Characteristics of circulating water in cement plant
In the cement industry, industrial circulating cooling water accounts for a large proportion of industrial water. China is short of water resources. How to improve the recycling rate of circulating water and save water resources is a realistic problem before us. Therefore, for cement technology, the research of circulating cooling water technology has profound practical significance. Due to the continuous circulation of circulating cooling water in use, the minerals in the water are increasing, causing scaling and corrosion of equipment and pipelines, which has a serious impact on industrial production. In order to prevent equipment from scaling and corrosion, we have EST electrochemical circulating water treatment system besides traditional chemical treatment methods.
Treatment principle of circulating water cooling water in cement plant
It has good economic and social benefits to develop circulating water treatment technology in cement plant and improve the utilization rate of circulating water and cooling water. When selecting the technical scheme of circulating water treatment process, the following principles should generally be followed.
1.？ The principle of comprehensive and rational utilization of water resources, while reducing pollution, to achieve the prescribed economic benefits.
2.？ Make-up water should meet the water quality requirements of industrial circulating cooling water.
3.？ According to the principles of high efficiency, low consumption, stable operation, convenient operation and reducing secondary pollution, a reliable and mature water treatment process is selected.
4.？ Water treatment should meet the needs of enterprise development, adopt modern management methods as far as possible, and realize scientific and automatic management.
5.？ In accordance with the relevant provisions of engineering design, the land should be occupied as little as possible, and the project investment should be reduced, and it should be combined with the overall planning and long-term development of the enterprise. Treating the circulating water can reduce the scaling and corrosion of the system, delay the increase of the water resistance coefficient of the system, ensure the heat transfer area of the heat exchanger and meet the normal needs of the production process, thus saving a lot of electric energy, reducing the replenishment of fresh water, reducing the pollution discharge of the system, protecting the environment, and having good economic and social benefits.
Comparison between EST electrochemical treatment system and traditional dosing treatment system
Using EST electrochemical water treatment system of Feichuang Technology can improve the concentration multiple of circulating water, greatly reduce sewage discharge and water replenishment, and easily realize "zero discharge" of water; The discharged scale can be used as raw materials for cement production, and the "zero discharge" of solid waste can be completely realized.
Characteristics of EST electrochemical treatment system
Pre-descaling patented technology, visual descaling
Dynamic adjustment of LSI index of cooling circulating water
Prevention and control of biological pollution, including killing Legionella.
Fully automatic operation, automatically adapt to water quality changes
Water saving, energy saving, emission reduction and environmental protection.
Working principle of EST electrochemical treatment system
The electric cleaning drive device and the cleaning and blowdown valve work together to remove the scale and other deposits pre-deposited on the inner wall of the reaction chamber from the inner wall of the reaction chamber and discharge them from the blowdown valve. The intelligent descaling device runs automatically without manual operation.
Case study on cement plant of EST electrochemical treatment system
Cement enterprises started construction in May, 2007 with a total processing capacity of 3.5 million tons? /h, of which 300m? /h for waste heat power generation, 50m? /h Used in cement production system?
Application scope of EST electrochemical treatment system
Industrial circulating cooling water system, refrigeration unit circulating water system, central air conditioning system and various heat exchange systems.
EST specification model
Standard flow: 5-25m3/h Modular design: multiple units are combined to achieve greater processing flow.
Design pressure: 6bar, 10bar optional power supply requirements: AC 380V 50Hz.
Scraping method: electric.