Temper mill and exhaust hood thereof

Abstract

The smoke exhaust hood comprises a hood body, the hood body is used for being arranged in a temper mill platform and used for being arranged above strip steel in a covering mode, the hood body is provided with a transmission side and an operation side which are opposite to each other in the width direction of the strip steel, the width of the hood body is larger than that of the strip steel, and the transmission side and the operation side are opposite to each other. The transmission side of the cover body is connected with a smoke exhaust fan through a ventilation pipeline, and the cover body is provided with a connecting part at a preset position; the water receiving disc is used for receiving the liquid drops flowing out along the cover body; and the supporting mechanism is used for supporting the water pan and / or the cover body above the water pan. Condensed water is collected and discharged through the exhaust hood, and the quality of strip steel can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of strip steel production equipment, in particular to a leveling machine and a fume exhaust hood thereof. Background Art

[0002] In the production of cold-rolled strip steel, the flattening machine can eliminate the yield platform of the general plate strip steel after annealing, adjust the strip steel plate shape and adjust the plate surface roughness. In the production process, in order to clean the strip steel surface, reduce the wear between the strip steel and the roller, cool and lubricate the roller, and increase the service life of the roller, the existing flattening machine generally adopts the wet flattening process, that is, spraying the flattening liquid into the roller gap at the entrance of the flattening machine. The flattening liquid splashes to the outlet as the strip steel moves forward, and the residual flattening liquid will affect the quality of the strip steel.

[0003] In order to solve the problem of residual leveling liquid, compressed air blowing and exhaust fan suction are usually set at the leveling machine outlet. Usually, a leveling machine platform is set outside the leveling machine. The purge inside the leveling machine platform at the leveling machine outlet will cause turbulence in the limited space. The leveling liquid droplets on the turbulent air flow are easily brought to the strip steel, thus affecting the quality of the strip steel. Especially when the temperature is low in winter, the condensed water droplets on the leveling machine platform fall onto the strip steel, thus affecting the quality of the strip steel.

[0004] Therefore, it is necessary to propose a leveling machine and a fume exhaust hood thereof to solve the above problems. Summary of the invention

[0005] In view of the defects existing in the prior art, a leveling machine and an exhaust hood thereof are provided in an embodiment of the present invention. The exhaust hood is used to collect and discharge condensed water, which can effectively improve the quality of the strip.

[0006] The specific technical solution of the implementation mode of the present invention is:

[0007] A smoke exhaust hood, comprising:

[0008] A cover body, the cover body is used to be arranged in the flattening machine platform and is used to cover the top of the strip steel. In the width direction of the strip steel, the cover body has a driving side and an operating side opposite to each other. The width of the cover body is greater than the width of the strip steel. The driving side of the cover body is connected to the smoke exhaust fan through a ventilation duct. The cover body has a connecting portion at a predetermined position.

[0009] A water receiving tray, the water receiving tray is used to receive the liquid droplets flowing out along the cover body;

[0010] A supporting mechanism is used to support the water receiving tray and / or the cover body above the water receiving tray.

[0011] In a preferred embodiment, the cover body includes a cone top, and the cone top includes: a first side panel, a second side panel, a third side panel and a fourth side panel. The cone top is formed by surrounding the first side panel, the second side panel, the third side panel and the fourth side panel, and the first side panel, the second side panel, the third side panel and the fourth side panel are all inclined along the height direction.

[0012] In a preferred embodiment, the fourth side panel is located on the transmission side of the cover body, the first side panel is located on the operating side of the cover body, the second side panel and the third side panel are connected between the first side panel and the fourth side panel; a first port is opened on the first side panel, a second port is opened on the second side panel, a third port is opened on the third side panel, and a fourth port is opened on the fourth side panel; the first port, the second port and the third port are respectively provided with water retaining parts, and the fourth port is used to set the ventilation duct.

