Low-pressure atomizing burner for regenerating, drying and heating asphalt mixture

Abstract

The utility model relates to the technical field of asphalt mixture regeneration, and discloses a low-pressure atomizing burner for asphalt mixture regeneration, drying and heating, which comprises a burner barrel, and an air inlet pipe is fixed at the rear end of the right side of the burner barrel. When the low-pressure atomizing burner for regenerating, drying and heating the asphalt mixture is used, a filter screen I and a filter screen II are arranged in a connecting pipe between an air inlet pipe and an external pipe; by means of the first filter screen and the second filter screen, some impurities and the like in auxiliary combustion air conveyed to the interior of the combustor barrel from the outside can be filtered in an auxiliary mode, the purity of the interior of gas is improved, then the purity of combustion flames is improved, and by means of double filtration of the two filter assemblies, the gas filtration and purification effect can be improved; and auxiliary purification treatment can be conveniently carried out on air conveyed into the combustor, and the problem that purification treatment on the air conveyed into the combustor is not convenient is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt mixture regeneration, in particular to a low-pressure atomizing burner for regeneration, drying and heating of asphalt mixture. Background Art

[0002] Asphalt mixture regeneration refers to the mixture formed by remixing the old asphalt pavement with regeneration agent, new asphalt material, new aggregate, etc. in a certain proportion after the old asphalt pavement is excavated, recycled, crushed and screened. The excavated and recycled asphalt mixture is introduced into the drying drum of the equipment for heating treatment to restore or improve its performance so that it can be used again in the road construction process. A low-pressure atomizing burner is needed to burn and heat the drying drum. The low-pressure atomizing burner is a common combustion device. Its working principle is mainly to use low-pressure air or steam to atomize and burn the fuel, which can not only improve the combustion efficiency but also reduce pollution emissions.

[0003] However, when a low-pressure atomizing burner for regenerating, drying and heating asphalt mixture is used to dry and heat the asphalt mixture, the air transported by the air supply component to the interior of the atomizing burner generally contains some impurities. When introduced into the burner for auxiliary combustion, this will cause the combustion flame to be impure, affecting the combustion and heating effect. This is a disadvantage and it is not convenient to perform auxiliary purification treatment on the air transported into the burner.

[0004] Now, a new type of low-pressure atomizing burner for asphalt mixture regeneration, drying and heating is proposed to solve the above-mentioned shortcomings. Utility Model Content

[0005] The utility model aims to provide a low-pressure atomizing burner for regenerating, drying and heating asphalt mixture, so as to solve the problem in the above-mentioned background technology that it is inconvenient to purify the air transported into the burner.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-pressure atomizing burner for asphalt mixture regeneration, drying and heating, comprising a burner cylinder, an air inlet pipe is fixed to the rear end of the right side of the burner cylinder, and an external pipe is arranged on the right side of the air inlet pipe, and a filtering structure for purifying the intake air is arranged between the air inlet pipe and the external pipe;

[0007] The filtering structure includes a connecting pipe, filter screen 1, filter screen 2, connecting flange 1, connecting flange 2 and a slot. A connecting pipe is arranged between the air inlet pipe and the external pipe. Connecting flange 1 is welded and fixed to the right side of the outside of the air inlet pipe and the left side of the outside of the external pipe respectively. Connecting flange 2 is welded and fixed to both sides of the outside of the connecting pipe respectively. Slots are respectively provided inside the two sides of the connecting pipe. Filter screen 2 is arranged inside the left side of the connecting pipe, and filter screen 1 is arranged inside the right side of the connecting pipe.

[0008] Furthermore, the connecting flange 1 and the connecting flange 2 are respectively installed and connected by bolts and nuts.

[0009] Furthermore, the external pipe is connected to the interior of the air inlet pipe through a connecting pipe.

