水泥熟料冷却机英文翻译版

Clinker Coolers

U. Gasser / D. Brassel

PT 97/14232/E (Revision 1, February 1999)

1.INTRODUCTION (5)

2.GENERAL CONSIDERATIONS (5)

2.1Heat Flow in a Kiln System (6)

2.2Definitions (7)

2.3Calculations (11)

3.GRATE COOLERS (14)

3.1The Reciprocating Grate Cooler (14)

3.1.1Principle (14)

3.1.2History (17)

3.1.3Conventional Grate Coolers (1980’s) (18)

3.1.4Typical Grate Cooler Problems (22)

3.1.5Modern Grate Coolers (1990’s) (24)

3.1.6Design Highlights of Modern Grate Coolers (28)

3.1.7Clinker Crushers (38)

3.1.8Cooler control (43)

3.1.9Cooler Dedusting (47)

3.1.10Developments (50)

3.2The Cross Bar Cooler (52)

3.2.1Principle (52)

3.2.2Main features (53)

3.2.3Strengths and Weaknesses (55)

3.3The Travelling Grate Cooler (58)

3.3.1Principle (58)

3.3.2Strengths and Weaknesses (61)

4.ROTATING COOLERS (63)

4.1The Rotary Cooler or Tube Cooler (63)

4.1.1Principle (63)

4.1.2Design Features (63)

4.1.3Cooling performance (66)

4.1.4Strengths / Weaknesses (66)

4.2The Planetary Cooler (68)

4.2.1Principle (68)

4.2.2Historical (69)

4.2.3Design features (71)

4.2.4Internal heat transfer equipment (see Fig. 26) (72)

5.VERTICAL COOLERS (75)

5.1The Gravity Cooler (G - Cooler) (75)

5.2The Shaft Cooler (75)

SUMMARY 概述

Clinker coolers have two tasks to fulfil: 熟料冷却机有两大作用：

♦Recuperate as much heat as possible from the hot clinker by heating up the air used for combustion

♦从孰料中回收尽可能多的热量来加热用于燃烧的空气

♦Cool the clinker from 1400°C to temperatures adequate for the subsequent process equipment, normally to 100 - 200°C.

♦把熟料从1400°C降低到适合后续工艺设备的温度，通常为100 - 200°C.

There are mainly two different types of clinker coolers in operation with the following features: 主要有以下两种不同类型的冷却机

Grate coolers 篦式冷却机

♦Crossflow heat exchange through horizontal clinker bed with cold air from below.

通过水平的熟料料层与来自篦板下的冷风进行热交换

♦Cooling airflow exceeding combustion air requirement allows low clinker temperatures, but necessitates excess (waste) air dedusting.

冷却风量多于需要的热风量可以降低熟料温度，但是会产生废气。

♦Modern cooler technology with sophisticated plates and forced aeration systems allow combustion air temperatures exceeding 1000°C.

♦带有精密篦板和强制充气系统的现代冷却技术可使交换后的热空气达到1000°C.

♦Trend to wider and fewer grates, less cooling air and fixed inlets

逐步加宽和减少篦板：减少冷风和固定进口

♦Largest units: 10’000 t/d

最大能力：10’000 t/d

♦Travelling grate (Recupol): last unit built around 1980

移动篦板：最后一套生产于1980年左右。

Rotating coolers 回转式冷却机

♦Rotary tube coolers with separate drive or planetary cooler attached to kiln shell 单筒冷却机有独立的驱动，而多筒冷却机要于窑筒体相连

♦Quasi counter-current flow heat exchange

准逆流实现热交换

♦Cooling air determined by combustion air, no waste air

冷风取决于热风，没有废气产生

♦Heat exchange (recuperation) determined by condition of internal heat transfer equipment

热交换取决于固有的传热设备

♦Limited unit size, up to 3000 t/d

♦限制单机产量：不超过3000 t/d