53 results about "Dry water" patented technology

The invention discloses an extreme low water change attribution and low water resource potential evaluation method, which belongs to the technical field of water resource calculation, and comprises the following steps of: obtaining raster data of runoff and driving factors of the runoff in a research area, performing data preprocessing, deducing the frequency distribution of runoff depth of each grid unit by adopting a non-parametric kernel density estimation method, and calculating the runoff depth of each grid unit; and counting the proportion of the grids meeting the guarantee rate runoff depth threshold in each year in the total grid, and further determining a low water typical year under each guarantee rate. A nonlinear regression simulation model of coupling optimization deep learning is adopted to carry out extreme low-water runoff depth regression simulation research under different driving factor combinations, and a key driving factor combination influencing low-water runoff depth change is mined based on a regression simulation precision result; and analyzing the constraint effect of each key driving factor on the extreme low water and a possible threshold value by adopting a constraint line deduction technology, and evaluating the low water resource potential of a typical year of the extreme low water.

The invention discloses a water level-reservoir capacity curve construction method and device based on a remote sensing image. The method comprises the following steps: collecting basic information of a reservoir, actually measured water level data, characteristic value data and a remote sensing image corresponding to the reservoir; matching a corresponding remote sensing image according to reservoir coordinates and actually measured water level data time, extracting reservoir water surface areas in a wet water period, a dry water period and a flat water period, and fitting the reservoir water surface areas with actually measured water level data to obtain a water level-area relation curve; based on the water level-area relation curve, calculating the dead water level area of the reservoir, and based on the dead water level area and the dead storage capacity, calculating the storage capacities of the reservoir in the wet season, the dry season and the flat season; and fitting to obtain a water level-storage capacity curve based on the storage capacity of the reservoir in the wet season, the dry season and the flat season and the actually measured water level data. According to the method, a new thought is provided for constructing the water level-storage capacity curve of the reservoir without data or with data difficult to obtain.

The invention relates to phase change concrete and a preparation method thereof. The concrete comprises the following components by kg / m < 3 >: 450-650 of Yunnan concrete stone; 200 to 400 parts of phase change aggregate; 450 to 550 parts of cement; 40-60 parts of silica fume; 600 to 800 parts of common sand; 5-7 parts of a high-efficiency water reducing agent; and 120 to 140 parts of water. The method comprises the following steps: 1, drying cloud concrete stone needing to pre-adsorb a phase change material in a drying oven until the weight is constant; 2, drying the paraffin phase change material into a liquid state, putting the cloud concrete stone into the liquid paraffin, and carrying out vacuum adsorption; 3, performing third-time modification on the cloud concrete stone after paraffin adsorption by using ultra-high-performance cement mortar twice and foam mortar once respectively; 4, performing saturated surface dry water absorption treatment on the unadsorbed phase-change material cloud concrete stone; and 5, pouring the Yunnan concrete stone, the phase-change aggregate, the cement, the silica fume and the common sand into a concrete mixer, and uniformly mixing to obtain the phase-change concrete.

The invention discloses a gel dry water fire extinguishing agent with high stability and high water-retaining property and a preparation method of the gel dry water fire extinguishing agent. The gel dry water fire extinguishing agent is of a composite structure formed by combining hydrophobic nano silicon dioxide and ferrocene to form an inert shell, combining an anion and nonionic compound solution and a liquid core gel system cross-linking solution to form a gel dry water liquid core, and wrapping the gel dry water liquid core by the inert shell. The preparation method comprises the following steps: S1, preparing an anionic and nonionic compound solution; s2, preparing a liquid core gel system cross-linking solution; s3, mixing and stirring the anionic and nonionic compound solution and the liquid core gel system cross-linking solution to obtain a gel dry water liquid core stock solution; and S4, hydrophobic nano silicon dioxide, ferrocene and the gel dry water liquid core stock solution are mixed and stirred at a high speed through a precise high-speed dispersion machine, tiny liquid drops of the gel dry water liquid core stock solution are evenly wrapped by the hydrophobic nano silicon dioxide and the ferrocene, and finally the gel dry water fire extinguishing agent is formed.

