2012年(464)
分类: Delphi
2012-06-14 10:44:31
Red Star is widely used in cement clinker calcination in cement production. Cement clinker calcination is usually fall into dry production and wet production. Thereby, rotary kilns include dry rotary kiln and wet rotary kiln.
Structure of rotary kiln:
The rotary kiln produced by Zhengzhou Red Star
is rather universal being used in . Mainly it consists of hovel, tire and roller step wheel. 1.
Hovel: the thickness of hovel steel board produced by our company is about 40mm,
inside which is a layer of refractory bricks with thickness 20 mm. And the
quality of refractory brick will without doubt affect rotary kiln service life.
About one-meter cone inlet chamber equipped at the end of rotary kiln, so that
materials can smoothly entry into it. 2. Tire: bearing, tire and supporting
roller wheel are used to support rotary kiln. In order to reduce hovel thermal
radiation on tire and prevent tugboat overheated, we add a separator between
tugboat and tire. Generally, rotary has two or three tugboats. 3. Roller step
wheel is a limit switch that control rotary kiln low drafting or high
drafting.
Other applications:
In addition to cement production
application, rotary kiln can also be used to magnetize lean magnetite ore and
magnetized roasting of iron ore; Chromium, nickel-iron-oxidizing roasting;
roasting high bauxite ore in refractory plant and roasting clinker and aluminium
hydroxide in aluminum factory; roasting chromium ore and chromium ore mineral in
chemical plant. Our company also produce lime rotary kiln in short as lime kiln,
which is used for roasting active lime and dolomite in steel Ferroalloy Factor.
If seen from opposite side, there are two situations making the boards
produce large force during crusher operation. One is the upper centrum force
area, which is used in extra big ore and cracks near the cross section. The
other is discharging open force area, which is used for iron ore and is broken
by blogging force.
The reason for that is convenience. Due to scarcely check
the entering rock, there are often extra ore and iron ore entering into crusher,
thereby often the spindle fracture accident happens. Above all, users should try
to avoid extra size ore and iron entering into crusher, so that improve the
principal axis reliability, prolong service time and reduce economic loss.
The reason analysis and solution: Under heavy load, low pressure state,
thrust button pushes plane sliding thrust bearing at low speed. Owing to low
speed, liquid lubrication is replaced by boundary lubrication. Sometimes, the
inappropriate contact can produce localized contact, which increases pressure,
destroys lubrication conditions and makes wear worse.