Defender® grit classifiers are used in the second phase of pre-treatment of raw water to extract suspended solids (gravel, sand and mineral particles). The purpose of the treatment with the offered equipment is to prevent clogging of the channels and pipelines, to protect the rest of the equipment in the installation from abrasive impact and to alleviate the load in the operation of the next treatment facilities. The grit classifiers consist of a chamber for entering the raw water (made of polyester, reinforced with fibreglass (FRP) or stainless steel) and a hollow chute with an installed screw that captures, retains and transports solid particles. Advantages of the offered equipment are its easy cleaning and maintenance, convenience for inspection through a hatch, design preventing problems with congestion and air tightness and high efficiency (removes up to 97% of sand particles up to a diameter of 0.15 - 0.2 mm).
Defender® screw conveyor are made of stainless steel, which consist of housing in chute form and a screw built into it. They are used in many sectors and activities such as measuring and dosing, storage and transportation. The offered conveyors are distinguished by a design excluding the presence of an internal central half-pipe, which helps […]
The Defender® compact pre-treatment plant is a complex equipment that allows the implementation of several processes simultaneously: straining, removal of sand and grease. These facilities include a channel screen conveyors or compacting auger, 2 pcs. screw conveyor (longitudinal and inclined), sand and grease removal bath-tub and scraper system. Once the solids have been filtered, compacted and removed, the equipment is equipped with a fine aeration system located at the bottom of the bathtub, which allows the fat to rise to the surface. The grease is then removed by a scraper trapping system located at the end of the sand and grease removal bath-tub, which transports it to the edge of it from where it is gravitationally extracted by pipe.
The Defender® compactor screw is an equipment that can perform several functions in the process of removing solids from water in urban and industrial wastewater treatment plants, incl. transportation, dehydration (reduction of moisture content of separated solids) and compaction (reduction of their volume). Advantages of the offered equipment are its easy installation, high performance, high […]
