A controlled rolling cooling device for rolled steel bars

Abstract

The present invention relates to a controlled rolling cooling device for rolled steel bars, belonging to the technical field of rolled steel bar processing. It comprises a bottom plate for supporting and installing the entire cooling device; a cooling seat is arranged on the top of the bottom plate, and is used for water cooling the transported rolled steel bars, and a through groove for water storage is provided on the top of the cooling seat. The present invention arranges an initial cooling groove and a second-stage cooling groove on the cooling seat, and the hot water in the second-stage cooling groove flows into the water storage chamber, and the water in the water storage chamber is sprayed out from the water spray head through a water pump to pre-cool the bars, which can not only greatly improve the cooling effect on the bars, but also make full use of the hot water, thereby improving the energy utilization rate and reducing the overall energy consumption; by starting the push cylinder to drive the cooling seat to move back and forth, the sleeve can also be driven to rotate back and forth at the same time, so as to accelerate the flow and mixing between the cooling water and the hot water, thereby further improving the cooling effect on the bars.

Description

Technical Field

[0001] The invention belongs to the technical field of rolled steel bar processing and relates to a controlled rolling cooling device for rolled steel bars. Background Art

[0002] The steel rolling process refers to the process of changing the shape of the steel billet by pressure processing the steel ingot between the rotating rollers. The purpose of steel rolling is similar to other pressure processing, on the one hand to obtain the desired shape, and on the other hand to improve the internal quality of the steel. In the rolling production of rolled steel bars, a controlled cooling device is required, and a water cooling device is usually used to cool the bars. Through water cooling during steel rolling, the temperature and heat treatment process of the steel can be changed, the phase change and organizational structure adjustment of the steel can be promoted, the mechanical properties and strength of the steel can be improved, and the surface of the steel can be cleaned and rusted. Water cooling during steel rolling can not only cool ordinary carbon steel, but also various steels of different materials, such as alloy steel, stainless steel, carburizing steel, etc. Water cooling during steel rolling is not only widely used in the steel industry, but also widely used in various fields such as automobiles, aviation, shipbuilding, and construction.

[0003] Commonly used water-penetrating cooling methods include sleeve type and turbulent tube type. Although the turbulent tube type has high cooling intensity, the inner cavity design is difficult to master, and it is easy to produce uneven cooling and difficult to control. Therefore, sleeve cooling is mostly used at present. It usually adopts continuous injection of cooling water in a cooling tank. The rolled steel bar is cooled by cooling water, and the heat exchange water continuously flows back to the cooling tower for re-cooling. Although this method can cool evenly, the method is simple and easy to control, its cooling intensity is not large and the effect is poor. The water after heat exchange cannot be fully utilized, resulting in energy waste and high consumption. Therefore, we propose a controlled rolling cooling device for rolled steel bars to solve the above-mentioned problems. Summary of the invention

[0004] In view of this, the present invention provides a controlled rolling cooling device for rolled steel bars in order to solve the problems that the traditional sleeve cooling method has low cooling intensity, poor effect, and cannot fully utilize the water after heat exchange, resulting in energy waste and high consumption.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: comprising a bottom plate for supporting and installing the entire cooling device;

[0006] A cooling seat is arranged on the top of the bottom plate and is used for cooling the transported rolled steel bars through water. A through groove for storing water is provided on the top of the cooling seat. A plurality of sleeves are provided in the through groove for guiding and transporting the rolled steel bars. The rolled steel bars can be cooled down by the cold water in the through groove when passing through the sleeves.

[0007] Two groups of support mechanisms are symmetrically fixedly connected to the top two sides of the bottom plate, two fixed plates and two partitions located in the through slot are fixedly connected between the two groups of support mechanisms, the two partitions are symmetrically arranged and located between the two fixed plates, and the two fixed plates are located at the opening edges on both sides of the through slot, the two fixed plates and the two partitions cooperate with the cooling seat to form an independent initial cooling slot and a second stage cooling slot, the initial cooling slot is used for the initial cooling of the rolled steel bar, and the second stage cooling slot is used for the secondary cooling of the rolled steel bar, and the plurality of sleeves pass through the two fixed plates and the two partitions;

[0008] The water delivery mechanism is arranged on two sets of supporting mechanisms, and is used to deliver cooling water to the initial cooling trough and the second stage cooling trough respectively. When the rolled steel bar passes through the inside of the casing, it can be cooled by the inflowing cooling water.

[0009] Furthermore, the support mechanism includes a mounting plate arranged above the cooling seat, and two L-shaped support plates are symmetrically fixedly connected to one side of the mounting plate, and the two L-shaped support plates are fixedly connected to the top of the base plate, and the two fixing plates and two partitions are fixedly connected to the bottom of the two mounting plates.

