9results about How to "Short heating time" patented technology

This invention discloses a method for simultaneously separating multiple active ingredients from *Pterocarya stenoptera* essential oil, belonging to the field of natural product separation and purification technology. The invention includes the following steps: (1) sequentially subjecting *Pterocarya stenoptera* to steam distillation and molecular distillation to obtain *Pterocarya stenoptera* essential oil; (2) subjecting the *Pterocarya stenoptera* essential oil to dehydration and degassing to obtain pretreated essential oil; (3) subjecting the pretreated essential oil to two-stage molecular distillation to obtain fraction 1, fraction 2, and residual liquid; (4) subjecting fraction 1, fraction 2, and residual liquid to vacuum precision distillation to simultaneously separate multiple active ingredients from *Pterocarya stenoptera* essential oil. This invention features a green and environmentally friendly process, no organic solvent residue, low energy consumption, and strong controllability, enabling continuous industrial production. The purity of each monomer product is ≥98%, with the main component, methyl salicylate, having a purity ≥99%. This fully exploits the resource value of *Pterocarya stenoptera* essential oil and significantly increases the added value of the product.

The utility model relates to a door body structure for dish washer and dish washer, door body structure includes the door body, be equipped with the water tank in the door body, be equipped with the heating part for heating the water in the water tank into steam on the water tank, the inner wall surface of door body is equipped with the spout that links up with the export of water tank. The water tank is independently integrated on the door body, so that the waterway of water tank is not connected with the waterway in the inner bag, the water in the inner bag is the cleaning water, and it can be heated to 75 DEG C, which is the water temperature of normal work of the dish washer, and it will not affect the service life of the key parts, the water of the water tank is specially used for generating steam and is heated to 100 DEG C. In this way, the water that needs to be heated to 100 DEG C is much less than the water in the inner bag, the required heating time is short, and the energy consumption is low.

The utility model discloses an integrated sink, including the groove body (1) and install the pulsator washing machine (2) of groove body (1) side part, its characterized in that: the pulsator washing machine (2) including the cleaning tank (21), be located in the cleaning tank (21) inside's rotary drum (23) and be used for driving the drive assembly (24) of rotary drum (23) rotation, this pulsator washing machine (2) have working condition, under working condition, the rotary drum (23) horizontal arrangement. Compared with prior art, the integrated sink of the utility model is water -saving and has good cleaning effect when cleaning food material.

The application relates to the technical field of material crushing, in particular to a preparation method of a high-wear-resistance and high-toughness crusher blade and the obtained blade, and the preparation method comprises the following steps: blanking a steel billet into a steel block and forging the steel block into a circular ring, rough machining, quenching and tempering heat treatment and fine machining are performed on the upper and lower surfaces of the circular ring, so that the upper and lower surfaces of the circular ring are flat and have a hardness of HRC 28-32; an induction coil is prepared, the upper and lower surfaces of the circular ring are subjected to induction quenching treatment, so that the surface hardness of the circular ring reaches HRC 58-62; a plurality of teeth are machined in the circumferential direction of the circular ring to obtain a preform; a profiled coil is prepared, and the teeth are subjected to induction quenching treatment, so that the hardness of the side surfaces of the teeth reaches HRC 58-62; the preform is subjected to grinding and a spline hole or a hexagonal hole is machined to obtain the high-wear-resistance and high-toughness crusher blade; the application can obtain the crusher blade which has high surface hardness, high wear resistance, toughness in the core and does not break and fail when crushing hard objects.

The invention belongs to the technical field of chemical engineering, and discloses a molecular distillation decolorization method of long-chain fatty acid. According to the scheme, gas and solid impurities in long-chain fatty acid raw materials are removed through melting and filtering, and colorless or light-colored fatty acid products are separated from mixed materials through molecular distillation by means of free path differences among the fatty acid products, colored polymers and discolored metamorphic products. The method has the advantages that no adsorbent is used, so that the residue of the waste adsorbent and the post-treatment process are avoided; molecular distillation is adopted for direct separation, the heating time is short, the vacuum degree is high, and deterioration and coking of materials at high temperature for a long time are avoided; no solvent is needed; a pump can be used for continuous feeding and discharging, and continuous operation is facilitated; the method is safe, efficient and stable in decolorization effect.