[0010] Preferably, a fixing ring is fixed to the top of the burner cylinder, and a left inner groove is provided inside the left side of the fixing ring, a left cover plate is provided inside the left inner groove, a fixing foot one is fixed to the right side of the rear end of the left cover plate, a right inner groove is opened inside the right side of the fixing ring, and a right cover plate is provided inside the right inner groove, a fixing foot two is fixed to the left side of the rear end of the right cover plate, handles are fixed to the left side of the left cover plate and the right side of the right cover plate respectively, and the fixing ring is communicated with the interior of the burner cylinder.

[0011] Furthermore, the first fixing leg is hingedly connected to the right side of the rear end of the left inner groove, and the second fixing leg is hingedly connected to the left side of the rear end of the right inner groove.

[0012] Furthermore, the left cover plate and the right cover plate are symmetrically arranged with respect to a vertical center line of the fixing ring.

[0013] Preferably, fixing ears are welded and fixed on both sides of the burner cylinder, support cylinders are respectively provided at the bottom ends of both sides of the burner cylinder, and a plug rod is inserted into the top end of the support cylinder, a hole is opened inside the right side of the plug rod, and a plurality of groups of holes are opened at equal intervals inside the plug rod, a threaded sleeve is fixed on the top end of the right side of the support cylinder, and a locking rod is rotatably connected inside the threaded sleeve, a mounting plate is welded and fixed to the top end of the plug rod, and the top end of the mounting plate is installed and fixed between the bottom end of the fixing ear.

[0014] Preferably, an oil delivery pipe is fixedly passed through the bottom end of the burner cylinder, a base is fixedly provided at the bottom end of the inside of the burner cylinder, a gasification oil nozzle is fixedly provided at the top end of the base, a combustion stabilizing hood is fixedly provided at the top end of the gasification oil nozzle, the top end of the oil delivery pipe passes through the inside of the burner cylinder and is fixedly connected to the bottom end of the gasification oil nozzle, and air outlet holes are respectively provided at both ends of the inside of the burner cylinder.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the low-pressure atomizing burner for heating and drying asphalt mixture regeneration not only realizes the convenience of auxiliary purification of the air transported into the burner, realizes the convenience of auxiliary sealing and dust prevention of the inside of the burner, but also realizes the convenience of adjusting the heating height of the burner;

[0016] (1) A burner cylinder, an air inlet pipe, an external pipe, a filter screen 1, a filter screen 2, a connecting flange plate 1, a slot and a connecting flange plate 2 are provided. When the burner is in use, a filter screen 1 and a filter screen 2 are installed in the connecting pipe between the air inlet pipe and the external pipe. The filter screen 1 and the filter screen 2 can be used to filter some impurities in the auxiliary combustion air transported from the outside to the inside of the burner cylinder, thereby improving the purity of the gas inside and further improving the purity of the combustion flame. The two sets of filter components are provided for double filtering, which can improve the filtering and purification effect of the gas, and facilitate the auxiliary purification of the air transported into the burner;

[0017] (2) The burner barrel, the fixing ring, the left cover plate, the handle, the fixing foot 1, the left inner groove, the right cover plate, the fixing foot 2 and the right inner groove are provided. When the burner is used, the left cover plate and the right cover plate provided on both sides of the rear end of the fixing ring can be respectively hinged by the fixing foot 1 and the fixing foot 2, and rotated forward until they are locked and closed inside the fixing ring, so that the inside of the combustion opening at the top of the burner barrel can be auxiliary sealed, which is convenient for auxiliary sealing and dust prevention of the inside of the burner;

[0018] (3) By providing a support tube, a burner cylinder, a mounting plate, a fixing ear, a socket, a locking rod, a threaded sleeve and an insertion rod, when the burner is installed and used, the locking rods on the support tube can be respectively screwed outward from the inside of the threaded sleeve, so that the locking rods are withdrawn from the inside of the socket, and the insertion rods can be unlocked inside the support tube. After that, the burner cylinder can be moved up and down, and then the insertion rods can be driven to move up and down inside the support tube. By screwing the locking rods into the sockets at different positions, the combustion height of the burner can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the top view of the burner cylinder of the utility model;

[0021] Figure 3 This is a schematic diagram of the enlarged side view of the connecting pipe of the utility model;

[0022] Figure 4 It is a schematic diagram of the top view of the left cover plate of the utility model.