The invention relates to the technical field of fire extinguishing materials, in particular to a fire extinguishing agent and a preparation method thereof.The fire extinguishing agent is prepared from, by weight, 18-20 parts of composite solution, 1.5-2.2 parts of modified silicon dioxide, 0.3-0.4 part of calcium carbonate and 0.08-0.1 part of preservation.The shell material silicon dioxide of the fire extinguishing agent is modified, a composite cross-linking agent is added into a core material composite solution of the fire extinguishing agent, and the fire extinguishing agent is prepared. The problem that an existing dry water fire extinguishing agent shell material is unstable in structure is solved, and meanwhile the fire extinguishing effect is greatly improved.

The invention relates to the field of road traffic marking lines, and particularly discloses an ultra-fast-drying water-based colored thick-coating marking line and a manufacturing method thereof. The marking line is prepared from the following raw materials in parts by weight: 28 to 32 parts of polyacrylic resin emulsion, 0.1 to 0.2 part of conditioning agent, 0.2 to 0.3 part of dispersing agent, 0.1 to 0.2 part of defoaming agent, 15 to 25 parts of titanium dioxide, 15 to 25 parts of silica powder, 2 to 5 parts of wax emulsion, 0.1 to 0.2 part of thickening agent, 1 to 3 parts of aziridine, 15 to 25 parts of glass bead and 0.2 to 0.3 part of macromolecular water-absorbent resin. The drying time of the ultra-fast-drying water-based colored thick-coating marking line is 10-15 minutes, compared with the existing time of 1-2 hours, the drying time of the marking line is greatly shortened, the purpose of quickly opening traffic is achieved, the ultra-fast-drying water-based colored thick-coating marking line has good water resistance, wear resistance and alkali resistance, and the application range of the water-based paint marking line is greatly widened.

The utility model relates to a kelp drying device capable of collecting sea salt. The kelp drying device comprises a drying box, a first sliding plate and a salt collecting structure. An opening is formed in one side of the drying box, a dryer is installed on the other side of the drying box, an air outlet channel is formed in the inner wall of the drying box, and a first sliding rail is arranged on the inner wall of the drying box; the first sliding plate is slidably connected with the first sliding rail, a plurality of U-shaped vertical rods distributed in an array mode are arranged on the top face of the first sliding plate, a pulling plate is arranged at one end of the first sliding plate, and a telescopic supporting rod is arranged on the bottom face of the first sliding plate. The salt collecting structure comprises two guide plates which are symmetrically arranged, a filter plate is arranged between the guide plates, and a collecting box is arranged below the filter plate. According to the kelp drying device, kelp is hung through the U-shaped vertical rod, dried water drops directly drop, the situation that the drying effect of the kelp is affected by the water drops generated during drying is effectively avoided, the drying effect of the kelp is enhanced, the collecting box in the salt collecting structure can collect the water drops and then conduct unified treatment, sea salt is effectively prevented from remaining on the kelp and equipment, and the working efficiency is improved.

The invention discloses a river habitat ecological flow regulation and control device and method based on a multi-objective optimization algorithm, and relates to the technical field of river flow regulation and control. A double-support fixing frame is installed between two lateral confinement baffles, and a plurality of lifting fixing holes are formed in the top end of the double-support fixing frame at equal intervals; a plurality of fixed belt transmission boxes are clamped to the top end of the double-support fixing frame at equal intervals, and transmission motors are installed at the positions, corresponding to input shafts of the fixed belt transmission boxes, of the top end of the double-support fixing frame through motor bases. The drainage position is regulated and treated according to low water and high water, so that the water flow can be stably stored and slowly discharged when the water is low, and can be quickly discharged when the water is high, the overflow condition is avoided, the flow velocity and flow of the water flow are stably regulated and treated according to the actual environment, and the regulation and control effect is ensured.

