CN207610557U - A kind of external combustion-regenerative hot blast stove of regenerative chamber underground horizontal arrangement - Google Patents

Abstract

The utility model discloses a kind of external combustion regenerative hot blast stoves of regenerative chamber underground horizontal arrangement, include the regenerative chamber of underground horizontal arrangement, accumulation of heat room housing is concrete foundation flue, insulating, laying fireproof bricks layer from outside to inside, it is checker brick in the cavity that laying fireproof bricks layer surrounds, the beginning of accumulation of heat room housing is smoothly direct-connected by the arc cylinder type body of refractory material laying and the combustion chamber on ground, indoor top burn equipped with efficient premixed ceramic burner, combustion chamber middle section is provided with the hot-blast outlet communicated with blast furnace；The both sides of the tail end of accumulation of heat room housing are equipped with flue outlet, and the middle part of tail end is equipped with the cold air inlet to connect with cold air duct.Be conducive to improve wind-warm syndrome, extend converter life, reduces the air leak rate of air curtain of hot blast stove system, while reducing hot-blast stove manufacturing cost.

Description

A kind of external combustion-regenerative hot blast stove of regenerative chamber underground horizontal arrangement

Technical field

The utility model is related to industrial furnaces, and in particular to a kind of external combustion-heat-accumulation type hot of regenerative chamber underground horizontal arrangement Wind furnace.

Background technology

The regenerative hot blast stove of existing various types, whether internal combustion type, external-burning, top ignition, regenerative chamber are all perpendicular Directly it is arranged on ground, in the course of work of cyclic periodicity, checker brick, refractory brick will undergo the test of high-temerature creep, because And requiring its volume stability good, high temperature load croop property is excellent, high density low-porosity, is especially in middle bottom high temperature The checker brick in area, performance requirement is more harsh, in hot-blast stove life cycle back segment, it is possible that crack, it is broken, block, deformation, Phenomena such as local collapse, degradation of heat exchange performance, influence wind-warm syndrome, air quantity it is continual and steady.

Utility model content

It is taken up a large area to solve the problem of that existing regenerative hot blast stove service life is short, the utility model provides A kind of external combustion-regenerative hot blast stove of regenerative chamber underground horizontal arrangement.

The utility model adopts the following technical solution：A kind of horizontally disposed external combustion of regenerative chamber subsurface-heat accumulating type hot wind Stove, includes the regenerative chamber of underground horizontal arrangement, and accumulation of heat room housing is concrete foundation flue from outside to inside, insulating, resistance to Firebrick builds layer by laying bricks or stones, is checker brick in the cavity that laying fireproof bricks layer surrounds, the beginning of accumulation of heat room housing passes through refractory material laying Arc cylinder type body and the combustion chamber on ground it is smoothly direct-connected, burn indoor top be equipped with efficiently it is premixed ceramics combustion Burner, combustion chamber middle section are provided with the hot-blast outlet communicated with blast furnace；The both sides of the tail end of accumulation of heat room housing are equipped with flue outlet, tail The middle part at end is equipped with the cold air inlet to connect with cold air duct.

The regenerative chamber is that single regenerative chamber is arc cylinder type body, and the longitudinal section top of the structure is arch lower part It is rectangular.

Another technical solution as the utility model：The regenerative chamber is divided into A regenerative chambers and B regenerative chambers by partition wall； The arc cylinder type body is communicated with the beginning of A regenerative chambers, and A regenerative chambers tail end is communicated with B regenerative chamber tail ends, the cigarette It opens in the side at B regenerative chambers beginning road outlet；The cold air inlet is opened in the top at B regenerative chambers beginning.

The beneficial effects of the utility model are：

1, the utility model regenerative chamber entirety underground, leakproofness, thermal insulation are promoted, and heat dissipation area is small, heat waste Lose it is small, be conducive to improve the thermal efficiency, be conducive to the promotion of wind-warm syndrome and the guarantee of air quantity, it is simple in structure, construction be easy, save steel Material, construction cost are low；Combustion chamber is independently arranged on ground, and efficient premixed ceramic burner is arranged in top of combustion chamber, in advance Combustion gas, air mixture after mixed are flowed from top to bottom, and vortex convolution is generated under gravity, and combustion process tissue is reasonable, empty Gas allocation is uniform, is conducive to fully burn；Hot-blast outlet is arranged in combustion chamber middle section, conducive to combustion chamber waste heat is made full use of, Improve wind-warm syndrome.In conclusion overall structure is conducive to improve ignition temperature, suitable for high wind-warm syndrome operating mode work for a long time, combustion chamber Small, floor space is small, and steel, refractory consumption are few, and construction is easy, long lifespan, and construction cost is low.

