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steel industry

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Larger heat recovery and smaller pollution effects

The metallurgical industry is an important raw material industry sector, known as "industrial food", and is usually divided into two major categories: ferrous metallurgy and non-ferrous metallurgy. The iron and steel industry is the main body of the ferrous metallurgy industry, mainly including ironmaking, steelmaking, and coal coke chemical industry. Non-ferrous metallurgy includes the processing and smelting of copper, aluminum, lead, zinc, nickel, gold and other metals. The development level of the metallurgical industry is an important symbol of a country's comprehensive national strength and is closely related to people's lives. The development of the metallurgical industry will also pose a serious threat to the environment and energy, mainly including flue gas pollution and emissions pollution, and higher energy consumption. The use of emissions for thermal energy recovery and product recovery will provide a reliable guarantee for the sound development of the metallurgical industry, and can achieve the goals of saving energy and reducing emissions and achieving sustainable development of the metallurgical industry.

公司为多家企业提供工艺过程所需的各种换热产品和服务,从可拆式板式换热器到半焊式板式换热器再到全焊式宽通道板式换热器、余热回收集成系统等,广泛用于包括冷却系统、制酸系统、氧化铝工艺热能利用、电解液的冷却等,并积极致力于开发冶金行业的节能减排产品和系统,在中高低温位热能回收系统、 焦化副产品回收系统等,为用户节能减排提供了系统的解决方案,为用户创造可观的效益。 Ruineng Haoyu provides various enterprises with various heat exchange products and services required by the process, from detachable plate heat exchangers to semi-welded plate heat exchangers to fully welded wide-channel plate heat exchangers. , Waste heat recovery integrated systems, etc., are widely used in cooling systems, acid-making systems, alumina process heat energy utilization, electrolyte cooling, etc., and are actively committed to the development of energy-saving and emission reduction products and systems for the metallurgical industry, in the middle and high temperature Recycling system, coking by-product recycling system, etc., provide users with a systematic solution for energy saving and emission reduction, and create considerable benefits for users. 总能为用户在材料选择、防腐设计以及结构设计方面提供优化的解决方案,实现集约化的运行系统,当您选择瑞能浩宇时,如果您只想收获一缕春风, 瑞能浩宇会给您整个春天! The heat exchange products and systems required by the metallurgical industry use complex media and a wide range of product types. Ruineng Haoyu can always provide users with optimized solutions in material selection, anticorrosion design and structural design to achieve intensive Run the system. When you choose Ruineng Haoyu , if you just want to harvest a ray of spring breeze, Ruineng Haoyu will give you the whole spring!


Iron and steel smelting

In the process of steel smelting, we provide thoughtful services in multiple process parts:

1.Blast furnace closed water cooler

2.Arc furnace closed water cooler

3. Oxygen lance, auxiliary oxygen lance cooler

4.Continuous casting crystal water cooler

5.Cold rolling oil cooler


Non-ferrous metals

The production methods of alumina can be roughly divided into four types: alkali method, acid method, acid-base combination, and thermal method. The alkaline method is further divided into Bayer method, sintering method and Bayer-sintering combined method. The alkaline method is to treat aluminum ore with alkali, so that the alumina in the ore is converted into a sodium aluminate solution, and impurities such as iron and titanium in the ore and most of the silicon become insoluble compounds. The insoluble residue (red mud) ) It is separated from the solution, and the useful components are recovered after washing. The pure sodium aluminate solution is separated into aluminum hydroxide, which is separated from the mother liquor, washed, and then roasted to obtain a finished alumina product.

The plate heat exchanger used in the alumina industry is mainly for the cooling of semen in the decomposition section, and is cooled to the process temperature by stepwise temperature reduction (respectively exchanged with the mother liquor and water). Because semen (oversaturated sodium aluminate solution) is prone to "scarring", the plate heat exchanger needs to be cleaned regularly. The cleaning solution is strong alkali or strong acid. Plate material can choose 316L, 254SMo, AL-6XN and so on.

The all-welded wide-channel plate heat exchanger is applied in the middle cooling section of the decomposition and classification process in the production of alumina, and is installed on the top of the decomposition tank to cool the aluminum hydroxide slurry during the decomposition process. Its main applicable characteristics are as follows:

1. The operating medium on the wide channel side is aluminum hydroxide slurry, and the medium velocity is generally 0.6 ~ 1.2m / s. The high flow rate drives the slurry containing solid particles to flow on the surface of the plate, without causing accumulation or scarring.

2. There are no contacts on the side of the wide channel, and the fluid can achieve completely free flow, and it fills the entire flow channel formed by the plate. The surface of the plate almost participates in heat exchange, and there is no "dead zone" flow in the flow channel.

