13results about How to "Precisely control usage" patented technology

The invention discloses a synthesis method of vitamin C ethyl ether, and belongs to the technical field of vitamin derivative synthesis. The synthesis method comprises the following steps: adding vitamin C, benzaldehyde and a catalyst into a first organic solvent, carrying out an aldolization reaction, adding an organic alkali after the aldolization reaction is finished, carrying out a neutralization reaction, adding an alkylation reagent, carrying out an alkylation reaction, and removing the first organic solvent after the alkylation reaction is finished, so as to obtain the vitamin C benzaldehyde. The preparation method comprises the following steps: adding a first organic solvent into a first organic solvent, pulping, filtering, collecting filter residues, washing and drying to obtain 5, 6-O-benzyl-3-O-ethyl-L-ascorbic acid, carrying out hydrogenation deprotection on the 5, 6-O-benzyl-3-O-ethyl-L-ascorbic acid, filtering after hydrogenation deprotection, collecting filtrate, crystallizing, collecting precipitate, washing and drying to obtain the 5, 6-O-benzyl-3-O-ethyl-L-ascorbic acid. The vitamin C ethyl ether is obtained. The synthesis method provided by the invention is simple to operate and high in production efficiency, and the obtained vitamin C ethyl ether is high in yield and purity.

The invention provides an intelligent fertilization system driven by vegetable nutrient demand analysis, and relates to the technical field of data processing.The intelligent fertilization system is characterized in that a soil area for planting target vegetables is obtained through a historical planting round determination module, and historical planting rounds are determined; the historical record acquisition module acquires fertilization record information and soil record information corresponding to each planting round; a prediction model training module performs model training according to the recorded information to generate a planting round-soil fertility change prediction model; the soil fertility matching module obtains nutrient demand data to perform soil fertility matching, and outputs a preset soil fertility threshold value; and the fertilization guidance module drives the prediction model to output a predicted planting round smaller than a preset soil fertility threshold value, and soil fertility reminding is carried out. The technical problems that the fertilization efficiency is low and the precision is insufficient due to the fact that historical planting data cannot be deeply excavated and utilized in the existing fertilization process are solved, the scientificity and the precision of the fertilization process are improved, and meanwhile the fertilization efficiency is improved.

The invention discloses a system and method for processing arrival luggage baskets. The system for processing the arrival luggage baskets comprises a conveying line and a lifting unstacker. The conveying line comprises a luggage taking rotary disc, a luggage unloading line located on the upper layer and an empty basket pile conveying line located on the lower layer. The tail end of the luggage unloading line is connected with the luggage taking turntable; the lifting unstacker is used for conveying the empty basket piles on the empty basket pile conveying line to the luggage unloading line. Empty baskets are convenient to transfer, and the transfer efficiency is high.

The invention relates to the technical field of plastic product preparation, and discloses a PBAT online tackifying supercritical gas foaming system and foaming method.The system comprises a dynamic mixer used for mixing and stirring plastic melt, a chain extender and supercritical gas; the gas pressurization module is used for pressurizing gas guided from the gas source to supercritical gas, the gas pressurization module is further used for guiding the supercritical gas to the dynamic mixer, and the material module is used for conveying plastic melt to the dynamic mixer. The tackifier module is used for conveying a chain extender to the dynamic mixer and is provided with a fluid metering unit, and the fluid metering unit is used for detecting the conveying amount of the chain extender. And the control module is used for controlling the gas pressurization module, the material module and the tackifier module. Through cooperation of the dynamic mixer, the gas pressurization module, the material module, the tackifier module and the control module, efficient production of PBAT online tackifying supercritical gas foaming is effectively achieved.

The invention discloses an automatic tree anti-freezing solution smearing robot and belongs to the field of municipal automation equipment. The device is composed of wheels, a chassis frame, an anti-freezing solution box, a battery, a pump body, a first electric push rod, a flow dividing valve, a first sliding block, a first sliding rail, a differential mechanism, a smearing device, a recognition camera, a wheel shaft and a first motor. Through automatic operation, automatic movement and accurate tree alignment, the consistency and uniformity of anti-freezing solution smearing are ensured, the stability of the protection effect is enhanced, meanwhile, bark damage possibly caused by manual operation is avoided, smearing parameters are intelligently adjusted according to the diameter of the tree, the dosage of the anti-freezing solution is accurately controlled, waste or insufficiency is prevented, and the working efficiency is improved. The flexible design can adapt to trunks in different shapes, resource utilization is optimized, direct contact between personnel and chemical agents is reduced, and operation safety is improved.

