How does NIR Optical Sorting System Work?

NIR Optical Sorting is one of the most rapidly developing high technologies in the last 20 years. This technique is convenient, fast, efficient, accurate, and less expensive to analyze samples, does not destroy the sample, does not consume chemical reagents, does not pollute the environment, etc. Therefore, this technique is more and more popular.

 

What is near-infrared light?

Near-infrared light is light with wavelengths between 800 and 2500 nm. In the electromagnetic spectrum, the near-infrared region is between visible light and infrared light. A person cannot see near-infrared light but can feel it as heat. The advantage of NIR light is that relatively little light is absorbed, so samples can be analyzed directly without dilution or another pretreatment.

 

What is near-infrared spectroscopy?

Near-infrared spectroscopy is a very useful analytical technique because different molecules absorb and reflect near-infrared light to different degrees. When a molecule absorbs energy from NIR light, this energy is converted into kinetic energy. As a result, the atoms within the molecule move faster, bending, stretching or rotating around each other (see figure below). The more light a molecule absorbs, the less light it reflects. The near-infrared part of the spectrum is mainly absorbed by the bonds between hydrogen, carbon, oxygen, nitrogen, and sulfur. These chemical elements are present in water and compounds such as clay humus and organic matter. In addition, trace elements are not visible in the NIR spectrum because they do not have such bonds.

 

Working principle of near-infrared spectroscopy

Various hydrogen-containing groups in the molecules of organic and some inorganic substances are excited to resonate when irradiated by near-infrared light, and at the same time absorb a portion of the light energy. Measuring their absorption of light gives an extremely complex infrared spectrum, which represents the characteristics of the substance under test. Different substances have a rich absorption spectrum in the near-infrared region, and each component has a specific absorption characteristic. Therefore, NIR can reflect information about the composition and structure of a substance and thus can be used as an effective vehicle for obtaining information.

The measurement process of the NIR analysis technique is divided into two parts: (1) calibration and prediction (as shown in Fig. 1), (1) calibration: (i) select the calibration sample set, (ii) measure the spectral data and physicochemical basic data of the calibration sample set separately, (iii) take the spectral data and basic data, and build a calibration model with appropriate chemometric methods; (2) prediction: collect the spectral data of the unknown sample, correspond to the calibration model, and calculate the sample components of the sample. It can be seen that establishing an accurate calibration model is the most important thing in the application of NIR spectroscopy.

 

Qunfeng Optical Recycling Sorting Machine

This optical Recycling Sorting Machine is a new recycling technology design and made by Peaks-eco. We hope to cooperate with you for a long time.

How Often Should Oil Be Changed in a Vertical Baler?

Vertical balers are a cornerstone of waste management in various industries, helping to efficiently compress recyclable materials into compact bales. These machines operate under tremendous pressure, relying heavily on hydraulic systems to get the job done. To ensure their longevity and optimal performance, one critical maintenance task often overlooked is changing the hydraulic oil. In this article, we will explore the importance of regular oil changes in vertical balers and provide guidance on how often this should be done.

The Hydraulic Oil: A Vital Component

Vertical balers use hydraulic systems to compress materials into tightly packed bales. This process involves the use of hydraulic fluid or oil, which plays a crucial role in providing the necessary force and lubrication for the machine's moving parts. Over time, this oil can become contaminated with debris, moisture, and wear particles, leading to reduced efficiency and potential damage to the baler.

Frequency of Oil Changes

Determining how often to change the hydraulic oil in a vertical baler depends on several factors:

Usage Frequency: The more frequently the baler is used, the faster the hydraulic oil will degrade. Heavy usage may necessitate more frequent oil changes.

Environmental Conditions: Balers located in harsh environments with high levels of dust or moisture may require more frequent oil changes to prevent contamination.

Oil Quality: The quality of the hydraulic oil used can impact its longevity. High-quality oil may last longer and require less frequent changes.

Manufacturer Recommendations: Always refer to the manufacturer's guidelines for specific maintenance recommendations.

