Water cooling fan and cooling device for rotary kiln

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By setting a water cooling fan at the bottom of the rotary kiln, the water temperature of the water is used to reduce the temperature and improve the effect of the cold air gathering, which solves the problem of poor cooling effect of traditional electric fans, and significantly improves the cooling effect of the rotary kiln.

CN222415302UActive Publication Date: 2025-01-28HEBEI JINGLAN CEMENT CO LTD

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Patent Information

Application Number: CN202421097288.4
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-05-20
Publication Date: 2025-01-28
Estimated Expiration: 2034-05-20

AI Technical Summary

Technical Problem

In the prior art, traditional electric fans are used to cool the rotary kiln, and the cooling effect is poor, and the problem of local high temperature at the bottom of the rotary kiln barrel cannot be effectively solved.

Method used

Design a kind of water -cooled cooling fan. The fan is equipped with a fan and water -cooled tray. The temperature of the wind blowing from the wind turbine is reduced through the water -cold tray. Align to cool down the bottom of the kiln.

Benefits of technology

Through the design of water cooling cooling fans, the cooling effect of the rotary kiln is significantly improved, the temperature of the wind blowing into the switch kiln is reduced, and the problem of local high temperature at the bottom of the reckless kiln tube body is effectively solved.

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Abstract

The utility model relates to a water-cooling fan and a cooling device for a rotary kiln. The cooling device comprises a track and a plurality of water-cooling fans, wherein the track is laid below the rotary kiln in the axial direction of the rotary kiln, and the water-cooling fans are arranged on the track. The water-cooling fan comprises a rack and a cylindrical shell obliquely arranged on the rack, an air inlet is formed in the bottom of the cylindrical shell, an air outlet is formed in the top of the cylindrical shell, a fan and a water-cooling coil pipe are sequentially arranged in the cylindrical shell from bottom to top, a water inlet and a water outlet which are communicated with the water-cooling coil pipe are formed in the outer wall of the shell, and the water inlet and the water outlet are communicated with the water-cooling coil pipe. The water inlet and the water outlet are respectively communicated with a water storage tank through a pipeline, and a circulating pump is arranged on the pipeline; an air outlet of the water-cooling fan is aligned to the bottom of the rotary kiln, rail wheels are arranged at the bottom of the rack, and the water-cooling fan walks along the rail through the rail wheels. The rotary kiln solves the problem that the cooling effect is poor when a traditional electric fan is used for cooling the rotary kiln.

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Description

Technical Field

[0001] The utility model belongs to the field of cooling equipment, and in particular relates to a water-cooled cooling fan and a cooling and temperature reduction device for a rotary kiln. Background Art

[0002] When the rotary kiln is working, the temperature inside is usually 1450 degrees Celsius. Long-term operation at such a high temperature can easily cause the thermal insulation material at the bottom to fall off, resulting in excessively high local temperatures at the bottom of the rotary kiln cylinder, affecting the safe operation of the equipment. After the thermal insulation material falls off, the production is still in progress and the machine cannot be stopped in time for repairs. Therefore, when the thermal insulation material falls off locally, how to solve the local high temperature of the rotary kiln cylinder directly affects the safe operation of the rotary kiln.

[0003] To solve the problem of local high temperature at the bottom of the rotary kiln cylinder, the method currently used is to set up a stand on one side below the rotary kiln, place several electric fans on the stand, and blow air to the high-temperature parts of the rotary kiln cylinder to cool it down. However, since the rotary kiln is extremely high, although thermal insulation materials are installed, some heat will still be radiated into the surrounding air, and the heat generated by the auxiliary heat will increase the temperature of the surrounding air. Therefore, even if a fan is installed, it will blow warm air, and the cooling effect is poor. Utility Model Content

[0004] The utility model aims to overcome the defect of poor cooling effect of using a traditional electric fan to cool a rotary kiln in the prior art, and provides a water-cooled cooling fan and a cooling device for a rotary kiln.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A water-cooled cooling fan comprises a frame and a cylindrical shell obliquely arranged on the frame, an air inlet is arranged at the bottom of the cylindrical shell, and an air outlet is arranged at the top, a fan and a water-cooling coil are arranged in sequence from bottom to top in the cylindrical shell, a water inlet and a water outlet connected to the water-cooling coil are arranged on the outer wall of the shell, the water inlet and the water outlet are connected to a water storage tank through pipes respectively, and a circulating pump is arranged on the pipe.

