Area metal detector DMP

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Area metal detector DMP

The DMP type area metal detector is designed to detect ferrous and non-ferrous metals in piece goods or bulk materials up to 200 mm high.  The DMP detector protects process machines against damage caused by metal contamination, prevents production downtime and ensures product quality. It is also used as an additional level of protection after the magnetic separator.

The DMP plate metal detector is reliable, easy to use and designed for continuous operation. The DMP detector is characterized by high metal detection sensitivity, but its precision decreases with the distance from its surface. The metal detector's design allows for simple integration with an existing production line and conveyor system.

Performance features of the area metal detector

  • Custom-made area metal detector according to individual requirements.
  • Robust and durable design for continuous operation 24/7 under difficult working conditions.
  • Optimal detection of ferrous and non-ferrous metals as well as stainless steel in products up to 200 mm high.
  • High scanning sensitivity across the entire width of the conveyor belt.
  • Simple installation on the conveyor structure under the belt.
  • Adaptable to all types of belt conveyors.
  • Working width of the metal detector up to 2800 mm.
  • High resistance to vibration, shocks, and temperature fluctuations.
  • Operating temperature up to 80°C.
  • Intuitive operation using a membrane keyboard.
  • Electronic adjustment of scanning sensitivity.
  • Automatic teach-in mode (Auto-Set) to mask out intrinsic conductivity of products and environmental influence.
  • Memory for 10 different products.

Applications of the plate metal detector

  • Detection of metal contaminants in mining ore: limestone, basalt, hard and brown coal.
  • Protection of processing machines such as crushers, shredders, mills and screens.
  • Detection of metals at various stages of production of cement, limestone flour and construction mixtures.
  • Metal detection at coaling stations in power plants and heating plants.
  • Metal detection at biomass and alternative fuel unloading and feeding stations.
  • Testing of rubber ribbon in the production process of car tires.
  • Detection of metals in wood chips and shavings in chipboard production installations.
  • Detecting metal in cullet to ensure 100% purity of the furnace feedstock.
  • Metal detection in plastics - protection of extruders and calenders.
  • Metal detection in waste recycling processes.
  • Testing of agricultural produce at reception installations in processing plants (potatoes, sugar beets, cereals).
  • Testing of fruit sent to cold stores and processing plants.
  • Inspection of feed mixtures.

The DMP area metal detector is widely used in industry, provides the highest sensitivity of detection of metal contaminants and guarantees the purity of the processed product.


 

DMP metal detector during operation

Versions of the area metal detector

  • DMP-IP65 type metal detector
    Dustproof and rainproof design.
  • DMP-EX type explosion-proof detector
    Manufactured in compliance with the ATEX directive and certified by a notified body.


DMP metal detector accessories

  • Optical and acoustic signal system.
  • Digital incident counter.
  • Belt conveyor control systems (belt stopping or reversing).
  • Detected metal marking unit (sand bag dropping device or paint spray device).
  • Electronic marking device with the display of the metal position on the conveyor belt (multiple marking).

Working principle of the area metal detector

The tested product (bulk or bulk) transported on a belt conveyor moves over the detector installed under the belt. The detector creates a high-frequency electromagnetic field that covers the entire width of the conveyor belt. The electromagnetic field generated by the transmitting coil induces a certain signal in the receiving coil. The metal contained in the product deforms the electromagnetic field lines generated by the transmitting coil, thereby changing the amplitude and phase of the signal induced in the receiving coil. The received signal is analyzed by the detector's electronic system and converted into a metal detection signal. The metal detector detects iron and its alloys, including stainless steel and acid-resistant steel, and non-ferrous metals such as aluminium, copper, brass, zinc, lead, silver, etc. The scanning sensitivity is adjusted using a digital control unit.

Why choose our plate metal detectors?

DMP plate metal detectors are designed to inspect bulk products with a layer thickness of up to 200 mm and transport speeds of up to 8 m/s. The detectors are available with detection widths from 300 to 2800 mm, allowing adaptation to most existing belt conveyors, chutes or vibrating feeders. A short metal-free zone allows you to save time and space for installation on an existing installation, which also translates into low investment costs. Due to their single-body construction, they provide high resistance to vibrations, shocks and temperature fluctuations. DMP plate detectors can be equipped with interfaces enabling communication in technological networks. This allows you to save time by communicating with an individual device and monitoring work in real time. Factory certificates and approvals, which the customer receives upon request, are solid arguments during internal and external audits.

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