34results about How to "Environmentally friendly and efficient" patented technology

The invention relates to a fire fighting method, a fire fighting system and a fire fighting truck with the fire fighting system. The fire fighting method comprises the following steps: absorbing heat by liquid nitrogen flow in a mixer and then gasifying at least part of liquid nitrogen flow into nitrogen gas flow; after striking the nitrogen gas flow with water at high speed, forming a mixture of nitrogen gas and water mist; jetting the mixture of nitrogen gas and water mist to a fire source through a jetting port of the mixer and forming cloudy isolation nearby the fire source; isolating oxygen and reducing the temperature at the fire source, thereby achieving the purpose of fire fighting. According to the invention, the liquid nitrogen and water are mixed and then the mixture of nitrogen gas and water mist is outward jetted; the mist mixture is coated on the fire source; on one hand, the water mist absorbs heat and then is quickly gasified; on the other hand, the nitrogen gas is quickly coated on the fire source; the oxidizing reaction speed in combustion is restrained; the oxygen is effectively isolated; the fire fighting method has dual functions and advantages of water spraying and inert gas fire-fighting; after use, the environment in the place of the fire source is not polluted; the method has the advantages of environmental protection and high efficiency.

The invention discloses a driving system for a mining hybrid power trackless rubber-tyred vehicle, belonging to the technical field of driving devices. The driving system comprises an engine, a generator, a storage battery, an illumination signal lamp, an electric horn, a display screen, an operation box, a pedal switch, a control device and a motor, wherein the engine is electrically connected with the generator, the illumination signal lamp and the electric horn are electrically connected with the storage battery, the generator, the operation box, the pedal switch, the display screen, the storage battery and the motor are all electrically connected with the control device. The driving system is characterized by further comprising a coupling device, wherein the generator, the control device and the motor are electrically connected with the coupling device, and the coupling device is electrically connected with the driving axle of the trackless rubber-tyred vehicle. The driving system has the beneficial effects that as the driving system for the hybrid power trackless rubber-tyred vehicle is jointly driven by the engine and the storage battery, the driving system has the advantages of the sufficient power and the strong endurance capability of a diesel engine as well as the environment protection, high efficiency and the flexibility of the storage battery, and multiple operational modes of the driving system are suitable for complex road situations under a shaft.

The invention discloses environment-friendly composting treatment equipment for solid-liquid livestock breeding waste. According to the equipment in the invention, an extrusion disc, a drainage groove, an arc-shaped plate and a collection hopper are arranged, so solid-liquid mixed waste can be subjected to separation treatment; the solid-liquid waste is subjected to centralized extrusion through the extrusion disc; after the liquid is separated from the solid, the liquid enters a drainage groove from first filtering holes and is then collected in a first liquid waste collecting box in a centralized manner; an L-shaped cleaning scraping plate and a movable extrusion block are arranged, so waste adhered onto the bottom end face of the extrusion disc can be extruded in a centralized manner; and on the other hand, through the arrangement of an auxiliary solid-liquid separation treatment mechanism, solid-liquid waste can be well separated, separated solid waste and separated liquid waste can be well treated, no pollution is caused to the environment, and environmental protection and high efficiency are achieved.

The invention discloses an impurity removal and purification device for feldspar ceramic raw materials. The impurity removal and purification device comprises an outer cylinder and an inner cylinder, the inner cylinder is rotationally arranged in the axis of the outer cylinder, a rotating mechanism is arranged at the outer end of the outer cylinder, a material cavity is formed in the area between the outer wall of the inner cylinder and the inner wall of the outer cylinder, and a feeding port and a discharging port which are communicated with the two ends of the material cavity are formed in the two ends of the side wall of the outer cylinder correspondingly; a material pushing spiral blade is spirally fixed on the outer wall of the inner cylinder, the outer edge of the material pushing spiral blade is in sliding connection with the inner wall of the outer cylinder and divides the material cavity into a spiral channel, a plurality of electromagnets used for adsorbing magnetic impurities in the material cavity are installed on the inner wall of the inner cylinder, and a material turning mechanism used for turning raw materials in the material cavity is arranged between the inner wall of the outer cylinder and the outer wall of the inner cylinder; and the magnetic adsorption process of the raw materials can be effectively improved through the spiral material pushing adsorption magnetic channel, magnetic impurities are removed while the passing ability of the raw materials is guaranteed, the raw materials are fully adsorbed through the material overturning mechanism, and the impurity removal process is rapid and environmentally friendly.

