阅读说明：本技术 一种高炉烘炉方法 (A kind of blast oven method ) 是由 李秀峰 耿君臣 陈正林 于 2019-09-20 设计创作，主要内容包括：本发明公开一种高炉烘炉方法,采用热风加热炉体；热风从进风管进入,通过立管直接吹向炉底；经过炉底折返的热风分成两部分：一部分热风直接往炉顶去,上升到导风管上面的分流板处,由于受分流板的阻滞,只能从分流板的边缘与炉墙之间的空隙上升,而导风板对流出的热风进行导向,保证以倾斜的角度吹向炉体,避免过于集中,造成炉体的局部温度过高,达到对炉墙耐材的均匀烘烤；另一部分从炉底盘管下方的进风口进入盘管,从出风口流出后沿着排气管上升至铁口排气管,后外排,对铁口区域耐材烘烤。本发明的优点是：有效地解决了烘炉温度不均,及炉底炭砖细缝现象,圆周温差降低至3℃以内。(The present invention discloses a kind of blast oven method, using Hot-blast Heating furnace body；Hot wind enters from blast pipe, directly blows to furnace bottom by standpipe；Be divided into two parts by the hot wind that furnace bottom is turned back: a part of hot wind is directly gone toward furnace roof, it rises at the flow distribution plate above guide duct, due to the retardance by flow distribution plate, it can only rise from the gap between the edge and furnace wall of flow distribution plate, and wind deflector is oriented to the hot wind of outflow, guarantee blows to furnace body at an oblique angle, avoids excessively concentrating, it causes the local temperature of furnace body excessively high, reaches the uniform baking to the resistance to material of furnace wall；Another part enters coil pipe from the air inlet below furnace bottom coil pipe, rises to iron mouth exhaust pipe along exhaust pipe after air outlet outflow, and rear outlet toasts the resistance to material in iron mouth region domain.The invention has the advantages that efficiently solving, oven drying temperature is uneven and furnace bottom brick fuel fine crack phenomenon, the circumference temperature difference are reduced within 3 DEG C.)

1. a kind of blast oven method, it is characterised in that: use Hot-blast Heating furnace body；Hot wind enters from blast pipe, passes through standpipe Directly blow to furnace bottom；Be divided into two parts by the hot wind that furnace bottom is turned back: a part of hot wind is directly gone toward furnace roof, rises to guide duct It at flow distribution plate above, due to the retardance by flow distribution plate, can only rise from the gap between the edge and furnace wall of flow distribution plate, and lead Aerofoil is oriented to the hot wind of outflow, and guarantee blows to furnace body at an oblique angle, avoids excessively concentrating, causes the part of furnace body Temperature is excessively high, reaches the uniform baking to the resistance to material of furnace wall；Another part enters coil pipe from the air inlet below furnace bottom coil pipe, from out Iron mouth exhaust pipe is risen to along exhaust pipe after the outflow of air port, rear outlet toasts the resistance to material in iron mouth region domain.

2. blast oven method according to claim 1, it is characterised in that: the furnace drying device of use is as follows:

Including blast pipe, standpipe and coil pipe, the blast pipe is connected with hot air source, and blast pipe is connected with standpipe, the lower section of standpipe Outside is fixed with bracket, also sets up flow distribution plate on standpipe, is circular ontology among the flow distribution plate, the ontology and furnace chamber Multiple groups wind deflector is set between inside；The bottom of furnace body, including inner coil pipe and outer coil pipe, inner coil pipe and external disk is arranged in the coil pipe It is connected between pipe by conduit；Air inlet hole is respectively provided with below inner coil pipe and outer coil pipe, outer coil pipe is corresponding with the iron mouth of furnace body, and outer Exhaust vent is arranged in the top of coil pipe；The inner coil pipe and outer coil pipe are octagon；Height of the wind deflector close to furnace body Greater than the height close to ontology.

Technical field

The present invention relates to metallurgical technology field, specifically a kind of furnace drying method.

Background technique

Blast furnace is the large scale equipment of a production molten iron, and a series of physical chemistry under high-temperature high-pressure state inside occurs Reaction, so needing a large amount of high-temperature and high-presure resistent material protection furnace shell.Since the resistance to material newly replaced contains large quantity of moisture in it, So just needing to toast it, purpose:

(1) evaporate the moisture of blast furnace fireproof material masonry slowly, and sufficiently heated, the consolidation for improving liner is strong Degree.

(2) so that the resistance to material of cupola well is gradually heated up pre-expansion, the closely knit gap of mutual extrusion prevents resistance to material uneven fast after operation Speed is expanded and is cracked, and leaves hidden danger.

