Melting furnace burner and vanadium product melting furnace

Abstract

The utility model relates to a melting furnace burner and a vanadium product melting furnace, and relates to the melting field, the melting furnace burner comprises a gas port, and a first combustion-supporting gas outlet, a second combustion-supporting gas outlet, a third combustion-supporting gas outlet and a fourth combustion-supporting gas outlet which are arranged around the gas port; a temperature measuring opening is formed between the first combustion-supporting gas outlet and the fourth combustion-supporting gas outlet; the equivalent circle diameter of the first combustion-supporting gas outlet, the equivalent circle diameter of the second combustion-supporting gas outlet, the equivalent circle diameter of the third combustion-supporting gas outlet and the equivalent circle diameter of the fourth combustion-supporting gas outlet are all smaller than the equivalent circle diameter of the gas port. And the sum of the equivalent circle diameter of the first combustion-supporting gas outlet, the equivalent circle diameter of the second combustion-supporting gas outlet, the equivalent circle diameter of the third combustion-supporting gas outlet and the equivalent circle diameter of the fourth combustion-supporting gas outlet is smaller than the equivalent circle diameter of the gas port. According to the melting furnace burner provided by the utility model, the fuel gas port and the plurality of combustion-supporting gas outlets are reasonably arranged and are matched with the temperature measuring port, so that the fuel gas and the combustion-supporting gas in the burner are regulated and controlled, the uniform distribution of a temperature field in a melting furnace is ensured, local overheating or underburning in the melting furnace is avoided, and high-quality piece melting is ensured.

Description

Technical Field

[0001] This utility model relates to the field of melting, specifically to a melting furnace burner and a vanadium product melting furnace. Background Technology

[0002] Currently, the use of melting furnaces to smelt vanadium products to produce V2O5 vanadium flakes is a common and widely applied method.

[0003] For example, CN103033033A discloses a vanadium product melting furnace, which includes: a furnace shell, forming the external structure of the furnace body; a furnace lining structure, formed on the inner side of the furnace shell and constituting the furnace chamber; a feed inlet, located on the upper surface of the furnace shell, through which the vanadium products to be melted are placed into the furnace; an air inlet, located on the side surface of the furnace shell, for introducing the air volume required for the melting process into the furnace; and a flue, located on the side surface of the furnace shell, for discharging the flue gas generated during the melting of vanadium products; wherein, the furnace lining structure includes a furnace side wall and a furnace bottom, and the furnace lining structure has a stepped structure in which the furnace side wall is gradually stepped back towards the furnace and intersects with the furnace bottom.

[0004] CN212082004U discloses a vanadium product melting furnace, which includes a furnace body. The furnace body includes: a furnace shell, forming the external structure of the furnace body; and a furnace lining structure, formed on the inner side of the furnace shell and constituting the furnace chamber. The furnace shell and the furnace lining structure form the furnace body structure. The furnace chamber includes: a melting chamber and a flue gas temperature-regulating and settling chamber. A fume hood is connected to the upper part of the flue gas temperature-regulating and settling chamber for discharging flue gas through the fume hood. A vent connected to an air supply duct is provided inside the flue gas temperature-regulating and settling chamber for introducing air into the interior of the flue gas temperature-regulating and settling chamber through the vent.

[0005] However, in the existing technology, the configuration of gas and auxiliary gas in the melting furnace is unreasonable. The auxiliary gas is directly supplied to the melting furnace, which leads to uneven temperature distribution inside the furnace, resulting in local overheating or under-burning, which is not conducive to high-quality molten sheets. Utility Model Content

[0006] In view of the problems existing in the prior art, the purpose of this utility model is to provide a melting furnace burner and a vanadium product melting furnace to solve the defects of uneven temperature field distribution in the melting furnace, which leads to local overheating or underburning and is not conducive to high-quality molten sheets.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] In a first aspect, this utility model provides a melting furnace burner, the melting furnace burner comprising:

[0009] A gas inlet, and a first auxiliary gas outlet, a second auxiliary gas outlet, a third auxiliary gas outlet, and a fourth auxiliary gas outlet arranged around the gas inlet;

[0010] A temperature measuring port is provided between the first and fourth auxiliary gas outlets;

[0011] The equivalent circle diameters of the first, second, third, and fourth gas-supporting outlets are all less than the equivalent circle diameter of the gas inlet.

