CN216592828U

CN216592828U - Waste heat recovery device of sintering machine

Info

Publication number: CN216592828U
Application number: CN202122939596.XU
Authority: CN
Inventors: 吴海洲
Original assignee: Hainan Chuangbao Technology Co ltd
Current assignee: Hainan Chuangbao Technology Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-05-24
Anticipated expiration: 2031-11-26

Abstract

The utility model discloses a waste heat recovery device of a sintering machine, which relates to the field of sintering machine equipment and comprises a smoke pipe assembly, wherein the upper end and the lower end of the smoke pipe assembly are respectively provided with a communicating assembly, the smoke pipe assembly comprises a smoke pipeline, the smoke pipeline is arranged into a hollow cylinder, a cavity is formed in the side wall of the smoke pipeline, the upper end and the lower end of the smoke pipeline are respectively fixedly connected with a smoke exhaust pipe, the inner cavity of the smoke exhaust pipe is communicated with the cavity, and a plurality of outer fins which are vertically distributed at equal intervals and a plurality of outer water pipes which are distributed in an annular array are arranged between the two communicating assemblies. According to the utility model, the outer side wall of the flue gas pipeline is fixedly connected with the plurality of outer fins and the plurality of outer water pipes, and the inner side wall of the flue gas pipeline is fixedly connected with the plurality of inner fins and the plurality of inner water pipes, so that the outer water pipes and the inner water pipes can be heated, the heat exchange efficiency of the device to hot flue gas is further improved, and the maximum utilization of resources is realized.

Description

Waste heat recovery device of sintering machine

Technical Field

The utility model relates to the field of sintering machine equipment, in particular to a waste heat recovery device of a sintering machine.

Background

The sintering machine is suitable for sintering operation of large-scale ferrous metallurgy sintering plants, is mainly suitable for sintering treatment of iron ore powder in large-scale and medium-scale sintering plants, and is used as one of important devices in process production in the steel industry.

At present, the existing sintering machine usually carries out waste heat recovery by heating water into steam, but the existing waste heat recovery device has low utilization efficiency of hot flue gas, and is difficult to realize the maximum utilization of resources. Therefore, it is necessary to provide a waste heat recovery apparatus for a sintering machine to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a waste heat recovery device of a sintering machine, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a waste heat recovery device of sintering machine, includes the tobacco pipe subassembly, the upper and lower both ends of tobacco pipe subassembly all are provided with the intercommunication subassembly, the tobacco pipe subassembly includes the flue gas pipeline, the flue gas pipeline sets up to hollow cylindric, the cavity has been seted up to the inside cavity that is provided with of lateral wall of flue gas pipeline, the equal fixedly connected with in upper and lower both ends of flue gas pipeline discharge fume the pipe, and discharge fume the inner chamber and the cavity intercommunication of pipe, two be provided with a plurality of outer fins that are equidistant vertical distribution and a plurality of outer water pipes that are annular array and distribute between the intercommunication subassembly, and the fixed cup joint of outer fin is at the lateral wall of flue gas pipeline, the inboard of flue gas pipeline is provided with a plurality of inner fins that are equidistant vertical distribution and a plurality of inner water pipes that are annular array and distribute, inner fins and flue gas pipeline's inside wall fixed connection.

Preferably, the smoke exhaust pipes are arranged in a plurality, and the smoke exhaust pipes are distributed in an annular array at the upper end and the lower end of the smoke pipeline respectively.

Preferably, a plurality of guide plates distributed in an annular array are arranged in the cavity, the guide plates are in a spiral shape, and the guide plates are fixedly connected with the flue gas pipeline.

Preferably, the communicating component comprises a hollow ring and a hollow disc concentric with the hollow ring, and the hollow ring and the hollow disc are both arranged in a hollow structure.

Preferably, a plurality of connecting pipes distributed in an annular array are fixedly connected between the hollow ring and the hollow disc, and inner cavities at two ends of the connecting pipes are respectively communicated with an inner cavity of the hollow ring and an inner cavity of the hollow disc.

Preferably, the inner cavity of the communicating component positioned at the upper end of the smoke tube component is communicated with a steam tube, the outer side of the communicating component positioned at the lower end of the smoke tube component is provided with a water tank, and the inner cavity of the water tank is communicated with the inner cavity of the communicating component through a communicating pipe.

Preferably, the inner cavities at the upper end and the lower end of the outer water pipe are respectively communicated with the inner cavities of the two hollow rings, and the inner cavities at the upper end and the lower end of the inner water pipe are respectively communicated with the inner cavities of the two hollow discs.

Preferably, the inner cavity of the upper end of the water tank is communicated with a water injection pipe, a ball float valve is arranged at the joint of the water injection pipe and the water tank, and a liquid level detector is arranged at the upper end of the water tank.

