In the process of China's industrial structure adjustment, the evaluation of the industrial structure of the cement industry, energy conservation and emission reduction, and the promotion of green development are a very important part of deepening the supply side structural reform and achieving high-quality development. In the past two years, the major cement enterprises have paid great attention to energy saving and consumption reduction. Some cement enterprises have also increased their investment in cement enterprises, moving towards fine management and green development.

As a single champion of the manufacturing industry of the Ministry of industry and information technology of the people's Republic of China, a gazelle enterprise of the national high tech Zone, and a single champion enterprise of the manufacturing industry of Shandong Province, Shandong Tianrui Heavy Industry Co., Ltd. continues to increase the research and development and production of high-end rock drilling equipment and magnetic levitation technology, better provide professional matching services for cement enterprises, and make contributions to the energy saving and consumption reduction of cement enterprises.

According to the relevant person in charge of Tianrui heavy industry, after six years of research and development, Tianrui heavy industry has successfully introduced the magnetic levitation blower to the market. At present, it has been rapidly applied in urban sewage treatment, paper making, chemical industry, cement and other industries, and has been highly recognized by users. Compared with the traditional roots blower, the power saving rate is 30% - 40%, and the noise is reduced to below 80 dB. It provides a high-quality solution for the upgrading and transformation of users, and has outstanding economic and social benefits. Weifang High tech Zone supports the construction of China's magnetic levitation base. The first phase of the project has an investment of 300 million yuan and covers an area of 67.8 mu, forming a production capacity of 1500 magnetic levitation blowers per year. In phase II, a production capacity of 10000 sets of Maglev series products will be formed.

The magnetic levitation blower developed by Tianrui heavy industry has been evaluated by China high tech Industrialization Research Association. The conclusion is that the energy-saving and noise reduction effect of the magnetic levitation centrifugal blower independently developed by Tianrui has reached the international advanced level.

It is understood that the active magnetic bearing system is the core system of the magnetic levitation centrifugal blower of Tianrui heavy industry. The rotor of the motor is fixed between two radial actuators and two axial actuators. The position of the rotor is detected by the position sensor and the position signal is reflected to the actuator controller in real time. When the rotor is offset, the controller will adjust the magnetic field force of each degree of freedom of the magnetic bearing according to the offset of the rotor to return the rotor to the correct position.

The maglev blower of Shandong Tianrui heavy industry has been widely used in cement enterprises such as a cement plant in Shanxi, a cement plant in Zibo and a cement plant in Weifang, and has been highly recognized by the major cement enterprises. According to the person in charge of Tianrui heavy industry, in a cement plant in Shanxi Province, it is mainly used for conveying pulverized coal at the kiln head. The original 185KW roots blower is now replaced by a 90kw magnetic suspension blower, saving 37%; In a cement plant in Zibo, the original 200kW roots blower is replaced by a 150KW maglev blower; In a cement plant in Weifang, the original 185KW roots blower (operating power of 128KW after frequency conversion) is replaced by 90kw magnetic suspension blower, with a power saving rate of 43.2%. Subsequently, three magnetic suspension blowers will be replaced.

Energy saving and emission reduction case of magnetic suspension blower of Tianrui heavy industry:

Tianrui heavy industry maglev blower works in a cement plant

The maglev blower of Tianrui heavy industry has the following five advantages:

First, environmental protection advantages

1. Maglev centrifugal blower does not need lubrication, and the air conveyed is clean and pollution-free.

2. The magnetic bearing is completely friction free, and the blower operates with low noise, which will not affect the surrounding office and living environment.

3. Based on the calculation of 100kW magnetic levitation centrifugal blower, each blower can save more than 300000 kwh of electricity and more than 200000 yuan of electricity.

II. Energy saving advantages

1. Compared with roots blower, the efficiency of maglev centrifugal blower is increased by more than 30%.

2. Taking the 100kW magnetic levitation centrifugal blower as an example, compared with the roots blower, each magnetic levitation centrifugal blower can save more than 300000 kwh of electricity and more than 200000 yuan of electricity.

Third, adopt cutting-edge technology

1. The active magnetic bearing system is adopted, which is free of wear, lubrication and maintenance.

2. High performance frequency converter is used to control the speed, and multiple control modes can be selected.

3. The advanced control system is adopted, and the operation state can be monitored and controlled remotely without personnel on site.

4. The fully enclosed air cooling system is used to heat the motor to ensure that the fan is in a stable and efficient operating state.

5. Modular design, convenient and fast maintenance.

Fourth, low operating costs

1. The magnetic bearing is completely friction free, reducing the probability of product damage, and the service life of the blower can reach more than 20 years.

2. The magnetic levitation centrifugal blower is easy to maintain and only needs to replace the filter regularly.

3. Magnetic levitation centrifugal blower does not need lubrication system, which saves the cost of lubricating oil and cleaning.

4. The motor is driven directly, with small volume, light weight and space saving.

5. Domestic production can ensure the timely supply of spare parts.

Fifth, industrial big data platform

1. The remote service based on the industrial Internet of things can provide customers with fault early warning and online commissioning test of the whole life cycle of equipment.

2. The unique industrial big data platform provides rich algorithm models to help users improve production links from multiple perspectives.

With the help of obvious technical advantages and energy saving advantages, the magnetic levitation blower developed by Tianrui heavy industry has been greatly recognized by the market and customers, and the re installation rate and market share have been continuously increased.

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