the box body. Under the extremely high temperature condition, carbon dioxide gas is injected into the box body to rapidly restrain possible sparks, carbon dioxide is used as a fire extinguishing agent, and the oxygen content is reduced, so that the combustion process is prevented, and the fire risk is greatly reduced; once the temperature in the box body returns to normal and the carbon dioxide concentration reaches a safety level, the system can automatically recover to an initial state, so that the continuity and the stability of the whole system are ensured; carbon dioxide gas is prepared on site in a chemical reaction manner, so that effective recycling of resources is realized; carbon dioxide is generated by controlling the reaction between diluted hydrochloric acid and calcium carbonate, and is collected and recharged into the carbon dioxide high-pressure tank through the air pump.

The invention discloses a plateau oxygen conveying and supplying device which comprises a cab, an oxygen conveying device, a gas conveying device and a gas conveying device, and the cab is provided with an oxygen sensor; the liquid oxygen tank is arranged outside the cab, the liquid oxygen tank is connected with a vaporizer through a first pipeline, the output end of the vaporizer is connected with a temporary storage box, the temporary storage box is arranged in the cab, the temporary storage box is provided with a plurality of output ports in the same direction, and each output port is correspondingly provided with a switch piece; the driving plate is movably arranged in the temporary storage box, the internal space of the temporary storage box is divided into two cavities capable of being sealed by the driving plate, the driving plate is connected with a driving assembly used for driving the driving plate to move, the driving assembly is electrically connected with a controller, and the controller is electrically connected with the oxygen sensor. According to the plateau oxygen conveying and supplying device of the structure, the oxygen output amount of the temporary storage box can be adjusted and controlled according to the oxygen content in the cab, so that it is guaranteed that the cab has a certain oxygen content, and then a good air environment is provided for a driver.

The invention discloses an oxygen content monitoring and control method of yellow tea heaping yellowing equipment, and relates to the technical field of oxygen content monitoring, experimental data of a yellow tea heaping yellowing process are obtained, and the experimental data comprise environmental experimental data and corresponding equipment oxygen content data; identifying the relationship between the environment experiment data and the equipment oxygen content according to the experiment data of the yellow tea heaping yellowing process; the heaping yellowing fermentation stage of the current yellow tea is judged on the basis of enzyme activity indexes monitored in real time in the heaping yellowing process of the yellow tea, and then the current equipment oxygen content is recognized according to the relation between environmental experiment data and the equipment oxygen content; whether the oxygen content of the current equipment needs to be adjusted or not is judged according to the heaping yellowing fermentation stage of the current yellow tea, and then the oxygen content of the equipment is adjusted according to the relation between environmental experiment data and the oxygen content of the equipment. The oxygen content in the yellow tea fermentation process is accurately controlled, the inconsistency caused by manual intervention is reduced, and the heaping yellowing effect of the yellow tea in different production batches is guaranteed.

This utility model relates to the field of leachate treatment technology, specifically to an integrated anaerobic and aerobic treatment device for landfill leachate. It includes a treatment frame, with a partition plate fixedly connected inside the frame. Two anaerobic packing materials are arranged on one side of the partition plate, and two aerobic packing materials are arranged on the other side. A fixed pipe connects to the top of the treatment frame, and an adjusting mechanism and an adjusting mechanism are arranged inside the frame. In this utility model, a rotating pipe is rotatably connected to the fixed plate, allowing the rotating pipe to rotate relative to the fixed plate. This causes the conveying frame and the air outlet to rotate within the treatment frame. The leachate is then conveyed through the conveying frame to the bottom of the two anaerobic packing materials, ensuring sufficient contact between the leachate and the entire interior of the packing materials. This facilitates anaerobic treatment of the leachate and allows for more uniform mixing of air within the leachate, thus maintaining the oxygen content of the leachate in the aerobic zone.

