Today it is difficult to imagine without the use of high-production pipeline.To move the cargo, including bulk, using closed tape.You can say that this is the unit of continuous action, which is load-bearing body (flexible tape).Let's take a closer look at that as a conveyor belt, what is its purpose, scope, and also, what are the intricacies of operating the equipment.
Scope and purpose
Today it is one of the most promising modes of transport, which is almost indispensable for large traffic flow.In addition, the conveyor belt is an essential part of any heavy and light manufacturing.It is used in metallurgy for the transportation of bulk materials, food, medicine and so on.The operating principle of the device and in almost all cases the same.The differences may be in the form of a tape, its capacity and flexibility, as well as driving power.In most cases, this kind of conveyor can partially automate the production and reduce the amount of manual labor.With this considered transportable machines strict requirements.For the most part it comes to durability, performance and interchangeability of worn out tape.The units are capable of operating at temperatures ranging from -50 to 45, that is caused by specifications of the carrier body.
operation and design of belt conveyor
tape - a working body of the conveyor, pre-tensioned and connected.The frictional force between the belt and the drive drum, it is actuated.Moreover, the determining factor is the friction force, due to which the moving load-bearing and traction body.To eliminate the deflection ribbon along the conveyor roller set, and for which it rests during movement.As you can see, the device unit is quite simple.An interesting point is the speed replacement belt wear.This is done as follows: while the conveyor at the joint load-bearing body steams out to him by naklepki or vulcanization, attach a new tape.After the drive drum makes a complete loop, the other end is fixed.This approach is good because there is practically no downtime during the operation, as the installation is carried out in a few minutes, although much depends on the type of traction body.To clean the tape mounted brush and avoid skewing used centering rollers.The device is the conveyor belt such that the unit can be used in many industries.Now let's go further.
advantages of using a belt conveyor
Let's consider the main benefits that has this unit.The main advantage of the conveyor belt is that it can be used to transport loads at a very great distance.In some cases the length of the load carrying body may reach 3-5 kilometers.No other pipeline can not be so long.This is due to greater weight, complex structure and, most importantly, the high cost of equipment.In the case of a belt conveyor there are no problems.Another unquestionable advantage is the high productivity.Sometimes speed can reach 6-10 m / s, with a width of 2.4-3.0 meters tape.In this case, the capacity may exceed 20-30 thousand tons per hour.Furthermore, conveyor relates to universal conveying lines.This is due to the fact that you can move a variety of loads.Another important advantage - the ability to move goods in an inclined position.Angle increases and decreases the length of the conveyor speed.
Disadvantages belt conveyors
It is said that there are significant shortcomings that limit the scope of the conveying devices of this type.The main disadvantage - the high price of belts and rollers.In most cases, the traction and load-carrying body costs about 30% of the total cost of the installation that much.Although much depends on the purpose and technical characteristics (material, number of layers etc.).Another disadvantage is that the drum of the belt conveyor belt is driven by means of friction.This limits the angle of elevation, so it may not exceed 20 degrees.In addition, it is problematic enough to move dust-like loads, which during the movement may partially evaporate and fall.And difficult to operate at extremely low temperatures, and too high.Thermal effects alter characteristics of the flexible band, and also leads to breakage.
operation of belt conveyors
As noted slightly higher BOS can operate at high speeds.This makes the conveyor belt more productive compared to the other conveying units.The main feature of the operation is that it is possible to create complex routes.For example, it can be difficult track with curves, horizontal and inclined sections.Even under severe operating conditions (temperature extremes, high dust, etc.) conveyor ensures reliable operation without failure.In most cases, proper maintenance can be accurately predicted during the release of the traction organ failure.This allows the device to operate without downtime.To date, developed a huge number of drives that provide LC.If the length is set several motors that provide normal operation.When one drive, the second will work.In this case, although the performance decreases, but there is no downtime.
Design and construction of the tension and drive station
belt drive consists of a motor, gearbox and multiple couplings.In the field of bending or deflecting roller mounted battery, creating a smooth transition.The whole construction, with the actuator mounted on the base, which is to be laid beforehand.Drive consists of the drive, and boot the box, and the part where there is a tension device and a hopper, referred to as the tensioning station.Between these two stations is the middle part of the conveyor, it is made of several linear sections.The latter consist of identical linear sections interconnected by bolts.And now let's talk about what are the conveyors and what their fundamental difference.There are several interesting points.
Classification of belt conveyors
There are some signs by which these devices can be conditionally divided into several groups:
- for applications: there are general-purpose, special and underground (transport people katuchie and mobile);
- shaped track: simple (straight section), complex (with an inclined sloping trail), as well as curved or spatial (bending in the plane load-bearing body);
- in the direction of the load: lifting and folding;
- the form of tape and placement of cargo: is flat and grooved belt in various modifications;
- tilt tracks: horizontal, inclined, high-angle (angle greater than 22 degrees) and vertical.
It is understood that, in addition, the scheme provides for use of a conveyor belt of different traction and load-carrying body.Feeds are rubberized, of rubber, wire and steel.Ribbon type is selected based on the fact the conditions under which it will operate.For example, steel traction organs used for operation at high temperatures (up to 850 degrees), just as wire, which can transport loads at operating temperature of 1100 degrees Celsius.
mine conveyors
Separately need to say a few words about the conveying devices operating underground.It is noteworthy that the scheme of the belt conveyor of this type is slightly different.Several times the level of reliability.This is due to the fact that the load-carrying body is used to transport people and heavy piece goods, and all this is carried out in cramped conditions.The drive, for example, has two tensioning drum, which allows to make the device not only more powerful but also to ensure sufficient reliability.
Conclusion
Today, the popularity of belt conveyors is growing.For this simple reason we are constantly developing new types of load-carrying bodies.In particular, it is important to create a high-strength heat-resistant parts.For example, the need to increase the service life of the rollers that are constantly out of order.You can say that the work of the conveyor belt is a fairly cheap.If you move the goods to a distance of 30 km using LC, it will be much more economical than doing it by road.
