Comparison about pulverized coal 300tpd Rotary Kiln, 300tpd Pfr Kiln, 300tpd Burner beam kiln, 300tpd Annular Shaft Kiln
In the last several months, we received RFQ for pulverized coal lime kilns for 300tpd Rotary Kiln, 300tpd Pfr Kiln, 300tpd Burner beam kiln, 300tpd Annular Shaft Kiln.
According to our experiences on above kiln's works, we made a comparison list as bellows, thanks for comments and inquiries.
窑型对比Kiln type
contrast
this contrast is based on300t/d productivity, The provisional
fuel heat value : 7000Kcal Stand coal本对比以300t/d产量为例，燃料暂定热值为7000Kcal的标煤
一、窑体参数Kiln body parameters
序号Item
参数parameter
参考值Reference value (considering
too big maintenance cost for Annular Shaft Kiln, we willnot reference it, no
one can solve coal tar in burner chamber)
备注remark
双梁窑double-beam kiln (100~500tpd)
套筒窑annular
shaft kiln only high heat value gas
(200~600tpd)
双膛窑 twin-shaft Pfr Kiln (200~600tpd)
周边烧嘴窑 ABC kiln (80~250tpd)
回转窑 Rotary kiln (150~1000tpd)
0
燃料 Fuel
solid powder, liquid,
gas, (more than 650Kcal/Nm3)
gas (more than 1200Kcal/Nm3)
solid, liquid,gas(more than 800Kcal/Nm3)
gas (more than 650Kcal/Nm3)
solid powder ,gas (more than
2300Kcal/Nm3)
1
窑体总高（m）total height
confidential
confidential
confidential
confidential
Ф3.2*54m length
2
窑有效高（m）effective height
confidential
confidential
confidential
confidential
6pusher推头 Preheater
3
窑壳断面形状 kiln shell
section form
准矩形 Quasi
rectangle
环形 annulus
双环形 double
circular
环形 annulus
3 support roller
4
燃烧设备 burning
equipment
燃烧梁 burning beams（upper3+lower4）
蓄热式烧嘴（2层×5个）heat regenerative burner (2 layers *5pieces)
喷枪 burning lances
(26*2 pieces)（26×2个）
烧嘴（2层×12个+中心烧嘴） burner (2 layer peripheral *12pieces+1 center burner
3.5%slope斜度
5
风机数量 fans No.
(pcs)（个）
3
5
10
3
4
not including dedust fans
6
布料形式 material feeding form
分叉管布料 bifurcated
pipe
旋转布料器布料 rotary
distributor
旋转布料器布料 rotary
distributor
分叉管布料 bifurcated pipe
旋转布料器布料 rotary distributor
7
出料形式discharge
form
液压出灰机出料 hydraulic
discharger
液压出灰机出料 hydraulic discharger
液压出灰机出料 hydraulic
discharger
液压出灰机出料 hydraulic discharger
液压出灰机出料 hydraulic discharger
8
煅烧带耐材种类refractory
type in calcination section
75High aluminum brick or magnesia brick
高铝砖或镁砖
镁铝尖晶石砖Magnesia-Alumina-Spinel
bricks
镁铝尖晶石或镁铬砖Magnesia-Alumina-Spinel
bricks or magnesite-chrome brick
75High aluminum brick or magnesia brick
高铝砖或镁砖
special composite
phosphate brick 特种磷酸盐复合砖（砖厚250mm）
9
砌筑难易程度Masonry
difficult degree
简单 easy
复杂 complex
一般 ordinary
简单 easy
简单 easy
10
耐材总重 refractory
total weight（t）
confidential
confidential
confidential
confidential
confidential
only for referance
11
钢材总重 steel total
weight（t）
confidential
confidential
confidential
confidential
confidential
only for referance
12
控制复杂程度 control
complexity degree
简单 easy
较复杂 some
complex
复杂 complex
简单 easy
简单 easy
二、生产指标 Two,
production index
序号Item
参数 parameter
参考值 referance
value
备注 Remark
双梁窑double-beam
kiln
套筒窑Annular Shaft Kiln
双膛窑 twin-shaft kiln
周边烧嘴窑 ABC kiln
回转窑 Rotary kiln
1
活性度activity
degree（ml）
320~400
350~400
350~400
~250
380~420
4NHCl 10min titration滴定
2
烧失量LOI
2.5~5%
1.5~3.5%
1.5~3.5%
5~9%
0.5~1.5%
depending on the material and fuel
4
氧化钙含量 calcium
oxide content
not less than 大于等于92%
not less than大于等于92%
not less than 大于等于92%
not less than 大于等于80%
not less than 大于等于92%
Class One raw material 一级以上原料
三、吨灰消耗指标 energy
consumption (per ton of lime)
序号item
参数 parameter
参考值 referance
value
备注 Remark
双梁窑double-beam
kiln
套筒窑Annular Shaft Kiln
双膛窑 twin-shaft kiln
周边烧嘴窑 ABC kiln
回转窑 Rotary kiln
3
吨灰热耗 heat
consumtion（Kcal/kg灰）
1000
950
850
950
1100~1200
吨灰标煤用量 standard
coal (7000Kcal/m3) consumption（kg/ton）
143
136
122
136
157~171
7
设备投入equipment
investment（ex.w price CNY）
low
medium-high
highest
lowest
high
8
土建安装投入civil erection investment
low
high
high
lowest
high
