13results about How to "Accurate dosage" patented technology

The utility model relates to the technical field of semiconductor growth, and discloses a quartz tube annealing positioning device which comprises two coaxial assemblies arranged oppositely and a sliding rail connected with the two coaxial assemblies, and the two coaxial assemblies can slide face to face or back to back along the sliding rail; the coaxial assembly comprises an annular stress frame which is used for being embedded in a hearth of the annealing furnace and is coaxial with the hearth, two first elastic pieces and a second elastic piece are arranged on the inner wall of the stress frame at intervals, and the second elastic piece is located between the two first elastic pieces. The first elastic piece and the second elastic piece are connected through a force guide rod; the coaxial assembly further comprises an arc-shaped limiting rod, the two ends of the limiting rod are adjustably connected with the two first elastic parts respectively, and the side wall of the middle of the limiting rod abuts against the second elastic parts. According to the utility model, the measurement precision of the quartz tube can be ensured, the dosage of arsenic added into the quartz tube is ensured to be accurate, and the product quality is ensured.

The utility model discloses a powder accurate metering feeding and conveying device which comprises a device frame, a storage hopper is fixed at the top end of the device frame, a transfer hopper is fixedly installed on the side, away from the vertical part of the device frame, of a collecting box, a baffle is installed at the connecting end of the transfer hopper and the collecting box, and a positioning clamping groove is formed in the side of the baffle. The positioning clamping grooves are attached to the side wall of the collecting box, positioning bolts are installed on the tops of the outer side faces of the baffles in a threaded mode, first magnet blocks are fixedly arranged on the bottom faces and the side faces, located in the collecting box, of the baffles, the first magnet blocks are attached to second magnet blocks, and the second magnet blocks are fixedly installed on the bottom faces and the side faces of the inner sides of the collecting box. According to the accurate metering, feeding and conveying equipment for the powder, the novel structural design is adopted, the powder can be rapidly and accurately metered, the powder can be directly transferred after metering is completed, the metering, feeding and conveying operation of the powder is simplified, and meanwhile the accuracy of the using amount of the powder is guaranteed.

The application discloses a bidirectional plastering and ribbing auxiliary device. The device comprises a vertical ribbing assembly and a horizontal ribbing assembly. The vertical ribbing assembly comprises a vertical sticking plate, an air pump, a bottom plate, an adjusting plate, an air bag and a limiting rod. The vertical sticking plate is provided with an adjusting groove. The horizontal ribbing assembly comprises a horizontal sticking plate, a limiting plate, an adjusting screw and a connecting seat. The connecting seat is located in the middle of the horizontal ribbing assembly, and the horizontal sticking plate is located on the left and right sides of the connecting seat. The horizontal ribbing assembly is connected with the vertical ribbing assembly through the connecting seat. The bidirectional plastering and ribbing auxiliary device is provided with the vertical ribbing assembly and the horizontal ribbing assembly, so that the horizontal and vertical ribbing operations can be completed at one time when the ribbing is made, the difficulty of the horizontal ribbing is effectively reduced, and the ribbing efficiency is greatly improved.

The invention relates to the technical field of crop cultivation and planting, in particular to a salt-inhibiting fertilizing type moderate-severe saline-alkali soil dandelion planting method. The planting method comprises the following steps: (1) soil preparation and salt inhibition: selecting moderate and severe saline-alkali soil blocks with the soil layer thickness of more than 15cm, crushing and raking the soil blocks before sowing, leveling the soil, then spreading a mixture of humic acid and activated carbon, a microbial organic fertilizer and a ternary compound fertilizer on the surface of the soil, and deeply ploughing; (2) ridging; (3) watering and draining; (4) sowing; (5) fertilization; (6) pest control. Appropriate salt stress in saline-alkali soil can bring improvement of traditional Chinese medicine active ingredients, but due to high salinity and alkalinity of moderate and severe saline-alkali soil, growth of traditional Chinese medicine plants is seriously limited. In order to solve the problem, the invention provides a systematic salt-inhibiting and fertilizing planting method for dandelions in the moderate-severe saline-alkali soil, and aims to give full play to the potential of the saline-alkali soil and improve the yield and quality of the dandelions.