[0010] Furthermore, both sides of the two fixed plates close to the inner wall of the cooling seat are provided with sliding grooves, and the first sealing slides are sealingly and slidingly connected in the multiple sliding grooves, and one side of the multiple first sealing slides extends outward and is fixedly connected to the inner wall of the cooling seat.

[0011] Furthermore, two second sealing slide plates are symmetrically fixedly connected to the inner walls on both sides of the cooling seat, and the two second sealing slide plates are sealingly slidably connected between the two partitions.

[0012] Furthermore, a push cylinder is fixedly connected to one side of the L-shaped support plate away from the cooling seat, and an output shaft of the push cylinder passes through the L-shaped support plate and is fixedly connected to one side of the cooling seat.

[0013] Furthermore, two guide rods are symmetrically slidably penetrated on one side of the L-shaped support plate, and one end of the two guide rods is fixedly connected to one side of the cooling seat.

[0014] Furthermore, a plurality of rolling wheels are provided at the bottom of the cooling seat, and the plurality of rolling wheels are in rolling contact with the top of the bottom plate.

[0015] Furthermore, the water delivery mechanism includes two first fixed blocks symmetrically fixedly connected to the top of the mounting plate, a same cold water pipe is fixedly connected between the two opposite first fixed blocks, one end of the two cold water pipes passes through one side of the corresponding first fixed block and is fixedly connected to the same U-shaped connecting pipe, and the U-shaped connecting pipe is connected to the pump through a water delivery pipe for delivering cooling water.

[0016] Furthermore, the two cold water pipes are respectively located above one side where the initial cooling trough and the second stage cooling trough are close to each other, and the bottoms of the two cold water pipes are connected with a plurality of down pipes in parallel and at equal distances.

[0017] Furthermore, a drainage cavity and a water storage cavity are provided inside the cooling seat. The drainage cavity is located directly below the initial cooling groove, and the water storage cavity is located directly below the second-stage cooling groove. A first water hole and a second water hole are provided on the side of the cooling seat away from each other. The first water hole is connected to the drainage cavity, and the second water hole is connected to the water storage cavity.

[0018] Furthermore, a drainage pipe connected to the drainage cavity is provided on one side of the cooling seat.

[0019] Furthermore, an inlet water hopper is fixedly connected to one side of the cooling seat near the first water hole, and an outlet water hopper is fixedly connected to one side of the cooling seat near the second water hole. The inlet water hopper and the outlet water hopper are both provided with passage holes for the rolled steel bars to pass through on the side away from the cooling seat.

[0020] Furthermore, a water pump is fixedly connected to the top of the base plate, a water inlet end of the water pump is fixedly connected to a water inlet pipe, the other end of the water inlet pipe is connected to the water storage chamber, and a water outlet end of the water pump is fixedly connected to a water outlet pipe, in order to facilitate the back and forth movement of the cooling seat.

[0021] Furthermore, a second fixed block is fixedly connected to one side of the top of the two mounting plates, a same water pipe is fixedly connected between the two second fixed blocks, one end of the water pipe passes through one side of one of the second fixed blocks and is fixedly connected to one end of the water outlet pipe, a plurality of water pipes are fixedly connected to the outer wall of the water pipe in parallel and equidistant manner, and a plurality of water heads for spraying and cooling the rolled steel bars are fixedly connected to one side of the bottom of the plurality of water pipes in parallel and equidistant manner.

[0022] Furthermore, a water baffle located above the material penetration hole is fixedly connected to the inner wall of the inlet water receiving hopper on one side away from the cooling seat.

[0023] Furthermore, the sleeve includes two rotating tubes, two hollow tubes and a flushing tube. The flushing tube is located in the middle section and simultaneously rotates and seals to pass through the two partitions. The two hollow tubes are respectively integrally formed at both ends of the flushing tube and are respectively located in the initial cooling groove and the second-stage cooling groove. The two rotating tubes are respectively integrally formed at one end of the two hollow tubes away from the flushing tube, and the other ends of the two rotating tubes are respectively sealed and rotated to pass through one side of the two fixed plates and extend outward.

[0024] Furthermore, one end of one of the rotating tubes away from the hollow tube is fixedly sleeved with a gear located in the inlet water receiving bucket, and the interior of the inlet water receiving bucket is fixedly connected with a rack meshing with the gear.

