18results about How to "Improve hydration efficiency" patented technology

The invention discloses a magnesium-based cobalt precipitation agent and a preparation method and application thereof, and relates to the technical field of composite materials. The method comprises the following steps: performing calcination dissociation, enhanced leaching, carbonization separation, efficient pyrolysis, solid-liquid separation, drying and calcination on first magnesium ore to obtain active magnesium oxide; the second magnesium ore is subjected to calcination dissociation, hydration impurity removal, solid-liquid separation and low-temperature calcination, and then high-purity magnesium oxide is obtained; performing series-parallel modification on active magnesium oxide and high-purity magnesium oxide to obtain a magnesium-based cobalt precipitation agent; the mass ratio of the active magnesium oxide to the high-purity magnesium oxide is 1: (2-10), the modifier is quaternary ammonium salt organic powder, and the addition amount of the modifier is 0.02-1% of the total mass of the magnesium oxide. The magnesium-based cobalt precipitation agent prepared through the method is high in activity, has the advantages of being high in efficiency, low in price, low in unit consumption, environmentally friendly and the like in the aspect of nickel and cobalt precipitation through copper-cobalt ore and laterite-nickel ore wet smelting, and can greatly reduce the material cost in the nickel cobalt hydroxide production process.

The invention discloses active magnesium oxide and a preparation method thereof, and relates to the technical field of magnesium oxide preparation. The method comprises the following steps that first magnesium ore is subjected to calcination dissociation, enhanced leaching and carbonization separation, and then calcium carbonate and an active low-calcium magnesium-rich solution are obtained; carrying out calcining dissociation and mechanical fine grinding on the second magnesium ore to obtain a fine material, or directly carrying out mechanical fine grinding on the second magnesium ore to obtain the fine material; the active low-calcium magnesium-rich liquid is pumped into a hydration activation tank, stirring is started, then the fine material is conveyed to the hydration activation tank, the active low-calcium magnesium-rich liquid and the fine material are subjected to a hydration reaction, and composite magnesium salt is formed; and drying and scattering the composite magnesium salt, conveying to a calcining furnace, calcining, cooling and spirally discharging to obtain the active magnesium oxide. The magnesium oxide prepared by the method is moderate in density, rich in active sites and good in dispersity, has excellent adsorption, hydration and ionization properties, has remarkable effect and cost advantages as an alkaline precipitator, and is beneficial to market popularization and application of high-activity magnesium oxide products in the fields of environmental protection and metallurgy.

The utility model relates to the technical field of plant planting, in particular to a landscape garden planting water replenishing device which comprises a base, a fixing rod fixedly arranged on the base, a planting disc sleeved on the fixing rod, a planting groove arranged on the planting disc, an installation cavity arranged in the base, a water pump fixedly arranged in the installation cavity, and a through hole arranged on the fixing rod and communicated with the installation cavity. A spraying pipe is slidably inserted in the through hole, a counter bore communicated with the mounting cavity is formed in the spraying pipe, a first water supplementing hole communicated with the through hole is formed in the portion, above the planting groove, of the fixing rod, a second water supplementing hole communicated with the counter bore is formed in the spraying pipe, and a water outlet pipe is arranged on the water pump and inserted in the counter bore; according to the device, a worker starts a water pump to enable a water outlet pipe to convey water into a spraying pipe, then the spraying pipe is driven to slide along a through hole of a fixing rod, a first water supplementing hole and a second water supplementing hole are aligned, water flow in the spraying pipe is sprayed into a planting plate, water supplementing operation is achieved, operation is convenient and fast, and the water supplementing efficiency is improved.

The application discloses a kind of high density low rebound shotcrete and preparation method thereof, it is related to shotcrete field, and preparation method includes: (1), respectively to cementitious material, fine aggregate, coarse aggregate is using MAA model to be packed and the design ratio of each raw material in interior is obtained;(2), cementitious material, fine aggregate, coarse aggregate and the rebounding agent of design ratio obtained according to step (1) are fully mixed, water, water reducing agent is mixed, then by the way of mixing with pressurized air, incorporate accelerator, obtain high density low rebound shotcrete.The application uses early strength rebounding agent, improves the pumpability of shotcrete, accelerates the early hydration of concrete, under the joint action of alkali-free accelerator, rapidly improves the early mechanical properties of shotcrete, improves shotcrete construction efficiency.Multiple close packing is used, and cementitious material, fine aggregate, coarse aggregate respectively form close packing structure, effectively improve the plastic viscosity of paste and the compactness of concrete.

