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Attrition scrubbers/cells

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The attrition scrubbers/cells are used  to scrub the surface of  particulate to remove surface coatings,films or slimes to improve mineral values. In the sand washing plant, dispersing the slime in quartz sand to remove the impurities on the ore surface can create conditions for subsequent mineral processing and is an important part of quartz sand production line. It can also be widely used in other industrial areas of scrubbing operation.

Efficient attrition scrubbing removes unwanted contaminants, impurities, surface films, coatings, clays or slime, designed to achieve the strongest possible scrubbing to improve mineral values and create a more desired product, without damaging or degrading the recovered particles.

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Applications for attrition scrubbers

Flotation – cleaning particle surfaces prior to flotation to increase selectivity.

Glass sand – removing iron oxide coating on silica sand by attrition and flotation to produce a low-iron glass sand.

Industrial sand – Scrubbing blasting sand and fracturing sand to disperse contaminating soft particles and other impurities, which are then removed by desliming. This process create a high purity silica sand, more crush resistant silica sand that will meet your customers’ specifications.

Ores and other minerals (e.g. phosphate) – freeing impurities so they can be removed with the help of a spiral classifier or hydrocyclone.

Dissolving solids – using the attrition machine to dissolve solids, reducing contact time by continuously exposing fresh surfaces to the solvent.

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Typical application of attrition scrubbers

-Surface cleaning of particles
-Sand particle polishing
-High-intensity conditioning
-Liberation of valuable minerals from clay matrix
-Washing plastic chips for recycling
-Reaction vessels
-Soil washing – liberation of contaminants

Components of attrition scrubber

Tank

The cross section of the scrubber tank is an equilateral octagon and the tank is welded with optimized structural steel or stainless steel. The inner wall of the tank is coated with high-density polyethylene HTPE liner plates, and the gap of the liner plates is adglutinated and sealed, so that there is no leakage during prolonged use. High wear-resistant lining plate can be applied to the strong impact of various pulp, effectively protect the tank, and avoid iron pollution of pulp.

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Drive

The operation of the scrubbing machine is driven by the motor to the impeller through the flexible triangle belt, which drives the impeller to run at high speed and generates strong scrubbing kinetic energy. The flexible driving has high driving efficiency, smooth operation and low noise, and avoids the possibility of impact damage to the driving system caused by the turbulent vibration of the slurry.

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Drive shaft system

The drive shaft system is composed of precision cast outer cylinder and precision machined stainless steel long shaft. The bearing adopts high-strength rolling bearing, and the bearing chamber is precision sealed. The shafting system is finely assembled and strictly checked for dynamic and static balance. It has comprehensive mechanical properties such as high strength impact resistance and long life.

The impeller

The impeller is arranged with two or three layers up and down to meet the needs of different concentrations of slurry. When the impeller is running, strong scrubbing kinetic energy is generated inside the barrel, so that the slurry can be fully rolling and friction, and the ideal scrubbing effect can be achieved. The impeller is made of wear-resistant polyurethane and cast-in-block, easy to disassemble and maintain. The polyurethane blades of impeller are thick and wear-resistant, light weight and greatly reduced energy consumption.

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Ultrasonic device

The attrition scrubber can be customized with ultrasonic device under the client request, the ultrasonic wave is evenly arranged on the barrel wall, the ultrasonic wave is generated and applied to the being scrubbed slurry. Adding proper amount of oxalic acid, a more ideal effect of iron reduction and impurity removal can be achieved.

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High temperature and corrosion resistant treatment

If the attrition scrubber needs to deal with high temperature corrosive slurry, the attrition can be configured with properties of high temperature and corrosion resistance, and non-metallic wear-resistant brick can be installed as the inner wall, and the impeller can be treated with high temperature and corrosion resistance.

Sinonine offer a variety of attrition cell machine arrangements, based on your specific application. For example, add ultrasonic equipment ,make a scrubber with corrosion resistance.

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Features and technology advantages
1. Small power consumption, strong intensity of scrubbing and stirring, favorable effectiveness;
2. The impeller is above the slurry settling area, easy to start and low power to start;
3. Low circumferential speed of the impeller and long service life;
4. Simple equipment structure, large effective volume and small floor space;.

5.Diversified customization to meet your different needs.


Working principle of attrition scrubber

attrition scrubber

The motor drives the main shaft to rotate through the belt pulley, causing negative pressure area on the blade. When the material passes through, it is stirred and rinsed thoroughly, and then pushed out by the blade and flows along the wall of the barrel. As the material is continuously sent in, the cleaned material is constantly discharged from the discharge port to finish the scrubbing work.The ore slurry enters into the chamber through the feeding pipe. Under the strong stirring action of the impeller, the negative pressure zone is generated in the blade. When the ore pulp passes through, it is stirred and rinsed thoroughly, and then pushed out by the blade to flow along the wall of the barrel.The ore pulp particles generate enormous momentum and cause violent friction and collision with each other.The impurity film wrapped on the surface of particles is easy to be separated from the ore surface by friction and impact. The adglutinate on the ore surface is soaked by water and then through the intense friction and collision between the ore particles, the adglutinate will also be loose and broken down, so as to achieve the separation of clay and ore particles.These film impurities and clay are broken down and flaked into the slurry, which can be separated after subsequent desliming.

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Specification of attrition scrubber

                Model                Single volume
(m3)
                Cell quantity                Input size(mm)                Pulp density                Power (kw)                Dimension (LxWxH) (mm)                Weight
(kg)
                AS0.5-2                0.5                2                0-5<70%                5.5x2                2100x1340x1820                1200
                AS1-2                1                2                0-5<70%                15x2                2774x1510x2057                2400
                AS2-2                2                2                0-5<70%                30x2                3012x1597x2997                4800
                AS4-2                4                2                0-5<70%                55x2                3536x1852x5395                9600


Why choose sinonine?

We are the first and only company in China that can provide the turnkey project service- EPC service for quartz/silica sand processing plant. We can provide quartz/silica sand production equipment with high cost-effective. We have many silica sand production operating around the world including 46 manufacturers of quartz/silica sand, 12 glass manufacturers, 6 traders, 16 engineering companies and more than 22 construction companies.

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Comments and suggestions

I had extensive contact with Sinonine, visited its production base and equipment application, communicated with Sinonine's technical team for many times, and finally decided to cooperate with Sinonine. I am a local mining equipment dealer, need to constantly improve my product lines to meet the needs of different customers. Sinonine quartz sand production equipment is very suitable for me. They recommended me several types of equipment suitable for local use, provided perfect technical support, and at the same time gave me a lot of space in the price, which saved me a lot of trouble in the process of distributing equipment and made me a huge profit. Sinonine is a trusted company.

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+86-25-58875679
+86-18118821087