CN112942021A - Take instant heating type asphalt box of heat preservation function - Google Patents
Take instant heating type asphalt box of heat preservation function Download PDFInfo
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- CN112942021A CN112942021A CN202110290556.9A CN202110290556A CN112942021A CN 112942021 A CN112942021 A CN 112942021A CN 202110290556 A CN202110290556 A CN 202110290556A CN 112942021 A CN112942021 A CN 112942021A
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- asphalt
- heat
- oil
- box body
- asphalt box
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/08—Apparatus for transporting and heating or melting asphalt, bitumen, tar, or the like
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses an instant heating type asphalt box with a heat preservation function, which mainly comprises an asphalt box body and an electric control system, wherein the asphalt box body is used for heating and preserving heat of asphalt, the electric control system is used for controlling the heating temperature, the asphalt box body is divided into an asphalt box inner cavity and a hearth through a box body bottom plate, a burner is arranged at the position of the asphalt box body corresponding to the hearth, flame is sprayed into the hearth through the burner so as to heat the asphalt in the asphalt box inner cavity, and a chimney extending out of the asphalt box body is arranged in the hearth; the top of the asphalt box body is provided with an asphalt box oil filling port and an oil suction pipeline which is downward extended to the bottom of the inner cavity of the asphalt box, the outlet end of the oil suction pipeline is connected with a pneumatic three-way valve through an asphalt pump and a driving module, and the two outlet ends of the pneumatic three-way valve are respectively connected with an asphalt oil outlet pipeline and an asphalt oil return pipeline; the asphalt box body is provided with a heat conduction oil heating mechanism for improving the asphalt heating efficiency; and a heat-insulating layer is arranged on the outer wall of the asphalt box body.
Description
Technical Field
The invention relates to the field of road construction and maintenance machinery, in particular to an instant heating type asphalt box with a heat preservation function.
Background
In the road building and maintenance construction process, asphalt is a common road building material, and in the asphalt mixing road production and the maintenance of damaged asphalt pavements, liquid asphalt is usually sprayed into the road building material to be uniformly stirred for construction and use. Asphalt is a waterproof, moistureproof and anticorrosive organic cementing material, and is used in the industries of paint, plastics, rubber and the like, pavement and the like. Asphalt is a black or blackish brown viscous liquid, semi-solid or solid at ordinary temperatures, and is usually heated for construction, especially in the winter when the temperature is low. The existing asphalt heating device generally adopts heat conduction oil circulation or an electric heating wire to heat asphalt through heat radiation and heat exchange, and for customers with less usage, sometimes an oil bath heating mode is adopted for improving heating efficiency and shortening heating time, a container filled with low-temperature asphalt is completely immersed in the high-temperature heat conduction oil, and the asphalt is heated to be stable in a heat exchange mode. The disadvantages of the above heating method are: asphalt is heated unevenly, asphalt close to a heating device is aged due to overhigh temperature, asphalt far away from the heating device cannot be heated, and meanwhile, the temperature of the asphalt is slowly increased, although the oil bath heating speed is high, the asphalt is still not suitable for large-batch use of the asphalt.
Disclosure of Invention
The invention aims to solve the technical problem of providing an instant asphalt box with a heat preservation function, which can quickly and uniformly heat solid asphalt to a liquid state and can intelligently control the temperature, aiming at the defects in the prior art.
The invention aims to solve the technical scheme that the instant heating type asphalt box with the heat preservation function mainly comprises an asphalt box body and an electric control system, wherein the asphalt box body is used for heating and preserving heat of asphalt, the electric control system is used for controlling the heating temperature, the asphalt box body is divided into an asphalt box inner cavity and a hearth which are arranged up and down through a box body bottom plate, a burner is arranged at the position of the asphalt box body corresponding to the hearth, flame is sprayed into the hearth through the burner to heat the asphalt in the asphalt box inner cavity, and a chimney extending out of the asphalt box body is arranged in the hearth; the top of the asphalt box body is provided with an asphalt box oil filling port and an oil suction pipeline which is downward extended to the bottom of the inner cavity of the asphalt box, the outlet end of the oil suction pipeline is connected with a pneumatic three-way valve through an asphalt pump and a driving module, and the two outlet ends of the pneumatic three-way valve are respectively connected with an asphalt oil outlet pipeline and an asphalt oil return pipeline; the asphalt box body is provided with a heat conduction oil heating mechanism for improving the asphalt heating efficiency, a first thermocouple thermometer for detecting the temperature of heat conduction oil is arranged in the heat conduction oil heating mechanism, a second thermocouple thermometer is arranged on the inner wall of the middle lower part of the inner cavity of the asphalt box, and the electric control system is in data connection with the first thermocouple thermometer and the second thermocouple thermometer and automatically controls the on-off of the burner according to the temperature comparison of the two thermocouple thermometers; and a heat-insulating layer is arranged on the outer wall of the asphalt box body.
