SU894300A1 - Shaft furnace beam-type multinozzle burner - Google Patents

Description

(54) BEAM MULTI-FIRE BURNER

The invention relates to the building materials industry and can be used in devices for supplying gas and oxygen-enriched air to shaft lime kilns.

Gas burner devices for burning gas fuel are known.

A well-known multi-spindle beam burner of a shaft furnace, containing a water-cooled casing with tubular collectors placed therein with nozzles for supplying gas and air 1.

Closest to the invention to the technical essence and the achieved result is the beam multi-burner burner for a shaft furnace, containing a water-cooled casing with cylindrical housings and collectors with gas and air nozzles, water inlet and outlet elements. In such burners, air from two sides under a regulating angle is fed into the flow of gaseous fuel 2.

With low gas pressure, the change in pressure and direction of air flow. MINE FURNACE

reduce the activity of the combustion gas mixture.

For furnaces operating with low gas pressure and variable conditions, the known beam multi-burner is economically unsuitable.

The aim of the invention is to intensify combustion and reduce energy costs.

This goal is achieved by the fact that in a beam multi-nozzle burner of a boring furnace containing a water-cooled casing,

10 cylindrical bodies with nozzles located in the casing and tubular air and gas manifolds with nozzles for supplying air and gas placed in cases with axial clearance, nozzles of the cylindrical body of the air collector fitted with nozzles installed to form adjustable annular gaps inclined relative to the air collector nozzles axial clearances at an angle of 40-45 °.

Claims (2)

In order to improve the combustion process, in the 20 burner described, the nozzles of the cylindrical air collector body are equipped with nozzles and form an adjustable gap with air nozzles through which the oxygen is regulated into the air flow. FIG. 1 depicts a beam burner, section; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows the node I in FIG. one; in fig. 4 — node II in FIG. 2. Beam multisink torch contains a casing 1 of triangular shape in cross section with rounded corners. In the upper part of the casing from the ends of the installed pipe inlet 2 and outlet 3 of water. In the lower part of the casing, fittings 4 are located at both ends for draining water during the flushing of the water-cooled cavity. In the center of the casing 1 is attached to the end flanges of the cylindrical body 5 with nozzles 6 and nozzles 7 and 8. The nozzles 6 at the outlet are equipped with nozzles 9. Inside the cylindrical body 5 are inserted the air manifold 10 with nozzles 11. The free ends of the nozzle 7 are fitted with flanges 12, and the ends of the collector 10 are discharged through the nozzle 7 and are provided with flanges 13. Gaskets are laid between the flanges 12 and 13, the set of which adjusts the position of the air collector 10 inside the cylindrical body 5, providing the size of the annular gap to introduce oxygen into the air flow ear. Below the cylindrical body 5, similar cylindrical bodies 14 with nozzles 15 and nozzles 16 for inserting furnace flue gases into the furnace are symmetrically installed and fixed. Gas manifolds 17 with nozzles 18 and nozzles 19 are inserted inside the housings 14. A multi-arc beam burner with adjustable oxygen supply to the air flow works as follows. Air is supplied through the manifold 10 to the nozzles 11. Parallel to the air flow through the cavities of the cylindrical body 5 and nozzles 6 oxygen is supplied to the air flow through the annular gap a regulated by the position of the air manifold 10 in the cylindrical body 5 using a set of gaskets between the flanges 12 and 13. Coke oven the gas through the manifolds 17 and the nozzles 18 is fed into the furnace in two parallel streams, and the exhaust furnace gases. taken after the exhauster using a fan, through the cavities of the cylindrical housings 14 and the nozzles 15 enter the furnace to dilute the coke oven gas. The volumes of air, coke oven gas and furnace gas exhaust supplied to the burner are regulated by throttles located in the pipelines in front of the burner. Water for cooling the beam enters the cavity through the pipe 2 and is discharged from the cavity through the pipe 3. During repair of the furnace, the burner is inspected and rinsed through fitting 4. Setting the gas and air collectors into individual cylindrical bodies with the formation of cavities provides gas to the nozzles of the gas collectors furnace gases to dilute the gas and produce gaseous fuels, the combustion of which creates a predetermined firing mode. The supply of oxygen to the air stream improves the combustion process and allows the regulation of the size of the annular gap to supply the optimal amount of oxygen, ensuring the mixing of the components and the complete combustion of the gaseous fuel. The invention of the beam multi-burner furnace furnace, containing a water-cooled casing, cylindrical bodies located in the casing with nozzles and tubular air and gas collectors with air and gas nozzles placed in cases with axial clearance for the purpose of intensification burning and reducing energy costs, the nozzles of the cylindrical air manifold housing are fitted with nozzles installed to form adjustable annular gaps with the air collector nozzles, onnyh relative axial clearance angle of 40-45 °. Sources of information taken into account in the examination 1. USSR author's certificate number 406091, cl. F 27 B 1/00, 1972. 2. USSR author's certificate number 576492, cl. F 27 B 1/00 1976. 6 n gC. sixteen 12 S