[0013] In a preferred embodiment, the first opening, the second opening and the third opening are rectangular openings, and the water retaining portion includes: water retaining guide grooves arranged on the upper side of the rectangular opening, on the left side of the rectangular opening and on the right side of the rectangular opening.

[0014] In a preferred embodiment, the cross section of the water retaining channel is in the shape of a groove, having a channel bottom and long sides and short sides arranged on both sides inside and outside the channel bottom, and the long sides are fixed on the cone top.

[0015] In a preferred embodiment, one end of the ventilation duct is inserted into the fourth port, and the other end of the ventilation duct is provided with a flange structure.

[0016] In a preferred embodiment, the cover body further comprises a surrounding frame, and the surrounding frame is sealingly connected to the lower part of the cone top.

[0017] In a preferred embodiment, a top opening is formed at the top of the cone top, and the frame is a frame that penetrates from top to bottom. When the smoke exhaust fan is started, a first negative pressure zone can be formed between the frame and the strip steel, and a second negative pressure zone can be formed between the top opening and the leveling machine platform.

[0018] In a preferred embodiment, the supporting mechanism includes: a first bracket and a second bracket, the first bracket is fixed on the operating side of the leveling machine platform, and the second bracket is fixed on the transmission side of the leveling machine platform.

[0019] In a preferred embodiment, the height of the first bracket is higher than that of the second bracket, so that the position of the water receiving tray on the operating side is higher than that on the transmission side.

[0020] In a preferred embodiment, the smoke exhaust hood further comprises a frame, and the frame is used to improve the strength of the hood body, and the frame is arranged along the connecting portion.

[0021] In a preferred embodiment, the supporting mechanism comprises a hanger, one end of which is connected to the frame, and the other end of which is used to be fixed on the leveling machine platform.

[0022] In a preferred embodiment, a predetermined angle is formed between the water receiving tray and the horizontal plane, and the accumulated water in the water receiving tray can automatically flow from the operating side to the transmission side under the action of gravity.

[0023] In a preferred embodiment, the water receiving tray is further provided with a drain pipe near the transmission side, and the drain pipe is used to drain the accumulated water in the water receiving tray to a predetermined position.

[0024] In a preferred embodiment, an anti-rust layer is provided inside the cover.

[0025] A leveling machine comprises any of the above-mentioned fume exhaust hoods.

[0026] The technical solution of the present invention has the following significant beneficial effects:

[0027] In the embodiment of the present application, the exhaust hood is arranged in the flattening machine platform, and the exhaust hood is arranged above the strip steel. The exhaust hood can be used in conjunction with the exhaust fan, and the transmission side of the hood is connected to the exhaust fan through a ventilation duct. The suction effect of the exhaust fan will form a relatively stable exhaust-suction airflow in the flattening machine platform, which can prevent the flattening liquid from splashing to a certain extent. In addition, the exhaust hood can be used to collect and discharge the condensed water, which can effectively improve the quality of the strip steel.

[0028] Furthermore, the smoke exhaust hood may include a skeleton having a connecting portion at a predetermined position, and the skeleton is arranged along the connecting portion. The skeleton can not only be used to improve the strength of the hood body, but also can not affect the guiding effect of the hood body on the droplets, so that the liquid on the surface of the hood body can be guided to the water receiving tray, and the water will not drip onto the strip and affect the quality of the strip, thereby improving the surface quality of the strip.

[0029] After the frame is provided, the material thickness of the cover body can be effectively reduced, thereby reducing the overall mass of the cover body and also reducing the manufacturing cost of the smoke exhaust hood.

[0030] With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications and equivalents. Features described and / or shown for one embodiment can be used in one or more other embodiments in the same or similar manner, combined with features in other embodiments, or replace features in other embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the figures are only schematic, used to help understand the present invention, and are not specifically limited to the shapes and proportional dimensions of the various components of the present invention. Those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to the teachings of the present invention.

