Cooling device for steel bar production

Abstract

The utility model discloses a cooling device for reinforcing steel bar production, and relates to the technical field of reinforcing steel bar production. According to the technical key points, the device comprises a roller bed conveying cooling bed, a plurality of top spraying units are arranged on the upper side of the roller bed conveying cooling bed, and the top spraying units can spray cooling water downwards from the upper portion of the roller bed conveying cooling bed; a gap is formed between every two adjacent top spraying units; a plurality of bottom spraying units capable of spraying cooling water upwards from the lower portion of the roller bed conveying cooling bed are arranged below a roller bed of the roller bed conveying cooling bed, and the multiple bottom spraying units face gaps between every two adjacent top spraying units in the multiple top spraying units below the roller bed of the roller bed conveying cooling bed. A cooling water recycling unit capable of temporarily collecting water flow generated in the steel bar water cooling process is further installed below the roller way conveying cooling bed. The top spraying unit and the bottom spraying unit which are arranged on the upper side and the lower side of the roller bed conveying cooling bed correspondingly cooperate with each other, steel bars make full contact with cooling water during cooling, and therefore the steel bar cooling effect is effectively improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of steel bar production, in particular to a cooling device for steel bar production. BACKGROUND

[0002] The cooling process after steel bar rolling is a key link affecting the performance and quality of steel, and the core lies in optimizing the organizational structure and mechanical properties of the material by controlling the cooling speed, temperature and mode. The cooling mode includes air cooling, stack cooling, water cooling, air cooling and slow cooling. By controlling the cooling process, the internal grain of the steel bar can be refined, production defects can be reduced, and the toughness of the final product can be improved. The most commonly used steel bar cooling mode is water cooling, generally a plurality of fixed structure nozzles are installed on the cooling bed, the nozzles are connected with the cooling water source, when the steel bar passes through the cooling bed, the nozzles spray water flow from the top to the surface of the steel bar, and the cooling water is used to quickly take away the temperature on the steel bar to achieve the effect of rapid cooling, but the existing mode of fixing the nozzles above the cooling bed has obvious difference in the immersion cooling effect of the cooling water on the bottom of the steel bar from the upper half of the steel bar during use, thereby affecting the uniformity of the cooling effect in the steel bar production process. CONTENT OF THE UTILITY MODEL

[0003] The application provides a cooling device for steel bar production, which can improve the cooling effect of the steel bar on the cooling bed.

[0004] The above object of the application is realized by the following technical scheme:

[0005] A cooling device for steel bar production, comprising a roller conveying cooling bed, a plurality of top spraying units are uniformly arranged on the upper side of one end of the roller conveying cooling bed close to the steel bar side along the length direction, and the plurality of top spraying units can spray cooling water downward from the upper side of the roller conveying cooling bed.

[0006] The adjacent top spraying units have a gap, a plurality of bottom spraying units are uniformly arranged below the roller of the roller conveying cooling bed along the length direction, the plurality of bottom spraying units can spray cooling water upward from the lower side of the roller conveying cooling bed, and the plurality of bottom spraying units below the roller of the roller conveying cooling bed respectively face the gap between the adjacent two top spraying units in the plurality of top spraying units.

[0007] A cooling water recovery unit is further installed below the roller conveying cooling bed, and the cooling water recovery unit can temporarily collect the water flow generated in the water cooling process of the steel bar.

[0008] Further, the top spraying unit comprises a main water distributor, a water inlet of the main water distributor is connected with a cooling water supply pipeline in the factory through a metal hose, the main water distributor is installed on the support rack through an adjusting frame, the adjusting frame can adjust the height of the main water distributor in the vertical direction, a plurality of water receiving openings are arranged on the main water distributor, a water supply branch pipe is arranged on each water receiving opening of the main water distributor, a plurality of first nozzles are arranged on the lower side of each water supply branch pipe, and the first nozzles on the adjacent water supply branch pipes are arranged in a staggered manner.

[0009] Further, the adjusting frame comprises an outer box body, and an inner box body is slidably arranged in the outer box body.