[0023] In the figure: 1. Support cylinder; 2. Burner cylinder; 3. Fixing ring; 4. Left cover; 5. Air outlet; 6. Combustion stabilizing hood; 7. Gasification oil nozzle; 8. Base; 9. Oil delivery pipe; 10. Fixing ear; 11. Mounting plate; 12. Air inlet pipe; 13. Connecting pipe; 14. External pipe; 15. Filter screen 1; 16. Filter screen 2; 17. Plug hole; 18. Lock rod; 19. Threaded sleeve; 20. Plug rod; 21. Connecting flange 1; 22. Connecting flange 2; 23. Slot; 24. Left inner groove; 25. Handle; 26. Fixing foot 1; 27. Right cover; 28. Fixing foot 2; 29. ​​Right inner groove. DETAILED DESCRIPTION

[0024] 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.

[0025] Example 1: Please refer to Figure 1-4 A low-pressure atomizing burner for regeneration, drying and heating of asphalt mixture comprises a burner barrel 2, an air inlet pipe 12 is fixed to the rear end of the right side of the burner barrel 2, and an external pipe 14 is arranged on the right side of the air inlet pipe 12, and a filtering structure for purifying the intake air is arranged between the air inlet pipe 12 and the external pipe 14;

[0026] The filtering structure includes a connecting pipe 13, a filter screen 15, a filter screen 16, a connecting flange 121, a connecting flange 22 and a slot 23. The connecting pipe 13 is arranged between the air inlet pipe 12 and the external pipe 14. The connecting flange 121 is welded and fixed to the right side of the outside of the air inlet pipe 12 and the left side of the outside of the external pipe 14 respectively. The connecting flange 22 is welded and fixed to the two sides of the outside of the connecting pipe 13 respectively. The insides of the two sides of the connecting pipe 13 are respectively provided with slots 23. The inside of the left side of the connecting pipe 13 is provided with a filter screen 16, and the inside of the right side of the connecting pipe 13 is provided with a filter screen 15. The connecting flange 121 and the connecting flange 22 are respectively installed and connected by bolts and nuts. The external pipe 14 is connected to the inside of the air inlet pipe 12 through the connecting pipe 13;

[0027] Specifically, Figure 1-Figure 3 As shown, filter screen 15 and filter screen 2 16 are installed in the connecting pipe 13 between the air inlet pipe 12 and the external pipe 14. The filter screen 15 and filter screen 2 16 can be used to filter some impurities in the auxiliary combustion air transported from the outside to the burner cylinder 2, thereby improving the purity of the gas inside and the purity of the combustion flame. The double filtering of the two sets of filter components can improve the filtering and purification effect of the gas.

[0028] Embodiment 2: A fixing ring 3 is fixed to the top of the burner barrel 2, and a left inner groove 24 is provided inside the left side of the fixing ring 3, a left cover plate 4 is provided inside the left inner groove 24, a fixing foot 1 26 is fixed to the right side of the rear end of the left cover plate 4, a right inner groove 29 is provided inside the right side of the fixing ring 3, a right cover plate 27 is provided inside the right inner groove 29, a fixing foot 28 is fixed to the left side of the rear end of the right cover plate 27, a handle 25 is fixed to the left side of the left cover plate 4 and the right side of the right cover plate 27, respectively, the fixing ring 3 is connected to the inside of the burner barrel 2, the fixing foot 1 26 is hingedly connected to the right side of the rear end of the left inner groove 24, the fixing foot 28 is hingedly connected to the left side of the rear end of the right inner groove 29, and the left cover plate 4 and the right cover plate 27 are symmetrically arranged about the vertical center line of the fixing ring 3;

[0029] Specifically, Figure 1 and Figure 4 As shown, the left cover plate 4 and the right cover plate 27 provided on both sides of the rear end of the fixing ring 3 can be respectively hinged by the fixing foot 1 26 and the fixing foot 2 28, and rotated forward until they are snapped into and closed inside the fixing ring 3, so as to assist in sealing the inside of the combustion opening at the top of the burner cylinder 2 to prevent foreign matter from entering.

