10results about How to "Achieving Quantitative Control" patented technology

This invention relates to the field of physical similarity simulation technology, specifically providing a physical simulation method for the formation process of lunar lava tube structures. The method involves preparing a simulated melt that meets the rheological and thermodynamic similarity criteria of basaltic lava by mixing thermoplastic materials with condensation additives. The low-gravity effect, high-vacuum environment, and radiative cooling conditions under lunar conditions are reproduced using inclined flow channels and thermal vacuum cavities. By precisely matching dimensionless parameters such as Peckley number, dimensional temperature, and Rayleigh number, the injection rate, flow channel inclination angle, and target ambient temperature of the simulated melt are determined. Under these conditions, controlled melt flow and surface solidification crust formation are simulated, ultimately forming a cavity structure model. This allows for the physical study of the formation process of lunar lava tube structures. This invention can accurately reproduce the dynamic crust formation and cavity formation process of lava flow under extreme lunar conditions, providing a quantitative experimental data basis for the study of the formation mechanism of lunar lava tubes and their engineering applications.

The application discloses a feeding device, which comprises a storage assembly including an inlet and an outlet, and is used for storing materials; a weight detection assembly is arranged on the storage assembly and is close to the inlet, and is used for detecting the weight of the storage assembly and the materials; a material level detection assembly is arranged on the storage assembly and is close to the outlet, and is used for detecting the height of the materials; a temperature detection assembly is arranged on the storage assembly and is arranged between the weight detection assembly and the material level detection assembly, and is used for detecting the temperature of the storage assembly and the materials; a feeding assembly is connected to the outlet, and is used for obtaining the materials from the outlet and conveying the materials; and a control assembly is coupled to the weight detection assembly, the material level detection assembly, the temperature detection assembly and the feeding assembly, and is used for alarming when the weight is less than or equal to a first preset value, or when the temperature is greater than or equal to a second preset value, or when the height of the materials is lower than a preset height. The feeding device reduces the possibility of faults of the feeding device by detecting the weight, the material level and the temperature.

This invention discloses a device and method for the co-processing of tailings and waste rock, backfilling and compaction, and in-situ quality testing, belonging to the field of resource utilization of mining solid waste. Tailings, waste rock, and large particulate waste are weighed and then enter a screening, dewatering, and water treatment and recycling system III. After dewatering, the tailings enter a tailings and solidifying agent mixing system IV, where it is mixed with one or more solidifying agents and / or reinforcing materials transported by a solidifying agent storage system V to form a slurry. The slurry enters a slurry backfilling bin through a silo conveying port and a slurry input channel. After being stirred again in the backfilling bin, it is guided and shaped by a plastic sheet and compacted by a walking compaction wheel. The screened waste rock enters a five-stage waste rock grading screening bin. The in-situ quality testing system samples and tests the strength of the backfilled and compacted area. This invention achieves integrated continuous operation of tailings and waste rock weighing and batching, screening and dewatering, solidification and mixing, slurry backfilling and shaping, waste rock damming, tailwater reuse for dust suppression, and backfill quality testing.

The utility model discloses a metal forging piece feeding device, including the feeding box, the side of being close to the feeding box is provided with the mounting bracket, the top end one side fixed mounting of feeding box has the transmission frame, the outer periphery one side fixed connection of feeding box has dust collection box, the upper end both sides periphery of feeding box all fixed mounting has the dust collection port, the inside lower extreme fixed mounting of dust collection box has the dust collector, the side of being close to dust collector is provided with the ventilation board, the central end sliding connection of dust collection box has the filter screen, the upper end fixed communication of dust collection box has the conveying pipe, and the output of conveying pipe is communicated with two ventilation board respectively Setting, the metal forging piece feeding device of utility model, through setting dust collection port in the top of feeding box, connecting dust collection box and dust collector, cooperation slidable filter screen of dismounting, effectively collect metal dust, improve workshop air quality, guarantee the health of operating personnel.

This invention discloses a method for unsteady-state ultrasonic standing wave-assisted control of fusion welding. It utilizes dual ultrasonic transducers to perform dual-wave interference, forming an ultrasonic standing wave. This ultrasonic standing wave is introduced into the fusion welding process, and its action on the welding area allows for real-time control of the microstructure and properties of different parts of the weld joint. This forms a unsteady-state ultrasonic standing wave with controlled directional movement of the wave packet nodes, which is then used to regulate the microstructure and properties of the weld joint. This invention enables control over the direction and speed of movement of the unsteady-state ultrasonic standing wave wave packet nodes, allowing for regional control of the microstructure and properties of different parts of the weld joint, resulting in a more uniform joint composition and microstructure. It can solve problems such as undercut, burn-through, high residual stress, severe deformation, and columnar crystals that reduce joint performance during the welding of thin materials or fine wires, refining grains and improving joint performance. It can achieve controllable connections from the centimeter scale to the micrometer scale.