General Guidelines

While the frequency of oil changes can vary, a good rule of thumb is to change the hydraulic oil in a vertical baler every 1,000 to 2,000 operating hours or annually, whichever comes first. However, it's essential to monitor the oil's condition regularly and adjust the maintenance schedule accordingly. Signs that it's time for an oil change include:

Increased Noise: Unusual noises during baler operation can indicate friction caused by contaminated or deteriorating hydraulic oil.

Sluggish Performance: If the baler's performance becomes sluggish or less efficient, it may be a sign that the hydraulic system is not operating optimally due to degraded oil.

Visible Contamination: If you notice visible particles, debris, or discoloration in the hydraulic oil, it's a clear sign that a change is necessary.

Leaks or Seals Damage: Frequent hydraulic leaks or damage to seals can be caused by deteriorating oil, and addressing the root issue often involves changing the oil.

The Oil Change Process

Changing the hydraulic oil in a vertical baler should be conducted following a systematic procedure to ensure thorough maintenance:

Prepare the Baler: Ensure the baler is in a safe and stationary position before starting any maintenance work.

Drain the Old Oil: Remove the drain plug or access point for the hydraulic oil reservoir and allow the old oil to drain completely into an appropriate container for disposal.

Replace the Filter: While changing the oil, it's a good practice to replace the hydraulic filter to ensure efficient filtration of new oil.

Fill with New Oil: Refill the hydraulic oil reservoir with the appropriate type and quantity of fresh hydraulic oil recommended by the manufacturer.

Inspect for Leaks: After the oil change, inspect the hydraulic system for any leaks or abnormalities.

Test the Baler: Run a few cycles of the baler to ensure that it operates smoothly and efficiently.

Conclusion

Regular oil changes are essential for maintaining the optimal performance and longevity of vertical balers. By following manufacturer recommendations and monitoring the condition of the hydraulic oil, businesses can avoid costly repairs and downtime associated with neglected maintenance.

Remember, the frequency of oil changes may vary depending on factors like usage, environmental conditions, and oil quality. It's always advisable to consult the manufacturer's guidelines for specific maintenance intervals and procedures. By prioritizing proper maintenance, businesses can ensure that their vertical balers continue to operate efficiently, contributing to a more sustainable waste management process.

For any further questions about maintaining your vertical baler or sourcing high-quality hydraulic oil, don't hesitate to contact us. We are your reliable supplier for all your waste management equipment needs.

How does Eddy Current Separator Work?

The design of the Eddy Current Separator permanently changed the landscape of metal recycling by making it much easier and more efficient to separate and recover highly valuable non-ferrous metals like copper and aluminum. The first Eddy Current Separator was developed by the Bird Group, a UK-based metal recycler, in 1981. The development of the Eddy Current Separator was so significant that it resulted in the Bird Group being presented with the Prince of Wales’ Award for Technology and Innovation and the Tomorrow’s World Award for Technological Development and Innovation. In the years that followed its initial invention, Eddy Current Separator technology has continued to grow and evolve.

 

How does it work?

An Eddy Current Separator works by utilizing high-strength magnetic forces that repel and eject non-ferrous metals. Examples of materials separated by an Eddy Current Separator include aluminum soda cans, aluminum foils in discarded packaging, and different sizes of scrap metal and wire from ASR and ICW automotive, appliance, and electronic recycling applications.

 

Eccentric Rotors

An Eddy Current Separator utilizing an eccentric magnetic rotor design mounts a smaller rotor in the top quadrant of the non-metallic shell. In this design, attracted magnetic material will move through a diminishing magnetic field until it ultimately reaches a point where it falls away from the belt. This ferrous metal then often discharges into the non-metallic fraction. But, even in this scenario, upstream magnetic separation is critical to minimize the amount of ferrous material coming in contact with the Eddy Current field.