The invention discloses an environment-friendly animal husbandry solid-liquid waste composting treatment equipment. The extrusion disk, drainage groove, arc-shaped plate and collecting hopper provided in the invention can separate and process solid-liquid mixed waste. The extrusion disc squeezes the solid and liquid waste in a concentrated manner. After the liquid and solid are separated, they will enter the drainage groove from the first filter hole, and then be collected in the first liquid waste collection box, and pass through the set L-shaped The cleaning scraper and the movable extrusion block can also clean up the waste adhered to the bottom surface of the extrusion disc. On the other hand, the solid-liquid separation treatment auxiliary mechanism can be used to separate the solid-liquid waste well. Treatment, and the separated solid waste and liquid waste can be well treated, will not pollute the environment, and is environmentally friendly and efficient.

The invention provides an aluminium zinc phosphomolybdate compounded rustproof pigment which takes aluminium zinc phosphate, zinc molybdate, aluminium phosphate and the like as main raw materials to synthesise aluminium zinc phosphomolybdate compounded rustproof pigment. The rustproof pigment is prepared from the following raw materials in parts by weight: 50-75 parts of aluminium zinc phosphomolybdate, 10-20 parts of aluminium phosphate, 3-10 parts of zinc oxide, 1-8 parts of barium sulphate, 0.5-5 parts of zinc molybdate and 0.1-0.5 part of accessory ingredient. The preparation method comprises the following steps: (1) after a certain quantity of water is added into an agitated reactor, successively adding the aluminium zinc phosphate, aluminium phosphate and zinc molybdate into an agitated reactor under the condition of stirring, stirring at the temperature of 50-100 DEG C; (2) fully stirring the materials with barium sulfate and zinc oxide, and carrying out modified treatment; (3)cooling the materials to be below 50 DEG C, and adding the accessory ingredient to carry out surface treatment; and (4) carrying out centrifugal dehydration, drying, smashing, weighting and packaginginto products. The invention has the characteristics of no toxin, environment protection and high efficiency of the rustproof pigment and can completely replace the traditional toxic heavy metal rustproof pigment, such as red lead, zinc chrome and the like in the industrial pigment.

The invention provides a method for preparing a foamed silver catalyst based on a supercritical carbon dioxide foaming technology. The method comprises the following steps: plasticizing and modifyingpolyvinyl alcohol, preparing a PVA / AgNO3 composite plate by adopting a mould pressing method, preparing a PVA / AgNO3 composite foam material by adopting a supercritical carbon dioxide kettle pressure foaming method, and performing in-situ solid-state reaction on the obtained composite foam material, thereby obtaining the foamed silver catalyst. According to the invention, process conditions are optimized and combined; the foam pore structure is optimized, so that the foamed silver catalyst with characteristics of good catalytic efficiency and certain mechanical strength is obtained after the in-situ solid phase reaction, the foam pore size distribution of the foamed silver catalyst prepared through the method is uniform, the product is pure, and the catalytic performance is significantly superior to that of the similar products on the market.

The invention discloses a small-radius bending and curling method of a magnesium alloy plate, which comprises the following steps: performing hot rough rolling, hot intermediate rolling and hot finish rolling on the magnesium alloy sequentially under corresponding temperature conditions; water cooling the thin plate to room temperature after heat treatment; Heating treatment at the edge of the curling; put it into a cold mold for forming and quenching, and complete the bending and curling of the magnesium alloy sheet. The present invention can adopt multiple heating methods to heat the curling part, and then combine the hot stamping forming process to carry out curling and bending, which can obviously improve the curling problem of the magnesium alloy plate, and has good surface quality and mechanical properties.

The invention relates to the field of graphene-based foam composites, in particular to a light flexible graphene / polymer foam electromagnetic shielding material, and a preparation method and an application thereof. The preparation method comprises the steps that three-dimensional full-communicated metal foam grown with graphene and a high molecular polymer precursor are adopted; a graphene / metal foam complex is mixed with the high molecular polymer precursor to ensure that the surface of the graphene / metal foam complex is coated with a layer of high molecular polymer precursor; the high molecular polymer precursor in a mixture is cured and then dissolved to remove a porous metal base; and then the light flexible graphene / polymer foam electromagnetic shielding material is obtained. The graphene / polymer foam composite has very low density and good flexibility, and graphene in the graphene / polymer foam composite forms a full-communicated network in a seamless connection manner, so that the composite has excellent conductivity and electromagnetic shielding property, and can be widely applied to the fields of aerospaces, portable electronic devices and the like.

