CN217559811U - Combustor with double-layer flame tube structure - Google Patents
Combustor with double-layer flame tube structure Download PDFInfo
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- CN217559811U CN217559811U CN202220887631.XU CN202220887631U CN217559811U CN 217559811 U CN217559811 U CN 217559811U CN 202220887631 U CN202220887631 U CN 202220887631U CN 217559811 U CN217559811 U CN 217559811U
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Abstract
The utility model relates to a combustor field, in particular to combustor with double-deck flame tube structure locates drying drum one end, its characterized in that: including interior flame tube, outer flame tube, spray gun subassembly, the spray gun subassembly is located in the interior flame tube and is formed the flame head towards spraying flame in the drying drum, outside flame tube cover was located in the flame tube, and made interior flame tube outer wall and outer flame tube inner wall form annular ventilation clearance, let in cold air by interior flame tube and burn to the spray gun subassembly, outer flame tube lets in cold air and sends out and form one and encircle in the outlying air cooling protective layer of flame head towards drying drum by annular ventilation clearance, makes old and useless pitch material temperature no longer than firing temperature, but can keep certain high temperature for further accelerating the speed that peels off and drop.
Description
Technical Field
The utility model relates to a combustor field, in particular to combustor with double-deck flame tube structure.
Background
The regeneration of asphalt concrete is to directly heat the waste asphalt concrete in a roller flame zone through an independent regeneration drying roller and a burner, to dry and heat in a material lifting zone through heat exchange drying, to soften the asphalt adhered on the surface, to recover the characteristics of the original asphalt mixture, and to mix and stir the asphalt mixture with new aggregate and asphalt according to a certain proportion. But the pitch of old and useless asphalt concrete surface adhesion heats the back of softening, has stronger viscidity, and regeneration drying drum can accumulate the adhesion after using a period, and long-term not clean can cause the guide not smooth, and the heat transfer effect is poor, and the barrel is overweight overload, and the sealed department leaks the material scheduling problem. The existing common cleaning mode is that under the normal temperature environment in the regeneration drying roller, the manual work enters into the cleaning, but under the normal temperature state, the waste asphalt concrete of inside adhesion is comparatively hard under normal temperature, needs to be with the help of special tools, and the work load is big to the barrel is damaged easily to the operation is improper, influences the cylinder life-span. In addition, the conventional burner is used for baking the roller by small fire, so that the temperature rise of the bonding material in a flame area is easily overhigh, the roller is ignited, and potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides a burner with a double-layer jacket flame tube.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a combustor with double-deck flame tube structure locates drying drum one end, includes interior flame tube, outer flame tube, spray gun subassembly, the spray gun subassembly is located in the interior flame tube and is formed the flame head towards spray flame in the drying drum, and outer flame tube cover is located outside the interior flame tube, and makes interior flame tube outer wall and outer flame tube inner wall form annular ventilation clearance, lets in cold air by interior flame tube and burns to the spray gun subassembly, and outer flame tube lets in cold air and sends out and form one and encircle in flame head outlying air cooling protective layer towards the drying drum in by annular ventilation clearance.
Furthermore, the flame tube device also comprises an air pipe and a blower, wherein one end of the air pipe is connected with the outer flame tube, and the other end of the air pipe is connected with the blower.
Further, interior flame tube one end links to each other with the tuber pipe, the air-blower blows cold air and spray gun subassembly along the tuber pipe in to the interior flame tube and burns, be equipped with the air intake that is connected to the external world on the outer flame tube, cold air gets into annular ventilation gap along the air intake.
Furthermore, a first air flow adjusting mechanism is arranged at the air inlet and used for adjusting the size of the air inlet, and the first air flow adjusting mechanism is a pneumatic adjusting device or an electric adjusting device.
Furthermore, the inner flame tube is erected in the outer flame tube and arranged at intervals with the air pipe, so that annular gaps communicated with the annular ventilation gap are formed between the inner flame tube and the outer flame tube at intervals.
Further, outer flame tube one side is equipped with second air current adjustment mechanism, second air current adjustment mechanism includes air door adjusting device, drive arrangement, air door adjusting device includes air door valve block, air door connecting rod, the air door valve block is connected with the air door connecting rod, the air door valve block is located in the outer flame tube, drive arrangement is connected with the air door connecting rod and can drives the air door valve block reciprocating motion between inner flame tube and the outer flame tube, makes the air door valve block change the size of annular breach, and the cold air that makes the air-blower blow out can partly follow in the annular breach gets into annular ventilation clearance, and flame tube and the burning of spray gun subassembly in outer flame tube entering can be followed to another part cold air.