2, the utility model combustion chamber, regenerative chamber are smoothly direct-connected using refractory material laying camber cylinder type body, High-temperature gas flowing property is good；Compared with burner base is arranged, not complicated vault construction, chamber structure is symmetrical, stress Uniformly, and under high temperature and pressure furnace shell is unsuitable for generating intergranular stress corrosion, not easy to crack.

3, the checker brick and refractory brick of lower-performance can be used in the utility model.As shown in Fig. 2, the storage of underground horizontal arrangement Hot cell is concrete foundation flue, insulating from outside to inside（Castable refractory can be used to make firm by ramming）, laying fireproof bricks layer, cigarette It is checker brick in the cavity in road, brick builds only several meters of height by laying bricks or stones, ground, the block of brick are vertically disposed to existing common furnace body It builds height to compare up to tens of rice, greatly reduces the compressive resistance to checker brick, refractory brick, high temperature load softening temperature performance Deng requirement, the utility model can also be used the brick of superior performance, can more greatly prolong the service life of hot-blast stove.

4, the checker brick of the utility model regenerative chamber both ends entrance are designed to the streamline pattern that section gradually tapers up, and are convenient for Air-flow is uniformly distributed, to make full use of the regenerative heat exchange ability of checker brick.

5, the utility model regenerative chamber can single regenerative chamber arrangement, also can Two-cuff Technique room arrangement, the heat exchange of Two-cuff Technique room more fills Point, advantageously ensure that wind-warm syndrome, while in the case of identical heating surface, regenerative chamber can arrange more shorter.But Two-cuff Technique room is tied Structure different warm areas since both sides are operated in, stress uneven heating, curtain wall structure needs design very complicated and unstable, discomfort The requirement for answering high temperature and pressure, is easily damaged, and applies in general to in the relatively low technique of temperature and pressure requirement.

Description of the drawings

External combustion-regenerative hot blast stove structural schematic diagram of the single regenerative chamber underground horizontal arrangement of Fig. 1 embodiments 1；

C-C in Fig. 2 Fig. 1 is to sectional view；

D-D in Fig. 3 Fig. 1 is to sectional view；

External combustion-regenerative hot blast stove structural schematic diagram of 2 Two-cuff Technique room underground horizontal arrangement of Fig. 4 embodiments；

F-F in Fig. 5 Fig. 2 is to sectional view；；

E-E in Fig. 6 Fig. 2 is to sectional view.

In figure：1-efficient premixed ceramic burner；2-combustion chamber furnace shells；3-combustion chambers；4-hot-blast outlets；5— Arc cylinder type body；6-checker brick ends；7-checker brick；8-laying fireproof bricks layers；9-insulatings；10-is mixed Solidifying earth foundation flue；11-cold air ducts；12-mono- regenerator flue outlets；13-mono- regenerative chamber cold air inlets；14-A store Hot cell；15-B regenerative chambers；16-A/B regenerative chamber partition walls；17-Two-cuff Technique room flue outlets；18-Two-cuff Technique room cold wind enter Mouthful；The ground 19-.

Specific implementation mode

The utility model is further explained and is illustrated below in conjunction with the accompanying drawings；

Embodiment 1

A kind of external combustion-regenerative hot blast stove of regenerative chamber underground horizontal arrangement, including horizontally disposed accumulation of heat under ground 19 Room, regenerative chamber are single regenerative chamber, and it is rectangular that the top of longitudinal section, which is arch lower part,.Accumulation of heat room housing is concrete from outside to inside Basic flue 10, insulating 9, laying fireproof bricks layer 8, the interior cavity that laying fireproof bricks layer 8 surrounds is checker brick 7, accumulation of heat The beginning of room housing is smoothly direct-connected with combustion chamber by the arc cylinder type body 5 of refractory material laying, combustion chamber placement in On ground, the top in combustion chamber 3 is equipped with efficient premixed ceramic burner 1, and combustion chamber middle section is provided with to be communicated with blast furnace Hot-blast outlet 4；The both sides of the tail end of accumulation of heat room housing are equipped with single regenerator flue and export 12, and the middle part of tail end is equipped with and cool air hose Single regenerative chamber cold air inlet 13 that road 11 connects.

