High-temperature pyrolysis coal gas waste heat recovery device

Abstract

The utility model discloses a high-temperature pyrolysis coal gas waste heat recovery device which comprises a shell with a coil pipe, a spraying disc rotationally arranged in the shell and a driving assembly arranged outside the shell and used for driving the spraying disc to rotate, the coil pipe comprises a disc body and a heat pipe fixedly connected with the disc body, and the disc body is provided with a gas inlet and a gas outlet which are communicated with the heat pipe; the heat pipe is provided with a plurality of spiral parts, the spraying disc is provided with a plurality of spraying pipes, the spiral parts and the spraying pipes are arranged at intervals in a staggered mode, the axis of the spraying disc and spiral shafts of the spiral parts are collinear, and each spraying pipe is provided with an upper atomization spraying opening and a lower atomization spraying opening. The spraying disc rotates through the driving assembly, the spraying pipe can evenly spray water to the heat pipe, the upper atomization spraying opening of the spraying pipe can spray water to the lower half portion of the upper spiral part, and the lower atomization spraying opening of the spraying pipe can spray water to the upper half portion of the lower spiral part. Therefore, water can be further sprayed to the heat pipe, and waste heat recovery is achieved.

Description

Technical Field

[0001] The present application relates to the field of coal pyrolysis, and in particular to a high-temperature pyrolysis coal gas waste heat recovery device. Background Art

[0002] Coal coking uses coal as raw material. In the coke oven, the coal is heated to 950℃ to 1050℃ under the condition of air isolation, and then undergoes high-temperature dry distillation processes such as drying, pyrolysis, melting, bonding, solidification, shrinkage, etc., to finally obtain coke. In the process of processing coal, the heating process in the coke oven will produce a large amount of waste gas. In order to solve the problem of energy loss and poor economic and environmental protection, the coke oven flue gas waste heat recovery and treatment device is an indispensable device in the coke production process.

[0003] The existing patent (publication number: CN218821712U) discloses a coke oven flue gas waste heat recovery and processing device, including a heat exchange chamber, in which a coil to be cooled and a water pipe for cooling the coil are arranged, and the water pipe is provided with multiple nozzles to recover the waste heat on the coil by spraying.

[0004] However, when the spray pipe sprays the coil for cooling, the water flows from top to bottom. Therefore, the upper part of the coil is wrapped by the water film due to more water contact and cannot quickly dissipate the water by evaporation. The lower part of the coil encounters less water flow, resulting in low waste heat recovery efficiency. Summary of the invention

[0005] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and to provide a high-temperature pyrolysis coal gas waste heat recovery device, which can achieve better waste heat recovery effect by allowing water to evaporate quickly.

[0006] In order to achieve the above purpose, this application adopts the following technical solutions:

[0007] A high-temperature pyrolysis coal gas waste heat recovery device comprises a shell with a coil, a spray disk rotatably arranged in the shell, and a driving assembly arranged outside the shell and used to drive the spray disk to rotate, the coil comprises a disk body and a heat pipe fixedly connected to the disk body, the disk body is provided with an air inlet and an air outlet connected to the heat pipe; the heat pipe has a plurality of spiral portions, the spray disk has a plurality of spray pipes, the spiral portions and the spray pipes are arranged alternately, the axis of the spray disk is colinear with the spiral axis of the spiral portion, and the spray pipe has an upper atomizing spray port and a lower atomizing spray port.

[0008] Preferably, the end of the spray pipe away from the spray plate has an insertion portion, the plate body is provided with a supporting groove, and the insertion portion is located in the supporting groove.

[0009] Preferably, a rolling support sleeve is rotatably connected in the support groove, and the insertion portion is plug-in connected to the rolling support sleeve; the shell is also fixed with a plurality of support hooks, and one end of the spiral portion away from the coil is supported on the support hook.

[0010] Preferably, a bottom spray rack is further provided in the shell, and the bottom spray rack has a bottom atomizing spray port, and the opening of the bottom atomizing spray port faces the heat pipe.

[0011] Preferably, the bottom spray frame has a built-in water pump, a water suction port is provided at the lower portion of the bottom spray frame, an input end of the water pump is connected to the water suction port, and an output end of the water pump is connected to the bottom atomizing spray port.

[0012] Preferably, a fan is provided in the housing.