[0032] Figure 1 It is a structural schematic diagram of a fume exhaust hood of a leveling machine provided in an embodiment of the present application;

[0033] Figure 2 A front view of a fume hood of a leveling machine provided in an embodiment of the present application;

[0034] Figure 3 A side view of a fume hood of a leveling machine provided in an embodiment of the present application;

[0035] Figure 4 A bottom view of a fume hood of a leveling machine provided in an embodiment of the present application;

[0036] Figure 5 It is a partial schematic diagram of a water retaining guide groove of a smoke exhaust hood of a leveling machine provided in an embodiment of the present application.

[0037] Reference numerals of the present application:

[0038] 01. Mask body;

[0039] 101, first side panel;

[0040] 102, second side panel;

[0041] 103, third side panel;

[0042] 104, fourth side panel;

[0043] 105, fifth side panel;

[0044] 106, sixth side panel;

[0045] 107, first upper water retaining guide groove;

[0046] 108. A first side water retaining guide groove;

[0047] 109, second upper water retaining guide groove;

[0048] 110, second side water retaining guide groove;

[0049] 111. First air duct steel plate;

[0050] 112. Second air duct steel plate;

[0051] 113. First angle steel;

[0052] 114. Second angle steel;

[0053] 120, rectangular opening;

[0054] 130. Water retaining channel;

[0055] 131, long side; 132, short side; 133, groove bottom;

[0056] 02. Skeleton;

[0057] 03. Water tray;

[0058] 401, first type steel; 402, second type steel; 403, third type steel; 404, fourth type steel; 405, fifth type steel; 406, steel pipe;

[0059] 04. The first bracket;

[0060] 05. The second bracket;

[0061] 06. Drain pipe;

[0062] 7. Strip steel;

[0063] 8. Leveling machine platform;

[0064] 91. Ventilation ducts;

[0065] 92. Flange structure;

[0066] F1, first negative pressure zone;

[0067] F2, the second negative pressure zone. DETAILED DESCRIPTION

[0068] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0069] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0070] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0071] The present invention provides a leveling machine and a smoke exhaust hood thereof. The smoke exhaust hood can be used in conjunction with a smoke exhaust fan. The smoke exhaust hood is used to collect and discharge condensed water, thereby effectively improving the quality of the strip steel.

[0072] Please refer to Figures 1 to 5 In the embodiment of the specification of the present application, a smoke exhaust hood of a leveling machine is provided, and the smoke exhaust hood may include: a hood body 01, the hood body 01 is used to be arranged in the leveling machine platform 8, and is used to cover the top of the strip steel 7, along the width direction of the strip steel 7, the hood body 01 has a relative transmission side and an operation side, the width of the hood body 01 is greater than the width of the strip steel 7, the transmission side of the hood body 01 is connected to the smoke exhaust fan through the ventilation duct 91, and the hood body 01 has a connecting portion at a predetermined position; a water receiving tray 03, the water receiving tray 03 is used to receive droplets flowing out along the hood body 01; a supporting mechanism, the supporting mechanism is used to support the water receiving tray 03.

[0073] In the embodiment of the present application, the exhaust hood is provided in the leveling machine platform 8, and the exhaust hood is provided above the strip steel 7. The exhaust hood can be used in conjunction with the exhaust fan, and the transmission side of the hood body 01 is connected to the exhaust fan through the ventilation duct 91. The suction effect of the exhaust fan will form a relatively stable exhaust-suction airflow in the leveling machine platform 8, which can prevent the leveling liquid from splashing to a certain extent. In addition, the exhaust hood can be used to collect and discharge the condensed water, which can effectively improve the quality of the strip steel.

[0074] Furthermore, the smoke exhaust hood may include a skeleton 02 having a connecting portion at a predetermined position, and the skeleton 02 is arranged along the connecting portion. The skeleton 02 can not only be used to improve the strength of the hood body 01, but also can not affect the guiding effect of the hood body 01 on the droplets, so that the liquid on the surface of the hood body 01 can be guided to the water receiving tray 03, and the water will not drip onto the strip steel 7 to affect the quality of the strip steel 7, thereby improving the surface quality of the strip steel 7.

