CN213334381U - Asphalt hot melting device - Google Patents
Asphalt hot melting device Download PDFInfo
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- CN213334381U CN213334381U CN202022056714.8U CN202022056714U CN213334381U CN 213334381 U CN213334381 U CN 213334381U CN 202022056714 U CN202022056714 U CN 202022056714U CN 213334381 U CN213334381 U CN 213334381U
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Abstract
The utility model relates to a pitch hot melt device to the required heating time of the pitch melting's that exists among the solution prior art method is longer, wastes time and energy, and pollutes seriously, and the heat loss is serious, and the site cleaning is very troublesome, the lower problem of heating efficiency. The device comprises a heating insulation box body, a heating mechanism, a first heat shield, a second heat shield and a control switch mechanism. The heating mechanism is arranged below the heating and heat-preserving box body, and the first heat shield is arranged between the heating and heat-preserving box body and the heating mechanism and forms a first heating cavity with the bottom surface of the heating and heat-preserving box body; the second heat insulation cover is arranged outside the heating and heat preservation box body and sleeved on the discharge pipeline, a second heating cavity is formed by the second heat insulation cover and the outer wall of the discharge pipeline, and the first heating cavity is communicated with the second heating cavity; the first heat shield is provided with a plurality of heat circulation holes communicated with the first heating cavity and used for transmitting heat generated by the heating mechanism to the heating insulation box body and the discharge pipeline.
Description
Technical Field
The utility model relates to a pitch hot melt device.
Background
Before the asphalt is used for road surface repairing, crack pouring and other works, the solid asphalt raw material needs to be heated at high temperature and melted for the next use.
At present, the method for melting asphalt is simpler and lagged behind, generally a large pot is erected on the ground, solid asphalt raw materials are put into the pot, firewood is burned for heating to melt the solid asphalt raw materials, and the method needs longer heating time, wastes time and labor and causes serious pollution; or an asphalt pool is built on a construction site and is heated by a heating pipe to be molten, but the asphalt pool has a large heat dissipation area and serious heat loss, and the site cleaning is very troublesome after the construction is finished; or an asphalt barrel is used for heating, but the heating efficiency is low because the capacity of the asphalt barrel is small.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the asphalt melting's that exists among the prior art method comparatively simply lags behind, specifically including required heat time longer, wastes time and energy, and pollutes seriously, and the heat loss is serious, and the site cleaning is very troublesome, the lower problem of heating efficiency, and provides an asphalt hot melting device.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
an asphalt hot melting device is characterized in that:
the heating and heat-preserving box comprises a heating and heat-preserving box body, a heating mechanism, a first heat-insulating cover, a second heat-insulating cover and a control switch mechanism;
a discharge pipeline is arranged at the bottom of the heating and heat-preserving box body, and a discharge valve is arranged on the discharge pipeline;
the heating mechanism is arranged below the heating and heat-preserving box body;
the first heat shield is arranged between the heating and heat-preserving box body and the heating mechanism and forms a first heating cavity together with the bottom surface of the heating and heat-preserving box body;
the second heat insulation cover is arranged outside the heating and heat preservation box body and sleeved on the discharge pipeline, and forms a second heating cavity together with the outer wall of the discharge pipeline;
the first heating cavity is communicated with the second heating cavity;
the first heat shield is provided with a plurality of heat circulation holes communicated with the first heating cavity and used for transmitting heat generated by the heating mechanism to the heating insulation box body and the discharge pipeline;
the control switch mechanism is used for controlling the working state of the heating mechanism.
Further, the heating mechanism comprises a gas nozzle assembly, an injection pipe, a U-shaped bent pipe, a combustion pipe and an igniter;
the inlet of the gas nozzle component is connected with a gas source, the outlet of the gas nozzle component is connected with the inlet of the injection pipe, the outlet of the injection pipe is connected with the inlet of the U-shaped elbow pipe, the outlet of the U-shaped elbow pipe is connected with the inlet of the combustion pipe, and the outlet of the combustion pipe is provided with a blocking plate;
the pipe wall of the combustion pipe is provided with an ignition hole unit and at least two groups of first combustion hole units;
the ignition hole unit comprises a plurality of ignition holes which are distributed along the circumferential direction of the combustion pipe;
each group of first combustion hole units comprises a plurality of first combustion holes which are axially arranged along the combustion pipe;
the igniter is arranged on the outer side of the combustion pipe, the ignition end of the igniter is located at the ignition hole, and the igniter is used for igniting the gas at the ignition hole to form flame and igniting the gas at the first combustion hole through the flame at the ignition hole.