[0013] Preferably, the disk body is detachably connected to the shell, the shell is provided with a slot and a limiting slot connected to the slot, the disk body is fixed with a protrusion adapted to the slot, and the protrusion can enter the limiting slot.

[0014] Preferably, the tray body is also fixed with a handle.

[0015] Preferably, the driving assembly comprises a driving tooth fixedly arranged on the spray disc and a driving wheel rotatably arranged on the housing, wherein the driving tooth is meshed with the driving wheel. The housing has a built-in motor, and a driving end of the motor is fixedly connected to the driving wheel.

[0016] Preferably, a ball bearing is connected between the spray plate and the housing.

[0017] In summary, the utility model includes the following beneficial technical effects:

[0018] The driving component rotates the spray disk, so that the spray pipe can spray water evenly onto the heat pipe, and the upper atomizing spray port of the spray pipe can spray the lower half of the upper spiral part, and the lower atomizing spray port can spray the upper half of the lower spiral part, so that the water can be further evenly sprayed onto the heat pipe. With the blowing of the fan, the water sprayed on the spiral part can evaporate quickly and take away the heat, thereby realizing the recovery of waste heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the device.

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the device.

[0021] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0022] Figure 4 It is a schematic diagram of the exploded structure of the device.

[0023] Figure 5 It is a schematic diagram of the shell structure of the device.

[0024] Explanation of the reference numerals: 1. Shell; 11. Bottom spray rack; 12. Bottom atomizing spray port; 13. Water suction port; 14. Fan; 2. Coil; 21. Disk body; 211. Support groove; 212. Rolling support sleeve; 22. Heat pipe; 221. Spiral portion; 23. Air outlet; 24. Air inlet; 25. Support hook; 26. Slot; 27. Limiting groove; 28. Protrusion; 29. ​​Handle; 3. Spray disk; 31. Spray pipe; 32. Upper atomizing spray port; 33. Lower atomizing spray port; 34. Insertion portion; 4. Drive assembly; 41. Drive tooth; 42. Drive wheel; 43. Ball. DETAILED DESCRIPTION

[0025] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. They are relative concepts and may change accordingly according to their different positions and different usage states. Therefore, these or other directional terms should not be interpreted as restrictive terms. In addition, the terms "first", "second", "third", etc. or similar expressions are only used for description and distinction purposes, and cannot be understood as indicating or implying the relative importance of the corresponding components.

[0026] The following is combined with Figure 1 -Attached Figure 5 This application is described in further detail.

[0027] The embodiment of the present application discloses a high-temperature pyrolysis coal gas waste heat recovery device.

[0028] Reference Figure 1 and Figure 2 A high-temperature pyrolysis coal gas waste heat recovery device includes a shell 1, a coil 2, a spray disc 3 and a drive assembly 4. The coil 2 is detachably arranged on the shell 1, the spray disc 3 is rotatably connected to the shell 1, and the axis of rotation of the spray disc 3 is colinear with the axis of the coil 2. The drive assembly 4 is fixedly arranged on the surface of the shell 1 and can drive the spray disc 3 to rotate.

[0029] Reference Figure 1 and Figure 2The coil 2 includes a coil body 21 and a heat pipe 22. The coil body 21 has an air inlet 24 and an air outlet 23. Both ends of the heat pipe 22 are connected to the air inlet 24 and the air outlet 23 respectively. The gas after high-temperature pyrolysis enters the heat pipe 22 through the air inlet 24. The heat pipe 22 is located in the shell 1. The spray plate 3 can spray water to cool the heat pipe 22. The gas evaporated by the heat pipe 22 will be transported away from the top of the shell 1, so as to recover the waste heat of the steam. The cooled gas will go out from the air outlet 23 and go to the next process.

[0030] Reference Figure 1 and Figure 2 The heat pipe 22 has a plurality of spiral portions 221 . In the present application, there are three spiral portions 221 . The spiral axes of the three spiral portions 221 are the same. The gas after high-temperature pyrolysis will pass through the three spiral portions 221 at a time and come out from the gas outlet 23 .

[0031] Reference Figure 1 and Figure 2 The coil 2 is made detachable so that the spiral portion 221 can be easily taken out from the inside of the shell 1, so as to clean the surface or the inside of the spiral portion 221. After the coil 2 is disassembled, it is also convenient to clean the inside of the shell 1.

