A furnace burner

Abstract

The present application provides a kind of kiln flame jet burner, the kiln flame jet burner, including delivery pipe, the top of the delivery pipe is communicated with first mixing pipe, the top of the first mixing pipe is provided with second mixing pipe, the outside of the first mixing pipe is provided with mixing assembly, the mixing assembly includes fan, first connecting pipe and connecting sleeve, the outside of the first mixing pipe is provided with fan, the air outlet of the fan is communicated with first connecting pipe, the end of the first connecting pipe away from fan is communicated with first mixing pipe, the inside of the first mixing pipe is provided with connecting sleeve.The kiln flame jet burner provided by the present application solves the problem that the existing part of the flame jet burner is not fully premixed before ignition, which can cause insufficient combustion of fuel, reduce combustion efficiency, cause waste of fuel, reduce work efficiency and cannot meet the needs of users.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of kiln burner equipment, in particular to a kiln flame jet burner. BACKGROUND

[0002] Industrial burners are commonly known as burners, which have many types and specifications, including oil, gas (coal gas), coal (pulverized coal / water coal slurry) and other categories, and are widely used in industrial applications that require fuel combustion to heat materials or reactions. According to the inlet path of the gas lift, it can also be divided into two types: annular space inlet (positive lift) and center tube inlet (reverse lift).

[0003] At present, when the kiln is in normal use, the temperature inside the kiln needs to be adjusted by using a flame jet burner, but some existing flame jet burners do not fully premix some fuels before ignition, which can cause incomplete combustion of the fuel, reduce the combustion efficiency, cause waste of fuel, reduce the work efficiency, and cannot meet the needs of users.

[0004] Therefore, it is necessary to provide a new kiln flame jet burner to solve the above technical problems. SUMMARY

[0005] To solve the above technical problems, the present application provides a kiln flame jet burner which can fully premix the fuel and thus fully combust the fuel, thereby improving the combustion efficiency to some extent and reducing fuel waste.

[0006] The kiln flame jet burner provided by the present application comprises a conveying pipe, a first mixing pipe is communicated with the top of the conveying pipe, a second mixing pipe is arranged at the top of the first mixing pipe, a mixing assembly is arranged on the outer side of the first mixing pipe, the mixing assembly comprises a fan, a first connecting pipe and a connecting sleeve, a fan is arranged on the outer side of the first mixing pipe, an air outlet of the fan is communicated with the first connecting pipe, one end of the first connecting pipe away from the fan is communicated with the first mixing pipe, and the connecting sleeve is arranged in the first mixing pipe.

[0007] In order to achieve the effect that the air passing through the air conveying pipe can enter the first connecting pipe under the action of the fan, then enter the first mixing pipe through the first connecting pipe, then the fuel can be fully mixed with the air for the first time in the first mixing pipe, the mixed fuel enters the second mixing pipe through the first mixing pipe, and then is mixed for the second time, and the mixed fuel is sprayed and then ignited, so that the fuel can be fully combusted and the fuel loss is reduced. As the present application provides a kiln flame jet burner, preferably, the mixing assembly further comprises a plug tube, and the plug tube is communicated with the inside of the connecting sleeve.

[0008] In order to achieve in using the device, first make the fuel can be transported through the delivery pipe, the fuel into the first mixing pipe inside, while starting the fan, the fan through the air pipe for air delivery transported air through the first connecting pipe into the first mixing pipe inside, then start the first motor, the first motor drives the first rotating roller rotation, the first rotating roller rotation can drive the first fan rotation, so that the air can be mixed with fuel under the action of the first fan, the fuel through the card pipe into the cannula inside, under the action of the card pipe, so that the cannula can be connected with the first mixing pipe tightly, prevent the effect of air leakage, as the invention provides a kind of kiln flame jet burner, preferably, the air inlet of the fan is communicated with air pipe, the inside of the connecting sleeve is provided with through hole, the top of the connecting sleeve is fixedly connected with fixed ring, the top of the fixed ring is provided with card pipe, the top of the card pipe is communicated with the bottom of the cannula.

