CN218486879U - Cooling production line of high-speed wire rod - Google Patents

Abstract

The application provides a cooling production line of high-speed wire rod, this cooling production line include the roll table, along a plurality of cooling work districts that the direction of delivery of roll table distributes in proper order, atomizer and with the multiunit fan that cooling work district corresponds, atomizer acts on at least in the first cooling work district that distributes in proper order along direction of delivery. The application provides a cooling production line of high-speed wire rod produces the cooling-air through the fan in cooling work area, through atomizer blowout cooling water smoke in cooling work area, utilizes the cooperation of cooling-air and cooling water smoke (for example the cooling-air can promote cooling water smoke rapid diffusion, perhaps the cooling-air accelerates the rapid evaporation of cooling water smoke) to fully improve the cooling rate and the cooling degree of consistency of bulk roll to reach the purpose that improves the cooling effect.

Description

Cooling production line of high-speed wire rod

Technical Field

The application belongs to the technical field of high-speed wire rods, and more specifically relates to a cooling production line of high-speed wire rods.

Background

High speed wire (i.e., wire-made steel rolled by a high speed rolling mill) is typically cooled by a stelmor air cooling line (typically an air cooling roller bed) equipped with a high power fan. Generally, a feeding end of an air cooling line is provided with a laying head, a feeding end of the air cooling line is provided with a wire coiling column, wire-made steel is discharged through the laying head and is fed into the air cooling line, a plurality of fans distributed along the conveying direction of the air cooling line are used for quickly cooling the wire-made steel, and finally the wire-made steel is coiled through the wire coiling column. However, in the actual production process, since the wire-made steel is distributed in a loose manner when being conveyed on the air-cooling line, there are many overlapping portions, and the effect of cooling by adopting a single air-cooling method is poor (for example, the cooling speed is insufficient, the cooling is not uniform), which is not favorable for improving the product quality and the production efficiency.

SUMMERY OF THE UTILITY MODEL

An object of this application embodiment is to provide a cooling production line of high-speed wire rod to solve the not good technical problem of cooling effect of the wire system steel that exists among the prior art.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: provided is a cooling production line of a high-speed wire rod, comprising:

the roller way is used for conveying the loose rolls along the conveying direction;

the cooling working areas are distributed in sequence along the conveying direction corresponding to the roller way, and the cooling intensity of the cooling working areas is reduced in sequence along the conveying direction;

the multiple groups of fans are arranged in one-to-one correspondence with the cooling working areas; and

and the spraying device at least acts on the first cooling working areas which are distributed in sequence along the conveying direction.

In some embodiments of the present application, the spraying device is located above the roller table and acts on the infeed and/or outfeed ends of the cooling work area.

In some embodiments of the present application, the spraying device is provided with a spraying seat and a plurality of first spray heads at a feeding end and/or a discharging end of the cooling working area, and the plurality of first spray heads are uniformly distributed on one surface of the spraying seat facing the roller way.

In some embodiments of the application, every fan all is provided with supply air duct, and supply air duct's delivery end is located the below of roll table.

In some embodiments of the present application, the delivery end of part of the supply air duct is provided with a second spray head.

In some embodiments of the present application, the delivery end of the air delivery duct is arranged obliquely towards the roller table.

In some embodiments of this application, evenly be provided with the polylith guide plate along circumference on the inside wall of supply air duct's the end of giving vent to anger, every guide plate is along supply air duct's axial extension.

In some embodiments of the present application, the cooling line for high speed wire further comprises:

and the air collecting cover is arranged at the upper end of the roller way and is connected with the air draft pipeline.

In some embodiments of the application, the first two cooling work areas distributed in the conveying direction are provided with air collection hoods.

In some embodiments of the present application, each air collection hood is provided with a plurality of exhaust ducts.