The application relates to the technical field of inorganic chemical synthesis, in particular to a sodium carbonate preparation method based on ternary synthesis technology. The method takes sodium chloride, liquid ammonia and carbon dioxide as ternary raw materials, and through a'segmented carbonization-gradient temperature control crystallization-CO2 closed loop recovery-mother liquor optimization treatment' synergistic process, first, uniform crystal nuclei are induced through low-temperature pre-carbonization, then, sufficient reaction is promoted through medium-temperature deep carbonization, and the crystal structure is optimized by combining gradient cooling crystallization and aging, and the efficient recycling of carbon, ammonia and salt resources is realized. The application improves the carbon dioxide utilization rate and the product purity, optimizes the crystal particle size uniformity, reduces the energy consumption and the environmental protection load, the process is stable and easy to control, and has strong industrialization adaptability, and the obtained sodium carbonate can meet the strict requirements in the fields such as food processing, and has economic and environmental benefits.

The utility model relates to the field of one-time aluminum bowl forming, in particular to a one-time aluminum bowl punch forming device. The utility model provides a one-time aluminum bowl punch forming device. A one-time aluminum bowl punch forming device comprises a mounting frame, a hydraulic cylinder, a punching part, a die, a tiling mechanism and an adjusting mechanism. The telescopic end of the hydraulic cylinder moves downwards to enable a stamping part to move downwards, so that the stamping part is in contact with the die, stamping forming operation of a disposable aluminum bowl is completed, when the stamping part moves downwards, the mounting seat extrudes the connecting rod downwards, the connecting rod extrudes the sleeve rod downwards, and the stamping part is pressed by the sleeve rod under the action of the spring. And then, the sleeve rod slides outwards along the limiting frame to drive the pressing roller to rotate outwards, so that the aluminum foil is flattened and unfolded, and the effects that the thickness of the aluminum foil is uniform, and the punch forming effect is good are achieved.

The utility model relates to the field of containers, and discloses a glue container convenient for quantitative extrusion, which comprises a bottle body structure, the bottle body structure comprises a bottle body, a mounting plate is arranged at the top of the bottle body, a dial gauge is arranged on one side outside the bottle body, a bottle opening is arranged at the bottom of the bottle body, and a sealing structure is arranged at the top of the bottle body. A tail pipe structure is arranged at the bottom of the bottle body; the tail pipe structure comprises a movable lantern ring and a glue outlet pipe, the bottom of the movable lantern ring is fixedly connected with the glue outlet pipe, and a push rod assembly is arranged in the bottle body for connection; the push rod assembly comprises a screw cap, a guide rod is installed at the bottom of the screw cap, and a piston is installed at the bottom of the guide rod. According to the utility model, the dial gauge is arranged to accurately control the extruded glue amount, and the sealing structure is arranged to reinforce the sealing performance of the whole glue container and avoid glue solidification.

The invention discloses a method for improving green and high-yield planting of brewing sorghum. The method comprises the steps that 1, unreclaimed original soil is collected, and the nutrition and microelement conditions of the unreclaimed original soil are detected; weeds are harvested on the newly-cultivated land and smashed, a microbial decomposition agent is added, and the land is turned up; 2, a water and fertilizer integrated precise fertilization mode of a soil testing formula is carried out, precise fertilization is carried out in a drip irrigation mode in the sowing period and different growth periods of sorghum, and different fertilizers are used for fertilization and soil disease prevention and control according to the growth law of the sorghum. Different fertilizers are prepared for fertilization according to the requirements of sorghum for nutrients in different growth periods, and chemical fertilizers are partially replaced by amino acid fertilizers and soluble organic matters, so that the use amount of the fertilizers is more accurate, and the purpose of reducing the chemical fertilizers is achieved.