Furthermore, the first combustion hole units are arranged in two groups, and the two groups of first combustion hole units are arranged in an axisymmetrical mode by taking the central line of the combustion pipe as an axis and are positioned on the same plane with the central line of the injection pipe;
the plugging plate is provided with a second combustion hole unit;
the second combustion hole units and the two groups of first combustion hole units are positioned on the same plane;
the second combustion hole unit includes a plurality of second combustion holes.
Further, the diameter of each ignition hole is 2-4mm, and the distance between every two adjacent ignition holes is 4-8 mm;
the diameter of each first combustion hole is 2-4mm, and the distance between every two adjacent first combustion holes is 4-8 mm;
the diameter of the second combustion hole is 2-4mm, and the distance between two adjacent second combustion holes is 4-8 mm.
Furthermore, the distance between the central line of the injection pipe and the central line of the combustion pipe is d, and d is more than or equal to 200mm and less than or equal to 300 mm.
Furthermore, the igniter is positioned on one side of the combustion pipe close to the injection pipe.
Furthermore, the injection pipe comprises a diffusion section, a gas-air mixing section, an air suction contraction section and a connecting section;
the diffusion section is of a conical pipe structure, the gas-air mixing section is of a straight pipe structure, the air suction contraction section is of a horn pipe structure, and the connecting section is of a straight pipe structure;
the big end of diffusion section and the entry linkage of U type return bend, the tip and the gas air mixing section one end of diffusion section are connected, and the gas air mixing section other end is connected with the tip of the shrink section of breathing in, and the big end and the linkage segment one end of the shrink section of breathing in are connected, and the linkage segment other end is connected with gas nozzle assembly.
Further, the length ratio of the diffusion section, the gas-air mixing section and the air suction contraction section is 4:2: 1.
further, the gas nozzle assembly includes a gas nozzle and a damper;
the gas nozzle is fixedly connected with the connecting section of the injection pipe through a mounting seat, and an outlet of the gas nozzle is positioned at the large end of the air suction contraction section;
the air door is fixedly sleeved outside the gas nozzle, and a gap is reserved between the air door and the port of the connecting section.
Further, the device also comprises a stirring mechanism;
the stirring mechanism comprises a stirring shaft and a plurality of stirring blades arranged on the stirring shaft;
the stirring shaft is rotatably connected with two opposite side plates of the heating and heat-preserving box body, and one end of the stirring shaft extends out of the heating and heat-preserving box body;
the stirring blades are positioned in the heating and insulating box body.
The utility model discloses compare prior art's beneficial effect is:
(1) the utility model provides an asphalt hot melting device, which adopts a heating mechanism to heat a heating insulation box body and controls the working state of the heating mechanism through a control switch mechanism, and has the advantages of short heating time, high heating efficiency, low heat loss, convenient use and simple field cleaning; the first heat insulation cover is arranged between the heating and heat preservation box body and the heating mechanism, so that the flame generated by the heating mechanism can be prevented from directly contacting the heating and heat preservation box body, and the box bottom can be prevented from being burnt out; the heat of the flame enters the first heating cavity and the second heating cavity through the heat circulation holes in the first heat shield, so that the heating insulation box body is heated, the exhaust pipeline is heated at the same time, and the problem of unsmooth exhaust caused by too low temperature of the exhaust pipeline is prevented;
(2) in the utility model, the heating mechanism sprays the gas to the injection pipe through the gas nozzle component, and after the gas is mixed with the air in the injection pipe, the gas enters the combustion pipe through the U-shaped bent pipe and is finally sprayed out from the ignition hole and the first combustion hole of the combustion pipe to perform stable and sufficient combustion, and the device uses the gas for combustion, so that the pollution is small, and the combustion efficiency is higher;
(3) in the utility model, when two groups of first combustion hole units are provided, the temperature requirement required by heating can be met, the gas consumption is low, and the operation cost can be effectively reduced;
(4) in the utility model, the second combustion hole unit is arranged on the plugging plate, which can increase the heating range; the second combustion hole units and the two groups of first combustion hole units are positioned on the same plane, so that the flame of the first combustion hole units can be conducted to the second combustion hole units;
(5) the diameter ranges of the ignition holes, the first combustion holes and the second combustion holes and the distance ranges between adjacent holes provided by the utility model can ensure that the flame at one hole can ignite the fuel gas at the adjacent hole, and ensure that the flame is conducted along the hole;
(6) the distance range between the central line of the ejector pipe and the central line of the combustion pipe can ensure that flame at the combustion pipe can not cause the ejection pipe to combust and explode, and saves space;
(7) the utility model discloses in, set up rabbling mechanism in heating insulation can, stir through rabbling mechanism in the heating process, can make pitch be heated more evenly, further shorten heat time.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of an asphalt melting device according to the present invention;
fig. 2 is a schematic structural diagram of a heating mechanism in an embodiment of the present invention;
FIG. 3 is a cross-sectional view of an injector tube and a gas nozzle assembly in an embodiment of the present invention;
in the figure, 1-heating insulation box, 11-discharge pipeline, 12-discharge valve; 2-heating mechanism, 21-gas nozzle component, 211-gas nozzle, 212-air door, 213-mounting seat; 22-an injection pipe, 221-a diffusion section, 222-a gas-air mixing section, 223-a gas suction contraction section and 224-a connecting section; 23-U-shaped bent pipe; 24-combustion pipe, 241-ignition hole, 242-first combustion hole; 25-an igniter; 26-closure plate, 261-second combustion hole; 3-first heat shield, 31-heat flux hole; 4-a second heat shield; 5-controlling the switch mechanism; 6-stirring mechanism, 61-stirring shaft, 62-stirring blade; 7-gas tank.
