CN215560589U

CN215560589U - Hot galvanizing annealing furnace

Info

Publication number: CN215560589U
Application number: CN202122126671.0U
Authority: CN
Inventors: 程国陆
Original assignee: Zhejiang Hangfeng Tower Co ltd
Current assignee: Zhejiang Hangfeng Tower Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-01-18
Anticipated expiration: 2031-09-02

Abstract

The utility model relates to a hot-galvanize annealing stove, the technical field who relates to annealing stove, the induction cooker comprises a cooker bod, the cooling cavity has been seted up in the furnace body, be provided with cooling device in the cooling cavity, be provided with first baffle and second baffle in the cooling cavity, first baffle and second baffle separate the cooling cavity for first cooling chamber, second cooling chamber and third cooling chamber, cooling device includes the first cooling module that the cooling effect scales up gradually, second cooling module and third cooling module, first cooling module includes the fan, fan fixed mounting is on one side lateral wall of first cooling chamber. This application is through being divided into first cooling chamber, second cooling chamber and third cooling chamber with the cooling chamber, and the cooling effect of three cooling chamber progressively increases gradually to can reduce the possibility that belted steel quenching emergence performance changes.

Description

Hot galvanizing annealing furnace

Technical Field

The application relates to the field of annealing furnaces, in particular to a hot galvanizing annealing furnace.

Background

The annealing furnace is a common device used when metal is annealed, and after the strip steel is annealed, the hardness of the strip steel can be reduced, the residual stress can be eliminated, the physical property of the strip steel can be improved, the crystal grains can be refined, and the tissue defect can be eliminated. Therefore, when the hot galvanizing treatment is carried out on the strip steel, the quality of the annealing furnace directly influences the quality of the finished product of the hot galvanizing process of the strip steel.

The utility model discloses a quick cooling device for cold-rolled strip steel continuous annealing stove in chinese utility model patent with grant publication number CN206721289U, it includes preceding conveying roller and back conveying roller, sets up cooling tube between preceding conveying roller and the back conveying roller. The strip steel penetrates through the cooling pipeline, the cooling box is arranged on the outer side face of the cooling pipeline, the air nozzle is arranged on the inner side face of the cooling pipeline, the air blower is arranged on the cooling box, the air blower is provided with an input air pipe, the rear end face of the cooling box is connected with an output air pipe, and the output port of the output air pipe is communicated with the cooling pipeline.

When the strip steel passes through the cooling pipeline, the air blower sucks external air into the input air pipe, the external air enters the cooling box through the input air pipe, cooling liquid is arranged in the cooling box, the external air is cooled and is sprayed to the surface of the strip steel from the output air pipe, and therefore the strip steel is cooled.

In view of the above-mentioned related arts, the inventors believe that the cooling gas directly cools the surface of the strip steel, which easily causes rapid cooling of the high-temperature strip steel, leading to the deterioration of the performance thereof, and even the occurrence of strip breakage.

SUMMERY OF THE UTILITY MODEL

In order to reduce the possibility of performance change caused by quenching of strip steel, the application provides a hot galvanizing annealing furnace.

The hot galvanizing annealing furnace adopts the following technical scheme:

a hot galvanizing annealing furnace comprises a furnace body, a heat energy radiation chamber and a cooling chamber are arranged in the furnace body, cooling devices are arranged at the top and the bottom of the cooling chamber, a first partition plate and a second partition plate are arranged in the cooling chamber, a first opening for strip steel to pass through is formed in the first partition plate, a second opening for strip steel to pass through is formed in the second partition plate, the cooling chamber is divided into a first cooling chamber, a second cooling chamber and a third cooling chamber by the first partition plate and the second partition plate along the transmission direction of the strip steel, the cooling devices comprise a first cooling assembly for cooling the strip steel by adopting natural air, a second cooling assembly for cooling the strip steel by adopting normal temperature water and a third cooling assembly for cooling the strip steel by adopting cooling air, the first cooling assembly is arranged on the first cooling chamber, the second cooling assembly is arranged on the second cooling chamber, the third cooling assembly is arranged on the third cooling chamber, the first cooling assembly comprises a fan arranged outside the first cooling chamber, an air inlet is formed in the side wall of the first cooling chamber, and an air outlet of the fan is communicated with the air inlet.