Previous blast oven device is that guide duct is mounted directly by air port, and hot wind directly blows to furnace bottom, then turn back to Shaft is finally discharged from furnace roof.There is the heating unevenness to furnace bottom brick fuel and furnace lining, the circumference temperature difference has reached 36 DEG C, segregation It is larger, during causing the blow-on after baker, there is furnace lining to fall off, phenomena such as furnace bottom brick fuel thermal expansion unevenness generates fine crack, seriously Affect the service life of blast furnace.

Summary of the invention

In order to solve the above technical problems, the object of the present invention is to provide a kind of blast oven methods, using hot-blast heater Body；Hot wind enters from blast pipe, directly blows to furnace bottom by standpipe；It is divided into two parts by the hot wind that furnace bottom is turned back: a part Hot wind is directly gone toward furnace roof, is risen at the flow distribution plate above guide duct, can only be from flow distribution plate due to the retardance by flow distribution plate Gap between edge and furnace wall rises, and wind deflector is oriented to the hot wind of outflow, and guarantee blows to furnace at an oblique angle Body avoids excessively concentrating, causes the local temperature of furnace body excessively high, reaches the uniform baking to the resistance to material of furnace wall；Another part is from furnace Air inlet below bottom coil enters coil pipe, rises to iron mouth exhaust pipe along exhaust pipe after air outlet outflow, rear outlet is right The resistance to material baking in iron mouth region domain.

The furnace drying device of use is as follows:

Including blast pipe, standpipe and coil pipe, the blast pipe is connected with hot air source, and blast pipe is connected with standpipe, standpipe Lower outer is fixed with bracket, and flow distribution plate is also set up on standpipe, is circular ontology, the ontology and furnace among the flow distribution plate Multiple groups wind deflector is set between the inside of chamber；The coil pipe is arranged in the bottom of furnace body, including inner coil pipe and outer coil pipe, inner coil pipe and It is connected between outer coil pipe by conduit；Air inlet hole is respectively provided with below inner coil pipe and outer coil pipe, outer coil pipe is corresponding with the iron mouth of furnace body, And exhaust vent is arranged in the top of outer coil pipe；The inner coil pipe and outer coil pipe are octagon；The wind deflector is close to furnace body Height is greater than the height close to ontology.

The invention has the advantages that effective solution oven drying temperature is uneven and furnace bottom brick fuel fine crack phenomenon.Circumference temperature difference drop Down within 3 DEG C.

Detailed description of the invention

Fig. 1 is the structural diagram of the present invention；

Fig. 2 is coil arrangement schematic diagram；

Fig. 3 is coil pipe schematic cross-section；

Fig. 4 is wind deflector structure schematic diagram；

Fig. 5 is the connection schematic diagram of flow distribution plate and furnace body.

Specific embodiment

The present invention is illustrated with reference to the accompanying drawing, as shown, the present invention includes blast pipe 3, standpipe 5 and coil pipe, institute It states blast pipe 3 to connect with hot air source, blast pipe 3 and standpipe 5 connect, and the lower outer and bracket 6 of standpipe 5 are fixed, on standpipe 5 also Flow distribution plate is set, is circular ontology 12 among the flow distribution plate, multiple groups wind-guiding is set between the ontology 12 and the inside of furnace chamber Plate 13；The bottom of furnace body, including inner coil pipe 9 and outer coil pipe 8 is arranged in the coil pipe, passes through conduit between inner coil pipe 9 and outer coil pipe 8 10 connections, the lower section of coil pipe are paved by refractory brick, it is ensured that refractory brick will not stop air inlet；Under inner coil pipe 9 and outer coil pipe 8 Side is respectively provided with air inlet hole 11, and outer coil pipe is corresponding with the iron mouth region domain 2 of furnace body 1, and exhaust vent 14 is arranged in the top of outer coil pipe.

The inner coil pipe and outer coil pipe are octagon.

The wind deflector is greater than the height close to ontology close to the height of furnace body.

The principle of the present invention:

1, hot wind enters from blast pipe, directly blows to furnace bottom by standpipe.

2, it is divided into two parts by the hot wind that furnace bottom is turned back:

(1) a part of hot wind is directly gone toward furnace roof, is risen at the flow distribution plate above guide duct, due to the resistance by flow distribution plate It is stagnant, can only rise from the gap between the edge and furnace wall of flow distribution plate, and wind deflector is oriented to the hot wind of outflow, guarantee with Inclined angle blows to furnace body, avoids excessively concentrating, causes the local temperature of furnace body excessively high, reaches the uniform baking to the resistance to material of furnace wall It is roasting.

(2) another part enters coil pipe from the air inlet below furnace bottom coil pipe, along on exhaust pipe after air outlet outflow Iron mouth exhaust pipe is risen to, rear outlet toasts the resistance to material in iron mouth region domain.

By comparative test, after baker of the present invention, the gap between refractory brick is decreased to 0.5-1mm by 3-4mm.