A full-process heating asphalt regeneration roller

Abstract

The utility model belongs to bitumen regeneration equipment technical field especially relates to a full process heating bitumen regeneration drum. Including the drum body, the drum body feed end, discharge end respectively have the feed smoke box, discharge smoke box, the feed smoke box, discharge smoke box are installed feed combustor and discharge combustor respectively, have the dust extraction flue that communicates in discharge smoke box, discharge smoke box bottom is equipped with the discharge gate. The utility model discloses through setting the combustor of drum both ends and heating to material simultaneously, has realized the full process temperature control, makes the heating of regeneration material more uniform, effectively avoided the problem of local overheating aging and heating deficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of asphalt recycling equipment, and in particular relates to a fully heated asphalt recycling drum. Background Technology

[0002] In the asphalt mixture recycling process, drums are typically used to heat the recycled material. Traditional recycling drums usually only have one burner, located at the feed or discharge end. This structure leads to uneven heating of the recycled material within the drum; the area near the burner is prone to overheating and aging, while the area further away may be underheated, severely affecting the quality and road performance of the recycled material. Summary of the Invention

[0003] The purpose of this invention is to provide a fully heated asphalt recycling drum to solve the problems existing in the prior art.

[0004] The technical solution adopted by this utility model to solve its technical problem is: A fully heated asphalt recycling drum includes a drum body, with a feed smoke box and a discharge smoke box respectively connected to the feed and discharge ends of the drum body. A feed burner and a discharge burner are respectively installed on the feed and discharge smoke boxes. A dust extraction flue is connected to the discharge smoke box, and a discharge port is provided at the bottom of the discharge smoke box.

[0005] Furthermore, the discharge smoke box is connected to a circulating smoke duct, and the other end of the circulating smoke duct is connected to the feed smoke box. A circulating fan is installed on the circulating smoke duct.

[0006] Furthermore, a negative pressure sensor is installed on the feed flue, and a regulating valve is installed on the circulating flue.

[0007] Furthermore, the feeding chamber is equipped with a feeding channel, one end of which is connected to the outside, and the other end of which is connected to the inside of the drum body.

[0008] This utility model has the following beneficial effects: 1. This utility model achieves full-process temperature control by simultaneously heating the material with burners set at both ends of the drum, making the recycled material heat more evenly and effectively avoiding the problems of local overheating and aging and insufficient heating.

[0009] 2. By using a circulating flue and a circulating fan, the high-temperature exhaust gas from the discharge end is led to the feed end to preheat the cold recycled material, recovering the waste heat of the exhaust gas, significantly reducing fuel consumption, and achieving the goal of energy saving.

[0010] 3. By using a negative pressure sensor in conjunction with a regulating valve on the circulating flue, the pressure inside the feed flue can be monitored and adjusted in real time to ensure that it is always in a slightly negative pressure state, preventing hot flue gas from escaping and ensuring a safe and environmentally friendly working environment. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model.

[0012] Figure 2 This is a schematic diagram of the structure of this utility model.

[0013] The components include: 1. Drum body; 2. Feed smoke box; 3. Discharge smoke box; 4. Feed burner; 5. Discharge burner; 6. Dust collection flue; 7. Discharge port; 8. Circulation flue; 9. Circulation fan; 10. Negative pressure sensor; 11. Regulating valve; 12. Feed channel; 13. Rotary rotary valve. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with specific embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the scope of the utility model. Example 1

[0015] like Figure 1 As shown, a fully heated asphalt recycling drum has a feed smoke box 2 and an discharge smoke box 3 connected to both ends of the drum body 1. The feed burner 4 and the discharge burner 5 are respectively installed on the two smoke boxes, heating the recycled material in the drum simultaneously from both ends, ensuring that the heat penetrates the entire length of the drum.

[0016] The upper part of the discharge smoke box 3 is connected to the dust suction flue 6, which is connected to the dust removal system and is used to draw the combustion exhaust gas and dust to the dust removal system through negative pressure; the bottom of the box is provided with a discharge port 7, through which the heated qualified recycled material is discharged.

[0017] The feed box 2 is equipped with a feed channel 12, through which recycled material enters the drum body 1.

[0018] Example 2: This example provides a fully heated asphalt recycling drum, with a structure basically the same as that of Example 1, except that: like Figure 2 As shown, to achieve waste heat recovery, a circulating flue 8 connects the discharge flue 3 and the feed flue 2. A high-temperature resistant circulating fan 9 is installed on the circulating flue 8, which serves as a power source to force part of the waste gas into the feed flue 2. A regulating valve 11 is also installed on the circulating flue 8 to control the amount of waste gas circulating. A negative pressure sensor 10 is installed on the feed flue 2 to monitor its internal pressure. The signal from the negative pressure sensor 10 can be linked with the regulating valve 11, automatically controlling the opening of the regulating valve 11 to ensure that the inside of the feed flue 2 always maintains a slight negative pressure, preventing the escape of flue gas.

[0019] The working principle of this utility model is as follows: Cold recycled material enters the drum body 1 via the rotary valve 13 and feed channel 12. A circulating fan 9 blows a portion of the high-temperature exhaust gas from the discharge smoke box 3 into the feed smoke box 2 through the circulating flue 8, providing initial preheating to the cold material. Subsequently, the recycled material is tumbled and lifted within the drum, simultaneously heated by the feed burner 4 and the discharge burner 5, achieving uniform temperature rise throughout the process. Finally, qualified recycled material is discharged from the discharge port 7, while the main exhaust gas is led to the dust removal system for treatment via the dust extraction flue 6. Throughout the process, the control system, consisting of the negative pressure sensor 10 and the regulating valve 11, ensures a negative pressure environment at the feed end, guaranteeing the safe and stable operation of the system.

[0020] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention.

[0021] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A fully heated asphalt recycling drum, comprising a drum body, characterized in that, The roller body has a feed smoke box and a discharge smoke box connected to its feed and discharge ends, respectively. The feed smoke box and the discharge smoke box are respectively equipped with a feed burner and a discharge burner. The discharge smoke box is connected to a dust suction duct, and the bottom of the discharge smoke box is provided with a discharge port.

2. The fully heated asphalt recycling drum according to claim 1, characterized in that, The discharge smoke box is connected to a circulating smoke duct, and the other end of the circulating smoke duct is connected to the feed smoke box. A circulating fan is installed on the circulating smoke duct.

3. The fully heated asphalt recycling drum according to claim 2, characterized in that, The feed flue is equipped with a negative pressure sensor, and the circulating flue is equipped with a regulating valve.

4. The fully heated asphalt recycling drum according to claim 1, characterized in that, The feeding chamber is equipped with a feeding channel, one end of which is connected to the outside, and the other end of which is connected to the inside of the roller body.

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