Through adopting above-mentioned technical scheme, first baffle and second baffle are separated the cooling chamber for three cooling chamber, and the cooling effect of cooling unit progressively increases progressively in the three cooling chamber to make belted steel can carry out gradual cooling in three cooling chamber, reduced belted steel and caused the possibility of performance change at the cooling chamber internal shock cooling.

Optionally, the second cooling assembly comprises a connecting pipe, a water storage tank arranged outside the second cooling chamber and a spray head arranged in the second cooling chamber, one end of the connecting pipe is communicated with the water storage tank, the other end of the connecting pipe penetrates through the side wall of one side of the second cooling chamber and is communicated with the spray head, and a water pump is arranged on the connecting pipe.

By adopting the technical scheme, the water pump is started, and the strip steel can be cooled in the second cooling chamber in a water-cooling mode. The arrangement of the water pump and the spray head is convenient to install, low in cost and easy to operate.

Optionally, two interlayer plates are sequentially arranged in the third cooling chamber along the height direction of the third cooling chamber, the two interlayer plates divide the third cooling chamber into two cooling liquid storage cavities positioned at the upper side and the lower side of the third cooling chamber and a cooling cavity positioned between the two interlayer plates, the cooling liquid storage cavity is internally provided with cooling liquid, the third cooling component comprises a vacuum pump, a cooling air pipe, a moving strip and a plurality of nozzles facing the strip steel, the vacuum pump is arranged outside the third cooling chamber, one end of the cooling air pipe is connected with the air outlet end of the vacuum pump, the other end of the cooling air pipe is connected with a moving strip which is arranged on the inner side wall of the cooling cavity along the transmission direction of the strip steel, the movable strip is internally provided with a cavity, the cooling air pipe is communicated with the cavity, the nozzles are arranged on the movable strip, and the nozzles are communicated with the cavity.

By adopting the technical scheme, the vacuum pump is started, the outside air can be pumped into the cooling air pipe, then the air is cooled by the cooling liquid in the cooling liquid storage cavity along with the cooling air pipe, enters the cavity of the movable strip, and is finally sprayed to the strip steel from the nozzle, so that the strip steel is cooled in the last step. The strip steel is cooled by the condensed air, the cooling effect is obvious, and the operation is simple.

Optionally, be provided with the direction subassembly on the first cooling chamber, the direction subassembly includes a plurality of guide rolls that are used for driving belted steel and a plurality of first motor that are used for driving guide roll pivoted, and is a plurality of the guide roll sets up in first cooling chamber in a staggered manner, first motor sets up outside first cooling chamber, the output shaft of first motor passes the lateral wall of first cooling chamber and links to each other with the guide roll is fixed.

Through adopting above-mentioned technical scheme, the setting of direction subassembly can prolong belted steel in the time of passing through of first cooling chamber to can make belted steel can fully dispel the heat, improve the cooling effect of first cooling chamber.

Optionally, a first sliding groove is formed in the side wall of one side of the cooling cavity in the height direction of the cooling cavity, a second sliding groove is formed in the side wall of the other side of the cooling cavity in the height direction of the cooling cavity, two ends of the moving strip are arranged in the first sliding groove and the second sliding groove in a sliding mode respectively, a lifting assembly used for adjusting the height of the moving strip is arranged in the third cooling chamber, and the moving strip is connected with the lifting assembly.

Through adopting above-mentioned technical scheme, lifting unit's setting for the height of removing the strip can be adjusted, thereby can control the cooling effect of third cooling module to belted steel through the distance between control nozzle and the belted steel, has improved third cooling module's suitability.