The application provides a mass concentration measurement method based on light scattering and aerodynamic dual-mode particle size spectrometer, and belongs to the technical field of particulate matter concentration detection.The method is as follows: introducing a to-be-detected airflow into a light scattering detection area and an aerodynamic detection area simultaneously, acquiring light scattering characteristic parameters and light scattering particle counts of each particle size channel, and acquiring aerodynamic characteristic parameters and aerodynamic particle counts; determining a cross particle size range of the two detection areas, and correcting the aerodynamic particle counts in the range based on the light scattering particle counts; using the corrected aerodynamic particle counts and characteristic parameters to inversely calculate particulate matter mass concentrations in the cross particle size range and taking the particulate matter mass concentrations as a calibration reference; and using the light scattering characteristic parameters and the calibration reference to construct a multi-dimensional calibration model to inversely calculate and predict particulate matter concentrations in a non-cross particle size range.The application realizes high-precision measurement of particulate matter mass concentrations in a wide particle size range through light scattering and aerodynamic dual-mode dynamic calibration.

This utility model discloses a secondary coagulation and sedimentation system for municipal solid waste leachate, comprising: a first reaction tank with a built-in first stirring device; a second reaction tank with its inlet connected to the outlet of the first reaction tank and a built-in second stirring device, the second stirring device having the same or different stirring speed as the first stirring device; a sedimentation tank with its inlet connected to the outlet of the second reaction tank and its outlet connected to a subsequent treatment device; a dosing assembly with its outlet connected to both the first and second reaction tanks to allow the addition of different reagents; and a detection assembly including a first detection element and a second detection element, both electrically connected to the dosing assembly. The first detection element is located in the first reaction tank and is used to detect the water quality in the first reaction tank, and the second detection element is located in the second reaction tank and is used to detect the water quality in the second reaction tank. This utility model can improve the pretreatment effect of municipal solid waste leachate.

The utility model relates to the technical field of calcined coke processing, especially to calcined coke forming press, including first drive motor, second drive motor and support frame, first drive motor output fixedly connected with conveying part, support frame fixedly installed has the screening cylinder, the screening cylinder bottom end is equipped with the discharge gate, the discharge gate fixedly installed has first filter plate, the utility model discloses a conveying part that first drive motor output fixedly connected with, the discharge gate fixedly installed has first filter plate, the screening cylinder is away from first drive motor one end fixedly installed and has second filter plate, and starting first drive motor drives conveying part rotation, conveying part pushes and shoves calcined coke and moves towards the collection box, and the calcined coke successively passes first filter plate and second filter plate in the movement process, and first filter plate and second filter plate carry out screening according to calcined coke particle size, make the density of calcined coke extrusion forming stable, improve the forming effect.

This invention discloses a method for directional grouting repair of scour-filled areas in wharf foundations, comprising: S1, conducting surveys and data collection of the area to be grouted before directional grouting; S2, designing a grouting scheme, including: S21, estimating the required grouting volume for the area to be grouted; S22, designing the grouting hole positions and spacing; S23, initially assessing the grouting influence radius under given grouting pressure and flow rate conditions, thereby guiding the hole spacing and grouting volume distribution; S24, designing an upper limit for grouting pressure, ensuring that the upper limit is less than the critical rupture pressure of the soil or less than the allowable bearing capacity of the wharf structure; S3, selecting grouting materials and proportioning them; S4, carrying out grouting construction, including: S41, drilling; S42, test grouting; S43, formal grouting; S5, monitoring and quality assessment. This invention enables precise filling and foundation reinforcement of scour-filled areas.

This invention discloses a photothermal-triggered reusable drug delivery microneedle patch based on phase change materials, its preparation method, and its applications, relating to the field of pharmaceutical technology. The microneedle patch comprises several microneedles, each containing a drug-loaded matrix, a therapeutic drug, and photothermal nanoparticles. The drug-loaded matrix comprises a phase change material with reversible solidification-melting properties, capable of melting under photothermal triggering conditions and reverting to solidification after the photothermal triggering conditions disappear. The melting point of the phase change material is between 38°C and 45°C. The phase change material includes higher fatty acids and polyethylene glycol derivatives, and the photothermal nanoparticles include gold nanorods, graphene oxide, and polypyrrole nanoparticles. This invention proposes a microneedle patch using near-infrared light as a trigger signal and a phase change material with reversible solidification-melting properties. Through the melting process of the same phase change material under photothermal triggering, reusable drug delivery is achieved, overcoming the technical limitations of existing microneedles that only allow for "single-use, continuous drug release."