[0010] The outer box body is located outside the roller conveyor cooling bed and is fixedly installed on the support rack, the inner box body is fixedly connected with the main water distributor in the top spraying unit at the corresponding position through a pipe rack close to one side of the roller conveyor cooling bed.

[0011] A threaded adjusting rod is inserted through the upper end of the inner box body and is rotationally connected with the inner box body through a bearing, a threaded section of the threaded adjusting rod is inserted through a fixed block and is threadedly connected with the fixed block, and the fixed block is fixedly installed on the inner wall of the outer box body.

[0012] A support beam is fixedly arranged at a position close to the upper end of the inner side of the inner box body, the upper and lower ends of the outer ring of the bearing are fixedly connected with the support beam and the top plate of the inner box body respectively, two limiting pieces are fixedly connected with the threaded adjusting rod, and the two limiting pieces are located on the sides away from each other of the top plate of the inner box body and the support beam respectively.

[0013] Further, the cooling water recovery unit comprises a recovery water tank, a water suction pipe is arranged at the bottom of the recovery water tank in the horizontal direction, one end of the water suction pipe penetrates through the side wall of the recovery water tank and is connected with a water inlet of a water pump fixedly installed on a support leg of the roller conveyor cooling bed, a water outlet of the water pump is connected with a plurality of bottom spraying units through a water outlet pipe, and the pipe section of the water outlet pipe below the plurality of bottom spraying units is fixedly connected with the support rack through a plurality of pipe clamps.

[0014] Further, one end of the water suction pipe in the recovery water tank is fixedly connected with a filter cylinder.

[0015] Further, the bottom spraying unit comprises a water supply cross pipe, one end of the water supply cross pipe is connected with the water outlet pipe, and a plurality of second nozzles are uniformly arranged on the upper side of the water supply cross pipe in the width direction of the roller conveyor cooling bed.

[0016] Further, the first nozzles and the second nozzles are stainless steel adjustable spherical clamping nozzles.

[0017] Further, the water supply branch pipes and the water supply cross pipes are provided with adjusting valves.

[0018] Further, the tail part of the roller conveyor cooling bed is provided with a wind cooling unit, which comprises a plurality of fans arranged uniformly along the length direction of the roller conveyor cooling bed above the roller conveyor cooling bed, the plurality of fans are fixedly installed on a side support located at one side of the roller conveyor cooling bed, the air outlets of the fans are fixedly inserted into the top of a same protective wind cover, the lower end of the protective wind cover is fixedly connected with the top of a corresponding protective side plate of the roller conveyor cooling bed, and a slag receiving box is arranged at a position corresponding to the protective wind cover below the roller conveyor cooling bed.

[0019] In summary, the present application has at least one of the following beneficial technical effects:

[0020] The plurality of top spraying units arranged along the length direction of the roller conveyor cooling bed can timely spray cooling water to the surface of the steel bars from above when the steel bars move along the roller conveyor cooling bed, so as to efficiently cool the upper half part of the steel bars. The plurality of bottom spraying units arranged below the roller of the roller conveyor cooling bed can spray water to the bottom area of the steel bars from below when the steel bars move along the roller conveyor cooling bed, so that the cooling water can fully contact the steel bars in the circumferential direction, thereby ensuring that the whole steel bars can be uniformly cooled down when moving along the roller conveyor cooling bed. During the cooling process of the steel bars, some iron oxide scales or non-metallic impurities on the surface of the steel bars can be washed off, and if the impurities directly fall onto the bottom spraying units, the bottom spraying units can be damaged. The adjacent top spraying units are provided with gaps, and the bottom spraying units below the roller of the roller conveyor cooling bed are just opposite to the gaps, so that the influence of the top spraying units on the bottom spraying units in the working area of the bottom spraying units can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort.

[0022] Figure 1 is a schematic diagram of the overall structure of the present application;

[0023] Figure 2 is Figure 1 is an enlarged structure schematic diagram of position A in

[0024] Figure 3This is a structural diagram showing the reclaimed water tank and one of the regulating frames after the outer casing has been partially cut open.

