Cyclic heating and recycling equipment for old asphalt concrete

Abstract

The utility model discloses an old asphalt concrete cyclic heating recovery device, and relates to the technical field of old asphalt concrete recovery. The device comprises a bottom plate, a heating box is fixedly installed at the top end of the bottom plate, a purifying barrel is fixedly installed at the top end of the bottom plate, the purifying barrel and the heating box are fixedly connected through an air inlet pipe, a first exhaust fan is fixedly arranged in the air inlet pipe, and a fixing frame is fixedly installed in the purifying barrel. Uniformly distributed through holes are formed in the lower surface of the inner wall of the fixing frame, a circulating box is fixedly mounted on the side, away from the heating box, of the top end of the bottom plate, a connecting pipe fixedly penetrates through the top end of the circulating box, the other end of the connecting pipe penetrates through the purifying barrel, and a storage disc is fixedly mounted at the end, away from the circulating box, of the connecting pipe. Harmful gas in the heating box can be purified, so that the harmful gas reaches the emission standard, and the harmful gas is prevented from damaging workers and the surrounding environment.

Description

Technical Field

[0001] The utility model relates to the technical field of recycling old asphalt concrete, in particular to a circulating heating recycling device for old asphalt concrete. Background Art

[0002] Asphalt concrete is a composite material widely used in road construction. It is made of an asphalt binder and aggregates (such as crushed stone, sand, and mineral powder). This material has high strength, rigidity, and stability, and can withstand heavy loads and adverse weather conditions. Therefore, it is widely used in projects such as highways, sidewalks, parking lots, and airport runways. Asphalt concrete needs to be repaved or repaired after a long period of use, and the old asphalt concrete needs to be recycled.

[0003] Asphalt concrete in the prior art needs to be heated when it is recycled, and a large amount of asphalt fume and harmful gases are generated during the heating process, which pollutes the environment and causes harm to the workers after inhalation. Utility Model Content

[0004] In order to solve the problem that a large amount of asphalt fume and harmful gases are generated during the heating process of asphalt concrete, the purpose of the utility model is to provide a recycling heating and recycling device for old asphalt concrete.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a recycling heating device for old asphalt concrete, comprising a base plate, a heating box is fixedly installed on the top of the base plate, a purification barrel is fixedly installed on the top of the base plate, the purification barrel and the heating box are fixedly connected by an air intake pipe, a first exhaust fan is fixedly provided inside the air intake pipe, a fixed frame is fixedly installed inside the purification barrel, and the lower surface of the inner wall of the fixed frame is provided with evenly distributed through holes, a circulation box is fixedly installed on the side of the top of the base plate away from the heating box, a connecting pipe is fixedly passed through the top of the circulation box, the other end of the connecting pipe passes through the purification barrel, a storage disk is fixedly installed on the end of the connecting pipe away from the circulation box, and evenly distributed spraying pipes are fixedly installed on the bottom end of the storage disk, an air outlet pipe is fixedly passed through the top of the purification barrel, a delivery pipe is fixedly passed through the bottom of the purification barrel, and the other end of the delivery pipe passes through the circulation box.

[0006] Preferably, a filter plate is detachably installed inside the circulation box, a fixed plate is fixedly installed on the top of the filter plate, the fixed plate passes through the circulation box, and slots are provided on both sides of the fixed plate. Support plates are fixedly installed on both sides of the circulation box, a movable rod is movably provided on the top of the support plate, a block is fixedly installed on one end of the movable rod, the block is movably provided in the slot, and the block and the support plate are fixedly connected by a spring.

[0007] Compared with the prior art, the beneficial effects of the present invention are:

[0008] 1. This application can purify the harmful gases in the heating box to meet the emission standards and prevent the harmful gases from causing damage to the workers and the surrounding environment;

[0009] 2. This application can quickly disassemble and assemble the filter plate, improve the efficiency of replacing the filter plate, and facilitate the use of staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0011] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0012] Figure 2 This is a schematic diagram of the structure inside the purification barrel of the present invention.

[0013] Figure 3 This is a schematic diagram of the structure inside the circulation box of the utility model.

[0014] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle.

