Hot-rolled coil quenching treatment equipment

Abstract

The utility model discloses hot-rolled coil quenching treatment equipment, and mainly relates to the field of hot-rolled coil quenching equipment. Comprising a traction guide mechanism and a cold liquid spraying mechanism, and the cold liquid spraying mechanism is arranged on the inner side of the traction guide mechanism; the traction guide mechanism comprises a guide shell and a guide roller, a driving rotating shaft is arranged on the outer side of the guide shell in a matched mode, and the guide roller is arranged at the opening end of the guide shell in an axially rotating mode; and after the hot-rolled part is in contact with the guide roller of the traction guide mechanism, the guide roller drives the hot-rolled part to be close to the cold liquid spraying mechanism. The cold liquid quenching device has the beneficial effects that the front and back quenching treatment task of the hot-rolled coil can be realized, after the oxide skin of the hot-rolled coil is removed, the rolled hot-rolled coil is directly subjected to cold liquid quenching operation, and meanwhile, a certain tensile force is ensured during quenching, so that the hot-rolled coil obtained by quenching has better mechanical properties.

Description

Technical Field

[0001] The utility model relates to the field of hot rolled coil quenching equipment, in particular to hot rolled coil quenching treatment equipment. Background Art

[0002] Most of the existing steel coil quenching equipment performs overall quenching on the entire hot-rolled coil to meet the quenching requirements of the hot-rolled coil. However, this method can only be achieved after the entire hot-rolled coil is rolled. In addition, during rolling, the quenching effect of some rolling positions is poor due to the overall quenching, so that the local rolling of the hot-rolled coil cannot meet the specified quenching requirements, and thus the mechanical properties of the steel coil cannot be effectively achieved.

[0003] After the rolling mechanism rolls the steel plate, it will continue to move toward the subsequent processing equipment following the traditional conveying mechanism. However, at this time, the hot-rolled coil is thinner and has a high plasticity. Therefore, in the subsequent conveying task, the coil cannot be smoothly transported. At the same time, because the hot-rolled coil needs to be quenched after extrusion rolling, the hot-rolled coil itself needs to maintain a certain tension during the quenching operation, so that the hot-rolled coil after quenching can maintain a certain tension state to meet the use requirements of the hot-rolled coil. Moreover, an oxide scale will form on the surface of the hot-rolled coil after calcination, which will also affect the mechanical properties of the hot-rolled coil after quenching.

[0004] Therefore, based on the above problems, a hot-rolled coil quenching treatment equipment is needed, which can realize the quenching treatment tasks before and after the hot-rolled coil. After the oxide scale of the hot-rolled coil is removed, the rolled hot-rolled coil is directly subjected to cold liquid quenching operation. At the same time, a certain tension force is guaranteed during quenching, thereby ensuring that the quenched hot-rolled coil has better mechanical properties. Utility Model Content

[0005] The utility model aims to provide a hot-rolled coil quenching treatment equipment, which can realize the quenching treatment tasks before and after the hot-rolled coil. After the oxide scale of the hot-rolled coil is removed, the hot-rolled coil that has been rolled is directly subjected to cold liquid quenching operation, and a certain tension force is guaranteed during quenching, thereby ensuring that the hot-rolled coil obtained by quenching has better mechanical properties.

[0006] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical solutions:

[0007] A hot rolled coil quenching treatment equipment comprises a traction guide mechanism and a cold liquid spraying mechanism, wherein the cold liquid spraying mechanism is arranged at the inner side of the traction guide mechanism; the traction guide mechanism comprises a guide shell and a guide roller, a driving shaft is arranged on the outer side of the guide shell, and the guide roller is axially rotatably arranged at the open end of the guide shell; when the hot rolled piece contacts the guide roller of the traction guide mechanism, the guide roller drives the hot rolled piece to approach the cold liquid spraying mechanism, and the cold liquid is sprayed on the hot rolled piece through the cold liquid spraying mechanism.

