Anatomy of belt cleaners
Primary scrapers comprise a scraper blade (1) mounted onto a supporting shaft / beam (2). The shaft / beam is 'spring loaded' by means of either rubber bushes or an adjustable torque arm (3). The scraper support is then bolted onto the conveyors' head chute support steelwork (4) at either side of the chute.
b) Secondary belt scrapers
These scrapers are installed within the head chute and are designed to remove any residual material which is not removed by the primary scraper, before the belt commences its return to the tail-end of the conveyor.
Examples of secondary belt scrapers include the following :-
Single blade scrapers
When used on contact with the belt on a crowned pulley, the blade wears to conform to the shape of the belt and pulley.
The blade usually is made so that it can be adjusted from time to time for the most effective cleaning action.
As with primary scrapers, the removable blade(s) of the scraper (1) are bolted onto a support bar (2) which spans the width of the conveyor chute work and protrudes outside of the chute on either side.
The support bar is also a torsion bar as it applies the necessary force onto the scraper blades to ensure that they remain in contact with the belt at all times. The support bar is then connected to the scraper support mechanism (3) which is bolted to the chute via a support bracket (4). The adjustment mechanism (5) is usually mounted outside the chute for maintenance accessibility.
Material buildup on the scraper blades is prevented by the inclusion of low-friction liners (6) attached to each blade.
Dual blade scrapers
The adjacent picture is an example of a dual bladed scraper.
The two blades (1) are pivoted on bushes (2) at either end of the support (3). The pressure which is applied to the belt is adjusted on the scraper's attachment brackets (4) on either side of the scraper.
The feature of the pivot enables both rows of blades to maintain effective contact with the belt and the twin row of blades improves cleaning.
Articulated blade scrapers
This scraper design consists of a series of short blades(1) pivoted on arms (2) which are spring-loaded to maintain contact with the belt surface.
The blades are arranged in a staggered, over-lapping pattern so that the entire width of the belt is cleaned efficiently.
The independent blades offer the advantages of self-adjusting to the belt surface, compensation for wearing of the blades and any deflection or vibration during use causes buildup on the scraper to being dislodged.
This type of belt cleaner must be inspected relatively frequently, adjusted and cleaned so that the blades are free to pivot and to contact the belt properly.
Rotary belt cleaners
A number of variations to brush-type cleaners and rotary blade cleaners are available however the two categories are outlined below.
Rotary cleaners consist of power driven shafts (1) or tubes to which brush bristles (2) or blades are attached. The shaft is can be driven by an independent drive unit (3) or by the head pulley shaft via a chain or pulley drive.
These brushes or blades are made wider than the normal belt width to ensure adequate cleaning across the belt.
The brush bristles are made of nylon or bassine and in the case of blades, are made of rubber and are designed to develop have a 'flicking' action when in service.
Rotary brush cleaners are not commonly used in bulk materials handling and they are best suited to lighter duties and where the spillage is a dusty or dry granular material.
Material build-up in the brush can be a problem when these cleaners are used in wet and sticky applications. The brushes are usually arranged in a helical pattern to expel material and prevent clogging.
Brush cleaners can be either high- or low speed rotation. Low-speed rotary brush cleaners are designed to operate at peripheral speeds of 2.05 to 3.08 m/s, and are most effective on dry granular materials. This design gives a longer life because the lower speed causes less wear on the bristles.
High-speed rotary brushes are designed to operate at peripheral speeds of 5.13 to 7.7 m/s and are more effective on damp granular materials as the higher rotary speed produces centrifugal dislodgement of material from the bristles.
The rotary-blade type belt cleaners use rubber blades arranged parallel to the shaft rather than bristles arranged radially around the shaft. The blades are forced against the return belt and the scraping action removes material and 'flings' it into the chute.
As with the brush scrapers, blade scrapers are available in two speeds. Low-speed rotary cleaners have a peripheral speed of approximately 5 m/s and are used on either dry or damp materials.
