Artificial sand, also called crushed sand or mechanical sand (m sand), refers to rocks, mine tailings or industrial waste granules with a particle size of less than 4.75 mm. It is processed by mechanical crushing and sieving.
In China, the artificial sand was mainly used in the construction of hydropower systems. For example, the Three Gorges Project and the Yellow River Xiaolangdi Project used artificial sand to prepare concrete. Due to the remote environment of the hydropower project and the high quality of sand and gravel, the projects have taken the materials locally.
Many Indian states have decreed the use of crushed sand in infrastructure construction because of its high compressive strength and cohesion and the adverse environmental effects of river sand mining, which will greatly boost the demand for artificial sand.
There are both natural and human factors in the increasing demand for artificial sand. The former is that the natural sand is about to run out, while human factors include people's requirements for environmental protection and the need for high-quality concrete.
With the development of infrastructure, the natural sand resources formed by hundreds of thousands of years in many countries and regions have been almost exhausted, which has affected the further development of construction projects.
Driven by huge interests, natural sand has been indiscriminately mining, which changes the river course, affects the safety of river embankments, destroys the living environment of fish and contaminates the groundwater. The crushed stone sand is an important alternative resource to change this phenomenon.
In the process of mining river sand, it often produces a large amount of tailings which is not used reasonably. Especially in small mines, the tailings are piled up at random, occupying land and polluting the environment.
Besides, in urban planning and construction, a large amount of construction waste is generated, which actually can be crushed by the crushers to produce the artificial sand and aggregates for promoting resource utilization.
With the rapid development of concrete technology, the comprehensive performance of high-performance concrete and high-strength structural concrete has higher requirements on the quality of aggregates, requiring it with stable quality, good gradation and shape, while less and less natural sand meets the requirements. Therefore, people are turning their focus on artificial sand.
Artificial sand and mixed sand are mainly used in building construction, municipal construction, transportation, and other projects whose concrete strength grade is below C60. When meeting the corresponding technical requirements, they can also be used for concrete projects such as ports and water conservancy.
The vibrating feeder feeds the stone evenly into the coarse crushing machines for the primary crushing of the stone. The crushed stone from the coarse crushing equipment is transported through the belt conveyor to the fine crushing machines for the secondary crushing.
The primary crushing equipment directly processes supplied materials from the stone material factory and is the foremost processing plant. The jaw crusher is the ideal choice for primary crushing.
The secondary crushing equipment is responsible for the middle and fine crushing in the stone crushing process. The secondary crushing equipment mainly includes impact crushers and cone crushers.
The crushed material is conveyed by the belt conveyor to the crushed sand making machine for fine crushing. The finely crushed material is then screened through the vibrating screen for coarse sand, medium sand, fine sand and other specifications.
VSI sand making machine is called high cost-effective sand making equipment with low initial investment cost and good use effect. It is high in operation efficiency with the PLST crushing cavity.
The HVI sand making machine manufactured by Fote is more advanced in technology. Its butt ends and lubrication scheme are modular in design, and the peripheral guard plate can be turned up and down to extend its life cycle. It has the effects of sand making and shaping at the same time.
For those with strict requirements on the powder content of sand, a sand washing machine can be installed behind the sand manufacturing machine, and the sewage discharged from the sand washing machine can be recycled by the fine sand recovery plant.
The following video shows clearly the difference between crushed sand and river sand from the aspects of source, wastage, setting time, shape, silt content and so on. It is worth collecting and sharing with friends.
The table below shows the mix ratio of M15 M55 and M55 M55 concrete designed for artificial sand and river sand. The results show that in the same Concrete Mix Design, the strength of concrete by artificial sand is higher.
As the demand for aggregates from China, Africa, Latin America, Europe,etc. will continue to rise, and the price of artificial sand will also increase, the outlook for the global aggregate market for sand and gravel is worth looking forward to.
According to the Global Sandstone Aggregate report, by 2020, the demand for aggregates of sand and gravel in the Asia-Pacific region will increase the fastest in the world, and the growth rate of India, Vietnam, Malaysia, Indonesia and other regions will be among the best.
Due to the economic transformation, the demand for sand and gravel aggregates in China will slow down. However, the report predicts that by 2020, China will still be the world's largest aggregate demander, accounting for almost half of the world's total aggregate.
The Global Sandstone Aggregate report shows that the reserves of natural sand are gradually decreasing globally, and in some developing countries where the demand for aggregates and sand is huge, illegal sand mining has happened frequently. According to the report, by 2020, the reserves of natural sand resources in some countries will be quickly depleted.
The depletion of natural sand resources will lead to a sharp increase in the price of aggregates and artificial sand, especially in areas where the demand for aggregates is huge. It can be seen that the profit margin of the artificial sand is very large.
The m sand manufacturing machine produced by the supplier Fote is suitable for m sand making production line of high hard and abrasion-resistant materials such as limestone, quartz stone, granite, river pebble, basalt, cement, various ores, glass raw materials, mechanism building stone, gold slag, etc.
The limestone, widely distributed in nature, is easy to obtain. It is the main raw material for manufacturing cement, lime and calcium carbide. After being processed, limestone is used in large quantities as building materials. Generally, simple processing process is through the limestone sand production line.
