DE1966701A1 - BURNERS FOR THE OPTIONAL COMBUSTION OF CARBON DUST, GAS AND / OR OIL - Google Patents

Description

"Burner for the optional combustion of coal dust, gas and / or Oil "The invention relates to a burner for the optional connection of coal dust, Gas and / or oil with means for installing and removing the burner.

In the known burners, it is common that the expansion by means of known Ilebezeuge or the like. Or via specially designed expansion devices.

The invention is based on the object, the burner fast @ and easy to replace so that the operation of the steam generator is affected as little as possible Furthermore, the same removal device should be used for each burner know to keep the warehousing and repair costs within reasonable limits keep.

I) ieqe object is achieved according to the invention in that di each racer adapted device is arranged interchangeably on the burner air box. Over a The individual burner inserts are attached to the expansion device on the outside of the burner air box pulled out according to the invention over rollers and rails.

The advantage of the present invention is that with an easy-to-assemble device quickly removes the burner inserts from the air box can be pulled out.

Rin embodiment of the burner with the device according to the invention is shown in the drawings and is described in more detail below.

They show: FIG. 1 a schematic cross section through the entire Burner, Fig. 2 is a section according to the- in Fig-. 1 shown line II - II, Fig. 3 a .section through a baffle rod.

The mixing of the fuels required for combustion is only slightly inclined towards the burner axis on the coal dust side Dust line connection 2 favors. This causes an unconstrained abandonment of the fuel in the exit direction of the burner axis at low entry speed. by Rinbau two baffles 15 is a proportionate exposure to the rear dust ring surface 34 ensured.

A loosening of the incoming dust flow is achieved by vertical Impact rods 11 introduced to the dust direction have the most favorable immersion depth is determined by observing the formation of the flame. These rods 11 are made of thick-walled Tube manufactured, which are closed to the burner core. The baffles are like the other parts in contact with the fuel-air mixture, they are subject to wear and tear. If the pipe wall 18 of the impact bar 11 is disrupted zer, swaths occur to the outside on .. For the operating personnel, this feature is a sure sign of the need for Checking and checking the inside of the burner.

The Dra.llringe 20 for initiating the drifting movement of the primary air in the conically narrowing air socket 6.

are attached to the outer jacket 19. The one to influence the air swirl The required amount of non-twisted air passes through the annular channel 7 with the adjusting flap 23 in the air nozzle designed as a mixing chamber 6. The overall height of the burner is reduced compared to the dimensions that are in the case of the core air connection outside the burner air box 1, the core air tube 3 with core air adjustment flap 24 can be removed, and This enables controls and repairs of the outer coal dust jacket 25 will. The connection head 26 of the core air pipe 3 is designed so that an oil burner 4 or gas nozzles 27 or both can be installed together. The gas nozzles are inserted into a gas chamber 5 which is welded to the core air tube 3. the gas-electric pilot burners 28 required for the oil burners and the for this purpose Monitoring systems are also required for the gas burner with gas nozzles 27 usable.

The cooling pipe inlet and outlet lines 29, 30 of the two inner cooling coils 31, 32 are protected from aggressive dust in a pocket 33 of the 2teubschachtes 34. The lines 35 to the outer cooling coil 9 go through the connecting flange 8 of the conical air connection 6. All lines are inside the burner air box 1 connected to the distributor 10. You are therefore with repairs that become necessary Easily accessible, whereby they are separated for the removal of burner parts and later again can be welded. The summary of all for the operation of the burner required adjustment flaps 23 and 24 and the cooling manifold 10 within of the burner air box 1- saves the insulation of these parts that-so far outside of the burner. This results in lower heat losses, and the high insolation costs for the aforementioned parts will be saved.

A removable removal device is used to remove the burner inserts 12 attached to the burner air box 1, which allows axial displacement via rollers 13 and rails 14 guaranteed regardless of the installation position, i.e. this device 12 can be used for vertical and horizontal operation.

Claims (1)

Claim to protection Burners for the optional combustion of coal dust, gas and / or Oil with means for installing and removing the burner, that is to say c h n e t that there is an exchangeable removal device (12) on the burner air box (1) for different types of burner-is arranged, and the burner over by means of rollers (13) and rails (14) of the removal device (12) is movably arranged.