79results about How to "Easy to liquefy" patented technology

An ophthalmologic cutting device having a base support section for attachment with a movement generating device and a tip with a blade section. The blade section preferably has upper and lower edges, and a forward aspiration free edge extending between them, with the upper edge having a shorter longitudinal length compared with the lower edge and where the forward edge slopes down from a distal end of the upper edge to a distal end of the lower edge, and the lower edge presenting a material contact surface that is thinner in thickness than the upper edge. A slope back in the proximal direction of the forward edge of, for example, 10 to 45 degrees with a straight and/or curving forward edge or a combination of a straight and forward edge sections is preferred. Embodiments of the blade include a blade converging in thickness from top to bottom and one having a curved upper forward edge region and one with a lower edge that has a distal straight section and a recessed section positioned proximal of said distal straight section. The forward edge is also preferably defined by longitudinally diverging, opposing side walls.

A method of producing reduced volatility of urea fertilizers comprising: dissolving N-(n-butyl)-thiophosphoric triamide (NBPT) in an amino alcohol having the formula 1 —(H)_x—N—((CH₂)_m—OH)_n where m is 1-3, x is 0 or 1, and n is 2 when x is 1 and 3 when x is 0: or the formula 2 —(H)_y—N—((CH₂)—CHOH—CH₃)_z such that the length of the carbon chain where the secondary hydroxyl group is located is 3, y is 0 or 1, and z is 2 when y is 1 and 3 when y is 0 to form an NBPT solution; and combining a urea fertilizer in granular or liquid form with the NBPT solution.

The present invention relates to the use of organomodified siloxane block copolymers as care active ingredient for the care of human or animal body parts.

The invention discloses a split inserting type hole forming die which comprises an upper die and a lower die. The upper die is formed by arranging a plurality of insertion rod beams which are provided with hole forming insertion rods. The lower die comprises an insertion hole board, the two ends of the lower die are provided with side boxes for supporting, and guide rods are arranged on the insertion rod beams. Annular grooves are formed in the guide rods, and guide tubes are arranged in the side boxes. The top ends of the guide tubes are fixedly connected with clamping springs, and the upper die is supported through the clamping springs and the side boxes. The insertion rod beams are divided into more than two groups according to a downwards-moving order, and each group of the insertion rod beams comprises the plurality of insertion rod beams, the insertion rod beams of the same group are driven by the same pressure vibration table, and the rods are inserted into materials in batches to form holes. The split inserting type hole forming die is combined with a pole pulling device, and therefore the hole forming process of inserting the rods and pulling the rods out of a perforated brick can be finished. According to the split inserting type hole forming die, perforated brick products are more diverse, perforated bricks with smaller holes and higher hollow rates can be obtained, and in addition, the production efficiency is high, and the shapes of the holes are complete.

The invention discloses a heading machine using a supercritical carbon dioxide jet flow to break a rock. The technical problems that a disc cutter of the existing heading machine is easy to damage anomaly, low in heading efficiency, and high in cost are solved. The heading machine includes a cutter head system, a supercritical carbon dioxide jet nozzle is arranged on the cutter head system, the supercritical carbon dioxide jet nozzle is connected with a supercritical carbon dioxide generating device through a high-pressure pipeline, and the supercritical carbon dioxide jet nozzle is connectedwith the supercritical carbon dioxide generating device through a high-pressure pump station. The supercritical carbon dioxide generating device can generate supercritical carbon dioxide, the supercritical carbon dioxide can be transported to the supercritical carbon dioxide jet nozzle by the high-pressure pump station, the supercritical carbon dioxide can be jetted at a higher speed by the supercritical carbon dioxide jet nozzle to form a jet flow beam with high concentrated energy, and the jet flow beam is provided with the high destructive effect and can broke the rock to realize heading. According to the heading machine using the supercritical carbon dioxide jet flow to break the rock, the rock breaking efficiency is high, the cost is low, and a rock breaking medium is green and environmental protection.

In the present invention, petroleum is separated into hydrocarbon mixtures having different components at an atomizing step and a collecting step. At the atomizing step, the petroleum is ultrasonically vibrated and is discharged and atomized in a state of an atomized fine particle floating in a carrier gas. At this step, the petroleum is separated into a mixed fluid containing the atomized fine particle and the carrier gas and residual petroleum which is not atomized. At the collecting step, the hydrocarbon mixture is separated and collected from the mixed fluid obtained at the collecting step. In the separating method, the petroleum is separated into the residual petroleum and the mixed fluid at the atomizing step, and the mixed fluid is collected at the collecting step so that the petroleum is separated into hydrocarbon mixtures having different components.

