Benefits Of Vibrating Screens

Vibrating screen is one of the main types of industrial screening equipment. There are several mechanical screening solutions in the solid waste management, recycling, and polymerization industries; however, vibrating screens provide many unique advantages that make them the first choice for various industrial applications.

Read on to learn more about how vibrating screens work and their benefits over other common types of screening equipment.

What is a vibrating screen?

As the name implies, the design of the vibrating screen is based on the principle of transmitting vibration to the screening surface in order to separate and classify different particles according to their size.

Regardless of the design of the machine, the principle is the same: vibration breaks the surface tension between particles, thereby forcing them to separate. Particles that are too small, so-called "fines", pass through the screen. At the same time, oversized particles are carried through the screen surface. This is an important application in many industries, especially mineral processing.

Due to its unique design features, the vibrating screen has special advantages over other material processing equipment, including:

Improve processing and material quality

Low operating cost

Reduce maintenance and downtime

High screening efficiency

Vibrating screen

We will explain these benefits in further detail below.

Improve processing and material quality

Although certain screening equipment is more suitable for different materials, vibrating screens have many advantages in the processing of aggregates and mining materials. The equipment of the vibrating screen is particularly sophisticated to meet the fineness requirements of these industries. Their design can generate the force required to separate large particles from fines, thereby making the product easier to recycle—even when processing materials that require significantly smaller particle size separation. This leads to higher yields and an improvement in the overall quality of the final product.

Low operating cost

The vibrating screen is famous for its sturdy design. Because the working principle is relatively simple, and the design of modern machines is streamlined, vibrating screens are generally bought less than other types of screens. This resulted in lower upfront investment.

In addition, compared with more complex machinery, the vibrating screen can run with lower energy consumption, thereby saving the company's continuous operating costs. Finally, because the high-frequency vibration is directly transmitted to the screen surface, only the media on the screen surface needs to be replaced regularly. This can help save the maintenance and repair costs that other screening equipment often constitutes.

Reduce maintenance and downtime

Maintenance and downtime caused by repairs or equipment failures can result in significant losses in productivity and profits. Many types of screens have experienced severe wear, especially in demanding applications such as aggregate processing. However, the vibrating screen offers the advantage of less maintenance and downtime. This is the result of their design, the center of which is to only transmit the exciting force to the screening surface.

In addition, high-quality vibrating screening equipment is designed and manufactured to minimize the impact of other parts of the machine by the exciting force. In more complex designs, the structure of the machine allows sufficient absorption and suppression of vibrations other than the screen media. This results in fewer moving parts and less wear, further reducing downtime and maintenance.

High screening efficiency

Although there are various screening equipment on the market, when a simple solution is needed that can handle higher feed flow rates, vibrating screens provide an ideal choice. In fact, the vibrating screen has the highest working efficiency and the flow rate is always higher. For other types of screening equipment, the same material throughput may result in blind screening or material backflow, requiring a slower feed.

We are vibrating screen suppliers. Please feel free to contact us if you are interested in our products.

How To Choose The Right Pump For Coal Washer?

The main reasons for coal washing are to reduce the transportation cost, reduce the ash content to improve the efficiency of power plant and reduce the generation of harmful gases to protect the environment. In addition, a large number of power plant ash has caused a major disposal problem, which can be better replaced by landfill excavation area, in the mine cleaning and disposal of washing waste.

1>What is coal washing?

Coal from mines is a complex mixture of materials with various physical properties. In addition to the coal itself, the mixture contains rocks, sand and various minerals. Therefore, coal must be cleaned before it is sold to consumers. Coal washing is accomplished through one of two main processes, namely density separation or froth flotation. Both processes depend on the fact that the particles from which the coal samples are made have different densities. 

2>The crushing operations in the coal preparation plant mainly have the following requirements:

1) Adapt to the requirements of the selected particles; the coal particles that can be processed by the selected machinery have a certain range, and the large pieces exceeding this range must be crushed before being washed; 2) Some coals are quickly caught by coal and vermiculite. Yancoal, in order to select clean coal from it, needs to be broken into smaller particles to separate coal from tantalum coal; 3) to meet the user’s particle requirements and to quickly crush the selected product or coal to certain particle size. The material is crushed mainly by mechanical methods, and there are several main methods such as crushing, chopping, breaking, crushing and grinding.

3>Choose the right pump for coal washing plant

In the process of mining coal, up to 50% of the extracted material may be waste. This stone material must be removed from the coal before processing. Coal processing plants clean coal while crushing and grading coal. An important factor in the operation of a coal processing plant is to provide water for the coal preparation plant and then remove the abrasive waste water. The resulting waste water is still muddy and abrasive mud, full of pulverized coal, coal balls and dirt. This waste water needs a mud pump to move it.

It is very important to use the professional mud pump, because the mud has strong abrasiveness, which will soon wear the ordinary pump. The mud pump has a replaceable lining, all wear parts are made of wear-resistant materials, usually rubber or high chromium, but elastomers, stainless steel and ceramics can also be used. Mud pumps have wider tolerances to allow solids to pass through, which makes them less efficient, but more durable than pumps, and their casings and bearings are stronger, so these pumps are larger and heavier, requiring more horsepower to operate.

The centrifugal horizontal slurry pump is the most common type, while the shaft of the vertical slurry pump is located in the water, which is usually used to pump water out of the sump. For low flow applications, cam pumps or peristaltic pumps can be used to deliver mud. Care must be taken when choosing more efficient pumps; Sometimes the effect of wear can quickly weaken this efficiency, resulting in a higher life cost than a pump with a lower apparent efficiency.

ZGB series slurry pump: modern CAD design, excellent hydraulic performance, high efficiency, low wear rate, large flow rate, multi - span, multi - stage series, mainly used for power, metallurgy, mining conveying corrosive slurry,Especially used in power plant ash.

ZJ series slagging pump: is a new generation of high-efficiency single-stage, single-suction, centrifugal slagging pump with corrosive slurry containing solid particles.Overall performance of the domestic leading level, with good wear resistance, corrosion resistance.

AH series slurry pump is horizontal, vertical open type, double pump shell structure. Wide performance, good cavitation, long service life, high operating efficiency, mainly suitable for conveying strong corrosion, high concentration of slag slurry or low density, low corrosion of high lift slurry. 

The basic factors to be considered when selecting a pump include: What is the required head and velocity? How far does the water need to be pumped? What kind of dirty water is actually pumped - turbid or containing heavy solids? Friction loss due to piping configuration should also be considered.

Fengwang supplies portable slurry pump series products, and has a professional technical service team with coal preparation equipment. With many years of operating experience, we are familiar with the international market. Welcome to contact us.