1 Universal tools Universal tools are tools that electricians often use in their work. 1. Electroscope It is a device used to judge whether there is power supply on electrical equipment or lines. Divided into two kinds of low pressure and high pressure. (1) How to use the low-voltage electroscope ① You must hold the pen body as shown in Figure 1, and point the backlight of the neon tube window towards yourself for easy observation. a, pen style
This article mainly focuses on the research of semi-dry desulfurization and wet desulfurization processes, analyzes the related issues of semi-dry desulfurization and wet desulfurization processes, and compares the main points and differences of semi-dry desulfurization and wet desulfurization processes. And summary for future reference. The selection of semi-dry desulfurization and wet desulfurization processes is very important. Do a good job of selection and comparison of semi-dry desulfurization and wet desulfurization processes.
In a copper smelter using PS converters for production, the converter plays the role of roughing and impurity removal in production and adjusts the production rhythm with the upper and lower processes. The life of the converter lining refractory determines the life of the converter. A non-ferrous company uses two 60t converters to produce in a furnace exchange production mode. From 2013 to 2015, the converter life has been low, and the furnace has been repaired small.
Industrial wastewater refers to the wastewater, sewage and waste liquid produced in the industrial production process, which contains industrial production materials, intermediate products and products that are lost with the water, and pollutants generated during the production process. With the rapid development of industry, the types and quantities of wastewater have increased rapidly, and the pollution of water bodies has become increasingly extensive and serious, threatening human health and safety. When it comes to protecting the environment,
Nonferrous metals are often associated with sulfur to form sulfide ore such as sphalerite, galena, chalcopyrite, goethite, etc., which are important raw materials for the metallurgical industry. In the non-ferrous smelting industry, there are two metallurgical processes: fire and wet. Currently, sulfide ore is still treated by fire in most cases. In the pyrometallurgical process, sulfide metal ore is roasted at high temperature to separate sulfur and metal.
The general requirements of non-ferrous melting furnaces are conducive to the rapid melting and heating of metal charge, shortening the melting time, reducing element burn-in and gettering, low energy consumption, high thermal efficiency and long crucible lining life; non-ferrous melting furnaces can be divided into fuel furnace and electric furnace Coke furnaces, fuel oil furnaces and gas furnaces are commonly used in fuel furnaces. Crucible furnaces and reflection furnaces are also used in fuel furnaces. Electric furnaces are divided into resistance melting furnaces and induction furnaces.
When the actual electrolytic temperature of the electrolytic cell is higher than the upper limit of the normally controlled electrolytic temperature, we call the electrolytic cell a hot tank or entered a thermal stroke. From the perspective of energy balance, the reason for the formation of the heat sink is increased heat income, or reduced heat expenditure, or both. The main factors that determine the thermal revenue of an electrolytic cell are the cell operating voltage, anode effect, series current, and electrolyte resistance. Shadow
After the temperature of the kiln is over three days after cooling down, all the kiln cars in the kiln can be pulled out. Through careful inspection of the inside and outside of the kiln and related auxiliary facilities and equipment, according to the aging and damage conditions, Then develop a maintenance plan. Pressure exhaust to check whether there is air leakage in the general flue and the flue, whether there are cracks, collapses, etc., and the effect on smoke, rust, etc.
Advantages of natural gas forging furnaces Natural gas forging furnaces are one of the types of forging furnaces and are very popular in daily life. What are its advantages? Let ’s take a look at them together. Quality advantages: The cleanliness of natural gas forging furnaces can reduce the impact of emissions on the environment to a lower level. With this advantage, the furnace tail gas can be discharged directly into the plant
The composition of the regenerative casting furnace has two major parts, the movable furnace bottom on the trolley and the fixed heating chamber, which is a periodic heating furnace. Trolley-type regenerative heating furnaces are widely used in the machinery industry. Because the furnace temperature of the trolley-type heating furnace can be changed with time according to the heating program required by the process, it is mostly used for heating the workpiece heat treatment process and heating before billet forging. Weiguang Festival
There are many setting parameters of the inverter, and each parameter has a certain selection range. In use, it is often encountered that the inverter cannot work normally due to improper setting of individual parameters. Therefore, the relevant parameters must be set correctly. set. 1. Control mode: speed control, torque control, PID control or other methods. After adopting the control method,
The production of electrolytic aluminum is developed by the coal, electricity, and aluminum industry chains. The hidden safety hazards in the production process are different from the five major hidden troubles such as underground roofs and gas. So, what are the hidden dangers in electrolytic aluminum production and how to prevent them? This has to start from the electrolytic aluminum process: electrolytic aluminum uses direct current to generate heat at the poles of the electrolytic cell to melt cryolite and oxygen.