[0025] Figure 4 yes Figure 3 Enlarged structural diagram at point B;

[0026] Figure 5 This is a bottom view of this application;

[0027] Figure 6 yes Figure 5 Enlarged structural diagram at point C;

[0028] Figure 7 yes Figure 3 A magnified structural diagram at point D.

[0029] Reference numerals: 1. Roller conveyor cooling bed; 2. Top spray unit; 21. Main water distributor; 22. Metal hose; 23. Adjusting frame; 231. Outer casing; 232. Inner casing; 233. Pipe rack; 234. Threaded adjusting rod; 235. Bearing; 236. Fixing block; 237. Support beam; 238. Limiting plate; 24. Water supply branch pipe; 25. First nozzle; 3. Bottom spray unit; 31. Water supply horizontal pipe; 32. Second nozzle; 4. Cooling water recovery unit; 41. Recovery water tank; 42. Pumping pipe; 43. Water pump; 44. Water outlet pipe; 45. Pipe clamp; 5. Support frame; 6. Filter cylinder; 7. Adjusting valve; 8. Air-cooled unit; 81. Fan; 82. Side support; 83. Protective hood; 84. Slag receiving box. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0031] like Figure 1 and Figure 5 As shown, a cooling device for steel bar production disclosed in this application includes a roller conveyor cooling bed 1. Multiple top spray units 2 are evenly arranged on the upper side of the roller conveyor cooling bed 1 near the direction of steel bar arrival along its length. Multiple top spray units 2 can spray cooling water downward from above the roller conveyor cooling bed 1.

[0032] The adjacent top spraying units 2 have a gap between them; the plurality of bottom spraying units 3 are arranged uniformly along the length direction below the roller bed conveying cold bed 1, and each of the plurality of bottom spraying units 3 can spray cooling water from below the roller bed conveying cold bed 1, and the plurality of bottom spraying units 3 are respectively arranged below the roller bed conveying cold bed 1 to face the gap between the adjacent two of the plurality of top spraying units 2.

[0033] The roller bed conveying cold bed 1 is also provided with a cooling water recovery unit 4 below, which can temporarily collect the water flow generated during the cooling process of the steel bar.

[0034] In the above embodiment, the steel bar enters from one end of the roller bed conveying cold bed 1 after rolling and is output from the other end of the roller bed conveying cold bed 1, and the steel bar enters the one end of the roller bed conveying cold bed 1, i.e. the end of the roller bed conveying cold bed 1 close to the steel bar, and the plurality of top spraying units 2 are arranged above the end of the roller bed conveying cold bed 1, so that the steel bar can be quickly cooled by the top spraying units 2 of the present application at the first time of being conveyed to the roller bed conveying cold bed 1 of the present application after rolling. Because the finish rolling temperature is high, if the steel bar cannot be cooled in time, the austenite grains in the steel bar will grow and cause the strength of the steel to decrease. By quickly cooling the steel bar through the top spraying units 2 of the present application, not only can the grain coarsening be inhibited, but also the grain can be refined through deformation-induced phase transformation, and the yield strength and tensile strength can be significantly improved.

[0035] The plurality of bottom spraying units 3 are arranged below the roller bed conveying cold bed 1, and the bottom spraying units 3 can spray cooling water to the lower half of the steel bar through the gap between the rollers in the roller bed conveying cold bed 1 when in use, so that the steel bar after rolling can be cooled and cooled in all directions in cooperation with the top spraying units 2, and the uniformity of the cooling process of the steel bar can be improved, which is helpful to improve the quality of the final product.

