34results about How to "Overcome the disadvantages of polluting the environment" patented technology

The invention discloses a method for electrolytically refining crude lead. The method comprises the following steps of: adding sodium hydroxide and tartaric acid into water in turn, and stirring to dissolve at normal temperature to obtain a mixed solution; adding lead oxide powder into the mixed solution, dissolving and filtering to obtain filtrate, namely electrolyte; and adding the prepared electrolyte into an electrolytic cell, and switching on direct current for electrolysis by taking a stainless steel plate or a pure lead plate as a cathode and crude lead to be refined as an anode. By the method, smoke and middle slag generated in pyro-refining are avoided, the direct recovery rate of lead and comprehensive recovery rate of valued metals in the refining process are improved, volatile smoke or acid mist cannot be generated, and a defect that electrolyte in a silicofluoric acid system pollutes environment is overcome; meanwhile, the sodium hydroxide and the tartaric acid are added into the electrolyte, so that the sodium hydroxide and the tartaric acid can form a complex with the lead oxide, the concentration of lead ions in the electrolyte is greatly increased and the electrolysis efficiency is improved.

The invention relates to a novel halogen-free environmental friendly fire retarding polypropylene material which comprises the following components (percentage by weight): 40 to 70 percent of polypropylene granules, 25 to 38 percent of halogen-free intumescent fire retardant, 0.5 to 1.5 percent of lubricant, 0.1 to 0.5 percent of antioxidant, 0.5 to 1.5 percent of coupling agent and filler surplus. The polypropylene material is made by the following method: polypropylene granules and other components are evenly mixed inside a high-speed mixer according to certain proportion and then are extruded by a twin screw extruder, cooled down and granulated under the conditions of routine feeding speed, temperature and screw stem rotary speed. With ideal flame retardant property and mechanical property, the polypropylene material is characterized by low smoke, low toxicity and no melt drip as compared with fire-retarding polypropylene, thereby reducing environmental pollution and doing less harm to human body.

The invention discloses a crude lead refining process for lead-acid battery recovery. The crude lead refining process comprises the following steps: stirring and dissolving at normal temperature to prepare a mixed solution, adding lead oxide powder and an additive into the mixed solution, stirring and dissolving at the temperature of 80-100 DEG C and the stirring speed of 800-1000r/min for 5-7 hours, and filtering to obtain an electrolyte; carrying out fire refining on crude lead through a refining device, and respectively casting the crude lead subjected to fire refining and electrodepositedrefined lead in a molten state into a crude lead anode and an electrodeposited lead cathode; and adding the prepared electrolyte into an electrolytic cell, introducing direct current for electrolysis,melting and casting the electrolytic lead obtained by cathode electrodeposition to obtain a pure lead ingot, washing and filter-pressing anode mud, and then sending the anode mud to a noble metal extraction process for treatment. The crude lead refining process disclosed by the invention improves the direct recovery rate of lead in the refining process and the comprehensive recovery rate of various valuable metals, and the electrolytic lead is higher in purity and lower in production cost.

The invention discloses a novel shaving board and a production technology of the novel shaving board. The novel shaving board is composed of saw powder or poor wood such as remaining edges, skin and ends formed by wood machining and inorganic bond materials,. The density of a product is controllable within the range of 0.6g/cm<3> to 1.2g/cm<3>. The production technology comprises the steps that the saw powder or the wood materials are smashed, and then are sieved, so that wooden particles with a certain mesh number can be selected; the sieved-out particles are conveyed to surface modification equipment, and therefore surface modification treatment can be carried out on the particles, and then the particles are manufactured into hydrophobic particles, and the inorganic bond materials and water are added into the hydrophobic particles to be mixed and stirred; stirred mixing materials are conveyed to a rolling machine to be rolled and formed; and finally the formed shaving board is conveyed to a curing chamber to be cured for a certain time, and a finished product is obtained. The shaving board has the advantages of being simple in production technology, rich in raw material source, low in production cost, high in product strength, free of formaldehyde, and resistant to flame; the utilization rate of the wood is greatly improved; and obvious social benefits and economic benefits are achieved.