[0007] As a further technical solution, sound insulation cotton is arranged in the cylindrical shell, and the sound insulation cotton is arranged below the fan.

[0008] As a further technical solution, the sound insulation cotton includes disc-shaped sound insulation cotton and annular sound insulation cotton integrally connected to the disc-shaped sound insulation cotton, and the annular sound insulation cotton is arranged on a side of the disc-shaped sound insulation cotton away from the fan.

[0009] As a further technical solution, the length of the cylindrical shell is 2.0-2.5 meters, and the inclination angle of the cylindrical shell is 40-50 degrees.

[0010] As a further technical solution, the cylindrical shell is rotatably arranged on the frame via a first pin, and a fixing plate is rotatably arranged on the frame via a second pin, and the fixing plate is connected to the frame via bolts.

[0011] As a further technical solution, the frame is provided with a strip hole, the fixing plate is provided with a circular through hole, and a nut is provided after the screw rod of the bolt passes through the circular through hole and the strip hole.

[0012] As a further technical solution, the top outer wall of the cylindrical shell is folded inwards, so that the air outlet is square.

[0013] As a further technical solution, the fan includes a mounting frame fixedly arranged in a cylindrical shell, a fan shaft rotatably arranged on the mounting frame, fan blades arranged on the fan shaft, and a motor driving the fan shaft to rotate, and the rotating output shaft of the motor is fixedly connected to the fan shaft.

[0014] A cooling device for a rotary kiln comprises a track laid below the rotary kiln along the axial direction of the rotary kiln, a plurality of water-cooled cooling fans arranged on the track, the air outlets of the water-cooled cooling fans being aligned with the bottom of the rotary kiln, track wheels being arranged at the bottom of the water-cooled cooling fans, and the water-cooled cooling fans moving along the track via the track wheels.

[0015] As a further technical solution, a plurality of sockets are provided on the track, and limit pins for limiting the movement of the water-cooled cooling fan are respectively provided on both sides of the frame on the track, and the limit pins are inserted into the corresponding sockets.

[0016] As a further technical solution, a shock-absorbing pad is further arranged between the frame and the track wheel.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model arranges a fan in a cylindrical shell, and arranges a water cooling coil on an air outlet channel on the cylindrical shell, and cools the wind by water cooling, thereby reducing the temperature of the wind blown onto the rotary kiln, thereby improving the cooling effect of the rotary kiln. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a water-cooled cooling fan in one embodiment of the utility model;

[0020] Figure 2A cross-sectional view of a water-cooled cooling fan in one embodiment of the utility model;

[0021] Figure 3 This is a schematic structural diagram of a rotary kiln cooling device in one embodiment of the utility model;

[0022] In the figure: 1. frame, 2. cylindrical shell, 3. air inlet, 4. air outlet, 5. fan, 6. water-cooled coil, 7. water inlet, 8. water outlet, 9. water storage tank, 10. circulation pump, 11. sound insulation cotton, 12. disc-shaped sound insulation cotton, 13. ring-shaped sound insulation cotton, 14. pin shaft 1, 15. fixing plate, 16. strip hole, 17. screw, 18. nut, 19. mounting frame, 20. fan shaft, 21. fan blade, 22. motor, 23. rotary kiln, 24. track, 25. track wheel, 26. socket, 27. limit pin, 28. shock pad, 29. travel motor. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The present invention will be described in further detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] like Figure 1-3 An embodiment of a cooling and temperature reduction device for a rotary kiln of the utility model shown in the figure comprises a track 24 axially laid below the rotary kiln 23 along the rotary kiln 23, and a plurality of water-cooled cooling fans arranged on the track 24; the water-cooled cooling fan comprises a frame 1, a cylindrical shell 2 obliquely arranged on the frame 1, an air inlet 3 is arranged at the bottom of the cylindrical shell 2, and an air outlet 4 is arranged at the top, a fan 5 and a water-cooled coil 6 are arranged in sequence from bottom to top in the cylindrical shell 2, a water inlet 7 and a water outlet 8 connected to the water-cooled coil 6 are arranged on the outer wall of the shell, the water inlet 7 and the water outlet 8 are respectively connected to a water storage tank 9 through pipelines, and a circulating pump 10 is arranged on the pipeline; the air outlet 4 of the water-cooled cooling fan is aligned with the bottom of the rotary kiln 23, a track wheel 25 is arranged at the bottom of the frame 1, and the water-cooled cooling fan moves along the track 24 through the track wheel 25. The utility model arranges a fan in a cylindrical shell, and arranges a water cooling coil on an air outlet channel on the cylindrical shell, and cools the wind by water cooling, thereby reducing the temperature of the wind blown onto the rotary kiln, thereby improving the cooling effect of the rotary kiln.

