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Case of DEAR air separation and Guangxi Guifeng Steel

Case of DEAR air separation and Guangxi Guifeng Steel
Guangxi Guifeng Steel
Guifeng Iron and Steel Co., Ltd. is a large-scale iron and steel enterprise with regional influence. Founded in 2002, Guifeng Iron and Steel Co., Ltd. is an enterprise integrating steel-making, steel rolling, stainless steel production, industrial park land development and infrastructure construction, logistics and transportation. The enterprise's concept of promoting operation with integrity is in accordance with DEAR air separation’s concept that lays the foundation of the win-win combination of these two enterprises.
Flow:
Purity: 99.6%
Industry: Complete air separation case
Project address: GuangXi, China
Project Overview

DEAR air separation and Guifeng Steel successfully signed a contract for KDON (AR) - 8000 / 16000 / 220 air separation plant, which is matched with 120 ton electric arc furnace project. At present, the plant has been put into operation.

Product Advantage

The unit adopts molecular sieve purification, booster turbine expander to supply the cooling capacity of the unit, and the whole rectification hydrogen-free argon production process, 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

8000

≥99.6% O2

0.04

NORMAL

EXTERNAL COMPRESS TO 2.4  Mpa

LOX

200

≥99.6% O2

Into  tank

SATURATED

 

Nitrogen

16000

≤10ppmO2

0.014

NORMAL

EXTERNAL COMPRESS TO 2.4Mpa

LAr

220

≤2ppmO2
≤3ppmN2

Into tank

SATURATED

 

 

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

 

1.1 Liquid products are calculated by 3 times of gas volume

 

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

Supporting Units

 Unit

1. Centrifugal air compressor   

2. Air pre-cooling system

3. Purification system

4. Booster turbine expander 

5. Fractionator system

6.Crude nitrogen compression system 

7.Oxygen compression system

8.Liquid storage system 

9.I & C 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 Guangxi Guifeng Steel  so that you can learn more about the landing project of DEAR Air Separation Equipment. You can also view Complete air separation caseall air separation cases,air separation products, and air separation product solutions.
Consulting Project Engineer
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