Strip steel circulating jet cooling device

Abstract

The utility model relates to a strip steel cooling device, concretely is strip steel circulating injection cooling device, including cooling box, the cooling box both ends are opened respectively and are used for passing the inlet and outlet of strip steel, the cooling box is fixed in the symmetry and is provided with lower guide piece and upper guide piece, and the upper guide piece is located the upper portion of lower guide piece, a plurality of guide rollers are rotationally arranged in the guide piece, the guide roller is used for driving strip steel to move, and the outer wall of guide roller is slidably provided with the limiting ring of limiting different width strip steel, the top center of cooling box is fixedly provided with the liquid storage tank for containing cooling liquid, the bottom of liquid storage tank is fixedly connected with the catheter, and the catheter is located in the cooling box, and the cooling box is provided with the liquid collecting area for collecting cooling liquid, the liquid collecting area collects the cooling liquid after spraying, and the cooling liquid is pumped back to the liquid storage tank through the connecting pipe by the pressure pump, forms the circulation, effectively reduces the cooling liquid consumption, reduces the cost.

Description

Technical Field

[0001] This utility model relates to a strip cooling device, and more particularly to a strip circulating spray cooling device. Background Technology

[0002] Steel strip, also known as steel bar, is generally supplied in coils and has advantages such as high dimensional accuracy, good surface quality, ease of processing, and material saving. The production of steel strip coils generally includes processes such as batching, smelting, casting, rolling, annealing, post-treatment, and coiling. Cooling is a crucial step in the production of steel strip, directly affecting its quality and performance.

[0003] Chinese Patent CN219279978U discloses a circulating jet cooling device. By feeding the strip steel into the cooling box from the rear inlet and outlet, starting the circulating fan to extract the hot gas in the cooling box and send it into the circulating pipe, starting the heat exchanger to convert the hot gas into cold gas, and then opening the gas valve, the cold gas enters the jet pipe and is sprayed out through the jet nozzles on the top and bottom of the strip steel, thereby cooling a section of strip steel on both sides, allowing for recycling and saving costs.

[0004] During the strip cooling process, due to differences in strip width and thickness, misalignment and surface extrusion damage are likely to occur, and the large consumption of coolant increases costs. Utility Model Content

[0005] The main purpose of this invention is to provide a strip steel circulating spray cooling device to solve the problems raised in related technologies.

[0006] To achieve the above objectives, according to one aspect of the present invention, a strip steel circulating spray cooling device is provided, comprising a cooling box, wherein the cooling box has an inlet and an outlet for strip steel to pass through at both ends, a lower guide and an upper guide are symmetrically fixed inside the cooling box, and the upper guide is located above the lower guide, and a plurality of guide rollers are rotatably arranged inside the guide, the guide rollers are used to drive the strip steel to move, and a limiting ring for limiting the movement of strip steel of different widths is slidably arranged on the outer wall of the guide rollers; a liquid storage tank for containing coolant is fixedly arranged at the center of the top of the cooling box, a conduit is fixedly connected to the bottom of the liquid storage tank, and the conduit is located inside the cooling box, and a collection area for collecting coolant is provided inside the cooling box.

[0007] Furthermore, the lower guide member includes a lower fixing plate fixedly disposed on the inner wall of the cooling box, and a plurality of first grooves are formed in the lower fixing plate, wherein a first guide roller is rotatably disposed in the first groove.

[0008] Furthermore, the lower fixing plate has several through holes through the first groove, and a first support plate is fixedly installed on the lower fixing plate between two adjacent first guide rollers.

[0009] Furthermore, a fixing ring is fixedly connected to one end of the first guide roller, the limiting ring is slidably disposed on the outer wall of the first guide roller, and a first spring is sleeved on the outer wall of the first guide roller. One end of the first spring is fixedly connected to the side wall of the fixing ring, and the other end is fixedly connected to the side wall of the limiting ring.

[0010] Furthermore, the upper guide includes an upper fixed plate fixedly disposed on the inner wall of the cooling box, the upper fixed plate having a plurality of second grooves, a second guide roller being rotatably disposed in the second grooves, and a second support plate being fixedly disposed on the upper fixed plate between two adjacent second guide rollers.

