The cylindrical washing machine is a key equipment for raw material
pretreatment in large-scale quartz sand production lines (with a daily
processing capacity of ≥ 3000 tons), responsible for removing clay, mud, and
soluble impurities from the surface of quartzite raw materials (requiring a
washing cleanliness of ≥ 97% and a processing efficiency of ≥ 400t/h), laying a
quality foundation for subsequent crushing and grading processes. In actual
production, many enterprises face problems such as scaling and blockage of the
cylinder, incomplete ore washing, and rapid wear of the inner wall, which
directly lead to low raw material utilization and a surge in subsequent process
loads. Shanlu Heavy Industry has been deeply involved in the field of quartz
sand equipment for many years, combining massive on-site practical experience to
develop targeted optimization plans and accurately solve equipment operation
pain points.
Pain point one: scaling and blockage of the cylinder, frequent shutdown and
cleaning
The clay in quartz sand raw materials is prone to adhere to the inner wall of
the cylinder when it comes into contact with water, forming thick scale (over
10mm) over a long period of time. This not only reduces the effective washing
space, but also leads to poor material circulation and blockage of the discharge
outlet. Shanlu Heavy Industry Optimization Plan: Firstly, upgrade the internal
structure of the cylinder by installing a detachable wear-resistant scraper
plate on the cylinder wall, combined with high-frequency vibration components,
to real-time scrape off adhered dirt and reduce scale accumulation from the
source; The second is to optimize the water inlet system, using a customized
circular high-pressure spray device from Shandong Heavy Industry to spray
high-pressure water from multiple angles (pressure 0.4-0.6MPa), which not only
enhances the ore washing effect but also flushes the residual mud and dirt on
the cylinder wall; The third is to adjust the rotational speed of the cylinder,
stabilize the speed at 8-12 r/min through a frequency conversion system,
increase the rolling force of the material, and avoid local scaling.
Pain point 2: Incomplete ore washing and excessive residual impurities
Traditional cylindrical ore washing machines rely solely on material rolling
and friction for ore washing, which lacks the ability to clean stubborn mud and
dirt, resulting in residual impurities in raw materials exceeding 3% and
affecting the quality of finished sand. Shanlu Heavy Industry targeted
optimization: adding a spiral guide and stirring device inside the cylinder to
guide the orderly rolling of materials while enhancing friction and collision
between materials, resulting in more thorough removal of stubborn dirt and
grime; Accurately matching the water inflow based on the mud content of raw
materials, regulating according to the standard of "1.0-1.3m ³ of water per ton
of raw materials", and combining with Shanlu Heavy Industry's special low
foaming mineral washing agent (environmentally friendly and residue free), the
cleanliness of mineral washing is improved to over 98%; Install a screening and
filtering device at the discharge end to promptly separate raw materials that
have not been washed, reflux and re wash to ensure that the discharge quality
meets the standard.
Pain point three: The cylinder wears out quickly and the equipment has a
short lifespan
Quartz sand has high hardness, and long-term impact friction can easily cause
wear and thinning of the cylinder wall (with an annual wear of over 8mm),
shortening the service life of equipment. Shanlu Heavy Industry's solution:
using high-strength manganese steel cylinder body, surface welding high chromium
alloy wear-resistant layer (thickness 5-8mm), the wear resistance is increased
by more than 3 times, and the equipment service life is extended to more than 5
years; Optimize the design of the lining plate inside the cylinder, using
polyurethane wear-resistant lining plate customized by Shandong Heavy Industry,
which not only reduces the impact wear of materials on the cylinder wall, but
also reduces material adhesion; Install a buffer device at the feed inlet to
reduce the impact force of raw materials entering, avoid excessive local wear,
and protect the sealing structure at the end of the cylinder.
This optimization plan has been applied in large-scale quartz sand production
lines in Shandong, Anhui and other places. After adopting the optimized
cylindrical washing machine from Shandong Heavy Industry for a 3500t quartz sand
project, the equipment scaling and blockage rate was reduced by 90%, the monthly
shutdown cleaning time was shortened to less than 2 hours, the ore washing
cleanliness remained stable at over 98.5%, and the equipment operation and
maintenance cost was reduced by 45%, which has been highly recognized by
customers.
Shanlu Heavy Industry has always focused on the production needs of quartz
sand enterprises, providing one-stop services for equipment customization,
optimization and transformation, and after-sales operation and maintenance.
Tailored to different raw material characteristics and production conditions,
Shanlu Heavy Industry provides efficient and stable equipment solutions. If you
need optimization solutions or equipment selection suggestions for cylindrical
washing machines that are suitable for your own production line, you can contact
Manager Zhang at 13583776655 and WeChat. Our professional team provides
one-on-one communication to help enterprises improve production efficiency and
reduce operating costs.