Ironmaking blast furnaces are commonly known as blast furnaces; The blast furnace generally refers to a vertical furnace for smelting non-ferrous metals.
Zinc ingots can be classified into different types based on their zinc content; (1) Zinc No. 0. ① The zinc content in zinc ingots shall not be less than 99.995%; ② The main impurity elements are the same as No.1 zinc; ③ Used for manufacturing advanced alloys and special applications. (2) Zinc No.1. ① The zinc content in zinc ingots shall not be less than 99.99%; ② The main impurity elements are the same as the second zinc; ③ Mainly used for advanced zinc oxide, pharmaceutical and chemical reagents, electrogalvanizing, and die-casting parts. (3) Second zinc. ① The zinc content in zinc ingots shall not be less than 99.95%; ② The main impurity elements are the same as the third zinc; ③ Mainly used for making zinc alloys, battery zinc sheets, and die-casting parts. (4) Zinc No. 3. ① The zinc content in zinc ingots shall not be less than 99.90%; ② The main impurities are: lead, cadmium, copper, iron, and tin; ③ Mainly used for zinc plates, hot dip galvanizing, and copper alloys. (5) Zinc No. 4. ① The zinc content in zinc ingots shall not be less than 99.5%; ② The main impurities are: lead, iron, cadmium, copper, arsenic, antimony, tin, and aluminum; ③ Mainly used for making zinc plates, zinc powder, hot-dip galvanizing, ordinary castings, and zinc oxide. (6) Zinc No. 5. ① The zinc content in zinc ingots shall not be less than 98.7%; ② The main impurities are: lead, iron, cadmium, copper, arsenic, antimony, tin, and aluminum; ③ Mainly used for producing zinc containing copper lead alloys, ordinary zinc oxide, and ordinary castings. The zinc content in zinc ingots determines the type of zinc ingot, and investors should be cautious when choosing zinc ingots
Bag dust collector The working principle of a pulse bag dust collector is to enter the dust containing gas into the ash hopper through the air inlet or into the filter bag room through an open flange. The dust containing gas passes through the filter bag as clean gas and enters the clean gas room. It then passes through the exhaust port of the clean gas room and is discharged by the fan. Dust accumulates on the outer surface of the filter bag and continues to increase, causing the resistance of the pulse bag dust collector to continuously increase. In order to ensure that the equipment resistance does not exceed 1200pa and the pulse bag dust collector can continue to work, it is necessary to regularly remove the dust on the filter bag. Ash cleaning is a process in which a pulse valve is activated in a timed sequence controlled by a program, causing compressed air inside the air bag to be sprayed out through the orifice of the blowing tube and induced by a venturi tube to enter the filter bag, causing it to rapidly expand in an instant. With the reverse effect of the airflow, the dust is shaken off to achieve the purpose of ash cleaning.
The energy consumption of smelting waste aluminum using a conventional reverberatory furnace is about 1000kw/t, equivalent to 100Nm ³/ Natural gas or 100L/t oil. Using a tilting rotary furnace can save 25%. The decrease in energy consumption is mainly due to the significant improvement of heat transfer in the rotary furnace and the dual channel arrangement of the burners, resulting in a large amount of waste heat recovery in the flue gas. The tilting rotary furnace adopts proportional integral differential control mode (IP) D to control the amount of fuel and combustion air. At the same time, this control is continuous and can automatically adjust the temperature according to the charging amount, making the smelting process in an optimized state. When smelting in a reverberatory furnace, the temperature of the furnace top or upper furnace wall is adjusted to 1100 ℃, while the setting temperature of a tilting rotary furnace is 750 ℃. 25% energy savings come from the improvement of temperature difference and thermal efficiency. The productivity of the tilting rotary furnace is improved by the use of fully automated charging machines, automated slag tanks (boxes), and automated slag removal, which means only simple operations are carried out during the smelting process; The number of operators can be reduced by at least two. One person can operate two furnaces with high thermal efficiency and fully automated control of the smelting process to achieve optimal melting speed. The melting cycle of the tilting rotary furnace can be reduced to less than 4 hours, which means that depending on the furnace capacity, each furnace can melt 6 to 8 furnaces per day, which is equivalent to a 15t furnace melting 90 tons of recycled aluminum every 24 hours, and a 5t furnace can melt about 40 tons. Compared to a reverberatory furnace, a tilting rotary furnace has a much wider range of waste capacity, and can effectively melt from low-level slag, chips, and cans to process waste. Therefore, recycled aluminum enterprises can use low-level waste to smelt higher grade or even recycled aluminum, achieving good economic benefits. Low quality waste materials such as chips and slag cannot be melted using a reverberatory furnace. From the above introduction, it can be seen that the main advantages of tilting rotary furnaces are reduced burning loss and increased productivity, which is due to the comprehensive automation control of melting temperature, time, and combustion parameters.
The anode is made of coarse or semi refined lead, the cathode is made of pure lead, and the electrolyte is composed of silicofluoric acid and lead silicofluoric acid. Anode: Lead is oxidized into lead ions and enters the solution: Pb-2e=Pb2+; Cathode: Lead ions in the solution are reduced to metal lead and precipitated: Pb2++2e=Pb. During the electrolysis process, impurities such as iron, zinc, tin, nickel, diamond, and other metals with a lower standard electrode potential than lead dissolve into the solution together; Metals with standard electrode potentials corrected for lead, such as antimony, arsenic, pound, copper, tin, gold, and silver, do not dissolve and form anode slime, which adheres to the anode surface. Electrolysis is the process of causing oxidation-reduction reactions on the cathode and anode by passing current through an electrolyte solution or molten electrolyte (also known as electrolyte). Electrochemical cells can undergo electrolysis under an applied DC voltage. The process of chemical changes caused by the passage of an electric current through a substance.
An ingot mold is a container or mold used in the casting process to shape and solidify molten metal into ingots. It is typically made of durable materials such as cast iron, steel, or graphite, and is designed to withstand the high temperatures and pressures involved in the casting process.