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According to the introduction of the previous article, we mainly learned about five kinds of equipment commonly used in quartz sand beneficiation, including rod mill, magnetic separator, flotation machine, hindered settler, and XCIII hydrocyclone. In this article, we will mainly introduce high-frequency high-efficiency dewatering screen, inclined plate thickener, scrubber, desliming bucket, and slurry pump. These five types of equipment are also commonly used in quartz sand concentrators.
01
High-frequency and high-efficiency dewatering screenBack
The structure of high-frequency and high-efficiency dewatering screen includes vibration motor, screen, dewatering screen frame, support and rubber spring. High-frequency and high-efficiency dewatering screen is a new type of high-efficiency dewatering equipment with simple structure, convenient maintenance and simple operation.
In the quartz sand concentrator, the high-frequency and high-efficiency dewatering screen adopts a unique sieve plate structure, and the high-frequency vibration of the motor not only makes it difficult for the pulp particles to pass through the screen holes, but also has a higher dewatering efficiency, and the final water content is less than 15. % of dry heap tailings.
High-Frequency and High-Efficiency Dewatering Screen
02
Inclined Plate ThickenerBack
The inclined plate thickener is a slurry gravity thickening equipment designed with inclined parallel plates in the settlement area. The whole machine includes an upper box and a lower cone.
For the quartz sand concentrator, the concentration process of the inclined plate thickener is completed in each independent inclined plate channel, and the fine-grain overflow or clean water is directly discharged laterally from the overflow surface of each channel, which shortens the overflow discharge path and effectively solves the problem. The problem of short circuit and circulation of fine particles in the overflow discharge process ensures a high classification and concentration efficiency, and the return water efficiency of classification and concentration can generally reach more than 70%. Compared with other thickeners, the inclined plate thickener used in the quartz sand concentrator can accelerate the separation of ore particles, shorten the material settling time, strengthen the separation and settling process, improve the concentration efficiency, reduce capital investment, and increase the production capacity by about 3 times.
Inclined Plate Thickener
03
ScrubberBack
With the help of the mechanical force of the scrubbing machine and the grinding force between the sand particles, the thin-film iron, bonding and muddy impurity deposits on the surface of the quartz sand are removed, and the mineral aggregates that have not been formed into monomers are further scraped, and then further purified by the classification operation. The role of silica sand.
At present, the quartz sand scrubbing equipment mainly includes high-efficiency stirring scrubbing machines and spiral groove scrubbing machines.
The high-efficiency stirring scrubber is mainly composed of a motor, a reducer, a main shaft, upper, middle and lower impellers, and a tank body. The motor drives the three-layer specially designed rubber impeller on the main shaft to rotate through the hard-tooth surface reducer, and scrubs the material strongly. , low failure rate, suitable for natural or artificial sand with mineral particle size of 0-6mm, various loose mud particles or materials, for particle scrubbing and cleaning and mud material dispersion, dissociation, separation, can effectively remove glue adhered to Solvents and soils on mineral or material surfaces.
Spiral groove scrubber is composed of groove body, left and right helical blade shaft, transmission device and so on. The motor drives the two helical shafts to rotate relative to each other through the reducer and the large and small gears, and the blades on the helical shaft are staggered. The mud mass and the ore particles adhering to the surface of the ore slime are rubbed and scrubbed with the help of the blade and rinsed with an appropriate amount of high-pressure water from the upper end of the tank body, so that the ore slime can be broken up and separated from the ore particles to achieve the purpose of washing. The spiral groove scrubber has a better washing effect for the quartz sand with a certain proportion of mud content, especially for the viscous mud mass.
Scrubber
04
Desliming BucketBack
The desliming bucket is a simple equipment for classification, desliming and concentration. The pulp is fed into the central cylinder along the tangent direction and flows out from the bottom edge after buffering. The outflow pulp flows radially to the surrounding overflow dam. During this process, the coarse particles whose sedimentation velocity is greater than the liquid upflow velocity will settle in the tank and be discharged through the bottom grit. The fine particles enter the overflow tank with the surface slurry. Usually, the feeding particle size is less than 2mm, and the classification particle size is 75um or finer.
05
Slurry PumpBack
The slurry pump is an important slurry conveying equipment in the quartz sand concentrator, and its function is to transport the slurry to the desliming bucket, the box filter press or other slurry transportation links. The slurry pump is lined with XH wear-resistant rubber, which not only enhances its own wear resistance, but also ensures that the desliming bucket and the box filter press are in good working condition and prolongs the service life of the slurry pump.
Slurry Pump
06
SummaryBack
In the actual beneficiation process, the selection of quartz sand beneficiation process and equipment is often determined according to various factors such as the nature of quartz sand ore, beneficiation plant conditions, and investment budget. If you want to select quartz sand more economically and environmentally, you should first carry out a mineral processing test, comprehensively analyze the properties of the ore, and obtain a scientific mineral processing test report, so as to judge which type of quartz sand beneficiation process and quartz sand beneficiation equipment to use. Comprehensive consideration The beneficiation plan is determined after the actual situation, investment and other factors of the beneficiation plant, and the quartz sand beneficiation equipment is tailored to achieve the ideal return on investment.
