Asphalt production waste heat recovery device

Abstract

According to the technical scheme, the asphalt production waste heat recovery device is characterized in that the asphalt production waste heat recovery device comprises a box body, a sliding groove is formed in the top face of the box body, a sliding plate is arranged in the sliding groove in a sleeved mode, a communicating pipe is arranged on the top face of the sliding plate, and the communicating pipe penetrates through the top face of the sliding plate; a sliding pipe is arranged in the communicating pipe in a sleeved mode, the sliding pipe is composed of a disc part, located on the outer wall, of a cylindrical pipe part and a circular truncated cone part at the top end, a spring is arranged on the outer wall face of the cylindrical part of the sliding pipe in a sleeved mode, and a plurality of exhaust holes are formed in the outer wall face of the cylindrical part of the sliding pipe. Through the sleeving design of the sliding pipe and the communicating pipe, the sliding pipe and the communicating pipe can be matched with the spring, and when gas in the box body is heated to expand to reach a threshold value, thrust larger than the elastic force of the spring can be generated, so that the sliding pipe is ejected out of the exhaust hole part, it is guaranteed that the internal gas is exhausted, and it is guaranteed that the internal gas pressure approaches to balance.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt processing, in particular to a waste heat recovery device for asphalt production. Background Art

[0002] Asphalt concrete refers to a mixture of artificially selected mineral materials with a certain graded composition, such as crushed stone or crushed gravel, stone chips or sand, mineral powder, etc., and a certain proportion of road asphalt materials, mixed under strictly controlled conditions. It has the advantages of high strength and good integrity, and is a representative material for building high-grade asphalt pavement.

[0003] A waste heat recovery device for modified asphalt production with publication number CN207831681U has the following defects during use:

[0004] The utility model has a scientific and reasonable structure, is safe and convenient to use, and is provided with a heat absorption circulation pipe to recover the waste heat from asphalt production, thereby avoiding heat waste and preventing the loss of resources. A circulation pump is provided to absorb the heat from the waste heat from asphalt production with water in the water tank. A motor and a stirring blade are provided to fully dissipate the waste heat from asphalt production, thereby preventing the asphalt from being hot inside and cold outside. However, in actual use, when heat accumulates inside the heating box, it is very likely to cause the internal asphalt smoke and smoke to expand, which is very likely to cause safety hazards when the threshold is exceeded. For this reason, we propose a waste heat recovery device for asphalt production Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides an asphalt production waste heat recovery device, which solves the problem that when heat accumulates inside the heating box during actual use, it is very likely to cause the internal asphalt smoke and smoke to expand, and when it exceeds the threshold, it is very likely to cause a safety hazard.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A waste heat recovery device for asphalt production includes a box body, a sliding groove is opened on the top surface of the box body, a sliding plate is sleeved inside the sliding groove, a first connecting pipe is provided on the top surface of the sliding plate, the first connecting pipe passes through the top surface of the sliding plate, a sliding pipe is sleeved inside the first connecting pipe, the sliding pipe is composed of a cylindrical tube part, a disc part located on the outer wall and a frustum part at the top, a spring is sleeved on the outer wall surface of the cylindrical part of the sliding pipe, and a plurality of exhaust holes are opened on the outer wall surface of the cylindrical part of the sliding pipe.

[0008] Preferably, a first fixed box is fixedly installed inside the box body, a driving motor is fixedly installed inside the first fixed box, and a heating box is fixedly installed on the top surface of the first fixed box.

[0009] Preferably, a rotating rod is provided inside the heating box, the output end of the driving motor passes through the top surface of the first fixed box and the bottom surface of the heating box and is fixedly installed with the bottom end of the rotating rod, and the outer wall surface of the rotating rod is provided with two stirring blades.

[0010] Preferably, the outer wall of the heating box is provided with a second connecting pipe, the second connecting pipe is composed of a spiral pipe and two connected straight pipes, a water storage tank is provided on one side of the box body, and the straight pipe parts of the second connecting pipe are all connected to the water storage tank.

[0011] Preferably, a top cover is fixedly mounted on the top surface of the water storage tank, a second fixed box is fixedly mounted on the top surface of the top cover, and a pressure pump is fixedly mounted inside the second fixed box.