 

Concentric Rotors

An Eddy Current Separator using a concentric magnetic rotor design has a magnetic rotor that maintains the same gap between the outer non-magnetic shell and the internal magnets throughout the entire circumference of the rotor. The high-strength magnetic rotor is constructed with powerful neodymium rare earth magnets that hold ferrous metal tightly in place—at the expense of making it difficult to discharge from the belt. Additionally, because of the high-speed rotating magnetic field, a ferrous metal that cannot be discharged instead remains on top of the belt at the bottom point of the magnetic rotor. Because the magnetic field is constantly rotating and changing, the metal vibrates and becomes very hot. As a result, once the conveyor belt stops, this red hot ferrous metal can easily burn a hole through the belt and onto the non-metallic shell’s surface. Over time, continuous wear resulting from ferrous metal will lead to deterioration and holes on the non-metallic shell’s surface. Then, attracted ferrous metals will pass through these holes and attach to the rotor magnets, leading to the catastrophic failure of equipment. So, in these scenarios, it is important to have maximum magnetic separation of the material upstream before the stream lands on the Eddy Current belt.

 

We are an Eddy Current Separator supplier, please contact us if you need them.

How does Trommel Screen Work?

People utilize screening tools to separate different qualities of products such as soil, gravel, mulch, and sand. These machines work fantastic when they are working with dry material, even if bits, as well as pieces, are big in size. A noteworthy weak point, nonetheless, is the problem that standard screeners have with wet products such as damp dirt, damp sand, and also garden compost. These substances often tend to glob together when they are wet, which decreases the effectiveness of the equipment. Furthermore, damp material can congest the equipment and also stay with the display. This can be difficult to displace and also will set you back a great deal of time. The good news is, trommel screen sifters are readily available to make these jobs a lot easier.

How do they work?

A trommel is a screen that is curved right into a cylinder. The maker rotates the cylindrical screen in order to arrange via the product as it is fed with. During this process, the wet material tumbles around. Air is added and the dirt, compost, or sand ends up being lighter as well as drier. The rolling activity also allows maximum call time with the screen so that the fine material makes it through quickly. A trommel screen can arrange with dry compounds rapidly as well, although it is designed with a wet product specifically in mind.

 

These sifters can be found in various sizes, however, generally, they are portable enough to be relocated by vehicle. This is very useful if you require to evaluate dirt or mulch in more than one location of a homestead or if you require to move the maker to a different place totally. Because of the materials that trommel screens focus on, they are especially popular with landscaping companies as well as digging deep into specialists. When points require to get done quickly, you can not rely on your product being completely dry sufficiently for a basic testing maker. Every handyman recognizes the value of bringing the ideal tool for the work. The larger the work, the more important the device.

 

What are they utilized for?

Cities can typically discover a lot of usages for evaluating makers. Trommel devices are particularly valuable since they can deal with a range of tasks with rate. A high-quality screener pays for itself swiftly when there are several tasks available. They are a beast that can tackle a lot of jobs, but make sure not to overfill the maker. With a trommel, extra material beyond the developed ability will only slow down points. The surface area of the screen is the limiting variable, so blocking the center of the rotary with more dirt or mulch will not complete anything. These makers are top-notch high quality, so it is important to keep in mind that they need to be permitted to operate at their set pace. Even if there is a great deal of labor to be done, the trommel will cut through it at a healthy speed, so let it run its course.

 

Finally Ideas

Like with many sturdy types of equipment, it is best to buy a trommel screen directly from a manufacturer. By far, this will certainly obtain you the best price. By cutting out the intermediary, you will certainly additionally avoid all the overhead prices of a different store and any salesperson commissions. You pay the freight expenses, but you would be indirectly paying for that anyway. The only issue with dealing straight with the supplier is that you require to do a little study. The good news is, the web has actually made this concern all but vanish. Manufacturers that market directly to customers have websites that discuss the information of their products and supply informative videos and also summaries. By contrasting different screeners and businesses, you can locate the finest quality devices at the most effective possible costs. If you are fairly good at doing internet searches, the whole process will certainly take less than an hr. If you require to look as well as arrange wet products, acquiring trommel equipment straight from the supplier is the means to go.

 

Qunfeng is a Trommel Screen supplier, please feel free to contact us if you need them.

Impact Crusher: All You Need to Know

 

What are the benefits of an impact crusher?