[0009] In order to achieve the fuel in the first mixing pipe inside after mixing, into the cannula inside, then through the cannula into the gathering pipe inside, under the action of the first connecting disc and the second connecting disc, it is convenient for workers to connect the gathering pipe and the second mixing pipe, at the same time, workers need to disassemble the first connecting disc and the second connecting disc, rotate the bolt, so that the bolt is separated from the first connecting disc and the second connecting disc inside, then workers can take down the second mixing pipe, and can observe the combustion efficiency of the fuel by observing the amount of combustion residues on the inner wall of the gathering pipe, as the invention provides a kind of kiln flame jet burner, preferably, the outside of the cannula is fixedly connected with the first connecting disc, the top of the first connecting disc is provided with the second connecting disc, the inside of the second connecting disc is provided with the bolt, the outside of the bolt is screwed with the inside of the first connecting disc, the top of the cannula is communicated with the gathering pipe.

[0010] In order to achieve the fuel after the first mixing in the first mixing pipe can enter the second mixing pipe inside through the gathering pipe, after entering the second mixing pipe inside, the combustion-supporting gas is transported again through the second connecting pipe, the combustion-supporting gas is mixed again with the fuel after the first mixing in the second mixing pipe, further improve the mixing rate of fuel, so as to further improve the combustion efficiency of fuel, as the invention provides a kind of kiln flame jet burner, preferably, the top of the second connecting disc is fixedly connected with the bottom of the second mixing pipe, the inside of the second mixing pipe is communicated with the second connecting pipe, the top of the second mixing pipe is fixedly connected with the connecting ring.

[0011] In order to achieve the effect that the fuel mixed for the second time in the second mixing pipe enters the inner pipe through the second mixing pipe, and is sprayed at the second hole groove and the third hole groove at the nozzle, and can be sprayed at the first hole groove, thereby forming multi-point spraying, increasing the combustion area, and further improving the fuel combustion efficiency, the kiln flame spraying burner is provided, preferably, the inner part of the connecting ring is provided with a first hole groove and a placing groove, respectively, the inner part of the second mixing pipe is communicated with an inner pipe used in cooperation with the placing groove, and the top of the inner pipe is communicated with a nozzle.

[0012] In order to achieve the effect that the fuel mixed for the second time in the first mixing pipe can be transported to the nozzle through the inner pipe, and then sprayed at the second hole groove and the third hole groove, thereby being combusted, the kiln flame spraying burner is provided, preferably, the inner part of the nozzle is provided with a second hole groove, and the inner part of the nozzle is provided with a third hole groove.

[0013] In order to achieve the effect that the combustion-supporting gas mixed for the first time can enter the first mixing pipe through the first connecting pipe under the action of the fan, the first motor can drive the first rotating roller to rotate, the first rotating roller can drive the fan blade to rotate when rotating, and the fuel can be fully mixed with the combustion-supporting gas transported through the first connecting pipe when the fan blade rotates in the first mixing pipe, thereby achieving the effect that the fuel can be premixed for the first time, the kiln flame spraying burner is provided, preferably, the inner ring of the first mixing pipe is fixedly connected with a first connecting strip, one end of the first connecting strip away from the inner ring of the first mixing pipe is fixedly connected with a first fixed disc, the top of the first fixed disc is fixedly connected with a first motor, and the output end of the first motor is fixedly connected with a first rotating roller.

[0014] In order to achieve the effect that the first motor can drive the first rotating roller to rotate when the first motor is started, the first rotating roller can drive the fan blade to rotate when rotating, and the fuel in the first mixing pipe can be fully mixed with the combustion-supporting gas when the fan blade rotates, the kiln flame spraying burner is provided, preferably, the outer side of the first rotating roller is fixedly connected with a fan blade, the inner ring of the first mixing pipe is fixedly connected with an inner ring, and the inner ring of the second mixing pipe is fixedly connected with a second connecting strip.

[0015] In order to achieve the effect that after the first fully mixed fuel enters the inside of the second mixing pipe, the second motor is started, the second motor can drive the second rotating roller to rotate, the second rotating roller can drive the mixing blade to rotate when rotating, the combustion-supporting gas conveyed through the second connecting pipe can be mixed with the first mixed fuel again when the mixing blade rotates, the mixing degree of the fuel is further improved, and the fuel combustion efficiency is improved, thereby providing a kiln flame jet burner.