The equipment configuration of artificial sand making plant includes vibrating feeder, coarse crusher, medium and fine crusher, vibrating screen, sand making machine, belt conveyor. Among them, feeders, vibrating screens and conveyors are auxiliary equipment.
1. Feed
The stones blasted from the mountain are sent to the vibrating feeder through the dump truck. Vibrating feeder has strong adaptability, stable operation and high cost performance. It is a feeding equipment widely used in sand and gravel enterprises. The vibrating feeder can feed the crushing equipment continuously and evenly, effectively prolonging the service life of the equipment. Small volume, light weight, small power, compact structure, convenient installation, low operation cost and low investment cost.
2. Coarse and Fine Crushing
According to different crushing purposes, crushers are divided into coarse crushing and medium fine crushing: coarse crushers can process large stones to medium particle size at one time; The medium and fine crusher is mainly used to further crush and reshape the coarse crushed stone to meet the high standard requirements of construction projects for stone. The vibrating feeder evenly sends the stones to the jaw crusher, and the broken stones from the jaw are broken for the first crushing, that is, coarse crushing. The stones broken from the jaw are then transported to the cone crusher or impact crusher through the belt conveyor for secondary crushing, that is, fine crushing.
3. Sand Making and Screening
The finely crushed materials are sent to the sand making machine by belt conveyor for fine crushing, and the finely crushed materials are screened out by vibrating screen.
The general production line can be completed by the above three steps, but for those with strict requirements on the powder content of sand, a sand washer can be added after fine crushing and screening. Circular vibrating screen and linear vibrating screen are common in sand production line. Belt conveyor is the hub of sand production line. It has the advantages of low kinetic energy consumption, high production efficiency, large conveying capacity, flexible use, economy and practicality.
Get PriceView MoreWe've had a lot of discussion about the sand making machine. In operation, it's inevitable that sand making machine will encounter a variety of problems. Once sand maker being in breaking down, it will affect the production efficiency and then affect the economic benefits.
Today we will provide you with a summary of 10 common failures and teach you how to deal with them. I hope this article will help you in the future if you encounter such problems.
Fault 1: The Equipment Is Not Running Smoothly With Overmuch Fuselage Swings
Fault 2: The Equipment Made Abnormal Noise During Operation
Fault 3: Bearings Are Not Flexible
Fault 4: High Temperature Of Bearings
Fault 5: The Sealing Rings Of The Shaft Are Damaged
Fault 6: Oil Soaks Into The Upper And Lower End Of The Shaft
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Fault 7: The Discharge Size Becomes Larger
Fault8: The Machine Sounds Rise Suddenly With A Boom
Fault 9: Excessive Idling Resistance
Fault10: There Is A Clanking Of Metal In The Sand Making Machine
Get PriceView MoreSand can be divided into natural sand and manufactured sand'
Natural sand: Rock particles with a particle size of less than 5mm, formed by natural conditions (mainly weathering of rocks), are called natural sand.
Manufactured sand'rock, mine tailings or industrial waste slag particles with particle size less than 4.7MM, which are made by mechanical crushing and screening after soil removal treatment, but soft and weathered particles are not included.
1. The raw material of manufactured sand is fixed and produced after being broken by special crushing equipment. The mechanized production mode ensures the quality of manufactured sand is stable, adjustable and controllable, and can adjust the relevant parameters such as particle size distribution and fineness according to the needs of the project, which has better engineering applicability than river sand.
2. The surface of river sand is usually smooth after being scoured by water flow, while the manufactured sand has many sections and rough surface, so the machine-made sand particles can better combine with cementitious materials such as cement.
3. The raw materials of manufactured sand sand can come from some solid wastes. At the same time, in urban planning and construction, a large number of construction waste can be broken by mobile crusher to produce and process recycled aggregate, which not only solves the problem of environmental pollution, but also improves the utilization rate of natural resources.
4. During the period of shortage of river sand resources and rapid rise of raw material prices, the production cost of concrete enterprises can be reduced and the impact on the engineering field can be reduced.
Get PriceView MoreThe Internet of Things (IoT) is revolutionizing various industries, and the sand making sector is no exception. By integrating IoT technology into sand making machine, manufacturers can enhance operational efficiency, improve product quality, and ensure better maintenance practices. Here's a detailed look at the role of IoT in sand making machine.
The integration of IoT technology into sand making machines is transforming the industry by enhancing efficiency, safety, and sustainability. With real-time monitoring, predictive maintenance, and improved automation, IoT is not only optimizing operations but also paving the way for smarter and more environmentally friendly sand production. As the technology continues to evolve, its impact on the sand making industry is expected to grow, offering new opportunities for innovation and improvement.
Get PriceView MoreLubrication is an important part of daily maintenance of sand making machine. Lubricating can reduce wear of mechanical parts and extend their service life. In addition, the frictional heat generated during the operation of the equipment can also be dissipated through lubricating oil.
But there are still some problems even if we have already lubricated the sand making machine regularly. Now we can tell you that it may be due to a failure of lubrication. So the question is what causes the failure of lubrication? And how should we do?
