DE3002860A1 - Prodn. and use of finely divided coal - as substitute for heating oil and other fuels - Google Patents

Abstract

The following are claimed: (a) the large-scale prodn. of finely divided coal and its use as a substitute for heating oil, wherein the coal is used as a non-polluting smokeless fuel in forced-air burners for central heating boilers and hot- air systems and is stored and distributed in a closed system of stationary bunkers, bunker transporters (rail, road, water) and pipelines, and (b) the large-scale prodn. of finely divided coal as a substitute for liq. fuels. The coal is opt. used as a fuel for ships' boilers (steam turbine ships) and for suitable jet or gas turbine "constructions" (as a substitute for kerosene).

Description

Description:

Title: DUST CHARCOAL AS A HEATING OIL SUBSTITUTE Area of application: The process is particularly suitable for initial equipping of private and commercial buildings with dust = coal-fired heating systems, but also retrofitting of systems previously operated with oil possible.

Purpose: As far as I know, the procedure is so far in practice or has not yet been used for experimental purposes. 8 is basically based on the same thing Same principle as the normal oil central heating, however the modifications are necessary decisive innovations Powdered fuel suitable burners and boilers (with exhaust filter) -3.Modified Distribution = system. - The fuel is produced in coal mills. Stone ~ coal lump are ground to a fine powder, then the pulverized coal is placed in bunker silos The bulk silos available in coal mines can possibly be used for this of the loading facilities are used, soSern no additional Plants need to be created. Only the pouring openings must have hose connections and pumps are provided (same technology as for cement silo operation).

It can be loaded into railroad silo wagons as well as into truck silos (Fig.1) Loading on railway wagons (possibly also river boats) is for the Long-distance transport to larger distribution centers in remote consumer regions Recommended. Large consumers can be supplied with semitrailers (20-30t) from the distribution warehouse will. For small consumers, correspondingly smaller cars. The oil tanker becomes a ### der 3taubsilowagen. At the consumer, the dust collector is inserted through hoses into the Reservoir = silo pumped. As with the fuel oil dispensing, the complete dirt can be carried out. (Fig. 2) The coal dust is extracted from the silo in an air stream through a jet nozzle into the combustion chamber blown (Fig.3u.4). The dust mist is mixed with air and swirled accordingly ignited and then burns in a continuous jet of flame.

heating a boiler in the usual way.

The design of the combustion chamber ensures complete combustion of the combustible components of the coal. The o-8% non-combustible components (mountains) can Can be easily removed from the exhaust gas with a dust filter, as it is very low in sulfur If coal is used, the air pollution is even lower than with certain ones The burning time is controlled by a thermostat. If boiler systems are operated by Oil can be converted to dust coal because of the slightly lower specific calorific value longer firing intervals may be necessary.

State of the art with references: The idea composes in some Share existing techniques from other areas that are known to everyone. The compilation to your: the procedure described here is, however, new to my pillow. Suggestions: Use of hard coal steam eco motifs, steam ships and coal as a house = fire burning of coal in power plants (filtered exhaust gases) - transport of powdered Zem # ntin Silo wagons - grinding coke and steam coal in mills - cement mills - S ## jet blowers (Blowing through a fine-grained material with air pressure through a jet nozzle) -Ignition a fuel mixture in a Druckluttz burner (oil heating) criticism of the state of technology: Apart from large-scale consumer technologies (power plants), there was incineration of coal so far with strong smoke development and thus poor utilization of the specific.

possible calorific value. Transport and combustion were also possible of coal lumps or nut coal is only possible with a great deal of mechanical effort Arduous work and the resulting pollution of the environment was bloody Can only be avoided by switching to fuel-dependent heating oil. Consumption of However, oil is becoming an increasing burden due to rising prices and a shortage of economics and consumers.

Task: Updating the use of coal by medium and small consumers through problem-free and dirt-free handling of the particular material and through residue-free, smoke-free and environmentally friendly incineration of the combustible components in the "state of the art" procedure to the combustion of pulverized coal enable.

Further embodiment of the invention: If necessary, for cost reasons and oil supply reasons (bottlenecks) also include the use of pulverized coal in ship boilers make sense.

Unless in the case of very large ship engines like in coal power = factory operations must be proceeded.

The use of dust koh == cannot be ruled out le in specially designed jet or gas turbines. It would only have to be used here instead Kerosene, fine-grained, high-quality dust coal (e.g. t anthracite) in the combustion chambers be blown in.

Such a solution would be particularly suitable for medium-sized generator systems conceivable.

Achievable benefits: Reduction of fuel costs for the consumer. (The cost example was calculated during the preparatory work). Release of heating oil for a diesel car market that is highly expandable in the short term Sparungon. Reduction in oil imports. Huge foreign exchange savings. Relief the national economy. Lower susceptibility to crises in the energy supply. reduction the political @rpressibility of the industrialized countries.

Claims (1)

Patent claims preamble: 1. Large-scale production of pulverized coal (analysis fine) from hard coal and its use as a substitute for heating oil (light). Characteristic part: characterized in that the dust coal as dirt-free and smoke-free fuel in Ge. Blow burners used for central heating and hot air systems Likewise, the storage and distribution in a closed system of stationary Silos, silo transport @ (rail, road, water) and hose or pipe = lines. Generic term of the dependent claim: Manufacture (large-scale) of pulverized coal made of hard coal as a substitute for liquid fuel Characteristic part of the sub-claim: characterized in that the pulverized coal is used as fuel for ship boilers (Dan turbine ships) and as fuel for suitable jet or gas turbine constructions is used (as a substitute for kerosene).