Rotary kiln operation instructions

 Rotary kiln


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Table of contents



Ⅰ. Technical performance

Ⅱ. Principle of work and structure outline

Ⅲ. Rotary kiln operation

Ⅳ. Lubrication and cooling

Ⅴ. Rotary kiln maintenance, overhaul

Ⅵ. Safe matters needing attention


Attached list 1 Rolling bearing detailed list of specifications

Attached list 2 Along with equipment ordering electricity

Attached list 3 Spare parts, vulnerable table


Ⅰ. Technical performance
Item Name Technical Parameter
Type Dry way production precalciner kiln
Specification (m) Φ3.0×48m Φ3.3×50(54)m Φ3.5×56m
Slope (%) 3.5 4 4
NO. of the supporting seat 3 3 3
Capacity (t/d) 700 1200 1500
Speed of kiln (r/min) When using main driving, adjusting cope: 3.63~0.726 When using main driving, adjusting cope: 0.36~3.59 When using main driving, adjusting cope: 0.39~3.91
8.25 When using auxiliary driving: 6.5r/h 5.1
Type of driving Single driving
Driving motor Main driving Type ZSN4-280-091B,IP44 YTSP315M2-4 YJTG355L1-6
Rated power (kW) 110KW 160 220
Rated speed (r/min) 1000 1500 1000
Adjusting cope (r/min) 100~1000 100~1500 100~1500
Auxiliary driving   Type Y180L-6 Y160M-4 Y200L1-6
Rated power (kW) 15 11 18.5
Rated speed (r/min) 970 1470 970
Driving reducer Main during  Type YNS995-31.5VIBL ZSY450-40-V YNS995-28VBL
Total center distance (mm) 995 989 995
Nominal ratio 31.5 40 28
Auxiliary driving Type ZSY200 ZSY160-31.5-II ZSY200-45-I
Total center distance (mm) 440 352 440
Nominal ratio 25 31.5 45
Model  of thrust roller Liquid pressure thrust roller
Sealing model of kiln head Steel shim sealing Steel shim sealing Steel shim sealing
Cooling mode of kiln head Air cold Air cold Air cold
Sealing model of kiln tail Air cylinder pressure-tight end face sealing Steel shim sealing or others Air cylinder pressure-tight end face sealing
Ⅱ. Principle of work and instruction feature
(Ⅰ) Principle of work: The rotary kiln is the main engine equipment for the cement production
The raw powder is entered kiln shell to calcined from the kiln rear high end. Because kiln body inclining and slowly rotation, causes the material to produce a kind of compound motion, which both along the circumference direction tumbling and along axial from high-end to low-end migration. The raw of inside the kiln through the decomposition & firing & cooling and so on process, after firing become the cement clinker, which should be dumped from the kiln shell low end, and enters the cooler.
The fuel is gushed in from kiln head, and carries on burning inside the kiln, sends out the heat quantity heats up the raw, causes the raw to be calcined and become the clinker, in hot air which forms with the material heat change process, enters the kiln rear system from the kiln feeding end, finally is dispersed into the atmosphere by the chimney.
(Ⅱ) Structure outline
The rotary kiln is mainly composed by the kiln shell, the transmission device, the supporting unit, the thrush unit, the kiln-head packing unit, the kiln-rear packing unit, the kiln-head cover and so on. Sees the rotary kiln diagram of mechanism.

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