3. There is a distribution structure at the entrance and exit of the slurry. The slurry first passes through the distribution port, then enters the distribution box, and finally enters each wide channel evenly.

4. Both the slurry side distribution box and the cooling water side tube box adopt a detachable structure of a flat cover plate, and the sliding door type principle can be disassembled at any time.

5. The ball-shaped welding structure with a good force form is adopted between the plate pairs, and the bearing capacity is stronger.

6. The material of the plate is SAF2205 (S31803) dual phase steel, which is a good solution for corrosion and abrasion.

7. The form of the plate bundle is horizontal, and the slurry goes in and out, which effectively inhibits the sedimentation and scarring of the slurry.

The steel industry is a large energy consumer, and a large amount of idle heat is generated in the steel manufacturing process, such as hot air, exhaust gas, hot water vapor, etc. These heat will be absorbed by buildings, equipment, cooling oil, cooling water and other media, and they Both need to be cooled. Iron and steel plant heat removal below 300 ℃ accounts for about 50%, of which cooling water below 100 ℃ accounted for a large proportion of the total heat removal.



Application of plate coolant in steel industry

The metallurgical industry is an important raw material industry sector, known as "industrial food", and is usually divided into black metallurgical industry and non-ferrous metallurgical industry. The iron and steel industry is the main body of the black metallurgical industry, mainly including ironmaking and coal coke chemical industry. Non-ferrous metallurgy includes the processing and smelting of copper, aluminum, lead, zinc, nickel, gold and other metals. The development level of the metallurgical industry is an important symbol of comprehensive national strength and is closely related to people's lives. The development of the metallurgical industry will also pose a serious threat to the environment and energy, mainly including flue gas pollution and emissions pollution, and higher energy consumption. The use of emissions for heat recovery and product recovery will provide a reliable guarantee for the sound development of the metallurgical industry, and can achieve the goals of saving energy and reducing emissions, and achieving sustainable development of the metallurgical industry.


Non-ferrous metals

There are four types of alumina production methods: alkaline method, acid method, acid-base combination, and thermal method. The alkaline method is further divided into Bayer method, sintering method and Bayer-sintering combined method. Alkali method uses alkali to treat aluminum ore. The alumina in the ore is converted into sodium aluminate solution. Iron, titanium and other impurities in the ore and most of the silicon become insoluble compounds. The insoluble residue (red mud) ) It is separated from the solution, and the swimming components are recovered after washing. The pure sodium aluminate solution is separated into aluminum hydroxide, which is separated from the mother liquor, washed and then roasted to form an alumina finished product.


The plate heat exchanger used in the alumina industry is mainly for the cooling of semen in the decomposition section, and is cooled to the process temperature by stepwise temperature reduction (respectively exchanged with the mother liquor and water). Because semen (supersaturated sodium aluminate solution) is easy to "scar", the plate heat exchanger needs to be cleaned regularly. The cleaning solution is strong alkali or strong acid. Plate material can choose 316L, 254SMo, AL-6XN and so on.


The all-welded wide-channel plate heat exchanger is used in the cooling section of the decomposition process in the alumina production process, and the aluminum hydroxide slurry installed in the decomposition process is used to cool down. Its main applicable characteristics are as follows:


1. The operating medium on the wide channel side is aluminum hydroxide slurry, and the medium flow rate is generally 0.6-1.2m / s. The high flow rate drives the slurry containing solid particles to flow on the surface of the plate, without causing accumulation or scarring.


2. There are no contacts on the side of the wide channel, the fluid can flow freely, and it fills the entire flow channel formed by the plate. The surface of the plate is almost involved in heat exchange, and there is no "dead zone" in the flow channel.


3. There is a distribution structure at the entrance and exit of the slurry. The slurry first passes through the distribution port, then enters the distribution box, and then enters into each wide channel.


4. The slurry-side distribution box and cooling water-side tube box both adopt the detachable structure of the flat cover plate, and the sliding door type principle can be disassembled at any time.


5. Spherical welding structure with good force form is used between the plates, which has stronger pressure bearing capacity.


6. The choice of plate material is SAF2205 (S31803) dual phase steel, which is a good solution to solve corrosion and abrasion.


Iron and steel smelting

In the process of steel smelting, we provide comprehensive services in a number of process locations:


1.Blast furnace closed water cooler


2. Arc Furnace Closed Water Cooler


3. Oxygen lance, auxiliary oxygen lance cooler


4.Continuous casting crystal water cooler


5.Cold rolling oil cooler


Free consultation hotline:

0315-6312169

400-850-2558

Contact Email: tsrh@rnhyts.com

Address: 200 meters west of the intersection of Tang'an Road and Chaoyang Road, Lubei District, Tangshan City, Hebei Province

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