DCS General Technical description

The DCS was designed and built by the engineer Domenico Tanfoglio in 1980 and patented in 1981. At the time, it was a “revolutionary discovery” for many companies that had to dispose of waste. Today the DCS has a proven and innovative system that allows a controlled molecular disintegration of the solid fuel and a complete stoichiometric combustion, which guarantees emissions far below the limits of law.

Consider, for example, purchase companies that every year have a very high cost for the waste management and another burden related to the acquisition of fossil fuel, which moreover cause irreversible damage to the planet.

The DCS transforms all types of material with no apparent value, i.e. all the processing waste of organic nature, such as wood, tires, plastic, textile material and anything else, including heterogeneous coupled waste, that are difficult and expensive to separate and differentiate. Whatever the input material, the DCS produces very high amounts of clean thermal energy.

“Clean” because the unique characteristics of the combustion chamber guarantee the complete oxidation of the fuel, so that there isn’t production of carbon monoxide (CO); farther more, our special fumes cleaning system (Hydraulic Grid Filter) is able to capture up to nanoparticles of particulate matter carried by the flue gas.

The DCS is an automatic burner fed with organic solid fuel of any kind, e.g. vegetable and animal origin biomass, such as wood, agricultural and agri-food products, polymers, refuse-derived fuel, paper, waste tires and textile industry.

It’s designed to collaborate with water boilers and hot air, steam boilers and thermal oil heaters, heat exchangers, heaters recovery and in direct contact for processing heat. It is also the solution for existing boilers, as an alternative to burners fuelled with hydrocarbons, methane gas, propane and LPG.

The name is derived from the unique ability to bring the molecular decomposition of long complex chains that characterize solid fuels, in order to use the entire fuel calorific value and minimize the amount of ash produced.

The burner works at stoichiometric combustion conditions thanks to a dedicated carburettor and oxygen control system, therefore respecting the emission limits imposed by local laws.

The ashes are automatically removed with a system equipped with augers and moving bed.

The DCS includes an easy system to modulate power. The burner can cooperate in a direct way with temperature sensors on utilities and automatically adjust the load.

Thanks to an Electrical Control Panel and a network adapter in Wi-Fi connection, the system can be monitored and controlled remotely from portable devices.

The burner is equipped with a security system which excludes the burner itself in case of overheating or lack of power supply.

  1. DCS feeder;

  2. DCS;

  3. Automatic ash cleaning;

  4. Fumes-air heat exchanger;

  5. PTLF.

Parameters of the solid fuel required

The material before being inserted in the DCS has to be shredded in order to ensure the mechanical transport.

Moreover, despite the DCS is able to operate with very high humidity materials, suggest the limit values, beyond which it is recommended that a drying process.

DCS – SCHEME

1 – AUTOMATIC OPERATION

  • The material is loaded in an automatic way and the whole system is controlled by a PLC.

2 – SPECIAL COMBUSTION ROOM

  • The combustion grid ensures “ideal gasification conditions” allowing a homogeneous distribution of the material and minimizing the amount of ash, which is removed automatically.

3 – AUTOMATIC CLEANING ASH

  • The ash is removed through a cochlea system and is transported into the adjacent container.

4 – SPECIAL REFRACTORY MATERIAL

  • Firewalls allow high temperatures between 1200 and 1500°C in the combustion room.

5 – EASY AND SAFE INSPECTION

  • The DCS has a desk and a cover for monitoring operations, which are very easy to open.

6 – ADJUSTABLE HEIGHT

  • The height adjustment system allows easy connection even to existing boilers.

DCS Loader

The DCS loader consists of a cylindrical reservoir equipped with maximum and minimum level sensors that control the input of material in the DCS burner. The loader is equipped by a steel auger which transport the material in the combustion chamber. Thanks to this technology we haven’t a mass of material to burn but a flow of solid material that aid subsequent gasification and combustion.

DCS combustion chamber

The DCS is a special type of fixed grid furnace. The bottom of the chamber consists of a steel grid suitable for high temperatures on which the material is distributed homogeneously by a plow. The walls are made of refractory materials and special catalysts that allow the solid fuel gasification. The slots in the walls are designed to guarantee ideal gasification conditions, since each combustion chamber sector is communicated with the combustion air inlet, operated by a dedicated carburettor. The carburettor is equipped with inverters to control the inlet air flow, and there are also actuators that regulate the input air.

Automatic removal of ashes

The plow and auger system removes the ash and carries it into an adjacent container (or big bag). The ash collector comes with a level sensor that will indicate when it is full.

Adjustable height

The height adjustment system makes it easy to connect with pre-existing boilers.

Inspection points

The burner is equipped with numerous inspection points for ordinary monitoring and doors and lids that allow extraordinary maintenance.

Oxygen control system

The control works by adapting the oxygen supply to the fuel quality, so the boiler reaches maximum yields with minimum emission levels. The combustion chamber temperature also regulates the loading unit and the combustion air inlet.