The invention discloses a DOPO modified dry water explosion suppressant as well as a preparation method and application thereof, and belongs to the technical field of safe chemistry. Adding a silane coupling agent into the DOPO solution, and stirring to obtain a DOPO type silane coupling agent; the preparation method comprises the following steps: adding a DOPO type silane coupling agent into fumed silica, stirring or carrying out ultrasonic dispersion, filtering and drying to obtain DOPO modified fumed silica, then adding the DOPO modified fumed silica into water or an explosion suppressant solution, and stirring to obtain the DOPO modified dry water explosion suppressant. According to the invention, the dry core material and wall material are modified, so that the explosion suppression performance is obviously improved. Due to the addition of DOPO, the dry water is endowed with good flame retardant property, and flame propagation can be effectively inhibited under the condition of high temperature or a fire source; the composite use of the explosion suppressant enhances the explosion suppression effect of the dry water, a composite material with higher explosion suppression performance is formed, the types of the explosion suppressant can be adjusted according to the actual application environment, and the explosion suppressant can be widely applied to the explosion-proof requirements in different scenes.

The invention relates to a surface mine low-pollution drainage water treatment method, and belongs to the technical field of drainage water treatment. Comprising the following steps: (1) standing and settling to-be-treated drainage water for a period of time; (2) sequentially adding sodium hypochlorite, PAC and PAM into the drained water after standing and settling, and stirring to purify the drained water; (3) carrying out oxygen aeration treatment on the drained water subjected to purification treatment in the step (2); and (4) standing and settling the aerated drained water for a period of time to obtain the upgraded drained water. According to the treatment method, on-site treatment is conducted on the basis of an existing site, only an aeration device and an agent adding device need to be additionally arranged, the equipment investment is small, the treatment process is simple, and efficient treatment on the low-pollution drainage water of the surface mine can be achieved through sodium hypochlorite, PAC and PAM.

The utility model discloses a dry-type water meter counter which comprises a transparent upper cover and a lower shell with an upward opening which are buckled and sealed to form a totally-closed shell, and a counting mechanism is wrapped in the totally-closed shell; a first annular step surface is arranged on the outer circumference of the upper end of the lower shell; a second annular step surface is arranged on the inner wall of the circular barrel of the transparent upper cover; a plurality of outward radial convex blocks are arranged on the outer circumference of the lower shell below the first annular step surface; a plurality of radial through holes which are in one-to-one correspondence with the plurality of outward radial convex blocks and are used for mutually clamping are formed in the circumferential wall of the lower end of the circular barrel of the transparent upper cover; and a sealing ring which is made of a high-resilience material and is compressed to a half of the original height is arranged between the first annular step surface and the second annular step surface. The dry-type water meter counter can prevent water vapor from entering the upper cover from the joint of the upper cover and the lower shell within the shelf life of 6 years so as to ensure that the reading of the counter can be seen clearly, the insertion process is smooth and fast, and the clamping connection is firm and reliable after insertion.

The production device comprises a shell, a drying groove is formed in the front side of the shell, a sealing door is installed at a groove opening of the drying groove, and a handle is installed on the sealing door; the placing mechanism comprises a rotating shaft rotationally connected between the upper inner wall and the lower inner wall of the drying groove, the placing mechanism comprises a plurality of mounting strips fixedly connected to the side wall of the rotating shaft, the other side of each mounting strip is fixedly connected with a placing plate, and a placing groove is formed in the upper end of each placing plate; a plurality of openings are formed in each placing plate in a penetrating manner; and the heating mechanism comprises a hollow disc arranged at the bottom in the shell. In the actual use process of the device, the overall drying efficiency is effectively improved, and during drying, a cyclic heating mode is adopted, so that heat energy waste is reduced, and meanwhile, water vapor generated during drying can be treated.

The utility model relates to the technical field of copper strip processing, and discloses an air drying device for copper strip processing, which comprises a box body, a side air mechanism and an air uniformizing mechanism, a feed port and a discharge port are respectively arranged on two sides of the box body, and a first conveying roller group and a second conveying roller group are respectively arranged on one side, close to the feed port and the discharge port, in the box body. The feeding device is used for feeding and discharging copper strips; the crosswind mechanism is arranged between the first conveying roller set and the wind uniformizing mechanism and used for blowing water stains on the surface of the copper strip to be flat; the air uniformizing mechanism is arranged between the side air mechanism and the second conveying roller set and used for drying water stains generated after the surface of the copper strip is blown to be flat. Through the arrangement of the crosswind mechanism, water stains with different heights on the washed copper strip are blown to be flat, the surface area of the water stains is increased, and the follow-up water stain volatilization efficiency is improved; and through the arrangement of the air uniformizing mechanism, the flatly-blown copper strips are uniformly heated and air-dried, so that the surfaces of the copper strips can be uniformly heated, and the air-drying effect is improved.