[0036] In this application, there is a gap between adjacent top spray units 2, and multiple bottom spray units 3 located below the roller conveyor cooling bed 1 correspond one-to-one with the gaps between these top spray units 2 (i.e., the gap area between adjacent top spray units 2). Compared with setting the bottom spray units 3 directly below the top spray units 2, this can avoid the water sprayed down by the top spray units 2 interfering with the water sprayed out by the bottom spray units 3, thus preventing the water sprayed out by the bottom spray units 3 from reaching the bottom of the steel bar to be cooled smoothly. Furthermore, during the production process, the surface of the reinforcing steel will form iron oxide scale due to high-temperature oxidation. When the reinforcing steel is cooled rapidly, the oxidation reaction on its surface will be accelerated, which will weaken the bonding force between the iron oxide scale and the matrix. Combined with the impact force of the water flow, it is easy to peel off from the reinforcing steel. In addition, some inclusions inevitably adhere to the surface of the reinforcing steel during the production and rolling process. When the reinforcing steel is cooled, due to the effect of thermal expansion and contraction, these inclusions are also easily washed off by the water flow in the top spray unit 2. If the bottom spray unit 3 is set directly below the top spray unit 2, these washed-off impurities and debris can easily damage the bottom spray unit 3. However, by setting the bottom spray unit 3 of this application below the gap between the top spray units 2, the impact of impurities peeling off from the reinforcing steel during the cooling process on the bottom spray unit 3 can be effectively reduced.

[0037] This application also provides a cooling water recovery unit 4 at the position corresponding to all the top spray unit 2 and bottom spray unit 3 below the roller conveyor cooling bed 1, so as to collect the wastewater generated during the steel bar cooling process in a timely manner for subsequent reuse.

[0038] Furthermore, such as Figure 1 and Figure 2 As shown, the top spray unit 2 includes a main water distributor 21. The inlet of the main water distributor 21 is connected to the cooling water supply pipeline in the plant through a metal hose 22. The main water distributor 21 is mounted on the support frame 5 through an adjusting frame 23. The adjusting frame 23 can adjust the height of the main water distributor 21 in the vertical direction. The main water distributor 21 is provided with multiple water inlets. A water supply branch pipe 24 is installed on each of the multiple water inlets on the main water distributor 21. Multiple first nozzles 25 are installed on the lower side of each water supply branch pipe 24, and the first nozzles 25 on adjacent water supply branch pipes 24 are staggered.

[0039] In the above embodiments, the main water distributor 21 in the top spray unit 2 has a one-inlet, multiple-outlet structure. Its inlet is connected to the cooling water supply pipeline in the plant through a metal hose 22, and its multiple outlets are connected to the same number of water supply branch pipes 24. In this way, the main water distributor 21 can supply water to multiple water supply branch pipes 24 simultaneously. Each water supply branch pipe 24 is uniformly equipped with multiple first nozzles 25, and the first nozzles 25 between adjacent water supply branch pipes 24 are staggered. In this way, even if the steel bars in an inclined state on the roller conveyor cooling bed 1 pass through the top spray unit 2, all parts of them can be cooled evenly.

[0040] Further, as shown in Figure 3 and Figure 4 Adjusting frame 23 comprises an outer box 231, an inner box 232 is slidingly installed in the outer box 231; the outer box 231 is located outside the roller conveyor cooling bed 1 and is fixedly installed on the support rack 5, the inner box 232 is fixedly connected with the main water distributor 21 in the corresponding position of the top spraying unit 2 through the pipe frame 233 near the side of the roller conveyor cooling bed 1; a threaded adjusting rod 234 is inserted through the upper end of the inner box 232 and is rotationally connected with the inner box 232 through a bearing 235, the threaded section of the threaded adjusting rod 234 is inserted through a fixed block 236 and is threadedly connected with the fixed block 236, and the fixed block 236 is fixedly installed on the inner wall of the outer box 231; a support beam 237 is fixedly arranged on the inner side of the inner box 232 near the upper end thereof, the upper and lower ends of the outer ring of the bearing 235 are fixedly connected with the support beam 237 and the top plate of the inner box 232 respectively, two limiting pieces 238 are fixedly connected with the threaded adjusting rod 234, and the two limiting pieces 238 are respectively located on the mutually faraway sides of the top plate of the inner box 232 and the support beam 237.

