11results about How to "Concentration controllable" patented technology

The invention discloses a system and a method for accelerating carbonization or mineralization of a cement base material through energization, the system utilizes a carbon dioxide pressure detector to reflect a carbon dioxide pressure value in real time, and the carbon dioxide concentration is supplemented and adjusted in time by controlling the opening and closing states of a valve, so that the stability of the required carbonate ion concentration during the operation of the device and the system is maintained; therefore, the CO2 concentration and pressure in the whole device can be controlled; according to the system, carbonate ions are directionally migrated by utilizing an electromigration method, quickly enter a cement-based test piece and chemically react with alkaline components such as calcium hydroxide and hydrated calcium silicate in the test piece to generate a compact substance, so that carbonization is accelerated. According to the system, carbonate ions are migrated into a test piece with a certain water content and can directly react with alkaline components such as calcium hydroxide and hydrated calcium silicate, no special requirements on various test conditions exist, and the whole operation process is simpler and more convenient.

The utility model belongs to the technical field of coal mine fire prevention, and particularly relates to a coal mine goaf stopping agent fire preventing and extinguishing device which comprises a stopping agent liquid storage box, a liquid inlet control unit, a liquid outlet control unit, a liquid level detection unit, a concentration detection unit and a stirring unit, and the liquid inlet control unit, the liquid outlet control unit, the liquid level detection unit, the concentration detection unit and the stirring unit are electrically connected with a controller. The liquid inlet control unit is located on the upper portion of the stopping agent storage box, the liquid outlet control unit is located on the lower portion of the stopping agent storage box, the stirring unit comprises a driving part and a stirring part which are connected with each other, the driving part is located on the top of the stopping agent storage box, and the stirring part is located in the stopping agent storage box. The liquid level detection unit and the concentration detection unit are used for detecting the liquid level state and the concentration state in the inhibitor liquid storage tank, and the controller is used for receiving a liquid level detection signal and a concentration detection signal so as to control the operation states of the liquid inlet control unit, the liquid outlet control unit and the stirring unit. The device can solve the problem that in the prior art, the concentration of a stopping agent solution is not easy to control.

The invention discloses a semeglutide-containing NPs hydrogel and a preparation method thereof, and relates to the technical field of polymer composites.The semeglutide-containing NPs hydrogel comprises a main drug, polylactic acid nanoparticles, dodecyl modified hydroxypropyl methyl cellulose and PBS; wherein the polylactic acid nanoparticles are prepared by wrapping graphene with polyethylene glycol-polylactic acid, the main drug is semeglutide, and the concentration of the semeglutide in the hydrogel is 2-20 mg / ml. The polylactic acid nano-particles and the dodecyl modified hydroxypropyl methyl cellulose comprise the following components in percentage by weight: 1-2wt% of the dodecyl modified hydroxypropyl methyl cellulose and 10wt% of the polylactic acid nano-particles; the long-term sustained and controlled release effect can be realized; and the degradation speed of the nanoparticles coated with the graphene oxide is inconsistent with that of the nanoparticles not coated with the graphene oxide, so that the release speed of the medicine can be further controlled.

The invention discloses a livestock breeding disinfection and sterilization integrated device and method, and belongs to the technical field of livestock breeding disinfection and sterilizer.The device comprises a movable base, a wind-light sterilization base is arranged on the movable base, and an electro-catalysis generation mechanism used for generating disinfectant is arranged on the wind-light sterilization base; the electro-catalysis generating mechanism is connected with a 360-degree global atomization disinfecting and killing mechanism used for disinfecting the livestock breeding environment through a high-pressure atomization conveying mechanism, the wind-light sterilization base is connected with an atomized liquid circulating and collecting hopper through a protective lifting cover, and the 360-degree global atomization disinfecting and killing mechanism comprises a lifting rotating frame located in the center of the atomized liquid circulating and collecting hopper; a lifting rotating central column is arranged in the center of the lifting rotating frame and is connected with the wind-light sterilizing seat through a wind-light sterilizing structure. The problems that an existing device cannot achieve 360-degree global disinfection, manual disinfectant preparation is troublesome, synchronous lifting and rotating cannot be achieved, disinfectant cannot be recycled, and air collaborative purification is lacked can be solved.

The utility model belongs to the technical field of coal mine fire prevention, and particularly relates to a coal mine goaf stopping agent intelligent spraying system which comprises a premixing tank, a buffer tank, a driving pump, a density detection unit, a liquid level detection unit, a spraying device and an electromagnetic valve set, and the driving pump, the density detection unit, the liquid level detection unit, the spraying device and the electromagnetic valve set are electrically connected with a controller. The premixing tank is communicated with the buffer tank through the driving pump, the buffer tank is communicated with the electromagnetic valve group through the driving pump, the density detection units are respectively positioned between the premixing tank and the spraying device and between the buffer tank and the spraying device, and the liquid level detection units are respectively positioned on the premixing tank and the buffer tank. And the controller is used for controlling the operation states of the spraying device, the driving pump and the electromagnetic valve group according to a density detection signal of the density detection unit and a liquid level detection signal of the liquid level detection unit. The device can solve the problem that the concentration of the inhibitor solution is uncontrollable in the prior art.

