32results about How to "Improve productivity per unit time" patented technology

A manufacturing method of a light emitting diode (LED) and a manufacturing method of an LED module are provided. The manufacturing method of the LED may include manufacturing a plurality of LED chips, manufacturing a phosphor pre-form including a plurality of mounting areas for mounting the plurality of LED chips, applying an adhesive inside the phosphor pre-form, mounting each of the plurality of LED chips in each of the plurality of mounting areas, and cutting the phosphor pre-form to which the plurality of LED chips are mounted, into units including individual LED chips.

The invention belongs to the field of curcumin preparation, and in particular relates to a curcumin composite nano particle and a preparation method thereof. Wherein, the following substances are included in parts by weight: 40-100 parts of curcumin, 1 part of piperine, and 400-5000 parts of plant polysaccharides. The preparation method comprises the following steps: S1, adding curcumin and piperine to liquefied CO2, and dispersing them uniformly to obtain a mixture; S2, pumping the mixture obtained in step S1 into a high-pressure crystallization kettle, and adjusting the temperature and pressure to preset values Finally, pump the plant polysaccharide aqueous solution into the high-pressure crystallization kettle; S3, pass CO2 into the high-pressure crystallization kettle, and maintain the temperature and pressure in the high-pressure reaction kettle until the water is dried, and stop pumping CO 2 , and the dry sample was obtained after the pressure was reduced to normal pressure. In the whole preparation process, the process time is short, no organic solvent is used, and the prepared product has better bioavailability and curative effect.

The invention relates to the technical field of inorganic synthesis, and discloses a preparation method of a trivalent rhodium acetate trimer, comprising the following steps: (1) mixing rhodium powder and potassium chloride, and then introducing chlorine gas for reaction; (2) mixing The product obtained in step (1) is dissolved in water, filtered, potassium hydroxide is added to the filtrate for reaction, and rhodium hydroxide is obtained after filtering and washing; (3) water, nitric acid and glacial acetic acid are added to rhodium hydroxide Carry out the reaction, evaporate the solution to dryness after the reaction is completed, use glacial acetic acid to remove the nitrate, and then use water to remove the acid to obtain trivalent rhodium acetate trimer. The invention adopts nitric acid and glacial acetic acid to dissolve rhodium hydroxide, and then uses glacial acetic acid to catch up with the nitric acid, so that the reaction speed can be obviously accelerated, thereby increasing the yield of trivalent rhodium acetate trimer.

The invention discloses an air-passage multi-tube spiral device and process for preparing gas through dry distillation and pyrolysis on biomass. The device consists of a biomass raw material pre-treatment system, a biomass dry distillation and pyrolysis system, a gas and carbon powder separating and purifying system, a gas conveying and storing system, a carbon powder cooling and collecting system and an afterheat recycling system, wherein the biomass dry distillation and pyrolysis system is provided with a plurality of rows of dry distillation and pyrolysis sleeves; spiral material conveyingdevices and exhaust passages are arranged in each row of dry distillation and pyrolysis sleeves; and a communication pipe is arranged between adjacent dry distillation and pyrolysis sleeves, so the rows of dry distillation and pyrolysis sleeves are connected into an S-shaped pipe in series. The process comprises the following steps of: 1, crushing, drying and conveying a biomass raw material; 2, performing dry distillation and pyrolysis on the biomass; 3, separating and purifying gas and carbon powder; and 4, storing and conveying the gas. The device and the process have the beneficial effects that: the condition the gas flies around to affect the normal production is not caused, mass industrial production can be realized, the production cost is reduced, and low energy consumption is realized.