[0015] In the figure: 1. Base plate; 11. Heating box; 12. Purification barrel; 13. Air inlet pipe; 14. First exhaust fan; 15. Fixed frame; 16. Through hole; 17. Circulation box; 18. Connecting pipe; 19. Storage tray; 191. Spray pipe; 192. Exhaust pipe; 193. Delivery pipe; 2. Filter plate; 21. Fixed plate; 22. Slot; 23. Support plate; 24. Movable rod; 25. Block; 26. Spring; 3. Limiting ring; 4. Mounting block; 41. Stabilizer bar; 5. Gas detector; 6. Bracket; 7. Second exhaust fan; 8. Drain pipe; 81. Control valve. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] Example: Figure 1-4 As shown, the utility model provides a recycling heating equipment for old asphalt concrete, including a base plate 1, a heating box 11 is fixedly installed on the top of the base plate 1, a purification barrel 12 is fixedly installed on the top of the base plate 1, the purification barrel 12 and the heating box 11 are fixedly connected by an air intake pipe 13, a first exhaust fan 14 is fixedly provided inside the air intake pipe 13, a fixing frame 15 is fixedly installed inside the purification barrel 12, and the lower surface of the inner wall of the fixing frame 15 is provided with evenly distributed through holes 16, a circulation box 17 is fixedly installed on the side of the top of the base plate 1 away from the heating box 11, a connecting pipe 18 is fixedly passed through the top of the circulation box 17, and the other end of the connecting pipe 18 passes through the purification barrel 12, a storage disk 19 is fixedly installed on the end of the connecting pipe 18 away from the circulation box 17, and evenly distributed spraying pipes 191 are fixedly installed on the bottom of the storage disk 19, an air outlet pipe 192 is fixedly passed through the top of the purification barrel 12, a delivery pipe 193 is fixedly passed through the bottom of the purification barrel 12, and the other end of the delivery pipe 193 passes through the circulation box 17.

[0018] A filter plate 2 is detachably installed inside the circulation box 17, and a fixed plate 21 is fixedly installed on the top of the filter plate 2. The fixed plate 21 passes through the circulation box 17, and slots 22 are provided on both sides of the fixed plate 21. Support plates 23 are fixedly installed on both sides of the circulation box 17. A movable rod 24 is movably provided on the top of the support plate 23, and a block 25 is fixedly installed on one end of the movable rod 24. The block 25 is movably provided in the slot 22, and the block 25 and the support plate 23 are fixedly connected by a spring 26.

[0019] A limiting ring 3 is fixedly mounted on the outer side of the movable rod 24 . The limiting ring 3 is provided to prevent the movable rod 24 from being separated from the support plate 23 .

[0020] Mounting blocks 4 are fixedly installed on both sides of the block 25, and symmetrically distributed stabilizing rods 41 are fixedly installed on the top of the support plate 23. The stabilizing rods 41 pass through the mounting blocks 4. By setting the mounting blocks 4 and the stabilizing rods 41, the stability of the block 25 during movement is improved.

[0021] A gas detector 5 is provided above the gas outlet pipe 192 . By providing the gas detector 5 , it is possible to detect in real time whether the gas meets the emission standards, so that the staff can replace the purification liquid according to the data of the gas detector 5 .

[0022] A bracket 6 is fixedly installed on the top of the purification barrel 12, and the gas detector 5 and the bracket 6 are fixedly connected. By providing the bracket 6, it is convenient to fix the gas detector 5.

[0023] A second exhaust fan 7 is fixedly installed inside the air outlet pipe 192. By providing the second exhaust fan 7, the gas can be discharged from the air outlet pipe 192 more quickly.

[0024] A drain pipe 8 is fixedly installed on the outside of the circulation box 17 , and a control valve 81 is provided on the outside of the drain pipe 8 . By providing the drain pipe 8 and the control valve 81 , the waste purified liquid can be discharged.

