Internal Combustion Model ZGH
ZGH combustion system is designed to burn fuels of lower moisture content (max. 40%) including pellets, as well as contaminated with MDF resins. Heavy refractory lining assures high combustion temperature resulting in complete combustion of unwanted chemicals.
ZGH systems consist of following elements:
-Water boiler and dual pass heat exchanger located above combustion space;
-Refractory furnace with thermal insulation;
-Fuel feeding system;
-Fire suppression system;
-Primary and secondary air blowers;
An advantage of such design is a compact structure ( the heat exchanger is placed directly above furnace) and a simplified service. The result of the design allows for smaller area of installation. A reliable and proved construction is based on 50 years- experiences of company in the field of manufacturing boilers and furnaces.
New Horizon offers a wide range of related devices as; silos of up to 250 m3 capacity with automatic selecting discharge auger conveyors, free standing steel chimneys, hydraulic operated live floors, and ash cyclones improving exhaust quality.
ZGH Specification Sheet –2.7MB, 1 page
The dual pass heat exchanger (p. 1) – External insulated sheet metal work(p. 2) The boiler base is made of water jacket housing lined with a heat resistant refractory. The combustion chamber consists of a double layer, inside which there are air channels to control outer layer temperature. The high temperature refractory assures correct combustion temperature which results in low emissions of particulates as well enabling to complete burn MDF resin if contained in the fuel. At the lower part of the combustion chamber there are the grates where primary air is injected. The fuel hopper (p. 3) with auger delivers fuel to combustion chamber. Optional can be used with different system with higher capacity as shown in PDF drawings. The ZGH is recommended to work with a ash/smoke cyclone (p. 4) with a variable speed controller adjusting amount of draft.
Every boiler is protected against burning back through the auger with sensor controlled fire suppression installation (gravity water tank, thermostatic valve and sensor). Bigger boilers (ZGH-600 and ZGH-1000) contain chute channel (p.6) mechanically separating upper and lower feeders.
|Nominal thermal power||[kW]||110||300||600||1000|
|[BTU/h]||380K||1 MM||2 MM||3.5 MM|
|Power supply voltage||[V]||per request|
|Average heated surface||[m2]||700||1920||3900||6400|
- For fuel with nominal power, n.c.v. 17600 [kJ/kg], humidity 25 [%]