34results about How to "Realize energy-saving production" patented technology

The invention belongs to the field of production and manufacture system energy saving control, and specifically discloses a manufacture system fuzzy control energy saving method based on real-time production data. The manufacture system fuzzy control energy saving method comprises the following steps: (1) obtaining the amount of products in process in the upstream relief area and the amount of products in a downstream relief area in real time to serve as two input variables for fuzzy judgment; (2) on the basis of the amount of products in process in the upstream relief area and the amount of products in the downstream relief area, adopting a fuzzy judgment rule to carry out fuzzy judgment to obtain a fuzzy control output value; (3) comparing the fuzzy control output value with a preset threshold value, judging whether the fuzzy control output value is smaller than the preset threshold value or not, if the fuzzy control output value is smaller than the preset threshold value, halting amachine which runs at present, and otherwise, keeping the current state. By use of the manufacture system fuzzy control energy saving method based on the real-time production data, the effective control of the energy consumption of the production system can be realized, and the manufacture system fuzzy control energy saving method has the advantages of convenience in operation, high applicabilityand the like.

The invention discloses an efficient preparation process of an aluminum alloy plate for an automobile body. The efficient preparation process comprises the following steps that (1) aluminum alloy casting is conducted; (2) homogenization heat treatment is conducted; (3) a blank is subjected to hot rolling and / or cold rolling to obtain a plate strip coiled material; and (4) the plate strip coiled material is subjected to continuous on-line treatment comprising working procedures such as pre-aging heating, oil smearing, coiling and temperature control cooling treatment. The strip material is heated with the heating rate V and subjected to continuous temperature rising to the temperature T1 in a pre-aging heating device, then the strip material is subjected to the working procedures of continuous oil smearing and coiling, after coiling, the temperature of the coiled material is T2, finally the coil material is subjected to temperature control cooling for the time t and cooled to 60 DEG C or below, and the treatment is finished. V heating is larger than or equal to 1 DEG C / s and smaller than or equal to 30 DEG C / s; T1 is larger than or equal to 90 DEG C and smaller than or equal to 150 DEG C; T2 is larger than or equal to 70 DEG C and smaller than or equal to 120 DEG C; T1 is larger than or equal to T2+15 DEG C; and T is larger than or equal to 60 min and smaller than or equal to 900 min. The prominent problem that the traditional pre-aging technology occupies long time for a continuous production line, and the production efficiency is low is better solved, and efficient and energy-saving production of the plate is realized.

The invention discloses solar fruit and vegetable hot air vacuum combined drying equipment and a drying method. The solar fruit and vegetable hot air vacuum combined drying equipment mainly comprises an air pre-heater, an intelligent controller, a solar water heater, a vacuum pump, a water catcher, a drying box, a hot air auxiliary heater, a draught fan and the like. A 'hot air-vacuum' combined drying technology is adopted, not only can the advantages of high drying efficiency and good economy of 'hot air' be displayed, but also the advantages of dryness, sanitation, sterilization, freshness preservation, low temperature, high efficiency and the like 'vacuum' can be utilized, so that not only can the final product which is dried maintain the original color, flavor, taste and appearance, but also various physical activity nutrients in fruit and vegetables can be best preserved; solar energy serves as a main drying heat source, so that solar radiant energy can be fully utilized, a lot of conventional energy can be saved, energy is saved, environment is protected and economic benefits are significant; and an automatic control technology is adopted, so that the automation degree of the equipment is high, and the operation is simple and convenient.

The invention discloses a drying room and a method for dehydration through the drying room. The drying room comprises an air freshening machine dew point cooler, an oscillating heat pipe, a duplex electric air valve, an exhaust air waste heat recovery wind cabinet, surface air coolers and fans; and an air inlet is formed in an entrance of the drying room, and an air exhaust port is formed in the drying room. The invention further provides the method for dehydration through the drying room. After entering the drying room, fresh air carries out heat exchange with the air freshening machine dew point cooler and then carries out heat exchange with the oscillating heat pipe, air on the top of the drying room carries out heat exchange with the surface air coolers and then carries out heat exchange with the oscillating heat pipe, and therefore the air can be cooled; and heat of cold water is absorbed after the cold water passes through the air freshening machine dew point cooler, the surface air coolers and the oscillating heat pipe, and therefore energy-saving production of air dehydrating and drying can be realized.