The purpose of this invention is to provide an aircraft air conditioning system that can increase the oxygen content of cabin air and reduce the amount of bleed air from the power unit. The aircraft air conditioning system of this invention includes: an air separator that separates oxygen and nitrogen from the bleed air from the power unit to form an oxygen-enriched gas with an oxygen concentration higher than that in the bleed air and a nitrogen-enriched gas with a nitrogen concentration higher than that in the bleed air; and an air mixing chamber connected to the air separator, wherein the oxygen-enriched gas formed in the air separator is supplied to the air mixing chamber, and the oxygen-enriched gas is mixed with secondary air in the aircraft cabin in the air mixing chamber, and the mixed gas is supplied to the aircraft cabin.

The utility model provides a feeding device for acrylate emulsion polymerization, which belongs to the technical field of emulsion polymerization feeding and comprises a feeding tank. The tank cover is arranged at the top of the feeding tank; the feeding hopper and the nitrogen inlet pipe are arranged on the top of the tank cover, and the feeding hopper is located on one side of the nitrogen inlet pipe; the discharging valve is arranged at the bottom of the feeding tank; the nitrogen and oxygen replacement assembly is arranged in the feeding tank; the nitrogen and oxygen replacement assembly comprises a buoyancy lifting disc arranged in the feeding tank and a nitrogen and oxygen replacement assembly arranged in the feeding tank, the U-shaped pipe is arranged in the center of the top of the buoyancy lifting disc; the oxygen discharge straight pipe is arranged at one end of the U-shaped pipe; according to the utility model, nitrogen and oxygen in the feeding tank are replaced, so that the content of the oxygen in the feeding tank is ensured, the oxygen is prevented from entering the polymerization kettle along with a reagent, and the damage of molecular chains caused by oxidation reaction of acrylate emulsion in the polymerization kettle is avoided.

This utility model discloses a hot air circulating oxidation pellet roasting device, belonging to the field of metallurgical pelleting technology. Its key technical features include a base plate, a roasting kiln furnace bolted to the left side of the top of the base plate, an air inlet at the bottom of the roasting kiln furnace, an oxygen content adaptive hot air circulation mechanism at the top of the roasting kiln furnace, and a steam power generation component on the right side of the top of the base plate. The oxygen content adaptive hot air circulation mechanism includes a high-temperature exhaust fan, the bottom of which is bolted to the top of the roasting kiln furnace. This invention solves the problem that existing hot air circulation devices may experience pressure imbalance or oxygen content reduction when directly recovering and utilizing hot air, leading to poor oxygen air supply and circulation, resulting in substandard pellet roasting and oxidation quality. Furthermore, some devices, while directly recovering and utilizing hot air, fail to optimize energy recovery and utilization.

The present invention discloses a plant growth regulating display box for popular science display, comprising a shell, a transparent sealing door and a controller are installed on the front side of the shell, two mesh plates are horizontally arranged in the shell, an emery cloth layer is arranged before the two mesh plates, the two mesh plates are fixedly connected to the inside of the shell, an adjustable fill light is installed on the inner top of the shell, a drain port is arranged on the left side of the inner bottom space of the shell, a manual valve is installed in the drain port, a second piston block that can slide back and forth is arranged in the columnar groove, and a horizontal channel is horizontally penetrated through the bottom inner wall of the shell. When the display box is in use, the gas circulation mechanism is used to ensure the uniformity of factors such as humidity and temperature of the internal air, and the required temperature and humidity can be controlled according to actual needs. In addition, the air can be intermittently ventilated to ensure the amount of oxygen required for plant growth.

The utility model discloses an integrated aquatic firefly indoor large-scale breeding device, which relates to the technical field of firefly breeding and comprises a breeding frame and a pupation component. Placing plates which are uniformly distributed are arranged in the breeding frame, breeding boxes which are uniformly distributed are placed on the placing plates, animal light supplementing lamps which are uniformly distributed are installed on the sides, adjacent to the breeding boxes, of the placing plates, sunshade nets are fixed between the adjacent placing plates, grooves are formed in the box walls of the right sides of the breeding boxes, and the breeding boxes are arranged in the grooves. Electric heating pipes which are evenly distributed are installed in the groove, a temperature and humidity sensor is installed on the rear side in the breeding box, breeding is closer to nature, the pupation rate is higher, it is not needed to transfer the breeding box to a place midway, meanwhile, water quality is guaranteed through water circulation transformation, the survival rate of the larva stage is improved, and the breeding efficiency is improved. And the constant-temperature facility enables the fireflies to grow in winter, so that the growth and reproduction of the fireflies are promoted.

