6results about How to "Low utilization efficiency" patented technology

The utility model relates to a double-stage electrostatic oil fume treatment unit with fresh air heating and oil stain self-cleaning functions, belonging to the field of high-voltage electrostatic purification of oil fume and the field of fresh air heating. The utility model is to solve the problems of low removal efficiency of oil fume particles caused by the phenomenon of "counter electric field" when high-voltage electrostatic technology purifies oil fume, poor cleaning effect of conventional cleaning measures, high corona voltage, easy air breakdown to form sparks, high risk of fire, and high energy consumption of heating fresh air in winter. The utility model includes an oil fume collecting device, a charging mixing section, a first-stage oil fume treatment section, a second-stage oil fume treatment section, oil fume pipeline components, and fresh air pipeline components. The oil fume collecting device is installed at the inlet end of the oil fume pipeline components. The charging mixing section, the first-stage oil fume treatment section, and the second-stage oil fume treatment section are connected in series in the oil fume pipeline components in the order of the oil fume flow direction. The fresh air pipeline components are installed on the first-stage oil fume treatment section and the second-stage oil fume treatment section. The utility model is used as a device for treating indoor oil fume and preheating indoor fresh air.

The utility model relates to a household miniature heat-conducting oil furnace system, which adopts a liquid-phase organic heat carrier internal circulation heat regeneration technology combining a coal economizer and an air pre-heater outside the furnace to recover flue gas waste heat, effectively avoids low-temperature corrosion of flue gas, and simultaneously realizes high-temperature efficient heat utilization of the heat-conducting oil furnace technology in families. The implementation and popularization of the method have excellent economic and social significance.

The application discloses a manufacturing method for aluminum alloy door and window profiles, and relates to the technical field of aluminum profile processing.The manufacturing method comprises an extrusion cylinder, an upper die and a lower die which are installed on an extrusion machine body, a liquid nitrogen spraying device for cooling a discharge port of the lower die is arranged on the extrusion cylinder, and the extrusion cylinder, the upper die and the lower die are internally provided with a cooling pipe network which is in communication.The liquid nitrogen filling device is arranged to make liquid nitrogen flow through the inner walls of the extrusion cylinder and the upper die through a first cooling main channel, a first inlet channel, a second cooling main channel, a first cooling branch channel, a central cooling cavity, a second cooling branch channel, a third cooling main channel, a first outlet channel, a third outlet channel and a fifth cooling main channel, so that the extrusion cylinder and the upper die are cooled through heat conduction, the temperature of the inner cavity of the extrusion cylinder and the branch outlet of the upper die is prevented from being too high, the profile is prevented from being subjected to heat and then being subjected to mechanical property decline, surface oxidation change or even intense heat, and the production qualified rate of the aluminum profile is ensured.

The utility model relates to the field of office chair, specifically is a kind of folding multifunctional office chair, including seat, the four corners of seat bottom are all fixedly connected with supporting leg;The utility model is through being provided with folding mechanism, by holding handlebar and moving downwards, the movement of handlebar drives connecting rod to move, the movement of connecting rod drives rotating seat to move, the movement of rotating seat drives connecting seat to move, the movement of connecting seat drives ratchet pawl to rotate, cancel the blocking of ratchet wheel, can hold chair back counterclockwise rotation, and chair back is adhered in the top of seat, can reduce the occupied space of chair back, solved the seat of office chair usually is fixed integrated, will long-term occupy fixed office space, reduce the utilization efficiency of office space, and when not using office chair, the storage of seat is also very inconvenient, difficult to effectively store, possibly need to occupy additional storage space.

The invention discloses a fermented feed for promoting ruminants to efficiently utilize soluble proteins as well as a preparation method and application of the fermented feed, and belongs to the technical field of animal feeds. The fermented feed is prepared by fermenting a substrate consisting of cottonseed meal, corn flour and bran with a compound bacteria solution, and the substrate comprises the following components in percentage by mass: 5-31% of cottonseed meal, 2-31% of corn flour and 38-93% of bran; the mass of the composite bacterial liquid is 8-10% of that of the substrate, and the composite bacterial liquid is prepared by compounding a candida tropicalis bacterial liquid and an enterococcus faecalis bacterial liquid according to a volume ratio of 1: 1, wherein the concentrations of the candida tropicalis bacterial liquid and the enterococcus faecalis bacterial liquid are both 108 CFU / mL. The preparation method comprises the following steps: crushing and sieving the substrate, mixing, adjusting the water content to 40%, spraying the compound bacteria liquid, uniformly mixing, and fermenting at a constant temperature of 30 DEG C. According to the invention, the substrate ratio and the fermentation process are optimized, the utilization efficiency of soluble protein by ruminants is improved, the rumen fermentation environment is improved, meanwhile, the nitrogen emission is reduced, and economic benefits and environmental protection values are achieved in animal production.

The application belongs to the technical field of sporogon culture, and particularly relates to a culture method of sporogon of Brychus based on a liquid culture medium, which comprises the following steps: S1, preparing a Brychus sample with mature sporogon; S2, preparing a spore suspension, taking a mature sporangium of the Brychus and taking out spores, and dispersing the spores into distilled water to prepare a spore suspension; and S3, inoculation, inoculating the spore suspension into a culture bottle containing a liquid culture medium, and then culturing the culture bottle after being covered. The application customizes a special liquid culture medium formula according to the physiological characteristics and growth requirements of the sporogon of the Brychus, and matches highly adaptive culture environment parameters, and the two synergistically ensure the smooth culture of the sporogon of the Brychus from the two dimensions of nutrient supply and environment adaptation.