[0075] After the frame 02 is provided, the material thickness of the cover body 01 can be effectively reduced, thereby reducing the overall mass of the cover body 01 and also reducing the manufacturing cost of the smoke exhaust hood.

[0076] The present application will be described in detail below with reference to specific drawings and implementation methods.

[0077] In the implementation manner of the present application, the smoke exhaust hood may include: a hood body 01, a frame 02, a water receiving tray 03, etc.

[0078] The cover 01 is arranged in the flattening machine platform 8 and is used to cover the strip steel 7. Specifically, the cover 01 can be symmetrically arranged about the rolling center line. In the width direction of the strip steel 7, the cover 01 has a relative transmission side and an operating side. The width of the cover 01 is greater than the width of the strip steel 7. Figure 2 As shown, in the wide band direction, the gap between the cover 01 and the strip steel 7 is W1, the gap between the cover 01 and the strip steel 7 is W2, and the width of the cover 01 is: W1+the width of the strip steel 7+W2. The specific values ​​of W1 and W2 are not specifically limited in this application.

[0079] The transmission side of the cover body 01 is connected to the smoke exhaust fan through the ventilation duct 91. The suction effect of the smoke exhaust fan will form a relatively stable exhaust-suction airflow in the leveling machine platform 8, which can prevent the leveling liquid from splashing to a certain extent.

[0080] The cover body 01 can be formed by splicing steel plates. The cover body 01 has a weld at a predetermined position. The predetermined position is a welding position of adjacent steel plates.

[0081] Specifically, the overall structure of the cover 01 may be in a cone shape, and the cone may include four planes in the circumferential direction. Alternatively, the structure of the cover 01 may also be in a cone-like shape. The cone-like shape may include multiple planes in the circumferential direction, which may be greater than four, such as six, or less than four.

[0082] In the embodiments and drawings of the present application, the structure in which the cone includes four planes is mainly taken as an example for illustration.

[0083] For example, the cover body 01 may include a cone top, and a first negative pressure area F1 may be formed above the cone top under the suction action of the smoke exhaust fan, so that the airflow is not easy to splash out from the cover body 01 through the cone top.

[0084] The cone top includes: a first side panel 101, a second side panel 102, a third side panel 103 and a fourth side panel 104. The cone top is formed by surrounding the first side panel 101, the second side panel 102, the third side panel 103 and the fourth side panel 104. The first side panel 101, the second side panel 102, the third side panel 103 and the fourth side panel 104 are all inclined along the height direction.

[0085] Liquid formed by condensation of moisture in the air due to temperature changes, liquid generated by splashing of leveling liquid, etc. may adhere to the cover body 01. The cone top structure makes it easier for liquid inside and outside the cover body 01 to flow along the cover body 01 to the water receiving tray 03 under the action of gravity.

[0086] In this embodiment, the cone top can be formed by surrounding a plurality of plates, and the specific material of the plates can be steel plates. Of course, in the embodiment of the present application, the material of the plates is not limited to steel plates, and can also be other materials.

[0087] Furthermore, the fourth side panel 104 is located on the transmission side of the cover body 01, the first side panel 101 is located on the operating side of the cover body 01, the second side panel 102 and the third side panel 103 are connected between the first side panel 101 and the fourth side panel 104; a first opening is opened on the first side panel 101, a second opening is opened on the second side panel 102, a third opening is opened on the third side panel 103, and a fourth opening is opened on the fourth side panel 104, the first opening, the second opening and the third opening are respectively provided with water retaining parts, and the fourth opening is used to set the ventilation duct 91.