Furthermore, the heat-conducting oil heating mechanism mainly comprises a heat-conducting oil inner cavity, and a heat-conducting oil suction coil and a heat-conducting oil return coil which are respectively communicated with the heat-conducting oil inner cavity, the outer ends of the heat-conducting oil suction coil and the heat-conducting oil return coil are respectively communicated with a heat-conducting oil pump and a driving module through heat-conducting oil pipelines so as to carry out heat-conducting oil circulation, and the first thermocouple temperature instrument is arranged on the heat-conducting oil pump and the driving module and is used for detecting the oil return temperature; the top of the asphalt box body is provided with a heat conduction oil expansion box communicated with the heat conduction oil inner cavity.
Furthermore, the heat-conducting oil suction coil pipe and the heat-conducting oil return coil pipe are both hard pipe pipelines made of seamless pipes by bending, and the heat-conducting oil inner cavity is a hollow cavity arranged between the smoke exhaust pipe inner pipe of the chimney and the smoke exhaust pipe outer wall interlayer.
Further, be provided with on the pitch oil outlet pipe and be used for carrying out gas circuit or diesel oil washing's cleaning module to pitch pipeline inner wall or pitch pump inner chamber, the lower part of pitch case body is provided with the pitch case bleeder valve with pitch case inner chamber intercommunication.
Furthermore, a layer of refractory cement lining is coated on the inner wall and the bottom of the hearth, and a fan-shaped air blocking opening is formed in the top of the chimney.
Further, an asphalt filter cylinder is arranged on the oil filling port of the asphalt tank.
Furthermore, the heat-insulating layer is made of aluminum silicate fiber cotton.
Further, the burner is one of a fuel burner, a gas burner, a light oil burner or a dual fuel burner.
Furthermore, the pneumatic three-way valve is an L-shaped or T-shaped three-way valve, or one of a manual three-way conversion ball valve, a hydraulic three-way ball valve and an electric three-way ball valve.
The invention has the beneficial technical effects that: the invention heats solid or semi-solid asphalt through heat radiation, and can rapidly and uniformly heat the solid asphalt to liquid state by matching with an asphalt pump circulating system, the periphery of the asphalt box shell is coated with a silicate cotton layer for heat insulation, meanwhile, the system is provided with an intelligent temperature control system, the required asphalt temperature can be set, a burner can automatically stop heating after the temperature reaches, the intelligent temperature control can prevent the asphalt from overheating or scorching, the operation is simple and intelligent, and the production efficiency of the hot asphalt can be greatly improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic plan view of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention is further described with reference to the accompanying drawings and examples.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "inside", "outside", "lateral", "vertical", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-2, the instant asphalt box with heat preservation function of the present invention mainly includes an asphalt box body for heating and preserving heat of asphalt and an electric control system 28 for controlling heating temperature, the asphalt box body is divided into an asphalt box inner cavity 15 and a hearth 20 which are arranged up and down through a box body bottom plate 21, a burner 1 is arranged at a position of the asphalt box body corresponding to the hearth 20, and flame 22 is sprayed into the hearth 20 through the burner 1 to heat the asphalt in the asphalt box inner cavity 15, a chimney 14 extending out of the asphalt box body is arranged in the hearth 20, and a fan-shaped air blocking opening is arranged at the top of the chimney 14; the top of the asphalt tank body is provided with an asphalt tank oil filling port 12 and an oil suction pipeline 6 which is downward extended to the bottom of an inner cavity 15 of the asphalt tank, the outlet end of the oil suction pipeline 6 is connected with a pneumatic three-way valve 10 through an asphalt pump and driving module 9, the asphalt pump and driving module 9 comprises an asphalt pump and a driving unit thereof, the asphalt pump can suck hydraulic asphalt and pump the hydraulic asphalt out under the driving of the driving unit, and two outlet ends of the pneumatic three-way valve 10 are respectively connected with an asphalt oil outlet pipeline 7 and an asphalt oil return pipeline 11; the oil suction pipeline 6 sucks the 15 bottoms of the inner cavity of the asphalt box to suck oil under the oil suction port of the asphalt pump, the asphalt oil outlet pipeline 7 is externally wrapped with heat conducting oil, high-temperature liquid asphalt is supplied to users for use through the pumping pipeline, and the asphalt oil return pipeline 11 can pump the liquid high-temperature asphalt pumped out of the asphalt pump back to the inner cavity of the asphalt box 15 under the action of the pneumatic three-way valve 10, so that the asphalt circulation is accelerated.