The invention relates to a processing technology for an electric heating tube. The processing technology includes the following steps: step 1. processing a heating wire, namely a step of mounting theheating wire on a lead rod and performing spot welding; step 2. filling powder, namely a step of changing a rubber plug structure used in a powder filling process, and increasing the creepage distancebetween a rubber plug upper lead rod and a tube nozzle, making the heating wire penetrate into a hollow tube by utilizing a powder filling machine, and filling dense magnesium oxide powder between the heating wire and the hollow tube; step 3. performing riveted joint, namely a step of riveting a tube nozzle rubber plug and the electric heating tube into a hexagon, and tightly connecting the rubber plug and the electric heating tube; step 4. stretching, riveting the pipe nozzle rubber plug and the electric heating tube into the hexagon by utilizing a riveting die to make the rubber plug and the electric heating tube tightly connected; step 5. cutting the rod, namely a step of cutting the lead rod into the rod with the consistent exposed length; and step 6. bending the tube, namely a step of bending the electric heating tube into the tube with a specified shape by utilizing a pipe bender and to meet dimensional requirements of a drawing. The processing technology for the electric heating tube overcomes the shortcomings of wasting materials and polluting environment by dust caused by a traditional process, and has the advantages of simplifying process steps and improving the processing efficiency.

The invention relates to a small-scale machine for making and selling automatically-packaged fresh noodles, and belongs to the field of commercial equipment. The machine comprises a machine frame, a noodle making machine, a paper packaging machine and a control system, wherein the machine frame consists of a plurality of members; the noodle making machine is mounted on the machine frame; a noodle conveying device is mounted under a noodle cutting device; the paper packaging machine is mounted on the machine frame; and the control system is mounted on the machine frame and comprises a control box, a controller, a displayer, a paying system and an information acquisition system. The small-scale machine disclosed by the invention has the characteristics that fresh noodles can be automatically made and sold on site, paper package of the fresh noodles is realized, and the defects that conventional fresh noodle making and selling machine cannot realize automatic package, the package provided by the conventional fresh noodle making and selling machine cannot be matched with sold noodles and plastic bag packages pollute environment are overcome.

The invention discloses a preparation method of a porous pompon-like zinc oxide material. The method comprises the following steps: zinc salt, acrylic acid and glucose or cane sugar which are used as a raw material undergoes a hydrothermal reaction by using distilled water as a solvent in a teflon autoclave at 160-180 DEG C for 6-12 h, so as to generate a zinc oxide microsphere precursor; and the precursor undergoes heat treatment in a muffle furnace at 500 DEG C for 5 h to obtain the porous pompon-like zinc oxide microspheres with diameter being 1-5 microns. The raw materials such as zinc salt, acrylic acid, glucose or cane sugar, etc. are cheap and easily-available and are low-cost. In addition, a surfactant organic additive is not used. Thus, environmental pollution is reduced. The prepared porous pompon-like zinc oxide material has large specific surface area, and has a broad application prospect in the fields of photocatalytic degradation of dyes, sensors, sewage adsorption, antibacterial materials, energy storage, lithium battery and the like.

The invention discloses an inner fireworks barrel and fireworks with the inner fireworks barrel. The inner fireworks barrel comprises a cylindrical barrel body for storing an explosive mixture; a top cover is arranged at the upper end of the barrel body, and while a base is arranged at the lower end of the barrel body; the top cover comprises a cover body, and a first annular sidewall which is axially stretched along the outer round surface of the cover body; the inner wall surface of the first annular sidewall is in connection fitting with the outer round surface of the upper part of the barrel body; the base comprises a base body, and a second annular sidewall which is axially stretched along the outer round surface of the base body; the inner wall surface of the second annular sidewall is in connection fitting with the outer round surface of the lower part of the barrel body; a line guide hole is formed in the base body. According to the inner fireworks barrel, the processing technique is simplified; in addition, the top cover and the base can be conveniently produced by mass, and therefore, the cost is reduced, and the processing efficiency is increased; meanwhile, the structure that the inner wall surface of the annular sidewall is in connection fitting with the upper outer round surface and the lower outer round surface of the barrel body is adopted to reliably ensure the connection reliability of the top cover, the base and the barrel body.

The invention provides a paper packaging machine and belongs to the field of commercial equipment. The paper packaging machine comprises a roll paper feed device, a paperboard forming device and a packaging and output device. The roll paper feed device is mounted on a rack, located above the paperboard forming device and connected with the paperboard forming device. The paperboard forming device is mounted on the rack and located below the roll paper feed device. A paper inlet of the paperboard forming device is connected with a paper outlet of the roll paper feed device. A paperboard feed-out mechanism of the paperboard forming device is connected with the packaging and output device. The packaging and output device is mounted on the rack and located behind the paperboard forming device. A noodle inlet of the packaging and output device corresponds to an outlet of a noodle conveying device of a noodle maker. Power parts of all functional units of the paper packaging machine are connected with a control system. The paper packaging machine has the characteristics that automatic on-site making and selling of fresh noodles can be realized; paper packaging is realized; and the defects that an existing fresh noodle making and selling machine cannot conduct automatic packaging, packages cannot be matched with sold noodles, and plastic bag packages pollute the environment are overcome.