The utility model provides a continuous production system of 1, 3-propane sultone, which comprises a synthesis unit, a nanofiltration separation unit, a cation exchange unit, a falling film concentration unit and a molecular distillation unit which are sequentially communicated through fluid, the synthesis unit accurately controls reaction conditions by adopting a pipeline reactor, continuous feeding and continuous reaction are realized, and the yield of 1, 3-propane sultone is improved. The nanofiltration separation unit adopts nanofiltration equipment to realize rapid separation of products with different molecular weights and small molecular substances, the system safety is improved, the cation exchange unit obtains a 3-hydroxypropanesulfonic acid aqueous solution through a resin tower, and then the 3-hydroxypropanesulfonic acid aqueous solution is evaporated and concentrated through a falling-film evaporator of the falling-film concentration unit; the concentrated solution is fed into a molecular distiller of the molecular distillation unit for esterification distillation, the product is uniformly heated, the heating time is short, the quality of the 1, 3-propane sultone product is improved, the byproduct production rate is reduced, and safe and continuous production is realized.

This invention discloses a method for preparing thermochromic PVC film. The method involves first in-situ coating an organic reversible thermochromic microcapsule with a rigid nano-silica shell, followed by oleophilic coupling modification. The modified microcapsules are then low-shear ground with plasticizers and dispersants to form a pre-dispersed color paste. PVC resin powder and additives are then pre-plasticized by high-speed dry mixing, and after cooling, they are cold-mixed and compounded with the color paste. Finally, the finished product is obtained through intensive extrusion, stepped temperature-controlled calendering, and annealing cooling. This invention improves the heat resistance and shear strength of the microcapsules through inorganic rigid coating, preventing the penetration and poisoning of plasticizers. Combined with surface modification and cooling compounding processes, it effectively avoids capsule rupture and aggregation, significantly improving the initial color development rate and reversible color-changing cycle life of the film.

The invention protects a plant extract concentration chromatography method and a plant extract concentration chromatography device. The extracting solution concentration chromatography method comprises the following steps which are executed in sequence: obtaining a concentrated extracting solution of which the ethanol concentration is relatively reduced by 20-60%; the concentrated extracting solution is conveyed to the chromatographic column for chromatography, and meanwhile, a new extracting solution is conveyed to the heating evaporation unit, so that the heating evaporation unit can continuously provide the concentrated extracting solution with the ethanol concentration relatively reduced by 20%-60% for the chromatographic column. The extracting solution concentration chromatography device comprises a heating evaporation unit, a chromatographic column, a concentrated solution delivery pump and an extracting solution delivery pump, wherein the heating evaporation unit is used for heating and evaporating an extracting solution to obtain a concentrated extracting solution of which the ethanol concentration is relatively reduced by 20-60%. According to the method disclosed by the invention, a paste extracting solution of which the solvent amount is reduced by 90% is not obtained, but a concentrated extracting solution of which the ethanol concentration is relatively reduced by 20-60% is obtained, chromatography can be carried out without a dilution step, and the energy consumption and the ethanol consumption are relatively low. Concentration and chromatography are synchronously carried out, so that the process time can be effectively shortened.

The invention relates to a reagent temperature control device and method, and relates to the technical field of digital microfluidics, the reagent temperature control device comprises a digital microfluidics unit, a temperature control unit and at least one power unit, the digital microfluidics unit is provided with a reaction chamber; the temperature control unit is connected with the digital micro-fluidic unit and is provided with at least one temperature control flow channel communicated with the reaction chamber, and the temperature control unit is configured to heat or cool liquid drops in the temperature control flow channel; the power unit is configured to move the liquid drops from the reaction chamber to the temperature control flow channel or move the liquid drops from the temperature control flow channel to the reaction chamber. Compared with the prior art, the problem of reagent heating can be effectively solved, the independently arranged temperature control unit is higher in heating efficiency and shorter in heating time, and the temperature consistency of liquid drops is better. And meanwhile, the problem that the pipetting performance of the chip is reduced due to the fact that the reagent is adhered to the surface of the digital micro-fluidic chip during heating is solved.