[0032] Reference Figure 1 and Figure 2 Specifically, the shell 1 is provided with a slot 26 and a limiting slot 27. The limiting slot 27 is located inside the shell 1. One side of the slot 26 is connected to the outside, and the other side of the slot 26 is connected to the limiting slot 27. The disk body 21 is fixed with a protrusion 28 that is adapted to the slot 26. When the protrusion 28 enters the limiting slot 27, the shell 1 is connected to the disk body 21.

[0033] Reference Figure 1 and Figure 2 The disc body 21 is also fixed with a handle 29. When the coil 2 needs to be removed, the handle 29 is grasped and the disc body 21 is rotated, and the protrusion 28 originally in the limiting groove 27 will move to the slot 26, and then the disc body 21 is pulled outward to remove the coil 2 from the shell 1.

[0034] Reference Figure 1 and Figure 2 Each protrusion 28, slot 26 and limit groove 27 is a set of disassembly units, and the present application has four sets of disassembly units. The four sets of disassembly units have a positioning effect.

[0035] Reference Figure 1 and Figure 2 A ball 43 is also connected between the spray plate 3 and the housing 1, so that the spray pipe 31 can be rotated relative to the housing 1 conveniently.

[0036] Reference Figure 1 and Figure 2The driving assembly 4 includes a driving tooth 41 and a driving wheel 42. The driving tooth 41 is fixedly arranged on the spray disc 3, and the driving wheel 42 is rotatably arranged on the housing 1. The driving tooth 41 and the driving wheel 42 are meshed with each other. The housing 1 is equipped with a motor, which is not shown in the figure. The motor is a prior art and can be directly purchased, so it is not described in detail. The driving end of the motor is fixedly connected to the driving wheel 42. The motor can drive the driving wheel 42 to rotate, and the driving wheel 42 can drive the spray disc 3 to rotate.

[0037] Reference Figure 3 and Figure 4 The spray plate 3 has multiple spray pipes 31. The spiral portion 221 and the spray pipes 31 are arranged alternately at intervals. The axis of the spray plate 3 is colinear with the spiral axis of the spiral portion 221. The spray pipe 31 has an upper atomizing spray port 32 and a lower atomizing spray port 33. The upper atomizing spray port 32 faces the upper spiral portion 221 and can spray the lower part of the upper spiral portion 221; the lower atomizing spray port 33 faces the lower spiral portion 221.

[0038] Reference Figure 3 and Figure 4 The end of the spray pipe 31 away from the spray plate 3 has an insertion portion 34, and the plate body 21 is provided with a support groove 211, which is annular, and a rolling support sleeve 212 is rotatably connected in the support groove 211, and the rolling support sleeve 212 is also annular, and the insertion portion 34 is plug-in connected with the rolling support sleeve 212. Thus, one end of the spray pipe 31 is supported by the plate body 21.

[0039] Reference Figure 3 and Figure 4 The housing 1 is also fixed with a plurality of support hooks 25 (such as Figure 5 ), the end of the spiral portion 221 away from the coil 2 is supported on the support hook 25, so that one end of the heat pipe 22 can be supported by the support hook 25.

[0040] Reference Figure 3 and Figure 4 Some of the water sprayed from the spray pipe 31 will be sprayed to the spiral portion 221, and some of the water that is not sprayed to the spiral portion 221 will be collected at the bottom of the chamber of the shell 1 over time.

[0041] Reference Figure 4 and Figure 5The bottom of the housing 1 chamber is also provided with a bottom spray rack 11, which has a bottom atomizing spray port 12, and the opening of the bottom atomizing spray port 12 faces the heat pipe 22. The bottom spray rack 11 has a water pump built in, and a water suction port 13 is provided at the lower part of the bottom spray rack 11. The input end of the water pump is connected to the water suction port 13, and the output end of the water pump is connected to the bottom atomizing spray port 12. The water collected at the bottom of the housing 1 chamber will enter the water suction port 13, and will come out from the bottom atomizing spray port 12 under the pumping of the water pump, and spray water to the bottom of the heat pipe 22 for heat dissipation.

[0042] Reference Figure 4 and Figure 5 A fan 14 is provided inside the housing 1 and directly below the spiral portion 221. The fan 14 blows toward the spiral portion 221 to increase the evaporation rate of the water on the surface of the spiral portion 221.

