CN214370935U - Short-distance low-temperature hot air generating device - Google Patents
Short-distance low-temperature hot air generating device Download PDFInfo
- Publication number
- CN214370935U CN214370935U CN202120286067.1U CN202120286067U CN214370935U CN 214370935 U CN214370935 U CN 214370935U CN 202120286067 U CN202120286067 U CN 202120286067U CN 214370935 U CN214370935 U CN 214370935U
- Authority
- CN
- China
- Prior art keywords
- hot air
- hot
- heating chamber
- air
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a hot-blast generating device of short distance low temperature includes: the device comprises a burner, a hot blast stove, an air inlet, a heating chamber, a hot blast guide plate, an exhaust pipe, a return air pipe and the like; the combustor is connected to hot-blast furnace one end, and the other end is connected with the heating chamber through the air intake, and the indoor corner in heating chamber is provided with hot-blast guide plate, and the heating chamber top is provided with the exhaust pipe, and return air pipe one end is connected on the exhaust pipe, and the other end is connected in the hot-blast furnace top. The burner adopts a traditional natural gas burner or a diesel burner and the like. The utility model can avoid the secondary aging coking phenomenon of the waste asphalt material by heating the waste asphalt material with hot air, thereby greatly improving the regeneration efficiency; the residual hot air is recycled, so that the utilization efficiency of hot air energy is improved, and the energy-saving and environment-friendly effects are achieved. The utility model completely realizes the hot recycling operation of the waste asphalt material in the plant mixing on the spot; the method does not need complex operation equipment and operation process, is simple and reliable, mature in technology, easy to implement and remarkable in social and economic benefits.
Description
Technical Field
The utility model belongs to the technical field of the bituminous mixture heating, more specifically relates to a short distance low temperature hot-blast generating device.
Background
The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.
The overall utilization rate of the existing waste asphalt mixture is still at a lower level, and the main reason is that the traditional asphalt waste material thermal regeneration heating equipment has a plurality of defects: the heating mode of fire baking is adopted, the high temperature of flame is directly contacted with the asphalt waste, the fire quantity is not easy to control, and the asphalt waste is subjected to secondary aging and coking in the heating process to influence the recycling; in addition, the utilization rate of the waste asphalt materials is low due to the problems that a large amount of blue smoke generated by the traditional heating mode pollutes the environment and the like.
A large number of researches show that the heating operation technology for the asphalt waste materials by adopting a hot air mode is mature, the operation is simple and convenient, and the implementation is easy. When the mixture is heated by hot air, the flame is not directly contacted with the waste asphalt material, but the hot air is generated by the burning flame to heat the waste asphalt material. The method can effectively avoid the phenomena of secondary aging and coking of the waste asphalt material in the heating process.
At present, the conventional industrial hot air heating equipment is large in size, is freshly used for vehicle-mounted hot air heating equipment, is arranged on a flat car, and can be used for hot in-situ plant recycling of waste asphalt materials, so that a short-distance low-temperature hot air generating device is developed under the background, and has remarkable practical value.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a short-distance low-temperature hot air generating device under the prior art for solving the defects in the prior asphalt waste material heating technology.
In order to achieve the above object, the utility model adopts the following technical means:
a short-distance low-temperature hot air generating device is characterized by comprising a burner, a hot air furnace, an air inlet, a heating chamber, an exhaust pipe and a return air pipe;
the combustion end of the combustor is arranged in the hot blast stove;
the hot blast stove is connected with the heating chamber through an air inlet; the exhaust pipe is communicated with the heating chamber and is arranged above the heating chamber for heating the asphalt mixture; the starting end of the return air pipe is connected with the terminal of the exhaust pipe and connected with the upper side of the hot blast stove.
And a hot air guide plate which is favorable for hot air to flow is arranged at a chamber corner in the heating chamber.
The combustor is connected with a natural gas pipe or a diesel oil pipe.
The combustor consists of an air supply system, an ignition system, a monitoring system, a fuel system and an electric control system.
And hot air generated in the hot air furnace is sent into the heating chamber through the air inlet by adopting a first induced draft fan.