[0025] Furthermore, a same water delivery seat is fixedly connected between the two partitions, and a plurality of flushing pipes are sealed and rotated to penetrate the water delivery seat, a water delivery cavity is opened inside the water delivery seat, and an inner wall of the flushing pipe is located on one side inside the water delivery cavity and is provided with a plurality of high-pressure nozzles connected to the water delivery cavity in a circular shape and at equal intervals.

[0026] Furthermore, a cold water connecting pipe communicating with the water delivery cavity is fixedly connected through the top of the water delivery seat, and one end of the cold water connecting pipe is connected to a pump through a water delivery pipeline for delivering cooling water.

[0027] The beneficial effects of the present invention are:

[0028] The present invention arranges an initial cooling groove and a second-stage cooling groove on a cooling seat, and the interior of the cooling seat is also provided with a drainage cavity used in conjunction with the initial cooling groove and a water storage cavity used in conjunction with the second-stage cooling groove. The rod can be preliminarily cooled in the initial cooling groove, and can be flushed and cooled when the rod passes through the flushing pipe, and finally passes through the second-stage cooling groove for second-stage cooling, and the hot water in the second-stage cooling groove flows into the water storage cavity, and the water in the water storage cavity is sprayed out from the sprinkler head through a water pump to pre-cool the rod section before being transported into the sleeve, which can not only greatly improve the cooling effect on the rod, but also make full use of the hot water, thereby improving the energy utilization rate and reducing the overall energy consumption; by starting the pushing cylinder to drive the cooling seat to move back and forth, the sleeve can also be driven to rotate back and forth at the same time, thereby accelerating the flow and mixing between the cooling water and the hot water, thereby further improving the cooling effect on the rod.

[0029] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0031] Figure 1 This is a three-dimensional diagram of the overall structure of a controlled rolling cooling device for rolled steel bars of the present invention;

[0032] Figure 2 A three-dimensional diagram of the overall connection structure of a cooling seat of a controlled rolling cooling device for rolled steel bars of the present invention;

[0033] Figure 3 It is a three-dimensional diagram of the connection structure of the support mechanism and the water delivery mechanism of a controlled rolling cooling device for rolled steel bars of the present invention;

[0034] Figure 4 This is a front cross-sectional view of the overall structure of a controlled rolling cooling device for rolled steel bars of the present invention;

[0035] Figure 5 This is a three-dimensional exploded view of the overall structure of a cooling seat of a controlled rolling cooling device for rolled steel bars of the present invention;

[0036] Figure 6 A three-dimensional cross-sectional view of a cooling seat structure of a controlled rolling cooling device for rolled steel bars of the present invention;

[0037] Figure 7 A three-dimensional diagram of the overall connection structure of the sleeve of a controlled rolling cooling device for rolled steel bars of the present invention;

[0038] Figure 8 A three-dimensional diagram of the connection structure between the sleeve and the water delivery seat of a controlled rolling cooling device for rolled steel bars of the present invention;

[0039] Fig. 9 The present invention is a three-dimensional cross-sectional view of the connection structure between a water delivery seat and a flushing pipe of a controlled rolling cooling device for rolled steel bars.

[0040] Figure numerals: 1, bottom plate; 2, cooling seat; 3, inlet water receiving bucket; 4, L-shaped support plate; 5, first sealing slide plate; 6, mounting plate; 7, pushing cylinder; 8, fixing plate; 81, slide groove; 9, partition plate; 10, second sealing slide plate; 11, initial cooling groove; 12, second stage cooling groove; 13, guide rod; 14, sleeve; 141, rotating tube; 142, hollow tube; 143, flushing tube; 15, outlet water receiving bucket; 16, first fixing block; 17, cold water pipe; 18, U-shaped Connecting pipe; 19, downpipe; 20, through-hole; 21, rack; 22, gear; 23, drainage chamber; 24, water storage chamber; 25, first downpipe; 26, second downpipe; 27, drainage pipe; 28, water pump; 29, water inlet pipe; 30, water outlet pipe; 31, second fixed block; 32, water pipe; 33, water spray pipe; 34, water spray head; 35, water baffle; 36, water supply seat; 361, water supply chamber; 37, cold water connecting pipe; 38, high-pressure nozzle; 39, rolling wheel. DETAILED DESCRIPTION

[0041] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0042] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0043] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0044] Example 1

[0045] like Figure 1-Figure 2 As shown, a controlled rolling cooling device for rolled steel bars comprises a bottom plate 1 and a cooling seat 2. The bottom plate 1 is used for supporting and installing the entire cooling device. The cooling seat 2 is arranged on the top of the bottom plate 1 and is used for water cooling the transported rolled steel bars. A through groove for storing water is provided on the top of the cooling seat 2. A plurality of sleeves 14 are provided in the through groove for guiding and transporting the rolled steel bars. The rolled steel bars can be cooled down by passing through the sleeves 14 and cooperating with the cold water in the through groove.