The application provides a cooling production line of high-speed wire rod's beneficial effect lies in:

compared with the prior art, the cooling production line of the high-speed wire rod provided by the application generates cooling air in the cooling working area through the fan, sprays cooling water mist in the cooling working area through the spraying device, and sufficiently improves the cooling speed and the cooling uniformity of the uncoiled coil by utilizing the cooperation effect of the cooling air and the cooling water mist (for example, the cooling air can promote the cooling water mist to be rapidly diffused or the cooling air accelerates the rapid evaporation of the cooling water mist), so as to achieve the purpose of improving the cooling effect; meanwhile, the high-temperature uncoiling roll gradually decreases in temperature when passing through the plurality of cooling working areas in sequence, so that the required cooling strength is reduced, the cooling strength of the plurality of cooling working areas which are distributed in sequence along the conveying direction is set to be reduced in sequence, the high-temperature uncoiling roll is concentrated on the front half section of the roller way to perform strong cooling work, and the low-temperature ending work is performed on the rear half section of the roller way, so that the uniform cooling effect of the uncoiling roll can be further ensured, and energy can be saved to a certain extent.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments or the prior art description will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings may be obtained according to these drawings without inventive labor.

Fig. 1 is an overall schematic view of a cooling production line for high-speed wire rods according to an embodiment of the present application;

fig. 2 is a schematic structural and distribution diagram of the air supply, spraying and air draft operation corresponding to the conveying direction according to the embodiment of the present application;

FIG. 3 is a schematic view of an inner sidewall of the air supply duct according to the embodiment of the present application;

FIG. 4 is an enlarged view of a portion of FIG. 1 at A;

fig. 5 is an overall schematic view of a wind collecting cover according to an embodiment of the present disclosure.

Wherein, in the figures, the respective reference numerals:

10. a roller bed; 20. a first bracket;

100. cooling the working area; 101. a first cooling zone; 102. a second cooling zone; 103. a third cooling zone; 104. a fan; 105. a spraying device; 106. a wind collecting cover; 107. blocking strips; 108. an air extraction duct; 109. a second bracket; 110. unrolling; 111. locking the bolt;

200. a spray base; 201. a first nozzle;

300. an air supply duct; 301. a fixing hole; 302. a second spray head; 303. a baffle;

400. an exhaust duct;

500. and a through hole.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the application and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be constructed in operation as a limitation of the application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The background technology is combined to obtain that most of traditional stelmor air cooling lines in the prior art are provided with high-power fans for air cooling, and the cooling effect of a single air cooling mode is poor (especially, the requirements of products with different specifications and different steel types on cooling speed cannot be fully met, and the phenomenon of uneven cooling is easy to occur).

In order to solve the above technical problem, the present application provides a cooling production line for a high-speed wire rod, and in particular, please refer to fig. 1, the cooling production line for a high-speed wire rod provided in an embodiment of the present application includes a roller way 10, a plurality of cooling work areas 100, a plurality of sets of fans 104 and spraying devices 105, wherein the roller way 10 conveys a coil bundle 110 along a set conveying direction, the area where the roller way 10 is located is sequentially divided along the conveying direction to obtain the plurality of cooling work areas 100, the plurality of sets of fans 104 are distributed in one-to-one correspondence with the plurality of cooling work areas 100, each set of fans 104 is correspondingly disposed in the cooling work areas 100 and located below the roller way 10, and the spraying devices 105 are disposed in the cooling work areas 100 at least close to a feeding end of the roller way 10 to spray mixed water mist for cooling to the coil bundle 110. The wind power of the fans 104 in each cooling working area 100, the number of the fans 104, whether the spraying devices 105 are arranged or not, and the spraying amount of the spraying devices 105 are controlled, so that the whole cooling production line can correspondingly meet the cooling requirements of different specifications and different steel products, the cooling intensity (such as the design parameters of the cooling wind power, the spraying amount and the like) of the partial cooling working area 100 positioned in the front half section of the roller way 10 can be further controlled to be greater than that of the partial cooling working area 100 positioned in the rear half section of the roller way 10, the whole cooling intensity is in a state of descending in sequence along the conveying direction, the loose coils 110 are rapidly cooled in the front half section of the roller way 10, and the cooling ending operation (such as promoting water mist evaporation to achieve the purpose of removing water mist) is performed in the rear half section of the roller way 10.