And the air inlet is provided with a first temperature and speed sensor for monitoring the temperature and the air speed of hot air entering the heating chamber.
And a second temperature and air speed sensor and a second draught fan are arranged at the joint of the exhaust pipe and the return air pipe.
The exhaust pipe is connected with the return air pipe in a three-way mode.
The inner side of the shell of the hot blast stove is made of refractory bricks, and the outer sides of the refractory bricks are wrapped with high-temperature-resistant heat-insulating layers.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model effectively avoids the direct contact between the flame or air with high temperature and the waste asphalt material by using hot air to heat the asphalt mixture, the hot air generated by the hot-blast stove is changed into low-temperature hot air after entering the heating chamber, but the total energy of the hot air entering the combustion chamber can not be reduced by improving the flow speed of the hot air, so that the waste asphalt material can be quickly heated and the secondary aging coking phenomenon of the waste asphalt material can be avoided,
the utility model discloses a set up the return air duct with the hot-blast stove of surplus hot-blast reintroduction in, increased the utilization efficiency of hot-blast energy, energy-concerving and environment-protective.
The utility model is arranged on the flat car, thus realizing the hot recycling operation of the waste asphalt materials in the plant on the spot; does not need complex operation equipment and operation process, is simple and reliable, has mature technology and is easy to implement.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a short-distance low-temperature hot air generating device.
In the figure: the system comprises a combustor, a hot blast stove, an air inlet, a heating chamber, a hot blast guide plate, a 6 exhaust pipe, a return air pipe, a first temperature and air speed sensor, a first induced draft fan, a second temperature and air speed sensor and a second induced draft fan, wherein the combustor is 1, the hot blast stove is 2, the air inlet is 3, the heating chamber is 4, the hot blast guide plate is 5, the exhaust pipe is 6, the return air pipe is 7, the first temperature and air speed sensor is 8, the first induced draft fan is 9, the second temperature and air speed sensor is 10, and the second induced draft fan is 11.
Detailed Description
The structure and operation of the present invention will be described in further detail with reference to fig. 1.
As shown in fig. 1, the utility model provides a short distance low temperature hot air generating device, include: the device comprises a combustor 1, a hot blast stove 2, an air inlet 3, a heating chamber 4, a hot blast guide plate 5, an exhaust pipe 6, a return air pipe 7 and the like.
2 one ends of hot-blast furnace are connected combustor 1, and the other end is connected and is connected with heating chamber 4 through air intake 3, and the room angle in heating chamber 4 is provided with hot-blast guide plate 5, and heating chamber 4 top is provided with exhaust pipe 6, and 7 one end of return air pipe are connected on exhaust pipe 6, and the other end is connected in 2 tops of hot-blast furnace.
The burner adopts a traditional burner taking natural gas or diesel oil and the like as fuel.
The flame of the burner is burnt at the right side of the hot blast stove, and the volume of the hot blast stove is 1/3 of the traditional hot blast stove, so that the transportation and the maintenance are convenient; the inner side of the shell is made of refractory bricks, and the outer side of the refractory bricks is wrapped with a high-temperature-resistant heat-insulating layer to prevent temperature loss.
The hot air generated in the hot blast stove is sent into the heating chamber through the air inlet by adopting a first induced draft fan, and after the hot air flows into the heating chamber, the hot air heats the asphalt waste material in the heating chamber through the contact with the asphalt waste material.
And a hot air guide plate is arranged at a chamber corner in the heating chamber and used for guiding the flow direction of hot air.
An exhaust pipe is arranged above the heating chamber, and part of hot air in the heating chamber is exhausted into the atmosphere through the exhaust pipe.
The return air pipe is connected to the exhaust pipe, and the other part of hot air flows into the hot air furnace again through the return air pipe, so that the heat can be recycled, and the heat utilization rate is improved.
Preferably, the combustor is provided with an air supply system, an ignition system, a monitoring system, a fuel system and an electric control system, and the fire quantity can be adjusted according to the requirement.
Preferably, the air inlet of the heating chamber is provided with a first temperature and air speed sensor for monitoring the temperature and the air inlet speed of hot air entering the heating chamber.
