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high frequency screen jig

high frequency vibration screenforui machinery

high frequency vibration screenforui machinery

The high-frequency vibratingscreen stainless steel sieve, used in fine grain materials, according to the grade,adjust sieve inclination angle, need level adjustment of inclination of sieve surface, close to 55 ,the fineness can reach -300 mesh, account for 75% or so.

high frequency sizing screens

high frequency sizing screens

Widely used in fine wet screening applications, these high frequency screening machines comprise of up to five individual screen decks positioned one above the other operating in parallel. The stacked design allows for high-capacity units in a small footprint. The flow distributor splits the feed stream evenly to the individual polyurethane screen decks (openings down to 45 pm) where feeders distribute the stream across the entire width (up to 6 m) of each screen. Dual vibratory motors provide uniform linear motion to all screen decks. The undersize and oversize streams are individually combined and exit toward the bottom of the Stacked Sizer. Repulp sprays and trays arc an optional addition in between screen sections, which allow for increased screen efficiency.

By classifying by size-only, screens compared to hydrocyclones, give a sharper separation with multi-density feeds (for example, in PbZn operations), and reduce overgrinding of the dense minerals. Operations that replaced hydrocyclones with stackedhigh frequency screening machines in closing ball mill circuits can result in a decrease in the circulating load from 260% to 100% and 10 to 20% increase in circuit throughput.

The high capacity Stacked Sizing/screening machine consists of up to five decks positioned one above the other and all operating in parallel. Its use together with urethane screen surfaces as fine as 75 microns (200 mesh) has made fine wet screening a practical reality in mineral processing operations worldwide. The application of this technology in closed circuit grinding is demonstrated with specific application examples.

Screening is the process of separating particles by size and fine screening typically refers to separations in therange of 10 mm (3/8) to 38 microns (400 mesh). Fine screening, wet or dry, is normally accomplished with highfrequency, low amplitude, vibrating screening machines with either elliptical or straight-line motion. Various types ofwet and dry fine screening machines and the factors affecting their operation have been discussed previously.In fine particle wet screening, the undersize particles arc transported through the screen openings by the fluid andthe fraction of fluid in the slurry will therefore affect the efficiency of the separation. From a practical standpoint, the feed slurry to a fine screen should be around 20% solids by volume to achieve reasonable separation efficiency. Asmost of the fluid passes through the screen openings rather quickly, the fine screening process can be completed in ashort screen length. Therefore screen width, rather than screen area, is an important design consideration for fine wet screening.

Recognition of this concept led to the development of multiple feed point fine wet screening machines, or example, the Multifeed screen consists of three screen panels mounted within a rectangular vibrating frame and is actually three short screens operating in parallel. Each screen panel has its own feed box and the oversize from each panel flows into a common launder and then to the oversize chute. Similarly, the undersize from each of the three panels flows into the undersize hopper. The popular 1.2 m (4 ft) wide by 2.4 m (8 fl) long version has a total effective width of 3.0 m (10 fl) In general, multiple feed point machines have been shown to have 1.5 to 2 times more capacity than a single feed point machine of equivalent size and screen area.

Expanding further on this concept, the Stacked screening machine was introduced in 2001. With a capacity considerably greater than any other type of fine wet screening machine previously available, the Stack Sizer has up to five vibrating screen decks operating in parallel for a total effective width of 5.1 m (17 ft). The decks are positioned one above the other and each deck has its own feed box. A custom-engineered single or multiple-stage flow distribution system is normally included in the scope of supply to representatively split the feed slurry to each Stacked screen and then to the decks on each machine. Ample space is provided between each of the screen decks for clear observation during operation and easy access for maintenance and replacement of screen surfaces. Each screen deck, consisting of two screen panels in series, is equipped with an undersize collection pan which discharges into a common launder with a single outlet. Similarly, the oversize from each of the screen decks collects in a single hopper with a common outlet large vibrating motors rated at 1.9 kW (2 5 HP) each and rotating in opposite directions produce a uniform high frequency linear motion throughout the entire length and width of all screen decks for superior oversize conveyance.

As mentioned above, the fluid passing through the openings carries the undersize particles through the screen openings. The screening process is essentially complete when most of the fluid has passed through the openings. Any remaining undersize particles adhere to the coarse particles and are misdirected to the oversize product An optional repulping system is available for the Stack Sizer in which spray water is directed into a rubber-lined trough located between the two panels on each deck With this feature, oversize from the first panel is reslurried and screened again on the second panel. This repulping action maximizes the correct placement of undersize particles and its use will depend upon the particular objective of the screening machine.

To date, 1000s of screening machines are in operation at mineral processing plants worldwide. Dry mass flow capacity typically ranges from 100 to 350 t/h. This is roughly equivalent to 3 or 4 of the older style Multi-feed screens discussed above Like all screening machines, capacity depends upon many factors such as screen panel opening, weight recovery to oversize, the amount of near-size particles, particle shape, and slurry viscosity.

Sizers are for high capacity in a short compact machine. Generally you can make good cuts or separations with high efficiency. If you need near absolute 99.9% precision cuts, then a sizer cannot do that, and most inclined screeners also cannot. So that is why it is very important to understand what the separation goal is before selecting a screener. You cannot have high capacity and high accuracy + 99.9 in the same machine! This machine does not exist! A sizer generally can accomplish a similar separation of a single inclined screen in 2 or 3 screens, and 1/3 the length. of course a lot depends on the PSD, and how close the remaining particles are on each side of the desired cut.

high frequency screen - vibrating screens

high frequency screen - vibrating screens

Compared with conventional box-vibrating types of circular or linear motion, HFS serials, of only deck vibrating, have much higher efficiency and larger capacity. Benefit from their adjustable strokes and frequencies, they can meet various material without mesh blinding and are the ideal equipment for fines separation in mineral processing and final product screening in aggregate production.