High-speed rotary blade cleaners have a peripheral speed of approximately 7 m/s and is best suited for applications where the material is wet and sticky.
The direction of rotation of both the rotary brush and rotary blade cleaners is always opposite to the direction of the conveyor belt travel.
The Ultimate Guide to Efficient Conveyor Belt Scrapers
Disclaimer: This content is provided for educational and entertainment purposes only and does not constitute professional advice. We do not guarantee the accuracy or completeness of any information presented. We are not liable for any actions taken based on this content. For specific issues or decisions, we recommend seeking professional advice. This content is not promoted on social media.
Introduction
Spare parts are essential to any manufacturing process, and conveyor belt scrapers are a vital part of that. They help to improve productivity by removing unwanted materials that can build up on the surface of the conveyor belt. This article will show you what they are, how you can choose them for your particular application, and some of the benefits that come with using them.
What are conveyor belt scrapers?
Conveyor belt scrapers are used to clean the conveyor belt. They remove debris from the belt, which can be anything from dirt to food particles that have fallen onto it during operation. They can be mounted on either side of a conveyor system, depending on what kind of material you want to collect and remove from your equipment‘s moving parts.
How to Choose the Right Conveyor Belt Scraper
Choosing the correct belt scraper is a critical part of your conveyor system. The type of material and size of your belt will determine how much force is required to move it, so it’s important to understand these factors before making your selection look at conveyor belt scrapers in Melbourne.
In addition to selecting the right size, material, and type of scraper for your application–you also have to consider whether you want a manual or automatic model. Manual scrapers are typically less expensive than automatic ones but require more effort on the part of workers who use them regularly (such as dock workers). Automatic scrapers may be more expensive up front but require less labor over time because they’re self-cleaning and require little maintenance beyond changing out blades periodically (usually every 6 months).
Types of Conveyor Belt Scrapers
There are several types of scrapers, but they all serve the same purpose: to remove products from a conveyor belt.
The first type is called a belt cleaner. This type of scraper is used when there’s no need for high-quality product removal or when you want your product to remain intact on the belt until it reaches its destination. Belt cleaners are ideal for removing small amounts of dust, dirt, and other contaminants from your conveyor system. They’re also perfect for keeping areas around the bases of machines clear so that dust doesn’t build up over time–this can lead to problems with machine performance down the line!
The Benefits of Using Conveyor Belt Scrapers
Conveyor belt scrapers are an essential piece of equipment for any factory that uses conveyor belts. This is because they reduce the risk of damage to machinery and products, as well as ensure the smooth running of your conveyor system.
Conveyor belt scrapers can also help you meet environmental regulations by reducing your carbon footprint. They do this by reducing energy consumption, which in turn reduces emissions from fossil fuels used for power generation.
There are lots of uses for conveyor belt scrapers, and they can help you improve your productivity.
Conveyor belt scrapers are a great tool for cleaning and maintaining your conveyor belts. They can be used to remove dirt, grime, and excess material from the surface of your conveyor belt. This will help you to maintain it in good condition so that it lasts longer and is more efficient at its job.
Conveyor belt scrapers come in many different shapes and sizes depending on what they’re being used for; some have one side that’s flat while others have two sides with different angles on them.
Conclusion
We hope that this article has helped you understand the importance of using conveyor belt scrapers. They are a great way to improve productivity and save money at the same time. If you want more information on how we can help with your next project, contact us today!
Persisting in "High quality, Prompt Delivery, Competitive Price", we have established long-term cooperation with clients from both overseas and domestically and get new and old clients' high comments for Self Aligning Idler,Conveyor Idler Manufacturer,Mining Conveyor Rollers,Conveyor Idlers Manufacturers,Conveyor Components,Conveyor Roller Supplier,Troughing Roller,Pulley for Conveyor Belts,Conveyor Cleaner,Heavy Duty Conveyor Rollers
