Sand making production machine---Popular 6 kinds crusher

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Sand Plant (Sand making production line) produces high-quality artificial sand, an alternative of river natural sand, for the building, construction industries where demand high quality aggregates. All of which could produce aggregates from granite, basalt, pebbles, limestone, river pebbles, calcite, slag, etc. Sand making machine is important equipment is sand plant. There are 6 kinds of sand making machines hot selling in market now.

 

>>>  VSI Sand making machine
>>>  PC Hammer crusher
>>>  PCX Fine crusher
>>>  DG Double roller crusher
>>>  PFL Compound crusher
>>>  Mobile sand making plant

 

Keep in mind that the best choice for a sand maker depends largely on your actual usage and budget needs. Read our full article below to find out all about the various sand making machines and how to choose the right one.

 

1.VSI sand making machine

Vertical shaft impact crusher ( VSI sand crusher) offer higher reduction ratios at a lower energy consumption. These impactors can be considered as a &#;stone pump&#; operating like a centrifugal pump. The material is fed through the centre of the rotor, where it is accelerated to high speed before being discharged through openings in the rotor periphery. The material is crushed as it hits the liners of the outer body at high speed and also due to the rock-on-rock action. These crushers are mainly used in the production of fine materials, including sand, with a good cubical shape.

> Advantages

1.The VSI&#;s high cubical fracture percentage maximizes first-pass product yield and produces tighter particle size distribution.
2.It has a high-throughput capacity. Properly configured the VSI accepts highly abrasive materials.
3.It has simple operation and maintenance. You can quickly change product size by changing rotor speed or cascade ratio. Some models have reversible wear parts to reduce downtime.
4.The VSI typically has low operating costs even in high-moisture applications because of reduced energy costs and low wear cost per ton.

 

> Disadvantages

1.There are some feed size limitations with a VSI because of the small feed area available in the center of the rotor.
2.The high RPM and HP require careful balance maintenance such as replacing parts on both sides of the rotor at the same time.
3.High wear part cost may be a problem for some hard abrasive materials, but the VSI may still be the best option.

 

PC Hammer crusher

Hammer crusher is a stone crusher in which a hammer hits the material that is being crushed. In the hammer crusher, crushing takes place by impact between the hammers and breaker plates. Hammer crusher can crush medium hardness and brittle materials, such as limestone, slag, coke, coal, etc. 

 

> Advantages

1.The finished product size is adjustable by controlling the grate openings, rotor speed, hammer capacity, etc. 
2.Large crushing ration. Hammer crusher can crush the 600-mm materials to below 25 or 25 mm.
3.Its structure is simple, compact size, light body weight, easy operation and maintenance. 

 

> Disadvantages

1.Hammer crusher working parts (such as hammer, grate, etc.) easily broken, need to be changed frequently, therefore, we need to consume more metals and downtime.
2.The grate bars prone to clogging, especially humidity, containing clay materials, causes a significant decrease of production capacity.

 

PCX fine crusher

PCX Series high efficient hammer fine crusher is new type multi-functional stone crusher improved after processing on the basis of the impact crusher. It is widely used for fine crushing of various brittle materials and minerals whose compressive strength is not more than 100Mpa and surface moisture is not more than 15%, such as granite, basalt, limestone, river pebble, cement clinker, quartz stone, bauxite and so on.

> Advantages

1.Uper fine crushing: It adopts the design of grate plate and the rigid hard extrusion crushing, which makes the fine crushing efficiency greatly improved. The output size being smaller than 3mm can reach 85%, finished particle size is fine and uniform.

2.Easy maintenance: Convenient inspection and maintenance device, which make hammer adjustment and screen plate become easier.

3.Super long life: Wear-out part adopts new excellent multielement high chromium alloy which ensure abrasive resistance and shock resistance of the liner plate.

4.High efficient Energy Consumption: This series crusher possesses stable operation, low dust, low power consumption.

 

> Disadvantages

1. The feed particle size of the fine crusher is controlled within 190mm, and it is mostly used in the three-stage crushing (that is, sand making) link after fine crushing
2. The grain shape of the sand produced by the fine crusher is not as good as that of vsi
3. Hammers and grating bars need to be replaced regularly

 

DG Double roller crusher

The double-roller crusher can be used for finely crushing various high and medium hardness ores and rocks. Especially in the construction material industry to produce melon stone and mung bean paste and other products, the double roller crusher has better effect than the general crushing machinery.

