348results about How to "Eliminate fire hazards" patented technology

The invention relates to a waterproof system for a basement bottom board and a wall surface and a construction method thereof. The construction method comprises the steps of: horizontally spreading and pasting a self-adhesive rubber bituminous waterproof sheet material on a concrete base layer, and building up a brick permanent protection wall outside a preset position of a basement wall surface, wherein the bottom of the brick permanent protection wall is vertically connected with the concrete base layer, the self-adhesive rubber bituminous waterproof sheet material spreads over corners of the basement wall surface and then is upward folded to be spread and pasted on the water attaining surface of the brick permanent protection wall, then the self-adhesive rubber bituminous waterproof sheet material is lapped with another self-adhesive rubber bituminous waterproof sheet material pasted above the brick permanent protection wall, a self-adhesive rubber bituminous waterproof sheet material is pasted on an outer vertical surface of the basement wall surface. The construction method has the advantages of strong construction continuity, fast speed, good construction environment, low cost and the like, eliminates the hidden danger of fire since the heating is avoided in the construction process, is safe and reliable, completely changes and improves the traditional waterproof construction environments and the waterproof construction technology. The waterproof system can be widely applied in basements, underground structures and roofs.

The invention discloses a water-solubility discharging dielectric combination for electrospark wire electrode cutting, comprising the following components: 20 to 46 percent weight of polyalkyl glycol and/or polyatomic alcohol, 2 to 8 percent weight of alkylol amine, 26 to 40 percent weight of water-solubility anti-rust agent, 2 to 4 percent weight of non-ionic surface active agent, 3 to 6 percent weight of anionic surface active agent, 1 to 2 percent weight of thickening agent solution, 0.2 to 1.0 percent weight of anti-foam agent, 0.01 to 0.04 percent weight of copper alloy corrosion inhibitor, 0.2 to 0.5 percent weight of mildew inhibitor, 0.5 to 1.0 percent weight of water quality stabilizing agent and equilibrium amount of distilled water; moreover, all components are simply mixed to obtain the combination. The combination can be used for a long time with zero emission or little emission; meanwhile, the invention does not cause pollution, toxin and harm to work environment and the nature and is nonirritating to human body.

The invention relates to a low-ratio biomass circulating fluidized bed boiler and a combustion method thereof, relating to a circulating fluidized bed boiler and a combustion method thereof and solving the problems of difficult feeding, grate slagging, bed material coking, tempering and output reduction, and the like existing in the operation of traditional grate furnaces and circulating fluidized bed boilers. A middle air chamber corresponds to the middle of a dense-phase area at the lower part, lateral grid plates are arranged between a lateral air chamber and the dense-phase area at the lower part, and a medium-temperature steam-cooled cyclone separator is arranged at the joint between a flue shaft at the tail part and a health outlet of a boiler body, respectively communicated with the flue shaft and the health outlet and communicated with the dense-phase area at the lower part through a material returner. The method adopts a negative-pressure feeding manner so that the fluidization air velocity of a high-speed area of the dense-phase area at the lower part is 4-5 m/s, the fluidization air velocity of a low-speed area is 1.5-2.0 m/s, the temperature of the dense-phase area at the lower part is 650-780 DEG C, and the material circulation ratio is below 10. The invention is suitable for the biomass circulating fluidized bed boiler for an electric power plant.

The invention discloses a method for manufacturing environment-friendly semi-polyurethane leather. The method is characterized in that: polyvinyl chloride (PVC) is taken as a foam layer, water-base cement is taken as an adhesive layer, and the environment-friendly semi-polyurethane (PU) leather is prepared by a transfer coating method. Water-borne polyurethane replaces the traditional solvent-type polyurethane to serve as a surface layer, a surface treatment layer and an adhesive layer of the semi-polyurethane leather, organic pollution is eliminated from the source, organic solvent resourcesare saved, potential safety hazards are eliminated, and the working environment of workers is improved. The content of volatile organic compounds (VOC) of the finished leather is less than 5mg/kg (ofleather), the finished leather is eco-friendly and meets the requirement of ecological semi-PU leather, and other performance of the finished leather is equal to or superior to that of a solvent-typeproduct.

