The premixed secondary fuel burner nozzle of mechanical adjustment and method
Technical field:
The present invention is specifically related to the premixed secondary fuel burner nozzle of a kind of mechanical adjustment and method, belongs to the field of combustion technology of kiln, is adapted to the burn application of refractory material.
Background technology:
Known to inventor, the domestic burner using for refractory material sintering process is diffusion type burning at present, and conventional diffusion type burning is that combustion-supporting gas and the burning of mixing limit, combustion gas limit have several shortcomings; First causes the surplus of combustion-supporting gas owing to mixing bad meeting, and the temperature that has improved smoke evacuation strengthens kiln thermal loss.Second can not fully burn combustion gas because mixing is bad has caused fuel surplus, has therefore wasted fuel.On the other hand, the burner using for refractory material sintering process is all installed with fixed position, and the burner on conventional burner has a segment distance apart from tunnel cave interior wall within the walls at the kiln of tunnel cave, just farther apart from sinter.The working method of the burner on existing designed combustion device is under thermal-radiating condition, to carry out sintering by external flame, simultaneously maximum temperature position on kiln wall not at agglomerate bodies, interior kiln wall and sinter are by radiation delivery part heat energy, it not flame direct sintering, so the crater of kiln wall is because of sintering warpage especially severe in concrete operations, in addition kiln within the walls temperature be to have wasted fuel higher than agglomerate bodies temperature.
Summary of the invention:
Object of the present invention is exactly in order to overcome above-mentioned defect, provides one can make combustion-supporting gas and combustion gas fully mix, and can make combustion-supporting gas and combustion gas rationally utilize and the high premixed secondary fuel burner nozzle of mechanical adjustment and the method for efficiency of combustion.
The present invention realizes according to following technical scheme.The premixed secondary fuel burner nozzle of described mechanical adjustment and method, it is characterized in that arranging a Gas Pipe 22, be provided with plug 17 at the front end of Gas Pipe 22, the front end of Gas Pipe 22 is near being provided with multiple gas outlets 18 on plug 17 one end, Gas Pipe 22 is provided with the second fixed support 21 near gas outlet 18 places, on the second fixed support 21, be evenly provided with multiple fumaroles 20, tail end one end of Gas Pipe 22 is provided with link dish-b26, link dish-b26 is fastenedly connected by flange plate bolt-b24 and the ring flange-b25 that is fixed on air intake duct 19 ends, air intake duct 19 is provided with time air port 23 near ring flange-b25 one end, the front end of air intake duct 19 is fastenedly connected with the tail end that links bend pipe 16, the link front end of bend pipe 16 and the tail end of mixing tube 9 are fastenedly connected, the front end of mixing tube 9 is provided with fuel burner nozzle 11, on fuel burner nozzle 11, be provided with multiple mixed gas outlets 10, mixing tube 9 is provided with the first fixed support 7 near fuel burner nozzle 11 one end, on the first fixed support 7, be evenly provided with multiple air outlet slits 8, mixing tube 9 is provided with link dish-a14 near tail end one end, on link dish-a14, be provided with flame-observing hole 15, link dish-a14 is fastenedly connected by flange plate bolt-a12 and the ring flange-a13 that is fixed on air hose 5 ends, air hose 5 is provided with main air port 6 near ring flange-a13 one end, the outside cover of air hose 5 is shaped with kiln slideway 2, kiln slideway 2 links with kiln wall 1 by the fixing link steel plate 4 use expansion bolts 3 in tail end one end, the follower head of air hose 5 is provided with tooth bar 27, dispose gear 29 with its male and female, gear 29 center is provided with motor shaft 33, motor 28 is fixed on chain connecting plate 31 by screw 30, chain connecting plate 31 is fixed on kiln wall 1 by expansion bolt 32, kiln slideway 2 length are greater than the width of kiln wall 1, kiln slideway 2 length are less than the length of air hose 5, the internal diameter of air hose 5 is greater than the external diameter of mixing tube 9, the length of air hose 5 is less than the length of mixing tube 9, the internal diameter of mixing tube 9 is the same with air intake duct 19 internal diameters, the internal diameter of air intake duct 19 is greater than the external diameter of Gas Pipe 22, the length of air intake duct 19 is less than the length of Gas Pipe 22, the external diameter of the first fixed support 7 is the same with the internal diameter of air hose 5, the internal diameter of the first fixed support 7 is the same with the external diameter of mixing tube 9, the center same level line of air outlet slit 8 intersects parallel in a direction, the external diameter of the second fixed support 21 is the same with the internal diameter of air intake duct 19, the internal diameter of the second fixed support 21 is the same with the external diameter of Gas Pipe 22, fumarole 20 center same level line intersects parallel in a direction, the external diameter of the first fixed support 7 and internal diameter are greater than external diameter and the internal diameter of the second fixed support 21, between plug 17 and fuel burner nozzle 11, there is certain distance, the diameter of plug 17 is less than the diameter of fuel burner nozzle 11, same level line same direction in mixed gas outlet 10 center tilts, the central vertical of gas outlet 18 is in the center line of Gas Pipe 22.
The premixed secondary fuel burner nozzle of mechanical adjustment of the present invention and method, that Gas Pipe is passed through in combustion gas, combustion gas is sprayed from gas outlet, combustion gas and combustion-supporting gas mix in advance at mixing tube, then make gaseous mixture spray from fuel burner nozzle, fuel burner nozzle, to flame in tunnel cave, has been realized tunnel cave to firing the sintering of thing, comprises; Air hose, mixing tube, fixed support, Gas Pipe, fuel burner nozzle.