[0012] The equivalent circle diameter of the first gas-supporting outlet + the equivalent circle diameter of the second gas-supporting outlet + the equivalent circle diameter of the third gas-supporting outlet + the equivalent circle diameter of the fourth gas-supporting outlet < the equivalent circle diameter of the gas inlet.

[0013] The melting furnace burner provided by this utility model, through the reasonable configuration of the gas inlet and multiple auxiliary gas outlets, and in conjunction with the temperature measuring port, realizes the regulation of the gas and auxiliary gas in the burner, thereby ensuring a uniform temperature field distribution in the melting furnace, avoiding local overheating or underburning in the melting furnace, and thus ensuring high-quality molten sheet.

[0014] As a preferred technical solution of this utility model, the equivalent circle diameter of the first gas-supporting outlet is 21-23% of the equivalent circle diameter of the gas inlet;

[0015] The equivalent circle diameter of the second gas-supporting outlet is 21-23% of the equivalent circle diameter of the gas inlet.

[0016] As a preferred technical solution of this utility model, the equivalent circle diameter of the third gas-supporting outlet is 21-23% of the equivalent circle diameter of the gas inlet;

[0017] The equivalent circle diameter of the fourth gas-supporting outlet is 21-23% of the equivalent circle diameter of the gas inlet.

[0018] As a preferred technical solution of this utility model, the equivalent circle diameter of the gas outlet is 210-230mm.

[0019] As a preferred technical solution of this utility model, the equivalent circle diameter of the first gas-supporting outlet is 45-55mm;

[0020] The equivalent circle diameter of the second combustion-supporting gas outlet is 45-55 mm;

[0021] The equivalent circular diameter of the third combustion-supporting gas outlet is 45-55mm;

[0022] The equivalent circle diameter of the fourth gas-supporting outlet is 45-55 mm.

[0023] As a preferred technical solution of this utility model, the shape of the gas outlet includes: circular or polygonal;

[0024] The shape of the first gas-supporting outlet includes: circular or polygonal;

[0025] The shape of the second gas-supporting outlet includes: circular or polygonal;

[0026] The shape of the third combustion-supporting outlet includes: circular or polygonal;

[0027] The shape of the fourth gas-supporting outlet includes: circular or polygonal.

[0028] As a preferred technical solution of this utility model, the first auxiliary gas outlet, the second auxiliary gas outlet, the third auxiliary gas outlet and the fourth auxiliary gas outlet are distributed at equal intervals with the gas inlet as the center.

[0029] As a preferred technical solution of this utility model, the shortest distance between the temperature measuring port and the gas port is greater than the shortest distance between the first auxiliary gas outlet and the gas port;

[0030] The shortest distance between the temperature measuring port and the gas port is greater than the shortest distance between the fourth auxiliary gas outlet and the gas port.

[0031] As a preferred embodiment of this invention, the center-to-center distance between the temperature measuring port and the gas port is 1.1-1.2 times the equivalent circle diameter of the gas port;

[0032] The center distance between the first gas-supporting outlet and the gas inlet is 0.9-1 times the equivalent circle diameter of the gas inlet;

[0033] The center distance between the fourth auxiliary gas outlet and the gas inlet is 0.9-1 times the equivalent circle diameter of the gas inlet.

[0034] Secondly, this utility model provides a vanadium product melting furnace, the melting furnace including the melting furnace burner as described in the first aspect.

[0035] Compared with existing technical solutions, this utility model has the following beneficial effects:

[0036] (1) The burner provided by this utility model optimizes the mixing of fuel and air and improves the burner structure, so that the fuel and combustion air are mixed more fully, the combustion is more complete, and the loss of unburned fuel is reduced.

[0037] (2) The burner provided by this utility model improves the burner layout, ensures uniform temperature distribution in the furnace, avoids local overheating or under-burning, improves the quality of the melted sheet, and reduces the damage to the furnace body caused by frequent start-stop. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the furnace burner provided in an embodiment of the present invention.

[0039] In the diagram: 100 - Gas outlet, 210 - First auxiliary gas outlet, 220 - Second auxiliary gas outlet, 230 - Third auxiliary gas outlet, 240 - Fourth auxiliary gas outlet, 300 - Temperature measuring port.