Detailed Description
To make the objects, advantages and features of the present invention clearer, the following detailed description of an asphalt melting device according to the present invention is provided with reference to the accompanying drawings and specific embodiments.
As shown in figure 1, the utility model provides an asphalt hot melting device includes heating insulation box 1, heating mechanism 2, first heat shield 3, second heat shield 4, control switch mechanism 5, rabbling mechanism 6.
The heating and heat-insulating box body 1 is used for containing asphalt, a discharge pipeline 11 is arranged at the bottom of the heating and heat-insulating box body, a discharge valve 12 is arranged on the discharge pipeline 11, and the heated asphalt can be discharged by opening the discharge valve 12. The stirring mechanism 6 comprises a stirring shaft 61 and a plurality of stirring blades 62 arranged on the stirring shaft 61, the stirring shaft 61 is rotatably connected with two opposite side plates of the heating and heat-preserving box body 1, one end of the stirring shaft 61 extends out of the heating and heat-preserving box body 1, and the plurality of stirring blades 62 are positioned in the heating and heat-preserving box body 1. One end of the stirring shaft 61 extending out of the heating and heat-insulating box body 1 is rotated, so that the stirring blades 62 can be stirred in the heating and heat-insulating box body 1, and uniform heating of asphalt is facilitated.
The control switch mechanism 5 comprises a gas control valve for controlling the working state of the heating mechanism 2, and can realize the functions of one-key ignition, flameout protection, fault alarm and the like by utilizing an electric control mode.
As shown in fig. 2 and 3, the heating mechanism 2 includes a gas nozzle assembly 21, an injection pipe 22, a U-bend 23, a combustion pipe 24, and an igniter 25.
The inlet of the gas nozzle component 21 is connected with the gas tank 7 through the control switch mechanism 5, the outlet of the gas nozzle component is connected with the inlet of the injection pipe 22, the outlet of the injection pipe 22 is connected with the inlet of the U-shaped bent pipe 23, the outlet of the U-shaped bent pipe 23 is connected with the inlet of the combustion pipe 24, and the outlet of the combustion pipe 24 is provided with a blocking plate 26. The distance between the central line of the injection pipe 22 and the central line of the combustion pipe 24 is not less than 200mm and not more than 300 mm.
The injection pipe 22 comprises a diffusion section 221, a gas-air mixing section 222, a suction contraction section 223 and a connecting section 224. The diffuser section 221 is a tapered tube structure, the gas-air mixing section 222 is a straight tube structure, the air suction contraction section 223 is a flared tube structure, and the connection section 224 is a straight tube structure. The length ratio of the diffusion section 221, the gas-air mixing section 222 and the air suction contraction section 223 is 4:2: 1. The big end of diffusion section 221 is connected with the entry of U type return bend 23, and the tip of diffusion section 221 is connected with gas air mixing section 222 one end, and the gas air mixing section 222 other end is connected with the tip of the shrink section 223 of breathing in, and the big end of the shrink section 223 of breathing in is connected with linkage segment 224 one end, and the linkage segment 224 other end is connected with gas nozzle assembly 21.