[0088] The first port, the second port and the third port serve as the air intake port of the smoke exhaust hood, and the fourth port can serve as the air exhaust port of the smoke exhaust hood. After the smoke exhaust fan is started, the originally turbulent airflow inside the smoke exhaust hood is turned into a relatively stable exhaust-suction airflow as a whole. Among them, the first port, the second port and the third port are rectangular openings 120. Of course, the specific shapes of the first port, the second port and the third port are not limited to the above examples, and they can also be other regular or irregular structures, such as circular holes, triangular holes, etc. When the first port, the second port and the third port are rectangular openings 120, the manufacturing process is relatively simple and the cost is low. In the embodiments and drawings of the present application, the rectangular opening 120 is mainly used as an example for explanation.

[0089] The water retaining part may include: water retaining guide grooves arranged on the upper side, the left side and the right side of the rectangular opening 120. The water retaining guide grooves are arranged on the upper side, the left side and the right side (i.e., except the lower side) of each first opening, second opening and third opening. Figure 2 As shown, a first upper water retaining guide groove 107 and a first side water retaining guide groove 108 can be provided at the rectangular opening 120 of the first side plate 101; a second upper water retaining guide groove 109 and a second side water retaining guide groove 110 can be provided at the rectangular opening 120 of the second side plate 102. In addition, a third upper water retaining guide groove and a third side water retaining guide groove can be provided at the rectangular opening 120 of the second side plate 102.

[0090] The water retaining guide groove is used to form a water retaining structure at the periphery of the rectangular opening 120. The water retaining guide groove at the periphery of each rectangular opening 120 can block the water flow flowing toward the rectangular opening 120, thereby preventing droplets from directly dripping downward at the rectangular opening 120 and dripping onto the steel strip 7, thereby affecting the performance of the steel strip 7; at the same time, the water flow is guided along the water retaining guide groove to the water receiving tray 03.

[0091] like Figure 5 As shown, in a specific embodiment, the cross-section of the water retaining channel is in the shape of a groove, having a channel bottom 133 and long sides 131 and short sides 132 arranged on both sides inside and outside the channel bottom 133, and the long sides 131 are fixed on the cone top.

[0092] The water retaining guide groove can be made of a steel plate, and its cross section can be a U-shaped groove, with one side of the U-shaped groove being long and the other side being short.

[0093] The long sides of the U-shaped groove are welded to the upper side and left and right sides of each rectangular opening 120 of the first side plate 101, the second side plate 102 and the third side plate 103. More specifically, the water retaining groove can be made by bending a 4 mm steel plate. For example, the water retaining groove can be: the long side 131 is 50 mm high, the short side 132 is 25 mm high, the groove bottom 133 is 50 mm wide, and the rounded corner is 5.

[0094] Of course, the specific form of the water retaining guide groove is not limited to the above examples. Technical personnel in the relevant field may make other changes inspired by the technical essence of this application. However, as long as the functions and effects achieved are the same or similar to those of this application, they should be covered within the scope of protection of this application.

[0095] In one embodiment, the ventilation duct 91 is formed by welding steel plates, one end of the ventilation duct 91 is inserted into the fourth port, and the other end of the ventilation duct 91 is provided with a flange structure 92 .

[0096] In this embodiment, the fourth opening may be a rectangular opening 120, one end of the ventilation duct 91 is inserted into the first opening, and the outer contour of the ventilation duct 91 may be adapted to the opening shape of the fourth opening, that is, may also be rectangular.

[0097] The ventilation duct 91 can be formed by welding steel plates. Figure 3 As shown, the ventilation duct 91 can be formed by welding the first duct steel plate 111 and the second duct steel plate 112 after splicing. Of course, the specific structure and forming method of the ventilation duct 91 are not limited to the above examples. In the implementation mode of the present application, the ventilation duct 91 with a rectangular cross section is mainly used as an example for explanation. When the cross section of the ventilation duct 91 is rectangular, the flange structure 92 provided at one end of the ventilation duct for connecting to the smoke exhaust fan can be specifically a rectangular flange. By providing the flange structure 92, the sealing and reliability of the connection position can be ensured.