The invention discloses a method for recovering and reusing beryllium in the waste liquid of P measured by the beryllium loading method. The method comprises the following steps: placing the waste liquid containing beryllium after measuring P by the beryllium loading method in a 3000mL beaker, heating and concentrating on an electric furnace Volume, neutralized with alkali, then add ammonia water until beryllium hydroxide precipitates completely; filter with Buchner funnel, wash the precipitate with ammonia water-ammonium nitrate solution or ammonia water-ammonium sulfate solution for 10 times, transfer the precipitate into a beaker, add nitric acid or sulfuric acid Dissolve the precipitate; add ammonia water until the beryllium hydroxide precipitates completely, filter again with a Buchner funnel, wash the precipitate with ammonia water-ammonium nitrate solution or ammonia water-ammonium sulfate solution 10 times, transfer the precipitate into a beaker, add nitric acid or sulfuric acid to dissolve the precipitate. The invention is simple and easy to implement and low in cost. The beryllium salt is recovered and then used for the determination of P, or used for the phosphorus removal step of the determination of tungsten trioxide in high-phosphorus tungsten ore. The beryllium waste liquid is discharged outside, causing the disadvantage of beryllium polluting the environment, and greatly saving the cost of reagents.

The invention provides a heat and power cogeneration solar cooker integrated solar device which comprises a coil base cooker, a light condensation-heat collection suite, a thermal medium circulation assembly, a photovoltaic power generation panel assembly, a power storage tracking control suite and a sun tracking suite. According to the solar motion trail tracking function and structure, sunlight focusing heat collection is achieved, heat needed by a high-temperature heat transfer medium is provided, the heat is provided for the heat storage type cooking bench, and then the effects and purposes that cooking can be conducted in the daytime and at night, and hot water is provided are achieved; the power generation and storage component meets the requirement for tracking the power consumption of a power station and also achieves the effect and purpose of external power supply, and has the advantages that the illumination space is fully utilized, the operation is simple, convenient and reliable, the total efficiency of solar energy is high, and the solar device adapts to the requirements of a cooking bench; according to the heat accumulating type cooking bench, the heat medium circulating assembly and the movable heat control core are matched for use, the requirements of cooking for adjusting and controlling the heat supply intensity can be met, and the heat accumulating type cooking bench has the advantages of being long in service life and high in energy efficiency.

The invention relates to a bubble breaking type thick waterborne elastic middle coating. Raw materials of the coating in a formula comprise components in percentage by mass as follows: 28.00%-32.00% of flexible acrylic emulsion, 0.16%-0.17% of hydroxyethyl cellulose, 2.40%-3.00% of pigment, 46.00%-48.00% of filler, 1.30%-1.99% of a wetting dispersant, 0.21%-0.22% of a neutralizer, 0.08%-0.13% of awaterborne releasing agent, 0.21%-0.24% of an organosilicon defoamer, 0.21%-0.25% of a preservative, 0.90%-0.91% of a thickener, 0.86%-0.96% of a coalescing agent, 1.80%-2.20% of an antifreezing agent, 0.22%-0.43% of PA short fiber and 10.85%-15.53% of water. The invention further relates to a preparation method of the coating. With the adoption of the coating and the preparation method thereof,bubbles are broken quickly in a construction process, and modeling is stable.

The invention relates to a treatment method and application of using polymer waste to regenerate colloid polymer. The method comprises the steps of conducting water separation to collected garbage; conducting crushing and blow drying after washing and spin-drying; conducting constant temperature static soaking to obtain a free radical material; conducting mixing decomposition and synthesis; lastly sending the material in a granulating machine for granulating to obtain a gel body polymer. The treatment method overcomes the shortcoming that the traditional method causes pollution to the environment. The water collection is concentrated to enhance the purity, the separation selection effect is good, the process is simple, the resource recycling rate is high, the problem that garbage occupies large area of land and pollutes the environment is solved. The generated gel body polymer can be used in the application of building waterproof and heat insulation material, road asphalt material, colloid sheet material, colloid pipe material, colloid pipe fittings material and flexible concrete material, and has economical, social and environmental protection benefits, and effectively avoids and controls the secondary pollution to the environment.