Oil Proppant (frac sand or ceramic sand) is a kind of products of
ceramic particle , which has a high fracturing intensity ,mainly
used for oilfield as downhole proppant , The usage is to increase
the output of oil and gas. So ceramic sand is a kind of green and
environmental protection products . Ceramic sand made of high
quality bauxite and other additive material, granulating and
calcining to increase the strength and density. It’s a substitute
of natural quartz sand, glass sand, metallic sand and other low
intensity proppant ,Ceramic sand is the best proppant to increasing
oil and natural gas output. In brief, the process of manufacturing
ceramic sand is:
crushing→dosing→grinding →granulating→calcining → cooling →screening packing
Proppant Production Process:
1. Crushing The size of bauxite from mine is around 300~500mm, low
moisture, After two-stage crushing which is composed by Jaw crusher
and hammer crusher, the size of bauxite will be around 25mm.
2. Dosing Bauxite, manganese powder, and other additional material
will be transferred to belt conveyor through belt weigher to make
sure the suitable proportion .If the moisture of bauxite or other
material is more than 6% need to be drying at first .
3. Grinding In grinding process ,the main equipment is ball mill and
separator to make a close-circuit grinding system .The granulator
required the material size will be lower than 300mesh .
4. Granulator Raw material powder after grinding stored in hoppers
.generally there have 2-3 hoppers, it can be discharged separately,
also can be discharged with many hoppers collocation. Raw material
powder will be transfer into a small silo, the silo has screw
metering device or belt weigher . Whatsapp:+8615617816797 The
material will be conveying to granulator, meanwhile the water will
be spraying to granulator by pipeline pump. When granulator
rotating, the raw material can be made into various particle size
Raw ceramic sand will be transported to rotary sceen by belt
conveyor, qualified sand will be calcined in rotary kiln, and the
oversize will returns to raw material grinding process. The
granulator system is totally automatic, continuously, matching with
bag-type dust collector, can purification the exhaust air.
5. Calcining Raw oil proppant be calcined in rotary kiln , with the
revolution and slope of rotary kiln, calcined ceramic sand move
toward to the kiln head, meanwhile, pulverized coal spray into the
kiln burner from kiln head, raw ceramic sand will be calcined into
ceramic sand with high intensity in the rotary kiln.
6. Pulverized coal preparation Pulverized coal preparation use ball
mill or vertical mill, which can drying the coal with hot wind from
kiln hoodsl. Use separator can adjust the fineness of pulverized
coal at will; it provides sufficient conditions for full burning of
7. Fineshed product cooling The cooling of ceramic sand genergally
use rotary cooler, it is simple and reliable when working,
secondary air of cooler absolutely enter to the kiln, multi-channel
burner, can save a lot of energy. The temperature of ceramic sand
after cooler is very low, can be touched by hand.
8. Screening oil proppant after the cooler can be directly
transported to multistage vibrating screen, it can be divided into
many particle grade according to requirements.
9. Packing oil proppant after screening will be transported to
different silos , the silos connected with packing machine ,
finished products will be transferred to storage house to prepare
for delivery. All dust points in the process need match with dust
collector to purification the exhaust air.skype:gary102884,