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116results about How to "Improve recycling rates" patented technology

Waste and old plastic product recovering apparatus and use method thereof

The invention discloses a waste and old plastic product recovering apparatus, and belongs to the technical field of waste and old plastic products. The apparatus comprises a cleaning chamber. The topof a grinding chamber is provided with a motor (A). The output shaft of the motor (A) is provided with a blade shaft. Blades are arranged on the outer wall of the blade shaft. A first screen is arranged right under the blade shaft. A motor (B) is arranged on the right side of the grinding chamber. The outer wall of a grinding shaft is provided with grinding blades. A second screen is arranged right under the grinding shaft. Two different sets of blades are arranged in the grinding chamber so as to process waste and old plastic products with different shapes and degrees. A draught fan and a heating device are provided. When waste and old plastic products are grinded, the draught fan and the heating device can carry out a high temperature treatment on the waste and old plastic products. Thesubsequent treatment on grinded waste and old plastic products becomes more convenient. The sieve pores of the first screen are larger than sieve pores of the second screen. The grinded plastic products can be grinded for another time. The grinding efficiency is improved and the plastic products are more radically grinded.
Owner:PINGHU DAKE BABY CARRIER

Resource utilization method for metal surface treatment sludge

InactiveCN105884156ASimple processImprove recycling ratesSludge treatmentCalcium/strontium/barium chloridesIonEmulsion
The invention relates to a resource utilization method for metal surface treatment sludge, in particular to resource utilization of stainless steel acid pickling sludge or electroplating sludge, and belongs to sludge pollutant treatment in the steel and metallurgy industry. Hydrochloric acid or nitric acid is adopted as pickle liquor, metal elements in the sludge are acidized and leached, calcium salt sludge hard to dissolve is separated through filter pressing under the condition that the pH is controlled to range from 1.8 to 3.0, the sediment is washed 1-3 times with a diluted hydrochloric acid solution with the pH equal to 3.0+/-0.2, a slightly soluble calcium salt sludge product free of heavy metal pollution is obtained, and the sludge can be used as cement filler or a brickmaking or building material. Furthermore, metal ions in acid leaching filtrate are neutralized with lime emulsion, and a metal hydroxide sludge product is obtained and can be used as a stainless steel smelting material or used for separating single metal elements. Filtrate obtained after metal hydroxide is subjected to filter pressing, and after recycling is carried out 3-5 times, when the concentration of calcium chloride is larger than 20%, evaporation and crystallization are carried out to recycle a calcium chloride product.
Owner:徐超群 +1

Method for recycling zinc oxide waste desulfurizers and co-producing ammonium sulfate

The invention provides a method for recycling zinc oxide waste desulfurizers and co-producing ammonium sulfate, which comprises the following steps: roasting zinc oxide waste desulfurizers at 850-900 DEG C so as to obtain an inactive zinc oxide material; dissolving the inactive zinc oxide material in water so as to obtain fluid, adding a sulfuric acid into the fluid, and after the mixture is completely reacted, filtering the obtained product, so that filter residue and zinc sulfate filtrate are obtained; adding solid ammonium bicarbonate into the zinc sulfate filtrate, reacting at 30-40 DEG C, and in the process of reacting, controlling the pH value of the solution to be 6.8-6.9 until the reaction is completed; keeping the pH value of the solution after the reaction is completely unchanged, raising the temperature of the solution to 60-70 DEG C, and continuing to age the solution under the condition of heat preservation, so that an basic zinc carbonate filter cake and an ammonium sulfate solution are obtained; washing, drying and roasting the basic zinc carbonate filter cake so as to obtain active zinc oxide; and evaporating the ammonium sulfate solution so as to recycle ammonium sulfate. The method for recycling zinc oxide waste desulfurizers and co-producing ammonium sulfate, which is disclosed by the invention, has the advantages of low treatment cost, low environmental pollution, and high zinc recycle rate.
Owner:BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD

Zinc hydrometallurgy novel efficient purification process

ActiveCN107190154AImprove recycling ratesHigh cobalt removal efficiencyPhotography auxillary processesProcess efficiency improvementReplacement methodHydrometallurgy
The invention relates to a zinc hydrometallurgy novel efficient purification process and belongs to the technical field of zinc hydrometallurgy zinc liquid purification production. The zinc hydrometallurgy novel efficient purification process comprises the steps that a main system adopts a zinc powder replacement method (three stages of purification) for removing copper, cadmium, cobalt and other impurity ions in zinc liquid, and an auxiliary system adopts a zinc powder+chemical agent method (four stages of purification) for conducting purification, separation and refinement on the copper, cadmium and cobalt slag. The zinc hydrometallurgy novel efficient purification process has the advantages that (1) the main system adopts the zinc powder replacement process, the purification decontamination ability is high, no impurity is brought into the main system, and plate burning and other risks are avoided; (2) the auxiliary system adopts the zinc powder+chemical agent method for conducting separation and purification on the copper and cadmium slag lixivium, cobalt removing efficiency is high, reaction time is short, comprehensive energy consumption is low, and the separation effect is good; and (3) a barren cadmium solution produced by the auxiliary system can return to the leaching procedure of the main system, the recovery rate of zinc is increased, cadmium ingots, copper slag and cobalt slag which are produced can be sold, cost is lowered, and benefits are increased.
Owner:SOUTHWEST PETROLEUM UNIV

Pitch mixed material warm-mixing and regenerating equipment

The invention discloses pitch mixed material warm-mixing and regenerating equipment. The equipment comprises a pitch mixed material plant-mixing primary system, a pitch mixed material plant-mixing regenerating system, an additive processing system and a tail gas processing system, wherein a pitch sprinkling system in the pitch mixed material plant-mixing primary system is a warm-mixing foam pitch sprinkling system which comprises a foamed pitch foaming device, a foamed pitch water metering device, a pitch metering device and a remote control system. The technical problems of cementation, pitch ageing and the like in traditional pitch mixed material thermal regeneration equipment are effectively solved. The heating temperature required for mixing new aggregate materials and regenerated materials is reduced, and convenience is brought for construction; the pollution of regenerated materials to environment is reduced, so that the working efficiency of the equipment is improved. The equipment has the advantages of simple and practical structure, simplicity in operation and control and stability in work. The equipment is suitable for the production of various pitch mixed materials and regenerated materials, and can be joined and matched with pitch stirring equipment and regenerating equipment for use.
Owner:河南亚龙智能装备有限公司

Sulfuric acid tail gas recovery device

The invention relates to a sulfuric acid tail gas recovery device, belonging to the treatment field of waste gas in industrial production and in particular relates to waste gas treatment in sulfuric acid production. The invention provides a sulfuric acid tail gas recovery device which can use absorbing agents circularly and can be used for low-concentration SO2 concentration retreatment, aiming at solving the problems that in the existing treatment equipment, after waste gas is liquefied, absorbing agents in a sulfuric acid absorption apparatus device cannot be reutilized, and low-concentration SO2 generated during liquification cannot be utilized. The device comprises an absorption tower communicated with a sulfuric acid tail gas inlet, wherein a liquid-enriched pipeline is arranged at the lower end of the absorption tower and is communicated with the upper end of a regeneration tower by a liquid-enriched pump, the regeneration tower is connected with a reboiler, and the regeneration tower is sequentially communicated with a condenser and a gas-liquid separator. The sulfuric acid tail gas recovery device can circularly utilize the absorbing agents in the absorption tower, the low-concentration SO2 can be subjected to concentration retreatment, and the treatment efficiency is improved.
Owner:SHAANXI HUALU CHEM ENVIRONMENTAL PROTECTION

