There are many types of belt conveyor cleaners, and the common cleaning devices include hammer cleaners, spring cleaners, alloy rubber cleaners, rotary brush cleaners, empty section cleaners, cleaning rollers, hydraulic cleaners, PUR polyurethane belt cleaners, closed cleaners, carbide scraper cleaners, electric roller brush cleaners, electric vacuum cleaners, rotary cleaners, etc. It is not possible to use all of them on conveyors, so here are a few commonly used cleaners.
The PUR polyurethane belt cleaner is installed at the drive drum of the belt conveyor, its scraper is made of polyurethane composite material, which is formed by the integrated processing of the mold, the scraper surface is smooth, the straightness is good, it has low friction, high wear resistance, high strength, and has a fairly stable scraping effect, which can effectively remove the fine particles and wet sticky materials on the residual belt, and the pre-pressure pressure regulator ensures the stable contact pressure between the scraper and the belt. The scraper can generally be used for 1~3 years, and it will never hurt the belt; The use of polymer polyurethane, coupled with good comprehensive mechanical properties, prolongs the service life of the product; The design structure is compact, the formulation is reasonable, and the product is lightweight, beautiful and easy to operate; The spare parts of the product are interchangeable and adjustable, which is more convenient for installation, commissioning, replacement and maintenance.
The alloy cleaner mainly cleans small particles and their media, and the moisture of the transported material can also be cleaned when the humidity is more than 5%. The tungsten carbide scraper cleaner is installed at the head of the belt conveyor, and the scraper material is made of cemented carbide, which has two forms: single and double, and the pressure of the scraper on the conveyor belt is changed by adjusting the counterweight to achieve the effect of thoroughly cleaning the material.
Its structure is novel, with a unique buffer compensation device, good anti-impact oscillation performance of the conveyor belt, good cleaning effect, and not easy to damage the conveyor belt. It is also equipped with a high-performance standard component system, including the system support pipe, support pipe extension and elastic buffer device, the adjustment mechanism is convenient for the adjustment of the contact pressure between the scraper and the conveyor belt, and the metal scraper blades on both sides of the adjustment are downward arc after the scraper is worn, which effectively prevents the edge of the scraper from damaging the PE blade guard with a smooth surface of the belt, which can well prevent material accumulation and scaling.
The empty section cleaner uses a rubber plate or wear-resistant liner as the cleaning plate, which can be made in a "herringbone" shape, or "/" shape, and is installed on the return branch of the conveyor belt, on the upper side of the conveyor belt, near the tail pulley, or at the reversing pulley of the vertical tensioning device. In order to compensate for the wear of the cleaning plate, springs are often used to automatically adjust the contact between the cleaning plate and the conveyor belt to ensure the quality of cleaning.
Rotary roller brush cleaner, is a new type of product, in recent years in China began to put into use, can effectively clean the surface of the drum and the bottom surface of the conveyor belt adhesion, driven by the motor cylindrical nylon brush, the brush tip and the belt surface slight contact, the direction of rotation of the nylon brush and the return conveyor belt running direction is opposite, so as to stick to the surface of the particulate brush, to achieve the purpose of thorough cleaning. It has been widely used in power plant coal conveying belts, chemicals, sugar refining, pharmaceuticals, ports and terminals and other industries.
The rotary brush cleaner is composed of a motor, a reducer, a cleaning drum, a coupling, a bearing seat and an adjustment frame, and its performance characteristics are as follows:
(1) Integrated design, easy to install and adjust, and strong applicability.
(2) During the cleaning process, it will not cause the tape to deviate.
(3) Safe and reliable, long service life, low maintenance cost.
(4) When the cleaner is working, the cleaning point is in continuous contact, the cleaning is powerful, and the cleaning effect is good.
(5) The nylon brush is processed by special technology, which is non-sticky and non-scaling.
(6) No wear on the tape, prolong the service life of the tape.
The alloy rubber cleaner is installed at the head roller, which mainly relies on the elastic force of the rubber rod, and the scraper material is changed from rubber to cemented carbide after the material and the conveyor belt are separated close to the surface of the conveyor belt to clean the material bonded to the conveyor belt. The gold rubber cleaner is mainly composed of a plurality of alloy scrapers, scraper frames, rubber elastomers, beams, adjustable fixing frames, etc., its structure is simple and compact, and the normal contact between the scraper and the driving drum can be adjusted by adjusting the fixed frame, and then rotating the beam shaft to make the contact pressure between the scraper and the driving drum reach 100~150N after the locking bolt.
The material swept by the alloy rubber cleaner will fall directly into the head cone bucket of the continuous conveyor, and will be conveyed along with other materials, so there is no problem of accumulation and material spilling on the return belt. In order to achieve a better cleaning effect, the current more mature experience is to increase the number of cleaners at the head roller and use them together. For example, alloy rubber cleaner P and H type are used together. plus a carbide scraper cleaner; When the return conveyor belt enters the lower roller, the lower roller adopts a comb-shaped roller or a spiral roller or a V-shaped comb roller, so that a better cleaning effect can be achieved.