Further, the driving device is a cylinder or a servo motor.
Further, interior flame section of thick bamboo includes venturi section, straight section of thick bamboo section, holds together the fire ring, the one end that the venturi section diameter is little links to each other with the tuber pipe, and the one end that the venturi section diameter is big links to each other with straight section of thick bamboo section, hold together the fire ring and locate in the interior flame section of thick bamboo and be connected with the spray gun subassembly.
Furthermore, the air conditioner also comprises a silencer, and one end of the air blower is connected with the silencer.
Furthermore, the device also comprises a fuel pipeline, wherein a support is arranged at the lower end of the air pipe, and the fuel pipeline is arranged on the support.
Compared with the prior art, the utility model has the advantages that the double-layer flame tube structure is arranged, the action of the double-layer flame tube structure is that the spray gun component is connected with the inner flame tube to complete the action of spraying flame, so that the flame can bake the inner wall of the drying roller, the waste asphalt material adhered on the wall of the roller is rapidly heated up, the viscosity is reduced under the high-temperature state, and the waste asphalt material is gradually peeled off and falls off under the influence of the self rotary vibration of the drying roller; injecting cold air into the annular ventilation gap formed by the outer flame tube and the inner flame tube to form a cooling protective layer on the outer layer of the jet flame, wherein the waste asphalt material which is cooled and adhered to the wall of the drying drum and is rapidly heated up due to the flame baking of the burner does not exceed the ignition temperature, so that the waste asphalt material in the drying drum can keep a certain high temperature, and the stripping and falling speed is further accelerated.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic view of a connection state between the inner flame tube and the outer flame tube according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of the second embodiment of the present invention.
Fig. 4 is a schematic view of a connection state between the inner flame tube and the outer flame tube according to the second embodiment of the present invention.
Fig. 5 is an enlarged schematic view of the structure at the position a of the present invention.
The labels in the figure correspond to the following: 1. the burner comprises an inner flame tube, 11 annular ventilation gaps, 12 Venturi tube sections, 121 straight tube sections, 122 fire gathering rings, 2 outer flame tubes, 21 air inlets, 211 first air flow adjusting mechanisms, 22 annular notches, 23 second air flow adjusting mechanisms, 231 air door adjusting devices, 232 driving devices, 233 air door valve plates, 234 air door connecting rods, 3 spray gun assemblies, 31 flame heads, 4 air pipes, 5 blowers, 51 silencers and 6 fuel pipelines.
Detailed Description
The present invention is further described below in the following with reference to specific embodiments.
Referring to fig. 1 to 5, the burner with a double-layer jacket structure comprises an inner flame tube 1, an outer flame tube 2, a spray gun assembly 3, an air pipe 4 and a blower 5.
In the first embodiment, as shown in fig. 1 to 2, the spray gun assembly 3 is disposed in the inner flame tube 1 and sprays flame into the drying drum to form a flame head 31, one end of the air duct 4 is connected to the outer flame tube 2, the other end is connected to the blower 5, the outer flame tube 2 is sleeved outside the inner flame tube 1, and an annular ventilation gap 11 is formed between the outer wall of the inner flame tube 1 and the inner wall of the outer flame tube 2, cold air is introduced from the inner flame tube 1 to the spray gun assembly 3 for combustion, and cold air introduced from the outer flame tube 2 is sent out from the annular ventilation gap 11 into the drying drum and forms an air cooling protective layer surrounding the periphery of the flame head 31; interior flame tube 1 one end links to each other with tuber pipe 4, air-blower 5 blows cold air and the burning of spray gun subassembly 3 in the interior flame tube 1 along tuber pipe 4, be equipped with on the outer flame tube 2 and be connected to external air intake 21, cold air gets into annular ventilation clearance 11 along air intake 21, air intake 21 department is equipped with first air current adjustment mechanism 211, first air current adjustment mechanism 211 is used for adjusting the size of air intake 21, first air current adjustment mechanism 211 is pneumatic adjusting device or electric control device. Cold air is blown forwards along the direction of the inner flame tube 1 through the branch pipe by the blower 5, the cold air enters the spray gun assembly 3 and the flame head 31 to be combusted, waste asphalt materials adhered to the inner wall of the drying roller are baked through the flame head 31, meanwhile, the size of the air inlet 21 of the outer flame tube 2 is adjusted by the first air flow adjusting mechanism 211, so that the external cold air enters the annular ventilation gap 11 along the air inlet 21 and is sent forwards to the outer layer of the flame head 31 along the annular ventilation gap 11, a layer of air cooling protective layer is formed on the outer layer of the flame head 31, and the cooling effect is achieved to prevent the waste asphalt materials from exceeding the ignition temperature due to continuous combustion of the flame head 31; the double-layer flame tube structure is used for connecting the spray gun component 3 through the inner flame tube 1 to finish the action of spraying flame, so that the flame can bake the inner wall of the drying drum, the waste asphalt material adhered to the drum wall is quickly heated, the viscosity is reduced in a high-temperature state, and the waste asphalt material is gradually peeled off under the influence of the self-rotation vibration of the drying drum; injecting cold air into the annular ventilation gap 11 formed by the outer flame tube 2 and the inner flame tube 1 to form a cooling protective layer on the outer layer of the jet flame, wherein the waste asphalt material which is cooled and adhered to the wall of the drying drum and is rapidly heated up due to the flame baking of the burner does not exceed the ignition temperature, so that the waste asphalt material in the drying drum can keep a certain high temperature, and the stripping and falling speed is further accelerated.