The invention discloses a continuous type alloy steel heat treatment line, solving the problem existing in small-section ultra-long material workpiece heat treatment. The continuous type alloy steel heat treatment line is formed by connecting a continuous type roller hearth heating furnace, a roller hearth type quenching groove and electric heating continuous type roller hearth furnace in series.The heat treatment process comprises the following steps of: carrying out austenitization heating on a workpiece in the continuous type roller hearth heating furnace, rapidly discharging after reaching the process time and then entering into the roller hearth type quenching groove; automatically generating a non-continuous water cold process according to the chemical components and different standards of the workpiece, and rapidly cooling through an immersion or spray mode; and tempering the workpiece which is cooled to room temperature according to the process requirement. The continuous type alloy steel heat treatment line has the advantages that: 1, the quenching, solid solution and normalizing continuous heat treatment of the small-section ultra-long material workpiece are achieved, and the heat treatment is completed on roller beds which are located on the same height and axis; 2, a quenching medium is stable in the rising process, and the workpiece can be simultaneously cooled in the length direction; and 3, fire danger and lamp black pollution are precluded by adopting non-continuous water quenching.

The new-type tobacco flue-curing room has tobacco racks in the inner walls for arranging tobacco leaves; boiler outside the room with sealed flue on the top, re-moistening pot on the boiler cover and boiler tubes on the sides; and the boiler tube has one end extending into the room, the other end connected to the flue and wind distributing boards on the upper side. Tobacco leaves arranged on the racks are flue-cured in three stages under controlled temperature and humidity and the flue-cured tobacco leaves the re-moistened directly to produce high quality tobacco leaf. The method of the present invention is safe and reliable and results in high quality and yield of tobacco leaf.

The invention relates to a fire-fighting early-warning monitoring and intelligent management system based on an internet. The system integrates functions of eight kinds of software, comprising telephone networking early-warning software, wire video monitoring early-warning software, wireless video monitoring early-warning software, mobile video monitoring early-warning software, satellite video monitoring early-warning software, video on demand software, video session software, live video software, and the like, and the functions can be used independently or integratedly by users. The system can perform large-area networking management on fire alarm systems in buildings, and can realize effective monitoring and quick alarm. The system guarantees the normal operation of the fire alarm systems and fire safety facilities, improves the reliability of the fire alarm systems, and reduces the rate of false alarm. Moreover, through the equipment operating data and alarm information of the fire early-warning monitoring intelligent alarm system based on the internet, the developing process of intelligence and networking of city fire management is accelerated, and thus, the integral technology level and the comprehensive capability of fire prevention and reduction are enhanced.

The invention discloses an electric bicycle self-service charging system and method, and the system comprises a hand-held control terminal, a cloud server, and charging equipment. The system is high in safety performance, and a user does not need to carry a charger. The system has functions of full charging/overcharging/overcurrent protection, can effectively eliminate the fire hidden troubles, inputs a safety voltage according to the type of a battery, and prevents the battery from being charging excessively. The system is convenient to use, achieves the automatic authentication for charging, supplies the safety voltage to the electric bicycle for charging, and automatically charges the charging service. The user can carry out online payment or topping-up at a hand-held terminal. The system is simple in structure, is convenient to install, is low in manufacture cost, can automatically complete the whole charging process, does not need a person to attend, and greatly reduces the time cost and manpower cost.