Optionally, the lifting assembly comprises a first lead screw, a second lead screw and a driving piece, one end of the first lead screw is rotatably arranged on one end wall of the first sliding groove, the other end of the first lead screw penetrates through the end wall of the other end of the first sliding groove and is connected with the driving piece, the first lead screw is in threaded connection with one end of the movable strip, one end of the second lead screw is rotatably arranged on one end wall of the second sliding groove, the other end of the second lead screw penetrates through the end wall of the second sliding groove and is connected with the driving piece, and the second lead screw is in threaded connection with one end of the movable strip far away from the first lead screw.

By adopting the technical scheme, when the height of the moving strip needs to be adjusted, the driving piece is started, the driving piece drives the first screw rod and the second screw rod to rotate, and the first screw rod and the second screw rod drive the moving strip to slide in the first sliding groove and the second sliding groove. The screw rod is simple to install and low in cost.

Optionally, the driving member is disposed outside the third cooling chamber, and the driving member includes a second motor, a first bevel gear, a second bevel gear, a third bevel gear, a fourth bevel gear, and a transmission rod, the second motor is arranged outside the third cooling chamber, the output shaft of the second motor is in key connection with the first bevel gear, the second bevel gear is meshed with the first bevel gear, one end of the first screw rod passes through the end wall of the first sliding groove and is connected with the second bevel gear in a key way, the third bevel gear is arranged on one side of the third cooling chamber far away from the first bevel gear, one end of the second screw rod passes through the end wall of the second sliding groove and is connected with the third bevel gear in a key way, the fourth bevel gear is meshed with the third bevel gear, the transmission rod is arranged between the first bevel gear and the third bevel gear, one end of the transmission rod is in key connection with the first bevel gear, and the other end of the transmission rod is in key connection with the third bevel gear.

By adopting the technical scheme, the second motor is started, the second motor drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear and the transmission rod to rotate, and the second bevel gear drives the first screw rod to rotate; the transmission rod drives the fourth bevel gear to rotate, the fourth bevel gear drives the third bevel gear to rotate, and the third bevel gear drives the second screw rod to rotate. The driving piece and the transmission rod are arranged, so that the first screw rod and the second screw rod can be controlled to rotate together only by installing one second motor, the service efficiency of the second motor is improved, and the cost is saved.

Optionally, it is provided with initiative compression roller and driven compression roller to rotate in the first cooling chamber, initiative compression roller and driven compression roller all are located first cooling chamber and are close to first open-ended one side, leave the clearance that supplies the band steel to pass through between initiative compression roller and the driven compression roller, be provided with the third motor outside the first cooling chamber, the output shaft of third motor passes the lateral wall of first cooling chamber and links to each other with the initiative compression roller is fixed.

Through adopting above-mentioned technical scheme, the setting of initiative compression roller and driven compression roller can flatten the belted steel surface through direction subassembly, reduces the belted steel surface and appears unevenness's the condition.

Optionally, a heat energy recovery channel is arranged outside the first cooling chamber, one end of the heat energy recovery channel is communicated with the first cooling chamber, the other end of the heat energy recovery channel is communicated with the heat energy radiation chamber, and an air pump for pumping air in the first cooling chamber into the heat energy radiation chamber is arranged on the heat energy recovery channel.

Through adopting above-mentioned technical scheme, the temperature of belted steel has been absorbed to the air in the first cooling chamber, can go into the heat energy radiation chamber with hot-air pump through the air pump in to reduce the loss of heat energy, improved the utilization efficiency of heat energy, reduced manufacturing cost.

Optionally, a hot water recovery pipeline and a water storage tank are arranged on the second cooling chamber, the water storage tank is arranged outside the second cooling chamber, one end of the hot water recovery pipeline is connected with the bottom wall of the second cooling chamber, and the other end of the hot water recovery pipeline is connected with the water storage tank.