The premixed secondary fuel burner nozzle of mechanical adjustment of the present invention and method, have and improved significantly sintering quality, and sintering velocity, can correctly meet kiln temperature constant, is implemented in refractory material sintering process.Effectively utilize the flame of fuel burner nozzle, reduce the consumption of fuel, the advantage of efficient energy-saving.
Brief description of the drawings:
Accompanying drawing 1 is the premixed secondary gas nozzle structure of mechanical adjustment figure
Wherein: 1. kiln wall, 2. kiln slideway, 3. expansion bolt, 4. link steel plate, 5. air hose, 6. main air port, 7. the first fixed support, 8. air outlet slit, 9. mixing tube, 10. mixed gas outlet, 11. fuel burner nozzles, 12. flange plate bolts-a, 13. ring flanges-a, 14. link dish-a, 15. flame-observing holes, 16. link bend pipes, 17. plugs, 18. gas outlets, 19. air intake ducts, 20. fumaroles, 21. second fixed supports, 22. gas outlets, 23. air ports, 24. flange plate bolts-b, 25. ring flanges-b, 26. link dish-b, 27. tooth bars, 28. motors, 29. gears, 30. screws, 31. chain connecting plates, 32. expansion bolts, 33. motor shafts.
Detailed description of the invention;
The premixed secondary fuel burner nozzle of type mechanical adjustment of the present invention and method detailed description of the invention as shown in Figure 1, it is characterized in that arranging a Gas Pipe 22, be provided with plug 17 at the front end of Gas Pipe 22, the front end of Gas Pipe 22 is near being provided with multiple gas outlets 18 on plug 17 one end, Gas Pipe 22 is provided with the second fixed support 21 near gas outlet 18 places, on the second fixed support 21, be evenly provided with multiple fumaroles 20, tail end one end of Gas Pipe 22 is provided with link dish-b26, link dish-b26 is fastenedly connected by flange plate bolt-b24 and the ring flange-b25 that is fixed on air intake duct 19 ends, air intake duct 19 is provided with time air port 23 near ring flange-b25 one end, the front end of air intake duct 19 is fastenedly connected with the tail end that links bend pipe 16, the link front end of bend pipe 16 and the tail end of mixing tube 9 are fastenedly connected, the front end of mixing tube 9 is provided with fuel burner nozzle 11, on fuel burner nozzle 11, be provided with multiple mixed gas outlets 10, mixing tube 9 is provided with the first fixed support 7 near fuel burner nozzle 11 one end, on the first fixed support 7, be evenly provided with multiple air outlet slits 8, mixing tube 9 is provided with link dish-a14 near tail end one end, on link dish-a14, be provided with flame-observing hole 15, link dish-a14 is fastenedly connected by flange plate bolt-a12 and the ring flange-a13 that is fixed on air hose 5 ends, air hose 5 is provided with main air port 6 near ring flange-a13 one end, the outside cover of air hose 5 is shaped with kiln slideway 2, kiln slideway 2 links with kiln wall 1 by the fixing link steel plate 4 use expansion bolts 3 in tail end one end, the follower head of air hose 5 is provided with tooth bar 27, dispose gear 29 with its male and female, gear 29 center is provided with motor shaft 33, motor 28 is fixed on chain connecting plate 31 by screw 30, chain connecting plate 31 is fixed on kiln wall 1 by expansion bolt 32, kiln kiln slideway 2 length are greater than the width of kiln wall 1, kiln slideway 2 length are less than the length of air hose 5, the internal diameter of air hose 5 is greater than the external diameter of mixing tube 9, the length of air hose 5 is less than the length of mixing tube 9, the internal diameter of mixing tube 9 is the same with air intake duct 19 internal diameters, the internal diameter of air intake duct 19 is greater than the external diameter of Gas Pipe 22, the length of air intake duct 19 is less than the length of Gas Pipe 22, the external diameter of the first fixed support 7 is the same with the internal diameter of air hose 5, the internal diameter of the first fixed support 7 is the same with the external diameter of mixing tube 9, the center same level line of air outlet slit 8 intersects parallel in a direction, the external diameter of the second fixed support 21 is the same with the internal diameter of air intake duct 19, the internal diameter of the second fixed support 21 is the same with the external diameter of Gas Pipe 22, fumarole 20 center same level line intersects parallel in a direction, the external diameter of the first fixed support 7 and internal diameter are greater than external diameter and the internal diameter of the second fixed support 21, between plug 17 and fuel burner nozzle 11, there is certain distance, the diameter of plug 17 is less than the diameter of fuel burner nozzle 11, same level line same direction in mixed gas outlet 10 center tilts, the central vertical of gas outlet 18 is in the center line of Gas Pipe 22.
In the present invention, for make fuel gas buring fully, the Gas Pipe of telling, the air hose of telling, the bridge piece of telling, the mixing tube of telling are intercommunications, tell air hose and burner hearth is communicated with.
As further implementation column of the present invention, as told in Fig. 1, the air hose of telling 5 is communicated with mixing tube 9 and in air channel, is provided with the first fixed support 7, can make like this combustion air current amount ratio regulate, make the flame combustion of fuel burner nozzle 7 abundant, flame rigidity is good, the object of minimizing pollutant emission.
As further implementation column of the present invention, as told in Fig. 1, the plug of telling and the setting that leaves certain gap between fuel burner nozzle and expand gradually of telling, thereby reach combustion gas and combustion-supporting gas can mix the object that fully can also regulate flame intensity and flame profile.
In the present invention, for fuel burner nozzle combustion flame is effectively utilized, regulating main air mouth and time air port air inflow are rationally mixed the consumption that can reduce combustion gas to combustion gas.