[0008] An angular velocity sensor is provided between the guide roller and the rotating shaft of the guide housing, and the angular velocity sensor is connected to a driving shaft connected to the outside of the guide housing, and data feedback is performed between the driving shaft.

[0009] A rotating base is arranged at both ends of the inner side of the guide housing, and the rotating shafts at both ends of the guide roller are mounted on the rotating base, and the guide roller is rotated relative to the rotating base through a bearing.

[0010] A pressure sensor is provided at the position where the rotating base and the guide housing are mounted, and the pressure information applied by the rotating base to the pressure sensor is detected by the pressure sensor.

[0011] The cooling liquid spraying mechanism comprises an impact spraying mechanism and a quenching spraying mechanism. The impact spraying mechanism is arranged at the front end of the rolling mechanism; and the quenching spraying mechanism is arranged at the rear end of the rolling mechanism.

[0012] The impact spraying mechanism includes an impact spraying base and an impact spraying member. The impact spraying member is arranged on the impact spraying base, and the hot-rolled coil is impact-sprayed through the impact spraying member; the impact spraying member includes a pre-spraying port and a rear-end spraying port. When the hot-rolled coil passes through the impact spraying mechanism, the pre-spraying port sprays the hot-rolled coil and then transports it to the rear-end spraying port position.

[0013] The pre-spraying port comprises a plurality of spiral atomizing nozzles, which are arranged on the impact spraying base, and each of the spiral atomizing nozzles is individually connected to a delivery pipeline, through which the cold liquid is delivered to the position of the spiral atomizing nozzle and then sprayed out.

[0014] The rear end spray outlet is a slit spray outlet, and a water distribution and conveying shell is connected to the rear end of the slit spray outlet; a plurality of water outlets are arranged at the connection position between the water distribution and conveying shell and the slit spray outlet, and the water distribution and conveying shell is connected to a cold liquid inlet pipe, and when the cold liquid enters the water distribution and conveying shell, it flows out from the plurality of water outlets of the water distribution and conveying shell and enters the inside of the slit spray outlet at the same time.

[0015] The impact spraying base is connected with a rotating mechanism, and the tilting direction of the impact spraying base is adjusted by the rotating mechanism.

[0016] The quenching spray mechanism includes a quenching spray base and a quenching spray member, the quenching spray member is arranged on the quenching spray mechanism, and the hot-rolled coil is quenched by the quenching spray member; the quenching spray member includes a plurality of cold liquid spray ports, and the plurality of cold liquid spray ports are arranged in a close fit on the quenching spray base, and each of the cold liquid spray ports is connected to a cold liquid delivery pipeline, and the hot-rolled coil is quenched after the cold liquid is delivered to the cold liquid spray port through the cold liquid delivery pipeline.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] By setting up this device, the hot-rolled coils before and after rolling can be processed. Because oxide scale will be formed on the surface of the hot-rolled coil after calcination, the impact spraying mechanism can realize the cleaning operation of the oxide scale to avoid the oxide scale affecting the normal quenching operation of the subsequent hot-rolled coils; and after the oxide scale of the hot-rolled coils is removed, the traction guide mechanism is set to cooperate with the quenching structure assembly to effectively quench the hot-rolled coils at the first time, and ensure that the hot-rolled coils have a certain tension during quenching. At the same time, the hot-rolled coils are pulled and guided by the traction guide mechanism, so that the cold liquid can be effectively sprayed on the hot-rolled coils, thereby meeting the requirements for the mechanical properties of the hot-rolled coils after quenching. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Attached Figure 1 It is a schematic diagram of the structure of the utility model.

[0020] Attached Figure 2 It is a structural schematic diagram of the impact spraying mechanism of the utility model.

[0021] Attached Figure 3 It is a partial structural schematic diagram of the impact spraying mechanism of the utility model.

[0022] Attached Figure 4 It is a cross-sectional view of the impact spraying mechanism of the utility model.

[0023] Attached Figure 5 It is a structural schematic diagram of the traction and guiding mechanism of the utility model.