The gas nozzle assembly 21 includes a gas nozzle 211 and a damper 212. The gas nozzle 211 is fixedly connected with the connecting section 224 of the injection pipe 22 through the mounting seat 213, particularly, the mounting seat 213 comprises a sleeve and two U-shaped connecting pieces, one end of each U-shaped connecting piece is welded on the outer side of the connecting section 224 of the injection pipe 22, the other end of each U-shaped connecting piece is welded on the sleeve, the gas nozzle 211 penetrates through the sleeve and is fixed through a nut, and the outlet of the gas nozzle 211 is located at the large end of the air suction contraction section 223. The air door 212 is fixedly sleeved outside the gas nozzle 211 through a nut, a gap is reserved between the air door 212 and the port of the connecting section 224, and the air inlet amount can be adjusted by adjusting the size of the gap, so that the gas and the air can be fully mixed.
The pipe wall of the combustion pipe 24 is provided with an ignition hole unit and at least two groups of first combustion hole units. The ignition hole unit includes a plurality of ignition holes 241 arranged along the circumferential direction of the combustion pipe 24; each group of the first combustion hole units includes a plurality of first combustion holes 242 arranged in the axial direction of the combustion pipe 24. In this embodiment, the first combustion hole units are provided in two groups, and the two groups of first combustion hole units are arranged in axial symmetry with the central line of the combustion pipe 24 as an axis.
The blocking plate 26 is provided with a second combustion hole unit, the second combustion hole unit is located on the same plane as the two sets of first combustion hole units, and the second combustion hole unit includes a plurality of second combustion holes 261.
The diameter of each ignition hole 241 is 2-4mm, and the distance between every two adjacent ignition holes 241 is 4-8 mm; the diameter of the first combustion hole 242 is 2-4mm, and the distance between two adjacent first combustion holes 242 is 4-8 mm; the diameter of the second combustion holes 261 is 2-4mm, and the distance between two adjacent second combustion holes 261 is 4-8 mm.
The igniter 25 is disposed outside the burner tube 24 with its firing end at the location of the firing hole 241 for igniting the gas at the firing hole 241. In this embodiment, the igniter 25 is located at a side of the combustion pipe 24 close to the injection pipe 22, so that the space occupied by the heating mechanism 2 can be reduced. The igniter 25 includes an ignition needle and an ignition sensing needle, and when the gas is suddenly extinguished, the ignition sensing needle can send a signal to the control switch mechanism 5, so that the gas input is cut off, and the safety of the device is improved.
When the fuel gas injection device is used, fuel gas is injected into the injection pipe 22 through the fuel gas nozzle 211, and the fuel gas is fully mixed with air in the fuel gas and air mixing section 222 of the injection pipe 22, enters the combustion pipe 24 through the U-shaped bent pipe 23, and is injected from the ignition hole 241 and the first combustion hole 242 of the combustion pipe 24 and the second combustion hole 261 of the blocking plate 26. The igniter 25 is used to ignite the gas in the ignition hole 241 to form a flame, the flame is conducted along the ignition hole 241 and ignites the gas in the first combustion hole 242, and the flame in the first combustion hole 242 ignites the gas in the second combustion hole 261, so that the heating operation can be performed.
Claims (10)
1. An asphalt hot melting device is characterized in that:
comprises a heating and heat-preserving box body (1), a heating mechanism (2), a first heat-insulating cover (3), a second heat-insulating cover (4) and a control switch mechanism (5);
a discharge pipeline (11) is arranged at the bottom of the heating and heat-insulating box body (1), and a discharge valve (12) is arranged on the discharge pipeline (11);
the heating mechanism (2) is arranged below the heating and heat-preserving box body (1);
the first heat shield (3) is arranged between the heating and heat-preserving box body (1) and the heating mechanism (2) and forms a first heating cavity with the bottom surface of the heating and heat-preserving box body (1);
the second heat shield (4) is arranged on the outer side of the heating and heat-preserving box body (1), is sleeved on the discharge pipeline (11), and forms a second heating cavity together with the outer wall of the discharge pipeline (11);
the first heating cavity is communicated with the second heating cavity;
the first heat shield (3) is provided with a plurality of heat circulation holes (31) communicated with the first heating cavity and used for transmitting heat generated by the heating mechanism (2) to the heating insulation box body (1) and the discharge pipeline (11);
the control switch mechanism (5) is used for controlling the working state of the heating mechanism (2).