By adopting the technical scheme, water after cooling the strip steel can flow through the hot water recovery pipeline to enter the water storage tank to be stored, and when hot water is needed in other processes, the hot water in the water storage tank can be used as a supply source, so that the utilization efficiency of resources is improved, and the waste of heat energy is reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the arrangement of the first partition plate and the second partition plate divides the cooling chamber into three cooling chambers, and the cooling effect of the cooling assemblies in the three cooling chambers is gradually increased, so that the strip steel is gradually cooled in the three cooling chambers, and the possibility of quenching and breaking of the strip steel is reduced;

2. the lifting assembly is arranged, so that the height of the moving strip can be controlled, the cooling effect of the third cooling assembly can be controlled by controlling the distance between the nozzle and the strip steel, and the applicability of the third cooling assembly is improved;

3. the guide assembly is arranged, so that the time of the strip steel in the first cooling chamber is prolonged, and the cooling effect of the first cooling assembly is improved.

Drawings

FIG. 1 is a schematic view of the structure of an annealing furnace in the embodiment of the present application;

FIG. 2 is a cross-sectional view of an annealing furnace in an embodiment of the present application, showing the connection relationship of the components of the cooling chamber with the furnace body;

FIG. 3 is a cross-sectional view of the annealing furnace in the embodiment of the present application for showing the connection relationship of each component in the third cooling chamber with the third cooling chamber.

Description of reference numerals: 1. a furnace body; 2. a guide assembly; 21. a guide roller; 22. a first motor; 3. a cooling device; 31. a first cooling assembly; 311. a fan; 32. a second cooling assembly; 321. a water storage tank; 322. a connecting pipe; 323. a spray head; 324. a water pump; 33. a third cooling assembly; 331. a vacuum pump; 332. cooling the air pipe; 333. a moving bar; 334. a nozzle; 4. a lifting assembly; 41. a first lead screw; 42. a second lead screw; 43. a drive member; 431. a second motor; 432. a first bevel gear; 433. a second bevel gear; 434. a third bevel gear; 435. a fourth bevel gear; 436. a transmission rod; 5. a driving compression roller; 6. a driven press roll; 7. a third motor; 81. a first separator; 82. a second separator; 83. a heat recovery channel; 84. an air pump; 85. a hot water recovery pipeline; 86. a water storage tank; 87. a conveying member; 88. a interlayer plate; 91. a thermal energy radiation chamber; 92. a cooling chamber; 921. a first cooling chamber; 922. a second cooling chamber; 923. a third cooling chamber; 93. a first opening; 94. a second opening; 95. a coolant storage chamber; 96. cooling the cavity; 97. a first sliding groove; 98. a second sliding groove; 99. a cavity.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a hot galvanizing annealing furnace. Referring to fig. 1 and 2, the annealing furnace comprises a furnace body 1, wherein a strip steel inlet is formed in the end wall of one end of the furnace body 1, and a strip steel outlet is formed in the end wall of the other end of the furnace body 1. A heat energy radiation chamber 91 and a cooling chamber 92 are arranged in the furnace body 1 along the length direction of the furnace body 1, and a plurality of conveying pieces 87 used for conveying strip steel are arranged in the furnace body 1 along the length direction. A first partition plate 81 and a second partition plate 82 are vertically and fixedly connected in the cooling chamber 92, a first opening 93 for strip steel to pass through is formed in the first partition plate 81, and a second opening 94 for strip steel to pass through is formed in the second partition plate 82. The first and

second partitions

81 and 82 divide the cooling chamber 92 into a first cooling chamber 921, a second cooling chamber 922, and a third cooling chamber 923.

Referring to fig. 1 and 2, the cooling device 3 is disposed at the top and bottom of the cooling chamber 92, and the cooling device 3 includes a first cooling module 31 disposed in a first cooling chamber 921, a second cooling module 32 disposed in a second cooling chamber 922, and a third cooling module 33 disposed in a third cooling chamber 923.

Referring to fig. 2, air inlets are formed in the top wall and the bottom wall of the first cooling chamber 921, the first cooling module 31 located at the top of the first cooling chamber 921 includes a fan 311 fixedly installed on the upper surface of the first cooling chamber 921, and the fan 311 is communicated with the air inlets.