[0046] like Figure 1-Figure 5As shown, the cooling device also includes two groups of supporting mechanisms symmetrically fixedly connected to the top two sides of the bottom plate 1, and two fixed plates 8 and two partitions 9 located in the through groove are fixedly connected between the two groups of supporting mechanisms. The two partitions 9 are symmetrically arranged and located between the two fixed plates 8, and the two fixed plates 8 are located at the opening edges on both sides of the through groove. The two fixed plates 8 and the two partitions 9 cooperate with the cooling seat 2 to form an independent initial cooling groove 11 and a second stage cooling groove 12. The initial cooling groove 11 is used for the initial cooling of the rolled steel bar, and the second stage cooling groove 12 is used for the secondary cooling of the rolled steel bar. A plurality of sleeves 14 pass through the two fixed plates 8 and the two partitions 9; the supporting mechanism includes a The mounting plate 6 above the cooling seat 2 has two L-shaped support plates 4 symmetrically fixedly connected on one side of the mounting plate 6, and the two L-shaped support plates 4 are fixedly connected to the top of the bottom plate 1, and the two fixing plates 8 and the two partitions 9 are fixedly connected to the bottom of the two mounting plates 6. The two fixing plates 8 are provided with slide grooves 81 on both sides close to the inner wall of the cooling seat 2, and the first sealing slide plates 5 are sealed and slidably connected in multiple slide grooves 81, and one side of multiple first sealing slide plates 5 extends outward and is fixedly connected to the inner wall of the cooling seat 2. Two second sealing slide plates 10 are symmetrically fixedly connected to the inner walls of the two sides of the cooling seat 2, and the two second sealing slide plates 10 are sealed and slidably connected between the two partitions 9. Figure 1-Figure 3 As shown, the mounting plate 6 is fixedly mounted above the cooling seat 2 through two L-shaped support plates 4, and the two fixing plates 8 and the two partitions 9 are fixedly mounted on the bottom of the two mounting plates 6, and are all located in the through groove inside the cooling seat 2, the cooling seat 2 is sealed and slidably connected to the fixing plate 8 through the first sealing slide plate 5, and the cooling seat 2 is sealed and slidably connected to the two partitions 9 through the second sealing slide plate 10, so that the through groove inside the cooling seat 2 can be divided into two independent initial cooling grooves 11 and second-stage cooling grooves 12, and the initial cooling grooves 11 and the second-stage cooling grooves 12 are respectively filled with appropriate amounts of cold water, and the height of the cold water is higher than the casing 14, and the rolled steel bar can be initially cooled by the initial cooling groove 11 when passing through the casing 14, and after the initial cooling, it is secondary cooled by the second-stage cooling groove 12, which has a better cooling effect than the traditional one-stage water-through cooling method, and is also more conducive to the full utilization of the hot water exchange.

[0047] In one aspect of the present embodiment, a pushing cylinder 7 is fixedly connected to one side of the L-shaped support plate 4 away from the cooling seat 2, and the output shaft of the pushing cylinder 7 passes through the L-shaped support plate 4 and is fixedly connected to one side of the cooling seat 2. Two guide rods 13 are symmetrically slidably passed through one side of the L-shaped support plate 4, and one end of the two guide rods 13 is fixedly connected to one side of the cooling seat 2. First, the pushing cylinder 7 is set so that the pushing cylinders 7 on both sides move relative to each other, thereby driving the entire cooling seat 2 to move back and forth on the base plate 1. Since the mounting plate 6 is fixed by the L-shaped support plate 4, the two fixed plates 8 and the two partitions 9 are all in a fixed position. At this time, the cooling seat 2 drives the four first sealing slides 5 and the two second sealing slides 10 to slide back and forth in a sealed manner. During the back and forth movement of the cooling seat 2, the sealing state of the initial cooling groove 11 and the second-stage cooling groove 12 can always be guaranteed, thereby ensuring its water storage capacity; when the cooling seat 2 moves back and forth, since the sleeve 14 passes through the two fixed plates 8 and the two partitions 9, the position of the sleeve 14 is also fixed. When the rolled steel bar passes through the sleeve 14, the cooling seat 2 can drive the cooling water inside it to move back and forth, thereby improving the fluidity of the water and thereby effectively improving the heat exchange effect; when cooling water is input into the initial cooling groove 11 and the second-stage cooling groove 12, the mixing effect between the cooling water and the hot water exchange water can also be improved through the back and forth oscillating flow of the water.