Quartz is a hard, wear-resistant, chemically stable silicate mineral mainly composed of silicon dioxide. It is an important industrial mineral raw material generally used in glass, building materials, ceramics, high-tech electronics industry, etc. after crushing and sand making.
The granite has the characteristics of hard texture, high strength, abrasion resistance and weathering resistance. It has the title of "The King of Rocks" and is a good building material. It is rich in resources with low mining costs but high product value. Granite is a popular choice when the product needs to be weather-resistant or durable.
The river pebble resources are rich with low collection costs and high application value. After making sand from river pebble, it is widely used in water conservancy and hydropower, expressways, high-speed railways, passenger dedicated lines, bridges, airport runways, municipal engineering and high-rise buildings in the engineering field.
Basalt is the best material used for repairing roads, railways and airport runways. With the characteristics of strong compressive resistance, low crushing value and strong corrosion-resistance, it is the best cornerstone for the development of railway transport and road transport.
As a professional manufacturer of mechanical sand production equipment, Fote Heavy Machinery has rich experience in the design of mechanical sand production equipment, a perfect service system and professional after-sales team.
As a leading mining machinery manufacturer and exporter in China, we are always here to provide you with high quality products and better services. Welcome to contact us through one of the following ways or visit our company and factories.
Based on the high quality and complete after-sales service, our products have been exported to more than 120 countries and regions. Fote Machinery has been the choice of more than 200,000 customers.
A little over a month ago, NASAs Perseverance rover made a bold landing on the Martian surface thats now been viewed (and reviewed) by millions. But now, the actual work starts. Packed deep inside Percy is an instrument created to inhale Mars carbon dioxide-rich atmosphere and exhale oxygen. Actually, its a mechanical treeone that could forever change humanitys future on the Red Planet.
What breathes the maximum on a mission to Mars? Not the people, Michael Hecht, the Associate Director for Research Management at MITs Haystack Observatory and the main investigator of NASAs MOXIE project, told Popular Mechanics. Its the rocket that will result in taking you home from Mars that is going to get you off the planet.
Based on NASAs numbers, a four-person team will require many propellantsestimating 15,000 pounds of fuel and almost 55,000 pounds of oxygento create the thrust required to depart from the Martian surface and come back home. Carrying all of that oxygen from Earth is a difficult task. Thats where the Mars Oxygen In-Situ Resource Utilization Experiment, or MOXIE, becomes useful.
Nearly the size of a car battery, MOXIE is one of NASAs multiple in-situ resource utilization (ISRU) experiments. In spirit, ISRU is the agencys variety of homesteading, and the experiments search ways for future spacefarers to create things from resources find in other worlds.
If we seriously want to get off-planet and do something other than a science mission, you really have to begin exploring about living off the land, Jerry Sanders, who heads the ISRU Capability Leadership Team at NASAs Johnson Space Center in Houston, told Popular Mechanics.
NASA is investing precious time and loads of moneyabout 50 million in the case of MOXIEto invent strategies to create self-sustaining settlements on the moon as well as Mars. After years of research, were about to discover if MOXIEand other experiments like itcan really work.
Nowadays, the construction of our country is more and more important. The working pressure of the sand making machine for producing high-quality sand and stone is also continuously increasing. Today, I'm going to make a detailed introduction to sand making machine, about maintenance, environmental protection, investment and other directions.
In order to make the sand making equipment be able to carry out the production of sand and stone automatically and efficiently, the necessary maintenance measures are essential. In order to ensure the good performance of the sand making machine, only three steps are needed to make the sand making equipment as new as ever.
Step 1: quarry staff must do a good job in the regular inspection of the sand machine. No matter any sand making equipment, it is necessary to carefully check the internal key components when switching on and off the machine. This is to prevent serious wear of vulnerable parts, so as to effectively avoid greater damage to the sand machine.
Step 2: do a good job of lubrication and maintenance measures for wear parts. As we all know, the sand machine often needs to be crushed for a long time, which is bound to cause fatigue of some parts. If some lubrication measures are taken, its service life can be extended to a certain extent. It needs to be replaced frequently, so as to effectively solve the problem of dirt in the bearing of sand making machine.
Step 3: be careful not to allow the sand making equipment to work under high temperature for a long time. Any mining machinery can not bear the severe high temperature environment, which will burn some lines of the sand machine. According to the principle of heat expansion and cold contraction, the thermal stress produced by high temperature will make some parts inside the machine very large, which will cause certain difficulties to the good operation of the sand making machine. Therefore, it is necessary to ensure that the sand making equipment has a good working environment.
1. The equipment supplier of pebble sand making machine shall not only ensure the quality of equipment, but also take the road of green environmental protection. Compared with the traditional equipment, the production equipment of Shisheng River pebble sand machine is more uniform in particle size, which can reduce the consumption of minerals. Pebble sand making machine has powerful function, good effect, fine and even sand making, which can maximize the interests of customers.