[0024] Attached Figure 6 It is a partial structural schematic diagram of the traction and guiding mechanism of the utility model.

[0025] Attached Figure 7 It is a structural schematic diagram of the quenching spraying mechanism of the utility model.

[0026] Numbers shown in the accompanying drawings:

[0027] 1. Guide shell; 2. Guide roller; 3. Drive shaft; 4. Angular velocity sensor; 5. Rotating base; 6. Pressure sensor; 7. Impact spray mechanism; 8. Quenching spray mechanism; 9. Impact spray base; 10. Impact spray member; 11. Pre-spray port; 12. Rear spray port; 13. Spiral atomizing nozzle; 14. Slit spray port; 15. Water distribution and conveying shell; 16. Water outlet; 17. Quenching spray base; 18. Quenching spray member; 19. Cold liquid spray port. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with 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. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the present application.

[0029] A hot rolled coil quenching treatment equipment includes a traction guide mechanism and a cold liquid spraying mechanism, wherein the cold liquid spraying mechanism is arranged at the inner side of the traction guide mechanism; the traction guide mechanism includes a guide housing 1 and a guide roller 2, wherein a driving shaft 3 is arranged on the outer side of the guide housing 1, and the guide roller 2 is axially rotatably arranged at the open end of the guide housing 1; when the hot rolled piece contacts the guide roller 2 of the traction guide mechanism, the guide roller 2 drives the hot rolled piece to approach the cold liquid spraying mechanism, and the cold liquid spraying mechanism sprays the hot rolled piece with cold liquid. The traction guide mechanism is used to traction and guide the hot rolled coil after rolling, so as to ensure that the hot rolled coil can be transported smoothly and stably, thereby ensuring that the hot rolled coil can be effectively quenched; the cold liquid spraying mechanism is used to perform cold liquid treatment on the hot rolled coil, so as to ensure that the hot rolled coil can achieve the best quenching effect, thereby meeting the quenching requirements of hot rolled coil production.

[0030] Traction guide mechanism:

[0031] The production and processing of hot-rolled coils requires a rolling mechanism to extrude and roll the calcined steel plates. After the rolling mechanism rolls the steel plates, the hot-rolled coils need to be quenched. However, under normal circumstances, after the rolling mechanism rolls the steel plates, it will continue to move toward the subsequent processing equipment following the traditional conveying mechanism. However, at this time, the hot-rolled coils are thinner and have high plasticity. Therefore, in the subsequent conveying tasks, there will be a problem that the coils cannot be smoothly transported. At the same time, because the hot-rolled coils after extrusion rolling need to be quenched, and when the hot-rolled coils are quenched, the hot-rolled coils themselves need to maintain a certain tension, so that the hot-rolled coils after quenching maintain a certain tension state to meet the use requirements of the hot-rolled coils. Therefore, the following is a specific structural setting of the traction guide mechanism:

[0032] The traction guide mechanism includes a guide shell 1 and a guide roller 2. A driving shaft 3 is provided on the outer side of the guide shell 1, and the guide roller 2 is axially rotatably arranged at the open end of the guide shell 1. Here, the guide shell 1 is first connected by the driving shaft 3, and the main body inclination angle of the guide shell 1 can be adjusted by the driving shaft 3. At the same time, the guide roller 2 is arranged at the open end of the guide shell 1, so that after the rolling mechanism rolls the steel plate, it contacts the guide roller 2, and the hot-rolled coil after rolling is guided and pulled by the guide roller 2. When setting here, the guide shell 1 is driven to rotate by the driving shaft 3, so that there is an effective force between the guide roller 2 and the hot-rolled coil. Therefore, the following issues need to be considered here:

[0033] 1. It is necessary to ensure that the force between the hot-rolled coil and the guide roller 2 supports the traction of the hot-rolled coil on the guide roller 2. Because only when the force between the guide roller 2 and the hot-rolled coil is greater than the specified value, can the technical problem of no slipping between the guide roller 2 and the hot-rolled coil be ensured. If the force between the guide roller 2 and the hot-rolled coil is less than a certain value, the friction between the guide roller 2 and the hot-rolled coil will not allow the synchronous displacement between the two, which will cause the hot-rolled coil to slip relative to the guide roller 2, which is not conducive to the guide roller 2 to pull the hot-rolled coil.