The invention provides a high-power sulfur hexafluoride recovery recharging device. A sulfur hexafluoride electric device is connected with a main pipe of a busbar sequentially through a first hand valve, an adsorption tank, a first electric valve, a booster pump, a compressor, a second electric valve, a third electric valve, a first fan heat exchanger, a flooded shell-and-tube heat exchanger and a second hand valve, and a steel cylinder placed on an electronic balance is communicated with each branch pipe of the busbar. The connecting position of the sulfur hexafluoride electric device and the first hand valve is connected with a vacuum pump sequentially through a fourth hand valve and a digital display vacuum gauge and connected with the main pipe of the busbar sequentially through the second fan heat exchanger and a third hand valve. The connecting position of the first hand valve and the adsorption tank is connected with the connecting position of the third electric valve and the first fan heat exchanger through a pipe provided with a fifth electric valve. The connecting position of the adsorption tank and the first electric valve is connected with an inlet of the compressor through a pipe provided with an electric adjusting valve. The connecting position of the second electric valve and the third electric valve is connected with the main pipe of the busbar through a pipe provided with a fourth electric valve.

The invention discloses a method for preparing liquefied natural gas from coke oven gas. The method comprises the following steps that: (1) the feed gas of coke oven gas is compressed and cooled; (2) the cooled coke oven gas is divided into two parts: coke oven gas flow A and coke oven gas flow B, wherein the coke oven gas flow B is throttled by a J-T valve and then depressurized and cooled before entering the bottom of a gas stripping tower; and (3) the coke oven gas flow A is cooled and enters a gas-liquid separation tank; the liquid flow from the bottom of the gas-liquid separation tank enters the gas stripping tower; and the flow at the bottom of the gas stripping tower is throttled by the J-T valve to obtain the liquefied natural gas, wherein the cooling is performed in a heat exchanger. Through the method provided by the invention, the qualified liquefied natural gas product can be directly separated from the coke oven gas, the liquefied natural gas can be conveniently transported and utilized, and the added value of the coke oven gas is increased; moreover, the coke oven gas recovery technology has a simple flow and high automation degree; and the adopted equipment is reliable, and the economic benefits of a coke oven gas recovery device are increased.

The invention discloses a motorcycle engine exhaust valve stem which includes the head of one molding (1) and the rod (2). The circumference face at end of rod has a ring trough (4) and the head ( 1) located at the other end of the rod(2) , these two coinciding with the axis line. In the head (1) there is a groove(3), at the bottome of which has the capacity of home along rod part(2). The capacity of home(5) is filled by contents of sodium metal powder (6), and the Vice-home (5) Department of imports from Plug (7) Seal. This invention can timely release the heat on the head to the rod, then remove the heat from catheter. Thus it effectively prevents the head of the exhaust valve from suddenly warming and accumulating heat, and ensures the metallurgical structure and its intensity have no changes, eliminates disadvantagel caused by colloform sediment breaking upcoarse oil, so ensure the performance and the service life of exhaust valve stem.

The invention relates to the field of exploration and development of petroleum and gas, and provides a technique for purifying, liquefying and re-injecting oilfield CO2 flooding produced gas. According to the technical point, a method of supercharging by a multi-stage compressor and cooling by five-stage heat exchange is adopted, and the purpose of separating and liquefying the produced gas is achieved. The technique comprises the following process steps: supercharging the pretreated oilfield CO2 flooding produced gas by using a multi-stage compressor unit so as to reduce liquefying temperature of gas; and liquefying CO2 in a five-stage heat exchange cooling mode while the produced gas is separated. The technique has the advantages that for the high-CO2-content produced gas, the liquefying temperature of the gas can be reduced gradually along with rising of pressure in a certain range; and under the same pressure, the liquefying temperature of CO2 is higher than that of CH4 and N2. By the technique, while the produced gas is separated, purified and liquefied, injected liquid CO2 can be heated, energy is saved, and engineering cost is reduced.

