Storaging silo PSPC.14.80.60

The polygonal storage hopper with a filtering section is designed for cleaning polluted air with a capacity of 8,000 m3/h and from woodworking and furniture enterprises for the accumulation of waste in the volume of 80 m3 for further burning of solid fuel boilers. Made of galvanized panels with a thickness of 2.5-4 mm. The design of the hopper allows sawdust to be unloaded both into a big-big and onto a motor vehicle or into a hopper of a solid fuel boiler.

Principle of operation: (scheme of operation of the installation with air return)

Contaminated air containing waste particles from the production process is sucked in and transported to the plant through the duct system.
Contaminated air enters the sedimentation chamber, where heavier particles fall into the storage hopper with a volume of 80 m3, and small light particles fall on the outside of bag filters with a density of 550 gr/m2. where the external specially treated surface is delayed.
Cleaned air passes through the bag filter and returns to the production room with minimal temperature loss.
The filtering unit carries out fine filtering of polluted air, which allows to return purified air to the workshop.
The filtering unit is equipped with a pulse filter regeneration system. The pulse of compressed air is directed inside the filter to meet the flow of clean air.
During the pulse, the cotton fabric is passed over the inner metal frame of the filter and the accumulated dust is blown off the treated outer side of the filter.
Such a cleaning system allows you to ensure:

1. The working condition of the filters during the entire working time for 2-3 shifts of production without technical pauses.
2. Guarantees cleaning of filters from fine dust

Filter antistatic moisture-oil repellent

Bag filters are used for air purification in the vast majority of industrial enterprises that emit dust and gas flows into the atmosphere, such as woodworking and metallurgical plants, cement manufacturers, asphalt plants, power plants, waste incinerators, tobacco factories, and chemical plants.

Today bag filters are the most widespread effective and economic element for the filtering installations in the world.

In the vast majority of industries, bag filters consistently provide high levels of dust collection performance with the necessary hydro-mechanical resistance and reliability.

During the operation of fabric filters, a gradual layering of dust occurs in the pores of the filter material, as well as on its surface. With an increase in the volume of dust, the hydromechanical resistance of the material also increases. As a result, clogging of the pores and the filter surface, the filter performance will decrease and therefore the filter will not be able to pass gas. Therefore, in order for the filter to be in working condition, it is necessary to regularly remove dust from the pores of the filter material.

The process of dumping part of the dust layer in fabric filters is called regeneration, thus restoring the initial properties of the filter material.

Filter block cleaning system

The filter block cleaning system includes a receiver designed to accumulate the required volume of air, impulse valves of a European manufacturer. The valves are located above each row of filters and are activated after a period of time set by the controller, which is set depending on the fraction of dust deposited on the filters. After turning off the installation, due to the volume of air accumulated in the receiver, a cleaning cycle of all filters takes place. The entire system ensures filter cleaning and keeps the filter in working condition throughout the working hours.

Security systems:

The unit is equipped with three passive safety systems:

Blast panels act as overpressure relief devices and constitute an ATEX protection system. Necessary to prevent and reduce the risk of explosions, in accordance with the requirements of Directive 94/9/EC – ATEX

Blast Panels – This safety system consists of a rectangular-shaped composite membrane that consists of one or more metal sections with through slots of the sealing element. Mounted between rectangular flanges with a smooth sealing surface. Used in aspiration systems to protect bag filters. Works in tension, pressure acts on a flat or concave surface, excellent for working at the lowest pressure and static loads. Works in thousandths of a second without the formation of metal fragments.

– The fire extinguishing system consists of a dry pipe with a number of nozzles located in the filter unit. The system is connected to the company’s water supply system. In case of detection of ignition, smoke in the installation, it is necessary to open the water supply valve and the nozzles located inside the filter unit will supply water and extinguish the combustion inside the installation.

– fire-retardant with a fusible insert.

The valve prevents fire from entering the production room through the air return system in case of an emergency. When the temperature in the flow of clean air entering the room after filtration rises to 70 ° C due to the return of air, a mechanism is activated that closes the valve and prevents smoke or fire from entering the production room.

Hopper unloading system (cone)

The system for unloading from the storage hopper is based on the principle of turning sawdust and feeding material into the unloading window. This design provides wear resistance and durability of the tedding system. During operation, sawdust falls to the bottom of the hopper and is unloaded down due to the cone and the design of the tedding system, 100% unloading of material is ensured without hanging zones and waste caking zones. This ensures a uniform supply of material to the dispenser valve, which is especially important for further transportation of waste by pneumatic transport.

Installation maintenance

The design of the PSPC.14.80.60 accumulator hopper is designed in such a way that when servicing the cleaning system or the filtering unit, all work is carried out in a clean area. For safe work at height, the installation is equipped with stairs and platforms with a fence. The fans are placed on the foundation for easy maintenance.