Single regenerative chamber course of work, as shown in Figure 1:In main combustion period, combustion gas and air are pre- in premixed ceramic burner 1 It is mixed, it burns in combustion chamber 3, the high-temperature flue gas after burning flows into regenerative chamber temperature end through arc cylinder type body 5 downwards, through lattice 6 water conservancy diversion uniform flow of sub- brick end enters checker brick 7, single regenerator flue of the low-temperature flue gas after heat exchange through regenerative chamber tail end both sides 12 discharge of outlet.On air, cold wind is blasted from cold air duct 11 by single regenerative chamber cold air inlet 13, is led through checker brick end 6 Stream uniform flow enters checker brick 7, and the hot wind after heat exchange flows through curved circular cylindrical structure body 5 and goes out from positioned at the indoor hot wind that burns Mouth 4 enters hot air duct and is sent into blast furnace.

Embodiment 2

Another technical solution as the utility model：The regenerative chamber is divided into A regenerative chambers 14 and B accumulation of heats by partition wall 16 Room 15；The arc cylinder type body 5 is communicated with the beginning of A regenerative chambers 14,14 tail end of A regenerative chambers and 15 tail end of B regenerative chambers It communicates, the flue outlet 17 is opened in the side at 15 beginning of B regenerative chambers；The cold air inlet is opened in the top at B regenerative chambers beginning End.

The Two-cuff Technique room course of work, as shown in Figure 2:In main combustion period, combustion gas and air are pre- in premixed ceramic burner 1 It is mixed, it burns in combustion chamber 3, the high-temperature flue gas after burning enters 14 temperature end of A regenerative chambers through arc cylinder type body 5 downwards, Enter checker brick 7 through 6 water conservancy diversion uniform flow of checker brick end, then enters B through 6 water conservancy diversion of checker brick end by 14 low-temperature end of A regenerative chambers Regenerative chamber 15, Two-cuff Technique room flue outlet 17 of the low-temperature flue gas through 15 low-temperature end of B regenerative chambers after heat exchange are discharged.It is blowing Phase, cold wind are blasted by the Two-cuff Technique room cold air inlet 18 of B regenerative chamber low-temperature ends, enter grid through 6 water conservancy diversion uniform flow of checker brick end Then brick 7 enters A regenerative chambers 14 by 15 temperature end of B regenerative chambers through 6 water conservancy diversion of checker brick end, the hot wind warp after sufficient heat exchange Arc cylinder type body 5 enters hot air duct from the indoor hot-blast outlet 4 that burns and is sent into blast furnace.

Claims (3)

1. a kind of external combustion-regenerative hot blast stove of regenerative chamber underground horizontal arrangement, it is characterised in that：Including horizontal under ground (19) The regenerative chamber of arrangement, accumulation of heat room housing are concrete foundation cigarette from outside to inside（10）, insulating（9）, laying fireproof bricks layer （8）, laying fireproof bricks layer（8）It is checker brick in the cavity surrounded（7）, the beginning of accumulation of heat room housing by refractory material laying at Arc cylinder type body（5）With the combustion chamber on ground（3）Smooth direct-connected, combustion chamber（3）Top be equipped with efficiently it is premixed Ceramic burner（1）, combustion chamber middle section is provided with the hot-blast outlet communicated with blast furnace（4）；The both sides of the tail end of accumulation of heat room housing are set There are flue outlet, the middle part of tail end to be equipped with the cold air inlet to connect with cold air duct.

2. a kind of external combustion-regenerative hot blast stove of regenerative chamber underground horizontal arrangement according to claim 1, feature exist In：The regenerative chamber is that single regenerative chamber is arc cylinder type body, and the longitudinal section top of the structure is the arch lower part side of being Shape.

3. a kind of external combustion-regenerative hot blast stove of regenerative chamber underground horizontal arrangement according to claim 1, feature exist In：The regenerative chamber is by partition wall（16）It is divided into A regenerative chambers (14) and B regenerative chambers (15)；The arc cylinder type body（5）With The beginning of A regenerative chambers (14) communicates, and A regenerative chambers (14) tail end is communicated with B regenerative chambers (15) tail end, the flue outlet open in The side at B regenerative chambers beginning；The cold air inlet is opened in the top at B regenerative chambers beginning.