Compared with the prior art, the cooling production line for the high-speed wire rod provided by the embodiment of the application does not adopt the traditional single air cooling mode to cool the uncoiled roll 110, but utilizes the fan 104 and the spraying device 105 to work in cooperation with the front half section of the roller way 10. It can be understood that the wind cooling and the water mist cooling can also cooperate, and the wet cooling air flow formed by mixing and forming can be quickly and fully contacted with the loose roll 110, so as to achieve a quick and uniform cooling effect, and fully improve the cooling efficiency. Further, the present application sets the strong cooling operation in the first half of the roller way 10, and the uncoiling coil 110 basically meets the technical requirements after such strong cooling, and continuous strong cooling in the subsequent conveying process is not needed, so that only weak cooling operation is needed in the second half of the roller way 10. Therefore, the cooling intensity of all the cooling working areas 100 is set to be gradually reduced along the conveying direction, so that the cooling uniformity of the rolls 110 can be sufficiently ensured, and the energy consumption can be reduced on the basis of sufficiently meeting the cooling requirement.

In some embodiments of the present application, referring to fig. 1, the roller track 10 is detachably disposed at the upper end of the first support 20, each set of fans 104 is disposed at the lower inner side of the first support 20 and in the corresponding cooling working area 100, and both the position and the number of the fans 104 can be adjusted to sufficiently meet the actual cooling requirement.

In some embodiments of the present application, the spraying device 105 is located above the roller table 10 and acts on the infeed and/or outfeed ends of the cooling work area 100.

According to the spraying device 105 of the embodiment of the present application, the spraying operation may be performed only at the feeding end or the feeding end of the cooling work area 100, or may be performed at both the feeding end and the feeding end of the cooling work area 100. It will be appreciated that the more spray devices 105 are in the respective cooling zones 100, the greater the cooling intensity of their respective cooling zones 100.

In some embodiments of the present application, referring to fig. 2, the spraying device 105 is provided with a spraying base 200 and a plurality of first spraying heads 201 at the feeding end and/or the discharging end of the cooling working area 100, the plurality of first spraying heads 201 are uniformly distributed on one surface of the spraying base 200 facing (or close to) the roller way 10, and the plurality of first spraying heads 201 are used for spraying the mixed water mist to the conveying surface of the roller way 10.

In some embodiments of the present application, referring to fig. 1, the plurality of cooling working areas 100 includes a first cooling area 101, a second cooling area 102, and a third cooling area 103 sequentially distributed along the conveying direction, wherein the first cooling area 101 is close to the feeding end of the roller way 10, the third cooling area 103 is close to the feeding end of the roller way 10, the first cooling area 101 is set as a strong cooling area, the third cooling area 103 is set as a weak cooling area, and the second cooling area 102 is an intermediate cooling area (or a transition area), and correspondingly, the spraying device 105 simultaneously acts on the feeding end and the feeding end of the first cooling area 101, and the feeding end of the second cooling area 102, so as to sufficiently improve the cooling effect.

It is understood that, in order to achieve the gradient change of strong cold, middle cold and weak cold, the spraying device 105 does not act on the third cooling area 103, and at the same time, the number of each set of fans 104 corresponding to the first cooling area 101, the second cooling area 102 and the third cooling area 103 may be set to be reduced in sequence to form the gradient air volume change to achieve the purpose of changing the cooling intensity.

Furthermore, the number of each group of fans 104 in the first cooling area 101, the second cooling area 102 and the third cooling area 103 can be set to be the same, but a small amount of air generated by the fans 104 in the second cooling area 102 is sent into the first cooling area 101 through a pipeline, and a large amount of air generated by the fans 104 in the third cooling area 103 is sent into the first cooling area 101 through a pipeline, so that gradient air volume change can be realized, which is beneficial to improving the initial cooling speed of the bulk roll 110, can ensure the cooling uniformity of the bulk roll 110 in the whole conveying process, effectively improves the energy utilization rate, and avoids energy waste.

In some embodiments of the present application, referring to fig. 2, each fan 104 is provided with an air supply duct 300, and an output end of the air supply duct 300 is located below the roller table 10 for supplying cooling air to the roller table 10.

In some embodiments of the present application, referring to fig. 2, the delivery ends of the partial air supply ducts 300 (such as all air supply ducts 300 in the first cooling area 101 and the partial air supply ducts 300 in the second cooling area 102) are provided with second nozzles 302 for spraying the mixed water mist to be fully mixed with the delivered cooling air, so as to further form a humid cooling air flow to improve the cooling speed and the cooling uniformity of the unrolling roll 110.