Interior flame tube 1 includes venturi section 12, straight section of thick bamboo 121, holds together fire ring 122, the one end that venturi section 12 diameter is little links to each other with tuber pipe 4, and the one end that venturi section 12 diameter is big links to each other with straight section of thick bamboo 121, hold together fire ring 122 and locate in the flame tube 1 and be connected with spray gun subassembly 3. Still include drum muffler 51, fuel pipe 6, the one end that air-blower 5 was equipped with the impeller is connected with muffler 51, reduces the noise of air-blower 5 during operation, the 4 lower extremes of tuber pipe are equipped with the support, fuel pipe 6 locates on the support, provides fuel for spray gun subassembly 3.
In the second embodiment, as shown in fig. 3 to 5, the inner flame tube 1 is clamped in the outer flame tube 2 and spaced from the air duct 4, so that an annular gap 22 communicated with the annular ventilation gap 11 is formed between the inner flame tube 1 and the outer flame tube 2 at a spacing; outer flame tube 2 one side is equipped with second air current adjustment mechanism 23, second air current adjustment mechanism 23 includes air door adjusting device 231, drive arrangement 232, air door adjusting device 231 includes air door valve block 233, air door connecting rod 234, air door valve block 233 is connected with air door connecting rod 234, air door valve block 233 is located in outer flame tube 2, drive arrangement 232 is connected with air door connecting rod 234 and can drive air door valve block 233 including flame tube 1 and outer flame tube 2 between reciprocating motion, makes air door valve block 233 change the size of annular breach 22, makes in the cold air that air-blower 5 blew out can partly follow annular breach 22 entering annular ventilation clearance 11, another part cold air can follow outer flame tube 2 and advance interior flame tube 1 and the burning of spray gun subassembly 3. Blow the cold air through the air blower 5, some cold air gets into outer flame tube 2 along the tuber pipe 4 and continues to burn through inner flame tube 1 and the flame head 31 of spray gun subassembly 3 forward, some cold air then can enter into annular ventilation clearance 11 through annular breach 22 and forward through flame head 31 skin and form one deck air cooling protective layer with flame head 31 skin, thereby reach the refrigerated effect, make the old and useless pitch material on the drying drum can not exceed ignition temperature, drive arrangement 232 is cylinder or servo motor, move through cylinder or servo motor control valve 233, thereby change annular breach 22's size.
The difference between the first embodiment and the second embodiment is that the cool air entering the annular ventilation gap 11 in the first embodiment is the cool air entering the outside from the air inlet 21 of the outer flame tube 2, and the cool air entering the annular ventilation gap 11 in the second embodiment is the cool air from the blower 5; in the first embodiment, the inner flame tube 1 is connected with the air pipe 4, and the cold air of the blower 5 is directly blown into the inner flame tube 1, while in the second embodiment, the outer flame tube 2 is connected with the air pipe 4, and the annular gap 22 is formed by the inner flame tube 1 and the outer flame tube 2 which are arranged at intervals.
The working principle of the burner with the double-layer flame tube structure is as follows:
the waste asphalt material has the physical characteristics that the viscosity is reduced along with the increase of the temperature, and the expansion rate is high; spraying flame into the drying drum through the spray gun assembly 3 to rapidly heat the waste asphalt material adhered to the drum wall, reducing the viscosity in a high-temperature state, gradually expanding and layering the volume, and gradually stripping and falling the waste asphalt material by adding the rotary vibration of the drum; cold air is blown towards the direction of the inner flame tube 1 by the blower 5, and the cold air and the flame head 31 enter the outside through the air inlet 21 of the outer flame tube 2 in the first combustion embodiment, enters the annular ventilation gap 11, and is sent to the outer layer of the flame head 31 to form an air cooling protective layer on the outer layer of the flame head 31, so that the waste asphalt materials which are adhered to the wall of the drying drum and rapidly heated due to the baking of the flame head 31 are cooled, and the temperature of the waste asphalt materials cannot exceed the ignition temperature; in the second embodiment, the cold air entering the annular ventilation gap 11 is blown out by the blower 5, a part of the cold air of the blower 5 enters the inner flame tube 1 from the outer flame tube 2 and is combusted with the lance assembly 3, and a part of the cold air enters the annular ventilation gap 11 from the annular notch 22 and forms an air cooling protective layer with the flame head 31.
