53results about How to "Effective quenching" patented technology

The invention belongs to the technical field of food, and more specifically relates to a color / fluorescence double signal visible rapid nitrite detection method, and applications thereof. The color / fluorescence double signal visible rapid nitrite detection method comprises following steps: firstly, a carbon dot-neutral red composite system is prepared, wherein carbon dot synthesis and constructionof the carbon dot-neutral red composite system are carried out; a common filter paper is immersed in the carbon dot-neutral red composite system so as to obtain a carbon dot-neutral red composite system detection test paper; a sodium nitrite standard solution is prepared; a color standard colourimetric card and a fluorescence standard colourimetric card of nitrites are prepared; a software is adopted to extract the RGB values of each test paper, a matrix is constructed, and a multivariate linear regression model is constructed; and the content of nitrites in food to be detected is detected. The carbon dot-neutral red composite system possess color / fluorescence double response capacity on nitrites; detection operation steps are simple; the visible results are clear, visual, and accurate; the detection limit is lower; and it is promising for the color / fluorescence double signal visible rapid nitrite detection method to be used in large-scale food nitrite content detection.

The invention relates to a quenching tower, comprising an outer steel sleeve and an inner graphite sleeve, the upper and lower ends of the outer steel sleeve are respectively covered with an upper spray cover plate and a lower cover plate; The shaft is installed in the outer steel sleeve, and forms a cooling water cavity with the inner wall of the outer steel sleeve, which can accommodate the circulation of cooling water. The inner wall is a spray inner cavity for gas spraying. The spray cover plate is connected, and its lower end is directly connected with the lower cover plate; the upper part of the outer steel sleeve has a cooling water outlet and a drain port, the cooling water outlet and the drain port are staggered, and the drain port is located at the cooling above the water outlet; the lower part of the outer steel sleeve has a cooling water inlet and a clean discharge port, the cooling water inlet and the clean discharge port are staggered, and the clean discharge port is located below the cooling water inlet. The advantages of the present invention are: adopting the quenching tower, the structure is simple, the manufacture is convenient, and the tail gas produced after high-temperature incineration can be effectively quenched, so as to solve the problems of environmental pollution, energy saving and environmental protection.

The invention provides a plasma waste gas treatment device and method, and belongs to the technical field of waste gas treatment.The plasma waste gas treatment device comprises a thermal reaction system, an air inlet system, a cooling system, a multistage purification washing system, an exhaust system and a liquid circulating system, and the structureis compact, safe and reliable.The plasma wastegas treatment method comprises the following steps of: carrying out high-temperature cracking reaction after waste gas to be treated enters into the thermal reaction system through the air inlet system, and carrying out quenching and preliminary purification after entering the cooling system; carrying out washing and purification for a plurality of times after entering the multistage washing system; finally discharging the waste gas from a chimney through a dehydration layer under the action of an induced draft fan.The waste gas is subjected to high-temperature cracking, cooling, preliminary purification and multistage purification, so that the purification speed is obviously improved; and the waste gas which can be treated by the method comprises perfluorides, inflammable substances, corrosion, poisons and the like, the purification is thorough, the method is safe and reliable.

The invention relates to a solar cell packaging EVA adhesive film capable of resisting heat, humidity, ultraviolet light and aging, which comprises the following materials by weight portions: 100 portions of copolymer of ethylene vinyl acetate, 0.8-1.4 portions of crosslink curing agent, 0.05-0.15 portion of crosslink curing accelerator, 0.2-0.6 portion of tackifier, 0.1-0.5 portion of antioxidant, 0.05-0.25 portion of ultraviolet light stabilizer and 0.1-0.3 portion of ultraviolet light absorbent, wherein the crosslink curing agent is tert butyl peroxy 2-ethyl hexyl carbonate; the crosslink curing accelerator is triallyl isocyanurate; the tackifier is r-glycidyl ether oxy-propylltrimethoxysilane; the antioxidant is one or two selected from the group consisting of bis(2,4-dicumylphenyl)pentaerythritol diphosphite, distearyl pentaerythritol diphosphite, tris(nonyl phenyl)phosphate and tris(2,4-butylphenyl)phosphate; and ultraviolet light absorbent is gas phase silicon dioxide. The solar cell packaging EVA adhesive film can resist high temperature of 85 DEG C, humidity of 85 percent, ultraviolet light and thermal oxidative aging.