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.
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.
Sand 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.
Advantages Of Manufactured Sand
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.
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
It 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.
River pebble, granite, basalt, limestone, iron ore, etc.
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.
2. Sandstone, quartz sandstone, etc.
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.
3. Tailings, construction waste, coal gangue, etc.
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.
With the acceleration of the urbanization in the world, and the national new-type urbanization plan is also on the agenda, the market demand for aggregates is getting bigger and bigger, and the standards for the quality of aggregates are also getting higher and higher.
This has spawned the rise of a large number of sand making machine manufacturers. The number of sand making machine manufacturers has increased unprecedentedly. For users, how to find a suitable one from so many sand making machine manufacturers?
No I will tell you: Don't worry, there are 3 tips can help you!
1.Choose a responsible manufacturer
2. Do more comparison
3.Conduct field trips
The competition of sand making machine manufacturers is very fierce, if the existing manufacturers want to stand out in the industry, they need to establish a general view and pay more attention to the development of sand making machine. The development of sand making machine is very rapid, and its future development trends are mainly as follows:
1. Large-Scale Development
2. Environmental Protection
4. Development Of Mechatronics
6. Standardization Development
Basalt is a basic volcanic rock, an important component of the earth's oceanic and continental crust. The main components of basalt are feldspar and pyroxene. Due to different formation environments, different material components will be mixed, so they will also show different colors. To make basalt widely used, sand making processing for basalt is required. Manufactured sand processed by basalt can be used in industries such as pavement and building materials.
So, which sand making machine is effective for making basalt sand?
In today’s market, sand making equipment with low energy consumption, environmental protection, and advanced intelligence are more popular in the industry. For example, the VSI6X impact sand making machine produced by SBM not only meets national production standards, but can also be widely used in many industries like airports and buildings. , Cement, high-grade highways, railways. In addition, it is also suitable for large, medium and small-scale machine-made sand plants.
Lubrication 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.
The sand making machine is mainly composed of seven parts: feed, distributor, whirling crushing chamber, impeller experience, main shaft assembly, base drive device and motor.
Compared with the traditional sand making equipment, the design of the new equipment crushing cavity is more reasonable. The sand making machine adopts the principle of "stone-to-stone" or "stone-to-iron" in the production process.
During the whole crushing process, the materials are crushed by the impact of each other, without direct contact with metal components, which reduces pollution and prolongs mechanical wear time.
Work Flow of Sand Making Plant:
Vibrating Feeder - Jaw Crusher - Impact Crusher - Sand Making Machine - Vibrating Screen - Sand Washer
With the development of science and technology and the upgrading of technology, mining machinery is becoming more and more strict in the selection of crushing equipment. In the continuous research and development, transformation and upgrading, different types of sand making machines have appeared one after another. Here are the introductions of 4 main types of sand making machine on the market.
1. Compound Sand Making Machine
It is a traditional and classic type of vertical sand making machine with no grid section design and a very high sand output ratio. Compound sand making machine is mainly suitable for processing limestone, coal and other raw materials with a compressive strength below 140 MPa and humidity under 15%. A single sand making machine can produce sand, which is suitable for small scaled production plant.
2. Double Roller Sand Making Machine
In the working process of double roller sand making machine, the two rollers squeeze each other to process raw materials. And the rollers adopt highly wear-resistant materials, which can process raw materials with high hardness. Whether used for crushing or sand making, double roller sand making machine is very popular among sand and gravel production companies with small or medium scaled because of the low price.
3. Vertical Shaft Impact Crusher
Vertical shaft impact crusher is the new generation of sand making equipment. It is very cost-effective and is one of the most popular sand making equipment on the market. Vertical shaft impact crusher has high efficiency and the products have good grain shape and it has the dual functions of sand making sand shaping. Vertical shaft impact crusher adopts deep cavity impeller design, enhances efficiency by 30% and reduces wear by 40%. The sealed cavity design of the sand making machine reduces the influence of dust and noise, and realizes environmental protection.