This invention discloses a dry-water type carbon dioxide absorbent with photothermal conversion properties, its preparation method, and its application. The dry-water type carbon dioxide absorbent includes an encapsulation material and an organic amine solution encapsulated within the encapsulation material; the encapsulation material includes a hydrophobic material and a light-absorbing material. This absorbent is formed by adhering the hydrophobic and light-absorbing materials to the surface of the organic amine solution through a high-speed moving organic amine solution, thus encapsulating the organic amine solution to form dry-water type liquid beads. The dry-water type carbon dioxide absorbent provided by this invention absorbs and stores energy under sunlight, and performs carbon dioxide desorption and release, so that the desorption-induced heating does not require an additional heat source, reducing regeneration energy consumption.

The invention relates to a wetting reversal agent alkane polyol ether for a drilling fluid as well as preparation and application thereof. The wetting reversal agent alkane polyol ether for the drilling fluid is prepared from ethylenediamine, monohalogenated alkane, 11-dodecenol, ethylene oxide, sodium hydroxide, vinylpyridine, an initiator, normal propyl alcohol and deionized water. The preparation method comprises the following steps: reacting ethylenediamine with monohalogenated alkane to obtain an intermediate product A, reacting 11-dodecenol with ethylene oxide to obtain an intermediate product B, polymerizing the intermediate product B with vinylpyridine to obtain an intermediate product C, mixing the intermediate product A with the intermediate product C, and draining water to obtain the reverse wetting agent alkane polyol ether for the drilling fluid. When the concentration of the reverse wetting agent alkane polyol ether for the drilling fluid is 0.10%, the surface tension of a solution can be reduced to a lower value, and the reverse wetting agent alkane polyol ether for the drilling fluid has very strong adsorbability to the rock surface, can greatly enhance the hydrophilic performance of the rock surface, has good reverse wetting performance, improves the oil extraction efficiency, and is also beneficial to improving the well cementation quality in the later period.

This application belongs to the field of composite material preparation technology, specifically relating to a dry, water-like multiphase nano-fire extinguishing agent material and its preparation method and system. The method includes: cooling a liquid to 0℃-5℃ to obtain a first liquid; forming an aerosol from hydrophobic solid powder under gas-driven conditions; atomizing the first liquid while simultaneously coating the surface of the atomized droplets with the aerosol, thereby obtaining the dry, water-like multiphase nano-fire extinguishing agent material. This method enables real-time preparation with high efficiency. The dry, water-like multiphase nano-fire extinguishing agent material prepared by this method exhibits high structural integrity, high water content and conversion rate, and excellent fire extinguishing performance.

The utility model discloses a mold cleaning device which comprises a mold cleaning tank, and an end face cleaning square pipe, a side face cleaning square pipe and a bottom face cleaning square pipe are sequentially arranged on the inner side of the mold cleaning tank from top to bottom. By means of the three-dimensional layout of the end face cleaning square pipe, the side face cleaning square pipe and the bottom face cleaning square pipe and the combination of the electric three-way valve for switching composite treatment of high-pressure water and high-pressure air, multi-face synchronous cleaning and rapid air-blowing drying of the mold are achieved. Due to the design of the end face inclined high-pressure cleaning head, the side face double-vertical water spraying holes and the bottom face upward high-pressure spraying transverse water pipe, stubborn dirt on all the surfaces of the mold can be thoroughly removed, and cleaning dead corners are avoided; and through linkage of the high-pressure air pump and the electric three-way valve, water stains are quickly dried after cleaning, an additional drying procedure is not needed, and the problems that a traditional device is not thorough in cleaning, and mold corrosion is caused by water stain residues are effectively solved.