[0016] Compared with the prior art, the kiln flame jet burner has the beneficial effects that:

[0017] The kiln flame jet burner, through the setting of the mixing assembly, when the fuel is conveyed through the conveying pipe into the first mixing pipe, the fan is started, the fan extracts the combustion-supporting gas, so that the combustion-supporting gas enters the fan through the air conveying pipe, under the action of the fan, the combustion-supporting gas can enter the first connecting pipe inside, then the combustion-supporting gas can enter the first mixing pipe inside through the first connecting pipe, when the fuel and the combustion-supporting gas enter the first mixing pipe inside at the same time, the combustion-supporting gas and the fuel can be mixed for the first time, after the fuel and the combustion-supporting gas are mixed for the first time, the fuel enters the connecting sleeve into the spigot inside through the first mixing pipe, after entering the spigot inside, through the gathering pipe into the second mixing pipe inside, at this time, the fan at the second connecting pipe is started, the fan at the second connecting pipe can extract the combustion-supporting gas again, under the action of the fan at the second connecting pipe, the combustion-supporting gas enters the second connecting pipe inside, then enters the second mixing pipe inside through the second connecting pipe, the combustion-supporting gas entering the second mixing pipe inside and the fuel mixed for the first time are mixed for the second time, the fuel mixed for the second time enters the inner pipe inside through the second mixing pipe, then enters the nozzle through the inner pipe, and is sprayed out at the first hole slot, the second hole slot and the third hole slot, so that multi-point spraying can be formed, the flame burning area is increased, the fuel burning efficiency is improved to a certain extent, the fuel loss is reduced, through the setting of the first motor and the second motor, when the combustion-supporting gas enters the first mixing pipe inside through the first connecting pipe under the action of the fan, the first motor is started, the first motor can drive the first rotating roller to rotate, the first rotating roller can drive the fan blade to rotate when rotating, the fuel and the combustion-supporting gas in the first mixing pipe inside can be mixed for the first time when the fan blade rotates, the fuel mixed for the first time enters the spigot inside through the connecting sleeve, the fuel mixed for the first time in the spigot inside enters the second mixing pipe inside through the spigot and the gathering pipe, then the combustion-supporting gas is transported again through the second wheel connecting pipe, at the same time, the second motor starts to work, the second motor can drive the second rotating roller to rotate, the second rotating roller can drive the mixing blade to rotate when rotating, the fuel and the combustion-supporting gas in the second mixing pipe inside are mixed for the second time when the mixing blade rotates, the fuel mixed for the second time enters the nozzle through the second mixing pipe and the inner pipe, and is sprayed out at the first hole slot, the second hole slot and the third hole slot, so that multi-point spraying is formed, the flame burning area is increased to a certain extent, the fuel loss is reduced to a certain extent, the fuel burning efficiency is improved, the problem that the existing part of the flame jet burner cannot meet the needs of the users when in use because part of the fuel is not fully premixed before ignition, which can cause insufficient fuel combustion, reduce the burning efficiency, cause fuel waste, reduce the work efficiency and cannot meet the needs of the users is solved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1Structure diagram of a preferred embodiment of the kiln flame jet burner provided by the present application;

[0019] Figure 2 Structure diagram of the mixing assembly provided by the present application;

[0020] Figure 3 Structure connection diagram of the second mixing pipe and the spray head provided by the present application;

[0021] Figure 4 Structure diagram of the first mixing pipe provided by the present application;

[0022] Figure 5 Structure diagram of the second mixing pipe provided by the present application.

[0023] Reference numerals in the drawings: 1, conveying pipe; 2, first mixing pipe; 3, second mixing pipe; 4, mixing assembly; 41, fan; 42, first connecting pipe; 43, connecting sleeve; 44, insertion pipe; 5, air conveying pipe; 6, through hole; 7, fixing ring; 8, clamping pipe; 9, first connecting disc; 10, second connecting disc; 11, bolt; 12, gathering pipe; 13, second connecting pipe; 14, connecting ring; 15, first hole groove; 16, placement groove; 17, inner pipe; 18, spray head; 19, second hole groove; 20, third hole groove; 21, first connecting strip; 22, first fixing disc; 23, first motor; 24, first rotating roller; 25, fan blade; 26, inner ring; 27, second connecting strip; 28, second fixing disc; 29, second motor; 30, second rotating roller; 31, mixing blade. DETAILED DESCRIPTION