[0029] As an embodiment of the cooling device for a rotary kiln of the utility model, the track 24 is arranged on one side of the rotary kiln 23 .

[0030] As an embodiment of the cooling device for a rotary kiln of the utility model, sound insulation cotton 11 is arranged in the cylindrical shell 2 , and the sound insulation cotton 11 is arranged below the fan 5 .

[0031] As an embodiment of a cooling and temperature reduction device for a rotary kiln of the utility model, the sound insulation cotton 11 includes a disc-shaped sound insulation cotton 12 and an annular sound insulation cotton 13 integrally connected to the disc-shaped sound insulation cotton 12, and the annular sound insulation cotton 13 is arranged on the side of the disc-shaped sound insulation cotton 12 away from the fan 5.

[0032] As an embodiment of the cooling device for a rotary kiln of the utility model, the length of the cylindrical shell 2 is 2.0-2.5 meters. The 2.0-2.5-meter cylindrical shell adopted by the utility model prolongs the blowing channel of the cold air, makes the blown air more concentrated, and can act on the rotary kiln cylinder in a nearly straight line. Compared with the traditional electric fan, it reduces the range of the wind diffusion to the periphery and improves the utilization rate of the cold air.

[0033] As an embodiment of the cooling device for a rotary kiln of the utility model, the inclination angle of the cylindrical shell 2 is 40-50 degrees.

[0034] As an embodiment of the cooling device for a rotary kiln of the utility model, the cylindrical shell 2 is rotatably arranged on the frame 1 through a pin 14, and a fixing plate 15 is rotatably arranged on the frame 1 through a pin 2, and the fixing plate 15 is connected to the frame 1 through bolts.

[0035] As an embodiment of the cooling device for a rotary kiln of the utility model, the frame 1 is provided with a strip hole 16, the fixing plate 15 is provided with a circular through hole, and the screw rod 17 of the bolt is provided with a nut 18 after passing through the circular through hole and the strip hole 16, so as to facilitate the angle adjustment of the cylindrical shell 2.

[0036] As an embodiment of the cooling device for a rotary kiln of the utility model, the top outer wall of the cylindrical shell 2 is folded inwards, so that the air outlet 4 is square.

[0037] As an embodiment of a cooling and temperature reduction device for a rotary kiln of the utility model, the fan 5 includes a mounting frame 19 fixedly arranged in a cylindrical shell 2, a fan shaft 20 rotatably arranged on the mounting frame, fan blades 21 arranged on the fan shaft 20, and a motor 22 for driving the fan shaft 20 to rotate, and the rotating output shaft of the motor 22 is fixedly connected to the fan shaft 20.

[0038] As an embodiment of the cooling device for a rotary kiln of the utility model, a travel motor 29 for driving the water-cooled cooling fan to travel on the track 24 is also provided at the bottom of the frame 1, and the rotating output shaft of the travel motor 29 is transmission-connected to the track wheel 25.

[0039] As an embodiment of the cooling device for a rotary kiln of the utility model, a shock-absorbing pad 28 is further provided between the frame 1 and the track wheel 25 to solve the problem of excessive vibration caused by resonance between the fan 5 and the frame 1 when the fan 5 is running.

[0040] As an embodiment of a cooling device for a rotary kiln of the utility model, a plurality of sockets 26 are provided on the track 24, and limit pins 27 for limiting the movement of the water-cooled cooling fan are respectively provided on both sides of the frame 1 on the track 24, and the limit pins 27 are inserted into the corresponding sockets 26.