The present invention discloses a red tube wall thickness detection device and a detection method. The detection probe is arranged in the water-cooled probe body, and the dry water-cooling system of the water-cooled probe body is used to cool down the detection probe, and the working temperature of the detection probe is controlled below 80 degrees Celsius. The water-cooled probe body is installed in the bridge, and the bridge walks along the outer wall of the red tube by using the moving wheels. The detection probe detects the wall thickness of the red tube in the area passed in real time, and the detection probe automatically transmits the measurement data to the control system in real time by using the data line. The red tube wall thickness detection device of the present invention has a simple structure, good flexibility, is easy to install and use. By using an electromagnetic ultrasonic detection probe plus dry water cooling, the wall thickness detection of an 800°C red tube is realized, changing the passive detection of the wall thickness of centrifugally cast tubes, and providing a feasible solution for automated active on-line detection.

The invention relates to the technical field of geological exploration, and discloses a field preprocessing device for water-based sediments, the field preprocessing device comprises a controller, a mover, a drying mechanism, a drying box, a box body and a containing groove, the drying box, the box body and the containing groove are all arranged on the top side of the mover, the box bodies are all located on the same side of the containing groove, and the containing groove is used for storing tools; the box body is used for storing collected water-based sediments; the drying mechanism is arranged in the drying box, and the drying box is used for containing to-be-dried water-based sediments so that the drying mechanism can conduct air drying on the water-based sediments; the controller is electrically connected with the mover and the drying mechanism, and the controller is used for controlling the mover to move along with a worker so that the drying mechanism can dry all the water-based sediments in the moving process of the mover. According to the technical scheme, sampling and drying are carried out at the same time, drying is not needed after collection is completed, the drying time is shortened in a disguised mode, and the overall efficiency is improved.

The present invention is applicable to the technical field of ecological restoration, and provides a drainage water treatment system for mine ecological restoration, including a separation component; the separation component includes a separation box with a U-shaped longitudinal section; a conveying component is arranged for transmission between each pulley; a pushing component is slidably arranged in the slide; the pushing component includes a slide plate that slides with the slide; the upper surface of the scraper is a first inclined surface; a ball head is fixed at the other end of the slide; the separation box includes a first side wall and a second side wall; a U-shaped groove is circumferentially arranged on the second side wall of the separation box; a corrugated guide plate adapted to the ball head is fixed between the U-shaped grooves; a reset spring is connected between the ball head and the conveyor belt, and the device controls the rotation of the conveying component by conveying drainage water into the separation box, and the drainage water and sludge are discharged through the second filter plate, and the finely crushed rock is conveyed to the discharge port along the first filter plate, falls into the recovery box and is collected, thereby realizing the automatic online circulation separation of the finely crushed rock.

The utility model discloses a blast simulation device for a rocket launching demonstration device, which comprises a base, the top of the base is fixedly connected with a circular fixing seat, the inside of the circular fixing seat is slidably connected with a lifting frame, one side of the lifting frame is fixedly connected with a connecting block, and one end of the connecting block far away from the lifting frame is fixedly connected with a first hollow ring. Nozzles are arranged on the outer side of the first hollow ring at equal intervals; the beneficial effects of the utility model are that through the arrangement of the threaded rod, the sliding block, the second hollow ring, the water storage tank, the water pump and the yellow LED lamp, the function of atomizing liquid water at the tail part of the rocket model is realized, so that air waves generated when a rocket is launched are simulated; through the arrangement of a rotating shaft, a rotating disc, a transmission rod, a sliding groove, a lifting frame, a connecting block, a first hollow ring and an air inlet pipeline, the function of blow-drying water vapor around the circular fixing base is achieved, meanwhile, dust and the like near the circular fixing base can be blown away, and use is convenient.

The invention relates to the technical field of water flow monitoring, in particular to a culvert flow measuring device which comprises a pouring type culvert and further comprises cleaning grooves, a linear groove, a rotating seat, an ultrasonic receiver, an ultrasonic transmitter, a transmission assembly, a desilting belt and a driving assembly. The linear grooves are formed in the four corners of the cleaning groove, the rotating bases are installed in the cleaning groove at equal intervals, and the ultrasonic receivers are installed at the top of the pouring type culvert. The ultrasonic transmitters and the dredging belts are arranged in a staggered mode, and the dredging belts are driven by water flow on the outer side of the culvert to rotate, so that the problem that the flow monitoring precision is greatly reduced due to sediment deposition in the culvert due to the fact that the flow speed of branches in the midstream area of the Yellow River is reduced in the dry season is solved, and the advantages that sediment deposition in the culvert can be avoided; and the flow monitoring precision of the branch in the midstream area of the Yellow River in the dry season is fully ensured.

