Burner of hot-blast stove drying furnace
Technical Field
The utility model belongs to the technical field of hot-blast furnace baker equipment, especially, relate to a hot-blast furnace baker combustor.
Background
The ball type hot blast stove is a heat accumulating type hot blast stove which replaces a lattice brick chamber with a regular channel with naturally accumulated refractory balls and is widely used for smelting steel; the manufacturing process of the ball type hot blast stove needs to use the refractory material of the hot blast stove, which is a material condition for realizing the high temperature and long service life of the hot blast stove; bulk materials can be mixed with a large amount of moisture in the building process of the refractory materials, and the refractory materials and heat accumulators built by the hot blast stove are required to be baked after the building and construction are finished, so that the moisture of the refractory materials and the heat accumulators in the building process is removed, and the heated heat accumulators have the capacity of conveying hot air to the blast furnace; therefore, the burner of the hot blast stove is used in the process of baking a large amount of moisture mixed in the bulk materials in the refractory materials and the heat accumulator masonry.
In the use process of the existing burner of the hot blast stove drying oven, most burners are directly used for baking the masonry refractory material and the heat accumulator inside the hot blast stove drying oven, and because the inside of the hot blast stove is an environment with unsmooth air circulation, the burner can cause insufficient combustion after burning coal gas for a long time to extinguish fire, thus seriously affecting the normal use of the burner; most of the existing burners can not accurately adjust the combustion power of the gas flame, and the fact that the combustion power of the gas flame can not be accurately adjusted can be caused as follows: the baking process of the refractory material and the heat accumulator can not be controlled according to the formulated temperature rise curve, so that the hot blast stove is extremely easy to damage to masonry refractory materials and the heat accumulator, because a large amount of moisture mixed with the bulk materials is built in the refractory materials and the heat accumulator, the temperature rise process is carried out slowly, otherwise, the refractory materials and the heat accumulator cause thermal expansion, the masonry stability of the refractory materials and the heat accumulator is seriously influenced, and the service life of the hot blast stove is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the utility model provides a burner of a hot blast stove drying furnace, which aims to solve the problems that the burner in the related technology is not sufficient in combustion and is easy to extinguish fire and the service life of the hot blast stove is shortened due to the fact that the combustion power of gas flame can not be accurately adjusted.
The utility model adopts the technical scheme as follows:
a burner of a hot blast stove drying furnace comprises a gas pipe, an opening formed in the outer circumference of one end of the gas pipe and a first vent pipe fixedly connected to the gas pipe and far away from one end of the opening, wherein one end of the first vent pipe far away from the gas pipe is fixedly connected with a gas regulating valve, one side of the gas regulating valve is connected with a coking coal bag through a pipeline, an air pipe is installed in an inner cavity of the gas pipe, one end of the air pipe extends to the opening, one end of the air pipe extending to the opening is fixedly connected with an air outlet head, the air outlet head extends out of the opening, and the other end of the air pipe extends and penetrates through the wall of the other end; the other end of the air pipe is fixedly connected with a second vent pipe, the other end of the second vent pipe is fixedly connected with an air regulating valve, a third vent pipe is fixedly connected to the air regulating valve, and the other end of the third vent pipe is fixedly connected with a pressure air bag.
Preferably, the coking coal bag is fixedly connected with a plurality of fourth air pipes, the plurality of fourth air pipes are communicated with the coking coal bag, and each fourth air pipe is provided with a first flow regulating valve.
Preferably, a second flow regulating valve is installed on the third vent pipe.
Preferably, be provided with the installation cover on the opening, the installation cover is with going out gas head and opening whole cover, and the installation cover links firmly with the gas pipe towards gas pipe one end, and the installation cover links firmly the hybrid net in one of gas pipe dorsad.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses in, through installing the air pipe in the inside cavity at the gas pipe, when the inside of gas pipe lets in coal gas and toasts the environment burning that the inside air of hot-blast furnace does not circulate, the air pipe of installation can let in the air to the hot-blast furnace is inside in the inside cavity of gas pipe, has ensured the normal circulation of the inside air of hot-blast furnace, has solved the baker and has leaded to the insufficient problem that leads to putting out a fire of combustor burning coal gas because of the circulation of air is not smooth.