The invention discloses an electronic device for trapping and killing mosquitoes with an environmental lamp, relates to the technical field of daily necessities, and is specifically a mosquito killing device. At present, many chemicals are used to kill mosquitoes, which cannot be reused, and the side effects are not small. This invention aims to provide a reusable, safe and low-side-effect mosquito killing device. To achieve this goal, the technical solution of this invention includes the following technical content; an electronic device for trapping and killing mosquitoes with environmental protection lamps, which is characterized by: : photocatalytic net and mosquito trapping mosquito box, wind vortex suction box; also includes a dead mosquito collection box; lifting plate is a sphere assembled from multiple plates; also includes a number of circuits and electronic equipment equipped with each other ; The bottom surface of the body also includes: a photocatalytic net and a mosquito trap lamp. In summary, this invention has beneficial effects of environmental protection and high efficiency.

The invention discloses a driving system for a mining hybrid power trackless rubber-tyred vehicle, belonging to the technical field of driving devices. The driving system comprises an engine, a generator, a storage battery, an illumination signal lamp, an electric horn, a display screen, an operation box, a pedal switch, a control device and a motor, wherein the engine is electrically connected with the generator, the illumination signal lamp and the electric horn are electrically connected with the storage battery, the generator, the operation box, the pedal switch, the display screen, the storage battery and the motor are all electrically connected with the control device. The driving system is characterized by further comprising a coupling device, wherein the generator, the control device and the motor are electrically connected with the coupling device, and the coupling device is electrically connected with the driving axle of the trackless rubber-tyred vehicle. The driving system has the beneficial effects that as the driving system for the hybrid power trackless rubber-tyred vehicle is jointly driven by the engine and the storage battery, the driving system has the advantages of the sufficient power and the strong endurance capability of a diesel engine as well as the environment protection, high efficiency and the flexibility of the storage battery, and multiple operational modes of the driving system are suitable for complex road situations under a shaft.

The invention provides a preparation of a non-halogen fire retardant containing phosphorus and molybdenum by polymeric aluminum phosphate, zinc molybdate and hydroxides which are used as main raw materials. The fire retardant comprises the following raw materials, in parts by weight: 50 to 90 of polymeric aluminum phosphate, 3 to 20 of zinc molybdate, 5 to 30 of hydroxides, 1 to 10 of silicon dioxide, and 0.1 to 0.5 of a coupling agent. The preparation method comprises: (1) after adding a certain amount of water into a reaction kettle, under a stirring condition, successively adding zinc molybdate, the hydroxides and silicon dioxide into the reaction kettle, and carrying out a reaction with stirring; (2) adding polymeric aluminum phosphate into the above materials, and fully stirring; and (3) after centrifugal dewatering, adding the coupling agent for processing during drying process, then crushing, weighing, packaging to obtain the product. The non-halogen fire retardant has the characteristics of environmental protection and high efficiency, and can be used in fire retardance of paints and engineering plastics.

The invention discloses an industrial waste slag multi-component composite shield tunnel wall grouting material and a preparation method thereof. The material contains the following raw materials in parts by weight: 50-70 parts of fly ash, 10-30 parts of blast furnace slag fine powder , 10-30 parts of inert steel slag powder, 35-55 parts of alkaline activator, 150-200 parts of fine sand, 1-2 parts of water reducing agent, 0-0.5 parts of retarder, 80-120 parts of water. The method comprises the following steps: adding sodium hydroxide into sodium water glass to configure a modified sodium silicate solution; adding water to the modified sodium silicate solution to configure an activator solution, sealing it with a polyethylene film, and cooling and set aside; weigh fly ash, blast furnace slag fine powder, inert steel slag fine powder, fine sand, water reducer, retarder, and then put them into a mixer and stir evenly; The activator solution was mixed in proportion and stirred evenly. The preparation method of the invention is simple, low in cost, has the advantages of environmental protection, high efficiency and resource recycling, and has broad application prospects.

The invention discloses an in-situ repair method for heavy metal polluted soil; chitosan and iron salt are mixed to prepare spinning solution, and chitosan / zero-valent nano-iron composite fiber is obtained through electrostatic spinning, and then passed through a twisting machine Twist with glass fiber to make a composite adsorption rope with heavy metal adsorption and reduction ability and a certain strength, and make it into a net, bury it in the soil polluted by heavy metals, take it out after a period of time, and complete the in-situ adsorption and removal of heavy metals in the soil . This method realizes the in-situ remediation of heavy metal-contaminated soil, is environmentally friendly, efficient, and easy to operate, and overcomes the disadvantage that traditional adsorption materials are difficult to separate from the soil.