A liquid in which fine solid Sn particles are dispersed in a resin is accommodated inside the heated tank 4. The resin pressurized by a pressurizing pump is conducted to a nozzle 1, so that a liquid-form resin is caused to jet from the tip end of the nozzle 1 that is disposed inside a vacuum chamber 7. The liquid-form resin which is caused to jet from the nozzle 1 assumes a spherical shape as a result of surface tension, and is solidified by being cooled in a vacuum, so that a solid-form target 2 is formed. A laser introduction window 10 used for the introduction of laser light is formed in the vacuum chamber 7, and laser light generated from a laser light source 8 disposed on the outside of the vacuum chamber 7 is focused by a lens 9 and conducted into the vacuum chamber 7, so that the target is converted into a plasma, thus generating EUV light.

The invention discloses a crankcase combination capable of lowering engine oil loss. A left crankcase and a right crankcase are both provided with waste gas inlets and waste gas channels; the rear section of the waste gas channel of the right crankcase waste channel is provided with an isolation plate to form two paths of channels; the waste gas channel of the right crankcase on the front section of the isolation plate is provided with an oil and gas separation guide plate; a channel entering a waste gas nozzle, which is formed by the isolation of the waste gas channel of the right crankcase and the isolation plate, forms bending-type communication; a baffle is arranged in an oil return cavity; another cavity is isolated out of the oil return cavity by the baffle; a gasket is provided with a second communication hole; and the other cavity isolated by the baffle is communicated with the waste gas channel of the left crankcase by the second communication hole. According to the crankcase combination disclosed by the invention, vaporized engine oil is easier to liquefy. Under the action of the oil and gas separation guide plate, the engine oil and the waste gas can be easily separated, and most parts of vaporized engine oil can flow back to the crankcase again so as to reduce abnormal loss of the engine oil in the crankcase, thereby being favorable for protecting the engine to enable the engine to normally work.

The invention provides an alcohol fermentation method. The alcohol fermentation method comprises the following steps: a, slurrying: obtaining a starchy raw material, crushing the starchy raw material,and mixing with blending water to form a starch solution; b, liquefying: adding liquefying enzyme into the starch solution to obtain a liquefied solution, c, saccharifying: adding saccharifying enzyme into the liquefied solution to obtain a saccharified solution; d, fermenting: adding propanoic acid into the saccharified solution, and then inoculating with seed liquid for alcohol fermentation. Bythe alcohol fermentation method, through addition of the propanoic acid into the saccharified starch solution, the starch conversion rate during the alcohol fermentation can be increased to 90% or above; in addition, the added propanoic acid is low in cost, so that increase in the yield of alcohol and the profit thereof is facilitated.

The invention discloses a cold electricity, gas and fresh water co-production system based on LNG cold energy utilization. The system comprises a Rankine cycle power generation system, an LNG gasification expansion system, a seawater desalination system and an intermediate refrigeration cycle system. The LNG serves as a cold source to reduce the average heat release temperature of Rankine cycle, cold energy of different temperature sections is recycled while the temperature of the mixed working medium and the LNG is increased, one part of low-temperature cold energy is provided for industrialand commercial cold consumption systems, and the other part of low-temperature cold energy is used for sea water desalination. Turbines are respectively arranged in a Rankine cycle power generation system and an LNG gasification expansion power generation system to recover cold energy and pressure energy. When LNG is normally gasified into natural gas and enters a pipeline to be sent to a user, the cold energy recovery efficiency is improved, the power generation capacity is improved, meanwhile, fresh water resources can be additionally obtained, ocean cold pollution caused by direct dischargeof seawater is avoided, the energy utilization efficiency of the system is effectively improved, and the requirements for environmental protection and energy conservation are met.

A method for disinfecting a microtome cryostat (1) comprises a defrosting phase (11), provision (13) of a vaporous disinfection agent (2) which acts upon the closed cryostat chamber (3) and a period of time (14) during which said disinfection agent (2) acts, and having an associated device for carrying out the method. According to the invention, fast and effective disinfection and rapid restarting of a microtome cryostat (1) is possible with secure drying, the temperature difference (ΔT₁, ΔT₂) being produced after the period of time (14) in the cryostat chamber (3) whereupon the precipitated disinfection agent (2) is removed (18) to a cold area.

This invention relates to a temperature controlled heat accompany cable including two parallel metal conduction leads characterizing in squeezing a PCT layer uniformly on the two leads, setting an insulation layer on the PCT layer, a shield layer on the insulation layer and a jacket on the shield layer. Advantages: 1, realizing continuous production of long temperature controlled heat-accompany cables with stable quality, 2, small starting current, 3, uniform temperature, 4, electric energy saving, quick rising of temperature, 6, low cost in mounting and moving, 7, no environment pollution.