2. In the utility model, the coking coal bag is communicated with the gas regulating valve through a plurality of fourth gas pipes, and each fourth gas pipe is provided with a first flow regulating valve, so that the flow of the gas in each fourth gas pipe can be accurately regulated, the gas circulating in the gas pipe can be accurately regulated, and the combustion flame size of the burner and the change of the control temperature can be accurately controlled by accurately regulating the flow of the gas; the second flow regulating valve is arranged on the third air through pipe, so that the air circulating in the air pipe and the air entering the interior of the hot blast stove can be accurately regulated to assist the combustion of the coal gas; through the mutual cooperation of the first flow regulating valve and the second flow regulating valve, the combustion power and the temperature rise curve of the baking furnace are ensured to be carried out stably, the situation that the moisture-containing refractory material and a heat accumulator which are built by the hot blast stove are damaged due to the fact that the combustion power cannot be accurately regulated by the existing burner is avoided, and the problem that the service life of the hot blast stove is shortened due to the fact that the combustion power of gas flame cannot be accurately regulated by the existing burner is solved.
3. The utility model discloses in, through be provided with the installation cover on the opening, the installation is sheathe in and is linked firmly the hybrid network, and the mutually supporting of installation cover and hybrid network can make air and coal gas mix, the complete combustion of the coal gas of being convenient for.
Drawings
FIG. 1 is a cross-sectional view of a gas pipe according to the present invention;
FIG. 2 is an enlarged schematic view of the structure of FIG. 1;
fig. 3 is a front view of the gas pipe of the present invention.
The labels in the figure are: 1. a gas pipe; 2. an opening; 3. an air tube; 4. an air outlet head; 5. a first vent pipe; 6. a gas regulating valve; 7. a coking coal bag; 8. a second vent pipe; 801. an air regulating valve; 9. a third vent pipe; 10. pressing the air bag; 11. a fourth air vent pipe; 12. a first flow regulating valve; 13. a second flow regulating valve; 14. installing a sleeve; 15. a hybrid net.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Example 1
Referring to fig. 1, a burner of a hot blast stove oven comprises a gas pipe 1, an opening 2 arranged on the outer circumference of one end of the gas pipe 1 and a first vent pipe 5 fixedly connected to the gas pipe 1 and far away from one end of the opening 2, wherein one end of the first vent pipe 5 far away from the gas pipe 1 is fixedly connected with a gas regulating valve 6, one side of the gas regulating valve 6 is connected with a coking coal bag 7 through a pipeline, and the coking coal bag 7, the first vent pipe 5 and the gas regulating valve 6 are mutually matched to stably supply gas to the inside of the gas pipe 1 and then flow out from the opening 2, which are the same as the prior art; an air pipe 3 is installed in an internal cavity of the gas pipe 1, one end of the air pipe 3 extends to the opening 2, one end of the air pipe 3 extending to the opening 2 is fixedly connected with an air outlet head 4, a plurality of air outlet holes are formed in the air outlet head 4 and can circulate air transmitted in the air pipe 3, the air outlet head 4 extends out of the opening 2, the air and the gas are not premixed, the air and the gas can be mixed and combusted in a space in the hot blast stove conveniently, the combustion range is large, the combustion is sufficient, smoke generated by combustion rises and can heat and bake a heat accumulator of the hot blast stove, and the other end of the air pipe 3 extends and penetrates through the wall of the other end of the gas pipe 1; the other end of the air pipe 3 is fixedly connected with a second vent pipe 8, the other end of the second vent pipe 8 is fixedly connected with an air regulating valve 801, a third vent pipe 9 is fixedly connected onto the air regulating valve 801, the other end of the third vent pipe 9 is fixedly connected with an air pressing bag 10, and the air pressing bag 10 can stably transmit air into the air pipe 3 through mutual matching of the third vent pipe 9 and the air regulating valve 801; the coking coal bag 7 can transmit coal gas to the inside of the gas pipe 1 through the mutual matching of the gas regulating valve 6 and the first vent pipe 5, and air is transmitted in the hot blast stove while the coal gas is transmitted for combustion, so that the normal circulation of the air in the hot blast stove is ensured, and the problem that the fire is extinguished because the air circulation is not smooth and the coal gas is not sufficiently combusted by the burner is solved.
