CN209761799U

CN209761799U - High-temperature fan for steel mill

Info

Publication number: CN209761799U
Application number: CN201920516478.8U
Authority: CN
Inventors: 黄婧; 蒋宁波; 金丽萍
Original assignee: Shaoxing Shangyu Jintai Blower Co Ltd
Current assignee: Shaoxing Shangyu Jintai Blower Co Ltd
Priority date: 2019-04-17
Filing date: 2019-04-17
Publication date: 2019-12-10
Anticipated expiration: 2029-04-17

Abstract

The utility model relates to an auxiliary device technical field is used in the steel mill, and discloses a high temperature fan is used in steel mill, including the drum seat, first screw hole has been seted up at the top of drum seat, sunken chamber has been seted up at the top of drum seat, the second screw hole has been seted up in the front in sunken chamber, the top movable mounting in sunken chamber has the motor, the side threaded connection of motor has first bolt, the bottom of first bolt run through the curb plate of motor and with second screw hole threaded connection. This high temperature fan for steel mill can isolate the inner chamber of drum seat with the external world through O shape sealing ring, prevents that coolant from flowing out, makes coolant at drum seat internal circulation through coolant entry and coolant export, and then takes away the heat that high temperature furnace passed through the impeller transmission for the transmission shaft, prevents that the transmission shaft from giving the motor with the heat, and then makes motor operation trouble reduce the life-span of motor operation.

Description

High-temperature fan for steel mill

Technical Field

The utility model relates to a steel mill specifically is a steel mill uses high temperature fan with auxiliary device technical field.

Background

The heated air circulation fan used in the high-temperature furnace of the steel mill needs to stably operate at high temperature, so that heated air in the furnace circulates and uniformly flows to heat, certain pressure and enough air quantity are needed for heating, the high-temperature circulation fan is suitable for the industrial furnace with high working temperature and is specially used for the heated air circulation in the high-temperature furnace of the steel mill, and the balance and exchange of heated air in the furnace and the circulation of the heated air in the furnace are realized.

Because the operating temperature in the high temperature furnace is high, the requirement on the cooling effect of the high temperature fan is higher, the high temperature is prevented from being transmitted to the motor through the impeller and the transmission shaft, the temperature of the motor is increased, the service life of the motor is further influenced, meanwhile, the high temperature fan cannot perform corresponding air volume adjustment according to the temperature in the high temperature furnace in the working process, and the purposes of energy conservation and temperature control cannot be achieved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a high temperature fan for steel mill possesses that the fan cooling effect is good, and the efficient operation can be stabilized to the motor, and the amount of wind of fan can be adjusted automatically's advantage, has solved the problem of mentioning in the above background art.

The utility model provides a following technical scheme: a high-temperature fan for a steel mill comprises a cylinder seat, wherein a first threaded hole is formed in the top of the cylinder seat, a recessed cavity is formed in the top of the cylinder seat, a second threaded hole is formed in the front of the recessed cavity, a motor is movably mounted at the top of the recessed cavity, a first bolt is in threaded connection with the side face of the motor, the bottom of the first bolt penetrates through a side plate of the motor and is in threaded connection with the second threaded hole, a speed regulating device is fixedly mounted on the front of the motor, an output end of the motor penetrates through the recessed cavity and extends to the inner cavity of the cylinder seat and is fixedly connected with a transmission shaft, a stirring blade is fixedly mounted on the outer surface of the transmission shaft, an O-shaped sealing ring is fixedly sleeved at the bottom of the cylinder seat, an impeller is fixedly mounted at the bottom of the transmission shaft, an insulating layer is coated on the, the bottom fixed mounting of cylinder seat inner chamber has temperature sensor, temperature sensor's response end runs through the cylinder seat and extends to the bottom of cylinder seat, the fixed intercommunication of the right flank of cylinder seat has the coolant export, the fixed intercommunication of the left surface of cylinder seat has the coolant entry.

Preferably, the temperature sensor is a high-temperature thermal resistance temperature sensor, and the temperature sensor is electrically connected with the speed regulating device.

Preferably, the heat insulation layer is a nanometer heat insulation plate, and the O-shaped sealing ring is a graphite packing sealing ring.