[0043] Reference Figure 4 and Figure 5 The water particles sprayed by the upper atomizing spray port 32, the spray port and the bottom atomizing spray port 12 of the present application are relatively fine. After being sprayed onto the spiral portion 221, the water can quickly absorb heat from the surface of the spiral portion 221 and evaporate, thereby taking away a large amount of heat.

[0044] The implementation principle of the embodiment is as follows: the coal gas after high-temperature pyrolysis will pass through the heat pipe 22, and the spray disk 3 will cool down the heat pipe 22. Under the action of the driving component 4, the spray disk 3 rotates to spray the heat pipe 22 evenly, and the air flow is increased under the action of the fan 14, so that the moisture on the spiral part 221 can be evaporated faster.

[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application; therefore, according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the above specific implementation modes and the accompanying drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction on the technical solution of the present invention. Therefore: All equivalent changes made according to the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A high-temperature pyrolysis coal gas waste heat recovery device, characterized in that: The invention comprises a shell (1) with a coil (2), a spray disc (3) rotatably arranged in the shell (1), and a driving assembly (4) arranged outside the shell (1) and used for driving the spray disc (3) to rotate. The coil (2) comprises a disc body (21) and a heat pipe (22) fixedly connected to the disc body (21). The disc body (21) is provided with an air inlet (24) and an air outlet (23) connected to the heat pipe (22). The heat pipe (22) has a plurality of spiral portions (221). The spray disc (3) has a plurality of spray pipes (31). The spiral portions (221) and the spray pipes (31) are arranged alternately. The axis of the spray disc (3) is colinear with the spiral axis of the spiral portion (221). The spray pipe (31) has an upper atomizing spray port (32) and a lower atomizing spray port (33).

2. A high-temperature pyrolysis coal gas waste heat recovery device as claimed in claim 1, characterized in that: The end of the spray pipe (31) away from the spray plate (3) has an insertion portion (34); the plate body (21) is provided with a support groove (211), and the insertion portion (34) is located in the support groove (211).

3. A high-temperature pyrolysis coal gas waste heat recovery device as claimed in claim 2, characterized in that: A rolling support sleeve (212) is rotatably connected in the support groove (211), and the insertion portion (34) is plug-in-connected to the rolling support sleeve (212); the housing (1) is also fixed with a plurality of support hooks (25), and one end of the spiral portion (221) away from the coil (2) is supported on the support hook (25).

4. A high-temperature pyrolysis coal gas waste heat recovery device as claimed in claim 1, characterized in that: A bottom spray frame (11) is also provided in the shell (1), and the bottom spray frame (11) has a bottom atomizing spray port (12), and the opening of the bottom atomizing spray port (12) faces the heat pipe (22).

5. A high-temperature pyrolysis coal gas waste heat recovery device as claimed in claim 4, characterized in that: The bottom spray frame (11) has a built-in water pump, and a water suction port (13) is provided at the bottom of the bottom spray frame (11). The input end of the water pump is connected to the water suction port (13), and the output end of the water pump is connected to the bottom atomizing spray port (12).

6. A high-temperature pyrolysis coal gas waste heat recovery device according to any one of claims 1 to 5, characterized in that: A fan (14) is arranged inside the housing (1).

7. A high-temperature pyrolysis coal gas waste heat recovery device according to any one of claims 1 to 5, characterized in that: The disk body (21) is detachably connected to the shell (1); the shell (1) is provided with a slot (26) and a limiting slot (27) connected to the slot (26); the disk body (21) is fixed with a protrusion (28) adapted to the slot (26); and the protrusion (28) can enter the limiting slot (27).

8. A high-temperature pyrolysis coal gas waste heat recovery device as claimed in claim 7, characterized in that: The tray body (21) is also fixed with a handle (29).

9. A high-temperature pyrolysis coal gas waste heat recovery device according to any one of claims 1 to 5, characterized in that: The driving assembly (4) comprises a driving tooth (41) fixedly arranged on the spray disc (3) and a driving wheel (42) rotatably arranged on the housing (1), the driving tooth (41) and the driving wheel (42) being meshed, the housing (1) having a built-in motor, the driving end of the motor being fixedly connected to the driving wheel (42).

10. A high-temperature pyrolysis coal gas waste heat recovery device as claimed in claim 9, characterized in that: A ball bearing (43) is also connected between the spray plate (3) and the housing (1).

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