[0034] 2. It is necessary to ensure that the force between the hot-rolled coil and the guide roller 2 is less than a certain value. It should be understood that because the temperature of the hot-rolled coil itself is still relatively high after calcination, the plasticity of the hot-rolled coil is still relatively large in this case. Therefore, when quenching the hot-rolled coil, keeping the hot-rolled coil at a certain tension can better achieve the quenching performance of the hot-rolled coil. When the guide roller 2 pulls the hot-rolled coil, if there is no certain force between the two, the hot-rolled coil will not be able to be maintained in a certain tension state. At the same time, if the force applied by the guide roller 2 to the hot-rolled coil is too large, the hot-rolled coil will be over-pulled, so that the hot-rolled coil itself is pulled and stretched under the action of a large pulling force, thereby changing the shape and length of the hot-rolled coil, and cannot meet the subsequent quenching requirements of the hot-rolled coil.

[0035] Therefore, the following structure is set up to solve the above problems:

[0036] An angular velocity sensor 4 is provided between the guide roller 2 and the rotating shaft of the guide housing 1, and the angular velocity sensor 4 is connected to the driving shaft 3 connected to the outside of the guide housing 1, and data feedback is performed between the driving shaft 3. After the angular velocity sensor 4 is provided at the rotating shaft position of the guide roller 2 and the guide housing 1, it is possible to judge whether the guide roller 2 is in a normal rotation state through the angular velocity sensor 4, because when a slip problem occurs between the guide roller 2 and the hot-rolled coil, the hot-rolled coil cannot effectively drive the guide roller 2 to rotate, so that the angular velocity sensor 4 detects abnormal rotation information of the guide roller 2, and then proves the slip problem between the guide roller 2 and the hot-rolled coil. When the above problem occurs, data feedback is performed between the angular velocity sensor 4 and the driving shaft 3, so that the driving shaft 3 drives the guide housing 1 to rotate, thereby increasing the force between the guide roller 2 and the hot-rolled coil, thereby avoiding the slip problem between the guide roller 2 and the hot-rolled coil, so as to ensure that the guide roller 2 can effectively guide the hot-rolled coil.

[0037] A rotating base 5 is provided at both ends of the inner side of the guide housing 1, and the two ends of the guide roller are mounted on the rotating base 5, and the guide roller is rotated relative to the rotating base 5 through a bearing; a pressure sensor 6 is provided at the position where the rotating base 5 and the guide housing 1 are mounted, and the pressure information applied by the rotating base 5 to the pressure sensor 6 is detected by the pressure sensor 6. Figure 6As shown, the rotating base 5 is arranged in conjunction with the pressure sensor 6, so that the guide roller 2 can monitor the pressure value of the guide shell 1; under normal circumstances, the hot-rolled coil will exert a force on the guide roller 2, so that the guide roller 2 rotates following the movement of the hot-rolled coil, and when the driving shaft 3 drives the guide shell 1 to rotate, the relative position between the guide roller 2 and the hot-rolled coil changes, thereby causing the relative force between the guide roller 2 and the hot-rolled coil to change.

[0038] It should be noted here that if only the structure of the pressure sensor 6 is set up without the angular velocity sensor 4, in this case, the force between the hot-rolled coil and the guide roller 2 will be within the specified range, but there will be a relative slip problem between the guide roller 2 and the hot-rolled coil (that is, the guide roller 2 is locked and cannot effectively rotate following the movement of the hot-rolled coil). Therefore, it is necessary to set the angular velocity sensor 4 and the pressure sensor 6 separately here to ensure that the guide roller 2 effectively pulls and guides the hot-rolled coil.