This application provides a method and electronic device for constructing a ventilation decision-making model based on reinforcement learning, applied in the field of ventilation decision-making model construction technology. The method includes: acquiring real-time pollutant concentration data at each monitoring point within the operating layer of a wastewater treatment tank; calculating the ventilation demand coefficient at each monitoring point; and forming a state space based on the ventilation demand coefficient of the entire operating layer and determining global safety priority weights and energy consumption priority weights; using the combination of operating parameters of each fan as the action space, and the negative value of a multi-objective evaluation function as the reward function; constructing an environmental simulator based on CFD simulation and single-area multi-fan speed combination calibration and multi-area coupling fitting methods; constructing a reinforcement learning model based on the state space, action space, reward function, and environmental simulator; performing offline training on the reinforcement learning model to obtain a pre-trained model; and during online operation, inputting real-time state data into the pre-trained model and outputting the target fan speed combination.

The invention discloses a carbon fiber sizing agent and a preparation method and application thereof, particularly relates to the technical field of carbon fiber sizing agents, and is characterized in that the carbon fiber sizing agent is prepared from epoxy resin and auxiliaries, the epoxy resin is at least one of bisphenol A epoxy resin or phenolic aldehyde modified epoxy resin, and the auxiliaries are epoxy resin. The auxiliaries comprise a flexibilizer, a soaking agent, a softening agent, a moisture absorbent and an emulsifier, the flexibilizer is one or more of polyether polyol or hydroxyl-terminated polybutadiene, the soaking agent is a nonionic surfactant, the softening agent is one or more of fatty acid ester or fatty acid amide, and the moisture absorbent is one or more of polyisobutylene or polyisobutylene. The moisture absorbent is one or more of glycerol or sorbitol, the emulsifier is a nonionic surfactant, the concentration of the sizing agent is easy to control, the binding force between the sizing agent and the carbon fiber surface is strong, and the compatibility between the sizing agent and a resin matrix is good.

The invention relates to a selenium-rich water preparation method, and belongs to the technical field of functional water preparation methods, the selenium-rich water preparation method comprises an energy filter element, a PP potential filter element, a selenium-rich filter element, a nanometer ultrafiltration filter element and a magnetic energy filter element, and all the filter elements are connected through water pipes. The energy filter element is produced through an electromagnetic technology, a physical reaction and an electrochemical technology, various natural ores are adopted as raw materials and are sequentially arranged according to a certain proportion, after tap water is introduced into the energy filter element under normal pressure, electrons are generated by water due to magnetic line cutting, then the electrons are introduced into the main material selenium-rich ore filter element, and when the water generating energy passes through the selenium ores, the electrons are generated by the water due to magnetic line cutting. According to the method, atoms with electrons encounter metal ions in the ore to automatically generate a coordination reaction, mineral ions of the selenium element are formed in water, and the content of the selenium element in the water is stabilized to be about 0.018 mg / L per liter of Se under the conditions of set flow and flow velocity, so that the selenium element in the natural selenium ore is uniformly dispersed in the water in a cation form, and the concentration is controllable.

The present invention relates to the field of additive manufacturing technology, and in particular, to a surface surfacing method and device for aluminum bronze alloy. The surfacing method comprises the following steps: using aluminum bronze welding wire as a cladding material, surfacing welding is performed on the surface of a workpiece; wherein the aluminum bronze welding wire comprises the following components by mass percentage: aluminum 7%-9%, manganese 10%-14%, nickel 1%-3%, iron 1%-4%, silicon 0.01%-0.1%, phosphorus 0.01%-0.03%, rare earth elements 0.01%-0.03%, and the remainder is copper; and / or, during the surfacing process, the flux used comprises trimethoxyborane. Adopting the method of the present invention for surfacing welding can efficiently remove Al2O3 film and oxidation inclusions, reduce the surface tension of the solder, and improve the welding spreadability and welding strength of aluminum bronze. The surfacing device comprises a flux generator, which can realize automatic addition of flux and has high production efficiency.

The present invention discloses an aggregation-induced fluorescent particle, a composite, a multi-mode immunochromatographic test paper and a preparation method thereof. The aggregation-induced fluorescent particle has a core-shell structure under a transmission electron microscope, a particle size of 50-500nm, and is mainly composed of an aggregation-induced fluorescent material and a polymer having both color and fluorescence characteristics. The present invention adopts a mini-emulsion solvent evaporation method to prepare aggregation-induced fluorescent particles, the equipment and process are simple, the prepared composite particles have uniform particle size, controllable conditions, good repeatability, and the concentration of aggregation-induced fluorescent materials in the particles is easy to control. The most important thing is that the obtained particles have both color and fluorescence characteristics. The immunochromatographic test strip prepared with the particles as signal carriers can not only be qualitatively detected by the naked eye, but also quantitatively detected by fluorescence.

The application provides a dust removal and CO removal functional filter material, which comprises pure felt filter material and a CO removal catalyst; the CO removal catalyst is mainly Co3O4 and is assisted by CeO2, and the two jointly act. The fiber surface of the dust removal and CO removal functional filter material of the application is loaded with the CO removal catalyst, the effective components of which are Co3O4 and CeO2, and the CeO2 auxiliary catalyst can improve the low-temperature catalytic activity of the main catalyst Co3O4, and the CO removal efficiency can reach more than 90% at 180-220 DEG C.