Impact crushers reduce mineral materials such as concrete, asphalt and natural rock in size to produce a valuable commodity product. A fast spinning rotor throws the material against a solid stationary impact wall. The striking and impacting causes the material to shatter into smaller pieces. The result is a very homogenous and cubical product leaving the crusher box.

• Versatility

Good for processing reinforced concrete, asphalt, cinder blocks, sand & gravel, soft rock, and hard rock.

• High Reduction Ratio

Ideal for producing a spec product without the need of a primary jaw crusher.

• Superior Material Compaction

Material produced by an impact crusher is easier to grade and compact making it perfect for base and subbase.

Types of Impactors

There are 2 main types impact crushers - horizontal shaft impact (HSI) crushers and vertical shaft impact (VSI) crushers.

• Horizontal Shaft Impactor (HSI)

The horizontal shaft impactors are the most common impactor type that can be used in recycling, primary and secondary crushing applications. This type impactor will take reasonable size pieces and produce small output material.

• Vertical Shaft Impactor (VSI)

Vertical shaft impactors are designed to process already small material even smaller and are therefore used in a tertiary crushing application (e.g. producing manufactured sand).

 

What are the main components?

The crusher box includes a rotor with hammers (also called blow bars). Depending on the rotor style you will have either 3 bars or 4 bars. Hammers are cast iron replaceable wear parts that are actually in contact with the material. They are designed to withstand the many impacts of the material. The impact wall (also called apron) has several crushing stages and is armoured by thick wear plates.

Once the hammer hits the big material entering the crusher box it is thrown against the wall and starts ricocheting between hammers, wall and other material particles. As soon as the material is small enough the fit in between the rotor and the lowest crushing stage of the impact wall it will leave the crusher box at the bottom.

 

What materials can you process?

Impact crushers is a versatile crusher that can be used to process natural rock and recycle materials alike. Many people claim that you can't process hard rock with an impact crusher. This is not entirely true because it depends on the breaking characteristics of the rock and the feed size.

• Concrete & asphalt recycling

Reinforced concrete, demolition material, asphalt millings, washout concrete, high PSI runway concrete, brick & masonry.

• Soft & medium hard rock

Every rock is different even if it is the same type of rock. There is soft limestone and there is hard limestone. Please consult a crushing expert to verify your application.

Slag, railroad ties, glass, ivory, and pre-stressed concrete is also possible but need closer attention. Please consult a crushing specialist.

 

What size material can you produce?

The beauty of impact crushers is their versatility in terms of input material and output size. There are many different designs out there but generally speaking impact crushers can produce material from 3" down. The smaller the input material the harder it gets to crush. The output gradation can be adjusted through various settings.

• Rotor Speed

The higher the speed the more fines are produced.

• Crusher Geometry

Altering the distance between the rotor and the impact wall influences gradation and overall output size.

• Hammer Setup

Common hammer setups are 2 high 2 low or 4 high hammers.

 

Qunfeng provides high-quality impact crusher. If you are interested in our producs, please contact us now!

Things About Waste Compression Machine

A lot of waste solution equipment manufacturer production machine of the significance of understanding is one-sided, wastepaper baling press enterprise can not completely no matter enough to their own interests, and thus damage the wastepaper baling press industry a good environment. Waste paper charter companies are members of a society, and their survival cannot and should not be based on social rejection. So in today's society of the trend of The Times, the behavior of the waste compression machine is not and can not be simply a reflection of their own purpose, and will give a negative impact on the environment of the whole society.

Waste compression machine solves the following technical problems:

(1) the binding wire is not cut completely

(2) uneven feeding leads to automatic binding stop

(3) incomplete package blocks will not produce complete package blocks in case of insufficient materials.

(4) the size and weight of each bag are different.

(5) too much feeding, and the feeding cylinder cannot reach the cylinder stroke

(6) the inaccuracy of the compression disc of the compressed oil cylinder leads to the problem of filling leakage blocking the compression chamber

Features:

Automatic control mode, safety interlock switch

Independently install the emergency stop button, which can be shut down at any time in any state to ensure waste compression system safety;

Guide groove balance is adopted to prevent tilting effectively.