[0041] The method of use of the utility model:

[0042] When the utility model is used, the travel motor 29 is started, the position of the water-cooled cooling fan is adjusted so that the air outlet 4 is aligned with the local high-temperature area at the bottom of the rotary kiln 23, and then the travel motor 29 is turned off, the limit latch 27 is inserted, and then the fan 5 and the circulation pump 10 are turned on, so that cold air can be blown toward the bottom of the rotary kiln 23 to dissipate heat, thereby avoiding the safety risk caused by the excessive local temperature of the rotary kiln 23 due to the shedding of the heat insulation material.

[0043] The above-mentioned embodiments are only preferred embodiments of the present invention, and are not exhaustive of the feasible implementations of the present invention. For those skilled in the art, any obvious changes made to the present invention without departing from the principle and spirit of the present invention should be considered to be included in the scope of protection of the claims of the present invention.

Claims

1. A water-cooled cooling fan, characterized in that: The invention comprises a frame (1), a cylindrical shell (2) obliquely arranged on the frame (1), an air inlet (3) being arranged at the bottom of the cylindrical shell (2), and an air outlet (4) being arranged at the top, a fan (5) and a water cooling coil (6) being arranged in sequence from bottom to top in the cylindrical shell (2), a water inlet (7) and a water outlet (8) being arranged on the outer wall of the shell and being connected to the water cooling coil (6), the water inlet (7) and the water outlet (8) being connected to a water storage tank (9) via pipelines, and a circulating pump (10) being arranged on the pipelines.

2. A water-cooled cooling fan according to claim 1, characterized in that: Sound insulation cotton (11) is arranged in the cylindrical shell (2), and the sound insulation cotton (11) is arranged below the fan (5).

3. The water-cooled cooling fan according to claim 2, characterized in that: The sound insulation cotton (11) comprises disc-shaped sound insulation cotton (12) and annular sound insulation cotton (13) integrally connected to the disc-shaped sound insulation cotton (12), wherein the annular sound insulation cotton (13) is arranged on a side of the disc-shaped sound insulation cotton (12) away from the fan (5).

4. The water-cooled cooling fan according to claim 1, characterized in that: The length of the cylindrical shell (2) is 2.0-2.5 meters, and the inclination angle of the cylindrical shell (2) is 40-50 degrees.

5. The water-cooled cooling fan according to claim 1, characterized in that: The cylindrical shell (2) is rotatably mounted on the frame (1) via a first pin (14); a fixing plate (15) is rotatably mounted on the frame (1) via a second pin; the fixing plate (15) is connected to the frame (1) via bolts.

6. The water-cooled cooling fan according to claim 1, characterized in that: The top outer wall of the cylindrical shell (2) is folded inwards, so that the air outlet (4) is square.

7. The water-cooled cooling fan according to claim 1, characterized in that: The fan (5) comprises a mounting frame (19) fixedly arranged in a cylindrical housing (2), a fan shaft (20) rotatably arranged on the mounting frame, fan blades (21) arranged on the fan shaft (20), and a motor (22) driving the fan shaft (20) to rotate, wherein a rotation output shaft of the motor (22) is fixedly connected to the fan shaft (20).

8. A cooling device for a rotary kiln, characterized in that: The invention comprises a track (24) which is laid axially along the rotary kiln (23) and below the rotary kiln (23); a plurality of water-cooled cooling fans as described in any one of claims 1 to 7 are arranged on the track (24); an air outlet (4) of the water-cooled cooling fan is aligned with the bottom of the rotary kiln (23); a track wheel (25) is arranged at the bottom of the water-cooled cooling fan; and the water-cooled cooling fan moves along the track (24) via the track wheel (25).

9. A cooling device for a rotary kiln according to claim 8, characterized in that: The track (24) is provided with a plurality of insertion holes (26), and the track (24) is provided with limit pins (27) on both sides of the frame (1) for limiting the movement of the water-cooled cooling fan, and the limit pins (27) are inserted into corresponding insertion holes (26).

10. A cooling device for a rotary kiln according to claim 8, characterized in that: A shock-absorbing pad (28) is also provided between the frame (1) and the track wheel (25).