Referring to fig. 1 and 2, 4 sets of guide assemblies 2 are alternately arranged in the first cooling chamber 921 along the strip conveying direction, and each guide assembly 2 includes a guide roller 21 and a first motor 22. First motor 22 passes through bolt fixed connection on the lateral wall of first cooling chamber 921, and the output shaft of first motor 22 passes one side lateral wall of first cooling chamber 921 and is fixed continuous with the one end of guide roll 21, and the other end of guide roll 21 rotates with the opposite side inside wall of first cooling chamber 921 and links to each other.

Referring to fig. 1 and 2, a driving pressure roller 5 and a driven pressure roller 6 are rotatably disposed on one side of the first cooling chamber 921 close to the first opening 93, the driving pressure roller 5 is located below the driven pressure roller 6, and a gap for the strip steel to pass through is reserved between the driving pressure roller 5 and the driven pressure roller 6. There is a third motor 7 on the lateral wall of first cooling chamber 921 through bolt fixed mounting, and one side lateral wall that the output shaft of third motor 7 passed first cooling chamber 921 is fixed continuous with the one end of initiative compression roller 5, and the other end of initiative compression roller 5 rotates with the opposite side lateral wall of first cooling chamber 921 and links to each other.

Referring to fig. 1, a heat energy recovery pipe is fixedly connected to a side wall of the first cooling chamber 921, an end of the heat energy recovery pipe, which is far away from the first cooling chamber 921, is communicated with the heat energy radiation chamber 91, and an air pump 84 for pumping the air pump 84 in the first cooling chamber 921 into the cooling radiation chamber is fixedly installed on the heat energy recovery pipe.

Referring to fig. 2 and 3, the second cooling module 32 disposed at the top of the second cooling chamber 922 includes a water storage tank 321 disposed at the upper surface of the second cooling chamber 922, a connection pipe 322 connected to the water storage tank 321, and a spray head 323 fixedly connected to the connection pipe 322. One end of the connecting pipe 322, which is far away from the water storage tank 321, extends into the second cooling chamber 922 through the upper surface of the second cooling chamber 922, one end of the connecting pipe 322, which extends into the second cooling chamber 922, is fixedly connected with the spray head 323, and the water pump 324 is fixedly mounted on the connecting pipe 322. The lower surface of the second cooling chamber 922 is fixedly connected with a hot water recovery pipeline 85, and one end of the hot water recovery pipeline 85 far away from the second cooling chamber 922 is fixedly connected with a water storage tank 86.

Referring to fig. 2 and 3, two interlayer plates 88 are fixedly connected to the third cooling chamber 923 in sequence in the height direction of the third cooling chamber 923, and the two interlayer plates 88 divide the third cooling chamber 923 into two cooling liquid storage cavities 95 located at the upper and lower sides of the third cooling chamber 923 and a cooling cavity 96 located between the two interlayer plates 88. The coolant storage chamber 95 is provided with coolant.

Referring to fig. 3, a first sliding groove 97 is formed in one side wall of the cooling cavity 96 along the height direction of the cooling cavity 96, and a second sliding groove 98 is formed in the other side wall of the cooling cavity 96 along the height direction of the cooling cavity 96.

Referring to fig. 2 and 3, the third cooling assembly 33 located at the top of the third cooling chamber 923 includes a vacuum pump 331, a cooling air pipe 332, a movable strip 333 and four nozzles 334, the vacuum pump 331 is fixedly installed on the upper surface of the third cooling chamber 923 through bolts, one end of the cooling air pipe 332 is fixedly connected with the air outlet end of the vacuum pump 331, and the other end of the cooling air pipe 332 sequentially passes through the top wall of the third cooling chamber 923 and the partition plate 88 to be fixedly connected with the upper surface of the movable strip 333. The moving bar 333 is horizontally disposed in the cooling cavity 96, and one end of the moving bar 333 is slidably connected in the first sliding groove 97 and the other end is slidably connected in the second sliding groove 98. A cavity 99 is formed in the movable strip 333, and the cooling air pipe 332 is communicated with the cavity 99. Four nozzles 334 are fixedly installed at equal intervals along the length direction of the moving bar 333 on the lower surface of the moving bar 333, and each nozzle 334 is communicated with the cavity 99.