[0040] The present invention will now be described in further detail. However, the examples described below are merely simplified examples of the present invention and do not represent or limit the scope of protection of the present invention. The scope of protection of the present invention shall be determined by the claims. Detailed Implementation

[0041] To better illustrate this utility model and facilitate understanding of its technical solution, typical but non-limiting embodiments of this utility model are as follows:

[0042] In current melting furnaces, the improper configuration of burners leads to uneven temperature distribution within the furnace, resulting in localized overheating or under-burning, which is detrimental to achieving high-quality melt sheets. Therefore, this invention optimizes the burner design to ensure uniform temperature distribution within the melting furnace, as detailed below:

[0043] This embodiment provides a melting furnace burner, such as Figure 1 As shown, the furnace burner includes:

[0044] Gas inlet 100, and a first auxiliary gas outlet 210, a second auxiliary gas outlet 220, a third auxiliary gas outlet 230 and a fourth auxiliary gas outlet 240 arranged around the gas inlet 100;

[0045] A temperature measuring port 300 is provided between the first gas-supporting outlet 210 and the fourth gas-supporting outlet 240;

[0046] The equivalent circle diameters of the first gas-supporting outlet 210, the second gas-supporting outlet 220, the third gas-supporting outlet 230, and the fourth gas-supporting outlet 240 are all less than the equivalent circle diameter of the gas port 100.

[0047] The equivalent circle diameter of the first gas-supporting outlet 210 + the equivalent circle diameter of the second gas-supporting outlet 220 + the equivalent circle diameter of the third gas-supporting outlet 230 + the equivalent circle diameter of the fourth gas-supporting outlet 240 < the equivalent circle diameter of the gas outlet 100.

[0048] Wherein, the equivalent circle diameter of the first gas-supporting outlet 210 is 21-23% of the equivalent circle diameter of the gas outlet 100, for example, it can be 21%, 21.2%, 21.4%, 21.6%, 21.8%, 22%, 22.2%, 22.4%, 22.6%, 22.8%, or 23%, etc., but is not limited to the listed values. Other unlisted values ​​within this range also meet the requirements.

[0049] Wherein, the equivalent circle diameter of the second gas-supporting outlet 220 is 21-23% of the equivalent circle diameter of the gas outlet 100, for example, it can be 21%, 21.2%, 21.4%, 21.6%, 21.8%, 22%, 22.2%, 22.4%, 22.6%, 22.8%, or 23%, etc., but is not limited to the listed values. Other unlisted values ​​within this range also meet the requirements.

[0050] Wherein, the equivalent circle diameter of the third gas-supporting outlet 230 is 21-23% of the equivalent circle diameter of the gas outlet 100, for example, it can be 21%, 21.2%, 21.4%, 21.6%, 21.8%, 22%, 22.2%, 22.4%, 22.6%, 22.8%, or 23%, etc., but is not limited to the listed values. Other unlisted values ​​within this range also meet the requirements.

[0051] Wherein, the equivalent circle diameter of the fourth gas-supporting outlet 240 is 21-23% of the equivalent circle diameter of the gas outlet 100, for example, it can be 21%, 21.2%, 21.4%, 21.6%, 21.8%, 22%, 22.2%, 22.4%, 22.6%, 22.8%, or 23%, etc., but is not limited to the listed values. Other unlisted values ​​within this range also meet the requirements.

[0052] The equivalent circle diameter of the gas outlet 100 is 210-230mm, for example, it can be 210mm, 212mm, 214mm, 216mm, 218mm, 220mm, 222mm, 224mm, 226mm, 228mm or 230mm, but is not limited to the listed values. Other unlisted values ​​within this range also meet the requirements.

[0053] The equivalent circle diameter of the first gas-supporting outlet 210 is 45-55mm, for example, it can be 45mm, 46mm, 47mm, 48mm, 49mm, 50mm, 51mm, 52mm, 53mm, 54mm or 55mm, but is not limited to the listed values. Other unlisted values ​​within this range also meet the requirements.

[0054] The equivalent circle diameter of the second gas-supporting outlet 220 is 45-55mm, for example, it can be 45mm, 46mm, 47mm, 48mm, 49mm, 50mm, 51mm, 52mm, 53mm, 54mm or 55mm, but is not limited to the listed values. Other unlisted values ​​within this range also meet the requirements.

[0055] The equivalent circle diameter of the third gas-supporting outlet 230 is 45-55mm, for example, it can be 45mm, 46mm, 47mm, 48mm, 49mm, 50mm, 51mm, 52mm, 53mm, 54mm or 55mm, but is not limited to the listed values. Other unlisted values ​​within this range also meet the requirements.