The application discloses a dry water stemming for mine blasting operation and a working method thereof, which is mainly formed by mixing dry water material, CuCl2+MgCl2 modified dry water material and NaHCO3 modified dry water material, wherein the mass ratio of the dry water material is 89% to 96%, the mass ratio of the CuCl2+MgCl2 modified dry water material is 4% to 10%, and the mass ratio of the NaHCO3 modified dry water material is 0.4% to 1%; the dry water material is formed by gas-phase hydrophobic SiO2 and water under the action of high-speed stirring and shearing; the CuCl2+MgCl2 modified dry water material is formed by gas-phase hydrophobic SiO2 and CuCl2+MgCl2 aqueous solution under the action of high-speed stirring and shearing; and the NaHCO3 modified dry water material is formed by gas-phase hydrophobic SiO2 and NaHCO3 aqueous solution under the action of high-speed stirring and shearing. The application enhances the adsorption effect on the dust, CO, SO2, H2S and NOx after blasting, can better play a plugging role, realizes the purpose of on-site solidification of the blasting smoke, improves the utilization rate of the detonation wave and reduces the harmful effect of blasting.

The utility model discloses a waterproof and dustproof precision speed reducer, and belongs to the technical field of speed reducers. In order to solve the problem that an existing speed reducer cannot absorb and dry water vapor entering the speed reducer, the following technical scheme is provided, the speed reducer comprises a fixing shell and fixing pieces, the fixing pieces are installed on the two sides of the fixing shell, and three sets of threaded fixing holes are formed in the tops of the fixing pieces in a penetrating mode. The humidity controller, the ventilating fan and the drying layer are installed on the fixing shell, when water vapor enters the fixing shell, a control switch in the humidity controller is reversed, electric energy is conveyed into the ventilating fan, the ventilating fan generates suction force on air in the fixing shell, the water vapor is conveyed to the inner side of the drying layer, and the drying layer is dried. The montmorillonite particles in the dry layer absorb water vapor, waterproof treatment in the fixing shell is completed, the rusting speed in the fixing shell is slowed down, and the service life of the fixing shell is prolonged.

A rubber cooling device comprises a cooling water tank (30), the cooling water tank (30) is of an inverted trapezoidal structure with a wide top and a narrow bottom, a feeding carrier roller (31) is arranged at the front end of the top of the cooling water tank (30), a traction assembly (32) is arranged at the rear end of the top of the cooling water tank (30), and an air drying assembly (34) is arranged on the portion, located on the front side of the traction assembly (32), of the cooling water tank (30). And a blowing pipe (35) is arranged on the inner side of the inclined surface at the front end of the cooling water tank (30). The rubber sheet cooling device has the advantages that flattened rubber sheets enter the cooling water tank and are rapidly cooled through water, then attached water spots are dried through the air drying assembly, the cooling speed is high, and the occupied area is small.

The invention relates to a fall detection floor, comprising: a power supply module, a sensor input module, a microcontroller module, a heating module, a network transmission module and an Internet of Things platform. The invention has the following beneficial effects: the fall detection floor is based on an STM32 chip; the heating module is designed to heat and dry water droplets on the surface of the floor; the semiconductor refrigeration sheet in the heating module is used for heating; the thermal conductive pad in the heating module makes full use of heat conduction to make the water on the sole of the pedestrian evaporate quickly, with high thermal efficiency and shortening the drying time of the sole; a gravity sensor is used to detect the sudden change of gravity when the pedestrian passes by, and whether a fall event occurs is determined based on whether normal gravity is restored; a strain resistor is added to determine whether the shape of the force-bearing area is consistent with the contour of the human body, thereby improving the accuracy of judging the fall event; the fall detection floor has a simple structure, and the installation method is suspended laying, which is easy to install and maintain; the Internet of Things platform is convenient for users to debug the temperature condition of the floor.