The invention provides automatic medium-pressure preparation and separation equipment, an automatic medium-pressure preparation and separation method and an automatic separation and preparation system. The automatic medium-pressure preparation and separation equipment comprises a workbench; the sample loading, liquid adding and needle cleaning module, the column packing module, the fraction collecting module, the carrying mechanism and the pump valve module are arranged on the workbench; the mobile phase cache module, the sample loading liquid adding and needle cleaning module which are arranged independent of the workbench are used for sucking sample liquid and cleaning a sample loading needle; chromatographic columns and / or sample loading columns are installed on the column loading module through a carrying mechanism, samples are separated, and the chromatographic columns and / or the sample loading columns of various specifications can be arranged in the column loading module; the fraction collection module is used for collecting fractions; the carrying mechanism is used for transferring materials on the sample loading, liquid adding and needle cleaning module, the column packing module and the fraction collecting module; the mobile phase cache module caches the required mobile phase; and the pump valve module is respectively communicated with the sample loading, liquid adding and needle cleaning module, the column packing module, the fraction collecting module and the mobile phase caching module and is used for providing power for liquid transmission among the modules. According to the invention, automation and unmanned operation of the whole process of medium-pressure preparation and separation are realized.

The invention relates to the technical field of vegetable cultivation, and discloses a vegetable full-coverage ecological efficient cultivation technology which comprises the following steps: step 1, selecting and designing a functional composite mulching film which has the functions of temperature and humidity regulation, pest control, accurate nutrient release and soil protection, and the design of the mulching film comprises a multi-layer structure, each layer has different functions; and step 2, performing plastic film mulching: laying the functional composite plastic film on a vegetable planting area to cover the whole soil surface so as to form a full-coverage cultivation environment. Through optimization of a cultivation environment and accurate nutrient management, the growth efficiency and yield of crops are remarkably improved, a full-coverage cultivation technology and an intelligent fertilization system are combined, so that the crops can obtain appropriate moisture, illumination, nutrients and other elements in different growth stages, and thus healthy growth and disease resistance of the crops are enhanced; the overall quality and the market competitiveness of the vegetables are improved.

The utility model discloses an injection molding machine quantitative feeding mechanism which comprises a rack, a driving assembly and a quantitative assembly, the top of the rack is fixedly provided with a supporting plate, the top of the supporting plate is fixedly provided with a box body, the top of the box body is provided with a feeding port, and the top of the right side of the box body is fixedly provided with the driving assembly. A filter screen is fixedly installed on the left side of the driving assembly, supporting blocks are fixedly installed on the front side and the rear side of the bottom of the filter screen, supporting rods are slidably installed in inner cavities of the supporting blocks, springs are arranged on the left sides of the surfaces of the supporting rods in a sleeving mode, and the sides, close to the supporting blocks, of the springs are fixedly connected with the supporting blocks; a material collecting shell is fixedly installed in an inner cavity of the box body, a quantifying assembly is fixedly installed on the front side of the bottom of the right side of the rack, a discharging opening is formed in the top of the quantifying assembly, and a discharging opening is formed in the bottom of the quantifying assembly. According to the quantitative feeding device, quantitative feeding can be carried out on the injection molding machine through the quantitative assembly, the using amount of raw materials can be accurately controlled through quantitative feeding, waste caused by excessive feeding of the raw materials is avoided, and the production cost is reduced.

This utility model provides an automatic gluing device for cardboard box splicing, including a support frame, a conveyor belt, and a glue applicator. The conveyor belt is mounted on the support frame, and the glue applicator is mounted on the upper middle part of the support frame. The glue applicator includes hydraulic rods, a fixed plate, a glue applicator box, and a motor. The hydraulic rods are symmetrically mounted on both sides of the support frame. The two ends of the fixed plate are connected to the hydraulic rods respectively. A moving groove is opened in the middle of the fixed plate, and a screw is installed in the moving groove. The glue applicator box is placed in the moving groove, and the screw passes through the glue applicator box. The motor is located on one side of the fixed plate and connected to the screw. A glue injection pipe is connected to the top of the glue applicator box. This utility model provides an automatic glue applicator for cardboard used in splicing cardboard boxes. It can adjust the width of the glue applicator range, automatically perform positioning glue applicator, significantly improve the efficiency of the glue applicator process, ensure the position of the cardboard is fixed during the glue applicator process, accurately control the amount of glue used, avoid excessive glue application, save glue consumption, ensure glue bonding quality, and reduce drying time.