[0039] Coolant spray mechanism:

[0040] For the traditional hot-rolled coil quenching operation, it is necessary to quench the rolled hot-rolled coil after the hot-rolled coil has completed the rolling task as a whole, so the hot-rolled coil quenching production line needs to be set to a longer length to meet the quenching requirements of a whole hot-rolled coil. This traditional hot-rolled coil quenching production line uses a conveying device to convey a whole hot-rolled coil to the bottom of the sprayed cold liquid, and sprays the cold liquid on the hot-rolled coil to achieve the quenching operation of the hot-rolled coil. However, the space occupied by this production line is very large, because the length of a whole hot-rolled coil can reach 100 meters, so the price of this equipment is also relatively high. And when spraying the cold liquid, in order to ensure the effective coverage of the quenching cold liquid, multiple cold liquid spraying positions will be set, but this quenching method requires a large amount of quenching cold liquid to be sprayed at the same time to ensure the effective coverage of the quenching cold liquid on the hot-rolled coil, which makes it difficult to recover the cold liquid.

[0041] Before the cold liquid spraying mechanism is used, a technical problem needs to be considered: because the overall temperature of the hot-rolled coil will be at a high state after calcination, so that the hot-rolled coil meets the heat treatment requirements of the steel coil. Because the steel coil will come into contact with oxygen in the air during calcination and subsequent extrusion rolling operations, in this case, the surface of the hot-rolled coil at a high temperature will come into contact with oxygen, so that an oxide layer, that is, iron oxide, is formed on the surface of the steel coil, but the iron oxide formed does not meet the requirements of subsequent quenching, because the quenching operation of the oxide layer cannot make the hot-rolled coil achieve the best quenching performance, so that the hot-rolled coil after quenching does not meet the production requirements. Moreover, the oxidizing physical properties of the iron formed on the surface of the hot-rolled coil are poor, and it is difficult to remove the oxide scale after the temperature of the hot-rolled coil is lowered, so it is necessary to remove the oxide layer when the temperature of the steel coil is high and before quenching, so that the hot-rolled coil can achieve the best quenching effect.

[0042] In this regard, the specific structure of the cooling liquid spraying mechanism is as follows:

[0043] The cold liquid spraying mechanism includes an impact spraying mechanism 7 and a quenching spraying mechanism 8. The impact spraying mechanism 7 is arranged at the front end of the rolling mechanism; and the quenching spraying mechanism 8 is arranged at the rear end of the rolling mechanism. Here, the impact spraying mechanism 7 is arranged at the front end of the rolling mechanism, and the oxide scale on the hot-rolled coil is removed before the hot-rolled coil is extruded and rolled, so as to avoid the oxide scale being extruded and rolled into the inner layer of the hot-rolled coil after extrusion and rolling, which makes it inconvenient to clean the oxide scale of the hot-rolled coil again. The quenching spraying mechanism 8 is arranged at the rear end of the rolling mechanism to ensure that the hot-rolled coil is sprayed with cold liquid by the quenching spraying mechanism 8 as soon as possible after the hot-rolled coil is extruded and rolled, so as to quickly realize the quenching operation of the hot-rolled coil. Therefore, different structural settings are required for the above two different spraying mechanisms to achieve the setting requirements of the cold liquid spraying mechanism:

[0044] Impact spray mechanism 7:

[0045] Because the oxide scale formed on the surface of the hot-rolled coil after calcination is in an attached state, it mainly consists of ferrous oxide, ferroferric oxide, and ferrous oxide. From the inside to the outside: ferrous oxide, ferroferric oxide, and ferrous oxide. Among them, ferrous oxide has a loose structure and a weaker protective effect, while ferric oxide and ferrous oxide have a dense structure and better protective properties. Therefore, the connection between the oxide scale and the hot-rolled coil body is ferrous oxide. Because its structure is loose and its protective effect is weak, the oxide scale can be easily removed under the action of external force, thereby achieving the task of removing the outer oxide scale of the hot-rolled coil after calcination. Therefore, based on the characteristics of the above-mentioned hot-rolled coil oxide scale, the following structure is set:

