Chute conveyor applications

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Chute conveyor applications

chute conveyor applications

Conveyor belts invariably discharge into a chute for gravitational transport of the ore onto another conveyor belt or to the next stage in the ore dressing process. The rate of ore flow impact can be broken by the installation of a "dead box" in the chute as illustrated below.

A layer of ore forms in the bottom of the "dead box" and breaks the velocity of the flow. In addition, wear is rock on rock. The chute can also be protected by liner plates. Chutes are transfer points in a materials handling plant. They often demand more attention and can be the source of more downtime than the conveyors or equipment that precede or follow them.

Ideally the chutes are designed first, and then the plant equipment and structures are placed around them.

Easy Flow Conveyor Transfer Chutes

This is sometimes not possible due to other constraints. For example, such constraints are the presence of critical supporting steelwork, space restrictions underground and existing plant where modifications are required.

As a result, chutes may suffer and the final design can be a compromise Fig 2 shows how not to design a chute. The nature and characteristics of the equipment before and after the chute are clearly defined.

If a conveyor belt, what is the belt width, belt speed, loaded I material profile, material trajectory? What is the height through which the material must fall?

Does the material have a single flow path, or are there alternative flow paths? Although chutes have a common purpose, they have to accommodate a wide variety of material characteristics.

Minerals are found distributed in many different geological areas. In addition, each geological deposit often contains materials with different properties.

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There are two types of diamond deposits: a volcanic pipe and an alluvial deposit along river paths and coastlines.

In volcanic pipes, material near the surface is weathered and produces a high proportion of fines. Deeper underground, the material becomes harder and less weathered. However, this material weathers quickly and produces fines due to crushing and processing stages towards the smaller size ranges. Gold mines are usually at considerable depth. The rock is dense, hard and abrasive. However, there are a few open cast gold mines where the material characteristics are significantly different.

chute conveyor applications

Material characteristics can change from season to season, or even day to day, on the same mine. Chutes are designed for the worst possible conditions and material characteristics. It is essential to derive by testing the material characteristics such as size distribution, maximum lump size, moisture content, angle of repose etc. For changing conditions, the spectrum of characteristics is required. Pilot plants or sample plants are useful, not only to the extractive metallurgist and plant operator, but also to the chute designer.

Such plants enable chute designs to be tested and optimised on the actual material to be handled. Chute design sometimes needs to be finely tuned to the material being transferred. It is often found that only minor site modifications are required to turn a problem chute into a successful one. It is essential to get feedback from operating mines on what does not work and what was done to rectify the problems.

Otherwise, previously inadequate design drawings are copied for future projects, thus perpetuating the problems. Surface chutes are fabricated from longer, welded, box sections.

However due attention is paid to access to liners and erection between floors of a building. Chutes must be easy to assemble and install.

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They must be effective in their job and require minimal maintenance.The Transfer Chute Design Manual brings together the way transfer chute design has evolved, relates the evolution to the underlying design principles that need to be applied to operate to the maximum with the minimum of maintenance consequences.

It also explains how conflicting outcomes can be accommodated and how to assess the compromises that must be made in such circumstances. It explains the theory of transfer design, how to apply the theory and also gives background on techniques that can assist in the design process. Finally, it explores more advanced transfer chute design applications and works through transfer design issues and their solutions.

The text includes over photos, graphs and illustrations to provide a balance between theoretical and actual working applications. Regardless of the type of material that needs to be transferred, whether it is dusty, wet, heavy or light, The Transfer Chute Design Manual presents a solution. There are also troubleshooting and quick reference guides as well as sections on advanced modelling and maintenance invaluable to the materials handling design engineer, the maintenance manager and the new mechanical engineer seeking direction and solutions when confronted with conveyor transfer problems.

The Transfer Chute Design Manual will allow the engineer to optimise the transfer of materials while reducing down time and minimising maintenance to bring about a more efficient operation of the total conveyor system. The Transfer Chute Design Manual quantity.

Description Additional information Description Getting maximum output with the minimum downtime. The theories that make practice perfect. Get the answers and the formulas. The optimum Manual.Send an email. Do you recycle plastics or glass? Are looking for an economical way to sort these material flows? Our recycling sorting systems with inlet chute efficiently separate mixed materials and remove contaminants with precision.

Sesotec recycling sorting systems with chute are suitable for removing contaminants or impurities from material that has already been shredded. They sort plastic flakes and regrind as well as glass fragments.

Sesotec offers machinery designed specifically for one purpose as well as universal multi-sensor systems for various sorting jobs. Depending on the application, sensors include high-resolution CCD line cameras, near-infrared sensors and inductive metal detectors.

The electronics assembly analyses the recorded data based on colour, shape or material and sends a signal to the air ejection unit, which removes contaminants from the material flow down to the millisecond with a blast of air.