 

> Advantages

1.The crushing particle size of the double roller crusher is between 1-20mm, and the specific discharge particle size can be realized by adjusting the gap between the two rollers.
2.With high capacities and minimum downtime, this rolling crusher is ideal for both soft and medium-hard rock crushing applications.
3.The hydraulic gap adjustment mechanism allows for consistent product size even as the roll liners wear, resulting in a more efficient and consistent crushing process.

 

> Disadvantages

1.The sand product shape and gradation of roll crusher are better than hammer crusher, but worse than VSI crusher.
2.It is required to feed the material evenly and continuously,, otherwise the wear of the roller will be uneven, and the sand particle size will not be uniform.
3.For the smooth roller crusher, the size of the feed block is much smaller than the diameter of the roller, so it is not suitable for crushing large materials.

 

PFL Compound crusher

PFL Compound crusher is also called vertical crusher because of its vertical shaft with up and down placement structure design. It could be used for fine crusher and coarse grinding process and it is one of the general equipment in sand production line and gravel production plant.

 

> Advantages

1. Simple and reasonable structure, low operating cost. Using the principle of rock-on-rock, the wear is small.
2. It is less affected by the moisture content of the material, and the moisture content can reach about 8%.
3. It has the functions of fine crushing and coarse grinding. It is common sand making machine.

 

> Disadvantages

1.When the moisture contained in the material is large, it is easy to adhere to the crushing cavity to cause blockage during the feeding and conveying process, resulting in a decrease in the sand making capacity;
2.It will be more difficult to process materials with high hardness, and the wear on the vertical shaft crusher will be more serious, resulting in slower sand making speed

 

 

Mobile sand making plant

The mobile sand making machine can be easily moved to different locations as needed for the sand making and screening work. It is easy to operate and has high output. All above sand crusher machine could be made into mobile crushing and screening plant.

 

Advantages

1. The mobile sand making machine is similar to a small crushed sand production line, which can complete the coarse crushing, medium crushing and fine crushing of ore materials at one time.
2. The mobile sand making machine can crush and make sand on site, which greatly reduces the transportation cost of materials;
3. Since the mobile sand making machine inherits the advantages of traditional sand making equipment, the finished machine-made sand after sand making is mostly cubic, with reasonable gradation, which can fully meet the current demand for construction sand.

 

Disadvantages

1.Mobile crushers may have limited capacity compared to stationary crushers, which can be a disadvantage for larger sand making plants.
2.Mobile crushers may have limited mobility on rough terrain or in tight spaces, which can limit their use in some applications.

 

 

Pepple Also Frequently Asked Question - FAQ:

What is the price of VSI crusher machine?

Vsi Crusher product price in India ranges from 90 to 1,00,00,000 INR and minimum order requirements from 1 to 10. Whether you're looking for VSI 800 Machine, VSI-5X Impact Crushers, VSI Crusher etc, you can explore and find the best products from Baichy Machinery. We offer a wide range of Vsi Crusher selections

 

How does a sand crusher work?

A crusher usually consists of a hopper, a feeder, and a crushing mechanism. The hopper is used to contain the rocks that enter into the crusher. The feeder pushes the rocks into the crushing mechanism where it is then broken down into smaller pieces of sand. The vibrating screen will help to get different size sand.

How to make sand for construction?

It is produced by the crushing of granite rocks. Coarse hard rock deposits are crushed in crushers and the crushed material is segregated in different fractions. The sand obtained through this process is further refined by removing fine particles and impurities through sieving and washing.

 

What is the sand size?

Based on the grain size of the particle, sand is classified as Fine Sand(0.075 to 0.425mm), Medium Sand(0.425 to 2mm), and Coarse Sand(2.0 mm to 4.75mm)
Based on origin, sand is classified as Pit sand, River sand, Sea sand, and manufactured sand.

 

 

Share To&#;

1. What is the mechanism sand?

Answer: The mechanism sand refers to the sand processed by the sand making machine and other ancillary equipment. It can be processed into sand of different rules and sizes according to different process requirements.

2. What equipment is usually required for a machine sand production line?

Answer: The mechanism sand production line usually needs equipment such as sand making machine, vibrating feeder, jaw crusher, cone crusher, impact crusher, vibrating screen, belt conveyor, sand washing machine, etc., according to different process requirements. Various types of equipment are combined to meet different process requirements of customers.