The invention provides a method for performing extraction separation on cobalt and nickel by using a microfluid technology. The method comprises the following steps of: uniformly mixing an extraction agent and diluent which are subjected to homogeneous phase saponification by using a mixed material liquid of Co<2+> and Ni<2+>, using 2-ethyl cthylhexyl phosphonate mono 2-ethyl cthylhexyl ester as the extraction agent and using No.260 solvent oil and using the extraction agent and the diluent as an oil phase; introducing the water phase and the oil phase into a micro-reactor by virtue of two flow pumps; mixing the two phases in the micro-reactor and performing extraction reaction at 25-50 DEG C; and collecting a product at an outlet of the micro-reactor and standing for separating the phases to ensure that Co<2+> enters the oil phase and Ni<2+> stays in the water phase so as to realize extraction separation of cobalt and nickel. According to the method, continuous flow micro-reactor with an enhanced hybrid channel structure is adopted, the extraction separation of cobalt and nickel is carried out, and the reaction time is shortened to be within a micro-second level range, so that single-level cobalt extraction efficiency is obviously improved, and the extraction levels are reduced; and moreover, standing layering on the water phase and the oil phase can be quickly carried out without any emulsion phenomenon.

The invention discloses a fireproof pre-warning monitoring method for an unmanned base station and a system thereof. In the method, threshold values of a sample resistor and a voltage comparator are compared by two sets of power supply abnormal change monitoring circuits so as to obtain whether the power supply has abnormal changes and determine whether to warn or not. The method and the system first detect electric load increase, fire strike and jump spark on alternating current commercial 380V or 220V power supply, and secondly detect load increase (unknown increase) and direct current power supply short-circuit and fire strike on direct current 48V or 24V power supply which is outputted by a switch power supply cabinet for master equipment, so that the portent of a fire disaster in the equipment room of the base station can be found in advance, alternating current power supply can be automatically cut off in time, technicians can be dispatched for checking in the station in time, and fire hazards can be eliminated.

The invention discloses a preparation method of aluminum silver paste. The preparation method comprises the following steps of: putting aluminum powder with stipulated particle size, grinding aid and liquid nitrogen into a vibrating mill which is heat-insulation under the state of bearing the pressure intensity of 6MPa according to certain proportion; grinding for 3-6 hours; vibrating and grinding into a mixture of liquid nitrogen and sheet-shaped aluminum powder; injecting a solid and liquid mixture into a vortrap at high flowing speed through a pump, wherein the mixture (of liquid nitrogen and sheet-shaped aluminum powder) which does not achieve the fine degree returns to the vibrating mill and is grinded continuously; inputting the sheet-shaped aluminum powder with the mass percentage less than 10% of the liquid nitrogen into a stirring container with certain pressure intensity and temperature; injecting solvents and aids required to be mixed in according to proportion; and then stirring and mixing uniformly; and gasifying and discharging the liquid nitrogen, thereby obtaining the aluminum silver paste product in the stirring container. The preparation method of the aluminum silver paste provided by the invention has the advantages that the aluminum silver paste is produced continuously in the liquid nitrogen protection atmosphere, so that the fire disaster hazard of the production process is eliminated; and aluminum powder is grinded by adopting the vibrating mill with high efficiency, and the vibrating mill can save 2/3 of time compared with a ball mill under the same specification and yield, the solvent damage and solvent oil abandoning are avoided, and no pollutant is discharged.

The invention is a fire-retardant composite plastic and making method, which comprising basal material PVC, fillings light CaCO3, ultrafine asbestos powder, antishock modifier CPE, processing modifier ACR, surface processing agent stearic acid, heat stabilizers tribasic calcium stearate, and lead stearate, photostabilizer titanium pigment, and permanent flame retardant tri(2,3-dichloropropyl) phosphate, proportionally, adding them in a hot-mix kneading machine for mechanically commixing modification, then discharging them into a cold mixer to cool to normal temperature, and obtaining the product. It has the advantages of reasonable mixing of raw materials, and simple and convenient preparing process.

The invention refers to a stator paint dropping technique and paint-dropping device. The method: only when the paint dropping heat contacts the stator coil, the insulating paint can be output to droppaint; the paint-dropping device is composed of clamp, paint dropping head, elastic collet, active bracket and vernier bracket. The paint dropping head has the ability to store paint and adopts contact-type and intermittent paint dropping.