[0012] Preferably, the outer wall of the heating box has a discharge pipe, the discharge pipe passes through one side of the box body and extends out of the box body, the discharge pipe passes through the outer wall of the heating box, a stabilizing hole is opened on the outer wall of the discharge pipe, a stop valve is provided on the outer wall of the discharge pipe, and the stop valve is limited by the stabilizing hole opened on the outer wall of the discharge pipe.

[0013] In summary, the utility model mainly has the following beneficial effects:

[0014] 1. By setting the sliding tube, the sleeve design of the sliding tube and the first connecting tube can cooperate with the spring. When the internal gas of the box body expands due to heat and reaches a threshold, a thrust greater than the spring elastic force can be generated, so that the sliding tube is pushed out of the exhaust hole to ensure the internal gas is discharged. When the gas pressure approaches equilibrium, the elastic force of the spring will pull the sliding tube back to its original position to ensure the internal thermal insulation performance under normal conditions as much as possible.

[0015] 2. By setting up a second connecting pipe and designing the second connecting pipe, the spiral pipe part can ensure that the heating box is wound around the whole as much as possible, ensuring that water can pass through the whole part of the heating box to avoid uneven heating. The straight pipe part can be connected with the water storage tank to ensure that the circulation can proceed normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the split structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the box structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the heating box structure of the utility model.

[0020] Figure numerals: 1. box body; 2. sliding groove; 3. sliding plate; 4. first connecting pipe; 5. sliding pipe; 6. spring; 7. exhaust hole; 8. first fixed box; 9. driving motor; 10. heating box; 11. rotating rod; 12. stirring fan blade; 13. second connecting pipe; 14. water storage tank; 15. top cover; 16. second fixed box; 17. pressure pump; 18. discharge pipe; 19. stop valve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] refer to Figure 1-Figure 4 , a waste heat recovery device for asphalt production, comprising a box body 1, a sliding groove 2 is provided on the top surface of the box body 1, a sliding plate 3 is sleeved inside the sliding groove 2, a first connecting pipe 4 is provided on the top surface of the sliding plate 3, the first connecting pipe 4 passes through the top surface of the sliding plate 3, a sliding pipe 5 is sleeved inside the first connecting pipe 4, the sliding pipe 5 is composed of a cylindrical tube part located on the disc part of the outer wall and a truncated cone part at the top, through the sleeve design of the sliding pipe 5 and the first connecting pipe 4, it can cooperate with the spring 6, when the internal gas of the box body 1 is heated and expanded to a threshold value, a thrust greater than the elastic force of the spring 6 can be generated, so that the sliding pipe 5 is pushed out of the exhaust hole 7 to ensure the internal gas discharge, when the gas pressure approaches equilibrium, the elastic force of the spring 6 will pull the sliding pipe 5 back to its original position, to ensure the internal thermal insulation performance under normal conditions as much as possible, the outer wall surface of the cylindrical part of the sliding pipe 5 is sleeved with a spring 6, and the outer wall surface of the cylindrical part of the sliding pipe 5 is provided with a plurality of exhaust holes 7;