[0025] Working principle: In actual use, the activated carbon is piled into the fixed frame 15, and by turning on the first exhaust fan 14, the harmful gas inside the heating box 11 enters the purification barrel 12 through the air inlet pipe 13, and then the purification liquid inside the circulation box 17 enters the storage tray 19 through the connecting pipe 18 and is sprayed through the spray pipe 191, so that the purification liquid and the harmful gas come into contact and absorb the harmful substances therein, and then the gas continues to rise, and the activated carbon inside the fixed frame 15 adsorbs the particulate matter in the gas, and finally the purified gas is discharged through the outlet pipe 192; through the provided delivery pipe 193, the particulate matter that has not been completely in contact with the harmful gas is discharged. The purified liquid re-enters the circulation box 17 and the impurities therein are filtered through the filter plate 2. By pulling the movable rod 24 away from the fixed plate 21, the movable rod 24 drives the block 25 to move, so that the block 25 disengages from the slot 22 and squeezes the spring 26 to deform it. At this time, the fixed plate 21 is pulled upward, so that the filter plate 2 can be pulled out of the circulation box 17, which is convenient for its replacement and cleaning. Then the replaced or cleaned filter plate 2 is placed in the circulation box 17. At this time, stop applying pressure to the movable rod 24, so that the spring 26 releases the elastic force to drive the block 25 to re-enter the slot 22, completing the fixation of the filter plate 2.

[0026] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A recycling heating and recycling device for old asphalt concrete, comprising a bottom plate (1), characterized in that: A heating box (11) is fixedly mounted on the top of the bottom plate (1), a purification barrel (12) is fixedly mounted on the top of the bottom plate (1), the purification barrel (12) and the heating box (11) are fixedly connected via an air intake pipe (13), a first exhaust fan (14) is fixedly mounted inside the air intake pipe (13), a fixing frame (15) is fixedly mounted inside the purification barrel (12), and the lower surface of the inner wall of the fixing frame (15) is provided with evenly distributed through holes (16), a circulation box (17) is fixedly mounted on the side of the top of the bottom plate (1) away from the heating box (11) ), a connecting pipe (18) is fixedly passed through the top of the circulation box (17), the other end of the connecting pipe (18) passes through the purification barrel (12), a storage plate (19) is fixedly installed on the end of the connecting pipe (18) away from the circulation box (17), and a uniformly distributed spraying pipe (191) is fixedly installed on the bottom end of the storage plate (19), an air outlet pipe (192) is fixedly passed through the top of the purification barrel (12), a delivery pipe (193) is fixedly passed through the bottom of the purification barrel (12), and the other end of the delivery pipe (193) passes through the circulation box (17).

2. The recycling heating and recycling equipment for used asphalt concrete according to claim 1, characterized in that: A filter plate (2) is detachably mounted inside the circulation box (17), a fixed plate (21) is fixedly mounted on the top of the filter plate (2), the fixed plate (21) passes through the circulation box (17), and slots (22) are provided on both sides of the fixed plate (21), support plates (23) are fixedly mounted on both sides of the circulation box (17), a movable rod (24) is movably mounted on the top of the support plate (23), a clamping block (25) is fixedly mounted on one end of the movable rod (24), the clamping block (25) is movably mounted in the clamping slot (22), and the clamping block (25) and the support plate (23) are fixedly connected via a spring (26).

3. The recycling heating and recycling equipment for used asphalt concrete according to claim 2, characterized in that: A limiting ring (3) is fixedly mounted on the outer side of the movable rod (24).

4. The recycling heating and recycling equipment for used asphalt concrete according to claim 2, characterized in that: Mounting blocks (4) are fixedly mounted on both sides of the clamping block (25), and symmetrically distributed stabilizing rods (41) are fixedly mounted on the top of the support plate (23), wherein the stabilizing rods (41) pass through the mounting blocks (4).

5. The recycling heating and recycling equipment for used asphalt concrete according to claim 1, characterized in that: A gas detector (5) is provided above the gas outlet pipe (192).

6. The recycling heating and recycling equipment for used asphalt concrete according to claim 5, characterized in that: A bracket (6) is fixedly mounted on the top of the purification barrel (12), and the gas detector (5) and the bracket (6) are fixedly connected.

7. The recycling heating and recycling equipment for used asphalt concrete according to claim 1, characterized in that: A second exhaust fan (7) is fixedly installed inside the air outlet pipe (192).

8. The recycling heating and recycling equipment for used asphalt concrete according to claim 1, characterized in that: A drain pipe (8) is fixedly mounted on the outside of the circulation box (17), and a control valve (81) is provided on the outside of the drain pipe (8).

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