2results about How to "Shorten spin time" patented technology

The invention discloses a microwave drying sample preparation method of a copper-nickel sulfide ore pulp sample, which comprises the following steps: S1, microwave dehydration: putting a wet ore pulp sample into a microwave drying unit, and drying until the water content of the sample is reduced to below 1%; s2, intermediate crushing and division: putting the dried sample into an intelligent double-roller crushing and division machine, crushing until the particle size is less than 2mm, and performing division, so that the recovery rate is greater than 99%; s3, fine crushing and sweeping; and S4, analysis and detection: carrying out elemental chemical analysis on the prepared sample. According to the invention, the dehydration time is greatly shortened, meanwhile, the sample deterioration is avoided, the dried sample is treated by the intelligent double-roller crushing division machine and the intelligent crusher with a self-cleaning function, the efficient and automatic sample preparation is realized, and finally, the sample meeting the analysis requirement is obtained; the technical problems that a traditional method is low in efficiency, large in labor intensity and prone to overheating in concentrate drying and the like are solved, and rapid and accurate detection guarantee is provided for mineral separation production.

The application relates to the technical field of washing machine dehydration control, and provides a dehydration control method of a washing machine, which comprises the following steps: presetting k gears; determining a target rotating speed and a target eccentricity upper limit according to a target gear of dehydration; entering a target gear access control stage: under the condition that the actual front-end correction execution times are less than or equal to the front-end correction upper limit, cyclically executing front-end correction and updating the actual eccentricity; if the actual eccentricity is less than or equal to the target eccentricity upper limit, the washing machine is dehydrated at the target rotating speed; if the front-end correction actual execution times are greater than the front-end correction upper limit and the actual eccentricity is greater than the target eccentricity upper limit, a highest safety gear decision stage is entered: a highest safety gear is found, and the eccentricity upper limit of the next gear of the highest safety gear is less than the actual eccentricity and is less than or equal to the eccentricity upper limit of the highest safety gear. The application solves the technical problem of poor dehydration effect of a traditional washing machine.