The utility model is suitable for the technical field of tobacco planting, and provides a film-breaking water-replenishing device which comprises a bottom plate, a film-breaking water-replenishing device, a film-breaking water-replenishing device and a film-breaking water-replenishing device, the shell is fixedly mounted on the bottom plate; the water tank is fixedly arranged on the shell; the adjusting mechanism is arranged on the bottom plate and used for adjusting the distance between the multiple film breaking and water replenishing mechanisms; the plurality of lifting mechanisms are arranged on the adjusting mechanism and are used for controlling the lifting of the plurality of membrane breaking and water replenishing mechanisms; the plurality of film breaking and water replenishing mechanisms are respectively arranged on the plurality of lifting mechanisms; and the plurality of film breaking and water replenishing mechanisms are used for breaking a plastic film covering the tobacco planting soil and replenishing water to the soil. According to the film-breaking and water-replenishing device, film-breaking and water-replenishing operation can be efficiently completed, time and labor are saved in the operation process, and the film-breaking and water-replenishing device is suitable for tobaccos with different line spacing.

The utility model discloses emergency water replenishing equipment for a fire pool, belongs to the technical field of fire emergency, and aims to solve the problems that the emergency process is tedious and inconvenient to implement and the water replenishing efficiency is low, the emergency water replenishing equipment comprises the fire pool, the left side of the fire pool is fixedly connected with a fire main pipe, and the other end of the fire main pipe is fixedly provided with a spray head; the left side of the top of the fire pool is fixedly connected with a water injection pipe, the right side of the top of the fire pool is fixedly provided with a pump, the pump is fixedly connected with a connecting pipe and is arranged in the fire pool, the right side of the fire pool is provided with a water outlet, and a water retaining mechanism is arranged between the emergency water tank and the fire pool; according to the utility model, through the arrangement of the emergency mechanism, water in the emergency water tank can be quickly and effectively injected into the fire pool, the water replenishing efficiency is accelerated, and meanwhile, the lower limit induction disc is matched, so that the water levels in the emergency water tank and the fire pool can be conveniently and respectively induced, and the water injection work can be conveniently carried out.

The utility model discloses a stropharia rugoso-annulata cultivation water replenishing device, and particularly relates to the technical field of stropharia rugoso-annulata cultivation, the stropharia rugoso-annulata cultivation water replenishing device comprises a support, a pluggable supporting sleeve is installed on the support, a water injection needle communicated with the interior of the supporting sleeve is fixed at the bottom end of the supporting sleeve, and a water replenishing assembly matched with the supporting sleeve is installed on the support; the inserting and pulling assembly comprises an inserting and pulling base installed in the support and a cavity opening formed in the top end of the inserting and pulling base and used for allowing the supporting sleeve and the water injection needle to be inserted, and a connecting sleeve is installed between the inserting and pulling base and the support; through the arrangement of the plugging assembly, the supporting sleeve and the water injection needle can be guided to move, so that the problem that an operator needs to repeatedly try to insert the water injection needle into an existing through hole due to the fact that the caliber of the existing through hole is small is solved, time and labor are saved, and the installation efficiency of the water injection needle is greatly improved; therefore, the water replenishing efficiency of the stropharia rugoso-annulata is improved, and the cultivation of the stropharia rugoso-annulata is facilitated.

The invention belongs to the technical field of chemical solution etching, and discloses a safe water supplementing device and a safe water supplementing method.The safe water supplementing device comprises a reaction tank, a liquid supplementing pipe and a cleaning pipe; wherein a reaction solution is contained in the reaction tank; one end of the liquid supplementing pipe is communicated with an external reaction water source, the other end of the liquid supplementing pipe is communicated into the reaction tank, and the liquid supplementing pipe is used for quantitatively supplementing reaction water into the reaction solution in the reaction process; one end of the cleaning pipe is communicated with an external cleaning water source, the other end of the cleaning pipe is communicated into the reaction tank, the cleaning pipe is used for introducing cleaning water into the reaction tank after the reaction is finished and all the reaction solution in the reaction tank is emptied, and the diameter of the liquid supplementing pipe is smaller than that of the cleaning pipe. According to the safe water supplementing device, a water supplementing pipeline and a flushing pipeline can be separated, so that the water supplementing amount is accurately controlled, and the safety problem caused by instant gasification of water in the reaction tank is avoided.

