296results about How to "No explosion hazard" patented technology

The invention relates to a sludge drying and incineration combined treatment method with good treatment effect, wide sludge adaptability, and safe and stability system. To avoid agglomeration of mechanically dewatered sludge (k) in a fluidized bed dryer (6), a part of dried sludge (c) is premixed with the mechanically dewatered sludge (k) and then fed into the fluidized bed dryer (6). The dried sludge (c) is incinerated into a circulating fluidized bed incinerator (1) to generate superheated vapor. The superheated vapor is condensed to hot water in a heat exchange tube (6-2) of the fluidized bed dryer (6) and then recycled to the circulating fluidized bed incinerator (1). The arrangement of buried pipes (1-3) and fractional air supply inside the circulating fluidized bed incinerator (1) can effectively control the lower temperature of the circulating fluidized bed incinerator (1) to prevent deflagration of dried sludge. The entire system has no emission of pollutants such as unpleasant odor, acidic gases, heavy metals and dioxin; is safe and reliable; and can operate for a long time.

The invention discloses alcohol-based fuel oil which consists of the following components in part by weight: 70 to 75 parts of methanol, 4 to 6 parts of dimethylbenzene, 4 to 6 parts of No.200 solvent oil, 4 to 6 parts of paraffin oil, 4 to 6 parts of glycerol and 5 to 10 parts of water. Flame generated in the burning process of the alcohol-based fuel oil disclosed by the invention is stronger than that generated in the burning process of diesel oil and liquefied petroleum gas; the alcohol-based fuel oil is more completely and more sufficiently burnt; tail gas generated in the burning process of the alcohol-based fuel oil is cleaner and has no odor; and the alcohol-based fuel oil has the advantages of stable performance, high thermal efficiency, economy, safety and no pollution.

The invention discloses a pollution-free low-cost technology for preparing graphene oxide. The technology comprises the following steps: 1, mixing graphite with a strong acid to infiltrate graphite, adding a strong oxidant, and continuously stirring to oxidize and exfoliate graphite layers; 2, centrifuging the obtained reaction solution, recovering the strong acid to be used in a next reaction, slowly pouring the obtained muddy product into deionized water, stirring, washing by using dilute hydrochloric acid, repeatedly cleaning by using deionized water, and centrifuging to obtain monolayer graphene oxide; 3, introducing ammonia gas into wastewater until the pH value approaches 7 to obtain an inorganic fertilizer containing nitrogen, potassium, iron and phosphorus; and 4, concentrating an aqueous solution of graphene oxide, and drying to obtain graphene oxide with high density and high specific surface area. The technology has the advantages of simple, safe and controllable preparation process, less time and energy consumption, no explosion danger and no pollution. The cycle use of concentrated sulfuric acid in the raw material-to-fertilizer process makes all raw materials and elements fully used, so the preparation cost of graphene oxide is greatly reduced.

The invention discloses a method and a device for testing delay of a detonator delay element, and solves the technical problems of danger, long time period, low efficiency and high testing cost in the traditional method for testing the delay of the detonator delay element. The method comprises the following steps of: filling a cut lead delay element into a steel detonator shell of which two ends are open and which has the length of 50-80mm, and fixing the position of the delay element in the detonator shell; arranging a detonating primer at one end of the delay element for exciting delay; putting the detonator shell filled with the delay element in a metal dark chamber; arranging a photoelectric sensor at the other end of the delay element; arranging a chronoscope, connecting an initial signal end with the detonating primer, and connecting a termination signal end with the photoelectric sensor; exciting the delay element by using the detonating primer; and reading data displayed by the chronoscope. By the invention, the delay of the detonator delay element is tested safely in a short time, the testing cost is low, and the measured data is accurate.

The invention relates to a solar air-conditioner comprising a U-shaped heat pipe collector, a lithium bromide absorption-type refrigerating machine, a heat storage water tank, a cold storage water tank, a circulation pump, a cooling tower, an air-cooled coil pipe, an auxiliary oil-fired boiler and an automatic control system. The lithium bromide absorption-type refrigerating machine comprises a high-pressure generator, a low-pressure generator, an evaporator, an absorber, a cooling tower, a cooled heat exchanger, a concentrator and a generator pump. Lithium bromide-water separators are respectively arranged in the high-pressure generator and the low-pressure generator. Surfactants are added in refrigerant solution. The solar air-conditioner does not need to consume lots of energy and has low requirement on heat energy, can utilize various low-grade heat energy besides the solar heat sources, and has good electricity saving and energy saving effects and high economic efficiency. The cold capacity regulating range is wide. Along with the change of external load, the unit can carry out stepless regulation on the cooling capacity within the range from 10% to 100%, and during low load regulation, the heat efficiency hardly falls and the properties are stable; therefore, the solar air-conditioner can better adapt to the requirement of variable load.