[0046] The impact spray mechanism 7 includes an impact spray base 9 and an impact spray member 10. The impact spray member 10 is arranged on the impact spray base 9, and the hot-rolled coil is impact-sprayed by the impact spray member 10. The purpose of the impact spray base 9 is to install the impact spray member 10. At the same time, because the oxide scale on the hot-rolled coil needs to be impacted, after the impact spray member 10 is installed on the impact spray base 9, the impact spray direction of the impact spray member 10 should be opposite to the moving direction of the hot-rolled coil, so that the sprayed liquid can effectively act on the hot-rolled coil, so that the oxide scale on the hot-rolled coil can be effectively removed. The impact spraying member 10 is suitable for impact spraying the oxide scale on the hot-rolled coil. It should be considered that although the protective effect of the loose structure of ferrous oxide is weak, the hot-rolled coil will not obviously show the problem of loose structure before being subjected to external force. At the same time, because the temperature of the hot-rolled coil after calcination is high, it is not easy to amplify the problem of loose structure of ferrous oxide in this case, so the impact spraying member 10 is set as follows:

[0047] The impact spraying member 10 includes a pre-spraying port 11 and a rear-end spraying port 12. When the hot rolled coil passes through the impact spraying mechanism 7, the pre-spraying port 11 sprays the hot rolled coil and then transports it to the rear-end spraying port 12. When setting up here, the impact spraying member 10 is prevented from directly spraying and impacting the hot rolled coil, but the pre-spraying port 11 and the rear-end spraying port 12 are set. When the calcined steel plate (the hot rolled coil before calcination) passes through the impact spraying member 10, the pre-spraying port 11 first sprays the calcined steel plate with cold liquid, so that the steel plate at a relatively high temperature is cooled down. Because the oxide scale on the outer layer of the steel plate first contacts the cold liquid, the oxide scale at this time is cooled and shrunk, so that the ferrous oxide is loose, and cracks or even separation occurs between the oxide scale and the steel plate body. After the steel plate is sprayed with cold liquid through the pre-spraying port 11, it reaches the rear-end spraying port 12. At this time, the oxide scale on the outer layer of the steel plate has shown cracking. After passing through the impact spraying through the rear-end spraying port 12 again, it is easier to impact and fall off the oxide scale on the steel plate, thereby ensuring a better oxide scale falling effect.

[0048] Regarding the specific structural setting of the pre-spraying port 11: the pre-spraying port 11 includes a plurality of spiral atomizing nozzles 13, and the plurality of spiral atomizing nozzles 13 are arranged on the impact spraying base 9, and each of the spiral atomizing nozzles is individually connected to a delivery pipeline, and the cold liquid is delivered to the position of the spiral atomizing nozzle 13 through the delivery pipeline and then sprayed out; because the pre-spraying port 11 is mainly used to pre-cool the calcined steel plate, so that the oxide scale is cracked by cooling, and because the spraying range required by the pre-spraying port 11 should be wider, the oxide scale on the surface of the steel plate is pre-cooled in a larger range. Therefore, the spiral atomizing nozzle 13 is set here, and each spiral atomizing nozzle 13 is individually connected to a delivery pipeline, so as to cool the steel plate in a larger range, and the atomized spraying cold liquid forms a covering and superimposed spraying effect, thereby ensuring that the oxide scale on the surface of the steel plate is effectively pre-cooled and cracked, so as to facilitate the subsequent rear-end spraying port 12 to clean the oxide scale on the steel plate.