The asphalt box body is provided with a heat conduction oil heating mechanism for improving the asphalt heating efficiency, a first thermocouple thermometer 26 for detecting the temperature of heat conduction oil is arranged in the heat conduction oil heating mechanism, a second thermocouple thermometer 3 is arranged on the inner wall of the middle lower part of the inner cavity 15 of the asphalt box, and the electric control system 28 is in data connection with the first thermocouple thermometer 26 and the second thermocouple thermometer 3 and automatically controls the on-off of the combustor 1 according to the temperature comparison of the two thermocouple thermometers; the outer wall of the asphalt box body is provided with a layer of heat preservation layer 5, the heat preservation layer 5 is made of aluminum silicate fiber cotton, and the aluminum silicate fiber is a novel, light and energy-saving refractory material. It is made up by using flint clay as main raw material, melting at 2100 deg.C, and adopting the processes of high-speed centrifugal method or blowing method. The aluminum silicate fiber has the advantages of high temperature resistance, good thermal stability, low thermal conductivity, small heat capacity, good mechanical vibration resistance, small thermal expansion, good heat insulation performance and the like, can be made into products such as an aluminum silicate fiber board, an aluminum silicate fiber felt, an aluminum silicate fiber rope, an aluminum silicate fiber blanket and the like through weaving or knitting, is a novel material for replacing asbestos, and is widely used for heat preservation of heat energy equipment of metallurgy, electric power, machinery and chemical engineering. The periphery of the asphalt box is coated with aluminum silicate fiber cotton, so that the asphalt box plays a role in heat insulation.
The electric control system 28 can receive the temperature signals transmitted by the first thermocouple thermometer 26 and the second thermocouple thermometer 3 in real time, and the temperature signals are compared with the set temperature of the computer, so that the opening and closing of the burner are automatically controlled, the phenomena of asphalt scorching, aging and the like caused by overhigh asphalt temperature are prevented, manual interference is not needed, the labor intensity and the difficulty are reduced, and the operation is simple and intelligent. Meanwhile, a burner starting/stopping knob, an asphalt pump circulating/pumping three-position switch switching knob and the like are arranged on the electric control panel, a heat-conducting oil pump starting/stopping knob is arranged on the control panel, asphalt temperature and heat-conducting oil temperature display is arranged on the control panel, and a manufacturer can set the required asphalt temperature and the maximum temperature of the heat-conducting oil according to requirements.
An asphalt filter cylinder 23 is arranged on the oil filling port 12 of the asphalt tank, the oil filling port 12 is opened, the asphalt filter cylinder 23 is taken out or taken out, liquid matrix asphalt, rubber asphalt or blocky asphalt can be filled into the inner cavity 15 of the asphalt tank, and the asphalt filter cylinder 23 plays a role in filtering impurities when the liquid asphalt is filled. The burner 1 is one of a fuel oil burner, a gas burner, a light oil burner or a dual fuel burner. The pneumatic three-way valve 10 is an L-shaped or T-shaped three-way valve, or one of a manual three-way conversion ball valve, a hydraulic three-way ball valve and an electric three-way ball valve.
1 during operation of combustor, flame can the direct heating box bottom plate 21, to through heat radiation and heat transfer, heats solid-state or low temperature pitch in pitch incasement chamber 15, and adjacent bottom plate pitch can rapid heating up reach the liquid state, satisfies the pitch pump and adsorbs, and then starts the pitch pump and opens the circulation and evenly heat upper and lower layer pitch. The inner wall and the bottom of the hearth 20 are coated with a layer of refractory cement lining 19, the refractoriness of the refractory cement is not lower than 1580 ℃, and the refractory cement can be divided into aluminate refractory cement, low-calcium aluminate refractory cement, calcium magnesium aluminate cement, dolomite refractory cement and the like according to different compositions. The refractory lining of the high-temperature furnace is made of refractory cement, and the hearth heated by the burner plays a role in heat insulation and heat resistance.