The invention discloses an active magnesium oxide and a preparation method thereof, and relates to the technical field of magnesium oxide preparation. The method comprises the following steps: calcining and dissociating the first magnesium ore, strengthening leaching and carbonization separation to obtain calcium carbonate and active low-calcium magnesium-rich liquid; calcining and dissociating the second magnesium ore and mechanically grinding to obtain fine material, or directly mechanically grinding the second magnesium ore to obtain fine material; pumping the active low-calcium magnesium-rich liquid into a hydration activation tank, stirring and then conveying the fine material to the hydration activation tank, the active low-calcium magnesium-rich liquid and the fine material undergo hydration reaction and form a composite magnesium salt; drying and breaking up the composite magnesium salt and conveying it to a calcining furnace, calcining, cooling and spiral discharging to obtain active magnesium oxide. The magnesium oxide prepared by the method has moderate density, rich active sites, good dispersibility, excellent adsorption, hydration and ionization properties, and has significant effects and cost advantages as an alkaline precipitant, which is conducive to the market promotion and application of high-activity magnesium oxide products in the fields of environmental protection and metallurgy.

The utility model relates to water seal structure technical field especially relates to a water seal structure for gas cabinet section. Its technical scheme includes the water tank, the outer wall fixed sleeve of water tank has the water storage tank for storing water, the multiple communication pipes of communication setting in the outer wall of water tank, the upper end of communication pipe and the bottom surface communication setting of water storage tank, be located between water tank and water storage tank and be provided with the linkage assembly for controlling communication pipe switch. The utility model can realize the automatic water replenishing effect, avoids manual water replenishing frequently, improves water replenishing efficiency, guarantees the timeliness and accuracy of water replenishing simultaneously.

This invention discloses a low-carbon, high-density shotcrete admixture, its preparation method, and its application, relating to the field of concrete admixtures in building materials. The admixture comprises the following components by mass percentage: 53-73% rheological component, 15-25% thickening component, 10-18% early-strength component, and 0.5-4% setting regulator component. The rheological component includes manganese slag powder and silica fume, and the thickening component is tailings powder loaded with nano-modified cellulose ether. This invention increases the cohesiveness of shotcrete and improves the slurry encapsulation of concrete through the thickening component, increases the yield stress of concrete through the rheological component, and synergistically improves the adhesion and rapid hardening performance of the material after spraying by combining with the early-strength component, thereby reducing the rebound rate. Furthermore, the nanoparticles loaded on organic matter hydrate in the pores, directionally filling harmful pores, effectively improving the density and strength of shotcrete, achieving low-carbon, low-rebound, and high-density shotcrete.

The invention provides an energy-saving and carbon-reducing management and control method for an air conditioner, which comprises the following steps of: guiding liquid, namely guiding a part of water conducted to a refrigeration main machine by a cooling tower into a shallow sand filter; filtering: filtering the water by using the shallow sand filter to obtain a first filtrate and a first pollutant; ion removal: removing set ions in the first filtrate by using a composite electro-adsorption device and solidifying the set ions to obtain a second filtrate and a second pollutant comprising the set ions; ionization: carrying out sterilization and algae removal on the second filtrate by utilizing ionization water purification equipment to obtain a third filtrate, and introducing the third filtrate into water conducted to the refrigeration main machine by the cooling tower; and pollutants are discharged, wherein the first pollutants and the second pollutants are collected and discharged. According to the energy-saving and carbon-reducing management and control method for the air conditioner, the effective utilization rate of water acting on the refrigeration main machine by the cooling tower is improved, and the heat exchange efficiency between the cooling tower and the refrigeration main machine is improved.

The invention discloses a magnesium-based cobalt precipitation agent and a preparation method and application thereof, and relates to the technical field of composite materials. The method comprises: subjecting a first magnesium ore to calcination dissociation, enhanced leaching, carbonization separation, efficient pyrolysis, solid-liquid separation, and dry calcination to obtain active magnesium oxide; subjecting a second magnesium ore to calcination dissociation, hydration and impurity removal, solid-liquid separation, and low-temperature calcination to obtain high-purity magnesium oxide; mixing and modifying active magnesium oxide and high-purity magnesium oxide to obtain a magnesium-based cobalt precipitation agent; the mass ratio of active magnesium oxide to high-purity magnesium oxide is 1:2-10, the modifier is a quaternary ammonium salt organic powder, and the amount of the modifier added is 0.02-1% of the total mass of magnesium oxide. The magnesium-based cobalt precipitation agent prepared by the method has high activity, and has the advantages of high efficiency, low price, low unit consumption, and environmental friendliness in the wet smelting of nickel and cobalt in copper-cobalt ore and laterite nickel ore, and can greatly reduce the material cost in the production process of nickel and cobalt hydroxide.