[0049] Regarding the specific structural setting of the rear end spray port 12: the rear end spray port 12 is a slit spray port 14, and the rear end of the slit spray port 14 is connected to a water distribution and conveying shell 15; because the required rear end spray port 12 needs to be applied to the steel plate with a large force, so as to impact the oxide scale on the surface of the steel plate, so that the oxide scale on the surface of the steel plate is impacted and falls off; so the slit spray port 14 is set here, when the liquid is transported to the inside of the slit spray port 14, the liquid is squeezed in the slit spray port 14, so that the kinetic energy of the liquid is converted into potential energy, and when the liquid reaches the position of the slit spray port 14, the pressure is released at the moment of spraying outward through the slit spray port 14, so that the potential energy of the liquid is converted into kinetic energy, and then the oxide scale on the steel plate is impacted at a high speed, so that the oxide scale is more likely to fall off after being impacted at a high speed. At the same time, in order to increase the spraying flow rate, a plurality of water outlets 16 are provided at the connection position between the water distribution and conveying shell 15 and the slit spraying port 14, and the water distribution and conveying shell 15 is connected to the cold liquid inlet pipe. When the cold liquid enters the water distribution and conveying shell 15, it flows out from the plurality of water outlets 16 of the water distribution and conveying shell 15 and enters the inside of the slit spraying port 14 at the same time; the water flow in the water distribution and conveying shell 15 can flow outward at the plurality of water outlets 16 and squeeze into the slit spraying port 14 at the same time, thereby further increasing the potential energy in the slit spraying port 14, so that the liquid sprayed at the slit spraying port 14 has a larger flow rate and effectively acts on the oxide scale position of the steel plate.

[0050] The impact spray base 9 is connected with a rotating mechanism, and the tilting direction of the impact spray base 9 is adjusted by the rotating mechanism. Because the direction of the impact spray base 9 needs to be opposite to the moving direction of the hot-rolled coil, the angle of the impact spray base 9 is adjusted by setting the rotating mechanism, that is, the tilting angle of the impact spray member 10 is adjusted, so that the liquid sprayed by the impact spray member 10 can effectively act on the hot-rolled coil.

[0051] Quenching spray mechanism 8:

[0052] Because the quenching spray mechanism 8 needs to make the quenching liquid effectively act on the hot-rolled coil, the quenching spray mechanism 8 includes a quenching spray base 17 and a quenching spray member 18. The quenching spray member 18 is arranged on the quenching spray mechanism 8, and the hot-rolled coil is quenched by the quenching spray member 18; the quenching spray member 18 includes a plurality of cold liquid spraying ports 19, and the plurality of cold liquid spraying ports 19 are arranged on the quenching spray base 17, and each of the cold liquid spraying ports 19 is connected to a cold liquid delivery pipeline. After the cold liquid is delivered to the cold liquid spraying port 19 through the cold liquid delivery pipeline, the hot-rolled coil is quenched. Because the cold liquid spray mechanism directly sprays the cold liquid on the hot-rolled coil after the rolling mechanism rolls the steel plate to generate the hot-rolled coil, the plurality of cold liquid spraying ports 19 can ensure that the quenching liquid effectively acts on the hot-rolled coil to ensure the quenching effect of the hot-rolled coil.

[0053] Therefore, a hot-rolled coil quenching treatment equipment can realize the quenching treatment tasks before and after the hot-rolled coil. After the oxide scale of the hot-rolled coil is removed, the hot-rolled coil that has been rolled is directly subjected to cold liquid quenching operation. At the same time, a certain tension force is guaranteed during quenching, thereby ensuring that the hot-rolled coil obtained by quenching has better mechanical properties.

Claims

1. A hot rolled coil quenching treatment equipment, characterized in that: It includes a traction guide mechanism and a cold liquid spraying mechanism, wherein the cold liquid spraying mechanism is arranged at the inner side of the traction guide mechanism; The traction guide mechanism comprises a guide housing (1) and a guide roller (2); a driving shaft (3) is provided on the outer side of the guide housing (1), and the guide roller (2) is axially rotatably arranged at the opening end of the guide housing (1); When the hot rolled piece contacts the guide roller (2) of the traction guide mechanism, the guide roller (2) drives the hot rolled piece to approach the cold liquid spraying mechanism, and the cold liquid spraying mechanism sprays the hot rolled piece with cold liquid.

