Zinc Oxide Rotary Kiln Introduction:
Zinc oxide rotary kiln is the calcination equipment used for processing the zinc-bearing
materials to get the zinc oxide. The zinc oxide rotary kiln
manufactured by ZK Corp. is specialized used and designed for the
production of zinc oxide, as the zinc oxide exists in powdery.
Because the zinc oxide is very fine powder, so we have to make a
special rotary kiln for zinc oxide production, that is what we say
now “zinc oxide rotary kiln”.
Mainly used in building materials, metallurgy, chemical, refractory
materials, environmental protection industries, chemical products -
water zinc sulfate, zinc sulfate heptahydrate, refractories, the
zinc oxide is the main raw materials for the production of
steel-making zinc ball. For Building construction, it is widely
used in the production for containers, fire board, arts and crafts,
vegetable greenhouses, wall insulation board, activity board,
asbestos etc. Because of good adsorption, low melting point, so it
is also used for paint coatings refractory bricks, magnetic
materials, ceramics, rubber tires etc.
Zinc oxide rotary kiln working principle is the whole process and
principles of the calcined zinc, zinc-containing materials.
Generally it adopts the zinc oxide rotary kiln to process of the
zinc-containing filter cake. The zinc in the filter cake mainly
exists in the form of zinc ferrite, oxide and sulfate. Under the
high temperature in the rotary kiln, the zinc ferrite and solid
carbon will produce the reaction for oxide-reduction, then it will
get the zinc, at the same time lead and cadmium sulfate also be
reduced, will volatilize in the form of sulfide and gold bucked
out. The reduced and volatilized metal from the solid phase will be
re-oxidation, and finally will be produced in the form of oxide.
Note: The amount of air into the zinc oxide rotary kiln should ensure
that the flue gas has sufficient oxygen to re-oxidize all the metal
vapor, sulfide and carbon monoxide. Increasing the amount of air in
the zinc oxide rotary kiln will increase the recovery zone to the
feed end. On the contrary reducing the amount of air, the reduction
area is shortened and the starting section of the reduction zone
extends toward the discharge end.
Zinc oxide rotary kiln is composed of kiln body, rolling ring,
support roller and support roller shaft, thrust roller,
transmission device etc.
Zinc oxide kiln body generally is welded (or riveted) by 20 mm
thick steel plate into a cylinder.
Rolling ring is not directly covered on the kiln body, but mounted
on the kiln body through the base plate, its function is to
strengthen the zinc oxide rotary kiln body, meanwhile,it can
transmit the weight of the cylinder to the thrust roller. For the
zinc oxide rotary kiln which is used for the production of
refractories, it normally has 5 to 8 rolling rings.
Support roller and support roller shaft:
The support roller is mounted on the support roller shaft by means
of a hot assembly, and the support roller shaft is mounted into two
bearings which have bronze bushings. The water temperature used for
bearing after cooling is not more than 25 degrees.
Catch roller :
The catch roller is a limiting device that limits the position of
the zinc oxide rotary kiln on the support roller, but it does not
prevent the body from moving up and down.
Zinc oxide rotary kiln is generally used to drive the rotation of
1. Zinc oxide rotary kiln has simple configuration, it can reduce
the investment costs and improve productivity.
2. Zinc oxide rotary kiln has high beneficiation efficiency, and it
can produce good quality zinc oxide by the calcination process, and
this kiln has less nodulation.
3. The entire zinc oxide production line has smooth operation and
large production capacity, in the smelting process, it can also
greatly reduce the fuel cost.
|Model||Kiln body size||Capacity||Rotate speed||Motor power||Weight||Note|
|φ3.0×48||3||48||3.5||25.6-29.3||0.6-3.48||100||237||Kiln Outside decomposition|
|φ3.2×50||3.2||50||4||40.5-42||0.6-3||125||278||Kiln Outside decomposition|
Contact: Wendy Liu