[0048] In one aspect of this embodiment, a plurality of rolling wheels 39 are provided at the bottom of the cooling seat 2, and the plurality of rolling wheels 39 are in rolling contact with the top of the bottom plate 1. When the cooling seat 2 is driven to move back and forth by the push cylinder 7, the rolling of the rolling wheels 39 on the bottom plate 1 can make the cooling seat 2 more convenient to move.

[0049] The present invention can be used in the field of rolling cooling of rolled steel bars, and can also be applied to other fields of the present invention.

[0050] Example 2

[0051] This embodiment is a further improvement of the previous embodiment: Figure 1-Figure 4As shown, a controlled rolling cooling device for rolled steel bars also includes a water delivery mechanism arranged on two groups of support mechanisms, which is used to deliver cooling water to the initial cooling tank 11 and the second-stage cooling tank 12 respectively. When the rolled steel bars pass through the inside of the sleeve 14, they can be cooled down by the cooling water flowing in; the water delivery mechanism includes two first fixed blocks 16 symmetrically fixedly connected to the top of the mounting plate 6, and a same cold water pipe 17 is fixedly connected between the two opposite first fixed blocks 16. One end of the two cold water pipes 17 passes through one side of the corresponding first fixed block 16 and is fixedly connected to the same U-shaped connecting pipe 18, and the U-shaped connecting pipe 18 is connected to a pump through a water delivery pipeline for delivering cooling water. The two cold water pipes 17 are respectively located above the side close to the initial cooling tank 11 and the second-stage cooling tank 12, and the bottoms of the two cold water pipes 17 are connected to multiple downpipes 19 in parallel and equidistantly. The cooling water is simultaneously transported from the U-shaped connecting pipe 18 to the two cold water pipes 17 through an external pump, and then flows into the initial cooling tank 11 and the second-stage cooling tank 12 from a plurality of corresponding downpipes 19, so that the initial cooling and secondary cooling of the rolled steel bars are achieved by the cooling water.

[0052] Example 3

[0053] This embodiment is a further improvement of the previous embodiment: Figure 1-Figure 6As shown, a drainage cavity 23 and a water storage cavity 24 are provided inside the cooling seat 2. The drainage cavity 23 is located directly below the initial cooling groove 11, and the water storage cavity 24 is located directly below the second-stage cooling groove 12. A first water hole 25 and a second water hole 26 are respectively provided on the side of the cooling seat 2 away from each other. The first water hole 25 is connected to the drainage cavity 23, and the second water hole 26 is connected to the water storage cavity 24. A drainage pipe 27 connected to the drainage cavity 23 is provided on one side of the cooling seat 2. An inlet water hopper 3 is fixedly connected to the side of the cooling seat 2 close to the first water hole 25, and an outlet water hopper 15 is fixedly connected to the side of the cooling seat 2 close to the second water hole 26. A through-hole 20 for passing the rolled steel bar is provided on the side of the inlet water hopper 3 and the outlet water hopper 15 away from the cooling seat 2. The rolled steel bar first passes through the through hole 20 on the inlet water receiving bucket 3, enters the sleeve 14, then passes through the other end of the sleeve 14, and then passes through the through hole 20 on the outlet water receiving bucket 15, thereby completing the guided transportation; during the back and forth movement of the cooling seat 2, the setting of the through hole 20 will not affect the normal transportation of the rolled steel bar. At the same time, since the two ends of the sleeve 14 pass through the two fixed plates 8 respectively, the water exchanged in the initial cooling groove 11 and the second stage cooling groove 12 can flow outward from the two ends of the sleeve 14 respectively. At this time, the hot water flowing out of the initial cooling groove 11 can be received by the inlet water receiving bucket 3, and then flow into the drainage cavity 23 from the first downhole 25, and then flow back to the cooling tower from the drainage pipe 27 for re-cooling. Similarly, the hot water flowing out of the second stage cooling groove 12 can be received by the outlet water receiving bucket 15, and then flow into the water storage cavity 24 from the second downhole 26 for storage.

