Application of self cleaning air filter removal equipment to dust removal of blast furnace blower in iron and steel plant

It is very important. This type of equipment can effectively filter dust in the air, prevent equipment wear and corrosion, and extend its service life. After the blast furnace blower in the steel plant inhales the air containing dust, the dust will accumulate on the surface of the fan blade, resulting in the decline of the dynamic balance imbalance precision, and thus shorten the working life of the equipment. In addition, the harmful chemical components in the dust will also make the equipment rust and corrosion. Therefore, aerodynamic equipment must be equipped with high-precision air filters. ZKL series self-cleaning air filter produced by Henan Xinxiang Lifelte Filter Co., Ltd. is an improved and perfect product, which fully meets the intake requirements of industrial gas turbines and blast furnace blast air compressors. The self-cleaning air filter has automatic cleaning function, high structural strength and good sealing performance. It is composed of high efficiency filter cylinder, Venturi tube, self-cleaning nozzle, backblowing system, control system, clean air chamber and outlet, frame, etc., which can maintain stable performance in harsh industrial environments. In order to further standardize the construction of dust removal engineering in iron and steel industry, prevent and control dust gas pollution, and improve environmental quality, China has formulated the Technical Specification for dust removal Engineering in Iron and Steel Industry (HJ435-2008). The standard specifies the principles and measures for the treatment of smoke (powder) dust in the main production process of the iron and steel industry, as well as the technical requirements for the design, construction, acceptance and operation of dust removal projects, and is applicable to the whole process management of new, rebuilt and expanded dust removal projects and the operation management of existing dust removal projects. In the current situation of serious air pollution, especially in winter, the Air Quality index (AQI) frequently breaks the table in some cities, and the PM2.5 content seriously exceeds the standard. For the removal of particulate pollutants in the atmosphere, there are mainly dry and wet methods, filtration methods, electrostatic methods and dry fog dust suppression methods. Among them, water mist dust suppression technology is one of the most advanced, the most environmentally friendly, the lowest cost, the highest efficiency of advanced technologies. However, the traditional fog gun model has a limited removal effect on PM2.5, with only a 15% reduction rate, and a weak effect on sulfur dioxide, nitrogen oxides and aerosols in the air. In order to solve the above problems, Quanzhou Science and Technology Plan project "Industrial/civil intelligent dust removal, deodorization, cooling and other air purification integration technology development and application" (project number: 2015Z106) Through the integration of Internet of Things technology, ultrafiltration technology, enzyme air purification technology, original negative ion dust removal technology, full hydraulic fog gun technology, intelligent silence technology, the remote implementation of mobile phone monitoring and control operations, can be a large area of air pollution control (reduce PM2.5), air purification and other functions. Project technical indicators include host power 1.1-80kW, power supply 380/3/50Hz, oil supply pressure 15MPa, water supply pressure 0.4-0.6MPa, dust suppression rate ≥75%, control mode program-controlled/manual/remote, noise 60-85dBA, protection level IP55. The results of the project have been widely used in Quanzhou Qingyuan Mountain Scenic Area, Quanzhou Passenger Transport Center Station, Quanzhou Railway Station, more than 70 gas stations in Fujian Province, East Lake Park, Quanzhou Donghai Taihe Square, West Lake Park, Zhangzhou Flower Expo Park, Pinghe County Sanping Temple Scenic spot, Wulong Island Joy Park and other well-known places, and users have a high evaluation. 

In the funeral home cremation environmental protection equipment purchase project, a number of advanced technologies are used to ensure environmental protection and efficient operation. For example, the fire quenching system can reduce the fire temperature to below 180 ° C in a short time, jump over the temperature zone where dioxins are easy to form, and meet the temperature requirements of filter bag dust removal, so as to achieve environmental protection, energy saving and convenient maintenance. Interceptor filter and bag dust collector are made of high-quality steel, high temperature corrosion resistance, not easy to be penetrated by gas corrosion, filter bag material efficient high temperature resistance, to ensure that all kinds of pollutants discharge meet the national standards. As a kind of dust removal equipment with simple and compact structure, small footprint, flexible design, convenient installation, convenient maintenance and management, self-excited dust collector has been widely used in metallurgy, chemical industry, casting and other industries. Its working principle is to wash the dust chamber, dust cleaning and water level control composed of an independent whole, so that the foam and water droplets hit the water surface filled with the entire S-shaped channel, so that the gas and liquid more fully mixed, increase the chance of dust particles and water droplets contact. The dust collector is equipped with a set of automatic water level control device, which can make the water level fluctuate within ±5mm, so that the equipment is in the best operating state, and the overall efficiency is relatively stable. In the process of ironmaking, a lot of high temperature and high concentration dust will be produced in the blast furnace, which will seriously affect the environmental quality and production equipment. Therefore, it is very important to purify the air by using the bag dust collector with 300,000 air volume in the iron and steel blast furnace. The dust collector is designed to reach 300,000 cubic meters/hour, with high temperature resistance, bag filtration system, pulse ash cleaning system and automatic control system, which can effectively remove dust particles in the air, and is widely used in the dust control of blast furnace iron plant. In summary, the application of self-cleaning air dust removal equipment in the dust removal of blast furnace blower in iron and steel plant not only improves the operating efficiency and service life of the equipment, but also effectively improves the environmental quality. At the same time, with the continuous progress of science and technology, integrated air purification technologies such as intelligent dust removal, deodorization and cooling have provided new solutions for air pollution control and made positive contributions to the realization of clean air goals