Hook type automatic bag turning, safe and convenient;

Fast lock and release device, safe and efficient;

How to Clean the Eddy Current Separator?

With the progressive maturation of waste nonferrous metal classification as well as processing innovation in the last few years, eddy current separators have actually been embraced by consumers in the waste metal recycling industry as well as are made use of to arrange nonferrous metals in steel scraps: copper, aluminum, magnesium, zinc. Waiting on the purpose of recycling as well as re-smelting, it has very high economic as well as environmental management worth.

Important Machine Eddy Current Separator

In recycling process there are numbers of machinery is used. Among all the machinery eddy current separator is the most important machine which is used in recycling process.

Eddy current separator is a magnetic separator to separate the non-ferrous metal from the waste. Eddy current is used to effect the separation. In eddy current separator high-power magnets are used to remove non-ferrous metal which increases purity and quality of recycled materials without any material loss.

What Is Eddy Current?

Eddy currents are loops of electric current which is circulated in a conductor by changing the magnetic field in it. When the current flows through the conductor, an eddy current will produce its own magnetic field.

Eddy Current makes use of electromagnetic induction to detect, characterize surface and sub-surface flaws in conduction materials.

How Separation Is Done!!

Eddy current separator is a magnetic separator designed to separate non-ferrous metal from waste materials.

When materials fall down to the conveyor belt from roller or drum, the conveyor belt carries a thin layer of mixed waste and there is an eddy motor at the end of the conveyor belt. Conveyor belt separates non-ferrous metal which is thrown from the belt into the material bin due to the gravity. Eddy Current Separator removes non-ferrous metal from the waste in just one step.

Does An Eddy Current Separator Need To Be Cleaned?

Yes. Because the eddy current separator is mainly used to sort copper and aluminum from scrap metals, its working environment is usually harsh (dirty and dusty), and it is necessary to clean the eddy current separator after a period of use.

 

What are the cleaning steps of the eddy current magnetic separator?

1. First of all, what must be cleaned when cleaning the eddy current separator is the surface of the magnetic roller, because it is composed of strong magnets, and the surface field strength is relatively high. During the operation of the eddy current separator, iron powder rust and other magnetic materials in the air will be adsorbed on the surface. During long-term operation, it will heat under the force of the magnetic field and cause damage to the magnetic roller. Generally, during the handover of each shift, the surface of the magnetic roller should be observed for foreign objects such as iron powder and rust. If necessary, clean the surface with a high-pressure air gun or rag

 

2. The second step is to clean the foreign objects on the belt, because the conveyor belt is PVC or PU material, and sometimes it will be scratched by sharp objects, such as iron wire and metal sheet, which is easy to get into the belt And cause damage to the belt, workers should promptly remove foreign objects stuck on the surface of the belt when handing over shifts.

 

3. The third step is to clean the foreign objects on the baffle of the collection chamber. Due to the improper adjustment of the position of the baffle, it is easy to cause garbage to hang on the baffle for a long time and affect the sorting effect. The position of the baffle should be cleaned and adjusted in time.

 

4. Clean the control cabinet of the eddy current separator. The control system is an important electrical component of the sorting machine. When it is used in a dusty environment for a long time, it should be cleaned in time to prevent the dust from entering the internal gaps of the electronic components. After being damp, it will cause electricity and so on. Air gun or other large air volume equipment to clean up.

 

5. The shell of the separator generally has metal and garbage after long-term use. It is necessary for workers to clean up the garbages and metals scattered on the shell of the equipment in time to prevent them from falling into the gap and damaging the machine.

Know about the Best Eddy Current Separator supplier

Dezhou Qunfeng Machinery Manufacturing Group, located in the east of Ningjin economic development area of Dezhou Shandong, is a high-tech enterprise dedicated to manufacturing and operating environmental sanitation equipment, weighing products, waste sorting equipment, and steel structure. All of our environmental products have passed IS09001 certification in 2006, ISO14001-2004 certification and ISO18000 occupation health safety management system. Besides, we have graded 5 stars in the Chinese post-sales service certification system. If you are interested in our products, please feel free to contact us!