Preferably, the side surface of the motor is fixedly provided with two hanging rings, and the number of the hanging rings is two.

Preferably, the impeller is a centrifugal impeller.

Preferably, the cooling medium inlet and the cooling medium outlet are both fixedly communicated with an air duct, and the air duct is filled with cooling nitrogen.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this high temperature fan for steel mill can isolate the inner chamber of drum seat with the external world through O shape sealing ring, prevents that coolant from flowing out, makes coolant at drum seat internal circulation through coolant entry and coolant export, and then takes away the heat that high temperature furnace passed through the impeller transmission for the transmission shaft, prevents that the transmission shaft from giving the motor with the heat, and then makes motor operation trouble reduce the life-span of motor operation.

2. This high temperature fan for steel mill can make coolant flow at the drum seat inner chamber fast through stirring the blade, and then makes coolant take away a large amount of heat fast, detects the temperature in the high temperature furnace through temperature sensor, and then makes the rotational speed of speed adjusting device automatic control motor, and then makes this high temperature fan's energy-conserving controllable temperature effect better, prevents through the insulating layer that the outer wall of high temperature through the drum seat from transmitting the inside of drum seat, and then prevents that coolant cooling effect is good enough.

Drawings

FIG. 1 is a sectional view of the present invention;

FIG. 2 is a schematic view of the cylindrical seat of the present invention;

Fig. 3 is a schematic view of the impeller of the present invention.

In the figure: 1. a cylindrical seat; 2. a cooling medium outlet; 3. a first threaded hole; 4. a speed regulating device; 5. a motor; 6. a first bolt; 7. a cooling medium inlet; 8. shifting the blades; 9. a drive shaft; 10. an O-ring seal; 11. a second threaded hole; 12. an impeller; 13. a thermal insulation layer; 14. a temperature sensor; 15. a recessed cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The embodiment of the utility model provides an in the attached drawing: the different types of hatching in the figures are not given the national standards, do not require the material of the elements, and distinguish between cross-sectional views of the elements in the figures.

Referring to fig. 1-3, a high temperature fan for steel mills comprises a cylinder base 1, a first threaded hole 3 is formed at the top of the cylinder base 1, a recessed cavity 15 is formed at the top of the cylinder base 1, a second threaded hole 11 is formed in the front of the recessed cavity 15, a motor 5 is movably mounted at the top of the recessed cavity 15, a rubber gasket is fixedly bonded between the recessed cavity 15 and the motor 5 to prevent a cooling medium from leaking, two rings are fixedly mounted at the side of the motor 5, a first bolt 6 is in threaded connection with the side of the motor 5, the bottom of the first bolt 6 penetrates through the side plate of the motor 5 and is in threaded connection with the second threaded hole 11, a speed adjusting device 4 is fixedly mounted at the front of the motor 5, the output end of the motor 5 penetrates through the recessed cavity 15 and extends to the inner cavity of the cylinder base 1 and is fixedly connected with a transmission shaft 9, a toggle blade 8 is fixedly, the cooling medium can flow in the inner cavity of the cylinder seat 1 quickly by pulling the blade 8, so that the cooling medium takes away a large amount of heat quickly, the bottom of the cylinder seat 1 is fixedly sleeved with an O-shaped sealing ring 10, the O-shaped sealing ring 10 is a graphite packing sealing ring which is suitable for dynamic sealing under the conditions of high temperature and high pressure, so as to ensure the sealing effect of the inner cavity of the cylinder seat 1, the inner cavity of the cylinder seat can be isolated from the outside through the O-shaped sealing ring to prevent the cooling medium from flowing out, the bottom of the transmission shaft 9 penetrates through the O-shaped sealing ring 10 and extends to the bottom of the cylinder seat 1 and is fixedly provided with an impeller 12, the impeller 12 is a centrifugal impeller, the outer surface of the cylinder seat 1 is coated with a heat insulation layer 13, the heat insulation layer 13 is a nano heat insulation board, and the high temperature is prevented from being transmitted, and then prevent the cooling medium cooling effect from not being good enough, the bottom of the cavity of the cylinder seat 1 is fixedly provided with a temperature sensor 14, the temperature sensor 14 is a high-temperature thermal resistance temperature sensor, the temperature sensor 14 is electrically connected with the speed regulating device 4, the temperature in the high-temperature furnace is detected by the temperature sensor 14, and further the speed regulating device 4 automatically controls the rotating speed of the motor 5, so that the energy-saving and temperature-controllable effect of the high-temperature fan is better, the sensing end of the temperature sensor 14 penetrates through the cylinder seat 1 and extends to the bottom of the cylinder seat 1, the right side surface of the cylinder seat 1 is fixedly communicated with a cooling medium outlet 2, the left side surface of the cylinder seat 1 is fixedly communicated with a cooling medium inlet 7, the cooling medium inlet 7 and the cooling medium outlet 2 are both fixedly communicated with an air duct, and the air duct is filled with cooling nitrogen, the cooling medium circulates in the cylinder seat 1 through the cooling medium inlet 7 and, and then take away the heat that high temperature furnace passed through impeller 12 and transmitted transmission shaft 9, prevent that transmission shaft 9 from transmitting the heat to motor 5, and then make motor 5 operation trouble reduce the operating life of motor 5.