Device and method for nondestructively recycling chips

InactiveCN101856664AEnergy saving and emission reduction effectImprove recycling ratesSolid waste disposalMetal workingEngineering
The invention relates to a device and a method for nondestructively recycling chips. The device comprises a metal working table top used for bearing an intelligent card, a heating unit and a temperature control unit, wherein the heating unit is arranged below the metal working table top; the heating unit is combined with the metal working table top to heat the intelligent card; or the heating unit heats the metal working table top and is embedded in the middle of the metal working table top; and the temperature control unit is used for controlling the heating temperature of the heating unit and is connected with the heating unit. The intelligent card to be recycled is flatly laid on the working table top, the temperature control unit controls temperature value of the heating unit, the heating unit heats the metal working table top to increase the temperature of the metal working table top and soften the substrate of the intelligent card, the chip is nondestructively separated from the softened substrate of the intelligent card, and the chip taken out is encapsulated again and is put into use after electrical property tests. The device and the method can be widely applied in various fields, have high recycling rate of the chip, and can save a large amount of precious resources and capital.
Owner:上海卡美循环技术有限公司

Integrated bunch type radiant boiler and preheating boiler mixed heat recovery device

The invention relates to an integrated bunch type radiant boiler and preheating boiler mixed heat recovery device, which comprises a pressure shell, a synthesis gas inlet, a radiation heat exchange component, a desuperheater component, a slag basin, a heat convection component, and a synthesis gas outlet, wherein the synthesis gas inlet is formed in the top of the pressure shell; the synthesis gas outlet is formed in the upper end of the side wall of the pressure shell; the radiation heat exchange component is longitudinally fixed in the middle of the pressure shell; the heat convection component is arranged between the radiant heat exchange component and the pressure shell; the desuperheater component is fixedly arranged below the heat convection component; and the slag basin is positioned at the lower part inside the pressure shell. The heat recovery device can effectively absorb sensible head in the coarse synthesis gas to generate high-pressure steam or intermediate-pressure steam for power generation or preheating other working media, so as to greatly improve the whole source utilization ratio, and achieve high energy recovery utilization ratio. The whole size of the exhaust boiler can be effectively reduced; manufacturing, transportation and installation are convenient; and the dust deposition problem at the heat convection surface can be eliminated.
Owner:中国东方电气集团有限公司

Circuit board recycling treatment device

The invention discloses a circuit board recycling treatment device. The circuit board recycling treatment device comprises a machine body, the top of the machine body is provided with a material inletin a running through manner, the top of the material inlet is connected with moving plates through springs, the two sides of the material inlet are provided with first air cylinders, and the output ends of the first air cylinders run through the two sides of the material inlet and are connected with impact plates, the upper portion of one side of the machine body is provided with a first motor, the lower portion of one side of the machine body is provided with a second motor, and the circuit board recycling treatment device is further provided with a flow guide plate, the second motor and magnet rods. According to the circuit board recycling treatment device, circuit boards fall to the flow guide plate from a filter screen after being smashed, because the tilt angle of the flow guide plate is relatively gentle, the smashed circuit boards are made to fall slowly, the second motor rotates to make the magnet rods rotate, metal contained inside downward-falling broken blocks is adsorbed by the magnet rods, and the metal adsorbed on the magnet rods is collected manually, the recycling use ratio of the circuit boards is increased, generated dust is collected and treated by a dust remover, and pollution of the dust to the environment is prevented.
Owner:WUHAN POLYTECHNIC UNIVERSITY

Sintering flue gas heating denitration device and sintering flue gas heating denitration method

PendingCN108176221APlay the effect of energy saving and emission reductionImprove recycling ratesGas treatmentCombustion processFlueIndustrial waste
The invention relates to a sintering flue gas heating denitration device and a sintering flue gas heating denitration method, which belong to the field of the treatment of industrial waste gas. The sintering flue gas heating denitration device comprises a denitration tower as well as a gas inlet flue and an exhaust flue which are connected with the denitration tower, the gas inlet flue is connected with an ammonia gas delivery pipe and a flue burner, a flue gas-flue gas reheater used for heat exchanging is connected between the gas inlet flue and the exhaust glue, the exhaust flue is connectedwith a desulphurization tower, and the top of the desulphurization tower is provided with a wet-type electric dust collector. The device effectively recycles the waste heat by adopting an energy two-level recycling method. The sintering flue gas heating denitration method comprises the following steps: heating the sintering flue gas to 300 to 320 DEG C, mixing the sintering flue gas and ammonia gas, and performing catalytic reaction to obtain denitrated pure flue gas; cooling the denitrated flue gas and the sintering flue gas before the heating in a heat exchanging manner to 150 to 160 DEG C,desulphurizing, and dedusting. By adopting the method, the waste heat is recycled by adopting the energy two-level recycling method, thereby saving the energy.
Owner:CHINA CITY ENVIRONMENT PROTECTION ENGINEERING LIMITED COMPANY