[0056] The equivalent circle diameter of the fourth gas-supporting outlet 240 is 45-55mm, for example, it can be 45mm, 46mm, 47mm, 48mm, 49mm, 50mm, 51mm, 52mm, 53mm, 54mm or 55mm, but is not limited to the listed values. Other unlisted values ​​within this range also meet the requirements.

[0057] The gas inlet 100 may have a circular or polygonal shape.

[0058] The shape of the first gas-supporting outlet 210 includes: circular or polygonal.

[0059] The shape of the second gas-supporting outlet 220 includes: circular or polygonal.

[0060] The shape of the third gas-supporting outlet 230 includes: circular or polygonal.

[0061] The shape of the fourth gas-supporting outlet 240 includes: circular or polygonal.

[0062] In this invention, the polygon can be selected from triangles, squares, rectangles, pentagons, regular pentagons, hexagons, regular hexagons, octagons, regular octagons, etc. The specific size of the polygon can be reasonably designed based on the equivalent circle diameter.

[0063] The first gas-supporting outlet 210, the second gas-supporting outlet 220, the third gas-supporting outlet 230 and the fourth gas-supporting outlet 240 are distributed at equal intervals around the gas inlet 100.

[0064] Wherein, the shortest distance between the temperature measuring port 300 and the gas port 100 is greater than the shortest distance between the first auxiliary gas outlet 210 and the gas port 100.

[0065] Wherein, the shortest distance between the temperature measuring port 300 and the gas port 100 is greater than the shortest distance between the fourth auxiliary gas outlet 240 and the gas port 100.

[0066] The center-to-center distance between the temperature measuring port 300 and the gas port 100 is 1.1-1.2 times the equivalent circle diameter of the gas port 100. For example, it can be 1.1 times, 1.11 times, 1.12 times, 1.13 times, 1.14 times, 1.15 times, 1.16 times, 1.17 times, 1.18 times, 1.19 times, or 1.2 times, but is not limited to the listed values. Other unlisted values ​​within this range also meet the requirements.

[0067] In this utility model, the center distance between the temperature measuring port 300 and the gas port 100 refers to the straight-line distance between the center of the temperature measuring port 300 and the center of the gas port 100. Other related center distances can be deduced by analogy.

[0068] Wherein, the center distance between the first gas-supporting outlet 210 and the gas inlet 100 is 0.9 to 1 times the equivalent circle diameter of the gas inlet 100, for example, it can be 0.9 times, 0.91 times, 0.92 times, 0.93 times, 0.94 times, 0.95 times, 0.96 times, 0.97 times, 0.98 times, 0.99 times or 1 times, etc., but is not limited to the listed values. Other unlisted values ​​within this range also meet the requirements.

[0069] The center-to-center distance between the fourth gas outlet 240 and the gas inlet 100 is 0.9 to 1 times the equivalent circle diameter of the gas inlet 100. For example, it can be 0.9 times, 0.91 times, 0.92 times, 0.93 times, 0.94 times, 0.95 times, 0.96 times, 0.97 times, 0.98 times, 0.99 times, or 1 times, etc., but is not limited to the listed values. Other unlisted values ​​within this range also meet the requirements.

[0070] Furthermore, this embodiment provides a vanadium product melting furnace, the melting furnace including the melting furnace burner as described above.

[0071] Furthermore, to illustrate the effects achieved by the melting furnace burner provided by this utility model, the following practical example is provided for illustrative purposes:

[0072] Example 1

[0073] This embodiment provides a melting furnace burner, the melting furnace burner comprising:

[0074] Gas inlet 100, and a first auxiliary gas outlet 210, a second auxiliary gas outlet 220, a third auxiliary gas outlet 230 and a fourth auxiliary gas outlet 240 arranged around the gas inlet 100;

[0075] A temperature measuring port 300 is provided between the first gas-supporting outlet 210 and the fourth gas-supporting outlet 240;

[0076] The equivalent circle diameters of the first gas-supporting outlet 210, the second gas-supporting outlet 220, the third gas-supporting outlet 230, and the fourth gas-supporting outlet 240 are all less than the equivalent circle diameter of the gas port 100.