Actually, there may be many reasons for the failure of lubrication of sand making machine, but here I will list 5 major reasons that cause the lubrication of sand making equipment failed.
1. Lubricating Oil Deterioration
2. The Sand Making Machine Is Clogged
3. Inappropriate Lubricating Oil
4. The Lubrication System Is Short Of Oil
5. There Are Impurities In Lubrication System
In addition, if you want to do lubrication well when using the sand making machine, you also need to buy qualified lubricating oil and maintain the correct lubrication operation.
Get PriceView MoreRotor is the core component of sand making machine. The principle of the sand making machine is to use the inertial kinetic energy of the rotor to rotate at a high speed to project the material in the circumferential direction through the channel of the rotor wheel, and impact the material accumulated on the impact anvil or the lining plate for impact crushing or shaping. The reshaped and rebounded materials are then crushed by the hammer plate integrated outside the high-speed rotor.
After the rotor vibrates for some reason, it is very likely to cause vibration of the entire equipment, and the vibrating rotor will greatly affect the use of the equipment, and even lead to failures. Here are 9 reasons and solutions for abnormal vibration of sand making machine.
As important equipment for sand production, sand making machine plays a vital role in ensuring stable supplies of manufactured sand to meet various construction needs. However, operating such high-performance machines under heavy-duty conditions requires diligent maintenance practices to maximize performance and longevity.
Maintenance is crucial for the efficient and prolonged operation of a sand making machine. Here are some general guidelines for the maintenance of a sand making machine:
Sand making machine is one of the commonly used sand making equipment. Improve the production efficiency of sand making machine can help customers get higher profit. Here are 4 tips to improve the production capacity of sand making machine in the production process.
1. Adjust The Speed Of Belt Pulley Properlye
2. Pay Attention To Lubrication And Change The Worn Parts Timely
3. Feeding Continuously And Evenly
4. Properties Of Raw Material
Get PriceView MoreIt is understood that as long as the water content of the ore is within a certain range, it can be used to produce manufactured sand by sand making machine. In the mining industry, there are nearly 200 kinds of stones can be used to produce manufactured sand, including solid wastes such as tailings, construction waste, coal gangue, etc. Here is an introduction to common manufactured sand materials and corresponding sand making equipment.
These stones are all ideal materials in for building. They are hard in texture and can be used as raw materials in sand making production. For example, manufactured sand made of basalt can be mixed with concrete, which can reduce the weight of concrete, and also has the functions of sound insulation and heat insulation. It is a good aggregate for lightweight high-rise building concrete. The manufactured sand produced from river pebbles is often used for road paving and house construction. The stone powder produced in the production of machine-made sand from granite and limestone can also be reused.
These stones are mainly composed of feldspar and quartz, which belongs to sedimentary rock. They are good raw material for manufactured sand in terms of grain shape and strength, which can reach or even be better than natural sand. In addition, manufactured sand produced by sandstone also has the advantages of non-weathering, non-melting, sound absorption, and moisture-proof, and it is also a good building and decoration material.
When we use sandstone to crush into construction sand, it needs to go through the production process of crushing, sand making, screening, etc. The whole crushing plant needs to be reasonably matched to achieve low investment and high efficiency. According to the characteristics of sandstone, sandstone is suitable for the following equipment.
These stones belong to industrial solid waste. But with the advance of sand making process, these wastes are also "treasures", especially construction waste. In recent years, construction waste treatment is a very popular field in aggregates industry, and it has been sought after by a large number of investors. Construction wastes contains lot of crushed stones, concrete blocks, bricks and tiles, which can be crushed and made into new aggregates, and then used in highways and construction.
Using these industrial wastes to make manufactured sand can not only save costs and get high profits, but contribute to waste recycling.
Get PriceView MoreThe machine used to turn rocks into sand is called a sand making machine, also known as a vertical shaft impact (VSI) crusher.
In the construction and mining industries, the demand for high-quality sand is ever-increasing. Sand serves as a crucial component in concrete production, asphalt, and various construction applications. To meet this demand, the sand making machine has emerged as a vital piece of equipment, transforming rocks and other materials into fine sand.
Sand making machines play a crucial role in various industries, including:
As important equipment for sand processing in manufactured sand production, the sand production efficiency is closely related to the overall benefit of operation. So, what method can effectively improve the sand production efficiency of sand making machine when crushing river pebble? Let's see it!
1. First of all, replace the shaft in time
Shaft is a very key point for the normal operation of the sand making machine, but it's prone to wear out, so it's necessary to replace the shaft every once in a while. It is cleaned during the replacement process and then lubricants should be added to make the shaft better serve the sand making machine.
2. Check the condition of the parts inside the machine regularly
If the vulnerable parts are not replaced in time, it will not only delay the production and affect the efficiency of sand making equipment, but also cause great damage to the equipment itself in serious cases. Therefore, users should develop the habit of checking the equipment regularly and replacing the worn parts in time.
3. Notice the tightness of the transmission belt
Excessive tightness will affect the power transfer of motor to the sand making machine, thus affecting the sand production efficiency. So it is necessary for users to pay attention to the tightness of the power transmission belt.
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