[0041] In the above embodiment, the inner box body 232 is provided with a bearing 235 between the inner side of the top plate and the upper side of the support beam 237, a threaded adjusting rod 234 is inserted in the bearing 235, the threaded adjusting rod 234 is fixedly connected with the inner ring of the bearing 235, the outer ring of the bearing 235 is fixedly connected with the inner side of the top plate and the upper side of the support beam 237 respectively, so that the threaded adjusting rod 234 can be rotatably connected with the inner box body 232 through the bearing 235, the threaded section of the threaded adjusting rod 234 is threadedly connected with the fixed block 236 fixedly installed on the outer box body 231, and workers can move the threaded adjusting rod 234 up and down along the fixed block 236 by rotating the threaded adjusting rod 234. The rod body of the threaded adjusting rod 234 has a stable rotating connection with the inner box body 232 through the limiting piece 238 and the bearing 235, and the main water distributor 21 is installed on the inner box body 232. Thus, the inner box body 232 can be moved along the outer box body 231 during the movement of the threaded adjusting rod 234, so as to adjust the position of the top spraying unit 2 in the vertical direction. During the production of steel bars, the height of the first spray head 25 can be adjusted to control the spraying range and impact force of the cooling water, so as to meet the requirements of different types of steel bars on the coverage area and impact force of the cooling medium. For example, under the condition that the water flow remains unchanged, the height of the first spray head 25 can be lowered to increase the water flow impact force, improve the cooling efficiency, and reduce the cooling water spraying range. In addition, reasonable adjustment of the height of the first spray head 25 during production can achieve uniform cooling effect of the cooling medium on the surface of the steel bar, eliminate the risk of grain coarsening or uneven organization, and prevent the water flow from being dispersed due to excessively high height of the first spray head 25, which may result in insufficient cooling in the central area. When different specifications of steel bars are switched on the same production line, the height of the first spray head 25 in the top spraying unit 2 can be adjusted by the adjusting rack 23 to quickly adjust the cooling parameters, reduce the equipment downtime, and improve the production efficiency.

[0042] Further, as shown in Figure 3 and Figure 7 , the cooling water recovery unit 4 comprises a recovery water tank 41, the bottom of the recovery water tank 41 is provided with a water suction pipe 42 in the horizontal direction, one end of the water suction pipe 42 penetrates through the side wall of the recovery water tank 41 and is connected with the water inlet of a water pump 43 fixedly installed on the supporting leg of the roller conveying cooling bed 1, the water outlet of the water pump 43 is connected with a plurality of bottom spraying units 3 through a water outlet pipe 44, and the pipe section of the water outlet pipe 44 located below the plurality of bottom spraying units 3 is fixedly connected with the support row rack 5 through a plurality of pipe clamps 45.

[0043] In the above embodiment, during the cooling of the steel bars, the top spraying unit 2 sprays water downward to the steel bars for cooling. Since the steel bars have good thermal conductivity, although the lower half of the steel bars cannot directly contact the water sprayed by the top spraying unit 2, the heat can be replaced through the metal conduction, so the cooling water temperature requirement for the lower side of the steel bars is not as high as that of the top spraying unit 2. After the steel bars are sprayed and cooled by the top spraying unit 2 or the bottom spraying unit 3, waste water is generated, which will fall into the recycling water tank 41 under the action of gravity. The recycling water tank 41 is provided with a water suction pipe 42, one end of the water suction pipe 42 penetrates through the side wall of the recycling water tank 41 and is connected with the water inlet of the water pump 43. The water outlet of the water pump 43 is connected with the bottom spraying unit 3 through a water outlet pipe 44 and a plurality of bottom spraying units 3. In this way, the water in the recycling water tank 41 can be reused to provide water source for the bottom spraying unit 3, which can effectively improve the utilization efficiency of water resources compared with directly discharging the waste water.

[0044] In actual production, if the water temperature requirement of the bottom spraying unit 3 is also high, a heat exchange pipe can be arranged in the recycling water tank 41. The heat exchange pipe is connected with the refrigeration equipment. When the refrigeration equipment works, the low-temperature medium can be circulated and transported into the recycling water tank 41 through the heat exchange pipe, so that the water sprayed by the bottom spraying unit 3 can also be converted into the required low temperature.

