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Ammonia-free denitration technology reform of Weidun Cement2500T/D

Customer Reviews：

Weidun Cement Group commented that Huijin ammonia-free denitration kiln tail sintering system works notably well, the ammonia water dosage is significantly reduced without affect the product quality.

Project Introduction：

The implement of Huijin ammonia-free denitration kiln tail Sintering system transformation in Weidun Cement Group's 2500t/d production line reduced ammonia water usage from 0.68m³/h to 0.27m³/h, saving ammonia water for 0.41m³/h, and reducing ammonia water by 60%. The NOx emission indicator is controlled within 320mg/Nm³. The remarkable ammonia-reducing effect has been recognized by Weidun Cement Group.

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Technical parameter comparison table

Main paramters

Before transformation

After transforamtion
Coal consumption at kiln head（t/h）

6

6
Coal consumption at kiln tail（t/h)

9.2

9.2
Kiln feeding（t/h）

190-200

190-200
Secondary air temperature（℃）

1100±20

1100±20
Tertiary air temperature（℃）

880±20

880±20
C1 outlet temperature（℃）

305±10

305±10
Kiln tail temperature（℃

1100±20

1100±20
NOx standard（mg/Nm³）

320

320
NOx actural emission（mg/Nm³）

320

320
Ammonia consumption（m³/h）

O.68

0.27±0.01
O2 emission（%）

8

8
Clinker KH value

0.96±0.02

0.96±0.02
Clinker 3 days strength（MPa）

31

Updating
Clinker 28 days strength（MPa）

57±2

Updating
Clinker standard coal consumption（kg/t）

120

Updating

Project Introduction

Customer Reviews：

Huijin cement rotary kiln burner has perfect power-saving effect, the ammonia dosage is also significantly reduced.

Customer Reviews：

Huijin cement rotary kiln burner have stable and powerful flame, which indirectly prolong kiln lining service life, and with high flexibility adapt to low value pulverized coal.