[0011] Furthermore, both ends of the second guide roller are fixedly connected to connecting shafts, and the upper fixing plate has limit grooves on both sides of the second groove. The connecting shafts are slidably disposed in the limit grooves, and pressure plates are slidably disposed in the limit grooves.

[0012] Furthermore, a fixing rod is symmetrically fixedly connected to the top of the pressure plate, and an installation groove communicating with the limiting groove is symmetrically opened in the upper fixing plate. The fixing rod is slidably disposed in the installation groove, and a second spring is fixedly connected to the center of the top of the pressure plate. The other end of the second spring is fixedly connected to the inner wall of the top of the limiting groove.

[0013] Furthermore, the conduit includes a long tube, a number of short tubes are fixedly connected to the top of the long tube, the short tubes are fixedly connected to the bottom of the liquid storage tank, a pump head is fixedly connected to one end of the short tube, and a number of branch tubes are symmetrically fixedly connected to the long tube, with a spray head fixedly connected to one end of each branch tube.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In this strip steel circulating spray cooling device, a limiting ring is slidably installed on the outer wall of the first guide roller and connected to the fixed ring through the first spring. When the strip steel enters the cooling device, the limiting ring can automatically adapt to strip steel of different widths under the action of the first spring, so that its side wall is in close contact with one side of the strip steel. This setting can effectively prevent the strip steel from shifting during movement, ensure that the strip steel maintains a stable position during the cooling process, and be safely output from the outlet, thereby improving the stability of the strip steel cooling process and the product quality.

[0016] 2. In this strip steel circulating spray cooling device, the connecting shafts at both ends of the second guide roller of the upper guide member are slidably set in the limiting groove, and adaptive adjustment is achieved through the pressure plate and the second spring. When the thickness of the strip steel to be cooled is large, the second guide roller is subjected to an upward thrust, and the connecting shaft will move upward along the limiting groove. At the same time, it pushes the pressure plate upward and compresses the second spring, so that the distance between the first guide roller and the second guide roller can be automatically adjusted according to the thickness of the strip steel. This setting avoids the problem of surface damage caused by the compression of the strip steel due to the fixed distance between the guide rollers, improves the adaptability of the device to strip steel of different thicknesses, and ensures the quality of the strip steel and production efficiency.

[0017] 3. In this strip steel circulating spray cooling device, the liquid collection area collects the coolant after spraying, and then pumps it back to the storage tank through the connecting pipe via a pressure pump to form a circulation, which effectively reduces coolant consumption and lowers costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the strip steel circulating jet cooling device in a preferred embodiment of this utility model;

[0019] Figure 2 This is a partial structural cross-sectional view of the strip steel circulating jet cooling device in a preferred embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the lower guide member in a preferred embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the overall structure of the first guide roller in a preferred embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the overall structure of the upper guide member in a preferred embodiment of the present invention;

[0023] Figure 6 This is a cross-sectional view of the upper guide member in a preferred embodiment of the present invention;

[0024] Figure 7 This is a preferred embodiment of the present invention. Figure 6 Enlarged schematic diagram of the structure at point A in the middle;

[0025] Figure 8 This is a schematic diagram of the overall structure of the catheter in a preferred embodiment of the present invention.

[0026] Figure label:

[0027] 1. Cooling tank; 11. Inlet; 12. Outlet; 13. Liquid collection area; 14. Baffle;

[0028] 2. Lower guide component; 21. Lower fixed plate; 22. First guide roller; 221. Fixed ring; 222. Limiting ring; 223. First spring; 23. First support plate; 24. First groove; 25. Through hole;

[0029] 3. Upper guide component; 31. Upper fixing plate; 32. Second guide roller; 321. Connecting shaft; 33. Second support plate; 34. Second groove; 35. Limiting groove; 36. Pressure plate; 361. Fixing rod; 37. Mounting groove; 38. Second spring;

[0030] 4. Liquid storage tank;