[0045] Further, as shown in Figure 3 and Figure 7 , one end of the water suction pipe 42 fixedly connected with a filter cylinder 6 in the recycling water tank 41.

[0046] In the above embodiment, the waste water collected in the recycling water tank 41 will be mixed with impurities washed down from the steel bars. If the impurities directly flow into the water pump 43 or the bottom spraying unit 3, the equipment may be damaged. Therefore, a metal filter cylinder 6 is fixedly installed at the end of the water suction pipe 42 to block the solid impurities in the water outside when the water pump 43 pumps water through the water suction pipe 42, so as to achieve the protection effect of the water pump 43 and the bottom spraying unit 3.

[0047] Further, as shown in Figure 5 and Figure 6 , the bottom spraying unit 3 includes a water supply horizontal pipe 31, one end of the water supply horizontal pipe 31 is connected with the water outlet pipe 44, and a plurality of second spraying heads 32 are uniformly arranged on the upper side of the water supply horizontal pipe 31 along the width direction of the roller conveying cooling bed 1.

[0048] In the above embodiment, when the top spraying unit 2 arranged above the roller conveying cooling bed 1 sprays water to cool the steel bars, the cooling water can not only take away the heat of the area directly contacted with the steel bars, but also take away the heat inside the steel bars and the heat of the area not contacted with the water sprayed by the top spraying unit 2 through the heat conduction of the metal. Therefore, the temperature of the lower side of the steel bar after passing through the top spraying unit 2 is obviously lower than the temperature of the surface of the steel bar before cooling, and the water demand for cooling the lower side of the steel bar is not as high as that of the top spraying unit 2. Therefore, when the lower side of the steel bar is sprayed with water for cooling, the bottom spraying unit 3 of the present application is only provided with a single water supply horizontal pipe 31. A plurality of second nozzles 32 are evenly arranged side by side on the single water supply horizontal pipe 31. When the steel bar passes through the bottom spraying unit 3, the second nozzles 32 in the bottom spraying unit 3 can uniformly spray water to the lower side of the steel bar to prevent the existence of a missed spraying area on the lower side of the steel bar.

[0049] Further, the first nozzles 25 and the second nozzles 32 are both stainless steel adjustable spherical clamping nozzles.

[0050] In the above embodiment, the first nozzles 25 and the second nozzles 32 of the present application are both stainless steel adjustable spherical clamping nozzles. Therefore, the nozzles can be freely adjusted in angle according to the needs during use, and the cooling water spraying angle can be adjusted according to the process during the production process.

[0051] Further, as shown in Figure 2 and Figure 6 , the water supply branch pipes 24 and the water supply horizontal pipe 31 are both provided with adjusting valves 7.

[0052] In the above embodiment, the water supply branch pipes 24 and the water supply horizontal pipe 31 are both provided with adjusting valves 7. Therefore, the technicians can adjust the water output of the first nozzles 25 and the second nozzles 32 according to the needs of the products or the process. The adjusting valves 7 are preferably solenoid valves. Therefore, the operation is more convenient during use.

[0053] Further, as shown in Figure 1 and Figure 3 , the tail part of the roller conveying cooling bed 1 is provided with an air cooling unit 8. The air cooling unit 8 includes a plurality of fans 81 evenly arranged along the length direction of the roller conveying cooling bed 1 above the roller conveying cooling bed 1. The plurality of fans 81 are fixedly installed on a side bracket 82 located at one side of the roller conveying cooling bed 1. The air outlets of the fans 81 are fixedly inserted into the top of a same protective wind cover 83. The lower end of the protective wind cover 83 is fixedly connected with the top of the protective side plate of the roller conveying cooling bed 1 at the corresponding position. A slag receiving box 84 is arranged at the position corresponding to the protective wind cover 83 below the roller conveying cooling bed 1.