3. Advantages of machine sand compared to natural sand

Answer: 1) Stable supply

Due to years of exploitation, natural sand is getting less and less resources, demand is in short supply, prices are soaring, and supply and quality are not guaranteed; while mechanical sand materials are sufficient, urban construction waste (construction waste), gravel tailings, scraps, stone chips, Stone residue, mine tailings, etc. can be used as mechanical sand raw materials.

2) Price aspect

The price of machine-made sand varies from place to place, but it is basically much cheaper than river sand. Compared with river sand, the mechanism sand is about 20 yuan cheaper per ton. In addition, the profit of the mechanism sand is quite considerable, calculated on the scale of 2,000 tons per day and calculated according to the current market price. The estimated gross profit per month is more than 1 million yuan.

3) Environmental aspects

The traditional mechanism sand production will bring environmental problems such as dust pollution. However, with the continuous improvement of the sand making process, the production now adopts a fully enclosed structure, and each machine has a water spray setting, the dust does not overflow, and the environment is environmentally friendly. The dry process does not require water washing and does not cause problems such as sewage, sludge, and dust.

4) Adhesion and life

The graininess of machine-made sand is often used for cement bonding and other structural bonding, and it tends to have better adhesion, more compression resistance and longer service life.

4. What are the main advantages of the dry process?

1) The produced mechanism sand has a low moisture content, generally less than 2%, and the commercial mixed dry mortar can be used directly.

2) The content of stone powder in the finished sand can be adjusted and controlled, and centralized recycling can be comprehensively utilized to reduce dust emissions.

3) There is little or no water in the production process, saving water resources and protecting the environment.

4) Easy to centralize operation control and realize automatic management.

5) It can be continuously produced throughout the year without being affected by drought and cold seasons.

5. Why is the wet production process less and less used?

1) Consumption of a large amount of water, 1t sand and stone requires water consumption of 2-3.5m.

2) The product has high sand water content, must be dehydrated, and must be re-dried for dry mixing.

3) The product sand fineness modulus is coarse and the sand production is low.

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4) Produce a large amount of muddy powder sewage, pollute the environment, and the stone powder is not easy to recycle.

5) There are many types of infrastructure investment and equipment, and the production cost of mechanism sand is high.

6) It cannot be produced normally in dry or rainy areas or during the icing season.

6. What are the characteristics of the semi-dry sand making process?

Answer: The semi-dry production process is relatively wet production process. The biggest feature is that the mud and stone powder on the surface of the sand-making raw material are washed away with water. Some or all of the finished sand is no longer washed with water. Therefore, the water consumption is relatively small, and the stone powder in the finished sand is used. The amount of loss is small and the moisture content is low. However, this sandstone production process requires more water resources, and the sewage treatment equipment still needs to be equipped, but the specifications are much smaller. The investment cost is less than the wet method, more than the dry method, the finished sandstone powder content is between the two, and the running cost is also between the two.

7. What is the mechanism sand methylene blue (MB) value?

Answer: It is used to determine whether the particle size of the mechanical sand is less than 0.075mm. The content of the particles is mainly soil or the same as the chemical composition of the processed parent rock. The methane blue value of the mechanism sand requires MB &#; 1.4, and it should be controlled below 1.0.

8. Why do you want to humidify the finished sand?

Answer: In the mechanism sand dry production process, the wet sand mixing treatment of the finished machine mechanism can make the water content of the mechanism sandstone reach the saturated surface dry state, which is conducive to the control of the subsequent concrete mixing water consumption, and can reduce the segregation during transportation. And dust.

9. Why is the fineness modulus of the mechanism sand unstable?

Answer: During the production process, the lithology, water content and gradation of the feed are easy to change, and the screening process will also cause problems such as plugging and damage. The efficiency of the crushing and dust removal equipment and the parameters are also unstable, which easily leads to the mechanism sand fineness mode. The number is unstable.

10. Can the production mechanism sand use waste concrete and masonry?

Answer: Waste concrete, masonry and industrial waste residue are processed through special equipment such as sorting, cleaning, crushing and sieving to produce machine-made sand. However, the current industry is mainly used to produce recycled coarse aggregate.

11. What is the basis for the artificial sandstone production process?

Answer: The basis of the dry, wet and semi-dry artificial sandstone production process:

1) First decide on the location and water resources of the mechanism sand and gravel system, the cleanliness of raw materials, and the specific requirements for aggregate, mechanical sandstone content and fineness modulus. If the original conditions permit, the dry process is preferred, followed by the semi-dry process, and finally the wet process.

2) Considering the equipment input, the size of the floor, the difficulty of production management, and the processing cost of the mechanism sand and gravel, it is also a priority to consider the dry method, the second half dry method, and finally the wet method.