Referring to fig. 2 and 3, a lifting assembly 4 is disposed in the third cooling chamber 923, and the lifting assembly 4 includes a first lead screw 41, a second lead screw 42, and driving members 43 disposed on the upper surface and the lower surface of the third cooling chamber 923. The driving member 43 located on the upper surface of the third cooling chamber 923 includes a second motor 431, a first bevel gear 432, a second bevel gear 433, a third bevel gear 434, a fourth bevel gear 435, and a transmission rod 436.

Referring to fig. 3, the second motor 431 is fixedly installed on the upper surface of the third cooling chamber 923 by a placing plate, an output shaft of the second motor 431 is key-connected to the first bevel gear 432, and the second bevel gear 433 is vertically engaged with the first bevel gear 432. The first lead screw 41 is rotatably disposed in the first sliding groove 97, a first threaded connection hole is formed at one end of the moving bar 333 located in the first sliding groove 97, and the first lead screw 41 is in threaded connection with the moving bar 333 through the first threaded connection hole. One end of the first screw rod 41 passes through the end wall of one end of the first sliding groove 97, extends to the top of the third cooling chamber 923, and is connected with the second bevel gear 433 in a key manner, and the other end of the first screw rod 41 is rotatably connected with the end wall of the other end of the first sliding groove 97.

Referring to fig. 3, the third bevel gear 434 is disposed on a side of the upper surface of the third cooling chamber 923 away from the second bevel gear 433, the second screw rod 42 is rotatably disposed in the second sliding groove 98, a second threaded connection hole is formed at one end of the moving bar 333 located in the second sliding groove 98, and the second screw rod 42 is in threaded connection with the moving bar 333 through the second threaded connection hole. One end of the second screw rod 42 extends to the top of the third cooling chamber 923 through the end wall at one end of the second sliding groove 98 and is connected with the third bevel gear 434 in a key manner, and the other end of the second screw rod 42 is rotatably connected with the end wall at the other end of the second sliding groove 98. The fourth bevel gear 435 is vertically engaged with the third bevel gear 434. A transmission rod 436 is arranged between the first bevel gear 432 and the fourth bevel gear 435, one end of the transmission rod 436 is in key connection with the first bevel gear 432, and the other end of the transmission rod 436 is in key connection with the fourth bevel gear 435.

Referring to fig. 3, when the height of the moving bar 333 needs to be adjusted, the second motor 431 is started, the second motor 431 drives the first bevel gear 432 to rotate, the first bevel gear 432 drives the second bevel gear 433 and the transmission rod 436 to rotate, and the second bevel gear 433 drives the first lead screw 41 to rotate; the transmission rod 436 drives the fourth bevel gear 435 to rotate, the fourth bevel gear 435 drives the third bevel gear 434 to rotate, the third bevel gear 434 drives the second screw rod 42 to rotate, and the rotation of the first screw rod 41 and the second screw rod 42 drives the two ends of the moving bar 333 to slide in the first sliding groove 97 and the second sliding groove 98 respectively.

The implementation principle of the hot galvanizing annealing furnace in the embodiment of the application is as follows: when the strip steel needs to be annealed, the transmission part is started, the strip steel is sent into the furnace body 1 from the strip steel inlet by the transmission part, and the strip steel passes through the heat energy radiation chamber 91 and the cooling chamber 92 in sequence and finally leaves the furnace body from the strip steel outlet.