[0024] The present application is further described below in conjunction with the drawings and embodiments.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , among which Figure 1 Structure diagram of a preferred embodiment of the kiln flame jet burner provided by the present application; Figure 2 Structure diagram of the mixing assembly provided by the present application; Figure 3 Structure connection diagram of the second mixing pipe and the spray head provided by the present application; Figure 4 Structure diagram of the first mixing pipe provided by the present application; Figure 5It is the internal structure schematic view of the second mixing pipe of the application. A kiln flame jet burner comprises a conveying pipe 1, a first mixing pipe 2 communicated with the top of the conveying pipe 1, a second mixing pipe 3 arranged at the top of the first mixing pipe 2, a mixing assembly 4 arranged at the outer side of the first mixing pipe 2, the mixing assembly 4 comprising a fan 41, a first connecting pipe 42 and a connecting sleeve 43, the fan 41 arranged at the outer side of the first mixing pipe 2, the air outlet of the fan 41 communicated with the first connecting pipe 42, the end of the first connecting pipe 42 away from the fan 41 communicated with the first mixing pipe 2, and the connecting sleeve 43 arranged inside the first mixing pipe 2.

[0026] In the specific implementation process, as shown in Figure 2 and Figure 3 , the mixing assembly 4 further comprises a plug pipe 44, and the plug pipe 44 communicated with the inside of the connecting sleeve 43.

[0027] The air inlet of the fan 41 is communicated with a wind conveying pipe 5, the inside of the connecting sleeve 43 is provided with a through hole 6, the top of the connecting sleeve 43 is fixedly connected with a fixing ring 7, the top of the fixing ring 7 is provided with a clamping pipe 8, and the top of the clamping pipe 8 is communicated with the bottom of the plug pipe 44.

[0028] The outer side of the plug pipe 44 is fixedly connected with a first connecting disc 9, the top of the first connecting disc 9 is provided with a second connecting disc 10, the inside of the second connecting disc 10 is provided with a bolt 11, the outer side of the bolt 11 is threadedly connected with the inside of the first connecting disc 9, and the top of the plug pipe 44 is communicated with an aggregation pipe 12.

[0029] The top of the second connecting disc 10 is fixedly connected with the bottom of the second mixing pipe 3, the inside of the second mixing pipe 3 is communicated with a second connecting pipe 13, and the top of the second mixing pipe 3 is fixedly connected with a connecting ring 14.

[0030] The inside of the connecting ring 14 is respectively provided with a first hole groove 15 and a placing groove 16, the inside of the second mixing pipe 3 is communicated with an inner pipe 17 used in cooperation with the placing groove 16, and the top of the inner pipe 17 is communicated with a spray head 18.

[0031] The inside of the spray head 18 is provided with a second hole groove 19, and the inside of the spray head 18 is provided with a third hole groove 20.

[0032] Need to explain: in the process of conveying fuel through the conveying pipe 1, the fuel enters the first mixing pipe 2 inside the conveying pipe 1, at this time, start the fan 41, the fan 41 extracts combustion-supporting gas, so that the combustion-supporting gas enters the fan 41 through the air conveying pipe 5, under the action of the fan 41, the combustion-supporting gas can enter the first connecting pipe 42 inside, then the combustion-supporting gas can enter the first mixing pipe 2 inside through the first connecting pipe 42, when the fuel and combustion-supporting gas enter the first mixing pipe 2 inside at the same time, the combustion-supporting gas and fuel can be mixed for the first time, after the fuel and combustion-supporting gas are mixed for the first time, the fuel enters the connecting sleeve 43 through the first mixing pipe 2 into the plug pipe 44 inside, after entering the plug pipe 44 inside, through the gathering pipe 12 into the second mixing pipe 3 inside, at this time, start the conveyor at the second connecting pipe 13, the conveyor at the second connecting pipe 13 can extract the combustion-supporting gas again, the combustion-supporting gas enters the second connecting pipe 13 inside under the action of the conveyor at the second connecting pipe 13, then enters the second mixing pipe 3 inside through the second connecting pipe 13, the combustion-supporting gas entering the second mixing pipe 3 inside is mixed with the fuel mixed for the first time for the second time, the fuel mixed for the second time enters the inner pipe 17 inside through the second mixing pipe 3, then enters the nozzle 18 through the inner pipe 17, and is sprayed out at the first hole groove 15, the second hole groove 19 and the third hole groove 20, so as to form multi-point spraying, increase the flame burning area, and improve the fuel burning efficiency to a certain extent and reduce the fuel loss.