Referring to fig. 1-2, the heat-conducting oil heating mechanism mainly comprises a heat-conducting oil inner cavity 17, and a heat-conducting oil suction coil 2 and a heat-conducting oil return coil 4 which are respectively communicated with the heat-conducting oil inner cavity 17, the outer ends of the heat-conducting oil suction coil 2 and the heat-conducting oil return coil 4 are respectively communicated with a heat-conducting oil pump and a driving module 27 through a heat-conducting oil pipeline 25 to perform heat-conducting oil circulation, and the first thermocouple temperature instrument 26 is arranged on the heat-conducting oil pump and the driving module 27 and is used for detecting oil return temperature; and a heat conduction oil expansion tank 13 communicated with a heat conduction oil inner cavity 17 is arranged at the top of the asphalt tank body. In liquid heating or cooling systems, measures must be taken to compensate for thermal expansion of the fluid due to temperature rise, and some measure of damping must be provided to reduce pressure surges in the system in addition to purging the air from the refrigerant. These can be achieved with an expansion tank, the thermal oil expansion tank 13 serving to store the thermal oil and to counteract the expansion of the thermal oil due to temperature rise.
The heat conduction oil pump and driving module 27 includes a heat conduction oil pump and a power unit, the heat conduction oil pump is started to pump out high/low temperature heat conduction oil through the heat conduction oil suction coil pipe, the heat conduction oil is circulated externally, and the circulated heat conduction oil reenters the heat conduction oil inner cavity 17 through the heat conduction oil return coil pipe to be heated and heated. The heat-conducting oil suction coil 2 and the heat-conducting oil return coil 4 are both hard pipe pipelines made by bending seamless pipes, and the purpose is to increase the length of a pipeline, increase the contact area between the outer wall of the oil-conducting hard pipe and asphalt, and improve the heating and heat radiation efficiency. Through the corresponding pipeline, the heat conduction oil pump can suck out or circularly feed heat conduction oil in the heat conduction oil cavity, and meanwhile, the flow of high-temperature heat conduction oil in the pipe is accelerated, and the heat exchange efficiency is accelerated; the heat conducting oil cavity 17 is a hollow cavity arranged between the interlayer of the inner tube 16 of the smoke exhaust pipe and the outer envelope wall 18 of the smoke exhaust pipe of the chimney.
Referring to fig. 1-2, a cleaning module 8 for performing gas circuit or diesel oil washing on the inner wall of an asphalt pipeline or the inner cavity of an asphalt pump is arranged on the asphalt outlet pipeline 7, and an asphalt tank oil drain valve 24 communicated with the inner cavity 15 of the asphalt tank is arranged at the lower part of the asphalt tank body.
When in use, the low-temperature asphalt is arranged in the inner cavity of the asphalt box, a producer sets the required asphalt temperature through an electric control system, sets the highest temperature of heat-conducting oil, starts a burner to heat the asphalt in the box, starts a heat-conducting oil pump while starting the burner, directly heats the bottom plate of the box body by flame of the burner, so that the temperature of the asphalt at the bottom layer of the asphalt box rises very fast to reach the spraying temperature quickly, the temperature of the asphalt at the upper layer is lower, the temperature of the asphalt rises to about 100 ℃ after the burner is heated for a period of time, starts the asphalt pump to be in a circulating state, pumps the asphalt at the bottom layer to be sprayed to the upper layer of the asphalt box, accelerates the heat transfer and radiation, quickly heats the asphalt, and automatically stops heating when the temperature of the asphalt or the temperature of the heat-conducting oil reaches the set temperature, automatically starts the burner below the set temperature, and an operator can automatically, at any time, the control switch of the asphalt pump is switched to a pumping mode, the spraying work of high-temperature asphalt can be carried out, and the inner wall of an asphalt pipeline or the inner cavity of the asphalt pump can be cleaned and blasted through diesel oil and the air path cleaning module after the spraying is finished. During construction operation, if special requirements exist, high-temperature asphalt in the box body can be discharged by a constructor through an asphalt box oil drain valve, special operation is carried out, and after construction is finished, the asphalt box can be emptied through the asphalt box oil drain valve.
According to the invention, solid or semi-solid asphalt is heated through heat radiation, the solid asphalt can be rapidly and uniformly heated to be in a liquid state by matching with an asphalt pump circulating system, the periphery of the asphalt box shell is coated with a silicate cotton layer for heat insulation, meanwhile, the system is provided with an intelligent temperature control system, the required asphalt temperature can be set, a burner can automatically stop heating after the temperature reaches, the temperature is intelligently controlled, and the asphalt is prevented from being overheated or burnt.