When the strip steel enters the cooling chamber 92, the first motor 22, the fan 311 and the air pump 84 are started, the first motor 22 drives the guide roller 21 to rotate, the guide roller 21 drives the strip steel to move towards the second cooling chamber 922, and the fan 311 sends outside air into the first cooling chamber 921 to cool the strip steel; the air pump 84 pumps the hot air 84 in the first cooling chamber 921 into the thermal energy radiation chamber 91 for thermal energy recovery. When the strip steel enters the second cooling chamber 922, the water pump 324 is started, the water pump 324 in the water storage tank 321 is pumped into the connecting pipe 322 by the water pump 324, and finally the strip steel is sprayed out from the spray nozzle 323 to further cool the strip steel; the heated hot water flows from the hot water recovery pipe 85 into the water tank 86 and is recovered. When the strip steel enters the third cooling chamber 923, the vacuum pump 331 is started, the vacuum pump 331 pumps the outside air 84 into the cooling pipeline, the outside air enters the cooling chamber 92 along with the cooling pipeline, is cooled by the cooling liquid in the cooling chamber 92, the cooled air enters the cavity 99 of the movable strip 333, and is finally sprayed to the strip steel from the nozzle 334, and the strip steel is cooled in the last step.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a hot dip galvanizing annealing furnace, includes furnace body (1), set up heat energy radiation chamber (91) and cooling chamber (92) in furnace body (1), its characterized in that: the top and the bottom of cooling chamber (92) all are provided with cooling device (3), be provided with first baffle (81) and second baffle (82) in cooling chamber (92), set up first opening (93) that supply belted steel to pass through on first baffle (81), set up second opening (94) that supply belted steel to pass through on second baffle (82), first baffle (81) and second baffle (82) are separated cooling chamber (92) for first cooling chamber (921), second cooling chamber (922) and third cooling chamber (923) along the transmission direction of belted steel, cooling device (3) are including being used for adopting natural wind to carry out refrigerated first cooling module (31), being used for adopting normal atmospheric temperature water to carry out refrigerated second cooling module (32) and being used for adopting the cooling air to carry out refrigerated third cooling module (33) to belted steel, first cooling module (31) sets up on first cooling chamber (921), second cooling module (32) set up on second cooling chamber (922), third cooling module (33) set up on third cooling chamber (923), first cooling module (31) are including installing fan (311) outside first cooling chamber (921), the income wind gap has been seted up on the lateral wall of first cooling chamber (921), the air outlet and the income wind gap of fan (311) are linked together.

2. The hot galvanizing annealing furnace according to claim 1, characterized in that: the second cooling assembly (32) comprises a connecting pipe (322), a water storage tank (321) arranged outside the second cooling chamber (922) and a spray head (323) arranged in the second cooling chamber (922), one end of the connecting pipe (322) is communicated with the water storage tank (321), the other end of the connecting pipe (322) penetrates through one side wall of the second cooling chamber (922) to be communicated with the spray head (323), and a water pump (324) is arranged on the connecting pipe (322).

3. The hot galvanizing annealing furnace according to claim 1, characterized in that: two interlayer plates (88) are sequentially arranged in the third cooling chamber (923) along the height direction of the third cooling chamber (923), two interlayer plates (88) separate the third cooling chamber (923) into two coolants located at the upper and lower sides of the third cooling chamber (923) and store the chamber (95) and the cooling cavity (96) located between the two interlayer plates (88), the coolants are stored in the chamber (95), the third cooling assembly (33) comprises a vacuum pump (331), a cooling air pipe (332), a moving strip (333) and a plurality of nozzles (334) facing the strip steel, the vacuum pump (331) is arranged outside the third cooling chamber (923), one end of the cooling air pipe (332) is connected with the air outlet end of the vacuum pump (331), the other end of the cooling air pipe (332) is connected with the moving strip (333), the moving strip (333) is arranged on the inner side wall of the cooling cavity (96) along the transmission direction of the strip steel, the air cooling device is characterized in that a cavity (99) is formed in the movable strip (333), the cooling air pipe (332) is communicated with the cavity (99), the nozzles (334) are arranged on the movable strip (333), and the nozzles (334) are communicated with the cavity (99).

4. The hot galvanizing annealing furnace according to claim 1, characterized in that: be provided with direction subassembly (2) on first cooling chamber (921), direction subassembly (2) are including a plurality of guide roll (21) that are used for driving belted steel and a plurality of first motor (22) that are used for driving guide roll (21) pivoted, and are a plurality of guide roll (21) crisscross setting is in first cooling chamber (921), first motor (22) set up outside first cooling chamber (921), the lateral wall that the output shaft of first motor (22) passed first cooling chamber (921) links to each other with guide roll (21) is fixed.