[0031] 5. Conduit; 51. Long pipe; 52. Short pipe; 53. Pump head; 54. Branch pipe; 55. Sprinkler head. Detailed Implementation

[0032] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0033] This embodiment provides a strip steel circulating spray cooling device, including a cooling box 1. The cooling box 1 has an inlet 11 and an outlet 12 for strip steel to pass through at both ends. A lower guide 2 and an upper guide 3 are symmetrically fixed inside the cooling box 1, and the upper guide 3 is located above the lower guide 2. Several guide rollers are rotatably arranged inside the guide rollers. The guide rollers are used to drive the strip steel to move, and a limiting ring 222 for limiting the movement of strip steel of different widths is slidably arranged on the outer wall of the guide rollers. A liquid storage tank 4 for containing coolant is fixedly arranged at the top center of the cooling box 1. A conduit 5 is fixedly connected to the bottom of the liquid storage tank 4, and the conduit 5 is located inside the cooling box 1. A collection area 13 for collecting coolant is provided inside the cooling box 1.

[0034] like Figure 1 , Figure 2 and Figure 3As shown, the lower guide 2 includes a lower fixed plate 21 fixedly disposed on the inner wall of the cooling box 1. The lower fixed plate 21 has several first grooves 24, and a first guide roller 22 is rotatably disposed in the first groove 24. A micro motor is fixedly disposed in the lower fixed plate 21, and the output shaft of the micro motor is fixedly connected to the rotation shaft of one of the first guide rollers 22. The micro motor drives the first guide roller 22 to rotate. When the strip enters the cooling box 1 from the inlet 11 and is located between the upper guide 3 and the lower guide 2, the guide roller will be in close contact with the surface of the strip and have a certain friction. The rotation of one of the first guide rollers 22 will drive the strip to move towards the outlet 12. The rotation of the first guide roller 22 will drive the other guide rollers to rotate, effectively avoiding damage to the surface of the strip.

[0035] like Figure 3 As shown, the lower fixing plate 21 has several through holes 25 through the first groove 24. During the process of cooling the strip by spraying coolant, some coolant will enter the first groove 24. Excessive accumulation will cause damage to the guide roller. The through holes 25 effectively prevent coolant accumulation. A first support plate 23 is fixedly installed on the lower fixing plate 21 between two adjacent first guide rollers 22. The first support plate 23 is used to provide additional support to prevent the strip from sagging due to gravity.

[0036] like Figure 4 As shown, a fixing ring 221 is fixedly connected to one end of the first guide roller 22, and the limiting ring 222 is slidably disposed on the outer wall of the first guide roller 22. A first spring 223 is sleeved on the outer wall of the first guide roller 22. One end of the first spring 223 is fixedly connected to the side wall of the fixing ring 221, and the other end is fixedly connected to the side wall of the limiting ring 222. In use, the two ends of the strip are located on the first guide roller 22 of the two lower guide members 2. Due to the setting of the first spring 223, the limiting ring 222 slides along the surface of the first guide roller 22 under the elastic force of the first spring 223, so that the side wall of the limiting ring 222 contacts one side of the strip. The limiting ring 222 effectively prevents the strip from deviating during the movement, thereby ensuring that it is stably output from the outlet 12.

[0037] like Figure 2 and Figure 5 As shown, the upper guide member 3 includes an upper fixed plate 31 fixedly installed on the inner wall of the cooling box 1. The upper fixed plate 31 has a plurality of second grooves 34. A second guide roller 32 is rotatably installed in the second groove 34. The second guide roller 32 corresponds to the position of the first guide roller 22. A second support plate 33 is fixedly installed on the upper fixed plate 31 between two adjacent second guide rollers 32.

[0038] like Figure 6 and Figure 7As shown, the second guide roller 32 is fixedly connected to both ends of a connecting shaft 321. The upper fixing plate 31 has limit grooves 35 on both sides of the second groove 34. The connecting shaft 321 is slidably disposed in the limit groove 35, and a pressure plate 36 is slidably disposed in the limit groove 35. The pressure plate 36 is arc-shaped, and the inner wall of the pressure plate 36 contacts the outer wall of the connecting shaft 321. The inner wall of the pressure plate 36 is smooth and does not affect the rotation of the connecting shaft 321 with the second guide roller 32.