[0023] A first fixed box 8 is fixedly installed inside the box body 1, a driving motor 9 is fixedly installed inside the first fixed box 8, a heating box 10 is fixedly installed on the top surface of the first fixed box 8, and the design of the heating box 10 can be used as a driving device to drive the stirring element inside the heating box 10, so that it can normally play the role of stirring the internal asphalt. A rotating rod 11 is arranged inside the heating box 10, and the output end of the driving motor 9 passes through the top surface of the first fixed box 8 and the bottom surface of the heating box 10 and is fixedly installed with the bottom end of the rotating rod 11. The outer wall surface of the rotating rod 11 is provided with two stirring fan blades 12. The design of the blades 12 can increase the contact area during stirring, and avoid the accumulation of some residual heat inside the asphalt, so that the heat cannot be completely recovered. The outer wall of the heating box 10 is sleeved with a second connecting pipe 13, and the second connecting pipe 13 is composed of a spiral pipe and two connected straight pipes. Through the design of the second connecting pipe 13, the spiral pipe part can ensure that the heating box 10 is wound as a whole as much as possible, and ensure that water can pass through the entire part of the heating box 10 to avoid uneven heating. The straight pipe part can be connected with the water storage tank 14 to ensure that the circulation can proceed normally. A storage tank 14 is provided on one side of the box body 1. The water tank 14 and the straight pipe part of the second connecting pipe 13 are connected to the water tank 14. Through the design of the water tank 14, it is possible to cooperate with the driving device to ensure that the water that absorbs heat can circulate normally, so that the water that absorbs heat can dissipate heat through continuous flow to facilitate the next absorption of heat. A top cover 15 is fixedly installed on the top surface of the water tank 14, and a second fixed box 16 is fixedly installed on the top surface of the top cover 15. A pressure pump 17 is fixedly installed inside the second fixed box 16. Through the design of the pressure pump 17, the inside of the water tank 14 can be pressurized to ensure that the water inside can be pressed into the second connecting pipe 13. In order to enable it to enter the circulation normally, it is used to ensure that the water can quickly absorb heat and dissipate heat by flowing. The outer wall of the heating box 10 is provided with a discharge pipe 18. The discharge pipe 18 passes through one side of the box body 1 and extends out of the box body 1. The discharge pipe 18 passes through the outer wall of the heating box 10. A stabilizing hole is opened on the outer wall of the discharge pipe 18. A stop valve 19 is provided on the outer wall of the discharge pipe 18. The stop valve 19 is limited by the stabilizing hole opened on the outer wall of the discharge pipe 18. Through the design of the stop valve 19, the temporary storage and unloading status of the heating box 10 can be controlled, making the unloading more convenient and the use of the device more flexible.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An asphalt production waste heat recovery device, comprising a housing (1), characterized in that: The top surface of the box body (1) is provided with a sliding groove (2), the interior of the sliding groove (2) is provided with a sliding plate (3), the top surface of the sliding plate (3) is provided with a first connecting pipe (4), the first connecting pipe (4) passes through the top surface of the sliding plate (3), the interior of the first connecting pipe (4) is provided with a sliding pipe (5), the sliding pipe (5) is composed of a cylindrical tube part, a disc part located on the outer wall and a frustum part at the top, the outer wall surface of the cylindrical part of the sliding pipe (5) is provided with a spring (6), and the outer wall surface of the cylindrical part of the sliding pipe (5) is provided with a plurality of exhaust holes (7).

2. The asphalt production waste heat recovery device according to claim 1, characterized in that: A first fixed box (8) is fixedly installed inside the box body (1), a driving motor (9) is fixedly installed inside the first fixed box (8), and a heating box (10) is fixedly installed on the top surface of the first fixed box (8).

3. The asphalt production waste heat recovery device according to claim 2, characterized in that: A rotating rod (11) is arranged inside the heating box (10); the output end of the driving motor (9) passes through the top surface of the first fixed box (8) and the bottom surface of the heating box (10) and is fixedly installed with the bottom end of the rotating rod (11); and the outer wall surface of the rotating rod (11) is provided with two stirring blades (12).

4. The asphalt production waste heat recovery device according to claim 2, characterized in that: The outer wall of the heating box (10) is sleeved with a second connecting pipe (13), which is composed of a spiral pipe and two connected straight pipes. A water storage tank (14) is arranged on one side of the box body (1), and the straight pipe parts of the second connecting pipe (13) are all connected to the water storage tank (14).

5. The asphalt production waste heat recovery device according to claim 4, characterized in that: A top cover (15) is fixedly mounted on the top surface of the water storage tank (14), a second fixed box (16) is fixedly mounted on the top surface of the top cover (15), and a pressure pump (17) is fixedly mounted inside the second fixed box (16).

6. The asphalt production waste heat recovery device according to claim 4, characterized in that: The outer wall surface of the heating box (10) is provided with a discharge pipe (18), the discharge pipe (18) passes through one side of the box body (1) and extends out of the box body (1), the discharge pipe (18) passes through the outer wall surface of the heating box (10), a stabilizing hole is provided on the outer wall surface of the discharge pipe (18), a stop valve (19) is provided on the outer wall surface of the discharge pipe (18), and the stop valve (19) is limited by the stabilizing hole provided on the outer wall surface of the discharge pipe (18).

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