[0077] The equivalent circle diameter of the first gas-supporting outlet 210 + the equivalent circle diameter of the second gas-supporting outlet 220 + the equivalent circle diameter of the third gas-supporting outlet 230 + the equivalent circle diameter of the fourth gas-supporting outlet 240 < the equivalent circle diameter of the gas outlet 100.

[0078] The diameter of the gas inlet 100 is 220mm, and it is a circular opening;

[0079] The first gas-supporting outlet 210 has a circular diameter of 50 mm and is a circular opening;

[0080] The second gas-supporting outlet 220 has a circular diameter of 50 mm and is a circular opening;

[0081] The third gas-supporting outlet 230 has a circular diameter of 50 mm and is a circular opening;

[0082] The fourth gas-supporting outlet 240 has a circular diameter of 50 mm and is a circular opening;

[0083] The first gas-supporting outlet 210, the second gas-supporting outlet 220, the third gas-supporting outlet 230 and the fourth gas-supporting outlet 240 are distributed at equal intervals with the gas inlet 100 as the center;

[0084] The shortest distance between the temperature measuring port 300 and the gas port 100 is greater than the shortest distance between the first auxiliary gas outlet 210 and the gas port 100; the shortest distance between the temperature measuring port 300 and the gas port 100 is greater than the shortest distance between the fourth auxiliary gas outlet 240 and the gas port 100.

[0085] The center-to-center distance between the temperature measuring port 300 and the gas port 100 is 1.15 times the equivalent circle diameter of the gas port 100;

[0086] The center distance between the first gas-supporting outlet 210 and the gas inlet 100 is 0.95 times the equivalent circle diameter of the gas inlet 100;

[0087] The center distance between the fourth gas-supporting outlet 240 and the gas inlet 100 is 0.95 times the equivalent circle diameter of the gas inlet 100.

[0088] Example 2

[0089] This embodiment provides a melting furnace burner, the melting furnace burner comprising:

[0090] Gas inlet 100, and a first auxiliary gas outlet 210, a second auxiliary gas outlet 220, a third auxiliary gas outlet 230 and a fourth auxiliary gas outlet 240 arranged around the gas inlet 100;

[0091] A temperature measuring port 300 is provided between the first gas-supporting outlet 210 and the fourth gas-supporting outlet 240;

[0092] The equivalent circle diameters of the first gas-supporting outlet 210, the second gas-supporting outlet 220, the third gas-supporting outlet 230, and the fourth gas-supporting outlet 240 are all less than the equivalent circle diameter of the gas port 100.

[0093] The equivalent circle diameter of the first gas-supporting outlet 210 + the equivalent circle diameter of the second gas-supporting outlet 220 + the equivalent circle diameter of the third gas-supporting outlet 230 + the equivalent circle diameter of the fourth gas-supporting outlet 240 < the equivalent circle diameter of the gas outlet 100.

[0094] The equivalent circle diameter of the gas inlet 100 is 210mm, and it is a square opening;

[0095] The equivalent circle diameter of the first gas-supporting outlet 210 is 45mm, and it is a square opening;

[0096] The equivalent circle diameter of the second gas-supporting outlet 220 is 45mm, and it is a square opening;

[0097] The equivalent circular diameter of the third gas-supporting outlet 230 is 45mm, and it is a square opening;

[0098] The equivalent circle diameter of the fourth gas-supporting outlet 240 is 45mm, and it is a square opening;

[0099] The first gas-supporting outlet 210, the second gas-supporting outlet 220, the third gas-supporting outlet 230 and the fourth gas-supporting outlet 240 are distributed at equal intervals with the gas inlet 100 as the center;

[0100] The shortest distance between the temperature measuring port 300 and the gas port 100 is greater than the shortest distance between the first auxiliary gas outlet 210 and the gas port 100; the shortest distance between the temperature measuring port 300 and the gas port 100 is greater than the shortest distance between the fourth auxiliary gas outlet 240 and the gas port 100.

[0101] The center-to-center distance between the temperature measuring port 300 and the gas port 100 is 1.2 times the equivalent circle diameter of the gas port 100;

[0102] The center distance between the first gas-supporting outlet 210 and the gas inlet 100 is 0.9 times the equivalent circle diameter of the gas inlet 100;

[0103] The center distance between the fourth gas-supporting outlet 240 and the gas inlet 100 is 0.9 times the equivalent circle diameter of the gas inlet 100.