[0039] like Figure 7 As shown, a fixing rod 361 is symmetrically fixedly connected to the top of the pressure plate 36, and an installation groove 37 communicating with the limiting groove 35 is symmetrically opened in the upper fixing plate 31. The fixing rod 361 is slidably disposed in the installation groove 37, and a second spring 38 is fixedly connected to the center of the top of the pressure plate 36. The other end of the second spring 38 is fixedly connected to the inner wall of the top of the limiting groove 35.

[0040] like Figure 7 As shown, when the thickness of the strip to be cooled is large, the second guide roller 32 is pushed upward, causing the connecting shaft 321 to move upward along the limiting groove 35. At the same time, it pushes the pressure plate 36 upward and compresses the second spring 38, so that strips of different thicknesses can pass smoothly through the guide, avoiding the strip surface damage caused by squeezing when the distance between the first guide roller 22 and the second guide roller 32 is fixed. Moreover, the setting of the fixing rod 361 is very necessary. Without the fixing rod 361, the pressure plate 36 may deviate when it is pushed downward by the second spring 38, causing the second spring 38 to bend and deform. Therefore, the setting of the fixing rod 361 ensures the linear movement of the pressure plate 36.

[0041] like Figure 1 , Figure 2 and Figure 8 As shown, the conduit 5 includes a long pipe 51, with several short pipes 52 fixedly connected to the top of the long pipe 51. The short pipes 52 are fixedly connected to the bottom of the liquid storage tank 4. A pump head 53 is fixedly connected to one end of each short pipe 52. The pump head 53 is located inside the liquid storage tank 4. Several branch pipes 54 are also symmetrically fixedly connected to the long pipe 51. A spray head 55 is fixedly connected to one end of each branch pipe 54. The coolant in the liquid storage tank 4 is pumped through the short pipes 52 to the long pipe 51 by the pump head 53, and then distributed to the branch pipes 54. Finally, the spray head 55 sprays the coolant evenly onto the surface of the strip steel, thereby cooling the strip steel.

[0042] like Figure 2As shown, the liquid collection area 13 has inclined surfaces on both sides, and a partition 14 is fixedly installed on the liquid collection area 13 to prevent impurities from falling into the liquid collection area 13. The partition 14 has several filter holes for coolant to pass through. After the coolant is sprayed onto the strip steel through the conduit 5, it falls into the liquid collection area 13 through the partition 14 and is collected. A connecting pipe is fixedly connected between the liquid collection area 13 and the liquid storage tank 4, and a pressure pump is fixedly connected to one end of the connecting pipe located in the liquid collection area 13. The collected coolant is pumped to the liquid storage tank 4 through the connecting pipe to realize the recycling of coolant and avoid resource waste. The bottom of the liquid collection area 13 is provided with a liquid outlet, and a sealing cap is provided on the liquid outlet so that contaminated coolant can be discharged through the liquid outlet.

[0043] In practical use, the strip steel to be cooled is introduced into the inlet 11 of the cooling box 1, so that the strip steel is positioned between the upper guide member 3 and the lower guide member 2. At this time, both ends of the strip steel are placed on the first guide rollers 22 of the two lower guide members 2 respectively. Due to the action of the first spring 223, the limiting ring 222 will slide along the surface of the first guide roller 22, and its sidewall will contact one side of the strip steel. If the strip steel is thick, the second guide roller 32 will be subjected to an upward thrust, causing the connecting shaft 321 to move upward along the limiting groove 35, while pushing the pressure plate 36 upward and compressing the second spring 38, thereby allowing strip steel of different thicknesses to pass smoothly through the guide members. The micro motor is started to drive it. One of the first guide rollers 22 rotates, which drives the strip steel to move towards the outlet 12. At the same time, it also drives the other guide rollers to rotate, so that the strip steel moves stably under the drive of the guide rollers. The coolant in the storage tank 4 is pumped through the short pipe 52 to the long pipe 51 through the pump head 53, and then distributed to the branch pipe 54. Then, it is evenly sprayed onto the surface of the strip steel by the spray head 55 to cool the strip steel. After the coolant is sprayed onto the strip steel, it falls into the collection area 13 through the partition 14 and is collected. The pressure pump in the collection area 13 pumps the collected coolant to the storage tank 4 through the connecting pipe to realize the recycling of the coolant. The cooled strip steel is output from the outlet 12.

