A concrete batch mix…
For some large concrete mixing plants, their overall control is based on the PLC control system. In their operation process, especially in some harsh environments, various electrical failures are easily caused by external factors, thus affecting the operation of the concrete mixing plant.
During the operation of concrete mixing plant,
For those not in the know, most concrete plants use pneumatic systems (compressed air) to operate the various functions of the concrete plant like opening and closing the cement silo valve and the gates on the aggregate bins. These devices use a solenoid valve to turn the air on and off. These valves can be configured many ways but concrete plants commonly use the simple open or closed valves meaning they are all open or all closed; or they use inching meaning they can be opened all or partial. Some concrete plant operators, especially those with manual control systems, will have a difficult time controlling precision weighing of materials when the simple on/off valves are used which is discussed further in a separate post.
We get a lot of questions about hot water and concrete batch plants. While we don’t actually sell water heaters we have partnered with our dealer FESCO Direct for our customer’s hot water needs. This doesn’t make me an expert on water heating, but as a manufacturer of concrete plants and having been in, out and around concrete plants all around the world I’m confident in my qualification to address some of the most basic questions in regard to hot water use in concrete plants.
There are lots of different types of concrete plants. They can be classified by what they are producing concrete for, the hourly production, the way the proportion materials and even the way they are constructed. First, it is important to know that concrete plant can be considered any machine that proportions the materials for concrete and then moves the materials to a mixer. Some concrete plants like precast, paving, and central mix include a mixer as part of the plant, while other concrete plants like ready-mix will use a mobile mixer usually mounted on a truck. Small contractors or users of concrete will frequently use a small drum mixer and shovel materials into it; this is not a concrete plant, just a mixer being fed manually.
Throughout the world there has been much emphasis on the sustainability of each and every project or activity being undertaken. Sustainability in general terms refers to the endurance of systems and processes. Sustainable approaches to construction and development must be sought at all times in order to efficiently manage the resource base from depletion, environmental degradation and even climate change. In other words, sustainable development meets the needs of the present generation without affecting the ability of future generations to meet their own needs.
The price, power and configuration of each type of concrete mixing plant are different. Most are small concrete mixing plants, which are used to build or build Bridges and roads in rural areas. And large concrete mixing stations are mainly used for commercial mixing or national water conservancy, highways, high-rise buildings and so on.
When the control system of mixer is connected to an electricity source, the operation interface of the man-machine interaction will appear and system will begin to process initialization which includes the formula number, concrete slump, concrete grade and productivity.
In How to Operate Concrete Batching Plants Safely (Chapter One) we have mentioned checking rules of concrete batch plants before starting the system, here we are going to discuss matters needing attention after the system starts.
To operate and maintain a concrete batch plant properly, an operator has to master lots of knowledge and skills. Therefore, it’s necessary for him or her to accept systematic training before going for the position. The fact is, many operators have had no opportunity or time for scientific training and most of them learn in practice, which enables them to master quickly practical knowledge of operation. However, some skills, especially those entail maintenance, should also be learned because they influence eventually the service life of components of a concrete batch plant.