Introduction
In the field of mechanism sand production, vertical sand making machines have
become the core equipment for crushing materials such as granite, river pebbles,
and construction waste due to their significant characteristics of high sand
production rate and low energy consumption. This article provides a
comprehensive decision-making reference for sand and gravel plants, covering
working principles, performance advantages, and selection strategies.
1、 Core working principle of vertical sand making machine
The vertical sand making machine adopts the centrifugal impact crushing
principle to achieve fine sand making:
High speed feeding stage: The material enters the rotating impeller and
accelerates to 60-80m/s under the action of centrifugal force;
Multi layer crushing stage: high-frequency collision between materials and
surrounding protective plates, completing 3-4 levels of crushing;
Particle size control stage: By adjusting the height of the waterfall flow
material, the proportion of finished sand from 0-5mm is controlled to be over
85%.
Compared with traditional hammer sand making machines, its vertical structure
reduces energy consumption by 30%, and the finished sand particle type is closer
to natural sand (needle like content ≤ 8%, in compliance with GB/T14684
standard).
2、 Five core performance advantages
Efficient and energy-saving
In the dual motor drive mode, the power consumption of the equipment with a
capacity of 100 tons per hour is only 220-260kW, which saves 25% compared to
traditional equipment.
High quality finished products
The multi cavity crushing design allows the fineness modulus to be controlled
within 2.3-3.0, and the stone powder content to be adjusted within a range of
5-15% (suitable for different concrete grade requirements).
Wear resistant and durable
The service life of the composite alloy hammer head is 800-1200 hours, and
the replacement cycle is extended by three times (measured data under basalt
working conditions).
Environmentally friendly and low-noise
Fully enclosed structure with pulse dust removal, working noise ≤ 75dB, dust
concentration<10mg/m ³.
Intelligent operation and maintenance
Equipped with a vibration monitoring system, real-time warning of abnormal
bearing temperature (alarm threshold 85 ℃) and rotor imbalance (accuracy
0.02mm).
3、 Typical application scenarios and benefits
Granite sand production: The crushing value of finished sand is ≤ 20%, and
the qualified rate of sand for C60 concrete is 100%;
Construction waste recycling: The crushing rate of brick and concrete waste
into sand reaches 65%, saving 40% of natural sand procurement costs;
Iron ore tailings treatment: The utilization rate of 0-3mm tailings sand has
been increased to 90%, reducing land occupation for storage;
Quartz sand shaping: spherical degree increased by 30%, added value increased
by 50 yuan/ton.
4、 Key parameters for equipment selection
Processing capacity: The 50 ton machine model needs to be matched with raw
materials with a particle size of ≤ 50mm;
Motor configuration: It is recommended to choose IE4 energy-efficient motors,
which can save over 80000 yuan in annual electricity bills;
Wear resistant material: High chromium cast iron (HRC ≥ 58) and tungsten
carbide composite lining plate are preferred;
Control system: It is required to have automatic adjustment of feed quantity
and iron protection function.
5、 Key points of daily maintenance
Lubrication management: Add 3 # lithium grease every 400 hours, and control
the bearing temperature rise to<35 ℃;
Wear monitoring: When the thickness of the protective plate is less than
30mm, it should be replaced in a timely manner to avoid a decrease in
efficiency;
Vibration control: When the no-load vibration value is greater than 4mm/s,
dynamic balance calibration is required;
Seasonal maintenance: Strengthen motor insulation testing during the rainy
season (resistance>500M Ω).
6、 Industry technology evolution direction
In 2025, vertical sand making machines will undergo three major upgrades:
Hydraulic control technology: achieving stepless adjustment of discharge
particle size, reducing switching time to 10 minutes;
Digital twin system: Virtual debugging increases installation efficiency by
50%;
Low carbon transformation: The photovoltaic drive system reduces carbon
emissions by 60% and meets the requirements of green mines.
epilogue
The vertical sand making machine is reshaping the production standards of the
sand and gravel aggregate industry through structural innovation and intelligent
control. Whether it is building a new sand and gravel production line or
upgrading an existing production line, choosing suitable vertical equipment can
improve comprehensive efficiency by more than 30%. Our professional engineering
team can provide you with customized configuration solutions.