Blast furnace gas burner with dispersed combustion structure

Abstract

The utility model discloses a blast furnace gas burner with a dispersed combustion structure, which comprises a combustion box body, a gas pipe connecting frame, an air inlet bin and a gas inlet bin, the gas pipe connecting frame and the air inlet bin are fixedly connected inside the combustion box body, and the air inlet bin is fixedly connected to the left side of the gas pipe connecting frame. The coal gas inlet bin is fixedly connected to the left side of the gas pipe connecting frame and located on the side face of the air inlet bin. According to the blast furnace gas burner with the dispersed combustion structure, the combustion box body, the gas pipe connecting frame, the air inlet bin, the gas inlet bin and the adjusting assembly are matched with one another, the pushing air cylinder pushes the fixing plate to move, the sealing plug is controlled to close and open the through hole, and therefore the gas inlet path is controlled, and the combustion efficiency is improved. The gas is dispersed, and is conveyed and combusted in a layered manner, so that the gas is combusted more sufficiently in the combustion process, and the utilization rate of the gas is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace gas burners, in particular to a blast furnace gas burner with a dispersed combustion structure. Background Art

[0002] Blast furnace gas is a combustible gas produced as a byproduct during the ironmaking process of blast furnaces. Carbon monoxide is the main combustible component in blast furnace gas, accounting for more than 90% of the combustible components. It is a colorless, odorless, toxic gas and is highly toxic. Since the ignition temperature of blast furnace gas is higher than that of coke oven gas and the ignition concentration range is narrow, once pressure fluctuations occur and the burner is de-ignited, causing the furnace to go out and gas to leak, it will lead to major safety accidents.

[0003] When blast furnace gas is passed into an ordinary burner, due to the small amount of combustible components in blast furnace gas and the use of only one gas outlet, it will cause problems such as uneven mixing of gas and air and incomplete combustion of gas, thereby leading to waste of gas. Therefore, it is necessary to propose a blast furnace gas burner with a decentralized combustion structure. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a blast furnace gas burner with a dispersed combustion structure.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A blast furnace gas burner with a dispersed combustion structure comprises a combustion box, wherein a gas pipe connecting frame is fixedly connected to the interior of the combustion box;

[0007] An air intake bin, the air intake bin is fixedly connected to the left side of the air pipe connecting frame;

[0008] A gas inlet bin, which is fixedly connected to the left side of the gas pipe connecting frame and is located on the side of the air inlet bin;

[0009] An adjusting component is fixedly connected to the left side of the combustion box.

[0010] The above-mentioned blast furnace gas burner with a dispersed combustion structure, wherein the gas pipe connecting frame is provided with air vents and gas vents inside, the air vents are connected to the air inlet bin, and the gas inlet bin is connected to the gas inlet bin;

[0011] An air intake pipe is communicated with the air intake bin.

[0012] The blast furnace gas burner with a dispersed combustion structure has two gas inlet bins, and the two gas inlet bins are separated by an air inlet bin;

[0013] A connecting chamber, wherein the connecting chamber connects the two gas inlet chambers;

[0014] A gas inlet pipe is connected with the communication chamber.

[0015] The above-mentioned blast furnace gas burner with a decentralized combustion structure, wherein the regulating component comprises:

[0016] A push cylinder, wherein the push cylinder is fixedly connected to the left side of the combustion box;

[0017] A fixed plate, the fixed plate being fixedly connected to the output end of the push cylinder;

[0018] A connecting rod, wherein the connecting rod is fixedly connected to the right side of the fixing plate;

[0019] A sealing plug is fixedly connected to the connecting rod, and the sealing plug corresponds to a through hole at a position of the connecting bin corresponding to the gas inlet bin.

[0020] The above-mentioned blast furnace gas burner with a dispersed combustion structure, wherein the gas inlet pipe and the air inlet pipe are both threadedly connected with a butterfly valve;

[0021] An igniter, the igniter being fixedly connected to the top of the combustion box;

[0022] A dispersion pipe, the dispersion pipe is fixedly connected to the right side of the air pipe connecting frame;

[0023] An observation hole is arranged on the surface of the combustion box.

[0024] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0025] 1. The utility model realizes a blast furnace gas burner with a dispersed combustion structure by the mutual cooperation between the combustion box, the gas pipe connecting frame, the air intake bin, the gas intake bin and the regulating component. The cylinder is pushed to push the fixed plate to move, and the sealing plug is controlled to close and open the through hole, so as to control the gas intake path, disperse the gas, and transport and burn the gas in layers, so as to realize more complete combustion of the gas during the combustion process to ensure the utilization rate of the gas.

[0026] 2. In the utility model, the dispersion pipe is arranged to stagger the gas outlet positions of the two gas inlet bins, making it more convenient to mix the gas and air components.

[0027] 3. In the present invention, the butterfly valve is provided to facilitate the control of the air intake efficiency so as to adjust the ratio of gas to air.

[0028] 4. In the present invention, the observation hole is provided to facilitate observation of the flame state after ignition is completed in the combustion box to prevent flameout. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural cross-sectional view of the main view of the utility model;

[0030] Figure 2 It is a structural schematic diagram of the rear view of the utility model;

[0031] Figure 3 It is a three-dimensional diagram of the gas pipe connecting frame and the gas vent hole of the utility model;

[0032] Figure 4 It is a three-dimensional diagram of the air intake bin of the utility model.