[0098] Specifically, the rectangular flange can be formed by welding angle steels. For example, the rectangular flange can include a first angle steel 113 and a second angle steel 114 , and the first angle steel 113 and the second angle steel 114 form a rectangular flange and are welded to the ventilation duct 91 .

[0099] Please refer to Figure 2 and Figure 3 In one embodiment, the cover body 01 may further include a surrounding frame, and the surrounding frame is sealed and connected to the lower part of the cone top.

[0100] In this embodiment, the cover body 01 may include a cone and a surrounding frame arranged up and down, and the cone and the surrounding frame may be sealed and connected at the matching position. Specifically, the sealed connection may be welding. Of course, this application does not exclude that the cone and the surrounding frame may be made by integral molding or the like.

[0101] The surrounding frame can be specifically formed by splicing the fifth side plate 105 and the sixth side plate 106. Specifically, the structure of the surrounding frame can be adapted to the lower end of the cone top. For example, when the lower end of the cone top is rectangular, the surrounding frame can also be rectangular.

[0102] Among them, a top opening is formed at the top of the cone, and the frame is a frame that penetrates from top to bottom. When the smoke exhaust fan is started, a first negative pressure zone F1 can be formed between the frame and the strip steel 7, and a second negative pressure zone F2 can be formed between the top opening and the leveling machine platform 8.

[0103] When the smoke exhaust fan is started, the airflow in the leveling machine platform 8 can enter the smoke exhaust hood through the first port, the second port and the third port, the top opening of the cone and the lower end of the frame, and be discharged from the fourth port through the ventilation duct 91.

[0104] In one embodiment, an anti-rust layer is provided on the inner side of the cover body 01 .

[0105] Specifically, the material used for the cover body 01 can be mainly steel plate (for example, carbon steel, preferably No. 20 carbon steel). The steel plate will rust after long-term contact with water, thereby affecting the service life of the steel plate. In particular, for the inner layer of the cover body 01, if it is rusted, the condensed water will drip down onto the steel strip 7 after flowing through the rusted cover body 01, which will seriously affect the quality of the steel strip 7. In order to improve the service life of the cover body 01 and ensure the surface quality of the steel strip 7, an anti-rust layer can be set at least on the inner side of the steel plate. Of course, an anti-rust layer can also be set on both the inner and outer sides of the steel plate to further improve the service life of the cover body 01.

[0106] The specific form of the anti-rust layer may be anti-rust oil, anti-rust paint, etc. Specifically, this application does not make the sole limitation here.

[0107] In this embodiment, the cover body 01 has a connection portion at a predetermined position. Specifically, in the embodiment of the present application, the connection portion is illustrated by taking a weld as an example.

[0108] A frame 02 is provided on the outer surface of the cover body 01 , and the frame 02 can be used to improve the strength of the cover body 01 , prevent the cover body 01 from being deformed during use, and at the same time do not hinder the flow of water droplets on the cover body 01 .

[0109] The frame 02 is made of steel. Specifically, the steel includes any one or a combination of the following: channel steel, angle steel, square steel. When the frame 02 is made of steel, it can be flexibly selected according to the strength requirements of the cover body 01. In addition, the overall production cost is low, and the performance can be reliably guaranteed.

[0110] like Figure 4 As shown, in this embodiment, the water receiving tray 03 is used to receive the liquid droplets flowing out along the cover body 01. The water receiving tray 03 can be located below the cover body 01. The outer contour size of the water receiving tray 03 can cover the lower end of the cover body 01, thereby ensuring that the water receiving tray 03 can fully collect the water flowing out of the cover body 01. Specifically, the water receiving tray 03 can be formed by welding a plurality of steel sections (a first steel section 401, a second steel section 402, a third steel section 403, a fourth steel section 404, and a fifth steel section 405) and a steel pipe 406.

