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  • Principles and methods of industrial sewage water treatment produced by production enterprises

    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,
    Release time: 2019-12-26 Clicks: 75

  • Low-concentration SO2 flue gas treatment in non-ferrous metal smelting

    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.
    Release time: 2019-12-24 Clicks: 78

  • Energy-efficient melting furnace

    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.
    Release time: 2019-12-23 Clicks: 6

  • Analysis of Causes and Solutions of Desulfurization Tower Blocking

    The main causes of tower plugging are sulfur plugging and salt plugging. The main reasons are as follows: (1) The quality of the gas entering the tower is poor, and the coal ash, coal tar and other impurities entrained in the gas are accumulated on the packing for a long time The formation of tower resistance rises, resulting in tower blockage. (2) 80% of the desulfurization absorption and desulfurization reactions are carried out in the desulfurization tower.
    Release time: 2019-06-24 Clicks: 60

  • Summary of matters needing attention in firing zone and cooling zone of tunnel kiln

    Attention should be paid to the firing zone of the tunnel kiln: the temperature control and adjustment of the firing zone. The firing zone is the most important section in the tunnel kiln roasting, because the firing zone is the highest firing temperature region to be reached in the tunnel kiln. In the firing zone, the final physical and chemical changes in the firing process must be completed, so that the tile products can obtain the desired physical and chemical indicators such as strength and durability. So the firing temperature
    Release time: 2019-06-17 Clicks: 52

  • Introduction of the main methods of natural gas desulfurization

    With the increasing demand for natural gas as a clean energy source, many gas wells often contain hydrogen sulfide during the mining process. Hydrogen sulfide can cause corrosion of equipment and pipelines, pollute the environment, and harm human health, thereby affecting natural gas. Gathering, processing and use. With the development of science and technology, the widespread use of natural gas desulfurization technology is a good solution.
    Release time: 2019-06-13 Clicks: 148

  • Rotary Kiln Skinning Causes and Prevention Measures

    1. Causes of pre-decomposition crusting: melt adhesion under the surface tension of the wet liquid film, surface adhesion caused by suction force acting on the surface, and adhesion caused by the interweaving of fibers or net-like substances. Due to the condensation of harmful components such as alkali, chlorine and sulfur in the kiln gas in the kiln tail, preheater and decomposition furnace, the minimum eutectic temperature is reduced, so
    Release time: 2019-06-12 Clicks: 75

  • Causes, symptoms, treatment and prevention of converter collapse accidents

    There are two types of converter collapse: new converter collapse and supplementary material collapse. For a furnace service, the collapse of a new furnace is only possible once, and the probability of repairing a furnace is much greater. Therefore, furnace repair is a very important task for converter steelmaking. 1. Reasons for the collapse of the furnace The reasons for the collapse of the converter include: (1) The residue in the furnace before the furnace is not poured, and the surface of the furnace lining is damaged.
    Release time: 2019-06-10 Clicks: 68

  • Kiln's kiln and operator perform correct calcination method

    The function of the vertical kiln is to prevent the temperature of the kiln body from rising suddenly after ignition, and the moisture in the kiln lining evaporates sharply, resulting in great thermal expansion stress, which causes the refractory material to have a large temperature difference and the surface to crack. On the one hand, it shortens the service life of refractory materials (some microcracks are not easy to see, and it is easy to break after use). On the other hand, the surface is rough due to damage, which leads to long-term solidification of the kiln.
    Release time: 2019-05-29 Clicks: 63

  • Anticorrosive measures commonly used in general industrial boilers

    Boiler shutdown maintenance is an important measure to prevent metal oxygen corrosion. The condition for the corrosion of the heating surface of the boiler is that the metal is exposed to moisture and oxygen. Therefore, either reduce the water in the pot, or make the water in the pot free of oxygen, or prevent the oxygen in the water from chemically reacting with the metal. If the furnace is temporarily stopped (usually within 10 days), oxygen-free anticorrosive measures in the water in the pot can be used. stop
    Release time: 2019-05-17 Clicks: 56

  • Summary of high-yield measures for industrial kilns

    High-yield measures for existing kiln include: using internal combustion bricks; dry blank kiln; choosing the correct code kiln form, dilute code and fast burning; increasing ventilation in the kiln; increasing fuel combustion intensity; 1. Take the method of burning bricks inside
    Release time: 2019-05-10 Clicks: 52

  • Precautions for refractory castables in summer

    Refractory castables are more and more used in high-temperature industrial production due to their advantages such as simple construction, excellent performance, and no need to pick construction sites, and various materials manufacturers can reasonably prepare them. Iron and steel, cement, power, chemical, environmental protection and other industries are using refractory castable products in large quantities. So what precautions should be taken during the construction of refractory castables? Winter and summer application
    Release time: 2019-05-08 Clicks: 52

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