HFS serials are the best solution for manufacturing sand sieving in aggregate plants, it can work with VSI as an one-to-one sand making process which is easier for arrangement and more economic than the present one-to-two.

Model 2HFS1860 2HFS1845 2HFS1645 3HFS1860 3HFS1845 3HFS1645 Screen Deck Area (m2) 10.8 8.1 7.2 10.8 8.1 7.2 Type Polyurethane steel wires Feed(mm) 0-40 0-40 0-40 0-80 0-80 0-80 Capacity(t/h) 83-364 62-273 55-243 83-450 62-360 55-290 Oper.speed(rpm) 1200-3000 1200-3000 1200-3000 900-3000 900-3000 900-3000 Stroke(mm) 1-4 1-4 1-4 1-4.5 1-4.5 1-4.5 Power(Kw) 18.4 15.3 15.3 27.4 24.3 24.3 Screen lncline 20-360 20-360 20-360 20-360 20-360 20-360 Weight(Kg) 13000 12200 11800 17500 15400 13600 Please note that: 1.All above equipment we offering are just basic models; 2.MES Process can produce the specific machinery according to clients' requirements.

high frequency screen_mineral processing item_china hengchang machine

high frequency screen_mineral processing item_china hengchang machine

This high frequency screen equips nylon or stainless steel sieve which is the necessary equipment for fine iron ore. At present the rich ore reserves are growing poor and poor, we should fully use of the limited mineral resources to create more wealth, using high-frequency vibrating screen, we can improve the fine ore powder 3-5 grade, and bring the good economic benefits and social benefits

1. High efficiency, small amplitude and high screening frequency.2. Since our high frequency screen does not contain rotating parts, there is no need of lubrication.3. Simple structure.4. Convenient to repair with low fault rate.5. Driving power of this machine is small, so with a small starting current and low noise.6. Adjustable of the body, and the size of the product can be controlled.7. Stable value.8. The sieve gap is not easy to block material.

customersHigh frequency screen are widely used in mineral processing, chemical, coal washing and other industrial, for the 0.074-1.5mm fine particles, it applicable for wet classification, dehydration and slag removal, can improve classification Efficiency and control of selected particle size, also improve the concentrate grade. Eat iron ore concentrator can use it deslagging before the strong magnetic machine.

high frequency horizontal dewatering screen henan victory machinery co., ltd

high frequency horizontal dewatering screen henan victory machinery co., ltd

High frequency dewatering screen is called high frequency screen for short. High frequency dewatering screen (high frequency screen) is composed of vibration exciter, pulp distributor, screen frame, frame, suspension spring and screen, etc. High frequency dewatering screen (HFS) has high efficiency, small amplitude and high screening frequency. Different from the principle of ordinary screening equipment, high-frequency dewatering screen (high-frequency screen) adopts high frequency. On the one hand, it destroys the tension of pulp surface and the high-speed oscillation of fine-grained materials on the screen surface, accelerates the useful minerals with large density and segregation, and increases the probability of contact between the materials with smaller than the separated particle size and the screen hole. As a result, a better separation condition is created, which makes the material with smaller separation size, especially the material with larger proportion, pass through the sieve hole together with pulp to become the product under the sieve.

The high-frequency dewatering screen adopts the cylinder eccentric shaft vibrator and partial block to adjust the amplitude. The material screen has a long flowing line and many screening specifications. It has the characteristics of reliable structure, strong exciting force, high screening efficiency, small vibration noise, durability, convenient maintenance and safe use. The high-frequency dewatering screen is widely used in the product classification of mining, building materials, transportation, energy, chemical industry and other industries. High frequency dewatering screen structure: mainly composed of screen box, vibration exciter, suspension (or support) device and motor, etc. The motor drives the main shaft of the exciter to rotate through the V-belt, and the screen box vibrates due to the centrifugal inertia force of the unbalanced weight on the exciter. Different amplitudes can be obtained by changing the eccentric weight of the exciter. Characteristic: 1. No rotating parts, no need to add lubricating oil; 2. Simple structure, convenient maintenance, durable and low failure rate; 3. The vibrator uses the resonance principle. It works in the critical resonance state of the double mass. It needs small driving power, no large starting current and low noise. 4. After the vibrator is started, the amplitude can reach the working stable value instantaneously. When parking, its amplitude will disappear instantly, and it is allowed to start and stop directly under rated voltage, current and amplitude. 5. The exciting force or amplitude of the screen body can be adjusted to control the particle size of the products under the screen. It is very beneficial to ensure the concentrate grade of the ores with different crystal size. 6. When the screen body vibrates, there is relative vibration between the screen bars of the screen plate, and the gap between the screen plates is not easy to be blocked. Selection instructions: 1. The motor can be set left or right, and the feeding box is an optional part, which can be selected by the user as required. 2. The user provides parameters such as material name, material concentration and treatment capacity for design and selection. 3. Only standard models are listed in the table. If there are special requirements on site, non-standard design and expert diagnosis can be carried out. 4. When the feed concentration is low, it is recommended to use the concentration hydrocyclone (Group) and vibrating arc screen.

We provide sand making solutions all over the world. With over 20 years of experience well ensure that youre always getting the best results from Henan Victory Machinery Co., Ltd. focused on quality.

tci manufacturing high frequency screens

tci manufacturing high frequency screens

TCI high frequency screens, commonly referred to as "PEP screens", come in a variety of sizes, frequency levels and configurations. Fine material is best separated with high speed and a small stroke. They are available in single or double deck configurations, and are equipped with either electric or hydraulic vibration. The ratchet-type screen tensioning makes for easy screen panel changes.

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