The utility model has the technical effects and advantages that:

1. according to the utility model, the outer side wall of the flue gas pipeline is fixedly connected with the plurality of outer fins and the plurality of outer water pipes, and the inner side wall of the flue gas pipeline is fixedly connected with the plurality of inner fins and the plurality of inner water pipes, so that the outer water pipes and the inner water pipes can be heated, the heat exchange efficiency of the device on hot flue gas is further improved, and the maximum utilization of resources is realized;

2. according to the utility model, the guide plates distributed in the annular array are arranged in the cavity, and the guide plates are arranged in a spiral shape and fixedly connected with the flue gas pipeline, so that the flue gas flowing in the cavity can be guided, and the heat exchange efficiency of the flue gas is further improved.

Drawings

Fig. 1 is a perspective view of the overall structure of the present invention.

FIG. 2 is a perspective view of the smoke tube assembly of the present invention.

FIG. 3 is a schematic perspective sectional view of the smoke tube assembly of the present invention.

Fig. 4 is an exploded view of a portion of the structure of the present invention.

In the figure: 1. a smoke tube assembly; 2. a communicating component; 3. a flue gas duct; 4. a cavity; 5. a smoke exhaust pipe; 6. an outer fin; 7. an outer water pipe; 8. an inner fin; 9. an inner water pipe; 10. a hollow ring; 11. a hollow disc; 12. a connecting pipe; 13. a steam pipe; 14. a baffle; 16. a water tank; 17. a communicating pipe; 18. a water injection pipe; 19. a float valve; 20. a liquid level detector.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a waste heat recovery device of a sintering machine as shown in figures 1-4, which comprises a smoke tube component 1, wherein the upper end and the lower end of the smoke tube component 1 are both provided with a communicating component 2, the smoke tube component 1 comprises a smoke tube 3, the smoke tube 3 is arranged into a hollow cylinder, the side wall of the smoke tube 3 is internally provided with a cavity 4, the upper end and the lower end of the smoke tube 3 are both fixedly connected with smoke discharge tubes 5, the inner cavity of the smoke discharge tubes 5 is communicated with the cavity 4, the smoke discharge tubes 5 are provided with a plurality of smoke discharge tubes 5, the smoke discharge tubes 5 are respectively distributed at the upper end and the lower end of the smoke tube 3 in an annular array manner, the smoke discharge tubes 5 are used for conveying smoke to ensure that the smoke can flow in the cavity 4, and the smoke discharge tubes 5 at the upper end of the smoke tube component 1 are communicated with external smoke treatment equipment for carrying out the next treatment on the smoke.

Secondly, be provided with a plurality of outer fins 6 that are equidistant vertical distribution and a plurality of outer water pipe 7 that are the annular array and distribute between two intercommunication subassemblies 2, and outer fin 6 is fixed to cup joint at flue gas pipeline 3's lateral wall, the setting of a plurality of outer fins 6 is used for increasing the heat conduction effect between flue gas pipeline 3 and the outer water pipe 7, flue gas pipeline 3's inboard is provided with a plurality of interior fins 8 that are equidistant vertical distribution and a plurality of interior water pipe 9 that are the annular array and distribute, interior fin 8 and flue gas pipeline 3's inside wall fixed connection, the setting of a plurality of interior fins 8 is used for increasing the heat conduction effect between flue gas pipeline 3 and interior water pipe 9, and flue gas pipeline 3's inside and outside both sides are provided with interior water pipe 9 and outer water pipe 7 respectively, the efficiency that waste heat recovery was carried out to the flue gas to this device of improvement that can the maximize.

Further, be provided with a plurality of guide plates 14 that are the distribution of annular array in cavity 4, guide plate 14 is the heliciform, and guide plate 14 and flue gas pipeline 3 fixed connection, the setting of guide plate 14 is used for increasing the flow path of flue gas in cavity 4 to ensure that the heat in the flue gas can obtain abundant heat transfer.

Specifically, intercommunication subassembly 2 includes hollow ring 10 and the concentric hollow dish 11 with it, and hollow ring 10 and hollow dish 11 all set up to hollow structure, and a plurality of connecting pipes 12 that are the annular array and distribute of fixedly connected with between hollow ring 10 and the hollow dish 11, and the both ends inner chamber of connecting pipe 12 communicates with the inner chamber of hollow ring 10 and the inner chamber of hollow dish 11 respectively, consequently the pipe 5 of discharging fume can pass the space between hollow ring 10 and the hollow dish 11.

And the inner cavities at the upper and lower ends of the outer water pipe 7 are respectively communicated with the inner cavities of the two hollow rings 10, and the inner cavities at the upper and lower ends of the inner water pipe 9 are respectively communicated with the inner cavities of the two hollow discs 11, so that the outer water pipe 7, the inner water pipe 9, the hollow rings 10, the hollow discs 11 and the connecting pipe 12 can be communicated with each other.

Furthermore, the inner cavity of the communicating component 2 at the upper end of the smoke tube component 1 is communicated with a steam tube 13, the steam tube 13 is used for conveying steam in the inner cavity of the communicating component 2 at the upper end of the smoke tube component 1, the outer side of the communicating component 2 at the lower end of the smoke tube component 1 is provided with a water tank 16, the inner cavity of the water tank 16 is communicated with the inner cavity of the communicating component 2 through a communicating tube 17, and the water tank 16 and the communicating tube 17 are arranged for conveying water to the inner cavity of the communicating component 2 at the lower end of the smoke tube component 1.