2. The hot rolled coil quenching treatment equipment according to claim 1, characterized in that: An angular velocity sensor (4) is provided on the guide roller (2) and is connected to the rotating shaft of the guide housing (1). The angular velocity sensor (4) is connected to a driving shaft (3) connected to the outside of the guide housing (1) and data feedback is performed between the driving shaft (3).

3. The hot rolled coil quenching treatment equipment according to claim 2, characterized in that: A rotating base (5) is provided at both ends of the inner side of the guide housing (1); the rotating shafts at both ends of the guide roller (2) are mounted on the rotating base (5); and the rotation of the guide roller (2) relative to the rotating base (5) is achieved through a bearing.

4. The hot rolled coil quenching treatment equipment according to claim 3, characterized in that: A pressure sensor (6) is provided at the position where the rotating base (5) and the guide housing (1) are mounted, and the pressure information applied by the rotating base (5) to the pressure sensor (6) is detected by the pressure sensor (6).

5. A hot rolled coil quenching treatment equipment according to claim 1 or 4, characterized in that: The cold liquid spraying mechanism comprises an impact spraying mechanism (7) and a quenching spraying mechanism (8); the impact spraying mechanism (7) is arranged at the front end position of the rolling mechanism; and the quenching spraying mechanism (8) is arranged at the rear end position of the rolling mechanism.

6. The hot rolled coil quenching treatment equipment according to claim 5, characterized in that: The impact spraying mechanism (7) comprises an impact spraying base (9) and an impact spraying member (10), wherein the impact spraying member (10) is arranged on the impact spraying base (9), and the impact spraying member (10) is used to impact spray the hot rolled coil; The impact spraying member (10) comprises a pre-spraying port (11) and a rear-end spraying port (12). When the hot-rolled coil passes through the impact spraying mechanism (7), the pre-spraying port (11) sprays the hot-rolled coil and then transports the hot-rolled coil to the rear-end spraying port (12).

7. The hot rolled coil quenching treatment equipment according to claim 6, characterized in that: The pre-spraying port (11) comprises a plurality of spiral atomizing nozzles (13), the plurality of spiral atomizing nozzles (13) being arranged in an array on the impact spraying base (9), and each of the spiral atomizing nozzles (13) being individually connected to a delivery pipeline, through which the cold liquid is delivered to the position of the spiral atomizing nozzle (13) and then sprayed out.

8. The hot rolled coil quenching treatment equipment according to claim 7, characterized in that: The rear end spraying port (12) is a slit spraying port (14), and the rear end of the slit spraying port (14) is connected to a water distribution and conveying housing (15); A plurality of water outlets (16) are provided at the connection position between the water distribution and conveying housing (15) and the slit spraying outlet (14), and the water distribution and conveying housing (15) is connected to a cold liquid inlet pipe. When the cold liquid enters the water distribution and conveying housing (15), it flows out from the plurality of water outlets (16) of the water distribution and conveying housing (15) and simultaneously enters the interior of the slit spraying outlet (14).

9. The hot rolled coil quenching treatment equipment according to claim 8, characterized in that: The impact spraying base (9) is connected to a rotating mechanism, and the tilting direction of the impact spraying base (9) is adjusted by the rotating mechanism.

10. The hot rolled coil quenching treatment equipment according to claim 5, characterized in that: The quenching spray mechanism (8) comprises a quenching spray base (17) and a quenching spray member (18), wherein the quenching spray member (18) is arranged on the quenching spray mechanism (8), and the hot-rolled coil is quenched by the quenching spray member (18); The quenching spraying member (18) comprises a plurality of cold liquid spraying ports (19), the plurality of cold liquid spraying ports (19) being arranged in close contact with the quenching spraying base (17), and each of the cold liquid spraying ports (19) being connected to a cold liquid delivery pipeline, and after the cold liquid is delivered to the cold liquid spraying port (19) through the cold liquid delivery pipeline, the hot rolled coil is quenched.

Images