[0054] In one aspect of this embodiment, a water pump 28 is fixedly connected to the top of the bottom plate 1, a water inlet end of the water pump 28 is fixedly connected to a water inlet pipe 29, the other end of the water inlet pipe 29 is connected to the water storage chamber 24, and a water outlet end of the water pump 28 is fixedly connected to a water outlet pipe 30. In order to facilitate the back and forth movement of the cooling seat 2, the water inlet pipe 29 and the water outlet pipe 27 can both be metal hoses. A second fixed block 31 is fixedly connected to one side of the top of the two mounting plates 6, and a same water pipe 32 is fixedly connected between the two second fixed blocks 31. One end of the water pipe 32 passes through one side of one of the second fixed blocks 31 and is fixedly connected to one end of the water outlet pipe 30. A plurality of water spray pipes 33 are fixedly connected to the outer wall of the water pipe 32 in parallel and equidistant manner, and a plurality of water spray heads 34 for spraying and cooling the rolled steel bars are fixedly connected to one side of the bottom of the plurality of water spray pipes 33 in parallel and equidistant manner. Since the rolled steel bar first passes through the initial cooling tank 11 for cooling, the temperature of the hot water in the initial cooling tank 11 is relatively high at this time, so it directly flows into the drainage chamber 23 and flows out from the drainage pipe 27 to the cooling tower for further cooling. After the rolled steel bar is initially cooled, it enters the second cooling tank 12 for cooling. At this time, the temperature of the hot water in the second cooling tank 12 is much lower than that of the hot water in the initial cooling tank 11. If the traditional water-through cooling is performed in a cooling pool, the hot water will flow out by direct discharge, so that the water with a not very high temperature in the rear area will also be discharged together, reducing the utilization rate of low-temperature water. In the present invention, the low-temperature hot water in the second cooling tank 12 will directly flow into the water storage tank. The low-temperature hot water is temporarily stored in the cavity 24 and will not mix with the incoming high-temperature hot water and flow out. The stored low-temperature hot water is pumped into the water pipe 32 through the water inlet pipe 29 and the water outlet pipe 30 by the water pump 28, and then sprayed out from the multiple water spray heads 34 through the multiple water spray pipes 33. In this way, the low-temperature hot water can be used to pre-cool the rolled steel bars just delivered to the inlet water receiving bucket 3, thereby greatly improving the effect and efficiency of subsequent cooling, and at the same time, the low-temperature hot water can be fully utilized, saving energy consumption; and the water temperature after the heat exchange increases again and becomes high-temperature hot water, and then directly flows into the inlet water receiving bucket 3, and flows into the drainage cavity 23 from the first downhole 25, and is finally discharged from the drainage pipe 27 together with the other high-temperature hot water flowing in.

[0055] In one aspect of the present embodiment, a water baffle 35 located above the feed hole 20 is fixedly connected to the inner wall of the inlet water receiving bucket 3 away from the cooling seat 2. When the rolled steel bar is conveyed from the feed hole 20 on the inlet water receiving bucket 3 and introduced into the sleeve 14, water is sprayed on its surface by the water spray head 34 for pre-cooling. During the water spraying process, the water baffle 35 can be used to block the sprayed water to prevent water from splashing out from the feed hole 20 to avoid affecting the working environment.

[0056] Example 4

[0057] This embodiment is a further improvement of the previous embodiment: Figure 1-Figure 8 As shown, the sleeve 14 includes two rotating tubes 141, two hollow tubes 142 and a flushing tube 143. The flushing tube 143 is located in the middle section and is sealed and rotated to pass through the two partitions 9 at the same time. The two hollow tubes 142 are respectively integrally formed at the two ends of the flushing tube 143 and are respectively located in the initial cooling groove 11 and the second-stage cooling groove 12. The two rotating tubes 141 are respectively integrally formed at one end of the two hollow tubes 142 away from the flushing tube 143, and the other ends of the two rotating tubes 141 are respectively sealed and rotated to pass through one side of the two fixed plates 8 and extend outward. One end of one of the rotating tubes 141 away from the hollow tube 142 is fixedly sleeved with a gear 22 located in the inlet water receiving bucket 3, and the interior of the inlet water receiving bucket 3 is fixedly connected with a rack 21 meshing with the gear 22. When the rolled steel bar passes through the casing 14, it first enters from the rotating tube 141 near the inlet water receiving bucket 3, and then passes through one of the hollow tubes 142, the flushing tube 143, and the other hollow tube 142 in turn, and finally passes through the rotating tube 141 near the outlet water receiving bucket 15. The cooling water can enter the entire casing 14 from the hollow tube 142 to cool the transported rolled steel bar, and the water after heat exchange flows out from one end of the rotating tube 141; when the cooling seat 2 moves back and forth, it can drive the rack 21 to move back and forth, and through the meshing movement with the gear 22, it can drive the entire casing 14 to rotate back and forth. As the cooling seat 2 drives the water to swing back and forth, and the casing 14 rotates back and forth, the fluidity of the water and the heat exchange effect can be further improved.