The invention discloses a glass detergent. The glass detergent is prepared from the following raw materials in parts by mass: 1-1.3 parts of absolute ethyl alcohol, 0.2-0.3 part of sodium lauryl sulfate, 0.1-0.3 part of ethanol, 0.2-0.3 part of saponin, 0.8-1 part of sodium silicate, 1.5-2 parts of saponin, 2-6 parts of alkanolamide and 90-95 parts of deionized water. The antifogging agent disclosed by the invention is simple in preparation, has two functions of cleaning and fog prevention, and is long in antifogging time, wide in usable range, free of explosion risk and convenient to carry.

The invention relates to a mixed refrigerant suitable for a 120-150K cryogenic temperature region of a single automatic cascading refrigeration system. The mixed refrigerant comprises the following six type refrigerants, by molar concentration, 3-20% of a first type refrigerant which is R740, R728 or a mixture of the R740 and the R728, 5-25% of a second type refrigerant which is R50, R784 or a mixture of the R50 and the R784, 15-30% of a third type refrigerant which is R14, 15-25% of a fourth type refrigerant which is R23, 5-15% of a fifth type refrigerant which is R125, R218, R22, R32 or a mixture of two, three or four of the R125, the R218, the R22 and the R32, and 20-30% of a sixth type refrigerant which is R236fa, R123, R124 or a mixture of two or three of the R236fa, the R123 and the R124. The corresponding mixed refrigerant is obtained through physical mixing at normal temperature, so the temperature of the system can reach 120-150K; and the mixed refrigerant has a good intersolubility with lubricating oil, so the ODP value is almost zero. The mixed refrigerant has the advantages of economy, environmental protection, safety, incombustibility and the like.

The invention discloses a preparation method of a triple shape memory composite material. The method comprises two processes, namely, modification of a double shape memory material and preparation of the triple shape memory composite material. Firstly, the double shape memory material is modified, low-molecular-weight PEG (polyethylene glycol) and epoxy resin are mixed in different proportions, the GTT (glass transition temperature) of the double shape memory material is decreased, the low-molecular-weight PEG dispersed nano-silica and epoxy resin are mixed in different proportions, the GTT of the double shape memory material is increased, the double shape memory material with the low GTT and the double shape memory material with the high GTT are stacked, and the triple shape memory composite material is prepared. The method has the advantages that the technology is simple, preparation conditions are mild, the prepared material has the good shape memory effect and the like.

The invention relates to sludge low-temperature heat pump drying equipment, which comprises a sludge drying chamber, wherein a sludge feeding and distributing device is arranged above one side of thesludge drying chamber; a heat pump system chamber is arranged at one side of the sludge drying chamber; a heat pump system is arranged in the heat pump system chamber; the sludge feeding and distributing device comprises a sludge feeding hopper and a sludge distributing machine which are arranged from top to bottom; the sludge drying chamber is provided with a sludge inlet; the distributing machine is connected with the sludge inlet; a sludge outlet is arranged at the bottom of the sludge drying chamber; and an air filtering device is arranged at the upper part of the sludge drying chamber. Aplurality of layers of conveyor mesh belts are arranged in the middle of the sludge drying chamber, a discharging device is arranged below the lowermost conveyor mesh belt, the discharging device is connected with the sludge outlet, an auxiliary fan is arranged between any two adjacent layers of conveyor mesh belts, and a plurality of main fans are arranged at the bottom of the sludge drying chamber. The sludge low-temperature heat pump drying equipment has the advantages of low drying energy consumption, no secondary pollution, high safety performance, compact structure and small occupied area.

The invention provides a multifunctional coal-fired energy-saving additive for a boiler to remove coke and dust and prevent corrosion. The multifunctional coal-fired energy-saving additive comprises the following components by weight percent: 5-15 percent of potassium nitrate, 1-9 percent of copper nitrate, 4-12 percent of magnesium nitrate, 8-12 percent of zinc, 20-30 percent of sodium chloride,10-20 percent of copper sulphate, 15-25 percent of aluminium nitrate and 1-7 percent of boric acid. The coal-fired additive has little dosage, occupies 0.02-0.05 percent of fuel, does not have toxicity, taste, corrosion or explosion dangers, is harmless for a human body and has no pollution for the environment.

The invention belongs to the technical field of geophysical exploration, relates to a method for detecting chemical weapons abandoned by Japan and buried in land, and is suitable for detecting single-shot or multi-shot chemical weapons which are abandoned by Japan and buried in various depths. The method comprises nine steps of arranging a metal detection work area, carrying out metal detection and marking a shell reaction point, excavating and removing a shell in an excavating while detecting manner, arranging a magnetic method detection work area, carrying out magnetic method detection data acquisition, analyzing a magnetic method detection result, determining the analyzed result, excavating while detecting by using a metal detector and excavating to remove a magnetic anomaly point, and excavating and thoroughly confirming detection. A known shell the buried depth of which is no more than 1 meter and the surface of which is free of metal object interference, a known shell the buried depth of which is more than 1 meter and the surface of which is free of metal object interference, and an area where the surface of a shell is provided with strong metal object interference are distinctively excavated. The method for detecting the chemical weapons abandoned by Japan and buried in land is advantaged by being high in sensitivity, high in safety, high in detection result accuracy, timeliness and reliability and the like.