Preferably, a second temperature and air speed sensor is arranged at the joint of the exhaust pipe and the return air pipe, so as to provide data support for intelligently controlling the flow rate of hot air in the heating chamber; and set up the second draught fan here, can be through the heating efficiency in analysis temperature and the intelligent control heating chamber of wind speed data.
Preferably, the exhaust pipe and the return air pipe are connected in a three-way mode, and the exhaust pipe and the return air pipe are provided with a dust removal filtering device as required.
The following description of the functions and operations of the present invention is specifically as follows:
the device mainly comprises the following parts:
(1) burner with a burner head
The burner adopts a traditional natural gas burner or a diesel burner and the like, is provided with an air supply system, an ignition system, a monitoring system, a fuel system and an electric control system, and can adjust the fire quantity as required.
(2) Hot-blast stove
The flame of the burner is burned at one end of the hot blast stove, the inner side of the hot blast stove shell is made of refractory bricks, and the outer side of the refractory bricks is wrapped with a high-temperature-resistant heat-insulating layer which is mainly used for preventing heat loss in the hot blast stove.
(3) Air inlet
The hot air generated in the hot air furnace flows into the heating chamber through an air inlet at the other end of the hot air furnace, and the air inlet of the heating chamber is provided with a temperature sensor and an air speed sensor for monitoring the temperature of the hot air and the air inlet speed.
(4) Heating chamber
After the hot air flows into the heating chamber, the hot air heats the waste asphalt material in the heating chamber through contact with the waste asphalt material.
(5) Draught fan
The induced draft fan is mainly used for controlling the flow speed of hot air in the device and guiding flame in the hot air furnace, so that uneven heating of the hot air furnace is avoided.
(6) Hot air guide plate
And a hot air guide plate is arranged at a chamber corner in the heating chamber and used for guiding the flow direction of hot air.
(7) Exhaust pipe
An exhaust pipe is arranged above the heating chamber, and part of hot air in the heating chamber is exhausted into the atmosphere through the exhaust pipe.
(8) Temperature and wind speed sensor
The device is used for monitoring and recording the temperature and the hot air flow velocity data in the device in real time and assisting the draught fan to heat the mixture.
(9) Return air pipe
The return air pipe is connected to the exhaust pipe, and the other part of the hot air in the heating chamber flows into the hot air furnace again through the return air pipe, so that the heat can be recycled, and the heat utilization efficiency can be improved.
Secondly, the device has simple structure, high heating speed and convenient operation.
1) Mounting a burner, a hot blast stove, a heating furnace and other devices on the flat car;
2) before starting, checking whether devices such as a combustor and the like are normal;
3) starting a burner;
4) adjusting the flame size of the burner according to the temperature detected by the air inlet temperature sensor;
5) the wind speed sensor analyzes data through the singlechip to ensure that the wind speed of hot wind conveyed to the heating chamber is within a certain range, the temperature of input hot wind is controlled by controlling the wind quantity in the return air pipe, if the two are not adjusted in place, the input gas quantity or diesel oil quantity is adjusted, the output heat value of the burner is controlled, and the temperature and the wind quantity output by the hot wind device are dynamically adjusted.
6) Starting an asphalt waste material conveying device in the heating furnace;
7) conveying the waste asphalt material into a heating furnace, and starting heating;
8) and after the asphalt waste materials are heated, closing the burners and other devices.
The above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify or equally replace the specific embodiments of the present invention, and these modifications or equivalents do not depart from the spirit and scope of the present invention, which is all within the protection scope of the claims of the present invention.
Claims (9)
1. A short-distance low-temperature hot air generating device is characterized by comprising a burner, a hot air furnace, an air inlet, a heating chamber, an exhaust pipe and a return air pipe;
the combustion end of the combustor is arranged in the hot blast stove;
the hot blast stove is connected with the heating chamber through an air inlet; the exhaust pipe is communicated with the heating chamber and is arranged above the heating chamber for heating the asphalt mixture; the starting end of the return air pipe is connected with the terminal of the exhaust pipe and connected with the upper side of the hot blast stove.
2. The short-distance low-temperature hot air generating device as claimed in claim 1, wherein the chamber corner in the heating chamber is provided with a hot air guide plate for facilitating the flow of hot air.