[0058] Example 5

[0059] This embodiment is a further improvement of the previous embodiment: Figure 1-Figure 9As shown, a same water delivery seat 36 is fixedly connected between the two partitions 9, and a plurality of flushing pipes 143 are sealed and rotatably penetrate the water delivery seat 36, a water delivery cavity 361 is provided inside the water delivery seat 36, an inner wall of the flushing pipe 143 is located on one side of the water delivery cavity 361 and is provided with a plurality of high-pressure nozzles 38 connected to the water delivery cavity 361 in a circular shape and equidistantly, a cold water connecting pipe 37 connected to the water delivery cavity 361 is fixedly connected through the top of the water delivery seat 36, and one end of the cold water connecting pipe 37 is connected to a pump through a water delivery pipeline for conveying cooling water. The cooling water is conveyed from the cold water connecting pipe 37 to the water delivery chamber 361 through an external pump, and then sprayed out from multiple high-pressure nozzles 38, which performs high-pressure washing on the conveyed rolled steel bars while also cooling them down; since the cooling seat 2 also drives the sleeve 14 to rotate back and forth during the back and forth movement, the flushing pipe 143 can be rotated, and the high-pressure nozzle 38 can be driven to rotate back and forth. On the one hand, it can increase the flushing range of the rolled steel bars, and on the other hand, a water wall can be formed in the flushing pipe 143 by rotating water spraying. Since the flushing pipe 143 is connected to the two hollow tubes 142, and the two hollow tubes 142 are respectively located in the initial cooling tank 11 and the second-stage cooling tank 12, the water wall can prevent the hot water on both sides from intersecting to a certain extent, thereby playing a certain barrier role.

[0060] However, as is well known to those skilled in the art, the working principle and wiring method of the push cylinder 7 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any selections according to their needs or convenience.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A controlled rolling cooling device for rolled steel bars, characterized in that: include: A bottom plate (1) used for supporting and installing the entire cooling device; A cooling seat (2) is arranged on the top of the bottom plate (1) and is used for cooling the transported rolled steel bars by passing through water. A through groove for storing water is provided on the top of the cooling seat (2). A plurality of sleeves (14) are provided in the through groove for guiding and transporting the rolled steel bars. The rolled steel bars can be cooled by the cold water in the through groove when passing through the sleeves (14). Two groups of support mechanisms are symmetrically fixedly connected to the top two sides of the bottom plate (1); two fixed plates (8) and two partitions (9) located in the through slot are fixedly connected between the two groups of support mechanisms; the two partitions (9) are symmetrically arranged and located between the two fixed plates (8); and the two fixed plates (8) are located at the opening edges on both sides of the through slot; the two fixed plates (8) and the two partitions (9) cooperate with the cooling seat (2) to form a mutually independent initial cooling slot (11) and a second stage cooling slot (12); the initial cooling slot (11) is used for initial cooling of the rolled steel bar; and the second stage cooling slot (12) is used for secondary cooling of the rolled steel bar; and the plurality of sleeves (14) all pass through the two fixed plates (8) and the two partitions (9); A water delivery mechanism is provided on the two sets of support mechanisms and is used to deliver cooling water to the initial cooling groove (11) and the second stage cooling groove (12) respectively, so that when the rolled steel bar passes through the inside of the sleeve (14), it can be cooled by the inflowing cooling water; The support mechanism comprises a mounting plate (6) arranged above the cooling seat (2), two L-shaped support plates (4) being symmetrically fixedly connected to one side of the mounting plate (6), and the two L-shaped support plates (4) are both fixedly connected to the top of the bottom plate (1), and the two fixing plates (8) and the two partition plates (9) are both fixedly connected to the bottom of the two mounting plates (6); Both sides of the two fixing plates (8) close to the inner wall of the cooling seat (2) are provided with sliding grooves (81), and the first sealing slide plates (5) are sealingly and slidably connected in the plurality of sliding grooves (81), and one side of the plurality of first sealing slide plates (5) extends outward and is fixedly connected to the inner wall of the cooling seat (2); Two second sealing slide plates (10) are symmetrically and fixedly connected to the inner walls of both sides of the cooling seat (2), and the two second sealing slide plates (10) are both sealingly and slidably connected between the two partition plates (9); A push cylinder (7) is fixedly connected to one side of the L-shaped support plate (4) away from the cooling seat (2), and an output shaft of the push cylinder (7) passes through the L-shaped support plate (4) and is fixedly connected to one side of the cooling seat (2); Two guide rods (13) are symmetrically slidably penetrated on one side of the L-shaped support plate (4), and one end of the two guide rods (13) is fixedly connected to one side of the cooling seat (2); The water delivery mechanism comprises two first fixing blocks (16) symmetrically fixedly connected to the top of the mounting plate (6); A same cold water pipe (17) is fixedly connected between two opposite first fixed blocks (16), one end of each of the two cold water pipes (17) passes through one side of the corresponding first fixed block (16) and is fixedly connected to a same U-shaped connecting pipe (18), and the U-shaped connecting pipe (18) is connected to a pump via a water delivery pipeline for delivering cooling water; The two cold water pipes (17) are respectively located above the side where the initial cooling tank (11) and the second stage cooling tank (12) are close to each other, and the bottoms of the two cold water pipes (17) are connected to a plurality of downpipes (19) in parallel and at equal distances; The cooling seat (2) is provided with a drainage cavity (23) and a water storage cavity (24) inside, the drainage cavity (23) is located directly below the initial cooling groove (11), and the water storage cavity (24) is located directly below the second cooling groove (12), and a first water discharge hole (25) and a second water discharge hole (26) are respectively provided on the side of the cooling seat (2) away from each other, the first water discharge hole (25) is connected to the drainage cavity (23), and the second water discharge hole (26) is connected to the water storage cavity (24); A drainage pipe (27) connected to the drainage cavity (23) is provided on one side of the cooling seat (2); An inlet water hopper (3) is fixedly connected to a side of the cooling seat (2) close to the first water hole (25), and an outlet water hopper (15) is fixedly connected to a side of the cooling seat (2) close to the second water hole (26). A through hole (20) for the rolled steel bar to pass through is provided on a side of the inlet water hopper (3) and the outlet water hopper (15) away from the cooling seat (2).