the theory of operation, cooling medium gets into the inner chamber of drum seat 1 from cooling medium entry 7, the output of motor 5 rotates and makes transmission shaft 9 rotate, transmission shaft 9 drives and stirs blade 8 and rotates, make cooling medium flow at the inner chamber of drum seat 1 fast, simultaneously take away the heat on the transmission shaft 9, the cooling medium that has the temperature flows from cooling medium export 2, can be to speed adjusting device 4 signals when temperature sensor 14 senses the temperature in the high temperature furnace and is higher than the setting value, speed adjusting device 4 can control motor 5 and accelerate the slew velocity, and then make the temperature in the high temperature furnace obtain control, and stir blade 8's rotational speed increase, make cooling medium's velocity of flow increase, and then make the temperature of transmission shaft 9 can keep in controllable range.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Also in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the equipment or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high temperature fan for steel mill, includes cylinder seat (1), its characterized in that: the cylinder seat is characterized in that a first threaded hole (3) is formed in the top of the cylinder seat (1), a sunken cavity (15) is formed in the top of the cylinder seat (1), a second threaded hole (11) is formed in the front of the sunken cavity (15), a motor (5) is movably mounted at the top of the sunken cavity (15), a first bolt (6) is in threaded connection with the side surface of the motor (5), the bottom of the first bolt (6) penetrates through a side plate of the motor (5) and is in threaded connection with the second threaded hole (11), a speed regulating device (4) is fixedly mounted at the front of the motor (5), an output end of the motor (5) penetrates through the sunken cavity (15) and extends to an inner cavity of the cylinder seat (1) and is fixedly connected with a transmission shaft (9), a stirring blade (8) is fixedly mounted on the outer surface of the transmission shaft (9), and an O-shaped sealing ring (10) is, the bottom of transmission shaft (9) runs through O shape sealing ring (10) and extends to the bottom and fixed mounting of drum seat (1) have impeller (12), the surface cladding of drum seat (1) has insulating layer (13), the bottom fixed mounting of drum seat (1) inner chamber has temperature sensor (14), the response end of temperature sensor (14) runs through drum seat (1) and extends to the bottom of drum seat (1), the fixed intercommunication of right flank of drum seat (1) has coolant outlet (2), the fixed intercommunication of left surface of drum seat (1) has coolant entry (7).

2. The high temperature fan for steel mill according to claim 1, characterized in that: the temperature sensor (14) is a high-temperature thermal resistance temperature sensor, and the temperature sensor (14) is electrically connected with the speed regulating device (4).

3. The high temperature fan for steel mill according to claim 1, characterized in that: the heat insulation layer (13) is a nanometer heat insulation plate, and the O-shaped sealing ring (10) is a graphite packing sealing ring.

4. The high temperature fan for steel mill according to claim 1, characterized in that: the side face of the motor (5) is fixedly provided with two lifting rings, and the number of the lifting rings is two.

5. The high temperature fan for steel mill according to claim 1, characterized in that: the impeller (12) is a centrifugal impeller.

6. The high temperature fan for steel mill according to claim 1, characterized in that: the cooling medium inlet (7) and the cooling medium outlet (2) are fixedly communicated with an air duct, and cooling nitrogen is filled in the air duct.