The invention belongs to the technical field of chemical production, and relates to a method for producing sodium silicate by utilizing sodium sulfate. The method can also be used for producing the sodium silicate or white carbon black. The method comprises the following steps of (1) raw material preparation: putting sodium sulfate, quartz sand and a reducing agent into a smelting reduction furnace according to a certain mass ratio; (2) reduction reaction: carrying out a heating reaction on the raw materials in the smelting reduction furnace and simultaneously stirring the raw materials; (3) product obtaining: carrying out water quenching on a sodium silicate melt body, which is generated after the reaction is completed, to make the sodium silicate melt body into a sodium silicate product, and collecting SO2 gas generated in the reaction to prepare concentrated sulfuric acid. The method disclosed by the invention is simple in technological process and low in energy consumption, the purity of the generated sodium silicate product is high, SO2 can be totally recycled, and the method has the characteristics of energy conservation, environment protection and the like.

The invention discloses a method for preparing nano-zinc oxide by a metal zinc non-equlibrium oxidation method. The method comprises the following steps: using carbon dioxide as an oxidizing agent foroxidizing metal zinc vapor, and synthesizing the zinc oxide, wherein while the metal zinc is fused and evaporated, the carbon dioxide is provided by smoke generated by burning a fuel; and providing the fuel for the fusion and the evaporation of the metal zinc by a coal gas generated in the oxidation process. In the reaction process of the method, other energy sources are not consumed. The methodhas the characteristics of high energy utilization efficiency, good product quality and low production cost. In the production process, an external heat source does not need to be consumed, so the economic benefit is better. A zinc oxide product obtained by the CO2 zinc oxide vapor has the characteristics of small particle size, good property and extensive use.

The present invention provides an anode lifting device used in aluminum electrolytic cell equipment including a cathode and a plurality of anodes, characterized in that the anode lifting device includes a transmission assembly and a drive assembly, wherein: the drive assembly and the transmission The components are connected, and the driving component drives one of the multiple anodes to move up and down through the transmission component, so that the anode is close to or far away from the cathode when the aluminum electrolytic cell is in an energized state. In this application, by setting the anode lifting device corresponding to each anode, the adjustment of the position of each anode can be realized when the electrolytic cell is powered on, so that the distance between each anode and the cathode can be adjusted more finely, and the aluminum liquid can be weakened. The fluctuation at the bottom of the tank reduces the pole distance, improves the current efficiency, and realizes energy saving in the production process.

The invention discloses a method for producing an iron alloy and refining slag through steel slag aluminothermic reduction. Liquid state steel slag and metallic aluminum are contained into a first reactor according to a certain mass ratio to be stirred to obtain phosphorus containing pig iron, the remaining liquid state steel slag and metallic aluminum obtained after reacting are contained into a second reactor according to a certain mass ratio to be stirred to obtain silicomanganese, and molten slag obtained after reacting in the second step serves as the steel-making refining slag. The obtained phosphorus containing pig iron and silicomanganese can be used for producing special steel, and the refining slag can be used for producing clean steel. The method has the beneficial effects that aluminum simple substance is led into the steel slag, the problems that the steel slag resource recovery rate is low, and the added value of products is low are solved, and meanwhile, efficient utilization of liquid state steel slag sensible heat and comprehensive recycling of iron, phosphorus, manganese, silicon and molten slag in the steel slag are achieved.

The invention provides a method for producing nickel-containing molten iron by smelting and reducing liquid-state nickel slag. The method comprises the following steps: feeding liquid-state nickel slag and a reducing agent into a smelting and reducing furnace according to a predetermined mass ratio; enabling the liquid-state nickel slag and the reducing agent to react in the smelting and reducing furnace, and stirring at the same time; and generating nickel-containing molten iron and smelting slag after the reaction is ended, wherein the nickel-containing molten iron is at the lower layer of the smelting and reducing furnace, and the smelting slag is at the upper layer of the nickel-containing molten iron. The nickel-containing molten iron can be directly used for steelmaking, and the obtained smelting slag can be used for producing building materials. The method for producing the nickel-containing molten iron by smelting and reducing liquid-state nickel slag, which is provided by the invention can realize energy-saving production, comprehensive utilization of resources and good economic benefits.