2. A controlled rolling cooling device for rolled steel bars as claimed in claim 1, characterized in that: The bottom of the cooling seat (2) is provided with a plurality of groups of rolling wheels (39), and the plurality of groups of rolling wheels (39) are all in rolling contact with the top of the bottom plate (1).

3. A controlled rolling cooling device for rolled steel bars as claimed in claim 1, characterized in that: A water pump (28) is fixedly connected to the top of the bottom plate (1); a water inlet end of the water pump (28) is fixedly connected to a water inlet pipe (29); the other end of the water inlet pipe (29) is connected to the water storage chamber (24); and a water outlet end of the water pump (28) is fixedly connected to a water outlet pipe (30); A second fixing block (31) is fixedly connected to one side of the top of each of the two mounting plates (6); a water pipe (32) is fixedly connected between the two second fixing blocks (31); one end of the water pipe (32) passes through one side of one of the second fixing blocks (31) and is fixedly connected to one end of a water outlet pipe (30); a plurality of water spray pipes (33) are fixedly connected to the outer wall of the water pipe (32) in parallel and at equal intervals; a plurality of water spray heads (34) for spraying and cooling the rolled steel bars are fixedly connected to one side of the bottom of each of the plurality of water spray pipes (33) in parallel and at equal intervals.

4. A controlled rolling cooling device for rolled steel bars as claimed in claim 3, characterized in that: A water baffle (35) located above the material penetration hole (20) is fixedly connected to the inner wall of the inlet water receiving hopper (3) on a side away from the cooling seat (2).

5. A controlled rolling cooling device for rolled steel bars as claimed in claim 4, characterized in that: The sleeve (14) comprises two rotating tubes (141), two hollow tubes (142) and a flushing tube (143); the flushing tube (143) is located in the middle section and simultaneously rotates and seals through the two partitions (9); the two hollow tubes (142) are respectively integrally formed and arranged at both ends of the flushing tube (143) and are respectively located in the initial cooling groove (11) and the second stage cooling groove (12); the two rotating tubes (141) are respectively integrally formed and arranged at one end of the two hollow tubes (142) away from the flushing tube (143); and the other ends of the two rotating tubes (141) respectively rotate and seal through one side of the two fixed plates (8) and extend outward; One end of one of the rotating tubes (141) away from the hollow tube (142) is fixedly sleeved with a gear (22) located in the inlet water receiving bucket (3), and the interior of the inlet water receiving bucket (3) is fixedly connected with a rack (21) meshing with the gear (22).

6. A controlled rolling cooling device for rolled steel bars as claimed in claim 5, characterized in that: A water delivery seat (36) is fixedly connected between the two partitions (9), and a plurality of flushing pipes (143) are sealed and rotatably penetrate the water delivery seat (36). A water delivery cavity (361) is provided inside the water delivery seat (36), and a plurality of high-pressure nozzles (38) connected to the water delivery cavity (361) are equidistantly provided in a circular shape on one side of the inner wall of the flushing pipe (143) located inside the water delivery cavity (361); A cold water connecting pipe (37) communicating with the water delivery chamber (361) is fixedly connected through the top of the water delivery seat (36), and one end of the cold water connecting pipe (37) is connected to a pump via a water delivery pipeline for delivering cooling water.

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