[0033] Reference Figure 4 And Figure 5 As shown in the figure, the inner ring of the first mixing pipe 2 is fixedly connected with the first connecting strip 21, the end of the first connecting strip 21 away from the inner ring of the first mixing pipe 2 is fixedly connected with the first fixed disc 22, the top of the first fixed disc 22 is fixedly connected with the first motor 23, and the output end of the first motor 23 is fixedly connected with the first rotating roller 24.

[0034] The outer side of the first rotating roller 24 is fixedly connected with the fan blade 25, the inner ring of the first mixing pipe 2 is fixedly connected with the inner ring 26, and the inner ring of the second mixing pipe 3 is fixedly connected with the second connecting strip 27.

[0035] The end of the second connecting strip 27 away from the second mixing pipe 3 is fixedly connected with the second fixed disc 28, the top of the second fixed disc 28 is fixedly connected with the second motor 29, the output end of the second motor 29 is fixedly connected with the second rotating roller 30, and the outer side of the second rotating roller 30 is fixedly connected with the mixing blade 31.

[0036] It should be noted that: under the action of the fan 41, the combustion-supporting gas enters the first mixing pipe 2 through the first connecting pipe 42, the first motor 23 is started, the first motor 23 can drive the first rotating roller 24 to rotate, the first rotating roller 24 can drive the fan blade 25 to rotate when rotating, the fan blade 25 can drive the fuel and the combustion-supporting gas in the first mixing pipe 2 to mix for the first time when rotating, the fuel mixed for the first time can enter the insert pipe 44 through the connecting sleeve 43 under the action of the first motor 23 and the fan blade 25, the fuel mixed for the first time in the insert pipe 44 can enter the second mixing pipe 3 through the insert pipe 44 and the gathering pipe 12, then the combustion-supporting gas is transported again through the second connecting pipe 13, at the same time, the second motor 29 starts to work, the second motor 29 can drive the second rotating roller 30 to rotate, the second rotating roller 30 can drive the mixing blade 31 to rotate when rotating, the fuel and the combustion-supporting gas in the second mixing pipe 3 are mixed for the second time when the mixing blade 31 rotates, the fuel mixed for the second time can enter the nozzle 18 through the second mixing pipe 3 and the inner pipe 17, then is sprayed at the first hole groove 15, the second hole groove 19 and the third hole groove 20.

[0037] The working principle of the kiln flame spraying burner provided by the application is as follows:

[0038] When the fuel is transported through the conveying pipe 1, the fuel enters the first mixing pipe 2, at this time, the fan 41 is started, the fan 41 extracts the combustion-supporting gas, so that the combustion-supporting gas enters the fan 41 through the air conveying pipe 5, under the action of the fan 41, the combustion-supporting gas can enter the first connecting pipe 42, then the combustion-supporting gas can enter the first mixing pipe 2 through the first connecting pipe 42, when the fuel and the combustion-supporting gas enter the first mixing pipe 2 at the same time, the combustion-supporting gas and the fuel can be mixed for the first time, after the fuel and the combustion-supporting gas are mixed for the first time, the fuel enters the connecting sleeve 43 through the first mixing pipe 2 and enters the plug pipe 44, after entering the plug pipe 44, it enters the second mixing pipe 3 through the gathering pipe 12, at this time, the conveyor at the second connecting pipe 13 is started, the conveyor at the second connecting pipe 13 can extract the combustion-supporting gas again, under the action of the conveyor at the second connecting pipe 13, the combustion-supporting gas enters the second connecting pipe 13, then enters the second mixing pipe 3 through the second connecting pipe 13, the combustion-supporting gas entering the second mixing pipe 3 is mixed with the fuel mixed for the first time for the second time, the fuel mixed for the second time enters the inner pipe 17 through the second mixing pipe 3, then enters the spray head 18 through the inner pipe 17, and is sprayed at the first hole groove 15, the second hole groove 19 and the third hole groove 20, so that multi-point spraying can be formed, the flame burning area is increased, the fuel burning efficiency is improved to a certain extent, and the fuel loss is reduced, when the combustion-supporting gas enters the first mixing pipe 2 through the first connecting pipe 42 under the action of the fan 41, the first motor 23 is started, the first motor 23 can drive the first rotating roller 24 to rotate, the first rotating roller 24 can drive the fan blade 25 to rotate when rotating, the fan blade 25 can drive the fuel and the combustion-supporting gas in the first mixing pipe 2 to mix for the first time when rotating, the fuel mixed for the first time under the action of the first motor 23 and the fan blade 25 can enter the plug pipe 44 through the connecting sleeve 43, the fuel mixed for the first time entering the plug pipe 44 enters the second mixing pipe 3 through the plug pipe 44 and the gathering pipe 12, then the combustion-supporting gas is transported again through the second connecting pipe 13, at the same time, the second motor 29 starts to work, the second motor 29 can drive the second rotating roller 30 to rotate, the second rotating roller 30 can drive the mixing blade 31 to rotate when rotating, the fuel and the combustion-supporting gas in the second mixing pipe 3 are mixed for the second time when the mixing blade 31 rotates, the fuel mixed for the second time enters the spray head 18 through the second mixing pipe 3 and the inner pipe 17, and is sprayed at the first hole groove 15, the second hole groove 19 and the third hole groove 20.