The invention relates to a portable chemical reaction heat measuring device and a measuring method.The portable chemical reaction heat measuring device comprises a shell, a temperature control and calorimetric device, a weight testing device, a sample injection structure, a control structure and a leakage-proof connector, the temperature control and calorimetric device comprises a temperature sensor, a testing container and a reference container, and the testing container and the reference container are arranged in the shell in parallel; the temperature sensor measures temperature changes and sends data to the control structure, the weight testing device is arranged below the testing container, monitors and records weight changes of materials and sends data to the control structure, the sample injection structure is communicated with the testing container through a leakage-proof connector and provides samples, and the pressure sensor is arranged on the outer side of the testing container and used for detecting the temperature changes of the materials. And a reaction heat calculation program is also arranged in the control structure. By adopting the calorimetric equipment, the reaction heat test can be directly carried out on the production site, and by virtue of a specific sample introduction structure and a weighing system, not only can materials be prevented from being contacted with the outside, but also the input material quantity can be accurately weighed.

The application discloses a method for estimating grouting quantity of vertical shaft ground, which comprises the following steps: grouting hole arrangement; drilling all grouting holes to the designed hole depth and collecting grouting hole cores; segmenting the designed hole depth, and setting the segment length as the same value; calculating the rock stratum of each grouting segment of all curtain holes by taking the segment height RQD as the rock quality index; segmenting grouting of the pilot hole; grouting quantity statistics of the pilot hole; solving the rock stratum influence factor of each grouting segment; and estimating the total grouting quantity. The application has the characteristics of high prediction accuracy, convenient prediction method and simple construction, and can more accurately estimate the required grouting quantity of the curtain, and has certain engineering guiding significance.

The utility model discloses a liquid material proportioning and metering tank which comprises a proportioning and metering tank main body and a transparent tube, the side wall of the ingredient metering tank main body is connected with a charging main pipe, a three-way pipe is mounted on the charging main pipe, a mounting seat is mounted on the top wall of the ingredient metering tank main body, and the mounting seat is communicated with the interior of the ingredient metering tank main body; the transparent pipe is mounted on the mounting seat, the upper end of the transparent pipe is connected with a charging auxiliary pipe, one end of the charging auxiliary pipe is connected with the three-way pipe, the bottom wall of the ingredient metering tank main body is connected with a discharging pipe, and the discharging pipe is connected to a polymerization kettle through a pipeline, so that materials in the ingredient metering tank main body are conveyed to the polymerization kettle through the discharging pipe. The liquid material proportioning metering tank is reasonable in structure, simple and convenient to operate, capable of guaranteeing accurate feeding amount of a polymerization kettle and stable raw material proportioning in the carbon fiber production process, capable of finely adjusting the proportioning and feeding in advance to improve the production efficiency, and suitable for storage tanks for stable mass production of carbon fibers.

The present application relates to electroplating wastewater treatment field, especially to a kind of electronic electroplating wastewater treatment reuse system and method.A kind of electronic electroplating wastewater treatment reuse system, including reaction tank and pH adjusting mechanism, the reaction tank is used to accommodate wastewater, the pH adjusting mechanism is set to reaction tank top, the pH adjusting mechanism is used to adjust the pH of wastewater according to demand, further including: several pH sensors, for measuring the pH of wastewater in reaction tank, and generate pH data, the reaction tank is divided into several regions from top to bottom, and each region is provided with at least one pH sensor;Data processing module: the data processing module is used to receive the pH data of each region, and the pH difference data of adjacent two subareas is calculated.A kind of electronic electroplating wastewater treatment reuse method, including the following steps: S1: wastewater is input into reaction tank……Solve the problem of inaccurate reagent dosage when adjusting the pH of cyanide-containing chromium electroplating wastewater.

This utility model discloses an SCR denitrification flue equipped with nitrogen oxide and oxygen concentration detection devices. The flue includes an SCR denitrification flue where exhaust gas enters from the top inlet and flows along the flue to exit from the bottom outlet. A first denitrification spray gun system is located at the top of the flue, and a first nitrogen oxide and oxygen detection device is located at the bottom bend. A second denitrification spray gun system is located in the upward flow section of the flue, and a second nitrogen oxide and oxygen detection device is also located at the bottom outlet. As can be seen from the above structure, this SCR denitrification flue with nitrogen oxide and oxygen concentration detection devices allows the first and second denitrification spray gun systems to adjust the ammonia injection rate based on feedback from the first and second detection devices, ensuring that the nitrogen oxide content in the exhaust gas meets emission requirements and also enabling more precise ammonia usage.