[0030] Embodiment 3: Fixing ears 10 are welded and fixed on both sides of the burner cylinder 2, and support cylinders 1 are respectively provided at the bottom ends of both sides of the burner cylinder 2, and a plug rod 20 is inserted inside the top of the support cylinder 1, and a plug hole 17 is opened inside the right side of the plug rod 20, and multiple groups of plug holes 17 are opened inside the plug rod 20 at equal intervals, a threaded sleeve 19 is fixed on the top of the right side of the support cylinder 1, and a locking rod 18 is rotatably connected inside the threaded sleeve 19, and a mounting plate 11 is welded and fixed on the top of the plug rod 20, and the top of the mounting plate 11 is fixed between the bottom end of the fixing ear 10;

[0031] Specifically, Figure 1 As shown, the locking rod 18 on the support tube 1 can be respectively screwed outward from the inside of the threaded sleeve 19, so that the locking rod 18 is withdrawn from the inside of the insertion hole 17, and the insertion rod 20 can be unlocked inside the support tube 1. After that, the burner cylinder 2 can be moved up and down, and then the insertion rod 20 can be driven to move up and down inside the support tube 1. By screwing the locking rod 18 into the inside of the insertion hole 17 at different positions, the combustion height of the burner can be adjusted.

[0032] An oil delivery pipe 9 is fixedly passed through the bottom of the burner cylinder 2, a base 8 is fixedly passed through the bottom of the burner cylinder 2, a vaporized oil nozzle 7 is fixedly passed through the top of the base 8, a combustion stabilizing cover 6 is fixedly passed through the top of the vaporized oil nozzle 7, the top of the oil delivery pipe 9 passes through the interior of the burner cylinder 2 and is fixedly connected to the bottom of the vaporized oil nozzle 7, and air outlet holes 5 are respectively provided at both ends of the interior of the burner cylinder 2.

[0033] Working principle: When the low-pressure atomizing burner of the utility model is in use, a filter screen 15 and a filter screen 2 16 are installed in the connecting pipe 13 between the air inlet pipe 12 and the external pipe 14. The filter screen 15 and the filter screen 2 16 can be used to filter some impurities in the auxiliary combustion air transported from the outside to the burner cylinder 2 to improve the purity of the gas inside and the purity of the combustion flame. After the use of the burner is over, the left cover plate 4 and the right cover plate 27 set on both sides of the rear end of the fixing ring 3 can be respectively hinged by the fixing foot 1 26 and the fixing foot 2 28, and rotated forward until they are snapped into and closed in the fixing ring 3, so that the inside of the combustion opening at the top of the burner cylinder 2 can be auxiliary sealed to prevent dust and foreign matter from entering, and the combustion can be prevented. When the burner is installed and used, the locking rod 18 on the support tube 1 can be screwed outward from the inside of the threaded sleeve 19 respectively. After the locking rod 18 is withdrawn from the inside of the insertion hole 17, the insertion rod 20 can be unlocked inside the support tube 1, and then the burner cylinder 2 can be moved up and down, thereby driving the insertion rod 20 to move up and down inside the support tube 1. By screwing the locking rod 18 into the inside of the insertion hole 17 in different positions, the combustion height of the burner can be adjusted. After the burner is installed at the bottom of the equipment heating tube, the fuel is delivered to the gasification oil nozzle 7 by the oil delivery pipe 9. After the low-pressure air delivered by the air inlet pipe 12 is atomized, it is sprayed into the inside of the burner cylinder 2, and then the atomized mixture is ignited by an external person for combustion and heating.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A low-pressure atomizing burner for regeneration, drying and heating of asphalt mixture, comprising a burner barrel (2), characterized in that: An air inlet pipe (12) is fixed to the rear end of the right side of the burner cylinder (2), and an external pipe (14) is arranged on the right side of the air inlet pipe (12), and a filtering structure for purifying the intake air is arranged between the air inlet pipe (12) and the external pipe (14); The filtering structure comprises a connecting pipe (13), a filter screen 1 (15), a filter screen 2 (16), a connecting flange 1 (21), a connecting flange 2 (22) and a slot (23); a connecting pipe (13) is arranged between the air inlet pipe (12) and the external pipe (14); a connecting flange 1 (21) is welded and fixed on the right side of the outside of the air inlet pipe (12) and the left side of the outside of the external pipe (14); connecting flange 2 (22) is welded and fixed on both sides of the outside of the connecting pipe (13); slots (23) are respectively provided inside the two sides of the connecting pipe (13); a filter screen 2 (16) is arranged inside the left side of the connecting pipe (13); and a filter screen 1 (15) is arranged inside the right side of the connecting pipe (13).