[0039] The above description is only an embodiment of the present application, and does not limit the patent range of the present application, any equivalent structure or equivalent process transformation obtained by using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A kiln burner, characterized in that, The system includes a conveying pipe (1), the top of which is connected to a first mixing pipe (2), the top of which is provided with a second mixing pipe (3), and a mixing assembly (4) on the outside of the first mixing pipe (2). The mixing assembly (4) includes a fan (41), a first connecting pipe (42), and a connecting sleeve (43). The fan (41) is located on the outside of the first mixing pipe (2), and the outlet of the fan (41) is connected to the first connecting pipe (42). The end of the first connecting pipe (42) away from the fan (41) is connected to the first mixing pipe (2). A connecting sleeve (43) is provided inside the first mixing pipe (2). A through hole (6) is provided inside the connecting sleeve (43), and a fixing ring (7) is fixedly connected to the top of the connecting sleeve (43). A clamping tube (8) is provided on the top of the fixing ring (7). A first... A connecting strip (21) is fixedly connected to a first fixed disk (22) at one end away from the inner ring of the first mixing pipe (2). A first motor (23) is fixedly connected to the top of the first fixed disk (22). A first rotating roller (24) is fixedly connected to the output end of the first motor (23). A fan blade (25) is fixedly connected to the outer side of the first rotating roller (24). An inner ring (26) is fixedly connected to the inner ring of the first mixing pipe (2). A second connecting strip (27) is fixedly connected to the inner ring of the second mixing pipe (3). A second fixed disk (28) is fixedly connected to one end of the second connecting strip (27) away from the second mixing pipe (3). A second motor (29) is fixedly connected to the top of the second fixed disk (28). A second rotating roller (30) is fixedly connected to the output end of the second motor (29). A mixing blade (31) is fixedly connected to the outer side of the second rotating roller (30).

2. The kiln burner according to claim 1, characterized in that, The hybrid assembly (4) also includes a cannula (44), and the cannula (44) is internally connected to the connecting sleeve (43).

3. The kiln burner according to claim 2, characterized in that, The air inlet of the fan (41) is connected to the air supply pipe (5), and the top of the clamp (8) is connected to the bottom of the insertion pipe (44).

4. The kiln burner according to claim 2, characterized in that, The outer side of the insertion tube (44) is fixedly connected to a first connecting plate (9), and a second connecting plate (10) is provided on the top of the first connecting plate (9). A bolt (11) is provided inside the second connecting plate (10), and the outer side of the bolt (11) is threadedly connected to the inside of the first connecting plate (9). The top of the insertion tube (44) is connected to a gathering tube (12).

5. The kiln burner according to claim 4, characterized in that, The top of the second connecting plate (10) is fixedly connected to the bottom of the second mixing tube (3), the interior of the second mixing tube (3) is connected to the second connecting tube (13), and the top of the second mixing tube (3) is fixedly connected to the connecting ring (14).

6. The kiln burner according to claim 5, characterized in that, The connecting ring (14) has a first hole groove (15) and a placement groove (16) respectively. The second mixing tube (3) is connected to an inner tube (17) that works with the placement groove (16). The top of the inner tube (17) is connected to a nozzle (18).

7. The kiln burner according to claim 6, characterized in that, The nozzle (18) has a second slot (19) inside and a third slot (20) inside.

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