4. Portable Sand Making Machine
Portable sand making machine can be used for single-machine production, or multiple units can be used for large-scaled sand production. There are two types of portable sand making machine: wheel-type portable sand making machine and crawler portable sand making machine. It can be transferred flexibly and has high production efficiency, suitable for factories where the material distribution is relatively wide or the environmental protection situation is very severe.
In artificial sand making industry, vertical shaft impact crusher, also known as sand making machine, is widely used as the main sand making equipment. There are two kinds of crushing methods of sand making machine: “rock on rock” and “rock on iron”. But, many people don’t know the differences of these two crushing methods very clearly. In this article, we mainly introduce the 2 crushing methods of sand making machine and their comparison.
Comparison Of Applicable Situations
Generally, “rock on rock” crushing method is used for shaping and “rock on iron” crushing method is used for sand making.
The “rock on rock” crushing method is suitable for crushing abrasive materials with medium hardness and above, such as basalt etc. During the crushing process, materials injected from the impeller impacts the material liner and do not directly contact the metal components of sand making machine, reducing iron consumption and thus reducing maintenance time. The shape of the finished products is good under the crushing method of "rock on rock".
The “rock on iron” crushing method is suitable for crushing abrasive materials with medium hardness and below, such as limestone etc. Under the “rock on iron” crushing method, sand making machine has high efficiency.
Compared with natural sand stone, artificial sand stone is widely used for its advantages of rich material sources, little seasonal impact on processing, good grain shape and grading of finished materials, enhanced concrete strength and reduced cement consumption.
In the design of artificial sand and stone system, sand making technology is the key. How to choose the right production technology to ensure the reliable operation, advanced technology and reasonable economy of the processing system is still an important problem in the design of the artificial sandstone processing system. This article introduces three kinds of sand making processes which are widely used at present.
1. Technology Of Rod Grinding Machine-Made Sand
The particle size distribution of artificial sand rolled by rod mill has a certain rule, that is, one kind of fineness modulus has only one kind of particle size gradation. Therefore, in the production of artificial sand, it is necessary to control the stability of fineness modulus, and the grading of its particle size does not need to be classified.
2. Technology Of Vertical Shaft Impact Crusher Sand
The high-speed rotating materials are used to break each other by themselves and friction between materials.
The vertical shaft impact crusher can be divided into "stone striking iron" and "stone striking stone" according to its working mode: the sand making machine impeller rotates at a high speed driven by the motor, throwing materials out of the impeller flow channel and hitting them on the reaction plate. The vertical shaft impact crusher equipped with the reaction plate is called "stone striking iron"; if the reaction plate is not installed, the materials thrown out by the impeller of the crusher will be hit and formed naturally This kind of situation is called "stone striking". The sand production rate of "stone and iron" is higher than that of "stone and stone".
3. Combined Sand Making Technology
Through the analysis of the sand production law and technological characteristics of rod mill and vertical shaft breaking, it can be found that the sand production rate, fineness modulus, powder content and product grading are all highly complementary. Therefore, the combination of rod mill and vertical shaft breaking can make up for their shortcomings.
Sand making machine is the common production equipment of sand making plant. It needs to cooperate with other equipment to meet the production requirements of different users. The question many users are concerned about is how much a set of sand making machine will cost.
The complete set of sand making machine will be more expensive than a single one. For the complete set of sand making machine, the equipment configuration is more perfect, the quality of the manufactured sand is better, environmental protection is higher, and the price is more expensive. A complete set of sand making machine quotation in 300,000-5,000,000, the larger the sand making plant, the higher the quotation.
The price of a complete set of sand making machine on the market is hundreds of thousands, and there is a big price difference and instability. So what factors lead to the price difference?
1. Cost Input
2. Specifications & Models
4. Supply & Demands
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.
We'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
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
Many users are always complaining the low production of their sand making machine after buying and want to know what the reason. In fact, in the actual production, there are many factors related to the output of sand making machine such as: the hardness of material, humidity, finished sand fineness, equipment quality, and so on. But 7 of them are the most crucial. The details are as follows:
1. Different Raw Materials
2. Design Of Sand Production Line
3. Machine Type
4. Quality Of Machine
5. Speed Of Impeller
6. Standard Operation And Periodic Maintenance
7. Requirements On Fineness Of Finished Sand