[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A strip steel circulating spray cooling device, comprising a cooling tank (1), wherein the cooling tank (1) has an inlet (11) and an outlet (12) for passing strip steel at both ends, characterized in that, The cooling box (1) is symmetrically fixed with a lower guide (2) and an upper guide (3), and the upper guide (3) is located above the lower guide (2). Several guide rollers are rotatably arranged inside the guide, and the guide rollers are used to drive the strip steel to move. The outer wall of the guide rollers is slidably provided with a limiting ring (222) for limiting the strip steel of different widths. A liquid storage tank (4) for containing coolant is fixedly arranged at the top center of the cooling box (1). A conduit (5) is fixedly connected to the bottom of the liquid storage tank (4), and the conduit (5) is located inside the cooling box (1). A liquid collection area (13) for collecting coolant is provided inside the cooling box (1).

2. The strip steel circulating spray cooling device according to claim 1, characterized in that, The lower guide member (2) includes a lower fixing plate (21) fixedly disposed on the inner wall of the cooling box (1). The lower fixing plate (21) has a plurality of first grooves (24) and a first guide roller (22) is rotatably disposed in the first groove (24).

3. The strip steel circulating spray cooling device according to claim 2, characterized in that, The lower fixing plate (21) has several through holes (25) through the first groove (24), and a first support plate (23) is fixedly installed on the lower fixing plate (21) between two adjacent first guide rollers (22).

4. The strip steel circulating spray cooling device according to claim 2, characterized in that, One end of the first guide roller (22) is fixedly connected to a fixing ring (221), the limiting ring (222) is slidably disposed on the outer wall of the first guide roller (22), and a first spring (223) is sleeved on the outer wall of the first guide roller (22). One end of the first spring (223) is fixedly connected to the side wall of the fixing ring (221), and the other end is fixedly connected to the side wall of the limiting ring (222).

5. The strip steel circulating spray cooling device according to claim 2, characterized in that, The upper guide member (3) includes an upper fixing plate (31) fixedly installed on the inner wall of the cooling box (1). The upper fixing plate (31) has a plurality of second grooves (34) in it. A second guide roller (32) is rotatably installed in the second groove (34). A second support plate (33) is fixedly installed on the upper fixing plate (31) between two adjacent second guide rollers (32).

6. The strip steel circulating spray cooling device according to claim 5, characterized in that, The second guide roller (32) is fixedly connected to both ends of a connecting shaft (321). The upper fixing plate (31) is provided with limiting grooves (35) on both sides of the second groove (34). The connecting shaft (321) is slidably disposed in the limiting groove (35), and a pressure plate (36) is slidably disposed in the limiting groove (35).

7. The strip steel circulating jet cooling device according to claim 6, characterized in that, The pressure plate (36) is symmetrically fixedly connected to the top of a fixing rod (361). The upper fixing plate (31) is symmetrically provided with an installation groove (37) communicating with the limiting groove (35). The fixing rod (361) is slidably disposed in the installation groove (37). A second spring (38) is fixedly connected to the center of the top of the pressure plate (36). The other end of the second spring (38) is fixedly connected to the inner wall of the top of the limiting groove (35).

8. The strip steel circulating spray cooling device according to claim 1, characterized in that, The conduit (5) includes a long tube (51), a number of short tubes (52) are fixedly connected to the top of the long tube (51), the short tubes (52) are fixedly connected to the bottom of the storage tank (4), a pump head (53) is fixedly connected to one end of the short tubes (52), and a number of branch tubes (54) are symmetrically fixedly connected to the long tube (51), and a spray head (55) is fixedly connected to one end of the branch tubes (54).

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