[0111] In this embodiment, the supporting mechanism is used to support the water receiving tray 03 and / or the cover body 01 and the frame 02 above the water receiving tray 03 .

[0112] Specifically, the support mechanism can be connected to the leveling machine platform 8, so as to position the water receiving tray 03, and the cover body 01 and the frame 02 of the water receiving tray 03.

[0113] In one embodiment, the supporting mechanism may include: a first bracket 04 and a second bracket 05 , wherein the first bracket 04 is fixed to the operating side of the leveling machine platform 8 , and the second bracket 05 is fixed to the transmission side of the leveling machine platform 8 .

[0114] The first bracket 04 and the second bracket 05 can be in the form of angle steel, one side of which is used to connect to the leveling machine platform 8, and the other side is used to connect to the water receiving tray 03. Of course, the specific forms of the first bracket 04 and the second bracket 05 are not limited to the above examples.

[0115] Furthermore, the height of the first bracket 04 is higher than that of the second bracket 05, so that the position of the water receiving tray 03 on the operating side is higher than that on the transmission side. When the position of the water receiving tray 03 on the operating side is higher than that on the transmission side, a predetermined angle is formed between the water receiving tray 03 and the horizontal plane, and the accumulated water in the water receiving tray 03 can automatically flow from the operating side to the transmission side under the action of gravity.

[0116] Specifically, the predetermined angle is between 1° and 3°.

[0117] Theoretically, the larger the degree of the predetermined angle, the more obvious the drainage effect. However, the exhaust hood should be arranged at the entrance and exit side of the rack, and there are many equipment and pipelines nearby. The larger the degree of the predetermined angle, the easier it is to squeeze the space of other equipment. Therefore, the degree of the predetermined angle α is generally 1°-3° based on the above factors.

[0118] Furthermore, the water receiving pan 03 is also provided with a drain pipe 06 near the transmission side, and the drain pipe 06 is used to drain the accumulated water in the water receiving pan 03 to a predetermined position. Specifically, the drain pipe 06 can be a PVC pipe, a cotton braided hose, etc. Preferably, the drain pipe 06 can be a flexible pipe, so that interference is not easy to occur during installation.

[0119] In another embodiment, the supporting mechanism may include a hanger, one end of which is connected to the frame 02 , and the other end of which is used to be fixed on the leveling machine platform 8 .

[0120] In this embodiment, unlike the first bracket 04 and the second bracket 05, the support mechanism can use a hanger, and the exhaust hood can be hung up by the hanging feet. The hanger is fixedly connected to the frame 02, and the fixed connection method can be welding or bolt connection, etc. The other end of the hanger is fixed on the flattening machine platform 8, so that the exhaust hood can also be positioned. Specifically, in order to ensure that the water receiving tray 03 has a certain inclination angle, the water receiving tray 03 itself can be tilted, or the water receiving tray 03 can be tilted when suspended by the hanger, so that the above-mentioned technical effect of facilitating drainage and facilitating installation can also be achieved.

[0121] The present application also provides a leveling machine in an embodiment, and the leveling machine includes the above-mentioned exhaust hood. The leveling machine can achieve the technical effect achieved by the exhaust hood embodiment by setting the exhaust hood. For details, please refer to the specific description of the above-mentioned embodiment, and the present application will not repeat them here.

[0122] It should be noted that, in the description of this application, the terms "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, and they cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0123] The above-mentioned various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0124] The above are only a few embodiments of the present invention. Although the embodiments disclosed by the present invention are as above, the contents are only embodiments adopted for facilitating the understanding of the present invention and are not used to limit the present invention. Any technician in the technical field to which the present invention belongs can make any modification and change in the form and details of the embodiments without departing from the spirit and scope disclosed by the present invention, but the patent protection scope of the present invention shall still be subject to the scope defined by the attached claims.