The above-mentioned only be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and all utilize this design right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.
Claims (10)
1. The utility model provides a combustor with double-deck flame tube structure locates drying drum one end, its characterized in that: including interior flame tube, outer flame tube, spray gun subassembly, the spray gun subassembly is located in the interior flame tube and is formed the flame head towards spraying flame in the drying drum, and outer flame tube cover is located outside the interior flame tube, and makes interior flame tube outer wall and outer flame tube inner wall form annular ventilation clearance, lets in cold air by interior flame tube and burns to the spray gun subassembly, and outer flame tube lets in cold air and sends out and form one and encircle in the air cooling protective layer of flame head outlying towards the drying drum by annular ventilation clearance.
2. The burner with a double-layer flame tube structure as claimed in claim 1, wherein: the flame tube flame-out device is characterized by further comprising an air pipe and a blower, wherein one end of the air pipe is connected with the outer flame tube, and the other end of the air pipe is connected with the blower.
3. The burner with a double-layer flame tube structure as claimed in claim 2, wherein: interior flame one end links to each other with the tuber pipe, the air-blower blows cold air and the burning of spray gun subassembly in the interior flame of interior flame along the tuber pipe, be equipped with on the outer flame and be connected to external air intake, cold air gets into annular ventilation clearance along the air intake.
4. The burner with a double-layer flame tube structure as claimed in claim 3, wherein: the air inlet is provided with a first air flow adjusting mechanism, the first air flow adjusting mechanism is used for adjusting the size of the air inlet, and the first air flow adjusting mechanism is a pneumatic adjusting device or an electric adjusting device.
5. The burner with double-layer flame tube structure as claimed in claim 2, wherein: the inner flame tube is erected in the outer flame tube and is arranged at intervals with the air pipe, so that annular gaps communicated with the annular ventilation gaps are formed between the inner flame tube and the outer flame tube at intervals.
6. The burner with double-layer flame tube structure as claimed in claim 5, wherein: outer flame tube one side is equipped with second air current adjustment mechanism, second air current adjustment mechanism includes air door adjusting device, drive arrangement, air door adjusting device includes air door valve block, air door connecting rod, the air door valve block is connected with the air door connecting rod, the air door valve block is located in the outer flame tube, drive arrangement is connected with the air door connecting rod and can drive air door valve block including between flame tube and the outer flame tube reciprocating motion, makes the size of air door valve block change annular breach, and the cold air that makes the air-blower blow out can partly follow in annular breach gets into annular ventilation clearance, and another part cold air can follow outer flame tube and get into in flame tube and the burning of spray gun subassembly.
7. The burner with a double-layer flame tube structure as claimed in claim 6, wherein: the driving device is a cylinder or a servo motor.
8. The burner with a double-layer flame tube structure as claimed in claim 1, wherein: the inner flame tube comprises a Venturi tube section, a straight tube section and a fire gathering ring, wherein one end of the Venturi tube section with a small diameter is connected with the air pipe, one end of the Venturi tube section with a large diameter is connected with the straight tube section, and the fire gathering ring is arranged in the inner flame tube and connected with the spray gun assembly.
9. The burner with a double-layer flame tube structure as claimed in claim 2, wherein: still include the muffler, air-blower one end is connected with the muffler.
10. The burner with double-layer flame tube structure as claimed in claim 2, wherein: the fuel pipeline is arranged on the support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220887631.XU CN217559811U (en) | 2022-04-18 | 2022-04-18 | Combustor with double-layer flame tube structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220887631.XU CN217559811U (en) | 2022-04-18 | 2022-04-18 | Combustor with double-layer flame tube structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217559811U true CN217559811U (en) | 2022-10-11 |
Family
ID=83472556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220887631.XU Active CN217559811U (en) | 2022-04-18 | 2022-04-18 | Combustor with double-layer flame tube structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217559811U (en) |
-
2022
- 2022-04-18 CN CN202220887631.XU patent/CN217559811U/en active Active
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