5. A hot dip galvanizing lehr according to claim 3, characterized in that: first sliding tray (97) have been seted up along the direction of height of cooling cavity (96) on the lateral wall of one side of cooling cavity (96), second sliding tray (98) have been seted up along the direction of height of cooling cavity (96) on the opposite side lateral wall of cooling cavity (96), the both ends of removing strip (333) slide respectively and set up in first sliding tray (97) and second sliding tray (98), be provided with in third cooling chamber (923) and be used for adjusting lifting unit (4) that remove strip (333) height, it links to each other with lifting unit (4) to remove strip (333).

6. The hot galvanizing annealing furnace according to claim 5, characterized in that: lifting unit (4) include first lead screw (41), second lead screw (42) and driving piece (43), the one end of first lead screw (41) is rotated and is set up on the one end wall of first sliding tray (97), the end wall that the other end of first lead screw (41) passed first sliding tray (97) other end links to each other with driving piece (43), one end threaded connection of first lead screw (41) and removal strip (333), the one end of second lead screw (42) is rotated and is set up on the one end wall of second sliding tray (98), the one end wall that the other end of second lead screw (42) passed second sliding tray (98) links to each other with driving piece (43), the one end threaded connection that first lead screw (41) was kept away from with removal strip (333) is drawn together to second lead screw (42).

7. The hot galvanizing annealing furnace according to claim 6, characterized in that: the driving part (43) is arranged outside the third cooling chamber (923), the driving part (43) comprises a second motor (431), a first bevel gear (432), a second bevel gear (433), a third bevel gear (434), a fourth bevel gear (435) and a transmission rod (436), the second motor (431) is arranged outside the third cooling chamber (923), an output shaft of the second motor (431) is in key connection with the first bevel gear (432), the second bevel gear (433) is meshed with the first bevel gear (432), one end of the first screw rod (41) passes through the end wall of the first sliding groove (97) to be in key connection with the second bevel gear (433), the third bevel gear (434) is arranged on one side of the third cooling chamber (923) far away from the first bevel gear (432), one end of the second screw rod (42) passes through the end wall of the second sliding groove (98) to be in key connection with the third bevel gear (434), the fourth bevel gear (435) is meshed with the third bevel gear (434), the transmission rod (436) is arranged between the first bevel gear (432) and the third bevel gear (434), one end of the transmission rod (436) is in key connection with the first bevel gear (432), and the other end of the transmission rod is in key connection with the third bevel gear (434).

8. The hot galvanizing annealing furnace according to claim 4, characterized in that: first cooling chamber (921) internal rotation is provided with initiative compression roller (5) and driven compression roller (6), initiative compression roller (5) and driven compression roller (6) all are located one side that first cooling chamber (921) is close to first opening (93), leave the clearance that supplies belted steel to pass through between initiative compression roller (5) and driven compression roller (6), first cooling chamber (921) is provided with third motor (7) outward, the lateral wall that the output shaft of third motor (7) passed first cooling chamber (921) links to each other with initiative compression roller (5) is fixed.

9. The hot galvanizing annealing furnace according to claim 1, characterized in that: first cooling chamber (921) is provided with heat recovery passageway (83) outward, the one end and first cooling chamber (921) of heat recovery passageway (83) are linked together, the other end and the heat energy radiation chamber (91) of heat recovery passageway (83) are linked together, be provided with on heat recovery passageway (83) and be used for the air pump (84) of the gas pump income heat energy radiation chamber (91) in first cooling chamber (921).

10. The hot galvanizing annealing furnace according to claim 2, characterized in that: the second cooling chamber (922) is provided with a hot water recovery pipeline (85) and a water storage tank (86), the water storage tank (86) is arranged outside the second cooling chamber (922), one end of the hot water recovery pipeline (85) is connected with the bottom wall of the second cooling chamber (922), and the other end of the hot water recovery pipeline (85) is connected with the water storage tank (86).