The embodiments of the invention disclose a method for reducing heating of a charging cable, and an electronic device. The method comprises the following steps: when it is detected that a charging joint is inserted into a charging port of the electronic device, calculating a first electrical parameter of the charging cable connected with the charging joint; according to the first electrical parameter, determining maximum charging threshold currents of the charging cable; and generating a second instruction, and sending the second instruction to a charging adapter connected with the charging cable to enable currents output by the charging adapter to the charging cable to be smaller than and equal to the maximum charging threshold currents.

The invention discloses a split wall-mounted type air-conditioner indoor room, which comprises a main surrounding frame, a front-surface framework, a heat exchanger and a control box, wherein the front-surface framework is positioned on the main surrounding frame, the heat exchanger is arranged behind the front-surface framework, the control box is positioned on the lateral surface of the heat exchanger, and a heat-exchanger cooling-medium pipe cover for preventing the condensed water of a cooling-medium pipe from dropping onto the control box is sleeved on the cooling-medium pipe on the end surface of the heat exchanger positioned between the heat exchanger and the control box. A control-box cover is formed by being integrated with the heat-exchanger cooling-medium pipe cover, a baffle plate is formed between the heat-exchanger cooling-medium pipe cover and the control-box cover, and the heat-exchanger cooling-medium pipe cover and the control-box cover are divided into respectively-independent cavity bodies through the baffle plate. Through the split wall-mounted type air-conditioner indoor room, the hidden fire danger of air-conditioner operation is eliminated: through the use of the heat-exchanger cooling-medium pipe cover, the condensed water on the surface of the cooling-medium pipe can not flow onto electrical-appliance components, such the control box and the like. The direct contact of a heat-exchanger fin and the main surrounding frame is avoided, and the severe phenomena of icing and the like are prevented from being caused.

The invention belongs to a waterborne nano coil coating and a preparation method thereof. Firstly, an inorganic material with no toxic property, foreign smell and combustion characteristic is used as a basic powder material of a coil coating, a waterborne acrylic emulsion, waterborne epoxy resin, water-soluble functional auxiliaries and other film forming matters are compounded, updated and modified by using a nanotechnology and nano materials, and gaps of large micro materials in a coating structure are filled by using various nano powder materials after the hydration of the coil coating is effectively finished, so that the coating generates a coating function enhancing effect under the synergistic action of multi-effect combination of the nano materials and micro materials, the defect that the performance of the waterborne coil coating prepared by a micrometer technology is lowered is overcome effectively, and the technical performance of the waterborne coil coating is remarkably enhanced. By using the waterborne nano coil coating and the preparation method thereof, the production efficiency is increased, the fire risks and industrial pollution of the traditional solvent type coil coating are eliminated, and meanwhile, the aim of safe, environment-friendly, low-consumption and efficient production is achieved.

The invention discloses a preparation method of aromatic high solid content water-borne polyurethane. The water-borne polyurethane which can be used for manufacturing synthetic leather and has aromatic high solid content of more than or equal to 50 % is obtained by using aromatic isocyanate as the raw material and adopting an interpenetrating network technology, a blocking technology and a post-crosslinking technology. The preparation method comprises the following steps: firstly, preparing water-borne polyurethane A comprising an active end group -NH2; then dispersing a polyurethane prepolymer B sealed by a -NCO end group in the polyurethane A, wherein due to small relative molecular mass and low body viscosity of the polyurethane B, the polyurethane B is very easy to disperse in the polyurethane A; and carrying out molecular-level compounding and interpenetrating on the polyurethane A and the polyurethane B to obtain high solid content water-borne polyurethane resin with concentration of more than or equal to 50 %. The molecular design and synthesis method provided by the invention not only breaks through the bottleneck on a aromatic high solid content water-borne polyurethane preparation technology and reduces cost, but also meets the requirements for technically reducing energy consumption and improving drying speed and physical property of a coating.