It will be appreciated that the cooling zone 100 (for example, the third cooling zone 103) located in the rear half of the roller way 10 does not need to further cool the rolls 110, so that the delivery end of the supply duct 300 acting therein does not need to be provided with the second nozzle 302. If the air volume is drawn from the second cooling area 102 and the third cooling area 103 through the duct and sent to the first cooling area 101 for accelerated cooling, the second spray head 302 can be arranged at the sending end of the duct to sufficiently improve the cooling efficiency.

In some embodiments of the present application, referring to fig. 2, the output ends of all the air supply ducts 300 may be inclined toward the conveying surface of the roller table 10, so as to substantially increase the cooling effect by increasing the effective area of the cooling air.

In some embodiments of the present application, please refer to fig. 3, a plurality of flow guiding plates 303 are disposed on the inner side walls of the delivery ends of all the air supply ducts 300, the plurality of flow guiding plates 303 are uniformly distributed along the circumferential direction, and each flow guiding plate 303 extends along the axial direction of the air supply duct 300.

According to the embodiment of the application, the plurality of guide plates 303 are used for forming an airflow guide structure at the outlet end of the air supply pipeline 300 so as to fully improve the flowing efficiency of cooling air and improve the cooling effect.

In some embodiments of the present application, please refer to fig. 2 and fig. 3, a fixing hole 301 is disposed on an inner sidewall of the air supply duct 300 between two adjacent guide plates 303, and a fixing end of the second nozzle 302 is detachably connected to the fixing hole 301, so as to achieve detachable installation with the air supply duct 300.

In some embodiments of the present application, referring to fig. 1, the cooling production line for high-speed wire rods further includes a wind-collecting cover 106, the wind-collecting cover 106 is detachably connected to upper ends of two opposite side walls of the roller table 10, the wind-collecting cover 106 is connected to the air draft system through an air draft pipeline 108, the wind-collecting cover 106 is located above the fan 104, and the spraying devices 105 are located on two sides of the wind-collecting cover 106.

According to the embodiment of the present application, the wind collecting cover 106 can be used to cover the upper space of the roller table 10 and cooperate with the air draft system to form a waste heat recovery system, so as to recover a large amount of hot air generated by cooling the loose coil 110, and provide high temperature air for other production parts (such as a burner air inlet pipe connected to a heating furnace) through a pipeline, thereby achieving the purposes of waste heat recovery and energy saving.

It can be understood that, after most of the heat generated by the cooling production line is extracted through the cooperation of the wind-collecting cover 106 and the air-extracting duct 108, the ambient temperature of the whole cooling production line can be effectively reduced, so that the arrangement mode is favorable for further feedback and improvement of the cooling efficiency of the whole cooling production line.

In some embodiments of the present application, referring to fig. 1, the first two cooling working areas 100 (i.e. the first cooling area 101 and the second cooling area 102) distributed along the conveying direction are both provided with a wind-collecting cover 106 for substantially improving the cooling efficiency of the cooling production line or improving the waste heat recovery efficiency.

In some embodiments of the present application, referring to fig. 1, fig. 2 and fig. 5, each wind-collecting cover 106 is provided with a plurality of air exhaust ducts 400 for fully improving the air-extracting efficiency. Further, the arrangement position of the exhaust duct 400, the arrangement position of the air supply duct 300, and the arrangement position of the spray base 200 are staggered from each other in the spatial position along the conveying direction, specifically, referring to fig. 2, the spray base 200 is located on both sides of the air collecting cover 106, and the air supply duct 300 is set to be located between the spray base 200 and the exhaust duct 400.

According to the arrangement position of the embodiment of the application, the water mist sprayed by the spraying seat 200 and the cooling air sent by the air supply pipeline 300 can be quickly discharged by the exhaust pipeline 400 along the air supply direction, so that the heat is fully prevented from being diffused to the environment where the cooling production line is located, and the arrangement mode is favorable for improving the waste heat recovery efficiency and the cooling effect.

In some embodiments of the present application, referring to fig. 1, a second bracket 109 is disposed above the roller way 10, and the suction duct 108 is detachably disposed on the second bracket 109.

Obviously, the second bracket 109 is used for bearing the weight of the draft duct 108 and the sinking force of the wind collecting cover 106, and the installation stability of the wind collecting cover 106 can be sufficiently improved.

In some embodiments of the present application, please refer to fig. 1, fig. 4 and fig. 5, a locking bolt 111 connected to the side wall of the roller table 10 is disposed at the lower end edge of the wind-collecting cover 106 for realizing the detachable installation of the wind-collecting cover 106.