The invention discloses a full-closed dedusting and cleaning integrated sweeper based on high-pressure spraying, and relates to the technical field of sweepers, the sweeper comprises a sweeper, a camera module and a processor module, the camera module is embedded in the middle of the front of the sweeper, and the camera module is used for collecting data of a road surface when the sweeper advances. The road sweeper integrates multiple functions of sweeping, environment monitoring, water resource regulation and control, high-pressure spraying and negative-pressure dust collection, can comprehensively meet cleaning requirements in different scenes, collects road surface data in real time through the camera module, analyzes and processes the road surface data through the processor module, can accurately recognize the distribution condition of road surface garbage and dust, and improves the road surface cleaning efficiency. Therefore, a first servo motor in the sweeping assembly is guided to drive a driving gear to rotate, then two driven gears are driven to rotate, the position of a cleaning brush is adjusted, then the height of the cleaning brush can be adjusted through a first electric telescopic cylinder, adjustment of different road surfaces can be adapted, and the cleaning efficiency is improved.

The invention discloses an electrode foil corrosion device, and relates to the technical field of electrode foil production, the electrode foil corrosion device comprises a base, a liquid storage barrel part, a lead screw adjusting part and a sliding plate part, the bottom of the liquid storage barrel part is provided with a shunt control part, and the top of the liquid storage barrel part is provided with a liquid recovery part; two rotating disc mounting bases are symmetrically arranged on the sides, close to each other, of the two sliding plate components, and two sliding groove blocks are symmetrically arranged in the sliding plate components; two gear rotating discs are arranged in the sides, close to each other, of the two rotating disc mounting seats, and two air cylinder racks are symmetrically arranged on the other sides of the rotating disc mounting seats; two belt wheel conveying components are symmetrically arranged at the bottoms of the two sliding groove blocks, and two sliding foil clamping components are symmetrically arranged in the sides, close to each other, of the sliding groove blocks. By means of the structure, the electrode foil can be turned over, the two side faces of the electrode foil can be corroded, residual corrosive liquid in the machining process is recycled, unnecessary waste is avoided, and the production cost is reduced.

The utility model relates to the technical field of blending devices, and discloses a blending device for preparing a corrosion inhibitor, which comprises a blending mechanism, and further comprises a setting mechanism, a stirring device and a feeding mechanism, the top end of the feeding mechanism is fixedly connected with the bottom end of the blending mechanism, the bottom end of the setting mechanism is fixedly connected with the top end of the feeding mechanism, and the stirring device is fixedly connected with the top end of the feeding mechanism. The bottom end of the stirring device is fixedly connected with the top end of the blending mechanism, the blending mechanism comprises a reaction tank, and the side face of the reaction tank is fixedly connected with a supporting frame; raw materials required for producing the corrosion inhibitor are poured into the storage tank to be stored, the required use amount of various raw materials is set through the setting mechanism in the production process, and the water pump operates to pump out the raw materials in the storage tank and send the raw materials into the reaction tank through the connecting pipe to be configured. When the raw materials reach a preset value, the setting mechanism controls the water pump to automatically stop, so that the working intensity of operators is reduced, and the working efficiency is improved.

The invention discloses an operation method of a plant protection robot based on environmental perception, and the method comprises the following steps: installing a sensor module which comprises a temperature and humidity sensor, an illumination sensor, a soil humidity sensor and a gas sensor; environment data is collected in real time, and data cleaning and preprocessing are carried out through the data processing unit; based on the preprocessed data, integrating the data by using an environment perception algorithm to generate detailed environment information of the operation area; based on the environment information, using a machine learning model to analyze the operation area, determining an optimized path of the plant protection robot, and dynamically generating a path planning scheme; and according to the path planning scheme, controlling the plant protection robot to execute spraying operation according to the optimized path. According to the method, through real-time environment perception and dynamic path optimization, the efficiency and accuracy of plant protection operation are improved, the pesticide usage amount and the influence of the pesticide usage amount on the environment are reduced, and the method has wide application prospects and important practical significance.