A water injection pipe 18 is communicated with an upper end inner cavity of the water tank 16, a ball float valve 19 is arranged at the joint of the water injection pipe 18 and the water tank 16, a liquid level detector 20 is arranged at the upper end of the water tank 16, the liquid level detector 20 is used for detecting the water level in the inner cavity of the water tank 16, and the ball float valve 19 is used for controlling the water injection pipe 18 to inject water into the inner cavity of the water tank 16.

The working principle of the utility model is as follows:

when the device works, the water tank 16 adds water to the inner cavities of the outer water pipe 7 and the inner water pipe 9 through the communicating pipe 17, ensures that the water levels of the inner cavities of the outer water pipe 7 and the inner water pipe 9 are kept the same as the inner cavity of the water tank 16 according to the principle of a communicating vessel, then leads hot smoke into the cavity 4 from the smoke exhaust pipe 5 positioned at the lower end of the smoke pipeline 3 and exhausts the hot smoke from the smoke exhaust pipe 5 positioned at the upper end of the smoke pipeline 3;

when the flue gas flows in the cavity 4, the guide plate 14 can guide the flow of the flue gas to increase the flow path of the flue gas, and at the moment, the heat of the flue gas can be conducted by the outer fins 6 and the inner fins 8 to heat the water in the inner cavities of the outer water pipe 7 and the inner water pipe 9 respectively until the water is heated into steam and is discharged from the steam pipe 13.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a waste heat recovery device of sintering machine, includes tobacco pipe subassembly (1), its characterized in that: the upper end and the lower end of the smoke pipe assembly (1) are respectively provided with a communicating assembly (2), the smoke pipe assembly (1) comprises a smoke pipeline (3), the smoke pipeline (3) is arranged to be hollow and cylindrical, a cavity (4) is formed in the inner side wall of the smoke pipeline (3), the upper end and the lower end of the smoke pipeline (3) are respectively fixedly connected with a smoke exhaust pipe (5), the inner cavity of the smoke exhaust pipe (5) is communicated with the cavity (4), a plurality of outer fins (6) which are vertically distributed at equal intervals and a plurality of outer water pipes (7) which are distributed in an annular array are arranged between the two communicating assemblies (2), the outer fins (6) are fixedly sleeved on the outer side wall of the smoke pipeline (3), the inner side of the smoke pipeline (3) is provided with a plurality of inner fins (8) which are vertically distributed at equal intervals and a plurality of inner water pipes (9) which are distributed in an annular array, the inner fins (8) are fixedly connected with the inner side wall of the flue gas pipeline (3).

2. The waste heat recovery device of a sintering machine according to claim 1, characterized in that: the smoke exhaust pipes (5) are arranged in a plurality, and the smoke exhaust pipes (5) are distributed in an annular array mode at the upper end and the lower end of the smoke pipeline (3) respectively.

3. The waste heat recovery device of a sintering machine according to claim 2, characterized in that: a plurality of guide plates (14) distributed in an annular array are arranged in the cavity (4), the guide plates (14) are in a spiral shape, and the guide plates (14) are fixedly connected with the flue gas pipeline (3).

4. The waste heat recovery device of a sintering machine according to claim 3, characterized in that: the communicating component (2) comprises a hollow ring (10) and a hollow disc (11) concentric with the hollow ring, and the hollow ring (10) and the hollow disc (11) are both arranged to be hollow structures.

5. The waste heat recovery device of a sintering machine according to claim 4, characterized in that: a plurality of connecting pipes (12) distributed in an annular array are fixedly connected between the hollow ring (10) and the hollow disc (11), and inner cavities at two ends of each connecting pipe (12) are respectively communicated with an inner cavity of the hollow ring (10) and an inner cavity of the hollow disc (11).

6. The waste heat recovery device of a sintering machine according to claim 5, characterized in that: the inner cavity of the communicating component (2) positioned at the upper end of the smoke tube component (1) is communicated with a steam tube (13), the outer side of the communicating component (2) positioned at the lower end of the smoke tube component (1) is provided with a water tank (16), and the inner cavity of the water tank (16) is communicated with the inner cavity of the communicating component (2) through a communicating tube (17).

7. The waste heat recovery device of a sintering machine according to claim 6, characterized in that: the inner cavities of the upper end and the lower end of the outer water pipe (7) are respectively communicated with the inner cavities of the two hollow rings (10), and the inner cavities of the upper end and the lower end of the inner water pipe (9) are respectively communicated with the inner cavities of the two hollow discs (11).

8. The waste heat recovery device of a sintering machine according to claim 7, characterized in that: the upper end inner chamber intercommunication of water tank (16) has water injection pipe (18), the junction of water injection pipe (18) and water tank (16) is provided with ball-cock assembly (19), the upper end of water tank (16) is provided with liquid level detector (20).