The utility model belongs to the technical field of ventilation equipment, and discloses a dry-type water pond structure for draining condensate water, which comprises a dry-type water pond body, a liquid level sensor is fixedly mounted on the inner side of the dry-type water pond body, and a controller is fixedly mounted in the middle of the front of the dry-type water pond body. An alarm located on the right side of the controller is fixedly installed on the front face of the dry type water pond body. According to the dry type water pond, the liquid level sensor, the controller and the alarm are arranged, when condensate water in the dry type water pond body submerges the liquid level sensor, the liquid level sensor sends a signal to the controller at the moment, the controller receives the signal and controls the alarm to operate, and therefore the purpose of reminding personnel that the water level in the dry type water pond body is too high is achieved; the problem that condensate water flows out due to the fact that the drainage hole is blocked is solved, the early warning performance of the device is improved, and meanwhile the situation that the condensate water flows out to damage equipment is avoided.

The invention relates to an inert gas / liquid-solid composite modified dry water explosion suppression material as well as a preparation method and application thereof, aiming at the explosion characteristics of a hydrogen / hydrogen storage metal powder composite system, the physical heat absorption explosion suppression effect and the chemical blocking explosion suppression effect of the explosion suppression material are enhanced, and the explosion suppression efficiency is further improved. The invention discloses an inert gas / liquid-solid composite modified dry water explosion suppression material which is prepared from the following raw materials in parts by weight: 80-100 parts of deionized water, 3-5 parts of a salt additive, 3-5 parts of a surfactant, 20-30 parts of perfluorohexanone and 6-9 parts of hydrophobic SiO2. According to the inert gas / liquid-solid composite modified dry water explosion suppression material and the preparation method, the explosion suppression effect is remarkably improved, and the inert gas / liquid-solid composite modified dry water explosion suppression material has the characteristics of cleanness, high efficiency and convenience in storage and use; the method is suitable for popularization and application.

The invention discloses a rapid spraying device and method for inhibiting gas explosion by using a dry water explosion suppressant, the device is arranged above an environmental space, and the device comprises a box body, the exterior of the box body is provided with a sensor group, the interior of the box body is filled with the dry water explosion suppressant, and the bottom of the box body is provided with a plurality of powder sprayers; the nitrogen cylinder group is provided with a pipeline system provided with an electromagnetic valve, one path of the pipeline system is a dry water spraying pipeline, high-pressure nitrogen in a nitrogen cylinder is introduced into a variable-diameter pipeline, so that a small triggering ball is driven to turn on a powder spraying switch, the dry water explosion suppressant in the box body is sprayed out from a powder spraying head, and large-range suppression powder mist is formed above an environmental space; the other pipeline is a nitrogen convection pipeline, extends to the bottom of the environment space from the interior of the box body, releases high-pressure nitrogen in the nitrogen cylinder group from the spray head assembly while releasing the dry water explosion suppressant in the box body, and forms convection with dry water explosion suppressant powder mist sprayed from the upper part, so that the whole environment space is rapidly filled with the dry water explosion suppressant; the effect of rapidly inhibiting methane gas explosion is achieved.

The invention discloses inactive admixture concrete and a mix proportion design method thereof. The method comprises the following steps: collecting machine-made sand tail powder in a dry machine-made sand processing process and measuring performance indexes; the method comprises the following steps: determining the total gelling dosage mj and the dosage mc of each component and a water reducing agent according to the requirements of a structural part on the strength, workability and workability of concrete; correcting and determining the actual water consumption mw based on the slump height required by the construction drawing and the dry water absorption rate of the saturated surface of the machine-made sand tailing powder, and calculating the water-binder ratio w / b; calculating the dosage of coarse and fine aggregates according to a mass method; determining the compressive strength fce of 28-day standard curing mortar according to the cement strength grade fce, g and the surplus coefficient gamma c; calculating the compressive strength fb of the mortar in 28 days according to the influence coefficient of the tail powder; calculating the concrete configuration strength fcu, 0 and the concrete cube compressive strength fcu, k according to the concrete water-binder ratio and the gravel coefficients alpha a and alpha b; and rechecking to obtain the actual required mix proportion. The method has the beneficial effects that the problem of tail powder waste is solved, the concrete performance is improved, and the production cost is reduced.