[0033] In the figure:

[0034] 1 combustion box, 2 gas pipe connecting frame, 3 air intake bin, 4 gas intake bin, 5 adjustment component, 501 push cylinder, 502 fixing plate, 503 connecting rod, 504 sealing plug, 6 air vents, 7 gas vents, 8 air intake pipe, 9 connecting bin, 10 gas intake pipe, 11 butterfly valve, 12 igniter, 13 dispersion pipe, 14 observation hole. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] like Figure 1-4 As shown, a blast furnace gas burner with a decentralized combustion structure includes a combustion box body 1, the combustion box body 1 is fixedly connected to a gas pipe connecting frame 2, the gas pipe connecting frame 2 is provided with air vents 6 and gas vents 7, the air vents 6 are connected to an air inlet bin 3, and the gas inlet bin 4 is connected to the gas vents 7.

[0037] The air intake pipe 8 is communicated with the air intake bin 3 .

[0038] The air intake bin 3 is fixedly connected to the left side of the air pipe connecting frame 2.

[0039] The gas inlet bin 4 is fixedly connected to the left side of the air pipe connecting frame 2 and is located on the side of the air inlet bin 3. There are two gas inlet bins 4, and the two gas inlet bins 4 are separated by the air inlet bin 3.

[0040] The connecting chamber 9 connects the two gas inlet chambers 4 .

[0041] The gas inlet pipe 10 is connected with the communication chamber 9 , and the gas inlet pipe 10 and the air inlet pipe 8 are both threadedly connected with a butterfly valve 11 .

[0042] The igniter 12 is fixedly connected to the top of the combustion box 1.

[0043] The dispersion pipe 13 is fixedly connected to the right side of the gas pipe connecting frame 2, and the gas outlet positions of the two gas inlet bins 4 are staggered, which is more convenient for the gas and air to be fully mixed. The observation hole 14 is set on the surface of the combustion box 1.

[0044] The adjusting component 5 is fixedly connected to the left side of the combustion box 1, and the adjusting component 5 includes:

[0045] The push cylinder 501 is fixedly connected to the left side of the combustion box body 1 .

[0046] The fixing plate 502 is fixedly connected to the output end of the pushing cylinder 501 .

[0047] The connecting rod 503 is fixedly connected to the right side of the fixing plate 502 .

[0048] The sealing plug 504 is fixedly connected to the connecting rod 503. The sealing plug 504 corresponds to the through hole of the connecting bin 9 corresponding to the position of the gas inlet bin 4. The cylinder 501 pushes the fixed plate 502 to move, and controls the sealing plug 504 to close and open the through hole, thereby controlling the gas intake path, dispersing the gas, and transporting and burning the gas in layers, so as to achieve more complete combustion of the gas during the combustion process to ensure the utilization rate of the gas.

[0049] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0050] The utility model provides a blast furnace gas burner with a dispersed combustion structure. When in use, the cylinder 501 is pushed to push the fixed plate 502 to move, and the sealing plug 504 is controlled to close and open the through hole, thereby controlling the gas intake path and dispersing the gas. The ratio of gas to air is adjusted by controlling the closing degree of the butterfly valve 11, and ignition is completed through the igniter 12. The gas is transported and burned in layers, thereby achieving more complete combustion of the gas during the combustion process.

[0051] In summary: the blast furnace gas burner with a decentralized combustion structure solves the problems mentioned in the background technology through the cooperation among the combustion box 1, the gas pipe connecting frame 2, the air intake bin 3, the gas intake bin 4 and the adjustment component 5.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A blast furnace gas burner with a distributed combustion structure, comprising a combustion box (1), characterized in that: The combustion box (1) is fixedly connected to a gas pipe connecting frame (2); An air intake bin (3), wherein the air intake bin (3) is fixedly connected to the left side of the air pipe connecting frame (2); A gas intake bin (4), wherein the gas intake bin (4) is fixedly connected to the left side of the gas pipe connecting frame (2) and is located on the side of the air intake bin (3); An adjusting component (5), wherein the adjusting component (5) is fixedly connected to the left side of the combustion box (1).

2. The blast furnace gas burner with a distributed combustion structure according to claim 1, characterized in that: The air pipe connecting frame (2) is provided with an air vent (6) and a gas vent (7) inside, the air vent (6) is connected to the air inlet bin (3), and the gas inlet bin (4) is connected to the gas inlet bin (4); An air intake pipe (8), wherein the air intake pipe (8) is connected to the air intake bin (3).

3. A blast furnace gas burner with a distributed combustion structure according to claim 2, characterized in that: There are two gas inlet bins (4), and the two gas inlet bins (4) are separated by an air inlet bin (3); A connecting chamber (9), wherein the connecting chamber (9) connects the two gas inlet chambers (4); A gas inlet pipe (10), wherein the gas inlet pipe (10) is connected to the communication chamber (9).

4. A blast furnace gas burner with a distributed combustion structure according to claim 3, characterized in that: The regulating component (5) comprises: A pushing cylinder (501), wherein the pushing cylinder (501) is fixedly connected to the left side of the combustion box (1); A fixed plate (502), wherein the fixed plate (502) is fixedly connected to the output end of the pushing cylinder (501); A connecting rod (503), wherein the connecting rod (503) is fixedly connected to the right side of the fixing plate (502); A sealing plug (504), wherein the sealing plug (504) is fixedly connected to the connecting rod (503), and the sealing plug (504) corresponds to a through hole at a position of the connecting chamber (9) corresponding to the gas inlet chamber (4).

5. The blast furnace gas burner with a distributed combustion structure according to claim 4, characterized in that: The gas inlet pipe (10) and the air inlet pipe (8) are both threadedly connected with a butterfly valve (11); An igniter (12), wherein the igniter (12) is fixedly connected to the top of the combustion box (1); A dispersion pipe (13), wherein the dispersion pipe (13) is fixedly connected to the right side of the air pipe connecting frame (2); An observation hole (14), wherein the observation hole (14) is arranged on the surface of the combustion box (1).

Images