[0104] Example 3

[0105] This embodiment provides a melting furnace burner, the melting furnace burner comprising:

[0106] Gas inlet 100, and a first auxiliary gas outlet 210, a second auxiliary gas outlet 220, a third auxiliary gas outlet 230 and a fourth auxiliary gas outlet 240 arranged around the gas inlet 100;

[0107] A temperature measuring port 300 is provided between the first gas-supporting outlet 210 and the fourth gas-supporting outlet 240;

[0108] The equivalent circle diameters of the first gas-supporting outlet 210, the second gas-supporting outlet 220, the third gas-supporting outlet 230, and the fourth gas-supporting outlet 240 are all less than the equivalent circle diameter of the gas port 100.

[0109] The equivalent circle diameter of the first gas-supporting outlet 210 + the equivalent circle diameter of the second gas-supporting outlet 220 + the equivalent circle diameter of the third gas-supporting outlet 230 + the equivalent circle diameter of the fourth gas-supporting outlet 240 < the equivalent circle diameter of the gas outlet 100.

[0110] The equivalent circle diameter of the gas inlet 100 is 230mm, and it is a square inlet;

[0111] The equivalent circle diameter of the first gas-supporting outlet 210 is 55mm, and it is a square opening;

[0112] The equivalent circular diameter of the second gas-supporting outlet 220 is 55mm, and it is a square opening;

[0113] The equivalent circular diameter of the third gas-supporting outlet 230 is 55mm, and it is a square opening;

[0114] The equivalent circle diameter of the fourth gas-supporting outlet 240 is 55mm, and it is a square opening;

[0115] The first gas-supporting outlet 210, the second gas-supporting outlet 220, the third gas-supporting outlet 230 and the fourth gas-supporting outlet 240 are distributed at equal intervals with the gas inlet 100 as the center;

[0116] The shortest distance between the temperature measuring port 300 and the gas port 100 is greater than the shortest distance between the first auxiliary gas outlet 210 and the gas port 100; the shortest distance between the temperature measuring port 300 and the gas port 100 is greater than the shortest distance between the fourth auxiliary gas outlet 240 and the gas port 100.

[0117] The center-to-center distance between the temperature measuring port 300 and the gas port 100 is 1.1 times the equivalent circle diameter of the gas port 100;

[0118] The center distance between the first gas-supporting outlet 210 and the gas inlet 100 is 0.9 times the equivalent circle diameter of the gas inlet 100;

[0119] The center distance between the fourth gas-supporting outlet 240 and the gas inlet 100 is 0.9 times the equivalent circle diameter of the gas inlet 100.

[0120] Example 4

[0121] This embodiment provides a melting furnace burner, the melting furnace burner comprising:

[0122] Gas inlet 100, and a first auxiliary gas outlet 210, a second auxiliary gas outlet 220, a third auxiliary gas outlet 230 and a fourth auxiliary gas outlet 240 arranged around the gas inlet 100;

[0123] A temperature measuring port 300 is provided between the first gas-supporting outlet 210 and the fourth gas-supporting outlet 240;

[0124] The diameters of the first gas-supporting outlet 210, the second gas-supporting outlet 220, the third gas-supporting outlet 230, and the fourth gas-supporting outlet 240 are all less than the diameter of the gas inlet 100;

[0125] The equivalent circle diameter of the first gas-supporting outlet 210 + the equivalent circle diameter of the second gas-supporting outlet 220 + the equivalent circle diameter of the third gas-supporting outlet 230 + the equivalent circle diameter of the fourth gas-supporting outlet 240 < the equivalent circle diameter of the gas outlet 100.

[0126] The gas inlet 100 has a circular diameter of 225mm and is a circular opening.

[0127] The first gas-supporting outlet 210 has a circular diameter of 48 mm and is a circular opening;

[0128] The second gas-supporting outlet 220 has a circular diameter of 48mm and is a circular opening;

[0129] The third gas-supporting outlet 230 has a circular diameter of 48mm and is a circular opening;

[0130] The fourth gas-supporting outlet 240 has a circular diameter of 48mm and is a circular opening;

[0131] The first gas-supporting outlet 210, the second gas-supporting outlet 220, the third gas-supporting outlet 230 and the fourth gas-supporting outlet 240 are distributed at equal intervals with the gas inlet 100 as the center;

[0132] The shortest distance between the temperature measuring port 300 and the gas port 100 is greater than the shortest distance between the first auxiliary gas outlet 210 and the gas port 100; the shortest distance between the temperature measuring port 300 and the gas port 100 is greater than the shortest distance between the fourth auxiliary gas outlet 240 and the gas port 100.