12. How to sample the mechanism sand?

Answer: The general method of mechanical sand sampling is:

1) When sampling on the pile, the sampling points should be evenly distributed. Before sampling, the surface of the sampling site is removed, and then 8 parts of sand are roughly taken from different parts to form a group of samples.

2) When sampling from the belt conveyor, the applicator picks up four equal portions of sand at the discharge end of the belt conveyor to form a group of samples.

3) When sampling from trains, cars, and cargo ships, extract approximately 8 equal amounts of sand from different parts and depths to form a group of samples.

13. What are the main methods for detecting the content of sand and gravel?

Answer: The mechanical stone powder content generally has two test methods: water washing method and dry sieve method. Representatively, it is American ASTMC136 or AASHTOT27, suitable for dry screening, ASTMC117 or AASHTOT11, suitable for water sieve. However, China has always used cement dry aggregate or asphalt pavement aggregates, and all of them use the dry sieve method directly. The 0.075mm sieve throughput is determined without water washing, so the accuracy is poor. The dry screening method is mainly applied to aggregates for cement concrete, and is also comprehensively evaluated in combination with the detection results of methylene blue values.

14. What are the main methods of stone powder separation?

Answer: From the development of industrial process equipment: At present, the methods for removing excess stone powder in undisturbed sand are mainly water washing hydraulic classification method, high frequency sieve mechanical screening method and powder selection and dust removal wind classification method.

15. How to adjust the gradation of the mechanism sand particle grading index?

Answer: The mechanism sand particle grading can be achieved by adjusting the feed grading, feed amount, crusher speed, screen size and so on.

16. What factors affect the mechanism sand shape?

Answer: The factors affecting the sand shape of the mechanism are:

1) Source rock lithology, such as developmental joints, is not conducive to obtaining better grain shape.

2) Type of crushing equipment, impact crusher has good forming effect.

3) Screen type, such as square hole, is better for grain shape control.

17. Why do you want to "break through the grinding, more broken and less grinding"?

Answer: Because the energy utilization of the crushing is higher than that of the grinding, more grinding and less grinding is conducive to saving energy, but it can not be completely broken, because the energy utilization of the two materials changes inversely with the particle size of the material.

18. What are the characteristics of the impact of breaking the stone and stone?

Answer: "Shida Stone" is suitable for medium-hard and abrasive materials, such as basalt. Under the working condition of &#;stone-rock&#;, the finished product has better grain size and slightly more powder. "Stone iron" is suitable for materials with low abrasiveness below medium hardness, such as limestone. Under the working condition of &#;stone hitting iron&#;, the crushing efficiency is high, the wear cost of the peripheral guard plate is high, and the finished product shape is slightly poor. The most serious wear of &#;stone hitting iron&#; should be the anvil, so its structural design and casting process are also important factors affecting the efficiency of the sand making machine. In addition, "stone stone" is suitable for shaping, and "stone iron" is suitable for sand making.

19. Why does the impact break (sand machine) use a double motor?

Answer: The use of dual motors has two main functions:

1) The dual motor guarantees the balanced force of the spindle.

2) Guaranteed speed, energy will be lost during transmission, and the dual motor guarantees high power and ensures the speed.

20. How to solve the problem that the working current deviation is large?

Answer: In a double-drive device, the phenomenon that one motor has a lower current than the other is called an inert reaction, and the deviation requirement should not be greater than 10%. Generally, the transmission belt tension is adjusted and made equal, the terminal cleaning degree is checked, and the soft start is checked. Problems and other solutions.

21. Why is the impeller rotor to be statically balanced?

Answer: The impeller rotor does not perform proper static balance correction. The rotor imbalance is large. The centrifugal force generated during the operation will cause abnormal vibration and failure of the equipment, abnormal rotor wear and excessive noise. According to industry standards, the impeller rotor balance of the impact sand making machine is G16.

22. What are the basic steps for sand balancing?

Answer: After replacing the wear parts of the impeller rotor of the impact sand making machine, the basic steps of correcting the static balance of the impeller rotor are:

1) Clean the sand and gravel, old worn parts, sundries, etc. on the rotor and accessories, and confirm that they can continue to be used.

2) Reinstall the wear parts and install the rotor on the balance tool.

3) Determine the unbalanced weight and position.

4) Review the balanced rotor balance.

23. Factors affecting the efficiency of the impact sand making machine?

Answer: 1) Characteristics of raw materials. The material has low hardness and strength, good fractureability and high sand making efficiency.