The multistory crude oil refining apparatus includes: a crude oil receiving part; a first refining tank, wherein a first heater is mounted in the first refining tank; at least one first processed oil discharge pipe connected to one side of the first refining tank; a first processed oil discharge pipe pressure sensitive switch; at least one first impurity discharge pipe connected to the other side of the first refining tank; a first impurity discharge pipe pressure sensitive switch; a second refining tank, wherein a second heater is mounted in the second refining tank; at least one second processed oil discharge pipe connected to one side of the second refining tank; a second processed oil discharge pipe pressure sensitive switch; at least one second impurity discharge pipe connected to the other side of the second refining tank; and a second impurity discharge pipe pressure sensitive switch.

The invention relates to a preparation method of methylphenylcarbamate. The preparation method comprises 1, adding urea and aniline into a pre-reactor and a diphenyl urea synthesis reactor and synthesizing diphenyl urea, 2, conveying the reaction liquid into a falling film evaporator and an evaporating crystallizer through a feeding pump, separating aniline, mixing the aniline and methanol, feeding the mixture into an alcoholysis reactor, carrying out a reaction process, feeding the reaction materials into a flash evaporation pot, separating a part of methanol and aniline and separating residual methanol and most of aniline through the falling film evaporator to obtain a methylphenylcarbamate crude product, and 3, feeding the methylphenylcarbamate crude product into a scraped film type molecule distillation device and further separating the residual microscale aniline and high-boiling residues so that high purity methylphenylcarbamate is obtained and has purity greater than or equal to 99.9%. The preparation method effectively improves methylphenylcarbamate synthesis efficiency and has a product yield greater than or equal to 98.0%. The preparation method is simple and easy and provides an effective synthesis and separation method of a phenyl carbamate intermediate used in preparation of diphenylmethane diisocyanate through the non-phosgene way.

An intelligent sandstone aggregate production line, which relates to the technical field of sandstone aggregate production. The intelligent sandstone aggregate production line comprises an intelligent jaw type crusher, an intelligent impact type crusher, a vibrating screen, a vibrating feeder, a material bin, a hopper, a belt conveyor, a control-related network type integrated electric control system, a distributed control system, and an intelligent internet-of-things monitoring cloud platform. A variety of sensors are additionally mounted on the basis of an original crushing screening production line. Sensor information is transmitted to the distributed control system through the network type integrated electric control system, so that automatic regulation and control on the production process is achieved, and then, the sensor information is transmitted to the intelligent internet-of-things monitoring cloud platform; and by means of cloud computation, production data storage and safety are managed in a unified manner on the basis of classification and combing. The intelligent sandstone aggregate production line has a fault early-warning function and a real-time alarm function, and quickly increases the response speed; the internet-of-things intelligent control and remote monitoring are introduced, the production process is automatically regulated and control, operation is performed with optimal load, the yield is increased, and the downtime maintenance is reduced.

An image forming apparatus includes: a first conveying member that nips and conveys a sheet; a guide member rotatable between a first guiding position where the guide member guides a sheet that is conveyed by the first conveying member toward a first direction and a second guiding position where the guide member guides the sheet toward a second direction that is different from the first direction; a second conveying member that conveys a sheet that has been guided toward the first direction; a third conveying member that conveys a sheet that has been guided toward the second direction; a driver that drives the guide member; an acquiring portion configured to acquiring a basis weight of a sheet; and a controller that controls the driver such as to change torque for driving the guide member based on a basis weight of a sheet acquired by the acquiring portion.

The invention discloses a test method for an ASIC chip wafer. The test method for an ASIC chip wafer is applied to a test device, and the test device is connected to a test board through communication; the test method includes the following steps: when a chip test request is received, the chip is obtained Test the quantity corresponding to the test request, connect the ASIC chips of the test quantity to the test board; send the continuity test signal to the ASIC chip through the initialized test board, and obtain the continuity test data between the ASIC chip and the test board; if If the continuity test data is normal, the performance test signal is sent to the ASIC chip through the test board to obtain the performance test data of the ASIC chip; the performance test data is analyzed to obtain the test result of the ASIC chip. The invention also discloses an ASIC chip wafer testing device and a computer storage medium. The invention improves the testing efficiency of batch ASIC chips.