The invention provides a light curing forming process for a resin lens. The light curing forming process comprises the following steps of raw material blending, raw material pouring, ultraviolet light curing, mold making and postcuring; specifically, blended monomer raw materials are put into a special curing machine after raw material pouring, a to-be-cured mold are sequentially subjected to an IR preheating stage, a UV curing stage, a cooling stage and then discharging; after the mold receives light energy at the UV curing stage, monomers are polymerized into a solid state from the liquid state in the mold; and a preliminarily formed product obtained through mold making is fed into a postcuring furnace, and a finally formed product is obtained after curing. Light-heat combination curing is adopted for the light curing forming process for the resin lens, a forming cycle only needs several minutes, and the light curing forming process is a first creation in China and in the world. The light curing forming process for the resin lens is different from the current resin lens heat curing forming process of which a forming cycle needs twenty hours. The light curing forming process for the resin lens is capable of saving energy, protecting the environment, efficient, high in technological automation, simple and easy to learn. The finished product is more excellent in performance through detection.

The invention relates to an explosion-proof cap of a micro-resistance cylindrical lithium ion battery. The explosion-proof cap comprises an upper cap, a gasket, an explosion-proof membrane with a wall body, an orifice plate and a sealing ring. A plurality of air holes are arranged on the upper cap. The wall body of the explosion-proof membrane is bent and wraps the gasket and the upper cap in the cavity of the explosion-proof membrane. After the explosion-proof membrane wraps the gasket and the upper cap, the explosion-proof membrane is embedded in the sealing ring coated with glue. The orifice plate is embedded at the bottom surface of the sealing ring. The orifice plate is welded with the explosion-proof membrane through laser spot welding. A circular welding platform which protrudes downward is arranged on the bottom surface of the explosion-proof membrane. A prestressed pressure relief ring is formed between the circular welding platform and the bottom surface of the explosion-proof membrane. In combination with the cutting of the prestressed pressure relief ring along a sharp spiny flanged edge in the gasket, the flanging of the cap edge of the upper cap and the tight welding between a convex welding spot on the cap edge and the bent wall body of the explosion-proof membrane, the invention realizes that the explosion-proof membrane can be exploded open when being turned over and the overall internal resistance of the cap is reduced, and has the advantages that the structure is simple, compact and stable, the deformation and the misplacement are not apt to occur, the internal resistance of the cap is low, the battery performance is high, the explosion-proof membrane can be normally exploded open to relieve pressure after the explosion-proof membrane is turned over, the explosion-proof performance is stable and the service life is long.

The invention relates to an environment-friendly liquid fuel with high heating value, comprising the ingredients with the following weight ratio contents: 70-75 of methanol, 10-15% of water, 13-16 turpentine oil and 1-4 of additive. The additive is prepared by hydrogen peroxide with weight percent concentration of 30%, cyclohexane, ferrocene, liquid paraffin and ethanol. The preparation method comprises the following steps: firstly preparing the additive, then adding the methanol, water and turpentine oil into an agitated tank, finally adding the prepared additive in proportion to obtain the product after agitating. The invention has the advantages of low fuel cost, simple and convenient production technique, high heat value of combustion, easy procurement of raw materials, no pollution and saved energy, produces no harmful gases in the process of combustion, thus being convenient, practical, safe and environment-friendly.

The invention relates to an electric heating thermal oil furnace system. Oil in a thermal oil furnace oil cavity of the system is fed into heat equipment through a hot oil pump, and returns to the thermal oil furnace oil cavity to form a cycle; the system is characterized in that a thermal oil furnace is connected with a high-position oil tank, the high-position oil tank and an auxiliary oil tank can form an oil cycle, the auxiliary oil tank is further connected with the thermal oil furnace oil cavity; an electric heating thermal oil device is small in size, mounting is flexible, the device is suitable for being mounted nearby the heat equipment, meanwhile, power serves as a power source, pollution is small, the heat utilization rate is high, the equipment investment is small, and due to the fact that a thermal oil heating system is simple, no water treatment device or more auxiliary devices exist, and a thermal oil boiler bears low pressure, the whole system is small in investment; due to the fact that the system only bears the pump pressure, the thermal oil heating system has no explosion hazards and is safer; the environment-friendly organic carrier thermal oil furnace system mainly has the environment-friendly effects of being extremely small in smoke discharge amount and free of sewage pollution and heat pollution.