75results about How to "Reduce production pollution" patented technology

The invention discloses a method for preparing high-activity electroplating grade copper oxide from basic cupric carbonate. According to the method, pure copper, liquid nitrogen and high-purity carbon dioxide are taken as materials to prepare the high-purity basic cupric carbonate through a centrifugal film evaporator or a scraper reaction kettle; the problem of impurities such as chlorine which may be caused by production of the basic cupric carbonate material by the traditional method is avoided; the purity of the basic cupric carbonate is improved; the high-purity low-chorine electroplating grade copper oxide is burnt from the high-purity basic cupric carbonate through a rotary kiln; the defects of inactivation, a plurality of impurities, large labor intensity, un-continuous production, long period, high energy consumption, large cost and the like due to the fact that the basic cupric carbonate at the low-temperature part is not burnt thoroughly and the content is not enough when a pushed slab kiln statically burns while copper oxide at the high-temperature part is burnt to death are overcome; the product activity is ensured; and the method is high in product quality, less in energy consumption, small in cost and more environment-friendly.

The invention discloses a method for continuously preparing high-purity low-chloride electroplating copper oxide. According to the method, pure copper, liquid ammonia and high-purity carbon dioxide are taken as raw materials for producing high-purity basic cupric carbonate, so that the problem of impurities such as chlorine and the like in the conventional method for producing the raw materials of the basic cupric carbonate is avoided and the purity of the basic cupric carbonate is improved; and the high-purity basic cupric carbonate is calcined through a rotary electric furnace without scale on the inner wall for continuously preparing the electroplating copper oxide, so that the shortcomings of low content of the basic cupric carbonate due to no complete combustion of the basic cupric carbonate at the low-temperature part and complete combustion of the copper oxide at the high-temperature part in the static calcining process of a pushed slab kiln, loss of activity, high impurity content, high labor intensity, discontinuity in production, long cycle, high energy consumption, high cost and the like are overcome, the product activity is guaranteed, the product quality is high, the energy consumption is low, the cost is low, and the environment is more protected.

The invention discloses a rotary electric furnace and a method for preparing high-activity electro-plated copper oxide by using the rotary electric furnace. At least one percussion device is arranged on the outer wall of the furnace barrel of the rotary electric furnace, wherein the furnace barrel percussion device comprises a hollow cavity and a sphere; one end of the hollow cavity is open and the other end of the hollow cavity is closed, wherein the opening end is fixed on the outer wall of the furnace barrel; the sphere is movably arranged in the hollow cavity; the sphere moves up and down in the hollow cavity to form a clearance percussion status with the outer wall of the furnace barrel during the rotary process of the furnace barrel; the method for preparing the high-activity electro-plated copper oxide comprises the following steps of: preparing high-purity alkali type copper carbonate by adopting pure copper, liquid ammonia and high-purity carbon dioxide as materials; and obtaining the high-activity electro-plated copper oxide through roasting in the rotary electric furnace. According to the rotary electric furnace and the method for preparing the high-activity electro-plated copper oxide by using the rotary electric furnace, the defect that the low-temperature part is insufficient due to insufficient burning and the high-temperature part is burnt through during a static roasting process of the pushed slab kiln is overcome; moreover, the defects such as inactivity, a plurality of impurities, discontinuous production, long period, high energy consumption, high cost and the like are overcome, so that the activity of the product is ensured. Besides, the product quality is high, the energy consumption is less, the cost is low and the environment-friendliness is better.

The invention discloses a method for movably utilizing waste heat steam and a movable heat accumulation vehicle for supplying steam and hot water. The waste heat steam is input into the movable heat accumulation vehicle; a temporarily stored steam heat accumulator is arranged beside a heat source and used for collecting steam generated when the movable heat accumulation vehicle is absent, and the steam is moved away by the movable heat accumulation vehicle; a client steam heat accumulator is arranged at a client; the steam of the movable heat accumulation vehicle is supplied to the client steam heat accumulator; the movable heat accumulation vehicle can supply the steam, and also can supply the hot water with different temperatures through a built-in coil heat exchanger, so that the defect that a hot water movable heat supply vehicle only can supply the hot water is overcome; and by a method for movably utilizing the waste heat steam to supply the steam and the hot water, the conventional pipeline steam supply mode is changed, a heat supply system can be subjected to peak clipping and valley filling, waste heat resources are utilized to save energy, the emission of corresponding dust, harmful gas and the like is reduced, and energy-saving and emission-reducing effects are achieved.