The invention provides a high-energy liquid fuel suitable for a high-altitude environment and a preparation method of the high-energy liquid fuel. The high-energy liquid fuel comprises the following components: 15-55 wt% of chain ether; 5 to 75 wt% of an alkylene oxide; and 10-40 wt% of an organic aluminum compound. According to the invention, the organic aluminum compound can be well dissolved in chain ether and alkylene oxide, can effectively prolong the preservation time, can be stored for a long time under the condition of air isolation without sedimentation, aggregation or deterioration, and has good storage stability; and the organic aluminum compound has relatively low detonation energy and relatively high combustion energy, so that the detonation temperature of the high-energy liquid fuel is ensured. Therefore, the high-energy liquid fuel provided by the invention has the advantages that the stability and the combustion performance are well balanced, the burning and explosion rate of the high-energy liquid fuel can be improved in a plain area, and the energy of the high-energy liquid fuel can be better exerted; in a high-altitude area, the detonation effect in a high-altitude oxygen-deficient environment can be enhanced, and the detonation performance of high-energy liquid fuel is improved.

This application belongs to the technical field of medical devices and discloses an airflow switching rotary valve and an oxygen generator. The airflow switching rotary valve includes a mounting base and a moving valve core. The mounting base has a distribution chamber and an air inlet communicating with the distribution chamber. The moving valve core is located inside the distribution chamber and has a moving plate sealing surface. The moving plate sealing surface is provided with an exhaust chamber. The moving valve core is provided with an air inlet channel located on the side of the exhaust chamber. The outer peripheral surface of the moving valve core is provided with multiple contact positions. The contact positions contact the cavity wall of the distribution chamber to restrict the relative movement of the moving valve core with the mounting base in its own radial direction and to restrict the deflection of the moving valve core in its own axial direction. This ensures the sealing performance between the moving valve core and the stationary valve core and reduces the manufacturing cost of the airflow switching rotary valve.

An intelligent moxibustion instrument comprises a base assembly (1), a lifting column assembly (5) and a moxibustion head assembly (3) which ascends and descends through the lifting column assembly (5) and extends through a supporting arm assembly (4), and the lifting column assembly (5) comprises a fixed column assembly (51) fixed to the base assembly (1) and a sliding column assembly (52) arranged on the fixed column assembly (51) in a sliding fit mode. The base assembly (1) comprises a base (12), a balancing weight (13), a power supply module (14) and a control module, the balancing weight (13) and the power supply module (14) are fixed on the base (12), and the technical key points are that an AI model is preloaded in the control module, image data are acquired through a camera module (5251) and input to the AI model, and target coordinates are output; and the control module drives the lifting driving motor (514), the middle section driving joint (421) and the extending section driving joint (431) to act according to the target coordinates. The device has the advantages of good treatment effect, high automation degree and the like.

The invention discloses an air heat exchange system of an efficient copper dissolving tank and a using method.The air heat exchange system comprises the copper dissolving tank and a dirty liquid tank which are connected through a pipeline, the air heat exchange system further comprises a heat exchanger, a first medium inlet of the heat exchanger is communicated with the top of the copper dissolving tank through a vortex flow meter and a pneumatic control valve, and a second medium inlet of the heat exchanger is communicated with a second medium inlet of the heat exchanger; a first medium outlet of the heat exchanger is communicated with an acid mist tower through an induced draft fan, a heat exchange pipeline communicated with outside air is arranged in the dirty liquid tank, and the heat exchange pipeline is communicated with a second medium inlet of the heat exchanger at the same time. And a second medium outlet of the heat exchanger is communicated with a hot air pipe in the copper dissolving tank through a pipeline. The problems that an existing copper dissolving liquid preparation system is insufficient in air volume control precision, the temperature of a copper dissolving tank is prone to being reduced, heat loss is serious, and the oxygen content cannot be quantitatively controlled can be solved.