Looking for more information or advice? Contact us. Thanks to a modular design, several sensors can be combined, making it possible to sort out coloured flakes, metals and foreign plastic components with precision and reliability.

We have detected the following country based on your IP address: If this is not correct, please choose your country below. That's what distinguishes our products. More information on how Sesotec recycling systems with chute work is available here.

Our systems can be configured swiftly and are easy to operate thanks to a touch display with intuitive navigation The smart operating software SesoDesk with Octa-Core technology enables parallel signal processing of sensor information while guaranteeing the greatest degree of flexibility, even when it comes to challenging sorting jobs It is possible to retrofit sensors without any hassle Our sorting systems are adapted to the individual area of application, designed for durability thanks to wear protection and are easy to maintain The energy-efficient Sesotec systems have been optimised with regard to the consumption of compressed air and electricity.

They are used primarily to improve fragment quality during the recycling of container glass and flat glass. With the help of a colour sorting unit, it is possible to achieve high-quality single-colour fractions out of mixed-colour glass fragments.

Select filter Reset selection Recycling Plastics Food. Sesotec sorting technology replaces manual sorting of PET flakes. Sesotec sorting systems secure supply of recycled PET material.

Recycling sorting systems with chute

Systematic glass recycling. All about PET. Sesotec live!

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Chinaplas Shanghai Link to event. FIC Shanghai Link to event. Altkunststofftag Bad Neuenahr.The mine had been faced with replacing transfer chutes almost every three months, as they could not withstand the arduous operating conditions.

Run-of-mine material with lump sizes up to 1, mm is fed via an apron feeder onto a grizzly feeder, with the oversize material reporting to the jaw crusher. The large size of the lump kimberlite in this application — as well as material being uncontrolled — posed an ongoing challenge to the transfer system. Another challenge in this primary circuit is that the conveyor receives material from the grizzly underpan and jaw crusher discharge, and lack of material control had resulted in high impact onto the conveyor belt.

This damaged the conveyor and caused considerable spillage, resulting in unplanned downtime as the conveyor belt had to be replaced just about every quarter. The added expenditure and lost productivity meant increased operating costs for the plant, and eventually led to a decision to address the total material transfer system. The technical team from Weba Chute Systems assessed the challenges being faced and, in close collaboration with the mine, engineered a material handling solution.

According to Tintinger, standard solutions for transfer points do not consider factors such as lump size and material velocity, or the general arrangement of the transfer point and the relationship between the equipment that feeds and receives material. The material then flows through the grizzly discharge chute and reports to the crusher.

The combination of an engineered transfer point — with the swing mechanism in this position — has drastically reduced high impact and excessive wear previously experienced. The grizzly underpan chute system handles lump sizes of minus mm and has been designed to accommodate this material.

With a drop height from the grizzly feeder to the conveyor of about seven metres — and with lump sizes of up to minus mm — this could become a challenging transfer point. The crusher discharge chute is the final of the four engineered transfer solutions; while the same engineering principle as the third chute has been applied here, the drop is not as far.

The combination of these two chutes has significantly reduced material impact onto the conveyor and has substantially increased belt life. Weba Chute Systems supplied a custom-engineered chute to tackle a challenging application at a diamond mine in Botswana.

An illustration of the primary crusher circuit transfer chute engineered for a diamond mine. Leave a comment!The engineers at EMI manufacture custom heavy-duty industrial conveyors to ensure that they expertly accommodate the needs your facility. Our standard industrial conveyor belts come in flat belt, incline, adjustable angle and Z-belt models. Many specialty applications are also available, including models for box filing and transport, quality control and parts diverting, metal detecting, runner separation, plastic cooling conveyor systems, and conveyor shoots.

At EMI, we provide our clients with industry-leading comprehensive expertise and service. Our specialists know what questions to ask and which details to consider when designing custom industrial conveyor belts and conveyor shoots to satisfy the needs of your application.

Our Cobot Ready Conveyor model is a lightweight, durable extruded aluminum frame conveyor, featuring an internal drive, Ethernet connection, photo-eye workpiece detection, URCap for easy programming on Universal Robots.

Available in a wide range of lengths and widths to meet your specific needs. EMI conveyors and automation systems are designed utilizing modern 3-D CAD solid-model engineering coupled with 40 years of experience providing quality, custom automation solutions for the plastics molding industry.

EMI is now offering replacement parts online! Our sales and service department can help you find replacement parts for all EMI conveyor makes and models. You can place your order online or give us a call at for more information.

Reference our Exploded Views and Parts Lists. Customer Portal. Error: Javascript is disabled in this browser.

chute conveyor applications

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Switching Accounts. Yes No. Switching accounts in the middle of an order will clear your current cart. Are you sure you want to switch accounts? Switch Cancel. Industrial Conveyors and Automation Systems The engineers at EMI manufacture custom heavy-duty industrial conveyors to ensure that they expertly accommodate the needs your facility. Cobot Ready Conveyors Our Cobot Ready Conveyor model is a lightweight, durable extruded aluminum frame conveyor, featuring an internal drive, Ethernet connection, photo-eye workpiece detection, URCap for easy programming on Universal Robots.