Medical product disinfection and sterilization treatment system

The invention belongs to the technical field of medical sterilization equipment and particularly discloses a medical product disinfection and sterilization treatment system. The treatment system comprises a box body, a cleaning unit and a sterilization unit, wherein the box body is divided into an upper part and a lower part; a cleaning cavity is formed in the upper part of the box body; a sterilization cavity and a sewage treatment cavity are formed in the lower part of the box body; medical gloves are cleaned with cleanout fluid and disinfectors by virtue of the cleaning cavity of the box body, sewage after cleaning flows into the lower sewage treatment cavity, and the cleaned medical gloves drop into the lower sterilization cavity; a cover plate is arranged above the box body; the cleaning unit is positioned in the cleaning cavity of the box body; the cleaning unit is used for cleaning and disinfecting the medical gloves; the sterilization unit is positioned in the sterilization cavity below the box body; the sterilization unit is used for performing high-temperature steam sterilization on the medical gloves treated by the cleaning unit so as to realize complete disinfection ofthe medical gloves. According to the treatment system disclosed by the invention, the medical gloves can be subjected to cleaning and two-stage sterilization treatment, and the sterilization effect ofthe medical gloves is excellent.
Owner:TAIZHOU KANGPING MEDICAL TECH CO LTD

Heat exchange circulating system for dyeing machine

The invention relates to the technical field of printing and dyeing equipment, in particular to a heat exchange circulating system for a dyeing machine. The heat exchange circulating system for the dyeing machine comprises the dyeing machine, a heat exchanger, a heat preservation water tank and a cooling pool; the heat exchanger is connected with a steam pipeline, the dyeing machine is connected with the heat exchanger through a guide pipe, a cooling pipe and a heating pipe is arranged in the dyeing machine, a water inlet of the cooling pipe is connected with a cold water pipe connected with the cooling pool, a water outlet of the cooling pipe is connected with a three-way pipe, and the three-way pipe is connected with the cooling pool and the heat preservation water tank; the cooling pool is connected with the heat exchanger through a cooling branch pipe and a cooling return pipe, the heat exchanger is connected with the heat preservation water tank through a connecting pipe, the heat preservation water tank is connected with the heating pipe through a hot water pipe, and an outlet of the heating pipe is connected with the three-way pipe. The heat exchange circulating system for the dyeing machine is high in heat energy recovery utilization rate and capable of reducing heat energy waste and lowering the production cost.
Owner:ZHEJIANG CADY IND

Paper and plastic separation technology of waste paper aluminum plastic composite packaging materials

The invention discloses a paper and plastic separation technology of waste paper aluminum plastic composite packaging materials. The technology comprises two modules of slurry breaking selection and washing concentration, paper and plastic separation and washing can be conveniently carried out on composite packaging materials of tetra pak and the like, paper in the packaging materials is separated out of the paper and aluminum plastic composite materials in a paper slurry manner, no secondary pollution exists in the process, cleaning water can be subject to efficient segmental treatment and recycling through a sewage recycling system, the use amount of water is greatly reduced, and the aims of energy saving and emission reducing are achieved; the separated paper slurry enters the next slurry washing concentration module, and through coarse paper removing purification, cleaning, concentration wiping and other working procedures of paper slurry, paper is efficiently recycled. An aluminum plastic film remaining after paper slurry removal is conveyed to an aluminum plastic separation technology system, through the joint effect of continuous gravity floatation and micro bubble floatation, waste disintegrating slag is separated, and the recycling utilization rate of the plastic broken film is improved.
Owner:漳州市陆海环保产业开发有限公司
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