3. The short distance low temperature hot air generating apparatus according to claim 1, wherein the burner is connected to a natural gas pipe or a diesel pipe.
4. The short-distance low-temperature hot air generating device as claimed in claim 1, wherein the burner is composed of an air supply system, an ignition system, a monitoring system, a fuel system and an electric control system.
5. The short-distance low-temperature hot air generating device as claimed in claim 1, wherein the hot air generated in the hot air furnace is sent into the heating chamber through the air inlet by a first induced draft fan.
6. The short-distance low-temperature hot air generating device as claimed in claim 1, wherein the air inlet is provided with a first temperature and speed sensor for monitoring the temperature and speed of hot air entering the heating chamber.
7. The short-distance low-temperature hot air generating device as claimed in claim 1, wherein a second temperature and air speed sensor and a second induced draft fan are arranged at the joint of the exhaust pipe and the return air pipe.
8. The short-distance low-temperature hot air generating device as claimed in claim 1, wherein the exhaust pipe is connected with the return air pipe in a three-way manner.
9. The short-distance low-temperature hot air generation device as claimed in claim 1, wherein the inner side of the shell of the hot blast stove is made of refractory bricks, and the outer sides of the refractory bricks are wrapped with high-temperature-resistant insulating layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120286067.1U CN214370935U (en) | 2021-02-01 | 2021-02-01 | Short-distance low-temperature hot air generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120286067.1U CN214370935U (en) | 2021-02-01 | 2021-02-01 | Short-distance low-temperature hot air generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214370935U true CN214370935U (en) | 2021-10-08 |
Family
ID=77963372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120286067.1U Active CN214370935U (en) | 2021-02-01 | 2021-02-01 | Short-distance low-temperature hot air generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214370935U (en) |
-
2021
- 2021-02-01 CN CN202120286067.1U patent/CN214370935U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202734221U (en) | Vertical energy-saving environmental-protection boiler | |
| CN201778080U (en) | Heat accumulating type soaking pit furnace | |
| CN103088178B (en) | Blast furnace hot-blast stove flue gas self-circulation combustion method and system | |
| CN206572939U (en) | The fuel gas table kiln stove of magnetic tape trailer Flash Gas Compression Skid System | |
| CN103727527A (en) | High-power practical gas catalytic combustion kiln | |
| CN203273907U (en) | Combustion air system of large-scale household garbage incinerator | |
| CN214370935U (en) | Short-distance low-temperature hot air generating device | |
| CN206192135U (en) | Regenerative heating furnace controlling means that commutates | |
| CN207006208U (en) | The combustion gas furnace to be heated up for flue gas in industrial waste gas denitration | |
| CN116658913A (en) | Asphalt smoke incinerator and control method thereof | |
| CN203869038U (en) | Thermal storage combustion device | |
| CN203224116U (en) | Air source biomass drying energy-saving and environment-friendly system | |
| CN202835424U (en) | Superconducting flue gas waste heat recovery combustion-supporting system | |
| CN206600801U (en) | A kind of fractional combustion thermal-storage burning device utilizing radiant tube | |
| CN205838912U (en) | A kind of coke oven combustion chamber segmentation supply heater | |
| CN105925276B (en) | A kind of coke oven combustion chamber segmentation gas supply heating device and its method | |
| CN210079253U (en) | Low temperature flue gas SCR deNOx systems | |
| CN207760402U (en) | A kind of novel steel wire annealing device | |
| CN201778008U (en) | Thermal-storage burning-and-coking heating furnace | |
| CN202868681U (en) | Oxygen-enriched combustion device for waste pyrolysis flammable gas | |
| CN201355041Y (en) | Single preheating heat accumulating type inflamer | |
| CN202419690U (en) | Optimized combustion control device for industrial furnace kiln | |
| CN207279689U (en) | A kind of grate firing boiler flue gas oxygen content control system based on flue gas recirculation | |
| CN105115312A (en) | Method for utilizing kiln flue gas to perform secondary mixed combustion | |
| CN206609304U (en) | Heating furnace with heat-accumulating burner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |