Fire-resistant barriers of conveyor openings
Conveyor lines passing through fire barriers create a gap that needs to be closed when the fire alarm is triggered.
In the role of protecting the opening from the spread of fire and smoke through the opening of the conveyor line, fire-fighting gates and curtains with automatic lowering on a signal from the fire alarm panel act.
Completed works
Fire-fighting EI60 roller gates MVA on fire-resistant fabric for conveyor opening 
Conveyor fire barrier at the automobile disc factory
| Section with inclined non-driven conveyor | Questioning the position of suspensions with a moving conveyor line |
| The removal of the load occurs due to inertia. If an inclined roller conveyor passes through an obstacle, then a time delay of the opening overlap is set, provided that there is nocluttering of the overlap opening. | When using this system, it is necessary to guarantee that all openings will be free for the movement of the gate during the closing process. The suspensions must be at the same distance from each other and be equipped with signal controls. |
| Removal of bulk materials from a stationary conveyor line | Retention of bulk materials on a moving conveyor line |
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| Bulk materials that are unevenly distributed on the conveyor belt are removed by a device with a rotary lever, which, due to its own weight, is embedded in the transported material, and moving thanks to the pneumatic cylinder, frees the overlap zone. | Bulk materials are delayed by a barrier device. The gate of the barrier device can be lowered at right angles, in an inclined position or on the principle of convergence. After the overlap area is cleared of bulk materials, the conveyor line stops. |
| Blowing of bulk materials from a stationary conveyor line | Removing items using a drive conveyor line |
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| Light bulk materials can be removed from the overlap zone by blowing compressed air accumulated in the tank. | If the cargo transportation process is a conveyor line consisting of several drive sections, then when these sections are sequentially disconnected, first the conveyor located in front of the barrier, and then the next conveyor located directly under the barrier, the transported items are removed from the overlap zone. |
| Crushing of transported goods on a stationary conveyor line | System control with a moving conveyor line |
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| For transported objects with a fragile structure that can be fragmented due to the kinetic energy of the gate, it is proposed to use a system of type A-Y1, which is the most profitable economic option. | The control is carried out on the overlap area, which should be free of transported items. Before and after the section, sensors are installed, usually contactless switches, which through the control unit determine the operation cycle of the conveyor line. |
| Removal of bulk materials from a stationary conveyor line | Control of a moving conveyor line through a system of photocells |
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| A rotary lever in the form of a rake is inserted into the transported bulk material and pulls it out of the overlap zone. | The photocell system, located diagonally, controls the overlap zone, and when free space is detected, it stops the conveyor line. |
Emergency power supply is required for short-term operation of the conveyor in the fire alarm mode.
The principle of operation and requirements for fire barriers of conveyor openings
Such curtains are anti-fire membranes with automatic control, which, when the opening is closed, prevent the penetration of gorenje and fire products along the conveyor.
Since the conveyors, depending on the design and purpose, are very different, various fire-resistant barriers are used. For example, there is a belt conveyor for the office and an industrial chain or pneumatic conveyor with different sizes and features. Each conveyor requires an individual approach to the choice of a fire barrier and the method of its installation.
The fire-resistant barriers used by the MBA production company have quality certificates and comply with international standards.
Requirements for fire-resistant barriers of conveyor openings
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refractory barriers protecting conveyor lines must be certified and equipped with automation;
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the lifting and lowering of the fire-proof barrier must be carried out by an electric drive;
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barriers should be lowered only in the absence of foreign objects on the tape;
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damage to the fire-resistant barrier by objects moving along the tape must be prevented.
Features of fire-resistant barriers of conveyor openings:
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a large number of options for overlapping openings;
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the production of fire barriers conveyor openings is subject to mandatory certification;
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prevent the spread of not only fire, but also smoke due to the swelling material;
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fire-resistant barriers of conveyor openings work autonomously with a separate drive;
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the possibility of manufacturing various fire resistance, from EI 60 to EI 120;
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the fire-resistant barriers of conveyor openings are compact and do not interfere with the production process;
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installation is carried out without changing the design of the conveyor;
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the possibility of overlapping complex openings of unusual shape;
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the movement of the barrier is possible, both vertically and horizontally.
Fire resistance EI 120 barriers conveyor openings
Depending on the project and the types of fire barriers used in the construction, the MBA company can offer a fire-resistant barrier for the conveyor with various degrees of fire resistance. For some projects, barriers of conveyor openings EI 90, EI 120 are used, although EI 60 is most often laid. This degree of fire resistance is realized through the use of a multilayer barrier structure or by increasing the thickness of the fire-resistant fabric. If irrigation is provided at the facility, the fire resistance is regulated by the volume of water supplied per square meter.
Advantages of fire-resistant barriers for conveyor openings
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certified fire-resistant barriers of conveyor openings, instructions are attached;
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real tests of MBA products and a lot of projects implemented by us;
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own installation teams with extensive experience at various facilities, including facilities of national importance;
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the use of European non-combustible fabrics and other materials;
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the use of various mounting methods and various directions of movement of the system: longitudinal, transverse and even rotating;
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installation of barriers on various types of openings and conveyor designs;
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structural elements of fire barriers of conveyor openings from the manufacturer MVA can be ordered in any color according to RAL or in "stainless steel";
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the installation of the fire-resistant structure is carried out in a short time, which will not disrupt the production process of the enterprise;
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The guarantee of the MBA production company for conveyor barriers can be extended up to 5 years at the conclusion of a service contract.
Where to install
Objects requiring the installation of fire-resistant barriers of conveyor openings can be both large and very small. Various business lines and principles of conveyor belt movement. For example, fire protection may be required by an airport for a belt feeding luggage to a terminal, the production of medicines or food, a poultry farm or the production of metal products. A wide variety of conveyor openings complicates the process of selecting and installing fire-resistant barriers, but the experience of our specialists and modern production methods are always at your disposal.