sand sieving machine

Types of sand sieving machines

A sand sieving machine is a device that helps in separating coarse materials like sand. It works on a simple principle in which a vibrating screen or mesh is used to separate out the larger particles by letting the smaller particles fall through. This process is known as screening or sieving, and it can be done in many different ways, with some machines using vibration, air flow, running water, or sound to make it happen. The use of sand sieving machines is critical in construction, foundry and various industrial applications.

Based on the movement mechanism of the screening mesh, some common types of sand sieving machines include:

• Spring-Based Vibration Machine:In this type of vibrating sand sieve, the vibration is created by means of springs. The vibrating mesh is mounted on springs that are used to move the sieving mesh up and down or in circular motions. The movement displaces the sand on the mesh so the finer particles fall under to be collected, while the larger pieces are left on top and ejected from the mesh.
• Motorized Sand Sieve:The motorized sieve uses electrical motors for vibration. Usually mounted horizontally or at an incline, the motor turns the chute which then moves the material over the mesh where sieving takes place. A benefit of motorized sand sieves is low maintenance and easy operation.
• Rotary Sand Sieve:The rotary sand sieve machine, also called a sieving classifier, is a machine that classifies material based on particle size. When the sand particles move over its rotating drum, they get separated according to their sizes. Usually, smaller particles fall through first, and larger ones are left on the drum's surface to be ejected out later. Rotary Sand Sieve Machines are typically used for large volumes of sand.
• Wet Roller Sand Sieve:This type of sand sieve machine uses water to separate sand from other materials. Especially useful where organic matter like plant roots is present, the machine uses water pressure and high friction between the rollers to separate foreign materials from sand.

In addition to these types, several other sand sieving machines are being used at industrial scales, including linear vibrating screens, de-watering screens, oscillating screens, and horizontal vibrating screens. Their applications mostly include the mining, oil and gas, and water treatment industries.

Among all these types, the linear vibrating screen is the most popular sand sieve machine used in industries. According to a report by Market Insight Reports, the linear vibrating screen machine holds a major share of the vibrating screen market, and its demand is expected to continue to grow in the coming years.

Specification and Maintenance

• Machine Power: The power of a sand sieve machine is usually given in kilowatts (kW) or horsepower (HP). It represents the machine's motor power. Different applications may require different powers to ensure sieving efficiency and stability.
• Machine Weight: The weight of a sand sieve machine is usually described in tons (tons) or kilograms (kg). The weight of the machine itself determines the stability and portability of the machine, which is important for sieving heavy or large volumes of materials.
• Machine Dimension: The dimensions of a sand sieve machine include length, width, and height. The dimension of the machine determines the area it occupies, as well as the size and shape of the sand sieve screen. Different dimension machines suit different scale and space requirements.

Maintenance of sand sieving machines in the construction industry is crucial to ensuring their efficiency, reliability, and durability. It also helps to prevent breakdowns, minimize downtime, and ensure the quality of the sieved materials. Here are the maintenance techniques:

• Regular cleaning: Materials residues, dust, and dirt, etc., should be cleaned up in time after sieving, to prevent clogging of screen holes and impairment of machine performance. Meanwhile, surfaces of the machine, including screens, vibrating motors, frame, etc., should be wiped clean, keeping the machine clean and hygienic.
• Lubrication maintenance: Regular lubrication should be carried out on sand sieving machines, especially motors and bearings. Lubricants should be added to ensure their smooth operation, reduce friction and abrasion, and extend their service life.
• Regular inspection: Regular inspections should be conducted to check if any components are loose, damaged, or abraded. Necessary adjustments, repairs, or replacements should be made to ensure the machine's stability and safety.
• Maintenance of screens: The screens are the key components of sand sieving machines. Their maintenance is crucial for the quality and efficiency of sieving. Screens should be cleaned and unclogged regularly to ensure the smoothness of screen holes. Meanwhile, the screens should be adjusted appropriately to maintain the right tension and flatness. If there is any damage or abrasion on the screens, they should be replaced in time to ensure sieving accuracy and efficiency.

Usage Scenarios of Sand Sieving Machine

Sand sieving machines are critical in the construction industry and are often used in various scenarios.

• Foundations and Groundwork

When excavating to lay the foundation of a building or undertake complex groundwork, it is essential to get rid of any visual organic material such as roots and debris. Using a sand sieving machine can help identify this material and remove it to reveal a clean surface ready for construction.