The utility model discloses in, through installing air pipe 3 in the inside cavity at gas pipe 1, when gas pipe 1's inside let in the environment combustion that coal gas does not circulate the inside air of hot-blast furnace and toasts, air pipe 3 of installation in gas pipe 1's the inside cavity can be to the inside air that lets in of hot-blast furnace, has ensured the inside normal circulation of air of hot-blast furnace, has solved the baker and has leaded to the insufficient problem that leads to putting out a fire of combustor burning coal gas because of the circulation of air is not smooth.
Example 2
Referring to fig. 1, it is further limited on the basis of embodiment 1 that a plurality of fourth gas pipes 11 are fixedly connected to a coking coal bag 7, the plurality of fourth gas pipes 11 are all communicated with the coking coal bag 7, each fourth gas pipe 11 is provided with a first flow regulating valve 12, the type of the first flow regulating valve 12 is preferably DN32, the first flow regulating valve 12 can regulate the gas flow of the coking coal bag 7 to the fourth gas pipe 11, the plurality of fourth gas pipes 11 and the plurality of first flow regulating valves 12 are matched with each other to facilitate accurate regulation of the gas flow, so that the gas flow of the fourth gas pipes 11 to the gas regulating valves 6, the first gas pipes 5 and the gas pipes 1 can be accurately regulated, the third gas pipe 9 is provided with a second flow regulating valve 13, the type of the second flow regulating valve 13 is preferably DN20, and the second flow regulating valve 13 can regulate the gas flow of the second gas pipe 8, The air control valve 801 and the air flowing through the air pipe 3 and the air introduced into the interior of the hot blast stove are precisely controlled to assist the combustion of the gas.
In the utility model, the coking coal bag 7 is communicated with the gas regulating valve 6 through a plurality of fourth gas pipes 11, and each fourth gas pipe 11 is provided with a first flow regulating valve 12, which can accurately regulate the flow of the gas in each fourth gas pipe 11, thereby accurately regulating the gas circulating in the gas pipe 1, and further accurately controlling the size of the combustion flame of the burner and the change of the control temperature by accurately regulating the flow of the gas; the second flow regulating valve 13 is arranged on the third air through pipe 9, so that the air circulating in the air pipe 3 and the air entering the interior of the hot blast stove can be accurately regulated to assist the combustion of the coal gas; through the mutual cooperation of the first flow regulating valve 12 and the second flow regulating valve 13, the combustion power and the temperature rise curve of the baking oven are ensured to be carried out stably, the moisture-containing refractory material and the heat accumulator which are built by the hot blast stove and are damaged due to the fact that the combustion power cannot be accurately regulated by the existing burner are avoided, and the problem that the service life of the hot blast stove is shortened due to the fact that the combustion power of gas flame cannot be accurately regulated by the existing burner is solved.
Example 3
Refer to fig. 1, further inject on embodiment 1's basis, be provided with installation cover 14 on the opening 2, installation cover 14 covers gas head 4 and opening 2 is whole, and installation cover 14 links firmly with gas pipe 1 towards 1 one end of gas pipe, installation cover 14 is served to one of gas pipe 1 dorsad and is linked firmly hybrid network 15, through be provided with installation cover 14 on opening 2, install and have linked firmly hybrid network 15 on the cover 14, installation cover 14 and hybrid network 15 mutually support, can make the air that gas head 4 flows mix with the coal gas that opening 2 flows, be convenient for the complete combustion of coal gas.
Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.