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Case of DEAR air separation and Anfeng Iron and Steel Company

Case of DEAR air separation and Anfeng Iron and Steel Company
Hebei Anfeng Iron and Steel Co., Ltd.,
Hebei Anfeng Iron and Steel Co., Ltd., founded in 1992, which is located in Jing'an Town, Changli County, Qinhuangdao City. It is a private enterprise with fixed assets of 7 billion yuan and more than 11000 employees. It is a local iron and steel main enterprise in Hebei Province with an annual production capacity of 8 million tons of integrating sintering, ironmaking, steel making, steel rolling and profiles. In 2013, it ranked 56th among the top 100 enterprises in Hebei Province and 38th among the top 100 manufacturing enterprises in Hebei Province.
Flow:
Purity: ≥99.6%
Industry: Large air separation case
Project address: HeBei,China
Project Overview

DEAR air separation signed the KDON-15000/35000 air separation plant contract with Anfeng Iron and Steel Co., Ltd.. The process characteristics of the project: two-stage distillation and low-pressure process. At present, the operation condition of the project is stable, and all indexes are up to the standard.

Product Advantage

The unit adopts molecular sieve purification, booster turbine expander to supply the cooling capacity of the unit. When the gas volume of expander is large, the liquid oxygen output can be increased when the oxygen is not used much, which is safe, reliable and economical. The main reasons are as follows:

 

1.Good safety

The whole set of device has the advantages of low operating pressure, simple process, high equipment safety, long switching cycle of molecular sieve system, increased service life of switching valve, and reduced potential hazards.

A large amount of liquid oxygen is extracted from the main cooling (K1) to minimize the possibility of hydrocarbon accumulation.

 

2.High reliability

A large amount of surplus nitrogen can be sent to the water cooling tower, reducing the load of the water chiller, reducing the energy consumption and cost of air separation, so that the reliability of the device is further improved.

 

3.Convenient operation and maintenanceandsimple process

Technical Parameter

PRODUCT

OUTPUT
N m³/h

PURITY

PRESSURE OUT OF COLD BOX Mpa

   TEMP

NOTE

OXYGEN

15000

≥99.6% O2

0.015

NORMAL

EXTERNAL COMPRESS TO 2.5Mpa

LOX

700

≥99.6% O2

Into tank

SATURATED

 

Nitrogen

15000

≤10ppmO2

0.008

NORMAL

To pre-cooling system

Nitrogen

20000

≤10ppmO2

0.008

NORMAL

EXTERNAL COMPRESS TO 2.5Mpa

 

Note: the unit of measurement Nm3/h is measured at 0 ℃, 0.1013Mpa (A). It is called standard state quantity.

 

1.1 Take oxygen and nitrogen at different times

 

1.2 Operation cycle (interval between two large heating): ≥ two years

 

1.3 Heating and uncooling time of the device: ~ 36 hours

 

1.4 Starting time of the device (from the start of expander to the purity of oxygen product): ~ 40 hours

Matching Units

Matching Units

 Unit

1. Centrifugal air compressor   

2. Air pre-cooling system

3. Purification system

4. Booster turbine expander 

5. Fractionator system

6.Nitrogen compression system  

7.Oxygen compression system

8.Liquid storage system 

9.Instrument control system

10.Electric control system  

1 set

1 set

1 set

1 set

1 set

1 set

1 set

1 set

1 set

1 set

DEAR Air Separation Company recommends Case of DEAR air separation and Anfeng Iron and Steel Company  so that you can learn more about the landing project of DEAR Air Separation Equipment. You can also view Large air separation caseall air separation cases,air separation products, and air separation product solutions.
Consulting Project Engineer
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