• Landscaping Projects

A professional landscaper can use a sand sieving machine to remove unwanted large stones and debris before spreading fresh topsoil. This can ultimately result in a smooth soil surface and healthy soil free of obstacles before laying new turf.

• Recreational Grounds and Sandpits

Sieving sand frequently in recreational ground and sandpits is critical, as it can help uncover hazards such as glass and broken sharp objects. Using a sand sieving machine can help create a safer area, especially for children playing in these grounds and pits.

• Drainage Clearance

Sand sieving machines can be used to prevent drainage pipes and culverts from being clogged with sand and silt. Sifting through the sand can help the drainage system remain unblocked and functioning well. It can also help in quickly resolving any silt build-up before it becomes a nuisance and major problem that requires complicated professional intervention to fix.

• Gravel and Aggregate Production

Quarries and gravel production facilities can use the sand sieving machine to separate desirable gravel and aggregates. These materials can then be used in producing concrete, drainage systems, and base materials for road construction.

• Soil Restoration

In the mining industry, the topsoil is often removed when minerals are excavated. This can result in an undesirable landscape. Using a sand sieving machine can help when soil restoration occurs in areas where mining has taken place. By sifting through the topsoil, the valuable nutrients can be extracted, and the soil profile can be restored before any natural vegetation regrows.

• Construction and Renovation Projects

When renovating landscape features or carrying out construction and excavation projects, a sand sieving machine can be used to process soil. This can help eliminate excess subsoil, improving drainage and soil structure where new plant or turf growth is desired.

How to choose a sand sieving machine

When looking to buy a sand screening machine for sale, it is essential first to consider the machine's application. There are different types of sieving machines, each with distinct abilities and purposes. Consider the type of material one will be screening and the final product one's desire to obtain.

Once the purpose of the screening machine has been established, it is easy to choose a machine that satisfies that need. For example, those working in industries that screen large volumes of materials may require an elliptical sieve machine because it offers high throughput. On the other hand, individuals work with fine, dry, and powdered materials may consider a circular sieve for screening.

The material used to build the screening machine helps to decide which machine to choose. Sand sieving machines made of stainless steel are resistant to rust and corrosion and are easy to clean. On the other hand, screening machines made of carbon steel offer superior strength and durability. Since carbon steel is an alloy of iron and steel, it is also known to have a long lifespan.

The choice of a screening machine may also be determined by the machine's mesh size. Different machines offer different mesh sizes. Machines with larger mesh sizes will filter out bulkier particles and quickly pass materials. Those looking for fast production rates may choose machines with larger mesh sizes. However, if precision is needed, choose machines with smaller mesh sizes, as they can filter out finer particles but at a slower rate.

Where one places the screening machine in a production line will also help to determine what kind of machine to buy. Vertical sieving machines are ideal for saving space because of their vertical orientation. They can easily fit in tight spaces or be stacked over other units. Furthermore, due to their space-saving design, they require little production floor space, thus, reducing operating costs.

The feed rate the sand sifting machine offers will also influence the screening machine chosen. Industries looking to screen large volumes of sand quickly should opt for the vibrating screening machine, which offers a fast feed rate. Because of its fast feed rate, the vibrating machine improves efficiency and output in industries.

Sand sieving machine FAQ

Q1: How much throughput should a sand sieving machine have?

A1: It depends on the users' needs. The typical throughput of industrial sand sieving is between 1 and 5 tons per hour. But it can be higher if the machine is bigger or if the sand is processed in a different way. Some sand sieving machines can process up to 10 tons of sand per hour.

Q2: How much power does a sand sieving machine use?

A2: The power usage of a sand sieving machine is about 1kw. Smaller machines can use as little as 0.5kw, and larger industrial machines can use up to 10kw. The actual power will depend on the size of the machine, the type of sand, and the method of sieving the sand.

Q3: What parts of the sand sieving machine need regular maintenance?

A3: The rotating parts of the sand sieving machine need regular maintenance. This includes the bearings, gearbox, and drive motor. Routine checks for lubrication, tightness of the belts, and the condition of the v-belts and chains are necessary to reduce wear and tear.

Q4: Can the sand sieving machine be mobile?

A4: Yes, there are sand sieving machines that can be mobile or transportable. These types of machines have wheels, a tow hitch, or a compact design for easy movement. They can be moved from one location to another, rather than the only kind of sand sieving machine that is stationary.