2. Pebble sand machine is widely used in mines. By using the sand making machine, the early grinding of the ore can be carried out, which plays an important role in making the pebbles available for grinding and reducing the investment of grinding equipment. Non professional equipment can also meet the needs of work, but not so detailed.
3. The equipment supplier of pebble sand making machine is not only suitable for the crushing of soft and medium hard materials, but also ensures its role in the crushing of hard materials. This kind of sander is widely used in refractories, cement and other materials, as well as in ore, metallurgical slag and other places.
1. First of all, the noise elimination of our new sand making machine needs to start from our equipment itself. At present, our new sand making machine equipment is equipped with noise reduction system, which can not make the sound disappear, but can reduce the noise produced during the use of our new sand making machine
3. When using the new sand making machine, we can check our equipment to ensure that we will not have problems in the process of use, the vibration is small, and we can also indirectly reduce our noise.
On May 22nd, a stationary robot on Mars used its arm to scoop up some Martian sand. It then slowly dumped it onto itself, with the brisk Mars wind snatching the tiny grains and whipping them against the machines solar panels. The robot was NASAs InSight Mars lander, and the sand dump wasnt a mistake. It might sound counterintuitive, but the space agency aimed to actually clean one of the landers most sensitive components by using the sand as a tool to knock off a layer of rust-colored dust that covers the entire lander.
Unlike NASAs Curiosity and Perseverance rovers, the InSight lander relies on solar power to gather energy. It stores the power in its batteries so it can enjoy a steady supply of electricity to its vital instruments. Unfortunately, with Mars approaching its farther point from the Sun in its orbit, solar power is waning, and the reddish dust covering the lander and its solar panels is only making things worse.
Mars is often very windy and, as we all know by now, that wind can kick up a whole lot of dust. Massive dust storms regularly cover huge areas of the planet, and sometimes the entire planet, and that dust loves to settle on solar panels. InSight doesnt have an easy way of cleaning off its solar panels, and dust is just something that past missions to Mars have had to deal with. But with InSight experiencing a pretty dramatic drop in power collection thanks to the combination of the sticky dust and the Sun being farther away than it is for the rest of the year, the robots handlers decide to try something.
InSights team has been thinking up ways to try to clear dust from its solar panels for almost a year. For example, they tried pulsing the solar panel deployment motors (last used when InSight opened its solar panels after landing) to shake the dust off but didnt succeed.
After that attempt failed, the team came up with a different technique that, on the surface, sounds pretty silly. The idea was to gather sand and gradually drop it near the solar array but not piling it on top of the panels themselves. The scientists attempted this on May 22nd at noon, when JPL says the wind is at its strongest. The wind grabbed some of the sand grains and bounced them off of the solar panels, knocking a bunch of dust loose which was then carried away in the breeze.
The technique worked incredibly well, and while the solar panels arent totally free of dust, the portion that was affected by the sand-dropping strategy produced a bump in energy collection of 30 watt-hours per Martian day. InSight is currently in a two-year mission extension following its initial two-year primary mission. Lets hope the robot has enough power to keep going for as long as it needs to.
No one knew then whether any of the COVID-19 vaccines in development would actually work. Pfizer (NYSE: PFE) (along with its partner, BioNTech (NASDAQ: BNTX)), and Moderna (NASDAQ: MRNA) never experienced the worst-case scenario of their vaccines failing miserably. Could Pfizer and Moderna now face their second-worst scenario?
Oprah Winfrey and Gayle King have one the most enduring friendships in Hollywood, but that doesnt mean they dont have their petty moments. In a candid talk on OprahDaily.com during their Hawaiian vacation, the dynamic duo talks about their 45-year relationship and those sometimes awkward (but hilarious) moments. One big concern Oprah had involved whether their 
Olympian Gabby Thomas is speaking out and calling for support for Black athletes gearing up to compete in Tokyo this summer. It really hurts to see so many black people choosing not to watch the Olympics this year, Thomas tweeted on Tuesday. This comes in response to people saying they would boycott the Tokyo Olympics after sprinterShaCarri Richardson was controversially banned from the games due to a positive test for marijuana.
In the past 30 years, we have focused on the research, development and manufacture of mining crushing equipment, sand making equipment, industrial milling equipment, and keep improving them to build more environmentally friendly equipment.
Ganzhou Eastman Technology Co., Ltd. has for the target market in selling mineral processing equipment for rock crushing/grinding and sand making/washing operations. We provide those machines directly from our owned manufacturing workshop located in Shangyou factory or Shicheng factory based in Ganzhou, Jiangxi, China. So, as a customer you can properly get the most reasonable price equipment, also with promised good quality.Except saling our rock crushing & sand making equipment, we have Mining & Mineral Processing Engineer helping you make the right choice in crushing process and sand making processing. Also, our experienced exports are willing to help you design the perfect product line for your aggregate plant or sand making plant.
You can buy from us almost every material crushing processing equipment starting from crushing, grinding, sand washing & making, classification. And there are many customers cases you can find in our site.
Sand making production line consists of vibrating feeder, Jaw Crusher, Cone Crusher, Impact Crusher (sand-maker), Vibrating Screen, Sand Washer (sand classifier), Belt Conveyor, water treatment system and centralized electronic control system.