2) The effect of the moisture content of the broken material. Higher water content will reduce the amount of sand produced.

3) The amount of feed. Generally speaking, the larger the amount of feed, the better the crushing effect, but there is an extreme point.

4) The speed of the impeller. Generally, the higher the speed, the better the crushing efficiency.

24. Why does the impact sandblaster vibrate when it starts running?

Answer: Because the uniform lining does not form a balance in the rotor when starting the operation, it is usually necessary to enter several fine materials at the beginning. If it starts, the coarse material will continue to vibrate for several hours until the rotor is formed. Uniform lining.

25. What type of vibrating screen is currently used for mechanical sand screening?

Answer: The screening equipment mainly used for sand and gravel production is: rod sieve, cylindrical sieve, circular vibrating sieve, linear vibrating sieve, high frequency sieve and probability sieve. Among them, the bar sieve is mainly used for the soil removal process. It is more common to use a circular vibrating screen and a linear vibrating screen.

26. What factors can cause screen plugging?

Answer: 1) Sand and gravel particles containing a large number of critical separation points in sand and gravel.

2) There are many flake materials in the sand and gravel material; due to the rock breakage or the sand and gravel itself, there are more flakes in the gravel material, and the flake materials in the screening cannot pass through the sieve.

3) The amount of mud in the sand and gravel material is large.

4) The water content in the sand and gravel material is relatively high.

27. What is the main reason why the screen is easily damaged?

Answer: The main reasons why the screen is easily damaged are:

1) The quality or material of the screen is unqualified.

2) The screen is not sufficiently tensioned to cause the screen to vibrate, usually breaking or damaging along the edge of the screen or the edge of the bead.

3) The vibration amplitude of the sieve is too small, causing the sand particles to accumulate on the screen and quickly damage the screen.

28. What is the relationship between fineness modulus and screen size?

Answer: The current general requirement for the fineness modulus of the mechanism sand is 2.6-3.0. It is generally recommended to use a screen size of 3.0mm or 3.5mm. If the stone powder content is high, consider using a 2.8mm screen; if it reaches about 2.3, consider a long screen, such as 1.7X5 or 1.9X5. Screen type is generally selected as a square hole screen, which is very advantageous for grain shape control; round hole net or long screen is used as little as possible; it is also necessary to monitor whether the screen is damaged or not and affect the fineness modulus.

29. What are the wearing parts of the impact sand making machine?

Answer: Standard consumables are: cylindrical roller bearings, deep groove ball bearings, thrust ball bearings, expansion sleeves, conveyor belts, oil seals, O-rings.

Non-standard wearing parts are: upper bushing, lower bushing (feeding bucket lifting part), shock absorbing rubber, stern wheel retaining ring, upper jaw lower runner plate, impact block, split cone, wear plate, throw Material head, blanking ring, feeding tube, upper armor striking guard, hopper lining ring, distribution tray, bulk tray (bulk cone), peripheral shield.

30. Why is the wheel sand washing machine generally used in wet production?

Answer: The wheel type sand washing machine has a simple structure, the failure rate is much lower than that of the spiral sand washing machine, and in the washing process, the fine grain sand and the stone powder are less lost, and the mechanism of the produced sand is better, the fineness modulus Easy to control, the quality is more stable.

31. Mechanism sand apparent density loose bulk density requirements?

Answer: The apparent density of the mechanism sand is not less than kg/m3; the loose bulk density is not less than kg/m3; the void ratio is not more than 44%.

32. What kinds of rocks are natural rocks divided into?

A: The natural rock is divided into three categories, namely:

The first type is magmatic rock (igneous rock), which is formed by eruption of magma and generally has a hard and uniform texture.

The second type is sedimentary rock (sedimentary rock), which is formed by a series of geological processes such as weathering, transportation, sedimentation and diagenesis. It is characterized by a generally layered distribution structure with similar properties in the same period.

The third type is metamorphic rock, which is formed on the basis of existing rock and undergoes metamorphism. It has the characteristics of both rock and its own characteristics.

33. Which rocks can be used for mechanical sandstone production?

Answer: The sand-making materials of the mechanism sandstone (crushed stone) are usually made of granite, basalt, river pebble, pebbles, andesite, rhyolite, diabase, diorite, sandstone, limestone and so on. The mechanical sands produced by them are distinguished by the type of rock, and there are also differences in strength and use.

Sand making production machine---Popular 6 kinds crusher

33 questions about mechanism sand