Claims

1. A fume hood, characterized in that: The fume hood comprises: A cover body, the cover body is used to be arranged in the flattening machine platform and is used to cover the top of the strip steel. In the width direction of the strip steel, the cover body has a driving side and an operating side opposite to each other. The width of the cover body is greater than the width of the strip steel. The driving side of the cover body is connected to the smoke exhaust fan through a ventilation duct. The cover body has a connecting portion at a predetermined position. A water receiving tray, the water receiving tray is used to receive the liquid droplets flowing out along the cover body; A supporting mechanism is used to support the water receiving tray and / or the cover body above the water receiving tray.

2. The fume hood according to claim 1, characterized in that: The cover body includes a cone top, which includes: a first side panel, a second side panel, a third side panel and a fourth side panel. The cone top is formed by surrounding the first side panel, the second side panel, the third side panel and the fourth side panel. The first side panel, the second side panel, the third side panel and the fourth side panel are all inclined along the height direction.

3. The fume hood according to claim 2, characterized in that: The fourth side plate is located at the transmission side of the cover body, the first side plate is located at the operation side of the cover body, and the second side plate and the third side plate are connected between the first side plate and the fourth side plate; The first side plate is provided with a first opening, the second side plate is provided with a second opening, the third side plate is provided with a third opening, the fourth side plate is provided with a fourth opening, the first opening, the second opening and the third opening are respectively provided with a water retaining portion, and the fourth opening is used for providing the ventilation duct.

4. The fume hood according to claim 3, characterized in that: The first opening, the second opening and the third opening are rectangular openings, and the water retaining portion comprises: water retaining guide grooves arranged on the upper side of the rectangular opening, on the left side of the rectangular opening and on the right side of the rectangular opening.

5. The fume hood according to claim 4, characterized in that: The cross section of the water retaining guide groove is in the shape of a groove, and comprises a groove bottom and long sides and short sides arranged on both sides inside and outside the groove bottom, and the long sides are fixed on the cone top.

6. The fume hood according to claim 3, characterized in that: One end of the ventilation duct is inserted into the fourth port, and the other end of the ventilation duct is provided with a flange structure.

7. The fume hood according to claim 2, characterized in that: The cover body also includes a surrounding frame, and the surrounding frame is sealed and connected to the lower part of the cone top.

8. The fume hood according to claim 7, characterized in that: A top opening is formed at the top of the cone top, and the frame is a frame that penetrates from top to bottom. When the smoke exhaust fan is started, a first negative pressure zone can be formed between the frame and the strip steel, and a second negative pressure zone can be formed between the top opening and the leveling machine platform.

9. The fume hood according to claim 1, characterized in that: The supporting mechanism comprises: a first bracket and a second bracket, wherein the first bracket is fixed on the operating side of the leveling machine platform, and the second bracket is fixed on the transmission side of the leveling machine platform.

10. The fume hood according to claim 9, characterized in that: The height of the first bracket is higher than that of the second bracket, so that the position of the water receiving tray on the operating side is higher than that on the transmission side.

11. The fume hood according to claim 1, characterized in that: The smoke exhaust hood further comprises a frame, which is used to improve the strength of the hood body, and the frame is arranged along the connecting portion.

12. The fume hood according to claim 11, characterized in that: The supporting mechanism comprises a hanger, one end of which is connected to the frame, and the other end of which is used to be fixed on the leveling machine platform.

13. The fume hood according to claim 11 or 12, characterized in that: A predetermined angle is formed between the water receiving tray and the horizontal plane, and the accumulated water in the water receiving tray can automatically flow from the operating side to the transmission side under the action of gravity.

14. The fume hood according to claim 13, characterized in that: The water receiving tray is also provided with a drain pipe near the transmission side, and the drain pipe is used to drain the accumulated water in the water receiving tray to a predetermined position.

15. The fume hood according to claim 1, wherein: An anti-rust layer is arranged inside the cover body.

16. A leveling machine, characterized in that: The flattening machine comprises a fume hood as claimed in any one of claims 1 to 15.

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