The specific embodiments described herein are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. The utility model provides a take instant heating type asphalt box of heat preservation function which characterized in that: the asphalt box mainly comprises an asphalt box body and an electric control system, wherein the asphalt box body is used for heating and preserving heat of asphalt, the electric control system is used for controlling the heating temperature, the asphalt box body is divided into an asphalt box inner cavity and a hearth which are arranged up and down through a box body bottom plate, a burner is arranged on the position of the asphalt box body corresponding to the hearth, flame is sprayed into the hearth through the burner so as to heat the asphalt in the asphalt box inner cavity, and a chimney extending out of the asphalt box body is arranged in the hearth; the top of the asphalt box body is provided with an asphalt box oil filling port and an oil suction pipeline which is downward extended to the bottom of the inner cavity of the asphalt box, the outlet end of the oil suction pipeline is connected with a pneumatic three-way valve through an asphalt pump and a driving module, and the two outlet ends of the pneumatic three-way valve are respectively connected with an asphalt oil outlet pipeline and an asphalt oil return pipeline; the asphalt box body is provided with a heat conduction oil heating mechanism for improving the asphalt heating efficiency, a first thermocouple thermometer for detecting the temperature of heat conduction oil is arranged in the heat conduction oil heating mechanism, a second thermocouple thermometer is arranged on the inner wall of the middle lower part of the inner cavity of the asphalt box, and the electric control system is in data connection with the first thermocouple thermometer and the second thermocouple thermometer and automatically controls the on-off of the burner according to the temperature comparison of the two thermocouple thermometers; and a heat-insulating layer is arranged on the outer wall of the asphalt box body.
2. The instant asphalt tank with heat preservation function as claimed in claim 1, wherein: the heat-conducting oil heating mechanism mainly comprises a heat-conducting oil inner cavity, and a heat-conducting oil suction coil pipe and a heat-conducting oil return coil pipe which are respectively communicated with the heat-conducting oil inner cavity, wherein the outer ends of the heat-conducting oil suction coil pipe and the heat-conducting oil return coil pipe are respectively communicated with a heat-conducting oil pump and a driving module through heat-conducting oil pipelines so as to carry out heat-conducting oil circulation, and the first thermocouple temperature instrument is arranged on the heat-conducting oil pump and the driving module and is used for detecting oil return temperature; the top of the asphalt box body is provided with a heat conduction oil expansion box communicated with the heat conduction oil inner cavity.
3. The instant asphalt tank with heat preservation function as claimed in claim 2, wherein: the heat-conducting oil suction coil pipe and the heat-conducting oil return coil pipe are both hard pipe pipelines made of seamless pipes by bending, and the heat-conducting oil inner cavity is a hollow cavity arranged between an inner pipe of a smoke exhaust pipe and an outer wall interlayer of the smoke exhaust pipe of the chimney.
4. The instant asphalt tank with heat preservation function according to claim 2 or 3, wherein: be provided with on the pitch oil outlet pipe and be used for carrying out gas circuit or diesel oil washing's cleaning module to pitch pipeline inner wall or pitch pump inner chamber, the lower part of pitch case body is provided with the pitch case bleeder valve with pitch case inner chamber intercommunication.
5. The instant asphalt tank with heat preservation function as claimed in claim 4, wherein: the inner wall and the bottom of the hearth are coated with a layer of refractory cement lining, and the top of the chimney is provided with a fan-shaped air blocking opening.
6. The instant asphalt tank with heat preservation function as claimed in claim 4, wherein: and an asphalt filter cylinder is arranged on the oil filling port of the asphalt tank.
7. The instant asphalt tank with heat preservation function as claimed in claim 4, wherein: the heat-insulating layer is made of aluminum silicate fiber cotton.
8. The instant asphalt tank with heat preservation function as claimed in claim 4, wherein: the combustor is one of a fuel combustor, a gas combustor, a light oil combustor or a dual-fuel combustor.
9. The instant asphalt tank with heat preservation function as claimed in claim 4, wherein: the pneumatic three-way valve is an L-shaped or T-shaped three-way valve, or one of a manual three-way conversion ball valve, a hydraulic three-way ball valve and an electric three-way ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110290556.9A CN112942021A (en) | 2021-03-18 | 2021-03-18 | Take instant heating type asphalt box of heat preservation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110290556.9A CN112942021A (en) | 2021-03-18 | 2021-03-18 | Take instant heating type asphalt box of heat preservation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112942021A true CN112942021A (en) | 2021-06-11 |
Family
ID=76226565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110290556.9A Pending CN112942021A (en) | 2021-03-18 | 2021-03-18 | Take instant heating type asphalt box of heat preservation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112942021A (en) |
-
2021
- 2021-03-18 CN CN202110290556.9A patent/CN112942021A/en active Pending
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