ZrO2 Oxygen Analyzer (Zirconium Oxide)

It is based on a zirconium oxide stabilized yttrium oxide cell, measures residual oxygen in the combustion chamber, at high temperature, so that the measurement is not influenced by the indents Of air that easily occur between the combustion chamber and the chimney. The analyzer resists temperatures up to 1600 ° C and can also be used in processes with very high amounts of particulate matter while maintaining a short response time. Accurate measurement compensation at the actual process temperature, by means of the thermocouple mounted inside the probe, makes the analyser completely devoid of either Zero or Scale drift.

Automatic ignition

The burner is predisposed for the insertion of automatic ignition devices. Depending on the material being processed, there are many alternating alternatives, such as a glowing pivot device or automatic hydrocarbon ignition.

Electric panel

Siemens, Siemens (Siemens), Hardware (PLC), Siemens switchgear, Siemens switchgear, Siemens switchgear, Siemens switchgear, Siemens switchgear, Siemens switchgear, fuse switch, Siemens, ventilation grille.

Accessories

  • Double auger and stellar valve against flame flash-back.
  • Automatic material input system (controlled by inverter)
  • Auxiliary diesel burner for start and stop operations (temperatures above 850 ° C)
  • Air intake actuator
  • Oxygen analyzer with zirconium oxide
  • Automatic ash removal and double ash container with lid
  • Continuous temperature monitoring
  • Thermocouple on discharge nozzle
  • Material cochlear thermostat

Technical description of CIT CUBE

The CIT CUBE is a post-oxidation chamber, composed by special refractories that contain ionic catalysts that guarantee the complete oxidation of any unburned.

The purpose of the CIT CUBE is to oxidize, or better bi-oxidize the exhaust gasses from burners, internal combustion engines etc., characterized by a residual CO level.

The photons produced by the thermal burner flame stimulate the catalytic effect of the titanium oxides and the platinum dioxide leading to the transformation of carbon monoxide (CO) and all benzenes with inherent aromatic chains getting CO2. Thanks also to more inputs can convey more exhausted gas.

The flame and the products of combustion entering at high temperature, up to 1400° C (2192° F), leave at the same temperature, this because the hot refractory acts as a thermal flywheel. It can also be used as a point of flue gas post-treatment with ammonia or urea in for abatement of NOx systems (SNCR system).

Fumes cleaning and purification system,

with an innovative hydraulic network method of filtration

The fumes cleaning system is a filtration machine, suitable for all the gas streams carrying substances with a molecular weight greater than air. In other words, this filter captures all particles which are carried in suspension with the gas, such as particulates.

Thanks to a special water mesh system with, the smallest particles are also caught, releasing flue gas into the atmosphere without causing damage to manor nature.

In addition to particulate matter, it can entrap acid molecules and eliminate smells.

DFC

EXHAUST GASES

The fumes cleaning system takes down all particles carried in suspension by the exhaust gases, and is suitable for:

  • Exhaust gas of boilers

  • Exhaust gas of melting furnaces, food ovens, ceramic baking ovens

  • Welding fumes

  • All types of vapor

  • Paint spray booth

DFA

ACIDS FUMES

This filter for fumes containing acids or ammonia is able to capture in addition to the particles also any acidic molecules present in the gases.

It is suitable for:

  • Vapors/fumes of manure drying, various manure, inert, mud, cereals;

  • Various dehydrators;

  • Acid vapors/fumes from melting furnaces.

DFO

FUMES AND SMELLS

The fumes and odors purifier in addition to clean the fumes eliminates bad smells through a special treatment with hydrochloric acid.

DAC

SMOG

The smog treatment plant is designed to capture the urban smog.

It is also able to capture the bacteria of the atmosphe-re, making air perfectly purified.

The 4 operations phases

 

1 Dry capture step

  • The gaseous flow is sucked by a radial flow turbine and sent toward the first stadium of capture. This is the phase called “dry capture”, in which the coarsest particles are caught by a mechanical capture system and fall into a collecting drawer.

2 Hydraulic capture step

  • The tower contains a rotating shaft that drives “micro-furrowed” metallic disks. At the same time, a hydraulic pump brings water directly on the disks in rotation, which will create a hydraulic network by centrifugal effect. The hydraulic wires formed by the rotation of the disks will travel at a speed ranging from 70 to 100 m/sec, in this way no particle with a greater weight than the air, independently of its speed, can escape from the capture in the hydraulic network.

3 Water collection tank

  • The particulate matter and liquid fall into the tank, where the particulates will accumulates in a specific point of the tank, to be removed manually or in automatic mode. This is a closed-loop system, because the water which circulates is the one present in the tank, so very little water is consumed and moreover no dangerous discharge into the sewer system is required.

4 Unloading stage

  • Once released from the purification tower (and having yielded in the circuit any drops of water), the gas flow is ready to flow out into the atmosphere, if it consist of combustion fumes, or to be stored, whether it is fuel technical gas.

For any further information about the DCS, don’t hesitate to  drop us an email at info@fehufindsolutions.com