2. An asphalt melting device according to claim 1, wherein:
the heating mechanism (2) comprises a gas nozzle assembly (21), an injection pipe (22), a U-shaped bent pipe (23), a combustion pipe (24) and an igniter (25);
the inlet of the gas nozzle component (21) is connected with a gas source, the outlet of the gas nozzle component is connected with the inlet of the ejector pipe (22), the outlet of the ejector pipe (22) is connected with the inlet of the U-shaped elbow (23), the outlet of the U-shaped elbow (23) is connected with the inlet of the combustion pipe (24), and the outlet of the combustion pipe (24) is provided with a blocking plate (26);
the pipe wall of the combustion pipe (24) is provided with an ignition hole unit and at least two groups of first combustion hole units;
the ignition hole unit comprises a plurality of ignition holes (241) which are distributed along the circumferential direction of the combustion pipe (24);
each group of the first combustion hole units comprises a plurality of first combustion holes (242) which are arranged along the axial direction of the combustion pipe (24);
the igniter (25) is arranged outside the combustion pipe (24), the ignition end of the igniter is located at the position of the ignition hole (241) and used for igniting the gas at the ignition hole (241) to form flame, and the gas at the first combustion hole (242) is ignited by the flame at the ignition hole (241).
3. An asphalt melting device according to claim 2, wherein:
the two groups of first combustion hole units are arranged in an axisymmetric manner by taking the central line of the combustion pipe (24) as an axis and are positioned on the same plane with the central line of the injection pipe (22);
the plugging plate (26) is provided with a second combustion hole unit;
the second combustion hole units and the two groups of first combustion hole units are positioned on the same plane;
the second combustion hole unit includes a plurality of second combustion holes (261).
4. An asphalt melting device according to claim 3, wherein:
the diameter of each ignition hole (241) is 2-4mm, and the distance between every two adjacent ignition holes (241) is 4-8 mm;
the diameter of each first combustion hole (242) is 2-4mm, and the distance between every two adjacent first combustion holes (242) is 4-8 mm;
the diameter of the second combustion hole (261) is 2-4mm, and the distance between two adjacent second combustion holes (261) is 4-8 mm.
5. An asphalt melting device according to claim 4, wherein:
the distance between the central line of the injection pipe (22) and the central line of the combustion pipe (24) is d, and d is more than or equal to 200mm and less than or equal to 300 mm.
6. An asphalt melting device according to claim 5, wherein:
the igniter (25) is positioned on one side of the combustion pipe (24) close to the injection pipe (22).
7. An asphalt melting device according to any one of claims 2 to 6, wherein:
the injection pipe (22) comprises a diffusion section (221), a gas-air mixing section (222), a suction contraction section (223) and a connecting section (224);
the diffusion section (221) is of a conical pipe structure, the gas-air mixing section (222) is of a straight pipe structure, the air suction contraction section (223) is of a horn pipe structure, and the connection section (224) is of a straight pipe structure;
the large end of the diffusion section (221) is connected with an inlet of the U-shaped elbow (23), the small end of the diffusion section (221) is connected with one end of the gas-air mixing section (222), the other end of the gas-air mixing section (222) is connected with the small end of the air suction contraction section (223), the large end of the air suction contraction section (223) is connected with one end of the connecting section (224), and the other end of the connecting section (224) is connected with the gas nozzle assembly (21).
8. An asphalt melting device according to claim 7, wherein:
the length ratio of the diffusion section (221), the gas-air mixing section (222) and the air suction contraction section (223) is 4:2: 1.
9. an asphalt melting device according to claim 7, wherein:
the gas nozzle assembly (21) comprises a gas nozzle (211) and a damper (212);
the gas nozzle (211) is fixedly connected with the connecting section (224) of the injection pipe (22) through a mounting seat (213), and the outlet of the gas nozzle (211) is positioned at the large end of the air suction contraction section (223);
the air door (212) is fixedly sleeved on the outer side of the gas nozzle (211) and a gap is reserved between the air door and the port of the connecting section (224).
10. An asphalt melting device according to any one of claims 1 to 6, wherein:
also comprises a stirring mechanism (6);
the stirring mechanism (6) comprises a stirring shaft (61) and a plurality of stirring blades (62) arranged on the stirring shaft (61);
the stirring shaft (61) is rotatably connected with two opposite side plates of the heating and heat-insulating box body (1), and one end of the stirring shaft (61) extends out of the heating and heat-insulating box body (1);
the stirring blades (62) are positioned in the heating and heat-preserving box body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022056714.8U CN213334381U (en) | 2020-09-18 | 2020-09-18 | Asphalt hot melting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022056714.8U CN213334381U (en) | 2020-09-18 | 2020-09-18 | Asphalt hot melting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213334381U true CN213334381U (en) | 2021-06-01 |
Family
ID=76065652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022056714.8U Active CN213334381U (en) | 2020-09-18 | 2020-09-18 | Asphalt hot melting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213334381U (en) |
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2020
- 2020-09-18 CN CN202022056714.8U patent/CN213334381U/en active Active
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