[0054] In the above embodiment, after the steel bars are subjected to the rapid cooling treatment by the top spraying unit 2 and the bottom spraying unit 3, the steel bars are conveyed along the roller bed to the protective wind cover 83, and the multiple fans 81 at the top of the protective wind cover 83 are powered on to uniformly blow air to the surface of the steel bars. After water cooling, water film or water droplets may be attached to the surface of the steel bars, and the blowing air can accelerate the evaporation of the water on the surface of the steel bars to avoid the oxidation and corrosion of the steel bars due to the retention of the water. In addition, some impurities such as water scale particles and oxidized skin debris may be left on the surface of the steel bars during the water cooling process, and the blowing air by the fans 81 can ensure the smoothness of the surface of the steel bars to meet the requirements of the subsequent processing or coating adhesion. Of course, the blowing air to the steel bars can utilize the convection of the air to further uniformly cool the steel bars, reduce the internal stress cracks of the steel bars due to the large temperature difference, and also can assist in cooling by blowing air, appropriately reduce the water flow or the spraying pressure in the water cooling stage, and reduce the consumption of water resources. The slag receiving box 84 arranged below the roller bed can collect the impurities blown down by the fans 81, prevent the impurities from being scattered on the ground to pollute the environment in the factory and increase the subsequent cleaning work.

[0055] The implementation principle of the embodiment is that after the steel bars are rolled and sent to the roller bed 1 of the application, the top spraying unit 2 and the bottom spraying unit 3 are simultaneously started. The top spraying unit 2 can obtain water source from the pipeline specially supplying cooling water in the factory, and uniformly sprays the cooling water on the steel bars through the first spraying head 25. Since the amount of the recovered water obtained from the top spraying unit 2 by the early-stage recovered water tank 41 is limited, a small amount of pure water can be poured into the recovered water tank 41 when in use, so that the bottom spraying unit 3 can normally work in the early stage. With the continuous working of the top spraying unit 2 and the bottom spraying unit 3, the recovered water tank 41 can continuously obtain recovered water, so that the water in the recovered water tank 41 is sufficient to stably supply water to the bottom spraying unit 3. Even the excess recovered water can be transported to other water-using areas in the factory. After the water pump 43 sends the water in the recovered water tank 41 to the bottom spraying unit 3, the bottom spraying unit 3 can spray water to cool the lower half of the steel bars below the roller bed 1. In this way, the steel bars can obtain uniform and comprehensive water cooling effect on the roller bed 1 of the application. After the water cooling, the steel bars enter the protective wind cover 83 at the tail of the roller bed 1, and the fans 81 at the top of the protective wind cover 83 blow air to the steel bars to dry, cool and clean the steel bars.

[0056] The production process technicians can also freely adjust the angle, flow rate of the first spraying head 25 and the second spraying head 32, and the height of the first spraying head 25 according to the needs, and the practicability and flexibility of the application can be significantly improved compared with the prior art.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that; it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A cooling device for reinforcing bar production, comprising a roller conveyor cooling bed (1), characterized in that: The roller conveyor cooling bed (1) is provided with a plurality of top spraying units (2) on the upper side of one end close to the steel bar inlet along the length direction, and the plurality of top spraying units (2) can spray cooling water downward from the upper side of the roller conveyor cooling bed (1); The adjacent top spraying units (2) are spaced apart, and the roller conveyor cooling bed (1) is provided with a plurality of bottom spraying units (3) below the roller along the length direction, and the plurality of bottom spraying units (3) can spray cooling water upward from the lower side of the roller conveyor cooling bed (1), and the plurality of bottom spraying units (3) below the roller of the roller conveyor cooling bed (1) respectively face the gap between the adjacent two top spraying units (2) among the plurality of top spraying units (2). The roller conveyor cooling bed (1) is further provided with a cooling water recovery unit (4) below, and the cooling water recovery unit (4) can temporarily collect the water flow generated in the steel bar cooling process.