[0133] The center-to-center distance between the temperature measuring port 300 and the gas port 100 is 1.2 times the circular diameter of the gas port 100;

[0134] The center-to-center distance between the first gas-supporting outlet 210 and the gas inlet 100 is 1 times the circular diameter of the gas inlet 100;

[0135] The center distance between the fourth gas outlet 240 and the gas inlet 100 is 1 times the circular diameter of the gas inlet 100.

[0136] As can be seen from the use of the furnace burner in the above embodiments, by rationally configuring the gas inlet and multiple auxiliary gas outlets, and cooperating with the temperature measuring port, the gas and auxiliary gas in the burner can be regulated, thereby ensuring a uniform temperature field distribution in the furnace and avoiding local overheating or underburning in the furnace, thus ensuring high-quality molten sheets.

[0137] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0138] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0139] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A burner for a melting furnace, characterized in that, The melting furnace burner includes: A gas inlet, and a first auxiliary gas outlet, a second auxiliary gas outlet, a third auxiliary gas outlet, and a fourth auxiliary gas outlet arranged around the gas inlet; A temperature measuring port is provided between the first and fourth auxiliary gas outlets; The equivalent circle diameters of the first, second, third, and fourth gas-supporting outlets are all less than the equivalent circle diameter of the gas inlet. The equivalent circle diameter of the first gas-supporting outlet + the equivalent circle diameter of the second gas-supporting outlet + the equivalent circle diameter of the third gas-supporting outlet + the equivalent circle diameter of the fourth gas-supporting outlet < the equivalent circle diameter of the gas inlet.

2. The melting furnace burner as described in claim 1, characterized in that, The equivalent circle diameter of the first gas-supporting outlet is 21-23% of the equivalent circle diameter of the gas inlet; The equivalent circle diameter of the second gas-supporting outlet is 21-23% of the equivalent circle diameter of the gas inlet.

3. The melting furnace burner as described in claim 1, characterized in that, The equivalent circle diameter of the third gas-supporting outlet is 21-23% of the equivalent circle diameter of the gas inlet; The equivalent circle diameter of the fourth gas-supporting outlet is 21-23% of the equivalent circle diameter of the gas inlet.

4. The melting furnace burner as described in claim 1, characterized in that, The equivalent circle diameter of the gas inlet is 210-230 mm.

5. The melting furnace burner as described in claim 1, characterized in that, The equivalent circle diameter of the first gas-supporting outlet is 45-55mm; The equivalent circle diameter of the second combustion-supporting gas outlet is 45-55 mm; The equivalent circular diameter of the third combustion-supporting gas outlet is 45-55mm; The equivalent circle diameter of the fourth gas-supporting outlet is 45-55 mm.

6. The melting furnace burner as described in claim 1, characterized in that, The shape of the gas inlet includes: circular or polygonal; The shape of the first gas-supporting outlet includes: circular or polygonal; The shape of the second gas-supporting outlet includes: circular or polygonal; The shape of the third combustion-supporting outlet includes: circular or polygonal; The shape of the fourth gas-supporting outlet includes: circular or polygonal.

7. The melting furnace burner as described in claim 1, characterized in that, The first, second, third, and fourth gas-supporting outlets are distributed at equal intervals around the gas inlet.

8. The melting furnace burner as described in claim 1, characterized in that, The shortest distance between the temperature measuring port and the gas port is greater than the shortest distance between the first auxiliary gas outlet and the gas port; The shortest distance between the temperature measuring port and the gas port is greater than the shortest distance between the fourth auxiliary gas outlet and the gas port.

9. The melting furnace burner as described in claim 8, characterized in that, The center-to-center distance between the temperature measuring port and the gas port is 1.1-1.2 times the equivalent circle diameter of the gas port; The center distance between the first gas-supporting outlet and the gas inlet is 0.9-1 times the equivalent circle diameter of the gas inlet; The center distance between the fourth auxiliary gas outlet and the gas inlet is 0.9-1 times the equivalent circle diameter of the gas inlet.

10. A vanadium product melting furnace, characterized in that, The melting furnace includes a melting furnace burner as described in any one of claims 1-9.

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