Rapid detection method for gutter oil
A detection method, the technology of waste oil, applied in the direction of color/spectral characteristic measurement, etc., can solve the problems of poor repeatability, cumbersome, complicated cleaning process, etc., and achieve the effect of strong timeliness and rapid response
Active Publication Date: 2015-02-18
NANCHANG HANGKONG UNIVERSITY
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Problems solved by technology
Chinese patent (publication number: CN 102023143 A) proposes a rapid detection method for light-scattering waste oil, but the method has poor repeatability, and the device needs to be cleaned once for each type of oil measured. The cleaning process is complicated and cumbersome, and its The measurement mechanism is based on the purity of waste oil, which obviously cannot meet the current measurement of new waste oil
Chinese patent (publication number: CN 102661934 A) proposes a rapid detection device and method for gutter oil. This invention realizes rapid detection of grease by detecting the light transmittance of the oil to be detected, but this method is also difficult to realize the detection of new gutter oil. Oil detection, because the light transmittance of the new gutter oil can be changed after a series of processes
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[0029] Embodiment: a preferred embodiment of the present invention is as follows, the device of the present invention is as figure 1 shown, using a computer 15 through the line ( figure 1 Indicated by a dotted line) to control the laser 1, ICCD14 and the constant temperature controller 10, the constant temperature controller 10 is connected to the constant temperature water tank 9, the model of the constant temperature controller 10 is SLDX-25 controller, and the computer 15 controls the constant temperature water tank 9 through the constant temperature controller 10 The temperature of the laser 1 emits the beam and passes through the half-wave plate 2, the polarizer 3, the quarter-wave plate 4, the first mirror 5, the second mirror 6, the first lens group concave lens 7, and the second lens group Convex lens 8 shoots into the oil product of cuvette 16, produces backward Brillouin scattering signal, and the scattering signal returns according to the original optical path, and ...
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The invention discloses a rapid detection method for gutter oil. A half wavelength plate, a polarizing film, a quarter-wave plate and a first reflecting mirror are sequentially mounted at a transmitting end of a laser; a reflecting mirror is correspondingly arranged on one side of the polarizing film; a non-spherical cylindrical lens, an F-P etalon and an ICCD are sequentially arranged on one side corresponding to the reflecting mirror; a second reflecting mirror is correspondingly mounted on one side of the first reflecting mirror; a first lens group, a second lens group and a constant-temperature water tank are sequentially arranged on one side corresponding to the second reflecting mirror; a cuvette is mounted inside the constant-temperature water tank and corresponds to the second lens group; at normal temperature, common plant oil and the gutter oil are respectively taken as light scattering media, and a computer is used for performing analysis, processing and data storage on two types of signals; laser is supplied to to-be-detected oil and a second Brillouin scattering signal is excited; finally, the scattering signal is compared with the precious signal data after being subjected to analysis and processing by the computer so as to obtain extinguishment results.
Description
technical field [0001] The invention relates to a non-destructive detection technology, in particular to a rapid detection method for waste oil. Background technique [0002] As the world's largest consumer of edible oil, China's demand for edible oil can be imagined, but many unscrupulous traders use inferior oil to make huge profits. These low-quality oils are what we often call waste oil. Waste oil is a general concept. The original waste oil was roughly processed oil from the oily floating objects in the sewer, and now the new waste oil includes low-quality pork, The extraction of pigskin, viscera, etc., and the waste oil that has been repeatedly fried, the extraction of this new type of waste oil is not a simple rough processing, but a series of cumbersome processes such as deslagging, decolorization, vacuum deodorization, etc. . From the appearance point of view, this new type of waste oil is no different from ordinary oil, so traditional detection methods such as lo...
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Inventor 何兴道王泓鹏史久林钱佳成武浩鹏严峰
Owner NANCHANG HANGKONG UNIVERSITY