2. The cooling device for reinforcing bar production according to claim 1, characterized in that: The top spraying unit (2) comprises a main water distributor (21), the water inlet of the main water distributor (21) is connected with the cooling water supply pipeline in the factory through a metal hose (22), the main water distributor (21) is installed on the support rack (5) through an adjusting frame (23), the adjusting frame (23) can adjust the height of the main water distributor (21) in the vertical direction, a plurality of water inlets are arranged on the main water distributor (21), a water supply branch pipe (24) is arranged on each water inlet of the main water distributor (21), a plurality of first nozzles (25) are arranged on the lower side of each water supply branch pipe (24), and the first nozzles (25) on the adjacent water supply branch pipes (24) are arranged in a staggered manner.

3. The cooling device for reinforcing bar production according to claim 2, characterized in that: The adjusting frame (23) comprises an outer box body (231), and an inner box body (232) is slidably installed in the outer box body (231); The outer box body (231) is located outside the roller conveyor cooling bed (1) and is fixedly installed on the support rack (5), the inner box body (232) is fixedly connected with the main water distributor (21) in the corresponding position of the top spraying unit (2) through a pipe frame (233) close to one side of the roller conveyor cooling bed (1); A threaded adjusting rod (234) is inserted through the upper end of the inner box body (232) and is rotationally connected with the inner box body (232) through a bearing (235), a threaded section of the threaded adjusting rod (234) is inserted through a fixed block (236) and is threadedly connected with the fixed block (236), and the fixed block (236) is fixedly installed on the inner wall of the outer box body (231); A support beam (237) is fixedly arranged at a position close to the upper end of the inner side of the inner box body (232), the upper and lower ends of the outer ring of the bearing (235) are fixedly connected with the support beam (237) and the top plate of the inner box body (232), respectively, two limiting pieces (238) are fixedly connected with the threaded adjusting rod (234), and the two limiting pieces (238) are located on the mutually far sides of the top plate of the inner box body (232) and the support beam (237), respectively.

4. The cooling device for reinforcing bar production according to claim 2 or 3, characterized in that: The cooling water recovery unit (4) comprises a recovery water tank (41), the bottom of the recovery water tank (41) is provided with a water suction pipe (42) in the horizontal direction, one end of the water suction pipe (42) penetrates through the side wall of the recovery water tank (41) and is connected with the water inlet of the water pump (43) fixedly installed on the leg of the roller conveyor cooling bed (1), the water outlet of the water pump (43) is connected with a plurality of bottom spraying units (3) through a water outlet pipe (44), and the pipe section located below the plurality of bottom spraying units (3) is fixedly connected with the support bent frame (5) through a plurality of pipe clamps (45).

5. The cooling device for reinforcing bar production according to claim 4, characterized in that: One end of the water suction pipe (42) located in the recovery water tank (41) is fixedly connected with a filter cylinder (6).

6. The cooling device for reinforcing bar production according to claim 5, characterized in that: The bottom spraying unit (3) comprises a water supply horizontal pipe (31), one end of the water supply horizontal pipe (31) is connected with the water outlet pipe (44), and the upper side of the water supply horizontal pipe (31) is uniformly provided with a plurality of second spray heads (32) along the width direction of the roller conveyor cooling bed (1).

7. The cooling device for reinforcing bar production according to claim 6, characterized in that: The first spray head (25) and the second spray head (32) are both stainless steel adjustable spherical clamping nozzles.

8. The cooling device for reinforcing bar production according to claim 7, characterized in that: The water supply branch pipe (24) and the water supply horizontal pipe (31) are both provided with an adjusting valve (7).

9. The cooling device for reinforcing bar production according to claim 1, characterized in that: The tail part of the roller conveyor cooling bed (1) is provided with an air cooling unit (8), the air cooling unit (8) comprises a plurality of fans (81) uniformly arranged above the roller conveyor cooling bed (1) along the length direction of the roller conveyor cooling bed (1), the plurality of fans (81) are fixedly installed on the side support (82) located on one side of the roller conveyor cooling bed (1), the air outlets of the fans (81) are fixedly inserted into the top of the same protection wind cover (83), the lower end of the protection wind cover (83) is fixedly connected with the top of the protection side plate of the roller conveyor cooling bed (1) at the corresponding position, and the slag receiving box (84) is arranged at the position corresponding to the protection wind cover (83) below the roller conveyor cooling bed (1).

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