In some embodiments of the present application, please refer to fig. 1, fig. 4, and fig. 5 together, two side walls of the air-collecting cover 106 connected to the roller table 10 are provided with a plurality of barrier strips 107 and a plurality of rows of through holes 500, when the air-collecting cover is not shielded, two ends of each through hole 500 are normally exposed at the inner side and the outer side of the air-collecting cover 106, and meanwhile, the length of the barrier strip 107 is adapted to the length of the region where each row of through holes 500 is located, when the barrier strip 107 is required to correspondingly cover a corresponding row of through holes 500, a plurality of bolts or screws connected to the row of through holes 500 are uniformly inserted into the barrier strip 107, so as to achieve detachable installation of the barrier strip 107.

Obviously, the air collection cover 106 in this embodiment can communicate the inside and the outside of the air collection cover 106 through the multiple rows of through holes 500, and the number of the through holes 500 can be changed by disassembling and assembling the barrier bars 107, thereby realizing the control of the communication state.

It is understood that the specific setting of the communication state here depends on the ambient temperature. For example, in cold winter season or in cloudy and cold rainy days, the environment temperature of the whole cooling production line is low, and the open number of the through holes 500 can be increased by removing the barrier bars 107, so that the cooling efficiency of the loose rolls 110 can be improved and the energy consumption can be reduced by virtue of the low environment temperature. And when hot summer and high temperature weather, the heat diffusion in the wind-collecting cover 106 can make ambient temperature rise sharply when the environment that the cooling production line was located to the environment on the contrary, is unfavorable for the further of cooling work to be gone on, so can install blend stop 107 this moment and whole or partial cover through-hole 500 to fully avoid the heat diffusion to get into in the production environment.

By combining the above embodiments, the cooling line for high-speed wire rods of the present application can change the working state of the whole cooling line by controlling and adjusting parameters such as the wind power and the wind volume of the fan 104, the spraying volume of the spraying device 105, and the wind pumping force of the air pumping pipeline 108, and substantially affect the cooled loose coils 110, so that it is also considered that related parameter control is written into the control system, so as to automatically adjust the whole production process in an automated manner.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A cooling production line of high-speed wire rod characterized by, includes:

the roller way is used for conveying the loose rolls along the conveying direction;

the plurality of cooling working areas are distributed along the conveying direction in sequence corresponding to the roller way, and the cooling intensity of the plurality of cooling working areas is reduced along the conveying direction in sequence;

the plurality of groups of fans are arranged in one-to-one correspondence with the plurality of cooling working areas; and

and the spraying device at least acts on the first cooling working area which is distributed in sequence along the conveying direction.

2. The cooling line for high-speed wire rods according to claim 1, wherein the spraying device is located above the roller table and acts on the feeding end and/or the discharging end of the cooling work area.

3. The cooling production line of the high-speed wire rods as claimed in claim 2, wherein the spraying device is provided with a spraying seat and a plurality of first spray heads at the feeding end and/or the discharging end of the cooling working area, and the plurality of first spray heads are uniformly distributed on one surface, facing the roller way, of the spraying seat.

4. The cooling production line of high-speed wires according to claim 1, wherein each of the fans is provided with an air supply duct, and the delivery end of the air supply duct is positioned below the roller table.

5. The cooling line for high-speed wire rods according to claim 4, wherein the delivery end of part of the air supply duct is provided with a second spray head.

6. The cooling line for high-speed wire rods according to claim 5, wherein the delivery end of the air supply duct is disposed obliquely toward the roller table.

7. The cooling line for high-speed wire rods according to any one of claims 4 to 6, wherein a plurality of flow deflectors are uniformly arranged on the inner side wall of the delivery end of the air supply duct in the circumferential direction, and each flow deflector extends in the axial direction of the air supply duct.

8. The cooling line for high-speed wire rods according to claim 1, further comprising:

the air collecting cover is arranged at the upper end of the roller way and is connected with the air draft pipeline.

9. The cooling line for high-speed wire rods according to claim 8, wherein the first two cooling work areas distributed in the conveying direction are provided with the air collection hoods.

10. The cooling line for high-speed wire rods according to claim 8 or 9, wherein each of the air collection hoods is provided with a plurality of air exhaust ducts.

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