The application discloses a groundwater recharge system based on bank slope step filtration, which comprises a water interception and distribution unit, a step filtration unit and an infiltration recharge unit. The water interception and distribution unit is composed of a rubber dam and a distribution pipe, the rubber dam can lift the upstream water level, and river water is introduced into the step filtration unit through the distribution pipe; the step filtration unit comprises two upper and lower filtration zones, both of which are double-layer filtration structures, and the bottom filtration layer is embedded with a perforated pipe; filtered water is discharged into the infiltration recharge unit through the perforated pipe in sequence, and the infiltration recharge unit comprises a shallow recharge layer and a deep recharge well. The raised river water is automatically overflowed to the backwater side embankment slope line filtration unit by the rubber dam, the water quality of the recharge source is improved, and the blockage phenomenon caused by recharge can be effectively prevented; the shallow recharge layer and the deep recharge well can be used to consider the recharge of shallow and deep groundwater, and the groundwater recharge efficiency is significantly improved.

The utility model relates to the technical field of cooling water replenishing, in particular to a water replenishing device and a coating cooling water system, which comprise a water supply pipeline, a first control valve and a water level detection piece, the water supply pipeline comprises a water inlet pipe and a first water outlet pipe which are communicated, and the first control valve is arranged on the first water outlet pipe and used for adjusting the flow in the first water outlet pipe; one end of the water level detection piece is electrically connected to the first control valve, and the other end of the water level detection piece is located in the external pool and used for detecting the water level height of the external pool. According to the water supplementing device, the water level detection piece and the first control valve which are designed in a split mode are adopted, so that the installation position of the water level detection piece can be far away from the first water outlet pipe, the water level detection piece cannot be impacted by water flow, the service life of the water supplementing device is prolonged, the maintenance time is greatly shortened, and then the water supplementing efficiency is improved.

This utility model discloses a water replenishment device for paper coating, including a base, an outer shell on the upper side of the base, and water replenishment shells on both the upper and lower walls of the outer shell. The inner walls of the two water replenishment shells are provided with evenly distributed air jet holes. It also includes an adjustment mechanism. The adjustment mechanism includes a guide groove, a sealing plate, a rotating shaft, a guide wheel, a synchronous drive assembly, and a detection assembly. The guide grooves are symmetrically opened laterally on the left and right walls of the water replenishment shells. Two longitudinally symmetrical sealing plates are installed inside each water replenishment shell. This water replenishment device for paper coating uses two sets of water replenishment elements to simultaneously replenish the upper and lower surfaces of the coated paper, improving the overall water replenishment efficiency. Simultaneously, through transmission and detection elements, the device can precisely adjust the width of the upper and lower water vapor jets according to changes in the paper width, eliminating the need for manual intervention and making it convenient and intelligent to use.

The utility model relates to the technical field of humidification, and discloses a partitioned water supply device which comprises a normal-temperature water tank, a temperature control water tank and an electric heating part. A mounting seat is arranged in the normal-temperature water tank and is used for mounting a wet film; the temperature control water tank is arranged on one side of the normal-temperature water tank, a separator is arranged between the temperature control water tank and the normal-temperature water tank for separation, a communication port is formed in the separator, and the temperature control water tank is communicated with the normal-temperature water tank through the communication port; the electric heating part is arranged in the temperature control water tank and can heat water in the temperature control water tank. According to the partition water supply device, the water supplementing difficulty of the partition water supply device can be reduced, the water supplementing efficiency is improved, and the occupied space of the partition water supply device is reduced. The utility model further discloses a humidifying device.

The invention discloses a converter water cooling system water replenishing control method, which comprises the steps of setting a plurality of monitoring points according to parameters of a pressure storage tank, acquiring pressure data of each monitoring point according to a preset acquisition time node, and generating an operation evaluation value; setting a first water replenishing control strategy and a feedback time interval according to the operation evaluation value, and collecting pressure change data and operation data according to the feedback time interval; generating application difference characteristics according to the pressure change data and the operation data, and obtaining a plurality of second water replenishing control strategies according to the application difference characteristics and a preset correction model; the second water supplementing control strategy is simulated to obtain simulation application difference characteristics, the simulation application difference characteristics are analyzed, the optimal water supplementing control strategy is screened out, and the water supplementing efficiency of the water supplementing system and the operation efficiency of the water cooling system are improved by correcting or adjusting the water supplementing control strategies; and the fault probability of the converter and the wind turbine generator is reduced.