Custom Engineered Automation Systems EMI conveyors and automation systems are designed utilizing modern 3-D CAD solid-model engineering coupled with 40 years of experience providing quality, custom automation solutions for the plastics molding industry. Complementary Content theme-toolbar utb-shelf. All rights reserved.Telescopic dry bulk loading chutes have extensive range of optional components for wide range of needs.

Understanding Conveyor Systems

Dust collectors are key elements of bulk solid loading chutes. They collect any fugitive dust during bulk solid loading and prevent dust emission to the environment. Several telescopic loading chute dust collector models are available depending on application requirements. If there exists enough height below discharge unit silo, hopper, conveyor etc in line dust collectors can be used in loading chutes.

Filter units are installed at the top. Bulk material flows through the space between filters. Dusty air is collected through these filters.

Transfer Conveyor System with Chute Accessory

Dust content in the air is trapped by filter units. Automatically operated pulse jet filters are used for supplying air shocks to the filters and sending dust back to the stockpile downside. Offset type dust collectors of telescopic loading chutes are installed at the edge of top flange with an angle.

A vacuum fan is utilized to supply required vacuum air. During material discharge, fan unit vacuums the air from the discharge point of loading chute. This vacuumed air passes through the passage between inner and outer chutes. The inclined design occupies less height and provides easier installation below hoppers and silos. Telescopic loading chutes have outlet for dust collection system connection. Any external fan, dust collector or bag house filter can directly be connected to built in outlet.

If the loading chute installation area does not have enough space, separate dust collectors can be utilized. These dust collection units are independent systems that have their own fans, filters and discharge hoppers.

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If central dust collection systems exist in the plant, they can be connected to loading chutes. Air outlet of the telescopic loading chute is used for connection. Air flow speed is to be adjusted with respect to operation conditions. Collected dust is stored in external dust collector. This configuration is suitable for applications where several loading chutes are to be used together at the same place.

Single central dust collector can be used for collecting fugitive dust from all loading chute systems. Bottom closure and sealing cone is used in tanker loading chutes to prevent any product spillage after loading. The conical shaped valve can move in vertical direction. It normally closes the outlet port of loading chute at the bottom.

When the loading chute is placed on the tanker inlet flange, the conical valve moves downward and opens the product discharge passage. After tanker loading is finished, the loading spout is retracted.

Telescopic chute retraction moves the bottom closure cone upwards and closes the outlet. Any remaining product within the loading chute is kept inside during retraction and spillage is prevented. Material composition, moisture, particle size etc are some of the important attributes of bulk solids and it may be needed to check these values before loading.

Bulk solid sampling systems are used to get a sample from free flowing bulk materials. In telescopic loading chute applications, a manual or automatic sampler is installed above the loading chute. During loading, sampler takes out some amount of material from the material flow. In case of high temperature bulk solid loading needs like fly ash handling systems, high temperature resistant loading chutes are to be utilized. Mechanical components including electrical motors, sensors etc. Loading chute and skirt fabrics are chosen from high temperature fabrics.

Bulk solids having temperatures up to C can be discharged with high temperature resistant loading chutes.How do they work? Simply put, VIBCO Vibrators break the friction that holds material in place and creates all sorts of challenges like ratholes, bridges, clogs, jams, and sticking.

Product Application Library. Bulk Material Flow.

chute conveyor applications

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Recycling sorting systems with chute

Work Truck Show. The sawdust was continously knocked loose during unloading eliminating bridging problems in the cone. The vibrators work as needed and dust drops to rotary valve when in service. Material now flows freely to rotary valve and there has been an increase in production. No more cleaning off of the screen and therefore no interruptions in production.

A customer was having problems with material not falling through the screen, especially if there were lumps or excess moisture.

This constantly required someone to physically lift up the screen a few inches and drop it back in place. For a short period of time, this allowed the product to fall through the screen. It produced the right amount of vibration to keep the bottles in line so that they fed through to the indexing area without getting hung up. The result was a dramatic reduction in feeder downtime, virtually zero broken bottles, and the risk of injury from broken glass was eliminated.

After installing the VIBCO Model US High Frequency Electric Vibrator the customer received the following benefits: their feeder design works properly, increased production flow, did not lose time or money, they gained it. At just 85 dB at one meter, it immediately eliminated the noise problem. The high-frequency vibration greatly improved material flow. The high-frequency rotation also allows the vibrator to self-tighten into the railcar vibrator pocket, so more vibratory force is transmitted to the railcar.

The vibrator was attached to the side of the hopper and 25 ft. They have now increased the overall efficiency of their process. The vibrator prevents grain from sticking and clogging and helps to ensure a complete empty every time.


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