2. A low-pressure atomizing burner for regeneration, drying and heating of asphalt mixture according to claim 1, characterized in that: The two groups of connecting flange plates 1 (21) and connecting flange plates 2 (22) are respectively connected and installed by bolts and nuts.

3. The low-pressure atomizing burner for regeneration, drying and heating of asphalt mixture according to claim 1 is characterized in that: The external pipe (14) is connected to the interior of the air inlet pipe (12) via the connecting pipe (13).

4. The low-pressure atomizing burner for regeneration, drying and heating of asphalt mixture according to claim 1 is characterized in that: A fixing ring (3) is fixed to the top of the burner barrel (2), and a left inner groove (24) is provided inside the left side of the fixing ring (3), a left cover plate (4) is provided inside the left inner groove (24), a fixing foot (26) is fixed to the right side of the rear end of the left cover plate (4), a right inner groove (29) is provided inside the right side of the fixing ring (3), a right cover plate (27) is provided inside the right inner groove (29), a fixing foot (28) is fixed to the left side of the rear end of the right cover plate (27), a handle (25) is fixed to the left side of the left cover plate (4) and the right side of the right cover plate (27), and the fixing ring (3) is communicated with the inside of the burner barrel (2).

5. A low-pressure atomizing burner for regeneration, drying and heating of asphalt mixture according to claim 4, characterized in that: The first fixing foot (26) is hingedly connected to the right side of the rear end of the left inner groove (24), and the second fixing foot (28) is hingedly connected to the left side of the rear end of the right inner groove (29).

6. A low-pressure atomizing burner for regeneration, drying and heating of asphalt mixture according to claim 4, characterized in that: The left cover plate (4) and the right cover plate (27) are symmetrically arranged with respect to the vertical center line of the fixing ring (3).

7. The low-pressure atomizing burner for regeneration, drying and heating of asphalt mixture according to claim 1 is characterized by: Fixing ears (10) are welded and fixed on both sides of the burner cylinder (2), and support cylinders (1) are provided at the bottom ends of both sides of the burner cylinder (2), and a plug rod (20) is inserted into the top end of the support cylinder (1), and a plug hole (17) is provided inside the right side of the plug rod (20), and a plurality of plug holes (17) are provided inside the plug rod (20) at equal intervals, and a threaded sleeve (19) is fixed on the top end of the right side of the support cylinder (1), and a locking rod (18) is rotatably connected inside the threaded sleeve (19), and a mounting plate (11) is welded and fixed to the top end of the plug rod (20), and the top end of the mounting plate (11) is fixedly mounted between the bottom end of the fixing ear (10).

8. The low-pressure atomizing burner for regeneration, drying and heating of asphalt mixture according to claim 1 is characterized by: An oil delivery pipe (9) is fixedly passed through the bottom of the burner barrel (2), a base (8) is fixedly passed through the bottom of the burner barrel (2), a gasification oil nozzle (7) is fixedly passed through the top of the base (8), and a combustion stabilizing cover (6) is fixedly passed through the top of the gasification oil nozzle (7), the top of the oil delivery pipe (9) passes through the inside of the burner barrel (2) and is fixedly connected to the bottom of the gasification oil nozzle (7), and air outlet holes (5) are respectively provided at both ends of the inside of the burner barrel (2).

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