Reduction of noise emission
The requirements could not have been more different, even for one and the same customer. However, the system provider can optimally adapt the closed Pipe Conveyors and the open troughed belt conveyors to the respective situation. In order to reduce the noise emissions, as required at Sichuan Yadong Cement, we’re installing special idlers and low-noise bearings, and select the correct conveying speed for the application,” describes Dr. Echelmeyer.
An essential feature of the technology is that it enables hori
Using BEUMER calculation programs, a team of experts precisely calculates the static and dynamic tractive forces of the belt during the development phase of the system. This is the prerequisite for the safe dimensioning of the curves. BEUMER engineers select the type of drive technology and conveyor belts needed on the basis of these calculations. This ensures longevity of the entire system.
Taking all aspects into account
The energy question: Belt conveyor or trucks?
BEUMER Group provides their belt conveyors with environmentally safe electric drives and low-energy belts. Therefore, especially in these times of climate change and increasing greenhouse gas emissions they are considered a preferred option. The installed motors are mostly adjustable which permits the loads to be optimally distributed on the drive units under various operating conditions. If the belt conveying system conveys downhill, the system works in generative operation. The generated electric energy is fed back into the public network by a regenerative feedback unit. This way the owners can further reduce the operational costs of the entire system.
Belt conveyor or trucks? For Sichuan Yadong Cement this question was already posed during the first project, which implied the transport of limestone from the quarry to the intermediate bin. “Depending on the project, the belt conveying systems require up to 90 % less primary energy than comparable truck transports,” confirms BEUMER expert Echelmeyer and refers to the concrete project-related comparison. Trucks operated with diesel fuel require a specific primary energy of 11.4 kwh for each ton of transported material. The belt conveying system which was built later on required on the contrary only 1.44 kwh. If, as in this case, 7.5 million tons of raw material are transported annually, the use of belt conveyors means a total saving of 74 million kwh per year. This corresponds to a yearly energy consumption of more than 20 000 single-family houses. This can be noticed also from a monetary viewpoint: solely by saving diesel fuel, the operational costs of the company are reduced by more than 5.5 mio. €/a.
Complex and curved
TVO also means transport route optimization. This can become very challenging when dimensioning the belt conveying system, depending on the terrain conditions. Dr. Echelmeyer’s team was asked for example to design and supply an overland conveyor in Indonesia to transport clinker from the quarry to the cement plant. “The line ran through the rain forest, and the topography made it very challenging,” remembers Dr. Echelmeyer. The team developed and compared different route options. “The very long land corridor in particular required highly complex planning.” The team has to assess and evaluate the project properly before making a concrete offer. There is usually very little time to do this, not enough to send out an entire expedition crew. An effective alternative are aerial photographs that are evaluated with the right software on the basis of topographical data. This means that drones are becoming an increasingly important tool for BEUMER Group.
Drones – little helpers in the air
BEUMER Group has been using drone technology for about three years now. There are two different designs. The functionality and features of copters are similar to those of helicopters. Their rotors keep them hovering in the air. Fixed-wing aircrafts, on the other hand, are more like aeroplanes. They also have a higher range. Once in operation, they are constantly moving. Copters are particularly suitable for narrow take-off and landing areas or when they have to perform at low speed. They mainly fly over medium-sized and small building sites. In addition, they are used for quarry faces in quarries and construction inspections such as lower sides of bridges. BEUMER Group opted for a copter that the team uses to work on specific projects.
From the PC in the air – and back
The employees can plan the route from their computer. They calculate the exact flight path by using the specialised software. Then, the drone flies its pre-determined route. Smartphones and tablets can also be used to control the drone. The recorded aerial photos are corrected with regard to their perspective and evaluated photogrammetrically. The software calculates a point cloud in order to generate 3D models from the two-dimensional views, i. e. digital terrain models.
Long-term and strategic client partnerships
With BEUMER Group, the customer receives everything from one single source, starting with the query to technical dimensioning and the installation on site. If desired, the system supplier continues to support the operator with its comprehensive range of services, after the conveying system is in operation, to ensure high levels of machine availability during the entire running time. This is ensured by the BEUMER customer support with its more than 1000 employees world-wide. “We offer various solutions,” explains Dr. Echelmeyer. “They are matched individually to the respective needs of the customer, including service intervals and response times as agreed by contract.” In the event of a system standstill, qualified Customer Support technicians arrive quickly on site to prevent long downtimes. Customer Support offers around-the-clock telephone support every day of the year, helping to further reduce downtime to a minimum. The technicians perform remote analyses, indicate corrective measures and offer quick and reliable solutions to correct malfunctions.